VDV rotating plate air exchange device
By adopting anti-blocking shaft fixing device and rotary plate device in the air treatment unit, combined with the inclined plate structure of the deflector system, the problems of lax sealing of the rotary plate and shaft jamming are solved, achieving more efficient sealing and lower manufacturing costs.
Patent Information
- Application Number
- CN202421785803.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-26
- Publication Date
- 2025-05-02
- Estimated Expiration
- 2034-07-26
AI Technical Summary
The rotary plates in existing air treatment units are not tightly sealed, which is prone to air leakage, and the shaft is easily stuck, resulting in system damage; the baffle structure is likely to lead to a return effect.
The shaft fixing device and the rotary plate device with anti-jamming function are adopted, and combined with the deflector system, it is connected to the rotary shaft fixing device through the upper shaft connection device and the lower shaft connection device, instead of the long shaft, reduces manufacturing costs, and sealing strips with positive and negative pressure sealing effect are provided at both ends of the rotary plate group. The deflector system adopts a beveled plate structure to reduce reflow.
It effectively solves the problems of lax sealing of the rotary plate and jamming of the shaft, reduces manufacturing costs, prevents air leakage and return flow, and improves the reliability and efficiency of the system.
Smart Images
Figure CN222824508U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of air handling unit equipment, in particular to a VDV rotating plate air exchange device. Background Art
[0002] VDV is the abbreviation of Variableduct ventilation, which means variable duct air exchange air conditioning. It is a new type of indoor and outdoor air conversion device. Its function is the same as that of central air conditioning, which is to circulate indoor and outdoor air. It can discharge indoor polluted air to the outside and input outdoor fresh air into the room after treatment.
[0003] There is an air handling unit on the market, which mainly includes a shell. Four ventilation holes are arranged at intervals along the circumferential direction on the side of the shell. The four ventilation holes are an external air inlet, an internal air inlet, a return air outlet and an exhaust outlet in sequence along the circumference of the shell. The external air inlet and the exhaust outlet are connected to the outside air, the internal air inlet is connected to the indoor air through an air handling device, and the return air outlet is connected to the indoor air through a return air duct. A rotating plate for mode switching is rotatably arranged inside the shell, and a first wind shield is arranged on the inner wall of the shell between the external air inlet and the internal air inlet, a second wind shield is arranged between the internal air inlet and the return air outlet, a third wind shield is arranged between the return air outlet and the exhaust outlet, and a fourth wind shield is arranged between the exhaust outlet and the external air inlet. When this type of air exchange air conditioner is working: the driving device drives the rotating plate to rotate around the central axis, so that a gap is generated between the rotating plate and the first wind shield, and then an air inlet channel for fresh air is formed between the rotating plate and the inner air inlet. At this time, the fresh air entering from the outer air inlet is introduced into the air treatment equipment through the air inlet channel, and then enters the room. The indoor temperature is lowered by the low-temperature fresh air from the outside, and the size of the gap between the rotating plate and the first wind shield can be accurately controlled by the driving device. Specifically, the size of the gap can be changed according to the temperature difference between the indoor temperature and the set temperature, thereby ensuring the constant indoor temperature.
[0004] There is a huge rotating shaft between the rotating plates in the existing air handling unit. In order to prevent air leakage between the two rotating plates, a sealing plate is needed to seal the rotating plates. Even so, it cannot completely guarantee that there will be no air leakage, and the cost is increased. Conventional upper and lower bearings use external spherical seat bearings, and if the rotating plate does not move for a long time or the bearings are flooded, the bearings will rust or get stuck, causing the rotating plate to be unable to move. In severe cases, the rotating shaft, drive device, and even the system or other related components will be damaged.
[0005] Moreover, the baffles in the existing air exchange devices generally adopt a right-angle bending structure. When the air is entering and exiting, the structure easily blocks part of the wind force, causing a backflow effect.
[0006] Meanwhile, the sealing strips on the existing rotating plates are generally common single-pressure sealing strips, which have poor sealing performance and are prone to air leakage.
[0007] The above problems are in urgent need of improvement and need to be resolved. Utility Model Content
[0008] In order to overcome the shortcomings of the prior art, a VDV rotating plate air exchange device is proposed.
[0009] The technical solution adopted by the utility model is: to provide a VDV rotating plate air exchange device, including a rotating shaft fixing device with an anti-stuck function, a rotating plate device installed on the rotating shaft fixing device, and a guide plate system for air exchange in cooperation with the rotating plate device; the rotating shaft fixing device includes an upper anti-stuck crossbeam, a lower anti-stuck crossbeam matched with the upper anti-stuck crossbeam, a mounting plate arranged under the lower anti-stuck crossbeam, and an actuator installed on the mounting plate; the rotating plate device is installed between the upper anti-stuck crossbeam and the lower anti-stuck crossbeam; the rotating plate device includes an upper rotating shaft connecting device, a lower rotating shaft connecting device matched with the upper rotating shaft connecting device, and an actuator installed on the mounting plate. The rotating plate group between the connecting device and the upper rotating shaft connecting device is installed with sealing strips with positive and negative pressure sealing effects at both ends of the rotating plate group; the upper rotating shaft connecting device is rotatably connected to the upper anti-stuck beam; the lower rotating shaft connecting device is rotatably connected to the lower anti-stuck beam; the guide plate system includes four guide plates arranged in a circular uniform array, and an air outlet is provided between each two adjacent guide plates. The air outlets are arranged counterclockwise from the top to be the external air inlet, the internal air inlet, the return air outlet and the exhaust outlet, and an extension plate is provided on the guide plate between the exhaust outlet and the external air inlet; the guide plate system is connected in contact with the sealing strip on the rotating plate group through the guide plate.
[0010] Preferably, the upper anti-stuck cross beam comprises an upper cross beam and at least one upper graphite copper bushing arranged on the upper cross beam; the upper anti-stuck cross beam is connected to the upper rotating shaft connecting device via the upper cross beam.
[0011] Preferably, the lower anti-stuck cross beam comprises a lower cross beam and at least one lower graphite copper bushing arranged on the lower cross beam; the lower anti-stuck cross beam is connected to the lower rotating shaft connecting device through the lower cross beam.
[0012] Preferably, the upper rotating shaft connecting device comprises an upper fastener and an upper rotating shaft mounted on the upper fastener; the upper rotating shaft connecting device is connected to the upper crossbeam via the upper rotating shaft.
[0013] Preferably, the lower rotating shaft connecting device comprises a lower fastener and a lower rotating shaft mounted on the lower fastener; the lower rotating shaft connecting device is connected to the lower cross beam via the lower rotating shaft.
[0014] Preferably, the transfer plate set includes at least one transfer plate; the transfer plate is arranged between the upper fastener and the lower fastener.
[0015] Preferably, the sealing strip comprises a groove-shaped sealing strip, and ingot-shaped sealing edges having positive and negative pressure sealing effects are arranged on both sides of the groove-shaped sealing strip.
[0016] Preferably, the guide plate includes a baffle, an inclined plate connected to the baffle at an angle, and a folding plate connected to the inclined plate; the guide plate is connected to the ingot-shaped sealing edge in the sealing strip through the baffle.
[0017] Preferably, the angle between the baffle and the inclined plate is between 90° and 180°, and is greater than 90°.
[0018] Beneficial effects of the utility model: the adaptive rotating plate air exchange device of the utility model adopts an upper rotating shaft connecting device and a lower rotating shaft connecting device to be connected with the rotating shaft fixing device, replacing the long axis in the existing air handling unit, reducing the manufacturing cost, and the rotating shaft connecting device and the lower rotating shaft connecting device directly set the rotating plate group, so that the rotating plates are sealed and spliced to prevent the generation of gaps.
[0019] The upper rotating shaft is inserted into the upper graphite copper sleeve, and the lower rotating shaft is inserted into the lower graphite copper sleeve. Through the corrosion resistance and self-lubricating effect of the upper and lower graphite copper sleeves, the problem that the conventional upper and lower bearings use outer spherical seat bearings and the rotating plate does not move for a long time or the bearings are water-logged will cause the bearings to rust or get stuck, resulting in the rotating plate being unable to move, and in severe cases, damaging the rotating shaft, the drive device, and even the system or other related components can be effectively solved.
[0020] Sealing strips with positive and negative pressure sealing effects are arranged at both ends of the rotating plate group. When the rotating plate collides with the guide plate, the sealing strip contacts the guide plate. Under the positive and negative pressure sealing effects, the sealing strip and the guide plate are in contact and sealed, effectively preventing air leakage.
[0021] In addition, right-angle folded plates are generally used as baffles in existing air handling units. When wind passes through the right-angled edges, it is very easy to be blocked back. The blocked wind conflicts with the incoming air, forming a backflow effect, affecting normal air supply and exhaust. Setting the angle between the baffle and the inclined plate to above 90° can form a sloped guide effect, solving the backflow and wind resistance problems. BRIEF DESCRIPTION OF THE DRAWINGS
[0022] Figure 1 It is a three-dimensional structural schematic diagram of a VDV rotating plate air exchange device described in the utility model;
[0023] Figure 2 for Figure 1 Schematic diagram of the exploded structure of the rotating shaft fixing device;
[0024] Figure 3 for Figure 1 Schematic diagram of the explosion structure of the transfer plate device;
[0025] Figure 4 for Figure 1 Schematic diagram of the planar structure of the middle guide plate system;
[0026] Figure 5 for Figure 3 Schematic diagram of the structure of the middle sealing strip;
[0027] Figure 6 for Figure 3 Schematic diagram of the structure of the middle guide plate. DETAILED DESCRIPTION
[0028] The present invention will be further described below with reference to the accompanying drawings.
[0029] Specifically, Figures 1 to 4 As shown, a VDV rotating plate air exchange device is provided, including a rotating shaft fixing device 10 with an anti-stuck function, a rotating plate device 20 installed on the rotating shaft fixing device 10, and a guide plate system 30 for air exchange in cooperation with the rotating plate device 20; the rotating shaft fixing device 10 includes an upper anti-stuck beam 11, a lower anti-stuck beam 12 matched with the upper anti-stuck beam 11, a mounting plate 13 arranged under the lower anti-stuck beam 12, and an actuator 14 installed on the mounting plate 13; the rotating plate device 20 is installed between the upper anti-stuck beam 11 and the lower anti-stuck beam 12; the rotating plate device 20 includes an upper rotating shaft connecting device 21, a lower rotating shaft connecting device 22 matched with the upper rotating shaft connecting device 21, and an actuator 14 arranged on the lower rotating shaft connecting device 22 and the upper rotating shaft The rotating plate group 23 between the connecting devices 21, and the sealing strips 24 with positive and negative pressure sealing effects are installed at both ends of the rotating plate group 23; the upper rotating shaft connecting device 21 is rotatably connected to the upper anti-stuck beam 11; the lower rotating shaft connecting device 22 is rotatably connected to the lower anti-stuck beam 12; the guide plate system 30 includes four guide plates 31 in a circular uniform array, and an air outlet is provided between each two adjacent guide plates 31. The air outlets are arranged counterclockwise from the top, namely, the outer air inlet 32, the inner air inlet 33, the return air outlet 34 and the exhaust outlet 35, and an extension plate 36 is provided on the guide plate 31 between the exhaust outlet 35 and the outer air inlet 32; the guide plate system 30 is connected in contact with the sealing strip 24 on the rotating plate group 23 through the guide plate 31.
[0030] like Figure 2 and 4 As shown, the shaft fixing device 10 is installed in the air exchange device housing 40 and is further fixed by connecting the upper anti-stuck cross beam 11 to the upper surface of the housing 40 and the lower anti-stuck cross beam 12 to the lower surface of the housing 40 .
[0031] like Figure 1As shown, the rotating plate device 20 is arranged between the upper anti-stuck beam 11 and the lower anti-stuck beam 12, and is rotatably connected; when the rotating plate device 20 rotates, the upper anti-stuck beam 11 and the lower anti-stuck beam 12 prevent the rotating plate device 20 from getting stuck, thereby eliminating a series of problems caused by the inability of the rotating plate device 20 to rotate.
[0032] like Figure 1 and Figure 3 As shown, the rotating plate group 23 is arranged between the upper rotating shaft connecting device 21 and the lower rotating shaft connecting device 22, and can be rotated by being connected to the upper anti-stuck beam 11 and the lower anti-stuck beam 12 through the upper rotating shaft connecting device 21 and the lower rotating shaft connecting device 22, thereby eliminating the rotating shaft and the sealing plate in the existing air handling unit, reducing the manufacturing cost, and also preventing air leakage on the rotating plate group 23.
[0033] like Figure 4 As shown, the guide plate system 30 is fixed in the shell 40 through the guide plates 31, and the guide plates 31 are distributed in a circular uniform array with the central axis of the rotating plate device 20. The guide plates 31 are a baffle with a guide function. Compared with the baffles in the existing air handling units, they have a wind guide effect and will not produce backflow and blocking effects.
[0034] Furthermore, the upper anti-stuck cross beam 11 includes an upper cross beam 111 and at least one upper graphite copper bushing 112 arranged on the upper cross beam 111 ; the upper anti-stuck cross beam 111 is connected to the upper rotating shaft connecting device 21 via the upper cross beam 111 .
[0035] Furthermore, the lower anti-stuck cross beam 12 includes a lower cross beam 121 and at least one lower graphite copper bushing 122 arranged on the lower cross beam 121 ; the lower anti-stuck cross beam 12 is connected to the lower rotating shaft connecting device 22 via the lower cross beam 121 .
[0036] like Figure 2 and Figure 4 As shown, the upper cross beam 111 is fixed on the upper surface of the shell 40 , and the lower cross beam 121 is fixed on the lower surface of the shell 40 .
[0037] The upper graphite copper sleeve 112 and the lower graphite copper sleeve 122 are wear-resistant and self-lubricating; one upper graphite copper sleeve 112 is provided according to the actual needs of the air exchange device; the lower graphite copper sleeve 122 needs to bear the weight of the rotating plate device 20, and two are provided according to the actual needs of the air exchange device; the wear-resistant and self-lubricating effects of the upper graphite copper sleeve 112 and the lower graphite copper sleeve 122 prevent the rotating plate device 20 from getting stuck, eliminating a series of problems caused by the inability of the rotating plate device 20 to rotate.
[0038] Furthermore, the upper rotating shaft connecting device 21 includes an upper fastener 211 and an upper rotating shaft 212 installed on the upper fastener 211 ; the upper rotating shaft connecting device 21 is connected to the upper crossbeam 111 via the upper rotating shaft 212 .
[0039] Furthermore, the lower rotating shaft connecting device 22 includes a lower fastener 221 and a lower rotating shaft 222 mounted on the lower fastener 221 ; the lower rotating shaft connecting device 22 is connected to the lower cross beam 121 via the lower rotating shaft 222 .
[0040] like Figure 3 As shown, a rotating plate group 23 is installed between the upper fastener 211 and the lower fastener 221; the upper fastener 211 is inserted into the upper graphite copper sleeve 112 through the upper rotating shaft 212 and is rotatably connected to the upper crossbeam 111; the lower fastener 221 is inserted into the two lower graphite copper sleeves 122 and is rotatably connected to the lower crossbeam 121 through the lower rotating shaft 222; the rotating plate group 23 is prevented from being stuck and rotated, and the long rotating shaft used in the existing air handling unit is replaced by the upper rotating shaft 212 and the lower rotating shaft 222, thereby reducing the manufacturing cost.
[0041] Furthermore, the rotating plate set 23 includes at least one rotating plate 231 ; the rotating plate 231 is disposed between the upper fastener 211 and the lower fastener 221 .
[0042] like Figure 3 As shown, the rotating plate group 23 is provided with two rotating plates 231 , and the two rotating plates 231 are seamlessly connected to each other, thereby reducing the long rotating shaft used in the existing air handling unit and achieving a situation where there is no air leakage between the rotating plates 231 .
[0043] Furthermore, the sealing strip 24 includes a groove-shaped sealing strip 241 , and ingot-shaped sealing edges 242 having positive and negative pressure sealing effects are arranged on both sides of the groove-shaped sealing strip 241 .
[0044] like Figure 4 and Figure 5 As shown, the ingot-shaped sealing edge 242 includes two lips, and an annular groove is provided between the two lips; when the rotating plate 231 collides with the guide plate 31, the lip is squeezed on the sealing surface, and the sealing pressure is provided by the elasticity of the lip itself and the pressure of the sealing medium in the annular groove between the two lips, thereby forming a positive and negative pressure sealing effect, ensuring the contact sealing between the sealing strip 24 and the guide plate 31, and effectively preventing air leakage.
[0045] Furthermore, the guide plate 31 includes a baffle 311 , an inclined plate 312 connected to the baffle 311 at an angle, and a folding plate 313 connected to the inclined plate 312 ; the guide plate 31 is in contact and connected with the ingot-shaped sealing edge 242 in the sealing strip 24 through the baffle 311 .
[0046] Furthermore, the angle between the baffle 311 and the inclined plate 312 is between 90° and 180°, and is greater than 90°.
[0047] like Figure 6 As shown, the angle between the baffle 311 and the inclined plate 312 is 120°. At this angle, the guide plate 31 has the best guide effect. In existing air handling units, right-angle folded plates are generally used as baffles. When wind passes through the right-angled edge, it is very easy to be blocked back. The blocked wind conflicts with the incoming air, forming a backflow effect, affecting normal air supply and exhaust. Setting the angle between the baffle 311 and the inclined plate 312 to more than 90° can effectively solve this problem.
[0048] The above shows and describes the basic principles and main features of the utility model and the advantages of the utility model. For those skilled in the art, it is obvious that the utility model is not limited to the details of the above exemplary embodiments, and can be implemented in other specific forms without departing from the spirit or basic features of the utility model. Therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive. The scope of the utility model is limited by the attached claims rather than the above description, and it is intended to include all changes within the meaning and scope of the equivalent elements of the claims. Any figure mark in the claims should not be regarded as limiting the claims involved.
Claims
1. A VDV rotating plate air exchange device, characterized in that: It comprises a rotating shaft fixing device (10) with an anti-jamming function, a rotating plate device (20) installed on the rotating shaft fixing device (10), and a guide plate system (30) that cooperates with the rotating plate device (20) to change air; The rotating shaft fixing device (10) comprises an upper anti-stuck cross beam (11), a lower anti-stuck cross beam (12) matched with the upper anti-stuck cross beam (11), a mounting plate (13) arranged under the lower anti-stuck cross beam (12), and an actuator (14) mounted on the mounting plate (13); the rotating plate device (20) is mounted between the upper anti-stuck cross beam (11) and the lower anti-stuck cross beam (12); The rotating plate device (20) comprises an upper rotating shaft connecting device (21), a lower rotating shaft connecting device (22) matched with the upper rotating shaft connecting device (21), a rotating plate group (23) arranged between the lower rotating shaft connecting device (22) and the upper rotating shaft connecting device (21), and sealing strips (24) with positive and negative pressure sealing effects installed at both ends of the rotating plate group (23); the upper rotating shaft connecting device (21) is rotatably connected to the upper anti-stuck cross beam (11); and the lower rotating shaft connecting device (22) is rotatably connected to the lower anti-stuck cross beam (12); The guide plate system (30) comprises four guide plates (31) arranged in a uniform annular array, an air outlet is provided between each two adjacent guide plates (31), the air outlets are arranged counterclockwise from top to bottom and are an external air inlet (32), an internal air inlet (33), a return air outlet (34) and an exhaust air outlet (35), and an extension plate (36) is provided on the guide plate (31) between the exhaust air outlet (35) and the external air inlet (32); the guide plate system (30) is in contact with and connected to a sealing strip (24) on a rotating plate group (23) via the guide plate (31).
2. A VDV rotating plate air exchange device according to claim 1, characterized in that: The upper anti-stuck cross beam (11) comprises an upper cross beam (111) and at least one upper graphite copper bushing (112) arranged on the upper cross beam (111); the upper anti-stuck cross beam (111) is connected to an upper rotating shaft connecting device (21) via the upper cross beam (111).
3. A VDV rotating plate air exchange device according to claim 2, characterized in that: The lower anti-stuck cross beam (12) comprises a lower cross beam (121) and at least one lower graphite copper bushing (122) arranged on the lower cross beam (121); the lower anti-stuck cross beam (12) is connected to a lower rotating shaft connecting device (22) via the lower cross beam (121).
4. A VDV rotating plate air exchange device according to claim 3, characterized in that: The upper rotating shaft connecting device (21) comprises an upper fastener (211) and an upper rotating shaft (212) mounted on the upper fastener (211); the upper rotating shaft connecting device (21) is connected to the upper crossbeam (111) via the upper rotating shaft (212).
5. A VDV rotating plate air exchange device according to claim 4, characterized in that: The lower rotating shaft connecting device (22) comprises a lower fastener (221) and a lower rotating shaft (222) mounted on the lower fastener (221); the lower rotating shaft connecting device (22) is connected to the lower crossbeam (121) via the lower rotating shaft (222).
6. A VDV rotating plate air exchange device according to claim 5, characterized in that: The rotating plate group (23) comprises at least one rotating plate (231); the rotating plate (231) is arranged between an upper fastener (211) and a lower fastener (221).
7. A VDV rotating plate air exchange device according to claim 6, characterized in that: The sealing strip (24) comprises a groove-shaped sealing strip (241), and ingot-shaped sealing edges (242) having positive and negative pressure sealing effects are arranged on both sides of the groove-shaped sealing strip (241).
8. A VDV rotating plate air exchange device according to claim 7, characterized in that: The guide plate (31) comprises a baffle (311), an inclined plate (312) connected to the baffle (311) at an angle, and a folding plate (313) connected to the inclined plate (312); the guide plate (31) is in contact with and connected to a Yuanbao-shaped sealing edge (242) in a sealing strip (24) via the baffle (311).
9. A VDV rotating plate air exchange device according to claim 8, characterized in that: The angle between the baffle plate (311) and the inclined plate (312) is between 90° and 180°, and is greater than 90°.