CN104121475A - Apparatus for rapidly gasifying liquid nitrogen through circulating water bath, and operating method thereof - Google Patents
Apparatus for rapidly gasifying liquid nitrogen through circulating water bath, and operating method thereof Download PDFInfo
- Publication number
- CN104121475A CN104121475A CN201310145614.4A CN201310145614A CN104121475A CN 104121475 A CN104121475 A CN 104121475A CN 201310145614 A CN201310145614 A CN 201310145614A CN 104121475 A CN104121475 A CN 104121475A
- Authority
- CN
- China
- Prior art keywords
- nitrogen
- liquid
- valve
- liquid nitrogen
- pressure
- 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.)
- Granted
Links
Landscapes
- Separation By Low-Temperature Treatments (AREA)
- Filling Or Discharging Of Gas Storage Vessels (AREA)
Abstract
The invention provides an apparatus for rapidly gasifying liquid nitrogen through circulating water bath, and an operating method thereof. The apparatus comprises a pressure cryogenic liquid tank C1, a boost gasifier C2, a circulating water bath liquid nitrogen gasifier C3, a water cooling tower circulating water collecting pool C4 and a control valve C18; the bottom of the pressure cryogenic liquid tank C1 is connected with the circulating water bath liquid nitrogen gasifier C3 through the control valveC18, liquid nitrogen from the pressure cryogenic liquid tank C1 is heated by flowing circulating water and gasifies, the gasified liquid nitrogen enters a nitrogen pipe network system C5, and the flowing circulating water is from the water cooling tower circulating water collecting pool C4. The apparatus can realize the emergent rapid demands of a nitrogen system, can complete preset operation within 1-2min, gasifies liquid nitrogen to form nitrogen, and sends nitrogen to the nitrogen pipe network, and the liquid tank with a proper volume is selected according to production process requirements to maintain a liquid nitrogen emergency gasifying device within a certain time in order to win precious time to deal with unexpected accidents.
Description
Technical field
The invention belongs to cryogenic liquefying air separation oxygen, nitrogen in industrial production, and gasification liquid nitrogen and compression conveying technology field, particularly a kind of circulator bath liquid nitrogen fast gasifying device and operating method.
Background technique
In large scale industry is produced, the general air separation facility that has supporting scale, isolated nitrogen is transported to pipe network by compression, and for each process units, as purposes such as the emergent displacement of equipment container, seal isolation, conveying material, the continous-stable supply of nitrogen is extremely important.But, in long-term production, owing to being subject to the restriction of certain condition, inevitably exist air separation facility extremely to need decrement operation, the unexpected chain parking of nitrogen compressor, external means to strengthen suddenly the demand of nitrogen etc. situation, for guaranteeing safe production, nitrogen system also must have corresponding counter-measure.
At present, the measure of stablizing nitrogen ductwork pressure has following several: the one, and sky for subsequent use divides process units; The 2nd, high pressure nitrogen knock out drum for subsequent use; The 3rd, the liquid nitrogen gasification system of meeting an urgent need.The first sky for subsequent use divides process units to be applicable to the scheduled overhaul of device; The second high pressure nitrogen knock out drum for subsequent use is applicable to the urgent spray nitrogen at short time important device or position; The emergent vaporization of the third liquid nitrogen is applicable to process the extremely failure problems in several days of dozens of minutes.
The emergent gasification system of above-mentioned the third liquid nitrogen is divided into again: steam water is bathed liquid nitrogen gasification system (referring to Fig. 1) or air bath liquid nitrogen gasification system (referring to Fig. 2).Steam water is bathed liquid nitrogen gasification system flow complexity, complex operation, need the steps such as first precooling liquor pump, boiling water pump, logical steam, generally want consuming time more than 30 minutes, particularly under north of China cold climate in winter condition, startup is more difficult, often occurs the frozen block problem of water system, vapour system, do not have the effect of Contingency supply nitrogen, but its compact equipment, floor space is little, can long-time steady operation once come into operation.Air bath liquid nitrogen gasification system flow is simple, operates relatively simply, but equipment overall volume is huge, and equipment operation is subject to the impact of rainy weather or Northern Part of China sleet in winter climatic change.Existing steam water is bathed liquid nitrogen gasification system will expend a large amount of steam and electric energy; Flow process relative complex, complex operation, is subject to external condition restriction more; Start consuming time relatively long.It is larger that existing air bath liquid nitrogen gasification flow process is affected by local climate.
