CN111238162A - Low-temperature liquid treatment device and construction method thereof - Google Patents
Low-temperature liquid treatment device and construction method thereof Download PDFInfo
- Publication number
- CN111238162A CN111238162A CN202010205193.XA CN202010205193A CN111238162A CN 111238162 A CN111238162 A CN 111238162A CN 202010205193 A CN202010205193 A CN 202010205193A CN 111238162 A CN111238162 A CN 111238162A
- Authority
- CN
- China
- Prior art keywords
- accommodating
- opening
- liquid
- inner cavity
- reinforcing
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 239000007788 liquid Substances 0.000 title claims abstract description 167
- 238000010276 construction Methods 0.000 title claims abstract description 6
- 230000001681 protective effect Effects 0.000 claims abstract description 33
- 230000003014 reinforcing effect Effects 0.000 claims abstract description 32
- 239000000463 material Substances 0.000 claims description 9
- 238000000034 method Methods 0.000 claims description 9
- 230000002787 reinforcement Effects 0.000 claims description 4
- 239000012779 reinforcing material Substances 0.000 claims description 3
- 238000005728 strengthening Methods 0.000 claims 1
- 239000003380 propellant Substances 0.000 abstract description 55
- 239000002699 waste material Substances 0.000 abstract description 24
- 230000008901 benefit Effects 0.000 abstract description 5
- 239000007789 gas Substances 0.000 description 39
- 208000028659 discharge Diseases 0.000 description 29
- 238000004880 explosion Methods 0.000 description 9
- 238000012545 processing Methods 0.000 description 9
- 238000002485 combustion reaction Methods 0.000 description 7
- 239000000126 substance Substances 0.000 description 6
- MYMOFIZGZYHOMD-UHFFFAOYSA-N Dioxygen Chemical compound O=O MYMOFIZGZYHOMD-UHFFFAOYSA-N 0.000 description 5
- 239000001257 hydrogen Substances 0.000 description 5
- 229910052739 hydrogen Inorganic materials 0.000 description 5
- 239000010959 steel Substances 0.000 description 5
- 229910000831 Steel Inorganic materials 0.000 description 4
- 230000004308 accommodation Effects 0.000 description 4
- 238000011835 investigation Methods 0.000 description 4
- 238000012423 maintenance Methods 0.000 description 4
- 239000000203 mixture Substances 0.000 description 4
- 239000000446 fuel Substances 0.000 description 3
- 230000017525 heat dissipation Effects 0.000 description 3
- 150000002431 hydrogen Chemical class 0.000 description 3
- 239000003949 liquefied natural gas Substances 0.000 description 3
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 2
- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 description 2
- 230000000903 blocking effect Effects 0.000 description 2
- 238000009835 boiling Methods 0.000 description 2
- WFPZPJSADLPSON-UHFFFAOYSA-N dinitrogen tetraoxide Chemical compound [O-][N+](=O)[N+]([O-])=O WFPZPJSADLPSON-UHFFFAOYSA-N 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000007800 oxidant agent Substances 0.000 description 2
- 230000001590 oxidative effect Effects 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- RHUYHJGZWVXEHW-UHFFFAOYSA-N 1,1-Dimethyhydrazine Chemical compound CN(C)N RHUYHJGZWVXEHW-UHFFFAOYSA-N 0.000 description 1
- 229910000838 Al alloy Inorganic materials 0.000 description 1
- 229910000851 Alloy steel Inorganic materials 0.000 description 1
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 1
- 238000012369 In process control Methods 0.000 description 1
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000002360 explosive Substances 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 238000013467 fragmentation Methods 0.000 description 1
- 238000006062 fragmentation reaction Methods 0.000 description 1
- 238000007710 freezing Methods 0.000 description 1
- 230000008014 freezing Effects 0.000 description 1
- 238000010965 in-process control Methods 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 239000003350 kerosene Substances 0.000 description 1
- HDZGCSFEDULWCS-UHFFFAOYSA-N monomethylhydrazine Chemical compound CNN HDZGCSFEDULWCS-UHFFFAOYSA-N 0.000 description 1
- 229910017604 nitric acid Inorganic materials 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000007480 spreading Effects 0.000 description 1
- 238000013022 venting Methods 0.000 description 1
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D31/00—Other cooling or freezing apparatus
- F25D31/002—Liquid coolers, e.g. beverage cooler
-
- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62C—FIRE-FIGHTING
- A62C2/00—Fire prevention or containment
- A62C2/06—Physical fire-barriers
-
- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03F—SEWERS; CESSPOOLS
- E03F5/00—Sewerage structures
- E03F5/10—Collecting-tanks; Equalising-tanks for regulating the run-off; Laying-up basins
-
- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03F—SEWERS; CESSPOOLS
- E03F5/00—Sewerage structures
- E03F5/10—Collecting-tanks; Equalising-tanks for regulating the run-off; Laying-up basins
- E03F5/105—Accessories, e.g. flow regulators or cleaning devices
Landscapes
- Engineering & Computer Science (AREA)
- Health & Medical Sciences (AREA)
- Public Health (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Water Supply & Treatment (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Filling Or Discharging Of Gas Storage Vessels (AREA)
Abstract
The present invention provides a cryogenic liquid treatment apparatus comprising: the accommodating structure comprises an accommodating inner cavity which is formed below the ground and used for accommodating liquid, and a first opening which is used for communicating the accommodating inner cavity with the outside; the reinforcing structure is arranged on the inner wall surface of the accommodating structure and is used for reinforcing the accommodating inner cavity; the protective structure is arranged at the periphery of the first opening and is provided with a protective body extending along the direction far away from the accommodating structure; the heat conduction structure is located above the bottom wall surface of the containing structure, and a reinforcing structure is arranged between the heat conduction structure and the containing structure. The device is used for treating the waste liquid propellant, large-scale equipment is not needed, and the treatment cost and the treatment difficulty of waste liquid are effectively reduced. The device has the advantages of small occupied area, capability of realizing the treatment of the waste liquid propellant with large flow, low cost, large treatment flow and high treatment efficiency. The invention also discloses a construction method of the low-temperature liquid treatment device, which is suitable for constructing the device.
