CN210725400U - Heating device - Google Patents

Abstract

The utility model discloses a heating device, including heating coil and many magnetrons, the crude oil import and the crude oil export correspondence at heating coil both ends insert oil pipe, so that heating coil with oil pipe is linked together, each the continuous interval of magnetron set up in heating coil, each the power end of magnetron is respectively through the power supply end electric connection of magnetron connecting wire with the controller. The utility model provides a well head oil return heating effect not good, the low technical problem of security among the oil return heating process.

Description

Heating device

Technical Field

The utility model relates to an oil recovery engineering technical field especially relates to a heating device.

Background

At the present stage, the crude oil physical properties of some oil fields in China are thick oil, extra thick oil or super thick oil, such as: the crude oil viscosity of partial oil well in Liaohe oil field is above 1500mpa.s, the highest (super heavy oil) can reach 20 ten thousand mpa.s, and the main component is asphalt. During exploitation, because the viscosity of crude oil at a wellhead is too high, the flow resistance of the crude oil in a pipeline is very large, and if a wellhead heating device is not adopted to heat return oil, the phenomenon of freezing and blocking of the pipeline is very easy to occur. Therefore, the crude oil in the oil field adopts the fire tube stove as well head heating equipment to heat the viscosity reduction at present, though simple structure, the fire tube stove has fire hazard safety hazard, and specific problem is as follows:

firstly, a fire tube furnace is heated by natural gas, while gas source wells in a heavy oil area are fewer, and at the present stage, well mouth self-produced gas is mainly adopted, so that the oil return heating effect of a well mouth is poor due to the low yield of the well mouth self-produced gas;

secondly, the natural gas produced by the well mouth is impure, most of the natural gas produced by the well mouth contains impurities such as hydrogen sulfide, and once the natural gas is insufficiently combusted or the fire tube furnace is extinguished, the fire tube furnace is easy to leak, so that the environment is polluted, and even serious consequences such as personnel poisoning are caused;

thirdly, the fire tube furnace does not have the temperature control function, and the temperature is too high when the fire tube furnace is heated due to the combustion fluctuation caused by the rising or lowering of the pressure in the wellhead casing, so that the coking of the fire tube furnace is caused, and the normal work of the fire tube furnace is influenced.

Aiming at the problems of poor oil return heating effect of a wellhead and low safety in the oil return heating process in the related technology, an effective solution is not provided at present.

Therefore, the utility model discloses the experience and the practice that the people went into relevant trade by virtue of many years provides a heating device to overcome prior art's defect.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a heating device heats the well head oil return through the microwave that the magnetron sent, avoids the potential safety hazard that the conflagration arouses and the natural gas of insufficient combustion to the pollution of environment, safe and reliable to reduced too onerous manual operation flow, reduced staff's operating time and work load, alleviateed staff's intensity of labour, improved work efficiency.

The purpose of the utility model can be realized by adopting the following technical scheme:

the utility model provides a heating device, including heating coil and many magnetrons, the crude oil import and the crude oil export correspondence at heating coil both ends insert oil pipe, so that heating coil with oil pipe is linked together, each the continuous interval of magnetron set up in heating coil, each the power end of magnetron is respectively through the power supply end electric connection of magnetron connecting wire with the controller.

In a preferred embodiment of the present invention, the outer cover of the magnetron is provided with a protective cover, the protective cover is provided with a plurality of supporting and positioning members for fixing the magnetron, and the supporting and positioning members are fixed between the outer wall of the magnetron and the inner wall of the protective cover.

In a preferred embodiment of the present invention, the heating device further comprises a housing, the heating coil is located inside the housing, the crude oil inlet and the crude oil outlet extend to the outside of the housing, and the housing is filled with a heat insulating material.

In a preferred embodiment of the present invention, the heat insulating material is heat insulating cotton.

In a preferred embodiment of the present invention, the bottom of the housing is provided with a support frame.

The utility model discloses an in a preferred embodiment, the internally mounted of crude oil export has the temperature control sensor, the detected signal output part of temperature control sensor with the detected signal receiving terminal of controller is connected.

The utility model discloses an in a preferred embodiment, heating device still includes the electric cabinet, the controller sets up in the electric cabinet, be provided with control on the electric cabinet the air switch and the control that the controller inserts the power are received temperature detect sensor detected signal's start button.

The utility model discloses an in a preferred embodiment, the controller includes high voltage transformer, high voltage transformer's primary coil inserts three phase current through first power supply line, be provided with the circuit breaker on the first power supply line, the circuit breaker with air switch connects, high voltage transformer's secondary coil through many transmission lines correspond with the magnetron the magnetron connecting wire is connected.

The utility model discloses an in a preferred embodiment, it has high-voltage fuse and high-voltage capacitor to establish ties on the power transmission line, draw forth the earth connection that inserts zero potential point on the power transmission line, be provided with high voltage diode on the earth connection, high voltage diode's negative pole with zero potential point connects.

The utility model discloses an in a preferred embodiment, the controller still includes radiator fan and temperature controller, radiator fan with the parallelly connected back of temperature controller inserts three phase current through the second power supply line, the detection signal receiving terminal of temperature controller pass through the thermocouple with temperature sensor's detection signal output end electric connection, be provided with on the second power supply line with the line switch that start button connects.

The utility model discloses an in a preferred embodiment, be provided with on the power transmission line with high-voltage fuse with the first remote control switch that is in normally closed state of high-voltage capacitor series connection, be provided with ac contactor on the temperature controller, radiator fan and time relay are parallelly connected and insert after establishing ties with the second remote control switch that is in normally open state again three phase current source, first remote control switch with second remote control switch all with ac contactor cooperation linkage.

In a preferred embodiment of the present invention, the crude oil inlet is provided with an inlet valve and an inlet pressure gauge.

In a preferred embodiment of the present invention, the crude oil outlet is provided with an outlet valve and an outlet pressure gauge.

The utility model discloses an in a preferred embodiment, crude oil import with be connected with communicating pipe between the crude oil export, be provided with the intercommunication valve on the communicating pipe.

From top to bottom, the utility model discloses a heating device's characteristics and advantage are: be provided with a plurality of magnetrons at the continuous interval in heating coil, heating coil's both ends correspondence is connected with oil pipe, replaces the heating device of the fire tube stove of well head among the prior art as the oil return through heating coil, the utility model discloses a microwave that heating device sent through the magnetron heats the oil return, and safe and reliable can not lead to the fact the pollution to the environment, in addition, can control the operating condition of each magnetron through the controller, controls the convenience, compares greatly reduced staff's work load and operating time with controlling of fire tube stove, alleviates staff's intensity of labour, improves work efficiency.

Drawings

The drawings are only intended to illustrate and explain the present invention and do not limit the scope of the invention. Wherein:

FIG. 1: is the structure schematic diagram of the heating device of the utility model.

FIG. 2: do the circuit structure diagram of the controller in the heating device of the utility model.

The utility model provides a reference numeral: 1. a housing; 2. a thermal insulation material; 3. a heating coil; 301. a crude oil inlet; 302. a crude oil outlet; 4. a magnetron; 401. connecting wires of the magnetron; 5. a protective sleeve; 6. a support positioning member; 7. a temperature control sensor; 8. an electric cabinet; 9. an air switch; 10. a start button; 11. an inlet valve; 12. an inlet pressure gauge; 13. an outlet valve; 14. an outlet pressure gauge; 15. a communicating pipe; 16. a communicating valve; 17. a support frame; 18. a high voltage transformer; 1801. a primary coil; 1802. a secondary coil; 19. a circuit breaker; 20. a transmission line; 2001. a first remote control switch; 2002. a high voltage fuse; 2003. a high-voltage capacitor; 2004. a high voltage diode; 21. a temperature controller; 22. a thermocouple; 23. a heat radiation fan; 24. an AC contactor; 25. a second remote control switch; 26. a time relay; 27. and (4) line switching.

