Four-way regulating device and temperature control system using the same

Abstract

The application relates to a four-way regulating device and a temperature control system applying the same, and relates to the technical field of temperature regulating devices, which comprises a valve shell, a rotating shaft, a valve cavity formed in the valve shell, the rotating shaft being rotationally connected to the valve shell and inserted into the valve cavity, four valve holes being arranged on the valve shell and being communicated with the valve cavity, a movable valve plate being fixedly arranged on the rotating shaft, a static valve plate being arranged in the valve cavity of the valve shell, the static valve plate being located between two adjacent valve holes and being in sliding sealing connection with the rotating shaft, the movable valve plate being in sliding sealing connection with the cavity wall of the valve cavity, and the movable valve plate and the static valve plate being capable of separating the valve cavity to form two independent spaces. The application has the effects of reducing the stress of the movable valve plate, reducing the deformation risk caused by fluid pressure under long-term work, and prolonging the service life of the four-way regulating device.

Description

Technical Field

[0001] This application relates to the field of temperature control device technology, and in particular to a four-way regulating device and its application in temperature control systems. Background Technology

[0002] A four-way valve is a key fluid control component that controls the movement of a valve core or valve plate to open or switch the direction of four fluid channels. It is widely used in refrigeration, HVAC, hydraulic systems, chemical equipment, and other fields, and can flexibly manage the flow direction, pressure, or flow rate distribution of fluids.

[0003] Existing four-way valves typically have two valve plates, both fixedly mounted on a rotating shaft and located to the side of the shaft. The included angle between the two valve plates can be set as needed. The rotating shaft drives the valve plates to rotate, thereby controlling the opening and closing of the four fluid channels. In existing technology, both valve plates need to withstand fluid pressure, which can easily lead to deformation under long-term operation, thus reducing the service life of the four-way valve. Utility Model Content

[0004] To improve construction safety during the construction process, this application provides a four-way regulating device and a temperature control system for its application.

[0005] The technical solution of the four-way regulating device and its application temperature control system provided in this application is as follows: A four-way regulating device and its application in a temperature control system include a valve housing and a rotating shaft. A valve cavity is formed inside the valve housing. The rotating shaft is rotatably connected to the valve housing and inserted into the valve cavity. The valve housing has four valve holes communicating with the valve cavity. A movable valve plate is fixedly mounted on the rotating shaft. A stationary valve plate is provided in the valve cavity. The stationary valve plate is located between two adjacent valve holes and is slidably and sealingly connected to the rotating shaft. The movable valve plate is slidably and sealingly connected to the cavity wall of the valve cavity. The movable valve plate and the stationary valve plate can separate the valve cavity into two independent spaces.

[0006] By adopting the above technical solution, the four-way regulating device effectively separates the valve chamber into two independent spaces by setting a moving valve plate and a stationary valve plate inside the valve body, thereby achieving precise control of the fluid channel. The moving valve plate is fixedly connected to the rotating shaft and can rotate with the rotating shaft to change the on / off state of the fluid channel, while the stationary valve plate is slidably and sealingly connected to the rotating shaft. This ensures sealing while reducing the stress on the moving valve plate, reducing the risk of deformation caused by fluid pressure during long-term operation, and improving the service life of the four-way regulating device.

[0007] Preferably, the stationary valve plate has an arc-shaped surface that fits with the rotating shaft.

[0008] By adopting the above technical solution, the arc-shaped surface on the stationary valve plate that fits with the rotating shaft can increase the contact area between the stationary valve plate and the rotating shaft, thereby improving the sealing performance between the two and effectively reducing the risk of fluid leakage.

[0009] Preferably, a limiting groove is formed on the cavity wall of the valve chamber, one of the valve holes is located on the bottom wall of the limiting groove, and the end of the moving valve plate is inserted into the limiting groove and slidably sealed to the bottom wall of the limiting groove.

[0010] By adopting the above technical solution, the setting of the limiting groove can accurately limit the movement trajectory of the moving valve plate, and realize precise control of a single valve hole.

[0011] Preferably, the two end sidewalls of the limiting groove are connected to the bottom wall by root grooves, and the root grooves are recessed into the sidewalls of the limiting groove so that the moving valve plate fits against the sidewalls of the limiting groove.

[0012] By adopting the above technical solution, a root groove is provided between the two end side walls and the bottom wall of the limiting groove, and the root groove is recessed into the side wall of the limiting groove. This effectively avoids the restriction of the sliding of the moving valve plate at the connection between the side wall and the bottom wall of the limiting groove, reduces the gap between the moving valve plate and the limiting groove, and enables the moving valve plate to better fit with the side wall of the limiting groove during the movement, thereby improving the sealing performance.

[0013] Preferably, it further includes a drive unit, which includes a drive motor and a transmission assembly. The output shaft of the drive motor is connected to the rotating shaft through the transmission assembly so as to drive the rotating shaft to rotate.

[0014] By adopting the above technical solution, the combined use of the drive motor and transmission components can precisely control the rotation of the rotating shaft, thereby driving the valve plate to move within the valve cavity and achieving flexible switching of fluid channels between the four valve holes.

[0015] Preferably, an encoder is provided at the end of the rotating shaft.

[0016] By adopting the above technical solution, the encoder can accurately monitor the rotation position and angle of the rotating shaft, thereby achieving precise control of the position of the moving valve plate. At the same time, the feedback information provided by the encoder can support the automatic control of the system, improving the overall operating efficiency and reliability of the four-way regulating device.

[0017] A temperature control system using the aforementioned four-way regulating device includes a heat exchange pipeline and an auxiliary pipeline connected to the equipment to be heat exchanged. The heat exchange pipeline contains a first heat exchange medium, and a medium tank containing a second heat exchange medium is connected in series on the auxiliary pipeline. The temperature of the second heat exchange medium is lower or higher than the temperature of the first heat exchange medium. The four valve holes are designated as a first hole, a second hole, a third hole, and a fourth hole. A movable valve plate is located between the second hole and the third hole. The heat exchange pipeline is connected to the first hole and the fourth hole to form a passage. The auxiliary pipeline is connected to the second hole and the third hole to form a passage. A delivery pump is connected in series on the heat exchange pipeline, so that the first hole forms an inlet and the fourth hole forms an outlet. The movable valve plate can adjust the connection between the first hole and the second hole to allow the second heat exchange medium to enter the heat exchange pipeline and the first heat exchange medium to enter the auxiliary pipeline.

[0018] By adopting the above technical solution, when the replacement of the first heat exchange medium with the second heat exchange medium is not required, the moving valve plate is located between the first and second holes, disconnecting the heat exchange pipeline from the auxiliary pipeline. The delivery pump drives the first heat exchange medium to circulate in the heat exchange pipeline, exchanging heat with the equipment to be heat exchanged. When the second heat exchange medium is required to completely replace the first heat exchange medium, the moving valve plate is rotated to the position between the first and second holes, allowing the first heat exchange medium to enter the medium tank through the third hole. The second heat exchange medium in the medium tank then enters the valve body through the second hole along the auxiliary pipeline and enters the heat exchange pipeline through the first hole, achieving complete replacement of the first heat exchange medium with the second heat exchange medium. This allows for switching according to different heat exchange requirements of the equipment to be heat exchanged, improving the flexibility of the temperature control system in controlling the temperature of the equipment to be heat exchanged. Furthermore, the method of directly replacing the first heat exchange medium with the second heat exchange medium in this temperature control system results in a short response time and improved timeliness of heat exchange.

[0019] Preferably, the end of the moving valve plate is provided with a sealing surface that can slide and seal with the valve housing, and the width of the sealing surface along the circumference of the valve cavity is smaller than the width of the first hole in that direction.

[0020] By adopting the above technical solution, when it is necessary for the second heat exchange medium to partially replace the first heat exchange medium, the movable valve plate is rotated to the position of the first hole, and the flow rate of the second heat exchange medium entering the heat exchange pipeline is adjusted. This allows the flow rate of the second heat exchange medium entering the heat exchange pipeline to be gradually increased, achieving partial replacement of the first heat exchange medium by the second heat exchange medium and improving the flexibility of heat exchange control for the heat exchange equipment. Controlling the flow rate of the second heat exchange medium entering the heat exchange pipeline by the movable valve plate also improves the convenience of controlling the heat exchange effect of the heat exchange equipment.

[0021] Preferably, the diameter of the first hole is the same as the diameter of the fourth hole.

[0022] By adopting the above technical solution, the first hole and the fourth hole have the same diameter, which can ensure that the flow resistance of the fluid in the heat exchange pipeline is balanced, and avoid the problem of uneven fluid flow or pressure imbalance caused by the difference in hole diameter, thereby improving the operational stability and efficiency of the temperature control system.

[0023] Preferably, the medium tank is externally connected to a temperature control system, which can control the cooling or heating of the second heat exchange medium inside the medium tank.

[0024] By adopting the above technical solution, the second heat exchange medium is cooled or heated by the temperature control system, thereby improving the heat exchange effect between the second heat exchange medium and the equipment to be heat exchanged.

[0025] In summary, this application includes at least one of the following beneficial technical effects: 1. By setting a stationary valve plate inside the valve body and slidingly sealing it with the rotating shaft, and slidingly sealing it with the cavity wall of the valve chamber, the fluid pressure borne by a single valve plate can be effectively reduced, thereby reducing the risk of valve plate deformation and significantly improving the service life of the four-way regulating device. 2. A root groove is provided between the two end side walls and the bottom wall of the limiting groove, and the root groove is recessed into the side wall of the limiting groove. This effectively avoids the restriction of the sliding of the moving valve plate at the connection between the side wall and the bottom wall of the limiting groove, reduces the gap between the moving valve plate and the limiting groove, and allows the moving valve plate to better fit with the side wall of the limiting groove during movement, thereby improving the sealing performance. 3. By rotating the valve plate to different positions, three modes of control can be achieved: the first heat exchange medium does not require replacement by the second heat exchange medium, the second heat exchange medium partially replaces the first heat exchange medium, and the second heat exchange medium completely replaces the first heat exchange medium. This allows for the selection of different modes to cool the heat exchange equipment according to its heat exchange needs, thereby improving the flexibility and accuracy of cooling the heat exchange equipment. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the structure of the four-way regulating device according to an embodiment of this application.

[0027] Figure 2 This is a top view used to demonstrate the four-way regulating device.

[0028] Figure 3 It is along Figure 2 A cross-sectional view along line AA in the middle.

[0029] Figure 4 It is a temperature control system that uses a four-way regulating device.

[0030] Figure 5 yes Figure 4 Enlarged view of section B in the middle.

[0031] Explanation of reference numerals in the attached drawings: 1. Four-way regulating device; 11. Valve housing; 111. Limiting groove; 112. Root groove; 12. Rotating shaft; 13. Drive unit; 131. Drive motor; 132. Transmission assembly; 1321. First bevel gear; 1322. Second bevel gear; 14. Valve cavity; 15. Cover plate; 16. Valve hole; 161. First hole; 162. Second hole; 163. Third hole; 164. Fourth hole; 17. Moving valve plate; 18. Stationary valve plate; 181. Arc-shaped surface; 19. Encoder; 2. Heat exchange pipeline; 3. Auxiliary pipeline; 4. Medium tank; 5. Transfer pump; 6. Temperature control system; 7. Sealing surface; 8. Equipment to be exchanged; 9. Temperature regulator. Detailed Implementation

[0032] The following is in conjunction with the appendix Figure 1-5 This application will be described in further detail.

[0033] This application discloses a four-way regulating device.

[0034] Reference Figure 1 , Figure 2 and Figure 3 A four-way regulating device includes a valve housing 11, a rotating shaft 12, and a drive unit 13. A circular valve cavity 14 is formed within the valve housing 11. Both ends of the valve housing 11 are provided with cover plates 15, which are detachably connected to the valve housing 11 only by screws. The two cover plates 15 seal the openings at both ends of the valve cavity 14. The rotating shaft 12 is inserted into the valve cavity 14 and passes through the two cover plates 15. The rotating shaft 12 and the cover plates 15 are rotatably connected by bearings, and the axis of the rotating shaft 12 is collinear with the axis of the valve cavity 14.

[0035] Reference Figure 2 , Figure 3 The valve housing 11 has four valve holes 16 communicating with the valve cavity 14. The four valve holes 16 are designated as first hole 161, second hole 162, third hole 163, and fourth hole 164. The four valve holes 16 have the same diameter and are arranged in pairs opposite each other along the circumference of the valve cavity 14. A movable valve plate 17 is fixedly mounted on the rotating shaft 12. The movable valve plate 17 is a rectangular plate. Both sides of the movable valve plate 17 slide against the cover plate 15 to achieve a sliding seal connection between the movable valve plate 17 and the cover plate 15. The end of the movable valve plate 17 slides against the peripheral wall of the valve cavity 14 to achieve a sliding seal connection between the movable valve plate 17 and the valve housing 11. The valve housing 11 has a stationary valve plate 18 inside the valve cavity 14. The stationary valve plate 18 is integrally formed with the valve housing 11. The stationary valve plate 18 is located between the second hole 162 and the third hole 163 and is slidably sealed to the rotating shaft 12. The moving valve plate 17 and the stationary valve plate 18 separate the valve cavity 14 into two independent spaces.

[0036] The four-way regulating device 1, by setting a moving valve plate 17 and a stationary valve plate 18 inside the valve housing 11, can effectively separate the valve chamber 14 into two independent spaces. By rotating the moving valve plate 17 to different positions of the valve holes 16, the on / off control between the valve holes 16 can be achieved, thereby realizing precise control of the fluid channel. The moving valve plate 17 is fixedly connected to the rotating shaft 12 and can rotate with the rotating shaft 12 to change the on / off state of the fluid channel, while the stationary valve plate 18 is slidably sealed to the rotating shaft 12, which can reduce the stress on the moving valve plate 17 while ensuring sealing, reduce the risk of deformation caused by fluid pressure during long-term operation, and improve the service life of the four-way regulating device.

[0037] Reference Figure 2 , Figure 3 The stationary valve plate 18 has an arc-shaped surface 181 on the side facing the rotating shaft 12. The arc-shaped surface 181 slides in contact with the rotating shaft 12, realizing a sliding sealing connection between the stationary valve plate 18 and the rotating shaft 12. The arc-shaped surface 181 can increase the contact area between the stationary valve plate 18 and the rotating shaft 12, thereby improving the sealing performance between the two and effectively reducing the risk of fluid leakage.

[0038] Reference Figure 2 , Figure 3 The drive unit 13 includes a drive motor 131 and a transmission assembly 132. In this embodiment, the drive motor 131 is a servo motor. The drive motor 131 is fixedly connected to the valve housing 11, and the axis of the output shaft of the drive motor 131 is perpendicular to the axis of the rotating shaft 12. Therefore, the transmission assembly 132 in this embodiment includes a first bevel gear 1321 and a second bevel gear 1322. The first bevel gear 1321 is coaxially fixed on the output shaft of the drive motor 131, and the second bevel gear 1322 is coaxially fixed on the rotating shaft 12. The first bevel gear 1321 and the second bevel gear 1322 mesh, so that the drive motor 131 drives the rotating shaft 12 to rotate. The cooperation between the drive motor 131 and the bevel gear assembly can precisely control the rotation of the rotating shaft 12, thereby driving the valve plate 17 to move in the valve cavity 14, realizing flexible switching of the fluid channels between the four valve holes 16.

[0039] Reference Figure 2 An encoder 19 is provided at the end of the rotating shaft 12. Specifically, the code disk on the encoder 19 is fixedly mounted on the rotating shaft 12. When the rotating shaft 12 rotates, it drives the code disk to rotate. The grating / magnetic poles periodically block or expose the sensor. The sensor outputs two sets of square wave signals (phase A and phase B) with a 90° phase difference, which are used to determine the direction and count. The encoder 19 can accurately monitor the rotation position and angle of the rotating shaft 12, thereby achieving precise control of the position of the moving valve plate 17. At the same time, the feedback information provided by the encoder 19 can support the automatic control of the system, improving the overall operating efficiency and reliability of the four-way regulating device.

[0040] Reference Figure 2 , Figure 3 A limiting groove 111 is formed on the wall of the valve cavity 14. The limiting groove 111 is located at the first hole 161, so that the first hole 161 is located on the bottom wall of the limiting groove 111. The limiting groove 111 is arranged circumferentially along the valve cavity 14, and the width of the limiting groove 111 circumferentially along the valve cavity 14 is greater than the width of the first hole 161 in that direction. The width of the limiting groove 111 axially along the valve cavity 14 is equal to the width of the moving valve plate 17, so that the end of the moving valve plate 17 is inserted into the limiting groove 111 and slides against the bottom wall of the limiting groove 111, realizing a sliding sealing connection between the moving valve plate 17 and the bottom wall of the limiting groove 111. The setting of the limiting groove 111 allows the moving valve plate 17 to precisely limit the movement trajectory of the moving valve plate 17 when controlling the first hole 161, realizing precise control of the first hole 161.

[0041] Reference Figure 2 , Figure 3 During the machining of the limiting groove 111, the connection between the bottom wall and the two side walls of the limiting groove 111 is made with an arc transition, making it difficult for the moving valve plate 17 to fit tightly against the side wall of the limiting groove 111. To address this, a root groove 112 is provided at the connection between the bottom wall and the side wall of the limiting groove 111, so that both ends of the side wall and the bottom wall of the limiting groove 111 are connected by the root groove 112. The root groove 112 is recessed into the side wall of the limiting groove 111, providing an insertion space for the moving valve plate 17. This effectively avoids the restriction on the sliding of the moving valve plate 17 at the connection between the side wall and the bottom wall of the limiting groove 111, reduces the gap between the moving valve plate 17 and the limiting groove 111, and allows the moving valve plate 17 to fit better against the side wall of the limiting groove 111 during movement, thereby improving the sealing performance.

[0042] The implementation principle of the four-way regulating device in this application embodiment is as follows: By setting a moving valve plate 17 and a stationary valve plate 18 inside the valve housing 11, the valve chamber 14 can be effectively separated into two independent spaces. By rotating the moving valve plate 17 to different valve hole 16 positions, the mutual opening and closing of the valve holes 16 can be controlled, thereby achieving precise control of the fluid channel. The moving valve plate 17 is fixedly connected to the rotating shaft 12 and can rotate with the rotating shaft 12 to change the opening and closing state of the fluid channel, while the stationary valve plate 18 is slidably sealed to the rotating shaft 12, which can reduce the force on the moving valve plate 17 while ensuring sealing, reduce the risk of deformation caused by fluid pressure under long-term operation, and improve the service life of the four-way regulating device 1.

[0043] This application discloses a temperature control system.

[0044] Example 1 Reference Figure 4 , Figure 5A temperature control system includes the aforementioned four-way regulating device 1, a heat exchange pipeline 2 connected to the heat exchange device 8, and an auxiliary pipeline 3. In this embodiment, the heat exchange device 8 is a gas flow pipeline. When the flow meter detects the gas flow rate in the gas pipeline, the gas in the pipeline needs to be cooled. In this embodiment, the heat exchange pipeline 2 is wound around the gas flow pipeline to cool the gas in the gas flow pipeline. The heat exchange pipeline 2 contains a first heat exchange medium. A medium tank 4 containing a second heat exchange medium is connected in series on the auxiliary pipeline 3. Since the gas is being cooled, both the first and second heat exchange media are the same cooling medium. In this embodiment, both the first and second heat exchange media are cooling water, and the temperature of the second heat exchange medium is lower than the temperature of the first heat exchange medium.

[0045] Reference Figure 4 , Figure 5 A transfer pump 5 is connected in series on the heat exchange pipeline 2. In this embodiment, the transfer pump 5 is a fluid pump. The transfer pump 5 provides power for the flow of the first heat exchange medium in the heat exchange pipeline 2. The heat exchange pipeline 2 is connected to the fourth hole 164 and the first hole 161, with the first hole 161 being the inlet and the fourth hole 164 being the outlet. This allows the first heat exchange medium to flow into the four-way regulating device 1 through the fourth hole 164 and then into the heat exchange pipeline 2 along the first hole 161. The auxiliary pipeline 3 is connected to the second hole 162 and the third hole 163. In this embodiment, the medium tank 4 is a rigid container, and the second heat exchange medium fills the medium tank 4. The medium tank 4 is externally connected to a temperature regulating system 6. In this embodiment, the temperature regulating system 6 is a refrigeration system. The temperature regulating system 6 cools the cooling water in the medium tank 4 to ensure stable cooling of the heat exchange equipment 8. A temperature regulator 9 is connected in series downstream of the heat exchanger 8 in heat exchange pipeline 2. In this embodiment, the temperature regulator 9 is an electric heater. The electric heater heats the first and second heat exchange media after heat exchange to a specified temperature to prevent the heat exchanger 8 from becoming too cold and to ensure stable heat exchange. Flow meters and on / off valves are correspondingly installed on the heat exchange pipeline 2 and the auxiliary pipeline 3 to control the on / off state of the pipeline and measure the flow rate.

[0046] Reference Figure 4 , Figure 5 The end of the moving valve plate 17 inserted into the limiting groove 111 is provided with a sealing surface 7 that can slide and seal with the valve shell 11. The width of the sealing surface 7 along the circumference of the valve cavity 14 is much smaller than the width of the first hole 161 in that direction, so that the moving valve plate 17 divides the first hole 161 into a heat exchange range and an auxiliary range. The heat exchange range is connected to the fourth hole 164, so that the first heat exchange medium circulates in the heat exchange pipeline 2. The auxiliary range is connected to the second hole 162, so that the second heat exchange medium enters the heat exchange pipeline 2. The area of ​​the heat exchange range is S1, and the area of ​​the auxiliary range is S2. In this embodiment, S1:S2 can reach 1:1000. Similarly, S2:S1 can also reach 1:1000.

[0047] When the first heat exchange medium in the heat exchange pipeline 2 is sufficient to cool the heat exchange equipment 8 and there is no need to replace it with the second heat exchange medium, rotate the valve plate 17 to the position between the first hole 161 and the second hole 162 and abut against the side wall of the limiting groove 111. At this time, start the delivery pump 5. Since the medium tank 4 is an incompressible rigid container and the second heat exchange medium fills the medium tank 4, the delivery pump 5 delivers the first heat exchange medium stored in the heat exchange pipeline 2 to the heat exchange equipment 8 to exchange heat with it. After heat exchange, the first heat exchange medium flows back to the valve chamber 14 through the fourth hole 164 along the heat exchange pipeline 2. The first heat exchange medium in the valve chamber 14 then enters the heat exchange pipeline 2 through the first hole 161 and is sent to the heat exchange equipment 8 to exchange heat. This process is repeated to achieve continuous heat exchange and cooling between the first heat exchange medium and the heat exchange equipment 8.

[0048] When the first heat exchange medium in heat exchange pipeline 2 is insufficient to cool the heat exchange equipment 8, and it is necessary to partially replace the first heat exchange medium with the second heat exchange medium, the moving valve plate 17 is rotated onto the first hole 161. At this time, the moving valve plate 17 divides the opening of the first hole 161 into a heat exchange range and an auxiliary range. The first heat exchange medium in the valve chamber 14 enters the medium tank 4 through the third hole 163. The delivery pump 5 draws the second heat exchange medium from the medium tank 4 into the chamber through the second hole 162 along the auxiliary pipeline 3, and then enters the heat exchange pipeline 2 through the auxiliary range. The first heat exchange medium and the second heat exchange medium entering the heat exchange pipeline 2 mix to cool the heat exchange equipment 8, further improving the heat exchange effect of the heat exchange equipment 8. As the moving valve plate 17 rotates towards the fourth hole 164, the area of ​​the heat exchange range gradually decreases, and the auxiliary area gradually increases, thereby enabling the ratio of the first heat exchange medium to the second heat exchange medium in the heat exchange pipeline 2 to change slowly, avoiding a sudden increase in the proportion of the second heat exchange medium, which could cause the heat exchange equipment 8 to become overcooled. The ratio of S1 to S2 is controlled by the moving valve plate 17, thereby controlling the proportion of the second heat exchange medium entering the heat exchange pipeline 2, which improves the convenience of controlling the heat exchange effect of the heat exchange equipment 8.

[0049] When the first heat exchange medium in the heat exchange pipeline 2 is insufficient to cool the heat exchange equipment 8, and the first heat exchange medium needs to be completely replaced by the second heat exchange medium, the moving valve plate 17 is rotated to the side of the limiting groove 111 near the fourth hole 164 and fits against the side wall of the limiting groove 111. The first heat exchange medium in the heat exchange pipeline 2 flows into the medium tank 4 along the third hole 163. The second heat exchange medium in the medium tank 4 enters the heat exchange pipeline 2 through the auxiliary pipeline 3 to completely replace the first heat exchange medium and increase the cooling effect on the heat exchange equipment 8.

[0050] The mixing ratio is infinitely adjustable via the mechanical structure of the moving valve plate 17, allowing for smooth switching between the two media according to heat exchange requirements. The rotation angle of the moving valve plate 17 directly controls the flow cross-sectional area ratio (S1 / S2) of the two media, avoiding the risk of overcooling caused by sudden changes in the proportion of the second heat exchange medium, while also enabling continuous adjustment of the heat exchange intensity with fast response and high control precision. When enhanced cooling is required, the mixing of the heat exchange medium is used for transition rather than direct cooling. The mixing process between the second and first heat exchange media forms a temperature gradient buffer, which, compared to the cooler directly forcing cooling of the first heat exchange medium, effectively avoids severe temperature shocks to the equipment 8 being exchanged, extending the equipment's lifespan.

[0051] When the first heat exchange medium is sufficient to meet the cooling requirements, the system only needs to maintain the energy consumption of the medium transfer pump 5. When enhanced cooling is required, the heat exchange medium is replaced instead of additional refrigeration, avoiding the energy loss caused by the continuous operation of the cooler. Especially in scenarios with high heat dissipation requirements, directly replacing the second heat exchange medium with high heat exchange efficiency is more energy-efficient than secondary heat exchange through a cooler. The integrated valve chamber 14 structure formed by the four-way regulating device 1 integrates the medium switching function into the piping system, which saves more installation space compared to the external cooler solution, and is particularly suitable for the layout of industrial equipment with limited space.

[0052] The implementation principle of this embodiment is as follows: by rotating the valve plate 17 to different positions, three modes of control can be achieved: the first heat exchange medium does not require replacement by the second heat exchange medium; the second heat exchange medium partially replaces the first heat exchange medium; and the second heat exchange medium completely replaces the first heat exchange medium. This allows for the selection of different modes to cool the heat exchange equipment 8 according to its heat exchange needs, improving the flexibility and accuracy of cooling the equipment. Simultaneously, this temperature control system only requires a delivery pump 5 on the heat exchange pipeline 2, reducing the pump requirements in the temperature control system and minimizing equipment investment.

[0053] Example 2 The difference between this embodiment and embodiment 1 is that the heat exchange device 8 in this embodiment is a device that needs to be heated. The first heat exchange medium and the second heat exchange medium are both hot water with a temperature higher than that of the heat exchange device 8, which needs to be heated to a specified temperature. The temperature of the second heat exchange medium is higher than that of the first heat exchange medium. The temperature regulation system 6 in this embodiment is a heating system that heats the second heat exchange medium after heat exchange. The temperature regulator 9 in this embodiment is a cooler that cools the first heat exchange medium and the second heat exchange medium to a specified temperature to prevent the heat exchange device 8 from overheating.

[0054] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A four-way regulating device, characterized in that: The device includes a valve housing (11) and a rotating shaft (12). A valve cavity (14) is formed inside the valve housing (11). The rotating shaft (12) is rotatably connected to the valve housing (11) and inserted into the valve cavity (14). The valve housing (11) is provided with four valve holes (16) communicating with the valve cavity (14). A moving valve plate (17) is fixedly provided on the rotating shaft (12). A stationary valve plate (18) is provided in the valve cavity (14) of the valve housing (11). The stationary valve plate (18) is located between two adjacent valve holes (16) and is slidably and sealingly connected to the rotating shaft (12). The moving valve plate (17) is slidably and sealingly connected to the cavity wall of the valve cavity (14). The moving valve plate (17) and the stationary valve plate (18) can separate the valve cavity (14) into two independent spaces.

2. The four-way regulating device according to claim 1, characterized in that: The stationary valve plate (18) is provided with an arc-shaped surface (181) that fits against the rotating shaft (12).

3. The four-way regulating device according to claim 1, characterized in that: A limiting groove (111) is provided on the cavity wall of the valve cavity (14), and one of the valve holes (16) is located on the bottom wall of the limiting groove (111). The end of the moving valve plate (17) is inserted into the limiting groove (111) and is slidably sealed to the bottom wall of the limiting groove (111).

4. The four-way regulating device according to claim 3, characterized in that: The two end sidewalls of the limiting groove (111) are connected to the bottom wall by root grooves (112), and the root grooves (112) are recessed into the sidewalls of the limiting groove (111) so that the moving valve plate (17) can fit against the sidewalls of the limiting groove (111).

5. The four-way regulating device according to claim 1, characterized in that: It also includes a drive unit (13), which includes a drive motor (131) and a transmission assembly (132). The output shaft of the drive motor (131) is connected to the rotating shaft (12) through the transmission assembly (132) so as to drive the rotating shaft (12) to rotate.

6. The four-way regulating device according to claim 1, characterized in that: An encoder (19) is provided at the end of the rotating shaft (12).

7. A temperature control system using the four-way regulating device according to any one of claims 1-6, characterized in that: It includes a heat exchange pipeline (2) connected to the heat exchange equipment (8) and an auxiliary pipeline (3). The heat exchange pipeline (2) contains a first heat exchange medium, and the auxiliary pipeline (3) is connected in series with a medium tank (4) containing a second heat exchange medium. The temperature of the second heat exchange medium is lower or higher than the temperature of the first heat exchange medium. The four valve holes (16) are respectively the first hole (161), the second hole (162), the third hole (163), and the fourth hole (164). The moving valve plate (17) is located between the second hole (162) and the third hole (163). The heat exchange pipeline (2) is connected to the first hole (161) and the fourth hole (164) to form a passage. The auxiliary pipeline (3) is connected to the second hole (162) and the third hole (163) to form a passage. A delivery pump (5) is connected in series on the heat exchange pipeline (2) so that the first hole (161) forms an inlet and the fourth hole (164) forms an outlet. The moving valve plate (17) can adjust the connection between the first hole (161) and the second hole (162) so that the second heat exchange medium enters the heat exchange pipeline (2) and the first heat exchange medium enters the auxiliary pipeline (3).

8. The temperature control system according to claim 7, characterized in that: The end of the moving valve plate (17) is provided with a sealing surface (7) that can slide and seal with the valve housing (11). The width of the sealing surface (7) along the circumference of the valve cavity (14) is smaller than the width of the first hole (161) in that direction.

9. The temperature control system according to claim 7, characterized in that: The diameter of the first hole (161) is the same as the diameter of the fourth hole (164).

10. The temperature control system according to claim 7, characterized in that: The medium tank (4) is connected to an external temperature control system (6), which can control the cooling or heating of the second heat exchange medium inside the medium tank (4).

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