VOCS (volatile organic compounds) adsorption device capable of increasing adsorption duration through turbulent flow and adsorption method of VOCS adsorption device

Abstract

The invention relates to the technical field of VOCS (volatile organic compounds) removal devices, in particular to a VOCS adsorption device capable of increasing the adsorption duration through turbulent flow and an adsorption method thereof.The VOCS adsorption device capable of increasing the adsorption duration through turbulent flow comprises an adsorption tower, and a flow guide structure and an activated carbon adsorption layer are arranged in the adsorption tower; a switching assembly and a partition structure are further arranged in the adsorption tower, the switching assembly comprises a driving structure and a lifting structure, the lifting structure comprises a lifting part connected with the flow guide structure in a sliding mode, and when the driving structure acts, the lifting part can be driven to ascend and descend, meanwhile, a suction part arranged in the adsorption tower is driven to act, and therefore gas is sucked into the adsorption tower; when the lifting piece ascends and descends, the lifting piece is matched with the partition structure, the partition structure can be driven to intermittently rotate, in the intermittent rotation process of the partition structure, the flow guide structure is matched with the partition structure, the flow direction of gas penetrating through the activated carbon adsorption layer can be disturbed, and therefore the gas absorption time of the activated carbon adsorption layer is prolonged.

Description

Technical Field

[0001] The present invention relates to the technical field of VOCS removal devices, and in particular to a VOCS adsorption device and an adsorption method that increase the absorption duration by disturbing the flow. Background Art

[0002] VOCS (volatile organic compounds) refer to organic compounds that are volatile at normal temperature, and they come from waste gases in various industrial processes and daily activities. These pollutants can affect atmospheric visibility, atmospheric temperature distribution, and precipitation distribution, thereby affecting weather and climate. In addition, VOCS also participate in the formation of ozone and secondary aerosols. These pollutants have serious impacts on the environment and health, so recovery treatment is required. Common VOCS treatment methods generally include adsorption method, thermal destruction method, biological treatment method, condensation collection method, absorption method, etc.

[0003] Among them, the adsorption method utilizes the adsorption performance of the adsorbent to adsorb harmful substances in the VOCS waste gas on the solid surface, thereby realizing waste gas purification. Commonly used adsorbents include activated carbon, molecular sieve, etc. Currently, when using an activated carbon device for VOCS gas adsorption, the activated carbon adsorption device is usually connected to a spray tower, and a centrifugal fan is arranged inside the activated carbon adsorption device. During the VOCS gas adsorption operation, the rotation of the centrifuge is used to draw the gas in the spray tower into the activated carbon adsorption device for purification. In this process, the gas sucked by the centrifugal fan directly passes through the activated carbon adsorption layer arranged in the activated carbon adsorption device in the vertical direction. At this time, the contact time between the gas and the activated carbon adsorption layer is short, and the adsorption effect of the activated carbon adsorption layer on harmful substances in the VOCS gas is low. Finally, the concentration of harmful substances in the VOCS gas discharged from the activated carbon adsorption device is still relatively high and cannot meet the final emission standard. Summary of the Invention

[0004] The purpose of the present invention is to provide a VOCS adsorption device and an adsorption method that increase the absorption duration by disturbing the flow, so as to solve the problems raised in the above background art.

[0005] To achieve the above purpose, the present invention provides the following technical solutions: A VOCS adsorption device that increases the absorption duration by disturbing the flow, including: an adsorption tower, in which a flow guiding structure and an activated carbon adsorption layer are arranged; A switching component and a partition structure are also arranged in the adsorption tower. The switching component includes a driving structure and a lifting structure. The lifting structure includes a lifting member that is slidably connected to the flow guiding structure. When the driving structure operates, it can drive the lifting member to lift along the axial direction of the adsorption tower, and at the same time drive the suction member arranged in the adsorption tower to act, so as to draw the gas into the adsorption tower; When the lifting member moves up and down, the lifting member cooperates with the partition structure to drive the partition structure to rotate intermittently. During the intermittent rotation of the partition structure, the diversion structure cooperates with the partition structure to disrupt the gas flow through the activated carbon adsorption layer, thereby increasing the absorption time of the activated carbon adsorption layer for the gas.

[0006] The VOCS adsorption device for increasing the absorption duration by disturbing the flow as described above: The diversion structure includes a diversion member arranged in the adsorption tower. First diversion holes and second diversion holes are arranged at intervals on the diversion member, and the hole directions of the first diversion holes and the second diversion holes are opposite.

