A high temperature and wear resistant ball valve

Abstract

The present application relates to the field of valve bodies, and in particular to a high temperature and wear-resistant ball valve, including a valve seat, a valve stem, and a plurality of heat dissipation rings. The surface of the valve seat is provided with a starting cavity for the valve stem to rotate, the end of the valve stem protruding from the valve seat is provided for the actuator to be installed, and a plurality of heat dissipation rings are connected to the surface of the valve seat at intervals, the arrangement direction of the heat dissipation rings and the axis of the valve stem are parallel to each other, and the inner wall of the heat dissipation ring surrounds the outer peripheral surface of the valve stem. The setting of the heat dissipation ring in the present application enables the valve seat to fully contact with the air and exchange heat, thereby cooling the ball valve, making it difficult for the valve seat to transfer heat energy to the actuator, ensuring that the actuator is not easily damaged by operating at high temperature for a long time, thereby extending the service life of the ball valve.

Description

Technical Field

[0001] The present application relates to the field of valve bodies, and in particular to a high temperature resistant and wear resistant ball valve. Background Art

[0002] A ball valve is a valve that controls the flow of fluid by rotating the valve stem to drive the ball to rotate. As petrochemical equipment continues to develop towards higher parameters, stringent requirements are also placed on ball valves. Ball valves are required to have characteristics such as high temperature resistance, wear resistance, erosion resistance, anti-scaling, quick shut-off, good sealing performance and high reliability.

[0003] When the ball valve is used under the harsh working conditions of coal chemical phase flow, the ball valve drives the valve stem to rotate through the actuator, thereby driving the ball to rotate, to achieve precise on-off of the fluid; however, the temperature of the fluid passing through the ball valve is high, and the fluid transfers heat energy to the actuator through the ball valve. The actuator is prone to wear and tear when running under high temperature for a long time, thereby shortening the service life of the ball valve. Summary of the invention

[0004] In order to improve the problem that the actuator is easily worn out when operating under high temperature for a long time, the present application provides a high temperature resistant and wear resistant ball valve.

[0005] The present application provides a high temperature and wear resistant ball valve, which adopts the following technical solution:

[0006] A high-temperature and wear-resistant ball valve comprises a valve seat, a valve stem and a plurality of heat dissipation rings. The surface of the valve seat is provided with a starting cavity for the valve stem to rotate. The end of the valve stem protruding from the valve seat is provided for the installation of an actuator. A plurality of heat dissipation rings are connected to the surface of the valve seat at intervals. The arrangement direction of the heat dissipation rings is parallel to the axis of the valve stem, and the inner ring wall of the heat dissipation ring surrounds the outer circumference of the valve stem.

[0007] By adopting the above technical solution, one end of the valve stem rotates on the inner wall of the starting chamber, and the other end of the valve stem is installed on the actuator. The actuator controls the valve stem to rotate on the inner wall of the starting chamber. Multiple heat dissipation rings are connected to the surface of the valve seat at intervals. The arrangement direction of the heat dissipation rings and the valve stem axis are parallel to each other. The inner ring wall of the heat dissipation ring surrounds the outer circumference of the valve stem. The heat dissipation ring increases the contact area between the valve seat and the air, so that the valve seat and the air are fully in contact and heat exchange is carried out, thereby achieving cooling of the ball valve, making it difficult for the valve seat to transfer heat energy to the actuator, ensuring that the actuator is not easily damaged by operating in a high temperature state for a long time, thereby extending the service life of the ball valve.

[0008] Optionally, the valve seat is connected to a sewage and exhaust assembly, which includes a sewage pipe, an exhaust pipe, a sealing cover 1 and a sealing cover 2. The sewage pipe end and the exhaust pipe end are connected to the valve seat surface at intervals, and the sewage pipe inner cavity and the exhaust pipe inner cavity are connected to the valve seat inner cavity. The sealing cover 1 is threadedly fixed to the exhaust pipe end and closes the exhaust pipe inner cavity. The sealing cover 2 is threadedly fixed to the sewage pipe end and closes the sewage pipe inner cavity.

[0009] By adopting the above technical scheme, the inner cavity of the exhaust pipe and the inner cavity of the sewage pipe are connected to the inner cavity of the valve seat. The exhaust pipe is used to discharge the air in the inner cavity of the valve seat, and the sewage pipe is used to discharge the dirt in the valve seat, thereby realizing directional cleaning of the inner cavity of the valve seat. At the same time, the first sealing cover is threadedly fixed to the end of the exhaust pipe and closes the inner cavity of the exhaust pipe, and the second sealing cover is threadedly fixed to the end of the sewage pipe and closes the inner cavity of the sewage pipe, thereby realizing directional opening and closing of the exhaust pipe and the sewage pipe, thereby improving the simplicity of cleaning the valve seat.

[0010] Optionally, both ends of the valve seat are connected with lifting rings.

[0011] By adopting the above technical solution, the lifting rings at both ends of the valve seat allow the staff to hook and lift the valve seat, making it convenient for the staff to move the ball valve, thereby improving the convenience of installing the ball valve.

[0012] Optionally, cover plates are embedded at both ends of the valve seat, and the outer peripheral surface of the cover plate is pressed against the inner cavity wall of the valve seat to form a seal.

[0013] By adopting the above technical solution, the two cover plates are embedded in the two ends of the valve seat cavity one by one, and the outer peripheral surface of the cover plate is pressed against the inner wall of the valve seat to form a seal, making it difficult for external impurities to enter the valve seat cavity, thereby ensuring the stability of the ball valve during storage and transportation.

[0014] Optionally, the sealing cover is connected to a warning component, which includes an elastic member and a warning piston. A warning cavity is opened on the surface of the sealing cover for the warning piston to slide, and the warning cavity penetrates the sealing cover and is connected to the inner cavity of the sealing cover. One end of the elastic member in the elastic force direction is connected to the surface of the warning piston, and the other end of the elastic member in the elastic force direction is connected to the inner wall of the warning cavity. The elastic member has elastic force to drive the warning piston to slide toward the direction close to the inner cavity of the sealing cover, and the end face of the warning piston tends to be flush with the surface of the sealing cover.

[0015] By adopting the above technical scheme, the elastic force of the elastic member drives the warning piston to slide in the direction close to the sealing cover, and the end face of the warning piston is flush with the surface of the sealing cover. When the air pressure in the inner cavity of the valve seat increases, the air pressure in the inner cavity of the valve seat is greater than the external standard atmospheric pressure. The air in the valve seat enters the inner cavity of the exhaust pipe and impacts the surface of the warning piston. The warning piston slides along the inner wall of the warning cavity away from the inner cavity of the sealing cover under the air pressure in the exhaust pipe. The end of the warning piston protrudes from the end face of the sealing cover, thereby warning the staff that the air pressure in the valve seat is overloaded, thereby improving the safety of using the high temperature and wear-resistant ball valve.

[0016] Optionally, the warning component also includes a contact switch and a warning horn, the contact switch is connected to an inner wall of the sealing cover, the warning horn is connected to a surface of the sealing cover, the contact switch and the warning horn are electrically connected, and when the warning piston slides in a direction away from an inner cavity of the sealing cover, the contact switch abuts against the warning piston and is turned on, and the warning horn is energized and makes a sound.

[0017] By adopting the above technical solution, when the air pressure in the valve seat is overloaded, the air in the inner cavity of the valve seat enters the air inlet pipe and impacts the surface of the warning piston, driving the warning piston to overcome the elastic force of the elastic member and slide in a direction away from the sealing cover. The contact switch abuts the warning piston and is turned on, and the warning horn is energized and makes a sound, thereby alerting the staff to inspect the ball valve in time, thereby improving the safety of the use of the ball valve.

[0018] Optionally, the sealing cover is connected to a venting assembly, which includes a sealing plate and a connecting rod. A slideway is provided on the surface of the sealing cover for the sealing plate to slide, and the sliding direction of the sealing plate and the sliding direction of the warning piston are perpendicular to each other. A venting cavity is provided on the inner wall of the slideway, and the venting cavity passes through an outer wall of the sealing cover and is connected to an inner cavity of the sealing cover. The sealing plate surface is pressed against the inner wall of the slideway and closes the venting cavity. One end of the connecting rod is rotatably connected to the sealing plate surface, and the other end of the connecting rod is rotatably connected to the surface of the warning piston. When the end of the warning piston protrudes from an end face of the sealing cover, the connecting rod drives the sealing plate to slide in a direction away from the venting cavity, and the sealing effect of the sealing plate on the venting cavity disappears.

[0019] By adopting the above technical scheme, the sealing plate surface is pressed against the inner wall of the slideway and the air release cavity is closed, so that external impurities are not easy to enter the valve seat cavity through the air release cavity, thereby ensuring the stability of the ball valve operation; when the warning piston overcomes the elastic force of the elastic member and slides in a direction away from the sealing cover, one end of the connecting rod is rotatably connected to the sealing plate surface, and the other end of the connecting rod is rotatably connected to the surface of the warning piston. The connecting rod receives the power of the warning piston and drives the sealing plate to slide in a direction away from the air release cavity. The sealing effect of the sealing plate on the air release cavity disappears, and the air in the exhaust pipe is discharged through the air release cavity, thereby reducing the pressure in the valve seat cavity, making the valve seat cavity wall not easy to crack due to excessive air pressure, thereby extending the service life of the ball valve.

[0020] Optionally, the air release assembly also includes an elastic member 2 and an air outlet pipe, wherein the air outlet pipe is slidably connected to the inner wall of the air release chamber, the inner cavity of the air outlet pipe is connected to the air release chamber, and the sliding direction of the air outlet pipe and the sliding direction of the warning piston are parallel to each other, one end of the elastic member 2 in the elastic force direction is connected to the pipe surface of the air outlet pipe, and the other end of the elastic member 2 in the elastic force direction is connected to the inner wall of the air release chamber, the elastic member 2 has the elastic force to drive the air outlet pipe to slide in the direction away from the air release chamber, and the end of the air outlet pipe has a tendency to protrude from the surface of a sealing cover.

[0021] By adopting the above technical solution, when the sealing effect of the sealing plate disappears away from the air release cavity, the elastic force of the second elastic member drives the air outlet pipe to slide in the direction away from the air release cavity, and the end of the air outlet pipe protrudes from the surface of the sealing cover and abuts against the surface of the sealing plate, and the air in the exhaust pipe is discharged through the air outlet pipe, thereby realizing the pressure relief of the inner cavity of the valve seat; at the same time, the end face of the exhaust pipe protruding from the sealing cover abuts against the surface of the sealing plate to form a limit, so that the staff can find the faulty ball valve in time and repair it, thereby improving the inspection and maintenance efficiency of the ball valve.

[0022] Optionally, the deflation assembly also includes an opening and closing plate and an elastic member three, the inner wall of the air outlet pipe is provided with a rotating chamber for the opening and closing plate to rotate, one end of the elastic member three in the elastic force direction is connected to the rotating shaft of the opening and closing plate, and the other end of the elastic member three in the elastic force direction is connected to the inner wall of the rotating chamber, the elastic member three has elastic force to drive the opening and closing plate to rotate toward the direction close to the rotating chamber, and the opening and closing plate surface is pressed against the inner wall of the rotating chamber and closes the inner chamber of the air outlet pipe.

[0023] By adopting the above technical scheme, the three elastic forces of the elastic member drive the opening and closing plate to rotate in the direction close to the rotating chamber, and the opening and closing plate surface presses against the inner wall of the rotating chamber and closes the inner cavity of the air outlet pipe, so that external impurities are not easy to enter the inner cavity of the valve seat through the inner cavity of the air outlet pipe, thereby ensuring the stability of the operation of the ball valve; when the air pressure in the valve seat exceeds the load, the air in the valve seat enters the inner cavity of the air outlet pipe through the exhaust pipe and impacts the opening and closing plate surface, and the opening and closing plate is overcome by the air pressure. The three elastic forces of the elastic member rotate in the direction away from the rotating chamber, the pressing force between the opening and closing plate surface and the inner wall of the rotating chamber disappears, and the air in the air outlet pipe is discharged from the rotating chamber, realizing directional pressure relief of the valve seat.

[0024] Optionally, the deflation assembly also includes a connecting rope and a push-pull piston. A push-pull cavity for the push-pull piston to slide is opened on one surface of the sealing cover, and the push-pull cavity is connected to the deflation cavity. One end of the connecting rope is connected to the surface of the air outlet pipe, and the other end of the connecting rope is connected to the surface of the push-pull piston. The end of the push-pull piston protruding from the sealing cover is for the user to hold.

[0025] By adopting the above technical scheme, when the staff completes the fault inspection and repair of the ball valve, the end of the push-pull piston protruding from the sealing cover provides a force point for the staff. The staff holds the end of the push-pull piston protruding from the sealing cover and drives the push-pull piston to slide along the inner wall of the push-pull cavity. The connecting rope receives the power of the push-pull piston and drives the air outlet pipe to slide in the direction close to the sealing cover. The end face of the air outlet pipe is flush with the inner wall of the slide. The abutment effect of the air outlet pipe on the sealing plate disappears. The elastic force of the elastic part drives the warning piston to slide in the direction close to the exhaust pipe. The end face of the warning piston is flush with the surface of the sealing cover. The connecting rod receives the power of the warning piston and pushes the sealing plate along the inner wall of the slide to approach the venting cavity. The sealing plate surface abuts against the inner wall of the slide and closes the venting cavity, thereby realizing directional opening and closing of the venting cavity.

[0026] In summary, the present application includes at least one of the following beneficial technical effects:

[0027] 1. The heat dissipation ring is set to make the valve seat fully contact with the air and exchange heat, so as to cool the ball valve and prevent the valve seat from transferring heat to the actuator, thus ensuring that the actuator is not easily damaged by operating at high temperature for a long time, thereby extending the service life of the ball valve;

[0028] 2. The sewage pipe, the exhaust pipe, the sealing cover 1 and the sealing cover 2 are arranged. The sealing cover 1 is screwed and fixed on the end of the exhaust pipe and closes the inner cavity of the exhaust pipe. The sealing cover 2 is screwed and fixed on the end of the sewage pipe and closes the inner cavity of the sewage pipe, so as to realize the directional opening and closing of the exhaust pipe and the sewage pipe, thereby improving the simplicity of cleaning the valve seat;

[0029] 3. The setting of the lifting ring makes it convenient for the staff to move the ball valve, thereby improving the convenience of installing the ball valve. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 It is a schematic diagram of the overall structure in Example 1 of the present application.

[0031] Figure 2 It is a schematic diagram of the overall structure in Example 1 of the present application, mainly showing the sewage pipe and sealing cover 2.

[0032] Figure 3 It is a schematic diagram of the overall structure in Example 2 of the present application.

[0033] Figure 4 It is a partial cross-sectional view in Example 2 of the present application, mainly showing the warning component.

[0034] Figure 5 It is a partial cross-sectional view in Example 2 of the present application, mainly showing the deflation component.

[0035] Figure 6 It is a schematic diagram of the overall structure of the opening and closing plate and the elastic member three in Example 2 of the present application.

[0036] Explanation of the accompanying drawings: 1. valve seat; 11. starting chamber; 2. valve stem; 3. heat dissipation ring; 4. cover plate; 6. sewage and exhaust assembly; 61. sewage pipe; 62. exhaust pipe; 63. sealing cover one; 631. warning chamber; 632. slide; 633. deflation chamber; 634. avoidance chamber; 635. push-pull chamber; 64. sealing cover two; 7. lifting ring; 8. warning assembly; 81. elastic part one; 82. warning piston; 83. contact switch; 84. warning horn; 9. deflation assembly; 91. sealing plate; 92. connecting rod; 93. elastic part two; 94. exhaust pipe; 941. rotating chamber; 95. opening and closing plate; 96. elastic part three; 97. connecting rope; 98. push-pull piston. DETAILED DESCRIPTION

[0037] The following is combined with Figure 1-6 This application is described in further detail.

[0038] The embodiment of the present application discloses a high temperature resistant and wear resistant ball valve.

[0039] Example 1

[0040] Reference Figure 1 A high temperature and wear-resistant ball valve comprises a valve seat 1, a valve stem 2 and a plurality of heat dissipation rings 3. The bottom of the valve seat 1 abuts the ground to form a support. A liquid inlet channel is provided on the end face of the valve seat 1. The liquid inlet channel runs through both ends of the valve seat 1. The inner wall of the liquid inlet channel is subjected to a special hardening treatment by ultrasonic spraying to form a coating, thereby improving the abrasion resistance and wear resistance of the valve seat 1, so that the ball valve can meet various harsh working conditions. Cover plates 4 are embedded at both ends of the length direction of the liquid inlet channel. The material of the cover plate 4 can be rubber or plastic. In the embodiment of the present application, the material of the cover plate 4 is rubber, which has a certain deformation ability. The outer peripheral surface of the cover plate 4 abuts against the inner wall of the liquid inlet channel to form a seal, thereby ensuring that foreign impurities are not easy to enter the liquid inlet channel during storage and transportation of the ball valve, thereby improving the storage stability of the ball valve.

[0041] Reference Figure 1 A starting chamber 11 is provided on the top surface of the valve seat 1 for the end of the valve stem 2 to rotate. The starting chamber 11 is connected to the liquid inlet channel. A valve ball is fixed to the end of the valve stem 2 facing the liquid inlet channel. When the valve stem 2 rotates, the valve ball is driven to rotate on the inner wall of the liquid inlet channel and control the on-off of the liquid inlet channel. The end of the valve stem 2 protruding from the valve seat 1 is for the installation of the actuator, and the actuator can control the valve stem 2 to rotate in the starting chamber 11.

[0042] Reference Figure 1A plurality of heat dissipation rings 3 are fixed at intervals on the end face of the valve seat 1 close to the actuator. The arrangement direction of the heat dissipation rings 3 is parallel to the axis of the valve stem 2. The axis of the heat dissipation ring 3 coincides with the axis of the valve stem 2. The inner wall of the heat dissipation ring 3 surrounds the outer peripheral surface of the valve stem 2, thereby increasing the contact area between the ball valve and the air. The heat sink is in full contact with the air and performs heat exchange, thereby achieving cooling of the valve seat 1 and preventing the actuator from being damaged due to operation at high temperature, thereby improving the high temperature resistance of the ball valve and extending the service life of the ball valve.

[0043] Reference Figure 1 and Figure 2 The valve seat 1 is equipped with a sewage exhaust assembly 6, which can exhaust air and dirt in the liquid inlet flow channel. The sewage exhaust assembly 6 includes a sewage pipe 61, an exhaust pipe 62, a sealing cover 1 63 and a sealing cover 2 64. The ends of the sewage pipe 61 and the exhaust pipe 62 are connected to the surface of the valve seat 1 at intervals. The inner cavities of the sewage pipe 61 and the exhaust pipe 62 are both connected to the liquid inlet flow channel. The exhaust pipe 62 is close to the valve stem 2, and the sewage pipe 61 is far away from the valve stem 2. The sewage pipe 61 is used to discharge dirt in the liquid inlet flow channel, and the exhaust pipe 62 is used to discharge air in the liquid inlet flow channel. The inner cavity wall of the sealing cover 1 63 is screwed and fixed on the outer circumferential surface of the exhaust pipe 62 and closes the inner cavity of the exhaust pipe 62. The inner cavity wall of the sealing cover 2 64 is screwed and fixed on the outer circumferential surface of the sewage pipe 61 and closes the inner cavity of the sewage pipe 61, so as to realize the directional opening and closing of the exhaust pipe 62 and the sewage pipe 61, thereby facilitating the staff to clean the valve seat 1.

[0044] Reference Figure 1 Both ends of the valve seat 1 in the length direction are fixed with lifting rings 7 by bolts. The lifting rings 7 are provided for the staff to hook and provide force application points, so as to facilitate the transportation and installation of the valve seat 1 by the staff.

[0045] The implementation principle of a high-temperature and wear-resistant ball valve in Example 1 of the present application is as follows: one end of the valve stem 2 is fixed on the valve ball, and the other end of the valve stem 2 is installed on the actuator. The actuator controls the valve stem 2 to rotate on the inner wall of the starting chamber 11. Multiple heat dissipation rings 3 are connected to the surface of the valve seat 1 at intervals. The arrangement direction of the heat dissipation ring 3 and the axis of the valve stem 2 are parallel to each other. The inner ring wall of the heat dissipation ring 3 surrounds the outer circumference of the valve stem 2. The heat dissipation ring 3 increases the contact area between the valve seat 1 and the air, so that the valve seat 1 is in full contact with the air and performs heat exchange, thereby cooling the ball valve and making it difficult for the valve seat 1 to transfer heat energy to the actuator, thereby ensuring that the actuator is not easily damaged by operating in a high-temperature state for a long time, thereby extending the service life of the ball valve.

[0046] Example 2

[0047] Reference Figure 3 and Figure 4, the difference between Example 2 and Example 1 is that the sealing cover 63 is equipped with a warning component 8, and the warning component 8 can detect the air pressure change in the liquid inlet flow channel. The warning component 8 includes an elastic member 81, a warning piston 82, a contact switch 83 and a warning horn 84. The elastic member 81 can be a compression spring or a tension spring. In the embodiment of the present application, the elastic member 81 is a compression spring with a certain deformation ability. The material of the warning piston 82 can be rubber or silicone. In the embodiment of the present application, the material of the warning piston 82 is rubber with a certain deformation ability. The end face of the sealing cover 63 is provided with a warning cavity 631 for the sliding of the warning piston 82. The sliding direction of the warning piston 82 is parallel to the axis of the valve stem 2. One end of the elastic member 81 in the elastic direction is fixed to the inner wall of the warning cavity 631, and the other end of the elastic member 81 in the elastic direction is fixed to the surface of the warning piston 82. The elastic member 81 has a tendency to elastically drive the warning piston 82 to slide in the direction close to the exhaust pipe 62, and the end face of the warning piston 82 is flush with the end face of the sealing cover 63.

[0048] Reference Figure 3 and Figure 4 The contact switch 83 is fixed on the inner wall of the sealing cover 63, the trigger point of the contact switch 83 faces the surface of the warning piston 82, and the warning horn 84 is fixed on the end face of the sealing cover 63 by bolts. The warning horn 84 is electrically connected to the contact switch 83. When the air pressure in the liquid inlet channel is overloaded, the gas in the liquid inlet channel impacts the surface of the warning piston 82 through the inner cavity of the exhaust pipe 62. The warning piston 82 overcomes the elastic force of the elastic member 81 under the air pressure and slides along the inner wall of the warning cavity 631 toward the contact switch 83. The warning piston 82 abuts against the contact switch 83 and is turned on. The warning horn 84 is energized and makes a sound, thereby warning the staff to inspect the ball valve in time, thereby improving the safety of the ball valve.

[0049] Reference Figure 5 and Figure 6The sealing cover 63 is equipped with a deflation assembly 9, which can discharge the air in the exhaust pipe 62. The deflation assembly 9 includes a sealing plate 91, a connecting rod 92, an elastic member 93, an air outlet pipe 94, an opening and closing plate 95, an elastic member 96, a connecting rope 97 and a push-pull piston 98. The end surface of the sealing cover 63 is provided with a slideway 632 for the sealing plate 91 to slide. The sliding direction of the sealing plate 91 and the sliding direction of the warning piston 82 are perpendicular to each other. There is a deflation cavity 633 at the beginning of the slideway 632 away from the inner wall of the warning piston 82. The deflation cavity 633 penetrates the outer wall of the sealing cover 63 and is connected to the inner cavity of the sealing cover 63. The surface of the sealing plate 91 is pressed against the inner wall of the slideway 632 and closes the deflation cavity 633. One end of the connecting rod 92 is rotatably connected to The end face of the warning piston 82 and the other end of the connecting rod 92 are rotatably connected to the surface of the sealing plate 91. The end face of the sealing cover 63 is provided with an avoidance chamber 634 for accommodating the connecting rod 92. The avoidance chamber 634 connects the slideway 632 and the warning chamber 631. When the warning piston 82 slides along the inner wall of the warning chamber 631 in the direction away from the exhaust pipe 62, the connecting rod 92 receives the power of the warning piston 82 and drives the sealing plate 91 to slide along the inner wall of the slideway 632 in the direction away from the venting chamber 633. The sealing effect of the sealing plate 91 on the venting chamber 633 disappears, and the air in the exhaust pipe 62 is discharged through the venting chamber 633, thereby realizing the pressure relief of the gas in the exhaust pipe 62, making it difficult for the inner wall of the liquid inlet channel to crack due to air pressure overload, thereby extending the service life of the ball valve.

[0050] Reference Figure 4 and Figure 5 The air outlet pipe 94 is slidably connected to the inner wall of the air release chamber 633. The sliding direction of the air outlet pipe 94 and the sliding direction of the warning piston 82 are parallel to each other. The inner cavity of the air outlet pipe 94 is connected to the air release chamber 633. The air in the exhaust pipe 62 enters the inner cavity of the air outlet pipe 94 through the air release chamber 633 and is discharged. The elastic member 93 can be a compression spring or a tension spring. In the embodiment of the present application, the elastic member 93 is a compression spring with a certain deformation ability. One end of the elastic member 93 in the elastic direction is fixed to the inner wall of the air release chamber 633, and the other end of the elastic member 93 in the elastic direction is fixed to the surface of the air outlet pipe 94. The elastic member 93 has elastic force to drive the air outlet pipe 94 to slide in the direction away from the air release chamber 633. The end of the air outlet pipe 94 protrudes from the surface of the sealing cover 63, and the surface of the air outlet pipe 94 abuts against the surface of the sealing plate 91 to form a limiting tendency.

[0051] Reference Figure 4 and Figure 5When the connecting rod 92 receives the power of the warning piston 82 and drives the sealing plate 91 to slide in the direction away from the venting chamber 633, the sealing effect of the sealing plate 91 on the venting chamber 633 disappears, and the elastic force of the elastic member 93 drives the outlet pipe 94 to slide along the inner wall of the venting chamber 633 in the direction away from the exhaust pipe 62, and the end of the outlet pipe 94 protrudes from the end surface of the sealing cover 63 and abuts against the surface of the sealing plate 91 to form a limit, and the air in the exhaust pipe 62 is discharged from the outlet pipe 94 through the venting chamber 633. At the same time, the surface of the outlet pipe 94 abuts against the surface of the sealing plate 91 to form a limit, so that the warning horn 84 keeps sounding, thereby promptly reminding the staff to find the faulty ball valve and repair it, thereby improving the maintenance efficiency of the ball valve.

[0052] Reference Figure 5 and Figure 6 The inner wall of the air outlet pipe 94 near the sealing plate 91 is provided with a rotating chamber 941 for the opening and closing plate 95 to rotate. The rotation axis of the opening and closing plate 95 and the sliding direction of the air outlet pipe 94 are perpendicular to each other. The elastic member 3 96 can be a tension spring or a torsion spring. In the embodiment of the present application, the elastic member 3 96 is a torsion spring with a certain deformation ability. One end of the elastic member 3 96 in the elastic direction is fixed to the inner wall of the rotating chamber 941, and the other end of the elastic member 3 96 in the elastic direction is fixed to the rotating shaft of the opening and closing plate 95. The elastic member 3 96 has elastic force to drive the opening and closing plate 95 to rotate in the direction close to the rotating chamber 941. The surface of the opening and closing plate 95 is pressed against the inner wall of the rotating chamber 941 and closes the inner cavity of the air outlet pipe 94, so that external impurities are not easy to enter the inner cavity of the exhaust pipe 62 through the inner cavity of the air outlet pipe 94, thereby ensuring the stability of the operation of the ball valve.

[0053] Reference Figure 5 and Figure 6 When the elastic force of the second elastic member 93 drives the air outlet pipe 94 to slide in the direction away from the air release chamber 633, and the air outlet pipe 94 protrudes from the surface of the sealing cover 1 63, the air in the liquid inlet flow channel enters the air release chamber 633 through the exhaust pipe 62, and the air in the air release chamber 633 enters the inner cavity of the air outlet pipe 94 and impacts the surface of the opening and closing plate 95. The opening and closing plate 95 overcomes the elastic force of the third elastic member 96 and rotates in the direction away from the rotating chamber 941. The pressing force between the surface of the opening and closing plate 95 and the inner wall of the rotating chamber 941 disappears, and the air in the exhaust pipe 62 is discharged from the air outlet pipe 94, thereby realizing the directional discharge of the air in the liquid inlet flow channel.

[0054] Reference Figure 4 and Figure 5The material of the push-pull piston 98 can be rubber or silicone. In the embodiment of the present application, the material of the push-pull piston 98 is rubber, which has a certain deformation ability. A push-pull cavity 635 for the push-pull piston 98 to slide is provided on the surface of the sealing cover 63. The push-pull cavity 635 is connected to the deflation cavity 633. The sliding direction of the push-pull piston 98 and the sliding direction of the warning piston 82 are perpendicular to each other. One end of the connecting rope 97 is fixed to the surface of the air outlet pipe 94, and the other end of the connecting rope 97 is fixed to the surface of the push-pull piston 98. The connecting rope 97 between the push-pull piston 98 and the air outlet pipe 94 is in a taut state, and the end of the push-pull piston 98 away from the connecting rope 97 protrudes from the end surface of the sealing cover 63 and is held by the staff.

[0055] Reference Figure 4 and Figure 5 When the user completes the inspection of the ball valve, the staff holds the push-pull piston 98 to protrude from the end of the sealing cover 63. The push-pull piston 98 provides a force point for the user to drive the push-pull piston 98 to slide along the inner wall of the push-pull cavity 635 in the direction away from the deflation cavity 633. The connecting rope 97 receives the power of the push-pull piston 98 and drives the outlet pipe 94 to slide along the inner wall of the deflation cavity 633 in the direction close to the deflation cavity 633. The end face of the outlet pipe 94 is flush with the inner wall of the slideway 632, and the limiting effect of the outlet pipe 94 on the sealing plate 91 disappears. The elastic force of the elastic member 81 drives the warning piston 82 to slide along the inner wall of the warning chamber 631 toward the exhaust pipe 62, and the end face of the warning piston 82 is flush with the end face of the sealing cover 63. At the same time, the connecting rod 92 receives the power of the warning piston 82 and drives the sealing plate 91 to slide along the inner wall of the slideway 632 toward the exhaust chamber 633. The sealing plate 91 is pressed against the inner wall of the slideway 632 and closes the inner wall of the exhaust chamber 633. The sealing plate 91 is pressed against the surface of the exhaust pipe 94 to form a limit, thereby realizing the resetting of the exhaust assembly 9.

[0056] The implementation principle of a high temperature and wear-resistant ball valve in Example 2 of the present application is as follows: when the user completes the maintenance of the ball valve, the staff holds the push-pull piston 98 to protrude from the end of the sealing cover 63, and the push-pull piston 98 provides a force point for the user to drive the push-pull piston 98 to slide along the inner wall of the push-pull cavity 635 in the direction away from the deflation cavity 633, and the connecting rope 97 receives the power of the push-pull piston 98 and drives the outlet pipe 94 to slide along the inner wall of the deflation cavity 633 in the direction close to the deflation cavity 633, and the end face of the outlet pipe 94 is flush with the inner wall of the slideway 632, and the outlet pipe 94 is in contact with the sealing The limiting effect of plate 91 disappears, and the elastic force of elastic member 81 drives the warning piston 82 to slide along the inner wall of warning chamber 631 toward the exhaust pipe 62, and the end face of warning piston 82 is flush with the end face of sealing cover 63. At the same time, connecting rod 92 receives the power of warning piston 82 and drives sealing plate 91 to slide along the inner wall of slideway 632 toward the deflation chamber 633. The surface of sealing plate 91 presses against the inner wall of slideway 632 and closes the inner wall of deflation chamber 633, and the surface of sealing plate 91 presses against the surface of outlet pipe 94 to form a limit, thereby realizing the resetting of deflation assembly 9.

[0057] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A high temperature and wear resistant ball valve, characterized in that: The valve seat (1) comprises a valve stem (2) and a plurality of heat dissipation rings (3). The surface of the valve seat (1) is provided with a starting cavity (11) for the valve stem (2) to rotate. The end of the valve stem (2) protruding from the valve seat (1) is provided for the installation of an actuator. The plurality of heat dissipation rings (3) are connected to the surface of the valve seat (1) at intervals. The arrangement direction of the heat dissipation rings (3) and the axis of the valve stem (2) are parallel to each other, and the inner wall of the heat dissipation ring (3) surrounds the outer peripheral surface of the valve stem (2). The valve seat ( 1) is connected with a sewage discharge and exhaust assembly (6), the sewage discharge and exhaust assembly (6) comprising a sewage discharge pipe (61), an exhaust pipe (62), a sealing cover 1 (63) and a sealing cover 2 (64), the end of the sewage discharge pipe (61) and the end of the exhaust pipe (62) are connected to the surface of the valve seat (1) at intervals, the inner cavity of the sewage discharge pipe (61) and the inner cavity of the exhaust pipe (62) are both connected to the inner cavity of the valve seat (1), and the sealing cover 1 (63) is screwed and fixed to the end of the exhaust pipe (62) The inner cavity of the exhaust pipe (62) is sealed, and the second sealing cover (64) is screwed and fixed to the end of the sewage pipe (61) and seals the inner cavity of the sewage pipe (61); the first sealing cover (63) is connected to a warning component (8), and the warning component (8) includes an elastic member (81) and a warning piston (82); the surface of the first sealing cover (63) is provided with a warning cavity (631) for the warning piston (82) to slide, and the warning cavity (631) penetrates the first sealing cover (63) and connected to the inner cavity of the sealing cover (63), one end of the elastic member (81) in the elastic direction is connected to the surface of the warning piston (82), and the other end of the elastic member (81) in the elastic direction is connected to the inner wall of the warning cavity (631), and the elastic member (81) has an elastic force to drive the warning piston (82) to slide in the direction close to the inner cavity of the sealing cover (63), and the end face of the warning piston (82) tends to be flush with the surface of the sealing cover (63).

2. A high temperature resistant and wear resistant ball valve according to claim 1, characterized in that: Both ends of the valve seat (1) are connected with lifting rings (7).

3. The high temperature and wear resistant ball valve according to claim 1, characterized in that: Cover plates (4) are embedded at both ends of the valve seat (1), and the outer peripheral surface of the cover plate (4) is pressed against the inner cavity wall of the valve seat (1) to form a seal.

4. The high temperature and wear resistant ball valve according to claim 1, characterized in that: The warning assembly (8) further comprises a contact switch (83) and a warning horn (84); the contact switch (83) is connected to the inner wall of the sealing cover (63); the warning horn (84) is connected to the surface of the sealing cover (63); the contact switch (83) and the warning horn (84) are electrically connected; when the warning piston (82) slides in a direction away from the inner cavity of the sealing cover (63), the contact switch (83) abuts against the warning piston (82) and is turned on, and the warning horn (84) is energized and emits a sound.

5. The high temperature and wear resistant ball valve according to claim 1, characterized in that: The sealing cover (63) is connected to a deflation assembly (9), and the deflation assembly (9) includes a sealing plate (91) and a connecting rod (92). A slideway (632) for the sealing plate (91) to slide is provided on the surface of the sealing cover (63). The sliding direction of the sealing plate (91) and the sliding direction of the warning piston (82) are perpendicular to each other. A deflation cavity (633) is provided on the inner wall of the slideway (632). The deflation cavity (633) passes through the outer wall of the sealing cover (63) and is connected to the inner cavity of the sealing cover (63). The surface of the sealing plate (91) is pressed against the inner wall of the slideway (632) and closes the deflation chamber (633). One end of the connecting rod (92) is rotatably connected to the surface of the sealing plate (91). The other end of the connecting rod (92) is rotatably connected to the surface of the warning piston (82). When the end of the warning piston (82) protrudes from the end surface of the sealing cover (63), the connecting rod (92) drives the sealing plate (91) to slide in a direction away from the deflation chamber (633), and the sealing effect of the sealing plate (91) on the deflation chamber (633) disappears.

6. A high temperature and wear resistant ball valve according to claim 5, characterized in that: The deflation assembly (9) further comprises an elastic member 2 (93) and an air outlet pipe (94), wherein the air outlet pipe (94) is slidably connected to the inner wall of the deflation chamber (633), the inner cavity of the air outlet pipe (94) is connected to the deflation chamber (633), and the sliding direction of the air outlet pipe (94) and the sliding direction of the warning piston (82) are parallel to each other, one end of the elastic member 2 (93) in the elastic force direction is connected to the pipe surface of the air outlet pipe (94), and the other end of the elastic member 2 (93) in the elastic force direction is connected to the inner wall of the deflation chamber (633), the elastic member 2 (93) has an elastic force driving the air outlet pipe (94) to slide in a direction away from the deflation chamber (633), and the end of the air outlet pipe (94) tends to protrude from the surface of the sealing cover 1 (63).

7. The high temperature and wear resistant ball valve according to claim 6, characterized in that: The deflation assembly (9) further comprises an opening and closing plate (95) and an elastic member three (96); the inner wall of the air outlet pipe (94) is provided with a rotating chamber (941) for the opening and closing plate (95) to rotate; one end of the elastic member three (96) in the elastic force direction is connected to the rotating shaft of the opening and closing plate (95); the other end of the elastic member three (96) in the elastic force direction is connected to the inner wall of the rotating chamber (941); the elastic member three (96) has an elastic force to drive the opening and closing plate (95) to rotate in a direction close to the rotating chamber (941); and the opening and closing plate (95) is pressed against the inner wall of the rotating chamber (941) and closes the inner chamber of the air outlet pipe (94).

8. The high temperature and wear resistant ball valve according to claim 6, characterized in that: The deflation assembly (9) further comprises a connecting rope (97) and a push-pull piston (98); a push-pull cavity (635) for the push-pull piston (98) to slide is provided on the surface of the sealing cover (63); the push-pull cavity (635) is connected to the deflation cavity (633); one end of the connecting rope (97) is connected to the surface of the air outlet pipe (94); the other end of the connecting rope (97) is connected to the surface of the push-pull piston (98); the end of the push-pull piston (98) protrudes from the sealing cover (63) for the user to hold.

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