Three-coil-pipe system based on prefabricated square cabin and control method of three-coil-pipe system

Abstract

The embodiment of the invention provides a three-coil system based on a prefabricated square cabin and a control method thereof, and the system collects the indoor temperature and the outdoor temperature of the square cabin through a collection module, and transmits the indoor temperature and the outdoor temperature to a control module. When the control module detects that the indoor temperature is lower than the lower limit of a first temperature interval and the outdoor temperature is lower than a first preset threshold value, a heating mode is determined to be started, a first starting signal is sent to the heating driving module, and at the moment, the heating driving module controls an external electric valve to be opened to be connected into a waste heat recovery heat supply system in the data center; the heat supply requirement in the water conservancy square cabin is met through waste heat of the data center, and a refrigerating system is not started. And when it is detected that the indoor temperature is higher than the upper limit of the second temperature interval and the outdoor temperature is higher than a second preset threshold value, it is determined that the refrigeration mode is started, a second starting signal is sent to the refrigeration driving module, the refrigeration driving module controls an external compressor to operate, and the indoor refrigeration requirement is met. Through the process, the energy utilization rate can be remarkably increased.

Description

Technical Field

[0001] The present invention relates to the field of computer technology, and in particular to a three-coil system based on a prefabricated shelter and a control method thereof. Background Art

[0002] With the rapid development of the electronic information industry, data center development has entered a new phase, placing higher demands on the integration and energy efficiency of supporting facilities. Water conservancy shelters, standardized prefabricated modules for data centers, integrate chillers, cooling water pumps, chilled water pumps, and other equipment within containers. Their compact design and rapid deployment capabilities are highly sought after.

[0003] At present, the heating of traditional prefabricated water conservancy cabins mostly relies on independent heat sources, such as electric heating or gas boilers.

[0004] However, the traditional reliance on independent heat sources for cabin heating cannot effectively utilize the heat of the waste heat recovery heating system, which will cause energy waste and lead to low energy utilization. Summary of the Invention

[0005] The embodiment of the present invention provides a three-coil system based on a prefabricated shelter and a control method thereof, which can improve energy utilization.

[0006] In a first aspect, an embodiment of the present invention provides a three-coil system based on a prefabricated shelter, the system comprising:

[0007] Acquisition module, control module, heating drive module and cooling drive module;

[0008] Wherein, the control module is connected to the acquisition module, the heating drive module and the cooling drive module respectively;

[0009] The acquisition module is used to collect the indoor temperature and the outdoor temperature of the prefabricated shelter, and send the indoor temperature and the outdoor temperature to the control module;

[0010] The control module is configured to, based on a preset first temperature interval and a preset second temperature interval, determine to start the heating mode when detecting that the indoor temperature is lower than a lower limit of the first temperature interval and the outdoor temperature is lower than a first preset threshold, and send a first start signal to the heating drive module; and determine to start the cooling mode when detecting that the indoor temperature is higher than an upper limit of the second temperature interval and the outdoor temperature is higher than a second preset threshold, and send a second start signal to the cooling drive module;

[0011] The heating drive module is configured to control the external electric valve to open when receiving the first opening signal sent by the control module, so as to connect to the waste heat recovery heating system;

[0012] The refrigeration driving module is used to control the operation of the external compressor when receiving the second start signal sent by the control module.

[0013] Preferably,

[0014] The acquisition module includes an indoor temperature sensor and an outdoor temperature sensor;

[0015] The indoor temperature sensor is used to detect the indoor temperature of the prefabricated shelter and convert the indoor temperature into an electrical signal to be transmitted to the control module;

[0016] The outdoor temperature sensor is used to detect the outdoor temperature of the prefabricated shelter and convert the outdoor temperature into an electrical signal to be transmitted to the control module;

[0017] The indoor temperature sensor and the outdoor temperature sensor are connected to the control module respectively.

[0018] Preferably,

[0019] The heating drive module includes: a water supply pipe, an electric valve, a water-side heat exchange coil and a return pipe;

[0020] Wherein, the water supply pipe is used to input hot water into the waste heat recovery heating system;

[0021] The electric valve is used to open or close according to the electrical signal sent by the control module, connecting the heating circuit when opened and cutting off the waste heat recovery heating system when closed;

[0022] The water-side heat exchange coil is used to provide heat to the cabin through heat exchange;

[0023] The return pipe is used to return the low-temperature water after cooling;

[0024] The first end of the water supply pipe is connected to the water outlet of the external waste heat recovery heating system, and the second end of the water supply pipe is connected to the first end of the electric valve;

[0025] The second end of the electric valve is connected to the first end of the water-side heat exchange coil;

[0026] The second end of the water-side heat exchange coil is connected to the second end of the return pipe;

[0027] The first end of the return water pipe is connected to the water inlet of the waste heat recovery heating system.

[0028] Preferably,

[0029] The refrigeration drive module includes: a compressor, a mechanical refrigeration evaporator heat exchange coil, a throttle valve and a mechanical refrigeration condenser heat exchange coil;

[0030] Wherein, the compressor is used to drive the refrigerant circulation;

[0031] The heat exchange coil of the mechanical refrigeration evaporator is used to achieve cabin cooling through evaporation and heat absorption;

[0032] The throttle valve is used to throttle and reduce the pressure of the high-pressure refrigerant to control the flow rate;

[0033] The heat exchange coil of the mechanical refrigeration condenser is used to discharge heat through condensation;

[0034] The first end of the compressor is connected to the first end of the heat exchange coil of the mechanical refrigeration condenser, and the second end of the compressor is connected to the first end of the heat exchange coil of the mechanical refrigeration evaporator;

[0035] The second end of the heat exchange coil of the mechanical refrigeration condenser is connected to the first end of the throttle valve;

[0036] The second end of the throttle valve is connected to the second end of the heat exchange coil of the mechanical refrigeration evaporator.

[0037] Preferably,

[0038] further comprising: a first fan;

[0039] Wherein, the first fan is used to accelerate the air flow near the water-side heat exchange coil;

[0040] The first fan is arranged on a side away from the water-side heat exchange device.

[0041] Preferably,

[0042] further comprising: a second fan and a third fan;

[0043] Wherein, the second fan is used to assist the mechanical refrigeration condenser in dissipating heat;

[0044] The third fan is used to enhance the heat absorption of the mechanical refrigeration evaporator;

[0045] The second fan is arranged on a side away from the heat exchange coil of the mechanical refrigeration condenser;

[0046] The third fan is arranged on a side away from the heat exchange coil of the mechanical refrigeration evaporator.

[0047] Preferably,

[0048] The control module includes: an electric valve control unit and a compressor control unit;

[0049] The control module is configured to, based on a preset first temperature interval and a preset second temperature interval, determine to start the heating mode and send a first start signal to the electric valve control unit when detecting that the indoor temperature is lower than a lower limit of the first temperature interval and the outdoor temperature is lower than a first preset threshold; and determine to start the cooling mode and send a second start signal to the compressor control unit when detecting that the indoor temperature is higher than an upper limit of the second temperature interval and the outdoor temperature is higher than a second preset threshold;

[0050] The electric valve control unit is configured to control the external electric valve to open and connect to the waste heat recovery heating system upon receiving the first opening signal sent by the control module;

[0051] The compressor control unit is configured to control the operation of the external compressor upon receiving the second start signal sent by the control module.

[0052] Preferably,

[0053] The control module is further used to determine to shut down the heating mode when it is detected that the indoor temperature is not lower than the lower limit of the first temperature range and the outdoor temperature is not lower than the first preset threshold, and send a first shutdown signal to the electric valve control unit; when it is detected that the indoor temperature is not higher than the upper limit of the second target temperature range and the outdoor temperature is not higher than the second preset threshold, determine to shut down the cooling mode and send a second shutdown signal to the compressor control unit.

[0054] Preferably,

[0055] The control module further includes: a manual control unit;

[0056] Wherein, the manual control unit is used to manually control the opening and closing of the external electric valve and the compressor.

[0057] In a second aspect, an embodiment of the present invention provides a control method for a three-coil system based on a prefabricated shelter, the method comprising:

[0058] Using the acquisition module to collect the indoor temperature and outdoor temperature of the prefabricated shelter, and sending the indoor temperature and the outdoor temperature to the control module;

[0059] The control module is used to determine to start the heating mode according to the preset first temperature range and the second temperature range, when it is detected that the indoor temperature is lower than the first temperature lower limit and the outdoor temperature is lower than the first preset threshold, and send a first start signal to the heating drive module;

[0060] When it is detected that the indoor temperature is higher than the second temperature upper limit and the outdoor temperature is higher than a second preset threshold, determining to start the cooling mode and sending a second start signal to the cooling drive module;

[0061] The heating drive module controls the external electric valve to open and connect to the waste heat recovery heating system when receiving the first opening signal sent by the control module;

[0062] The refrigeration driving module is used to control the operation of the external compressor when receiving the second start signal sent by the control module.

[0063] Embodiments of the present invention provide a three-coil system based on a prefabricated shelter and its control method. This system uses a data acquisition module to collect the indoor and outdoor temperatures of the prefabricated shelter and transmits these data to a control module. The control module determines the operating mode based on a preset first and second temperature ranges, as well as the collected indoor and outdoor temperatures. When the indoor temperature is detected to be below the lower limit of the first temperature range and the outdoor temperature is below a first preset threshold, the system activates heating mode and sends a first activation signal to the heating driver module. The heating driver module then controls an external electric valve to open, connecting to the waste heat recovery heating system within the data center, utilizing the data center's waste heat to meet the heating needs of the water conservancy shelter. The cooling system remains inactive. When the indoor temperature is detected to be above the upper limit of the second temperature range and the outdoor temperature is above a second preset threshold, the system activates cooling mode and sends a second activation signal to the cooling driver module. The cooling driver module controls the external compressor to operate, meeting the indoor cooling needs, while the heating system remains inactive. This system, through this process, not only addresses the aesthetic and installation challenges of traditional split air conditioners with external outdoor units, but also significantly improves energy efficiency through waste heat recovery. BRIEF DESCRIPTION OF THE DRAWINGS

[0064] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0065] Figure 1 1 is a schematic diagram of a three-coil system based on a prefabricated shelter provided by one embodiment of the present invention;

[0066] Figure 2 1 is a schematic diagram of another three-coil system based on a prefabricated shelter provided by one embodiment of the present invention;

[0067] Figure 3Schematic diagram of another three-coil system based on a prefabricated shelter provided by one embodiment of the present invention;

[0068] Figure 4 1 is a schematic diagram of another three-coil system based on a prefabricated shelter provided by an embodiment of the present invention;

[0069] Figure 5 This is a schematic diagram of another three-coil system based on a prefabricated shelter provided by an embodiment of the present invention.

