Integrated control system and method for combined power generation and heating using geothermal energy

Abstract

The present invention belongs to the technical field of comprehensive utilization of geothermal energy, and specifically discloses a combined control system and method for power generation and heating using geothermal energy. Based on the detection result of the second temperature sensor and the change in the difference between the required temperature of the user end and the first temperature sensor, the control device controls the flow-dividing cylinder and the solenoid valve respectively to achieve geothermal secondary power generation or geothermal heating. The present invention also provides a system including devices such as a separator, a steam turbine, and a flow-dividing device connected to a geothermal well. The present invention obtains a control signal based on the temperature of the steam output from the output pipeline, the control device receives the control signal and loads a control mechanism, the judgment module judges the control instruction corresponding to the control signal within the control mechanism, and the control device sends a control instruction to drive the flow-dividing cylinder to drive the flow-dividing baffle to control the steam flow circuit, and re-uses the exhausted steam below the boiling point of the working medium, improving the utilization efficiency of geothermal energy.

Description

Technical Field

[0001] The present invention belongs to the technical field of comprehensive utilization of geothermal energy, and particularly relates to a comprehensive control system and method for combined power generation and heating using geothermal energy. Background Art

[0002] A large amount of thermal energy is stored below the earth's surface. At present, the technologies of geothermal power generation and geothermal heating are very mature. For geothermal power generation, the working fluid steam generated by heat exchange of steam or hot water generated by geothermal energy drives the steam turbine to rotate and then drives the generator to generate electricity. Common types of geothermal power generation include geothermal steam power generation technology, geothermal water power generation technology, enhanced geothermal system (EGS) power generation technology, and combined cycle geothermal power generation technology. Among them, in EGS power generation, hydraulic fracturing is used to create cracks in the rock and water is injected into the cracks. However, since the heat source is generally located more than 1.5 km below the earth's surface, it is difficult to inject water and there is a phenomenon of water loss. Compared with geothermal steam power generation technology and geothermal water power generation technology, the combined cycle geothermal power generation technology has the advantages of high power generation efficiency, energy conservation, and high economic benefits.

[0003] Existing combined cycle geothermal power generation equipment collects the hot steam (>150 °C) about 1.5 km below the earth's surface to the ground to drive the steam turbine to do work, and then circulates and generates electricity with the medium-temperature steam (100 - 120 °C) discharged from the steam turbine. The exhausted steam discharged after the steam turbine cycle is generally cooled by a cooling tower, resulting in low utilization rate of geothermal energy. Summary of the Invention

[0004] The purpose of the present invention is to overcome the defects existing in the prior art and provide a comprehensive control system and method for combined power generation and heating using geothermal energy.

[0005] In the first aspect of the present invention, a comprehensive control system for combined power generation and heating using geothermal energy is provided, including:

[0006] A user terminal having a plurality of user units;

[0007] A separator connected to the geothermal energy heating system, collecting the high-temperature hot steam provided by the geothermal energy heating system and performing separation and sewage discharge;

[0008] A steam turbine, the input end of the steam turbine is connected to the separator, the high-temperature hot steam collected by the separator drives the rotor of the steam turbine, and the rotor of the steam turbine is connected to a generator to generate electricity;

[0009] An output pipeline connected to the output end of the steam turbine for outputting the steam of the steam turbine;

[0010] A flow splitting device is arranged inside the output pipeline and is hermetically connected to the inner wall of the output pipeline; the flow splitting device has a first output pipe and a second output pipe, the first output pipe is used to connect to a secondary power generation system, and the second output pipe is used to connect to a heating system;

[0011] A control device;

[0012] Obtain a control signal based on the temperature of the steam output from the output pipeline. The control device receives the control signal and loads a control mechanism. Based on the control mechanism, a judgment module judges the control instruction corresponding to the control signal within the control mechanism. The control device sends the control instruction to drive a flow splitting cylinder to drive a flow splitting plate to control the steam flow circuit, and

[0013] Obtain a regulation signal based on the required temperature of the user end. The control device receives the regulation signal and loads a regulation mechanism. Based on the regulation mechanism, the judgment module judges the regulation instruction corresponding to the regulation signal within the regulation mechanism. The control device sends the regulation instruction to drive the opening and closing and the opening degree of a solenoid valve to further adjust the temperature of a constant temperature water tank to meet the requirements of the user end.

