CN101169040A - Mine working face cooling system - Google Patents

Mine working face cooling system Download PDF

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Publication number
CN101169040A
CN101169040A CNA200610069373XA CN200610069373A CN101169040A CN 101169040 A CN101169040 A CN 101169040A CN A200610069373X A CNA200610069373X A CN A200610069373XA CN 200610069373 A CN200610069373 A CN 200610069373A CN 101169040 A CN101169040 A CN 101169040A
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CN
China
Prior art keywords
water
cooling
air
spray
wind
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Application number
CNA200610069373XA
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Chinese (zh)
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CN100557193C (en
Inventor
戴华东
齐吉龙
王素芬
王念强
张全亮
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兖矿新陆建设发展有限公司
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Priority to CNB200610069373XA priority Critical patent/CN100557193C/en
Publication of CN101169040A publication Critical patent/CN101169040A/en
Application granted granted Critical
Publication of CN100557193C publication Critical patent/CN100557193C/en

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Abstract

The invention provides a cooling system for the working face of the mine. The invention consists of a ground refrigerating unit, a cooling water recycling device, a cold wind preparing device and a cold wind conveying pipeline. The refrigerating unit and the cooling water recycling device comprise a compressor 7, a condenser 3, a throttle 8, a heat exchanger 10, a cooling water pond 1, and a fresh water pump 2. The cold wind preparing device is a wind spraying chamber 11, and uses the cold media water prepared by the refrigerating unit to spray the wind current, can comprises a wind-inlet grille 16, a wind outlet 20, a water squirting pipe 17, a nozzle 18, a breakwater 19, a wind chamber water falling pond 21, a general water inlet pipe 22, a general water outlet pipe 23 and the like. A plurality of rows of vertical water squirting pipes are arranged between the wind-inlet grille and the wind inlet, nozzles are arranged on the top of the water squirting pipes, and the general water inlet pipe introduces the cold media water of the refrigerating unit. The invention adopts the cold media water spray to process, and prepare the cold wind with the high wind volume, high temperature difference, high enthalpy difference; can reduce the times of the heat exchanging process, lower the heat transferring temperature difference, improve the whole efficiency, and reduce the cold volume waste of the middle course; thereby is applicable for cooling the high-temperature hot and harmful circumstance.

