Detachable plate heat exchanger

Abstract

The invention discloses a detachable plate heat exchanger, and relates to the technical field of plate heat exchangers, the detachable plate heat exchanger comprises a plurality of heat exchange plates, and further comprises a mounting auxiliary mechanism, and the mounting auxiliary mechanism is arranged on the surfaces of the heat exchange plates; the installation auxiliary mechanism comprises guide rods inserted into the two sides of the multiple heat exchange plates, the front sections of the guide rods are sleeved with movable pressing plates, the rear sections of the guide rods are sleeved with fixed pressing plates, the multiple heat exchange plates are located between the movable pressing plates and the fixed pressing plates, the front ends of the guide rods are sleeved with movable pressing frames, and the rear ends of the guide rods are sleeved with movable pressing frames. A threaded barrel is fixedly connected to the middle of the movable pressing frame, a bolt is inserted into the threaded barrel in a threaded mode, and four fluid channel holes are formed in the surface of each of the heat exchange plate, the movable pressing plate and the fixed pressing plate so that the problem that due to the fact that bolts are not fixed synchronously, sealing of the side edges of the heat exchange plate fails due to dislocation can be solved. And the sealing performance and the heat exchange effect of the heat exchanger are influenced.

Description

Technical Field

[0001] This invention relates to the field of plate heat exchanger technology, and more specifically, to a detachable plate heat exchanger. Background Technology

[0002] Plate heat exchangers consist of heat exchange plates, gaskets, fixed clamping plates, movable clamping plates, and clamping bolts. They rely on gaskets to achieve inter-plate sealing and bolt clamping to form closed flow channels, allowing hot and cold fluids to flow alternately within the flow channels on both sides of the plates to achieve efficient heat exchange. The entire plate bundle can be disassembled by loosening the bolts, facilitating cleaning, descaling, maintenance, and replacement of plates or gaskets. The number of plates and flow channel combinations can also be adjusted according to operating conditions.

[0003] After disassembling a detachable plate heat exchanger for cleaning, descaling, maintenance, and replacement of plates or gaskets, the heat exchange plates need to be reassembled. During assembly, multiple sets of clamping bolts are used to press and fix the plate bundle. However, in actual installation, operators usually tighten some bolts on one side first, and then gradually tighten the bolts on the other side. This operation method can easily cause physical displacement of the heat exchange plates during the pressing process. When there are many heat exchange plates, the displacement problem will be further aggravated, eventually causing the side seals of the heat exchange plates to misalign and fail, directly affecting the sealing performance and heat exchange effect of the heat exchanger. Summary of the Invention

[0004] In view of the problems existing in the prior art, the purpose of this invention is to provide a detachable plate heat exchanger to solve the problem that the side seals of the heat exchange plates fail due to asynchronous bolt fixing, which affects the sealing performance and heat exchange effect of the heat exchanger.

[0005] To solve the above problems, the present invention adopts the following technical solution: A detachable plate heat exchanger includes multiple heat exchange plates and an installation auxiliary mechanism disposed on the surface of the heat exchange plates. The installation auxiliary mechanism includes guide rods inserted into the interior of both sides of the multiple heat exchange plates. A movable clamping plate is sleeved on the front section of the guide rod, and a fixed clamping plate is sleeved on the rear section of the guide rod. The multiple heat exchange plates are located between the movable clamping plate and the fixed clamping plate. A movable clamping frame is sleeved on the front end of the guide rod, and a threaded cylinder is fixedly connected to the middle of the movable clamping frame. Bolts are inserted into the internal threads of the threaded cylinder.

[0006] Furthermore, the surfaces of the heat exchange plates, the movable clamping plate, and the fixed clamping plate are all provided with four fluid channel holes.

[0007] Furthermore, a fixing and clamping frame is fitted onto the rear section of the guide rod.

[0008] Furthermore, both the front and rear sections of the guide rod are threaded with nuts, which are used to fix the heat exchange plates, the movable pressure plate, and the fixed pressure plate.

[0009] Furthermore, it also includes a disassembly auxiliary mechanism, which is disposed on the surface of the guide rod. The disassembly auxiliary mechanism includes connecting rings that are slidably sleeved on the upper and lower sides and the front and rear sections of the guide rod. Side brackets are fixedly connected to the surfaces of the four connecting rings on the same side. The side brackets are X-shaped. A fixed circular plate is fixedly connected to the middle of the side brackets. A guide frame is fixedly connected to the surface of the fixed circular plate. A movable circular plate is slidably sleeved on the surface of the guide frame. A connecting frame is fixedly connected to the surface of the movable circular plate. Two support arms are fixedly connected to the longitudinal arm ends of the connecting frame. Cutting knives are fixedly connected to the surfaces of the two support arms.

[0010] Furthermore, a transmission rack is fixedly connected to the top of each of the two connecting frames, and two support frames are fixedly connected to the surface of the side bracket. A handle is rotatably inserted into the interior of each of the two support frames, and a transmission gear is fixedly connected between the two handles. The transmission gear meshes with the two transmission racks and is located between the two transmission racks.

[0011] Furthermore, it also includes a flow disturbance mechanism, which is disposed inside the fluid channel hole on the heat exchange plate. The flow disturbance mechanism includes a connecting bracket fixedly connected to the inside of the fluid channel hole on the heat exchange plate, a rotating shaft rotatably connected to the middle of the connecting bracket, and a disturbance arm fixedly connected to the surface of the rotating shaft.

[0012] Furthermore, a drive blade is fixedly sleeved on the surface of the rotating shaft.

[0013] Furthermore, a disturbance block is fixedly connected to the end of the disturbance arm away from the rotating shaft.

[0014] Furthermore, a flow-dispersing tube is fixedly inserted inside the disturbance block, and the flow-dispersing tube has a spiral tubular structure.

[0015] Compared with the prior art, the beneficial effects of the present invention are: (1) In this scheme, the bolt in the middle of the movable clamping plate is rotated so that the bolt presses against the surface of the movable clamping plate and pushes it to move, thereby pre-pressing multiple heat exchange plates. By utilizing the characteristic of the bolt applying force in the center, the thrust is made uniform, and the side seal is prevented from failing due to the displacement of the heat exchange plates.

[0016] (2) In this scheme, the rotation of the handle drives the transmission gear to rotate, which drives the two transmission racks and the connecting frame to move in opposite directions, so that the four cutting blades are inserted into the adhesive gaps at the same time, and the heat exchange plates are squeezed apart. The force is uniform by the simultaneous application of force by the four cutting blades, which reduces the probability of the heat exchange plates being bent.

[0017] (3) In this scheme, when the liquid flows inside the heat exchanger and passes through the fluid channel hole, the water flow drives the drive blade to rotate, which in turn drives the disturbance arm to rotate. The disturbance arm disturbs the flow state of the liquid in the heat exchange plate, reduces the accumulation of impurities caused by the low flow velocity at the edge of the plate, and prevents the heat exchange area from decreasing.

[0018] (4) This scheme can drive the disturbance block and the spiral tube to rotate synchronously through the disturbance arm, so that the liquid enters the disturbance tube and further disturbs the liquid flow inside the heat exchange plate, reducing the problem of impurity accumulation at the edge of the plate due to low flow velocity. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of the present invention; Figure 2 This is a schematic diagram of the structure of the movable clamping plate part of the present invention; Figure 3 This is a schematic diagram of the structure of the fixed clamping plate part of the present invention; Figure 4 This is a schematic diagram of the disassembly auxiliary mechanism of the present invention; Figure 5 This is a schematic diagram of the slitting blade part of the present invention; Figure 6 This is a schematic diagram of the transmission rack and transmission gear of the present invention; Figure 7 This is a schematic diagram of the heat exchange plate portion of the present invention; Figure 8 This is a schematic diagram of the structure of the drive blade part of the present invention; Figure 9 This is a schematic diagram of the structure of the baffle tube of the present invention.

[0020] Explanation of the labels in the diagram: 1. Heat exchange plates; 201. Movable clamping plate; 202. Guide rod; 203. Fixed clamping plate; 204. Nut; 205. Movable clamping frame; 206. Bolt; 207. Threaded cylinder; 208. Fixed clamping frame; 301. Side bracket; 302. Support frame; 303. Connecting ring; 304. Connecting frame; 305. Transmission rack; 306. Handle; 307. Cutting knife; 308. Guide frame; 309. Moving circular plate; 310. Fixed circular plate; 311. Support arm; 312. Transmission gear; 401. Drive blade; 402. Connecting bracket; 403. Disturbance arm; 404. Disturbance block; 405. Baffle tube; 406. Rotating shaft. Detailed Implementation

