A cooling assembly for a quick-opening high-temperature spherical sealing cut-off valve

Abstract

The present invention relates to the technical field of cut-off valves, and in particular to a cooling assembly of a fast-opening high-temperature spherical sealing cut-off valve, including a valve body assembly, the valve body assembly including a symmetrically arranged first valve body and a second valve body, a valve flap assembly is provided inside the second valve body, a valve stem assembly driving its own rotation is provided on the valve flap assembly, a water inlet pipe and a water outlet pipe are provided inside the valve stem assembly, a cooling part connected to the water inlet pipe is provided inside the valve flap assembly, an array of liquid outlets are provided on the outside of the cooling part, and an adjusting part corresponding to the liquid outlet is provided on the surrounding side of the cooling part. The present invention provides a cooling part and an adjusting part, when the temperature difference between the coolant and the annular part gradually decreases, the temperature sensing piece gradually bends in the direction of the shunt pipe, and the temperature sensing piece pushes the diamond block to move through the connecting rod, so that the diamond block gradually separates from the shunt pipe, thereby realizing automatic adjustment of the flow of the shunt pipe and improving the cooling effect of the coolant on the valve flap assembly.

Description

Technical Field

[0001] The invention relates to the technical field of cut-off valves, and in particular to a cooling component of a fast-opening high-temperature spherical sealing cut-off valve. Background Art

[0002] The quick-opening high-temperature spherical sealing cut-off valve is a type of valve widely used in industrial production, especially in situations where fluid media need to be quickly cut off, such as chemical, petroleum, pharmaceutical, light industry and other industries. This valve receives the signal of the regulating instrument through the actuator to cut off, connect or switch the fluid in the process pipeline. Its structure is mainly composed of a valve body, a valve seat, a valve cover, a valve disc, a valve stem and a drive device that drives the valve stem to rotate. The quick-opening cut-off valve has the characteristics of simple structure, sensitive response, reliable action, and excellent sealing performance. It is suitable for a variety of media, including gas, liquid, etc.

[0003] When the existing high-temperature cut-off valve is used in scenarios where the medium is high-temperature argon, the high temperature will cause the valve material to expand, increase the operating torque, and even cause the valve stem or actuator to fail. Therefore, high-temperature wear-resistant materials and sealing technology become the key to designing such valves.

[0004] In response to the above problems, a Chinese patent with application number CN202410447917.X discloses a high-temperature resistant water-cooled flat gate valve, in which an upper valve cover is fixed on the inlet side of the valve body, and a material channel of the upper valve cover corresponds to a material channel of the valve body up and down; an upper plate surface of a reciprocatingly sliding valve plate fits with a movable valve seat in the upper valve cover, and a lower plate surface fits with a fixed valve seat of the valve body, and the valve plate is provided with a material channel for a valve plate open valve position; an upper valve cover is provided with an upper valve cover cooling water cavity separating the movable valve seat from the upper valve cover material channel, and the flow of cooling water is realized through an upper valve cover cooling water inlet channel and an upper valve cover cooling water outlet channel in the upper valve cover; a valve body cooling water cavity is provided in the valve body, and the flow of cooling water is realized through a valve body cooling water inlet channel and a valve body cooling water outlet channel; a valve plate is provided with a valve plate open valve position cooling water cavity and a valve plate closed valve position cooling water channel, and external cooling water enters the valve plate open valve position cooling water cavity through a water-cooling rod, and then flows out from the water-cooling rod through the valve plate closed valve position cooling water channel. The device has a simple structure, is wear-resistant and high-temperature-resistant, has good sealing performance, and can be operated with materials.

[0005] In summary, although the existing patents have achieved the cooling function of the valve body to a certain extent, their limitations in actual application scenarios are obvious. In particular, when the connecting channel deviates from the middle area of ​​the valve body, it is difficult for the cooling water to evenly and effectively reduce the temperature of various parts of the valve body, causing the temperature of some areas to be too high. In the process of switching the valve body state, the operating torque increases due to the thermal expansion of the material, and in severe cases, even causes the valve stem or actuator to fail.

[0006] In addition, due to actual working needs, the fluid flow through the valve body is often not in a stable state. The instability of the working fluid flow further aggravates the complexity of valve body temperature control, and the current technical system lacks a device that can automatically adjust the cooling efficiency according to the dynamic changes in the flow.

[0007] Therefore, developing a new cooling component for fast-opening, high-temperature spherical seal shut-off valves that can efficiently and flexibly meet the above challenges is not only crucial to improving the overall performance and reliability of the valve, but also an urgent and important task to promote progress in related technical fields. Summary of the invention

[0008] The object of the present invention is to provide a cooling assembly for a fast-opening high-temperature spherical sealing cut-off valve to solve the technical problems raised in the above-mentioned background technology.

[0009] To achieve the above object, the present invention provides the following technical solutions:

[0010] A cooling assembly for a quick-opening high-temperature spherical sealing cut-off valve, comprising:

[0011] A valve body assembly, the valve body assembly comprising a first valve body and a second valve body that are symmetrically arranged;

[0012] A valve seat, the interior of the first valve body is fixedly connected with the valve seat, and the valve seat is provided with symmetrically distributed first through holes;

[0013] A valve flap assembly, wherein the second valve body is provided with a valve flap assembly inside, the valve flap assembly is provided with a valve stem assembly for driving the valve flap assembly to rotate, and the valve stem assembly is provided with a water inlet pipe and a water outlet pipe inside;

[0014] A cooling part, wherein the valve flap assembly is provided with a cooling part connected to a water inlet pipe, and an array of liquid outlets are provided on the outside of the cooling part, wherein the liquid outlets are used to introduce cooling liquid into the valve flap assembly for cooling, and then discharge the cooling liquid through the water outlet pipe;

[0015] An adjusting part is provided on the peripheral side of the cooling part and corresponds to the liquid outlet. The adjusting part can perform telescopic movement according to the temperature change of the valve flap assembly itself and automatically adjust the flow rate of the liquid outlet.

[0016] Preferably, the valve flap assembly comprises:

[0017] an annular portion, wherein the annular portion is provided with a second through hole corresponding to the first through hole;

[0018] A fixing part, which is arranged at both ends of the annular part to form a cavity to accommodate the cooling part;

[0019] The fixing part is fixedly connected to the valve stem assembly, and the valve stem assembly drives the annular part to rotate, thereby realizing the connection and interlacing of the first through hole and the second through hole;

[0020] A drainage hole, wherein a single fixed portion is provided with a drainage hole communicated with the water outlet pipe, and a shielding portion is provided on the outer side of the drainage hole for adjusting the opening size of the drainage hole.

[0021] Preferably, the valve stem assembly comprises:

[0022] The first valve stem and the second valve stem are respectively located on both sides of the valve flap assembly and are respectively fixedly connected to the fixing parts distributed on both sides of the annular part; wherein the first valve stem is rotatably connected to the valve seat and the first valve body, and the second valve stem is rotatably connected to the second valve body.

[0023] The water inlet pipe is arranged in the middle of the second valve stem, and the plurality of water outlet pipes are distributed around the water inlet pipe, and the plurality of water outlet pipes are gathered at one end of the second valve stem away from the annular portion.

[0024] Preferably, the cooling unit comprises:

[0025] A diverter box, which is arranged at the outlet end of the water inlet pipe;

[0026] A shunt pipe is provided outside the shunt box with shunt pipes distributed in an array, and the shunt pipes are connected to the inside of the shunt box. The coolant flowing out of the shunt pipes cools down different areas of the inner circle of the annular part.

[0027] Preferably, the adjustment unit comprises:

[0028] A diamond block, which is arranged at the liquid inlet of the shunt pipe, the size of which gradually increases from both ends to the middle, and the diameter of the end of the diamond block is smaller than the diameter of the liquid inlet;

[0029] A connecting rod, one end of the diamond block facing the liquid outlet of the shunt pipe is provided with a connecting rod, and the connecting rod supports the diamond block;

[0030] A temperature sensing piece, wherein the inner ring of the annular portion is provided with mounting grooves distributed in an array, and a temperature sensing piece is arranged inside the mounting groove, and the temperature sensing piece is connected to an end of the connecting rod away from the diamond block;

[0031] When the temperature difference between the coolant and the annular portion gradually decreases, the temperature sensing piece gradually bends toward the direction of the shunt tube, and the temperature sensing piece pushes the diamond block to move through the connecting rod, so that the diamond block gradually separates from the shunt tube.

[0032] Preferably, the shielding portion comprises:

[0033] A shielding block, wherein the shielding block is arranged outside the drainage hole;

[0034] An elastic member, wherein the top of the shielding block is provided with an elastic member, and one end of the elastic member away from the shielding block is fixedly connected to the annular portion;

[0035] A movable rod, wherein a movable rod is provided at the bottom of the shielding block, an end of the movable rod away from the shielding block penetrates into the second valve stem and is connected to a movable member provided at the liquid outlet end of the water outlet pipe;

[0036] When the moving part moves along the water outlet pipe, the movable rod is pushed, forcing the shielding block to change the shielding range of the drainage hole.

[0037] Preferably, the moving member comprises:

[0038] An annular block, the annular block is slidably arranged inside the water outlet pipe;

[0039] A wedge-shaped portion, wherein one end of the annular block facing the diverter box is provided with a wedge-shaped portion, and the wedge-shaped portion abuts against the diamond-shaped block;

[0040] An extrusion portion, wherein the outer ring of the annular block is provided with an extrusion portion corresponding to the movable rod.

[0041] Preferably, an inlet pipe is provided at one end of the first valve body away from the second valve body, and the inlet pipe is connected to a first through hole provided on the valve seat;

[0042] A first inlet symmetrical to the inlet pipe is arranged inside the first valve body, the first inlet is not connected to the outer surface of the first valve body, and a first annular groove connecting the inlet pipe and the first inlet is arranged between the two.

[0043] Preferably, an outlet pipe is provided at one end of the second valve body away from the first valve body, and the outlet pipe and the inlet pipe are located at the same horizontal plane;

[0044] The second valve body is provided with a second inlet symmetrical to the outlet pipe, the second inlet is not connected to the outer surface of the second valve body, and a second annular groove connecting the outlet pipe and the second inlet is provided between the two.

[0045] Preferably, a support frame is provided on the outer side of the valve body assembly, and the support frame is used to support the valve body assembly;

[0046] A support plate is provided on the top of the support frame, a driving device is provided on the support plate, and an output end of the driving device is connected to the outer side of the second valve stem through a transmission component;

[0047] The driving device drives the second valve stem to rotate through the transmission component to achieve on-off control of the valve body assembly.

[0048] Technical effects and advantages of the present invention:

[0049] 1. The present invention sets a main flow path and a branch flow path so that after the high-temperature fluid enters the first valve body and the second valve body from the outlet pipe, the pressure is relieved and diverted at the first annular groove between the outlet pipe and the valve seat, thereby avoiding the phenomenon that the fluid pressure of the high-temperature fluid is too high when flowing through the first valve body and the second valve body, thereby causing the sealing surface between the valve disc assembly and the valve seat to have an excessively large gap.

[0050] 2. The present invention provides a flow divider box and a flow divider pipe, so that after the coolant enters the water inlet pipe through the water inlet interface, it is evenly distributed to each flow divider pipe through the flow divider box provided at the outlet end of the water inlet pipe. These flow dividers are distributed in the inner ring area of ​​the annular part in an array manner, ensuring comprehensive and uniform cooling treatment of different areas of the inner ring of the annular part. The risk of excessive sealing gap caused by thermal expansion is reduced, thereby ensuring the sealing and safety of high-temperature fluid during the flow process.

[0051] 3. The present invention provides a temperature-sensitive sheet and a diamond block. When the temperature of the annular portion increases due to an increase in the flow rate of the high-temperature fluid, the temperature-sensitive sheet warps toward the shunt pipe, thereby reducing the blocking area of ​​the drainage hole, accelerating the discharge speed of the coolant, and reducing the residence time of the coolant in the annular portion, thereby achieving efficient control of the temperature of the annular portion and ensuring the stable operation of the shut-off valve under a high-temperature and high-pressure environment. At the same time, when the flow rate of the high-temperature fluid decreases, the temperature-sensitive sheet warps in the opposite direction, thereby reducing the flow rate of the coolant entering the shunt pipe and increasing the blocking area of ​​the drainage hole, thereby extending the residence time of the coolant in the annular portion and avoiding waste of coolant. BRIEF DESCRIPTION OF THE DRAWINGS

[0052] Figure 1 It is a schematic diagram of the main structure of the present invention;

[0053] Figure 2 It is a structural schematic diagram of the valve body assembly of the present invention;

[0054] Figure 3 It is a schematic diagram of the internal structure of the valve body assembly of the present invention;

[0055] Figure 4 It is a structural schematic diagram of the first valve body of the present invention;

[0056] Figure 5 It is a structural schematic diagram of the second valve body of the present invention;

[0057] Figure 6 It is a structural schematic diagram of the valve flap assembly of the present invention;

[0058] Figure 7 It is a schematic diagram of the connection between the valve flap assembly and the valve stem assembly of the present invention;

[0059] Figure 8 It is a schematic diagram of the connection structure between the valve flap assembly and the cooling part of the present invention;

[0060] Fig. 9 It is a schematic structural diagram of the cooling unit of the present invention;

[0061] Fig.10 It is a structural schematic diagram of the regulating part of the present invention;

[0062] Fig.11 Schematic diagram of the flow direction of the coolant of the present invention.

[0063] The accompanying drawings are marked as follows:

[0064] 1. Valve body assembly; 101. First valve body; 102. Second valve body; 103. Inlet pipe; 104. First inlet; 105. First annular groove; 106. Outlet pipe; 107. Second inlet; 108. Second annular groove;

[0065] 2. Valve seat;

[0066] 3. a first through hole;

[0067] 4. Valve flap assembly; 401. annular portion; 402. second through hole; 403. fixing portion; 404. drainage hole;

[0068] 5. Valve stem assembly; 501. first valve stem; 502. second valve stem;

[0069] 6. Cooling unit; 601. Diverter box; 602. Diverter pipe;

[0070] 7. Adjustment unit; 701. Diamond block; 702. Connecting rod; 703. Temperature sensing piece;

[0071] 8. Moving part; 801. Ring block; 802. Wedge-shaped part; 803. Extrusion part;

[0072] 9. Shielding part; 901. Shielding block; 902. Elastic member; 903. Movable rod;

[0073] 10. Support frame;

[0074] 11. Driving device;

[0075] 12. Transmission parts;

[0076] 13. Water inlet pipe;

[0077] 14. Water outlet pipe. DETAILED DESCRIPTION

[0078] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0079] Embodiment 1

[0080] Reference Figures 1 to 11 As shown, the present invention provides a cooling assembly for a fast-opening high-temperature spherical sealing cut-off valve, including a valve body assembly 1, wherein the valve body assembly 1 includes a first valve body 101 and a second valve body 102 which are symmetrically arranged.

[0081] The valve seat 2 is fixedly connected to the interior of the first valve body 101 , and the valve seat 2 is provided with symmetrically distributed first through holes 3 .

[0082] The valve flap assembly 4 is provided inside the second valve body 102 , and a valve stem assembly 5 for driving the valve flap assembly 4 to rotate is provided on the valve flap assembly 4 , and a water inlet pipe 13 and a water outlet pipe 14 are provided inside the valve stem assembly 5 .

[0083] Reference Figures 6 to 8 As shown, the valve flap assembly 4 includes an annular portion 401 , and a second through hole 402 corresponding to the first through hole 3 is provided on the annular portion 401 .

[0084] When the shut-off valve is in an open state, the two second through holes 402 on the annular portion 401 are both connected to the first through hole 3 on the valve seat 2; when the shut-off valve is in a disconnected state, the two second through holes 402 on the annular portion 401 are not connected to the first through hole 3 on the valve seat 2.

[0085] The fixing part 403 is arranged at both ends of the annular part 401. There is a cavity between the two fixing parts 403, and the water inlet pipe 13 passes the coolant into the cavity. As the liquid level rises, the coolant in the cavity is discharged from the cavity through the water outlet pipe 14. In this process, the coolant cools the inner ring of the annular part 401 to avoid thermal expansion and deformation of the valve flap assembly 4 due to the influence of the material.

[0086] The fixing portion 403 is fixedly connected to the valve stem assembly 5 , and the valve stem assembly 5 drives the annular portion 401 to rotate, thereby achieving the communication and interlacing of the first through hole 3 and the second through hole 402 .

[0087] Drain hole 404 : A single fixing portion 403 is provided with a drain hole 404 which is communicated with the water outlet pipe 14 .

[0088] As the liquid level inside the cavity gradually rises, the coolant in the cavity enters the water outlet pipe 14 through the drainage holes 404 distributed on the fixed part 403, and is discharged from the cavity through the water outlet pipe 14. During this process, the coolant cools the inner ring of the annular part 401 to avoid thermal expansion and deformation of the valve flap assembly 4 due to material influence.

[0089] Reference Figures 3 to 8 As shown, the valve stem assembly 5 includes a first valve stem 501 and a second valve stem 502, and the first valve stem 501 and the second valve stem 502 are respectively located on both sides of the valve flap assembly 4, and are respectively fixedly connected to the fixing parts 403 distributed on both sides of the annular part 401; wherein the first valve stem 501 is rotatably connected to the valve seat 2 and the first valve body 101, and the second valve stem 502 is rotatably connected to the second valve body 102.

[0090] The water inlet pipe 13 is disposed in the middle of the second valve stem 502 , and a plurality of water outlet pipes 14 are distributed around the water inlet pipe 13 . The plurality of water outlet pipes 14 converge at one end of the second valve stem 502 away from the annular portion 401 .

[0091] The second valve stem 502 is provided with a water inlet interface connected to the water inlet pipe 13 , and the outer side of the water inlet interface is provided with a water outlet interface connected to the water outlet pipe 14 .

[0092] Reference Figures 2 to 4 As shown, an inlet pipe 103 is provided at one end of the first valve body 101 away from the second valve body 102 , and the inlet pipe 103 is connected to a first through hole 3 provided on the valve seat 2 .

[0093] A first inlet 104 symmetrical to the inlet pipe 103 is provided in the first valve body 101 . The first inlet 104 is not connected to the outer surface of the first valve body 101 . A first annular groove 105 connecting the inlet pipe 103 and the first inlet 104 is provided between the two.

[0094] Reference Figures 2 to 5 As shown, an outlet pipe 106 is provided at one end of the second valve body 102 away from the first valve body 101 , and the outlet pipe 106 and the inlet pipe 103 are located at the same horizontal plane.

[0095] A second inlet 107 circumferentially symmetrical to the outlet pipe 106 is provided in the second valve body 102 . The second inlet 107 is not connected to the outer surface of the second valve body 102 . A second annular groove 108 connecting the outlet pipe 106 and the second inlet 107 is provided between the two.

[0096] Reference Figure 1 As shown, a support frame 10 is provided on the outer side of the valve body assembly 1 , and the support frame 10 is used to support the valve body assembly 1 .

[0097] A support plate is provided on the top of the support frame 10, and a driving device 11 is provided on the support plate. The output end of the driving device 11 is connected to the outer side of the second valve stem 502 through a transmission component 12. The driving device 11 includes a driving motor.

[0098] The transmission component 12 includes a belt transmission device, and both ends of the belt are connected to the output end of the driving device 11 and the outer side of the second valve stem 502 respectively. The output end of the driving device 11 and the outer side of the second valve stem 502 are both provided with pulleys connected to the belt.

[0099] The driving device 11 drives the second valve stem 502 to rotate through the transmission component 12 to achieve on-off control of the valve body assembly 1 .

[0100] When in use, the driving device 11 is started, and the driving device 11 drives the second valve stem 502 to rotate through the transmission component 12. The second valve stem 502 drives the annular portion 401 to rotate through the fixing portion 403 until the two second through holes 402 on the annular portion 401 are in a connected state with the first through hole 3 on the valve seat 2. At this point, the shut-off valve is in an open state.

[0101] When the shut-off valve is in the open state, the flow path of the high-temperature fluid is: the high-temperature fluid enters between the first valve body 101 and the second valve body 102 from the inlet pipe 103, and then enters a second through hole 402 on the annular portion 401 through the first through hole 3 connected to the inlet pipe 103, and enters the outlet pipe 106 through the second through hole 402. This is the main flow path of the high-temperature fluid.

[0102] After the high-temperature fluid enters the first valve body 101 and the second valve body 102 from the inlet pipe 103, the pressure is relieved and diverted at the first annular groove 105 between the inlet pipe 103 and the valve seat 2. Part of the high-temperature fluid enters another first through hole 3 on the valve seat 2 through the first annular groove 105, and then enters the second annular groove 108 between the valve flap assembly 4 and the second valve body 102 through another second through hole 402 on the annular portion 401 that is connected to it. The high-temperature fluid enters the outlet pipe 106 through the guidance of the second annular groove 108, which is a branch flow path of the high-temperature fluid.

[0103] By setting a main flow path and a branch flow path in the first valve body 101 and the second valve body 102, it is avoided that when the high-temperature fluid flows through the first valve body 101 and the second valve body 102, the fluid pressure is too high, which may cause a large gap on the sealing surface between the valve flap assembly 4 and the valve seat 2.

[0104] When the high-temperature fluid flows in the main flow path and the branch flow path, the coolant is introduced into the water inlet pipe 13 on the second valve stem 502 through the water inlet interface, and the coolant enters the inner ring area of ​​the annular portion 401, that is, the cavity area between the two fixed portions 403, through the water inlet pipe 13. As the liquid level of the coolant in the cavity gradually rises, the coolant in the cavity enters the water outlet pipe 14 through the drainage holes 404 distributed on the fixed portion 403, and is discharged from the cavity through the water outlet pipe 14. In this process, the coolant cools the inner ring of the annular portion 401 to prevent the valve flap assembly 4 from thermal expansion and deformation due to the influence of the material, which leads to excessive friction between the valve flap assembly 4 and the valve seat 2 when the second valve stem 502 drives the valve flap assembly 4 to rotate, resulting in an excessive sealing gap between the two.

[0105] Embodiment 2

[0106] Although the above embodiment can realize the cooling function of the valve body to a certain extent, due to actual working needs, the fluid flow through the valve body is often not in a stable state. The instability of the working fluid flow further increases the complexity of the valve body temperature control, and the current technical system still lacks a device that can automatically adjust the cooling efficiency according to the dynamic changes of the flow. In view of this, technical improvements are made on the basis of the first embodiment, and the improved technical solution is as follows:

[0107] Reference Figures 6 to 11 As shown, the valve flap assembly 4 is provided with a cooling part 6 connected to the water inlet pipe 13 inside, and the outside of the cooling part 6 is provided with an array of liquid outlets, which are used to introduce coolant into the valve flap assembly 4 for cooling and then discharge it through the water outlet pipe 14.

[0108] Reference Figures 6 to 11 As shown, the cooling unit 6 includes a diverter box 601 , which is disposed at the outlet end of the water inlet pipe 13 .

[0109] The shunt tube 602 is arranged outside the shunt box 601 in an array, and the shunt tube 602 is connected to the inside of the shunt box 601 . The coolant flowing out of the shunt tube 602 cools down different areas of the inner circle of the annular portion 401 .

[0110] The number of the shunt tubes 602 is greater than the number of the second through holes 402 , and the liquid outlet ends of the shunt tubes 602 face the various areas of the inner circle of the annular portion 401 .

[0111] Reference Figures 7 to 11 As shown, an adjusting portion 7 corresponding to the liquid outlet is provided on the peripheral side of the cooling portion 6. The adjusting portion 7 can perform telescopic movement according to the temperature change of the valve flap assembly 4 itself, and automatically adjust the flow rate of the liquid outlet.

[0112] Reference Figures 8 to 11As shown, the regulating part 7 includes a diamond block 701, which is arranged at the liquid inlet of the shunt tube 602. The size of the diamond block 701 gradually increases from both ends to the middle, and the end diameter of the diamond block 701 is smaller than the diameter of the liquid inlet.

[0113] Connecting rod 702 , a connecting rod 702 is provided at one end of the diamond block 701 facing the liquid outlet of the shunt tube 602 , and the connecting rod 702 supports the diamond block 701 .

[0114] Temperature sensing piece 703 : The inner circle of the annular portion 401 is provided with array-distributed mounting grooves, and the temperature sensing piece 703 is arranged inside the mounting groove. The temperature sensing piece 703 is connected to one end of the connecting rod 702 away from the diamond block 701 .

[0115] The temperature sensing piece 703 includes a horizontal flat part connected to the connecting rod 702, and a deformation part is provided at both ends of the horizontal flat part. The end of the deformation part away from the horizontal flat part is fixedly connected to the annular part 401. The deformation part includes a bimetallic strip. The deformation part will bend due to the influence of temperature, while the horizontal flat part will not be deformed due to the influence of temperature. By configuring the temperature sensing piece 703 as a combination of the horizontal flat part and the deformation part, the temperature sensing piece 703 is prevented from breaking at the connection with the connecting rod 702 during the reciprocating deformation process.

[0116] When the temperature difference between the coolant and the annular portion 401 gradually decreases, the temperature sensing piece 703 gradually bends toward the shunt tube 602 , and the temperature sensing piece 703 pushes the diamond block 701 to move through the connecting rod 702 , so that the diamond block 701 gradually separates from the shunt tube 602 .

[0117] Reference Figures 6 to 11 As shown, a shielding portion 9 is provided on the outer side of the drainage hole 404 for adjusting the opening size of the drainage hole 404 .

[0118] Reference Figures 6 to 11 As shown, the shielding portion 9 includes a shielding block 901 , and the shielding block 901 is arranged outside the drainage hole 404 .

[0119] In the initial state, the blocking block 901 does not completely block the drainage hole 404 to ensure that the coolant can be discharged from the inner circle area of ​​the annular portion 401 through the drainage hole 404 .

[0120] Elastic member 902: An elastic member 902 is disposed on the top of the shielding block 901, and one end of the elastic member 902 away from the shielding block 901 is fixedly connected to the annular portion 401. The elastic member 902 includes a spring or an elastic telescopic member.

[0121] A movable rod 903 is provided at the bottom of the shielding block 901 , and one end of the movable rod 903 away from the shielding block 901 penetrates into the second valve stem 502 and is connected to the movable member 8 provided at the liquid outlet end of the water outlet pipe 14 .

[0122] When the moving member 8 moves along the water outlet pipe 14 , it pushes the movable rod 903 , forcing the blocking block 901 to change the blocking range of the drainage hole 404 .

[0123] Reference Fig.10 As shown, the moving member 8 includes an annular block 801 , and the annular block 801 is slidably arranged inside the water outlet pipe 14 .

[0124] Wedge-shaped portion 802 : A wedge-shaped portion 802 is provided at one end of the annular block 801 facing the diverter box 601 , and the wedge-shaped portion 802 abuts against the diamond-shaped block 701 .

[0125] Extrusion portion 803 : The outer ring of the annular block 801 is provided with an extrusion portion 803 corresponding to the movable rod 903 .

[0126] The cross-section of the extrusion portion 803 is wedge-shaped, with the side of the extrusion portion 803 facing the wedge-shaped portion 802 being the highest point and the side away from the wedge-shaped portion 802 being the lowest point. When the annular block 801 moves away from the diversion box 601, the extrusion portion 803 squeezes the movable rod 903, forcing the movable rod 903 to push the blocking block 901 to move toward the outer circle direction of the annular portion 401.

[0127] When in use, the coolant enters the water inlet channel through the water inlet interface, is guided by the water inlet channel into the interior of the diverter box 601, and then is sprayed out from the diverter tubes 602 distributed on the diverter box 601. Since the number of diverter tubes 602 is greater than the number of second through holes 402, the coolant sprayed from the diverter tubes 602 can cool down various areas of the inner circle of the annular portion 401.

[0128] While the shunt pipe 602 is cooling various areas of the inner circle of the annular portion 401 , the temperature sensing piece 703 arranged on the inner circle of the annular portion 401 continuously detects the flow rate of the high-temperature fluid flowing through the annular portion 401 to adjust the flow rate ejected from the shunt pipe 602 in real time.

[0129] Under normal circumstances, the flow rate of the high-temperature fluid flowing through the annular portion 401 is at a stable value, so that the flow rate ejected by the diverter pipe 602 can comprehensively cool the inner circle of the annular portion 401. At this time, the temperature difference between the coolant and the annular portion 401 is in a stable state, and the temperature sensing piece 703 is in a normal warping state.

[0130] When the flow rate of the high-temperature fluid flowing through the annular portion 401 increases per unit time, the heat received by the annular portion 401 increases due to the faster heat exchange rate, causing its temperature to gradually rise. The temperature of the coolant is relatively stable, so the temperature difference between the coolant and the annular portion 401 gradually decreases.

[0131] When the temperature difference between the coolant and the annular portion 401 gradually decreases, the temperature sensing piece 703 gradually bends toward the direction of the shunt tube 602, and the temperature sensing piece 703 drives the diamond block 701 to move toward the center of the shunt box 601 through the connecting rod 702, that is, the part of the diamond block 701 located inside the shunt tube 602 gradually separates from the inner area of ​​the shunt tube 602, so that the coolant that may have been blocked by the diamond block 701 can flow more smoothly into the shunt tube 602, thereby increasing the flow rate entering the shunt tube 602. This increased flow rate provides a more sufficient cooling effect for the annular portion 401, which helps to further reduce the temperature of the annular portion 401. At the same time, the part of the diamond block 701 away from the diverter pipe 602 synchronously squeezes the wedge-shaped portion 802. When the wedge-shaped portion 802 is squeezed, it can drive the annular block 801 to move toward the water inlet end of the water inlet pipe 13. During this process, the squeezing portion 803 on the annular block 801 synchronously presses the movable rod 903, so that it pushes the blocking block 901 to move toward the inner circle direction of the annular portion 401, thereby reducing the blocking area of ​​the drainage hole 404, thereby allowing more coolant to be discharged from the drainage hole 404, increasing the flow rate discharged from the annular portion 401.

[0132] By increasing the flow rate entering the shunt pipe 602 and the flow rate discharged from the annular portion 401, the residence time of the coolant in the annular portion 401 is reduced, and the cooling effect of the annular portion 401 is improved, thereby ensuring the stable operation of the entire system.

[0133] When the flow rate of the high-temperature fluid flowing through the annular portion 401 per unit time decreases, the heat exchange rate between the fluid and the annular portion 401 decreases, resulting in a gradual decrease in the amount of heat received by the annular portion 401. At this time, the temperature of the coolant is relatively stable, so the temperature difference between the coolant and the annular portion 401 gradually increases.

[0134] When the temperature difference between the coolant and the annular portion 401 gradually increases, the temperature sensing piece 703 gradually warps toward the outer circle of the annular portion 401, and the temperature sensing piece 703 drives the part of the diamond block 701 located inside the shunt tube 602 to move toward the outer circle of the annular portion 401, so that the diamond block 701 further blocks the coolant flowing into the shunt tube 602. At the same time, the part of the diamond block 701 away from the shunt tube 602 reduces the squeezing of the wedge-shaped portion 802. Under the elastic recovery ability of the elastic member 902, the elastic member 902 pushes the shielding block 901 to further block the drainage hole 404, and the flow discharged through the drainage hole 404 is further reduced. When the shielding block 901 blocks the drainage hole 404, the movable rod 903 squeezes the squeezing portion 803 on the annular block 801, forcing the wedge-shaped portion 802 to move toward the direction of the shunt box 601, so that the wedge-shaped portion 802 and the diamond block 701 are always in abutment.

[0135] By reducing the flow rate entering the shunt pipe 602 and the flow rate discharged from the annular portion 401, the residence time of the coolant in the annular portion 401 is increased, thereby avoiding the waste of the coolant during the cooling operation.

[0136] It should be noted that, since the diamond blocks 701 distributed in the shunt box 601 are all in contact with the same wedge-shaped portion 802, this structure ensures that when the annular block 801 moves, its movement amount can be precisely controlled in a specific manner. Specifically, the movement amount of the annular block 801 is determined based on the movement distance of the diamond block 701 corresponding to the temperature sensing piece 703 with the largest warping degree toward the shunt box 601.

[0137] This means that, although the diamond blocks 701 in the diversion box 601 may have different degrees of obstruction to the water flow of each diversion pipe 602 due to different positions, the movement of the annular block 801 will uniformly affect the blocking range of all the blocking blocks 901 on the drainage holes 404. It is ensured that the blocking range of the drainage holes 404 by the blocking blocks 901 is based on the current maximum movement distance of the diamond blocks 701, that is, the blocking range of the drainage holes 404 by the blocking blocks 901 reaches the minimum value of the current conditions, so as to achieve the purpose of balancing the drainage volume of each diversion pipe 602.

[0138] When the temperature difference between each area of ​​the inner circle of the annular portion 401 and the coolant is unevenly distributed, since the blocking range of the drainage hole 404 by the blocking block 901 is based on the current maximum moving distance of the diamond block 701, the time for the coolant in the annular portion 401 to be discharged from the drainage hole 404 is accelerated, the residence time of the coolant in the annular portion 401 is reduced, and the temperature of the annular portion 401 is effectively reduced, thereby ensuring the stable operation of the entire system.

[0139] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A cooling assembly for a fast-opening high-temperature spherical sealing cut-off valve, characterized in that: include: A valve body assembly, the valve body assembly comprises a first valve body and a second valve body which are symmetrically arranged; a valve seat, the interior of the first valve body is fixedly connected with the valve seat, the valve seat is provided with first through holes which are symmetrically distributed; a valve flap assembly, the interior of the second valve body is provided with a valve flap assembly, the valve flap assembly is provided with a valve stem assembly which drives itself to rotate, and the interior of the valve stem assembly is provided with a water inlet pipe and a water outlet pipe; a cooling part, the interior of the valve flap assembly is provided with a cooling part connected with the water inlet pipe, the outer side of the cooling part is provided with liquid outlets which are distributed in an array, the liquid outlets are used to introduce cooling liquid into the interior of the valve flap assembly for cooling, and then discharge it through the water outlet pipe; an adjusting part, the peripheral side of the cooling part is provided with an adjusting part corresponding to the liquid outlet, the adjusting part can perform telescopic movement according to the temperature change of the valve flap assembly itself, and automatically adjust the flow rate of the liquid outlet; The valve flap assembly comprises: an annular portion, on which a second through hole corresponding to the first through hole is provided; a fixing portion, which is arranged at both ends of the annular portion to form a cavity to accommodate the cooling portion; the fixing portion is fixedly connected to the valve stem assembly, and the annular portion is driven to rotate by the valve stem assembly to achieve the connection and interlacing of the first through hole and the second through hole; a drainage hole, a single drainage hole connected to the water outlet pipe is provided on the fixing portion, and a shielding portion is provided on the outer side of the drainage hole to adjust the opening size of the drainage hole; The cooling part comprises: a diverter box, which is arranged at the outlet end of the water inlet pipe; a diverter pipe, the outside of the diverter box is provided with an array of diverter pipes, the diverter pipes are connected with the inside of the diverter box, and the coolant flowing out of the diverter pipes cools down different areas of the inner ring of the annular part; The regulating part comprises: a diamond block, which is arranged at the liquid inlet of the shunt pipe, the size of the diamond block gradually increases from both ends to the middle, and the end diameter of the diamond block is smaller than the diameter of the liquid inlet; a connecting rod, a connecting rod is arranged at one end of the diamond block facing the liquid outlet of the shunt pipe, and the connecting rod supports the diamond block; a temperature sensing piece, the inner circle of the annular part is provided with an array of mounting grooves, and the interior of the mounting groove is provided with a temperature sensing piece, and the temperature sensing piece is connected to the end of the connecting rod away from the diamond block; when the temperature difference between the coolant and the annular part gradually decreases, the temperature sensing piece gradually bends toward the direction of the shunt pipe, and the temperature sensing piece pushes the diamond block to move through the connecting rod, so that the diamond block gradually separates from the shunt pipe; The shielding part includes: a shielding block, which is arranged on the outside of the drainage hole; an elastic member, an elastic member is arranged on the top of the shielding block, and the end of the elastic member away from the shielding block is fixedly connected to the annular part; a movable rod, a movable rod is arranged at the bottom of the shielding block, and the end of the movable rod away from the shielding block penetrates into the second valve stem and is connected to a movable member arranged at the liquid outlet end of the water outlet pipe; during the movement of the movable member along the water outlet pipe, the movable rod is pushed to force the shielding block to change the shielding range of the drainage hole; the movable member includes: an annular block, which is slidably arranged inside the water outlet pipe; a wedge-shaped portion, a wedge-shaped portion is arranged at one end of the annular block facing the diversion box, and the wedge-shaped portion abuts against the diamond block; an extrusion portion, an outer ring of the annular block is provided with an extrusion portion corresponding to the movable rod.

2. The cooling assembly of the fast-opening high-temperature spherical sealing cut-off valve according to claim 1 is characterized in that: The valve stem assembly includes: a first valve stem and a second valve stem, wherein the first valve stem and the second valve stem are respectively located on both sides of the valve flap assembly and are respectively fixedly connected to the fixing parts distributed on both sides of the annular portion; wherein the first valve stem is rotatably connected to the valve seat and the first valve body, and the second valve stem is rotatably connected to the second valve body; the water inlet pipe is arranged in the middle part of the second valve stem, and the plurality of water outlet pipes are distributed on the circumferential side of the water inlet pipe, and the plurality of water outlet pipes are gathered at one end of the second valve stem away from the annular portion.

3. The cooling assembly of the fast-opening high-temperature spherical sealing cut-off valve according to claim 1 is characterized in that: An inlet pipe is provided at one end of the first valve body away from the second valve body, and the inlet pipe is connected to a first through hole arranged on the valve seat; a first inlet is provided in the first valve body, which is circumferentially symmetrical with the inlet pipe, and the first inlet is not connected to the outer surface of the first valve body. A first annular groove connecting the inlet pipe and the first inlet is provided between the inlet pipe and the first inlet.

4. The cooling assembly of the fast-opening high-temperature spherical sealing cut-off valve according to claim 3 is characterized in that: An outlet pipe is provided at one end of the second valve body away from the first valve body, and the outlet pipe and the inlet pipe are located in the same horizontal plane; a second inlet is provided in the second valve body and is circumferentially symmetrical with the outlet pipe, and the second inlet is not connected to the outer surface of the second valve body, and a second annular groove connecting the outlet pipe and the second inlet is provided between the two.

5. The cooling assembly of the fast-opening high-temperature spherical sealing cut-off valve according to claim 1, characterized in that: A support frame is provided on the outside of the valve body assembly, and the support frame is used to support the valve body assembly; a support plate is provided on the top of the support frame, and a driving device is provided on the support plate, and the output end of the driving device is connected to the outside of the second valve stem through a transmission component; the driving device drives the second valve stem to rotate through the transmission component to realize on-off control of the valve body assembly.

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