CN203479057U - Multifunctional reverse-flow type heat source tower device - Google Patents
Multifunctional reverse-flow type heat source tower device Download PDFInfo
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- CN203479057U CN203479057U CN201320400540.XU CN201320400540U CN203479057U CN 203479057 U CN203479057 U CN 203479057U CN 201320400540 U CN201320400540 U CN 201320400540U CN 203479057 U CN203479057 U CN 203479057U
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Abstract
The utility model discloses a multifunctional reverse-flow type heat source tower device. The multifunctional reverse-flow type heat source tower device comprises a heat source tower body, as well as an air flowing loop and a solution flowing loop which are arranged in the heat source tower body, wherein the air flowing loop comprises an air outlet formed in the top of the heat source tower body, an air inlet formed in the periphery of the bottom of the heat source tower body, a filler arranged in the heat source tower body, as well as a solution stopping device, a variable-speed fan and a self-opening rainproof device which are sequentially arranged below the air outlet from bottom to top; the solution flowing loop comprises a solution distribution system located in the heat source tower body, a filler, and a solution collection groove formed in the bottom of the heat source tower body, the solution collection groove is formed below the filler, and a heat source tower solution inlet and a heat source tower solution outlet are formed in the bottom of the solution collection groove. The multifunctional reverse-flow type heat source tower device disclosed by the utility model is capable of preventing rainwater from entering a reverse-flow type heat source tower to dilute a solution, and thus the problem of non-uniform solution distribution in winter and summer is solved, and the mass loss of the solution, caused by the bleaching of the solution, can be reduced and the efficient and stable running of the heat source tower is achieved.
Description
Technical field
The utility model belongs to refrigerated air-conditioning system design and fabrication technology field, relates to a kind of adverse current type heat source tower device.
Background technology
Heat source tower heat pump system is as a kind of novel Building Cooling source side case, can solve by a set of unit the demand of building summer cooling, Winter heat supply simultaneously, compare and utilize water-cooled handpiece Water Chilling Units to add steam generator system, its investment of equipment is less, utilization rate of equipment and installations is higher.During heat source tower heat pump system Winter heat supply, utilize solution to carry out caloic exchange with air in heat source tower, from air heat-obtaining as the low level heat energy of heat pump, the frosting problem of finned-tube evaporator while fundamentally having avoided air source heat pump winter operation; During summer cooling, heat source tower heat pump system is water-cooled handpiece Water Chilling Units form, and its operational efficiency is higher than the operational efficiency that is equal to air source heat pump system under operating mode.Visible, heat source tower heat pump system is compared air source heat pump system, and the application under two season of summer in winter operating mode all has superiority.Compare earth-source hot-pump system, the initial cost of heat source tower heat pump system is less, and is not subject to the restriction of geographical environment and geological conditions.Heat source tower is because taking into account cooling and warming operation in summer in winter, compares conventional cooling tower and has it self feature, and conventional adverse current type cooling tower is compared cross-flow type cooling tower and downstream-type cooling tower, has higher heat and mass transfer performance.Adverse current type cooling tower often adopts the mode of liquid distributor rotation to carry out cloth liquid, and the uniformity of liquid distributor rotation cloth liquid has requirement to the fluid flow size of cooling tower, the thrust of liquid distributor rotation comes from the reaction force that institute's cloth fluid flows out liquid distributor, therefore, conventional cooling tower flow will make liquid distributor cloth liquid inhomogeneous while changing on a large scale, and even liquid distributor can not normally rotate cloth liquid.Adverse current type heat source tower is during in the winter time with summer operation, and the fluid flow entering in heat source tower is different, and summer, heat source tower flow was about 3～4 times of winter.Take conventional single liquid distributor rotation cloth liquid to be difficult to adapt to the operating condition of variable-flow on a large scale, when large flow can meet preferably even cloth liquid, the in the situation that of low discharge, will there will be liquid distributor to be difficult to promote the problem of rotation.During heat source tower heat pump winter heating operation simultaneously, run into rainwater weather, rainwater can enter heat source tower from air outlet, makes solution thinning, reduces freezing point of solution, affects performance and the safe and reliable operation of heat pump.
