Comprehensive energy utilization integrated device suitable for oilfield construction

Abstract

The invention discloses a comprehensive energy utilization integrated device suitable for oilfield construction, which comprises a photovoltaic solar photo-thermal module, a breeze direct heating module, a photovoltaic grid electric auxiliary heating module and a multi-energy coupling phase change control module, and the multi-energy coupling phase change control module controls an air source unit heat pump heat storage module. And after being buffered, separated and heated by the separation buffer module, the hot air enters the output module to be pressurized and output. According to the invention, multi-energy utilization of new energy is realized to replace a single energy utilization mode of gas heating; full-intelligent, digital and unattended operation of the oil transfer station is achieved, system load flexible matching, new energy application and exhaustion and energy structure follow-up adjustment are achieved, and peak regulation and new energy consumption of an oil network can be achieved through follow-up adjustment and distributed group control based on big data; and real-time prediction of energy consumption of the transfer oil station, and continuous tracking prediction of carbon emission, energy structures and the like are realized.

Description

Technical Field

[0001] This invention relates to the field of equipment technology used in standardized integrated replacement stations for oilfield construction, and particularly to an integrated energy utilization device suitable for oilfield construction. Background Technology

[0002] According to the development plan of Liaohe Oilfield, we will vigorously promote the integrated development of oil and gas exploration and development with new energy, actively expand the scale of green electricity development and utilization by oil and gas enterprises, and plan to increase the electrification rate to 16.1% and the proportion of non-fossil energy consumption to 7.9% by 2026.

[0003] Liaohe Oilfield has a high proportion of heavy oil. In recent years, it has successively adopted measures such as process optimization to reduce energy consumption and carbon emissions, geothermal / waste heat utilization, and wind and solar power generation. However, natural gas still accounts for more than 89% of energy consumption, resulting in high carbon emissions, low electrification rate, and low utilization rate of new energy sources. There is an urgent need for further research and breakthroughs in promoting energy conservation and carbon reduction and increasing electrification rate on the energy consumption side, and promoting clean energy substitution on the energy supply side. Currently, gas-fired heating furnaces are mostly used to meet the heating and transportation needs of heavy oil blocks. These furnaces consume large amounts of gas and have high carbon emissions, necessitating clean energy substitution. Low-carbon heating and new energy integration technologies are urgently needed.

[0004] The multi-energy coupling integrated device primarily utilizes new energy power generation, supplemented by grid power emergency response. It replaces conventional gas-fired heating furnaces, enabling the heating and transportation of crude oil in the heavy oil gathering and transportation system. Based on basic parameters such as oil viscosity and pour point, it establishes a pouring trend prediction model and energy consumption control mode for associated oil gathering pipelines, achieving deep coupling between new energy utilization and the heavy oil gathering and transportation system, thereby improving the electrification rate of end-use energy and the utilization rate of new energy.

[0005] Currently, oilfield gathering and transportation systems primarily rely on single-supply methods for heating, with no integrated multi-energy coupling devices yet being applied. The key to the widespread application of this invention lies in achieving coordinated control of multi-energy coupling and deep integration of new energy power generation with energy consumption in the gathering and transportation system. Summary of the Invention

[0006] To address the aforementioned problems, this invention provides an integrated energy utilization device suitable for oilfield construction.

[0007] To solve the above-mentioned technical problems, the technical solution of the present invention is: an integrated energy utilization device suitable for oilfield construction, comprising a photovoltaic solar thermal module, a micro-wind direct heating module, a photovoltaic grid electric auxiliary heating module connected to a multi-energy coupling phase change control module. The multi-energy coupling phase change control module controls the air source unit heat pump heat storage module and provides a heat source to the separation buffer module. After the collected oil is buffered, separated, and heated by the separation buffer module, it enters the external transmission module for pressurization and external transmission.

[0008] Furthermore, the multi-energy coupled phase change control module integrates photovoltaic solar thermal modules, micro-wind direct heating modules, and photovoltaic grid electric auxiliary heating modules, and coordinates and controls these three modules, prioritizing the optimal energy ratio based on the surrounding environment and future weather forecasts. This module employs a dynamic phase change thermal energy storage method to store excess heat energy from wind and photovoltaic power. When wind and solar heat are insufficient, the photovoltaic grid electric auxiliary heating module supplies heat storage energy to the air source unit's heat pump module. It monitors and coordinates the operating conditions of the air source unit's heat pump network source-load-storage links; integrates signal acquisition and conversion, weather tracking data decision control matching regulation, and performs multi-energy regulation for high and low temperature requirements.

[0009] Furthermore, the photovoltaic solar thermal module: adopts a high-efficiency convective solar thermal hot air system for direct heating, and the generated heat energy is calculated, allocated, and coupled by a multi-energy coupled phase change thermal storage module to supply the air source unit heat pump heat storage module. When the energy demand of the air source unit heat pump is exceeded, it is supplied to the air source unit heat pump heat storage module.

[0010] Furthermore, the micro-wind direct heating module: uses a small fan to directly generate heat, and the heat energy generated is calculated, allocated and coupled with the multi-energy coupled phase change heat storage module and then supplied to the air source unit heat pump in the air source unit heat pump heat storage module for direct use. When the energy demand of the air source unit heat pump is exceeded, it is supplied to the air source unit heat pump for heat storage.

[0011] Furthermore, the photovoltaic grid-assisted heating module adopts a source-grid-load-storage energy storage method. When wind heat or photovoltaic solar thermal energy is insufficient or green electricity or off-peak electricity is excessive, the photovoltaic grid-assisted heating module converts electrical energy into heat energy and stores this heat energy in a dynamic phase change hot water storage tank. It integrates signal acquisition and conversion, power matching and control, and high and low temperature multi-energy control.

[0012] Furthermore, the air source heat pump heat storage module consists of a multi-stage cascaded air source heat pump and a dynamic phase change heat storage tank. It uses air as a low-temperature heat source and is driven by a small amount of high-grade electricity. The heating medium enters the heating coil at the bottom of the separation buffer module, and is integrated with signal acquisition, mobile APP and PC remote control.

[0013] Furthermore, the separation buffer module adopts a horizontal separation buffer tank with a saddle support structure to complete the buffering of the medium and the gas-liquid two-phase separation of the medium; its inlet is equipped with a pre-separator, the inside is equipped with a separation box, the gas outlet is equipped with a wire mesh demister, and the lower part is equipped with a heating coil. The medium in the coil is hot water, and there is a baffle in the middle. After being heated to the required temperature for external output, it enters the external output module.

[0014] Furthermore, the external delivery module: After the fluid from the well site is separated and heated by the separation buffer module, the separated fluid enters the external delivery pump in the external delivery module through the control valve for pressurization and external delivery. The liquid level and temperature of the external delivery pump and the separation buffer module are interlocked. The pump starts when the inlet temperature requirement of the external delivery pump is met and does not exceed the highest liquid level in the tank, and stops when the inlet temperature requirement of the external delivery pump is not met or the liquid level is low. The signal acquisition temperature, pressure and flow matching control unit is integrated to perform frequency conversion control according to the liquid volume.

[0015] Furthermore, the external pump is a screw pump.

[0016] Furthermore, a filter is installed at the inlet of the external pump, and a safety valve is installed at the outlet.

[0017] The beneficial effects of this invention are as follows: it realizes the multi-energy utilization of new energy sources to replace the single energy consumption mode of gas heating, achieves 100% electrification rate of the equipment, and the utilization rate of new energy sources is greater than 70%, which helps to improve the electrification rate of oil fields and reduces carbon emissions from energy gathering and transportation by 10%; it realizes the fully intelligent, digital, and unattended operation of oil transfer stations, with flexible matching of system load, full utilization of new energy applications, and dynamic adjustment of energy structure. This dynamic adjustment and distributed group control based on big data can realize peak shaving of the oil network and consumption of new energy sources; it enables real-time prediction of energy consumption of oil transfer stations and continuous tracking and prediction of energy consumption, carbon emissions, and energy structure for the next 24 hours, 7 days, and 15 days. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in this invention or related technologies, the accompanying drawings used in the description of the embodiments or related technologies will be briefly introduced below. Obviously, the accompanying drawings described below are some embodiments of this invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of the present invention. Detailed Implementation

[0020] The following will be combined with the appendix Figure 1 The technical solutions of the present invention have been clearly and completely described. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0021] The present invention is described in detail below through specific embodiments, but this does not limit the scope of protection of the present invention. Unless otherwise specified, the experimental methods used in the present invention are all conventional methods, and the experimental equipment, materials, reagents, etc. used can all be obtained commercially.

[0022] In the description of the present invention, it should be noted that the orientation or positional relationship indicated by terms such as "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or component referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus cannot be construed as a limitation to the present invention. In addition, terms such as "first", "second", "third" are only used for distinction and cannot be construed as indicating or implying relative importance.

[0023] In addition, the technical features involved in different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0024] An integrated device for comprehensive energy utilization applicable to oilfield construction includes a photovoltaic solar thermal module, a breeze direct heating module, a photovoltaic grid power auxiliary heating module connected to a multi-energy coupling phase change control module. The multi-energy coupling phase change control module controls an air source unit heat pump energy storage module and provides heat source to a separation buffer module. After the oil transported for gathering and transportation is buffered, separated, and heated by the separation buffer module, it enters the external transportation module and is externally transported after pressurization.

[0025] Multi-energy coupling phase change control module: Connects to the photovoltaic solar thermal module, the breeze direct heating module, and the photovoltaic grid power auxiliary heating module, and coordinately controls the above three modules, and preferentially performs the best energy ratio according to the surrounding environment and future weather prediction. The multi-energy coupling phase change control module adopts a dynamic phase change heat storage and energy storage method to store the excess heat energy of wind power and photovoltaic. When the wind heat and solar heat are insufficient, it uses the photovoltaic grid power auxiliary heating module to supply the air source unit heat pump energy storage module for use; monitors and coordinately controls the operating conditions of the air source unit heat pump network source load storage link. Integrates signal acquisition conversion, meteorological tracking data decision control matching regulation, and performs multi-energy regulation for high and low temperature requirements to achieve intelligent regulation and operation of the clean energy system and improve the utilization rate of new energy.

[0026] Photovoltaic solar thermal module: Adopts an efficient convective solar thermal hot air system for direct heating. The generated heat energy is calculated, allocated, and coupled by the multi-energy coupling phase change heat storage module and then supplied to the air source unit heat pump energy storage module for use. When it exceeds the energy demand of the air source unit heat pump, it supplies heat to the air source unit heat pump energy storage.

[0027] Breeze direct heating module: Adopts a small fan for direct heating. The generated heat energy is calculated, allocated, and coupled by the multi-energy coupling phase change heat storage module and then directly supplied to the air source unit heat pump in the air source unit heat pump energy storage module for use. When it exceeds the energy demand of the air source unit heat pump, it supplies heat to the air source unit heat pump energy storage.

[0028] Photovoltaic grid-assisted heating module: Primarily relying on the existing power grid, this module employs a source-grid-load-storage energy storage approach to ensure the stability of the production system's power consumption and the economic efficiency of the multi-energy coupling phase change control module during off-peak hours. When wind and solar thermal energy are insufficient, or when green electricity or off-peak electricity is abundant, the photovoltaic grid-assisted heating module converts electrical energy into heat energy, which is then coupled and stored in a dynamic phase change hot water storage tank. It integrates signal acquisition and conversion, power matching and control, and high / low temperature multi-energy regulation to achieve intelligent system operation.

[0029] Air source heat pump heat storage module: Composed of a multi-stage cascade air source heat pump and a dynamic phase change water storage tank, it uses air as a low-temperature heat source. Driven by a small amount of high-grade electricity, it raises the low-grade heat energy in the air to high-grade heat energy, rapidly heating the pipe walls and the water inside. The heated water then enters the heating coil at the bottom of the separation buffer module, rapidly heating the tank body and the medium inside. It features multiple protection mechanisms, including real-time monitoring of current, voltage, temperature, and pressure, with rapid response in case of abnormal conditions. Intelligent control allows for remote control via a mobile app and PC, and can also be integrated into the oilfield A11 management system.

[0030] Separation and Buffer Module: Adopting a saddle-supported horizontal structure, this module primarily performs media buffering and gas-liquid two-phase separation. It features a pre-separator at the inlet, a separation chamber inside, a wire mesh demister at the gas outlet, and a heating coil at the bottom. The medium inside the coil is hot water, and a baffle in the middle prevents disturbance to the liquid surface during gas flow. The oil-gas mixture enters at a certain velocity through the inlet, colliding with the baffle and initially separating into gas and liquid phases. The initially separated liquid falls into the lower part of the equipment, where the heating coil heats the dissolved gas to ensure complete and natural separation, preventing solidification if the liquid is high-pour-point crude oil. The initially separated gas then enters the separation chamber located above the baffle along the equipment cylinder. Under gravity, droplets mixed in the gas are further separated through the separation chamber. Gas flowing out of the separation chamber collides with the wire mesh demister and adheres to its surface, gradually forming larger droplets that fall into the liquid phase of the equipment.

[0031] External Delivery Module: After the incoming fluid from the well site is separated and heated by the separation and buffer module, the separated fluid enters the external delivery pump within the module via a control valve for pressurization and external delivery. The external delivery pump and the separation and buffer module are interlocked in terms of liquid level and temperature. The pump starts when the inlet temperature requirement is met and does not exceed the highest liquid level in the tank; it stops when the inlet temperature requirement is not met or the liquid level is low. A signal acquisition unit for temperature, pressure, and flow matching and control is integrated, and frequency conversion control is performed based on the fluid volume. The external delivery pump selection should meet relevant requirements, and a screw pump is recommended. The motor should be explosion-proof, with an explosion-proof rating of ExdⅡBT4. A filter is installed at the inlet of the external delivery pump, and a safety valve is installed at the outlet.

[0032] Multi-energy coupling and follow-up regulation: Taking heat load output as the homogenization target, custom algorithm models of various heterogeneous energy mechanisms are developed, along with coupling-assisted models. The system is equipped with a multi-energy coupling algorithm supported by smart energy big data and edge computing terminals, achieving efficient homogenization and coupling of various heterogeneous energy sources through second-level data acquisition and processing plus minute-level coupling and follow-up regulation.

[0033] Weather tracking and energy consumption prediction: The system accesses weather tracking data from multiple platforms and develops customized weather tracking algorithms based on equipment mechanisms and weather conditions. It can predict, sense, and regulate changes in carbon emissions and energy consumption caused by uncontrollable green energy utilization methods such as solar thermal, wind thermal, and air energy in the multi-energy coupling process.

[0034] Smart microgrid system: Develop and design smart microgrid systems that integrate green electricity, off-peak electricity, and local power consumption, and smart heating network systems that integrate waste heat utilization, wind heating, solar heating, air source heat pumps, multi-energy coupled phase change control modules, heat exchange, and other system processes, based on a comprehensive smart microgrid system with dual networks running in tandem.

[0035] Flexible matching of external heat load: Based on load tracking, multiple heterogeneous energy homogeneous coupling modeling is used to adaptively control and match external heat load in real time. The flexible adaptation matching range can reach 0-200%, which can meet the flexible production requirements of the well site to the greatest extent.

[0036] Cloud-edge collaborative data decision control system: Based on the computational logic of various heterogeneous energy devices, it realizes the identification of key features and model optimization of heterogeneous energy participation in scheduling, the distribution of computing power on the edge side, remote algorithm upgrade, and realizes cloud-edge collaboration to form real-time big data decision-making regulation and control and distributed group control.

[0037] This innovative achievement utilizes a multi-energy coupling power generation technology to convert various clean energy sources into thermal energy, while simultaneously storing excess thermal energy and performing heat exchange in a heat exchanger. This invention avoids the waste of low-carbon new energy resources, and competitors urgently need this innovation to solve these existing problems and rely on it.

[0038] This innovative achievement utilizes and converts clean energy to maximize its efficiency and achieve the expected production benefits. It ensures stable operation of the equipment in actual production environments, replaces transfer stations, reduces energy consumption, and minimizes environmental pollution. Simultaneously, it contributes to the achievement of "dual carbon" targets (carbon reduction, carbon emission reduction, and carbon sequestration).

[0039] The oil transfer station is constructed as a four-dimensional integrated system of "source, grid, load, and storage". While realizing the integrated skid-mounted design of oil transfer and heating, the four-dimensional integrated functions of "source, grid, load, and storage" are integrated simultaneously. "Source" is the energy production unit, namely power generation and heating; "grid" is the intelligent microgrid unit, with intelligent microgrid and intelligent micro heating network running in tandem; "load" is the integrated skid-mounted heat load and electrical load; and "storage" is the multi-energy coupling phase change control module unit based on high dynamics.

[0040] The innovative achievements will be applied to the optimization of oil and gas gathering and transportation systems in the Cicai, Jincai, and Huancai oilfields of Liaohe Oilfield within the next three years, with a large expected market scale and significant economic and social benefits. In the Cicai 629 block, using this equipment, 192,000 tons of liquid can be transported annually, achieving a natural gas consumption reduction of 435,000 tons / year and saving 107,300 yuan in costs. Carbon emissions will be reduced by 2.34 million tons / year, and energy consumption will be reduced by 4.31 million tons of standard coal equivalent. In the Jincai 7 and 607 blocks, using this equipment, 119,000 tons of liquid can be transported annually, achieving a natural gas consumption reduction of 304,800 tons / year and saving 48,000 yuan in costs. Carbon emissions will be reduced by 1.33 million tons / year, and energy consumption will be reduced by 2.95 million tons of standard coal equivalent. Within the next 3-5 years, large-scale consumption of green electricity will be achieved, significantly increasing the electrification rate and new energy utilization rate of oilfield terminals, reducing natural gas consumption in the oilfield gathering and transportation system, saving energy, and contributing to the achievement of CNPC's "dual-carbon" goals. It also has reference value for the current status and future planning of surface production systems, generating substantial economic and social benefits.

[0041] The oilfield's self-built wind and solar power generation systems supply power to the air-source heat pump units of the heavy oil gathering and transportation system via a multi-energy coupling coordinated control module. When there is surplus heat from wind and solar power, it is stored in the multi-energy coupling phase change control module. When wind and solar power are insufficient, the phase change energy storage module and the grid power module supplement the power supply to the air-source heat pump units. The operating conditions of wind power, solar power, energy storage, grid power, and the air-source heat pump units are optimized and managed by the multi-energy coupling coordinated control module to maximize the utilization rate of new energy sources.

[0042] In production, photovoltaic solar thermal energy, direct wind heating, photovoltaic grid electric auxiliary heating, and air energy are used as mediums to achieve multi-energy coupling and recovery of new energy sources and generate heat energy. Furthermore, optimization and matching are implemented between various coupling methods of new energy utilization and meteorological forecast parameters and production prediction data.

[0043] This is a dynamic integrated control unit for a variable-condition crude oil transportation and new energy power generation system. During system operation, the control center collects data on the inlet pressure, temperature, flow rate of the heating devices, and surrounding environmental conditions. Through intelligent calculation, it determines the variable-condition scenarios and the loads matched with various heating methods. Based on the calculated heating output, it regulates the various heating methods. Taking summer as an example, when solar energy resources are abundant, priority is given to using solar thermal and wind thermal coupling, with energy storage. The control valves for the branch heat exchange methods entering the secondary and tertiary heat exchangers are selected to control the system, achieving intelligent control and operation of the system.

[0044] To better meet the needs of gathering and transportation, the unit is equipped with one separation buffer tank. Due to fluctuations in production volume, the gas is heated by the multi-energy coupled heating equipment and then enters the separation buffer tank. After separation in the separation buffer tank, it is heated again. The gas is transported out through the pipeline network, and the oil is pressurized and transported out through the booster pump.

[0045] The embodiments described above are merely preferred embodiments of the present invention, and not all feasible embodiments of the present invention. For those skilled in the art, any obvious modifications made without departing from the principles and spirit of the present invention should be considered to be included within the scope of protection of the claims. Although the present invention has been described above with reference to embodiments, various modifications can be made and components can be replaced with equivalents without departing from the scope of the present invention. In particular, as long as there is no technical conflict, the features in the embodiments disclosed in the present invention can be combined with each other in any way. The lack of an exhaustive description of these combinations in this specification is merely for the sake of brevity and resource conservation. Therefore, the present invention is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. An integrated energy utilization device suitable for oilfield construction, characterized in that, It includes a photovoltaic solar thermal module, a micro-wind direct heating module, a photovoltaic grid electric auxiliary heating module, and a multi-energy coupling phase change control module. The multi-energy coupling phase change control module controls the air source unit heat pump heat storage module and provides a heat source to the separation buffer module. The collected oil is buffered, separated, and heated by the separation buffer module before entering the external output module for pressurization and external output.

2. The integrated energy utilization device for oilfield construction according to claim 1, characterized in that, The multi-energy coupled phase change control module integrates a photovoltaic solar thermal module, a micro-wind direct heating module, and a photovoltaic grid electric auxiliary heating module, and coordinates and controls these three modules. It prioritizes the optimal energy ratio based on the surrounding environment and future weather forecasts. It employs a dynamic phase change thermal energy storage method to store excess heat energy from wind and photovoltaic power. When wind and solar heat are insufficient, the photovoltaic grid electric auxiliary heating module supplies heat to the air source unit's heat pump thermal storage module. It monitors and coordinates the operating conditions of the air source unit's heat pump network source-load-storage link. It incorporates signal acquisition and conversion, weather tracking data decision-making, control matching, and regulation, and performs multi-energy regulation for high and low temperature requirements.

3. The integrated energy utilization device for oilfield construction according to claim 1, characterized in that, The photovoltaic solar thermal module uses a high-efficiency convective solar thermal hot air system for direct heating. The generated heat energy is calculated, allocated, and coupled by a multi-energy coupled phase change heat storage module and then supplied to the air source unit heat pump heat storage module. When the heat energy exceeds the energy demand of the air source unit heat pump, it is supplied to the air source unit heat pump heat storage module.

4. The integrated energy utilization device for oilfield construction according to claim 1, characterized in that, The micro-wind direct heating module uses a small fan to directly generate heat. The heat energy generated is calculated, allocated, and coupled with the multi-energy coupled phase change heat storage module and then supplied to the air source unit heat pump in the air source unit heat pump heat storage module for direct use. When the energy demand of the air source unit heat pump is exceeded, the heat energy is supplied to the air source unit heat pump for heat storage.

5. The integrated energy utilization device for oilfield construction according to claim 1, characterized in that, The photovoltaic grid-assisted heating module adopts a source-grid-load-storage energy storage method. When wind heat or photovoltaic solar thermal energy is insufficient or green electricity or off-peak electricity is excessive, the photovoltaic grid-assisted heating module converts electrical energy into heat energy, and stores this heat energy in a dynamic phase change hot water storage tank. It integrates signal acquisition and conversion, power matching and control, and high and low temperature multi-energy control.

6. The integrated energy utilization device for oilfield construction according to claim 1, characterized in that, The air source heat pump heat storage module consists of a multi-stage cascaded air source heat pump and a dynamic phase change heat storage tank. It uses air as a low-temperature heat source and is driven by a small amount of high-grade electricity. The heating medium enters the heating coil at the bottom of the separation buffer module and is integrated with signal acquisition, mobile APP and PC remote control.

7. The integrated energy utilization device for oilfield construction according to claim 1, characterized in that, The separation buffer module is a horizontally structured separation buffer tank supported by a saddle, which completes the buffering of the medium and the gas-liquid two-phase separation of the medium. It has a pre-separator at the inlet, a separation box inside, a wire mesh demister at the gas outlet, and a heating coil at the bottom. The medium in the coil is hot water, and there is a baffle in the middle. After being heated to the required temperature for external output, it enters the external output module.

8. The integrated energy utilization device for oilfield construction according to claim 1, characterized in that, The aforementioned external delivery module: After the incoming fluid from the well site is separated and heated by the separation buffer module, the separated fluid enters the external delivery pump in the external delivery module through the control valve for pressurization and external delivery. The liquid level and temperature of the external delivery pump and the separation buffer module are interlocked. The pump starts when the inlet temperature requirement of the external delivery pump is met and does not exceed the highest liquid level in the tank, and stops when the inlet temperature requirement of the external delivery pump is not met or the liquid level is low. The module incorporates a signal acquisition temperature, pressure, and flow matching and control unit, which performs frequency conversion control according to the liquid volume.

9. The integrated energy utilization device for oilfield construction according to claim 1, characterized in that, The aforementioned external pump is a screw pump.

10. The integrated energy utilization device for oilfield construction according to claim 9, characterized in that, The aforementioned external pump has a filter installed at the inlet and a safety valve installed at the outlet.

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