A rubber plant waste heat utilization type heat exchanger

Abstract

This invention relates to the field of heat exchanger technology, and more particularly to a waste heat utilization heat exchanger for rubber workshops. It includes a shell, within which several pairs of partitions are fixedly connected. Each pair of partitions forms a heat exchange chamber with the shell. Two partitions in the middle of adjacent pairs and one partition on one side of the shell respectively form drainage chambers with the shell. Several heat exchange tubes are fixedly connected between the partitions in the same pair, and connecting pipes are fixedly connected between adjacent partitions in adjacent pairs. This invention, by setting multiple drainage chambers in the shell, with different heat exchange times for the water in different drainage chambers, achieves the discharge of hot water at different temperatures and flow rates. This allows for precisely matched heat sources for different chemical conditions such as the dehydration tower, dewatering tower, polymerization preheating, and heat tracing system, effectively reducing heat waste, significantly improving the comprehensive utilization rate of waste heat, and reducing energy consumption.

Description

Technical Field

[0001] This invention relates to the field of heat exchanger technology, and more particularly to a waste heat utilization heat exchanger for rubber workshops. Background Technology

[0002] In the MTBE unit of the C4 dehydrogenation plant, the MTBE extracted from the bottom of the catalytic distillation column has a high outlet temperature (80℃-90℃) after heat exchange with the feed. However, the external delivery temperature of MTBE needs to be controlled at a low temperature (below 35℃). Traditional processes usually use direct cooling with circulating water. This method not only wastes heat but also consumes a large amount of circulating water, indirectly increasing energy consumption and water waste. In the refining unit of the rubber plant, both the butadiene dehydration tower reboiler and the butadiene deweighting tower reboiler require external heat sources to meet process requirements. Some companies usually use shell-and-tube heat exchangers to use the heat from the external MTBE delivery for heating the equipment in the rubber workshop to achieve waste heat recovery and utilization. The MTBE is used as a heat source to heat the water, and then the heated water is circulated to the reboilers in the refining unit.

[0003] The structure of existing shell-and-tube heat exchangers limits their output to a single temperature, making it impossible to provide heat sources at different temperatures according to the actual needs of various heat source devices. This single-temperature output mode has significant drawbacks: when the water temperature is set to meet the requirements of the dehydration tower, there is a heat surplus for low-temperature users such as the dehydration tower; when set to meet the requirements of the dehydration tower, the dehydration tower has insufficient heat and still needs to rely on steam for supplemental heating. In addition, the equipment in the rubber workshop also includes a preheater for the polymerization unit feed (requiring a temperature of 45-50℃) and winter heat tracing pipelines (requiring a temperature of 30-35℃). These low-temperature heat source requirements cannot be effectively incorporated into the waste heat utilization system under existing technology and still rely on steam or electric heat tracing, resulting in further energy waste. Summary of the Invention

[0004] In order to overcome the shortcomings mentioned in the background art, the present invention provides a waste heat utilization heat exchanger for rubber workshops.

[0005] Technical Solution: A waste heat recovery heat exchanger for a rubber workshop includes a shell. Several pairs of partitions are fixedly connected inside the shell. Each pair of partitions forms a heat exchange chamber with the shell. Two partitions in the middle of two adjacent pairs and one partition on one side of the shell respectively form a drain chamber with the shell. The partition on the other side of the shell forms a liquid inlet chamber with the shell. Several heat exchange tubes are fixedly connected between the partitions in the same pair. Two adjacent drain chambers and the liquid inlet chamber are connected to adjacent drain chambers via corresponding heat exchange tubes. A connecting pipe is fixedly connected between two adjacent partitions in two adjacent pairs to connect two adjacent heat exchange chambers. The shell is fixedly connected to an inlet pipe communicating with the liquid inlet chamber. The shell is fixedly connected to an outlet pipe equal in number to the number of drain chambers, communicating with the corresponding drain chamber. The shell is fixedly connected to a drain pipe and an injection pipe, which are respectively connected to the heat exchange chambers on both sides.

[0006] Furthermore, the heat exchange tube is corrugated to alter the flow state of the water inside it.

[0007] Furthermore, the heat exchange tubes in two adjacent heat exchange chambers are distributed differently to disturb the flow state of the water.

[0008] Furthermore, all the heat exchange tubes in the same heat exchange cavity are fixedly connected to two symmetrically distributed flow dividers. The two symmetrically distributed flow dividers are located between the same pair of partitions. The central axis of the flow divider coincides with the central axis of the partition. A gap is left between the flow divider and the shell. A through hole is provided in the middle of the flow divider.

[0009] Furthermore, the drain pipe is located between the adjacent partition and the adjacent diverter plate, and the injection pipe is located between the adjacent partition and the adjacent diverter plate.

[0010] Furthermore, all the partitions are jointly and slidably connected by a first sealing frame and a second sealing frame. The first sealing frame is used to seal the gaps between all the flow dividers and the housing, and the second sealing frame is used to seal the through holes in the middle of all the flow dividers.

[0011] Furthermore, the housing is fixedly connected to two symmetrically distributed driving components, and the housing is rotatably sealed to two symmetrically distributed transmission shafts. The two transmission shafts are respectively located in the liquid inlet chamber and the liquid outlet chamber on the side of the housing away from the liquid inlet chamber. The output shaft of the driving component is fixedly connected to the corresponding transmission shaft. The first sealing frame and the second sealing frame are both fixedly connected to two symmetrically distributed racks. The two symmetrically distributed racks on the first sealing frame are respectively located in the liquid inlet chamber and the liquid outlet chamber on the side of the housing away from the liquid inlet chamber. The two symmetrically distributed racks on the second sealing frame are respectively located in the liquid inlet chamber and the liquid outlet chamber on the side of the housing away from the liquid inlet chamber. The transmission shaft is fixedly connected to a first gear that meshes with the corresponding two racks.

[0012] Furthermore, the partition is composed of a fixed ring and a rotating plate. The fixed ring is fixedly connected to the housing, the rotating plate is rotatably connected to the fixed ring in a sealed manner, the first sealing frame is slidably connected to the fixed ring in a sealed manner, and the second sealing frame is slidably and rotatably connected to the rotating plate in a sealed manner.

[0013] Furthermore, each of the rotating plates located on both sides of the housing is fixedly connected to a connecting cylinder, the connecting cylinder is fixedly connected to a transmission gear ring, and the transmission shaft is fixedly connected to a second gear that meshes with the adjacent transmission gear ring.

[0014] Furthermore, the first gear is a missing tooth gear, with two missing tooth gaps distributed symmetrically in a central manner.

[0015] Compared with the prior art, the present invention has the following advantages: 1. The present invention sets multiple drainage chambers in the shell, and the heat exchange time of the water in different drainage chambers is different, so as to realize the discharge of hot water with different temperatures and flow rates, so that different chemical conditions such as the de-weighting tower, dehydration tower, polymerization preheating and heat tracing system can obtain a precisely matched heat source, effectively reduce the degree of heat energy waste, significantly improve the comprehensive utilization rate of waste heat, and reduce energy consumption.

[0016] 2. By periodically dispersing and converging hot water within the heat exchange chamber, dead zones in the hot water flow are reduced, allowing the water body and hot water to fully contact each other, significantly improving the uniformity of heat exchange. Subsequently, by continuously switching the direction of hot water flow through the first and second sealing frames, the probability of dead zones forming in the fixed flow channel is further reduced, ensuring uniform heat transfer and effectively improving the utilization rate of waste heat.

[0017] 3. By rotating all heat exchange tubes when switching the flow mode of hot water, and continuously and dynamically changing the distribution of heat exchange tubes in the shell while the hot water maintains any flow mode, the hot water flow channel is continuously reconstructed, further reducing the local dead zone of hot water flow, ensuring that the hot water and water body are always in a uniform disturbance state, significantly improving the heat exchange uniformity and heat transfer efficiency, and further enhancing the waste heat recovery effect. Attached Figure Description

[0018] Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 This is a three-dimensional cross-sectional view of the housing of the present invention; Figure 3 This is a three-dimensional structural diagram of the heat exchange tube of the present invention; Figure 4 This is an exploded three-dimensional structural diagram of the first and second sealing frames of the present invention; Figure 5 This is a three-dimensional structural diagram of the transmission shaft and the first gear of the present invention; Figure 6 This is a three-dimensional structural diagram of the transmission gear ring and the second gear of the present invention.

[0019] In the above attached figures: 1: shell, 2: partition plate, 3: heat exchange chamber, 4: drain chamber, 5: inlet chamber, 6: heat exchange tube, 7: connecting pipe, 8: inlet pipe, 9: outlet pipe, 10: drain pipe, 11: injection pipe, 201: flow divider plate, 202: first sealing frame, 203: second sealing frame, 204: driving component, 205: transmission shaft, 206: rack, 207: first gear, 301: fixed ring, 302: rotating plate, 303: connecting cylinder, 304: transmission gear ring, 305: second gear. Detailed Implementation

[0020] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the invention.

[0021] Existing shell-and-tube heat exchangers can only provide hot water at a single temperature, making it difficult to match the differentiated heating needs of multiple users: high-temperature settings cause overheating of low-temperature users (such as dehydration towers and heat tracing pipelines), while low-temperature settings require additional steam to heat high-temperature users (such as dehydration towers). Furthermore, low-temperature heating demands such as 45–50℃ and 30–35℃ cannot be incorporated into the waste heat system and still rely on steam or electric heat tracing, resulting in energy waste.

[0022] In the specification, the high-temperature water discharged from the catalytic distillation tower of the MTBE unit in the C4 dehydrogenation unit is described as hot water, and the heat source provided to the de-weighting tower and dehydration tower in the rubber workshop, as well as the feed preheater and heat tracing pipeline, is described as water.

[0023] Example 1 This embodiment provides a waste heat utilization heat exchanger for rubber workshops, which can improve the waste heat utilization rate of rubber workshops.

[0024] like Figures 1-3 As shown, the device includes a shell 1. Two symmetrically distributed supports are fixedly connected to the outer shell of the shell 1 to support the entire device. Three pairs of partitions 2 are fixedly connected inside the shell 1. In this embodiment, the partitions 2 are circular plates, but this is limited to this embodiment. Each pair of partitions 2 forms a heat exchange chamber 3 with the shell 1. The two middle partitions 2 in two adjacent pairs and the partition 2 on the right side of the shell 1 respectively form drainage chambers 4 with the shell 1, for a total of three drainage chambers 4. The partition 2 on the left side of the shell 1 forms a liquid inlet chamber 5 with the shell 1. Several heat exchange tubes are fixedly connected between the same pair of partitions 2. 6. The heat exchange tubes 6 are wavy to alter the flow state of the water inside, extend the heat exchange path between the water and hot water, increase the heat exchange range between the hot and cold water, and improve the uniformity of heat exchange. The distribution of heat exchange tubes 6 in adjacent heat exchange chambers 3 is different, so that after the water enters the adjacent drain chamber 4 along several heat exchange tubes 6 in a certain heat exchange chamber 3, it will not directly enter the corresponding heat exchange tube 6 in the next heat exchange chamber 3. This is used to disturb the flow state of the water. The two adjacent drain chambers 4 and the inlet chamber 5 are connected to the adjacent drain chamber 4 through the corresponding heat exchange tubes 6. Water enters the first discharge chamber 4 from the left inlet chamber 5 through several heat exchange tubes 6, then enters the second discharge chamber 4 through several more heat exchange tubes 6, and finally enters the third discharge chamber 4 through several more heat exchange tubes 6. A connecting pipe 7 is fixedly connected between adjacent partitions 2 in two pairs of partitions 2, connecting the two adjacent heat exchange chambers 3. The shell 1 is fixedly connected to an inlet pipe 8 communicating with the inlet chamber 5, used to inject water into the shell 1. The shell 1 is fixedly connected to an outlet pipe 9, the same number as the discharge chambers 4. The three outlet pipes 9 are respectively connected to the corresponding discharge chambers. The liquid chamber 4 is connected, and the liquid outlet pipe 9 is used to discharge the heated water. Different liquid outlet pipes 9 are used to discharge water at different temperatures. The shell 1 is fixedly connected with the liquid drain pipe 10 and the liquid injection pipe 11. The liquid drain pipe 10 and the liquid injection pipe 11 are respectively connected to the heat exchange chambers 3 on both sides. The liquid drain pipe 10 discharges the hot water in the left heat exchange chamber 3 outward. The liquid injection pipe 11 is used to inject hot water into the right heat exchange chamber 3. The hot water enters the right heat exchange chamber 3 from the liquid injection pipe 11. The right heat exchange chamber 3 is connected to the next heat exchange chamber 3 through the connecting pipe 7. This connection continues until the leftmost heat exchange chamber 3 is reached and discharged along the liquid drain pipe 10.

[0025] Working principle: When a heat source is needed to be added to the dehydration and dewatering towers in the rubber workshop, hot water is injected through the injection pipe 11 into the right-side heat exchange chamber 3. The hot water then enters the next heat exchange chamber 3 through the connecting pipe 7. This process continues until all heat exchange chambers 3 are full. At the same time, hot water is discharged from the left-side heat exchange chamber 3 along the drain pipe 10. Simultaneously, water is injected into the inlet chamber 5 through the inlet pipe 8. The water flows from the inlet chamber 5 through several heat exchange pipes 6 in the left-side heat exchange chamber 3 of the shell 1 to the first drain chamber 4. The water in the first drain chamber 4 then flows through several heat exchange pipes 6 in the middle heat exchange chamber 3 of the shell 1. The water flows through the heat exchange tube 6 to the second drain chamber 4. The water in the second drain chamber 4 then flows through several heat exchange tubes 6 in the heat exchange chamber 3 on the right side of the shell 1 to the third drain chamber 4. During the flow of the water through the heat exchange tubes 6, the water exchanges heat with the hot water in the heat exchange chamber 3, raising its own temperature. The heat exchange time of the water in the drain chamber 4 increases sequentially from left to right, so the temperature of the water in the drain chamber 4 increases sequentially from left to right. By adjusting the opening state of the corresponding outlet pipes 9 in the drain chambers 4, water of different temperatures and flow rates can be discharged to cope with different heating environments and make full use of the thermal energy of the hot water.

[0026] Because the heat exchange tube 6 has a wave-like structure, the water will continuously change its flow state as it flows along the heat exchange tube 6 and exchanges heat with the hot water in the heat exchange chamber 3. This will ensure that the water exchanges heat with the external hot water evenly. At the same time, when the water enters the next row of liquid chambers 4 along several heat exchange tubes 6, all the water will be mixed together and then dispersed by several heat exchange tubes 6, which will change the flow state of the water again and further improve the uniformity of heat exchange between the water and the external hot water. When the heat exchange is completed, the staff will stop injecting hot water into the injection pipe 11 and stop injecting water into the inlet pipe 8. The above steps will be repeated when heat exchange is needed again.

[0027] Example 2 This embodiment provides a waste heat utilization heat exchanger for a rubber workshop, which is a further improvement on Embodiment 1.

[0028] like Figures 2-4As shown, all heat exchange tubes 6 in the same heat exchange chamber 3 are fixedly connected to two symmetrically distributed flow dividers 201. The two symmetrically distributed flow dividers 201 are located between the same pair of partitions 2. The central axis of the flow divider 201 coincides with the central axis of the partition 2. A gap is left between the flow divider 201 and the shell 1 to allow hot water to flow along the gap between the flow divider 201 and the shell 1. A through hole is provided in the middle of the flow divider 201 to allow hot water to flow along the through hole in the middle of the flow divider 201. The drain pipe 10 is located between the adjacent partition 2 and the adjacent flow divider 201, and the injection pipe 11 is located between the adjacent partition 2 and the adjacent flow divider 201. All partitions 2 are connected by a first sealing frame 202 and a second sealing frame 203 in a common sealing sliding connection. The first sealing frame 202 is used to seal the gaps between all the diversion plates 201 and the housing 1, and the second sealing frame 203 is used to seal the through holes in the middle of all the diversion plates 201. In the initial state, based on the two diversion plates 201 between a pair of partitions 2, the gap between the right diversion plate 201 and the housing 1 is open, and the through hole in the middle of the right diversion plate 201 is sealed by the second sealing frame 203. Meanwhile, the gap between the left diversion plate 201 and the housing 1 is sealed by the first sealing frame 202, and the through hole in the middle of the left diversion plate 201 is open. This allows the hot water to first disperse and then concentrate when flowing from right to left, thus circulating in a cycle.

[0029] like Figure 1 , Figure 2 , Figure 5 and Figure 6 As shown, the housing 1 is fixedly connected to two symmetrically distributed drive components 204, which are servo motors. The housing 1 is rotatably connected to two symmetrically distributed transmission shafts 205, which are respectively located in the inlet chamber 5 and the drain chamber 4 on the right side of the housing 1. The output shaft of the drive component 204 is fixedly connected to the corresponding transmission shaft 205. The first sealing frame 202 and the second sealing frame 203 are both fixedly connected to two symmetrically distributed racks 206. The two symmetrically distributed racks 206 on the first sealing frame 202 are located in the inlet chamber 5 and the drain chamber 4 on the right side of the housing 1, respectively. The second sealing frame 202... Two symmetrically distributed racks 206 are located in the inlet chamber 5 and the drain chamber 4 on the right side of the housing 1, respectively. The drive shaft 205 is fixedly connected to a first gear 207 that meshes with the corresponding two racks 206. The two drive members 204 drive the corresponding drive shafts 205 to rotate, and the two drive shafts 205 rotate in the same direction. This enables the two drive shafts 205 to drive the first sealing frame 202 and the second sealing frame 203 to move in opposite or opposite directions through the corresponding first gear 207 and the two racks 206, thereby changing the gap between the diverter plate 201 and the housing 1 and the opening state of the through hole in the middle of the diverter plate 201.

[0030] Working principle: During the heat exchange process described above, when hot water flows from right to left in the right heat exchange chamber 3, it flows to the left along the gap between the left-side flow divider 201 and the shell 1. Then, the hot water converges in the middle and enters the connecting pipe 7 through the through hole in the middle of the next flow divider 201. It then enters the next heat exchange chamber 3 through the connecting pipe 7. At this moment, the hot water flows to the left along the gap between the next flow divider 201 and the shell 1. This cycle continues until the hot water flows through the through hole in the middle of the leftmost flow divider 201 and is discharged through the drain pipe 10. By continuously dispersing and converging the hot water, the flow state is changed, reducing the probability of dead zones in the heat exchange between the hot water and the water body. During this period, the hot water will pass through several heat exchange tubes 6 to generate baffles, further improving the uniformity of heat exchange between the hot water and the water body.

[0031] After the hot water flow pattern is maintained for a certain period of time (set by the staff according to the actual situation), the two drive components 204 are activated. The output shaft of the drive component 204 drives the corresponding transmission shaft 205 to rotate. The two transmission shafts 205 rotate in the same direction, and the transmission shafts 205 drive the first gear 207 on them to rotate. The first gear 207 drives the first sealing frame 202 and the second sealing frame 203 to move in opposite directions through two adjacent racks 206. The first sealing frame 202 slides along the partition 2, and the second sealing frame 203 slides in the opposite direction to the first sealing frame 202 along the partition 2. 202 Release the middle through hole of the right side flow divider 201 in the same pair of flow dividers 201, and seal the middle through hole of the left side flow divider 201 in the same pair of flow dividers 201. The second sealing bracket 203 releases the seal between the left side flow divider 201 in the same pair of flow dividers 201 and the housing 1, and seals the gap between the right side flow divider 201 in the same pair of flow dividers 201 and the housing 1, and then closes the two driving components 204. In this way, the hot water switches the flow mode when flowing from left to right, so that the hot water first concentrates and disperses, and then flows along the gap between the leftmost flow divider 201 and the housing 1 and along the drain pipe 10.

[0032] After the hot water flow pattern is maintained for the same amount of time, the two drive components 204 are activated, causing the drive components 204 to drive the adjacent transmission shaft 205 to reset and rotate. The transmission shaft 205 drives the first sealing frame 202 and the second sealing frame 203 to reset and slide through the first gear 207 and the rack 206, and the hot water flow pattern from right to left is switched again. This process is repeated, and by continuously changing the hot water flow pattern, the dead zone of hot water flow is reduced, ensuring the uniformity of heat exchange between hot water and water body.

[0033] Example 3 This embodiment provides a waste heat utilization heat exchanger for a rubber workshop, which is a further improvement on embodiment 2.

[0034] like Figure 5 and Figure 6As shown, the partition 2 consists of a fixed ring 301 and a rotating plate 302. The fixed ring 301 is fixedly connected to the housing 1, and the rotating plate 302 is rotatably connected to the fixed ring 301 in a sealed manner. The first sealing frame 202 is slidably connected to the fixed ring 301 in a sealed manner, and the second sealing frame 203 is slidably and rotatably connected to the rotating plate 302 in a sealed manner. Connecting cylinders 303 are fixedly connected to the rotating plates 302 on both sides inside the housing 1. The connecting cylinder 303 on the right rotating plate 302 is located in the right drainage chamber 4, and the connecting cylinder 303 on the left rotating plate 302 is located in the inlet chamber 5. A transmission gear ring 304 is fixedly connected to the connecting cylinder 303. A second gear 305 that meshes with the adjacent transmission gear ring 304 is fixedly connected to the transmission shaft 205. The output shaft of the drive component 204 drives the connecting cylinder 303 to rotate through the transmission shaft 205, the second gear 305, and the transmission gear ring 304. The two second gears 305 mesh with the adjacent transmission gear ring 304. The meshing positions of the moving gear ring 304 are located on the upper and lower sides, respectively, so that when the two driving members 204 drive the corresponding transmission shaft 205 to rotate in the same direction, the rotation directions of the two transmission gear rings 304 are the same. The first gear 207 is a missing gear. The first gear 207 has two missing tooth notches distributed centrally symmetrically. The length of the two teeth of the first gear 207 is sufficient to drive the first sealing frame 202 and the second sealing frame 203 to change position through the corresponding rack 206. In the initial state, the middle part of the two notches of the first gear 207 faces the adjacent rack 206 respectively. The housing 1 is provided with a limiting module (not shown in the figure) in the liquid inlet chamber 5 and the right side liquid outlet chamber 4 to lock the position of the first sealing frame 202 and the second sealing frame 203. The limiting module can adopt the cooperation of elastic bidirectional sawtooth block and sawtooth rod to lock the position of the first sealing frame 202 and the second sealing frame 203 after movement.

[0035] Working principle: When switching the positions of the first sealing frame 202 and the second sealing frame 203, the output shaft of the drive component 204 drives the corresponding transmission shaft 205 to rotate 180°. The transmission shaft 205 drives the first gear 207 on it to rotate synchronously. After the transmission shaft 205 drives the first gear 207 to rotate 180°, the position change of the first sealing frame 202 and the second sealing frame 203 is completed. At the same time, the transmission shaft 205 drives the second gear 305 on it to rotate synchronously. The second gear 305 drives the adjacent rotating plate through the corresponding connecting cylinder 303 and the transmission gear ring 304. When the rotating plate 302 rotates, since two adjacent rotating plates 302 are connected to each other through heat exchange tubes 6 or connecting pipes 7, all rotating plates 302 drive all heat exchange tubes 6 to rotate synchronously. At this time, the output shaft of the driving component 204 can drive the transmission shaft 205 to rotate back and forth (the rotation amplitude ensures that the first gear 207 does not mesh with the two racks 206), thereby realizing the back and forth rotation of several heat exchange tubes 6, so that the hot water corresponds to multiple distribution states of heat exchange tubes 6 under any flow state, reducing the probability of local dead zones when hot water flows, and further improving the heat exchange uniformity between hot water and water body.

[0036] Those skilled in the art should understand that the above embodiments do not limit the present invention in any way, and all technical solutions obtained by equivalent substitution or equivalent transformation fall within the protection scope of the present invention.

Claims

1. A waste heat recovery heat exchanger for rubber workshops, characterized in that, The system includes a shell (1), within which several pairs of partitions (2) are fixedly connected. Each pair of partitions (2) forms a heat exchange chamber (3) with the shell (1). Two partitions (2) in the middle of two adjacent pairs and one partition (2) on one side of the shell (1) respectively form a drain chamber (4) with the shell (1). The partition (2) on the other side of the shell (1) forms a liquid inlet chamber (5) with the shell (1). Several heat exchange tubes (6) are fixedly connected between the same pair of partitions (2). Adjacent drain chambers (4) and liquid inlet chambers (5) are connected to adjacent drain chambers (4) via corresponding... The heat exchange tube (6) is connected, and a connecting pipe (7) is fixedly connected between two adjacent partitions (2) in two adjacent pairs of partitions (2). The connecting pipe (7) is used to connect two adjacent heat exchange chambers (3). The shell (1) is fixedly connected to an inlet pipe (8) that communicates with the inlet chamber (5). The shell (1) is fixedly connected to an outlet pipe (9) that is the same number as the outlet chamber (4). The outlet pipe (9) communicates with the corresponding outlet chamber (4). The shell (1) is fixedly connected to an outlet pipe (10) and an injection pipe (11). The outlet pipe (10) and the injection pipe (11) communicate with the heat exchange chambers (3) on both sides respectively.

2. A waste heat recovery heat exchanger for a rubber workshop according to claim 1, characterized in that, The heat exchange tube (6) is wavy and is used to change the flow state of the water inside it.

3. A waste heat recovery heat exchanger for a rubber workshop according to claim 1, characterized in that, The distribution of the heat exchange tubes (6) in two adjacent heat exchange chambers (3) is different, which is used to disturb the flow state of the water.

4. A waste heat recovery heat exchanger for a rubber workshop according to claim 1, characterized in that, All the heat exchange tubes (6) in the same heat exchange chamber (3) are fixedly connected to two symmetrically distributed flow dividers (201). The two symmetrically distributed flow dividers (201) are located between the same pair of partitions (2). The central axis of the flow divider (201) coincides with the central axis of the partition (2). There is a gap between the flow divider (201) and the shell (1). A through hole is provided in the middle of the flow divider (201).

5. A waste heat recovery heat exchanger for a rubber workshop according to claim 1, characterized in that, The drain pipe (10) is located between the adjacent partition (2) and the adjacent diverter plate (201), and the injection pipe (11) is located between the adjacent partition (2) and the adjacent diverter plate (201).

6. A waste heat recovery heat exchanger for a rubber workshop according to claim 4, characterized in that, All the partitions (2) are connected by a first sealing frame (202) and a second sealing frame (203) in a common sealing sliding connection. The first sealing frame (202) is used to seal the gap between all the diverter plates (201) and the housing (1), and the second sealing frame (203) is used to seal the through hole in the middle of all the diverter plates (201).

7. A waste heat recovery heat exchanger for a rubber workshop according to claim 6, characterized in that, The housing (1) is fixedly connected to two symmetrically distributed drive members (204), and the housing (1) is rotatably sealed to two symmetrically distributed transmission shafts (205). The two transmission shafts (205) are respectively located in the liquid inlet chamber (5) and the liquid outlet chamber (4) on the side of the housing (1) away from the liquid inlet chamber (5). The output shaft of the drive member (204) is fixedly connected to the corresponding transmission shaft (205). The first sealing frame (202) and the second sealing frame (203) are both fixedly connected to two symmetrically distributed racks (206). The two racks (206) symmetrically distributed on the first sealing frame (202) are respectively located in the liquid inlet chamber (5) and the liquid outlet chamber (4) on the side of the housing (1) away from the liquid inlet chamber (5). The two racks (206) symmetrically distributed on the second sealing frame (203) are respectively located in the liquid inlet chamber (5) and the liquid outlet chamber (4) on the side of the housing (1) away from the liquid inlet chamber (5). The drive shaft (205) is fixedly connected to a first gear (207) that meshes with the corresponding two racks (206).

8. A waste heat recovery heat exchanger for a rubber workshop according to claim 7, characterized in that, The partition (2) is composed of a fixed ring (301) and a rotating plate (302). The fixed ring (301) is fixedly connected to the housing (1). The rotating plate (302) is rotatably connected to the fixed ring (301) in a sealed manner. The first sealing frame (202) is slidably connected to the fixed ring (301) in a sealed manner. The second sealing frame (203) is slidably and rotatably connected to the rotating plate (302) in a sealed manner.

9. A waste heat recovery heat exchanger for a rubber workshop according to claim 8, characterized in that, The rotating plates (302) located on both sides of the housing (1) are fixedly connected to the connecting cylinders (303), the connecting cylinders (303) are fixedly connected to the transmission gear rings (304), and the transmission shaft (205) is fixedly connected to the second gear (305) that meshes with the adjacent transmission gear rings (304).

10. A waste heat recovery heat exchanger for a rubber workshop according to claim 7, characterized in that, The first gear (207) is a missing gear, and the first gear (207) has two missing tooth gaps distributed in a centrally symmetrical manner.

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