[0070] Figure 6 The present invention provides a flowchart of a three-coil control method based on a prefabricated shelter according to an embodiment of the present invention.

[0071] In the attached figure: 1: water supply pipe; 2: return pipe; 3: electric valve; 4: compressor; 5: throttle valve; 6: water side heat exchange coil; 7: mechanical refrigeration evaporator heat exchange coil; 8: mechanical refrigeration condenser heat exchange coil; 9: first fan; 10: water conservancy cabin; 11: box; 12: controller; 13: second fan; 14: third fan. DETAILED DESCRIPTION

[0072] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0073] like Figure 1 As shown, an embodiment of the present invention provides a three-coil system based on a prefabricated shelter, the system comprising:

[0074] Acquisition module 101, control module 102, heating drive module 103 and cooling drive module 104;

[0075] The control module 102 is connected to the acquisition module 101, the heating drive module 103 and the cooling drive module 104 respectively;

[0076] The acquisition module 101 is used to collect the indoor temperature and outdoor temperature of the prefabricated shelter and send the indoor temperature and outdoor temperature to the control module 102;

[0077] The control module 102 is configured to, based on a preset first temperature interval and a preset second temperature interval, determine to activate the heating mode when detecting that the indoor temperature is lower than the lower limit of the first temperature interval and the outdoor temperature is lower than a first preset threshold, and send a first activation signal to the heating drive module 103; and determine to activate the cooling mode when detecting that the indoor temperature is higher than the upper limit of the second temperature interval and the outdoor temperature is higher than the second preset threshold, and send a second activation signal to the cooling drive module 104;

[0078] The heating drive module 103 is used to control the external electric valve to open when receiving the first opening signal sent by the control module 102 to connect to the waste heat recovery heating system;

[0079] The refrigeration driving module 104 is configured to control the operation of the external compressor upon receiving the second start signal from the control module 102 .

[0080] In an embodiment of the present invention, a three-coil system based on a prefabricated shelter is provided. This system uses a data acquisition module to collect the indoor and outdoor temperatures of the prefabricated shelter and transmits these data to a control module. The control module determines the operating mode based on a preset first and second temperature ranges, as well as the collected indoor and outdoor temperatures. When the indoor temperature is detected to be below the lower limit of the first temperature range and the outdoor temperature is below a first preset threshold, the system activates heating mode and sends a first activation signal to the heating driver module. The heating driver module then controls an external electric valve to open, connecting to the waste heat recovery heating system within the data center. This utilizes the data center's waste heat to meet the heating needs of the water conservancy shelter, while the cooling system remains inactive. When the indoor temperature is detected to be above the upper limit of the second temperature range and the outdoor temperature is above a second preset threshold, the system activates cooling mode and sends a second activation signal to the cooling driver module. The cooling driver module controls the external compressor to operate, meeting the indoor cooling needs, while the heating system remains inactive. This system, through the aforementioned process, not only addresses the aesthetic and installation challenges of traditional split air conditioners with external outdoor units, but also significantly improves energy efficiency through waste heat recovery.

[0081] like Figure 2 As shown, the acquisition module 101 includes an indoor temperature sensor T and an outdoor temperature sensor T1;

[0082] The indoor temperature sensor T is used to detect the indoor temperature of the prefabricated shelter and convert the indoor temperature into an electrical signal to be transmitted to the control module 102;

[0083] The outdoor temperature sensor T1 is used to detect the outdoor temperature of the prefabricated shelter and convert the outdoor temperature into an electrical signal to be transmitted to the control module 102;

[0084] The indoor temperature sensor T and the outdoor temperature sensor T1 are connected to the control module 102 respectively.

[0085] In this embodiment of the present invention, the indoor temperature sensor and outdoor temperature sensor included in the acquisition module are both connected to the control module. The indoor temperature sensor, located inside the water conservancy shelter, monitors the indoor temperature in real time and converts the detected temperature value into an electrical signal, which is transmitted to the control module. This provides the control module with a basis for determining whether to activate heating or cooling mode. The outdoor temperature sensor, located outside the water conservancy shelter, monitors the outdoor temperature outside the shelter and similarly converts the temperature value into an electrical signal, which is transmitted to the control module. This assists the control module in determining the mode based on the outdoor ambient temperature.

[0086] For example, in winter, when the outdoor temperature sensor detects that the outdoor temperature is lower than 5°C (i.e., in a winter environment) and the indoor temperature sensor detects that the indoor temperature is lower than 5°C, the control module will determine to turn on the heating mode, send a first start signal to the heating drive module, control the external electric valve to open, and connect to the waste heat recovery heating system of the data center; in summer, when the outdoor temperature sensor detects that the outdoor temperature is higher than 20°C (in a summer environment), and the indoor temperature sensor detects that the indoor temperature is higher than 30°C, the control module will determine to turn on the cooling mode, send a second start signal to the cooling drive module, and control the operation of the external compressor, which effectively solves the aesthetic and installation restrictions brought about by the placement of the outdoor unit of the traditional split air conditioner, while realizing the efficient utilization of the waste heat of the data center and improving the energy saving, safety and reliability of the system.

