Oil Field Oil Tank Graphene Heater

Abstract

Provide graphene heaters for oil field oil tanks. [Solution] A graphene heater for oil tanks in oil fields, in which the heater's heating layer is a graphene layer (2), a high-temperature resistant insulating layer (1), an intermediate layer consisting of the graphene layer (2) and an electrode layer (3), and the high-temperature resistant insulating layer (1) are tightly bonded together in sequence, and then bonded to the inner wall of a housing (5); the housing (5) is cylindrical, and one end of the housing (5) assembled inside the oil tank is closed, and the other end of the housing is fixed to the surface of the oil tank with a flange (4), and the flange (4) part of the housing (5) is connected to a junction box (8); when electricity is applied to the electrode layers (3) on both ends of the graphene layer (2), the graphene, under the action of an electric field, generates thermal energy due to intense friction and collision between carbon atoms, which is radiated via far infrared rays with a wavelength of 5 to 14 micrometers, effectively providing heat and helping to heat and keep the oil tank warm and prevent freezing in the oil field.

Description

[Technical field]

[0001] The present invention relates to an oil field oil tank heating device, and more particularly to an oil field oil tank graphene heater which saves energy consumption, is convenient to assemble and disassemble, and can effectively heat the oil field oil tank to prevent the crude oil in the oil tank from freezing and solidifying. [Background technology]

[0002] At present, the known method for preventing freezing and solidification of oil field oil tanks is to use an insertion type electric rod heater to heat the crude oil in the oil field oil tanks. The insertion type electric rod heater is assembled into the oil tank cavity using an electric heating alloy as the heating element. The insertion type electric rod heater uses the resistance heating principle for heating, so the heating efficiency is low, resulting in high energy consumption and waste, and thus high production costs.

[0003] After examining related materials at home and abroad, it was found that all the relevant heating equipment and technologies for preventing freezing and solidification of oil field oil tanks were found. Heating is done using the resistance heating principle, such as the large-scale use of insertion-type electric rod heater equipment, and the energy waste is astonishing. There are also methods of heating by using fossil fuel combustion to provide thermal energy, such as steam heat exchangers and hot water heat exchangers, but due to their complicated schemes and low heating efficiency, they are rarely used at present. Summary of the Invention [Problem to be solved by the invention]

[0004] In order to overcome the shortcomings of the insertion type heating equipment based on the resistive heating principle, such as low heating efficiency and serious energy waste, when solving the freezing and solidification of oil tanks in oil fields, the present invention provides a graphene heater for oil tanks in oil fields that uses graphene as a heat source, and utilizes the principle that graphene generates far-infrared radiation under the action of an electric field to solve the freezing and solidification problems of oil tanks in oil fields. [Means for solving the problem]

[0005] The technical solution of the present invention provides an oilfield oil tank graphene heater, which includes a flange, a housing, a high-temperature-resistant insulating layer, a heating layer and an electrode layer, and a high-temperature-resistant conductive wire. One end of the cylindrical housing is sealed, the other end of the housing is fixed to the surface of the oil tank by a flange, and the flange part of the housing is connected to a junction box. The high-temperature-resistant insulating layer, the graphene layer, the electrode layer, and the high-temperature-resistant conductive wire are all assembled in the housing. The high-temperature-resistant insulating layer, the graphene layer, the electrode layer, and the high-temperature-resistant insulating layer are sequentially laminated and then laminated to the inner wall of the housing. One side of the high-temperature-resistant insulating sheet, which has the same cross-sectional shape as the inner cavity of the housing, is tightly attached to the inner surface of the closed end of the housing, and the entire inner surface of the closed end of the housing is covered; The plane perpendicular to the axis of the housing of the perforated high-temperature-resistant insulating sheet and the high-temperature-resistant insulating sheet are respectively adhered to the parts composed of a high-temperature-resistant insulating layer, a graphene layer, an electrode layer and a high-temperature-resistant insulating layer laminated in sequence at both ends, and are perpendicular to the end faces of the axis of the housing to form effective insulation. When the electrode layers at both ends of the graphene layer are electrified, the graphene under the action of an electric field uniformly radiates the thermal energy caused by the violent friction and collision between carbon atoms to the plane through far infrared rays with a wavelength of 5 to 14 micrometers, which can provide thermal energy in a balanced manner. The temperature can be controlled by a temperature controller, and the effective electrical thermal energy conversion efficiency reaches more than 99%, effectively solving the needs of heating and insulation of oil tanks in oil fields and achieving the effect of saving energy consumption. Effect of the Invention

[0006] The disclosed invention adopts the heating principle that graphene generates far-infrared radiation under the action of an electric field and the assembly method of inserting an oil tank, which effectively solves the heating and insulation needs of oil tanks in oil fields, and has the advantages of saving energy consumption, convenient assembly and disassembly, and low maintenance costs. [Brief description of the drawings]

