Waste heat recovery system in field of powdered ink production

Abstract

The invention discloses a waste heat recovery system in the field of powdered ink production, and belongs to the technical field of waste heat recovery, the technical scheme is characterized in that the waste heat recovery system comprises a heat exchange box and a heat exchange device, the two sides of the heat exchange box are connected with an input pipe and an output pipe respectively, and a plurality of insertion holes are formed in the top of the heat exchange box; the heat exchange device comprises a mounting plate, a plurality of heat exchange pipes, a water supply structure and a water outlet structure, the heat exchange pipes are all connected with the mounting plate, the heat exchange pipes are selectively inserted into the corresponding insertion holes, the inner walls of the heat exchange pipes are connected with isolation plates, and the isolation plates divide the heat exchange pipes into first spaces and second spaces; a channel for communicating the first space and the second space is formed in the isolation plate, the water supply structure and the water outlet structure are both connected with the mounting plate, the water supply structure is used for communicating with the first space, the water outlet structure is used for communicating with the second space, and when the heat exchange pipe is inserted into the heat exchange box, the mounting plate abuts against the heat exchange box. And the waste heat recovery efficiency is improved.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of waste heat recovery, in particular to a waste heat recovery system in the field of toner production. BACKGROUND

[0002] In the field of industrial production, efficient use of energy has always been a key factor in the development of the industry. With the increasing emphasis on energy saving and emission reduction worldwide, various industries are actively exploring ways to reduce energy consumption and improve energy utilization. In the toner production industry, a large amount of waste heat is generated during the production process. If this waste heat can be effectively recovered and utilized, not only can it reduce the production cost of enterprises, but also can reduce the thermal pollution to the environment, in line with the requirements of green and sustainable development. The scale of toner production is expanding, and the demand for waste heat recovery systems is also growing. Efficient waste heat recovery technology is of great significance to improving the competitiveness of the entire toner production industry.

[0003] In the field of waste heat recovery in toner production, the commonly used technical means for waste heat recovery of high-temperature flue gas is to use a traditional heat exchanger to exchange heat between the waste heat and the cooling liquid, transfer the waste heat to the cooling liquid, and then use the heat in the cooling liquid for other production links.

[0004] However, the traditional heat exchanger is prone to gradually reducing the heat exchange efficiency after a long time of operation. This is because impurities are easily attached to the surface of the heat exchange component during the waste heat transfer process, hindering the effective transfer of heat and affecting the performance of the entire waste heat recovery system. SUMMARY

[0005] In order to effectively recover the waste heat in the field of toner production and improve the waste heat recovery efficiency, the application provides a waste heat recovery system in the field of toner production.

[0006] The waste heat recovery system in the field of toner production provided by the application adopts the following technical scheme: A waste heat recovery system in the field of toner production, comprising a heat exchange box and a heat exchange device, the two sides of the heat exchange box are respectively connected with an input pipe and an output pipe, and a plurality of insertion holes are formed in the top of the heat exchange box; the heat exchange device comprises a mounting plate, a heat exchange pipe, a water feeding structure and a water outlet structure, a plurality of heat exchange pipes are provided and are connected with the mounting plate, the heat exchange pipes can be selectively inserted into the corresponding insertion holes, an isolation plate is connected to the inner wall of the heat exchange pipe, the isolation plate separates the heat exchange pipe into a first space and a second space, a channel communicating the first space and the second space is formed in the isolation plate, the water feeding structure and the water outlet structure are connected with the mounting plate, the water feeding structure is used for communicating with the first space, the water outlet structure is used for communicating with the second space, and the mounting plate abuts against the heat exchange box when the heat exchange pipe is inserted into the heat exchange box.

[0007] By adopting the technical scheme, the input pipe and the output pipe on the two sides of the heat exchange box are used to realize the input and output of flue gas, the jack on the top of the heat exchange box is convenient for the insertion of the heat exchange pipe, the isolation plate and the channel in the heat exchange pipe can make the water flow in the first space and the second space to realize sufficient heat exchange, the water supply structure and the water outlet structure realize the input and output of water, and the abutment of the mounting plate and the heat exchange box can guarantee the stability of the installation of the heat exchange pipe, so that the effective recovery of waste heat in the toner production field is realized. Moreover, when the heat exchange device needs to be replaced, the heat exchange pipe can be pulled out of the jack, the mounting plate is separated from the heat exchange box, then another set of heat exchange device is replaced, the new heat exchange pipe is inserted into the jack, the mounting plate is abutted with the heat exchange box, and the replacement of the heat exchange device is completed, and the heat exchange efficiency is improved.

[0008] Preferably, the heat exchange pipes are divided into a first group and a second group, the plurality of heat exchange pipes in the first group are distributed along a first direction at intervals, the plurality of heat exchange pipes in the second group are distributed along the first direction at intervals, the heat exchange pipes in the first group and the second group are arranged alternately along a second direction, and the heat exchange pipes in the first group and the second group are distributed alternately.

