A resin adsorption and desorption condensation recovery device convenient to maintain

Abstract

This utility model relates to the technical field of waste gas treatment and resource recovery equipment, specifically disclosing a resin adsorption-desorption-condensation recovery device that is easy to maintain. It includes a recovery tank, which provides the main body housing space for the device. The bottom of the recovery tank is supported by a support base, and the top of the recovery tank is covered with a protective cover. The recovery tank and the protective cover together form a closed tank body. This easy-to-maintain resin adsorption-desorption-condensation recovery device uses an adsorption-desorption inner cylinder that passes through a limiting bracket, with its bottom end only abutting against the inner wall of the recovery tank. It adopts a disassembled and assembled connection, and the protective cover can be directly removed from the top of the recovery tank. When it is necessary to replace the adsorption resin layer or repair the internal components of the adsorption-desorption inner cylinder, simply open the protective cover to remove the adsorption-desorption inner cylinder from the recovery tank without disassembling the entire device. This effectively simplifies the operation process, shortens downtime for maintenance, and improves the overall ease of maintenance of the device.

Description

Technical Field

[0001] This utility model relates to the technical field of waste gas treatment and resource recovery equipment, specifically a resin adsorption-desorption-condensation recovery device that is easy to maintain. Background Technology

[0002] In industrial production processes, many industries such as chemical, pharmaceutical, and printing generate large amounts of volatile organic compounds (VOCs). If these VOCs are emitted directly without effective treatment, they will not only cause serious air pollution but also lead to resource waste. Resin adsorption-desorption-condensation recovery devices have emerged to address this issue. Their working principle involves utilizing the porous nature of resin to adsorb organic components from the VOCs. Once adsorption is saturated, the organic matter is desorbed from the resin using thermal desorption or steam desorption methods. Subsequently, it is liquefied through a condensation system, thus achieving recycling.

[0003] In existing devices, the adsorption column and desorption components are often fixedly connected as a whole during long-term use. When the resin needs to be replaced or internal components malfunction, the entire device needs to be disassembled, which is cumbersome. Moreover, after long-term operation, the condensate may contain impurities, which can easily lead to condensate residue and impurity deposition, causing pipe blockage. Utility Model Content

[0004] The purpose of this invention is to provide a resin adsorption-desorption condensation recovery device that is easy to maintain, in order to solve the problem mentioned in the background art that the adsorption column and desorption component are mostly integrated and fixedly connected. When the resin needs to be replaced or the internal components malfunction, the whole device needs to be disassembled, which is cumbersome. Moreover, after the device has been running for a long time, due to the possible presence of impurities in the condensate, condensate residue and impurity deposition are likely to occur, causing pipe blockage.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a resin adsorption-desorption-condensation and recovery device that is easy to maintain, including a recovery tank, which provides the main body housing space for the device. The bottom of the recovery tank is supported by a support base, and the top of the recovery tank is covered with a protective cover. The recovery tank and the protective cover together constitute a closed tank body.

[0006] The inner wall of the recovery tank is equipped with a limiting bracket, and a spiral guide plate is fixedly installed at the bottom of the limiting bracket. The spiral guide plate surrounds the outer wall of the adsorption-desorption inner cylinder, and the adsorption-desorption inner cylinder passes through the limiting bracket. Waste gas inlet pipes are symmetrically arranged on both sides of the recovery tank.

[0007] The bottom of the adsorption-desorption inner cylinder abuts against the inner wall of the recovery tank, and an adsorption resin layer is sleeved inside the adsorption-desorption inner cylinder. The adsorption resin layer is penetrated by a central tube, and a condensate flow pipe is inserted inside the central tube. The top of the condensate flow pipe passes through a protective cover and extends out. There is a one-way drain pipe below the adsorption resin layer, and the one-way drain pipe is located at the bottom of the recovery tank.

[0008] By adopting the above technical solution, the adsorption-desorption inner cylinder is limited by the limiting bracket, and the adsorption-desorption inner cylinder and the recovery tank can be installed separately. With the help of the protective cover that can cover the recovery tank, the adsorption-desorption inner cylinder and the internal adsorption resin layer and other components can be easily disassembled and removed.

