CN203586861U - Liquid nitrogen cooling capacity recycling system - Google Patents
Liquid nitrogen cooling capacity recycling system Download PDFInfo
- Publication number
- CN203586861U CN203586861U CN201320628805.1U CN201320628805U CN203586861U CN 203586861 U CN203586861 U CN 203586861U CN 201320628805 U CN201320628805 U CN 201320628805U CN 203586861 U CN203586861 U CN 203586861U
- Authority
- CN
- China
- Prior art keywords
- water
- cooling tower
- pipe
- liquid nitrogen
- circulating water
- 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.)
- Expired - Lifetime
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- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 title claims abstract description 93
- 238000001816 cooling Methods 0.000 title claims abstract description 54
- 229910052757 nitrogen Inorganic materials 0.000 title claims abstract description 47
- 239000007788 liquid Substances 0.000 title claims abstract description 21
- 238000004064 recycling Methods 0.000 title abstract 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 68
- 239000007789 gas Substances 0.000 claims abstract description 13
- 238000011084 recovery Methods 0.000 claims description 10
- 239000007921 spray Substances 0.000 claims description 10
- 239000003795 chemical substances by application Substances 0.000 claims description 8
- 229920002635 polyurethane Polymers 0.000 claims description 8
- 239000004814 polyurethane Substances 0.000 claims description 8
- 239000000498 cooling water Substances 0.000 abstract description 7
- 238000009423 ventilation Methods 0.000 abstract 3
- 238000005507 spraying Methods 0.000 abstract 2
- 230000003321 amplification Effects 0.000 description 2
- 238000003199 nucleic acid amplification method Methods 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000003203 everyday effect Effects 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
Images
Abstract
The utility model discloses a liquid nitrogen cooling capacity recycling system. The liquid nitrogen cooling capacity recycling system comprises a liquid nitrogen storage tank and a circulating water tank, wherein a water cooling tower is arranged in the middle of the top of the circulating water tank; a water inlet is formed in the bottom of the circulating water tank and is located on the circulating water tank; a water pipe is further arranged between the circulating water tank and the water cooling tower; one end of the water pipe is communicated with the bottom of the side edge of the circulating water tank and the other end of the water pipe stretches into the upper part of the water cooling tower and is provided with a plurality of spraying heads; a plurality of cooling fans are arranged on the inner side wall of the water cooling tower below the spraying heads; a water pump and a heat exchanger are arranged on the water pipe; a ventilation pipe is connected between the liquid nitrogen storage tank and the water cooling tower; one end of the ventilation pipe is communicated with the upper part of the liquid nitrogen storage tank and the other end of the ventilation pipe stretches into the lower part of the water cooling tower and is provided with a gas outlet coiled pipe; and a plurality of gas outlet holes which are uniformly distributed are formed in the top of the gas outlet coiled pipe. The liquid nitrogen cooling capacity recycling system can be used for recycling volatilized low-temperature nitrogen and avoiding wasting resources, but can also be used for cooling water in the water cooling tower; the liquid nitrogen cooling capacity recycling system is mainly used for recycling the volatilized low-temperature nitrogen in the liquid nitrogen storage tank.
Description
Technical field
The utility model relates to cryogenic gas cold recovery technical field, especially a kind of liquid nitrogen cold recovery system.
Background technology
At present, in empty branch trade, low temperature liquid nitrogen holding vessel is the container as stored nitrogen, and stored liquid nitrogen is subzero 180 degrees Celsius of following liquid.Even if it is very adiabatic that low temperature liquid nitrogen holding vessel has Insulation to accomplish, cause all the time having volatility nitrogen to produce, the gas temperature of these volatility nitrogen is also subzero below 180 degrees Celsius, the volatility nitrogen producing generally must discharge by the exhaust-valve at holding vessel top, with the pressure of controlling in holding vessel, guarantees safety.According to statistics, the nitrogen storage tank of every 1000 cubic metres almost will be discharged the oxygen of 2000 cubes every day, not only causes very large energy loss, and this strand of cold also to cause drain to freeze serious, become a potential safety hazard of storage tank.