[0007] The VOCS adsorption device for increasing the absorption duration by disturbing the flow as described above: The partition structure includes a fixing member arranged in the adsorption tower. A rotating cylinder is rotatably installed on the fixing member. Protrusions are formed on the inner wall of the rotating cylinder, and a shielding member is arranged on the outer wall of the rotating cylinder.

[0008] The VOCS adsorption device for increasing the absorption duration by disturbing the flow as described above: The shielding member includes a shielding plate arranged on the rotating cylinder. Multiple groups of the shielding plates are arranged at equal intervals along the circumferential direction of the rotating cylinder.

[0009] The VOCS adsorption device for increasing the absorption duration by disturbing the flow as described above: The lifting member includes a lifting cylinder. The lifting cylinder is slidably connected to a guide rod arranged on the diversion member. A fitting groove is formed on the outer wall of the lifting cylinder. When the lifting cylinder moves up and down, the fitting groove cooperates with the protrusion to drive the rotating cylinder to rotate.

[0010] The VOCS adsorption device for increasing the absorption duration by disturbing the flow as described above: The fitting groove includes a first vertical groove and a second vertical groove formed on the outer wall of the lifting cylinder. A spiral groove is connected between the first vertical groove and the second vertical groove.

[0011] The VOCS adsorption device for increasing the absorption duration by disturbing the flow as described above: The driving structure includes a driving member and a reciprocating member. The driving member includes a driving rod rotatably installed in the adsorption tower. The driving rod is connected to a rotating rod rotatably installed in the adsorption tower through a belt. A driving plate is arranged on the rotating rod, and a sliding rod is arranged on the driving plate.

[0012] The VOCS adsorption device for increasing the absorption duration by disturbing the flow as described above: The reciprocating member includes a connecting rod fixedly connected to the lifting cylinder. A lifting plate is arranged at one end of the connecting rod away from the lifting cylinder. A sliding groove is formed on the lifting plate, and the sliding rod is slidably arranged in the sliding groove.

[0013] The VOCs adsorption device that increases the absorption duration through turbulence as described above: The suction member includes an impeller rotatably mounted on the guide rod, and the rotating shaft of the impeller is connected to a linkage rod rotatably mounted in the adsorption tower through a linkage belt.

[0014] A VOCs adsorption method that increases the absorption duration through turbulence is also proposed. Using the VOCs adsorption device that increases the absorption duration through turbulence as described above, it includes the following steps: Step 1: Start the variable-speed motor. The output shaft of the variable-speed motor drives the drive rod to rotate continuously in the same direction. Immediately afterwards, the drive plate and the impeller rotate continuously in the same direction; Step 2: The continuously rotating impeller pumps the gas from the air inlet into the adsorption tower and discharges it through the discharge port after passing through the activated carbon adsorption layer. During this process, the rotating drive plate drives the lifting cylinder to lift under the cooperation of the sliding rod and the lifting plate; Step 3: When the lifting cylinder lifts, the fitting groove and the protrusion cooperate to drive the rotating cylinder to rotate intermittently, so that the baffle intermittently shields the first diversion hole and the second diversion hole in turn. With the cooperation of the first diversion hole and the second diversion hole, the gas passes through the activated carbon adsorption layer in a corrugated state, thereby increasing the absorption time of the activated carbon adsorption layer for the gas.

[0015] Compared with the prior art, the beneficial effects of the present invention are: By setting the switching component and the partition structure, and using the cooperation between the driving structure and the lifting structure in the switching component, the rotating cylinder rotatably mounted in the adsorption tower can be driven to rotate intermittently. And when the rotating cylinder rotates intermittently, the first diversion hole and the second diversion hole on the diversion member can be intermittently conducted by using the shielding member provided on the rotating cylinder. At the same time, in cooperation with the suction process of the suction member for VOCs gas, the diversion member can disrupt the VOCs gas flow entering the adsorption tower, so that the VOCs gas entering the adsorption tower can pass through the activated carbon adsorption layer in a waveform motion state. Compared with the way of directly passing through the activated carbon adsorption layer, the way of passing through the activated carbon adsorption layer in a waveform state can increase the contact time between the VOCs gas and the activated carbon, thereby improving the absorption and purification rate of the activated carbon for the VOCs gas, so that the VOCs gas discharged from the adsorption tower subsequently can meet the emission standards; At the same time, by using the variable-speed motor to synchronously control the driving structure and the suction member for adaptive adjustment, the VOCs gas can always pass through the activated carbon adsorption layer in a waveform motion state, achieving the purpose of increasing the absorption time of the activated carbon adsorption layer for VOCs. Description of the Drawings

[0016] Figure 1 It is a schematic structural diagram of a VOCs adsorption device that increases the absorption duration through turbulence.

