CN210602867U - Novel cooling tower for cooling oil medium - Google Patents
Novel cooling tower for cooling oil medium Download PDFInfo
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- CN210602867U CN210602867U CN201921474050.8U CN201921474050U CN210602867U CN 210602867 U CN210602867 U CN 210602867U CN 201921474050 U CN201921474050 U CN 201921474050U CN 210602867 U CN210602867 U CN 210602867U
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Abstract
The utility model belongs to the field of cooling towers, in particular to a novel cooling tower of a cooling oil medium, aiming at the problems that the existing cooling tower can retain impurities in the cooling tower due to long-time use, the cooling tower needs to be disassembled for cleaning the impurities, and the operation is complicated, the utility model provides a scheme which comprises a cooling tower main body, wherein the bottom of the cooling tower main body is fixedly connected with a cooling oil tank, one side of the cooling oil tank is fixedly connected with an oil well pump, the input end of the oil well pump is fixedly connected with an oil inlet pipe in a sealing way, and one end of the oil inlet pipe extends into the cooling oil tank, the utility model has reasonable structure, can rotate two scraping plates by rotating a dynamic pressure shaft, thereby scraping the impurities on a filter screen, and the impurities are discharged through a blow-off pipe, so that the cooling tower main body does not need to be disassembled to clean the internal impurities, is simple and convenient, meanwhile, the cooling oil can be recycled, so that resources are saved.
Description
Technical Field
The utility model relates to a cooling tower technical field especially relates to a novel cooling tower of coolant oil medium.
Background
The cooling tower is a device which uses water as a circulating coolant, absorbs heat from a system and discharges the heat to the atmosphere so as to reduce the water temperature, the cold is an evaporation heat dissipation device which generates steam by utilizing the cold and heat exchange after the water flows and contacts with air, the steam volatilizes and takes away the heat to achieve the principles of evaporation heat dissipation, convection heat transfer, radiation heat transfer and the like so as to dissipate the waste heat generated in the industry or a refrigeration air conditioner so as to reduce the water temperature, so as to ensure the normal operation of the system, and the device is generally barrel-shaped, so the device is named as the cooling tower.
Most of existing cooling towers use water as a coolant, cooling oil adopted by novel cooling towers serves as a medium, so that the cooling effect is better, but due to long-time use, impurities can be remained in the cooling towers, the cooling towers are required to be disassembled for cleaning the impurities, and the operation is complex, so that the novel cooling towers with the cooling oil medium are provided for solving the problems.
SUMMERY OF THE UTILITY MODEL
The utility model aims at solving the problem that the existing cooling tower in the prior art can leave the impurities in the cooling tower due to long-time use, the cleaning impurities need to be disassembled from the cooling tower, the defects of complex operation are overcome, and the novel cooling tower of the cooling oil medium is provided.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
a novel cooling tower for cooling oil medium comprises a cooling tower main body, wherein a cooling oil tank is fixedly connected to the bottom of the cooling tower main body, an oil well pump is fixedly connected to one side of the cooling oil tank, an oil inlet pipe is fixedly connected to the input end of the oil well pump in a sealing manner, one end of the oil inlet pipe extends into the cooling oil tank, an input pipe is fixedly connected to the output end of the oil well pump in a sealing manner, one end of the input pipe extends into the cooling tower main body, a plurality of spray heads are arranged on the input pipe at equal intervals, a filler is arranged in the cooling tower main body, a cleaning plate is fixedly connected to the inside of the cooling tower main body and is positioned below the filler, a cleaning groove is formed in the top of the cleaning plate, filter screens are fixedly connected to two sides of the cleaning groove, two connecting pipes are symmetrically and fixedly connected to the, the bottom end of the connecting pipe penetrates through the inner wall of the bottom of the cleaning groove and extends into the cooling oil tank, the bottom of the cleaning plate is rotatably connected with a rotating shaft, the top end of the rotating shaft extends into the cleaning groove, the two sides of the rotating shaft are fixedly connected with the scraping plates, one sides of the two scraping plates, which are far away from each other, are respectively tightly attached to one sides, which are close to the two filter screens, respectively, the rotating shaft is in transmission connection with a rotating rod, one end of the rotating rod is in transmission connection with a pressing shaft, cooling oil can be pumped out through an oil well pump, so that cooling is realized, the cleaning groove and the filter screens can be used for filtering impurities, clean cooling oil can enter the cooling oil tank again through the connecting pipe for recycling, the two scraping plates can be rotated through the rotating pressing shaft, so that the impurities on the filter screens are scraped, the impurities are discharged through the blow-off pipe, the cooling tower is simple and convenient, and the service life of the cooling tower main body is prolonged.
