CN215951714U - Low-resistance filtering air return inlet - Google Patents
Low-resistance filtering air return inlet Download PDFInfo
- Publication number
- CN215951714U CN215951714U CN202122408646.1U CN202122408646U CN215951714U CN 215951714 U CN215951714 U CN 215951714U CN 202122408646 U CN202122408646 U CN 202122408646U CN 215951714 U CN215951714 U CN 215951714U
- Authority
- CN
- China
- Prior art keywords
- return air
- air inlet
- filter
- return
- box body
- 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.)
- Active
Links
Images
Landscapes
- Filtering Of Dispersed Particles In Gases (AREA)
Abstract
The utility model belongs to the technical field of the technique of air conditioner return air inlet and specifically relates to a low resistance filters return air inlet is related to, including the return air inlet box, one side that the return air inlet box is close to the return air pipe is provided with the tuber pipe interface, is provided with filter element group spare in the return air inlet box, and filter element group spare includes coarse filter and high efficiency filter, and coarse filter is located high efficiency filter and is close to indoor one side. This application can reduce the windage of filtering the return air inlet to reduce the influence of installing filtration return air inlet additional to former return air pipe return air volume.
Description
Technical Field
The application relates to the technical field of air conditioner air return inlets, in particular to a low-resistance filtering air return inlet.
Background
In some occasions with intensive personnel and pollution risks, such as hospitals, wards, meeting rooms, markets, restaurants, hotels and the like, the air filtering capacity of the air conditioner is not considered too much at the beginning of design, and the filtering capacity is low. After the filter unit is put into use, due to the improvement of the requirement on the filtering efficiency, the filter unit in the original design can not meet the new filtering requirement, and a filtering return air inlet with stronger filtering capacity needs to be additionally arranged so as to meet the new filtering requirement. The additionally installed filtering air return inlet is positioned between the air return pipe and the suspended ceiling.
In view of the above related technologies, the inventor believes that the additionally installed filtration air return opening is often provided with a high efficiency filter to achieve the required high efficiency filtration, but the high efficiency filter has a large wind resistance, which easily affects the wind volume of the air return opening, and the filtration air return opening has a defect of large wind resistance.
SUMMERY OF THE UTILITY MODEL
In order to reduce the windage of filtering the return air inlet to reduce the influence of the filtration return air inlet of installing additional to former return air pipe return air volume, this application provides a low resistance filters return air inlet.
The application provides a low resistance filters return air inlet adopts following technical scheme:
the low-resistance filtering return air inlet comprises a return air inlet box body, wherein an air pipe joint is arranged on one side, close to a return air pipe, of the return air inlet box body, a filter element assembly is arranged in the return air inlet box body, the filter element assembly comprises a coarse filter and a high-efficiency filter, and the coarse filter is located on one side, close to a room, of the high-efficiency filter.
Through adopting above-mentioned technical scheme, coarse filter's windage is lower, and certain filtering capacity has, can filter some great pollutants of volume, share some filtration pressure for high efficiency filter, make high efficiency filter can reduce thickness, in order to realize the reduction of whole windage, coarse filter and high efficiency filter's integrated design, the windage and the filtering capacity to filtering return air inlet have been done the balance, when reaching required filtration efficiency, the windage of filtering return air inlet has been reduced, thereby the influence of the filtration return air inlet of installing additional to the return air pipe amount of wind has been reduced.
Preferably, coarse filter with high efficiency filter's inside all sets up to no baffle filter core structure, just high efficiency filter is made by the glass fiber filter media of low resistance.
By adopting the technical scheme, the total wind resistance of the filtering return air inlet is reduced by the coarse filter and the partition-plate-free filter element structure inside the high-efficiency filter, and the total wind resistance of the filtering return air inlet is further reduced by the high-efficiency filter made of the low-resistance glass fiber filter material.
Preferably, an internal sealing element is arranged between the high-efficiency filter and an opening of the air pipe connector, and the same internal sealing element is arranged between the high-efficiency filter and the coarse-efficiency filter.
Through adopting above-mentioned technical scheme, inside sealing member has improved the inside leakproofness of filtration return air inlet for indoor air all need loop through coarse filter and high efficiency filter, just can get into the return air hose, has reduced the inside gas leakage of filtration return air inlet.
Preferably, a plurality of fixing assemblies are arranged on the inner wall of the air return port box body and distributed along the circumferential direction of the air return port box body, each fixing assembly comprises an installation seat, an installation rod parallel to the axis of the air return port box body is arranged on each installation seat, a presser foot is arranged at one end, close to the indoor, of each installation rod, and the presser foot is clamped at the edge of the coarse filter.
Through adopting above-mentioned technical scheme, the presser foot joint on the fixed subassembly is in coarse filter's edge for coarse filter supports tightly in high efficiency filter, and high efficiency filter supports tightly in the tuber pipe interface, in order to realize the firm installation of filter element group spare in the return air inlet box.
Preferably, the presser foot is rotatably connected to the mounting rod, and one side of the return air inlet box body close to the room is detachably connected with a return air screen plate.
Through adopting above-mentioned technical scheme, presser foot pivoted connected mode and return air otter board detachable mounting means for the staff can change coarse filter and high efficiency filter in the return air inlet box conveniently.
Preferably, one end of the mounting seat, which is far away from the inner wall of the air return port box body, abuts against the high-efficiency filter.
Through adopting above-mentioned technical scheme, the mount pad has spacing effect to high efficiency filter, has restricted high efficiency filter towards the removal of week side, has improved the installation stability of high efficiency filter in the return air inlet box.
Preferably, one side of the presser foot close to the coarse filter is provided with anti-slip teeth.
Through adopting above-mentioned technical scheme, the antiskid tooth has increased the coefficient of friction between presser foot and coarse filter, has improved the frictional force that coarse filter received when inclining towards week to the installation stability of coarse filter in the return air inlet box has been improved.
Preferably, the return air inlet box is close to indoor opening and extends towards week side bending and forming spacing hem, spacing hem is kept away from indoor one side and has been seted up the seal groove, be provided with external seal spare in the seal groove, external seal spare's thickness is greater than the degree of depth of seal groove, external seal spare supports tightly in the furred ceiling.
Through adopting above-mentioned technical scheme, spacing hem makes return air inlet box can butt in the furred ceiling, the installation stability of return air inlet box on the furred ceiling has been improved, the leakproofness of return air inlet box with furred ceiling butt department has been improved in setting up of external sealing member, thereby effectively reduced the gas leakage of return air inlet box opening week side, the thickness of external sealing member is greater than the degree of depth of seal groove, make external sealing member be in the extruded state at the during operation, the passive deformation of external sealing member is with the small slit of shutoff furred ceiling edge, thereby the leakproofness of return air inlet box with furred ceiling butt department has further been increaseed.
Preferably, a lifting lug is arranged at one end, far away from the indoor, of the air return port box body, and the lifting lug is located on an outer side arm of the air return port box body.
Through adopting above-mentioned technical scheme, the lug is convenient for the staff will filter the return air inlet and hoist and mount on the ceiling, is favorable to filtering the installation of return air inlet on the ceiling.
In summary, the present application includes at least one of the following beneficial technical effects:
1. the combined design of the coarse filter and the high-efficiency filter balances the air resistance and the filtering capacity of the filtering return air inlet, achieves the required filtering efficiency and reduces the air resistance of the filtering return air inlet, thereby reducing the influence of the additionally arranged filtering return air inlet on the air volume of the return air pipe;
2. the total wind resistance of the filtering return air inlet is reduced by the aid of the partition-free filter element structures in the coarse filter and the high-efficiency filter, and the total wind resistance of the filtering return air inlet is further reduced by the high-efficiency filter made of the low-resistance glass fiber filter material;
3. the internal sealing element and the external sealing element both improve the sealing performance of the filtering return air inlet and reduce the gas leakage at the filtering return air inlet.
Drawings
FIG. 1 is a schematic diagram of the overall structure of an embodiment of the present application;
FIG. 2 is a cross-sectional view of an embodiment of the present application;
FIG. 3 is an enlarged schematic view at A in FIG. 2;
fig. 4 is a sectional view of the fixing member in the embodiment of the present application, showing the structure of the fixing member.
Reference numerals: 0. a suspended ceiling; 1. a return air inlet box body; 11. an air pipe connector; 12. lifting lugs; 13. limiting and folding edges; 131. a sealing groove; 14. an outer seal; 15. a return air net plate; 151. air return holes; 2. a filter element assembly; 21. a coarse filter; 22. a high efficiency filter; 23. an inner seal; 3. a fixing assembly; 31. a mounting seat; 311. installing a folded edge; 312. installing a sleeve; 32. mounting screws; 33. a presser foot; 331. anti-slip teeth; 34. and (5) tightening the nut.
Detailed Description
The present application is described in further detail below with reference to figures 1-4.
The embodiment of the application discloses a filter return air inlet.
Referring to fig. 1 and 2, the filtering return air inlet comprises a return air inlet box body 1, one end of the return air inlet box body 1 is communicated to a return air pipe, and the other end of the return air inlet box body 1 is communicated to the indoor space. Be provided with filter element group spare 2 in the return air inlet box 1, filter element group spare 2 is used for purifying from the air of indoor circulation to the return air duct in, still is provided with the fixed subassembly 3 that is used for fixed filter element group spare 2 in the return air inlet box 1.
The whole air return inlet box body 1 is arranged in a square barrel shape, and the axis of the air return inlet box body 1 is arranged vertically. The top of return air inlet box 1 is provided with square tube shape's tuber pipe interface 11, and tuber pipe interface 11 sets up with return air inlet box 1 is coaxial, and the inner chamber cross sectional area of tuber pipe interface 11 is less than the inner chamber cross sectional area of return air inlet box 1.
Referring to fig. 1 and 2, a lifting lug 12 is arranged at one end of the return air inlet box body 1 close to the air pipe connector 11, in the embodiment of the present application, four lifting lugs 12 are arranged, and the four lifting lugs 12 are located on the periphery side of the air pipe connector 11 and welded at four corners of the top end of the return air inlet box body 1.
Referring to fig. 2 and 3, the bottom opening of the return air inlet box 1 extends towards the circumferential side to form a limiting flange 13, a sealing groove 131 is formed in one side of the limiting flange 13 away from the indoor space, an external sealing element 14 is adhered in the sealing groove 131, the thickness of the external sealing element 14 is greater than the depth of the sealing groove 131, that is, the top end of the external sealing element 14 extends out of the opening of the sealing groove 131. The top butt of external seal 14 in furred ceiling 0 to realize the sealed of return air inlet box 1 bottom week side, external seal 14 is in the state that receives the extrusion at the during operation, can passive deformation in order to seal the small gap on 0 surfaces of furred ceiling.
Referring to fig. 1 and 3, the bottom level of return air inlet box 1 is provided with return air otter board 15, and return air otter board 15 sets up to square plate, and the side of return air otter board 15 passes through screw fixed connection in spacing hem 13 to realize the demountable installation of return air otter board 15 on return air inlet box 1. The air return net plate 15 is provided with a plurality of air return holes 151, and the air return holes 151 are distributed in a rectangular array.
Referring to fig. 2, the filter element assembly 2 is located inside the return air inlet box 1, and includes a coarse filter 21 and a high efficiency filter 22, the coarse filter 21 and the high efficiency filter 22 are both disposed in a rectangular shape, and the coarse filter 21 is located below the high efficiency filter 22. The top periphery of coarse filter 21 all adheres to there is inside seal 23 with high efficiency filter 22's top periphery, and inside seal 23 is whole to be square setting, and the inside seal 23 on coarse filter 21 top supports tightly in the opening of tuber pipe interface 11 bottom, and the inside seal 23 on coarse filter 21 top supports tightly in high efficiency filter 22's bottom.
Referring to fig. 2, the indoor air passes through the coarse filter 21 and the high efficiency filter 22 in order and is introduced into the return duct. The wind resistance of the coarse filter 21 is low, and the coarse filter has certain filtering capacity, can filter some pollutants with large diameters in the air, shares a part of filtering pressure for the high-efficiency filter 22, enables the high-efficiency filter 22 to reduce the thickness, and reduces the whole wind resistance of the filtering air return opening. The combined design of the coarse filter 21 and the high-efficiency filter 22 balances the air resistance and the filtering capacity of the filtering return air inlet, and reduces the air resistance of the filtering return air inlet while achieving the required filtering efficiency, thereby reducing the influence of the additionally arranged filtering return air inlet on the air volume of the return air pipe.
The arrangement of the internal sealing element 23 improves the sealing performance in the return air inlet box body 1, reduces the gas leakage on the peripheral sides of the coarse filter 21 and the high-efficiency filter 22, and therefore improves the cleanliness of the air circulating to the return air pipe.
The fixed components 3 are arranged to be a plurality of, in the embodiment of the present application, the fixed components 3 are arranged to be eight, the eight fixed components 3 are located at the same height, and are uniformly distributed along the peripheral side of the inner cavity of the return air inlet box body 1, and two fixed components 3 are respectively arranged on four side walls of the return air inlet box body 1.
Referring to fig. 4, the fixing assembly 3 includes a mounting seat 31, the mounting seat 31 is integrally U-shaped and is bent and extended to form a mounting flange 311, and the mounting flange 311 is fixedly connected to a side plate of the return air inlet box 1 by screws, so as to realize the stable installation of the mounting seat 31 in the inner cavity of the return air inlet box 1. One end of the mounting seat 31 far away from the side wall of the air return opening box body 1 is abutted to the high-efficiency filter 22, so that the high-efficiency filter 22 is limited, and the deviation of the high-efficiency filter 22 towards the peripheral side is limited.
Referring to fig. 4, a mounting sleeve 312 is vertically disposed in the mounting seat 31, and the mounting sleeve 312 is welded to a bottom surface of a top plate of the mounting seat 31. The mounting sleeve 312 is screwed with a mounting screw 32, the tip of the mounting screw 32 abuts against the upper surface of the mounting seat 31, and the mounting screw 32 penetrates the mounting seat 31. The mounting screw 32 is sleeved with a pressure foot 33, the pressure foot 33 is positioned below the mounting seat 31, and the pressure foot 33 can rotate around the mounting screw 32 and is buckled at the edge of the coarse filter 21 so as to limit the filter element assembly 2 in the vertical direction. The bottom end of the mounting screw 32 is connected with a fastening nut 34 in a threaded manner, and the fastening nut 34 has a limiting effect on the presser foot 33, so that the process that the presser foot 33 slides downwards along the mounting screw 32 and is separated is prevented.
The anti-skidding teeth 331 are integrally arranged on one side, close to the coarse filter 21, of the presser foot 33, the anti-skidding teeth 331 increase the friction coefficient between the presser foot 33 and the coarse filter 21, further increase the maximum static friction force between the presser foot 33 and the coarse filter, and improve the stability of the filter element assembly 2 in the return air inlet box body 1.
The implementation principle of the low-resistance filtering air return inlet in the embodiment of the application is as follows:
the wind resistance of the coarse filter 21 is low, and the coarse filter has certain filtering capacity, can filter some pollutants with large diameters, shares a part of filtering pressure for the high-efficiency filter 22, and can reduce the thickness of the high-efficiency filter 22, so that the wind resistance of the high-efficiency filter 22 is reduced. The combined design of the coarse filter 21 and the high-efficiency filter 22 effectively reduces the whole wind resistance and reduces the influence of the additionally arranged filtering air return inlet on the air quantity of the air return pipe while ensuring that the filtering air return inlet can reach the required filtering efficiency.
The rotatable design of the presser foot 33 and the detachable design of the return air screen 15 allow the filter element assembly 2 to be easily replaced by a worker. When changing the filter core, pull down return air otter board 15, all turn to one side with presser foot 33, unload coarse filter 21 and high efficiency filter 22, pack into new high efficiency filter 22 and coarse filter 21 in proper order, upwards light pressure coarse filter 21, inside sealing member 23 receives extrusion deformation, coarse filter 21 one section distance of rebound, turn to the below of coarse filter 21 with presser foot 33 afterwards, loosen coarse filter 21, under the elastic force effect of inside sealing member 23, coarse filter 21 offsets tightly with presser foot 33, in order to realize the firm installation of filter element group spare 2 in return air inlet box 1, install return air otter board 15 afterwards, accomplish the change of filter core promptly.
The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.
Claims (9)
1. The low-resistance filtering air return inlet is characterized by comprising an air return inlet box body (1), wherein one side, close to an air return pipe, of the air return inlet box body (1) is provided with an air pipe connector (11), a filter element assembly (2) is arranged in the air return inlet box body (1), the filter element assembly (2) comprises a coarse filter (21) and a high-efficiency filter (22), and the coarse filter (21) is located on one side, close to the inside of a room, of the high-efficiency filter (22).
2. The low resistance filtering return air inlet according to claim 1, wherein the coarse filter (21) and the high efficiency filter (22) are both provided with a filter element structure without partition plates, and the high efficiency filter (22) is made of a low resistance glass fiber filter material.
3. The low resistance filtration return air inlet according to claim 1, characterized in that an inner sealing member (23) is arranged between the high efficiency filter (22) and the opening of the air duct interface (11), and the same inner sealing member (23) is arranged between the high efficiency filter (22) and the coarse efficiency filter (21).
4. The low-resistance filtering return air inlet according to claim 3, wherein a plurality of fixing components (3) are arranged on the inner wall of the return air inlet box body (1), the plurality of fixing components (3) are distributed along the circumferential direction of the return air inlet box body (1), each fixing component (3) comprises an installation seat (31), an installation screw (32) parallel to the axis of the return air inlet box body (1) is arranged on each installation seat (31), a pressure foot (33) is arranged at one end, close to the indoor, of each installation screw (32), and the pressure foot (33) is clamped on the edge of the coarse filter (21).
5. The low resistance filtering return air inlet according to claim 4, characterized in that the presser foot (33) is rotatably connected to the mounting screw (32), and the return air inlet box body (1) is detachably connected with a return air screen plate (15) at the side close to the indoor.
6. The low resistance filtering return air inlet according to claim 4, characterized in that one end of the mounting seat (31) far away from the inner wall of the return air inlet box body (1) is abutted against the high efficiency filter (22).
7. The low resistance filtering return air inlet according to claim 6, characterized in that the side of the presser foot (33) close to the coarse filter (21) is provided with anti-slip teeth (331).
8. The low-resistance filtering return air inlet according to claim 1, wherein the return air inlet box (1) is bent and extended towards the periphery near the indoor opening to form a limiting folding edge (13), a sealing groove (131) is formed in one side of the limiting folding edge (13) far away from the indoor opening, an external sealing element (14) is arranged in the sealing groove (131), the thickness of the external sealing element (14) is greater than the depth of the sealing groove (131), and the external sealing element (14) abuts against the suspended ceiling (0).
9. The low-resistance filtering return air inlet according to claim 1, wherein a lifting lug (12) is arranged at one end of the return air inlet box body (1) far away from the indoor space, and the lifting lug (12) is positioned on the outer side wall of the return air inlet box body (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122408646.1U CN215951714U (en) | 2021-09-30 | 2021-09-30 | Low-resistance filtering air return inlet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122408646.1U CN215951714U (en) | 2021-09-30 | 2021-09-30 | Low-resistance filtering air return inlet |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215951714U true CN215951714U (en) | 2022-03-04 |
Family
ID=80425311
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122408646.1U Active CN215951714U (en) | 2021-09-30 | 2021-09-30 | Low-resistance filtering air return inlet |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215951714U (en) |
-
2021
- 2021-09-30 CN CN202122408646.1U patent/CN215951714U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN215951714U (en) | Low-resistance filtering air return inlet | |
| CN214746253U (en) | Air conditioning fresh air system | |
| CN215175729U (en) | Green building's ventilation economizer with dustproof function | |
| CN205360843U (en) | Air purifier | |
| CN208943666U (en) | A kind of multistage filtering dry dust removal cabinet | |
| CN209952472U (en) | Cleanable filter | |
| CN210771902U (en) | Optical conduit ventilator for underground parking lot | |
| CN210292142U (en) | Air purifier | |
| CN213873116U (en) | Fresh air pipeline, fresh air device and air conditioner | |
| CN207006488U (en) | A kind of fast assembling-disassembling efficient air distributor | |
| CN219510999U (en) | Fan equipment for fresh air system | |
| CN212380768U (en) | Novel reactive compensation cabinet | |
| CN205878478U (en) | Novel high -efficient air supply system | |
| CN218944608U (en) | External positive pressure air filtering system | |
| CN215276331U (en) | Novel high-efficient gas filter | |
| CN210229537U (en) | Activated carbon adsorption device for waste gas treatment of waste circuit board disassembly | |
| CN216744992U (en) | Air source heat pump with safeguard measure | |
| CN213159775U (en) | Dust removal environmental protection purifies filtration cabinet | |
| CN215951736U (en) | Air supply filtering device | |
| CN218679743U (en) | Machine case wind scooper | |
| CN208720490U (en) | It is a kind of for installing the device and air-conditioner set of filter screen | |
| CN211975472U (en) | Quick-dismantling fan filtering unit | |
| CN210512062U (en) | Fresh air ventilator with high efficiency filter | |
| CN214154321U (en) | Water pump room frequency conversion cabinet of sewage plant | |
| CN218740897U (en) | Cannon-shaped filter |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |