CN213433721U

CN213433721U - Equipment of making an uproar falls in wet-type vacuum pump

Info

Publication number: CN213433721U
Application number: CN202022320011.1U
Authority: CN
Inventors: 王学通; 孙丽静; 赵世闯; 宰永阳; 孟庆尧
Original assignee: Suzhou Duer Oxygen Equipment Co ltd
Current assignee: Suzhou Duer Oxygen Equipment Co ltd
Priority date: 2020-10-16
Filing date: 2020-10-16
Publication date: 2021-06-15
Anticipated expiration: 2030-10-16

Abstract

The utility model discloses a wet vacuum pump noise reduction equipment, including wet vacuum pump, catch water muffler and hindering nature muffler, wherein: the exhaust end of the wet vacuum pump is connected with the steam-water separation silencer through a pipeline, and the resistive silencer is communicated with an exhaust port at the top end of the steam-water separation silencer through a guide pipe; the steam-water separation silencer divides an inner cavity into a first expansion cavity and a second expansion cavity through a partition plate, the second expansion cavity is arranged above the first expansion cavity, two first inner inserting pipes are inserted into the partition plate, and a second inner inserting pipe is arranged at an exhaust outlet at the top of the steam-water separation silencer; hindering nature muffler includes outer barrel, the inside of outer barrel is equipped with interior barrel, outer barrel outer wall is equipped with outer orifice plate, interior barrel outer wall is equipped with interior orifice plate, it is cotton to be equipped with the amortization between the inner wall of outer orifice plate and outer barrel, the casing bottom of steam-water separation muffler is equipped with the drain pipe, the utility model has the characteristics of steam-water separation is effectual, noise reduction effect is good.

Description

Equipment of making an uproar falls in wet-type vacuum pump

Technical Field

The utility model relates to a VPSA vacuum pressure swing adsorption air separation oxygenerator wet-type vacuum pump vapor-water separation falls the technical field of making an uproar, specifically is a equipment of making an uproar falls in wet-type vacuum pump.

Background

The oxygen producing vacuum pressure swing adsorption VPSA process is to produce oxygen with different nitrogen adsorbing capacity at certain temperature and different pressure with the adsorbent inside the adsorber.

The VPSA oxygen generation process is characterized in that air enters a Roots blower after mechanical impurities are removed through an air filter, the air is boosted through the Roots blower and is conveyed into an adsorber, various adsorbents (13X, aluminum oxide and lithium-based molecular sieves) are filled in the adsorber, carbon dioxide, water, most of nitrogen and a small part of oxygen in the air are adsorbed on the adsorbents, unadsorbed oxygen and a small part of impurity gas are conveyed to an oxygen buffer tank as product gas, and the product gas is pressurized through rear-end oxygen pressurization equipment to meet the pressure requirement of process production and then is output to a system. When the adsorbent in the adsorber is saturated, the saturated adsorber is communicated to a Roots vacuum pump through valve switching, a valve at the top of the adsorber is in a closed state, the adsorber is in a desorption state, the other adsorber is in an adsorption oxygen production state to ensure continuous oxygen production of the device, the saturated adsorber is in a negative pressure state after being communicated with the vacuum pump, carbon dioxide, water, most nitrogen and a small part of oxygen adsorbed on the adsorbent are pumped out of the system by the vacuum pump, the adsorbent is regenerated and prepared to enter the next cycle, and the adsorption and desorption processes are automatically controlled by controlling the opening and closing of the valve through a Programmable Logic Controller (PLC).

From the VPSA oxygen generation principle and process, the Roots blower and the Roots vacuum pump are main power equipment, the Roots blower is one of positive displacement fans, and the characteristic of the Roots blower is very suitable for the VPSA pressure swing adsorption process. Just because of its suitability, VPSA requires the use of roots machines, but roots vacuum pumps are very noisy. The wet roots vacuum pump contains a plurality of noise sources, and the following three types mainly exist: 1. the pneumatic noise radiated by the pipeline at the gas inlet end of the unstable gas source and the gas-liquid mixture exhaust end of the wet vacuum pump; 2. mechanical noise radiated when a shell, a gear, a bearing, a gas-liquid mixed medium and the like move in the wet vacuum pump; 3. the wet vacuum pump base vibrates the radiated structure-borne sound when the equipment is in operation.

The flow noise of the gas-liquid medium is the most strong and most influenced, and other noises are secondary under the normal operation of the fan.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an equipment of making an uproar falls in wet vacuum pump to solve the problem that proposes among the above-mentioned background art.

In order to solve the technical problem, the utility model provides a following technical scheme: the utility model provides a wet vacuum pump noise reduction equipment, includes wet vacuum pump, catch water muffler and resistive silencer, wherein:

the exhaust end of the wet vacuum pump is connected with a steam-water separation silencer through a pipeline,

the resistive silencer is communicated with an exhaust port at the top end of the steam-water separation silencer through a guide pipe;

the steam-water separation silencer divides the inner cavity into a first expansion cavity and a second expansion cavity through a partition plate,

the second expansion cavity is arranged above the first expansion cavity,

two first inner inserting tubes are inserted into the isolation plate,

a second inner inserting pipe is arranged at the outlet of a top exhaust port of the steam-water separation silencer;

hindering nature muffler includes outer barrel, the inside of outer barrel is equipped with interior barrel, outer barrel outer wall is equipped with outer orifice plate, interior barrel outer wall is equipped with interior orifice plate, be equipped with the amortization cotton between the inner wall of outer orifice plate and outer barrel.

Furthermore, a drain pipe is arranged at the bottom of the shell of the steam-water separation silencer and penetrates through the shell of the steam-water separation silencer to be communicated with the first expansion cavity.

Furthermore, a plurality of liquid leakage holes are uniformly distributed on the isolation plate.

Furthermore, a butterfly-shaped end socket is arranged on the bottom surface of the first expansion cavity.

Furthermore, the middle part of a guide pipe connected between the resistive silencer and the steam-water separation silencer is of an elbow structure, and the guide pipe is connected with the second inner inserting pipe.

Compared with the prior art, the utility model discloses the beneficial effect who reaches is:

1. the utility model is provided with the first expansion cavity, the second expansion cavity, the first inner insert pipe and other parts to enhance the gas-water separation effect and facilitate the discharge of collected water;

2. through being provided with hindering nature muffler, absorb the noise that steam flows through outer orifice plate, amortization cotton and hole board, the moisture in the cotton also can absorb steam of amortization simultaneously.

Drawings

The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description serve to explain the invention and not to limit the invention.

In the drawings:

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

FIG. 2 is a schematic structural view of the steam-water separating silencer of the present invention;

fig. 3 is a structural diagram of the resistive muffler of the present invention;

in the figure: 1. a wet vacuum pump; 2. a steam-water separation muffler; 21. a first expansion lumen; 22. a second expansion lumen; 23. a first inner cannula; 24. a second inner cannula; 3. a resistive muffler; 31. an outer cylinder; 32. an outer orifice plate; 33. silencing cotton; 34. an inner orifice plate; 35. an inner cylinder body.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-3, the present invention provides a technical solution: a noise reduction device for a wet vacuum pump comprises a wet vacuum pump 1, a steam-water separation silencer 2 and a resistive silencer 3,

the exhaust end of the wet vacuum pump 1 is connected with a steam-water separation silencer 2 through a pipeline,

the resistive muffler 3 is communicated with an exhaust port at the top end of the steam-water separation muffler 2 through a guide pipe;

the steam-water separation silencer 2 divides the inner cavity into a first expansion cavity 21 and a second expansion cavity 22 through a partition plate, the edge of the partition plate is fixedly connected with the inner wall of the inner cavity of the steam-water separation silencer 2,

the second expansion chamber 22 is provided above the first expansion chamber 21,

two first inner inserting tubes 23 are inserted into the isolation plate, two mounting holes matched with the first inner inserting tubes 23 are formed in the isolation plate, the two first inner inserting tubes 23 are respectively inserted into the mounting holes, and the joints of the first inner inserting tubes 23 and the mounting holes are fixed by welding, so that the stability of the first inner inserting tubes can be guaranteed.

A second inner inserting pipe 24 is fixedly arranged at the exhaust outlet at the top of the steam-water separation silencer 2;

resistive muffler 3 includes outer barrel 31, and barrel 35 in the inside of outer barrel 31 is equipped with, and interior barrel 35 passes through bracing piece fixed connection in outer barrel 31, and outer barrel 31 outer wall is equipped with outer orifice plate 32, and interior barrel 35 outer wall is equipped with interior orifice plate 34, and interior orifice plate and outer orifice plate are hollow cylindrical structure, and the equipartition aperture on the outer wall, are equipped with amortization cotton 33 between the inner wall of outer orifice plate 32 and outer barrel 31.

A plurality of liquid leakage holes are uniformly distributed on the isolation plate, and after the liquid leakage holes are formed, moisture discharged into the second expansion cavity 22 in the wet vacuum pump can enter the first expansion cavity 21 through the plurality of liquid leakage holes to be collected.

The bottom of the shell of the steam-water separation silencer 2 is provided with a drain pipe, the drain pipe penetrates through the shell of the steam-water separation silencer 2 and is communicated with the first expansion cavity 21, and water collected in the first expansion cavity 21 is conveniently discharged through the drain pipe. The bottom surface of the first expansion cavity 21 is provided with a butterfly-shaped end socket, and the special structure of the butterfly-shaped end socket facilitates guiding water bodies to the surrounding drain pipes and discharging the water bodies in the first expansion cavity 21 quickly when water bodies in the steam-water separation silencer 2 drop to the butterfly-shaped end socket.

The middle part of the guide pipe connected between the resistive silencer 3 and the steam-water separation silencer 2 is of an elbow structure, the guide pipe is connected with the second inner inserting pipe 24, the elbow structure enables gas to be discharged directionally on one hand, pneumatic noise is spread to the direction with small influence on the other hand, and the influence of noise is reduced conveniently.

The working principle is as follows: the exhaust end of the wet vacuum pump 1 is connected with the steam-water separation silencer 2, the steam-water separation silencer 2 is connected with the resistive silencer 3, water vapor in the wet vacuum pump 1 enters the first expansion cavity 21 and then enters the second expansion cavity 21, moisture in part of the water vapor in the first expansion cavity 21 and the second expansion cavity 22 is collected in the first expansion cavity 21 and the second expansion cavity 22 respectively by virtue of gravity, and the moisture in the second expansion cavity 22 flows into the first expansion cavity 21 through a leakage hole and is finally discharged through a drain pipe; because the water vapor mainly enters the second expansion cavity 22 from the first expansion cavity 21 through the two first inner inserting tubes 23, the flow rate of the water vapor is increased, the centrifugal effect is enhanced, and the gas-water separation effect of the water vapor can be improved; the rest part of water vapor enters the resistive muffler 3 through the second inner inserting pipe 24 and the guide pipe between the steam-water separation muffler 2 and the resistive muffler 3, the water vapor flows into the area between the outer pore plate 32 and the inner pore plate 34, and the silencing cotton 33 is arranged between the outer pore plate 32 and the inner wall of the outer barrel 31, so that the flowing noise of the water vapor can be absorbed and slowed down conveniently, and the water in the water vapor can be absorbed when the silencing cotton absorbs the flowing noise of the water vapor; and the pipe that connects between resistive muffler 3 and catch water muffler 2 is the elbow structure, and the elbow structure helps making gaseous directionality discharge on the one hand, keeps away from catch water muffler 2 one end from resistive muffler 3 and discharges, and pneumatic noise spreads to the direction that the influence is little on the other hand to further reduce the influence of noise.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing embodiments, or equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides a wet vacuum pump noise reduction equipment which characterized in that: including wet vacuum pump (1), catch water muffler (2) and resistive nature muffler (3), wherein:

the exhaust end of the wet vacuum pump (1) is connected with a steam-water separation silencer (2) through a pipeline,

the resistive silencer (3) is communicated with an exhaust port at the top end of the steam-water separation silencer (2) through a guide pipe;

the steam-water separation silencer (2) divides the inner cavity into a first expansion cavity (21) and a second expansion cavity (22) through a partition plate,

the second expansion cavity (22) is arranged above the first expansion cavity (21),

two first inner inserting tubes (23) are inserted into the isolation plate,

a second inner inserting pipe (24) is arranged at the exhaust outlet at the top of the steam-water separation silencer (2);

resistive muffler (3) are including outer barrel (31), barrel (35) in the inside of outer barrel (31) is equipped with, outer barrel (31) outer wall is equipped with outer orifice plate (32), interior barrel (35) outer wall is equipped with interior orifice plate (34), be equipped with between the inner wall of outer orifice plate (32) and outer barrel (31) amortization cotton (33).

2. A wet vacuum pump noise reduction apparatus according to claim 1, wherein: the bottom of the shell of the steam-water separation silencer (2) is provided with a drain pipe, and the drain pipe penetrates through the shell of the steam-water separation silencer (2) and is communicated with the first expansion cavity (21).

3. A wet vacuum pump noise reduction apparatus according to claim 1, wherein: a plurality of liquid leakage holes are uniformly distributed on the isolation plate.

4. A wet vacuum pump noise reduction apparatus according to claim 1, wherein: the bottom surface of the first expansion cavity (21) is provided with a butterfly-shaped end socket.

5. A wet vacuum pump noise reduction apparatus according to claim 1, wherein: the middle part of a guide pipe connected between the resistive silencer (3) and the steam-water separation silencer (2) is of an elbow structure, and the guide pipe is connected with a second inner inserting pipe (24).