Description

Mine working face cooling system
Technical field
The present invention relates to the mine working face cooling field, particularly a kind of mine working face cooling system that is applicable to cooling usefulness in the ultradeep well getting working face elevated temperature heat evil environment.
Background technology
" utility model patent communique " discloses " the ice-melt pond, down-hole in the ice-cold cooling system of mine ", application number: 200420002465 patent.The centralized chiller plant in this mine working face cooling process using ground is made the ice and snow mixture, melts the heat-absorbing action cooling air in the down-hole by ice and snow, cold air is transported to work plane again and is reached for the working face cooling purpose.Because of having increased by two pilot process of ice and snow manufacturing and ice dissolution, system effectiveness is descended greatly, increased the input of equipment and fund simultaneously, economy descends; The actual heat absorption capacity of ice dissolution theoretical foundation has for want of reduced the reliability that is used for engineering in addition.
Summary of the invention
In order to overcome the deficiency that existing mine working face cooling system investment is big, efficient is low, reliability is low, the invention provides a kind of mine working face cooling system, it can satisfy the big air quantity of mine cooling needs, the big temperature difference, the requirement of big enthalpy difference refrigeration, simplify pilot process and realize energy efficiency, improve reliability of applying.
The technical solution adopted for the present invention to solve the technical problems is:
Mine working face cooling system by with the ground refrigeration unit and the cooling water recycle unit thereof of cold-producing medium refrigeration, claim the cold wind preparation facilities, the air-supply pipeline etc. of cold wind being delivered to mining face under mine forms.Refrigeration unit and cooling water recycle unit thereof are made up of compressor, condenser, choke valve, heat exchanger, cooling pond, clarified water pump etc.Its cold wind preparation facilities is the spray air compartment that utilizes the chilled water spray cooling air that refrigeration unit produces.The spray air compartment is made up of air intake grid, air outlet, water spray comb, nozzle, watertight shutter, the drowning pond of air compartment, water inlet manifold, outfall sewer etc.Air intake grid is positioned at spray air compartment air intake place, and air outlet is positioned at a side relative with air intake.The water spray comb is a standpipe in a row in parallel between inlet and outlet, and standpipe is at least four rows, is two-stage that every grade is two rows.Each comb of spraying water is connected with water inlet manifold, and water inlet manifold is connected with the chilled water outlet of refrigeration unit heat exchanger.Nozzle is contained on the water spray comb.The drowning pond of air compartment is positioned at the bottom of spray air compartment, and air compartment has outfall sewer in the drowning pond.Outfall sewer is connected with the chilled water inlet of heat exchanger by refrigerant water pump, strainer.Watertight shutter is positioned at air outlet one side.The air outlet of spray air compartment is connected with the air-supply pipeline by blower fan.
The technical solution adopted for the present invention to solve the technical problems can also be:
The cold-producing medium that the refrigeration unit of mine working face cooling system is used is ammonia or fluorine Lyons.The water spray comb adopts eight row, i.e. level Four; Every grade two rows' nozzle is that spray is arranged.The heat exchanger of preparation chilled water is plate exchanger or pipe-coil type evaporator.Air compartment is provided with filling pipe, overflow pipe, blow-off pipe in the drowning pond.The cold wind preparation facilities of this system is the surface cooler of available plural serial stage also, at least three grades of series connection progression.
The invention has the beneficial effects as follows:
Can satisfy the special technical requirement of the needed big air quantity of mine cooling engineering, the big temperature difference, big enthalpy difference air cooling.By reducing the heat exchanging process number of times, reduce heat transfer temperature difference, improve entire system efficient, reduce the loss of refrigeration capacity of pilot process.Effectively reduce the temperature of deep-well mining face under mine elevated temperature heat evil environment, reach the national regulation standard.Engineering reliability of applying height.
Description of drawings
Fig. 1: the schematic diagram of mine working face cooling system of the present invention.
Fig. 2: the main sectional view of spray air compartment 11 among Fig. 1.
Fig. 3: the A-A sectional view among Fig. 1.
Among the figure: the 1-cooling pond, the 2-clarified water pump, the 3-evaporative condenser, the 4-Siphon pot, 5-high pressure fluid reservoir, the 6-ammonia oil separator, the 7-compressor, the 8-choke valve, the 9-ammonia liquor separator, the 10-plate exchanger, 11-sprays air compartment, 12-refrigerant water pump, the 13-strainer, the 14-blower fan, the 15-pipeline of blowing, the 16-air intake grid, the 17-comb of spraying water, the 18-swirl atomizer, the 19-watertight shutter, the 20-air outlet, the 21-air compartment pond of falling into water, the 22-water inlet manifold, the 23-outfall sewer, the 24-filling pipe, the 25-overflow pipe, the 26-blow-off pipe.
The specific embodiment
Below in conjunction with accompanying drawing embodiments of the invention are described in further detail:
Embodiment 1:
Mine working face cooling system of the present invention, claim mining face under mine to spray air-cooled cooling system again, ammonia refrigeration unit by the centralized machine room in ground is produced chilled water, make chilled water distinguished and admirable preparation cold wind of spray in the spray air compartment, with blower fan cold wind is sent into mine working face cooling through the air-supply pipeline again.