[0014] In a further solution, the geothermal energy heating system includes: a geothermal well, and a high-temperature steam in the geothermal well is collected to the separator by using a geothermal steam collection device.

[0015] In a further solution, the secondary power generation system includes a heat exchanger. The input end of the heat exchanger is communicated with the first output pipe, and the output end of the heat exchanger is connected to the input end of a steam turbine;

[0016] There is a heat transfer medium arranged inside the heat exchanger.

[0017] In a further solution, the heating system includes a constant temperature water tank and a softening water tank connected to the constant temperature water tank, and a first solenoid valve is arranged between the constant temperature water tank and the softening water tank;

[0018] There is a third temperature sensor and a second heat exchanger arranged inside the constant temperature water tank;

[0019] The input end of the second heat exchanger is communicated with the second output pipe and serves as a heating component of the constant temperature water tank. A second solenoid valve is arranged between the constant temperature water tank and the second output pipe;

[0020] The constant temperature water tank is communicated with the user end, and a first temperature sensor is arranged between the constant temperature water tank and the user end for detecting the water temperature reaching the user end;

[0021] The softening water tank is further connected to a water softening device, and the water softening device is connected to a tap water inlet pipe;

[0022] The control device obtains a regulation signal based on the required temperature of the user terminal and the temperature of the first temperature sensor, compares the required temperature with the first temperature sensor, and then receives the regulation signal and loads a regulation mechanism. Based on the regulation mechanism, a judgment module judges whether the regulation signal is within a first threshold. If so, the control device sends a regulation instruction to increase the opening degree of the first solenoid valve, and obtains the detection result of the third temperature sensor until the first set value is met; if the regulation signal is within a second threshold, the control device sends a regulation instruction to decrease the opening degree of the first solenoid valve, and obtains the detection result of the third temperature sensor until the second set value is met.

[0023] Furthermore, the softening water tank also replenishes water to the ground source side circulation pipeline through a circulation pump.

[0024] Furthermore, the shunt device includes:

[0025] An acceleration pipe and a shunt pipe, which are connected through a connector;

[0026] A shunt plate is arranged inside the shunt pipe, and the shunt plate divides the shunt pipe into a first output pipe and a second output pipe;

[0027] On one side of the shunt plate, there is a first shunt cylinder, and the output end of the first shunt cylinder is connected with a first shunt baffle. On the other side of the shunt plate, there is a second shunt cylinder, and the output end of the second shunt cylinder is connected with a second shunt baffle;

[0028] A second temperature sensor is arranged inside the connector;

[0029] The control device obtains a control signal based on the steam temperature of the second temperature sensor, receives the control signal and loads a control mechanism. Based on the control mechanism, a judgment module judges whether the control signal is within a third threshold. If so, the control device sends a control instruction to drive the first shunt cylinder to drive the first shunt baffle to move into the connector to block the first output pipe, so that the steam enters the heating system along the second output pipe; if the control signal is within a fourth threshold, the control device sends a control instruction to drive the second shunt cylinder to drive the second shunt baffle to move into the connector to block the second output pipe, so that the steam enters the secondary power generation system along the first output pipe.

[0030] Furthermore, the connector is a hollow hourglass-shaped structure, and one end of the shunt plate extends to the center of the connector, dividing the side of the shunt plate close to the shunt pipe into two upper and lower sealed areas. When the shunt cylinder drives the shunt plate to move, the upper and lower end faces of the first shunt baffle / second shunt baffle and the connector and the shunt plate form a sealing surface.

[0031] In a further solution, a Tesla valve is arranged inside the acceleration tube to accelerate the steam flowing through the acceleration tube.