Therefore, how to solve adverse current type heat source tower under summer in winter large changes in flow rate operating mode Ta Neibu liquid evenly, realize winter and summer heat source tower and all there is higher thermal property, prevent that rainwater from entering winter simultaneously, the problem such as cause that solution is diluted, designing a kind of new and effective adverse current type heat source tower becomes those skilled in the art's technical barrier in the urgent need to address.
Utility model content
technical problem:the utility model provides a kind of rainwater that solves to enter heat source tower dilute solution, and the unequal problem of cloth liquid that summer in winter, heat source tower inner fluid flow difference caused can reduce the multi-functional adverse current type heat source tower device of the solution quality loss that solution bleaching liquor causes simultaneously.
technical scheme:multi-functional adverse current type heat source tower device of the present utility model, comprise heat source tower tower body, be arranged on Air Flow loop and flow of solution loop in heat source tower tower body, Air Flow loop comprise be arranged on heat source tower tower body top air outlet, be arranged on heat source tower tower body bottom surrounding air inlet, be arranged on the filler of heat source tower tower body inside, be successively set on from bottom to up liquid-blocking device, speed-changing draught fan and the self-opening rain insensitive device of air outlet below.Flow of solution loop comprises the collecting tank that is positioned at liquid distribution system, the filler of heat source tower tower body inside and is positioned at heat source tower tower body bottom, and collecting tank is positioned at the below of filler, and sump bottom is provided with heat source tower solution inlet port and taphole.
Self-opening rain insensitive device comprises top fixed head, the air valve blades bracing or strutting arrangement and a plurality of level successively that lay respectively at fixed head both sides, top stack the rectangular wind valve blade being arranged on air valve blades bracing or strutting arrangement, air valve blades bracing or strutting arrangement lower end is arranged on heat source tower air outlet, upper end is connected with top fixed head, on rectangular wind valve blade, be provided with blade rotary axle, the two ends of blade rotary axle are connected with air valve blades bracing or strutting arrangement respectively, when rectangular wind valve blade is closed, just in time be covered to the blade rotary axle of front a slice rectangular wind valve blade, top fixed head and rectangular wind valve blade cover heat source tower air outlet, and there is certain angle of inclination.
Liquid distribution system comprises the first liquid distributor and the second liquid distributor being arranged in parallel, and the first liquid distributor is connected with outer tube, and the second liquid distributor is connected with inner tube, is provided with the first magnetic valve on outer tube, is provided with the second magnetic valve in inner tube, and inner tube is embedded in outer tube.
In the utility model, air inlet place is provided with environment temperature sensor and ambient humidity sensor, and heat source tower taphole place is provided with temperature sensor.
In the utility model, speed-changing draught fan is three fast blower fan or frequency conversion fans.
In the utility model, self-opening rain insensitive device is the unpowered air-valve with speed-changing draught fan synchronous opening/closing.
The specific works method of the utility model device is: when heat source tower summer operation, heat source tower moves large flow rate mode, the fluid that now enters heat source tower is water, in Air Flow loop, air is from heat source tower air inlet enters heat source tower tower body, enter in filler, carry out heat and mass with the water in filler, air out enters afterwards liquid-blocking device from filler, the droplet carrying in air is removed, from liquid-blocking device out, air is sucked by speed-changing draught fan, (now self-opening air-valve is blown open automatically after pressurization, from self-opening rain insensitive device, to flow out heat source tower tower body, concrete principle sees below).In flow of solution loop, when water enters heat source tower tower body from heat source tower solution inlet port, the first magnetic valve on outer tube and the second magnetic valve in inner tube are opened simultaneously, water flows into outer tube and inner tube simultaneously, enter respectively the first liquid distributor and the second liquid distributor, water will flow out from the first liquid distributor and the second liquid distributor, under the anti-motive force of current, the first liquid distributor and the second liquid distributor all will rotate, water is evenly dispensed on filler, the water and the air that enter filler carry out heat exchange, the evaporation of part moisture, all the other coolant-temperature gages fall into collecting tank after reducing, finally from heat source tower taphole, flow out.
When heat source tower winter operation, heat source tower operation low discharge pattern, the fluid that now enters heat source tower is solution, in Air Flow loop, air is from heat source tower air inlet enters heat source tower tower body, enter in filler, carry out heat and mass with the solution in filler, air themperature reduces, air out enters afterwards liquid-blocking device from filler, the droplet that carries in air is removed, from liquid-blocking device out, air is sucked, from self-opening rain insensitive device, flows out heat source tower tower body after pressurization by speed-changing draught fan.In flow of solution loop, when solution enters heat source tower tower body from heat source tower solution inlet port, the second magnetic valve in inner tube is opened, the first closed electromagnetic valve on outer tube, solution will only pass through from inner tube, enter the second liquid distributor, solution flows out from the second liquid distributor, under the anti-motive force of current, the second liquid distributor will rotate, and while realizing low discharge, solution evenly be dispensed on filler, and the solution and the air that flow into filler carry out heat exchange, solution temperature falls into collecting tank after raising, and finally from heat source tower taphole, flows out.
Run into rainy weather, when heat source tower is not worked, speed-changing draught fan does not move, self-opening rain insensitive device will cut out, because rectangular wind valve blade and top fixed head cover heat source tower air outlet, and have certain angle of inclination, rainwater drops on can be along the downward landing of blade on rectangular wind valve blade, finally leave whole air-valve, thereby prevent that rainwater from entering heat source tower tower body from heat source tower air outlet.When heat source tower is worked, speed-changing draught fan is opened, wind-force acts on rectangular wind valve blade, according to principle of moments, rectangular wind valve blade will be opened on axially automatically around blade rotary, form air-out passage, when speed-changing draught fan quits work, rectangular wind valve blade again can automatic fall-back under the effect of self gravitation, recovers closed condition.Thereby realize and under heat source tower off working state, prevent that rainwater from entering heat source tower dilute solution, reduce the regeneration demand of solution.
At heat source tower air inlet, environment temperature sensor measures ambient temperature, ambient humidity sensor measurement ambient humidity are housed, at heat source tower taphole, temperature sensor measurement heat source tower taphole temperature are housed.Speed-changing draught fan is three fast blower fans, there are high, medium and low three kinds of different rotating speeds, can regulate according to the dry-bulb temperature of environment, wet-bulb temperature and heat source tower outlet solution temperature, when the outlet solution temperature of heat source tower and air dry-bulb temperature, wet-bulb temperature difference are less than setting value, speed-changing draught fan will reduce rotating speed, wind speed is turned down by height, otherwise contrary.
Liquid distribution system middle external tube is connected with the first liquid distributor, and inner tube is connected with the second liquid distributor, and inner tube is parallel with outer tube, and inner tube is embedded in outer tube, thus guarantee outer tube and inner tube separate, the rotation cloth liquid of the first liquid distributor and the second liquid distributor does not interfere with each other.Fluid flow when the heat source tower summer, heat was with winter operation is different, by the control of the first magnetic valve and the second magnetic valve, while realizing summer, the first liquid distributor and the second liquid distributor are all worked, realize the even cloth liquid of large flow, and only has the second liquid distributor work during winter, guarantee the even cloth liquid of low discharge, thereby realize heat source tower, can realize even cloth liquid, normal operation with summer operation when the flow of big difference in the winter time.
beneficial effect:the utility model compared with prior art, has the following advantages:
The multi-functional adverse current type heat source tower device the utility model proposes, can prevent that rainwater from entering adverse current type heat source tower dilute solution, solve and to enter the uneven problem of cloth liquid that the fluid flow difference of adverse current type heat source tower causes in two seasons of summer in winter, can reduce the solution quality loss that solution bleaching liquor causes simultaneously, realize that heat source tower is efficient, stable operation.
Accompanying drawing explanation
Fig. 1 is the structural representation of the utility model device.
Fig. 2 is flow regulator structural representation.
Fig. 3 a is the A-A profile of flow regulator.
Fig. 3 b is the B-B profile of flow regulator.
Fig. 4 is self-opening rain insensitive device closed condition front view.
Fig. 5 is self-opening rain insensitive device closed condition top view.
Fig. 6 is self-opening rain insensitive device open mode front view.
Fig. 7 is self-opening rain insensitive device open mode top view.
In figure, have: top board fixed head 1; Rectangular wind valve blade 2; Blade rotary axle 21; Air valve blades bracing or strutting arrangement 22; Speed-changing draught fan 3; Liquid-blocking device 4; The first liquid distributor 5; The second liquid distributor 6; Filler 7; Heat source tower tower body 8; Collecting tank 9; Outer tube 10; Inner tube 11; The first magnetic valve 12; The second magnetic valve 13; Environment temperature sensor 14; Ambient humidity sensor 15; Taphole temperature sensor 16.
The specific embodiment
Further illustrate by reference to the accompanying drawings the specific embodiment of the present utility model: multi-functional adverse current type heat source tower device bag Air Flow loop of the present utility model and flow of solution loop, concrete method of attachment is: Air Flow loop is provided with heat source tower tower body 8, be arranged on the air outlet at heat source tower tower body 8 tops, be arranged on heat source tower tower body 8 bottom surroundings air inlet, be arranged on the filler 7 of heat source tower tower body 8 inside, be successively set on from bottom to up liquid-blocking device 4, speed-changing draught fan 3 and the self-opening rain insensitive device of air outlet below.Flow of solution loop comprises liquid distribution system, the filler 7 that is positioned at heat source tower tower body 8 inside and the collecting tank 9 that is positioned at heat source tower tower body 8 bottoms, collecting tank 9 is positioned at the below of filler 7, collecting tank 9 bottoms are provided with heat source tower solution inlet port and taphole, and are arranged on heat source tower solution inlet port to the first magnetic valve 12 on the outer tube 10 between heat source tower liquid distribution system and the second magnetic valve 13 in inner tube 11.
Self-opening rain insensitive device comprises top fixed head 1, the air valve blades bracing or strutting arrangement 22 and a plurality of level successively that lay respectively at top fixed head 1 both sides stack the rectangular wind valve blade 2 being arranged on described air valve blades bracing or strutting arrangement 22, air valve blades bracing or strutting arrangement 22 lower ends are arranged on heat source tower air outlet, upper end is connected with top fixed head 1, on rectangular wind valve blade 2, be provided with blade rotary axle 21, the two ends of described blade rotary axle 21 are connected with air valve blades bracing or strutting arrangement respectively, when described rectangular wind valve blade 2 is closed, just in time be covered to the blade rotary axle 21 of front a slice rectangular wind valve blade 2, top fixed head 1 and rectangular wind valve blade 2 cover heat source tower air outlet, and there is certain angle of inclination,
Liquid distribution system comprises the first liquid distributor 5 and the second liquid distributor 6 being arranged in parallel, the first liquid distributor 5 is connected with outer tube 10, and the second liquid distributor 6 is connected with inner tube 11, is provided with the first magnetic valve 12 on outer tube 10, in inner tube 11, be provided with the second magnetic valve 13, inner tube 11 is embedded in outer tube 10.
At heat source tower air inlet, environment temperature sensor 14, ambient humidity sensor 15 measures ambient humidity are housed, at heat source tower taphole, temperature sensor 16 is equipped with at place.
When heat source tower summer operation, heat source tower moves large flow rate mode, the fluid that now enters heat source tower is water, and in Air Flow loop, air is from heat source tower air inlet enters heat source tower tower body 8, enter in filler 7, carry out heat and mass with the water in filler 7, air out enters afterwards liquid-blocking device 4 from filler 7, and the droplet carrying in air is removed, from liquid-blocking device 4 out, air is sucked, from self-opening rain insensitive device, flows out heat source tower tower body 8 after pressurization by speed-changing draught fan 3.In flow of solution loop, when water enters heat source tower tower body 8 from heat source tower solution inlet port, the first magnetic valve 12 on outer tube 10 and the second magnetic valve 13 in inner tube 11 are opened simultaneously, water flows into outer tube 10 and inner tube 11 simultaneously, enter respectively the first liquid distributor 5 and the second liquid distributor 6, water will flow out from the first liquid distributor 5 and the second liquid distributor 6, under the anti-motive force of current, the first liquid distributor 5 and the second liquid distributor 6 all will rotate, water is evenly dispensed on filler 7, the water and the air that enter filler 7 carry out heat exchange, the evaporation of part moisture, all the other coolant-temperature gages fall into collecting tank 9 after reducing, finally from heat source tower taphole, flow out.
When heat source tower winter operation, heat source tower operation low discharge pattern, the fluid that now enters heat source tower is solution, in Air Flow loop, air is from heat source tower air inlet enters heat source tower tower body 8, enter in filler 7, carry out heat and mass with the solution in filler 7, air themperature reduces, air out enters afterwards liquid-blocking device 4 from filler 7, the droplet that carries in air is removed, from liquid-blocking device 4 out, air is sucked, from self-opening rain insensitive device, flows out heat source tower tower body 8 after pressurization by speed-changing draught fan 3.In flow of solution loop, when solution enters heat source tower tower body 8 from heat source tower solution inlet port, the second magnetic valve 13 in inner tube 11 is opened, the first magnetic valve 12 on outer tube 10 cuts out, solution will be only from inner tube 11 processes, enter the second liquid distributor 6, solution flows out from the second liquid distributor 6, under the anti-motive force of current, the second liquid distributor 6 will rotate, and while realizing low discharge, solution evenly be dispensed on filler 7, and the solution and the air that flow into filler 7 carry out heat exchange, solution temperature falls into collecting tank 9 after raising, and finally from heat source tower taphole, flows out.
Run into rainy weather, when heat source tower is not worked, speed-changing draught fan 3 does not move, self-opening rain insensitive device will cut out, because rectangular wind valve blade 2 and top fixed head 1 cover heat source tower air outlet, and have certain angle of inclination, rainwater drops on can be along the downward landing of blade on rectangular wind valve blade 2, finally leave whole air-valve, thereby prevent that rainwater from falling into heat source tower tower body 8 from heat source tower air outlet.When heat source tower is worked, speed-changing draught fan 3 is opened, wind-force acts on rectangular wind valve blade 2, according to principle of moments, rectangular wind valve blade 2 will upwards be opened automatically around rotating shaft 21, form air-out passage, when speed-changing draught fan 3 quits work, rectangular wind valve blade 2 again can automatic fall-back under the effect of self gravitation, recovers closed condition.Thereby realize and under heat source tower off working state, prevent that rainwater from entering heat source tower dilute solution, reduce the regeneration demand of solution.
At heat source tower air inlet, environment temperature sensor 14 measures ambient temperature, ambient humidity sensor 15 measures ambient humidity are housed, at heat source tower taphole, temperature sensor 16 are housed and measure heat source tower taphole temperature.Speed-changing draught fan 3 is three fast blower fans, there are high, medium and low three kinds of different rotating speeds, can regulate according to the dry-bulb temperature of environment, wet-bulb temperature and heat source tower outlet solution temperature, when the outlet solution temperature of heat source tower and air dry-bulb temperature, wet-bulb temperature difference are less than setting value, speed-changing draught fan 3 will reduce rotating speed, wind speed is turned down by height, otherwise contrary.Liquid distribution system middle external tube 10 is connected with the first liquid distributor 5, inner tube 11 is connected with the second liquid distributor 6, and inner tube 11 is parallel with outer tube 10, and inner tube 11 is embedded in outer tube 10, thereby guarantee that outer tube 10 and inner tube 11 are separate, the rotation cloth liquid of the first liquid distributor 5 and the second liquid distributor 6 does not interfere with each other.Fluid flow when the heat source tower summer, heat was with winter operation is different, by the control of the first magnetic valve 12 and the second magnetic valve 13, while realizing summer, the first liquid distributor 5 and the second liquid distributor 6 are all worked, realize the even cloth liquid of large flow, and only have the second liquid distributor 6 work during winter, guarantee the even cloth liquid of low discharge, thereby realize heat source tower, can realize even cloth liquid, normal operation with summer operation when the flow of big difference in the winter time.
Claims (5)
1. a multi-functional adverse current type heat source tower device, it is characterized in that, this device comprises heat source tower tower body (8), is arranged on Air Flow loop and flow of solution loop in described heat source tower tower body (8), described Air Flow loop comprise be arranged on heat source tower tower body (8) top air outlet, be arranged on heat source tower tower body (8) bottom surrounding air inlet, be arranged on heat source tower tower body (8) inner filler (7), the liquid-blocking device (4) that is successively set on from bottom to up air outlet, speed-changing draught fan (3) and self-opening rain insensitive device; Described flow of solution loop comprises the collecting tank (9) that is positioned at described heat source tower tower body (8) inner liquid distribution system, filler (7) and is positioned at heat source tower tower body (8) bottom, described liquid distribution system is positioned between liquid-blocking device (4) and filler (7), described collecting tank (9) is positioned at the below of filler (7), and collecting tank (9) bottom is provided with heat source tower solution inlet port and outlet;
Described self-opening rain insensitive device comprises top fixed head (1), the air valve blades bracing or strutting arrangement (22) and a plurality of level successively that lay respectively at described top fixed head (1) both sides stack the rectangular wind valve blade (2) being arranged on described air valve blades bracing or strutting arrangement (22), described air valve blades bracing or strutting arrangement (22) lower end is arranged on heat source tower air outlet, upper end is connected with top fixed head (1), on described rectangular wind valve blade (2), be provided with blade rotary axle (21), the two ends of described blade rotary axle (21) are connected with air valve blades bracing or strutting arrangement respectively, when described rectangular wind valve blade (2) is closed, just in time be covered to the blade rotary axle (21) of front a slice rectangular wind valve blade (2), top fixed head (1) and rectangular wind valve blade (2) cover heat source tower air outlet, and there is certain angle of inclination,
Described liquid distribution system comprises the first liquid distributor (5) and the second liquid distributor (6) being arranged in parallel, described the first liquid distributor (5) is connected with outer tube (10), described the second liquid distributor (6) is connected with inner tube (11), on described outer tube (10), be provided with the first magnetic valve (12), in described inner tube (11), be provided with the second magnetic valve (13), described inner tube (11) is embedded in outer tube (10).
2. multi-functional adverse current type heat source tower device according to claim 1, it is characterized in that, described air inlet place is provided with environment temperature sensor (14) and ambient humidity sensor (15), and described heat source tower taphole place is provided with temperature sensor (16).
3. multi-functional adverse current type heat source tower device according to claim 1 and 2, is characterized in that, described speed-changing draught fan (3) is three fast blower fan or frequency conversion fans.
4. multi-functional adverse current type heat source tower device according to claim 1 and 2, is characterized in that, described self-opening rain insensitive device is the unpowered air-valve with speed-changing draught fan (3) synchronous opening/closing.
5. multi-functional adverse current type heat source tower device according to claim 1 and 2, it is characterized in that, the import of described outer tube (10) and inner tube (11) is heat source tower solution inlet port, whether, the work of controlling the second liquid distributor (6) by the second magnetic valve (13) whether in the work of controlling the first liquid distributor (5) by the first magnetic valve (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320400540.XU CN203479057U (en) | 2013-07-08 | 2013-07-08 | Multifunctional reverse-flow type heat source tower device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320400540.XU CN203479057U (en) | 2013-07-08 | 2013-07-08 | Multifunctional reverse-flow type heat source tower device |
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| Publication Number | Publication Date |
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| CN203479057U true CN203479057U (en) | 2014-03-12 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201320400540.XU Withdrawn - After Issue CN203479057U (en) | 2013-07-08 | 2013-07-08 | Multifunctional reverse-flow type heat source tower device |
Country Status (1)
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103344131A (en) * | 2013-07-08 | 2013-10-09 | 东南大学 | Counter-flow-type heat source tower device applicable to wide-range variable flow rate |
| CN104791822A (en) * | 2015-04-16 | 2015-07-22 | 清华大学 | Multi-layer parallel-connection overlaid frame type spraying flue gas waste heat recovery and heat exchange device |
| CN105043130A (en) * | 2015-07-31 | 2015-11-11 | 芜湖真空科技有限公司 | Cooling tower |
-
2013
- 2013-07-08 CN CN201320400540.XU patent/CN203479057U/en not_active Withdrawn - After Issue
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103344131A (en) * | 2013-07-08 | 2013-10-09 | 东南大学 | Counter-flow-type heat source tower device applicable to wide-range variable flow rate |
| CN103344131B (en) * | 2013-07-08 | 2015-01-07 | 东南大学 | Counter-flow-type heat source tower device applicable to wide-range variable flow rate |
| CN104791822A (en) * | 2015-04-16 | 2015-07-22 | 清华大学 | Multi-layer parallel-connection overlaid frame type spraying flue gas waste heat recovery and heat exchange device |
| CN105043130A (en) * | 2015-07-31 | 2015-11-11 | 芜湖真空科技有限公司 | Cooling tower |
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Granted publication date: 20140312 Effective date of abandoning: 20150107 |
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