CN202546250U - Rapid low-temperature liquid vaporization device - Google Patents
Rapid low-temperature liquid vaporization device Download PDFInfo
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- CN202546250U CN202546250U CN2012200415824U CN201220041582U CN202546250U CN 202546250 U CN202546250 U CN 202546250U CN 2012200415824 U CN2012200415824 U CN 2012200415824U CN 201220041582 U CN201220041582 U CN 201220041582U CN 202546250 U CN202546250 U CN 202546250U
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Abstract
The utility model relates to a rapid low-temperature liquid vaporization device, belonging to the technical field of low-temperature liquid vaporization equipment; the rapid low-temperature liquid vaporization device is used for rapidly throwing low-temperature liquid of metallurgy or chemical industry for vaporization, and has the technical scheme of comprising a large low-temperature liquid storage tank, a low-temperature liquid pump, a water bath type vaporizer, a vaporized gas conveying pipeline, a medium-pressure low-temperature liquid storage tank, a self-pressurized vaporizer and a data communication system (DCS) control device, wherein the medium-pressure low-temperature liquid storage tank is connected with the self-pressurized vaporizer; and a low-temperature liquid conveying pipeline of the medium-pressure low-temperature liquid storage tank is connected with a low-temperature liquid input pipeline of the water bath type vaporizer of the large low-temperature liquid storage tank in parallel, and then is connected with an inlet end of the water bath type vaporizer. The device is capable of rapidly conveying the low-temperature liquid in the medium-pressure low-temperature liquid storage tank into the water bath type vaporizer for vaporization, thus guaranteeing the supply demand of gas; and the device has the advantages of providing enough precooling time for the low-temperature liquid pump, providing continuous vaporization supply for production, meeting the demand of flow peak load regulation.
Description
Technical field
The utility model relates to the device that a kind of metallurgy, chemical industry cryogenic liquide are vaporized fast and dropped into, and belongs to cryogenic liquide vaporising device technical field.
Background technique
Be the continuity that guarantees to produce; The Large Air Separation Devices back-up system is equipped with large-scale low pressure, low temperature liquid storage tank, cryogenic liquid pump, water-bath type vaporizer or empty bath formula vaporizer usually; When temporary derangement and disastershutdown appear in space division system; Can from Large Air Separation Devices back-up system cryogenic liquid tank, liquid be extracted out through cryogenic liquid pump, be sent to vaporizer and vaporize, the gas after the vaporization satisfies the supply requirement of production system to gas products.Because accident condition is accidental, the cryogenic liquid pump stand-by state is normally at the normal temperature state.And when having an accident; Owing to temperature, the cooling requirement of pump itself and the inherent characteristics of cryogenic liquid pump, cause the precooling overlong time of cryogenic liquid pump, cause continuous air feed to interrupt; Influence ordinary production, the interruption of protective gas such as blast furnace nitrogen-sealed etc. also can cause the generation of secondary accident.Simultaneously, if precooling is not thorough, the as easy as rolling off a log cavitation phenomenons that occurs of cryogenic liquid pump also can cause the shake of breathing heavily of cryogenic liquid pump when serious, cause device damage.Therefore, when how to guarantee that space division system breaks down, liquid can be vaporized fast, and satisfying the subsequent production demand is urgent problem.
The model utility content
The utility model technical problem to be solved provides a kind ofly can provide sufficient precooling time for cryogenic liquid pump, guarantee to produce the device that cryogenic liquide that required bog supplies with is continuously vaporized fast and dropped into.
The technological scheme that solves the problems of the technologies described above is:
The device that a kind of cryogenic liquide is vaporized fast and dropped into; It comprises large-scale low-temperature liquid storage vessel, cryogenic liquid pump, water-bath type vaporizer, vaporization gas conveyance conduit; Its improvements are; It has increased forces down geothermal liquid storage tank, a cover from boosting vaporizer and DCS control gear in one; In force down the geothermal liquid storage tank and be connected from boosting vaporizer, in to force down the cryogenic liquide conveyance conduit of geothermal liquid storage tank parallelly connected to the cryogenic liquide input pipeline of water-bath type vaporizer with the cryogenic liquid pump of large-scale low-temperature liquid storage vessel, be linked into the entrance point of water-bath type vaporizer.
The device that above-mentioned cryogenic liquide is vaporized fast and dropped into; In force down and force down geothermal liquid storage tank outlet pneumatic control valve in being equipped with in the cryogenic liquide input pipeline between geothermal liquid storage tank and the water-bath type vaporizer; From boosting vaporizer in force down in the pipeline of geothermal liquid storage tank discharge pressure and be equipped with from the supercharging pneumatic control valve; From the supercharging pneumatic control valve and in force down on the discharge pressure pipeline between the geothermal liquid storage tank and draw pneumatic exhausting pipeline, pneumatic emptying modulating valve is installed on the pneumatic exhausting pipeline.
