CN111780140B

CN111780140B - Heat accumulating type catalytic combustion device for VOCs treatment

Info

Publication number: CN111780140B
Application number: CN202010748269.3A
Authority: CN
Inventors: 陆朝阳; 张纪文; 徐遵主; 蒋海涛; 李明; 孙永嘉
Original assignee: Academy Of Environmental Planning & Design Co Ltd Nanjing University
Current assignee: Nanjing University environmental planning and Design Institute Group Co., Ltd
Priority date: 2020-07-30
Filing date: 2020-07-30
Publication date: 2020-12-22
Anticipated expiration: 2040-07-30
Also published as: CN111780140A

Abstract

The invention discloses a heat accumulating type catalytic combustion device for VOCs treatment, which comprises a supporting seat, wherein the top surface of the supporting seat is provided with an air interchanger and a catalytic combustion device; through the inside pressure drop change of monitoring device real-time supervision catalytic combustion device, the serious condition of metal mesh type catalyst surface carbon deposit is judged according to the pressure drop change, the pressure drop is big, the carbon deposit condition is more serious, simultaneously monitoring device can acquire kinetic energy under the effect of pressure drop, make monitoring device can drive the transmission motion, to catalytic combustion device through transmission, the switching-over device, go up air outlet means, air outlet means controls down, make two metal mesh type catalysts can automatic turn into the use in turn, can clear up the operation automatically to the metal mesh type catalyst that the carbon deposit condition is serious simultaneously, degree of automation is high, the cost of labor is low, and need not terminate VOCs waste gas treatment process, VOCs waste gas treatment efficiency is high, the practicality that is used for the heat accumulation formula catalytic combustion device that VOCs handled has been improved.

Description

Heat accumulating type catalytic combustion device for VOCs treatment

Technical Field

The invention relates to the field of VOCs treatment equipment, in particular to a heat accumulating type catalytic combustion device for treating VOCs.

Background

VOCs are volatile organic compounds, which are abbreviated as English, and refer to any carbon compound participating in atmospheric photochemical reaction except CO, CO2, H2CO3, metal carbide, metal carbonate and ammonium carbonate, which can pollute the environment, so VOCs organic waste gas can be discharged after being treated, the existing method for treating VOCs organic waste gas mainly comprises an adsorption method, a membrane separation method, a liquid absorption method, a catalytic combustion method, a photocatalytic oxidation treatment technology and a biological treatment technology, wherein the catalytic combustion technology refers to a waste gas treatment method for completely oxidizing and decomposing combustible components in the waste gas under the action of a catalyst at a lower temperature so as to purify the gas, the method is suitable for treating combustible or decomposable organic gas at a high temperature, and has the advantages of flameless combustion, good safety, less limit on the concentration and the heat value of the combustible components and low ignition temperature, most organic matters and CO can complete reaction at 200-400 ℃, so that the consumption of auxiliary fuel is low, the generation of NOx is greatly reduced, the odor can be eliminated, equipment suitable for catalytic combustion technology is called a catalytic combustor, and in order to further improve the utilization rate of heat energy, a heat exchanger is usually arranged on the catalytic combustor and performs heat storage and heat exchange.

The existing regenerative catalytic combustion device for VOCs treatment consists of a heat exchanger, a combustion furnace, a burner, a metal mesh type catalyst, a fan and the like, in the actual use process, part of VOCs can not be completely combusted to form substances such as hydrocarbon, paraffin, colloid and the like, the substances are attached to the surface of the metal mesh type catalyst and are burnt into colloidal carbon at high temperature to form carbon deposit, the metal mesh type catalyst is gradually covered by the carbon deposit to cause the reduction of catalytic combustion rate and the reduction of waste gas treatment efficiency, in order to regenerate the metal mesh type catalyst, the waste gas treatment process is stopped, namely, the injection of waste gas is stopped, fresh air is continuously blown to the metal mesh type catalyst and the metal mesh type catalyst is heated, the temperature of the metal mesh type catalyst is raised to 500 ℃ and the reaction is continuously carried out for about five hours, so that the carbon deposit is combusted, but the regeneration work of the metal mesh type catalyst is manually controlled, degree of automation is low, and the cost of labor is high, can terminate the exhaust-gas treatment process for a long time simultaneously, has reduced exhaust-gas treatment efficiency, consequently needs to design a heat accumulation formula catalytic combustion device for VOCs handles urgently.

Disclosure of Invention

1. Technical problem to be solved

Aiming at the existing heat accumulating type catalytic combustion device for VOCs treatment in the prior art, which comprises a heat exchanger, a combustion furnace, a burner, a metal mesh type catalyst, a fan and the like, in the actual use process, partial VOCs are incompletely combusted to form substances such as hydrocarbon, paraffin, colloid and the like, the substances are attached to the surface of the metal mesh type catalyst and are burnt into colloidal carbon at high temperature to form carbon deposit, the carbon deposit gradually covers the metal mesh type catalyst to reduce the catalytic combustion rate, the waste gas treatment efficiency is reduced, in order to regenerate the metal mesh type catalyst, the waste gas treatment process is required to be terminated, namely, the waste gas is stopped being injected, air is continuously injected into the metal mesh type catalyst and is heated, the temperature of the metal mesh type catalyst is raised to 500 ℃ and continuously reacts for about five hours, so that the carbon deposit is combusted, but the regeneration work of the metal mesh type catalyst is manually controlled, the invention aims to provide a heat accumulating type catalytic combustion device for VOCs treatment, which can well solve the problems in the background art.

2. Technical scheme

In order to solve the above problems, the present invention adopts the following technical solutions.

A heat accumulating type catalytic combustion device for VOCs treatment comprises a supporting seat, wherein a ventilation device and a catalytic combustion device are arranged on the top surface of the supporting seat;

the catalytic combustion device comprises a Y-shaped cylinder, the bottom surface of the Y-shaped cylinder is fixedly connected with the top end of the supporting leg, the left end of the Y-shaped cylinder is fixedly communicated with a waste gas pipe, a waste gas electromagnetic valve is arranged outside the waste gas pipe, a constant pressure air pipe is fixedly inserted and connected onto the top surface of the Y-shaped cylinder, the constant pressure air pipe is positioned on the left side of the reversing device, the other end of the constant pressure air pipe is fixedly communicated with an air outlet of an air blower, the Y-shaped cylinder is provided with a reversing device, an upper air outlet device, a lower air outlet device, a transmission device and a monitoring device, a pipeline blowing fan is fixedly inserted and connected onto the right end surface of the Y-shaped cylinder, a heat exchange pipe is fixedly communicated onto an air outlet of the pipeline blowing fan, the other end of the heat exchange pipe penetrates through a branch pipe on the Y-shaped cylinder and is fixedly communicated with another interface on the, a heating wire is wound outside the fixed rod, a first temperature sensor is fixedly inserted on the surface of the Y-shaped cylinder branch pipe, the first temperature sensor is positioned on the right side of the serpentine section of the heat exchange pipe and on the left side of the heating wire, a metal mesh type catalyst positioned on the left side of the serpentine section of the heat exchange pipe is fixedly installed on the inner wall of the Y-shaped cylinder, and a second temperature sensor and a burner are fixedly inserted on the surface of the Y-shaped cylinder branch pipe;

the reversing device comprises a polyhedron and an isolation box, wherein the polyhedron is fixedly connected to the inner wall of a Y-shaped cylinder, a cylindrical groove is formed in the polyhedron, fixed air passages are formed in the inner wall of the cylindrical groove, the number of the fixed air passages is three, the three fixed air passages are respectively and fixedly communicated with three branch pipes of the Y-shaped cylinder, an expanding air passage is formed in the left side surface of the polyhedron and fixedly communicated with the corresponding fixed air passages, a rotating column is movably inserted in the cylindrical groove and is in sliding connection with the inner wall of the cylindrical groove, a bent air passage is formed in the rotating column, two ends of the bent air passage are respectively communicated with two adjacent fixed air passages, a transmission rod is fixedly connected to the front surface of the rotating column, the surface of the isolation box is fixedly connected with the surface of the Y-shaped cylinder, and the end part of the transmission rod extends into the isolation box and is, a large gear is fixedly sleeved outside the transmission rod, a torsion spring is movably sleeved outside the transmission rod, one end of the torsion spring is fixedly connected with the inner wall of the isolation box, the other end of the torsion spring is fixedly connected with the large gear, a positioning shaft is movably sleeved on the inner wall of the isolation box, a small gear is fixedly sleeved outside the positioning shaft and meshed with the large gear, one end of the positioning shaft extends to the outside of the isolation box and is fixedly sleeved with a take-up pulley, and a transmission line is wound outside the take-up pulley;

