A device and method for uninterrupted shipboard cooling

Abstract

The present invention relates to the technical field of cooling energy saving for shipboard data machine rooms, and particularly to a device and method for uninterrupted shipboard cooling. The device includes a flow mixing temperature control component, a liquid storage tank, a cold storage liquid storage tank, and a circulation pump; the first water inlet of the flow mixing temperature control component is connected to the liquid storage tank for cooling the load with the coolant in the liquid storage tank; the second water inlet of the flow mixing temperature control component is connected to the cold storage liquid storage tank unit for cooling the load with the coolant in the cold storage liquid storage tank; the circulation pump is arranged at the water outlet of the flow mixing temperature control component to provide the power for the coolant circulation. The present invention preferentially uses the infinite external cooling water for heat exchange with the load, greatly saving the energy consumption of the ship.

Description

Technical Field

[0001] The present invention relates to the technical field of cooling energy saving for shipboard data computer rooms, and particularly to a device and method for uninterrupted shipboard cooling supply. Background Art

[0002] In recent years, more and more ship information systems have set up central data computer rooms to serve as private clouds for ships. As the central hub of the ship information system, the data computer room undertakes the important task of the normal operation of the entire information system. Among them, the cooling supply of the data computer room is the basic condition for the normal operation of the entire public computing service system. With the development of computer technology, the functions of computing services, storage, and network services are becoming stronger and stronger, the integration degree is getting higher and higher, and the power and power density are getting larger and larger, which puts forward higher requirements for heat dissipation methods and heat dissipation equipment.

[0003] The equipment inside the shipboard data center generates a large amount of heat, and equipment cooling is required throughout the year. To ensure the safe and stable operation of the computer room equipment, the cooling system needs to operate uninterruptedly throughout the year. For traditional data center cooling solutions, most use precision air conditioners in the computer room to cool the ambient temperature. In this design method, the compressor of the unit runs all day long, with low refrigeration capacity, high energy consumption, low efficiency, and poor energy saving performance. In addition, the refrigeration capacity in the data center is getting larger and larger. Once a power failure occurs, although the server can continue to run relying on the UPS system, since the refrigeration equipment stops running, the temperature in the computer room will rise rapidly, still causing the IT equipment to overheat, and then some resources will automatically shut down, affecting the service. More seriously, sometimes it will even cause the IT equipment to be damaged. Therefore, the continuous cooling of the data center is a major issue related to the safety and reliability of the data center. In addition, ships basically operate on the water surface and can obtain an unlimited amount of normal temperature cooling water for most of the time. Reasonably utilizing this resource can reduce the energy consumption of heat dissipation.

[0004] Therefore, in the design of shipboard data centers, overcoming the defects of the existing technology is an urgent problem to be solved in this technical field. Summary of the Invention

[0005] The technical problem to be solved by the present invention is how to overcome the problems in the existing technology, such as low refrigeration capacity, high energy consumption, low efficiency, and difficulty in ensuring that the data computer room or load of the ship can be continuously maintained within a suitable temperature range.

[0006] The embodiments of the present invention adopt the following technical solutions:

[0007] In a first aspect, the present invention provides a device for uninterrupted shipboard cooling supply, including a mixing flow temperature control component, a liquid storage tank, a cold storage liquid storage tank, and a circulation pump;

[0008] The first water inlet of the flow mixing temperature control component is connected to the liquid storage tank, and is used to cool the load with the coolant in the liquid storage tank;

[0009] The second water inlet of the flow mixing temperature control component is connected to the cold storage liquid storage tank unit, and is used to cool the load with the coolant in the cold storage liquid storage tank;

[0010] The circulation pump is arranged at the water outlet of the flow mixing temperature control component and is used to provide the power for the coolant circulation;

[0011] The coolant in the liquid storage tank flows through the first water inlet to the flow mixing temperature control component, flows through the circulation pump through the water outlet of the flow mixing temperature control component, then flows to the load, absorbs the heat of the load and then flows back into the liquid storage tank, forming the first circulation loop of the coolant;

[0012] The coolant in the cold storage liquid storage tank flows through the second water inlet to the flow mixing temperature control component, then flows through the circulation pump through the water outlet of the flow mixing temperature control component, then flows to the load, absorbs the heat of the load and then flows back into the cold storage liquid storage tank, forming the second circulation loop of the coolant.

[0013] Preferably, a heat exchanger is further included, and the heat exchanger is used for heat exchange between the coolant in the liquid storage tank and external cooling water.

[0014] Preferably, the cold storage liquid storage tank is connected to a refrigeration unit, and the refrigeration unit is used to convert the cold storage material with low cold density into the cold storage material with high cold density and store it in the cold storage liquid storage tank.

[0015] Preferably, the flow mixing temperature control component includes an intelligent control module and a proportional integral valve. The intelligent control module is used to receive signals and issue instructions, and the proportional integral valve is electrically connected to the intelligent control module and is used to adjust the water inflow of the first water inlet and the second water inlet.

[0016] Preferably, a first temperature sensor, a second temperature sensor and a third temperature sensor are further included, and the first temperature sensor, the second temperature sensor and the third temperature sensor are respectively electrically connected to the intelligent control module. The first temperature sensor is used to measure the temperature of the coolant at the first water inlet, the second temperature sensor is used to measure the temperature of the coolant at the water outlet of the flow mixing temperature control component, and the third temperature sensor is used to measure the temperature of the external cooling water.

[0017] Preferably, a flow meter is further included, and the flow meter is electrically connected to the intelligent control module. The flow meter is used to monitor the flow rate of the coolant at the water outlet of the flow mixing temperature control component.

[0018] Preferably, phase change cold storage balls are arranged in the cold storage liquid storage tank and are used to store the cold storage material that generates phase change through compression by a compressor.

[0019] In a second aspect, the present invention further provides a method for uninterrupted shipboard cooling. The intelligent control module of the flow mixing temperature control component receives the monitored temperature of the temperature sensor and the temperature parameters of the load, and adjusts the liquid inflow rate of the coolant in the liquid storage tank and the cold storage liquid storage tank into the load, as well as the flow rate of the internal coolant, through the proportional-integral valve. By adjusting the circulation pump, heat exchanger, refrigeration unit, and proportional-integral valve, uninterrupted cooling of the load is achieved. The specific method includes:

[0020] Based on the temperature range of the load in the normal working state, the relationship between the threshold temperature of the coolant at the outlet of the flow mixing temperature control component and the flow rate of the coolant at the outlet of the flow mixing temperature control component is obtained under the condition of maintaining the normal working temperature of the load;

[0021] Measure the flow rate of the coolant at the inlet of the load in the current state, and based on the relationship between the threshold temperature of the coolant at the outlet of the flow mixing temperature control component and the flow rate of the coolant at the outlet of the flow mixing temperature control component, obtain the threshold temperature of the coolant at the outlet of the flow mixing temperature control component in the current state;

[0022] Compare the relationship between the temperature of the coolant at the outlet of the flow mixing temperature control component and the upper and lower limits of the threshold temperature, the temperature of the external cooling water and the coolant at the heat exchanger, and the temperature of the coolant at the first inlet of the flow mixing temperature control component and the temperature of the coolant at the outlet of the flow mixing temperature control component;

[0023] Through the comparison of temperatures, the proportional-integral valve adjusts the liquid inflow rates of the first inlet and the second inlet, the power of the circulation pump, and the flow rate of the external cooling water of the heat exchanger to ensure that the temperature of the load is within the temperature range of the normal working state.

[0024] Preferably, the threshold temperature is the temperature of the coolant at the outlet of the flow mixing temperature control component when the load temperature is maintained normal at the current flow rate. The relationship between the temperature of the coolant at the outlet of the flow mixing temperature control component and the upper and lower limits of the threshold temperature specifically includes three cases: the temperature of the coolant at the outlet of the flow mixing temperature control component is lower than the lower limit of the threshold temperature, the lower limit of the threshold temperature is not higher than the temperature of the coolant at the outlet of the flow mixing temperature control component and not higher than the upper limit of the threshold temperature, and the temperature of the coolant at the outlet of the flow mixing temperature control component is higher than the upper limit of the threshold temperature.

[0025] Preferably, based on the comparison result of the temperatures, the corresponding adjustments to the proportional-integral valve, circulation pump, and heat exchanger specifically include:

[0026] When it is monitored that the temperature at the outlet of the flow mixing temperature control component is lower than the lower limit of the threshold temperature at the current flow rate, the temperature of the coolant at the first inlet is not lower than the temperature at the outlet of the flow mixing temperature control component, and the temperature of the external cooling water is not lower than the temperature of the coolant on the heat exchanger side, the intelligent control module issues an instruction to open the heat exchanger, increase the flow rate of the external cooling water, reduce the power of the circulation pump, control the proportional-integral valve to increase the liquid inflow rate of the first inlet, and reduce the liquid inflow rate of the second inlet;

[0027] When it is monitored that the temperature of the outlet of the mixing flow temperature control component is lower than the lower limit of the threshold temperature at the current flow rate, the temperature of the coolant at the first inlet is higher than the temperature of the outlet of the mixing flow temperature control component, and the temperature of the external cooling water is lower than the temperature of the coolant on the heat exchanger side, the intelligent control module issues an instruction to close the heat exchanger, reduce the power of the circulation pump, control the proportional-integral valve to increase the liquid inflow at the first inlet, and reduce the liquid inflow at the second inlet;

[0028] When it is monitored that the temperature of the outlet of the mixing flow temperature control component is lower than the lower limit of the threshold temperature at the current flow rate, the temperature of the coolant at the first inlet is lower than the temperature of the outlet of the mixing flow temperature control component, and the temperature of the external cooling water is higher than the temperature of the coolant on the heat exchanger side, the intelligent control module issues an instruction to open the heat exchanger, increase the flow rate of the external cooling water, reduce the power of the circulation pump, and the proportional-integral valve reduces the liquid inflow at the second inlet and reduces the liquid inflow at the first inlet;

[0029] When it is monitored that the temperature of the outlet of the mixing flow temperature control component is lower than the lower limit of the threshold temperature at the current flow rate, the temperature of the coolant at the first inlet is lower than the temperature of the outlet of the mixing flow temperature control component, and the temperature of the external cooling water is lower than the temperature of the coolant on the heat exchanger side, the intelligent control module issues an instruction to close the heat exchanger, reduce the power of the circulation pump, and the proportional-integral valve reduces the liquid inflow at the second inlet and reduces the liquid inflow at the first inlet;

[0030] When the lower limit of the threshold temperature is not higher than the monitored temperature of the outlet of the mixing flow temperature control component, and the monitored temperature of the outlet of the mixing flow temperature control component is not higher than the upper limit of the threshold temperature, the load temperature can be guaranteed to maintain the normal working state at this flow rate, and the current operating state of the equipment is maintained;

[0031] When it is monitored that the temperature of the outlet of the mixing flow temperature control component is higher than the upper limit of the threshold temperature at the current flow rate, the temperature of the coolant at the first inlet is higher than the temperature of the outlet of the mixing flow temperature control component, and the temperature of the external cooling water is higher than the temperature of the coolant on the heat exchanger side, the intelligent control module issues an instruction to close the heat exchanger, increase the power of the circulation pump, control the proportional-integral valve to increase the liquid inflow at the second inlet, and reduce the liquid inflow at the first inlet;

[0032] When it is monitored that the temperature of the outlet of the mixing flow temperature control component is higher than the upper limit of the threshold temperature at the current flow rate, the temperature of the coolant at the first inlet is higher than the temperature of the outlet of the mixing flow temperature control component, and the temperature of the external cooling water is lower than the temperature of the coolant on the heat exchanger side, the intelligent control module issues an instruction to open the heat exchanger, increase the flow rate of the external cooling water, increase the power of the circulation pump, control the proportional-integral valve to increase the liquid inflow at the second inlet, and reduce the liquid inflow at the first inlet;

[0033] When it is detected that the temperature of the outlet of the mixing flow temperature control component is higher than the upper limit of the threshold temperature at the current flow rate, the temperature of the coolant at the first inlet is not higher than the temperature of the outlet of the mixing flow temperature control component, and the temperature of the external cooling water is not lower than the temperature of the coolant on the side of the heat exchanger, the intelligent control module issues an instruction to close the heat exchanger, increase the power of the circulation pump, the proportional integral valve increases the liquid inflow of the second inlet, and reduces the liquid inflow of the first inlet;

[0034] When it is detected that the temperature of the outlet of the mixing flow temperature control component is higher than the upper limit of the threshold temperature at the current flow rate, the temperature of the coolant at the first inlet is not higher than the temperature of the outlet of the mixing flow temperature control component, and the temperature of the external cooling water is not higher than the temperature of the coolant on the side of the heat exchanger, the intelligent control module issues an instruction to open the heat exchanger, increase the flow rate of the external cooling water, increase the power of the circulation pump, the proportional integral valve increases the liquid inflow of the second inlet, and reduces the liquid inflow of the first inlet;

[0035] Among them, reducing the liquid inflow of the first inlet includes closing the first inlet, and reducing the liquid inflow of the second inlet includes closing the second inlet.

