Temperature control device, method, computer device and readable storage medium

Abstract

The application relates to a temperature control device, a method, a computer device and a readable storage medium, one end of a waste heat extraction module is in contact with a heat source of a dry-type transformer, the other end of the waste heat extraction module is arranged in a temperature rising and falling module, the heat of the dry-type transformer is obtained through the waste heat extraction module, and the heat is released into the temperature rising and falling module; a control module connected with the temperature rising and falling module and the waste heat extraction module respectively obtains working load information of the dry-type transformer, the working load information is used for controlling the temperature rising and falling module to convert and process the obtained heat to work in a target mode, the target mode includes one of a normal load mode and an abnormal load mode; the application realizes recycling of waste heat of the dry-type transformer, and different working temperature rising or temperature falling processes can be selected according to different working loads of the dry-type transformer, and the waste heat recycling efficiency of the dry-type transformer is improved.

Description

Technical Field

[0001] This invention relates to the field of transformer residual energy utilization, and in particular to a temperature control device, method, computer equipment, and readable storage medium. Background Technology

[0002] With the continuous increase in electricity demand, users commonly use high-power cooling equipment such as air conditioners during hot weather, leading to a surge in the load on transformers in power distribution rooms. Commonly used dry-type transformers have an operating efficiency of around 90%. Under high load conditions, the heat generated inside the transformer increases, causing the equipment temperature to rise. Therefore, dry-type transformers also require heat dissipation. Existing cooling methods for dry-type transformers are divided into natural air cooling and forced air cooling. With natural air cooling, the transformer can operate continuously at its rated capacity for extended periods. With forced air cooling, the transformer's output capacity can be increased by 50%, so most dry-type transformers adopt forced air cooling. Specifically, a fan is installed under the windings. When the winding temperature exceeds a set value, the fan turns on, increasing the airflow speed and enhancing convective heat transfer between the air and the winding surface, thus accelerating heat dissipation and cooling of the windings.

[0003] However, conventional dry-type transformer cooling only dissipates heat without recycling it. According to incomplete statistics, in urban power grids, the energy lost as heat by step-down transformers at voltage levels of 35kV to 220kV accounts for approximately 1.6% of the generated electricity. Therefore, the waste heat from dry-type transformers has great potential for utilization. Summary of the Invention

[0004] Therefore, it is necessary to provide a temperature control device, method, computer equipment, and readable storage medium to address the aforementioned technical problems.

[0005] A temperature control device, used in an air temperature regulation system, includes:

[0006] Heating and cooling modules;

[0007] The waste heat extraction module has one end in contact with the heat source of the dry-type transformer and the other end in the heating and cooling module. The waste heat extraction module is used to obtain the heat from the dry-type transformer and release the heat into the heating and cooling module.

[0008] The control module is connected to the heating and cooling module and the waste heat extraction module respectively. It is used to obtain the working load information of the dry-type transformer and control the heating and cooling module to convert the obtained heat to work in a target mode according to the working load information. The target mode includes one of the normal load mode and the abnormal load mode.

[0009] In one embodiment, it further includes:

[0010] A temperature acquisition module, connected to the control module, is used to acquire ambient temperature information of the area where the temperature is to be adjusted;

[0011] The control module is also used to control the heating and cooling module to perform temperature regulation processing in the target mode according to the workload information and the ambient temperature information.

[0012] In one embodiment, the control module includes:

[0013] The parameter generation unit is used to generate temperature adjustment parameters based on the ambient temperature information of the area to be adjusted when the workload information meets the preset load conditions.

[0014] A temperature control unit, connected to the parameter generation unit, is used to control the heating and cooling module to perform temperature adjustment processing on the area to be adjusted in the target mode according to the temperature adjustment parameters, so that the ambient temperature of the area to be adjusted meets the preset ambient temperature.

[0015] In one embodiment, it includes:

[0016] Coil heat exchanger;

[0017] The heating and cooling module includes a generator, a condenser, an evaporator, an absorber, a heat exchanger, and a pressure pump. A first shut-off valve and a second shut-off valve are respectively installed at both ends of the coil heat exchanger. The generator, condenser, evaporator, and absorber are connected sequentially via pipes. The bottom of the absorber is connected to the generator via a pipe passing through the heat exchanger. The pressure pump is installed on the pipe between the bottom of the heat exchanger and the generator. A first three-way valve and a second three-way valve are respectively installed at both ends of the pressure pump. A pressure valve is installed in the channel between the generator and the condenser.

[0018] In one embodiment, the preset load condition includes the dry-type transformer being under rated load, the temperature regulation parameters include a first valve parameter, a first cooling parameter, and a heating parameter, and the control module includes a parameter generation unit and a temperature control unit;

[0019] The parameter generation unit is also used to generate the valve parameters, the first refrigeration parameters, and the heating parameters when the dry-type transformer is under rated load.

[0020] The temperature control unit is also used to control the operating state of each valve according to the valve parameters, so as to establish a temperature regulation loop among the generator, the condenser, the evaporator and the absorber; the temperature regulation loop includes a heating regulation loop and a first cooling regulation loop;

[0021] The temperature control unit is further configured to control the first cooling regulation circuit to cool the area to be adjusted according to the first cooling parameters; or

[0022] The temperature control unit is also used to control the temperature adjustment circuit to heat the area to be adjusted according to the heating parameters.

