A sulfurized superheated water energy supply system

Abstract

This invention discloses an energy-saving superheated water supply system for tire vulcanization, comprising a deaerator, a circulating water pump, a vulcanizing bladder, a pressure water tank, a pressure water pump, an atmospheric pressure water tank, and an atmospheric pressure water pump. Superheated water circulates within the system to supply the vulcanizing bladder. The system also includes a circulating water regulating valve, a return water regulating valve, and a filling water regulating valve. The circulating water regulating valve regulates the circulating water pressure, and the return water regulating valve regulates the return water pressure. Filling water specifically for filling the vulcanizing bladder is drawn from the return water regulating valve. A pressure reducing reducer is installed on the filling water pipeline, and a filling water regulating valve is installed on its bypass to regulate the filling water pressure. Simultaneously, superheated water discharged during pressure regulation by the circulating water regulating valve on the circulating water pressure bypass is also supplied to the filling water. This method of supplying filling water meets the requirements of the tire vulcanization process, saves investment in high-power hot water pumps, reduces operating energy consumption, and achieves energy-saving and environmentally friendly superheated water supply for vulcanization.

Description

Technical Field

[0001] This invention relates to the field of tire vulcanization technology, specifically to a vulcanization superheated energy-saving water supply system. Background Technology

[0002] In traditional steam-heated vulcanization processes, the filling water and circulating water are supplied by two separate pump systems, or some companies directly use circulating water to fill the vulcanizing machine bladder. Both of these solutions have certain drawbacks. The former requires investment in a high-power hot water pump for filling water and consumes a lot of electricity, resulting in energy waste. While the latter saves on investment, the circulating water needs to fill the vulcanizing machine bladder, and water has a very low compressibility. When multiple vulcanizing machines in a vulcanizing machine group are filled with water at the same time, the pressure fluctuation of the circulating water will exceed the standard, failing to meet the vulcanization process's requirement for a circulating water pressure fluctuation range of ±0.1MPa, thus affecting the quality of the vulcanized tires.

[0003] Taking a project producing 1.2 million sets of all-steel radial tires as an example, the filling water pump requires at least two 90KW hot water pumps. A configuration of one power frequency pump and one variable frequency pump would cost approximately 300,000 yuan. Additionally, it requires at least 740,000 kWh of electricity annually. Meanwhile, the high-pressure return water (approximately 2.3 MPa) is directly discharged into the deaerator (approximately 0.6 MPa), resulting in a pressure release of approximately 1.7 MPa, signifying energy conversion, without directly utilizing the residual pressure of the return water for the process. The vulcanization process is typically a major energy consumer for tire companies; exploring the potential of superheated water supply can help companies reduce waste and lower investment costs. Summary of the Invention

[0004] The purpose of this invention is to solve the problems of insufficient system pressure stability or waste of energy and investment in various water supply schemes during the vulcanization process of tire steam superheating, and to provide an energy-saving water supply system for vulcanization superheating.

[0005] The technical solution of the present invention is implemented in the following manner:

[0006] A superheated water supply system for vulcanization includes a deaerator, a circulating water pump, a return water regulating valve, a filling water regulating valve, a circulating water regulating valve, a vulcanizing chamber bladder, a pressure water tank, a pressure water pump, an atmospheric pressure water tank, and an atmospheric pressure water pump. Both the filling water and the circulating water are superheated water, which circulates within the system and is used by the vulcanizing chamber bladder. The system is characterized in that the circulating water regulating valve regulates the circulating water pressure, the return water regulating valve regulates the return water pressure, and the filling water specifically for filling the vulcanizing chamber bladder is drawn from the return water regulating valve. A pressure reducing valve is installed on the filling water pipeline, and a filling water regulating valve is installed on its bypass. The outlet of the filling water pipeline is connected to the deaerator, and the filling water regulating valve regulates the filling water pressure. Simultaneously, the superheated water discharged during pressure regulation by the circulating water regulating valve on the circulating water pressure bypass is also supplied to the filling water.

[0007] In this invention, the lower-pressure fill water is supplied using the residual pressure of the return water, achieving tiered use of superheated water pressure; moreover, the pressure-regulating drainage after the circulating water regulating valve has a higher residual pressure than the return water and is also supplied to the fill water, thus better saving energy, as detailed below:

[0008] The temperature inside the deaerator heater is approximately 163℃, and the pressure is approximately 0.6MPa. The circulating water pump runs continuously, supplying the superheated water in the deaerator heater to the vulcanizing bladder via the circulating water pipeline. After the tire is placed into the mold and the mold is closed and shaped, saturated steam (approximately 1.6MPa) is injected into the vulcanizing bladder, followed by filler water (approximately 1.9MPa). Then, the circulating water (approximately 2.5MPa) is turned on and circulated within the vulcanizing bladder according to the process steps, or paused, to provide the internal temperature and pressure required for tire vulcanization. After vulcanization, the superheated water in the vulcanizing bladder is first discharged into the pressure water tank, and the superheated water below 0.5MPa is discharged into the atmospheric pressure water tank. The atmospheric pressure water pump sends the hot water to the pressure water tank, and the pressure water pump sends the superheated water back to the deaerator heater for deoxygenation and heating, and then supplies it to the vulcanizing bladder again via the circulating water pump, forming a closed loop.

