Liquid pressure increase adjusting system and pressure increase adjusting method

Abstract

The invention discloses a liquid pressure increase adjusting system and a pressure increase adjusting method, and relates to the technical field of liquid pressure control. The liquid pressure increase adjusting system comprises a control device, a pressure increase self-adaptive device and a pressure adjusting device; the pressure increasing self-adaptive device comprises a pressurizing pipeline, pressurizing equipment and a first pressure sensor; the pressurizing pipeline is used for being communicated with an inlet of a pipeline of liquid to be subjected to pressure regulation, the pressurizing equipment is arranged on the pressurizing pipeline, and the first pressure sensor is used for detecting pressure in the pressurizing pipeline; the pressure adjusting device comprises pressure adjusting equipment and a second pressure sensor, the pressure adjusting equipment is used for being communicated between an outlet of the pressurizing pipeline and an inlet of the pipeline of the liquid to be subjected to pressure adjustment, and the second pressure sensor is used for detecting the pressure in the pipeline of the liquid to be subjected to pressure adjustment; the supercharging device, the first pressure sensor, the pressure adjusting device and the second pressure sensor are all in electric control connection with the control device so as to achieve liquid supercharging and pressure adjusting of small or miniature instruments and other devices.

Description

Technical Field

[0001] The present invention relates to the technical field of liquid pressure control, and in particular to a liquid pressure increase regulation system and a pressure increase regulation method. Background Art

[0002] Liquid pressure control is widely used in industries such as medicine, petroleum, chemicals, electric power, and new energy. To meet process requirements, existing pressure regulation technologies are widely used for process adjustments in conventional or large-diameter pipelines. However, there are major challenges: a lack of design or application of liquid boosting and pressure regulation control systems for small or micro-instruments and other equipment to overcome the high pressure drop in small-diameter pipeline systems. Summary of the Invention

[0003] The purpose of the present invention is to provide a liquid pressure boosting and regulating system and a pressure boosting and regulating method to solve the problems existing in the above-mentioned prior art and to achieve liquid pressure boosting and pressure regulation of small or micro instruments and other equipment.

[0004] To achieve the above-mentioned object, the present invention provides the following solution: The present invention provides a liquid pressure increase and regulation system, comprising a control device, a pressure increase adaptive device, and a pressure regulation device;

[0005] The pressure boosting adaptive device includes a boosting pipeline, a boosting device, and a first pressure sensor; the boosting pipeline is used to communicate with the inlet of the liquid pipeline to be pressure-regulated, the boosting device is arranged on the boosting pipeline, and the first pressure sensor is used to detect the pressure in the boosting pipeline;

[0006] The pressure regulating device includes a pressure regulating device, a second pressure sensor and a flow sensor, wherein the pressure regulating device is used to communicate between the outlet of the boosting pipeline and the inlet of the liquid pipeline to be pressure-regulated, the second pressure sensor is used to detect the pressure in the liquid pipeline to be pressure-regulated, and the flow sensor is used to detect the flow in the liquid pipeline to be pressure-regulated;

[0007] The boosting device, the first pressure sensor, the pressure regulating device, the second pressure sensor and the flow sensor are all electrically connected to the control device.

[0008] Preferably, the liquid pipeline to be pressure-regulated is a liquid pipeline with a caliber of 3mm to 20mm.

[0009] Preferably, the flow rate of the liquid pipeline to be pressure-regulated is 3.6 L / h to 180 L / h.

[0010] Preferably, the boosting equipment includes but is not limited to a centrifugal pump, a reciprocating pump, a gear pump and a magnetic pump.

[0011] Preferably, the pressure regulating equipment includes but is not limited to a solenoid regulating valve, an electric valve and a proportional solenoid valve.

[0012] Preferably, the liquid-contacting parts of the first pressure sensor, the second pressure sensor and the flow sensor are all made of corrosion-resistant materials.

[0013] Preferably, the liquid contact parts of the boosting device and the liquid contact parts of the pressure regulating device are both made of materials that can withstand strong acid liquid media, strong alkali liquid media, high salt liquid media and high chlorine liquid media.

