Zeolite wheel adsorption concentration device for VOC gas treatment

Abstract

The application discloses a zeolite rotary adsorption concentration device for VOC gas treatment and relates to the technical field of rotary adsorption devices.The application comprises an adsorption wheel, and a group of air inlet and outlet structures is arranged on the adsorption zone, the regeneration zone and the cooling zone of the adsorption wheel respectively.The air inlet and outlet structures comprise air inlet structures and air outlet structures which are oppositely arranged on the two sides of the adsorption wheel;several air outlets are arranged on the side of the air inlet structures close to the adsorption wheel at equal intervals along the length direction, and the air outlet flow rate of the air outlets is sequentially increased from the center of the adsorption wheel to the outside;the air outlet structures and the air inlet structures are the same in structure, and are arranged along the radial direction of the end surface of the adsorption wheel.The air inlet structures and the air outlet structures are arranged on the two sides of the adsorption wheel, and the air outlet flow rate of the air outlets on the air inlet structures and the air outlet structures is sequentially increased from the center of the adsorption wheel to the outside, so that the problem of low service life of the adsorption whole in the prior art is solved.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of rotary adsorption devices, in particular to a zeolite rotary adsorption and concentration device for VOC gas treatment. BACKGROUND

[0002] Organic waste gas (VOC) treatment refers to the treatment of organic waste gas generated in the industrial production process by adsorption, filtration and purification. The purification of organic waste gas is divided into recovery type technology and destruction type technology. The recovery type technology includes absorption, adsorption, condensation, separation, etc.; and the destruction type technology includes combustion, biodegradation, photocatalysis, etc., and the zeolite rotary adsorption and concentration device belongs to the combination of the two. The zeolite rotary adsorption and concentration device is internally separated into an adsorption zone and a desorption zone, and the zeolite rotary wheel continuously rotates through the adsorption zone and the desorption zone. A large flow of low concentration waste gas enters the adsorption zone, and the organic substances in the waste gas are adsorbed by the zeolite rotary wheel. Then, the organic substances adsorbed on the zeolite rotary wheel are desorbed by introducing a desorption gas stream, forming a small flow of high concentration waste gas and being introduced into an incinerator for incineration treatment. In this way, through the rotation operation of the zeolite rotary wheel, the steps of continuous adsorption and desorption of the zeolite rotary wheel are repeated, so that the organic substances contained in the waste gas passing through the zeolite rotary adsorption and concentration device are reduced to the emission standard, and then discharged into the atmosphere.

[0003] CN108905513B discloses a rotary regeneration adsorption type air purifier, one side of the first treatment zone is connected with a first air inlet pipe, the other side is connected with a first air outlet pipe, one side of the first regeneration zone is connected with a second air inlet pipe, the other side is connected with a second air outlet pipe, one side of the first cooling zone is connected with a third air inlet pipe, the other side is connected with a third air outlet pipe; and CN213077964U discloses an organic waste gas molecular sieve adsorption and concentration purification device, which includes a left wall, a left end of an organic waste gas input pipe connected with a pre-filter, a right end of the organic waste gas input pipe connected with a VOC concentration rotary wheel, the other side of the VOC concentration rotary wheel connected with a waste gas output pipe, the waste gas output pipe fixed on a right wall, and a right end of the waste gas output pipe connected with a waste gas treatment fan. The existing rotary regeneration adsorption type device has a certain service life of the adsorption layer on the rotary wheel that can adsorb gaseous pollutants. Therefore, when using the existing air inlet mode, after a period of operation, the unit volume adsorption layer near the center of the adsorption rotary wheel will adsorb and release more amount of gaseous pollutants, and the unit volume adsorption layer far from the center of the adsorption rotary wheel will adsorb and release less amount of gaseous pollutants. Based on this, the adsorption layer at the center of the adsorption rotary wheel will reach the upper limit of the service life first, and the overall adsorption layer on the adsorption rotary wheel will be directly adsorbed, thereby reducing the service life of the adsorption layer. SUMMARY

[0004] The zeolite rotary adsorption concentration device for VOC gas treatment provided by the present application solves the problem of low service life of the adsorption whole in the prior art by arranging the gas inlet structure and the gas outlet structure on both sides of the adsorption wheel and increasing the gas outlet flow rate of the gas outlets on the gas inlet structure and the gas outlet structure from the center of the adsorption wheel to the outside.