Description
Technical Field
The invention relates to the technical field of liquid treatment, in particular to a low-temperature liquid treatment device and a construction method thereof.
Background
The rocket propellant is a substance for providing energy and working medium for a rocket engine, and releases chemical energy and converts the chemical energy into working substance (working medium for short) capable of generating thrust through combustion and decomposition in the engine. Liquid propellants typically include fuels, oxidizers. The fuel is a substance that reduces and releases energy when burned, and the oxidant (also called a combustion improver) is a substance that oxidizes when burned. The liquid fuel for rocket mainly comprises liquid hydrogen, methyl hydrazine, unsym-dimethyl hydrazine, kerosene, alcohol and the like, and the liquid oxidant mainly comprises liquid oxygen, dinitrogen tetroxide, hydrogen peroxide, nitric acid and the like.
With the continuous development of the aerospace industry, the demand of liquid propellants such as liquid oxygen, liquid hydrogen, liquefied natural gas and the like is continuously increased. Because the boiling point of liquid propellant such as liquid hydrogen (-253 ℃), liquid oxygen (-183 ℃) and the like is low, the liquid propellant can be rapidly evaporated in the air, and the formed steam and the air form an explosive mixture to cause serious safety accidents such as fire, explosion and the like. At present, the treatment method of the waste liquid propellant comprises high-altitude discharge, incinerator treatment and the like, wherein when the waste liquid propellant is treated by the high-altitude discharge, when a large amount of waste low-temperature liquid is treated, steam formed after the low-temperature liquid is discharged is easy to sinkTo close proximity, resulting in a higher risk of explosion. Therefore, the method of high altitude venting is only suitable for treating small amounts of cryogenic liquid propellant. Incinerator treatment is the combustion of waste liquid to CO in the combustion chamber of an incinerator2And H2O and the like. However, due to the large investment in incinerator processing technology, high requirements on operating level and maintenance level, and high difficulty in process control, there is still a risk of explosion during the combustion process.
Disclosure of Invention
Therefore, the technical problem to be solved by the invention is to overcome the defects of small treatment flow, high cost and explosion risk in the treatment of the waste low-temperature liquid propellant in the prior art.
Therefore, the invention provides the following technical scheme:
in a first aspect, the present invention provides a cryogenic liquid treatment plant comprising:
the accommodating structure comprises an accommodating inner cavity which is formed below the ground and used for accommodating liquid, and a first opening which is used for communicating the accommodating inner cavity with the outside;
the reinforcing structure is arranged on the inner wall surface of the accommodating structure and is used for reinforcing the accommodating inner cavity;
the protective structure is arranged at the periphery of the first opening and is provided with a protective body extending along the direction far away from the accommodating structure;
the heat conduction structure is located above the bottom wall surface of the containing structure, and the reinforcing structure is arranged between the heat conduction structure and the containing structure.
Optionally, in the cryogenic liquid treatment apparatus, the accommodating structure has a vertical wall surface located below the ground and a bottom wall surface connected to the vertical wall surface, the vertical wall surface and the bottom wall surface enclose the accommodating inner cavity, and the top of the accommodating structure forms the first opening;
preferably, the lateral interface of the receiving structure is rectangular or circular.
Optionally, in the cryogenic liquid treatment plant described above, the reinforcing structure is a concrete layer covering the vertical wall and the bottom wall of the accommodating structure.
Optionally, in the cryogenic liquid treatment plant described above, the heat conducting structure is a layer of cobblestones laid on the reinforcing structure.
Optionally, in the cryogenic liquid treatment apparatus, the protective body is a retaining wall disposed at the periphery of the first opening of the accommodating structure;
preferably, the protective body comprises at least two retaining walls arranged around the first opening, wherein a second opening with a required gap is reserved between at least one retaining wall and the adjacent retaining wall.
Optionally, the cryogenic liquid treatment plant further comprises: and the gas concentration sensor is positioned in the space surrounded by the protective structure and is arranged at a required height away from the first opening.
Optionally, the cryogenic liquid treatment plant further comprises: and the outlet of the liquid discharge pipeline corresponds to the first opening of the accommodating structure, so that the liquid in the liquid discharge pipeline flows into the accommodating inner cavity.
