Electromagnetic vulcanizer with double circulation cooling system

Abstract

The application relates to the technical field of electromagnetic curing machine cooling systems, in particular to an electromagnetic curing machine with a double-circulation cooling system, which comprises a cooling system main body and a double-circulation cooling assembly. The cooling system main body is composed of a main cooling cavity and an auxiliary cooling cavity, the double-circulation cooling assembly comprises a first cooling loop and a second cooling loop, and heat exchange is realized through a heat exchanger. A partition plate is provided with a communication hole and a heat insulation interlayer, fluid flow and heat transfer are optimized. The outer wall of a cooling pipe is provided with a convex structure, and the inner wall of a spiral cooling pipe is provided with a flow guide groove, so that the heat exchange efficiency is improved. Through the double-circulation design and structure optimization, the problems of low heat dissipation efficiency, high energy consumption and poor adaptability are solved, real-time monitoring and maintenance convenience are simultaneously achieved, and the complex working condition requirements are met.

Description

Technical Field

[0001] This utility model belongs to the technical field of rubber processing equipment, specifically an electromagnetic vulcanizing machine with a dual-circulation cooling system. Background Technology

[0002] In the vulcanization process of rubber products, the performance of the cooling system of the electromagnetic vulcanizing machine directly affects production efficiency and product quality.

[0003] Currently, most electromagnetic vulcanizing machines on the market employ a single-cycle cooling system, which dissipates heat from the equipment through a single cooling loop. However, this type of cooling system is prone to a decrease in heat dissipation efficiency during long-term operation and struggles to meet the rapid cooling requirements under high-temperature conditions. Furthermore, the structural design of single-cycle cooling systems is typically quite simplistic, resulting in limited adaptability to complex operating conditions. For example, some existing electromagnetic vulcanizing machine cooling systems improve heat dissipation by increasing the cooling medium flow rate or expanding the heat dissipation area, but this often requires additional energy consumption and places higher demands on the overall structural design of the equipment.

[0004] Therefore, we have made improvements to this and proposed an electromagnetic vulcanizing machine with a dual-cycle cooling system. Utility Model Content

[0005] The purpose of this invention is to solve the problems of low heat dissipation efficiency, high energy consumption, and poor structural adaptability of existing electromagnetic vulcanizing machine cooling systems.

[0006] To achieve the aforementioned objectives and address the aforementioned problems, this utility model provides an electromagnetic vulcanizing machine with a dual-circulation cooling system, comprising a cooling system body and a dual-circulation cooling assembly. The cooling system body consists of a main cooling chamber and a secondary cooling chamber, separated by a partition plate with connecting holes to facilitate fluid exchange between the two chambers. The dual-circulation cooling assembly includes a first cooling circuit and a second cooling circuit. The first cooling circuit is located within the main cooling chamber, and the second cooling circuit is located within the secondary cooling chamber. The first and second cooling circuits are connected to an external cooling medium supply device via independent inlet and outlet pipes, respectively, and heat exchange occurs between the two circuits via a heat exchanger.

[0007] The first cooling circuit includes several cooling pipes evenly distributed along the inner wall of the main cooling chamber. Both ends of the cooling pipes are connected to the inner wall of the main cooling chamber via mounting brackets, which are bolted to the inner wall. The inlet end of the cooling pipe is connected to the liquid inlet pipe via a flange, and the outlet end is connected to the liquid outlet pipe via a clamp. The second cooling circuit includes a set of spiral cooling pipes. The central axis of the spiral cooling pipes coincides with the central axis of the secondary cooling chamber. The outer side of the spiral cooling pipes is fixed to the inner wall of the secondary cooling chamber via multiple support rods. One end of each support rod is welded to the outer wall of the spiral cooling pipe, and the other end is fixed to the inner wall of the secondary cooling chamber via a threaded connection.

[0008] As a preferred technical solution of this application, the partition plate has a double-layer structure with an internal heat-insulating layer made of high-temperature resistant material. Both sides of the partition plate are coated with an anti-corrosion coating. The top of the partition plate has multiple connecting holes, the diameter of which gradually decreases from the main cooling chamber to the secondary cooling chamber to control the flow rate of the cooling medium.

