Air energy laboratory mixed water tank system, control method and storage medium

Abstract

The application discloses an air energy laboratory mixed water tank system, a control method and a storage medium, and belongs to the technical field of air energy laboratory mixed water tank systems.The air energy laboratory mixed water tank system comprises a mixed water tank, a working condition machine, a measured machine water pump, a circulating pipeline structure, a flow adjusting device and a control system.The circulating pipeline structure comprises a water supply pipe section, a water outlet pipe section, a mixed pipe section, the water supply pipe section is connected between a water pump water outlet and a test water inlet, a water outlet pipe opening of the water outlet pipe section is connected with a test water outlet, a first branch pipe opening is connected with a water tank water inlet, a first mixed pipe opening of the mixed pipe section is connected with a water tank water outlet, a second mixed pipe opening is connected with a water pump water inlet, and a third mixed pipe opening is connected with a second branch pipe opening.The flow adjusting device is arranged between the third mixed pipe opening and the second branch pipe opening.The temperature detecting device is used for detecting the inlet water temperature at the water pump water outlet and the outlet water temperature at the water tank water inlet.The air energy laboratory mixed water tank system can shorten the test time, reduce the test cost and improve the energy efficiency.

Description

TECHNICAL FIELD

[0001] The present application relates to the air energy laboratory related technical field, and in particular to an air energy laboratory mixed water tank system, a control method and a storage medium. BACKGROUND

[0002] Air energy is in the early stage of research and development and sampling inspection in the laboratory corresponding experiments, through data analysis of the various problems of the tested machine. The tested machine is mainly a wind-cooled module air energy heat pump unit. When testing the heating and cooling performance of the waterway of the wind-cooled module air energy heat pump unit in the laboratory, the water temperature simulation needs to be carried out. The water temperature of the test water input into the tested machine is simulated to a preset value. Then, by measuring the flow of the test water entering the tested machine and the temperature difference between the water inlet and outlet of the tested machine, the heating and cooling performance of the tested machine can be judged. The test water output from the tested machine is then sent to the mixed water tank. The test water in the mixed water tank is heated or cooled to the preset value needed for simulation by the working condition machine. Then, the test water is input into the water inlet of the tested machine again to complete the water circulation process and achieve the purpose of laboratory testing.

[0003] The traditional air energy laboratory directly heats or cools the test water in the mixed water tank to the preset value needed for simulation by the working condition machine and then inputs the test water into the water inlet of the tested machine. This method has a long test time, high test cost and low energy efficiency. SUMMARY

[0004] The present application aims to at least solve one of the technical problems existing in the prior art. To this end, the present application provides an air energy laboratory mixed water tank system, which can shorten the test time, reduce the test cost and improve the energy efficiency.

[0005] The present application also provides an air energy laboratory mixed water tank system, a control method and a computer readable storage medium.

[0006] The air energy laboratory mixed water tank system according to the first aspect of the present application is applied to a tested machine. The tested machine has a test water inlet and a test water outlet. The tested machine has a heating function and a cooling function. The air energy laboratory mixed water tank system comprises:

[0007] A mixed water tank having a water tank water outlet and a water tank water inlet, the mixed water tank being used to store test water;

[0008] A working condition machine for providing heat or cold to the test water;

[0009] A measured machine water pump having a water pump water inlet and a water pump water outlet, the measured machine water pump being used to draw the test water from the mixed water tank and supply the test machine;

[0010] The circulation pipeline structure comprises a water supply pipe section, a water outlet pipe section and a mixing pipe section, the water supply pipe section is connected between a water pump water outlet and a test water inlet, the water outlet pipe section has a water outlet pipe opening, a first branch pipe opening and a second branch pipe opening, the water outlet pipe opening is connected with the test water outlet, the first branch pipe opening is connected with a water tank water inlet, the mixing pipe section has a first mixing pipe opening, a second mixing pipe opening and a third mixing pipe opening, the first mixing pipe opening is connected with a water tank water outlet, the second mixing pipe opening is connected with a water pump water inlet, and the third mixing pipe opening is connected with the second branch pipe opening;

[0011] A flow regulating device is arranged between the third mixing pipe opening and the second branch pipe opening, and is used for regulating the water flow flowing to the third mixing pipe opening;

[0012] A temperature detecting device is used for detecting the water inlet temperature at the water pump water outlet and the water outlet temperature at the water tank water inlet;

[0013] A control system is electrically connected with the working condition machine, the water pump of the machine to be tested, the flow regulating device and the temperature detecting device.

[0014] The air energy laboratory mixed water tank system according to the embodiment of the present application has at least the following beneficial effects:

[0015] The test water in the mixed water tank can be pumped by the water pump of the tested machine to the tested machine to simulate the water inlet temperature in the environment, so as to test the refrigeration or heating of the tested machine. The test water after the refrigeration or heating of the tested machine is output from the test water outlet to the water outlet pipe section, and is input to the mixed water tank through the first branch pipe opening and the second branch pipe opening. The water inlet temperature at the water pump outlet and the water outlet temperature at the water tank inlet can be detected by the temperature detection device, and the working mode of the working condition machine is adjusted by the control system according to the water inlet temperature, the water outlet temperature, the preset target temperature and the test mode of the tested machine, and the opening of the flow regulating device is adjusted based on PID. The test water in the mixed water tank is heated or cooled by the working condition machine, and is output to the mixed pipe section through the water tank outlet. The test water after the refrigeration or heating of the tested machine is output from the flow regulating device, and is mixed in the mixed pipe section to reach the required water inlet temperature for the next time, and is then pumped to the water pump of the tested machine. Compared with the traditional air energy laboratory, the test water in the mixed water tank is directly heated or cooled by the working condition machine to the required water inlet temperature. The air energy laboratory mixed water tank system of the embodiment of the present application divides the test water into two paths, reduces the amount of water that needs to be heated / cooling by the working condition machine, and recovers a part of the test water after the refrigeration / heating of the tested machine to offset the heat / cooling of the working condition machine. The required water inlet temperature can be quickly reached, the test cost is low, and the energy efficiency is high. The air energy laboratory mixed water tank system of the embodiment of the present application can shorten the test time, reduce the test cost, and improve the energy efficiency.

