VOCs (Volatile Organic Compounds) adsorption and condensation treatment device

Abstract

The invention relates to the technical field of VOCs waste gas treatment, in particular to a VOCs adsorption and condensation treatment device. Comprising a base, a boss is fixedly connected to the base, and a bottom plate is fixedly connected to the boss; the side wall of the bottom plate is fixedly connected with a plurality of groups of limiting blocks, the plurality of groups of limiting blocks are fixedly connected with sliding columns, and the top ends of the plurality of groups of sliding columns are fixedly connected with a top bracket; a plurality of groups of sliding columns are slidably connected with a sliding plate, a second electromagnetic valve is opened, so that the sliding plate moves downwards to extrude a telescopic air bag, VOCs waste gas in the telescopic air bag is discharged through a first gas guide pipe, the VOCs waste gas is collected through the telescopic air bag, and after the amount of the VOCs waste gas reaches a preset value, further treatment is performed; therefore, the problems that waste gas cannot be timely collected due to intermittent exhaust of the chemical equipment and resources are wasted due to continuous work of the adsorption condensing device when the equipment is not exhausted are avoided.

Description

Technical Field

[0001] The present invention belongs to the technical field of VOCs waste gas treatment, and particularly relates to a VOCs adsorption and condensation treatment device. Background Technique

[0002] Volatile organic compounds (VOCs) are one of the main pollutants emitted by industries, and they come from industries such as petrochemical, printing, painting, and pharmaceutical industries. They are toxic and carcinogenic, and are easily involved in photochemical reactions to form ozone and PM2.5, which pose significant hazards to the environment and human health. With the tightening of environmental protection regulations (such as the "Atmospheric Pollution Prevention and Control Law" in China and the EU VOCs Directive), there is an urgent need for efficient treatment technologies.

[0003] During the production process of chemical equipment, VOCs waste gas is intermittently generated. Traditional VOCs waste gas treatment devices do not have the function of collecting VOCs waste gas. It is necessary to collect the VOCs waste gas generated by chemical equipment first and then transport it to the VOCs waste gas treatment device for treatment. This increases the labor cost and transportation cost during the transportation process, and also increases the risk of VOCs waste gas leakage. Or directly connect the intake end of the VOCs waste gas treatment device to the exhaust gas end of the chemical equipment. In this way, the VOCs waste gas treatment device needs to operate continuously for recovery, so that the speed of VOCs waste gas entering cannot be controlled, resulting in a high no-load rate and large energy consumption of the device, causing waste of energy.

[0004] After retrieval, in the prior art, the authorized patent document with the publication number CN222586020U and the publication date of March 11, 2025 discloses a VOCs condensation adsorption desorption regeneration deep treatment device, including a condensation barrel. A receiving groove is fixedly connected to the side surface of the condensation barrel, a drain port is fixedly connected to the side surface of the condensation barrel, an air inlet pipe is fixedly connected to the upper surface of the condensation barrel, a mounting frame is fixedly connected to the upper surface of the condensation barrel, a chute is arranged on the upper surface of the mounting frame, and a water outlet plate is movably connected to the lower surface of the mounting frame. A clamping plate is fixedly connected to the side surface of the water outlet plate. Through the above structure, the condensed water is sprayed onto the surface of the air inlet pipe through the water outlet pipe, the connecting pipe and the first water pump to preliminarily degrade the waste gas, and the dust in the air is dusted during the spraying process, and is cooled by the natural wind during the falling process. The waste gas enters the condensation barrel for secondary condensation and degradation, increasing the condensation effect and making the waste gas treatment more thorough. The condensed water makes three turns in the condensation barrel, the receiving groove and the cooling box, so that the condensed water can be cooled in time.

[0005] However, this device still has the following defects: Although the waste gas treatment can be made more thorough through secondary condensation, this device cannot collect the VOCs waste gas before treatment, resulting in the inability to control the speed of VOCs waste gas entering, resulting in a high no-load rate and large energy consumption of the device, causing waste of energy. Summary of the invention

[0006] In view of the above problems, the present invention provides a VOCs adsorption condensation treatment device, comprising a base, a boss is fixedly connected to the base, and a bottom plate is fixedly connected to the boss;

[0007] The side wall of the bottom plate is fixedly connected with a plurality of groups of limit blocks, each of the plurality of groups of limit blocks is fixedly connected with a sliding column, and the top of each of the plurality of groups of sliding columns is fixedly connected with a top bracket;

[0008] A plurality of groups of sliding columns are slidably connected with sliding plates, and a telescopic airbag is arranged between the sliding plate and the bottom plate;

[0009] A telescopic rod is fixedly connected to the center of the top end of the sliding plate, a resisting block is fixedly connected to the top end of the telescopic rod, and a pressure sensor for monitoring the gas content in the telescopic airbag is installed at the center of the bottom end of the top bracket;

[0010] An air inlet pipe is provided at the bottom end of the bottom plate, and the air inlet end of the air inlet pipe is connected to the exhaust pipe of the chemical equipment;

[0011] A first air duct is provided at the bottom end of the base plate, a pretreatment box for pre-cooling the VOCs waste gas is provided on one side of the base, an adsorption tank for adsorbing and desorbing the VOCs waste gas is provided at one end of the pretreatment box, and an air outlet end of the first air duct passes through the pretreatment box and is connected to the interior of the adsorption tank.

