Matrix-type rotary butt-joint gas treatment equipment

Abstract

The present invention relates to an apparatus for treating organic exhaust gas pollutants by catalytic or adsorption concentration, which comprises a plurality of treatment units and a set of rotary regeneration devices. The treatment units are arranged in a rectangular array, and the positions of the inlets and exhaust ports of the treatment units are set so that the inlets and exhaust ports of all the treatment units are uniformly distributed within two circular tracks, respectively. The rotary regeneration device is connected to the inlets and outlets of each treatment unit by a rotary butt joint. In the treatment process, the working gas passes through the parallel treatment units in parallel. The regeneration process is carried out step by step, and at each step, the heating and regeneration of the treatment agent in the regeneration treatment unit is completed synchronously, and at the same time, the heat of the heat recovery treatment unit is recovered to cool the treatment unit, and the regeneration gas heating device is fitted into the rotary butt joint device. This apparatus greatly simplifies the mechanical configuration and control method of the parallel piping type adsorption concentration apparatus.

Description

[Technical Field]

[0001] The present invention relates to a gas treatment device, and more particularly to a gas treatment device for treating organic exhaust gas pollutants by a catalytic method or an adsorptive concentration method. [Background technology]

[0002] Patent document (CN110772927A) discloses a gas adsorption concentration apparatus consisting of multiple parallel adsorption units and a set of mobile hot air regeneration devices. Its active function is to convert the regeneration process of a regenerative fixed-bed adsorber from a centralized regeneration process requiring high power consumption to a staged regeneration process requiring low power consumption. During the regeneration process, two serially connected adsorption units recover the heat absorbed by the adsorbent, and the heat in the discharged regeneration gas is recovered through heat exchange between the adsorption units, thereby fully utilizing thermal energy. The mobile regeneration device is composed of a hot air regeneration device and a mechanical moving device. The hot air regeneration device connects one end of the adsorption unit group consisting of two adsorption units to a regeneration gas supply device and a regeneration gas treatment device, respectively, through flexible pipes. This part of the hot air regeneration device is called the IO end. A pipe including a gas heating device connects the other two ends of the adsorption unit group, called the CA end. The regeneration gas from the regeneration gas supply device passes sequentially through the two adsorption units of the adsorption unit group and reaches the regeneration gas treatment device. The mechanical moving device supports the hot air regenerator, and is driven by a controlled power to sequentially connect and switch the regenerator to each group of adsorption units.

[0003] In fact, in the process of the mechanical movement device sequentially connecting and switching between the IO end, CA end and each suction unit group, it is necessary to support the lateral movement, vertical movement and rotation of the IO end and CA end. In addition, there are at least eight controlled movements on both sides for the connection and disconnection of the IO end, CA end and suction units. The complexity of these controlled movements and the manufacturing control precision required keep the manufacturing cost of the equipment high. Operational reliability poses considerable challenges to the manufacturing and operational maintenance of the equipment. Summary of the Invention [Problem to be solved by the invention]

[0004] The present invention improves the mechanical configuration and control method of the mechanical movement device according to the above-mentioned technical solution, and improves the mechanism of its regeneration process, thereby reducing the number of controlled movements, simplifying the movement control method, reducing equipment costs, and improving the reliability of equipment operation.

[0005] This device can also be used to treat organically polluted exhaust gases using a catalytic method at room temperature. When organically polluted exhaust gases pass through the device, the catalyst catalytically generates non-toxic, harmless, or low-toxic substances, which are then discharged. The catalyst formulation and packing method are the same as or similar to those of the adsorbent, and the catalytic process is similar to that of the adsorption process. While pollutants generally do not remain in the catalyst for long periods of time, the catalytic pollutants themselves and trace amounts of harmful substances accompanying them can cause catalyst deactivation. To address this deactivation, harmful substances can be desorbed from the catalyst by heating, essentially restoring the catalyst's original catalytic activity. The process of restoring catalytic activity by heating the catalyst is similar to the process of restoring adsorption activity by regenerating the adsorbent, and the two treatment processes can be collectively referred to as regeneration. Accordingly, the catalytic process and adsorption process for polluted gases are collectively referred to as treatment processes. Similar treatment processes can also be used to treat harmful gases generated by adsorbent regeneration and catalyst regeneration. Here, the polluted gas is referred to as the working gas or working vapor, and the regenerated or regenerated treated gas is referred to as the regenerated gas or regenerated vapor. [Means for solving the problem]