[0087] like Figure 3 As shown, the heating drive module 103 in the above embodiment includes: a water supply pipe 1, an electric valve 3, a water-side heat exchange coil 6 and a return pipe 2;

[0088] Wherein, the water supply pipe 1 is used to input hot water into the waste heat recovery heating system;

[0089] The electric valve 3 is used to open or close according to the electrical signal sent by the control module, connecting the heating circuit when opened and cutting off the waste heat recovery heating system when closed;

[0090] The water-side heat exchange coil 6 is used to provide heat to the cabin through heat exchange;

[0091] The return pipe 2 is used to return the low-temperature water after cooling;

[0092] The first end of the water supply pipe 1 is connected to the water outlet of the external waste heat recovery heating system, and the second end of the water supply pipe 1 is connected to the first end of the electric valve 3;

[0093] The second end of the electric valve 3 is connected to the first end of the water-side heat exchange coil 6;

[0094] The second end of the water side heat exchange coil 6 is connected to the second end of the return pipe 2;

[0095] The first end of the return pipe 2 is connected to the water inlet of the waste heat recovery heating system.

[0096] In an embodiment of the present invention, a heating drive module comprises a water supply pipe, an electric valve, a water-side heat exchange coil, and a return pipe, forming a closed loop. This module is linked to the data center's waste heat recovery and heating system to achieve cabin heating. The water supply pipe is responsible for transporting hot water recovered from the data center to the interior of the cabin. The electric valve, acting as a control node, is driven by an electrical signal from the control module. Upon receiving a first opening signal, the electric valve automatically opens, connecting the water supply pipe to the water-side heat exchange coil, allowing hot water to flow into the coil. It closes when the temperature reaches a target or a shutdown signal is received, cutting off the heating circuit. The water-side heat exchange coil, acting as a core heat exchange component, releases heat to the cabin environment through heat exchange between the hot water in the pipe and the air in the cabin. Its first end is connected to the outlet of the electric valve, and its second end is connected to the return pipe, forming a hot water flow path. The return pipe's first end is connected to the water inlet of the waste heat recovery system, and its second end is connected to the outlet of the water-side heat exchange coil. The return pipe collects low-temperature return water after heat exchange and transports it back to the waste heat recovery system for reheating, forming a cycle. This module achieves efficient utilization of waste heat from the data center and significantly reduces energy consumption by precisely controlling the opening and closing of electric valves and the hot water circulation path. At the same time, it is tightly integrated with the side boxes of the square cabin through an integrated piping design, saving space and improving system integrity.

[0097] like Figure 4 As shown, the refrigeration drive module 104 includes: a compressor 4, a mechanical refrigeration evaporator heat exchange coil 7, a throttle valve 5 and a mechanical refrigeration condenser heat exchange coil 8;

[0098] Wherein, the compressor 4 is used to drive the refrigerant circulation;

[0099] The heat exchange coil 7 of the mechanical refrigeration evaporator is used to achieve cabin cooling by absorbing heat through evaporation;

[0100] The throttle valve 5 is used to throttle and reduce the pressure of the high-pressure refrigerant to control the flow rate;

[0101] The heat exchange coil 8 of the mechanical refrigeration condenser is used to discharge heat through condensation;

[0102] The first end of the compressor 4 is connected to the first end of the heat exchange coil 8 of the mechanical refrigeration condenser, and the second end of the compressor 4 is connected to the first end of the heat exchange coil 7 of the mechanical refrigeration evaporator;

[0103] The second end of the heat exchange coil 8 of the mechanical refrigeration condenser is connected to the first end of the throttle valve 5;

[0104] The second end of the throttle valve 5 is connected to the second end of the heat exchange coil 7 of the mechanical refrigeration evaporator.

[0105] In an embodiment of the present invention, the refrigeration drive module is based on the principle of direct expansion refrigeration. It consists of a compressor, a mechanical refrigeration evaporator heat exchange coil, a throttle valve, and a mechanical refrigeration condenser heat exchange coil to form a closed loop system to meet the summer cooling needs of the prefabricated water conservancy shelter. The compressor serves as the power core and, driven by a motor, compresses low-pressure gaseous refrigerant into high-pressure gaseous refrigerant. The high-pressure gaseous refrigerant is then transported from a first end to the mechanical refrigeration condenser heat exchange coil. The first end of the mechanical refrigeration condenser heat exchange coil is connected to the compressor outlet, and the second end is connected to the throttle valve inlet. Its function is to convert the high-pressure gaseous refrigerant into a liquid through the heat released by the condensation process. The throttle valve, as a key control component, throttles and reduces the pressure of the high-pressure liquid refrigerant, turning it into a low-pressure liquid and controlling the flow rate. The high-pressure gaseous refrigerant is then output from a second end to the mechanical refrigeration evaporator heat exchange coil. The first end of the mechanical refrigeration evaporator heat exchange coil is connected to the second end of the compressor, and the second end is connected to the throttle valve outlet. The low-pressure liquid refrigerant absorbs heat during evaporation to reduce the temperature inside the shelter. The evaporated low-pressure gaseous refrigerant then enters the compressor again, completing the refrigeration cycle. The module achieves precise control of the temperature inside the cabin through the orderly linkage of various components. The entire system is integrated into the shell of the three-coil device and is tightly integrated with the side box of the cabin, avoiding the installation drawbacks of traditional split-type air-conditioning outdoor units. At the same time, by optimizing the refrigerant flow path and heat exchange efficiency, it ensures high efficiency and reliability of summer cooling.

[0106] Please refer to Figure 3 , the above embodiment further comprises: a first fan 9;

[0107] Wherein, the first fan 9 is used to accelerate the air flow near the water side heat exchange coil 6;

[0108] The first fan 9 is arranged on a side away from the water-side heat exchange device 6 .