[0032] In a second aspect of the present invention, a comprehensive control method for combined power generation and heating using geothermal energy is provided. Based on the detection result of the second temperature sensor and the change in the difference between the required temperature of the user side and the first temperature sensor, the control device controls the shunt cylinder and the solenoid valve respectively to achieve secondary geothermal power generation or geothermal heating. The method includes:

[0033] The control device obtains a regulation signal based on the required temperature of the user side and the temperature of the first temperature sensor, compares the required temperature with the first temperature sensor, and after obtaining the regulation signal, the control device receives the regulation signal and loads a regulation mechanism. Based on the regulation mechanism, the judgment module judges whether the regulation signal is within a first threshold. If so, the control device sends a regulation instruction to increase the opening degree of the first solenoid valve and obtains the detection result of the third temperature sensor until the first set value is satisfied; if the regulation signal is within a second threshold, the control device sends a regulation instruction to decrease the opening degree of the first solenoid valve and obtains the detection result of the third temperature sensor until the second set value is satisfied;

[0034] The control device obtains a control signal based on the steam temperature of the second temperature sensor, receives the control signal and loads a control mechanism. Based on the control mechanism, the judgment module judges whether the control signal is within a third threshold. If so, the control device sends a control instruction to drive the first shunt cylinder to drive the first shunt baffle to move into the connector to block the first output pipe, so that the steam enters the heating system along the second output pipe; if the control signal is within a fourth threshold, the control device sends a control instruction to drive the second shunt cylinder to drive the second shunt baffle to move into the connector to block the second output pipe, so that the steam enters the secondary power generation system along the first output pipe.

[0035] In a further solution, the control mechanism controls the start and stop of the shunt motor within at least two control ranges set based on the detection result of the second temperature sensor; the regulation mechanism controls the opening degree of the solenoid valve within at least two control ranges set based on the difference between the required temperature of the user side and the first temperature sensor.

[0036] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0037] The present invention discloses a system for comprehensive control of combined power generation and heating using geothermal energy. The control device determines the control signal based on the required temperature of the user terminal and the temperature detected by the first temperature sensor. After comparing the required temperature with the detection result of the first temperature sensor, a regulation signal is obtained. The control device receives the regulation signal and loads a regulation mechanism. Based on the regulation mechanism, the judgment module determines whether the regulation signal is within the first threshold. If so, the control device sends a regulation instruction to increase the opening degree of the first solenoid valve and obtains the detection result of the third temperature sensor until the first set value is satisfied. If the regulation signal is within the second threshold, the control device sends a regulation instruction to decrease the opening degree of the first solenoid valve and obtains the detection result of the third temperature sensor until the second set value is satisfied.

[0038] The control device determines the control signal based on the steam temperature detected by the second temperature sensor. The control device receives the control signal and loads a control mechanism. Based on the control mechanism, the judgment module determines whether the control signal is within the third threshold. If so, the control device sends a control instruction to drive the first diverter cylinder to drive the first diverter baffle to move into the connector, blocking the first output pipe, so that the steam enters the heating system along the second output pipe, and the waste steam below the boiling point of the working medium is reused, improving the utilization efficiency of geothermal energy. If the control signal is within the fourth threshold, the control device sends a control instruction to drive the second diverter cylinder to drive the second diverter baffle to move into the connector, blocking the second output pipe, so that the steam enters the secondary power generation system along the first output pipe. BRIEF DESCRIPTION OF THE DRAWINGS

[0039] The following drawings are only for illustrative explanation of the present invention and are not used to limit the scope of the present invention, where:

[0040] Figure 1 : Schematic diagram of the framework principle of the system in the present invention;

[0041] Figure 2 : Schematic diagram of the structure of the diverter device of the present invention;

[0042] Figure 3 : Cross-sectional view of the diverter device (the second output pipe is blocked);

[0043] Figure 4 : Cross-sectional view of the diverter device (the first output pipe is blocked);

[0044] In the figure: 100, control device; 1, geothermal well; 2, separator; 3, output pipeline; 3.1, acceleration pipe; 3.2, connector; 3.3, second temperature sensor; 3.4, shunt pipe; 3.5, shunt plate; 3.6, first shunt cylinder; 3.7, first shunt baffle; 3.8, second shunt cylinder; 3.9, second shunt baffle; 4, steam turbine; 5, generator; 6, heat exchanger; 7, softened water equipment; 8, softened water tank; 9, constant temperature water tank; 10, circulation pump; 11, third temperature sensor; 12, first temperature sensor; 13, first solenoid valve; 14, second solenoid valve. Detailed implementation mode

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

[0046] As Figures 1-4 shown, the present invention provides a comprehensive control method for combined power generation and heating using geothermal energy. Based on the detection result of the second temperature sensor 3.3 and the difference change between the required temperature of the user end and the first temperature sensor 12, the control device 100 controls the shunt cylinder and the solenoid valve respectively to achieve geothermal secondary power generation or geothermal heating. The method includes:

[0047] The control device 100 obtains a regulation signal based on the required temperature of the user end and the temperature of the first temperature sensor 12, and after comparing the required temperature with the first temperature sensor 12, the control device 100 receives the regulation signal and loads a regulation mechanism. Based on the regulation mechanism, the judgment module judges whether the regulation signal is within the first threshold. If so, the control device 100 sends a regulation instruction to increase the opening degree of the first solenoid valve 13, and obtains the detection result of the third temperature sensor 11 until the first set value is satisfied; if the regulation signal is within the second threshold, the control device 100 sends a regulation instruction to decrease the opening degree of the first solenoid valve 13, and obtains the detection result of the third temperature sensor 11 until the second set value is satisfied;

[0048] The control device 100 obtains a control signal based on the steam temperature of the second temperature sensor 3.3. The control device 100 receives the control signal and loads the control mechanism. Based on the control mechanism, the judgment module judges whether the control signal is within the third threshold. If so, the control device 100 sends a control instruction to drive the first shunt cylinder 3.6 to drive the first shunt baffle 3.7 to move into the connector 3.2 to block the first output pipe, so that the steam enters the heating system along the second output pipe; if the control signal is within the fourth threshold, the control device 100 sends a control instruction to drive the second shunt cylinder 3.8 to drive the second shunt baffle 3.9 to move into the connector 3.2 to block the second output pipe, so that the steam enters the secondary power generation system along the first output pipe.

[0049] In the above, the control mechanism is for starting and stopping control of the shunt motor within at least two control ranges set based on the detection result of the second temperature sensor 3.3; the regulation mechanism is for controlling the opening degree of the solenoid valve within at least two control ranges set based on the difference between the required temperature of the user terminal and the first temperature sensor 12.

[0050] In the above, after the geothermal steam collection device collects geothermal energy to the ground, it first passes through a separator for separation and sewage discharge, and then uses high-temperature steam (150 °C) to drive the steam turbine 4, and then drives the generator 5 to generate electricity. The medium-temperature steam (100 - 120 °C) or low-temperature exhaust steam (60 - 80 °C) output from the output pipe 3 of the steam turbine 4 is distributed. Specifically, the control device 100 obtains the steam temperature passing through the output pipe in real time, sets a third threshold and a fourth threshold in the control device 100, judges the steam temperature in each interval through the judgment module, and then the control device 100 controls the shunt cylinder to act to realize the opening and closing of the shunt channel. The ranges of the third threshold and the fourth threshold can be set according to the actual situation. Taking the opening of the second output pipe and the closing of the first output pipe as an example for illustration:

[0051] In this state, the control device 100 sends a control instruction to drive the first diverter cylinder (3.6) to drive the first diverter baffle 3.7 into the connector 3.2 to block the first output pipe, so that steam enters the heating system along the second output pipe. Since the second output pipe is connected to the second heat exchanger, after the low-temperature exhaust steam is exchanged heat through the second heat exchanger, the second heat exchanger is equivalent to a heater to heat the softened water in the constant temperature water tank 9. To improve the heating efficiency, the second heat exchanger can be set as a tubular heat exchanger and spirally arranged inside the constant temperature water tank 9. After the control device 100 obtains the required temperature set by the user terminal, it will monitor the water temperature before entering the user terminal in real time. If the water temperature is lower than the required temperature, the control device 100 sends an instruction to reduce the opening of the first solenoid valve 13 and obtains the water temperature in the constant temperature water tank 9 in real time until the second set value is satisfied. Similarly, if the water temperature is lower than the required temperature, the control device 100 sends an instruction to increase the opening of the first solenoid valve 13 and obtains the water temperature in the constant temperature water tank 9 in real time until the first set value is satisfied. The first set value and the second set value here can be empirical values or temperature values determined according to machine learning, that is, the part where the temperature of the second set value is higher than the required temperature can just offset the heat loss during the hot water transportation process.

