CN102954820B - A kind of liquid level measurement system for low-temperature heat-insulation storage tank - Google Patents
A kind of liquid level measurement system for low-temperature heat-insulation storage tank Download PDFInfo
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- CN102954820B CN102954820B CN201110238363.5A CN201110238363A CN102954820B CN 102954820 B CN102954820 B CN 102954820B CN 201110238363 A CN201110238363 A CN 201110238363A CN 102954820 B CN102954820 B CN 102954820B
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- stop valve
- pressure pipe
- phase pressure
- valve
- basin
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Abstract
The invention provides a kind of liquid level measurement system for low-temperature heat-insulation storage tank, comprise basin, upper gaseous phase pressure pipe, first stop valve, equalizing valve, tensimeter, second stop valve and lower liquid phase pressure pipe, described upper gaseous phase pressure pipe is connected with the top ullage space of basin, described lower liquid phase pressure pipe is connected with the bottommost of basin, the outlet of upper gaseous phase pressure pipe is connected with one end of the first stop valve, the outlet of lower liquid phase pressure pipe is connected with one end of the second stop valve, described equalizing valve and tensimeter are serially connected on the other end of the first stop valve and the other end of the second stop valve respectively.The aperture position of lower liquid phase pressure pipe of the present invention and the liquid outlet of basin keep certain distance, and the whirlpool caused to reduce large discharge fluid causes measures fluctuation.Lower liquid phase pressure pipe is the serpentine configuration of level in the vacuum interlayer of basin simultaneously, makes it have enough horizontal lengths, liquid is fully vaporized at horizontal segment, guarantees measuring accuracy.
Description
Technical field
The utility model relates to a kind of liquid level measurement system for low-temperature heat-insulation storage tank, belongs to low-temperature heat-insulation storage tank technical field of liquid level measurement.
Background technology
Existing low-temperature heat-insulation storage tank adopts a kind of supercharging mode usually, when supercharging, there is the phenomenon that liquid fluctuating is larger, affect the precision of level gauging, and stability is bad, affects practical operation and uses.
Summary of the invention
The purpose of this utility model usually adopts a kind of supercharging mode for solving existing low-temperature heat-insulation storage tank, when supercharging, there is the phenomenon that liquid fluctuating is larger, affect the precision of level gauging, and stability is bad, affect the problem that practical operation uses, and then a kind of liquid level measurement system for low-temperature heat-insulation storage tank is provided.
The purpose of this utility model is achieved through the following technical solutions:
A kind of liquid level measurement system for low-temperature heat-insulation storage tank, comprise basin, upper gaseous phase pressure pipe, first stop valve, equalizing valve, tensimeter, second stop valve and lower liquid phase pressure pipe, described upper gaseous phase pressure pipe is connected with the top ullage space of basin, described lower liquid phase pressure pipe is connected with the bottommost of basin, the outlet of upper gaseous phase pressure pipe is connected with one end of the first stop valve, the outlet of lower liquid phase pressure pipe is connected with one end of the second stop valve, described equalizing valve and tensimeter are serially connected on the other end of the first stop valve and the other end of the second stop valve respectively.
The beneficial effects of the utility model: the utility model can guarantee the stability of level gauging under various operating mode; Pressure charging system of the present utility model, possesses from supercharging and outer air source pressurizing function simultaneously, and by pressurized exhaust gas pipe in tank, pressurization gas is evenly discharged, does not cause liquid fluctuating.
Accompanying drawing explanation
The one-piece construction schematic diagram of a kind of low-temperature heat-insulation storage tank level gauging that Fig. 1 provides for embodiment of the present utility model and pressure charging system;
Fig. 2 is the serpentine configuration schematic diagram of lower liquid phase pressure pipe 8;
Fig. 3 is the sectional view of pressurized exhaust gas pipe 10 in tank.
Embodiment
This embodiment provides a kind of liquid level measurement system for low-temperature heat-insulation storage tank, as depicted in figs. 1 and 2, liquid level measuring system comprises basin 1, upper gaseous phase pressure pipe 3, first stop valve 4, equalizing valve 5, tensimeter 6, second stop valve 7 and lower liquid phase pressure pipe 8, described upper gaseous phase pressure pipe 3 is connected with the top ullage space of basin 1, described lower liquid phase pressure pipe 8 is connected with the bottommost of basin 1, the outlet of upper gaseous phase pressure pipe 3 is connected with one end of the first stop valve 4, the outlet of lower liquid phase pressure pipe 8 is connected with one end of the second stop valve 7, described equalizing valve 5 and tensimeter 6 are serially connected on the other end of the first stop valve 4 and the other end of the second stop valve 7 respectively.
As shown in figures 1 and 3, pressure charging system comprises pressurized exhaust gas pipe 10 in pressure charging system, outer air source pressurizing system and tank, describedly comprise cryogenic globe valve 11, low temperature variable valve 12, automatic pressure intensifier 13 and gas outlet 14 from pressure charging system, described cryogenic globe valve 11, low temperature variable valve 12, automatic pressure intensifier 13 are connected successively with gas outlet 14, one end of cryogenic globe valve 11 is connected with the liquid outlet 9 of basin 1, and one end of gas outlet 14 is connected with pressurized exhaust gas pipe 10 in tank; Outer air source pressurizing system comprises outer source of the gas access tube 15 and stop valve 16, and one end of described stop valve 16 is connected with outer source of the gas access tube 15, and the other end of stop valve 16 is connected with gas outlet 14.
In liquid level measuring system, the aperture position of lower liquid phase pressure pipe 8 and the liquid outlet 9 of basin 1 keep certain distance, and the whirlpool caused to reduce large discharge fluid causes measures fluctuation.Lower liquid phase pressure pipe 8 is the serpentine configuration of level in the vacuum interlayer of basin 1 simultaneously, makes it have enough horizontal lengths, liquid is fully vaporized at horizontal segment, guarantees measuring accuracy.
Bottom basin 1, get liquid from pressure charging system, by entering automatic pressure intensifier 13 after cryogenic globe valve 11, low temperature variable valve 12, entering gas outlet 14 after being vaporized by automatic pressure intensifier 13 and getting back to supercharging in tank.External pressurization gas accesses from outer air source pressurizing pipe joint by outer air source pressurizing system, enters supercharging in tank by gas outlet.In tank, pressurized exhaust gas pipe 10 extends layout along basin 1 length direction, and vent port 10-1 is evenly had on pipe, the angle of described vent port 10-1 is 45 degree and is inclined upwardly, after pressurization gas enters ascending pipe, evenly released to top along ascending pipe by vent port, thus reduce the direct impact liquid level liquid level of high pressure draught, avoid liquid fluctuating.
The above; be only the utility model preferably embodiment; but protection domain of the present utility model is not limited thereto; anyly be familiar with those skilled in the art in the technical scope that the utility model discloses; the change that can expect easily or replacement, all should be encompassed within protection domain of the present utility model.Therefore, protection domain of the present utility model should be as the criterion with the protection domain of claims.
Claims (2)
1. a liquid level measurement system for low-temperature heat-insulation storage tank, comprise basin, upper gaseous phase pressure pipe, first stop valve, equalizing valve, tensimeter, second stop valve and lower liquid phase pressure pipe, it is characterized in that, described upper gaseous phase pressure pipe is connected with the top ullage space of basin, described lower liquid phase pressure pipe is connected with the bottommost of basin, the outlet of upper gaseous phase pressure pipe is connected with one end of the first stop valve, the outlet of lower liquid phase pressure pipe is connected with one end of the second stop valve, described equalizing valve and tensimeter are serially connected on the other end of the first stop valve and the other end of the second stop valve respectively,
Described liquid level measurement system for low-temperature heat-insulation storage tank also comprises pressure charging system, described pressure charging system comprises pressurized exhaust gas pipe in pressure charging system, outer air source pressurizing system and tank, describedly comprise cryogenic globe valve, low temperature variable valve, automatic pressure intensifier and gas outlet from pressure charging system, described cryogenic globe valve, low temperature variable valve, automatic pressure intensifier are connected successively with gas outlet, one end of cryogenic globe valve is connected with the liquid outlet of basin, and one end of gas outlet is connected with pressurized exhaust gas pipe in tank; Outer air source pressurizing system comprises outer source of the gas access tube and stop valve, and one end of described stop valve is connected with outer source of the gas access tube, and the other end of stop valve is connected with gas outlet.
2. liquid level measurement system for low-temperature heat-insulation storage tank according to claim 1, is characterized in that, lower liquid phase pressure pipe is the serpentine configuration of level.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110238363.5A CN102954820B (en) | 2011-08-17 | 2011-08-17 | A kind of liquid level measurement system for low-temperature heat-insulation storage tank |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110238363.5A CN102954820B (en) | 2011-08-17 | 2011-08-17 | A kind of liquid level measurement system for low-temperature heat-insulation storage tank |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102954820A CN102954820A (en) | 2013-03-06 |
| CN102954820B true CN102954820B (en) | 2015-10-28 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110238363.5A Expired - Fee Related CN102954820B (en) | 2011-08-17 | 2011-08-17 | A kind of liquid level measurement system for low-temperature heat-insulation storage tank |
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| CN (1) | CN102954820B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104407121B (en) * | 2014-12-08 | 2016-03-23 | 中国特种设备检测研究院 | At the proving installation of oily detecting instrument |
| CN109655131A (en) * | 2018-12-29 | 2019-04-19 | 上海齐耀动力技术有限公司 | A kind of low-temperature (low temperature) vessel differential pressure type level gauge liquid phase pipeline experimental system visualizing |
| CN113390487B (en) * | 2021-05-13 | 2024-02-13 | 中车长江运输设备集团有限公司 | Differential pressure type liquid level measurement system, low-temperature medium storage tank and tank truck |
| CN114673924A (en) * | 2022-03-18 | 2022-06-28 | 中国人民解放军63796部队 | Multilayer low-temperature storage tank for supercooled oxygen preparation and lossless storage |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3191395A (en) * | 1963-07-31 | 1965-06-29 | Chicago Bridge & Iron Co | Apparatus for storing liquefied gas near atmospheric pressure |
| DE19632801A1 (en) * | 1995-09-25 | 1997-03-27 | Rockwell International Corp | Compression of intensely-cooled liquid fuel for rockets, etc. |
| US6073450A (en) * | 1999-03-04 | 2000-06-13 | Boeing North American | Combined diffuser and recirculation manifold in a propellant tank |
| CN2656994Y (en) * | 2003-12-02 | 2004-11-17 | 冯长周 | Liquid level-concentration measuring device |
| CN201497542U (en) * | 2009-08-07 | 2010-06-02 | 常州博朗低温设备有限公司 | Liquid-phase pressure taking device for differential pressure type level gauge |
-
2011
- 2011-08-17 CN CN201110238363.5A patent/CN102954820B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3191395A (en) * | 1963-07-31 | 1965-06-29 | Chicago Bridge & Iron Co | Apparatus for storing liquefied gas near atmospheric pressure |
| DE19632801A1 (en) * | 1995-09-25 | 1997-03-27 | Rockwell International Corp | Compression of intensely-cooled liquid fuel for rockets, etc. |
| US6073450A (en) * | 1999-03-04 | 2000-06-13 | Boeing North American | Combined diffuser and recirculation manifold in a propellant tank |
| CN2656994Y (en) * | 2003-12-02 | 2004-11-17 | 冯长周 | Liquid level-concentration measuring device |
| CN201497542U (en) * | 2009-08-07 | 2010-06-02 | 常州博朗低温设备有限公司 | Liquid-phase pressure taking device for differential pressure type level gauge |
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| CN102954820A (en) | 2013-03-06 |
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| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
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| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20151028 Termination date: 20160817 |