the upper air outlet device comprises a first fixed block, the surface of the first fixed block is fixedly connected with the surface of the Y-shaped cylinder, a first buffer cavity is formed inside the first fixed block, a first conical groove is formed in the bottom surface of the inner cavity of the first buffer cavity, a first piston column is inserted inside the first buffer cavity in a sliding manner, a first conical plug is fixedly connected to the bottom end of the first piston column, the bottom end of the first conical plug is movably inserted inside the first conical groove, a first fixed cavity is formed inside the first fixed block, a first connecting hole is formed in the inner wall of the first fixed cavity and fixedly communicated with the first buffer cavity, a first linkage piece is fixedly connected to the side surface of the first piston column, the other end of the first linkage piece penetrates through the first connecting hole and is fixedly connected with a first limiting plate, the first limiting plate is slidably connected with the inner wall of the first fixed cavity, a first linkage rod is fixedly connected to the bottom surface of the first limiting plate, the bottom end of the first linkage rod extends to the outside of the first fixing block and is fixedly connected with a first counterweight plate, the first counterweight plate corresponds to the force application sleeve, a first gas injection pipe is fixedly inserted on the first fixing block and is fixedly communicated with the first conical groove, and one end of the first gas injection pipe is fixedly communicated with one branch pipe on the Y-shaped cylinder;

the lower air outlet device comprises a second fixed block, the surface of the second fixed block is fixedly connected with the surface of the Y-shaped cylinder, a second buffer cavity is formed inside the second fixed block, a second taper groove is formed in the bottom surface of the inner cavity of the second buffer cavity, a second piston column is inserted inside the second buffer cavity in a sliding manner, a second tapered plug is fixedly connected to the bottom end of the second piston column, the bottom end of the second tapered plug can be inserted inside the second taper groove, a second fixed cavity is formed inside the second fixed block, a second communicating hole is formed in the inner wall of the second fixed cavity and fixedly communicated with the second buffer cavity, a second coupling piece is fixedly connected to the side surface of the second piston column, the other end of the second coupling piece penetrates through the second communicating hole and is fixedly connected with a second limiting plate, the second limiting plate is slidably connected with the inner wall of the second fixed cavity, and a second coupling rod is fixedly connected to the top surface of the second limiting plate, the top end of the second linkage rod extends to the outside of the second fixed block and is fixedly connected with a second counterweight plate, the second counterweight plate corresponds to the other force application sleeve, a second air injection pipe is fixedly inserted on the second fixed block and is fixedly communicated with the second taper groove, one end of the second air injection pipe is fixedly communicated with the other branch pipe of the Y-shaped cylinder, a buffer spring is movably sleeved outside the second linkage rod, one end of the buffer spring is fixedly connected with the top surface of the inner cavity of the second fixed cavity, and the other end of the buffer spring is fixedly connected with the top surface of the second limiting plate;

the transmission device comprises a reinforcing plate, the reinforcing plate is fixedly connected with the surface of a Y-shaped cylinder, the reinforcing plate is positioned between two parallel branch pipes on the Y-shaped cylinder, a fixing strip is fixedly connected on the front surface of the reinforcing plate, a guide post is fixedly connected on the surface of the fixing strip, a force application sleeve is movably sleeved outside the guide post, a limiting pore plate is movably sleeved outside the force application sleeve, the limiting pore plate is fixedly connected with the reinforcing plate, the end part of the force application sleeve is movably connected with an inclined strip, the other end of the inclined strip is movably connected with a horizontal rod, the left end of the horizontal rod is fixedly connected with the end part of a transmission line, an L-shaped positioning block is movably sleeved outside the horizontal rod, a limiting ring positioned on the right side of the L-shaped positioning block is fixedly sleeved outside the horizontal rod, the limiting ring is in contact connection with the L-shaped positioning block, an inserting hole positioned inside the L-shaped positioning block, the right side surface of the L-shaped positioning block is provided with a movable hole which is fixedly communicated with the mounting cavity, the bottom surface of the inner cavity of the mounting cavity is connected with an extrusion piston through an extrusion spring in a transmission way, the extrusion piston is connected with the inner wall of the mounting cavity in a sliding way, the top surface of the extrusion piston is fixedly connected with an insertion rod, the top end of the insertion rod is movably inserted in the insertion hole, the right side surface of the L-shaped positioning block is fixedly connected with a fixed plate, the fixed plate is movably inserted with a rotary rod, the outer part of the rotary rod is fixedly sleeved with an L-shaped rotary sheet, the left end of the L-shaped rotary sheet passes through the movable hole and extends into the mounting cavity and is in contact connection with the inner wall of the mounting cavity, the left end of the L-shaped rotary sheet is positioned above the extrusion piston, the L-shaped rotary sheet is in contact connection with the surface of the L-shaped positioning block, the bottom end of, the horizontal section of the L-shaped linkage plate is movably sleeved with a positioning flat tube, the positioning flat tube is fixedly connected with a reinforcing plate, the inner surface of the L-shaped linkage plate is fixedly connected with a right-angle trapezoidal block positioned on the right side of the positioning flat tube, the inner surface of the L-shaped linkage plate is fixedly connected with a fixed ratchet positioned on the right side of the right-angle trapezoidal block, the front side of the reinforcing plate is fixedly connected with a mechanical timing electric switch, a transmission ratchet gear is fixedly sleeved on a regulating rod of the mechanical timing electric switch, the transmission ratchet gear is in one-way meshing with the fixed ratchet, the front side of the reinforcing plate is fixedly connected with a head-up triangular block matched with the right-angle trapezoidal block, the front side of the reinforcing plate is fixedly connected with a clamping box, the bottom surface of the clamping box is provided with a displacement groove, the top surface of the clamping box is provided with a positioning chute, the right side surface, the piston box is connected with the inner wall of the clamping box in a sliding way, a linkage column is fixedly connected to the top surface of the piston box, the top end of the linkage column penetrates through the positioning chute and extends to the outside of the clamping box, a through hole is formed in the right side surface of the piston box, a force application elastic sheet is fixedly connected to the left side surface of the inner cavity of the piston box, a fixed shaft is movably sleeved on the inner wall of the piston box, a rotating arm is fixedly sleeved on the outside of the fixed shaft, the end part of the force application elastic sheet is in contact connection with the top surface of the rotating arm, the other end of the rotating arm penetrates through the through hole and is fixedly connected with a clamping head, the clamping head is matched with the inclined clamping hole, a positioning rod is movably sleeved on the inner wall of the piston box, a sector plate is fixedly sleeved on the outside of the positioning rod, the sector plate is movably inserted on the bottom surface of, the limiting strip is in contact connection with the bottom surface of the inner cavity of the piston box, the left side surface of the piston box is fixedly connected with a traction rod, the left end of the traction rod extends to the outside of the clamping box and is fixedly connected with a traction spring, the other end of the traction spring is fixedly connected with the right end of the horizontal rod, and one end of the linkage line is fixedly connected with the bottom surface of the traction rod;

monitoring device includes the U type pipe, the equal fixed intercommunication in both ends of U type pipe is on the same branch pipe on the Y type section of thick bamboo, metal mesh type catalyst is located between two tip of U type pipe, the inner wall fixedly connected with division board of U type pipe, it has the right angle return bend to fix the grafting on the division board, the other end of right angle return bend is connected with the piston that should change through bellows transmission, the inner wall sliding connection of piston and U type pipe that should change, fixedly connected with push rod on the bottom surface of piston that should change, set up the direction spout with push rod looks adaptation on the bottom surface of U type pipe, the other end of push rod passes the direction spout and extends to the outside of U type pipe and with the linkage post, sector plate looks adaptation, the inner wall of U type pipe is connected with the piston transmission that should change through first balance spring, the right angle.

Preferably, the supporting seat comprises a supporting plate, chimneys are fixedly mounted at the left end and the right end of the top surface of the supporting plate, a heat exchanger is fixedly mounted in the middle of the top surface of the supporting plate, an air blower located on the left side of the heat exchanger is fixedly mounted on the top surface of the supporting plate, an air inlet in the air blower is fixedly communicated with an air outlet in the heat exchanger through a pipeline, the air inlet corresponding to the air outlet is communicated with the outside, and supporting legs and an intelligent control box are fixedly mounted on the top surface.

