High-temperature-resistant and high-pressure-resistant gate valve with remote control function

Abstract

The utility model provides a high temperature and high pressure resistant gate valve with remote control, which comprises a valve body, a liquid inlet pipe orifice and a liquid outlet pipe orifice are integrally arranged on the valve body, an electric actuator is mounted on a valve cover mounted on the valve body, and a wireless controller is mounted on the electric actuator; the electric actuator is fixed with a valve rod mounted on the valve cover, the lower end of the valve rod is connected with the gate plate, and the gate plate is provided with a resisting bulge and a protective plate; valve seats are arranged in the liquid inlet pipe orifice and the liquid outlet pipe orifice, and one side of one valve seat is provided with an edge protecting seat and a water hammer resisting cover; the water hammer resisting cover is arranged at the liquid inlet pipe opening, water hammer impact force is buffered and dispersed, the flashboard is protected, and the service life is prolonged; the sealing ring seats on the two sides of the flashboard are matched to resist the bulges and the protective plates, and the high-temperature-resistant filling balls are filled, so that the sealing and high-temperature-resistant capabilities are The design of the liquid inlet and outlet pipe opening valve seat and the safe edge seat improves the stability of the water hammer resisting cover and the overall stability of the gate valve, and adapts to severe working conditions.

Description

Technical Field

[0001] This utility model belongs to the field of gate valve technology, and in particular relates to a high-temperature and high-pressure gate valve with remote control. Background Technology

[0002] Gate valves are a common control valve widely used in many fields such as industrial production and water supply and drainage systems for controlling the flow and shut-off of liquid media. Traditional gate valve structures can meet basic liquid transport control needs under normal use. However, when it is necessary to quickly shut off the flow of liquid media, a serious problem arises—the water hammer effect.

[0003] Water hammer refers to the hydraulic impact phenomenon in pressurized pipelines, caused by a series of alternating pressure rises and falls due to rapid changes in liquid flow velocity. When a gate valve closes rapidly, the flow of the liquid medium is suddenly obstructed. The liquid, which originally had a certain flow velocity and kinetic energy, changes its state instantaneously, generating extremely high impact force. This impact force acts directly on the gate of the gate valve.

[0004] Existing gate valve designs often fail to adequately consider the impact of the powerful water hammer effect on the gate. After prolonged exposure to this impact, the gate's structure gradually deteriorates. For example, the sealing surface between the gate and the valve seat may deform or wear, leading to a decline in sealing performance. Once the gate's sealing effect is severely compromised, liquid leakage will occur, resulting not only in resource waste but also potential safety accidents, threatening the production environment and personnel safety. Furthermore, frequent water hammer impacts can cause structural fatigue in the gate, shortening the valve's lifespan and increasing equipment maintenance costs and replacement frequency.

[0005] Therefore, it is essential to invent a high-temperature and high-pressure gate valve with remote control. Utility Model Content

[0006] To address the aforementioned technical problems, this utility model provides a high-temperature and high-pressure gate valve with remote control, comprising a valve body, an inlet pipe, a outlet pipe, a valve cover, an electric actuator, a wireless controller, a side guard, a valve stem, a gate, a resistive protrusion, a protective plate, a valve seat, and a water hammer resistance cover. The inlet pipe and outlet pipe are integrally formed on the valve body. An electric actuator is mounted on the valve cover, and a wireless controller is mounted on the electric actuator. The output end of the electric actuator is fixed to the upper end of the valve stem mounted on the valve cover. The lower end of the valve stem is connected to the gate, and a resistive protrusion and a protective plate are mounted on the gate. Valve seats are installed inside both the inlet and outlet pipes, and a side guard is provided on one side of one of the valve seats, with a water hammer resistance cover fixedly mounted thereon.

[0007] Preferably, the valve body is provided with a slide rail that is slidably connected to the gate, and both sides of the gate are equipped with sealing ring seats that are in sealing contact with the valve seat.

[0008] Preferably, both sides of the gate are provided with recessed grooves, and a resisting protrusion is provided at the center of the groove. The resisting protrusion is located inside the guard plate. The cross-section of the guard plate is an arc-shaped structure. The guard plate is fixedly connected to the inner ring of the sealing ring seat provided on the gate.

[0009] Preferably, the recessed groove of the gate located inside the guard plate is filled with high-temperature resistant filling balls, and a water hammer resistance shield is provided on one side of the gate plate. The water hammer resistance shield is located inside the liquid inlet and is fixedly connected to the inner wall of the valve seat inner ring fixedly installed inside the liquid inlet.

[0010] Preferably, the cross-section of the water hammer resistance shield is arc-shaped, and its overall structure is a spherical convex shield. Numerous through holes are distributed throughout the water hammer resistance shield, and the arc-convex direction of the water hammer resistance shield is opposite to the liquid flow direction.

[0011] Preferably, the water hammer resistance shield is located on one side of the edge protector fixedly installed inside the liquid inlet pipe, the side of the edge protector facing the water hammer resistance shield is in close contact with the outer edge of the water hammer resistance shield, and the other end face of the water hammer resistance shield is a slope.

[0012] Compared with the prior art, the present invention has the following beneficial effects:

[0013] This invention utilizes a water hammer resisting shield installed inside the inlet pipe. When the liquid medium generates a water hammer effect during the rapid closure of the gate valve, the water hammer resisting shield buffers and disperses the impact force. Its spherical convex shield structure and numerous through-holes allow the impact force to be dispersed through these holes, while the arc-shaped structure also alters the direction of the impact force, reducing direct impact on the gate plate. The arc-shaped convex direction of the water hammer resisting shield is positioned opposite to the liquid flow direction, better absorbing and mitigating the water hammer impact force, thereby protecting the gate plate from severe water hammer damage, extending its service life, and ensuring its sealing effect.

[0014] This utility model features sealing ring seats on both sides of the gate valve, which are in sealing contact with the valve seat. Furthermore, a resisting protrusion and a protective plate are installed within the recessed groove of the gate valve, with the protective plate fixedly connected to the inner ring of the sealing ring seat. This structural design ensures a tighter seal between the gate valve and the valve seat. The resisting protrusion enhances the structural strength of the gate valve, reducing deformation caused by external forces such as water hammer, further improving sealing performance and effectively preventing liquid leakage. In addition, high-temperature resistant filler balls are filled inside the protective plate and within the recessed groove of the gate valve. These filler balls maintain stable performance under high-temperature environments, enhancing the gate valve's high-temperature resistance and enabling normal operation in harsh high-temperature and high-pressure environments, thus broadening the application range of the gate valve.

[0015] Both the inlet and outlet of this utility model are equipped with valve seats. One of the valve seats has a protective edge seat on one side. The side of the protective edge seat facing the water hammer resistance cover is in close contact with the outer edge of the water hammer resistance cover. This structural design enhances the installation stability of the water hammer resistance cover and also improves the structural stability of the entire gate valve, ensuring that the gate valve can maintain a good working condition during long-term use. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0017] Figure 2 This is a partial cross-sectional structural diagram of the present invention.

[0018] Figure 3 This is a utility model Figure 2 A magnified schematic diagram of the structure at point A.

[0019] In the picture:

[0020] 1. Valve body, 2. Inlet pipe, 3. Drain pipe, 4. Valve cover, 5. Electric actuator, 6. Wireless controller, 7. Side guard, 8. Valve stem, 9. Gate, 10. Resistance protrusion, 11. Protective plate, 12. Valve seat, 13. Water hammer resistance cover. Detailed Implementation

[0021] To enable those skilled in the art to better understand the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort should fall within the protection scope of the present invention.

[0022] In the description of the embodiments, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," and "the other end," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing the present invention and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. In the description of the utility model, it should be noted that unless otherwise explicitly specified and limited, the terms "installed," "equipped with," "connected," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in the present utility model based on the specific circumstances.

[0023] As attached Figure 1 To be continued Figure 3 As shown:

[0024] This utility model provides a high-temperature and high-pressure gate valve with remote control, comprising a valve body 1, an inlet pipe 2, an outlet pipe 3, a valve cover 4, an electric actuator 5, a wireless controller 6, a side guard seat 7, a valve stem 8, a gate plate 9, a resisting protrusion 10, a protective plate 11, a valve seat 12, and a water hammer resistance cover 13. The inlet pipe 2 and the outlet pipe 3 are integrally arranged on the valve body 1. The electric actuator 5 is installed on the valve cover 4 mounted on the valve body 1, and the wireless controller 6 is installed on the electric actuator 5. The output end of the electric actuator 5 is fixed to the upper end of the valve stem 8 mounted on the valve cover 4. The lower end of the valve stem 8 is connected to the gate plate 9. The gate plate 9 is provided with a resisting protrusion 10 and a protective plate 11. A valve seat 12 is installed in both the inlet pipe 2 and the outlet pipe 3. One of the valve seats 12 has a side guard seat 7 on one side, and a water hammer resistance cover 13 is fixedly installed thereon.

[0025] Furthermore, a slide rail provided inside the valve body 1 is slidably connected to the gate 9. The design of the slide rail allows the gate 9 to smoothly open and close within the valve body 1. The slide rail is typically made of the same or compatible metal material as the valve body 1, such as carbon steel or stainless steel, to ensure sufficient strength and wear resistance to withstand the frequent sliding of the gate 9 and the scouring of the medium. The gate 9 slides within the slide rail, achieving the cutoff or flow control of the fluid in the pipeline.

[0026] Furthermore, sealing ring seats are installed on both sides of the gate 9. These sealing ring seats are in sealing contact with the valve seat 12, playing a crucial sealing role and preventing media leakage. The sealing ring seats are generally made of materials with good sealing performance and corrosion resistance, such as rubber or polytetrafluoroethylene. Recessed grooves are provided on both sides of the gate 9, with a resisting protrusion 10 located at the center of each groove. The resisting protrusion 10 is located inside the guard plate 11, which has an arc-shaped cross-section. The guard plate 11 is fixedly connected to the inner ring of the sealing ring seat on the gate 9 by welding, riveting, or using sealant. The guard plate 11 is usually made of metal, such as stainless steel, to enhance the structural strength and stability of the sealing ring seat, while also protecting and positioning the resisting protrusion 10.

[0027] Furthermore, the recessed groove of the gate 9 located inside the guard plate 11 is filled with high-temperature resistant filler balls. These filler balls can be made of high-temperature resistant materials such as ceramics and graphite, and their function is to further enhance the sealing and heat insulation performance of the gate 9 under high-temperature environments. A water hammer resisting cover 13 is provided on one side of the gate 9. The water hammer resisting cover 13 is located inside the liquid inlet 2 and is fixedly connected to the inner wall of the valve seat 12, which is fixedly installed inside the liquid inlet 2, by welding, bolting, or other means. The water hammer resisting cover 13 is used to resist the impact of water hammer on the gate valve and protect the normal operation of the gate valve.

[0028] Furthermore, the water hammer resisting shield 13 has an arc-shaped cross-section, and its overall structure is a spherical convex shield. Numerous through-holes are distributed throughout the water hammer resisting shield 13. These through-holes mitigate the impact force of the water flow to a certain extent while ensuring the normal flow of the medium. The arc-convex direction of the water hammer resisting shield 13 is positioned opposite to the direction of liquid flow. This design allows it to better utilize its structural shape to disperse and weaken the impact force generated by water hammer. The water hammer resisting shield 13 is generally made of high-strength, impact-resistant metal materials, such as cast steel.

[0029] Furthermore, the water hammer resisting shield 13 is located on one side of the guard seat 7 fixedly installed inside the inlet pipe 2, with the side of the guard seat 7 facing the water hammer resisting shield 13 in close contact with the outer edge of the water hammer resisting shield 13. The guard seat 7 serves to position and provide auxiliary support for the water hammer resisting shield 13, enhancing its stability within the inlet pipe 2. The guard seat 7 is typically made of a metal material similar to that of the valve body 1. The other end face of the water hammer resisting shield 13 is a slope, which helps guide the flow of the medium and reduces turbulence and pressure loss within the valve.

[0030] The working principle is as follows: When it is necessary to control the flow of high-temperature and high-pressure media in a pipeline, the remote-controlled high-temperature and high-pressure gate valve begins to function. The entire working process involves the coordinated operation of multiple components to achieve precise and reliable control.

[0031] The operator sends control commands via the wireless controller 6, which are transmitted wirelessly to the electric actuator 5. Upon receiving the commands, the electric actuator 5 starts its internal motor. The motor's rotational motion is converted into linear motion through a series of transmission mechanisms, and the output end transmits linear driving force to the valve stem 8. The valve stem 8 is fixedly connected to the output end of the electric actuator 5. Under the action of the driving force, the valve stem 8 begins to move up and down. Since the lower end of the valve stem 8 is connected to the gate 9, it drives the gate 9 to move up or down along the slide within the valve body 1, thereby opening or closing the valve.

[0032] High-temperature and high-pressure media flow into valve body 1 from inlet 2. When the gate valve is open, gate 9 rises, the internal passage of valve body 1 is unobstructed, and the media can pass smoothly and flow out from outlet 3, realizing the normal transportation of media in the pipeline. When it is necessary to cut off the flow of media, electric actuator 5 drives valve stem 8 to lower gate 9. The sealing ring seats installed on both sides of gate 9 gradually approach and fit tightly against valve seat 12 to form a sealing surface, blocking the media from flowing from inlet 2 to outlet 3, completing the cut-off operation.

[0033] The sealing ring seats on both sides of the gate 9 are made of materials with good sealing performance and corrosion resistance, such as rubber and polytetrafluoroethylene. During the descent of the gate 9 and its contact with the valve seat 12, the sealing ring seats, under the action of their own material elasticity and the pressure of the medium, tightly fill the tiny gaps between the gate 9 and the valve seat 12, effectively preventing medium leakage. Furthermore, the high-temperature resistant filler balls filling the grooves on the surface of the gate 9 maintain their material properties under high-temperature environments, further filling any potential gaps and enhancing the sealing effect. At the same time, these high-temperature resistant filler balls also act as heat insulation, reducing heat conduction from the high-temperature medium to the gate 9 and surrounding components, protecting the stability of component performance.

[0034] In pipeline systems, water hammer can easily occur when the medium flow velocity changes suddenly, causing impact damage to gate valves. A water hammer resisting cover 13 is installed inside the inlet pipe 2. Its cross-section is arc-shaped, with an overall spherical convex structure and the convex direction opposite to the liquid flow direction. When the instantaneous high-pressure impact water flow generated by water hammer arrives, the water hammer resisting cover 13 is the first to bear the impact. Due to its special spherical convex structure, the water flow impact force is dispersed across the entire cover surface. Simultaneously, numerous through-holes distributed throughout the water hammer resisting cover 13 allow some water flow to disperse the impact force, mitigating the direct impact intensity on the gate valve. Furthermore, the protective edge seat 7, which is in close contact with the water hammer resisting cover 13 on one side, provides positioning and auxiliary support, ensuring the water hammer resisting cover 13 remains stable under impact and continues to effectively provide protection. The inclined design on the other side of the water hammer resisting cover 13 helps guide the smooth flow of the medium during normal flow, reducing turbulence and pressure loss, and ensuring the stability of medium transport within the pipeline system.

[0035] Any technical solution that achieves the above-mentioned technical effects by utilizing the technical solution described in this utility model, or by designing a similar technical solution inspired by the technical solution described in this utility model, falls within the protection scope of this utility model.

Claims

1. A high temperature and high pressure resistant gate valve with remote control, characterized in that, The utility model provides a valve body (1), liquid inlet (2), liquid outlet (3), valve cover (4), electric executor (5), wireless controller (6), edge protection seat (7), valve stem (8), gate (9), resistance protrusion (10), guard board (11), valve seat (12) and water hammer resistance cover (13), the valve body (1) is integrally provided with liquid inlet (2) and liquid outlet (3) on opposite sides, the valve cover (4) installed on the valve body (1) is installed with electric executor (5), and electric executor (5) is installed with wireless controller (6); the output end of electric executor (5) is fixed with the upper end of valve stem (8) installed on the valve cover (4), the lower end of valve stem (8) is connected with gate (9), and resistance protrusion (10) and guard board (11) are installed on gate (9); valve seat (12) is installed in liquid inlet (2) and liquid outlet (3), and one side of valve seat (12) is provided with edge protection seat (7) and fixedly installed with water hammer resistance cover (13).

2. A high temperature and high pressure resistant gate valve with remote control as claimed in claim 1, characterized in that: The inner side of the valve body (1) is provided with a slide connected with the gate (9) in sliding mode, and the both sides of the gate (9) are provided with a sealing ring seat in sealing contact with the valve seat (12).

3. A high temperature and high pressure resistant gate valve with remote control as claimed in claim 2, characterized in that: The both sides of the gate (9) are provided with recessed grooves, and the recessed grooves are provided with resistance protrusions (10) at the centers of the recessed grooves, the resistance protrusions (10) are located in the inner side of the guard board (11), the cross section of the guard board (11) is an arc structure, and the guard board (11) is fixedly connected with the inner ring of the sealing ring seat of the gate (9).

4. A high temperature and high pressure resistant gate valve with remote control as claimed in claim 3, characterized in that: The recessed grooves of the gate (9) are filled with high-temperature-resistant filling balls, one side of the gate (9) is provided with a water hammer resistance cover (13), the water hammer resistance cover (13) is arranged in the liquid inlet (2) and is fixedly connected with the inner wall of the inner ring of the valve seat (12) fixedly installed in the liquid inlet (2).

5. A high temperature and high pressure resistant gate valve with remote control as claimed in claim 4, characterized in that: The cross section of the water hammer resistance cover (13) is an arc, the whole is a spherical convex cover structure, a plurality of through holes are arranged on the water hammer resistance cover (13), and the arc convex direction of the water hammer resistance cover (13) is opposite to the liquid flow direction.

6. A high temperature and high pressure resistant gate valve with remote control as claimed in claim 5, characterized in that: The water hammer resistance cover (13) is located on one side of the edge protection seat (7) fixedly installed in the liquid inlet (2), one side of the edge protection seat (7) facing the water hammer resistance cover (13) is in close contact with the outer surface edge of the water hammer resistance cover (13), and the other direction end surface of the water hammer resistance cover (13) is an inclined surface.

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