CN217380496U

CN217380496U - Ground heating device for double hollow rods of oil well

Info

Publication number: CN217380496U
Application number: CN202221587069.5U
Authority: CN
Inventors: 刘世江; 刘龙; 李佩泽
Original assignee: Dongguang County Yuandong Petroleum Equipment Co ltd
Current assignee: Dongguang County Yuandong Petroleum Equipment Co ltd
Priority date: 2022-06-23
Filing date: 2022-06-23
Publication date: 2022-09-06
Anticipated expiration: 2032-06-23

Abstract

The utility model discloses a double hollow rod ground heating device for an oil well, which comprises a water tank for storing water, wherein the lower part of the water tank is connected with an air energy heater through a first water outlet pipe, a first circulating pump is arranged on the first water outlet pipe, and a water outlet of the air energy heater is connected with the water tank through a return water pipe; the water tank is provided with a second water outlet pipe connected with the double hollow rod, the second water outlet pipe is provided with a second circulating pump, the second water outlet pipe is provided with an electromagnetic heating mechanism, and a water outlet of the double hollow rod is connected with the water tank through a connecting pipe. The utility model adopts the above structure's two hollow rod ground heating device of oil well can solve current heating device heating temperature low, with high costs, cause pollution and extravagant problem easily.

Description

Ground heating device for double hollow rods of oil well

Technical Field

The utility model belongs to the technical field of heating device technique and specifically relates to a two hollow rod ground heating device of oil well is related to.

Background

In the production process of the high-condensation high-wax crude oil well, the inside of the double hollow rod needs to be cleaned because a wax layer is easily generated inside the double hollow rod. Chinese patent CN202031563U discloses a shaft double hollow sucker rod hot water circulation heating device, which presses hot water at 80 ℃ through a hot water pipeline, then adds the hot water into an inner channel of the double hollow rod, and then returns to the ground through an outer channel thereof. The patent mainly describes the process of circulating hot water entering the double hollow rod and then returning from the double hollow rod, without any specific heating structure, and the temperature of the water is low. Chinese patent CN210422584U discloses a closed heat carrier circulation heating system for thickened oil thermal recovery hollow rod, which heats a circulation box by burning fuel in a combustion chamber, and sends steam generated after heating into the hollow rod through a circulation pump and a circulation pipe. Heating need utilize the fuel burning to mend the temperature in this patent, not only causes the waste of fuel, and is with high costs, but also causes the pollution of air easily.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a two hollow rod ground heating device of oil well solves current heating device heating temperature low, with high costs, causes pollution and extravagant problem easily.

In order to achieve the purpose, the utility model provides an oil well double hollow rod ground heating device, which comprises a water tank for storing water, wherein the lower part of the water tank is connected with an air energy heater through a first water outlet pipe, a first circulating pump is arranged on the first water outlet pipe, and a water outlet of the air energy heater is connected with the water tank through a return water pipe; and a second water outlet pipe connected with the double hollow rod is arranged on the water tank, a second circulating pump is arranged on the second water outlet pipe, an electromagnetic heating mechanism is arranged on the second water outlet pipe, and a water outlet of the double hollow rod is connected with the water tank through a connecting pipe.

Preferably, a first filter is arranged on the first water outlet pipe and is located between the first circulating pump and the water tank.

Preferably, the return pipe is located at the middle or lower part of the water tank.

Preferably, the water outlet pipe is located on the upper portion of the water tank, the valve and the filter are arranged on the water outlet pipe II, the valve and the filter are located between the circulating pump II and the water tank, the pressure gauge is arranged on the water outlet pipe II, and the pressure gauge is located between the electromagnetic heating mechanism and the double hollow rod.

Preferably, the electromagnetic heating mechanism comprises a metal heating pipe, two ends of the heating pipe are connected with the second water outlet pipe through flanges, a heat insulation layer is coated outside the heating pipe, an electromagnetic induction coil is wound on the heat insulation layer, and two ends of the electromagnetic induction coil are connected with the electromagnetic heating controller; the inside of heating pipe is provided with the breakwater, and the breakwater distributes in the inside crisscross of heating pipe, and the delivery port department of heating pipe is provided with the structure of flow equalizing.

Preferably, the water baffle is obliquely arranged inside the heating pipe, the water baffle is a major arc plate with the height larger than the radius of the heating pipe, and the adjacent water baffles are overlapped.

Preferably, the flow equalizing structure comprises a plurality of flow equalizing plates arranged in parallel, a plurality of supporting rods are arranged between the flow equalizing plates, and the supporting rods are connected with the heating pipe.

Preferably, the flow equalizing plate is a wave-shaped plate.

Preferably, the water tank, the first water outlet pipe, the water return pipe and the second water outlet pipe are all coated with heat preservation cotton.

A two hollow pole ground heating device of oil well, at first adopt the air can the heater to carry out preliminary heating to the water in the water tank, then the rethread electromagnetic heating mechanism carries out the secondary heating to water, is favorable to improving the temperature of water, can improve the temperature of water to 80-110 ℃, satisfies the high temperature water needs of special oil well. The air energy heater and the electromagnetic heating mechanism are adopted to heat water, and the water heating device has the advantages of energy conservation, low cost and small pollution. The arrangement of the water baffle and the flow equalizing plate in the electromagnetic heating mechanism is favorable for improving the heating effect and uniformity of water flow.

The technical solution of the present invention is further described in detail by the accompanying drawings and examples.

Drawings

FIG. 1 is a schematic structural diagram of an embodiment of a ground heating device with double hollow rods for an oil well according to the present invention;

FIG. 2 is a schematic structural view of an electromagnetic heating mechanism of an embodiment of the oil well double hollow rod ground heating device of the present invention;

FIG. 3 is a schematic view of the water inlet end of the heating pipe of the embodiment of the ground heating device with double hollow rods for an oil well of the present invention;

fig. 4 is a schematic structural view of the water outlet end of the heating pipe of the oil well double-hollow-rod ground heating device.

Reference numerals

1. A water tank; 2. a first water outlet pipe; 3. an air energy heater; 4. a first filter; 5. a first circulating pump; 6. a water return pipe; 7. a water outlet pipe II; 8. a valve; 9. a second filter; 10. a second circulating pump; 11. an electromagnetic heating mechanism; 12. a pressure gauge; 13. heating a tube; 14. a heat insulating layer; 15. an electromagnetic induction coil; 16. a water baffle; 17. a flow equalizing plate; 18. a support rod.

Detailed Description

The technical solution of the present invention is further explained by the accompanying drawings and examples.

Unless defined otherwise, technical or scientific terms used herein shall have the ordinary meaning as understood by those of ordinary skill in the art to which the invention belongs. The use of "first," "second," and the like in the description of the invention does not denote any order, quantity, or importance, but rather the terms "first," "second," and the like are used to distinguish one element from another. The word "comprising" or "comprises", and the like, means that the element or item preceding the word comprises the element or item listed after the word and its equivalent, but does not exclude other elements or items. The terms "connected" or "coupled" and the like are not restricted to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "upper", "lower", "left", "right", and the like are used only to indicate relative positional relationships, and when the absolute position of the object being described is changed, the relative positional relationships may also be changed accordingly.

Examples

Fig. 1 is a schematic structural diagram of an embodiment of the ground heating device with double hollow rods for an oil well. As shown in the figure, the ground heating device with the double hollow rods for the oil well comprises a water tank 1 for storing water, wherein a liquid level meter for detecting the water level in the water tank 1 is arranged on the water tank 1, and a water replenishing port is arranged at the top of the water tank 1. The lower portion of the water tank 1 is connected with the air energy heater 3 through the first water outlet pipe 2, water with high temperature in the water tank 1 moves towards the top of the water tank 1, water temperature at the lower portion of the water tank 1 is low, and the first water outlet pipe 2 is arranged at the lower portion of the water tank 1, so that water with low temperature in the water tank 1 can enter the air energy heater 3 through the first water outlet pipe 2 to be heated. And a first circulating pump 5 is arranged on the first water outlet pipe 2, and the first circulating pump 5 provides power for the circulating flow of water. A first filter 4 is arranged on the first water outlet pipe 2, and the first filter 4 is positioned between the first circulating pump 5 and the water tank 1. The first filter 4 is of an existing structure and is used for filtering water in the water tank 1. The water outlet of the air energy heater 3 is connected with the water tank 1 through the water return pipe 6, and the air energy heater 3 returns the heated water to the water tank 1 through the water return pipe 6. The water return pipe 6 is positioned in the middle or lower part of the water tank 1, and the water return pipe 6 is positioned above the first water outlet pipe 2.

The air energy heater 3 adopts the existing structure, the air energy heater 3 works according to the 'inverse Carnot' principle, a small amount of electric energy is adopted to drive the compressor to run, high-pressure liquid working medium is evaporated into gas state in the evaporator after passing through the expansion valve, and absorbs a large amount of heat energy from the air, the gas working medium is compressed into high-temperature and high-pressure liquid state by the compressor, and enters the condenser to release heat to heat water, so that the water can be heated to 50-65 ℃ continuously and circularly, the air energy heater 3 does not need to consume too much electric energy, and does not need to burn fuel, thus the air energy heater has the advantages of energy conservation, cleanness and pollution reduction. The air energy heater 3 first preheats the water, raising the temperature of the water in the water tank 1.

The water tank 1 is provided with a second water outlet pipe 7 connected with the double hollow rod, the second water outlet pipe 7 is positioned on the upper portion of the water tank 1, the water temperature on the upper portion of the water tank 1 is high, and the second water outlet pipe 7 is arranged on the upper portion of the water tank 1, so that hot water with high temperature can be conveniently fed into the double hollow rod through the second water outlet pipe 7 to be heated. And a second circulating pump 10 is arranged on the second water outlet pipe 7, and the second circulating pump 10 provides power for the circulation of water. A valve 8 and a second filter 9 are arranged on the second water outlet pipe 7, the valve 8 and the second filter 9 are positioned between the second circulating pump 10 and the water tank 1, and the valve 8 can select a manual valve 8 or an electromagnetic valve according to requirements for controlling the opening and closing of the second water outlet pipe 7. The second filter 9 is of an existing structure and is used for filtering water entering the double hollow rod. A pressure gauge 12 is arranged on the second water outlet pipe 7, and the pressure gauge 12 is positioned between the electromagnetic heating mechanism 11 and the double hollow rod. The pressure gauge 12 is used for detecting the pressure of the pipeline, thereby judging the conditions of the double hollow rod and the pipeline. The water outlet of the double hollow rod is connected with the water tank 1 through a connecting pipe, and water is sent into the water tank 1 again, so that the circulation of the water is realized.