[0109] In this embodiment of the present invention, the first fan is a key auxiliary component of the heating drive module, designed to improve the heating efficiency of the water-side heat exchange coil. Driven by a motor, the first fan generates airflow, forcing air across the surface of the water-side heat exchange coil. When the waste heat recovery heating system is operating, hot water transported by the water supply pipe flows through the water-side heat exchange coil, raising the coil surface temperature. At this point, the first fan accelerates air flow, significantly increasing the heat exchange rate between the air and the coil. On the one hand, the rapidly flowing air more efficiently absorbs heat emitted by the coil, accelerating the temperature rise within the shelter. On the other hand, the continuous air circulation prevents heat accumulation near the coil, ensuring a stable heat exchange process. This design not only enhances winter heating performance but also provides a more uniform temperature distribution within the shelter through mechanical air supply. Furthermore, the integrated fan and coil arrangement allows the components to be compactly arranged within the three-coil housing, tightly integrated with the side box of the water conservancy shelter. This saves space and avoids the installation complexity of traditional external fans, further improving the overall energy efficiency and prefabrication of the system.

[0110] Please refer to Figure 4 , the above embodiment further comprises: a second fan 13 and a third fan 14;

[0111] Wherein, the second fan is used to assist the mechanical refrigeration condenser in dissipating heat;

[0112] The third fan is used to enhance the heat absorption of the mechanical refrigeration evaporator;

[0113] The second fan is arranged on a side away from the heat exchange coil of the mechanical refrigeration condenser;

[0114] The third fan is arranged on a side away from the heat exchange coil of the mechanical refrigeration evaporator.

[0115] In an embodiment of the present invention, the second and third fans are key auxiliary components of the refrigeration drive module, serving the heat exchange process between the mechanical refrigeration condenser heat exchange coil and the mechanical refrigeration evaporator heat exchange coil, respectively. When the refrigeration system is running, the compressor delivers high-pressure gaseous refrigerant to the mechanical refrigeration condenser heat exchange coil, where the refrigerant releases heat and condenses into liquid. At this time, the second fan accelerates the air flow outside the coil by forced air supply, significantly improving the heat dissipation efficiency and ensuring that the refrigerant quickly completes the phase transition; when the low-pressure liquid refrigerant flows through the mechanical refrigeration evaporator heat exchange coil, the third fan absorbs heat by evaporation to reduce the temperature inside the cabin. By accelerating the air flow through the coil surface, the heat exchange between the air and the refrigerant is enhanced, making the heat absorption process more efficient, thereby improving the cooling effect.

[0116] Please refer to Figure 2 , the control module 102 in the above embodiment includes: an electric valve control unit D, a compressor control unit Y;

[0117] The control module 102 is configured to, based on a preset first temperature interval and a preset second temperature interval, determine to start the heating mode when detecting that the indoor temperature is lower than the lower limit of the first temperature interval and the outdoor temperature is lower than a first preset threshold, and send a first start signal to the electric valve control unit D; and determine to start the cooling mode when detecting that the indoor temperature is higher than the second temperature upper limit and the outdoor temperature is higher than the second preset threshold, and send a second start signal to the compressor control unit Y;

[0118] The electric valve control unit D is used to control the external electric valve 3 to open and connect to the waste heat recovery heating system when receiving the first opening signal sent by the control module;

[0119] The compressor control unit Y is used to control the operation of the external compressor 4 when receiving the second start signal sent by the control module.

[0120] In an embodiment of the present invention, the control module integrates an electric valve control unit and a compressor control unit, and realizes intelligent switching between heating and cooling modes by comparing the preset temperature with the real-time temperature data. When the sensor detects that the indoor temperature is lower than the lower limit of the first temperature range and the outdoor temperature is lower than the first preset threshold, the control module determines that the heating mode needs to be turned on and sends a first opening signal to the electric valve control unit. The unit then drives the electric valve to open, connecting the water supply pipe and the water-side heat exchange coil, and connecting to the data center waste heat recovery heating system; when the indoor temperature is higher than the second temperature upper limit and the outdoor temperature is higher than the second preset threshold, the control module determines that the cooling mode needs to be turned on and sends a second opening signal to the compressor control unit. The unit starts the compressor and drives the refrigeration system to operate, achieving cooling through the mechanical refrigeration evaporator heat exchange coil and condenser heat exchange coil. The control module ensures the mutually exclusive operation of the heating and cooling paths through independent control of the dual units to avoid energy waste.

[0121] Please refer to Figure 2 The control module 102 in the above embodiment is further used to determine to shut down the heating mode when it is detected that the indoor temperature is not lower than the lower limit of the first temperature range and the outdoor temperature is not lower than the first preset threshold, and send a first shutdown signal to the electric valve control unit; when it is detected that the indoor temperature is not higher than the second temperature upper limit and the outdoor temperature is not higher than the second preset threshold, determine to shut down the cooling mode and send a second shutdown signal to the compressor control unit.

[0122] In the embodiment of the present invention, the core function of the control module is to intelligently adjust the start and stop of the heating and cooling modes according to indoor and outdoor temperature parameters. During the heating mode, when the control module detects through the temperature sensor installed in the water conservancy shelter that the indoor temperature is not lower than the lower limit of the first temperature range (i.e., reaching or exceeding the preset shutdown temperature in the range of 5-20°C, such as 10°C), and detects through the external temperature sensor T1 that the outdoor ambient temperature is not lower than the first preset threshold (e.g., 5°C set in winter), it determines that the current indoor and outdoor environments have met the heating stop conditions, and then sends a first shutdown signal to the electric valve control unit D to close the electric valve on the waste heat recovery water supply pipe, stopping the heating mode operation to avoid energy waste. When operating in the cooling mode, if the control module detects that the indoor temperature is not higher than the upper limit of the second temperature range (i.e., falling to the preset shutdown temperature in the range of 25-35°C, such as 35°C), and the outdoor temperature is not higher than the second preset threshold (e.g., 20°C set in summer), it determines that the indoor and outdoor environments no longer need cooling, and sends a second shutdown signal to the compressor control unit Y to shut down the compressor of the direct expansion refrigeration system, terminating the cooling mode. In this way, the system implements energy-saving control logic that dynamically adjusts according to the actual environment, ensuring that the temperature control requirements in the water conservancy shelter can be efficiently and accurately met in different seasons.

[0123] Please refer to Figure 2 , the control module 102 in the above embodiment further includes: a manual control unit S;

[0124] The manual control unit S is used to manually control the opening and closing of the external electric valve and the compressor.

[0125] In the embodiment of the present invention, the manual control unit S integrated in the control module is to deal with the transition season.

[0126] It is an important component of the demand, allowing users to directly intervene in the start and stop status of the electric valve and compressor through the controller. In the transition season, when the indoor and outdoor temperatures are in a non-extreme range but still need to be fine-tuned, the electric valve can be opened through the manual control unit to use the waste heat of the data center for local heating or start the compressor for temporary cooling. In manual control mode, users can adjust the system operation status in real time according to actual on-site needs to avoid the frequent start and stop phenomenon that may occur in the automatic mode in the critical temperature range. This design that combines automatic and manual control not only ensures the intelligent operation of the system under normal working conditions, but also gives on-site operators the ability to intervene flexibly, thereby improving the adaptability and reliability of the three-coil system in complex scenarios.

[0127] like Figure 5 As shown, in an embodiment of the present invention, the heating drive module and the cooling drive module are integrated into the box body 11 and are tightly combined with the side box body of the water conservancy shelter 10 , and the control module is integrated into the controller 12 .

[0128] like Figure 6 To more clearly illustrate the technical solutions and advantages of the present invention, a control method for a three-coil system based on a prefabricated shelter is provided below. The method includes:

[0129] Step 201: Using a collection module to collect the indoor temperature of the prefabricated shelter, and sending the indoor temperature and outdoor temperature to a control module;

[0130] Step 202: Using the control module, based on the preset first temperature range and the second temperature range, when detecting that the indoor temperature is lower than the lower limit of the first temperature range and the outdoor temperature is lower than the first preset threshold, determining to start the heating mode and sending a first start signal to the heating drive module;

[0131] Step 203: When it is detected that the indoor temperature is higher than the second upper temperature limit and the outdoor temperature is higher than the second preset threshold, the cooling mode is turned on and a second turn-on signal is sent to the cooling drive module;

[0132] Step 204: Utilizing the heating drive module, upon receiving the first opening signal from the control module, controlling the external electric valve to open, thereby connecting to the waste heat recovery heating system;

[0133] Step 205: Utilizing the refrigeration driving module, upon receiving the second start signal sent by the control module, controlling the operation of the external compressor.

[0134] It should be understood that the structure illustrated in the embodiments of the present invention does not constitute a specific limitation on a three-coil system based on a prefabricated shelter. In other embodiments of the present invention, a three-coil system based on a prefabricated shelter may include more or fewer components than shown, or may combine or separate certain components, or arrange the components differently. The illustrated components may be implemented in hardware, software, or a combination of hardware and software.

[0135] The information interaction, execution process, etc. between the units in the above-mentioned device are based on the same concept as the embodiment of the method of the present invention. For specific contents, please refer to the description in the embodiment of the method of the present invention and will not be repeated here.

[0136] An embodiment of the present invention further provides a three-coil system based on a prefabricated shelter, comprising: at least one memory and at least one processor;

[0137] at least one memory for storing a machine-readable program;

[0138] At least one processor is configured to call a machine-readable program to execute a method for analyzing resource dependencies based on alarm data in any embodiment of the present invention.

[0139] An embodiment of the present invention further provides a computer-readable medium having computer instructions stored thereon. When the computer instructions are executed by a processor, the processor executes a control method for a three-coil system based on a prefabricated shelter according to any embodiment of the present invention.

[0140] Specifically, a system or device equipped with a storage medium can be provided, on which software program codes that implement the functions of any of the above-mentioned embodiments are stored, and a computer (or CPU or MPU) of the system or device can be enabled to read and execute the program codes stored in the storage medium.

[0141] In this case, the program code itself read from the storage medium can realize the function of any one of the above-mentioned embodiments, and thus the program code and the storage medium storing the program code constitute part of the present invention.

[0142] Examples of storage media for providing program code include floppy disks, hard disks, magneto-optical disks, optical disks (such as CD-ROM, CD-R, CD-RW, DVD-ROM, DVD-RAM, DVD-RW, DVD+RW), magnetic tapes, non-volatile memory cards, and ROMs. Alternatively, the program code can be downloaded from a server computer via a communication network.

[0143] In addition, it should be clear that the functions of any of the above embodiments can be achieved not only by executing the program code read by the computer, but also by enabling the operating system operating on the computer to complete part or all of the actual operations based on the instructions of the program code.

[0144] In addition, it can be understood that the program code read from the storage medium is written into the memory provided in the expansion board inserted into the computer or into the memory provided in the expansion unit connected to the computer, and then based on the instructions of the program code, the CPU installed on the expansion board or expansion unit is enabled to perform part or all of the actual operations, thereby realizing the functions of any of the above embodiments.

[0145] Each embodiment of the present invention has at least the following beneficial effects:

[0146] 1. In an embodiment of the present invention, a three-coil system based on a prefabricated cabin is provided. The system collects the indoor temperature and outdoor temperature of the prefabricated cabin through a collection module and sends it to a control module. The control module can make a mode judgment based on the preset first temperature interval, the second temperature interval, and the collected indoor temperature and outdoor temperature. When it is detected that the indoor temperature is lower than the lower limit of the first temperature interval and the outdoor temperature is lower than the first preset threshold, it is determined to turn on the heating mode, and a first opening signal is sent to the heating drive module. At this time, the heating drive module controls the external electric valve to open, and connects to the waste heat recovery heating system in the data center, so as to realize the use of the waste heat of the data center to meet the heating demand in the water conservancy cabin, and the cooling system is not turned on. When it is detected that the indoor temperature is higher than the upper limit of the second temperature interval and the outdoor temperature is higher than the second preset threshold, it is determined to turn on the cooling mode, and a second opening signal is sent to the cooling drive module. The cooling drive module controls the operation of the external compressor to meet the indoor cooling needs, and the heating system is not turned on. Through the above process, the system not only solves the aesthetic and installation problems of the external outdoor unit of the traditional split air conditioner, but also significantly improves energy utilization through waste heat recovery;

[0147] 2. In the embodiment of the present invention, the indoor temperature sensor and outdoor temperature sensor included in the acquisition module are both connected to the control module. The indoor temperature sensor is set inside the water conservancy cabin and can detect the indoor temperature inside the cabin in real time. The detected temperature value is converted into an electrical signal and transmitted to the control module, providing the cabin temperature basis for the control module to determine whether to turn on the heating or cooling mode. The outdoor temperature sensor is set outside the water conservancy cabin and is used to detect the outdoor temperature outside the cabin. It also converts the temperature value into an electrical signal and transmits it to the control module, assisting the control module in making mode decisions based on the outdoor ambient temperature.

[0148] 3. In an embodiment of the present invention, the heating drive module comprises a water supply pipe, an electric valve, a water-side heat exchange coil, and a return pipe, forming a closed loop. This module is linked to the data center's waste heat recovery and heating system to achieve cabin heating. The water supply pipe is responsible for transporting hot water recovered from the data center to the interior of the cabin. The electric valve, acting as a control node, is driven by an electrical signal from the control module. Upon receiving a first opening signal, the electric valve automatically opens, connecting the water supply pipe to the water-side heat exchange coil, allowing hot water to flow into the coil. It closes when the temperature reaches a target or a shutdown signal is received, cutting off the heating circuit. The water-side heat exchange coil, acting as a core heat exchange component, releases heat to the cabin environment through heat exchange between the hot water in the pipe and the air in the cabin. Its first end is connected to the outlet of the electric valve, and its second end is connected to the return pipe, forming a hot water flow path. The return pipe's first end is connected to the water inlet of the waste heat recovery system, and its second end is connected to the outlet of the water-side heat exchange coil. The return pipe is used to collect low-temperature return water after heat exchange and transport it back to the waste heat recovery system for reheating, thus forming a cycle. This module achieves efficient utilization of waste heat from the data center and significantly reduces energy consumption by precisely controlling the opening and closing of electric valves and the hot water circulation path. At the same time, it is tightly integrated with the side boxes of the square cabin through an integrated piping design, saving space and improving system integrity.

[0149] It should be noted that not all steps and modules in the above processes and system structure diagrams are required, and certain steps or modules can be omitted according to actual needs. The execution order of each step is not fixed and can be adjusted as needed. The system structure described in the above embodiments can be a physical structure or a logical structure, that is, some modules may be implemented by the same physical entity, or some modules may be implemented by multiple physical entities, or may be implemented by certain components in multiple independent devices.

[0150] In the above embodiments, the hardware unit can be realized by mechanical means or electrical means. For example, a hardware unit can include permanent dedicated circuits or logic (such as special processors, FPGA or ASIC) to complete the corresponding operations. The hardware unit can also include programmable logic or circuits (such as general-purpose processors or other programmable processors), which can be temporarily set up by software to complete the corresponding operations. Concrete implementation (mechanical means or dedicated permanent circuits or temporarily set circuits) can be determined based on the consideration on cost and time.

[0151] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. The three-coil system based on prefabricated shelter is characterized by: The system includes: Acquisition module, control module, heating drive module and cooling drive module; Wherein, the control module is connected to the acquisition module, the heating drive module and the cooling drive module respectively; The acquisition module is used to collect the indoor temperature and the outdoor temperature of the prefabricated shelter, and send the indoor temperature and the outdoor temperature to the control module; The control module is configured to, based on a preset first temperature interval and a preset second temperature interval, determine to start the heating mode when detecting that the indoor temperature is lower than a lower limit of the first temperature interval and the outdoor temperature is lower than a first preset threshold, and send a first start signal to the heating drive module; and determine to start the cooling mode when detecting that the indoor temperature is higher than an upper limit of the second temperature interval and the outdoor temperature is higher than a second preset threshold, and send a second start signal to the cooling drive module; The heating drive module is configured to control the external electric valve to open when receiving the first opening signal sent by the control module, so as to connect to the waste heat recovery heating system; The refrigeration driving module is used to control the operation of the external compressor when receiving the second start signal sent by the control module.

2. The system according to claim 1, wherein: The acquisition module includes an indoor temperature sensor and an outdoor temperature sensor; The indoor temperature sensor is used to detect the indoor temperature of the prefabricated shelter and convert the indoor temperature into an electrical signal to be transmitted to the control module; The outdoor temperature sensor is used to detect the outdoor temperature of the prefabricated shelter and convert the outdoor temperature into an electrical signal to be transmitted to the control module; The indoor temperature sensor and the outdoor temperature sensor are connected to the control module respectively.

3. The system according to claim 1, wherein: The heating drive module includes: a water supply pipe, an electric valve, a water-side heat exchange coil and a return pipe; Wherein, the water supply pipe is used to input hot water into the waste heat recovery heating system; The electric valve is used to open or close according to the electrical signal sent by the control module, connecting the heating circuit when opened and cutting off the waste heat recovery heating system when closed; The water-side heat exchange coil is used to provide heat to the cabin through heat exchange; The return pipe is used to return the low-temperature water after cooling; The first end of the water supply pipe is connected to the water outlet of the external waste heat recovery heating system, and the second end of the water supply pipe is connected to the first end of the electric valve; The second end of the electric valve is connected to the first end of the water-side heat exchange coil; The second end of the water-side heat exchange coil is connected to the second end of the return pipe; The first end of the return water pipe is connected to the water inlet of the waste heat recovery heating system.

4. The system according to claim 1, wherein: The refrigeration drive module includes: a compressor, a mechanical refrigeration evaporator heat exchange coil, a throttle valve and a mechanical refrigeration condenser heat exchange coil; Wherein, the compressor is used to drive the refrigerant circulation; The heat exchange coil of the mechanical refrigeration evaporator is used to achieve cabin cooling through evaporation and heat absorption; The throttle valve is used to throttle and reduce the pressure of the high-pressure refrigerant to control the flow rate; The heat exchange coil of the mechanical refrigeration condenser is used to discharge heat through condensation; The first end of the compressor is connected to the first end of the heat exchange coil of the mechanical refrigeration condenser, and the second end of the compressor is connected to the first end of the heat exchange coil of the mechanical refrigeration evaporator; The second end of the heat exchange coil of the mechanical refrigeration condenser is connected to the first end of the throttle valve; The second end of the throttle valve is connected to the second end of the heat exchange coil of the mechanical refrigeration evaporator.

5. The system according to claim 1, wherein: further comprising: a first fan; Wherein, the first fan is used to accelerate the air flow near the water-side heat exchange coil; The first fan is arranged on a side away from the water-side heat exchange device.

6. The system according to claim 1, wherein: further comprising: a second fan and a third fan; Wherein, the second fan is used to assist the mechanical refrigeration condenser in dissipating heat; The third fan is used to enhance the heat absorption of the mechanical refrigeration evaporator; The second fan is arranged on a side away from the heat exchange coil of the mechanical refrigeration condenser; The third fan is arranged on a side away from the heat exchange coil of the mechanical refrigeration evaporator.

7. The system according to claim 1, wherein: The control module includes: an electric valve control unit and a compressor control unit; The control module is configured to, based on a preset first temperature interval and a preset second temperature interval, determine to start the heating mode and send a first start signal to the electric valve control unit when detecting that the indoor temperature is lower than a lower limit of the first temperature interval and the outdoor temperature is lower than a first preset threshold; and determine to start the cooling mode and send a second start signal to the compressor control unit when detecting that the indoor temperature is higher than an upper limit of the second temperature interval and the outdoor temperature is higher than a second preset threshold; The electric valve control unit is configured to control the external electric valve to open and connect to the waste heat recovery heating system upon receiving the first opening signal sent by the control module; The compressor control unit is configured to control the operation of the external compressor upon receiving the second start signal sent by the control module.

8. The system according to claim 7, characterized in that The control module is further used to determine to shut down the heating mode when it is detected that the indoor temperature is not lower than the lower limit of the first temperature range and the outdoor temperature is not lower than the first preset threshold, and send a first shutdown signal to the electric valve control unit; when it is detected that the indoor temperature is not higher than the upper limit of the second temperature range and the outdoor temperature is not higher than the second preset threshold, determine to shut down the cooling mode and send a second shutdown signal to the compressor control unit.

9. The system according to claim 8, characterized in that The control module further includes: a manual control unit; Wherein, the manual control unit is used to manually control the opening and closing of the external electric valve and the compressor.

10. The control method of the three-coil system based on the prefabricated shelter according to any one of claims 1 to 9, characterized in that: The method includes: Using the acquisition module to collect the indoor temperature of the prefabricated shelter, and sending the indoor temperature and the outdoor temperature to the control module; The control module is used to determine, based on a preset first temperature interval and a preset second temperature interval, to start a heating mode when it is detected that the indoor temperature is lower than a lower limit of the first temperature interval and the outdoor temperature is lower than a first preset threshold, and to send a first start signal to the heating drive module; and to determine to start a cooling mode when it is detected that the indoor temperature is higher than an upper limit of the second temperature interval and the outdoor temperature is higher than a second preset threshold, and to send a second start signal to the cooling drive module; The heating drive module controls the external electric valve to open and connect to the waste heat recovery heating system when receiving the first opening signal sent by the control module; The refrigeration driving module is used to control the operation of the external compressor when receiving the second start signal sent by the control module.

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