[0012] Furthermore, a first solenoid valve is provided on the air inlet pipe, the first solenoid valve is a one-way valve, the air outlet end of the air inlet pipe is interconnected with the interior of the telescopic airbag, and a second solenoid valve is provided on the first air guide pipe, the second solenoid valve is a one-way valve, and the air inlet end of the first air guide pipe is interconnected with the interior of the telescopic airbag.

[0013] Furthermore, an L-shaped bracket is fixedly connected to the pretreatment box, a first motor is installed on the top of the L-shaped bracket, an output end of the first motor is transmission-connected to a screw rod, an internally threaded pressure plate is threadedly connected to the screw rod, a through hole is opened on the internally threaded pressure plate, the through hole is movably fitted with an adjacent group of sliding columns, and one end of the internally threaded pressure plate extends to the top of the sliding plate.

[0014] Furthermore, the pretreatment box is an open box, the first air duct runs through the interior of the pretreatment box, and heat dissipation windows are provided on both side walls of the pretreatment box. A group of heat dissipation windows are fixedly connected to the inner wall with a horizontal plate, and another group of heat dissipation windows are installed with a plurality of first heat dissipation fins on the inner wall. A precooling mechanism is provided in the pretreatment box.

[0015] Further, the pre-cooling mechanism includes two groups of first fixing plates, both of the two groups of first fixing plates are fixedly connected to the outer wall of one side of the pretreatment box, a worm is rotatably connected between the two groups of first fixing plates, a plurality of groups of worm wheels are meshed and connected to the worm, a plurality of groups of worm wheels are rotatably connected to a cross plate, a plurality of groups of air-cooling fans are rotatably connected to the other side wall of the cross plate, the air-cooling fan includes a bearing and a plurality of groups of fan blades, and the bearings of the plurality of groups of air-cooling fans are respectively fixedly connected to the centers of the plurality of groups of worm wheels.

[0016] Further, one end of the worm penetrates through a group of first fixing plates and is fixedly connected to a first driven belt pulley, a first belt is sleeved on the first driven belt pulley, the other end of the first belt is sleeved with a first driving belt pulley, a second fixing plate is arranged at the bottom end of the inner wall of the pretreatment box, the first driving belt pulley is rotatably connected to the second fixing plate, a driven bevel gear is rotatably connected to the other side wall of the second fixing plate, the driven bevel gear is fixedly connected to the center of the first driving belt pulley, a driving bevel gear is meshed and connected to the driven bevel gear, and the center of the driving bevel gear is fixedly connected to the bottom end of a lead screw.

[0017] Further, a steam generator is arranged on one side of the adsorption tank, the output end of the steam generator is communicated with a high-temperature steam pipe, the output end of the high-temperature steam pipe is communicated with the inside of the adsorption tank, an exhaust pipe is communicated with the adsorption tank, a condensation mechanism is arranged on one side of the adsorption tank, a second air guide pipe is communicated between the condensation mechanism and the adsorption tank, a sealing cover is arranged on the adsorption tank, and a partition treatment mechanism is arranged inside the adsorption tank.

[0018] Further, the condensation mechanism includes a liquid collecting tank, a spiral condensation pipe is communicated with the liquid collecting tank, the air inlet end of the spiral condensation pipe is communicated with the second air guide pipe, a plurality of groups of second heat dissipation fins are arranged on the outer wall of the spiral condensation pipe, the plurality of groups of second heat dissipation fins are distributed in a circular array centered on the central axis of the spiral condensation pipe, a linkage shaft is rotatably connected to the top end of the outer wall of the liquid collecting tank, a plurality of groups of rotating blades are fixedly connected to the linkage shaft, the plurality of groups of rotating blades are distributed in a circular array centered on the central axis of the linkage shaft, and a second driven belt pulley is fixedly connected to the top end of the linkage shaft.

[0019] Further, the partition processing mechanism includes a gear rotatably connected to the center of the sealing cover. A rotating shaft is fixedly connected to the center of the gear. The bottom end of the rotating shaft is rotatably connected to the inner bottom end of the adsorption tank. A number of groups of partition sealing plates are fixedly connected to the rotating shaft. All the partition sealing plates are made of heat-insulating materials. The partition sealing plates are distributed in a circular array with the central axis of the rotating shaft as the center. Adsorption plates are arranged on both side walls of the partition sealing plates. The adsorption plates are made of zeolite-activated carbon composite filler. A mutually isolated gas collection cavity, adsorption cavity, desorption cavity and exhaust cavity are respectively formed between every two adjacent groups of partition sealing plates, the adsorption tank and the sealing cover. The gas collection cavity is communicated with the first air duct. The adsorption cavity is communicated with the exhaust pipe. The desorption cavity is communicated with the high-temperature steam pipe. The exhaust cavity is communicated with the second air duct.

