Heat exchange plate, heat exchange assembly and plate heat exchanger for heat dissipation of grinding machine

Abstract

The utility model discloses a heat exchange plate, a heat exchange assembly and a plate heat exchanger for heat dissipation of a grinding machine. The heat exchange plate comprises a first plate sheet, the first plate sheet is provided with a first inflow hole, a first outflow hole, a second inflow hole and a second outflow hole which are used for fluid circulation, and a turbulent flow channel used for guiding fluid and improving the turbulence degree of the fluid is arranged between the first inflow hole and the first outflow hole. The turbulent flow channels can guide fluid, improve the turbulence degree of the fluid and increase the contact area and contact time between the fluid and the heat exchange plates, so that the heat exchange conduction efficiency is improved.

Description

Technical field

[0001] The utility model relates to the field of heat exchangers, in particular to a heat exchange plate, a heat exchange component and a plate heat exchanger for efficiently dissipating heat generated during the processing of a grinding machine. [Background Technology]

[0002] During the grinding process in a grinder, a significant amount of heat is generated due to mechanical friction and chemical reactions. If this heat cannot be dissipated promptly, the grinder's temperature will rise, affecting grinding accuracy and product quality, and even damaging the equipment. Conventional heat exchangers, when handling the heat generated by grinders, suffer from low heat transfer efficiency and susceptibility to clogging. Therefore, a new type of heat exchanger is needed to meet the unique needs of grinders. [Utility Model Content]

[0003] In order to solve the problems of low heat exchange efficiency and easy blockage in the current grinding production process, the utility model proposes a heat exchange plate, a heat exchange component and a plate heat exchanger for heat dissipation of a grinding machine.

[0004] The utility model is realized by the following technical solutions:

[0005] A heat exchange plate includes a first plate, wherein the first plate is provided with a first inlet hole, a first outlet hole, a second inlet hole and a second outlet hole for fluid circulation, and a turbulent channel is provided between the first inlet hole and the first outlet hole for guiding the fluid and increasing the turbulence of the fluid.

[0006] In the heat exchange plate as described above, the turbulent flow channel includes a plurality of W-shaped first protrusions opening toward the first outflow hole for increasing the turbulence of the fluid, and groove flow channels for guiding the fluid are formed between adjacent first protrusions.

[0007] As described above, the first plate includes a first flow guide channel for guiding fluid connected to the first inlet hole and a second flow guide channel for guiding fluid connected to the first outlet hole. A first sealing gasket is provided on the first plate, and the turbulent flow channel, the first flow guide channel and the second flow guide channel are all arranged in the first sealing gasket.

[0008] As described above, the turbulent flow channel further includes a plurality of inclined second protrusions connected to both sides of the first protrusion for increasing the turbulence of the fluid, the turbulent flow channel further includes a plurality of inverted V-shaped third protrusions connected to the bottom of the first protrusion for increasing the turbulence of the fluid, and the turbulent flow channel further includes a plurality of V-shaped fourth protrusions connected to the upper end opening of the first protrusion for increasing the turbulence of the fluid.

[0009] As described above, the first flow guide channel is provided with a plurality of strip-shaped fifth protrusions, and the flow channel formed between adjacent fifth protrusions can guide the fluid to the turbulent flow channel. The second flow guide channel is provided with a plurality of strip-shaped sixth protrusions, and the flow channel formed between adjacent sixth protrusions can guide the fluid flowing through the turbulent flow channel to the first outlet hole.

[0010] As described above, in a heat exchange plate, the flow channel formed between the protrusions of the adjacent lower end turbulent channels is connected to the flow channel formed between the adjacent fifth protrusions, and the flow channel formed between the protrusions of the adjacent upper end turbulent channels is connected to the flow channel formed between the adjacent sixth protrusions, and the first plate is also provided with a first sliding groove for cooperative sliding.

[0011] A heat exchange assembly includes a first end plate and a second end plate corresponding to the first end plate, wherein an intermediate plate group is connected between the first end plate and the second end plate, and the intermediate plate group is composed of a plurality of heat exchange plates as described above.

[0012] As described above, a heat exchange component, the intermediate plate group, the first end plate and the second end plate are aligned, the first plate is provided with a first sealing gasket surrounding the first guide channel and the second guide channel, the first end plate includes a second plate corresponding to the first plate, the second plate is provided with holes of the same diameter as the first inflow hole, the first outflow hole, the second inflow hole and the second outflow hole, the second plate is also provided with a second sealing gasket for sealing the holes and a second sliding groove for cooperating sliding, the second end plate includes a third plate corresponding to the first plate, the third plate is provided with the same structure as the turbulent channel, the first guide channel and the second guide channel, the third plate is provided with the same sealing gasket as the first sealing gasket and a third sliding groove for cooperating sliding.

[0013] A plate heat exchanger for dissipating heat in a grinding machine comprises a pillar and a front end plate corresponding to the height of the pillar, an upper guide rod and a lower guide rod are fixedly connected between the pillar and the front end plate, a heat exchange component as described above is adjacently connected to the front end plate, and a rear end plate corresponding to the front end plate and a fastening device for clamping the front end plate and the rear end plate are adjacently connected to the heat exchange component.

[0014] As described above, a plate heat exchanger for heat dissipation of a grinding machine is provided with a first sliding groove, the upper guide rod and the lower guide rod can slide in cooperation with the first sliding groove, the second sliding groove and the third sliding groove, and the front end plate is provided with a first inlet channel and a second inlet channel for fluid to flow in, which are aligned with the first inlet hole and the second inlet hole, and a first outlet channel and a second outlet channel for fluid to flow out, which are aligned with the first outflow hole and the second outflow hole.

[0015] Compared with the prior art, the heat exchange plate, heat exchange assembly, and plate heat exchanger for heat dissipation of a grinding machine proposed in the present invention have the following beneficial effects:

[0016] 1. The heat exchange plate of the present invention includes a first plate, which is provided with a first inlet, a first outlet, a second inlet, and a second outlet for fluid circulation. A turbulence channel is provided between the first inlet and the first outlet for guiding the fluid and increasing the turbulence of the fluid. The turbulence channel guides the fluid and increases the turbulence of the fluid, thereby increasing the contact area and contact time between the fluid and the heat exchange plate, thereby improving heat transfer efficiency.

[0017] 2. The heat exchange plate of the present invention is provided with a first flow guide channel and a second flow guide channel connected to the turbulent flow channel, which can guide the inflow and outflow of fluid to avoid clogging of the heat exchange plate;

[0018] 3. The adjacent heat exchange plates of the heat exchange assembly of the present invention are placed in a rotation around the center of the plate plane to achieve heat exchange in a countercurrent or crosscurrent manner, ensuring that the heat of the hot fluid can be fully transferred to the cold fluid, thereby improving the heat exchange efficiency.

Brief Description of the Drawings

[0019] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments.

[0020] Figure 1 This is a schematic structural diagram of the heat exchange plate of the present utility model;

[0021] Figure 2 for Figure 1 Structural diagram from another perspective;

[0022] Figure 3 This is an exploded schematic diagram of the heat exchange component of the present invention;

[0023] Figure 4 This is a structural diagram of the first end plate of the present invention;

[0024] Figure 5 for Figure 4 Structural diagram from another perspective;

[0025] Figure 6 This is a structural diagram of the second end plate of the present invention;

[0026] Figure 7 for Figure 6 Structural diagram from another perspective;

[0027] Figure 8This is a schematic structural diagram of a plate heat exchanger for heat dissipation in a grinding machine according to the present invention. [Specific implementation method]

[0028] In order to make the technical problems, technical solutions and beneficial effects solved by the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0029] Specific embodiment, combined with Figures 1 to 8 As shown, the technical solution of the present invention is further illustrated. A heat exchange plate includes a first plate 100. The first plate 100 is provided with a first inlet hole 101 and a second inlet hole 103 for fluid to flow in, and a first outflow hole 102 and a second outflow hole 104 for fluid to flow out. The first inflow hole 101 is provided with a first guide channel 106 for guiding the fluid, and the first outflow hole 102 is provided with a second guide channel 107. A turbulent flow channel 105 for increasing the turbulence of the fluid is provided between the first guide channel 106 and the second guide channel 107. The turbulent flow channel 105, the first guide channel 106 and the second guide channel 107 constitute a part for dispersed circulation of the fluid, which can improve the heat exchange efficiency. A first sealing gasket 13 for sealing is provided on the first plate 100, and the turbulent flow channel 105, the first guide channel 106 and the second guide channel 107 are all arranged in the first sealing gasket 13. When the fluid flows through the heat exchange plate, when entering the first inflow hole 101, the first guide channel 106 at the lower end of the heat exchange plate can guide the incoming fluid, and guide the fluid into the flow channel composed of the turbulent channel 105 and the first sealing gasket 13. The turbulent channel 105 can guide the fluid, and the protrusion of the turbulent channel 105 can increase the degree of turbulence. As the fluid flows toward the first outflow hole 102, the fluid is guided when entering the second guide channel 107 at the upper end of the heat exchange plate, so that the turbulence of the cold and hot fluids when flowing between the plates is enhanced, thereby improving the heat exchange efficiency and avoiding fluid blockage on the heat exchange plate.

[0030] In this embodiment, the turbulent flow channel 105 includes a plurality of W-shaped first protrusions 1051 with openings toward the first outflow hole 102 for increasing the turbulence of the fluid, and a U-shaped groove flow channel 1052 is formed between adjacent first protrusions 1051 to guide the fluid. The turbulent flow channel 105 also includes a plurality of inclined second protrusions 1053 connected to both sides of the lower end of the first protrusion 1051 near the first inflow hole 101 and the second inflow hole 103, and the turbulent flow channel 105 also includes a plurality of inverted V-shaped third protrusions 1054 centered near the first inflow hole 101 and the second inflow hole 103. The turbulent flow channel 105 also includes a plurality of The first outflow hole 102 has a V-shaped fourth protrusion 1055 connected to the upper end opening of the first protrusion 1051, the first guide channel 106 is provided with a plurality of strip-shaped fifth protrusions 1061, and the second guide channel 107 is provided with a plurality of strip-shaped sixth protrusions 1071. The flow channel formed between adjacent fifth protrusions 1061 can guide the fluid to the turbulent channel 105, and the fluid is guided and diffused by the groove flow channel 1052. At the same time, the fluid will increase the turbulence of the fluid when it flows over the first protrusion 1051. The flow channel formed between adjacent sixth protrusions 1071 can guide the fluid in the turbulent channel 105 to the first outflow hole 102.

[0031] Furthermore, the flow channels formed between adjacent second protrusions 1053 and between adjacent third protrusions 1054 are connected to the flow channels formed between adjacent fifth protrusions 1061 , and the flow channels formed between adjacent fourth protrusions 1055 are connected to the flow channels formed between adjacent sixth protrusions 1071 .

[0032] Further, if Figure 2 As shown, the heights of the protrusions of the turbulent channel 105, the first flow guide channel 106 and the second flow guide channel 107 are lower than the height of the first sealing gasket 13, ensuring that the fluid forms a stable heat exchange channel on the heat exchange plate while avoiding fluid leakage.

[0033] Furthermore, the first plate 100 is provided with a first sliding groove 108 for sliding cooperation.

[0034] A heat exchange assembly includes a first end plate 11 and a second end plate 12 corresponding to the first end plate 11. An intermediate plate assembly 10 is connected between the first and second end plates 11, 12. The intermediate plate assembly 10 comprises a plurality of heat exchange plates as described above, with adjacent heat exchange plates positioned in the same direction, rotating one rotation around the center of the plate plane. Positioning adjacent heat exchange plates rotates one rotation to ensure countercurrent or crosscurrent heat exchange between hot and cold fluids within the intermediate plate assembly 10.

[0035] Furthermore, the intermediate plate group 10, the first end plate 11 and the second end plate 12 are aligned, the first end plate 11 includes a second plate 110 corresponding to the first plate 100, the second plate 110 is provided with holes of equal diameter to the first inflow hole 101, the first outflow hole 102, the second inflow hole 103 and the second outflow hole 104, the second plate 110 is also provided with a second sealing gasket 14 for sealing and a second sliding groove 111 for sliding cooperation, the second end plate 12 includes a third plate 120 corresponding to the first plate 100, the third plate 120 is provided with the same structure as the turbulent channel 105, the first guide channel 106 and the second guide channel 107, the third plate 120 is provided with a sealing gasket identical to the first sealing gasket 13 and a third sliding groove 121 for sliding cooperation.

[0036] Further, if Figure 3 As shown, the intermediate plate assembly 10, the first end plate 11, and the second end plate 12 are arranged with the sealing gasket facing the same direction during assembly. When the number of heat exchange plates is odd, the second end plate 12 and the first heat exchange plate closest to the first end plate 11 are rotated 180 degrees around the center of the plate plane. When the number of heat exchange plates is even, the second end plate 12 and the first heat exchange plate closest to the first end plate 11 are rotated 360 degrees around the center of the plate plane.

[0037] Furthermore, the heat exchange plate, the first end plate 11 and the second end plate 12 are pressed from stainless steel, which is more resistant to acid and alkali and more resistant to corrosion.

[0038] A plate heat exchanger for cooling the grinding machine, such as Figure 8As shown, it includes a pillar 5 and a front end plate 21 corresponding to the height of the pillar 5, and an upper guide rod 3 and a lower guide rod 4 are fixedly connected between the pillar 5 and the front end plate 21, and the upper guide rod 3 and the lower guide rod 4 can respectively cooperate with the first sliding groove 108, the second sliding groove 111 and the third sliding groove 121, and the front end plate 21 is adjacently connected to a heat exchange component as described above, and the heat exchange component is used for fluid circulation and heat exchange, and the heat exchange component is adjacently connected to the rear end plate 22 for cooperating with the front end plate 21 and a fastening device 23 for clamping the front end plate 21 and the rear end plate 22, and the front end plate 21, the rear end plate 22 and the fastening device 23 constitute a clamping part 2. The pressing portion 2 can compact the sealing gasket in the heat exchange component to form a stable heat exchange flow channel. The side of the heat exchange component with the sealing gasket faces the front end plate 21. The intermediate plate group 10, the first end plate 11 and the second end plate 12 can respectively cooperate with the upper guide rod 3 and the lower guide rod 4 through the first sliding groove 108, the second sliding groove 111 and the third sliding groove 121, and slide horizontally along the upper guide rod 3 between the upper guide rod 3 and the lower guide rod 4. At the same time, they can also be disassembled along the upper guide rod 3 or the lower guide rod 4 for cleaning.

[0039] Furthermore, the fastening device 23 is a bolt. The fastening device 23 can also be a clamp.

[0040] Furthermore, the front end plate 21 is provided with a first inlet channel 211 and a second inlet channel 213 for fluid inflow, aligned with the first inlet hole 101 and the second inlet hole 103, and a first outlet channel 212 and a second outlet channel 214 for fluid outflow, aligned with the first outlet hole 102 and the second outlet hole 104. Hot fluid enters through the first inlet channel 211, and cold fluid enters through the second inlet channel 213. After heat exchange in the heat exchange assembly, the hot fluid flows out through the first outlet channel 212, and the cold fluid flows out through the second outlet channel 214.

[0041] The working principle of this embodiment is as follows:

[0042] The utility model proposes a heat exchange plate, a heat exchange component and a plate heat exchanger for heat dissipation of a grinding machine. During the operation of the grinding machine, the hot fluid enters through the first inlet channel 211, passes through the first end plate 11 and enters the first heat exchange plate close to the first end plate 11, and is guided and diffused through the flow channel on the heat exchange plate. The cold fluid enters through the second inlet channel 213. Since the adjacent heat exchange plates are rotated around the center of the plane, the cold fluid passes through the first end plate 11 and enters the second heat exchange plate close to the first end plate 11, and is guided and diffused through the flow channel on the heat exchange plate. The two fluids perform countercurrent heat exchange between the plates. During the process, the heat of the hot fluid is transferred to the cold fluid through the heat exchange plate, thereby realizing heat transfer; the first guide channel 106 and the second guide channel 107 are both connected to the turbulent channel 105, and the protrusions on the first guide channel 106 and the second guide channel 107 can guide the fluid to prevent it from being blocked in the plate. The groove flow channel 1052 of the turbulent channel 105 can allow the fluid to pass through, and at the same time can increase the turbulence of the fluid in its space, thereby improving the heat exchange efficiency; after the hot and cold fluids complete the heat exchange, the hot fluid flows out from the first outlet channel 212, and the cold fluid flows out from the second outlet channel 214, completing the heat exchange between the hot and cold fluids.

Claims

1. A heat exchange plate, comprising a first plate (100), wherein the first plate (100) is provided with a first inlet hole (101), a first outlet hole (102), a second inlet hole (103) and a second outlet hole (104) for fluid circulation, characterized in that: A turbulent flow channel (105) is provided between the first inflow hole (101) and the first outflow hole (102) for guiding the fluid and increasing the turbulence of the fluid; The turbulent flow channel (105) comprises a plurality of W-shaped first protrusions (1051) opening toward the first outflow hole (102) for increasing the turbulence of the fluid, and groove flow channels (1052) for guiding the fluid are formed between adjacent first protrusions (1051); The first plate (100) comprises a first flow guide channel (106) for guiding fluid and connected to the first inflow hole (101), and a second flow guide channel (107) for guiding fluid and connected to the first outflow hole (102). A first sealing gasket (13) is provided on the first plate (100), and the turbulent flow channel (105), the first flow guide channel (106), and the second flow guide channel (107) are all arranged in the first sealing gasket (13); The turbulent flow channel (105) further includes a plurality of inclined second protrusions (1053) connected to both sides of the first protrusion (1051) for increasing the turbulence of the fluid, the turbulent flow channel (1055) further includes a plurality of inverted V-shaped third protrusions (1054) connected to the bottom of the first protrusion (1051) for increasing the turbulence of the fluid, and the turbulent flow channel (1055) further includes a plurality of V-shaped fourth protrusions (1055) connected to the upper opening of the first protrusion (1051) for increasing the turbulence of the fluid.

2. A heat exchange plate according to claim 1, characterized in that: The first flow guide channel (106) is provided with a plurality of strip-shaped fifth protrusions (1061), and the flow channels formed between adjacent fifth protrusions (1061) can guide the fluid to the turbulent flow channel (105). The second flow guide channel (107) is provided with a plurality of strip-shaped sixth protrusions (1071), and the flow channels formed between adjacent sixth protrusions (1071) can guide the fluid flowing through the turbulent flow channel (105) to the first outflow hole (102).

3. The heat exchange plate according to claim 2, characterized in that: The flow channel formed between the protrusions of the adjacent lower end turbulent flow channels (105) is connected to the flow channel formed between the adjacent fifth protrusions (1061), and the flow channel formed between the protrusions of the adjacent upper end turbulent flow channels (105) is connected to the flow channel formed between the adjacent sixth protrusions (1071), and the first plate (100) is also provided with a first sliding groove (108) for sliding cooperation.

4. A heat exchange component, characterized in that: The heat exchanger comprises a first end plate (11) and a second end plate (12) corresponding to the first end plate (11), wherein an intermediate plate group (10) is connected between the first end plate (11) and the second end plate (12), and the intermediate plate group (10) is composed of a plurality of heat exchange plates according to any one of claims 1 to 3.

5. A heat exchange assembly according to claim 4, characterized in that: The intermediate plate group (10), the first end plate (11) and the second end plate (12) are aligned, the first plate (100) is provided with a first sealing gasket (13) surrounding the first flow guide channel (106) and the second flow guide channel (107), the first end plate (11) includes a second plate (110) corresponding to the first plate (100), and the second plate (110) is provided with holes with the same diameter as the first inflow hole (101), the first outflow hole (102), the second inflow hole (103) and the second outflow hole (104). The second plate (110) is further provided with a second sealing gasket (14) for sealing the hole and a second sliding groove (111) for cooperating with the sliding. The second end plate (12) includes a third plate (120) corresponding to the first plate (100). The third plate (120) is provided with the same structure as the turbulent channel (105), the first guide channel (106) and the second guide channel (107). The third plate (120) is provided with the same sealing gasket as the first sealing gasket (13) and a third sliding groove (121) for cooperating with the sliding.

6. A plate heat exchanger for heat dissipation of a grinding machine, characterized in that: The invention comprises a support (5) and a front end plate (21) corresponding in height to the support (5), an upper guide rod (3) and a lower guide rod (4) being fixedly connected between the support (5) and the front end plate (21), a heat exchange component according to claim 5 being adjacently connected to the front end plate (21), a rear end plate (22) corresponding to the front end plate (21) and a fastening device (23) for clamping the front end plate (21) and the rear end plate (22) being adjacently connected to the heat exchange component.

7. A plate heat exchanger for heat dissipation of a grinding machine according to claim 6, characterized in that: The first plate (100) is provided with a first sliding groove (108), the upper guide rod (3) and the lower guide rod (4) are capable of sliding in cooperation with the first sliding groove (108), the second sliding groove (111) and the third sliding groove (121), and the front end plate (21) is provided with a first inlet channel (211) and a second inlet channel (213) for fluid inflow, which are aligned with the first inlet hole (101) and the second inlet hole (103), and a first outlet channel (212) and a second outlet channel (214) for fluid outflow, which are aligned with the first outflow hole (102) and the second outflow hole (104).

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