[0005] To solve the above technical problems, the present application is realized by the following technical scheme:

[0006] The zeolite rotary adsorption concentration device for VOC gas treatment provided by the present application solves the problem of low service life of the adsorption whole in the prior art by arranging the gas inlet structure and the gas outlet structure on both sides of the adsorption wheel and increasing the gas outlet flow rate of the gas outlets on the gas inlet structure and the gas outlet structure from the center of the adsorption wheel to the outside.

[0007] As a preferred technical scheme of the present application, the gas inlet structure comprises a rectangular shell, one side of the rectangular shell is provided with a gas inlet, and the gas inlet and the gas outlet are arranged on adjacent two side surfaces of the rectangular shell.

[0008] As a preferred technical scheme of the present application, the rectangular shell is further connected with a pressure adjusting structure, and a gas pressure sensor is arranged in the rectangular shell; an adjusting module for adjusting the cross-sectional area of the gas outlet is arranged at the gas outlet; the gas outlet is in a rectangular shape, the adjusting module comprises grooves arranged at opposite two inner side walls of the gas outlet, springs A are connected with movable plates sliding along the inner walls of the grooves in the grooves, a support member is connected between the two movable plates, the support member comprises a support block with inclined surfaces A arranged on two sides; a protrusion is arranged on the outer side of the movable plate, an inclined surface B is arranged at the end of the protrusion and matched with the inclined surface A; a adjusting screw for driving the support block to move in a direction perpendicular to the surface of the adsorption wheel is further included; a connecting column is arranged on the inner side wall of the rectangular shell opposite to the gas outlet and is threadedly connected with the adjusting screw; a spring B is further connected between the support block and the inner side wall of the rectangular shell, and the adjusting screw penetrates through the support block.

[0009] As a preferred technical scheme of the present application, a adsorption box is further included, the adsorption wheel and the gas inlet and outlet structure are installed in the adsorption box; the pressure adjusting structure is arranged outside the adsorption box; the pressure adjusting structure comprises a vertically arranged pipe body, a piston is arranged in the pipe body, the top of the piston is connected with a movable rod, and a damping sleeve matched with the movable rod is arranged at the top of the pipe body.

[0010] As a preferred technical scheme of the present application, the damping sleeve comprises a sleeve body with a matching movable rod channel, a rectangular opening is formed on a side wall of the sleeve body along the length direction, and a rotating wheel with 2N friction surfaces is matched and installed at the rectangular opening; a U-shaped bracket is arranged on the outer side wall of the sleeve body on both sides of the rectangular opening, T-shaped sliding grooves are arranged on the two inner side walls of the U-shaped bracket, a sliding block C is matched and arranged in the T-shaped sliding grooves, and springs C are connected between the sliding block C and the sleeve body; an adjusting bolt whose end surface abuts against a friction surface is arranged on the U-shaped bracket; a rectangular through hole is arranged on the bottom of one of the T-shaped sliding grooves along the length direction, a protruding column penetrating through the rectangular through hole is connected to one side of the sliding block C, a circular plate is arranged at the end of the protruding column, and a blind hole matched with the friction surface is arranged on the circular plate; rotating shafts are rotatably and matchingly installed on the sliding block C on both sides of the rotating wheel, one of the rotating shafts penetrates through the sliding block C, the protruding column and the circular plate in sequence, and a rod is connected to the end of the rotating shaft, the end of the rod is connected with a plug-in rod inserted into the blind hole through a spring D; the friction coefficients of the 2N friction surfaces increase in sequence, and N is an integer greater than 0.

[0011] As a preferred technical scheme of the present application, three groups of air inlet and outlet structures at the adsorption area, the regeneration area and the cooling area are sequentially marked as A air inlet and outlet, B air inlet and outlet and C air inlet and outlet; the air inlet structure of the A air inlet and outlet is connected with the organic waste gas input pipe, and the air outlet structure thereof is connected with the organic waste gas output pipe; the air inlet structure of the B air inlet and outlet is connected with the heat source gas input pipe, and the air outlet structure thereof is connected with the heat source gas output pipe; the air inlet structure of the cooling area is connected with the cold source gas input pipe, and the air outlet structure thereof is connected with the cold source gas output pipe.

