Detection device of silencer for pipeline gas silencing

Abstract

The utility model discloses a detection device of a silencer for pipeline gas silencing, and belongs to the technical field of silencer detection. The device comprises a gas generation system, a connecting assembly and a noise detection assembly, wherein the gas generation system comprises a gas generation unit for generating gases with different pressures and flows; the connecting assembly comprises a connecting flange and a quick connecting unit, one end of the connecting flange communicates with the output end of the gas generation unit, the other end of the connecting flange can abut against a flange plate of the silencer, and the quick connecting unit is arranged on the connecting flange so that the flange plate of the silencer can be quickly fixed and kept sealed; and the noise detection assembly is arranged at an interval relative to the connecting flange and is used for measuring the noise of the silencer. The silencer detection device can be quickly connected with the silencer in a sealing manner to detect the silencer, so that the number of detected silencers in unit time is increased.

Description

TECHNICAL FIELD

[0001] The utility model relates to a detection device for the muffler for pipeline gas sound attenuation. BACKGROUND

[0002] The muffler is a device that allows airflow through a sound propagation surface, and is an important measure to eliminate aerodynamic noise. The muffler is a device for reducing noise installed in the airflow passage of aerodynamic equipment (such as a blower, an air compressor, a boiler exhaust port, a generator, a water pump, and other equipment with loud exhaust noise) or in the inlet and exhaust system.

[0003] The end of the muffler is provided with a flange plate, which can communicate with the gas pipeline to reduce noise. The produced muffler needs to be detected for noise reduction capability to ensure the efficiency of each muffler. However, the existing muffler is generally connected to the flange plate and the test system by bolts, which is inconvenient to disassemble and seriously slows down the detection efficiency. SUMMARY

[0004] Therefore, it is necessary to provide a detection device for the muffler for pipeline gas sound attenuation to solve the problem of disassembly between the existing muffler detection device and the muffler, which slows down the detection efficiency.

[0005] The utility model provides a detection device for the muffler for pipeline gas sound attenuation, comprising:

[0006] A gas generating system, comprising a gas generating unit for generating gas with different pressures and flow rates;

[0007] A connecting assembly, comprising a connecting flange and a quick connecting unit, one end of the connecting flange is in communication with the output end of the gas generating unit, the other end of the connecting flange can abut against the flange plate of the muffler, and the quick connecting unit is provided on the connecting flange to quickly fix the flange plate of the muffler and maintain sealing.

[0008] A noise detection assembly is arranged in a spaced relationship with the connecting flange to measure the noise of the muffler.

[0009] Further, the quick connecting unit comprises at least two locking clasps, the fixed end of the locking clasp is fixedly connected with the connecting flange, the movable end of the locking clasp can be lapped on the flange plate and press the flange plate, and the locking clasps are equidistantly arranged around the central axis of the connecting flange.

[0010] Further, the movable end of the locking clasp is provided with a lapping corner relative to the flange plate, and the lapping corner can clamp the flange plate.

[0011] Further, the quick connecting unit further comprises at least two docking columns fixedly connected with the end face of the connecting flange and arranged perpendicularly to the end face of the connecting flange, and the docking columns are inserted into the through holes of the flange plate.

[0012] Further, the connecting assembly further comprises a sealing ring arranged between the connecting flange and the flange plate.

[0013] Further, the noise detection assembly comprises a decibel meter, the distance between the decibel meter and the connecting flange is 5 m, the included angle between the connecting line of the decibel meter and the axis of the connecting flange is 45°, and the decibel meter is arranged obliquely relative to the muffler.

[0014] Further, the gas generating unit comprises a gas source, a stop valve, an electromagnetic valve and a pressure reducing valve connected in sequence through pipelines, and the pressure reducing valve is communicated with the connecting flange through a pipeline.

[0015] Further, a pressure gauge is arranged between the stop valve and the electromagnetic valve and communicated with the pipeline, so as to measure the gas pressure in real time.

[0016] Compared with the prior art, the utility model has the beneficial effects that:

[0017] The detection device of the muffler for pipeline gas noise reduction of the utility model is provided with a connecting assembly, the connecting assembly comprises a connecting flange and a quick connecting unit, one end of the connecting flange is communicated with the output end of the gas generating unit, and the other end of the connecting flange can abut against the flange plate of the muffler. The quick connecting unit is arranged on the connecting flange, the quick connecting unit can quickly fix the flange plate of the muffler, and the connecting flange and the flange plate are kept in sealed connection, so that the muffler is convenient for testing. Meanwhile, the quick connecting unit can quickly remove the muffler, replace the new muffler to be detected, and improve the detection efficiency of the muffler. BRIEF DESCRIPTION OF DRAWINGS

[0018] The drawings described herein are used to provide further understanding of the utility model and form part of the present application, and the illustrative embodiments of the utility model and the description thereof are used to explain the utility model and do not constitute improper limitation on the utility model. In the drawings:

[0019] Figure 1 It is the overall structural schematic view of the utility model;

[0020] Figure 2 It is the connecting structure schematic of the connecting assembly and the muffler in the utility model Figure 1 ;

[0021] Figure 3It is the connection structure schematic diagram of the connecting assembly and the silencer in the utility model Figure 2 ;

[0022] Figure 4 It is the structure schematic diagram of the locking hasp in the utility model.

[0023] In the figure, 100, gas generating system;110, gas generating unit;111, gas source;112, stop valve;113, electromagnetic valve;114, pressure reducing valve;115, pressure gauge;

[0024] 200, connecting assembly;210, connecting flange;220, quick connecting unit;221, locking hasp;221a, lap joint elbow;222, butt joint column;

[0025] 300, noise detection assembly;310, decibel meter;

[0026] 400, silencer;410, flange plate. DETAILED DESCRIPTION

[0027] The preferred embodiments of the utility model will be described in detail below in conjunction with the drawings, wherein the drawings constitute a part of the present application, and are used together with the embodiments of the utility model to explain the principles of the utility model, and are not used to limit the scope of the utility model.

[0028] The detection device of the silencer for pipeline gas silencing in the embodiment relates to the silencer detection technical field, and sets the connecting assembly 200 between the silencer 400 and the gas generating system 100, the connecting assembly 200 can be quickly and sealingly connected with the silencer 400, the silencer 400 is detected, and the detection quantity of the silencer 400 in unit time is improved.

[0029] Please refer to Figures 1 to 4 The detection device of the silencer for pipeline gas silencing in the embodiment, comprising: a gas generating system 100, a connecting assembly 200 and a noise detection assembly 300, the gas generating assembly includes a gas generating unit 110, the gas generating unit 110 can generate high-pressure gas with different pressure and flow. The connecting assembly 200 can quickly disassemble and assemble the silencer 400 and the gas generating unit 110, and the detection efficiency of the silencer 400 is improved. The noise detection assembly 300 can detect the noise of different silencers 400.

[0030] The connecting assembly 200 comprises a connecting flange 210 and a quick connecting unit 220. One end of the connecting flange 210 is in communication with the output end of the gas generating unit 110, and the other end of the connecting flange 210 can abut against the flange plate 410 of the muffler 400. The quick connecting unit 220 is arranged on the connecting flange 210. The quick connecting unit 220 can quickly fix the flange plate 410 of the muffler 400 and keep the connecting flange 210 and the flange plate 410 in sealed connection, thereby facilitating the testing of the muffler 400. Meanwhile, with the aid of the quick connecting unit 220, the muffler 400 can be quickly removed, and a new muffler for testing can be installed, thereby improving the testing efficiency of the muffler.

[0031] In some embodiments, referring to Figures 2 to 4 The quick connecting unit 220 comprises at least two locking clasps 221. The fixed end of the locking clasp 221 is fixedly connected with the connecting flange 210, and the movable end of the locking clasp 221 can be lapped on and press against the flange plate 410. By using the locking clasp, the user only needs to operate the movable end of the clasp for connection, without the need for screwing and dismounting of each bolt. The movable end can be conveniently lapped on the flange plate 410, and fixed connection is achieved through the pressing action. The quick connection of the flange plate 410 and the connecting flange 210 no longer needs the cumbersome manual screwing of the bolts, thereby reducing the complexity and operation time of personnel operation.

[0032] The movable end of the locking clasp 221 can lap and press against the flange plate 410, thereby ensuring that an effective seal is formed between the flange plate 410 and the connecting flange 210. The sealing property is crucial in the testing of the muffler 400, and can prevent gas leakage and ensure the accuracy of the test data.

[0033] The locking clasps 221 are equidistantly arranged around the central axis of the connecting flange 210. Equidistantly arranging the locking clasps 221 on the central axis of the connecting flange 210 can ensure that the flange plate 410 bears uniform pressure distribution when connected. Each clasp bears the same force, thereby avoiding the problem of excessive local stress, and effectively avoiding the problem of insecure connection or deformation of the flange plate 410 caused by excessive pressure borne by a single clasp.

[0034] The equidistantly arranged locking clasps 221 can keep the sealing surface of the flange plate 410 uniformly pressed when connected, thereby ensuring the sealing property of the connection. The sealing effect between the flange plate 410 and the connecting flange 210 is achieved through the pressing action of the clasps. Equidistant arrangement ensures the uniformity of the seal, thereby avoiding incomplete sealing or gas leakage caused by uneven stress.

[0035] As a further implementation, referring to Figure 4The movable end of the locking buckle 221 is provided with a lap joint 221a relative to the flange plate 410. The lap joint 221a is arranged to enable the movable end to tightly clamp the flange plate 410, thereby enhancing the fixing force between the flange plate 410 and the connecting flange 210. Through the clamping action of the lap joint 221a, the locking buckle 221 not only relies on compression for connection, but also provides additional mechanical fixing force through clamping.

[0036] The lap joint 221a can ensure that the movable end tightly clamps the flange plate 410, thereby not only enhancing the fixing effect, but also making the contact between the flange plate 410 and the connecting flange 210 more tight. Through stronger clamping force, the sealing performance of the connection can be further improved to prevent gas leakage.

[0037] In the specific implementation process, the lap joint 221a is specifically in the shape of "L", and includes a long side and a short side connected integrally. The long side of the lap joint 221a can rotate relative to the fixed end of the locking buckle 221, and the short side of the lap joint 221a can be lapped on the flange plate 410 of the muffler 400, thereby enhancing the clamping force and sealing performance between the connecting flange 210 and the flange plate 410, and improving the fixing and stability between the muffler 400 and the connecting system. This design optimizes the connection process, simplifies the operation, improves the sealing effect, and also prolongs the service life of the system.

[0038] In some embodiments, referring to Figure 2 and Figure 3 , the quick connection unit 220 further includes at least two docking columns 222, which are fixedly connected with the end face of the connecting flange 210 and arranged perpendicularly to the end face of the connecting flange 210. The docking columns 222 are fixedly connected with the end face of the connecting flange 210 and arranged perpendicularly, which can ensure that the flange plate 410 and the connecting flange 210 always maintain consistent alignment and stable position during each connection. The docking columns 222 are inserted into the through holes of the flange plate 410, thereby playing a positioning role and avoiding misalignment between the flange plate 410 and the connecting flange 210.

[0039] During each connection, the docking columns 222 can ensure the precise alignment of the connecting flange 210 and the flange plate 410, thereby ensuring the accuracy of sealing and fixing, and avoiding possible deviations during docking.

[0040] The arrangement of the docking columns 222 makes the installation and disassembly operation more intuitive and simple. During connection, the operator only needs to insert the docking columns 222 into the through holes and compress them through the locking buckle 221 and other auxiliary mechanisms. The entire process does not require too many complex docking steps. During the operation process, there will be no misoperation or misaligned connection, thereby reducing the problems caused by human errors.

[0041] The matching of the connecting column 222 and the through hole of the flange plate 410 can ensure the accurate docking position of the flange plate 410 and the connecting flange 210 during the connection process. The plug-in mode improves the matching accuracy of the flange plate 410 and the connecting flange 210, avoids the precision error that may occur during traditional bolt connection, and helps to eliminate the sealing problem caused by the gap between the flange plate 410 and the connecting flange 210.

[0042] It should be noted that the connecting assembly 200 further comprises a sealing ring, which is arranged between the connecting flange 210 and the flange plate 410. The sealing ring can effectively prevent gas leakage. The sealing ring fills the small gap between the flange plate 410 and the connecting flange 210 through the pressing action, forms a tight sealing layer, ensures the tight sealing of the connection part, and thus prevents gas leakage in the pipeline system.

[0043] At the same time, the sealing ring not only provides a sealing function, but also shares the pressure between the connecting flange 210 and the flange plate 410, uniformly distributes external force, and thus improves the stability of the connection. The sealing ring helps to stably dock the flange plate 410 and the connecting flange 210 through the uniform pressing action, and reduces the connection loosening or displacement caused by uneven stress.

[0044] In some embodiments, the noise detection assembly 300 comprises a decibel meter 310, which can detect the decibel number of real-time sound. The distance between the decibel meter 310 and the connecting flange 210 is 5 m, the angle between the connecting line of the decibel meter 310 and the axis of the connecting flange 210 is 45°, and the decibel meter 310 is arranged obliquely relative to the silencer 400. The position of the decibel meter 310 is fixed at a certain position, which can ensure the testing accuracy under different sites and standards.

[0045] At the same time, the 45° angle and 5 m setting can be closer to the noise propagation situation under real working conditions, and will not be limited to the straight-line propagation situation, ensuring that the test environment is closer to the actual use scene.

[0046] In some embodiments, please refer to Figure 1, the gas generating unit 110 includes a gas source 111, a stop valve 112, a solenoid valve 113, and a pressure reducing valve 114 connected in sequence by pipelines. The gas source 111 is a high-pressure gas tank that provides a basic supply of gas. The combination of the stop valve 112, the solenoid valve 113, and the pressure reducing valve 114 ensures the stability and adjustability of the gas flow. By controlling the output pressure of the gas through the pressure reducing valve 114, precise control of the flow and pressure of the gas can be achieved, thereby avoiding the adverse effects of pressure fluctuations in the gas source 111 on test results. The pressure reducing valve 114 functions to regulate the pressure of the gas, ensuring that the gas flow is supplied to the test system at a constant pressure, avoiding the impact of pressure fluctuations in the gas source 111 on the test results of the muffler 400. Through fine adjustment of the solenoid valve 113 and the pressure reducing valve 114, the flow and pressure of the gas flow can be accurately controlled under different test conditions, ensuring that the gas supply meets the test requirements.

[0047] The stop valve 112 allows the system to quickly close the gas flow when needed, avoiding the risk of gas leakage or excessive gas supply.

[0048] The addition of the solenoid valve 113 enables the gas generating unit 110 to achieve automated control, avoiding errors that may exist during manual adjustment. The solenoid valve 113 can respond to control signals and automatically adjust the opening and closing of the gas flow as needed, providing more flexible and real-time control of the gas flow.

[0049] The pressure reducing valve 114 functions to regulate high-pressure gas to an appropriate low-pressure range, which is crucial for maintaining precise control of gas flow. Through the adjustment of the pressure reducing valve 114, it can be ensured that the gas supply pressure is always stable within a set range, thereby avoiding damage to the muffler 400 or test equipment caused by excessive gas pressure.

[0050] Connecting the gas source 111, the stop valve 112, the solenoid valve 113, and the pressure reducing valve 114 in sequence through pipelines not only simplifies the gas flow control system but also improves the integration of the system.

[0051] In some embodiments, please continue to refer to Figure 1 A pressure gauge 115 is also provided between the stop valve 112 and the solenoid valve 113, which communicates with the pipeline and can monitor the changes in gas pressure in real time, helping operators to promptly understand the working status of the gas system. By observing the readings of the pressure gauge 115, the staff can immediately identify whether there is an abnormal gas pressure, avoiding the impact of gas pressure fluctuations on the detection results of the muffler 400.

[0052] Workflow: open the stop valve 112, close the electromagnetic valve 113 before the test, respectively, to the tank in 0.5MPa, 1.0MPa, 1.5MPa, 2.0Mpa, 2.5Mpa gas, remote open electromagnetic valve 113. Respectively, the decibel value dBa without installing the muffler 400, the decibel value dBb under the condition of installing the muffler 400, the decibel is taken 3 times to measure the average value, the calculation formula is as follows:

[0053] dB= ((dBa1-dBb1)+(dBa2-dBb2)+(dBa3-dBb3)) / 3;

[0054] In the formula: dBa is the decibel value without installing the muffler 400, dBb is the decibel value of installing the muffler 400, and the quality of a single muffler 400 can be evaluated through dB. Different mufflers can be quickly replaced through the connecting assembly 200, and the number of mufflers detected per unit time is improved.

[0055] The above is only the preferred specific implementation of the present application, but the protection scope of the present application is not limited to this, any skilled person in the art can easily think of changes or replacements within the technical range disclosed by the present application, which should be covered in the present application.

Claims

1. A detection device for a silencer used for silencing pipeline gas, characterized in that, include: A gas generating system, the gas generating system comprising a gas generating unit for generating gases of different pressures and flow rates; The connection assembly includes a connecting flange and a quick-connect unit. One end of the connecting flange is connected to the output end of the gas generating unit, and the other end of the connecting flange can abut against the flange of the silencer. The quick-connect unit is disposed on the connecting flange to quickly fix the flange of the silencer and maintain a seal. A noise detection component is spaced relative to the connecting flange to measure the noise of the silencer.

2. The detection device for a silencer used for silencing pipeline gas according to claim 1, characterized in that, The quick-connect unit includes at least two locking latches. The fixed end of the locking latch is fixedly connected to the connecting flange, and the movable end of the locking latch can overlap and press against the flange. The locking latches are equidistantly arranged around the central axis of the connecting flange.

3. The detection device for a silencer used for silencing pipeline gas according to claim 2, characterized in that, The movable end of the locking buckle is provided with an overlapping elbow relative to the flange, and the overlapping elbow can lock the flange.

4. The detection device for a silencer used for silencing pipeline gas according to claim 1, characterized in that, The quick-connect unit further includes at least two mating posts, which are fixedly connected to the end face of the connecting flange and are arranged perpendicular to the end face of the connecting flange. The mating posts are inserted into the through holes of the flange.

5. The detection device for a silencer used for silencing pipeline gas according to claim 1, characterized in that, The connecting assembly also includes a sealing ring, which is disposed between the connecting flange and the flange plate.

6. The detection device for a silencer used for silencing pipeline gas according to claim 1, characterized in that, The noise detection component includes a decibel meter, the distance between the decibel meter and the connecting flange is 5m, the angle between the line connecting the decibel meter and the connecting flange and the axis of the connecting flange is 45°, and the decibel meter is tilted relative to the silencer.

7. The detection device for a silencer used for silencing pipeline gas according to claim 1, characterized in that, The gas generating unit includes a gas source, a shut-off valve, a solenoid valve, and a pressure reducing valve connected in sequence via pipelines. The pressure reducing valve is connected to the connecting flange via a pipeline.

8. A detection device for a silencer used for silencing pipeline gas according to claim 7, characterized in that, A pressure gauge is also provided between the shut-off valve and the solenoid valve. The pressure gauge is connected to the pipeline to measure the gas pressure in real time.

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