CN203892867U - Low-temperature liquid storage and supply system with low-temperature gas phase recycling function - Google Patents
Low-temperature liquid storage and supply system with low-temperature gas phase recycling function Download PDFInfo
- Publication number
- CN203892867U CN203892867U CN201420322654.1U CN201420322654U CN203892867U CN 203892867 U CN203892867 U CN 203892867U CN 201420322654 U CN201420322654 U CN 201420322654U CN 203892867 U CN203892867 U CN 203892867U
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- Prior art keywords
- low
- valve
- temperature
- vaporizer
- storage tank
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Links
- 239000007788 liquid Substances 0.000 title claims abstract description 20
- 238000004064 recycling Methods 0.000 title abstract 2
- 239000006200 vaporizer Substances 0.000 claims abstract description 27
- 239000007789 gas Substances 0.000 claims description 27
- 239000012071 phase Substances 0.000 claims description 18
- 239000007792 gaseous phase Substances 0.000 claims description 9
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 8
- 238000011084 recovery Methods 0.000 claims description 7
- 239000003949 liquefied natural gas Substances 0.000 claims description 6
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical group C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 claims description 4
- 229910052757 nitrogen Inorganic materials 0.000 claims description 4
- WWYNJERNGUHSAO-XUDSTZEESA-N (+)-Norgestrel Chemical compound O=C1CC[C@@H]2[C@H]3CC[C@](CC)([C@](CC4)(O)C#C)[C@@H]4[C@@H]3CCC2=C1 WWYNJERNGUHSAO-XUDSTZEESA-N 0.000 claims description 3
- 239000002699 waste material Substances 0.000 abstract description 4
- 238000009792 diffusion process Methods 0.000 abstract 2
- 238000000034 method Methods 0.000 description 4
- 238000009413 insulation Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000009834 vaporization Methods 0.000 description 2
- 230000008016 vaporization Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000009191 jumping Effects 0.000 description 1
Landscapes
- Filling Or Discharging Of Gas Storage Vessels (AREA)
Abstract
The utility model discloses a low-temperature liquid storage and supply system with a low-temperature gas phase recycling function. The low-temperature liquid storage and supply system comprises a low-temperature storage tank, a first vaporizer, a buffer tank, an automatic adjusting valve, a self-pressurizing vaporizer, a first valve, a second valve and a gas use pipeline for connecting gas points, wherein a liquid feeding hole, a liquid outlet, a pressurizing hole and a gas phase hole are formed in the low-temperature storage tank; the liquid feeding hole is connected with a low-temperature liquid supply pipeline; a pipeline outside the liquid outlet is divided into a first branch tube and a second branch tube; the first branch tube is connected with the first vaporizer, the buffer tank and the gas use pipeline in sequence; a first valve is arranged in the position close to the low-temperature storage tank on the first branch tube; the second branch tube is connected with the automatic adjusting valve, the self-pressurizing vaporizer and the pressurizing hole in sequence. Low-temperature air generated inside the low-temperature storage tank can be recycled, the waste of air diffusion is avoided, and the potential safety hazard caused by diffusion is eliminated.
Description
Technical field
The utility model relates to cryogenic liquide storage provisioning technique field, relates in particular to a kind of cryogenic liquide storage supply system with low-temperature gaseous phase recovery function.
Background technique
Current low-temperature storage tank, as liquid nitrogen storage tank, ethene storage tank etc., though storage tank has been carried out to insulation, but can not accomplish absolute thermal insulation, therefore always have certain heat and enter storage tank, make cryogenic liquide evaporation, vaporization in tank, thereby cause the pressure of storage tank to raise.In the time that pressure is increased to a certain degree, just must carry out pressure release to storage tank, in order to avoid safety valve jumping up or other security incidents occur, current pressure-relief measure only diffuses, and this has not only caused unnecessary waste, and has certain potential safety hazard.
Model utility content
The purpose of this utility model is to provide a kind of cryogenic liquide storage supply system with low-temperature gaseous phase recovery function, thereby solves the foregoing problems existing in prior art.
To achieve these goals, the technical solution adopted in the utility model is as follows:
There is low-temperature gaseous phase and reclaim the cryogenic liquide storage supply system of function, comprise low-temperature storage tank, the first vaporizer, knock out drum, direct-operated regulator, from boosting vaporizer, the first valve, the second valve be connected with each use air pipe with gas point; Described low-temperature storage tank is provided with filling opening, liquid outlet, ftercompction mouth and gas phase mouth; Described filling opening is connected with cryogenic liquide supply line, pipeline outside described liquid outlet is divided into the first branch road and the second branch road, wherein the first branch road and the first vaporizer, knock out drum and be linked in sequence with air pipe, described the first branch road is provided with the first valve near the position of described low-temperature storage tank, described the second branch road and direct-operated regulator, is linked in sequence from boosting vaporizer and described ftercompction mouth; On described gas phase mouth, be connected with one end of gas phase reclaim line, the other end of described gas phase reclaim line is connected on the pipeline between described the first valve and described the first vaporizer, and described gas phase reclaim line is provided with the second valve.
Preferably, described cryogenic liquide is liquid nitrogen, liquid ethylene or LNG Liquefied natural gas.
Preferably, described the second valve is electric control valve.
Preferably, between described the second valve and described low-temperature storage tank, be provided with pressure transducer, described pressure transducer and described the second valve are electrically connected with automatic controller respectively.
The beneficial effects of the utility model are:
1. the cryogenic gas that recyclable low-temperature storage tank produces, has stopped the waste causing because diffusing; 2. eliminated the potential safety hazard producing because diffusing.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model;
Wherein: 1---low-temperature storage tank; 2---the first vaporizer; 3---knock out drum; 4---cryogenic liquide supply line; 5---gas point; 6---is from boosting vaporizer; 7---gas phase mouth; 8---direct-operated regulator; 9---the first valve; 10---the second valve; 11---gas phase reclaim line; 12---ftercompction mouth; 13---liquid outlet; 14---filling opening.
Embodiment
In order to make the purpose of this utility model, technological scheme and advantage clearer, below in conjunction with accompanying drawing, the utility model is further elaborated.Should be appreciated that embodiment described herein is only in order to explain the utility model, and be not used in restriction the utility model.
As shown in Figure 1, the utility model discloses and a kind ofly there is low-temperature gaseous phase and reclaim the cryogenic liquide storage supply system of function, comprise low-temperature storage tank, the first vaporizer, knock out drum, direct-operated regulator, from boosting vaporizer, the first valve, the second valve be connected with each use air pipe with gas point; Described low-temperature storage tank is provided with filling opening, liquid outlet, ftercompction mouth and gas phase mouth; Described filling opening is connected with cryogenic liquide supply line, pipeline outside described liquid outlet is divided into the first branch road and the second branch road, wherein the first branch road and the first vaporizer, knock out drum and be linked in sequence with air pipe, described the first branch road is provided with the first valve near the position of described low-temperature storage tank, described the second branch road and direct-operated regulator, is linked in sequence from boosting vaporizer and described ftercompction mouth; On described gas phase mouth, be connected with one end of gas phase reclaim line, the other end of described gas phase reclaim line is connected on the pipeline between described the first valve and described the first vaporizer, and described gas phase reclaim line is provided with the second valve.
Described cryogenic liquide is liquid nitrogen, liquid ethylene or LNG Liquefied natural gas.
Working method of the present utility model is:
Cryogenic liquide enters the first vaporizer from the liquid outlet of low-temperature storage tank, carry out heat exchange by the first vaporizer cryogenic liquide and air, thereby cryogenic liquide vaporized and be heated to normal temperature state, then entering knock out drum and store, finally delivering to each gas point of using by knock out drum.If the pressure in low-temperature storage tank is lower than the setting pressure of direct-operated regulator, direct-operated regulator is opened, cryogenic liquide enters from boosting vaporizer, through return to low-temperature storage tank after boosting vaporizer vaporization, to improve the pressure of low-temperature storage tank, when low-temperature storage tank pressure is higher than the setting pressure of direct-operated regulator, direct-operated regulator is closed automatically, stops supercharging.
In the situation that native system is of little use (the first valve is in the time of closed condition), owing to leaking hot existence, the pressure of low-temperature storage tank can constantly raise, in the time that raising, pressure of storage tank no longer needs to diffuse, but introduce the first vaporizer pipeline before by opening second valve goalkeeper cryogenic gas, then by entering knock out drum after the first vaporizer heating, and then flow to each gas point of using, therefore native system can be avoided diffusing, and realizes thereby reach the object economizing on resources.
Native system can also be realized the automatic control that gas phase reclaims by installing the mode of pressure transducer and automatic controller additional, and implementation is that described the second valve is electric control valve.Between described the second valve and described low-temperature storage tank, be provided with pressure transducer, described pressure transducer and described the second valve are electrically connected with automatic controller respectively.In the time that pressure transducer detects the force value that needs pressure release, automatic controller control the second valve opening is realized pressure release, automatic controller control the second valve closing in the time that pressure recovers normal.
By adopting the disclosed technique scheme of the utility model, obtain following useful effect:
1. the cryogenic gas that recyclable low-temperature storage tank produces, has stopped the waste causing because diffusing; 2. eliminated the potential safety hazard producing because diffusing.
The above is only preferred implementation of the present utility model; it should be pointed out that for those skilled in the art, do not departing under the prerequisite of the utility model principle; can also make some improvements and modifications, these improvements and modifications also should be looked protection domain of the present utility model.
Claims (4)
1. one kind has the cryogenic liquide storage supply system of low-temperature gaseous phase recovery function, it is characterized in that, comprise low-temperature storage tank, the first vaporizer, knock out drum, direct-operated regulator, from boosting vaporizer, the first valve, the second valve and be connected with each with gas point with air pipe; Described low-temperature storage tank is provided with filling opening, liquid outlet, ftercompction mouth and gas phase mouth; Described filling opening is connected with cryogenic liquide supply line, pipeline outside described liquid outlet is divided into the first branch road and the second branch road, wherein the first branch road and the first vaporizer, knock out drum and be linked in sequence with air pipe, described the first branch road is provided with the first valve near the position of described low-temperature storage tank, described the second branch road and direct-operated regulator, is linked in sequence from boosting vaporizer and described ftercompction mouth; On described gas phase mouth, be connected with one end of gas phase reclaim line, the other end of described gas phase reclaim line is connected on the pipeline between described the first valve and described the first vaporizer, and described gas phase reclaim line is provided with the second valve.
2. the cryogenic liquide storage supply system with low-temperature gaseous phase recovery function according to claim 1, is characterized in that, described cryogenic liquide is liquid nitrogen, liquid ethylene or LNG Liquefied natural gas.
3. the cryogenic liquide storage supply system with low-temperature gaseous phase recovery function according to claim 1, is characterized in that, described the second valve is electric control valve.
4. the cryogenic liquide storage supply system with low-temperature gaseous phase recovery function according to claim 3, it is characterized in that, between described the second valve and described low-temperature storage tank, be provided with pressure transducer, described pressure transducer and described the second valve are electrically connected with automatic controller respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420322654.1U CN203892867U (en) | 2014-06-17 | 2014-06-17 | Low-temperature liquid storage and supply system with low-temperature gas phase recycling function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420322654.1U CN203892867U (en) | 2014-06-17 | 2014-06-17 | Low-temperature liquid storage and supply system with low-temperature gas phase recycling function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203892867U true CN203892867U (en) | 2014-10-22 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420322654.1U Expired - Lifetime CN203892867U (en) | 2014-06-17 | 2014-06-17 | Low-temperature liquid storage and supply system with low-temperature gas phase recycling function |
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| Country | Link |
|---|---|
| CN (1) | CN203892867U (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2017071615A1 (en) * | 2015-10-29 | 2017-05-04 | CRYODIRECT Limited | Device for transporting liquefied gas and method thereof |
| CN106918196A (en) * | 2015-12-24 | 2017-07-04 | 中集安瑞科能源装备（苏州）有限公司 | The re-liquefied system of boil-off gas |
| CN108916647A (en) * | 2018-06-25 | 2018-11-30 | 杭州新亚低温科技有限公司 | A kind of cryogenic liquid is converted into the carburetion system of high pressure gas |
| CN109185700A (en) * | 2018-10-20 | 2019-01-11 | 山东环达环保科技有限公司 | A kind of coke-oven plant's material groove tank pressure maintaining and exhaust gas treating method and device |
| CN109681777A (en) * | 2019-01-08 | 2019-04-26 | 武希盛 | A kind of unpowered pump of liquefied gas at low temp |
| CN109990200A (en) * | 2019-03-24 | 2019-07-09 | 山东豪迈化工技术有限公司 | Feeding system, liquefied chlorine loading method and chlorine Supply Method |
| CN110630899A (en) * | 2019-10-11 | 2019-12-31 | 中国科学院理化技术研究所 | Low-temperature gas supply system |
| CN115405854A (en) * | 2022-08-25 | 2022-11-29 | 深圳中广核工程设计有限公司 | Pressure control system and method for liquid nitrogen storage tank and nitrogen distribution pipeline |
-
2014
- 2014-06-17 CN CN201420322654.1U patent/CN203892867U/en not_active Expired - Lifetime
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2017071615A1 (en) * | 2015-10-29 | 2017-05-04 | CRYODIRECT Limited | Device for transporting liquefied gas and method thereof |
| CN106918196A (en) * | 2015-12-24 | 2017-07-04 | 中集安瑞科能源装备（苏州）有限公司 | The re-liquefied system of boil-off gas |
| CN108916647A (en) * | 2018-06-25 | 2018-11-30 | 杭州新亚低温科技有限公司 | A kind of cryogenic liquid is converted into the carburetion system of high pressure gas |
| CN109185700A (en) * | 2018-10-20 | 2019-01-11 | 山东环达环保科技有限公司 | A kind of coke-oven plant's material groove tank pressure maintaining and exhaust gas treating method and device |
| CN109681777A (en) * | 2019-01-08 | 2019-04-26 | 武希盛 | A kind of unpowered pump of liquefied gas at low temp |
| CN109990200A (en) * | 2019-03-24 | 2019-07-09 | 山东豪迈化工技术有限公司 | Feeding system, liquefied chlorine loading method and chlorine Supply Method |
| CN110630899A (en) * | 2019-10-11 | 2019-12-31 | 中国科学院理化技术研究所 | Low-temperature gas supply system |
| CN115405854A (en) * | 2022-08-25 | 2022-11-29 | 深圳中广核工程设计有限公司 | Pressure control system and method for liquid nitrogen storage tank and nitrogen distribution pipeline |
| CN115405854B (en) * | 2022-08-25 | 2024-05-10 | 深圳中广核工程设计有限公司 | System and method for controlling pressure of liquid nitrogen storage tank and nitrogen distribution pipeline |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20141022 |
|
| CX01 | Expiry of patent term |