Pressure relief device for pressure vessel

Abstract

The utility model discloses a pressure vessel pressure removing device, and relates to the field of pressure vessel pressure removing, in particular to a pressure vessel pressure removing device which comprises an air inlet, a flow guide pipe and a silencing unit, the two ends of the air inlet are connected with a pressure vessel air outlet and the flow guide pipe respectively, and even air outlet holes are formed in the surface of the flow guide pipe. And a silencing unit is sleeved outside the flow guide pipe. The high-efficiency low-noise pressure relief device has the advantages that the components such as the air inlet, the flow guide pipe and the noise reduction unit are arranged, so that high-efficiency low-noise pressure relief of the pressure vessel is realized. Specifically, the device has the following beneficial effects that through the arrangement of the flow guide pipe, the flowing path of high-pressure airflow can be increased, so that the airflow speed is reduced, and noise is reduced. And uniform air outlet holes are formed in the surface of the flow guide pipe, so that airflow can be discharged more stably, and the noise is further reduced.

Description

Technical Field

[0001] The utility model relates to the field of pressure relief of pressure vessels, and particularly relates to a pressure relief device for pressure vessels. Background Art

[0002] During the normal use, maintenance and overhaul of pressure vessels, it is necessary to exhaust and relieve the pressure of the vessels to ensure safety. This exhaust and pressure relief operation usually involves quickly releasing the high-pressure gas accumulated in the vessel to the external environment. Due to the huge pressure difference between the inside and the outside of the pressure vessel, several problems will be caused in this process:

[0003] 1. Noise pollution: When the rapidly discharged high-pressure gas passes through the exhaust port, it generates strong turbulence and vibration with the surrounding air, producing high-decibel noise. This noise not only causes occupational health hazards to the operators, such as hearing damage, but may also affect the quality of life of nearby residents.

[0004] 2. Safety risks: If the gas release speed and pressure cannot be properly controlled, the rapid discharge of high-pressure gas may lead to dangerous shock waves or blast waves, increasing the risk of accidents.

[0005] 3. Environmental pollution: In some cases, the pressure vessel contains gases that may pollute the environment, and direct discharge into the atmosphere may cause environmental pollution.

[0006] 4. Energy waste: The energy of the rapidly released high-pressure gas cannot be effectively recycled, resulting in energy waste.

[0007] To solve these problems, common practices include using a buffer tank to gradually release the pressure, or using sound insulation and sound-absorbing materials to reduce noise. However, these traditional methods often have problems such as low efficiency, complex operation, and insignificant noise reduction. Content of the Utility Model

[0008] The utility model purpose of the present utility model is: aiming at the above-mentioned existing problems, to provide a pressure relief device for pressure vessels.

[0009] The technical scheme adopted by the present utility model is as follows: a pressure relief device for pressure vessels, comprising: an air inlet, a diversion pipe and a sound insulation unit. Both ends of the air inlet are respectively connected to the air outlet of the pressure vessel and the diversion pipe. The surface of the diversion pipe is provided with uniform air holes, and a sound insulation unit is sleeved outside the diversion pipe.

[0010] Further, the diversion pipe is arranged in a bent shape that can increase the flow path of the high-pressure air flow.

[0011] Further, the diversion pipe is filled with sound-absorbing cotton.

[0012] Further, the sound insulation unit includes multiple layers.

[0013] Furthermore, the surface of the multi-layer sound-absorbing unit is provided with uniform air outlet holes.

[0014] Furthermore, sound-absorbing cotton is filled between the multi-layer sound-absorbing units.

[0015] Furthermore, a fixing device for fixing the pressure-relieving device is provided at the bottom of the sound-absorbing unit.

[0016] Furthermore, a dust-proof cover is also included, and the dust-proof cover is sleeved outside the sound-absorbing unit.

[0017] Furthermore, a high-pressure hose is also included, and the high-pressure hose is used to connect the air inlet and the pressure vessel.

[0018] Furthermore, a pressure gauge is provided on the sound-absorbing unit.

[0019] In summary, due to the adoption of the above technical solutions, the beneficial effects of the present utility model are as follows:

[0020] The pressure-relieving device for a pressure vessel provided by the present utility model realizes high-efficiency and low-noise pressure relief of the pressure vessel by setting components such as an air inlet, a diversion pipe, and a sound-absorbing unit. Specifically, the device has the following beneficial effects: By setting the diversion pipe, the flow path of the high-pressure air flow can be increased, thereby reducing the air flow speed and reducing the generation of noise. The surface of the diversion pipe is provided with uniform air outlet holes, which can make the air flow discharge more smoothly and further reduce noise. A sound-absorbing unit is sleeved outside the diversion pipe, which can effectively absorb and weaken noise and protect the hearing of on-site operators. The sound-absorbing unit includes a multi-layer structure, which can improve the sound-absorbing effect. Sound-absorbing cotton is filled between the multi-layer sound-absorbing units, which can further enhance the sound-absorbing effect. A fixing device for fixing the pressure-relieving device is provided at the bottom of the sound-absorbing unit, which can improve the stability and safety of the device. The setting of the dust-proof cover can prevent dust from entering the device and ensure the normal operation of the device. The setting of the high-pressure hose can realize the quick connection and disassembly of the air inlet and the pressure vessel, which is convenient for installation and use. A pressure gauge is provided on the sound-absorbing unit, which can monitor the pressure situation in real time and ensure the safe progress of the pressure relief process. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 is a schematic cross-sectional structure diagram of the present utility model,

[0022] Figure 2 is a schematic structure diagram of the dust-proof cover of the present utility model,

[0023] Figure 3 is a schematic structure diagram when the present utility model is in use.

[0024] Markings in the figure: 1 - air inlet, 2 - diversion pipe, 3 - silencing unit, 4 - outlet of pressure vessel, 5 - sound-absorbing cotton, 6 - fixing device, 7 - dust cover, 8 - pressure gauge, 9 - high-pressure hose. Detailed implementation mode

[0025] The following will describe the present utility model in detail with reference to the accompanying drawings.

[0026] In order to make the objectives, technical solutions and advantages of the present utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present utility model and are not used to limit the present utility model.

[0027] Embodiment 1

[0028] A pressure vessel pressure relief device includes: an air inlet 1, a diversion pipe 2 and a silencing unit 3. Both ends of the air inlet 1 are respectively connected to an outlet of a pressure vessel 4 and a diversion pipe 2. The surface of the diversion pipe 2 is provided with uniform air holes, and a silencing unit 3 is sleeved outside the diversion pipe 2. In this embodiment, through the setting of the diversion pipe 2, the flow path of the high-pressure air flow can be increased, thereby reducing the air flow speed and reducing the generation of noise. At the same time, the silencing unit 3 can effectively absorb and weaken the noise and protect the hearing of on-site operators.

[0029] Furthermore, the diversion pipe 2 is set to a bent shape that can increase the flow path of the high-pressure air flow. In this embodiment, the diversion pipe 2 adopts a bent shape, further increasing the flow path of the air flow, reducing the air flow speed, and reducing the generation of noise.

[0030] In this embodiment, the diversion pipe 2 adopts one of various structures such as a spiral type, a U type, a torus, a cylinder, a C type, etc. Such a setting can increase the path of the diversion pipe 2 in the silencing device, reduce the flow rate of the gas, save space, and minimize the generation of noise in a limited space.

[0031] Furthermore, the diversion pipe 2 is filled with sound-absorbing cotton 5. In this embodiment, filling the diversion pipe 2 with sound-absorbing cotton 5 can further enhance the silencing effect and reduce the noise.

[0032] Furthermore, the silencing unit 3 includes multiple layers. In this embodiment, the silencing unit 3 adopts a multi-layer structure, which can improve the silencing effect and more effectively weaken the noise.

[0033] In this embodiment, the silencing unit 3 includes three layers to achieve the best silencing effect.

[0034] Furthermore, the surface of the multi-layer silencing unit 3 is provided with uniform air holes. In this embodiment, setting uniform air holes on the surface of the multi-layer silencing unit 3 can make the air flow discharge more smoothly and further reduce the noise.

[0035] Furthermore, sound-absorbing cotton 5 is filled between the multi-layer sound-absorbing units 3. In this embodiment, filling sound-absorbing cotton 5 between the multi-layer sound-absorbing units 3 can further enhance the sound-absorbing effect and reduce noise.

[0036] Furthermore, a fixing device 6 for fixing the pressure-relieving device is provided at the bottom of the sound-absorbing unit 3. In this embodiment, by providing the fixing device 6, the stability and safety of the device can be improved.

[0037] Furthermore, a dust-proof cover 7 is further included, and the dust-proof cover 7 is sleeved outside the sound-absorbing unit 3. In this embodiment, by providing the dust-proof cover 7, dust can be prevented from entering the interior of the device, ensuring the normal operation of the device.

[0038] Furthermore, a high-pressure hose 9 is further included, and the high-pressure hose 9 is used to connect the air inlet 1 and the pressure vessel. In this embodiment, by providing the high-pressure hose 9, the quick connection and disassembly of the air inlet 1 and the pressure vessel can be realized, facilitating installation and use.

[0039] The hose can be adjusted differently according to different pressure relief ports of the pressure vessel to improve the versatility of the pressure-relieving device. At the same time, the design of using a hose can also increase the applicability of the equipment in different scenarios.

[0040] Furthermore, a pressure gauge 8 is provided on the sound-absorbing unit 3. In this embodiment, by providing the pressure gauge 8, the pressure condition can be monitored in real time to ensure the safe progress of the pressure-relieving process. If the pressure value of the pressure gauge 8 increases, it means that the internal sound-absorbing cotton 5 may be blocked, and the internal sound-absorbing cotton 5 needs to be replaced in time to prevent danger.

[0041] Embodiment 2

[0042] A pressure vessel pressure-relieving device, wherein the diversion pipe 2 is arranged in a spiral shape. In this embodiment, the diversion pipe 2 is in a spiral shape, which can further increase the flow path of the air flow, reduce the air flow speed, and reduce the generation of noise. At the same time, the design of the spiral diversion pipe 2 makes the air flow rotate during the flow process, which helps to stabilize and evenly distribute the air flow, thereby improving the sound-absorbing effect.

[0043] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, and improvements made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A pressure relief device for a pressure vessel, characterized in that: include: An air inlet (1), a flow guide pipe (2) and a silencer unit (3), wherein the two ends of the air inlet (1) are respectively connected to a pressure vessel air outlet (4) and the flow guide pipe (2), the surface of the flow guide pipe (2) is provided with uniform air outlet holes, and the outer cover of the flow guide pipe (2) is provided with a silencer unit (3).

2. A pressure relief device for a pressure vessel according to claim 1, characterized in that: The flow guide tube (2) is arranged in a curved shape so as to increase the distance the high-pressure airflow flows.

3. A pressure relief device for a pressure vessel according to claim 1, characterized in that: The flow guide tube (2) is filled with sound-absorbing cotton (5).

4. A pressure relief device for a pressure vessel as claimed in claim 1, characterized in that: The sound-absorbing unit (3) comprises multiple layers.

5. A pressure relief device for a pressure vessel as claimed in claim 4, characterized in that: The surfaces of the multiple layers of the muffler unit (3) are provided with uniform air outlet holes.

6. A pressure relief device for a pressure vessel as claimed in claim 4, characterized in that: Sound-absorbing cotton (5) is filled between the multiple layers of the sound-absorbing units (3).

7. A pressure relief device for a pressure vessel as claimed in claim 1, characterized in that: A fixing device (6) for fixing the pressure relief device is arranged at the bottom of the muffler unit (3).

8. A pressure relief device for a pressure vessel as claimed in claim 1, characterized in that: It also comprises a dust cover (7), wherein the dust cover (7) is sleeved outside the muffler unit (3).

9. A pressure relief device for a pressure vessel as claimed in claim 1, characterized in that: It also comprises a high-pressure hose (9), wherein the high-pressure hose (9) is used to connect the air inlet (1) and the pressure container.

10. A pressure relief device for a pressure vessel according to claim 1, characterized in that: The muffler unit (3) is provided with a pressure gauge (8).

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