CN217236169U - Efficient water smoke formula air cooler - Google Patents
Efficient water smoke formula air cooler Download PDFInfo
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- CN217236169U CN217236169U CN202220374704.5U CN202220374704U CN217236169U CN 217236169 U CN217236169 U CN 217236169U CN 202220374704 U CN202220374704 U CN 202220374704U CN 217236169 U CN217236169 U CN 217236169U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
- Y02B30/54—Free-cooling systems
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Abstract
The utility model relates to an efficient water mist type air cooler, including pipe case (1), its upper portion even has water collector (2) and draught fan (3), the lower part is equipped with shutter (4), inside is equipped with tube sheet (1 a), even have oval tube bank (5) and atomizer (6) of mutually supporting on tube sheet (1 a), atomizer (6) include clearance department atomizer (61) and import department atomizer (62), clearance department atomizer (61) locate between two adjacent oval tube bank (5), import department atomizer (62) locate between oval tube bank (5) and shutter (4) of the bottom, the one end of first injection spray pipe (61 a) and second injection spray pipe (62 a) all links to each other with spraying water pipe (7); the bottom of the pipe box (1) is also provided with a sewage draining outlet (8). The utility model has the advantages that the heat absorption is effectual, and the shower water quantity is few, and water conservation environmental protection, energy-conservation are high-efficient, have slowed down the scale deposit speed of tube bank.
Description
Technical Field
The utility model belongs to the technical field of air cooler equipment technique and specifically relates to an efficient water smoke formula air cooler.
Background
The wet type air cooler can be classified into a humidifying type, a spray type and a surface evaporation type according to different water spraying modes. The working mechanism of the humidifying wet air cooler is that during the working process of the air cooler, atomized water is sprayed at the air inlet to humidify and cool the inlet air of the air cooler, so that the temperature difference between the air inlet temperature and the temperature of the hot fluid outlet in the pipe is increased to enhance heat transfer. The working mechanism of the spray type wet air cooler is that fog-like water is directly sprayed to the tube bundle at the air inlet in the working process of the air cooler, a small amount of water is evaporated on the tube bundle, and the air is humidified by the sprayed water to be cooled, so that the aim of enhancing heat transfer outside the tube is fulfilled. The surface evaporation type air cooler combines the advantages of air cooling and water cooling, the internal heat transfer and mass transfer processes occur simultaneously, the sensible heat of cooling water and the vaporization latent heat of a water film outside the pipe are utilized to take away heat, the outlet temperature of working media inside the pipe can be cooled to be close to the temperature of an environmental wet bulb, and the wet air cooler has the remarkable advantages of compact size, high heat transfer efficiency and the like, and is generally applied to various fields of electric power, chemical engineering and the like.
Although the wet air cooler is greatly improved in water saving compared with a water cooler, the spraying water has low heat absorption capacity, and a large amount of circulating cooling water needs to be sprayed to achieve the refrigeration effect, so that the application of the wet air cooler is still greatly limited in severe water shortage areas in the middle and western parts of China; the tube bundle of the wet air cooler is soaked in the circulating cooling water for a long time, and a large amount of mineral substances which are rich in Mg (HCO) exist in the water 3 ) 2 With Ca (HCO) 3 ) 2 In the form of bicarbonate dissolved in water, Mg (HCO) 3 ) 2 With Ca (HCO) 3 ) 2 Is easy to be decomposed by heating to generate slightly soluble salts to be deposited on the surfaces of the tube bundles. The generation of the scale layer seriously influences the heat transfer efficiency of the tube bundle, greatly reduces the cooling effect of the process medium, ensures that enterprises have to adopt measures of serially connecting more air coolers, increasing the spraying water quantity, improving the head-on wind speed and the like to meet the requirement of the refrigerating output, and increases the energy consumption. At present, the scale formation of the tube bundle is slowed down mainly by hard water softening, water treatment agent feeding and regular cleaning,but the cost of spray water purification is higher, and hard water is directly used as spray water by many enterprises; the circulating water system of wet air cooler, fin tube bank isotructure are complicated, have increased the investment construction cost of system and the operation human cost in later stage to a certain extent, have reduced the economic benefits of equipment.