[0016] According to some embodiments of the present application, a mixing structure is arranged inside the mixed water tank, and is used for mixing and stirring the test water.

[0017] According to some embodiments of the present application, the mixing structure comprises a plurality of baffles, and the baffles are arranged on opposite side walls inside the mixed water tank in a staggered manner, and each baffle is arranged at an angle with the side wall inside the mixed water tank.

[0018] According to some embodiments of the present application, the temperature detection device comprises:

[0019] a water inlet temperature sensor arranged at the water pump outlet;

[0020] a water outlet temperature sensor arranged at the water tank inlet;

[0021] a plurality of intermediate temperature sensors arranged between adjacent baffles.

[0022] According to some embodiments of the present application, the air energy laboratory mixed water tank system further comprises an energy recovery device for storing heat or cold of the test water and providing the heat or cold to the test water.

[0023] According to some embodiments of the present application, the mixed water tank further has a mixed circulating water port, and a mixed heat exchange device is arranged inside the mixed water tank, the mixed heat exchange device having a mixed heat exchange port.

[0024] The energy recovery device comprises:

[0025] An energy storage water tank having an energy storage circulating water port, the energy storage water tank being used for storing energy recovery water;

[0026] An energy storage heat exchange device arranged inside the energy storage water tank, the energy storage heat exchange device having an energy storage heat exchange port, the energy storage heat exchange device and the mixed heat exchange device both having heat exchange medium inside;

[0027] An energy recovery pipeline structure comprising a circulating pipe section and a heat exchange pipe section, the circulating pipe section being arranged between the mixed circulating water port and the energy storage circulating water port, and the heat exchange pipe section being arranged between the energy storage heat exchange device and the mixed heat exchange device;

[0028] A circulating water pump arranged on the circulating pipe section and electrically connected to the control system, the circulating water pump being used for driving the heat exchange medium inside the energy storage heat exchange device and the mixed heat exchange device to flow, so as to transfer heat or cold between the test water and the energy recovery water;

[0029] A switch valve arranged on the heat exchange pipe section and electrically connected to the control system.

[0030] According to some embodiments of the present application, the mixed heat exchange device and the energy storage heat exchange device both adopt coil pipes.

[0031] The control method of the air energy laboratory mixed water tank system according to the second aspect of the embodiments of the present application is applied to the air energy laboratory mixed water tank system according to the first aspect of the embodiments of the present application, and the control method comprises the following steps:

[0032] Obtaining the inlet water temperature at the water pump outlet and the outlet water temperature at the water tank inlet, and determining the test mode of the tested machine, the test mode comprising a refrigeration test and a heating test;

[0033] Executing a water temperature adjustment strategy according to the inlet water temperature, the outlet water temperature, a preset target temperature and the test mode, the water temperature adjustment strategy comprising a refrigeration adjustment strategy and a heating adjustment strategy;

[0034] The refrigeration adjustment strategy comprises the following steps:

[0035] According to the water inlet temperature, the water outlet temperature and the target temperature, the working condition machine is adjusted to be in a refrigeration mode until the water outlet temperature is less than a preset refrigeration temperature threshold and the water inlet temperature is less than the target temperature, and the working condition machine is turned off; according to the water inlet temperature and the target temperature, the flow adjusting device is controlled to be opened until a temperature difference between the water inlet temperature and the target temperature is within a preset normal range; the refrigeration temperature threshold is less than the target temperature.

[0036] The heating adjustment strategy comprises the following steps:

[0037] According to the water inlet temperature, the water outlet temperature and the target temperature, the working condition machine is adjusted to be in a heating mode until the water outlet temperature is greater than a preset heating temperature threshold and the water inlet temperature is greater than the target temperature, and the working condition machine is turned off; according to the water inlet temperature and the target temperature, the flow adjusting device is controlled to be opened until a temperature difference between the water inlet temperature and the target temperature is within a preset normal range; the heating temperature threshold is greater than the target temperature.

[0038] The control method of the air energy laboratory mixed water tank system according to the embodiment of the present application has at least the following beneficial effects:

[0039] When the test mode of the tested machine is heating test, the test water entering the test water inlet needs to be cooled to a preset target temperature. By adjusting the working condition machine to be in a refrigeration mode, the test water in the mixed water tank is cooled until the water outlet temperature is less than a preset refrigeration temperature threshold and the water inlet temperature is less than the target temperature, the working condition machine is turned off, and the opening degree of the flow adjusting device is adjusted based on the PID according to the water inlet temperature and the target temperature, the test water output from the mixed water tank is mixed with the test water output from the flow adjusting device, the temperature difference between the test water that is not cooled and the target temperature is offset by the heat of the test water that is cooled, until the temperature difference between the water inlet temperature and the target temperature is within a preset normal range. When the test mode of the tested machine is refrigeration test, the principle is similar. By dividing the test water into two paths, the amount of water that needs to be heated / refrigerated by the working condition machine is reduced, and a part of the test water that is refrigerated / heated by the tested machine is recovered to offset the heat / cold of the working condition machine that is heated / refrigerated, so that the required simulated water inlet temperature can be quickly reached, the test cost is low, and the energy efficiency is high. The control method of the embodiment of the present application can shorten the test time, reduce the test cost and improve the energy efficiency.

[0040] According to some embodiments of the present application, the water temperature adjustment strategy is executed according to the water inlet temperature, the water outlet temperature, a preset target temperature and the test mode, which comprises the following steps:

[0041] if the test mode of the tested machine is heating test, executing the cooling adjustment strategy;

[0042] if the test mode of the tested machine is cooling test, executing the heating adjustment strategy.

[0043] The computer readable storage medium according to the third aspect embodiment of the present application stores computer executable instructions for executing the control method according to the second aspect embodiment. Since the computer readable storage medium adopts all the technical solutions of the control method according to the above embodiments, it has at least all the beneficial effects brought by the technical solutions of the above embodiments.

