CN206889213U - A kind of ucleotides vavuum pump muffler - Google Patents

Abstract

The utility model discloses a kind of ucleotides vavuum pump muffler, it is characterized in that, it includes admission line, admission line afterbody is socketed first flange, admission line is connected by first flange with muffler body front end, the front end of muffler body is provided with diffusion case, diffusion case tail end is socketed second flange, diffusion case passes through second flange and sleeve pipe connection, cannula end protrusion muffler body is set, filled polytetrafluoroethylene copolymer of fiber suede in sleeve pipe, sleeve pipe are provided with some apertures, are uniformly distributed between sleeve pipe and muffler body provided with four pieces of baffle plates；Positive effect of the present utility model is：Aperture is eliminated the noise, and jet noise spectrum shifts to high frequency or hyperfrequency so that the audible noise composition in frequency spectrum substantially reduces, and is filled with polytetrafluoroethylene fibre suede so as to reduce the interference to people and injure the inside of sleeve pipe, absorbs sour gas anticorrosion, reduce maintenance cost；Muffler body and support can rotate against, and overall structure is flexible.

Description

A kind of ucleotides vavuum pump muffler

Technical field

Silencer for gas flow technical field is the utility model is related to, specifically a kind of ucleotides vavuum pump muffler.

Background technology

Vavuum pump muffler is the exhaust noise equipment for reducing vavuum pump.Vacuum pump discharges silencer be according to it is anti-, Spray, resistance composite sound damping principle developed, have sound deadening capacity greatly, small volume, in light weight, silencing pot use stainless steel making, be not easy The advantages of corroding and be easy for installation.The heating power such as boiler that vacuum pump discharges silencer is mainly used in generating department, steam turbine are set Effective noise elimination of standby discharge of steam, at the same be also widely used in the industrial boiler steam discharge such as oil, chemical industry, metallurgy, weaving and Other gas discharges are eliminated the noise.

Vavuum pump muffler can not accomplish it is noiseless, simply on the original basis noise reduction and reduce decibel.In chemical field In often occur HTHP and sour gas by situations such as, can cause muffler performance reduce, noise reduction not significantly, pipeline It is corroded.

Utility model content

The purpose of this utility model is to be not applied for HTHP and sour gas for muffler in the prior art The defects of body passes through, it is desirable to provide a kind of ucleotides vavuum pump muffler, acid waste gas can be absorbed, steam uniformly spreads, Reduce the interference to people and maintenance cost.

The utility model is that solve above-mentioned technical problem by following technical proposals：A kind of ucleotides vavuum pump disappears Sound device, it is characterised in that it includes an admission line 1, and the afterbody of the admission line 1 is socketed a first flange 2, the air inlet Pipeline 1 is connected by first flange 2 with the top of the front end of muffler body 3, and the both ends that are shaped as of the muffler body 3 are opened The cylinder of mouth, the opening of the front end of muffler body 3 match with admission line 1, the opening position of the rear end of muffler body 3 In center, the front portion of the muffler body 3 is provided with a diffusion case 4, and some expanded metal laths are filled with the diffusion case 4, described The tail end of diffusion case 4 is socketed a second flange 5, and the diffusion case 4 is fixedly connected by second flange 5 with jacket pipe 6, the folder Sleeve pipe 6 is located at the center of muffler body 3, and the external diameter of the jacket pipe 6 matches with the opening of the rear end of muffler body 3, described The tail end that the tail end of jacket pipe 6 protrudes from muffler body 3 is set, and the inside of the jacket pipe 6 is filled with fibrillated polytetrafluoroethylene Suede 7 is tieed up, the jacket pipe 6 is provided with some apertures 8, and the aperture 8 is evenly distributed on the outer wall of jacket pipe 6, the jacket pipe 6 It is uniformly distributed in ring dress space between muffler body 3 provided with four pieces of baffle plates 9；

It also includes a pair of brackets 10, and the support 10 is shaped as circular arc of the angle more than 180 °, the support 10 Upper end open size is less than the external diameter of muffler body 3, and the center of the bottom of support 10 is provided with mounting hole 11, the support 10 Bottom to both sides extension be provided with support feet 12；

Four pieces of baffle plates 9 are installed in staggering successively in muffler body 3 90 °.

Positive effect of the present utility model is：Eliminated the noise using aperture, jet noise spectrum shifts to high frequency or superelevation Frequently so that the audible noise composition in frequency spectrum substantially reduces, so as to reduce the interference and injury to people；Acoustic energy is in porous material Friction changes into heat energy and discharged in hole so that is weakened by the sound wave of silencer, while increases resistance, reduces steam energy Amount；The inside of sleeve pipe is filled with polytetrafluoroethylene fibre suede, absorbs sour gas anticorrosion, reduces maintenance cost；Muffler master Body and support can rotate against, and overall structure is flexible.

Brief description of the drawings

Fig. 1 is overall structure diagram of the present utility model；

Fig. 2 is the structural representation of muffler body in the utility model；

Fig. 3 is the side sectional view of muffler body in the utility model.

Reference

1. admission line；

2. first flange；

3. muffler body；

4. diffusion case；

5. second flange；

6. sleeve pipe；

7. polytetrafluoroethylene fibre suede；

8. aperture；

9. baffle plate；

10. support；

11. mounting hole；

12. support feet.

Embodiment

With reference to embodiment and accompanying drawing, the utility model is described in further detail, but reality of the present utility model The mode of applying is not limited only to this.

The utility model aims to provide a kind of ucleotides vavuum pump muffler, it is characterised in that it includes an air inlet pipe Road 1, the afterbody of the admission line 1 are socketed a first flange 2, and the admission line 1 passes through first flange 2 and muffler body The top connection of 3 front ends, the cylinder for being shaped as a both ends open of the muffler body 3, the front end of the muffler body 3 Provided with a diffusion case 4, the tail end of the diffusion case 4 is socketed a second flange 5, and the diffusion case 4 passes through second flange 5 and sleeve pipe 6 are fixedly connected, and the tail end of described sleeve pipe 6 protrudes from the tail end setting of muffler body 3, and the inside of described sleeve pipe 6 is filled with poly- Tetrafluoroethylene fiber suede 7, described sleeve pipe 6 are provided with some apertures 8, in the ring dress space between described sleeve pipe 6 and muffler body 3 It is uniformly distributed and is provided with four pieces of baffle plates 9.

When it is implemented, the diffusion case 4 is used to carry out secondary diffusion to steam, multilayer steel plates are set in diffusion case 4 Net is stacked together, and when sound wave enters diffusion case 4 by composite steel expanded metals, a part of acoustic energy rubs in the hole of porous material Wiping changes into heat energy and discharged so that is weakened by the sound wave of silencer, while increases resistance, reduces steam energy, and cause Steam in diffusion case 4 is dispersed, plays a part of aperture noise elimination.

Sleeve pipe 6 uses aperture noise reduction jacket pipe, and structure is a straight tube, and many apertures are drilled with tube wall, and principle is to spray The frequency spectrum of gas noise is foundation, keeps the gross area of spout constant, is substituted with many small spouts, when air-flow is through small holes, The frequency spectrum of jet noise will shift to high frequency or hyperfrequency so that the audible noise composition in frequency spectrum substantially reduces, so as to reduce Interference and injury to people.

When it is implemented, it also includes a pair of brackets 10, the circular arc for being shaped as angle and being more than 180 ° of the support 10, institute The upper end open for stating support 10 is dimensioned slightly smaller than the external diameter of muffler body 3, and the center of the bottom of support 10 is provided with mounting hole 11, the bottom of the support 10 is provided with support feet 12 to both sides extension.

When it is implemented, the muffler body 3 can be set up over the mount 10, the muffler body 3 and support 10 can To rotate against, rotation muffler body 3 is the height of adjustable admission line 1, the support 10 by screw or other fix Device is fixed on work top through mounting hole 11.

When it is implemented, four pieces of baffle plates 9 are installed in staggering successively in muffler body 3 90 ° so that steam is in noise reduction Device main body 3 spreads more uniform.

Above content is to combine specific preferred embodiment further detailed description of the utility model, it is impossible to Assert that the utility model specific implementation is confined to these above-mentioned explanations.For the common skill of the utility model art For art personnel, without departing from the concept of the premise utility, some simple deduction or replace can also be made, all should It is considered as belonging to the scope of protection of the utility model.

Claims (1)

1. a kind of ucleotides vavuum pump muffler, it is characterised in that it includes an admission line（1）, the admission line（1） Afterbody be socketed a first flange（2）, the admission line（1）Pass through first flange（2）With muffler body（3）Front end it is upper Portion connects, the muffler body（3）The cylinder for being shaped as a both ends open, the muffler body（3）The opening of front end With admission line（1）Match, the muffler body（3）The opening of rear end is centrally located, the muffler body（3）Front portion Provided with a diffusion case（4）, the diffusion case（4）In be filled with some expanded metal laths, the diffusion case（4）Tail end socket one second Flange（5）, the diffusion case（4）Pass through second flange（5）With jacket pipe（6）It is fixedly connected, the jacket pipe（6）Positioned at noise reduction Device main body（3）Center, the jacket pipe（6）External diameter and muffler body（3）The opening of rear end matches, the jacket pipe （6）Tail end protrude from muffler body（3）Tail end set, the jacket pipe（6）Inside be filled with fibrillated polytetrafluoroethylene Tie up suede（7）, the jacket pipe（6）Provided with some apertures（8）, the aperture（8）It is evenly distributed on jacket pipe（6）Outer wall on, The jacket pipe（6）With muffler body（3）Between ring dress space in be uniformly distributed provided with four pieces of baffle plates（9）；

It also includes a pair of brackets（10）, the support（10）The angle that is shaped as be more than 180 ° of circular arc, the support（10） Upper end open size be less than muffler body（3）External diameter, the support（10）The center of bottom is provided with mounting hole（11）, institute State support（10）Bottom to both sides extension be provided with support feet（12）；

Four pieces of baffle plates（9）In muffler body（3）Inside stagger successively 90 ° and install.