Waterway heat management equipment and laboratory

Abstract

The utility model discloses waterway heat management equipment and a laboratory. The waterway heat management equipment is used for a laboratory and comprises a first three-way valve, a second three-way valve, a water pump, a waterway heat exchanger, a cooler, a heat recovery coil and a controller, and the waterway heat exchanger is provided with a first channel and a second channel which exchange heat with each other; the controller is connected with the first three-way valve, the second three-way valve and the water pump and used for controlling the first three-way valve and the second three-way valve to be connected and controlling the water pump to be started and stopped. The water pump, the second three-way valve, the heat recovery coil, a second channel of the waterway heat exchanger and the first three-way valve form a first loop; the water pump, the second three-way valve, the cooler, the second channel of the waterway heat exchanger and the first three-way valve form a second loop; the water pump, the second three-way valve, the heat recovery coil, the cooler and the first three-way valve form a third loop. According to the utility model, the two three-way valves are used for switching the flow channels, so that cold and hot transmission is realized, and energy consumption is reduced.

Description

Technical Field

[0001] The present application relates to the field of heat exchange equipment, and in particular to a water channel thermal management device and a laboratory. Background Art

[0002] With the development of technology, in order to determine the cooling / heating conditions of the machine under test (air conditioner), various test laboratories for measuring the refrigeration capacity of the machine under test have emerged, which are built based on the principle of air enthalpy difference method.

[0003] In existing laboratories, after the machine under test produces cold water through cooling, it is heated by electric heating or heat pump, and the heated water is returned to the machine under test. This process consumes a lot of electricity.

[0004] Therefore, in order to reduce the electric energy consumed in heating the cold water cooled by the tested machine and solve the above-mentioned technical problems, it is urgent to provide a water circuit thermal management equipment and laboratory. Utility Model Content

[0005] In view of the above technical problems, the purpose of this application is to provide a water channel thermal management equipment and laboratory.

[0006] To achieve the above objectives, this application is implemented through the following technical solutions:

[0007] The present application provides a water circuit thermal management device, which is used in a laboratory. The water circuit thermal management device comprises a first three-way valve, a second three-way valve, a water pump, a water circuit heat exchanger, a cooler, a heat recovery coil and a controller; the heat recovery coil is arranged in the working room of the laboratory, the cooler is arranged outdoors, the water circuit heat exchanger has a first channel and a second channel for mutual heat exchange, and one end of the first channel is connected to the water outlet of the machine under test;

[0008] The controller is connected to the first three-way valve, the second three-way valve and the water pump respectively, and is used to control the conduction of the first three-way valve and the second three-way valve, and control the start and stop of the water pump;

[0009] The water pump, the second three-way valve, the heat recovery coil, the second channel of the water heat exchanger and the first three-way valve constitute a first circuit;

[0010] The water pump, the second three-way valve, the cooler, the second channel of the water heat exchanger and the first three-way valve constitute a second circuit;

[0011] The water pump, the second three-way valve, the heat recovery coil, the cooler and the first three-way valve form a third loop.

[0012] A further technical solution is that the controller is used to control the first end and the second end of the first three-way valve to be connected, the first end and the second end of the second three-way valve to be connected, and control the water pump to be turned on;

[0013] In the first circuit, the water outlet end of the water pump is connected to one end of the heat recovery coil through the second end and the first end of the second three-way valve, and the other end of the heat recovery coil is connected to the water inlet end of the water pump through the second channel of the water heat exchanger, the first end and the second end of the first three-way valve.

[0014] A further technical solution is that the controller is used to control the first end and the second end of the first three-way valve to be connected, the second end and the third end of the second three-way valve to be connected, and control the water pump to be turned on;

[0015] In the second circuit, the water outlet end of the water pump is connected to one end of the cooler through the second end and the third end of the second three-way valve, and the other end of the cooler is connected to the water inlet end of the water pump through the second channel of the water heat exchanger, the first end and the second end of the first three-way valve.

[0016] A further technical solution is that the controller is used to control the second end and the third end of the first three-way valve to be connected, the first end and the second end of the second three-way valve to be connected, and control the water pump to be turned on;

[0017] In the third circuit, the water outlet end of the water pump is connected to one end of the heat recovery coil through the second end and the first end of the second three-way valve, and the other end of the heat recovery coil is connected to the water inlet end of the water pump through the cooler, the third end and the second end of the first three-way valve.

[0018] A further technical solution is that the cooler is a natural cooler.