Summary of the invention
The invention provides a kind of circulator bath liquid nitrogen fast gasifying device and operating method, it is that to have circulation based on air separation facility or other chemical plant installationss be prerequisite.Form (Fig. 3) by parts such as withstand voltage low-temperature liquid tank C1, the vaporizer C2 that boosts, circulator bath vaporizer C3, public cooling water tower circulation water pond C4, adjusting control valve C18; Its flow process is: the liquid nitrogen of withstand voltage low-temperature liquid tank C1 enters into circulator bath vaporizer C3 by adjusting control valve C18, the circulating water heating that liquid nitrogen is flowed and gasify to the nitrogen of 5 DEG C of left and right and then enter into nitrogen pipe network system C5; When stand-by state, the liquid level of withstand voltage low-temperature liquid tank C1 (C7 measures by level meter) will maintain more than 80%, and keep setting pressure (such as 1.0 MPas), to there is sufficient amount of liquid nitrogen maintain sufficiently long the supply of nitrogen time and have certain pressure difference to provide sufficient power that liquid nitrogen is sent; Can realize the emergent quick demand of nitrogen system by the present invention, complete set operation at 1-2 minutes, making liquid nitrogen gasification is that nitrogen is sent into nitrogen public pipeline, can maintain about 90 minutes according to actual needs, realizes the continous-stable supply of nitrogen pipe network.
Withstand voltage low-temperature liquid tank C1 mentioned in this article, is exactly a container of a contain fluid nitrogen, as long as this container can tolerate certain pressure and low temperature, just meets the requirement of technique of the present invention; , therefore omitting not at the present invention's row as for its concrete structure, can be vacuum sandwich spherical container, hydrostatic column; The additional insulation asbestos of monolayered vessel or perlite etc. all do not affect the integrity of flow process of the present invention yet.
The cooling tower of mentioning is herein circulating water cooling tower commonname in industrial production, is also called cooling tower; Circulating water return water temperature is higher or reach 70 degree etc., and 28 degree can be described as cold water.
Circulator bath liquid nitrogen fast gasifying device of the present invention, when its liquid nitrogen can come from the pressure liquid nitrogen of the cold C23 outlet of master of full low pressure air separation facility, is filled into liquid nitrogen in withstand voltage low-temperature liquid tank C1 by valve C12; In filling process, in withstand voltage low-temperature liquid tank C1, the nitrogen of liquid nitrogen gasification does not directly enter in atmosphere, but being back to tower C24 nitrogen on full low pressure air separation facility by valve C11, low temperature nitrogen enters (its pressure is in 0.03 MPa left and right) in the pipeline before main heat exchanger C20, enter in low-pressure nitrogen pipeline through main heat exchanger C20 and valve C25, to reclaim nitrogen product and cold.
Same principle, outside liquid nitrogen tank car also can be filled with liquid nitrogen in liquid nitrogen container by the terminal valve C16 of withstand voltage low-temperature liquid tank C1; In the time adopting outside liquid nitrogen tank car to fill liquid nitrogen to withstand voltage low-temperature liquid tank, also the nitrogen of liquid nitrogen gasification in withstand voltage low-temperature liquid tank can be back to tower C24 nitrogen on full low-pressure nitrogen external compression air separation facility by valve C11 and enter (its pressure is in 0.03 MPa left and right) in the pipeline before main heat exchanger C20, enter in low-pressure nitrogen pipeline through main heat exchanger C20 and valve C25, to reclaim nitrogen product and cold, but liquid nitrogen tank car liquid tank used will sustain enough pressure, generally design working pressure more than 0.2 MPa.