[0009] As a preferred embodiment of this application, the heat exchanger includes a shell and multiple sets of heat exchange fins disposed inside the shell. The heat exchange fins are arranged in a wavy pattern, with a spacing of 5-10 mm between adjacent heat exchange fins. A first interface and a second interface are respectively provided at both ends of the shell. The first interface is connected to the liquid outlet pipe of the first cooling circuit, and the second interface is connected to the liquid inlet pipe of the second cooling circuit. A drain port is also provided at the bottom of the shell, and the drain port is connected to an external drain pipe via a valve.

[0010] As a preferred technical solution of this application, both the inlet pipe and the outlet pipe are wrapped with a heat insulation layer, which is composed of multiple layers of high-temperature resistant fiber material and has a thickness of 3-5 mm. A sealing ring is provided at the connection between the inlet pipe and the outlet pipe, and the sealing ring is made of corrosion-resistant rubber material.

[0011] As a preferred technical solution of this application, the outer wall of the cooling pipe is provided with multiple protrusions, the height of which is 2-3 mm and the spacing between adjacent protrusions is 8-12 mm. The surface of the protrusions is polished to reduce the resistance to the flow of the cooling medium.

[0012] As a preferred technical solution of this application, the inner wall of the spiral cooling pipe is provided with guide grooves, the depth of which is 1-2 mm and the width of which is 3-5 mm. The guide grooves are evenly distributed along the axial direction of the spiral cooling pipe to guide the flow direction of the cooling medium.

[0013] As a preferred technical solution of this application, both the main cooling chamber and the auxiliary cooling chamber are provided with drain ports at their bottoms, and the drain ports are connected to external drain pipes via threaded connections. The inner wall of the drain port is provided with a filter screen made of stainless steel, and the filter screen has a pore size of 1-2 mm.

[0014] As a preferred embodiment of this application, a pressure sensor is provided at the top of the main cooling chamber. The probe of the pressure sensor passes through the top wall of the main cooling chamber and extends into the chamber body. The outer wall of the probe is sealed to the top wall by a sealing element. The pressure sensor is connected to an external control device via a signal line.

[0015] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0016] In the scheme of this application:

[0017] The dual-circulation cooling assembly and the combined design of the main and secondary cooling chambers achieve highly efficient heat dissipation. The first cooling circuit absorbs heat from the main cooling chamber, while the second cooling circuit exchanges heat with the first circuit via a heat exchanger, transferring the heat to the external cooling medium supply device. The connecting holes on the partition plate allow the cooling medium to flow between the main and secondary cooling chambers as needed, while the insulation layer effectively reduces direct heat transfer, improving the overall efficiency of the cooling system.

[0018] The raised structure on the outer wall of the cooling pipes and the guide groove design on the inner wall of the spiral cooling pipes optimize the flow path of the cooling medium and increase the contact area between the cooling medium and the cooling pipe wall, thereby improving the heat exchange efficiency. The corrugated heat exchange fins in the heat exchanger further enhance the heat transfer effect, while the insulation layer composed of multiple layers of high-temperature resistant fiber material effectively reduces the heat loss of the cooling medium during transportation.

[0019] Furthermore, the installation of pressure sensors and a drain port enables real-time monitoring of the cooling system's operating status and facilitates convenient maintenance. The pressure sensors detect pressure changes within the main cooling chamber and promptly relay this information to external control devices, allowing for adjustments to the flow rate or temperature of the cooling medium. The filter screen within the drain port intercepts impurities in the cooling medium, preventing them from entering the cooling pipes and causing blockages.

[0020] In summary, this utility model solves the problems of low heat dissipation efficiency, high energy consumption, and poor structural adaptability of existing single-cycle cooling systems through the design of dual-cycle cooling components and the optimization of the specific structure of each component. At the same time, it has high practicality and ease of operation, and meets the usage requirements under complex working conditions. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0022] Figure 2 This is a schematic diagram of the partition plate.

[0023] Figure 3This is a cross-sectional view of the internal structure of the heat exchanger.

[0024] Figure 4 This is a schematic diagram of the cross-section of a spiral cooling pipe.