[0052] To facilitate the implementation of the above control method, the present invention also provides a combined geothermal power generation and heating comprehensive control system, as Figure 1 shown, including:

[0053] A user terminal with multiple user units;

[0054] A separator 2, connected to the geothermal energy heating system, collecting the high-temperature hot steam provided by the geothermal energy heating system and separating and discharging sewage;

[0055] A steam turbine 4, the input end of the steam turbine 4 is connected to the separator 2, the high-temperature hot steam collected by the separator 2 drives the rotor of the steam turbine 4, and the rotor of the steam turbine 4 is connected to a generator 5 for power generation;

[0056] An output pipeline 3, connected to the output end of the steam turbine 4, for outputting the steam of the steam turbine 4;

[0057] A diverter device, arranged inside the output pipeline 3 and hermetically connected to the inner wall of the output pipeline 3; the diverter device has a first output pipe and a second output pipe, the first output pipe is used to connect to a secondary power generation system, and the second output pipe is used to connect to a heating system;

[0058] A control device 100;

[0059] Obtain a control signal based on the temperature of the steam output by the output pipeline 3. The control device 100 receives the control signal and loads the control mechanism. Based on the control mechanism, the judgment module judges the control instruction corresponding to the control signal within the control mechanism. The control device 100 sends the control instruction to drive the shunt cylinder to drive the shunt plate to control the steam flow circuit, and

[0060] Obtain a regulation signal based on the required temperature of the user terminal. The control device 100 receives the regulation signal and loads the regulation mechanism. Based on the regulation mechanism, the judgment module judges the regulation instruction corresponding to the regulation signal within the regulation mechanism. The control device 100 sends the regulation instruction to drive the opening and closing and the opening degree of the solenoid valve, and then adjusts the temperature of the constant temperature water tank 9 to meet the requirements of the user terminal.

[0061] In the above, the geothermal energy heating system includes: a geothermal well 1, and a high-temperature steam in the geothermal well 1 is collected to the separator 2 by using a geothermal steam collection device.

[0062] In the above, the secondary power generation system includes a heat exchanger 6. The input end of the heat exchanger 6 is connected to the first output pipe, and the output end of the heat exchanger 6 is connected to the input end of the steam turbine 4;

[0063] The heat exchanger 6 is internally provided with a heat exchange working medium.

[0064] In the above, the heating system includes a constant temperature water tank 9 and a softening water tank 8 connected to the constant temperature water tank 9, and a first solenoid valve 13 is arranged between the constant temperature water tank 9 and the softening water tank 8;

[0065] The interior of the constant temperature water tank 9 is provided with a third temperature sensor 11 and a second heat exchanger;

[0066] The input end of the second heat exchanger is connected to the second output pipe and serves as a heating component of the constant temperature water tank 9. A second solenoid valve 14 is arranged between the constant temperature water tank 9 and the second output pipe;

[0067] The constant temperature water tank 9 is connected to the user terminal, and a first temperature sensor 12 is arranged between the constant temperature water tank 9 and the user terminal for detecting the water temperature reaching the user terminal;

[0068] The softening water tank 8 is further connected to a water softening device, and the water softening device is connected to a tap water inlet pipe;

[0069] The control device 100 obtains a regulation signal based on the required temperature of the user terminal and the temperature of the first temperature sensor 12, compares the required temperature with the temperature of the first temperature sensor 12, receives the regulation signal and loads a regulation mechanism. Based on the regulation mechanism, a judgment module judges whether the regulation signal is within a first threshold. If so, the control device 100 sends a regulation instruction to increase the opening degree of the first solenoid valve 13 and obtains the detection result of the third temperature sensor 11 until a first set value is satisfied; if the regulation signal is within a second threshold, the control device 100 sends a regulation instruction to decrease the opening degree of the first solenoid valve 13 and obtains the detection result of the third temperature sensor 11 until a second set value is satisfied.

[0070] In the above, the softening water tank 8 also replenishes water to the ground source side circulation pipeline through the circulation pump 10.

[0071] In the above, as Figures 2-4 shown, the shunt device includes:

[0072] An acceleration tube 3.1 and a shunt tube 3.4, and the acceleration tube 3.1 and the shunt tube 3.4 are communicated through a connector 3.2;

[0073] A shunt plate 3.5 is arranged inside the shunt tube 3.4, and the shunt plate 3.5 divides the shunt tube 3.4 into a first output tube and a second output tube;

[0074] A first shunt cylinder 3.6 is arranged on one side of the shunt plate 3.5, the output end of the first shunt cylinder 3.6 is connected with a first shunt baffle 3.7, a second shunt cylinder 3.8 is arranged on the other side of the shunt plate 3.5, and the output end of the second shunt cylinder 3.8 is connected with a second shunt baffle 3.9;

[0075] A second temperature sensor 3.3 is arranged inside the connector 3.2;

[0076] The control device 100 obtains a control signal based on the steam temperature of the second temperature sensor 3.3, receives the control signal and loads a control mechanism. Based on the control mechanism, a judgment module judges whether the control signal is within a third threshold. If so, the control device 100 sends a control instruction to drive the first shunt cylinder 3.6 to drive the first shunt baffle 3.7 to move into the connector 3.2 to block the first output tube, so that the steam enters the heating system along the second output tube; if the control signal is within a fourth threshold, the control device 100 sends a control instruction to drive the second shunt cylinder 3.8 to drive the second shunt baffle 3.9 to move into the connector 3.2 to block the second output tube, so that the steam enters the secondary power generation system along the first output tube.

[0077] In the above, the connector 3.2 is a hollow hourglass-shaped structure. One end of the flow dividing plate 3.5 extends to the center of the connector 3.2, dividing the side of the flow dividing plate 3.5 close to the flow dividing pipe 3.2 into upper and lower two sealed areas. When the flow dividing cylinder drives the flow dividing plate 3.5 to move, the upper and lower end faces of the first flow dividing baffle 3.7 / the second flow dividing baffle 3.9 and the connector 3.2 and the flow dividing plate 3.5 form a sealing surface. When one of the flow dividing cylinders retracts, since the size of the baffle just blocks the middle part of the hourglass structure, therefore, it will not block the end part of the hourglass structure naturally, and the steam can pass through smoothly.

[0078] Optionally, a Tesla valve is arranged inside the acceleration pipe 3.1 to accelerate the steam flowing through the acceleration pipe 3.1.

[0079] The embodiments of the present invention have been described above. The above description is exemplary and not exhaustive, and is not limited to the disclosed embodiments. Many modifications and variations are obvious to those of ordinary skill in the art in the technical field without departing from the scope and spirit of the described embodiments. The choice of terms used herein is intended to best explain the principles of the embodiments, practical applications or improvements to the technology in the market, or to enable other ordinary skill in the art in the technical field to understand the embodiments disclosed herein.