[0019] A further technical solution is that the first three-way valve and / or the second three-way valve is any one of a ball valve including an electric actuator and a plug valve including an electric actuator.

[0020] A further technical solution is that the water pump is a centrifugal pump or a turbine pump.

[0021] The present application also provides a laboratory, which is an enthalpy difference laboratory, and the enthalpy difference laboratory includes any of the water channel thermal management devices described above.

[0022] Compared with related technologies, the advantages of the utility model include: by making full use of the waste heat in the working room and the natural energy outdoors, the water circuit thermal management equipment greatly reduces the dependence on electric heaters and heat pumps, and significantly reduces the power consumption of the laboratory. The structure of the above-mentioned water circuit thermal management equipment is suitable for laboratories. By switching each circuit, it is possible to maximize the use of natural resources for temperature regulation, greatly improving energy utilization efficiency. In summary, the water circuit thermal management equipment uses two three-way valves to switch the flow channel to achieve the transmission of hot and cold, reduce the electrical energy consumed by heating the cold water cooled by the test machine, maximize the energy consumption of the laboratory, reduce operating costs, and have significant economic benefits. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 A schematic diagram of the structure of a water channel thermal management device provided by the prior art is shown;

[0024] Figure 2 A schematic diagram of the structure of a water channel thermal management device provided in an embodiment of the present application is shown;

[0025] Figure 3 A schematic diagram of a first circuit of a water channel thermal management device provided in an embodiment of the present application is shown;

[0026] Figure 4 A schematic diagram of a second circuit of a water channel thermal management device provided in an embodiment of the present application is shown;

[0027] Figure 5 A schematic diagram of a third loop of a water channel thermal management device provided in an embodiment of the present application is shown.

[0028] As shown in the figure, 1. water heat exchanger; 2. cooler; 3. heat recovery coil; 4. first three-way valve; 5. water pump; 6. second three-way valve; 4A. first end of the first three-way valve; 4B. second end of the first three-way valve; 4C. third end of the first three-way valve; 6A. first end of the second three-way valve; 6B. second end of the second three-way valve; 6C. third end of the second three-way valve. DETAILED DESCRIPTION

[0029] In order to facilitate the understanding of the present application, the present application will be described more comprehensively with reference to the relevant drawings below. The preferred embodiments of the present application are provided in the drawings. However, the present application can be implemented in many other different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the understanding of the disclosure of the present application more thorough and comprehensive.

[0030] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art to which this application belongs. The terms used herein in the specification of this application are only for the purpose of describing specific embodiments and are not intended to limit this application. The term "and / or" used herein includes any and all combinations of one or more of the related listed items.

[0031] Enthalpy difference experiment is an experiment to measure the enthalpy change of a system at different temperatures. It is often used to study the thermodynamic properties of materials or the thermal effects of reactions. The tested machine is a variety of experimental equipment, such as a compressor refrigerator, a semiconductor refrigerator, etc.

[0032] When the machine under test is running, cold water is discharged. In order to continue the test, the cold water needs to be heated and then circulated into the machine under test. Figure 1 , the drainage of the machine under test needs to be heated by a heat pump before entering the water inlet of the machine under test for continued use. The present application proposes a water circuit thermal management device and laboratory, which uses free outdoor heat, or hot water generated by high temperature in the working room to heat the outlet water of the machine under test, thereby saving the energy consumption of heating the water tank of traditional electric heating equipment. At the same time, the working room is always releasing heat. When cooling is required, since the outdoor ambient temperature is lower than the indoor temperature of the working room, the free outdoor cooling can be used; or since the outlet side of the machine under test needs to be heated to release cooling, the cooling capacity of the outlet side can be used to offset the additional costs incurred by the cooling unit of the working room.

[0033] The following will be combined with the accompanying drawings and specific implementation methods to specifically describe in detail the technical solutions of the embodiments of the present application and how the technical solutions of the embodiments of the present application solve the above-mentioned technical problems. It should be noted that the embodiments described below or the technical features can be arbitrarily combined to form new embodiments. The description order of the following embodiments is not intended to limit the preferred order of the embodiments. The same or similar concepts or processes may not be repeated in some embodiments. Obviously, the described embodiments are part of the embodiments of the present application, not all of them.

