CN212790375U

CN212790375U - A adsorption tank for waste gas recovery

Info

Publication number: CN212790375U
Application number: CN202021233167.XU
Authority: CN
Inventors: 王毅; 李水林
Original assignee: SHANGHAI JIAYUAN ENVIRONMENTAL PROTECTION TECHNOLOGY CO LTD
Current assignee: SHANGHAI JIAYUAN ENVIRONMENTAL PROTECTION TECHNOLOGY CO LTD
Priority date: 2020-06-29
Filing date: 2020-06-29
Publication date: 2021-03-26
Anticipated expiration: 2030-06-29

Abstract

The utility model provides an adsorption tank for waste gas recovery, which comprises a tank body, wherein the inner cavity of the tank body is provided with a diaphragm plate which divides the tank body into an upper tank body and a lower tank body; the upper tank body is provided with an air outlet, and the lower tank body is provided with a waste gas inlet and a steam desorption gas outlet; the device is characterized in that an elastic adsorption cylinder is arranged in the tank body, the lower end of the elastic adsorption cylinder is fixed at the bottom of the lower tank body, the top end of the elastic adsorption cylinder extends out of a through hole of the transverse partition plate, a sealing cover covering the through hole is arranged, and the sealing cover is connected with an adsorption cylinder telescopic driving device; elastic adsorption section of thick bamboo upper portion still is equipped with the steam introducing port with jar external intercommunication, and this utility model can effectively increase the utilization ratio of desorption steam, avoids steam to get into next equipment from the air outlet, influences the production flow, simultaneously, can avoid steam to produce ponding in the in-process of desorption again and gather in the last jar body side of cross slab, reduces desorption efficiency.

Description

A adsorption tank for waste gas recovery

Technical Field

The invention relates to an adsorption tank, in particular to an adsorption tank for waste gas recovery.

Background

With the rapid development of economy, various volatile organic compounds can volatilize into the atmospheric environment in the processes of production, storage, transportation, use and the like, and cause serious damage to the ecological environment. The organic waste gas treatment mode can select different waste gas treatment processes to treat according to working conditions such as waste gas type, concentration, temperature, humidity and the like. For single component and component with recycling value, such as single-use component esters in packaging and printing industry, benzene in chemical industry, etc., an adsorption recovery process is often selected for purification and recovery treatment.

The core equipment of the adsorption recovery process is the adsorption tank for recovering the waste gas, the adsorption tank for recovering the traditional waste gas usually comprises a filter bed arranged along the transverse direction of a tank body, the organic waste gas is directly discharged from an air outlet after passing through the filter bed, and the adsorption recovery process has large occupied area and often has the defects of uneven contact between the organic waste gas and the adsorption layer and the like. In order to overcome the problems, some adsorption tanks with transverse partition plates in the tank body are provided in the market, a plurality of adsorption cylinders are uniformly distributed in the lower tank body, and organic waste gas can be fully adsorbed in the lower tank body and the adsorption cylinders and then discharged through the upper tank body, for example, the carbon fiber adsorption tank disclosed in the chinese patent with the publication number of CN206103644U adopts the above design.

The adsorption cylinder is desorbed by high-temperature steam, so that the regeneration and the utilization of an adsorption layer are realized, and the process is mature. If only the related steam inlet and outlet are directly added in the existing adsorption tank, in the process of desorbing the adsorption cylinder, steam can enter next equipment from the air outlet through the upper tank body due to the fact that the upper tank body is communicated with the lower tank body, the production process flow is affected, and in addition, part of steam is accumulated in the upper tank body and cannot be in contact with the adsorption cylinder, and the waste of the steam is caused; meanwhile, condensed water can be remained on the diaphragm plate, so that the drying time is prolonged, and the desorption efficiency is reduced.

Disclosure of Invention

The invention aims to solve the technical problem of providing an adsorption tank with a sealing cover for waste gas recovery, wherein the upper tank body and the lower tank body are separated by the sealing cover during steam desorption, so that the defects in the prior art are overcome.

