CN115751682A - Air supply device of air conditioner - Google Patents

Air supply device of air conditioner Download PDF

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Publication number
CN115751682A
CN115751682A CN202211499126.9A CN202211499126A CN115751682A CN 115751682 A CN115751682 A CN 115751682A CN 202211499126 A CN202211499126 A CN 202211499126A CN 115751682 A CN115751682 A CN 115751682A
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CN
China
Prior art keywords
air supply
air
pipeline
air conditioner
dust removal
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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
CN202211499126.9A
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Chinese (zh)
Inventor
黄国涛
杨绪兵
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Zhuhai Daguang Purification Technology Co ltd
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Zhuhai Daguang Purification Technology 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.)
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Publication date
Application filed by Zhuhai Daguang Purification Technology Co ltd filed Critical Zhuhai Daguang Purification Technology Co ltd
Priority to CN202211499126.9A priority Critical patent/CN115751682A/en
Publication of CN115751682A publication Critical patent/CN115751682A/en
Pending legal-status Critical Current

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    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02BCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B30/00Energy efficient heating, ventilation or air conditioning [HVAC]
    • Y02B30/70Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating

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  • Filtering Of Dispersed Particles In Gases (AREA)

Abstract

The invention provides an air supply device of an air conditioner, which comprises an air supply device body, wherein the air supply device body comprises an air supply main pipeline, an air exhaust mechanism, a communicating component and a dust removal component, an air blower is embedded in the air supply main pipeline, one end of the air supply main pipeline is communicated with an air conditioning device part, the other end of the air supply main pipeline is provided with the dust removal component, a water storage chamber is arranged in the dust removal component, the outer side of the water storage chamber is connected with an air supply pipeline, the side edge of the air supply main pipeline is provided with a plurality of air supply branch pipelines, the air supply device of the air conditioner adsorbs filtered dust through the added water storage chamber, so that a large amount of dust is prevented from being adhered to the surface of a filter screen, the cleaning period of the filter screen is prolonged, when the air exhaust mechanism corresponding to the air supply branch pipelines is closed, airflow in the air supply main pipeline can be prevented from entering the air supply branch pipelines, and the utilization rate of energy is improved.

Description

Air supply device of air conditioner
Technical Field
The invention relates to the technical field of air conditioning, in particular to an air supply device of an air conditioner.
Background
In the inside of dustless workshop, generally can select installation central air conditioning to realize the regulation and control to inside temperature, consequently need use corresponding air conditioner air supply arrangement, air supply arrangement can carry the cold air or the heating installation that produce in the air conditioner along supply air duct, but among the prior art, because the area in workshop is generally great, need install a plurality of air outlets, when part air outlet does not use, can close this air outlet, but this air outlet still is in the connected state to the lateral conduit part between the supply air trunk line, consequently this section region still can carry out slow heat exchange with the inside temperature outside wall part, this process leads to the temperature to produce and runs off, certain energy has been wasted, on the other hand, to dustless car with inside, the requirement for air quality is high, conventional air supply arrangement only removes dust through the filter screen, can lead to the dust removal effect deterioration after using for a long time, need frequent cleaning the filter screen, human resources have been consumed, and follow-up use can reduce the efficiency of air supply.
Disclosure of Invention
Aiming at the defects in the prior art, the invention aims to provide an air supply device of an air conditioner, which aims to solve the problems in the background art.
In order to achieve the purpose, the invention is realized by the following technical scheme: the utility model provides an air conditioner air supply arrangement, includes the air supply arrangement body, the air supply arrangement body includes air supply trunk line, exhaust mechanism, intercommunication subassembly and dust removal subassembly, the inside of air supply trunk line is inlayed and is equipped with the air-blower, the one end and the air conditioning equipment part of air supply trunk line are linked together, the dust removal subassembly is installed to the other end of air supply trunk line, the inside of dust removal subassembly is provided with the reservoir chamber, the outside of reservoir chamber is connected with water supply pipeline, a plurality of air supply branch pipelines, every are installed to air supply trunk line's side independent exhaust mechanism is all installed to air supply branch pipeline's end, the internally mounted of exhaust mechanism has the filter screen, the bottom of filter screen is provided with dust collecting bin, water supply pipeline's end is linked together with the exhaust mechanism of tip, the intercommunication subassembly is installed to air supply branch pipeline's the other end.
Furthermore, exhaust mechanism includes frame and dust collection bin, the top of frame and the terminal fixed connection of air supply branch pipeline, the side in dust collection bin is connected with the anti-overflow pipeline, the dust removal subassembly passes through the pipeline of sending water and aligns with the inside of anti-overflow pipeline.
Further, the side of frame is provided with the air exit, the whole cylindric structure that is of filter screen, and the top of filter screen and the inner wall fixed connection of frame, the inside of dust collection bin is provided with the guide plate.
Furthermore, the middle of the guide plate is upwards bulged, a gap is formed between the side edge of the guide plate and the inner wall of the dust collection bin, a communicating pipeline is arranged at the bottom of the dust collection bin, a dust removal pipeline is arranged at the bottom of the communicating pipeline, and the bottom of each air exhaust mechanism is connected through the dust removal pipeline.
Further, the dust removal component includes reservoir chamber and inlet channel, the inside of reservoir chamber is provided with the cavity, and the outside of reservoir chamber is connected with the inlet channel, the end of inlet channel is provided with the water inlet, and the water inlet penetrates in the cavity of reservoir chamber inside.
Furthermore, a ball float valve is installed at the top of the water inlet, the water feeding pipeline is communicated with the bottom of the water storage chamber, and the inside of the water storage chamber is communicated with the inside of the air supply main pipeline.
Further, the inside of intercommunication subassembly is provided with the support, the water conservancy diversion fan is installed to the centre of support, the junction of intercommunication subassembly and air supply trunk line is provided with the baffle, one side of baffle is provided with closing mechanism.
Furthermore, a communication port is formed in the middle of the partition plate, the diversion fan blows air to one side of the exhaust mechanism from one side of the air supply main pipeline, and the partition plate and the communication port are both of a circular structure integrally.
Further, the closing mechanism includes guide bar and seal membrane, the guide bar is installed to the side of baffle, the top of guide bar is provided with limit baffle, the surface cover of guide bar is equipped with the fender ring.
Further, the sealing membrane has been laid to the inboard of keeping off the ring, the side of keeping off the ring is installed with the form of symmetry to the guide bar, keep off the ring and slide along the guide bar, the subsides are equipped with the sealing washer on the baffle of intercommunication mouth side.
The invention has the beneficial effects that: the invention relates to an air supply device of an air conditioner, which comprises an air supply device body, wherein the air supply device body comprises an air supply main pipeline, an air supply branch pipeline, an air exhaust mechanism, a communicating component, a dust removal component, a frame, an air outlet, a filter screen, a dust collection bin, a guide plate, a communicating pipeline, a dust removal pipeline, an anti-overflow pipeline, a water storage chamber, a water inlet pipeline, a water inlet, a ball float valve, a water supply pipeline, an electromagnetic valve, a guide fan, a partition plate, a communicating port, a sealing mechanism, a sealing ring, a guide rod, a limiting baffle, a baffle ring, a sealing membrane, a support and an air blower.
1. This air conditioner air supply arrangement all adsorbs filterable dust through the water storage room that increases in the bottom of every exhaust mechanism to reduce a large amount of adhesions of dust on the surface of filter screen, prolonged the clean cycle to the filter screen, also can improve dirt-proof effect simultaneously, further reduced the destruction with inside air circumstance to dustless car.
2. This air conditioner air supply arrangement all is connected through independent intercommunication subassembly and air supply trunk line part at the rear end of every air supply lateral duct, consequently when the exhaust mechanism that this air supply lateral duct corresponds closes, can avoid the inside air current of air supply trunk line to get into the inside of air supply lateral duct, has improved the utilization ratio to the energy.
3. The dust removal assembly is arranged at the tail end of the main air supply pipeline of the air conditioner air supply device and communicated with the inside of each air exhaust mechanism, so that the inside adsorption water is automatically replaced, and the follow-up continuous and efficient dust removal function is ensured.
Drawings
FIG. 1 is a schematic structural diagram of an external shape of an air supply device of an air conditioner according to the present invention;
FIG. 2 is a schematic structural diagram of an air exhaust mechanism of an air supply device of an air conditioner according to the present invention;
FIG. 3 is a schematic structural diagram of a dust removal assembly of an air supply device of an air conditioner according to the present invention;
FIG. 4 is a schematic structural view of a communicating component of an air supply device of an air conditioner according to the present invention;
FIG. 5 is a schematic structural view of a sealing mechanism of an air supply device of an air conditioner according to the present invention;
in the figure: 1. a main air supply pipeline; 2. a branch air supply duct; 3. an air exhaust mechanism; 4. a communicating component; 5. a dust removal assembly; 6. a frame; 70. an air outlet; 8. filtering with a screen; 9. a dust collection bin; 10. a baffle; 11. a communicating pipeline; 12. a dust removal pipeline; 13. an anti-overflow pipe; 14. a water storage chamber; 15. a water inlet pipe; 16. a water inlet; 17. a float valve; 18. a water supply pipeline; 19. an electromagnetic valve; 20. a flow guiding fan; 21. a partition plate; 22. a communication port; 23. a closure mechanism; 24. a seal ring; 25. a guide rod; 26. a limit baffle; 27. a baffle ring; 28. a sealing film; 29. a support; 30. a blower.
Detailed Description
In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further explained by combining the specific embodiments.
Referring to fig. 1 to 5, the present invention provides a technical solution: the utility model provides an air conditioner air supply arrangement, includes the air supply arrangement body, the air supply arrangement body includes main air supply pipeline 1, air exhaust mechanism 3, intercommunication subassembly 4 and dust removal subassembly 5, main air supply pipeline 1's inside is inlayed and is equipped with air-blower 30, main air supply pipeline 1's one end is linked together with the air conditioning equipment part, dust removal subassembly 5 is installed to main air supply pipeline 1's the other end, the inside of dust removal subassembly 5 is provided with reservoir 14, reservoir 14's the outside is connected with water supply pipeline 18, a plurality of air supply branch pipelines 2, every are installed to main air supply pipeline 1's side air supply pipeline 2's end independent air exhaust mechanism 3 all is installed to air supply branch pipeline 2's end, the internally mounted of air exhaust mechanism 3 has filter screen 8, filter screen 8's bottom is provided with dust collecting bin 9, water supply pipeline 18's end is linked together with the mechanism 3 of tip, air supply pipeline 2's the other end of airing exhaust communicates subassembly 4, and this air conditioner air supply arrangement uses the one end of air supply pipeline 1 and air conditioning equipment part to communicate to blow off the air current that air conditioner department blew to the rear end with the help of air supply pipeline 30, realizes the effect of air supply to be provided with a plurality of air supply pipeline 1's side, and to the branch pipelines 2, and to the branch pipelines in the air supply pipeline 3 different air supply pipeline in the air supply pipeline 3 the workshop the internal portion, the branch pipeline of utilizing the internal portion of the branch pipeline 3 of air supply pipeline, the branch pipeline, the internal portion of the transport mechanism is to utilize the branch to carry the internal portion to the branch pipeline to utilize the internal portion of the branch to utilize the branch to carry the internal portion of the branch to adjust and regulate and control of the branch to the branch pipeline, and control mechanism, the branch pipeline 3, the branch pipeline, the internal portion of the branch pipeline.
In this embodiment, the exhaust mechanism 3 includes a frame 6 and a dust collecting bin 9, the top of the frame 6 is fixedly connected with the tail end of the branch air supply pipeline 2, an anti-overflow pipeline 13 is connected with the side edge of the dust collecting bin 9, the dust removing component 5 is aligned with the inner part of the anti-overflow pipeline 13 through a water feeding pipeline 18, an air outlet 7 is arranged on the side edge of the frame 6, the filter screen 8 is integrally in a cylindrical structure, the top of the filter screen 8 is fixedly connected with the inner wall of the frame 6, a guide plate 10 is arranged inside the dust collection bin 9, the middle of the guide plate 10 is raised upwards, and a gap is arranged between the side edge of the guide plate 10 and the inner wall of the dust collection bin 9, the bottom of the dust collection bin 9 is provided with a communicating pipeline 11, the bottom of the communicating pipeline 11 is provided with a dust removing pipeline 12, the bottom of each air exhaust mechanism 3 is connected through the dust removing pipeline 12, the filtered dust is adsorbed at the bottom of each exhaust mechanism 3 through the added water storage chamber 14, thereby reducing the adhesion of a large amount of dust on the surface of the filter screen 8, prolonging the cleaning period of the filter screen 8, meanwhile, the dust-proof effect can be improved, the damage to the internal air environment of the dust-free vehicle is further reduced, and particularly, after the air flow passes through the communicating component 4 from the inside of the air supply main pipeline 1, that is, the air is fed into the exhaust mechanism 3 at the end along the branch air supply duct 2, and in the exhaust mechanism 3, the dust can be shielded by the filter screen 8 at the side, the air flow can be discharged from the air outlet 7 at the side after passing through the filter screen 8, the filtered dust is blown along with the subsequent air flow to be scattered until the dust is contacted with the water stored in the dust collecting bin 9, is absorbed by water, so that the dust collection effect can be realized, and the subsequent long-time stirring by airflow is avoided.
In this embodiment, the dust removing assembly 5 includes a water storage chamber 14 and a water inlet pipe 15, a cavity is provided inside the water storage chamber 14, the water inlet pipe 15 is connected to the outside of the water storage chamber 14, a water inlet 16 is provided at the end of the water inlet pipe 15, the water inlet 16 penetrates into the cavity inside the water storage chamber 14, a ball float valve 17 is installed at the top of the water inlet 16, a water supply pipe 18 is connected to the bottom of the water storage chamber 14, the inside of the water storage chamber 14 is connected to the inside of the air supply main pipe 1, the dust removing assembly 5 is provided at the end of the air supply main pipe 1, the dust removing assembly 5 is connected to the inside of each air exhaust mechanism 3, so that the dust collecting chamber 9 inside the air exhaust mechanism 3 can be controlled by controlling the opening of a plurality of valves to remotely control the dust collecting chamber 9, the internal adsorption water can be automatically replaced, the subsequent continuous and efficient dust removing function can be realized, meanwhile, the situation that the dust backflow is caused when the corresponding communicating assembly 4 is closed can be avoided, specifically, when the concentration of impurities inside the chamber 9 inside each air exhaust mechanism 3 is too high, the water can be discharged into the dust collecting chamber 9, the dust collecting chamber can be discharged from the water collecting chamber 19, and the water collecting chamber can be automatically closed, and the water flow into the water collecting chamber 19, the water collecting chamber can be discharged from the water collecting chamber 9, the water collecting chamber can be automatically closed, and the water replenishing valve can be discharged from the water collecting chamber 12, the water collecting chamber 19, the water collecting chamber can be automatically closed, and the water replenishing valve can be automatically closed, and the overflow preventing electromagnetic valve can be automatically closed, wherein the float valve 17 and the electromagnetic valve 19 are both the existing mature technology.
This embodiment, the inside of intercommunication subassembly 4 is provided with support 29, water conservancy diversion fan 20 is installed to the centre of support 29, intercommunication subassembly 4 is provided with baffle 21 with the junction of air supply trunk line 1, one side of baffle 21 is provided with closing mechanism 23, intercommunication mouth 22 has been seted up to the centre of baffle 21, water conservancy diversion fan 20 blows to the one side at air exhaust mechanism 3 place from one side of air supply trunk line 1, baffle 21 and intercommunication mouth 22 are whole all to be circular structure, all are connected with air supply trunk line 1 part through independent intercommunication subassembly 4 at the rear end of every air supply branch pipeline 2, consequently when air exhaust mechanism 3 that this air supply branch pipeline 2 corresponds closes, can avoid the inside air current of air supply trunk line 1 to enter into the inside of air supply branch pipeline 2 to prevent the inside heat exchange that produces of this air supply branch pipeline 2 that stops using, ensure that the air current can all enter into open air exhaust mechanism 3 department, improved the utilization ratio to the energy.
This embodiment, closing mechanism 23 includes guide bar 25 and seal membrane 28, guide bar 25 is installed to the side of baffle 21, the top of guide bar 25 is provided with limit baffle 26, the surface cover of guide bar 25 is equipped with and keeps off ring 27, seal membrane 28 has been laid to the inboard of keeping off ring 27, the side at fender ring 27 is installed with the form of symmetry to guide bar 25, keep off ring 27 and slide along guide bar 25, the baffle 21 facing of intercommunication mouth 22 side is equipped with sealing washer 24, and is concrete, when opening corresponding exhaust mechanism 3, through starting water conservancy diversion fan 20 forward rotation, utilizes the air current to stimulate seal membrane 28 to the direction of water conservancy diversion fan 20, can open the intercommunication with air supply main pipe 1 and air supply branch pipeline 2, realizes opening the effect to this exhaust mechanism 3, when out of service, makes water conservancy diversion fan 20 reversal, blows seal membrane 28 backward, can utilize water conservancy diversion ring 27 and seal membrane 28 to press on sealing washer 24, realizes the shutoff closure to intercommunication mouth 22.
While there have been shown and described what are at present considered the fundamental principles and essential features of the invention and its advantages, it will be apparent to those skilled in the art that the invention is not limited to the details of the foregoing exemplary embodiments, but is capable of other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present specification describes embodiments, not every embodiment includes only a single embodiment, and such description is for clarity purposes only, and it is to be understood that all embodiments may be combined as appropriate by one of ordinary skill in the art to form other embodiments as will be apparent to those of skill in the art from the description herein.

Claims (10)

1. The utility model provides an air conditioner air supply arrangement, includes the air supply arrangement body, its characterized in that: the utility model discloses an air supply device, including air supply main pipe (1), exhaust mechanism (3), intercommunication subassembly (4) and dust removal subassembly (5), air supply main pipe (1) inside is inlayed and is equipped with air-blower (30), the one end and the air conditioning equipment part of air supply main pipe (1) are linked together, dust removal subassembly (5) are installed to the other end of air supply main pipe (1), the inside of dust removal subassembly (5) is provided with reservoir (14), the outside of reservoir (14) is connected with water supply pipeline (18), a plurality of branch air supply pipelines (2), every are installed to the side of air supply main pipe (1) independent exhaust mechanism (3) are all installed to the end of air supply branch pipeline (2), the internally mounted of mechanism of airing exhaust (3) has filter screen (8), the bottom of filter screen (8) is provided with dust collection bin (9), the end of water supply pipeline (18) is linked together with the mechanism of airing exhaust (3) of tip, intercommunication subassembly (4) are installed to the other end of air supply branch pipeline (2).
2. An air supply arrangement for an air conditioner according to claim 1, further comprising: exhaust mechanism (3) are including frame (6) and dust collection bin (9), the top of frame (6) and the terminal fixed connection of air supply lateral conduit (2), the side in dust collection bin (9) is connected with anti-overflow pipeline (13), dust removal component (5) are aligned with the inside of anti-overflow pipeline (13) through water supply pipeline (18), the surface mounting of water supply pipeline (18) has solenoid valve (19).
3. An air supply arrangement for an air conditioner according to claim 2, wherein: the side of the frame (6) is provided with an air outlet (7), the filter screen (8) is integrally of a cylindrical structure, the top of the filter screen (8) is fixedly connected with the inner wall of the frame (6), and a guide plate (10) is arranged inside the dust collection bin (9).
4. An air supply arrangement for an air conditioner according to claim 3, wherein: the middle of the guide plate (10) is raised upwards, a gap is formed between the side edge of the guide plate (10) and the inner wall of the dust collection bin (9), a communication pipeline (11) is arranged at the bottom of the dust collection bin (9), a dust removal pipeline (12) is arranged at the bottom of the communication pipeline (11), and the bottom of each air exhaust mechanism (3) is connected through the dust removal pipeline (12).
5. An air supply arrangement for an air conditioner according to claim 2, further comprising: dust removal subassembly (5) include reservoir chamber (14) and inlet channel (15), the inside of reservoir chamber (14) is provided with the cavity, and the outside of reservoir chamber (14) is connected with inlet channel (15), the end of inlet channel (15) is provided with water inlet (16), and water inlet (16) penetrate in the cavity of reservoir chamber (14) inboard.
6. An air supply arrangement for an air conditioner according to claim 5, wherein: the top of water inlet (16) is installed ball-cock assembly (17), water supply pipeline (18) are linked together with the bottom position of reservoir chamber (14), the inside of reservoir chamber (14) is linked together with the inside of air supply trunk line (1).
7. An air supply arrangement for an air conditioner according to claim 1, further comprising: the utility model discloses a wind-guiding assembly, including intercommunication subassembly (4), intercommunication subassembly (4) is provided with support (29), water conservancy diversion fan (20) are installed to the centre of support (29), the junction of intercommunication subassembly (4) and air supply trunk line (1) is provided with baffle (21), one side of baffle (21) is provided with closing mechanism (23).
8. An air supply arrangement for an air conditioner according to claim 7, wherein: the middle of the partition plate (21) is provided with a communication port (22), the diversion fan (20) blows air to one side where the air exhaust mechanism (3) is located from one side of the air supply main pipeline (1), and the partition plate (21) and the communication port (22) are both of a circular structure integrally.
9. An air supply arrangement for an air conditioner according to claim 7, wherein: closing mechanism (23) include guide bar (25) and seal membrane (28), guide bar (25) are installed to the side of baffle (21), the top of guide bar (25) is provided with limit baffle (26), the surface cover of guide bar (25) is equipped with fender ring (27).
10. An air supply arrangement for an air conditioner according to claim 9, further comprising: seal membrane (28) have been laid to the inboard of fender ring (27), the side of keeping off ring (27) is installed with the form of symmetry in guide bar (25), keep off ring (27) and slide along guide bar (25), the subsides are equipped with sealing washer (24) on baffle (21) of intercommunication mouth (22) side.
CN202211499126.9A 2022-11-28 2022-11-28 Air supply device of air conditioner Pending CN115751682A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202211499126.9A CN115751682A (en) 2022-11-28 2022-11-28 Air supply device of air conditioner

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202211499126.9A CN115751682A (en) 2022-11-28 2022-11-28 Air supply device of air conditioner

Publications (1)

Publication Number Publication Date
CN115751682A true CN115751682A (en) 2023-03-07

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CN202211499126.9A Pending CN115751682A (en) 2022-11-28 2022-11-28 Air supply device of air conditioner

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN117073968A (en) * 2023-08-16 2023-11-17 中广核工程有限公司 Door opening and closing induced airflow simulation device and door opening and closing induced airflow measurement method
CN117732163A (en) * 2024-02-21 2024-03-22 德州文岭通风设备有限公司 Dust filter for ventilation of civil air defense

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN117073968A (en) * 2023-08-16 2023-11-17 中广核工程有限公司 Door opening and closing induced airflow simulation device and door opening and closing induced airflow measurement method
CN117073968B (en) * 2023-08-16 2024-06-21 中广核工程有限公司 Door opening and closing induced airflow simulation device and door opening and closing induced airflow measurement method
CN117732163A (en) * 2024-02-21 2024-03-22 德州文岭通风设备有限公司 Dust filter for ventilation of civil air defense
CN117732163B (en) * 2024-02-21 2024-05-03 德州文岭通风设备有限公司 Dust filter for ventilation of civil air defense

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