A high-efficiency plate heat exchanger for industrial cooling water

Abstract

A high-efficiency plate heat exchanger for industrial cooling water, relating to the field of plate heat exchanger technology, includes a base and two fixed plates. Four guide plates are fixed between the two fixed plates. Hot-side plates and cold-side plates are alternately arranged between the two fixed plates. Both the hot-side and cold-side plates are connected to the guide plates and can slide along the length and width directions of the guide plates, respectively. The ends of the hot-side plates have a first hot flow channel and a second hot flow channel, and the ends of the cold-side plates have a first cold flow channel and a second cold flow channel. The upper and lower ends of both the hot-side and cold-side plates are perforated with alternately arranged hot fluid holes and cold fluid holes. The first and second hot flow channels communicate with the hot fluid holes, and the first and second cold flow channels communicate with the cold fluid holes. The depths of the first hot flow channel and the first cold flow channel are smaller than the depths of the second hot flow channel and the second cold flow channel, respectively. This invention solves the problem of cumbersome plate flow channel adjustment procedures in existing plate heat exchangers.

Description

Technical Field

[0001] This invention relates to the field of plate heat exchanger technology, specifically to a high-efficiency plate heat exchanger device for industrial cooling water. Background Technology

[0002] The main components of a plate heat exchanger include heat transfer plates, gaskets, fixed clamping plates, movable clamping plates, upper / lower guide rods, etc. The heat transfer plates are usually made of metal materials with good thermal conductivity and serve as the core heat transfer interface between the hot and cold media.

[0003] In industrial production processes, these metal plates are used to rapidly transfer heat generated by industrial equipment (such as reactors, compressors, or high-temperature process units) to cooling water (or conversely, to transfer heat from external heat sources to the medium to be heated). The hot and cold media flow in strict countercurrents in independent channels on both sides of the plates—the hot media flows from top to bottom on one side of the plates, while the cold media flows in the opposite direction on the other side of the adjacent plates. This achieves efficient heat transfer and ultimately enables precise temperature control of the equipment. At the same time, because the hot and cold media are completely isolated by the plates and sealing gaskets and operate independently in closed channels, the cooling water system is effectively protected from corrosive components, solid particles, or oil contamination in the industrial media, avoiding water quality deterioration and scaling risks.

[0004] Existing plate heat exchangers have gradually revealed their shortcomings during use, mainly in the following aspects: In the practical application of plate heat exchangers, the viscosity of the hot and cold media often changes with process conditions (such as temperature, reaction progress, or raw material batches). The change in fluid viscosity directly leads to a change in the required thickness of the plate flow channels: high-viscosity fluids require thick flow channels to reduce flow resistance and avoid blockage, while low-viscosity fluids are suitable for thin flow channels to maintain higher turbulence intensity. However, in the operation of existing plate heat exchangers, when the viscosity of any fluid changes significantly, the equipment needs to be shut down and disassembled to replace the thick flow channel plates used for that fluid with thin flow channel plates (or vice versa). The entire process involves a large amount of manual disassembly, assembly, and re-tightening operations, making the flow channel adjustment process very cumbersome.

[0005] In conclusion, the existing technology obviously has inconveniences and defects in practical use, so it is necessary to improve it. Summary of the Invention

[0006] In view of the deficiencies in the prior art, the technical problem to be solved by the present invention is to provide a high-efficiency plate heat exchanger for industrial cooling water. During the use of the plate heat exchanger, when the viscosity of any fluid changes significantly, the thickness of the flow channel through which the fluid flows can be quickly adjusted without disassembling the plates, which greatly simplifies the flow channel adjustment process and shortens the adjustment time and production interruption cycle.

[0007] To address the above problems, the present invention provides the following technical solution: A high-efficiency plate heat exchanger for industrial cooling water includes a base and two fixed plates. Four guide plates are fixed between the two fixed plates. Hot-side plates and cold-side plates are alternately arranged between the two fixed plates. Both the hot-side plates and cold-side plates are connected to the guide plates and can slide along the length and width directions of the guide plates, respectively. The ends of the hot-side plates are provided with a first hot flow channel and a second hot flow channel. The ends of the cold-side plates are provided with a first cold flow channel and a second cold flow channel. The upper and lower ends of the hot-side plates and cold-side plates are provided with alternately arranged hot fluid holes and cold fluid holes. The first hot flow channel and the second hot flow channel communicate with the hot fluid holes. The first cold flow channel and the second cold flow channel communicate with the cold fluid holes. The depths of the first hot flow channel and the first cold flow channel are smaller than the depths of the second hot flow channel and the second cold flow channel, respectively. A clamping assembly and two separation assemblies are provided between the two fixed plates.

[0008] As an optimized solution, the guide plate is fixedly connected to the fixing plate, wherein two of the guide plates are located on the upper side and the other two guide plates are located on the lower side, and the two separation components are symmetrically arranged about the horizontal plane, wherein one separation component is located between the two upper guide plates and the other separation component is located between the two lower guide plates; The separation component includes a vertically lifting plate, and a plurality of insert plates are slidably provided at the bottom of the lifting plate, the bottom surface of the insert plates being an inclined structure; The hot side plate and the cold side plate are each provided with two slots at the top and bottom, and the slots are set in accordance with the shape of the bottom of the insert plate.

[0009] As an optimized solution, several sliding blocks are slidably provided at the bottom of the two upper guide plates and the top of the two lower guide plates, and the top and bottom of the hot side plate and the cold side plate are slidably connected to the sliding blocks.

[0010] As an optimized solution, the clamping assembly includes a clamping plate, the top and bottom of which are fixedly connected to a sliding block. A connecting plate is provided at the end of the clamping plate, and the connecting plate is fixedly connected to the clamping plate through a plurality of connecting posts. One of the fixed plates has a threaded screw threaded through it at its end. One end of the screw is rotatably connected to the connecting plate, and the other end is fixedly connected to a handwheel.

[0011] As an optimized solution, two adjusting plates are slidably provided on the top of the base, and several movable plates are slidably provided at the ends of the adjusting plates. One of the movable plates on the adjusting plate is fixedly connected to the hot side plate, and the other movable plate on the adjusting plate is fixedly connected to the cold side plate.

[0012] As an optimized solution, a number of drive telescopic cylinders are fixedly provided on the top of the base, and the telescopic ends of the drive telescopic cylinders are fixedly connected to the adjustment plate.

[0013] As an optimized solution, sealing gaskets are laid at the ends of the hot side plate, cold side plate, and clamping plate.

[0014] As an optimized solution, one of the fixed plates has two hot fluid through holes and two cold fluid through holes through its end, and four liquid pipes are fixedly provided at the end of the fixed plate, the liquid pipes being connected to the hot fluid through holes or the cold fluid through holes.

[0015] As an optimized solution, several mounting plates are provided between two horizontally adjacent guide plates. The mounting plates are fixedly connected to the guide plates, and a lifting telescopic cylinder is fixedly provided on the mounting plates. The telescopic end of the lifting telescopic cylinder passes through the mounting plate and is fixedly connected to the lifting plate.

[0016] As an optimized solution, the fixing plate is fixedly connected to the base.

[0017] Compared with the prior art, the beneficial effects of the present invention are: 1. When both the hot and cold media are low-viscosity fluids, the hot side plate and the cold side plate should be selected as the first hot runner and the first cold runner with the smallest depths, respectively. The positions of the hot side plate and the cold side plate are as follows: Figure 8 As shown, the hot fluid enters through the upper hot fluid through-hole, flows downward through the first hot flow channel of the hot side plate, and exits through the lower hot fluid through-hole. The cold fluid enters through the lower cold fluid through-hole, flows upward through the first cold flow channel of the cold side plate, and exits through the upper cold fluid through-hole. The hot / cold media exchange heat through the plates. When the viscosity of the hot / cold media changes and the plate flow channels are adjusted, rotating the screw releases the pressure plate from the plates. The lifting and telescopic cylinder drives the upper and lower lifting plates to move towards each other. The inclined structure of the insert plate presses against the hot and cold side plates, causing them to slide. When the inclined structure at the bottom of the insert plate completely disengages from the slot, the hot and cold side plates alternate with the insert plate, at which point the hot and cold side plates are separated (the process of the hot / cold side plates changing is as follows). Figure 10As shown), the adjusting plate slides to adjust the position of the hot and cold side plates. The adjustment rules for the hot and cold side plates are as follows: when both the hot and cold media are high-viscosity fluids, the hot and cold side plates use the second hot flow channel and the second cold flow channel respectively; when the hot and cold media are high and low-viscosity fluids respectively, the hot and cold side plates use the second hot flow channel and the first cold flow channel respectively; when the hot and cold media are low and high-viscosity fluids respectively, the hot and cold side plates use the first hot flow channel and the second cold flow channel respectively. After the flow channel adjustment is completed, the lifting plate drives the insert plate to reset, and the pressing plate presses the hot and cold side plates together. The insert plate enters the slot. During the use of this plate heat exchanger, when the viscosity of any fluid changes significantly, the thickness of the flow channel through which the fluid flows can be quickly adjusted without disassembling the plates. This greatly simplifies the flow channel adjustment process and shortens the adjustment time and production interruption cycle. 2. When adjusting the position of the hot side plate and the cold side plate, the hot side plate and the cold side plate can be quickly separated by inserting the insert plate. This allows the adjusting plate to effectively prevent the sealing gasket from being damaged due to the small gap between the plates during the adjustment process, thereby protecting the integrity and service life of the sealing gasket. Attached Figure Description

[0018] To more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the accompanying drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. In all the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, the elements or parts are not necessarily drawn to scale.

[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 clamping assembly of the present invention; Figure 3 This is a schematic diagram of the structure of the hot / cold side plate and the clamping plate of the present invention; Figure 4 This is a cross-sectional view of the hot / cold side plate of the present invention; Figure 5 This is a schematic diagram of the structure between the four guide plates of the present invention; Figure 6 This is a schematic diagram of the structure of the separation component of the present invention; Figure 7 This is a schematic diagram of the slot structure of the present invention; Figure 8 This is a schematic diagram of the driving method for the hot / cold side plates of the present invention; Figure 9 This is a schematic diagram of the sliding block of the present invention; Figure 10This is a diagram showing the changes before and after the separation of the hot / cold side plates in this invention.

[0020] In the diagram: 1-Base; 2-Adjusting plate; 3-Moving plate; 4-Fixed plate; 5-Guide plate; 6-Separation assembly; 7-Cold side plate; 8-Hot side plate; 9-Sliding block; 10-Pressure plate; 11-Connecting column; 12-Connecting plate; 13-Pressure assembly; 14-Handwheel; 15-Screw; 16-First hot runner; 17-Hot fluid hole; 18-Cold fluid hole; 19-Second hot runner; 20-Sealing gasket; 21-First cold runner; 22-Second cold runner; 23-Lifting plate; 24-Mounting plate; 25-Lifting telescopic cylinder; 26-Liquid pipe; 27-Hot fluid through hole; 28-Cold fluid through hole; 29-Insertion plate; 30-Slot; 31-Drive telescopic cylinder. Detailed Implementation

[0021] The embodiments of the technical solution of the present invention will now be described in detail with reference to the accompanying drawings. These embodiments are merely illustrative of the technical solution of the present invention and are therefore intended to limit the scope of protection of the present invention.

[0022] like Figures 1 to 10 As shown, a high-efficiency plate heat exchanger for industrial cooling water includes a base 1 and two fixed plates 4. Four guide plates 5 are fixedly arranged between the two fixed plates 4. Hot-side plates 8 and cold-side plates 7 are alternately arranged between the two fixed plates 4. Both the hot-side plates 8 and cold-side plates 7 are connected to the guide plates 5 and can slide along the length and width directions of the guide plates 5, respectively. The ends of the hot-side plates 8 are provided with a first hot flow channel 16 and a second hot flow channel 19, and the ends of the cold-side plates 7 are provided with a first cold flow channel 21 and a second cold flow channel 22. The upper and lower ends of the hot side plate 8 and the cold side plate 7 are provided with alternating hot fluid holes 17 and cold fluid holes 18. The first hot flow channel 16 and the second hot flow channel 19 are connected to the hot fluid holes 17, and the first cold flow channel 21 and the second cold flow channel 22 are connected to the cold fluid holes 18. The depths of the first hot flow channel 16 and the first cold flow channel 21 are smaller than the depths of the second hot flow channel 19 and the second cold flow channel 22, respectively. A clamping assembly 13 and two separating assemblies 6 are provided between the two fixed plates 4.

[0023] The guide plate 5 is fixedly connected to the fixed plate 4, with two guide plates 5 located on the upper side and the other two guide plates 5 located on the lower side. The two separation components 6 are symmetrically arranged about the horizontal plane, with one separation component 6 located between the two upper guide plates 5 and the other separation component 6 located between the two lower guide plates 5. The separation component 6 includes a vertically lifting plate 23, and a plurality of insert plates 29 are slidably provided at the bottom of the lifting plate 23. The bottom surface of the insert plates 29 is a sloping structure. The hot side plate 8 and the cold side plate 7 are provided with two slots 30 at the top and bottom, and the slots 30 are set in accordance with the bottom of the insert plate 29.

[0024] Several sliding blocks 9 are slidably provided at the bottom of the two upper guide plates 5 and the top of the two lower guide plates 5. The top and bottom of the hot side plate 8 and the cold side plate 7 are slidably connected to the sliding blocks 9.

[0025] The clamping assembly 13 includes a clamping plate 10, the top and bottom of which are fixedly connected to the sliding block 9. The end of the clamping plate 10 is provided with a connecting plate 12, which is fixedly connected to the clamping plate 10 through a number of connecting posts 11. One of the fixed plates 4 has a threaded screw 15 threaded through it at its end. One end of the screw 15 is rotatably connected to the connecting plate 12, and the other end is fixedly connected to a handwheel 14.

[0026] Two adjusting plates 2 are slidably provided on the top of the base 1, and several movable plates 3 are slidably provided at the ends of the adjusting plates 2. The movable plate 3 on one of the adjusting plates 2 is fixedly connected to the hot side plate 8, and the movable plate 3 on the other adjusting plate 2 is fixedly connected to the cold side plate 7.

[0027] Several drive telescopic cylinders 31 are fixedly installed on the top of the base 1, and the telescopic ends of the drive telescopic cylinders 31 are fixedly connected to the adjustment plate 2.

[0028] Sealing gaskets 20 are laid at the ends of the hot side plate 8, the cold side plate 7, and the clamping plate 10.

[0029] One of the fixing plates 4 has two hot fluid through holes 27 and two cold fluid through holes 28 through its end. Four liquid pipes 26 are fixedly provided at the end of the fixing plate 4, and the liquid pipes 26 are connected to the hot fluid through holes 27 or the cold fluid through holes 28.

[0030] Several mounting plates 24 are provided between two horizontally adjacent guide plates 5. The mounting plates 24 are fixedly connected to the guide plates 5. A lifting telescopic cylinder 25 is fixedly provided on the mounting plate 24. The telescopic end of the lifting telescopic cylinder 25 passes through the mounting plate 24 and is fixedly connected to the lifting plate 23.

[0031] The fixing plate 4 is fixedly connected to the base 1.

[0032] The working principle of this device is as follows: When both the hot and cold media are low-viscosity fluids, the hot side plate 8 and the cold side plate 7 are respectively selected as the first hot runner 16 and the first cold runner 21 with small depths. The positions of the hot side plate 8 and the cold side plate 7 are as follows: Figure 8As shown, the hot fluid enters through the upper hot fluid through-hole 27, flows downward through the first hot flow channel 16 of the hot side plate 8, and exits through the lower hot fluid through-hole 27. The cold fluid enters through the lower cold fluid through-hole 28, flows upward through the first cold flow channel 21 of the cold side plate 7, and exits through the upper cold fluid through-hole 28. The hot / cold media exchange heat through the plates. When the viscosity of the hot / cold media changes and the plate flow channels are adjusted, the screw 15 is rotated to release the pressure plate 10 from the plates. The lifting telescopic cylinder 25 drives the upper and lower lifting plates 23 to move towards each other. The inclined structure of the insert plate 29 presses the hot side plate 8 and the cold side plate 7, causing the hot side plate 8 and the cold side plate 7 to slide. When the inclined structure at the bottom of the insert plate 29 is completely disengaged from the slot 30, the hot side plate 8 and the cold side plate 7 are arranged alternately with the insert plate 29. At this time, the hot side plate 8 and the cold side plate 7 are separated (the process of hot / cold side plate change is as follows). Figure 10 As shown), the adjusting plate 2 slides to adjust the positions of the hot side plate 8 and the cold side plate 7. The adjustment rules for the hot side plate 8 and the cold side plate 7 are as follows: When both the hot and cold media are high-viscosity fluids, the hot side plate 8 and the cold side plate 7 use the second hot runner 19 and the second cold runner 22, respectively; when the hot and cold media are high and low-viscosity fluids, the hot side plate 8 and the cold side plate 7 use the second hot runner 19 and the first cold runner 21, respectively; when the hot and cold media are low and high-viscosity fluids, the hot side plate 8 and the cold side plate 7 use the second hot runner 19 and the first cold runner 21, respectively. The cold side plate 7 uses the first hot runner 16 and the second cold runner 22 respectively. After the runner is adjusted, the lifting plate 23 drives the insert plate 29 to reset. The pressing plate 10 presses the hot side plate 8 and the cold side plate 7 together. The insert plate 29 enters the slot 30. During the use of this plate heat exchanger, when the viscosity of any fluid changes significantly, the thickness of the runner through which the fluid flows can be quickly adjusted without disassembling the plates. This greatly simplifies the runner adjustment process and shortens the adjustment time and production interruption cycle. When adjusting the position of the hot side plate 8 and the cold side plate 7, the hot side plate 8 and the cold side plate 7 can be quickly separated by inserting the insert plate 29. This allows the adjusting plate 2 to effectively prevent the sealing gasket 20 from being damaged due to the small gap between the plates during the adjustment process, thereby protecting the integrity and service life of the sealing gasket 20.

[0033] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention, and they should all be covered within the scope of the claims and specification of the present invention.

Claims

1. A high efficiency plate heat exchanger for industrial cooling water, characterized in that: The utility model relates to a heat exchange device, including base (1) and two fixed plate (4), two fixed plate (4) between fixedly be equipped with four guide plate (5), two fixed plate (4) between alternately be equipped with hot side sheet (8) and cold side sheet (7), hot side sheet (8) and cold side sheet (7) all with guide plate (5) are connected with and can respectively along guide plate (5) length direction and width direction slide, hot side sheet (8) end part is equipped with first hot runner (16) and second hot runner (19), cold side sheet (7) end part is equipped with first cold runner (21) and second cold runner (22), the upper end and the lower end of hot side sheet (8) and cold side sheet (7) are all equipped with the alternately arranged hot fluid hole (17) and cold fluid hole (18) through, first hot runner (16) and second hot runner (19) are communicated with hot fluid hole (17), first cold runner (21) and second cold runner (22) are communicated with cold fluid hole (18), the depth of first hot runner (16) and first cold runner (21) is less than the depth of second hot runner (19) and second cold runner (22) respectively, two fixed plate (4) between be equipped with compacting assembly (13) and two separation assembly (6).

2. A high efficiency plate heat exchanger for industrial cooling water as claimed in claim 1, wherein: The guide plate (5) is fixedly connected with the fixed plate (4), wherein two of the guide plates (5) are located on the upper side, and the other two of the guide plates (5) are located on the lower side, and the two separation assemblies (6) are symmetrically arranged about a horizontal plane, wherein one of the separation assemblies (6) is located between the two guide plates (5) on the upper side, and the other of the separation assemblies (6) is located between the two guide plates (5) on the lower side; The separation assembly (6) comprises a lifting plate (23) arranged in a vertical lifting manner, and the bottom of the lifting plate (23) is slidably provided with a plurality of plug plates (29), and the bottom surface of each plug plate (29) is in a slope structure. The top and the bottom of each of the hot side sheet (8) and the cold side sheet (7) are provided with two plug slots (30), and the plug slots (30) are conformally arranged at the bottom of each plug plate (29).

3. A high efficiency plate heat exchanger for industrial cooling water as claimed in claim 2, wherein: The bottom of each of the two guide plates (5) on the upper side and the top of each of the two guide plates (5) on the lower side are slidably provided with a plurality of sliding blocks (9), and the top and the bottom of each of the hot side sheet (8) and the cold side sheet (7) are slidably connected with the sliding blocks (9).

4. A high efficiency plate heat exchanger for industrial cooling water as claimed in claim 3, wherein: The compacting assembly (13) comprises a compacting plate (10), and the top and the bottom of the compacting plate (10) are fixedly connected with the sliding blocks (9), and the end of the compacting plate (10) is provided with a connecting plate (12), the connecting plate (12) is fixedly connected with the compacting plate (10) through a plurality of connecting columns (11), one end of the screw rod (15) is rotatably connected with the connecting plate (12), and the other end of the screw rod (15) is fixedly connected with a hand wheel (14).

5. A high efficiency plate heat exchanger for industrial cooling water as claimed in claim 3, wherein: The base (1) top is slidably provided with two adjusting plates (2), the adjusting plates (2) end is slidably provided with several moving plates (3), one of the adjusting plates (2) on the moving plate (3) and hot side plate piece (8) fixed connection, another adjusting plate (2) on the moving plate (3) and cold side plate piece (7) fixed connection.

6. A high efficiency plate heat exchanger for industrial cooling water as claimed in claim 5, wherein: The base (1) top is fixedly provided with several drive telescopic cylinders (31), the drive telescopic cylinder (31) telescopic end and adjusting plate (2) fixed connection.

7. A high efficiency plate heat exchanger for industrial cooling water as claimed in claim 4 wherein: The end of the hot side plate piece (8), cold side plate piece (7) and pressing plate (10) is laid with sealing gasket (20).

8. A high efficiency plate heat exchanger for industrial cooling water as claimed in claim 1, wherein: One of the fixed plate (4) end is provided with two hot fluid through hole (27) and two cold fluid through hole (28), the fixed plate (4) end is fixedly provided with four liquid pipe (26), the liquid pipe (26) and hot fluid through hole (27) or cold fluid through hole (28) communication.

9. A high efficiency plate heat exchanger for industrial cooling water as claimed in claim 2, wherein: The horizontal adjacent two guide plates (5) are provided with several mounting plates (24), the mounting plate (24) and guide plate (5) fixed connection, the mounting plate (24) is fixedly provided with lifting telescopic cylinder (25), the lifting telescopic cylinder (25) telescopic end passes through mounting plate (24) and with lifting plate (23) fixed connection.

10. A high efficiency plate heat exchanger for industrial cooling water as claimed in claim 1, wherein: The fixed plate (4) and base (1) fixed connection.

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