CN100532915C - Wind, solar energy and electricity integrated heating device and heating method for crude oil gathering and transportation - Google Patents

Abstract

The invention provides a wind-solar-electric integrated heating device and heating method for crude oil collection and transportation. The heating device includes a water/oil heat exchange device and an electric heating device. The water/oil heat exchange device is equipped with solar heat collection equipment. The electric heating device is equipped with wind power generation equipment; the heating method includes a solar heating process, an electric heating process and a judgment and selection process. The invention utilizes the natural complementarity of wind power and solar energy to form a wind-solar complementary heating system, which can well solve the problem of unstable operation of wind power and solar energy, completely replace natural gas water jacket furnace heating equipment in crude oil gathering and transportation, and is suitable for popularization and use.

Description

A wind-solar-electric integrated heating device and heating method for crude oil collection and transportation

technical field

The invention relates to a heating device and a heating method for crude oil collection and transportation, in particular to a device and method for heating crude oil transmission by using solar energy and wind power to generate electricity, and belongs to the technical field of new energy development and utilization and crude oil transmission.

Background technique

At present, the oil field industry needs to consume a lot of energy in the process of oil production, gathering and transportation. my country's crude oil generally has a high freezing point, high viscosity, and poor fluidity at room temperature. Therefore, heating and heat preservation must be carried out during transportation after the oil is released from the oil well. At least 20% of the energy consumption in the process of oil production, gathering and transportation in the oil field is used for heating and processing of crude oil. The traditional technology of heating crude oil during the transmission process usually uses coal, fuel oil, natural gas, and electric heating. method, which not only causes a large amount of energy consumption and serious environmental pollution problems, but also has a lot of potential safety hazards.

The energy crisis and environmental pollution have become the hotspots that the society generally pays attention to. The increasingly urgent energy situation has put forward urgent requirements for the development of new energy technologies and the further development and utilization of renewable energy. One effective measure that can be taken in reducing energy consumption in oilfield production is the use of alternative energy sources or waste heat. If the crude oil can be heated with the heat of the solar energy, a large amount of energy consumption can be saved for the oil field.

At the same time, because solar energy is greatly affected by the weather, solar heating cannot be started on cloudy days or at night. Although the above-mentioned shortcomings can be overcome by heat conversion equipment, it is time-consuming and wasteful, and it cannot completely solve the problem of energy shortage. In most oil fields, the wind power is relatively objective, so wind power can be used to heat crude oil gathering and transportation. Therefore, it is urgent to develop a crude oil gathering and transportation heating technology that integrates solar and wind power generation.

Contents of the invention

The object of the present invention is to overcome the deficiencies of the prior art and provide a wind-solar-electric integrated heating device for crude oil collection and transportation that integrates solar energy and wind power generation.

Another object of the present invention is to provide a wind-solar-electric-integrated heating method for crude oil collection and transportation based on the wind-electric-electric integrated heating device.

In order to realize the purpose of the invention one, the technical solution adopted in the present invention is:

A wind-solar-electric integrated heating device for crude oil collection and transportation, including a water/oil heat exchange device and an electric heating device, the water/oil heat exchange device is provided with solar heat collection equipment, and the electric heating device is provided with wind power generation equipment .

In the above technical solution, the water/oil heat exchange device includes a solar heat collector, a water pump, a water storage tank and a heat exchanger, the water outlet of the water storage tank is connected to the inlet of the solar heat collector through a water pump, and the solar collector The outlet of the heat exchanger is connected with the water inlet of the heat exchanger, the water outlet of the heat exchanger is connected with the water inlet of the water storage tank, and the heat exchanger is also provided with an oil inlet and an oil outlet connected with the oil pipeline.

The water outlet of the water storage tank can also be connected with the water inlet of the heat exchanger, and the water inlet of the water storage tank can also be connected with the outlet of the solar heat collector.

The electric heating device of the present invention includes a wind generator and an electric furnace, the wind generator is connected with the electric furnace to provide heat for the electric furnace, and the electric furnace is provided with an oil inlet and an oil outlet connected to the oil pipeline.

The oil inlet of the electric furnace is connected with the oil outlet of the heat exchanger.

The electric heating device of the present invention can also be provided with power conversion equipment, switching equipment and computer energy management system, and the power conversion equipment is connected with an external oil extraction machine.