[0012] As a preferred technical scheme of the present application, the air inlet end of the heat source gas input pipe is connected with a heating device, the air inlet end of the heating device is connected with the cold source gas output pipe, and a three-way regulating valve is arranged on the cold source gas output pipe; a flow meter A and a gas sensor A for detecting the VOC concentration in the gas are arranged on the heat source gas input pipe; a flow meter B and a gas sensor B for detecting the VOC concentration in the gas are arranged on the organic waste gas input pipe; the flow meter A, the gas sensor A, the flow meter B and the gas sensor B are connected with a processor, and the processor is connected with a display module and / or an alarm module.

[0013] As a preferred technical scheme of the present application, the alarm control method of the alarm module comprises:

[0014] Step 1, starting up, controlling the periodic rotation of the adsorption rotating wheel and starting timing,

[0015] Step 2, in the first running cycle t, the amount of organic waste gas input through the organic waste gas input pipe is counted by the flow meter A and the gas sensor A to obtain V0; at the same time, the amount of organic waste gas output through the organic waste gas output pipe is counted by the flow meter B and the gas sensor B to obtain V1.

[0016] Step 3, repeat step 2, count the input organic waste gas to obtain V01, and count the output organic waste gas to obtain V11;

[0017] Step 4, analyze V01 and V11, and when V11 is greater than or equal to n*V01, an alarm is sent.

[0018] The n is a constant between 0 and 1.

[0019] As a preferred technical solution of the application, the organic waste gas output pipe is provided with a gas sensor C connected with the processor; when the gas sensor C detects that the VOC concentration in the organic waste gas output pipe reaches the set threshold, the alarm module sends an alarm.

[0020] As a preferred technical solution of the application, it further comprises a waste heat recovery system for recovering waste heat from the heat source gas output pipe; the cold source gas output pipe and the heating device are communicated with a jacket heat exchanger, the cold source gas output pipe and the heating device are communicated with the refrigerant input end and the refrigerant output end of the jacket heat exchanger respectively, the heat source gas output pipe is communicated with the heat medium input end of the jacket heat exchanger, and the heat medium output end of the jacket heat exchanger is communicated with the VOC treatment device.

[0021] The application has the following beneficial effects:

[0022] 1. The application sets the air inlet structure and the air outlet structure on both sides of the adsorption runner, and the air outlet flow rate at the air outlets of the air inlet structure and the air outlet structure increases from the center of the adsorption runner to the outside, thereby solving the problem of low overall service life of the adsorption in the prior art.

[0023] The application sets the pressure adjusting structure, ensures that the internal pressure of the rectangular shell is greater than the external air pressure, thereby conveniently controls the internal and external pressures at the four air outlets of the rectangular shell to be the same, and further conveniently controls the gas flow rates overflowing to the outside through the four air outlets to be the same, and finally realizes the adjustment of the flow rate at the air outlets by adjusting the sizes of the air outlets.

[0024] In use, the control support block is stretched and contracted along the vertical air outlet cross section direction, and the gap between the two movable plates is adjusted by using the slope B and the slope A and the spring A, thereby adjusting the flow rate at the air outlet.

[0025] Of course, implementing any of the products of the application does not necessarily require that all of the above-mentioned advantages be achieved at the same time. BRIEF DESCRIPTION OF DRAWINGS

[0026] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings needed for the embodiments will be briefly introduced as follows. Obviously, the drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained from these drawings without creative labor.

[0027] Figure 1 Structure diagram of the zeolite rotary adsorption concentration device of the present application;

[0028] Figure 2 Structure diagram of the zeolite rotary adsorption concentration device of the present application; Figure 1

[0029] Figure 3 Structure diagram of the zeolite rotary adsorption concentration device of the present application;

[0030] Figure 4 Structure diagram of the zeolite rotary adsorption concentration device of the present application; Figure 3

[0031] Structure diagram of the zeolite rotary adsorption concentration device of the present application; Figure 5 Figure 4 Structure diagram of the zeolite rotary adsorption concentration device of the present application;

[0032] Figure 6 Structure diagram of the zeolite rotary adsorption concentration device of the present application;

[0033] Figure 7 Figure 1 Structure diagram of the zeolite rotary adsorption concentration device of the present application;

[0034] Figure 8 Structure diagram of the zeolite rotary adsorption concentration device of the present application; Figure 2

[0035] Figure 9 Structure diagram of the zeolite rotary adsorption concentration device of the present application; Figure 8

[0036] Structure diagram of the zeolite rotary adsorption concentration device of the present application; Figure 10 Figure 8 Structure diagram of the zeolite rotary adsorption concentration device of the present application;

[0037] Figure 11 Figure 10 Structure diagram of the zeolite rotary adsorption concentration device of the present application;

[0038] Figure 12 Structure diagram of the zeolite rotary adsorption concentration device of the present application. DETAILED DESCRIPTION

[0039] ​​​​​​Clearly, the described embodiments are merely a part of the embodiments of the present application, but not all the embodiments. Based on the embodiments in the present application, all the other embodiments obtained by a person of ordinary skill in the art without creative effort shall fall within the protection scope of the present application.