Preferably, the bottom end of the rotating shaft and the other end of the rotating rod are fixedly sleeved with bevel gears, the two bevel gears are meshed with each other, and the two bevel gears are arranged and can provide power for the rotating shaft.
Preferably, the one end fixedly connected with fixed plate of pressure moving axis, two montants of one side symmetry fixedly connected with of fixed plate, the same outer ring gear of one end fixedly connected with of two montants, fixed cover is equipped with interior ring gear on the bull stick, interior ring gear meshes with outer ring gear mutually, the one end fixedly connected with cardboard of bull stick, two draw-in grooves have been seted up to one side symmetry of cardboard, two bayonet locks of one side symmetry fixedly connected with of fixed plate, two bayonet locks are located between two montants, the bayonet lock clamps with the draw-in groove mutually, through pushing away the pressure moving axis, can make the fixed plate be connected with the cardboard, can make outer ring gear break away from the meshing of interior ring gear simultaneously, and then can make the pressure moving axis drive the bull stick and rotate.
Preferably, one side of cooling tower main part is equipped with the inlet tube, the one end of inlet tube extends to in the clean groove, sealed fixedly connected with blow off pipe on the bottom inner wall of clean groove, the one end of blow off pipe runs through the bottom inner wall of clean groove and extends to the opposite side of cooling tower main part, sets up the inlet tube, can make things convenient for the water to pass through the blow off pipe with impurity and discharge, need not unpack the cooling tower main part apart and clear up convenient and fast.
Preferably, the top fixedly connected of cooling tower main part has the fan frame, fixedly connected with fan on the top inner wall of fan frame, a plurality of ventilation holes have been seted up to the equidistant of top of fan frame, through setting up the fan, can discharge the damp and hot air in the cooling tower main part, can accelerate the circulation of air, increase the cooling effect.
The utility model discloses in, a novel cooling tower of coolant oil medium, owing to set up the pressure moving axis, can make the fixed plate remove through promoting the pressure moving axis, and then can make in the bayonet lock card goes into the draw-in groove, make fixed plate and cardboard connect, when the fixed plate removed, can make the montant drive outer ring gear break away from the meshing of interior ring gear, just so can remove the restriction to the bull stick, then rotation moving axis, the pressure moving axis just can make the bull stick rotate, and then can drive the pivot through two bevel gears and rotate, just so can make the scraper blade strike off impurity, it leads to water through the inlet tube, just can discharge impurity through the blow off pipe, just so need not demolish old inside impurity that can clear up with the cooling tower main part, and is simple and convenient, the service life of cooling tower main part is prolonged.
Owing to set up the connecting pipe, can with in the cooling oil reentrant cooling oil tank, circulated use has practiced thrift the resource, simultaneously through the fan, can discharge the damp and hot air in the cooling tower main part, can accelerate the circulation of air, increase cooling effect.
The utility model discloses it is rational in infrastructure, through rotating dynamic pressure moving axis, just can make two scraper blades rotate to strike off the impurity on the filter screen, impurity discharges through the blow off pipe, just so need not demolish the cooling tower main part old can clear up inside impurity, and is simple and convenient, improves the life of cooling tower main part, and the resource has been practiced thrift in the coolant oil can used cyclically simultaneously.
Drawings
Fig. 1 is a schematic structural view of a cooling tower for cooling oil medium according to the present invention;
FIG. 2 is a schematic cross-sectional view of a cleaning plate of a novel cooling tower for cooling oil medium according to the present invention;
fig. 3 is an enlarged schematic structural diagram of a part a of the novel cooling tower for cooling oil medium according to the present invention.
In the figure: the device comprises a cooling tower body 1, a cooling oil tank 2, an oil pump 3, an input pipe 4, a filler 5, a cleaning plate 6, a connecting pipe 7, a cleaning groove 8, a filter screen 9, a scraper 10, a rotating shaft 11, a rotating rod 12, a pressing shaft 13, a fixing plate 14, a vertical rod 15, an inner gear ring 16, a clamping plate 17, an outer gear ring 18, a clamping pin 19, a bevel gear 20, a water inlet pipe 21, a sewage discharge pipe 22, a fan frame 23 and a fan 24.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.
Example one
Referring to fig. 1-3, a novel cooling tower for cooling oil medium comprises a cooling tower main body 1, a cooling oil tank 2 is fixedly connected to the bottom of the cooling tower main body 1, an oil well pump 3 is fixedly connected to one side of the cooling oil tank 2, an oil inlet pipe is fixedly connected to the input end of the oil well pump 3 in a sealing manner, one end of the oil inlet pipe extends into the cooling oil tank 2, an input pipe 4 is fixedly connected to the output end of the oil well pump 3 in a sealing manner, one end of the input pipe 4 extends into the cooling tower main body 1, a plurality of nozzles are arranged on the input pipe 4 at equal intervals, a filler 5 is arranged in the cooling tower main body 1, a cleaning plate 6 is fixedly connected in the cooling tower main body 1, the cleaning plate 6 is positioned below the filler 5, a cleaning groove 8 is arranged at the top of the cleaning plate 6, a filter screen 9 is fixedly connected to both, be equipped with the delivery valve on the connecting pipe 7, the bottom of connecting pipe 7 runs through the bottom inner wall of clean groove 8 and extends to in the cooling oil tank 2, the bottom of clean board 6 is rotated and is connected with pivot 11, the top of pivot 11 extends to in the clean groove 8, the equal fixedly connected with scraper blade 10 in both sides of pivot 11, one side that two scraper blades 10 kept away from each other closely laminates with one side that two filter screens 9 are close to each other respectively, the transmission is connected with bull stick 12 in the pivot 11, the one end transmission of bull stick 12 is connected with pressure axis 13.
The utility model discloses in, the bottom of pivot 11 and the other end of bull stick 12 are all fixed the cover and are equipped with bevel gear 20, and two bevel gears 20 mesh mutually.
The utility model discloses in, press the one end fixedly connected with fixed plate 14 of axle 13, two montants 15 of a side-to-side symmetry fixedly connected with of fixed plate 14, the same outer ring gear 18 of one end fixedly connected with of two montants 15, fixed cover is equipped with interior ring gear 16 on the bull stick 12, interior ring gear 16 meshes with outer ring gear 18 mutually, the one end fixedly connected with cardboard 17 of bull stick 12, two draw-in grooves have been seted up to a side symmetry of cardboard 17, two bayonet locks 19 of a side-to-side symmetry fixedly connected with of fixed plate 14, two bayonet locks 19 are located between two montants 15, bayonet lock 19 clamps with the draw-in groove mutually.
The utility model discloses in, one side of cooling tower main part 1 is equipped with inlet tube 21, and in inlet tube 21's one end extended to clean groove 8, sealed fixedly connected with blow off pipe 22 on clean groove 8's the bottom inner wall, blow off pipe 22's one end was run through clean groove 8's bottom inner wall and was extended to the opposite side of cooling tower main part 1.
The utility model discloses in, the top fixed connection of cooling tower main part 1 has fan frame 23, fixedly connected with fan 24 on the top inner wall of fan frame 23, and a plurality of ventilation holes have been seted up to fan frame 23's equidistant top.
Example two
Referring to fig. 1-3, a novel cooling tower for cooling oil medium comprises a cooling tower main body 1, a cooling oil tank 2 welded at the bottom of the cooling tower main body 1, an oil well pump 3 welded at one side of the cooling oil tank 2, an oil inlet pipe welded at the input end of the oil well pump 3 in a sealing manner, an input pipe 4 welded at the output end of the oil well pump 3 in a sealing manner, one end of the input pipe 4 extending into the cooling tower main body 1, a plurality of nozzles arranged at equal intervals on the input pipe 4, a filler 5 arranged in the cooling tower main body 1, a cleaning plate 6 welded in the cooling tower main body 1, the cleaning plate 6 positioned below the filler 5, a cleaning tank 8 arranged at the top of the cleaning plate 6, filter screens 9 welded at both sides of the cleaning tank 8, two connecting pipes 7 symmetrically welded on the inner wall at the bottom of the cleaning tank 8 in a sealing manner, oil outlet valves arranged on the connecting pipes 7, the bottom end of the connecting pipe 7 penetrating through the inner, the bottom of the cleaning plate 6 is rotatably connected with a rotating shaft 11, the top end of the rotating shaft 11 extends into the cleaning groove 8, the two sides of the rotating shaft 11 are welded with the scrapers 10, one side, away from each other, of each of the two scrapers 10 is tightly attached to one side, close to each other, of each of the two filter screens 9, the rotating shaft 11 is in transmission connection with a rotating rod 12, one end of each rotating rod 12 is in transmission connection with a pressing shaft 13, cooling oil can be pumped out through an oil well pump 3, cooling is achieved, the cleaning groove 8 and the filter screens can filter impurities, clean cooling oil can enter the cooling oil tank 2 again through a connecting pipe 7 and can be recycled, the two scrapers 10 can be rotated through the pressing shaft 13, so that the impurities on the filter screens 9 are scraped, the impurities are discharged through a drain pipe 22, the cooling tower main body 1 is not required to be dismantled, the internal impurities can be cleaned, the operation is simple and convenient, and the service life of the, the fixing plate 14 can be moved by pushing the pressing shaft 13, the bayonet 21 can be clamped into the bayonet groove, the fixing plate 14 is connected with the bayonet plate 17, the fixing plate 14 can drive the outer toothed ring 18 to be separated from the meshing of the inner toothed ring 16 by the vertical rod 15 while moving, so that the limitation on the rotating rod 12 can be removed, then the pressing shaft 13 is rotated, the pressing shaft 13 can drive the rotating rod 12 to rotate, the rotating shaft 11 can be driven to rotate by the two bevel gears 20, so that the scraping plate 10 can scrape impurities, the impurities can be discharged through the drain pipe 22 by the water inlet pipe 21, the cooling tower main body 1 does not need to be dismantled, the internal impurities can be cleaned, the operation is simple and convenient, the service life of the cooling tower main body 1 is prolonged, the cooling oil can enter the cooling oil tank again due to the arrangement of the connecting pipe 7, the circulation use can be realized, and the resources are saved, simultaneously through fan 24, can discharge the damp and hot air in the cooling tower main part 1, can accelerate the circulation of air, increase the cooling effect, the utility model discloses rational in infrastructure, through rotating dynamic pressure axis 13, just can make two scraper blades 10 rotate to strike off the impurity on the filter screen 9, impurity discharges through blow off pipe 22, just so need not demolish old inside impurity that can clear up with cooling tower main part 1, and is simple and convenient, improves the life of cooling tower main part 1, and the while coolant oil can recycle, has practiced thrift the resource.
The utility model discloses in, the bottom of pivot 11 and the other end of bull stick 12 are all fixed the cover and are equipped with bevel gear 20, and two bevel gears 20 mesh mutually, set up two bevel gears 20, can provide power for pivot 11.
The utility model discloses in, the one end welding of pressing axle 13 has fixed plate 14, the one side symmetrical welding of fixed plate 14 has two montants 15, the one end welding of two montants 15 has same outer ring gear 18, fixed cover is equipped with interior ring gear 16 on the bull stick 12, interior ring gear 16 meshes with outer ring gear 18 mutually, the one end welding of bull stick 12 has cardboard 17, two draw-in grooves have been seted up to a side symmetry of cardboard 17, a side symmetrical welding of fixed plate 14 has two bayonet locks 19, two bayonet locks 19 are located between two montants 15, bayonet lock 19 clamps with the bayonet lock mutually, through pushing dynamic pressure moving axis 13, can make fixed plate 14 be connected with cardboard 17, can make outer ring gear 18 break away from the meshing of inner ring gear 16 simultaneously, and then can make dynamic pressure axis 13 drive bull stick 12 rotate.