[0036] The present invention obtains the temperature range of the outlet of the mixing flow temperature control component at the current coolant flow rate through the current coolant flow rate in the current warship and the normal operating temperature range of the load; by adjusting the flow rate of the internal coolant, the flow rate of the external cooling water of the heat exchanger, and the proportional integral valve of the mixing flow temperature control component to control the liquid inflow of the coolant at the first inlet and the second inlet, so that the temperature of the outlet of the temperature control component is maintained at the threshold temperature, and further realizes the purpose of maintaining the load temperature within the normal operating temperature range. Description of the Drawings

[0037] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required to be used in the embodiments of the present invention will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0038] Figure 1 is a schematic diagram of the shipborne uninterrupted cooling device provided by the embodiment of the present invention;

[0039] Figure 2 The heat exchanger connection structure diagram of the shipborne uninterrupted cooling device provided by the embodiment of the present invention;

[0040] Figure 3 is a schematic structural diagram of the shipborne uninterrupted cooling device provided by the embodiment of the present invention;

[0041] Figure 4 is the schematic diagram of the proportional integral valve of the shipborne uninterrupted cooling device provided by the embodiment of the present invention;

[0042] Figure 5 It is a schematic diagram of the control circuit connection of the intelligent control module of the shipborne uninterrupted cooling device provided by the embodiment of the present invention;

[0043] Figure 6 It is a schematic structural diagram of the cold storage liquid storage tank of the shipborne uninterrupted cooling device provided by the embodiment of the present invention;

[0044] Figure 7 It is a flowchart of the shipborne uninterrupted cooling method provided by the embodiment of the present invention. Detailed implementation manners

[0045] In order to make the objectives, technical solutions and advantages of the present invention clearer and more understandable, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0046] In the description of the present invention, the orientation or positional relationship indicated by terms such as "inner", "outer", "longitudinal", "lateral", "upper", "lower", "top", "bottom", etc. is based on the orientation or positional relationship shown in the accompanying drawings. It is only for the convenience of describing the present invention rather than requiring the present invention to be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present invention.

[0047] In addition, the technical features involved in the various embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0048] Embodiment 1:

[0049] Embodiment 1 of the present invention provides a shipborne uninterrupted cooling device, including a flow mixing temperature control component, a liquid storage tank, a cold storage liquid storage tank and a circulation pump;

[0050] The first water inlet of the flow mixing temperature control component is connected to the liquid storage tank, and is used to cool the load with the coolant in the liquid storage tank;

[0051] The second water inlet of the flow mixing temperature control component is connected to the cold storage liquid storage tank unit, and is used to cool the load with the coolant in the cold storage liquid storage tank;

[0052] The circulation pump is arranged at the water outlet of the flow mixing temperature control component and is used to provide the power for the coolant circulation;

[0053] The coolant in the liquid storage tank flows through the first water inlet to the flow mixing temperature control component, flows through the circulation pump through the water outlet of the flow mixing temperature control component, then flows to the load, absorbs the heat of the load and then flows back into the liquid storage tank, forming a first circulation loop of the coolant;

[0054] The coolant in the cold storage liquid tank flows through the second water inlet to the flow mixing temperature control component, then flows through the circulating pump through the water outlet of the flow mixing temperature control component, and then flows to the load. After absorbing the heat of the load, it flows back into the cold storage liquid tank to form a second circulation loop of the coolant.

[0055] As Figure 1 shown, it is a schematic diagram of the uninterrupted cooling device provided by the embodiment of the present invention. Based on the traditional method, the embodiment of the present invention utilizes the external cooling water of the ship to exchange heat with the internal coolant, and the cold storage liquid tank to realize the regulation of the load temperature, ensuring that the temperature of the load is within the normal working range. The ship is bathed in the entire sea, and the external cooling water can be considered infinite. The embodiment of the present invention preferentially selects the first circulation loop to exchange heat with the load. When only using the external cooling water can ensure that the load temperature is within the normal working range, it completely relies on the transfer of the coolant to realize the heat exchange between the external cooling water and the load; when the load generates heat too fast, making the external cooling water insufficient to reduce the load temperature to within the normal working range, the coolant in the cold storage liquid tank will enter the load through the second water inlet to further cool the load and ensure that the load temperature is reduced to within the normal working range. In this way, by using the infinite external cooling water, the energy consumption of the ship is greatly saved.

[0056] To show the complete solution of the present invention, the details of the device in the embodiment of the present invention will be further described below. To meet the heat exchange between the internal coolant of the ship and the external cooling water, the device in the embodiment of the present invention further includes a heat exchanger, and the heat exchanger is used for the heat exchange between the coolant in the liquid storage tank and the external cooling water.

[0057] The principle of the heat exchanger in the embodiment of the present invention is to insert a part of the coolant pipeline into a container filled with external cooling water for heat exchange, and the condition for heat exchange is that there is a temperature difference between the coolant and the external cooling water. Through the continuous heat exchange between the infinite external cooling water and the internal coolant, the temperature of the coolant is reduced, thereby reducing the heat generated by the neutralization load. If you want to adjust the flow rate of the external cooling water and increase the speed of heat exchange, a circulating pump can be set on the pipeline of the external cooling water, and the purpose of adjusting the flow rate of the external cooling water can be achieved by increasing or decreasing the power of the circulating pump. Combining with the specific scenario of the embodiment of the present invention, it is preferably to use the water inlet and outlet device of the internal water storage compartment of the ship and the pipeline connected to the liquid storage tank to form a heat exchanger, as Figure 2, the pipeline connected to the liquid storage tank is arranged in the water storage tank, and the purpose of adjusting the flow rate of the external cooling water is achieved by adjusting the water inflow and outflow in the water storage tank. The circulation pump is installed on the pipeline of the internal coolant to provide power for the circulation of the coolant. It should be noted that the temperature of the external cooling water will not always be lower than the temperature of the internal coolant (for example: the external cooling water is missing or the circulation stops due to abnormal conditions). At this time, when heat exchange is carried out through the heat exchanger, the internal coolant will absorb the temperature of the external cooling water, causing the temperature of the internal coolant to rise.

[0058] Furthermore, the flow-through temperature control component of the embodiment of the present invention includes an intelligent control module and a proportional integral valve. The intelligent control module is used to receive signals and issue instructions. The proportional integral valve is electrically connected to the intelligent control module and is used to adjust the water inflow of the first water inlet and the second water inlet.

[0059] Furthermore, the device of the embodiment of the present invention further includes a first temperature sensor, a second temperature sensor, and a third temperature sensor. And the first temperature sensor, the second temperature sensor, the third temperature sensor, and the flowmeter are respectively electrically connected to the intelligent control module. The first temperature sensor is used to measure the temperature of the coolant at the first water inlet. The second temperature sensor is used to measure the temperature of the coolant at the outlet of the flow-through temperature control component. The third temperature sensor is used to measure the temperature of the external cooling water. The flowmeter is used to monitor the flow rate of the coolant at the outlet of the flow-through temperature control component.

