Silencing device for pressure vessel

Abstract

The utility model discloses a pressure vessel silencer relates to pressure vessel silencer technical field, including box body and pressure vessel, box body includes upper part box body and lower part box body, upper part box body and lower part box body are connected, and upper part box body and lower part box body form a hollow area therebetween, a hollow area is arranged in the upper box body, an internal silencing unit is arranged in the hollow area and communicated with the pressure container, the upper box body and the lower box body are filled with silencing cotton, and the outer side of the upper box body is sleeved with a dustproof outer cover. According to the silencing device, inner-stage silencing and outer-stage silencing are adopted, the silencing units made of different materials can be replaced according to different use environments, noise elimination of a pressure removal site of the pressure vessel and oil mist filtration and dust filtration of exhausted gas during pressure removal are effectively achieved, and blockage caused by dust deposition when the silencing device is not used for a long time can be avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of pressure vessel silencing devices, in particular to a pressure vessel silencing device. Background Art

[0002] At present, there are a large number of pressure vessels such as gas storage tanks and oil storage tanks in hydropower stations. When the pressure vessel is overhauled and depressurized, due to the large pressure difference between the pressure vessel and the outside air pressure, strong noise will be generated during depressurization. Noise reduction is required through a silencer. At the same time, the silencer must also have the effect of removing oil mist and dust to meet environmental protection requirements. There are high requirements for the application of silencer materials. Based on this, a pressure vessel silencer is designed, which can be used to reduce on-site noise and speed up the depressurization of the pressure vessel, and can also avoid blockage caused by dust accumulation due to long-term non-use of the silencer. Utility Model Content

[0003] The purpose of the utility model is to overcome the deficiencies of the prior art and provide a pressure vessel silencing device, which adopts internal and external two-stage silencing and can be replaced with silencing units of different materials according to different use environments, effectively achieving the elimination of noise at the pressure vessel depressurization site and the oil mist filtration and dust filtration of the exhaust gas during depressurization, and can also avoid clogging caused by dust accumulation when the silencing device is not used for a long time through a dust-proof outer cover.

[0004] The purpose of the utility model is achieved through the following technical scheme: a pressure vessel silencing device, the device includes a box body and a pressure vessel, the box body includes an upper box body and a lower box body, the upper box body is connected to the lower box body, and a hollow area is formed between the upper box body and the lower box body, an internal silencing unit is arranged inside the hollow area, and the internal silencing unit is connected to the pressure vessel, the upper box body and the lower box body are filled with silencing cotton, and the outer side of the upper box body is covered with a dustproof cover to prevent the silencing device from being blocked due to dust accumulation due to long-term non-use.

[0005] The dustproof outer cover is evenly provided with a plurality of ventilation windows, and a dust shielding plate is arranged on the outer top of the ventilation window.

[0006] The dust shielding plate and the air vent form an angle of 45 degrees.

[0007] The internal silencing unit is communicated with the pressure vessel through an exhaust pipe of the pressure vessel.

[0008] The pressure vessel exhaust pipe is provided with an exhaust valve.

[0009] A threaded through hole is provided on the top of the upper box body, and the exhaust pipe of the pressure vessel is connected to the internal silencer unit through the threaded through hole.

[0010] Further, a pressure gauge is provided at the top of the upper box body to monitor the pressure in the external sound insulation unit jointly composed of the upper box body, the lower box body and the sound insulation cotton during pressure relief, so as to judge whether the sound insulation device is blocked.

[0011] The pressure gauge is threadedly connected to the upper box body.

[0012] Vent holes are uniformly arranged on the box walls of the upper box body and the lower box body.

[0013] Both the upper box body and the lower box body are made of stainless steel.

[0014] The beneficial effects of the utility model are as follows:

[0015] 1. The utility model adopts internal and external two-stage sound insulation, and the sound insulation unit can be replaced with different materials according to different use environments, effectively realizing the elimination of noise at the pressure relief site of the pressure vessel and the oil mist filtration and dust filtration of the discharged gas during pressure relief.