The composition of mine working face cooling system of the present invention shown in Figure 1.This system mainly by ground ammonia refrigeration unit and cooling water recycle unit thereof, utilize chilled water to prepare the device of cold wind---spray air compartment, cold wind conveying fan and air-supply pipeline are formed.That is, comprise ammonia recycle system, cooling water recirculation system, refrigerant water system, cold wind conveying facility.Single arrow among the figure, hollow single arrow, hollow double-head arrow, double-head arrow are represented the flow direction of ammonia, cooling water, chilled water, cold wind respectively.
The ammonia refrigeration unit is made up of screw compressor 7, oily ammonia separator 6, evaporative condenser 3, Siphon pot 4, high pressure fluid reservoir 5, choke valve 8, ammonia liquor separator 9, plate exchanger 10 etc.The cooling water recycle unit of refrigeration unit is made up of cooling pond 1, clarified water pump 2, evaporative condenser 3 etc.In ammonia recycle system, by the vaporization heat-absorbing action of ammoniacal liquor in plate exchanger 10, chilled water in plate exchanger 10 other passages is cooled, and the heat that ammonia absorbs is discharged into the atmosphere by the cooling water circulation of being made up of cooling pond 1, clarified water pump 2, evaporative condenser 3.
Structure at the spray of this mine working face cooling system shown in Fig. 2,3 air compartment 11.Constitute by air intake grid 16, water spray comb 17, swirl atomizer 18, watertight shutter 19, hemispherical dome air outlet 20, the drowning pond 21 of air compartment, water inlet manifold 22, outfall sewer 23, filling pipe 24, overflow pipe 25, blow-off pipe 26.
Air intake grid 16 is positioned at spray air compartment air intake place, and air outlet 20 is positioned at a side relative with air intake.Water spray comb 17 is at the standpipe into and out of parallel connection in a row between the air port, and standpipe is eight rows, is level Four that every grade is two rows.Nozzle 18 is contained on the water spray comb 17, and two rows' of each grade nozzle 18 adopts the spray mode.Every row comb of spraying water comprises six roots of sensation water spray standpipe, and every row evenly arranges 127 at nozzle altogether, and eight row's water spray combs amount to 1016 at nozzle.Each comb 17 of spraying water is connected with the water inlet manifold 22 of introducing chilled water, and water inlet manifold 22 is connected with the outlet of the chilled water side of the plate exchanger 10 of refrigeration unit.
The drowning pond 21 of air compartment is positioned at spray air compartment bottom, and air compartment has outfall sewer 23, filling pipe 24, overflow pipe 25, blow-off pipe 26 etc. in the drowning pond 21.Outfall sewer 23 is connected with the inlet of the chilled water side of heat exchanger 10 by refrigerant water pump 12, strainer 13.Watertight shutter 19 is positioned at air outlet 20 1 sides.Spray air compartment 11 is connected with blower fan 14, air-supply pipeline 15 by hemispherical dome air outlet 20.
Air intake grid 16, strainer 13 are the finer wire screen pack about 16 orders.Watertight shutter 19 is made up of one group of vertical zigzag thin plate of arranging, forms tortuous air-out airflow channel, increases the collision of distinguished and admirable middle water smoke particulate of air-out and wooden partition, reduces the moisture content of cold wind.Plate exchanger can adopt: BHBR-0.6 type, Nanjing Gaojie Light Industry Equipment Co., Ltd.'s product.Nozzle can adopt: Y-1 type nylon swirl atomizer.
That spray air compartment 11 is native systems is distinguished and admirable with the chilled water spray, for the key equipment of distinguished and admirable cooling, preparation cold wind, can claim cold wind preparation facilities or air cooling device.It requires the ground refrigeration unit that 5~9 ℃ chilled water is provided.The ammonia wing passage of plate exchanger 10 is by the vaporization of liquid ammonia, and the chilled water of water wing passage is cooled to design temperature.Chilled water passes through water spray comb 17 swirl atomizers 18 under hydraulic action in spray air compartment 11, spraying into water smoke scatters, directly contact with distinguished and admirable, by being clouded in the spray of the nozzle in the air compartment, successively after one~level Four of level Four water spray comb 17 cools, the abundant contact heat-exchanging of air and chilled water.Air subtracts the enthalpy process by this cool-down dehumidification, reduces to 5~9 ℃ by 35~40 ℃, becomes cold wind, reaches cold wind temperature, the humidity requirement of design, thereby has realized the technical requirements of the needed big air quantity of downhole cooling, the big temperature difference, big enthalpy difference air cooling.Through watertight shutter 19 dehumidifying, siphoned away by blower fan from hemispherical dome air outlet 20.Blower fan 14 makes and sprays air compartment formation negative pressure, produces distinguished and admirable, and the cold wind for preparing is passed through forced long distance through air-supply pipeline 15 blow, deliver to the mine down-hole, cold is passed to getting working face, make working face cooling reach the national regulation standard, improve mine working face elevated temperature heat evil environment.This cooling system not only can be used for pit shaft, and can extend to getting working face.
Behind the chilled water spray, fall into the drowning pond 21 of air compartment of water spray air compartment bottom, flow among the two-way return main 23 of band screen pack, behind refrigerant water pump 12, strainer 13, flow back to the chilled water side of refrigeration unit plate exchanger 10, form the chilled water circulation.Filling pipe 24, the overflow pipe 25 of this water spray air compartment 11 can be realized the function of automatic water supplement, spilling water.Blow-off pipe 26 is realized dirt eliminating function.
Refrigeration unit also can adopt freon refrigeration equipment.It is preferred that water spray comb 17 adopts level Four, can increase and decrease as required.Plate exchanger 10 also can adopt pipe-coil type evaporator to replace.
Embodiment 2:
This mine working face cooling system also can adopt the surface cooler of plural serial stage, replaces the spray air compartment and makes the cold wind preparation facilities.Series connection progression is at least three grades.Surface cooler can adopt: KL-2-6 * 22 * 1500 types, changes in temperature equipment Co., Ltd product during Shanghai is new.

Claims (9)

1. mine working face cooling system comprises the air-supply pipeline of delivering to mining face under mine with the ground refrigeration unit of cold-producing medium refrigeration and cooling water recycle unit thereof, cold wind preparation facilities, with cold wind; Refrigeration unit and cooling water recycle unit thereof comprise compressor (7), condenser (3), choke valve (8), heat exchanger (10), cooling pond (1), clarified water pump (2); It is characterized in that: said cold wind preparation facilities is the spray air compartment (11) that utilizes the chilled water spray cooling air that refrigeration unit produces; Spray air compartment (11) comprises air intake grid (16), air outlet (20), water spray comb (17), nozzle (18), watertight shutter (19), the drowning pond (21) of air compartment, water inlet manifold (22), outfall sewer (23); Air intake grid (16) is positioned at spray air compartment air intake place, and air outlet (20) is positioned at a side relative with air intake; Water spray comb (17) is at the standpipe into and out of parallel connection in a row between the air port, and standpipe is at least four rows, is two-stage; Each comb of spraying water (17) is connected with the water inlet manifold (22) of introducing chilled water, and water inlet manifold (22) is connected with the chilled water outlet of the heat exchanger (10) of refrigeration unit; Nozzle (18) is contained on the water spray comb (17); The air compartment pond (21) of falling into water is positioned at spray air compartment bottom, and outfall sewer (23) is arranged in it; Outfall sewer (23) is connected with the inlet of the chilled water side of heat exchanger (10) through refrigerant water pump (12), strainer (13); Watertight shutter (19) is positioned at air outlet (20) one sides; The air outlet (20) of spray air compartment is connected with said air-supply pipeline (15) by blower fan (14).
2. mine working face cooling system according to claim 1 is characterized in that: said cold-producing medium is an ammonia.
3. mine working face cooling system according to claim 1 is characterized in that: said cold-producing medium is fluorine Lyons.
4. mine working face cooling system according to claim 1 is characterized in that: said nozzle (18) is gone up to spray is arranged at two row's water spray combs (17) of every grade.
5. mine working face cooling system according to claim 1 is characterized in that: said water spray comb (17) has eight rows, is level Four.
6. mine working face cooling system according to claim 1 is characterized in that: the heat exchanger of said preparation chilled water (10) is a plate exchanger.
7. mine working face cooling system according to claim 1 is characterized in that: the heat exchanger of said preparation chilled water (10) is a pipe-coil type evaporator.
8. mine working face cooling system according to claim 1 is characterized in that: said air compartment falls into water has automatic water supplement pipe (24), overflow pipe (25), blow-off pipe (26) in the pond (21).
9. mine working face cooling system comprises the air-supply pipeline of delivering to mining face under mine with the ground refrigeration unit of cold-producing medium refrigeration and cooling water recirculation system thereof, cold wind preparation facilities, with cold wind; Refrigeration unit and cooling water recirculation system thereof comprise compressor (7), condenser (3), choke valve (8), heat exchanger (10), cooling pond (1), clarified water pump (2); It is characterized in that: said cold wind preparation facilities is the surface cooler of plural serial stage, and series connection progression is at least three grades.
CNB200610069373XA 2006-10-23 2006-10-23 Mine working face cooling system CN100557193C (en)

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Application Number Priority Date Filing Date Title
CNB200610069373XA CN100557193C (en) 2006-10-23 2006-10-23 Mine working face cooling system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CNB200610069373XA CN100557193C (en) 2006-10-23 2006-10-23 Mine working face cooling system

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CN100557193C CN100557193C (en) 2009-11-04

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Cited By (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101943018A (en) * 2010-09-29 2011-01-12 煤炭科学研究总院重庆研究院 Recooler for mine
CN102080893A (en) * 2010-12-29 2011-06-01 山东绿能燃气实业有限责任公司 Novel ammonia refrigerating device and technical process
CN101761353B (en) * 2009-12-18 2011-11-16 大连海事大学 Air cooling system for mine rescue capsule
CN102269008A (en) * 2011-08-18 2011-12-07 中煤矿山建设集团有限责任公司 System for reducing mine temperature by use of constant-temperature water bearing formation
CN102359387A (en) * 2011-09-01 2012-02-22 中国科学院武汉岩土力学研究所 Temperature-reduction and dehumidification control device
CN102619551A (en) * 2012-04-25 2012-08-01 中煤科工集团重庆研究院 System and method for realizing long-time uniform cooling in mine high-temperature stope working face
CN102678157A (en) * 2011-11-16 2012-09-19 韩雪峰 Refrigeration cooling and dehumidification air conditioner
CN101445839B (en) * 2008-12-24 2012-09-26 浙江省湖州二轻机械总厂 Rotating roller dual cycle cooling system
CN102943685A (en) * 2012-10-25 2013-02-27 上海岚毅智能科技有限公司 Method and device for cooling and dehumidifying mine risk-avoiding chamber and escape capsule
CN103216255A (en) * 2013-04-22 2013-07-24 河南理工大学 Compressed air cold conveying cooling system for mine and cooling method thereof
CN103410549A (en) * 2012-12-20 2013-11-27 兖州煤业股份有限公司 System and method by means of power plant waste heat for conducting aeration cooling on mine
CN103485800A (en) * 2013-08-26 2014-01-01 中国矿业大学(北京) Shaft underworkings cooling system
CN103912241A (en) * 2014-04-10 2014-07-09 西安博深煤矿安全科技有限公司 Refrigeration cooling system under mine
CN104005783A (en) * 2014-06-10 2014-08-27 北京中煤矿山工程有限公司 Pneumatic refrigeration device and method for mine
CN104314602A (en) * 2014-08-15 2015-01-28 张惠忠 Underground comprehensive refrigerating method
CN106223992A (en) * 2016-08-29 2016-12-14 北京建筑大学 High-temperature mine local refrigeration system and method
CN106545355A (en) * 2015-09-23 2017-03-29 武汉星田热环境控制技术有限公司 A kind of spray chamber equipment method for arranging
CN109236347A (en) * 2018-10-19 2019-01-18 湖南信息学院 A kind of mine downhole intelligent cooling device
CN110242345A (en) * 2019-07-15 2019-09-17 仙居夏朗新能源科技有限公司 A kind of circulation spraying equipment sticking dirt for mine hole side wall