Nitrogen generally obtains by air separation, and in the equipment of air separation, heat exchanger is absolutely necessary.And heat exchanger is mainly absorbed heat and is carried out work by cooling water circulation.Traditional cooling water supply unit has circulating water pool, and circulating water pool crown center is equipped with water-cooling tower, and water-cooling tower bottom is positioned at and on circulating water pool, has water inlet.Between circulating water pool and water-cooling tower, be also connected with a water pipe, water pipe one end is communicated with circulating water pool side bottom, the other end puts in water-cooling tower top again and is fitted with some spray heads after being communicated with heat exchanger, spray head below is positioned at is equipped with some cooling fans on water-cooling tower madial wall, and water pump is also housed on water pipe.When producing nitrogen, this traditional cooling water supply unit is mainly lowered the temperature water by cooling fan, and efficiency is lower.
Therefore, designing a kind of liquid nitrogen cold recovery system that can simultaneously solve above-mentioned two problems is extremely necessary.
Summary of the invention
The purpose of this utility model will be improved for above-mentioned the deficiencies in the prior art exactly, a kind of liquid nitrogen cold recovery system that can overcome preferably above-mentioned defect is provided, this recovery system can prevent that the low temperature nitrogen of volatilization from slatterning, and can improve again the cooling effectiveness of cooling water supply unit.
Concrete scheme of the present utility model is: a kind of liquid nitrogen cold recovery system, include nitrogen storage tank and circulating water pool, and circulating water pool crown center is equipped with water-cooling tower, and water-cooling tower bottom is positioned at and on circulating water pool, has water inlet.Between circulating water pool and water-cooling tower, be also connected with a water pipe, water pipe one end is communicated with circulating water pool side bottom, the other end puts in water-cooling tower top and is fitted with some spray heads, spray head below is positioned at is equipped with some cooling fans on water-cooling tower madial wall, and water pump and heat exchanger are also housed on water pipe.Wherein between nitrogen storage tank and water-cooling tower, be also connected with a breather pipe, breather pipe one end is communicated with nitrogen storage tank top, and the other end puts in water-cooling tower bottom and is fitted with out gas coil pipe, goes out gas coil pipe top and has some uniform ventholes.
The outer cover of breather pipe described in the utility model has insulating tube, is filled with polyurethane foamed thermal-insulating agent between insulating tube and breather pipe.
The thickness of the polyurethane foamed thermal-insulating agent between breather pipe described in the utility model and insulating tube is 100mm.
The utility model leads to the low temperature nitrogen volatilizing in nitrogen storage tank in water-cooling tower the cooling water of needs is lowered the temperature, and has brought following benefit: (1) can avoid the low temperature nitrogen of volatilization directly to discharge a large amount of wastes that cause resource, has saved cost; (2) low temperature nitrogen of volatilization is no longer discharged by the exhaust-valve at nitrogen storage tank top, has effectively stopped the icing potential safety hazard of evacuation port; (3) in water-cooling tower, need cooling water to carry out by cooling fan and low temperature nitrogen cooling, cooling effectiveness improves greatly simultaneously.
Accompanying drawing explanation
Fig. 1 is front view of the present utility model;
Fig. 2 is the A-A amplification profile diagram of Fig. 1;
Fig. 3 is the B-B amplification view of Fig. 1.
In figure: 1-nitrogen storage tank, 2-breather pipe, the agent of 3-polyurethane foamed thermal-insulating, 4-insulating tube, 5-water-cooling tower, 6-cooling fan, 7-spray head, 8-goes out gas coil pipe, 9-water inlet, 10-circulating water pool, 11-water pipe, 12-water pump, 13-heat exchanger, 14-venthole.
The specific embodiment
Referring to Fig. 1～Fig. 3, the utility model includes nitrogen storage tank 1 and circulating water pool 10, and circulating water pool 10 crown centers are equipped with water-cooling tower 5, and water-cooling tower 5 bottoms are positioned at and on circulating water pool 10, have water inlet 9.Between circulating water pool 10 and water-cooling tower 5, be also connected with a water pipe 11, water pipe 11 one end are communicated with circulating water pool 10 side bottoms, the other end puts in water-cooling tower 5 tops and is fitted with a plurality of spray heads 7, spray head 7 belows are positioned at is equipped with eight cooling fans 6 on water-cooling tower 5 madial walls, and water pump 12 and heat exchanger 13 are also housed on water pipe 11.Particularly: between described nitrogen storage tank 1 and water-cooling tower 5, be also connected with a breather pipe 2, breather pipe 2 one end are communicated with nitrogen storage tank 1 top, the other end puts in water-cooling tower 5 bottoms and is fitted with out gas coil pipe 8, goes out gas coil pipe 8 tops and has 18 uniform ventholes 14.
