Cold and hot oil conversion variable temperature control device

Abstract

The utility model discloses a cold and hot oil conversion variable temperature control device, which comprises a cold oil tank, a hot oil tank, a cold oil pump, a hot oil pump, a heat exchanger, a heater, a cold oil pipe head, a hot oil pipe head and a variable temperature oil outlet pipe head, the oil outlet end of the heat exchanger is further communicated with the oil return end of the cold oil tank through a pipeline, the hot oil tank, the hot oil pump, the heater and the hot oil pipe head are sequentially communicated, and the oil outlet end of the heater is further communicated with the oil return end of the hot oil tank through a pipeline. The oil outlet end of the heat exchanger and the oil outlet end of the heater are communicated with the variable-temperature oil outlet pipe head through pipelines. Compared with the prior art, the utility model not only can provide cold oil and hot oil, but also has a cold and hot oil mixing variable temperature conversion function, and better meets the application requirements of various temperature control occasions such as a mold temperature controller.

Description

Technical Field

[0001] The utility model relates to a hot and cold oil temperature control device, in particular to a hot and cold oil conversion temperature control device. Background Art

[0002] Currently, in the composite molding, chemical, and pharmaceutical industries, equipment such as molds and reactors often require rapid heating and cooling to meet production process requirements and produce qualified products. Conventional mold temperature controllers, however, require a certain reaction time during both the heating and cooling phases to heat or cool the medium to the target temperature. Because these applications require frequent heating and cooling, conventional mold temperature controllers require repeated heating and cooling cycles, resulting in significant heat loss and low energy efficiency. Furthermore, conventional mold temperature controllers require manual temperature adjustment and lack intelligent adjustments based on operating conditions or needs.

[0003] Based on the above factors, ordinary mold temperature controllers cannot well meet the application requirements of temperature control equipment in these fields. Therefore, there is an urgent need in the existing technology for a variable temperature control device that can meet the use requirements of these fields. Utility Model Content

[0004] The technical problem to be solved by the utility model is to provide a control device which can provide temperature conversion of cold oil, hot oil and mixed cold and hot oil, in view of the deficiencies of the existing technology.

[0005] In order to solve the above technical problems, the present utility model adopts the following technical solutions.

[0006] A hot and cold oil conversion temperature control device includes a cold oil tank, a hot oil tank, a cold oil pump, a hot oil pump, a heat exchanger, a heater, a cold oil pipe head, a hot oil pipe head and a variable temperature oil outlet pipe head. The cold oil tank, the cold oil pump, the heat exchanger and the cold oil pipe head are connected in sequence through pipelines, and the oil outlet end of the heat exchanger is also connected to the oil return end of the cold oil tank through a pipeline. The hot oil tank, the hot oil pump, the heater and the hot oil pipe head are connected in sequence, and the oil outlet end of the heater is also connected to the oil return end of the hot oil tank through a pipeline. The oil outlet end of the heat exchanger and the oil outlet end of the heater are both connected to the variable temperature oil outlet pipe head through pipelines.

[0007] Preferably, a rack is included, and the cold oil tank, hot oil tank, cold oil pump, hot oil pump, heat exchanger and heater are all arranged in the rack.

[0008] Preferably, the cold oil tank and the hot oil tank are arranged side by side on the left and right, and the cold oil pump and the hot oil pump are arranged side by side on the left and right.

[0009] Preferably, an expansion oil tank is fixed on the frame, and the oil outlet end of the heater is connected to the expansion oil tank.

[0010] Preferably, the heat exchanger includes a heat exchanger cavity and heat exchange fins arranged outside the heat exchanger cavity.

[0011] Preferably, a control cabinet is fixed to the outside of the rack, and the cold oil pump and the hot oil pump are both electrically connected to the control cabinet.

[0012] Preferably, the hot oil pipe head and the variable temperature oil outlet pipe head are both provided with manual valves.

[0013] The oil pump of described hot oil tank is connected with the oil cooler of described hot oil tank by pipeline, and the oil cooler of described hot oil tank is connected with the oil cooler of described hot oil tank by pipeline. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 The three-dimensional hot and cold oil conversion temperature control device of the utility model Figure 1 ;

[0015] Figure 2 The three-dimensional hot and cold oil conversion temperature control device of the utility model Figure 2 ;

[0016] Figure 3 The internal structure of the hot and cold oil conversion temperature control device of this utility model Figure 1 ;

[0017] Figure 4 The internal structure of the hot and cold oil conversion temperature control device of this utility model Figure 2 ;

[0018] Figure 5 The internal structure of the hot and cold oil conversion temperature control device of this utility model Figure 3 . DETAILED DESCRIPTION

[0019] The present invention will be described in more detail below with reference to the accompanying drawings and embodiments.