The utility model breaks down at the production air supply system; Can immediately the cryogenic liquide of middle press liquid storage tank be sent into the water-bath type vaporizer fast vaporizes; Guarantee the gas demand and supply, opened after this moment, liquid pump can fully cool off, carry out follow-up continuous liquid supply vaporization.Therefore have the following advantages:
1, for cryogenic liquid pump is provided the sufficient precooling time;
2, supply with for producing the vaporization that provides continuous;
3, solve flow peak regulation demand;
4, reduce the on-off frequency of cryogenic liquid pump, reduce the accident rate of cryogenic liquid pump.
Description of drawings
Fig. 1 is the structural representation of the utility model.
Mark is following among the figure: large-scale low-temperature liquid storage vessel 1, cryogenic liquid pump 2, water-bath type vaporizer 3, vaporization gas conveyance conduit 4, in force down geothermal liquid storage tank 5, from boosting vaporizer 6, in force down geothermal liquid storage tank outlet pneumatic control valve 7, from supercharging pneumatic control valve 8, pneumatic emptying modulating valve 9.
Embodiment
Show among the figure that the utility model comprises existing large-scale low-temperature liquid storage vessel 1, cryogenic liquid pump 2, water-bath type vaporizer 3 and vaporization gas conveyance conduit 4, force down geothermal liquid storage tank 5 in having increased and from boosting vaporizer 6.
Large-scale low-temperature liquid storage vessel 1 is connected with cryogenic liquid pump 2, and cryogenic liquid pump 2 is transported to cryogenic liquide in the water-bath type vaporizer 3, and water-bath type vaporizer 3 is exported through vaporization gas conveyance conduit 4 bog to the production scene.
Show among the figure; Force down geothermal liquid storage tank 5 and be connected in increasing from boosting vaporizer 6; In to force down the cryogenic liquide conveyance conduit of geothermal liquid storage tank 5 parallelly connected to the cryogenic liquide input pipeline of water-bath type vaporizer 3 with the cryogenic liquid pump 2 of large-scale low-temperature liquid storage vessel 1, be linked into the entrance point of water-bath type vaporizer 3.
In force down and force down geothermal liquid storage tank outlet pneumatic control valve 7 in being equipped with in the cryogenic liquide input pipeline between geothermal liquid storage tank 5 and the water-bath type vaporizer 3; From boosting vaporizer 6 in force down in the pipeline of geothermal liquid storage tank 5 discharge pressures and be equipped with from supercharging pneumatic control valve 8; From supercharging pneumatic control valve 8 and in force down on the discharge pressure pipeline between the geothermal liquid storage tank 5 and draw pneumatic exhausting pipeline, pneumatic emptying modulating valve 9 is installed on the pneumatic exhausting pipeline.
Normal state is forced down geothermal liquid storage tank 5 in by liquid pump cryogenic liquide being squeezed into; In force down geothermal liquid storage tank 5 through the constant pressure for vaporization that increased from boosting vaporizer 6 less than emptying pressure 0.2MPa; Because pressure raises, cryogenic liquide is in supercooled state, and the vaporization rate that forces down geothermal liquid storage tank 5 in having guaranteed effectively drops to minimum; Force down the pressure of geothermal liquid storage tank 5 simultaneously and set the pressure that remains on more than the network security line; Break down in case produce air supply system, can be immediately will in force down geothermal liquid storage tank 5 cryogenic liquide send into water-bath vaporizer 3 fast and vaporize assurance gas demand and supply; This moment, cryogenic liquid pump 2 can fully cool off the back unlatching, carried out follow-up continuous liquid supply vaporization.
An embodiment of the utility model is a low temperature liquid oxygen storage device, and its large-scale low-temperature liquid storage vessel 1 is 2000 cubes of liquid oxygen storage tanks; Cryogenic liquid pump 2 is middle pressure plunger type liquid oxygen pump and the centrifugal liquid oxygen pump of middle pressure, and their compressed capabilities are respectively 30000NM3/h; Water-bath vaporizer 3 is a liquid oxygen water-bath type vaporizer, and its vaporization ability is 30000NM3/h; Vaporization gas conveyance conduit 4 send pipe network for 2.94MPa oxygen; In to force down geothermal liquid storage tank 5 be hydraulic fluid oxygen storage tank in 100 cubes, have good adiabatic heat-insulation effect, can guarantee the cryogenic liquide long term storage, voltage withstand class is identical with follow-up gas pipeline pressure grade; Maximum capacity is suitable for liquid for 3 in water-bath type vaporizer under the increase certainly of boosting vaporizer 6 vaporization Capability Requirement and accident condition, the pressure that increases certainly set require less than in force down the emptying pressure of geothermal liquid storage tank 5 air cavitys setting.