[0020] Further, an installation frame is fixedly connected to the sealing cover. A second motor is installed on the installation frame. The output end of the second motor is drivingly connected to a second driving pulley. A second belt is sleeved on the second driving pulley. An incomplete gear is fixedly connected to the bottom end of the second driving pulley. The incomplete gear is meshed with the gear.

[0021] The beneficial effects of the present invention are as follows:

[0022] 1. The VOCs waste gas generated by the chemical equipment enters the expansion air bag through the air inlet pipe. With the continuous increase of the gas, the expansion air bag expands and drives the sliding plate to move upward along a number of sliding columns. When the contact block moves upward until it contacts the pressure sensor and exerts a pressure on the pressure sensor, by monitoring the pressure value of the pressure sensor, when the gas volume in the expansion air bag reaches the preset value, the second solenoid valve is opened to make the sliding plate move downward to squeeze the expansion air bag, so that the VOCs waste gas in the expansion air bag is discharged through the first air duct. The expansion air bag collects the VOCs waste gas and further processes it after the amount of the VOCs waste gas reaches the preset value, thus avoiding the waste of resources caused by the intermittent exhaust of the chemical equipment resulting in the failure to collect the waste gas in time and the continuous operation of the adsorption and condensation device when the equipment does not exhaust.

[0023] 2. Drive the lead screw to rotate through the first motor, causing the internally threaded pressure plate to move downward and squeeze the sliding plate, thereby causing the sliding plate to squeeze the telescopic airbag, enabling the VOCs waste gas in the telescopic airbag to be discharged at a uniform speed. When the VOCs waste gas in the telescopic airbag is emptied, drive the lead screw to rotate in the reverse direction through the first motor, causing the internally threaded pressure plate to move upward and reset to the bottom end of the top bracket, preventing the internally threaded pressure plate from blocking the sliding plate when the VOCs waste gas enters the telescopic airbag. Discharge the gas by the method of the sliding plate moving downward to squeeze the telescopic airbag. Control and adjust the gas discharge speed by controlling the rotation speed of the first motor, avoiding insufficient adsorption and condensation due to too fast gas discharge or too low adsorption and condensation efficiency due to too slow gas discharge.

[0024] 3. Drive the driving bevel gear to rotate through the lead screw, causing the driven bevel gear to drive the first driving pulley and the first driven pulley to rotate synchronously, thereby causing the worm to drive several groups of worm wheels to rotate, causing several groups of air cooling fans to rotate synchronously, enabling the air in the pretreatment box to circulate and discharging the heat through several groups of first heat dissipation fins, causing the temperature of the VOCs waste gas flowing through the first air duct to drop rapidly to achieve pre-cooling, so as to improve the subsequent adsorption effect.

[0025] 4. Divide the interior of the adsorption tank into mutually isolated gas collection cavities, adsorption cavities, desorption cavities and exhaust cavities by several groups of partition sealing plates. Drive the incomplete gear to rotate through the second motor. The rack on the incomplete gear rotates to mesh with the gear and drives the gear to rotate to a preset angle value, thereby causing the rotating shaft to drive several groups of partition sealing plates to rotate synchronously, causing two groups of partition sealing plates to drive the VOCs waste gas collected in the gas collection cavity to intermittently enter the gas collection cavity, adsorption cavity, desorption cavity and exhaust cavity in sequence, completing the collection, adsorption, desorption and condensation operations of the VOCs waste gas, enabling the treatment of the VOCs waste gas to be automatically continuous without manual operation, effectively improving the treatment efficiency of the VOCs waste gas and saving labor costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following drawings are some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0027] Figure 1 Shows the schematic diagram of the main structure according to the embodiment of the present invention;

[0028] Figure 2 Shows the Figure 1 enlarged schematic diagram at A in;

[0029] Figure 3 The schematic diagram of the back view of the main body structure according to an embodiment of the present invention is shown;

[0030] Figure 4 The schematic diagram of the back view of the pretreatment tank according to an embodiment of the present invention is shown;

[0031] Figure 5 The schematic diagram of the front view of the pretreatment tank according to an embodiment of the present invention is shown;

[0032] Figure 6 The schematic diagram of the adsorption tank and the condensation mechanism according to an embodiment of the present invention is shown;

[0033] Figure 7 The schematic diagram of the internal structure of the adsorption tank according to an embodiment of the present invention is shown;

[0034] Figure 8 The exploded schematic diagram of the condensation mechanism structure according to an embodiment of the present invention is shown.

