A double-wall plate heat exchanger

Abstract

The present invention discloses a double-wall plate heat exchanger, belonging to the field of heat exchangers, including a heat exchange plate, wherein the outer surface of the heat exchange plate is symmetrically provided with a guide groove 1 and a guide groove 2, and a diverter assembly is arranged inside the guide groove 2, and the diverter assembly includes a movable part and a flow bypass part, and the movable part includes a movable rod rotatably connected to the inner surface of the guide groove 2, and a support rod is fixedly connected to the outer surface of the movable rod. By setting the diverter assembly, the fluid inside the guide groove 1 can be disturbed by sliding a push rod inside the guide groove 1, so that the fluid flows irregularly inside the guide groove 1 and forms turbulence, and the momentum exchange between the fluids in the turbulent state is more frequent, which helps to break the thermal boundary layer in the fluid, thereby improving the heat exchange efficiency, and at the same time, the turbulence enables the fluid to fully contact the inner wall of the guide groove 1, thereby further improving the heat exchange effect of the heat exchange plate.

Description

Technical Field

[0001] The present invention relates to the field of heat exchangers, and more particularly to a double-wall plate heat exchanger. Background Art

[0002] Heat exchanger is an energy-saving device that realizes heat transfer between materials between fluids of different temperatures. It is also called heat exchanger. Heat exchangers include floating head type, fixed tube type and wall plate type. Plate heat exchanger has high heat transfer efficiency and heat recovery rate as well as good sealing performance. It is widely used in chemical, petroleum, power and food industries.

[0003] For example, a Chinese patent with announcement number CN220119924U discloses a double-walled plate heat exchanger. By setting a limit device and a protective device and quickly clamping and limiting the metal plate, the difficulty of disassembly and installation of the heat exchanger can be effectively reduced, which can not only reduce the time cost of using and maintaining the heat exchanger, but also effectively improve the use efficiency of the heat exchanger.

[0004] In a wall-plate heat exchanger, two fluids of different temperatures flow through the two sides of adjacent plates to exchange heat through the plates. In order to improve the heat transfer efficiency, corrugations need to be provided on the plate surface to increase the turbulence of the fluid. In the actual working process, the presence of corrugations will increase the resistance to fluid flow, which will not only increase the pressure drop of the fluid, but also reduce the flow rate of the fluid. When the flow rate of the fluid is reduced, the size of the turbulence formed by the corrugations will be reduced, which will in turn affect the heat exchange efficiency. Summary of the invention

[0005] In view of the problems existing in the prior art, the purpose of the present invention is to provide a double-walled plate heat exchanger, which can be realized by setting a diverter component and sliding a push rod inside the guide groove one, so as to disturb the fluid inside the guide groove one, so that the fluid flows irregularly inside the guide groove one and forms turbulence. In the turbulent state, the momentum exchange between the fluids is more frequent, which helps to break the thermal boundary layer in the fluid, thereby improving the heat exchange efficiency. At the same time, the turbulence enables the fluid to fully contact the inner wall of the guide groove one, thereby further improving the heat exchange effect of the heat exchange plate.

[0006] To solve the above problems, the present invention adopts the following technical solutions.

[0007] A double-wall plate heat exchanger, comprising a heat exchange plate, wherein a first guide groove and a second guide groove are symmetrically provided on the outer surface of the heat exchange plate, a flow diversion component is provided inside the second guide groove, and the flow diversion component comprises a movable part and a bypass part;

[0008] The movable part comprises a movable rod rotatably connected to the second inner surface of the guide groove, the outer surface of the movable rod is fixedly connected to a support rod, and one end of the support rod away from the movable rod is fixedly connected to a guide plate, and the outer surface of the guide plate is in an arc shape;

[0009] A support rod is fixedly connected to the inner surface of the guide groove, a push rod is slidably connected to the upper side of the outer surface of the support rod, a contact block 2 is fixedly connected to the outer surface of the push rod close to the guide plate, the contact block 2 is in sliding contact with the outer surface of the guide plate, a traction bar is fixedly connected to the end of the push rod away from the contact block 2, and the upper end of the traction bar is fixedly connected to the upper end of the inner surface of the guide groove.

[0010] Furthermore, the outer surface of the contact block 2 is arc-shaped, the number of the support rods and guide plates is several groups and distributed in a ring array, the guide groove 2 is vertical, the number of the guide groove 1 is several groups and distributed in a parallel array, the left and right ends of the guide groove 1 are connected to the inside of the guide groove 2, and the number of the heat exchange plates is several groups and distributed in a linear array.

[0011] Furthermore, a clamping assembly is provided on the outside of the heat exchange plate, and the clamping assembly includes a sliding seat fixedly connected to the outer surface of the lower end of the heat exchange plate, a guide rod is slidably connected to the inner side of the sliding seat, a movable plate is slidably connected to the outer surface of the guide rod, a fixed plate is fixedly connected to the rear end of the guide rod, and the outer surfaces of the lower ends of the movable plate and the fixed plate are both fixedly connected to support legs.

[0012] Furthermore, a screw is rotatably connected to the outer surface of the front end of the fixed plate, and an ear seat is symmetrically fixedly connected to the outer surface of the heat exchange plate, the ear seat is located on the outside of the screw and is in sliding contact with the screw, the screw passes through the front side of the movable plate and is in sliding contact with the movable plate, the outer surface of the screw is slidably connected to the movable plate, the outer surface of the screw is helically connected to a locking nut, and the outer surface of the locking nut is in rotational contact with the outer surface of the movable plate.

[0013] Furthermore, the outer surfaces of the heat exchange plate and the movable plate are respectively provided with through holes, and the number of the through holes is four groups. The outer surface of the front end of the movable plate is respectively fixedly connected with a hot discharge pipe, a cold discharge pipe, a hot feed pipe, and a cold feed pipe. The hot discharge pipe is located at the lower side of the cold feed pipe, and the hot feed pipe is located on the right side of the cold feed pipe. The front ends of the hot discharge pipe, the cold discharge pipe, the hot feed pipe, and the cold feed pipe are all fixedly connected with flanges, and the outer surface of the flanges is provided with mounting holes.

[0014] Furthermore, a sealing ring 2 and a sealing ring 1 are symmetrically fixedly connected to the outer surface of the heat exchange plate, and a cavity is symmetrically opened on the outer surface of the heat exchange plate. The cavity, sealing ring 1, and sealing ring 2 correspond to the positions of the through holes and are diagonally distributed respectively. The cavity is respectively connected to the inside of the guide groove 1 and the guide groove 2, and a filter screen is fixedly connected to the inner surface of the cavity.

[0015] Furthermore, a turbulence component is provided on the inner side of the second guide groove, and the turbulence component includes a bracket fixedly connected to the inner surface of the second guide groove, and a top rod is slidably connected to the outer surface of the bracket, and a contact block 1 is fixedly connected to the lower end of the top rod, and the contact block 1 is rotationally contacted with the outer surface of the guide plate, and a top block is fixedly connected to the upper end of the top rod, and the top block is located on the lower side of the filter screen, and the outer surfaces of the top block and the contact block 1 are both arc-shaped.

[0016] Furthermore, the inner surface of the second guide groove is fixedly connected to a core shaft, the outer surface of the core shaft is rotatably connected to a flap, the core shaft and flaps are in several groups and distributed in a linear array, the traction strip is made of elastic material, and a notch is provided on the outer surface of the push rod.

[0017] Furthermore, a sealing assembly is provided on the outer side of the heat exchange plate, and the sealing assembly includes a sealing groove opened on the outer surface of the heat exchange plate, a sealing gasket is fixedly connected to the inner surface of the sealing groove, a sealing block is fixedly connected to the outer surface of the heat exchange plate on the opposite side of the sealing groove, a movable groove is embedded on the inner side of the sealing block, a slide plate is slidably connected to the inner surface of the movable groove, a bladder body 2 is fixedly connected to the outer surface of the slide plate, and a spring is fixedly connected to the side of the outer surface of the slide plate away from the bladder body 2.

[0018] Furthermore, one end of the capsule 2 away from the slide plate is fixedly connected to the inner surface of the movable groove, and one end of the slide plate away from the capsule 2 is fixedly connected to a sliding rod, and the sliding rod penetrates to the outside of the sealing block and is slidably connected to the sealing block. A receiving groove is provided on the outer surface of the sealing block, and the inner surface of the receiving groove is fixedly connected to the capsule 1, and the outer surface of the capsule 1 is fixedly connected to an extrusion plate. The number of capsules 1 is two groups and they are symmetrically distributed, and the outer surface of the capsule 1 is fixedly connected to a catheter, and the end of the catheter away from the capsule 1 is connected to the inside of the capsule 2.

[0019] Compared with the prior art, the advantages of the present invention are:

[0020] (1) This solution provides a flow splitter assembly, and by pushing a rod to slide inside the guide groove 1, the fluid inside the guide groove 1 can be disturbed, so that the fluid flows irregularly inside the guide groove 1 and forms turbulence. In the turbulent state, the momentum exchange between the fluids is more frequent, which helps to break the thermal boundary layer in the fluid, thereby improving the heat exchange efficiency. At the same time, the turbulence enables the fluid to fully contact the inner wall of the guide groove 1, thereby further improving the heat exchange effect of the heat exchange plate;

[0021] (2) In this solution, a turbulent flow component is provided, and the push rod drives the flap to swing synchronously during the movement, so that the fluid inside the second guide groove forms turbulence through the flap. At the same time, the movement of the flap can adjust the shape and size of the turbulence, thereby forming a variable turbulence inside the second guide groove, thereby further improving the heat exchange efficiency of the fluid;

[0022] (3) This solution sets up a sealing assembly, and seals the two groups of heat exchange plates through a sealing block, a sealing groove and a sealing gasket. At the same time, the sealing gasket fits more closely with the inner wall of the sealing groove and the outer surface of the sealing block, which can effectively improve the sealing effect between the heat exchange plates and reduce the probability of cold and hot fluids leaking from the gaps between adjacent heat exchange plates, thereby further improving the operating stability of the heat exchanger. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 The overall structure of the present invention is shown in FIG. Figure 1 ;

[0024] Figure 2 The overall structure of the present invention is shown in FIG. Figure 2 ;

[0025] Figure 3 It is a top view of the overall structure of the present invention;

[0026] Figure 4 For the present invention Figure 3 Middle AA section view;

[0027] Figure 5 For the present invention Figure 4 Middle BB section view;

[0028] Figure 6 For the present invention Figure 5 The enlarged schematic diagram at C in the middle;

[0029] Figure 7 For the present invention Figure 4 The enlarged schematic diagram at D in the middle;

[0030] Figure 8 For the present invention Figure 4 Enlarged schematic diagram at point E in the middle.

[0031] Description of the numbers in the figure:

[0032] 11. Leg; 12. Movable plate; 13. Fixed plate; 14. Hot discharge pipe; 15. Flange; 16. Mounting hole; 17. Cold feed pipe; 18. Hot feed pipe; 19. Cold discharge pipe; 20. Movable plate; 21. Lock nut; 22. Screw; 23. Ear seat; 24. Guide rod; 25. Sliding seat; 26. Through hole; 27. Sealing ring 1; 28. Heat exchange plate; 29. ​​Sealing groove; 30. Sealing pad; 32. Sealing ring 2; 33. Cavity; 34. Guide groove 1; 35. Guide Flow channel two; 37, filter screen; 38, bracket; 40, top block; 41, top rod; 42, contact block one; 43, movable rod; 44, support rod; 45, guide plate; 46, contact block two; 47, push rod; 48, support rod; 49, notch; 50, traction bar; 51, core shaft; 52, flap; 53, sealing block; 54, storage groove; 55, capsule one; 56, extrusion plate; 57, catheter; 58, movable groove; 59, capsule two; 60, slide plate; 61, slide rod; 62, spring. DETAILED DESCRIPTION

[0033] 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, and all other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making creative work are within the scope of protection of the present invention.

[0034] See also Figures 1 to 8 A double-wall plate heat exchanger, comprising a heat exchange plate 28, wherein a first guide groove 34 and a second guide groove 35 are symmetrically provided on the outer surface of the heat exchange plate 28, and a flow diversion component is arranged inside the second guide groove 35, wherein the flow diversion component comprises a movable part and a bypass part;

[0035] The movable part includes a movable rod 43 rotatably connected to the inner surface of the guide groove 35, a support rod 44 is fixedly connected to the outer surface of the movable rod 43, and a guide plate 45 is fixedly connected to one end of the support rod 44 away from the movable rod 43, and the outer surface of the guide plate 45 is in an arc shape;

[0036] A support rod 48 is fixedly connected to the inner surface of the guide groove 1 34, and a push rod 47 is slidably connected to the upper side of the outer surface of the support rod 48. A contact block 2 46 is fixedly connected to the outer surface of the push rod 47 close to the guide plate 45. The contact block 2 46 is in sliding contact with the outer surface of the guide plate 45. A traction bar 50 is fixedly connected to the end of the push rod 47 away from the contact block 2 46, and the upper end of the traction bar 50 is fixedly connected to the upper end of the inner surface of the guide groove 1 34.

[0037] The outer surface of the contact block 2 46 is in an arc shape, the number of the support rods 44 and the guide plates 45 is in several groups and distributed in a ring array, the guide groove 2 35 is vertical, the number of the guide groove 1 34 is in several groups and distributed in a parallel array, the left and right ends of the guide groove 1 34 are connected to the inside of the guide groove 2 35, and the number of the heat exchange plates 28 is in several groups and distributed in a linear array.

[0038] By adopting the above technical solution, the heat exchange plate 28 is the main structure of the heat exchanger. The front and rear sides of the outer surface of the heat exchange plate 28 are provided with a guide groove 1 34 and a guide groove 2 35. At the same time, a plurality of groups of heat exchange plates 28 are kept in close contact. The guide groove 1 34 and the guide groove 2 35 on the surface of two adjacent groups of heat exchange plates 28 will form a rectangular channel. The guide groove 1 34 and the guide groove 2 35 on both sides of the heat exchange plate 28 are used for the flow of cold fluid and hot fluid respectively. The heat exchange is realized by the flow of cold fluid and hot fluid on both sides of the heat exchange plate 28. The cold fluid and the hot fluid are respectively injected into the guide groove 1 34 and the guide groove 2 35 from the upper side. The guide groove 1 34 The number of guide grooves 34 is several groups and they are distributed in parallel arrays. In order to make the fluid enter the inside of each group of guide grooves 34 evenly to improve the heat exchange effect of the heat exchange plate 28, a diversion component is set. When working, the fluid flows downward along the inside of the guide groove 35. The fluid will impact the guide plate 45 under the action of gravity. The guide groove 35 rotates and supports the movable rod 43. The movable rod 43 supports the guide plate 45 through the support rod 44. The guide plate 45 is in an arc shape and will divert the fluid. Since the guide plate 45 is close to the guide groove 34, a small part of the fluid will be diverted to the inside of the guide groove 34 through the guide plate 45, while most of the fluid will flow into the guide groove 34. The fluid continues to flow downward along the guide groove 2 35, and the fluid can be diverted to the inside of each group of guide grooves 1 34 through a plurality of groups of linearly distributed movable rods 43 and guide plates 45. The contact area between the fluid and the heat exchange plate 28 can be increased through the guide groove 1 34, thereby effectively improving the heat exchange efficiency of the heat exchange plate 28. When the fluid impacts the guide plate 45, the guide plate 45 drives the movable rod 43 to rotate through the support rod 44. During the rotation process, the guide plate 45 will rotate and contact with the outer surface of the contact block 2 46. The guide plate 45 pushes the push rod 47 through the contact block 2 46, and the support rod 48 slides and supports the push rod 47. During the movement of the movable rod 47, the traction bar 50 will be stretched. As the guide plate 45 continues to rotate, the push rod 47 slides in the opposite direction under the elastic force of the traction bar 50. By pushing the push rod 47 inside the guide groove 34, the fluid inside the guide groove 34 can be disturbed, so that the fluid flows irregularly inside the guide groove 34 and forms turbulence. In the turbulent state, the momentum exchange between the fluids is more frequent, which helps to break the thermal boundary layer in the fluid, thereby improving the heat exchange efficiency, so that the fluid can fully contact the inner wall of the guide groove 34, thereby further improving the heat exchange effect of the heat exchange plate 28.

[0039] like Figure 1 and Figure 2 As shown, a clamping assembly is provided on the outside of the heat exchange plate 28, and the clamping assembly includes a sliding seat 25 fixedly connected to the outer surface of the lower end of the heat exchange plate 28, a guide rod 24 is slidably connected to the inner side of the sliding seat 25, a movable plate 12 is slidably connected to the outer surface of the guide rod 24, a fixed plate 13 is fixedly connected to the rear end of the guide rod 24, and the lower end outer surfaces of the movable plate 12 and the fixed plate 13 are fixedly connected to the support legs 11.

[0040] The front end outer surface of the fixed plate 13 is rotatably connected to a screw rod 22, the outer surface of the heat exchange plate 28 is symmetrically fixedly connected to an ear seat 23, the ear seat 23 is located on the outside of the screw rod 22 and is in sliding contact with the screw rod 22, the screw 22 penetrates to the front side of the movable plate 12 and is in sliding contact with the movable plate 12, the outer surface of the screw 22 is slidably connected to the movable plate 20, the outer surface of the screw 22 is helically connected to a locking nut 21, and the outer surface of the locking nut 21 is in rotatable contact with the outer surface of the movable plate 20.

[0041] By adopting the above technical solution, before the heat exchanger works, the fixed plate 13 is fixedly supported by the legs 11, and the guide rods 24 slide and guide the heat exchange plate 28 through the sliding seat 25, so that the heat exchange plate 28 moves more smoothly, and then the operator screws the locking nut 21, and the locking nut 21 is connected with the screw rod 22 through the spiral transmission, and the movable plate 20 is synchronously driven to move toward the side of the fixed plate 13 during the rotation process, and the movable plate 20 drives the movable plate 12 to move synchronously, so that the heat exchange plate 28 is pushed by the movable plate 12. The heat exchange plates 28 are moved, and then several groups of heat exchange plates 28 are closely fitted together with the movable plate 12 and the fixed plate 13, so as to realize the rapid clamping of the heat exchange plates 28. The screw 22 has a certain limiting effect on the heat exchange plates 28 through the ear seat 23, so as to further improve the clamping accuracy of the heat exchange plates 28. The rapid clamping of the heat exchange plates 28 can be realized by setting the clamping assembly, so as to facilitate the cleaning of the guide groove 1 34 and the guide groove 2 35 on the surface of the heat exchange plate 28, so as to reduce the difficulty of cleaning the inside of the heat exchange plate 28.

[0042] like Figure 2 , Figure 3 and Figure 5 As shown, the outer surfaces of the heat exchange plate 28 and the movable plate 12 are respectively provided with through holes 26, and the number of the through holes 26 is four groups. The outer surface of the front end of the movable plate 12 is respectively fixedly connected with the hot discharge pipe 14, the cold discharge pipe 19, the hot feed pipe 18, and the cold feed pipe 17. The hot discharge pipe 14 is located at the lower side of the cold feed pipe 17, and the hot feed pipe 18 is located on the right side of the cold feed pipe 17. The front ends of the hot discharge pipe 14, the cold discharge pipe 19, the hot feed pipe 18, and the cold feed pipe 17 are all fixedly connected with flanges 15, and the outer surface of the flange 15 is provided with mounting holes 16.

[0043] The outer surface of the heat exchange plate 28 is fixedly connected with a sealing ring 22 and a sealing ring 1 27. The outer surface of the heat exchange plate 28 is symmetrically provided with a cavity 33. The cavity 33, the sealing ring 1 27, the sealing ring 2 32 correspond to the positions of the through hole 26 and are respectively distributed diagonally. The cavity 33 is respectively connected with the inside of the guide groove 1 34 and the guide groove 2 35. The inner surface of the cavity 33 is fixedly connected with a filter screen 37.

[0044] By adopting the above technical scheme, the through holes 26 opened on the surfaces of the heat exchange plate 28 and the movable plate 12 are used for the flow of fluid, and the cold and hot fluids are respectively injected into the through hole 26 through the cold feed pipe 17 and the hot feed pipe 18, and then respectively enter the guide groove 1 34 and the guide groove 2 35 through the cavity 33 on the lower side of the through hole 26, and then the cold fluid and the hot fluid are respectively collected in the lower through hole 26, and then discharged to the outside of the heat exchanger through the cold discharge pipe 19 and the hot discharge pipe 14, the sealing ring 1 27 and the sealing ring 2 32 can seal the inside of the through hole 26, so as to effectively reduce the probability of leakage during the flow of cold and hot fluids, the hot discharge pipe 14, the cold discharge pipe 19, the hot feed pipe 18, and the cold feed pipe 17 are connected to the external feed pipeline through the flange 15 and the mounting hole 16, so as to realize the stable transportation of cold and hot fluids.

[0045] like Figure 4 , Figure 7 and Figure 8 As shown, a turbulence component is provided on the inner side of the guide groove 2 35, and the turbulence component includes a bracket 38 fixedly connected to the inner surface of the guide groove 2 35, and a push rod 41 is slidably connected to the outer surface of the bracket 38, and a contact block 42 is fixedly connected to the lower end of the push rod 41, and the contact block 42 is in rotational contact with the outer surface of the guide plate 45, and a push block 40 is fixedly connected to the upper end of the push rod 41, and the push block 40 is located on the lower side of the filter screen 37, and the outer surfaces of the push block 40 and the contact block 42 are both arc-shaped.

[0046] The inner surface of the guide groove 35 is fixedly connected with a core shaft 51, and the outer surface of the core shaft 51 is rotatably connected with a flap 52. The core shaft 51 and the flap 52 are in several groups and distributed in a linear array. The traction bar 50 is made of elastic material, and the outer surface of the push rod 47 is provided with a notch 49.

[0047] By adopting the above technical solution, when the cold and hot fluids flow into the cavity 33 through the through hole 26, the filter 37 inside the cavity 33 can effectively filter the foreign matter in the cold and hot fluids, thereby reducing the probability of the guide groove 1 34 and the guide groove 2 35 being blocked by foreign matter. The guide plate 45 will rotate and contact with the lower surface of the contact block 1 42 during the rotation process. The contact block 1 42 will move up and down under the push of the guide plate 45. The contact block 1 42 will drive the push rod 41 to move synchronously. The bracket 38 can support the push rod 41 for sliding, so that the push rod 41 moves more smoothly. The push rod 41 will drive the top block 40 to move synchronously during the upward movement. The top block 40 will collide with the lower end of the filter 37 to effectively vibrate the filter 37, thereby It can effectively reduce the adhesion of foreign matter on the surface of the filter 37, thereby ensuring the filtering effect of the filter 37 and reducing the probability of the filter 37 being blocked by foreign matter. The push rod 47 will push the flap 52 during the reciprocating motion, so that the flap 52 can rotate with the core shaft 51 as the fulcrum. The flap 52 causes the fluid inside the guide groove 35 to form turbulence. At the same time, the movement of the flap 52 can adjust the shape and size of the turbulence, thereby forming a changing turbulence inside the guide groove 35, thereby further improving the heat exchange efficiency of the fluid. The notch 49 on the surface of the push rod 47 can reduce the dead weight of the push rod 47. At the same time, the notch 49 can break the smooth surface of the push rod 47, thereby causing the fluid to produce turbulence of different shapes and sizes.

[0048] like Figure 5 and Figure 6 As shown, a sealing assembly is provided on the outside of the heat exchange plate 28, and the sealing assembly includes a sealing groove 29 opened on the outer surface of the heat exchange plate 28, and a sealing gasket 30 is fixedly connected to the inner surface of the sealing groove 29, and a sealing block 53 is fixedly connected to the outer surface of the heat exchange plate 28 on the opposite side of the sealing groove 29, and a movable groove 58 is embedded on the inner side of the sealing block 53, and a slide plate 60 is slidably connected to the inner surface of the movable groove 58, and a capsule 2 59 is fixedly connected to the outer surface of the slide plate 60, and a spring 62 is fixedly connected to the outer surface of the slide plate 60 away from the capsule 2 59.

[0049] The end of the second capsule 59 away from the slide plate 60 is fixedly connected to the inner surface of the movable groove 58, and the end of the slide plate 60 away from the second capsule 59 is fixedly connected to a slide rod 61, and the slide rod 61 penetrates to the outside of the sealing block 53 and is slidably connected to the sealing block 53. The outer surface of the sealing block 53 is provided with a receiving groove 54, and the inner surface of the receiving groove 54 is fixedly connected to the first capsule 55, and the outer surface of the first capsule 55 is fixedly connected to the extrusion plate 56. The number of the first capsule 55 is two groups and they are symmetrically distributed. The outer surface of the first capsule 55 is fixedly connected to a catheter 57, and the end of the catheter 57 away from the first capsule 55 is connected to the inside of the second capsule 59.

[0050] By adopting the above technical solution, when the heat exchange plates 28 are installed, when the two groups of heat exchange plates 28 are close to each other, the sealing block 53 on the surface of the other group of heat exchange plates 28 will be engaged with the inside of the sealing groove 29, and at the same time, the sealing block 53 will stretch the sealing gasket 30 inside the sealing groove 29, so that the sealing gasket 30 can fit tightly between the sealing groove 29 and the sealing block 53. The two groups of heat exchange plates 28 are sealed by the sealing block 53, the sealing groove 29 and the sealing gasket 30. The sliding rod 61 will have a small contact with the inside of the sealing groove 29. As the sealing block 53 gradually moves into the inside of the sealing groove 29, the sliding rod 61 will drive the sliding plate 60 to gradually move into the inside of the movable groove 58. The sliding plate 60 will move the capsule 2 59 during the movement. The gas in the bladder body 2 59 enters the bladder body 1 55 through the conduit 57, and then the bladder body 1 55 in the receiving groove 54 is inflated to drive the extrusion plate 56 on its surface to move to the outside of the receiving groove 54. The extrusion plate 56 pushes the sealing gasket 30, so that the sealing gasket 30 fits more closely with the inner wall of the sealing groove 29 and the outer surface of the sealing block 53, which can effectively improve the sealing effect between the heat exchange plates 28 and reduce the probability of leakage of cold and hot fluids from the gaps between adjacent heat exchange plates 28, thereby further improving the operating stability of the heat exchanger. When the sealing block 53 is out of contact with the sealing groove 29, the slide plate 60 moves in the opposite direction and resets under the elastic force of the spring 62.

[0051] Method of use: Before working, fit several groups of heat exchange plates 28 tightly together with the movable plate 12 and the fixed plate 13. The guide rod 24 guides the sliding of the heat exchange plates 28 through the sliding seat 25, so that the heat exchange plates 28 move more smoothly. When the two groups of heat exchange plates 28 are close to each other, the sealing block 53 on the surface of the other group of heat exchange plates 28 will be engaged with the inside of the sealing groove 29. The sealing block 53, the sealing groove 29 and the sealing gasket 30 are used to seal the two groups of heat exchange plates 28. The gas inside the bladder 2 59 enters the inside of the bladder 1 55 through the conduit 57, and then the bladder 1 55 inside the storage groove 54 is inflated to drive the extrusion plate 56 on its surface to move to the outside of the storage groove 54, so that the sealing gasket 30 is in contact with the inner wall of the sealing groove 29 and the sealing gasket 30. The outer surface of the block 53 fits more closely, and then when the cold and hot fluids flow into the cavity 33 through the through hole 26, the guide grooves 1 34 and 2 35 on the surfaces of the two adjacent groups of heat exchange plates 28 will form a rectangular channel, and the guide grooves 1 34 and 2 35 on both sides of the heat exchange plate 28 are respectively used for the flow of cold fluid and hot fluid, and the heat exchange is realized by the flow of cold fluid and hot fluid on both sides of the heat exchange plate 28. By sliding the push rod 47 inside the guide groove 1 34, the fluid inside the guide groove 1 34 can be disturbed, so that the fluid flows irregularly inside the guide groove 1 34, so that the fluid can fully contact the inner wall of the guide groove 1 34, thereby further improving the heat exchange effect of the heat exchange plate 28.

[0052] The above is only a preferred specific implementation of the present invention; however, the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical solution and its improved conception within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A double-wall plate heat exchanger, comprising a heat exchange plate (28), characterized in that: The outer surface of the heat exchange plate (28) is symmetrically provided with a first guide groove (34) and a second guide groove (35), and a flow diversion component is arranged inside the second guide groove (35), and the flow diversion component includes a movable part and a bypass part; The movable part comprises a movable rod (43) rotatably connected to the inner surface of the second guide groove (35); the outer surface of the movable rod (43) is fixedly connected to a support rod (44); one end of the support rod (44) away from the movable rod (43) is fixedly connected to a guide plate (45); and the outer surface of the guide plate (45) is in an arc shape; The inner surface of the guide groove one (34) is fixedly connected to a support rod (48), the upper side of the outer surface of the support rod (48) is slidably connected to a push rod (47), the outer surface of the push rod (47) is fixedly connected to a contact block two (46) on the side close to the guide plate (45), the contact block two (46) is in sliding contact with the outer surface of the guide plate (45), the end of the push rod (47) away from the contact block two (46) is fixedly connected to a traction bar (50), the upper end of the traction bar (50) is fixedly connected to the upper end of the inner surface of the guide groove one (34).

2. A double-wall plate heat exchanger according to claim 1, characterized in that: The outer surface of the contact block 2 (46) is in an arc shape, the support rods (44) and the guide plates (45) are in a plurality of groups and are distributed in a ring array, the guide groove 2 (35) is vertical, the guide groove 1 (34) is in a plurality of groups and are distributed in a parallel array, the left and right ends of the guide groove 1 (34) are connected to the inside of the guide groove 2 (35), and the heat exchange plates (28) are in a plurality of groups and are distributed in a linear array.

3. A double-wall plate heat exchanger according to claim 2, characterized in that: A clamping assembly is arranged on the outside of the heat exchange plate (28), and the clamping assembly comprises a sliding seat (25) fixedly connected to the outer surface of the lower end of the heat exchange plate (28); a guide rod (24) is slidably connected to the inner side of the sliding seat (25); a movable plate (12) is slidably connected to the outer surface of the guide rod (24); a fixed plate (13) is fixedly connected to the rear end of the guide rod (24); and legs (11) are fixedly connected to the outer surfaces of the lower ends of the movable plate (12) and the fixed plate (13).

4. A double-wall plate heat exchanger according to claim 3, characterized in that: The front end outer surface of the fixed plate (13) is rotatably connected to a screw rod (22), the outer surface of the heat exchange plate (28) is symmetrically fixedly connected to an ear seat (23), the ear seat (23) is located on the outer side of the screw rod (22) and is in sliding contact with the screw rod (22), the screw rod (22) passes through the front side of the movable plate (12) and is in sliding contact with the movable plate (12), the outer surface of the screw rod (22) is slidably connected to the movable plate (20), the outer surface of the screw rod (22) is helically connected to a locking nut (21), and the outer surface of the locking nut (21) is in rotatable contact with the outer surface of the movable plate (20).

5. A double-wall plate heat exchanger according to claim 4, characterized in that: The outer surfaces of the heat exchange plate (28) and the movable plate (12) are respectively provided with through holes (26), and the number of the through holes (26) is four groups. The outer surface of the front end of the movable plate (12) is respectively fixedly connected with a hot discharge pipe (14), a cold discharge pipe (19), a hot feed pipe (18), and a cold feed pipe (17). The hot discharge pipe (14) is located at the lower side of the cold feed pipe (17), and the hot feed pipe (18) is located at the right side of the cold feed pipe (17). The front ends of the hot discharge pipe (14), the cold discharge pipe (19), the hot feed pipe (18), and the cold feed pipe (17) are all fixedly connected with a flange (15), and the outer surface of the flange (15) is provided with a mounting hole (16).

6. A double-wall plate heat exchanger according to claim 5, characterized in that: The outer surface of the heat exchange plate (28) is symmetrically and fixedly connected with a sealing ring 2 (32) and a sealing ring 1 (27); the outer surface of the heat exchange plate (28) is symmetrically provided with a cavity (33); the cavity (33), the sealing ring 1 (27), the sealing ring 2 (32) and the through hole (26) are located correspondingly and are respectively distributed diagonally; the cavity (33) is respectively connected with the inside of the guide groove 1 (34) and the guide groove 2 (35); and the inner surface of the cavity (33) is fixedly connected with a filter screen (37).

7. A double-wall plate heat exchanger according to claim 6, characterized in that: A turbulent flow component is arranged inside the second guide groove (35), and the turbulent flow component comprises a bracket (38) fixedly connected to the inner surface of the second guide groove (35); a push rod (41) is slidably connected to the outer surface of the bracket (38); a contact block (42) is fixedly connected to the lower end of the push rod (41); the contact block (42) is in rotational contact with the outer surface of the guide plate (45); a push block (40) is fixedly connected to the upper end of the push rod (41); the push block (40) is located at the lower side of the filter screen (37); and the outer surfaces of the push block (40) and the contact block (42) are both arc-shaped.

8. A double-wall plate heat exchanger according to claim 7, characterized in that: The inner surface of the second guide groove (35) is fixedly connected to a core shaft (51), and the outer surface of the core shaft (51) is rotatably connected to a flap (52). The core shafts (51) and flaps (52) are provided in a plurality of groups and are distributed in a linear array. The traction bar (50) is made of elastic material, and a notch (49) is provided on the outer surface of the push rod (47).

9. A double-wall plate heat exchanger according to claim 8, characterized in that: A sealing assembly is provided on the outside of the heat exchange plate (28), and the sealing assembly includes a sealing groove (29) provided on the outer surface of the heat exchange plate (28), a sealing gasket (30) is fixedly connected to the inner surface of the sealing groove (29), a sealing block (53) is fixedly connected to the outer surface of the heat exchange plate (28) on the side opposite to the sealing groove (29), a movable groove (58) is embedded in the inner side of the sealing block (53), a slide plate (60) is slidably connected to the inner surface of the movable groove (58), a bladder body 2 (59) is fixedly connected to the outer surface of the slide plate (60), and a spring (62) is fixedly connected to the outer surface of the slide plate (60) away from the bladder body 2 (59).

10. A double-wall plate heat exchanger according to claim 9, characterized in that: The end of the second capsule (59) away from the slide plate (60) is fixedly connected to the inner surface of the movable groove (58); the end of the slide plate (60) away from the second capsule (59) is fixedly connected to a slide rod (61); the slide rod (61) penetrates to the outside of the sealing block (53) and is slidably connected to the sealing block (53); the outer surface of the sealing block (53) is provided with a receiving groove (54); the inner surface of the receiving groove (54) is fixedly connected to the first capsule (55); the outer surface of the first capsule (55) is fixedly connected to an extrusion plate (56); the number of the first capsule (55) is two groups and they are symmetrically distributed; the outer surface of the first capsule (55) is fixedly connected to a catheter (57); the end of the catheter (57) away from the first capsule (55) is connected to the inside of the second capsule (59).

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