Further optionally, in the cryogenic liquid treatment apparatus, a pipeline layer is coated outside the liquid discharge pipeline, and the pipeline layer refrigerates the liquid discharge pipeline.
In a second aspect, the present invention provides a method for constructing the cryogenic liquid treatment plant, including the following steps:
s1, excavating the ground at the selected position, forming an accommodating inner cavity for accommodating liquid below the ground and a first opening for communicating the accommodating inner cavity with the outside to obtain an accommodating structure;
s2, pouring a reinforcing material on the inner wall surface of the accommodating structure to form a reinforcing structure;
s3, paving a heat conduction material on the reinforced structure corresponding to the bottom wall surface of the accommodating structure to form a heat conduction structure;
and S4, building a protective body extending along the direction far away from the accommodating structure on the periphery of the first opening to form a protective structure.
Optionally, the building method further includes:
s5, setting up a liquid discharge pipeline above the accommodating structure, wherein an outlet of the liquid discharge pipeline is arranged corresponding to the first opening of the accommodating structure, and the outer side of the discharge pipeline is coated with a pipeline layer;
and S6, arranging a gas concentration sensor in the space surrounded by the protective structure and at the required height from the first opening.
The technical scheme provided by the invention has the following advantages:
1. the invention provides a low-temperature liquid treatment device which comprises an accommodating structure, a reinforcing structure, a protective structure and a heat conduction structure. The containing structure comprises a containing inner cavity formed below the ground and used for containing liquid, and a first opening used for communicating the containing inner cavity with the outside. Waste low-temperature liquid propellant is discharged into the containing inner cavity from the first opening, and the inner wall surface of the containing structure is provided with a reinforcing structure for reinforcing the containing inner cavity, so that the influence of the low temperature of the liquid propellant on the containing structure (liquid hydrogen-253 ℃, liquid oxygen-183 ℃) can be effectively reduced, the generated large-scale fragmentation and collapse can be effectively reduced, and the stability of the containing inner cavity for containing the low-temperature liquid propellant can be improved. After the low-temperature liquid propellant is discharged into the accommodating cavity, the low-temperature liquid propellant can be volatilized into gas to be diffused outwards through the first opening due to the low boiling point of the low-temperature liquid propellant. A protective structure is arranged on the periphery of the first opening, and the protective structure is provided with a protective body extending away from the accommodating structure. The first opening is surrounded by the protective body, so that the volatile gas of the low-temperature liquid propellant can be prevented from being diffused to the periphery in a large area after leaving the first opening. The protection body extends in the direction of keeping away from the holding structure, can guide the volatile gaseous emission of low temperature liquid propellant to the eminence far away from ground, prevents that low temperature liquid propellant from forming combustible gas mixture at the position that is nearer apart from ground with the air mixture. The protective structure can also isolate an ignition source, so that the probability of safety accidents is reduced. In addition, can also keep apart cryogenic liquids processing apparatus and ground building or crowd through setting up protective structure, if cryogenic liquids propellant's volatile gas burning, can avoid the intensity of a fire to outwards stretch, in time adopt the countermeasure. The heat conduction structure arranged above the bottom wall surface of the containing structure can accelerate heat dissipation of the low-temperature liquid propellant in the containing inner cavity, so that volatilization efficiency of the low-temperature liquid is improved, treatment efficiency of the low-temperature liquid propellant is accelerated, and treatment flow of the waste low-temperature liquid propellant is increased.
The low-temperature liquid treatment device is used for treating the waste liquid propellant, large-scale combustion equipment is not needed, and the treatment cost and the treatment difficulty of waste liquid are effectively reduced. In addition, the low-temperature liquid treatment device has small occupied area, is suitable for expanding the volume of the accommodating inner cavity, realizes the treatment of the large-flow waste liquid propellant, and has the advantages of low cost, large treatment flow, high treatment efficiency and effective reduction of explosion accidents and accident spread.
2. The invention provides a low-temperature liquid treatment device, wherein an accommodating structure is provided with an underground vertical wall surface and a bottom wall surface connected with the vertical wall surface, and a first opening is formed at the top of the accommodating structure. The accommodation structure of the arrangement mode occupies small area and is convenient for expanding the accommodation inner cavity. The first opening forms the top with the holding structure, is convenient for abandonment cryogenic liquid's the income and the discharge of volatile gas, improves the treatment effeciency to cryogenic liquid propellant.
3. According to the low-temperature liquid treatment device provided by the invention, the reinforced structure is the concrete layer covering the vertical wall surface and the bottom wall surface of the containing structure, the concrete layer can be used for increasing the strength and the frost resistance of the vertical wall surface and the bottom wall surface of the containing structure, and after the waste low-temperature liquid propellant is discharged into the containing inner cavity, the low-temperature liquid propellant can release a large amount of cold energy in the volatilization process. The concrete layer with certain strength and frost resistance is used for blocking the cold quantity, and the accommodating structure is prevented from being cracked and collapsed on a large scale.
The heat conduction structure of the low-temperature liquid treatment device is a cobblestone layer laid above the fastening structure, the cobblestone layer has good heat dissipation performance, waste liquid treatment and volatilization can be accelerated, and waste liquid treatment efficiency is improved. In addition, the cobblestone layer is beneficial to further improving the strength of the accommodating structure.