[0009] Preferably, a sealing element is provided at the connection between the bottom of the inner wall of the recovery tank and the adsorption-desorption inner cylinder, and holes are provided at equal intervals on the side wall of the adsorption-desorption inner cylinder.

[0010] By adopting the above technical solution, the seal at the connection between the recovery tank and the adsorption-desorption inner cylinder ensures the airtightness of the device and prevents waste gas leakage.

[0011] Preferably, the upper end of the protective cover is provided with a discharge pipe, and the lower part of the discharge pipe is aligned with the adsorption-desorption inner cylinder, and two exhaust holes are symmetrically arranged at the upper end of the adsorption-desorption inner cylinder.

[0012] By adopting the above technical solution, the discharge pipe on the protective cover is aligned with the exhaust hole at the top of the adsorption-desorption inner cylinder, which facilitates the smooth discharge of the treated gas.

[0013] Preferably, the height of the support base legs is greater than the length of the one-way drain pipe, and a one-way valve is installed inside the one-way drain pipe.

[0014] By adopting the above technical solution, the one-way valve ensures that the condensate can only be discharged in one direction, avoiding residue and pollution caused by liquid backflow.

[0015] Preferably, the discharge pipe is located above the support base and connects to the inside of the recycling tank.

[0016] With the above technical solution, the discharge pipe is located above the support base and connected to the inside of the recovery tank, ensuring a smooth discharge path for the treated gas and facilitating the inspection and maintenance of the discharge pipe.

[0017] Preferably, the adsorption-desorption inner cylinder, the adsorption resin layer, and the central tube are arranged in a concentric circle, and the adsorption resin layer has a ring structure.

[0018] By adopting the above technical solution, the adsorption resin layer has a ring structure, which allows the waste gas to come into more full contact with the adsorption resin, and the condensate can also act more evenly on the adsorption resin layer, thereby improving the efficiency of adsorption-desorption and condensation recovery.

[0019] Preferably, the central tube has a two-layer metal tube structure, and the hollow area inside the central tube is used to place the bent condensate flow tube.

[0020] By adopting the above technical solution, the bent condensate flow tube increases the contact area with the adsorption resin layer, enhances the condensation effect, and also facilitates separate maintenance of the condensate flow tube.

[0021] Compared with the prior art, the beneficial effects of this utility model are: the easy-to-maintain resin adsorption-desorption condensation and recovery device:

[0022] 1. The adsorption-desorption inner cylinder passes through the limiting bracket and its bottom end only abuts against the inner wall of the recovery tank. It adopts a disassembled and assembled connection. At the same time, the protective cover can be directly removed from the top of the recovery tank. When it is necessary to replace the adsorption resin layer or repair the internal components of the adsorption-desorption inner cylinder, simply open the protective cover to remove the adsorption-desorption inner cylinder from the recovery tank. There is no need to disassemble the entire device, which effectively simplifies the operation process, shortens the downtime for maintenance, and improves the convenience of maintenance.

[0023] 2. The one-way drain pipe in the device is located at the bottom of the recovery tank, and the one-way valve inside the pipe can ensure that the condensate is discharged in one direction, reducing liquid residue. At the same time, the central pipe adopts a two-layer metal pipe structure, and the hollow area inside is specially used to place the bent condensate flow pipe, making the condensate flow path more regular and reducing the probability of impurity deposition. In addition, the equidistant holes on the side wall of the adsorption-desorption inner cylinder can reduce fluid resistance, further reduce the risk of blockage, and ensure the long-term stable operation of the device.

[0024] 3. Furthermore, as the spiral guide plate surrounds the outer wall of the adsorption-desorption inner cylinder, it can guide the waste gas to flow evenly along the spiral path to the adsorption resin layer, increasing the contact area and time between the waste gas and the adsorption resin, thereby improving the adsorption efficiency. Since the adsorption-desorption inner cylinder, the adsorption resin layer, and the central tube are arranged in a concentric circle, combined with the precise layout of the condensate flow pipe, the condensation process is more efficient, ensuring that the adsorbed saturated substances can be fully condensed and discharged through the one-way drain pipe, realizing the efficient synergy between resource recovery and waste gas treatment, and enhancing the overall practicality of the device. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the overall external three-dimensional structure of this utility model;

[0026] Figure 2 This is a schematic diagram of the overall internal side section of the present invention.

[0027] Figure 3 This is a schematic diagram of the overall disassembled three-dimensional structure of this utility model;

[0028] Figure 4 This is a top-section three-dimensional structural diagram of the overall internal structure of this utility model;

[0029] Figure 5 This is a three-dimensional structural diagram of the adsorption-desorption inner cylinder and spiral guide plate of this utility model.

[0030] Figure 6 This is a schematic diagram of the three-dimensional structure of the adsorption-desorption inner cylinder and the central tube of this utility model.

[0031] In the diagram: 1. Recovery tank; 2. Protective cover; 3. Support base; 4. Limiting bracket; 5. Discharge pipe; 6. Adsorption-desorption inner cylinder; 7. Spiral guide plate; 8. One-way drain pipe; 9. Waste gas inlet pipe; 10. Adsorption resin layer; 11. Central pipe; 12. Condensate flow pipe. Detailed Implementation

[0032] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0033] Please see Figures 1-6 This utility model provides a technical solution: a resin adsorption-desorption condensation and recovery device that is easy to maintain, including a recovery tank 1, a protective cover 2, a support base 3, a limiting bracket 4, a discharge pipe 5, an adsorption-desorption inner cylinder 6, a spiral guide plate 7, a one-way drain pipe 8, a waste gas inlet pipe 9, an adsorption resin layer 10, a central pipe 11, and a condensate flow pipe 12.

[0034] Among them, the recycling tank 1 provides the main housing space for the device. The bottom of the recycling tank 1 is supported by the support base 3, and the top of the recycling tank 1 is covered by a protective cover 2. The recycling tank 1 and the protective cover 2 together form a closed tank.

[0035] The inner wall of the recovery tank 1 is provided with a limiting bracket 4, and a spiral guide plate 7 is fixedly installed at the bottom of the limiting bracket 4. The upper end of the protective cover 2 is provided with a discharge pipe 5, and the lower part of the discharge pipe 5 is aligned with the adsorption-desorption inner cylinder 6. The upper end of the adsorption-desorption inner cylinder 6 is symmetrically provided with two exhaust holes. The discharge pipe 5 is above the support base 3. The height of the support base 3 is greater than the pipe length of the one-way drain pipe 8. The one-way drain pipe 8 is provided with a one-way valve. The discharge pipe 5 is connected to the inside of the recovery tank 1. The spiral guide plate 7 is surrounded around the outer wall of the adsorption-desorption inner cylinder 6. The adsorption-desorption inner cylinder 6 is set through the limiting bracket 4. The two sides of the recovery tank 1 are symmetrically provided with exhaust gas inlet pipes 9. The bottom end of the inner wall of the recovery tank 1 is provided with a sealing element at the connection between it and the adsorption-desorption inner cylinder 6. The side wall of the adsorption-desorption inner cylinder 6 is provided with holes at equal intervals.

[0036] Referring to the attached diagrams in the instruction manual Figures 1-6 As shown, place the support base 3 on a flat mounting surface, ensuring stable support. Securely connect the bottom of the recycling tank 1 to the support base 3, keeping the recycling tank 1 vertical. Figure 1 As shown, a limiting bracket 4 is installed at a designated position on the inner wall of the recycling tank 1, and a spiral guide plate 7 is fixedly installed at the bottom of the limiting bracket 4.

[0037] The adsorption-desorption inner cylinder 6 passes through the limiting bracket 4, with its bottom end abutting against the inner wall of the recovery tank 1. A spiral guide plate 7 surrounds the outer wall of the adsorption-desorption inner cylinder 6. Simultaneously, a sealing element is installed at the connection point between the bottom end of the inner wall of the recovery tank 1 and the adsorption-desorption inner cylinder 6. Figures 2-3 As shown. An adsorption resin layer 10 is installed inside the adsorption-desorption inner cylinder 6, and a central tube 11 is inserted through the adsorption resin layer 10. During installation, it is necessary to ensure that the axes of the adsorption-desorption inner cylinder 6, the adsorption resin layer 10, and the central tube 11 are aligned to form a concentric circle structure. Subsequently, a condensate flow pipe 12 is installed inside the central tube 11. The two-layer metal tube structure of the central tube 11 can reduce the heat exchange between the condensate flow pipe 12 and the external environment, thereby improving the condensation efficiency. The top of the condensate flow pipe 12 extends out of the upper end of the recovery tank 1, as shown. Figures 2-3 As shown, exhaust gas inlet pipes 9 are symmetrically installed on both sides of the recovery tank 1, and one-way drain pipe 8 is installed at the bottom of the recovery tank 1. Ensure that the one-way valve in the one-way drain pipe 8 is installed correctly. Cover the upper end of the recovery tank 1 with the protective cover 2 so that the top of the condensate flow pipe 12 passes through the protective cover 2. At the same time, install the discharge pipe 5 at the upper end of the protective cover 2 and ensure that the lower part of the discharge pipe 5 is aligned with the adsorption and desorption inner cylinder 6.

[0038] The bottom end of the adsorption-desorption inner cylinder 6 abuts against the inner wall of the recovery tank 1, and an adsorption resin layer 10 is provided inside the adsorption-desorption inner cylinder 6. The adsorption-desorption inner cylinder 6, the adsorption resin layer 10 and the central tube 11 are arranged in a concentric circle, and the adsorption resin layer 10 has a ring structure. The adsorption resin layer 10 is penetrated by the central tube 11, and a condensate flow pipe 12 is provided inside the central tube 11. The top end of the condensate flow pipe 12 penetrates the protective cover 2 and extends out. There is a one-way drain pipe 8 below the adsorption resin layer 10, and the one-way drain pipe 8 is set at the bottom of the recovery tank 1. The central tube 11 has a two-layer metal tube structure, and the hollow area inside the central tube 11 is used to place the bent condensate flow pipe 12.

[0039] Referring to the attached diagrams in the instruction manual Figures 1-6As shown, in actual use, the waste gas enters the inside of the recovery tank 1 through the waste gas inlet pipe 9. Under the guidance of the spiral guide plate 7, it flows around the adsorption-desorption inner cylinder 6 along the spiral path. After the waste gas enters the adsorption-desorption inner cylinder 6, it is evenly dispersed by the equidistant holes on its side wall and comes into full contact with the adsorption resin layer 10 inside the cylinder. The adsorption resin layer 10 adsorbs the target substances in the waste gas based on its own porous adsorption characteristics. The treated gas passes through the exhaust holes symmetrically arranged at the upper end of the adsorption-desorption inner cylinder 6, converges into the discharge pipe 5 and is discharged. The discharge pipe 5 can be connected to other emission treatment equipment through pipes as needed.

[0040] When it is necessary to desorb the saturated adsorption resin layer 10, the pressure inside the tank is reduced by connecting a vacuum device through the discharge pipe 5, so that the target substance adsorbed in the adsorption resin layer 10 is more easily desorbed under low pressure. At the same time, the condensate flow pipe 12 delivers condensate into the device. With the cooperation of the double-layer structure of the central pipe 11, the condensate condenses the saturated substance in the adsorption resin layer 10. At this time, the condensed liquid flows downward under the action of gravity and other forces, and is discharged into the recovery tank 1 through the one-way valve in the one-way discharge pipe 8, realizing the collection and discharge of condensate, completing the desorption of the saturated target substance from the resin, and the entire adsorption-desorption-condensation-recovery cycle ends.

[0041] Working principle: When using this easy-to-maintain resin adsorption-desorption condensation recovery device, the waste gas enters the recovery tank 1 through the waste gas inlet pipe 9. The waste gas entering the recovery tank 1 flows around the adsorption-desorption inner cylinder 6 along the spiral path under the guidance of the spiral guide plate 7.

[0042] After the exhaust gas enters the adsorption-desorption inner cylinder 6, the adsorption-desorption inner cylinder 6, with its equally spaced pore structure on its side wall, makes the exhaust gas evenly dispersed and fully contact the adsorption resin layer 10 inside the cylinder. The adsorption resin layer 10, based on its own porous adsorption characteristics, adsorbs the target substances in the exhaust gas. The treated gas passes through the exhaust holes symmetrically arranged at the upper end of the adsorption-desorption inner cylinder 6 and converges into the discharge pipe 5.

[0043] When desorption is required, a vacuum device can be connected through the discharge pipe 5 to adjust the pressure conditions inside the device. At the same time, the condensate flow pipe 12 delivers condensate into the device. The condensate enters the central pipe 11 through the condensate flow pipe 12 and acts evenly on the adsorption resin layer 10 through the gap between the two metal pipes. After condensation, it flows down along the inner wall of the adsorption-desorption inner cylinder 6 to condense the saturated substances in the adsorption resin layer 10 after the adsorption-desorption operation. The condensed liquid flows downward under the action of gravity and other forces. The liquid is discharged in one direction through the one-way valve in the one-way drain pipe 8, thus being discharged into the recovery tank 1. This realizes the collection and discharge of condensate, and enables the saturated target substances to be desorbed from the resin, completing the entire adsorption-desorption-condensation-recovery work cycle, which increases the overall practicality.

[0044] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A resin adsorption-desorption-condensation recovery device that is easy to maintain, comprising: The recycling tank (1) provides the main body of the device. The bottom of the recycling tank (1) is supported by the support base (3), and the top of the recycling tank (1) is covered by a protective cover (2). The recycling tank (1) and the protective cover (2) together form a closed tank. The feature is that: the inner wall of the recovery tank (1) is provided with a limiting bracket (4), and a spiral guide plate (7) is fixedly installed at the bottom of the limiting bracket (4). The spiral guide plate (7) surrounds the outer wall of the adsorption and desorption inner cylinder (6), and the adsorption and desorption inner cylinder (6) passes through the limiting bracket (4). Waste gas inlet pipes (9) are symmetrically arranged on both sides of the recovery tank (1). The bottom end of the adsorption-desorption inner cylinder (6) abuts against the inner wall of the recovery tank (1), and the adsorption-desorption inner cylinder (6) is fitted with an adsorption resin layer (10). The adsorption resin layer (10) is penetrated by the central tube (11), and a condensate flow pipe (12) is inserted inside the central tube (11). The top end of the condensate flow pipe (12) penetrates the protective cover (2) and extends out. There is a one-way drain pipe (8) below the adsorption resin layer (10), and the one-way drain pipe (8) is set at the bottom of the recovery tank (1).

2. The resin adsorption-desorption-condensation and recovery device for easy maintenance according to claim 1, characterized in that: A sealing element is provided at the connection between the bottom of the inner wall of the recovery tank (1) and the adsorption-desorption inner cylinder (6), and holes are provided at equal intervals on the side wall of the adsorption-desorption inner cylinder (6).

3. The resin adsorption-desorption-condensation and recovery device for easy maintenance according to claim 1, characterized in that: The protective cover (2) has an exhaust pipe (5) at the top, and the exhaust pipe (5) is aligned with the adsorption-desorption inner cylinder (6) below. The adsorption-desorption inner cylinder (6) has two exhaust holes symmetrically arranged at the top.

4. The resin adsorption-desorption-condensation and recovery device for easy maintenance according to claim 1, characterized in that: The height of the support base (3) is greater than the length of the one-way drain pipe (8), and a one-way valve is installed inside the one-way drain pipe (8).

5. The resin adsorption-desorption-condensation and recovery device for easy maintenance according to claim 3, characterized in that: The discharge pipe (5) is above the support base (3) and the discharge pipe (5) is connected to the inside of the recycling tank (1).

6. The resin adsorption-desorption-condensation and recovery device for easy maintenance according to claim 1, characterized in that: The adsorption-desorption inner cylinder (6), the adsorption resin layer (10) and the central tube (11) are arranged in a concentric circle, and the adsorption resin layer (10) has a ring structure.

7. The resin adsorption-desorption-condensation and recovery device for easy maintenance according to claim 1, characterized in that: The central tube (11) is a two-layer metal tube structure, and the hollow area inside the central tube (11) is used to place the bent condensate flow tube (12).

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