Adsorption equipment for VOCs waste gas treatment in petrochemical industry

Abstract

The utility model discloses adsorption equipment for VOCs (volatile organic compounds) waste gas treatment in petrochemical industry, which belongs to the technical field of waste gas treatment and comprises a waste gas treatment box, an exhaust pipe is fixedly connected onto the side wall of the waste gas treatment box, and a heating mechanism is arranged in the waste gas treatment box. An adsorption mechanism is arranged in the waste gas treatment box and is positioned above the heating mechanism; the circulating assembly is arranged, the rotating shaft is rotated under the action of the bearing seat, the rotating shaft rotates to drive the rotating disc to rotate, the position relation between the rotating disc and the adjusting opening in the fixed top ring is adjusted, and after VOCs waste gas obtained after follow-up adsorption treatment is exhausted into the output pipe through the exhaust pipe, part of the treated VOCs waste gas is exhausted into the peripheral environment through the adjusting piece; part of the treated VOCs waste gas is injected into the gas inlet pipe through the circulating pipe, and the VOCs waste gas subsequently injected into the gas inlet pipe is preheated, so that the workload of the heating mechanism is reduced, and the treatment efficiency of the VOCs waste gas is improved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to waste gas treatment technical field, concretely relates to a kind of adsorption equipment for VOCs waste gas treatment of petroleum chemical industry. BACKGROUND

[0002] Waste gas treatment is also called waste gas purification.Waste gas treatment refers to the pretreatment of waste gas generated in industrial sites, factory workshops before external discharge to meet the standards of waste gas external discharge.

[0003] Chinese patent application No.202220398262.8 discloses a VOCs waste gas oxidation adsorption treatment device, comprising a waste gas treatment box, an air inlet pipe and an air outlet pipe, a treatment inner cavity is formed in the waste gas treatment box, a heating device is arranged below the treatment inner cavity inside the waste gas treatment box, an installation slot is formed in the front surface of the waste gas treatment box and penetrates into the treatment inner cavity, a waste gas adsorption device is arranged inside the installation slot, universal wheels are fixedly installed at the four top corners of the lower surface of the waste gas treatment box, and the air inlet pipe is fixedly installed on the upper surface right side of the waste gas treatment box.In the utility model, four groups of universal wheels are arranged at the bottom of the waste gas treatment box, so that the device as a whole has a moving effect, and the device as a whole can be moved to a suitable position according to actual use needs, the hand wheel is held and the threaded rod is twisted, the supporting base is pushed down and tightly attached to the ground to generate a certain friction effect, and the device is prevented from moving randomly.

[0004] In the above-mentioned patent, the treated waste gas is directly discharged to the peripheral environment through the air outlet pipe, and the heat in the treated waste gas is diffused to the peripheral environment, which easily causes waste of heat resources; in addition, the waste gas is directly injected into the waste gas treatment box through the air inlet pipe, and the impurities mixed in the waste gas enter the waste gas treatment box, which increases the adsorption treatment burden of the internal components of the waste gas treatment box. UTILITY MODEL CONTENTS

[0005] To solve the problems raised in the above background art, the utility model provides a kind of adsorption equipment for VOCs waste gas treatment of petroleum chemical industry, with the characteristics of recycling, filtering and impurity removal.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: a kind of adsorption equipment for VOCs waste gas treatment of petroleum chemical industry, comprising a waste gas treatment box, an air outlet pipe is fixedly connected to the side wall of the waste gas treatment box, a heating mechanism is arranged in the waste gas treatment box, an adsorption mechanism is arranged above the heating mechanism in the waste gas treatment box, an air inlet pipe is fixedly connected above the waste gas treatment box, a circulating assembly is arranged between the air inlet pipe and the air outlet pipe, and a filtering assembly is arranged in the air inlet pipe.

[0007] Preferably, the circulating assembly comprises an output pipe, an adjusting piece, a circulating pipe and a one-way valve, one end of the exhaust pipe is provided with the output pipe, the output pipe and the air inlet pipe are connected with the circulating pipe, the one-way valve is arranged on the circulating pipe, one end of the output pipe is provided with the adjusting piece.

[0008] Preferably, the adjusting piece comprises a fixed top ring, a bearing seat, an adjusting port, a rotating disc and a rotating shaft, one end of the output pipe is fixedly connected with the fixed top ring, the inner side wall of the fixed top ring is fixedly connected with the bearing seat, the rotating shaft is rotatably connected in the bearing seat, one end of the rotating shaft is fixedly connected with the rotating disc, a plurality of adjusting ports are arranged in the fixed top ring and the rotating disc.

[0009] Preferably, the outer side walls of the ends of the output pipe and the exhaust pipe close to each other are fixedly connected with external flanges.

[0010] Preferably, the filtering assembly comprises a rotating piece, a filter screen cylinder, an embedded ring and an external ring, the embedded ring is fixedly connected to the inner side wall of the air inlet pipe, the external ring is arranged above the embedded ring, the filter screen cylinder is fixedly connected to the inner side wall of the external ring, and the rotating piece is arranged on the filter screen cylinder and the external ring.

[0011] Preferably, the rotating piece comprises a heat insulation rod, a mounting disc, a threaded groove and a threaded ring, the threaded ring is fixedly connected to the side of the external ring close to the embedded ring, the threaded groove is arranged in the embedded ring corresponding to the position of the threaded ring, the mounting disc is fixedly connected to the side wall of the filter screen cylinder, and the heat insulation rod is fixedly connected to the upper side of the mounting disc.

[0012] Compared with the prior art, the utility model has the advantages that:

[0013] 1、The circulating assembly is arranged, the rotating shaft is rotated under the action of the bearing seat, the rotating shaft is rotated to drive the rotating disc to rotate, the position relationship between the rotating disc and the adjusting port in the fixed top ring is adjusted, after the VOCs waste gas treated subsequently is adsorbed is discharged to the inside of the output pipe through the exhaust pipe, part of the VOCs waste gas treated is discharged to the peripheral environment through the adjusting piece, part of the VOCs waste gas treated is injected into the air inlet pipe through the circulating pipe, the VOCs waste gas injected into the air inlet pipe subsequently is preheated, the working burden of the heating mechanism is reduced, and the treatment efficiency of the VOCs waste gas is improved.

[0014] 2, The utility model discloses set up filter assembly, hold the heat -proof pole and drive filter screen cylinder to move and insert into the inside of air inlet pipe, and the external connection ring is connected to the surface of built -in ring with it, and the thread ring is inserted into the inside of thread groove with it, and then hold the heat -proof pole and drive mounting disc rotation, and the mounting disc rotation drives filter screen cylinder rotation, and the filter screen cylinder rotation drives the thread ring rotation and is connected to the inside of thread groove, thereby can install filter screen cylinder to the inside of air inlet pipe, after subsequent VOCs waste gas enters the inside of air inlet pipe, and after filtering through filter screen cylinder, injects into the inside of waste gas treatment box again, can carry out filter impurity removal operation to VOCs waste gas, and the working load of adsorption mechanism is reduced. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is the structure schematic diagram of the utility model;

[0016] Figure 2 It is the sectional view of the utility model;

[0017] Figure 3 It is the sectional view of exhaust pipe and output pipe connection state of the utility model;

[0018] Figure 4 It is the sectional view of fixed top disc of the utility model;

[0019] Figure 5 It is the sectional view of rotary disc of the utility model;

[0020] Figure 6 It is the sectional view of air inlet pipe of the utility model;

[0021] Figure 7 It is the utility model Figure 6 It is the enlarged view of A place in the utility model.

[0022] In the drawing: 1, air inlet pipe;2, waste gas treatment box;3, adsorption mechanism;4, exhaust pipe;5, circulating assembly;51, output pipe;52, adjusting piece;521, fixed top ring;522, bearing seat;523, adjusting port;524, rotary disc;525, rotating shaft;53, circulating pipe;54, check valve;55, external flange plate;6, heating mechanism;7, filter assembly;71, rotating piece;711, heat -proof pole;712, mounting disc;713, thread groove;714, thread ring;72, filter screen cylinder;73, built -in ring;74, external connection ring. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the drawings in the embodiments of the present utility model. Obviously, the described embodiments are only part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of the present utility model.

[0024] Embodiment 1

[0025] Please refer to Figures 1-7 The utility model provides following technical scheme: a kind of adsorption equipment for VOCs waste gas treatment in petrochemical industry, including waste gas treatment box 2, the lateral wall of waste gas treatment box 2 is fixedly connected with exhaust pipe 4, heating mechanism 6 is arranged in the inside of waste gas treatment box 2, adsorption mechanism 3 is arranged in the inside of waste gas treatment box 2 and above heating mechanism 6, waste gas treatment box 2 top is fixedly connected with inlet pipe 1, circulation assembly 5 is arranged between inlet pipe 1 and exhaust pipe 4, filter assembly 7 is arranged in the inside of inlet pipe 1.

[0026] Specifically, circulation assembly 5 includes output pipe 51, adjusting part 52, circulation pipe 53 and check valve 54, one end of exhaust pipe 4 is provided with output pipe 51, circulation pipe 53 is connected between output pipe 51 and inlet pipe 1, check valve 54 is arranged on circulation pipe 53, one end of output pipe 51 is provided with adjusting part 52,

[0027] By adopting the above technical scheme, after VOCs waste gas adsorption treatment, adjusting part 52 is used to adjust the gas output of output pipe 51, check valve 54 is opened, VOCs waste gas after adsorption treatment is discharged to the inside of output pipe 51 through exhaust pipe 4, part of VOCs waste gas after treatment is discharged to the peripheral environment through adjusting part 52, part of VOCs waste gas after treatment is injected into the inside of inlet pipe 1 through circulation pipe 53, preheating operation is carried out on VOCs waste gas injected into the inside of inlet pipe 1, the working burden of heating mechanism 6 is reduced, and the treatment efficiency of VOCs waste gas is improved.

[0028] Specifically, adjusting part 52 includes fixed top ring 521, bearing seat 522, adjusting port 523, rotating disc 524 and rotating shaft 525, one end of output pipe 51 is fixedly connected with fixed top ring 521, bearing seat 522 is fixedly connected on the inner side wall of fixed top ring 521, rotating shaft 525 is rotatably connected in the inside of bearing seat 522, one end of rotating shaft 525 is fixedly connected with rotating disc 524, adjusting port 523 is formed in fixed top ring 521 and rotating disc 524,

[0029] By adopting the above technical scheme, under the action of the bearing seat 522, the rotating shaft 525 is rotated to drive the rotating disc 524 to rotate, the position relationship between the rotating disc 524 and the adjusting port 523 on the fixed top ring 521 is adjusted, and the VOCs waste gas treated by adsorption in the subsequent output pipe 51 is discharged through the adjusted adjusting port 523.

[0030] Specifically, the outer flange plate 55 is fixedly connected to the outer side wall of one end of the output pipe 51 and the exhaust pipe 4,

[0031] By adopting the above technical scheme, the two outer flange plates 55 are fixedly connected by external fixing bolts, so that the disassembly and assembly of the output pipe 51 and the exhaust pipe 4 are facilitated.

[0032] In use, under the action of the bearing seat 522, the rotating shaft 525 is rotated to drive the rotating disc 524 to rotate, the position relationship between the rotating disc 524 and the adjusting port 523 on the fixed top ring 521 is adjusted, the VOCs waste gas generated in the production process of the petrochemical industry is injected into the waste gas treatment box 2 through the air inlet pipe 1, then the VOCs waste gas in the waste gas treatment box 2 is heated by the heating mechanism 6, and the VOCs waste gas is treated by adsorption by the adsorption mechanism 3, the VOCs waste gas treated by adsorption is discharged into the output pipe 51 through the exhaust pipe 4, part of the treated VOCs waste gas is discharged into the peripheral environment through the adjusting part 52, and part of the treated VOCs waste gas is injected into the air inlet pipe 1 through the circulating pipe 53 to preheat the VOCs waste gas injected into the air inlet pipe 1 subsequently, thereby reducing the working burden of the heating mechanism 6 and improving the treatment efficiency of the VOCs waste gas.

[0033] Embodiment 2

[0034] The difference between the present embodiment and Embodiment 1 is that the filter assembly 7 comprises a rotating part 71, a filter screen cylinder 72, an embedded ring 73 and an external ring 74, the embedded ring 73 is fixedly connected to the inner side wall of the air inlet pipe 1, the external ring 74 is arranged above the embedded ring 73, the filter screen cylinder 72 is fixedly connected to the inner side wall of the external ring 74, and the rotating part 71 is arranged on the filter screen cylinder 72 and the external ring 74,

[0035] Specifically, the rotating part 71 comprises a heat insulation rod 711, a mounting disc 712, a threaded groove 713 and a threaded ring 714, the threaded ring 714 is fixedly connected to one side of the external ring 74 close to the embedded ring 73, the threaded groove 713 is arranged at a position in the embedded ring 73 corresponding to the threaded ring 714, the mounting disc 712 is fixedly connected to the side wall of the filter screen cylinder 72, and the heat insulation rod 711 is fixedly connected to the upper side of the mounting disc 712,

[0036] By adopting the above technical scheme, when the filter screen cylinder 72 needs to be cleaned, the heat insulation rod 711 is held to drive the mounting disc 712 to rotate, the mounting disc 712 drives the filter screen cylinder 72 to rotate, and the filter screen cylinder 72 drives the threaded ring 714 to rotate away from the threaded groove 713, and then the heat insulation rod 711 is held to drive the filter screen cylinder 72 to move away from the air inlet pipe 1, so that the operator can conveniently clean the filter screen cylinder 72.

[0037] In use, the heat insulation rod 711 is held to drive the filter screen cylinder 72 to move and be inserted into the air inlet pipe 1, the outer connecting ring 74 is overlapped onto the surface of the built-in ring 73, the threaded ring 714 is inserted into the threaded groove 713, the heat insulation rod 711 is held to drive the mounting disc 712 to rotate, the mounting disc 712 drives the filter screen cylinder 72 to rotate, and the filter screen cylinder 72 drives the threaded ring 714 to be screwed into the threaded groove 713, so that the filter screen cylinder 72 can be installed into the air inlet pipe 1. After the subsequent VOCs waste gas enters into the air inlet pipe 1, the VOCs waste gas is filtered by the filter screen cylinder 72 and then injected into the waste gas treatment box 2, so that the VOCs waste gas can be filtered and impurities removed, and the working burden of the adsorption mechanism 3 is reduced.

[0038] The structure and principle of the adsorption mechanism 3 composed of the mounting slot, the mounting frame, the through cavity, the mounting slot, and the activated carbon adsorption layer in the utility model have been disclosed in the VOCs waste gas oxidation adsorption treatment device with a patent application number 202220398262.8 in China, and the working principle is that the mounting slot is arranged on the side wall of the waste gas treatment box 2, the mounting frame is inserted into the mounting slot, the through cavity is arranged through the mounting frame, the mounting slots are equidistantly arranged on the upper surface of the mounting frame and are communicated with the through cavity, the activated carbon adsorption layers are arranged in the mounting slots, in use, the activated carbon adsorption layers are inserted into the through cavity through the mounting slots, and then the mounting frame is moved and inserted into the waste gas treatment box 2 through the mounting slot, so that the activated carbon adsorption layers can adsorb and treat the injected VOCs waste gas after the VOCs waste gas is injected into the waste gas treatment box 2.

[0039] The structure and principle of the heating mechanism 6 composed of the bottom groove, the resistance heating wire, and the heat-conducting aluminum plate in the utility model have been disclosed in the VOCs waste gas oxidation adsorption treatment device with a patent application number 202220398262.8 in China, and the working principle is that the bottom groove is arranged on the bottom wall of the waste gas treatment box 2, the resistance heating wire is arranged in the bottom groove and has a meandering shape, and the heat-conducting aluminum plate is fixedly installed at the port of the bottom groove. When the resistance heating wire is heated, the heat-conducting aluminum plate can guide the heat generated by the resistance heating wire into the waste gas treatment box 2, so that the temperature in the waste gas treatment box 2 is increased, and the waste gas treatment efficiency is improved.

[0040] The working principle and use process of the utility model: the utility model holds the heat insulation rod 711 and moves the filter screen cylinder 72 to insert into the inside of the air inlet pipe 1, the external connection ring 74 is connected to the surface of the built-in ring 73, and the threaded ring 714 is inserted into the threaded groove 713, then holds the heat insulation rod 711 and drives the mounting disc 712 to rotate, the mounting disc 712 drives the filter screen cylinder 72 to rotate, the filter screen cylinder 72 drives the threaded ring 714 to rotate and is connected to the threaded groove 713, then rotates the rotating shaft 525 under the action of the bearing seat 522, the rotating shaft 525 drives the rotary disc 524 to rotate, adjusts the position relation of the rotary disc 524 and the adjusting port 523 on the fixed top ring 521, then injects the VOCs waste gas generated in the petroleum chemical industry production process into the inside of the air inlet pipe 1, filters through the filter screen cylinder 72 and then injects into the inside of the waste gas treatment box 2, can carry out the filtering and impurity removal operation to the VOCs waste gas, reduces the work burden of the adsorption mechanism 3, then utilizes the heating mechanism 6 to carry out the heating operation to the VOCs waste gas in the inside of the waste gas treatment box 2, utilizes the adsorption mechanism 3 to carry out the adsorption treatment operation to the VOCs waste gas, the VOCs waste gas after adsorption treatment is discharged through the exhaust pipe 4 and is injected into the inside of the output pipe 51, part of the VOCs waste gas after treatment is discharged through the adjusting part 52 and is injected into the peripheral environment, part of the VOCs waste gas after treatment is injected through the circulating pipe 53 and is injected into the inside of the air inlet pipe 1, carries out the preheating operation to the VOCs waste gas injected into the inside of the air inlet pipe 1 subsequently, reduces the work burden of the heating mechanism 6, improves the treatment efficiency of the VOCs waste gas.

[0041] Although the embodiments of the utility model have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to these embodiments without departing from the principles and spirits of the utility model, the scope of the utility model is defined by the appended claims and their equivalents.

Claims

1. An adsorption device for treating VOCs waste gas in the petrochemical industry, comprising a waste gas treatment box (2), wherein an exhaust pipe (4) is fixedly connected to the side wall of the waste gas treatment box (2), a heating mechanism (6) is provided inside the waste gas treatment box (2), an adsorption mechanism (3) is provided inside the waste gas treatment box (2) and above the heating mechanism (6), and an air inlet pipe (1) is fixedly connected to the top of the waste gas treatment box (2), characterized in that: A circulation assembly (5) is provided between the intake pipe (1) and the exhaust pipe (4), and a filter assembly (7) is provided inside the intake pipe (1).

2. The adsorption equipment for VOCs waste gas treatment in the petrochemical industry according to claim 1, characterized in that: The circulation assembly (5) includes an output pipe (51), an adjusting component (52), a circulation pipe (53), and a one-way valve (54). One end of the exhaust pipe (4) is provided with an output pipe (51), and a circulation pipe (53) is connected between the output pipe (51) and the intake pipe (1). A one-way valve (54) is provided on the circulation pipe (53), and an adjusting component (52) is provided on one end of the output pipe (51).

3. The adsorption equipment for VOCs waste gas treatment in the petrochemical industry according to claim 2, characterized in that: The adjusting component (52) includes a fixed top ring (521), a bearing seat (522), an adjusting port (523), a rotating disk (524), and a rotating shaft (525). One end of the output pipe (51) is fixedly connected to the fixed top ring (521). The bearing seat (522) is fixedly connected to the inner side wall of the fixed top ring (521). The rotating shaft (525) is rotatably connected inside the bearing seat (522). One end of the rotating shaft (525) is fixedly connected to the rotating disk (524). Several adjusting ports (523) are provided on both the fixed top ring (521) and the rotating disk (524).

4. The adsorption equipment for VOCs waste gas treatment in the petrochemical industry according to claim 2, characterized in that: External flanges (55) are fixedly connected to the outer walls of the ends of the output pipe (51) and the exhaust pipe (4) that are close to each other.

5. The adsorption equipment for VOCs waste gas treatment in the petrochemical industry according to claim 1, characterized in that: The filter assembly (7) includes a rotating component (71), a filter cylinder (72), an inner ring (73), and an outer ring (74). The inner ring (73) is fixedly connected to the inner wall of the air inlet pipe (1), and the outer ring (74) is provided above the inner ring (73). The filter cylinder (72) is fixedly connected to the inner wall of the outer ring (74), and the rotating component (71) is provided on the filter cylinder (72) and the outer ring (74).

6. The adsorption equipment for VOCs waste gas treatment in the petrochemical industry according to claim 5, characterized in that: The rotating component (71) includes a heat insulation rod (711), a mounting plate (712), a threaded groove (713), and a threaded ring (714). The outer ring (74) is fixedly connected to the threaded ring (714) on the side near the inner ring (73). The inner ring (73) has a threaded groove (713) inside and at the position corresponding to the threaded ring (714). The mounting plate (712) is fixedly connected to the side wall of the filter cylinder (72), and the heat insulation rod (711) is fixedly connected above the mounting plate (712).

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