[0017] Figure 2 It is a schematic structural diagram of the interior of an adsorption tower in a VOCS adsorption device for increasing the absorption duration through turbulence.

[0018] Figure 3 It is a schematic structural diagram of the cooperation of a switching component, a partition structure, and a suction component in a VOCS adsorption device for increasing the absorption duration through turbulence.

[0019] Figure 4 It is a schematic structural diagram of a flow guiding structure in a VOCS adsorption device for increasing the absorption duration through turbulence.

[0020] Figure 5 It is a schematic structural diagram of a partition structure in a VOCS adsorption device for increasing the absorption duration through turbulence.

[0021] Figure 6 It is a schematic structural diagram of the connection between a lifting structure and a partition structure in a VOCS adsorption device for increasing the absorption duration through turbulence.

[0022] Figure 7 It is a schematic structural diagram of a switching component in a VOCS adsorption device for increasing the absorption duration through turbulence.

[0023] Figure 8 It is a schematic structural diagram of the connection between a lifting member and a reciprocating member in a VOCS adsorption device for increasing the absorption duration through turbulence.

[0024] Figure 9 It is a schematic structural diagram of a driving component in a VOCS adsorption device for increasing the absorption duration through turbulence.

[0025] In the figure: 1. Adsorption tower; 101. Installation block; 102. Lifting member; 103. Discharge port; 104. Air inlet; 2. Variable-speed motor; 3. Activated carbon adsorption layer; 4. Flow guiding member; 401. First flow guiding hole; 402. Second flow guiding hole; 5. Baffle plate; 6. Fixing member; 7. Guide rod; 701. Convex column; 8. Impeller; 9. Rotating cylinder; 901. Protrusion; 10. Lifting cylinder; 1001. Groove; 1002. First vertical groove; 1003. Spiral groove; 1004. Second vertical groove; 11. Connecting rod; 12. Lifting plate; 1201. Sliding groove; 13. Linking rod; 14. Rotating rod; 15. Driving plate; 1501. Slide bar; 16. Belt; 17. Driving rod; 18. Bevel gear set. Detailed implementation manners

[0026] The following will describe various exemplary embodiments, features, and aspects of the present application in detail with reference to the accompanying drawings. The same reference numerals in the drawings denote elements with the same or similar functions. Although various aspects of the embodiments are shown in the drawings, the drawings do not have to be drawn to scale unless otherwise specified.

[0027] As used herein, the term "exemplary" means "serving as an example, embodiment, or illustration". Any embodiment described as "exemplary" herein need not be construed as superior to or better than other embodiments.

[0028] In addition, for a better illustration of the present application, numerous specific details are given in the following specific embodiments. Those skilled in the art should understand that the present application can also be implemented without certain specific details. In some instances, methods, means, and elements well known to those skilled in the art are not described in detail so as to highlight the gist of the present application.

[0029] Please refer to Figures 1 - 9 , in the embodiment of the present invention, a VOCS adsorption device that increases the absorption duration through flow disturbance includes: An adsorption tower 1, in which a diversion structure and an activated carbon adsorption layer 3 are provided; Specifically, please refer to Figure 1 、 Figure 2 , an air inlet 104 and an exhaust port 103 are provided on the above-mentioned adsorption tower 1. The air inlet 104 is connected to a spray tower (not shown in the figure). After the VOCS gas pretreated by the spray tower enters the adsorption tower 1 through the air inlet 104, it passes through the activated carbon adsorption layer 3 and finally discharges from the exhaust port 103. During the process of the VOCS passing through the activated carbon adsorption layer 3, the activated carbon adsorption layer 3 can absorb harmful substances in the VOCS, thereby meeting the emission standards.