[0014] A pressure increase adjustment method is also provided, comprising the following steps:

[0015] S1. Pressure graded control:

[0016] Target pressure setting: Set the outlet pressure P0 of the liquid pipeline to be regulated;

[0017] Divide the pressure range: low pressure range: P1; medium pressure range: P; high pressure range: P2;

[0018] S2, boost stage start control:

[0019] First-stage boost start: When the outlet pressure of the boost pipe is detected to be less than P0, the boost equipment is started;

[0020] Secondary pressure regulation start: When it is detected that the outlet pressure of the liquid pipeline to be regulated is greater than or less than P0, the pressure regulating equipment is started;

[0021] Dynamic adjustment of the voltage regulating device using the required control method: The voltage regulating device is dynamically adjusted using the required control method based on the deviation from P0;

[0022] Anti-saturation design: locks the integral term during the boost phase to prevent overshoot;

[0023] Feedforward compensation: predict pressure fluctuations and dynamic changes in flow rate based on pressure changes, and adjust pressure regulating equipment in advance;

[0024] S3, safety protection control:

[0025] Overpressure protection: When the outlet pressure of the liquid pipeline to be regulated is greater than P0, and the pressure regulating equipment is at the critical point of control, and the duration T is greater than the set value, the booster and pressure regulating equipment will be shut down, and the high pressure alarm will be triggered and the fault will be recorded;

[0026] Underpressure protection: When the outlet pressure of the liquid pipeline to be regulated is less than P0, and the pressure regulating equipment is at the critical point of control, and the duration T is greater than the set value, the boosting equipment and the pressure regulating equipment will be shut down, and the low pressure alarm will be triggered and the fault will be recorded.

[0027] Preferably, in step S2, the required control methods include but are not limited to PID control, fuzzy control, predictive control, open-loop control, adaptive control, optimal control and electronic control technology.

[0028] Preferably, the electronic control technology includes but is not limited to duty cycle control.

[0029] Compared with the prior art, the present invention has achieved the following technical effects:

[0030] The liquid pressure boosting and regulating system disclosed in the present invention has a rational structural design and low manufacturing cost. It can meet the needs of high-precision online real-time control and regulation of liquid pressure, overcome the problem of large pressure loss in small-diameter pipeline systems, and solve the problem that existing small-diameter and low-flow areas of liquid cannot meet the requirements of low-pressure boosting and precise pressure regulation. It is conducive to improving the reliability, stability and service life of the real-time pressure control system. It can also be applied to the liquid boosting and pressure regulation control used in existing small or micro instruments and other equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0032] Figure 1 It is a structural schematic diagram of the liquid pressure increasing and regulating system disclosed in the present invention;

[0033] Figure 2 This is a control flow chart of the pressure increase adjustment method disclosed in the present invention;

[0034] Among them, 1-control device, 2-boosting pipeline, 3-liquid pipeline to be pressure-regulated, 4-boosting equipment, 5-first pressure sensor, 6-pressure regulating equipment, 7-second pressure sensor, 8-data communication cable, 9-flow sensor. DETAILED DESCRIPTION

[0035] The following will clearly and completely describe the technical solutions in the embodiments of the present invention 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 making creative efforts are within the scope of protection of the present invention.

[0036] The purpose of the present invention is to provide a liquid pressure boosting and regulating system and a pressure boosting and regulating method to solve the problems existing in the above-mentioned prior art and to achieve liquid pressure boosting and pressure regulation of small or micro instruments and other equipment.

[0037] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the present invention is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0038] like Figures 1 to 2 As shown, the present invention provides a liquid pressure increase and regulation system, including a control device 1, a pressure increase adaptive device, and a pressure regulation device; wherein the pressure increase adaptive device is used for pressure increase and pressure adaptive control, and the pressure regulation device is used for precise regulation and stable control of pressure.

[0039] The pressure boosting adaptive device includes a boosting pipeline 2, a boosting device 4, and a first pressure sensor 5. The boosting pipeline 2 is connected to the inlet of the liquid pipeline 3 to be pressure-regulated. The boosting device 4 is mounted on the boosting pipeline 2 and can be used for real-time communication and control. The first pressure sensor 5 is used to detect the pressure within the boosting pipeline 2 and is a miniature high-precision pressure sensor. Preferably, the first pressure sensor 5 can be replaced with a pressure transmitter, and a miniature high-precision pressure transmitter is used to provide direct data feedback. The liquid-contacting portion of the first pressure sensor 5, such as a probe, is mounted on the boosting pipeline 2 and located between the boosting device 4 and the pressure regulating device 6. Preferably, the boosting device 4 can be selected from, but not limited to, a centrifugal pump, a reciprocating pump, a gear pump, and a magnetic pump. The centrifugal pump is a miniature high-lift centrifugal pump, the reciprocating pump is a miniature reciprocating pump, and includes but is not limited to gear pumps, plunger pumps, and diaphragm pumps. The gear pump is a miniature gear pump, and the magnetic pump is a miniature magnetic pump.

[0040] The pressure regulating device includes a pressure regulating device 6, a second pressure sensor 7, and a flow sensor. The pressure regulating device 6 is used to connect the outlet of the boosting pipeline 2 and the inlet of the liquid pipeline 3 to be regulated, and can be used for real-time communication and control. The second pressure sensor 7 is used to detect the pressure in the liquid pipeline 3 to be regulated, and is a miniature high-precision pressure sensor. Preferably, the first pressure sensor 5 can be replaced with a pressure transmitter, and a miniature high-precision pressure transmitter is used to directly feedback data. The flow sensor 9 is used to detect the flow in the liquid pipeline 3 to be regulated, and is a miniature high-precision flow sensor. Preferably, the flow sensor 9 can be replaced with a flow transmitter, and a miniature high-precision flow transmitter is used. The liquid-contacting portion of the second pressure sensor 7, such as a probe, is disposed on the liquid pipeline 3 to be regulated, or on the liquid outlet of the pressure regulating device 6. The liquid-contacting portion of the flow sensor 9, such as a probe, is disposed on the liquid pipeline 3 to be regulated. Preferably, the pressure regulating device 6 can preferably be, but is not limited to, an electromagnetic control valve, an electric valve, and a proportional electromagnetic valve. Among them, the solenoid control valve uses a micro solenoid control valve, the electric valve uses a micro electric valve, and the proportional solenoid valve uses a micro proportional solenoid valve.

[0041] The boosting device 4, the first pressure sensor 5, the pressure regulating device 6, the second pressure sensor 7, and the flow sensor 9 are all electrically connected to the control device 1, and the control device 1 receives and processes the pressure feedback data after the boosting, as well as the pressure adjustment feedback data. The boosting device 4, the first pressure sensor 5, the pressure regulating device 6, the second pressure sensor 7, and the flow sensor 9 are all electrically connected to the control device 1 via a data communication cable 8, so that the data from the first pressure sensor 5, the second pressure sensor 7, and the flow sensor 9 can be fed back to the control device 1 in real time via the data communication cable 8, and the boosting device 4 and the pressure regulating device 6 can communicate with the control device 1 in real time via the data communication cable 8.

[0042] The booster device 4 must provide real-time feedback to the control device 1 via the data communication cable 8. Ultimately, the control device 1 parameter settings, the pressure feedback signal from the booster device 4, the data required to interlock the pressure regulating device, and the required control method are used to achieve real-time pressure increase and pressure adaptive control of the booster device 4. The pressure regulating device 6 must provide real-time feedback to the control device 1 via the data communication cable 8. Ultimately, the control device 1 parameter settings, the pressure feedback signal from the booster device 4, the data required to interlock the pressure increase adaptive device, and the required control method are used to achieve real-time pressure precision adjustment and stable control of the pressure regulating device 6.

[0043] As described above, first, the present invention provides a boosting device 4: it can have a boosting function, and when the pressure value detected by the first pressure sensor 5 and the second pressure sensor 7 is insufficient, the pressure in the boosting pipeline 2 and the liquid pipeline to be pressure-regulated 3 is increased by the boosting device 4; it can also be controlled to automatically adjust the pressure, which is achieved by feedback from the first pressure sensor 5 and based on the difference between the second pressure sensor 7 and the set pressure. The control device 1 will simultaneously control the boosting device 4 and the pressure regulating device 6 to automatically adjust the output pressure in coordination, and finally make the pressure value detected by the second pressure sensor 7 reach and maintain at the set pressure value. As a specific implementation method, since the boosting device 4 and the pressure regulating device 6 cooperate with each other to regulate the pressure, for example: the final required pressure of the liquid pipeline 3 to be pressure-regulated is P0, P0 is 0.5MPa, and the pressure values finally detected by the first pressure sensor 5 and the second pressure sensor 7 are both less than 0.5MPa, and then by adjusting the boosting device 4, the pressure of the boosting pipeline 2 and the liquid pipeline 3 to be pressure-regulated is increased. However, due to the fluid pressure loss, if the boosting device 4 is adjusted to 0.5MPa, the final pressure value P0 at the liquid pipeline 3 to be pressure-regulated is bound to be less than 0.5MPa, so the boosting device 4 needs to be adjusted to be greater than 0.5MP a range, and the corresponding pressure value is detected by the first pressure sensor 5 and the second pressure sensor 7. Assuming that the pressure value exceeds the adjustment range of the pressure regulating device 6, for example, the boosting device 4 increases the pressure to 1 MPa, but the pressure regulating device 6 can only be adjusted from 0.7 MPa to 0.5 MPa, and then under the control of the control device 1, the boosting device 4 self-adjusts, that is, it is found that the pressure regulation of the pressure regulating device 6 cannot meet the final required pressure value, and the output pressure of the boosting device 4 is automatically controlled to be reduced, for example, to 0.7 MPa, and then the final pressure adjustment is completed by the pressure regulating device 6 until 0.5 MPa, and this pressure value can be stabilized in the end.

[0044] Second, by setting up the flow sensor 9, the control device 1 can make predictions based on the flow rate. For example, the flow value detected by the flow sensor 9 is in a state of constantly rising or constantly falling, and the trend is still very obvious, but the pressure feedback of the first pressure sensor 5 and the second pressure sensor 7 is not particularly obvious. Then, the control device 1 performs feedforward adjustment according to the flow rate to ensure the stable state of the pressure, thereby realizing the auxiliary prediction function of the control device 1 through the back-end flow data.

[0045] Third, the greatest features of the present invention include the ability to achieve pressure boosting, pressure regulation and pressure stabilization of small flows, intelligent analysis and control of the control device 1, and auxiliary intelligent control represented by reference flow.

[0046] The present invention discloses a liquid pressure boosting and regulating system, which realizes coordinated regulation by independently operating a boosting device 4 and a pressure regulating device 6 and being controlled by a control device 1. The system has a reasonable structural design and low manufacturing cost, and can meet the demand for high-precision online real-time control and regulation of liquid pressure. At the same time, it can overcome the problem of large pressure loss in small-diameter pipeline systems, and solve the problem that the existing liquid small-diameter and small-flow areas cannot meet the requirements of low-pressure boosting and precise pressure regulation, which is conducive to improving the reliability, stability and service life of the real-time pressure control system. It can then be applied to liquid boosting and pressure regulation control used in existing small or micro instruments and other equipment. It can also be applied to liquid pipelines with a diameter of 3mm to 20mm, and to liquid pipelines with a flow rate of 3.6L / h to 180L / h.

[0047] In this embodiment, the control device 1 preferably adopts a complex embedded system design. Its hardware mainly adopts integrated circuits and is composed of a power module, a driver module, a program module, a communication module, a storage module, and a display and operation module. The software mainly consists of a main control program, a data storage program, a data processing and analysis program, a timing program, an alarm program, a communication program, an operation program, and a reset program.

[0048] The intelligent control process of the liquid pressure increasing and regulating system disclosed in the present invention is as follows:

[0049] The liquid medium enters the boosting device 4 through the inlet of the boosting pipe 2. The control device 1 controls the operation of the boosting device 4 through the data communication cable 8 to boost the liquid medium. After passing through the boosting device 4, the first pressure sensor 5 feeds back the pressure data after boosting through the data communication cable 8 to adjust the boosting control of the boosting device 4 in real time. The pressurized liquid enters the pressure regulating device 6. The control device 1 controls the pressure regulating device 6 through the data communication cable 8 to perform pressure regulation operation. At the same time, the second pressure sensor 7 feeds back the pressure data after regulation through the data communication cable 8 to adjust the pressure regulation control of the pressure regulating device 6 in real time. At the same time, the control device 1 selects the required control mode through the data communication feedback of the boosting device 4, the first pressure sensor 5, the pressure regulating device 6, and the second pressure sensor 7, and performs synchronous and interlocked high-precision regulation of the boosting device 4 and the pressure regulating device 6. At the same time, it can realize adaptive control and independent setting of the pressure of the boosting device 4 and precise and stable control of the pressure regulation of the pressure regulating device 6. The precisely regulated liquid passes through the liquid pipeline 3 to be pressure-regulated and is transported from the liquid outlet to the pressure demand end.

[0050] In one specific embodiment, the liquid-contacting components of the first and second pressure sensors 5 and 7, i.e., the probes, are made of corrosion-resistant materials to withstand harsh liquid media operating conditions such as strong acids, strong bases, high salt concentrations, and high chlorine concentrations. In this embodiment, the liquid-contacting components of the first and second pressure sensors 5 and 7, i.e., the probes, are preferably covered with an anti-corrosion coating.

[0051] In one specific embodiment, the fluid-contacting components of the booster device 4 and the pressure regulating device 6 are both made of materials capable of withstanding strong acid, strong alkali, high-salt, and high-chloride liquid media, and are therefore suitable for operating in harsh liquid media conditions such as those involving strong acids, strong alkalis, high salts, and high chlorine levels. In this embodiment, the fluid-contacting components of the booster device 4 and the pressure regulating device 6 are preferably made of high-strength engineering plastics such as PEEK.

[0052] Furthermore, a pressure increase adjustment method is provided, comprising the following steps:

[0053] S1. Pressure graded control:

[0054] Target pressure setting: Set the outlet pressure P0 of the liquid pipeline 3 to be pressure-regulated;

[0055] Divide the pressure range: low pressure range: P1; medium pressure range: P; high pressure range: P2;

[0056] S2, boost stage start control:

[0057] First-stage boost start: When the outlet pressure of the boost pipe 2 (the pressure value detected by the first pressure sensor 5) is detected to be less than P0, the boost device 4 is started;

[0058] Secondary pressure regulation start: When it is detected that the outlet pressure of the liquid pipeline 3 to be pressure-regulated (the pressure value detected by the second pressure sensor 7) is greater than or less than P0, the pressure regulating device 6 is started;

[0059] The pressure regulating device 6 is dynamically adjusted using a desired control method: the pressure regulating device 6 is dynamically adjusted using a desired control method based on the deviation from P0; for example, the pressure regulating device 6 uses a controlled electromagnetic proportional control valve, and when adjusting the pressure regulating device 6, the opening of the controlled electromagnetic proportional control valve is adjusted;

[0060] Anti-saturation design: locks the integral term during the boost phase to prevent overshoot;

[0061] Feedforward compensation: Predict pressure fluctuations and dynamic changes in flow rate based on pressure changes, and adjust the pressure regulating device 6 in advance. For example, if the pressure regulating device 6 uses a controlled electromagnetic proportional control valve, the opening of the controlled electromagnetic proportional control valve is adjusted when adjusting the pressure regulating device 6.

[0062] S3, safety protection control:

[0063] Overpressure protection: When the outlet pressure of the liquid pipeline 3 to be pressure-regulated is greater than P0, and the pressure regulating devices 6 are all at the critical point of control, if closed, and the duration T is greater than the set value, the boosting device 4 and the pressure regulating device 6 are closed, and the high-pressure alarm is triggered and the fault is recorded;

[0064] Underpressure protection: When the outlet pressure of the liquid pipeline 3 to be pressure-regulated is less than P0, and the pressure regulating devices 6 are all at the critical point of control, such as fully open, and the duration T is greater than the set value, the boosting device 4 and the pressure regulating device 6 are closed, and the low pressure alarm is triggered and the fault is recorded.

[0065] In the entire pressure increase and regulation method, energy saving and efficiency are optimized: load adaptation; coordinated operation of boosting and pressure regulation; and setting of fluctuation ranges of first-stage boosting and second-stage pressure regulation.

[0066] In a specific embodiment, in step S2, the required control methods include, but are not limited to, PID control, fuzzy control, predictive control, open-loop control, adaptive control, optimal control, and electronic control technologies. When boosting and regulating pressure, the control device 1 can employ different control methods based on different requirements, enabling the start and stop of the boosting device 4 and the pressure regulating device 6, as well as synchronous and interlocked regulation. This allows for adaptive control and autonomous setting of the pressure of the boosting device 4, and precise and stable control of the pressure regulation of the pressure regulating device 6. Preferably, electronic control technologies include, but are not limited to, duty cycle control.

[0067] Adaptive changes based on actual needs are all within the scope of protection of the present invention.

[0068] It should be noted that it will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the present invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the present invention is defined by the appended claims, not the foregoing description, and it is intended that all variations within the meaning and range of equivalents of the claims be encompassed within the present invention. Any reference signs in the claims should not be construed as limiting the claim to which they relate.

[0069] The present invention uses specific examples to illustrate the principles and implementation methods of the present invention. The above examples are only intended to help understand the method and core concept of the present invention. At the same time, those skilled in the art will find that the specific implementation methods and application scopes may vary based on the concept of the present invention. In summary, the contents of this specification should not be construed as limiting the present invention.

Claims

1. A liquid pressure increasing and regulating system, characterized in that: Including control device, pressure increase adaptive device, pressure regulating device; The pressure boosting adaptive device includes a boosting pipeline, a boosting device, and a first pressure sensor; the boosting pipeline is used to communicate with the inlet of the liquid pipeline to be pressure-regulated, the boosting device is arranged on the boosting pipeline, and the first pressure sensor is used to detect the pressure in the boosting pipeline; The pressure regulating device includes a pressure regulating device, a second pressure sensor and a flow sensor, wherein the pressure regulating device is used to communicate between the outlet of the boosting pipeline and the inlet of the liquid pipeline to be pressure-regulated, the second pressure sensor is used to detect the pressure in the liquid pipeline to be pressure-regulated, and the flow sensor is used to detect the flow in the liquid pipeline to be pressure-regulated; The boosting device, the first pressure sensor, the pressure regulating device, the second pressure sensor and the flow sensor are all electrically connected to the control device.

2. The liquid pressure increasing and regulating system according to claim 1, characterized in that: The liquid pipeline to be pressure-regulated is a liquid pipeline with a caliber of 3mm to 20mm.

3. The liquid pressure increasing and regulating system according to claim 1, characterized in that: The flow rate of the liquid pipeline to be pressure-regulated is 3.6L / h to 180L / h.

4. The liquid pressure increasing and regulating system according to claim 1, characterized in that: The boosting equipment includes but is not limited to a centrifugal pump, a reciprocating pump, a gear pump and a magnetic pump.

5. The liquid pressure increasing and regulating system according to claim 1, characterized in that: The pressure regulating equipment includes but is not limited to a solenoid regulating valve, an electric valve and a proportional solenoid valve.

6. The liquid pressure increasing and regulating system according to claim 1, characterized in that: The liquid-contacting parts of the first pressure sensor, the second pressure sensor and the flow sensor are all made of corrosion-resistant materials.

7. The liquid pressure increasing and regulating system according to claim 1, characterized in that: The liquid contact parts of the boosting device and the liquid contact parts of the pressure regulating device are both made of materials that can withstand strong acid liquid media, strong alkali liquid media, high salt liquid media and high chlorine liquid media.

8. A pressure boosting and regulating method using the liquid pressure boosting and regulating system according to any one of claims 1 to 7, characterized in that: The steps include: S1. Pressure graded control: Target pressure setting: Set the outlet pressure P0 of the liquid pipeline to be regulated; Divide the pressure range: low pressure range: P1; medium pressure range: P; high pressure range: P2; S2, boost stage start control: First-stage boost start: When the outlet pressure of the boost pipe is detected to be less than P0, the boost equipment is started; Secondary pressure regulation start: When it is detected that the outlet pressure of the liquid pipeline to be regulated is greater than or less than P0, the pressure regulating equipment is started; Dynamic adjustment of the voltage regulating device using the required control method: The voltage regulating device is dynamically adjusted using the required control method based on the deviation from P0; Anti-saturation design: locks the integral term during the boost phase to prevent overshoot; Feedforward compensation: predict pressure fluctuations and dynamic changes in flow rate based on pressure changes, and adjust pressure regulating equipment in advance; S3, safety protection control: Overpressure protection: When the outlet pressure of the liquid pipeline to be regulated is greater than P0, and the pressure regulating equipment is at the critical point of control, and the duration T is greater than the set value, the booster and pressure regulating equipment will be shut down, and the high pressure alarm will be triggered and the fault will be recorded; Underpressure protection: When the outlet pressure of the liquid pipeline to be regulated is less than P0, and the pressure regulating equipment is at the critical point of control, and the duration T is greater than the set value, the boosting equipment and the pressure regulating equipment will be shut down, and the low pressure alarm will be triggered and the fault will be recorded.

9. The pressure increase adjustment method according to claim 8, characterized in that: In step S2, the required control methods include but are not limited to PID control, fuzzy control, predictive control, open-loop control, adaptive control, optimal control and electronic control technology.

10. The pressure increase adjustment method according to claim 9, characterized in that: The electronic control techniques include but are not limited to duty cycle control.

Images