Circulator bath liquid nitrogen fast gasifying device as above, be provided with temperature alarming self-regulated loop in circulator bath liquid nitrogen converter C3 outlet, when temperature is during lower than setting value, turn down adjusting control valve C18, prevented the low-temperature embrittleness problem that low temperature nitrogen brings due to temperature variation sharply outside ductwork tubing.
In another embodiment of the present invention, preferably the one of one group of band finned tube evaporator E2(circulator bath liquid nitrogen converter C3) be arranged in circulating water cooling tower catch basin near circulating water flow exit position and (or be arranged on the water surface in cooling tower pond, make the water slug liquid nitrogen evaporator flowing out from water-dispensing device filler), promote heat exchange to make more circulating water pass through fin crack.
Circulator bath liquid nitrogen fast gasifying device of the present invention, for subsequent use before item by item order inspection examine following situation:
1, the valve before the level meter of liquid nitrogen container C1, pressure gauge, safety anti-explosive film is in normally open;
2, open C11, C12 valve, to liquid fill with in fill liquid level to 80% liquid level more than, then close C11 valve;
Or unload tapping nitrogen joint with outside liquid nitrogen tank car and be connected on the front joint of the 16 valve (C16), then open the 16,11 valves (C16, C11), with outside liquid nitrogen tank car to liquid fill with in fill liquid level to 80% liquid level more than, then close the 16, the 11 valve (C16, C11); Pull down outside liquid nitrogen tank car and unload tapping nitrogen joint;
3, close after C11 valve, in the time that the lower pressure tower of liquid nitrogen container C1 pressure and air separation facility maintains an equal level, then close C12 valve;
4, open liquid nitrogen container C1 bottom boost valve C15, C13 before and after vaporizer C2, by pressure controlled valve C14, liquid nitrogen is filled with to pressure and adjust to setting pressure (such as 1.0 MPas left and right);
5, open C17, C19 valve, at this moment whole system is in standby emergency mode;
6, when outside ductwork C5 nitrogen pressure is during lower than setup pressure value (such as 0.5 MPa), adjusting control valve C18 opens automatically, liquid tank top pressure automatically regulates and maintains in indication range by the vaporizer pressure controlled valve (C14) that boosts, and can tackle calmly burst accident.
The circulating water temperature that the public cooling water tower circulation water of the present invention pond C4 uses is 28 DEG C of left and right.
Emergent liquid nitrogen fast gasifying device disclosed in this invention can be on new designs as an outer part for nitrogen technique when air separation facility in the lump, can eliminate the outer pressure surge for nitrogen pipe network, will greatly improve the supportability of air separation facility, reduces investment cost.
Compared with prior art, advantage of the present invention and effect:
1, the advantage of maximum of the present invention is to start soon, within 1-2 minutes, gets final product complete operation, and making to gasify, nitrogen is grid-connected sends;
2, the present invention is without steam, and without power consumption, energy-saving effect is remarkable, but also the cold of recyclable liquid nitrogen;
3, the present invention substitutes soft water (when steam water-bath) with circulating water and does cooling medium, and because circulating water has certain cycles of concentration, in water, zwitterion is more, and temperature conductivity is better;
4, the freezing point of circulating water involved in the present invention is lower than soft water, and in subzero, the thermal capacity of circulating water is also higher than soft water, and these factors have been strengthened liquid nitrogen heat exchange gasification;
5, circulating water temperature involved in the present invention, 28 DEG C of left and right, is bathed liquid nitrogen gasification soft water used (soft water temperature generally, 10 DEG C of left and right, has water pump pump circulation, if the control of soft water temperature is high in waste steam) higher than steam water;
6, the present invention, due to simple to operate, can frequently come into operation, and can eliminate the outer pressure surge for nitrogen pipe network; If the present invention designs in the lump as an outer part for nitrogen technique when air separation facility on new, will greatly improve the supportability of air separation facility, reduce investment cost.
Brief description of the drawings
Fig. 1 is that the steam water of prior art is bathed liquid nitrogen gasification flow chart.
Fig. 2 is the air bath liquid nitrogen gasification flow chart of prior art.
Fig. 3 is circulator bath liquid nitrogen Quick-gasifying flow chart of the present invention.
Fig. 4 is cooling tower cooling principle schematic diagram.
