Rotary flow regulating valve

Abstract

The utility model relates to the technical field of regulating air valve discloses a rotary flow regulating valve, including left valve body and right valve body, left valve body and right valve body can constitute the valve body of completion, the inside of valve body is provided with valve plate, the inside of valve body still is fixedly connected with valve seat through bolt, be provided with drive disc in right valve body and drive disc install in the inside of valve seat, transmission gear is rotatably connected between right valve body and valve seat, the inside of valve body is provided with valve shaft and valve shaft is connected with transmission gear coaxially, gear box device is installed on right valve body. O type sealing ring is added between valve body and valve seat. The valve plate is the multivalve formula rhombic structure design, one side welding of valve plate has rolling convex axle and is inserted in the waist shape groove on valve seat and the waist shape hole on drive disc in rolling convex axle. The utility model effectively avoided the problem that the existing regulating air valve exists big flow resistance coefficient, cannot reach full linear regulation.

Description

Technical Field

[0001] This utility model relates to the field of regulating valve technology, and in particular to a rotary flow regulating valve. Background Technology

[0002] Regulating dampers are key components in ventilation and air conditioning systems used to regulate airflow. They achieve airflow distribution and pressure regulation by controlling the blade angle or opening / closing state.

[0003] Traditional regulating valves, with their rotary or shut-off valve structures, generate significant local resistance when fluid passes through. This is especially problematic at small openings, where flow regulation accuracy is low and control is difficult. Sudden changes in flow velocity exacerbate resistance variations, leading to an increase in the valve's flow resistance coefficient. Consequently, this increases energy consumption and reduces equipment lifespan. To address this, we provide a rotary flow regulating valve. Utility Model Content

[0004] To address the problems of low adjustment accuracy and high flow resistance coefficient of the regulating valves mentioned above, this invention provides a rotary flow regulating valve.

[0005] This utility model is achieved using the following technical solution: a rotary flow regulating valve, comprising a left valve body and a right valve body, which together form a complete valve body. A valve plate is provided inside the valve body, and a valve seat is also fixedly connected inside the valve body by bolts. A drive disc is provided in the right valve body and installed inside the valve seat. A transmission gear is rotatably connected between the right valve body and the valve seat. A valve shaft is provided inside the valve body and coaxially connected to the transmission gear. A gearbox device is installed on the right valve body, and an actuator is installed on the gearbox device.

[0006] As a further improvement to the above solution, an O-ring is provided between the valve body and the valve seat to isolate the valve cavity from the external space and prevent leakage of the valve medium.

[0007] As a further improvement to the above solution, the inner wall of the left valve body is lined with polytetrafluoroethylene, which can increase the sealing performance.

[0008] As a further improvement to the above solution, the valve plate is designed with a multi-lobed rhomboid structure. One side of the valve plate is welded with a rolling cam, which passes through the waist-shaped groove on the valve seat and the waist-shaped hole on the drive disc, enabling it to be driven by a wedge-shaped inclined surface.

[0009] As a further improvement to the above solution, the drive disk is provided with teeth on its exterior, and the teeth mesh with the transmission gear, which facilitates the drive disk to rotate when the transmission gear rotates.

[0010] As a further improvement to the above solution, both the valve plate and the drive disc are made of stainless steel, which can extend the service life of the device.

[0011] As a further improvement to the above solution, flanges are fixedly connected to both the left and right valve bodies for connecting external pipelines.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows: 1. The valve body and valve plate of this utility model adopt a new structure, which can ensure that the internal flow channel maintains the full diameter after the valve is opened. The valve plate is laser-processed and then flat-ground. The valve plate can be sprayed with hard alloy and tungsten carbide, which enables it to be used for a long time in a high-temperature and wear-resistant environment. This not only saves production time, but also reduces production costs, making it highly practical.

[0013] 2. This utility model adopts a full-bore flow channel structure design, which has small flow loss. The valve seat is made of 304 material that can be thermally sprayed with hard alloy or all ceramic, which is more heat-resistant and wear-resistant, thereby extending the service life of the equipment.

[0014] 3. This utility model adopts a special opening and closing transmission structure, which can realize the function of quick opening and closing. The valve has a small opening and closing torque and can be controlled manually or electrically.

[0015] 4. This utility model adopts a butterfly valve body design structure, which has a scientific and reasonable overall structure that is simple and compact, and is easy to install and use. It can solve the problem of high flow regulation accuracy in fan systems. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the longitudinal section of the present invention; Figure 2 This is a top view of the structure of this utility model; Figure 3 A is a top view of the connection structure between the valve seat and the opening / closing element of this utility model; Figure 4 This is a top view schematic diagram (B) of the connection structure between the valve seat and the opening / closing element of this utility model.

[0017] Explanation of key symbols: 1. Left valve body; 2. Right valve body; 3. Valve plate; 4. Valve seat; 5. Drive disc; 6. Transmission gear; 7. Valve shaft; 8. Gearbox assembly; 9. Actuator; 10. O-ring seal. Detailed Implementation

[0018] The present invention will be further described below with reference to the accompanying drawings and specific embodiments. It should be noted that, without conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments. Example

[0019] Please combine Figure 1-4 This embodiment of a rotary flow regulating valve includes a left valve body 1 and a right valve body 2, which together form a complete valve body. A valve plate 3 is disposed inside the valve body, and a valve seat 4 is bolted to the inside of the valve body. A drive disc 5 is disposed in the right valve body 2 and installed inside the valve seat 4. A transmission gear 6 is rotatably connected between the right valve body 2 and the valve seat 4. A valve shaft 7 is disposed inside the valve body and coaxially connected to the transmission gear 6. A gearbox device 8 is mounted on the right valve body 2, and an actuator 9 is mounted on the gearbox device 8. The actuator 9 can be manual or electric. Installing an electric actuator 9 allows for connection to a PLC and DCS for remote automatic control via electrical signals. The actuator 9 is used to adjust the opening of the valve to achieve normal operation. An O-ring 10 is added between the valve body and the valve seat 4 to isolate the valve cavity from the external space and prevent the valve medium from leaking out. The inner wall of the left valve body 1 is lined with polytetrafluoroethylene to increase the sealing performance. The valve plate 3 has a multi-lobed diamond structure design. One side of the valve plate 3 is welded with a rolling cam, which passes through the waist-shaped groove on the valve seat 4 and the waist-shaped hole on the drive disc 5. It can be driven by a wedge-shaped drive. The drive disc 5 is provided with teeth on the outside, and the teeth mesh with the transmission gear 6 to facilitate the rotation of the drive disc 5 when the transmission gear 6 rotates. The valve plate 3 and the drive disc 5 are both made of stainless steel, which can extend the service life of the valve.

[0020] The implementation principle of a rotary flow regulating valve in this application embodiment is as follows: the actuator 9 controls the gearbox device 8 to operate. After the gearbox device 8 changes the output torque, it drives the transmission gear 6 connected to the valve shaft 7 to rotate. The rotation of the transmission gear 6 will cause the drive disk 5 to rotate. By rotating the drive disk 5, the meshing displacement between the valve plates 3 can be pushed, thereby achieving the purpose of regulating the valve opening. Example

[0021] This embodiment is an improvement on embodiment 1, in that: flanges are fixedly connected to both the left valve body 1 and the right valve body 2 for connecting to external pipelines.

[0022] All components of this utility model are general standard parts or parts known to those skilled in the art. Their structures and principles can be learned by those skilled in the art through technical manuals or conventional experimental methods. It is obvious to those skilled in the art that this utility model is not limited to the details of the above exemplary embodiments, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this utility model. Therefore, the embodiments should be considered exemplary and non-limiting in all respects. The scope of this utility model is defined by the appended claims rather than the foregoing description, and thus all variations falling within the meaning and scope of equivalents of the claims are intended to be included within this utility model. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0023] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A rotary flow regulating valve, characterized in that, The valve body includes a left valve body (1) and a right valve body (2), which together form a complete valve body. A valve plate (3) is provided inside the valve body, and a valve seat (4) is fixedly connected inside the valve body by bolts. A drive disc (5) is provided in the right valve body (2) and is installed inside the valve seat (4). A transmission gear (6) is rotatably connected between the right valve body (2) and the valve seat (4). A valve shaft (7) is provided inside the valve body and is coaxially connected to the transmission gear (6). A gearbox device (8) is installed on the right valve body (2), and an actuator (9) is installed on the gearbox device (8).

2. The rotary flow regulating valve as described in claim 1, characterized in that, An O-ring (10) is provided between the valve body and the valve seat (4).

3. The rotary flow regulating valve as described in claim 1, characterized in that, The inner wall of the left valve body (1) may be lined with polytetrafluoroethylene.

4. The rotary flow regulating valve as described in claim 1, characterized in that, The valve plate (3) is designed with a multi-lobed rhomboid structure. One side of the valve plate (3) is welded with a rolling cam, which is inserted into the waist-shaped groove on the valve seat (4) and the waist-shaped hole on the drive disc (5).

5. The rotary flow regulating valve as described in claim 1, characterized in that, The drive disk (5) has teeth on its exterior, and the teeth mesh with the transmission gear (6).

6. The rotary flow regulating valve as described in claim 1, characterized in that, Both the valve plate (3) and the drive disc (5) are made of stainless steel.

7. The rotary flow regulating valve as described in claim 1, characterized in that, Flanges are fixedly connected to both the left valve body (1) and the right valve body (2).

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