[0060] To achieve the regulation and control of the load temperature in the embodiment of the present invention, it is necessary to monitor the temperature and flow rate in the coolant, as well as the temperature of the external cooling water. As Figure 3The figure shows a schematic connection diagram of the device for uninterrupted cooling in the embodiments of the present invention. The effect of heat exchange between the external cooling water and the internal coolant through the heat exchanger depends on the temperature difference between the external cooling water and the internal coolant, as well as the flow rates of the external cooling water and the internal coolant. Under normal circumstances, to keep the data room or load (hereinafter always referred to as the load) of the ship operating continuously and normally, it is necessary to maintain the temperature of the load within a normal operating range (for example: 25°C ± 15°C). Too low a temperature will make the machine run sluggishly, and too high a temperature will cause the load to overheat and be damaged. The load generates heat by itself, and the speed of accelerating the heat dissipation of the load depends on the temperature and flow rate of the coolant flowing into the load, and the flow rate of the coolant depends on the power of the circulation pump. Starting from the function of the circulation pump, in the embodiments of the present invention, the circulation pump is preferably arranged between the outlet of the mixing flow temperature control component and the inlet of the load, and the flow rate of the internal coolant is adjusted by adjusting the power of the circulation pump. However, when the ship is operating smoothly, the parameters of the circulation pump have been set in advance and generally do not change when no adjustment is required. In the process of elaborating on the temperature in the present invention, it can be considered that the flow rate of the internal coolant basically maintains a constant value when the circulation pump is not adjusted. In addition, during the ship launching experiment, the relationship between the temperature at the outlet of the mixing flow temperature control component and the flow rate of the coolant can be measured in advance when maintaining the load within the normal operating temperature range.

[0061] From a reverse thinking perspective, based on the condition that the ship needs to maintain the load temperature within a normal range, the parameters to be measured in this solution are further described. Assume that the circulation pump is at a fixed power (which has been described previously), and at this time, the flow rate of the coolant is also at a constant value. According to the operation of the ship, there is a temperature range for the load to operate normally (for example: 25°C ± 15°C). Through the normal operating temperature range of the load and the heat released by the load per unit time and the heat absorbed by the coolant at the outlet of the mixing flow temperature control component under the current coolant flow rate, they follow the law of conservation of energy (ignoring the energy loss during the flow of the coolant from the outlet of the mixing flow temperature control component to the inlet of the load and the heat exchange between the coolant and the load). The temperature range that the coolant at the outlet of the mixing flow temperature control component needs to maintain can be deduced. For the convenience of description, this temperature range is called the threshold temperature of the internal coolant. In the embodiment of the present invention, external cooling water is preferably used for heat exchange with the internal coolant, that is, the first circulation loop is preferably enabled. When the temperature of the coolant at the first inlet of the mixing flow temperature control component falls within the threshold temperature, the load temperature can be stabilized within the normal operating temperature range only by relying on the first circulation loop; when the temperature of the coolant at the first inlet of the mixing flow temperature control component is higher than the upper limit of the threshold temperature, the high-temperature coolant needs to be cooled down at this time. In the embodiment of the present invention, the heat exchange between the external cooling water and / or the cold storage material in the cold storage liquid tank and the coolant is used to reduce the temperature at the outlet of the mixing flow temperature control component to within the threshold temperature; when the temperature of the coolant at the first inlet of the mixing flow temperature control component is lower than the lower limit of the threshold temperature, the internal coolant needs to absorb a certain amount of heat to make the temperature at the outlet of the mixing flow temperature control component fall within the threshold temperature. The possible sources of heat available for the internal coolant to absorb include external cooling water, the load, and the heat dissipation of the refrigeration unit. From the perspective of equipment adjustment and control, the parameters that need to be monitored include the temperature and flow rate of the external cooling water, the temperature of the coolant at the first inlet of the mixing flow temperature control component, the temperature of the coolant at the second inlet of the mixing flow temperature control component, the temperature and flow rate at the outlet of the mixing flow temperature control component, and the temperature of the load. Considering the heat loss of the coolant in the section from the outlet of the mixing flow temperature control component to the inlet of the load, the temperature at the inlet of the load also needs to be monitored. In addition, in order to accurately control the temperature at the outlet of the mixing flow temperature control component, the embodiment of the present invention is provided with a proportional integral valve, such as Figure 4As shown, it represents the working principle diagram of the proportional integral valve. The proportional integral valve adjusts the effective area of the water outlet to control the liquid inflow of the coolant at the first water inlet and the second water inlet. Corresponding sensors are set at the parts to be monitored. The intelligent control module in the flow mixing temperature control component receives the parameter signals monitored by the sensors, analyzes them and issues instructions, and conveys the instructions to the proportional integral valve, the circulation pump and the heat exchanger for execution. Then, the proportional integral valve adjusts the liquid inflow ratio of the coolant at the first water inlet and the second water inlet of the flow mixing temperature control component, the circulation pump adjusts the flow rate of the coolant, and the heat exchanger adjusts the flow rate of the external cooling water, so as to achieve precise control of the load temperature.

[0062] The following gives a brief description of the intelligent control module in the flow mixing temperature control component. As Figure 5 shown, it represents the schematic diagram of the control circuit connection of the intelligent control module. The intelligent control module is mainly used to analyze the parameters transmitted by the sensors and issue control commands to each device in the device. Through the regulation of the intelligent control module, the load temperature is controlled within the normal working range temperature. In the embodiment of the present invention, the intelligent control module realizes the purpose of regulating the load temperature by regulating the water inflow and outflow of the water storage tank for external cooling water, the liquid inflow ratio of the proportional integral valve, the power of the refrigeration unit and the power of the circulation pump.

[0063] Furthermore, the cold storage liquid storage tank is connected with a refrigeration unit. The refrigeration unit is used to convert the cold storage material with low cold density into the cold storage material with high cold density and store it in the cold storage liquid storage tank. And, there are phase change cold storage balls in the cold storage liquid storage tank, which are used to store the cold storage material that generates phase change by compression of the compressor.