SUMMERY OF THE UTILITY MODEL
The utility model discloses the purpose is exactly in order to solve the problem that current air cooler structure is complicated, scale deposit speed is high, heat exchange efficiency is low and not environmental protection, an efficient water smoke formula air cooler is provided, adopt the elliptical pipe as the heat exchange tube reinforce heat transfer, utilize water smoke evaporative cooling technique to realize cooling or the interior high temperature process medium of condenser pipe, reduce structure complexity, slow down outside of tubes scale deposit speed, heat exchange efficiency is improved, make it save water more, energy-conservation, in order to satisfy china's present stage sustainable development's demand.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
a high-efficiency water mist type air cooler comprises a pipe box, wherein the upper part of the pipe box is connected with a water receiver, an induced draft fan is connected above the water receiver, and a group of shutters are arranged at the lower part of the pipe box and used for enabling external air to enter a box body from the shutters through the induced draft fan;
the pipe box is internally provided with a pipe plate, the pipe plate is connected with an elliptical pipe bundle group and a spraying device which are matched with each other, the elliptical pipe bundle group is transversely arranged below the water collector, the spraying device comprises a gap spraying device and an inlet spraying device, the gap spraying device comprises a first spraying pipe and a first atomizing nozzle which are connected, the first spraying pipe is arranged between two adjacent elliptical pipe bundle groups, the first atomizing nozzle is uniformly arranged on the upper side and the lower side of the first spraying pipe, the inlet spraying device comprises a second spraying pipe and a second atomizing nozzle which are connected, the second spraying pipe is arranged between the lowermost elliptical pipe bundle group and the louver, and the second atomizing nozzle is uniformly arranged on the upper side of the second spraying pipe;
one end of each of the first spray pipe and the second spray pipe is connected with a spray water pipeline so as to be used for spraying cooling water through an atomizing nozzle through the pipelines to cool hot fluid in the elliptical tube bundle;
the bottom of the pipe box is also provided with a drain outlet for discharging sewage for cleaning a scale layer outside the pipe bundle.
Furthermore, the elliptical tube bundle group comprises a group of elliptical tube bundles, the length-diameter ratio of the elliptical tube bundles is 1.75, the elliptical tube bundles are SS304 stainless steel tubes, and each group of elliptical tube bundles is arranged in a staggered manner.
Furthermore, the first spraying pipes and the second spraying pipes are arranged at equal intervals in the width direction of the pipe box, and the axes of the first spraying pipes and the second spraying pipes are perpendicular to the axis of the elliptic pipe bundle.
Further, the induced draft fan is the axial-flow type induced draft fan.
Furthermore, the connection between the elliptical tube bundle and the tube box is in strength expansion connection, so that later maintenance and timely replacement are facilitated.
Further, the tube box is a plug type tube box made of Q345R material.
Compared with the prior art, the utility model discloses a technical scheme's advantage specifically lies in:
(1) because the contact area of the water mist and the pipe bundle is large, the vaporization heat absorption effect is good, and the heat exchange capability is strong, under the condition of the same refrigerating capacity, the water consumption of the water mist type air cooler is less unlike the wet type air cooler in the prior art, and the water spraying amount of the equipment can be adjusted according to the environmental temperature in different seasons, so that the water resource is saved, and the water saving performance of the equipment is further enhanced;
(2) the water consumption of the water mist type air cooler is reduced, so that the total content of calcium and magnesium ions in the equipment is reduced, the forming speed of a scale layer outside the tube bundle is slowed down, the heat exchange efficiency of the tube bundle is improved, the cleaning period of the heat exchange tube bundle is prolonged, and the cleaning and maintenance cost of the heat exchange tube bundle is reduced; if a cooling water purification device is additionally arranged in front of the spraying device, the amount of cooling water to be purified by the water mist type air cooler is greatly reduced, and the water treatment cost is reduced;
