Multi-loop temperature control equipment

Abstract

This utility model relates to a multi-loop temperature control device, including a water tank and at least two sets of temperature control units. Each set of temperature control units includes a heating cylinder, a media outlet, and a media circuit. The heating cylinder is connected to the media outlet and the media circuit respectively to provide a preset temperature to the process equipment to be temperature-controlled. A booster pump is installed at the outlet of the water tank. The heating cylinder of each set of temperature control units is connected to the drain end of the booster pump through a branch pipe. A solenoid valve is installed on each branch pipe. The solenoid valve is associated with the liquid level switch of the heating cylinder and controls the opening and closing of the solenoid valve according to the liquid level signal of the liquid level switch of the heating cylinder. Multiple sets of temperature control units, each with independent temperature control, share a booster pump and a water tank, providing a stable temperature required by the process to their respective rollers. The temperatures can be different, simplifying the piping, reducing the footprint, and integrating operation.

Description

Technical Field

[0001] This utility model belongs to the field of temperature regulation technology, specifically relating to a multi-loop temperature regulation device. Background Technology

[0002] Tire production lines, diaphragm production lines, and similar production lines use multiple rollers, each typically requiring different temperature controls. The common practice is to equip each roller with one temperature control unit, which includes a water tank and two pumps. However, this system results in multiple temperature control units for multiple rollers, leading to dispersed machines, large floor space requirements, high costs, and inconvenient on-site operation. Utility Model Content

[0003] To address the aforementioned problems in the prior art, this utility model provides a multi-loop temperature control device.

[0004] To achieve the above objectives, the multi-loop temperature control device of this utility model is characterized by comprising a water tank and at least two sets of temperature control units. Each set of temperature control units includes a heating cylinder, a media outlet, and a media circuit. The heating cylinder is connected to the media outlet and the media circuit respectively to provide a preset temperature to the process equipment to be temperature controlled. A booster pump is installed at the outlet of the water tank. The heating cylinder of each set of temperature control units is connected to the drain end of the booster pump through a branch pipe. A solenoid valve is installed on each branch pipe. The solenoid valve is associated with the liquid level switch of the heating cylinder and controls the opening and closing of the solenoid valve according to the liquid level signal of the liquid level switch of the heating cylinder.

[0005] Preferably, the media circuit is equipped with a heat exchanger having a cooling water inlet and a cooling water outlet to regulate the media temperature via cooling water, and the cooling water inlet is equipped with a regulating valve to regulate the cooling water flow rate.

[0006] Preferably, the regulating valve is a proportional valve, and both the inlet and outlet of the regulating valve are provided with three-way backup valves, which are connected to each other.

[0007] Preferably, a cooler is provided inside the water tank to cool the temperature of the media water inside the tank.

[0008] Preferably, all media outlets are equipped with media pumps and temperature probes.

[0009] Preferably, both the media outlet and the media loop are equipped with a three-way reserved valve.

[0010] Preferably, a pressure sensor is installed at the drain end of the booster pump.

[0011] Preferably, a bypass pipeline is provided between the water outlet of the water tank and the drain end of the booster pump.

[0012] The beneficial effects of this multi-loop temperature control device are as follows:

[0013] Multiple temperature control units, each with independent temperature control, share a single booster pump and a water tank to provide their respective rollers with the stable temperature required for the process. The temperatures can be different, simplifying piping, reducing floor space, and enabling integrated operation. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of the multi-loop temperature control device of this utility model. Detailed Implementation

[0015] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0016] like Figure 1 The image shows an embodiment of the multi-loop temperature control device of this utility model. The device includes a water tank 1 and four temperature control units. The water tank 1 stores media water, which is treated softened water. The piping involving the media water can use stainless steel fittings to reduce rusting and extend the service life of the temperature control units and rollers. In this embodiment, the four temperature control units provide temperature control functions to four rollers respectively. Other numbers of temperature control units can be provided as needed.

[0017] like Figure 1 As shown, each temperature control unit includes a heating cylinder 4, a media outlet 6, and a media circuit 7. The heating cylinder 4 is connected to both the media outlet 6 and the media circuit 7. The media outlet 6 and the media circuit 7 are connected to the roller interface to provide a preset temperature to the process equipment to be temperature-controlled, such as a roller. A booster pump 3 is installed at the outlet of the water tank 1. The heating cylinder 4 of each temperature control unit is connected to the drain end of the booster pump 3 via a branch pipe. Each branch pipe is equipped with a solenoid valve 5, which is associated with the liquid level switch of the heating cylinder 4. The solenoid valve 5 is controlled to open and close according to the liquid level signal of the liquid level switch of the heating cylinder 4. The solenoid valve 5 is open not only during replenishment but also during venting.

[0018] Based on the structure of this utility model, four temperature control devices are integrated. Media water is added to the water tank 1 through the water inlet, and then pumped by the booster pump 3 to the heating cylinders 4 of the four temperature control units. When the float switch in the heating cylinder 4 detects the water level, the solenoid valve 5 closes, completing the water replenishment process. The heating tubes in the heating cylinder 4 then begin to operate, raising the temperature to the set temperature. The water is then pumped by the media pump 8 to their respective rollers and returned to the heating cylinder 4 via the media circuit. This simplifies the piping, reduces the floor space, and integrates operation. The number of units can be increased or decreased as needed, based on factors such as the water tank volume and booster pump capacity.

[0019] A pressure sensor is installed at the drain end of the booster pump 3. A bypass pipeline is provided between the outlet of the water tank 1 and the drain end of the booster pump 3.

[0020] In each temperature control unit, a media outlet 6 is equipped with a media pump 8 and a temperature probe. Both the media outlet 6 and the media circuit 7 are equipped with a three-way pre-installed valve 9. If the temperature control unit does not correspond to the roller, the pipeline can be switched through the three-way pre-installed valve. For other equipment, the original pipeline does not need to be removed, making the operation simple.

[0021] In each temperature control unit, the media circuit 7 is equipped with a heat exchanger 10, which has a cooling water inlet 13 and a cooling water outlet 12 to regulate the media temperature via cooling water. A regulating valve 11 is installed at the cooling water inlet to adjust the cooling water flow rate. When the temperature control unit is controlling the temperature, the regulating valve can be opened proportionally according to the temperature change, allowing external cooling water to enter and exchange heat with the media water through the heat exchanger to reach the set temperature.

[0022] The regulating valve 11 can be a proportional valve. Both the inlet and outlet of the regulating valve 11 are equipped with three-way backup valves, which are connected to each other. The opening degree of the proportional valve and the flow rate of cooling water can be controlled according to the temperature changes of each temperature control unit, resulting in smaller temperature fluctuations and more precise temperature control. The three-way backup valves installed at the inlet and outlet of the proportional valve can serve as backups. For example, if the proportional valve fails, to avoid affecting the operation of the temperature control unit, the main circuit can be closed and the cooling water bypassed via the three-way backup valve without shutting down the system, allowing the temperature control unit to continue operating.

[0023] A cooler 2 is installed inside the water tank 1 to cool the temperature of the media water inside the water tank 1. The cooling pipes of the cooler 2 can be connected to the cooling water inlet and cooling water outlet of one of the temperature control units to exchange heat with the media water in the water tank and complete indirect cooling.

[0024] For example, during the heating process, the temperature control unit will periodically vent air, and the solenoid valve in front of the heating cylinder inlet will open, which may discharge some hot water into the water tank. As time goes on, the water temperature inside the water tank will rise. The water tank has a built-in cooler that uses external cooling water to maintain the low temperature of the water inside the tank.

[0025] Therefore, in this invention, the four temperature control units each control their own temperature independently, sharing a single booster pump and a water tank to provide the stable temperature required for their respective rollers. Each temperature control unit has a cooling water path and a media path, and these two water paths are independent, do not interfere with each other, and are not affected by their respective water quality. Furthermore, operators only need to check and control multiple temperature control units from one location, making it convenient and time-saving.

[0026] The beneficial effects of this multi-loop temperature control device are as follows:

[0027] Multiple temperature control units, each with independent temperature control, share a single booster pump and a water tank to provide their respective rollers with the stable temperature required for the process. The temperatures can be different, simplifying piping, reducing floor space, and enabling integrated operation.

[0028] In this specification, the present invention has been described with reference to specific embodiments thereof. However, it will be apparent that various modifications and variations can be made without departing from the spirit and scope of the present invention. Therefore, the specification and drawings should be considered illustrative rather than restrictive.

Claims

1. A multi-circuit temperature control apparatus, characterized by, The device includes a water tank and at least two sets of temperature control units. Each set of temperature control units includes a heating cylinder, a media outlet, and a media circuit. The heating cylinder is connected to the media outlet and the media circuit to provide a preset temperature to the process equipment to be temperature-controlled. A booster pump is installed at the outlet of the water tank. The heating cylinder of each set of temperature control units is connected to the drain end of the booster pump through a branch pipe. A solenoid valve is installed on each branch pipe. The solenoid valve is associated with the liquid level switch of the heating cylinder and controls the opening and closing of the solenoid valve according to the liquid level signal of the liquid level switch of the heating cylinder.

2. The multi-loop temperature control device according to claim 1, characterized in that, The media circuit is equipped with a heat exchanger, which has a cooling water inlet and a cooling water outlet to regulate the media temperature through cooling water. The cooling water inlet is equipped with a regulating valve to regulate the cooling water flow rate.

3. The multi-circuit thermoregulatory device according to claim 2, characterized in that, The regulating valve is a proportional valve, and both the inlet and outlet of the regulating valve are equipped with three-way spare valves, which are connected to each other.

4. The multi-circuit thermoregulatory device according to claim 1, characterized in that, A cooler is installed inside the water tank to cool the temperature of the media water inside the tank.

5. The multi-circuit thermoregulatory device according to claim 1, characterized in that, All media outlets are equipped with media pumps and temperature probes.

6. The multi-circuit thermoregulatory device according to claim 1, characterized in that, Both the media outlet and the media loop are equipped with three-way reserved valves.

7. The multi-circuit thermoregulatory device according to claim 1, characterized in that, A pressure sensor is installed at the drain end of the booster pump.

8. The multi-loop temperature control device according to claim 1, characterized in that, A bypass pipeline is provided between the water outlet of the water tank and the drain end of the booster pump.

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