CN203837179U - Pneumatic ice storage air conditioner for underground lifesaving - Google Patents
Pneumatic ice storage air conditioner for underground lifesaving Download PDFInfo
- Publication number
- CN203837179U CN203837179U CN201420229818.6U CN201420229818U CN203837179U CN 203837179 U CN203837179 U CN 203837179U CN 201420229818 U CN201420229818 U CN 201420229818U CN 203837179 U CN203837179 U CN 203837179U
- Authority
- CN
- China
- Prior art keywords
- ice
- pneumatic
- valve
- air
- storage box
- 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 - Fee Related
Links
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B10/00—Integration of renewable energy sources in buildings
- Y02B10/40—Geothermal heat-pumps
Landscapes
- Fluid-Pressure Circuits (AREA)
Abstract
The utility model discloses a pneumatic ice storage air conditioner for underground lifesaving. The pneumatic ice storage air conditioner comprises a mechanical refrigeration module, an ice storage tank module, an air path module and a cold release module, wherein the mechanical refrigeration module is composed of a compressor, a safety valve, an oil separator, a condenser, a liquid accumulator, a dry filter, a liquid injection valve, a thermal bypass valve, an air-liquid separator, a stop valve and the like; the ice storage tank module is composed of a liquid viewing mirror, a thermal expansion valve, an ice storage tank, a stop valve and the like; the air path module is composed of a compressed air pressure source, an air filter, a pressure reducing valve, an atomized lubricator, a pneumatic motor, a flow regulating valve, a pneumatic condensate fan, a muffler and the like; the cold release module is composed of a compressed air steel cylinder, an adjusting hand valve, a pressure regulator, a pneumatic fan, a muffler and the like. The pneumatic ice storage air conditioner for underground lifesaving is high in refrigeration efficiency; underground pressure air is adopted as an air source, so that a power source is not needed in the operating process; a supercooling design is adopted by a refrigerating system; continuous running of the system can be achieved, and automatic control over start and stop of a pressing machine is not needed; the compressor and the pneumatic motor are connected with each other in a belt drive mode, assembly efficiency is high, and the drive ratio is controllable.
Description
Technical field
The utility model relates to down-hole lifesaving aircondition, is specifically related to the pneumatic ice cold accumulation air conditioning device of a kind of down-hole lifesaving.
Background technology
Down-hole lifesaving is generally used for down-hole survival capsule and refuge chamber with aircondition, and this series products mainly adopts ice-reserving refrigeration and two kinds of modes of liquid carbon dioxide refrigeration at present.Along with distinctization of survival capsule and refuge chamber technology and standard, colliery is to reduce to greatest extent the generation of secondary injury to the requirement of survival capsule and refuge chamber refrigeration now.Liquid carbon dioxide refrigeration is limited because of the cold that single bottle of carbon dioxide can store, and required gas-storing capacity is very large, and gas cylinder quantity is various.Press single air cylinder 70L and calculate, every bottle of open ended liquid carbon dioxide weight is: 70 * 0.6=42kg.An adult man heat gain from occupant is taken as 108W, and the heat dissipation capacity of a day is: 108 * 3.6 * 24=9331.2kJ.Every kilogram of carbon dioxide will absorb the heat of 292 kJ the phase transition process that becomes gaseous state from liquid state.Take the balance one people heat dissipation capacity of a day, need the gas cylinder quantity of 70L to be: 9331.2 42=0.76 bottles of ÷ 292 ÷.For 100 people's refuge chamber, meet 96 hours even longer Discharging time indexs of lifesaving chamber GB regulation, at least need the gas cylinder quantity of 70L to be: 100 * 0.76 * 4=304 bottles.If the thermal source of other various device in consideration chamber, and will release cool time index and extend to 106h, the gas cylinder quantity needing can increase again much.So many gas cylinder is installed together, and connecting line is intricate, and gas leakage problem can not be ignored, and has the hidden danger that larger secondary disaster occurs, and its application is subject to certain restrictions.
Electronic ice-reserving refrigeration is the main flow in current ice-storage air-conditioning, but because of the Special use environment in colliery, the explosion-proof performance of refrigerating plant has been proposed to strict requirement.This specific (special) requirements has strengthened the technical difficulty of this product, has improved equipment cost, and safeguards also more difficult.In addition, because the use of battery in down-hole at present still has problems, under larger cooling load, release the required total power consumption of air-cooler continuous service also very considerable, these have all hindered electric drive mode and have released the application in air-cooler at down-hole ice cold accumulation air conditioning device simultaneously.