[0040] In the description of the present application, it should be understood that the terms "opening", "upper", "lower", "thickness", "top", "middle", "length", "inner", "periphery" and the like indicate the orientation or positional relationship, which are merely for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the indicated component or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation of the present application.

[0041] Please refer to Figure 1 As shown in Figures 1-2 The present application is a zeolite rotary adsorption concentration device for VOC gas treatment, which comprises an adsorption wheel 1 formed with an adsorption zone, a regeneration zone and a cooling zone, and three groups of air inlet and outlet structures arranged at the adsorption zone, the regeneration zone and the cooling zone, respectively. Each group of air inlet and outlet structures comprises an air inlet structure 2 and an air outlet structure 3 arranged opposite to each other on both sides of the adsorption wheel 1, and the air outlet structure 3 and the air inlet structure 2 are structurally identical and arranged along the radial direction of the end surface of the adsorption wheel 1.

[0042] Based on the above, as Figure 3 In order to ensure that the adsorption wheel 1 completes the adsorption treatment of the same / volume of organic waste gas at each position along the radial direction within a unit volume in a use cycle as much as possible, the air inlet structure 2 in the present application is provided with four air outlet ports 22 arranged at equal intervals along the length direction on the side close to the adsorption wheel 1, and the air outlet flow of the four air outlet ports 22 is controlled to increase sequentially from the center of the adsorption wheel 1 to the outside.

[0043] Specifically, it can be understood that the four air outlet ports 22 are arranged at 1 / 8 radius, 3 / 8 radius, 5 / 8 radius and 7 / 8 radius of the adsorption wheel 1, respectively, and the air outlet flow of the four air outlet ports 22 at 1 / 8 radius, 3 / 8 radius, 5 / 8 radius and 7 / 8 radius is set to 1, 9, 25 and 49, respectively. Of course, in some possible embodiments, the air outlet flow of the four air outlet ports 22 can also be set to 2, 7, 14, 28, 2, 4, 8, 12, and 3, 7, 12, 18, etc. in any ratio relationship according to actual needs.

[0044] It can be understood that, in the present application, in order to ensure that the internal and external pressures at the four gas outlets 22 are the same, and then facilitate the control of the same gas flow rate overflowing outward through the four gas outlets 22, the air pressure in the rectangular shell 20 needs to be dynamically adjusted during actual use. A pressure adjusting structure can be provided in communication with the rectangular shell 20. An air pressure sensor is arranged in the rectangular shell 20. Through the arrangement of the pressure adjusting structure, it is ensured that the internal pressure of the rectangular shell 20 is greater than the external air pressure, thereby facilitating the control of the same internal and external pressures at the four gas outlets 22 of the rectangular shell 20, and then facilitating the control of the same gas flow rate overflowing outward through the four gas outlets 22. Finally, it is realized that the adjustment of the flow rate at the gas outlet 22 is facilitated by adjusting the size of the gas outlet 22.

[0045] Based on the above, in order to adjust the outlet cross-sectional area of the gas outlet 22, as Figures 3-5 In the present application, an adjusting module for adjusting the cross-sectional area of the gas outlet 22 is arranged at the gas outlet 22. The gas outlet 22 is in a rectangular shape. The adjusting module includes grooves 221 arranged at the opposite two inner side walls of the gas outlet 22. The grooves 221 are connected with movable plates 223 sliding along the inner walls of the grooves 221 through springs A 222. During use, the gap between the two movable plates 223 is adjusted, and then the flow rate at the gas outlet 22 is adjusted.