[0044] Other features and advantages of the present application will be set forth in the following description, and in part will become apparent from the description, or can be learned by practice of the present application. BRIEF DESCRIPTION OF DRAWINGS

[0045] The above and / or additional aspects and advantages of the present application will become apparent and be readily understood from the following description, taken in conjunction with the accompanying drawings, in which:

[0046] Figure 1 is a structural schematic diagram of an air energy laboratory mixed water tank system according to an embodiment of the present application;

[0047] Figure 2 is a perspective view of an air energy laboratory mixed water tank system according to an embodiment of the present application;

[0048] Figure 3 is a front view of an air energy laboratory mixed water tank system according to an embodiment of the present application;

[0049] Figure 4 is a left view of an air energy laboratory mixed water tank system according to an embodiment of the present application;

[0050] Figure 5 is a flow chart of a control method of an air energy laboratory mixed water tank system according to an embodiment of the present application.

[0051] REFERENCE NUMERALS:

[0052] The tested machine 100;

[0053] The mixed water tank 200, the baffle 210, and the mixed heat exchange device 220;

[0054] The working condition water tank 300, the water suction pipe section 310, the working condition water pump 311, and the water return pipe section 320;

[0055] The measured machine water pump 400;

[0056] The water supply pipe section 510, the water outlet pipe section 520, and the mixed pipe section 530;

[0057] Flow regulating device 600;

[0058] Energy storage water tank 700, energy storage heat exchange device 710;

[0059] Circulation pipe section 810, circulation water pump 811, heat exchange pipe section 820, switch valve 821. DETAILED DESCRIPTION

[0060] Embodiments of the present application are described below in detail, examples of which are shown in the drawings, wherein the same or similar reference signs represent the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary, only for explaining the present application, and cannot be understood as limiting the present application.

[0061] In the description of the present application, if the first, second, etc. are described, it is only for the purpose of distinguishing technical features, and cannot be understood as indicating or implying the relative importance of the indicated technical features or implicitly indicating the number of the indicated technical features or the order of the indicated technical features.

[0062] In the description of the present application, it should be understood that the orientation description, such as the orientation or position relationship indicated by up, down, etc. is based on the orientation or position relationship shown in the drawings, only for the convenience of describing the present application and simplifying the description, and is not intended to indicate or imply that the device or element indicated must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0063] In the description of the present application, it should be noted that, unless otherwise explicitly limited, the words such as setting, installing, connecting, etc. should be broadly understood, and the person skilled in the art can reasonably determine the specific meaning of the above words in the present application in combination with the specific content of the technical solution.

[0064] The following will be combined Figures 1 to 4 The air energy laboratory mixed water tank system of the first aspect of the present application is described clearly and completely, and obviously, the following described embodiments are part of the embodiments of the present application, not all embodiments.

[0065] The air energy laboratory mixed water tank system according to the first aspect of the present application is applied to a tested machine 100, the tested machine 100 has a test water inlet and a test water outlet, the tested machine 100 has a heating function and a refrigeration function, and the air energy laboratory mixed water tank system comprises a mixed water tank 200, a working condition machine, a measured machine water pump 400, a circulating pipeline structure, a flow regulating device 600, a temperature detection device and a control system. The mixed water tank 200 has a water tank water outlet and a water tank water inlet, and is used for storing test water; the working condition machine is used for providing heat or cold to the test water; the measured machine water pump 400 has a water pump water inlet and a water pump water outlet, and is used for pumping the test water from the mixed water tank 200 to the tested machine 100; the circulating pipeline structure comprises a water supply pipe section 510, a water outlet pipe section 520 and a mixed pipe section 530, the water supply pipe section 510 is connected between the water pump water outlet and the test water inlet, the water outlet pipe section 520 has a water outlet pipe opening, a first branch pipe opening and a second branch pipe opening, the water outlet pipe opening is connected with the test water outlet, the first branch pipe opening is connected with the water tank water inlet, the mixed pipe section 530 has a first mixed pipe opening, a second mixed pipe opening and a third mixed pipe opening, the first mixed pipe opening is connected with the water tank water outlet, the second mixed pipe opening is connected with the water pump water inlet, and the third mixed pipe opening is connected with the second branch pipe opening; the flow regulating device 600 is arranged between the third mixed pipe opening and the second branch pipe opening, and is used for regulating the water outlet flow to the third mixed pipe opening; the temperature detection device is used for detecting the inlet water temperature at the water pump water outlet and the outlet water temperature at the water tank water inlet; and the control system is electrically connected with the working condition machine, the measured machine water pump 400, the flow regulating device 600 and the temperature detection device.

[0066] The tested machine 100 can heat or cool the test water sucked from the test water inlet, and output the test water to the water outlet pipe section 520 through the test water outlet, one way of the test water enters the mixed water tank 200 through the first branch pipe opening, and the other way of the test water enters the flow regulating device 600 through the second branch pipe opening, the test water output from the water tank water outlet of the mixed water tank 200 and the test water output from the flow regulating device 600 are mixed through the mixed pipe section 530, and then the mixed water is provided to the tested machine 100 through the measured machine water pump 400, so as to complete a water circulation process. When the tested machine 100 performs the heating test, the water temperature of the test water output from the test water outlet to the mixed water tank 200 rises; when the tested machine 100 performs the refrigeration test, the water temperature of the test water output from the test water outlet to the mixed water tank 200 decreases.

[0067] The mixed water tank 200 is further provided with a working condition water outlet and a working condition water inlet. The working condition machine comprises a refrigeration and heating machine, a working condition water tank 300, a working condition water pump 311 and a working condition pipeline. The working condition water tank 300 is provided with a first working condition water inlet and a second working condition water inlet. The working condition pipeline comprises a water suction pipe section 310 and a water return pipe section 320. The water suction pipe section 310 is connected between the working condition water inlet and the first working condition water inlet. The water return pipe section 320 is connected between the working condition water outlet and the second working condition water inlet. The working condition water pump 311 is arranged on the water suction pipe section 310 and electrically connected with the control system. The refrigeration and heating machine is used to heat or cool the water in the working condition water tank 300. The test water in the mixed water tank 200 is sucked into the working condition water tank 300 by controlling the working condition water pump 311, and then the test water is heated or cooled by the refrigeration and heating machine, and then the heated or cooled test water is input into the mixed water tank 200 through the water return pipe section 320.

[0068] The flow regulating device 600 adopts a proportional-integral two-way valve, which can adjust the opening degree to adjust the flow of the test water flowing through the proportional-integral two-way valve. It should be noted that the flow regulating device 600 can also use other components to regulate the flow, which cannot be regarded as a limitation of the present application.