(3) based on the inherent streamline structure of the elliptical heat exchange tube, under the same fan power, the air flow resistance outside the elliptical tube is reduced by about 15% -30% compared with that of the circular tube, the transverse arrangement of the elliptical heat exchange tube can be more compact, more elliptical tubes are arranged for heat exchange, and compared with other wet air coolers with the same volume, the water mist type air cooler has a larger heat exchange area;
(4) the flow resistance of air outside the oval heat exchange tube is low, the thinning degree of spray particles is high, the spray particles are uniformly dispersed in the air, and the resistance of the forced flowing air outside the tube is small, so that under the same head-on wind speed, the energy consumption of a fan is greatly reduced, meanwhile, the reduction of the water consumption of the water mist type air cooler and the cancellation of a circulating system also reduce the energy consumption of a water pump, the reduction of the energy consumption of the water pump and the fan reduces the power consumption of equipment, saves electric power resources, and enhances the energy saving property of the equipment;
(5) compared with a surface evaporation type air cooler, the problem of nozzle blockage caused by concentration multiplication of calcium and magnesium ions during water circulation is avoided, the damage probability of the atomizing nozzle is reduced, the service life of the atomizing nozzle is prolonged, and the later maintenance and replacement cost of the nozzle is reduced;
(6) the water mist type air cooler adopts the atomizing system and the light pipe bundle, so that the equipment structure is simplified, the investment and construction cost of the system and the later-stage operation labor cost are reduced, the heat exchange performance is stable, the service life is long, and the economic benefit is high.
Drawings
Fig. 1 is a schematic structural view of an efficient water mist type air cooler of the present invention;
FIG. 2 is a distribution diagram of the elliptical tube bundle group and the spraying tube of the present invention;
fig. 3 is a schematic diagram of the arrangement of the oval tube bundles according to the present invention.
Detailed Description
Example 1
In order to make the present invention more clearly understood, the following is a further description of the present invention, and the specific embodiments described herein are only used to explain the present invention, and are not used to limit the present invention.
Referring to fig. 1, a high efficiency water smoke formula air cooler, its characterized in that:
the water collecting device comprises a tube box 1, wherein the upper part of the tube box 1 is connected with a water collecting device 2, an induced draft fan 3 is connected above the water collecting device 2, and a group of shutters 4 are arranged at the lower part of the tube box 1 and used for introducing external air into a box body from the shutters through the induced draft fan;
referring to fig. 1 and 2, a tube plate 1a is arranged in the tube box 1, and an elliptical tube bundle group 5 and a spraying device 6 which are matched with each other are connected to the tube plate 1 a;
referring to fig. 3, the elliptical tube bundle group 5 is transversely arranged below the water collector 2, and comprises a group of elliptical tube bundles 5a, the length-diameter ratio of the elliptical tube bundles 5a is 1.75, the elliptical tube bundles are SS304 stainless steel tubes, and each group of elliptical tube bundles 5a adopts a staggered arrangement mode;
referring to fig. 1 and 2, the spraying device 6 includes a gap spraying device 61 and an inlet spraying device 62, the gap spraying device 61 includes a first spraying pipe 61a and a first atomizing nozzle 61b which are connected, the first spraying pipe 61a is disposed between two adjacent elliptical tube bundle groups 5, the first atomizing nozzle 61b is uniformly disposed on the upper and lower sides of the first spraying pipe 61a, the inlet spraying device 62 includes a second spraying pipe 62a and a second atomizing nozzle 62b which are connected, the second spraying pipe 62a is disposed between the lowermost elliptical tube bundle group 5 and the louver 4, and the second atomizing nozzle 62b is uniformly disposed on the upper side of the second spraying pipe 62 a;
the first spray pipes 61a and the second spray pipes 62a are arranged at equal intervals in the width direction of the tube box 1, and the axes thereof are perpendicular to the axis of the elliptical tube bundle 5 a;
one ends of the first spray pipe 61a and the second spray pipe 62a are connected with the spray water pipeline 7 so as to spray cooling water through the atomizing nozzles through the pipelines to cool the hot fluid in the elliptical tube bundle;
the bottom of the channel box 1 is also provided with a sewage draining outlet 8 for draining sewage for cleaning a scale layer outside the tube bundle.
The utility model discloses in, receive hydrophone 2 and use the PVC material, the dryer adopts the glass steel material. The aspect ratio of the elliptical tube bundle 5a is 1.75, because the elliptical tubes with the aspect ratio of about 1.75 have better heat exchange performance, the elliptical tubes are made of SS304 stainless steel materials. The elliptical tube bundle 5a is arranged in a staggered manner, the number of tubes of two adjacent rows of tube bundles can be the same or different, the heat exchange tubes and the tube boxes are in expansion joint connection in strength, so that the maintenance and the timely replacement are convenient, and the tube boxes 1 are made of pipe plugging type tube boxes and made of Q345R materials. The air flow resistance outside the oval tube is lower, the heat loss is small, the heat exchange effect of the air transverse grazing tube bundle is good, the transverse arrangement of the tube bundle is more compact, the heat exchange area is increased, and the heat exchange capability of the equipment is improved. Meanwhile, the elliptical tube has strong self-soot blowing capability and small flow resistance outside the tube, and the problems of large resistance, difficult cleaning and the like caused by the arrangement of the fork arrangement are solved.
In the embodiment, water mist is sprayed into the water mist type air cooler by the spraying device 6 to be mixed with air for heat and mass transfer, and the atomizing nozzles are uniformly arranged on the upper side and the lower side of the spraying pipe close to the pipe bundle. The spray pipe is a carbon steel galvanized pipe, and has strong corrosion resistance and long service life. The atomizing nozzle adopts an air-assisted atomizing nozzle, compressed gas and liquid collide and atomize through the unique design structure of the air atomizing nozzle, the pressure of the compressed gas is 4 bar, the pressure of the liquid is 1 bar, the flow rate of the liquid is 100L/h, the flow rate of the gas is about 200L/min, and the diameter of atomized water drops can reach below 25 mu m. The air-assisted atomizing nozzle is generally used for atomizing occasions with small particle sizes, and air directly impacts a liquid film so as to accelerate the breakage of the liquid film. By the action of the auxiliary air, smaller droplets can be obtained. Meanwhile, the air helps to disperse the liquid drops, prevents the liquid drops from colliding with each other, and has a better vaporization and heat absorption effect.
In this embodiment, the transportation mode of the process medium in the elliptical tube bundle 5a is from top to bottom, the inlet of the process medium is on the top, and the outlet is on the bottom. The flowing mode of air and liquid drops in the equipment is from bottom to top, and the process medium in the pipe is transported from top to bottom to form countercurrent heat exchange, so that the heat exchange efficiency of the equipment is enhanced.
In this embodiment, one deck atomizer 6 is arranged in the clearance department between every two tube passes of oval tube bank 5, and the space between the make full use of tube bank tube pass has reduced the equipment volume increase that arouses because of installing atomizer additional as far as possible. Due to the limitation of the pipe box, the atomizing pipes cannot be arranged in the length direction of the water mist type air cooler like the elliptical pipe bundles, and therefore the atomizing pipes are arranged in the width direction of the equipment at equal intervals and are arranged in a cross shape with the elliptical pipe bundles. The arrangement mode of the spraying device is favorable for uniformly distributing water mist in the equipment, so that the equipment achieves better heat exchange performance; in addition, the nozzles on the spray pipes are arranged on the upper side and the lower side of the spray pipes close to the pipe bundle at equal intervals, the spray pipes on the upper side of the pipe bundle spray water mist downwards, the spray pipes on the lower side spray water mist upwards, the problems that the water mist outside the pipe bundle at a certain position is too much distributed and can not be completely vaporized, the heat exchange quantity is too low when the water mist outside the pipe bundle at a certain position does not have water mist distribution, and the like can be avoided, and the water mist is guaranteed to be uniformly dispersed around the pipe bundle as far as possible. Is favorable for improving the vaporization amount of the water mist and enhancing the heat exchange performance of the equipment.