[0007] FIG. 1 is a perspective view of an embodiment of the present invention, in which the fasteners and seal washers of the fixing flange are omitted. FIG. 2 is a schematic diagram of the relative position of the graphene heater material constituting the oil field oil tank in an embodiment of the present invention and the housing seal end, in which the fastener of the fixing flange and the temperature-sensing probe connection wire and high-temperature resistant conductor drawn out from the wiring pull-out hole are omitted. FIG. 3 is a schematic diagram of a wiring outlet hole on a junction box in an embodiment of the present invention. FIG. 4 is a schematic diagram of the assembled state and operating principle of an oil field oil tank graphene heater in an oil tank in an embodiment of the present invention, in which other structures of the oil tank, crude oil in the oil tank, and fasteners for assembling the oil field oil tank graphene heater flange are omitted. In the figure, 1. high-temperature resistant insulating layer, 2. graphene layer, 3. electrode layer, 4. flange, 5. housing, 6. high-temperature resistant conductor, 7. temperature sensing probe, 8. junction box, 9. wiring outlet hole, 10. packing washer, 11. high-temperature resistant insulating sheet, 12. high-temperature resistant insulating sheet with hole, 13. oil tank, 14. stand, 15. electric wire, 16. temperature sensing probe connection line, 17. explosion-proof wiring box, 18. explosion-proof temperature controller, 19. power supply, 20. oil field oil tank graphene heater. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0008] The present invention will now be described in detail with reference to the drawings and examples of the specification.

[0009] Working Example

[0010] As shown in FIG. 1, the housing (5) of the oil field oil tank graphene heater of this embodiment is cylindrical, and the flange (4) of the housing (5) is partially connected to the junction box (8).

[0011] As shown in FIG. 2, the housing (5) of the oil field oil tank graphene heater has one end inserted into the oil tank (13) closed, and the other end of the housing (5) is a flange (4) for fixing the oil field oil tank graphene heater to the surface of the oil tank (13). The flange (4) is connected to a junction box (8). The high-temperature resistant insulating layer (1), the graphene layer (2) and the electrode layer (3), and the high-temperature resistant insulating layer (1) of the oil field oil tank graphene heater are laminated in order to be laminated to the inner wall of the housing (5); one side of the high-temperature resistant insulating sheet (11) having the same cross-sectional shape as the inner cavity of the housing (5) is in close contact with the inner surface of the one end to be closed of the housing (5) and covers the entire inner surface of the one end to be closed of the housing (5); the high-temperature resistant insulating sheet (12) with the same cross-sectional shape as the inner cavity of the housing (5) and the high-temperature resistant insulating sheet (11) with the same hole cross-sectional shape as the inner cavity of the housing (5) are laminated to the inner wall of the housing (5). ) The plane perpendicular to the axis of the housing (5) of the graphene heater is in close contact with the part where the high-temperature resistant insulating layer (1), the graphene layer (2) and the electrode layer (3), and the high-temperature resistant insulating layer (1) are laminated together at both ends, perpendicular to the end surface of the axis of the housing (5), and forms effective insulation separation; the temperature probe connection wire (16) connecting the temperature probe (7) and the high-temperature resistant conductor wires (6) connecting the electrode layers (3) at both ends of the graphene layer (2) are pulled into the junction box (8) and pulled out from the three wiring pull-out holes (9) of the junction box (8) (the temperature probe connection wire (16) and the high-temperature resistant conductor wire (6) pulled out from the wiring pull-out holes are omitted in the figure); the packing washer (10) prevents crude oil from leaking from the oil tank when the flange fastener of the graphene heater of the oil field oil tank is assembled and fixed to the surface of the oil tank.

[0012] As shown in FIG. 3, there are three wiring outlet holes (9) on the junction box (8).

[0013] As shown in FIG. 4, the oil field oil tank graphene heater (20) is assembled to the holder (14) at the bottom of the cavity of the oil tank (13), one end of the oil field oil tank graphene heater (20) is fixed to the surface of the oil tank (13) by a flange (4) and a fastener, the temperature probe connection wire (16) drawn from the temperature probe (7) is connected to an explosion-proof temperature controller (18); the high-temperature resistant wires (6) drawn from the electrode layers (3) on both ends of the graphene layer (2) are respectively connected to explosion-proof wiring devices (17), the electric wires (15) drawn from the explosion-proof wiring device (17) are connected to the explosion-proof temperature controller (18), and the electric wires (15) drawn from the explosion-proof temperature controller (18) are connected to an electric source (19).

