A low noise gas pressure regulator

Abstract

The utility model discloses a low-noise gas pressure regulator, comprising an installation box, an inner cover is installed inside the installation box, a pressure regulating valve body is arranged inside the inner cover, an input pipe is arranged at the input end of the pressure regulating valve body, an output pipe is arranged at the output end of the pressure regulating valve body, a rubber block is connected to the bottom of the pressure regulating valve body, a bottom shell is arranged at the bottom of the rubber block, a sound insulation cover plate is hinged on one side of the installation box, a sound absorbing cotton plate is installed on the inner side of the sound insulation cover plate, a sponge clamping frame is connected to the surface of the inner wall of the installation box, a sound transmission cavity is arranged between the sponge clamping frame and the inner cover, polyester fiber sound absorbing plates are installed on both sides of the sound transmission cavity, a rubber plate is arranged in the middle of the inner wall of the bottom shell, a plurality of spring dampers are installed at the bottom of the rubber plate, pipeline anti-vibration mechanisms are arranged at the connection between the input pipe and the installation box and at the connection between the output pipe and the installation box. The utility model discloses a low-noise gas pressure regulator, the noise of the whole gas pressure regulator is greatly reduced, and the noise pollution is reduced.

Description

Technical Field

[0001] The utility model relates to the field of gas pressure regulators, in particular to a low-noise gas pressure regulator. Background Art

[0002] With the popularization of gas applications, gas pressure regulators, as an important part of the gas supply system, are receiving more and more attention for their safety and stability. Gas pressure regulators generally refer to gas pressure regulating valves. Gas pressure regulating valves are devices that use straight-rod and lever-type differential pressure feedback to control pressure regulation. During the use of gas pressure regulators, when gas passes through the pressure reducing valve, it is subject to the air, gas and other media between the shell and the pressure reducing valve, which can easily cause violent oscillations and resonances, thereby generating noise. In particular, when high-speed gas flows through the compression throttling device, a large number of vortices and waves will be formed, which intensifies the generation of noise and easily causes noise pollution to the outside world. Utility Model Content

[0003] The purpose of the utility model is to provide a low-noise gas pressure regulator to solve the problems raised in the above background technology.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a low-noise gas pressure regulator, comprising an installation box, an inner cover is installed inside the installation box, a pressure regulating valve body is arranged inside the inner cover, an input pipe is arranged at the input end of the pressure regulating valve body, an output pipe is arranged at the output end of the pressure regulating valve body, a rubber block is connected to the bottom of the pressure regulating valve body, a bottom shell is arranged at the bottom of the rubber block, a sound insulation cover is hinged on one side of the installation box, a sound absorbing cotton board is installed on the inner side of the sound insulation cover, a sponge clamping frame is connected to the surface of the inner wall of the installation box, a sound transmission cavity is arranged between the sponge clamping frame and the inner cover, polyester fiber sound absorbing boards are installed on both sides of the sound transmission cavity, a rubber plate is arranged in the middle of the inner wall of the bottom shell, a plurality of spring dampers are installed at the bottom of the rubber plate, a pipeline anti-seismic mechanism is arranged at the connection between the input pipe and the installation box and at the connection between the output pipe and the installation box, and the pipeline anti-seismic mechanism comprises a soft rubber block and a rubber-plastic plate connected to both sides of the soft rubber block.

[0005] Preferably, the sound insulation cover plate matches the front side of the installation box, and a rain shield is connected to the top of the installation box, which is used to block rain during use in the external environment. A sealing gasket is provided at the connection between the sound insulation cover plate and the installation box, and pressure gauges are provided on one side of the input pipe and one side of the output pipe, and the bottom of the input pipe and the bottom of the output pipe extend to the outside of the installation box.

[0006] Preferably, both sides of the back side of the installation box are fixedly connected with fixing plates, a fixing hole is provided in the middle of the fixing plate, the fixing plate and the fixing hole facilitate the installation and fixation of the installation box, the bottom of the rubber block is connected to the top of the rubber plate, the bottom of the spring damper is connected to the bottom of the inner wall of the bottom shell, and the bottom shell is connected to the bottom of the inner wall of the installation box.

[0007] Preferably, a plurality of the spring dampers are equidistantly distributed, both ends of the spring dampers are connected with gaskets, the spring dampers are located between the rubber plate and the bottom shell, and the spring dampers indirectly provide shock absorption treatment to the bottom of the pressure regulating valve body.

[0008] Preferably, a pipe groove is provided in the middle of the rubber-plastic plate and the middle of the soft rubber block, and the input pipe and the output pipe are matched with the pipe groove. The pipe groove facilitates the input pipe and the output pipe to extend to the outside, and the two rubber-plastic plates are respectively located at the bottom of the inner wall of the installation box and the bottom of the outer wall of the installation box.

[0009] Compared with the prior art, the beneficial effects of the utility model are:

[0010] The noise generated by the pressure regulating valve body during use can be effectively absorbed and isolated. Specifically, when the noise generated by the pressure regulating valve body is transmitted outward through the inner cover, part of it will be absorbed by the polyester fiber sound-absorbing board through the sound transmission cavity, and then it will be absorbed by the sponge clip frame. The installation box can also prevent some noise from being transmitted to the outside. The sound-absorbing cotton board on the inside of the sound insulation cover can improve the sound insulation effect of the sound insulation cover. Through multiple isolation and absorption of noise, the pressure regulating valve body can work in a low-noise state;

[0011] A rubber block is connected to the bottom of the pressure regulating valve body, a rubber plate is connected to the bottom of the rubber block and a number of spring dampers are arranged. The rubber block, rubber plate and spring damper can perform shock-absorbing treatment on the bottom of the pressure regulating valve body, thereby reducing the noise generated by vibration at the bottom of the pressure regulating valve body. A pipeline anti-vibration mechanism is arranged at the connection between the input pipe, the output pipe and the installation box, thereby reducing the noise generated by vibration at the pipeline connection, thereby reducing the noise generated. The noise during the use of the entire gas pressure regulator is greatly reduced, thereby reducing the noise pollution to the surrounding environment. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a schematic diagram of the structure of the utility model;

[0013] Figure 2 This is a diagram of the inner connection structure of the installation box of the utility model;

[0014] Figure 3 This is a structural diagram of the connection between the rubber block and the bottom shell of the utility model;

[0015] Figure 4 This is a structural diagram of the pipeline anti-seismic mechanism of the utility model.

[0016] In the figure: 1. Installation box; 2. Inner cover; 3. Pressure regulating valve body; 4. Inlet pipe; 5. Output pipe; 6. Rubber block; 7. Bottom shell; 8. Pipe anti-seismic mechanism; 9. Sound insulation cover; 10. Sound-absorbing cotton board; 11. Rain shield; 12. Fixing plate; 13. Fixing hole; 14. Pressure gauge; 15. Sponge clamp frame; 16. Sound transmission cavity; 17. Polyester fiber sound-absorbing board; 18. Rubber plate; 19. Spring damper; 20. Gasket; 21. Rubber-plastic board; 22. Soft rubber block; 23. Pipe groove. DETAILED DESCRIPTION

[0017] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0018] See also Figure 1-4 The utility model provides a low-noise gas pressure regulator, including an installation box 1, an inner cover 2 is installed inside the installation box 1, a pressure regulating valve body 3 is arranged inside the inner cover 2, an input end of the pressure regulating valve body 3 is provided with an input pipe 4, an output end of the pressure regulating valve body 3 is provided with an output pipe 5, a rubber block 6 is connected to the bottom of the pressure regulating valve body 3, a bottom shell 7 is arranged at the bottom of the rubber block 6, a sound insulation cover plate 9 is hingedly connected to one side of the installation box 1, a sound absorbing cotton board 10 is installed on the inner side of the sound insulation cover plate 9, and the surface of the inner wall of the installation box 1 A sponge clamp frame 15 is connected to the surface, a sound transmission cavity 16 is provided between the sponge clamp frame 15 and the inner cover 2, polyester fiber sound absorbing panels 17 are installed on both sides of the sound transmission cavity 16, a rubber plate 18 is provided in the middle of the inner wall of the bottom shell 7, and a plurality of spring dampers 19 are installed at the bottom of the rubber plate 18. The connection between the input pipe 4 and the installation box 1 and the connection between the output pipe 5 and the installation box 1 are provided with a pipeline anti-vibration mechanism 8, and the pipeline anti-vibration mechanism 8 includes a soft rubber block 22 and a rubber-plastic plate 21 connected to both sides of the soft rubber block 22;

[0019] In this embodiment, during use, the pressure regulating valve body 3 is installed inside the inner cover 2 on the inner side of the installation box 1, and the sound insulation cover 9 is closed. A sealing gasket is provided at the connection between the sound insulation cover 9 and the installation box 1. The noise generated by the pressure regulating valve body 3 during use can be effectively absorbed and isolated. Specifically, when the noise generated by the pressure regulating valve body 3 is transmitted outward through the inner cover 2, a part of it will be absorbed by the polyester fiber sound-absorbing board 17 through the sound transmission cavity 16, and then it will be blocked and absorbed by the sponge clamp frame 15. The installation box 1 can also prevent some noise from propagating to the outside. The sound-absorbing cotton board 10 on the inside of the sound insulation cover 9 can improve the sound insulation effect of the sound insulation cover 9 and isolate and absorb noise through multiple steps.

[0020] See also Figure 1-4The soundproof cover plate 9 matches the front of the installation box 1, the top of the installation box 1 is connected with a rain shield 11, one side of the input pipe 4 and one side of the output pipe 5 are provided with a pressure gauge 14, the bottom of the input pipe 4 and the bottom of the output pipe 5 are extended to the outside of the installation box 1, and the two sides of the back of the installation box 1 are fixedly connected with a fixing plate 12, and a fixing hole 13 is provided in the middle of the fixing plate 12;

[0021] In this embodiment, the gas enters through the input pipe 4 and is discharged through the output pipe 5. The sound insulation cover 9 is opened and the pressure regulating valve body 3 is adjusted to adjust the gas pressure. The pressure gauge 14 is used to observe the pressure conditions of the gas inside the input pipe 4 and the output pipe 5.

[0022] See also Figure 1-4 , the bottom of the rubber block 6 is connected to the top of the rubber plate 18, the bottom of the spring damper 19 is connected to the bottom of the inner wall of the bottom shell 7, the bottom shell 7 is connected to the bottom of the inner wall of the installation box 1, a plurality of spring dampers 19 are equidistantly distributed, both ends of the spring damper 19 are connected with gaskets 20, the spring damper 19 is located between the rubber plate 18 and the bottom shell 7, the middle of the rubber-plastic plate 21 and the middle of the soft rubber block 22 are provided with a pipe groove 23, the input pipe 4 and the output pipe 5 are matched with the pipe groove 23, and the two rubber-plastic plates 21 are respectively located at the bottom of the inner wall of the installation box 1 and the bottom of the outer wall of the installation box 1;

[0023] In this embodiment, the bottom of the pressure regulating valve body 3 is connected to a rubber block 6, the bottom of the rubber block 6 is connected to a rubber plate 18 and a plurality of spring dampers 19 are provided, the rubber block 6, the rubber plate 18 and the spring dampers 19 can perform vibration reduction treatment on the bottom of the pressure regulating valve body 3, and reduce the noise generated by vibration at the bottom of the pressure regulating valve body 3, and the connection between the input pipe 4 and the output pipe 5 and the installation box 1 is sleeved with a pipeline anti-vibration mechanism 8, which can reduce the noise generated by vibration at the pipeline connection.

[0024] During specific use, the utility model provides a low-noise gas pressure regulator. During use, the pressure regulating valve body 3 is installed inside the inner cover 2 on the inner side of the installation box 1, and the sound insulation cover 9 is closed. The noise generated by the pressure regulating valve body 3 during use can be effectively absorbed and isolated. Specifically, when the noise generated by the pressure regulating valve body 3 is transmitted outward through the inner cover 2, it will be partially absorbed by the polyester fiber sound-absorbing board 17 through the sound transmission cavity 16, and then it will be blocked and absorbed by the sponge clamp frame 15. The installation box 1 can also prevent some noise from being transmitted to the outside. The sound-absorbing cotton board 10 on the inner side of the sound insulation cover 9 can improve the sound insulation effect of the sound insulation cover 9. Through multiple isolation and absorption of noise , which can make the pressure regulating valve body 3 work in a low-noise state, and the bottom of the pressure regulating valve body 3 is connected to a rubber block 6, the bottom of the rubber block 6 is connected to a rubber plate 18 and a plurality of spring dampers 19 are arranged, the rubber block 6, the rubber plate 18 and the spring damper 19 can perform shock-absorbing treatment on the bottom of the pressure regulating valve body 3, and reduce the noise generated by the vibration of the bottom of the pressure regulating valve body 3, and the connection between the input pipe 4 and the output pipe 5 and the installation box 1 is sleeved with a pipeline anti-vibration mechanism 8, which can reduce the noise generated by the vibration of the pipeline connection, reduce the generation of noise, and greatly reduce the noise during the use of the entire gas pressure regulator, reducing the noise pollution to the surrounding environment.

[0025] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art may still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

Claims

1. A low-noise gas pressure regulator, comprising a mounting box (1), characterized in that: An inner cover (2) is installed inside the installation box (1), a pressure regulating valve body (3) is provided inside the inner cover (2), an input pipe (4) is provided at the input end of the pressure regulating valve body (3), an output pipe (5) is provided at the output end of the pressure regulating valve body (3), a rubber block (6) is connected to the bottom of the pressure regulating valve body (3), a bottom shell (7) is provided at the bottom of the rubber block (6), a sound insulation cover plate (9) is hingedly connected to one side of the installation box (1), a sound absorbing cotton board (10) is installed on the inner side of the sound insulation cover plate (9), and a sponge clamp frame (15) is connected to the surface of the inner wall of the installation box (1), A sound transmission cavity (16) is provided between the sponge clamp frame (15) and the inner cover (2), and polyester fiber sound absorbing panels (17) are installed on both sides of the sound transmission cavity (16). A rubber plate (18) is provided in the middle of the inner wall of the bottom shell (7), and a plurality of spring dampers (19) are installed at the bottom of the rubber plate (18). A pipeline anti-vibration mechanism (8) is provided at the connection between the input pipe (4) and the installation box (1) and at the connection between the output pipe (5) and the installation box (1), and the pipeline anti-vibration mechanism (8) comprises a soft rubber block (22) and a rubber-plastic plate (21) connected to both sides of the soft rubber block (22).

2. A low noise gas pressure regulator according to claim 1, characterized in that: The soundproof cover plate (9) matches the front of the installation box (1), the top of the installation box (1) is connected to a rain shield (11), and a sealing gasket is provided at the connection between the soundproof cover plate (9) and the installation box (1).

3. A low noise gas pressure regulator according to claim 1, characterized in that: A pressure gauge (14) is provided on one side of the input pipe (4) and one side of the output pipe (5), and the bottom of the input pipe (4) and the bottom of the output pipe (5) extend to the outside of the installation box (1).

4. A low noise gas pressure regulator according to claim 1, characterized in that: Both sides of the back side of the installation box (1) are fixedly connected with fixing plates (12), and a fixing hole (13) is provided in the middle of the fixing plate (12).

5. A low noise gas pressure regulator according to claim 1, characterized in that: The bottom of the rubber block (6) is connected to the top of the rubber plate (18), the bottom of the spring damper (19) is connected to the bottom of the inner wall of the bottom shell (7), and the bottom shell (7) is connected to the bottom of the inner wall of the installation box (1).

6. A low noise gas pressure regulator according to claim 1, characterized in that: A plurality of the spring dampers (19) are distributed at equal distances, both ends of the spring dampers (19) are connected with gaskets (20), and the spring dampers (19) are located between the rubber plate (18) and the bottom shell (7).

7. A low noise gas pressure regulator according to claim 1, characterized in that: A pipe groove (23) is provided in the middle of the rubber-plastic plate (21) and the middle of the soft rubber block (22), and the input pipe (4) and the output pipe (5) are matched with the pipe groove (23). The two rubber-plastic plates (21) are respectively located at the bottom of the inner wall of the installation box (1) and the bottom of the outer wall of the installation box (1).

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