CN203499715U - Mining air cooling type liquid nitrogen cooling device - Google Patents
Mining air cooling type liquid nitrogen cooling device Download PDFInfo
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- CN203499715U CN203499715U CN201320594591.0U CN201320594591U CN203499715U CN 203499715 U CN203499715 U CN 203499715U CN 201320594591 U CN201320594591 U CN 201320594591U CN 203499715 U CN203499715 U CN 203499715U
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Abstract
The utility model discloses a mining air cooling type liquid nitrogen cooling device. The device is provided to overcome problems that the mine cooling technology at present is complex in apparatus, overhigh in cost, and severe in noise pollution for the environment. The device comprises a liquid nitrogen air cooling type cooling exchanger body, a metal flexible tube, a stainless steel valve, a stainless steel filter and a gas-phase pipeline. The liquid nitrogen air cooling type cooling exchanger body utilizes finned tubes that is externally provided with aluminium alloy, low temperature resistant and bearable in pressure. The lower part of the cooling exchanger body is provided with an inlet hole and an outlet hole. The inlet hole is connected with the stainless steel filter, the other end of the stainless steel filter is connected with the stainless steel valve, and the other end of the stainless steel valve is connected with the metal flexible tube. The outlet hole is connected with the gas-phase pipeline. The gas-phase pipeline is provided with a low temperature long-shaft stainless steel special valve, a hand-operated discharge valve and a safe valve, and the outlet of the other end of the gas-phase pipeline is provided with a metal flexible tube. The inlet hole and the outlet hole are equipped with pressure instruments and thermometers.
Description
Technical field
The utility model relates to the aeration-cooling device in a kind of mine or tunnel, particularly relates to a kind of mining air-cooled type liquid nitrogen cooling device.
Background technology
Present stage, according to the 102nd regulation of < < safety regulations in coal mine > > (2011 editions): mine main getting working face air themperature must not surpass 26 ℃, and electromechanical equipment chamber air themperature must not be over 30 ℃; When the air themperature of getting working face surpasses 30 ℃, when electromechanical equipment chamber air themperature surpasses 34 ℃, must stop operation, during newly-built reorganization and expansion mine design, must carry out mine wind-warm syndrome prediction and calculation, must there be refrigeration cool-down design in overtemperature place, assorts cooling installation.
In mining industry along with day different increasing and the deepening of the coal mine excavation degree of depth, coal mine heat evil problem manifests gradually, and according to field measurement, coal-face temperature is generally 31 ℃～34 ℃, while reaching underground 800 meters, work plane temperature even can reach 37 ℃, and relative humidity is more than 95%, work plane humid, easily bring out the high temperature diseases such as eczema, exanthemv, the normal operation of down-hole electromechanical equipment is also had a strong impact on, and has both endangered worker healthy, affects again mine safety production.For protection workman is physically and mentally healthy and the production efficiency of raising mine, need to take cooling measure to work plane.
At present, the traditional approach that international, domestic mine cooling adopts mainly contains: forced ventilation cooling, chilled water cooling, ice making cooling, gas pressur throttle cooling, air turbine expansion cooling, separate heat pipe cooling.But these traditional mine cooling modes have again shortcoming and deficiency separately.
Forced ventilation cooling: be traditional, the most general mine cooling mode, the method is to utilize blower fan that low temperature, low humidity air are arrived to working space by ajutage forced conveyance, thereby improved to a certain extent scope of operation environment, comprise and reduce air themperature and humidity, increase oxygen content in air.But this kind of method is for deep-well long distance driving face, long because of air supplying distance, country rock temperature is high, has hot water to gush out or during trickle, often difficulty has effective cooling-down effect, is difficult to meet the cooling demand of large-scale deep well ore.
Chilled water cooling: this cool-down method that utilizes cold water, is divided into that ground is centralized, down-hole is centralized, centralized, the distributing of ground, down-hole associating.But the centralized condensation heat in down-hole discharge difficulty, and if thorough solution condensation heat emission problem, construction investment cost sharply rises; And ground is centralized, although the associating of ground, down-hole is centralized from there being economically relative advantage, but because it must be equipped with high-low pressure conversion equipment, and high-low pressure conversion equipment can produce 3～4 ℃ of temperature losses in chilled water transfer process, cause being difficult to reach in practice the cooling-down effect of expection.