[0009] By adopting the technical scheme, the heat exchange pipes are grouped and distributed in a specific way, the contact area and time of the heat exchange pipes and the waste heat in the heat exchange box are increased, and the waste heat recovery efficiency is improved.

[0010] Preferably, a plurality of sealed cavities are arranged in the heat exchange box, the sealed cavities are communicated with the jack, a sealing structure is arranged in each of the sealed cavities, the sealing structure comprises a first sealing half, a second sealing half and a tightening sleeve, the first sealing half is slidably connected with the side wall of the sealed cavity away from the outside, the second sealing half is slidably connected with the side wall of the sealed cavity away from the outside, the heat exchange pipe passes through between the first sealing half and the second sealing half, the tightening sleeve is sleeved on the heat exchange pipe, the inner diameter of the tightening sleeve gradually decreases from one end to the other end, when the tightening sleeve is sleeved on the first sealing half and the second sealing half, the first sealing half and the second sealing half form a sealing ring and abut with the outer wall of the heat exchange pipe, so as to realize the isolation of the inside of the heat exchange box from the outside.

[0011] By adopting the technical scheme, when the heat exchange pipe is inserted into the jack, the heat exchange pipe passes through between the first sealing half and the second sealing half, at this time, the tightening sleeve is also sleeved on the heat exchange pipe, because the inner diameter of the tightening sleeve gradually decreases from one end to the other end, when the tightening sleeve is sleeved on the first sealing half and the second sealing half, the first sealing half and the second sealing half form a sealing ring and abut with the outer wall of the heat exchange pipe, so as to realize the isolation of the inside of the heat exchange box from the outside, effectively prevent heat loss and foreign matter from entering, and improve the waste heat recovery efficiency.

[0012] Preferably, the heat exchange box is connected with a movable cavity, the sealing cavities are communicated with the movable cavity, the heat exchange box is connected with a control device, the control device comprises a cylinder, a driving rod, control rods and first action rods, the cylinder is connected with the heat exchange box, the driving rod is connected with the cylinder, the control rods are provided in plurality, one end of the control rods is connected with the driving rod, the other end penetrates through the heat exchange box and extends into the movable cavity, each group of heat exchange pipes corresponds to one control rod, each control rod is hingedly connected with a plurality of first action rods, and one end of the first action rods away from the control rods is hingedly connected with the tightening sleeve.

[0013] By adopting the above technical scheme, the sealing cavities are communicated with the movable cavity, the cylinder of the control device drives the driving rod, drives the control rods to move in the movable cavity, and then controls the tightening sleeve through the first action rods, so that the first sealing half and the second sealing half form a sealing ring and abut against the outer wall of the heat exchange pipe, the inside of the heat exchange box is isolated from the outside, the control of the sealing structure is facilitated, and the sealing performance and the use convenience of the waste heat recovery system are improved.

[0014] Preferably, the control device further comprises a lever, a synchronous rod and second action rods, the lever and the synchronous rod are arranged in the movable cavity, the control rods, the lever and the synchronous rod form a control group, each group of heat exchange pipes corresponds to one control group, the middle part of the lever is rotationally connected with the heat exchange box through a rotating shaft, first and second sliding holes are formed in the two ends of the lever, a first sliding block in sliding connection with the lever is arranged in the first sliding hole, the first sliding block is connected with the control rod, a second sliding block in sliding connection with the lever is arranged in the second sliding hole, the second sliding block is connected with the synchronous rod, and each synchronous rod is hingedly connected with a plurality of second action rods, one end of the second action rods away from the synchronous rods is hingedly connected with the tightening sleeve.

[0015] By adopting the above technical scheme, when the control rods act, the first sliding block on the control rods slides in the first sliding hole of the lever, the lever rotates around the rotating shaft, the second sliding block in the second sliding hole of the lever drives the synchronous rod to move, the synchronous rod drives the tightening sleeve to act through the plurality of second action rods, the synchronous control of the sealing structure corresponding to each group of heat exchange pipes is realized, the synchronism and stability of the control of the sealing structure are improved, the inside of the heat exchange box is reliably isolated from the outside, and the waste heat recovery is facilitated.

[0016] Preferably, a fixing device is further arranged, a groove structure is formed in the heat exchange box, a limiting cavity and a through hole are formed in the mounting plate, the through hole is communicated between the outside and the limiting cavity, the through hole is arranged in correspondence with the groove structure, the bottom end of the fixing device is arranged in the groove structure, and when the top end of the fixing device penetrates through the through hole and extends to the limiting cavity, the mounting plate and the heat exchange box are fixed.

[0017] By adopting the technical scheme, in use, the bottom end of the fixing device is placed in the groove structure, the top end of the fixing device passes through the through hole corresponding to the groove structure and extends to the limiting cavity of the mounting plate, the mounting plate and the heat exchange box can be fixed, and the stability of the waste heat recovery system structure is ensured.

[0018] Preferably, the fixing device comprises a driving block, a moving rod, a limiting plate, a first fixing rod, a second fixing rod, a reset spring and a top block, the driving block is connected with the driving rod, and the driving block is selectively inserted into the groove structure; the top end of the moving rod is connected with the limiting plate, the limiting plate is slidingly connected with the heat exchange box, the first end of the first fixing rod and the first end of the second fixing rod are both rotationally connected with the limiting plate, the reset spring is arranged between the first fixing rod and the second fixing rod, one end of the reset spring is connected with the second end of the first fixing rod, and the other end of the reset spring is connected with the second end of the second fixing rod; the top block is arranged in the limiting cavity and connected with the mounting plate, when the driving block abuts against the driving rod, the first fixing rod and the second fixing rod extend into the limiting cavity, the top block is inserted between the first fixing rod and the second fixing rod, and the top block abuts against the first fixing rod and the second fixing rod, so as to make the first fixing rod and the second fixing rod be clamped with the mounting plate.

[0019] By adopting the technical scheme, in use, the driving rod drives the driving block to move, the driving block is selectively inserted into the groove structure, when the driving block abuts against the driving rod, the moving rod and the limiting plate are pushed to move, the first fixing rod and the second fixing rod extend into the limiting cavity, the top block is inserted between the first fixing rod and the second fixing rod and abuts against the first fixing rod and the second fixing rod, at this time, the reset spring is stretched, the first fixing rod and the second fixing rod are opened and clamped with the mounting plate, so as to fix the mounting plate and the heat exchange box, ensure the stability of the waste heat recovery system structure, and facilitate the stable operation of the system for waste heat recovery.

[0020] Preferably, the input pipe comprises an input part and a diffusion part, the input part and the diffusion part are integrally formed, the diffusion part is connected with the heat exchange box, and the inner diameter of the diffusion part gradually increases from one end close to the input part to the other end.

[0021] By adopting the technical scheme, the input part and the diffusion part of the input pipe are integrally formed, and the inner diameter of the diffusion part gradually increases, so that the hot gas entering the heat exchange box can be more uniformly diffused, and the contact area with the heat exchange pipe and the heat exchange efficiency are improved.

[0022] Preferably, the output pipe comprises an output part and a collection part, the collection part is connected with the heat exchange box, the output part and the collection part are integrally formed, and the inner diameter of the collection part gradually decreases from one end away from the output part to the other end.

[0023] By adopting the technical scheme, the collection part of the output pipe has a gradually decreasing inner diameter, so that the fluid after heat exchange in the heat exchange box can be collected, the fluid flows more smoothly to the output part, and the overall operation efficiency of the waste heat recovery system is improved.

[0024] Preferably, the bottom of the heat exchange box is connected with a drain pipe.

[0025] By adopting the technical scheme, the drain pipe is arranged at the bottom of the heat exchange box, so that the accumulated water in the heat exchange box can be drained, and the normal operation of the waste heat recovery system is avoided.

[0026] In summary, the present application has the following advantages: The input pipe and the output pipe on both sides of the heat exchange box are used to realize the input and output of flue gas, the jack on the top of the heat exchange box is convenient for the insertion of the heat exchange pipe, the isolation plate and the channel in the heat exchange pipe can make the water flow in the first space and the second space for sufficient heat exchange, the water supply structure and the water outlet structure realize the input and output of water, and the abutment of the mounting plate and the heat exchange box can guarantee the stability of the installation of the heat exchange pipe, so as to realize the effective recovery of waste heat in the toner production field. When it is necessary to replace the heat exchange device, the heat exchange pipe can be pulled out of the jack, the mounting plate is separated from the heat exchange box, then another set of heat exchange device is replaced, the new heat exchange pipe is inserted into the jack, the mounting plate is abutted with the heat exchange box, and the replacement of the heat exchange device is completed, so as to improve the heat exchange efficiency. BRIEF DESCRIPTION OF DRAWINGS

[0027] Figure 1 It is a whole structure schematic diagram of a waste heat recovery system in the toner production field.

[0028] Figure 2 It is a structure schematic diagram of a heat exchange device.

[0029] Figure 3 It is a structure schematic diagram of a water supply structure and a water outlet structure.

[0030] Figure 4 It is an internal schematic diagram of a heat exchange box.

[0031] Figure 5 It is Figure 4 It is an enlarged schematic diagram of part A in the figure.

[0032] Figure 6 It is a position schematic diagram of a control device and a heat exchange pipe.

[0033] Figure 7 It is a structure schematic diagram of a sealing structure.

[0034] Figure 8 It is a position schematic diagram of a fixing device and a heat exchange box.

[0035] Figure 9 is a structural diagram of the fixing device.