[0064] In addition to using the external cooling water to exchange heat with the load in the embodiment of the present invention, when necessary, the second water outlet of the flow mixing temperature control component is opened through the proportional integral valve, so that the coolant passing through the load flows into the cold storage liquid storage tank, and then enters the load through the second water outlet for cooling. The refrigeration unit connected to the cold storage liquid storage tank only compresses and cools the cold storage material and does not directly participate in the heat exchange of the present invention. Whether the cold storage liquid storage tank is exchanging heat with the internal coolant or not, the refrigeration compression unit will compress the cold storage material for cold storage. Only when the cold storage material is saturated with cold storage and the cold storage liquid storage tank does not participate in the heat exchange, the compressor unit will stop working. As Figure 6As shown in the figure, it is a schematic structural diagram of a cold storage liquid storage tank. Phase change cold storage balls are provided inside the cold storage liquid storage tank, and energy storage materials are provided inside the phase change cold storage balls. Generally, energy storage materials with a low freezing point and a large specific heat capacity are selected. When the refrigeration unit operates, it continuously cools the energy storage materials inside the phase change cold storage balls to the freezing point, so that the cold storage density of the energy storage materials (the amount of heat that can be absorbed by the energy storage materials per unit volume) is greater. When using the energy storage materials to cool the coolant, the energy storage materials first absorb the temperature of the coolant by changing from a solid state to a low-temperature liquid state, and then use the low-temperature liquid energy storage materials to further cool the coolant, thereby reducing the temperature of the load to the normal operating temperature range.

[0065] To maintain the load temperature within the normal operating range, it is necessary to make the heat generated by the load per unit time equal to the heat absorbed by the coolant from the load per unit time. In the embodiment of the present invention, external cooling water is preferably used for heat exchange with the load. And in most cases, the load first transfers the internal heat to the coolant, and then uses the external cooling water through the heat exchanger to cool the coolant with a higher temperature. By continuously circulating this process, when encountering some difficult cooling situations, the intelligent control module will open and adjust the liquid inflow rate of the water outlet of the cold storage liquid storage tank (corresponding to the liquid inflow rate of the second water inlet of the bypass flow control component) according to the demand, achieving the purpose of continuous shipboard cooling. In the embodiment of the present invention, external cooling water is used to cool the load. And on the premise of infinite external cooling water, the energy consumption inside the ship is greatly reduced. The cold storage liquid storage tank in the embodiment of the present invention utilizes phase change cold storage. The compressor is used to convert the liquid energy storage material with a higher temperature into a solid energy storage material below the freezing point and store it in the phase change cold storage balls of the cold storage liquid storage tank, so that this solution can better cope with the situation where the load needs to be cooled rapidly, improving the disaster tolerance ability of the ship. And when the external cooling cycle is damaged, the high cold storage material with a fixed volume can keep the temperature of the ship load within the normal operating range for a longer time than the low cold storage material with a fixed volume. In addition, a part of the heat of the ship load is discharged into the external cooling water through heat exchange transfer. Compared with the traditional method of only cooling through air conditioners (actually compressor cooling), the demand for shipboard compressor cooling is reduced, thereby achieving the purpose of reducing the maximum power of the refrigeration equipment.

[0066] Embodiment 2

[0067] As Figure 7As shown in the figure, based on the shipborne uninterrupted cooling device of Embodiment 1 of the present invention, the present invention also provides a method for shipborne uninterrupted cooling. The intelligent control module of the flow mixing temperature control component receives the monitored temperature of the temperature sensor and the temperature parameters of the load, and adjusts the liquid inflow rate of the coolant in the liquid storage tank and the cold storage liquid storage tank into the load through the proportional integral valve, as well as the flow rate of the internal coolant. By adjusting the circulation pump, heat exchanger and proportional integral valve, the uninterrupted cooling of the load is realized. The specific method includes:

[0068] Step 201: According to the temperature range of the load in the normal working state, obtain the relationship between the threshold temperature of the coolant at the outlet of the flow mixing temperature control component and the flow rate of the coolant at the outlet of the flow mixing temperature control component under the condition of maintaining the normal working temperature of the load.

[0069] The temperature of the ship's load needs to be maintained within the normal working temperature range. When the coolant flow rate is constant (when the power of the circulation pump is constant), according to the energy conservation relationship in the heat transfer process, ignoring the heat exchange between the coolant from the flow mixing temperature control component to the inlet of the load and the external environment, the temperature of the coolant at the outlet of the flow mixing temperature control component should also be within a fixed temperature range, and this range value can be measured according to the control variable method. Theoretically, the faster the coolant flow rate, the faster the heat exchange speed of the load per unit time. Before the ship goes into the water for work, the relationship between the threshold temperature of the coolant at the outlet of the flow mixing temperature control component and the flow rate of the coolant at the outlet of the flow mixing temperature control component can be obtained through experiments.

[0070] Step 202: Measure the flow rate of the coolant at the inlet of the load in the current state, and obtain the threshold temperature of the coolant at the outlet of the flow mixing temperature control component in the current state according to the relationship between the threshold temperature of the coolant at the outlet of the flow mixing temperature control component and the flow rate of the coolant at the outlet of the flow mixing temperature control component.

[0071] Among them, during the operation of the ship, the current flow rate of the internal coolant can be measured by the flow sensor at the outlet of the flow mixing temperature control component, and the threshold temperature of the coolant at the outlet of the flow mixing temperature control component when the load temperature is maintained normal can be obtained through the relationship between the flow rate and the temperature of the coolant at the outlet of the flow mixing temperature control component. When the flow rate is constant, the normal working temperature range of the load determines the range that the temperature of the coolant at the outlet of the flow mixing temperature control component needs to reach.

[0072] Step 203: Compare the relationship between the temperature of the coolant at the outlet of the flow mixing temperature control component and the upper and lower limits of the threshold temperature, the temperature of the external cooling water and the coolant at the heat exchanger, and the temperature of the coolant at the first inlet of the flow mixing temperature control component and the temperature of the coolant at the outlet of the flow mixing temperature control component.

[0073] Through the monitoring of the corresponding sensor parameters (the actual values of each part of the ship's circulation loop), the refrigeration control module in the flow mixing temperature control component performs corresponding operations through the comparison of the actual values and the theoretical values.

[0074] Step 204: Through the comparison of temperatures, the intelligent control module controls the proportional-integral valve to adjust the liquid inflow of the first water inlet and the second water inlet, the power of the circulation pump, and the flow rate of the external cooling water of the heat exchanger, so as to ensure that the temperature of the load is within the temperature range of the normal working state.

[0075] Through the comparison of temperatures, the intelligent control module in the mixing flow temperature control component issues an instruction to adjust the corresponding equipment to perform corresponding operations, and through the adjustment, ensures that the temperature of the load is within the temperature range of the normal working state.

[0076] Combined with the equipment and method of the uninterrupted cooling equipment in Embodiment 1 and Embodiment 2 of the present invention, the equipment of the device in the embodiment of the present invention is further elaborated on how the mixing flow temperature control component adjusts the proportional-integral valve, the heat exchanger, and the circulation pump through the intelligent control module in the face of different temperature scenarios, so as to achieve the purpose of keeping the load temperature always within the normal temperature range.

[0077] The comparison of temperatures in the embodiment of the present invention mainly includes the magnitude of the measured values of the coolant at the first water inlet and the outlet coolant of the mixing flow temperature control component, the relationship between the measured value of the outlet coolant and the threshold temperature of the outlet, and the temperature difference between the external cooling water and the internal coolant including the heat exchanger part. Then, by adjusting the control of the coolant at the second water inlet, the purpose of maintaining the load temperature is achieved. The threshold temperature in the embodiment of the present invention is the temperature of the outlet coolant of the mixing flow temperature control component when the load temperature maintains normal operation at the current flow rate. The relationship between the temperature of the outlet coolant of the mixing flow temperature control component and the upper and lower limits of the threshold temperature specifically includes three cases: the temperature of the outlet coolant of the mixing flow temperature control component is lower than the lower limit of the threshold temperature, the lower limit of the threshold temperature is not higher than the temperature of the outlet coolant of the mixing flow temperature control component and not higher than the upper limit of the threshold temperature, and the temperature of the outlet coolant of the mixing flow temperature control component is higher than the upper limit of the threshold temperature. For the convenience of description, the temperature of the coolant at the first water inlet measured by the first temperature sensor is set as t1, the temperature of the coolant at the second water inlet measured by the second temperature sensor is set as t2, the temperature of the outlet coolant measured by the third temperature sensor is set as t3, and the flow rate of the external cooling water measured by the flow meter is set as V. According to the relationship between the threshold temperature of the outlet coolant of the mixing flow temperature control component and the flow rate of the outlet coolant of the mixing flow temperature control component, the threshold temperature of the outlet coolant of the mixing flow temperature control component with a flow rate of V is obtained. To maintain the normal operation of the load, when the coolant flow rate is V, t3 must fall within the threshold temperature (threshold temperature lower limit ≤ t2 ≤ threshold temperature upper limit). Reducing the liquid inflow of the first water inlet in the embodiment of the present invention includes closing the first water inlet, and reducing the liquid inflow of the second water inlet includes closing the second water inlet. Among them, the comparison between t1 and t2 affects the adjustment of the proportional-integral valve, and the comparison between t3 and t1 affects the adjustment of the heat exchanger. Next, the specific adjustment of this method is elaborated by comparing the corresponding temperatures.

[0078] When t2 is less than the lower limit of the threshold temperature, at this time the load needs to absorb heat or slow down heat dissipation to maintain the normal temperature. The proportional-integral valve closes the second water inlet, and the coolant only circulates on the first circulation loop. By reducing the output power of the circulation pump, the flow rate of the coolant is reduced, so that the temperature of the load rises. At this time, when t1≥t2 and t3≥t1, the intelligent control module issues an instruction, and the proportional-integral valve reduces the proportion of the coolant at the second water inlet (increases the proportion of the coolant at the first water inlet), and the heat exchanger works. The external cooling water heats the internal coolant, and the power of the circulation pump is reduced to adjust the heat release rate between the internal coolant and the load. Among them, reducing the proportion of the coolant at the second water inlet includes closing the second water inlet (if the second water inlet is in the closed state at this time, it will continue to remain closed). Then in this process, the intelligent temperature control component determines the priority order for the purpose of reducing shipborne energy consumption: reducing the power of the circulation pump takes precedence over the coolant absorbing heat from the external cooling water, and the coolant absorbing heat from the external cooling water takes precedence over adjusting the liquid inlet proportion of the proportional-integral valve. The priority means that when multiple devices can achieve the same effect, the priority device will be preferably selected to execute. When the maximum capacity of the preferred device to execute still cannot achieve this effect, devices with a lower priority than this device will participate and jointly achieve this effect. When the temperature of the external cooling water is lower than the temperature of the internal coolant, the heat exchanger directly stops working and does not perform heat exchange. Moreover, when only adjusting one of the heat exchanger, the circulation pump, and the proportional-integral valve still cannot meet the requirement of raising the temperature of the internal coolant of the load within the threshold temperature, multiple devices will be used simultaneously to heat the coolant in the order of priority.

[0079] When t2 is less than the lower limit of the threshold temperature, when t1≥t2 and t3≤t1, the intelligent control module issues an instruction to close the heat exchanger, reduce the power of the circulation pump, and control the proportional-integral valve to increase the liquid inlet volume of the first water inlet and reduce the liquid inlet volume of the second water inlet. In this process, the intelligent temperature control component determines the priority order for the purpose of reducing shipborne energy consumption: reducing the power of the circulation pump takes precedence over adjusting the liquid inlet proportion of the proportional-integral valve.

[0080] When t2 is less than the lower limit of the threshold temperature, when t1<t2 and t3>t1, the intelligent control module issues an instruction to open the heat exchanger, increase the flow rate of the external cooling water, reduce the power of the circulation pump, and the proportional-integral valve reduces the liquid inlet volume of the second water inlet and reduces the liquid inlet volume of the first water inlet; by reducing the heat release per unit time of the load and absorbing the heat of the external cooling water through the coolant transfer, the temperature of the load is maintained within the normal working temperature range at this flow rate. The priority of device adjustment: reducing the power of the circulation pump takes precedence over increasing the flow rate of the external cooling water takes precedence over adjusting the liquid inlet proportion of the proportional-integral valve.

[0081] When t2 < the lower threshold temperature, t1 < t2, and t3 < t1, the intelligent control module issues an instruction to close the heat exchanger, reduce the power of the circulation pump, the proportional-integral valve reduces the liquid inflow rate of the second water inlet, and reduces the liquid inflow rate of the first water inlet; the load temperature is maintained within the normal operating temperature range at this flow rate by slowing down the load heat dissipation. The priority of equipment adjustment: reducing the power of the circulation pump takes precedence over adjusting the liquid inflow ratio of the proportional-integral valve.

[0082] When the lower threshold temperature ≤ t2 ≤ the upper threshold temperature, the load temperature can be guaranteed to be maintained in the normal operating state at this flow rate, and the current operating state of the equipment can be maintained.

[0083] When t2 > the upper threshold temperature, t1 > t2, and t3 > t1, the control module issues an instruction to close the heat exchanger, increase the power of the circulation pump, the proportional-integral valve increases the liquid inflow rate of the second water inlet, and reduces the liquid inflow rate of the first water inlet; the flow rate of the coolant is quickly increased by the circulation pump to increase the heat dissipation per unit time of the load, so that the load temperature is reduced, and when the coolant temperature of the first water inlet is too high, the proportional-integral valve increases the liquid inflow rate of the coolant of the second water inlet, so that the outlet temperature is reduced, thereby reducing the load temperature to within the threshold temperature range at the current flow rate. At this time, the priority relationship of equipment adjustment: the adjustment of the proportional-integral valve takes precedence over increasing the power of the circulation pump.