[0046] It can be understood that, as Figures 3-5 The present application provides an adjusting mode and structure for adjusting the gap between the two movable plates 223. Specifically, a support member is arranged between the two movable plates 223. The outer sides of the two movable plates 223 are each provided with a protrusion 224, and the end of the protrusion 224 is provided with an inclined surface B 225. Meanwhile, a support member abutting against the two protrusions 224 is arranged in the region between the two movable plates 223 and can be extended and retracted along the direction perpendicular to the cross section of the gas outlet 22. The support member includes a support block 23, and inclined surfaces A 231 cooperating with the inclined surface B 225 are arranged on both sides of the support block 23. During use, the support block 23 is controlled to extend and retract along the direction perpendicular to the cross section of the gas outlet 22. With the action of the inclined surface B 225 and the inclined surface A 231, and the spring A 222, the gap between the two movable plates 223 is adjusted during use, and then the flow rate at the gas outlet 22 is adjusted.

[0047] Of course, the adjusting structure of the present application can also use a telescopic member connected / abutting to the two movable plates 223 at both ends. The gap between the two movable plates 223 is adjusted by the telescopic adjustment of the telescopic member, and then the flow rate at the gas outlet 22 is adjusted.

[0048] It can be understood that, in the above, in order to facilitate the control of the support telescopic, the adjusting screw 24 is arranged to drive the support block 23 to move along the vertical surface of the adsorption runner 1, the adjusting screw 24 penetrates the support block 23, one end of the adjusting screw 24 abuts against the support block 23, and the other end is connected to the connecting column 201, the connecting column 201 is arranged on the inner side wall of the rectangular shell 20 opposite the air outlet 22, and the spring B202 is further connected between the support block 23 and the inner side wall of the rectangular shell 20, and the depth of the support block 23 is controlled by the cooperation of the adjusting screw 24 and the spring B202.

[0049] Meanwhile, in the present application, the air inlet structure 2 includes a rectangular shell 20, one side of the rectangular shell 20 is provided with an air inlet 21, and the air inlet 21 and the air outlet 22 are arranged on the adjacent two side surfaces of the rectangular shell 20, so as to avoid that when the air inlet 21 and the air outlet 22 are arranged on the opposite two side surfaces of the rectangular shell 20, the high-speed airflow entering through the air inlet 21 directly impacts the air outlet 22.

[0050] It can be understood that, in the present application, a pressure adjusting structure is provided, such as Figures 7-12 , the pressure adjusting structure includes a vertically arranged pipe body 5, a piston 51 is arranged in the pipe body 5, the top of the piston 51 is connected to a movable rod 52, the top of the pipe body 5 is provided with a damping sleeve 53 matched with the movable rod 52, and the space pressure of the pipe body 5 and the rectangular shell 20 is dynamically adjusted by moving the piston 51 up and down along the inner wall of the pipe body 5.

[0051] Of course, in the present application, in order to adjust the pressure difference between the two sides of the air outlet 22 according to the needs, the present application adjusts the frictional resistance between the damping sleeve 53 and the movable rod 52. Based on this, the present application provides a frictional resistance adjusting mode and structure.

[0052] Specifically, as Figures 7-12 , the damping sleeve 53 includes a sleeve body 530 with a channel matched with the movable rod 52, a rectangular opening 531 is formed on one side wall of the sleeve body 530 along the length direction thereof, and a rotating wheel 54 with four friction surfaces 541 is matched and installed at the rectangular opening 531, the friction coefficients of the friction surfaces 541 increase in turn, and in use, the corresponding friction surface 541 is controlled to be attached to one side of the movable rod 52 by rotating the rotating wheel 54 according to the needs.

[0053] As Figures 7-12In order to conveniently control the rotation of the rotating wheel 54 and control any friction surface 541 of the rotating wheel 54 to be attached to one side of the movable rod 52, in the application, a U-shaped frame 55 is arranged on the outer side wall of the sleeve body 530 located at both sides of the rectangular opening 531, T-shaped sliding grooves 551 are arranged on the two inner side walls of the U-shaped frame 55, sliding blocks C 552 are matched and arranged in the T-shaped sliding grooves 551, and springs C are connected between the sliding blocks C 552 and the sleeve body 530; an adjusting bolt 554 is arranged on the U-shaped frame 55 and abuts against one friction surface 541, and in order to avoid that the adjusting bolt 554 causes damage to the friction surface 541, a rubber pad layer is arranged at the end of the adjusting bolt 554; a rectangular through hole 555 is arranged at the bottom of one T-shaped sliding groove 551 along the length direction, one side of the sliding block C 552 at this position is connected with a protruding column 556 penetrating through the rectangular through hole 555, a circular plate 557 is arranged at the end of the protruding column 556, and rotating shafts 542 are rotatably and cooperatively arranged on the sliding blocks C 552, one rotating shaft 542 penetrates through the sliding block C 552, the protruding column 556 and the circular plate 557 in sequence, and a rod 543 is connected at the end of the rotating shaft 542; in use, the rotation of the rotating wheel 54 is controlled by controlling the rotation of the rod 543, and then any friction surface 541 is adjusted to be attached to one side of the movable rod 52 according to the requirement; of course, the rod 543 and the rotating shaft 542 are in L shape, a plug-in rod 545 is connected to the end of the rod 543 through a spring D 544, a plurality of blind holes 558 corresponding to the number of the friction surfaces 541 are arranged on the circular plate 557, and after any friction surface 541 is controlled to be attached to one side of the movable rod 52, the plug-in rod 545 is controlled to be inserted into the corresponding blind hole 558.

[0054] Of course, in some simple embodiments, the pressure adjusting structure can also be replaced by an air bag.

[0055] It can be specifically understood that the adsorption box 10 is further included, the adsorption rotating wheel 1 and the inlet and outlet gas structure are both arranged in the adsorption box 10, and the pressure adjusting structure is arranged outside the adsorption box 10.

[0056] It can be understood that in some possible specific embodiments, three groups of inlet and outlet gas structures located at the adsorption area, the regeneration area and the cooling area are sequentially marked as A inlet and outlet gas, B inlet and outlet gas and C inlet and outlet gas; the inlet gas structure 2 of the A inlet and outlet gas is connected with the organic waste gas input pipe 101, and the outlet gas structure 3 thereof is connected with the organic waste gas output pipe 102; the inlet gas structure 2 of the B inlet and outlet gas is connected with the heat source gas input pipe 103, and the outlet gas structure 3 thereof is connected with the heat source gas output pipe 104; the inlet gas structure 2 of the cooling area is connected with the cold source gas input pipe 105, and the outlet gas structure 3 thereof is connected with the cold source gas output pipe 106.

[0057] The heat source gas input pipe 103 is provided with a flow meter A and a gas sensor A for detecting the VOC concentration in the gas; the machine waste gas input pipe 101 is provided with a flow meter B and a gas sensor B for detecting the VOC concentration in the gas; the flow meter A, the gas sensor A, the flow meter B and the gas sensor B are connected to a processor, and the processor is connected to a display module and / or an alarm module.

[0058] The alarm control method based on the above alarm module comprises:

[0059] Step 1, starting, controlling the adsorption runner 1 to rotate periodically and starting timing,

[0060] Step 2, in the first running period t, the amount of organic waste gas input through the organic waste gas input pipe 101 is counted by the flow meter A and the gas sensor A to obtain V0; at the same time, the amount of organic waste gas output through the organic waste gas output pipe 102 is counted by the flow meter B and the gas sensor B to obtain V1;

[0061] Step 3, repeating step 2, the input amount of organic waste gas is accumulated to obtain V01, and the output amount of organic waste gas is accumulated to obtain V11;

[0062] Step 4, analyzing V01 and V11, when V11 is greater than or equal to 0.75 times V01, an alarm is sent.

[0063] Of course, in the present application, the alarm module can send a voice alarm through a beehive or a loudspeaker, and a three-color lamp can also be used for alarm. After the alarm module sends an alarm, it indicates that the service life of the adsorption runner 1 has reached the upper limit, that is, the adsorption runner 1 needs to be replaced at this time.

[0064] Of course, in order to enhance safety and the effect of the adsorption runner 1 on the treatment of organic waste gas, and to avoid the adsorption runner 1 from not being able to completely adsorb the organic components in the organic waste gas, a gas sensor C connected to the processor is arranged in the organic waste gas output pipe 102; when the gas sensor C detects that the VOC concentration in the organic waste gas output pipe 102 reaches a set threshold, the alarm module sends an alarm.

[0065] Of course, since the hot gas input through the heat source gas input pipe 103 in the regeneration area heats the adsorption runner 1, in the cooling area, the adsorption runner 1 needs to be cooled by cold gas. In the present application, the cold gas becomes hot air after cooling the adsorption runner 1. In order to maximize the use of heat energy, such as Figure 6The cold source gas output pipe 106 is communicated with the heating device 4, and the heating device 4 is communicated with the air inlet end of the heat source gas input pipe 103; of course, since the gas consumption for cooling the adsorption runner 1 is greater than the gas consumption for heating the adsorption runner 1 at the regeneration area, the three-way regulating valve 107 is arranged on the cold source gas output pipe 106, and the remaining gas outlet end of the three-way regulating valve 107 is communicated with air.

