CN116858018A - Cleaning device for heat pump heat exchanger fin - Google Patents

Cleaning device for heat pump heat exchanger fin Download PDF

Info

Publication number
CN116858018A
CN116858018A CN202310903580.4A CN202310903580A CN116858018A CN 116858018 A CN116858018 A CN 116858018A CN 202310903580 A CN202310903580 A CN 202310903580A CN 116858018 A CN116858018 A CN 116858018A
Authority
CN
China
Prior art keywords
cleaning
cleaning brush
assembly
air
dust
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN202310903580.4A
Other languages
Chinese (zh)
Inventor
种阳
王为红
沈新忠
种静
种衍启
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Shandong Sunlight Doctor Solar Energy Engineering Co ltd
Original Assignee
Shandong Sunlight Doctor Solar Energy Engineering Co ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Shandong Sunlight Doctor Solar Energy Engineering Co ltd filed Critical Shandong Sunlight Doctor Solar Energy Engineering Co ltd
Priority to CN202310903580.4A priority Critical patent/CN116858018A/en
Publication of CN116858018A publication Critical patent/CN116858018A/en
Pending legal-status Critical Current

Links

Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28HEAT EXCHANGE IN GENERAL
    • F28GCLEANING OF INTERNAL OR EXTERNAL SURFACES OF HEAT-EXCHANGE OR HEAT-TRANSFER CONDUITS, e.g. WATER TUBES OR BOILERS
    • F28G1/00Non-rotary, e.g. reciprocated, appliances
    • F28G1/02Non-rotary, e.g. reciprocated, appliances having brushes
    • HELECTRICITY
    • H05ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05FSTATIC ELECTRICITY; NATURALLY-OCCURRING ELECTRICITY
    • H05F3/00Carrying-off electrostatic charges

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Cleaning In General (AREA)

Abstract

The application discloses a cleaning device for heat pump heat exchanger fins, which relates to the technical field of heat dissipation fin cleaning, and comprises a heat exchange tube and a heat dissipation fin which are assembled in an air conditioner external unit, and a cleaning mechanism, wherein the cleaning mechanism comprises an assembly table and a driving assembly, and the assembly table is provided with a cleaning brush and a swinging assembly; the driving assembly comprises a motor and a threaded rod; the swing assembly includes a swing block and a cross bar. According to the application, the motor drives the cleaning brush to move up and down to clean the radiating fins; the swinging component drives the cleaning brush to transversely and reciprocally swing to whip the radiating fins in the lifting process, so that the contact area and the force between the cleaning brush and the radiating fins are increased; the cleaning brush made of rubber can remove dust on the radiating fins without dead angles, and static electricity is generated in the friction process of the metal fins to adsorb the dust floating in the air; and an electrostatic removing assembly is arranged, and static electricity on the surface of the cleaning brush is removed when the cleaning brush contacts the conductive plate, so that adsorbed dust is sucked into the dust collection box by the air suction pipe.