[0035] In the figure: 1, base; 2, boss; 3, bottom plate; 4, limit block; 5, sliding column; 6, top bracket; 7, slider; 8, sliding plate; 9, telescopic airbag; 10, intake pipe; 11, first solenoid valve; 12, first air duct; 13, second solenoid valve; 14, pretreatment tank; 1401, heat dissipation window; 1402, cross plate; 1403, first heat dissipation fin; 15, telescopic rod; 16, abutting block; 17, buffer spring; 18, pressure sensor; 19, L-shaped bracket; 20, first motor; 21, lead screw; 22, internally threaded pressing plate; 23, precooling mechanism; 2301, first fixing plate; 2302, worm; 2303, worm gear; 2304, first driven pulley; 2305, first belt; 2306, first driving pulley; 2307, second fixing plate; 2308, driven bevel gear; 2309, driving bevel gear; 2310, air-cooled fan; 24, adsorption tank; 2401, sealing cover; 25, steam generator; 2501, high-temperature steam pipe; 26, exhaust pipe; 27, condensation mechanism; 2701, liquid collection tank; 2702, spiral condensation pipe; 2703, second heat dissipation fin; 2704, linkage shaft; 2705, second driven pulley; 2706, rotating blade; 28, second air duct; 29, partition treatment mechanism; 2901, gear; 2902, rotating shaft; 2903, partition sealing plate; 2904, adsorption plate; 30, mounting rack; 31, second motor; 32, second driving pulley; 33, incomplete gear; 34, second belt. Detailed implementation manners

[0036] In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the technical solution in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0037] The embodiment of the present invention provides a VOCs adsorption condensation treatment device, including a base 1; illustratively, as Figure 1-3 shown.

[0038] The base 1 is fixedly connected with a boss 2, the boss 2 is fixedly connected with a bottom plate 3, the side wall of the bottom plate 3 is fixedly connected with a plurality of groups of limit blocks 4, the plurality of groups of limit blocks 4 are distributed in a ring array with the central axis of the bottom plate 3 as the center, the plurality of groups of limit blocks 4 are fixedly connected with sliding columns 5, the top ends of the plurality of groups of sliding columns 5 are fixedly connected with top brackets 6, the plurality of groups of sliding columns 5 are slidably connected with sliders 7, the plurality of groups of sliders 7 are fixedly connected with sliding plates 8, and a telescopic airbag 9 is provided between the sliding plate 8 and the bottom plate 3;

[0039] An air inlet pipe 10 is provided at the bottom end of the bottom plate 3, a first solenoid valve 11 is provided on the air inlet pipe 10, the first solenoid valve 11 is a one-way valve, the air outlet end of the air inlet pipe 10 is interconnected with the interior of the telescopic airbag 9, the air inlet end of the air inlet pipe 10 is interconnected with the exhaust pipe of the chemical equipment, a first air guide pipe 12 is provided at the bottom end of the bottom plate 3, a second solenoid valve 13 is provided on the first air guide pipe 12, the second solenoid valve 13 is a one-way valve, the air inlet end of the first air guide pipe 12 is interconnected with the interior of the telescopic airbag 9, a pretreatment box 14 is provided on one side of the base 1, an adsorption tank 24 is provided at one end of the pretreatment box 14, and the air outlet end of the first air guide pipe 12 passes through the pretreatment box 14 and is interconnected with the interior of the adsorption tank 24;

[0040] A telescopic rod 15 is fixedly connected to the top center of the sliding plate 8, and a resisting block 16 is fixedly connected to the top of the telescopic rod 15. A buffer spring 17 is arranged between the resisting block 16 and the sliding plate 8, and the buffer spring 17 is sleeved on the telescopic rod 15. A pressure sensor 18 is installed at the bottom center of the top bracket 6, and the pressure sensor 18 is in active contact with the resisting block 16.

[0041] Specifically, the VOCs waste gas generated by the chemical equipment enters the telescopic airbag 9 through the air intake pipe 10, and the telescopic airbag 9 is expanded by the continuous increase of gas, and drives the sliding plate 8 to move upward along the plurality of sliding columns 5. When the resistance block 16 moves upward, it contacts the pressure sensor 18 and generates pressure on the pressure sensor 18. By monitoring the pressure value of the pressure sensor 18, when the amount of gas in the telescopic airbag 9 reaches a preset value, the second solenoid valve 13 is opened to move the sliding plate 8 downward to squeeze the telescopic airbag 9, so that the VOCs waste gas in the telescopic airbag 9 is discharged through the first air guide pipe 12, and the VOCs waste gas is collected by the telescopic airbag 9, and further processed after the amount of VOCs waste gas reaches the preset value, thereby avoiding the intermittent exhaust of the chemical equipment resulting in the inability to collect the waste gas in time and the continuous operation of the adsorption condensation device when the equipment is not exhausted, resulting in waste of resources.

[0042] A precooling mechanism 23 is provided in the pretreatment box 14, an L-shaped bracket 19 is fixedly connected to the pretreatment box 14, a first motor 20 is installed at the top of the L-shaped bracket 19, a screw rod 21 is drivingly connected to the output end of the first motor 20, an internal thread pressing plate 22 is threadedly connected to the screw rod 21, a through hole is opened on the internal thread pressing plate 22, the through hole is movably fitted with an adjacent group of sliding columns 5, and one end of the internal thread pressing plate 22 extends to the top of the sliding plate 8;

[0043] Specifically, the first motor 20 drives the screw rod 21 to rotate, so that the internal threaded pressure plate 22 moves downward to squeeze the sliding plate 8, so that the sliding plate 8 squeezes the telescopic airbag 9, and the VOCs waste gas in the telescopic airbag 9 is discharged at a uniform speed. After the VOCs waste gas in the telescopic airbag 9 is emptied, the first motor 20 drives the screw rod 21 to rotate in the opposite direction, so that the internal threaded pressure plate 22 moves upward and resets to the bottom end of the top bracket 6, so as to avoid the internal threaded pressure plate 22 blocking the sliding plate 8 when the VOCs waste gas enters the telescopic airbag 9.

