CN104567453A - Liquid nitrogen cold energy recovering system - Google Patents
Liquid nitrogen cold energy recovering system Download PDFInfo
- Publication number
- CN104567453A CN104567453A CN201310474793.6A CN201310474793A CN104567453A CN 104567453 A CN104567453 A CN 104567453A CN 201310474793 A CN201310474793 A CN 201310474793A CN 104567453 A CN104567453 A CN 104567453A
- Authority
- CN
- China
- Prior art keywords
- water
- cooling tower
- pipe
- liquid nitrogen
- storage tank
- 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.)
- Pending
Links
Abstract
The invention discloses a liquid nitrogen cold energy recovering system which comprises a liquid nitrogen storage tank and a recycling pool. The middle of the top of the recycling pool is provided with a water-cooling tower. The bottom of the water-cooling tower above the recycling pool is provided with a water inlet. A water pipe is connected between the recycling pool and the water-cooling tower. One end of the water pipe is communicated with the bottom of a side edge of the recycling pool, and the other end of the water pipe extends into the upper part of the water-cooling tower and is provided with several spray heads. The inner side wall of the water-cooling tower below the spray heads is provided with several cooling fans. The water pipe is also provided with a water pump and a heat exchanger. A breather pipe is also connected between the liquid nitrogen storage tank and the water-cooling tower. One end of the breather pipe is communicated with the upper part of the liquid nitrogen storage tank, and the other end of the breather pipe extends into the lower part of the water-cooling tower and is provided with an air outlet coil pipe, the top of which is provided with several uniformly-distributed air outlets. Volatile cryogenic nitrogen can be recycled, wasting of resources is avoided, and water which needs to be cooled in the water-cooling tower can be cooled. The system provided by the invention is mainly used for recycling volatile cryogenic nitrogen in the liquid nitrogen storage tank.
Description
Technical field
The present invention relates to cryogenic gas cold recovery technical field, especially a kind of liquid nitrogen cold recovery system.
Background technology
At present, at Air separation industry, low temperature liquid nitrogen holding vessel is the container as stored nitrogen, and stored liquid nitrogen is the liquid of subzero less than 180 degrees Celsius.Even if it is very adiabatic that low temperature liquid nitrogen holding vessel has Insulation to accomplish, cause having volatility nitrogen to produce all the time, the gas temperature of these volatility nitrogen is also at subzero less than 180 degrees Celsius, the volatility nitrogen produced generally must be discharged by the exhaust-valve at holding vessel top, ensures safety with the pressure controlled in holding vessel.According to statistics, the nitrogen storage tank of every 1000 cubic metres almost will discharge the oxygen of 2000 cubes every day, not only causes very large energy loss, and this strand of cold also causes drain to freeze seriously, becomes a potential safety hazard of storage tank.
Nitrogen is generally obtained by air separation, and in the equipment of air separation, heat exchanger is absolutely necessary.And heat exchanger mainly to carry out work by cooling water circulation heat absorption.Traditional cooling water supply unit has circulating water pool, and circulating water pool crown center is equipped with water-cooling tower, is positioned on circulating water pool and has water inlet bottom water-cooling tower.A water pipe is also connected with between circulating water pool and water-cooling tower, water pipe one end is communicated with bottom circulating water pool side, put in water-cooling tower top again after the other end is communicated with heat exchanger and be fitted with some spray heads, be positioned at below spray head on water-cooling tower madial wall and some cooling fans are housed, and water pipe is also equipped with water pump.When producing nitrogen, water is lowered the temperature mainly through cooling fan by this traditional cooling water supply unit, and efficiency is lower.
Therefore, design a kind of liquid nitrogen cold recovery system that simultaneously can solve above-mentioned two problems to be extremely necessary.
Summary of the invention
Object of the present invention will be improved for above-mentioned the deficiencies in the prior art exactly, a kind of liquid nitrogen cold recovery system that can overcome above-mentioned defect is preferably provided, this recovery system can prevent the low temperature nitrogen volatilized from slatterning, and can improve again the cooling effectiveness of cooling water supply unit.
Concrete scheme of the present invention is: a kind of liquid nitrogen cold recovery system, include nitrogen storage tank and circulating water pool, circulating water pool crown center is equipped with water-cooling tower, is positioned on circulating water pool and has water inlet bottom water-cooling tower.A water pipe is also connected with between circulating water pool and water-cooling tower, water pipe one end is communicated with bottom circulating water pool side, the other end puts in water-cooling tower top and is fitted with some spray heads, be positioned at below spray head on water-cooling tower madial wall and some cooling fans are housed, and water pipe is also equipped with water pump and heat exchanger.Wherein also be connected with a breather pipe between nitrogen storage tank and water-cooling tower, 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 present invention 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 described in the present invention between breather pipe and insulating tube is 100mm.
The low temperature nitrogen volatilized in nitrogen storage tank leads in water-cooling tower and lowers the temperature to the water of needs cooling by the present invention, brings following benefit: (1) can avoid the low temperature nitrogen volatilized directly to discharge a large amount of wastes causing resource, has saved cost; (2) low temperature nitrogen volatilized no longer is discharged by the exhaust-valve of liquid nitrogen storage tank top, has effectively stopped the potential safety hazard that evacuation port freezes; (3) need the water cooled to be cooled by cooling fan and low temperature nitrogen in water-cooling tower, cooling effectiveness improves greatly simultaneously.
Accompanying drawing explanation
Fig. 1 is front view of the present invention;
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.
Detailed description of the invention
See Fig. 1 ~ Fig. 3, the present invention includes nitrogen storage tank 1 and circulating water pool 10, circulating water pool 10 crown center is equipped with water-cooling tower 5, is positioned on circulating water pool 10 and has water inlet 9 bottom water-cooling tower 5.A water pipe 11 is also connected with between circulating water pool 10 and water-cooling tower 5, water pipe 11 one end is communicated with bottom circulating water pool 10 side, the other end puts in water-cooling tower 5 top and is fitted with multiple spray head 7, be positioned at below spray head 7 on water-cooling tower 5 madial wall and eight cooling fans 6 are housed, and water pipe 11 is also equipped with water pump 12 and heat exchanger 13.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 is communicated with nitrogen storage tank 1 top, the other end puts in water-cooling tower 5 bottom and is fitted with out gas coil pipe 8, goes out gas coil pipe 8 top and has 18 uniform ventholes 14.
The outer cover of breather pipe 2 described in the present embodiment has insulating tube 4, is filled with polyurethane foamed thermal-insulating agent 3 between insulating tube 4 and breather pipe 2, and the thickness of this polyurethane foamed thermal-insulating agent 3 is 100mm.
Be described embodiments of the invention by reference to the accompanying drawings above, but the present invention is not limited to above-mentioned detailed description of the invention, above-mentioned detailed description of the invention is the preferred embodiment of the present invention, is only schematic, instead of restrictive.Those of ordinary skill in the art is under enlightenment of the present invention; do not departing under the ambit that present inventive concept and claim protect; the selection of the nitrogen storage tank 1 in the present invention, breather pipe 2, polyurethane foamed thermal-insulating agent 3, insulating tube 4, water-cooling tower 5, cooling fan 6, spray head 7, the size going out gas coil pipe 8, water inlet 9, circulating water pool 10, water pipe 11, water pump 12, heat exchanger 13 and venthole 14, specification and material; can adjust according to actual needs; as long as these adjustment, without the change of substantive principle, all belong to protection scope of the present invention.
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, is positioned on circulating water pool and has water inlet bottom water-cooling tower; A water pipe is also connected with between circulating water pool and water-cooling tower, water pipe one end is communicated with bottom circulating water pool side, the other end puts in water-cooling tower top and is fitted with some spray heads, be positioned at below spray head on water-cooling tower madial wall and some cooling fans are housed, and water pipe is also equipped with water pump and heat exchanger; It is characterized in that: be also connected with a breather pipe between described nitrogen storage tank and water-cooling tower, 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 |
|---|---|---|---|
| CN201310474793.6A CN104567453A (en) | 2013-10-12 | 2013-10-12 | Liquid nitrogen cold energy recovering system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310474793.6A CN104567453A (en) | 2013-10-12 | 2013-10-12 | Liquid nitrogen cold energy recovering system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104567453A true CN104567453A (en) | 2015-04-29 |
Family
ID=53084094
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310474793.6A Pending CN104567453A (en) | 2013-10-12 | 2013-10-12 | Liquid nitrogen cold energy recovering system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104567453A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111238112A (en) * | 2020-01-14 | 2020-06-05 | 广州立中锦山合金有限公司 | Liquid nitrogen gasification treatment and cold energy recovery system |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20020060375A1 (en) * | 1998-05-11 | 2002-05-23 | Davis John Albert | Cooling tower construction |
| JP2005337561A (en) * | 2004-05-26 | 2005-12-08 | Ishikawajima Harima Heavy Ind Co Ltd | Scrubber combined cooling tower |
| CN201104060Y (en) * | 2007-11-30 | 2008-08-20 | 清华大学 | Indirect evaporation type cooling/condensing unit |
| CN201229121Y (en) * | 2008-05-16 | 2009-04-29 | 昆明理工大学 | Air cooling device for high vacuum continuous coating circulating water |
| CN201724572U (en) * | 2009-12-03 | 2011-01-26 | 顾隆维 | Closed cooler |
| CN102313457A (en) * | 2010-07-06 | 2012-01-11 | 张立清 | Method for reducing circulating water temperature of thermal power plant and relevant industries |
| CN202532915U (en) * | 2012-02-02 | 2012-11-14 | 海门市大生水处理设备（厂）有限公司 | Energy-saving cooling tower |
| CN202692290U (en) * | 2012-06-08 | 2013-01-23 | 四川新国荣能源材料有限责任公司 | Liquid nitrogen evaporation cold energy recovery and utilization system |
| CN203586861U (en) * | 2013-10-12 | 2014-05-07 | 湖北浠水蓝天联合气体有限公司 | Liquid nitrogen cooling capacity recycling system |
-
2013
- 2013-10-12 CN CN201310474793.6A patent/CN104567453A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20020060375A1 (en) * | 1998-05-11 | 2002-05-23 | Davis John Albert | Cooling tower construction |
| JP2005337561A (en) * | 2004-05-26 | 2005-12-08 | Ishikawajima Harima Heavy Ind Co Ltd | Scrubber combined cooling tower |
| CN201104060Y (en) * | 2007-11-30 | 2008-08-20 | 清华大学 | Indirect evaporation type cooling/condensing unit |
| CN201229121Y (en) * | 2008-05-16 | 2009-04-29 | 昆明理工大学 | Air cooling device for high vacuum continuous coating circulating water |
| CN201724572U (en) * | 2009-12-03 | 2011-01-26 | 顾隆维 | Closed cooler |
| CN102313457A (en) * | 2010-07-06 | 2012-01-11 | 张立清 | Method for reducing circulating water temperature of thermal power plant and relevant industries |
| CN202532915U (en) * | 2012-02-02 | 2012-11-14 | 海门市大生水处理设备（厂）有限公司 | Energy-saving cooling tower |
| CN202692290U (en) * | 2012-06-08 | 2013-01-23 | 四川新国荣能源材料有限责任公司 | Liquid nitrogen evaporation cold energy recovery and utilization system |
| CN203586861U (en) * | 2013-10-12 | 2014-05-07 | 湖北浠水蓝天联合气体有限公司 | Liquid nitrogen cooling capacity recycling system |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111238112A (en) * | 2020-01-14 | 2020-06-05 | 广州立中锦山合金有限公司 | Liquid nitrogen gasification treatment and cold energy recovery system |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN203586861U (en) | Liquid nitrogen cooling capacity recycling system | |
| CN205146917U (en) | A cooling device for aluminium alloy production | |
| CN203428286U (en) | Wine tank spraying device | |
| CN205366672U (en) | Living beings crude oil oil storage tank with cooling device | |
| CN207723994U (en) | Cutting machine water cooling plant | |
| CN104567453A (en) | Liquid nitrogen cold energy recovering system | |
| CN203787752U (en) | Laser water cooling unit | |
| CN209334673U (en) | A kind of novel cooling device applying to magnesium alloy semi-continuous casting | |
| CN206656623U (en) | A kind of oil cooling system | |
| CN204127292U (en) | Gear-box and casing thereof | |
| CN202237351U (en) | Organic waste gas liquefying and recovering device | |
| CN206437449U (en) | A kind of novel oil storage tank for petroleum storage | |
| CN212482179U (en) | Water-saving anti-freezing closed cooling tower | |
| CN206799556U (en) | A kind of absorbing natural gas tower heat-exchange system | |
| CN203163528U (en) | High-efficiency cooling tower | |
| CN203629362U (en) | Novel circulating high-temperature water cooling device | |
| CN216482385U (en) | Secondary sterilization cooling water cooling circulation device | |
| CN204361211U (en) | For the Novel guide grid of coldplate | |
| CN206280315U (en) | A kind of new hydraulic power unit fuel tank | |
| CN204295150U (en) | Be provided with the compound efficient cooler of composite cooler | |
| CN211441032U (en) | Plastic die assembly for plastic parts | |
| CN204094127U (en) | A kind of high-efficient aluminium alloy gravity force casting machine | |
| CN204563951U (en) | A kind of Inner eycle cooling ammoniacal liquor preparation facilities | |
| CN202323091U (en) | Air pumping cooling device | |
| CN203872918U (en) | Energy-saving reserve material cooling machine |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20150429 |