Switching valve for a regenerative oxidation device

Abstract

This utility model belongs to the field of switching valve technology, and in particular to a switching valve for a regenerative oxidation device. It includes a switching valve body, on which an inlet pipe and an outlet pipe are fixedly mounted. Multiple outlet pipes are provided. A receiving cavity is formed within the switching valve body, and the inlet and outlet pipes communicate with the receiving cavity. A switching valve block is rotatably mounted within the receiving cavity. An intermittent switching component is provided on one side of the switching valve body, and the intermittent switching component is connected to the switching valve block. This utility model replaces the traditional switching valve block, which requires manual operation of control keys to deliver waste gas to different heat storage bodies. This allows for more precise control of the switching valve block's waste gas flow direction switching, thus preventing the waste gas from switching to the next heat storage body too late and affecting the waste gas treatment effect of the previous heat storage body.

Description

Technical Field

[0001] This utility model relates to the field of switching valve technology, specifically a switching valve for a regenerative oxidation device. Background Technology

[0002] A regenerative thermal oxidizer (RTO) is a device used for industrial waste gas treatment. It primarily uses high-temperature oxidation reactions to oxidize and decompose harmful substances in the waste gas (such as organic solvents and volatile organic compounds (VOCs)) into harmless carbon dioxide and water vapor. Its core principle is to completely decompose harmful components in the waste gas through high-temperature oxidation, while simultaneously utilizing thermal storage technology to improve energy efficiency and reduce energy consumption.

[0003] The switching valve in a Regenerative Thermal Oxidizer (RTO) is a crucial component, primarily used to redirect waste gas flow to different regenerators (heat exchangers) to achieve a cyclical process of heat recovery and oxidation. RTOs typically have multiple regenerators that need to periodically alternate operation to maintain high efficiency. The switching valve's role is to periodically guide the waste gas to different regenerators, ensuring each regenerator has sufficient time to store heat and exchange it. In one cycle, waste gas flows through one regenerator, which absorbs heat from the waste gas. When the regenerator reaches a certain heat level, the switching valve reverses the flow, directing the waste gas to a cooler regenerator, while the hotter regenerator releases heat for oxidation. This alternating process ensures efficient oxidation of the waste gas while minimizing external energy consumption.

[0004] Currently, the switching valves in commonly used regenerative thermal oxidation devices require manual operation of the control key to switch the flow direction of exhaust gas. Manual switching of exhaust gas flow direction has a switching delay. If the delay is too long, the exhaust gas will switch to the next heat storage body later, which will affect the exhaust gas treatment effect of the previous heat storage body.

[0005] Therefore, we propose a switching valve for a regenerative oxidation device to solve the above problems. Utility Model Content

[0006] (a) Technical problems to be solved

[0007] To address the shortcomings of existing technologies, this utility model provides a switching valve for a regenerative oxidation device, which solves the problems mentioned in the background section.

[0008] (II) Technical Solution

[0009] To achieve the above objectives, this utility model specifically adopts the following technical solution:

[0010] A switching valve for a regenerative thermal oxidation device includes a switching valve body. An inlet pipe and an outlet pipe are fixedly mounted on the switching valve body. Multiple outlet pipes are provided. A receiving cavity is formed within the switching valve body, and the inlet pipe and outlet pipe communicate with the receiving cavity. A switching valve block is rotatably mounted within the receiving cavity. An intermittent switching component is provided on one side of the switching valve body, and the intermittent switching component is connected to the switching valve block. A push-pull component is provided between the intermittent switching component and the switching valve body. A groove is formed at one end of the switching valve block, and an air guide groove is formed on the switching valve block, communicating with the groove. The intermittent switching component is used to drive the switching valve block to rotate intermittently, allowing the waste gas passing through the switching valve block to be intermittently guided to different outlet pipes.

[0011] Furthermore, the intermittent switching assembly includes a fixed plate disposed on one side of the switching valve body. A driving plate and a driven plate are rotatably disposed on one side wall of the fixed plate. A locking protrusion is fixedly disposed on the driving plate, and a plurality of locking grooves are formed on the driven plate. The locking protrusion on the driving plate and the locking groove on the driven plate are positioned corresponding to each other.

[0012] Furthermore, the driven disk has a mating groove located between two adjacent engaging grooves. A protective shell is fixedly mounted on the fixing plate, and a first servo motor is fixedly mounted on the protective shell. The output end of the first servo motor passes through the protective shell and connects with the driving disk.

[0013] Furthermore, a drive shaft is fixedly mounted on the driven plate, and one end of the drive shaft passes through the fixed plate and docks with the switching valve block inside the switching valve body.

[0014] Furthermore, the push-pull assembly includes two sets of connecting plates, each set of connecting plates having two plates. The two connecting plates are respectively fixedly connected to the fixed plate and the switching valve body. Each connecting plate has two sliding grooves. A cross push-pull plate is provided between the two connecting plates. The two ends of the cross push-pull plate are respectively slidably disposed in the sliding grooves on the two connecting plates.

[0015] Furthermore, two connecting rods are provided between the two cross push-pull plates, and the two ends of the two connecting rods are respectively connected to the two cross push-pull plates. Each connecting rod is fixedly provided with a connecting block.

[0016] Furthermore, a second servo motor is provided on one side of the connecting block. The second servo motor is fixedly connected to the switching valve body. A threaded rod is connected to the output end of the second servo motor. A fixed base is rotatably provided at one end of the threaded rod. The threaded rod passes through the two connecting blocks by threads. The fixed base is fixedly connected to the switching valve body.

[0017] (III) Beneficial Effects

[0018] Compared with the prior art, this utility model provides a switching valve for a regenerative oxidation device, which has the following advantages:

[0019] This invention replaces the traditional switching valve block, which requires manual operation of the control key to deliver exhaust gas to different heat storage bodies, with the setting of an intermittent switching component. This allows for more precise control of the switching valve block on the timing of exhaust gas switching, thus avoiding the situation where the exhaust gas is switched to the next heat storage body too late, which would affect the exhaust gas treatment effect of the previous heat storage body. Attached Figure Description

[0020] Figure 1 This is a first-person perspective schematic diagram of the overall structure of this utility model;

[0021] Figure 2 This is a second-view schematic diagram of the overall structure of this utility model;

[0022] Figure 3 This is a cross-sectional view of the present invention;

[0023] Figure 4 This is a perspective view of the push-pull component of this utility model;

[0024] Figure 5 This is a first-person exploded view of the intermittent switching component of this utility model;

[0025] Figure 6 This is a second-view exploded view of the intermittent switching component of this utility model.

[0026] In the diagram: 1. Switching valve body; 2. Inlet pipe; 3. Outlet pipe; 4. Switching valve block; 41. Groove; 42. Air guide groove; 5. Intermittent switching assembly; 501. Fixing plate; 502. Active disc; 503. Driven disc; 504. Engaging protrusion; 505. Engaging groove; 506. Mating groove; 507. Protective shell; 508. First servo motor; 6. Push-pull assembly; 601. Connecting plate; 602. Slide groove; 603. Cross push-pull plate; 604. Connecting rod; 605. Connecting block; 606. Second servo motor; 6061. Threaded rod; 607. Fixed base. Detailed Implementation

[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0028] Example

[0029] like Figure 1-6 As shown in the figure, a switching valve for a regenerative oxidation device according to one embodiment of the present invention includes a switching valve body 1. An inlet pipe 2 and an outlet pipe 3 are fixedly disposed on the upper part of the switching valve body 1. Multiple outlet pipes 3 are provided. A receiving cavity is opened inside the switching valve body 1. The inlet pipe 2 and the outlet pipe 3 communicate with the receiving cavity. A switching valve block 4 is rotatably disposed inside the receiving cavity. An intermittent switching component 5 is provided on one side of the switching valve body 1. The intermittent switching component 5 is connected to the switching valve block 4. A push-pull component 6 is provided between the intermittent switching component 5 and the switching valve body 1. A groove 41 is opened at one end of the switching valve block 4. An air guide groove 42 is opened on the switching valve block 4. The air guide groove 42 communicates with the groove 41. The intermittent switching component 5 is used to drive the switching valve block 4 to rotate intermittently, so that the waste gas passing through the switching valve block 4 can be intermittently guided to different outlet pipes 3.

[0030] like Figure 5 and Figure 6 As shown, the intermittent switching assembly 5 includes a fixed plate 501 disposed on one side of the switching valve body 1. A driving disc 502 and a driven disc 503 are rotatably disposed on one side wall of the fixed plate 501. A locking protrusion 504 is fixedly disposed on the driving disc 502, and multiple locking grooves 505 are formed on the driven disc 503. The locking protrusions 504 on the driving disc 502 and the locking grooves 505 on the driven disc 503 correspond to each other. A mating groove 506 is formed on the driven disc 503, located between two adjacent locking grooves 505. A protective shell 507 is fixedly disposed on the fixed plate 501, and a first servo motor 508 is fixedly disposed on the protective shell 507. The output end of the first servo motor 508 passes through the protective shell 507 and connects with the driving disc 502. A drive shaft is fixedly disposed on the driven disc 503, and one end of the drive shaft passes through the fixed plate 501 and connects with the switching valve block 4 inside the switching valve body 1.

[0031] The intermittent switching component 5 replaces the traditional switching valve block 4, which requires manual operation of the control key to deliver the exhaust gas to different heat storage bodies. This allows for more precise control of the switching valve block 4 on the timing of the exhaust gas switching flow, thus avoiding the exhaust gas switching to the next heat storage body too late, which would affect the exhaust gas treatment effect of the previous heat storage body.

[0032] like Figure 4As shown, the push-pull assembly 6 includes two sets of connecting plates 601, with two connecting plates in each set. The two connecting plates 601 are respectively fixedly connected to the fixed plate 501 and the switching valve body 1. Each connecting plate 601 has two sliding grooves 602. A cross push-pull plate 603 is provided between the two connecting plates 601, with both ends of the cross push-pull plate 603 slidably disposed within the sliding grooves 602 on the two connecting plates 601. Two connecting rods 604 are provided between the two cross push-pull plates 603, with both ends of the two connecting rods 604 connected to the two cross push-pull plates 603 respectively. Each connecting rod 604 has a connecting block 605 fixedly disposed on it. A second servo motor 606 is provided on one side of the connecting block 605. The second servo motor 606 is fixedly connected to the switching valve body 1. The output end of the second servo motor 606 is connected to a threaded rod 6061. One end of the threaded rod 6061 is rotatably provided with a fixed base 607. The threaded rod 6061 passes through the two connecting blocks 605 by threads. The fixed base 607 is fixedly connected to the switching valve body 1.

[0033] The push-pull assembly 6 allows the switching valve block 4 inside the switching valve body 1 to be pushed and pulled, so that the exhaust gas delivered to the switching valve body 1 can be delivered to multiple heat storage bodies through multiple exhaust pipes 3, thereby accelerating the exhaust gas treatment efficiency.

[0034] The working principle of this practical application is as follows:

[0035] First, the exhaust gas is conveyed into the switching valve body 1 through the inlet pipe 2. The exhaust gas conveyed into the switching valve body 1 is guided by the groove 41 and blown into the air guide trough 42. The exhaust gas inside the air guide trough 42 is then conveyed to the heat storage body through the corresponding outlet pipe 3, thereby treating the exhaust gas. When it is necessary to switch the conveyed exhaust gas to other heat storage bodies, the first servo motor 508 is started. The first servo motor 508 drives the active disk 502 connected to it to rotate. When the engaging protrusion 504 on the active disc 502 is engaged in the engaging groove 505 on the driven disc 503, the active disc 502 drives the driven disc 503 to rotate. The driven disc 503 drives the switching valve block 4 to rotate via the drive shaft. When the air guide groove 42 on the switching valve block 4 rotates to the other exhaust pipe 3 corresponding to its position, the exhaust gas in the exhaust pipe 3 will be transported to the heat storage body corresponding to the position of the exhaust pipe 3. When the engaging protrusion 504 on the active disc 502 moves away from the driven disc... When the engaging slot 505 on 503 rotates out, the switching valve block 4 stops rotating. At this time, the exhaust gas will be continuously transported to the heat storage body corresponding to the position of the exhaust pipe 3. This process can be repeated. (If it is necessary to transport the exhaust gas to multiple heat storage bodies at the same time, start the second servo motor 606. The second servo motor 606 drives the threaded rod 6061 to rotate. The threaded rod 6061 drives the two connecting blocks 605 to move in opposite directions. The connecting blocks 605 drive one end of the cross push-pull plate 603 to merge through the connecting rod 604. The merging of one end of the cross push-pull plate 603 pushes the fixed plate 501 towards one side wall of the switching valve body 1. The fixed plate 501 drives the driven plate 503 to move. The driven plate 503 drives the switching valve block 4 to move into one end of the switching valve body 1. At this time, the receiving cavity is connected to the inlet pipe 2 and multiple exhaust pipes 3. The exhaust gas transported to the receiving cavity will be transported to multiple heat storage bodies through multiple exhaust pipes 3. This method can only be used for a short time.)

[0036] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A switching valve for a regenerative oxidation device, comprising a switching valve body (1), characterized in that: An air inlet pipe (2) and an air outlet pipe (3) are fixedly installed on the upper part of the switching valve body (1). Multiple air outlet pipes (3) are provided. A receiving cavity is opened inside the switching valve body (1). The air inlet pipe (2) and the air outlet pipe (3) are connected to the receiving cavity. A switching valve block (4) is rotatably installed inside the receiving cavity. An intermittent switching component (5) is provided on one side of the switching valve body (1). The intermittent switching component (5) is connected to the switching valve block (4). A push-pull component (6) is provided between the intermittent switching component (5) and the switching valve body (1). A groove (41) is opened at one end of the switching valve block (4). An air guide groove (42) is opened on the switching valve block (4). The air guide groove (42) is connected to the groove (41). The intermittent switching component (5) is used to drive the switching valve block (4) to rotate intermittently, and the exhaust gas passing through the switching valve block (4) can be intermittently guided to different air outlet pipes (3).

2. The switching valve of a regenerative thermal oxidation apparatus according to claim 1, wherein: The intermittent switching assembly (5) includes a fixed plate (501) disposed on one side of the switching valve body (1). A driving plate (502) and a driven plate (503) are rotatably disposed on one side wall of the fixed plate (501). A locking protrusion (504) is fixedly disposed on the driving plate (502). A plurality of locking grooves (505) are opened on the driven plate (503). The locking protrusions (504) on the driving plate (502) and the locking grooves (505) on the driven plate (503) are positioned corresponding to each other.

3. The switching valve of the regenerative oxidation device according to claim 2, characterized in that: The driven disk (503) has a mating groove (506) located between two adjacent engaging grooves (505). A protective shell (507) is fixedly installed on the fixed plate (501). A first servo motor (508) is fixedly installed on the protective shell (507). The output end of the first servo motor (508) passes through the protective shell (507) and connects with the driving disk (502).

4. The switching valve of a regenerative oxidizer according to claim 2, characterized by: A drive shaft is fixedly installed on the driven plate (503), and one end of the drive shaft passes through the fixed plate (501) and docks with the switching valve block (4) inside the switching valve body (1).

5. The switching valve of a regenerative thermal oxidation apparatus according to claim 1, wherein: The push-pull assembly (6) includes two sets of connecting plates (601). Each set of connecting plates (601) has two plates. The two connecting plates (601) are fixedly connected to the fixed plate (501) and the switching valve body (1) respectively. Each connecting plate (601) has two sliding grooves (602). A cross push-pull plate (603) is provided between the two connecting plates (601). The two ends of the cross push-pull plate (603) are slidably disposed in the sliding grooves (602) on the two connecting plates (601).

6. The switching valve of a regenerative thermal oxidation apparatus according to claim 5, wherein: Two connecting rods (604) are provided between the two cross push-pull plates (603). The two ends of the two connecting rods (604) are respectively connected to the two cross push-pull plates (603). A connecting block (605) is fixedly provided on each connecting rod (604).

7. The switching valve of the regenerative oxidation device according to claim 6, characterized in that: A second servo motor (606) is provided on one side of the connecting block (605). The second servo motor (606) is fixedly connected to the switching valve body (1). The output end of the second servo motor (606) is connected to a threaded rod (6061). One end of the threaded rod (6061) is rotatably provided with a fixed base (607). The threaded rod (6061) passes through the two connecting blocks (605) by threads. The fixed base (607) is fixedly connected to the switching valve body (1).

Images