Description

Cleaning device for heat pump heat exchanger fin
Technical Field
The application relates to the technical field of heat dissipation fin cleaning, in particular to a cleaning device for heat pump heat exchanger fins.
Background
With the development of technology, people invent a heat exchanger to change the environmental temperature, so that a proper living environment is provided, common heat exchangers such as air conditioners and the like become an indispensable part of life of people, and the heat exchange of the existing air conditioners is not assisted by heat dissipation fins.
Heat radiating fins are devices for radiating heat, which are generally composed of a series of sheets with gaps therebetween so that air can pass through and radiate heat, but dust in the air adheres to the surface of the heat radiating fins, and dust impedes the flow of air and increases the surface temperature of the heat radiating fins, which reduces the heat radiating efficiency.
Therefore, the heat radiating fins need to be cleaned regularly, the existing mode is usually cleaned by adopting a blowing tank or special cleaning liquid, wherein the blowing tank directly blows the floating dust on the surfaces of the heat radiating fins, but the floating dust is difficult to clean dirt deposited after rain washing, and the cleaning liquid is convenient and quick in cleaning mode, but water is easily fed into the heat exchanger, so that electronic parts in the heat exchanger are damaged.
Disclosure of Invention
The application aims at: the cleaning device for the heat pump heat exchanger fins is provided for solving the problems that the conventional heat dissipation fin cleaning device provided in the background art is inconvenient to clean and poor in effect.
In order to achieve the above purpose, the application adopts the following technical scheme:
the application provides a cleaning device for heat pump heat exchanger fins, which comprises a heat exchange tube assembled in an air conditioner external unit, a heat radiating fin matched with the heat exchange tube, and a cleaning mechanism for cleaning floating dust on the surface of the heat radiating fin, wherein the cleaning mechanism comprises an assembling table and a driving assembly for driving the assembling table to vertically lift, and the assembling table is provided with a cleaning brush for dust removal and a swinging assembly for driving the cleaning brush to transversely swing;
the driving assembly comprises a motor and a threaded rod assembled on the output end of the motor, the threaded rod vertically penetrates through the assembly table, and a screw hole matched with the threaded rod is formed in the assembly table;
the swinging assembly comprises a swinging block axially and rotatably arranged on the assembly table and a cross rod driven to reciprocate so as to drive the swinging block to rotate, and the cleaning brush is arranged on the swinging block.
Further, the swing block is equipped with towards radiating fin one side the cleaning brush, the cleaning brush is including being used for the blowing pipe of jet-propelled blowing dirt and the air-sucking pipe that the cover is located the blowing pipe outside and is used for the dust absorption, form the passageway that induced drafts between blowing pipe and the air-sucking pipe, the passageway that induced drafts is sealed for swing block one end, the blowing pipe is kept away from swing block one end and is equipped with the cap of blowing of guide wind direction, the cap of blowing communicates with the blowing pipe, be equipped with a plurality of brush hair and offered the dust absorption mouth that is linear array and distribute on the lateral wall of air-sucking pipe.
Further, an air pump is arranged in the air conditioner outer unit, the blowing pipe is communicated to the output end of the air pump through an exhaust pipe, the air suction pipe is communicated to the input end of the air pump through an air inlet pipe, and a dust collection box is arranged at one end, close to the air pump, of the air inlet pipe.
Further, the cleaning brushes are in one-to-one correspondence with the radiating fins at intervals.
Further, the swing block is provided with a notch relative to one side of the radiating fin, a waist groove is formed in the side wall of the adjacent side of the notch, a cross rod penetrates through the notch and is arranged on the assembly table, and a first limiting rod matched with the waist groove is arranged on the side wall of the cross rod.
Further, the assembly table is equipped with the guide post for threaded rod one end symmetry, offered on the lateral wall of guide post and be the guide way that snakelike extends, be equipped with the second gag lever post with the guide way adaptation on the lateral wall of horizontal pole.
Further, the cleaning mechanism further comprises a static eliminating assembly, the static eliminating assembly comprises a conducting plate arranged right below the radiating fins, and a grounded conducting wire is arranged on the side wall of the conducting plate.
Compared with the prior art, the above technical scheme has the following beneficial effects:
the application provides a heat pump cleaning device of heat exchanger fin:
the motor drives the cleaning brush to move up and down in the gaps of the radiating fins so as to clean floating dust on the surfaces of the radiating fins;
the swinging component drives the cleaning brush to transversely and reciprocally swing to whip the radiating fins in the lifting process, so that the contact area and the force of the cleaning brush and the radiating fins are increased, and the cleaning effect of the cleaning brush on dirt on the surface of the radiating fins is improved;
the cleaning brush made of rubber material is adopted, so that dust on the radiating fins can be removed without dead angles in the cleaning process, static electricity is generated in the friction process of the metal fins, and the dust floating in the air is adsorbed, so that the dust removing effect is improved;
