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 further 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 composed of a plurality of parallel adsorption units and a set of movable hot air regeneration devices. Its positive function is to convert the regeneration process of the regenerative fixed bed adsorber from centralized regeneration requiring high power energy consumption to staged regeneration requiring low power energy consumption, and to fully utilize thermal energy in the regeneration process by recovering the heat absorbed by the adsorbent through two adsorption units connected in series, and recovering the heat in the discharged regeneration gas through heat exchange between gases. The movable regeneration device is composed of a hot air regeneration device and a mechanical moving device. The hot air regeneration device communicates one end of the adsorption unit group consisting of two adsorption units with a regeneration gas supply device and a regeneration gas treatment device, respectively, through a flexible pipe, and this part of the hot air regeneration device is called the IO end, and the other two ends of the adsorption unit group are communicated with a pipe including a gas heating device, and are called the CA end. The regeneration gas from the regeneration gas supply device passes through the two adsorption units of the adsorption unit group in order to reach the regeneration gas treatment device. The mechanical moving device supports the hot air regenerator, and is driven by a controlled power source to achieve connection and switching between the regenerator and each group of adsorption units in turn.

[0003] In fact, in the process of the mechanical movement device achieving the connection and switching between the IO end, the CA end and each suction unit group in sequence, it needs to support the lateral movement, vertical movement and rotation of the IO end and the CA end, and there are at least eight controlled movements on both sides for the connection and separation of the IO end, the CA end and the suction unit, etc. Due to the complexity of these controlled movements and the manufacturing control precision, the manufacturing cost of the equipment remains high. Operational reliability poses a considerable challenge to the manufacturing and operation 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 related 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] The device can also be used to treat organic polluted exhaust gases by catalytic methods at room temperature. When organic polluted exhaust gases pass through the device, non-toxic, harmless or low-toxic substances are generated and discharged by the catalytic action of the catalyst. The catalyst formulation and filling method are the same as or similar to those of the adsorbent, and the catalytic action process is similar to the adsorption process. Pollutants do not generally remain in the catalyst for a long time, but the catalytic pollutants themselves and trace amounts of harmful substances associated with them may cause the catalyst to be deactivated. Regarding such deactivation, the harmful substances can be desorbed from the catalyst by heating, and the original catalytic activity of the catalyst can basically be restored. The process of restoring the catalytic activity by heating the catalyst is similar to the process of restoring the adsorption activity by regenerating the adsorbent, and the two types of treatment processes can be collectively referred to as regeneration. Correspondingly, the catalytic process and adsorption process for polluted gases are collectively referred to as treatment processes. Basically, similar treatment processes can be adopted for the treatment of harmful gases generated by adsorbent regeneration and catalyst regeneration. Herein, the polluted gas is referred to as working gas or working air, and the regenerated or regenerated treated gas is referred to as regenerated gas or regenerated air. [Means for solving the problem]

[0006] A specific technical proposal of the present invention is a gas treatment device comprising a housing, a working gas inlet, a working gas outlet, a plurality of treatment units, and a set of rotary regeneration devices. The treatment units are small fixed bed treatment devices, and all the treatment units are arranged in a rectangular array and connected by a support connection structure to form a sealed treatment core, so that the working gas that enters 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. 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 at the same time, recovers the heat absorbed by the treatment agent in the heat recovery treatment unit group including at least one treatment unit in the regeneration process, and cools the treatment unit group. The rotary butt joint device is fitted with a regeneration gas heating device, and is driven by a controlled power to perform separation, rotation, and butt joint operations to connect and switch between the rotary regeneration device and each treatment unit.

[0007] When realizing the above solution, the intake and exhaust ports of the processing units are set at different positions, 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 achieve synchronous rotation and axial extension and contraction movements through mechanical connection to achieve 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, the treatment agent may be in the form of a granule, and a two-layer sieve plate may divide 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 the processing units are 6 or 8 in number, arranged in a 2-column x 3-row or 2-column x 4-row format, and the casings of the same configuration can be transformed between different positions by rotating in three mutually orthogonal directions, i.e., 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 is saved.