The electric heating device is also provided with industrial power supply equipment or commercial power supply equipment.

In order to realize the purpose of the invention two, the technical scheme adopted in the present invention is:

A wind and electricity integrated heating method for crude oil gathering and transportation, including solar heating process, electric heating process and judgment selection process,

The solar heating process is as follows: the water in the water storage tank is pumped out into the solar heat collector for heating through the water pump, and the high-temperature water heated by the solar heat collector enters the heat exchanger, and at the same time, the low-temperature crude oil enters the heat exchanger through the oil pipeline , fully exchange heat with high-temperature water in the heat exchanger, the low-temperature water after heat exchange flows back to the heat storage tank from the heat exchanger, and the high-temperature crude oil flows out of the heat exchanger;

The electric heating process is as follows: the electric furnace is heated by the electricity generated by the wind power generator, the crude oil enters the electric furnace through the oil pipeline, and the crude oil is heated by the heat of the electric furnace;

The judgment and selection process is: when the solar energy can provide enough energy for crude oil gathering and transportation heating, start the solar heating process; when the solar energy can provide but not enough energy to complete the crude oil gathering and transportation, start the solar heating process and the electric heating process at the same time, At this time, the crude oil flows through the heat exchanger through the oil pipeline, and then flows into the electric furnace from the heat exchanger; when the solar energy cannot provide the energy for crude oil gathering and transportation heating, the electric heating process is started.

In the electric heating process described in the heating method of the present invention, wind power generators can be used to provide electricity, and industrial power supply equipment or commercial power equipment can also be used to provide electricity.

When the solar heating process is selected in the judgment and selection process, the wind generator can be started to generate electricity at the same time, and the electricity produced by the wind generator can be supplied to the external oil extraction machine through the power conversion equipment.

The invention successfully utilizes the natural complementarity of wind power and solar energy to form a wind and solar complementary heating system, which solves the problem of unstable operation of wind power and solar energy separately, and can completely replace natural gas water jacket furnace heating equipment in crude oil gathering and transportation.

Description of drawings

Fig. 1 is a structural schematic diagram of the present invention.

Detailed ways

The present invention will be further described below in conjunction with the accompanying drawings.

The structure of the present invention is as shown in accompanying drawing 1, comprises water/oil heat exchange device and electric heating device, and water/oil heat exchange device comprises solar heat collector 1, electromagnetic valve 2, water pump 3, water storage tank 4 and heat exchange 5, the water outlet of the water storage tank 4 is connected to the inlet of the solar collector 1 through the water pump 3 and the solenoid valve 2, and the outlet of the solar collector 1 is connected to the water inlet of the heat exchanger 5 through the solenoid valve 2, and the heat exchanger The water outlet of 5 is connected with the water inlet of the water storage tank 4, the heat exchanger 5 is connected with the oil pipeline through the oil inlet and the oil outlet, and the outlet of the solar heat collector 1 is also directly connected with the water inlet of the water storage tank 4; The electric heating device is composed of wind power generator 10, electric furnace 6, power conversion equipment 9, mains 7, switching equipment 12, computer energy management system 8, data acquisition system 11, etc. The electric furnace 6 is connected to the heat exchanger 5 .

In this embodiment, when the solar radiation intensity meets the conditions, the water pump 3 is started, and the circulating water in the water storage tank 4 is extracted, and then enters the array of the solar heat collector 1 for heating, and the high-temperature circulating water heated by the solar heat collector 1 enters again. The heat exchanger 5 fully exchanges heat with the crude oil, and the low-temperature circulating water after heat exchange flows back to the water storage tank 4 through the heat exchanger 5 to complete the solar heating cycle.

The crude oil first enters the heat exchanger 5, fully exchanges heat with the high-temperature circulating water heated by solar energy, and the heated crude oil flows out. The computer energy management system 8 judges whether the temperature of the crude oil meets the production requirements. If the temperature is not enough, the electric heating furnace 6 is automatically started for heating, so that the crude oil undergoes secondary heat exchange in the electric heating furnace 6 to realize constant temperature control until the temperature rise of the crude oil meets the production requirements and is exported.

In order to ensure the continuous and stable operation of the wind and light complementary heating device, wind power generation, solar heat collection and mains power are combined to ensure that the normal production of the oil production station can still be maintained under extremely harsh weather conditions. Among them, the solar heat collector is used as the first-level heating device, which makes full use of solar light and heat for heating. The electric heating device using wind power is used as the second-level heating organization to compensate for the insufficient heat supply of the solar heat collection system.

Under ideal natural conditions, solar collectors can perform most or even all of the heating tasks. At this time, the excess electric energy generated by wind power is transferred to the power conversion equipment for "rectification-inversion" through the switch, and will be used for Electric energy rectification for driving the pumping motor part—inversion into 380V power frequency electric energy to supply power to the pumping motor;

When the electric energy provided by the wind generator is needed to heat the crude oil, the switch 12 switches the electric energy to the electric furnace 6, and the electric energy directly output by the wind generator 10 can be directly used for heating the crude oil without rectification and inversion.

In order to ensure that the oil production station can still work reliably even in extremely harsh weather conditions, the electric heating part is connected in parallel with the mains 7 power supply system. When the solar thermal and wind power electric heating cannot meet the heating requirements, the electric heating is cut into the mains.

In this embodiment, the temperature collection, heat judgment, etc. are collected by the data collection system 11; the entire process control, logical condition judgment, data storage, etc. are completed by the computer energy management system 8.

Claims (2)

1, a kind of Wind, solar energy and electricity integrated heating equipment of crude oil transmission, it is characterized in that comprising water/oily heat-exchanger rig and Electric heating appliance, described water/oily heat-exchanger rig is provided with solar energy heat collection equipment, comprise solar thermal collector, water pump, water storage box and heat exchanger, the water outlet of described water storage box is connected with the solar thermal collector inlet by water pump, the outlet of solar thermal collector is connected with the water intake of heat exchanger, the water outlet of heat exchanger is connected with the water inlet of water storage box, heat exchanger also is provided with filler opening and the oil outlet that is connected with pipeline road, the water outlet of described water storage box also is connected with the water intake of heat exchanger, and the water inlet of water storage box also is connected with the outlet of solar thermal collector; Described Electric heating appliance is provided with wind power plant, comprise wind-driven generator and electrothermal furnace, described wind-driven generator is connected with electrothermal furnace and provides heating required electric power for electrothermal furnace, described electrothermal furnace is provided with filler opening and the oil outlet that is connected with pipeline road, the filler opening of described electrothermal furnace is connected with the oil outlet of heat exchanger, described Electric heating appliance also is provided with the electric power convertor equipment, diverter switch equipment and computer energy management system, described electric power convertor equipment is connected with outside oil pumping unit, and described Electric heating appliance also is provided with industrial power supply equipment or civil power equipment.

2, a kind of heating means that adopt the Wind, solar energy and electricity integrated heating equipment of the described crude oil transmission of claim 1 is characterized in that comprising solar energy heating process, electric heating process and judge selection course,

Described solar energy heating process is: by water pump the extraction of the water in the water storage box is entered solar thermal collector and heat, the high-temperature water that is heated by solar thermal collector enters heat exchanger again, low temperature crude oil enters heat exchanger by pipeline road simultaneously, in heat exchanger with the abundant heat exchange of high-temperature water, low temperature water after the heat exchange flows back to water storage box by heat exchanger, and high temperature crude oil is outflow heat exchanger then;

Described electric heating process is: the electricity that produces by wind-driven generator or adopt industrial power supply equipment or civil power equipment to provide electric weight that electrothermal furnace is heated, and crude oil enters electrothermal furnace by pipeline road, and the heat by electrothermal furnace heats crude oil,

Described judgement selection course is: when solar energy can provide enough energy of crude oil transmission heating, start the solar energy heating process; When solar energy can provide but be not enough to finish the energy of crude oil transmission, start solar energy heating process and electric heating process simultaneously, this moment crude oil through the pipeline road heat exchanger of flowing through earlier, flow into electrothermal furnace from heat exchanger again; When solar energy can't provide the energy of crude oil transmission heating, start the electric heating process; And when selecting the solar energy heating process, start wind turbine power generation simultaneously, and supply outside oil pumping unit with the electricity that wind-driven generator is produced by the electric power convertor equipment.

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