[0009] Preferably, a pressure transmitter is installed at the outlet of the circulating water pump, and a circulating water regulating valve is installed at the outlet bypass to control the circulating water pressure.

[0010] Preferably, the filling water is taken from the return water regulating valve on the return water pipeline and supplied to the vulcanizing machine capsule through the filling water pipeline. A pressure reducing transformer and a pressure transmitter are installed on the filling water pipeline, and a filling water regulating valve is installed on its bypass to control the filling water pressure. The outlet of the regulating valve is connected to the deaerator heater.

[0011] Preferably, the superheated water (>2.5MPa) discharged from the pressure regulating outlet of the circulating water regulating valve is also supplied to the filling water, and the outlet bypass is connected to the deaerator heater.

[0012] Preferably, the return water pipeline is equipped with a pressure transmitter and a return water regulating valve to regulate the return water pressure. The return water regulating valve is connected to a filling water pipeline and a bypass is connected to the deaerator. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the sulfurized superheated water energy-saving water supply system of the present invention.

[0014] The symbols in the diagram are marked as follows:

[0015] 1. Deaerator; 11. Safety valve; 12. Circulating water pump; 13. Gate valve; 14. Circulating water pipeline; 15. Return water pipeline; 16. Filling water pipeline;

[0016] 2. Return water regulating valve; 21. Gate valve; 22. Pressure transmitter;

[0017] 3. Filling water valve; 31. Pressure reducing reducer;

[0018] 4. Filling water regulating valve; 41. Pressure transmitter;

[0019] 5. Gate valve;

[0020] 6. Vulcanizing machine capsules;

[0021] 7. Circulating water regulating valve; 71. Gate valve; 72. Pressure transmitter;

[0022] 8. Pressure tank; 81. Safety valve; 82. Pressure pump;

[0023] 9. Atmospheric pressure water tank; 91. Atmospheric pressure water pump;

[0024] The arrow "→" indicates the direction of medium flow; the connecting lines between various devices and valves are the system pipelines. Detailed Implementation

[0025] The following is in conjunction with the embodiments and appendices Figure 1 The present invention will be described in detail below:

[0026] An embodiment of a superheated water supply system for sulfidation includes an oxygenation heater 1, a circulating water pump 12, a return water regulating valve 2, a filling water regulating valve 4, a circulating water regulating valve 7, a sulfidation chamber 6, a pressure water tank 8, a pressure water pump 82, an atmospheric pressure water tank 9, and an atmospheric pressure water pump 91. The components are connected by system pipelines and valves. The filling water and circulating water are both superheated water.

[0027] Superheated water flows out from the deaerator heater 1, is pressurized by the circulating water pump 12, and then the pressure is regulated. The pressure-regulated water is drained into the filling water. The regulated circulating water enters the vulcanizing chamber 6 from the circulating water pipeline 14 according to process requirements. The superheated water in the vulcanizing chamber 6 flows in different directions depending on the vulcanization stage. During the circulating water circulation stage, the superheated water is divided into two parts after passing through the return water pipeline 15, the return water regulating valve 2, the gate valve 3, and the pressure reducing reducer 31. One part of the return water becomes filling water and is supplied to other vulcanizing chamber 6s in the vulcanizing machine group. Then, it returns to the return water pipeline 15 together with the circulating water. Most of the return water returns to the deaerator heater 1 through the filling water regulating valve 4. During the circulation pause stage, the superheated water in the vulcanizing chamber 6 does not circulate. After vulcanization is completed, the superheated water in the vulcanizing chamber 6 is first discharged into the pressure water tank 8, and the superheated water with a pressure lower than 0.5 MPa is discharged into the atmospheric pressure water tank 9. The atmospheric pressure water pump 91 sends hot water to the pressure water tank 8, and the pressure water pump 82 sends the superheated water back to the deoxygenator heater for deoxygenation and heating, and then pressurizes it through the circulating water pump before supplying it to the vulcanizing machine capsule, forming a complete cycle.

[0028] A pressure transmitter 72 is installed on the circulating water pipeline 14 at the outlet of the circulating water pump 12, and a circulating water regulating valve 7 is installed on the outlet bypass to regulate the circulating water pressure. The superheated water (>2.5MPa) discharged after the circulating water regulating valve 7 is regulated is divided into two lines: one line is connected to the filling water pipeline, and the other line is connected to the deaerator 1.

