CN210950158U

CN210950158U - Valve silencer and electronic expansion valve with same

Info

Publication number: CN210950158U
Application number: CN201921328084.6U
Authority: CN
Inventors: 贺宇辰; 冯晶
Original assignee: Zhejiang DunAn Hetian Metal Co Ltd
Current assignee: Zhejiang DunAn Hetian Metal Co Ltd
Priority date: 2019-08-15
Filing date: 2019-08-15
Publication date: 2020-07-07
Anticipated expiration: 2029-08-15

Abstract

The utility model relates to a valve muffler and have electronic expansion valve of this valve muffler, valve muffler includes: the multi-block acoustical panel, set up parallel and interval each other between the polylith acoustical panel, every a plurality of water conservancy diversion holes have been seted up on the acoustical panel, adjacent two form between the acoustical panel and mix the class chamber. Compared with the prior art, the valve silencer has the advantages that the silencing plates are arranged to form the flow mixing cavity between the adjacent silencing plates, when fluid flows through the silencing plates, large bubbles are decomposed, the fluid enters the flow mixing cavity, mixed flow and stirring are carried out in the flow mixing cavity, and the bubbles are further scattered, so that the bubbles in the fluid are fully refined, and the noise of the fluid flowing through the electronic expansion valve is reduced.

Description

Valve silencer and electronic expansion valve with same

Technical Field

The utility model relates to a valve field especially relates to valve muffler and have electronic expansion valve of this valve muffler.

Background

An expansion valve is an important component in a refrigeration system and is typically mounted between the reservoir and the evaporator. The electronic expansion valve is one of expansion valves, and controls voltage or current applied to the expansion valve by using an electric signal generated by a regulated parameter, thereby achieving the purpose of regulating the liquid supply amount.

When the electronic expansion valve is used, because the refrigerant is often in a gas-liquid mixed two-phase state, the refrigerant can be greatly accelerated when flowing through the valve port, so that the comfort of a user is affected by high noise, and particularly when large bubbles exist in the refrigerant, the intermittent high noise is easy to occur.

SUMMERY OF THE UTILITY MODEL

Accordingly, there is a need to provide a valve muffler, which can effectively eliminate the large air bubbles passing through the electronic expansion valve, thereby reducing the intermittent noise generated when the fluid passes through the electronic expansion valve.

In order to achieve the above purpose, the utility model adopts the following technical proposal: a valve muffler, the valve muffler comprising:

the multi-block acoustical panel, set up parallel and interval each other between the polylith acoustical panel, every a plurality of water conservancy diversion holes have been seted up on the acoustical panel, adjacent two form between the acoustical panel and mix the class chamber.

In one embodiment, the muffler further comprises a support body, and the valve muffling plate is disposed on the support body. The support body is used for supporting the valve sound-absorbing plate, so that the silencer is convenient to mount and dismount.

In one embodiment, the support body comprises a plurality of support rings, the support rings are stacked and form a drainage channel, and the sound-absorbing plate is arranged between every two support rings. The structure of the plurality of supporting rings is arranged, the structural diversity of the silencer is improved, the applicable scene of the silencer can be enlarged, and the convenience of the expansion of the silencing plate is improved.

In one embodiment, the diversion holes are obliquely arranged clockwise or anticlockwise by taking the center line of the silencing plate as an axis. So set up, make the fluid produce the spiral after the acoustical panel flows through, improved the effect of refining the big bubble.

In one embodiment, the plurality of flow guide holes are uniformly distributed in an annular shape by taking a central point of the sound-absorbing plate as a center, and each flow guide hole is spirally arranged by taking the central axis of the sound-absorbing plate as an axis. The flow guide holes are arranged into a spiral structure, so that the spiral effect of fluid flowing through the silencing plate is improved.

In one embodiment, the hole diameters of the diversion holes on the plurality of sound absorption plates decrease layer by layer from one end of the sound absorber to the other end of the sound absorber. The diversion holes are reduced layer by layer, so that the bubbles can be gradually refined, and the refining effect of the bubbles is better.

In one embodiment, the cross-sectional area of the flow guide holes in the sound-absorbing plate gradually decreases from one end of the sound absorber to the other end of the sound absorber. The diversion holes are arranged in a gradually reduced necking structure, so that the retardation of the silencing plate on fluid can be reduced, and the loss of fluid kinetic energy is reduced.

In one embodiment, the cross section of the diversion hole is any one or combination of a circle, an ellipse, a square, a triangle, a trapezoid and a sector. Different pass's setting can mutually support, carries out different forms to the bubble and cuts, improves the effect that the abatvoix eliminated the big bubble.

In one embodiment, the axes of the diversion holes on two adjacent sound-absorbing plates are arranged in a staggered manner. The gas-liquid mixed fluid flowing into the mixed flow cavity is required to be mixed in the mixed flow cavity and then flows out, so that the mixed flow effect of the mixed flow cavity is improved.

The utility model also provides an electronic expansion valve, including foretell arbitrary valve muffler.

In one embodiment, the electronic expansion valve comprises:

a valve body having an inlet and an outlet;

an inlet pipe mounted at the inlet;

an outlet pipe mounted at the outlet; and

the valve silencer is arranged at any one or more of the inlet, the outlet, the inlet pipe and the outlet pipe.

Compared with the prior art, the valve silencer has the advantages that the silencing plates are arranged to form the flow mixing cavity between the adjacent silencing plates, when fluid flows through the silencing plates, large bubbles are decomposed, the fluid enters the flow mixing cavity, mixed flow and stirring are carried out in the flow mixing cavity, and the bubbles are further scattered, so that the bubbles in the fluid are fully refined, and the noise of the fluid flowing through the electronic expansion valve is reduced.

Drawings

Fig. 1 is a cross-sectional view of a valve muffler according to the present invention;

fig. 2 is a cross-sectional view of an embodiment of a valve muffler provided by the present invention;

fig. 3 is a cross-sectional view of an embodiment of a valve muffler provided by the present invention;

FIG. 4 is a perspective view of one embodiment of a support ring provided by the present invention;

fig. 5 is a perspective view of an acoustic panel according to the present invention;

fig. 6 is a cross-sectional view of an electronic expansion valve provided by the present invention;

fig. 7 is a partial enlarged view of fig. 6 at a;

fig. 8 is a cross-sectional view of an electronic expansion valve provided by the present invention;

fig. 9 is a partial enlarged view of fig. 8 at B.

In the figure, the electronic expansion valve 100, the valve body 11, the inlet 111, the outlet 112, the inlet pipe 12, the outlet pipe 13, the valve silencer 14, the silencing plate 141, the support 1411, the diversion hole 142, the mixed flow cavity 143, the support 144, the support ring 145, the diversion channel 146, the outer ring 1451 and the inner ring 1452.

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.

It will be understood that when an element is referred to as being "mounted on" another element, it can be directly on the other element or intervening elements may also be present. When a component is referred to as being "disposed on" another component, it can be directly on the other component or intervening components may also be present. When an element is referred to as being "secured to" another element, it can be directly secured to the other element or intervening elements may also be present.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "or/and" includes any and all combinations of one or more of the associated listed items.

As shown in fig. 1, the utility model provides a valve silencer 14 installs on the valve for reduce the produced noise when fluid flows through the valve, valve silencer 14 includes polylith acoustical panel 141 that sets up parallel to each other and interval, every a plurality of water conservancy diversion holes 142 have been seted up on acoustical panel 141, adjacent two form between the acoustical panel 141 and mix a class chamber 143.

It should be noted that, the valve is installed in a refrigerant pipeline of an air conditioning system for controlling the flow rate of fluid in the pipeline, in the air conditioning pipeline, the refrigerant flowing through the valve is often in a gas-liquid two-phase mixed state, bubbles with uneven sizes exist in the fluid in the pipeline, and when the bubbles flow through a valve port for throttling, large noise is generated, and the noise is discontinuous, which affects the use comfort of the whole equipment. In this embodiment, a plurality of sound-absorbing plates 141 are disposed at the valve port in parallel and spaced apart from each other to attenuate large bubbles, thereby reducing noise when fluid flows through the valve port.

Specifically, the valve silencer 14 is provided with a plurality of sound-absorbing plates 141, and a mixing chamber 143 is formed between two adjacent sound-absorbing plates 141, when fluid flows through the sound-absorbing plates 141, large bubbles are decomposed into smaller bubbles when passing through the flow guide holes 142 on the sound-absorbing plates 141, and then the fluid enters the mixing chamber 143, and is mixed and stirred in the mixing chamber 143, so that the bubbles in the fluid are further dispersed, the bubbles in the fluid are sufficiently refined, and noise of the fluid when the fluid flows through the electronic expansion valve 100 is reduced.

Preferably, as shown in fig. 2, the valve muffler 14 further includes a supporting body 144, and the sound-absorbing plate 141 is disposed on the supporting body 144. It will be appreciated that the valve muffler 14 is made integral by the support 144 being provided to support the sound-deadening plate 141, thereby facilitating the mounting and dismounting of the valve muffler 14.

It can be understood that, in order to improve the convenience of mounting and dismounting the sound-absorbing plate 141, the sound-absorbing plate 141 is fixed on the supporting body 144, and then the supporting body 144 is mounted on the valve or in the pipeline connected with the valve, so that the process of maintaining and replacing the sound-absorbing plate 141 can be simplified, and the practicability is high.

Further, as shown in fig. 3, the supporting body 144 includes a plurality of supporting rings 145, the supporting rings 145 are stacked and form a flow guiding channel 146, and one sound-absorbing plate 141 is disposed between every two supporting rings 145.

In one embodiment, as shown in fig. 3 and 4, the support rings 145 include an inner ring 1451 and an outer ring 1452, the inner ring 1451 of the adjacent rear support ring 145 is inserted into the outer ring 1452 of the previous support ring 145 to be connected, and the sound-absorbing plate 141 is disposed between the inner rings 1451 of the adjacent two support rings 145.

It can be understood that the supporting rings 145 form the supporting body 144, so that the number of the supporting bodies 144 can be selected or adjusted according to actual installation requirements and space requirements, thereby not only improving the structural variability of the valve muffler 14, but also enlarging the applicable scope of the valve muffler 14.

In a further embodiment, shown in fig. 8 and 9, the acoustic panel 141 is provided with a support 1411, the support 1411 abutting against the other acoustic panel 141 so as to maintain a certain distance between two adjacent acoustic panels 141 to form the mixing chamber 143.

Preferably, the supporting portion 1411 is annular and is located at the edge of the sound-absorbing plate 141 and is provided as an integral structure with the sound-absorbing plate 141.

It should be noted that the sound-absorbing plates 141 are arranged at intervals, and the distance between adjacent sound-absorbing plates 141 may be 1 mm to 5 mm, for example

Preferably, the plurality of diversion holes 142 are all obliquely arranged clockwise or counterclockwise with the central line of the sound-absorbing plate 141 as an axis.

It will be appreciated that the fluid entering the mixing chamber 143 after passing through the one layer of sound absorbing plate 141 will rotate clockwise or counterclockwise within the mixing chamber 143, and that the subsequent fluid flowing into the mixing chamber 143 will be able to sufficiently fine the large bubbles in the fluid.

Preferably, as shown in fig. 5, the plurality of diversion holes 142 are uniformly distributed in a ring shape around a central point of the sound-absorbing plate 141, and each diversion hole 142 is spirally arranged around a central axis of the sound-absorbing plate 141.

It can be understood that, by arranging the diversion holes 142 in a spiral structure, the rotating effect of the fluid flowing through the sound-absorbing plate 141 can be improved, thereby improving the stirring effect in the mixing chamber 143.

Preferably, the diameter of the diversion holes 142 of the plurality of sound absorbing plates 141 decreases from one end of the valve muffler 14 to the other end thereof.

It should be noted that, the diversion holes 142 on the sound-absorbing plate 141 from one end to the other end of the valve muffler 14 are reduced layer by layer, so that the sound-absorbing plate 141 can exhibit the function of gradually refining bubbles, thereby avoiding the generation of loud noise due to the excessively severe refining of large bubbles when fluid flows through the sound-absorbing plate 141, ensuring the refining effect of bubbles and avoiding the generation of loud noise.

Preferably, in one embodiment, the cross-sectional area of the baffle holes 142 of the sound-absorbing plate 141 gradually decreases from one end of the valve muffler 14 to the other end.

It will be appreciated that providing the baffle holes 142 in a tapered configuration reduces the drag of the acoustical panel 141 on the fluid.

In another embodiment, the diversion holes 142 may be provided in a shape with two side flares, so that the diversion holes 142 have less resistance to the fluid when the fluid flows in both directions.

Preferably, the cross section of the diversion hole 142 is any one or a combination of more than one of a circle, an ellipse, a square, a triangle, a trapezoid and a sector.

It should be noted that the one-layer sound-absorbing plate 141 may have diversion holes 142 with multiple shapes, and the diversion holes 142 of the multiple-layer sound-absorbing plate 141 may also be configured with different shapes.

It can be understood that different pass are different to the segmentation effect of bubble, set up the water conservancy diversion hole 142 of different shapes on same acoustical panel 141, can make the fluid state that gets into in the muddy class chamber 143 diversified to improve the mixed flow effect of fluid in the muddy class chamber 143, and set up the water conservancy diversion hole 142 of multilayer acoustical panel 141 into different shapes and make different layers' acoustical panel 141 can cooperate each other, carry out different forms to the bubble and cut, improve acoustical panel 141 and eliminate the effect of big bubble.

Specifically, for example, the cross section of the diversion hole 142 on the first layer of sound-absorbing plate 141 is set to be circular, the cross section of the diversion hole 142 on the second layer of sound-absorbing plate 141 is set to be square, and the cross section of the diversion hole 142 on the third layer of sound-absorbing plate 141 is set to be fan-shaped.

Preferably, referring to fig. 1 and 2, the axes of the diversion holes 142 of two adjacent sound insulation boards 141 are arranged in a staggered manner.

It can be understood that the diversion holes 142 on the two adjacent sound-absorbing plates 141 are arranged in a staggered manner, so that the gas-liquid mixed fluid flowing into the mixed flow cavity 143 can flow out after being mixed in the mixed flow cavity 143, the mixed flow effect of the mixed flow cavity 143 is improved, the phenomenon that the fluid directly flows through the two sound-absorbing plates 141 due to the fact that the distance between the two adjacent sound-absorbing plates 141 is too small, sufficient mixed flow is not performed is avoided, and the refining effect of large bubbles is reduced.

It is worth mentioning that the aperture size of the diversion hole 142 may be 0.15 mm to 2 mm, and is larger than the aperture of the filter screen in the air-conditioning refrigerant fluid system, so as to prevent the valve muffler 14 from being blocked by the impurities that can pass through the filter device in the pipeline.

Furthermore, the utility model also provides an electronic expansion valve 100, include: a valve body 11 having an inlet 111 and an outlet 112; an inlet pipe 12 connected to the inlet 111; an outlet pipe 13 connected to the outlet 112; and

the valve silencer 14, the valve silencer 14 is disposed at the inlet 111 and/or the outlet 112 and/or the inlet pipe 12 and/or the outlet pipe 13.

Specifically, as shown in fig. 6 and 7, the valve muffler 14 may be disposed at the inlet 111, the outlet 112, the inlet pipe 12, the outlet pipe 13, or a combination thereof of the valve body 11.

Preferably, the electronic expansion valve 100 may be a two-way throttle valve, and the fluid may flow from the inlet pipe 12 to the outlet pipe 13, or may flow from the outlet pipe 13 to the inlet pipe 12. It is worth mentioning that the valve muffler 14 is disposed at the inlet pipe 12 or the inlet 111 of the valve body 11 to generate a better muffling effect when the fluid flows from the inlet pipe 12 to the outlet pipe 13, and the valve muffler 14 is disposed at the outlet pipe 13 or the outlet 112 of the valve body 11 to generate a better muffling effect when the fluid flows from the outlet pipe 13 to the inlet pipe 12. Therefore, in the case that the electronic expansion valve 100 needs to perform bidirectional throttling, a valve muffler 14 may be disposed at the inlet 111 or the inlet pipe 12 of the valve body 11, and a valve muffler 14 may also be disposed at the outlet 112 or the outlet pipe 13 of the valve body 11, so as to achieve the silencing effect in the case that the fluid has different flow directions.

The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiments only represent some embodiments of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.

Claims

1. A valve muffler, comprising:

2. The valve muffler of claim 1, further comprising a support body, the sound attenuating plate being disposed on the support body.

3. The valve silencer of claim 2, wherein said support body includes a plurality of support rings arranged in a stack and forming a flow directing passage, one of said acoustical panels being disposed between each two of said support rings.

4. The valve muffler of claim 1, wherein the baffle holes are inclined clockwise or counterclockwise about the centerline of the muffler plate.

5. The valve silencer of claim 2, wherein the plurality of baffle holes are evenly distributed in a ring shape around a center point of the silencer plate, and each baffle hole is spirally arranged around a central axis of the silencer plate.

6. The valve muffler of claim 1, wherein the flow-directing holes in the plurality of muffling plates decrease in diameter layer by layer.

7. The valve muffler of claim 1, wherein the flow directing holes in the muffler plate are tapered in cross-sectional area.

8. The valve silencer of claim 1, wherein the cross section of the diversion hole is any one or more of circular, oval, square, triangular, trapezoidal and fan-shaped.

9. An electronic expansion valve comprising a valve muffler according to any one of claims 1 to 8.

10. The electronic expansion valve of claim 9, further comprising:

a valve body having an inlet and an outlet;

an inlet pipe mounted at the inlet;

an outlet pipe mounted at the outlet,