CN1504671A - Method and apparatus for low-temperature liquid self-pressurizing, gasifying and transferring - Google Patents
Method and apparatus for low-temperature liquid self-pressurizing, gasifying and transferring Download PDFInfo
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- CN1504671A CN1504671A CNA021535078A CN02153507A CN1504671A CN 1504671 A CN1504671 A CN 1504671A CN A021535078 A CNA021535078 A CN A021535078A CN 02153507 A CN02153507 A CN 02153507A CN 1504671 A CN1504671 A CN 1504671A
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- cryogenic liquide
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Abstract
The invention provides a low-temperature liquid self supercharging, gasification, transportation process and apparatus, wherein the process comprises the steps of, actuating the self-supercharging device of the low-temperature liquid storage tank, the low-temperature liquid exchanging heat with the surrounding air through the self-supercharging device of the liquid storage tank, gasifying part of the liquid into pressured gas and returning to the gas phase space of the liquid storing tank, modulating and regulating the gasified gas, and transporting to the user terminal through pipes.
Description
Technical field
The present invention relates to the method and apparatus of a kind of cryogenic liquide supercharging, gasification, conveying, belong to the cryogenic liquide technical field.
Background technique
Conventional cryogenic liquide gasification, supercharging, conveying is to gasify, carry by water bath type gasifier after adopting the cryogenic liquid pump supercharging.Because the centrifugal pump working flow is big, be not suitable for small flow cryogenic liquide gasification supercharging and carry, factor seriously restricting it is extensive use of and big, the machine operation rate of fault height of pressure surge behind the plunger pump pump, operation maintenance workload be big etc.; The use of water bath type gasifier simultaneously increases the consumption of steam and requires the reliable operation (preventing to freeze) of water temperature robot control system(RCS), causes the cryogenic liquide gasification to carry cost higher.
Summary of the invention
The objective of the invention is to overcome shortcoming of the prior art, cryogenic liquide gasification, supercharging, the delivery method of a kind of employing from supercharging, air-bathing gasifier are provided.
The objective of the invention is to be achieved through the following technical solutions:
The automatic pressure intensifier of start liquid storage tank, cryogenic liquide carries out exchange heat by the automatic pressure intensifier and the ambient air of liquid storage groove, make partially liq gasification for pressurization gas and be back to the liquid storage groove gas-phase space, described pressurization gas is urged to the cryogenic liquide in the storage tank in the vaporizer in liquid storage groove and is gasificated into gas at normal temperature, and the pressed gas after the gasification is delivered to user terminal by pipeline after voltage stabilizing, the quantitative adjusting.The pressure of described pressed gas, flow can be regulated arbitrarily in system design working pressure and vaporizer peak rate of flow scope according to pipe network gas consumption and reset pressure setting value.The restriction of system design working pressure liquid body storage tank manufacturing capacity, the gasification flow generally can be regulated arbitrarily between 0～separate unit vaporizer peak rate of flow, can make by many vaporizer parallel connections when use traffic is big to be used for realizing, but will consider that liquid storage groove stores the limiting factor of amount of liquid.
Described cryogenic liquide is Permanent gass such as liquid air, liquid oxygen, liquid nitrogen, liquid argon.
Cryogenic liquide comprises cryogenic liquide storage tank, pressurized machine, air-bathing gasifier, conveyance conduit and self-erecting type reduction valve group, diaphragm valve group from the equipment of supercharging, gasification, transporting system.
Description of drawings
The present invention is described in detail below in conjunction with accompanying drawing.
Fig. 1 is the schematic representation of cryogenic liquide of the present invention from the method and apparatus of supercharging, gasification, conveying.
Among the figure: the 1-liquid storage groove, 2-storage tank automatic pressure intensifier, 3-self-erecting type reduction valve group, 4-cryogenic liquide expulsion valve, 5-air-bathing gasifier, 6-diaphragm valve group, fluid pipeline behind the 7-liquid storage groove, gas pipeline behind the 8-vaporizer, the pressure charging valve in the 9-self-erecting type reduction valve group 3, the reduction valve in the 10-self-erecting type reduction valve group 3.