The protective body of the low-temperature liquid treatment device is arranged on a retaining wall on the periphery of the first opening of the containing structure, and the retaining wall encloses the first opening of the containing structure to guide the volatile gas of the liquid propellant to be emptied to a high position, so that the volatile gas is prevented from diffusing outwards at a position close to the ground to cause a burning and explosion accident. In addition, the retaining wall can also play the advantage of keeping apart the fire source to and carry out the restriction to the intensity of a fire after the burning. The second opening arranged between the retaining wall and the adjacent retaining wall facilitates the on-site investigation of the treated waste liquid and the maintenance of the low-temperature liquid treatment device.
4. The low-temperature liquid treatment device provided by the invention also comprises a gas concentration sensor, the gas concentration sensor is used for detecting the volatile gas on site, and when the concentration of the volatile gas reaches a safe concentration value, the low-temperature liquid treatment device can enter the site for investigation and device maintenance.
5. The low-temperature liquid treatment device further comprises a liquid discharge pipeline, wherein an outlet of the liquid discharge pipeline corresponds to the first opening of the accommodating structure, so that waste low-temperature liquid propellant can flow into the accommodating inner cavity of the accommodating structure through the conveying of the discharge pipeline and is subjected to one-step volatilization treatment in the accommodating inner cavity.
The outside of the liquid discharge pipeline is coated with a pipeline layer, and the pipeline layer is used for refrigerating, so that the low-temperature liquid in the liquid discharge pipeline can maintain a liquid state, and the pipeline is kept smooth.
6. The method for building the low-temperature liquid treatment device can construct and obtain the low-temperature liquid treatment device with low cost, large treatment flow and high treatment efficiency, and realizes efficient discharge and treatment of the waste low-temperature liquid propellant.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.
Fig. 1 is a schematic structural view of a cryogenic liquid treatment plant provided in a first embodiment of the present invention;
FIG. 2 is a schematic view of the first opening and liquid discharge line of the cryogenic liquid treatment plant shown in FIG. 1;
FIG. 3 is a top plan view of the cryogenic liquid treatment plant shown in FIG. 1;
description of reference numerals:
1-an accommodation structure, 11-a vertical wall, 12-a bottom wall, 13-a first opening; 2-reinforcing the structure; 3-a heat conducting structure; 4-guard structure, 41-guard, 42-second opening; 5-liquid drain line, 51-line layer; 6-gas concentration sensor.
Detailed Description
The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
In addition, the technical features involved in the different embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.
Example 1
The present embodiment provides a cryogenic liquid processing apparatus, as shown in fig. 1-3, comprising a receiving structure 1, a reinforcing structure 2, a protecting structure 4 and a heat conducting structure 3, as shown in fig. 1, the receiving structure 1 has a receiving cavity formed below the ground for receiving liquid, and a first opening 13 for communicating the receiving cavity with the outside. The inner wall of the accommodating structure 1 is provided with a reinforcing structure 2 for reinforcing the accommodating inner cavity, and the reinforcing structure 2 on the bottom wall 12 of the accommodating structure 1 is provided with a heat conducting structure 3. The periphery of the first opening 13 of the accommodating structure 1 is provided with a protective structure 4, and the protective structure 4 is provided with a protective body 41 extending along the direction of the accommodating structure 1.
In the cryogenic liquid treatment apparatus, the accommodating cavity of the accommodating structure 1 is used as a receiving cavity for cryogenic liquid propellant, and waste cryogenic liquid propellant (liquid oxygen, liquid hydrogen, liquefied natural gas LNG, etc.) is discharged into the accommodating cavity through the first opening 13, and is volatilized into gas in the accommodating cavity, and the volatilized gas is discharged through the first opening 13 of the accommodating structure 1. The low-temperature liquid propellant is low in temperature (liquid hydrogen is-253 ℃, and liquid oxygen is-183 ℃), a large amount of cold energy can be released in the volatilization process, the reinforcing structure 2 arranged on the inner wall surface of the containing structure 1 can reinforce the containing inner cavity, and the containing structure 1 is prevented from being influenced by the low temperature of the liquid propellant to be cracked and collapsed on a large scale. The heat conduction structure 3 arranged on the reinforcing structure 2 above the bottom wall surface 12 of the accommodating structure 1 can accelerate volatilization of the low-temperature liquid propellant by utilizing the heat conduction characteristic of the heat conduction structure, and improves the processing flow of the low-temperature liquid propellant. After the volatile gas of the low-temperature liquid propellant is discharged through the first opening 13, the volatile gas can be prevented from diffusing to the periphery under the blocking of the peripheral protective structure 4 of the first opening 13, and the volatile gas is guided to the periphery after being guided to the high altitude through the guide of the protective body 41 extending along the direction far away from the accommodating structure 1, so that the burning and explosion accidents of the volatile gas at the position close to the ground are prevented. The device is used for treating the waste low-temperature liquid propellant, the flow of the propellant is not limited, and the discharge treatment of the large-flow propellant can be realized; and the operation is simple, convenient and fast, and the operation difficulty is low. The treatment device does not introduce large-scale equipment and instruments, has the advantage of low cost, occupies small area, and is convenient for expanding the capacity of the accommodating inner cavity so as to improve the treatment flow. In addition, the low-temperature liquid processing device carries out the discharge processing of the low-temperature liquid propellant in a relatively open space, and can avoid the explosion accident caused by the pressure action of the exerted gas of the propellant; and if gas burning accident happens, the protective structure 4 can prevent the fire from spreading, so that the processing safety of the low-temperature liquid propellant is improved.
In one embodiment, as shown in fig. 1 and 2, the accommodating structure 1 has a vertical wall 11 formed below the ground and a bottom wall 12 connecting the vertical wall 11, the vertical wall 11 and the bottom wall 12 enclose an accommodating cavity, and a first opening 13 is formed at the top of the accommodating structure 1. A first opening 13 is formed in the top of the containment structure 1 to facilitate the ingress of spent cryogenic liquid propellant and the egress of volatile gases. The receiving structure 1 may be configured as a rectangular parallelepiped, a square, a cylinder, etc., so that its cross section is rectangular, square, or circular, etc. Specifically, the accommodating structure 1 is a pit dug under the ground, the accommodating cavity is an internal space formed in the dug pit, and the top opening of the pit is used as the first opening 13. The lateral cross-section of the pit is rectangular, square or circular, etc. The pit is used as the accommodating structure 1, so that the floor area of the low-temperature liquid treatment device is reduced, and the construction is convenient.
In one embodiment, as shown in fig. 1, the reinforcing structure 2 is a concrete layer covering the bottom wall 12 and the vertical wall 11 of the containing structure 1. The strength and the frost resistance of the containing structure 1 are improved by the concrete layer, and the containing structure 1 is prevented from cracking and collapsing on a large scale due to the influence of the ultralow temperature of the liquid propellant after the low-temperature liquid propellant is discharged into the containing inner cavity. In order to further increase the strength of the reinforcing structure 2, a mixture of reinforcing mesh, steel plate or fiber may be added to the concrete layer. As an alternative, the reinforcing structure 2 can also be replaced by other materials having a resistance to freezing and having the required strength, such as steel or aluminium alloy sheets, etc.
In one embodiment, as shown in fig. 1, the heat conducting structure 3 is a cobblestone layer laid on the reinforcing structure 2, specifically, the cobblestone layer is laid on the top of the reinforcing structure 2 on the bottom wall 12 of the accommodating structure 1, and the heat dissipation and volatilization of the low-temperature liquid propellant in the accommodating cavity are accelerated by utilizing the heat conduction property of the cobblestones, so as to improve the treatment efficiency of the waste low-temperature liquid propellant.
In one embodiment, as shown in fig. 1 and 3, the protection structure 4 is a retaining wall disposed at the periphery of the first opening 13 of the accommodating structure 1, the retaining wall extends along a direction away from the accommodating structure 1, and can guide the gas volatilized from the first opening 13 to be discharged to a high place, so as to prevent the volatilized gas from diffusing outward at a position close to the ground and causing a burning and explosion accident at a position close to the ground after being mixed with air. In addition, the retaining wall can also be used for isolating a fire source and limiting the fire after combustion. The retaining wall disposed around the first opening 13 has at least 2 sides, wherein a second opening 42 having a desired gap is reserved between at least one retaining wall and an adjacent retaining wall. For example, 4 retaining walls are disposed around the first opening 13, which are referred to as first, second, third, and fourth retaining walls for convenience of description, wherein the first retaining wall and the third retaining wall are disposed opposite to each other, the second retaining wall is disposed adjacent to the first retaining wall and the third retaining wall on both vertical sides thereof, the fourth retaining wall is disposed opposite to the second retaining wall, and the second openings 42 are disposed between the fourth retaining wall and the first retaining wall and the third retaining wall on both vertical sides thereof, respectively. Through setting up second opening 42, be convenient for waste cryogenic liquid propellant to handle the back of accomplishing, get into the scene and carry out the reconnaissance to confirm the damage degree of reinforced structure 2, accommodation structure 1 etc. be convenient for maintain cryogenic liquid processing apparatus. Alternatively, the number of the retaining walls may be 2, 3, 5, etc., as long as the first opening 13 can be enclosed to discharge the volatile gas to a high place. Alternatively, the second opening 42 may be provided only on the side of the fourth retaining wall adjacent to the first retaining wall or the second retaining wall, or the second opening 42 may be provided on the side of the first retaining wall adjacent to the second retaining wall, the second retaining wall adjacent to the third retaining wall, and so on. The specific setting position and size of second opening 42 can satisfy and supply personnel to get into on-the-spot investigation to the furthest reduces the outside gas that volatilizees of volatilizing reveal can.
In one embodiment, as shown in fig. 1-3, the cryogenic liquid treatment plant further comprises a liquid discharge line 5 for delivering spent cryogenic liquid propellant. The outlet of the liquid discharge line 5 is arranged in correspondence of the first opening 13 of the containing structure 1 so as to enable the cryogenic liquid propellant delivered by the liquid discharge line 5 to flow into the containing cavity. Specifically, the outlet of the liquid discharge pipeline 5 can be corresponding to the center of the first opening 13, so that the liquid can be uniformly spread after being discharged into the accommodating cavity. As an alternative embodiment, the outlet of the liquid discharge line 5 can be extended into the receiving cavity, reducing the discharge height. In a preferred embodiment, the liquid discharge pipe 5 is covered with a pipe layer 51, and the pipe layer 51 cools the liquid discharge pipe 5 to maintain the liquid in the liquid discharge pipe 5 in a liquid state, thereby keeping the pipe smooth.
In one embodiment, as shown in fig. 1, the cryogenic liquid processing apparatus further includes a gas concentration sensor 6, and the gas concentration sensor 6 is disposed in the space surrounded by the protective body 41 and suspended at a desired distance from the first opening 13. The gas concentration sensor 6 is used for detecting the volatile gas on site, and when the concentration of the volatile gas reaches a safe concentration value, the volatile gas can enter the site for investigation and device maintenance.
Example 2
The present embodiment provides a method for constructing a low temperature liquid treatment apparatus according to embodiment 1, including the steps of:
s1, excavating the ground at the selected position, forming an accommodating cavity for accommodating liquid below the ground, and a first opening 13 for communicating the accommodating cavity with the outside, to obtain an accommodating structure 1;
specifically, the position far away from the building crowd is selected, the size and the depth of the containing inner cavity required by the local wind speed design are combined, the position with low preferred wind speed and low gas transverse volatility is excavated, a pit located underground is obtained and serves as the containing structure 1, the inner cavity of the pit serves as the containing inner cavity, and the opening in the top of the pit serves as the first opening 13.
S2, pouring a reinforcing material on the inner wall surface of the accommodating structure 1 to form a reinforcing structure 2;
specifically, a concrete material is poured on the inner wall surface of the pit to form a concrete layer, and the concrete layer is used as the reinforcing structure 2. In a preferred embodiment, a concrete material is mixed with a steel reinforcement material, and a steel reinforcement concrete layer is formed by casting the steel reinforcement material as the reinforcing structure 2.
S3, paving a heat conduction material on the reinforced structure 2 corresponding to the bottom wall surface 12 of the accommodating structure 1 to form a heat conduction structure 3;
specifically, a layer of cobble material is laid on the concrete layer on the bottom wall 12 of the pit as the heat conducting structure 3.
And S4, building a protective body 41 extending away from the accommodating structure 1 on the periphery of the first opening 13 to form a protective structure 4.
Specifically, a retaining wall extending in the pit-away direction is built on the periphery of the first opening 13, and the retaining wall height and area are designed according to the volume of the pit excavated in step S1 and the area of the first opening 13. Further, a second opening 42 for facilitating later exploration may be provided between the retaining walls.
S5, setting up a liquid discharge pipeline 5 above the containing structure 1, wherein an outlet of the liquid discharge pipeline 5 is arranged corresponding to the first opening 13 of the containing structure 1. Specifically, the size of the liquid discharge pipeline 5 is designed according to the volume of the waste liquid propellant, so that the flow rate can meet the safety limit of the flow rate in the pipeline when the liquid propellant flows in the discharge pipeline. Further, the outlet of the liquid discharge line 5 is disposed corresponding to the center of the first opening 13. The outer side of the discharge pipeline is coated with a pipeline layer 51; the liquid discharge pipeline 5 is pre-cooled by the pipeline layer 51, so that the pipeline discharge is kept smooth.
And S6, arranging a gas concentration sensor 6 in the space surrounded by the protective structure 4 and at a required height from the first opening 13, recording the emission data of the gas concentration by using the gas concentration sensor 6, and determining when the gas concentration value can enter the field inspection according to whether the gas concentration value meets the requirement of a safety limit value after the emission is finished. And observing whether the structure of the device is damaged or not, and preparing for next discharge.
It should be understood that the above examples are only for clarity of illustration and are not intended to limit the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. And obvious variations or modifications therefrom are within the scope of the invention.
Claims (10)
1. A cryogenic liquid treatment plant, comprising:
the liquid storage device comprises a containing structure (1) and a liquid storage device, wherein the containing structure comprises a containing inner cavity formed below the ground and used for containing liquid, and a first opening (13) for communicating the containing inner cavity with the outside;
the reinforcing structure (2) is arranged on the inner wall surface of the accommodating structure (1) and is used for reinforcing the accommodating inner cavity;
the protective structure (4) is arranged at the periphery of the first opening (13) and is provided with a protective body (41) extending along the direction far away from the accommodating structure (1);
the heat conduction structure (3) is located above the bottom wall surface (12) of the containing structure (1), and the reinforcing structure (2) is arranged between the heat conduction structure (3) and the containing structure (1).
2. Cryogenic liquid treatment device according to claim 1, wherein the containment structure (1) has a vertical wall (11) below ground level and a bottom wall (12) connecting the vertical wall (11), the vertical wall (11) and the bottom wall (12) enclosing the containment chamber, the top of the containment structure (1) forming the first opening (13);
preferably, the lateral interface of the containing structure (1) is rectangular or circular.
3. Cryogenic liquid treatment device according to claim 1 or 2, characterized in that the reinforcement structure (2) is a concrete layer covering the vertical wall (11) and the bottom wall (12) of the containment structure (1).
4. A cryogenic liquid treatment device according to any of claims 1-3, wherein the heat conducting structure (3) is a layer of cobblestones laid on the strengthening structure (2).
5. Cryogenic liquid treatment device according to any of claims 1 to 4, wherein the shielding body (41) is a retaining wall arranged at the periphery of the first opening (13) of the containment structure (1);
preferably, the shield body (41) comprises at least two retaining walls arranged around the first opening (13), wherein a second opening (42) is provided between at least one retaining wall and the adjacent retaining wall with a desired gap.
6. The cryogenic liquid treatment plant of any one of claims 1 to 5 further comprising: the gas concentration sensor (6) is positioned in a space surrounded by the protection structure (4), and is arranged at a required height away from the first opening (13).
7. The cryogenic liquid treatment plant of any one of claims 1 to 6 further comprising: and an outlet of the liquid discharge pipeline (5) corresponds to the first opening (13) of the accommodating structure (1), so that the liquid in the liquid discharge pipeline (5) flows into the accommodating inner cavity.
8. Cryogenic liquid treatment device according to claim 7, characterized in that the outside of the liquid discharge line (5) is coated with a line layer (51), the line layer (51) refrigerating the liquid discharge line (5).
9. A method of constructing a cryogenic liquid treatment plant according to any one of claims 1 to 8, comprising the steps of:
s1, excavating the ground at the selected position, forming an accommodating inner cavity for accommodating liquid below the ground and a first opening (13) for communicating the accommodating inner cavity with the outside to obtain an accommodating structure (1);
s2, pouring a reinforcing material on the inner wall surface of the accommodating structure (1) to form a reinforcing structure (2);
s3, paving a heat conduction material on the reinforcing structure (2) corresponding to the bottom wall surface (12) of the accommodating structure (1) to form a heat conduction structure (3);
and S4, building a protective body (41) extending along the direction far away from the accommodating structure (1) on the periphery of the first opening (13) to form a protective structure (4).
10. The construction method according to claim 9, further comprising:
s5, erecting a liquid discharge pipeline (5) above the accommodating structure (1), wherein an outlet of the liquid discharge pipeline (5) is arranged corresponding to the first opening (13) of the accommodating structure (1), and a pipeline layer (51) is coated on the outer side of the discharge pipeline;
and S6, arranging a gas concentration sensor (6) in the space surrounded by the protective structure (4) and at a required height from the first opening (13).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010205193.XA CN111238162B (en) | 2020-03-20 | 2020-03-20 | Low-temperature liquid treatment device and construction method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010205193.XA CN111238162B (en) | 2020-03-20 | 2020-03-20 | Low-temperature liquid treatment device and construction method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111238162A true CN111238162A (en) | 2020-06-05 |
| CN111238162B CN111238162B (en) | 2024-08-20 |
Family
ID=70865329
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010205193.XA Active CN111238162B (en) | 2020-03-20 | 2020-03-20 | Low-temperature liquid treatment device and construction method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111238162B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112012475A (en) * | 2020-07-31 | 2020-12-01 | 唐山华纤无机纤维研究院有限公司 | Non-dismantling formwork for building and manufacturing method |
| CN115012445A (en) * | 2022-01-18 | 2022-09-06 | 铜陵有色金属集团股份有限公司 | pit |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2006143349A (en) * | 2006-12-08 | 2008-06-20 | Открытое акционерное общество "НПО Энергомаш имени академика В.П. Глушко" (RU) | STAND FOR TESTING LIQUID ROCKET ENGINES |
| CN203375786U (en) * | 2013-06-10 | 2014-01-01 | 鞍钢股份有限公司 | Cold volume recovery system of cryogenic liquids |
| CN106284590A (en) * | 2016-10-10 | 2017-01-04 | 北京京诚泽宇能源环保工程技术有限公司 | A kind of ice-bound formula gully for cryogenic liquid cofferdam |
| CN108568126A (en) * | 2018-05-10 | 2018-09-25 | 中石化宁波工程有限公司 | A kind of low temperature residual liquid processing apparatus |
| CN109091897A (en) * | 2018-09-12 | 2018-12-28 | 江苏师范大学 | A kind of low temperature concentration basin |
| CN109610597A (en) * | 2018-11-30 | 2019-04-12 | 乔治洛德方法研究和开发液化空气有限公司 | It is a kind of for preventing the trapped well system of cryogenic liquid leakage |
| CN111803979A (en) * | 2020-09-07 | 2020-10-23 | 北京航天试验技术研究所 | Low-temperature propellant discharge treatment device |
| CN211926297U (en) * | 2020-03-20 | 2020-11-13 | 北京航天试验技术研究所 | Low-temperature liquid treatment device |
| CN113461238A (en) * | 2021-07-05 | 2021-10-01 | 上海融擎流体科技有限公司 | Treatment method and treatment equipment for rocket unsymmetrical dimethylhydrazine propellant wastewater |
| CN214792181U (en) * | 2021-05-27 | 2021-11-19 | 中冶华天南京工程技术有限公司 | Liquid oxygen, liquid nitrogen, liquid argon low temperature flowing back centralized discharge system |
-
2020
- 2020-03-20 CN CN202010205193.XA patent/CN111238162B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2006143349A (en) * | 2006-12-08 | 2008-06-20 | Открытое акционерное общество "НПО Энергомаш имени академика В.П. Глушко" (RU) | STAND FOR TESTING LIQUID ROCKET ENGINES |
| CN203375786U (en) * | 2013-06-10 | 2014-01-01 | 鞍钢股份有限公司 | Cold volume recovery system of cryogenic liquids |
| CN106284590A (en) * | 2016-10-10 | 2017-01-04 | 北京京诚泽宇能源环保工程技术有限公司 | A kind of ice-bound formula gully for cryogenic liquid cofferdam |
| CN108568126A (en) * | 2018-05-10 | 2018-09-25 | 中石化宁波工程有限公司 | A kind of low temperature residual liquid processing apparatus |
| CN109091897A (en) * | 2018-09-12 | 2018-12-28 | 江苏师范大学 | A kind of low temperature concentration basin |
| CN109610597A (en) * | 2018-11-30 | 2019-04-12 | 乔治洛德方法研究和开发液化空气有限公司 | It is a kind of for preventing the trapped well system of cryogenic liquid leakage |
| CN211926297U (en) * | 2020-03-20 | 2020-11-13 | 北京航天试验技术研究所 | Low-temperature liquid treatment device |
| CN111803979A (en) * | 2020-09-07 | 2020-10-23 | 北京航天试验技术研究所 | Low-temperature propellant discharge treatment device |
| CN214792181U (en) * | 2021-05-27 | 2021-11-19 | 中冶华天南京工程技术有限公司 | Liquid oxygen, liquid nitrogen, liquid argon low temperature flowing back centralized discharge system |
| CN113461238A (en) * | 2021-07-05 | 2021-10-01 | 上海融擎流体科技有限公司 | Treatment method and treatment equipment for rocket unsymmetrical dimethylhydrazine propellant wastewater |
Non-Patent Citations (2)
| Title |
|---|
| 罗跃辉;王菊香;刘洁;翁璐;: "化学法处理大批量导弹液体推进剂废液废水", 海军航空工程学院学报, no. 05 * |
| 蒋旭;: "空分装置的冷脆保护分析与研究", 气体分离, no. 06, 25 December 2019 (2019-12-25) * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112012475A (en) * | 2020-07-31 | 2020-12-01 | 唐山华纤无机纤维研究院有限公司 | Non-dismantling formwork for building and manufacturing method |
| CN115012445A (en) * | 2022-01-18 | 2022-09-06 | 铜陵有色金属集团股份有限公司 | pit |
Also Published As
| Publication number | Publication date |
|---|---|
| CN111238162B (en) | 2024-08-20 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US11342091B2 (en) | Systems and methods for storing spent nuclear fuel | |
| Fischer | The severe accident mitigation concept and the design measures for core melt retention of the European Pressurized Reactor (EPR) | |
| Yanez et al. | An analysis of the hydrogen explosion in the Fukushima-Daiichi accident | |
| Kudriakov et al. | Full-scale tunnel experiments: Blast wave and fireball evolution following hydrogen tank rupture | |
| US7590213B1 (en) | Systems and methods for storing spent nuclear fuel having protection design | |
| CN111238162A (en) | Low-temperature liquid treatment device and construction method thereof | |
| Wu et al. | Experimental study on burning characteristics of the large-scale transformer oil pool fire with different extinguishing methods | |
| CN211926297U (en) | Low-temperature liquid treatment device | |
| Chen et al. | The technology of suppression containment for the SMR in floating nuclear power plants against hydrogen risk | |
| US20050220256A1 (en) | Systems and methods for storing spent nuclear fuel having a low heat load | |
| Sherman | Hydrogen combustion in nuclear plant accidents and associated containment loads | |
| KR20150039764A (en) | Contained flare system for post loss-of-coolant accident mitigation | |
| EP2075799B1 (en) | Systems and methods for storing high level radioactive waste | |
| Morones | Flammable hazards of BESS failures | |
| Cetinyokus | Determination of possible industrial accident effects on a hydrogen storage tank in a fuel cell production facility | |
| Sich | Chernobyl accident management actions | |
| JPH10282284A (en) | Nuclear power facilities | |
| Bauwens et al. | Quantifying the potential consequences of a detonation in a hydrogen jet release | |
| Fernández Cosials | Analysis and improvement of hydrogen mitigation strategies during a severe accident in nuclear containments | |
| CN111803979B (en) | Low-temperature propellant discharge treatment device | |
| Hamdani et al. | Non-condensable gas accumulation and distribution due to condensation in the CIGMA facility: Implications for Fukushima Daiichi Unit 3 (1F3) | |
| CN110753660B (en) | A flame arrester for the safe use of hydrogen as lift gas in airships | |
| Chen et al. | Safety analysis of hydrogen explosion accident in high level waste tank | |
| JPH05164892A (en) | Combustible gas control system for nuclear reactor | |
| Söderholm | Fire Safety in Hydrogen Processing Facilities-Design Considerations |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |