Multi-supply temperature control system

Abstract

The utility model discloses a multi-supply temperature control system. The multi-supply temperature control system comprises a compressor, a condenser, an evaporator, a first solution tank, a second solution tank, a first circulating pump, a second circulating pump, a throttling device, a first three-way valve, a second three-way valve, a valve and the like. Cold water and hot water required by follow-up refrigeration and heating are formed through refrigeration of the first solution tank and heat conduction of the second solution tank respectively, the mixed water path is arranged between the hot end water path and the cold end water path, water at the cold end is guided out to the hot end, and the hot water and the cold water are mixed to achieve temperature control by controlling the opening and closing time, the opening degree and the like of the valve. The temperature control precision is improved; the multi-combined-supply temperature control system has a multi-combined-supply function, has multiple purposes, can only refrigerate or heat, can also heat and refrigerate at the same time, and meets the requirements of different temperature working conditions and purposes.

Description

Technical Field

[0001] This utility model belongs to the technical field of temperature control equipment, and in particular relates to a multi-generation temperature control system. Background Technology

[0002] Vapor compression chiller units are a type of refrigeration and heating system widely used in industrial and commercial fields. They achieve the effect of cooling or heating by using a circulating liquid refrigerant to absorb and remove heat from the space to be cooled, and then dissipating the heat elsewhere.

[0003] Patent application CN105799100A discloses a combined heating and cooling mold temperature controller, including a first condenser, a second condenser, a compressor, a first evaporator, a second evaporator, a first throttling device, a second throttling device, a hot-side solution tank, a cold-side solution tank, a hot-side circulating pump, and a cold-side circulating pump. It employs a vapor compression heat pump circulation combined with an energy storage solution tank to recover and utilize the heat emitted by the condenser. However, its temperature control accuracy is low, making it difficult to meet the requirements of different temperature operating conditions. Utility Model Content

[0004] This invention aims to address the shortcomings of existing technologies by providing a multi-generation temperature control system with high temperature control accuracy, meeting the needs of different temperature conditions.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0006] A multi-generation temperature control system includes a compressor, a condenser, an evaporator, a first solution tank, a second solution tank, a first circulating pump, a second circulating pump, a throttling device, and also includes a first three-way valve, a second three-way valve, and a valve.

[0007] The condenser is installed in the second solution tank, and the evaporator is installed in the first solution tank;

[0008] The compressor outlet is connected to the condenser inlet via a pipeline, the condenser outlet is connected to the throttling device inlet via a pipeline, the throttling device outlet is connected to the evaporator inlet via a pipeline, and the evaporator outlet is connected to the compressor inlet via a pipeline.

[0009] The outlet of the first solution tank is connected to the inlet of the first circulation pump through a pipeline, the outlet of the first circulation pump is connected to the inlet of the first three-way valve through a pipeline, and the first outlet of the first three-way valve is connected to the inlet of the first solution tank through a pipeline.

[0010] The outlet of the second solution tank is connected to the inlet of the second circulation pump through a pipeline, the outlet of the second circulation pump is connected to the first inlet of the second three-way valve through a pipeline, and the outlet of the second three-way valve is connected to the inlet of the second solution tank through a pipeline.

[0011] The second outlet of the first three-way valve is connected to the inlet of the valve via a pipeline, and the outlet of the valve is connected to the second inlet of the second three-way valve via a pipeline.

[0012] This invention generates cold and hot water for subsequent cooling and heating by cooling in a first solution tank and conducting heat in a second solution tank. A mixing water circuit is set between the hot and cold water circuits to guide water from the cold end to the hot end. By controlling the opening and closing time and opening degree of valves, hot and cold water are mixed to achieve temperature control, improve temperature control accuracy, and meet the needs of different temperature conditions.

[0013] Furthermore, the valve is a proportional flow valve or a solenoid valve.

[0014] Furthermore, a liquid storage tank and a filter are sequentially installed on the pipeline between the outlet of the condenser and the inlet of the throttling device.

[0015] Furthermore, a temperature sensor and a pressure sensor are installed on the pipeline between the first outlet of the first three-way valve and the inlet of the first solution tank.

[0016] Furthermore, a temperature sensor and a pressure sensor are installed on the pipeline between the outlet of the second three-way valve and the inlet of the second solution tank.

[0017] Furthermore, a bypass is provided on the pipeline between the outlet of the second three-way valve and the inlet of the second solution tank 3, and an overflow valve and a water storage tank are sequentially installed on the bypass.

[0018] Furthermore, a third three-way valve and a first shut-off valve are sequentially installed on the pipeline between the outlet of the second circulating pump and the first inlet of the second three-way valve; a fourth three-way valve is installed on the pipeline between the outlet of the second three-way valve and the inlet of the second solution tank.

[0019] The outlet of the second circulating pump is connected to the inlet of the third three-way valve, the first outlet of the third three-way valve is connected to the inlet of the first shut-off valve, and the outlet of the first shut-off valve is connected to the first inlet of the second three-way valve.

[0020] The outlet of the second three-way valve is connected to the first inlet of the fourth three-way valve, and the outlet of the fourth three-way valve is connected to the inlet of the second solution tank;

[0021] The second outlet of the third three-way valve is connected to the inlet of the second shut-off valve through a pipeline, the outlet of the second shut-off valve is connected to the inlet of the heat sink through a pipeline, and the outlet of the heat sink is connected to the second inlet of the fourth three-way valve through a pipeline.

[0022] Cooling equipment is installed outside the heat sink.

[0023] When only in cooling mode, the first shut-off valve is closed and the second shut-off valve is opened. Hot water enters the heat exchange tank, and the excess heat is discharged by the cooling equipment in the form of air cooling. Then it is circulated to the second solution tank. The heat at the hot end of the compressor is dissipated by the cooling equipment to keep the compressor temperature within the operating temperature range, so as to ensure stable cooling efficiency and working power.

[0024] In some implementations of this utility model, at least one refrigeration device is connected in parallel or in series on the pipeline between the first outlet of the first three-way valve and the inlet of the first solution tank.

[0025] In some implementations of this utility model, at least one heating device is connected in parallel or in series on the pipeline between the outlet of the second three-way valve and the inlet of the second solution tank.

[0026] In some implementations of this utility model, at least one heating device is connected in parallel or in series on the pipeline between the outlet of the second three-way valve and the first inlet of the fourth three-way valve.

[0027] In some implementations of this utility model, at least one refrigeration device is connected in parallel or in series on the pipeline between the first outlet of the first three-way valve and the inlet of the first solution tank; and at least one heating device is connected in parallel or in series on the pipeline between the outlet of the second three-way valve and the inlet of the second solution tank.

[0028] In some implementations of this utility model, at least one refrigeration device is connected in parallel or in series on the pipeline between the first outlet of the first three-way valve and the inlet of the first solution tank; and at least one heating device is connected in parallel or in series on the pipeline between the outlet of the second three-way valve and the first inlet of the fourth three-way valve.

[0029] Compared with the prior art, the beneficial effects of this utility model are:

[0030] This invention guides water from the cold end to the hot end, and mixes hot and cold water by controlling the opening and closing time and opening degree of the valve to achieve temperature control, thereby improving the accuracy of temperature control and meeting the needs of different temperature conditions.

[0031] The system of this utility model has a multi-power supply function, and can be used for multiple purposes. It can provide cooling or heating only, or heating and cooling at the same time, to meet different needs. Attached Figure Description

[0032] Figure 1 This is a schematic diagram of the multi-generation temperature control system of this utility model;

[0033] Figure 2 This is a schematic diagram of the multi-generation temperature control system in cooling mode only, according to an embodiment of this utility model.

[0034] Figure 3 This is a schematic diagram of a multi-generation temperature control system in cooling and heating mode according to an embodiment of this utility model.

[0035] In the diagram: 1-Compressor, 2-First solution tank, 3-Second solution tank, 4-Heat dissipation tank, 5-Refrigeration equipment, 6-Heating equipment, 7-First circulating pump, 8-Cooling equipment, 9-Storage tank, 10-Filter, 11-Temperature sensor, 12-First shut-off valve, 13-Pressure sensor, 14-Valve, 15-First three-way valve, 16-Throttling device, 17-Overflow valve, 18-Storage tank, 19-Second circulating pump, 20-Second three-way valve, 21-Third three-way valve, 22-Second shut-off valve, 23-Fourth three-way valve. Detailed Implementation

[0036] The present invention will be described in detail below with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in the embodiments of the present invention can be combined with each other. For ease of description, the terms "upper," "lower," "left," and "right" appearing below only indicate that they correspond to the upper, lower, left, and right directions in the accompanying drawings and do not limit the structure.

[0037] Example

[0038] like Figure 1 The multi-generation temperature control system in this embodiment includes a compressor 1, a condenser, an evaporator, a first solution tank 2, a second solution tank 3, a first circulation pump 7, a second circulation pump 19, a liquid storage tank 9, a filter 10, a throttling device 16, a first three-way valve 15, a second three-way valve 20, and a valve 14. The condenser is located in the second solution tank 3, and the evaporator is located in the first solution tank 2. Valve 14 is a proportional flow valve or a solenoid valve, and the throttling device 16 is an expansion valve.

[0039] The outlet of compressor 1 is connected to the inlet of condenser via a pipeline. A liquid receiver 9, a filter 10, and a throttling device 16 are sequentially installed between the outlet of condenser and the inlet of evaporator. The outlet of evaporator is connected to the inlet of compressor 1 via a pipeline.

[0040] The outlet of the first solution tank 2 is connected to the inlet of the first circulating pump 7 through a pipeline. The outlet of the first circulating pump 7 is connected to the inlet of the first three-way valve 15 through a pipeline. A refrigeration device 5 is installed between the first outlet of the first three-way valve 15 and the inlet of the first solution tank 2. Multiple refrigeration devices can be installed in parallel or in series.

[0041] The outlet of the second solution tank 3 is connected to the inlet of the second circulating pump 19 via a pipeline. The outlet of the second circulating pump 19 is connected to the inlet of the third three-way valve 21. The first outlet of the third three-way valve 21 is connected to the inlet of the first shut-off valve 12. The outlet of the first shut-off valve 12 is connected to the first inlet of the second three-way valve 20. A heating device 6 is installed between the outlet of the second three-way valve 20 and the first inlet of the fourth three-way valve 23. Multiple heating devices can be installed in parallel or in series. The outlet of the fourth three-way valve 23 is connected to the inlet of the second solution tank 3.

[0042] The second outlet of the third three-way valve 21 is connected to the inlet of the second shut-off valve 22 via a pipeline. The outlet of the second shut-off valve 22 is connected to the inlet of the heat sink 4 via a pipeline. The outlet of the heat sink 4 is connected to the second inlet of the fourth three-way valve 23 via a pipeline. A cooling device 8, such as a fan, is installed outside the heat sink 4.

[0043] The second outlet of the first three-way valve 15 is connected to the inlet of valve 14 via a pipeline, and the outlet of valve 14 is connected to the second inlet of the second three-way valve 20 via a pipeline.

[0044] A temperature sensor 11 and a pressure sensor 13 are installed on the pipeline between the first outlet of the first three-way valve 15 and the inlet of the first solution tank 2. A temperature sensor 11 and a pressure sensor 13 are also installed on the pipeline between the outlet of the second three-way valve 20 and the inlet of the second solution tank 3.

[0045] A bypass is installed on the pipeline between the outlet of the second three-way valve 20 and the inlet of the second solution tank 3, and an overflow valve 17 and a water storage tank 18 are installed in sequence on the bypass.

[0046] The compressor system consists of compressor 1, condenser, evaporator, first solution tank 2, second solution tank 3, liquid storage tank 9, filter 10, throttling device 16, etc. It can generate cold water and hot water required for subsequent cooling and heating by cooling through the first solution tank and conducting heat through the second solution tank.

[0047] The hot-end water circuit consists of the second circulating pump 19, the second three-way valve 20, the third three-way valve 21, the first shut-off valve 12, the second shut-off valve 13, the fourth three-way valve 23, the heat sink 4, and the cooling equipment 8.

[0048] The first circulating pump 7, the first three-way valve 15, etc. constitute the cold end water circuit.

[0049] The first three-way valve 15, valve 14, and the second three-way valve 20 form a mixing water circuit. The mixing water circuit is used to guide water from the cold end to the hot end. By controlling the opening and closing time and opening degree of valve 14, the water is mixed to achieve temperature control.

[0050] like Figure 1 , Figure 2 When operating only in cooling mode, the first shut-off valve 12 is closed, the second shut-off valve 22 is opened, and valve 14 is closed. Hot water from the second solution tank 3 enters the heat dissipation tank 4. Excess heat is discharged via air cooling through the cooling device 8 and then circulated back to the second solution tank 3. Heat from the compressor's hot end is dissipated through the cooling device to maintain the compressor temperature within its operating range, ensuring stable cooling efficiency and power output. Cold water from the first solution tank 2 cools the refrigeration device 5 and circulates back to the first solution tank 2.

[0051] like Figure 1 , Figure 3 When in cooling or heating mode, the first shut-off valve 12 is opened and the second shut-off valve 22 is closed. The hot water in the second solution tank 3 heats the heating device 6 and circulates back to the second solution tank 3. The cold water in the first solution tank 2 cools the cooling device 5 and circulates back to the first solution tank 2. A mixing water circuit is set between the hot and cold water circuits to guide the cold water to the hot water circuit. By controlling the opening and closing time and opening degree of the regulating valve 14, the hot and cold water are mixed to achieve temperature control, improving the temperature control accuracy to ±0.5℃, meeting the requirements of different temperature conditions.

[0052] This embodiment can control the required cold and hot water temperatures and regulate the temperature of external heating / cooling equipment by controlling the compressor's operating frequency and power, thus achieving the effect of multi-generational power supply.

[0053] This multi-generation temperature control system can be used in industrial production to realize the functions of temperature control equipment such as mold temperature controllers and water chillers. For example, after the hot end water is connected to the injection molding machine, it provides the mold with a high-precision water temperature and improves the product yield. The cold end water is introduced into the equipment that needs to be cooled to realize the function of a water chiller. In addition, the cooling end can also be connected to air conditioners, capillary tubes and other equipment that need cooling.

[0054] This system can be selected for cooling only, heating only, or multi-generation functions according to needs. When only cooling is needed and heating is not required, heat can be dissipated through the fan. When heating only is needed, the chilled water is self-circulated to ensure that the cold end of the compressor is within the operating temperature range, so as to ensure heating efficiency and heating power. In multi-generation mode, the connection with the heat sink and fan is disconnected. This system can meet the needs of various working conditions and applications.

[0055] This utility model's external heating or cooling equipment can be a single device or multiple different devices. As the total number of devices (n) increases, it can be called an n-type combined supply system. For example, if the hot end is connected to a mold temperature controller and the cold end is used for three functions—a chiller and an air conditioner—it can be called a triple supply system.

[0056] A multi-generation system is a comprehensive energy supply technology that uses a single energy input (such as electricity) to simultaneously produce two or more forms of energy (such as cooling and hot water), i.e., cold water and hot water on both sides, to achieve cascaded utilization and efficient conversion of energy.

[0057] The above embodiments should be understood as being used only to illustrate the present invention more clearly, and not to limit the scope of the present invention. After reading the present invention, any modifications of the embodiments by those skilled in the art in various equivalent forms fall within the scope defined by the appended claims.