Ice making cooling: be exactly mud shape or the granular ice that utilizes ice making field, ground to prepare, by wind-force or waterpower, be transported to the deicing device of down-hole, with the direct cold exchange of backwater of down-hole air-conditioning, the temperature of air-conditioning backwater is reduced, thereby reach the object to working space cooling.But ice making cooling method, however a part of ice pellets, borneol or mud shape ice in the process of carrying, can be attached on duct wall, the time one is long, can blocking pipe, impact is cooling normally.Exactly because also this, ice making cooling system is difficult to operational management and control, is difficult to guarantee continuous cooling requirement and then affects the normal production operation in colliery.
Gas pressur throttle cooling: what gas pressur throttle cooling utilized is the principle that gas adiabatic throttling produces cold effect, by one or more levels compression, humid air in ambient condition is compressed to high pressure conditions, after cooling, by restricting element, will after its adiabatic throttling, be discharged into air conditioning area, allow its level pressure absorb heat, thereby reach the effect of refrigeration.But because it often adopts compound compressor, cause in working environment noise pollution large, and equipment investment and power consumption all very large, be difficult to again fixed equipment near adding work plane, install and operation all has inconvenience.
Air turbine expands and lowers the temperature: be to utilize underground work high-pressure air source used as inflating medium, by turbo-expander constant entropy expansion, lower the temperature, thereby reach the object to mine cooling dehumidifying.But investment and the running cost of turbo-expander are high, generating is complicated, if add high-pressure air source, compresses required cost, and operating cost is higher.
Separate heat pipe cooling: separate heat pipe cooling is located at earth's surface by central chiller plant exactly, the condensation heat of heat pipe is got rid of by central chiller plant, and the steamer of heat pipe is located at down-hole, for extracting downhole cooling chilled water used, but separate heat pipe is applied to the particular surroundings of mine operation, also face the problem that many assistant officers need solve at present.
Utility model content
The technical problems to be solved in the utility model be to provide a kind of simple in structure, economize on resources, a kind of mining air-cooled type liquid nitrogen cooling device that environmental pollution is little.
A kind of mining air-cooled type liquid nitrogen cooling device of the utility model, comprise cold-exchange main body, metal flexible conduit, strainer, gas phase pipeline, wherein cold-exchange main body adopts liquid nitrogen air-cooled type cold-exchange, cold-exchange lower body part has ingate and outlet opening, ingate is connected with strainer, the other end of strainer is connected with stainless steel valve, the other end of stainless steel valve is connected with entrance metal flexible conduit, outlet opening is connected with gas phase pipeline, gas phase pipeline other end exit is provided with outlet metal flexible conduit, on gas phase pipeline, be provided with the special-purpose major axis stainless steel of low temperature special service valve, manual drain valve and safety valve.
A kind of mining air-cooled type liquid nitrogen cooling device of the utility model, what wherein said metal flexible conduit adopted is stainless steel armouring stainless steel metal flexible pipe.
A kind of mining air-cooled type liquid nitrogen cooling device of the utility model, wherein said strainer is ultralow temperature special stainless steel strainer.
A kind of mining air-cooled type liquid nitrogen cooling device of the utility model, wherein said stainless steel valve is major axis ultralow temperature stainless steel valve.
A kind of mining air-cooled type liquid nitrogen cooling device of the utility model, wherein said cold-exchange main body adopts outer aluminium alloys multiple wing, low temperature resistant, pressure-bearing finned tube.
A kind of mining air-cooled type liquid nitrogen cooling device of the utility model, wherein said cold-exchange bottom part body is prized at the bottom of being provided with high strength.
A kind of mining air-cooled type liquid nitrogen cooling device of the utility model, wherein said cold-exchange main body surrounding is provided with high strength retaining frame.
A kind of mining air-cooled type liquid nitrogen cooling device of the utility model, wherein said cold-exchange main body top is provided with trellis protection rack.
A kind of mining air-cooled type liquid nitrogen cooling device of the utility model, wherein said ingate and outlet opening place are all provided with manometer and thermometric instrument, and manometer adopts oil-filled shockproof, universal gauge outfit, drawing type is installed, and installation accessories adopts all steel material; Thermometric instrument is ultralow temperature dedicated digital display formula thermometer.
A kind of mining air-cooled type liquid nitrogen cooling device difference from prior art of the utility model is that the utility model utilizes mine to have the equipment of ventilation system that cold energy is directly sent into getting working face, utilize air energy completely, without the consumption of extra power, electric power, the noise that heat sink produces in the scope of operation is down to below 10 decibels.Cold media adopts liquid nitrogen, and it is the auxiliary product during Coal Chemical Industry is produced, and belongs to waste utilization, not only has cooling function, has both again the anti-fire-extinguishing function concurrently of mine.
Below in conjunction with accompanying drawing, a kind of mining air-cooled type liquid nitrogen cooling device of the utility model is described further.
Accompanying drawing explanation
Fig. 1 is the structural representation of a kind of mining air-cooled type liquid nitrogen cooling device of the utility model;
Fig. 2 is the contour structures front schematic view of a kind of mining air-cooled type liquid nitrogen cooling device of the utility model;
Fig. 3 is the contour structures side schematic view of a kind of mining air-cooled type liquid nitrogen cooling device of the utility model;
Fig. 4 is the contour structures schematical top view of a kind of mining air-cooled type liquid nitrogen cooling device of the utility model.
The specific embodiment
As shown in Figure 1, the structure of a kind of mining air-cooled type liquid nitrogen cooling device of the utility model, comprises liquid nitrogen air-cooled type cold-exchange main body 1, stainless steel armouring stainless steel metal flexible pipe, major axis ultralow temperature stainless steel valve 3, ultralow temperature special stainless steel strainer 4, gas phase pipeline 5.Liquid nitrogen air-cooled type cold-exchange main body 1 adopts outer aluminium alloys multiple wing, low temperature resistant, pressure-bearing finned tube, cold-exchange main body 1 bottom has ingate 6 and outlet opening 7, ingate 6 is connected with ultralow temperature special stainless steel strainer 4, the other end of ultralow temperature special stainless steel strainer 4 is connected with major axis ultralow temperature stainless steel valve 3, and the other end of major axis ultralow temperature stainless steel valve 3 is connected with entrance stainless steel armouring stainless steel metal flexible pipe 2.Outlet opening 7 is connected with gas phase pipeline 5, is provided with the special-purpose major axis stainless steel of low temperature special service valve 8, manual drain valve 9 and safety valve 10 on gas phase pipeline 5, and gas phase pipeline 5 other end exits are also provided with outlet stainless steel armouring stainless steel metal flexible pipe 14.
In conjunction with shown in Fig. 2 to Fig. 4, ingate 6 and outlet opening 7 places of liquid nitrogen air-cooled type cold-exchange main body 1 bottom are all provided with manometer and thermometric instrument, manometer adopts oil-filled shockproof, universal gauge outfit, drawing type is installed, installation accessories and gauge valve all adopt stainless steel, and thermometric instrument adopts ultralow temperature dedicated digital display formula thermometer, below heatproof-200 ℃.Cold-exchange main body 1 bottom prizes 11 at the bottom of being provided with high strength, and when lifting or liftoff propping, longitudinal strain is less than 1 °, prevents that cold-exchange distortion from causing damage.Cold-exchange main body 1 surrounding band high strength retaining frame 12, top band trellis protection rack 13, adapts to mine operation and transportation, avoids cold-exchange to suffer extraneous impact or falling object from high altitude and is damaged.
During mining air-cooled type liquid nitrogen cooling device work, device is arranged on to mine air intake entrance to a lane, liquid nitrogen enters strainer 4 through the entrance stainless steel armouring stainless steel metal flexible pipe 2 at 6 places, ingate, after filtering, enter pressure-bearing finned tube and the gas phase pipeline 5 that changes device for cooling 1 in strainer 4, carry out interchange of heat with surrounding air therein, from environment, absorb heat, last nitrogen is discharged from outlet stainless steel armouring stainless steel metal flexible pipe 14 exits, utilize the draught capacity of air intake lane fan that cold energy is brought into work plane, reach the effect of cooling.
The structure design of a kind of mining air-cooled type liquid nitrogen cooling device of the utility model, effectively solved present stage mine cooling technique device complexity, high cost, to the with serious pollution problem of environmental noise, the utility model utilizes mine to have the equipment of ventilation system that cold energy is directly sent into getting working face, utilize air energy completely, without the consumption of extra power, electric power, the noise that heat sink produces in the scope of operation is down to below 10 decibels.Cold media adopts liquid nitrogen, and it is the auxiliary product during Coal Chemical Industry is produced, and belongs to waste utilization, not only has cooling function, has both again the anti-fire-extinguishing function concurrently of mine.
Above-described embodiment is described preferred embodiment of the present utility model; not scope of the present utility model is limited; do not departing under the prerequisite of the utility model design spirit; various distortion and improvement that those of ordinary skills make the technical solution of the utility model, all should fall in the definite protection domain of the utility model claims.
Claims (9)
1. a mining air-cooled type liquid nitrogen cooling device, comprise cold-exchange main body, metal flexible conduit, strainer, gas phase pipeline, it is characterized in that: cold-exchange main body adopts liquid nitrogen air-cooled type cold-exchange, cold-exchange lower body part has ingate and outlet opening, ingate is connected with strainer, the other end of strainer is connected with stainless steel valve, the other end of stainless steel valve is connected with entrance metal flexible conduit, outlet opening is connected with gas phase pipeline, gas phase pipeline other end exit is provided with outlet metal flexible conduit, on gas phase pipeline, be provided with the special-purpose major axis stainless steel of low temperature special service valve, manual drain valve and safety valve.
2. a kind of mining air-cooled type liquid nitrogen cooling device according to claim 1, is characterized in that: what described metal flexible conduit adopted is stainless steel armouring stainless steel metal flexible pipe.
3. a kind of mining air-cooled type liquid nitrogen cooling device according to claim 1, is characterized in that: described strainer is ultralow temperature special stainless steel strainer.
4. a kind of mining air-cooled type liquid nitrogen cooling device according to claim 1, is characterized in that: described stainless steel valve is major axis ultralow temperature stainless steel valve.
5. a kind of mining air-cooled type liquid nitrogen cooling device according to claim 1, is characterized in that: described cold-exchange main body adopts outer aluminium alloys multiple wing, low temperature resistant, pressure-bearing finned tube.
6. a kind of mining air-cooled type liquid nitrogen cooling device according to claim 5, is characterized in that: described cold-exchange bottom part body is prized at the bottom of being provided with high strength.
7. a kind of mining air-cooled type liquid nitrogen cooling device according to claim 5, is characterized in that: described cold-exchange main body surrounding is provided with high strength retaining frame.
8. a kind of mining air-cooled type liquid nitrogen cooling device according to claim 5, is characterized in that: described cold-exchange main body top is provided with trellis protection rack.
9. a kind of mining air-cooled type liquid nitrogen cooling device according to claim 1, it is characterized in that: described ingate and outlet opening place are all provided with manometer and thermometric instrument, and manometer adopts oil-filled shockproof, universal gauge outfit, drawing type is installed, and installation accessories adopts all steel material; Thermometric instrument is ultralow temperature dedicated digital display formula thermometer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320594591.0U CN203499715U (en) | 2013-09-25 | 2013-09-25 | Mining air cooling type liquid nitrogen cooling device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320594591.0U CN203499715U (en) | 2013-09-25 | 2013-09-25 | Mining air cooling type liquid nitrogen cooling device |
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| CN203499715U true CN203499715U (en) | 2014-03-26 |
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| CN201320594591.0U Expired - Fee Related CN203499715U (en) | 2013-09-25 | 2013-09-25 | Mining air cooling type liquid nitrogen cooling device |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104912585A (en) * | 2015-05-21 | 2015-09-16 | 中国矿业大学 | Liquid nitrogen system and method for nondestructively governing fire area in coal field |
| CN106640174A (en) * | 2017-03-13 | 2017-05-10 | 申隆安全科技（吉林）有限公司 | Device for cooling excavation working face of high-temperature mine through liquid CO2 and method |
-
2013
- 2013-09-25 CN CN201320594591.0U patent/CN203499715U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104912585A (en) * | 2015-05-21 | 2015-09-16 | 中国矿业大学 | Liquid nitrogen system and method for nondestructively governing fire area in coal field |
| CN106640174A (en) * | 2017-03-13 | 2017-05-10 | 申隆安全科技（吉林）有限公司 | Device for cooling excavation working face of high-temperature mine through liquid CO2 and method |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140326 Termination date: 20160925 |
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| CF01 | Termination of patent right due to non-payment of annual fee |