Fig. 5 is the plan view of liquid nitrogen converter in cooling water tower circulation water catch basin.
Fig. 6 is the sectional drawing of liquid nitrogen converter at cooling water tower circulation water catch basin plan view.
In figure, mark implication is:
A1-cryogenic liquide is filled with; A2-vaporizer boosts; A3-vaporizer inlet valve boosts; A4-vaporizer outlet valve boosts; A5-cryogenic liquide is filled with liquid nitrogen and is sent outward or outer cut-in valve; A6-liquid nitrogen pump inlet valve; A7-liquid nitrogen pump inlet filter; A8-liquid nitrogen pump; A9-liquid nitrogen pump outlet check valve; A10-liquid nitrogen pump outlet safety valve; A11-liquid nitrogen pump outlet valve; A12-low-temperature liquid tank level meter positive valve; A13-cryogenic liquide is filled with level meter; A14-cryogenic liquide is filled with level meter negative pressure valve; A15-cryogenic liquide is filled with atmospheric valve; A16-air separation facility liquid nitrogen enters cryogenic liquide and fills with valve; A17-air separation facility liquid nitrogen pipeline; A18-low-temperature liquid tank safety valve group; A19-steam water-bath vaporizer temperature control steam regulation valve; A20-steam valve; A21-steam line; A22-steam water-bath vaporizer demineralized water is filled with valve; A23-demineralized water pipeline; A24-steam water-bath vaporizer pump circulation water pump; A25-steam water-bath vaporizer tank body; A26-steam water-bath vaporizer condensed water receiving tank level meter; A27-steam water-bath vaporizer condensed water receiving tank; A28-condensed water excavationg pump inlet valve; A29-condensed water excavationg pump; A30-condensed water excavationg pump outlet check valve; A31-condensed water excavationg pump outlet valve; A32-condensed water discharge pipe road; A33-gasification nitrogen pipeline; A34-gasification nitrogen outlet valve; A35-steam water-bath vaporizer gasification nitrogen safety valve; A36-steam water-bath vaporizer liquid nitrogen heat exchanger coiled pipe;
B1-cryogenic liquide is filled with; B2-vaporizer boosts; B3-vaporizer inlet valve boosts; B4-cryogenic liquide is filled with liquid nitrogen and is sent outward or outer cut-in valve; B5-low-temperature liquid tank level meter positive valve; B6-cryogenic liquide is filled with level meter; B7-cryogenic liquide is filled with level meter negative pressure valve; B8-cryogenic liquide is filled with atmospheric valve; B9-air separation facility liquid nitrogen enters cryogenic liquide and fills with valve; B10-low-temperature liquid tank safety valve group; B11-air separation facility liquid nitrogen pipeline; B12-vaporizer outlet valve boosts; B13-liquid nitrogen pump inlet valve; B14-liquid nitrogen pump inlet filter; B15-liquid nitrogen pump; B16-liquid nitrogen pump outlet check valve; B17-liquid nitrogen pump outlet safety valve; B18-liquid nitrogen pump outlet valve; B19-air bath vaporizer; B20-gasification nitrogen outlet valve; B21-outside ductwork nitrogen pipeline;
C1-withstand voltage cryogenic liquide is filled with; C2-vaporizer boosts; C3-circulator bath liquid nitrogen converter; C4-public cooling water tower circulation water catch basin; C5-pipe network nitrogen pipeline; C6-withstand voltage low-temperature liquid tank level meter positive valve; C7-withstand voltage cryogenic liquide is filled with level meter; C8-withstand voltage cryogenic liquide is filled with level meter negative pressure valve; C9-withstand voltage low-temperature liquid tank safety valve group; C10-withstand voltage cryogenic liquide is filled with atmospheric valve; C11-gasification low temperature nitrogen returns to air separation facility nitrogen and enters main heat exchanger preceding pipeline valve; C12-air separation facility liquid nitrogen go out main cold enter withstand voltage cryogenic liquide fill with valve; C13-vaporizer outlet valve boosts; C14-vaporizer pressure the regulating and controlling of boosting valve; C15-vaporizer inlet valve boosts; C16-withstand voltage cryogenic liquide is filled with liquid nitrogen and is sent outward or outer cut-in valve; C17-circulator bath liquid nitrogen converter inlet valve; C18-circulator bath liquid nitrogen converter adjusting control valve; C19-gasification nitrogen outlet valve; C20-air separation facility main heat exchanger; C21-air separation facility subcooler; Tower under C22-air separation facility; C23-Main Condenser Associated with Air Separation; Tower on C24-air separation facility; C25-air separation facility nitrogen cooling box valve; C26-Main Condenser Associated with Air Separation liquid nitrogen removes tower valve; C27-air separation facility ice chest;
D1-air duct; D2-fan; D3-water-dispensing device; D4-nozzle; D5-filler; D6-back-water valve (BWV); D7-cooling tower framework; D9-catch basin liquid level; D10-ground; D11-cold dry air; D12-cold water falls; D13-damp-heat air is discharged;
E1-pool wall catchments; The outlet of E3-catch basin; The signal of E4-current;
F4-vaporizer fixed support; F5-bracket fixing bolt; F8-catch basin ground.
