CN105403076A - Liquid nitrogen gasification cold energy recycling system - Google Patents
Liquid nitrogen gasification cold energy recycling system Download PDFInfo
- Publication number
- CN105403076A CN105403076A CN201510892773.XA CN201510892773A CN105403076A CN 105403076 A CN105403076 A CN 105403076A CN 201510892773 A CN201510892773 A CN 201510892773A CN 105403076 A CN105403076 A CN 105403076A
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- China
- Prior art keywords
- liquid nitrogen
- cold energy
- cooling water
- energy recycling
- outlet
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
- F28D7/00—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall
- F28D7/005—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits for only one medium being tubes having bent portions or being assembled from bent tubes or being tubes having a toroidal configuration
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D3/00—Devices using other cold materials; Devices using cold-storage bodies
- F25D3/10—Devices using other cold materials; Devices using cold-storage bodies using liquefied gases, e.g. liquid air
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Separation By Low-Temperature Treatments (AREA)
Abstract
The invention discloses a liquid nitrogen gasification cold energy recycling system. The liquid nitrogen gasification cold energy recycling system comprises power refrigeration equipment, a reaction kettle, a liquid nitrogen storage tank, a cooling water storage tank, a vaporizer and a liquid nitrogen cold energy recycling bin full of cooling water, wherein a liquid nitrogen inlet, a nitrogen outlet, a cooling water inlet and a cooling water outlet are respectively formed in side walls of a box body of the liquid nitrogen cold energy recycling bin; the vaporizer is arranged in the liquid nitrogen cold energy recycling bin; a liquid inlet of the vaporizer is communicated with the liquid nitrogen inlet of the liquid nitrogen cold energy recycling bin; a gas outlet of the vaporizer is communicated with the nitrogen outlet of the liquid nitrogen cold energy recycling bin; the liquid nitrogen storage tank is communicated with the liquid nitrogen inlet of the liquid nitrogen cold energy recycling bin; the nitrogen outlet of the liquid nitrogen cold energy recycling bin is communicated with the reaction kettle; the cooling water storage tank is communicated with the cooling water inlet of the liquid nitrogen cold energy recycling bin; and the cooling water outlet of the liquid nitrogen cold energy recycling bin is communicated with power refrigeration equipment. The liquid nitrogen gasification cold energy recycling system has the advantages that cold energy generated during gasification of liquid nitrogen is recycled fully, safe and smooth production is guaranteed, and the running cost of the power refrigeration equipment is reduced.
Description
Technical field
The present invention relates to liquid nitrogen gasification cold recovery system.
Background technology
Nitrogen is general in chemical process to be participated in as protective gas and protects chemical reaction.Nitrogen is that liquid nitrogen first gasifies through the vaporizer be exposed in air, then is delivered to each reactor by conveyance conduit after reduced pressure treatment.Because liquid nitrogen gasifies the heat of mainly suction-type carbureter outside air in vaporizer, bloom can be formed in evaporator surface under the effect of the cold causing the water in air to produce when liquid nitrogen gasification, liquid nitrogen is very easily caused to gasify not exclusively in vaporizer, endothermic gasification can be continued after the incomplete nitrogen of gasification flows to conveyance conduit, thus conveyance conduit is run at very low temperature, not only substantially reduce the service life of conveyance conduit, add maintenance cost, and be that the safety of producing carries out having buried hidden danger smoothly.
Summary of the invention
The object of this invention is to provide a kind of liquid nitrogen gasification cold recovery system of the cold produced when can recycle liquid nitrogen gasification.
For achieving the above object, present invention employs following technical scheme: described liquid nitrogen gasification cold recovery system, comprise power refrigeration equipment, reactor, liquid nitrogen tank, cooling water storage tank, the liquid nitrogen cold recovery case of vaporizer and the full cooling water of storage, the wall box of liquid nitrogen cold recovery case is respectively arranged with liquid nitrogen import, nitrogen outlet, cooling water inlet and coolant outlet, described vaporizer is arranged in liquid nitrogen cold recovery case, the inlet of vaporizer is connected with the liquid nitrogen import of liquid nitrogen cold recovery case, the gas outlet of vaporizer is connected with the nitrogen outlet of liquid nitrogen cold recovery case, described liquid nitrogen tank is connected by the liquid nitrogen import of input duct with liquid nitrogen cold recovery case, the nitrogen outlet of liquid nitrogen cold recovery case is connected with reactor by outlet pipe, described cooling water storage tank is connected by the cooling water inlet of inlet channel with liquid nitrogen cold recovery case, the coolant outlet of liquid nitrogen cold recovery case is connected with power refrigeration equipment by outlet conduit.