[0066] Of course, the waste heat system for recovering waste heat of the heat source gas output pipe 104 is also included; the sleeve heat exchanger is communicated between the cold source gas output pipe 106 and the heating device 4, the cold source gas output pipe 106 and the heating device 4 are respectively communicated with the refrigerant input end and the refrigerant output end of the sleeve heat exchanger, the heat source gas output pipe 104 is communicated with the heat medium input end of the sleeve heat exchanger, and the heat medium output end of the sleeve heat exchanger is communicated with the VOC treatment device.

[0067] In the description of the present specification, the description referring to the terms "one embodiment", "an example", "a specific example" and the like means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. In the present specification, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0068] The preferred embodiments of the application disclosed above are only used to help explain the application. The preferred embodiments do not describe all the details, nor limit the application to the specific embodiments described. Obviously, many modifications and variations can be made according to the content of the present specification. The present specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the application, so that those skilled in the art can well understand and utilize the application. The application is limited only by the claims and their full scope and equivalents.

Claims

1. A zeolite wheel adsorption concentration device for VOC gas treatment, characterized by: Including adsorption runner (1), the adsorption zone, the regeneration zone and the cooling zone opposite to the adsorption runner (1) are respectively provided with a group of air inlet and outlet structure, the air inlet and outlet structure includes air inlet structure (2) and air outlet structure (3) oppositely arranged on both sides of adsorption runner (1); The air inlet structure (2) is provided with several air outlets (22) along the length direction at equal intervals on the side close to adsorption runner (1), and the air outlet flow of air outlet (22) is sequentially increased from the center of adsorption runner (1) to the outside; The air inlet structure (2) includes a rectangular shell (20), one side of the rectangular shell (20) is provided with an air inlet (21), and the air inlet (21) and the air outlet (22) are arranged on the adjacent two sides of the rectangular shell (20) The air outlet structure (3) and the air inlet structure (2) are the same structure, and are arranged along the radius direction of the end surface of the adsorption runner (1); The rectangular shell (20) is also connected with a pressure adjusting structure, and the rectangular shell (20) is provided with an air pressure sensor; The air outlet (22) is provided with an adjusting module for adjusting the cross-sectional area of the air outlet (22); The air outlet (22) is rectangular, and the adjusting module includes grooves (221) arranged on the opposite two inner side walls of the air outlet (22), the grooves (221) are connected with movable plates (223) sliding along the inner wall of the groove (221) through springs A (222), the two movable plates (223) are connected with support pieces, the support pieces include support blocks (23) with inclined surfaces A (231) arranged on both sides, the outer side of the movable plate (223) is provided with a protrusion (224), and the end of the protrusion (224) is provided with an inclined surface B (225) matched with the inclined surface A (231); Further comprising an adjusting screw (24) for driving the support block (23) to move along the direction perpendicular to the surface of the adsorption runner (1); A connecting column (201) is arranged on the inner side wall of the rectangular shell (20) opposite to the air outlet (22) and is threadedly connected with the adjusting screw (24), and a spring B (202) is further connected between the support block (23) and the inner side wall of the rectangular shell (20), and the adjusting screw (24) penetrates the support block (23).

2. A zeolite wheel adsorption concentration device for VOC gas treatment according to claim 1, characterized in that, Further comprising an adsorption box (10), the adsorption runner (1) and the air inlet and outlet structure are installed in the adsorption box (10), and the pressure adjusting structure is arranged outside the adsorption box (10); The pressure adjusting structure includes a vertically arranged pipe body (5), the pipe body (5) is provided with a piston (51), the top of the piston (51) is connected with a movable rod (52), and the top of the pipe body (5) is provided with a damping sleeve (53) matched with the movable rod (52).

3. A zeolite wheel adsorption concentration device for VOC gas treatment according to claim 2, characterized in that, The damping sleeve (53) includes a sleeve body (530) with a channel matched with the movable rod (52), a rectangular opening (531) is formed on one side wall of the sleeve body (530) along the length direction thereof, and a rotating wheel (54) with 2N friction surfaces (541) is matched and installed at the rectangular opening (531). A U-shaped frame (55) is arranged on the outer side wall of the sleeve body (530) on both sides of the rectangular opening (531), two inner side walls of the U-shaped frame (55) are provided with T-shaped sliding grooves (551), a sliding block C (552) is matched and arranged in the T-shaped sliding groove (551), and a spring C is connected between the sliding block C (552) and the sleeve body (530); An adjusting bolt (554) is arranged on the U-shaped frame (55) and abuts against a friction surface (541); One side of the sliding block C (552) is connected with a protruding column (556) penetrating through the rectangular through hole (555) in the length direction, an end of the protruding column (556) is provided with a circular plate (557), and the circular plate (557) is provided with a blind hole (558) matched with the friction surface (541); Two sides of the rotating wheel (54) are provided with rotating shafts (542) rotatably and matchingly arranged on the sliding block C (552), one rotating shaft (542) penetrates through the sliding block C (552), the protruding column (556) and the circular plate (557) in sequence, and an end of the rotating shaft (542) is connected with a rod (543), an end of the rod (543) is connected with a plug-in rod (545) inserted into the blind hole (558) through a spring D (544); Friction coefficients of 2N friction surfaces (541) increase in sequence, and N is an integer greater than 0.

4. A zeolite wheel adsorption concentration device for VOC gas treatment according to claim 1, characterized in that, Three groups of air inlet and outlet structures located at the adsorption area, the regeneration area and the cooling area are sequentially marked as A air inlet and outlet, B air inlet and outlet and C air inlet and outlet; The air inlet structure (2) of the A air inlet and outlet is connected with the organic waste gas input pipe (101), and the air outlet structure (3) thereof is connected with the organic waste gas output pipe (102); The air inlet structure (2) of the B air inlet and outlet is connected with the heat source gas input pipe (103), and the air outlet structure (3) thereof is connected with the heat source gas output pipe (104); The air inlet structure (2) of the cooling area is connected with the cold source gas input pipe (105), and the air outlet structure (3) thereof is connected with the cold source gas output pipe (106).

5. A zeolite wheel adsorption concentration device for VOC gas treatment according to claim 4, characterized in that, A heating device (4) is connected to the air inlet end of the heat source gas input pipe (103), the air inlet end of the heating device (4) is connected with the cold source gas output pipe (106), and a three-way adjusting valve (107) is arranged on the cold source gas output pipe (106); A flow meter A and a gas sensor A for detecting VOC concentration in gas are arranged on the heat source gas input pipe (103); A flow meter B and a gas sensor B for detecting VOC concentration in gas are arranged on the organic waste gas input pipe (101); The flow meter A, the gas sensor A, the flow meter B and the gas sensor B are connected with a processor, and the processor is connected with a display module and / or an alarm module.

6. A zeolite wheel adsorption concentration device for VOC gas treatment according to claim 5, characterized in that, The alarm control method of the alarm module comprises: Step 1, starting up, controlling the adsorption rotating wheel (1) to rotate periodically and starting timing, Step 2, in the first running period t, the amount of organic waste gas input through the organic waste gas input pipe (101) is counted by the flow meter A and the gas sensor A to obtain V0; at the same time, the amount of organic waste gas output through the organic waste gas output pipe (102) is counted by the flow meter B and the gas sensor B to obtain V1; Step 3, repeat step 2 to accumulate the input amount of organic waste gas to obtain V01, and at the same time, accumulate the output amount of organic waste gas to obtain V11; Step 4, analyze V01 and V11, and when V11 is greater than or equal to n*V01, an alarm is sent. The n is a constant between 0 and 1.

7. A zeolite wheel adsorption concentration device for VOC gas treatment according to claim 6, characterized in that, The organic waste gas output pipe (102) is provided with a gas sensor C connected with the processor; when the gas sensor C detects that the VOC concentration in the organic waste gas output pipe (102) reaches the set threshold value, the alarm module sends an alarm.

8. A zeolite wheel adsorption concentration device for VOC gas treatment according to claim 6, characterized in that, Further comprising a waste heat system for waste heat recovery of the heat source gas output pipe (104); the cold source gas output pipe (106) and the heating device (4) are communicated with a jacketed heat exchanger, the cold source gas output pipe (106) and the heating device (4) are communicated with the refrigerant input end and the refrigerant output end of the jacketed heat exchanger respectively, the heat source gas output pipe (104) is communicated with the heat medium input end of the jacketed heat exchanger, and the heat medium output end of the jacketed heat exchanger is communicated with the VOC treatment device.

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