Embodiment
Taking 20000 cubic metres of nitrogen of outer confession per hour, nitrogen pipe network normal pressure, circulator bath liquid nitrogen fast gasifying device is described as 0.5 MPa as example below.Choosing withstand voltage low temperature liquid nitrogen vacuum tank working pressure grade is 50 cubic metres of 1.0 MPas, actual volumes, by equipment according to the installation in position of flow process shown in Fig. 3.Suppose that full low pressure air separation facility production is normal, by the circulator bath liquid nitrogen fast gasifying device valve Close All of ice chest C27 outside, then carry out according to the following steps:
1, open the valve before the level meter, pressure gauge, safety anti-explosive film of liquid nitrogen container C1;
2, open C11, C12 valve, more than filling with and fill liquid to 80% liquid level in C1 to liquid;
3, first close C11 valve, in the time that the lower pressure tower of liquid nitrogen container C1 pressure and air separation facility maintains an equal level, then close C12 valve;
4, open liquid nitrogen container C1 bottom boost valve C15, C13 before and after vaporizer, by pressure controlled valve C14, liquid nitrogen is filled with to C1 pressure and adjust to 0.8 MPa left and right;
5, open C17, C19 valve, at this moment whole system is in stand-by state;
6, when outside ductwork C5 nitrogen pressure is lower than in setting when 0.5 MPa, adjusting control valve C18 opens automatically, and the pressure controlled valve C14 of the vaporizer C2 that boosts of liquid tank bottom also regulates automatically
,with maintain liquid fill with top pressure be stabilized in indication range, liquid fill with in liquid can maintain about 90 minutes, at this moment between section in can tackle calmly burst accident;
7, in the time of implementation step 7, in the time that outside ductwork C5 nitrogen pressure is low to moderate 0.46 MPa, the vaporizer valve C15 that boosts of closing liquid pot bottom, open C12 valve and maintain the top pressure that liquid is filled with, the cold that can more reclaim liquid nitrogen is like this in circulating water, and liquid is filled with interior liquid and can be maintained longer service time simultaneously.
The above, be only preferred embodiments of the present invention, and the interest field that the present invention advocates is not limited to this.The present invention also can have other various embodiments; in the situation that not deviating from spirit of the present invention and essence thereof; those skilled in the art are when making according to the present invention various corresponding changes and distortion, but these changes and distortion all should belong to the protection domain of the appended claim of the present invention.
Claims (10)
1. a circulator bath liquid nitrogen fast gasifying device, comprises withstand voltage low-temperature liquid tank (C1), the vaporizer that boosts (C2), circulator bath liquid nitrogen converter (C3), cooling water tower circulation water catch basin (C4) and adjusting control valve (C18); Withstand voltage low-temperature liquid tank (C1) bottom is connected with circulator bath liquid nitrogen converter (C3) by adjusting control valve (C18), the circulating water heating being flowed from the liquid nitrogen of withstand voltage low-temperature liquid tank (C1) and gasify and enter into nitrogen pipe network system (C5), mobile circulating water is from cooling water tower circulation water catch basin (C4).
