CN218992550U - Waterway noise reduction valve and gas water heater - Google Patents

Abstract

The utility model belongs to the technical field of gas water heaters, and discloses a waterway noise reduction valve and a gas water heater. The waterway noise reduction valve comprises a valve body and a waterway noise reduction device, wherein the valve body is provided with a water inlet and a water outlet, and a noise source is arranged between the water inlet and the water outlet; the waterway noise reduction device is arranged in the valve body and positioned between the water inlet and the water outlet, and part or all of the waterway noise reduction device is arranged at the downstream of the noise source so as to absorb the energy of the water flow shock wave. Because the waterway noise reduction device is partially or completely arranged at the downstream of the water flow direction of the noise source in the valve body, when the water flow of the noise source in the valve body impacts the waterway noise reduction device, the waterway noise reduction device can absorb the water flow shock wave emitted by the noise source, so that the noise of the noise source is reduced, the noise reduction effect is effectively achieved, and the problem of the water flow noise in the valve body is solved.

Description

Waterway noise reduction valve and gas water heater

Technical Field

The utility model relates to the technical field of gas water heaters, in particular to a waterway noise reduction valve and a gas water heater.

Background

The running water noise is the noise generated by the change of the water flow direction due to the change of the water flow section size when water flows in the pipeline.

The waterways of the gas water heater and the heating stove are all composed of a plurality of valve bodies and heat exchangers, the valve bodies comprise water flow sensors, water-air linkage valves, water proportional valves, water regulating valves and the like, when water flows through the valve bodies, impact water flow noise can be generated, and the effect of noise amplification can be generated when the water flows into the heat exchangers, so that larger noise is generated.

An important index of the quality of the household gas water heater product is the noise value, and GB6932-2001 prescribes that the noise of the gas water heater product is required to be below 65 dB. The main noise of the gas water heater comprises mechanical noise, aerodynamic noise, water flow noise and combustion noise, and reducing the water flow noise is beneficial to reducing the overall noise level of the gas water heater.

The conventional noise-eliminating method in the prior art includes coating the outer wall of the pipe with a sound-insulating and sound-deadening material, which does not essentially eliminate noise, but is a sound-insulating method, and the conventional porous sound-absorbing material is not suitable for waterway environments. At present, no noise reduction structure and method aiming at the impact noise of water flow in the valve body exist.

Disclosure of Invention

One of the technical problems to be solved by the utility model is to provide a waterway noise reduction valve which can effectively solve the problem of water flow impact noise in the valve body.

The second technical problem to be solved by the utility model is to provide the gas water heater, which can effectively solve the problem of noise of the valve body of the gas water heater and reduce the water flow impact noise of the valve body.

The first technical problem is solved by the following technical scheme:

a waterway noise reduction valve, comprising:

a valve body having a water inlet and a water outlet with a noise source therebetween;

the waterway noise reduction device is arranged in the valve body and is positioned between the water inlet and the water outlet, and part or all of the waterway noise reduction device is arranged at the downstream of the noise source so as to absorb the energy of water flow shock waves.

Compared with the background technology, the waterway noise reduction valve has the following beneficial effects:

according to the waterway noise reduction valve, as the waterway noise reduction device is partially or completely arranged at the downstream of the water flow direction of the noise source in the valve body, when the water flow of the noise source in the valve body impacts the waterway noise reduction device, the waterway noise reduction device can absorb the water flow shock wave emitted by the noise source, so that the noise of the noise source is reduced, the noise reduction effect is effectively achieved, and the problem of the water flow impact noise in the valve body is solved.

In one embodiment, the waterway noise reduction device includes a sound attenuation layer disposed against an inner wall of the valve body.

In one embodiment, the sound attenuating layer is a porous foam layer.

In one embodiment, the waterway noise reduction device further comprises a fixing layer, wherein the fixing layer is arranged on the inner surface or the outer surface of the noise reduction layer, and two ends of the fixing layer are respectively coated on the end surfaces of two ends of the noise reduction layer and connected with the end surfaces of the two ends of the noise reduction layer.

In one embodiment, the fixing layer is a metal mesh layer.

In one embodiment, the waterway noise reducer is hollow cylindrical, and the ratio of the length to the inner diameter of the waterway noise reducer is greater than 2.

In one embodiment, the waterway noise reducer has a length to inside diameter ratio of 6.

In one embodiment, the waterway noise reduction valve further comprises a valve core, wherein the valve core is arranged in a valve cavity of the valve body, and the waterway noise reduction device is arranged in the valve cavity at the downstream of the valve core.

In one embodiment, the waterway noise reduction valve further includes a connector disposed downstream of the valve core and coupled to the valve body.

The second technical problem is solved by the following technical scheme:

the gas water heater comprises the waterway noise reduction valve provided by any embodiment.

Compared with the background technology, the gas water heater has the following beneficial effects:

compared with the conventional valve body in the prior art, the water path noise reduction device is arranged at the downstream of the noise source in the valve body, so that the water flow shock wave emitted by the noise source can be absorbed in time, the noise of the noise source is reduced, the noise reduction effect is effectively achieved, and the problem of water flow noise in the valve body is solved.

Drawings

FIG. 1 is a schematic diagram of a waterway noise reduction valve of the present utility model;

FIG. 2 is a schematic diagram of a waterway noise reduction valve according to the present utility model;

FIG. 3 is a schematic diagram of a waterway noise reduction valve according to the present utility model;

FIG. 4 is a schematic diagram of a waterway noise reduction valve according to the present utility model;

FIG. 5 is a schematic diagram of an end face structure of a waterway noise reduction device (a fixed layer is disposed inside a noise reduction layer);

FIG. 6 is a schematic diagram of a longitudinal section of the waterway noise reduction device of FIG. 5 (the fixed layer is disposed inside the noise reduction layer);

FIG. 7 is a schematic diagram of an end face structure of a waterway noise reduction device according to the present utility model (a fixed layer is disposed on an inner surface of a sound-deadening layer);

FIG. 8 is a schematic view of the water circuit noise reduction device of FIG. 7 in a longitudinal section (the fixed layer is arranged on the inner surface of the noise reduction layer);

FIG. 9 is a schematic diagram of an end face structure of a waterway noise reduction device according to the present utility model (a fixed layer is disposed on the inner surface and two ends of a sound deadening layer);

FIG. 10 is a schematic view of the water circuit noise reduction device of FIG. 9 in a longitudinal section (a fixed layer is provided on the inner surface and both ends of the sound deadening layer);

FIG. 11 is a schematic diagram of an end face structure of a waterway noise reduction device according to the present utility model (a fixed layer is disposed on an outer surface of a sound-deadening layer);

FIG. 12 is a schematic view of the water circuit noise reduction device of FIG. 11 in a longitudinal section (the fixing layer is arranged on the outer surface of the noise damping layer);

FIG. 13 is a schematic diagram of an end face structure of a waterway noise reduction device of the present utility model (a fixed layer is disposed on the outer surface and two ends of a sound deadening layer);

fig. 14 is a schematic view of a longitudinal section of the waterway noise reduction device of fig. 13 (a fixed layer is provided on the outer surface and both ends of the sound deadening layer).

Description of the reference numerals:

1. a valve body; 11. a water inlet; 12. a water outlet; 13. a noise source; 2. a waterway noise reduction device; 21. a sound deadening layer; 22. a fixed layer; 3. a valve core; 4. and (3) a joint.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

In the description of the present utility model, it should be understood that the terms "center," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like indicate orientations or positional relationships based on the orientation or positional relationships shown in the drawings, merely to facilitate describing the present utility model and simplify 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 utility model.

The terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present utility model, unless otherwise indicated, the meaning of "a plurality" is two or more.

In the description of the present utility model, 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 utility model will be understood in specific cases by those of ordinary skill in the art.

The embodiment provides a waterway noise reduction valve, as shown in fig. 1, which comprises a valve body 1 and a waterway noise reduction device 2, wherein the valve body 1 is provided with a water inlet 11 and a water outlet 12, and a noise source 13 is arranged between the water inlet 11 and the water outlet 12; the waterway noise reduction device 2 is arranged in the valve body 1 and between the water inlet 11 and the water outlet 12, and part or all of the waterway noise reduction device 2 is arranged downstream of the noise source 13 to absorb energy of water flow shock waves.

As shown in fig. 1, in this embodiment, taking a valve body 1 of a flow sensor as an example, the valve body 1 and a valve core 3 cooperate to regulate water flow, a through hole on the valve core 3 is a small hole relative to the inner aperture of a valve cavity of the valve body 1, when the water pressure is large, the water flow is ejected from the small hole after passing through the small hole of the valve core 3 in the valve body 1, the space of the valve cavity after the small hole is ejected is much larger than that of the small hole, and because the water pressure is large, the speed of the small hole ejected is fast, the water in the space of the valve cavity collides with violently to generate shock waves, and the water flow flowing in the shock wave band generates impact noise to form a noise source 13 and diffuses to the periphery. In this embodiment, the waterway noise reduction device 2 is disposed at the downstream of the noise source 13, and the waterway noise reduction device 2 is disposed at the downstream of the valve core 3, when the shock wave hits the waterway noise reduction device 2, the waterway noise reduction device 2 absorbs the energy of the water flow shock wave, so that the transmission is stopped, the water flow shock wave is continuously reduced, and the waterway noise reduction device 2 with a sufficient length can basically absorb most of the shock wave, thereby reducing the noise and solving the problem of the water flow noise in the valve body 1.

In the embodiment shown in fig. 2, when the valve cavity of the valve body 1 downstream of the valve core 3 is insufficient, because the noise source 13 is located downstream of the valve core 3, the space for arranging the waterway noise reducer 2 is lacking or insufficient, in this case, the waterway noise reducer 2 may be arranged in part inside the valve body 1 and part of the joint 4 or all of the joints 4 by arranging the joint 4 at the end of the valve body 1, which is coaxially connected with the valve body 1, so as to further reduce the water flow noise by arranging the joint 4 at the end of the valve body 1, which is partially arranged inside the valve body 1 and part of the joint 4, and which meets the length requirement of the waterway noise reducer 2, so as to absorb the water flow shock wave downstream of the noise source 13.

In the embodiment shown in fig. 3 and 4, when the noise source 13 is located near the water inlet 11, the waterway noise reducer 2 may be disposed in the valve cavity downstream of the valve core 3 (fig. 3), or disposed in the valve cavity upstream of the valve core 3 (fig. 4), and when the waterway noise reducer 2 is disposed downstream of the valve core 3, the waterway noise reducer 2 is located entirely downstream of the noise source 13, and may absorb the water flow shock waves upstream and downstream of the valve core 3 at the same time. When the waterway noise reducer 2 is disposed upstream of the valve core 3, the waterway noise reducer 2 is partially located downstream of the noise source 13, i.e., the noise source 13 is located entirely within the waterway noise reducer 2, so that the water flow shock wave generated at the noise source 13 can be absorbed entirely.

In one embodiment, the waterway noise reduction device 2 includes a sound attenuation layer 21, and the sound attenuation layer 21 is disposed against an inner wall of the valve body 1 to absorb water shock waves in the valve body 1.

In this embodiment, as shown in fig. 5, the noise damping layer 21 is preferably a porous foam layer made of porous foam material, such as porous foam rubber, PE (polyethylene) and other soft materials, and the porous foam layer is soft after foaming, and absorbs energy of water flow shock wave, so that the noise damping effect is good. The silencing layer 21 is hollow and cylindrical and is arranged on the inner wall of the valve body 1 to absorb water flow shock waves in all directions, so that noise is further reduced. As shown in fig. 1 to 4, two ends of the waterway noise reducer 2 are respectively abutted against two ends of the valve cavity at the position, so that the position stability of the waterway noise reducer 2 in the valve body 1 can be improved.

In one embodiment, the waterway noise reduction device further includes a fixing layer 22, and the fixing layer 22 is disposed on an inner surface of the sound deadening layer 21, and/or an outer surface of the sound deadening layer 21, and/or an inner portion of the sound deadening layer 21 to fix and support the sound deadening layer 21.

It will be appreciated that the sound damping layer 21 has a porous, porous structure, soft texture, and may deform under the influence of a large water shock wave, affecting the water flow velocity of the valve body 1 and increasing the flow resistance. Therefore, the fixing layer 22 is provided to fix and support the noise reduction layer 21 in this embodiment, so as to avoid deformation of the noise reduction layer 21 to affect the noise reduction effect. Specifically, the fixing layer 22 may be disposed on the inner surface, the outer surface or the inside of the noise reduction layer 21, or any two or more of the above positions may be disposed simultaneously, such as disposing the fixing layer 22 on the inner surface and the outer surface of the noise reduction layer 21, or disposing the fixing layer 22 simultaneously on the inner surface, the outer surface, the inside and the inner surface, and specifically, selectively disposing the thickness of the fixing layer 22 according to the overall thickness and the strength requirement of the waterway noise reduction device 2.

In one embodiment, as shown in fig. 5 and 6, the fixing layer 22 is a metal mesh layer, and the fixing layer 22 is disposed inside the noise reduction layer 21, so as to support the noise reduction layer 21, and at the same time, increase the strength of the noise reduction layer 21, so that the noise reduction layer 21 can be fixed on the inner wall of the valve body 1.

As shown in the embodiment of fig. 7 and 8, the fixing layer 22 is provided on the inner surface of the sound deadening layer 21, and the fixing layer 22 can support the sound deadening layer 21 outward, fixing the sound deadening layer 21 between the fixing layer 22 and the inner wall of the valve body 1. It will be appreciated that the mesh size of the fixed layer 22 is selected to be sufficient to allow the water shock wave to effectively and fully contact the sound damping layer 21 to achieve the effect of noise reduction.

As shown in fig. 9 and 10, when the fixing layer 22 is provided on the inner surface of the noise reduction layer 21, both ends of the fixing layer 22 are fixedly connected with the end surfaces of both ends of the noise reduction layer 21, respectively. As shown in fig. 9, the end face structure of the waterway noise reduction device 2 is formed by flanging two ends of the fixing layer 22 from inside to outside to surround, fix and support the inner surface of the noise reduction layer 21 and the end faces of the two ends, so that the problem that the two ends of the noise reduction layer 21 are easy to be impacted and deformed by water flow can be effectively avoided, and the service life of the waterway noise reduction device 2 is prolonged.

Similarly, as shown in fig. 11 and 12, the fixing layer 22 is disposed on the outer surface of the noise reduction layer 21, which is beneficial to the overall installation of the waterway noise reduction device 2.

Further, as shown in fig. 13 and 14, both ends of the fixing layer 22 are turned toward one side of the noise reduction layer 21 to be wrapped around both end surfaces of the noise reduction layer 21, so that the entire length of the noise reduction layer 21 and the supporting strength of both ends are improved. The connection of the noise reduction layer 21 and the fixing layer 22 is achieved by foaming the noise reduction layer 21 on the fixing layer 22.

In one embodiment, the waterway noise reducer 2 is hollow cylindrical, and the ratio of the length to the inner diameter of the waterway noise reducer 2 is greater than 2.

When the length of the valve cavity downstream of the valve core 3 is smaller as shown in fig. 4, the installation of the waterway noise reduction device 2 is not facilitated or the noise reduction effect is insufficient, and at this time, the waterway noise reduction device 2 needs to be arranged in the valve cavity upstream of the valve core 3, or as shown in fig. 2, the waterway noise reduction valve further comprises a joint 4, and after the joint 4 is arranged at the water outlet end of the valve cavity downstream of the valve core 3, the waterway noise reduction device 2 is arranged in the joint 4, so that the ratio of the length to the inner diameter of the waterway noise reduction device 2 is greater than 2. The joint 4 is detachably connected to the valve body 1.

In another embodiment, in order not to affect the inner aperture of the valve cavity of the original valve body 1, before the waterway noise reduction device 2 is installed, the valve cavity of the valve body 1 needs to be reamed, and then the waterway noise reduction device 2 is installed in a reamed groove, so that the requirement that the ratio of the length to the inner diameter of the waterway noise reduction device 2 is greater than 2 can be met, the effect of reducing the water flow noise is good, and the flow resistance is small. Further preferably, the experimental result shows that the water path noise reduction device 2 has better effect of reducing the impact noise of water flow when the ratio of the length to the inner diameter of the water path noise reduction device is 6.

The embodiment provides a gas water heater, which comprises the waterway noise reduction valve.

Compared with the conventional valve in the prior art, the water path noise reduction valve is adopted, and the water path noise reduction device 2 is arranged at the downstream of the noise source 13 in the valve body 1, so that the water flow shock wave emitted by the noise source 13 can be absorbed in time, the noise of the noise source 13 is reduced, the noise reduction effect is effectively achieved, and the problem of water flow noise in the valve body 1 is solved.

It should be noted that, the gas water heater generally includes a plurality of valve bodies 1, and according to needs, one or more valve bodies 1 on the water path of the gas water heater can be replaced by the waterway noise reduction valve provided by the utility model, so as to reduce or eliminate the water flow impact noise of the gas water heater.

In the specific content of the above embodiment, any combination of the technical features may be performed without contradiction, and for brevity of description, all possible combinations of the technical features are not described, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description.

The foregoing detailed description of the embodiments presents only a few embodiments of the present utility model, which are described in some detail and are not intended to limit the scope of the present utility model. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the utility model, which are all within the scope of the utility model. Accordingly, the scope of protection of the present utility model is to be determined by the appended claims.

Claims (10)

1. Waterway noise reduction valve, its characterized in that includes:

a valve body (1), the valve body (1) having a water inlet (11) and a water outlet (12), a noise source (13) being provided between the water inlet (11) and the water outlet (12);

the water way noise reduction device (2), the water way noise reduction device (2) is arranged in the valve body (1) and is positioned between the water inlet (11) and the water outlet (12), and part or all of the water way noise reduction device (2) is arranged at the downstream of the noise source (13) so as to absorb energy of water flow shock waves.

2. Waterway noise reduction valve according to claim 1, characterized in that the waterway noise reduction device (2) comprises a noise reduction layer (21), said noise reduction layer (21) being arranged against the inner wall of the valve body (1).

3. The waterway noise reduction valve according to claim 2, characterized in that the noise reduction layer (21) is a porous foaming layer.

4. The waterway noise reduction valve according to claim 2, characterized in that the waterway noise reduction device (2) further comprises a fixing layer (22), the fixing layer (22) is arranged on the inner surface or the outer surface of the noise reduction layer (21), and two ends of the fixing layer (22) are respectively coated on end surfaces of two ends of the noise reduction layer (21) and connected.

5. The waterway noise reduction valve of claim 4, characterized in that the fixed layer (22) is a metal mesh layer.

6. The waterway noise reduction valve of any of claims 1-5, characterized in that the waterway noise reduction device (2) is hollow cylindrical, and the ratio of the length of the waterway noise reduction device (2) to the inner diameter is greater than 2.

7. The waterway noise reduction valve of claim 6, characterized in that the waterway noise reduction device (2) has a length to inside diameter ratio of 6.

8. The waterway noise reduction valve according to any of claims 1-5, characterized in that the waterway noise reduction valve further comprises a valve core (3), the valve core (3) being provided in a valve cavity of the valve body (1), the waterway noise reduction device (2) being provided in the valve cavity downstream of the valve core (3).

9. The waterway noise reduction valve according to claim 8, characterized in that it further comprises a joint (4), said joint (4) being provided downstream of said valve core (3) and connected to said valve body (1).

10. A gas water heater comprising the waterway noise reduction valve of any one of claims 1-9.

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