CN218267908U

CN218267908U - Throttle and pressure reduction emptying silencer

Info

Publication number: CN218267908U
Application number: CN202222763088.5U
Authority: CN
Inventors: 何宇峰; 丰中华; 丰云莉; 蔡海军; 周云芝
Original assignee: Hubei Runhe Petrochemical Equipment Co ltd
Current assignee: Hubei Runhe Petrochemical Equipment Co ltd
Priority date: 2022-10-17
Filing date: 2022-10-17
Publication date: 2023-01-10
Anticipated expiration: 2032-10-17

Abstract

The utility model provides a unloading silencer of throttle step-down, relate to silencer technical field, including the silencer main part, inlet port and the port of giving vent to anger, the fixed curved surface acoustic absorbent that is equipped with of silencer main part inner wall, the vertical direction uniform array of silencer main part distributes and is equipped with the cotton layer of sound absorption, the cotton layer surface density of sound absorption is from inlet port to the even increase of the port department of giving vent to anger, the cotton layer edge of sound absorption is fixed with curved surface acoustic absorbent inner wall, inlet port and the inside stand pipe that all is equipped with of the port of giving vent to anger, and stand pipe terminal surface offsets with the cotton layer surface of sound absorption, be equipped with the throttle pipe between the adjacent cotton layer of sound absorption, curved surface acoustic absorbent and the cotton layer of sound absorption carry out sound absorption to the gas of getting into, curved surface acoustic absorbent through continuous irregular change increases with gaseous area of contact, the noise elimination effect is improved, the cotton layer of sound absorption that gradually increases through density simultaneously carries out gaseous noise elimination in proper order, realize gaseous layer-by-layer throttle noise elimination, moreover, the steam generator is simple in structure, low cost, the gaseous noise elimination that falls fast of being convenient for.

Description

Throttle and pressure reduction emptying silencer

Technical Field

The utility model relates to a silencer technical field especially relates to a unloading silencer of throttle step-down.

Background

The composite exhaust and emptying silencer disclosed by the Chinese patent No. CN105987252A comprises a rainproof sound absorption umbrella cap, an expansion gradual change pipe, a primary throttling pressure reduction pipe, a secondary throttling circular pressure reduction pipe, a throttling pressure reduction pipe top plate, a resistive sound absorption layer, a silencer cylinder and an installation bearing structure. The bottom port of the expansion gradual change pipe is connected with the top of the emptying pipe through a flange, and the upper port of the expansion gradual change pipe is connected with the primary throttling and pressure reducing pipe; the pipe wall of the primary throttling and pressure reducing pipe is provided with a primary throttling hole; the secondary throttling pressure reducing pipe and the primary throttling pressure reducing pipe are concentric circular pipes, and the pipe wall of the secondary throttling pressure reducing pipe is provided with a secondary throttling hole; the upper part of the silencer cylinder body is provided with a circular air outlet, and a rain-proof sound absorption umbrella cap is arranged on the upper part of the air outlet. The silencer has the silencing effect of more than or equal to 45dB (A), and meanwhile, the silencer has the advantages of small volume, high strength and convenience in installation, and can prevent wind, sand, dust, rain, snow and water from invading.

Silencer in the above-mentioned patent is when using, and the edge that gas got into silencer main part inside back adoption inner space carries out the noise elimination and handles, and noise cancelling effect is not good, and gaseous and the inside contact surface of silencer main part be the plane, makes gaseous and the inside area of contact of silencer main part not enough, and space utilization is relatively poor, leads to noise cancelling effect not good, is unfavorable for in-service use.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the defects existing in the prior art and providing a throttling and pressure reducing emptying silencer.

In order to achieve the above purpose, the utility model adopts the following technical scheme: the utility model provides a unloading silencer of throttle step-down, includes silencer main part, inlet port and the port of giving vent to anger, the fixed curved surface acoustic absorption layer that is equipped with of silencer main part inner wall, the vertical direction uniform array of silencer main part distributes and is equipped with the cotton layer of sound absorption, the cotton layer surface density of sound absorption is from inlet port to the even increase of the port department of giving vent to anger, the cotton layer edge of sound absorption is fixed with curved surface acoustic absorption layer inner wall, inlet port and the inside stand pipe that all is equipped with of the port of giving vent to anger, and the stand pipe terminal surface offsets with the cotton layer surface of sound absorption, and is adjacent be equipped with the throttle pipe between the cotton layer of sound absorption.

Preferably, a support frame is fixedly arranged on the periphery of the port of the outer wall of the guide pipe, one end, far away from the guide pipe, of the support frame is fixed with the inner wall of the silencer main body, the vertical central lines of the adjacent throttling pipes are overlapped, and the vertical central lines of the throttling pipes are overlapped with the vertical central line of the guide pipe.

Preferably, the diameter of the inner wall of the surface of the main body of the muffler is gradually increased and then gradually reduced along the air inlet port to the air outlet port, and the diameter of the inner wall of the air inlet port is the same as that of the inner wall of the air outlet port.

Preferably, the contact edge of the end part of the guide pipe and the surface of the sound absorption cotton layer is subjected to sealing treatment, and the contact edge of the end part of the throttling pipe and the surface of the sound absorption cotton layer is subjected to sealing treatment.

Preferably, the outer wall of the sound absorption cotton layer is the same as the diameter of the inner wall of the silencer main body, the vertical center lines of the sound absorption cotton layers adjacent to each other are overlapped, and the vertical center line of the sound absorption cotton layer is overlapped with the vertical center line of the silencer main body.

Preferably, the vertical central line of the guide pipe and the vertical central line of the silencer main body are overlapped, an air inlet port is arranged at the center of the top surface of the silencer main body, and an air outlet port is arranged at the center of the bottom surface of the silencer main body.

Advantageous effects

The utility model discloses in, adopt silencer main part inner wall to set up curved surface acoustic absorber and the cotton layer of sound absorption to carry out sound absorption treatment to the gas that gets into, through continuous irregular change's curved surface acoustic absorber increase with gaseous area of contact, improve noise elimination effect, carry out gaseous noise elimination treatment in proper order through the cotton layer of sound absorption that density progressively increases simultaneously, realize gaseous layer-by-layer throttle noise elimination, simple structure, it is with low costs, the gaseous noise elimination of making an uproar of falling of making an uproar fast of being convenient for.

Drawings

FIG. 1 is a front cross-sectional view of a throttle depressurising vent muffler;

FIG. 2 is an internal block diagram of a throttle depressurizing vent muffler;

FIG. 3 is a schematic perspective view of a throttle depressurizing vent muffler.

Illustration of the drawings:

1. a muffler main body; 2. an air inlet port; 3. an air outlet port; 4. a curved sound absorbing layer; 5. a sound absorbing cotton layer; 6. a guide tube; 7. a support frame; 8. a throttle tube.

Detailed Description

In order to make the technical means, the creation features, the achievement purposes and the functions of the present invention easy to understand, the present invention will be further explained below with reference to the following embodiments and the accompanying drawings, but the following embodiments are only the preferred embodiments of the present invention, and not all embodiments are included. Based on the embodiments in the implementation, other embodiments obtained by those skilled in the art without any creative work belong to the protection scope of the present invention.

Specific embodiments of the present invention will be described below with reference to the accompanying drawings.

The specific embodiment is as follows:

referring to fig. 1-3, a throttling and pressure-reducing emptying silencer comprises a silencer main body 1, an air inlet port 2 and an air outlet port 3, wherein a curved surface sound absorption layer 4 is fixedly arranged on the inner wall of the silencer main body 1, the edge crest density of the curved surface sound absorption layer 4 close to the air inlet port 2 is 1/2 of the crest density of the air outlet port 3, the curved surface sound absorption layer 4 is arranged to effectively increase the contact area between gas and the curved surface sound absorption layer 4, so that the contact area between the curved surface sound absorption layer 4 and the gas is larger compared with that of a planar sound absorption layer in the same space, the space utilization rate is higher, the sound absorption effect is better, sound absorption cotton layers 5 are uniformly distributed in an array manner in the vertical direction of the silencer main body 1, the surface density of the sound absorption cotton layers 5 is uniformly increased from the air inlet port 2 to the air outlet port 3, the edge of the sound absorption cotton layers 5 is fixed with the inner wall of the curved surface sound absorption layer 4, guide pipes 6 are arranged inside the air inlet port 2 and the air outlet port 3, the end surface of the guide pipe 6 is abutted against the surface of the sound absorption cotton layer 5, a throttle pipe 8 is arranged between the adjacent sound absorption cotton layers 5, the inner wall of the silencer main body 1 is provided with a curved sound absorption layer 4 and the sound absorption cotton layer 5 to carry out sound absorption treatment on the entering gas, the contact area between the curved sound absorption layer 4 which changes irregularly continuously and the gas is increased, the noise elimination effect is improved, meanwhile, the sound elimination treatment of the gas is sequentially carried out through the sound absorption cotton layer 5 with gradually increased density, the layer-by-layer throttling and noise elimination of the gas are realized, the structure is simple, the cost is low, the rapid noise reduction and noise elimination of the gas are convenient, a support frame 7 is fixedly arranged on the circumference of the outer wall port of the guide pipe 6, one end of the support frame 7, far away from the guide pipe 6, is fixed on the inner wall of the silencer main body 1, the vertical central lines of the adjacent throttle pipes 8 are mutually overlapped, and the vertical central line of the throttle pipe 8 is overlapped with the vertical central line of the guide pipe 6, the support frame 7 fixes the end of the guide pipe 6, so that the guide pipe 6 is stably arranged in the silencer main body 1, when the gas silencing is used, aiming at a smaller amount of gas, the port of the device can be connected with the top end of the guide pipe 6 at the position of the gas inlet port 2, the gas inlet port 2 is sealed, so that a small amount of gas in the device can enter the inside of the sound absorption cotton layer 5 through the guide pipe 6 to absorb sound, and the sound is eliminated sequentially through the throttle pipe 8 and the sound absorption cotton layer 5, in this case, the gas only indirectly contacts the curved sound absorption layer 4 on the inner wall of the silencer main body 1 through the sound absorption cotton layer 5, because the gas amount is less, the whole silencer main body 1 is not required to be used simultaneously, the throttling and pressure reducing effects are realized, when more and the noise is larger, the external device can be directly connected with the gas inlet port 2, so that the gas directly enters the silencer main body 1, the gas entering the silencer main body 1 along the outside of the guide pipe 6 and the two paths inside of the guide pipe 6, the gas outlet port and the gas inlet port 3 gradually reduce the diameter of the sound absorption cotton layer, the gas entering the silencer main body 1, the silencer gradually reduces the pressure of the inlet port 3, the gas gradually, the pressure of the silencer main body gradually reducing port and the pressure of the silencer is reduced pressure of the silencer main body gradually increased along the inner wall of the silencer, the silencer main body 1, the silencer is gradually reduced pressure of the silencer, the silencer main body 1 gradually reduced pressure of the silencer, the silencer main body is gradually reduced pressure of the silencer, the silencer main body 1 gradually reduced pressure of the silencer main body 1, be convenient for discharge, 6 tip of stand pipe and the cotton layer 5 surface contact edge of sound absorption adopt sealed processing, 8 tip of throttle pipe and the cotton layer 5 surface contact edge of sound absorption adopt sealed processing, prevent gaseous scattering, the cotton layer 5 outer wall of sound absorption all is the same with 1 inner wall diameter of silencer main part, the cotton layer 5 vertical central line of adjacent sound absorption coincides mutually, the cotton layer 5 vertical central line of sound absorption coincides with 1 vertical central line of silencer main part, 6 vertical central lines of stand pipe and 1 vertical central line of silencer main part coincide mutually, 1 top surface central point of silencer main part puts and is equipped with

inlet port

2, 1 bottom surface central point of silencer main part puts and is equipped with outlet port 3, guarantee holistic focus is stable, be convenient for gaseous evenly distributed after getting into 1 inside of silencer main part.

In the present disclosure, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact between the first and second features, or may comprise contact between the first and second features not directly. Also, the first feature "on," "above" and "over" the second feature may include the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

The foregoing shows and describes the general principles, essential features, and advantages of the invention. It should be understood by those skilled in the art that the present invention is not limited by the above embodiments, and the description in the above embodiments and the description is only preferred examples of the present invention, and is not intended to limit the present invention, and that the present invention can have various changes and modifications without departing from the spirit and scope of the present invention, and these changes and modifications all fall into the scope of the claimed invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. The utility model provides a unloading silencer of throttle decompression, includes silencer main part (1), inlet port (2) and the port (3) of giving vent to anger, its characterized in that: silencer main part (1) inner wall is fixed and is equipped with curved surface acoustic absorption layer (4), silencer main part (1) vertical direction uniform array distributes and is equipped with cotton layer of sound absorption (5), cotton layer of sound absorption (5) surface density is from inlet port (2) to the even increase of port (3) department of giving vent to anger, cotton layer of sound absorption (5) edge is fixed with curved surface acoustic absorption layer (4) inner wall, inlet port (2) and port (3) inside all are equipped with stand pipe (6) of giving vent to anger, and stand pipe (6) terminal surface offsets with cotton layer of sound absorption (5) surface, and is adjacent be equipped with throttle pipe (8) between cotton layer of sound absorption (5).

2. The throttle letdown muffler according to claim 1, wherein: the silencer is characterized in that a support frame (7) is fixedly arranged on the periphery of the port of the outer wall of the guide pipe (6), one end, far away from the guide pipe (6), of the support frame (7) is fixed to the inner wall of the silencer main body (1), the throttle pipes (8) are adjacent to each other, and the throttle pipes (8) are overlapped with the vertical center line of the guide pipe (6).

3. The throttle letdown muffler according to claim 1, wherein: the silencer main body (1) is characterized in that the diameter of the inner wall of the surface of the silencer main body (1) is gradually increased and then gradually reduced along the air inlet port (2) to the air outlet port (3), and the diameter of the inner wall of the air inlet port (2) is the same as that of the inner wall of the air outlet port (3).

4. The throttle letdown muffler according to claim 1, wherein: the end part of the guide pipe (6) and the surface contact edge of the sound absorption cotton layer (5) are subjected to sealing treatment, and the end part of the throttle pipe (8) and the surface contact edge of the sound absorption cotton layer (5) are subjected to sealing treatment.

5. The throttle letdown muffler according to claim 1, wherein: the outer wall of the sound absorption cotton layer (5) is the same as the diameter of the inner wall of the silencer main body (1), the vertical central lines of the sound absorption cotton layer (5) are adjacent to each other, and the vertical central lines of the sound absorption cotton layer (5) are overlapped with the vertical central line of the silencer main body (1).

6. The throttle letdown muffler according to claim 1, wherein: the vertical center line of the guide pipe (6) and the vertical center line of the silencer main body (1) are mutually overlapped, an air inlet port (2) is arranged at the center of the top surface of the silencer main body (1), and an air outlet port (3) is arranged at the center of the bottom surface of the silencer main body (1).