Utility model content
The purpose of this utility model is to provide the pneumatic ice cold accumulation air conditioning device of a kind of down-hole lifesaving.Its refrigerating efficiency is high; Adopt down-hole to press wind as source of the gas, in the course of work, do not need to adopt power supply; Refrigeration system adopted cold design; Feasible system continuous operation, without automatically controlling press start and stop; Between compressor and air motor, by band driving coupling, efficiency of assembling is high, gearratio is controlled.
For achieving the above object, the utility model has adopted following technical scheme:
The pneumatic ice cold accumulation air conditioning device of down-hole lifesaving, include ice-storage box, ice-storage box comprises ice-storage box casing, evaporation coil is installed in ice-storage box casing and releases cold air duct, it is characterized in that: include compressor, the output access oil eliminator of compressor, condenser coil in the outlet side access condenser of oil eliminator, in the output access reservoir of condenser coil, sub-cooling coil in the output access condenser of reservoir, the output access device for drying and filtering of sub-cooling coil, in the evaporation coil of the output access ice-storage box of device for drying and filtering, two stop valves are installed on described device for drying and filtering and ice-storage box connecting line successively, liquid-sighting glass and heating power expansion valve, the output pipe of evaporation coil access gas-liquid separator in described ice-storage box, two stop valves are installed on the output pipe of described evaporation coil, the oil outlet end of described oil eliminator gathers in rear access compressor by the output pipe of pipeline and gas-liquid separator.Include pneumatic supply, on the output pipe of pneumatic supply, be parallel with branch road one and branch road two, described branch road one access air motor, between air motor and compressor, by band, be in transmission connection, the pneumatic condensation fan of branch road two access condensers, the output pipe of pneumatic condensation fan and the output pipe of air motor converge rear access silencer one, and the output of silencer one opens wide.Comprise compressed-air actuated gas cylinder is housed, on the output pipe of gas cylinder, be provided with successively and regulate hand valve, pressure regulator, the output pipe access pneumatic fan of gas cylinder, the output access silencer two of pneumatic fan, the output of silencer two opens wide, described pneumatic fan is arranged on ice-storage box and releases cold air duct air outlet place, drives air to flow through and releases cold air duct, takes the cold storing in ice-storage box out of.
The described pneumatic ice cold accumulation air conditioning device of down-hole lifesaving, it is characterized in that: in the evaporation coil of the output of device for drying and filtering by a plurality of ice-storage boxes of pipeline access in parallel, in each ice-storage box, the output pipe of evaporation coil gathers in the gas-liquid separator described in rear access.
The described pneumatic ice cold accumulation air conditioning device of down-hole lifesaving, is characterized in that: the one or more ice-storage boxes of the outer series connection of described ice-storage box, described pneumatic fan is arranged on outside ice-storage box and releases cold air duct air outlet place, drives air-flow to take cold out of.
The described pneumatic ice cold accumulation air conditioning device of down-hole lifesaving, is characterized in that: on the connecting line of described compressor and oil eliminator, safety valve is installed; Between the connecting line of described oil eliminator and condenser and the output pipe of evaporation coil, heating power by-passing valve is installed; Between the connecting line of super-cooling pipeline and device for drying and filtering and the output pipe of evaporation coil, liquid injection valve is installed.
The described pneumatic ice cold accumulation air conditioning device of down-hole lifesaving, is characterized in that: on the output pipe of described pneumatic supply, be connected with air cleaner, pressure-reducing valve and oil sprayer in turn, on described branch road one and branch road two, be separately installed with flow control valve.
The described pneumatic ice cold accumulation air conditioning device of down-hole lifesaving, is characterized in that: flow control valve, air cleaner, pressure-reducing valve and oil sprayer are installed respectively on described branch road one and branch road two successively.
The compressor of described open-type, safety valve, oil eliminator, condenser, reservoir, device for drying and filtering, liquid injection valve, heating power by-passing valve, gas-liquid separator, stop valve etc. form mechanical refrigeration module; Liquid-sighting glass, heating power expansion valve, ice-storage box (comprise evaporation coil, ice-storage box casing, release cold air duct etc.), stop valve etc. form ice-storage box module; Compressed air pneumatic supply, air cleaner, pressure-reducing valve, oil sprayer, air motor, flow control valve, pneumatic condensation fan, silencer etc. form gas path module; The compositions such as tank of compressed air, adjusting hand valve, pressure regulator, pneumatic fan, silencer are released cold module.
Gas path module of the present utility model is divided into two branch roads, adopts down-hole to press wind to drive air motor running as source of the gas.Wherein in a branch road, air motor turns round by band transmission drive compression machine, in another branch road, blower fan is directly fixed on air motor, motor directly drives condensation fan to take away the heat that condenser distributes, jointly maintain the normal operation of refrigeration plant, in the course of work, do not need to adopt power supply, safe.
As shown from the above technical solution, under mine normal operating conditions, start refrigeration mode, by colliery compressed-air system, drive air motor to drive compressor operation, cold-producing medium directly carries out ice-reserving at ice-storage box dish in-tube evaporation, and heat transfer efficiency is high.When there is catastrophe in down-hole, system proceeds to ice-storage box and lets cool pattern, at this moment utilize the compressed air-driven in gas cylinder to release cold pneumatic fan, by forced convertion, circulate and by ice-storage box, release cold air duct the cold of storage is emitted, to keep temperature, humidity suitable in survival capsule or refuge chamber.
Wherein, refrigeration system has adopted crosses cold design, effectively avoids cold-producing medium, before flowing into heating power expansion valve, shwoot occurs, and this design makes the length of pipe between mechanical refrigeration module and ice-storage box module can have a greater change scope; Heating power expansion valve is directly fixed on ice-storage box casing, makes the distance between itself and evaporation coil realize the shortizationest, has reduced the pressure loss of cold-producing medium in pipeline, has effectively improved the refrigerating efficiency of aircondition; Also pipe-line system has been carried out to special design, by heating power by-passing valve, realize higher pressure refrigerant gas bypass to compressor return air pipeline, avoid suction pressure of compressor too low, the automatic energy of having realized aircondition regulates and refrigeration system continuous operation, without automatically controlling press start and stop, extended service life; By a liquid injection valve is installed between cold-producing medium subcooled liquid pipeline and suction line, compressor exhaust temperature is responded, guarantee that compressor keeps suitable delivery temperature under the operating mode of high compression ratio; Between compressor and air motor, adopt band driving coupling, realize transmission of power, compare shaft coupling and connect, there is installation accuracy and require low, efficiency of assembling advantages of higher, can be by selecting suitable transmission recently to guarantee the Proper Match between air motor output characteristics and compressor load characteristic.
The beneficial effects of the utility model are embodied in: 1) gas path module adopts down-hole to press wind as source of the gas, does not need to adopt power supply in the course of work, safe; 2) refrigeration system adopted cold design, has avoided cold-producing medium to enter heating power expansion valve shwoot occurs before, and length of pipe is changed to strong adaptability; 3) heating power expansion valve is directly fixed on ice-storage box casing, and the distance of shortization and evaporation coil, has effectively improved refrigerating efficiency; 4), by special pipeline system design, feasible system continuous operation, without automatically controlling press start and stop; 5) between compressor and air motor, pass through band driving coupling, realize transmission of power, compare shaft coupling and connect, there is the advantages such as efficiency of assembling is high, gearratio is controlled; 6) combination flexibility and changeability, is adapted to varying environment requirement.
Accompanying drawing explanation
Fig. 1 is systematic schematic diagram of the present utility model.
Fig. 2 is the enforcement illustration of the utility model ice-storage box ice-reserving in parallel.
Fig. 3 is that cold enforcement illustration is released in the series connection of the utility model ice-storage box.
Fig. 4 is the enforcement illustration of the utility model gas path module source of the gas adjusting device parallel connection.
The specific embodiment
Below in conjunction with accompanying drawing, the utility model is described further:
Fig. 1 is the utility model systematic schematic diagram, and its specific works mode is as follows:
The utility model is by mechanical refrigeration module, ice-storage box module, gas path module and release cold module and form.
Mechanical refrigeration module is comprised of opened compressor 10, safety valve 11, oil eliminator 12, condenser 13, reservoir 14, device for drying and filtering 15, liquid injection valve 16, heating power by-passing valve 17, gas-liquid separator 19, stop valve 18 etc.
Ice-storage box module is comprised of liquid-sighting glass 21, heating power expansion valve 22, ice-storage box 23, stop valve 20 etc.Wherein, ice-storage box comprises evaporation coil, ice-storage box casing, releases the assemblies such as cold air duct.
Gas path module is comprised of compressed air pneumatic supply 30, air cleaner 31, pressure-reducing valve 32, oil sprayer 33, air motor 34, flow control valve 35, pneumatic condensation fan 36, silencer 1 etc.After pressure-reducing valve 32, Pressure gauge is set, whether the gas pressure that enters air motor 34 and pneumatic condensation fan 36 for observing meets the demands.In actual use, the function of air cleaner 31, pressure-reducing valve 32 and 33 3 assemblies of oil sprayer is integrated conventionally, is referred to as filter, pressure-reducing valve, oil sprayer three linked piece.
Releasing cold module is comprised of tank of compressed air 40, adjusting hand valve 41, pressure regulator 42, pneumatic fan 43, silencer 2 44 etc.Wherein tank of compressed air 40 is generally many bottles of parallel connections in actual use.After pressure regulator 42, Pressure gauge is set, for observe enter pneumatic fan 43 gas pressure whether within the limits prescribed.
Under ice-reserving operating mode, mechanical refrigeration module, ice-storage box module and gas path module are worked jointly, make the water freezing in ice-storage box store cold.In gas path module, pneumatic supply 30 is connected with down-hole compressed-air system, and compressed air is flowed through after filter, pressure-reducing valve, the filtration of oil sprayer three linked piece, pressure regulation, oiling, is divided into two branch roads.Wherein in a branch road, compressed air flows into air motor 34, by band transmission, drive opened compressor 10 operations, in another branch road, compressed air enters air motor driving condensation fan 36 and takes away the heat that condenser distributes, gas flow in each branch road is controlled by flow control valve 35, the low-pressure gas of finally getting rid of from motor imports same pipeline, after silencer one 37 noise reduction process, enters environment.The major function of air motor is that the pressure energy of Compressed Gas is converted to mechanical energy.Between compressor 10 and air motor 34, adopt band driving coupling, realize transmission of power, compare shaft coupling and connect, there is installation accuracy and require low, efficiency of assembling advantages of higher, can be by selecting suitable transmission recently to realize the Proper Match of air motor 34 and compressor 10.
In mechanical refrigeration module, high-temperature high-pressure refrigerant gas is discharged from compressor 10, through safety valve 11, if refrigerant pressure is higher than safety valve setting value, just enter environment, the effect of the high voltage protective of safety valve performance here.The cold-producing medium oil eliminator 12 of then flowing through, lubricating oil is got back to compressor after separating treatment.After condenser 13 heat radiations, cold-producing medium is cooled, and becomes liquid, flows into reservoir 14.Here, system has adopted crosses cold design, and cold-producing medium is inflow heat exchanger super-cooling pipeline again, makes the refrigerant liquid that enters device for drying and filtering 15 have larger degree of supercooling, has effectively avoided cold-producing medium, before flowing into heating power expansion valve, shwoot occurs.Subcooled liquid by the stop valve 18 and 20 in mechanical refrigeration module and ice-storage box module after, the liquid-sighting glass 21 of flowing through, after entering heating power expansion valve 22 throttlings, flow into the evaporation coil in ice-storage box 23, by evaporation endothermic, make the water freezing in ice-storage box, then flow through behind stop valve 18 and 20, enter gas-liquid separator 19, finally get back to compressor 10, complete kind of refrigeration cycle.Heating power by-passing valve 17 in refrigeration system is used to higher pressure refrigerant gas bypass to compressor return air pipeline, when avoiding in ice-storage box that the temperature of ice is lower, suction pressure of compressor is too low, the automatic energy of having realized aircondition regulates and refrigeration system continuous operation, without automatically controlling press start and stop; Liquid injection valve 16 is installed between cold-producing medium subcooled liquid pipeline and suction line, is used for compressor exhaust temperature to control, and delivery temperature can be not too high under the operating mode of high compression ratio to guarantee compressor.
Release under cold operating mode, open and regulate hand valve 41, utilize the compressed air-driven pneumatic fan 43 in tank of compressed air 40, the cold air duct of releasing circulating in ice-storage box 23 by forced convertion is emitted the cold of storage, to keep temperature, humidity suitable in survival capsule or refuge chamber.By regulating pressure regulator 42, guarantee that the gas pressure that enters pneumatic fan 43 meets the demands.Finally, gas enters environment after silencer 2 44 noise reduction process.
In Fig. 1, the utility model embodiment is at ice-reserving with release and only have single ice-storage box under cold operating mode; In gas path module, compressed air is first flowed through after filter, pressure-reducing valve, the filtration of oil sprayer three linked piece, pressure regulation, oiling, is just divided into two branch roads.Combination concrete in practical application can freely configure according to environmental requirement, and Fig. 2, Fig. 3 and Fig. 4 are exactly conventional embodiment of the present utility model.
Fig. 2 is the enforcement illustration of the utility model ice-storage box ice-reserving in parallel.Ice-storage box is in parallel, shares a mechanical refrigeration module, can complete successively ice-reserving, and both process of refrigerastions are independent of each other.And when maintaining ice-reserving amount, mechanical refrigeration module can be simultaneously for two ice-storage boxes provide cold.
Fig. 3 is that cold enforcement illustration is released in the series connection of the utility model ice-storage box.Ice-storage box is connected the cold air duct of releasing of correspondence by pipeline, shares a pneumatic fan, realizes the release of ice-storage box cold.Large because releasing cold air duct caliber, windage is less, has so just saved pneumatic fan cost and compressed air air consumption.
Fig. 4 is the enforcement illustration of the utility model gas path module source of the gas adjusting device parallel connection.Compare with former scheme, the present embodiment figure has carried out parallel connection by filter, pressure-reducing valve, oil sprayer three linked piece, and before flow control valve is placed in to source of the gas adjusting device, by observing the Pressure gauge at pressure-reducing valve place, can avoid the crushing impact of flow control valve.
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 (6)
1. the pneumatic ice cold accumulation air conditioning device of down-hole lifesaving, includes ice-storage box, and ice-storage box comprises ice-storage box casing, evaporation coil is installed in ice-storage box casing and releases cold air duct, it is characterized in that:
Include compressor, the output access oil eliminator of compressor, condenser coil in the outlet side access condenser of oil eliminator, in the output access reservoir of condenser coil, sub-cooling coil in the output access condenser of reservoir, the output access device for drying and filtering of sub-cooling coil, in the evaporation coil of the output access ice-storage box of device for drying and filtering, two stop valves are installed on described device for drying and filtering and ice-storage box connecting line successively, liquid-sighting glass and heating power expansion valve, the output pipe of evaporation coil access gas-liquid separator in described ice-storage box, two stop valves are installed on the output pipe of described evaporation coil, the oil outlet end of described oil eliminator gathers in rear access compressor by the output pipe of pipeline and gas-liquid separator,
Include pneumatic supply, on the output pipe of pneumatic supply, be parallel with branch road one and branch road two, described branch road one access air motor, between air motor and compressor, by band, be in transmission connection, the pneumatic condensation fan of branch road two access condensers, the output pipe of pneumatic condensation fan and the output pipe of air motor converge rear access silencer one, and the output of silencer one opens wide;
Comprise compressed-air actuated gas cylinder is housed, on the output pipe of gas cylinder, be provided with successively and regulate hand valve, pressure regulator, the output pipe access pneumatic fan of gas cylinder, the output access silencer two of pneumatic fan, the output of silencer two opens wide, and described pneumatic fan is arranged on ice-storage box and releases cold air duct air outlet place.
2. the pneumatic ice cold accumulation air conditioning device of down-hole according to claim 1 lifesaving, it is characterized in that: in the evaporation coil of the output of device for drying and filtering by a plurality of ice-storage boxes of pipeline access in parallel, in each ice-storage box, the output pipe of evaporation coil gathers in the gas-liquid separator described in rear access.
3. the pneumatic ice cold accumulation air conditioning device of down-hole according to claim 1 lifesaving, is characterized in that: the one or more ice-storage boxes of the outer series connection of described ice-storage box, described pneumatic fan is arranged on outside ice-storage box and releases cold air duct air outlet place.
4. the pneumatic ice cold accumulation air conditioning device of down-hole according to claim 1 lifesaving, is characterized in that: on the connecting line of described compressor and oil eliminator, safety valve is installed; Between the connecting line of described oil eliminator and condenser and the output pipe of evaporation coil, heating power by-passing valve is installed; Between the connecting line of super-cooling pipeline and device for drying and filtering and the output pipe of evaporation coil, liquid injection valve is installed.
5. the pneumatic ice cold accumulation air conditioning device of down-hole according to claim 1 lifesaving, it is characterized in that: on the output pipe of described pneumatic supply, be connected with air cleaner, pressure-reducing valve and oil sprayer in turn, on described branch road one and branch road two, be separately installed with flow control valve.
6. the pneumatic ice cold accumulation air conditioning device of down-hole according to claim 1 lifesaving, is characterized in that: flow control valve, air cleaner, pressure-reducing valve and oil sprayer are installed respectively on described branch road one and branch road two successively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420229818.6U CN203837179U (en) | 2014-05-06 | 2014-05-06 | Pneumatic ice storage air conditioner for underground lifesaving |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420229818.6U CN203837179U (en) | 2014-05-06 | 2014-05-06 | Pneumatic ice storage air conditioner for underground lifesaving |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203837179U true CN203837179U (en) | 2014-09-17 |
Family
ID=51515009
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420229818.6U Expired - Fee Related CN203837179U (en) | 2014-05-06 | 2014-05-06 | Pneumatic ice storage air conditioner for underground lifesaving |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203837179U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103982965A (en) * | 2014-05-06 | 2014-08-13 | 合肥天鹅制冷科技有限公司 | Pneumatic ice storage air conditioning device for downhole rescue |
| CN108421745A (en) * | 2018-05-18 | 2018-08-21 | 湖北西塞山发电有限公司 | It is a kind of to integrate the high-voltage support pillar type insulator cleaning device for cleaning and gathering dust |
-
2014
- 2014-05-06 CN CN201420229818.6U patent/CN203837179U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103982965A (en) * | 2014-05-06 | 2014-08-13 | 合肥天鹅制冷科技有限公司 | Pneumatic ice storage air conditioning device for downhole rescue |
| CN108421745A (en) * | 2018-05-18 | 2018-08-21 | 湖北西塞山发电有限公司 | It is a kind of to integrate the high-voltage support pillar type insulator cleaning device for cleaning and gathering dust |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103982965A (en) | Pneumatic ice storage air conditioning device for downhole rescue | |
| CN203240832U (en) | Air-cooled condensation refrigerating unit | |
| CN202152688U (en) | Cool storage system for escape capsule | |
| CN105135725B (en) | A kind of single compressor the two-stage dynamic refrigeration and cold accumulation air-conditioning system and its refrigerating method | |
| CN102837634B (en) | Vehicle-mounted refrigeration carriage with three-temperature areas | |
| CN110371315B (en) | Cold-storage low-energy-consumption aircraft ground air conditioner | |
| CN103499162A (en) | Low-temperature air-cooled screw cold and hot water unit | |
| CN200974474Y (en) | Electric automobile battery bag cooling system | |
| CN203837179U (en) | Pneumatic ice storage air conditioner for underground lifesaving | |
| CN111503913A (en) | Double-mechanism ultralow-temperature refrigeration vehicle-mounted refrigeration system | |
| CN203067010U (en) | Double-cold-source underground air conditioning device | |
| CN203964422U (en) | The pneumatic aircondition of a kind of down-hole local temperature control | |
| CN102857029B (en) | Intelligent cooling device of waste heat of waste gas of diesel generating set and method | |
| CN202493283U (en) | Air cooling, dehumidification and filtering system of underground escape capsule | |
| CN202267260U (en) | Screw compressor refrigerating system | |
| CN202756249U (en) | Oil supply system of screw type cooling compressor unit | |
| CN203501543U (en) | Low-temperature air cooling screw rod cold-hot water set | |
| CN208365702U (en) | A kind of energy-saving air conditioning system | |
| CN103182978B (en) | A kind of Novel ice-storage airplane air conditioner vehicle | |
| CN212242895U (en) | Air conditioning device with condensation and evaporation coupling | |
| CN206347775U (en) | A kind of screw air-conditioning system | |
| CN213873292U (en) | Novel throttling conversion device suitable for double cold source units | |
| CN205137767U (en) | Multi -functional cold storage air conditioner | |
| CN103292388B (en) | Refrigerating system for engine room | |
| CN103057727A (en) | Air cooling device for airplane ground ventilation |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140917 Termination date: 20200506 |