A VOCs adsorption device

Abstract

The utility model provides a kind of VOCs adsorption device, including box, partition, several activated carbon drawers and valve plate structure, box one end is equipped with air inlet, other end is equipped with gas outlet;Partition is parallel to airflow direction and is located in the inside of the box, the inside of the box is divided into first processing area and second processing area;Several activated carbon drawers are inserted in the both sides of the box, and are divided in the first processing area and the second processing area;Valve plate structure is arranged in the both ends of the partition.The utility model is divided into first processing area and second processing area by partition in the box, and the structure of double-side activated carbon drawer arrangement is formed, under the switching of valve plate structure position state, waste gas can be guided to carry out a processing area waste gas, and another processing area is cut off with waste gas, and then after activated carbon saturation in the processing area of one side, it can be cut off, and activated carbon treatment in one-side processing area is carried out without stopping.

Description

Technical Field

[0001] This utility model relates to the field of waste gas treatment technology, specifically to a VOCs adsorption device. Background Technology

[0002] Currently, fixed-bed activated carbon adsorption boxes are widely used in industry to treat VOCs waste gas. For example, Chinese Patent 202321417474.7 discloses an activated carbon adsorption box, including a box body. An inlet box is fixedly connected to the left side of the box body, and an outlet box is fixedly connected to the right side of the box body. The inlet box has a waste gas inlet at the top, and the outlet box has a waste gas outlet on the right side. An activated carbon adsorption zone is fixedly arranged inside the box body. Industrial waste gas is introduced through the waste gas inlet. When the surface of the activated carbon comes into contact with the gas, the industrial waste gas is adsorbed on the surface of the activated carbon. The treated waste gas is discharged through the waste gas outlet on the outlet box, thereby purifying the VOCs organic waste gas to meet emission standards.

[0003] The existing technology has the following drawbacks: most activated carbon adsorption boxes are drawer-type, with a pull-out drawer on one side for placing activated carbon. The machine needs to be shut down after the activated carbon is saturated. Utility Model Content

[0004] The purpose of this invention is to overcome the above-mentioned technical deficiencies and propose a VOCs adsorption device that solves the technical problem that most activated carbon adsorption boxes in the prior art are drawer-type, with a pull-out drawer on one side for placing activated carbon, and that the device needs to be shut down after the activated carbon is saturated.

[0005] To achieve the above-mentioned technical objectives, the present invention adopts the following technical solution: This utility model provides a VOCs adsorption device, comprising: The housing has an air inlet at one end and an air outlet at the other end. A partition plate, which is parallel to the airflow direction, is located on the inner side of the box body, dividing the box body into a first processing area and a second processing area. Several activated carbon drawers are inserted into both sides of the housing and placed within the first and second processing areas, respectively; and The valve plate structure is disposed at both ends of the partition plate and includes a rotatable valve plate. The valve plate rotates and has a first position state that isolates both ends of the first processing zone, a second position state that isolates both ends of the second processing zone, and a third position state that diverts airflow to the first processing zone and the second processing zone.

[0006] In some embodiments, the valve plate structure further includes a rotation drive member, the movable end of which is connected to the valve plate for driving the valve plate to rotate and change position.

[0007] In some embodiments, the rotation drive includes a rotating shaft, a first bevel gear, a second bevel gear, a rotating rod, and a locking member. One end of the rotating shaft is fixedly connected to the valve plate, and the other end is fixedly connected to the first bevel gear. Both ends of the rotating rod are respectively connected to a second bevel gear. The first bevel gear meshes with the corresponding second bevel gear, and the rotating rod is rotatably connected to the top of the housing. The locking member is installed on the top of the housing and is used to lock the rotating rod in a first position state, a second position state, and a third position state, respectively.

[0008] In some embodiments, the locking member includes a first locking member and a second locking member. The two first locking members are symmetrically installed on the top of the housing and have a first locking end, which are respectively used to lock the rotating rod in a first position state and a second position state. The rotating rod has an upper protrusion. The second locking member is installed on the top of the housing and is used to engage with the upper protrusion of the rotating rod in a third position state to form a positioning.