[0010] Meanwhile, a specific technical solution of the present invention is a gas treatment device comprising a housing, a working gas inlet, a working gas outlet, a plurality of treatment units, and a set of rotary regeneration devices. The treatment units correspond to small fixed bed adsorbers, and all the treatment units are arranged in an approximately rectangular array and connected by a support 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 rectangular array here is borrowed from the operation command of a drawing software, in which "approximately" means that the main emphasis here is on the overall arrangement type, and the number of individuals included in each row and each column is not strictly the same, for example, intentionally formed so that the individuals in the middle or the four corners are empty for functional design. The rotary regeneration device is composed of a regeneration gas supply device, a regeneration gas heating device, and a rotary butt joint device. The rotary butt joint device includes a regenerated gas A-side rotary butt joint, a treatment unit intake and exhaust port conversion device, and a regenerated gas B-side rotary butt joint. The treatment unit intake and exhaust port conversion device serves to connect the intake and exhaust ports of the treatment units arranged in a substantially rectangular array to two circular trajectories that are uniformly arranged and correspond to the regenerated gas A-side rotary butt joint and the regenerated gas B-side rotary butt joint, respectively. As a specific solution, one end of a plurality of pipes having different lengths and shapes may be connected to the intake and exhaust end of the treatment unit, and the other end may be opened in sequence in two circular trajectories that correspond to the regenerated gas A and B-side rotary butt joints, respectively. Furthermore, the pipe openings in the two circular trajectories may be connected together by one disk. The rotary butt joints on both sides can rotate synchronously by 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 at the same time 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 joint 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 joint 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 processing unit group includes two or more processing units, the heat utilization efficiency in the regeneration process of the apparatus can be improved, which also plays a certain positive role in the depth of regeneration of the processing agent by the apparatus.

[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, 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, and achieve the effect of full forward flow regeneration or the combination of regeneration and cooling.

[0016] The function of heating the regenerated gas can be transferred via a pipeline to a nearby RTO device that processes the regenerated gas, and when treating polluted gas containing VOCs that have a high calorific value, the excess heat generated by the thermal decomposition of the VOCs can be used to heat the regenerated gas. Effect of the Invention

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

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

[0019] [Figure 1] FIG. 2 is a schematic diagram of the exhaust gas treatment function of a modular matrix type rotary butt joint gas treatment device. [Figure 2A] Schematic diagram of the connection configuration and function of the regeneration lines in a modular matrix type rotary butt-welded gas treatment device, showing two steps. [Figure 2B] Schematic diagram of the connection configuration and function of the regeneration lines in a modular matrix type rotary butt-welded gas treatment device, showing two steps. [Diagram 3] FIG. 1 is a schematic diagram of the configuration of an A-side rotary butt joint 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 joint device in an embodiment having six processing units. [Diagram 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 joint 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 joint apparatus in an embodiment having eight processing units. [Figure 8] FIG. 2 is a schematic diagram of the regenerator line connections of the modular rotary butt joint gas treatment device. [Figure 9A] FIG. 9 is a schematic diagram showing a connection configuration of an A-side regeneration pipeline in the device shown in FIG. 8. [Figure 9B]FIG. 9 is a schematic diagram showing a connection configuration of a B-side regeneration pipeline in the device shown in FIG. 8. [Figure 10] FIG. 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. 11 is a functional schematic diagram of the device shown in FIG. 10, in which upgraded regeneration and upgraded heat recovery functions are provided, and the cooling effect is prioritized. [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 diagram of a perspective configuration of the regeneration gas input / output side of the device shown in FIG. 11. [Figure 14] FIG. 12 is a schematic diagram of a perspective configuration of the regeneration gas heating side of the apparatus 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 actuation of the drag relief valve, illustrating the motion trajectory of the force-close mechanical arrangement of the drag relief valve; FIG. [Figure 16] 1 is a schematic diagram of the open and closed states of the force-closing mechanical configuration of the drag reduction valve. FIG. [Figure 17] FIG. 11 is a functional schematic diagram of the device shown in FIG. 10, in which upgraded regeneration and upgraded heat recovery functions are provided, and the regeneration depth is prioritized. [Figure 18] FIG. 12 is a functional schematic diagram of the device shown in FIG. 11, in which a function of using the waste heat of the RTO as a heat source for regeneration gas is added. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0020] Example 1 Modular matrix type rotary butt joint gas treatment equipment 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 supporting and connecting 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 is configured to include 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 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 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 one coaxial rotary joint 323. The regeneration gas treatment device 9 here belongs to the peripheral equipment of a modular type rotary butt joint gas treatment device, for example, an RTO.

[0023] Here, take the application of adsorption treatment as an example. In the case of adsorption work, the regenerated gas A side rotary butt joint 321A and the regenerated gas B side rotary butt joint 321B are separated from the inlet 211A and the 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 inlet 211A of the treatment unit, and passes through the treatment agent filler layer 212 in the treatment unit 21. The pollutants are retained in the treatment agent, and the cleaned working gas leaves the treatment unit 21, enters the collection box 111B through the outlet 211B, and finally is discharged from the whole device through the working gas outlet 13, completing the adsorption process.

[0024] 2A and 2B, in the case of regeneration, the first treatment unit does not have the function of heat recovery. Starting with the second treatment unit, the regeneration gas enters the heat recovery treatment unit 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, is preheated by the filler 212 in the heat recovery unit, enters the B-side rotary butt joint 321B and the regeneration gas heating device 33 fitted therein through the outlet 211B, enters the regeneration treatment unit again through the working gas outlet 211B, heats and regenerates the treatment agent filler 212 in the regeneration treatment unit, and takes the desorbed pollutants and enters the A-side rotary butt joint 321A again through the inlet 211A, and is discharged to the regeneration gas treatment device 9 through the coaxial rotary joint 323A.

[0025] 3 and 4, the regeneration gas heats and regenerates the treatment agent in the regeneration treatment unit, and at the same time recovers 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 connect and switch between the rotary regeneration device 3 and each treatment unit through separation, rotation, and butt joint operations. The B-side rotary butt joint 321B connects and supports the regeneration gas heating device 33, and the regeneration gas heating device 33 moves synchronously with the B-side rotary butt joint 321B.

[0026] Example 2 Modular matrix type rotary butt joint gas treatment equipment with 8 treatment units

[0027] 5 to 7, the apparatus of this embodiment includes eight processing units 21, and other configurations are similar to 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 and are arranged in a 2 x 4 format, and can be rotated 180 degrees 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 side are labeled as E, F, G, and H, respectively. Processing unit E is transformed into F when rotated 180° on the Y axis, transformed into G when rotated 180° on the Z axis, and transformed into H when rotated 180° on the X axis. The four units on the right side can also be transformed in this manner.

[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 a set of a rotary regenerator 3. The treatment units 21 are small fixed-bed adsorbers, and all 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 path connection device 322A, a regeneration gas B-side branch path connection device 322B, and a regeneration gas B-side rotary butt joint 321B. The rotary butt joints on both sides are connected by a connection shaft 34 and rotate synchronously. The regenerated gas A-side branch line connection device 322A and the regenerated gas B-side branch line connection device 322B each have one butt joint disk 3221A, 3221B, and each butt joint disk is provided with 24 butt joint ports 32211A, 32211B, and each butt joint port is connected to the intake and exhaust ports 211A, 211B of the corresponding treatment unit by each branch line connection pipe 3222A, 3222B. The regenerated gas supply device 31 and the regenerated gas treatment device 9 are connected to the regenerated gas A-side rotary butt joint 321A by one coaxial rotary joint 323. The regenerated gas treatment device 9 here belongs to the peripheral equipment of a modular rotary butt joint gas treatment device, taking an RTO as an example.

[0033] Here, the application of adsorption is taken as an example. In the case of adsorption, the regenerated gas A side rotary butt joint 321A and the regenerated gas B side rotary butt joint 321B are separated from the corresponding butt joint disks 3221A, 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 regenerated gas A side branch path connection device 322A, and passes through the treatment agent filler layer 212 in the treatment unit. The pollutants are retained in the treatment agent, and the cleaned working gas leaves the treatment unit 21, enters the collection box 111B through the regenerated gas B side branch path connection device 322B, and finally is discharged from the whole device through the working gas outlet 13, completing the adsorption process.

[0034] In the case of regeneration operation, 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 path connection device 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 path connection device 322B, passes through the regeneration gas B-side rotary butt joint 321B and the regeneration gas heating device 33 fitted therein, and again enters the regeneration treatment unit group through another connecting pipe in the regeneration gas B-side branch path connection device 322B, where the treatment agent filler 212 in the regeneration treatment unit is heated and regenerated, and then enters again the regeneration gas A-side branch path connection device 322A and the regeneration gas A-side rotary butt joint 321A with the desorbed pollutants, and is discharged to the regeneration gas treatment device 9 via the coaxial rotary joint 323A.

[0035] The regeneration gas heats and regenerates the treatment agent in the regeneration treatment unit group, and at the same time recovers the heat absorbed by the treatment agent in the heat recovery treatment unit group during the regeneration process, cooling the treatment unit group. 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 joining operations. The B-side rotary butt joint 321B connects and supports the regeneration gas heater 33, and the regeneration gas heater 33 moves synchronously with the B-side rotary butt joint 321B.

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

[0037] In the third embodiment, in order to reduce the air resistance when the working gas passes through the regeneration gas branch line connecting devices 322A and 322B on both sides A and B during the adsorption process, and to reduce the airflow imbalance caused by the connection lines of different lengths of each processing unit, the inlet and outlet of each processing unit are provided with resistance reducing valves 3223A and 3223B, which are controlled to be closed 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 be one control point.

[0039] A better control method for the drag reduction valve is to synchronize the opening and closing operation of the valve with the mechanical device for the separation-rotation-butt joint operation of the rotating butt joints 321A and 321B on both sides, thus controlling the drag reduction valve without adding separate control points. 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 are each provided with two processing units. Between the rotating butt joints 321A and 321B on both sides, an expandable connecting pipe 3224 is provided which rotates synchronously with the rotating butt joints 321A and 321B. 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 operation is associated with four processing units, a total of eight drag relief valves, which need to complete the closing operation of the drag relief valves at the same time as the butt joint between the rotary butt joints 321A, 321B and the corresponding butt joint openings of the butt joint disks 3221A, 3221B is completed.

[0044] In this embodiment, a single power transmission line 3225 is used as a mechanical transmission device to synchronize the opening and closing operations of the drag reduction valves 3223A, 3223B with the mechanical device for the separation-rotation-butt joint operation of the rotary butt joints 321A and 321B on both sides. The opening and closing operations of the drag reduction valve itself are performed by a T-shaped rocker arm 3226, and a planar hinged four-joint link mechanism consisting of another rocker arm 3227, a link 3228, and a rack 3239 converts the pulling operation transmitted from the power transmission line into the rotation operation of the drag reduction valve, and forms a multiplier transmission mechanism that functions when the valve is closed by the dead center, so that the valve is pressurized and sealed. Alternatively, the transmission function of the power transmission line 3225 may be realized by other ordinary mechanical transmission methods, such as links, wires, transmission flexible shafts, etc. Here, the rack 3239 is shown with two ground connection surfaces.

[0045] Referring to FIG. 16, more specifically, the pivot point connecting the T-shaped rocker arm of the drag reduction valve is O 2 Next, O 2 A return spring 32291 is provided on the rocker arm 3227, and the rotation fulcrum of the rocker arm 3227 is O 1 Next, O 1 A return spring 32292 is also provided at the link 3228. The link 3228 is connected to the two swinging arms by two rotation pairs, and has two rotation fulcrums O. 1 and O 2 forms the rack of the planar hinged four-bar linkage. Curve O 1 AB indicates that the valve is open, and line O 1 A'B' indicates that the planar hinge type four-bar linkage is at the dead center, and the valve is in the force-closed state.

[0046] Example 6 As another embodiment of the modular rotary butt joint gas treatment device shown in Example 5, employing a regenerative depth-first mode or full forward flow mode, refer to FIG.

[0047] In the fifth embodiment, 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 both of 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 in this embodiment has a particularly significant technical advantage when treating gas containing high concentrations of VOCs components. The device can realize upgraded regeneration and upgraded heat recovery functions, which further increase the concentration rate of exhaust gas and further reduce the consumption of regeneration heat energy. This configuration ensures that the regeneration gas is in a low temperature state 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 the 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 pipelines. The regeneration gas is heated using heat other than the heat for maintaining the thermal equilibrium of the RTO itself, which is generated by the RTO's thermal decomposition of the regeneration gas, and then the regeneration gas is sent to the regeneration processing unit group through the pipelines.

Claims

1. The present invention 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 are 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 regenerator comprises a regenerator gas supply device, a regenerator 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 at the same time 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; A gas treatment device characterized in that the regeneration gas heating device is fitted into the rotary butt joint device, and that the rotary regeneration device is connected and switched to each treatment unit group by separation, rotation, and butt joint operations driven by a controlled power.

2. The gas treatment device according to claim 1, characterized in that 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 of the treatment units.

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. The gas treatment device according to claim 3, wherein the treatment units are six in number and arranged in a form of two columns and three rows, and the upside-down arrangement allows casings of the same configuration to be converted between shapes at different positions.

5. The gas treatment device according to claim 3, characterized in that the treatment units are eight in number, arranged in a form of two columns and four rows, and are rotated in three mutually orthogonal directions, namely up and down, left and right, and front and back, so that a casing of the same configuration can be converted between shapes at different positions.

6. 2. The gas treatment device according to claim 1, wherein the rotary butt joint device comprises a regenerated gas A-side rotary butt joint, a treatment unit intake and exhaust port conversion device, and a regenerated gas B-side rotary butt joint, and the treatment unit intake and exhaust port conversion device serves to connect the intake and exhaust ports of the treatment units arranged in a substantially rectangular array within two uniformly arranged circular loci corresponding to the regenerated gas A-side rotary butt joint and the regenerated gas B-side rotary butt joint, respectively.

7. 7. The gas treatment apparatus according to claim 6, wherein the intake and exhaust 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 both ends of the treatment unit are provided with resistance reducing valves.

11. 11. The gas treatment device of claim 10, wherein the opening and closing of the drag reduction valves is group synchronously controlled by the rotary butt splicing device.

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

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

14. The gas treatment device according to any one of claims 1 to 13, characterized in that the treatment unit is installed in a rectangular parallelepiped shape, the treatment agent is in the form of a granule, and a space within the treatment unit is divided from top to bottom into three parts, namely, an upper gas passage, a filler chamber, and a lower gas passage, by a two-layer sieve plate, the filler chamber is filled with a filler, and during treatment operation, the working gas passes through the filler chamber from bottom to top, and during regeneration operation, the working gas passes through the filler chamber from top to bottom.

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

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