the static electricity removing assembly is arranged, static electricity on the surface of the cleaning brush is removed when the cleaning brush contacts the conductive plate, so that adsorbed dust is sucked into the dust collecting box by the air suction pipe, and the dust removing efficiency is improved.
Drawings
The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this specification, illustrate embodiments of the application and together with the description serve to explain the application.
In the drawings:
fig. 1 is a schematic structural view of an air conditioner outdoor unit provided by the application;
FIG. 2 is a schematic view of a cleaning mechanism according to the present application;
FIG. 3 is a schematic cross-sectional view of a cleaning mechanism according to the present application;
FIG. 4 is an enlarged view of FIG. 3 at A;
FIG. 5 is an enlarged view of FIG. 4 at B;
FIG. 6 is a schematic view of a cleaning mechanism according to another embodiment of the present application;
FIG. 7 is an enlarged view of FIG. 6 at C;
FIG. 8 is an enlarged view of FIG. 7 at D;
fig. 9 is a schematic diagram of dust removal of a cleaning brush according to the present application.
In the figure:
100. an air conditioner external unit; 110. a heat exchange tube; 120. a heat radiation fin; 200. an assembly table; 201. a threaded rod; 202. a motor; 203. a guide post; 204. a guide groove; 205. a swinging block; 206. a cross bar; 207. a second limit rod; 208. a first stop lever; 209. a cleaning brush; 210. an air suction pipe; 211. a blowing pipe; 212. a dust collection port; 213. a blowing cap; 214. an air outlet; 215. an air inlet pipe; 216. an exhaust pipe; 300. a conductive plate; 301. and (5) conducting wires.
Detailed Description
In order that those skilled in the art will better understand the present application, a technical solution in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in which it is apparent that the described embodiments are only some embodiments of the present application, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the present application without making any inventive effort, shall fall within the scope of the present application.
It should be noted that the terms "first," "second," and the like in the description and the claims of the present application and the above figures are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used may be interchanged where appropriate in order to describe the embodiments of the application herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.
In the present application, the terms "upper", "lower", "left", "right", "front", "rear", "top", "bottom", "inner", "outer", "middle", "vertical", "horizontal", "lateral", "longitudinal" and the like indicate an azimuth or a positional relationship based on that shown in the drawings. These terms are only used to better describe the present application and its embodiments and are not intended to limit the scope of the indicated devices, elements or components to the particular orientations or to configure and operate in the particular orientations.
Also, some of the terms described above may be used to indicate other meanings in addition to orientation or positional relationships, for example, the term "upper" may also be used to indicate some sort of attachment or connection in some cases. The specific meaning of these terms in the present application will be understood by those of ordinary skill in the art according to the specific circumstances.
Furthermore, the terms "mounted," "configured," "provided," "connected," "coupled," and "sleeved" are to be construed broadly. For example, it may be a fixed connection, a removable connection, or a unitary construction; may be a mechanical connection, or an electrical connection; may be directly connected, or indirectly connected through intervening media, or may be in internal communication between two devices, elements, or components. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art according to the specific circumstances.
Referring to fig. 1 to 9, the cleaning device for heat pump heat exchanger fins provided by the application comprises a heat exchange tube 110 assembled in an air conditioner outdoor unit 100, a heat dissipation fin 120 matched with the heat exchange tube 110, and a cleaning mechanism for cleaning floating dust on the surface of the heat dissipation fin 120, wherein the cleaning mechanism comprises an assembling table 200 and a driving component for driving the assembling table 200 to vertically lift, the assembling table 200 is provided with a cleaning brush 209 for dust removal and a swinging component for driving the cleaning brush 209 to transversely swing, the cleaning brush 209 corresponds to the heat dissipation fin 120 at intervals one by one, and the cleaning brush 209 scrapes the floating dust attached to the surface of the heat dissipation fin 120 along with the lifting movement of the assembling table 200;
as shown in fig. 2, the driving assembly includes a motor 202 and a threaded rod 201 assembled on an output end of the motor 202, the threaded rod 201 vertically penetrates through an assembling table 200, a threaded hole matched with the threaded rod 201 is formed in the assembling table 200, the assembling table 200 is located at the top of the inner side of the air conditioner outdoor unit 100 in an initial state, after the air conditioner outdoor unit 100 is idle for a period of time, the motor 202 is started to drive the threaded rod 201 to rotate, and then the assembling table 200 is driven to descend, so that floating dust on the radiating fins 120 is scraped by the cleaning brush 209;