Preferably, the ventilation device comprises a ventilation box, the bottom surface of the ventilation box is fixedly connected with the top surface of the supporting plate, a ventilation pipe is fixedly communicated on the left side surface of the ventilation box, the other end of the ventilation pipe is fixedly communicated with an interface on the heat exchanger, the ventilation pipe is fixedly communicated with the heat exchange pipe through the heat exchanger, a vertical sliding rod is fixedly connected between the upper surface and the lower surface of the inner cavity of the ventilation box, a jacking spring and a jacking plate are movably sleeved on the outer part of the vertical sliding rod, the bottom end of the jacking spring is fixedly connected with the bottom surface of the inner cavity of the ventilation box, the top end of the jacking spring is fixedly connected with the bottom surface of the jacking plate, a frustum-shaped piston is fixedly connected on the top surface of the jacking plate, a conical hole is formed in the top surface of the ventilation box, the top end of the frustum-shaped piston is movably inserted in the conical hole, a retaining ring positioned on the right side of the, the pressure piston is connected with the inner wall of the air-changing box in a sliding mode, the top face of the air-changing box is fixedly communicated with an L-shaped air pipe, the bottom end of the L-shaped air pipe corresponds to the pressure piston, and the right end of the L-shaped air pipe is fixedly communicated with a chimney.

3. Advantageous effects

Compared with the prior art, the invention has the advantages that:

through the inside pressure drop change of monitoring device real-time supervision catalytic combustion device, the serious condition of metal mesh type catalyst surface carbon deposit is judged according to the pressure drop change, the pressure drop is big, the carbon deposit condition is more serious, simultaneously monitoring device can acquire kinetic energy under the effect of pressure drop, make monitoring device can drive the transmission motion, to catalytic combustion device through transmission, the switching-over device, go up air outlet means, lower air outlet means controls, make two metal mesh type catalysts can automatic turn into operation in turn, can automatically carry out the clearance operation to the metal mesh type catalyst that the carbon deposit condition is serious simultaneously, do not need the workman to control, degree of automation is high, the cost of labor is low, and need not terminate VOCs waste gas treatment process, VOCs waste gas treatment efficiency is high, the practicality that should be used for the heat accumulation formula catalytic combustion device that VOCs handled has been improved.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic view of the internal structure of the ventilation device shown in FIG. 1 according to the present invention;

FIG. 3 is a schematic view of the catalytic combustion unit of FIG. 1 according to the present invention;

FIG. 4 is a schematic view of the internal structure of FIG. 3 according to the present invention;

FIG. 5 is a schematic structural diagram of the reversing device of FIG. 4 according to the present invention;

FIG. 6 is a schematic view of the internal structure of FIG. 5 according to the present invention;

FIG. 7 is a schematic structural diagram of the reversing device of FIG. 3 according to the present invention;

FIG. 8 is a schematic view of the internal structure of FIG. 7 according to the present invention;

FIG. 9 is a schematic structural view of the upper air outlet device shown in FIG. 3 according to the present invention;

FIG. 10 is a schematic view of the internal structure of FIG. 9 according to the present invention;

FIG. 11 is a schematic structural view of the lower gas outlet device shown in FIG. 3 according to the present invention;

FIG. 12 is a schematic view of the internal structure of FIG. 11 according to the present invention;

3 FIG. 3 13 3 is 3 a 3 cross 3- 3 sectional 3 view 3 taken 3 at 3 A 3- 3 A 3 of 3 FIG. 311 3 in 3 accordance 3 with 3 the 3 present 3 invention 3; 3

FIG. 14 is a schematic structural view of the transmission of FIG. 3 in accordance with the present invention;

FIG. 15 is a schematic view of the L-shaped positioning block of FIG. 14 according to the present invention;

FIG. 16 is a schematic view of the internal structure of FIG. 15 according to the present invention;

FIG. 17 is a schematic view of the internal structure of the clamping box of FIG. 14 according to the present invention;

figure 18 is a schematic view of the mechanical chronograph electric switch of figure 14 according to the present invention;

fig. 19 is a schematic diagram of the internal structure of the monitoring device in fig. 3 according to the present invention.

The reference numbers in the figures illustrate:

1. a supporting seat; 11. a support plate; 12. a chimney; 13. a heat exchanger; 14. a blower; 15. supporting legs; 16. an intelligent control box; 2. a ventilation device; 201. a ventilation box; 202. a ventilation tube; 203. a vertical slide bar; 204. a jacking spring; 205. a jacking plate; 206. a frustum-shaped piston; 207. a tapered hole; 208. a retainer ring; 209. a compression spring; 210. a pressure piston; 211. an L-shaped trachea; 3. a catalytic combustion device; 301. a Y-shaped cylinder; 302. an exhaust gas pipe; 303. an exhaust gas solenoid valve; 304. a constant pressure air pipe; 305. a duct blower fan; 306. a heat exchange pipe; 307. fixing the rod; 308. heating wires; 309. a first temperature sensor; 310. a metal mesh type catalyst; 311. a second temperature sensor; 312. a combustion engine; 4. a reversing device; 401. a polyhedron; 402. a cylindrical groove; 403. fixing the air passage; 404. flaring the air passage; 405. a spin column; 406. bending the air passage; 407. a transmission rod; 408. an isolation box; 409. a bull gear; 410. a torsion spring; 411. positioning the shaft; 412. a pinion gear; 413. a take-up pulley; 414. a drive line; 5. an upper air outlet device; 501. a first fixed block; 502. a first buffer chamber; 503. a first tapered slot; 504. a first piston post; 505. a first conical plug; 506. a first fixed cavity; 507. a first communication hole; 508. a first linkage piece; 509. a first limit plate; 510. a first linkage rod; 511. a first weight plate; 512. a first gas lance; 6. a lower air outlet device; 601. a second fixed block; 602. a second buffer chamber; 603. a second tapered slot; 604. a second piston post; 605. a second conical plug; 606. a second fixed cavity; 607. a second communication hole; 608. a second linkage plate; 609. a second limiting plate; 610. a second linkage rod; 611. a second weight plate; 612. a second gas lance; 613. a buffer spring; 7. a transmission device; 700. a reinforcing plate; 701. a fixing strip; 702. a guide post; 703. a force application sleeve; 704. limiting the pore plate; 705. a tilt bar; 706. a horizontal bar; 707. an L-shaped positioning block; 708. a limiting ring; 709. inserting holes; 710. a mounting cavity; 711. a movable hole; 712. a compression spring; 713. a squeeze piston; 714. a plug rod; 715. a fixing plate; 716. rotating the rod; 717. an L-shaped rotating plate; 718. a linkage line; 719. an L-shaped linkage plate; 720. positioning flat tubes; 721. a right-angled trapezoidal block; 722. fixing the ratchet; 723. a mechanical timing electric switch; 724. a drive ratchet gear; 725. raising the head to form a triangular block; 726. clamping a box; 727. a displacement slot; 728. positioning the chute; 729. inclining the clamping hole; 730. a restoring spring; 731. a piston case; 732. a linkage column; 733. inserting holes; 734. a force application elastic sheet; 735. a fixed shaft; 736. a rotating arm; 737. a clamping head; 738. positioning a rod; 739. a sector plate; 740. a limiting strip; 741. a traction rod; 742. a tension spring; 8. a monitoring device; 81. a U-shaped pipe; 82. a separator plate; 83. a right-angle bent pipe; 84. a bellows; 85. a strain piston; 86. a push rod; 87. a first balance spring; 88. a second balance spring.

Detailed Description

The drawings in the embodiments of the invention will be combined; the technical scheme in the embodiment of the invention is clearly and completely described; obviously; the described embodiments are only some of the embodiments of the invention; rather than all embodiments. Based on the embodiments of the invention; all other embodiments obtained by a person skilled in the art without making any inventive step; all fall within the scope of protection of the present invention.

Referring to fig. 1-19, a regenerative catalytic combustion device for VOCs treatment includes a support base 1, and a ventilation device 2 and a catalytic combustion device 3 are disposed on a top surface of the support base 1.

Supporting seat 1 includes backup pad 11, the equal fixed mounting in both ends has chimney 12 about the 11 top surfaces of backup pad, the middle part fixed mounting of 11 top surfaces of backup pad has heat exchanger 13, fixed mounting has the air-blower 14 that is located the left side of heat exchanger 13 on the top surface of backup pad 11, the air intake on the air-blower 14 passes through the fixed intercommunication of an air outlet on pipeline and the heat exchanger 13, air intake and the outside intercommunication that corresponds with this air outlet, fixed mounting has supporting leg 15 and intelligent control box 16 on the top surface of backup pad 11.