[0044] For example, Figure 4 and Figure 5 shown.

[0045] The pretreatment box 14 is an open box, the first air duct 12 runs through the interior of the pretreatment box 14, and heat dissipation windows 1401 are provided on both side walls of the pretreatment box 14. A transverse plate 1402 is fixedly connected to the inner wall of one group of heat dissipation windows 1401, and a plurality of first heat dissipation fins 1403 are installed on the inner wall of another group of heat dissipation windows 1401.

[0046] The pre-cooling mechanism 23 includes two groups of first fixing plates 2301, both of the two groups of first fixing plates 2301 are fixedly connected to the outer wall of one side of the pretreatment tank 14, a worm 2302 is rotatably connected between the two groups of first fixing plates 2301, several groups of worm wheels 2303 are meshed and connected to the worm 2302, all of the several groups of worm wheels 2303 are rotatably connected to a cross plate 1402, several groups of air-cooling fans 2310 are rotatably connected to the other side wall of the cross plate 1402, the air-cooling fans 2310 include bearings and several groups of fan blades, the bearings of the several groups of air-cooling fans 2310 are respectively fixedly connected to the centers of the several groups of worm wheels 2303, one end of the worm 2302 penetrates through one group of first fixing plates 2301 and then is fixedly connected to a first driven belt pulley 2304, a first belt 2305 is sleeved on the first driven belt pulley 2304, the other end of the first belt 2305 is sleeved with a first driving belt pulley 2306, a second fixing plate 2307 is arranged at the bottom end of the inner wall of the pretreatment tank 14, the first driving belt pulley 2306 is rotatably connected to the second fixing plate 2307, a driven bevel gear 2308 is rotatably connected to the other side wall of the second fixing plate 2307, the driven bevel gear 2308 is fixedly connected to the center of the first driving belt pulley 2306, a driving bevel gear 2309 is meshed and connected to the driven bevel gear 2308, and the center of the driving bevel gear 2309 is fixedly connected to the bottom end of a lead screw 21;

[0047] Specifically, the driving bevel gear 2309 is driven to rotate by the lead screw 21, so that the driven bevel gear 2308 drives the first driving belt pulley 2306 and the first driven belt pulley 2304 to rotate synchronously, thereby the worm 2302 drives several groups of worm wheels 2303 to rotate, several groups of air-cooling fans 2310 rotate synchronously, the air in the pretreatment tank 14 circulates, and heat is discharged through several groups of first heat dissipation fins 1403, so that the temperature of the VOCs waste gas flowing through the first air duct 12 drops rapidly to realize pre-cooling, so as to improve the subsequent adsorption effect.

[0048] Exemplarily, as Figure 6 shown.

[0049] A steam generator 25 is arranged on one side of the adsorption tank 24, an output end of the steam generator 25 is communicated with a high-temperature steam pipe 2501, an output end of the high-temperature steam pipe 2501 is communicated with the inside of the adsorption tank 24, an exhaust pipe 26 is communicated with the adsorption tank 24, a condensation mechanism 27 is arranged on one side of the adsorption tank 24, a second air duct 28 is communicated between the condensation mechanism 27 and the adsorption tank 24, a sealing cover 2401 is arranged on the adsorption tank 24, and a partition treatment mechanism 29 is arranged inside the adsorption tank 24;

[0050] Exemplarily, as Figure 7 shown.

[0051] The partition processing mechanism 29 includes a gear 2901 rotatably connected to the center of the sealing cover 2401. A rotating shaft 2902 is fixedly connected to the center of the gear 2901. The bottom end of the rotating shaft 2902 is rotatably connected to the inner wall bottom end of the adsorption tank 24. A number of groups of partition sealing plates 2903 are fixedly connected to the rotating shaft 2902. All the groups of partition sealing plates 2903 are made of heat-insulating materials. The groups of partition sealing plates 2903 are distributed in a circular array centered on the central axis of the rotating shaft 2902. Adsorption plates 2904 are arranged on both side walls of the groups of partition sealing plates 2903. The adsorption plates 2904 are made of zeolite-activated carbon composite filler. An air collecting cavity, an adsorption cavity, a desorption cavity and an exhaust cavity that are isolated from each other are respectively formed between every two adjacent groups of partition sealing plates 2903, the adsorption tank 24 and the sealing cover 2401. The air collecting cavity is communicated with the first air duct 12. The adsorption cavity is communicated with the exhaust pipe 26. The desorption cavity is communicated with the high-temperature steam pipe 2501. The exhaust cavity is communicated with the second air duct 28;