[0020] The utility model discloses a hot and cold oil conversion temperature control device, combined with Figures 3 to 5 As shown, it includes a cold oil tank 1, a hot oil tank 2, a cold oil pump 3, a hot oil pump 4, a heat exchanger 5, a heater 6, a cold oil pipe head 7, a hot oil pipe head 8 and a variable temperature oil outlet pipe head 9. The cold oil tank 1, the cold oil pump 3, the heat exchanger 5 and the cold oil pipe head 7 are connected in sequence through pipelines, and the oil outlet end of the heat exchanger 5 is also connected to the return oil end of the cold oil tank 1 through a pipeline. The hot oil tank 2, the hot oil pump 4, the heater 6 and the hot oil pipe head 8 are connected in sequence, and the oil outlet end of the heater 6 is also connected to the return oil end of the hot oil tank 2 through a pipeline. The oil outlet end of the heat exchanger 5 and the oil outlet end of the heater 6 are both connected to the variable temperature oil outlet pipe head 9 through pipelines.

[0021] In the above structure, the cold oil tank 1, the cold oil pump 3, the heat exchanger 5 and the cold oil pipe head 7 are connected in sequence through pipelines. When the cold oil pump 3 is running, the cold oil supply can be realized by simply opening the cold oil pipe head 7. At the same time, the cold oil discharged by the heat exchanger 5 is also returned to the cold oil tank 1 through the pipeline, thereby realizing cold oil circulation heat exchange. Similarly, the hot oil tank 2, the hot oil pump 4, the heater 6 and the hot oil pipe head 8 are connected in sequence. When the hot oil pump 4 is running, the cold oil supply can be realized by simply opening the cold oil pipe head 7. At the same time, the cold oil discharged by the heat exchanger 5 is also returned to the cold oil tank 1 through the pipeline, thereby realizing cold oil circulation heat exchange. Similarly, the hot oil tank 2, the hot oil pump 4, the heater 6 and the hot oil pipe head 8 are connected in sequence. Hot oil supply can be achieved by opening the hot oil pipe head 8. At the same time, the hot oil discharged from the heater 6 is also returned to the hot oil tank 2 through the pipeline, so as to realize the circulation and heating of the hot oil. When temperature adjustment is required, the temperature-variable oil outlet pipe head 9 can be opened, and the cold and hot oils are mixed and transported to the subsequent pipelines through the temperature-variable oil outlet pipe head 9. Compared with the existing technology, the utility model can not only provide cold oil and hot oil, but also has the function of cold and hot oil mixing and temperature conversion, which better meets the application requirements of various temperature control occasions such as mold temperature controllers.

[0022] See Figure 1 and Figure 2 The present embodiment includes a frame 10, wherein the cold oil tank 1, the hot oil tank 2, the cold oil pump 3, the hot oil pump 4, the heat exchanger 5 and the heater 6 are all arranged in the frame 10. In order to facilitate movement and pushing, the bottom of the frame 10 of the present embodiment is further provided with universal casters 13.

[0023] As a preferred structural layout, the cold oil tank 1 and the hot oil tank 2 are arranged side by side, and the cold oil pump 3 and the hot oil pump 4 are arranged side by side. In the above structure, the cold oil supply mechanism and the hot oil supply mechanism are arranged in a bilaterally symmetrical manner, which facilitates maintenance personnel to distinguish and carry out maintenance work.

[0024] In this embodiment, an expansion oil tank 11 is fixed on the frame 10, and the oil outlet of the heater 6 is connected to the expansion oil tank 11. The expansion oil tank 11 mainly plays the role of draining and exhausting water.

[0025] In order to improve the cooling and heat exchange effect of the cold oil, in this embodiment, the heat exchanger 5 includes a heat exchanger cavity and heat exchange fins 50 provided on the outside of the heat exchanger cavity.