as shown in fig. 6 to 8, an air pump (not shown) is disposed in the air conditioner external machine 100, the cleaning brush 209 includes a blowing pipe 211 for blowing air and an air suction pipe 210 sleeved outside the blowing pipe 211 for absorbing dust, the blowing pipe 211 is communicated to an output end of the air pump through an exhaust pipe 216, the air suction pipe 210 is communicated to an input end of the air pump through an air inlet pipe 215, an air suction channel is formed between the blowing pipe 211 and the air suction pipe 210, one end of the air suction channel is sealed relative to the swinging block 205, an air blowing cap 213 for guiding air direction is disposed at one end of the blowing pipe 211 far away from the swinging block 205, an air outlet 214 of the air blowing cap 213 faces the assembling table 200, the air blowing cap 213 is communicated with the blowing pipe 211, a plurality of bristles are disposed on a side wall of the air suction pipe 210 and provided with dust collection openings 212 distributed in a linear array, one end of the air inlet pipe 215 is provided with dust collection boxes (not shown) close to the air pump, the air pump is driven to descend along with the assembling table 200, and then the air pump is blown to the surface of the heat dissipation fins 120 through the blowing pipe 211, the air suction pipe is driven to blow air, and the floating dust is blown up, and the dust is sucked into the channel through the dust collection opening 212 on the air suction channel along with the air collection opening 212, and the air flow enters the air suction box and leaves in the dust collection boxes.
The outdoor unit 100 of the air conditioner is mostly installed on a building wall, no canopy is covered, rainwater can leak onto the radiating fins 120 in overcast and rainy days, dust can be coagulated together when water drops flow along the radiating fins 120, and after the water drops evaporate, the coagulated dust can be firmly adhered to the surfaces of the radiating fins 120, so that the dust is difficult to clean.
As shown in fig. 3 to 5, for this embodiment, the swinging component is configured to drive the cleaning brush 209 to transversely swing along with the descending process of the assembly table 200 to whip the heat dissipation fin 120, so as to improve the effect of scraping dust by the cleaning brush 209, the swinging component includes a plurality of swinging blocks 205 axially rotating on the assembly table 200 and a cross rod 206 driven to reciprocate to drive the swinging blocks 205 to rotate, the swinging blocks 205 are distributed along one side of the assembly table 200 towards the heat dissipation fin 120, the cleaning brush 209 is mounted on one side of the swinging blocks 205 towards the heat dissipation fin 120, a notch is formed on one side of the swinging blocks 205 relative to the heat dissipation fin 120, the notch is in a U shape with a transverse opening, a waist groove is formed in a side wall on an adjacent side of the notch, a cross rod 206 is arranged on the assembly table 200, a first limit rod 208 matched with the waist groove is arranged on the side wall of the cross rod 206, the cross rod 206 can be driven to axially swing by the cooperation of the first limit rod 208 and the waist groove, one end of the assembly table 200 is symmetrically provided with a guide post 203, a guide groove 204 extending along the moving direction of the assembly table 200 is formed on the side wall of one guide post 203, a guide groove 204 extending along the moving direction of the assembly table 200 is arranged on the side wall of the guide post 204, and the second limit rod 206 is matched with the second limit rod 206 is further driven to axially reciprocate along the second limit rod 206, and the second limit rod 206 is matched with the second limit rod 206 along the side of the guide rod, and the second limit rod is matched with the second limit rod 204 when the reciprocating rod is driven to reciprocate along the second limit rod 200, and the second limit rod is matched with the second limit rod 204.
When the heat dissipation fins 120 of the air conditioner external unit 100 are cleaned at present, most of the air conditioner external unit 100 is not detached, but ash is directly removed, but the existing cleaning equipment is difficult to clean the positions of the heat dissipation fins 120 on the back of the heat exchange tube 110, so that dust is deposited continuously at the positions, and the heat exchange efficiency is reduced.
At present, for improving the heat dissipation efficiency, most of the heat dissipation fins 120 are aluminum alloy fins, the cleaning brush 209 made of rubber is rubbed with the heat dissipation fins 120 continuously in the ash removal process, so that static electricity is carried on the surface of the cleaning brush 209, dust is adsorbed on the surface of the cleaning brush 209, meanwhile, the cleaning mechanism further comprises a static removal component, as shown in fig. 1 and 2, the static removal component comprises a conductive plate 300 arranged right below the heat dissipation fins 120, a grounded wire 301 is arranged on the side wall of the conductive plate 300, when the assembly table 200 moves to the lowest position, the cleaning brush 209 is abutted against the conductive plate 300, and charges carried by the cleaning brush are transferred away through the conductive plate 300 and the wire 301, so that dust adsorbed on the surface of the cleaning brush 209 falls off and is sucked into a dust collection box, and the dust removal effect is improved.
The above description is only of the preferred embodiments of the present application and is not intended to limit the present application, and various modifications and variations of the present application will be apparent to those skilled in the art, and it should be noted that: it will be apparent to those skilled in the art that various modifications and adaptations can be made without departing from the principles of the present application, and such modifications and adaptations are intended to be comprehended within the scope of the application.

