Movable desorption sealing assembly for rotary GAC

Abstract

The utility model discloses a movable desorption sealing assembly for a rotary GAC, and the movable desorption sealing assembly comprises sealing cavities which are respectively arranged at the two sides of the end surface of the rotary GAC and are used for sealing the end surface of the rotary GAC at the corresponding position; the driving part is connected with the sealing cavity and used for driving the sealing cavity to move so as to press or break away from the end face of the rotary GAC; the sealing cavity is used for pressing an opening in one side of the rotary GAC end face, and a main sealing strip and an auxiliary sealing strip which are used for sealing the rotary GAC end face are arranged at the position of the opening. When the sealing cavity compresses the end face of the rotary GAC, the main sealing strip and the auxiliary sealing strip are used for double sealing; when the sealing cavity is separated from the end face of the rotary GAC, the main sealing strip is synchronously separated from the end face of the rotary GAC, the auxiliary sealing strip is in lap joint with the end face of the rotary GAC to conduct area changing sealing, and in the high-temperature and high-pressure environment and in the desorption and cooling process of the rotary GAC, the temperature resistance and the sealing effect can be achieved, and the working efficiency is improved.

Description

Technical Field

[0001] The present application relates to the technical field of waste gas treatment, and in particular to a mobile desorption sealing assembly for a rotary GAC. Background Art

[0002] Currently, the waste gas treatment process in the coating, printing, pharmaceutical, petrochemical and other industries is mainly based on combustion, which emits a large amount of CO2. More and more companies are beginning to realize that volatile organic matter can be recycled and reused. This not only reduces CO2 emissions, but also can achieve positive economic benefits of solvent recovery under certain working conditions. Rotary granular activated carbon (GAC) adsorption devices are also gradually being developed and used.

[0003] During the desorption and cooling process, the internal pressure of the desorption and cooling cavity of the rotary GAC is 20KPa, and the traditional fluororubber clamping device can no longer meet its sealing requirements. In addition, the temperature can reach 220°C in the desorption state, and a high-temperature resistant sealing strip is required to seal the desorption area. However, the heat-resistant sealing strip cannot meet the long-term wear resistance. Moreover, under high-pressure and high-temperature conditions, the partitioned sealing components of the rotary GAC need to be both heat-resistant and sealable during desorption. In summary, the current sealing components cannot meet the sealing requirements of the rotary GAC in high-temperature and high-pressure environments. Utility Model Content

[0004] The present application provides a mobile desorption sealing assembly for a rotary GAC, which satisfies the sealing requirements of the desorption medium at 220°C and 20KPa.

[0005] According to some embodiments, the present application provides a mobile desorption sealing assembly for a rotary GAC, comprising: a sealing cavity, which is arranged on both sides of a rotary GAC end face and is used to seal the rotary GAC end face at a corresponding position; a driving member, which is connected to the sealing cavity and is used to drive the sealing cavity to move so as to compress or disengage from the rotary GAC end face; wherein, the sealing cavity is provided with an opening on one side for compressing the rotary GAC end face, and a main sealing strip and an auxiliary sealing strip for sealing the rotary GAC end face are provided at the position of the opening; when the sealing cavity compresses the rotary GAC end face, the main sealing strip and the auxiliary sealing strip are used for double sealing; when the sealing cavity disengages from the rotary GAC end face, the main sealing strip is synchronously disengaged from the rotary GAC end face, and the auxiliary sealing strip is overlapped on the rotary GAC end face for zone change sealing.

[0006] Preferably, an independent desorption chamber and cooling chamber are provided inside the sealed cavity; the desorption chamber and the cooling chamber are both connected to the opening of the sealed cavity; the desorption chamber and the cooling chamber are consistent with the shape and size of the partition of the rotary GAC.

[0007] Preferably, the driving member includes a cylinder, which is distributed on both sides of the sealed cavity, and the cylinder body of the cylinder is fixed to the equipment frame of the rotary GAC through a fixed plate; side plates are respectively provided on the opposite sides of the sealed cavity, and the output shaft of the cylinder is connected to the side plates to drive the sealed cavity to perform linear motion.

[0008] Preferably, the driving member further includes a guide rail, which is provided on the fixed plate and extends along the movement trajectory of the sealed cavity. The sealed cavity is slidably connected to the guide rail for moving back and forth along the guide rail.

[0009] Preferably, the driving member further includes a slider, which is fixed to the side plate; a sliding groove for the slider to slide is provided on the guide rail, and the slider is slidably arranged in the sliding groove.

[0010] Preferably, the desorption chamber and the cooling chamber are both arranged to be fan-shaped with the same size and shape as the partition of the rotary GAC; the main sealing strips are respectively arranged at the inner peripheral wall positions of the openings of the desorption chamber and the cooling chamber; the auxiliary sealing strips are respectively arranged at the end face positions of the openings of the desorption chamber and the cooling chamber.

[0011] Preferably, the main sealing strip is made of silicone rubber or fluororubber.

[0012] Preferably, the auxiliary sealing strip is made of fluororubber.

[0013] Preferably, the sealed cavity is provided with a first interface on its sealed side at a position corresponding to the desorption cavity, and the first interface is used for connecting a pipeline for external high-temperature gas; the sealed cavity is provided with a second interface on its sealed side at a position corresponding to the cooling cavity; the second interface is used for connecting a pipeline for external cooling gas.

[0014] Preferably, the pipeline and the first interface and the second interface are all connected by soft connections.

[0015] The embodiments of the present disclosure have at least the following advantages:

[0016] According to the partition size of the rotary GAC, the size of the sealing cavity is determined, and two independent fan-shaped cavities are respectively set on both sides of the end face of the rotary GAC, which can move independently. In the desorption and cooling state, the driving part is used to press the sealing cavity as a whole against the end face of the rotary GAC, and double sealing is performed by using the main sealing strip and the auxiliary sealing strip; in the zone change state, the sealing cavity is retracted, and the main sealing strip is synchronously separated from the end face of the rotary GAC, while the auxiliary sealing strip is overlapped on the end face of the rotary GAC for zone change sealing. When the rotary GAC rotates to the next partition, the driving part is used again to press the sealing cavity as a whole against the end face of the rotary GAC. Then, this sealing combination method of the present application can not only meet the sealing of the desorption medium at 220°C and 20Kpa, but also meet the long-term wear resistance. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the traditional technology, the following is a brief introduction to the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0018] Figure 1 This is a schematic structural diagram of a movable desorption seal assembly for a rotary GAC pressed against the end face of the rotary GAC in an embodiment of the present application;

[0019] Figure 2 This is a front structural schematic diagram of a mobile desorption sealing assembly for a rotary GAC in an embodiment of the present application;

[0020] Figure 3 This is a schematic diagram of the back structure of a mobile desorption sealing assembly for a rotary GAC in an embodiment of the present application;

[0021] Figure 4 It is a schematic diagram of the explosion structure between the sealing cavity, the sealing strip clip and the main sealing strip in the embodiment of the present application.

[0022] Figure numerals: 1. Sealing cavity; 11. Desorption cavity; 12. Desorption cavity; 13. First interface; 14. Second interface; 2. Rotary GAC; 3. Driving part; 31. Cylinder; 32. Guide rail; 33. Slider; 4. Main sealing strip; 5. Auxiliary sealing strip; 6. Fixed plate; 7. Side plate; 8. Sealing strip clamp. DETAILED DESCRIPTION

[0023] In order to make the purpose, technical solutions and advantages of the embodiments of the present application clearer, each embodiment of the present application will be described in detail below with reference to the accompanying drawings. However, it will be understood by those skilled in the art that in each embodiment of the present application, many technical details are proposed to enable the reader to better understand the present application. However, even without these technical details and various changes and modifications based on the following embodiments, the technical solutions claimed in the present application can be implemented. The division of the following embodiments is for convenience of description and should not constitute any limitation on the specific implementation of the present application. The various embodiments can be combined with each other and referenced to each other under the premise of no contradiction.

[0024] The present application embodiment provides a mobile desorption seal assembly for a rotary GAC, please refer to Figure 1-Figure 3 As shown, it includes a sealing cavity 1 and a driving member 3. The sealing cavity 1 is arranged on both sides of the rotating GAC2 end face and is used to seal the rotating GAC2 end face at the corresponding position; the driving member 3 is connected to the sealing cavity and is used to drive the sealing cavity to move to achieve compression or separation from the rotating GAC2 end face; wherein, the sealing cavity 1 is used to compress an opening on one side of the rotating GAC2 end face, and a main sealing strip 4 and an auxiliary sealing strip 5 for sealing the rotating GAC2 end face are provided at the position of the opening; when the sealing cavity 1 compresses the rotating GAC2 end face, the main sealing strip 4 and the auxiliary sealing strip 5 are used for double sealing; when the sealing cavity 1 separates from the rotating GAC2 end face, the main sealing strip 4 is synchronously separated from the rotating GAC2 end face, and the auxiliary sealing strip 5 is overlapped on the rotating GAC2 end face for zone change sealing.

[0025] In this embodiment, the size of the sealing cavity 1 is determined according to the partition size of the rotary GAC2. Two independent sealing cavities 1 are respectively provided on both sides of the end face of the rotary GAC2, which can move independently. In the desorption and cooling state, the driving member 3 is used to press the sealing cavity 1 as a whole against the end face of the rotary GAC2, and double sealing is performed by using the main sealing strip 4 and the auxiliary sealing strip 5; in the zone change state, the sealing cavity 1 is retracted, and the main sealing strip 4 is synchronously separated from the end face of the rotary GAC2, while the auxiliary sealing strip 5 is still overlapped on the end face of the rotary GAC2 for zone change sealing. When the rotary GAC2 rotates to the next partition position, the driving member 3 is used again to press the sealing cavity 1 as a whole against the end face of the rotary GAC2. Then, this sealing combination mode of the present application can not only meet the sealing of the desorption medium at 220°C and 20Kpa, but also meet the long-term wear resistance.

[0026] Please continue to refer to Figure 1-Figure 3As shown, in this embodiment, it should be noted that the rotary GAC2 mentioned here specifically includes a rotor, which has the shape of a cylinder. The rotor is divided into a number of equal-sized and independent fan-shaped cavities around its center to become partitions of the rotary GAC2. Each fan-shaped cavity is filled with adsorption material. One side of the rotor is the exhaust gas inlet side, and the other side is the exhaust gas outlet side. The organic waste gas enters the fan-shaped cavity through the inlet side, so that the adsorption material filled in the fan-shaped cavity adsorbs the organic waste gas, and the filtered gas flows out from the other side of the fan-shaped cavity, thereby achieving adsorption filtration of the organic waste gas. Of course, the rotary GAC2 selects one of the partitions as the desorption zone, and the partition adjacent to the desorption zone as the cooling zone. When the partition on the rotary GAC2 is saturated with adsorption, each partition is rotated to pass through the desorption zone and the cooling zone in turn for desorption and cooling operations. The rotary GAC is a relatively mature technology in this field and will not be described in detail here.

[0027] In one example, the size of the sealed cavity 1 is determined according to the partition size of the rotary GAC2, and an independent desorption cavity 11 and a cooling cavity 12 are provided inside the sealed cavity 1. The desorption cavity 11 and the cooling cavity 12 are both connected to the opening of the sealed cavity 1, and the desorption zone of the desorption cavity 11 and the rotary GAC2 are consistent in shape and size, and the cooling cavity 12 and the cooling zone of the rotary GAC2 are consistent in shape and size and are both fan-shaped. It can be understood that the rotary GAC2 can be configured to include a desorption zone, a cooling zone and the remaining adsorption zone. Specifically, since the partitions of the rotary GAC2 are fan-shaped cavities of equal size and independent of each other, the desorption chamber 11 and the cooling chamber 12 are also set to be fan-shaped to match the partition shape of the rotary GAC2. After the rotary GAC2 adsorbs the exhaust gas, it rotates to the desorption chamber 11 of the sealed chamber 1 corresponding to the desorption zone and the cooling chamber 12 of the sealed chamber 1 corresponding to the cooling zone. At this time, the driving member 3 drives the sealed chamber 1 to press the end face of the rotary GAC2 to form a desorption channel and a cooling channel, and the main sealing strip 4 and the auxiliary sealing strip 5 arranged at the openings of the desorption chamber 11 and the cold zone chamber 12 further seal the desorption channel and the cooling channel to prevent air leakage, thereby realizing exhaust gas desorption and low-temperature cooling.

[0028] Please refer to Figure 2-Figure 4As shown, specifically, the main sealing strip 4 is respectively arranged at the inner peripheral wall position of the opening of the desorption chamber 11 and the cooling chamber 12. The main sealing strip 4 can be made of silicone rubber or fluororubber. The auxiliary sealing strip 5 is respectively arranged at the end surface position of the opening of the desorption chamber 11 and the cooling chamber 12. The auxiliary sealing strip 5 can be made of fluororubber. With this arrangement, in the desorption and cooling state, the driving member 3 is used to press the sealing chamber 1 as a whole against the end face of the rotating GAC2, and the main sealing strip 4 and the auxiliary sealing strip 5 are used to seal. In the zone change state, the sealing chamber 1 is retracted by the driving member 3. At this time, the main sealing strip 4 is separated from the end face of the rotating GAC2, and the end of the auxiliary sealing strip 5 overlaps the end face of the rotating GAC2 to perform zone change sealing. It can be understood that the zone change of the rotating GAC2 refers to the adsorption zone being rotated to the corresponding desorption chamber 11 for desorption during the rotation process, and the partition after desorption is rotated to the corresponding cooling chamber 12 for cooling.

[0029] Preferably, a sealing strip clamping plate 8 is mounted on the outer periphery of the sealing cavity 1 , and the sealing strip clamping plate 8 and the main sealing strip 4 are fixed to the inner and outer sides of the sealing cavity 1 by using screws or the like.

[0030] Please refer to Figure 2 、 Figure 3 As shown, in this embodiment, it should also be noted that the driving member 3 includes a cylinder 31, which is distributed on both sides of the sealing cavity 1, and the cylinder body of the cylinder 31 is fixed to the equipment frame of the rotary GAC2 through a fixing plate 6; side plates 7 are respectively provided on both sides opposite to the sealing cavity 1, and the output shaft of the cylinder 1 is connected to the side plates 7 to drive the sealing cavity 1 to perform linear motion.

[0031] Specifically, the driving member 3 also includes a guide rail 32, wherein the guide rail 32 is arranged on the fixed plate 6 and extends along the movement trajectory direction of the sealing cavity 1. The driving member 3 also includes a slider 33, the slider 33 is fixed on the side plate 7, and the guide rail 32 is provided with a sliding groove for the slider 33 to slide. The slider 33 is slidably arranged in the sliding groove, thereby realizing a sliding connection between the sealing cavity 1 and the guide rail 32. The output shaft of the cylinder 31 drives the sealing cavity 1 to move back and forth along the guide rail 32 through the side plate 7. When the partition of the rotary GAC2, that is, the adsorption zone, is saturated with adsorption, it enters the desorption zone and the cooling zone for desorption and cooling operations. During this process, the cylinder 31 is connected to the gas source and drives the sealing chamber 1 along the guide rail 32 to return to the minimum stroke. The desorption chamber 11 and the cooling chamber 12 of the sealing chamber 1 are respectively pressed against the desorption zone and the cooling zone of the end face of the rotary GAC2, and then a desorption channel is formed between the desorption chamber 11 and the desorption zone for desorption operation, and a cooling channel is formed between the cooling chamber 12 and the cooling zone for cooling operation. After the operation is completed, the rotary GAC2 changes zones, and the cylinder 31 drives the sealing chamber 1 to move along the guide rail 32 away from the end face of the rotary GAC2, that is, the sealing chamber 1 is separated from the end face of the rotary GAC2. At the same time, the main sealing strip 4 is separated from the end face of the rotary GAC2, and the end of the auxiliary sealing strip 5 overlaps the end face of the rotary GAC2 to perform zone change sealing.

[0032] It should be noted that, in the above embodiments, the structure of the guide rail and the slider can be realized by other structures besides the structure described in the embodiments. This application does not list them one by one. As long as they are within the spirit and principles of the above embodiments of this application, they all fall within the scope of protection of this application.

[0033] Please continue to refer to Figure 2 、 Figure 3 As shown, in this embodiment, it should also be noted that a first interface 13 is provided on the sealed side of the sealed cavity 1 at a position corresponding to the desorption cavity 11, and the first interface 13 is used for connecting a pipeline for external high-temperature gas; a second interface 14 is provided on the sealed side of the sealed cavity 1 at a position corresponding to the cooling cavity 12; the second interface 14 is used for connecting a pipeline for external cooling gas.

[0034] Specifically, the pipeline and the first interface 13 and the second interface 14 are all connected by soft connections, such as metal hoses. When the adsorption zone of the rotary GAC2 is saturated with adsorption, it enters the desorption zone and the cooling zone to perform desorption and cooling operations. During this process, the driving member 31 drives the sealed cavity 1 to move to the end face of the rotary GAC2. At this time, the first interface 13 is connected to the high-temperature desorption gas, and the second interface 14 is connected to the low-temperature cooling gas. The desorption zone of the rotary GAC2 is subjected to high-temperature desorption and the cooling zone is subjected to low-temperature cooling. After the operation is completed, the rotary GAC2 changes zones. At this time, the first interface 13 and the second interface 14 are connected by soft connections to ensure that when the sealed cavity 1 moves away from the end face of the rotary GAC2, the first interface 13 and the second interface 14 have room for movement, so that the sealed cavity 1 as a whole can move in a small range, further ensuring a sealed connection with the sealed cavity 1.

[0035] The implementation principle of this embodiment is: when the adsorption zone of the rotary GAC2 is saturated with adsorption, it enters the desorption zone and the cooling zone for desorption and cooling operations. During this process, the cylinder 31 drives the sealing cavity 1 to move along the guide rail 32 to the partition that presses the end face of the rotary GAC2. The main sealing strip 4 and the auxiliary sealing strip 5 are both pressed on the corresponding partitions to form a sealed desorption zone and cooling zone. At this time, the first interface 13 is connected to the high-temperature desorption gas, and the second interface 14 is connected to the low-temperature cooling gas. The desorption zone of the rotary GAC2 is subjected to high-temperature desorption and the cooling zone of the rotary GAC2 is subjected to low-temperature cooling. After the operation is completed, the rotary GAC2 rotates and changes zones. At this time, the cylinder 31 drives the sealing cavity 1 to retract to separate from the end face of the rotary GAC2. At the same time, the main sealing strip 4 follows the sealing cavity 1 to separate from the sealing surface of the rotary GAC2, and the auxiliary sealing strip 5 is still overlapped on the end face of the rotary GAC2 to achieve auxiliary sealing during the zone change process. Therefore, through the double sealing structure of the main sealing strip 4 and the auxiliary sealing strip 5, the rotary GAC2 can be desorbed and cooled in a high temperature and high pressure environment, which not only meets the requirements of temperature resistance but also plays a sealing role, thereby improving work efficiency.

[0036] It should be understood that the above-mentioned specific embodiments of the present application are merely illustrative or explain the principles of the present application and do not constitute a limitation of the present application. Therefore, any modifications, equivalent substitutions, improvements, etc. made without departing from the spirit and scope of the present application should be included in the scope of protection of the present application. In addition, the claims attached hereto are intended to cover all variations and modifications that fall within the scope and boundaries of the appended claims, or the equivalent forms of such scope and boundaries.

Claims

1. A mobile desorption seal assembly for a rotary GAC, characterized in that: include: A sealing cavity (1), the sealing cavity (1) being arranged on both sides of the end face of the rotary GAC (2) and used for sealing the end face of the rotary GAC (2) at corresponding positions; A driving member (3), the driving member (3) being connected to the sealing cavity (1) and being used to drive the sealing cavity (1) to move so as to achieve compression or separation of the end face of the rotary GAC (2); The sealing cavity (1) is provided with an opening on one side for pressing the end face of the rotary GAC (2), and a main sealing strip (4) and an auxiliary sealing strip (5) for sealing the end face of the rotary GAC (2) are provided at the position of the opening; When the sealing cavity (1) is pressed against the end face of the rotary GAC (2), double sealing is performed using the main sealing strip (4) and the auxiliary sealing strip (5); When the sealing cavity (1) is separated from the end face of the rotating GAC (2), the main sealing strip (4) is simultaneously separated from the end face of the rotating GAC (2), and the auxiliary sealing strip (5) is overlapped on the end face of the rotating GAC (2) to perform zone change sealing.

2. The mobile desorption seal assembly for rotary GAC according to claim 1, characterized in that: An independent desorption chamber (11) and a cooling chamber (12) are provided inside the sealed cavity (1); The desorption chamber (11) and the cooling chamber (12) are both in communication with the opening of the sealed cavity (1); The desorption chamber (11) and the cooling chamber (12) are both consistent in shape and size with the partitions of the rotary GAC (2).

3. The mobile desorption seal assembly for rotary GAC according to claim 2, characterized in that: The driving member (3) includes a cylinder (31), the cylinder (31) is distributed on both sides of the sealed cavity (1), and the cylinder body of the cylinder (31) is fixed to the equipment frame of the rotary GAC (2) through a fixing plate (6); Side plates (7) are respectively provided on opposite sides of the sealed cavity (1), and the output shaft of the cylinder (31) is connected to the side plates (7) to drive the sealed cavity (1) to perform linear motion.

4. The mobile desorption seal assembly for rotary GAC according to claim 3, characterized in that: The driving member (3) further comprises a guide rail (32), wherein the guide rail (32) is arranged on the fixed plate (6) and extends along the movement trajectory of the sealed cavity (1); the sealed cavity (1) is slidably connected to the guide rail (32) and is used to move forward and backward along the guide rail (32).

5. The mobile desorption seal assembly for rotary GAC according to claim 4, characterized in that: The driving member (3) further includes a slider (33), and the slider (33) is fixed on the side plate (7); The guide rail (32) is provided with a sliding groove for the sliding block (33) to slide, and the sliding block (33) is slidably arranged in the sliding groove.

6. The mobile desorption seal assembly for rotary GAC according to claim 2, characterized in that: The desorption chamber (11) and the cooling chamber (12) are both configured to be sectors having the same shape and size as the partitions of the rotary GAC (2); The main sealing strips (4) are respectively arranged at inner peripheral walls of the openings of the desorption chamber (11) and the cooling chamber (12); The auxiliary sealing strips (5) are respectively arranged at the end surfaces of the openings of the desorption chamber (11) and the cooling chamber (12).

7. The mobile desorption seal assembly for rotary GAC according to claim 1 or 6, characterized in that: The main sealing strip (4) is made of silicone rubber or fluororubber.

8. The mobile desorption seal assembly for rotary GAC according to claim 1 or 6, characterized in that: The auxiliary sealing strip (5) is made of fluororubber.

9. The mobile desorption seal assembly for rotary GAC according to claim 1, characterized in that: The sealed cavity (1) is provided with a first interface (13) at a position corresponding to the desorption cavity (11) on one side of the sealed cavity, and the first interface (13) is used for connecting a pipeline for passing high-temperature gas from the outside; The sealed cavity (1) is provided with a second interface (14) at a position corresponding to the cooling cavity (12) on one sealed side thereof; the second interface (14) is used for connecting a pipeline for external cooling gas.

10. The mobile desorption seal assembly for rotary GAC according to claim 9, characterized in that: The pipeline and the first interface (13) and the second interface (14) are all connected by flexible connections.

Images