CN102011604B - Movable mine ice-storage air conditioner - Google Patents
Movable mine ice-storage air conditioner Download PDFInfo
- Publication number
- CN102011604B CN102011604B CN2010106024463A CN201010602446A CN102011604B CN 102011604 B CN102011604 B CN 102011604B CN 2010106024463 A CN2010106024463 A CN 2010106024463A CN 201010602446 A CN201010602446 A CN 201010602446A CN 102011604 B CN102011604 B CN 102011604B
- Authority
- CN
- China
- Prior art keywords
- refrigeration
- casing
- ice
- pipe
- cold
- 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
- 238000005057 refrigeration Methods 0.000 claims abstract description 83
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 62
- 238000005065 mining Methods 0.000 claims abstract description 16
- 239000007921 spray Substances 0.000 claims description 14
- 238000004378 air conditioning Methods 0.000 claims description 13
- 241000009298 Trigla lyra Species 0.000 claims description 12
- 230000007306 turnover Effects 0.000 claims description 3
- 230000000694 effects Effects 0.000 abstract description 5
- 239000000428 dust Substances 0.000 abstract 2
- 230000001105 regulatory effect Effects 0.000 abstract 1
- 238000001816 cooling Methods 0.000 description 13
- 239000003595 mist Substances 0.000 description 3
- 238000009412 basement excavation Methods 0.000 description 2
- 239000003245 coal Substances 0.000 description 2
- 238000005265 energy consumption Methods 0.000 description 2
- 230000002631 hypothermal effect Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000011435 rock Substances 0.000 description 2
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 239000008398 formation water Substances 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
- 230000009897 systematic effect Effects 0.000 description 1
Images
Abstract
The invention discloses a movable mine ice-storage air conditioner, which comprises a refrigeration cabinet and an ice-storage cabinet, wherein the refrigeration cabinet and the ice-storage cabinet are respectively arranged on a movable frame chassis, and an outlet of the ice-storage cabinet is connected with the refrigeration cabinet by a valve control pipe; the refrigeration cabinet is provided with two water outlets, one water outlet is connected with the ice-storage cabinet by a valve control pipe, and the other water outlet is connected with a tee joint of a water outlet pipeline of the ice-storage cabinet by a valve control pipe; the inlet and outlet valve control pipes for connecting the refrigeration cabinet and the ice-storage cabinet are respectively provided with a water pump and a flow meter, and the two water outlet pipelines and an inlet pipeline of the refrigeration cabinet are respectively provided with a regulating valve. The movable mine ice-storage air conditioner disclosed by the invention has the advantages that: the problem of underground high temperature can be solved, and the produced low temperature water can be reused for the dust removal of mining equipment, therefore, the air conditioner can simultaneously achieve the effects of temperature reduction and dust removal; and the air conditioner can be engaged with tramcars, therefore, the convenient movement and easy operation of the air conditioner can be realized, thereby effectively satisfying the requirements for temperature reduction under the condition that the situation of a mine working surface is changeable, and then achieving the effect of efficient energy utilization.
Description
Technical field:
The present invention relates to the mine cooling technical field, especially a kind of mining mobile ice-storage air-conditioning.
Background technology:
Along with the increase of China's pit mining degree of depth, because heat release, diffusion and the other reasons of the various thermals source in down-hole make that the number of high-temperature mine is increasing, and the extent of injury are on the rise also.
The measure that present deep well temperature reduction is mainly taked has: artificial hypothermia and the cooling of increase wind flow.Mainly contain for the artificial hypothermia: cooling system and underground concentrated cooling system are concentrated in ground.It is to adopt pipe special that cooling system is concentrated on ground: airduct, water pipe or slob (slurry) pipe carries cold to down-hole to lower the temperature, and the defeated cold energy consumption of this type systematic is very big, and cooling-down effect is undesirable.Underground centralized cooling system also need take a large amount of places, down-hole, has improved the shaft building investment, and the difficult eliminating of condensation heat, and refrigeration is not obvious.No matter be the propelling that all there are mining face under mine in ground or underground centralized air-conditioning, make the cold fed distance increase the situation that the refrigeration cool-down effect reduces greatly.In addition, be a kind of simple cool-down method though increase air quantity, its cooling extent is limited, it receives the influence of factors such as EAT and country rock temperature, when the country rock temperature reaches uniform temperature, increases air quantity with inoperative.
From the comparison of above-mentioned measure, can find out; The very flexible of existing measure, poor refrigerating efficiency can not change along with the actual conditions of coal mine excavation and move, and can't satisfy the demand of mine cooling; And cooling system is huge; The laying amount of defeated cooling system pipeline is bigger, and is expensive bigger, and energy consumption is also very big.
Summary of the invention:
The objective of the invention is to overcome the weak point in the prior art, provide that a kind of simple in structure, flexibility is strong, the mining mobile ice-storage air-conditioning of good refrigeration effect.
Mining mobile ice-storage air-conditioning of the present invention; Comprise the refrigeration case and the cold-accumulating box that are located at respectively on the removable frame base; The outlet of cold-accumulating box links to each other with refrigeration case through the valve control piper; Refrigeration case is provided with two delivery ports, and delivery port connects cold-accumulating box through the valve control piper, and the threeway of another delivery port in the outlet pipeline of valve control piper and cold-accumulating box links to each other; Be equipped with water pump and flow meter on the turnover valve control piper that cold-accumulating box links to each other with refrigeration case, be equipped with control valve on two water outlet pipelines of refrigeration case and the suction line.
Described cold-accumulating box comprises casing, the cold-accumulating box sparge pipe in water inlet gets into casing that ice cube is housed, and the bottom of casing is provided with delivery port, and the top of casing is provided with the upper cover plate that is easy to open.
Said refrigeration case comprises the refrigeration casing; The refrigeration casing is provided with air intake, air outlet, and air outlet one side is provided with blower fan, is provided with the spray chamber that is surrounded by water inlet pipe in the refrigeration casing; Water inlet pipe is provided with the refrigeration case nozzle; The refrigeration casing is provided with first return pipe and second return pipe, and the bottom of water inlet pipe is provided with bleed off pipe, and the bottom of refrigeration casing is provided with blow-off pipe.
Said refrigeration case comprises the refrigeration casing, and the refrigeration casing is provided with air intake, air outlet, and air outlet one side is provided with blower fan; Be provided with the spray chamber that surrounds by water inlet pipe in the refrigeration casing; Be provided with surface cooler in the spray chamber, water inlet pipe is provided with the refrigeration case nozzle, and the refrigeration casing is provided with first return pipe and second return pipe; The bottom of water inlet pipe is provided with bleed off pipe, and the bottom of refrigeration casing is provided with blow-off pipe.
Described refrigeration casing is provided with and is used to the folding upper lid plate observing, measure and clean.
Beneficial effect: mining mobile ice-storage air-conditioning of the present invention can apply to high temperature deep well; Actual conditions in conjunction with down-hole getting working face complicated and changeable; Can not only reduce the temperature of down-hole high temperature air; And the water at low temperature that is produced is also capable of using in the spray of extractive equipment, realizes the dual-use function of cooling and dedusting.Be connected mutually with orbit mine car, can realize convenient mobile, handled easily use, effectively satisfied the changeable cooling requirement of coal mine excavation face condition, reached the efficient utilization of energy.Its equipment is expensive few, and efficiency is high, simple in structure, compact, and flexibility and applicability are strong, and operation, easy for installation can be satisfied complex environment requirement under the mine, has practicality widely.
Description of drawings:
Fig. 1 is the system drawing of portable mining ice-storage air-conditioning among the present invention;
Fig. 2 is frozen water spray atomizing refrigeration case structural representation 1 figure among the present invention;
Fig. 3 is spray sprayed film attitude refrigeration case structural representation 2 figure among the present invention;
Fig. 4 is a cold-accumulating box structural representation of the present invention.
Among the figure: 1-refrigeration case, 2-cold-accumulating box, 3-control valve, 4-water pump, 5-flow meter, 1-1-air outlet; The 1-2-blower fan, 1-3-watertight shutter, 1-4-refrigeration case nozzle, 1-5-spray chamber, 1-6-air intake; The 1-7-water inlet pipe, 1-8-first return pipe, 1-9-bleed off pipe, 1-10-blow-off pipe, 1-11-second return pipe; The 1-12-surface cooler, 2-1-cold-accumulating box water inlet pipe, 2-2-cold-accumulating box outlet pipe, 2-3-ice cube, 2-4-cold-accumulating box sparge pipe.
The specific embodiment:
Below in conjunction with the embodiment in the accompanying drawing the present invention is done further description:
Embodiment one, as shown in Figure 1; Mining mobile ice-storage air-conditioning of the present invention; Mainly constitute by refrigeration case 1, cold-accumulating box 2, control valve 3, water pump 4 and flow meter 5; Refrigeration case 1 is located at respectively on the removable frame base with cold-accumulating box 2, and the outlet of cold-accumulating box 2 links to each other with refrigeration case 1 through the valve control piper, and cold-accumulating box 2 comprises casing 2-3, the cold-accumulating box sparge pipe 2-4 in water inlet 2-1 gets into casing 2-3 that ice cube is housed; The bottom of casing 2-3 is provided with delivery port 2-2, and the top of casing 2-3 is provided with the upper cover plate that is easy to open; Refrigeration case 1 is provided with two delivery ports; A delivery port connects cold-accumulating box 2 through the valve control piper; The threeway of another delivery port in the outlet pipeline of valve control piper and cold-accumulating box 2 links to each other; Be equipped with water pump 4 and flow meter 5 on the turnover valve control piper that cold-accumulating box 2 links to each other with refrigeration case 1, be equipped with control valve 3 on two water outlet pipelines of refrigeration case 1 and the suction line.Refrigeration case 1 comprises the refrigeration casing; The refrigeration casing is provided with and is used to the folding upper lid plate observing, measure and clean, and the refrigeration casing is provided with air intake 1-6, air outlet 1-1, and air outlet 1-1 one side is provided with blower fan 1-2; Be provided with the spray chamber 1-5 that surrounds by water inlet pipe 1-7 in the refrigeration casing; Water inlet pipe 1-7 is provided with refrigeration case nozzle 1-4, and the refrigeration casing is provided with the first return pipe 1-8 and the second return pipe 1-11, and the bottom of water inlet pipe 1-7 is provided with bleed off pipe 1-9; The bottom of refrigeration casing is provided with blow-off pipe 1-10, and is as shown in Figure 2.
The operating principle and the course of work: refrigeration case 1, cold-accumulating box 2, water pump 4 are installed in through frame base on the mining rail flat car that can conveniently move, the refrigeration case 1 formation water circulation system that is connected with the water inlet return pipe of cold-accumulating box 2, a part of backwater of refrigeration case 1 bottom flows out from the first return pipe 1-8; Water inlet 2-1 through cold-accumulating box 2 gets into cold-accumulating box 2; Backwater is cooled to frozen water, and another part backwater flows out from the second return pipe 1-11, mixes with the frozen water of cold-accumulating box 2; Regulate the temperature of flow-control refrigeration case 1 water inlet of backwater and frozen water through control valve; Through water pump and flow meter, get into refrigeration case 1 through water inlet 1-7 again, frozen water forms the frozen water mist through nozzle 1-4; Become backwater after the interchange of heat once more, repeat above circulation.Distinguished and admirable air intake 1-6 from refrigeration case 1 in the mine laneway gets into; Contact refrigeration with frozen water mist (membranization) low-temperature receiver in the spray chamber 1-5 of refrigeration case 1; Realize the process of cooling, pass through watertight shutter 1-3 again, reduce distinguished and admirable humidity; Cold air flows out through air outlet 1-1, through blower fan the distinguished and admirable work plane heat extraction of directly sending into of low temperature is dehumidified again.
Embodiment two, basic identical with embodiment one, something in common slightly.Difference is: refrigeration case 1 comprises the refrigeration casing, and the refrigeration casing is provided with air intake 1-6, air outlet 1-1, and air outlet 1-1 one side is provided with blower fan 1-2; Be provided with the spray chamber 1-5 that surrounds by water inlet pipe 1-7 in the refrigeration casing; Be provided with surface cooler 1-12 in the spray chamber 1-5, water inlet pipe 1-7 is provided with refrigeration case nozzle 1-4, and the refrigeration casing is provided with the first return pipe 1-8 and the second return pipe 1-11; The bottom of water inlet pipe 1-7 is provided with bleed off pipe 1-9, and the bottom of refrigeration casing is provided with blow-off pipe 1-10.
The course of work and embodiment one are basic identical, and something in common slightly.Difference is: backwater is with after frozen water mixes; Get into refrigeration case 1 through water inlet 1-7, a part of frozen water gets into nozzle 1-4 and forms the frozen water mist, and a part of frozen water gets into surface cooler 1-12; After the interchange of heat; Water in the surface cooler 1-12 mixes with the water of the first return pipe 1-8, gets into cold-accumulating box 2 through the water inlet 2-1 of cold-accumulating box 2, repeats above water circulation.
Claims (5)
1. mining mobile ice-storage air-conditioning; It is characterized in that: it comprises refrigeration case (1) and the cold-accumulating box (2) that is located at respectively on the removable frame base; The outlet of cold-accumulating box (2) links to each other with refrigeration case (1) through the valve control piper; Refrigeration case (1) is provided with two delivery ports; A delivery port connects cold-accumulating box (2) through the valve control piper; The threeway of another delivery port in the outlet pipeline of valve control piper and cold-accumulating box (2) links to each other, and is equipped with water pump (4) and flow meter (5) on cold-accumulating box (2) and the turnover valve control piper that refrigeration case (1) links to each other, is equipped with control valve (3) on two water outlet pipelines of refrigeration case (1) and the suction line.
2. mining mobile ice-storage air-conditioning according to claim 1; It is characterized in that: described cold-accumulating box (2) comprises casing (2-3), the cold-accumulating box sparge pipe (2-4) in water inlet (2-1) gets into casing (2-3) that ice cube is housed; The bottom of casing (2-3) is provided with delivery port (2-2), and the top of casing (2-3) is provided with the upper cover plate that is easy to open.
3. mining mobile ice-storage air-conditioning according to claim 1; It is characterized in that: said refrigeration case (1) comprises the refrigeration casing; The refrigeration casing is provided with air intake (1-6), air outlet (1-1), and air outlet (1-1) side is provided with blower fan (1-2), is provided with the spray chamber (1-5) that is surrounded by water inlet pipe (1-7) in the refrigeration casing; Water inlet pipe (1-7) is provided with refrigeration case nozzle (1-4); The refrigeration casing is provided with first return pipe (1-8) and second return pipe (1-11), and the bottom of water inlet pipe (1-7) is provided with bleed off pipe (1-9), and the bottom of refrigeration casing is provided with blow-off pipe (1-10).
4. mining mobile ice-storage air-conditioning according to claim 1; It is characterized in that: said refrigeration case (1) comprises the refrigeration casing; The refrigeration casing is provided with air intake (1-6), air outlet (1-1); Air outlet (1-1) side is provided with blower fan (1-2), is provided with the spray chamber (1-5) that is surrounded by water inlet pipe (1-7) in the refrigeration casing, is provided with surface cooler (1-12) in the spray chamber (1-5); Water inlet pipe (1-7) is provided with refrigeration case nozzle (1-4); The refrigeration casing is provided with first return pipe (1-8) and second return pipe (1-11), and the bottom of water inlet pipe (1-7) is provided with bleed off pipe (1-9), and the bottom of refrigeration casing is provided with blow-off pipe (1-10).
5. according to claim 3 or 4 described mining mobile ice-storage air-conditionings, it is characterized in that: described refrigeration casing is provided with and is used to the folding upper lid plate observing, measure and clean.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010106024463A CN102011604B (en) | 2010-12-23 | 2010-12-23 | Movable mine ice-storage air conditioner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010106024463A CN102011604B (en) | 2010-12-23 | 2010-12-23 | Movable mine ice-storage air conditioner |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102011604A CN102011604A (en) | 2011-04-13 |
| CN102011604B true CN102011604B (en) | 2012-07-25 |
Family
ID=43841914
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010106024463A Expired - Fee Related CN102011604B (en) | 2010-12-23 | 2010-12-23 | Movable mine ice-storage air conditioner |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102011604B (en) |
Families Citing this family (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102678157A (en) * | 2011-11-16 | 2012-09-19 | 韩雪峰 | Refrigeration cooling and dehumidification air conditioner |
| CN103884062A (en) * | 2013-12-31 | 2014-06-25 | 天津大学 | Cooling and dehumidifying device for emergencies |
| CN106931508A (en) * | 2015-12-31 | 2017-07-07 | 青岛海尔智能技术研发有限公司 | Split air-cooled air conditioner equipment |
| CN109026122A (en) * | 2018-09-11 | 2018-12-18 | 龙口矿业集团有限公司 | Coal mine ice water circulation air-cooler and its cooling means |
| CN110371315B (en) * | 2019-08-20 | 2024-03-05 | 无锡雪鸥移动空调有限公司 | Cold-storage low-energy-consumption aircraft ground air conditioner |
| CN112682878A (en) * | 2020-12-18 | 2021-04-20 | 广东申菱环境系统股份有限公司 | Ice cold-storage air conditioner based on spray heat exchange |
| CN112682879A (en) * | 2020-12-18 | 2021-04-20 | 广东申菱环境系统股份有限公司 | Evaporation type ice cold storage air conditioner |
| CN112682877A (en) * | 2020-12-18 | 2021-04-20 | 广东申菱环境系统股份有限公司 | Ice storage mobile air conditioner |
| CN112682880A (en) * | 2020-12-18 | 2021-04-20 | 广东申菱环境系统股份有限公司 | Ice storage air conditioner |
| CN112682914B (en) * | 2020-12-18 | 2022-07-26 | 广东申菱环境系统股份有限公司 | Control method of ice storage mobile air conditioner |
| CN112682911B (en) * | 2020-12-18 | 2022-07-26 | 广东申菱环境系统股份有限公司 | Control method of ice storage air conditioner based on spray heat exchange |
| CN112682912B (en) * | 2020-12-18 | 2022-07-26 | 广东申菱环境系统股份有限公司 | Control method of evaporative ice storage air conditioner |
| CN112682913B (en) * | 2020-12-18 | 2022-07-26 | 广东申菱环境系统股份有限公司 | Control method of ice storage air conditioner |
| CN113464190A (en) * | 2021-07-02 | 2021-10-01 | 江苏徐工工程机械研究院有限公司 | Cooling device for high-ground-temperature geological tunnel |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1051776A (en) * | 1990-12-19 | 1991-05-29 | 孔祥清 | Mine salt solution cold-accumulating vehicle is in mine local cooling |
| EP0452251A1 (en) * | 1990-04-04 | 1991-10-16 | Sulzer International Ag | Driving- and supply-unit for spray- or surface-cooler |
| JP2005139733A (en) * | 2003-11-06 | 2005-06-02 | Kajima Corp | Tunnel inside cooling system |
| CN1737336A (en) * | 2005-08-26 | 2006-02-22 | 湖南科技大学 | Mining partial cold-supply device |
| DE102004059071A1 (en) * | 2004-12-07 | 2006-06-14 | Siemag Gmbh | The device has three-chamber tubing senders in respective bores formed with closed cooling circuits in series so low-pressure line of sender is connected to shaft line with developing high pressure of following sender |
| CN201241724Y (en) * | 2008-07-07 | 2009-05-20 | 姜玉贵 | Mine movable water cooled type refrigerating machine unit |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202039885U (en) * | 2010-12-23 | 2011-11-16 | 中国矿业大学 | Mine movable ice-storage cold air conditioner |