Further, aforesaid liquid nitrogen gasification cold recovery system, wherein: on inlet channel, be provided with delivery pump.
By the enforcement of technique scheme, the invention has the beneficial effects as follows: being used for by the cold produced during liquid nitrogen gasification lowering the temperature flows into the cooling water of power refrigeration equipment, on the one hand, due to the cold produced when fully having recycled liquid nitrogen gasification, evaporator surface can not tie bloom, make liquid nitrogen can gasify completely after vaporizer, not only ensure that the safety of production is carried out smoothly, and the pipeline for supplying nitrogen can not be run at very low temperature, substantially prolongs the service life of pipeline, reduce the production maintenance cost of enterprise; On the other hand, the cooling water after cooling can reduce the operating cost of power refrigeration equipment, thus save electric energy after flowing into power refrigeration equipment.
Accompanying drawing explanation
Fig. 1 is the operation principle schematic diagram of liquid nitrogen gasification cold recovery system of the present invention.
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, the invention will be further described.
As shown in Figure 1, described liquid nitrogen gasification cold recovery system, comprise power refrigeration equipment 1, reactor 2, liquid nitrogen tank 3, cooling water storage tank 4, the liquid nitrogen cold recovery case 6 of vaporizer 5 and the full cooling water of storage, the wall box of liquid nitrogen cold recovery case 6 is respectively arranged with liquid nitrogen import, nitrogen outlet, cooling water inlet and coolant outlet, described vaporizer 5 is arranged in liquid nitrogen cold recovery case 6, the inlet of vaporizer 5 is connected with the liquid nitrogen import of liquid nitrogen cold recovery case 6, the gas outlet of vaporizer 5 is connected with the nitrogen outlet of liquid nitrogen cold recovery case 6, described liquid nitrogen tank 3 is connected by the liquid nitrogen import of input duct 7 with liquid nitrogen cold recovery case 6, the nitrogen outlet of liquid nitrogen cold recovery case 6 is connected with reactor 2 by outlet pipe 8, described cooling water storage tank 4 is connected by the cooling water inlet of inlet channel 9 with liquid nitrogen cold recovery case 6, the coolant outlet of liquid nitrogen cold recovery case 6 is connected with power refrigeration equipment 1 by outlet conduit 10, in the present embodiment, inlet channel 9 is provided with delivery pump 11, the flowing velocity of cooling water can be accelerated so further, improve production security,
Operation principle of the present invention is as follows:
Liquid nitrogen in liquid nitrogen tank 3 enters in the vaporizer 5 in liquid nitrogen cold recovery case 6 through input duct 7, gasify completely through vaporizer 5 and enter reactor 2 from outlet pipe 8, now the liquid nitrogen cold that endothermic gasification produces in vaporizer 5 can be absorbed by the cooling water in liquid nitrogen cold recovery case 6, cooling water is lowered the temperature after absorbing the cold of liquid nitrogen gasification generation, and power refrigeration equipment 1 is entered through outlet conduit under the effect of delivery pump 11, cooling water constantly can be replenished liquid nitrogen cold recovery case 6 by inlet channel 9 by cooling water storage tank 4 simultaneously, thus ensure the abundant recycling to the cold that liquid nitrogen gasification produces, advantage of the present invention is: being used for by the cold produced during liquid nitrogen gasification lowering the temperature flows into the cooling water of power refrigeration equipment, on the one hand, due to the cold produced when fully having recycled liquid nitrogen gasification, evaporator surface can not tie bloom, liquid nitrogen can be gasified completely after vaporizer, not only ensure that the safety of production is carried out smoothly, and the pipeline for supplying nitrogen can not be run at very low temperature, substantially prolongs the service life of pipeline, reduce the production maintenance cost of enterprise, on the other hand, the cooling water after cooling can reduce the operating cost of power refrigeration equipment, thus save electric energy after flowing into power refrigeration equipment.