[0023] In one embodiment, the valve parameters include first refrigeration valve parameters; the temperature control unit includes:

[0024] The first cooling control subunit is used to control the first shut-off valve and the second shut-off valve to be in a closed state, the first three-way valve and the second three-way valve to be in a straight-through state, and the pressure valve to be in an open state according to the parameters of the first refrigeration valve, so as to construct the first cooling regulation loop among the generator, the condenser, the evaporator and the absorber.

[0025] In one embodiment, the valve parameters include heating valve parameters; the temperature control unit further includes:

[0026] The temperature control subunit is used to control the shut-off valve to be in the open state, the three-way valve to be in the side-open state and the pressure valve to be in the closed state according to the heating valve parameters, so as to form the temperature regulation loop between the generator, the condenser, the evaporator and the absorber.

[0027] In one embodiment, the preset load condition includes the dry-type transformer being in a low-load state, the temperature regulation parameters include valve parameters, a second refrigeration parameter, and a pressure regulation parameter, the valve parameters include a second refrigeration valve parameter, and the temperature regulation circuit includes a second cooling regulation circuit;

[0028] The parameter generation unit is also used to generate the valve parameters, the second refrigeration parameters, and the pressure regulating parameters when the dry-type transformer is in a low-load state.

[0029] The temperature control unit is also used to control the working state of the valve switch according to the second refrigeration valve parameters and the pressure regulating parameters, so as to establish a second cooling regulation loop among the generator, the condenser, the evaporator, the absorber, and the pressure pump;

[0030] The temperature control unit is also used to control the second cooling regulation circuit to cool the area to be adjusted according to the second cooling parameters.

[0031] In one embodiment, the valve parameters include a second refrigeration parameter; the temperature control unit includes:

[0032] The second cooling control subunit is used to control the shut-off valve to be in a closed state according to the parameters of the second refrigeration valve.

[0033] The second cooling control subunit is also used to control the pressure pump to perform pressure regulation processing according to the pressure regulation parameters when the pressure value inside the generator meets the preset pressure regulation conditions, so as to regulate the pressure value inside the generator.

[0034] The second cooling control subunit is also used to, when the pressure value inside the regulated generator meets the preset refrigeration pressure, to have the three-way valve in a straight-through state and the pressure valve in an open state under the pressure inside the generator, so as to establish the second cooling regulation loop between the generator, the condenser, the evaporator, the absorber and the pressure pump.

[0035] In one embodiment, the heating and cooling module includes a heat pipe, which is connected to the internal windings of the dry-type transformer by a potting method.

[0036] A temperature control method is applied to an air temperature regulation system, the air temperature regulation system including a heating and cooling module and a waste heat extraction module. One end of the waste heat extraction module is in contact with the heat source of a dry-type transformer, and the other end of the waste heat extraction module is disposed in the heating and cooling module. The waste heat extraction module is used to extract heat from the dry-type transformer and release the heat to the heating and cooling module. The temperature control method includes:

[0037] The working load information of the dry-type transformer is obtained, and the heating and cooling module is controlled to convert the obtained heat according to the working load information to operate in a target mode, which includes one of a normal load mode and an abnormal load mode.

[0038] In one embodiment, it further includes:

[0039] Collect ambient temperature information for the area where the temperature needs to be adjusted;

[0040] Based on the workload information and the ambient temperature information, the heating and cooling modules are controlled to perform temperature regulation in the target mode.

[0041] A computer device includes a memory and a processor, wherein the memory stores a computer program that, when executed by the processor, causes the processor to perform the steps of the method described above.

[0042] A computer-readable storage medium having a computer program stored thereon, which, when executed by a processor, implements the steps of the method described above.

[0043] The aforementioned temperature control device, method, computer equipment, and readable storage medium include a temperature control device comprising a heating / cooling module, a waste heat extraction module, and a control module. One end of the waste heat extraction module is in contact with the heat source of the dry-type transformer, and the other end is located within the heating / cooling module. The waste heat extraction module extracts heat from the dry-type transformer and releases it into the heating / cooling module. The control module, connected to both the heating / cooling module and the waste heat extraction module, acquires the operating load information of the dry-type transformer and controls the heating / cooling module to process the acquired heat according to the operating load information to operate in a target mode, which includes either a normal load mode or an abnormal load mode. This achieves the recovery and utilization of waste heat from the dry-type transformer and allows for the selection of different heating or cooling processes based on different operating loads of the dry-type transformer, thereby improving the waste heat recovery efficiency of the dry-type transformer. Attached Figure Description

[0044] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0045] Figure 1 This is a schematic block diagram of the temperature control device in one embodiment;

[0046] Figure 2 This is a schematic diagram of the specific structure of the temperature control device in one embodiment;

[0047] Figure 3 This is a schematic block diagram of the temperature control device in one embodiment;

[0048] Figure 4 This is a schematic block diagram illustrating the specific structure of the control module in one embodiment;

[0049] Figure 5 This is a flowchart illustrating a temperature control method in one embodiment;

[0050] Figure 6 This is a flowchart of a control method for cooling a dry-type transformer in one embodiment. Detailed Implementation

[0051] To make the objectives, technical solutions, and advantages of this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the scope of this application.

[0052] It is understood that the terms "first," "second," etc., used in this application may be used herein to describe various elements, but these elements are not limited by these terms. These terms are only used to distinguish one element from another. For example, without departing from the scope of this application, a first client may be referred to as a second client, and similarly, a second client may be referred to as a first client. Both the first client and the second client are clients, but they are not the same client.

[0053] See Figure 1 This is a schematic block diagram of the temperature control device in one embodiment.

[0054] In this embodiment, the temperature control device is applied to an air temperature regulation system, such as... Figure 1 As shown, the temperature control device includes a heating and cooling module 120, a waste heat extraction module 140, and a control module 160.

[0055] Heating and cooling module 120.

[0056] Optionally, the heating and cooling module 120 can be a device used to heat or cool the area to be regulated; specifically, the heating and cooling module 120 can be a lithium bromide absorption chiller, which is an absorption chiller that uses water as a refrigerant and lithium bromide aqueous solution as an absorbent, and includes a generator, condenser, evaporator, absorber, heat exchanger, and pressure pump.

[0057] Waste heat extraction module 140, one end of which is in contact with the heat source of the dry-type transformer, and the other end of which is located in the heating and cooling module 120. The waste heat extraction module 140 is used to obtain the heat of the dry-type transformer and release the heat into the heating and cooling module 120.

[0058] Optionally, the waste heat extraction module 140 can be a device for recovering excess heat emitted during the operation of a dry-type transformer. Specifically, the waste heat extraction module 140 can be a heat pipe array or other cored heat pipe, through which the waste heat generated by the dry-type transformer can be quickly transferred to the outside of the dry-type transformer. The way in which one end of the waste heat extraction module 140 contacts the heat source of the dry-type transformer can be by injecting one end of the heat pipe array into the epoxy resin of the dry-type transformer winding to fully absorb the heat generated by the winding. That is, the heat pipe array and the internal winding of the dry-type transformer are connected by an injection method to ensure the safety of obtaining waste heat from the heat source of the dry-type transformer. The method of placing the other end of the waste heat extraction module 140 in the heating and cooling module 120 can be by inserting the other end of the heat pipe array into the generator of the heating and cooling module 120. The heat is released to the heating and cooling module in the form that the waste heat generated by the dry-type transformer winding is conducted to the lithium bromide absorption chiller via the heat pipe array.

[0059] The control module 160 is connected to the heating and cooling module 120 and the waste heat extraction module 140 respectively. It is used to acquire the working load information of the dry-type transformer and control the heating and cooling module 120 to convert the acquired heat according to the working load information so that it can work in a target mode. The target mode includes one of a normal load mode and an abnormal load mode.

[0060] Optionally, the control module 160 may be a device that controls the heating or cooling process of the heating and cooling module 120 using the waste heat extraction module 140; specifically, the control module 160 may be a valve installed on the connecting pipe between the components inside the lithium bromide absorption chiller; the working load information may be the working load information of the dry-type transformer during operation, and the working load information includes normal load information and abnormal load information, wherein the normal load information is that the dry-type transformer is operating at its rated load, and the abnormal load information is that the dry-type transformer is operating at a load below its rated load; the normal load mode may be the operating mode of the heating and cooling module when the dry-type transformer is operating at its rated load; the abnormal load mode may be the operating mode of the heating and cooling module when the dry-type transformer is operating at a load below its rated load.

[0061] Optionally, the method for obtaining the operating load information of the dry-type transformer may be obtained through a voltage testing device connected to the dry-type transformer; the method for controlling the heating and cooling module 120 to convert and process the obtained heat according to the operating load information may be as follows: when the dry-type transformer is operating at its rated load, the lithium bromide absorption chiller may be controlled to use the waste heat conducted through the heat pipe pile for heating or cooling; or when the dry-type transformer is operating below its rated load, the lithium bromide absorption chiller may be controlled to use the waste heat conducted through the heat pipe pile for cooling.

[0062] Optionally, the heating and cooling module 120 may be a lithium bromide absorption chiller; the control module 160 includes a first shut-off valve V1, a second shut-off valve V2, a first three-way valve V3, a second three-way valve V4, and a pressure valve V5.

[0063] See Figure 2 This is a schematic diagram of the specific structure of the temperature control device in one embodiment. Figure 2 As shown, the temperature control device includes the lithium bromide absorption chiller, heat pipe coils, a coil heat exchanger, a first shut-off valve V1, a second shut-off valve V2, a first three-way valve V3, a second three-way valve V4, a pressure valve V5, and an air conditioning water tank; the lithium bromide absorption chiller includes a generator, a condenser, an evaporator, an absorber, a heat exchanger, and a pressure pump; the coil heat exchanger is located inside the generator, with water flowing through the pipes for external heating, and the first shut-off valve V1 and the second shut-off valve V2 are respectively installed at both ends of the coil heat exchanger; the generator, the condenser, The evaporator and the absorber are connected in sequence by pipes. The bottom of the absorber is connected to the generator through the heat exchanger via a pipe. A pressure pump is installed on the pipe between the bottom of the heat exchanger and the generator. A first three-way valve V3 and a second three-way valve V4 are respectively installed at both ends of the pressure pump. A pressure valve V5 is installed in the channel between the generator and the condenser. The pressure pump can be a solution circulation pump, which is used to directly send the lithium bromide solution at the bottom of the generator back to the top of the generator for re-spraying and heating.