[0014] When the electrode layers (3) on both ends of the graphene layer (2) are connected to a power source (19), the graphene layer (2) under the action of an electric field uniformly radiates continuous thermal energy due to intense friction and collision between carbon atoms through far infrared rays with a wavelength of 5 to 14 micrometers on a flat surface, directly transmitting heat to the inner surface of the graphene heater housing (5) of the oilfield oil tank, so as to continuously increase the temperature of the graphene heater housing (5) from the inside to the outside. The temperature-sensing probe (7) continuously transmits the temperature of the inner surface of the high-temperature-resistant insulating layer (1) of the graphene heater housing of the oilfield oil tank to the explosion-proof temperature controller (18) through the temperature-sensing probe connection line (16), and when the temperature of the inner surface of the high-temperature-resistant insulating layer (1) of the graphene heater housing of the oilfield oil tank reaches a temperature preset in the explosion-proof temperature controller (18), the explosion-proof temperature controller (18) automatically cuts off the circuit of the connecting electrode layer (3). At this time, the graphene layer (2) stops emitting far-infrared rays, the temperature of the outer surface of the housing (5) of the oilfield oil tank graphene heater begins to decrease, and the explosion-proof temperature controller (18) detects through the temperature sensor 7 that the temperature of the inner surface of the high-temperature resistant insulating layer 1 of the oilfield oil tank graphene heater is lower than the temperature preset in the explosion-proof temperature controller 18, the explosion-proof temperature controller 18 automatically turns on the circuit connecting the electrode layer 3, and the graphene layer (2) begins to radiate far-infrared rays again under the electric field to heat the housing (5) of the oilfield oil tank graphene heater. The above process is repeated and works continuously, effectively solving the needs of heating and insulation of the oilfield oil tank and achieving the effect of saving energy consumption.

Claims

1. A graphene heater for an oil field oil tank, comprising a flange, a housing, a first high-temperature resistant insulating layer, a second high-temperature resistant insulating layer, a heating layer and an electrode layer, and a high-temperature resistant conductor, wherein the heating layer is a graphene layer; The first high-temperature resistant insulating layer, the graphene layer, the electrode layer, and the second high-temperature resistant insulating layer are sequentially laminated together, and then laminated to the inner wall of the housing; The housing is columnar, one end of the housing is closed, and the other end of the housing is fixed to the surface of the oil tank by a flange, and a junction box is connected to the flange portion of the housing; A cylindrical portion at one end of the junction box is inserted into the housing, and the outer diameter cross section of the cylindrical portion of the junction box inserted into the housing has the same shape as the inner cavity cross section of the housing; a temperature probe for detecting a temperature of an inner surface of the first high-temperature resistant insulating layer or the second high-temperature resistant insulating layer; The junction box has three wiring holes. An oil field oil tank graphene heater, characterized in that a temperature-sensing probe connection wire for connecting a temperature-sensing probe and two high-temperature resistant conductors for respectively connecting the electrode layers at both ends of the graphene layer are pulled out from three wiring pull-out holes of the junction box.

2. An oil field oil tank graphene heater as described in claim 1, characterized in that one side of the high-temperature-resistant insulating sheet having the same cross-sectional shape as the housing cavity is in close contact with the inner surface of the closed end of the housing and covers the entire inner surface of the closed end of the housing, and the perforated high-temperature-resistant insulating sheet having the same cross-sectional shape as the housing cavity and the surface perpendicular to the axis of the housing are in close contact with a portion at both ends formed by sequentially bonding a high-temperature-resistant insulating layer, a graphene layer and an electrode layer, and a high-temperature-resistant insulating layer, and are perpendicular to the end face of the axis of the housing.

3. An oil field oil tank graphene heater, comprising a columnar housing, a laminated structure, a high temperature resistant insulating sheet, a high temperature resistant insulating sheet with holes and a junction box, One end of the housing is closed and used for inserting an oil tank, and the other end of the housing is provided with a flange and used for fixing to the surface of the oil tank; The laminated structure is laminated to the inner wall of the housing, and includes a first high-temperature-resistant insulating layer, an intermediate layer including a graphene layer and electrode layers located at both ends of the graphene layer, and a second high-temperature-resistant insulating layer, which are laminated and connected in sequence to each other, and the electrode layers are connected to high-temperature-resistant conductive wires; The high-temperature resistant insulating sheet has the same cross-sectional shape as the inner cavity of the housing, and is tightly attached to and covers the entire inner surface of the one end of the housing that is to be closed; the perforated high temperature resistant insulating sheet has a cross-sectional shape identical to the inner cavity of the housing; The junction box is connected to a flange, Here, the high-temperature resistant insulating sheet with holes and the high-temperature resistant insulating sheet are closely attached to end faces of the laminated structure that are perpendicular to the axis of the two housings, The heat exchanger further includes a temperature probe for detecting a temperature of an inner surface of the first high-temperature resistant insulating layer or the second high-temperature resistant insulating layer, the temperature probe being connected to a temperature probe connection line; One end of the junction box is a cylindrical portion, the cylindrical portion is inserted into the housing, and the outer diameter cross section of the cylindrical portion has the same shape as the inner cavity cross section of the housing; The junction box has three wiring holes. An oil field oil tank graphene heater, characterized in that a temperature-sensing probe connection wire for connecting a temperature-sensing probe and two high-temperature resistant conductors for respectively connecting the electrode layers at both ends of the graphene layer are pulled out from three wiring pull-out holes of the junction box.

4. 4. The graphene heater of claim 3, further comprising an explosion-proof temperature controller, an explosion-proof wiring box and a power source, wherein the temperature sensing probe connection line is connected to the explosion-proof temperature controller, the high temperature resistant wire is connected to the explosion-proof wiring box, the electric wire drawn from the explosion-proof wiring box is connected to the explosion-proof temperature controller, and the electric wire drawn from the explosion-proof temperature controller is connected to the power source.

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