CN105737306A - Hydrodynamic air conditioner - Google Patents
Hydrodynamic air conditioner Download PDFInfo
- Publication number
- CN105737306A CN105737306A CN201610229115.7A CN201610229115A CN105737306A CN 105737306 A CN105737306 A CN 105737306A CN 201610229115 A CN201610229115 A CN 201610229115A CN 105737306 A CN105737306 A CN 105737306A
- Authority
- CN
- China
- Prior art keywords
- cavity
- water
- rustless steel
- air conditioner
- vaporizer
- 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
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 99
- 229910001220 stainless steel Inorganic materials 0.000 claims abstract description 23
- 239000010935 stainless steel Substances 0.000 claims abstract description 23
- 229910000831 Steel Inorganic materials 0.000 claims description 66
- 239000010959 steel Substances 0.000 claims description 64
- 239000006200 vaporizer Substances 0.000 claims description 35
- 230000003068 static effect Effects 0.000 claims description 22
- 239000003245 coal Substances 0.000 claims description 10
- 238000005265 energy consumption Methods 0.000 abstract 1
- 238000004880 explosion Methods 0.000 abstract 1
- BGPVFRJUHWVFKM-UHFFFAOYSA-N N1=C2C=CC=CC2=[N+]([O-])C1(CC1)CCC21N=C1C=CC=CC1=[N+]2[O-] Chemical compound N1=C2C=CC=CC2=[N+]([O-])C1(CC1)CCC21N=C1C=CC=CC1=[N+]2[O-] BGPVFRJUHWVFKM-UHFFFAOYSA-N 0.000 description 8
- 238000001816 cooling Methods 0.000 description 6
- 241000883990 Flabellum Species 0.000 description 4
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 3
- 229910052802 copper Inorganic materials 0.000 description 3
- 239000010949 copper Substances 0.000 description 3
- 244000010375 Talinum crassifolium Species 0.000 description 2
- 235000015055 Talinum crassifolium Nutrition 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 239000002826 coolant Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- TVEXGJYMHHTVKP-UHFFFAOYSA-N 6-oxabicyclo[3.2.1]oct-3-en-7-one Chemical compound C1C2C(=O)OC1C=CC2 TVEXGJYMHHTVKP-UHFFFAOYSA-N 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000011900 installation process Methods 0.000 description 1
- 230000005426 magnetic field effect Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 208000024891 symptom Diseases 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F5/00—Air-conditioning systems or apparatus not covered by F24F1/00 or F24F3/00, e.g. using solar heat or combined with household units such as an oven or water heater
- F24F5/0007—Air-conditioning systems or apparatus not covered by F24F1/00 or F24F3/00, e.g. using solar heat or combined with household units such as an oven or water heater cooling apparatus specially adapted for use in air-conditioning
- F24F5/0035—Air-conditioning systems or apparatus not covered by F24F1/00 or F24F3/00, e.g. using solar heat or combined with household units such as an oven or water heater cooling apparatus specially adapted for use in air-conditioning using evaporation
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
- E21F3/00—Cooling or drying of air
Landscapes
- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Sustainable Development (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The invention relates to a hydrodynamic air conditioner. The hydrodynamic air conditioner comprises a stainless steel cavity and an evaporator; a cavity water inlet is formed in the upper portion of the stainless steel cavity; a cavity water outlet is formed in the lower portion of the stainless steel cavity; a stainless steel water wheel is arranged in the stainless steel cavity, and stainless steel water wheel blades are arranged at the ends of the stainless steel water wheel; a water wheel shaft is arranged at the center of the stainless steel water wheel, and the two ends of the water wheel shaft are arranged on bearing pedestals; strong magnets are arranged on the edges of the water wheel blades; a stainless steel rotary table is arranged on the outer side of the stainless steel cavity of the water wheel blades provided with the strong magnets, and strong magnets are arranged on the surface of the side, close to the stainless steel cavity, of the stainless steel rotary table; the center of the stainless steel rotary table is connected with one end of a rotating shaft; and a fan is arranged at the other end of the rotating shaft. A mechanical structure is adopted for the hydrodynamic air conditioner, the anti-explosion problem of the hydrodynamic air conditioner cannot be considered, and the hydrodynamic air conditioner is safe and reliable; and meanwhile the structure is simple, operation is convenient, the environment noise is reduced, and electric energy consumption is reduced.
Description
Technical field
The present invention relates to a kind of down-hole conditioner, specifically, relate to a kind of Water power air conditioner.
Background technology
Underground coal mine elevator system operation chamber summer cave room air sultry, driver on duty is when hot environment works, and often take off upper outer garment work.Sometimes affected by the sultry temperature of high temperature and operational error easily occurs, promote to mine hoist safety and bring hidden danger.Cooling in the past takes high-power explosion-proof exhaust fan directly to blow chamber, and not only power consumption is big, and cooling-down effect is inconspicuous, generation noise is directly covered main promotion signal the tinkle of bells and is sent, and sometimes main promotion signal sends for a long time, owing to noise is big, driver on duty does not find in time, affects raising efficiency.In order to provide comfortable working environment to underground coal mine chamber on duty personnel in summer, reducing environmental noise, reduce power consumption, spy have developed Water power air conditioner for the sultry chamber adjusting ambient temperature of underground coal mine high temperature.
Summary of the invention
For above-mentioned deficiency of the prior art, the present invention provides a kind of simple in construction, reduces environmental noise, reduces power consumption, safe and reliable Water power air conditioner.
The technical solution used in the present invention is:
A kind of Water power air conditioner,
Including: rustless steel cavity and vaporizer；
Rustless steel cavity is provided above cavity water inlet；
Rustless steel cavity is arranged below cavity outlet；
In the middle part of rustless steel cavity, both sides are provided with bearing block；
Vaporizer is provided with vaporizer water inlet and vaporizer outlet；
Vaporizer water inlet is connected with vaporizer inlet pipeline；
Cavity water inlet is connected with cavity inlet pipeline；
Vaporizer outlet is connected with cistern respectively through pipeline with cavity water inlet；
Being provided with rustless steel water wheels in rustless steel cavity, stainless steel water wheel end is provided with stainless steel water impeller blade；
Rustless steel water wheels are provided centrally with water wheel axle, and water wheels wheel shaft two ends are arranged on bearing block；Turbine blade edge is provided with kicker magnet；
The rustless steel cavity arranged outside of the turbine blade being provided with kicker magnet has rustless steel rotating disk, and rustless steel rotating disk has kicker magnet near rustless steel cavity side surface configuration；
Rustless steel center of turntable is connected with rotating axle one end；
The middle part rotating axle is arranged on rotation bearing housing；
The other end rotating axle is provided with fan；Fan front is provided with described vaporizer.
Described turbine blade edge is provided with 4 kicker magnets.
Kicker magnet and rustless steel cavity inner wall distance on described turbine blade are 5mm.
Distance between kicker magnet on rustless steel rotating disk and the kicker magnet on turbine blade is 10-15 millimeter.
Kicker magnet magnetic pole on rustless steel rotating disk is contrary with the kicker magnet magnetic pole on turbine blade.
Vaporizer inlet pipeline is connected with underground coal mine static pressure water route.
Cavity inlet pipeline is connected with underground coal mine static pressure water route.
Cavity inlet pipeline is provided with water wheels inlet valve.
The beneficial effect of hinge structure of the present invention:
Water power air conditioner of the present invention, adopts frame for movement, it is possible to be left out Water power air conditioner Explosion-Proof, safe and reliable；Simple in construction simultaneously, easy to operate, in dark vertical garage, room temperature is at 32 degrees Celsius, regulates temperature through air conditioner and can descend to 25 degrees centigrade, provides suitable temperature for operation elevator personnel；Utilize water impeller design in the rustless steel cavity closed, power transmission adopts high-intensity magnetic field, waterleaf wheel shaft separates with outside flabellum axle, solves static pressure water and enters rustless steel inside cavity by rotating shaft (flabellum axle and waterleaf wheel shaft coaxial design enter impeller cavity) seepy question.
Accompanying drawing explanation
Fig. 1 is the structure principle chart of Water power air conditioner of the present invention；
Fig. 2 is the state flow chart of Water power air conditioner of the present invention；
Fig. 3 is the hydrodynamic apparatus structure chart of Water power air conditioner of the present invention.
Critical piece symbol description in accompanying drawing:
In figure:
1, rustless steel cavity 2, impeller
3, impeller bearing 4, impeller kicker magnet
5, rustless steel disk kicker magnet 6, rustless steel disk
7, fan main shaft 8, flabellum spring bearing.
9, cavity water inlet 10, impeller outlet
11, fan 12, main water inlet tube
13, vaporizer 14, vaporizer inlet valve
15, water wheels inlet valve 16, cistern.
Detailed description of the invention
Referring to drawings and Examples, the present invention will be described in detail:
Accompanying drawing 1-3 it can be seen that a kind of Water power air conditioner,
Including: rustless steel cavity 1 and vaporizer 13；
Rustless steel cavity 1 is provided above cavity water inlet 9；
Rustless steel cavity 1 is arranged below cavity outlet 10；
In the middle part of rustless steel cavity 1, both sides are provided with bearing block 3；
Vaporizer 13 is provided with vaporizer water inlet and vaporizer outlet；
Vaporizer water inlet is connected with vaporizer inlet pipeline；
Cavity water inlet 9 is connected with cavity inlet pipeline；
Vaporizer outlet is connected with cistern 16 respectively through pipeline with cavity water inlet 10；
Being provided with rustless steel water wheels in rustless steel cavity 1, stainless steel water wheel end is provided with stainless steel water impeller blade 2；
Rustless steel water wheels are provided centrally with water wheel axle, and water wheels wheel shaft two ends are arranged on bearing block 3；Turbine blade 2 edge is provided with kicker magnet 4；
The rustless steel cavity arranged outside of the turbine blade 4 being provided with kicker magnet 4 has rustless steel rotating disk 6, and rustless steel rotating disk 6 has kicker magnet 5 near rustless steel cavity side surface configuration；
Rustless steel rotating disk 6 center is connected with rotating axle 7 one end；
The middle part rotating axle 7 is arranged on rotation bearing housing 8；
The other end rotating axle 7 is provided with fan 11；Fan 11 front is provided with described vaporizer 13.
Described turbine blade edge is provided with 4 kicker magnets.
Kicker magnet and rustless steel cavity inner wall distance on described turbine blade are 5mm.
Distance between kicker magnet on rustless steel rotating disk and the kicker magnet on turbine blade is 10-15 millimeter.
Kicker magnet magnetic pole on rustless steel rotating disk is contrary with the kicker magnet magnetic pole on turbine blade.
Vaporizer inlet pipeline is connected with underground coal mine static pressure water route.
Cavity inlet pipeline is connected with underground coal mine static pressure water route.
Water power air conditioner of the present invention, utilizes underground coal mine static pressure water as coolant media and actuator air-supply power source.Utilize homemade stainless steel water impeller blade to be arranged on rustless steel inside cavity, 4 kicker magnets are set at impeller spindle turbine blade edge.Kicker magnet and rustless steel cavity inner wall distance 5mm in installation process.Rustless steel cavity arranges water inlet shower nozzle, outlet pipe.Rustless steel containment portion designs bearing position along impeller axial location, arranges 12 millimeters of rotating shaft outputs of diameter, arrange rustless steel rotating disk on output shaft on bearing position, and on rotating disk, on corresponding rustless steel casing impeller, kicker magnet arranges semi-finals magnet.Between four pairs of kicker magnets, relative position is maintained at 12mm.Actuator radiator adopts the thin-wall copper pipe of diameter 10mm to bend, and arranges that aluminum fin-stock is used for expanding cooling water-cooled area in copper pipe surface.0.6MP static pressure water is introduced rustless steel cavity by inlet channel and promotes wheel rotation, it is arranged on impeller four kicker magnets also to rotate, on the rustless steel rotating disk that rustless steel containment portion is arranged, four kicker magnets also follow impeller synchronous rotary, and the power transmission between them is by the high-intensity magnetic field transmission between kicker magnet.The rotating shaft of rustless steel containment portion drives and is arranged on air conditioner fan inside wheel rotation, the static pressure water of temperature 16 degrees Celsius also passes through pipeline simultaneously and enters inside vaporizer being supplied to impeller power, evaporator drain pipe the static pressure water of cooling is rejected to down-hole cistern.Cryogenic air is transported to indoor by blast fan by the evaporator surface temperature of cooling, and indoor temperature can be declined about 8 degree by iterative cycles.
The feature of Water power air conditioner of the present invention is as follows:
1, air conditioner adopts mine dead weight water flow velocity as the power promoting impeller to rotate.
2, when innovative point utilizes wheel rotation, it is arranged on the kicker magnet on impeller and the kicker magnet on external fan axle is attracted each other, wheel rotation, drive fan to rotate.
3, device is novel in design, and air conditioner runs parts and all adopts machine driving, and rotation speed of the fan adopts and controls static pressure penstock speed governing.
Accompanying drawing 1 structure principle chart illustrates:
Water power air conditioner adopts down-hole static pressure water as coolant media, actual measurement down-hole static pressure water temperature is between 18 degrees Celsius-22 degrees Celsius, static pressure water is by 12 points of two-way of main line, it is internal that one tunnel enters vaporizer (copper pipe diameter 8mm) through vaporizer inlet valve 14, vaporizer outlet exit into shaft sump；nullAnother road is through impeller inlet valve 15(4 exceptionally tooth valve) enter stainless steel body 1(wall thickness 2mm stainless steel materials welding)，0.6MP static pressure water promotes turbine blade 2(impeller diameter 17mm) rotate，Impeller edge kicker magnet 4(20mm*15mm) rotate，Be arranged on the rustless steel disk 6(2mm*170mm on fan shaft) to install kicker magnet 5(magnetic poles corresponding on 4 and impeller contrary) with impeller kicker magnet 4 at a distance of 12mm,Owing to four pairs of kicker magnet opposite polarity are installed，Therefore produce to attract magnetic field，Rustless steel disk is also followed rustless steel box house impeller and is rotated，Evaporator fan 11(12mm*280mm) rotate，Room air is brought into vaporizer 13 through aerofoil fan，Air after cooling is got rid of by vaporizer，Iterative cycles reduces cave indoor temperature.
Accompanying drawing 2 state flow chart illustrates:
Down-hole static pressure water is entered block diagram 1 by pipeline inside dark vertical garage night shift room, static pressure moisture two-way, one tunnel devaporation device 6, rustless steel cavity is removed on another road, and static pressure water promotes water wheels to rotate, and is arranged on the kicker magnet on turbine blade 2 and the kicker magnet heteropole on fan shaft attracts each other, water wheels rotate outside fan main shaft 5 and also and then rotate, fan rotates and blows evaporator surface cold air, Cryogenic air is got rid of by 7, reaches cooling chamber Inside Air Temperature.
Accompanying drawing 3 hydrodynamic apparatus block diagram illustrating:
Down-hole static pressure water is entered by cavity water inlet 9, in stainless steel casing 1, static pressure water promotes water wheels 2, and the kicker magnet 4 and then impeller being arranged on turbine blade 2 side rotates, and is arranged on the rustless steel disk 6 side kicker magnet on flabellum support axle and impeller kicker magnet 4 attracts each other.Water wheels are promoted by static pressure water and rotate, and rustless steel disk 6 also rotates, and drive fan shaft 7 to rotate.Rotate by high-intensity magnetic field effect belt wind symptom fan.
Claims (8)
1. a Water power air conditioner, it is characterised in that:
Including: rustless steel cavity and vaporizer；
Rustless steel cavity is provided above cavity water inlet；
Rustless steel cavity is arranged below cavity outlet；
In the middle part of rustless steel cavity, both sides are provided with bearing block；
Vaporizer is provided with vaporizer water inlet and vaporizer outlet；
Vaporizer water inlet is connected with vaporizer inlet pipeline；
Cavity water inlet is connected with cavity inlet pipeline；
Vaporizer outlet is connected with cistern respectively through pipeline with cavity water inlet；
Being provided with rustless steel water wheels in rustless steel cavity, stainless steel water wheel end is provided with stainless steel water impeller blade；
Rustless steel water wheels are provided centrally with water wheel axle, and water wheels wheel shaft two ends are arranged on bearing block；Turbine blade edge is provided with kicker magnet；
The rustless steel cavity arranged outside of the turbine blade being provided with kicker magnet has rustless steel rotating disk, and rustless steel rotating disk has kicker magnet near rustless steel cavity side surface configuration；
Rustless steel center of turntable is connected with rotating axle one end；
The middle part rotating axle is arranged on rotation bearing housing；
The other end rotating axle is provided with fan；Fan front is provided with described vaporizer.
2. Water power air conditioner according to claim 1, it is characterised in that: described turbine blade edge is provided with 4 kicker magnets.
3. Water power air conditioner according to claim 1, it is characterised in that: kicker magnet and rustless steel cavity inner wall distance on described turbine blade are 5mm.
4. Water power air conditioner according to claim 1, it is characterised in that: the distance between the kicker magnet on rustless steel rotating disk and the kicker magnet on turbine blade is 10-15 millimeter.
5. Water power air conditioner according to claim 1, it is characterised in that: the kicker magnet magnetic pole on rustless steel rotating disk is contrary with the kicker magnet magnetic pole on turbine blade.
6. Water power air conditioner according to claim 1, it is characterised in that: vaporizer inlet pipeline is connected with underground coal mine static pressure water route.
7. Water power air conditioner according to claim 1, it is characterised in that: cavity inlet pipeline is connected with underground coal mine static pressure water route.
8. Water power air conditioner according to claim 1, it is characterised in that: cavity inlet pipeline is provided with water wheels inlet valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610229115.7A CN105737306A (en) | 2016-04-14 | 2016-04-14 | Hydrodynamic air conditioner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610229115.7A CN105737306A (en) | 2016-04-14 | 2016-04-14 | Hydrodynamic air conditioner |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105737306A true CN105737306A (en) | 2016-07-06 |
Family
ID=56254188
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610229115.7A Pending CN105737306A (en) | 2016-04-14 | 2016-04-14 | Hydrodynamic air conditioner |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105737306A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109974185A (en) * | 2019-03-29 | 2019-07-05 | 高一博 | A kind of naturally driving Interior Space mechanism of qi |
| CN111023222A (en) * | 2019-12-28 | 2020-04-17 | 龚雪 | Energy-saving environment-friendly heating ventilation air conditioning equipment combined with solar energy |
| CN113565555A (en) * | 2021-03-17 | 2021-10-29 | 陕西正通煤业有限责任公司 | Refrigerant driving integrated cold dissipating device for underground thermal environment treatment |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN85202556U (en) * | 1985-06-24 | 1986-07-30 | 王焕生 | Revolving circle excitation generator |
| CN2099272U (en) * | 1991-08-23 | 1992-03-18 | 邬国根 | Water power air conditioner |
| CN2385249Y (en) * | 1999-06-04 | 2000-06-28 | 张朝元 | Water circulating hydrodynamic fan heat exchanger |
| CN2705619Y (en) * | 2004-02-20 | 2005-06-22 | 张文伟 | Running water generator |
| CN201184660Y (en) * | 2008-02-25 | 2009-01-21 | 翁海峰 | Water cold wind cooling machine |
| CN204730729U (en) * | 2015-06-06 | 2015-10-28 | 广州合众富华节能环保科技有限公司 | A kind of intelligent hydro powered machine used for cooling tower |
| CN205481509U (en) * | 2016-04-14 | 2016-08-17 | 开滦（集团）有限责任公司林南仓矿业分公司 | Hydrodynamic force air conditioner |
-
2016
- 2016-04-14 CN CN201610229115.7A patent/CN105737306A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN85202556U (en) * | 1985-06-24 | 1986-07-30 | 王焕生 | Revolving circle excitation generator |
| CN2099272U (en) * | 1991-08-23 | 1992-03-18 | 邬国根 | Water power air conditioner |
| CN2385249Y (en) * | 1999-06-04 | 2000-06-28 | 张朝元 | Water circulating hydrodynamic fan heat exchanger |
| CN2705619Y (en) * | 2004-02-20 | 2005-06-22 | 张文伟 | Running water generator |
| CN201184660Y (en) * | 2008-02-25 | 2009-01-21 | 翁海峰 | Water cold wind cooling machine |
| CN204730729U (en) * | 2015-06-06 | 2015-10-28 | 广州合众富华节能环保科技有限公司 | A kind of intelligent hydro powered machine used for cooling tower |
| CN205481509U (en) * | 2016-04-14 | 2016-08-17 | 开滦（集团）有限责任公司林南仓矿业分公司 | Hydrodynamic force air conditioner |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109974185A (en) * | 2019-03-29 | 2019-07-05 | 高一博 | A kind of naturally driving Interior Space mechanism of qi |
| CN109974185B (en) * | 2019-03-29 | 2021-04-30 | 廖远杰 | Natural driving type indoor air machine |
| CN111023222A (en) * | 2019-12-28 | 2020-04-17 | 龚雪 | Energy-saving environment-friendly heating ventilation air conditioning equipment combined with solar energy |
| CN113565555A (en) * | 2021-03-17 | 2021-10-29 | 陕西正通煤业有限责任公司 | Refrigerant driving integrated cold dissipating device for underground thermal environment treatment |
| CN113565555B (en) * | 2021-03-17 | 2023-09-19 | 陕西正通煤业有限责任公司 | Underground heat environment treatment refrigerant driving cooling device |
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| PB01 | Publication | ||
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Application publication date: 20160706 |