A temperature-uniform heating plate

Abstract

The application discloses a heating plate with uniform temperature, the inside of the heating plate body is provided with left oil passage through holes and right oil passage through holes, and the left oil passage through holes and the right oil passage through holes are uniformly and spacedly distributed in the heating plate body; the left end of the left oil passage through hole is communicated with a high-pressure oil passage assembly, and the right end is communicated with a low-pressure oil passage assembly; the left end of the right oil passage through hole is communicated with the low-pressure oil passage assembly, and the right end is communicated with the high-pressure oil passage assembly; the high-pressure oil passage assembly and the low-pressure oil passage assembly are both communicated with an oil station assembly, the oil liquid in the left oil passage through hole and the right oil passage through hole flows in opposite directions; the left oil passage through hole and the right oil passage through hole are of the same structure. The application solves the problem that the temperature of the working surface of the heating plate is not uniform due to the fact that the oil holes or oil grooves need to move a distance, so that the temperature difference between the inlet and the outlet is large.

Description

Technical Field

[0001] This invention relates to the field of heating plate technology, and more specifically, to a heating plate with uniform temperature. Background Technology

[0002] A high-temperature hydraulic oil heating plate is a heating device that uses circulating high-temperature hydraulic oil as a heat carrier to evenly transfer heat energy to the working surface. It achieves stable and efficient heating by designing special flow channels inside the metal plate, allowing the high-temperature oil to circulate within them.

[0003] Currently, some heating plates on the market typically have oil holes or serpentine oil grooves inside their interior. High-temperature hydraulic oil is then delivered through the inlet to the outlet at the other end of the oil hole or oil groove, allowing the high-temperature hydraulic oil to heat the working surface of the heating plate. However, since the oil needs to travel a certain distance through the oil hole or oil groove, there is a significant temperature difference between the inlet and outlet, resulting in uneven temperature distribution on the working surface of the heating plate.

[0004] To address the aforementioned problems, this application proposes a heating plate with uniform temperature. Summary of the Invention

[0005] To address the problems in related technologies, this invention provides a heating plate with uniform temperature, which can simultaneously supply and discharge oil from both sides of the heating plate body, causing the oil between adjacent oil holes to move in opposite directions, effectively reducing the temperature difference between the two sides of the heating plate body and making its temperature more uniform.

[0006] Therefore, the specific technical solution adopted by the present invention is as follows: A heating plate with uniform temperature includes a heating plate body. The heating plate body has a left-direction oil passage and a right-direction oil passage inside, and the left-direction and right-direction oil passages are evenly spaced within the heating plate body. The oil flows in opposite directions within the left-direction and right-direction oil passages. The left end of the left-direction oil passage is connected to a high-pressure oil circuit assembly, and the right end is connected to a low-pressure oil circuit assembly. The left end of the right-direction oil passage is connected to the low-pressure oil circuit assembly, and the right end is connected to the high-pressure oil circuit assembly. Both the high-pressure and low-pressure oil circuit assemblies are connected to an oil station assembly.

[0007] As a further embodiment of the present invention, the high-pressure oil circuit assembly includes a main oil inlet pipe, the bottom end of which is connected to the oil station assembly; the other end of the main oil inlet pipe is connected to a left high-pressure oil inlet pipe and a right high-pressure oil inlet pipe respectively; the left high-pressure oil inlet pipe is connected to the left end of the left-direction oil circuit through hole; the right high-pressure oil inlet pipe is connected to the right end of the right-direction oil circuit through hole; and a linkage flow regulating valve is installed on the connection end of the left high-pressure oil inlet pipe and the right high-pressure oil inlet pipe to the heating plate body.

[0008] As a further embodiment of the present invention, the low-pressure oil circuit assembly includes a main return oil pipe, the bottom end of which is connected to the oil station assembly, and the other end of which is connected to a left low-pressure return oil pipe and a right low-pressure return oil pipe respectively; the left low-pressure return oil pipe is connected to the left end of the right-direction oil circuit through hole; and the right low-pressure return oil pipe is connected to the right end of the left-direction oil circuit through hole.

[0009] As a further embodiment of the present invention, the left-hand oil passage and the right-hand oil passage have the same structure, both being a gradient structure in which the cross-sectional area gradually decreases from both ends to the middle.

[0010] As a further embodiment of the present invention, the oil station component includes a hydraulic oil tank, the top of which is connected to the bottom end of a main return oil pipe. A high-pressure oil pump is installed inside the hydraulic oil tank, the output end of which is connected to the bottom end of a main inlet oil pipe, and the bottom end of the main inlet oil pipe passes through the top wall of the hydraulic oil tank.

[0011] As a further embodiment of the present invention, the top of the hydraulic oil tank is also connected to an oil injection end, and a heater is also installed inside the hydraulic oil tank.

[0012] The beneficial effects of this invention are as follows: 1. This invention utilizes a combination of left-side and right-side oil passages, a high-pressure oil circuit assembly, and a low-pressure oil circuit assembly. During operation, the left and right high-pressure oil inlet pipes supply oil simultaneously from both sides of the heating plate body, and the oil then flows back to the hydraulic oil tank from the left and right low-pressure return pipes, respectively, completing the circulation. Simultaneously, during oil supply, the oil in the left-side and right-side oil passages moves towards each other, and the two types of passages are evenly spaced within the heating plate body, resulting in a reasonable layout that allows for thorough and uniform heating of the working surface of the heating plate body, effectively reducing the temperature difference between the two sides of the heating plate body and making its temperature more uniform.

[0013] 2. In addition, the linkage flow regulating valves installed on the connection ends of the left and right high-pressure oil inlet pipes and the heating plate body can synchronously adjust the flow on both sides through the same control knob, ensuring that the oil pressure and flow rate of the reverse flow are completely symmetrical, avoiding local temperature differences caused by excessive flow on one side. The gradually decreasing cross-sectional area of ​​the oil orifice from both ends to the middle can prevent the oil from forming a flow rate bottleneck in the middle section of the orifice, ensuring uniform flow throughout the orifice, which can further improve the temperature uniformity. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0015] Figure 1 This is a schematic diagram of the overall structure of a heating plate with uniform temperature according to an embodiment of the present invention. Figure 2 This is a schematic cross-sectional view of a hydraulic oil tank for a heating plate with uniform temperature according to an embodiment of the present invention. Figure 3 This is a schematic diagram of the operation of the left-side oil passage hole of a heating plate with uniform temperature according to an embodiment of the present invention. Figure 4 This is a schematic diagram of the right-hand oil passage of a heating plate with uniform temperature according to an embodiment of the present invention. Figure 5 This is a schematic diagram of the cross-sectional structure of the left-side oil passage of a heating plate with uniform temperature according to an embodiment of the present invention.

[0016] In the picture: 1. Heating plate body; 2. Left-side oil passage; 3. High-pressure oil circuit assembly; 31. Main oil inlet pipe; 32. Left high-pressure oil inlet pipe; 33. Right high-pressure oil inlet pipe; 4. Low-pressure oil circuit assembly; 41. Main return oil pipe; 42. Left low-pressure return oil pipe; 43. Right low-pressure return oil pipe; 5. Right-side oil passage; 6. Oil station assembly; 61. Hydraulic oil tank; 62. High-pressure oil pump; 63. Oil filling end; 64. Heater; 7. Linkage flow regulating valve. Detailed Implementation

[0017] To further illustrate the various embodiments, the present invention provides accompanying drawings, which are part of the disclosure of the present invention. These drawings are mainly used to illustrate the embodiments and can be used in conjunction with the relevant descriptions in the specification to explain the operating principles of the embodiments. With reference to these drawings, those skilled in the art should be able to understand other possible implementation methods and the advantages of the present invention. The components in the drawings are not drawn to scale, and similar component symbols are generally used to represent similar components. According to an embodiment of the present invention, a heating plate with uniform temperature is provided.

[0018] Please refer to the instruction manual appendix. Figure 1-5According to an embodiment of the present invention, a heating plate with uniform temperature includes a heating plate body 1. The heating plate body 1 has a left-direction oil passage 2 and a right-direction oil passage 5 inside, and the left-direction oil passage 2 and the right-direction oil passage 5 are evenly spaced within the heating plate body 1. The oil flows in opposite directions within the left-direction oil passage 2 and the right-direction oil passage 5. The left end of the left-direction oil passage 2 is connected to a high-pressure oil passage assembly 3, and the right end is connected to a low-pressure oil passage assembly 4. The left end of the right-direction oil passage 5 is connected to the low-pressure oil passage assembly 4, and the right end is connected to the high-pressure oil passage assembly 3. Both the high-pressure oil passage assembly 3 and the low-pressure oil passage assembly 4 are connected to an oil station assembly 6. The high-pressure oil passage assembly 3 includes a main oil inlet pipe 31, the bottom end of which is connected to the oil station assembly 6. The other end of the main oil inlet pipe 31 is connected to a left high-pressure oil passage assembly 6. The system includes an oil inlet pipe 32 and a right high-pressure oil inlet pipe 33; the left high-pressure oil inlet pipe 32 is connected to the left end of the left-direction oil passage 2; the right high-pressure oil inlet pipe 33 is connected to the right end of the right-direction oil passage 5; both the left high-pressure oil inlet pipe 32 and the right high-pressure oil inlet pipe 33 are equipped with a linkage flow regulating valve 7 at their connection ends with the heating plate body 1; the low-pressure oil circuit assembly 4 includes a main return oil pipe 41, the bottom end of which is connected to the oil station assembly 6, and the other end of which is connected to the left low-pressure oil return pipe 42 and the right low-pressure oil return pipe 43 respectively; the left low-pressure oil return pipe 42 is connected to the left end of the right-direction oil passage 5; the right low-pressure oil return pipe 43 is connected to the right end of the left-direction oil passage 2; the left-direction oil passage 2 and the right-direction oil passage 5 have the same structure, both being a gradually decreasing cross-sectional area from both ends to the middle.

[0019] The left-side oil passage 2, right-side oil passage 5, high-pressure oil circuit assembly 3, and low-pressure oil circuit assembly 4 work together. During use, the left high-pressure oil inlet pipe 32 and the right high-pressure oil inlet pipe 33 supply oil from both sides of the heating plate body 1, respectively. Then, the oil flows back to the hydraulic oil tank 61 from the left low-pressure oil return pipe 42 and the right low-pressure oil return pipe 43, respectively, completing the circulation. At the same time, during oil supply, the oil in the left-side oil passage 2 and the right-side oil passage 5 moves towards each other. Moreover, the two types of passages are evenly spaced and distributed in the heating plate body 1, which is a reasonable layout. This allows for sufficient and uniform heating of the working surface of the heating plate body 1, effectively reducing the temperature difference between the two sides of the heating plate body 1 and making its temperature more uniform.

[0020] Among them, the linkage flow regulating valve 7 installed on the connection end of the left high pressure oil inlet pipe 32 and the right high pressure oil inlet pipe 33 with the heating plate body 1 can synchronously regulate the flow on both sides through the same control knob, ensuring that the oil pressure and flow rate of the reverse flow are completely symmetrical, avoiding local temperature difference caused by excessive flow on one side. The gradually decreasing cross-sectional area of ​​the oil hole from both ends to the middle can avoid the formation of flow rate bottleneck in the middle section of the channel, ensuring uniform flow throughout the channel, and further improving the temperature uniformity.

[0021] In one embodiment, please refer to the appendix to the specification. Figure 1 , Figure 2 , Figure 3 and Figure 4 As a further embodiment of the present invention, the oil station component 6 includes a hydraulic oil tank 61, the top of which is connected to the bottom end of the main return oil pipe 41. A high-pressure oil pump 62 is installed inside the hydraulic oil tank 61, the output end of which is connected to the bottom end of the main inlet oil pipe 31, and the bottom end of the main inlet oil pipe 31 passes through the top wall of the hydraulic oil tank 61. An oil filling end 63 is also connected to the top of the hydraulic oil tank 61. A heater 64 is also installed inside the hydraulic oil tank 61. When in use, the high-pressure oil pump 62 operates, sending high-temperature hydraulic oil through the main oil inlet pipe 31 into the left high-pressure oil inlet pipe 32 and the right high-pressure oil inlet pipe 33. During this process, the heater 64 continuously heats the oil in the hydraulic oil tank 61.

[0022] Workflow: In use, firstly, hydraulic oil is injected into the hydraulic oil tank 61 through the oil filling end 63. Then, the heater 64 operates to heat the oil in the hydraulic oil tank 61. When heating the heating plate body 1 is required, the high-pressure oil pump 62 operates, sending the high-temperature hydraulic oil from the hydraulic oil tank 61 through the main inlet pipe 31 into the left high-pressure inlet pipe 32 and the right high-pressure inlet pipe 33 respectively. Subsequently, the left high-pressure inlet pipe 32 sends oil from the left end into the left-direction oil passage 2, where the oil flows from left to right and finally flows out from the right end, entering the right low-pressure return pipe 43. Simultaneously, the right high-pressure inlet pipe 33 sends oil from the right end into the right-direction oil passage 5, where the oil flows from right to left and finally flows out from the left end, entering the left low-pressure return pipe 42. Afterward, the two oil flows through the right low-pressure return pipe 43 and the left low-pressure return pipe 42 respectively. The oil flows into the main return pipe 41 and eventually back into the hydraulic oil tank 61, completing a full cycle. This process achieves uniform heating of the working surface of the heating plate body 1.

[0023] It should be noted that the high-pressure oil pump 62, heater 64 and linkage flow regulating valve 7 adopt conventional designs in the field, and their working principles are well known to those skilled in the art, so they will not be described in detail here.

[0024] The above are merely preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A heating plate with uniform temperature, comprising a heating plate body (1), characterized in that: The heating plate body (1) has a left-direction oil passage (2) and a right-direction oil passage (5) inside, and the left-direction oil passage (2) and the right-direction oil passage (5) are evenly spaced inside the heating plate body (1); the oil in the left-direction oil passage (2) and the right-direction oil passage (5) flows in opposite directions; the left end of the left-direction oil passage (2) is connected to the high-pressure oil passage assembly (3), and the right end is connected to the low-pressure oil passage assembly (4); the left end of the right-direction oil passage (5) is connected to the low-pressure oil passage assembly (4), and the right end is connected to the high-pressure oil passage assembly (3); the high-pressure oil passage assembly (3) and the low-pressure oil passage assembly (4) are both connected to the oil station assembly (6).

2. The heating plate with uniform temperature according to claim 1, characterized in that: The high-pressure oil circuit assembly (3) includes a main oil inlet pipe (31), the bottom end of which is connected to the oil station assembly (6); the other end of the main oil inlet pipe (31) is connected to a left high-pressure oil inlet pipe (32) and a right high-pressure oil inlet pipe (33); the left high-pressure oil inlet pipe (32) is connected to the left end of the left-direction oil circuit through hole (2); the right high-pressure oil inlet pipe (33) is connected to the right end of the right-direction oil circuit through hole (5); a linkage flow regulating valve (7) is installed on the connection end of the left high-pressure oil inlet pipe (32) and the right high-pressure oil inlet pipe (33) to the heating plate body (1).

3. The heating plate with uniform temperature according to claim 1, characterized in that: The low-pressure oil circuit assembly (4) includes a main return oil pipe (41), the bottom end of which is connected to the oil station assembly (6), and the other end of the main return oil pipe (41) is connected to a left low-pressure return oil pipe (42) and a right low-pressure return oil pipe (43); the left low-pressure return oil pipe (42) is connected to the left end of the right-direction oil circuit through hole (5); and the right low-pressure return oil pipe (43) is connected to the right end of the left-direction oil circuit through hole (2).

4. The heating plate with uniform temperature according to claim 1, characterized in that: The left-side oil passage (2) and the right-side oil passage (5) have the same structure, both being a gradual structure with the cross-sectional area decreasing from both ends to the middle.

5. A heating plate with uniform temperature according to claim 1, characterized in that: The oil station component (6) includes a hydraulic oil tank (61), the top of which is connected to the bottom end of the main return oil pipe (41). A high-pressure oil pump (62) is installed inside the hydraulic oil tank (61), the output end of which is connected to the bottom end of the main inlet oil pipe (31), and the bottom end of the main inlet oil pipe (31) passes through the top wall of the hydraulic oil tank (61).

6. A heating plate with uniform temperature according to claim 5, characterized in that: The top of the hydraulic oil tank (61) is also connected to an oil filling end (63), and a heater (64) is also installed inside the hydraulic oil tank (61).

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