[0069] The measured machine water pump 400 is controlled based on PID. Before testing, the target flow is set. The temperature difference between the water inlet temperature at the water pump outlet and the water outlet temperature at the water tank inlet and the flow can reflect the heating or cooling performance of the tested machine 100. It should be noted that the PID control principle is a prior art known to those skilled in the art, and will not be described here.

[0070] The air energy laboratory mixed water tank system according to the embodiment of the present application can simulate the water inlet temperature in the environment by drawing the test water from the mixed water tank 200 to the tested machine 100 through the water pump 400 of the tested machine, so as to perform the refrigeration test or the heating test on the tested machine 100. The test water after the refrigeration or heating of the tested machine 100 is output from the test water outlet to the water outlet pipe section 520 and then input to the mixed water tank 200 through the first branch pipe outlet and to the flow adjusting device 600 through the second branch pipe outlet. The temperature detecting device can detect the water inlet temperature at the water pump outlet and the water outlet temperature at the water tank inlet, and the control system adjusts the working mode of the working condition machine and the opening of the flow adjusting device 600 based on the water inlet temperature, the water outlet temperature, the preset target temperature and the test mode of the tested machine 100. The test water in the mixed water tank 200 is output to the mixed pipe section 530 after the heating or refrigeration by the working condition machine, mixed with the test water after the refrigeration or heating of the tested machine 100 output from the flow adjusting device 600 in the mixed pipe section 530, reaches the required water inlet temperature for the next time, and is then input to the water pump 400 of the tested machine. Compared with the traditional air energy laboratory which directly heats or cools the test water in the mixed water tank 200 to the required water inlet temperature by the working condition machine, the air energy laboratory mixed water tank system according to the embodiment of the present application divides the test water into two paths, reduces the amount of water that needs to be heated or cooled by the working condition machine, recovers part of the test water after the refrigeration or heating of the tested machine 100 to offset the heat or cold of the working condition machine, can quickly reach the required water inlet temperature, has low test cost and high energy efficiency. The air energy laboratory mixed water tank system according to the embodiment of the present application can shorten the test time, reduce the test cost and improve the energy efficiency.

[0071] In some embodiments of the present application, reference is made to Figure 1 and Figure 2 The mixed water tank 200 is internally provided with a mixing structure for mixing and stirring the test water. When the refrigeration and heating performance test of the tested machine 100 is performed, the test water in the mixed water tank 200 is output to the tested machine 100 for refrigeration or heating and then returns to the mixed water tank 200. At this time, the mixed water tank 200 contains mixed test water with two water temperatures. If the mixed test water with two water temperatures is not mixed uniformly, the water outlet temperature will be unstable, the control system cannot accurately control the working mode of the working condition machine and the opening of the flow adjusting device 600 according to the accurate water inlet temperature, and the water inlet temperature cannot be accurately adjusted to the target temperature. The mixing structure can fully mix and stir the test water in the mixed water tank 200, thereby improving the control accuracy. The mixing structure can be a stirrer or other structure for auxiliary stirring. The specific mixing structure is not limited herein and should not be regarded as a limitation on the present application.

[0072] In some embodiments of the present application, with reference to Figure 1 and Figure 2 The mixing structure comprises a plurality of baffles 210, which are respectively arranged in an interleaved manner on the opposite two side walls inside the mixing water tank 200, and each baffle 210 is arranged at an angle with the side wall inside the mixing water tank 200. In the working process of the air energy laboratory mixing water tank system of the embodiments of the present application, the test water circulates in the air energy laboratory mixing water tank system and the tested machine 100, the plurality of baffles 210 are respectively arranged in an interleaved manner on the opposite two side walls inside the mixing water tank 200, which divides the mixing water tank 200 into a plurality of mixing zones, and the test water after being cooled or heated by the tested machine 100 circulates to the water inlet of the water tank and enters the mixing water tank 200, and then passes through the plurality of mixing zones in an interleaved manner. The test water is fully mixed by colliding with the plurality of baffles 210 and the side wall inside the mixing water tank 200, so that the test water with two water temperatures in the mixing water tank 200 is mixed into the same water temperature, which can ensure that the test water temperature out of the water outlet of the water tank is stable.

[0073] In some embodiments, each baffle 210 is perpendicular to the side wall inside the mixing water tank 200, which can make the collision of the test water with the plurality of baffles 210 and the side wall inside the mixing water tank 200 more violent, and the mixing effect is better. It should be noted that the angle of each baffle 210 with the side wall inside the mixing water tank 200 is not limited here, as long as it can play a mixing and stirring role on the test water. The arrangement mode of the plurality of baffles 210 can also be a circular labyrinth type or other arrangement modes, and the mixing structure can also adopt other structures, as long as it can play a mixing and stirring role on the test water, which cannot be regarded as a limitation of the present application.

[0074] In some embodiments of the present application, with reference to Figure 1The temperature detection device includes a water inlet temperature sensor S1, a water outlet temperature sensor S2 and a plurality of intermediate temperature sensors S3, S4 and S5, all of which are electrically connected to the control system. The water inlet temperature sensor S1 is arranged at the water outlet of the water pump; the water outlet temperature sensor S2 is arranged at the water inlet of the water tank; and the plurality of intermediate temperature sensors S3, S4 and S5 are respectively arranged between two adjacent baffles 210. When the refrigeration and heating performance test is performed on the tested machine 100, the test water in the mixed water tank 200 is output to the tested machine 100 for refrigeration or heating and then returns to the mixed water tank 200. At this time, the mixed water tank 200 contains mixed test water of two temperatures. If the mixed test water of two temperatures in the mixed water tank 200 is not mixed uniformly, the outlet water temperature will be unstable. The plurality of intermediate temperature sensors S3, S4 and S5 are arranged one by one in the plurality of mixing zones formed by the plurality of baffles 210, so that the mixing condition of the test water in the mixed water tank 200 can be accurately known. When the difference between the highest temperature and the lowest temperature detected by the plurality of intermediate temperature sensors S3, S4 and S5 is less than a preset mixing threshold, it indicates that the test water in the mixed water tank 200 has been uniformly mixed, and at this time, the working condition water pump 311 can be controlled to maintain the current speed. If the difference between the highest temperature and the lowest temperature detected by the plurality of intermediate temperature sensors S3, S4 and S5 is greater than the preset mixing threshold, it indicates that the test water in the mixed water tank 200 has not been uniformly mixed, and at this time, the working condition water pump 311 is controlled to increase the speed to increase the mixing intensity of the test water in the mixed water tank 200, so that the test water in the mixed water tank 200 is quickly and uniformly mixed. It should be noted that the mixing threshold needs to be set according to the actual situation, which is not limited here.