[0016] 2. The utility model avoids the blockage caused by dust accumulation when the sound insulation device is not used for a long time by setting a dust-proof outer cover. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is a structural schematic diagram of the utility model;

[0018] Figure 2 is a structural schematic diagram of the box body, the internal sound insulation unit, the dust-proof outer cover and the pressure gauge;

[0019] Figure 3 is a structural schematic diagram of the upper box body;

[0020] Figure 4 is Figure 3 the top view of;

[0021] Figure 5 is a structural schematic diagram of the lower box body;

[0022] Figure 6 is Figure 5 the top view of;

[0023] Figure 7 is a structural schematic diagram of the dust-proof outer cover;

[0024] Figure 8 is Figure 7 the top view of;

[0025] Figure 9 is Figure 7 the cross-sectional structural schematic diagram of;

[0026] In the figure: 1 - lower box body, 2 - bolt, 3 - upper box body, 4 - internal silencing unit, 5 - dust-proof outer cover, 6 - pressure gauge, 7 - pressure vessel exhaust pipe, 8 - exhaust valve, 9 - pressure vessel. Detailed implementation mode

[0027] To make the objectives, technical solutions and advantages of the embodiments of the present utility model clearer, the technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are some but not all of the embodiments of the present utility model. The components of the embodiments of the present utility model described and illustrated herein can be arranged and designed in various different configurations. Therefore, the detailed description of the embodiments of the present utility model provided in the accompanying drawings is not intended to limit the scope of the present utility model claimed, but merely represents selected embodiments of the present utility model. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the scope of protection of the present utility model.

[0028] The present utility model will be further described below with reference to the accompanying drawings and specific embodiments.

[0029] Embodiment 1:

[0030] As Figures 1 to 9As shown in the figure, a silencing device for a pressure vessel, the silencing device includes a box body and a pressure vessel 9. The box body includes an upper box body 3 and a lower box body 1. The upper box body 3 and the lower box body 1 are connected by bolts 2, and a hollow area is formed between the upper box body 3 and the lower box body 1. An internal silencing unit 4 is arranged inside the hollow area, and the internal silencing unit 4 is communicated with the pressure vessel 9. Both the upper box body 3 and the lower box body 1 are filled with sound-absorbing cotton. A dust-proof outer cover 5 is sleeved outside the upper box body 3 to prevent dust accumulation and blockage due to long-term non-use of the silencing device. The dust-proof outer cover 5 is fixed to the upper box body 3 by bolts 2. When the pressure vessel 9 is depressurized, the air flow first passes through the internal silencing unit 4 for primary silencing, and then passes through the external silencing unit jointly composed of the upper box body 3, the lower box body 1 and the sound-absorbing cotton for secondary silencing. The internal silencing unit 4 can be composed of different sound-absorbing materials and can be replaced with different materials according to different usage environments. For example: a silencing unit composed of a stainless steel mesh, a silencing unit composed of a copper mesh, a silencing unit composed of gradient cotton, a silencing unit composed of activated carbon particles, a silencing unit composed of polyester fiber. The sound-absorbing cotton can also be replaced with a stainless steel mesh, a copper mesh, gradient cotton, activated carbon particles, and polyester fiber according to different usage environments. When the silencing device depressurizes the pressure vessel 9, the on-site noise is significantly reduced compared with before, effectively protecting the hearing of on-site workers. At the same time, the depressurization time is shortened, the depressurization efficiency is improved, and it can also effectively filter the oil mist or dust in the gas discharged when the pressure vessel 9 is depressurized, protecting the physical health of the workers.

[0031] Embodiment 2:

[0032] Based on Embodiment 1, in this embodiment, the dust-proof outer cover 5 is improved. The dust-proof outer cover 5 is evenly provided with several ventilation windows. The air flow after being noise-reduced by the internal silencing unit 4 and the sound-absorbing cotton flows out through the ventilation windows. A dust-shielding plate is arranged at the outer top of the ventilation windows for shielding dust.

[0033] A 45-degree angle is formed between the dust-shielding plate and the ventilation windows.

[0034] Embodiment 3:

[0035] Based on Embodiment 1 or Embodiment 2, the internal silencing unit 4 and the pressure vessel 9 are communicated through a pressure vessel exhaust pipe 7.

[0036] An exhaust valve 8 is arranged on the pressure vessel exhaust pipe 7. The exhaust of the pressure vessel 9 is controlled by the exhaust valve 8. When it is necessary to depressurize the pressure vessel 9, the exhaust valve 8 is opened, and the air flow inside the pressure vessel 9 enters the internal silencing unit 4 through the pressure vessel exhaust pipe 7 for noise reduction.

[0037] The top of the upper box body 3 is provided with a threaded through-hole, and the pressure vessel exhaust pipe 7 is connected to the internal silencing unit 4 through the threaded through-hole.

[0038] Example 4:

[0039] On the basis of Example 3, in this example, the upper box body 3 is improved. A pressure gauge 6 is arranged on the top of the upper box body 3 to monitor the pressure in the external sound insulation unit jointly composed of the upper box body 3, the lower box body 1 and the sound-absorbing cotton during pressure relief, so as to judge whether the sound insulation device is blocked.

[0040] The pressure gauge 6 is connected to the upper box body 3 by thread.

[0041] Example 5:

[0042] On the basis of Examples 1-4, in this example, the upper box body 3 and the lower box body 1 are improved. Ventilation holes are evenly arranged on the box walls of the upper box body 3 and the lower box body 1. The airflow after being noise-reduced by the internal sound insulation unit 4 flows out through the ventilation holes.

[0043] Both the upper box body 3 and the lower box body 1 are made of stainless steel.

[0044] The above are only the preferred embodiments of the present invention. It should be understood that the present invention is not limited to the forms disclosed herein, should not be regarded as excluding other embodiments, but can be used in various other combinations, modifications and environments, and can be changed within the scope of the concept described herein through the above teachings or the technology or knowledge in the relevant field. And any changes and modifications made by those skilled in the art without departing from the spirit and scope of the present invention shall fall within the protection scope of the appended claims of the present invention.

Claims

1. A pressure vessel silencing device, characterized in that: The invention comprises a box body and a pressure container (9), wherein the box body comprises an upper box body (3) and a lower box body (1), wherein the upper box body (3) is connected to the lower box body (1), and a hollow area is formed between the upper box body (3) and the lower box body (1), wherein an internal silencing unit (4) is arranged inside the hollow area, and the internal silencing unit (4) is connected to the pressure container (9), wherein both the upper box body (3) and the lower box body (1) are filled with silencing cotton, and the outer side of the upper box body (3) is covered with a dustproof outer cover (5).

2. A pressure vessel silencing device according to claim 1, characterized in that: The dustproof outer cover (5) is evenly provided with a plurality of ventilation windows, and a dust shielding plate is provided on the outer top of the ventilation window.

3. A pressure vessel silencing device according to claim 2, characterized in that: The dust shielding plate and the air vent form an angle of 45 degrees.

4. A pressure vessel silencing device according to claim 1, characterized in that: The internal silencing unit (4) is connected to the pressure container (9) via a pressure container exhaust pipe (7).

5. A pressure vessel silencing device according to claim 4, characterized in that: An exhaust valve (8) is provided on the exhaust pipe (7) of the pressure container.

6. A pressure vessel silencing device according to claim 4, characterized in that: A threaded through hole is provided on the top of the upper box body (3), and the pressure vessel exhaust pipe (7) is connected to the internal silencer unit (4) via the threaded through hole.

7. A pressure vessel silencing device according to claim 1, characterized in that: A pressure gauge (6) is provided on the top of the upper box body (3).

8. A pressure vessel silencing device according to claim 7, characterized in that: The pressure gauge (6) is connected to the upper box body (3) via threads.

9. A pressure vessel silencing device according to any one of claims 1 to 8, characterized in that: The box walls of the upper box body (3) and the lower box body (1) are evenly provided with ventilation holes.

10. A pressure vessel silencing device according to claim 1, characterized in that: The upper box body (3) and the lower box body (1) are both made of stainless steel.

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