Cryogenic liquide comprises cryogenic liquide storage tank 1, storage tank automatic pressure intensifier 2, air-bathing gasifier 5, reaches self-erecting type reduction valve group 3, diaphragm valve group 6 from the equipment of supercharging, gasification, transporting system.
Storage tank automatic pressure intensifier 2 is installed in the bottom of liquid storage groove 1, and the cryogenic liquide of storage tank 1 inside can enter in the storage tank automatic pressure intensifier 2 by storage tank bottom liquid connecting pipe and outlet shutoff valve door, and forms pressurization gas by pressurized machine 2 and ambient air heat exchange.The work initial stage, whole pressurization gas is sent into the gas-phase space of liquid storage groove 1 by the pressure charging valve 9 in the self-erecting type reduction valve group 3, when the gas-phase space pressure of liquid storage groove 1 meets or exceeds the work setting pressure of storage tank 1, automatic pressure intensifier 2 formed pressurization gas will be sent in the liquid output pipe road 7 of liquid storage groove 1 by the reduction valve 10 in the self-erecting type reduction valve group 3, thereby the gaseous pressure of guaranteeing liquid storage groove 1 is controlled at work setting pressure scope all the time.Cryogenic liquide in the liquid storage groove 1 flows to air-bathing gasifier 5 by cryogenic liquide discharge valve 4 under the pressure effect of storage tank gas-phase space pressurization gas, and gasifies with the ambient air heat exchange and to be gas, delivers to user terminal by conveyance conduit then.Gas after the gasification is realized automatic adjustment between 0～vaporizer peak rate of flow by the diaphragm valve group 6 on the conveyance conduit according to the pressure signal of conveyance conduit (being user's pipe network).
The present invention is owing to adopt cryogenic liquide automatic gasifying, supercharging, voltage stabilizing, quantitatively conveying, the cryogenic liquide gasification that realized need not power, do not have mechanical running device, no steam energy consumes is carried, on-the-spot unattended, remote monitoring, reduce the cryogenic liquide gasification significantly and carried cost, promoted the safe, convenient of cryogenic liquide to use.Describedly do not need machine operation equipment, and realize voltage stabilizing, quantitative line transportation from pressurization.
Embodiment
Peace steel oxyen manutactory is for the defeated argon device of steel-making steel ladle bottom argon blowing, and equipment comprises 10m
3, two of 2.0MPa liquid storage vessels, 110m
3, two of 2.0MPa air-bathing gasifiers, diaphragm valve group two covers.Two complete equipments are in parallel to be used, and it is 0～220m that tolerance is carried in design
3, discharge pressure is 0～2.0MPa.It is 100～150m that actual motion is carried tolerance
3, voltage stabilizing 1.3MPa can guarantee that the pressure argon gas carries continuously.
Claims (3)
1, a kind of cryogenic liquide is from supercharging, gasification, the method of carrying, it is characterized in that: the inner cryogenic liquide of liquid storage groove (1) enters in the automatic pressure intensifier (2) of liquid storage groove (1) by storage tank bottom liquid connecting pipe and outlet shutoff valve door, and form pressurization gas by automatic pressure intensifier (2) and ambient air heat exchange, the work initial stage, whole pressurization gas is sent into the gas-phase space of liquid storage groove (1) by the pressure charging valve (9) in the self-erecting type reduction valve group (3), when the gas-phase space pressure of liquid storage groove (1) meets or exceeds the work setting pressure of storage tank (1), the formed pressurization gas of automatic pressure intensifier (2) will be sent in the liquid output pipe road (7) of liquid storage groove (1) by the reduction valve (10) in the self-erecting type reduction valve group (3), thereby the gaseous pressure of guaranteeing liquid storage groove (1) is controlled at work setting pressure scope all the time, cryogenic liquide in the liquid storage groove (1) flows to air-bathing gasifier (5) by cryogenic liquide discharge valve (4) under the pressure effect of storage tank gas-phase space pressurization gas, and gasify with the ambient air heat exchange and to be gas, deliver to user terminal by conveyance conduit then, the gas after the gasification is realized automatic adjustment between 0～vaporizer peak rate of flow by the diaphragm valve group (6) on the conveyance conduit according to the pressure signal of conveyance conduit.
2, a kind of cryogenic liquide as claimed in claim 1 is characterized in that from the method for supercharging, gasification, conveying: described cryogenic liquide is Permanent gass such as liquid air, liquid oxygen, liquid nitrogen, liquid argon.
3, a kind of device that is used for the described cryogenic liquide conveying of claim 1 comprises cryogenic liquide storage tank (1), automatic pressure intensifier (2), air-bathing gasifier (5), conveyance conduit and realizes voltage stabilizing, self-erecting type reduction valve group (3), the diaphragm valve group (6) of quantitatively regulating.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA021535078A CN1504671A (en) | 2002-12-02 | 2002-12-02 | Method and apparatus for low-temperature liquid self-pressurizing, gasifying and transferring |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA021535078A CN1504671A (en) | 2002-12-02 | 2002-12-02 | Method and apparatus for low-temperature liquid self-pressurizing, gasifying and transferring |
Publications (1)
| Publication Number | Publication Date |
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| CN1504671A true CN1504671A (en) | 2004-06-16 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
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| CNA021535078A Pending CN1504671A (en) | 2002-12-02 | 2002-12-02 | Method and apparatus for low-temperature liquid self-pressurizing, gasifying and transferring |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101220905B (en) * | 2008-01-23 | 2010-06-02 | 袁祖强 | Vaporization device for converting cryogenic liquid into pressure gas |
| CN102116217A (en) * | 2010-09-28 | 2011-07-06 | 北京航空航天大学 | Self-boosting process predicating method for nitrous oxide storage box |
| CN103775828A (en) * | 2013-01-23 | 2014-05-07 | 摩尔动力(北京)技术股份有限公司 | Gas liquefied object hot-pressure pumping system |
| CN104481725A (en) * | 2014-11-13 | 2015-04-01 | 西安航空动力股份有限公司 | Self-pressurization method and device for hydrogen or helium |
| CN105650474A (en) * | 2016-01-07 | 2016-06-08 | 北京航天发射技术研究所 | Liquid nitrogen conveying pipeline capable of preventing water attacks |
| CN108150698A (en) * | 2017-12-25 | 2018-06-12 | 中国海洋石油集团有限公司 | Pneumatic diaphragm control valve executing agency diaphragm protection air source circuit |
| CN111550675A (en) * | 2020-05-09 | 2020-08-18 | 开封黄河空分集团有限公司 | Automatic-pressurization low-temperature liquid delivery method and device |
-
2002
- 2002-12-02 CN CNA021535078A patent/CN1504671A/en active Pending
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101220905B (en) * | 2008-01-23 | 2010-06-02 | 袁祖强 | Vaporization device for converting cryogenic liquid into pressure gas |
| CN102116217A (en) * | 2010-09-28 | 2011-07-06 | 北京航空航天大学 | Self-boosting process predicating method for nitrous oxide storage box |
| CN103775828A (en) * | 2013-01-23 | 2014-05-07 | 摩尔动力(北京)技术股份有限公司 | Gas liquefied object hot-pressure pumping system |
| CN104481725A (en) * | 2014-11-13 | 2015-04-01 | 西安航空动力股份有限公司 | Self-pressurization method and device for hydrogen or helium |
| CN104481725B (en) * | 2014-11-13 | 2016-01-13 | 西安航空动力股份有限公司 | A kind of working medium be hydrogen or helium from boosting method and device |
| CN105650474A (en) * | 2016-01-07 | 2016-06-08 | 北京航天发射技术研究所 | Liquid nitrogen conveying pipeline capable of preventing water attacks |
| CN108150698A (en) * | 2017-12-25 | 2018-06-12 | 中国海洋石油集团有限公司 | Pneumatic diaphragm control valve executing agency diaphragm protection air source circuit |
| CN111550675A (en) * | 2020-05-09 | 2020-08-18 | 开封黄河空分集团有限公司 | Automatic-pressurization low-temperature liquid delivery method and device |
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