CN100513963C - Underground cooling device - Google Patents
Underground cooling device Download PDFInfo
- Publication number
- CN100513963C CN100513963C CNB2007100217827A CN200710021782A CN100513963C CN 100513963 C CN100513963 C CN 100513963C CN B2007100217827 A CNB2007100217827 A CN B2007100217827A CN 200710021782 A CN200710021782 A CN 200710021782A CN 100513963 C CN100513963 C CN 100513963C
- Authority
- CN
- China
- Prior art keywords
- water
- underground
- filler
- pipe
- underground tank
- 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
Images
Landscapes
- Other Air-Conditioning Systems (AREA)
Abstract
The underground cooling device of the present invention is mainly composed of underground pool, water input pipe, nozzle, filling, filling support rack, wind shield board, water output pipe, water complement pipe, ball cock, air input passage, air discharge passage and blower. The water input pipe lies on the top of the underground pool, the nozzle is connected with the water input pipe, the filling lies under the nozzle, the water output pipe lies under the underground pool, the water complement pipe lies on the top of the underground pool and connects with the ball cock, one end of the air input passage and one end of the air discharge passage are respectively connected with the underground pool, the blower lies on the air input passage or the air discharge passage. The water in the underground water pool is deposited with phase change material. The invention solves the problem that lack of ground, floating water, noise and etc. existing in setting ground cooling tower in underground building. Moreover, the working of the cooling device will save much more cost because of the cold storage function of the water and phase change material in the underground pool.
Description
Technical field:
The present invention relates to a kind of cooling device, particularly relate to a kind of underground cooling device.
Background technology:
In order to solve problems such as urban land anxiety, ecological deterioration, fully develop the important directions that the underground space has become current urban development.In recent years, China city is newly-built a large amount of hypogees comprise subway, market place builet below the ground, underground public place of entertainment etc.The hypogee is because relative closure uses needs so its inner air must be regulated to satisfy.When the air in the underground building being lowered the temperature processing, cooling tower generally is set on ground underground waste heat is dispersed into ground.
Have following problem for the hypogee is provided with the ground cooling tower: one when ground is the commercial location of prosperity, is difficult to find the position of placing cooling tower; Its two, cooling tower operation the time have fine liquid particles to around fly away " water wafts " phenomenon, may contain germs such as Legionella in this water droplet, cause environmental pollution, the crowd is dense in the city that the location is unallowable for this; Its three, in cooling tower when operation,, because reasons such as blower fan running, trickle can produce bigger noise, this has caused the obvious noise pollution to urban environment.Though the present invention is primarily aimed at the hypogee, also there is similar problem in the present in fact and matching used cooling tower of surface structures when being provided with,
Summary of the invention:
The objective of the invention is the problem that the ground cooling tower exists to be set, for the hypogee provides a kind of reasonable in design, operating cost is low and do not take the underground cooling device of floor area in order to solve the hypogee.
Underground cooling device of the present invention is mainly by underground tank, water inlet pipe, nozzle, filler, filler support, deep bead, outlet pipe, filling pipe, ball-cock assembly, wind inlet channel, wind output channel and blower fan are formed, the correlation of each part is: water inlet pipe is positioned at the top of underground tank, nozzle links to each other with water inlet pipe, filler is fixed by filler support and is positioned at the nozzle bottom, deep bead is positioned at the top of the windward side and the leeward side of filler, outlet pipe is positioned at the underground tank bottom, filling pipe is positioned at underground tank top and is connected with ball-cock assembly, one end of wind inlet channel is connected with underground tank at the windward side of filler, one end of wind output channel is connected with underground tank at the leeward side of filler, and blower fan is positioned on wind inlet channel or the wind output channel.Be placed with phase-change material in the described underground water pool inner water.When described wind output channel was airduct, airduct was selected thermal insulation wind pipe for use.
Underground tank is one and is located in the hypogee and pond that volume is bigger.The material of filler is paper or plastics etc., is cellular, can use general ground cooling tower or the used filler of wet film evaporative humidifier.Ball-cock assembly keeps the water surface of underground tank to be stabilized in position a little more than the filler lower edge, and the purpose of doing like this is to avoid forming the slit between the filler lower edge and the water surface and air was leaked.The windward side of filler refers to that air flows into a side of filler, and leeward side refers to that air flows out a side of filler.Deep bead is positioned at the top of filler windward side and leeward side, its objective is that blocks air leaked between the end face of filler upper limb and underground tank.Remove outside the end that is connected with underground tank, the other end of wind inlet channel and wind output channel all leads to ground, can blast cap be set respectively at floor outlet.Outlet pipe generally connects water pump, then connects the thermals source such as condenser of refrigeration machine in the hypogee, and the back connects water inlet pipe again, thereby forms a circulation waterway.
The phase transition temperature of phase-change material is encapsulated in a plurality of airtight bags about 30 ℃, and the water in the discord underground tank mixes.Phase-change material is in a liquid state when temperature is higher than phase transition temperature, is solid-state when being lower than phase transition temperature, by liquid state in solid-state transforming process in the water of underground tank release heat, in liquid transforming process, from the water of underground tank, absorbing heat by solid-state.
The preparation method of thermal insulation wind pipe can be to install heat-insulation layer additional on the airduct surface, installs heat-insulation layer additional as the surface at the iron sheet airduct; Also can be in the middle of the airduct material layer, to install heat-insulation layer additional, install heat-insulation layer in the middle of the airduct tube wall as glass fibre reinforced plastic blast pipe additional.
The method of operation of hypogee can be divided into two kinds of continuous operation and intermittent duties.Operation refers to that the hypogee all is in user mode round the clock continuously, and the thermals source such as condenser of refrigeration machine continue to have caloric requirement to distribute in the hypogee.Intermittent duty refers to that the hypogee moves night daytime and stop using, and the thermals source such as condenser of refrigeration machine have caloric requirement to distribute daytime the hypogee in, and night, these thermals source were inactive, so there is not heat to distribute.
When underground building was moved continuously, ruuning situation of the present invention was: open blower fan, air enters underground tank by blast cap, wind inlet channel from ground, then is horizontally through filler, is discharged to ground by wind output channel, blast cap.Water in the underground tank is driven the thermals source such as condenser that flow to refrigeration machine in the hypogee from outlet pipe by water pump, being heated the back in thermals source such as condenser flows back to from water inlet pipe, by the nozzles spray that links to each other with water inlet pipe to filler, through behind the filler, fall in the pond, bottom, water in the underground tank drives the thermals source such as condenser that flow to refrigeration machine in the hypogee from outlet pipe by water pump again, and so forth circulation.On filler, the higher water and air of temperature of nozzle ejection carries out the wet exchange of heat, thereby water evaporates reduces water temperature, and the moisture content of evaporation is brought to ground with air draft, thereby reaches the purpose that underground waste heat is dispersed into ground.Along with the evaporation of moisture content, the water level in the pond will descend, and the general who has surrendered opens ball-cock assembly under the water level, and by filling pipe moisturizing in underground tank, the water surface of maintenance underground tank is stabilized in the position a little more than the filler lower edge.Filling pipe can be connected with the domestic water supplying system of hypogee.The design parameter of ground cooling tower is generally 37 ℃ of inflow temperatures, through 32 ℃ of cooling tower cooling back leaving water temperatures, the desirable and essentially identical water-in and water-out design parameter of ground cooling tower of the present invention.Like this, the water temperature when the present invention moves continuously in the underground tank just all is higher than the phase transition temperature of phase-change material, so when moving continuously, phase-change material does not undergo phase transition substantially.
When underground building intermittent duty, ruuning situation of the present invention is as follows:
At night, owing to stop using in the hypogee, so thermals source such as condenser will be stopped using, promptly water is by temperature-resistant before and after the thermals source such as condenser, and open blower fan and water pump this moment, and it is equally mobile to allow the sky G﹠W move continuously as described above.Because thermals source such as condenser are distribute heat no longer, so the water temperature in the underground tank will reduce, when dropping to the phase transition temperature of phase-change material, phase-change material will be in water release heat, become solid-state gradually by liquid state, close blower fan, water pump when water temperature no longer reduces in the underground tank, stop the operation of this underground cooling device.The next morning, the hypogee came into operation again, in a period of time after thermals source such as condenser are enabled, do not open blower fan, only opening water pump makes the water in the underground tank circulate by thermals source such as condensers, since the water in the underground tank evening before that day temperature fallen lowlyer, so in a period of time, only just can satisfy the cooling requirement of thermals source such as condenser by the rising of water temperature in the underground tank.When water temperature is elevated to the phase transition temperature of phase-change material, phase-change material will be changed to liquid state by solid-state, absorb heat from water; In this process, water temperature does not raise or heats up slowly.When phase-change material by solid-state change liquid state into fully after, water temperature continue to raise.Behind the design inflow temperature of water temperature above thermals source such as condensers, open blower fan, the overhead G﹠W of filler carries out the wet exchange of heat, and heat takes ground to by air draft, keeps this running status to finish up to daytime, and the hypogee is inactive.Then again by aforementioned method of operation operation at night, so move in circles at daytime, night night.Do like this, actual is exactly to utilize water and phase change material cool storage in the underground tank at night, for using daytime.So operation can be saved operating cost, because the time-of-use tariffs difference, night, electricity price was cheap, and night, outside air temperature was lower than the daytime, and can lower the water temperature in the underground tank in the shorter time night.
When wind output channel was airduct, airduct was that the purpose of thermal insulation wind pipe is to prevent that all very high air draft of humiture from condensing in a large number because of tube wall temperature is lower when airduct flows, and accumulates excessive water in airduct.Also should take measures on the wind output channel water that condenses along the air channel is discharged smoothly.
The invention has the advantages that: one, underground cooling device is located at underground, can reach the radiating effect same with the ground cooling tower, but need not look for placement location on ground; Its two because the wind output channel of underground cooling device is longer, the fine liquid particles major part that contains in the air draft drops in the wind output channel, the water droplet that finally is discharged in the ground air will significantly reduce, and promptly eliminate " water wafts " phenomenon substantially; Its three, the blower fan of underground cooling device is located at underground, trickle is in underground tank, it will be very little that these sound pass to ground influence to external world, obviously reduce the noise pollution to ground environment.Generally speaking, the present invention can solve present hypogee preferably the problem that the ground cooling tower exists is set, and has reasonable in design, operating cost is low and does not take advantage such as floor area.The present invention is best suited for the hypogee, but also applicable to surface structures.
Description of drawings:
Fig. 1 is a schematic diagram of the present invention.
Fig. 2 is the A-A profile of Fig. 1.
The specific embodiment:
As shown in Figure 1 and Figure 2, a kind of underground cooling device comprises underground tank 19, water inlet pipe 9, nozzle 7, filler 8, filler support 17, deep bead 6, outlet pipe 13, filling pipe 15, ball-cock assembly 14, wind inlet channel 10, wind output channel 3 and blower fan 5.Underground tank 19 is one and is located in the hypogee 1 and the bigger pond of volume, does not generally need for this underground cooling device is provided with specially, can merge with underground fire-fighting reservoir, the standby reservoir of air-conditioning etc. and use, and will save initial cost greatly like this.The material of filler 8 is a paper, is cellular, and is identical with the general used filler of wet film evaporative humidifier.
The correlation of underground cooling device part is: water inlet pipe 9 is positioned at the top of underground tank 19, nozzle 7 links to each other with water inlet pipe 9, filler 8 is fixing and be positioned at nozzle 7 bottoms by filler support 17, the windward side of filler 8 is a side of symbol a indication among Fig. 1, leeward side is a side of symbol b indication among Fig. 1, deep bead 6 is positioned at the top of the windward side and the leeward side of filler 8, outlet pipe 13 is positioned at underground tank 19 bottoms, filling pipe 15 is positioned at underground tank 19 tops and is connected with ball-cock assembly 14, one end of wind inlet channel 10 is connected with underground tank 19 at the windward side of filler 8, one end of wind output channel 3 is connected with underground tank 19 at the leeward side of filler 8, blower fan 5 is positioned on the wind output channel, be placed with phase-change material 20 in the water 18 in the underground tank 19, wind output channel 3 a section in hypogee 1 is an airduct, be thermal insulation wind pipe 16, the preparation method of this thermal insulation wind pipe is to install heat-insulation layer in the middle of the airduct tube wall of glass fibre reinforced plastic blast pipe additional.Also established drainpipe 2 to get rid of the water that condenses in the air channel in the minimum point of thermal insulation wind pipe 16.
Ball-cock assembly 14 keeps the water surface of underground tanks 19 to be stabilized in position a little more than filler 8 lower edges, and promptly the water surface is stabilized in the height place of figure mid point c indication, and the purpose of doing like this is to avoid forming the slit between the filler lower edge and the water surface and air was leaked.Deep bead 6 is positioned at the top of the windward side and the leeward side of filler 8, and blocks air was leaked between the end face of filler 8 upper limbs and underground tank 19.Remove with a end that underground tank 19 is connected outside, the other end of wind inlet channel 10 and wind output channel 3 all leads to ground, and on ground blast cap 4 is set respectively.The condenser 11 of outlet pipe 13, water pump 12, refrigeration machine, water inlet pipe 9 are connected to form a circulation waterway.
The phase transition temperature of phase-change material 20 is made up of one or more materials about 30 ℃, has just proposed the phase-change material of a kind of phase transition temperature about 30 ℃ as patent CN03137241.4.Phase-change material is in a liquid state when temperature is higher than phase transition temperature, is solid-state when being lower than phase transition temperature, by liquid state in solid-state transforming process in the water of underground tank release heat, in liquid transforming process, from the water of underground tank, absorbing heat by solid-state.Phase-change material 20 is encapsulated in a plurality of airtight bags, and the water in the discord underground tank mixes.
As previously mentioned, the method for operation of hypogee can be divided into two kinds of continuous operation and intermittent duties.
When underground building was moved continuously, ruuning situation of the present invention was: open blower fan 5, air enters underground tank 19 by blast cap 4, wind inlet channel 10 from ground, then be horizontally through filler 8, is discharged to ground by wind output channel 3, blast cap 4.Water 18 in the underground tank 19 drives the condenser 11 that flows to refrigeration machine in the hypogee from outlet pipe 13 by water pump 12, being heated the back in condenser 11 flows back to from water inlet pipe 9, be sprayed onto on the filler 8 by the nozzle 7 that links to each other with water inlet pipe 9, through behind the filler 8, fall in the pond, bottom, water 18 in the underground tank 19 drives the condenser 11 that flows to refrigeration machine in the hypogee from outlet pipe 13 by water pump 12 again, and so forth circulation.On filler 8, the higher water and air of temperature of nozzle 7 ejections carries out the wet exchange of heat, thereby water evaporates reduces water temperature, and the moisture content of evaporation is brought to ground with air draft, thereby reaches the purpose that underground waste heat is dispersed into ground.Along with the evaporation of moisture content, the water level in the pond will descend, and the general who has surrendered opens ball-cock assembly 14 under the water level, and by filling pipe 15 moisturizing in underground tank 19, the water surface of maintenance underground tank 19 is stabilized in the position a little more than filler 8 lower edges.Filling pipe 15 can be connected with the domestic water supplying system of hypogee.The design parameter of ground cooling tower is generally 37 ℃ of inflow temperatures, and through 32 ℃ of cooling tower cooling back leaving water temperatures, the present invention gets and the essentially identical water-in and water-out design parameter of ground cooling tower.Like this, the water temperature when the present invention moves continuously in the underground tank just all is higher than the phase transition temperature of phase-change material 20, so when moving continuously, phase-change material 20 does not undergo phase transition substantially.
When underground building intermittent duty, ruuning situation of the present invention is as follows:
At night, owing to stopping using in the hypogee, so condenser 11 will be stopped using, promptly water is by temperature-resistant before and after this condenser, and open blower fan 5 and water pump 12 this moment, and it is equally mobile to allow the sky G﹠W move continuously as described above.Because condenser 11 is distribute heat no longer, so the water temperature in the underground tank 19 will reduce, when dropping to the phase transition temperature of phase-change material 20, phase-change material 20 will be in water release heat, become solid-state gradually by liquid state, close blower fan 5, water pump 12 when water temperature no longer reduces in the underground tank 19, stop the operation of this underground cooling device.The next morning, the hypogee came into operation again, in a period of time after condenser 11 is enabled, do not open blower fan 5, only opening water pump 12 makes the water in the underground tank 19 circulate by condenser 11, since the water in the underground tank 19 evening before that day temperature fallen lowlyer, so in a period of time, only just can satisfy the cooling requirement of condenser 11 by the rising of water temperature in the underground tank 19.When water temperature is elevated to the phase transition temperature of phase-change material 20, phase-change material 20 will be changed to liquid state by solid-state, absorb heat from water; In this process, water temperature does not raise or heats up slowly.When phase-change material 20 by solid-state change liquid state into fully after, water temperature continue to raise.After water temperature surpasses the design inflow temperature of condenser 11, open blower fan 5, filler 8 overhead G﹠Ws carry out the wet exchange of heat, and heat takes ground to by air draft, keeps this running status to finish up to daytime, and stop using in the hypogee.Then again by aforementioned method of operation operation at night, so move in circles at daytime, night night.Do like this, actual is exactly to utilize water and phase change material cool storage in the underground tank at night, for using daytime.So operation can be saved operating cost, because the time-of-use tariffs difference, night, electricity price was cheap, and night, outside air temperature was lower than the daytime, and can lower the water temperature in the underground tank in the shorter time night.
Generally speaking, the present invention has solved present hypogee preferably the problems that the ground cooling tower exists has been set, and can also save operating cost.
Claims (3)
1, a kind of underground cooling device, it is characterized in that mainly by underground tank, water inlet pipe, nozzle, filler, filler support, deep bead, outlet pipe, filling pipe, ball-cock assembly, wind inlet channel, wind output channel and blower fan are formed, the correlation of each part is: water inlet pipe is positioned at the top of underground tank, nozzle links to each other with water inlet pipe, filler is fixed by filler support and is positioned at the nozzle bottom, deep bead is positioned at the top of the windward side and the leeward side of filler, outlet pipe is positioned at the underground tank bottom, filling pipe is positioned at underground tank top and is connected with ball-cock assembly, one end of wind inlet channel is connected with underground tank at the windward side of filler, one end of wind output channel is connected with underground tank at the leeward side of filler, and blower fan is positioned on wind inlet channel or the wind output channel.
2, underground cooling device according to claim 1 is characterized in that being placed with phase-change material in the described underground water pool inner water.
3, underground cooling device according to claim 1 and 2, when it is characterized in that described wind output channel is airduct, airduct is selected thermal insulation wind pipe for use.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CNB2007100217827A CN100513963C (en) | 2007-04-28 | 2007-04-28 | Underground cooling device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CNB2007100217827A CN100513963C (en) | 2007-04-28 | 2007-04-28 | Underground cooling device |
Publications (2)
Publication Number | Publication Date |
---|---|
CN101038132A CN101038132A (en) | 2007-09-19 |
CN100513963C true CN100513963C (en) | 2009-07-15 |
Family
ID=38889200
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CNB2007100217827A Expired - Fee Related CN100513963C (en) | 2007-04-28 | 2007-04-28 | Underground cooling device |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN100513963C (en) |
Families Citing this family (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102921239B (en) * | 2012-11-22 | 2015-10-14 | 苏州钻石金属粉有限公司 | Noise dust setting chamber |
CN103612833A (en) * | 2013-12-06 | 2014-03-05 | 上海应用技术学院 | Device containing phase change materials and used for heat insulation of solution in open system |
CN104067857A (en) * | 2014-06-27 | 2014-10-01 | 贵州黔龙天麻开发有限公司 | Automatic water charging system for atmospheric pressure sterilization oven for edible mushroom |
CN104329749A (en) * | 2014-09-17 | 2015-02-04 | 中山市蓝水能源科技发展有限公司 | Chilled water storage refrigeration device |
CN105651075A (en) * | 2016-03-28 | 2016-06-08 | 江苏海鸥冷却塔股份有限公司 | Cooling tower system |
CN109640603A (en) * | 2019-01-31 | 2019-04-16 | 上海电力学院 | Buried high-power wireless charger transmitting terminal cooling system based on phase-change material |
CN111326822B (en) * | 2020-02-28 | 2021-08-13 | 西安交通大学 | Phase-change cooling system and working method thereof |
CN112413960A (en) * | 2020-11-17 | 2021-02-26 | 山东建筑大学 | Water-cooling grain storage system based on cross-season cold accumulation and working method |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3788385A (en) * | 1970-11-23 | 1974-01-29 | Chicago Bridge & Iron Co | Dry type, liquid-solid cooling system |
GB1393146A (en) * | 1971-10-04 | 1975-05-07 | Transelektro Magyar Villamossa | Air-cooled underground cooling plant |
US3970140A (en) * | 1971-09-04 | 1976-07-20 | Transelektro Magyar Villamossagi Kulkereskedelmi Vallalat | Air operated underground cooler means with natural lift |
CN2171804Y (en) * | 1993-09-25 | 1994-07-13 | 北京市西城区新开通用试验厂 | Blowing damp-eliminating device for underground equipment |
CN2769739Y (en) * | 2005-03-14 | 2006-04-05 | 北京金万众空调制冷设备有限责任公司 | Fixed surface-cooler ventilating and air conditioning system for subway station |
CN201034417Y (en) * | 2007-04-28 | 2008-03-12 | 杨会龙 | Underground cooling tower |
-
2007
- 2007-04-28 CN CNB2007100217827A patent/CN100513963C/en not_active Expired - Fee Related
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3788385A (en) * | 1970-11-23 | 1974-01-29 | Chicago Bridge & Iron Co | Dry type, liquid-solid cooling system |
US3970140A (en) * | 1971-09-04 | 1976-07-20 | Transelektro Magyar Villamossagi Kulkereskedelmi Vallalat | Air operated underground cooler means with natural lift |
GB1393146A (en) * | 1971-10-04 | 1975-05-07 | Transelektro Magyar Villamossa | Air-cooled underground cooling plant |
CN2171804Y (en) * | 1993-09-25 | 1994-07-13 | 北京市西城区新开通用试验厂 | Blowing damp-eliminating device for underground equipment |
CN2769739Y (en) * | 2005-03-14 | 2006-04-05 | 北京金万众空调制冷设备有限责任公司 | Fixed surface-cooler ventilating and air conditioning system for subway station |
CN201034417Y (en) * | 2007-04-28 | 2008-03-12 | 杨会龙 | Underground cooling tower |
Also Published As
Publication number | Publication date |
---|---|
CN101038132A (en) | 2007-09-19 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CN100513963C (en) | Underground cooling device | |
CN103542467B (en) | Air conditioning condensate water utilizing device | |
CN104776731B (en) | A kind of utilization indirect evaporating-cooling realizes the system and method for cooling tower preventing freeze in winter | |
CN103123193B (en) | Defrosting device for closed type heat source tower | |
CN201034417Y (en) | Underground cooling tower | |
CN106052418B (en) | Air cooling heat radiator is opened and closed changeable air cooled water composite cooling tower | |
CN203672184U (en) | Heat pump heat-supply mist-removal water-saving type cooling tower | |
CN201497390U (en) | Solar secondary biogenous cold-heat source tower | |
CN103292401B (en) | Multifunctional transverse flow type heat source tower device | |
CN103712477A (en) | Heat-supplying and demisting water-saving type cooling tower for heat pump | |
CN104197588A (en) | Surface air cooler with wet films of composite structures | |
CN103411283B (en) | Water air-conditioning system coupling cooling spray device water circulation with air current cooler | |
CN103898852A (en) | Solar dust removal and heat-extraction system | |
CN207132498U (en) | Passive type evaporates cooling channel air-conditioning system | |
CN101054843A (en) | Solar energy water-seeping wall evaporation and radiation electricity-generating room | |
CN102619546A (en) | Main fan diffusing tower exhaust outlet deflector induced air and heat energy utilization device | |
CN203364297U (en) | Transverse flow type heat source tower device | |
CN106051958A (en) | Evaporative condensation direct-expansion evaporative air conditioning system for metro station | |
CN108396814B (en) | Device for realizing atrium cooling of daylighting glass roof by roof rainwater | |
WO2018000774A1 (en) | Opening and closing switchable air-cooled cool water-type machine cooling tower for air-cooled radiator and operating mode of same | |
CN103528155A (en) | Cooling system | |
CN106524779B (en) | water energy fan cooling tower | |
CN105157447A (en) | Closed heat insulation air cooler | |
CN110360852A (en) | A kind of phase transformation energy tower and its heat-exchange method | |
CN102168923A (en) | Artificial spraying-cooling tree landscape type cooling water combining device |
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 | ||
C17 | Cessation of patent right | ||
CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090715 Termination date: 20130428 |