Compressor silencing filter device

Abstract

The application discloses a compressor silencing filter device, and belongs to the technical field of compressor accessories, which solves the technical problems of large noise, large vibration, short service life and unstable operation of the silencing filter in the prior art. It comprises a filtering section, a low-frequency noise reduction section and a gas collecting section. The filtering section is connected with the low-frequency noise reduction section below, and the low-frequency noise reduction section is connected with the gas collecting section below. The gas is filtered first, then silenced, and finally collected in the main pipe. The low-frequency noise reduction section comprises a first silencing pipe and a second silencing pipe, and the middle part of the pipe wall of the first silencing pipe and the second silencing pipe is provided with a silencing and noise reduction hole. The vibration of the device pipeline is obviously reduced, the filter platform is reduced by 190 mu m, the noise value is reduced by 4-5 dB, the air quality entering the compressor is improved, and the service life of each part of the unit is prolonged.

Description

[0001] The present application relates to the technical field of compressor accessories, in particular to a compressor noise reduction filter device. BACKGROUND

[0002] The 200,000-ton synthetic ammonia device has four 6M50 type combined compressors, and the noise of the inlet noise reduction filter of the first stage is the largest, reaching 103 dB, which is the main noise source. At the same time, the noise in the low frequency band is difficult to reduce, and external professional noise control units are also reluctant to accept and process. The noise seriously affects the surrounding work and living environment, and needs to be improved to meet the national standard requirements for factory noise values.

[0003] The 6M50 type combined compressor of the 200,000-ton synthetic ammonia device has a one-stage horizontal filter, and from the use effect, the air noise reduction filter has the following four shortcomings:

[0004] 1. In the prior art, the filter structure is simple, one-stage (horizontal), without noise reduction, filtering, buffering effect, resulting in large vibration, noise, low frequency resonance and other defects of the compressor unit and pipeline;

[0005] 2. In the prior art, the stainless steel wire mesh filter element has low pollution resistance and low precision, resulting in a large amount of particles in the air entering the cylinder, combining with the lubricating oil under the action of high temperature to form carbon deposits, block the gas passage, affect the exhaust capacity of the compressor, increase the power consumption, and when the gas valve seat passage and the stuck valve piece are blocked, the operation cycle of the gas valve is seriously shortened. After 5-7 days of operation, the machine needs to be overhauled for inspection and cleaning of the gas valve. If the carbon deposits collide in the buffer to generate sparks, it may cause a fire explosion and other major accidents. The stainless steel wire mesh filter element is prone to breakage, and when the broken wire mesh enters the cylinder, it is embedded into the support ring and piston ring, accelerating the wear rate and reducing the service life to 7-25 days, greatly increasing the equipment maintenance cost and labor intensity;

[0006] 3. In the prior art, the service life is short, the machine needs to be overhauled and replaced frequently, which is not conducive to the long-term, safe and stable operation of the compressor unit, and there is a certain safety risk;

[0007] 4. In the prior art, the material cost is high, resulting in high production cost. SUMMARY

[0008] The present application relates to the technical field of compressor accessories, in particular to a compressor noise reduction filter device.

[0009] To achieve the above-mentioned purpose, the present application provides the following technical solutions:

[0010] The present invention provides a compressor silencer and filter device, which is characterized by comprising a filtering section, a low-frequency noise reduction section, and a gas collection section. The filtering section is connected to the low-frequency noise reduction section below, and the low-frequency noise reduction section is connected to the gas collection section below. The gas is first filtered and then silenced, and finally collected in a main pipe; wherein,

[0011] The low-frequency noise reduction section includes a first silencer pipe and a second silencer pipe, and silencer holes are provided in the middle of the pipe walls of the first silencer pipe and the second silencer pipe.

[0012] Furthermore, the filtration section includes a filter element assembly, a filter element distribution plate, and a gas inlet cavity. The filter element distribution plate is arranged below the filter element assembly, and the gas inlet cavity is arranged on one side of the filter element assembly.

[0013] Furthermore, the filter element assembly includes a filter element and a filter element support rod, the filter element support rod is arranged inside the filter element, a channel steel fixing plate is provided on the upper part of the filter element assembly, and the filter element support rod is connected to the inside of the filter section through a screw connecting plug.

[0014] Furthermore, the filter element is a paper filter element, and the filter element precision is 3μm.

[0015] Furthermore, the first silencer pipes and the second silencer pipes are each provided with multiple groups, the first silencer pipes are separated by a first partition plate, and the second silencer pipes are separated by a second partition plate.

[0016] Furthermore, a flange is connected below the gas collecting section, and the device is connected to the compressor air inlet through the flange. An air intake cylinder is provided inside the gas collecting section, and the gas collecting section and the components inside the gas collecting section are fixed by reinforcing ribs and fixing ribs.

[0017] Furthermore, the diameter of the sound-absorbing and noise-reducing hole is 4 mm.

[0018] Based on the above technical solution, the embodiments of the present invention can produce at least the following technical effects:

[0019] (1) The compressor silencer filter device provided by the present invention changes the filter element of the filter section from a metal mesh to a paper filter element, and the precision is increased from 20μm to 3μm, thereby improving the quality of air entering the compressor and extending the service life of each component of the unit. The service life of the compressor valve is increased from the original 1-2 months to the current 8-12 months.

[0020] (2) The compressor silencer and filter device provided by the present invention significantly reduces the vibration of the equipment pipeline, which is reduced by 190μm at the filter platform, and the noise value is reduced by 4-5dB, which greatly improves the working environment.

[0021] (3) The compressor silencing and filtering device provided by the application has significantly improved air intake quality, reduced the generation of carbon deposition, effectively utilized the compressor, avoided the risk of abnormal temperature rise and even fire explosion, greatly reduced the number of compressor maintenance, and effectively improved the long-period, safe and stable operation of the compressor unit. BRIEF DESCRIPTION OF DRAWINGS

[0022] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the drawings needed to be used in the embodiments or the prior art description will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor on the basis of the drawings shown.

[0023] Figure 1 is a structural schematic diagram of the embodiment of the present application;

[0024] In the figure: 1-filter section, 11-filter core assembly, 111-filter core, 112-filter core support rod, 12-filter core distribution plate, 13-gas inlet cavity, 14-slotted steel fixing plate;

[0025] 2-low-frequency noise reduction section, 21-first silencer pipe, 22-second silencer pipe, 23-first partition plate, 24-second partition plate;

[0026] 3-gas collection section, 31-flange, 32-gas inlet cylinder, 33-stiffener, 34-fixing rib. DETAILED DESCRIPTION

[0027] The technical solutions in the embodiments of the present application will be described clearly and completely below. Obviously, the described embodiments are only some of the embodiments of the present application, not all. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor are within the scope of protection of the present application. In addition, the technical solutions of each embodiment can be combined with each other, but it must be based on the fact that those skilled in the art can realize it. When the combination of technical solutions appears contradictory or unachievable, it should be considered that the combination of technical solutions does not exist and is not within the scope of protection claimed by the present application.

[0028] The purpose of the present application is to provide a synthetic ammonia production device air compressor unit one-stage inlet silencing and filtering device with good filtering effect, high air medium intake quality, long filter core service life, good noise reduction and vibration reduction effect, and economy.

[0029] The purpose of the present application is achieved by the following technical solutions:

[0030] As Figure 1As shown, a compressor silencing filter device comprises a filter section 1, a low-frequency noise reduction section 2, and a gas collection section 3, the filter section 1 is connected below the low-frequency noise reduction section 2, and the low-frequency noise reduction section 2 is connected below the gas collection section 3, the gas is filtered first and then silenced, and finally collected into a main pipe; wherein,

[0031] The low-frequency noise reduction section 2 comprises a first silencing pipe 21 and a second silencing pipe 22, sound reduction holes are arranged in the middle of the pipe wall of the first silencing pipe 21 and the second silencing pipe 22, the sound reduction holes can effectively reduce the airflow fluctuation of the transmission gas in the pipeline while ensuring the air intake efficiency, the gas flow is more stable, the noise is further reduced without affecting the original airflow loss, and thus the balance between the air intake efficiency and the noise reduction effect can be ensured.

[0032] In specific embodiments, the filter section 1 comprises a filter core assembly 11, a filter core distribution plate 12, and a gas inlet cavity 13, the filter core distribution plate 12 is arranged below the filter core assembly 11, and the gas inlet cavity 13 is arranged on one side of the filter core assembly 11.

[0033] In specific embodiments, the filter core assembly 11 comprises a filter core 111 and a filter core support rod 112, the filter core support rod 112 is arranged inside the filter core 111, the filter core support rod 112 is connected inside the filter section 1 through a screw rod connecting plug, the original design of 16 groups of filter cores is expanded to 20 groups, the flow area is increased, and the purpose of improving the compressor efficiency is achieved by reducing the air intake assistance.

[0034] In specific embodiments, the filter core 111 is a paper filter core, and the precision of the filter core 111 is 3 μm.

[0035] In specific embodiments, a plurality of groups of the first silencing pipe 21 and the second silencing pipe 22 are arranged, the first silencing pipes 21 are separated by a first partition plate 23, and the second silencing pipes 22 are separated by a second partition plate 24.

[0036] In specific embodiments, a flange 31 is connected below the gas collection section 3, the device is connected with the air inlet of the compressor through the flange 31, an air inlet cylinder 32 is arranged inside the gas collection section 3, and the gas collection section 3 and the components inside the gas collection section 3 are fixed through a reinforcing rib 33 and a fixing rib 34.

[0037] In specific embodiments, the diameter of the sound reduction hole is 4 mm.

[0038] The compressor silencing filter device provided by the application can achieve the following effects: the gas is sucked into the outer cylinder from the tangent direction, rotates at high speed in the outer cylinder, the dust particles in the airflow are separated out under the action of centrifugal force, the airflow passes through the filter screen, the silencing pipe and the overpass section, the air damping is increased, the noise is reduced, the air is expanded in the flow, and a good silencing effect is achieved.

[0039] Technical requirements of the present application: 1. The verticality of the muffler box and the levelness of the middle partition plate is 2mm / m. 2. The noise reduction pipe should be cleaned of drilling burrs, iron filings and other impurities after drilling and at the inlet and outlet gas pipe. 3. The installation and assembly size error of each part in the muffler should be controlled within 2mm, and the deformation problem after the installation group welding should be paid attention to. 4. After the completion of production, the welding slag, coating, iron filings and other sundries remaining in the muffler should be cleaned. 5. A ladder is arranged on the upper part of the muffler, which is made of Φ20 round steel, 400mm×160mm, with a spacing of 400mm.

[0040] After the improvement of the noise reduction and filtration device, the effect is obviously improved, and the detection data in Table 1 can draw the conclusion:

[0041] Table 1 Detection data

[0042] Detection position Before modification After modification 2# Ammonia fluctuation value 90 μm 17 μm Filter housing fluctuation value 280-420 μm 110-160 μm Filter platform fluctuation value 310 μm 120 μm Noise value at one stage cylinder 86 dB 82 dB Noise at filter inlet 79.6 dB 75 dB

[0043] The above shows and describes the basic principles and main features of the present application and the advantages of the present application. It should be understood by those skilled in the art that the present application is not limited by the above examples, and the above examples and descriptions in the specification are only to illustrate the principles of the present application. Without departing from the spirit and scope of the present application, various changes and improvements can be made to the present application, and these changes and improvements all fall within the scope of the claimed present application. The scope of protection of the present application is defined by the appended claims and their equivalents.

Claims

1. A compressor silencing filter device, characterized in that: It comprises a filtering section (1), a low-frequency noise reduction section (2), and a gas collecting section (3). The filtering section (1) is connected to the low-frequency noise reduction section (2) below, and the low-frequency noise reduction section (2) is connected to the gas collecting section (3) below. The gas is first filtered and then silenced, and finally collected in a main pipe; wherein, The low-frequency noise reduction section (2) comprises a first silencer pipe (21) and a second silencer pipe (22), and silencer holes are provided in the middle of the pipe walls of the first silencer pipe (21) and the second silencer pipe (22); The filter section (1) comprises a filter element assembly (11), a filter element distribution plate (12), and a gas inlet cavity (13); the filter element distribution plate (12) is arranged below the filter element assembly (11), and the gas inlet cavity (13) is arranged on one side of the filter element assembly (11); The filter element assembly (11) comprises a filter element (111) and a filter element support rod (112), wherein the filter element support rod (112) is arranged inside the filter element (111), a channel steel fixing plate (14) is arranged on the upper part of the filter element assembly (11), and the filter element support rod (112) is connected to the inside of the filter section (1) via a screw connection plug; The first silencer pipes (21) and the second silencer pipes (22) are each provided with a plurality of groups, the first silencer pipes (21) are separated by a first partition plate (23), and the second silencer pipes (22) are separated by a second partition plate (24); A flange (31) is connected below the gas collection section (3), and the device is connected to the compressor air inlet via the flange (31). An air inlet cylinder (32) is provided inside the gas collection section (3), and the gas collection section (3) and the components inside the gas collection section (3) are fixed via reinforcing ribs (33) and fixing ribs (34).

2. The compressor silencing filter device according to claim 1, characterized in that: The filter element (111) is a paper filter element, and the precision of the filter element (111) is 3 μm.

3. The compressor silencing filter device according to claim 1, characterized in that: The diameter of the sound-absorbing and noise-reducing hole is 4 mm.

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