[0030] A switching component and a partition structure are further provided in the adsorption tower 1. The switching component includes a driving structure and a lifting structure. The lifting structure includes a lifting member slidably connected to the diversion structure. When the driving structure operates, it can drive the lifting member to lift along the axial direction of the adsorption tower 1, and at the same time drive a suction member provided in the adsorption tower 1 to act, so as to pump gas into the adsorption tower 1; The diversion structure includes a diversion member 4 provided in the adsorption tower 1. First diversion holes 401 and second diversion holes 402 are spaced apart on the diversion member 4, and the hole directions of the first diversion holes 401 and the second diversion holes 402 are opposite; Preferably, please refer to Figure 3 、 Figure 4 , the above-mentioned diversion member 4 is provided in a conical structure, and the diversion member 4 is equally divided into twelve groups of regions. The first diversion holes 401 and the second diversion holes 402 are respectively opened in adjacent two groups of regions. Referring to Figure 4 , from top to bottom, the hole direction of the first diversion hole 401 faces the axis of the diversion member 4, and the hole direction of the second diversion hole 402 is away from the axis of the diversion member 4.

[0031] The partition structure includes a fixing member 6 disposed in the adsorption tower 1, a rotating cylinder 9 is rotatably mounted on the fixing member 6, a protrusion 901 is formed on the inner wall of the rotating cylinder 9, and a shielding member is disposed on the outer wall of the rotating cylinder 9; The shielding member includes a shielding plate 5 disposed on the rotating cylinder 9, and a plurality of groups of the shielding plates 5 are equidistantly arranged along the circumferential direction of the rotating cylinder 9; Correspondingly, please refer to Figure 2 、 Figure 3 、 Figure 5 、 Figure 6 As shown in, six groups of the shielding plates 5 are symmetrically arranged along the circumferential direction of the rotating cylinder 9, and an interval is formed between two adjacent groups of the shielding plates 5. In the initial state, the six groups of the shielding plates 5 can block the first diversion holes 401 on the diversion member 4. At this time, the VOCS gas entering the adsorption tower 1 through the air inlet 104 is guided by the second diversion holes 402 and passes through the diversion member 4 in a scattered manner and contacts the activated carbon adsorption layer 3. Immediately afterwards, the rotating cylinder 9 is driven to rotate by thirty degrees, and the six groups of the shielding plates 5 will change to a state of shielding the second diversion holes 402 on the diversion member 4. At this time, the VOCS gas entering the adsorption tower 1 through the air inlet 104 is guided by the first diversion holes 401 and passes through the diversion member 4 in a converging manner, and then contacts the activated carbon adsorption layer 3. By reciprocally driving the rotating cylinder 9 to rotate, the flow of the VOCS gas can be interfered, so that the VOCS gas passes through the activated carbon adsorption layer 3 in a waveform state. Compared with the current way of directly passing through the activated carbon adsorption layer 3, the contact time between the VOCS gas and the activated carbon adsorption layer 3 is longer, thereby improving the adsorption capacity of the activated carbon adsorption layer 3 for the VOCS gas.

[0032] The lifting member includes a lifting cylinder 10, the lifting cylinder 10 is slidably connected to a guide rod 7 disposed on the diversion member 4, and a fitting groove is formed on the outer wall of the lifting cylinder 10. When the lifting cylinder 10 is lifted or lowered, the fitting groove cooperates with the protrusion 901 to drive the rotating cylinder 9 to rotate; Specifically, please refer to Figure 3 、 Figure 4 、 Figure 6 、 Figure 7 、 Figure 8 As shown in, two groups of convex columns 701 are equidistantly arranged along the circumferential direction of the outer wall of the guide rod 7, and two groups of grooves 1001 are equidistantly formed along the circumferential direction of the inner wall of the lifting cylinder 10. The convex columns 701 are adapted to the grooves 1001. With the cooperation of the convex columns 701 and the grooves 1001, the lifting cylinder 10 can only be lifted or lowered along the axial direction of the adsorption tower 1.

[0033] The fitting groove includes a first vertical groove 1002 and a second vertical groove 1004 formed on the outer wall of the lifting cylinder 10, and a spiral groove 1003 is connected between the first vertical groove 1002 and the second vertical groove 1004; When the lifting member moves up and down, the lifting member cooperates with the partition structure to drive the partition structure to rotate intermittently. During the intermittent rotation of the partition structure, the diversion structure cooperates with the partition structure to disrupt the gas flow direction passing through the activated carbon adsorption layer 3, thereby increasing the absorption time of the activated carbon adsorption layer 3 for the gas; Specifically, please refer to Figure 3 、 Figure 6 、 Figure 7 、 Figure 8 . The spiral angle of the above-mentioned spiral groove 1003 is set to 30 degrees. In the initial state, the above-mentioned protrusion 901 is located at the end of the stroke of the first vertical groove 1002 away from the spiral groove 1003. At this time, the baffle 5 shields the first diversion hole 401. When the driving structure acts to drive the lifting cylinder 10 to descend, the protrusion 901 can first slide in the first vertical groove 1002. At this time, the position of the rotating cylinder 9 remains unchanged, maintaining the conduction state of the second diversion hole 402. Until the spiral groove 1003 contacts the protrusion 901, with the continuous descent of the lifting cylinder 10, the contact extrusion of the spiral groove 1003 wall on the protrusion 901 can force the rotating cylinder 9 to rotate. Until the spiral groove 1003 separates from the protrusion 901, the rotating cylinder 9 just rotates 30 degrees, so that the baffle 5 rotates 30 degrees to switch to shielding the second diversion hole 402. Subsequently, during the descent of the lifting cylinder 10, the protrusion 901 can slide in the second vertical groove 1004. During this process, the baffle 5 can maintain the conduction state of the first diversion hole 401. Until the end of the stroke of the second vertical groove 1004 away from the spiral groove 1003 combines with the protrusion 901, the lifting cylinder 10 descends to the lowest position. Immediately afterwards, the driving structure drives the lifting cylinder 10 to rise. During the rising process, the protrusion 901 slides along the second vertical groove 1004. When the spiral groove 1003 contacts the protrusion 901, the contact friction of the spiral groove 1003 wall on the protrusion 901 can force the rotating cylinder 9 to rotate in the reverse direction. Until the spiral groove 1003 separates from the protrusion 901, the baffle 5 returns to the shielding state of the first diversion hole 401. Subsequently, the combination of the first vertical groove 1002 and the protrusion 901 can maintain the state of the baffle 5. By repeating such operations, the VOCS gas entering the adsorption tower 1 can pass through the activated carbon adsorption layer 3 in a waveform state, thereby increasing the absorption time of the activated carbon adsorption layer 3 for the gas.

[0034] Furthermore, please refer to Figure 3 、 Figure 6 、 Figure 7 、Figure 8 , Figure 9 , the driving structure includes a driving member and a reciprocating member. The driving member includes a driving rod 17 rotatably installed in the adsorption tower 1. The driving rod 17 is connected to a rotating rod 14 rotatably installed in the adsorption tower 1 through a belt 16. A driving plate 15 is provided on the rotating rod 14, and a sliding rod 1501 is provided on the driving plate 15; Specifically, please refer to Figure 2 、 Figure 3 , the above driving structure is arranged on a mounting block 101 arranged in the adsorption tower 1, and a lifting member 102 is arranged on the outer wall of the adsorption tower 1. A variable-speed motor 2 is installed on the lifting member 102. The output shaft of the variable-speed motor 2 is coaxially and fixedly connected to the driving rod 17. By starting the variable-speed motor 2, the driving rod 17 can be driven to rotate continuously in the same direction, and then the driving plate 15 can be driven to rotate, so as to drive the reciprocating member to drive the lifting cylinder 10 to reciprocate up and down, so as to achieve the purpose of intermittently rotating the rotating cylinder 9.

[0035] Specifically, please refer to Figure 3 、 Figure 6 、 Figure 7 、 Figure 8 、 Figure 9 , the reciprocating member includes a connecting rod 11 fixedly connected to the lifting cylinder 10. A lifting plate 12 is provided at one end of the connecting rod 11 away from the lifting cylinder 10. A chute 1201 is provided on the lifting plate 12, and the sliding rod 1501 is slidably arranged in the chute 1201; When the variable-speed motor 2 is started and drives the driving rod 17 to rotate continuously in the same direction, the rotating rod 14 can drive the driving plate 15 to rotate. At this time, the sliding rod 1501 makes a circular motion with the rotating rod 14 as the axis. During this process, due to the cooperation restriction between the convex column 701 and the groove 1001, the sliding rod 1501 can slide in the chute 1201, and during the sliding process, the contact extrusion of the sliding rod 1501 on the chute wall of the chute 1201 can drive the lifting plate 12 to reciprocate up and down, and under the connection action of the connecting rod 11, the lifting plate 12 that moves up and down can drive the lifting cylinder 10 to reciprocate up and down, and then drive the rotating cylinder 9 to rotate.

[0036] The suction member includes an impeller 8 rotatably mounted on the guide rod 7. The rotating shaft of the impeller 8 is connected to a linkage rod 13 rotatably mounted in the adsorption tower 1 through a linkage belt. The linkage rod 13 is connected to the drive rod 17 through a bevel gear set 18. The bevel gear set 18 includes a first bevel gear and a second bevel gear. The first bevel gear is coaxially fixed to the drive rod 17, and the second bevel gear is coaxially fixed to the linkage rod 13. When the variable-speed motor 2 is started, when the drive rod 17 drives the drive plate 15 to rotate continuously in the same direction, it can simultaneously drive the linkage rod 13 to rotate under the cooperation of the bevel gear set 18, and then drive the impeller 8 to rotate. At this time, the centrifugal force generated by the rotating impeller 8 can suck the VOCS gas pretreated by the spray tower into the adsorption tower 1 from the air inlet 104. At the same time, the drive plate 15 can drive the rotating cylinder 9 to rotate intermittently under the cooperation of the lifting plate 12 and the lifting cylinder 10, so that the VOCS gas sucked into the adsorption tower 1 by the impeller 8 can pass through the activated carbon adsorption layer 3 in a wave-like motion state, thereby increasing the absorption time of the activated carbon adsorption layer 3 for VOCS and improving the purification efficiency of the activated carbon adsorption layer 3 for VOCS gas; At the same time, when adjusting the variable-speed motor 2, the intermittent rotation time of the rotating cylinder 9 and the rotation speed of the impeller 8 can be changed synchronously. When the gas flow rate is faster, the switching time interval of the rotating cylinder 9 is shorter, so that the VOCS gas can always pass through the activated carbon adsorption layer 3 in a wave-like motion state, achieving an increase in the absorption time of the activated carbon adsorption layer 3 for VOCS.

[0037] A VOCS adsorption method for increasing the absorption duration by turbulence is also proposed. Using the above-mentioned VOCS adsorption device for increasing the absorption duration by turbulence, it includes the following steps: Step 1: Start the variable-speed motor 2. The output shaft of the variable-speed motor 2 drives the drive rod 17 to rotate continuously in the same direction. Immediately afterwards, the drive plate 15 and the impeller 8 rotate continuously in the same direction; Step 2: The continuously rotating impeller 8 sucks the gas from the air inlet 104 into the adsorption tower 1 and discharges it from the discharge port 103 after passing through the activated carbon adsorption layer 3. During this process, the rotating drive plate 15 drives the lifting cylinder 10 to lift and lower under the cooperation of the sliding rod 1501 and the lifting plate 12; Step 3: When the lifting cylinder 10 lifts and lowers, the fitting groove and the protrusion 901 cooperate to drive the rotating cylinder 9 to rotate intermittently, so that the baffle plate 5 intermittently covers the first diversion hole 401 and the second diversion hole 402 in turn. Under the cooperation of the first diversion hole 401 and the second diversion hole 402, the gas passes through the activated carbon adsorption layer 3 in a corrugated state, thereby increasing the absorption time of the activated carbon adsorption layer 3 for the gas.

[0038] For those skilled in the art, it is obvious that the present invention is not limited to the details of the above-described exemplary embodiments, and the present invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the present invention. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting. The scope of the present invention is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be embraced within the present invention. Any reference signs in the claims should not be construed as limiting the claims involved.

[0039] In addition, it should be understood that although this specification is described in terms of embodiments, not every embodiment only contains an independent technical solution. This narrative manner of the specification is only for clarity. Those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A VOCS adsorption device that increases the absorption time by turbulence, characterized in that: include: An adsorption tower (1), wherein a flow guide structure and an activated carbon adsorption layer (3) are arranged in the adsorption tower (1); The adsorption tower (1) is further provided with a switching component and a barrier structure, the switching component comprising a driving structure and a lifting structure, the lifting structure comprising a lifting member slidably connected to the flow guide structure, and when the driving structure is actuated, the lifting member can be driven to move up and down along the axial direction of the adsorption tower (1), and at the same time drive a suction member arranged in the adsorption tower (1) to move, thereby drawing gas into the adsorption tower (1); When the lifting member is lifted or lowered, the lifting member cooperates with the barrier structure to drive the barrier structure to rotate intermittently, and during the intermittent rotation of the barrier structure, the guide structure cooperates with the barrier structure to disrupt the flow of gas passing through the activated carbon adsorption layer (3), thereby increasing the absorption time of the activated carbon adsorption layer (3) for the gas.

2. The VOCS adsorption device for increasing the absorption time by turbulence according to claim 1, characterized in that: The flow guide structure comprises a flow guide member (4) arranged in the adsorption tower (1), the flow guide member (4) being provided with first flow guide holes (401) and second flow guide holes (402) at intervals, and the first flow guide holes (401) and the second flow guide holes (402) are oriented in opposite directions.

3. The VOCS adsorption device for increasing the absorption time by turbulence according to claim 2, characterized in that: The barrier structure comprises a fixing member (6) arranged in the adsorption tower (1), a rotating cylinder (9) being rotatably mounted on the fixing member (6), a protrusion (901) being formed on the inner wall of the rotating cylinder (9), and a shielding member being arranged on the outer wall of the rotating cylinder (9).

4. The VOCS adsorption device for increasing the absorption time by turbulence according to claim 3, characterized in that: The shielding member comprises shielding plates (5) arranged on the rotating cylinder (9), and a plurality of groups of shielding plates (5) are arranged at equal intervals along the circumferential direction of the rotating cylinder (9).

5. The VOCS adsorption device for increasing the absorption time by turbulence according to claim 3, characterized in that: The lifting member comprises a lifting cylinder (10), the lifting cylinder (10) being slidably connected to a guide rod (7) arranged on the guide member (4), and an engaging groove is provided on the outer wall of the lifting cylinder (10), and when the lifting cylinder (10) is lifted or lowered, the engaging groove cooperates with the protrusion (901) to drive the rotating cylinder (9) to rotate.

6. The VOCS adsorption device for increasing the absorption time by turbulence according to claim 5, characterized in that: The engaging groove comprises a first vertical groove (1002) and a second vertical groove (1004) which are opened on the outer wall of the lifting cylinder (10), and a spiral groove (1003) is connected between the first vertical groove (1002) and the second vertical groove (1004).

7. The VOCS adsorption device for increasing the absorption time by turbulence according to claim 5, characterized in that: The driving structure comprises a driving member and a reciprocating member, wherein the driving member comprises a driving rod (17) rotatably mounted in the adsorption tower (1), the driving rod (17) being connected to a rotating rod (14) rotatably mounted in the adsorption tower (1) via a belt (16), the rotating rod (14) being provided with a driving plate (15), and the driving plate (15) being provided with a sliding rod (1501).

8. The VOCS adsorption device for increasing the absorption time by turbulence according to claim 7, characterized in that: The reciprocating member comprises a connecting rod (11) fixedly connected to the lifting cylinder (10); a lifting plate (12) is provided at one end of the connecting rod (11) away from the lifting cylinder (10); a sliding groove (1201) is provided on the lifting plate (12); and the sliding rod (1501) is slidably arranged in the sliding groove (1201).

9. The VOCS adsorption device for increasing the absorption time by turbulence according to claim 5, characterized in that: The suction member comprises an impeller (8) rotatably mounted on the guide rod (7), and the rotating shaft of the impeller (8) is connected to a linkage rod (13) rotatably mounted in the adsorption tower (1) via a linkage belt.

10. A VOCS adsorption method for increasing the absorption time by turbulence, characterized in that: The VOCS adsorption device for increasing the absorption time by turbulence as claimed in claim 1 comprises the following steps: Step 1: starting the variable speed motor (2), the output shaft of the variable speed motor (2) drives the driving rod (17) to continuously rotate in the same direction, and then the driving plate (15) and the impeller (8) continuously rotate in the same direction; Step 2: The impeller (8) continuously rotates in the same direction to pump gas from the air inlet (104) into the adsorption tower (1), and the gas passes through the activated carbon adsorption layer (3) and is discharged from the discharge port (103). During this process, the rotating drive plate (15) drives the lifting cylinder (10) to move up and down in cooperation with the sliding rod (1501) and the lifting plate (12); Step three: When the lifting cylinder (10) is lifted or lowered, the engaging groove cooperates with the protrusion (901) to drive the rotating cylinder (9) to rotate intermittently, so that the shielding plate (5) intermittently shields the first guide hole (401) and the second guide hole (402) in turn. With the cooperation of the first guide hole (401) and the second guide hole (402), the gas passes through the activated carbon adsorption layer (3) in a corrugated state, thereby increasing the absorption time of the activated carbon adsorption layer (3) for the gas.

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