CN113048635A - Wall-mounted fresh air heat exchanger air inlet pipe capable of realizing switching on and off - Google Patents
Wall-mounted fresh air heat exchanger air inlet pipe capable of realizing switching on and off Download PDFInfo
- Publication number
- CN113048635A CN113048635A CN202110429836.3A CN202110429836A CN113048635A CN 113048635 A CN113048635 A CN 113048635A CN 202110429836 A CN202110429836 A CN 202110429836A CN 113048635 A CN113048635 A CN 113048635A
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- CN
- China
- Prior art keywords
- pipe
- air
- air inlet
- heat exchanger
- wall
- 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
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
- F24F13/02—Ducting arrangements
- F24F13/0281—Multilayer duct
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/89—Arrangement or mounting of control or safety devices
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
- F24F13/08—Air-flow control members, e.g. louvres, grilles, flaps or guide plates
- F24F13/10—Air-flow control members, e.g. louvres, grilles, flaps or guide plates movable, e.g. dampers
- F24F13/14—Air-flow control members, e.g. louvres, grilles, flaps or guide plates movable, e.g. dampers built up of tilting members, e.g. louvre
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
- F24F13/08—Air-flow control members, e.g. louvres, grilles, flaps or guide plates
- F24F13/10—Air-flow control members, e.g. louvres, grilles, flaps or guide plates movable, e.g. dampers
- F24F13/14—Air-flow control members, e.g. louvres, grilles, flaps or guide plates movable, e.g. dampers built up of tilting members, e.g. louvre
- F24F13/1426—Air-flow control members, e.g. louvres, grilles, flaps or guide plates movable, e.g. dampers built up of tilting members, e.g. louvre characterised by actuating means
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
- F24F13/08—Air-flow control members, e.g. louvres, grilles, flaps or guide plates
- F24F13/10—Air-flow control members, e.g. louvres, grilles, flaps or guide plates movable, e.g. dampers
- F24F13/14—Air-flow control members, e.g. louvres, grilles, flaps or guide plates movable, e.g. dampers built up of tilting members, e.g. louvre
- F24F13/1426—Air-flow control members, e.g. louvres, grilles, flaps or guide plates movable, e.g. dampers built up of tilting members, e.g. louvre characterised by actuating means
- F24F2013/1433—Air-flow control members, e.g. louvres, grilles, flaps or guide plates movable, e.g. dampers built up of tilting members, e.g. louvre characterised by actuating means with electric motors
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
- F24F13/08—Air-flow control members, e.g. louvres, grilles, flaps or guide plates
- F24F13/10—Air-flow control members, e.g. louvres, grilles, flaps or guide plates movable, e.g. dampers
- F24F13/14—Air-flow control members, e.g. louvres, grilles, flaps or guide plates movable, e.g. dampers built up of tilting members, e.g. louvre
- F24F13/1426—Air-flow control members, e.g. louvres, grilles, flaps or guide plates movable, e.g. dampers built up of tilting members, e.g. louvre characterised by actuating means
- F24F2013/1446—Air-flow control members, e.g. louvres, grilles, flaps or guide plates movable, e.g. dampers built up of tilting members, e.g. louvre characterised by actuating means with gearings
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Abstract
The air inlet pipe of the wall-mounted fresh air heat exchanger can realize switching on and off. The fresh air heat exchanger comprises a cylindrical outer pipe and a cylindrical inner pipe which is rotatably assembled in the outer pipe, wherein the outer pipe comprises an open end connected with the fresh air heat exchanger, an outdoor air inlet end and an air inlet at one side of the air inlet end. The inner tube includes the opening end that links up with new trend heat exchanger, outdoor air inlet end, the air intake of air inlet end one side, and the air intake on the inner tube corresponds with the air intake on the outer tube. The inner pipe and the outer pipe are rotatably assembled with a bearing through a shaft on the axis position. The invention has the advantages that the air pipe motor for driving the inner pipe is arranged at the open end of the outer pipe, the air pipe motor drives the gear, and the open end of the inner pipe is provided with the driven gear ring: the air pipe is switched on and off by the structure of the inner pipe and the outer pipe and the change of the relative position of the air inlets on the inner pipe and the outer pipe. The cold bridge phenomenon formed by the wall-through air pipe is eliminated. The infiltration of outdoor cold wind to indoor when having avoided indoor air pressure to reduce. The device has the advantages of simple structure, low manufacturing cost and reliable operation.
Description
Technical Field
The invention belongs to the field of indoor ventilation equipment, and particularly relates to an air inlet pipeline of a wall-mounted fresh air fan.
Background
The wall-mounted fresh air heat exchanger is directly connected with the wall-through air inlet pipe, and the problems of external air pipe beam-through punching and host hoisting space are not involved in installation. Has become the first choice of structural mode for increasing the indoor fresh air function for owners. The existing air inlet pipe is mostly a single-layer straight pipe T (as shown in figure 1), and comprises an open end connected with an indoor fan, an outdoor air inlet end and a sealing ring M between the air inlet pipe and a wall via hole. An air inlet K is formed in one side close to the air inlet end, and the air inlet K is smaller than the half circumference of the air inlet pipe. The air intake is mostly rectangular bar net shape, and air intake K is towards the below after the installation.
When the existing air inlet pipe is used in a cold area in winter, the following problems can be caused: firstly, the wall-through air pipe is provided with a hole on the building heat-insulating wall, so that outdoor cold air and indoor hot air are separated by only one layer of shell heat-insulating material of the wall-mounted fresh air heat exchanger and are far lower than the cold-insulating effect of the heat-insulating wall, and a cold bridge phenomenon is easily formed on the shell of the wall-mounted fresh air heat exchanger; secondly, when the kitchen exhausts air, a certain negative pressure can be generated in the room, and outdoor cold air can enter the room through the wall-mounted fresh air heat exchanger along the wall-through air pipe to form a cold air permeation phenomenon; thirdly, aiming at the two problems, although some manufacturers add an air inlet electric air valve and an air exhaust check valve in the wall-mounted fresh air heat exchanger, the interior of the wall-through ventilation pipe is communicated with outdoor cold air, the surface temperature of the inner walls of the air inlet electric air valve and the air exhaust check valve is close to the outdoor temperature, and the cold bridge and the cold air permeation problems caused by the wall-through air pipe still exist under the influence of the indoor and outdoor heat pressure difference.
Disclosure of Invention
The invention aims to provide a wall-mounted fresh air heat exchanger air inlet pipe capable of realizing switching on and off. The defects of the existing air inlet pipe are overcome.
The air inlet pipe comprises a cylindrical outer pipe fixed on a wall and a cylindrical inner pipe rotatably assembled in the outer pipe, wherein the outer pipe comprises an open end connected with a fresh air heat exchanger main body, an air inlet end extending to the outside and an air inlet at one side of the air inlet end. The inner tube include the opening end that links up with new trend heat exchanger main part, be located outdoor air inlet end, the air intake of air inlet end one side, the air intake on the inner tube corresponds with the air intake on the outer tube. The inner pipe and the outer pipe are rotatably assembled with the bearing through a shaft on the axle center positions of the inner pipe and the outer pipe. The air pipe motor for driving the inner pipe is fixed at the open end of the outer pipe, the driving gear is arranged on the air pipe motor or the motor-driven speed reducer, the open end of the inner pipe is provided with a complete circumferential driven gear ring or a partial driven gear ring larger than a half circumference, the driving gear is meshed with the driven gear ring, and the electric control unit of the air pipe driving motor is arranged in the fresh air heat exchanger electric controller.
In order to form an air inlet which meets the air inlet amount on the air inlet pipe, the air inlets of the inner pipe and the outer pipe comprise an opening formed in the side surface of the air inlet end of the air inlet pipe and an opening on the end surface of the air pipe corresponding to the opening in the side surface, and the opening on the end surface of the air pipe is not more than a semicircle.
The preferred structure of the invention is: the air inlet of the outer pipe is a net-type hole and is formed in the side face and the end face of the air inlet end of the air inlet pipe, the opening in the side face is rectangular, and the opening in the end face corresponds to the opening in the side face and is smaller than a semicircle; the size and the shape of the air inlet of the inner pipe correspond to those of the air inlet on the outer pipe; the method comprises the following steps that a flange extending outwards in the radial direction is arranged at the open end of an outer pipe, an air pipe axis bearing frame is assembled at the open end of the outer pipe, a bearing is arranged at the center of a circle of the end surface of an air inlet end of the outer pipe, a radial shaft rod fixing frame is fixed at the open end of an inner pipe, a section of shaft rod extending outwards is respectively fixed at the center of a circle of the end surface of the shaft rod fixing frame and the end surface of the air inlet end of the inner pipe, the shaft rods at the two ends of the inner pipe are matched with the bearings at the two ends of the outer pipe, the inner pipe is assembled in the outer pipe, an air pipe motor driving the inner pipe to rotate is installed on the flange at; the surface of the outer pipe is provided with a sealing ring between the outer pipe and a wall body, and a control element linked with an air pipe driving motor is added into an electric controller of the wall-mounted fresh air fan.
The operation process of the invention is as follows: when the device is initially installed, the air inlets on the inner pipe and the outer pipe are completely staggered, and the motor is installed and meshed with the driving gear and the gear ring. When the fresh air heat exchanger is started, the inner tube driving motor is started in advance. The inner tube is driven to rotate. The air inlets on the inner pipe and the outer pipe are gradually overlapped, the inner pipe drives the motor to stop rotating, the heat exchanger fan is started after the air inlet pipe is switched on, and outdoor air is introduced into the heat exchanger. When the fresh air heat exchanger stops running, the air fan of the heat exchanger stops running, the inner pipe driving motor is started again, the inner pipe rotates relative to the outer pipe, the air inlets on the inner pipe and the outer pipe are staggered, and the air pipe formed by the inner pipe and the outer pipe seals the channel for outdoor air to enter the room.
The invention has the positive effects that: the relative position of the air inlet on the inner pipe and the outer pipe is changed through the double-layer structure of the inner pipe and the outer pipe and the combination of relative rotation between the inner pipe and the outer pipe, and the conversion between opening and closing of the air pipe is realized. The cold bridge phenomenon formed by the shell of the fresh air heat exchanger and the wall-through air pipe is eliminated. The infiltration of outdoor cold wind to indoor when having avoided indoor air pressure to reduce. The air pipe of the invention also has the advantages of simple structure, low manufacturing cost and reliable operation.
Drawings
Fig. 1 is a perspective view of an air duct of a conventional heat exchange fresh air machine.
Fig. 2 is an overall perspective view of the air duct of the present invention.
FIG. 3 is a perspective view of the outer tube of the air hose of the present invention.
FIG. 4 is a perspective view of the inner tube of the air hose of the present invention.
FIG. 5 is a side view of the outer wall end of the outer tube of the ductwork of the present invention.
FIG. 6 is a side view of the outer end of the wall of the inner tube of the air hose of the present invention.
Detailed Description
Referring to fig. 2, 3 and 4, the air inlet duct of the present invention includes a cylindrical outer duct 1 fixed to a wall, and a cylindrical inner duct 2 rotatably fitted into the outer duct. The outer tube include with the open end of new trend heat exchanger main part linking up, extend outdoor air inlet end. The air inlet end of the outer pipe is provided with an air inlet 1-1. The open end of the outer tube has a radially outwardly extending flange 3. An air pipe motor 4 for driving the inner pipe to rotate is fixed on the flange 3. The motor 4 is provided with a driving gear (not shown) for driving the inner tube 2 to rotate, and a bearing mounting frame 7 consisting of an outer ring and a spoke is assembled on the flange 3 at the open end of the outer tube. And a bearing 8 is arranged at the central position of the wind pipe on the bearing mounting frame 7. The whole air pipe is connected to the main body of the wall-mounted fresh air heat exchanger through a flange 3.
Referring to fig. 5, the air inlet end of the outer tube 1 has an end face air inlet 1-1 corresponding to the side opening. The part of the air inlet 1-1 of the outer pipe, which is arranged on the end surface, is not more than a semicircle. A bearing 9 is arranged at the center of the end face of the air inlet end of the outer pipe 1
Referring to fig. 4 and 6, the inner tube 2 includes an open end connected to the fresh air fan, and an air inlet end located outdoors. A radial shaft lever mounting rack 2-2 is fixed at the open end of the inner pipe 2, and a section of shaft lever 2-3 extending outwards is fixed at the center of the circle 2-2 of the inner pipe shaft lever mounting rack. The air inlet end of the inner pipe is provided with an air inlet 2-1 which is arranged on the side surface of the inner pipe and the end surface corresponding to the side surface opening. The part of the air inlet on the inner pipe, which is arranged on the end surface, is not more than a semicircle. The air inlet on the inner pipe is radially corresponding to the air inlet on the outer pipe. The axial center of the end surface of the air inlet end of the inner pipe is fixed with an outward extending shaft lever 2-4. The open end of the inner pipe 2 is provided with a complete circumferential driven gear ring 6, and the driven gear ring 6 is meshed with a driving gear driven by an air pipe motor.
Referring to fig. 1, the inner tube 2 is assembled in the outer tube 1 by the shaft rods 2-3 and 2-4 at the two ends of the inner tube 2 matching with the bearings 8 and 9 at the two ends of the outer tube 1, and the outer tube is sleeved with a sealing ring (not shown) between the outer tube and the wall.
Claims (3)
1. The wall-mounted fresh air heat exchanger air inlet pipe capable of realizing switching on and off is characterized in that: including fixing the cylinder outer tube on the wall, rotatable assembly is at the cylinder inner tube in the outer tube, the outer tube include with the opening end that fresh air heat exchanger main part linked up, extend outdoor air inlet end, the air intake of air inlet end one side. The inner tube includes the opening end that links up with new trend heat exchanger main part, is located outdoor air inlet end, the air intake of air inlet end one side, the air intake on the inner tube corresponds with the air intake on the outer tube, inner tube and outer tube are through axle and the bearing rotation assembly on the axle center position of inside and outside pipe. The air pipe motor for driving the inner pipe is fixed at the open end of the outer pipe, the driving gear is arranged on the air pipe motor or the motor-driven speed reducer, the driven gear ring with a complete circumference or the local driven gear ring larger than a half circumference is arranged on the outer circumference of the open end of the inner pipe, the driving gear is meshed with the driven gear ring, and the electric control unit of the air pipe driving motor is arranged in the fresh air heat exchanger electric controller.
2. The air inlet pipe of the wall-mounted fresh air heat exchanger capable of realizing on-off conversion according to claim 1, which is characterized in that: the air inlets of the inner pipe and the outer pipe comprise openings formed in the side faces of the air inlet pipe and openings on the end faces of the air pipes corresponding to the openings in the side faces, and the openings on the end faces of the air pipes are not larger than semicircles.
3. The air inlet pipe of the wall-mounted fresh air heat exchanger capable of realizing on-off conversion according to claim 1, which is characterized in that: the air inlet of the outer pipe is a net-type hole and is formed in the side face and the end face of the air inlet end of the air inlet pipe, the opening in the side face is rectangular, and the opening in the end face corresponds to the opening in the side face and is smaller than a semicircle; the size and the shape of the air inlet of the inner pipe correspond to those of the air inlet on the outer pipe; the method comprises the following steps that a flange extending outwards in the radial direction is arranged at the open end of an outer pipe, an air pipe axis bearing frame is assembled at the open end of the outer pipe, a bearing is arranged at the center of a circle of the end surface of an air inlet end of the outer pipe, a radial shaft rod fixing frame is fixed at the open end of an inner pipe, a section of shaft rod extending outwards is respectively fixed at the center of a circle of the end surface of the shaft rod fixing frame and the end surface of the air inlet end of the inner pipe, the shaft rods at the two ends of the inner pipe are matched with the bearings at the two ends of the outer pipe, the inner pipe is assembled in the outer pipe, an air pipe motor driving the inner pipe to rotate is installed on the flange at; the surface of the outer pipe is provided with a sealing ring between the outer pipe and a wall body, and a control element linked with an air pipe driving motor is added into an electric controller of the wall-mounted fresh air fan.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110429836.3A CN113048635A (en) | 2021-04-21 | 2021-04-21 | Wall-mounted fresh air heat exchanger air inlet pipe capable of realizing switching on and off |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110429836.3A CN113048635A (en) | 2021-04-21 | 2021-04-21 | Wall-mounted fresh air heat exchanger air inlet pipe capable of realizing switching on and off |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113048635A true CN113048635A (en) | 2021-06-29 |
Family
ID=76519895
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110429836.3A Pending CN113048635A (en) | 2021-04-21 | 2021-04-21 | Wall-mounted fresh air heat exchanger air inlet pipe capable of realizing switching on and off |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113048635A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114838412A (en) * | 2022-03-04 | 2022-08-02 | 青岛海尔空调器有限总公司 | Air conditioner indoor unit and air conditioner |
| WO2023165258A1 (en) * | 2022-03-04 | 2023-09-07 | 青岛海尔空调器有限总公司 | Air conditioner indoor unit and air conditioner |
-
2021
- 2021-04-21 CN CN202110429836.3A patent/CN113048635A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114838412A (en) * | 2022-03-04 | 2022-08-02 | 青岛海尔空调器有限总公司 | Air conditioner indoor unit and air conditioner |
| WO2023165258A1 (en) * | 2022-03-04 | 2023-09-07 | 青岛海尔空调器有限总公司 | Air conditioner indoor unit and air conditioner |
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