In order to achieve the aim, the invention provides an adsorption tank for waste gas recovery, which comprises a tank body, wherein a transverse clapboard is arranged in an inner cavity of the tank body and divides the tank body into an upper tank body and a lower tank body; the upper tank body is provided with an air outlet, and the lower tank body is provided with a waste gas inlet and a steam desorption gas outlet; the device is characterized in that an elastic adsorption cylinder is arranged in the tank body, the lower end of the elastic adsorption cylinder is fixed at the bottom of the lower tank body, the top end of the elastic adsorption cylinder extends out of a through hole of the transverse partition plate, a sealing cover covering the through hole is arranged, and the sealing cover is connected with an adsorption cylinder telescopic driving device; the upper part of the elastic adsorption cylinder is also provided with a steam inlet communicated with the outside of the tank body.

Through the sealed lid of the flexible drive arrangement drive of an absorption section of thick bamboo to the through hole closed with open, and then when realizing different operating modes, go up isolated and the intercommunication between the jar body and the lower jar body. In the process of steam desorption, the upper tank body is separated from the lower tank body, and steam is only desorbed in the lower tank body to the elastic adsorption cylinder, so that the steam is saved.

Preferably, the number of the elastic adsorption cylinders is at least two, and the elastic adsorption cylinders are uniformly distributed in the tank body.

A plurality of elasticity of equipartition adsorb a section of thick bamboo for waste gas under the jar body purified more abundant, also can make the atmospheric pressure distribution of the jar body down comparatively even simultaneously.

Preferably, the adsorption cylinder telescopic driving device is a cylinder fixedly arranged on the tank body, and a piston rod of the cylinder is connected with the elastic adsorption cylinder.

The device simple structure has realized the extension and the compression to an elastic adsorption section of thick bamboo, has also realized the cooperation between sealed lid and the through hole.

Preferably, a connecting member is arranged between the piston rod of the cylinder and the sealing cover, and the connecting member comprises a rigid part directly connected with the piston rod of the cylinder and a buffer part for connecting the rigid part and the sealing cover.

After the buffering part enables the cylinder to act, when the elastic adsorption cylinder is stretched and compressed, the stress of the elastic adsorption cylinder is more uniform.

Preferably, the buffer part comprises a guide rod penetrating through the rigid part and a spring sleeved on the guide rod; one end of the guide rod is fixedly connected to the sealing cover, the other end of the guide rod is provided with a limiting block, and two ends of the spring are fixedly connected with the rigid portion and the sealing cover respectively.

The structure is simple, and the buffering effect of the buffering part on the elastic adsorption cylinder can be realized when the cylinder acts.

Preferably, the elastic adsorption cylinder comprises an inner clamping layer, an outer clamping layer surrounding the inner clamping layer and an adsorption layer positioned between the inner clamping layer and the outer clamping layer. This elasticity adsorbs a section of thick bamboo, the adsorbed layer centre gripping is firm, has realized absorbent function simultaneously.

Preferably, the steam inlet extends directly into the space surrounded by the absorbent layer.

The steam can directly go deep into the space surrounded by the adsorption layer, so that the desorption is carried out from inside to outside along the radial direction, and the desorption rate is increased.

Preferably, the adsorption layer of the elastic adsorption cylinder is a carbon fiber layer, and the inner clamping layer and the outer clamping layer are both stainless steel nets.

Preferably, the upper end cover of the tank body is also provided with an access hole.

The design of the access hole is convenient for regular maintenance and overhaul of the interior of the adsorption tank.

As described above, the adsorption tank for waste gas recovery according to the present invention has the following advantages: the adsorption cylinder telescopic driving device can drive a sealing cover arranged at the top end of the elastic adsorption cylinder to cover or open a transverse partition plate in the cylinder body, so that the communication and the partition of the upper cylinder body and the lower cylinder body can be realized according to actual working conditions, particularly, the upper cylinder body is separated from the lower cylinder body in the steam desorption process, steam is desorbed from the elastic adsorption cylinder only in the lower cylinder body, the steam is saved, the steam is prevented from entering next equipment from an air outlet, meanwhile, the steam can be prevented from being condensed into accumulated water in the desorption process and accumulating on the upper cylinder body side of the transverse partition plate, the drying time is prolonged, and the working efficiency of the adsorption cylinder is influenced; the steam introducing port is communicated with the elastic adsorption cylinder and extends into the space surrounded by the adsorption layer, so that the steam is diffused from inside to outside in the desorption process through the adsorption layer, and the desorption rate of the steam is increased.

Drawings

FIG. 1 is a schematic structural view of an adsorption tank for waste gas recovery according to the present embodiment;

FIG. 2 is an enlarged view of area A of FIG. 1;

FIG. 3 is a schematic cross-sectional view of the cartridge of FIG. 3;

FIG. 4 is a schematic view of an adsorption tank for waste gas recovery in the present embodiment in an adsorption process;

fig. 5 is a schematic diagram of an adsorption tank for waste gas recovery in the present embodiment in a desorption process;

fig. 6 is a schematic diagram of an adsorption tank for waste gas recovery in a drying process in the present embodiment.

Description of reference numerals:

100. a tank body; 110. a diaphragm plate; 111. a through hole; 120. feeding the tank body; 130. a tank body is arranged; 121. an air outlet; 131. An exhaust gas inlet; 132. a steam desorption gas outlet; 133. a drying air inlet; 134. a vapor condensate drain; 135. an access hole; 136. a drying air outlet; 200. an elastic adsorption cylinder; 210. a steam inlet; 201. a sealing cover; 300. a cylinder; 311. A rigid portion; 312. a buffer section; 313. a guide bar; 314. a limiting block; 315. a spring; 411. an inner clamping layer; 412. an adsorption layer; 413. and an outer clamping layer.

Detailed Description

The following description of the embodiments of the present invention is provided for illustrative purposes, and other advantages and effects of the present invention will become apparent to those skilled in the art from the present disclosure.

It should be understood that the structures, ratios, sizes, and the like shown in the drawings and described in the specification are only used for matching with the disclosure of the specification, so as to be understood and read by those skilled in the art, and are not used to limit the conditions under which the present invention can be implemented, so that the present invention has no technical significance, and any structural modification, ratio relationship change, or size adjustment should still fall within the scope of the present invention without affecting the efficacy and the achievable purpose of the present invention. In addition, the terms such as "upper", "lower", "left", "right" and "middle" used in the present specification are for clarity of description, and are not intended to limit the scope of the present invention, and changes or modifications of the relative relationship may be made without substantial technical changes.

As shown in fig. 1, the canister for recycling waste gas of the present embodiment includes a canister body 100, and a diaphragm 110 is disposed in the canister body 100 to divide the canister body 100 into an upper canister body 120 and a lower canister body 130. Wherein, the bottom of the lower tank body 130 is fixedly connected with a plurality of elastic adsorption cylinders 200. The elastic adsorption cylinder 200 is connected with the adsorption cylinder telescopic driving device of the elastic adsorption cylinder 200 at the end far away from the bottom of the lower tank body 130, and the adsorption cylinder telescopic driving device is used for vertically elongating the elastic adsorption cylinder 200. Meanwhile, a through hole 111 for allowing the suction tube to pass therethrough is formed in the diaphragm of the can body 100, and a sealing cap 201 for sealing the through hole 111 is provided at the top end of the elastic suction tube 200. The lifting device is a cylinder 300 fixed on the top of the upper tank 120, and a piston rod of the cylinder 300 is connected with the upper end surface of the sealing cover 201 to drive the elastic adsorption cylinder 200 to deform along the length direction of the adsorption cylinder. Of course, the lifting device is not limited to the cylinder 300, and may be any device such as a hydraulic cylinder that can drive the elastic adsorption cylinder 200 to deform.

As shown in fig. 1 and 2, a connection member is provided between the piston rod of the cylinder 300 and the sealing cover 201, and the connection member includes a rigid portion 311 directly connected to the piston rod of the cylinder 300 and a buffer portion 312 for connecting the rigid portion and the sealing cover. The number of the buffer parts is the same as that of the sealing covers, and the buffer parts are vertically arranged on the surface of the sealing covers, namely, arranged along the axial direction of the elastic adsorption cylinder 200, and each buffer part comprises a guide rod penetrating through the rigid part 311 and a spring 315 sleeved outside the guide rod 313. One end of the guide rod 313 is fixedly connected to the sealing cover 201, and the other end is provided with a limit block 314. The rigid part 311 may be made of stainless steel and disposed along a radial direction of the can body 100, and ends of the rigid part 311 are connected to the respective guide rods 313 while the rigid part 311 is connected to a piston rod of the cylinder 300. The limiting block 314 may be a bolt, and is screwed to one end of the guide rod 313 close to the sealing cover 201. When the cylinder shaft moves downwards, the cylinder shaft still moves downwards after the sealing cover covers the through hole, at the moment, the spring is compressed to further press the sealing cover downwards, and the tightness between the sealing cover 201 and the through hole is increased; when the cylinder moves axially, the spring is stretched, a gap is generated between the through holes between the sealing covers, and the limiting block of the guide rod is contacted with the rigid part, so that the sealing covers are pulled away from the through holes. The cooperation of rigidity portion and buffer increases the leakproofness between sealed lid and the through-hole, simultaneously, also can make the elastic adsorption cylinder have the space of buffering in the process of being drawn and rise and compress.

Meanwhile, as shown in fig. 3, the elastic adsorption cylinder 200 includes an inner clamping layer 411, an outer clamping layer 413 surrounding the inner clamping layer 411, and an adsorption layer 412 between the inner clamping layer and the outer clamping layer. Wherein, the adsorbed layer 412 in elastic adsorption cylinder 200 can be carbon fiber material, and interior centre gripping layer 411 is stainless steel wire net with outer centre gripping layer 413, and carbon fiber material forms the carbon fiber layer of certain thickness around inner circle stainless steel wire net winding promptly, and the carbon fiber outer lane wraps up one deck stainless steel wire net equally, and the stainless steel wire net of interior outer lane plays carbon fiber layer effect of stabilizing.

The sidewall of the lower tank 130 near the bottom is provided with a waste gas inlet 131 communicated with the cavity of the lower tank 130, and the sidewall of the upper tank 120 near the top is provided with an air outlet 121 communicated with the cavity of the upper tank 120. The elastic adsorption cylinder 200 is provided with a steam inlet 210 at one end near the top end, and the bottom of the adsorption tank is provided with a steam desorption gas outlet 132 communicated with the cavity. The lower middle part of the lower tank 130 is provided with a drying air inlet 133 communicated with the inner cavity thereof, the bottom end of the lower tank is provided with a steam condensate discharging port 134, and the upper side of the lower tank is also provided with a drying air outlet 136.

As shown in fig. 4 to 6, wherein the directions of arrows in the drawings generally indicate the flow directions of the gas or vapor in the respective processes.

In the process of needing to adsorb the waste gas, the steam inlet 210, the steam desorption gas outlet 132, the steam condensate discharging port 134, the drying air inlet 133 and the drying air outlet 136 are closed, the air cylinder 300 is started, the piston rod of the air cylinder 300 drives one end of the elastic adsorption cylinder 200 to move towards the top of the upper tank body 120, the through hole 111 is opened, and the elastic adsorption cylinder 200 is stretched. At this time, the exhaust gas from the exhaust gas inlet enters the lower tank 130, and due to the existence of the diaphragm, the exhaust gas can be sufficiently adsorbed in the elastic adsorption cylinder 200 in the lower tank 130, and then flows out from the air outlet 121 through the upper tank. In particular, the outer diameter of the elastic suction tube 200 may be set to be slightly smaller than the diameter of the through hole 111 of the diaphragm, so as to facilitate the vertical movement of the elastic suction tube 200. Particularly, the sealing ring may be disposed on the inner side of the through hole, so as to prevent the exhaust gas from entering the upper tank 120 through the gap between the elastic adsorption cylinder 200 and the through hole 111 without being adsorbed, and then being discharged from the upper tank 120, thereby facilitating the contact between the exhaust gas and the carbon fiber layer.

In the desorption process, the waste gas inlet 131, the drying air outlet 136, the air outlet 121 and the drying air inlet 133 are closed, the air cylinder 300 acts, the piston rod of the air cylinder 300 drives the sealing cover 201 to close the through hole 111, the elastic adsorption cylinder 200 is compressed, and the upper tank body 120 is isolated from the lower tank body 130. Steam is introduced into the steam inlet 210 to desorb the elastic adsorption cylinder 200 in the lower tank 130 and is discharged through the steam desorption gas outlet 132, and condensed water is condensed on the inner wall of the tank and is discharged through the steam condensate discharge port 134. The steam inlet 210 extends directly into the inner holding layer 411 through a pipe in the adsorption tank and is close to the top end of the elastic adsorption cylinder 200. When letting in steam, steam can be diffused from inside to outside at an elastic adsorption cylinder 200, and finally go out by carbon fiber layer outer layer stainless steel net, can effectual improvement steam and the even contact and the desorption of carbon fiber.

In the drying process, the steam inlet 210, the steam desorption gas outlet 132, the waste gas inlet 131, the steam condensate discharging port 134 and the air outlet 121 are closed, and the through hole 111 is still closed. The drying air enters from the drying air inlet 133, fills the lower tank 130 from the top down and is discharged from the drying air outlet 136, so that the whole inner cavity of the lower tank 130 is dried. The upper end of the adsorption tank is provided with an access hole 135 communicated with the inner cavity of the tank body, so that the equipment is convenient to overhaul and regularly maintain. This an adsorption tank for waste gas recovery has that the pressure loss is low, the gas distribution is even, adsorbs desorption efficiency height, simple structure, and area is little, easy maintenance is maintained.

The foregoing embodiments are merely illustrative of the principles and utilities of the present invention and are not intended to limit the invention. Any person skilled in the art can modify or change the above-mentioned embodiments without departing from the spirit and scope of the present invention. Accordingly, it is intended that all equivalent modifications or changes which can be made by those skilled in the art without departing from the spirit and technical spirit of the present invention be covered by the claims of the present invention.

Claims

1. An adsorption tank for waste gas recovery comprises a tank body (100), wherein a transverse clapboard (110) is arranged in an inner cavity of the tank body (100), and the tank body (100) is divided into an upper tank body (120) and a lower tank body (130) by the transverse clapboard (110); wherein the upper tank body (120) is provided with an air outlet (121), and the lower tank body (130) is provided with a waste gas inlet (131) and a steam desorption gas outlet (132); the novel tank is characterized in that an elastic adsorption cylinder (200) is arranged in the tank body (100), the lower end of the elastic adsorption cylinder is fixed at the bottom of the lower tank body (130), the top end of the elastic adsorption cylinder extends out of a through hole (111) of a transverse partition plate and is connected with a sealing cover (201) covering the through hole (111), and the sealing cover (201) is connected with an adsorption cylinder telescopic driving device; the upper part of the elastic adsorption cylinder (200) is also provided with a steam inlet (210) communicated with the outside of the tank body (100).

2. The canister for recycling exhaust gas according to claim 1, wherein there are at least two elastic adsorption cylinders (200) and they are uniformly distributed in the canister body (100).

3. The canister for recycling exhaust gas according to claim 1, wherein the canister expansion driving device is a cylinder (300) fixed on the canister body (100), and a piston rod of the cylinder (300) is connected with the sealing cover (201).

4. The canister for exhaust gas recovery according to claim 3, wherein a connection member is provided between the piston rod of the cylinder (300) and the sealing cover (201), the connection member comprising a buffer portion (312) directly connected to the sealing cover (201) and a rigid portion (311) for connecting the piston rod of the cylinder (300) and the buffer portion (312).

5. The canister for exhaust gas recovery according to claim 4, wherein the buffer part (312) includes a guide rod (313) penetrating the rigid part (311) and a spring (315) fitted over the guide rod; one end of the guide rod (313) is fixedly connected to the sealing cover (201), the other end of the guide rod is provided with a limiting block (314), and two ends of the spring (315) are fixedly connected with the rigid portion (311) and the sealing cover (201) respectively.

6. An adsorption tank for exhaust gas recovery according to any one of claims 1 to 5, wherein the elastic adsorption cylinder (200) comprises an inner holding layer (411), an outer holding layer (413) surrounding the inner holding layer (411), and an adsorption layer (412) between the inner holding layer and the outer holding layer.

7. The canister for flue gas recovery according to claim 6, wherein the steam introduction port (210) directly extends into a space surrounded by the adsorption layer.

8. The canister for exhaust gas recovery of claim 7, wherein the lower canister body (130) is further provided with a drying air inlet (133) and a drying air outlet (136).

9. The canister for recycling exhaust gas according to claim 8, wherein the adsorption layer of the elastic adsorption cylinder (200) is a carbon fiber layer, and the inner clamping layer and the outer clamping layer are stainless steel meshes.

10. The canister for recycling exhaust gas according to claim 9, wherein the upper end cover of the canister body (100) is further opened with an access opening (135).