CN212389841U

CN212389841U - Throttle valve

Info

Publication number: CN212389841U
Application number: CN202021907745.3U
Authority: CN
Inventors: 冯光华; 周峰; 王彬; 冯熊熊
Original assignee: Zhejiang Dunan Artificial Environment Co Ltd
Current assignee: Zhejiang Dunan Artificial Environment Co Ltd
Priority date: 2020-09-03
Filing date: 2020-09-03
Publication date: 2021-01-22
Anticipated expiration: 2030-09-03

Abstract

The utility model provides a throttle valve, include: a valve seat; the valve core is arranged in the valve seat, and a flow channel is arranged on the valve core; wherein, be provided with the cavity structure between case and the disk seat, circulation passageway and cavity structure intercommunication to make the liquid in the circulation passageway get into in the cavity structure and cushion. Through the technical scheme provided by the utility model, can solve the great technical problem of noise of the choke valve among the prior art.

Description

Throttle valve

Technical Field

The utility model relates to a choke valve technical field particularly, relates to a choke valve.

Background

At present, a refrigeration system generally includes a compressor, a throttling element, an outdoor heat exchanger, and other components, where the throttling element may be a throttling valve, and the throttling valve is mainly used for adjusting a refrigerant flow. Because the flow area of the flow passage of the throttle valve is small, the refrigerant can generate large noise when passing through the throttle valve.

SUMMERY OF THE UTILITY MODEL

A primary object of the present invention is to provide a throttle valve to solve the technical problem of the prior art that the noise of a throttle valve is large.

In order to achieve the above object, the present invention provides a throttle valve, including: a valve seat; the valve core is arranged in the valve seat, and a flow channel is arranged on the valve core; wherein, be provided with the cavity structure between case and the disk seat, circulation passageway and cavity structure intercommunication.

Further, a communicating channel is further arranged on the valve core, one end of the communicating channel is communicated with the circulating channel, and the other end of the communicating channel is communicated with the cavity structure.

Furthermore, a first avoidance area is arranged on the side part of the valve core, and a cavity structure is formed in the first avoidance area; and/or a second avoidance area is arranged on the inner wall of the valve seat, and the second avoidance area forms a cavity structure.

Furthermore, a first avoidance area is arranged on the side portion of the valve core, a second avoidance area is arranged on the inner wall of the valve seat, and the first avoidance area and the second avoidance area are communicated with each other, so that the first avoidance area and the second avoidance area form a cavity structure.

Further, the first avoidance area is a first annular groove; and/or the second avoidance area is a second annular groove.

Further, the cavity structure is an annular cavity structure.

Further, the number of the communication channels is at least two, and the at least two communication channels are arranged on the valve core at intervals.

Further, a plurality of communication passages are provided at intervals around the circumference of the flow passage.

Furthermore, the communicating channels are multiple, the cavity structures are multiple, the communicating channels and the cavity structures are arranged in a one-to-one correspondence mode, and the communicating channels are communicated with the corresponding cavity structures.

Further, a plurality of cavity structures are arranged around the circumference of the flow channel at intervals.

Further, the spool includes: the main body section is provided with a communicating cavity; the throttling section is connected with the main body section, a throttling channel is arranged on the throttling section, and the throttling channel is communicated with the communicating cavity to form a circulating channel; the communicating channel is arranged on the main body section, one end of the communicating channel is communicated with the communicating cavity, and the other end of the communicating channel is communicated with the cavity structure; and/or the communication channel is arranged on the throttling section, one end of the communication channel is communicated with the throttling channel, and the other end of the communication channel is communicated with the cavity structure.

Further, the throttle section includes: the neck reducing section is connected with the main body section, the throttling channel and the communicating channel are both arranged on the neck reducing section, and the throttling channel is communicated with the communicating cavity; the base sets up the one end of keeping away from the main part section at the necking down section, the inner wall butt of base and disk seat, and the main part section is close to one side of necking down section and the inner wall butt of disk seat to make main part section, necking down section, base and disk seat enclose into the cavity structure.

Use the technical scheme of the utility model, because set up the cavity structure between case and the disk seat, the noise that the fluid in the circulation passageway of case produced of flowing through can consume in the cavity structure to reach noise abatement's effect. And be provided with the intercommunication passageway on the case, the one end and the circulation passageway intercommunication of intercommunication passageway, the other end and the cavity structure intercommunication of intercommunication passageway, like this, can make the fluid in the circulation passageway get into the cavity structure through the intercommunication passageway in, can further carry out effective buffering, noise reduction through the cavity structure. Therefore, through the utility model provides a technical scheme, can solve the great technical problem of noise of the choke valve among the prior art.

Drawings

The accompanying drawings, which form a part of the present application, 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 shows a schematic structural view of a valve cartridge provided with a first avoidance zone according to an embodiment of the present invention;

figure 2 illustrates a front view of a valve cartridge provided with a first avoidance zone in accordance with an embodiment of the present invention;

fig. 3 illustrates a cross-sectional view of providing a valve cartridge provided with a first avoidance zone and a plurality of communication channels in accordance with an embodiment of the present invention;

fig. 4 illustrates a cross-sectional view of providing a valve cartridge provided with a first avoidance zone and one communication channel according to an embodiment of the present invention;

fig. 5 is a schematic structural diagram illustrating a valve seat provided with no second avoidance area according to an embodiment of the present invention;

fig. 6 shows a schematic assembly diagram providing a valve cartridge provided with a first avoidance zone and a valve seat not provided with a second avoidance zone according to an embodiment of the present invention;

fig. 7 shows a schematic structural view of providing a valve seat provided with a second avoidance zone according to an embodiment of the present invention;

fig. 8 shows a schematic assembly diagram providing a valve cartridge provided with a first avoidance zone and a valve seat provided with a second avoidance zone according to an embodiment of the present invention;

fig. 9 shows a schematic structural view of providing a cartridge without a base according to an embodiment of the present invention;

figure 10 illustrates a side view of providing a valve cartridge without a base in accordance with an embodiment of the present invention;

fig. 11 illustrates a cross-sectional view of providing a valve seat provided with a second relief zone in accordance with an embodiment of the present invention;

fig. 12 shows an assembly schematic providing a cartridge not provided with a base and a valve seat provided with a second avoidance zone according to an embodiment of the present invention.

Wherein the figures include the following reference numerals:

10. a valve seat; 11. a second avoidance zone; 20. a valve core; 21. a throttling channel; 22. a communication channel; 23. a first avoidance zone; 24. a main body section; 241. a communicating cavity; 25. a necking section; 26. a base; 30. a cavity structure.

Detailed Description

It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present invention will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.

As shown in fig. 1 to 12, an embodiment of the present invention provides a throttle valve, which includes a valve seat 10 and a valve core 20, wherein the valve core 20 is disposed in the valve seat 10, a flow passage is disposed on the valve core 20, and the flow passage includes a flow passage and a communication cavity 241. Wherein, be provided with cavity structure 30 between case 20 and the valve seat 10, the circulation passageway communicates with cavity structure 30 to make the liquid in the circulation passageway get into in the cavity structure 30, like this, the noise that the fluid that flows through case 20 produced can consume in cavity structure 30, thereby reaches the effect of noise reduction.

Specifically, in the present embodiment, the valve core 20 is provided with the communication channel 22, one end of the communication channel 22 is communicated with the flow channel, and the other end of the communication channel 22 is communicated with the cavity structure 30, so that the fluid in the flow channel can enter the cavity structure 30 through the communication channel 22 for buffering, and thus, the effective buffering and noise reduction can be performed through the cavity structure 30. Specifically, the valve seat 10 and the valve element 20 will make the cavity structure 30 form a buffer cavity, according to the helmholtz resonance principle: by creating one or more cavities, sound waves entering the cavities can be consumed and converted into heat energy, and the effect of reducing sound can be achieved. Therefore, through the utility model provides a technical scheme, can solve the great technical problem of noise of the choke valve among the prior art. Preferably, the flow area of the connection port of the cavity structure 30 to the communication channel 22 is larger than the throttling area of the flow channel. Preferably, the volume of the cavity structure 30 is made larger than the volume of the flow-through channel.

In an embodiment of the present invention, a first avoiding area 23 is provided at the side of the valve core 20, and the first avoiding area 23 forms a cavity structure 30. By adopting the structure, only the first avoidance area 23 is dug at the side part of the valve core 20, the cavity structure 30 can be sealed to form a buffer cavity under the matching of the side part of the valve core 20 and the inner wall of the valve seat 10, and the throttled fluid can be effectively buffered through the buffer cavity, so that the noise is reduced. The valve seat is simple in structure and convenient to produce and manufacture, meanwhile, the valve seat 10 is prevented from being improved, and the structural strength of the valve seat 10 is guaranteed.

In another embodiment of the present invention, a second avoiding region 11 is provided on the inner wall of the valve seat 10, and the second avoiding region 11 forms a cavity structure 30. By adopting the structure, the second avoiding area 11 is only needed to be dug on the inner wall of the valve seat 10, the cavity structure 30 can be sealed to form a buffer cavity under the matching of the side part of the valve core 20 and the inner wall of the valve seat 10, and the throttled fluid can be effectively buffered through the buffer cavity, so that the noise is reduced. The structure is simple, the production and the manufacture are convenient, meanwhile, the improvement on the valve core 20 is avoided, and the structural strength of the valve core 20 is ensured.

In another embodiment of the present invention, a first avoiding region 23 is provided at the side portion of the valve core 20, a second avoiding region 11 is provided on the inner wall of the valve seat 10, and the first avoiding region 23 is communicated with the second avoiding region 11, so that the first avoiding region 23 and the second avoiding region 11 form a cavity structure 30. By adopting the structure, the side part of the valve core 20 needs to be dug to form the first avoidance area 23, the inner wall of the valve seat 10 needs to be dug to form the second avoidance area 11, at least parts of the first avoidance area 23 and the second avoidance area 11 can be oppositely arranged, the cavity structure 30 can be sealed under the matching of the side part of the valve core 20 and the inner wall of the valve seat 10 to form a buffer cavity, and throttled fluid can be effectively buffered through the buffer cavity, so that the noise is reduced. The valve core 20 and the valve seat 10 are improved simultaneously, weakening of the structural strength of the valve core 20 and the valve seat 10 is limited, the structural strength of the valve core 20 and the structural strength of the valve seat 10 are guaranteed simultaneously, and therefore the overall structural strength is effectively guaranteed. In addition, the volume of the cavity structure 30 can be increased.

Specifically, the first avoidance area 23 may be set as a first annular groove; or, the second avoidance area 11 is set as a second annular groove; alternatively, the first avoidance zone 23 is provided as a first annular groove and the second avoidance zone 11 is provided as a second annular groove. Adopt above-mentioned structure setting, all can form the annular chamber structure to carry out effectual buffering through the annular chamber structure and fall the noise, such setting makes simple structure, and the manufacturing of being convenient for has also optimized structural layout.

In particular, the cavity structure 30 may be an annular cavity structure. By adopting the structure, the throttling fluid can conveniently enter the annular cavity structure for buffering, so that the effective buffering and noise reduction are realized. Meanwhile, the structure layout is reasonable and compact, and the internal structure layout is optimized.

In all the embodiments described above, the communication passage 22 may be plural, and the plural communication passages 22 are provided at intervals on the spool 20. By adopting the structure, the fluid in the circulation channel can enter the cavity structure 30 conveniently, so that the fluid is effectively buffered through the cavity structure 30, and the noise reduction effect is achieved.

Specifically, a plurality of communication passages 22 may be provided at intervals around the circumference of the flow passage. By adopting the structure, the layout of the space structure can be optimized, the circulation channel is convenient to be connected with the cavity structure 30, and the buffer throttling can be effectively carried out, so that the noise is effectively reduced.

The utility model discloses a further embodiment, intercommunication passageway 22 is a plurality of, and cavity structure 30 is a plurality of, a plurality of intercommunication passageways 22 and the setting of a plurality of cavity structure 30 one-to-one, each intercommunication passageway 22 communicates with corresponding cavity structure 30. With such a structural arrangement, effective buffering of the fluid in the corresponding communication passage 22 through each cavity structure 30 can be facilitated, thereby effectively reducing noise.

In particular, a plurality of cavity structures 30 may be provided at intervals around the circumference of the flow channel. By adopting the structure, the layout of a space structure can be optimized, and the buffer throttling can be effectively carried out, so that the noise is effectively reduced.

As shown in fig. 1 to 12, in an embodiment of the present invention, the valve core 20 of the throttle valve includes a main body section 24 and a throttle section connected to the main body section, a communicating cavity 241 is provided in the main body section 24, a throttle passage 21 is provided on the throttle section, and the throttle passage 21 communicates with the communicating cavity 241 to form a circulating passage. A communication passage 22 provided on the valve spool 20 communicates the communication passage with the cavity structure 30. When the main body section 24 is provided with the communication channel 22 and the cavity structure 30, one end of the communication channel 22 is communicated with the communication cavity 241, the other end is communicated with the cavity structure 30, and the communication channel 22 is communicated with the communication cavity 241 and the cavity structure 30; when the throttling section is provided with the communicating channel 22 and the cavity structure 30, one end of the communicating channel 22 is communicated with the throttling channel 21, the other end of the communicating channel is communicated with the cavity structure 30, and the communicating channel 22 is communicated with the throttling channel 21 and the cavity structure. In the present embodiment, the communicating passage and cavity structure 30 is provided in the body section 24 or the throttle section, and in other embodiments, the communicating passage and cavity structure 30 may be provided in both the body section 24 and the throttle section as desired.

When the first relief area 23 is provided on the throttle section of the valve core 20, the valve core 20 includes a main body section 24 and the throttle section, the throttle section includes a neck section 25 and a base 26, and the main body section 24 is provided with a communicating cavity 241. The neck section 25 is connected with the main body section 24, the throttling channel 21 and the communication channel 22 are both arranged on the neck section 25, and the throttling channel 21 is communicated with the communication cavity 241. The base 26 is disposed at an end of the neck section 25 far from the main body section 24, the base 26 abuts against an inner wall of the valve seat 10, and one side of the main body section 24 close to the neck section 25 abuts against an inner wall of the valve seat 10, so that the main body section 24, the neck section 25, the base 26 and the valve seat 10 enclose a cavity structure 30. By adopting the structure, the structure is simple, the production and the manufacture are convenient, and the buffer can be effectively carried out to reduce the noise.

In another embodiment, when the first relief area is not provided on the throttle section of the valve core 20, the throttle section may not be provided with the necking structure and the base, so that the structure is simple and the manufacturing is convenient.

When the main body section 24 of the valve core 20 is provided with a first avoidance area, the main body section 24 is provided with a groove section to form the first avoidance area, and a cavity structure is formed between the groove section and the valve seat to reduce noise.

In addition, the valve core 20 in this embodiment includes a fixed valve core and a movable valve core, the movable valve core is movably disposed in the communicating cavity 241, and a throttle hole is disposed on the movable valve core to implement bidirectional throttling. A valve port is arranged between the inlet and the outlet of the throttle valve, and the throttle valve is provided with a movable valve rod for opening and closing the valve port so as to realize a stop function.

From the above description, it can be seen that the above-mentioned embodiments of the present invention achieve the following technical effects: through making the interior fluid entering cavity structure of flow channel cushion, can effectively reduce the noise.

It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments according to the present application. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof, unless the context clearly indicates otherwise.

The relative arrangement of the components and steps, the numerical expressions, and numerical values set forth in these embodiments do not limit the scope of the present application unless specifically stated otherwise. Meanwhile, it should be understood that the sizes of the respective portions shown in the drawings are not drawn in an actual proportional relationship for the convenience of description. Techniques, methods, and apparatus known to those of ordinary skill in the relevant art may not be discussed in detail but are intended to be part of the specification where appropriate. In all examples shown and discussed herein, any particular value should be construed as merely illustrative, and not limiting. Thus, other examples of the exemplary embodiments may have different values. It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, further discussion thereof is not required in subsequent figures.

In the description of the present application, it is to be understood that the orientation or positional relationship indicated by the directional terms such as "front, rear, upper, lower, left, right", "lateral, vertical, horizontal" and "top, bottom", etc., are generally based on the orientation or positional relationship shown in the drawings, and are used for convenience of description and simplicity of description only, and in the case of not making a reverse description, these directional terms do not indicate and imply that the device or element being referred to must have a particular orientation or be constructed and operated in a particular orientation, and therefore, should not be considered as limiting the scope of the present application; the terms "inner and outer" refer to the inner and outer relative to the profile of the respective component itself.

Spatially relative terms, such as "above … …," "above … …," "above … …," "above," and the like, may be used herein for ease of description to describe one device or feature's spatial relationship to another device or feature as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if a device in the figures is turned over, devices described as "above" or "on" other devices or configurations would then be oriented "below" or "under" the other devices or configurations. Thus, the exemplary term "above … …" can include both an orientation of "above … …" and "below … …". The device may be otherwise variously oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.

It should be noted that the terms "first", "second", and the like are used to define the components, and are only used for convenience of distinguishing the corresponding components, and the terms have no special meanings unless otherwise stated, and therefore, the scope of protection of the present application is not to be construed as being limited.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. 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. A throttle valve, comprising:

a valve seat (10);

the valve core (20) is arranged in the valve seat (10), and a flow passage is arranged on the valve core (20);

wherein a cavity structure (30) is arranged between the valve core (20) and the valve seat (10), and the flow channel is communicated with the cavity structure (30).

2. The throttle valve according to claim 1, characterized in that a communication channel (22) is further provided on the spool (20), one end of the communication channel (22) is communicated with the flow channel, and the other end of the communication channel (22) is communicated with the cavity structure (30).

3. Throttle valve according to claim 1, characterized in that the side of the spool (20) is provided with a first escape area (23), which first escape area (23) forms the cavity structure (30); and/or the presence of a gas in the gas,

and a second avoidance area (11) is arranged on the inner wall of the valve seat (10), and the second avoidance area (11) forms the cavity structure (30).

4. The throttle valve according to claim 1, characterized in that a first bypass area (23) is arranged at the side of the valve core (20), a second bypass area (11) is arranged on the inner wall of the valve seat (10), and the first bypass area (23) is communicated with the second bypass area (11) so that the first bypass area (23) and the second bypass area (11) form the cavity structure (30).

5. The throttling valve according to claim 3 or 4,

the first avoidance area (23) is a first annular groove; and/or the presence of a gas in the gas,

the second avoidance area (11) is a second annular groove.

6. The throttling valve according to claim 1, characterized in that the cavity structure (30) is a ring cavity structure.

7. The throttle valve according to claim 2, wherein the number of the communication passages (22) is at least two, and at least two of the communication passages (22) are provided on the spool (20) at intervals.

8. A throttling valve according to claim 2, characterized in that a plurality of said communication channels (22) are arranged circumferentially spaced around said flow-through channel.

9. The throttling valve according to claim 7, characterized in that the communication passage (22) is plural, the cavity structure (30) is plural, the plural communication passages (22) are provided in one-to-one correspondence with the plural cavity structures (30), and each communication passage (22) communicates with the corresponding cavity structure (30).

10. A throttling valve according to claim 9, characterized in that a plurality of said cavity structures (30) are arranged at intervals around the circumference of the flow-through passage.

11. The throttling valve according to claim 2, characterized in that the spool (20) comprises:

a main body section (24), wherein a communication cavity (241) is arranged on the main body section (24);

the throttling section is connected with the main body section (24), a throttling channel (21) is arranged on the throttling section, and the throttling channel (21) is communicated with the communication cavity (241) to form the circulation channel;

the communication channel (22) is arranged in the main body section (24), one end of the communication channel (22) is communicated with the communication cavity (241), and the other end of the communication channel (22) is communicated with the cavity structure (30); and/or the communication channel (22) is arranged on the throttling section, one end of the communication channel (22) is communicated with the throttling channel (21), and the other end of the communication channel (22) is communicated with the cavity structure.

12. The choke valve of claim 11, wherein the choke section comprises:

a neck section (25) connected with the main body section (24), the throttling channel (21) and the communication channel (22) are both arranged on the neck section (25), and the throttling channel (21) is communicated with the communication cavity (241);

the base (26) is arranged at one end, far away from the main body section (24), of the neck section (25), the base (26) is abutted against the inner wall of the valve seat (10), one side, close to the neck section (25), of the main body section (24) is abutted against the inner wall of the valve seat (10), and therefore the cavity structure (30) is defined by the main body section (24), the neck section (25), the base (26) and the valve seat (10).