In this embodiment, air inlet also sets up atomizer 6, utilizes the limited space of air inlet to increase atomizer, upwards the tube bank spray water smoke, strengthens the tube bank heat transfer of equipment below, satisfies the refrigeration demand of water smoke formula air cooler when summer. Meanwhile, the spraying device is added at the air inlet, so that the temperature and humidity of inlet air can be reduced, the effects of atomization, humidification and cooling are achieved, and heat exchange is enhanced; in addition, atomizing nozzle only sets up in the spray pipe upside, because the atomizer below of air inlet department does not have heat exchange tube bank, so only set up top atomizing nozzle, to the upper tube bank spray water smoke, reduce nozzle quantity, practice thrift the cost. It is worth to say that the incompletely vaporized water mist flows upwards along with the air to exchange heat with the uppermost tube bundle, and a spraying device for spraying the water mist downwards is not arranged at the uppermost part of the elliptical tube bundle, so that the investment and construction cost of the spraying device is reduced.
The utility model discloses a theory of operation is: the water mist type air cooler takes water and air as carriers, and the heat transfer process can be divided into three stages, namely, high-temperature working media in the tubes and low-temperature tube walls conduct heat in a convection mode to release heat, heat is transferred between the inner wall surfaces and the outer wall surfaces of the metal tubes in a heat conduction mode, heat transfer and mass transfer are conducted among the outer wall surfaces of the tubes, water mist and the air, and the heat transfer and the mass transfer occur simultaneously in the process. The water mist type air cooler achieves the purpose of cooling working media by utilizing an evaporative cooling technology, the evaporative cooling is a cooling mode of taking away heat by utilizing latent heat of vaporization when liquid boils, the latent heat of vaporization of the fluid is much larger than the specific heat of the fluid, and therefore the cooling effect of the evaporative cooling is more obvious.
The utility model provides an atomizing nozzle is inside to be collided the atomizing via the unique project organization of air atomizing nozzle by compressed gas and liquid, through auxiliary air's effect, helps the dispersion of liquid drop, prevents the collision between the liquid drop, can make the diameter of atomizing water drop reach below 25 mu m, makes the cooling water possess huge heat transfer surface area, very easily vaporizes. The invention uses the spraying device to improve the vaporization heat absorption capacity of the cooling water sprayed outside the tube bundle so as to replace the heat transferred by the temperature rise of the cooling water and reduce the consumption of the cooling water. The reduction of the cooling water consumption not only saves water resources, but also reduces the total content of calcium and magnesium ions in the equipment, namely Mg (HCO) 3 ) 2 With Ca (HCO) 3 ) 2 When the bicarbonate is decomposed by heat, the content of slightly soluble salts generated is reduced, and the generation rate of scale layers outside the tube bundle is slowed down. The lower part of the water mist type air cooler is provided with a sewage discharge outlet for discharging sewage for cleaning a scale layer outside the tube bundle. And the diameter of the cooling water drops is very small, the cooling water drops can flow along with air, even if the water mist in the equipment is not completely vaporized, the cooling water drops can be driven by the air to be collected by the water collector and then discharged out of the equipment, the water mist type air cooler is simple in structure, and the normal operation of the equipment cannot be influenced under the condition that structures such as a water tank are not available.
The utility model discloses a water smoke formula air cooler can also be according to ambient temperature regulation water spray volume in different seasons. When the temperature is high in summer, the temperature difference between the environment temperature and the process medium in the pipe is small, the spraying device between the pipe passes of the water mist type air cooler and the spraying device at the air inlet can be simultaneously opened, and the spraying amount of equipment is increased to meet the requirement of refrigerating capacity. If the temperature of the medium outlet in the pipe needs to be further reduced, the power of the fan can be properly increased, and the purpose of enhancing heat transfer is achieved by reducing the heat resistance of heat convection and heat transfer outside the pipe by adopting a method of improving the air flow rate. The spraying amount of the spraying device between the tube passes in unit time is larger than that of the spraying device at the air inlet, and when the environmental temperature is not high in spring and autumn, the spraying device at the air inlet can be closed, and only the spraying device between the tube passes is started to exchange heat; when the environmental temperature is lower in spring and autumn, the spraying device between the tube passes can be closed, and only the spraying device at the air inlet is started to exchange heat. When the winter is extremely cold, the spraying devices at two positions can be closed at the same time, and air cooling is completely used. On the premise of meeting the refrigerating capacity of equipment, the valves of the spraying devices at the gaps between the tube passes of the elliptical tube bundle and the air inlet are switched on and off to supply spraying water as required. The spraying device between the tube pass and the spraying device at the air inlet are mutually independent and flexible to use, the rate of scaling outside the tube bundle is reduced while water is saved, the power consumption of the fan and the water pump is reduced, and the wet-type air cooler has higher cost performance compared with other wet-type air coolers.
