RTO lift valve

Abstract

The utility model discloses an RTO lift valve. A valve shaft is sleeved with a valve installation panel in a sliding mode, and the valve shaft is perpendicular to the valve installation panel. The upper surface of the valve mounting panel is fixedly connected with two side plates, the two side plates are parallel to each other, the two side plates are perpendicular to the valve mounting panel, and the two side plates are symmetrical relative to the axis of the valve shaft; a top plate is fixedly connected to the tops of the two side plates and fixedly connected with an air cylinder which is connected with the valve shaft through a through hole in the center of the top plate. A valve plate is fixedly sleeved outside the valve shaft, a valve plate sealing rope mounting panel is slidably sleeved outside the valve shaft, the valve plate is arranged below the valve mounting panel, and the sealing rope mounting panel is arranged below the valve plate. According to the lift valve, the problems that a detection switch of the lift valve cannot detect the actual stroke and the lift valve leaks due to abrasion in the prior art are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of RTO waste gas treatment, in particular to an RTO lifting valve. Background Art

[0002] Among related technologies, the purification of industrial waste gas containing volatile organic compounds (VOCs) is a hot topic in air pollution control. Regenerative thermal incineration (RTO) is a typical method for purifying industrial organic waste gas, suitable for treating medium- and high-concentration industrial organic waste gas. In a regenerative thermal incineration system, the waste gas switching valve is one of the most critical components. The quality of the waste gas control valve directly affects the performance of the entire RTO process. Even the slightest waste gas leak can significantly reduce waste gas treatment efficiency. Currently, in the RTO industry, the poppet valve has gradually become the mainstream design for ventilation control valves.

[0003] Most common poppet valves currently use soft seals or direct contact seals between the steel plate and the valve body. These have the following drawbacks: 1. The on / off detection system in conventional poppet valve cylinders can only sense the cylinder itself, not whether the stroke is actually open. Furthermore, the on / off detection system in the cylinders is not securely fixed and can easily fall off due to gravity when installed vertically, leading to signal loss. 2. The valve has high switching resistance, and prolonged on / off operation can easily lead to deviation. Slight eccentricity can cause severe wear and tear, and can easily damage the shaft and cylinder seals, affecting normal use. 3. The sealing structure is prone to deformation at high temperatures, requiring a very high degree of fit between the sealing surfaces to effectively reduce leakage.

[0004] Therefore, in the prior art, there is no effective solution to the technical problem that the detection switch of the poppet valve cannot detect the actual stroke and the poppet valve leaks due to wear. Utility Model Content

[0005] The purpose of the utility model is to provide an RTO poppet valve to solve the technical problems in the related art that the detection switch of the poppet valve cannot detect the actual stroke and the poppet valve leaks due to wear.

[0006] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0007] An RTO poppet valve comprises a valve mounting panel which is slidably sleeved on the outside of a valve shaft, and the valve shaft is perpendicular to the valve mounting panel; two side plates are fixedly connected to the upper surface of the valve mounting panel, the two side plates are parallel, the two side plates are perpendicular to the valve mounting panel, and the two side plates are symmetrical with respect to the axis of the valve shaft; a top plate is fixedly connected to the top of the two side plates, a cylinder is fixedly connected to the top plate, and the cylinder is connected to the valve shaft through a through hole in the center of the top plate; a valve plate is fixedly sleeved on the outside of the valve shaft, a valve plate sealing rope mounting panel is slidably sleeved on the outside of the valve shaft, the valve plate is below the valve mounting panel, and the sealing rope mounting panel is below the valve plate.

[0008] Further set as: a valve box is fixedly connected to the outside of the side plate; the valve box is connected to the cylinder.

[0009] Further set as: a first detection switch and a second detection switch are installed on the inner side of the side plate, and the first detection switch is above the second detection switch.

[0010] Further set as: a switch induction ring is fixedly sleeved on the valve shaft; when the lifting valve is opened, the switch induction ring is in the same plane as the first detection switch; when the lifting valve is closed, the switch induction ring is in the same plane as the second detection switch.

[0011] Further set as: four guide rods are fixedly connected to the bottom of the valve installation panel, and the guide rods are perpendicular to the valve installation panel.

[0012] Further set as: the valve plate is connected to the guide rod through a positioning connector, and the positioning connector is slidably sleeved on the outside of the guide rod.

[0013] Further set as: the bottom of the guide rod is fixedly connected to the upper surface of the sealing rope installation surface.

[0014] Further set as: a sealing rope is fixedly connected to the upper surface of the sealing rope installation surface.

[0015] Further set as: three pulleys are fixedly connected to the bottom of the valve installation panel, and the three pulleys are arranged around the axis of the valve shaft.

[0016] Further set as: three pulleys are fixedly connected to the bottom of the sealing rope installation surface, and the three pulleys are arranged around the axis of the valve shaft.

[0017] Compared with the prior art, the beneficial technical effects of the present utility model are as follows: In the design of the lifting valve, through a series of delicate structures and component configurations, an efficient and stable switching function is achieved. The valve installation panel supports the entire valve structure, and through the guide rod and positioning connection components, the smooth movement of the valve plate during the opening and closing processes is ensured. The design of the guide rod provides stable guidance for the valve plate, preventing the rotation or deviation of the valve plate, while the positioning connection components enable the valve plate to slide freely along the guide rod. In order to reduce the switching resistance and improve the stability of the system, the present utility model arranges pulleys at the positions where the valve shaft passes through the valve installation panel and the sealing rope installation panel respectively. These pulleys not only provide rolling support for the valve shaft, reducing sliding friction, but also prevent the valve shaft from being eccentric during long-term use. In addition, the cooperation between the sealing rope and the valve plate achieves excellent sealing performance, ensuring the sealing and stability of the lifting valve in the closed state. The entire lifting valve adopts a modular design, which is convenient for installation and maintenance. The bolt connection between the valve installation panel and the RTO enables the lifting valve to be flexibly installed in different positions, supporting both vertical installation and horizontal installation. In addition, through the cooperation between the detection switch and the switch induction ring, the opening and closing state of the valve can be monitored in real time, and a feedback signal is sent to the control system, realizing automatic control.

[0018] In summary, the design of this lifting valve is excellent in terms of structural compactness, stability, sealing performance, automatic control, and installation flexibility, providing strong support for the automation and efficient production in the industrial field. Brief Description of the Drawings

[0019] In order to more clearly illustrate the specific embodiments of the present utility model or the technical solutions in the prior art, the following will briefly introduce the drawings required for use in the description of the specific embodiments or the prior art. Obviously, the following drawings are some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0020] Figure 1 It is a schematic diagram of the overall structure of the present utility model;

[0021] Figure 2 It is the front view of the present utility model;

[0022] Figure 3 It is the side view of the present utility model;

[0023] Figure 4 It is the top view of the present utility model;

[0024] Figure 5 It is the bottom view of the present utility model;

[0025] Figure 6It is an enlarged schematic diagram of the switch induction ring;

[0026] Figure 7 It is an enlarged schematic diagram of the pulley at the valve installation panel;

[0027] Figure 8 It is an enlarged schematic diagram of the pulley at the sealing rope installation panel.

[0028] Reference numerals: 1, cylinder; 2, first detection switch; 3, valve shaft; 4, second detection switch; 5, valve installation panel; 6, guide rod; 7, valve plate; 8, sealing rope installation panel; 9, switch induction ring; 10, valve box; 11, pulley; 12, sealing rope; 13, side plate. Detailed implementation manners

[0029] Next, the technical solutions of the present utility model will be clearly and completely described in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the present utility model, rather than all of the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0030] In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the accompanying drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present utility model. In addition, the terms "first", "second", "third" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance.

[0031] In the description of the present utility model, it should be noted that unless otherwise clearly defined and limited, the terms "installation", "connection", "connected" should be understood in a broad sense. For example, it 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 directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.

[0032] Embodiment

[0033] Refer to Figures 1 - 5, a RTO lift valve disclosed by the present utility model. The present utility model includes: a valve mounting panel 5 is slidably sleeved outside a valve shaft 3, and the valve shaft 3 is perpendicular to the valve mounting panel 5; two side plates 13 are fixedly connected to the upper surface of the valve mounting panel 5, the two side plates 13 are parallel, the two side plates 13 are perpendicular to the valve mounting panel 5, and the two side plates 13 are symmetric with respect to the axis of the valve shaft 3; a top plate is fixedly connected to the tops of the two side plates 13, and a cylinder 1 is fixedly connected to the top plate. The cylinder 1 is connected to the valve shaft 3 through a through hole in the center of the top plate; a valve plate 7 is fixedly sleeved outside the valve shaft 3, and a valve plate 7 sealing rope mounting panel 8 is slidably sleeved outside the valve shaft 3. The valve plate 7 is below the valve mounting panel 5, and the sealing rope mounting panel 8 is below the valve plate 7.

[0034] Specifically, Figures 1 - 5 For the open state of the lift valve, compressed air controls the solenoid valve in the valve box 10 to open, the compressed air is introduced into the cylinder 1, the cylinder 1 pushes the valve shaft 3 to move downward, the valve plate 7 presses the sealing rope 12, and the closing action is completed; the second detection switch 4 detects the switch induction ring 9 on the valve shaft 3, and the closing is in place; when the valve is opened, the first detection switch 2 detects the switch induction ring 9 on the valve shaft 3, and the opening is in place. The lift valve is of a modular structure and is bolted to the RTO through the valve mounting panel 5, which is convenient for installation. Moreover, the lift valve of the present utility model can be installed vertically or horizontally.

[0035] The lift valve is designed as a modular structure, making the installation and disassembly processes simple and fast. Through the bolt connection between the valve mounting panel 5 and the RTO (regenerative thermal oxidizer), the installation and replacement of the lift valve can be conveniently achieved, reducing the maintenance cost and time. Through the control of compressed air and the solenoid valve, the rapid opening and closing of the valve are realized. The push of the cylinder 1 enables the valve shaft 3 to move precisely, ensuring that the valve plate 7 can accurately press the sealing rope 12 to achieve a good sealing effect. At the same time, through the real-time monitoring of the position of the valve shaft 3 by the detection switch, the in-place accuracy of the valve opening and closing is ensured.

[0036] It is further set that: a valve box 10 is fixedly connected to the outside of the side plate 13; the valve box 10 is connected to the cylinder 1.

[0037] Specifically, the valve box 10 provides a protective shell for the cylinder 1 and its control components, preventing external impurities such as dust and moisture from eroding the cylinder 1 and the control components, and extending the service life of the equipment. At the same time, control components such as the solenoid valve in the valve box 10 realize the precise control of the cylinder 1, thereby ensuring the accurate opening and closing of the valve. The design of the valve box 10 makes the maintenance and management of the cylinder 1 and related control components more convenient. When it is necessary to overhaul or replace components, the valve box 10 can be easily opened to check and repair the internal components without the need to disassemble the entire lift valve on a large scale. This reduces the maintenance cost and improves the maintenance efficiency.

[0038] Refer to Figure 6 , a first detection switch 2 and a second detection switch 4 are installed inside the side plate 13, and the first detection switch 2 is above the second detection switch 4. A switch induction ring 9 is fixedly sleeved on the valve shaft 3; when the lifting valve is opened, the switch induction ring 9 is in the same plane as the first detection switch 2; when the lifting valve is closed, the switch induction ring 9 is in the same plane as the second detection switch 4.

[0039] Specifically, through the cooperation of the first detection switch 2 and the second detection switch 4 with the switch induction ring 9, the position of the valve shaft 3, that is, the opening and closing states of the lifting valve, can be accurately detected. This precise position detection mechanism helps to ensure the accurate control of the valve, avoiding failures or performance degradation caused by position errors. When the lifting valve is opened or closed in place, the switch induction ring 9 will trigger the first detection switch 2 or the second detection switch 4 respectively, thus sending a feedback signal to the control system. This automated feedback mechanism enables the control system to understand the actual state of the valve in real time and make corresponding adjustments or controls as needed, improving the automation level and response speed of the system. Through precise position detection and automated feedback control, it can be ensured that the lifting valve always stays in the correct position during the opening and closing processes, avoiding system instability or failures caused by position deviation or out-of-control. This design improves the reliability and stability of the system, reducing the maintenance cost and time.

[0040] It is further set that: the upper surface of the installation surface of the sealing rope 12 is fixedly connected with the sealing rope 12. The sealing rope 12 cooperates with the valve plate 7 to close the lifting valve. When the valve plate 7 abuts against the sealing rope 12, the lifting valve is in the closed state.

[0041] Specifically, the fixed installation of the sealing rope 12 and its cooperation design with the valve plate 7 enable the lifting valve to maintain stability in the closed state. The uniform pressure exerted by the valve plate 7 on the sealing rope 12, as well as the elasticity and resilience of the sealing rope 12 itself, jointly ensure the stability and reliability of the closed state. Since the contact between the sealing rope 12 and the valve plate 7 is flexible, this helps to reduce wear and damage caused by hard contact. At the same time, the material of the sealing rope 12 usually has good wear and corrosion resistance, and can maintain a long service life in a harsh working environment.

[0042] It is further set that: four guide rods 6 are fixedly connected to the bottom of the valve installation panel 5, and the guide rods 6 are perpendicular to the valve installation panel 5. The valve plate 7 is connected to the guide rods 6 through a positioning connector, and the positioning connector is slidably sleeved on the outside of the guide rods 6. The bottom of the guide rods 6 is fixedly connected to the upper surface of the installation surface of the sealing rope 12.

[0043] Refer to Figure 7 and Figure 8, three pulleys 11 are fixedly connected to the bottom of the valve installation panel 5, and the three pulleys 11 are arranged around the axis of the valve shaft 3. Three pulleys 11 are fixedly connected to the bottom of the installation surface of the sealing rope 12, and the three pulleys 11 are arranged around the axis of the valve shaft 3.

[0044] When the lifting valve is switched, the valve plate 7 moves along the guide rod 6 to prevent the valve plate 7 from rotating back and forth; three pulleys 11 are arranged at the position where the valve shaft 3 passes through the valve installation panel 5, and three pulleys 11 are also arranged at the position where the valve shaft 3 passes through the sealing rope installation panel 8. The pulleys 11 at both places are designed to provide a guiding effect in the movement direction of the valve, preventing the valve shaft 3 from being eccentric during long-term operation. The double pulley 11 system is adopted to reduce the valve switching resistance while guiding.

[0045] Specifically, the guide rod 6 is perpendicular to the valve installation panel 5, providing a stable linear movement trajectory for the valve plate 7. The valve plate 7 is slidably sleeved outside the guide rod 6 through a positioning connector, ensuring that the valve plate 7 can move smoothly along a predetermined path during the switching action, avoiding the back-and-forth rotation or offset of the valve plate 7, and improving the stability and reliability of the system. The introduction of the pulley 11 system significantly reduces the frictional resistance during the valve switching process. Whether it is the pulleys 11 at the bottom of the valve installation panel 5 or the bottom of the installation surface of the sealing rope 12, they are all arranged around the axis of the valve shaft 3, providing good rolling support for the movement of the valve shaft 3 and the valve plate 7. This design reduces sliding friction, making the valve switching easier and smoother, and reducing energy consumption and wear. Pulleys 11 are arranged at the positions where the valve shaft 3 passes through the valve installation panel 5 and the sealing rope installation panel 8 respectively, forming a double pulley 11 system. This design not only provides an additional guiding effect but also helps to prevent the valve shaft 3 from being eccentric during long-term use. By maintaining the linear movement and stable positioning of the valve shaft 3, the service life of the equipment is extended and the overall performance of the system is improved.

[0046] The working principle and beneficial effects of the present utility model are as follows:

[0047] Compressed air controls the solenoid valve in the valve box 10 to open, and the compressed air enters the cylinder 1. The cylinder 1 pushes the valve shaft 3 downward, and the valve plate 7 presses the sealing rope 12 to complete the closing action.

[0048] In this utility model, through a series of delicate structures and component configurations, an efficient and stable switching function is achieved. The valve mounting panel 5 supports the entire valve structure, and ensures the smooth movement of the valve plate 7 during the opening and closing processes through the guide rod 6 and the positioning connecting piece. The design of the guide rod 6 provides stable guidance for the valve plate 7, preventing the rotation or deviation of the valve plate 7, while the positioning connecting piece enables the valve plate 7 to slide freely along the guide rod 6. In order to reduce the switching resistance and improve the stability of the system, the utility model arranges pulleys 11 at the positions where the valve shaft 3 passes through the valve mounting panel 5 and the sealing rope mounting panel 8 respectively. These pulleys 11 not only provide rolling support for the valve shaft 3, reducing sliding friction, but also prevent the valve shaft 3 from being eccentric during long-term use. In addition, the cooperation between the sealing rope 12 and the valve plate 7 achieves excellent sealing performance, ensuring the sealing and stability of the lift valve in the closed state. The entire lift valve adopts a modular design, which is convenient for installation and maintenance. The bolt connection between the valve mounting panel 5 and the RTO enables the lift valve to be flexibly installed in different positions, supporting both vertical installation and horizontal installation. In addition, by detecting the cooperation between the switch and the switch induction ring 9, the opening and closing state of the valve can be monitored in real time, and a feedback signal is sent to the control system, realizing automatic control.

[0049] In summary, the design of this lift valve is excellent in terms of structural compactness, stability, sealing performance, automatic control, and installation flexibility, providing strong support for the automation and efficient production in the industrial field.

[0050] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present utility model and are not intended to limit them; although the present utility model has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements for some or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present utility model.

Claims

1. An RTO lift valve, characterized in that, Comprising: The outer part of the valve shaft (3) is slidably sleeved with a valve mounting panel (5), and the valve shaft (3) is perpendicular to the valve mounting panel (5); Two side plates (13) are fixedly connected to the upper surface of the valve mounting panel (5). The two side plates (13) are parallel, perpendicular to the valve mounting panel (5), and symmetric about the axis of the valve shaft (3); The tops of the two side plates (13) are fixedly connected with a top plate, and a cylinder (1) is fixedly connected to the top plate. The cylinder (1) is connected to the valve shaft (3) through a through hole at the center of the top plate; A valve plate (7) is fixedly sleeved on the outer part of the valve shaft (3), and a valve plate (7) sealing rope mounting panel (8) is slidably sleeved on the outer part of the valve shaft (3). The valve plate (7) is below the valve mounting panel (5), and the sealing rope mounting panel (8) is below the valve plate (7).

2. The RTO lift valve according to claim 1, wherein, Comprising: A valve box (10) is fixedly connected to the outer part of the side plate (13); The valve box (10) is connected to the cylinder (1).

3. The RTO lift valve according to claim 1, characterized in that, Comprising: A first detection switch (2) and a second detection switch (4) are installed inside the side plate (13), and the first detection switch (2) is above the second detection switch (4).

4. The RTO lift valve according to claim 3, wherein, Comprising: A switch induction ring (9) is fixedly sleeved on the valve shaft (3); When the lift valve is opened, the switch induction ring (9) and the first detection switch (2) are in the same plane; When the lift valve is closed, the switch induction ring (9) and the second detection switch (4) are in the same plane.

5. The RTO lift valve according to claim 1, characterized in that, Comprising:

6. The RTO lift valve according to claim 5, characterized in that, Four guide rods (6) are fixedly connected to the bottom of the valve mounting panel (5), and the guide rods (6) are perpendicular to the valve mounting panel (5). Comprising:

7. An RTO lift valve according to claim 5, characterized in that, The valve plate (7) is connected to the guide rod (6) through a positioning connector, and the positioning connector is slidably sleeved on the outer side of the guide rod (6). Comprising:

8. An RTO lift valve according to claim 1, characterized in that, The bottom of the guide rod (6) is fixedly connected to the upper surface of the sealing rope (12) mounting surface. Comprising:

9. The RTO lift valve according to claim 1, characterized in that, A sealing rope (12) is fixedly connected to the upper surface of the sealing rope (12) mounting surface. Comprising:

10. A kind of RTO lift valve according to claim 1, characterized in that, Three pulleys (11) are fixedly connected to the bottom of the valve mounting panel (5), and the three pulleys (11) are arranged around the axis of the valve shaft (3). Comprising: Three pulleys (11) are fixedly connected to the bottom of the sealing rope (12) mounting surface, and the three pulleys (11) are arranged around the axis of the valve shaft (3).

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