[0036] BRIEF DESCRIPTION OF DRAWINGS 1, heat exchange box; 11, jack; 12, sealing cavity; 13, movable cavity; 14, first sliding groove; 15, second sliding groove; 16, groove structure; 2, input pipe; 3, output pipe; 4, drain pipe; 5, heat exchange device; 51, mounting plate; 511, limiting cavity; 512, through hole; 52, heat exchange pipe; 521, isolation plate; 522, first space; 523, second space; 53, water feeding structure; 531, water feeding pipe; 532, first branch pipe; 533, second branch pipe; 54, water outlet structure; 541, water outlet pipe; 542, third branch pipe; 543, fourth branch pipe; 5431, water through hole; 6, sealing structure; 61, first sealing half ring; 611, first block; 62, second sealing half ring; 621, second block; 63, tightening sleeve; 7, control device; 71, air cylinder; 72, driving rod; 73, control rod; 74, first acting rod; 75, lever; 751, first sliding hole; 752, first sliding block; 753, second sliding hole; 754, second sliding block; 76, synchronization rod; 77, second acting rod; 8, fixing device; 81, driving block; 82, moving rod; 83, limiting plate; 84, first fixing rod; 85, second fixing rod; 86, return spring; 87, top block. DETAILED DESCRIPTION

[0037] In order for those skilled in the art to better understand the technical solutions in the specification, the technical solutions in the specification will be clearly and completely described below in conjunction with the accompanying drawings in the specification embodiments. Obviously, the described embodiments are only some of the embodiments of the present application, not all.

[0038] In the description of the embodiments of the present application, the words such as "for example" or "for instance" are used to represent an example, illustration or description. Any embodiment or design scheme described as "for example" or "for instance" in the embodiments of the present application should not be interpreted as more preferred or more advantageous than other embodiments or design schemes. Rather, the words such as "for example" or "for instance" are intended to present the relevant concept in a specific way.

[0039] In the description of the embodiments of the present application, the term "a plurality of" means two or more. For example, a plurality of systems means two or more systems, and a plurality of screen terminals means two or more screen terminals. In addition, the terms "first", "second", etc. are used only for the purpose of description and should not be understood as indicating or implying relative importance or implicitly indicating the technical features indicated. Therefore, the features defined as "first", "second", etc. can explicitly or implicitly include one or more of the features. The terms "include", "contain", "have" and their variants mean "include but are not limited to", unless otherwise specifically emphasized.

[0040] A waste heat recovery system in the field of toner production, referring to Figure 1 and Figure 2 , comprising a heat exchange box 1 and a heat exchange device 5. The heat exchange box 1 is communicated with an input pipe 2 and an output pipe 3 on both sides respectively. The heat exchange device 5 comprises a mounting plate 51, heat exchange pipes 52, a water feeding structure 53 and a water outlet structure 54, the heat exchange box 1 is provided with a plurality of insertion holes 11 at the top, the heat exchange pipes 52 are provided with a plurality of heat exchange pipes 52, and are connected with the mounting plate 51, and the heat exchange pipes 52 are selectively inserted into the corresponding insertion holes 11.

[0041] Referring to Figure 3 and Figure 4 , the inner wall of the heat exchange pipe 52 is connected with a partition plate 521, the partition plate 521 separates the heat exchange pipe 52 into a first space 522 and a second space 523, the partition plate 521 is provided with a channel communicating the first space 522 and the second space 523, the water feeding structure 53 and the water outlet structure 54 are connected with the mounting plate 51, the water feeding structure 53 is used for communicating with the first space 522, the water outlet structure 54 is used for communicating with the second space 523, and the mounting plate 51 abuts against the heat exchange box 1 when the heat exchange pipe 52 is inserted into the heat exchange box 1.

[0042] Through this cooperation, high-temperature flue gas enters the heat exchange box 1 from the input pipe 2, exchanges heat with the cooling liquid in the heat exchange pipe 52, and transfers the waste heat to the cooling liquid. The cooling liquid enters the heat exchange pipe 52 from the water feeding structure 53, flows out from the water outlet structure 54 after heat exchange, realizes the recycling of waste heat, and improves the performance of the waste heat recovery system.

[0043] Referring to Figure 2 , the input pipe 2 is used for inputting high-temperature flue gas, and the input pipe 2 comprises an input part and a diffusion part, the input part and the diffusion part are integrally formed, the diffusion part is fixedly connected with the heat exchange box 1, and the inner diameter of the diffusion part gradually increases from one end close to the input part to the other end. This structure can make the high-temperature flue gas enter the heat exchange box 1 more uniformly, and improve the heat exchange efficiency.

[0044] Referring to Figure 2The output pipe 3 is used for outputting the heat-exchanged flue gas. The output pipe 3 comprises an output part and a collecting part. The collecting part is connected with the heat exchange box 1, and the output part is integrally formed with the collecting part. The inner diameter of the collecting part gradually decreases from one end to the other end, which can better collect the heat-exchanged flue gas and discharge the flue gas.

[0045] With reference to Figure 2 The heat exchange box 1 is communicated with a drain pipe 4 at the bottom, which is used for discharging the condensed water generated in the heat exchange process.

[0046] With reference to Figure 2 The heat exchange pipes 52 are divided into a plurality of first groups and a plurality of second groups. The heat exchange pipes 52 in the first group and the second group are alternately arranged along the second direction. The plurality of heat exchange pipes 52 in the first group are spaced apart along the first direction, and the plurality of heat exchange pipes 52 in the second group are spaced apart along the first direction. The heat exchange pipes 52 in the first group and the heat exchange pipes 52 in the second group are staggered. This arrangement can increase the contact area of the high-temperature flue gas with the heat exchange pipes 52 and improve the heat exchange efficiency.

[0047] The first direction is perpendicular to the direction of the flue gas flow, and the second direction can be the direction of the flue gas flow.

[0048] With reference to Figure 3 The water feeding structure 53 comprises a water feeding pipe 531, a first branch pipe 532 and a second branch pipe 533. The water feeding pipe 531 is used for connecting a water source. The first branch pipe 532 is provided with a plurality of first branch pipes 532, which are all communicated with the water feeding pipe 531. The second branch pipe 533 is provided with a plurality of second branch pipes 533, each of which corresponds to one of the heat exchange pipes 52. The first space 522 is communicated with the second branch pipe 533.

[0049] With reference to Figure 3 The water outlet structure 54 comprises the water feeding pipe 531, a third branch pipe 542 and a fourth branch pipe 543. The water feeding pipe 531 is used for connecting a hot water storage. The third branch pipe 542 is provided with a plurality of third branch pipes 542, which are all communicated with the water outlet pipe 541. The fourth branch pipe 543 is provided with a plurality of fourth branch pipes 543, each of which corresponds to one of the heat exchange pipes 52. The second space 523 is communicated with the fourth branch pipe 543.

[0050] With reference to Figure 4 and Figure 5 The fourth branch pipe 543 is close to the bottom end of the heat exchange pipe 52 at the end away from the third branch pipe 542. A plurality of water holes 5431 are formed in the fourth branch pipe 543, and the water holes 5431 are spaced apart along the length direction of the fourth branch pipe 543.

[0051] With reference to Figure 4 and Figure 5 A plurality of sealing cavities 12 are formed in the heat exchange box 1. The sealing cavities 12 correspond to the insertion holes 11 one by one, and the sealing cavities 12 are communicated with the insertion holes 11.

[0052] With reference to Figure 5 , Figure 6 and Figure 7 , each sealing cavity 12 is provided with a sealing structure 6, which comprises a first sealing half 61, a second sealing half 62 and a tightening sleeve 63. The sealing cavity 12 is provided with a first sliding groove 14 and a second sliding groove 15 on the side wall away from the outside. The first sealing half 61 is fixedly connected with a first block 611, which is arranged in the first sliding groove 14 and is in sliding connection with the heat exchange box 1. The second sealing half 62 is fixedly connected with a second block 621, which is arranged in the second sliding groove 15 and is in sliding connection with the heat exchange box 1.

[0053] With reference to Figure 5 , the first sliding groove 14 is provided with a first spring, one end of which is fixedly connected with the heat exchange box 1 and the other end of which is fixedly connected with the first block 611. The second sliding groove 15 is provided with a second spring, one end of which is fixedly connected with the heat exchange box 1 and the other end of which is fixedly connected with the second block 621. The arrangement of the first spring and the second spring facilitates the resetting of the first sealing half 61 and the second sealing half 62.

[0054] With reference to Figure 2 , Figure 6 and Figure 7 , when the heat exchange pipe 52 is inserted into the insertion hole 11, the heat exchange pipe 52 passes through between the first sealing half 61 and the second sealing half 62. The tightening sleeve 63 is sleeved on the heat exchange pipe 52, the inner diameter of the tightening sleeve 63 gradually decreases from one end close to the sealing half to the other end, and when the tightening sleeve 63 is sleeved on the first sealing half 61 and the second sealing half 62, the first sealing half 61 and the second sealing half 62 form a sealing ring and abut against the outer wall of the heat exchange pipe 52, so as to realize the isolation of the inside of the heat exchange box 1 from the outside.

[0055] With reference to Figure 5 , Figure 6 and Figure 7 , the heat exchange box 1 is provided with a movable cavity 13, and the sealing cavity 12 is in communication with the movable cavity 13. The heat exchange box 1 is connected with a control device 7, which comprises a gas cylinder 71, a driving rod 72, a plurality of control rods 73, a first acting rod 74, a lever 75, a synchronous rod 76 and a second acting rod 77. The gas cylinder 71 is fixedly connected with the driving rod 72. One end of the control rod 73 is fixedly connected with the driving rod 72, and the other end of the control rod 73 penetrates through the heat exchange box 1 and extends into the movable cavity 13, and the control rod 73 is in sliding connection with the heat exchange box 1. Each group of heat exchange pipes 52 corresponds to one control rod 73, and each control rod 73 is hingedly connected with a plurality of first acting rods 74, one end of the first acting rod 74 away from the control rod 73 being hingedly connected with the tightening sleeve 63.

[0056] When the cylinder 71 is started, the drive shaft of the cylinder 71 is extended, and the driving rod 72 is driven to move, and the control rod 73 is driven by the driving rod 72 to move towards the inside of the movable cavity 13, and the control rod 73 drives the tightening sleeve 63 to move towards the first sealing half 61 and the second sealing half 62 through the first action rod 74, so as to control the sealing structure 6. When the drive shaft of the cylinder 71 is retracted, the driving rod 72 and the control rod 73 move reversely, and then the tightening sleeve 63 moves reversely, and the first spring resets the first sealing half 61, and the second spring resets the second sealing half 62.

[0057] With reference to Figure 5 , Figure 6 and Figure 7 , the lever 75 and the synchronous rod 76 are arranged in the movable cavity 13. The lever 75 is provided in plurality, and the middle part of the lever 75 is rotationally connected with the heat exchange box 1 through a rotating shaft. The two ends of the lever 75 are respectively provided with a first sliding hole 751 and a second sliding hole 753, the first sliding hole 751 is provided with a first sliding block 752 which is slidingly connected with the lever 75, and the first sliding block 752 is fixedly connected with the control rod 73. The second sliding hole 753 is provided with a second sliding block 754 which is slidingly connected with the lever 75, and the second sliding block 754 is connected with the synchronous rod 76. The synchronous rod 76 is provided in plurality, and the synchronous rod 76 is slidingly connected with the heat exchange box 1, and the length direction of the synchronous rod 76 is parallel to the length direction of the control rod 73. Each synchronous rod 76 is hingedly provided with a plurality of second action rods 77, and one end of the second action rod 77 away from the synchronous rod 76 is hingedly connected with the tightening sleeve 63.

[0058] When the control rod 73 moves, the first sliding block 752 on the control rod 73 slides in the first sliding hole 751 of the lever 75, so that the lever 75 rotates around the rotating shaft, and then the second sliding block 754 in the second sliding hole 753 of the lever 75 drives the synchronous rod 76 to move, and the synchronous rod 76 drives the tightening sleeve 63 to move through the plurality of second action rods 77, so as to synchronously control each group of sealing structure 6 corresponding to the heat exchange pipe 52, improve the synchronism and stability of the sealing structure 6 control, and realize the reliable isolation between the inside of the heat exchange box 1 and the outside, so as to better recover the waste heat.

[0059] With reference to Figure 8 and Figure 9 , the fixing device 8 is further arranged, the fixing device 8 is provided in plurality, and the specific number can be set according to the actual situation, and the plurality of fixing devices 8 are distributed along the length direction of the driving rod 72. The groove structure 16 is arranged on the heat exchange box 1, the limiting cavity 511 and the through hole 512 are arranged on the mounting plate 51, the through hole 512 is connected between the outside and the limiting cavity 511, and the through hole 512 is correspondingly arranged with the groove structure 16. The bottom end of the fixing device 8 is arranged in the groove structure 16, and when the top end of the fixing device 8 extends to the limiting cavity 511 through the through hole 512, the mounting plate 51 and the heat exchange box 1 are fixed.

[0060] With reference to Figure 9 The fixing device 8 comprises a driving block 81, a moving rod 82, a limiting plate 83, a first fixing rod 84, a second fixing rod 85, a reset spring 86 and a top block 87. One end of the driving block 81 is fixedly connected with the driving rod 72, and the other end is provided with an inclined surface. The driving block 81 is selectively inserted into the slot structure 16. The top end of the moving rod 82 is fixedly connected with the limiting plate 83, and the limiting plate 83 is slidingly connected with the heat exchange box 1. The first end of the first fixing rod 84 and the first end of the second fixing rod 85 are both rotationally connected with the limiting plate 83. The reset spring 86 is arranged between the first fixing rod 84 and the second fixing rod 85. One end of the reset spring 86 is connected with the second end of the first fixing rod 84, and the other end is connected with the second end of the second fixing rod 85.

[0061] With reference to Figure 9 The top block 87 is arranged in the limiting cavity 511 and is fixedly connected with the mounting plate 51. When the driving block 81 abuts against the driving rod 72, the first fixing rod 84 and the second fixing rod 85 extend into the limiting cavity 511, so that the top block 87 is inserted between the first fixing rod 84 and the second fixing rod 85. The top block 87 abuts against the first fixing rod 84 and the second fixing rod 85, so as to make the first fixing rod 84 and the second fixing rod 85 clamped with the mounting plate 51.

[0062] The driving block 81 can be a wedge-shaped block or a hemispherical block. When the driving block 81 is inserted into the slot structure 16, the moving rod 82 is pushed to move upward, thereby driving the limiting plate 83, the first fixing rod 84 and the second fixing rod 85 to move, until the top block 87 is inserted between the first fixing rod 84 and the second fixing rod 85. The reset spring 86 is stretched, so that the first fixing rod 84 and the second fixing rod 85 are clamped with the heat exchange box 1, so as to realize the fixation of the mounting plate 51 and the heat exchange box 1. When the driving block 81 is separated from the slot structure 16, the gravity of the moving rod 82, the limiting plate 83, the first fixing rod 84 and the second fixing rod 85, together with the restoring force of the reset spring 86, makes the first fixing rod 84 and the second fixing rod 85 separated from the limiting cavity 511.

[0063] The use principle of the present application is as follows: the input pipe 2 and the output pipe 3 on both sides of the heat exchange box 1 are used to realize the input and output of flue gas, the jack 11 at the top of the heat exchange box 1 facilitates the insertion of the heat exchange pipe 52; the isolation plate 521 and the channel in the heat exchange pipe 52 can make the water flow in the first space 522 and the second space 523 to realize sufficient heat exchange, the water supply structure 53 and the water outlet structure 54 realize the input and output of water, and the abutment of the mounting plate 51 and the heat exchange box 1 can guarantee the stability of the installation of the heat exchange pipe 52, so as to realize the effective recovery of waste heat in the toner production field. Moreover, when the heat exchange device 5 needs to be maintained, the heat exchange pipe 52 can be pulled out of the jack 11, the mounting plate 51 is separated from the heat exchange box 1, then another set of heat exchange device 5 is replaced, the new heat exchange pipe 52 is inserted into the jack 11, and the mounting plate 51 is abutted with the heat exchange box 1, so that the replacement of the heat exchange device 5 is completed, and the heat exchange efficiency is improved.

[0064] The sealing structure 6 and the control device 7 can guarantee the sealing property of the heat exchange box 1, and prevent the leakage of high-temperature flue gas. The fixing device 8 can firmly connect the mounting plate 51 and the heat exchange box 1, and guarantee the stability of the system. The whole system realizes the recycling of waste heat by transferring the waste heat of high-temperature flue gas to the cooling liquid, reduces the production cost of enterprises, reduces the thermal pollution to the environment, meets the requirements of green and sustainable development, and has a significant improvement and promotion compared with the traditional waste heat recovery technology.

[0065] The embodiments of the specific embodiment are the preferred embodiments of the present application, and do not limit the protection scope of the present application, so that: any equivalent changes made according to the structure, shape, principle of the present application should be covered in the protection scope of the present application.

Claims

1. A waste heat recovery system for toner production, characterized in that: The system includes a heat exchange box (1) and a heat exchange device (5). The heat exchange box (1) has an input pipe (2) and an output pipe (3) connected to its two sides respectively. The top of the heat exchange box (1) has multiple insertion holes (11). The heat exchange device (5) includes a mounting plate (51), heat exchange tubes (52), a water supply structure (53), and a water outlet structure (54). Multiple heat exchange tubes (52) are provided and connected to the mounting plate (51). Each heat exchange tube (52) can be selectively inserted into a corresponding insertion hole (11). An isolation plate (521) is connected to the inner wall of each heat exchange tube (52), and the isolation plate (521) separates the heat exchange tube from the water supply tube. The heat exchange tube (52) is isolated into a first space (522) and a second space (523). The isolation plate (521) has a channel connecting the first space (522) and the second space (523). The water supply structure (53) and the water outlet structure (54) are both connected to the mounting plate (51). The water supply structure (53) is used to communicate with the first space (522), and the water outlet structure (54) is used to communicate with the second space (523). When the heat exchange tube (52) is inserted into the heat exchange box (1), the mounting plate (51) abuts against the heat exchange box (1).

2. The waste heat recovery system for toner production according to claim 1, characterized in that: The heat exchange tubes (52) are divided into a first group and a second group. Multiple heat exchange tubes (52) in the first group are distributed at intervals along the first direction, and multiple heat exchange tubes (52) in the second group are distributed at intervals along the first direction. The heat exchange tubes (52) in the first group and the second group are arranged alternately along the second direction, and the heat exchange tubes (52) in the first group and the heat exchange tubes (52) in the second group are staggered.

3. The waste heat recovery system for toner production according to claim 2, characterized in that: The heat exchange box (1) has multiple sealing cavities (12) inside, and each sealing cavity (12) is connected to the insertion hole (11). Each sealing cavity (12) is provided with a sealing structure (6), which includes a first sealing half ring (61), a second sealing half ring (62), and a tightening sleeve (63). The first sealing half ring (61) is slidably connected to the side wall of the sealing cavity (12) away from the outside, and the second sealing half ring (62) is slidably connected to the side wall of the sealing cavity (12) away from the outside. The heat exchange tube (52) is inserted from... The first sealing half ring (61) and the second sealing half ring (62) pass through each other. The tightening sleeve (63) is fitted on the heat exchange tube (52). The inner diameter of the tightening sleeve (63) gradually decreases from one end to the other. When the tightening sleeve (63) is fitted on the first sealing half ring (61) and the second sealing half ring (62), the first sealing half ring (61) and the second sealing half ring (62) form a sealing ring and abut against the outer wall of the heat exchange tube (52) to isolate the interior of the heat exchange box (1) from the outside.

4. The waste heat recovery system for toner production according to claim 3, characterized in that: The heat exchange box (1) is connected to a movable cavity (13), and the sealed cavity (12) is connected to the movable cavity (13). The heat exchange box (1) is connected to a control device (7). The control device (7) includes a cylinder (71), a drive rod (72), a control rod (73), and a first action rod (74). The cylinder (71) is connected to the heat exchange box (1), and the drive rod (72) is connected to the cylinder (71). Multiple control rods (73) are provided. One end of the control rod (73) is connected to the drive rod (72), and the other end passes through the heat exchange box (1) and extends into the movable cavity (13). Each set of heat exchange tubes (52) corresponds to a control rod (73). Each control rod (73) is hinged to multiple first action rods (74). The end of the first action rod (74) away from the control rod (73) is hinged to the tightening sleeve (63).

5. A waste heat recovery system for toner production according to claim 4, characterized in that: The control device (7) further includes a lever (75), a synchronizing rod (76), and a second actuating rod (77). The lever (75) and the synchronizing rod (76) are both located within the movable cavity (13). The control rod (73), the lever (75), and the synchronizing rod (76) form a control group. Each heat exchange tube (52) corresponds to one control group. The middle part of the lever (75) is rotatably connected to the heat exchange box (1) via a rotating shaft. The two ends of the lever (75) are respectively provided with a first sliding hole (751) and a second sliding hole (753). The first sliding hole (751) is provided with a first slider (752) that is slidably connected to the lever (75). The first slider (752) is connected to the control rod (73). The second sliding hole (753) is provided with a second slider (754) that is slidably connected to the lever (75). The second slider (754) is connected to the synchronizing rod (76). Each synchronizing rod (76) is hinged with a plurality of second action rods (77). The end of the second action rod (77) away from the synchronizing rod (76) is hinged to the tightening sleeve (63).

6. A waste heat recovery system for toner production according to claim 4, characterized in that: It also includes a fixing device (8). The heat exchange box (1) has a groove structure (16). The mounting plate (51) has a limiting cavity (511) and a through hole (512). The through hole (512) connects to the outside and the limiting cavity (511). The through hole (512) is correspondingly set with the groove structure (16). The bottom end of the fixing device (8) is located in the groove structure (16). When the top end of the fixing device (8) passes through the through hole (512) and extends to the limiting cavity (511), it is used to fix the mounting plate (51) and the heat exchange box (1).

7. A waste heat recovery system for toner production according to claim 6, characterized in that: The fixing device (8) includes a drive block (81), a moving rod (82), a limiting plate (83), a first fixing rod (84), a second fixing rod (85), a return spring (86), and a top block (87). The drive block (81) is connected to the drive rod (72), and the drive block (81) can be selectively inserted into the slot structure (16). The top end of the moving rod (82) is connected to the limiting plate (83), the limiting plate (83) is slidably connected to the heat exchange box (1), the first end of the first fixed rod (84) and the first end of the second fixed rod (85) are rotatably connected to the limiting plate (83), the return spring (86) is disposed between the first fixed rod (84) and the second fixed rod (85), one end of the return spring (86) is connected to the second end of the first fixed rod (84) and the other end is connected to the second end of the second fixed rod (85); The top block (87) is located in the limiting cavity (511) and connected to the mounting plate (51). When the driving block (81) abuts against the driving rod (72), the first fixing rod (84) and the second fixing rod (85) extend into the limiting cavity (511), and the top block (87) is inserted between the first fixing rod (84) and the second fixing rod (85). The top block (87) abuts against both the first fixing rod (84) and the second fixing rod (85) to make both the first fixing rod (84) and the second fixing rod (85) engage with the mounting plate (51).

8. A waste heat recovery system for toner production according to claim 1, characterized in that: The input pipe (2) includes an input section and a diffusion section. The input section and the diffusion section are integrally formed. The diffusion section is connected to the heat exchange box (1). The inner diameter of the diffusion section gradually increases from one end near the input section to the other end.

9. A waste heat recovery system for toner production according to claim 1, characterized in that: The output pipe (3) includes an output section and a collection section. The collection section is connected to the heat exchange box (1). The output section and the collection section are integrally formed. The inner diameter of the collection section gradually decreases from one end away from the output section to the other end.

10. A waste heat recovery system for toner production according to claim 1, characterized in that: The bottom of the heat exchange box (1) is connected to a drain pipe (4).

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