The working procedure of the foregoing description is following:
During normal state; Because fully precooling before the cryogenic liquid pump 2; Could guarantee cryogenic liquid pump 2 after unlatching, eliminate liquid cavitation in the pump, cryogenic liquid pump 2 could be with liquid compression; The normal cryogenic liquid pump 2 of pressing of going up is sent cryogenic liquide into water-bath type vaporizer 3, carries out vaporizing liquid and changes into gas at normal temperature supply subsequent smelting system.
During accident condition, owing to forcing down geothermal liquid storage tank 5 in having increased and, can guaranteeing cryogenic liquid pump 3 is carried out opening after the abundant precooling again from boosting vaporizer 6.In the precooling process of cryogenic liquid pump 3; In force down warm liquid oxygen storage tank 5 because pressure condition in keeping forces down geothermal liquid storage tank outlet pneumatic control valve 7, the quick direct sending water-bath type of cryogenic liquide vaporizer 3 in can opening; Keep the continuous of vaporization air feed; In liquor charging process subsequently, through in boosting vaporizer 6 replenishes 100 cubes, forcing down the air cavity pressure of warm liquid oxygen storage tank 5, the cryogenic liquide rapid Continuous is sent into bath formula vaporizer 3; Guarantee the gas demand and supply, for the sufficient time is won in the precooling of cryogenic liquid pump 3.
Be in middle pressure condition owing to force down warm liquid oxygen storage tank 5 in 100 cubes; Remain basically stable with operation pressure afterwards; Can be at any time with the sending outside of liquid in its storage tank, so this system drops into the function except that having quick vaporization, also can be air supply system and does the small flow peak regulation and use; Avoid the start-stop of frequent cryogenic liquid pump, reduce the rate of fault of cryogenic liquid pump 3.
Claims (2)
1. a cryogenic liquide drops into the device of vaporization fast; It comprises large-scale low-temperature liquid storage vessel (1), cryogenic liquid pump (2), water-bath type vaporizer (3), vaporization gas conveyance conduit (4); It is characterized in that: force down geothermal liquid storage tank (5) during it has increased, from boosting vaporizer (6) and DCS control gear; In force down geothermal liquid storage tank (5) and be connected from boosting vaporizer (6); In to force down the cryogenic liquide conveyance conduit of geothermal liquid storage tank (5) parallelly connected to the cryogenic liquide input pipeline of water-bath type vaporizer (3) with the cryogenic liquid pump (2) of large-scale low-temperature liquid storage vessel (1), be linked into the entrance point of water-bath type vaporizer (3).
2. cryogenic liquide according to claim 1 drops into the device of vaporization fast; It is characterized in that: in force down and force down geothermal liquid storage tank outlet pneumatic control valve (7) in being equipped with in the cryogenic liquide input pipeline between geothermal liquid storage tank (5) and the water-bath type vaporizer (3); From boosting vaporizer (6) in force down in the pipeline of geothermal liquid storage tank (5) discharge pressure and be equipped with from supercharging pneumatic control valve (8); From supercharging pneumatic control valve (8) and in force down on the discharge pressure pipeline between the geothermal liquid storage tank (5) and draw pneumatic exhausting pipeline, pneumatic emptying modulating valve (9) is installed on the pneumatic exhausting pipeline.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200415824U CN202546250U (en) | 2012-02-09 | 2012-02-09 | Rapid low-temperature liquid vaporization device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200415824U CN202546250U (en) | 2012-02-09 | 2012-02-09 | Rapid low-temperature liquid vaporization device |
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| Publication Number | Publication Date |
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| CN202546250U true CN202546250U (en) | 2012-11-21 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012200415824U Expired - Fee Related CN202546250U (en) | 2012-02-09 | 2012-02-09 | Rapid low-temperature liquid vaporization device |
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| CN (1) | CN202546250U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105627638A (en) * | 2015-12-29 | 2016-06-01 | 西安交通大学 | Quick supercooling device for cryogenic propellant |
| 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 |
| CN113324179A (en) * | 2020-02-28 | 2021-08-31 | 河北润丰低温设备有限公司 | Novel low-temperature gas constant-pressure device |
-
2012
- 2012-02-09 CN CN2012200415824U patent/CN202546250U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105627638A (en) * | 2015-12-29 | 2016-06-01 | 西安交通大学 | Quick supercooling device for cryogenic propellant |
| CN105627638B (en) * | 2015-12-29 | 2017-12-26 | 西安交通大学 | A kind of quick supercooling apparatus of cryogenic propellant |
| CN113324179A (en) * | 2020-02-28 | 2021-08-31 | 河北润丰低温设备有限公司 | Novel low-temperature gas constant-pressure device |
| 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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| Date | Code | Title | Description |
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| 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: 20121121 Termination date: 20150209 |
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| EXPY | Termination of patent right or utility model |