CN114604281B

CN114604281B - Rail transit vent silencer

Info

Publication number: CN114604281B
Application number: CN202210357499.6A
Authority: CN
Inventors: 田齐芳; 郑春霞; 袁佳
Original assignee: Jiangsu Huadong Zhengda Air Conditioning Equipment Co ltd
Current assignee: Jiangsu Huadong Zhengda Air Conditioning Equipment Co ltd
Priority date: 2022-04-06
Filing date: 2022-04-06
Publication date: 2023-08-04
Anticipated expiration: 2042-04-06
Also published as: CN114604281A

Abstract

The invention relates to the technical field of silencers and discloses a rail transit vent silencer which comprises an inclined pipeline, wherein an air inlet pipe is fixedly connected to one side of the top of the inclined pipeline, an air outlet pipe is fixedly connected to one side of the bottom of the inclined pipeline, a plurality of vibration components are vertically arranged in the inclined pipeline, silencing cotton is fixedly connected to one side of the vibration components close to the air inlet pipe, each silencing cotton is correspondingly provided with a connecting pipe, a nozzle is fixedly connected to one side of the connecting pipe, which faces towards the silencing cotton, of the connecting pipe, the end part of the connecting pipe extends to the outside of the inclined pipeline, a water inlet component is commonly connected to the end parts of the plurality of connecting pipes, a drainage groove is fixedly formed in the inner wall of the bottom of the inclined pipeline, extends to the pipe orifice of the air outlet pipe, a sealing ring is arranged on the surface, which is abutted against the silencing cotton, and a vacuum cavity is arranged in the sealing ring.

Description

Rail transit vent silencer

Technical Field

The invention relates to the technical field of silencers, in particular to a rail transit vent silencer.

Background

With the rapid development of social economy, the muffler refers to an air flow pipeline with noise propagation, and noise in the pipeline can be attenuated or reflected back by using a pipeline with a sound absorption lining and an elbow or using a noise reduction device such as a pipeline with suddenly changed sectional area and discontinuous acoustic impedance, the former is called a resistive muffler, the latter is called a resistive muffler, and the resistive muffler also has a composite impedance muffler, the noise is reduced mainly by using a porous sound absorption material, the sound absorption material is fixed on the inner wall of an air flow channel or is arranged in the pipeline in a certain way, so that the resistive muffler is formed, and when sound waves enter the resistive muffler, a part of sound energy rubs in pores of the porous material to be converted into heat energy to dissipate, so that the sound waves passing through the muffler are weakened. The resistive muffler looks like an electrically pure resistive circuit, and the sound absorbing material resembles a resistor. Therefore, people refer to the muffler as a resistive muffler, and the resistive muffler has good middle-high frequency noise elimination effect and poor low frequency noise elimination effect;

the invention discloses a rail transit vent silencer, which relates to the technical field of silencers and solves the problems that the rail transit vent silencer has poor silencing effect and can not adjust the silencing effect at any time according to the noise. The utility model provides a rail transit vent silencer, includes shell, processing tank, amortization piece and first check valve, the symmetry is equipped with the processing tank in the shell lateral wall, the inside of processing tank is provided with the amortization piece, the shell lateral wall be equipped with will the processing tank with the inside first check valve that is linked together of shell, the upper end of shell is provided with the vent, the inboard fixed mounting of vent has the connecting block, the inboard fixed mounting of connecting block has the connecting rod. Said invention uses the first baffle plate to make ninety degree rotation, and is matched with the second baffle plate fixedly connected, so that it can add blocking device, and when the flow rate is too high, it can timely regulate and add blocking device to reduce treatment so as to ensure silencing effect.

However, the above-mentioned patent has the following disadvantages:

firstly, wind at the track traffic place can carry a large amount of dust and impurities due to environmental factors, when entering the muffler, the wind can remain on the silencing block, the silencing efficiency can be reduced due to long-time accumulation, and even the silencing block is blocked, so that the normal circulation of the wind is affected;

second, the silencing block cannot be cleaned in real time, long-term dust and sundries are accumulated, the service life of the silencing block can be reduced, the replacement frequency is high, and the cost is high.

Disclosure of Invention

The invention aims to provide a track traffic vent muffler for solving the problems in the background art.