The ventilation device 2 comprises a ventilation box 201, the bottom surface of the ventilation box 201 is fixedly connected with the top surface of a support plate 11, a ventilation pipe 202 is fixedly communicated on the left side surface of the ventilation box 201, the other end of the ventilation pipe 202 is fixedly communicated with an interface on a heat exchanger 13, the ventilation pipe 202 is fixedly communicated with a heat exchange pipe 306 through the heat exchanger 13, a vertical sliding rod 203 is fixedly connected between the upper surface and the lower surface of the inner cavity of the ventilation box 201, a jacking spring 204 and a jacking plate 205 are movably sleeved outside the vertical sliding rod 203, the bottom end of the jacking spring 204 is fixedly connected with the bottom surface of the inner cavity of the ventilation box 201, the top end of the jacking spring 204 is fixedly connected with the bottom surface of the jacking plate 205, a frustum-shaped piston 206 is fixedly connected on the top surface of the jacking plate 205, a tapered hole 207 is formed on the top surface of the ventilation box 201, the top end of the frustum-shaped piston 206 is movably inserted inside the tapered hole 207, the right side surface of the inner cavity of the air exchange box 201 is in transmission connection with a pressure piston 210 through a compression spring 209, the pressure piston 210 is in sliding connection with the inner wall of the air exchange box 201, an L-shaped air pipe 211 is fixedly communicated with the top surface of the air exchange box 201, the bottom end of the L-shaped air pipe 211 corresponds to the pressure piston 210, and the right end of the L-shaped air pipe 211 is fixedly communicated with the chimney 12.

The catalytic combustion device 3 comprises a Y-shaped cylinder 301, the bottom surface of the Y-shaped cylinder 301 is fixedly connected with the top end of a supporting leg 15, the left end of the Y-shaped cylinder 301 is fixedly communicated with a waste gas pipe 302, a waste gas electromagnetic valve 303 is arranged outside the waste gas pipe 302, a constant pressure air pipe 304 is fixedly inserted on the top surface of the Y-shaped cylinder 301, the constant pressure air pipe 304 is positioned on the left side of a reversing device 4, the other end of the constant pressure air pipe 304 is fixedly communicated with an air outlet of an air blower 14, the Y-shaped cylinder 301 is provided with the reversing device 4, an upper air outlet device 5, a lower air outlet device 6, a transmission device 7 and a monitoring device 8, a pipeline blowing fan 305 is fixedly inserted on the right end surface of the Y-shaped cylinder 301, a heat exchange pipe 306 is fixedly communicated with the air outlet of the pipeline blowing fan 305, the other end of the heat exchange pipe 306 passes through a branch pipe, the heat exchange tube 306 is snakelike distribution in the inside of Y type section of thick bamboo 301, fixedly connected with dead lever 307 on the inner wall of Y type section of thick bamboo 301 branch pipe, the outside winding of dead lever 307 has heating wire 308, the fixed grafting has first temperature sensor 309 on the surface of Y type section of thick bamboo 301 branch pipe, first temperature sensor 309 and intelligent control case 16 cooperation control heating wire 308, and then control fresh air temperature, first temperature sensor 309 is located the right side of heat exchange tube 306 snakelike section and is located the left side of heating wire 308, the inner wall fixed mounting of Y type section of thick bamboo 301 has the metal mesh type catalyst 310 that is located the heat exchange tube 306 snakelike section left side, the fixed grafting has second temperature sensor 311 and combustor 312 on the surface of Y type section of thick bamboo 301 branch pipe.

The reversing device 4 comprises a polyhedron 401 and an isolation box 408, the polyhedron 401 is fixedly connected to the inner wall of a Y-shaped cylinder 301, a cylindrical groove 402 is formed in the polyhedron 401, fixed air passages 403 are formed in the inner wall of the cylindrical groove 402, the number of the fixed air passages 403 is three, the three fixed air passages 403 are respectively and fixedly communicated with three branch pipes of the Y-shaped cylinder 301, a flared air passage 404 is formed in the left side surface of the polyhedron 401, the flared air passages 404 are fixedly communicated with the corresponding fixed air passages 403, a rotating column 405 is movably inserted in the cylindrical groove 402, the rotating column 405 is in sliding connection with the inner wall of the cylindrical groove 402, a bent air passage 406 is formed in the rotating column 405, two ends of the bent air passage 406 are respectively communicated with the two adjacent fixed air passages 403, a transmission rod 407 is fixedly connected to the front surface of the rotating column 405, the surface of the isolation box 408 is fixedly connected with the surface of the Y-shaped cylinder 301, the end part of the transmission rod 407 extends, a large gear 409 is fixedly sleeved outside the transmission rod 407, a torsion spring 410 is movably sleeved outside the transmission rod 407, one end of the torsion spring 410 is fixedly connected with the inner wall of the isolation box 408, the other end of the torsion spring 410 is fixedly connected with the large gear 409, a positioning shaft 411 is movably sleeved on the inner wall of the isolation box 408, a small gear 412 is fixedly sleeved outside the positioning shaft 411, the small gear 412 is meshed with the large gear 409, one end of the positioning shaft 411 extends to the outside of the isolation box 408 and is fixedly sleeved with a take-up pulley 413, and a transmission line 414 is wound outside the take-up pulley 413.

The upper air outlet device 5 comprises a first fixed block 501, the surface of the first fixed block 501 is fixedly connected with the surface of the Y-shaped cylinder 301, a first buffer cavity 502 is arranged inside the first fixed block 501, a first tapered groove 503 is arranged on the bottom surface of the inner cavity of the first buffer cavity 502, a first piston column 504 is inserted inside the first buffer cavity 502 in a sliding manner, a first tapered plug 505 is fixedly connected to the bottom end of the first piston column 504, the bottom end of the first tapered plug 505 is movably inserted inside the first tapered groove 503, a first fixed cavity 506 is arranged inside the first fixed block 501, a first through hole 507 is arranged on the inner wall of the first fixed cavity 506, the first through hole 507 is fixedly communicated with the first buffer cavity 502, a first linkage sheet 508 is fixedly connected to the side surface of the first piston column 504, the other end of the first linkage sheet 508 passes through the first through hole 507 and is fixedly connected with a first limit plate 509, and the first limit plate 509 is connected with the inner wall of the first fixed cavity 506 in a sliding manner, the bottom surface of the first limiting plate 509 is fixedly connected with a first linkage rod 510, the bottom end of the first linkage rod 510 extends to the outside of the first fixing block 501 and is fixedly connected with a first counterweight plate 511, the first counterweight plate 511 corresponds to the force application sleeve 703, the first fixing block 501 is fixedly inserted with a first gas injection pipe 512, the first gas injection pipe 512 is fixedly communicated with a first conical groove 503, and one end of the first gas injection pipe 512 is fixedly communicated with a branch pipe on the Y-shaped cylinder 301.

The lower air outlet device 6 comprises a second fixed block 601, the surface of the second fixed block 601 is fixedly connected with the surface of the Y-shaped cylinder 301, a second buffer chamber 602 is formed inside the second fixed block 601, a second taper groove 603 is formed on the bottom surface of the inner cavity of the second buffer chamber 602, a second piston column 604 is inserted into the second buffer chamber 602 in a sliding manner, a second tapered plug 605 is fixedly connected to the bottom end of the second piston column 604, the bottom end of the second tapered plug 605 can be inserted into the second taper groove 603, a second fixed chamber 606 is formed inside the second fixed block 601, a second communication hole 607 is formed in the inner wall of the second fixed chamber 606, the second communication hole 607 is fixedly communicated with the second buffer chamber 602, a second linkage piece 608 is fixedly connected to the side surface of the second piston column 604, a second limiting plate 609 is fixedly connected to the other end of the second linkage piece 608 through the second communication hole 607, and a second limiting plate 609 is slidably connected with the inner wall of the second fixed chamber 606, the top surface of the second limiting plate 609 is fixedly connected with a second linkage rod 610, the top end of the second linkage rod 610 extends to the outside of the second fixed block 601 and is fixedly connected with a second counterweight plate 611, the second counterweight plate 611 corresponds to another force application sleeve 703, a second gas injection pipe 612 is fixedly inserted and connected onto the second fixed block 601, the second gas injection pipe 612 is fixedly communicated with the second taper groove 603, one end of the second gas injection pipe 612 is fixedly communicated with another branch pipe of the Y-shaped cylinder 301, a buffer spring 613 is movably sleeved outside the second linkage rod 610, one end of the buffer spring 613 is fixedly connected with the top surface of the inner cavity of the second fixed cavity 606, and the other end of the buffer spring 613 is fixedly connected with the top surface of the second limiting plate 609.

The transmission device 7 comprises a reinforcing plate 700, the reinforcing plate 700 is fixedly connected with the surface of the Y-shaped cylinder 301, the reinforcing plate 700 is positioned between two parallel branch pipes on the Y-shaped cylinder 301, a fixed strip 701 is fixedly connected on the front surface of the reinforcing plate 700, a guide post 702 is fixedly connected on the surface of the fixed strip 701, a force application sleeve 703 is movably sleeved outside the guide post 702, a limit orifice plate 704 is movably sleeved outside the force application sleeve 703, the limit orifice plate 704 is fixedly connected with the reinforcing plate 700, the end part of the force application sleeve 703 is movably connected with an inclined strip 705, the other end of the inclined strip 705 is movably connected with a horizontal rod 706, the left end of the horizontal rod 706 is fixedly connected with the end part of the transmission line 414, an L-shaped positioning block 707 is movably sleeved outside the horizontal rod 706, a limiting ring 708 positioned on the right side of the L-shaped positioning block 707 is fixedly sleeved outside the horizontal rod 706, and the limiting ring 708, an inserting hole 709 positioned inside an L-shaped positioning block 707 is formed in the horizontal rod 706, an installation cavity 710 is formed inside the L-shaped positioning block 707, a movable hole 711 is formed in the right side surface of the L-shaped positioning block 707, the movable hole 711 is fixedly communicated with the installation cavity 710, the bottom surface of the inner cavity of the installation cavity 710 is in transmission connection with an extrusion piston 713 through an extrusion spring 712, the extrusion piston 713 is in sliding connection with the inner wall of the installation cavity 710, an inserting rod 714 is fixedly connected to the top surface of the extrusion piston 713, the top end of the inserting rod 714 is movably inserted into the inserting hole 709, a fixing plate 715 is fixedly connected to the right side surface of the L-shaped positioning block 707, a rotating rod 716 is movably inserted into the fixing plate 715, an L-shaped rotating sheet 717 is fixedly sleeved outside the rotating rod 716, the left end of the L-shaped rotating sheet 717 penetrates through the movable hole 711 and extends into the installation cavity 710 and is in contact connection with the inner wall of the installation cavity 710, an L-shaped rotating sheet 717 is in contact connection with the surface of an L-shaped positioning block 707, a linkage line 718 is fixedly connected to the bottom end of the L-shaped rotating sheet 717, L-shaped linkage plates 719 are fixedly connected to the right ends of the upper and lower surfaces of a horizontal rod 706, a flat positioning pipe 720 is movably sleeved on the horizontal section of the L-shaped linkage plates 719, the flat positioning pipe 720 is fixedly connected with a reinforcing plate 700, a right-angled trapezoidal block 721 positioned at the right side of the flat positioning pipe 720 is fixedly connected to the inner surface of the L-shaped linkage plates 719, a fixed ratchet block 722 positioned at the right side of the right-angled trapezoidal block 721 is fixedly connected to the inner surface of the L-shaped linkage plates 719, a mechanical timing switch 723 is fixedly connected to the front surface of the reinforcing plate 700, a transmission ratchet wheel 724 is fixedly sleeved to an adjusting rod on the mechanical timing switch 723, the transmission ratchet wheel 724 is in unidirectional engagement with the fixed ratchet block 722, the front surface of the reinforcing plate 700 is fixedly connected with a clamping box 726, the bottom surface of the clamping box 726 is provided with a displacement groove 727, the top surface of the clamping box 726 is provided with a positioning sliding groove 728, the right side surface of the clamping box 726 is provided with an inclined clamping hole 729, the left side surface of the inner cavity of the clamping box 726 is in transmission connection with a piston box 731 through a restoring spring 730, the piston box 731 is in sliding connection with the inner wall of the clamping box 726, the top surface of the piston box 731 is fixedly connected with a linkage column 732, the top end of the linkage column 732 passes through the positioning sliding groove 728 and extends to the outside of the clamping box 726, the right side surface of the piston box 731 is provided with a through hole 733, the left side surface of the inner cavity of the piston box 731 is fixedly connected with a force application elastic sheet 734, the inner wall of the piston box 731 is movably sleeved with a fixed shaft 735, the outside of the fixed shaft 735 is fixedly sleeved with a rotating arm 736, the end of the force application elastic sheet 734, the clamping joint 737 is matched with the inclined clamping hole 729, the inner wall of the piston box 731 is movably sleeved with the positioning rod 738, the outer portion of the positioning rod 738 is fixedly sleeved with a sector plate 739, the sector plate 739 is movably inserted on the bottom surface of the piston box 731 and movably inserted in the displacement groove 727, the sector plate 739 is in contact connection with the bottom surface of the rotating arm 736, the front surface of the sector plate 739 is fixedly connected with a limiting strip 740, the limiting strip 740 is in contact connection with the bottom surface of the inner cavity of the piston box 731, the left side surface of the piston box 731 is fixedly connected with a pulling rod 741, the left end of the pulling rod 741 extends to the outer portion of the clamping box 726 and is fixedly connected with a pulling spring 742, the other end of the pulling spring 742 is fixedly connected with the right end of the horizontal rod 706, and one end of the linkage line.

The monitoring device 8 comprises a U-shaped pipe 81, two ends of the U-shaped pipe 81 are fixedly communicated with the same branch pipe on the Y-shaped cylinder 301, a metal mesh catalyst 310 is positioned between two ends of the U-shaped pipe 81, the inner wall of the U-shaped pipe 81 is fixedly connected with a partition plate 82, a right-angle bent pipe 83 is fixedly inserted on the partition plate 82, the other end of the right-angle bent pipe 83 is in transmission connection with a strain piston 85 through a corrugated pipe 84, the strain piston 85 is in sliding connection with the inner wall of the U-shaped pipe 81, a push rod 86 is fixedly connected on the bottom surface of the strain piston 85, a guide chute matched with the push rod 86 is formed in the bottom surface of the U-shaped pipe 81, the other end of the push rod 86 penetrates through the guide, the sector plates 739 are matched, the inner wall of the U-shaped pipe 81 is in transmission connection with the strain piston 85 through a first balance spring 87, and the right-angle elbow 83 is in transmission connection with the strain piston 85 through a second balance spring 88.

The working principle is as follows:

firstly, the power supply of the regenerative catalytic combustion device for VOCs treatment is started through the intelligent control box 16, then the blower 14 is started and drives external fresh air to pass through the heat exchanger 13, the constant-pressure air pipe 304 and enter the Y-shaped cylinder 301, then the fresh air passes through the flared air passage 404, the bent air passage 406 and the fixed air passage 403 and enters the upper supporting pipe of the Y-shaped cylinder 301, then the fresh air is blown through the surface of the metal mesh type catalyst 310, the surface of the serpentine section of the heat exchange pipe 306 and the surface of the heating wire 308, then the fresh air passes through the pipeline blower fan 305, the heat exchange pipe 306, the heat exchanger 13 and the ventilation pipe 202 and enters the ventilation box 201, then the pressure piston 210 moves to the right under the push of air pressure and squeezes the compression spring 209 to elastically compress, then the bottom opening of the L-shaped air pipe 211 is opened, then the fresh air passes through the L-shaped air pipe 211 and enters, then the second temperature sensor 311 detects that the temperature inside the upper supporting pipe of the Y-shaped cylinder 301 is lower than the catalytic combustion temperature and sends an electric signal to the intelligent control box 16, then the intelligent control box 16 controls the operation of the burner 312, then the burner 312 heats the air inside the upper supporting pipe of the Y-shaped cylinder 301, then the hot air heats the metal mesh catalyst 310, the heat exchange pipe 306 and the heating wire 308 until the temperature inside the upper supporting pipe of the Y-shaped cylinder 301 reaches the ignition temperature, then the second temperature sensor 311 detects the situation and sends an electric signal to the intelligent control box 16, then the intelligent control box 16 controls the operation of the burner 312 to be stopped, the reciprocating is carried out in such a way that the temperature inside the Y-shaped cylinder 301 is controlled within the catalytic combustion temperature range, after the temperature inside the upper supporting pipe of the Y-shaped cylinder 301 reaches the catalytic combustion temperature range, the intelligent control box 16 controls the waste gas electromagnetic valve 303 to, then the VOCs waste gas moves along with the fresh air, the fresh air and the VOCs waste gas are gradually mixed to form mixed gas in the moving process, then the mixed gas is catalyzed and combusted on the surface of the metal mesh type catalyst 310 and emits a large amount of heat, the temperature of the catalytic combustion tail gas is further raised, then the catalytic combustion tail gas heats the heat exchange pipe 306, the heating wire 308 and the heat exchanger 13 to achieve the purpose of heat storage, then the heat exchanger 13 preheats the fresh air driven by the blower 14 and the fresh air in the heat exchange pipe 306 to raise the temperature of the lower part of the Y-shaped cylinder 301 and improve the heat utilization rate, then the catalytic combustion tail gas passes through the ventilation device 2 and is discharged from the chimney 12, along with the prolonging of the service time, more carbon deposition is generated in the metal mesh type catalyst 310, the carbon deposition enables the meshes on the metal mesh type catalyst 310 to gradually become smaller and the air resistance to increase, then the air pressure drop on the left and right sides of the metal mesh catalyst 310 is gradually increased, then the strain piston 85 drives the push rod 86 to move rightwards under the action of the air pressure, then the push rod 86 pushes the linkage column 732 to move rightwards, then the linkage column 732 drives the piston box 731 to move rightwards, then the piston box 731 drives the clamping joint 737 to move rightwards through the fixing shaft 735 and the rotating arm 736, then the clamping joint 737 moves rightwards, then the clamping joint 737 is driven to move upwards under the guiding action of the inclined clamping hole 729, then the rotating arm 736 drives the clamping joint 737 to turn over anticlockwise, then the clamping joint 737 passes through the inclined clamping hole 729, then the rotating arm 736 turns over clockwise under the action of the elastic force of the force applying elastic sheet 734, so that the clamping joint 737 is clamped on the inclined clamping hole 729, in the process, the piston box 731 drives the pulling rod 741 to move right, meanwhile, the pulling rod 741 pulls the linkage line 718, the linkage line 718 pulls the L-shaped rotating plate 717, the L-shaped rotating plate 717 turns over counterclockwise and gradually applies downward thrust to the extrusion piston 713, then the extrusion piston 713 drives the plug rod 714 to move downward gradually, then the plug rod 714 moves out of the plug hole 709 when the clamping joint 737 is clamped on the inclined clamping hole 729, then the horizontal rod 706 drives the L-shaped linkage plate to move rightwards rapidly and pulls the transmission line 414 under the action of the elastic force of the pulling spring 742, then the horizontal rod 706 moves rightwards to pull one end of the inclined bar 705, then the inclined bar 705 turns over with the other end as a base point until the inclined bar 705 is in a vertical state, in the process, the inclined bar 705 applies thrust to the force application sleeve, then the force application sleeve 703 applies thrust to the first counterweight plate 511 and the second counterweight plate 611, and then the first plate 511 passes through the first linkage rod 510, The first limiting plate 509, the first linkage piece 508 and the first piston column 504 bring the first conical plug 505 to move upwards to open the first conical groove 503 and further conduct the first air nozzle 512, meanwhile, the second counterweight plate 611 carries the second conical plug 605 to move downwards through the second linkage rod 610, the second limiting plate 609, the second linkage piece 608 and the second piston column 604, the second conical groove 603 is blocked, and further the second air nozzle 612 is blocked, in the process that the transmission line 414 is pulled, the transmission line 414 is released from the outside of the take-up pulley 413 and drives the take-up pulley 413 to rotate clockwise, then the take-up pulley 413 carries the rotary column 405 to rotate anticlockwise through the meshing action of the positioning shaft 411 and the small gear 412 and the large gear 409, the transmission rod 407 and the rotary column 405, then when the horizontal rod 706 moves rightwards to a dead point position, the inclined bar 705 is in contact connection with the L-shaped positioning block 707, the left branch pipe of the Y-shaped cylinder 301 passes through the flaring 404, the fixed air flue 403 and the bent air flue 406 are communicated with a lower branch pipe on the Y-shaped cylinder 301, then VOCs waste gas and fresh air are circulated from the lower branch pipe of the Y-shaped cylinder 301 and purified in the lower branch pipe, the purpose of automatically replacing the metal mesh type catalyst 310 is achieved, then tail gas is exhausted through another air interchanger 2 and a chimney 12, in the process that an L-shaped linkage plate 719 moves rightwards, the L-shaped linkage plate 719 drives a right-angled trapezoidal block 721 and a fixed ratchet 722 to move rightwards, then the fixed ratchet 722 drives a transmission ratchet wheel 724 to rotate, then the transmission ratchet wheel 724 drives an adjusting rod of a mechanical timing electric switch 723 to rotate, the mechanical timing electric switch 723 is subjected to time setting, in the process, as another set of fixed ratchet cannot be meshed with another transmission ratchet wheel 724, the other mechanical timing electric switch 723 cannot be subjected to time setting, then the end of the L-shaped linkage plate 719 is driven to overturn upwards under the action of the right-angled trapezoidal block 721 matched with a lifting, separating the fixed ratchet 722 from the transmission ratchet wheel 724, starting timing by the mechanical timing electric switch 723, then opening the pipeline blowing fan 305 and the heating wire 308 on the upper branch pipe of the Y-shaped barrel 301, then forming vacuum inside the air exchange box 201 under the action of air suction of the pipeline blowing fan 305, then moving the pressure piston 210 to the left under the action of the elastic force of the compression spring 209 and blocking the L-shaped air pipe 211, meanwhile moving the frustum-shaped piston 206 downwards under the action of pressure difference to open the tapered hole 207, and then driving fresh air by the pipeline blowing fan 305 to pass through the tapered hole 207, the air exchange box 201, the air exchange pipe 202, the heat exchanger 13, the heat exchange pipe 306 inside the lower branch pipe of the Y-shaped barrel 301, and the pipeline blowing fan 305 to enter the inside of the upper branch pipe of the Y-shaped barrel 301 and blow the heating wire 308, the heat exchange pipe 306 and the surface of the metal mesh type catalyst 310 inside the upper branch pipe of the Y-, a push rod 86 on the monitoring device 8 corresponding to the upper supporting pipe of the Y-shaped barrel 301 moves leftwards under the action of the elastic force of an air resistance, a first balance spring 87 and a second balance spring 88, then a heating wire 308 heats fresh air to enable the temperature of the fresh air to reach about 500 ℃, then high-temperature fresh air is blown on the metal mesh type catalyst 310 in the upper supporting pipe of the Y-shaped barrel 301 to treat the carbon deposition on the metal mesh type catalyst 310, after the timing of a mechanical timing electric switch 723 is finished, a pipeline blowing fan 305 and the heating wire 308 are closed to finish the automatic cleaning of the carbon deposition on the metal mesh type catalyst 310, then the carbon deposition of the metal mesh type catalyst 310 in the lower supporting pipe of the Y-shaped barrel 301 becomes more and more serious, the pressure drop becomes larger and larger, then the monitoring device 8 on the lower supporting pipe of the Y-shaped barrel 301 presses a sector plate 739 through the push rod 86, the sector plate 739 turns over and applies an anticlockwise, then the rotating arm 736 carries the bayonet joint 737 to move upwards, then the bayonet joint 737 is not clamped with the inclined bayonet 729 any more, then the piston housing 731 carries the pulling rod 741 and the bayonet joint 737 to move leftwards under the action of the elastic pulling force of the restoring spring 730, then the pulling rod 741 pushes the horizontal rod 706 to move leftwards through the pulling spring 742, then the horizontal rod 706 pushes the inclined bar 705 to tilt and turn over, then the inclined bar 705 pulls the two force application sleeves 703 to approach each other, then the first weight plate 511 carries the first tapered plug 505 to move downwards through the first linkage rod 510, the first limit plate 509, the first linkage piece 508 and the first piston column 504 under the action of gravity, so as to block the first tapered slot 503, and further disconnect the first air injection pipe 512, and simultaneously the second weight plate 611 carries the second tapered plug 605 to move upwards under the action of the elastic force of the buffer spring 613 through the second linkage rod 610, the second limit plate 609, the second linkage piece 608 and the second piston column 604, opening the second taper groove 603, further opening the second air injection pipe 612, simultaneously driving the large gear 409 to rotate clockwise through the transmission rod 407 under the torsion action of the torsion spring 410, then communicating the left branch pipe of the Y-shaped cylinder 301 with the upper branch pipe on the Y-shaped cylinder 301 through the flared air passage 404, the fixed air passage 403 and the bent air passage 406, enabling the upper branch pipe of the Y-shaped cylinder 301 to be put into use again, pausing the use of the lower branch pipe, driving the two L-shaped linkage plates 719 by the horizontal rod 706 in the process, driving the fixed ratchet on the lower L-shaped linkage plate 719 to move leftwards through the transmission ratchet gear 724, driving the adjusting shaft of the other mechanical timing electric switch 722 to rotate, setting the time of the other mechanical timing electric switch 723, then turning the end of the lower L-shaped linkage plate 719 downwards under the matching action of the other group of right-angle trapezoidal blocks 721 and the head lifting triangular block 725, and separating the fixed ratchet 722 from the transmission ratchet 724, after the time setting of another mechanical timing switch 723 is completed, the mechanical timing switch 723 starts timing, then the pipeline blowing fan 305 and the heating wire 308 on the lower branch pipe of the Y-shaped barrel 301 are turned on, then the inside of another air exchange box 201 forms vacuum under the suction of the pipeline blowing fan 305, then the pressure piston 210 moves rightwards under the elastic force of the compression spring 209 and blocks the L-shaped air pipe 211, and simultaneously the frustum-shaped piston 206 moves downwards under the action of the pressure difference to open the tapered hole 207, and then fresh air is driven by the pipeline blowing fan 305 to pass through the tapered hole 207, the air exchange box 201, the air exchange tube 202, the heat exchanger 13, the heat exchange tube 306 inside the upper branch pipe of the Y-shaped barrel 301, the pipeline blowing fan 305 enters the inside the lower branch pipe of the Y-shaped barrel 301 and blows on the surface of the heating wire 308, the heat exchange tube 306 and the metal mesh catalyst 310 inside the lower branch pipe of the Y-shaped barrel 301 and is discharged from the second, the push rod 86 on the monitoring device 8 corresponding to the lower branch pipe of the Y-shaped cylinder 301 moves leftwards rapidly under the action of the air resistance, the first balance spring 87 and the second balance spring 88, so that the push rod 86 is positioned on the left side of the sector plate 739, then the heating wire 308 heats the fresh air to make the temperature of the fresh air reach about 500 ℃, then the high-temperature fresh air is sprayed on the metal mesh type catalyst 310 in the lower branch pipe of the Y-shaped cylinder 301 to treat the carbon deposition on the metal mesh type catalyst 310, after the timing of the mechanical timing switch 723 is finished, the pipeline blowing fan 305 and the heating wire 308 are closed, and the operation is repeated in such a way, so that the two parallel branch pipes of the Y-shaped cylinder 301 are put into use alternately.

The above; but are merely preferred embodiments of the invention; the scope of the invention is not limited thereto; any person skilled in the art is within the technical scope of the present disclosure; the technical scheme and the improved concept of the invention are equally replaced or changed; are intended to be covered by the scope of the present invention.

Claims

1. The utility model provides a heat accumulation formula catalytic combustion device for VOCs handles, includes supporting seat (1), its characterized in that: the top surface of the supporting seat (1) is provided with an air interchanger (2) and a catalytic combustion device (3);

the catalytic combustion device (3) comprises a Y-shaped cylinder (301), the bottom surface of the Y-shaped cylinder (301) is fixedly connected with the top end of the supporting leg (15), the left end of the Y-shaped cylinder (301) is fixedly communicated with a waste gas pipe (302), a waste gas electromagnetic valve (303) is arranged outside the waste gas pipe (302), a constant pressure air pipe (304) is fixedly inserted and connected onto the top surface of the Y-shaped cylinder (301), the constant pressure air pipe (304) is positioned on the left side of the reversing device (4), the other end of the constant pressure air pipe (304) is fixedly communicated with an air outlet of the air blower (14), the reversing device (4), the upper air outlet device (5), the lower air outlet device (6), the transmission device (7) and the monitoring device (8) are arranged on the Y-shaped cylinder (301), a pipeline blowing fan (305) is fixedly inserted and connected onto the right end surface of the Y-shaped cylinder (301), and, the other end of the heat exchange tube (306) penetrates through one branch tube on the Y-shaped cylinder (301) and is fixedly communicated with the other interface on the heat exchanger (13), the heat exchange tube (306) is fixedly connected with the inner wall of the Y-shaped cylinder (301), the heat exchange tube (306) is distributed in a snake shape in the Y-shaped cylinder (301), a fixing rod (307) is fixedly connected to the inner wall of the branch tube of the Y-shaped cylinder (301), a heating wire (308) is wound outside the fixing rod (307), a first temperature sensor (309) is fixedly inserted into the surface of the branch tube of the Y-shaped cylinder (301), the first temperature sensor (309) is positioned on the right side of the snake-shaped section of the heat exchange tube (306) and is positioned on the left side of the heating wire (308), a metal mesh type catalyst (310) positioned on the left side of the snake-shaped section of the heat exchange tube (306) is fixedly installed on the inner wall of the Y-shaped cylinder (301);

the reversing device (4) comprises a polyhedron (401) and an isolation box (408), the polyhedron (401) is fixedly connected to the inner wall of a Y-shaped cylinder (301), a cylindrical groove (402) is formed inside the polyhedron (401), fixed air passages (403) are formed in the inner wall of the cylindrical groove (402), the number of the fixed air passages (403) is three, the three fixed air passages (403) are respectively and fixedly communicated with three branch pipes of the Y-shaped cylinder (301), a flared air passage (404) is formed in the left side surface of the polyhedron (401), the flared air passages (404) are fixedly communicated with the corresponding fixed air passages (403), a rotating column (405) is movably inserted in the cylindrical groove (402), the rotating column (405) is slidably connected with the inner wall of the cylindrical groove (402), a bent air passage (406) is formed in the rotating column (405), and two ends of the bent air passages (406) are respectively communicated with two adjacent fixed air passages (403), a transmission rod (407) is fixedly connected to the front face of the rotary column (405), the surface of the isolation box (408) is fixedly connected with the surface of the Y-shaped cylinder (301), the end of the transmission rod (407) extends into the isolation box (408) and is movably sleeved with the inner wall of the isolation box (408), a large gear (409) is fixedly sleeved outside the transmission rod (407), a torsion spring (410) is movably sleeved outside the transmission rod (407), one end of the torsion spring (410) is fixedly connected with the inner wall of the isolation box (408), the other end of the torsion spring (410) is fixedly connected with the large gear (409), a positioning shaft (411) is movably sleeved on the inner wall of the isolation box (408), a small gear (412) is fixedly sleeved outside the positioning shaft (411), the small gear (412) is meshed with the large gear (409), one end of the positioning shaft (411) extends to the outside of the isolation box (408) and is fixedly sleeved with a take-up pulley (413), a transmission line (414) is wound outside the take-up pulley (413);

the upper air outlet device (5) comprises a first fixed block (501), the surface of the first fixed block (501) is fixedly connected with the surface of the Y-shaped cylinder (301), a first buffer cavity (502) is formed inside the first fixed block (501), a first tapered groove (503) is formed in the bottom surface of the inner cavity of the first buffer cavity (502), a first piston column (504) is inserted into the first buffer cavity (502) in a sliding mode, a first tapered plug (505) is fixedly connected to the bottom end of the first piston column (504), the bottom end of the first tapered plug (505) is movably inserted into the first tapered groove (503), a first fixed cavity (506) is formed inside the first fixed block (501), a first connecting hole (507) is formed in the inner wall of the first fixed cavity (506), the first connecting hole (507) is fixedly communicated with the first buffer cavity (502), a first linkage plate (508) is fixedly connected to the side surface of the first piston column (504), the other end of the first linkage piece (508) penetrates through the first communication hole (507) and is fixedly connected with a first limiting plate (509), the first limiting plate (509) is connected with the inner wall of the first fixed cavity (506) in a sliding mode, a first linkage rod (510) is fixedly connected to the bottom surface of the first limiting plate (509), the bottom end of the first linkage rod (510) extends to the outside of the first fixed block (501) and is fixedly connected with a first counterweight plate (511), a first gas injection pipe (512) is fixedly inserted into the first fixed block (501), the first gas injection pipe (512) is fixedly communicated with the first conical groove (503), and one end of the first gas injection pipe (512) is fixedly communicated with a branch pipe on the Y-shaped cylinder (301);

the lower air outlet device (6) comprises a second fixed block (601), the surface of the second fixed block (601) is fixedly connected with the surface of the Y-shaped cylinder (301), a second buffer cavity (602) is formed in the second fixed block (601), a second conical groove (603) is formed in the bottom surface of the inner cavity of the second buffer cavity (602), a second piston column (604) is inserted in the second buffer cavity (602) in a sliding mode, a second conical plug (605) is fixedly connected to the bottom end of the second piston column (604), the bottom end of the second conical plug (605) can be inserted in the second conical groove (603), a second fixed cavity (606) is formed in the second fixed block (601), a second communicating hole (607) is formed in the inner wall of the second fixed cavity (606), the second communicating hole (607) is fixedly communicated with the second buffer cavity (602), a second coupling piece (608) is fixedly connected to the side surface of the second piston column (604), the other end of the second linkage piece (608) penetrates through the second communication hole (607) and is fixedly connected with a second limiting plate (609), the second limiting plate (609) is in sliding connection with the inner wall of the second fixed cavity (606), the top surface of the second limiting plate (609) is fixedly connected with a second linkage rod (610), the top end of the second linkage rod (610) extends to the outside of the second fixed block (601) and is fixedly connected with a second balance weight plate (611), a second air injection pipe (612) is fixedly inserted into the second fixed block (601), the second air injection pipe (612) is fixedly communicated with the second taper groove (603), one end of the second air injection pipe (612) is fixedly communicated with the other branch pipe of the Y-shaped cylinder (301), a buffer spring (613) is movably sleeved outside the second linkage rod (610), one end of the buffer spring (613) is fixedly connected with the top surface of the inner cavity of the second fixed cavity (606), and the other end of the buffer spring (613) is fixedly connected with the top surface of the second limiting plate (609);

the transmission device (7) comprises a reinforcing plate (700), the reinforcing plate (700) is fixedly connected with the surface of a Y-shaped cylinder (301), the reinforcing plate (700) is positioned between two parallel branch pipes on the Y-shaped cylinder (301), a fixing strip (701) is fixedly connected on the front surface of the reinforcing plate (700), a guide post (702) is fixedly connected on the surface of the fixing strip (701), a force application sleeve (703) is movably sleeved outside the guide post (702), a limiting hole plate (704) is movably sleeved outside the force application sleeve (703), the limiting hole plate (704) is fixedly connected with the reinforcing plate (700), an inclined strip (705) is movably connected at the end part of the force application sleeve (703), a horizontal rod (706) is movably connected at the other end of the inclined strip (705), the left end of the horizontal rod (706) is fixedly connected with the end part of a transmission line (414), an L-shaped positioning block (707) is movably sleeved outside the horizontal rod (706), a limiting ring (708) positioned on the right side of an L-shaped positioning block (707) is fixedly sleeved outside a horizontal rod (706), the limiting ring (708) is in contact connection with the L-shaped positioning block (707), an insertion hole (709) positioned inside the L-shaped positioning block (707) is formed in the horizontal rod (706), a mounting cavity (710) is formed in the L-shaped positioning block (707), a movable hole (711) is formed in the right side surface of the L-shaped positioning block (707), the movable hole (711) is fixedly communicated with the mounting cavity (710), the bottom surface of the inner cavity of the mounting cavity (710) is in transmission connection with an extrusion piston (713) through an extrusion spring (712), the extrusion piston (713) is in sliding connection with the inner wall of the mounting cavity (710), an insertion rod (714) is fixedly connected to the top surface of the extrusion piston (713), the top end of the insertion rod (714) is movably inserted into the insertion hole (709), a fixing plate (715) is fixedly connected to the right side, a rotating rod (716) is movably inserted and connected onto the fixed plate (715), an L-shaped rotating sheet (717) is fixedly sleeved outside the rotating rod (716), the left end of the L-shaped rotating sheet (717) penetrates through the movable hole (711) and extends into the installation cavity (710) and is in contact connection with the inner wall of the installation cavity (710), the left end of the L-shaped rotating sheet (717) is located above the extrusion piston (713), the L-shaped rotating sheet (717) is in contact connection with the surface of the L-shaped positioning block (707), a linkage line (718) is fixedly connected to the bottom end of the L-shaped rotating sheet (717), L-shaped linkage plates (719) are fixedly connected to the right ends of the upper surface and the lower surface of the horizontal rod (706), positioning flat tubes (720) are movably sleeved on the horizontal section of the L-shaped linkage plates (719), the positioning flat tubes (720) are fixedly connected with the reinforcing plate (700), right-angle trapezoidal blocks (721) located on the right side of the positioning flat tubes (720) are fixedly connected to the inner surface, a fixed ratchet (722) positioned on the right side of the right-angled trapezoidal block (721) is fixedly connected to the inner surface of the L-shaped linkage plate (719), a mechanical timing electric switch (723) is fixedly connected to the front of the reinforcing plate (700), a transmission ratchet gear (724) is fixedly sleeved on an adjusting rod of the mechanical timing electric switch (723), the transmission ratchet gear (724) is in one-way meshing with the fixed ratchet (722), a head raising triangular block (725) matched with the right-angled trapezoidal block (721) is fixedly connected to the front of the reinforcing plate (700), a clamping box (726) is fixedly connected to the front of the reinforcing plate (700), a displacement groove (727) is formed in the bottom surface of the clamping box (726), a positioning chute (728) is formed in the top surface of the clamping box (726), an inclined clamping hole (729) is formed in the right side surface of the clamping box (726), a piston box (731) is in transmission connection with the left side surface of the inner cavity of the clamping box, the piston box (731) is connected with the inner wall of the clamping box (726) in a sliding manner, a linkage column (732) is fixedly connected to the top surface of the piston box (731), the top end of the linkage column (732) penetrates through the positioning sliding groove (728) and extends to the outside of the clamping box (726), a through hole (733) is formed in the right side surface of the piston box (731), a force application elastic sheet (734) is fixedly connected to the left side surface of the inner cavity of the piston box (731), a fixing shaft (735) is movably sleeved on the inner wall of the piston box (731), a rotating arm (736) is fixedly sleeved on the outside of the fixing shaft (735), the end of the force application elastic sheet (736) is in contact connection with the top surface of the rotating arm (736), the other end of the rotating arm (736) penetrates through the through hole (733) and is fixedly connected with a clamping joint (737), the clamping joint (737) is matched with the inclined clamping hole (729), a positioning rod (, a sector plate (739) is fixedly sleeved outside the positioning rod (738), the sector plate (739) is movably inserted on the bottom surface of the piston box (731) and movably inserted inside the displacement groove (727), the sector plate (739) is in contact connection with the bottom surface of the rotating arm (736), a limit strip (740) is fixedly connected to the front surface of the sector plate (739), the limit strip (740) is in contact connection with the bottom surface of the inner cavity of the piston box (731), a pulling rod (741) is fixedly connected to the left side surface of the piston box (731), the left end of the pulling rod (741) extends to the outside of the clamping box (726) and is fixedly connected with a pulling spring (742), the other end of the pulling spring (742) is fixedly connected with the right end of the horizontal rod (706), and one end of the linkage line (718) is fixedly connected with the bottom surface of the pulling rod (741);

the monitoring device (8) comprises a U-shaped pipe (81), two ends of the U-shaped pipe (81) are fixedly communicated with the same branch pipe on the Y-shaped cylinder (301), a metal mesh type catalyst (310) is positioned between two end parts of the U-shaped pipe (81), the inner wall of the U-shaped pipe (81) is fixedly connected with a partition plate (82), a right-angle bent pipe (83) is fixedly inserted on the partition plate (82), the other end of the right-angle bent pipe (83) is connected with a strain piston (85) in a transmission manner through a corrugated pipe (84), the strain piston (85) is connected with the inner wall of the U-shaped pipe (81) in a sliding manner, a push rod (86) is fixedly connected onto the bottom surface of the strain piston (85), a guide sliding groove matched with the push rod (86) is formed on the bottom surface of the U-shaped pipe (81), the other end of the push rod (86) penetrates through the guide sliding groove and extends to the outside of the, the inner wall of the U-shaped pipe (81) is in transmission connection with the strain piston (85) through a first balance spring (87), and the right-angle bent pipe (83) is in transmission connection with the strain piston (85) through a second balance spring (88).

2. A regenerative catalytic combustion apparatus for the treatment of VOCs as recited in claim 1, wherein: supporting seat (1) includes backup pad (11), the equal fixed mounting in both ends has chimney (12) about backup pad (11) top surface, the middle part fixed mounting of backup pad (11) top surface has heat exchanger (13), fixed mounting has air-blower (14) that are located heat exchanger (13) left on the top surface of backup pad (11), air intake on air-blower (14) passes through the fixed intercommunication of an air outlet on pipeline and heat exchanger (13), air intake and outside intercommunication corresponding with this air outlet, fixed mounting has supporting leg (15) and intelligent control case (16) on the top surface of backup pad (11).

3. A regenerative catalytic combustion apparatus for the treatment of VOCs as recited in claim 1, wherein: the air exchange device (2) comprises an air exchange box (201), the bottom surface of the air exchange box (201) is fixedly connected with the top surface of the supporting plate (11), an air exchange pipe (202) is fixedly communicated on the left side surface of the air exchange box (201), the other end of the air exchange pipe (202) is fixedly communicated with an interface on the heat exchanger (13), a vertical sliding rod (203) is fixedly connected between the upper surface and the lower surface of the inner cavity of the air exchange box (201), a jacking spring (204) and a jacking plate (205) are movably sleeved on the outer portion of the vertical sliding rod (203), the bottom end of the jacking spring (204) is fixedly connected with the bottom surface of the inner cavity of the air exchange box (201), the top end of the jacking spring (204) is fixedly connected with the bottom surface of the jacking plate (205), a frustum-shaped piston (206) is fixedly connected on the top surface of the jacking plate (205), a conical hole (207) is formed in the top surface of the air exchange box (201), and the top end of, fixedly connected with is located retaining ring (208) on jacking board (205) right side on the inner wall of ventilation box (201), the right side of ventilation box (201) inner chamber is connected with pressure piston (210) through compression spring (209) transmission, pressure piston (210) and the inner wall sliding connection of ventilation box (201), fixed intercommunication has L type trachea (211) on the top surface of ventilation box (201), the bottom and pressure piston (210) of L type trachea (211) are corresponding, the right-hand member and chimney (12) fixed intercommunication of L type trachea (211).