An air conditioning refrigeration valve core tube

Abstract

This utility model relates to the field of air conditioning refrigeration valve technology, specifically to an air conditioning refrigeration valve core tube, including a refrigeration valve core tube with a liquid inlet at the bottom and a liquid outlet at the top. A flow tube is installed inside the liquid outlet, with a limiting plate at one end. A buffer assembly is fitted inside the flow tube. The buffer assembly is used to buffer the impact of refrigerant in the refrigeration valve core tube. When the refrigerant enters the refrigeration valve core tube from the liquid inlet, the valve typically does not open slowly but instantaneously, causing the refrigerant to flow at high speed into the flow tube. The limiting plate inside the flow tube, along with the buffer assembly, makes the fluid flow smoother, reduces pressure fluctuations, and thus optimizes the system's operational stability. Compared to existing technologies, this application effectively buffers the high-speed impact force of the refrigerant when the valve opens instantaneously, reducing the impact and wear on the refrigeration valve core tube and improving the stability of system operation.

Description

Technical Field

[0001] This utility model relates to the field of air conditioning refrigeration valve technology, and in particular to an air conditioning refrigeration valve core tube. Background Technology

[0002] In air conditioning systems, valves typically rely on solenoid valves or mechanical valves to open and close when controlling the flow of refrigerant.

[0003] However, traditional valves often open instantaneously, causing refrigerant to enter the flow path at high speed, resulting in severe pressure fluctuations and fluid shocks within the system. Over long-term operation, this shock effect can cause pipe vibration, valve core wear, and decreased sealing performance, affecting system stability and service life.

[0004] Therefore, this utility model proposes an air conditioning refrigeration valve core tube to meet the requirements of the high-speed impact force of refrigerant when the valve is opened instantaneously, reduce the impact and wear on the refrigeration valve core tube, and improve the stability of system operation. Utility Model Content

[0005] In view of this, the purpose of this utility model is to propose an air conditioning refrigeration valve core tube to solve the problem of impact and wear on the refrigeration valve core tube caused by the high-speed impact force of the refrigerant when the buffer valve is opened instantaneously.

[0006] To achieve the above objectives, this utility model provides an air conditioning refrigeration valve core tube, including a refrigeration valve core tube with a liquid inlet at the bottom and a liquid outlet at the top. A flow tube is provided inside the liquid outlet, and a limiting plate is provided at one end of the flow tube. A buffer assembly is sleeved inside the flow tube. The buffer assembly is used to buffer the impact of refrigerant in the refrigeration valve core tube.

[0007] Preferably, the buffer assembly includes a movable rod that is slidably sleeved inside the flow tube, a push plate is slidably disposed at one end of the movable rod, and a flow groove is formed on the surface of the movable rod.

[0008] Preferably, the surface of the flow tube has multiple sets of pressure relief holes, which are arranged in a deflected manner to one side, with the same spacing between the multiple sets of pressure relief holes, and the diameter of the pressure relief holes decreasing to one side.

[0009] Preferably, a guide groove is provided on the inner wall of the flow tube. The guide groove is an arc shape that bends toward the side closer to the limiting plate. A set of guide rods is provided on the bottom surface of the moving rod, and the guide rods are in contact with the guide groove.

[0010] Preferably, a buffer spring is sleeved on the moving rod, with one end of the buffer spring disposed on the limiting plate and the other end of the buffer spring disposed on the pushing plate.

[0011] Preferably, the cross-section of the movable rod is I-shaped, and the multiple sets of pressure relief holes are in contact with the flow groove.

[0012] The beneficial effects of this utility model are:

[0013] 1. When refrigerant enters the refrigeration valve core tube from the inlet, the valve typically opens instantaneously rather than slowly, causing the refrigerant to flow at high speed into the flow pipe. The flow pipe contains a limiting plate and a buffer assembly. This buffer assembly absorbs and buffers the refrigerant's flow velocity and impact force when the valve opens instantaneously, resulting in smoother fluid flow, reduced pressure fluctuations, and optimized system stability. By installing a buffer assembly inside the flow pipe, the high-speed impact force of the refrigerant when the valve opens instantaneously can be effectively buffered, reducing impact and wear on the refrigeration valve core tube and improving system stability.

[0014] 2. When the refrigerant enters the refrigeration valve core tube through the inlet, the valve opens instantly, and the refrigerant flows at high speed into the flow pipe. At this time, the refrigerant pushes the sliding rod, which is slidably fitted inside the flow pipe, causing it to slide along the guide groove on the inner wall of the flow pipe. The guide groove has an arc-shaped structure and cooperates with the guide rod at the bottom of the sliding rod, causing the sliding rod to generate a certain rotational motion. The rotational motion of the sliding rod under the action of the guide groove makes the fluid flow more uniform, reduces turbulence, and improves heat exchange efficiency. At the same time, the pressure relief holes on the flow pipe are deflected to one side and their diameter decreases progressively. The arrangement of the refrigerant holes allows for gradual pressure reduction as it flows through holes of different diameters, achieving a smooth transition in flow rate. Furthermore, the flow grooves on the moving rod further regulate the flow rate, ensuring uniform refrigerant flow, preventing excessive pressure fluctuations within the system, and improving flow stability. Simultaneously, one end of the buffer spring is fixed to the limiting plate, while the other end connects to the push plate, providing a buffering effect when the moving rod is subjected to fluid impact. The buffer spring effectively absorbs the impact energy when the valve opens, reducing valve core wear, improving system lifespan and reliability, preventing violent movement of the valve core due to instantaneous opening, and enhancing flow stability. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only for this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1This is a schematic diagram of the present invention;

[0017] Figure 2 This is a partial cross-sectional view of the refrigeration valve core tube of this utility model;

[0018] Figure 3 This is a schematic diagram of the buffer component of this utility model;

[0019] Figure 4 This is a partial cross-sectional view of the flow tube of this utility model.

[0020] The following are marked in the diagram: 1. Refrigeration valve core tube; 2. Liquid inlet; 3. Liquid outlet; 4. Flow pipe; 5. Pressure relief hole; 6. Limiting plate; 7. Moving rod; 8. Guide rod; 9. Push plate; 10. Buffer spring; 11. Flow groove; 12. Guide groove. Detailed Implementation

[0021] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to specific embodiments.

[0022] It should be noted that, unless otherwise defined, the technical or scientific terms used in this utility model should have the ordinary meaning understood by one of ordinary skill in the art to which this utility model pertains. The terms "first," "second," and similar terms used in this utility model do not indicate any order, quantity, or importance, but are merely used to distinguish different components. Terms such as "comprising" or "including" mean that the element or object preceding the word encompasses the elements or objects listed following the word and their equivalents, without excluding other elements or objects. Terms such as "connected" or "linked" are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect. Terms such as "upper," "lower," "left," and "right" are used only to indicate relative positional relationships; when the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0023] like Figures 1-4 As shown, an air conditioning refrigeration valve core tube includes a refrigeration valve core tube 1, with a liquid inlet 2 at the bottom and a liquid outlet 3 at the top. A flow tube 4 is provided inside the liquid outlet 3, and a limiting plate 6 is provided at one end of the flow tube 4. A buffer assembly is sleeved inside the flow tube 4. The buffer assembly is used to buffer the impact of refrigerant in the refrigeration valve core tube 1.

[0024] When the refrigerant enters the refrigeration valve core tube 1 from the liquid inlet 2, the valve usually does not open slowly but instantly, causing the refrigerant to flow at high speed into the flow pipe 4. The flow pipe 4 is equipped with a limiting plate 6 and a buffer assembly. The buffer assembly absorbs and buffers the flow rate and impact force of the refrigerant when the valve opens instantaneously, making the fluid flow more stable, reducing pressure fluctuations, and thus optimizing the system's operational stability. By setting a buffer assembly inside the flow pipe 4, the high-speed impact force of the refrigerant when the valve opens instantaneously can be effectively buffered, reducing the impact and wear on the refrigeration valve core tube 1 and improving the stability of the system operation.

[0025] like Figures 1-4 As shown, the buffer assembly includes a movable rod 7 slidably sleeved within the flow tube 4. The movable rod 7 has an I-shaped cross-section, and multiple sets of pressure relief holes 5 are in contact with the flow groove 11. A push plate 9 is slidably mounted on one end of the movable rod 7, and the surface of the movable rod 7 has the flow groove 11. Multiple sets of pressure relief holes 5 are opened on the surface of the flow tube 4. The pressure relief holes 5 are arranged with a slight deviation to one side, and the spacing between the multiple sets of pressure relief holes 5 is the same. The diameter of the pressure relief holes 5 decreases towards the side closer to the limiting plate 6. A guide groove 12 is opened on the inner wall of the flow tube 4. The guide groove 12 is an arc-shaped curve bent to one side. A set of guide rods 8 is provided on the bottom surface of the movable rod 7, and the guide rods 8 are in contact with the guide groove 12. A buffer spring 10 is sleeved on the movable rod 7. One end of the buffer spring 10 is mounted on the limiting plate 6, and the other end of the buffer spring 10 is mounted on the push plate 9.

[0026] When the refrigerant enters the refrigeration valve core tube 1 from the inlet 2, the valve opens instantly, and the refrigerant flows at high speed into the flow pipe 4. At this time, the refrigerant pushes the sliding rod 7, which is slidably sleeved inside the flow pipe 4, causing it to slide along the guide groove 12 on the inner wall of the flow pipe 4. The guide groove 12 has an arc-shaped structure and cooperates with the guide rod 8 at the bottom of the sliding rod 7, causing the sliding rod 7 to generate a certain rotational motion during the sliding process. The rotational motion of the sliding rod 7 under the action of the guide groove 12 makes the fluid flow more uniform, reduces turbulence, and improves heat exchange efficiency. At the same time, the pressure relief holes 5 on the flow pipe 4 are deflected to one side and have decreasing diameters. The refrigerant is arranged in a manner that gradually reduces pressure as it flows through the pressure relief holes 5 of different diameters, achieving a smooth transition in flow rate. In addition, the flow groove 11 on the moving rod 7 further regulates the flow rate, ensuring uniform refrigerant flow, preventing excessive pressure fluctuations within the system, and improving flow stability. Meanwhile, one end of the buffer spring 10 is fixed to the limiting plate 6, and the other end is connected to the push plate 9, providing a buffering effect when the moving rod 7 is subjected to fluid impact. The buffer spring 10 can effectively absorb the impact energy when the valve opens, reducing valve core wear, improving the system's service life and reliability, preventing the valve core from moving violently due to instantaneous opening, and improving flow stability.

[0027] Those skilled in the art should understand that the discussion of any of the above embodiments is merely exemplary and is not intended to imply that the scope of the present invention (including the claims) is limited to these examples; within the framework of the present invention, the technical features of the above embodiments or different embodiments can also be combined, the steps can be implemented in any order, and there are many other variations of the different aspects of the present invention as described above, which are not provided in the details for the sake of brevity.

[0028] This utility model is intended to cover all such substitutions, modifications, and variations that fall within the broad scope of the appended claims. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. An air conditioning refrigeration spool valve, comprising a refrigeration spool valve (1), characterized in that, The bottom of the refrigeration valve core tube (1) is provided with a liquid inlet (2), the top of the refrigeration valve core tube (1) is provided with a liquid outlet (3), a flow tube (4) is provided inside the liquid outlet (3), a limiting plate (6) is provided at one end of the flow tube (4), and a buffer assembly is sleeved inside the flow tube (4). The buffer assembly is used to buffer the impact of refrigerant in the core tube (1) of the refrigeration valve.

2. The air conditioning refrigeration valve core tube according to claim 1, characterized in that, The buffer assembly includes a movable rod (7) that is slidably sleeved in the flow tube (4), a push plate (9) is slidably provided at one end of the movable rod (7), and a flow groove (11) is provided on the surface of the movable rod (7).

3. The air conditioning refrigeration valve core tube according to claim 2, characterized in that, The surface of the flow tube (4) has multiple sets of pressure relief holes (5), which are arranged to one side with equal spacing between them. The diameter of the pressure relief holes (5) decreases towards the side closer to the limiting plate (6).

4. An air conditioning refrigeration valve core tube according to claim 3, characterized in that, The inner wall of the flow tube (4) is provided with a guide groove (12), which is an arc-shaped curve bent to one side. A set of guide rods (8) is provided on the bottom surface of the moving rod (7), and the guide rods (8) are in contact with the guide groove (12).

5. An air conditioning refrigeration valve core tube according to claim 4, characterized in that, A buffer spring (10) is sleeved on the moving rod (7). One end of the buffer spring (10) is set on the limiting plate (6), and the other end of the buffer spring (10) is set on the push plate (9).

6. An air conditioning refrigeration valve core tube according to claim 5, characterized in that, The cross-section of the moving rod (7) is I-shaped, and the multiple sets of pressure relief holes (5) are in contact with the flow groove (11) respectively.

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