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5001906A (en) * 1989-05-04 1991-03-26 Chicago Bridge & Iron Technical Services Company High pressure heat exchanger for cooling high fouling liquids
CN2281508Y (en) * 1997-02-27 1998-05-13 何承伟 Condenser for preventing cooling pipe broken by vibration
CN2486924Y (en) * 2001-05-30 2002-04-17 武汉新世界制冷工业有限公司 Large and medium ammonia refrigeration unit
HU225331B1 (en) * 2003-04-24 2006-09-28 Egi Energiagazdalkodasi Reszve Air cooler system

Cited By (24)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101445839B (en) * 2008-12-24 2012-09-26 浙江省湖州二轻机械总厂 Rotating roller dual cycle cooling system
CN101761353B (en) * 2009-12-18 2011-11-16 大连海事大学 Air cooling system for mine rescue capsule
CN101943018A (en) * 2010-09-29 2011-01-12 煤炭科学研究总院重庆研究院 Recooler for mine
CN101943018B (en) * 2010-09-29 2013-07-24 中煤科工集团重庆研究院 Recooler for mine
CN102080893A (en) * 2010-12-29 2011-06-01 山东绿能燃气实业有限责任公司 Novel ammonia refrigerating device and technical process
CN102269008A (en) * 2011-08-18 2011-12-07 中煤矿山建设集团有限责任公司 System for reducing mine temperature by use of constant-temperature water bearing formation
CN102359387B (en) * 2011-09-01 2013-11-27 中国科学院武汉岩土力学研究所 Temperature-reduction and dehumidification control device
CN102359387A (en) * 2011-09-01 2012-02-22 中国科学院武汉岩土力学研究所 Temperature-reduction and dehumidification control device
CN102678157A (en) * 2011-11-16 2012-09-19 韩雪峰 Refrigeration cooling and dehumidification air conditioner
CN102619551A (en) * 2012-04-25 2012-08-01 中煤科工集团重庆研究院 System and method for realizing long-time uniform cooling in mine high-temperature stope working face
CN102943685A (en) * 2012-10-25 2013-02-27 上海岚毅智能科技有限公司 Method and device for cooling and dehumidifying mine risk-avoiding chamber and escape capsule
CN103410549B (en) * 2012-12-20 2015-10-28 兖州煤业股份有限公司 Utilize the System and method for that residual heat of electric power plant is lowered the temperature for mine ventilation
CN103410549A (en) * 2012-12-20 2013-11-27 兖州煤业股份有限公司 System and method by means of power plant waste heat for conducting aeration cooling on mine
CN103216255B (en) * 2013-04-22 2015-03-11 河南理工大学 Compressed air cold conveying cooling system for mine and cooling method thereof
CN103216255A (en) * 2013-04-22 2013-07-24 河南理工大学 Compressed air cold conveying cooling system for mine and cooling method thereof
CN103485800A (en) * 2013-08-26 2014-01-01 中国矿业大学(北京) Shaft underworkings cooling system
CN103912241A (en) * 2014-04-10 2014-07-09 西安博深煤矿安全科技有限公司 Refrigeration cooling system under mine
CN104005783A (en) * 2014-06-10 2014-08-27 北京中煤矿山工程有限公司 Pneumatic refrigeration device and method for mine
CN104314602A (en) * 2014-08-15 2015-01-28 张惠忠 Underground comprehensive refrigerating method
CN106545355A (en) * 2015-09-23 2017-03-29 武汉星田热环境控制技术有限公司 A kind of spray chamber equipment method for arranging
CN106223992A (en) * 2016-08-29 2016-12-14 北京建筑大学 High-temperature mine local refrigeration system and method
CN106223992B (en) * 2016-08-29 2019-06-28 北京建筑大学 High-temperature mine partial cooling system and method
CN109236347A (en) * 2018-10-19 2019-01-18 湖南信息学院 A kind of mine downhole intelligent cooling device
CN110242345A (en) * 2019-07-15 2019-09-17 仙居夏朗新能源科技有限公司 A kind of circulation spraying equipment sticking dirt for mine hole side wall

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