2. circulator bath liquid nitrogen fast gasifying device as claimed in claim 1, the liquid nitrogen entrance at withstand voltage low-temperature liquid tank (C1) top is connected with master cold (C23) liquid nitrogen pipes of full low pressure air separation facility by the 12 valve (C12), and the gasification nitrogen exhaust port of withstand voltage low-temperature liquid tank (C1) is connected by the 11 valve (C11) nitrogen pipeline front with the main heat exchanger (C20) at tower (C24) top on full low pressure air separation facility.
3. circulator bath liquid nitrogen fast gasifying device as claimed in claim 1, withstand voltage low-temperature liquid tank (C1) is connected with outside liquid nitrogen tank car by the 16 valve (C16).
4. circulator bath liquid nitrogen fast gasifying device as claimed in claim 3, the gasification nitrogen exhaust port of withstand voltage low-temperature liquid tank (C1) is connected by the 11 valve (C11) nitrogen pipeline front with the main heat exchanger (C20) at tower (C24) top on full low pressure air separation facility.
5. the circulator bath liquid nitrogen fast gasifying device as described in as arbitrary in claim 1-4, is provided with temperature alarming self-regulated loop in circulator bath liquid nitrogen converter (C3) outlet, when temperature is during lower than setting value, turns down adjusting control valve (C18).
6. the circulator bath liquid nitrogen fast gasifying device as described in as arbitrary in claim 1-5, circulator bath liquid nitrogen converter (C3) will be arranged in the position of cooling water tower circulation water catch basin (C4) near circulating water catch basin outflow opening, or be arranged on the water surface of cooling water tower circulation water catch basin, make the water sprinkle flowing out from cooling tower water-dispensing device filler on circulator bath liquid nitrogen evaporator surface.
7. an operating method for circulator bath liquid nitrogen fast gasifying device as described in as arbitrary in claim 1-6, it comprises the following steps:
(1) open the valve before the level meter, pressure gauge, safety anti-explosive film of withstand voltage low-temperature liquid tank (C1);
(2) open the 11,12 valves (C11, C12), more than filling with and fill liquid level to 80% liquid level in (C1) to liquid, then close the 11 valve (C11);
Or unload tapping nitrogen joint with outside liquid nitrogen tank car and be connected on the front joint of the 16 valve (C16), then open the 16,11 valves (C16, C11), more than filling with and fill liquid level to 80% liquid level in (C1) to liquid with outside liquid nitrogen tank car, then close the 16, the 11 valve (C16, C11); Pull down outside liquid nitrogen tank car and unload tapping nitrogen joint;
(3) close after the 11 valve (C11), in the time that the lower pressure tower of liquid tank (C1) pressure and full low pressure air separation facility maintains an equal level, then close the 12 valve (C12);
(4) open liquid tank (C1) the bottom valves (C15, C13) before and after vaporizer (C2) that boost, liquid is filled with to (C1) pressure by pressure controlled valve (C14) and adjust to the first setting pressure, for example 1.0 MPas;
(5) open the 17,19 valves (C17, C19), at this moment whole system is in standby emergency mode;
(6) when nitrogen pipe network pipeline (C5) nitrogen pressure is lower than the second setup pressure value, while being 0.5 MPa such as setting pressure, the 18 adjusting control valve (C18) is opened automatically
,liquid tank (C1) pressure automatically regulates and maintains in indication range by the pressure controlled valve (C14) of the vaporizer that boosts (C2).
8. operating method as claimed in claim 7, maintains the interior liquid level of liquid tank more than 80% under stand-by state, the setting pressure in liquid tank (C1) is than high 0.2-0.5 MPa of nitrogen pipe network pipeline (C5) normal pressure.
9. operating method as claimed in claim 7, when nitrogen pipe network pipeline nitrogen pressure lower than air separation facility under when pressure tower, can open the 12 valve (C12) and carry out liquid nitrogen and fill, and close the front valve (C15) of the vaporizer that boosts (C2).
