High-pressure pillow type plate heat exchanger and method for chemical incineration

Abstract

The invention discloses a high-pressure pillow type plate heat exchanger and method for chemical incineration, and belongs to the technical field of heat exchange, the high-pressure pillow type plate heat exchanger for chemical incineration comprises a device shell and a top cover, and the top of the device shell is detachably connected with the top cover through bolts. Cooling liquid circulates between every two adjacent supporting plates, between the supporting plate farthest from the extrusion plate and the device shell and between the extrusion plate and the supporting plate adjacent to the extrusion plate, in the process that waste gas passes through the interiors of the extrusion plate and the multiple supporting plates one by one, the waste gas is continuously filled into the shapes of the corresponding gas grooves, and then the waste gas is discharged out of the device shell. The waste gas exchanges heat with the cooling liquid on one side or two sides, the waste gas exchanges heat with the cooling liquid on the two sides, and the waste gas continuously exchanges heat with the cooling liquid at different positions in the circulation process, so that the heat exchange area of the waste gas and the cooling liquid is increased, and the heat exchange effect of the whole waste gas and the cooling liquid is improved.

Description

Technical Field

[0001] The present invention relates to the field of heat exchange technology, and in particular to a high-pressure pillow-type plate heat exchanger and a method for chemical incineration. Background Art

[0002] Chemical incineration is the process of breaking down harmful substances in chemical waste gas into harmless gases through high-temperature oxidation reactions. This process is typically performed at high temperatures to ensure the complete combustion of organic matter in the harmful gases, converting them into carbon dioxide and water. However, the waste gas after incineration is typically hot, and direct discharge could damage the environment and equipment, necessitating effective cooling.

[0003] For example, a Chinese invention patent (CN216205548U) discloses a pillow-shaped plate heat exchanger assembly with high heat exchange efficiency, which records: "By adding fins between the pillow-shaped heat exchange plates, the heat transfer area is increased and the heat exchange effect is improved. The present invention also includes a fan and an air guide plate. The fan is used to supply air between the pillow-shaped heat exchange plates. The incoming air serves as a third medium to increase convection and has a wider range of applications. Connecting pipes are provided between the pillow-shaped heat exchange plates and the fins to ensure the parallelism between the pillow-shaped heat exchange plates and the fins, thereby improving the heat exchange effect." It also records: "Heat exchange is achieved through the plate wall. This method has a low heat exchange efficiency and cannot meet the heat exchange needs in some fields." Technical problems.

[0004] In summary, it can be seen that the existing technology uses the media inside the flow channel and the heat exchange tube for heat exchange. However, this method has the following technical problems: However, the contact area between the heat exchange tube and the flow channel in the above-mentioned device is relatively small, which leads to a relatively low heat exchange effect between the heat exchange tube and the medium in the flow channel. For this reason, the present application proposes a high-pressure pillow-type plate heat exchanger and method for chemical incineration, which provides a new technical solution to solve the technical problems mentioned in the above-mentioned patent. Summary of the Invention

[0005] Based on this, it is necessary to provide a high-pressure pillow-type plate heat exchanger and method for chemical incineration in response to the above-mentioned technical problems. The coolant circulates between two adjacent support plates, between the support plate farthest from the extrusion plate and the device shell, and between the extrusion plate and the support plate adjacent to it. As the exhaust gas passes through the extrusion plate and multiple support plates one by one, the exhaust gas continuously fills into the shape of the corresponding gas groove, and then exchanges heat with the coolant on one side or both sides. The exhaust gas exchanges heat with the coolant on both sides, and continuously exchanges heat with the coolant at different positions during the circulation of the exhaust gas, which increases the area of ​​heat exchange between the exhaust gas and the coolant, thereby improving the overall heat exchange effect between the exhaust gas and the coolant.

[0006] In order to solve the above technical problems, the present invention adopts the following technical solutions: The invention discloses a high-pressure pillow-type plate heat exchanger for chemical incineration, which is applied to cooling waste gas from chemical incineration.

[0007] The high-pressure pillow-type plate heat exchanger for chemical incineration specifically includes: The device housing and the top cover are detachably connected to the top cover via bolts. The device housing is provided with a cooling mechanism. The inner wall of the device housing is fixedly connected to a water inlet pipe. The inner wall of the device housing is fixedly connected to a water outlet pipe above the water inlet pipe. The water inlet pipe is provided with an auxiliary mechanism. The cooling mechanism includes a protective shell, a support plate, an extrusion plate, an extrusion assembly, a rotating assembly, a splicing assembly, a connecting assembly, and a ventilation assembly. The inner wall of the device shell is fixedly connected to the protective shell, the inner wall of the device shell is slidably connected to multiple support plates, and the inner wall of the device shell is slidably connected to the extrusion plate.

[0008] As a preferred embodiment of the high-pressure pillow-type plate heat exchanger and method for chemical incineration provided by the present invention, the extrusion assembly includes a bidirectional threaded rod, the inner wall of the device shell is rotatably connected to the bidirectional threaded rod, the outer wall of the bidirectional threaded rod is fixedly connected to two retaining rings, the outer wall of the bidirectional threaded rod and the side away from each other of the two retaining rings are respectively threadedly connected to the internal thread blocks, the outer walls of the two internal threaded blocks are fixedly connected to T-shaped sliders, the T-shaped sliders are slidably connected to the inner wall of the device shell, the outer walls of the two internal threaded blocks are rotatably connected to connecting rods, and the two connecting rods are rotatably connected to the outer wall of the extrusion plate.

[0009] As a preferred embodiment of the high-pressure pillow-type plate heat exchanger and method for chemical incineration provided by the present invention, the rotating assembly includes a first bevel gear, the outer wall of the bidirectional threaded rod is fixedly connected to the first bevel gear, the inner wall rotating platform of the device housing is connected to the rotating rod, the outer wall of the rotating rod is fixedly connected to the second bevel gear, and the second bevel gear is engaged with the outer wall of the first bevel gear.

[0010] As a preferred embodiment of the high-pressure pillow-type plate heat exchanger and method for chemical incineration provided by the present invention, the splicing assembly includes a limiting insert ring, the outer wall of the extrusion plate and the outer walls of the multiple support plates are respectively fixedly connected with limiting insert rings, the device housing and the multiple support plates are respectively provided with slots, and the multiple slots are fixedly connected with sealing gaskets, and the limiting insert rings are adapted to the slots.

[0011] As a preferred embodiment of the high-pressure pillow-type plate heat exchanger and method for chemical incineration provided by the present invention, the connecting component includes a connecting hole, and two upper and lower connecting holes are opened on each of the plurality of support plates.

[0012] As a preferred embodiment of the high-pressure pillow-type plate heat exchanger and method for chemical incineration provided by the present invention, the ventilation assembly includes an air groove, and air grooves are respectively provided on the extrusion plate and the multiple support plates. The support plate farthest from the extrusion plate and the outer wall of the extrusion plate are respectively detachably installed with a connecting pipe through an inner hexagonal threaded joint. The extrusion plate and the support plate adjacent to it are connected by a stainless steel hose, and the two adjacent support plates are connected by a stainless steel hose. The extrusion plate and the inner walls of the multiple support plates are respectively fixedly connected with L-shaped baffles.

[0013] As a preferred embodiment of the high-pressure pillow-type plate heat exchanger and method for chemical incineration provided by the present invention, the auxiliary mechanism includes a cross, a fixing ring, an injection assembly, and a crushing assembly. The inner wall of the water inlet pipe is fixedly connected to the cross, and the inner wall of the water inlet pipe is fixedly connected to the fixing ring.

[0014] As a preferred embodiment of the high-pressure pillow-type plate heat exchanger and method for chemical incineration provided by the present invention, the injection assembly includes a fixed pipe, and two fixed pipes are fixedly connected to the inner wall of the water inlet pipe, and the two fixed pipes are respectively fixedly installed with a limiting valve for limiting liquid circulation.

[0015] As a preferred embodiment of the high-pressure pillow-type plate heat exchanger and method for chemical incineration provided by the present invention, the crushing assembly includes a threaded shell, the inner wall of the water inlet pipe is detachably connected to the threaded shell through a thread, the outer wall of the threaded shell is fixedly connected to a blocking net, the inner wall of the blocking net is rotatably connected to a transmission shaft, the transmission shaft is movably inserted in a cross, the outer wall of the transmission shaft is fixedly connected to a blade, and the outer wall of the transmission shaft is fixedly connected to a fan blade.

[0016] As a preferred embodiment of the high-pressure pillow-type plate heat exchanger and method for chemical incineration provided by the present invention, the following steps are included: S: Connect the outlet of the external coolant circulation pump to the water inlet pipe, and connect the inlet of the coolant circulation pump to the water outlet pipe, and connect the waste gas from chemical incineration to the connecting pipe on the extrusion plate; S: The coolant circulation pump controls the coolant to enter the device from the water inlet pipe. The coolant flows into the spaces between adjacent support plates and between the support plate and the extrusion plate, and then flows out through the water outlet pipe. S: The exhaust gas is passed into the extrusion plate through the connecting pipe, and then flows through multiple stainless steel hoses one by one through the support plates, and finally flows out through the connecting pipe on the support plate farthest from the extrusion plate. During this process, the exhaust gas and the coolant are heat exchanged. Compared with the prior art, the present invention has the following beneficial effects: 1. The high-pressure pillow-type plate heat exchanger for chemical incineration provided by the present invention circulates coolant between two adjacent support plates, between the support plate farthest from the extrusion plate and the device shell, and between the extrusion plate and the support plate adjacent thereto. As the exhaust gas passes through the extrusion plate and multiple support plates one by one, the exhaust gas continuously fills into the shape of the corresponding gas groove, and then exchanges heat with the coolant on one side or both sides. The exhaust gas exchanges heat with the coolant on both sides, and continuously exchanges heat with the coolant at different positions during the circulation of the exhaust gas, which increases the area of ​​heat exchange between the exhaust gas and the coolant, thereby improving the overall heat exchange effect between the exhaust gas and the coolant.

[0017] 2. The high-pressure pillow-type plate heat exchanger for chemical incineration provided by the present invention can quickly adjust the position of the extrusion plate in the device shell through the extrusion component and the rotation component, and then multiple support plates can be squeezed or released, which makes it convenient for subsequent operators to replace and repair damaged support plates, thereby improving the practicality of the device. In addition, the number of support plates in the device shell can be flexibly adjusted according to the use of the equipment, and the overall contact area between the exhaust gas and the coolant can be adjusted accordingly. The number of support plates can be adjusted according to the actual demand for exhaust gas heat exchange, and the effect of heat exchange between the exhaust gas and the coolant can be adjusted. On the basis of meeting the use requirements, unnecessary material waste is reduced, and the flexibility of device use is improved.

[0018] 3. The high-pressure pillow-type plate heat exchanger for chemical incineration provided by the present invention facilitates subsequent operators to inject auxiliary agents such as detergents, disinfectants or corrosion inhibitors according to the actual usage of the circulating water in the water inlet pipe, or to remove part of the circulating water through the injection component. At the same time, when the water passes through the water inlet pipe, it can drive the crushing component to operate, thereby crushing the scale in the circulating water to reduce the situation where the scale blocks the coolant circulation, and at the same time increase the contact area between the scale and the detergent, thereby improving the scale cleaning effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the overall structure of the high-pressure pillow-type plate heat exchanger for chemical incineration provided by the present invention; Figure 2 This is a schematic diagram of the expanded structure of the high-pressure pillow-type plate heat exchanger for chemical incineration provided by the present invention; Figure 3 A schematic diagram of the internal structure of the device housing of the high-pressure pillow-type plate heat exchanger for chemical incineration provided by the present invention; Figure 4 A schematic diagram of the internal structure of a portion of the housing of a high-pressure pillow-type plate heat exchanger for chemical incineration provided by the present invention; Figure 5This is an enlarged structural diagram of the extrusion assembly and the rotating assembly of the high-pressure pillow-type plate heat exchanger for chemical incineration provided by the present invention; Figure 6 A schematic diagram of the internal structure of the device housing, support plate and extrusion plate of the high-pressure pillow-type plate heat exchanger for chemical incineration provided by the present invention; Figure 7 A schematic diagram of the separation structure of the protective shell and the device shell of the high-pressure pillow-type plate heat exchanger for chemical incineration provided by the present invention; Figure 8 This is an enlarged structural diagram of part of the splicing components, connecting components and ventilation components of the high-pressure pillow-type plate heat exchanger for chemical incineration provided by the present invention; Figure 9 A schematic diagram of the internal structure of the protective shell and support plate of the high-pressure pillow-type plate heat exchanger for chemical incineration provided by the present invention; Figure 10 A schematic diagram of the internal structure of the water inlet pipe of the high-pressure pillow-type plate heat exchanger for chemical incineration provided by the present invention; Figure 11 This is a schematic diagram of the enlarged structure of part of the auxiliary mechanisms of the high-pressure pillow-type plate heat exchanger for chemical incineration provided by the present invention.

[0020] The markings in the figure are as follows: 1. Device housing; 2. Top cover; 3. Cooling mechanism; 4. Water inlet pipe; 5. Water outlet pipe; 6. Auxiliary mechanism; 7. Protective shell; 8. Support plate; 9. Extrusion plate; 10. Bidirectional threaded rod; 11. Retaining ring; 12. Connecting rod; 13. Internal thread block; 14. T-shaped slider; 15. First bevel gear; 16. Rotating rod; 17. Second bevel gear; 18. Restriction insert ring; 19. Slot; 20. Sealing gasket; 21. Connecting hole; 22. Air groove; 23. Stainless steel hose; 24. Connecting pipe; 25. Fixed pipe; 26. Restriction valve; 27. Cross; 28. Fixed ring; 29. ​​Threaded shell; 30. Blocking net; 31. Drive shaft; 32. Blade; 33. Fan blade; 34. L-shaped baffle. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention; it is obvious that the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention. Example

[0022] Specifically, please refer to Figure 1-Figure 3 , high-pressure pillow-type plate heat exchanger for chemical incineration, specifically including: The device housing 1 and the top cover 2 are detachably connected to the top cover 2 by bolts. The device housing 1 is provided with a cooling mechanism 3. The inner wall of the device housing 1 is fixedly connected to a water inlet pipe 4. The inner wall of the device housing 1 is fixedly connected to a water outlet pipe 5 above the water inlet pipe 4. The water inlet pipe 4 is provided with an auxiliary mechanism 6. The cooling mechanism 3 includes a protective shell 7, a support plate 8, an extrusion plate 9, an extrusion assembly, a rotating assembly, a splicing assembly, a connecting assembly, and a ventilation assembly. The inner wall of the device shell 1 is fixedly connected to the protective shell 7, the inner wall of the device shell 1 is slidably connected to multiple support plates 8, and the inner wall of the device shell 1 is slidably connected to the extrusion plate 9.

[0023] The high-pressure pillow-type plate heat exchanger for chemical incineration provided by the present invention circulates coolant between two adjacent support plates 8, between the support plate 8 farthest from the extrusion plate 9 and the device shell 1, and between the extrusion plate 9 and the support plate 8 adjacent thereto. As the exhaust gas passes through the extrusion plate 9 and the interior of multiple support plates 8 one by one, the exhaust gas continuously fills into the shape of the corresponding gas groove 22, and then exchanges heat with the coolant on one side or both sides. The exhaust gas exchanges heat with the coolant on both sides, and continuously exchanges heat with the coolant at different positions during the flow of the exhaust gas, which increases the area of ​​heat exchange between the exhaust gas and the coolant, thereby improving the overall heat exchange effect between the exhaust gas and the coolant.

[0024] In order to enable those skilled in the art to better understand the solutions of the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Example 1

[0025] Please refer to Figures 1-9 , a high-pressure pillow-type plate heat exchanger for chemical incineration, comprising: The device housing 1 and the top cover 2, the top of the device housing 1 is detachably connected to the top cover 2 by bolts, the device housing 1 is provided with a cooling mechanism 3, the inner wall of the device housing 1 is fixedly connected to a water inlet pipe 4, the inner wall of the device housing 1 and located above the water inlet pipe 4 is fixedly connected to a water outlet pipe 5, an auxiliary mechanism 6 is provided on the water inlet pipe 4, the water inlet pipe 4 and the water outlet pipe 5 are respectively connected to the outlet and the inlet of the coolant circulation pump through pipes and sealed, and a device for cooling the coolant, such as a cooling tower, can be provided outside the pipe to increase the temperature difference between the coolant and the exhaust gas, thereby improving the heat exchange effect between the exhaust gas and the coolant. In addition, the device for cooling the coolant is a mature existing technology, so it will not be described in detail. The water inlet pipe 4 and the water outlet pipe 5 can be connected to the pipe through a sealing flange; The cooling mechanism 3 includes a protective shell 7, a support plate 8, an extrusion plate 9, an extrusion assembly, a rotating assembly, a splicing assembly, a connecting assembly, and a ventilation assembly. The inner wall of the device shell 1 is fixedly connected to the protective shell 7, and the inner wall of the device shell 1 is slidably connected to multiple support plates 8. The inner wall of the device shell 1 is slidably connected to the extrusion plate 9. The cooling mechanism 3 can enable a larger area of ​​heat exchange between the exhaust gas and the coolant, thereby improving the overall heat exchange effect of the exhaust gas. The connecting pipe 24 and the stainless steel hose 23 are both arranged in the protective shell 7, which is convenient for subsequent operators to perform unified maintenance operations.

[0026] The extrusion assembly includes a bidirectional threaded rod 10, the inner wall of the device housing 1 is rotatably connected to the bidirectional threaded rod 10, the outer wall of the bidirectional threaded rod 10 is fixedly connected to two retaining rings 11, the outer wall of the bidirectional threaded rod 10 and the side located away from each other by the two retaining rings 11 are respectively threadedly connected with an internal thread block 13, the outer walls of the two internal thread blocks 13 are fixedly connected with a T-shaped slider 14, the T-shaped slider 14 is slidably connected to the inner wall of the device housing 1, the outer walls of the two internal thread blocks 13 are rotatably connected to the connecting rod 12, and the two connecting rods 12 are rotatably connected to the outer wall of the extrusion plate 9. The detachable connection between the top cover 2 and the device housing 1 facilitates the operator to subsequently add lubricating fluid to the outer wall of the bidirectional threaded rod 10, the two ends of the internal thread block 13 and between the T-shaped slider 14 and the device housing 1.

[0027] The rotating assembly includes a first bevel gear 15, the outer wall of the bidirectional threaded rod 10 is fixedly connected to the first bevel gear 15, the inner wall rotating platform of the device housing 1 is connected to the rotating rod 16, the outer wall of the rotating rod 16 is fixedly connected to the second bevel gear 17, the second bevel gear 17 is engaged with the outer wall of the first bevel gear 15, and the end of the rotating rod 16 away from the second bevel gear 17 is fixedly connected to a non-slip handle for facilitating the rotation of the rotating rod 16.

[0028] The splicing assembly includes a limiting insert 18, and the outer wall of the extrusion plate 9 and the outer walls of the multiple support plates 8 are respectively fixedly connected with the limiting insert 18. Slots 19 are respectively opened on the device housing 1 and the multiple support plates 8. Sealing gaskets 20 are fixedly connected in the multiple slots 19. The limiting insert 18 is adapted to the slot 19. The limiting insert 18 can be inserted into the corresponding slot 19, and the limiting insert 18 can squeeze the corresponding sealing gasket 20 to reduce the leakage of the coolant. The exhaust gas inside the limiting insert 18 can be heat exchanged with the coolant on both sides of the limiting insert 18, and the exhaust gas in the slot 19 can be heat exchanged with the coolant on the side close to the limiting insert 18 through the slot 19.

[0029] The communication component includes a communication hole 21 . Two upper and lower communication holes 21 are formed on each of the plurality of support plates 8 . The communication holes 21 are not connected to the air groove 22 .

[0030] The ventilation assembly includes an air groove 22, and air grooves 22 are respectively opened on the extrusion plate 9 and multiple support plates 8. The support plate 8 farthest from the extrusion plate 9 and the outer wall of the extrusion plate 9 are respectively detachably installed with a connecting pipe 24 through an inner hexagonal threaded joint. The extrusion plate 9 and the support plate 8 adjacent to it are connected by a stainless steel hose 23, and the two adjacent support plates 8 are connected by a stainless steel hose 23. The extrusion plate 9 and the inner walls of multiple support plates 8 are respectively fixedly connected with an L-shaped baffle 34, and the stainless steel hose 23 and the connecting pipe 24 are both sealedly connected to the support plate 8 or the extrusion plate 9 through an inner hexagonal threaded joint and a corresponding outer threaded joint. It is worth mentioning that relying on the inner hexagonal threaded joint and the outer thread to install the pipeline is a technical means of installing pipelines well known to those skilled in the art, and belongs to the existing technology, so it will not be elaborated on. The L-shaped baffle 34 separates the air inlet position and the air outlet position of the corresponding air groove 22, so that the exhaust gas enters the next air groove 22 only after filling the air groove 22, ensuring sufficient contact between the exhaust gas and the coolant.

[0031] After the first screwdriver is driven by the cam 14, the first gear 15 is rotated, and the second gear 15 is rotated, so that the first gear 15 is rotated and the second gear 15 is rotated. At the same time, the two internal thread blocks 13 are moved away from each other under the restriction of the T-shaped slider 14 and the device housing 1, and the extrusion plate 9 is driven to move inside the device housing 1 by the corresponding connecting rod 12, and the multiple support plates 8 are squeezed so that the connections between the multiple support plates 8 and between the support plates 8 and the extrusion plate 9 are sealed. Then the water inlet pipe 4 and the water outlet pipe 5 are respectively connected to the outlet and inlet of the coolant circulation pump through pipes for sealing connection. Then, the two internal thread blocks 13 are moved away from each other under the restriction of the T-shaped slider 14 and the device housing 1, and the extrusion plate 9 is driven to move inside the device housing 1, and the multiple support plates 8 are squeezed so that the connections between the multiple support plates 8 and between the support plates 8 and the extrusion plate 9 are sealed. An appropriate amount of coolant is injected into the water inlet pipe 4 by the injection assembly in the auxiliary mechanism 6. The coolant enters the space between the support plate 8 farthest from the extrusion plate 9 and the device housing 1, between the two adjacent support plates 8, and between the extrusion plate 9 and the adjacent support plate 8 through the water inlet pipe 4, and then flows out through the water outlet pipe 5. The coolant circulation pump can then be used to drive the coolant circulation. The exhaust gas can then be injected into the extrusion plate 9 through the connecting pipe 24 on the extrusion plate 9. The exhaust gas passes through the corresponding L-shaped baffle 34 and fills the inside of the extrusion plate 9 from bottom to top. Then, it passes through the top of the extrusion plate 9 and enters the space surrounded by the inner wall of the extrusion plate 9 and the L-shaped baffle 34, and then fills from top to bottom. Then, it flows through the stainless steel hose 23 to the adjacent support plate 8, first filling the space formed by the inner wall of the support plate 8 and the corresponding L-shaped baffle 34, and then fills the remaining positions and flows into the next support plate 8, and finally flows out through the last support plate 8. In this process, the exhaust gas continuously exchanges heat with the coolant. Example 2

[0032] The high-pressure pillow-type plate heat exchanger for chemical incineration provided in Example 1 is further optimized. Specifically, Figures 1-10 As shown, the auxiliary mechanism 6 includes a cross 27, a fixing ring 28, an injection assembly, and a crushing assembly. The inner wall of the water inlet pipe 4 is fixedly connected with the cross 27, the inner wall of the water inlet pipe 4 is fixedly connected with the fixing ring 28, and an automatic exhaust valve is provided on the water outlet pipe 5. The setting of the automatic exhaust valve is a conventional setting, so it will not be described in detail.

[0033] The injection assembly includes a fixed pipe 25. Two fixed pipes 25 are fixedly connected to the inner wall of the water inlet pipe 4. Restriction valves 26 for restricting the flow of liquid are fixedly installed on the two fixed pipes 25. Operating the restriction valve 26 can control whether the liquid can flow through the fixed pipe 25, and then cooling water can be injected into the device or auxiliary agents such as detergents, disinfectants or corrosion inhibitors can be injected. This part of the content is for technicians in this field.

[0034] The crushing assembly includes a threaded shell 29. The inner wall of the water inlet pipe 4 is detachably connected to the threaded shell 29 through a thread. The outer wall of the threaded shell 29 is fixedly connected to a blocking net 30. The inner wall of the blocking net 30 is rotatably connected to a transmission shaft 31. The transmission shaft 31 is movably inserted into the cross 27. The outer wall of the transmission shaft 31 is fixedly connected to a blade 32. The outer wall of the transmission shaft 31 is fixedly connected to a fan blade 33. The crushing assembly can crush the scale in the circulating coolant, and the process does not require additional power support, making the device more energy-efficient. The blocking net 30 can have a certain blocking effect on the scale flowing with the coolant, thereby improving the scale crushing effect of the blade 32.