Claims (2)
1. liquid nitrogen gasification cold recovery system, it is characterized in that: comprise power refrigeration equipment, reactor, liquid nitrogen tank, cooling water storage tank, the liquid nitrogen cold recovery case of vaporizer and the full cooling water of storage, the wall box of liquid nitrogen cold recovery case is respectively arranged with liquid nitrogen import, nitrogen outlet, cooling water inlet and coolant outlet, described vaporizer is arranged in liquid nitrogen cold recovery case, the inlet of vaporizer is connected with the liquid nitrogen import of liquid nitrogen cold recovery case, the gas outlet of vaporizer is connected with the nitrogen outlet of liquid nitrogen cold recovery case, described liquid nitrogen tank is connected by the liquid nitrogen import of input duct with liquid nitrogen cold recovery case, the nitrogen outlet of liquid nitrogen cold recovery case is connected with reactor by outlet pipe, described cooling water storage tank is connected by the cooling water inlet of inlet channel with liquid nitrogen cold recovery case, the coolant outlet of liquid nitrogen cold recovery case is connected with power refrigeration equipment by outlet conduit.
2. liquid nitrogen gasification cold recovery system according to claim 1, is characterized in that: on inlet channel, be provided with delivery pump.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510892773.XA CN105403076A (en) | 2015-12-08 | 2015-12-08 | Liquid nitrogen gasification cold energy recycling system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510892773.XA CN105403076A (en) | 2015-12-08 | 2015-12-08 | Liquid nitrogen gasification cold energy recycling system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105403076A true CN105403076A (en) | 2016-03-16 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510892773.XA Pending CN105403076A (en) | 2015-12-08 | 2015-12-08 | Liquid nitrogen gasification cold energy recycling system |
Country Status (1)
| Country | Link |
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| CN (1) | CN105403076A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109847811A (en) * | 2019-02-26 | 2019-06-07 | 重庆平伟实业股份有限公司 | Utilize the semiconductor devices cryogenic test equipment of liquid nitrogen gasification process cooling capacity |
| CN110094207A (en) * | 2019-05-23 | 2019-08-06 | 王海霖 | A kind of artificial stratum freezing system and method for low temperature nitrogen circularly cooling |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201618902U (en) * | 2010-02-05 | 2010-11-03 | 中国北方车辆研究所 | Liquid nitrogen gasification circulating water cooling device |
| CN203980706U (en) * | 2014-07-03 | 2014-12-03 | 扬州鑫晶光伏科技有限公司 | A kind of liquid nitrogen gasification refrigeration system |
| CN205245839U (en) * | 2015-12-08 | 2016-05-18 | 张家港市三联化工科技有限公司 | Cold volume recovery system of liquid nitrogen gasification |
-
2015
- 2015-12-08 CN CN201510892773.XA patent/CN105403076A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201618902U (en) * | 2010-02-05 | 2010-11-03 | 中国北方车辆研究所 | Liquid nitrogen gasification circulating water cooling device |
| CN203980706U (en) * | 2014-07-03 | 2014-12-03 | 扬州鑫晶光伏科技有限公司 | A kind of liquid nitrogen gasification refrigeration system |
| CN205245839U (en) * | 2015-12-08 | 2016-05-18 | 张家港市三联化工科技有限公司 | Cold volume recovery system of liquid nitrogen gasification |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109847811A (en) * | 2019-02-26 | 2019-06-07 | 重庆平伟实业股份有限公司 | Utilize the semiconductor devices cryogenic test equipment of liquid nitrogen gasification process cooling capacity |
| CN110094207A (en) * | 2019-05-23 | 2019-08-06 | 王海霖 | A kind of artificial stratum freezing system and method for low temperature nitrogen circularly cooling |
| CN110094207B (en) * | 2019-05-23 | 2020-07-17 | 王海霖 | Artificial stratum freezing system and method for low-temperature nitrogen circulating refrigeration |
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20160316 |
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| RJ01 | Rejection of invention patent application after publication |