10. operating method as claimed in claim 7, in the time of implementation step 6, when nitrogen pipe network pipeline (C5) nitrogen pressure is low to moderate the 3rd setup pressure value, for example, when 0.46 MPa, the front valve (C15) of the vaporizer that boosts (C2) of closing liquid tank (C1) bottom, open the pressure that the 12 valve (C12) maintains liquid filling (C1), the cold that can more reclaim liquid nitrogen is like this in circulating water, and liquid is filled with interior liquid and can be maintained longer service time simultaneously.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310145614.4A CN104121475B (en) | 2013-04-25 | 2013-04-25 | A kind of circulator bath liquid nitrogen fast gasifying device and operational approach |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310145614.4A CN104121475B (en) | 2013-04-25 | 2013-04-25 | A kind of circulator bath liquid nitrogen fast gasifying device and operational approach |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104121475A true CN104121475A (en) | 2014-10-29 |
| CN104121475B CN104121475B (en) | 2016-12-28 |
Family
ID=51767012
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310145614.4A Active CN104121475B (en) | 2013-04-25 | 2013-04-25 | A kind of circulator bath liquid nitrogen fast gasifying device and operational approach |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104121475B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104613311A (en) * | 2015-02-06 | 2015-05-13 | 北京石油化工工程有限公司 | Special nitrogen gas supplying device and special nitrogen gas supplying method for reforming catalyst regeneration |
| CN105508873A (en) * | 2016-02-18 | 2016-04-20 | 北京航天发射技术研究所 | Low-temperature vessel and vaporizer self-pressurization system and method |
| CN106855451A (en) * | 2015-12-09 | 2017-06-16 | 上海华林工业气体有限公司 | A kind of device and method that airtight test is carried out using liquid nitrogen supercharging gasification |
| CN115183147A (en) * | 2022-06-21 | 2022-10-14 | 浙江金象科技有限公司 | Intelligent gasifier and gas supply system thereof |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004163003A (en) * | 2002-11-13 | 2004-06-10 | Nippon Sanso Corp | Control method of air separator |
| CN101476806A (en) * | 2009-01-24 | 2009-07-08 | 中国电子系统工程第二建设有限公司 | Low-temperature liquid vaporization cooling capacity recovery utilization system |
| JP2010025513A (en) * | 2008-07-24 | 2010-02-04 | Taiyo Nippon Sanso Corp | Method and device for manufacturing nitrogen |
| CN202133299U (en) * | 2011-06-08 | 2012-02-01 | 鞍钢股份有限公司 | Multi-cold-source circulating water cooling tower |
| CN102506559A (en) * | 2011-09-28 | 2012-06-20 | 开封东京空分集团有限公司 | Air-separation process for preparing high-purity nitrogen by multi-segment rectification |
| CN102589823A (en) * | 2012-02-16 | 2012-07-18 | 新兴能源装备股份有限公司 | Airtightness test and nitrogen replacement device used for high-pressure air cylinder |
| CN202501191U (en) * | 2012-03-16 | 2012-10-24 | 合肥巨网工业气体有限公司 | Water bath type energy-saving liquid nitrogen vaporizing system |
| CN202692309U (en) * | 2012-08-02 | 2013-01-23 | 上海宝钢气体有限公司 | Water-bath type liquid nitrogen cold energy recovery device |
-
2013
- 2013-04-25 CN CN201310145614.4A patent/CN104121475B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004163003A (en) * | 2002-11-13 | 2004-06-10 | Nippon Sanso Corp | Control method of air separator |
| JP2010025513A (en) * | 2008-07-24 | 2010-02-04 | Taiyo Nippon Sanso Corp | Method and device for manufacturing nitrogen |
| CN101476806A (en) * | 2009-01-24 | 2009-07-08 | 中国电子系统工程第二建设有限公司 | Low-temperature liquid vaporization cooling capacity recovery utilization system |
| CN202133299U (en) * | 2011-06-08 | 2012-02-01 | 鞍钢股份有限公司 | Multi-cold-source circulating water cooling tower |
| CN102506559A (en) * | 2011-09-28 | 2012-06-20 | 开封东京空分集团有限公司 | Air-separation process for preparing high-purity nitrogen by multi-segment rectification |