[0035] The method for using a high-pressure pillow-type plate heat exchanger for chemical incineration includes the following steps: S1: The outlet of the external coolant circulation pump is connected to the water inlet pipe 4, and the inlet of the coolant circulation pump is connected to the water outlet pipe 5, so that the waste gas from the chemical incineration is connected to the connecting pipe 24 on the extrusion plate 9; S2: The coolant circulation pump controls the coolant to enter the device from the water inlet pipe 4, and the coolant flows into the spaces between the adjacent support plates 8 and between the support plates 8 and the extrusion plates 9, and then flows out through the water outlet pipe 5; S3: The exhaust gas is passed into the extrusion plate 9 through the connecting pipe 24, and then flows through the support plates 8 one by one through multiple stainless steel hoses 23, and finally flows out through the connecting pipe 24 on the support plate 8 farthest from the extrusion plate 9. During this process, the exhaust gas and the coolant exchange heat.

[0036] With the above structural design, when injecting cooling water into the device, one of the fixed pipes 25 is connected to the water pipe via a sealing flange, and the water pipe is connected to the water injection pump. At the same time, the limiting valve 26 on the fixed pipe 25 is opened, and the cooling water is allowed to flow into the pipe by the water injection pump. At this time, the limiting valve 26 on the other fixed pipe 25 is ensured to be closed. After injecting the appropriate amount of water, the limiting valve 26 can be closed. When it is necessary to add auxiliary agents, the limiting valve 26 on one of the fixed pipes 25 is opened, and after draining a certain amount of cooling water, the corresponding limiting valve 26 is closed. After connecting the other fixed pipe 25 to the corresponding injection pump, the limiting valve 26 on it is opened, and then the same amount of cooling water can be injected and drained. When water flows into the device housing 1 through the water inlet pipe 4, the water flow drives the transmission shaft 31 to rotate due to the fan blades 33. The rotation of the transmission shaft 31 drives the blades 32 to rotate, thereby breaking up scale in the coolant.

[0037] The above description is only a preferred specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any technician familiar with the technical field, within the technical scope disclosed by the present invention, who makes equivalent replacements or changes based on the technical solution and inventive concept of the present invention, should be covered by the scope of protection of the present invention.

Claims

1. A high-pressure pillow-type plate heat exchanger for chemical incineration, comprising a device housing (1) and a top cover (2), characterized in that: The top of the device housing (1) is detachably connected to a top cover (2) via bolts, a cooling mechanism (3) is provided on the device housing (1), a water inlet pipe (4) is fixedly connected to the inner wall of the device housing (1), a water outlet pipe (5) is fixedly connected to the inner wall of the device housing (1) and located above the water inlet pipe (4), and an auxiliary mechanism (6) is provided on the water inlet pipe (4); The cooling mechanism (3) comprises a protective shell (7), a support plate (8), an extrusion plate (9), an extrusion assembly, a rotation assembly, a splicing assembly, a connecting assembly, and a ventilation assembly; the inner wall of the device housing (1) is fixedly connected to the protective shell (7); the inner wall of the device housing (1) is slidably connected to a plurality of support plates (8); and the inner wall of the device housing (1) is slidably connected to the extrusion plate (9).

2. The high-pressure pillow-type plate heat exchanger for chemical incineration according to claim 1, characterized in that: The extrusion assembly includes a bidirectional threaded rod (10), the inner wall of the device housing (1) is rotatably connected to the bidirectional threaded rod (10), the outer wall of the bidirectional threaded rod (10) is fixedly connected to two retaining rings (11), the outer wall of the bidirectional threaded rod (10) and located on the side away from each other of the two retaining rings (11) are respectively threadedly connected to internal thread blocks (13), the outer walls of the two internal thread blocks (13) are fixedly connected to T-shaped sliders (14), the T-shaped sliders (14) are slidably connected to the inner wall of the device housing (1), the outer walls of the two internal thread blocks (13) are rotatably connected to connecting rods (12), and the two connecting rods (12) are rotatably connected to the outer wall of the extrusion plate (9).

3. The high-pressure pillow-type plate heat exchanger for chemical incineration according to claim 2, characterized in that: The rotating assembly comprises a first bevel gear (15), the outer wall of the bidirectional threaded rod (10) is fixedly connected to the first bevel gear (15), the inner wall rotating platform of the device housing (1) is connected to a rotating rod (16), the outer wall of the rotating rod (16) is fixedly connected to a second bevel gear (17), and the second bevel gear (17) is meshed with the outer wall of the first bevel gear (15).

4. The high-pressure pillow-type plate heat exchanger for chemical incineration according to claim 1, characterized in that: The splicing assembly includes a limiting insert ring (18), the outer wall of the extrusion plate (9) and the outer walls of the plurality of support plates (8) are respectively fixedly connected with the limiting insert ring (18), the device housing (1) and the plurality of support plates (8) are respectively provided with slots (19), the plurality of slots (19) are each fixedly connected with a sealing gasket (20), and the limiting insert ring (18) is adapted to the slots (19).

5. The high-pressure pillow-type plate heat exchanger for chemical incineration according to claim 4, characterized in that: The communication component comprises a communication hole (21), and two upper and lower communication holes (21) are provided on each of the plurality of support plates (8).

6. The high-pressure pillow-type plate heat exchanger for chemical incineration according to claim 1, characterized in that: The ventilation assembly includes an air groove (22), the extrusion plate (9) and the plurality of support plates (8) are respectively provided with an air groove (22), the support plate (8) farthest from the extrusion plate (9) and the outer wall of the extrusion plate (9) are respectively detachably mounted with a connecting pipe (24) via an inner hexagonal threaded joint, the extrusion plate (9) and the adjacent support plate (8) are connected via a stainless steel hose (23), and two adjacent support plates (8) are both connected via a stainless steel hose (23), and the extrusion plate (9) and the inner walls of the plurality of support plates (8) are respectively fixedly connected with an L-shaped baffle (34).

7. The high-pressure pillow-type plate heat exchanger for chemical incineration according to claim 1, characterized in that: The auxiliary mechanism (6) comprises a cross (27), a fixing ring (28), an injection assembly, and a crushing assembly. The inner wall of the water inlet pipe (4) is fixedly connected to the cross (27), and the inner wall of the water inlet pipe (4) is fixedly connected to the fixing ring (28).

8. The high-pressure pillow-type plate heat exchanger for chemical incineration according to claim 7, characterized in that: The injection assembly comprises fixed pipes (25), the inner wall of the water inlet pipe (4) is fixedly connected to two fixed pipes (25), and a limiting valve (26) for limiting the circulation of liquid is fixedly mounted on each of the two fixed pipes (25).

9. The high-pressure pillow-type plate heat exchanger for chemical incineration according to claim 7, characterized in that: The crushing assembly includes a threaded shell (29), the inner wall of the water inlet pipe (4) is detachably connected to the threaded shell (29) through a thread, the outer wall of the threaded shell (29) is fixedly connected to a blocking net (30), the inner wall of the blocking net (30) is rotatably connected to a transmission shaft (31), the transmission shaft (31) is movably inserted into the cross (27), the outer wall of the transmission shaft (31) is fixedly connected to a blade (32), and the outer wall of the transmission shaft (31) is fixedly connected to a fan blade (33).

10. A method for using a high-pressure pillow plate heat exchanger for chemical incineration according to any one of claims 1 to 9, characterized in that: The following steps are involved: S1: The outlet of the externally provided coolant circulation pump is connected to the water inlet pipe (4), and the inlet of the coolant circulation pump is connected to the water outlet pipe (5), and the waste gas from the chemical incineration is connected to the connecting pipe (24) on the extrusion plate (9); S2: The coolant circulation pump controls the coolant to enter the device from the water inlet pipe (4), and the coolant flows out through the water outlet pipe (5) after entering between each adjacent support plate (8) and between the support plate (8) and the extrusion plate (9); S3: The exhaust gas is introduced into the extrusion plate (9) through the connecting pipe (24), and then flows through the support plates (8) one by one through multiple stainless steel hoses (23), and finally flows out through the connecting pipe (24) on the support plate (8) farthest from the extrusion plate (9). During this process, the exhaust gas and the coolant exchange heat.

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