[0052] An installation frame 30 is fixedly connected to the sealing cover 2401. A second motor 31 is installed on the installation frame 30. The output end of the second motor 31 is drivingly connected with a second driving pulley 32. An incomplete gear 33 is fixedly connected to the bottom end of the second driving pulley 32. The incomplete gear 33 is meshed with the gear 2901. A second belt 34 is sleeved on the second driving pulley 32;

[0053] Specifically, the VOCs waste gas enters the air collecting cavity in the adsorption tank 24 through the first air duct 12. The benzene in the VOCs waste gas is adsorbed by the adsorption plates 2904 on two adjacent groups of partition sealing plates 2903. The second motor 31 drives the incomplete gear 33 to rotate. The rack on the incomplete gear 33 rotates to be meshed with the gear 2901 and drives the gear 2901 to rotate to a preset angle value, so that the rotating shaft 2902 drives a number of groups of partition sealing plates 2903 to rotate synchronously, and the two groups of partition sealing plates 2903 drive the VOCs waste gas collected in the air collecting cavity to enter the adsorption cavity. After the benzene in the VOCs waste gas is adsorbed by the adsorption plates 2904, the treated gas is discharged through the exhaust pipe 26;

[0054] Further, the incomplete gear 33 drives the gear 2901 to continue rotating to the next angular value, causing the two sets of partition sealing plates 2903 to drive the benzene adsorbed on the adsorption plate 2904 into the desorption cavity. High-temperature steam generated by the steam generator 25 is introduced into the desorption cavity through the high-temperature steam pipe 2501 to desorb the benzene adsorbed on the adsorption plate 2904. The incomplete gear 33 drives the gear 2901 to continue rotating to the next angular value, causing the two sets of partition sealing plates 2903 to drive the desorbed benzene and water vapor into the exhaust cavity, and the desorbed benzene and water vapor enter the condensation mechanism 27 through the second air duct 28 for condensation operation.

[0055] Exemplarily, as Figure 8 shown.

[0056] The condensation mechanism 27 includes a liquid collecting tank 2701. A spiral condensing pipe 2702 is communicated with the liquid collecting tank 2701. The air inlet end of the spiral condensing pipe 2702 is communicated with the second air duct 28. A plurality of groups of second heat dissipation fins 2703 are arranged on the outer wall of the spiral condensing pipe 2702. The plurality of groups of second heat dissipation fins 2703 are distributed in a circular array centered on the central axis of the spiral condensing pipe 2702. The top end of the outer wall of the liquid collecting tank 2701 is rotatably connected with a linkage shaft 2704. A plurality of groups of rotating blades 2706 are fixedly connected to the linkage shaft 2704. The plurality of groups of rotating blades 2706 are distributed in a circular array centered on the central axis of the linkage shaft 2704. The top end of the linkage shaft 2704 is fixedly connected with a second driven belt pulley 2705. The second driven belt pulley 2705 is sleeved on the second belt 34.

[0057] Specifically, the desorbed benzene and water vapor enter the spiral condensing pipe 2702 through the second air duct 28 for condensation. The condensed liquid enters the liquid collecting tank 2701 for collection and centralized treatment. The second driving belt pulley 32 drives the second driven belt pulley 2705 to rotate, causing the linkage shaft 2704 to drive a plurality of groups of rotating blades 2706 to rotate synchronously, accelerating the air circulation, so that the heat of the spiral condensing pipe 2702 is quickly dissipated through a plurality of groups of second heat dissipation fins 2703, thereby accelerating the condensation efficiency.

[0058] The working principle of a VOCs adsorption and condensation treatment device proposed by the present invention is as follows:

[0059] The VOCs waste gas generated by the chemical equipment enters the telescopic airbag 9 through the intake pipe 10. As the gas continuously increases, the telescopic airbag 9 expands and drives the sliding plate 8 to move upward along several groups of sliding columns 5. When the contact block 16 moves upward until it contacts the pressure sensor 18 and exerts a pressure on the pressure sensor 18, by monitoring the pressure value of the pressure sensor 18, when the gas volume in the telescopic airbag 9 reaches the preset value, by opening the second solenoid valve 13, the sliding plate 8 moves downward to squeeze the telescopic airbag 9, so as to discharge the VOCs waste gas in the telescopic airbag 9 through the first air duct 12. The telescopic airbag 9 is used to collect the VOCs waste gas, and after the amount of the VOCs waste gas reaches the preset value, it is further processed, thus avoiding the waste of resources caused by the intermittent exhaust of the chemical equipment resulting in the failure to collect the waste gas in time and the continuous operation of the adsorption and condensation device when the equipment is not exhausting.

[0060] The first motor 20 drives the lead screw 21 to rotate, so that the internally threaded pressing plate 22 moves downward to squeeze the sliding plate 8, thereby enabling the sliding plate 8 to squeeze the telescopic airbag 9, and the VOCs waste gas in the telescopic airbag 9 is discharged at a uniform speed. When the VOCs waste gas in the telescopic airbag 9 is emptied, the first motor 20 drives the lead screw 21 to rotate in the reverse direction, so that the internally threaded pressing plate 22 moves upward and resets to the bottom end of the top bracket 6, avoiding the internally threaded pressing plate 22 blocking the sliding plate 8 when the VOCs waste gas enters the telescopic airbag 9. The gas is discharged by the way that the sliding plate 8 moves downward to squeeze the telescopic airbag 9. By controlling the rotation speed of the first motor 20, the discharge speed of the gas can be controlled and adjusted, avoiding the insufficient adsorption and condensation caused by the too fast discharge of the gas, or the low adsorption and condensation efficiency and the waste of resources caused by the too slow discharge of the gas.

[0061] The lead screw 21 drives the driving bevel gear 2309 to rotate, so that the driven bevel gear 2308 drives the first driving pulley 2306 and the first driven pulley 2304 to rotate synchronously, thereby enabling the worm 2302 to drive several groups of worm wheels 2303 to rotate, and several groups of air cooling fans 2310 to rotate synchronously, making the air in the pretreatment box 14 flow and discharging the heat through several groups of first heat dissipation fins 1403, so that the temperature of the VOCs waste gas flowing through the first air duct 12 drops rapidly to achieve pre-cooling, so as to improve the subsequent adsorption effect.

[0062] The VOCs waste gas enters the gas collection cavity in the adsorption tank 24 through the first gas guide pipe 12. The benzene in the VOCs waste gas is adsorbed by the adsorption plates 2904 on two adjacent groups of partition sealing plates 2903. The second motor 31 drives the incomplete gear 33 to rotate. The rack on the incomplete gear 33 rotates to engage with the gear 2901 and drives the gear 2901 to rotate to a preset angle value, so that the rotating shaft 2902 drives several groups of partition sealing plates 2903 to rotate synchronously, and the two groups of partition sealing plates 2903 drive the VOCs waste gas collected in the gas collection cavity into the adsorption cavity. After the benzene in the VOCs waste gas is adsorbed by the adsorption plates 2904, the treated gas is discharged through the exhaust pipe 26;

[0063] The incomplete gear 33 drives the gear 2901 to continue rotating to the next angle value, so that the two groups of partition sealing plates 2903 drive the benzene adsorbed on the adsorption plates 2904 into the desorption cavity. High-temperature steam generated by the steam generator 25 is introduced into the desorption cavity through the high-temperature steam pipe 2501 to desorb the benzene adsorbed on the adsorption plates 2904. The incomplete gear 33 drives the gear 2901 to continue rotating to the next angle value, so that the two groups of partition sealing plates 2903 drive the desorbed benzene and water vapor into the exhaust cavity, and the desorbed benzene and water vapor enter the condensation mechanism 27 through the second gas guide pipe 28 for condensation operation.

[0064] The desorbed benzene and water vapor enter the spiral condensation pipe 2702 through the second gas guide pipe 28 for condensation. The condensed liquid enters the liquid collection tank 2701 for collection and centralized treatment. The second driving pulley 32 drives the second driven pulley 2705 to rotate, so that the linkage shaft 2704 drives several groups of rotating blades 2706 to rotate synchronously, accelerating the air circulation, so that the heat of the spiral condensation pipe 2702 is quickly dissipated through several groups of second heat dissipation fins 2703, thereby accelerating the condensation efficiency.

[0065] Although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A VOCs adsorption and condensation treatment device, comprising a base, characterized in that: The base is fixedly connected with a boss, and the boss is fixedly connected with a bottom plate; The side wall of the bottom plate is fixedly connected with a plurality of groups of limit blocks, each of the plurality of groups of limit blocks is fixedly connected with a sliding column, and the top of each of the plurality of groups of sliding columns is fixedly connected with a top bracket; A plurality of groups of sliding columns are slidably connected with sliding plates, and a telescopic airbag is arranged between the sliding plate and the bottom plate; A telescopic rod is fixedly connected to the center of the top end of the sliding plate, a resisting block is fixedly connected to the top end of the telescopic rod, and a pressure sensor for monitoring the gas content in the telescopic airbag is installed at the center of the bottom end of the top bracket; An air inlet pipe is provided at the bottom end of the bottom plate, and the air inlet end of the air inlet pipe is connected to the exhaust pipe of the chemical equipment; A first air duct is provided at the bottom end of the base plate, a pretreatment box for pre-cooling the VOCs waste gas is provided on one side of the base, an adsorption tank for adsorbing and desorbing the VOCs waste gas is provided at one end of the pretreatment box, and an air outlet end of the first air duct passes through the pretreatment box and is connected to the interior of the adsorption tank.

2. The VOCs adsorption and condensation treatment device according to claim 1, wherein: The air inlet pipe is provided with a first solenoid valve, which is a one-way valve. The air outlet end of the air inlet pipe is connected to the interior of the telescopic airbag. The first air guide pipe is provided with a second solenoid valve, which is a one-way valve. The air inlet end of the first air guide pipe is connected to the interior of the telescopic airbag.

3. The VOCs adsorption and condensation treatment device according to claim 1, characterized in that: An L-shaped bracket is fixedly connected to the pretreatment box, and a first motor is installed on the top of the L-shaped bracket. The output end of the first motor is transmission-connected to a screw rod, and an internal threaded pressure plate is threadedly connected to the screw rod. A through hole is opened on the internal threaded pressure plate, and the through hole is movably fitted with an adjacent group of sliding columns. One end of the internal threaded pressure plate extends to the top of the sliding plate.

4. The VOCs adsorption and condensation treatment device according to claim 3, characterized in that: The pretreatment box is an open box, the first air duct runs through the interior of the pretreatment box, heat dissipation windows are provided on both side walls of the pretreatment box, a group of heat dissipation windows are fixedly connected to the inner wall with a horizontal plate, and another group of heat dissipation windows are installed with a plurality of first heat dissipation fins on the inner wall, and a precooling mechanism is provided in the pretreatment box.

5. The VOCs adsorption and condensation treatment device according to claim 4, characterized in that The precooling mechanism comprises two groups of first fixed plates, the two groups of first fixed plates are fixedly connected to one side outer wall of the pretreatment box, a worm is rotatably connected between the two groups of first fixed plates, a plurality of groups of worm gears are meshedly connected to the worm, the plurality of groups of worm gears are rotatably connected to the cross plate, a plurality of groups of air-cooling fans are rotatably connected to the other side wall of the cross plate, the air-cooling fans comprise bearings and a plurality of groups of fan blades, the bearings of the plurality of groups of air-cooling fans are respectively fixedly connected to the centers of the plurality of groups of worm gears.

6. The VOCs adsorption and condensation treatment device according to claim 5, wherein: One end of the worm gear penetrates through a set of first fixed plates and is fixedly connected to a first driven belt pulley. A first belt is sleeved on the first driven belt pulley. The other end of the first belt is sleeved on a first driving belt pulley. The bottom end of the inner wall of the pretreatment tank is provided with a second fixed plate. The first driving belt pulley is rotatably connected to the second fixed plate. The other side wall of the second fixed plate is rotatably connected to a driven bevel gear. The driven bevel gear is fixedly connected to the center of the first driving belt pulley. A driving bevel gear is meshed with the driven bevel gear. The center of the driving bevel gear is fixedly connected to the bottom end of the lead screw.

7. The VOCs adsorption and condensation treatment device according to claim 1, wherein: A steam generator is arranged on one side of the adsorption tank. The output end of the steam generator is communicated with a high-temperature steam pipe. The output end of the high-temperature steam pipe is communicated with the inside of the adsorption tank. An exhaust pipe is communicated with the adsorption tank. A condensation mechanism is arranged on one side of the adsorption tank. A second air guide pipe is communicated between the condensation mechanism and the adsorption tank. A sealing cover is arranged on the adsorption tank. A partition treatment mechanism is arranged inside the adsorption tank.

8. The VOCs adsorption and condensation treatment device according to claim 7, wherein: The condensation mechanism includes a liquid collection tank. A spiral condensation pipe is communicated with the liquid collection tank. The air inlet end of the spiral condensation pipe is communicated with the second air guide pipe. A plurality of groups of second heat dissipation fins are arranged on the outer wall of the spiral condensation pipe. The plurality of groups of second heat dissipation fins are distributed in a circular array centered on the central axis of the spiral condensation pipe. The top end of the outer wall of the liquid collection tank is rotatably connected to a linkage shaft. A plurality of groups of rotating blades are fixedly connected to the linkage shaft. The plurality of groups of rotating blades are distributed in a circular array centered on the central axis of the linkage shaft. The top end of the linkage shaft is fixedly connected to a second driven belt pulley.

9. The VOCs adsorption and condensation treatment device according to claim 7, wherein: The partition treatment mechanism includes a gear. The gear is rotatably connected to the center of the sealing cover. The center of the gear is fixedly connected to a rotating shaft. The bottom end of the rotating shaft is rotatably connected to the bottom end of the inner wall of the adsorption tank. A plurality of groups of partition sealing plates are fixedly connected to the rotating shaft. The plurality of groups of partition sealing plates are all made of heat insulation materials. The plurality of groups of partition sealing plates are distributed in a circular array centered on the central axis of the rotating shaft. Adsorption plates are arranged on both side walls of the plurality of groups of partition sealing plates. The adsorption plates are made of zeolite-activated carbon composite filler. A gas collection cavity, an adsorption cavity, a desorption cavity and an exhaust cavity which are isolated from each other are respectively formed between every two adjacent groups of partition sealing plates, the adsorption tank and the sealing cover. The gas collection cavity is communicated with the first air guide pipe. The adsorption cavity is communicated with the exhaust pipe. The desorption cavity is communicated with the high-temperature steam pipe. The exhaust cavity is communicated with the second air guide pipe.

10. The VOCs adsorption and condensation treatment device according to claim 9, wherein: An installation frame is fixedly connected to the sealing cover. A second motor is installed on the installation frame. The output end of the second motor is drivingly connected to a second driving belt pulley. An incomplete gear is fixedly connected to the bottom end of the second driving belt pulley. The incomplete gear is meshed with the gear. A second belt is sleeved on the second driving belt pulley.

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