An internal cooling water system for tire vulcanization process

Abstract

This utility model relates to the field of cooling technology and discloses an internal cooling water system for tire vulcanization processes. The system includes a cooling tower, a circulating cooling water pump group, a pressure tank, a plate heat exchanger, and the internal cooling water pump group. The pressure tank's sidewall is connected to an internal cooling water pipeline, a high-pressure makeup water pump group, and a drainage pipeline. A level transmitter is installed on the outer wall of the pressure tank. A pneumatic switch valve II is installed on the drainage pipeline. The level transmitter is electrically connected to both the high-pressure makeup water pump group and the pneumatic switch valve II. The plate heat exchanger connects the pressure tank, the internal cooling water pump group, the circulating cooling water pump group, and the cooling tower. The cooling tower is connected to the circulating cooling water pump group. This utility model achieves physical separation of the two parameters, "pressure" and "heat," by adding a pressure tank and a plate heat exchanger, thereby significantly reducing the inlet and outlet pressure difference and energy consumption of the internal cooling water pump, and thus greatly reducing the overall energy consumption of the system.

Description

Technical Field

[0001] This utility model relates to the field of cooling technology, specifically to an internal cooling water cooling system for tire vulcanization processes. Background Technology

[0002] A key process in tire manufacturing is vulcanization. This process requires a high-temperature, high-pressure medium to heat and compress the tire. For larger tires with greater thickness, such as truck tires, forklift tires, and crane tires, high-pressure cooling water needs to be circulated inside the tire before the vulcanization process is complete; this is called internal cooling water, and it facilitates the next step in the process.

[0003] In traditional processes, this high-pressure cooling water, after exiting the vulcanizing machine, undergoes throttling and pressure reduction before directly entering an open cooling tower for cooling (see...). Figure 1 This results in a significant waste of the pressure potential energy of the high-pressure water, and after cooling, it requires a high-power multi-stage water pump to pressurize it again, which consumes a huge amount of energy. Utility Model Content

[0004] The purpose of this invention is to overcome the shortcomings of the existing technology and provide an internal cooling water system for tire vulcanization process.

[0005] To achieve the above objectives, the technical solution of this utility model is: an internal cooling water system for tire vulcanization process, comprising a cooling tower, a circulating cooling water pump group, a pressure tank, a plate heat exchanger, and an internal cooling water pump group. The side wall of the pressure tank is respectively connected to an internal cooling water pipeline, a high-pressure water supply pump group, and a drainage pipeline. A level transmitter is provided on the outer wall of the pressure tank. A pneumatic switch valve II is provided on the drainage pipeline. The level transmitter is electrically connected to the high-pressure water supply pump group and the pneumatic switch valve II. The plate heat exchanger is respectively connected to the pressure tank, the internal cooling water pump group, the circulating cooling water pump group, and the cooling tower. The cooling tower is connected to the circulating cooling water pump group.

[0006] Furthermore, the internal cooling water pipeline is equipped with a pressure sensor II and a pneumatic regulating valve assembly, and the pressure sensor II is electrically connected to the pneumatic regulating valve assembly.

[0007] Furthermore, a pressure sensor I is connected to the top of the accumulator tank, and a piston air compressor and an venting pipeline are connected to the top side wall of the accumulator tank. A pneumatic switch valve I is installed on the venting pipeline, and the pressure sensor I is electrically connected to the piston air compressor and the pneumatic switch valve I respectively.

[0008] Furthermore, a temperature sensor I is installed on the pipeline connecting the plate heat exchanger and the cooling tower, and the temperature sensor I is electrically connected to the circulating cooling water pump group.

[0009] Furthermore, a variable frequency fan is installed at the top of the cooling tower, and a temperature sensor II is installed on the pipeline connecting the circulating cooling water pump group and the cooling tower. The temperature sensor II is electrically connected to the variable frequency fan.

[0010] Furthermore, the accumulator tank is equipped with a diaphragm that separates the gas phase and the liquid phase, and the diaphragm is made of rubber or silicone.

[0011] The beneficial effects of this invention are as follows: By adding a pressure accumulator and a plate heat exchanger, the two parameters of "pressure" and "heat" are physically separated, thereby significantly reducing the pressure difference between the inlet and outlet of the internal cooling water pump and its energy consumption, thus greatly reducing the overall energy consumption of the system. The pressure accumulator also enables pressure control and system stabilization, reducing pressure fluctuations. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of a traditional internal cooling water system.

[0013] Figure 2 This is a schematic diagram of the structure of this utility model.

[0014] In the diagram: 1. Accumulator; 2. Pneumatic regulating valve assembly; 3. Pneumatic switch valve I; 4. High-pressure water supply pump assembly; 5. Piston air compressor; 6. Cooling tower; 7. Variable frequency fan; 8. Pneumatic switch valve II; 9. Circulating cooling water pump assembly; 10. Plate heat exchanger; 11. Internal cooling water pump assembly; 12. Pressure sensor I; 13. Pressure sensor II; 14. Level transmitter; 15. Diaphragm; 16. Temperature sensor I; 17. Temperature sensor II. Detailed Implementation

[0015] Example:

[0016] like Figure 2 As shown, an internal cooling water system for tire vulcanization includes a cooling tower 6, a circulating cooling water pump group 9, a pressure tank 1, a plate heat exchanger 10, and an internal cooling water pump group 11. The side wall of the pressure tank 1 is connected to an internal cooling water pipeline, a high-pressure water supply pump group 4, and a drainage pipeline. A pressure sensor II 13 and a pneumatic regulating valve group 2 are installed on the internal cooling water pipeline. The pressure sensor II 13 is electrically connected to the pneumatic regulating valve group 2. A level transmitter 14 is installed on the outer wall of the pressure tank 1. A pneumatic switch valve II 8 is installed on the drainage pipeline. The level transmitter 14 is electrically connected to the high-pressure water supply pump group 4 and the pneumatic switch valve II 8. The plate heat exchanger 10 is connected to the pressure tank 1, the internal cooling water pump group 11, the circulating cooling water pump group 9, and the cooling tower 6. The cooling tower 6 is connected to the circulating cooling water pump group 9.

[0017] The pressure accumulator 1 is equipped with a pressure sensor I12 at its top. A piston air compressor 5 and a venting pipeline are connected to the top side wall of the pressure accumulator 1. A pneumatic switch valve I3 is installed on the venting pipeline. The pressure sensor I12 is electrically connected to both the piston air compressor 5 and the pneumatic switch valve I3. The pressure accumulator 1 is equipped with a diaphragm 15 that separates the gas phase and the liquid phase inside.

[0018] Temperature sensor I16 is installed on the pipeline connecting the plate heat exchanger 10 and the cooling tower 6. Temperature sensor I16 is electrically connected to the circulating cooling water pump group 9. A variable frequency fan 7 is installed at the top of the cooling tower 6. Temperature sensor II17 is installed on the pipeline connecting the circulating cooling water pump group 9 and the cooling tower 6. Temperature sensor II17 is electrically connected to the variable frequency fan 7.

[0019] The internal cooling water is throttled and pressure-stabilized by the pneumatic regulating valve group 2, enters the accumulator tank 1, is then cooled by the plate heat exchanger 10, and is then pressurized and supplied by the internal cooling water pump group 11. The circulating cooling water pump group 9 sends the cooling water in the cooling tower 6 to the plate heat exchanger 10 to cool the internal cooling water on the opposite side, and then enters the cooling tower 6 for cooling circulation. Temperature sensor I 16 controls the circulating cooling water pump group 9 to keep the cooling water volume within the economic range; temperature sensor II 17 controls the variable frequency fan 7 to keep the circulating cooling water temperature within the economic range.

[0020] Level transmitter 14 controls high-pressure water supply pump group 4 and pneumatic switch valve II 8 to jointly maintain the stable water level in accumulator tank 1. Pressure sensor I 12 controls piston air compressor 5 and pneumatic switch valve I 3 to jointly maintain the air-side pressure of accumulator tank 1 at 2.1MPa±0.1MPa; pressure sensor II 13 controls pneumatic regulating valve group 2 to maintain the internal cooling water return pressure at 2.2MPa±0.1MPa. The internal cooling water return water passes through plate heat exchanger 10, is cooled, and then pressurized to 2.5MPa by internal cooling water pump group 11 before being supplied to the production line.

[0021] The embodiments described above are merely preferred solutions of this utility model and are not intended to limit this utility model in any way. Other variations and modifications are possible without departing from the technical solutions described in the claims.

[0022] In the description of this utility model, it should be understood that the terms indicating orientation or positional relationship are based on the orientation or positional relationship shown in the drawings and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

Claims

1. An internal cooling water system for tire vulcanization processes, comprising a cooling tower and a circulating cooling water pump set, characterized in that: It also includes a pressure tank, a plate heat exchanger, and an internal cooling water pump set. The side wall of the pressure tank is connected to an internal cooling water pipeline, a high-pressure water supply pump set, and a drainage pipeline. A level transmitter is installed on the outer wall of the pressure tank. A pneumatic switch valve II is installed on the drainage pipeline. The level transmitter is electrically connected to the high-pressure water supply pump set and the pneumatic switch valve II. The plate heat exchanger is connected to the pressure tank, the internal cooling water pump set, the circulating cooling water pump set, and the cooling tower. The cooling tower is connected to the circulating cooling water pump set.

2. The internal cooling water system for tire vulcanization process according to claim 1, characterized in that: The internal cooling water pipeline is equipped with a pressure sensor II and a pneumatic regulating valve assembly. The pressure sensor II is electrically connected to the pneumatic regulating valve assembly.

3. The internal cooling water system for tire vulcanization process according to claim 1, characterized in that: The pressure sensor I is connected to the top of the accumulator tank, and a piston air compressor and an venting pipeline are connected to the top side wall of the accumulator tank. A pneumatic switch valve I is installed on the venting pipeline. The pressure sensor I is electrically connected to the piston air compressor and the pneumatic switch valve I respectively.

4. The internal cooling water system for tire vulcanization process according to claim 1, characterized in that: Temperature sensor I is installed on the pipeline connecting the plate heat exchanger and the cooling tower. Temperature sensor I is electrically connected to the circulating cooling water pump group.

5. The internal cooling water system for tire vulcanization process according to claim 1, characterized in that: The top of the cooling tower is equipped with a variable frequency fan, and a temperature sensor II is installed on the pipeline connecting the circulating cooling water pump group to the cooling tower. The temperature sensor II is electrically connected to the variable frequency fan.

6. The internal cooling water system for tire vulcanization process according to claim 1, characterized in that: The accumulator tank is equipped with a diaphragm that separates the gas phase and the liquid phase.

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