Combined high-temperature and high-pressure valve

Abstract

The invention relates to the technical field of valves, in particular to a combined high-temperature and high-pressure valve which comprises a valve body, a valve seat and a valve element. The flow slowing mechanism is used for slowing down the flow speed of fluid, and the outer wall of the flow slowing mechanism is fixedly connected with the inner wall of the valve body; the check mechanism is used for preventing fluid from flowing back, and the outer wall of the check mechanism is fixedly connected with the inner wall of the side, away from the flow slowing mechanism, of the valve body. By arranging the flow slowing mechanism, in the flowing process of the fluid, the fluid impacts the flow baffle and flows through a gap between the flow baffle and the flow baffle ring, so that the flow direction of the fluid is disturbed, and therefore the flow direction of the fluid is disturbed; by arranging the flow disturbing assembly, the flow velocity of the fluid can be further reduced, impurities doped in the fluid can be filtered out, the flow velocity of the fluid can be further reduced by arranging the flow disturbing assembly, the valve element is protected, and the valve element is prevented from being damaged due to the water hammer effect at the moment when the valve is opened.

Description

Technical Field

[0001] The present invention relates to the technical field of valves, and in particular to a combined high-temperature and high-pressure valve. Background Art

[0002] Combined high temperature and high pressure valve is a kind of pipeline connector used to open and close pipelines, control flow direction, and adjust and control the working fluid delivery time. In some industrial fields, such as petrochemicals, energy, etc., valves that can withstand high temperature and high pressure are often needed to adapt to the sealing under various working conditions.

[0003] In the prior art, the existing high-temperature and high-pressure valves are used in a high-pressure environment for a long time during use. Therefore, at the moment of opening and closing the valve, the valve core of the valve will directly bear the impact force brought by the water hammer effect. Therefore, the valve core of the valve is easily damaged by the water hammer effect, which in turn shortens the service life of the valve. Summary of the invention

[0004] In view of the shortcomings of the prior art, the present invention solves the technical problems by adopting a technical solution: a combined high-temperature and high-pressure valve, comprising: Valve body, valve seat, valve core; slow flow mechanism, the slow flow mechanism is used to slow down the flow rate of the fluid, the outer wall of the slow flow mechanism is fixedly connected to the inner wall of the valve body; check mechanism, the check mechanism is used to prevent the fluid from flowing back, the outer wall of the check mechanism is fixedly connected to the inner wall of the valve body away from the slow flow mechanism; the top of the valve body is fixedly connected to the bottom of the valve seat, the top of the valve seat is rotatably connected to a handwheel, the bottom of the handwheel is fixedly connected to a screw rod, the outer wall of the screw rod is threadedly connected to a threaded sleeve, the bottom of the threaded sleeve is fixedly connected to the top of the valve core, the handwheel on the top of the valve seat is turned to make the handwheel drive the screw rod to rotate, and the threaded sleeve drives the valve core to slide downward along the inner wall of the valve body when the screw rod rotates, thereby closing the valve, and vice versa; The flow slowing mechanism includes a filter assembly, a spoiler assembly is fixedly connected to the inner side of the filter assembly, a baffle ring is arranged on the outer side of the spoiler assembly, the outer wall of the baffle ring is fixedly connected to the inner wall of the valve body, a connecting rod is fixedly connected to the side of the spoiler assembly away from the filter assembly, and a baffle plate is fixedly connected to the side of the connecting rod away from the spoiler assembly. During the flow of fluid, the fluid impacts the baffle plate, so that the surface of the baffle plate is separated from the surface of the baffle ring. At this time, the fluid can flow through the gap between the baffle plate and the baffle ring, thereby disrupting the flow direction of the fluid and slowing down the flow rate of the fluid.

[0005] Preferably, the outer wall of the screw rod is rotatably connected to the inner wall of the valve seat, the inner wall of the valve seat is slidably connected to the outer wall of the threaded sleeve, the outer wall of the valve core is slidably connected to the inner wall of the valve body, the bottom of the valve body is fixedly connected with a water inlet pipe, the bottom of the valve body is fixedly connected with a sewage pipe, the outer side of the filter assembly is fixedly connected to the inner wall of the valve body, the outer wall of the baffle plate contacts the outer wall of the baffle ring, and clean water is injected into the valve body through the water inlet pipe. At this time, the water flows in the reverse direction of the valve body. When the water flows through the filter assembly in the reverse direction, the dirt attached to the filter assembly merges with the clean water to form sewage, and then the sewage can be discharged through the sewage pipe.

[0006] Preferably, the filter assembly includes an outer cylinder, an inner cylinder is arranged on the inner side of the outer cylinder, a spoiler block is fixedly connected to the outer wall of the inner cylinder, a filter plate is fixedly connected to the side of the inner cylinder away from the spoiler block, a rotating ring is rotatably connected to the outer wall of the inner cylinder, a spoiler is fixedly connected to the outer wall of the rotating ring, a circular ring is fixedly connected to the outer wall of the spoiler, a cross scraper is fixedly connected to the inner wall of the circular ring, and the fluid can push the spoiler to drive the rotating ring to rotate.

[0007] Preferably, the outer wall of the outer cylinder is fixedly connected to the inner wall of the valve body, the inner wall of the valve body is fixedly connected to the outer wall of the spoiler block, the spoiler block is arranged in a ring along the central axis of the outer cylinder, the outer wall of the ring is rotatably connected to the inner wall of the outer cylinder, the outer wall of the cross scraper is slidably connected to the outer wall of the filter plate, the ring can rotate with the spoiler, and drive the cross scraper to slide along the surface of the filter plate during the rotation, thereby cleaning the filter plate.

[0008] Preferably, the spoiler assembly includes an umbrella-shaped block, the outer wall of the umbrella-shaped block is fixedly connected to a variable diameter coil spring, the end of the variable diameter coil spring away from the umbrella-shaped block is fixedly connected to a fixing ring, the outer wall of the umbrella-shaped block is slidably connected to the inner wall of the inner cylinder, the inner wall of the inner cylinder is fixedly connected to the outer wall of the fixing ring, and a through hole is opened in the wall of the umbrella-shaped block. In the process of the fluid pushing the umbrella-shaped block, part of the kinetic energy of the fluid is converted into the elastic potential energy of the variable diameter coil spring, thereby achieving the purpose of consuming the kinetic energy of the fluid, and can further slow down the flow rate of the fluid.

[0009] Preferably, the check mechanism includes a fixed sleeve, the inner wall of the fixed sleeve is connected to a tension spring, the end of the tension spring away from the fixed sleeve is fixedly connected to a sliding ring, the outer wall of the sliding ring is fixedly connected to a baffle, and the fluid pushes the baffle open during the flow process. At this time, the surface of the baffle is separated from the surface of the fixed sleeve, the sliding ring slides out of the fixed sleeve, and the tension spring is stretched by force, and then the fluid can flow out of the valve body through the guide hole.

[0010] Preferably, a guide hole is opened in the wall of the sliding ring, the outer wall of the sliding ring is slidably connected to the inner wall of the fixed sleeve, the outer wall of the fixed sleeve is fixedly connected to the inner wall of the valve body, one side of the baffle is in contact with the outer wall of the fixed sleeve, and the other side of the baffle is in contact with the inner wall of the valve body; when the valve is closed and the fluid flows back, under the impact force of the water flow and the tension of the tension spring, the surface of the baffle is in contact with the surface of the fixed sleeve, thereby limiting the flow of the fluid.

[0011] The beneficial effects of the present invention are as follows: 1. The present invention provides a slow flow mechanism. During the flow of the fluid, the fluid impacts the baffle plate, causing the surface of the baffle plate to separate from the surface of the baffle ring. At this time, the fluid can flow through the gap between the baffle plate and the baffle ring, thereby disrupting the flow direction of the fluid and further slowing down the flow rate of the fluid. Subsequently, the filter component can filter the fluid and filter out impurities mixed in the fluid.

[0012] 2. The present invention provides a spoiler component. When the spoiler component is deformed, the variable diameter coil spring is compressed and the umbrella block is shaped like an open umbrella, which can increase its contact area with the fluid. In the process of the fluid pushing the umbrella block, part of the kinetic energy of the fluid is converted into the elastic potential energy of the variable diameter coil spring, thereby achieving the purpose of consuming the kinetic energy of the fluid, further slowing down the flow rate of the fluid, and protecting the valve core to prevent the valve core from being damaged by the water hammer effect at the moment the valve is opened.

[0013] 3. The present invention sets a filter assembly, and the fluid passes through the surface of the filter plate. The filter plate can filter impurities mixed in the fluid to prevent large particles of impurities from flowing with the fluid and damaging the valve core. At the same time, a small part of the fluid passes through the gap between the spoiler blocks and pushes the spoiler to drive the rotating ring to rotate. At this time, the circular ring drives the cross scraper to slide along the surface of the filter plate, so that the filter plate can be cleaned to prevent the filter plate surface from being blocked.

[0014] 4. The present invention provides a check mechanism. When the valve is closed and the fluid flows back, under the impact force of the water flow and the tension of the tension spring, the surface of the baffle contacts the surface of the fixed sleeve, restricting the flow of the fluid, thereby protecting the valve core and preventing the valve core from being damaged by the impact force of the water flow.

[0015] 5. The present invention sets a water inlet pipe and a sewage pipe. When it is necessary to clean the dirt inside the valve body, the valve is first opened, and then the sewage pipe is opened. Subsequently, clean water is injected into the valve body through the water inlet pipe. At this time, the water flows in the reverse direction of the valve body. When the water flows through the filter component in the reverse direction, the dirt attached to the filter component merges with the clean water to form sewage, and then the sewage can be discharged through the sewage pipe. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1It is a front view of the present invention; Figure 2 is a cross-sectional view of the present invention; Figure 3 It is a structural schematic diagram of the slow flow mechanism of the present invention; Figure 4 is a schematic diagram of the structure of the filter assembly of the present invention; Figure 5 is a schematic structural diagram of a spoiler assembly of the present invention; Figure 6 It is a structural schematic diagram of the non-return mechanism of the present invention.

[0017] In the figure: 1. valve body; 2. valve seat; 3. hand wheel; 4. screw rod; 5. threaded sleeve; 6. valve core; 7. slow flow mechanism; 8. check mechanism; 9. water inlet pipe; 10. sewage pipe; 71. filter assembly; 72. spoiler assembly; 73. connecting rod; 74. baffle plate; 75. baffle ring; 711. outer cylinder; 712. inner cylinder; 713. spoiler block; 714. rotating ring; 715. spoiler plate; 716. filter plate; 717. circular ring; 718. cross scraper; 721. umbrella block; 722. variable diameter spiral spring; 723. fixed ring; 724. through hole; 81. fixed sleeve; 82. tension spring; 83. sliding ring; 84. baffle plate; 85. guide hole. DETAILED DESCRIPTION

[0018] The present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments. The embodiments of the present invention are provided for the purpose of illustration and description, and are not intended to be exhaustive or to limit the present invention to the disclosed forms. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiments are selected and described in order to better illustrate the principles and practical applications of the present invention, and to enable those of ordinary skill in the art to understand the present invention and thereby design various embodiments with various modifications suitable for specific uses.

[0019] Example: See Figure 1 - Figure 6The present invention provides a technical solution: a combined high-temperature and high-pressure valve, comprising: a valve body 1, a valve seat 2, a valve core 6; a slow-flow mechanism 7, the slow-flow mechanism 7 is used to slow down the flow rate of the fluid, and the outer wall of the slow-flow mechanism 7 is fixedly connected to the inner wall of the valve body 1; a check mechanism 8, the check mechanism 8 is used to prevent the fluid from flowing back, and the outer wall of the check mechanism 8 is fixedly connected to the inner wall of the valve body 1 away from the slow-flow mechanism 7; the top of the valve body 1 is fixedly connected to the bottom of the valve seat 2, the top of the valve seat 2 is rotatably connected to a hand wheel 3, the bottom of the hand wheel 3 is fixedly connected to a screw rod 4, and the outer wall of the screw rod 4 is threadedly connected to a threaded sleeve 5, The bottom of the threaded sleeve 5 is fixedly connected to the top of the valve core 6; the outer wall of the screw rod 4 is rotatably connected to the inner wall of the valve seat 2, the inner wall of the valve seat 2 is slidably connected to the outer wall of the threaded sleeve 5, the outer wall of the valve core 6 is slidably connected to the inner wall of the valve body 1, the bottom of the valve body 1 is fixedly connected with an inlet pipe 9, the bottom of the valve body 1 is fixedly connected with a drain pipe 10, the slow flow mechanism 7 includes a filter assembly 71, the inner side of the filter assembly 71 is fixedly connected with a spoiler assembly 72, the outer side of the spoiler assembly 72 is provided with a baffle ring 75, the outer wall of the baffle ring 75 is fixedly connected to the inner wall of the valve body 1, and the spoiler assembly 72 is away from the filter assembly 71 One side of the valve body 1 is fixedly connected with a connecting rod 73, and the side of the connecting rod 73 away from the spoiler assembly 72 is fixedly connected with a baffle plate 74. The outer side of the filter assembly 71 is fixedly connected to the inner wall of the valve body 1, and the outer wall of the baffle plate 74 contacts the outer wall of the baffle ring 75. When in use, the hand wheel 3 on the top of the valve seat 2 is turned to make the hand wheel 3 drive the screw rod 4 to rotate. When the screw rod 4 rotates, the threaded sleeve 5 drives the valve core 6 to slide downward along the inner wall of the valve body 1, thereby closing the valve, and vice versa. When the valve is opened, the fluid enters from the side where the slow flow mechanism 7 is installed. After the flow velocity is slowed down by the slow flow mechanism 7, The fluid flows out from the side where the check mechanism 8 is installed. The check mechanism 8 can prevent the fluid from flowing back and impacting the valve core 6 when the valve is closed. During the flow of the fluid, the fluid impacts the baffle plate 74, so that the surface of the baffle plate 74 is separated from the surface of the baffle ring 75. At this time, the fluid can flow through the gap between the baffle plate 74 and the baffle ring 75, thereby disrupting the flow direction of the fluid and slowing down the flow rate of the fluid. At the same time, the baffle plate 74 pushes the spoiler component 72 to deform through the connecting rod 73, which can further slow down the flow rate of the water flow. Then the filter component 71 can filter the fluid and filter out the impurities mixed in the fluid. When it is necessary to clean the dirt inside the valve body 1, first open the valve, then open the drain pipe 10, and then inject clean water into the valve body 1 through the water inlet pipe 9. At this time, the water flows in the reverse direction of the valve body 1. When the water flows through the filter component 71 in the reverse direction, the dirt attached to the filter component 71 merges with the clean water to form sewage, and then the sewage can be discharged through the drain pipe 10.

[0020] The filter assembly 71 includes an outer cylinder 711, an inner cylinder 712 is arranged on the inner side of the outer cylinder 711, a spoiler block 713 is fixedly connected to the outer wall of the inner cylinder 712, a filter plate 716 is fixedly connected to the side of the inner cylinder 712 away from the spoiler block 713, a rotating ring 714 is rotatably connected to the outer wall of the inner cylinder 712, a spoiler plate 715 is fixedly connected to the outer wall of the rotating ring 714, a circular ring 717 is fixedly connected to the outer wall of the spoiler plate 715, a cross scraper 718 is fixedly connected to the inner wall of the circular ring 717, the outer wall of the outer cylinder 711 is fixedly connected to the inner wall of the valve body 1, the inner wall of the valve body 1 is fixedly connected to the outer wall of the spoiler block 713, the spoiler blocks 713 are arranged in a ring array along the central axis of the outer cylinder 711, and the outer wall of the circular ring 717 is rotatably connected to the inner wall of the outer cylinder 711. The outer wall of the cross scraper 718 is slidably connected with the outer wall of the filter plate 716. After the fluid passes through the spoiler assembly 72, it passes through the surface of the filter plate 716. The filter plate 716 can filter the impurities mixed in the fluid to prevent large particles of impurities from flowing with the fluid and damaging the valve core 6; at the same time, a small part of the fluid passes through the gap formed between the spoiler blocks 713 and flows between the outer cylinder 711 and the inner cylinder 712. In this process, the fluid pushes the spoiler plate 715 to drive the rotating ring 714 to rotate. At this time, the ring 717 rotates with the spoiler plate 715, and drives the cross scraper 718 to slide along the surface of the filter plate 716 during the rotation, thereby cleaning the filter plate 716 to prevent the surface of the filter plate 716 from being blocked.

[0021] The spoiler assembly 72 includes an umbrella-shaped block 721, the outer wall of the umbrella-shaped block 721 is fixedly connected to a variable diameter coil spring 722, and one end of the variable diameter coil spring 722 away from the umbrella-shaped block 721 is fixedly connected to a fixing ring 723, the outer wall of the umbrella-shaped block 721 is slidably connected to the inner wall of the inner cylinder 712, and the inner wall of the inner cylinder 712 is fixedly connected to the outer wall of the fixing ring 723, and a through hole 724 is opened in the wall of the umbrella-shaped block 721. When the spoiler assembly 72 is deformed, the baffle plate 74 pushes the umbrella-shaped block 721 toward the fixing ring through the connecting rod 73. 723 approaches, at this time, the variable diameter coil spring 722 is compressed, and the fluid passes through the through hole 724 on the surface of the umbrella block 721. The umbrella block 721 is shaped like an open umbrella, which can increase its contact area with the fluid. In the process of the fluid pushing the umbrella block 721, part of the kinetic energy of the fluid is converted into the elastic potential energy of the variable diameter coil spring 722, thereby achieving the purpose of consuming the kinetic energy of the fluid, which can further slow down the flow rate of the fluid and protect the valve core 6 to prevent the valve core 6 from being damaged by the water hammer effect at the moment the valve is opened.

[0022] The check mechanism 8 includes a fixed sleeve 81, the inner wall of which is connected to a tension spring 82, one end of which is away from the fixed sleeve 81 and fixedly connected to a sliding ring 83, the outer wall of which is fixedly connected to a baffle 84, a guide hole 85 is provided in the wall of the sliding ring 83, the outer wall of the sliding ring 83 is slidably connected to the inner wall of the fixed sleeve 81, the outer wall of the fixed sleeve 81 is fixedly connected to the inner wall of the valve body 1, one side of the baffle 84 is in contact with the outer wall of the fixed sleeve 81, and the other side of the baffle 84 is in contact with the inner wall of the valve body 1, During the flow of the fluid, the baffle 84 is pushed open. At this time, the surface of the baffle 84 is separated from the surface of the fixed sleeve 81, the sliding ring 83 slides out of the fixed sleeve 81, and the tension spring 82 is stretched. Then the fluid can flow out of the valve body 1 through the guide hole 85; when the valve is closed and the fluid flows back, under the impact force of the water flow and the pulling force of the tension spring 82, the surface of the baffle 84 contacts the surface of the fixed sleeve 81, restricting the flow of the fluid, thereby protecting the valve core 6 and preventing the valve core 6 from being damaged by the impact force of the water flow.

[0023] Working principle: When in use, the hand wheel 3 on the top of the valve seat 2 is turned, so that the hand wheel 3 drives the screw rod 4 to rotate, and the threaded sleeve 5 drives the valve core 6 to slide downward along the inner wall of the valve body 1 when the screw rod 4 rotates, thereby closing the valve, and vice versa; When the valve is opened, the fluid enters from the side where the slow flow mechanism 7 is installed, and after the flow velocity is slowed down by the slow flow mechanism 7, it flows out from the side where the check mechanism 8 is installed. The check mechanism 8 can prevent the fluid from flowing back and impacting the valve core 6 when the valve is closed; During the flow of the fluid, the fluid impacts the baffle plate 74, causing the surface of the baffle plate 74 to separate from the surface of the baffle ring 75. At this time, the fluid can flow through the gap between the baffle plate 74 and the baffle ring 75, thereby disrupting the flow direction of the fluid and slowing down the flow rate of the fluid. At the same time, the baffle plate 74 pushes the spoiler assembly 72 to deform through the connecting rod 73, which can further slow down the flow rate of the water flow. Then, the filter assembly 71 can filter the fluid to filter out impurities mixed in the fluid. When the spoiler assembly 72 is deformed, the baffle plate 74 pushes the umbrella block 721 toward the fixing ring 723 through the connecting rod 73. At this time, the variable diameter coil spring 722 is compressed, and the fluid passes through the through hole 724 on the surface of the umbrella block 721. The umbrella block 721 is in the shape of an open umbrella, which can increase the contact area with the fluid. In the process of the fluid pushing the umbrella block 721, part of the kinetic energy of the fluid is converted into the elastic potential energy of the variable diameter coil spring 722, thereby achieving the purpose of consuming the kinetic energy of the fluid, further slowing down the flow rate of the fluid, and protecting the valve core 6 to prevent the valve core 6 from being damaged by the water hammer effect at the moment the valve is opened; After the fluid passes through the spoiler assembly 72, it passes through the surface of the filter plate 716. The filter plate 716 can filter the impurities mixed in the fluid to prevent large particles of impurities from flowing with the fluid and damaging the valve core 6; at the same time, a small part of the fluid passes through the gap formed between the spoiler blocks 713 and flows between the outer cylinder 711 and the inner cylinder 712. In this process, the fluid pushes the spoiler plate 715 to drive the rotating ring 714 to rotate. At this time, the ring 717 rotates with the spoiler plate 715, and drives the cross scraper 718 to slide along the surface of the filter plate 716 during the rotation, thereby cleaning the filter plate 716 to prevent the surface of the filter plate 716 from being blocked; Then the fluid continues to flow, and pushes the baffle 84 open during the flow process. At this time, the surface of the baffle 84 is separated from the surface of the fixed sleeve 81, and the sliding ring 83 slides out of the fixed sleeve 81. At the same time, the tension spring 82 is stretched by force, and then the fluid can flow out of the valve body 1 through the guide hole 85; When the valve is closed and the fluid flows backward, under the impact force of the water flow and the tension of the extension spring 82, the surface of the baffle 84 contacts the surface of the fixing sleeve 81, restricting the flow of the fluid, thereby protecting the valve core 6 and preventing the valve core 6 from being damaged by the impact force of the water flow; When it is necessary to clean the dirt inside the valve body 1, first open the valve, then open the drain pipe 10, and then inject clean water into the valve body 1 through the water inlet pipe 9. At this time, the water flows in the reverse direction of the valve body 1. When the water flows through the filter component 71 in the reverse direction, the dirt attached to the filter component 71 merges with the clean water to form sewage, and then the sewage can be discharged through the drain pipe 10.

[0024] Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field and related fields without creative work should fall within the scope of protection of the present invention. The structures, devices and operating methods not specifically described and explained in the present invention are implemented according to the conventional means in the field unless otherwise specified and limited.

Claims

1. A combined high-temperature and high-pressure valve, comprising: Valve body (1), valve seat (2), valve core (6); A flow-slowing mechanism (7), the flow-slowing mechanism (7) being used to slow down the flow velocity of the fluid, the outer wall of the flow-slowing mechanism (7) being fixedly connected to the inner wall of the valve body (1); a check mechanism (8), the check mechanism (8) being used to prevent backflow of the fluid, the outer wall of the check mechanism (8) being fixedly connected to the inner wall of the valve body (1) on a side away from the slow-flow mechanism (7); The invention is characterized in that: the top of the valve body (1) is fixedly connected to the bottom of the valve seat (2); the top of the valve seat (2) is rotatably connected to a hand wheel (3); the bottom of the hand wheel (3) is fixedly connected to a screw rod (4); the outer wall of the screw rod (4) is threadedly connected to a threaded sleeve (5); the bottom of the threaded sleeve (5) is fixedly connected to the top of the valve core (6); The flow slowing mechanism (7) comprises a filter assembly (71), a spoiler assembly (72) is fixedly connected to the inner side of the filter assembly (71), a baffle ring (75) is arranged on the outer side of the spoiler assembly (72), the outer wall of the baffle ring (75) is fixedly connected to the inner wall of the valve body (1), a connecting rod (73) is fixedly connected to the side of the spoiler assembly (72) away from the filter assembly (71), and a baffle plate (74) is fixedly connected to the side of the connecting rod (73) away from the spoiler assembly (72).

2. A combined high-temperature and high-pressure valve according to claim 1, characterized in that: The outer wall of the screw rod (4) is rotatably connected to the inner wall of the valve seat (2), the inner wall of the valve seat (2) is slidably connected to the outer wall of the threaded sleeve (5), the outer wall of the valve core (6) is slidably connected to the inner wall of the valve body (1), the bottom of the valve body (1) is fixedly connected to a water inlet pipe (9), and the bottom of the valve body (1) is fixedly connected to a sewage discharge pipe (10).

3. A combined high-temperature and high-pressure valve according to claim 1, characterized in that: The outer side of the filter assembly (71) is fixedly connected to the inner wall of the valve body (1), and the outer wall of the baffle plate (74) is in contact with the outer wall of the baffle ring (75).

4. A combined high-temperature and high-pressure valve according to claim 1, characterized in that: The filter assembly (71) comprises an outer cylinder (711), an inner cylinder (712) is arranged on the inner side of the outer cylinder (711), a spoiler block (713) is fixedly connected to the outer wall of the inner cylinder (712), a filter plate (716) is fixedly connected to the side of the inner cylinder (712) away from the spoiler block (713), a rotating ring (714) is rotatably connected to the outer wall of the inner cylinder (712), a spoiler plate (715) is fixedly connected to the outer wall of the rotating ring (714), a circular ring (717) is fixedly connected to the outer wall of the spoiler plate (715), and a cross scraper plate (718) is fixedly connected to the inner wall of the circular ring (717).

5. A combined high-temperature and high-pressure valve according to claim 4, characterized in that: The outer wall of the outer cylinder (711) is fixedly connected to the inner wall of the valve body (1), the inner wall of the valve body (1) is fixedly connected to the outer wall of the spoiler block (713), the spoiler block (713) is arranged in a ring array along the central axis of the outer cylinder (711), the outer wall of the ring (717) is rotatably connected to the inner wall of the outer cylinder (711), and the outer wall of the cross scraper (718) is slidably connected to the outer wall of the filter plate (716).

6. The combined high-temperature and high-pressure valve according to claim 1, characterized in that: The spoiler assembly (72) comprises an umbrella-shaped block (721), the outer wall of the umbrella-shaped block (721) being fixedly connected to a variable diameter coil spring (722), one end of the variable diameter coil spring (722) away from the umbrella-shaped block (721) being fixedly connected to a fixing ring (723), the outer wall of the umbrella-shaped block (721) being slidably connected to the inner wall of the inner cylinder (712), the inner wall of the inner cylinder (712) being fixedly connected to the outer wall of the fixing ring (723), and a through hole (724) being provided in the wall of the umbrella-shaped block (721).

7. The combined high-temperature and high-pressure valve according to claim 1, characterized in that: The non-return mechanism (8) comprises a fixed sleeve (81), the inner wall of the fixed sleeve (81) is connected to a tension spring (82), one end of the tension spring (82) away from the fixed sleeve (81) is fixedly connected to a sliding ring (83), and the outer wall of the sliding ring (83) is fixedly connected to a baffle (84).

8. A combined high-temperature and high-pressure valve according to claim 7, characterized in that: A flow guide hole (85) is provided in the wall of the sliding ring (83); the outer wall of the sliding ring (83) is slidably connected to the inner wall of the fixed sleeve (81); the outer wall of the fixed sleeve (81) is fixedly connected to the inner wall of the valve body (1); one side of the baffle plate (84) is in contact with the outer wall of the fixed sleeve (81); and the other side of the baffle plate (84) is in contact with the inner wall of the valve body (1).

Images