Detailed Description

In order to clearly understand the technical features, objects, and effects of the present invention, embodiments of the present invention will be described with reference to the accompanying drawings.

As shown in fig. 1, the utility model provides a heating device, this heating device includes heating coil 3 and many magnetrons 4, heating coil 3's one end is crude oil import 301, heating coil 3's the other end is crude oil export 302, heating coil 3's crude oil import 301 and crude oil export 302 correspond in the oil pipe that inserts well head department, so that heating coil 3 is linked together with oil pipe, each magnetron 4 continuous interval sets up in heating coil 3's inside, one side of each magnetron 4 is fixed on heating coil 3's pipe wall, and each magnetron 4's tip stretches out to heating coil 3's outside, each magnetron 4's power end is respectively through the power supply end electric connection of magnetron connecting wire 401 with the controller, operating condition to each magnetron 4 through the controller is controlled. The utility model discloses continuous interval is provided with a plurality of magnetrons 4 in heating coil 3, and heating coil 3's both ends correspondence is connected with oil pipe, and the microwave that sends through magnetron 4 heats the oil return, and safe and reliable can not cause the pollution to the environment, in addition, can control each magnetron 4's operating condition through the controller, controls the convenience, greatly reduced staff's work load and operating time, alleviate staff's intensity of labour, improve work efficiency.

Further, the heating coil 3 can be made by quenching using, but not limited to, 45 steel.

As shown in fig. 1, the fixed cover in the outside of magnetron 4 is equipped with lag 5, lag 5 seals for one end, the cylindric structure of one end open, the open end of lag 5 is fixed on heating coil 3's inner wall, the inside of lag 5 is provided with a plurality of support positioning spare 6 of fixed magnetron 4, a plurality of support positioning spare 6 correspond and set up in magnetron 4's top and below, support positioning spare 6's one end and magnetron 4's outer wall connection, support positioning spare 6's the other end is fixed on the inner wall of lag 5, guarantee magnetron 4 through support positioning spare 6 and have good stability in lag 5.

Further, the protective sleeve 5 may be, but is not limited to, a microwave-specific tempered glass sleeve.

Specifically, the protecting jacket 5 is made of tempered glass.

As shown in fig. 1, the heating device further includes a housing 1, the housing 1 is a cuboid structure with a hollow interior, the heating coil 3 is fixed inside the housing 1, a crude oil inlet 301 of the heating coil 3 extends from one side of the housing 1 to the outside of the housing 1, a crude oil outlet 302 of the heating coil 3 extends from the other opposite side of the housing 1 to the outside of the housing 1, the housing 1 is filled with a thermal insulation material 2, and the thermal insulation material 2 occupies all the space between the interior of the housing 1 and the heating coil 3. Through the setting of shell 1 and inside insulation material 2, the reinforcing effect that keeps warm does benefit to the retention of heat in shell 1, guarantees to have good heating effect to the oil return.

Further, the insulation material 2 may be, but is not limited to, insulation cotton.

Further, as shown in fig. 1, a supporting frame 17 is provided at the bottom of the housing 1.

As shown in fig. 1, a temperature control sensor 7 is installed at a crude oil outlet 302 of the heating coil 3, the temperature control sensor 7 is located inside the crude oil outlet 302 and contacts with oil return through the crude oil outlet 302, a detection signal output end of the temperature control sensor 7 is connected with a detection signal receiving end of the controller, the temperature of the heated oil return is collected in real time through the temperature control sensor 7, and collected temperature information is transmitted to the controller, so that a worker can know the temperature of the oil return in real time, and can know whether the magnetron 4 has a sufficient heating effect on the oil return.

As shown in fig. 1, an inlet valve 11 and an inlet pressure gauge 12 are installed at a crude oil inlet 301 of the heating coil 3; an outlet valve 13 and an outlet pressure gauge 14 are installed at a crude oil outlet 302 of the heating coil 3, so that the return oil pressure values at the crude oil inlet 301 and the crude oil outlet 302 can be obtained in real time, the entering amount and the output amount of return oil are controlled according to the pressure values, and the return oil is stably and efficiently heated.

As shown in fig. 1, a communication pipe 15 is provided between a crude oil inlet 301 and a crude oil outlet 302 of the heating coil 3, one end of the communication pipe 15 is communicated with the crude oil inlet 301, the other end of the communication pipe 15 is communicated with the crude oil outlet 302, and a communication valve 16 is provided on the communication pipe 15. After the return oil is heated, the inlet valve 11 and the outlet valve 13 can be closed, the communication valve 16 is opened at the same time, the return oil can directly flow back to the ground through the communication pipe 15 without being heated by the magnetron 4, and the device is suitable for being used under the condition of low viscosity of the return oil.

As shown in fig. 1, the heating device further comprises an electric cabinet 8, the controller is arranged in the electric cabinet 8, an air switch 9 and a start button 10 are arranged on the side wall of the electric cabinet 8, and the controller is controlled to be connected to a power supply through the air switch 9; the controller is controlled by the start button 10 to receive the detection signal of the temperature control sensor 7.

Specifically, as shown in fig. 2, the controller includes a high voltage transformer 18, a primary coil 1801 of the high voltage transformer 18 is connected to a live wire of the three-phase power supply through a first power supply line, a circuit breaker 19 is disposed on the first power supply line, the circuit breaker 19 is connected to the air switch 9, a secondary coil 1802 of the high voltage transformer 18 is correspondingly connected to a magnetron connection line 401 of the magnetron 4 through a plurality of power transmission lines 20, and is further connected to power supply terminals of the magnetrons 4 through the magnetron connection line 401, and the whole controller is controlled to be connected to the three-phase power supply by controlling an open/close state of the.

Further, as shown in fig. 2, a high-voltage fuse 2002 and a high-voltage capacitor 2003 are sequentially connected in series on the power transmission line 20, a ground line connected to a zero potential point is led out of the power transmission line 20, a high-voltage diode 2004 is arranged on the ground line, a negative electrode of the high-voltage diode 2004 is connected to the zero potential point, and a positive electrode of the high-voltage diode 2004 is connected to the power transmission line 20, so that the magnetron 4 is protected by the power transmission line 20 between the magnetron 4 and the high-voltage transformer 18, and the magnetron 4 is prevented from being burnt out due to overlarge voltage applied to the magnetron 4.

Specifically, as shown in fig. 2, the controller further includes a heat dissipation fan 23 and a temperature controller 21, the heat dissipation fan 23 and the temperature controller 21 are connected in parallel and then are connected to a live line and a zero line of a three-phase power supply through a second power supply line, a detection signal receiving end of the temperature controller 21 is electrically connected to a detection signal output end of the temperature control sensor 7 through a thermocouple 22, a line switch 27 connected to the start button 10 is arranged on the second power supply line, the thermocouple 22 receives a temperature signal collected by the temperature control sensor 7 in real time, and transmits the temperature signal to the temperature controller 21, so that the temperature controller 21 can record and obtain the temperature of oil returned after the magnetron 4 is heated.

Further, as shown in fig. 2, the power transmission line 20 is further provided with a first remote switch 2001 in a normally closed state, which is connected in series with the high-voltage fuse 2002 and the high-voltage capacitor 2003. An alternating current contactor 24 is arranged on the temperature controller 21, the cooling fan 23 is connected with the time relay 26 in parallel and then connected with the second remote control switch 25 in a normally open state in series, the second remote control switch 25 is connected with a live wire and a zero wire of a three-phase power supply through a second power supply line, and the first remote control switch 2001 and the second remote control switch 25 are matched and linked with the alternating current contactor 24. The first remote switch 2001 is controlled to be opened and closed through the alternating current contactor 24, so that the working state of the magnetron 4 is controlled; the second remote switch 25 is controlled to be opened and closed by the ac contactor 24, thereby controlling the operating state of the cooling fan 23.

The working principle of the heating device is as follows: when the heating device works normally, the inlet valve 11 and the outlet valve 13 are opened, the communication valve 16 is closed, the air switch 9 is closed, so that the circuit breaker 19 is closed, at this time, the ac contactor 24 is in an attraction state, the first remote control switch 2001 is closed, the second remote control switch 25 is opened, the heat dissipation fan 23 stops working, the power supply supplies about 4000V high voltage to each magnetron 4, each magnetron 4 generates 2450MHz high frequency electromagnetic wave (i.e. microwave) under the excitation of the power supply, when the microwaves pass through the protective sleeve 5 and are radiated to the mixed liquid of the return oil and the water in the heating coil 3, because the water in the mixed liquid consists of polar molecules which change along with the microwave field from the original random distribution, because polar molecules of water do high-frequency motion under the action of microwaves and adjacent molecules do mutual friction motion, the water temperature is raised, and the return oil is heated by the magnetron 4. When the air switch 9 is turned on and the start button 10 is pressed down, so that the line switch 27 is closed, when the temperature signal received by the thermocouple 22 reaches a preset temperature value, the alternating current contactor 24 is turned off, so that the first remote control switch 2001 is turned off, the second remote control switch 25 is turned on, each magnetron 4 stops heating, the cooling fan 23 operates to dissipate heat, the operation time of the cooling fan 23 is preset by the time relay 26, the cooling fan 23 stops operating after the set time is reached, after the temperature is reduced to be below the set temperature, the temperature controller 21 controls the alternating current contactor 24 to be closed, the first remote control switch 2001 is turned on again, the second remote control switch 25 is turned off again, the power supply supplies power to each magnetron 4, and each magnetron 4 restores to a normal working state; when the heating device stops working, the air switch 9 is turned off and the start button 10 is pressed again, the circuit breaker 19 is turned off, the line switch 27 is turned off, the communication valve 16 is opened, the inlet valve 11 and the outlet valve 13 are closed, and heating of the return oil is stopped.

The utility model discloses heating device's characteristics and advantage are:

one, this heating device is provided with a plurality of magnetrons 4 at continuous interval in heating coil 3, and heating coil 3's both ends correspond and are connected with oil pipe, replace the fire tube stove of well head among the prior art as the heating device of oil return through heating coil 3, and the microwave that sends through magnetron 4 heats the oil return, and safe and reliable can not cause the pollution to the environment.

Secondly, pack in this heating device in shell 1 and be equipped with insulation material 2, reinforcing heat preservation effect does benefit to the retention of heat in shell 1, guarantees to have good heating effect to the oil return.

Thirdly, the controller of the heating device respectively controls the working states of each magnetron 4 and the cooling fan 23 through the alternating current contactor 24, and the cooling fan 23 stops working and each magnetron 4 is in the working state under the normal state, so as to heat the return oil; when the heating temperature reaches a set threshold value, the alternating current contactor 24 controls the magnetron 4 to stop working and the cooling fan 23 to be started by controlling the change of the opening and closing states of the first remote control switch 2001 and the second remote control switch 25, so that the magnetron 4 and the electric elements in the shell 1 are cooled, the heating device is always in a normal working state, the operation and the control are convenient, the workload and the working time of workers are greatly reduced compared with the operation and the control of a fire tube furnace, the labor intensity of the workers is reduced, and the working efficiency is improved.

The above description is only exemplary of the present invention, and is not intended to limit the scope of the present invention. Any person skilled in the art should also realize that such equivalent changes and modifications can be made without departing from the spirit and principles of the present invention.

Claims (14)

1. The heating device is characterized by comprising a heating coil (3) and a plurality of magnetrons (4), wherein a crude oil inlet (301) and a crude oil outlet (302) at two ends of the heating coil (3) are correspondingly connected into an oil pipe, so that the heating coil (3) is communicated with the oil pipe, the magnetrons (4) are continuously arranged in the heating coil (3) at intervals, and power supply ends of the magnetrons (4) are electrically connected with a power supply end of a controller through a magnetron connecting wire (401) respectively.