[0075] In some embodiments of the present application, with reference to Figures 1 to 3 The air energy laboratory mixed water tank system further includes an energy recovery device for storing heat or cold of the test water and providing the heat or cold to the test water. In some embodiments, taking the example that the last tested machine 100 performs refrigeration test and the current tested machine 100 performs heating test, the test water after being cooled by the last tested machine 100 enters the mixed water tank 200, the energy recovery device recovers and stores the cold of the test water, and before the current heating test of the tested machine 100 is performed, the water inlet temperature of the test water entering the tested machine 100 needs to be adjusted to be low by the working condition refrigeration machine. At this time, the cold recovered in the last test process is provided to the test water in the mixed water tank 200 by the energy recovery device, which can reduce the cold amount that the working condition machine needs to refrigerate, thereby reducing the energy consumption of the working condition machine and reducing the operating cost. The specific structure and energy recovery medium of the energy recovery device can be selected according to actual needs, which cannot be regarded as a limitation of the application.

[0076] In some embodiments of the present application, with reference to Figures 1 to 3The mixed water tank 200 also has a mixed circulating water port, and the mixed water tank 200 is internally provided with a mixed heat exchange device 220, and the mixed heat exchange device 220 has a mixed heat exchange port; the energy recovery device comprises an energy storage water tank 700, an energy storage heat exchange device 710, an energy recovery pipeline structure, a circulating water pump 811 and an on-off valve 821. The energy storage water tank 700 has an energy storage circulating water port, and the energy storage water tank 700 is used for storing energy recovery water; the energy storage heat exchange device 710 is arranged in the energy storage water tank 700, and the energy storage heat exchange device 710 has an energy storage heat exchange port; the energy storage heat exchange device 710 and the mixed heat exchange device 220 both have heat exchange medium inside; the energy recovery pipeline structure comprises a circulating pipe section 810 and a heat exchange pipe section 820, the circulating pipe section 810 is arranged between the mixed circulating water port and the energy storage circulating water port, and the heat exchange pipe section 820 is arranged between the energy storage heat exchange device 710 and the mixed heat exchange device 220; the circulating water pump 811 is arranged on the circulating pipe section 810 and is electrically connected with the control system, and the circulating water pump 811 is used for driving the heat exchange medium inside the energy storage heat exchange device 710 and the mixed heat exchange device 220 to flow, so as to transfer heat or cold to the test water and the energy recovery water; and the on-off valve 821 is arranged on the heat exchange pipe section 820 and is electrically connected with the control system.

[0077] The on-off valve 821 can adopt an electromagnetic valve two-way valve, or can adopt other electrically-driven on-off structures, and cannot be regarded as a limitation on the present application. In some embodiments, the energy recovery device further comprises an energy storage heat exchange temperature sensor and a mixed heat exchange temperature sensor, the energy storage heat exchange temperature sensor is arranged in the energy storage water tank 700 and is arranged close to the energy storage heat exchange device 710, and the mixed heat exchange temperature sensor is arranged in the mixed water tank 200 and is arranged close to the mixed heat exchange device 220.

[0078] The last tested machine 100 is a refrigeration test, and the current tested machine 100 is a heating test. The test water after the last tested machine 100 is cooled enters the mixed water tank 200. When the temperature difference detected by the energy storage heat exchange temperature sensor and the mixed heat exchange temperature sensor is greater than the preset recovery threshold, the circulating water pump 811 is started, and the electromagnetic valve two-way valve is opened to recover the cold energy of the test water in the mixed water tank 200 to the energy storage heat exchange device 710 through the mixed heat exchange device 220, and the recovered cold energy of the test water is conducted to the energy recovery water in the energy storage water tank 700 through the energy storage heat exchange device 710 to store the cold energy. When the temperature difference detected by the energy storage heat exchange temperature sensor and the mixed heat exchange temperature sensor is less than the preset recovery threshold, the circulating water pump 811 and the electromagnetic valve two-way valve are closed in turn. Before the current heating test of the tested machine 100 is performed, the water temperature entering the tested machine 100 needs to be adjusted to be low through the working condition refrigeration. At this time, the cold energy recovered in the last test process is provided to the test water in the mixed water tank 200, which can reduce the cold energy required for refrigeration of the working condition machine, thereby reducing the energy consumption of the working condition machine and reducing the operating cost. It should be noted that the size of the recovery threshold needs to be determined according to the actual situation, and is not limited here.

[0079] In some embodiments of the present application, with reference to Figure 1 and Figure 2 The mixed heat exchange device 220 and the energy storage heat exchange device 710 both use a coil. The coil is filled with heat exchange medium, and the heat exchange medium is water. When the water temperature of the test water in the mixed water tank 200 rises or falls, the temperature of the heat exchange medium in the coil in the mixed water tank 200 will also rise or fall through the heat conductivity of the coil. At this time, the circulating water pump 811 and the electromagnetic valve two-way valve are started in turn. The circulating water pump 811 makes the heat exchange medium in the coil in the mixed water tank 200 and the heat exchange medium in the coil in the energy storage water tank 700 flow, so as to transfer the cold energy or heat energy of the test water in the mixed water tank 200 to the energy recovery water in the energy storage water tank 700 for next use. The coil is stacked by multiple layers of heat exchange pipes, has good heat conductivity and fast heat conduction speed, and can quickly recover energy. It should be noted that the mixed heat exchange device 220 and the energy storage heat exchange device 710 can also use other forms of heat exchange structure, which cannot be regarded as a limitation of the present application.

[0080] After the above description, in order to better reflect the advantages of the air energy laboratory mixed water tank system of the embodiments of the present application, a specific example is described below.

[0081] In some embodiments, taking the heating test of the tested machine 100 as an example, after the control system controls the flow of the water pump 400 of the tested machine 100 to reach the target flow and stabilize, the tested machine 100 is started. At this time, the inlet water temperature at the outlet of the water pump is T1, the outlet water temperature at the inlet of the water tank is T2, and the target temperature of the test inlet of the tested machine 100 is Tc, and when the inlet water temperature stabilizes, Tc=T1. Taking Tc as the target to start adjusting, the water pump 400 of the tested machine 100 transports the test water from the water pump inlet to the test inlet of the tested machine 100, and the test water heated by the tested machine 100 reaches the test outlet and flows to the outlet pipe section 520, and then is input to the mixing water tank 200 through the first branch pipe opening and is input to the proportional integral two-way valve through the second branch pipe opening. At this time, the outlet water temperature T2 is continuously checked, when T2≥Tc-5℃, the working condition machine starts the refrigeration mode, when T2<Tc-10℃, the working condition machine stops the refrigeration mode, and at the same time, the difference between the highest temperature and the lowest temperature of the plurality of intermediate temperature sensors S3, S4, S5 is continuously checked during the adjusting process, when the difference between the highest temperature and the lowest temperature is >1℃, the rotating speed of the working condition water pump 311 is adjusted to increase, so as to increase the mixing degree of the test water in the mixing water tank 200; when the difference between the highest temperature and the lowest temperature of the plurality of intermediate temperature sensors S3, S4, S5 is ≤1℃, the working condition water pump 311 is controlled to keep the current rotating speed. When the difference between the highest temperature and the lowest temperature of the plurality of intermediate temperature sensors S3, S4, S5 is ≤1℃, and the water temperature at the outlet of the water tank stabilizes, at this time, the target temperature Tc and the inlet water temperature T1 are compared, when Tc>T1+0.3℃, the proportional integral two-way valve is opened based on the PID control, and a part of the test water heated by the tested machine 100 is recovered, so that the temperature difference between the inlet water temperature T1 and the target temperature Tc can be quickly changed to the preset normal range. When Tc=T1±0.1℃, the proportional integral two-way valve is controlled to keep the current opening degree.

[0082] It should be noted that when the tested machine 100 performs the refrigeration test, the control principle is similar, which is not described here.

[0083] Compared with the traditional air energy laboratory which directly heats or cools the test water in the mixing water tank 200 to the required inlet water temperature by the working condition machine, the air energy laboratory mixing water tank system of the embodiment of the present application divides the test water into two paths, reduces the water amount required to be heated / cooled by the working condition machine, and recovers a part of the test water after being heated / cooled by the tested machine 100 to offset the heat / cooling capacity of the working condition machine, so that the required inlet water temperature can be quickly reached, the test cost is low, and the energy efficiency is high.

[0084] The following will be described in combination with Figures 1 to 5 The control method of the air energy laboratory mixing water tank system of the second aspect embodiment of the present application will be described clearly and completely, and obviously, the following described embodiments are part of the embodiments of the present application, not all the embodiments.

[0085] The control method of the air energy laboratory mixed water tank system according to the second aspect of the embodiment of the present application is applied to the air energy laboratory mixed water tank system of the first aspect of the embodiment, and the control method comprises the following steps:

[0086] The water inlet temperature at the water pump outlet and the water outlet temperature at the water tank inlet are obtained, and the test mode of the tested machine 100 is determined, the test mode comprising a refrigeration test and a heating test;

[0087] A water temperature adjustment strategy is executed according to the water inlet temperature, the water outlet temperature, a preset target temperature and the test mode, the water temperature adjustment strategy comprising a refrigeration adjustment strategy and a heating adjustment strategy;

[0088] The refrigeration adjustment strategy comprises the following steps:

[0089] The working condition machine is adjusted to the refrigeration mode according to the water inlet temperature, the water outlet temperature and the target temperature, until the water outlet temperature is less than a preset refrigeration temperature threshold and the water inlet temperature is less than the target temperature, and the working condition machine is turned off; the flow regulating device 600 is controlled to be opened according to the water inlet temperature and the target temperature, until the temperature difference between the water inlet temperature and the target temperature is within a preset normal range; the refrigeration temperature threshold is less than the target temperature;

[0090] The heating adjustment strategy comprises the following steps:

[0091] The working condition machine is adjusted to the heating mode according to the water inlet temperature, the water outlet temperature and the target temperature, until the water outlet temperature is greater than a preset heating temperature threshold and the water inlet temperature is greater than the target temperature, and the working condition machine is turned off; the flow regulating device 600 is controlled to be opened according to the water inlet temperature and the target temperature, until the temperature difference between the water inlet temperature and the target temperature is within a preset normal range; the heating temperature threshold is greater than the target temperature.

[0092] When the tested machine 100 performs the heating test, the control system controls the flow of the measured machine water pump 400 to reach the target flow and stabilize, starts the tested machine 100, the measured machine water pump 400 transports the test water from the water pump inlet to the test water inlet of the tested machine 100, the tested machine 100 heats the test water to reach the test water outlet, flows to the water outlet pipe section 520, and inputs the mixed water tank 200 through the first branch pipe opening and the proportional integral two-way valve through the second branch pipe opening, at this time, the working condition machine is controlled to be opened in the refrigeration mode, and the water outlet temperature at the water tank inlet is continuously checked, when the water outlet temperature is less than a preset refrigeration temperature threshold and the water inlet temperature is less than the target temperature, the working condition machine is controlled to be closed in the refrigeration mode, and the proportional integral two-way valve is opened based on the PID control, a part of the test water heated by the tested machine 100 is recovered, so that the temperature difference between the water inlet temperature and the target temperature is quickly changed to within a preset normal range. When the water inlet temperature is stable, the proportional integral two-way valve is controlled to maintain the present opening degree.

[0093] When the refrigeration test is performed on the tested machine 100, the control system controls the flow of the water pump 400 of the tested machine to reach the target flow and stabilize, and then starts the tested machine 100. The water pump 400 of the tested machine transports the test water from the water pump inlet to the test inlet of the tested machine 100. The test water is cooled by the tested machine 100 and reaches the test outlet to flow to the outlet pipe section 520, and is input to the mixed water tank 200 through the first branch pipe opening and is input to the proportional integral two-way valve through the second branch pipe opening. At this time, the control condition machine opens the heating mode, and continuously checks the outlet water temperature at the water tank inlet. When the outlet water temperature is greater than the preset heating temperature threshold and the inlet water temperature is greater than the target temperature, the control condition machine closes the heating mode, and opens the proportional integral two-way valve based on the PID control. A part of the test water cooled by the tested machine 100 is recovered to quickly change the temperature difference between the inlet water temperature and the target temperature to the preset normal range. When the inlet water temperature stabilizes, the proportional integral two-way valve is kept at the present opening degree.

[0094] By dividing the test water into two paths, reducing the amount of water that needs to be heated / cool by the condition machine, and recovering a part of the test water after the tested machine 100 is cooled / heated to offset the heat / cold of the condition machine, the inlet water temperature required for simulation can be quickly reached, and the test cost is low and the energy efficiency is high.

[0095] According to the control method of the air energy laboratory mixed water tank system, when the test mode of the tested machine 100 is heating test, the test water entering the test inlet needs to be cooled to the preset target temperature. By adjusting the condition machine to the cooling mode, the test water in the mixed water tank 200 is cooled until the outlet water temperature is less than the preset cooling temperature threshold and the inlet water temperature is less than the target temperature. The condition machine is closed, and the opening degree of the flow adjusting device 600 is adjusted based on the PID according to the inlet water temperature and the target temperature. The test water output from the mixed water tank 200 is mixed with the test water output from the flow adjusting device 600. The temperature difference between the cooled test water and the target temperature is offset by the heat of the test water that is not cooled, until the temperature difference between the inlet water temperature and the target temperature is within the preset normal range. When the test mode of the tested machine 100 is cooling test, the principle is similar. By dividing the test water into two paths, reducing the amount of water that needs to be heated / cool by the condition machine, and recovering a part of the test water after the tested machine 100 is cooled / heated to offset the heat / cold of the condition machine, the inlet water temperature required for simulation can be quickly reached, and the test cost is low and the energy efficiency is high. The control method of the embodiment of the present application can shorten the test time, reduce the test cost, and improve the energy efficiency.

[0096] In some embodiments of the present application, reference is made to Figure 5According to the water inlet temperature, the water outlet temperature, the preset target temperature and the test mode, a water temperature adjustment strategy is performed, including the following steps:

[0097] If the test mode of the tested machine 100 is heating test, a cooling adjustment strategy is performed.

[0098] If the test mode of the tested machine 100 is cooling test, a heating adjustment strategy is performed.

[0099] When the tested machine 100 is in heating test, the water temperature of the test water output from the test water outlet to the mixing water tank 200 will rise, and the test water in the mixing water tank 200 needs to be cooled to the water outlet temperature less than the preset cooling temperature threshold and the water inlet temperature less than the target temperature, and the flow regulating device 600 is controlled to open, and a part of the test water after heating by the tested machine 100 is recovered to offset the cooling capacity of the working condition machine, until the water inlet temperature is reduced to the temperature difference between the water inlet temperature and the target temperature within the preset normal range, to simulate the water inlet temperature in the environment, and the heating performance of the tested machine 100 is judged by the water inlet temperature, the water outlet temperature and the flow of the test water input into the tested machine 100.

[0100] When the tested machine 100 is in cooling test, the water temperature of the test water output from the test water outlet to the mixing water tank 200 will drop,

[0101] The test water in the mixing water tank 200 needs to be heated to the water outlet temperature greater than the preset cooling temperature threshold and the water inlet temperature greater than the target temperature, and the flow regulating device 600 is controlled to open, and a part of the test water after cooling by the tested machine 100 is recovered to offset the heating capacity of the working condition machine, until the water inlet temperature is raised to the temperature difference between the water inlet temperature and the target temperature within the preset normal range, to simulate the water inlet temperature in the environment, and the cooling performance of the tested machine 100 is judged by the water inlet temperature, the water outlet temperature and the flow of the test water input into the tested machine 100.

[0102] The test water circulates in the air energy laboratory mixing water tank system and the tested machine 100 in the embodiment of the present application to perform multiple tests, which can achieve the purpose of air energy laboratory test.

[0103] In addition, the control system of the embodiment of the present application includes a memory, a processor and a computer program stored on the memory and executable on the processor. The processor and the memory can be connected by a bus or other means.

[0104] The memory, as a non-transitory computer readable storage medium, can be used to store non-transitory software programs and non-transitory computer executable programs. In addition, the memory can include high-speed random access memory, and can also include non-transitory memory, such as at least one magnetic disk storage device, a flash memory device, or other non-transitory solid-state memory device. In some embodiments, the memory can optionally include a memory that is remotely arranged relative to the processor, and these remote memories can be connected to the processor through a network. Examples of the above-mentioned network include, but are not limited to, the Internet, an intranet, a local area network, a mobile communication network, and a combination thereof.

[0105] The non-transitory software programs and instructions required to implement the control method of the above-mentioned embodiments are stored in the memory, and when executed by the processor, the control method in the above-mentioned embodiments is executed.

[0106] The device embodiments described above are only schematic, and units described as separate components can or can not be physically separate, that is, can be located in one place, or can be distributed to multiple network units. Part or all of the modules can be selected according to actual needs to achieve the purpose of the present embodiment scheme.

[0107] The third aspect embodiment of the present application also provides a computer readable storage medium, which stores computer executable instructions. The computer executable instructions are executed by a processor or a controller, for example, by a processor in the above-mentioned control system, so that the above-mentioned processor executes the control method in the above-mentioned embodiments.

[0108] As will be appreciated by one of ordinary skill in the art, all or some of the steps, systems, and techniques disclosed herein can be embodied in software, firmware, hardware, or any suitable combination thereof. Some or all of the physical components can be implemented as software executed by a processor, such as a central processing unit, a digital signal processor, or a microprocessor, or as hardware, or as an integrated circuit, such as an application- specific integrated circuit. Such software can be distributed on computer readable media, which can comprise computer storage media (or non-transitory media), and communication media (or transitory media). As will be appreciated by one of ordinary skill in the art, the term computer storage media includes all physical and tangible computer storage media, such as a volatile and non-volatile, removable and non-removable media implemented in any method or technology for storage of information such as computer readable instructions, data structures, program modules or other data. Computer storage media includes, but is not limited to, RAM, ROM, EEPROM, flash memory or other memory technology, CD-ROM, digital versatile disks (DVD) or other optical disk storage, magnetic cassettes, magnetic tape, magnetic disk storage or other magnetic storage devices, or any other medium which can be used to store the desired information and which can be accessed by a computer. Further, as will be appreciated by one skilled in the art, communication media typically embodies computer readable instructions, data structures, program modules or other data in a modulated data signal such as a carrier wave or other transport mechanism and includes any information delivery media.

[0109] The above detailed description of the embodiments of the present application has been presented for the purposes of illustration and description. It is not intended to be exhaustive or to limit the application to the precise form disclosed. Many modifications and variations are possible in light of this disclosure. It is intended that the scope of the application be limited not with this detailed description, but rather by the claims appended hereto.

Claims

1. An air-to-water laboratory hybrid water tank system applied to a tested machine, the tested machine having a test water inlet and a test water outlet, the tested machine having a heating function and a cooling function, characterized in that, The air-source laboratory mixing tank system includes: A mixing water tank has a mixing circulation inlet, a water tank outlet, and a water tank inlet, and is used to store test water; the mixing water tank is equipped with a mixing heat exchange device with a mixing heat exchange port; the mixing water tank is also equipped with a mixing structure for mixing and stirring the test water. A working unit is used to provide heat or cold for the test water; The test machine water pump has a water pump inlet and a water pump outlet. The test machine water pump is used to draw the test water from the mixing tank and supply it to the test machine. The circulating pipeline structure includes a water supply section, a water outlet section, and a mixing section. The water supply section is connected between the water pump outlet and the test inlet. The water outlet section has an outlet, a first branch outlet, and a second branch outlet. The outlet is connected to the test outlet, and the first branch outlet is connected to the water tank inlet. The mixing section has a first mixing outlet, a second mixing outlet, and a third mixing outlet. The first mixing outlet is connected to the water tank outlet, the second mixing outlet is connected to the water pump inlet, and the third mixing outlet is connected to the second branch outlet. A flow regulating device is disposed between the third mixing port and the second branch port, and the flow regulating device is used to regulate the outflow of water to the third mixing port; A temperature detection device is used to detect the inlet water temperature of the tested machine at the outlet of the water pump and the outlet water temperature of the tested machine at the inlet of the water tank. The control system is electrically connected to the working machine, the water pump of the machine under test, the flow regulating device, and the temperature detection device; An energy recovery device is used to store the heat or cold energy of the test water and to provide the heat or cold energy to the test water; The energy recovery device includes: An energy storage water tank, having an energy storage circulation inlet, is used to store energy-recovered water. An energy storage heat exchange device is located inside the energy storage water tank. The energy storage heat exchange device has an energy storage heat exchange port. Both the energy storage heat exchange device and the hybrid heat exchange device contain a heat exchange medium. An energy recovery pipeline structure includes a circulation pipe section and a heat exchange pipe section. The circulation pipe section is located between the mixing circulation inlet and the energy storage circulation inlet, and the heat exchange pipe section is located between the energy storage heat exchange device and the mixing heat exchange device. A circulating water pump is installed on the circulating pipe section and electrically connected to the control system. The circulating water pump is used to drive the flow of the heat exchange medium inside the energy storage heat exchange device and the mixing heat exchange device to transfer heat or cold to the test water and the energy recovery water. A switching valve is installed on the heat exchange tube section and electrically connected to the control system.

2. The air-to-water laboratory hybrid water tank system of claim 1, wherein, The mixing structure includes multiple baffles, which are staggered on opposite side walls inside the mixing tank, and each baffle is arranged at an angle to the side wall inside the mixing tank.

3. The air-to-water laboratory hybrid water tank system of claim 2, wherein, The temperature detection device includes components that are electrically connected to the control system: An inlet water temperature sensor is located at the outlet of the water pump. A water temperature sensor is located at the water inlet of the water tank; Multiple intermediate temperature sensors are respectively located between two adjacent baffles.

4. The air-to-water laboratory hybrid water tank system of claim 1, wherein, Both the hybrid heat exchanger and the energy storage heat exchanger use coils.

5. A control method of an air-to-water laboratory hybrid water tank system, characterized in that, The control method, applied to the air-source laboratory mixing tank system as described in any one of claims 1 to 4, comprises the following steps: The test unit obtains the inlet water temperature of the tested machine at the outlet of the water pump and the outlet water temperature of the tested machine at the inlet of the water tank, and determines the test mode of the tested machine, which includes cooling test and heating test. A water temperature adjustment strategy is executed based on the inlet water temperature of the tested machine, the outlet water temperature of the tested machine, the preset target temperature, and the test mode. The water temperature adjustment strategy includes a cooling adjustment strategy and a heating adjustment strategy. The cooling adjustment strategy includes the following steps: The operating unit is adjusted to cooling mode based on the inlet water temperature, outlet water temperature, and target temperature of the tested unit until the outlet water temperature is lower than a preset cooling temperature threshold and the inlet water temperature is lower than the target temperature, at which point the operating unit is turned off. The flow regulation device is then activated based on the inlet water temperature and target temperature until the temperature difference between the inlet water temperature and the target temperature is within a preset normal range, and the cooling temperature threshold is lower than the target temperature. The heating adjustment strategy includes the following steps: The operating unit is adjusted to heating mode based on the inlet water temperature, outlet water temperature, and target temperature of the tested unit until the outlet water temperature exceeds a preset heating temperature threshold and the inlet water temperature exceeds the target temperature, at which point the operating unit is turned off. The flow regulation device is then activated based on the inlet water temperature and target temperature until the temperature difference between the inlet water temperature and the target temperature is within a preset normal range; the heating temperature threshold is greater than the target temperature.

6. The control method according to claim 5, characterized by The step of executing a water temperature adjustment strategy based on the inlet water temperature of the tested machine, the outlet water temperature of the tested machine, a preset target temperature, and the test mode includes the following steps: If the test mode of the tested machine is heating test, execute the cooling adjustment strategy; If the test mode of the tested machine is a cooling test, the heating adjustment strategy is executed.

7. A computer-readable storage medium storing computer-executable instructions, characterized in that, The computer-executable instructions are used to perform the control method as described in claim 5 or 6.

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