[0026] Furthermore, a control cabinet 12 is fixed to the outside of the frame 10. The cold oil pump 3 and the hot oil pump 4 are both electrically connected to the control cabinet 12. In practical applications, the control cabinet 12 can control the mixing ratio of cold oil and hot oil by controlling the operating status of the cold oil pump 3 and the hot oil pump 4. In this embodiment, the hot oil-cold oil conversion mold temperature controller is divided into two heating systems: a hot oil heating system and a cold oil circulation system. A cold oil tank and a hot oil tank are installed within the entire machine. The hot oil tank is connected to a hot oil inlet pipe and a hot oil return pipe. The hot oil inlet pipe is connected to the hot oil circulation pump, a heating pipe, and a normally closed solenoid valve. The cold oil tank is connected to a cold oil inlet pipe and a cold oil return pipe. The cold oil inlet pipe is connected to the cold oil circulation pump and a cooler, and is connected to the main oil inlet pipe via a normally closed solenoid valve. The hot oil outlet pipe and the cold oil outlet pipe are connected to the main pipe. A proportional valve controls the ratio of hot oil to cold oil, thereby adjusting the oil outlet temperature.

[0027] For example: in the early stage of temperature rise, the cold oil circulation system can be in the self-circulation state, and the hot oil heating system is in the heating working state;

[0028] After the hot oil heating system heats to the target temperature, the hot oil and cold oil conversion mold temperature controller supplies heat to the heated equipment, and the cold oil circulation system is in self-circulation, and the heated equipment is heated to the set temperature;

[0029] When the heated equipment needs to be cooled quickly, the outlet solenoid valve of the cold oil circulation system opens and starts to pump out low-temperature thermal oil. The ratio of hot oil to cold oil is controlled by the proportional valve to quickly reduce the temperature to the target temperature.

[0030] When the heated equipment needs to be heated up quickly again, it is only necessary to close the solenoid valve at the outlet of the cold oil circulation system to restore the cold oil circulation system to the self-circulation state. The hot oil heating system will provide heat alone, and the heated equipment will be quickly heated to the target temperature.

[0031] To facilitate manual control, manual valves are provided on both the hot oil outlet pipe head 8 and the variable temperature oil outlet pipe head 9. In addition, electronically controlled valves may be provided on the oil outlet pipes of the heat exchanger 5 and the heater 6 to prevent backflow and mismixing of the cold and hot oil lines.

[0032] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent replacements or improvements made within the technical scope of the present invention should be included in the scope of protection of the present invention.

Claims

1. A hot and cold oil conversion temperature control device, characterized in that: The invention comprises a cold oil tank (1), a hot oil tank (2), a cold oil pump (3), a hot oil pump (4), a heat exchanger (5), a heater (6), a cold oil pipe head (7), a hot oil pipe head (8) and a temperature-variable oil outlet pipe head (9). The cold oil tank (1), the cold oil pump (3), the heat exchanger (5) and the cold oil pipe head (7) are sequentially connected through pipelines. The oil outlet end of the heat exchanger (5) is also connected to the oil return end of the cold oil tank (1) through a pipeline. The hot oil tank (2), the hot oil pump (4), the heater (6) and the hot oil pipe head (8) are sequentially connected. The oil outlet end of the heater (6) is also connected to the oil return end of the hot oil tank (2) through a pipeline. The oil outlet end of the heat exchanger (5) and the oil outlet end of the heater (6) are both connected to the temperature-variable oil outlet pipe head (9) through pipelines.

2. The hot and cold oil conversion temperature control device according to claim 1, characterized in that: The invention comprises a frame (10), wherein the cold oil tank (1), the hot oil tank (2), the cold oil pump (3), the hot oil pump (4), the heat exchanger (5) and the heater (6) are all arranged in the frame (10).

3. The hot and cold oil conversion temperature control device according to claim 2, characterized in that: The cold oil tank (1) and the hot oil tank (2) are arranged side by side on the left and right, and the cold oil pump (3) and the hot oil pump (4) are arranged side by side on the left and right.

4. The hot and cold oil conversion temperature control device according to claim 2, characterized in that: An expansion oil tank (11) is fixed on the frame (10), and the oil outlet end of the heater (6) is connected to the expansion oil tank (11).

5. The hot and cold oil conversion temperature control device according to claim 1, characterized in that: The heat exchanger (5) comprises a heat exchanger cavity and heat exchange fins (50) arranged outside the heat exchanger cavity.

6. The hot and cold oil conversion temperature control device according to claim 2, characterized in that: A control cabinet (12) is fixed to the outside of the frame (10), and the cold oil pump (3) and the hot oil pump (4) are both electrically connected to the control cabinet (12).

7. The hot and cold oil conversion temperature control device according to claim 1, characterized in that: The hot oil pipe head (8) and the variable temperature oil outlet pipe head (9) are both provided with manual valves.

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