Claims (7)

1. The utility model provides a cleaning device of heat pump heat exchanger fin (120), includes heat exchange tube (110) and with heat exchange tube (110) adaptation's fin (120), its characterized in that in the outer machine of air conditioner (100): the cleaning mechanism comprises an assembly table (200) and a driving assembly for driving the assembly table (200) to vertically lift, wherein the assembly table (200) is provided with a cleaning brush (209) for dust removal and a swinging assembly for driving the cleaning brush (209) to transversely swing;
the driving assembly comprises a motor (202) and a threaded rod (201) assembled at the output end of the motor (202), the threaded rod (201) vertically penetrates through the assembly table (200), and a screw hole matched with the threaded rod (201) is formed in the assembly table (200);
the swinging assembly comprises a swinging block (205) axially and rotatably arranged on the assembly table (200) and a cross rod (206) driven to reciprocate to drive the swinging block (205) to rotate, and the cleaning brush (209) is arranged on the swinging block (205).
2. A cleaning device for heat pump heat exchanger fins (120) according to claim 1, characterized in that: the cleaning brush is characterized in that the swinging block (205) is assembled towards one side of the radiating fin (120), the cleaning brush (209) comprises a blowing pipe (211) for blowing air and a suction pipe (210) sleeved outside the blowing pipe (211) for sucking dust, a suction channel is formed between the blowing pipe (211) and the suction pipe (210), one end of the suction channel, which is opposite to the swinging block (205), is sealed, a blowing cap (213) for guiding wind direction is arranged at one end, far away from the swinging block (205), of the blowing pipe (211), the blowing cap (213) is communicated with the blowing pipe (211), and dust suction openings (212) distributed in a linear array are formed in the side wall of the suction pipe (210).
3. A cleaning device for heat pump heat exchanger fins (120) according to claim 2, characterized in that: the air conditioner is characterized in that an air pump is arranged in the air conditioner outer unit (100), the blowing pipe (211) is communicated to the output end of the air pump through an exhaust pipe (216), the air suction pipe (210) is communicated to the input end of the air pump through an air inlet pipe (215), and a dust collection box is arranged at one end, close to the air pump, of the air inlet pipe (215).
4. A cleaning device for heat pump heat exchanger fins (120) according to claim 1, characterized in that: the cleaning brushes (209) are in one-to-one correspondence with the radiating fins (120) at intervals.
5. A cleaning device for heat pump heat exchanger fins (120) according to claim 1, characterized in that: the swinging block (205) is provided with a notch relative to one side of the radiating fin (120), a waist groove is formed in the side wall of the adjacent side of the notch, a cross rod (206) is arranged on the assembly table (200) penetrating through the notch, and a first limit rod (208) matched with the waist groove is arranged on the side wall of the cross rod (206).
6. A cleaning device for heat pump heat exchanger fins (120) according to claim 5, wherein: the assembly table (200) is symmetrically provided with guide posts (203) relative to one end of the threaded rod (201), guide grooves (204) extending in a snake shape are formed in the side walls of the guide posts (203), and second limiting rods (207) matched with the guide grooves (204) are arranged on the side walls of the cross rods (206).
7. A cleaning device for heat pump heat exchanger fins (120) according to claim 1, characterized in that: the cleaning mechanism further comprises a static eliminating assembly, the static eliminating assembly comprises a conducting plate (300) arranged right below the radiating fins (120), and a grounded conducting wire (301) is arranged on the side wall of the conducting plate (300).
CN202310903580.4A 2023-07-22 2023-07-22 Cleaning device for heat pump heat exchanger fin Pending CN116858018A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202310903580.4A CN116858018A (en) 2023-07-22 2023-07-22 Cleaning device for heat pump heat exchanger fin

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202310903580.4A CN116858018A (en) 2023-07-22 2023-07-22 Cleaning device for heat pump heat exchanger fin

Publications (1)

Publication Number Publication Date
CN116858018A true CN116858018A (en) 2023-10-10

Family

ID=88218944

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202310903580.4A Pending CN116858018A (en) 2023-07-22 2023-07-22 Cleaning device for heat pump heat exchanger fin

Country Status (1)

Country Link
CN (1) CN116858018A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN117663680A (en) * 2023-12-16 2024-03-08 江苏永诚装备科技有限公司 Ship natural gas liquefying device with precooling structure
CN117833821A (en) * 2024-01-15 2024-04-05 中能电科建设(广东)有限公司 Photovoltaic power plant cooling equipment

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN117663680A (en) * 2023-12-16 2024-03-08 江苏永诚装备科技有限公司 Ship natural gas liquefying device with precooling structure
CN117833821A (en) * 2024-01-15 2024-04-05 中能电科建设(广东)有限公司 Photovoltaic power plant cooling equipment

Similar Documents

Publication Publication Date Title
CN116858018A (en) Cleaning device for heat pump heat exchanger fin
CN108591089B (en) Exhaust fan
CN100416167C (en) Air conditioner
CN213208229U (en) Defrosting and dedusting device of air energy water heater
CN219716371U (en) Outdoor full-color LED display screen heat abstractor
CN108547801A (en) A kind of dedusting maintenance method of exhaust blower
CN112807866A (en) Air condition compressor with self-loopa deashing structure
CN210105407U (en) Communication base station with protection and dust removal functions
CN110504915A (en) A kind of solar panel cleaning apparatus for self
CN217963691U (en) Dustproof shell for automatic instrument
CN217235997U (en) Clean factory building energy-saving equipment in tall and big space based on EC fan uses
CN113745992B (en) Electrical switch cabinet with dustproof and antistatic functions
CN111206853A (en) Glass pushes away window new trend system
CN214958747U (en) Lithium battery charging and discharging exchange cabinet with good display effect
CN215502721U (en) Indoor dust extraction that uses of civil construction
CN214458774U (en) Cleaning device is used in oxford production
CN211613520U (en) IBC solar cell with cleaning function
CN210788653U (en) Steel wire surface dust removal device
CN114233034A (en) Intelligent building green curtain wall cleaning system and method
CN113207267A (en) Lifting type integrated computer server cabinet
CN220892461U (en) Ventilation and heat dissipation device for pump room
CN215864811U (en) Automatic cleaning type air cooler
CN218549217U (en) Photovoltaic wind power intelligent box monitoring device
CN215089527U (en) Electric cleaning machine
CN218184554U (en) A accurate ventilation spraying system of energy-saving pressure-fired for pig house

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination