A pipeline pressure difference power generation and energy storage device and its control system

Abstract

The present invention discloses a pipeline pressure difference power generation and energy storage device and its control system, including a valve, a branch pipeline, a generator, an energy storage battery and an isolation valve. The left and right sides of the valve are provided with pipeline connection ports, and the two ends of the branch pipeline are respectively connected to the two pipeline connection ports. The isolation valve and the generator are provided on the branch pipeline. The energy storage battery is electrically connected to the generator. The electric energy generated by the generator is stored in the energy storage battery. The energy storage battery is used to supply power to electrical appliances at the pipeline valve. For electrical appliances equipped with rechargeable batteries, the energy storage battery charges the rechargeable batteries of the electrical appliances. The pipeline pressure difference power generation and energy storage device described in the present invention can generate power by using the pipeline pressure difference on both sides of the valve, and supply power to the electrical appliances at the valve, thereby reducing the workload of replacing batteries.

Description

Technical Field

[0001] The present invention belongs to the technical field of power generation devices, and specifically refers to a pipeline pressure difference power generation and energy storage device. Background Art

[0002] In the field of modern pipeline engineering technology, valves are often equipped with various electrical appliances to achieve automatic control and monitoring functions, such as sensor valve position monitors, valve handle drive devices, etc. These electrical appliances play a vital role in ensuring the efficient, safe and accurate operation of the pipeline system.

[0003] However, the existing technical solutions have obvious deficiencies in powering electrical appliances at valves. Traditional methods mostly use rechargeable batteries or disposable batteries to provide power for these electrical appliances. When using rechargeable batteries, they need to be charged regularly. This requires pipeline maintenance personnel to arrive at the valve installation location at a specific time, connect the charging equipment and wait for charging to be completed. During this period, charging may be delayed due to human negligence or conflicts in work arrangements, affecting the normal use of electrical appliances. Moreover, in some large pipeline networks, the number of valves is large and widely distributed, and the workload of charging and maintenance one by one is huge, consuming a lot of manpower and time costs.

[0004] If disposable batteries are used, although the trouble of charging can be avoided to a certain extent, it brings the problem of frequent battery replacement. Since the electrical appliances at the valve are usually in a continuous working state or require regular data transmission, status monitoring and other operations, the battery power is consumed quickly. This requires maintenance personnel to frequently go to each valve position to check the battery power and replace it, which not only increases the maintenance frequency, but also during the battery replacement process, improper operation may affect the normal connection and operation of the valve electrical appliances, and may even cause the electrical appliances to stop working due to untimely battery replacement, causing the valve to lose monitoring and automatic control capabilities, which in turn poses a serious threat to the operational stability of the pipeline system, such as causing uncontrolled medium flow in the pipeline, abnormal pressure fluctuations and other adverse conditions, reducing the reliability and safety of the pipeline system operation, and also increasing the overall operating cost and management difficulty. Summary of the invention

[0005] In order to overcome the problems of the prior art, the present invention designs a pipeline pressure difference power generation and energy storage device, which can generate electricity by using the pipeline pressure difference on both sides of the valve and supply power to electrical appliances at the valve, thereby reducing the workload of replacing batteries.

[0006] In order to solve the above technical problems, the technical solution adopted by the present invention is as follows: a pipeline pressure difference power generation and energy storage device, including a valve, a branch pipeline, a generator, an energy storage battery and an isolation valve, the left and right sides of the valve are provided with pipeline connection ports, the two ends of the branch pipeline are respectively connected to the two pipeline connection ports, the isolation valve and the generator are provided on the branch pipeline, the generator uses the power generated by the water flow to drive the internal impeller to rotate to generate electricity, the energy storage battery is electrically connected to the generator, the electric energy generated by the generator is stored in the energy storage battery, the energy storage battery is used to power the electrical appliances at the pipeline valve, and for the electrical appliances equipped with rechargeable batteries, the energy storage battery charges the rechargeable batteries of the electrical appliances. Electrical appliances include various sensors, valve position monitors, electronic valve controls, data recorders, position controls and communication equipment.

[0007] Furthermore, a microcontroller is included, and a solid-state relay is provided on the circuit for the energy storage battery to charge the electrical appliance, and the solid-state relay is electrically connected to the microcontroller.

[0008] Furthermore, the pipeline connection port close to the high-pressure side of the pipeline is the outlet, and the pipeline connection port close to the low-pressure side of the pipeline is the inlet. There are two isolation valves, one isolation valve is arranged between the generator and the outlet, and the other isolation valve is arranged between the generator and the inlet.

[0009] Furthermore, it also includes a Y-type filter, which is arranged between the isolation valve and the outlet on the branch pipeline.

[0010] Furthermore, the branch pipeline is also provided with a pressure regulating valve, which is an electrically controlled valve, electrically connected to the microcontroller, and powered by the energy storage battery. The microcontroller regulates the pressure of the branch pipeline through the pressure regulating valve.

[0011] Furthermore, the valve is an automatic control valve, and the energy storage battery is also used to supply power to the valve.

[0012] As shown in the figure, a control system, which uses the above-mentioned pipeline pressure difference power generation and energy storage device, includes the microcontroller, and the microcontroller is provided with a power detection module and a charging module; the power detection module includes an electrical appliance battery power detection unit, and the electrical appliance battery power detection unit is used to detect the battery power of the electrical appliance; the charging module includes a relay control unit, and the relay control unit controls the solid-state relay to connect the charging circuit of the electrical appliance when the electrical appliance battery power detection unit detects that the battery power of the electrical appliance is lower than a threshold value, and the energy storage battery charges the electrical appliance.

[0013] Furthermore, the microcontroller is also provided with a power generation control module, which is used to control the generator to start or stop power generation; the power detection module also includes a generator battery power detection unit, which is used to detect the power of the energy storage battery; the power generation control module includes a start power generation unit, a stop power generation unit and a threshold setting unit, the start power generation unit is used to start the generator to generate power when the generator battery power detection unit detects that the power of the energy storage battery is lower than the low power threshold, and the stop power generation unit is used to shut down the generator to stop generating power when the generator battery power detection unit detects that the power of the energy storage battery is higher than the high power threshold; the threshold setting unit is used to set the low power threshold and the high power threshold. Ensuring that the energy storage battery has enough power for charging while avoiding excessive voltage affecting the service life helps to maximize the service life of the battery and the generator.

[0014] Furthermore, the microcontroller is also provided with a data uploading module, and the data uploading module is used to upload monitoring data to a cloud platform, and the cloud platform confirms whether the power generation and charging functions are operating normally by monitoring data changes.

[0015] Furthermore, the energy storage batteries of adjacent pipeline pressure difference power generation and energy storage devices are electrically connected via charging circuits; the microcontrollers of adjacent pipeline pressure difference power generation and energy storage devices are electrically connected to each other;

[0016] The microcontroller is also provided with a power consumption estimation module and a power allocation module; the power consumption estimation module estimates the power change of the energy storage battery within a specified future time according to the historical power generation data and power consumption data; the power allocation module controls the energy storage batteries connected electrically to charge each other;

[0017] The power consumption estimation module includes a charging amount prediction unit and a power consumption prediction unit, wherein the charging amount prediction unit is used to predict the power generation of the generator, and the power consumption prediction unit is used to predict the power consumption of each electrical appliance;

[0018] The specific steps of the electric energy allocation module controlling the electrically connected energy storage batteries to charge each other are as follows:

[0019] Step S1: When no charging request is received from other microcontrollers, the power of the energy storage battery is used to supply power to the battery of the electrical appliance at the same valve first; if the power of the energy storage battery is higher than the high power threshold, and the batteries of the electrical appliances at the same valve are fully charged, the energy storage battery charges the energy storage batteries at other connected valves; the energy storage battery with low power is charged first;

[0020] Step S2: when it is predicted that there is a risk of power exhaustion of the energy storage battery, other connected energy storage batteries are obtained, and a charging request is sent to the microcontroller connected to the energy storage battery with no risk of power exhaustion and the highest power;

[0021] Step S3: When the microcontroller receives a charging request, it controls the energy storage battery to charge the energy storage battery that is at risk of power exhaustion.

[0022] Furthermore, pressure gauges are provided at both ends of the generator on the branch pipeline for detecting pipeline pressure difference, the pressure gauges are electrically connected to the microcontroller, the generator is provided with an initial starting motor, the initial starting motor shaft is connected to the generator rotor shaft, the initial starting motor is electrically connected to the microcontroller, the power supply battery of the initial starting motor is electrically connected to the energy storage battery, the initial starting motor is used to overcome the static friction that hinders the rotation of the generator rotor, and the initial starting motor is turned off after the generator rotor starts to rotate;

[0023] The pressures measured by the two pressure gauges are P1 and P2 respectively, and the pressure difference P0 = P2-P1;

[0024] When the generator rotor does not rotate, if the measured pressure difference P0 is less than the starting pressure difference Pa, the initial starting motor is not started, and the starting pressure difference Pa is 0 by default;

[0025] When the generator rotor does not rotate, when the pressure difference P0 is measured to be greater than the starting pressure difference Pa, the initial starting motor is started to drive the generator rotor to rotate, and when the rotation of the generator rotor is detected, the initial starting motor is turned off;

[0026] If the rotor speed of the generator decreases until it stops after the initial starter motor is turned off, the pressure difference P0 when the rotor speed of the generator drops to 0 is recorded, and the value is assigned to the starting pressure difference Pa. The initial starter motor housing is set to start the generator more quickly to generate electricity, and assist the generator to overcome static friction, thereby improving the power generation efficiency.

[0027] The beneficial effects of a pipeline pressure difference power generation and energy storage device of the present invention are as follows: the convenience of power supply is improved, and the drawbacks of the traditional valve electrical power supply method are effectively solved. The pipeline pressure difference is used to generate electricity and store energy, and there is no need for frequent manual charging or battery replacement operations, which greatly reduces the maintenance workload and labor costs. In particular, in large-scale pipeline networks, the power supply problem of electrical appliances for numerous valves can be properly solved, which significantly improves the overall operating efficiency; efficient energy utilization, making full use of the pressure difference energy that was originally ignored in the pipeline system, converting it into electrical energy storage and applying it to various electrical appliances at the valve and the valve itself (if it is an automatic control valve), realizing energy recovery and reuse, improving energy utilization efficiency, and reducing dependence on external energy; through the microcontroller and related detection modules and control units, intelligent and precise control of the power generation and charging process is realized, the power detection module can monitor the power of the energy storage battery and the battery of the electrical appliance in real time, and the charging module can automatically charge the battery according to the power situation By controlling the on and off of the charging circuit, the power generation control module can start or shut down the generator at the right time, avoiding overcharging or over-discharging of the energy storage battery, effectively extending the service life of the battery and the generator, and ensuring the stable and reliable operation of the system; providing a stable and continuous power supply for the electrical appliances at the valve, ensuring the normal operation of sensors, valve position monitors, electronic valve controls, data recorders, position control and communication equipment, etc., and enhancing the stability of the system operation, so that the automatic control and monitoring functions of the valve can be stably exerted, effectively maintaining the stability of parameters such as medium flow and pressure in the pipeline system, avoiding adverse conditions such as flow loss control and abnormal pressure fluctuations caused by power supply problems, greatly improving the reliability and safety of the pipeline system operation, and reducing the operational risks and economic losses caused by equipment failure or abnormal operation; with the help of the data upload module, the monitoring data is uploaded to the cloud platform, which is convenient for remote real-time monitoring of the operating status of the power generation and charging functions, and is convenient for timely reporting and handling of problems. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 This is a schematic structural diagram of a pipeline pressure difference power generation and energy storage device according to the present invention;

[0029] Figure 2 A system architecture diagram of a control system of the present invention;

[0030] Figure 3 A system architecture diagram of a power consumption estimation module of a control system of the present invention.

[0031] Among them, 1-valve, 11-pipeline connection port, 111-export, 112-import, 2-branch pipeline, 3-generator, 4-energy storage battery, 41-solid-state relay, 5-isolation valve, 6-microcontroller, 61-power detection module, 611-electrical appliance battery power detection unit, 612-generator battery power detection unit, 62-charging module, 621-relay control unit, 63-power generation control module, 631-start power generation unit, 632-shutdown power generation unit, 633-threshold setting unit, 64-data upload module, 65-power consumption estimation module, 651-charging amount prediction unit, 652-power consumption prediction unit, 66-power allocation module, 7-Y-type filter, 8-pressure regulating valve. DETAILED DESCRIPTION

[0032] The technical solution of the present invention will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0033] like Figure 1 As shown, the present invention is a pipeline pressure difference power generation and energy storage device, including a valve 1, a branch pipeline 2, a generator 3, an energy storage battery 4 and an isolation valve 5. The valve 1 is provided with pipeline connection ports 11 on the left and right sides, and the two ends of the branch pipeline 2 are respectively connected to the two pipeline connection ports 11. The isolation valve 5 and the generator 3 are provided on the branch pipeline 2. The generator 3 uses the power generated by the water flow to drive the internal impeller to rotate to generate electricity. The energy storage battery 4 is electrically connected to the generator 3. The electric energy generated by the generator 3 is stored in the energy storage battery 4. The energy storage battery 4 is used to power the electrical appliances at the pipeline valve. For electrical appliances equipped with rechargeable batteries, the energy storage battery 4 charges the rechargeable batteries of the electrical appliances. Electrical appliances include various sensors, valve position monitors, electronic valve controls, data recorders, position controls and communication equipment.

[0034] Furthermore, a microcontroller 6 is included. A solid-state relay 41 is provided on the circuit for the energy storage battery 4 to charge the electrical appliance. The solid-state relay 41 is electrically connected to the microcontroller 6 .

[0035] Furthermore, the pipeline connection port 11 close to the high-pressure side of the pipeline is an outlet 111, and the pipeline connection port 11 close to the low-pressure side of the pipeline is an inlet 112. There are two isolation valves 5, one isolation valve 5 is arranged between the generator 3 and the outlet 111, and the other isolation valve 5 is arranged between the generator 3 and the inlet 112.

[0036] The isolation valve 5 can be an electrically controlled isolation valve, and the isolation valve 5 is electrically connected to the microcontroller 6. When the valve 1 needs to completely cut off the water flow, the microcontroller 6 controls the two isolation valves 5 to close to prevent the water flow from bypassing the valve 1 through the branch pipe 2 to generate flow.

[0037] Furthermore, a Y-type filter 7 is included, and the Y-type filter 7 is arranged between the isolation valve 5 and the outlet 111 on the branch pipeline 2.

[0038] Furthermore, the branch pipeline 2 is also provided with a pressure regulating valve 8, which is an electrically controlled valve, electrically connected to the microcontroller 6, and powered by the energy storage battery 4. The microcontroller 6 regulates the pressure of the branch pipeline 2 through the pressure regulating valve 8.

[0039] Furthermore, the valve 1 is an automatic control valve, and the energy storage battery 4 is also used to supply power to the valve 1 .

[0040] like Figure 2-3 As shown, a control system, using the above-mentioned pipeline pressure difference power generation and energy storage device, includes the microcontroller 6, and the microcontroller 6 is provided with a power detection module 61 and a charging module 62; the power detection module 61 includes an electrical appliance battery power detection unit 611, and the electrical appliance battery power detection unit 611 is used to detect the battery power of the electrical appliance; the charging module 62 includes a relay control unit 621, and the relay control unit 621 controls the solid-state relay 41 to connect the charging circuit of the electrical appliance when the electrical appliance battery power detection unit 611 detects that the battery power of the electrical appliance is lower than a threshold value, and the energy storage battery 4 charges the electrical appliance.

[0041] Furthermore, the microcontroller 6 is also provided with a power generation control module 63, which is used to control the generator 3 to start or stop power generation; the power detection module 61 also includes a generator battery power detection unit 612, which is used to detect the power of the energy storage battery 4; the power generation control module 63 includes a start power generation unit 631, a stop power generation unit 632 and a threshold setting unit 633, the start power generation unit 631 is used to start the generator 3 to generate electricity when the generator battery power detection unit 612 detects that the power of the energy storage battery 4 is lower than the low power threshold, and the stop power generation unit 632 is used to shut down the generator 3 to stop generating electricity when the generator battery power detection unit 612 detects that the power of the energy storage battery 4 is higher than the high power threshold; the threshold setting unit 633 is used to set the low power threshold and the high power threshold. Ensuring that the energy storage battery 4 has enough power for charging while avoiding excessive voltage affecting the service life helps to maximize the service life of the battery and the generator.

[0042] Furthermore, the energy storage batteries 4 of adjacent pipeline pressure difference power generation and energy storage devices are electrically connected via charging circuits; the microcontrollers 6 of adjacent pipeline pressure difference power generation and energy storage devices are electrically connected to each other;

[0043] The microcontroller 6 is also provided with a power consumption estimation module 65 and a power allocation module 66; the power consumption estimation module 65 estimates the power change of the energy storage battery 4 within a specified future time according to the historical power generation data and power consumption data; the power allocation module 66 controls the energy storage batteries 4 electrically connected to charge each other;

[0044] The power consumption estimation module 65 includes a charging amount prediction unit 651 and a power consumption prediction unit 652. The charging amount prediction unit 651 is used to predict the power generation of the generator 3, and the power consumption prediction unit 652 is used to predict the power consumption of each electrical appliance.

[0045] The specific steps of the electric energy allocation module 66 controlling the electrically connected energy storage batteries 4 to charge each other are as follows:

[0046] Step S1: When no charging request is received from other microcontrollers 6, the power of the energy storage battery 4 is used to supply power to the battery of the electrical appliance at the same valve first; if the power of the energy storage battery 4 is higher than the high power threshold, and the batteries of the electrical appliances at the same valve 1 are all full, the energy storage battery 4 charges the energy storage batteries 4 at other connected valves 1; the energy storage battery 4 with low power is charged first;

[0047] Step S2: when it is predicted that there is a risk of power exhaustion of the energy storage battery 4, other connected energy storage batteries 4 are obtained, and a charging request is sent to the microcontroller 6 connected to the energy storage battery 4 with no risk of power exhaustion and the highest power;

[0048] Step S3: When the microcontroller 6 receives a charging request, it controls the energy storage battery 4 to charge the energy storage battery 4 that is at risk of power exhaustion.

[0049] The valves of the pipeline system are usually centrally arranged for easy operation. The microcontrollers 6 of the pressure difference power generation and energy storage devices of different pipelines are electrically connected, and each valve 1 has a matching electrical appliance. When the power consumption estimation module determines that its own power generation is insufficient to maintain the power supply of the electrical appliance or a charging failure occurs, resulting in the energy storage battery 4 being unable to charge the electrical appliance, a power detection application can be initiated to the microcontroller 6 of the adjacent valve 1. Each microcontroller 6 that receives the power detection application obtains the power of the energy storage battery 4 and feeds it back to the microcontroller 6 that issues the charging application. The microcontroller 6 that issues the power detection application compares the remaining power of each energy storage battery 4, and issues a charging application to the microcontroller 6 of the pipeline pressure difference power generation and energy storage device with the largest remaining power in the energy storage battery 4. The microcontroller 6 that receives the charging application controls the energy storage battery 4 to charge the energy storage battery 4 or the electrical appliance of the adjacent pipeline pressure difference power generation and energy storage device.

[0050] Furthermore, pressure gauges are provided at both ends of the generator 3 on the branch pipeline 2 for detecting the pipeline pressure difference, and the pressure gauges are electrically connected to the microcontroller 6. When the pressure difference is insufficient, it is difficult for the pipeline water flow to drive the impeller of the generator 3 to rotate, and it is impossible to drive the rotor of the generator 3 to rotate for power generation. The generator 3 is provided with an initial starting motor, and the initial starting motor shaft is connected to the rotor shaft of the generator 3. The initial starting motor is an electrical appliance, and the initial starting motor is electrically connected to the microcontroller 6. The power supply battery of the initial starting motor is electrically connected to the energy storage battery 4. The initial starting motor is used to overcome the static friction that hinders the rotation of the rotor of the generator 3. The initial starting motor is turned off after the rotor of the generator 3 starts to rotate.

[0051] The pressures measured by the two pressure gauges are P1 and P2 respectively, and the pressure difference P0 = P2-P1;

[0052] When the rotor of the generator 3 does not rotate, when the pressure difference P0 is measured to be less than the starting pressure difference Pa, the initial starting motor is not started, and the starting pressure difference Pa is 0 by default; the generator 3 is provided with an encoder for detecting the rotation of the rotor of the generator 3;

[0053] When the rotor of the generator 3 does not rotate, when the pressure difference P0 is measured to be greater than the starting pressure difference Pa, the initial starting motor is started to drive the rotor of the generator 3 to rotate, and when the rotation of the rotor of the generator 3 is detected, the initial starting motor is turned off;

[0054] If the rotor speed of the generator 3 decreases until it stops after the initial starter motor is turned off, the pressure difference P0 when the rotor speed of the generator 3 drops to 0 is recorded, and the value is assigned to the starting pressure difference Pa. The initial starter motor housing is set to start the generator 3 more quickly to generate electricity, and assist the generator to overcome static friction, thereby improving the power generation efficiency.

[0055] Furthermore, it also includes a data uploading module 64, which is used to upload monitoring data to the cloud platform. The cloud platform confirms whether the power generation and charging functions are operating normally through changes in the monitoring data.

[0056] Specifically, a flow detection sensor is provided for detecting the flow of the branch pipe 2. Combined with the power detection module 61, an encoder is provided in the generator 3 for detecting the rotation of the impeller; if the flow is detected but the impeller rotation of the generator is not detected, it is judged that the generator is faulty; if the impeller rotation of the generator 3 is detected but the power detection module 61 does not detect the increase in the power of the energy storage battery 4, it is judged that the battery is faulty; if the impeller of the generator rotates but the power of the uncharged energy storage battery 4 does not increase accordingly, it is judged that the battery is faulty; and the judged fault type is fed back to the staff, who can log in to the cloud platform for viewing.

[0057] The beneficial effects of a pipeline pressure difference power generation and energy storage device of the present invention are as follows: the convenience of power supply is improved, and the drawbacks of the traditional valve electrical power supply method are effectively solved. The pipeline pressure difference is used to generate electricity and store energy, and there is no need for frequent manual charging or battery replacement operations, which greatly reduces the maintenance workload and labor costs. In particular, in large-scale pipeline networks, the power supply problem of electrical appliances for numerous valves can be properly solved, which significantly improves the overall operating efficiency; efficient energy utilization, making full use of the pressure difference energy that was originally ignored in the pipeline system, converting it into electrical energy storage and applying it to various electrical appliances at the valve and the valve itself (if it is an automatic control valve), realizing energy recovery and reuse, improving energy utilization efficiency, and reducing dependence on external energy; through the microcontroller and related detection modules and control units, intelligent and precise control of the power generation and charging process is realized, the power detection module can monitor the power of the energy storage battery and the battery of the electrical appliance in real time, and the charging module can automatically charge the battery according to the power situation By controlling the on and off of the charging circuit, the power generation control module can start or shut down the generator at the right time, avoiding overcharging or over-discharging of the energy storage battery, effectively extending the service life of the battery and the generator, and ensuring the stable and reliable operation of the system; providing a stable and continuous power supply for the electrical appliances at the valve, ensuring the normal operation of sensors, valve position monitors, electronic valve controls, data recorders, position control and communication equipment, etc., and enhancing the stability of the system operation, so that the automatic control and monitoring functions of the valve can be stably exerted, effectively maintaining the stability of parameters such as medium flow and pressure in the pipeline system, avoiding adverse conditions such as flow loss control and abnormal pressure fluctuations caused by power supply problems, greatly improving the reliability and safety of the pipeline system operation, and reducing the operational risks and economic losses caused by equipment failure or abnormal operation; with the help of the data upload module, the monitoring data is uploaded to the cloud platform, which is convenient for remote real-time monitoring of the operating status of the power generation and charging functions, and is convenient for timely reporting and handling of problems.

[0058] The present invention and its embodiments are described above, which is not restrictive. What is shown in the accompanying drawings is only one of the embodiments of the present invention, and the actual content is not limited to this. In short, if ordinary technicians in this field are inspired by it and do not deviate from the purpose of the invention, they can creatively design structural methods and embodiments similar to the technical scheme, which should all fall within the scope of protection of the present invention.

Claims

1. A pipeline pressure difference power generation and energy storage device, characterized in that: The invention comprises a valve (1), a branch pipe (2), a generator (3), an energy storage battery (4) and an isolation valve (5), wherein the valve (1) is provided with pipe connection ports (11) on the left and right sides, and the two ends of the branch pipe (2) are respectively connected to the two pipe connection ports (11), the isolation valve (5) and the generator (3) are provided on the branch pipe (2), the generator (3) uses the power generated by the water flow to drive the internal impeller to rotate to generate electricity, the energy storage battery (4) is electrically connected to the generator (3), the electric energy generated by the generator (3) is stored in the energy storage battery (4), the energy storage battery (4) is used to supply power to an electrical appliance at the pipe valve, and for an electrical appliance equipped with a rechargeable battery, the energy storage battery (4) charges the rechargeable battery of the electrical appliance; the invention also comprises a microcontroller (6), and a solid-state relay (41) is provided on the circuit for charging the electrical appliance by the energy storage battery (4), and the solid-state relay (41) is electrically connected to the microcontroller (6); Pressure gauges are also provided at both ends of the generator (3) on the branch pipeline (2) for detecting pipeline pressure difference. The pressure gauges are electrically connected to the microcontroller (6). The generator (3) is provided with an initial starting motor. The initial starting motor shaft is connected to the rotor shaft of the generator (3). The initial starting motor is electrically connected to the microcontroller (6). The power supply battery of the initial starting motor is electrically connected to the energy storage battery (4). The initial starting motor is used to overcome the static friction force that hinders the rotation of the rotor of the generator (3). The initial starting motor is turned off after the rotor of the generator (3) starts to rotate.

2. A pipeline pressure difference power generation and energy storage device according to claim 1, characterized in that: The pipeline connection port (11) close to the high-pressure side of the pipeline is an outlet (111), and the pipeline connection port (11) close to the low-pressure side of the pipeline is an inlet (112). There are two isolation valves (5), one of which is arranged between the generator (3) and the outlet (111), and the other of which is arranged between the generator (3) and the inlet (112).

3. A pipeline pressure difference power generation and energy storage device according to claim 2, characterized in that: It also comprises a Y-type filter (7), wherein the Y-type filter (7) is arranged between the isolation valve (5) and the outlet (111) on the branch pipeline (2).

4. The pipeline pressure difference power generation and energy storage device according to claim 1, characterized in that: The branch pipeline (2) is further provided with a pressure regulating valve (8), the pressure regulating valve (8) being an electrically controlled valve, the pressure regulating valve (8) being electrically connected to the microcontroller (6), and the pressure regulating valve (8) being powered by the energy storage battery (4).

5. A control system, using a pipeline pressure difference power generation and energy storage device as described in claims 1 to 4, characterized in that: The microcontroller (6) is provided with a power detection module (61) and a charging module (62); the power detection module (61) comprises an electrical appliance battery power detection unit (611), the electrical appliance battery power detection unit (611) being used to detect the battery power of the electrical appliance; the charging module (62) comprises a relay control unit (621), the relay control unit (621) controlling the solid-state relay (41) to connect the charging circuit for the electrical appliance when the electrical appliance battery power detection unit (611) detects that the battery power of the electrical appliance is lower than a threshold value, so that the energy storage battery (4) charges the electrical appliance.

6. A control system according to claim 5, characterized in that: The microcontroller (6) is further provided with a power generation control module (63), the power generation control module (63) being used to control the generator (3) to start or stop power generation; the power detection module (61) further comprises a generator battery power detection unit (612), the generator battery power detection unit (612) being used to detect the power level of the energy storage battery (4); the power generation control module (63) comprises a start power generation unit (631), a stop power generation unit (632) and a threshold setting unit (633), the start power generation unit (631) being used to start the generator (3) to generate power when the generator battery power detection unit (612) detects that the power level of the energy storage battery (4) is lower than a low power threshold, the stop power generation unit (632) being used to stop the generator (3) to stop generating power when the generator battery power detection unit (612) detects that the power level of the energy storage battery (4) is higher than a high power threshold; the threshold setting unit (633) being used to set a low power threshold and a high power threshold.

7. A control system according to claim 6, characterized in that: The microcontroller (6) is further provided with a data uploading module (64), and the data uploading module (64) is used to upload monitoring data to a cloud platform, and the cloud platform confirms whether the power generation and charging functions are operating normally through changes in the monitoring data.

8. A control system according to claim 6, characterized in that: The energy storage batteries (4) of adjacent pipeline pressure difference power generation and energy storage devices are electrically connected via charging lines; the microcontrollers (6) of adjacent pipeline pressure difference power generation and energy storage devices are electrically connected to each other; the microcontrollers (6) are also provided with a power consumption estimation module (65) and an electric energy allocation module (66); The power consumption estimation module (65) estimates the change in power of the energy storage battery (4) within a specified future time period based on historical power generation data and power consumption data; the power allocation module (66) controls the electrically connected energy storage batteries (4) to charge each other; The power consumption estimation module (65) comprises a charging amount prediction unit (651) and a power consumption prediction unit (652), wherein the charging amount prediction unit (651) is used to predict the power generation of the generator (3), and the power consumption prediction unit (652) is used to predict the power consumption of each electrical appliance; The specific steps of the electric energy allocation module (66) controlling the electrically connected energy storage batteries (4) to charge each other are as follows: Step S1: when no charging request is received from other microcontrollers (6), the power of the energy storage battery (4) is used to supply power to the battery of the electrical appliance located at the same valve first; if the power of the energy storage battery (4) is higher than the high power threshold, and the batteries of the electrical appliances at the same valve (1) are all fully charged, the energy storage battery (4) charges the energy storage batteries (4) at other connected valves (1); the energy storage battery (4) with low power is charged first; Step S2: when it is predicted that the energy storage battery (4) is at risk of running out of power, other connected energy storage batteries (4) are obtained, and a charging request is sent to the microcontroller (6) connected to the energy storage battery (4) that is not at risk of running out of power and has the highest power; Step S3: When the microcontroller (6) receives a charging request, it controls the energy storage battery (4) to charge the energy storage battery (4) that is at risk of running out of power.

9. A control system according to claim 6, characterized in that: The two pressure gauges at both ends of the generator (3) on the branch pipeline (2) measure pressures P1 and P2 respectively, and the pressure difference P0 = P2-P1; When the rotor of the generator (3) does not rotate and the measured pressure difference P0 is less than the starting pressure difference Pa, the initial starting motor is not started, and the starting pressure difference Pa is set to 0 by default; When the rotor of the generator (3) does not rotate, when the pressure difference P0 is measured to be greater than the starting pressure difference Pa, the initial starting motor is started to drive the rotor of the generator (3) to rotate, and when the rotation of the rotor of the generator (3) is detected, the initial starting motor is turned off; If the rotor speed of the generator (3) decreases until it stops after the initial starter motor is turned off, the pressure difference P0 when the rotor speed of the generator (3) decreases to 0 is recorded, and this value is assigned to the starting pressure difference Pa.

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