Roots blower vent valve

Abstract

The utility model relates to the technical field of industry, the roots blower emptying valve is provided, including emptying valve, and the emptying valve has the connecting pipe, still include: pressure -relief mechanism, pressure -relief mechanism includes jar body, and jar body communicates with the connecting pipe, and the inner wall of jar body has the fixed cover, is provided with rubber sealing block in the fixed cover, and rubber sealing block is fixedly connected with the connecting block on, and the connecting block is fixedly connected with the first sliding plate on, and the first sliding plate is connected with the inner wall of jar body and slides, and the jar body is opened with the screw hole, and the screw hole is screw connected with the screw rod, and the screw rod is connected with the first knob on, and the other end of screw rod extends to jar body and is rotatably connected with the second sliding plate, and the second sliding plate is connected with the first sliding plate and has a plurality of springs, and the jar body is opened with a plurality of exhaust ports, the device can adjust screw rod position through rotating the first knob, realizes the linear control to spring pre -tightening force, accurately sets pressure relief pressure threshold value, can adjust quickly according to different working conditions, improves pressure control adaptability and flexibility.

Description

Technical Field

[0001] This utility model relates to the field of industrial technology, specifically to a Roots blower vent valve. Background Technology

[0002] In modern industry, Roots blowers, as a type of positive displacement gas conveying equipment, are widely used in many industries such as wastewater treatment, pneumatic conveying, and aquaculture. The vent valve, as a key safety component of the Roots blower, automatically opens to release pressure when the internal pressure exceeds a set threshold, ensuring the safe and stable operation of the equipment.

[0003] Traditional Roots blower vent valves typically employ a fixed pressure threshold design, meaning the pressure relief pressure is pre-set at the factory and cannot be dynamically adjusted based on the actual operating conditions of the Roots blower. In actual use, the operating conditions of the Roots blower can change due to variations in the conveyed medium, pipeline resistance, ambient temperature, and other factors. When operating conditions deviate from the design conditions, vent valves with fixed pressure thresholds may prematurely release pressure or fail to release pressure in a timely manner. This not only reduces equipment operating efficiency but also poses a risk of equipment damage or even safety accidents due to uncontrolled pressure. Utility Model Content

[0004] (a) Technical problems to be solved

[0005] In view of the shortcomings of the prior art, this utility model provides a Roots blower vent valve to solve the problems of the prior art mentioned in the background art.

[0006] (II) Technical Solution

[0007] To achieve the above objectives, this utility model provides the following technical solution: a Roots blower vent valve, including a vent valve, wherein a connecting pipe is connected to the vent valve, and further comprising:

[0008] A pressure relief mechanism includes a tank body connected to a connecting pipe. A fixed cover is fixedly connected to the inner wall of the tank body. A rubber sealing block is installed inside the fixed cover and cooperates with the fixed cover. A connecting block is fixedly connected to the rubber sealing block, and a first sliding plate is fixedly connected to the connecting block. The first sliding plate is slidably connected to the inner wall of the tank body. A threaded hole is provided on the tank body, and a screw is threadedly connected to the threaded hole. A first knob is connected to the screw. The other end of the screw extends into the tank body and is rotatably connected to a second sliding plate. Multiple springs are connected between the second sliding plate and the first sliding plate. Multiple vents are provided on the tank body.

[0009] Optionally, the vent valve includes a spherical shell with two fixed pipes connected to it. One of the fixed pipes is connected to the connecting pipe. A cylinder is connected to the spherical shell, and a rotating rod is rotatably connected inside the cylinder. A second knob is fixedly connected to the rotating rod. The other end of the rotating rod extends into the spherical shell and is connected to a ball. The ball fits into the inner wall of the spherical shell, and a through vent is provided on the ball, which is connected to the two fixed pipes.

[0010] Optionally, a pressure gauge is installed on the connecting pipe.

[0011] Optionally, the second slide plate is provided with multiple guide holes, and a guide rod is slidably connected in the guide holes. One end of the guide rod passes through a spring and is fixedly connected to the first slide plate.

[0012] Optionally, a dust-proof ring is fitted onto the tank body.

[0013] Optionally, a connector is connected to the connecting pipe.

[0014] (III) Beneficial Effects

[0015] In summary, this utility model has at least one of the following beneficial technical effects:

[0016] The Roots blower vent valve allows for linear control of the spring preload by rotating the first knob, enabling precise setting of the pressure relief threshold. Compared to traditional vent valves with fixed pressure thresholds, this design allows for rapid adjustment based on different operating conditions of the Roots blower, significantly improving the adaptability and flexibility of equipment pressure control. Attached Figure Description

[0017] Figure 1 This is a cross-sectional structural diagram of the disassembled present invention;

[0018] Figure 2 This utility model Figure 1 A magnified schematic diagram of the local structure at point A;

[0019] Figure 3 This utility model Figure 1 A magnified view of the structure at point B in the middle;

[0020] Figure 4 This is a schematic diagram of the overall structure of this utility model.

[0021] In the diagram: 1. Exhaust valve; 2. Connecting pipe; 3. Tank body; 4. Fixing cover; 5. Rubber sealing block; 6. Connecting block; 7. First sliding plate; 8. Screw; 9. First knob; 10. Second sliding plate; 11. Spring; 12. Exhaust port; 13. Spherical shell; 14. Fixing pipe; 15. Cylinder body; 16. Rotating rod; 17. Second knob; 18. Ball; 19. Pressure gauge; 20. Guide rod; 21. Dust baffle ring; 22. Connector. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] The present invention will be further described in detail below with reference to the accompanying drawings.

[0024] Reference Figures 1-4The Roots blower vent valve includes a vent valve 1, a connecting pipe 2 connected to the vent valve 1, and a connector 22 connected to the connecting pipe 2. It also includes a pressure relief mechanism, comprising a tank 3 connected to the connecting pipe 2. A fixing cover 4 is fixedly connected to the inner wall of the tank 3. A rubber sealing block 5 is installed inside the fixing cover 4, cooperating with the fixing cover 4. A connecting block 6 is fixedly connected to the rubber sealing block 5, and a first sliding plate 7 is fixedly connected to the connecting block 6. The first sliding plate 7 slides against the inner wall of the tank 3. The tank body 3 has a threaded hole, and a screw 8 is threaded into the threaded hole. A first knob 9 is connected to the screw 8. The other end of the screw 8 extends into the tank body 3 and is rotatably connected to a second sliding plate 10. Multiple springs 11 are connected between the second sliding plate 10 and the first sliding plate 7. Multiple vents 12 are provided on the tank body 3. When the pressure in the pipeline rises abnormally, gas enters the tank body 3, pushes the rubber sealing block 5 and connected components to move, compresses the springs 11, and the gas is discharged from the vents 12, thus achieving pressure relief. By rotating the first knob 9 to adjust the position of the screw 8, the preload of the spring 11 can be changed, thereby flexibly adjusting the pressure relief threshold to adapt to different working conditions. A pressure gauge 19 is installed on the connecting pipe 2 to display the gas pressure in the connecting pipe 2 in real time. The operator can judge the operating status of the Roots blower based on this and promptly detect abnormal pressure conditions so as to take corresponding measures. Multiple guide holes are opened on the second slide plate 10, and guide rods 20 are slidably connected in the guide holes. One end of the guide rod 20 passes through the spring 11 and is fixedly connected to the first slide plate 7. During the pressure relief process, the extension and contraction of the spring 11 may cause the first slide plate 7 and the second slide plate 10 to deviate. The guide rod 20 can ensure that the first slide plate 7 and the second slide plate 10 slide smoothly along a straight line, ensuring that the spring 11 is evenly stressed, and improving the stability and reliability of the pressure relief mechanism. A dustproof ring 21 is fitted on the tank body 3, which can effectively block dust and other impurities in the surrounding environment from entering the tank body 3, avoiding the accumulation of impurities that affect the normal sliding and sealing performance of the internal components of the pressure relief mechanism, reducing wear and the probability of failure, and improving the stability and reliability of equipment operation.

[0025] It should also be noted that the vent valve 1 includes a spherical shell 13, on which two fixed pipes 14 are connected. One of the fixed pipes 14 is connected to the connecting pipe 2. A cylinder 15 is connected to the spherical shell 13. A rotating rod 16 is rotatably connected inside the cylinder 15. A second knob 17 is fixedly connected to the rotating rod 16. The other end of the rotating rod 16 extends into the spherical shell 13 and is connected to a ball 18. The ball 18 fits into the inner wall of the spherical shell 13. A through vent is opened on the ball 18, which is connected to the two fixed pipes 14. Rotating the second knob 17 can drive the ball 18 to rotate. When the vent is aligned with the two fixed pipes 14, the valve opens to allow gas to flow; when it is not aligned, the valve closes.

[0026] In summary, the working principle and process of the Roots blower vent valve are as follows: First, install the device to the required position via connector 22. Then, adjust the position of the screw 8 by rotating the first knob 9. Rotating the first knob 9 clockwise pushes the screw 8 into the tank 3, compressing the spring 11 and increasing its preload, thus raising the pressure relief threshold. Rotating the first knob 9 counterclockwise reduces the preload of the spring 11, decreasing the pressure relief threshold. When the pressure in the pipeline abnormally rises above the preset pressure relief threshold, gas enters the tank 3, pushing the rubber sealing block 5, connecting block 6, and first sliding plate 7 to overcome the preload of the spring 11. The spring 11 is compressed, and the gas is discharged from the exhaust port 12 on the tank 3, achieving pressure relief.

[0027] The above embodiments merely illustrate specific implementations of this utility model, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of this utility model patent. It should be noted that those skilled in the art can make several modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model.

Claims

1. A Roots blower vent valve, comprising a vent valve (1), characterized in that: The vent valve (1) is connected to a connecting pipe (2), and also includes: The pressure relief mechanism includes a tank (3) connected to the connecting pipe (2). A fixed cover (4) is fixedly connected to the inner wall of the tank (3). A rubber sealing block (5) is provided inside the fixed cover (4). The rubber sealing block (5) cooperates with the fixed cover (4). A connecting block (6) is fixedly connected to the rubber sealing block (5). A first sliding plate (7) is fixedly connected to the connecting block (6). The first sliding plate (7) is slidably connected to the inner wall of the tank (3). A threaded hole is provided on the tank (3). A screw (8) is threadedly connected to the threaded hole. A first knob (9) is connected to the screw (8). The other end of the screw (8) extends into the tank (3) and is rotatably connected to a second sliding plate (10). Multiple springs (11) are connected between the second sliding plate (10) and the first sliding plate (7). Multiple exhaust ports (12) are provided on the tank (3).

2. The Roots blower vent valve according to claim 1, characterized in that: The vent valve (1) includes a spherical shell (13), on which two fixed pipes (14) are connected. One of the fixed pipes (14) is connected to the connecting pipe (2). A cylinder (15) is connected to the spherical shell (13). A rotating rod (16) is rotatably connected inside the cylinder (15). A second knob (17) is fixedly connected to the rotating rod (16). The other end of the rotating rod (16) extends into the spherical shell (13) and is connected to a ball (18). The ball (18) fits into the inner wall of the spherical shell (13). A through vent is opened on the ball (18), and the vent is connected to the two fixed pipes (14).

3. The Roots blower vent valve according to claim 2, characterized in that: A pressure gauge (19) is installed on the connecting pipe (2).

4. The Roots blower vent valve according to claim 3, characterized in that: The second slide plate (10) has multiple guide holes, and a guide rod (20) is slidably connected in the guide holes. One end of the guide rod (20) passes through a spring (11) and is fixedly connected to the first slide plate (7).

5. The Roots blower vent valve according to claim 4, characterized in that: A dust-proof ring (21) is fitted on the tank body (3).

6. The Roots blower vent valve according to claim 5, characterized in that: A connector (22) is connected to the connecting pipe (2).

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