The outer cover of breather pipe described in the present embodiment 2 has insulating tube 4, between insulating tube 4 and breather pipe 2, is filled with polyurethane foamed thermal-insulating agent 3, and the thickness of this polyurethane foamed thermal-insulating agent 3 is 100mm.
By reference to the accompanying drawings embodiment of the present utility model is described above, but the utility model is not limited to the above-mentioned specific embodiment, the above-mentioned specific embodiment is preferred embodiment of the present utility model, is only schematically, rather than restrictive.Those of ordinary skill in the art is under enlightenment of the present utility model, do not departing from the scope situation that the utility model aim and claim protect, nitrogen storage tank 1 in the utility model, breather pipe 2, polyurethane foamed thermal-insulating agent 3, insulating tube 4, water-cooling tower 5, cooling fan 6, spray head 7, go out gas coil pipe 8, water inlet 9, circulating water pool 10, water pipe 11, water pump 12, the size of heat exchanger 13 and venthole 14, the selection of specification and material, can adjust according to actual needs, as long as these adjust the change without substantive principle, all belong to protection domain of the present utility model.
Claims (3)
1. a liquid nitrogen cold recovery system, includes nitrogen storage tank and circulating water pool, and circulating water pool crown center is equipped with water-cooling tower, and water-cooling tower bottom is positioned at and on circulating water pool, has water inlet; Between circulating water pool and water-cooling tower, be also connected with a water pipe, water pipe one end is communicated with circulating water pool side bottom, the other end puts in water-cooling tower top and is fitted with some spray heads, spray head below is positioned at is equipped with some cooling fans on water-cooling tower madial wall, and water pump and heat exchanger are also housed on water pipe; It is characterized in that: between described nitrogen storage tank and water-cooling tower, be also connected with a breather pipe, breather pipe one end is communicated with nitrogen storage tank top, and the other end puts in water-cooling tower bottom and is fitted with out gas coil pipe, go out gas coil pipe top and have some uniform ventholes.
2. a kind of liquid nitrogen cold recovery system according to claim 1, is characterized in that: the outer cover of described breather pipe has insulating tube, is filled with polyurethane foamed thermal-insulating agent between insulating tube and breather pipe.
3. a kind of liquid nitrogen cold recovery system according to claim 2, is characterized in that: the thickness of the polyurethane foamed thermal-insulating agent between described breather pipe and insulating tube is 100mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320628805.1U CN203586861U (en) | 2013-10-12 | 2013-10-12 | Liquid nitrogen cooling capacity recycling system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320628805.1U CN203586861U (en) | 2013-10-12 | 2013-10-12 | Liquid nitrogen cooling capacity recycling system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203586861U true CN203586861U (en) | 2014-05-07 |
Family
ID=50584769
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320628805.1U Expired - Lifetime CN203586861U (en) | 2013-10-12 | 2013-10-12 | Liquid nitrogen cooling capacity recycling system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203586861U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104457317A (en) * | 2014-11-19 | 2015-03-25 | 西安工程大学 | Stand-pipe indirect-direct two-stage evaporative cooling tower |
| CN104567453A (en) * | 2013-10-12 | 2015-04-29 | 湖北浠水蓝天联合气体有限公司 | Liquid nitrogen cold energy recovering system |
| CN104713384A (en) * | 2015-03-13 | 2015-06-17 | 芜湖凯博实业股份有限公司 | Cooling tower |
| CN109631616A (en) * | 2019-01-15 | 2019-04-16 | 中盐安徽红四方股份有限公司 | Cryogenic liquid steam heater and heating means |
-
2013
- 2013-10-12 CN CN201320628805.1U patent/CN203586861U/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104567453A (en) * | 2013-10-12 | 2015-04-29 | 湖北浠水蓝天联合气体有限公司 | Liquid nitrogen cold energy recovering system |
| CN104457317A (en) * | 2014-11-19 | 2015-03-25 | 西安工程大学 | Stand-pipe indirect-direct two-stage evaporative cooling tower |
| CN104713384A (en) * | 2015-03-13 | 2015-06-17 | 芜湖凯博实业股份有限公司 | Cooling tower |
| CN109631616A (en) * | 2019-01-15 | 2019-04-16 | 中盐安徽红四方股份有限公司 | Cryogenic liquid steam heater and heating means |
| CN109631616B (en) * | 2019-01-15 | 2020-07-07 | 中盐安徽红四方股份有限公司 | Low-temperature liquid steam heater and heating method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140507 |