Four-way temperature control valve and cooling system

Abstract

The present application relates to the technical field of valve, especially to a four-way temperature control valve and a cooling system. The four-way temperature control valve comprises a valve body, an upper end cover, a valve core, a valve rod and a baffle. The valve body is provided with two oppositely arranged first water inlets and second water inlets and two oppositely arranged first water outlets and second water outlets to form a cross-shaped water passing structure. The upper end cover comprises a cover plate and a partition. The partition is inserted into the valve body and is in sealing cooperation. The valve core is rotatably assembled in the valve cavity to realize the opening and closing of the water passage between the first water inlet and the second water outlet. The valve rod is fixed relative to the valve core. The baffle is located between the valve core and the partition and is rotatably assembled on the valve rod. The baffle can rotate under the impact of water flow to realize the opening and closing of the water passage between the second water inlet and the second water outlet. The cooling system adopts the four-way temperature control valve. The present application not only guarantees the basic requirements of temperature control valve temperature control, but also meets the stepless adjustment effect of four-way temperature control valve.

Description

Technical Field

[0001] This invention relates to the field of valve technology, and in particular to a four-way temperature control valve and cooling system. Background Technology

[0002] The main function of the plant's cooling water system is to dissipate the heat generated in the plant through a central cooler. The temperature control valve controls the proportion of cooling medium flowing to the central cooler's cooling pipes (which participate in cooling) and the bypass pipes (which do not participate in cooling). When the medium temperature is high, the proportion of medium flowing to the central cooler's cooling pipes increases, enhancing the cooling effect; conversely, when the medium temperature is low, the proportion of medium flowing to the bypass pipes (which do not participate in cooling) increases, reducing the cooling effect, thus ensuring a constant and stable medium temperature in the cooling system.

[0003] Existing three-way temperature control valves present some difficulties in implementing certain functions during the design of factory cooling water systems, often requiring the use of bypass piping. For example... Figure 1 The diagram shows a cooling system using a three-way thermostatic valve. The valve has one inlet and two outlets. High-temperature media flows from the system's incoming water pipe through the valve's inlet and one of its outlets into the cooling water inlet pipe, where it is cooled in the cooler. Media flowing out of the cooling water outlet pipe returns to the cooling water tank via the system's return pipe for recycling. The other outlet of the three-way thermostatic valve is connected to a bypass pipe, but this pipe is not connected to any other equipment in the system. When the three-way valve is switched to its extreme position, the bypass pipe is prone to empty pipe, vacuum, or stagnant water not participating in circulation. These phenomena affect the accuracy of temperature control, the lifespan of the piping and valve body, the purity of the circulating media in the piping, and chemical oxidation and corrosion of the piping, significantly increasing operating costs.

[0004] If the three-way valve in the cooling system is replaced with a four-way valve, the drawbacks of the bypass pipeline can be solved. However, most existing four-way valves are four-way ball valves, two-position four-way valves, three-position four-way valves, etc. These four-way valves can only change the liquid flow direction when the valve core is fully open or fully closed. When the ball valve or slide valve is in a half-open state, the flow direction changing function fails, which can easily lead to water trapping (the liquid medium is isolated in a closed space) or liquid communication, resulting in the failure of temperature control. Summary of the Invention

[0005] Therefore, the purpose of this invention is to provide a four-way temperature control valve to solve the technical problem that the temperature control function of the existing three-way temperature control valve is prone to failure; the purpose of this invention is also to provide a cooling system to stabilize the temperature of the medium and ensure the normal and stable operation of the equipment.

[0006] To solve the above problems, the four-way temperature control valve provided by this invention adopts the following technical solution:

[0007] Four-way temperature control valve, including:

[0008] The valve body has a valve cavity and two oppositely arranged first and second water inlets and two oppositely arranged first and second water outlets to form a cross-shaped water passage structure. The first water inlet is used to connect to the system water supply pipe, the second water inlet is used to connect to the cooler water outlet pipe, the first water outlet is used to connect to the cooler water inlet pipe, and the second water outlet is used to connect to the system return water pipe.

[0009] The upper cover includes a cover plate and a partition connected to the bottom of the cover plate. The cover plate is used to seal the valve cavity, and the partition is inserted into and sealed with the valve body.

[0010] The valve core is rotatably assembled in the valve cavity to realize the opening and closing of the water passage between the first inlet and the first outlet, and between the first inlet and the second outlet;

[0011] The valve stem is fixed relative to the valve core to drive the valve core to rotate;

[0012] The baffle, located between the valve core and the partition, is rotatably mounted on the valve stem. The baffle can rotate under the impact of the water flow to open or close the water passage between the second inlet and the second outlet.

[0013] Furthermore, the valve body includes a hollow spherical shell and four identical circular tubes connected to the circumference of the spherical shell. The four circular tubes penetrate the spherical shell from four directions to form the first inlet, second inlet, first outlet, and second outlet, respectively. The outer walls of any two adjacent circular tubes are tangent to each other, and the outer walls of each circular tube are tangent to the top and bottom surfaces of the spherical shell. The upper surface of the cover plate is flush with the top surface of the spherical shell. The portion of the spherical shell between two of the circular tubes is provided with a socket for insertion into the partition, extending from the top surface of the spherical shell to the bottom wall of the inner shell. Both the valve core and the baffle have sealing arc surfaces that are in sealing contact with the inner shell sidewall of the spherical shell.

[0014] Furthermore, the valve core includes a valve plate and a mating pipe and a through pipe fixed to the end of the valve plate and arranged vertically at intervals. The baffle includes a plate body and an installation pipe. The valve stem includes a mating rod segment, a handle rod segment, and a snap-fit ​​part. The valve plate and the plate body have the same dimensions, and both the valve plate and the plate body are provided with the sealing arc surface. The distance between the mating pipe and the through pipe is equal to the length of the installation pipe. The mating rod segment passes through the mating pipe, the installation pipe, and the through pipe in sequence on the same axis, and the snap-fit ​​part snaps into the mating pipe to fix the valve stem and the valve core relative to each other.

[0015] Furthermore, the pipe wall of the mating pipe is provided with two U-shaped bayonets arranged opposite each other. The U-shaped bayonets extend along the axial direction of the mating pipe to the upper end face of the mating pipe. The snap-fit ​​part includes two rectangular snap blocks and an arc-shaped snap block connected between the two rectangular snap blocks. The two rectangular snap blocks are respectively connected to the radial sides of the mating rod segment and respectively snap into the corresponding U-shaped bayonets. The arc-shaped snap block, together with the two rectangular snap blocks and the mating rod segment, forms an arc-shaped snap hole. The arc-shaped snap hole is used to snap into the part of the mating pipe located between the two U-shaped bayonets.

[0016] Furthermore, the length of the rectangular block in the axial direction of the mating tube is the same as the depth of the U-shaped bayonet in the axial direction of the mating tube, and the lower surface of the arc-shaped block fits against the cover plate.

[0017] Furthermore, the arc-shaped locking block is a semi-circular block, with two U-shaped locking slots respectively located on the radial sides of the mating tube.

[0018] Furthermore, the partition has a step for placement, the step has a step plane and a step vertical surface, the step vertical surface extends to the upper surface of the partition, the lower surface of the cover plate is fitted and connected to the step plane, the outer peripheral surface of the cover plate is fitted and connected to the step vertical surface, and the upper surface of the cover plate is flush with the upper surface of the partition; the side of the partition near the mating rod section is an arc-shaped concave surface adapted to the shape of the mounting tube and the through tube.

[0019] Furthermore, the upper surface of the cover plate is provided with a limiting block for limiting the rotation angle of the valve core, and the lower surface of the cover plate is provided with a limiting groove for limiting the rotation angle of the baffle. The two end faces of the limiting block are perpendicular to each other, and the limiting groove has two limiting walls that are perpendicular to each other. The upper surface of the plate body is provided with a stop block that extends into the limiting groove.

[0020] Furthermore, the limiting block is a sector-shaped block, the limiting groove is a sector-shaped annular groove, and the central angles corresponding to the limiting block and the limiting groove are both 90°.

[0021] The beneficial effects of the four-way temperature control valve are as follows: By rotating the valve stem, the valve core can be opened at different angles. Under the impact of water flow, the baffle can be opened at different angles, thereby adjusting the ratio of heat source water entering the cooler inlet pipe and the system return pipe, achieving the function of temperature control. In addition, when the valve core is fully open, it can block the water path between the first inlet and the second outlet, and the first outlet and the second inlet are blocked by the baffle, so that the heat source water can only enter the cooler through the first inlet and the cooler inlet pipe, and finally enter the system return pipe. When the valve core is fully closed, the water path between the first inlet and the second outlet is connected, and the baffle blocks the water path between the second outlet and the second inlet, so that the heat source water can only enter the system return pipe through the first inlet and the second outlet. Compared with existing common three-way thermostatic valves and four-way valves, this invention can achieve absolute isolation between the return water section (bypass section) and the cooling section when the opening and closing degree reaches the limit position, and there will be no phenomenon of water trapping and liquid communication. The addition of baffles and partitions in the valve body satisfies the sealing while not hindering the flow of liquid medium in the pipeline. This ensures both the basic requirements of temperature control of the thermostatic valve and the stepless adjustment effect of the four-way thermostatic valve.

[0022] The technical solution of the cooling system provided by this invention is as follows:

[0023] The cooling system includes a heat source, a four-way thermostatic valve, a cooler, and a cooling water tank. The four-way thermostatic valve includes:

[0024] The valve body has a valve cavity and two oppositely arranged first and second water inlets, as well as two oppositely arranged first and second water outlets, forming a cross-shaped water passage structure. The first water inlet is connected to the heat source through a system water supply pipe, the second water inlet is connected to the cooler through a cooler outlet pipe, the first water outlet is connected to the cooler through a cooler inlet pipe, and the second water outlet is connected to the heat source through a system return water pipe. The cooling water tank is connected to the system return water pipe through a water supply pipe.

[0025] The upper cover includes a cover plate and a partition connected to the bottom of the cover plate. The cover plate is used to seal the valve cavity, and the partition is inserted into and sealed with the valve body.

[0026] The valve core is rotatably assembled in the valve cavity to realize the opening and closing of the water passage between the first inlet and the first outlet, and between the first inlet and the second outlet;

[0027] The valve stem is fixed relative to the valve core to drive the valve core to rotate;

[0028] The baffle, located between the valve core and the partition, is rotatably mounted on the valve stem. The baffle can rotate under the impact of the water flow to open or close the water passage between the second inlet and the second outlet.

[0029] Furthermore, the valve body includes a hollow spherical shell and four identical circular tubes connected to the circumference of the spherical shell. The four circular tubes penetrate the spherical shell from four directions to form the first inlet, second inlet, first outlet, and second outlet, respectively. The outer walls of any two adjacent circular tubes are tangent to each other, and the outer walls of each circular tube are tangent to the top and bottom surfaces of the spherical shell. The upper surface of the cover plate is flush with the top surface of the spherical shell. The portion of the spherical shell between two of the circular tubes is provided with a socket for insertion into the partition, extending from the top surface of the spherical shell to the bottom wall of the inner shell. Both the valve core and the baffle have sealing arc surfaces that are in sealing contact with the inner shell sidewall of the spherical shell.

[0030] Furthermore, the valve core includes a valve plate and a mating pipe and a through pipe fixed to the end of the valve plate and arranged vertically at intervals. The baffle includes a plate body and an installation pipe. The valve stem includes a mating rod segment, a handle rod segment, and a snap-fit ​​part. The valve plate and the plate body have the same dimensions, and both the valve plate and the plate body are provided with the sealing arc surface. The distance between the mating pipe and the through pipe is equal to the length of the installation pipe. The mating rod segment passes through the mating pipe, the installation pipe, and the through pipe in sequence on the same axis, and the snap-fit ​​part snaps into the mating pipe to fix the valve stem and the valve core relative to each other.

[0031] Furthermore, the pipe wall of the mating pipe is provided with two U-shaped bayonets arranged opposite each other. The U-shaped bayonets extend along the axial direction of the mating pipe to the upper end face of the mating pipe. The snap-fit ​​part includes two rectangular snap blocks and an arc-shaped snap block connected between the two rectangular snap blocks. The two rectangular snap blocks are respectively connected to the radial sides of the mating rod segment and respectively snap into the corresponding U-shaped bayonets. The arc-shaped snap block, together with the two rectangular snap blocks and the mating rod segment, forms an arc-shaped snap hole. The arc-shaped snap hole is used to snap into the part of the mating pipe located between the two U-shaped bayonets.

[0032] Furthermore, the length of the rectangular block in the axial direction of the mating tube is the same as the depth of the U-shaped bayonet in the axial direction of the mating tube, and the lower surface of the arc-shaped block fits against the cover plate.

[0033] Furthermore, the arc-shaped locking block is a semi-circular block, with two U-shaped locking slots respectively located on the radial sides of the mating tube.

[0034] Furthermore, the partition has a step for placement, the step has a step plane and a step vertical surface, the step vertical surface extends to the upper surface of the partition, the lower surface of the cover plate is fitted and connected to the step plane, the outer peripheral surface of the cover plate is fitted and connected to the step vertical surface, and the upper surface of the cover plate is flush with the upper surface of the partition; the side of the partition near the mating rod section is an arc-shaped concave surface adapted to the shape of the mounting tube and the through tube.

[0035] Furthermore, the upper surface of the cover plate is provided with a limiting block for limiting the rotation angle of the valve core, and the lower surface of the cover plate is provided with a limiting groove for limiting the rotation angle of the baffle. The two end faces of the limiting block are perpendicular to each other, and the limiting groove has two limiting walls that are perpendicular to each other. The upper surface of the plate body is provided with a stop block that extends into the limiting groove.

[0036] Furthermore, the limiting block is a sector-shaped block, the limiting groove is a sector-shaped annular groove, and the central angles corresponding to the limiting block and the limiting groove are both 90°.

[0037] The beneficial effects of the cooling system are as follows: This invention sets up a four-way thermostatic valve with two inlets and two outlets in the cooling system. When the four-way thermostatic valve reaches its limit position, the return water section (bypass section) and the cooling section can be absolutely isolated, and there will be no water trapping or liquid communication. By setting baffles and partitions in the four-way thermostatic valve, the sealing is satisfied without hindering the flow of liquid medium in the pipeline. This ensures both the basic requirements of temperature control of the thermostatic valve and the stepless adjustment effect of the four-way thermostatic valve, so that the heat source of the cooling system can operate safely and stably under the timely cooling of the medium. Attached Figure Description

[0038] The above and other objects, features, and advantages of exemplary embodiments of the present invention will become readily apparent upon reading the following detailed description with reference to the accompanying drawings. In the drawings, several embodiments of the invention are illustrated by way of example and not limitation, and like or corresponding reference numerals denote like or corresponding parts, wherein:

[0039] Figure 1 This is a schematic diagram of a cooling system using a three-way temperature control valve in the prior art.

[0040] Figure 2 This is a schematic diagram of the overall structure of the four-way temperature control valve of the present invention;

[0041] Figure 3 for Figure 2 Top view;

[0042] Figure 4 A schematic diagram of the valve body in the four-way temperature control valve of the present invention;

[0043] Figure 5 This is a schematic diagram of the valve core structure in the four-way temperature control valve of the present invention;

[0044] Figure 6 This is a schematic diagram of the baffle in the four-way temperature control valve of the present invention;

[0045] Figure 7 This is a schematic diagram of the valve stem structure in the four-way temperature control valve of the present invention;

[0046] Figure 8 This is a schematic diagram of the upper end cap of the four-way temperature control valve of the present invention from one perspective;

[0047] Figure 9 This is a schematic diagram of the upper end cap of the four-way temperature control valve of the present invention from another perspective;

[0048] Figure 10 This is a schematic diagram showing the relative positions of the valve core, baffle, and partition, as well as the water flow path, when the four-way temperature control valve of the present invention is in the fully open state (the baffle is not activated).

[0049] Figure 11 This is a schematic diagram showing the relative positions of the valve core, baffle, and partition, as well as the water flow path, when the four-way temperature control valve of the present invention is in the fully open state (the baffle has been activated).

[0050] Figure 12 This is a schematic diagram showing the relative positions of the valve core, baffle, and partition, as well as the water flow path, when the four-way temperature control valve of the present invention is in a half-open state.

[0051] Figure 13 This is a schematic diagram showing the relative positions of the valve core, baffle, and partition, as well as the water flow path, when the four-way temperature control valve of the present invention is in the fully closed state (the baffle is not activated).

[0052] Figure 14 This is a schematic diagram showing the relative positions of the valve core, baffle, and partition, as well as the water flow path, when the four-way temperature control valve of the present invention is in the fully closed state (the baffle has been activated).

[0053] Figure 15 This is a schematic diagram of the cooling system in which the four-way temperature control valve of the present invention is applied.

[0054] Explanation of reference numerals in the attached figures:

[0055] 1. Valve body; 2. Upper end cover; 3. Valve core; 4. Valve stem; 5. Baffle; 6. First inlet; 7. Second inlet; 8. First outlet; 9. Second outlet; 101. Ball shell; 102. Round tube; 103. Socket; 201. Cover plate; 202. Partition; 203. Limiting block; 204. Limiting groove; 205. Perforation; 301. Valve plate; 302. Matching tube; 303. Through tube; 304. U-shaped bayonet; 401. Matching rod section; 402. Handle rod section; 403. Snap-fit ​​part; 404. Arc-shaped snap hole; 501. Plate; 502. Mounting tube; 503. Stop block. Detailed Implementation

[0056] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Those skilled in the art should understand that the embodiments described below are only some, not all, of the embodiments disclosed. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0057] The principles and spirit of the present invention will be explained in detail below with reference to several representative embodiments.

[0058] Example 1 of the four-way temperature control valve provided by the present invention:

[0059] like Figures 2 to 14 As shown, the four-way temperature control valve includes a valve body 1, an upper end cover 2, a valve core 3, a valve stem 4, and a baffle 5.

[0060] like Figure 4 As shown, the valve body 1 includes a hollow spherical shell 101 and four identical circular tubes 102 connected to the circumference of the spherical shell 101. The spherical shell 101 contains a valve cavity. The four circular tubes 102 are of the same size and penetrate the spherical shell 101 from the front, back, left, and right directions, respectively forming a first inlet 6, a second inlet 7, a first outlet 8, and a second outlet 9. The first inlet 6 and the second inlet 7 are arranged opposite each other, and the first outlet 8 and the second outlet 9 are arranged opposite each other, forming a cross-shaped water passage structure. In actual processing, the spherical shell 101 is cut by six mutually perpendicular planes. The distance from the planes to the center of the sphere is half the outer diameter of the circular tubes 102. Thus, the outer walls of any two adjacent circular tubes 102 are tangent, and the outer walls of each circular tube 102 are tangent to the top and bottom surfaces of the spherical shell 101. The top and bottom surfaces of the spherical shell 101 are both planes. The bottom of the spherical shell 101 is sealed, and the top has an opening. The spherical shell 101 has a socket 103 between two of the circular tubes 102, and the socket 103 extends from the top surface of the spherical shell 101 to the bottom wall of the inner shell of the spherical shell 101.

[0061] like Figure 15 As shown, the first inlet 6 is used to connect to the system's incoming water pipe, the second inlet 7 is used to connect to the cooler's outlet water pipe, the first outlet 8 is used to connect to the cooler's inlet water pipe, and the second outlet 9 is used to connect to the system's return water pipe. The cooler's inlet and outlet water pipes are connected to the cooler's inlet and outlet water pipes, respectively, while both the system's incoming and return water pipes are connected to a heat source.

[0062] like Figure 8 and Figure 9As shown, the upper cover 2 includes a cover plate 201 and a partition 202 connected to the bottom of the cover plate 201. The partition 202 has a placement step, which has a step plane and a step vertical surface, with the vertical surface extending to the upper surface of the partition 202. The lower surface of the cover plate 201 is fitted to the step plane, the outer circumferential surface of the cover plate 201 is fitted to the step vertical surface, and the upper surface of the cover plate 201 is flush with the upper surface of the partition 202. The partition 202 is inserted into the socket 103 on the spherical shell 101, and after insertion, the partition 202 seals the insertion point with the spherical shell 101. Simultaneously, the upper surface of the cover plate 201 is flush with the top surface of the spherical shell 101, thus sealing the opening at the top of the spherical shell 101 and achieving a seal on the valve cavity.

[0063] The valve core 3 is rotatably mounted inside the valve cavity, and the valve stem 4 is fixed relative to the valve core 3 to drive the valve core 3 to rotate, thereby realizing the opening and closing of the four-way temperature control valve. Specifically, as shown... Figure 5 As shown, the valve core 3 includes a valve plate 301 and a mating pipe 302 and a through pipe 303 fixed to the end of the valve plate 301 and arranged vertically at intervals. The mating pipe 302 and the through pipe 303 are coaxial and have equal inner and outer diameters. The baffle 5 is rotatably mounted on the valve stem 4, as shown. Figures 10 to 14 As shown, the baffle 5 is located between the valve core 3 and the partition 202, as Figure 6 As shown, the baffle 5 includes a plate body 501 and an installation pipe 502. The distance between the mating pipe 302 and the through pipe 303 is equal to the length of the installation pipe 502. The valve plate 301 and the plate body 501 have the same dimensions. Both the valve plate 301 and the plate body 501 are provided with sealing arc surfaces. The valve plate 301 and the plate body 501 can achieve a sealing fit with the inner wall surface of the spherical shell 101 through the sealing arc surfaces, thereby controlling the opening and closing of the corresponding water passage. When the valve plate 301 is fully open, it can realize the opening and closing of the water passage between the first inlet 6 and the second outlet 9; when the valve plate 301 is fully closed, it can realize the opening and closing of the water passage between the first inlet 6 and the first outlet 8.

[0064] like Figure 7As shown, the valve stem 4 includes a mating rod section 401, a handle rod section 402, and a locking part 403. The mating rod section 401 and the handle rod section 402 are perpendicularly connected. Two U-shaped latches 304 are arranged opposite each other on the wall of the mating pipe 302, extending axially to the upper end face of the mating pipe 302. The locking part 403 includes two rectangular latching blocks and an arc-shaped latching block connected between the two rectangular latching blocks. The arc-shaped latching block is a semi-circular block. The two rectangular latching blocks are symmetrical and connected to the radial sides of the mating rod section 401 respectively. The length of the rectangular latching block in the axial direction of the mating pipe 302 is the same as the depth of the U-shaped latch 304 in the axial direction of the mating pipe 302, allowing it to be locked into the corresponding U-shaped latch 304. The arc-shaped locking block, along with two rectangular locking blocks and the mating rod segment 401, together form an arc-shaped locking hole 404. This arc-shaped locking hole 404 is used to engage with the portion of the mating tube 302 located between the two U-shaped locking openings 304. The side of the partition 202 near the mating rod segment 401 has an arc-shaped concave surface adapted to the shape of the mounting tube 502 and the through tube 303. The upper cover plate 201 has a through hole 205 for the mating rod segment 401 to pass through.

[0065] During installation, the installation pipe 502 is inserted radially between the mating pipe 302 and the through pipe 303, maintaining coaxiality. Then, the mating rod section 401 is sequentially passed coaxially through the mating pipe 302, the installation pipe 502, and the through pipe 303. The rectangular locking block on the locking part 403 is engaged with the corresponding U-shaped locking slot 304. The portion of the mating pipe 302 between the two U-shaped locking slots 304 is inserted into the arc-shaped locking hole 404, thus fixing the valve stem 4 and the valve core 3 relatively. At this time, the lower surface of the arc-shaped locking block is in contact with the cover plate 201, and the upper surfaces of the arc-shaped locking block, the rectangular locking block, and the upper end face of the mating pipe 302 are flush. The arc-shaped concave surface on the partition 202 can hold the installation pipe 502 and the through pipe 303. The baffle 5 is a movable plate that can rotate relative to the valve stem 4 under the impact of water flow, thereby opening and closing the water passage between the second inlet 7 and the second outlet 9.

[0066] In this embodiment, the upper surface of the cover plate 201 is provided with a limiting block 203 for limiting the rotation angle of the valve core 3. The limiting block 203 is a fan-shaped block. The lower surface of the cover plate 201 is provided with a limiting groove 204 for limiting the rotation angle of the baffle 5. The limiting groove 204 is a fan-shaped annular groove. The central angles corresponding to the limiting block 203 and the limiting groove 204 are both 90°. The two end faces of the limiting block 203 are perpendicular to each other, and the two limiting walls of the limiting groove 204 are perpendicular to each other. The upper surface of the plate body 501 is provided with a stop block 503 extending into the limiting groove 204. When the baffle 5 rotates to its limit position, it can stop and cooperate with the limiting wall.

[0067] The four-way thermostatic valve of this invention is applied in corresponding cooling systems, such as... Figure 15 As shown, the specific working principle is as follows:

[0068] like Figure 10 As shown, initially, the system water flows through valve body 1 to the cooler, and baffle 5 does not move. When the cooling water from the cooler passes through valve body 1 to the heat source, the baffle 5 gradually begins to rotate due to the impact of the water flow. Figure 11 As shown, when valve body 1 is fully open, the system water enters from the first inlet 6, is guided by the valve plate 301 of valve core 3, and enters the cooling water inlet pipe from the first outlet 8. After being cooled in the cooler, it enters the second inlet 7 through the cooling water outlet pipe and is guided to the system return water pipe by the baffle 5. In this state, through the guidance of the four-way thermostatic valve, the system water will be completely cooled through the cooling pipe, and there will be no water in the system pipe that is not circulating.

[0069] like Figure 12 As shown, valve body 1 is in a semi-open state. A portion of the system water enters the cooling water inlet pipe through the first inlet 6 and the first outlet 8. Because there is a partition 202 between the first outlet 8 and the second inlet 7 on valve body 1, this portion of the system water will not flow back to the cooling water outlet pipe. The other portion of the system water is guided from the second outlet 9 through the baffle 5 to the system return water pipe. Simultaneously, due to the unidirectional flow of the baffle 5, this portion of the system water will not flow back to the cooling water outlet pipe. In this state, by adjusting the angle of valve core 3, the amount of system water flowing from the first inlet 6 to the first outlet 8 and the amount flowing from the first inlet 6 to the second outlet 9 can be controlled, that is, the ratio of system water entering the cooling water inlet pipe and the system return water pipe can be controlled, thereby achieving temperature control.

[0070] like Figure 13 As shown, since the direction to the cooler is closed, the system water flows directly into the system return water pipe through valve body 1. Because there is still residual cooling water flowing in the cooler, the cooling water flowing out of the cooler outlet pipe will still have a certain impact on the baffle 5, causing the baffle 5 to be in a pushed-open state. However, this impact is not enough to withstand the impact of the system water; that is, the water flow intensity on both sides of the baffle 5 is different. The system water continues to impact the baffle 5, causing the baffle 5 to gradually rotate towards the direction closer to the second inlet 7, until the baffle 5 is completely in sealing contact with the inner wall of valve body 1, completely isolating the water path between the second outlet 9 and the second inlet 7. Figure 14As shown, when valve body 1 is fully closed, all incoming water is guided to the system return water pipe through baffle 5. Simultaneously, the first outlet 8 and the second inlet 7 are completely separated by partition 202, and the second inlet 7 and the second outlet 9 are completely separated by baffle 5. In this state, through the flow guidance of the four-way thermostatic valve, the incoming water will not be cooled by the cooling pipe at all. This avoids water entrapment or liquid mixing, ensuring both the basic temperature control requirements of the thermostatic valve and the stepless adjustment effect of the four-way thermostatic valve.

[0071] Example 2 of the four-way temperature control valve provided by the present invention:

[0072] Its main difference from Example 1 is:

[0073] In Example 1, the valve core angle was adjusted manually by turning the handle on the valve stem. In this example, the valve core angle is adjusted electrically. An adjusting gear is connected to the outside of the mating section of the valve stem, and a drive gear is connected to the output shaft of the motor. The motor is fixed in a suitable position so that the drive gear meshes with the adjusting gear. The size of the adjusting gear is larger than the size of the drive gear.

[0074] Embodiment 3 of the four-way temperature control valve provided by the present invention:

[0075] Its main difference from Example 1 is:

[0076] In Example 1, the length of the rectangular locking block in the axial direction of the mating tube is the same as the depth of the U-shaped locking jaw in the axial direction of the mating tube. In this example, the length of the rectangular locking block in the axial direction of the mating tube is greater than the depth of the U-shaped locking jaw in the axial direction of the mating tube, but it is necessary to ensure that the locking part can engage with the mating tube.

[0077] Example 4 of the four-way temperature control valve provided by the present invention:

[0078] Its main difference from Example 1 is:

[0079] In Example 1, the limiting block is a sector-shaped block and the limiting groove is a sector-shaped annular groove. In this example, the limiting block is an L-shaped block and the limiting groove is a rectangular groove. Of course, the shapes of the limiting block and the limiting groove are not limited to these, as long as the limiting block has two mutually perpendicular limiting end faces and the limiting groove has two mutually perpendicular limiting walls.

[0080] Embodiments of the cooling system provided by the present invention:

[0081] like Figure 15As shown, the cooling system includes a heat source, a four-way thermostatic valve, a cooler, and a cooling water tank. The heat source is connected to the four-way thermostatic valve via a system inlet pipe and a system return pipe. The cooler is connected to the four-way thermostatic valve via a cooler inlet pipe and a cooler outlet pipe. The cooling water tank is connected to the system return pipe via a makeup water pipe. The structure of the four-way thermostatic valve is the same as that in the embodiments of the four-way thermostatic valves described above, and will not be described in detail here.

[0082] Based on the above description in this specification, those skilled in the art will also understand that terms used, such as "upper," "lower," "front," "rear," "top," "bottom," "axial," "length," "inner," and "outer," which indicate orientation or positional relationships, are based on the orientation or positional relationships shown in the accompanying drawings of this specification. They are only for the purpose of facilitating the explanation of the present invention and simplifying the description, and do not explicitly or implicitly suggest that the device or element involved must have the specific orientation, or be constructed and operated in a specific orientation. Therefore, the above-mentioned orientation or positional relationship terms should not be understood or interpreted as limitations on the present invention.

Claims

1. A four-way temperature control valve, characterized in that, include: The valve body has a valve cavity and two oppositely arranged first and second water inlets and two oppositely arranged first and second water outlets to form a cross-shaped water passage structure. The first water inlet is used to connect to the system water supply pipe, the second water inlet is used to connect to the cooler water outlet pipe, the first water outlet is used to connect to the cooler water inlet pipe, and the second water outlet is used to connect to the system return water pipe. The upper cover includes a cover plate and a partition connected to the bottom of the cover plate. The cover plate is used to seal the valve cavity, and the partition is inserted into and sealed with the valve body. The valve core is rotatably assembled in the valve cavity to realize the opening and closing of the water passage between the first inlet and the first outlet, and between the first inlet and the second outlet; The valve stem is fixed relative to the valve core to drive the valve core to rotate; The baffle is located between the valve core and the partition and is rotatably mounted on the valve stem. The baffle can rotate under the impact of the water flow to realize the opening and closing of the water passage between the second inlet and the second outlet. The valve body includes a hollow spherical shell and four identical circular tubes connected to the circumference of the spherical shell. The four circular tubes penetrate the spherical shell from four directions to form the first inlet, second inlet, first outlet, and second outlet, respectively. The outer walls of any two adjacent circular tubes are tangent to each other, and the outer walls of each circular tube are tangent to the top and bottom surfaces of the spherical shell. The upper surface of the cover plate is flush with the top surface of the spherical shell. The portion of the spherical shell between two of the circular tubes is provided with a socket for insertion into the partition, extending from the top surface of the spherical shell to the bottom wall of the inner shell. The valve core and the baffle both have sealing arc surfaces that are in sealing contact with the inner shell sidewall of the spherical shell. The valve core includes a valve plate and a mating tube and a through tube fixed to the end of the valve plate and arranged vertically at intervals. The baffle includes a plate body and an installation tube. The valve stem includes a mating rod segment, a handle rod segment, and a snap-fit ​​part. The valve plate and the plate body have the same dimensions, and both the valve plate and the plate body are provided with the sealing arc surface. The distance between the mating tube and the through tube is equal to the length of the installation tube. The mating rod segment passes through the mating tube, the installation tube, and the through tube in sequence on the same axis, and the snap-fit ​​part snaps into the mating tube to fix the valve stem and the valve core relative to each other. The upper surface of the cover plate is provided with a limiting block for limiting the rotation angle of the valve core, and the lower surface of the cover plate is provided with a limiting groove for limiting the rotation angle of the baffle. The two end faces of the limiting block are perpendicular to each other, and the limiting groove has two limiting walls that are perpendicular to each other. The upper surface of the plate body is provided with a stop block that extends into the limiting groove.

2. The four-way temperature control valve according to claim 1, characterized in that, The fitting tube has two U-shaped bayonets arranged opposite each other on its wall. The U-shaped bayonets extend along the axial direction of the fitting tube to the upper end face of the fitting tube. The locking part includes two rectangular locking blocks and an arc-shaped locking block connected between the two rectangular locking blocks. The two rectangular locking blocks are respectively connected to the radial sides of the fitting rod segment and respectively locked into the corresponding U-shaped bayonets. The arc-shaped locking block, together with the two rectangular locking blocks and the fitting rod segment, forms an arc-shaped locking hole. The arc-shaped locking hole is used to lock with the part of the fitting tube located between the two U-shaped bayonets.

3. The four-way temperature control valve according to claim 2, characterized in that, The length of the rectangular locking block in the axial direction of the mating pipe is the same as the depth of the U-shaped locking jaw in the axial direction of the mating pipe, and the lower surface of the arc-shaped locking block is in contact with the cover plate.

4. The four-way temperature control valve according to claim 2 or 3, characterized in that, The arc-shaped locking block is a semi-circular block, with two U-shaped locking slots respectively located on the radial sides of the mating pipe.

5. The four-way temperature control valve according to any one of claims 1-3, characterized in that, The partition has a step with a step plane and a step vertical plane. The step vertical plane extends to the upper surface of the partition. The lower surface of the cover plate is fitted and connected to the step plane, and the outer peripheral surface of the cover plate is fitted and connected to the step vertical plane. The upper surface of the cover plate is flush with the upper surface of the partition. The side of the partition near the mating rod section is an arc-shaped concave surface adapted to the shape of the mounting tube and the through tube.

6. The four-way temperature control valve according to claim 1, characterized in that, The limiting block is a sector-shaped block, and the limiting groove is a sector-shaped annular groove. The central angles of the limiting block and the limiting groove are both 90°.

7. A cooling system, characterized in that, It includes a heat source, a four-way thermostatic valve, a cooler, and a cooling water tank. The heat source is connected to the four-way thermostatic valve through a system water supply pipe and a system water return pipe. The cooler is connected to the four-way thermostatic valve through a cooler water inlet pipe and a cooler water outlet pipe. The cooling water tank is connected to the system water return pipe through a water supply pipe. The four-way thermostatic valve is the four-way thermostatic valve as described in any one of claims 1-6.

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