Claims

1. An integrated control system for combined power generation and heating using geothermal energy, characterized in that, Comprising: A client terminal having a plurality of user units; A separator (2) connected to a geothermal heating system, collecting high-temperature thermal steam provided by the geothermal heating system and performing separation and sewage discharge; A steam turbine (4), the input end of the steam turbine (4) being connected to the separator (2), driving the rotor of the steam turbine (4) by the high-temperature thermal steam collected by the separator (2), and the rotor of the steam turbine (4) being connected to a generator (5) for power generation; An output pipeline (3) connected to the output end of the steam turbine (4) for outputting the steam of the steam turbine (4); A flow splitting device provided inside the output pipeline (3) and hermetically connected to the inner wall of the output pipeline (3); the flow splitting device has a first output pipe and a second output pipe, the first output pipe being used to connect to a secondary power generation system, and the second output pipe being used to connect to a heating system; The heating system includes a constant temperature water tank (9) and a softening water tank (8) connected to the constant temperature water tank (9), and a first solenoid valve (13) is provided between the constant temperature water tank (9) and the softening water tank (8); A third temperature sensor (11) and a second heat exchanger are provided inside the constant temperature water tank (9); The input end of the second heat exchanger is communicated with the second output pipe and serves as a heating component of the constant temperature water tank (9), and a second solenoid valve (14) is provided between the constant temperature water tank (9) and the second output pipe; The constant temperature water tank (9) is communicated with the client terminal, and a first temperature sensor (12) is provided between the constant temperature water tank (9) and the client terminal for detecting the water temperature reaching the client terminal; The softening water tank (8) is further connected to a water softening device, and the water softening device is connected to a tap water inlet pipe; The flow splitting device includes: An acceleration pipe (3.1) and a flow splitting pipe (3.4), the acceleration pipe (3.1) and the flow splitting pipe (3.4) being communicated through a connector (3.2); A flow splitting plate (3.5) is provided inside the flow splitting pipe (3.4), and the flow splitting plate (3.5) divides the flow splitting pipe (3.4) into the first output pipe and the second output pipe; A first flow splitting cylinder (3.6) is provided on one side of the flow splitting plate (3.5), the output end of the first flow splitting cylinder (3.6) is connected to a first flow splitting baffle (3.7), a second flow splitting cylinder (3.8) is provided on the other side of the flow splitting plate (3.5), and the output end of the second flow splitting cylinder (3.8) is connected to a second flow splitting baffle (3.9); A second temperature sensor (3.3) is provided inside the connector (3.2); A control device (100); Obtaining a control signal based on the temperature of the steam output from the output pipeline (3), the control device (100) receiving the control signal and loading a control mechanism, based on the control mechanism, a judgment module judges the control instruction corresponding to the control signal in the control mechanism, and the control device (100) sends a control instruction to drive the flow splitting cylinder to drive the flow splitting plate (3.5) to control the steam flow circuit, and Obtain a regulation signal according to the required temperature of the user terminal. The control device (100) receives the regulation signal and loads a regulation mechanism. Based on the regulation mechanism, the judgment module judges the regulation instruction corresponding to the regulation signal in the regulation mechanism. The control device (100) sends a regulation instruction to drive the opening and closing and the opening degree of the solenoid valve, thereby adjusting the temperature of the constant temperature water tank (9) to meet the requirements of the user terminal.

2. The integrated control system for combined power generation and heating using geothermal energy according to claim 1, characterized in that, The geothermal energy heating system includes: a geothermal well (1), and a high-temperature steam in the geothermal well (1) is collected into the separator (2) by using a geothermal steam collection device.

3. The combined integrated control system for power generation and heating using geothermal energy according to claim 1, characterized in that, The secondary power generation system includes a heat exchanger (6). The input end of the heat exchanger (6) is connected to the first output pipe, and the output end of the heat exchanger (6) is connected to the input end of the steam turbine (4); There is a heat transfer working medium inside the heat exchanger (6).

4. The integrated control system for combined power generation and heating using geothermal energy according to claim 3, characterized in that, The control device (100) obtains a regulation signal according to the required temperature of the user terminal and the temperature of the first temperature sensor (12). After comparing the required temperature and the first temperature sensor (12), the control device (100) receives the regulation signal and loads a regulation mechanism. Based on the regulation mechanism, the judgment module judges whether the regulation signal is within a first threshold. If so, the control device (100) sends a regulation instruction to increase the opening degree of the first solenoid valve (13), and obtains the detection result of the third temperature sensor (11) until the first set value is satisfied; if the regulation signal is within a second threshold, the control device (100) sends a regulation instruction to decrease the opening degree of the first solenoid valve (13), and obtains the detection result of the third temperature sensor (11) until the second set value is satisfied.

5. The combined comprehensive control system for power generation and heating using geothermal energy according to claim 4, characterized in that, The softening water tank (8) also replenishes water to the ground source side circulation pipeline through a circulation pump (10).

6. The integrated control system for combined power generation and heating using geothermal energy according to claim 1, characterized in that, The control device (100) obtains a control signal according to the steam temperature of the second temperature sensor (3.3). The control device (100) receives the control signal and loads a control mechanism. Based on the control mechanism, the judgment module judges whether the control signal is within a third threshold. If so, the control device (100) sends a control instruction to drive the first diverter cylinder (3.6) to drive the first diverter baffle (3.7) to move into the connector (3.2) to block the first output pipe, so that the steam enters the heating system along the second output pipe; if the control signal is within a fourth threshold, the control device (100) sends a control instruction to drive the second diverter cylinder (3.8) to drive the second diverter baffle (3.9) to move into the connector (3.2) to block the second output pipe, so that the steam enters the secondary power generation system along the first output pipe.

7. The integrated control system for combined power generation and heating using geothermal energy according to claim 6, characterized in that, The connector (3.2) is a hollow hourglass-shaped structure. One end of the flow dividing plate (3.5) extends to the center of the connector (3.2), dividing the side of the flow dividing plate (3.5) close to the flow dividing pipe (3.4) into upper and lower sealed areas. When the flow dividing cylinder drives the movement of the flow dividing plate (3.5), the upper and lower end faces of the first flow dividing baffle (3.7) / the second flow dividing baffle (3.9) and the connector (3.2) and the flow dividing plate (3.5) form sealing surfaces.

8. The integrated control system for combined power generation and heating using geothermal energy according to claim 7, characterized in that, A Tesla valve is arranged inside the acceleration pipe (3.1) to accelerate the steam flowing through the acceleration pipe (3.1).

9. An integrated control method for combined power generation and heating using geothermal energy, characterized in that, Based on the detection result of the second temperature sensor (3.3) and the change in the difference between the required temperature of the user end and the temperature of the first temperature sensor (12), the control device (100) controls the flow dividing cylinder and the solenoid valve respectively to achieve geothermal secondary power generation or geothermal heating. The method includes: The control device (100) is based on the required temperature of the user end and the temperature of the first temperature sensor (12), and after comparing the required temperature and the first temperature sensor (12), obtains a regulation signal. The control device (100) receives the regulation signal and loads a regulation mechanism. Based on the regulation mechanism, the judgment module judges whether the regulation signal is within the first threshold. If so, the control device (100) sends a regulation instruction to increase the opening degree of the first solenoid valve (13), and obtains the detection result of the third temperature sensor (11) until the first set value is satisfied; if the regulation signal is within the second threshold, the control device (100) sends a regulation instruction to decrease the opening degree of the first solenoid valve (13), and obtains the detection result of the third temperature sensor (11) until the second set value is satisfied; The control device (100) obtains a control signal based on the steam temperature of the second temperature sensor (3.3). The control device (100) receives the control signal and loads a control mechanism. Based on the control mechanism, the judgment module judges whether the control signal is within the third threshold. If so, the control device (100) sends a control instruction to drive the first flow dividing cylinder (3.6) to drive the first flow dividing baffle (3.7) to move into the connector (3.2) to block the first output pipe, so that the steam enters the heating system along the second output pipe; if the control signal is within the fourth threshold, the control device (100) sends a control instruction to drive the second flow dividing cylinder (3.8) to drive the second flow dividing baffle (3.9) to move into the connector (3.2) to block the second output pipe, so that the steam enters the secondary power generation system along the first output pipe.

10. The integrated control method for combined power generation and heating using geothermal energy according to claim 9, characterized in that, The control mechanism controls the start and stop of the flow dividing motor within at least two control ranges set based on the detection result of the second temperature sensor (3.3); the regulation mechanism controls the opening degree of the solenoid valve within at least two control ranges set based on the difference between the required temperature of the user end and the first temperature sensor (12).

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