CN212929946U - Oil field steam injection boiler gas partial replacement system - Google Patents
Oil field steam injection boiler gas partial replacement system Download PDFInfo
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- CN212929946U CN212929946U CN202020831131.5U CN202020831131U CN212929946U CN 212929946 U CN212929946 U CN 212929946U CN 202020831131 U CN202020831131 U CN 202020831131U CN 212929946 U CN212929946 U CN 212929946U
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Abstract
The utility model provides an oil field steam injection boiler gas part substitution system, include: the water outlet of the water storage tank is connected with the water inlet of the electric boiler device through a circulating pump, the steam outlet of the electric boiler device is connected with the inlet of the electric heater, the outlet of the electric heater is connected with the high-temperature side inlet of the heat exchanger, and the high-temperature side outlet of the heat exchanger is connected with the water inlet of the water storage tank; the low-temperature side inlet of the heat exchanger is connected with the outlet of the low-temperature water pipeline, the low-temperature side outlet of the heat exchanger is connected with the low-temperature side inlet of the water-water heat exchanger, the low-temperature side outlet of the water-water heat exchanger is connected with the inlet of the convection section of the steam injection boiler, and the outlet of the convection section of the steam injection boiler is connected with the high-temperature side inlet of the water-water heat exchanger. The utility model has the advantages as follows: the water entering the steam injection boiler is preheated by using electric energy, so that the consumption of electric energy such as abandoned wind power, off-peak power and the like is improved, and the total consumption of fuel gas is reduced.
Description
Technical Field
The utility model relates to an oil field exploitation energy equipment technical field especially indicates an oil field steam injection boiler gas part substitution system.
Background
In the process of exploiting thick oil in an oil field, a steam injection boiler is high energy consumption equipment, natural gas is used as a main fuel, the fuel consumption is high in the operation process, and the fuel consumption is greatly increased along with the fact that a thick oil enterprise has higher and higher dependence on thermal recovery. At present, natural gas is mostly adopted in oil fields to gradually replace coal and petroleum as industrial energy, the emission of smoke is effectively reduced, but with the rising of the price of the natural gas, the fuel cost reaches about 60 percent of the total production cost. Therefore, the exploitation of the super heavy oil by taking natural gas as fuel obviously increases the economic pressure and cost.
At present, the installed capacity of domestic wind power is continuously increased, how to couple and cooperate the energy system of the oil field steam injection boiler with electric energy, reduce the consumption of fossil fuels such as oil field natural gas, improve and abandon the consumption of wind power, become the problem that oil field and electric power industry need a urgent need to solve.
SUMMERY OF THE UTILITY MODEL
The utility model provides an oil field steam injection boiler gas part substitution system has solved the big problem of fossil energy consumption among the prior art.
The technical scheme of the utility model is realized like this:
an oil field steam injection boiler gas partial replacement system comprising: the water-heating system comprises an electric boiler device, an electric heater, a heat exchanger, a water storage tank and a water-water heat exchanger, wherein a water outlet of the water storage tank is connected with a water inlet of the electric boiler device through a circulating pump, a water vapor outlet of the electric boiler device is connected with an inlet of the electric heater, an outlet of the electric heater is connected with a high-temperature side inlet of the heat exchanger, and a high-temperature side outlet of the heat exchanger is connected with a water inlet of the water storage tank; the low-temperature side inlet of the heat exchanger is connected with the outlet of the low-temperature water pipeline, the low-temperature side outlet of the heat exchanger is connected with the low-temperature side inlet of the water-water heat exchanger, the low-temperature side outlet of the water-water heat exchanger is connected with the inlet of the convection section of the steam injection boiler, the outlet of the convection section of the steam injection boiler is connected with the high-temperature side inlet of the water-water heat exchanger, and the high-temperature side outlet of the water-water heat exchanger is connected with the radiation section of the steam injection boiler.
Preferably, the electric boiler device is any one of an electrode boiler, a resistance-type boiler and an electromagnetic induction boiler; the energy input end of the electric boiler device is connected with an electric energy pipeline.
The utility model discloses an realize the principle as follows:
water in the water storage tank is continuously circulated and input into the electric boiler device under the action of the circulating pump, electric energy such as valley electricity, abandoned wind power and the like is input into the electric boiler device through an electric energy pipeline, water in the electric boiler device is heated by utilizing the electric energy to form water vapor with certain pressure and temperature, the water vapor enters the electric heater to be continuously heated to form saturated water vapor, and the saturated water vapor enters the high-temperature side of the heat exchanger.
The low-temperature water entering from the low-temperature water pipeline firstly enters the low-temperature side of the heat exchanger, the low-temperature water at the low-temperature side and saturated steam at the high-temperature side carry out heat exchange in the heat exchanger, the low-temperature water enters the convection section of the steam injection boiler through the low-temperature side of the water-water heat exchanger after being raised to a certain temperature, and the water coming out of the convection section of the steam injection boiler enters the radiation section of the steam injection boiler through the high-temperature side of the water-water heat exchanger.
Meanwhile, saturated water vapor in the high-temperature side of the heat exchanger is condensed and flows back to the water storage tank, and is continuously input into the electric boiler device through the circulating pump to participate in circulating heating.
The utility model has the advantages that:
the water entering the steam injection boiler is preheated by utilizing the electric energy, so that the consumption of the electric energy such as abandoned wind power, off-peak power and the like can be improved, the total consumption of fuel gas is reduced, fossil energy is saved, secondary pollution is avoided, and reasonable exploitation and utilization of oil gas resources are realized. Therefore, partial replacement of conventional fuel gas adopted by the oil field steam injection boiler by electric energy such as valley electricity, abandoned wind electricity and the like is finally realized.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is the principle structure diagram of the gas partial replacement system of the oil field steam injection boiler of the utility model.
In the figure:
1. electric boiler device, 2, electric heater, 3, heat exchanger, 4, water storage tank, 5, circulating pump, 6, water-water heat exchanger, 7, steam injection boiler convection section, 8, first valve, 9, second valve, 10, third valve, 11, fourth valve, 12, fifth valve, 13, low temperature water pipeline, 14, electric energy pipeline.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
As can be seen from the embodiment shown in FIG. 1, the utility model discloses an oil field steam injection boiler gas part replacement system, include: the electric boiler device comprises an electric boiler device 1, an electric heater 2, a heat exchanger 3, a water storage tank 4 and a water-water heat exchanger 6, wherein a water outlet of the water storage tank 4 is connected with a water inlet of the electric boiler device 1 through a circulating pump 5, a water vapor outlet of the electric boiler device 1 is connected with an inlet of the electric heater 2, an outlet of the electric heater 2 is connected with a high-temperature side inlet of the heat exchanger 3, and a high-temperature side outlet of the heat exchanger 3 is connected with a water inlet of the water storage tank 4; the low-temperature side inlet of the heat exchanger 3 is connected with the outlet of the low-temperature water pipeline 13, the low-temperature side outlet of the heat exchanger 3 is connected with the low-temperature side inlet of the water-water heat exchanger 6, the low-temperature side outlet of the water-water heat exchanger 6 is connected with the inlet of the steam-injection boiler convection section 7, the outlet of the steam-injection boiler convection section 7 is connected with the high-temperature side inlet of the water-water heat exchanger 6, and the high-temperature side outlet of the water-water heat exchanger 6 is connected with the radiation section of the steam-injection boiler.
The electric boiler device 1 is any one of an electrode boiler, a resistance type boiler and an electromagnetic induction boiler; the energy input end of the electric boiler device 1 is connected with an electric energy pipeline 14.
The low-temperature water pipeline 13 is divided into two pipelines before entering the heat exchanger 3, wherein the pipeline A is connected with a low-temperature side inlet of the heat exchanger 3, the pipeline B is connected with a low-temperature side outlet pipeline of the water-water heat exchanger 6, and a first valve 8 is arranged between the intersection point of the two pipelines and the inlet of the heat exchanger 3; a pipeline C is arranged between the low-temperature side outlet of the heat exchanger 3 and the low-temperature side inlet of the water-water heat exchanger 6, a bypass pipeline D is arranged between the pipeline C and the pipeline B, a second valve 9 is arranged on the pipeline D, a third valve 10 is arranged between the intersection of the pipeline C and the pipeline D and the water-water heat exchanger 6, and a fourth valve 11 and a fifth valve 12 are respectively arranged in front of and behind the intersection of the pipeline B and the pipeline D.
The electric boiler apparatus 1 is a device for converting electric energy into heat energy, and heats low-temperature water in the boiler into steam and outputs the steam to the outside.
The electric heater 2 may be any one of electromagnetic heating, infrared heating, and resistance heating, and continuously heats the steam generated from the electric boiler 1 to ensure a certain saturation of the steam.
The heat exchanger 3 is a pressure vessel, and may be a dividing wall type heat exchanger structure, specifically, any one of a floating head type heat exchanger, a fixed tube-plate type heat exchanger, a U-shaped tube-type heat exchanger, and a plate type heat exchanger. The steam-water heater is used for exchanging heat between saturated steam generated by the electric heater 2 and low-temperature water entering the convection section 7 of the steam-injection boiler, so that the low-temperature water is heated to a certain temperature and then enters the convection section of the steam-injection boiler for continuous heating.
The water storage tank 4 is a normal pressure container with a certain volume, can adopt a vertical or horizontal structure, and is used for storing condensed water generated after the heat exchange of water vapor.
The circulating pump 5 is used for injecting water in the water storage tank 4 into the electric boiler device 1 for circulating heating; the water-water heat exchanger 6 is a preheating system in the original steam-injection boiler system and mainly aims to heat cold water entering the convection section 7 of the steam-injection boiler to a certain temperature (over 120 ℃) so as to prevent low-temperature dew point corrosion.
The valves 8-12 are regulating valves for regulating medium flow, and are preferably stop valves or gate valves, and the opening mode of the valves is manual or electric.
The realization principle of the oil field steam injection boiler gas partial replacement system is as follows:
water in the water storage tank 4 is continuously circulated and input into the electric boiler device 1 under the action of the circulating pump 5, electric energy such as valley electricity and abandoned wind electricity is input into the electric boiler device 1 through the electric energy pipeline 14, water in the electric boiler device 1 is heated by the electric energy to form water vapor with certain pressure and temperature, the water vapor enters the electric heater 2 and is continuously heated to form saturated water vapor, and the saturated water vapor enters the high-temperature side of the heat exchanger 3.
The low-temperature water entering from the low-temperature water pipeline 13 firstly enters the low-temperature side of the heat exchanger 3, the low-temperature water at the low-temperature side exchanges heat with saturated steam at the high-temperature side in the heat exchanger 3, the low-temperature water enters the steam injection boiler convection section 7 through the low-temperature side of the water-water heat exchanger 6 after being raised to a certain temperature, and the water coming out of the steam injection boiler convection section 7 enters the steam injection boiler radiation section through the high-temperature side of the water-water heat exchanger 6.
Meanwhile, the saturated water vapor in the high temperature side of the heat exchanger 3 is condensed and flows back to the water storage tank 4, and is continuously input into the electric boiler device 1 through the circulating pump 5 to participate in the circulating heating.
To sum up, the utility model discloses an utilize the electric energy to preheat the water that gets into steam injection boiler, can improve and reduce the gas total consumption to abandoning electric energy such as wind-powered electricity generation, low ebb electricity, saved the fossil energy, avoided secondary pollution, realized the rational exploitation utilization of oil gas resource. Therefore, partial replacement of conventional fuel gas adopted by the oil field steam injection boiler by electric energy such as valley electricity, abandoned wind electricity and the like is finally realized.
The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (2)
1. An oil field steam injection boiler gas partial replacement system, comprising: the water-saving system comprises an electric boiler device (1), an electric heater (2), a heat exchanger (3), a water storage tank (4) and a water-water heat exchanger (6), wherein a water outlet of the water storage tank (4) is connected with a water inlet of the electric boiler device (1) through a circulating pump (5), a water vapor outlet of the electric boiler device (1) is connected with an inlet of the electric heater (2), an outlet of the electric heater (2) is connected with a high-temperature side inlet of the heat exchanger (3), and a high-temperature side outlet of the heat exchanger (3) is connected with a water inlet of the water storage tank (4); the low-temperature side inlet of the heat exchanger (3) is connected with the outlet of a low-temperature water pipeline (13), the low-temperature side outlet of the heat exchanger (3) is connected with the low-temperature side inlet of the water-water heat exchanger (6), the low-temperature side outlet of the water-water heat exchanger (6) is connected with the inlet of a convection section (7) of the steam injection boiler, the outlet of the convection section (7) of the steam injection boiler is connected with the high-temperature side inlet of the water-water heat exchanger (6), and the high-temperature side outlet of the water-water heat exchanger (6) is connected with the radiation section of the steam injection boiler.
2. The system for partially replacing the gas in the steam injection boiler of the oil field according to the claim 1 is characterized in that the electric boiler device (1) is any one of an electrode boiler, a resistance boiler and an electromagnetic induction boiler; the energy input end of the electric boiler device (1) is connected with an electric energy pipeline (14).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020831131.5U CN212929946U (en) | 2020-05-18 | 2020-05-18 | Oil field steam injection boiler gas partial replacement system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020831131.5U CN212929946U (en) | 2020-05-18 | 2020-05-18 | Oil field steam injection boiler gas partial replacement system |
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| Publication Number | Publication Date |
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| CN212929946U true CN212929946U (en) | 2021-04-09 |
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| CN202020831131.5U Active CN212929946U (en) | 2020-05-18 | 2020-05-18 | Oil field steam injection boiler gas partial replacement system |
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| CN (1) | CN212929946U (en) |
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- 2020-05-18 CN CN202020831131.5U patent/CN212929946U/en active Active
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