CN201568728U - Cryogenic liquid storage tank gas-liquid supply device - Google Patents
Cryogenic liquid storage tank gas-liquid supply device Download PDFInfo
- Publication number
- CN201568728U CN201568728U CN2009202940317U CN200920294031U CN201568728U CN 201568728 U CN201568728 U CN 201568728U CN 2009202940317 U CN2009202940317 U CN 2009202940317U CN 200920294031 U CN200920294031 U CN 200920294031U CN 201568728 U CN201568728 U CN 201568728U
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- China
- Prior art keywords
- liquid
- tank body
- valve
- discharging tube
- discharging
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- 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.)
- Expired - Fee Related
Links
- 239000007788 liquid Substances 0.000 title claims abstract description 39
- 238000003860 storage Methods 0.000 title claims abstract description 13
- 238000007599 discharging Methods 0.000 claims abstract description 36
- 230000008676 import Effects 0.000 claims description 2
- 239000002699 waste material Substances 0.000 abstract description 5
- 230000001105 regulatory effect Effects 0.000 abstract 1
- 239000007789 gas Substances 0.000 description 12
- 210000004907 gland Anatomy 0.000 description 4
- 238000007789 sealing Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 2
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 2
- 238000005336 cracking Methods 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- MYMOFIZGZYHOMD-UHFFFAOYSA-N Dioxygen Chemical compound O=O MYMOFIZGZYHOMD-UHFFFAOYSA-N 0.000 description 1
- 229910052786 argon Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 229910002092 carbon dioxide Inorganic materials 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 230000009191 jumping Effects 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
Images
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- Filling Or Discharging Of Gas Storage Vessels (AREA)
Abstract
The utility model discloses a gas-liquid supply device of a cryogenic liquid storage tank comprising a tank body (1), a liquid-discharging tube (2), a first liquid-discharging valve (3) and a second liquid-discharging valve (4), wherein the liquid-feeding end of the liquid-discharging tube (2) penetrates through a liquid-discharging outlet on the top of the tank body (1) and extends into the bottom of an inner cavity of the tank body (1); the first liquid-discharging valve (3) and the second liquid-discharging valve (4) are sequentially connected in series on the liquid-discharging tube (2) along the flowing direction of the liquid; an exhaust port is also cut on the top of the tank body (1); one end of an exhaust pipe (5) is connected with the exhaust port, and the other end thereof is connected with a depressurization regulating valve (6) in series and then is connected with the liquid-discharging tube (2) between the first liquid-discharging valve (3) and the liquid-discharging outlet of the tank body. The gas-liquid supply device can realize the circulation of liquid supply and gas supply so as to effectively avoid gas waste caused by exhausting through safety valves. The gas-liquid supply device has the characteristics of reasonable design, simple structure, easy application and high generality and the like.
Description
Technical field
The utility model relates to a kind of cryogenic liquide storage tank, particularly the air feed liquid device of cryogenic liquide storage tank.
Background technique
The cryogenic liquide storage tank is a kind of jacketed type vacuum-powders insulation pressurized container of storing and supplying liquefied gas at low temp (as liquid nitrogen, liquid oxygen, liquid argon, liquid carbon dioxide etc.) that is specifically designed to.In industrial production and daily life, be widely used.The cryogenic liquide storage tank is general earlier to the heater feed flow, outwards carries after by heater liquid being changed into gas again.At present, the feed liquid way of cryogenic liquide storage tank as shown in Figure 2: be connected to liquid-discharging tube 2 in the bottom of tank body 1, be in series with first draining valve 3 on this liquid-discharging tube 2 and second draining valve, 4, the first draining valves 3 are the normally open valve door.By from the pressurization system (not shown), make tank body 1 be stabilized in a pressure value P 1, P1 is higher than user's working pressure value P; P1＞P.Under the normal condition, open second draining valve 4, to extraneous feed flow; User's consumption is less, and the pressure value P 1 of tank body 1 constantly increases, and reaches opening pressure of safety valve P2, safety valve jumping up, and exhausting air causes the gas waste to the outside.
The model utility content
Technical problem to be solved in the utility model is to provide a kind of cryogenic liquide storage tank air feed liquid device that can effectively avoid the gas waste.
The technical solution of the utility model is as follows: a kind of cryogenic liquide storage tank air feed liquid device, comprise tank body, liquid-discharging tube, first draining valve and second draining valve, its key is: the liquid feeding end of described liquid-discharging tube passes the liquid port at tank body top, and extend into the bottom of tank inner chamber, at the flow direction of liquid-discharging tube upper edge liquid connect successively first draining valve and second draining valve; Top at described tank body also has relief opening, and an end of this relief opening and outlet pipe joins, and behind the other end series connection reduction regulation valve of outlet pipe, is connected on the liquid-discharging tube between first draining valve and the tank body liquid port.
Adopt above technological scheme, first draining valve and second draining valve are the bottom draining valves, and first draining valve is the normally open valve door, and reduction regulation valve setting pressure is P3.By from pressurization system, make tank body be stabilized in a pressure value P 1, P1 is higher than user's working pressure value P; P1＞P.Generally speaking, open second draining valve, to extraneous feed flow; User's fluid volume is less, the pressure value P 1 of tank body constantly increases, constantly increase above P3 at P1, the reduction regulation valve is started working, and the gas in the tank body is by outlet pipe and reduction regulation valve, to the liquid formation sealing gland of first draining valve and the second draining valve pipeline, and by first draining valve and second draining valve and the outside air feed of liquid-discharging tube, to reduce the pressure of tank body, avoid reaching the cracking pressure P2 of safety valve, cause the gas waste.By using gases, with the pressure reduction of tank body, when the pressure of tank body was lower than P3, the reduction regulation valve cut out, and sealing gland disappears, by first draining valve and second draining valve and the outside feed flow of liquid-discharging tube.The above mode of circulation can constantly outside feed flow and air feed.
On the outlet pipe before the import of described reduction regulation valve first drain tap is housed, second drain tap is housed on the outlet pipe behind the reduction regulation valve outlet port.First drain tap and second drain tap are the normally open valve door, help keeping in repair pipeline.
In order to prevent that liquid from entering in the outlet pipe, the connecting part of described outlet pipe and liquid-discharging tube is positioned at the peak of liquid-discharging tube, in the pipeline and fluid-tight is set.
Beneficial effect: the utility model can circulate and realize feed flow and air feed, and the gas of effectively having avoided causing by the safety valve exhaust is wasted, and has reasonable in design, simple in structure, characteristics such as enforcement is easy, highly versatile.
Description of drawings
Fig. 1 is a structural representation of the present utility model.
Fig. 2 is the structural representation of background technique.
Embodiment
The utility model is described in further detail below in conjunction with drawings and Examples:
As shown in Figure 1, the utility model is made of tank body 1, liquid-discharging tube 2, first draining valve 3, second draining valve 4, outlet pipe 5, reduction regulation valve 6, first drain tap 7 and second drain tap 8.Have liquid port and relief opening at the top of tank body 1, the liquid feeding end of liquid-discharging tube 2 passes the liquid port at tank body 1 top, and extend into the bottom of tank body 1 inner chamber, and the liquid feeding end of liquid-discharging tube 2 is positioned at the below of tank body 1 liquid level.At connect successively first draining valve 3 and second draining valve, 4, the first draining valves 3 of the flow direction of liquid-discharging tube 2 upper edge liquid is the normally open valve door.The relief opening at the inlet end of outlet pipe 5 and tank body 1 top joins, the exhaust end of outlet pipe 5 is connected behind first drain tap 7, reduction regulation valve 6 and second drain tap 8 successively, be connected on the liquid-discharging tube 2 between first draining valve 3 and the tank body liquid port, and the connecting part of outlet pipe 5 and liquid-discharging tube 2 is positioned at the peak of liquid-discharging tube 2.Described first drain tap 7 and second drain tap 8 are the normally open valve door.
Working principle of the present utility model is as follows:
Reduction regulation valve 6 setting pressures are P3.By from pressurization system, make tank body 1 be stabilized in a pressure value P 1, P1 is higher than user's working pressure value P; P1＞P.Generally speaking, open second draining valve 4, to extraneous feed flow; User's fluid volume is less, the pressure value P 1 of tank body 1 constantly increases, constantly increase above P3 at P1, reduction regulation valve 6 is started working, gas in the tank body 1 is by outlet pipe 5, first drain tap 7, reduction regulation valve 6 and second drain tap 8, liquid to first draining valve 3 and second draining valve, 4 pipelines forms sealing gland, and by first draining valve 3 and second draining valve 4 and liquid-discharging tube 2 outside air feed, to reduce the pressure of tank body 1, avoid reaching the cracking pressure P2 of safety valve (not drawing among the figure), cause the gas waste.By using gases, with the pressure reduction of tank body 1, when the pressure of tank body 1 was lower than P3, reduction regulation valve 6 cut out, and sealing gland disappears, by first draining valve 3 and second draining valve 4 and liquid-discharging tube 2 outside feed flows.The above mode of circulation can constantly outside feed flow and air feed.
In the above air feed liquid process: P: user's working pressure; P1: tank body 1 normal pressure; P2: opening pressure of safety valve; P3: reduction regulation valve 6 setting pressures.Reduction regulation valve 6 entrance points are when pressure is lower than P3, and reduction regulation valve 6 is in closed condition at this moment; Reduction regulation valve 6 entrance points are when pressure is higher than P3, and reduction regulation valve 6 is opened at this moment, and gas is by reduction regulation valve 6, and outlet pressure is P3.Relation between four:
P1＜P1＜P3＜P2。
Claims (3)
1. cryogenic liquide storage tank air feed liquid device, comprise tank body (1), liquid-discharging tube (2), first draining valve (3) and second draining valve (4), it is characterized in that: the liquid feeding end of described liquid-discharging tube (2) passes the liquid port at tank body (1) top, and extend into the bottom of tank body (1) inner chamber, at the flow direction of liquid-discharging tube (2) upper edge liquid connect successively first draining valve (3) and second draining valve (4); Top at described tank body (1) also has relief opening, and an end of this relief opening and outlet pipe (5) joins, and behind the other end series connection reduction regulation valve (6) of outlet pipe (5), is connected on the liquid-discharging tube (2) between first draining valve (3) and the tank body liquid port.
2. cryogenic liquide storage tank air feed liquid device according to claim 1, it is characterized in that: on the outlet pipe (5) before described reduction regulation valve (6) import first drain tap (7) is housed, on the outlet pipe (5) after reduction regulation valve (6) outlet second drain tap (8) is housed.
3. cryogenic liquide storage tank air feed liquid device according to claim 1 and 2 is characterized in that: the connecting part of described outlet pipe (5) and liquid-discharging tube (2) is positioned at the peak of liquid-discharging tube (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202940317U CN201568728U (en) | 2009-12-21 | 2009-12-21 | Cryogenic liquid storage tank gas-liquid supply device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202940317U CN201568728U (en) | 2009-12-21 | 2009-12-21 | Cryogenic liquid storage tank gas-liquid supply device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201568728U true CN201568728U (en) | 2010-09-01 |
Family
ID=42661017
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009202940317U Expired - Fee Related CN201568728U (en) | 2009-12-21 | 2009-12-21 | Cryogenic liquid storage tank gas-liquid supply device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201568728U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102900949A (en) * | 2012-11-11 | 2013-01-30 | 薛宏卫 | Low-temperature liquid storage tank with constant-pressure device |
| CN105715946A (en) * | 2014-12-05 | 2016-06-29 | 天津航天瑞莱科技有限公司 | Air supply system and method for air source in noise test room |
| CN111075694A (en) * | 2019-12-04 | 2020-04-28 | 珠海格力电器股份有限公司 | Drainage system and drainage method for air storage tank |
-
2009
- 2009-12-21 CN CN2009202940317U patent/CN201568728U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102900949A (en) * | 2012-11-11 | 2013-01-30 | 薛宏卫 | Low-temperature liquid storage tank with constant-pressure device |
| CN105715946A (en) * | 2014-12-05 | 2016-06-29 | 天津航天瑞莱科技有限公司 | Air supply system and method for air source in noise test room |
| CN105715946B (en) * | 2014-12-05 | 2017-10-27 | 天津航天瑞莱科技有限公司 | A kind of noise fest room gas source feed system and method |
| CN111075694A (en) * | 2019-12-04 | 2020-04-28 | 珠海格力电器股份有限公司 | Drainage system and drainage method for air storage tank |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100901 Termination date: 20171221 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |