High temperature bag filter heat exchange device and working method thereof

Abstract

The present invention relates to a high-temperature bag filter heat exchange device and a working method thereof, comprising: a flow control tube, wherein an air inlet pipe is arranged on one side of the flow control tube, and at least two groups of connecting tubes are arranged on the other side of the flow control tube, and the multiple groups of connecting tubes are arranged in parallel; a driving mechanism, wherein the driving mechanism comprises a crankshaft rotatably arranged inside the flow control tube along the length direction of the flow control tube, and the crankshaft is provided with a crank corresponding to the position and number of the connecting tubes. During the rotation of the crankshaft, the present invention enables the crank to drive a movable hammer to be located at different positions of the corresponding connecting tubes, thereby connecting or disconnecting multiple groups of heat exchange chambers alternately, changing the gas in the flow control tube to enter different heat exchange chambers for heat exchange, so that the high-temperature gas can pass through each group of heat exchange chambers smoothly and slowly, so as to ensure that the high-temperature gas and the low-temperature energy medium in the heat exchange chamber are fully heat exchanged, thereby improving the heat exchange effect of the high-temperature gas.

Description

Technical Field

[0001] The present invention relates to the technical field of heat exchange devices, and in particular to a high-temperature bag filter heat exchange device and a working method thereof. Background Art

[0002] Titanium dioxide after calcination or surface treatment is all aggregates or sintered products of varying sizes. It must be crushed to the original basic raw material size to fully reflect its optical properties and pigment performance. At present, both domestic and foreign countries use medium and high pressure steam air flow mills as the final crushing equipment for titanium dioxide. The exhaust steam at the outlet of the steam powder mill is about 200°C. Since it contains dust and non-condensable gases, it is generally completely discharged after being filtered by a high-temperature bag filter. Therefore, the gas also has a high temperature when it is discharged, resulting in a large waste of energy. Summary of the invention

[0003] In view of the shortcomings of the prior art, the present invention provides a high-temperature bag filter heat exchange device and a working method thereof. The specific technical scheme is as follows:

[0004] High temperature bag filter heat exchange device, including:

[0005] A flow control pipe, wherein an air inlet pipe is arranged on one side of the flow control pipe, and at least two groups of connecting pipes are arranged on the other side of the flow control pipe, and the multiple groups of connecting pipes are arranged in parallel;

[0006] A driving mechanism, the driving mechanism comprising a crankshaft rotatably arranged inside the flow control tube along the length direction of the flow control tube, the crankshaft is provided with cranks corresponding to the position and number of the connecting tubes, the cranks at the head and tail ends of the crankshaft are arranged symmetrically with respect to the radial direction of the crankshaft at 180 degrees, and a plurality of groups of the cranks located between the head and tail ends are distributed on the crankshaft at equal angles in sequence along the axial direction of the crankshaft;

[0007] A pressing mechanism is arranged on the crank, and the crank drives the pressing mechanism to move back and forth along the length direction of the connecting pipe;

[0008] A blocking mechanism, the blocking mechanism comprising a sealing member and a valve seat fixedly arranged inside the connecting pipe, the valve seat being provided with a plurality of through holes, and the pressing mechanism driving the sealing member to move so as to control the opening or closing of the through holes;

[0009] The heat exchange chamber is arranged at one end of the connecting pipe away from the flow control pipe. The heat exchange chamber corresponds to the connecting pipe one by one. The on-off state of the connecting pipe and the heat exchange chamber is controlled by the blocking mechanism in the corresponding connecting pipe.

[0010] As an improvement of the above technical solution, the driving mechanism also includes a driving component arranged at the end of the crankshaft, one end of the crankshaft passes through the flow control tube and extends to the outside of the flow control tube, the end of the crankshaft extending to the outside of the flow control tube is provided with a driving component, the driving component includes a motor arranged on the flow control tube, a driving wheel is provided at the output end of the motor, and a driven wheel is fixedly provided at the end of the crankshaft extending to the outside of the flow control tube, and the driving wheel is meshingly connected with the driven wheel.

[0011] As an improvement of the above technical solution, the pressing mechanism includes a fixed sleeve rotatably set on the crank, a connecting rod is set on the fixed sleeve, the end of the connecting rod away from the fixed sleeve extends to the inside of the connecting pipe, and a moving hammer is rotatably set on the end of the connecting rod located inside the connecting pipe. When the moving hammer collides with the sealing member, the corresponding through hole opens, so that the corresponding connecting pipe and the heat exchange chamber are in a connected state. When the moving hammer is disengaged from the sealing member, the corresponding through hole is closed, so that the corresponding connecting pipe and the heat exchange chamber are in a disconnected state.

[0012] As an improvement of the above technical solution, the sealing member includes a movable plate slidably arranged inside the connecting tube, a spring is arranged between the movable plate and the valve seat, a connecting rod is arranged on the side wall of the movable plate, an end of the connecting rod away from the movable plate passes through the valve seat and extends to the outside of the valve seat, and a sealing plug for sealing the through hole is arranged at a part of the connecting rod extending to the outside of the valve seat.

[0013] As an improvement of the above technical solution, the size of the movable plate is adapted to the cross-section of the connecting tube, and the seal also includes movable tubes corresponding to the positions and numbers of the through holes, and the movable tubes penetrate the movable plate and extend into the corresponding through holes.

[0014] As an improvement of the above technical solution, the valve seat further includes a sealing groove matched with the sealing plug, the sealing groove is connected with the plurality of through holes, and the sealing groove is arranged at an end away from the movable plate.

[0015] As an improvement of the above technical solution, a liquid inlet pipe main pipe and a liquid outlet pipe main pipe for transporting low-temperature energy media are arranged inside the heat exchange chamber, and multiple groups of heat exchange units formed in parallel are arranged between the liquid inlet pipe main pipe and the liquid outlet pipe main pipe. The heat exchange unit includes a liquid inlet pipe branch pipe and a liquid outlet pipe branch pipe for transporting low-temperature energy media, and multiple groups of serpentine heat exchange tubes are arranged between the liquid inlet pipe branch pipe and the liquid outlet pipe branch pipe.

[0016] The working method of the high-temperature bag filter heat exchange device adopts the high-temperature bag filter heat exchange device described above, and comprises the following steps:

[0017] S1, transporting the high-temperature gas filtered in the high-temperature bag filter to the flow control pipe through the air inlet pipe, and dividing the high-temperature gas into different heat exchange chambers in the flow control pipe;

[0018] S2, starting the driving assembly, wherein the driving assembly drives the plurality of cranks to rotate through the crankshaft, and the cranks drive the pressing mechanism to reciprocate in the corresponding connecting pipe;

[0019] S3. During the movement of the connecting pipe, when the pressing mechanism contacts the sealing member, the sealing member is pushed to move until the through hole is opened, so that the corresponding connecting pipe is connected with the heat exchange chamber, and the gas in the flow control pipe enters the corresponding heat exchange chamber. When the pressing mechanism is disengaged from the sealing member, the sealing member returns to its initial position, seals the through hole, and disconnects the corresponding connecting pipe from the heat exchange chamber. By adjusting the positions of the multiple groups of pressing mechanisms in the corresponding connecting pipes, the gas in the flow control pipe is changed to enter different heat exchange chambers for heat exchange.

[0020] Beneficial effects of the present invention:

[0021] During the rotation of the crankshaft, the crank drives the movable hammer to be located at different positions of the corresponding connecting pipe, so that multiple groups of heat exchange chambers are alternately connected or disconnected, and the gas in the flow control tube is changed to enter different heat exchange chambers for heat exchange, so that the high-temperature gas can pass through each group of heat exchange chambers smoothly and slowly to ensure sufficient heat exchange between the high-temperature gas and the low-temperature energy medium in the heat exchange chamber, thereby improving the heat exchange effect of the high-temperature gas. In addition, since multiple heat exchange chambers work alternately, the heat exchange device can also be guaranteed to work continuously, effectively avoiding the problem of shutdown of the heat exchange device due to blockage. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 A top view of the overall structure of the present invention;

[0023] Figure 2 It is a structural schematic diagram of the heat exchange chamber in the present invention;

[0024] Figure 3 For the present invention Figure 1 Enlarged structural diagram of point A in the middle

[0025] Figure 4 For the present invention Figure 1 Enlarged structural diagram at B in the middle.

[0026] Figure numerals: 1. flow control tube; 11. air intake pipe; 12. connecting pipe; 2. crankshaft; 21. crank; 3. drive assembly; 4. fixed sleeve; 41. connecting rod; 42. movable hammer; 5. valve seat; 51. through hole; 52. sealing groove; 6. heat exchange chamber; 61. liquid inlet pipe main pipe; 62. liquid outlet pipe main pipe; 63. heat exchange unit; 631. liquid outlet pipe branch pipe; 632. heat exchange pipe; 633. liquid inlet pipe branch pipe; 7. movable plate; 71. spring; 72. movable pipe; 73. connecting rod; 74. sealing plug. DETAILED DESCRIPTION

[0027] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments.

[0028] Embodiment 1

[0029] The high-temperature bag filter heat exchange device comprises: a flow control tube 1 and a driving mechanism, wherein one side of the flow control tube 1 is connected to an air inlet pipe 11, and the other side of the flow control tube 1 is connected to at least two groups of connecting tubes 12, wherein the multiple groups of connecting tubes 12 are arranged in parallel, and the connecting tubes 12 are vertically distributed with the flow control tube 1, and the gas enters from the air inlet pipe 11 of the flow control tube 1 and is then transported to the multiple groups of connecting tubes 12;

[0030] The driving mechanism comprises a crankshaft 2 which is rotatably arranged inside the flow control tube 1 along the length direction of the flow control tube 1, and the crankshaft 2 is provided with cranks 21 corresponding to the position and number of the connecting tube 12, and the number of the cranks 21 is consistent with the connecting tube, and the cranks 21 located at the head and tail ends of the crankshaft 2 are arranged symmetrically with respect to the radial direction of the crankshaft 2 at 180°, and the multiple groups of the cranks 21 located between the head and tail ends are distributed on the crankshaft 2 at equal angles in sequence along the axial direction of the crankshaft 2;

[0031] A pressing mechanism is disposed on the crank 21, and the crank 21 drives the pressing mechanism to reciprocate along the length direction of the connecting pipe 12;

[0032] A blocking mechanism, the blocking mechanism comprises a sealing member and a valve seat 5 fixedly arranged inside the connecting pipe 12, the valve seat 5 is provided with a plurality of through holes 51, and the pressing mechanism drives the sealing member to move to control the through holes 51 to be opened or closed;

[0033] The heat exchange chamber 6 is arranged at one end of the connecting pipe 12 away from the flow control pipe 1 . The heat exchange chamber 6 corresponds to the connecting pipe 12 one by one. The on-off state of the connecting pipe 12 and the heat exchange chamber 6 is controlled by the blocking mechanism in the corresponding connecting pipe 12 .

[0034] The gas is transported to the heat exchange chamber 6, and the waste heat in the exhaust steam can be utilized through the low-temperature energy medium in the heat exchange chamber 6. Specifically, the high-temperature gas filtered in the high-temperature bag filter is transported to the flow control tube 1 through the intake pipe 11, and then the drive component 3 is started. The drive component 3 drives the multiple groups of cranks 21 to rotate through the crankshaft 2. The cranks 21 drive the pressing mechanism to reciprocate in the corresponding connecting pipe 12. During the movement of the connecting pipe 12, when the pressing mechanism conflicts with the sealing member, the sealing member is pushed to move straight. When the through hole 51 is opened, the corresponding connecting pipe 12 is connected to the heat exchange chamber 6, and the gas in the flow control tube 1 enters the corresponding heat exchange chamber 6. When the pressing mechanism is disengaged from the sealing member, the sealing member returns to the initial position, and the through hole 51 is sealed, so that the corresponding connecting pipe 12 is disconnected from the heat exchange chamber 6. Since the cranks at the first and last ends of the crankshaft are arranged symmetrically with respect to the radial direction of the crankshaft 2 at 180°, the connecting pipes 12 corresponding to the cranks 21 at the first and last ends of the crankshaft 2, one group of the connecting pipes 12 is connected to the heat exchange chamber 6, refer to Figure 3 , the other group of connecting pipes 12 and the heat exchange chamber 6 are disconnected, refer to Figure 4 At the same time, the multiple groups of cranks 21 located between the head and tail ends are distributed on the crankshaft 2 at equal angles in the axial sequence of the crankshaft 2. During the rotation of the crankshaft 2, the crank 21 drives the movable hammer 42 to be located at different positions of the corresponding connecting pipe 12, so that multiple groups of heat exchange chambers 6 are alternately connected or disconnected, and the gas in the flow control pipe 1 is changed to enter different heat exchange chambers 6 for heat exchange, so that the material can pass through each group of heat exchange chambers 6 smoothly and slowly to ensure that the high-temperature gas and the low-temperature energy medium in the heat exchange chamber 6 are fully heat exchanged, thereby improving the heat exchange effect of the high-temperature gas. In addition, since the multiple heat exchange chambers 6 work alternately, the heat exchange device can also be guaranteed to work continuously, effectively avoiding the problem of the heat exchange device shutting down due to blockage.

[0035] In one embodiment, reference Figure 1 The driving mechanism also includes a driving component arranged at the end of the crankshaft 2, one end of the crankshaft 2 passes through the flow control tube 1 and extends to the outside of the flow control tube 1, and the end of the crankshaft 2 extending to the outside of the flow control tube 1 is provided with a driving component 3, and the driving component 3 includes a motor arranged on the flow control tube 1, and a driving wheel is provided at the output end of the motor, and a driven wheel is fixedly provided at the end of the crankshaft 2 extending to the outside of the flow control tube 1, and the driving wheel is meshed and connected with the driven wheel, the motor drives the driving wheel to rotate, the driving wheel drives the driven wheel to rotate, and the driven wheel drives the crankshaft 2 to rotate.

[0036] In order to prevent the residual fine particles in the gas from accumulating and clogging in the connecting pipe 12, refer to Figure 1The pressing mechanism includes a fixed sleeve 4 rotatably arranged on the crank 21, and a connecting rod 41 is arranged on the fixed sleeve 4. One end of the connecting rod 41 away from the fixed sleeve 4 extends to the inside of the connecting pipe 12, and a moving hammer 42 is rotatably arranged on the end of the connecting rod 41 located inside the connecting pipe 12. When the moving hammer 42 contacts the sealing member, the corresponding through hole 51 is opened, so that the corresponding connecting pipe 12 and the heat exchange chamber 6 are in a connected state. When the moving hammer 42 is separated from the sealing member, the corresponding through hole 51 is closed, so that the corresponding connecting pipe 12 and the heat exchange chamber 6 are in a disconnected state. The crank drives the connecting rod 41 to move back and forth in the connecting pipe 12 through the fixed sleeve 4, and the connecting rod 41 drives the moving hammer 42 to contact the moving plate 7. On the one hand, the moving plate 7 is driven to move by the moving hammer 42 to control the opening of the through hole 51. On the other hand, in the process of the moving hammer 42 contacting the moving plate 7, knocking can be formed to achieve a vibration effect. The vibration force can be transmitted to the connecting pipe 12 through the moving plate 7 to make the connecting pipe 12 vibrate, thereby avoiding the accumulation and blockage of particulate matter in the gas when the connecting pipe 12 is disconnected from the heat exchange chamber 6, thereby affecting the subsequent heat exchange effect. When the moving hammer 42 is separated from the moving plate 7, the through hole 51 is sealed, wherein the two sides of the moving hammer 42 are slidably connected to the inner wall of the connecting pipe 12 to control the moving direction of the moving hammer 42.

[0037] In order to enable the movable plate 7 to return to the initial position after being pushed by the movable hammer 42 and complete the closing of the through hole 51, refer to Figure 3 and Figure 4 The sealing member includes a movable plate 7 which is slidably arranged inside the connecting pipe 12, a spring 71 is arranged between the movable plate 7 and the valve seat 5, and a connecting rod 73 is arranged on the side wall of the movable plate 7. The end of the connecting rod 73 away from the movable plate 7 passes through the valve seat 5 and extends to the outside of the valve seat 5. The connecting rod 73 extends to the outside of the valve seat 5 and is provided with a sealing plug 74 for sealing the through hole 51. When the movable hammer 42 conflicts with the movable plate 7, the movable plate 7 moves, the spring 71 is compressed, and the movable plate 7 drives the sealing plug 74 to move toward the heat exchange chamber 6 through the connecting rod 73, so that the through hole 51 is opened. When the movable hammer 42 is separated from the movable plate 7, the movable plate 7 can be pushed to return to its initial position under the action of the restoring elastic force of the spring 71, and the movable plate 7 moves toward the flow control tube 1 through the connecting rod 73, so that the through hole 51 is closed, wherein a damping buffer is arranged in the spring 71 and between the movable plate 7 and the valve seat 5.

[0038] In order to prevent the gas from exerting an impact force on the spring 71 along the radial direction of the connecting pipe 12, refer to Figure 3 and Figure 4The size of the movable plate 7 is adapted to the cross-section of the connecting tube 12. The sealing member further comprises a movable tube 72 corresponding to the position and number of the through-holes 51. The movable tube 72 penetrates the movable plate 7 and extends into the corresponding through-holes 51. The gas can be transported to the through-holes 51 through the movable tube 72, thereby preventing the gas from impacting the spring 71 along the radial direction of the connecting tube 12 during the movement of the movable plate 7.

[0039] In order to improve the sealing performance between the sealing plug 74 and the valve seat 5, refer to Figure 3 and Figure 4 The valve seat 5 also includes a sealing groove 52 adapted to the sealing plug 74, the sealing groove 52 is connected to the plurality of through holes 51, and the sealing groove 52 is arranged at an end away from the movable plate 7. The shape of the sealing plug is adapted to the shape of the sealing groove, and is a bowl-shaped structure. On the one hand, the fitting area is increased, thereby improving the sealing effect, and on the other hand, the flow guidance effect is improved.

[0040] In one embodiment, reference Figure 2 The heat exchange chamber 6 is provided with a main inlet pipe 61 and a main outlet pipe 62 for conveying low-temperature energy medium. A plurality of heat exchange units 63 connected in parallel are arranged between the main inlet pipe 61 and the main outlet pipe 62. The heat exchange unit 63 includes a branch inlet pipe 633 and a branch outlet pipe 631 for conveying low-temperature energy medium. A plurality of serpentine heat exchange pipes 632 are arranged between the branch inlet pipe 633 and the branch outlet pipe 631. The medium is transported from the liquid inlet pipe main pipe 61 to the liquid inlet pipe branch pipes 633 corresponding to the multiple groups of heat exchange units 63, and then transported from the liquid inlet pipe branch pipes 633 to the multiple groups of serpentine heat exchange tubes 632. The low-temperature energy medium in the multiple groups of serpentine heat exchange tubes 632 is then transported from the liquid outlet pipe branch pipes 631 to the liquid outlet pipe main pipe 62 to form a low-temperature energy medium transportation channel, and finally flows out of the heat exchange chamber, wherein the transportation direction of the low-temperature energy medium in the heat exchange tube 632 is opposite to the flow direction of the gas in the heat exchange chamber 6.

[0041] Embodiment 2

[0042] In order to cooperate with the first embodiment, a working method of a high-temperature bag filter heat exchange device is provided, using any one of the high-temperature bag filter heat exchange devices in the first embodiment, including the following steps:

[0043] S1, the high-temperature gas filtered in the high-temperature bag filter is transported to the flow control pipe 1 through the air inlet pipe 11, and is divided into different heat exchange chambers 6 in the flow control pipe 1;

[0044] S2, start the driving assembly, the driving assembly drives the plurality of cranks 21 to rotate through the crankshaft 2, and the cranks 21 drive the pressing mechanism to reciprocate in the corresponding connecting pipe 12;

[0045] S3. During the movement of the connecting tube 12, when the pressing mechanism contacts the sealing member, the sealing member is pushed to move until the through hole 51 is opened, so that the corresponding connecting tube 12 is connected with the heat exchange chamber 6, and the gas in the flow control tube 1 enters the corresponding heat exchange chamber 6. When the pressing mechanism is disengaged from the sealing member, the sealing member returns to its initial position, seals the through hole 51, and disconnects the corresponding connecting tube 12 from the heat exchange chamber 6. By adjusting the positions of the multiple groups of pressing mechanisms in the corresponding connecting tubes 12, the gas in the flow control tube 1 is changed to enter different heat exchange chambers 6 for heat exchange.

[0046] During the rotation of the crankshaft 2, the crank 21 drives the pressing mechanism to move back and forth in the connecting pipe, so that its end can be located at different positions of the corresponding connecting pipe 12, so that multiple groups of heat exchange chambers 6 are alternately connected or disconnected, and the gas in the flow control tube 1 is changed to enter different heat exchange chambers 6 for heat exchange, so that the gas can pass through each group of heat exchange chambers 6 smoothly and slowly, so as to ensure sufficient heat exchange between the high-temperature gas and the low-temperature energy medium in the heat exchange chamber 6, thereby improving the heat exchange effect.

[0047] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention.

Claims

1. High temperature bag filter heat exchange device, characterized in that: include: A flow control tube (1), wherein an air inlet tube (11) is arranged on one side of the flow control tube (1), and at least two groups of connecting tubes (12) are arranged on the other side of the flow control tube (1), and the multiple groups of connecting tubes (12) are arranged in parallel; A driving mechanism, the driving mechanism comprising a crankshaft (2) rotatably arranged inside the flow control tube (1) along the length direction of the flow control tube (1), the crankshaft (2) being provided with cranks (21) corresponding to the position and number of the connecting tube (12), the cranks (21) located at the head and tail ends of the crankshaft (2) being arranged symmetrically at 180° with respect to the radial direction of the crankshaft (2), and a plurality of groups of the cranks (21) located between the head and tail ends being distributed on the crankshaft (2) at equal angular intervals in sequence along the axial direction of the crankshaft (2); A pressing mechanism is arranged on the crank (21), and the crank (21) drives the pressing mechanism to move back and forth along the length direction of the connecting pipe (12); A blocking mechanism, the blocking mechanism comprising a sealing member and a valve seat (5) fixedly arranged inside the connecting pipe (12), the valve seat (5) being provided with a plurality of groups of through holes (51), and the pressing mechanism driving the sealing member to move so as to control the opening or closing of the through holes (51); The heat exchange chamber (6) is arranged at one end of the connecting pipe (12) away from the flow control pipe (1), the heat exchange chamber (6) and the connecting pipe (12) correspond one to one, and the on-off state of the connecting pipe (12) and the heat exchange chamber (6) is controlled by a blocking mechanism in the corresponding connecting pipe (12).

2. The high temperature bag filter heat exchange device according to claim 1, characterized in that: The driving mechanism further comprises a driving assembly (3) arranged at the end of the crankshaft (2); one end of the crankshaft (2) passes through the flow control tube (1) and extends to the outside of the flow control tube (1); the end of the crankshaft (2) extending to the outside of the flow control tube (1) is provided with the driving assembly (3); the driving assembly (3) comprises a motor arranged on the flow control tube; a driving wheel is arranged at the output end of the motor; a driven wheel is fixedly arranged at the end of the crankshaft (2) extending to the outside of the flow control tube (1); the driving wheel is meshingly connected with the driven wheel.

3. The high temperature bag filter heat exchange device according to claim 2, characterized in that: The pressing mechanism comprises a fixing sleeve (4) rotatably arranged on the crank (21), a connecting rod (41) being arranged on the fixing sleeve (4), an end of the connecting rod (41) away from the fixing sleeve (4) extending into the interior of the connecting tube (12), and a moving hammer (42) being rotatably arranged on the end of the connecting rod (41) located inside the connecting tube (12), when the moving hammer (42) contacts the sealing member, the corresponding through hole (51) is opened, so that the corresponding connecting tube (12) and the heat exchange chamber (6) are in a connected state, and when the moving hammer (42) is separated from the sealing member, the corresponding through hole (51) is closed, so that the corresponding connecting tube (12) and the heat exchange chamber (6) are in a disconnected state.

4. The high temperature bag filter heat exchange device according to claim 2, characterized in that: The sealing member comprises a movable plate (7) slidably arranged inside the connecting pipe (12), a spring (71) being arranged between the movable plate (7) and the valve seat (5), a connecting rod (73) being arranged on the side wall of the movable plate (7), an end of the connecting rod (73) away from the movable plate (7) passing through the valve seat (5) and extending to the outside of the valve seat (5), and a sealing plug (74) for sealing the through hole (51) being arranged at a portion of the connecting rod (73) extending to the outside of the valve seat (5).

5. The high temperature bag filter heat exchange device according to claim 4, characterized in that: The size of the movable plate (7) is adapted to the cross-section of the connecting tube (12), and the sealing member further comprises movable tubes (72) corresponding to the positions and numbers of the through holes (51), the movable tubes (72) penetrating the movable plate (7) and extending into the corresponding through holes (51).

6. The high temperature bag filter heat exchange device according to claim 4, characterized in that: The valve seat (5) further comprises a sealing groove (52) adapted to the sealing plug (74), the sealing groove (52) being in communication with the plurality of groups of through holes (51), and the sealing groove (52) being arranged at an end away from the movable plate (7).

7. The high temperature bag filter heat exchange device according to claim 1, characterized in that: The heat exchange chamber (6) is provided with a liquid inlet pipe main pipe (61) and a liquid outlet pipe main pipe (62) for conveying low-temperature energy media, and a plurality of groups of heat exchange units (63) connected in parallel are arranged between the liquid inlet pipe main pipe (61) and the liquid outlet pipe main pipe (62). The heat exchange unit (63) comprises a liquid inlet pipe branch pipe (633) and a liquid outlet pipe branch pipe (631) for conveying low-temperature energy media, and a plurality of groups of serpentine heat exchange pipes (632) are arranged between the liquid inlet pipe branch pipe (633) and the liquid outlet pipe branch pipe (631).

8. A method for operating a high-temperature bag filter heat exchange device, using the high-temperature bag filter heat exchange device as claimed in claim 2, characterized in that: S1, transporting the high-temperature gas filtered in the high-temperature bag filter to the flow control pipe (1) through the air inlet pipe (11), and dividing the high-temperature gas in the flow control pipe (1) into different heat exchange chambers (6); S2, starting the driving assembly (3), wherein the driving assembly (3) drives the plurality of cranks (21) to rotate via the crankshaft (2), and the cranks (21) drive the pressing mechanism to reciprocate in the corresponding connecting pipe (12); S3. During the movement of the connecting tube (12), when the pressing mechanism contacts the sealing member, the sealing member is pushed to move until the through hole (51) is opened, so that the corresponding connecting tube (12) is connected to the heat exchange chamber (6), and the gas in the flow control tube (1) enters the corresponding heat exchange chamber (6). When the pressing mechanism is separated from the sealing member, the sealing member returns to its initial position and seals the through hole (51), so that the corresponding connecting tube (12) is disconnected from the heat exchange chamber (6). By adjusting the positions of the multiple groups of pressing mechanisms in the corresponding connecting tubes (12), the gas in the flow control tube (1) is changed to enter different heat exchange chambers (6) for heat exchange.

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