CN219176963U - Low-resistance variable-air-quantity butterfly valve - Google Patents
Low-resistance variable-air-quantity butterfly valve Download PDFInfo
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- CN219176963U CN219176963U CN202223598858.1U CN202223598858U CN219176963U CN 219176963 U CN219176963 U CN 219176963U CN 202223598858 U CN202223598858 U CN 202223598858U CN 219176963 U CN219176963 U CN 219176963U
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- Y—GENERAL 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
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- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
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- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/12—Improving ICE efficiencies
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Abstract
The utility model discloses a low-resistance variable air volume butterfly valve, which comprises a valve body and a valve plate, wherein a flow sensor is fixedly arranged at one side of the inner end of the valve body; the flow sensor is connected with the central controller; the valve plates are two butterfly-shaped valve plates and comprise a first valve plate and a second valve plate, the first valve plate is fixedly connected with the driving shaft, the second valve plate is fixedly connected with the auxiliary shaft, and the driving shaft and the auxiliary shaft are rotatably arranged on the valve body; the driving shaft driving mechanism is connected with the central controller, and the output end of the driving shaft driving mechanism is in transmission connection with the driving shaft; the first valve block and the second valve block are connected through the linkage mechanism, so that the closed ends of the first valve block and the second valve block can synchronously move towards each other or away from each other, and the closing and opening actions of the valve are realized. The low-resistance variable air volume butterfly valve can obviously improve the valve plate adjusting efficiency, so that the air volume adjustment of the air duct is more efficient and stable.
Description
Technical Field
The utility model relates to heating ventilation equipment, in particular to a variable air volume valve.
Background
In modern urban buildings, the ventilation system is an extremely important facility, and the performance of the variable air valve serving as a terminal device of the ventilation system directly influences the efficiency and effect of air supply and exhaust operation.
The variable air volume valve comprises a valve body and a valve plate, wherein the inner end of the valve body can be communicated with an air duct, a flow sensor is fixedly arranged on one side of the inner end of the valve body, the flow sensor is arranged at the central position of a valve body channel, and the flow sensor is fixed with the valve body through a cross-shaped fixing rod. The variable air volume valve is also provided with a central controller and a valve plate control mechanism, the flow sensor is connected with the central controller, the flow sensor detects the air volume in the valve body channel in real time, and the central controller adjusts the opening and closing degree of the control valve plate after calculation so as to obtain the required air volume. However, the valve plate mechanism of the variable air volume valve in the prior art has imperfect working efficiency.
Disclosure of Invention
The utility model aims to solve the technical problem of providing the low-resistance variable air volume butterfly valve with ingenious structure, which can obviously improve the valve plate adjusting efficiency, thereby enabling the air volume adjustment of the air duct to be more efficient and stable.
In order to solve the technical problem, the utility model adopts the following technical scheme:
the low-resistance variable air volume butterfly valve comprises a valve body and a valve plate, wherein a flow sensor is fixedly arranged at one side of the inner end of the valve body, the flow sensor is arranged at the central position of a valve body channel, and the flow sensor is fixed with the valve body through a cross-shaped fixing rod; the variable air volume valve is also provided with a central controller and a driving shaft driving mechanism, and the flow sensor is connected with the central controller; the valve plates are two butterfly-shaped valve plates, namely, the two valve plates are symmetrically arranged left and right and obliquely; the valve plates comprise a first valve plate and a second valve plate, the first valve plate is fixedly connected with the driving shaft, the second valve plate is fixedly connected with the auxiliary shaft, and the driving shaft and the auxiliary shaft are arranged in parallel and are rotatably arranged on the valve body;
the driving shaft driving mechanism is connected with the central controller, and the output end of the driving shaft driving mechanism is in transmission connection with the driving shaft;
the first valve block and the second valve block are connected through the linkage mechanism, so that the closed ends of the first valve block and the second valve block can synchronously move towards each other or away from each other, and the closing and opening actions of the valve are realized.
Further, the outer ends of the first valve plate and the second valve plate are closed ends, and when the first valve plate and the second valve plate are closed, an included angle between the first valve plate and the second valve plate is 90 degrees.
Further, sealing strips are arranged at the inner end and the outer end of the first valve plate and the second valve plate, so that the ventilation quantity of the variable-air-quantity butterfly valve can be accurately closed when the first valve plate and the second valve plate are in a closed state.
Further, the linkage mechanism comprises a first base, a connecting rod and a second base; the first valve plate and the second valve plate are respectively divided into an inner half page close to the inner end and an outer half page close to the outer end by the driving shaft and the auxiliary shaft; the first base is fixedly connected with the first valve plate, the second base is fixedly connected with the second valve plate, and the first base and the second base are respectively arranged on different half pages of the first valve plate and the second valve plate; the connecting rod is hinged with the first base and the second base respectively.
Further, the connecting rod main body is bent, so that the connecting rod cannot touch the driving shaft or the auxiliary shaft when the first valve plate and the second valve plate are in a closed state or a full-open state.
Further, the first base is arranged at the position, close to the driving shaft, of the outer half page of the first valve plate, and the second base is arranged at the position, close to the auxiliary shaft, of the inner half page of the second valve plate; the connecting rod forms an obtuse angle bending in the direction from one side close to the first base to the outer end of the butterfly valve.
The variable-air-volume butterfly valve adopts a smart and unique butterfly valve block structure, and after the butterfly valve block is driven by the driving shaft, the two valve blocks can be opened in a way of moving back to back or closed in a way of moving back to back, so that the stroke of the driving mechanism and the running time of the driving mechanism are reduced by 50%, the air flow passing through the valve is more stable and uniform, the resistance of an air pipe is reduced, and the obvious noise reduction and energy saving effects are achieved.
By using the variable air volume butterfly valve, the air flowing in the pipeline can be reliably controlled and closed, and the supply of fresh air and the removal of polluted air and heat load are ensured.
Drawings
In order to make the above objects, features and advantages of the present utility model more comprehensible, embodiments accompanied with figures are described in detail below, wherein:
FIG. 1 is a schematic diagram of a low resistance variable air volume butterfly valve of the utility model.
Fig. 2 is a schematic view of the direction a in fig. 1.
Fig. 3 is a schematic view of a valve plate structure.
FIG. 4 is a schematic illustration of the linkage mechanism with the valve plate closed.
FIG. 5 is a second schematic view of the linkage mechanism, with the valve plate being opened to the maximum position.
In the figure:
1. valve body 2, valve plate
201. First valve plate 202, second valve plate
3 flow sensor 4, cross dead lever
5. Driving shaft 6, auxiliary shaft
7. First base 8, connecting rod
9. Second base
Detailed Description
The utility model is described in further detail below with reference to the attached drawings and examples:
fig. 1 shows a low-resistance variable air volume butterfly valve, which comprises a valve body 1 and a valve plate 2, wherein a flow sensor 3 is fixedly arranged at one side of the inner end of the valve body 1, the flow sensor 3 is arranged at the central position of a channel of the valve body 1, and the flow sensor 3 is fixed with the valve body 1 through a cross-shaped fixing rod 4, as shown in fig. 2; the variable air volume valve is also provided with a central controller and a driving shaft driving mechanism, and the flow sensor 3 is connected with the central controller; the valve plates 2 are two butterfly-shaped valve plates 2, namely, the two valve plates 2 are symmetrically arranged at left and right sides and obliquely; the valve block 2 comprises a first valve block 201 and a second valve block 202, the first valve block 201 is fixedly connected with the driving shaft 5, the second valve block 202 is fixedly connected with the auxiliary shaft 6, and the driving shaft 5 and the auxiliary shaft 6 are arranged in parallel and are rotatably arranged on the valve body 1.
The driving shaft driving mechanism is connected with the central controller, and the output end of the driving shaft driving mechanism is in transmission connection with the driving shaft 5.
The first valve plate 201 and the second valve plate 202 are connected through a linkage mechanism, so that the closed ends of the first valve plate 201 and the second valve plate 202 can synchronously move towards each other or away from each other, thereby realizing the closing and opening actions of the valve.
The outer ends of the first valve plate 201 and the second valve plate 202 are closed ends, and when the first valve plate 201 and the second valve plate 202 are closed, the included angle between the first valve plate 201 and the second valve plate 202 is 90 degrees, as shown in fig. 3.
Sealing strips are arranged at the inner ends and the outer ends of the first valve plate 201 and the second valve plate 202, so that the ventilation quantity of the variable-air-quantity butterfly valve can be accurately closed when the first valve plate 201 and the second valve plate 202 are in a closed state.
As shown in fig. 4 and 5, the linkage mechanism comprises a first base 7, a connecting rod 8 and a second base 9; the first valve plate 201 and the second valve plate 202 are respectively divided into an inner half page close to the inner end and an outer half page close to the outer end by the driving shaft 5 and the auxiliary shaft 6; the first base 7 is fixedly connected with the first valve plate 201, the second base 9 is fixedly connected with the second valve plate 202, the first base 7 is arranged at the position, close to the driving shaft 5, of the outer half page of the first valve plate 201, and the second base 9 is arranged at the position, close to the auxiliary shaft 6, of the inner half page of the second valve plate 202; the connecting rod 8 is hinged with the first base 7 and the second base 9 respectively; the connecting rod 8 forms an obtuse angle bending in the direction of the outer end of the butterfly valve near one side of the first base 7; thus, as shown in fig. 4, when the first and second valve plates 201 and 202 are closed, the left end of the connecting rod 8 can avoid the auxiliary shaft 6, as shown in fig. 5, when the first and second valve plates 201 and 202 are opened to the maximum position, the right end of the connecting rod 8 can also avoid the driving shaft 5, and because the structural characteristics of the air valve are that the rotation shafts of the valve plates are thicker for the stable operation of the valve plates, the connecting rod design of the utility model can avoid any structure blocking phenomenon under the condition of realizing stable and low resistance; naturally, the bending angle of the link 8 may be adjusted slightly in terms of structure as long as the above-described function is achieved, for example, by adjusting the heights of the first and second bases 7 and 9; or the first base 7 is arranged at the position, close to the driving shaft 5, of the inner half page of the first valve plate 201, and the second base 9 is arranged at the position, close to the auxiliary shaft 6, of the outer half page of the second valve plate 202; as long as the first and second bases 7 and 9 are respectively disposed on different half pages of the first and second valve plates 201 and 202, the first and second valve plates 201 and 202 can synchronously move toward or away from each other by a linkage mechanism, thereby realizing the closing and opening actions of the valve.
The outer end of the valve plate 2 is set as the closed end, and the inner end of the valve plate 2 can be made to be the closed end by adjusting the structure of the connecting rod 8 according to different designs and requirements, and the connecting rod 8 should form an obtuse angle bending towards the inner end of the butterfly valve at the side close to the second base 9.
The variable air volume butterfly valve can obviously improve the valve plate adjusting efficiency, so that the air volume adjustment of the air duct is more efficient and stable.
The full pressure and the static pressure of the air passing through the butterfly valve and the calculated dynamic pressure are monitored in real time through the flow sensor, then the angle of the two valve plates is adjusted by the driving mechanism through the calculation of the central controller until the required air quantity is reached, and the valve plates are temporarily fixed at a certain position of the required air quantity by the central control and the driving mechanism.
The original ideal control of air supply and air exhaust is different in application, the air supply sends fresh air into the room to achieve the air quantity required by design, the air exhaust mainly maintains the positive and negative pressure difference in the room, and the air quantity in the room and the positive and negative pressure are kept balanced. While the data can be uploaded to the terminal share through the BMS (building device management system Building Management System).
The foregoing is merely illustrative of the present utility model, and the present utility model is not limited thereto, and any person skilled in the art will readily recognize that variations or substitutions are within the scope of the present utility model. Therefore, the protection scope of the present utility model shall be subject to the protection scope of the claims.
Claims (6)
1. The low-resistance variable air volume butterfly valve comprises a valve body and a valve plate, wherein a flow sensor is fixedly arranged at one side of the inner end of the valve body, the flow sensor is arranged at the central position of a valve body channel, and the flow sensor is fixed with the valve body through a cross-shaped fixing rod; the variable air volume valve is also provided with a central controller and a driving shaft driving mechanism, and the flow sensor is connected with the central controller; the method is characterized in that: the valve plates are two butterfly-shaped valve plates, namely, the two valve plates are symmetrically arranged left and right and obliquely; the valve plates comprise a first valve plate and a second valve plate, the first valve plate is fixedly connected with the driving shaft, the second valve plate is fixedly connected with the auxiliary shaft, and the driving shaft and the auxiliary shaft are arranged in parallel and are rotatably arranged on the valve body;
the driving shaft driving mechanism is connected with the central controller, and the output end of the driving shaft driving mechanism is in transmission connection with the driving shaft;
the first valve block and the second valve block are connected through the linkage mechanism, so that the closed ends of the first valve block and the second valve block can synchronously move towards each other or away from each other, and the closing and opening actions of the valve are realized.
2. The variable air volume butterfly valve of claim 1, wherein: the outer ends of the first valve plate and the second valve plate are closed ends, and when the first valve plate and the second valve plate are closed, the included angle between the first valve plate and the second valve plate is 90 degrees.
3. The variable air volume butterfly valve of claim 1, wherein: sealing strips are arranged at the inner end and the outer end of the first valve plate and the second valve plate, so that the ventilation quantity of the variable-air-quantity butterfly valve can be accurately closed when the first valve plate and the second valve plate are in a closed state.
4. A variable air volume butterfly valve according to any of claims 1 to 3, wherein: the linkage mechanism comprises a first base, a connecting rod and a second base; the first valve plate and the second valve plate are respectively divided into an inner half page close to the inner end and an outer half page close to the outer end by the driving shaft and the auxiliary shaft; the first base is fixedly connected with the first valve plate, the second base is fixedly connected with the second valve plate, and the first base and the second base are respectively arranged on different half pages of the first valve plate and the second valve plate; the connecting rod is hinged with the first base and the second base respectively.
5. The variable air volume butterfly valve of claim 4, wherein: the connecting rod main body is bent, so that the connecting rod cannot touch the driving shaft or the auxiliary shaft when the first valve plate and the second valve plate are in a closed state or a full-open state.
6. The variable air volume butterfly valve of claim 5, wherein: the first base is arranged at the position, close to the driving shaft, of the outer half page of the first valve plate, and the second base is arranged at the position, close to the auxiliary shaft, of the inner half page of the second valve plate; the connecting rod forms an obtuse angle bending in the direction from one side close to the first base to the outer end of the butterfly valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223598858.1U CN219176963U (en) | 2022-12-30 | 2022-12-30 | Low-resistance variable-air-quantity butterfly valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223598858.1U CN219176963U (en) | 2022-12-30 | 2022-12-30 | Low-resistance variable-air-quantity butterfly valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219176963U true CN219176963U (en) | 2023-06-13 |
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ID=86664903
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223598858.1U Active CN219176963U (en) | 2022-12-30 | 2022-12-30 | Low-resistance variable-air-quantity butterfly valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219176963U (en) |
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2022
- 2022-12-30 CN CN202223598858.1U patent/CN219176963U/en active Active
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