The utility model discloses in, one side of cooling tower main part 1 is equipped with inlet tube 21, and in inlet tube 21's one end extended to clean groove 8, sealing weld had blow off pipe 22 on clean groove 8's the bottom inner wall, and blow off pipe 22's one end runs through clean groove 8's bottom inner wall and extends to cooling tower main part 1's opposite side, sets up inlet tube 21, can make things convenient for the water to pass through blow off pipe 22 with impurity and discharge, need not unpack cooling tower main part 1 apart and clear up convenient and fast.
The utility model discloses in, the top welding of cooling tower main part 1 has fan frame 23, and the welding has fan 24 on the top inner wall of fan frame 23, and a plurality of ventilation holes have been seted up to fan frame 23's equidistant top, through setting up fan 24, can discharge the damp and hot air in the cooling tower main part 1, can accelerate the circulation of air, increase the cooling effect.
In the utility model, when in use, firstly, the oil pump 3 is started, the oil pump 3 sprays the cooling oil in the cooling oil tank 2 through the spray head on the input pipe 4, so as to cool the articles, simultaneously, the fan 24 is started, the fan 24 can accelerate the air circulation, the damp and hot air in the cooling tower main body 1 is discharged, the cooling speed is accelerated, the cooling oil enters the cleaning groove 8 through the filler 5, the impurities are filtered through the filter screen 9, the clean cooling oil enters the cooling oil tank 2 through the connecting pipe 7 for recycling, when the cleaning groove 8 needs to be cleaned, the pressing shaft 13 is pushed at the moment, the pressing shaft 13 can drive the fixing plate 14 to move, the fixing plate 14 can enable the two clamping pins 21 to be clamped into the clamping grooves, so as to be fixedly connected with the clamping plate 17, meanwhile, the vertical rod 15 can enable the outer toothed ring 22 to be separated from the meshing of the inner toothed ring 16, thereby the limitation to the rotating rod 12 is, then the dynamic pressure axle 13 is rotated, the dynamic pressure axle 13 can make the bull stick 12 rotate, the bull stick 12 can drive the pivot 11 through two bevel gears 23 and rotate, the pivot 11 can make two scraper blades 10 rotate, just so can scrape down the impurity on the filter screen 9, then put through the water source with inlet tube 21, lead to water in the clean groove 8, close the delivery valve simultaneously, just so can make the mixture of impurity and water discharge through blow off pipe 22, through just so can not unpack cooling tower main part 1 apart and clear up, the convenience is improved.
The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.
Claims (5)
1. A novel cooling tower for cooling oil medium comprises a cooling tower main body (1) and is characterized in that a cooling oil tank (2) is fixedly connected to the bottom of the cooling tower main body (1), an oil well pump (3) is fixedly connected to one side of the cooling oil tank (2), an oil inlet pipe is fixedly connected to the input end of the oil well pump (3) in a sealing manner, one end of the oil inlet pipe extends into the cooling oil tank (2), an input pipe (4) is fixedly connected to the output end of the oil well pump (3) in a sealing manner, one end of the input pipe (4) extends into the cooling tower main body (1), a plurality of spray heads are arranged on the input pipe (4) at equal intervals, a filler (5) is arranged in the cooling tower main body (1), a cleaning plate (6) is fixedly connected in the cooling tower main body (1), the cleaning plate (6) is positioned below the filler (5), and a cleaning groove (8) is formed in the top of the, the equal fixedly connected with filter screen (9) in both sides of clean groove (8), two connecting pipes (7) of symmetry sealing fixedly connected with on the bottom inner wall of clean groove (8), be equipped with the delivery valve on connecting pipe (7), the bottom of connecting pipe (7) runs through the bottom inner wall of clean groove (8) and extends to in cooling tank (2), the bottom of clean board (6) is rotated and is connected with pivot (11), the top of pivot (11) extends to in clean groove (8), the equal fixedly connected with scraper blade (10) in both sides of pivot (11), one side that two scraper blade (10) kept away from each other closely laminates with one side that two filter screens (9) are close to each other respectively, the transmission is connected with bull stick (12) on pivot (11), the one end transmission of bull stick (12) is connected with pressure axis (13).
2. The novel cooling tower for cooling oil medium as claimed in claim 1, wherein a bevel gear (20) is fixedly sleeved at the bottom end of the rotating shaft (11) and at the other end of the rotating rod (12), and the two bevel gears (20) are meshed.
3. The novel cooling tower for cooling oil medium as claimed in claim 1, wherein a fixing plate (14) is fixedly connected to one end of the pressing shaft (13), two vertical rods (15) are symmetrically and fixedly connected to one side of the fixing plate (14), one end of each vertical rod (15) is fixedly connected to the same outer toothed ring (18), an inner toothed ring (16) is fixedly sleeved on the rotating rod (12), the inner toothed ring (16) is meshed with the outer toothed ring (18), a clamping plate (17) is fixedly connected to one end of the rotating rod (12), two clamping grooves are symmetrically formed in one side of the clamping plate (17), two clamping pins (19) are symmetrically and fixedly connected to one side of the fixing plate (14), the two clamping pins (19) are located between the two vertical rods (15), and the clamping pins (19) are clamped with the clamping grooves.
4. The novel cooling tower for cooling oil medium as claimed in claim 1, wherein a water inlet pipe (21) is arranged at one side of the cooling tower main body (1), one end of the water inlet pipe (21) extends into the cleaning tank (8), a drain pipe (22) is fixedly connected to the inner wall of the bottom of the cleaning tank (8) in a sealing manner, and one end of the drain pipe (22) penetrates through the inner wall of the bottom of the cleaning tank (8) and extends to the other side of the cooling tower main body (1).
5. The novel cooling tower of cooling oil medium of claim 1, characterized in that the top of the cooling tower main body (1) is fixedly connected with a fan frame (23), a fan (24) is fixedly connected to the inner wall of the top of the fan frame (23), and a plurality of ventilation holes are formed in the top of the fan frame (23) at equal intervals.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921474050.8U CN210602867U (en) | 2019-09-06 | 2019-09-06 | Novel cooling tower for cooling oil medium |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921474050.8U CN210602867U (en) | 2019-09-06 | 2019-09-06 | Novel cooling tower for cooling oil medium |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210602867U true CN210602867U (en) | 2020-05-22 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921474050.8U Expired - Fee Related CN210602867U (en) | 2019-09-06 | 2019-09-06 | Novel cooling tower for cooling oil medium |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210602867U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111872463A (en) * | 2020-07-24 | 2020-11-03 | 和县隆盛精密机械有限公司 | Backflow type cooling oil circuit system of numerical control milling machine |
| CN111981756A (en) * | 2020-09-01 | 2020-11-24 | 湖南日灿农业生态科技发展有限公司 | Cooling device for tea oil production and use method thereof |
| CN113932628A (en) * | 2021-10-22 | 2022-01-14 | 杨伟 | Durable cooling tower |
-
2019
- 2019-09-06 CN CN201921474050.8U patent/CN210602867U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111872463A (en) * | 2020-07-24 | 2020-11-03 | 和县隆盛精密机械有限公司 | Backflow type cooling oil circuit system of numerical control milling machine |
| CN111981756A (en) * | 2020-09-01 | 2020-11-24 | 湖南日灿农业生态科技发展有限公司 | Cooling device for tea oil production and use method thereof |
| CN113932628A (en) * | 2021-10-22 | 2022-01-14 | 杨伟 | Durable cooling tower |
| CN113932628B (en) * | 2021-10-22 | 2024-05-03 | 广东金菱制冷工程有限公司 | Durable cooling tower |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200522 Termination date: 20210906 |
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| CF01 | Termination of patent right due to non-payment of annual fee |