-
2010
- 2010-12-23 CN CN2010106024463A patent/CN102011604B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0452251A1 (en) * | 1990-04-04 | 1991-10-16 | Sulzer International Ag | Driving- and supply-unit for spray- or surface-cooler |
| CN1051776A (en) * | 1990-12-19 | 1991-05-29 | 孔祥清 | Mine salt solution cold-accumulating vehicle is in mine local cooling |
| JP2005139733A (en) * | 2003-11-06 | 2005-06-02 | Kajima Corp | Tunnel inside cooling system |
| DE102004059071A1 (en) * | 2004-12-07 | 2006-06-14 | Siemag Gmbh | The device has three-chamber tubing senders in respective bores formed with closed cooling circuits in series so low-pressure line of sender is connected to shaft line with developing high pressure of following sender |
| CN1737336A (en) * | 2005-08-26 | 2006-02-22 | 湖南科技大学 | Mining partial cold-supply device |
| CN201241724Y (en) * | 2008-07-07 | 2009-05-20 | 姜玉贵 | Mine movable water cooled type refrigerating machine unit |
Non-Patent Citations (1)
| Title |
|---|
| JP特开2005139733A 2005.06.02 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102011604A (en) | 2011-04-13 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102011604B (en) | Movable mine ice-storage air conditioner | |
| CN103216255B (en) | Compressed air cold conveying cooling system for mine and cooling method thereof | |
| CN201074522Y (en) | Low-temperature refrigeration cooling device for mine | |
| CN201100135Y (en) | Ice cooling temperature reduction system for mine | |
| CN102080564B (en) | Method for preventing and controlling heat hazard of mine | |
| CN204082199U (en) | A kind of winter natural cooling source of utilizing is directly the system of mine cooling | |
| CN204082198U (en) | A kind of winter natural cooling source of utilizing carries out the type pit cooling system changed | |
| CN104776731A (en) | System and method for freezing resistance of cooling tower in winter by utilizing indirect evaporative cooling | |
| CN102937312B (en) | Anti-freezing method for indirect evaporative water chilling unit capable of operating all year round and unit | |
| CN107314587B (en) | Artificial snow making system and method at temperature of above 0 DEG C | |
| CN103604244A (en) | Multi-resource low-temperature waste heat comprehensive utilization system | |
| CN102140927B (en) | Method and system for reducing temperature locally under coal mine shaft | |
| CN106761886A (en) | A kind of mine return air radiating working face Local Air-cooling System | |
| CN103292401B (en) | Multifunctional transverse flow type heat source tower device | |
| CN202690107U (en) | Movable-type ice-water spray cooling apparatus for tunneling working face | |
| CN203161278U (en) | Mine vacuum cooling system | |
| CN102767387A (en) | Excavation tunnel heat-insulation flow-dividing heat discharge cooling method | |
| CN104101038A (en) | Multi-mode operation evaporation refrigeration cold water supply device and use method thereof | |
| CN202039885U (en) | Mine movable ice-storage cold air conditioner | |
| CN102410598A (en) | Circulating ground source cold water cascade refrigerating system | |
| CN203395994U (en) | Refrigeration system used for engine room | |
| CN203744435U (en) | Air conditioning system applying underground stored energy at night of evaporative cooling water chilling unit | |
| CN202485482U (en) | Heat source tower with solution regeneration function | |
| CN108168173B (en) | Artificial snow making and heat supplying integrated system near snow road and above 0 ℃ and operation method thereof | |
| CN102620371B (en) | Evaporative condenser heat pump air-conditioning unit |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120725 Termination date: 20141223 |
|
| EXPY | Termination of patent right or utility model |