CN206846301U - A kind of cryogenic liquid tank pressure-regulating device - Google Patents
A kind of cryogenic liquid tank pressure-regulating device Download PDFInfo
- Publication number
- CN206846301U CN206846301U CN201720497280.0U CN201720497280U CN206846301U CN 206846301 U CN206846301 U CN 206846301U CN 201720497280 U CN201720497280 U CN 201720497280U CN 206846301 U CN206846301 U CN 206846301U
- Authority
- CN
- China
- Prior art keywords
- valve
- liquid tank
- cryogenic liquid
- pressure
- regulating device
- 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.)
- Expired - Fee Related
Links
- 239000007788 liquid Substances 0.000 title claims abstract description 36
- 230000006837 decompression Effects 0.000 claims abstract description 15
- 239000006200 vaporizer Substances 0.000 claims abstract description 8
- 239000010963 304 stainless steel Substances 0.000 claims description 3
- 229910000589 SAE 304 stainless steel Inorganic materials 0.000 claims description 3
- 230000008016 vaporization Effects 0.000 description 2
- 238000009834 vaporization Methods 0.000 description 2
- 238000010276 construction Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000012774 insulation material Substances 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
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- Filling Or Discharging Of Gas Storage Vessels (AREA)
Abstract
The utility model discloses a kind of cryogenic liquid tank pressure-regulating device, including cryogenic liquid tank and decompression control valve, decompression control valve is arranged at the top of cryogenic liquid tank, cryogenic liquid tank bottom is provided with pressure piping, pressure piping is provided with outlet shutoff valve, boost pressure regulation valve, check valve, vaporizer and inlet shutoff valve, and safety valve is equipped between inlet shutoff valve and vaporizer between outlet shutoff valve and boost pressure regulation valve.The utility model on the basis of original by setting decompression control valve and boost pressure regulation valve, when cryogenic liquid tank pressure is higher than setting value, decompression control valve is controlled by Distributed Control System and carries out pressure release, when cryogenic liquid tank pressure is less than setting value, boost pressure regulation valve is controlled by Distributed Control System to be pressurized, it so can ensure that cryogenic liquid tank pressure is constant in a pressure set points by Distributed Control System control, while also ensure that the safety that cryogenic liquid tank uses.
Description
Technical field
A kind of cryogenic liquid tank pressure regulating system is the utility model is related to, more specifically, it relates to a kind of low temperature
Liquid storage vessel pressure-regulating device.
Background technology
Cryogenic liquid tank is mainly used in storing low temperature class fluid product, and due to the limitation of insulation material, low temperature produces in groove
Product can have re-heat vaporization phenomenon, and with the vaporization of liquid, pressure is continuously increased in groove, if pressure release can cause to explode not in time
Danger.If hypotony can easily produce negative pressure in other groove and suck-back air enters in storage tank, directly affect in groove and produce
Quality.
Utility model content
The purpose of this utility model is overcome the deficiencies in the prior art, there is provided a kind of simple in construction, safe and reliable is low
Geothermal liquid storage pressure adjusting means.
In order to achieve the above object, the technical solution adopted in the utility model is：
A kind of cryogenic liquid tank pressure-regulating device, including cryogenic liquid tank and decompression control valve, wherein described
Decompression control valve is arranged at the top of cryogenic liquid tank, and described cryogenic liquid tank bottom is provided with pressure piping, described
Pressure piping is provided with outlet shutoff valve, boost pressure regulation valve, check valve, vaporizer and inlet shutoff valve, and described outlet is cut
Safety valve is only equipped between inlet shutoff valve and vaporizer between valve and boost pressure regulation valve.
Further, described decompression control valve and boost pressure regulation valve are by Distributed Control System unity loop control.
Further, described pressure piping refers to 304 stainless steel tubes.
The utility model works as cryogenic liquid tank by setting decompression control valve and boost pressure regulation valve on the basis of original
When pressure is higher than setting value, decompression control valve is controlled by Distributed Control System and carries out pressure release, when cryogenic liquid tank pressure
When power is less than setting value, boost pressure regulation valve is controlled by Distributed Control System and is pressurized, be so by collecting and distributing control
System control can ensure that cryogenic liquid tank pressure is constant in a pressure set points, while also ensure that cryogenic liquid tank uses
Safety.
Brief description of the drawings
Fig. 1 is a kind of structural representation of specific embodiment of the utility model.
It is shown in figure：1- cryogenic liquid tanks；2- decompression control valves；3- pressure pipings；4- outlet shutoff valves；4a- enters
Mouth stop valve；5- safety valves；6- boost pressure regulation valves；7- check valves；8- vaporizers.
Embodiment
For the ease of the understanding of those skilled in the art, the utility model is further described below in conjunction with the accompanying drawings.
A kind of cryogenic liquid tank pressure-regulating device as shown in Figure 1, including cryogenic liquid tank 1 and decompression control valve
2, wherein described decompression control valve 2 is arranged at the top of cryogenic liquid tank 1, the described bottom of cryogenic liquid tank 1 is provided with
Pressure piping 3, described pressure piping 3 are provided with outlet shutoff valve 4, boost pressure regulation valve 6, check valve 7, vaporizer 8 and entered
Mouth stop valve 4a, is all provided between described outlet shutoff valve 4 and boost pressure regulation valve 6 between inlet shutoff valve 4a and vaporizer 8
There is safety valve 5.
Further, described decompression control valve 2 and boost pressure regulation valve 6 are by Distributed Control System unity loop control.
Further, described pressure piping 3 refers to 304 stainless steel tubes.
After the utility model uses such scheme, have the advantage that compared with prior art：
It can ensure that the safe and reliable use of cryogenic liquid tank 1.
It can ensure that in the groove of cryogenic liquid tank 1 that pressure is constant in a pressure set points, reduce unnecessary trouble.
For a preferred embodiment of the present utility model, in the case of the utility model design is not departed from, carry out any aobvious
And the deformation and replacement being clear to, belong to scope of protection of the utility model.
Claims (3)
1. a kind of cryogenic liquid tank pressure-regulating device, including cryogenic liquid tank (1) and decompression control valve (2), wherein institute
The decompression control valve (2) stated is arranged at the top of cryogenic liquid tank (1), and described cryogenic liquid tank (1) bottom, which is provided with, to be increased
Pressure pipe road (3), described pressure piping (3) are provided with outlet shutoff valve (4), boost pressure regulation valve (6), check valve (7), vaporizer
(8) and inlet shutoff valve (4a), between described outlet shutoff valve (4) and boost pressure regulation valve (6) and inlet shutoff valve (4a)
Safety valve (5) is equipped between vaporizer (8).
A kind of 2. cryogenic liquid tank pressure-regulating device according to claim 1, it is characterised in that：Described pressure release is adjusted
It is by Distributed Control System unity loop control to save valve (2) and boost pressure regulation valve (6).
A kind of 3. cryogenic liquid tank pressure-regulating device according to claim 1, it is characterised in that：Described pressure inlet
Road (3) refers to 304 stainless steel tubes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720497280.0U CN206846301U (en) | 2017-04-25 | 2017-04-25 | A kind of cryogenic liquid tank pressure-regulating device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720497280.0U CN206846301U (en) | 2017-04-25 | 2017-04-25 | A kind of cryogenic liquid tank pressure-regulating device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206846301U true CN206846301U (en) | 2018-01-05 |
Family
ID=60793584
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720497280.0U Expired - Fee Related CN206846301U (en) | 2017-04-25 | 2017-04-25 | A kind of cryogenic liquid tank pressure-regulating device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206846301U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116336376A (en) * | 2023-04-13 | 2023-06-27 | 中国空气动力研究与发展中心高速空气动力研究所 | Be used for high-flow instantaneous discharge liquid nitrogen storage tank air supplementing system |
-
2017
- 2017-04-25 CN CN201720497280.0U patent/CN206846301U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116336376A (en) * | 2023-04-13 | 2023-06-27 | 中国空气动力研究与发展中心高速空气动力研究所 | Be used for high-flow instantaneous discharge liquid nitrogen storage tank air supplementing system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180105 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |