Environment-friendly low-noise valve

Abstract

The utility model relates to the technical field of controller auxiliary equipment, in particular to an environment-friendly low-noise valve, which adopts the technical scheme that the environment-friendly low-noise valve comprises a central pipe and a valve component, and a spherical groove is formed in the central pipe. The sealing cover is arranged in the valve assembly, the sealing cover is in contact with the inner wall of the center pipe, and a large gap is reserved between the sealing cover and the center disc, so that liquid can be conveyed through the gap between the center disc and the sealing cover, and in the conveying process, the sealing cover is not prone to falling off. The side, making contact with liquid, of the center disc and the sides, making contact with the liquid, of the sealing covers are flat surfaces, so that resistance applied to the liquid by components in the valve is reduced, the probability that the cavitation effect occurs in the valve is reduced, and the effect of reducing the noise of the valve is achieved; the sealing cover with the sound insulation pad is attached to the center pipe, the overall thickness of the valve is increased, and the noise transmission efficiency of the valve is further reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of controller auxiliary equipment, in particular to an environmentally friendly low-noise valve. Background Art

[0002] With the acceleration of industrialization, valves have been widely used in various fluid control systems. Traditional valves often face the problem of noise pollution during use, especially under high pressure difference, large flow and complex working conditions. The noise problem is particularly prominent, affecting the stability of the equipment and increasing the overall maintenance cost of the fluid control system. Therefore, we propose an environmentally friendly low-noise valve.

[0003] The prior art also has the following defects during use:

[0004] When a valve in the prior art transmits fluid inside a pipeline, the diameter of the central control portion of the valve is different from that of the transmission pipeline. This causes the flow rate of the fluid to change as it passes through the valve, leading to cavitation. This cavitation effect causes a large number of bubbles to form inside the fluid, generating noise. For valves with thinner walls, the noise suppression effect on the internally generated noise is weak, which can easily affect the surrounding environment.

[0005] The sealing performance of valves in the existing technology is not ideal. The sealing performance of traditional valves mainly relies on a large number of elastic rubber parts for sealing. The elastic rubber parts will accelerate aging when the valve is subjected to liquid pressure for a long time. In addition, when the valve body is working, the elastic rubber parts will rub against the hard inner wall, further accelerating the wear of the rubber parts, reducing the overall sealing effect of the valve and shortening the service life of the valve.

[0006] In view of this, we propose an environmentally friendly low-noise valve to solve the existing problem. Utility Model Content

[0007] The purpose of the present utility model is to provide an environmentally friendly low-noise valve to solve the problems raised in the above background technology.

[0008] To achieve the above-mentioned object, the present invention provides the following technical solution: an environmentally friendly low-noise valve, comprising a central tube and a valve assembly, wherein a spherical groove is formed inside the central tube, a first flow guide tube is welded to the left side of the central tube, and a second flow guide tube is welded to the right side of the central tube;

[0009] A valve assembly is rotatably mounted inside the central tube, the valve assembly comprising a central disk, a connecting shaft welded to the top of the central disk, two sets of spring leaves fixedly mounted on the side of the central disk, a sealing cover fixedly mounted on one side of the spring leaves, and a sound insulation pad fixedly mounted on the inner side of the sealing cover;

[0010] One end of the connecting shaft away from the center disk extends out of a center tube which is equipped with a knob.

[0011] Preferably, a limiting shaft is provided at the bottom of the center disk, and the limiting shaft is engaged with the inner wall of the center tube, and a plurality of sound-absorbing holes are opened inside the sound insulation pad.

[0012] Preferably, flanges are welded to the ends of the first and second flow guide tubes away from the central tube, and sealing rings are clamped and installed inside the flanges.

[0013] Preferably, six threaded holes are opened inside the flange, and fixing bolts are installed inside the threaded holes.

[0014] Preferably, a plurality of anti-slip rings are provided on the outer side of the knob, and the diameter of the knob is smaller than the diameter of the central tube.

[0015] Compared with the prior art, the beneficial effects of the present invention are:

[0016] The utility model provides a sealing cover inside the valve assembly, which contacts the inner wall of the center tube through the sealing cover and maintains a large gap between the sealing cover and the center disk, so that liquid can be transmitted through the gap between the center disk and the sealing cover. During the transmission process, the side of the center disk and the side of the sealing cover that the liquid contacts are both flat surfaces, thereby reducing the resistance exerted by the internal components of the valve to the liquid and reducing the probability of cavitation effect inside the valve, so as to achieve the effect of reducing valve noise. At the same time, the thrust exerted by the liquid on the two sealing covers is utilized to make the sealing cover with the sound insulation pad fit with the center tube, thereby increasing the overall thickness of the valve and further reducing the valve's efficiency in transmitting noise.

[0017] The utility model installs sealing covers on both sides of the center disk and connects the sealing covers to the center disk through spring sheets. When the valve is closed, the thrust exerted by the liquid on the sealing covers is used to make the sealing covers exert thrust on the center disk, thereby reducing the gap between the center disk and the inner wall of the center tube, thereby improving the sealing performance of the valve. When the valve is open, the thrust exerted by the liquid on the sealing covers is used to make the two sealing covers fit against the inner wall of the center tube at the same time, thereby increasing the overall thickness of the valve, thereby achieving the purpose of reducing the internal noise of the valve and improving the environmental performance of the valve. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the three-dimensional structure of the utility model;

[0019] Figure 2 This is a schematic diagram of the first three-dimensional cross-sectional structure of the present invention;

[0020] Figure 3This is a schematic diagram of a second three-dimensional cross-sectional structure of the present invention;

[0021] Figure 4 It is a schematic diagram of a partial three-dimensional structure of the utility model;

[0022] Figure 5 This is a schematic diagram of the front external structure of the utility model;

[0023] Figure 6 This is a schematic diagram of the first front cross-sectional structure of the present utility model;

[0024] Figure 7 This is a schematic diagram of the second front cross-sectional structure of the present invention;

[0025] Figure 8 It is a partial front structural schematic diagram of the utility model.

[0026] In the figure: 1. Center tube; 101. Sealing ring; 102. Flange; 103. First flow guide tube; 104. Second flow guide tube; 2. Knob; 201. Anti-slip ring; 3. Valve assembly; 301. Sealing cover; 302. Sound insulation pad; 303. Limiting shaft; 304. Spring sheet; 305. Center disk; 306. Sound-absorbing hole; 307. Connecting shaft. DETAILED DESCRIPTION

[0027] The technical solution of the present invention is further described below with reference to the accompanying drawings and specific embodiments.

[0028] like Figure 1 - Figure 8 As shown, the present invention proposes an environmentally friendly low-noise valve, including a central tube 1 and a valve assembly 3. A spherical groove is opened inside the central tube 1. A first flow guide tube 103 is welded to the left side of the central tube 1, and a second flow guide tube 104 is welded to the right side of the central tube 1. The central tube 1 can provide a mounting position for surrounding components and cooperate with the first flow guide tube 103 and the second flow guide tube 104 to transmit the liquid or gas inside. The first flow guide tube 103 and the second flow guide tube 104 are respectively connected to the transmission pipeline, thereby passing the fluid into the device for transmission. By cooperating with the valve assembly 3, the fluid transmission speed can be regulated and the opening and closing of the entire pipeline can be controlled.

[0029] The valve assembly 3 is rotatably installed inside the central tube 1. The valve assembly 3 includes a central disk 305. A connecting shaft 307 is welded to the top of the central disk 305. Two sets of spring sheets 304 are fixedly installed on the side of the central disk 305. A sealing cover 301 is fixedly installed on one side of the spring sheet 304. A sound insulation pad 302 is fixedly installed on the inner side of the sealing cover 301. The central disk 305 can contact the inner wall of the central tube 1 and can rotate, thereby driving the components on both sides to rotate, so as to cooperate with the central tube 1 to control the opening and closing of the valve. The connecting shaft 307 can be connected to the knob 2, so as to facilitate the rotation of the central disk 305 by rotating the knob 2. 5 is rotated to control the opening and closing of the valve. The spring sheet 304 can elastically connect the center disk 305 with the sealing cover 301. On the one hand, the center disk 305 can drive the sealing cover 301 and the sound insulation pad 302 to rotate when rotating. On the other hand, the sealing cover 301 can be affected by the elastic force and continuously fit with the inner wall of the center tube 1 to improve the sealing performance of the valve. The sealing cover 301 is a disk-shaped object with an arc surface on one side, and the arc surface side faces the inner wall of the center tube 1. The sound insulation pad 302 fixedly installed inside the sealing cover 301 is designed with multiple micropores, which can improve the sealing performance of the valve while improving the sound insulation effect of the valve.

[0030] A central tube 1 extends from one end of the connecting shaft 307 away from the central disk 305 and is equipped with a knob 2. The knob 2 can be rotated manually to facilitate the rotation of the connecting shaft 307, so that the device can be manually switched on and off.

[0031] Furthermore, a limiting shaft 303 is provided at the bottom of the center disk 305, and the limiting shaft 303 is engaged with the inner wall of the center tube 1. A plurality of sound-absorbing holes 306 are provided inside the sound insulation pad 302. The limiting shaft 303 can limit the bottom of the center disk 305 to ensure the installation stability of the center disk 305. The sound-absorbing holes 306 can enhance the sound insulation effect of the sound insulation pad 302, thereby enhancing the overall quietness of the valve.

[0032] Furthermore, a flange 102 is welded to the end of the first guide tube 103 and the second guide tube 104 away from the central tube 1, and a sealing ring 101 is clamped and installed inside the flange 102. The flange 102 can cooperate with the fixing bolts to facilitate the connection of the device to the external pipeline, thereby transmitting the fluid inside the pipeline. The sealing ring 101 can improve the sealing performance at the connection position of the flange 102 to avoid leakage at the joint.

[0033] Furthermore, six threaded holes are opened inside the flange 102, and fixing bolts are installed inside the threaded holes. The fixing bolts can fix the flange 102 to the external pipeline, thereby connecting the device to the pipeline system and controlling the opening and closing of the pipeline.

[0034] Furthermore, a plurality of anti-slip rings 201 are provided on the outside of the knob 2 , and the diameter of the knob 2 is smaller than the diameter of the central tube 1 . The anti-slip rings 201 can increase the friction force on the outside of the knob 2 , thereby facilitating the rotation of the knob 2 .

[0035] Working principle: After connecting the flange 102 to the external pipeline with the fixing bolts, the fluid in the pipeline is passed into the device. By turning the knob 2, the valve assembly 3 is driven to rotate to control the valve opening and closing;

[0036] When the valve is opened, the fluid passes through the gap between the center disk 305 and the sealing cover 301, and exerts a thrust to make the sealing cover 301 fit against the inner wall of the center tube 1. The combination of the sealing cover 301 and the center tube 1 increases the overall thickness of the valve side wall, reduces the propagation efficiency of sound waves inside the valve, and achieves a sound insulation effect.

[0037] When the valve is closed, the fluid faces the sealing cover 301 on one side of the center disk 305. The sealing cover 301 cooperates with the first flow guide tube 103 or the second flow guide tube 104 to close the valve, preventing the fluid from entering the center tube 1. In addition, the sealing cover 301 is subjected to the thrust exerted by the fluid on the center disk 305, so that the center disk 305 is in close contact with the inner wall of the center tube 1, thereby improving the sealing inside the valve.

[0038] The above specific embodiments are only several preferred embodiments of the present invention. Based on the technical solutions of the present invention and the relevant inspirations of the above embodiments, those skilled in the art can make various alternative improvements and combinations to the above specific embodiments.

Claims

1. An environmentally friendly low-noise valve, comprising a central tube (1) and a valve assembly (3), characterized in that: A spherical groove is provided inside the central tube (1), a first flow guide tube (103) is welded to the left side of the central tube (1), and a second flow guide tube (104) is welded to the right side of the central tube (1); A valve assembly (3) is rotatably mounted inside the central tube (1), the valve assembly (3) comprising a central disk (305), a connecting shaft (307) welded to the top of the central disk (305), two sets of spring sheets (304) fixedly mounted on the side of the central disk (305), a sealing cover (301) fixedly mounted on one side of the spring sheet (304), and a sound insulation pad (302) fixedly mounted on the inner side of the sealing cover (301); One end of the connecting shaft (307) away from the center disk (305) extends out of the center tube (1) and is equipped with a knob (2).

2. The environmentally friendly low-noise valve according to claim 1, characterized in that: A limiting shaft (303) is provided at the bottom of the central disk (305), and the limiting shaft (303) is engaged with the inner wall of the central tube (1), and a plurality of sound-absorbing holes (306) are provided inside the sound insulation pad (302).

3. The environmentally friendly low-noise valve according to claim 1, characterized in that: A flange (102) is welded to one end of each of the first flow guide tube (103) and the second flow guide tube (104) away from the central tube (1), and a sealing ring (101) is clamped and installed inside the flange (102).

4. The environmentally friendly low-noise valve according to claim 3, characterized in that: Six threaded holes are provided inside the flange (102), and fixing bolts are installed inside the threaded holes.

5. The environmentally friendly low-noise valve according to claim 1, characterized in that: A plurality of anti-slip rings (201) are provided on the outer side of the knob (2), and the diameter of the knob (2) is smaller than the diameter of the central tube (1).

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