Claims

1. A multi-supply temperature control system, comprising a compressor (1), a condenser, an evaporator, a first solution tank (2), a second solution tank (3), a first circulating pump (7), a second circulating pump (19), a throttling device (16), characterized in that, The first three-way valve (15), the second three-way valve (20) and the valve (14) are further included. The condenser is arranged in the second solution tank (3), and the evaporator is arranged in the first solution tank (2). The outlet of the compressor (1) is communicated with the inlet of the condenser through a pipeline, the outlet of the condenser is communicated with the inlet of the throttling device (16) through a pipeline, the outlet of the throttling device (16) is communicated with the inlet of the evaporator through a pipeline, and the outlet of the evaporator is communicated with the inlet of the compressor (1) through a pipeline. The outlet of the first solution tank (2) is communicated with the inlet of the first circulating pump (7) through a pipeline, the outlet of the first circulating pump (7) is communicated with the inlet of the first three-way valve (15) through a pipeline, and the first outlet of the first three-way valve (15) is communicated with the inlet of the first solution tank (2) through a pipeline. The outlet of the second solution tank (3) is communicated with the inlet of the second circulating pump (19) through a pipeline, the outlet of the second circulating pump (19) is communicated with the first inlet of the second three-way valve (20) through a pipeline, and the outlet of the second three-way valve (20) is communicated with the inlet of the second solution tank (3) through a pipeline. The second outlet of the first three-way valve (15) is communicated with the inlet of the valve (14) through a pipeline, and the outlet of the valve (14) is communicated with the second inlet of the second three-way valve (20) through a pipeline.

2. The multi -supply temperature control system of claim 1, wherein, The valve (14) is a proportional flow valve or an electromagnetic valve.

3. The multi -supply temperature control system of claim 1, wherein, A liquid storage tank (9) and a filter (10) are arranged in sequence on the pipeline between the outlet of the condenser and the inlet of the throttling device (16).

4. The multi -circuit temperature control system of claim 1, wherein, A bypass is arranged on the pipeline between the outlet of the second three-way valve (20) and the inlet of the second solution tank (3), and an overflow valve (17) and a water storage tank (18) are arranged in sequence on the bypass.

5. The multi -generation temperature control system of claim 1, wherein, A temperature sensor (11) and a pressure sensor (13) are arranged on the pipeline between the first outlet of the first three-way valve (15) and the inlet of the first solution tank (2).

6. The multi -generation temperature control system of claim 1, wherein, A temperature sensor (11) and a pressure sensor (13) are arranged on the pipeline between the outlet of the second three-way valve (20) and the inlet of the second solution tank (3).

7. The multi-circuit temperature control system according to any one of claims 1-6, wherein, A third three-way valve (21) and a first stop valve (12) are arranged in sequence on the pipeline between the outlet of the second circulating pump (19) and the first inlet of the second three-way valve (20), and a fourth three-way valve (23) is arranged on the pipeline between the outlet of the second three-way valve (20) and the inlet of the second solution tank (3). The outlet of the second circulating pump (19) is communicated with the inlet of the third three-way valve (21), the first outlet of the third three-way valve (21) is communicated with the inlet of the first stop valve (12), and the outlet of the first stop valve (12) is communicated with the first inlet of the second three-way valve (20). The outlet of the second three-way valve (20) is communicated with the first inlet of the fourth three-way valve (23), and the outlet of the fourth three-way valve (23) is communicated with the inlet of the second solution tank (3). The second outlet of the third three-way valve (21) is communicated with the inlet of the second stop valve (22) through a pipeline, the outlet of the second stop valve (22) is communicated with the inlet of the heat sink (4) through a pipeline, and the outlet of the heat sink (4) is communicated with the second inlet of the fourth three-way valve (23) through a pipeline. A cooling device (8) is arranged outside the heat sink (4).

8. The multi -generation temperature control system of claim 7, wherein, At least one heating device (6) is arranged in parallel or in series on the pipeline between the outlet of the second three-way valve (20) and the first inlet of the fourth three-way valve (23).

9. The multi -generation temperature control system of claim 7, wherein, At least one refrigeration device (5) is arranged in parallel or in series on the pipeline between the first outlet of the first three-way valve (15) and the inlet of the first solution tank (2).

10. The multi-circuit temperature control system according to any one of claims 1-6, wherein, At least one heating device (6) is arranged in parallel or in series on the pipeline between the outlet of the second three-way valve (20) and the inlet of the second solution tank (3); and / or at least one refrigeration device (5) is arranged in parallel or in series on the pipeline between the first outlet of the first three-way valve (15) and the inlet of the first solution tank (2).

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