[0009] In some embodiments, the first locking member includes a limiting plate and a pull rod. The limiting plate is rotatably connected to the positioning of the housing, the pull rod is connected to the top of the limiting plate, and the bottom of the limiting plate is provided with an anti-slip pad.

[0010] In some embodiments, the second locking member includes a base, a spring, and a telescopic frame. The base has a groove, the spring is built into the groove and connected to the bottom of the telescopic frame, and the telescopic frame has a U-shaped frame for fitting onto the upper protrusion of the rotating rod.

[0011] In some embodiments, both ends of the housing have gradually expanding cylindrical sections.

[0012] In some embodiments, the housing is provided with a raised edge that matches the position of the valve plate, the valve plate is provided with a sealing strip, and the sealing strip abuts against both the raised edge and the inner wall of the housing.

[0013] In some embodiments, both sides of the housing are provided with desorption air inlets and desorption air outlets, and both the desorption air inlets and desorption air outlets are provided with valves.

[0014] In some embodiments, the partition plate is a heat insulation plate.

[0015] Compared with the prior art, the VOCs adsorption device provided by this utility model divides the box into a first treatment zone and a second treatment zone by a partition plate, forming a structure with activated carbon drawers on both sides. By switching the position of the valve plate structure, the exhaust gas can be guided to one treatment zone for treatment, while the other treatment zone is isolated from the exhaust gas. Thus, after the activated carbon in one treatment zone is saturated, it can be isolated, and activated carbon treatment in one treatment zone can be carried out without stopping the machine. Furthermore, when the actual exhaust gas treatment volume increases, the position of the valve plate structure can be adjusted so that exhaust gas can be treated in both treatment zones at the same time. Attached Figure Description

[0016] Figure 1 This is a three-dimensional structural diagram of the VOCs adsorption device provided in this embodiment of the utility model; Figure 2 This is a top view of the VOCs adsorption device provided in this embodiment of the utility model; Figure 3 This is a top sectional view of the VOCs adsorption device provided in the embodiment of this utility model at its first position. Figure 4 This is a top sectional view of the second position of the VOCs adsorption device provided in this embodiment of the present invention; Figure 5 This is a top sectional view of the VOCs adsorption device provided in the embodiment of this utility model in the third position state; Figure 6 This is a partial cross-sectional view of the VOCs adsorption device provided in this embodiment of the present invention; Figure 7 This is a structural diagram of the second locking component of the VOCs adsorption device provided in this embodiment of the present invention; Figure 8 This is a utility model Figure 3 A magnified view of part A.

[0017] Explanation of reference numerals in the attached figures: 1. Housing; 1a. Air inlet; 1b. Air outlet; 101. First treatment zone; 102. Second treatment zone; 103. Diverging section; 104. Desorption air inlet; 105. Desorption air outlet; 106. Valve; 107. Rim 2. Divider; 3. Activated carbon drawer; 4. Valve plate structure; 41. Valve plate; 41a. Sealing strip; 42. Rotation drive component; 421. Rotating shaft; 422. First bevel gear; 423. Second bevel gear; 424. Rotating rod; 424a. Upper protrusion; 425. Locking component; 4251. First locking component; 4251a. Limiting plate; 4251b. Pull rod; 4252. Second locking component; 4252a. Base; 4252b. Spring; 4252c. Telescopic frame; 4252d. Slide groove; 4252e. U-shaped frame. Detailed Implementation

[0018] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0019] To address the technical problem that most activated carbon adsorption boxes are drawer-type with a single pull-out drawer for holding activated carbon, requiring shutdown for treatment after the activated carbon becomes saturated, this invention provides a VOCs adsorption device. This device divides the box into a first treatment zone and a second treatment zone using a partition plate. By switching the position of the valve plate structure, waste gas can be guided to one treatment zone for treatment, while the other treatment zone is isolated from the waste gas. Therefore, even after the activated carbon in one treatment zone becomes saturated, treatment can continue without shutting down the system. Furthermore, as the actual waste gas treatment volume increases, the valve plate structure position can be adjusted to allow simultaneous treatment in both treatment zones.

[0020] Please see Figure 1-8 This utility model provides a VOCs adsorption device, which includes a housing 1, a partition plate 2, several activated carbon drawers 3, and a valve plate structure 4. One end of the housing 1 has an air inlet 1a, and the other end has an air outlet 1b, for the entry of waste gas and the exit of VOCs after adsorption. The partition plate 2 is arranged parallel to the airflow direction on the inner side of the housing 1, dividing the housing 1 into a first treatment zone 101 and a second treatment zone 102, equivalent to two independent treatment spaces, each capable of independently facilitating waste gas flow for VOCs adsorption. Several activated carbon drawers 3... Activated carbon drawers 3 are inserted into both sides of the housing 1 and placed in the first processing area 101 and the second processing area 102 respectively. The activated carbon drawers 3 contain honeycomb activated carbon. Valve plate structures 4 are disposed at both ends of the partition plate 2, including rotatable valve plates 41. The valve plates 41 can rotate and have a first position state that isolates both ends of the first processing area 101, a second position state that isolates both ends of the second processing area 102, and a third position state that diverts airflow to the first processing area 101 and the second processing area 102. For details, please refer to [reference needed]. Figure 3 , Figure 4 and Figure 5 When the first treatment zone 101 is isolated, the air inlet 1a, the second treatment zone 102, and the air outlet 1b are connected to form a waste gas treatment channel. Conversely, when the second treatment zone 102 is isolated, the air inlet 1a, the first treatment zone 101, and the air outlet 1b are connected to form a waste gas treatment channel. In addition, when the valve plate 41 is at the middle bisector position, that is, when the valve plate 41 is parallel to the partition plate 2, the air inlet 1a, the first treatment zone 101, the second treatment zone 102, and the air outlet 1b are all connected. The waste gas flows to the first treatment zone 101 and the second treatment zone 102 on both sides. The two treatment zones simultaneously perform VOCs adsorption and then collect and discharge from the air outlet 1b.

[0021] Understandably, both the first treatment zone 101 and the second treatment zone 102 inside the box 1 are equipped with a frame structure inside the traditional activated carbon adsorption box to support the activated carbon drawer 3. The mature layout of the existing activated carbon adsorption box can be adopted to meet the requirements of inserting the activated carbon drawer 3 and guiding the flow of exhaust gas.

[0022] In one embodiment, please refer to Figure 1 , Figure 2 and Figure 6 In order to adjust the rotation of the valve plate 41, the valve plate structure 4 also includes a rotation drive 42, the movable end of which is connected to the valve plate 41 and is used to drive the valve plate 41 to rotate and change position.

[0023] Understandably, the rotation drive 42 can be mechanically driven, i.e., an existing rotation drive such as a motor, to adjust the valve plate 41 to rotate, thereby switching its angular position and achieving the switching between the first position state, the second position state, and the third position state.

[0024] Furthermore, to facilitate simultaneous driving of the partitions on both sides, the rotating drive component 42 includes a rotating shaft 421, a first bevel gear 422, a second bevel gear 423, a rotating rod 424, and a locking component 425. One end of the rotating shaft 421 is fixedly connected to the valve plate 41, meaning that each valve plate 41 at both ends of the partition is connected to a rotating shaft 421. The other end of the rotating shaft 421 is fixedly connected to the corresponding first bevel gear 422. Each end of the rotating rod 424 is connected to a second bevel gear 423. The first bevel gear 422 meshes with the corresponding second bevel gear 423. The rotating rod 424 is rotatably connected to the top of the housing 1. When the rotating rod 424 is rotated, it drives the two second bevel gears 423 to rotate, which in turn drives the two first bevel gears 422 to rotate, causing the two valve plates 41 to retract to one side, or simultaneously to the other side. Figure 3 and Figure 5As shown, the locking member 425 is installed on the top of the housing 1 and is used to lock the rotating rod 424 in the first position state, the second position state and the third position state respectively. The locking member 425 is used to limit and position the rotating rod 424.

[0025] Understandably, if automatic control is required, the motor's output shaft can be coaxially connected to the rotating rod 424 to drive the rotation.

[0026] Furthermore, to facilitate locking operations, the locking component 425 includes a first locking component 4251 and a second locking component 4252. The two first locking components 4251 are symmetrically installed on the top of the housing 1 and have a first locking end, which are used to lock the rotating rod 424 in a first position and a second position, respectively. That is, one first locking component 4251 is arranged on the front side and the other is arranged on the rear side, and locking is performed when the rotating rod 424 rotates to the front side and the rear side, respectively. The rotating rod 424 has an upper protrusion. The second locking component 4252 is installed on the top of the housing 1 and is used to sleeve the upper protrusion of the rotating rod 424 to form a positioning in the third position. The second locking component 4252 can pass over the second locking component 4252 located in the middle during the rotation of the front and rear sides through the upper protrusion. And when locking is required in the middle position, it can be locked through the second locking component 4252.

[0027] Furthermore, for ease of operation, the first locking component 4251 includes a limiting plate 4251a and a pull rod 4251b. The limiting plate 4251a is rotatably connected to the positioning of the housing 1, and the pull rod 4251b is connected to the top of the limiting plate 4251a. The bottom of the limiting plate 4251a is provided with an anti-slip pad. By rotating the limiting plate 4251a to block and limit the top of the rotating rod 424, the rotation of the rod is restricted, thereby achieving the effect of locking the valve plate 41.

[0028] Furthermore, for ease of operation, please refer to [link / reference]. Figure 7 The second locking component 4252 includes a base 4252a, a spring 4252b, and a telescopic frame 4252c. The base 4252a has a sliding groove 4252d. The spring 4252b is built into the sliding groove 4252d and connected to the bottom of the telescopic frame 4252c. The telescopic frame 4252c has a U-shaped frame 4252e for sleeved on the upper protrusion 424a of the rotating rod 424. By pressing down the U-shaped frame 4252e, the rotating rod 424 can pass over the second locking component 4252. Pressing down and releasing the U-shaped frame 4252e allows it to be sleeved on both sides of the rotating rod 424, thus forming a limit and restricting its rotation in the left and right directions, thereby achieving the effect of locking the valve plate 41.

[0029] In one embodiment, please refer to Figure 1 In order to guide the diffusion of exhaust gas, both ends of the housing 1 have a gradually expanding cylindrical section 103, which is arranged at the rear of the valve plate 41. After the valve plate 41 switches the flow channel, diffusion takes place.

[0030] Understandably, when the valve plate 41 is closed in any treatment zone, it has an inclined angle, which is the angle to guide the exhaust gas toward the open treatment zone, thus having a diversion effect.

[0031] It should be noted that the principle of the gradually expanding cylinder section 103 is the diffuser principle, which will not be elaborated on here.

[0032] For further details, please refer to Figure 8 In order to provide a seal when the valve plate 41 is closed, the housing 1 is provided with a raised edge 107 that matches the position of the valve plate 41. The valve plate 41 is provided with a sealing strip 41a, and the sealing strip 41a abuts against the raised edge and the inner wall of the housing 1. The abutment of the sealing strip 41a provides a basic sealing effect.

[0033] In one embodiment, please refer to Figure 1 In order to provide desorption function and reduce the loss of activated carbon, both sides of the box 1 are provided with desorption air inlet 104 and desorption air outlet 105. Both the desorption air inlet 104 and the desorption air outlet 105 are provided with valves 106. The activated carbon is desorbed by introducing hot air or hot steam required for desorption.

[0034] Understandably, the isolated treatment zone can be independently connected to the desorption inlet 104 and the desorption outlet 105 for desorption operations, while the treatment zone on the other side, which is connected to the inlet 1a and the outlet 1b, performs VOCs adsorption normally.

[0035] It should be noted that the arrangement of the desorption inlet 104 and the desorption outlet 105 can be referred to the attached diagram, or arranged according to the actual situation, ensuring that the desorption gas can flow through the activated carbon in each activated carbon drawer. There is no single limitation here.

[0036] Furthermore, in order to reduce the impact of heat from the desorption zone on the adsorption of the other side partition, the partition plate 2 is a heat insulation plate for heat insulation.

[0037] To better understand this utility model, the following is combined with... Figures 1 to 8The technical solution of this utility model is described in detail as follows: Under the adjustment of the rotation drive component 42, the valve plate 41 is in one of the first, second, and third position states, isolating the first treatment zone, isolating the second treatment zone, or connecting the two treatment zones; in normal waste gas treatment, single-zone treatment is carried out through the first or second treatment zone; after the activated carbon is saturated, the position of the valve plate 41 can be switched to switch zones; the unsaturated zone continues to treat waste gas, while the saturated zone can be used for activated carbon replacement or post-treatment; when there is a desorption pipeline, the saturated zone can be directly desorbed; when there is no desorption pipeline, the activated carbon drawer can be pulled out for replacement; when the actual waste gas treatment volume demand increases, the valve plate structure position state can be adjusted to allow waste gas to be treated simultaneously in both treatment zones.

[0038] The specific embodiments of this utility model described above do not constitute a limitation on the scope of protection of this utility model. Any other corresponding changes and modifications made based on the technical concept of this utility model should be included within the scope of protection of the claims of this utility model.

Claims

1. A VOCs adsorption apparatus, characterized by, include: The housing has an air inlet at one end and an air outlet at the other end. A partition plate, which is parallel to the airflow direction, is located on the inner side of the box body, dividing the box body into a first processing area and a second processing area. Several activated carbon drawers are inserted into both sides of the housing and placed within the first and second processing areas, respectively; and The valve plate structure is disposed at both ends of the partition plate and includes a rotatable valve plate. The valve plate rotates and has a first position state that isolates both ends of the first processing zone, a second position state that isolates both ends of the second processing zone, and a third position state that diverts airflow to the first processing zone and the second processing zone.

2. The VOCs adsorption apparatus according to claim 1, wherein, The valve plate structure also includes a rotation drive component, the movable end of which is connected to the valve plate for driving the valve plate to rotate and change position.

3. The VOCs adsorption apparatus of claim 2, wherein, The rotation drive includes a rotating shaft, a first bevel gear, a second bevel gear, a rotating rod, and a locking component. One end of the rotating shaft is fixedly connected to the valve plate, and the other end is fixedly connected to the first bevel gear. Both ends of the rotating rod are connected to a second bevel gear, and the first bevel gear meshes with the corresponding second bevel gear. The rotating rod is rotatably connected to the top of the housing. The locking component is installed on the top of the housing and is used to lock the rotating rod in the first position, the second position, and the third position, respectively.

4. The VOCs adsorption apparatus of claim 3, wherein, The locking component includes a first locking component and a second locking component. The two first locking components are symmetrically installed on the top of the housing and have a first locking end, which are used to lock the rotating rod in a first position state and a second position state, respectively. The rotating rod has an upper protrusion. The second locking component is installed on the top of the housing and is used to engage with the upper protrusion of the rotating rod in a third position state to form a positioning.

5. The VOCs adsorption apparatus of claim 4, wherein, The first locking component includes a limiting plate and a pull rod. The limiting plate is rotatably connected to the positioning of the box body, the pull rod is connected to the top of the limiting plate, and the bottom of the limiting plate is provided with an anti-slip pad.

6. The VOCs adsorption apparatus of claim 4, wherein, The second locking component includes a base, a spring, and a telescopic frame. The base has a sliding groove, the spring is built into the sliding groove and connected to the bottom of the telescopic frame, and the telescopic frame has a U-shaped frame for fitting onto the upper protrusion of the rotating rod.

7. The VOCs adsorption apparatus of claim 1, wherein Both ends of the box have gradually expanding cylindrical sections.

8. The VOCs adsorption device of claim 1, wherein, The housing has a raised edge that matches the position of the valve plate. The valve plate has a sealing strip, and the sealing strip abuts against the raised edge and the inner wall of the housing.

9. The VOCs adsorption apparatus of claim 1, wherein, Both sides of the housing are provided with desorption air inlets and desorption air outlets, and valves are provided on both the desorption air inlets and desorption air outlets.

10. The VOCs adsorption apparatus of claim 9, wherein, The partition plate is a heat insulation plate.

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