[0084] When t2 > the upper threshold temperature, t1 > t2, and t3 < t1, the intelligent control module issues an instruction to open the heat exchanger, increase the flow rate of the external cooling water, increase the power of the circulation pump, the proportional-integral valve increases the liquid inflow rate of the second water inlet, and reduces the liquid inflow rate of the first water inlet; by increasing the heat exchange speed between the external cooling water and the internal coolant, increasing the flow rate of the internal coolant to accelerate the heat dissipation per unit time of the load and cooling the coolant through the cold storage material in the cold storage liquid tank, the load temperature is reduced to within the threshold temperature range at the current flow rate. At this time, the priority relationship of equipment adjustment: adjusting the flow rate of the external cooling water takes precedence over the adjustment of the proportional-integral valve takes precedence over the adjustment of the circulation pump.

[0085] When t2 > the upper threshold temperature, t1 ≤ t2, and t3 ≥ t1, the intelligent control module issues an instruction to close the heat exchanger, increase the power of the circulation pump, the proportional-integral valve increases the liquid inflow rate of the second water inlet, and reduces the liquid inflow rate of the first water inlet; increasing the flow rate of the internal coolant to accelerate the heat dissipation per unit time of the load and cooling the coolant through the cold storage material in the cold storage liquid tank. At this time, the priority relationship of equipment adjustment: the adjustment of the proportional-integral valve takes precedence over the adjustment of the circulation pump.

[0086] When t2 > the upper limit of the threshold temperature, t1 ≤ t2, and t3 ≤ t1, the control module can issue an instruction to open the heat exchanger, increase the flow rate of the external cooling water, increase the power of the circulation pump, the proportional integral valve increases the liquid inflow of the second water inlet, and decreases the liquid inflow of the first water inlet; at this time, the priority relationship of the equipment adjustment is: adjusting the flow rate of the external cooling water takes precedence over the adjustment of the proportional integral valve, which takes precedence over the adjustment of the circulation pump.

[0087] The heat loss during the flow process of the coolant pipeline is basically negligible compared to the heat exchange. Therefore, the temperature of the coolant at the first water inlet is used to replace the temperature of the coolant on the heat exchanger side. In the actual process, a temperature sensor can be set on the heat exchanger side for precise comparison, and the heat exchanger is adjusted according to the comparison result.

[0088] In the embodiment of the present invention, the heat exchanger adjusts the water inflow and outflow only through the valve parts in the water storage tank. This process does not require additional consumption of the energy of the ship. When the temperatures on both sides of the heat exchanger are equal (t3 = t1), for the heat exchanger, the internal coolant and the external cooling water do not perform heat exchange. The heat exchanger adjusts the water inflow of the water storage tank without consuming the energy inside the ship. At this time, adjusting the water inflow, closing or opening the heat exchanger will not affect the temperature of the internal coolant.

[0089] It should be noted that when it is necessary to raise the temperature of the internal coolant, the heat of the compressor unit can also be used to raise the temperature of the internal coolant. The equipment in the embodiment of the present invention determines the priority for the purpose of reducing the energy consumption of the ship. The priority is set according to the result of the temperature comparison. When the temperature comparison meets the corresponding results in the above, the control of the corresponding equipment follows the corresponding priority.

[0090] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, and improvements made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A shipborne uninterrupted cooling device, characterized in that Including: A flow mixing temperature control component, a liquid storage tank, a cold storage liquid storage tank, and a circulation pump; The first water inlet of the flow mixing temperature control component is connected to the liquid storage tank, and is used to cool the load with the coolant in the liquid storage tank; The second water inlet of the flow mixing temperature control component is connected to the cold storage liquid storage tank unit, and is used to cool the load with the coolant in the cold storage liquid storage tank; The circulation pump is arranged at the water outlet of the flow mixing temperature control component and is used to provide the power for the coolant circulation; The coolant in the liquid storage tank flows through the first water inlet to the flow mixing temperature control component, flows through the circulation pump through the water outlet of the flow mixing temperature control component, then flows to the load, absorbs the heat of the load and then flows back into the liquid storage tank, forming the first circulation loop of the coolant; The coolant in the cold storage liquid storage tank flows through the second water inlet to the flow mixing temperature control component, then flows through the circulation pump through the water outlet of the flow mixing temperature control component, then flows to the load, absorbs the heat of the load and then flows back into the cold storage liquid storage tank, forming the second circulation loop of the coolant; The shipborne uninterrupted cooling device further includes a heat exchanger, and the heat exchanger is used for heat exchange between the coolant in the liquid storage tank and the external cooling water; the cold storage liquid storage tank is connected with a refrigeration unit, and the refrigeration unit is used to convert the cold storage material with low cold density into the cold storage material with high cold density and store it in the cold storage liquid storage tank; The flow mixing temperature control component includes an intelligent control module and a proportional integral valve. The intelligent control module is used to receive signals and issue instructions. The proportional integral valve is electrically connected to the intelligent control module and is used to adjust the water inflow of the first water inlet and the second water inlet.

2. The device for shipborne uninterrupted cooling according to claim 1, characterized in that, It further includes a first temperature sensor, a second temperature sensor, and a third temperature sensor. Moreover, the first temperature sensor, the second temperature sensor, and the third temperature sensor are respectively electrically connected to the intelligent control module. The first temperature sensor is used to measure the temperature of the coolant at the first water inlet. The second temperature sensor is used to measure the temperature of the coolant at the water outlet of the flow mixing temperature control component. The third temperature sensor is used to measure the temperature of the external cooling water.

3. The device for uninterrupted shipboard cooling according to claim 1, characterized in that, It further includes a flow meter. The flow meter is electrically connected to the intelligent control module, and the flow meter is used to monitor the flow rate of the coolant at the water outlet of the flow mixing temperature control component.

4. The device for shipborne uninterrupted cooling according to claim 1, characterized in that Phase change cold storage balls are arranged in the cold storage liquid storage tank and are used to store the cold storage material that generates phase change through compression by a compressor.

5. A shipborne uninterrupted cooling method applied to the shipborne uninterrupted cooling device described in any one of claims 1-4, characterized in that, The intelligent control module of the flow mixing temperature control component receives the monitored temperature of the temperature sensor and the temperature parameter of the load, and adjusts the liquid inflow of the coolant in the liquid storage tank and the cold storage liquid storage tank into the load, as well as the flow rate of the internal coolant, by adjusting the circulation pump, the heat exchanger, the refrigeration unit, and the proportional integral valve, so as to realize uninterrupted cooling of the load. The specific method includes: According to the temperature range of the normal working state of the load, obtain the relationship between the threshold temperature of the coolant at the water outlet of the flow mixing temperature control component and the flow rate of the coolant at the water outlet of the flow mixing temperature control component under the condition of maintaining the normal working temperature of the load; Measure the flow rate of the coolant at the water inlet of the load in the current state, and obtain the threshold temperature of the coolant at the water outlet of the flow mixing temperature control component in the current state according to the relationship between the threshold temperature of the coolant at the water outlet of the flow mixing temperature control component and the flow rate of the coolant at the water outlet of the flow mixing temperature control component; Compare the temperature of the coolant at the outlet of the mixing flow temperature control component with the upper and lower limits of the threshold temperature, the temperature of the external cooling water and the coolant at the heat exchanger, and the temperature of the coolant at the first inlet of the mixing flow temperature control component and the temperature of the coolant at the outlet of the mixing flow temperature control component; Through the comparison of temperatures, the proportional-integral valve adjusts the liquid inflow of the first inlet and the second inlet, the power of the circulation pump, and the flow rate of the external cooling water of the heat exchanger to ensure that the temperature of the load is within the temperature range of the normal working state.

6. The method for shipborne uninterrupted cooling according to claim 5, wherein The threshold temperature is the temperature of the coolant at the outlet of the mixing flow temperature control component when the load temperature maintains normal operation at the current flow rate. The relationship between the temperature of the coolant at the outlet of the mixing flow temperature control component and the upper and lower limits of the threshold temperature specifically includes: the temperature of the coolant at the outlet of the mixing flow temperature control component is lower than the lower limit of the threshold temperature, the lower limit of the threshold temperature is not higher than the temperature of the coolant at the outlet of the mixing flow temperature control component which is not higher than the upper limit of the threshold temperature, and the temperature of the coolant at the outlet of the mixing flow temperature control component is higher than the upper limit of the threshold temperature, these three situations.

7. The method for shipborne uninterrupted cooling according to claim 6, wherein Based on the comparison result of the temperatures, the corresponding adjustments to the proportional-integral valve, the circulation pump, and the heat exchanger specifically include: When it is monitored that the temperature of the coolant at the outlet of the mixing flow temperature control component is lower than the lower limit of the threshold temperature at the current flow rate, the temperature of the coolant at the first inlet is not lower than the temperature of the coolant at the outlet of the mixing flow temperature control component, and the temperature of the external cooling water is higher than the temperature of the coolant on the heat exchanger side, the intelligent control module issues an instruction to open the heat exchanger, increase the flow rate of the external cooling water, reduce the power of the circulation pump, control the proportional-integral valve to increase the liquid inflow of the first inlet, and reduce the liquid inflow of the second inlet; When it is monitored that the temperature of the coolant at the outlet of the mixing flow temperature control component is lower than the lower limit of the threshold temperature at the current flow rate, the temperature of the coolant at the first inlet is not lower than the temperature of the coolant at the outlet of the mixing flow temperature control component, and the temperature of the external cooling water is not higher than the temperature of the coolant on the heat exchanger side, the intelligent control module issues an instruction to close the heat exchanger, reduce the power of the circulation pump, control the proportional-integral valve to increase the liquid inflow of the first inlet, and reduce the liquid inflow of the second inlet; When it is monitored that the temperature of the coolant at the outlet of the mixing flow temperature control component is lower than the lower limit of the threshold temperature at the current flow rate, the temperature of the coolant at the first inlet is lower than the temperature of the coolant at the outlet of the mixing flow temperature control component, and the temperature of the external cooling water is higher than the temperature of the coolant on the heat exchanger side, the intelligent control module issues an instruction to open the heat exchanger, increase the flow rate of the external cooling water, reduce the power of the circulation pump, the proportional-integral valve reduces the liquid inflow of the second inlet, and reduces the liquid inflow of the first inlet; When it is monitored that the temperature of the coolant at the outlet of the mixing flow temperature control component is lower than the lower limit of the threshold temperature at the current flow rate, the temperature of the coolant at the first inlet is lower than the temperature of the coolant at the outlet of the mixing flow temperature control component, and the temperature of the external cooling water is lower than the temperature of the coolant on the heat exchanger side, the intelligent control module issues an instruction to close the heat exchanger, reduce the power of the circulation pump, the proportional-integral valve reduces the liquid inflow of the second inlet, and reduces the liquid inflow of the first inlet; When the lower limit of the threshold temperature is not higher than the monitored temperature of the outlet of the mixing flow temperature control component, and the monitored temperature of the outlet of the mixing flow temperature control component is not higher than the upper limit of the threshold temperature, the load temperature can be maintained in the normal working state at this flow rate, and the current operating state of the device can be maintained; When the monitored temperature of the outlet of the mixing flow temperature control component is higher than the upper limit of the threshold temperature at the current flow rate, the temperature of the coolant at the first water inlet is higher than the temperature of the outlet of the mixing flow temperature control component, and the temperature of the external cooling water is higher than the temperature of the coolant on the heat exchanger side, the intelligent control module issues an instruction to close the heat exchanger, increase the power of the circulation pump, the proportional integral valve increases the liquid inflow of the second water inlet, and reduces the liquid inflow of the first water inlet; When the monitored temperature of the outlet of the mixing flow temperature control component is higher than the upper limit of the threshold temperature at the current flow rate, the temperature of the coolant at the first water inlet is higher than the temperature of the outlet of the mixing flow temperature control component, and the temperature of the external cooling water is lower than the temperature of the coolant on the heat exchanger side, the intelligent control module issues an instruction to open the heat exchanger, increase the flow rate of the external cooling water, increase the power of the circulation pump, the proportional integral valve increases the liquid inflow of the second water inlet, and reduces the liquid inflow of the first water inlet; When the monitored temperature of the outlet of the mixing flow temperature control component is higher than the upper limit of the threshold temperature at the current flow rate, the temperature of the coolant at the first water inlet is not higher than the temperature of the outlet of the mixing flow temperature control component, and the temperature of the external cooling water is higher than the temperature of the coolant on the heat exchanger side, the intelligent control module issues an instruction to close the heat exchanger, increase the power of the circulation pump, the proportional integral valve increases the liquid inflow of the second water inlet, and reduces the liquid inflow of the first water inlet; When the monitored temperature of the outlet of the mixing flow temperature control component is higher than the upper limit of the threshold temperature at the current flow rate, the temperature of the coolant at the first water inlet is not higher than the temperature of the outlet of the mixing flow temperature control component, and the temperature of the external cooling water is not higher than the temperature of the coolant on the heat exchanger side, the intelligent control module issues an instruction to open the heat exchanger, increase the flow rate of the external cooling water, increase the power of the circulation pump, the proportional integral valve increases the liquid inflow of the second water inlet, and reduces the liquid inflow of the first water inlet; Among them, reducing the liquid inflow of the first water inlet includes closing the first water inlet, and reducing the liquid inflow of the second water inlet includes closing the second water inlet.

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