[0029] A pressure transmitter 22 and a return water regulating valve 2 are installed on the return water pipeline 15 to regulate the return water pressure. The return water is supplied to the filling water after passing through the return water regulating valve 2, and is bypassed to the deaerator heater 1.

[0030] Filling water is taken from the return water regulating valve 2. A pressure reducing reducer 31 and a pressure transmitter 41 are installed on the filling water pipeline 16. The outlet of the filling water regulating valve 4 installed on its bypass is connected to the deaerator heater. The filling water regulating valve 4 regulates the filling water pressure.

[0031] During system operation, the valve opening and closing status is as follows: Gate valve 21 is closed, filling water valve 3 is open, gate valve 5 is open, gate valve 71 is closed, and gate valve 13 should be opened to a certain degree during the initial stage of system operation, and then opened less or closed as needed after the vulcanizing unit group is running normally. The set pressure of safety valve 11 is 0.63MPa, and the set pressure of safety valve 81 is 0.53MPa.

[0032] During system operation, the pressure control principle is as follows: Pressure transmitter 72 detects the circulating water pressure. When the pressure exceeds the set upper limit, the opening of circulating water regulating valve 7 increases, and the pressure decreases. When the pressure falls below the set lower limit, the opening of circulating water regulating valve 7 decreases, and the pressure increases, thus allowing the circulating water pressure to fluctuate within a predetermined range. Return water regulating valve 2 controls the return water pressure. When the value detected by pressure transmitter 22 exceeds the upper or lower limit setting, the opening of return water regulating valve 2 increases or decreases accordingly to control the return water pressure fluctuation within a predetermined range. Similarly, pressure transmitter 41 detects the filling water pressure, and filling water regulating valve 4 is controlled by the filling water pressure to achieve filling water pressure fluctuation within a predetermined range.

[0033] During system operation, the internal temperature of its deaerator 1 is approximately 163℃, and the pressure is approximately 0.6MPa. Its circulating water pressure is 2.5±0.1MPa, return water pressure is 2.3±0.1MPa, and filling water pressure is 1.9±0.1MPa. After the tire is placed into the mold and molded, saturated steam at 1.6±0.1MPa is injected into the vulcanizing bladder 6, followed by filling water. Then, the circulating water is turned on and circulated within the vulcanizing bladder 6 according to the process steps, or paused, to provide the internal temperature and pressure required for tire vulcanization.

[0034] Using this vulcanized superheated water supply system, all indicators of vulcanized tires meet quality requirements.

[0035] By adopting this vulcanized superheated water energy-saving water supply system, a project with 1.2 million sets of all-steel radial tires can reduce the investment in filling water hot water pumps by about 300,000 yuan, reduce the equipment footprint, and save at least 740,000 kilowatt-hours of electricity per year.

[0036] The above description is merely a specific embodiment used to clearly illustrate the present invention and should not be construed as limiting the scope of the present invention. Any obvious variations or modifications derived from the technical solutions of the present invention are still within the protection scope of the present invention.

Claims

1. A superheated water supply system for vulcanization, comprising a deaerator, a circulating water pump, a vulcanizing chamber bladder, a pressure water tank, a pressure water pump, an atmospheric pressure water tank, and an atmospheric pressure water pump, wherein superheated water circulates within the system for use by the vulcanizing chamber bladder; characterized in that: The system also includes a circulating water regulating valve, a return water regulating valve, and a filling water regulating valve. The circulating water regulating valve regulates the circulating water pressure, and the return water regulating valve regulates the return water pressure. Filling water specifically used for filling the vulcanizing machine bladders is drawn from the return water regulating valve. A pressure reducing reducer is installed on the filling water pipeline, and a filling water regulating valve is installed on its bypass. The outlet is connected to the deaerator heater. The filling water regulating valve regulates the filling water pressure. Simultaneously, the superheated water discharged by the circulating water regulating valve on the circulating water pressure regulating bypass is also supplied to the filling water. A pressure transmitter is installed at the outlet of the circulating water pump, and a circulating water regulating valve is installed on the outlet bypass to control the circulating water pressure. The filling water is drawn from the return water regulating valve on the return water pipeline and supplied to the vulcanizing machine bladders through the filling water pipeline. A pressure reducing reducer and a pressure transmitter are installed on the filling water pipeline, and a filling water regulating valve is installed on its bypass to control the filling water pressure. The outlet of this regulating valve is connected to the deaerator heater.

2. The sulfurized superheated water energy-saving water supply system according to claim 1, characterized in that: The superheated water discharged from the pressure regulating outlet of the circulating water regulating valve is also used for filling water, and the outlet bypass is connected to the deaerator heater.

3. The sulfurized superheated water energy-saving water supply system according to claim 1, characterized in that: The return water pipeline is equipped with a pressure transmitter and a return water regulating valve to regulate the return water pressure. The return water regulating valve is connected to the filling water pipeline and bypassed to the deaerator.

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