| CN102589823A (en) * | 2012-02-16 | 2012-07-18 | 新兴能源装备股份有限公司 | Airtightness test and nitrogen replacement device used for high-pressure air cylinder |
| CN202501191U (en) * | 2012-03-16 | 2012-10-24 | 合肥巨网工业气体有限公司 | Water bath type energy-saving liquid nitrogen vaporizing system |
| CN202692309U (en) * | 2012-08-02 | 2013-01-23 | 上海宝钢气体有限公司 | Water-bath type liquid nitrogen cold energy recovery device |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104613311A (en) * | 2015-02-06 | 2015-05-13 | 北京石油化工工程有限公司 | Special nitrogen gas supplying device and special nitrogen gas supplying method for reforming catalyst regeneration |
| CN106855451A (en) * | 2015-12-09 | 2017-06-16 | 上海华林工业气体有限公司 | A kind of device and method that airtight test is carried out using liquid nitrogen supercharging gasification |
| CN105508873A (en) * | 2016-02-18 | 2016-04-20 | 北京航天发射技术研究所 | Low-temperature vessel and vaporizer self-pressurization system and method |
| CN105508873B (en) * | 2016-02-18 | 2018-10-12 | 北京航天发射技术研究所 | A kind of low-temperature (low temperature) vessel vaporizer is from pressure charging system and method |
| CN115183147A (en) * | 2022-06-21 | 2022-10-14 | 浙江金象科技有限公司 | Intelligent gasifier and gas supply system thereof |
| CN115183147B (en) * | 2022-06-21 | 2023-06-27 | 浙江金象科技有限公司 | Intelligent gasifier and air supply system thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104121475B (en) | 2016-12-28 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104121475A (en) | Apparatus for rapidly gasifying liquid nitrogen through circulating water bath, and operating method thereof | |
| CN202330410U (en) | Multifunctional test box for walk-in type frozen soil roadbed model | |
| CN204704606U (en) | A kind of liquefied natural gas (LNG) tank based on liquid nitrogen cold regulation | |
| CN206656625U (en) | A kind of shell-and-tube heat exchanger for heated by natural gas of band leakage warning function | |
| CN109028589A (en) | Water-drainage antifreezing system, electrical equipment and water discharge method | |
| CN116045262A (en) | High-pressure heat storage system for generating industrial steam and application method thereof | |
| CN205690489U (en) | Direct-connected big temperature difference heat-exchanger rig | |
| CN104611080B (en) | A kind of gas hydrate slurry liquid integrated utilization device and method | |
| CN106696067A (en) | Temperature and humidity control device and standard curing box | |
| CN206056079U (en) | 5 DEG C of recirculated cooling water devices in for cryogenic distillation apparatus | |
| CN203248988U (en) | Vapor zero discharge treatment system of LNG receiving station | |
| CN201281224Y (en) | High-pressure compressed gas discharging device | |
| CN203248995U (en) | LNG receiving station low energy consumption evaporation zero release processing system | |
| CN116447510A (en) | Device system and method for recycling liquid hydrogen gasification cold energy | |
| CN207145971U (en) | A kind of integrated LNG gasification sled | |
| CN214744950U (en) | Long-distance LNG unloading pipeline system | |
| CN109654577A (en) | Distributed heating network energy storage pressure stabilizing system | |
| CN205102505U (en) | Natural gas liquefaction stores peak regulation device | |
| CN212104327U (en) | Cold region tunnel water fire control freeze-proof device | |
| CN206770966U (en) | Petroleum vapor recovery floating ball one-way valve and device for recovering oil and gas | |
| RU2682237C1 (en) | Individual heating unit of sub-atmospheric heating system | |
| CN103234117B (en) | A kind of LNG receiving station low energy consumption boil-off gas zero-discharge treatment system | |
| CN205369388U (en) | Be applicable to high and cold high -altitude area passive form heating water supply equipment | |
| CN201173568Y (en) | Static state opening dynamic state enclosing water storage type water heater | |
| CN216472329U (en) | Deuterium-depleted water wastewater recycling device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |