CN116618203B - Adjustable ejector - Google Patents
Adjustable ejectorInfo
- Publication number
- CN116618203B CN116618203B CN202310481136.8A CN202310481136A CN116618203B CN 116618203 B CN116618203 B CN 116618203B CN 202310481136 A CN202310481136 A CN 202310481136A CN 116618203 B CN116618203 B CN 116618203B
- Authority
- CN
- China
- Prior art keywords
- nozzle
- wall
- packing
- adjusting rod
- actuator
- 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.)
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Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B7/00—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas
- B05B7/02—Spray pistols; Apparatus for discharge
- B05B7/04—Spray pistols; Apparatus for discharge with arrangements for mixing liquids or other fluent materials before discharge
Landscapes
- Jet Pumps And Other Pumps (AREA)
Abstract
本发明公开了一种新型可调喷射器，涉及喷射器的技术领域，包括旋转杆、执行机构连接部分、调节杆、喷嘴、一次流进口、二次流进口、填料压盖、填料本体、填料垫片、块状结构和O型圈，所述喷嘴一端与执行机构一端连接，所述执行机构另一端设有旋转杆，所述执行机构一端内部设有填料垫片，所述填料垫片一侧设有填料本体，所述填料本体另一端设有填料压盖，优化了密封的方式以及调节探针的结构，在调节杆上增加一个块状结构，在对喷射器流量调节的过程中，将块状结构与流体通道之间的面密封代替以往结构中调节装置与喉部或喉部壁面的线密封，并在密封面处增加O型圈，使其密封接触面积更大，密封更牢靠。
This invention discloses a novel adjustable injector, relating to the technical field of injectors. It includes a rotating rod, an actuator connection part, an adjusting rod, a nozzle, a primary flow inlet, a secondary flow inlet, a packing gland, a packing body, a packing gasket, a block structure, and an O-ring. One end of the nozzle is connected to one end of the actuator, and the other end of the actuator is equipped with a rotating rod. A packing gasket is located inside one end of the actuator, and a packing body is located on one side of the packing gasket. A packing gland is located at the other end of the packing body. The invention optimizes the sealing method and the structure of the adjusting probe by adding a block structure to the adjusting rod. During injector flow adjustment, the surface seal between the block structure and the fluid channel replaces the line seal between the adjusting device and the throat or throat wall in previous structures. An O-ring is added to the sealing surface, resulting in a larger sealing contact area and a more reliable seal.
Description
Technical Field
The invention relates to the technical field of ejectors, in particular to an adjustable ejector.
Background
The ejector has the advantages of better energy-saving effect, simple structure, lower manufacturing cost and the like, has no strict limit on the sucked medium, and is widely applied to the fields of exhaust steam recovery, sea water desalination, water conservancy, chemical industry, petroleum, aviation and the like, in particular to a heat pump evaporation system and a steam jet refrigeration system. Whether it is a heat pump evaporation system or an ejector refrigeration system, and an ejector-compression refrigeration system, ejectors are an important component part thereof, and whether the performance of the ejectors is good or bad plays a key role in the whole system. The main body of the steam jet type heat pump evaporation system consists of an evaporator and an ejector. The low-pressure secondary steam generated in the evaporator is pressurized by the ejector and then enters the evaporator as heating steam, and finally is condensed and discharged. The technology can effectively utilize the waste heat of the secondary steam generated in the evaporation process, thereby playing a role in energy conservation, and therefore, the technology has considerable energy conservation benefit in the evaporation industry.
In industry, many production fields are not separated from the use of steam, such as chemical industry, petroleum, sea water desalination, thermal power generation and the like. The low-pressure steam with low enthalpy and low pressure is inevitably generated in the process of using steam, so that the investment is large to recycle and the economical efficiency is poor, and the prior method is to directly empty, thereby not only causing the waste of energy sources, but also indirectly polluting the environment. Energy conservation, emission reduction and environmental protection are necessary choices for building a resource-saving and environment-friendly society. And by utilizing the steam ejector, the part of low-pressure steam can be pumped by utilizing high-pressure steam, so that the low-pressure steam can be continuously utilized after being pressurized, the energy is recovered, and the waste is reduced.
The conventional injector has several advantages and some disadvantages. Currently, most injectors used in industry are designed with a fixed structure, and can only maintain high performance under fixed design operating conditions, and if the operating conditions deviate from the initial design parameters, the injection performance is rapidly reduced, even losing the working capacity. In industrial production, steam pressure fluctuation is inevitably caused due to various uncontrollable factors such as leakage and blockage of a boiler and a steam pipeline, and the performance of a traditional ejector is seriously deteriorated when the pressure fluctuation occurs, so that in order to enable the ejector to keep high-efficiency and stable operation under the condition of fluctuation of working conditions, the adjustable ejector is studied intensively. The principle is that the equivalent diameter of the throat part and the outlet of the nozzle is changed by adjusting the linearity of the needle in the nozzle, so that the important structural parameter-area ratio affecting the performance of the injector is changed, and the performance of the injector is adjusted.
However, currently, the sealing at the throat of the nozzle of an adjustable injector is basically sealed by means of the line contact between the adjusting needle and the throat wall, and the tightness is unreliable. In addition, the structural form of the adjusting probe is not reasonable enough, and the change of the area ratio is not linear along with the movement of the adjusting rod, so that the adjusting precision in the adjusting process is insufficient, and the adjusting probe becomes an obstacle factor for industrial application.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides an adjustable ejector, which solves the problems in the background technology.
The adjustable ejector comprises a rotating rod, an actuating mechanism connecting part, an adjusting rod, a nozzle, a primary flow inlet, a secondary flow inlet, a packing gland, a packing body, a packing gasket, a block structure and an O-shaped sealing ring, wherein one end of the nozzle is connected with one end of the actuating mechanism, the other end of the actuating mechanism is provided with the rotating rod, the packing gasket is arranged inside one end of the actuating mechanism, one side of the packing gasket is provided with the packing body, the other end of the packing body is provided with the packing gland, the adjusting rod is inserted inside the packing body, one end of the adjusting rod is arranged inside one end of the rotating rod, the other end of the adjusting rod is provided with the block structure, the block structure is arranged inside the nozzle, the O-shaped sealing ring is arranged between the block structure and the inner wall of the nozzle, the O-shaped sealing ring is embedded on the surface of the block structure, the O-shaped sealing ring is tightly attached to one end of a cavity inside the nozzle, the primary flow inlet is arranged at the top of the nozzle, the secondary flow inlet is arranged at the bottom of the nozzle, and the primary flow inlet is communicated with the interior of the second flow inlet.
Preferably, the inside hollow structure that is of nozzle one end, the inside circular hole groove of seting up of nozzle, and circular hole groove runs through nozzle one end, the inside circular hole groove that passes through of nozzle communicates with outside, and there is the clearance between circular hole groove inner wall and the regulation pole outer wall.
Preferably, the section of one end of the adjusting rod is of a T-shaped structure, one end of the adjusting rod is tightly attached to one end of the rotating rod, the adjusting rod is connected with one end of the rotating rod in an inner rotating mode, the other end of the adjusting rod is of a conical structure, and a gap exists between the conical structure of one end of the adjusting rod and the inner wall of the nozzle.
Preferably, the outside of nozzle one end is equipped with the mixing chamber, mixing chamber and nozzle one end all are equipped with the flange limit, the inside cavity form structure that is of mixing chamber, and the inside intercommunication each other in mixing chamber both ends, the mixing chamber both ends are loudspeaker form structure.
Preferably, the outer wall of the actuating mechanism is of a barrel-shaped structure, the inner surface of the actuating mechanism is smooth, and the inside of the actuating mechanism is of a hollow structure.
Preferably, the surface of the opening at one end of the rotating rod is provided with a groove, one end of the groove is arranged in an open mode, the inner wall of the groove is provided with a smooth surface, the section of the groove is of a T-shaped structure, and the outer part of the other end of the rotating rod is sleeved with a square block-shaped structure.
Preferably, the outer wall of the rotating rod is rotationally connected with the inner wall of one end of the nozzle, the outer wall of the rotating rod is tightly attached to the nozzle, the outer wall of the rotating rod is provided with a convex structure, and the convex structure of the outer wall of the rotating rod is matched with the inner part of one end of the nozzle.
Preferably, one end of the inner wall of the nozzle is open, one end of the inner wall of the nozzle is provided with a groove-shaped structure, and the groove-shaped structure of the inner wall of one end of the nozzle is rotationally connected with one end of the actuating mechanism.
Preferably, the outer wall of the packing gland is in a threaded shape, the packing gland is rotationally connected with the inner wall of the actuating mechanism, one end of the packing gland is tightly attached to the packing body, the packing body is sleeved outside the adjusting rod, and the outer wall of the adjusting rod is tightly attached to the packing body.
The invention provides an adjustable ejector. The beneficial effects are as follows:
According to the adjustable ejector, through the mutual combination of all the components, the sealing mode and the structure of the adjusting probe are optimized, a block structure is added on the adjusting rod, in the flow adjusting process of the ejector, the surface seal between the block structure and the fluid channel replaces the line seal between the adjusting device and the throat or the throat wall in the conventional structure, and an O-shaped sealing ring is added at the sealing surface, so that the sealing contact area is larger, and the sealing is firmer. The designed adjusting probe is linearly changed along with equidistant movement of the probe, and the mixing chamber area and the nozzle throat area ratio (AR 1) and the nozzle outlet area and the nozzle throat area ratio (AR 2) can be adjusted to a proper position according to actual working conditions to meet the requirements.
Drawings
FIG. 1 is a schematic diagram of the overall structure of the present invention;
FIG. 2 is a schematic cross-sectional view of the present invention;
FIG. 3 is a schematic view of a rotary rod according to the present invention;
FIG. 4 is a schematic view of a nozzle structure according to the present invention;
FIG. 5 is a schematic diagram of an actuator structure according to the present invention;
FIG. 6 is a schematic cross-sectional view of an implementation structure of the present invention;
FIG. 7 shows the present invention a schematic structure of the adjusting rod;
FIG. 8 is a schematic cross-sectional view of an adjusting lever according to the present invention.
In the figure, 1, a rotating rod, 2, an actuating mechanism, 3, an adjusting rod, 4, a nozzle, 5, a primary flow inlet, 6, a secondary flow inlet, 7, a packing gland, 8, a packing body, 9, a packing gasket, 10, a block structure, 11, an O-shaped sealing ring and 12, and a mixing chamber.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Referring to fig. 1-8, the embodiment of the invention provides a technical scheme: an adjustable ejector comprises a rotary rod 1, an actuating mechanism connecting part 2, an adjusting rod 3, a nozzle 4, a primary flow inlet 5, a secondary flow inlet 6, a packing gland 7, a packing body 8, a packing gasket 9, a block structure 10 and an O-shaped sealing ring 11, wherein one end of the nozzle 4 is connected with one end of the actuating mechanism 2, the other end of the actuating mechanism 2 is provided with the rotary rod 1, the packing gasket 9 is arranged in one end of the actuating mechanism 2, one side of the packing gasket 9 is provided with the packing body 8, the other end of the packing body 8 is provided with the packing gland 7, the inside of the packing body 8 is penetrated with the adjusting rod 3, one end of the adjusting rod 3 is arranged in one end of the rotary rod 1, the other end of the adjusting rod 3 is provided with the block structure 10, the block structure 10 is arranged in the nozzle 4, an O-shaped sealing ring 11 is arranged between the block structure 10 and the inner wall of the nozzle 4, the O-shaped sealing ring 11 is embedded on the surface of the block structure 10, the O-shaped sealing ring 11 is tightly attached to one end of the inner cavity of the nozzle 4, a primary flow inlet 5 is arranged at the top of the nozzle 4, a secondary flow inlet 6 is arranged at the bottom of the nozzle 4, the primary flow inlet 5 is communicated with the interior of the nozzle 4 and the secondary flow inlet 6, when a probe enters a narrower channel, the structure of the probe changes the effective area of fluid when passing through the pipeline, thereby changing the area ratio (AR 1) of the mixing chamber 12 to the throat area of the nozzle and the area ratio (AR 2) of the outlet area of the nozzle 4 to the throat area of the nozzle, achieving the effect of regulating and controlling working conditions, and enabling the ejector to achieve the optimal performance by moving an adjusting rod 3 to reach the optimal position, the block-shaped structure 10 is contacted with the wall surface of the fluid pipeline to form surface contact, and the O-shaped sealing ring 11 is placed in the middle, so that the sealing effect is achieved.
The inside hollow structure that is of nozzle 4 one end, the inside circular hole groove of seting up of nozzle 4, and circular hole groove runs through nozzle 4 one end, the inside circular hole groove and the outside intercommunication that passes through of nozzle 4, and there is the clearance between circular hole groove inner wall and the regulation pole 3 outer wall.
The cross-section of 3 one ends of adjusting the pole is T shape structure, and adjusts 3 one ends of pole and closely laminate with rotary rod 1 one end, adjust pole 3 and the inside rotation of rotary rod 1 one end and be connected, it is toper column structure to adjust 3 other ends, it is clearance to have between 3 one end toper structures of adjusting the pole and the nozzle 4 inner wall, when toper structure probe gets into narrower fluid passage, the effective area when toper structure probe will change the fluid and pass through the pipeline to change mixing chamber 12 area and nozzle throat area ratio (AR 1) and nozzle 4 exit area and nozzle throat area ratio (AR 2), reach the effect of regulation and control operating mode.
The outside mixing chamber 12 that is equipped with of nozzle 4 one end, mixing chamber 12 and nozzle 4 one end all are equipped with the flange limit, mixing chamber 12 inside is hollow form structure, and mixing chamber 12 both ends inside intercommunication each other, mixing chamber 12 both ends are loudspeaker form structure, thereby are favorable to making to close diffusion chamber 12 and nozzle 4 one end and can be convenient for carry out sealing connection through the bolt through the flange limit.
The outer wall of the actuating mechanism 2 is of a barrel-shaped structure, the inner surface of the actuating mechanism 2 is smooth, and the inside of the actuating mechanism 2 is of a hollow structure.
The rotary rod 1 one end open surface open have the recess, and recess one end is open form setting, and the recess inner wall is smooth form surface, the recess cross-section is T shape structure, the outside cover of rotary rod 1 other end is equipped with square block column structure.
The outer wall of the rotary rod 1 is rotationally connected with the inner wall of one end of the nozzle 4, the outer wall of the rotary rod 1 is tightly attached to the nozzle 4, the outer wall of the rotary rod 1 is provided with a protruding structure, and the protruding structure of the outer wall of the rotary rod 1 is matched with the inner part of one end of the nozzle 4.
One end of the inner wall of the nozzle 4 is open, one end of the inner wall of the nozzle 4 is provided with a groove-shaped structure, and the groove-shaped structure of the inner wall of one end of the nozzle 4 is rotationally connected with one end of the actuating mechanism 2.
The packing gland 7 outer wall is the screw thread form setting, packing gland 7 rotates with actuating mechanism 2 inner wall to be connected, packing gland 7 one end is closely laminated with packing body 8, packing body 8 suit is outside in adjusting pole 3, closely laminate between adjusting pole 3 outer wall and the packing body 8, through rotating packing gland 7 to make packing gland 7 can extrude packing body 8, and then be favorable to making packing body 8 can extrude adjusting pole 3, thereby keep sealed.
The working principle is that when the probe enters a narrower fluid channel, the structure of the probe changes the effective area of the fluid passing through the pipeline, so that the area ratio (AR 1) of the mixing chamber 12 to the throat area of the nozzle and the area ratio (AR 2) of the outlet area of the nozzle 4 to the throat area of the nozzle are changed, the effect of regulating working conditions is achieved, the optimal position can be reached by moving the regulating rod 3 so as to achieve the optimal performance of the injector, and the optimal position can be reached by moving the regulating rod 3 so as to achieve the optimal performance of the injector. When the primary fluid is required to be cut off, the regulating rod 3 is continuously moved forwards along the axial direction, the block-shaped structure 10 is contacted with the wall surface of the fluid pipeline to form surface contact, and the O-shaped sealing ring 11 is placed in the middle, so that the sealing effect is achieved.
The invention relates to a rotary rod, an actuating mechanism, an adjusting rod, a nozzle, a primary flow inlet, a secondary flow inlet, a packing gland, a packing body, a packing gasket, a block structure, an O-shaped sealing ring, a mixing chamber and a mixing chamber, wherein the components are all universal standard components or components known to a person skilled in the art, and the structures and principles of the components are all known by the person skilled in the art through technical manuals or through routine experimental methods.
While the fundamental and principal features of the invention and advantages of the invention have been shown and described, it will be apparent to those skilled in the art that the invention is not limited to the details of the foregoing exemplary embodiments, but may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present disclosure describes embodiments, not every embodiment is provided with a separate embodiment, and that this description is provided for clarity only, and that the disclosure is not limited to the embodiments described in detail below, and that the embodiments described in the examples may be combined as appropriate to form other embodiments that will be apparent to those skilled in the art.
Claims (8)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310481136.8A CN116618203B (en) | 2023-04-28 | 2023-04-28 | Adjustable ejector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310481136.8A CN116618203B (en) | 2023-04-28 | 2023-04-28 | Adjustable ejector |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN116618203A CN116618203A (en) | 2023-08-22 |
| CN116618203B true CN116618203B (en) | 2026-01-23 |
Family
ID=87590430
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310481136.8A Active CN116618203B (en) | 2023-04-28 | 2023-04-28 | Adjustable ejector |
Country Status (1)
| Country | Link |
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| CN (1) | CN116618203B (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106938224A (en) * | 2017-03-06 | 2017-07-11 | 西南科技大学 | A kind of variable area based on electric expansion valve compares injector |
| CN109312962A (en) * | 2016-06-16 | 2019-02-05 | 株式会社电装 | Refrigeration cycle device |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102004003489B3 (en) * | 2004-01-23 | 2005-06-23 | Sig Technology Ltd. | Filling valve for food product container filling machine with piston blade cooperating with counter-blade around outside of discharge opening |
| JP2006233807A (en) * | 2005-02-23 | 2006-09-07 | Denso Corp | Ejector |
| CN201819486U (en) * | 2010-04-26 | 2011-05-04 | 珠海格力电器股份有限公司 | Adjustable ejector and heat pump air conditioner system adopting same |
| CN202490710U (en) * | 2011-12-31 | 2012-10-17 | 中能东讯新能源科技(大连)有限公司 | In-Line Adjustable Injector |
| CN111692770B (en) * | 2019-03-15 | 2023-12-19 | 开利公司 | Ejector and refrigeration system |
| CN112827688B (en) * | 2021-01-08 | 2021-11-23 | 清华大学 | Ejector for cooling valve core needle by using cooling working medium |
| CN114160325B (en) * | 2021-10-28 | 2022-10-04 | 山东大学 | An injector that adapts to changing working conditions |
| CN115163580B (en) * | 2022-07-03 | 2024-05-17 | 中国船舶重工集团公司第七0三研究所 | Variable performance vapor injection compressor |
-
2023
- 2023-04-28 CN CN202310481136.8A patent/CN116618203B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109312962A (en) * | 2016-06-16 | 2019-02-05 | 株式会社电装 | Refrigeration cycle device |
| CN106938224A (en) * | 2017-03-06 | 2017-07-11 | 西南科技大学 | A kind of variable area based on electric expansion valve compares injector |
Also Published As
| Publication number | Publication date |
|---|---|
| CN116618203A (en) | 2023-08-22 |
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