CN213575591U - Flange low noise diffuses butterfly valve - Google Patents

Abstract

The utility model relates to a flange low noise diffuses butterfly valve, which comprises a valve body, the liquid outlet and the inlet of valve body both sides, install the worm wheel drive who is used for driving the valve rod that support and valve rod top on the valve body are connected, the liquid outlet department welded connection of valve body has the muffler, the muffler includes the supplementary amortization pipe that the outside cover was established and the main amortization pipe with valve body and flange joint, supplementary amortization pipe is for being divided into the three-layer, including the inboard porous sleeve pipe of supplementary amortization pipe, the cotton sleeve pipe of glass at middle part and outside support sleeve pipe, main amortization pipe includes the inner tube layer, the inner tube layer is equipped with the buffer layer toward the overcoat, the buffer layer outside cover is equipped with the transmission layer, be equipped with outside the transmission layer with the annular rubber damping piece coaxial setting of transmission layer and along main amortization pipe length evenly distributed, provide a simple structure, can the at, The high flange low noise of security performance diffuses the butterfly valve.

Description

Flange low noise diffuses butterfly valve

Technical Field

The utility model relates to the technical field of valves, in particular to butterfly valve is diffused to flange low noise.

Background

The butterfly valve is a valve which uses a disc type opening and closing piece to rotate back and forth by about 90 degrees to open, close or adjust the medium flow, the butterfly valve has smaller structural length and overall height and faster opening and closing speed, so that the butterfly valve is widely applied to various occasions. However, the quick opening process of the butterfly valve also brings another problem, the quick opening butterfly valve can form large fluid impact in the opening process, fluid gushing from a channel opened by the butterfly valve can quickly impact a valve body on the liquid outlet side of the butterfly valve, large fluid dynamic noise is inevitably brought, the generated noise can be spread outwards through a pipeline connected with the liquid outlet side, and operators in the space where the valve is located are greatly influenced.

SUMMERY OF THE UTILITY MODEL

Not enough to prior art exists, the utility model aims to provide a simple structure, the higher flange low noise diffuse butterfly valve of noise, security that send when can the at utmost eliminate medium impact valve body liquid outlet.

The technical scheme of the utility model is realized like this: the utility model provides a butterfly valve is diffused to flange low noise, includes the liquid outlet and the inlet of valve body, valve body both sides, installs support and valve rod on the valve body and the worm wheel drive arrangement who is used for driving the valve rod that the valve body top is connected, the liquid outlet department welded connection of valve body has the muffler, the opposite side welded connection of muffler has the flange, the muffler includes the supplementary hush pipe that the outside cover was established and the main hush pipe with valve body and flange joint, supplementary hush pipe is for divideing into the three-layer, including the cotton sleeve pipe of the inboard porous sleeve pipe of supplementary hush pipe, the glass at middle part and outside support sleeve pipe, main hush pipe includes the inner tube layer, and the inner tube layer is equipped with the buffer layer toward the overcoat, and the buffer layer outside cover is equipped with the transmission layer, is equipped with the annular rubber damping piece with the coaxial setting of transmission layer and.

By adopting the technical scheme, the vibration generated by the medium impact flowing out of the liquid outlet of the valve body is transmitted to the shock absorption layer through the inner pipe layer, the shock absorption layer primarily relaxes and absorbs the generated vibration and can reduce the vibration to the maximum extent, the transmission layer transmits the residual vibration and noise, the transmitted vibration and noise are secondarily absorbed by the annular rubber damping block, the vibration is reduced to the maximum extent by the main silencing pipe and the noise is primarily slowed down, the auxiliary silencing pipe is arranged, the residual noise is absorbed by the glass cotton sleeve pipe after passing through the through hole on the porous sleeve pipe, the fiber inside the glass cotton sleeve pipe is fluffy and staggered to form a large number of tiny gaps, the sound absorption characteristic is good, the medium impact noise in the valve is eliminated to the maximum extent through the silencer, the noise pollution of the valve to the space is reduced, and the support sleeve pipe is used for protecting the silencer, prevent that the muffler is destroyed in the collision of hard thing, guarantee that the muffler can normal use.

The utility model discloses further set up to: the silencer inner wall one side is equipped with the fixed plate that encircles the silencer central line setting, fixed plate one side is connected with the filtration sleeve pipe, fixed plate and filtration sleeve pipe welded connection.

Through adopting above-mentioned technical scheme, filter the medium that the sleeve pipe flows to the valve body liquid outlet through setting up, prevent that the impurity of doping in the medium from influencing the medium circulation on attaching to the pipe wall.

The utility model discloses further set up to: and welding spots for supporting the fixing plate are additionally arranged at the positions of two sides of the fixing plate, which are adjacent to the inner pipe layer of the silencer.

Through adopting above-mentioned technical scheme, support the impact of medium to the fixed plate when the fixed plate is opened in order to deal with the valve through add the solder joint in fixed plate both sides, prevent that the fixed plate from not enduring the impact fracture.

The utility model discloses further set up to: the shape of the opening of the porous sleeve is in a regular six-deformation shape.

By adopting the technical scheme, the open holes of the porous sleeve are matched with the annular rubber damping blocks to form a plurality of sealed small chambers, so that air flow is prevented, sound waves are blocked, and the sound absorption coefficient is improved.

The utility model discloses further set up to: and a CVC flame-retardant fabric covering the silencer is arranged on the outer side of the silencer.

By adopting the technical scheme, the combustion is blocked by adding the CVC flame-retardant fabric, so that the fire safety of the silencer is improved.

Drawings

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

FIG. 1 is a cross-sectional view of a flange low noise bleed butterfly valve according to an embodiment of the present invention;

fig. 2 is a partial enlarged view of the flange low noise diffusion butterfly valve a according to the embodiment of the present invention.

Reference numerals: 1. a valve body; 2. a liquid outlet; 3. a liquid inlet; 4. a support; 5. a valve stem; 6. a worm gear drive; 8. a muffler; 9. a flange; 10. an auxiliary muffler pipe; 11. a main muffler pipe; 12. a porous sleeve; 13. a glass wool sleeve; 14. a support sleeve; 15. an inner tube layer; 17. a shock-absorbing layer; 18. a transfer layer; 19. an annular rubber damping block; 20. a fixing plate; 21. a filter sleeve; 22. welding spots; 23. CVC flame retardant fabric.

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 efforts belong to the protection scope of the present invention.

As shown in fig. 1 to 2, the utility model discloses a flange low-noise diffusion butterfly valve, which comprises a valve body 1, a liquid outlet 2 and a liquid inlet 3 at two sides of the valve body, a support 4 and a valve rod 5 mounted on the valve body, and a worm wheel driving device 6 connected with the top end of the valve rod 5 and used for driving the valve rod 5, wherein a silencer 8 is welded at the liquid outlet 2 of the valve body 1, a flange 9 is welded at the other side of the silencer 8, the silencer 8 comprises an auxiliary silencing pipe 10 sleeved at the outer side and a main silencing pipe 11 connected with the valve body 1 and the flange 9, the auxiliary silencing pipe 10 is divided into three layers, the auxiliary silencing pipe comprises a porous sleeve 12 at the inner side of the auxiliary silencing pipe 10, a glass wool sleeve 13 at the middle part and a supporting sleeve 14 at the outer part, the main silencing pipe 11 comprises an inner pipe layer 15, the inner pipe 15 is sleeved with a shock absorption layer 17, and a transmission layer 18, the transmission layer 18 is externally provided with annular rubber damping blocks 19 which are coaxially arranged with the transmission layer 18 and are uniformly distributed along the length of the main silencing pipe 11.

The vibration generated by the medium impact flowing out of the liquid outlet 2 of the valve body 1 is transmitted to the shock absorption layer 17 through the inner pipe layer 15, the shock absorption layer 17 primarily relaxes and absorbs the generated vibration and can reduce the vibration to the maximum extent, the transmission layer 18 transmits the residual vibration and noise, the transmitted vibration and noise are secondarily absorbed through the annular rubber damping block 19, the vibration is reduced to the maximum extent by the main silencing pipe 11 and the noise is primarily slowed down, the auxiliary silencing pipe 10 is arranged, the residual noise is absorbed by the glass wool sleeve pipe 13 after passing through the through hole on the porous sleeve pipe 12, the fibers inside the glass wool sleeve pipe 13 are staggered to form a large number of tiny gaps, the sound absorption characteristic is good, the medium impact noise in the valve is eliminated to the maximum extent through the silencer 8, the noise pollution of the valve to the space is reduced, and the support sleeve pipe 14 is used for protecting the silencer 8, prevent that the muffler 8 is destroyed in the collision of hard thing, guarantee that muffler 8 can normal use.

8 inner wall one side of muffler is equipped with the fixed plate 20 that encircles 8 central lines of muffler and set up, fixed plate 20 one side is connected with filtering sleeve 21, fixed plate 20 and filtering sleeve 21 welded connection filter the medium that the casing 21 flows out to valve body 1 liquid outlet 2 through setting up, prevent that the impurity of doping influences the medium circulation on attaching to the pipe wall in the medium.

The two sides of the fixing plate 20 are provided with welding points 22 adjacent to the inner pipe 15 of the silencer 8 for supporting the fixing plate 20, and the fixing plate 20 is supported by the welding points 22 on the two sides of the fixing plate 20 to cope with the impact of the medium on the fixing plate 20 when the valve is opened, so that the fixing plate 20 is prevented from being broken due to the impact.

The shape of the opening of the porous sleeve 12 is in a regular-six-deformation shape, and the opening of the porous sleeve 12 is matched with the annular rubber damping block 19 to form a plurality of sealed small chambers, so that air flow is prevented, sound waves are blocked, and the sound absorption coefficient is improved.

The fire-retardant surface fabric 23 of CVC who wraps muffler 8 still is equipped with in the muffler 8 outside, through adding establish the fire-retardant surface fabric 23 of CVC and come the separation burning, promote muffler 8's fire control security.

The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (5)

1. The utility model provides a flange low noise diffuses butterfly valve, includes liquid outlet (2) and inlet (3) of valve body (1), valve body both sides, installs support (4) and valve rod (5) top on the valve body and is connected be used for driving worm wheel drive (6) of valve rod (5), its characterized in that: a silencer (8) is welded at the liquid outlet (2) of the valve body (1), the other side of the silencer (8) is welded with a flange (9), the silencer (8) comprises an auxiliary silencing pipe (10) sleeved on the outer side and a main silencing pipe (11) connected with the valve body (1) and the flange (9), the auxiliary silencing pipe (10) is divided into three layers, and comprises a porous sleeve (12) at the inner side of the auxiliary silencing pipe (10), a glass wool sleeve (13) at the middle part and an external support sleeve (14), main hush pipe (11) are including interior hose lining (15), and interior hose lining (15) are equipped with shock-absorbing layer (17) toward the overcoat, and shock-absorbing layer (17) outside cover is equipped with transfer layer (18), and transfer layer (18) are equipped with outward and set up with transfer layer (18) coaxial and along main hush pipe (11) length evenly distributed's annular rubber damping piece (19).

2. The flange low noise bleeding butterfly valve of claim 1, wherein: muffler (8) inner wall one side is equipped with fixed plate (20) that encircle muffler (8) central line and set up, fixed plate (20) one side is connected with filtering sleeve pipe (21), fixed plate (20) and filtering sleeve pipe (21) welded connection.

3. A flange low noise bleeding butterfly valve according to claim 2, wherein: and welding points (22) for supporting the fixing plate (20) are additionally arranged at the positions of two sides of the fixing plate (20) and adjacent to the inner pipe layer (15) of the silencer (8).

4. The flange low noise bleeding butterfly valve of claim 1, wherein: the shape of the opening of the porous sleeve (12) is in a positive six-deformation shape.

5. The flange low noise bleeding butterfly valve of claim 1, wherein: the outer side of the silencer (8) is also provided with a CVC flame-retardant fabric (23) covering the silencer (8).

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