[0064] The temperature control device provided in this embodiment includes a heating / cooling module, a waste heat extraction module, and a control module. One end of the waste heat extraction module is in contact with the heat source of the dry-type transformer, and the other end is located in the heating / cooling module. The waste heat extraction module extracts heat from the dry-type transformer and releases the heat into the heating / cooling module. The control module, connected to the waste heat extraction module, acquires the operating load information of the dry-type transformer and controls the heating / cooling module to convert the acquired heat to operate in a target mode, which includes one of a normal load mode and an abnormal load mode. This achieves the recovery and utilization of waste heat from the dry-type transformer and allows for the selection of different heating or cooling processes based on different operating loads of the dry-type transformer, thereby improving the waste heat recovery efficiency of the dry-type transformer.

[0065] See Figure 3 This is a schematic block diagram of the temperature control device in one embodiment.

[0066] In this embodiment, the temperature control device includes a heating and cooling module 320, a waste heat extraction module 340, a control module 360, and a temperature acquisition module 380.

[0067] Heating and cooling module 320.

[0068] Waste heat extraction module 340, one end of which is in contact with the heat source of the dry-type transformer, and the other end of which is located in the heating and cooling module 320. The waste heat extraction module 340 is used to obtain the heat from the dry-type transformer and release the heat into the heating and cooling module 320.

[0069] The control module 360 ​​is connected to the heating and cooling module 320 and the waste heat extraction module 340 respectively. It is used to obtain the working load information of the dry-type transformer and control the heating and cooling module 320 to convert the obtained heat according to the working load information so that it can work in a target mode. The target mode includes one of the normal load mode and the abnormal load mode.

[0070] The temperature acquisition module 380 is connected to the control module 360 ​​and is used to acquire the ambient temperature information of the area to be adjusted.

[0071] The control module 360 ​​is also used to control the heating and cooling module 320 to perform temperature regulation processing in the target mode according to the workload information and the ambient temperature information.

[0072] The heating and cooling module 320, waste heat extraction module 340, and control module 360 ​​can be found in [reference needed]. Figure 1The descriptions of the heating and cooling module 120, waste heat extraction module 140, and control module 160 in the embodiment will not be repeated here.

[0073] The temperature-to-be-adjusted area may be the spatial area included by the buildings surrounding the dry-type transformer; the method for collecting the ambient temperature information of the temperature-to-be-adjusted area may be through temperature sensors distributed on the buildings surrounding the dry-type transformer.

[0074] The scenario where the heating / cooling module 320 is controlled to adjust the temperature in the target mode based on the workload information and the ambient temperature information includes: when the dry-type transformer is operating at its rated load and the ambient temperature of the surrounding buildings is too high, controlling the lithium bromide absorption chiller to perform cooling based on the difference between the measured ambient temperature and the preset ambient temperature; when the dry-type transformer is operating at its rated load and the ambient temperature of the surrounding buildings is too low, controlling the lithium bromide absorption chiller to perform heating based on the difference between the measured ambient temperature and the preset ambient temperature; and when the dry-type transformer is operating below its rated load and the ambient temperature of the surrounding buildings is too high, controlling the lithium bromide absorption chiller to perform cooling based on the difference between the measured ambient temperature and the preset ambient temperature. This achieves the recovery and utilization of waste heat from the dry-type transformer, and different heating or cooling processes can be selected according to different workloads of the dry-type transformer, improving the waste heat recovery efficiency of the dry-type transformer.

[0075] See Figure 4 This is a schematic block diagram of the specific structure of the control module in one embodiment.

[0076] In this embodiment, the control module includes a parameter generation unit 420 and a temperature control unit 440.

[0077] The parameter generation unit 420 is used to generate temperature adjustment parameters based on the ambient temperature information of the area to be adjusted when the workload information meets the preset load conditions.

[0078] Optionally, the parameter generation unit 420 may be a controller used to generate temperature regulation parameters when the working load information meets preset load conditions; the preset load conditions may be that the dry-type transformer is in rated load state or that the dry-type transformer is in rated load state; the case of generating temperature regulation parameters based on the ambient temperature information of the area to be regulated may be as follows: when the dry-type transformer is operating at rated load and the ambient temperature of the buildings surrounding the dry-type transformer is too high, a first cooling regulation parameter is generated based on the difference between the measured ambient temperature and the preset ambient temperature; or when the dry-type transformer is operating at rated load and the ambient temperature of the buildings surrounding the dry-type transformer is too low, a heating regulation parameter is generated based on the difference between the measured ambient temperature and the preset ambient temperature; or when the dry-type transformer is operating below rated load and the ambient temperature of the buildings surrounding the dry-type transformer is too high, a second cooling regulation parameter is generated based on the difference between the measured ambient temperature and the preset ambient temperature.

[0079] It should be noted that the first cooling adjustment parameter, the second cooling adjustment parameter, and the heating adjustment parameter can be voltage adjustment signals or power adjustment signals; the voltage adjustment signals corresponding to the first cooling adjustment parameter and the voltage adjustment signals corresponding to the second cooling adjustment parameter can be the same or different.

[0080] Temperature control unit 440, connected to parameter generation unit 420, is used to control the heating and cooling module to perform temperature adjustment processing on the area to be adjusted in the target mode according to the temperature adjustment parameters, so that the ambient temperature of the area to be adjusted meets the preset ambient temperature.

[0081] Optionally, the temperature control unit 440 may be a control structure that controls the lithium bromide absorption chiller to perform cooling or heating treatment according to the temperature adjustment parameters; the preset ambient temperature may be the preset ambient temperature of the building surrounding the dry-type transformer.

[0082] The temperature control device provided in this embodiment includes a heating / cooling module, a waste heat extraction module, a control module, and a temperature acquisition module. The control module includes a parameter generation unit 420 and a temperature control unit 440. One end of the waste heat extraction module is in contact with the heat source of the dry-type transformer, and the other end of the waste heat extraction module is located in the heating / cooling module. The waste heat extraction module obtains heat from the dry-type transformer and releases the heat to the heating / cooling module. The temperature acquisition module, connected to the control module, collects the ambient temperature information of the area to be adjusted. The temperature acquisition module is connected to the heating / cooling module and the waste heat extraction module, respectively. When the workload information meets the preset load conditions, the parameter generation unit 420 connected to the temperature acquisition module generates temperature adjustment parameters based on the ambient temperature information of the area to be adjusted. The temperature control unit 440 connected to the parameter generation unit 420 controls the heating and cooling module to perform temperature adjustment processing on the area to be adjusted in the target mode according to the temperature adjustment parameters, so that the ambient temperature of the area to be adjusted meets the preset ambient temperature. This realizes the recovery and utilization of waste heat from the dry-type transformer, and different heating or cooling processes can be selected according to different workloads of the dry-type transformer, thereby improving the waste heat recovery efficiency of the dry-type transformer.

[0083] In one embodiment, the preset load condition includes the dry-type transformer being under rated load, the temperature regulation parameters include a first valve parameter, a first cooling parameter, and a heating parameter, and the control module includes a parameter generation unit and a temperature control unit; the parameter generation unit is further configured to generate the valve parameter, the first cooling parameter, and the heating parameter when the dry-type transformer is under rated load; the temperature control unit is further configured to control the operating state of each valve according to the valve parameter, so as to establish a temperature regulation loop among the generator, the condenser, the evaporator, and the absorber; the temperature regulation loop includes a heating regulation loop and a first cooling regulation loop; the temperature control unit is further configured to control the first cooling regulation loop to cool the area to be regulated according to the first cooling parameter; or the temperature control unit is further configured to control the heating regulation loop to heat the area to be regulated according to the heating parameter.

[0084] Optionally, the valve parameters include first refrigeration valve parameters; the temperature control unit includes: a first cooling control subunit, used to control the first shut-off valve and the second shut-off valve to be in a closed state, the first three-way valve and the second three-way valve to be in a straight-through state and the pressure valve to be in an open state according to the first refrigeration valve parameters, so as to construct the first cooling regulation loop among the generator, the condenser, the evaporator and the absorber.

[0085] For details, please refer to [link / reference]. Figure 2 When the dry-type transformer is operating at its rated load and the ambient temperature of the buildings surrounding the dry-type transformer is higher than the preset ambient temperature, the scenario where the first cooling regulation circuit is controlled according to the first refrigeration parameters to cool the area to be regulated can be that the first cooling control subunit controls the first shut-off valve V1 and the second shut-off valve V2 to be closed, the first three-way valve V3 and the second three-way valve V4 to be in a straight-through state, and the pressure valve V5 to be in an open state according to the first refrigeration valve parameters. At this time, the lithium bromide solution in the generator absorbs the heat from the condenser section of the heat pipe, and water vapor is generated from the solution. After passing through the pressure valve V5, it enters the condenser. The water vapor liquefies into water in the condenser and flows into the bottom of the evaporator. The water at the bottom is pumped to the spray pipe, and the water is sprayed and evaporated on the surface of the heat exchange tube, carrying away the heat of the air conditioning chilled water in the heat exchange tube, thus cooling the air conditioning chilled water and achieving refrigeration. The water vapor evaporated in the evaporator enters the absorber and is absorbed by the lithium bromide solution. The lithium bromide solution with reduced concentration is cooled by the heat exchanger and then re-enters the generator.

[0086] Optionally, the valve parameters include heating valve parameters; the temperature control unit further includes a temperature rise control subunit, used to control the shut-off valve to be in the open state, the three-way valve to be in the side-open state and the pressure valve to be in the closed state according to the heating valve parameters, so as to construct the temperature rise regulation loop between the generator, the condenser, the evaporator and the absorber.

[0087] For details, please refer to [link / reference]. Figure 2When the dry-type transformer is operating at its rated load and the ambient temperature of the buildings surrounding the transformer is lower than the preset ambient temperature, the scenario where the heating control circuit is used to heat the area to be adjusted according to the heating parameters can be that the heating control subunit controls the first shut-off valve V1 and the second shut-off valve V2 to be in the open state, the first three-way valve V3 and the second three-way valve V4 to be in the side-open state, and the pressure valve V5 to be in the closed state according to the heating valve parameters; at this time, the lithium bromide solution in the generator absorbs the heat from the condensation section of the heat pipe, and water vapor... The solution is generated from the solution, but because the pressure valve V5 is closed, it cannot pass through the pressure valve V5 and enter the condenser. The concentrated lithium bromide solution at the bottom of the generator no longer enters the absorber, but is pumped back into the spray pipe at the top of the generator after passing through the second three-way valve V4 to continue spraying inside the generator. The coil heat exchanger located at the bottom of the generator is the component that outputs heat to the outside. Hot water enters the tube from the outside and absorbs the heat of the lithium bromide solution outside the tube. After being heated, it flows out of the generator, thereby realizing the heating function. At this time, other components of the refrigeration unit and the cooling tower are no longer working.

[0088] In one embodiment, the preset load condition includes the dry-type transformer being in a low-load state; the temperature regulation parameters include valve parameters, a second refrigeration parameter, and a pressure regulation parameter; the valve parameters include a second refrigeration valve parameter; and the temperature regulation loop includes a second cooling regulation loop. The parameter generation unit is further configured to generate the valve parameters, the second refrigeration parameter, and the pressure regulation parameter when the dry-type transformer is in a low-load state. The temperature control unit is further configured to control the operating state of the valve switch according to the second refrigeration valve parameter and the pressure regulation parameter, so as to establish a second cooling regulation loop among the generator, the condenser, the evaporator, the absorber, and the pressure pump. The temperature control unit is further configured to control the second cooling regulation loop to cool the temperature-to-be-regulated area according to the second refrigeration parameter.

[0089] Optionally, the valve parameters include second refrigeration parameters; the temperature control unit includes: a second cooling control subunit, used to control the shut-off valve to be in a closed state according to the second refrigeration valve parameters; the second cooling control subunit is also used to control the pressure pump to perform pressure regulation processing according to the pressure regulation parameters when the pressure value inside the generator meets the preset pressure regulation conditions, so as to regulate the pressure value inside the generator; the second cooling control subunit is also used to, when the regulated pressure value inside the generator meets the preset refrigeration pressure, the three-way valve is in a straight-through state and the pressure valve is in an open state under the pressure inside the generator, so as to construct the second cooling regulation loop between the generator, the condenser, the evaporator, the absorber, and the pressure pump.

[0090] For details, please refer to [link / reference]. Figure 2 When the dry-type transformer is operating at a low load and the ambient temperature of the buildings surrounding the dry-type transformer is higher than the preset ambient temperature, the scenario in which the second cooling regulation circuit is controlled according to the second refrigeration parameters to cool down the area to be adjusted can be that the second cooling control subunit controls the first shut-off valve V1 and the second shut-off valve V2 to be in a closed state, and the first three-way valve V3, the second three-way valve V4, the pressure valve V5, and the solution circulation pump to be in an automatic control state according to the second refrigeration valve parameters. At this time, when the steam pressure of the generator is lower than the design value, the pressure valve V5 automatically closes, the first three-way valve V3 and the second three-way valve V4 automatically switch to side-flow mode, the solution circulation pump turns on, and the generator is in heat absorption and heating mode, that is, the lithium bromide solution in the generator is continuously circulated and heated, and the temperature gradually increases, and the steam pressure also continuously rises; when the steam pressure of the generator is higher than the design value, the pressure valve V5 automatically opens, the first three-way valve V3 and the second three-way valve V4 automatically switch to straight-flow mode, and the solution circulation pump turns off; at this time, the lithium bromide absorption chiller is in normal cooling mode, and other components of the lithium bromide absorption chiller and the cooling tower also work normally.

[0091] It should be noted that when the dry-type transformer is operating at a low load and the ambient temperature of the buildings surrounding the dry-type transformer is higher than the preset ambient temperature, the lithium bromide absorption chiller is performing refrigeration. That is, when the lithium bromide absorption chiller is in a low-load refrigeration mode, the lithium bromide absorption chiller is actually in an intermittent working state and is not suitable for directly supplying cooling to the surrounding buildings, but it can store cold water for the air conditioning chilled water tank.

[0092] This application also provides a temperature control method applied to an air temperature regulation system, see reference. Figure 5 This is a flowchart illustrating a temperature control method in one embodiment.

[0093] Step 502: Obtain the operating load information of the dry-type transformer.

[0094] Step 504: Control the heating and cooling module to convert the obtained heat according to the workload information so as to operate in the target mode. The target mode includes one of the normal load mode and the abnormal load mode.

[0095] The air temperature control system includes a heating / cooling module and a waste heat extraction module. One end of the waste heat extraction module is in contact with the heat source of the dry-type transformer, and the other end is located within the heating / cooling module. The waste heat extraction module is used to extract heat from the dry-type transformer and release the heat into the heating / cooling module. For details on the air temperature control system, please refer to the relevant documentation. Figure 1 as well as Figure 1 The relevant descriptions in the corresponding embodiments will not be repeated here.

[0096] In this embodiment, each step is performed at Figure 1 In the corresponding embodiment, the control module 160 is described in detail. Figure 1 as well as Figure 1 The relevant descriptions in the corresponding embodiments will not be repeated here.

[0097] The temperature control method provided in this embodiment obtains the working load information of the dry-type transformer; controls the heating and cooling module to convert the obtained heat according to the working load information to operate in a target mode, which includes one of a normal load mode and an abnormal load mode; realizes the recovery and utilization of waste heat of the dry-type transformer, and can select different heating or cooling processes according to different working loads of the dry-type transformer, thereby improving the waste heat recovery efficiency of the dry-type transformer.

[0098] See Figure 6 This is a flowchart illustrating the temperature control method in another embodiment.

[0099] In this embodiment, as Figure 6 As shown, the temperature control method includes steps 602 to 604.

[0100] Step 602: Collect ambient temperature information of the area to be adjusted.

[0101] Step 604: Control the heating and cooling module to perform temperature regulation in the target mode according to the workload information and the ambient temperature information.

[0102] In this embodiment, each step is performed at Figure 3In the corresponding embodiment, the temperature acquisition module 380 and the control module 360 ​​are described in detail. Figure 3 as well as Figure 3 The relevant descriptions in the corresponding embodiments will not be repeated here.

[0103] The temperature control method provided in this embodiment collects the ambient temperature information of the area to be adjusted; controls the heating and cooling modules to perform temperature adjustment processing in the target mode according to the workload information and the ambient temperature information; realizes the recovery and utilization of waste heat of dry-type transformers, and can select different working heating or cooling processes according to different workloads of dry-type transformers, thereby improving the waste heat recovery efficiency of dry-type transformers.

[0104] It should be understood that, although Figures 5 to 6 The steps in the flowchart are shown sequentially as indicated by the arrows, but these steps are not necessarily executed in the order indicated by the arrows. Unless otherwise specified in this document, there is no strict order in which these steps are executed; they can be performed in other orders. Figures 5 to 6 At least some of the steps may include multiple sub-steps or multiple stages. These sub-steps or stages are not necessarily executed at the same time, but may be executed at different times. The execution order of these sub-steps or stages is not necessarily sequential, but may be executed in turn or alternately with other steps or at least a portion of the sub-steps or stages of other steps. It should be noted that the different embodiments described above can be combined with each other.

[0105] The division of the various modules in the above temperature control device is only for illustrative purposes. In other embodiments, the temperature control device can be divided into different modules as needed to complete all or part of the functions of the above temperature control device.

[0106] Specific limitations regarding the temperature control method can be found in the limitations of the temperature control device described above, and will not be repeated here. Each module in the aforementioned temperature control device can be implemented entirely or partially through software, hardware, or a combination thereof. These modules can be embedded in hardware or independent of the processor in the computer device, or stored in software in the memory of the computer device, so that the processor can call and execute the operations corresponding to each module.

[0107] This application also provides a computer device, including a memory and a processor. The memory stores a computer program, and when the computer program is executed by the processor, the processor performs the steps of the method as described in the above embodiments.

[0108] This application also provides a computer-readable storage medium. One or more non-volatile computer-readable storage media containing computer-executable instructions, which, when executed by one or more processors, cause the processors to perform the steps of the method as described in the above embodiments.

[0109] The temperature control device, method, computer equipment, and readable storage medium provided in the above embodiments enable the recovery and utilization of waste heat from dry-type transformers. Furthermore, different heating or cooling processes can be selected according to different operating loads of the dry-type transformers, thereby improving the waste heat recovery efficiency of dry-type transformers. This has significant economic value and practical application value.

[0110] Any references to memory, storage, databases, or other media used in this application may include non-volatile and / or volatile memory. Non-volatile memory may include read-only memory (ROM), programmable ROM (PROM), electrically programmable ROM (EPROM), electrically erasable programmable ROM (EEPROM), or flash memory. Volatile memory may include random access memory (RAM), which is used as external cache memory. By way of illustration and not limitation, RAM is available in a variety of forms, such as static RAM (SRAM), dynamic RAM (DRAM), synchronous DRAM (SDRAM), dual data rate SDRAM (DDR SDRAM), enhanced SDRAM (ESDRAM), synchronous link DRAM (SLDRAM), RAMbus direct RAM (RDRAM), direct memory bus dynamic RAM (DRDRAM), and RAMbus dynamic RAM (RDRAM).

[0111] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0112] The embodiments described above are merely illustrative of several implementations of the present invention, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the invention patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and these all fall within the protection scope of the present invention. Therefore, the protection scope of this invention patent should be determined by the appended claims.

Claims

1. A temperature control device, applied to an air temperature regulation system, characterized in that, include: Heating and cooling modules; The waste heat extraction module has one end in contact with the heat source of the dry-type transformer and the other end in the heating and cooling module. The waste heat extraction module is used to obtain the heat from the dry-type transformer and release the heat into the heating and cooling module. The control module is connected to the heating and cooling module and the waste heat extraction module respectively. It is used to obtain the working load information of the dry-type transformer and control the heating and cooling module to convert the obtained heat according to the working load information so that it can work in a target mode. The target mode includes one of normal load mode and abnormal load mode. A temperature acquisition module, connected to the control module, is used to acquire ambient temperature information of the area where the temperature is to be adjusted; The control module is also used to control the heating and cooling module to perform temperature regulation processing in the target mode according to the workload information and the ambient temperature information; The control module includes: The parameter generation unit is used to generate temperature adjustment parameters based on the ambient temperature information of the area to be adjusted when the workload information meets the preset load conditions. A temperature control unit, connected to the parameter generation unit, is used to control the heating and cooling module to perform temperature adjustment processing on the area to be adjusted in the target mode according to the temperature adjustment parameters, so that the ambient temperature of the area to be adjusted meets the preset ambient temperature. The temperature control device further includes: Coil heat exchanger; The heating and cooling module includes a generator, a condenser, an evaporator, an absorber, a heat exchanger, and a pressure pump. A first shut-off valve and a second shut-off valve are respectively installed at both ends of the coil heat exchanger. The generator, condenser, evaporator, and absorber are connected sequentially by pipes. The bottom of the absorber is connected to the generator via a pipe passing through the heat exchanger. The pressure pump is installed on the pipe between the bottom of the heat exchanger and the generator. A first three-way valve and a second three-way valve are respectively installed at both ends of the pressure pump. A pressure valve is installed in the channel between the generator and the condenser. The preset load conditions include the dry-type transformer being in a low-load state, and the temperature regulation parameters include the second refrigeration valve parameters, the second refrigeration parameters, and the pressure regulation parameters; The parameter generation unit is also used to generate the second refrigeration valve parameters, the second refrigeration parameters, and the pressure regulating parameters when the dry-type transformer is in a low-load state. The temperature control unit is also used to control the working state of each valve according to the second refrigeration valve parameters and the pressure regulating parameters, so as to establish a second cooling regulation loop among the generator, the condenser, the evaporator, the absorber, and the pressure pump; The temperature control unit is also used to control the second cooling regulation circuit to cool the area to be adjusted according to the second cooling parameter. The temperature control unit includes: The second cooling control subunit is used to control the first shut-off valve and the second shut-off valve to be in a closed state according to the parameters of the second refrigeration valve. The second cooling control subunit is also used to control the pressure pump to perform pressure regulation processing according to the pressure regulation parameters when the pressure value inside the generator meets the preset pressure regulation conditions, so as to regulate the pressure value inside the generator. The second cooling control subunit is also used to, when the pressure value inside the generator after adjustment meets the preset refrigeration pressure, to have the first three-way valve and the second three-way valve in a straight-through state and the pressure valve in an open state under the pressure inside the generator, so as to establish the second cooling regulation loop between the generator, the condenser, the evaporator, the absorber and the pressure pump.

2. The temperature control device according to claim 1, characterized in that, The preset load conditions include the dry-type transformer being under rated load, the temperature regulation parameters include first valve parameters, first cooling parameters, and heating parameters, and the control module includes a parameter generation unit and a temperature control unit. The parameter generation unit is also used to generate the first valve parameter, the first refrigeration parameter, and the heating parameter when the dry-type transformer is under rated load. The temperature control unit is also used to control the operating state of each valve according to the first valve parameters, so as to establish a temperature regulation loop among the generator, the condenser, the evaporator and the absorber; the temperature regulation loop includes a heating regulation loop and a first cooling regulation loop; The temperature control unit is further configured to control the first cooling regulation circuit to cool the area to be adjusted according to the first cooling parameters; or The temperature control unit is also used to control the temperature adjustment circuit to heat the area to be adjusted according to the heating parameters.

3. The temperature control device according to claim 2, characterized in that, The first valve parameters include the parameters of the first refrigeration valve; the temperature control unit includes: The first cooling control subunit is used to control the first shut-off valve and the second shut-off valve to be in a closed state, the first three-way valve and the second three-way valve to be in a straight-through state, and the pressure valve to be in an open state according to the parameters of the first refrigeration valve, so as to construct the first cooling regulation loop among the generator, the condenser, the evaporator and the absorber.

4. The temperature control device according to claim 2, characterized in that, The first valve parameters include heating valve parameters; the temperature control unit further includes: The temperature control subunit is used to control the first shut-off valve and the second shut-off valve to be in the open state, the first three-way valve and the second three-way valve to be in the side-open state, and the pressure valve to be in the closed state according to the heating valve parameters, so as to construct the temperature regulation loop between the generator, the condenser, the evaporator and the absorber.

5. The temperature control device according to claim 1, characterized in that, The heating and cooling module includes a heat pipe, which is connected to the internal winding of the dry-type transformer by a potting method.

6. A temperature control method, employing the temperature control device as described in any one of claims 1-5, wherein the temperature control device is applied to an air temperature regulation system, characterized in that, The temperature control device includes a heating and cooling module and a waste heat extraction module. One end of the waste heat extraction module is in contact with the heat source of the dry-type transformer, and the other end of the waste heat extraction module is located in the heating and cooling module. The waste heat extraction module is used to obtain the heat of the dry-type transformer and release the heat into the heating and cooling module. The temperature control method includes: The working load information of the dry-type transformer is obtained, and the heating and cooling module is controlled to convert the obtained heat according to the working load information to operate in a target mode, which includes one of a normal load mode and an abnormal load mode.

7. A computer device, characterized in that, It includes a memory and a processor, wherein the memory stores a computer program, and when the computer program is executed by the processor, the processor performs the temperature control method as described in claim 6.

8. A computer-readable storage medium having a computer program stored thereon, characterized in that, When the computer program is executed by the processor, it implements the temperature control method as described in claim 6.

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