Check valve for refrigerating system and refrigerating system
The one-way valve for refrigeration systems addresses cavitation and noise by incorporating silencers and a movable valve plate with a central axis, ensuring quiet operation and durability in high-temperature environments.
Patent Information
- Application Number
- CN202323549899.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2023-12-25
- Publication Date
- 2024-12-24
- Estimated Expiration
- 2033-12-25
AI Technical Summary
Cavitation and fluid dynamic noise are significant issues in existing one-way valves used in refrigeration systems, leading to loud noise and material degradation due to high temperatures.
A one-way valve design featuring silencers at the valve seat openings and a movable valve plate that silences fluid flow, combined with a central axis and positioning elements to control fluid direction and reduce noise, using high-temperature resistant materials like stainless steel, brass, and aluminum.
The design effectively silences fluid flow and reduces noise by converting elastic flow into bubbling flow, preventing cavitation and material failure, while maintaining operational integrity at high temperatures.
Smart Images
Figure CN222229554U_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the field of refrigeration technology, and in particular to a one-way valve for a refrigeration system and a refrigeration system. Background Art
[0002] At present, in the refrigeration systems of refrigeration equipment such as air conditioners and refrigerators, a one-way valve is usually used to control the flow direction of the refrigerant to prevent the refrigerant from flowing in the opposite direction.
[0003] The related technology provides a one-way valve core for air conditioning, in which a valve sleeve is arranged at a through hole for medium circulation; a bracket cover is arranged at the through hole outlet; a valve plate is located between the valve sleeve and the bracket, and the valve plate is slidably connected to the bracket; when the pressure on the valve plate toward the valve sleeve side is lower than that on the other side, the valve plate blocks the through hole outlet; and when the pressure on the valve plate toward the valve sleeve side is higher than that on the other side, the valve plate opens the through hole outlet; when the valve plate contacts the valve sleeve, the end face of the sheet-shaped valve plate blocks the end face of the through hole outlet of the valve sleeve, thereby improving the sealing effect through surface contact.
[0004] In the process of implementing the embodiments of the present disclosure, it is found that there are at least the following problems in the related art:
[0005] Cavitation occurs when the refrigerant flows through the one-way valve. Cavitation is the main source of fluid dynamic noise. When the fluid impacts the valve body, it will also generate loud noise.
[0006] It should be noted that the information disclosed in the above background technology section is only used to enhance the understanding of the background of the present application, and therefore may include information that does not constitute the prior art known to ordinary technicians in the field. Utility Model Content
[0007] In order to provide a basic understanding of some aspects of the disclosed embodiments, a brief summary is given below. The summary is not an extensive review, nor is it intended to identify key / critical components or delineate the scope of protection of these embodiments, but rather serves as a prelude to the detailed description that follows.
[0008] The embodiments of the present disclosure provide a one-way valve for a refrigeration system and a refrigeration system to enhance the effect of silencing and reducing noise.
[0009] According to a first aspect of an embodiment of the utility model, a one-way valve for a refrigeration system is provided, comprising: a valve seat, a first valve seat opening and a second valve seat opening are arranged opposite to each other along a fluid flow direction; a valve plate, located between the first valve seat opening and the second valve seat opening, and movably covering the first valve seat opening to block the first valve seat opening, thereby cutting off the flow of fluid from the second valve seat opening to the first valve seat opening, and the valve plate can move toward the second valve seat opening side along the fluid flow direction under the drive of the fluid to open the first valve seat opening, thereby conducting the flow of fluid from the first valve seat opening to the second valve seat opening; a silencer, arranged at the first valve seat opening with a gap between the first valve seat opening and the valve plate, and / or arranged at the second valve seat opening with a gap between the first valve seat opening and the valve plate.
[0010] Optionally, the silencer includes: a first silencer, which is covered on the first valve seat opening and has a first through hole to form a gap for fluid circulation; and a second silencer, which is covered on the second valve seat opening and has a second through hole to form a gap for fluid circulation.
[0011] Optionally, there are multiple first through holes, and the multiple first through holes are arranged along the circumference of the first muffler; and / or there are multiple second through holes, and the multiple second through holes are arranged along the circumference of the second muffler.
[0012] Optionally, the valve sheet fits the first muffler to cover the first through hole, and the size of the valve sheet is smaller than the size of the second muffler.
[0013] Optionally, the one-way valve for the refrigeration system also includes: a central axis, extending along the direction of fluid flow, the two ends of the central axis are respectively connected to the first silencer and the second silencer, and the central axis passes through the valve plate, and the valve plate can move along the central axis toward the first valve seat opening or the second valve seat opening.
[0014] Optionally, the first silencer is provided with a first positioning portion, the second silencer is provided with a second positioning portion, and both ends of the central axis respectively cooperate with the first positioning portion and the second positioning portion to position the central axis between the first silencer and the second silencer.
[0015] Optionally, the valve plate is provided with a central hole, the central axis passes through the central hole and is arranged in the valve plate, and the hole wall of the central hole is in contact with the central axis.
[0016] Optionally, at least one of the valve plate, the silencer, the valve seat and the central axis is made of any one of stainless steel, brass and aluminum.
[0017] Optionally, the first silencer, the second silencer and the valve plate are concentrically arranged.
[0018] According to a second aspect of an embodiment of the utility model, a refrigeration system is provided, comprising the one-way valve for a refrigeration system.
[0019] The one-way valve for a refrigeration system and the refrigeration system provided in the embodiments of the present disclosure can achieve the following technical effects:
[0020] A silencer is provided at the first valve seat opening and the second valve seat opening, so that the fluid can be silenced when flowing into or out of the one-way valve, thereby improving the effect of silencer and noise reduction. At the same time, when the fluid flows from the first valve seat opening to the second valve seat opening, the valve plate moves toward the second valve seat opening along the fluid flow direction under the drive of the fluid, and the fluid flows into the one-way valve from the gap between the silencer and the first valve seat opening, and flows out from the gap between the silencer and the second valve seat opening. Under normal conditions, the valve plate moves by its own weight to the cover at the first valve seat opening to achieve closure. When the fluid flows from the second valve seat opening to the first valve seat opening, the valve plate can block the first valve seat opening to prevent the fluid from flowing out of the first valve seat opening, thereby controlling the flow direction of the fluid and allowing the fluid to flow in one direction.
[0021] The above general description and the following description are exemplary and explanatory only and are not intended to limit the present application. BRIEF DESCRIPTION OF THE DRAWINGS
[0022] One or more embodiments are exemplarily described by corresponding drawings, which do not limit the embodiments. Elements with the same reference numerals in the drawings are shown as similar elements, and the drawings do not constitute a scale limitation, and wherein:
[0023] Figure 1 is a schematic diagram of the structure of a one-way valve for a refrigeration system provided by an embodiment of the present disclosure, wherein the direction indicated by the arrow is the direction of fluid flow;
[0024] Figure 2 is a schematic structural diagram of another one-way valve for a refrigeration system provided by an embodiment of the present disclosure, wherein the direction indicated by the arrow is the direction of fluid flow;
[0025] Figure 3 is a structural schematic diagram of another one-way valve for a refrigeration system provided by an embodiment of the present disclosure;
[0026] Figure 4 is a schematic structural diagram of a first sound-absorbing member provided in an embodiment of the present disclosure;
[0027] Figure 5 is a schematic structural diagram of a second muffler provided in an embodiment of the present disclosure;
[0028] Figure 6 is a schematic structural diagram of another one-way valve for a refrigeration system provided by an embodiment of the present disclosure;
[0029] Figure 7It is a structural schematic diagram of another one-way valve for a refrigeration system provided in an embodiment of the present disclosure.
[0030] Reference numerals:
[0031] 10: valve seat; 11: first valve seat opening; 12: second valve seat opening; 13: connection;
[0032] 20: valve plate;
[0033] 30: silencer; 31: first silencer; 311: first through hole; 312: first positioning portion; 32: second silencer; 321: second through hole; 322: second positioning portion;
[0034] 40: Central axis. DETAILED DESCRIPTION
[0035] In order to be able to understand the features and technical contents of the embodiments of the present disclosure in more detail, the implementation of the embodiments of the present disclosure is described in detail below in conjunction with the accompanying drawings. The attached drawings are for reference only and are not used to limit the embodiments of the present disclosure. In the following technical description, for the convenience of explanation, a full understanding of the disclosed embodiments is provided through multiple details. However, one or more embodiments can still be implemented without these details. In other cases, to simplify the drawings, well-known structures and devices can be simplified for display.
[0036] The terms "first", "second", etc. in the specification and claims of the disclosed embodiments and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the terms used in this way can be interchanged where appropriate for the disclosed embodiments described herein. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions.
[0037] In the embodiments of the present disclosure, the terms "upper", "lower", "inside", "middle", "outside", "front", "back" and the like indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings. These terms are mainly intended to better describe the embodiments of the present disclosure and their embodiments, and are not intended to limit the indicated devices, elements or components to have a specific direction, or to be constructed and operated in a specific direction. Moreover, in addition to being used to indicate directions or positional relationships, some of the above terms may also be used to indicate other meanings. For example, the term "upper" may also be used to indicate a certain dependency or connection relationship in certain circumstances. For those of ordinary skill in the art, the specific meanings of these terms in the embodiments of the present disclosure can be understood according to specific circumstances.
[0038] In addition, the terms "disposed", "connected", and "fixed" should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral structure; it can be a mechanical connection, or an electrical connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be an internal connection between two devices, elements, or components. For those of ordinary skill in the art, the specific meanings of the above terms in the embodiments of the present disclosure can be understood according to specific circumstances.
[0039] Unless otherwise stated, the term "plurality" means two or more.
[0040] In the embodiment of the present disclosure, the character " / " indicates that the preceding and following objects are in an "or" relationship. For example, A / B indicates: A or B.
[0041] The term "and / or" is a description of the association relationship between objects, indicating that three relationships can exist. For example, A and / or B means: A or B, or, A and B.
[0042] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present disclosure may be combined with each other.
[0043] At present, in the refrigeration systems of refrigeration equipment such as air conditioners and refrigerators, a one-way valve is usually used to control the flow direction of the refrigerant to prevent the refrigerant from flowing in the opposite direction.
[0044] The related technology provides a one-way valve core for air conditioning, in which a valve sleeve is arranged at a through hole for medium circulation; a bracket cover is arranged at the through hole outlet; a valve plate is located between the valve sleeve and the bracket, and the valve plate is slidably connected to the bracket; when the pressure on the valve plate toward the valve sleeve side is lower than that on the other side, the valve plate blocks the through hole outlet; and when the pressure on the valve plate toward the valve sleeve side is higher than that on the other side, the valve plate opens the through hole outlet; when the valve plate contacts the valve sleeve, the end face of the sheet-shaped valve plate blocks the end face of the through hole outlet of the valve sleeve, thereby improving the sealing effect through surface contact.
[0045] Cavitation occurs when the refrigerant flows through the one-way valve. Cavitation is the main source of fluid dynamic noise. When the fluid impacts the valve body, it will also generate loud noise.
[0046] At the same time, traditional one-way valves usually use plastic, rubber, springs, magnets and other structures that are not resistant to high temperatures. Common one-way valves used in refrigeration systems can be divided into float-type one-way valves, diaphragm-type one-way valves, and piston-type one-way valves. The internal valve core of the float-type one-way valve is made of nylon 66, and the temperature resistance is less than or equal to 120°C. There is a magnetic structure inside the diaphragm-type one-way valve, and demagnetization occurs when the temperature is higher than 200°C. The piston-type one-way valve uses a plastic gasket combined with a spring for sealing. High temperature will cause the gasket and spring to fail.
[0047] Combination Figure 1-5As shown, the embodiment of the present disclosure provides a one-way valve for a refrigeration system, including a valve seat 10, a valve plate 20 and a silencer 30, wherein the valve seat 10 is provided with a first valve seat opening 11 and a second valve seat opening 12 relatively along a fluid flow direction; the valve plate 20 is located between the first valve seat opening 11 and the second valve seat opening 12, and is movably covered on the first valve seat opening 11 to block the first valve seat opening 11, thereby cutting off the flow of fluid from the second valve seat opening 12 to the first valve seat opening 11, and the valve plate 20 can be driven by the fluid to move toward the second valve seat opening 12 along the fluid flow direction to open the first valve seat opening 11, thereby conducting the flow of fluid from the first valve seat opening 11 to the second valve seat opening 12; the silencer 30 is provided at the first valve seat opening 11 with a gap between it and the first valve seat opening 11, and / or is provided at the second valve seat opening 12 with a gap between it and the second valve seat opening 12.
[0048] The one-way valve is usually installed in the heat exchange pipeline of the refrigeration system along the up-down direction. The valve plate 20 has its own weight. Under normal conditions, the valve plate 20 covers the first valve seat opening 11 to keep the first valve seat opening 11 closed.
[0049] Optionally, the silencer 30 is disposed at the first valve seat opening 11 with a gap between the silencer 30 and the first valve seat opening 11 .
[0050] The silencer 30 is disposed at the first valve seat opening 11 to silence the refrigerant fluid flowing through the first valve seat opening 11, thereby achieving the effect of silencing and reducing noise. A gap is left between the silencer 30 and the first valve seat opening 11, so that the refrigerant fluid can flow through the gap.
[0051] Optionally, the silencer 30 is disposed at the second valve seat opening 12 with a gap between the silencer 30 and the second valve seat opening 12 .
[0052] The silencer 30 is disposed at the second valve seat opening 12 to silence the refrigerant fluid flowing through the second valve seat opening 12, thereby achieving the effect of silencing and reducing noise. A gap is left between the silencer 30 and the second valve seat opening 12, so that the refrigerant fluid can flow through the gap.
[0053] The silencer 30 realizes the silencer function by breaking the elastic flow shape of the gas-liquid two-phase flow into a bubbling flow shape. The elastic flow is very likely to generate refrigerant noise when it encounters the rupture of the valve internal structure. By fixing the position where the fluid noise generated by the elastic flow is generated at the first valve seat opening 11 and the second valve seat opening 12, the noise generated by the elastic flow contacting the valve plate 20 is avoided. Moreover, after fixing the noise position, the sound insulation can be achieved by coating the outside of the pipe with glue.
[0054] The one-way valve for refrigeration system provided by the embodiment of the present disclosure is provided with a muffler 30 at the first valve seat port 11 and the second valve seat port 12, so that the fluid can be muffled when flowing into or out of the one-way valve, thereby improving the muffler and noise reduction effect. At the same time, when the fluid flows from the first valve seat port 11 to the second valve seat port 12, the valve plate 20 moves toward the second valve seat port 12 side along the fluid flow direction under the drive of the fluid, and the fluid flows into the one-way valve from the gap between the muffler 30 and the first valve seat port 11, and flows out from the gap between the muffler 30 and the second valve seat port 12. Under normal conditions, the valve plate 20 moves to the cover at the first valve seat port 11 by its own weight to achieve closure. When the fluid flows from the second valve seat port 12 to the first valve seat port 11, the valve plate 20 can block the first valve seat port 11, prevent the fluid from flowing out of the first valve seat port 11, and control the flow direction of the fluid, so that the fluid flows in one direction.
[0055] Optionally, combined Figure 1-5 As shown, the silencer 30 includes a first silencer 31 and a second silencer 32. The first silencer 31 covers the first valve seat opening 11 and is provided with a first through hole 311 to form a gap for fluid circulation; the second silencer 32 covers the second valve seat opening 12 and is provided with a second through hole 321 to form a gap for fluid circulation.
[0056] The first valve seat opening 11 and the second valve seat opening 12 are both provided with a muffler 30. The first muffler 31 is covered on the first valve seat opening 11, and can block the first valve seat opening 11. A first through hole 311 is provided on the first muffler 31 to form a gap for fluid circulation. The second muffler 32 is covered on the second valve seat opening 12, and can block the second valve seat opening 12. A second through hole 321 is provided on the second muffler 32 to form a gap for fluid circulation.
[0057] Optionally, the first silencer 31 and the second silencer 32 may be in a sheet or plate structure, or may be in a structure with a one-way plane, and the one-way plane is arranged toward the inside of the one-way valve, so as to better cover the first valve seat opening 11 and the second valve seat opening 12 .
[0058] The silencer 30 may be a porous structure, and the first through hole 311 and the second through hole 321 may be circular, rhombus, triangular, elliptical, etc., to destroy the elastic flow of the fluid. The structure of the silencer 30 may be adjusted according to actual conditions, and the size of the first through hole 311 and the second through hole 321 may also be adjusted.
[0059] At the same time, the provision of the first silencer 31 and the second silencer 32 can also limit the movement range of the valve plate 20 , so that the valve plate 20 moves within the range between the first silencer 31 and the second silencer 32 .
[0060] Optionally, combined Figure 4 As shown, there are multiple first through holes 311 , and the multiple first through holes 311 are arranged along the circumferential direction of the first muffler 31 .
[0061] The first silencer 31 is provided with a plurality of first through holes 311 along the circumferential direction. The plurality of first through holes 311 can better break the elastic flow shape of the gas-liquid two-phase flow in the fluid in contact with the first silencer 31 into a bubble flow shape, thereby reducing the volume of a single bubble formed by the gas in the fluid, so that the fluid flowing into the one-way valve is free of cavitation, thereby more effectively realizing the silencer function.
[0062] Optionally, a plurality of first through holes 311 are evenly arranged on the first muffler 31 .
[0063] Optionally, combined Figure 5 As shown, there are multiple second through holes 321 , and the multiple second through holes 321 are arranged along the circumferential direction of the second muffler 32 .
[0064] The second silencer 32 is provided with a plurality of second through holes 321 along the circumferential direction. The plurality of second through holes 321 can better break the elastic flow shape of the gas-liquid two-phase flow in the fluid in contact with the second silencer 32 into a bubble flow shape, thereby reducing the volume of a single bubble formed by the gas in the fluid, so that the fluid flowing into the one-way valve is free of cavitation, thereby more effectively realizing the silencer function.
[0065] Optionally, a plurality of second through holes 321 are evenly arranged on the second muffler 32 .
[0066] Optionally, combined Figure 1-4 As shown, the valve plate 20 fits the first silencer 31 to cover the first through hole 311 , and the size of the valve plate 20 is smaller than the size of the second silencer 32 .
[0067] At the first valve seat opening 11 , the valve plate 20 and the first silencer 31 fit together to cover the first through hole 311 , so that the valve plate 20 and the first silencer 31 cooperate to better block the first valve seat opening 11 and prevent fluid backflow.
[0068] At the second valve seat opening 12, when the valve plate 20 moves to the second muffler 32 along the direction of fluid flow, since the size of the valve plate 20 is smaller than the size of the second muffler 32, at least part of the second through hole 321 on the second muffler 32 is not blocked, allowing the fluid to flow out through the second through hole 321.
[0069] Optionally, the size of the valve plate 20 matches the size of the first valve seat opening 11, and the outer diameter of the valve plate 20 is equal to or close to the inner diameter of the first valve seat opening 11. In this way, after the valve plate 20 falls to the first valve seat opening 11, it can better fit and seal with the first muffler plate.
[0070] Optionally, the valve plate 20 may be a circular flat plate, the first valve seat opening 11 is a circular opening, the size of the valve plate 20 is smaller than and infinitely close to the size of the first valve seat opening 11, and the circular flat plate can fit with the first muffler 31 after passing through the circular opening. The valve plate 20 may also be a lower arc-shaped structure, the size of the valve plate 20 is increased accordingly, so that the diameter of the valve plate 20 is larger than the diameter of the first valve seat opening 11, and there is a chamfer at the first valve seat opening 11, so that the contact surface between the lower arc-shaped structure and the first valve seat opening 11 can be sealed.
[0071] Optionally, combined Figure 1-3 As shown, the one-way valve for the refrigeration system also includes a central axis 40, which is extended along the direction of fluid flow, and the two ends of the central axis 40 are respectively connected to the first silencer 31 and the second silencer 32, and the central axis 40 passes through the valve plate 20, and the valve plate 20 can move along the central axis 40 toward the first valve seat opening 11 or the second valve seat opening 12.
[0072] The two ends of the central axis 40 are respectively connected to the first silencer 31 and the second silencer 32. The first silencer 31 and the second silencer 32 play a positioning role for the central axis 40, and the central axis 40 plays a supporting role for the first silencer 31 and the second silencer 32. The central axis 40 is arranged through the valve plate 20 to guide the movement direction of the valve plate 20. Under the action of its own weight, the valve plate 20 moves along the central axis 40 toward the first valve seat opening 11, fits with the first silencer 31, and blocks the first valve seat opening 11. The setting of the central axis 40 enables the valve plate 20 to move to the first silencer 31 more accurately and quickly, and seal the first valve seat opening 11. Under the push of the fluid, the valve plate 20 moves along the central axis 40 toward the second valve seat opening 12, so that the fluid flows out of the second valve seat opening 12.
[0073] Optionally, combined Figure 1-5 As shown, the first silencer is provided with a first positioning portion 312 , and the second silencer is provided with a second positioning portion 322 . The two ends of the central axis 40 respectively cooperate with the first positioning portion 312 and the second positioning portion 322 to position the central axis 40 between the first silencer 31 and the second silencer 32 .
[0074] One end of the central shaft 40 is positioned at the first muffler plate through the first positioning portion 312, and the other end of the central shaft 40 is positioned at the second muffler plate through the second positioning portion 322. The first positioning portion 312 and the second positioning portion 322 may be positioning holes, positioning slots, and other structures.
[0075] Combination Figure 4-5 As shown, the first positioning portion 312 is a first positioning hole, the second positioning portion 322 is a second positioning hole, and both ends of the central axis 40 are respectively inserted into the first positioning hole and the second positioning hole and fixed by spot welding so that the central axis 40 is positioned between the first silencer 31 and the second silencer 32.
[0076] Optionally, the valve plate 20 is provided with a central hole, and the central axis 40 passes through the central hole and is arranged in the valve plate 20 , and the hole wall of the central hole is in contact with the central axis 40 .
[0077] The central axis 40 passes through the central hole of the valve disc 20, so that the valve disc 20 can move along the central axis 40 toward the first valve seat opening 11 or the second valve seat opening 12. The inner diameter of the central hole is larger than and infinitely close to the diameter of the central axis 40, so that the valve disc 20 can move along the central axis 40, and there can also be a slight sliding friction between the central hole and the central axis 40. In this way, the central hole is not too large to cause the valve disc 20 itself to deflect during the movement, shake due to the impact of the fluid, and generate structural noise.
[0078] Optionally, at least one of the valve plate 20 , the silencer 30 , the valve seat 10 and the central shaft 40 is made of any one of stainless steel, brass and aluminum.
[0079] The valve plate 20, the silencer 30, the valve seat 10 and the central shaft 40 are made of high temperature resistant metal materials such as stainless steel, brass, and aluminum. The one-way valve adopts a full metal structure, which can be welded at high temperature, can be integrally formed with the pipe group, and can be used in a high temperature fluid environment. The inner wall is sealed or fixed by tunnel furnace welding or rolling grooves, and the groove pressing process.
[0080] Optionally, combined Figure 1-3 As shown, the first muffler 31, the second muffler 32 and the valve plate 20 are arranged concentrically. In this way, the valve plate 20 can be more accurately fitted to the first muffler 31, cover the first valve seat opening 11, and move to the second muffler 32 more accurately without blocking the gap, so that the fluid can pass through the second valve seat opening 12 smoothly.
[0081] According to different systems in which the one-way valve is used, the connection between the valve seat 10 and the first valve seat opening 11 can be adjusted to different structures to meet different flow requirements in the system. Figure 6-7 As shown, the connection 13 of the valve seat 10 toward the first valve seat opening 11 can be adjusted to a conical structure or an arc structure.
[0082] An embodiment of the present disclosure provides a refrigeration system, comprising the one-way valve for a refrigeration system.
[0083] The refrigeration system provided by the embodiment of the present disclosure includes the one-way valve for a refrigeration system described in any one of the above embodiments, and thus has all the beneficial effects of the one-way valve for a refrigeration system described in any one of the above embodiments, which will not be repeated here.
[0084] The above description and the accompanying drawings sufficiently illustrate the embodiments of the present disclosure to enable those skilled in the art to practice them. Other embodiments may include structural and other changes. The embodiments represent only possible variations. Unless explicitly required, individual components and functions are optional, and the order of operations may vary. Portions and features of some embodiments may be included in or replace portions and features of other embodiments. The embodiments of the present disclosure are not limited to the structures described above and shown in the accompanying drawings, and various modifications and changes may be made without departing from the scope thereof. The scope of the present disclosure is limited only by the appended claims.
Claims
1. A one-way valve for a refrigeration system, characterized in that: include: A valve seat, having a first valve seat opening and a second valve seat opening opposite to each other along a fluid flow direction; A valve plate, located between the first valve seat opening and the second valve seat opening, and movably covering the first valve seat opening to block the first valve seat opening so as to cut off the flow of fluid from the second valve seat opening to the first valve seat opening, and the valve plate can move toward the second valve seat opening side along the fluid flow direction under the drive of the fluid to open the first valve seat opening so as to conduct the flow of fluid from the first valve seat opening to the second valve seat opening; The silencer is arranged at the first valve seat opening with a gap between the silencer and the first valve seat opening, and / or is arranged at the second valve seat opening with a gap between the silencer and the second valve seat opening.
2. The one-way valve for a refrigeration system according to claim 1, characterized in that: Sound-absorbing parts, including: A first silencer is disposed on the first valve seat opening and is provided with a first through hole to form a gap for fluid to flow; The second silencer is covered on the second valve seat opening and is provided with a second through hole to form a gap for fluid to flow.
3. The one-way valve for a refrigeration system according to claim 2, characterized in that: There are multiple first through holes, and the multiple first through holes are arranged along the circumference of the first muffler; and / or, There are multiple second through holes, and the multiple second through holes are arranged along the circumferential direction of the second muffler.
4. The one-way valve for a refrigeration system according to claim 2, characterized in that: The valve plate is fitted with the first muffler to cover the first through hole, and the size of the valve plate is smaller than the size of the second muffler.
5. The one-way valve for a refrigeration system according to any one of claims 2 to 4, characterized in that: Also includes: The central axis is extended along the fluid flow direction, and the two ends of the central axis are respectively connected to the first silencer and the second silencer, and the central axis passes through the valve plate, and the valve plate can move along the central axis toward the first valve seat opening or the second valve seat opening.
6. The one-way valve for a refrigeration system according to claim 5, characterized in that: The first muffler piece is provided with a first positioning portion, the second muffler piece is provided with a second positioning portion, and both ends of the central axis respectively cooperate with the first positioning portion and the second positioning portion to position the central axis between the first muffler piece and the second muffler piece.
7. The one-way valve for a refrigeration system according to claim 5, characterized in that: The valve plate is provided with a central hole, the central axis passes through the central hole and is arranged in the valve plate, and the hole wall of the central hole is in contact with the central axis.
8. The one-way valve for a refrigeration system according to claim 5, characterized in that: At least one of the valve plate, the silencer, the valve seat and the central axis is made of any one of stainless steel, brass and aluminum.
9. The one-way valve for a refrigeration system according to any one of claims 2 to 4, characterized in that: The first silencer, the second silencer and the valve plate are concentrically arranged.
10. A refrigeration system, characterized in that: The invention comprises a one-way valve for a refrigeration system according to any one of claims 1 to 9.