[0006] A specific technical solution of the present invention is a gas treatment device comprising a housing, a working gas inlet, a working gas outlet, multiple treatment units, and a set of rotary regenerators. The treatment units are small fixed-bed reactors, and all treatment units are arranged in a rectangular array and connected by a support and connection structure to form a sealed treatment core. Working gas entering the housing through the working gas inlet passes through the treatment units in the treatment core and reaches the working gas outlet. The rectangular array here is borrowed from the operation commands of a drawing software. During the regeneration process, regeneration gas from the regeneration gas supply device heats and regenerates the treatment agent in the regeneration treatment unit group, which includes at least one treatment unit, while simultaneously recovering the heat absorbed by the treatment agent in the heat recovery treatment unit group, which also includes at least one treatment unit, to cool the treatment unit group. The rotary butt-joining device is fitted with a regeneration gas heating device and is driven by a controlled power source to connect and switch between the rotary regenerator and each treatment unit through separation, rotation, and butt-joining operations.

[0007] When implementing the above solution, the intake and exhaust ports of the processing units are set at different locations, so that the intake and exhaust ports of all the processing units arranged in a matrix can be uniformly distributed within two circular tracks, respectively. The rotary butt joint devices on both sides can rotate synchronously through mechanical connections and perform axial extension and contraction movements, thereby achieving butt jointing and separation between the rotary regeneration device and each processing unit during regeneration processing.

[0008] The treatment unit may be installed in the shape of a rectangular parallelepiped, and the treatment agent may be in the form of a granule. A double layer of sieve plates divides the space within the treatment unit into three parts from top to bottom: an upper gas passage, a filler chamber, and a lower gas passage. The filler chamber is filled with filler, and during treatment, the working gas passes through the filler chamber from bottom to top, and during regeneration, the working gas passes through the filler chamber from top to bottom.

[0009] The casings of all the processing units, including the intake and exhaust ports, are installed to have the same configuration, and there are six or eight processing units, arranged in a 2x3 or 2x4 configuration, and the casings of the same configuration can be converted between different shapes by rotating them in three mutually orthogonal directions: up and down, left and right, and front and back. In this way, the number of molds used for molding the processing units during mass production can be reduced.

[0010] A specific technical solution of the present invention is a gas treatment device comprising a housing, a working gas inlet, a working gas outlet, multiple treatment units, and a set of rotary regenerators. The treatment units correspond to small fixed-bed adsorbers, and all treatment units are arranged in a roughly rectangular array and connected by a support and connection structure to form a sealed treatment core. Working gas entering the housing through the working gas inlet passes through the treatment units in the treatment core and reaches the working gas outlet. The rectangular array here is borrowed from the operation command of a drawing software, where "roughly" refers to the overall arrangement, and the number of units in each row and column is not strictly equal. For example, the number of units in the middle or at the four corners is intentionally left empty for functional design purposes. The rotary regenerator comprises a regenerator gas supply device, a regenerator gas heating device, and a rotary butt welding device. The rotary butt joint device includes a regenerative gas A-side rotary butt joint, a treatment unit inlet / outlet conversion device, and a regenerative gas B-side rotary butt joint. The treatment unit inlet / outlet conversion device functions to connect the inlets and outlets of the treatment units, which are arranged in a substantially rectangular array, to two uniformly arranged circular loci corresponding to the regenerative gas A-side rotary butt joint and the regenerative gas B-side rotary butt joint, respectively. In a specific example, multiple pipes of different lengths and shapes may have one end connected to the inlet / outlet end of the treatment unit and the other end opening sequentially into the two circular loci corresponding to the regenerative gas A-side and B-side rotary butt joints, respectively. Furthermore, a single disk may be used to integrally connect the pipe openings in the two circular loci. The rotary butt joints on both sides can rotate synchronously through a mechanical connection. In the regeneration process, the regeneration gas from the regeneration gas supply device heats and regenerates the treatment agent in the regeneration treatment unit group including at least one treatment unit, and simultaneously recovers the heat absorbed by the treatment agent in the heat recovery treatment unit group including at least one treatment unit during the regeneration process, thereby cooling the treatment unit group. The rotary butt welding device is fitted with the regeneration gas heating device, and is driven by a controlled power to connect and switch between the rotary regeneration device and each treatment unit group by separation, rotation, and butt welding operations.

[0011] The regeneration processing unit group and the heat recovery processing unit group may each include only one processing unit.

[0012] When the regeneration treatment unit group includes two or more treatment units, the exhaust gas concentration ratio in the regeneration process of the device can be increased, and the heat utilization efficiency in the regeneration process of the device can also be increased.

[0013] When the recovery and treatment unit group includes two or more treatment units, the heat utilization efficiency in the regeneration process of the device can be improved, which also plays a certain positive role in the depth of regeneration of the treatment agent by the device.

[0014] By installing large resistance reduction valves on both ends of the treatment unit, the working gas does not need to pass through the regeneration gas A and B side branch line connection device during treatment operation, reducing the ventilation resistance of the working gas.

[0015] The connecting pipes connected to both sides A and B can improve the flow direction of the regeneration gas during the regeneration process, thereby achieving full forward flow regeneration or the combination of regeneration and cooling.

[0016] The function of heating the regeneration gas can be transferred via a pipeline to a nearby RTO device that processes the regeneration gas, and when treating polluted gas containing VOCs that contain a large amount of heat, the excess heat from the thermal decomposition of the VOCs can be used to heat the regeneration gas. [Effects of the Invention]

[0017] The positive effects of the present invention are as follows: (1) Compared with the previous parallel-pipe type gas adsorption and concentration device, the mechanical configuration and control method of the mobile desorption device are simplified. The rotary shaft mechanical transmission device can be installed outside the gas path, which avoids corrosion caused by high humidity and high temperature gas in the exhaust gas environment. (2) By realizing multi-stage desorption of desorbed gas, such as "entering at low temperature and exiting at low temperature," it has the dual effect of improving the concentration rate and reducing the desorption energy consumption. (3) The short rigid pipe facilitates high-temperature gas transport when waste heat from the thermal decomposition of VOCs by RTO is used as the desorption heat source. [Brief explanation of the drawings]

[0018] The present invention will be further explained below with reference to the drawings and examples.

[0019] [Figure 1] 1 is a schematic diagram of the exhaust gas treatment function of a modular matrix rotary butt-joint gas treatment device. FIG. [Figure 2A] Schematic diagram of the regeneration line connection configuration and function in a modular matrix type rotary butt-welded gas treatment system, showing two steps. [Figure 2B] Schematic diagram of the regeneration line connection configuration and function in a modular matrix type rotary butt-welded gas treatment system, showing two steps. [Figure 3] FIG. 1 is a schematic diagram of the configuration of an A-side rotary butt welding device in an embodiment having six processing units. [Figure 4] FIG. 1 is a schematic diagram of the configuration of a B-side rotary butt welding apparatus in an embodiment having six processing units. [Figure 5] 1 is a schematic diagram of imaginary rotation axes in three mutually orthogonal spatial directions in a processing unit. FIG. [Figure 6] FIG. 1 is a schematic diagram of the configuration of an A-side rotary butt welding device in an embodiment having eight processing units. [Figure 7] FIG. 1 is a schematic diagram of the configuration of a B-side rotary butt welding apparatus in an embodiment having eight processing units. [Figure 8] FIG. 1 is a schematic diagram of the regeneration line connectivity of a modular rotary butt-welded gas treatment system. [Figure 9A] FIG. 9 is a schematic diagram showing the connection configuration of the A-side regeneration pipeline in the device shown in FIG. [Figure 9B]FIG. 9 is a schematic diagram showing the connection configuration of the B-side regeneration pipeline in the device shown in FIG. [Figure 10] 9 is a schematic diagram of the improved function of the device shown in FIG. 8, in which a drag reduction valve has been added. [Figure 11] FIG. 10 is a functional schematic diagram of the device, in which upgraded regeneration and upgraded heat recovery functions are installed, prioritizing the cooling effect. [Figure 12A] FIG. 12 is a schematic diagram showing the connection function and configuration of the A-side regeneration pipeline in the device shown in FIG. [Figure 12B] FIG. 12 is a schematic diagram showing the connection function and configuration of the B-side regeneration pipeline in the device shown in FIG. [Figure 13] FIG. 12 is a schematic perspective view of the regeneration gas input / output side of the device shown in FIG. 11. [Figure 14] FIG. 12 is a schematic perspective view of the regeneration gas heating side of the device shown in FIG. 11. [Figure 15A] FIG. 1 is a schematic diagram of a mechanical actuation of a drag reduction valve. [Figure 15B] 1 is a schematic diagram of an enlarged portion of the mechanical drive of the drag reduction valve showing the motion trajectory of the force-closing mechanical arrangement of the drag reduction valve; [Figure 16] 1A and 1B are schematic diagrams of the open and closed states of the force-closing mechanical configuration of the drag reduction valve. [Figure 17] FIG. 10 shows a functional schematic diagram of the device, in which upgraded regeneration and upgraded heat recovery functions are installed, with priority given to the depth of regeneration. [Figure 18] Fig. 12 is a functional schematic diagram of the device shown in Fig. 11, in which the function of using the waste heat of the RTO as a heat source for regeneration gas is added. DETAILED DESCRIPTION OF THE INVENTION

[0020] Example 1 Modular matrix rotary butt-joint gas treatment system with six treatment units

[0021] 1, the apparatus includes a housing 11, a working gas inlet 12, a working gas outlet 13, six treatment units 21, and a set of rotary regenerators 3. The treatment units 21 correspond to small fixed-bed adsorbers, and all the treatment units are arranged in a rectangular array and connected by a support and connection structure 22 to form a sealed treatment core 2. During treatment operation, the working gas entering the housing through the working gas inlet 12 cannot reach the working gas outlet 13 unless it passes through the treatment units 21 in the treatment core 2.

[0022] The rotary regeneration device 3 comprises a regeneration gas supply device 31, a rotary butt joint device 32, and a regeneration gas heating device 33. The regeneration gas supply device 31 comprises an air filter device 311 and a regeneration fan 312. The rotary butt joint device 32 comprises a regeneration gas A-side rotary butt joint 321A and a regeneration gas B-side rotary butt joint 321B. The rotary butt joints on both sides are connected by a connecting shaft 34 and rotate synchronously. The regeneration gas supply device 31 and the regeneration gas treatment device 9 are connected to the regeneration gas A-side rotary butt joint 321A by a single coaxial rotary joint 323. The regeneration gas treatment device 9 here is a peripheral equipment of a modular rotary butt joint gas treatment device, such as an RTO.

[0023] Take adsorption as an example. During adsorption, the regeneration gas A-side rotary butt joint 321A and the regeneration gas B-side rotary butt joint 321B are separated from the inlet 211A and outlet 211B of each treatment unit. The working gas enters the plenum chamber 111A in the housing 11 through the working gas inlet 12, enters the six treatment units 21 in parallel through the treatment unit inlets 211A, and passes through the treatment agent filler layer 212 within the treatment units 21. The contaminants are retained in the treatment agent, and the cleaned working gas leaves the treatment units 21, enters the collection box 111B through the outlet 211B, and is finally discharged from the entire device through the working gas outlet 13, completing the adsorption process.

[0024] 2A and 2B, in the case of regeneration operation, the first treatment unit does not have a heat recovery function. Starting with the second treatment unit, the regeneration gas passes through the air filter device 311, the regeneration fan 312, the coaxial rotary joint 323, the regeneration gas A-side rotary butt joint 321A, and the inlet 211A to enter the heat recovery treatment unit, where it is preheated by the filler 212 in the heat recovery unit, passes through the outlet 211B to the B-side rotary butt joint 321B and the regeneration gas heater 33 fitted therein, and then passes through the working gas outlet 211B to enter the regeneration treatment unit again, where it heats the treatment agent filler 212 in the regeneration treatment unit for regeneration, and then passes through the inlet 211A to the A-side rotary butt joint 321A again with the desorbed pollutants, and is discharged to the regeneration gas treatment device 9 via the coaxial rotary joint 323A.

[0025] 3 and 4, the regeneration gas heats and regenerates the treatment agent in the regeneration treatment unit, while simultaneously recovering the heat absorbed by the treatment agent in the heat recovery treatment unit during the regeneration process to cool the treatment unit. The rotary butt joints 321A and 321B on both sides are driven by a controlled power source to perform disconnection, rotation, and butt-jointing operations to connect and switch between the rotary regeneration device 3 and each treatment unit. The B-side rotary butt joint 321B connects and supports the regeneration gas heater 33, which moves synchronously with the B-side rotary butt joint 321B.

[0026] Example 2 Modular matrix rotary butt-joint gas treatment system with eight treatment units

[0027] 5 to 7, the apparatus of this embodiment includes eight processing units 21, and other features are the same as those of the apparatus of the first embodiment.

[0028] In this embodiment, the casings of the eight processing units 21, including the intake and exhaust ports, are installed to have the same configuration, arranged in a 2x4 pattern, and can be rotated 180° in the X, Y, and Z axis directions, i.e., flipped in three directions: up and down, left and right, and front and back, to achieve conversion between them.

[0029] For example, the four processing units 21 on the left are labeled E, F, G, and H. Processing unit E is transformed into F when rotated 180° about the Y axis, transformed into G when rotated 180° about the Z axis, and transformed into H when rotated 180° about the X axis. The four units on the right can also be transformed in this way.

[0030] Example 3 For a basic model of a modular rotary butt-joint gas treatment system, see Figures 8, 9A and 9B.

[0031] 8, the gas treatment device includes a housing 11, a working gas inlet 12, a working gas outlet 13, 24 treatment units 21, and one set of rotary regenerator 3. The treatment units 21 are small fixed-bed adsorbers, and all of the treatment units are arranged in a substantially rectangular array and connected by a support connection structure 22 to form a sealed treatment core 2. As a result, the working gas that enters the housing through the working gas inlet 12 cannot reach the working gas outlet 13 unless it passes through the treatment units 21 in the treatment core 2.

[0032] 8 and 9A and 9B, the rotary regeneration device 3 includes a regeneration air supply device 31, a rotary butt joint device 32, and a regeneration gas heating device 33. The regeneration gas supply device 31 includes an air filter device 311 and a regeneration fan 312. The rotary butt joint device 32 includes a regeneration gas A-side rotary butt joint 321A, a regeneration gas A-side branch line connection device 322A, a regeneration gas B-side branch line connection device 322B, and a regeneration gas B-side rotary butt joint 321B. The rotary butt joints on both sides are connected by a connecting shaft 34 and rotate synchronously. The regeneration gas A-side branch line connection device 322A and the regeneration gas B-side branch line connection device 322B each have a butt joint disk 3221A, 3221B, each of which has 24 butt joint ports 32211A, 32211B, which are connected to the intake and exhaust ports 211A, 211B of the corresponding treatment units via branch line connection pipes 3222A, 3222B. The regeneration gas supply device 31 and the regeneration gas treatment device 9 are connected to the regeneration gas A-side rotary butt joint 321A by a coaxial rotary joint 323. The regeneration gas treatment device 9 here is an RTO, which is a peripheral equipment of a modular rotary butt joint gas treatment device.

[0033] Here, we take adsorption processing as an example. During adsorption, the regeneration gas A-side rotary butt joint 321A and the regeneration gas B-side rotary butt joint 321B are separated from their corresponding butt joint disks 3221A and 3221B. The working gas enters the plenum chamber 111A in the housing 11 through the working gas inlet 12, enters the 24 treatment units 21 in parallel through the regeneration gas A-side branch connection device 322A, and passes through the treatment agent filler layer 212 in the treatment units. The contaminants are retained in the treatment agent, and the cleaned working gas exits the treatment units 21, passes through the regeneration gas B-side branch connection device 322B into the collection box 111B, and finally is discharged from the entire system through the working gas outlet 13, completing the adsorption process.

[0034] During regeneration, the regeneration gas passes through the air filter device 311, the regeneration fan 312, the coaxial rotary joint 323A, the regeneration gas A-side rotary butt joint 321A, and the regeneration gas A-side branch line connector 322A to enter the heat recovery treatment unit group, where it is preheated by the filler 212 in the heat recovery unit, enters the regeneration gas B-side branch line connector 322B, passes through the regeneration gas B-side rotary butt joint 321B and the regeneration gas heater 33 fitted therein, and then passes again through another connecting pipe in the regeneration gas B-side branch line connector 322B to enter the regeneration treatment unit group, where it heats and regenerates the treatment agent filler 212 in the regeneration treatment unit. The desorbed pollutants are then taken back into the regeneration gas A-side branch line connector 322A and the regeneration gas A-side rotary butt joint 321A and discharged to the regeneration gas treatment device 9 via the coaxial rotary joint 323A.

[0035] The regeneration gas heats and regenerates the treatment agents in the regeneration treatment units, while at the same time recovering the heat absorbed by the treatment agents in the heat recovery treatment units during the regeneration process, cooling the treatment units. The rotary butt joints 321A and 321B on both sides are driven by a controlled power source to connect and switch between the rotary regeneration device 3 and each treatment unit group through separation, rotation, and butt joint operations. The B-side rotary butt joint 321B connects and supports the regeneration gas heater 33, which moves synchronously with the B-side rotary butt joint 321B.

[0036] Example 4 As an improved version of the modular rotary butt joint gas treatment system, a drag reduction valve is added, see Figs. 10 and 14.

[0037] In Example 3, in order to reduce the air resistance of the working gas passing through the regeneration gas branch line connectors 322A and 322B on both sides A and B during the adsorption process and to reduce the airflow imbalance caused by the different lengths of connecting pipes of each processing unit, resistance reduction valves 3223A and 3223B are installed at the inlets and outlets of each processing unit. These valves are controlled to close during the regeneration operation of the corresponding processing unit and open during other periods.

[0038] The drag reduction valves may be individually controlled by the overall control, and two valves corresponding to each processing unit are controlled synchronously as a group to form one control point.

[0039] A better control method for the drag reduction valve is to synchronize the valve opening and closing operation with the mechanical device for the separation-rotation-butt-joint operation of the rotary butt joints 321A and 321B on both sides, thus controlling the drag reduction valve without adding a separate control point. A specific implementation of this control method will be described in detail in the following examples.

[0040] Example 5 As an improvement of the modular rotary butt-joint gas treatment device shown in Example 4, upgraded regeneration and upgraded heat recovery functions are realized, and the cooling effect is prioritized. See Figures 11, 12A, 12B, 13-14, 15A, 15B, and 16.

[0041] The regeneration processing unit group and the heat recovery processing unit group each have two processing units. Between the rotary butt joints 321A and 321B on both sides, an expandable connecting pipe 3224 is provided that rotates synchronously with the joints. A bellows-type expansion joint or a sealed expansion bushing can be used for the expansion and contraction of the connecting pipe 3224. See Figures 11, 13 and 14.

[0042] Here, a method for controlling the drag reduction valves 3223A and 3223B will be specifically described with reference to Figures 15A, 15B and 16.

[0043] In this embodiment, each step of the regeneration process involves four processing units, a total of eight drag reduction valves, which must complete their closing operations simultaneously when the rotary butt joints 321A, 321B are butted against the corresponding butt joint openings of the butt joint disks 3221A, 3221B.

[0044] In this embodiment, a single power transmission line 3225 is used as a mechanical transmission device to synchronize the opening and closing movements of the drag reduction valves 3223A, 3223B with the mechanical device for the separation-rotation-butt-joint movements of the rotary butt joints 321A, 321B on both sides. The opening and closing movements of the drag reduction valve itself are performed by a T-shaped rocker arm 3226, and a planar hinge-type four-bar linkage mechanism consisting of another rocker arm 3227, link 3228, and rack 3239 converts the pulling movement transmitted from the power transmission line into the rotational movement of the drag reduction valve, forming a multiplying transmission mechanism that functions when the valve is closed at the dead center, thereby pressurizing and sealing the valve. Alternatively, the transmission function of the power transmission line 3225 may be realized by other conventional mechanical transmission methods, such as links, wires, or transmission flexible shafts. Here, the rack 3239 is shown with two ground-connected surfaces.

[0045] 16, more specifically, the pivot point connecting the T-shaped rocker arms of the drag reduction valve is O2, and O2 is provided with a return spring 32291, while the pivot point of rocker arm 3227 is O1, and O1 is also provided with a return spring 32292. Link 3228 is connected to the two rocker arms by two revolute pairs, and the two pivot points O1 and O2 form the rack of the planar hinge four-bar linkage. The curve O1AB indicates the valve is in the open state, and the straight line O1A'B' indicates the planar hinge four-bar linkage is in the dead center state, and the valve is in the force-closed state.

[0046] Example 6 Another embodiment of the modular rotary butt-joint gas treatment system shown in Example 5 employs a regenerative depth-first mode or full forward flow mode, and is shown in FIG.

[0047] In Example 5, by adjusting the connection method of the connecting pipe 3224, which is installed between the rotating butt joints 321A and 321B on both sides and rotates synchronously with them, the flow direction of the regeneration gas in the regeneration processing unit group and the heat recovery processing unit group becomes the same.

[0048] The modular rotary butt-joint gas treatment device of this embodiment has significant technical advantages, particularly when treating gases containing high concentrations of VOCs. The device can achieve upgraded regeneration and upgraded heat recovery functions, further increasing the concentration rate of exhaust gas and further reducing the consumption of regeneration heat energy. This configuration ensures that the regeneration gas is at a low temperature when it is discharged from the gas treatment device and enters the RTO device.

[0049] Example 7 As an improvement to the modular rotary butt-joint gas treatment device shown in Example 6, a function of utilizing the waste heat of the RTO as a heat source for the regeneration gas is added, see FIG.

[0050] In Example 5, another coaxial rotary joint 323B is added to side B of the device, and the regeneration gas preheated by the heat recovery processing unit group is introduced into the RTO through two pipes. The regeneration gas is heated using heat generated by the RTO's thermal decomposition of the regeneration gas, other than the heat used to maintain the RTO's own thermal equilibrium, and then the regeneration gas is sent to the regeneration processing unit group through the pipes.

Claims

1. The reactor comprises a housing, a working gas inlet, a working gas outlet, a plurality of treatment units, and a set of rotary regenerators, the treatment units being small fixed-bed treatment vessels, and all the treatment units being arranged in a rectangular array and connected by a support and connection structure to form a sealed treatment core, so that the working gas entering the housing through the working gas inlet passes through the treatment units in the treatment core and reaches the working gas outlet; The rotary regeneration device comprises a regeneration gas supply device, a regeneration gas heating device, and a rotary butt welding device; In the regeneration process, the regeneration gas from the regeneration gas supply device heats and regenerates the treatment agent in the regeneration treatment unit group including at least one of the treatment units, and simultaneously recovers the heat absorbed by the treatment agent in the heat recovery treatment unit group including at least one of the treatment units during the regeneration process, thereby cooling the treatment unit group; The gas treatment device is characterized in that the regeneration gas heating device is fitted into the rotary butt welding device, and the rotary regeneration device is connected and switched to each treatment unit group by separation, rotation, and butt welding operations driven by a controlled power.

2. 2. The gas treatment device according to claim 1, wherein the positions of the inlets and exhaust ports of the treatment units are set so that the inlets and exhaust ports of all the treatment units are uniformly distributed within two circular loci, and the regeneration treatment unit group and the heat recovery treatment unit group each have only one treatment unit.

3. 3. The gas treatment apparatus according to claim 2, wherein the casings of all the treatment units, including the intake and exhaust ports, are installed to have the same configuration.

4. 4. The gas treatment device according to claim 3, wherein the treatment units are six in number and arranged in a 2 column x 3 row format, and the upside-down arrangement allows casings of the same configuration to be converted between different shapes at different positions.

5. 4. The gas treatment device according to claim 3, wherein the treatment units are eight in number and arranged in a 2 column x 4 row format, and are rotated in three mutually orthogonal directions, i.e., up and down, left and right, and front and back, so that casings of the same configuration can be converted between different shapes at different positions.

6. 2. The gas treatment device according to claim 1, wherein the rotary butt welding device comprises a regeneration gas A-side rotary butt joint, a treatment unit inlet / outlet port conversion device, and a regeneration gas B-side rotary butt joint, and the treatment unit inlet / outlet port conversion device serves to connect the inlets and outlets of the treatment units arranged in a substantially rectangular array within two uniformly arranged circular loci corresponding to the regeneration gas A-side rotary butt joint and the regeneration gas B-side rotary butt joint, respectively.

7. 7. The gas treatment apparatus according to claim 6, wherein the inlet / outlet port conversion device of the treatment unit is a regeneration gas A-side branch line connection device and a regeneration gas B-side branch line connection device.

8. 8. The gas treatment apparatus according to claim 7, wherein each of the regeneration treatment unit group and the heat recovery treatment unit group includes only one treatment unit.

9. 8. The gas treatment apparatus according to claim 7, wherein each of the regeneration treatment unit group and the heat recovery treatment unit group includes one or two of the treatment units.

10. 8. The gas treatment device according to claim 7, wherein resistance relief valves are provided at both ends of the treatment unit.

11. 11. The gas treatment device according to claim 10, wherein the opening and closing operations of the drag reduction valves are controlled in a group synchronized manner by the rotary butt welding device.

12. The gas treatment device according to claim 11, wherein the resistance reducing valve is opened and closed by a planar hinge type four-bar link mechanism.

13. 11. The gas treatment device according to claim 10, wherein a full forward flow regeneration or both cooling and regeneration are realized by connecting pipes connected to the A side and the B side.

14. 14. The gas treatment device according to claim 1, wherein the treatment unit is installed in a rectangular parallelepiped shape, the treatment agent is in the form of a granule, and the space within the treatment unit is divided into three parts from top to bottom by two layers of sieve plates: an upper gas passage, a filler chamber, and a lower gas passage, the filler chamber is filled with a filler, and the working gas passes through the filler chamber from bottom to top during treatment operation, and the working gas passes through the filler chamber from top to bottom during regeneration operation.

15. The gas treatment device according to any one of claims 1 to 13, characterized in that the regeneration gas is heated and transferred via a pipeline into a surrounding RTO device for treating the regeneration gas.

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