[0021] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0022] Please see Figures 1-3 A detachable plate heat exchanger includes multiple heat exchange plates 1 and an installation auxiliary mechanism disposed on the surface of the heat exchange plates 1. The installation auxiliary mechanism includes guide rods 202 inserted into the interior of both sides of the multiple heat exchange plates 1. A movable clamping plate 201 is sleeved on the front section of the guide rod 202, and a fixed clamping plate 203 is sleeved on the rear section of the guide rod 202. The multiple heat exchange plates 1 are located between the movable clamping plate 201 and the fixed clamping plate 203. The front end of the guide rod 202 is sleeved... A movable clamping frame 205 is provided, and a threaded cylinder 207 is fixedly connected to the middle of the movable clamping frame 205. A bolt 206 is inserted into the internal thread of the threaded cylinder 207. Four fluid channel holes are opened on the surface of the heat exchange plate 1, the movable clamping plate 201 and the fixed clamping plate 203. The rear section of the guide rod 202 is fitted with a fixed clamping frame 208. The front and rear sections of the guide rod 202 are threaded with nuts 204. The nuts 204 are used to fix the heat exchange plate 1, the movable clamping plate 201 and the fixed clamping plate 203.

[0023] By adopting the above technical solution, before fixing, the fixing and clamping frame 208 needs to be sleeved on the rear end of the guide rod 202, and the nuts 204 located at the rear end of the guide rod 202 should all be in contact with the back of the fixing and clamping frame 208. This can restrict the rearward movement of the fixing and clamping frame 208. Furthermore, the fact that all four nuts 204 located at the rear end of the guide rod 202 are in contact with the back of the fixing and clamping frame 208 can keep the fixing and clamping frame 208 under uniform force and prevent the fixing and clamping frame 208 from tilting. Subsequently, when installing and fixing the heat exchange plates 1, the movable clamping plate 201, the fixed clamping plate 203, and the multiple heat exchange plates 1 are threaded together through the guide rod 202, and the multiple heat exchange plates 1 are located between the movable clamping plate 201 and the fixed clamping plate 203. Then, the movable clamping frame 205 is sleeved on the front end of the guide rod 202. Then, the nut 204 is threaded onto the front end of the guide rod 202, but without applying pressure to the movable clamping plate 201, maintaining only a close distance. At this time, the bolt 206 is also close to the movable clamping plate 201. Then, rotating the bolt 206 will cause the bolt 206 to press against the surface of the movable clamping plate 201, pushing the movable clamping plate 201 to pre-tighten the multiple heat exchange plates 1. Since the bolt 206 is located in the middle of the movable clamping plate 201, it can provide a more uniform thrust during the process of pushing the movable clamping plate 201, preventing the heat exchange plates 1 from shifting during the clamping and fixing process, which would lead to the failure of the side seal. After completing the pre-tightening operation of the heat exchange plates 1, the remaining nuts 204 can be tightened to press the fixed clamping plate 203 and the movable clamping plate 201 to tighten the heat exchange plates 1.

[0024] like Figures 4-6 As shown, it also includes a disassembly auxiliary mechanism, which is disposed on the surface of the guide rod 202. The disassembly auxiliary mechanism includes connecting rings 303 that are slidably sleeved on the surface of the guide rod 202 on the upper and lower sides and the front and rear sections. Side brackets 301 are fixedly connected to the surfaces of the four connecting rings 303 on the same side. The side brackets 301 are X-shaped. A fixed circular plate 310 is fixedly connected to the middle of the side brackets 301. A guide frame 308 is fixedly connected to the surface of the fixed circular plate 310. A movable circular plate 309 is slidably sleeved on the surface of the guide frame 308. A connecting frame 304 is fixedly connected to the surface of the movable circular plate 309. Two support arms 311 are fixedly connected to the longitudinal arm end of the connecting frame 304. A cutting knife 307 is fixedly connected to the surface of each of the two support arms 311.

[0025] The top ends of the two connecting frames 304 are fixedly connected to a transmission rack 305. The surface of the side bracket 301 is fixedly connected to two support frames 302. The inside of the two support frames 302 is rotatably inserted with a handle 306. A transmission gear 312 is fixedly connected between the two handles 306. The transmission gear 312 meshes with the two transmission racks 305 and is located between the two transmission racks 305.

[0026] By adopting the above technical solution, when disassembling the heat exchange plates 1, the nut 204 is removed from the guide rod 202. If the multiple heat exchange plates 1 are too tightly attached and difficult to separate, the position of the side bracket 301 is first moved so that the cutting blade 307 is located at the gap where the heat exchange plates 1 are stuck together. Then, the drive gear 312 is rotated by rotating the handle 306. During the rotation of the drive gear 312, the two drive racks 305 and the connecting bracket 304 will move towards each other. Two transmission racks 305 are symmetrically meshed with the radial ends of the transmission gear 312. When the transmission gear 312 rotates, the two transmission racks 305 generate linear motions with opposite directions and equal displacements. This motion is synchronously applied to the four cutting blades 307 through the connecting frame 304 and the support arm 311, ensuring that they are synchronously inserted into the adhesive gaps along the horizontal axis under the constraint of the guide frame 308. This can squeeze the heat exchange plates 1 apart, and the force applied to the heat exchange plates 1 during this process is more uniform, reducing the probability of the heat exchange plates 1 being bent during disassembly.

[0027] like Figures 7-9 As shown, it also includes a turbulence-inducing mechanism, which is disposed inside the fluid channel hole on the heat exchange plate 1. The turbulence-inducing mechanism includes a connecting bracket 402 fixedly connected inside the fluid channel hole on the heat exchange plate 1. A rotating shaft 406 is rotatably connected to the middle of the connecting bracket 402. A disturbance arm 403 is fixedly connected to the surface of the rotating shaft 406. A driving blade 401 is fixedly sleeved on the surface of the rotating shaft 406. A disturbance block 404 is fixedly connected to one end of the disturbance arm 403 away from the rotating shaft 406. A turbulence-inducing tube 405 is fixedly inserted inside the disturbance block 404. The turbulence-inducing tube 405 has a spiral tubular structure.

[0028] By adopting the above technical solution, when the liquid flows inside the heat exchanger, it will pass through the fluid channel hole. At this time, the water flow will drive the drive blade 401 to rotate. During the rotation of the drive blade 401, it will drive the disturbance arm 403 to rotate. The disturbance arm 403 will disturb the flow of liquid inside the heat exchange plate 1, reduce the occurrence of impurity accumulation due to low flow velocity at the corners of the heat exchange plate 1, and avoid reducing the heat exchange area.

[0029] During the rotation of the disturbance arm 403, the disturbance block 404 and the turbulence tube 405 will also rotate, allowing the liquid to enter the spiral turbulence tube 405. Through the setting of the spiral turbulence tube 405, the fluid will generate local swirling flow, and the flow velocity in the dead zone at the corner will be increased, thereby further preventing the accumulation of impurities due to the low flow velocity at the corner of the heat exchange plate 1, which would lead to a smaller heat exchange area.

[0030] Instructions for use: First, fit the fixing and clamping frame 208 onto the rear end of the guide rod 202, so that all four nuts 204 at the rear end of the guide rod 202 are in contact with the back of the frame, restricting the frame from moving backward. At the same time, the uniform contact of the four nuts 204 maintains the force balance of the frame and prevents the frame from tilting. Next, the movable clamping plate 201, multiple heat exchange plates 1 and the fixed clamping plate 203 are sequentially passed through the guide rod 202, so that all heat exchange plates 1 are placed between the movable clamping plate 201 and the fixed clamping plate 203, and the basic assembly is completed. Next, the movable clamping frame 205 is fitted onto the front end of the guide rod 202, and the nut 204 is threaded onto the front end of the guide rod 202, so that the nut 204 is close to the movable clamping plate 201 without applying pressure. At this time, the bolt 206 is also close to the movable clamping plate 201. Next, rotate the bolt 206 in the middle of the movable clamping plate 201 so that the bolt 206 presses against the surface of the movable clamping plate 201 and pushes it to move, pre-tightening multiple heat exchange plates 1. By utilizing the characteristic of the bolt 206 applying force in the center, the thrust is ensured to be uniform, and the side seal is prevented from failing due to the displacement of the heat exchange plates 1. Finally, tighten the remaining nuts 204 on the guide rod 202. The nuts 204 apply force to make the fixed clamping plate 203 and the movable clamping plate 201 press the heat exchange plate 1 together, thus completing the overall installation and fixing. When disassembling heat exchange plate 1, first remove all nuts 204 on guide rod 202. If multiple heat exchange plates 1 are too tightly attached and difficult to separate, proceed to subsequent slit separation operation. First, adjust the position of the side support 301 so that the cutting blade 307 is aligned with the adhesive gap of the heat exchange plate 1. Next, rotating the handle 306 drives the transmission gear 312 to rotate, which in turn drives the two transmission racks 305 and the connecting frame 304 to move towards each other, so that the four cutting blades 307 are inserted into the adhesive gaps simultaneously, squeezing the heat exchange plates 1 apart. The simultaneous application of force by the four cutting blades 307 ensures uniform force and reduces the probability of the heat exchange plates 1 being bent. When the liquid flows inside the heat exchanger and passes through the fluid channel hole, the water flow drives the drive blade 401 to rotate, which in turn drives the disturbance arm 403 to rotate. The disturbance arm 403 disturbs the flow state of the liquid in the heat exchange plate 1, reduces the accumulation of impurities caused by the low flow velocity at the corners of the heat exchange plate 1, and prevents the heat exchange area from decreasing. At the same time, the disturbance arm 403 can drive the disturbance block 404 and the spiral tube-shaped turbulence tube 405 to rotate synchronously, so that the liquid enters the turbulence tube 405, further disturbing the liquid flow inside the heat exchange plate 1, and reducing the problem of impurity accumulation at the corners of the heat exchange plate 1 due to low flow velocity.

[0031] The above description is merely a preferred embodiment of the present invention; however, the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and its improved concepts, should be covered within the scope of protection of the present invention.

Claims

1. A detachable plate heat exchanger, comprising heat exchange plates (1), wherein the number of heat exchange plates (1) is plurality of, characterized in that: It also includes an installation auxiliary mechanism, which is disposed on the surface of the heat exchange plate (1). The installation auxiliary mechanism includes a guide rod (202) inserted into the interior of both sides of the plurality of heat exchange plates (1). The front section of the guide rod (202) is fitted with a movable clamping plate (201), and the rear section of the guide rod (202) is fitted with a fixed clamping plate (203). The plurality of heat exchange plates (1) are located between the movable clamping plate (201) and the fixed clamping plate (203). The front end of the guide rod (202) is fitted with a movable clamping frame (205), and a threaded cylinder (207) is fixedly connected to the middle of the movable clamping frame (205). Bolts (206) are inserted into the internal threads of the threaded cylinder (207).

2. A detachable plate heat exchanger according to claim 1, characterized in that: The heat exchange plate (1), the movable clamping plate (201) and the fixed clamping plate (203) are all provided with four fluid channel holes on their surfaces.

3. A detachable plate heat exchanger according to claim 1, characterized in that: The rear section of the guide rod (202) is fitted with a fixing and clamping frame (208).

4. A detachable plate heat exchanger according to claim 1, characterized in that: The front and rear sections of the guide rod (202) are threaded with nuts (204), which are used to fix the heat exchange plate (1), the movable pressure plate (201) and the fixed pressure plate (203).

5. A detachable plate heat exchanger according to claim 1, characterized in that: It also includes a disassembly auxiliary mechanism, which is disposed on the surface of the guide rod (202). The disassembly auxiliary mechanism includes connecting rings (303) that are slidably sleeved on the surface of the guide rod (202) on the upper and lower sides and the front and rear sections. Side brackets (301) are fixedly connected to the surface of the four connecting rings (303) on the same side. The side brackets (301) are X-shaped. A fixed circle plate (310) is fixedly connected to the middle of the side brackets (301). A guide frame (308) is fixedly connected to the surface of the fixed circle plate (310). A movable circle plate (309) is slidably sleeved on the surface of the guide frame (308). A connecting frame (304) is fixedly connected to the surface of the movable circle plate (309). Two support arms (311) are fixedly connected to the longitudinal arm end of the connecting frame (304). A cutting knife (307) is fixedly connected to the surface of each of the two support arms (311).

6. A detachable plate heat exchanger according to claim 5, characterized in that: The top ends of the two connecting frames (304) are fixedly connected to a transmission rack (305). The surface of the side bracket (301) is fixedly connected to two support frames (302). The inside of the two support frames (302) is rotatably inserted with a handle (306). A transmission gear (312) is fixedly connected between the two handles (306). The transmission gear (312) meshes with the two transmission racks (305) and is located between the two transmission racks (305).

7. A detachable plate heat exchanger according to claim 1, characterized in that: It also includes a turbulence mechanism, which is disposed inside the fluid channel hole on the heat exchange plate (1). The turbulence mechanism includes a connecting bracket (402) fixedly connected inside the fluid channel hole on the heat exchange plate (1). A rotating shaft (406) is rotatably connected to the middle of the connecting bracket (402), and a disturbance arm (403) is fixedly connected to the surface of the rotating shaft (406).

8. A detachable plate heat exchanger according to claim 7, characterized in that: The surface of the rotating shaft (406) is fixedly fitted with a drive blade (401).

9. A detachable plate heat exchanger according to claim 7, characterized in that: The disturbance arm (403) is fixedly connected to a disturbance block (404) at one end away from the rotating shaft (406).

10. A detachable plate heat exchanger according to claim 9, characterized in that: The disturbance block (404) is internally fixedly equipped with a turbulence tube (405), which has a spiral tube structure.

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