In the using process, the device of the utility model can meet the requirement that the water treatment amount in summer is 450m 3 And h, under the condition that the inlet temperature of the process water is 52 ℃, the outlet temperature is reduced to be below 40 ℃, the used spraying water amount is 2.31kg/s, and the power of the fan is 30 kw. The amount of spray water can be adjusted, the working requirements of different refrigerating capacities are met, and water and energy conservation of the equipment is realized.
In addition to the above embodiments, the present invention may have other embodiments. All the technical solutions formed by adopting equivalent substitutions or equivalent transformations fall within the protection scope claimed by the present invention.
Claims (6)
1. The utility model provides an efficient water smoke formula air cooler which characterized in that:
the device comprises a tube box (1), wherein the upper part of the tube box (1) is connected with a water collector (2), an induced draft fan (3) is connected above the water collector (2), and the lower part of the tube box (1) is provided with a group of shutters (4);
a tube plate (1 a) is arranged in the tube box (1), an elliptical tube bundle group (5) and a spraying device (6) which are matched with each other are connected to the tube plate (1 a), the elliptical tube bundle group (5) is transversely arranged below the water collector (2), the spraying device (6) comprises a gap spraying device (61) and an inlet spraying device (62), the gap spraying device (61) comprises a first spraying tube (61 a) and a first atomizing nozzle (61 b) which are connected, the first spraying tube (61 a) is arranged between two adjacent elliptical tube bundle groups (5), the first atomizing nozzle (61 b) is uniformly arranged on the upper side and the lower side of the first spraying tube (61 a), the inlet spraying device (62) comprises a second spraying tube (62 a) and a second atomizing nozzle (62 b) which are connected, the second spraying tube (62 a) is arranged between the elliptical tube bundle group (5) on the lowest side and the louver (4), the second atomizing nozzles (62 b) are uniformly arranged on the upper side of the second atomizing pipe (62 a);
one end of each of the first spray pipe (61 a) and the second spray pipe (62 a) is connected with a spray water pipeline (7);
the bottom of the pipe box (1) is also provided with a sewage draining outlet (8).
2. The efficient water mist type air cooler as recited in claim 1, wherein:
the oval tube bundle group (5) comprises a group of oval tube bundles (5 a), the length-diameter ratio of the oval tube bundles (5 a) is 1.75, the oval tube bundles are SS304 stainless steel tubes, and each group of oval tube bundles (5 a) is arranged in a staggered manner.
3. The efficient water mist type air cooler as recited in claim 2, wherein:
the first spraying pipes (61 a) and the second spraying pipes (62 a) are arranged at equal intervals in the width direction of the pipe box (1), and the axes of the first spraying pipes and the second spraying pipes are perpendicular to the axis of the elliptical pipe bundle (5 a).
4. The efficient water mist type air cooler as claimed in any one of claims 1 to 3, wherein:
the draught fan (3) is an axial-flow draught fan.
5. The efficient water mist type air cooler as recited in claim 2, wherein:
the connection between the elliptical tube bundle (5 a) and the tube box (1) is strength expansion connection.
6. The efficient water mist type air cooler as recited in claim 1, wherein:
the pipe box (1) is a plug type pipe box made of Q345R material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220374704.5U CN217236169U (en) | 2022-02-24 | 2022-02-24 | Efficient water smoke formula air cooler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220374704.5U CN217236169U (en) | 2022-02-24 | 2022-02-24 | Efficient water smoke formula air cooler |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217236169U true CN217236169U (en) | 2022-08-19 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220374704.5U Active CN217236169U (en) | 2022-02-24 | 2022-02-24 | Efficient water smoke formula air cooler |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217236169U (en) |
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2022
- 2022-02-24 CN CN202220374704.5U patent/CN217236169U/en active Active
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