Noise reduction safety valve

Abstract

The utility model discloses a noise reduction safety valve, which belongs to the technical field of safety valves and comprises a valve body, a valve seat is fixedly mounted at the bottom end of the valve body, a release pipe is fixedly connected to one side of the valve body, and an inlet pipe is fixedly mounted on one side of the release pipe. A noise reduction structure used for conducting noise reduction and silencing on pressure relief airflow is fixedly installed at one end of the inlet pipe, an air outlet pipe is fixedly installed at the bottom end of the noise reduction structure, and a filtering structure used for conducting filtering and dust removal on flowing-out air is fixedly installed at the bottom end of the air outlet pipe. The air flow flowing pressure is weakened through the penetrating holes in the partition plate, air fluctuation and noise are reduced, pollution to the surrounding environment is avoided, normal life and work of people are maintained, the life quality and the work efficiency are improved, meanwhile, the cleaning brush is installed to clean the partition plate, particle impurities are prevented from blocking the penetrating holes, and the service life is prolonged. And normal circulation of gas in the silencing pipe is guaranteed, and the lasting and stable noise reduction effect is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of safety valves, in particular to a noise-reducing safety valve. Background Art

[0002] A safety valve is a safety protection device that is mainly used to automatically release pressure when the internal medium pressure of equipment or pipelines exceeds the specified value, thereby protecting the safety of equipment and personnel.

[0003] A Chinese patent discloses a noise reduction safety valve (Announcement No. CN 219734405

[0004] U), this patent includes a safety valve body, one side of the safety valve body is fixedly connected with a connecting pipe, the end of the connecting pipe away from the safety valve body is installed with a protective cylinder, the side of the protective cylinder is installed with a motor, the arc surface of the protective cylinder is provided with a plurality of exhaust holes, the arc surface of the protective cylinder is provided with an adjustment structure, the adjustment structure includes a welding ring, the welding ring is fixedly connected to the protective cylinder, the upper surface of the welding ring is fixedly connected with a motor, the output end of the motor is fixedly connected with an adjustment rod, the arc surface of the adjustment rod is threaded with an adjustment ring, the inner wall of the adjustment ring is fixedly connected with cleaning cotton, the cleaning cotton is fitted with the protective cylinder, but the patent lacks a noise reduction structure, a large amount of noise may be generated during the pressure relief process of the safety valve, and the untreated noise may exceed the specified noise limit, pollute the surrounding environment, interfere with people's normal life and work, and reduce the quality of life and work efficiency. Utility Model Content

[0005] The purpose of the utility model is to provide a noise reduction safety valve to solve the problems raised in the above background technology.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] A noise reduction safety valve, comprising a valve body, a valve seat fixedly mounted at the bottom end of the valve body, a release pipe fixedly connected to one side of the valve body, an inlet pipe fixedly mounted on one side of the release pipe, a noise reduction structure for reducing noise and silencing a pressure relief airflow fixedly mounted at one end of the inlet pipe, an outlet pipe fixedly mounted at the bottom end of the noise reduction structure, and a filter structure for filtering and removing dust from outflowing gas fixedly mounted at the bottom end of the outlet pipe;

[0008] The noise reduction structure includes a silencer pipe, two groups of partitions are fixedly installed inside the silencer pipe, the inner cavity of the silencer pipe is divided into silencer chamber one, silencer chamber two and silencer chamber three by the two groups of partitions, and a cleaning structure for cleaning the surface of the partition is fixedly installed in the gap between the two groups of partitions.

[0009] As a further solution of the utility model, an inner tube is fixedly installed in the inner cavity of the silencing chamber, a plurality of groups of silencing holes are opened on the outer wall of the inner tube, and a sound-absorbing cotton with noise reduction effect is fixedly sleeved on the outer surface of the inner tube.

[0010] As a further solution of the utility model, a noise reduction plate for sound absorption is fixedly installed on the inner wall of the silencer pipe, and a refraction plate for reflecting sound waves is fixedly installed in the gap between the two groups of partitions.

[0011] As a further solution of the utility model, the cleaning structure includes a rotating shaft, and the outer wall of the rotating shaft is fixedly sleeved with rotating fan blades for providing rotational driving force. Cleaning brushes for cleaning the partition are fixedly installed at both ends of the rotating shaft, and the cleaning brushes are in contact with the outer surface of the partition.

[0012] As a further solution of the utility model, the filtering structure includes a filtering tube, a filtering plate for filtering the depressurized gas is installed inside the filtering tube, and a plurality of groups of degassing holes are provided on the outer wall of the filtering tube.

[0013] As a further solution of the utility model, a fixing block for installing a filter plate is fixedly installed on the inner wall of the filter tube, and there are two filter plates in total and they are respectively inserted into the inside of the fixing block.

[0014] Compared with the prior art, the beneficial effects of the utility model are:

[0015] 1. When the utility model is used, a noise reduction structure is set up, and the sound-absorbing cotton is used to effectively absorb noise. The pressure of the air flow is weakened through the perforations on the partition, gas fluctuations and noise are reduced, the impact of noise is reduced, and pollution to the surrounding environment is avoided. People's normal life and work are maintained, and the quality of life and work efficiency are improved. At the same time, a cleaning brush is installed to clean the partition to prevent particulate impurities from clogging the perforations, thereby ensuring the normal circulation of gas in the silencer and ensuring the lasting and stable noise reduction effect.

[0016] 2. When the utility model is used, the pressure relief gas is filtered by setting a filtering structure, which can effectively capture and intercept particulate matter and impurities in the gas, reduce harmful gas emissions, and protect the cleanliness of the surrounding environment and the air quality. At the same time, a rotary hook and a limit block are installed to facilitate opening the filter tube and effectively clean the dust inside the filter tube to prevent the accumulation of a large amount of dust that may affect the use effect of the device and cause clogging, thereby enhancing the service life of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 The figure is a schematic diagram of the overall structure of a noise reduction safety valve.

[0018] Figure 2 It is a cross-sectional view of a noise reduction structure in a noise reduction safety valve.

[0019] Figure 3 This is a distribution diagram of the interior of a silencer pipe in a noise reduction safety valve.

[0020] Figure 4 The figure is a structural diagram of a cleaning structure in a noise reduction safety valve.

[0021] Figure 5 The figure is a structural diagram of a filtering structure in a noise reduction safety valve.

[0022] Figure 6 A cross-sectional view of a filter structure in a noise reduction safety valve.

[0023] In the figure: 1. valve body; 2. valve seat; 3. release pipe; 4. inlet pipe; 5. noise reduction structure; 501. silencer pipe; 502. partition; 503. silencer chamber one; 504. silencer chamber two; 505. silencer chamber three; 506. perforation; 507. inner pipe; 508. silencer hole; 509. sound-absorbing cotton; 510. noise reduction plate; 511. refraction plate; 512. rotating shaft; 513. rotating fan blade; 514. cleaning brush; 515. positioning block; 516. positioning sleeve; 517. rotating block; 6. outlet pipe; 7. filtering structure; 701. filter pipe; 702. filter plate; 703. bleed hole; 704. fixing block; 705. rotary hook; 706. limit buckle. DETAILED DESCRIPTION

[0024] 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.

[0025] Example 1: Please refer to Figure 1 - Figure 4 A noise reduction safety valve comprises a valve body 1, a valve seat 2 is fixedly installed at the bottom end of the valve body 1, a release pipe 3 is fixedly connected to one side of the valve body 1, an inlet pipe 4 is fixedly installed on one side of the release pipe 3, a noise reduction structure 5 for reducing noise and silencing the pressure relief airflow is fixedly installed at one end of the inlet pipe 4, an outlet pipe 6 is fixedly installed at the bottom end of the noise reduction structure 5, and a filter structure 7 for filtering and removing dust from the outflowing gas is fixedly installed at the bottom end of the outlet pipe 6;

[0026] The noise reduction structure 5 includes a silencer pipe 501, two groups of partitions 502 are fixedly installed inside the silencer pipe 501, and the inner cavity of the silencer pipe 501 is divided into a silencer chamber 1 503, a silencer chamber 2 504 and a silencer chamber 3 505 by the two groups of partitions 502, and a cleaning structure for cleaning the surface of the partition 502 is fixedly installed in the gap between the two groups of partitions 502; specifically, one end of the silencer pipe 501 is fixedly connected to the release pipe 3, and the top surface of the silencer pipe 501 is fixedly connected to the outlet pipe 6, and multiple groups of through holes 506 for gas circulation are opened inside the two groups of partitions 502;

[0027] An inner tube 507 is fixedly installed in the inner cavity of the first silencing chamber 503, and a plurality of groups of silencing holes 508 are provided on the outer wall of the inner tube 507. A sound-absorbing cotton 509 with noise reduction effect is fixedly sleeved on the outer surface of the inner tube 507. One end of the inner tube 507 is fixedly connected to the release tube 3, and the other end thereof passes through a group of partitions 502 and communicates with the second silencing chamber 504.

[0028] A noise reduction plate 510 for sound absorption is fixedly installed on the inner wall of the silencer pipe 501, and a refraction plate 511 for reflecting sound waves is fixedly installed in the gap between the two groups of partitions 502;

[0029] The cleaning structure includes a rotating shaft 512, which is fixedly installed inside the two groups of partitions 502 through bearings at both ends. The outer wall of the rotating shaft 512 is fixedly sleeved with a rotating fan blade 513 for providing a rotation driving force. Cleaning brushes 514 for cleaning the partitions 502 are fixedly installed at both ends of the rotating shaft 512, and the cleaning brushes 514 are in contact with the outer surface of the partitions 502.

[0030] The silencer 501 is composed of two parts, an upper part and an lower part, which are hinged to each other to facilitate opening the silencer 501 to remove internal impurities. A positioning block 515 is fixedly installed on the outer wall of the upper silencer 501, and a positioning sleeve 516 is provided on the outer sleeve of the positioning block 515. The positioning sleeve 516 is rotatably connected to a rotating block 517, and the rotating block 517 is rotatably installed on the outer surface of the lower silencer 501.

[0031] Example 2: Please refer to Figure 1 , Figure 5 - Figure 6 The filter structure 7 includes a filter tube 701, a filter plate 702 for filtering the decompression gas is detachably installed inside the filter tube 701, a plurality of gas leakage holes 703 are provided on the outer wall of the filter tube 701, and the bottom end of the filter tube 701 is fixedly connected to the top end of the gas outlet pipe 6;

[0032] The inner wall of the filter tube 701 is fixedly installed with a fixing block 704 for installing the filter plate 702. There are two filter plates 702 in total and they are respectively inserted into the inside of the fixing block 704. The filter tube 701 is arranged in two parts, and the two parts are hinged to each other to facilitate opening the filter tube 701 to replace the filter plate 702. The outer walls of the two parts of the filter tube 701 are respectively fixedly installed with a limiting buckle 706 and a rotatable hook 705. By inserting the rotatable hook 705 into the limiting buckle 706, the two parts of the filter tube 701 are fixedly connected.

[0033] The working principle of the utility model is:

[0034] First, high-pressure gas passes through the valve body 1, and then passes through the release pipe 3 and the inlet pipe 4 to flow into the muffler pipe 501. The gas passes through the inner pipe 507 and the muffler hole 508 to penetrate part of the sound waves, and the sound-absorbing cotton 509 absorbs the sound to eliminate part of the noise. Then, the gas enters the muffler chamber 2 504, and the refraction plate 511 is used to reflect the sound waves, so that the sound waves pass through the perforation 506 on the partition 502, and repeatedly shuttle between the muffler chamber 1 503, the muffler chamber 2 504 and the muffler chamber 3 505 to reflect and rub against each other, thereby effectively achieving noise reduction. At the same time, the airflow drives the rotating fan blades. 513 rotates, and then the connecting shaft 512 drives the cleaning brush 514 to rotate accordingly to clean the perforation 506, and the flip rotating block 517 drives the positioning sleeve 516 to separate from the positioning block 515, and opens the upper end silencer 501 to clean the impurities inside it, and then discharges it into the filter tube 701 from the outlet pipe 6, passes through the two sets of filter plates 702 for filtering, and finally discharges it from the vent hole 703. When the filter plate 702 needs to be cleaned or replaced, the flip rotary hook 705 is separated from the limit buckle 706, and the filter tube 701 is opened to replace the filter plate 702.

[0035] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A noise reduction safety valve, comprising a valve body (1), characterized in that: A valve seat (2) is fixedly mounted on the bottom end of the valve body (1); a release pipe (3) is fixedly connected to one side of the valve body (1); an inlet pipe (4) is fixedly mounted on one side of the release pipe (3); a noise reduction structure (5) for reducing noise and silencing the decompression airflow is fixedly mounted on one end of the inlet pipe (4); an outlet pipe (6) is fixedly mounted on the bottom end of the noise reduction structure (5); a filter structure (7) for filtering and removing dust from the outflowing gas is fixedly mounted on the bottom end of the outlet pipe (6); The noise reduction structure (5) comprises a silencer pipe (501), two groups of partitions (502) are fixedly installed inside the silencer pipe (501), the inner cavity of the silencer pipe (501) is divided into silencer chamber 1 (503), silencer chamber 2 (504) and silencer chamber 3 (505) by the two groups of partitions (502), and a cleaning structure for cleaning the surface of the partition (502) is fixedly installed in the gap between the two groups of partitions (502).

2. A noise reduction safety valve according to claim 1, characterized in that: An inner tube (507) is fixedly installed in the inner cavity of the first silencing chamber (503), and a plurality of groups of silencing holes (508) are provided on the outer wall of the inner tube (507). A sound-absorbing cotton (509) with a noise reduction effect is fixedly sleeved on the outer surface of the inner tube (507).

3. A noise reduction safety valve according to claim 1, characterized in that: A noise reduction plate (510) for sound absorption is fixedly installed on the inner wall of the silencer pipe (501), and a refraction plate (511) for reflecting sound waves is fixedly installed in the gap between the two groups of partitions (502).

4. A noise reduction safety valve according to claim 1, characterized in that: The cleaning structure comprises a rotating shaft (512), the outer wall of the rotating shaft (512) is fixedly sleeved with a rotating blade (513) for providing a rotational driving force, and cleaning brushes (514) for cleaning the partition (502) are fixedly mounted at both ends of the rotating shaft (512), and the cleaning brushes (514) are in contact with the outer surface of the partition (502).

5. A noise reduction safety valve according to claim 1, characterized in that: The filtering structure (7) comprises a filtering tube (701), a filtering plate (702) for filtering the depressurized gas being installed inside the filtering tube (701), and a plurality of groups of degassing holes (703) being provided on the outer wall of the filtering tube (701).

6. A noise reduction safety valve according to claim 5, characterized in that: A fixing block (704) for mounting a filter plate (702) is fixedly mounted on the inner wall of the filter tube (701), and two filter plates (702) are provided in total and are respectively plugged into the interior of the fixing block (704).

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