2. A heating device as claimed in claim 1, wherein a protective sleeve (5) is fixedly sleeved on the outer side of the magnetron (4), a plurality of supporting and positioning members (6) for fixing the magnetron (4) are arranged inside the protective sleeve (5), and the supporting and positioning members (6) are fixed between the outer wall of the magnetron (4) and the inner wall of the protective sleeve (5).

3. The heating device according to claim 1, characterized in that it further comprises a housing (1), the heating coil (3) being located inside the housing (1), the crude oil inlet (301) and the crude oil outlet (302) of the heating coil (3) protruding outside the housing (1), the housing (1) being filled with an insulating material (2).

4. A heating device according to claim 3, characterized in that the insulating material (2) is insulating cotton.

5. A heating device as claimed in claim 3, characterized in that the bottom of the housing (1) is provided with a support frame (17).

6. The heating device as claimed in claim 1, wherein a temperature control sensor (7) is installed inside the crude oil outlet (302), and a detection signal output end of the temperature control sensor (7) is connected with a detection signal receiving end of the controller.

7. The heating device according to claim 6, characterized in that the heating device further comprises an electric cabinet (8), the controller is arranged in the electric cabinet (8), and an air switch (9) for controlling the controller to be connected to a power supply and an activation button (10) for controlling the controller to receive a detection signal of the temperature control sensor (7) are arranged on the electric cabinet (8).

8. The heating device according to claim 7, wherein the controller comprises a high voltage transformer (18), the primary coil (1801) of the high voltage transformer (18) is connected to a three-phase power supply through a first power supply line, a circuit breaker (19) is arranged on the first power supply line, the circuit breaker (19) is connected to the air switch (9), and the secondary coil (1802) of the high voltage transformer (18) is correspondingly connected to the magnetron connection line (401) of the magnetron (4) through a plurality of power transmission lines (20).

9. The heating device according to claim 8, characterized in that a high-voltage fuse (2002) and a high-voltage capacitor (2003) are connected in series on the power transmission line (20), a grounding wire connected to a zero potential point is led out from the power transmission line (20), a high-voltage diode (2004) is arranged on the grounding wire, and the cathode of the high-voltage diode (2004) is connected with the zero potential point.

10. The heating device according to claim 9, wherein the controller further comprises a heat dissipation fan (23) and a temperature controller (21), the heat dissipation fan (23) and the temperature controller (21) are connected in parallel and then are connected to a three-phase power supply through a second power supply line, a detection signal receiving end of the temperature controller (21) is electrically connected to a detection signal output end of the temperature control sensor (7) through a thermocouple (22), and a line switch (27) connected to the start button (10) is arranged on the second power supply line.

11. The heating device according to claim 10, wherein a first remote control switch (2001) which is connected with the high-voltage fuse (2002) and the high-voltage capacitor (2003) in series and is in a normally closed state is arranged on the power transmission line (20), an alternating current contactor (24) is arranged on the temperature controller (21), the cooling fan (23) is connected with a time relay (26) in parallel and then connected with a second remote control switch (25) which is in a normally open state in series and then connected with the three-phase power supply, and the first remote control switch (2001) and the second remote control switch (25) are matched and linked with the alternating current contactor (24).

12. The heating device according to claim 1, wherein an inlet valve (11) and an inlet pressure gauge (12) are installed at the crude oil inlet (301).

13. The heating device according to claim 1 or 12, wherein an outlet valve (13) and an outlet pressure gauge (14) are installed at the crude oil outlet (302).

14. The heating device according to claim 1, wherein a communicating pipe (15) is connected between the crude oil inlet (301) and the crude oil outlet (302), and a communicating valve (16) is arranged on the communicating pipe (15).

Images