The invention provides a track traffic vent silencer which comprises an inclined pipeline, wherein an air inlet pipe is fixedly connected to one side of the top of the inclined pipeline, an air outlet pipe is fixedly connected to one side of the bottom of the inclined pipeline, a plurality of vibration components are vertically arranged in the inclined pipeline, noise reduction cotton is fixedly connected to one side of the vibration components close to the air inlet pipe, each noise reduction cotton is correspondingly provided with a connecting pipe, a spray head is fixedly connected to one side of the connecting pipe facing the noise reduction cotton, the end parts of the connecting pipes extend to the outer part of the inclined pipeline, a plurality of connecting pipe end parts are jointly connected with a water inlet component, a drainage groove is fixedly formed in the inner wall of the bottom of the inclined pipeline, the drainage groove extends to the pipe opening of the air outlet pipe, a sealing ring is arranged on the surface of the inner wall of the inclined pipeline, which is in contact with the noise reduction cotton, and a vacuum cavity is formed in the sealing ring.

Preferably, the water drainage tank top is provided with multiunit water inlet channel, every group water inlet channel all includes first through-hole and second through-hole, first through-hole and second through-hole respectively with the cavity intercommunication in the both sides side of amortization cotton.

Preferably, an elastic telescopic pipe is arranged at the outlet of the water draining groove on the air outlet pipe, the end part of the elastic telescopic pipe is fixedly connected with a sealing cover, and an electric control valve is arranged on the inner wall of the air outlet pipe.

Preferably, the vibration assembly comprises a mounting ring, a plurality of springs are fixedly connected to the mounting ring, and the ends of the springs are fixedly connected with the silencing cotton.

Preferably, the water inlet assembly comprises a water inlet pipe and a water pump, one end of the water inlet pipe is mutually communicated with a plurality of connecting pipes, the other end of the water inlet pipe is connected with the water pump, and a water suction pipe is fixedly connected to one side, far away from the water inlet pipe, of the water pump.

Preferably, a water storage tank is fixedly connected to one side, away from the water pump, of the water suction pipe.

Preferably, a filter screen is arranged at the top of the water storage tank.

Preferably, a guide pipe is arranged between the air inlet pipe and the inclined pipeline, and a silencing layer is fixedly connected to the inner wall of the guide pipe.

Preferably, the pipe orifice of the air outlet pipe is clamped with a dehumidifying sleeve.

Compared with the prior art, the invention has the beneficial effects that:

(1) According to the invention, the silencing cotton in the inclined pipeline is vertically arranged, which means that an included angle area is formed between the bottom of the silencing cotton and the bottom wall of the inclined pipeline, the wind speed on the included angle area, the wind pressure above the wind pressure and the wind speed are larger, when the wind quantity is enough, the wind pressure can drive the vibration component, and the vibration component is used for driving the silencing cotton to vibrate, so that impurities such as dust and the like remained in the silencing cotton drop, the silencing cotton is cleaned in real time, the silencing effect of the silencing cotton is guaranteed, the water inlet component can be started at fixed time when the weather temperature is higher, and the cleaning mode is enhanced at the moment: the subassembly of intaking can be through the shower nozzle, sprays water on the amortization cotton, thoroughly cleans the amortization cotton, and the vibrations effect of collocation vibrations subassembly can improve the activity of moisture on the amortization cotton, improves clean effect, and the vibrations effect of vibrations subassembly can be convenient for sewage shake off from the amortization cotton, and the sewage that shakes off enters into the water drainage tank, then discharges.

(2) Under normal mode, owing to the existence of water drainage tank, and the through tuber pipe of water drainage tank, wind can blow off from the mouth of pipe of tuber pipe along water drainage tank, and the wind is just directly discharged through amortization cotton this moment, in order to avoid this kind of condition, need to bin ponding in advance in the water drainage tank on the tuber pipe, then seal through sealed lid, and water can collect the dust debris that shakes off, and gives sound insulation effectually.

(3) When the wind enters from the wind inlet pipe, the wind speed can be reduced through the guide pipe, so that the contact time of the wind and the silencing cotton is prolonged, the silencing effect is improved, and the silencing layer can absorb noise when the wind collides with the guide pipe, so that the silencing effect is further improved.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings that are needed in the description of the embodiments or the prior art will be briefly described, and it is obvious that the drawings in the description below are some embodiments of the present invention, and other drawings can be obtained according to the drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic diagram of the overall structure of the present invention;

FIG. 2 is a schematic cross-sectional view of an inclined pipeline in accordance with the present invention;

FIG. 3 is an enlarged view at A in FIG. 2;

FIG. 4 is an enlarged view at B in FIG. 2;

fig. 5 is an enlarged view at C in fig. 2.

In the figure: 1. tilting the pipeline; 2. an air inlet pipe; 3. an air outlet pipe; 301. a dehumidifying sleeve; 302. an electric control valve; 4. silencing cotton; 401. a seal ring; 5. a connecting pipe; 501. a water inlet pipe; 502. a water pump; 503. a water pumping pipe; 504. a spray head; 6. a drainage channel; 601. a first port; 602. a second port; 7. sealing cover; 701. an elastic telescopic tube; 8. a mounting ring; 801. a spring; 9. a water storage tank; 901. a filter screen; 10. a guide tube.

Detailed Description

The following description of the embodiments of the present invention will be made apparent and fully in view of the accompanying drawings, in which some, but not all embodiments of the invention are shown.

The components of the embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations. Thus, the following detailed description of the embodiments of the invention, as presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention.

All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.

In the description of the present invention, it should be noted that the directions or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present invention and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art.

Referring to fig. 1-5, an embodiment of the invention provides a muffler for a track traffic vent, which comprises an inclined pipeline 1, wherein an air inlet pipe 2 is fixedly connected to one side of the top of the inclined pipeline 1, an air outlet pipe 3 is fixedly connected to one side of the bottom of the inclined pipeline 1, a plurality of vibration components are vertically arranged in the inclined pipeline 1, noise reduction cotton 4 is fixedly connected to one side of the vibration components close to the air inlet pipe 2, each noise reduction cotton 4 is correspondingly provided with a connecting pipe 5, a spray head 504 is fixedly connected to one side of the connecting pipe 5 facing the noise reduction cotton 4, the end parts of the connecting pipes 5 extend to the outside of the inclined pipeline 1, water inlet components are commonly connected to the end parts of the plurality of connecting pipes 5, a water drainage groove 6 is fixedly arranged on the inner wall of the bottom of the inclined pipeline 1, the water drainage groove 6 extends to a pipe mouth of the air outlet pipe 3, a sealing ring 401 is arranged on the surface of the inner wall of the inclined pipeline 1, which is in contact with the noise reduction cotton 4, and a vacuum cavity is arranged in the sealing ring 401.

An elastic telescopic pipe 701 is arranged at the outlet of the water draining groove 6 on the air outlet pipe 3, the end part of the elastic telescopic pipe 701 is fixedly connected with a sealing cover 7, and an electric control valve 302 is arranged on the inner wall of the air outlet pipe 3.

Specific: wind gets into from air-supply line 2, runs through a plurality of amortization cotton 4 in the inclined duct 1 and carries out the amortization, then discharge from the mouth of pipe of play tuber pipe 3, see fig. 2, the amortization cotton 4 in the inclined duct 1 is vertical to be set up, this just means to have the contained angle district between amortization cotton 4 bottom and the inclined duct 1 bottom wall, wind speed and wind pressure more above the contained angle district are wind pressure and wind speed are bigger, when the amount of wind is big enough, the vibration subassembly can be driven to the wind pressure, the vibration subassembly is used for driving amortization cotton 4 and produces vibrations, thereby impurity such as the remaining dust of messenger amortization cotton 4 drops, clean amortization cotton 4 in real time, guarantee amortization effect of amortization cotton 4, and can regularly start the subassembly of intaking when weather temperature is higher, be in the enhancement cleaning mode this moment, under the enhancement cleaning mode: the water inlet assembly can spray water on the silencing cotton 4 through the spray head 504, thoroughly clean the silencing cotton 4, the activity of the water on the silencing cotton 4 can be improved by matching with the vibration effect of the vibration assembly, the cleaning effect is improved, the vibration effect of the vibration assembly can facilitate the shaking off of sewage from the silencing cotton 4, and the shaken off sewage enters the drainage tank 6 and is discharged;

in the normal mode, due to the existence of the drainage groove 6, the drainage groove 6 is directly communicated with the air outlet pipe 3, wind can be blown out from the pipe orifice of the air outlet pipe 3 along the drainage groove 6, and at the moment, the wind is directly discharged without passing through the noise reduction cotton 4, so that in order to avoid the situation, accumulated water is stored in the drainage groove 6 on the air outlet pipe 3 in advance, and then the drainage groove is sealed by the sealing cover 7, so that the water can collect the shaken-off dust and sundries, and the sound insulation effect is good;

the sealing ring 401 can block ventilation and has a certain sound insulation effect, the vacuum cavity inside the sealing ring 401 provides a vibration space for vibration of the noise reduction cotton 4, and the tightness of the noise reduction cotton 4 and the inclined pipeline 1 is effectively ensured;

in the normal mode, the sealing cover 7 is sealed with the water draining groove 6 through the elastic telescopic pipe 701, and in the enhanced cleaning mode, the electric control valve 302 is closed, at the moment, wind and cleaned water are discharged along the water draining groove 6, and under the action of water pressure and wind pressure, the elastic telescopic pipe 701 extends outwards, so that the sealing cover 7 is opened, and the automatic closing of the sealing cover 7 is realized.

The water drainage tank 6 top is provided with multiunit water inlet channel, and every group water inlet channel all includes first through-hole 601 and second through-hole 602, and first through-hole 601 and second through-hole 602 communicate with the cavity of the both sides side of amortization cotton 4 respectively.

Specific: the first port 601 and the second port 602 are respectively located at both sides of the noise damping cotton 4, so that dust and impurities and moisture at both sides of the noise damping cotton 4 can be guided, and the dust and impurities and moisture can enter the drainage tank 6.

The vibration component comprises a mounting ring 8, a plurality of springs 801 are fixedly connected to the mounting ring 8, the ends of the springs 801 are fixedly connected with the silencing cotton 4, and in the setting, the springs 801 are used for adapting to vibration of the silencing cotton 4.

The subassembly that intakes includes inlet tube 501, water pump 502, and inlet tube 501 one end communicates each other with a plurality of connecting pipes 5, and the inlet tube 501 other end links to each other with water pump 502, and one side fixedly connected with drinking-water pipe 503 of inlet tube 501 is kept away from to water pump 502 in this setting, drinking-water pipe 503 and outside water source intercommunication, and water pump 502 is arranged in sending into connecting pipe 5 with water through inlet tube 501 to realize the water spray.

One side fixedly connected with catch basin 9 that water pump 502 was kept away from to the drinking-water pipe 503, and catch basin 9 top is provided with filter screen 901, and in this setting, catch basin 9 can collect the rainwater and provide the water source for water pump 502, improves water source utilization ratio, and filter screen 901 can filter debris, avoids debris to enter into in the catch basin 9.

A guide pipe 10 is arranged between the air inlet pipe 2 and the inclined pipeline 1, and a silencing layer is fixedly connected to the inner wall of the guide pipe 10.

Specific: when wind gets into from the air-supply line 2, can reduce the wind speed through the stand pipe 10 for the contact time of wind and amortization cotton 4 promotes, improves the amortization effect, and when wind and stand pipe 10 striking, the amortization layer can the noise absorption, further promotes the amortization effect.

The pipe orifice of the air outlet pipe 3 is clamped with a dehumidifying sleeve 301, and the dehumidifying sleeve 301 in the arrangement can be made of a water absorbing material, such as sponge-like products, so that moisture in wind can be absorbed, and the humidity of the discharged wind is at a normal value.

Working principle: wind gets into from air-supply line 2, runs through a plurality of amortization cotton 4 in the inclined duct 1 and carries out the amortization, then discharge from the mouth of pipe of play tuber pipe 3, see fig. 2, the amortization cotton 4 in the inclined duct 1 is vertical to be set up, this just means to have the contained angle district between amortization cotton 4 bottom and the inclined duct 1 bottom wall, wind speed and wind pressure more above the contained angle district are wind pressure and wind speed are bigger, when the amount of wind is big enough, the vibration subassembly can be driven to the wind pressure, the vibration subassembly is used for driving amortization cotton 4 and produces vibrations, thereby impurity such as the remaining dust of messenger amortization cotton 4 drops, clean amortization cotton 4 in real time, guarantee amortization effect of amortization cotton 4, and can regularly start the subassembly of intaking when weather temperature is higher, be in the enhancement cleaning mode this moment, under the enhancement cleaning mode: the water inlet assembly can spray water on the silencing cotton 4 through the spray head 504, thoroughly clean the silencing cotton 4, the activity of the water on the silencing cotton 4 can be improved by matching with the vibration effect of the vibration assembly, the cleaning effect is improved, the vibration effect of the vibration assembly can facilitate the shaking off of sewage from the silencing cotton 4, and the shaken off sewage enters the drainage tank 6 and is discharged; under normal mode, because water drainage tank 6 exists, and water drainage tank 6 directly lets out tuber pipe 3, wind can blow off from the mouth of pipe of tuber pipe 3 along water drainage tank 6, and wind does not pass through amortization cotton 4 and just directly discharges this moment, in order to avoid this kind of condition, need to store up ponding in advance in the water drainage tank 6 on the tuber pipe 3, then seal through sealed lid 7, and water can collect the dust debris that shakes off, and gives sound insulation effectually.

Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present invention, and not for limiting the same; although the invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some or all of the technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit of the invention.

Claims

1. Rail transit vent silencer, including slope pipeline (1), its characterized in that: the utility model discloses a pipeline structure, including inclined pipeline (1), connecting pipe (5), water drainage tank (6) have been seted up to inclined pipeline (1) bottom one side fixedly connected with air-out pipe (3), inside vertical being provided with of inclined pipeline (1) is provided with a plurality of vibrations subassembly, vibrations subassembly is close to one side fixedly connected with amortization cotton (4) of air-out pipe (2), every amortization cotton (4) all correspond and are provided with a connecting pipe (5), one side fixedly connected with shower nozzle (504) towards amortization cotton (4) on connecting pipe (5), connecting pipe (5) tip is epitaxial to inclined pipeline (1) outside, a plurality of connecting pipe (5) tip is connected with water inlet module jointly, water drainage tank (6) have been seted up to inclined pipeline (1) bottom inner wall is fixed, water drainage tank (6) extend to the mouth of pipe (3), be provided with sealing ring (401) on the face that inclined pipeline (1) inner wall and amortization cotton (4) contradict, sealing ring (401) inside has the vacuum chamber.

2. A rail transit vent muffler as defined in claim 1, wherein: the top of the drainage tank (6) is provided with a plurality of groups of water inlet channels, each group of water inlet channels comprises a first through hole (601) and a second through hole (602), and the first through hole (601) and the second through hole (602) are respectively communicated with cavities on two sides of the silencing cotton (4).

3. A rail transit vent muffler as defined in claim 1, wherein: an elastic telescopic pipe (701) is arranged at the outlet of a drainage groove (6) on the air outlet pipe (3), a sealing cover (7) is fixedly connected to the end part of the elastic telescopic pipe (701), and an electric control valve (302) is arranged on the inner wall of the air outlet pipe (3).

4. A rail transit vent muffler as defined in claim 1, wherein: the vibration assembly comprises a mounting ring (8), wherein a plurality of springs (801) are fixedly connected to the mounting ring (8), and the ends of the springs (801) are fixedly connected with the silencing cotton (4).

5. A rail transit vent muffler as defined in claim 1, wherein: the water inlet assembly comprises a water inlet pipe (501) and a water pump (502), one end of the water inlet pipe (501) is mutually communicated with a plurality of connecting pipes (5), the other end of the water inlet pipe (501) is connected with the water pump (502), and one side, far away from the water inlet pipe (501), of the water pump (502) is fixedly connected with a water suction pipe (503).

6. A rail transit vent muffler as defined in claim 5, wherein: one side of the water suction pipe (503) far away from the water pump (502) is fixedly connected with a water storage tank (9).

7. A rail transit vent muffler as defined in claim 6, wherein: a filter screen (901) is arranged at the top of the water storage groove (9).

8. A rail transit vent muffler as defined in claim 1, wherein: a guide pipe (10) is arranged between the air inlet pipe (2) and the inclined pipeline (1), and a silencing layer is fixedly connected to the inner wall of the guide pipe (10).

9. A rail transit vent muffler as defined in claim 1, wherein: the pipe orifice of the air outlet pipe (3) is clamped with a dehumidifying sleeve (301).