Throttle valve assembly with noise elimination function and large filtering capacity
By integrating the throttling, filtering and silencing functions into a throttle valve assembly, the problems of high cost and complex structure in the existing technology are solved, efficient filtering and noise reduction of the refrigerant are achieved, and the piping structure of the refrigeration system is simplified.
Patent Information
- Application Number
- CN202422216667.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-10
- Publication Date
- 2025-09-09
- Estimated Expiration
- 2034-09-10
AI Technical Summary
In the prior art, throttling, silencing and filtering functions are implemented by different components, resulting in high cost and complex structure of the refrigeration system.
A throttle valve assembly with a silencer function and large filtering capacity is designed, integrating the throttling and filtering functions into one assembly. The structural design of the movable valve core and filter assembly is combined with copper and stainless steel materials to achieve refrigerant throttling and noise reduction effects, and increase the filter size.
It simplifies the piping structure of the refrigeration system, reduces costs, achieves smooth circulation and efficient filtration of the refrigerant, reduces noise, and avoids system dirt and blockage problems.
Smart Images
Figure CN223318584U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of refrigeration components, and more particularly to a throttle valve assembly with a muffler function and high filtering capacity. Background Art
[0002] In the field of air conditioning, the refrigerant flows in two different directions during cooling and heating. Figure 8 The structure shown is a conventional system, comprising a piping assembly with two throttle valves (I-1 and I-2) installed on each pipe, an S-shaped copper tube (I-4) to eliminate refrigerant flow noise during throttling, and a large-area mesh filter (I-3) for system filtration. This system separates throttling, noise elimination, and filtration into three separate components. When assembled into a complete refrigeration system, this increases overall system cost and complicates the structure. Utility Model Content
[0003] The purpose of the utility model is to provide a throttle valve assembly with a reasonable structure, a muffler function and a large filtering capacity in order to overcome the shortcomings of the existing technology.
[0004] A throttle valve assembly with a silencer function and high filtering capacity comprises a cylinder, one end of which is sleeved with a connecting transition seat, the lower portion of which is tightly fitted with a valve seat, the lower portion of which abuts against a mesh frame of a filter assembly, the mesh frame of the filter assembly being in contact with the inner wall of the cylinder; a movable valve core is provided in the valve seat, the two ends of the valve seat are provided with a first step and a second step, a circular small hole is provided on the axis of the movable valve core, and an edge is provided on the outer side; when the movable valve core and the first step of the valve seat at the end of the filter assembly are in contact, the refrigerant flows out from the small hole in the center for throttling; when the movable valve core and the second step of the valve seat at the end of the connecting transition seat are in contact, the refrigerant flows out from the gap between the edges and the small hole formed after the movable valve core and the valve seat are assembled, and is in a conducting state. The utility model has a reasonable structure and simultaneously has the functions of throttling, increasing filtering capacity and reducing noise. In actual use, the complex pipeline structure is optimized, the throttle valves and S-shaped bends on the pipeline are reduced, and the cost is reduced.
[0005] As a further improvement and supplement to the above solution, the present invention also includes the following additional technical features:
[0006] The outer sides of both ends of the cylinder are respectively provided with an upper end cover or a lower end cover, and the combination of the upper end cover and the lower end cover has a reasonable structure.
[0007] The material of the upper end cover and the lower end cover is red copper, and the material of the cylinder is stainless steel, which has low cost and is convenient for connecting with client products at both ends.
[0008] The outer side is provided with two or more edges, which are in contact with the inner wall of the valve seat and can slide axially. The gap between the edges formed after the valve core and the valve seat are assembled is used as a refrigerant flow channel in the conductive state. The structure is reasonable and the refrigerant flows smoothly.
[0009] The first step of the valve seat is provided with a conical surface which fits the movable valve core, and the second step of the valve seat is provided with a riveted arc which fits one end of the movable valve core for position limiting. The structure is reasonable and the sealing performance is good.
[0010] The filter assembly is made of copper or stainless steel, ensuring a long service life. Furthermore, the filter is larger than the smaller filters found in existing throttle valves, increasing filtration capacity and ensuring cleaner refrigerant, eliminating system clogging issues.
[0011] The following beneficial effects can be achieved by using the utility model:
[0012] The complex pipeline structure has been optimized, the throttle valves and S-shaped bends on the pipeline have been reduced, and the cost has been reduced.
[0013] The throttling and conduction functions of the throttle valve are realized to meet the flow requirements of the system for cooling and heating.
[0014] The valve core is set in the cylinder. When the refrigerant flows, the tail end of the valve seat and the filter cylinder form a larger expansion ratio, which has the same noise reduction effect as the expansion cavity silencer product.
[0015] The filter size has become larger, which increases the filtering capacity, makes the refrigerant cleaner, and eliminates the problem of system dirt and blockage. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] Figure 1 It is a structural diagram of the first embodiment of the present utility model.
[0017] Figure 2 It is a structural diagram of the second embodiment of the present utility model.
[0018] Figure 3 It is a structural diagram of the third embodiment of the present utility model.
[0019] Figure 4 It is a structural diagram of the fourth embodiment of the present utility model.
[0020] Figure 5 It is a structural diagram of the movable valve core 4 in the present utility model.
[0021] Figure 6 It is a front view of the movable valve core 4 in the present utility model.
[0022] Figure 7 It is a structural schematic diagram of the utility model in use state.
[0023] Figure 8 It is a structural diagram of the prior art in use. DETAILED DESCRIPTION
[0024] The specific implementation of the present utility model is described in detail below with reference to the accompanying drawings.
[0025] like Figure 1-7 As shown, the utility model is a throttle valve assembly with a silencer function and a large filtering characteristic.
[0026] The throttle valve assembly with a muffler function and a large filtering capacity described in this embodiment is as follows: Figure 1 As shown, it includes a cylinder 1, which is a one-piece cylindrical structure with a large center and small ends. One end of the cylinder 1 is sleeved with a connecting transition seat 5, which is composed of two cylindrical sleeves of different sizes, and one end of the connecting transition seat 5 extends outward from the outer end of the cylinder 1. The lower part of the connecting transition seat 5 is tightly fitted with a valve seat 3, which abuts against the mesh frame of the filter assembly 2. The mesh frame of the filter assembly 2 is in contact with the inner wall of the cylinder 1. A movable valve core 4 is disposed within the valve seat 3. The valve seat 3 has a first step and a second step at each end. The movable valve core 4 has a circular hole 41 at the axis position and an edge 42 on the outer side. When the movable valve core 4 and the first step of the valve seat 3 at the end of the filter assembly 2 are in contact, the refrigerant flows out of the hole 41 for throttling. When the movable valve core 4 and the second step of the valve seat 3 at the end of the connecting transition seat 5 are in contact, the refrigerant flows out through the gap between the edge 42 formed by the assembly of the movable valve core 4 and the hole 41, thus being in a conductive state. The transitions of all parts are connected by arcs to strengthen the structure. The valve seat 3 has a conical surface at one end and an arc surface at the other end, which are used for sealing and reverse limiting respectively.
[0027] Furthermore, if Figure 2-4 As shown, the outer sides of the cylinder 1 are equipped with upper end caps 6 or lower end caps 7, or a combination of upper end caps 6 and lower end caps 7. The upper end caps 6, the cylinder 1, and the connecting transition seat 5 are connected by brazing. The upper end caps 6 and lower end caps 7 are composed of two cylindrical sleeves of different sizes. The structure of the cylinder 1 can be customized according to the needs.
[0028] Furthermore, the material of the upper end cover 6 and the lower end cover 7 is copper, and the material of the cylinder 1 is stainless steel.
[0029] Furthermore, the movable valve core 4 is provided with two or more edges 42 on its exterior. The outer surfaces of the edges 42 mate with the inner cavity of the valve seat 3 . The gaps formed between the edges 42 and the inner wall of the valve seat 3 allow for the circulation of refrigerant when the refrigerant is in the open state. In this embodiment, there are three edges 42 , and the cross-section of the edges 42 is rectangular. The cross-section of the edges 42 may be of other shapes known in the art.
[0030] Furthermore, the first step of the valve seat 3 is provided with a conical surface that mates with the movable valve core 4. The second step of the valve seat 3 is provided with a riveted arc that mates with one end of the movable valve core 4 for position limiting. The other end of the movable valve core 4 is provided with a cylindrical section that mates with the conical surface to achieve a seal. After the movable valve core 4 is installed in the valve seat 3, the rear end of the valve seat 3 is partially riveted to prevent the movable valve core 4 from falling out of the rear end of the valve seat 4.
[0031] Furthermore, the material of the filter assembly 2 is stainless steel or copper. Compared with the prior art, the size of the filter assembly 2 is greatly increased.
[0032] When this throttle valve assembly with silencer function and large filtering capacity is used, Figure 7 As shown, in the present invention, only one throttle valve I-1 on a pipeline is required, and the throttle valve and the filter on a pipeline are integrated. At the same time, noise reduction is achieved inside the throttle valve, and the S-shaped bend pipe of the original structure is omitted. The structure becomes simple, the installation becomes convenient and quick, and the production cost is reduced.
[0033] The above are preferred embodiments of the present invention and do not limit the protection scope of the present invention. Any modifications and improvements made by those skilled in the art based on the design ideas of the present invention should be considered as within the protection scope of the present invention.
Claims
1. A throttle valve assembly with a muffler function and a large filtering capacity, comprising a barrel (1), characterized in that: One end of the cylinder (1) is sleeved with a connecting transition seat (5), the lower part of the connecting transition seat (5) is tightly fitted with a valve seat (3), the lower part of the valve seat (3) abuts against the mesh frame of the filter assembly (2), and the mesh frame of the filter assembly (2) is fitted with the inner wall of the cylinder (1); a movable valve core (4) is provided in the valve seat (3), and a first step and a second step are provided at both ends of the valve seat (3); a circular small hole (41) is provided on the axis core position of the movable valve core (4), and an edge (42) is provided on the outer side; when the movable valve core (4) and the first step of the valve seat (3) at the end of the filter assembly (2) are fitted, the refrigerant flows out from the small hole (41) for throttling; when the movable valve core (4) and the second step of the valve seat (3) at the end of the connecting transition seat (5) are fitted, the refrigerant flows out from the gap between the edge (42) formed after the movable valve core (4) and the valve seat (3) are assembled and is in a conducting state.
2. The throttle valve assembly with a muffler function and a large filtering capacity according to claim 1, characterized in that: The outer side of the cylinder (1) is provided with an upper end cover (6) or a lower end cover (7), and a combination of the upper end cover (6) and the lower end cover (7).
3. The throttle valve assembly with a muffler function and a large filtering capacity according to claim 2, characterized in that: The material of the upper end cover (6) and the lower end cover (7) is copper, and the material of the cylinder (1) is stainless steel.
4. The throttle valve assembly with a muffler function and a large filtering capacity according to claim 1, characterized in that: The outer side of the movable valve core (4) is provided with two or more edges (42), the edges (42) are in contact with the inner wall of the valve seat (3) and can slide axially, and the gap between the edges formed after the valve core (4) and the valve seat (3) are assembled is used as a refrigerant flow channel in the conductive state.
5. The throttle valve assembly with a muffler function and a large filtering capacity according to claim 1, characterized in that: The first step of the valve seat (3) is provided with a conical surface that fits with the movable valve core (4), and the second step of the valve seat (3) is provided with a riveted arc that fits with one end of the movable valve core (4) for limiting position.
6. The throttle valve assembly with a muffler function and a large filtering capacity according to any one of claims 1 to 5, characterized in that: The material of the filter screen assembly (2) is copper or stainless steel.