[0034] See also Figures 2 to 5 , this embodiment provides a water channel thermal management device, Figures 3 to 5 The dotted arrow line in the figure is used to illustrate the direction of water flow. The water circuit thermal management device includes a first three-way valve 4, a second three-way valve 6, a water pump 5, a water circuit heat exchanger 1, a cooler 2, a heat recovery coil 3 and a controller (not shown); the heat recovery coil 3 is arranged in the working room of the laboratory, the cooler 2 is arranged outdoors, the water circuit heat exchanger 1 has a first channel and a second channel for mutual heat exchange, and one end of the first channel is connected to the water outlet of the machine under test;

[0035] The controller is connected to the first three-way valve 4, the second three-way valve 6 and the water pump 5 respectively, and is used to control the conduction of the first three-way valve 4 and the second three-way valve 6, and control the start and stop of the water pump 5;

[0036] The water pump 5, the second three-way valve 6, the heat recovery coil 3, the second channel of the water heat exchanger 1 and the first three-way valve 4 constitute a first circuit;

[0037] The water pump 5, the second three-way valve 6, the cooler 2, the second channel of the water heat exchanger 1 and the first three-way valve 4 constitute a second circuit;

[0038] The water pump 5 , the second three-way valve 6 , the heat recovery coil 3 , the cooler 2 and the first three-way valve 4 form a third loop.

[0039] It can be considered that the temperature of the liquid discharged from the water outlet of the machine under test of the present application is relatively low and needs to be heated. The water circuit thermal management equipment provided by the present application, through the structural combination of two three-way valves and a water pump, switches the flow channel to realize different circuit structures, which can realize the transmission of hot and cold when used in the laboratory, and save laboratory energy consumption to the maximum extent and reduce energy loss. Among them, the controller is respectively connected to the first three-way valve 4, the second three-way valve 6 and the water pump 5, and is used to control the conduction and start and stop of the above-mentioned equipment. In specific applications, the water circuit thermal management equipment provided by the present application can monitor the temperature and operating status of the machine under test through the controller and the laboratory (temperature) sensor, and select the best circuit from the first circuit, the second circuit and the third circuit for water temperature regulation.

[0040] As an example, see Figure 3 , the water pump 5, the second three-way valve 6, the heat recovery coil 3, the second channel of the water heat exchanger 1 and the first three-way valve 4 form a first loop. When the temperature of the working room is 5°C higher than the water temperature of the tested machine, the heat recovery coil 3 transfers the heat of the working room through the first loop of the water heat management device and flows through the second channel of the water heat exchanger 1, making the water temperature of the second channel higher than that of the first channel, and then the heat exchange of the water heat exchanger 1 heats up the cold water discharged from the water outlet of the tested machine through the first channel.

[0041] As another example, see Figure 4, the water pump 5, the second three-way valve 6, the cooler 2, the second channel of the water heat exchanger 1 and the first three-way valve 4 form the second circuit. When the indoor ambient temperature is equal to or even lower than the water temperature of the machine under test, and the outdoor ambient temperature is 5°C higher than the water temperature, the cooler 2 transfers the heat of the outdoor high-temperature air through the second circuit, that is, through the second channel of the water heat exchanger 1, so that the water temperature of the second channel is higher than that of the first channel, and then the heat exchange of the water heat exchanger 1 is used to heat the cold water discharged from the water outlet of the machine under test through the first channel. Since the outdoor high-temperature air is used to heat the water temperature of the machine under test, electricity is saved.

[0042] As yet another example, see Figure 5 The water pump 5, the second three-way valve 6, the heat recovery coil 3, the cooler 2 and the first three-way valve 4 form a third loop. When the outdoor ambient temperature is low and the working room needs to be cooled, the heat of the working room is brought to the outdoors through the cooler 2 through the third loop.

[0043] Among them, the cooler 2 can be a natural cooler. The working room of the laboratory needs to be cooled down due to the heat release of the machine under test. When the outdoor ambient temperature is lower than the temperature in the working room, the free cold outside can be used, or when the water side needs to be heated to release cold, the cold on the water side can be used to offset the additional costs incurred by the refrigeration unit cooling. One end of the first channel is connected to the water outlet of the machine under test, and the other end can be directly connected to the water inlet of the machine under test, or it can be connected to a heating device such as a heat pump and then connected to the water outlet of the machine under test. Since the water circuit thermal management equipment provided in the present application can heat the liquid discharged from the water outlet of the machine under test in advance, it will obviously greatly reduce the energy consumption of subsequent heating equipment.

[0044] The effect of the above technical solution is that by making full use of the waste heat in the working room and the natural energy outside, the water circuit thermal management equipment greatly reduces the dependence on electric heaters and heat pumps, and significantly reduces the power consumption of the laboratory. The structure of the above water circuit thermal management equipment is suitable for laboratories. By switching each circuit, it can maximize the use of natural resources for temperature regulation, greatly improving energy utilization efficiency.

[0045] In summary, this water circuit thermal management equipment uses two three-way valves to switch the flow channel to achieve the transmission of hot and cold, reduce the electrical energy consumed by heating the cold water cooled by the tested machine, save laboratory energy consumption to the maximum extent, reduce operating costs, and has significant economic benefits.

[0046] It is worth noting that the water circuit thermal management equipment provided in the present application not only recycles the excess heat in the working room, but also utilizes the energy of the outdoor environment through the three-way valve and the water pump 5, using the high-temperature outdoor air to heat the water temperature of the machine under test, or to cool the working room.

[0047] In some embodiments, the controller is used to control the first end 4A of the first three-way valve to be connected to the second end 4B of the first three-way valve, the first end 6A of the second three-way valve to be connected to the second end 6B of the second three-way valve, and control the water pump 5 to be turned on;

[0048] In the first circuit, the water outlet end of the water pump 5 is connected to one end of the heat recovery coil 3 through the second end 6B of the second three-way valve and the first end 6B of the second three-way valve, and the other end of the heat recovery coil 3 is connected to the water inlet end of the water pump 5 through the second channel of the water circuit heat exchanger 1, the first end 4A of the first three-way valve and the second end 4B of the first three-way valve.

[0049] That is, the controller controls the first end 4A of the first three-way valve to be connected with the second end 4B of the first three-way valve, and the first end 6A of the second three-way valve to be connected with the second end 6B of the second three-way valve, and controls the start and stop of the water pump 5. The water outlet of the water pump 5 is connected with one end of the heat recovery coil 3 through the first end 6A of the second three-way valve and the second end 6B of the second three-way valve. The other end of the heat recovery coil 3 is connected with the water inlet of the water pump 5 through the second channel of the water heat exchanger 1, the first end 4A of the first three-way valve and the second end 4B of the first three-way valve. When the water pump 5 is started in the first loop operation state, the cold water at the outlet of the tested machine first enters the first channel of the water heat exchanger 1, and the cold water exchanges heat with the water in the second channel in the first channel of the water heat exchanger 1. The water coming out of the water heat exchanger 1 enters the heat recovery coil 3 through the second three-way valve, and is further heated by the waste heat of the working room. The heated water flows through the second channel and returns to the water inlet of the water pump 5 through the first three-way valve, forming a closed loop.

[0050] The effect of the above technical solution is that by using the waste heat of the working room to adjust the water temperature, the dependence on electric heaters and heat pumps is effectively reduced, and the power consumption of the laboratory is significantly reduced. Under appropriate conditions, the heat of the natural environment can be fully utilized to adjust the water temperature, achieving high efficiency and energy saving.

[0051] In some embodiments, the controller is used to control the first end 4A of the first three-way valve to be connected to the second end 4B of the first three-way valve, the second end 6B of the second three-way valve to be connected to the third end 6C of the second three-way valve, and control the water pump 5 to be turned on;

[0052] In the second circuit, the water outlet end of the water pump 5 is connected to one end of the cooler 2 through the second end 6B of the second three-way valve and the third end 6C of the second three-way valve, and the other end of the cooler 2 is connected to the water inlet end of the water pump 5 through the second channel of the water heat exchanger 1, the first end 4A of the first three-way valve and the second end 4B of the first three-way valve.

[0053] The effect of the above technical solution is to use the outdoor high temperature air to heat the water temperature of the machine under test, saving electricity

[0054] In some embodiments, the controller is used to control the second end 4B of the first three-way valve to be connected to the third end 4C of the first three-way valve, the first end 6A of the second three-way valve to be connected to the second end 6B of the second three-way valve, and control the water pump 5 to be turned on;

[0055] In the third circuit, the water outlet end of the water pump 5 is connected to one end of the heat recovery coil 3 through the second end 6B of the second three-way valve and the first end 6A of the second three-way valve, and the other end of the heat recovery coil 3 is connected to the water inlet end of the water pump 5 through the cooler 2, the third end 4C of the first three-way valve and the second end 4B of the first three-way valve.

[0056] The effect of the above technical solution is that the temperature of the working room can be cooled with low power consumption.

[0057] In some embodiments, the first three-way valve and / or the second three-way valve is any one of a ball valve including an electric actuator and a plug valve including an electric actuator.

[0058] The effect of the above technical solution is that the electric actuator can realize the control of the valve to ensure the fluid flow. By controlling the valve through the electric actuator, the error and uncertainty of human operation are reduced, and the reliability and consistency of equipment operation are improved.

[0059] In some embodiments, the water pump 5 is a centrifugal pump or a turbine pump.

[0060] An embodiment of the present application also provides a laboratory, which is an enthalpy difference laboratory. The enthalpy difference laboratory includes the water channel thermal management device described in any of the above embodiments. The implementation method and effect of the water channel thermal management device have been stated above and will not be repeated here.

[0061] The terms "first", "second", etc. in the specification and claims of the present application and the above-mentioned drawings are configured to distinguish similar objects, and are not necessarily configured to describe a specific order or sequence. It should be understood that the data used in this way can be interchangeable where appropriate, so that the embodiments of the present application described herein can be implemented in an order other than those illustrated or described herein. In addition, the terms "including" and "having" and any of their variations are intended to cover non-exclusive inclusions, for example, a process, method, system, product or device comprising a series of steps or units is not necessarily limited to those steps or units clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0062] This application is explained from the perspectives of purpose of use, effectiveness, progress and novelty, and has met the functional enhancement and usage requirements emphasized by the Patent Law. The above description and drawings of this application are only the preferred embodiments of this application, and are not intended to limit this application. Therefore, all structures, devices, features, etc. that are similar or identical to this application, that is, all equivalent replacements or modifications made in accordance with the scope of the patent application of this application, should fall within the scope of protection of the patent application of this application.

Claims

1. A water channel thermal management device, characterized in that: The water circuit thermal management device is used in a laboratory, and the water circuit thermal management device includes a first three-way valve, a second three-way valve, a water pump, a water circuit heat exchanger, a cooler, a heat recovery coil and a controller; The heat recovery coil is arranged in the working room of the laboratory, the cooler is arranged outdoors, the water heat exchanger has a first channel and a second channel for mutual heat exchange, and one end of the first channel is connected to the water outlet of the machine under test; The controller is connected to the first three-way valve, the second three-way valve and the water pump respectively, and is used to control the conduction of the first three-way valve and the second three-way valve, and control the start and stop of the water pump; The water pump, the second three-way valve, the heat recovery coil, the second channel of the water heat exchanger and the first three-way valve constitute a first circuit; The water pump, the second three-way valve, the cooler, the second channel of the water heat exchanger and the first three-way valve constitute a second circuit; The water pump, the second three-way valve, the heat recovery coil, the cooler and the first three-way valve form a third loop.

2. The water channel thermal management device according to claim 1, characterized in that: The controller is used to control the first end and the second end of the first three-way valve to be connected, the first end and the second end of the second three-way valve to be connected, and control the water pump to be turned on; In the first circuit, the water outlet end of the water pump is connected to one end of the heat recovery coil through the second end and the first end of the second three-way valve, and the other end of the heat recovery coil is connected to the water inlet end of the water pump through the second channel of the water heat exchanger, the first end and the second end of the first three-way valve.

3. The water channel thermal management device according to claim 1, characterized in that: The controller is used to control the first end and the second end of the first three-way valve to be connected, the second end and the third end of the second three-way valve to be connected, and control the water pump to be turned on; In the second circuit, the water outlet end of the water pump is connected to one end of the cooler through the second end and the third end of the second three-way valve, and the other end of the cooler is connected to the water inlet end of the water pump through the second channel of the water heat exchanger, the first end and the second end of the first three-way valve.

4. The water channel thermal management device according to claim 1, characterized in that: The controller is used to control the second end and the third end of the first three-way valve to be connected, the first end and the second end of the second three-way valve to be connected, and control the water pump to be turned on; In the third circuit, the water outlet end of the water pump is connected to one end of the heat recovery coil through the second end and the first end of the second three-way valve, and the other end of the heat recovery coil is connected to the water inlet end of the water pump through the cooler, the third end and the second end of the first three-way valve.

5. The water channel thermal management device according to claim 1, characterized in that: The cooler is a natural cooler.

6. The water channel thermal management device according to claim 1, characterized in that: The first three-way valve and / or the second three-way valve is any one of a ball valve including an electric actuator and a plug valve including an electric actuator.

7. The water channel thermal management device according to claim 1, characterized in that: The water pump is a centrifugal pump or a turbine pump.

8. A laboratory, characterized in that: The laboratory is an enthalpy difference laboratory, and the enthalpy difference laboratory includes the water channel thermal management equipment according to any one of claims 1 to 7.

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