[0025] Figure 5 A magnified schematic diagram of the pressure sensor structure at the top of the main cooling chamber.

[0026] The attached figures are labeled as follows:

[0027] 1. Main cooling chamber; 2. Secondary cooling chamber; 3. Partition plate; 4. Connecting hole; 5. Insulation jacket; 6. Heat exchanger; 7. Corrugated heat exchange fins; 8. Spiral cooling pipe; 9. Guide channel; 10. Pressure sensor. Detailed Implementation

[0028] This utility model provides an electromagnetic vulcanizing machine with a dual-circulation cooling system, the overall structure of which is as follows: Figure 1 As shown, the device includes a main cooling chamber 1, a secondary cooling chamber 2, a partition plate 3, a connecting hole 4, a heat insulation jacket 5, a heat exchanger 6, corrugated heat exchange fins 7, a spiral cooling pipe 8, a flow guide groove 9, and a pressure sensor 10. The specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0029] The main cooling chamber 1 and the secondary cooling chamber 2 are separated by a partition plate 3, the structure of which is as follows: Figure 2 As shown, it has a double-layer structure with an internal heat-insulating layer 5 made of high-temperature resistant material. Both sides of the partition plate 3 are coated with an anti-corrosion coating. The top of the partition plate 3 has multiple connecting holes 4, the diameter of which gradually decreases from the main cooling chamber 1 to the secondary cooling chamber 2. The design of the connecting holes 4 allows the cooling medium to flow between the main cooling chamber 1 and the secondary cooling chamber 2 as needed, while controlling the flow rate of the cooling medium. The partition plate 3 is fixed to the inner walls of the main cooling chamber 1 and the secondary cooling chamber 2 with bolts. Its installation position is located in the middle of the main cooling chamber 1 and the secondary cooling chamber 2, ensuring the sealing and stability between the two chambers.

[0030] The main cooling chamber 1 is equipped with a first cooling circuit, which includes several cooling pipes evenly distributed along the inner wall of the main cooling chamber 1. Both ends of the cooling pipes are connected to the inner wall of the main cooling chamber 1 via mounting brackets, which are bolted to the inner wall. The inlet end of the cooling pipe is connected to the liquid inlet pipe via a flange, and the outlet end is connected to the liquid outlet pipe via a clamp. The outer wall of the cooling pipes has multiple raised structures, each 2-3 mm high, with a spacing of 8-12 mm between adjacent raised structures. The surfaces of the raised structures are polished to reduce resistance to the flow of the cooling medium. The cooling pipes are arranged in a ring shape, with a spacing of 10-15 mm between each pipe, ensuring that the cooling medium evenly covers the inner wall of the main cooling chamber 1.

[0031] The secondary cooling chamber 2 contains a second cooling circuit, which includes a set of spiral cooling pipes 8. The central axis of the spiral cooling pipes 8 coincides with the central axis of the secondary cooling chamber 2. The outer side of the spiral cooling pipes 8 is fixed to the inner wall of the secondary cooling chamber 2 by multiple support rods. One end of the support rod is welded to the outer wall of the spiral cooling pipe 8, and the other end is fixed to the inner wall of the secondary cooling chamber 2 by a threaded connection. The inner wall of the spiral cooling pipes 8 is provided with guide grooves 9. The guide grooves 9 have a depth of 1-2 mm and a width of 3-5 mm. The guide grooves 9 are evenly distributed along the axial direction of the spiral cooling pipes 8 to guide the flow direction of the cooling medium. The inlet end of the spiral cooling pipe 8 is connected to the liquid inlet pipe through a flange, and the outlet end is connected to the liquid outlet pipe through a clamp. The outer diameter of the spiral cooling pipe 8 is 20-30 mm, and the pitch is 15-20 mm, ensuring that the flow path of the cooling medium in the spiral cooling pipe 8 is long enough to improve the heat exchange efficiency.

[0032] The first and second cooling circuits are connected to an external cooling medium supply device via independent inlet and outlet pipes, respectively. Both the inlet and outlet pipes are covered with an insulation layer composed of multiple layers of high-temperature resistant fiber material, with a thickness of 3-5 mm. A sealing ring made of corrosion-resistant rubber is installed at the connection between the inlet and outlet pipes to ensure that the cooling medium does not leak during transport. The outlet pipe of the first cooling circuit is connected to the first interface of heat exchanger 6, and the inlet pipe of the second cooling circuit is connected to the second interface of heat exchanger 6. The structure of heat exchanger 6 is as follows: Figure 3 As shown, the heat exchanger 6 has a shell and multiple sets of corrugated heat exchange fins 7 arranged in a corrugated pattern, with a spacing of 5-10 mm between adjacent fins. A drain port is located at the bottom of the shell, connected to an external drain pipe via a valve. The heat exchanger 6 is positioned in the middle of the two chambers to ensure efficient heat transfer between the first and second cooling circuits.

[0033] Both the main cooling chamber 1 and the auxiliary cooling chamber 2 have drain ports at their bottoms. These drain ports are connected to external drain pipes via threaded connections. The inner wall of each drain port is fitted with a filter screen made of stainless steel with a pore size of 1-2 mm. The filter screen is threaded onto the inner wall of the drain port for easy disassembly and cleaning. A pressure sensor 10 is located at the top of the main cooling chamber 1. The probe of the pressure sensor 10 passes through the top wall of the main cooling chamber 1 and extends into the chamber itself. The outer wall of the probe is sealed to the top wall using a sealing element. The pressure sensor 10 is connected to an external control device via a signal line. The installation position of the pressure sensor 10 is as follows... Figure 5 As shown, its probe is located in the central region of the main cooling chamber 1, ensuring accurate detection of pressure changes within the main cooling chamber 1.

[0034] In actual operation, the cooling medium enters the inlet pipe of the first cooling circuit through an external cooling medium supply device, and then flows into the cooling pipes in the main cooling chamber 1. As the cooling medium flows within the cooling pipes, it absorbs heat from the main cooling chamber 1 and increases the contact area with the cooling pipe wall through the raised structure on the outer wall of the cooling pipe, thereby improving heat exchange efficiency. After flowing out from the outlet end of the cooling pipe, the cooling medium enters the first interface of the heat exchanger 6 through the outlet pipe. Simultaneously, the cooling medium enters the second interface of the heat exchanger 6 through the inlet pipe of the second cooling circuit. Inside the heat exchanger 6, the heat between the first and second cooling circuits is exchanged through the corrugated heat exchange fins 7. After heat exchange, the cooling medium flows out from the second interface of the heat exchanger 6 and enters the spiral cooling pipe 8 in the auxiliary cooling chamber 2. As the cooling medium flows within the spiral cooling pipe 8, the flow direction is guided by the guide groove 9, further extending the flow path and improving heat exchange efficiency. Finally, the cooling medium flows out from the outlet end of the spiral cooling pipe 8 and returns to the external cooling medium supply device through the outlet pipe.

[0035] During operation, pressure sensor 10 monitors pressure changes within the main cooling chamber 1 in real time and transmits the data to an external control device. When the pressure within the main cooling chamber 1 exceeds a set value, the external control device adjusts the flow rate or temperature of the cooling medium to ensure stable system operation. Furthermore, the filter screen in the drain port intercepts impurities in the cooling medium, preventing them from entering the cooling pipes and causing blockages. Regularly disassembling and cleaning the filter screen ensures long-term stable operation of the cooling system.

[0036] Through the above structural design and operation process, this utility model realizes the efficient heat dissipation function of the cooling system, solves the problems of low heat dissipation efficiency, high energy consumption and poor structural adaptability of the existing single-cycle cooling system, and at the same time has high practicality and ease of operation, meeting the needs of use under complex working conditions.

[0037] To enable those skilled in the art to fully understand and implement this utility model, the following supplementary explanation of the specific implementation principle of this utility model is provided in conjunction with a specific application scenario.

[0038] First, during startup of the electromagnetic vulcanizing machine, the cooling medium is supplied by an external cooling medium supply device through inlet pipes into the first cooling circuit of the main cooling chamber 1 and the second cooling circuit of the auxiliary cooling chamber 2. The cooling medium first enters the cooling pipes within the main cooling chamber 1, such as... Figure 1As shown, the cooling pipes are evenly distributed along the inner wall of the main cooling chamber 1 and connected to the inner wall of the main cooling chamber 1 by a fixing bracket. When the cooling medium flows inside the cooling pipes, it absorbs heat from the main cooling chamber 1. The raised structure on the outer wall of the cooling pipe increases the contact area between the cooling medium and the pipe wall, thereby improving the heat exchange efficiency. At the same time, the raised structure is polished, and the smooth surface design effectively reduces the resistance during the flow of the cooling medium, further optimizing the cooling effect.

[0039] Subsequently, the cooling medium flowing out of the main cooling chamber 1 enters the first port of the heat exchanger 6 through the liquid outlet pipe. Simultaneously, the cooling medium in the secondary cooling chamber 2 enters the second port of the heat exchanger 6 through the liquid inlet pipe. The corrugated heat exchange fins 7 inside the heat exchanger 6 are arranged in a corrugated pattern, with a spacing of 5-10 mm between adjacent fins; this design significantly increases the heat exchange area. As the cooling medium flows within the heat exchanger 6, the heat between the first and second cooling circuits is efficiently transferred through the corrugated heat exchange fins 7. The cooled medium, after heat exchange, flows out from the second port of the heat exchanger 6 and enters the spiral cooling pipe 8 within the secondary cooling chamber 2.

[0040] When the cooling medium flows inside the spiral cooling pipe 8, the guide grooves 9 on its inner wall guide the flow direction of the cooling medium, extending the flow path of the cooling medium, such as... Figure 4 As shown, the guide groove 9 has a depth of 1-2 mm and a width of 3-5 mm. This structural design allows the cooling medium to make more thorough contact with the inner wall of the spiral cooling pipe 8, thereby further improving the heat exchange efficiency. In addition, the outer diameter of the spiral cooling pipe 8 is 20-30 mm, and the pitch is 15-20 mm, ensuring that the flow path of the cooling medium inside the pipe is long enough, thereby enhancing the cooling effect.

[0041] During the operation of the cooling system, pressure sensor 10 monitors the pressure changes within the main cooling chamber 1 in real time and transmits the data to an external control device. When the pressure within the main cooling chamber 1 exceeds a set value, the external control device maintains stable system operation by adjusting the flow rate or temperature of the cooling medium. This process ensures the adaptability of the cooling system under complex operating conditions and avoids equipment failure caused by abnormal pressure.

[0042] In addition, both the main cooling chamber 1 and the auxiliary cooling chamber 2 are equipped with drain ports at their bottoms. The inner walls of these drain ports are fitted with filters with a pore size of 1-2 mm. These filters intercept impurities in the cooling medium, preventing them from entering the cooling pipes and causing blockages. Regularly removing and cleaning the filters ensures the long-term stable operation of the cooling system. The drain ports are connected to external drain pipes via threaded connections for easy maintenance and cleaning.

[0043] The design of partition 3 further optimizes the performance of the cooling system. For example... Figure 2As shown, the partition plate 3 has a double-layer structure with an internal heat-insulating layer 5 made of high-temperature resistant material, which can effectively reduce heat transfer between the main cooling chamber 1 and the secondary cooling chamber 2. The diameter of the connecting hole 4 at the top of the partition plate 3 gradually decreases from the main cooling chamber 1 to the secondary cooling chamber 2. The design of the connecting hole 4 allows the cooling medium to flow between the two chambers as needed, while controlling the flow rate of the cooling medium to ensure the efficient operation of the cooling system.

[0044] By combining the above steps and principles, this invention achieves highly efficient heat dissipation in the cooling system. The dual-circulation flow of the cooling medium between the main cooling chamber 1 and the auxiliary cooling chamber 2, along with the synergistic effect of the heat exchanger 6 and the spiral cooling pipe 8, significantly improves heat exchange efficiency. Simultaneously, the heat-insulating jacket design of the partition plate 3 and the flow rate control of the connecting holes 4 further optimize the overall system performance. Real-time monitoring by the pressure sensor 10 and the filter design of the drain port enhance the system's stability and ease of maintenance. These technical features collectively solve the problems of low heat dissipation efficiency, high energy consumption, and poor structural adaptability in existing single-circulation cooling systems, meeting the needs of use under complex operating conditions.

Claims

1. An electromagnetic vulcanizing machine with a dual-circulation cooling system, characterized in that, The system includes a cooling system body and a dual-circulation cooling assembly. The cooling system body includes a main cooling chamber (1) and a secondary cooling chamber (2). The main cooling chamber (1) and the secondary cooling chamber (2) are separated by a partition plate (3). The partition plate (3) is provided with multiple connecting holes (4). The dual-circulation cooling assembly includes a first cooling circuit and a second cooling circuit. The first cooling circuit is located in the main cooling chamber (1), and the second cooling circuit is located in the secondary cooling chamber (2). The first cooling circuit and the second cooling circuit are respectively connected to an external cooling medium supply device through independent liquid inlet pipes and liquid outlet pipes, and the two circuits exchange heat through a heat exchanger (6).

2. The electromagnetic vulcanizing machine with a dual-circulation cooling system according to claim 1, characterized in that, The first cooling circuit includes several cooling pipes evenly distributed along the inner wall of the main cooling chamber (1). The two ends of the cooling pipes are connected to the inner wall of the main cooling chamber (1) through a fixing bracket. The fixing bracket is installed on the inner wall of the main cooling chamber (1) by bolt fastening. The inlet end of the cooling pipe is connected to the liquid inlet pipe through a flange, and the outlet end is connected to the liquid outlet pipe through a clamp.

3. The electromagnetic vulcanizing machine with a dual-circulation cooling system according to claim 1, characterized in that, The second cooling circuit includes a set of spiral cooling pipes (8). The central axis of the spiral cooling pipes (8) coincides with the central axis of the secondary cooling chamber (2). The outer side of the spiral cooling pipes (8) is fixed to the inner wall of the secondary cooling chamber (2) by multiple support rods. One end of the support rod is welded to the outer wall of the spiral cooling pipes (8), and the other end is fixed to the inner wall of the secondary cooling chamber (2) by a threaded connection.

4. An electromagnetic vulcanizing machine with a dual-circulation cooling system according to claim 1, characterized in that, The partition plate (3) has a double-layer structure and an internal heat insulation layer (5). The heat insulation layer (5) is made of high-temperature resistant material. Both sides of the partition plate (3) are coated with an anti-corrosion coating. The top of the partition plate (3) has multiple connecting holes (4). The diameter of the connecting holes (4) gradually decreases from the main cooling chamber (1) to the secondary cooling chamber (2).

5. An electromagnetic vulcanizing machine with a dual-circulation cooling system according to claim 1, characterized in that, The heat exchanger (6) includes a shell and multiple sets of corrugated heat exchange plates (7) arranged inside the shell. The corrugated heat exchange plates (7) are arranged in a corrugated shape, and the spacing between adjacent heat exchange plates is 5-10 mm. The shell has a first interface and a second interface at both ends. The first interface is connected to the liquid outlet pipe of the first cooling circuit, and the second interface is connected to the liquid inlet pipe of the second cooling circuit. The bottom of the shell is also provided with a drain port, which is connected to an external drain pipe through a valve.

6. An electromagnetic vulcanizing machine with a dual-circulation cooling system according to claim 1, characterized in that, Both the inlet and outlet pipes are wrapped with an insulation layer, which is composed of multiple layers of high-temperature resistant fiber material and has a thickness of 3-5mm. A sealing ring is provided at the connection between the inlet and outlet pipes, and the sealing ring is made of corrosion-resistant rubber material.

7. An electromagnetic vulcanizing machine with a dual-circulation cooling system according to claim 2, characterized in that, The outer wall of the cooling pipe is provided with multiple protrusions, the height of which is 2-3mm and the spacing between adjacent protrusions is 8-12mm. The surface of the protrusions is polished.

8. An electromagnetic vulcanizing machine with a dual-circulation cooling system according to claim 3, characterized in that, The inner wall of the spiral cooling pipe (8) is provided with a guide groove (9). The guide groove (9) has a depth of 1-2 mm and a width of 3-5 mm. The guide groove (9) is evenly distributed along the axial direction of the spiral cooling pipe (8).

Images