The second water outlet pipe 7 is provided with an electromagnetic heating mechanism 11, and the electromagnetic heating mechanism 11 is used for further heating the water in the second water outlet pipe 7 to increase the water temperature to 80-110 ℃ so as to meet the requirements of special high-temperature oil wells.

Fig. 2 is the structural schematic diagram of the electromagnetic heating mechanism of the oil well double hollow rod ground heating device of the utility model. As shown in the figure, the electromagnetic heating mechanism 11 comprises a metal heating pipe 13, the two ends of the heating pipe 13 are connected with the second water outlet pipe 7 through flanges, and a rubber sealing ring is arranged between the flange of the heating pipe 13 and the flange of the second water outlet pipe 7, so that the sealing effect is improved, and leakage is avoided. The heating pipe 13 is externally coated with a heat insulation layer 14, and the heat insulation layer 14 can be made of the existing heat insulation cotton, so that the heat loss on the heating pipe 13 is reduced. An electromagnetic induction coil 15 is wound on the heat insulation layer 14, and two ends of the electromagnetic induction coil 15 are connected with an electromagnetic heating controller. The electromagnetic induction coil 15 heats the metal pipe by electromagnetic induction heating, and then heats water in the metal pipe through the metal pipe.

Fig. 3 is a schematic structural view of the water inlet end of the heating pipe of the oil well double-hollow-rod ground heating device. As shown in the figure, the water baffles 16 are arranged inside the heating pipe 13, and the water baffles 16 are distributed in a staggered manner inside the heating pipe 13. The water baffles 16 are obliquely arranged inside the heating pipe 13, the water baffles 16 are arc-shaped plates with the height larger than the radius of the heating pipe 13, and the adjacent water baffles 16 are overlapped. The water baffle 16 is welded or fixedly connected with the heating pipe 13 through screws. After the water flow enters the heating pipe 13, the water baffle 16 divides the interior of the heating pipe 13 into a serpentine flow channel, so that the water flow flows from the serpentine flow channel, the water flow can be fully contacted with the heating pipe 13, and the heating effect is improved; and the water flow mixing uniformity can be improved due to the blocking of the water baffle 16. In addition, the water baffle 16 is contacted with the metal pipe, and the water baffle 16 also has the heating function to the water flow, thereby improving the heating effect.

Fig. 4 is a schematic structural view of the water outlet end of the heating pipe of the oil well double-hollow-rod ground heating device. As shown in the figure, a flow equalizing structure is arranged at the water outlet of the heating pipe 13. The flow equalizing structure comprises a plurality of flow equalizing plates 17 which are arranged in parallel, a plurality of supporting rods 18 are arranged between the flow equalizing plates 17, and the supporting rods 18 are welded with the heating pipe 13 or fixedly connected with the heating pipe 13 through bolts. The support rods 18 support the flow equalization plate 17. The flow equalizing plate 17 is a wave-shaped plate. The flow equalizing plate 17 is in contact with the metal pipe, the temperature of the metal flow equalizing plate 17 is higher, a certain heating effect is achieved on water flow, the water flow is heated while the water flow is equalized, and the heating effect is improved.

The water tank 1, the water outlet pipe I2, the water return pipe 6 and the water outlet pipe II 7 are all coated with heat preservation cotton, so that heat loss is reduced.

Therefore, the utility model adopts the above structure's two hollow rod ground heating device of oil well can solve current heating device heating temperature low, with high costs, cause pollution and extravagant problem easily.

Finally, it should be noted that: the above embodiments are only for illustrating the technical solutions of the present invention and not for limiting the same, and although the present invention is described in detail with reference to the preferred embodiments, those skilled in the art should understand that: the technical solution of the present invention can still be modified or replaced by other equivalent means, and the modified technical solution can not be separated from the spirit and scope of the technical solution of the present invention.

Claims

1. The utility model provides a two hollow rod ground heating device of oil well which characterized in that: the air energy heater comprises a water tank for storing water, wherein the lower part of the water tank is connected with the air energy heater through a first water outlet pipe, a first circulating pump is arranged on the first water outlet pipe, and a water outlet of the air energy heater is connected with the water tank through a return water pipe; and a second water outlet pipe connected with the double hollow rod is arranged on the water tank, a second circulating pump is arranged on the second water outlet pipe, an electromagnetic heating mechanism is arranged on the second water outlet pipe, and a water outlet of the double hollow rod is connected with the water tank through a connecting pipe.

2. The dual hollow rod surface heating apparatus for an oil well as claimed in claim 1, wherein: and a first filter is arranged on the first water outlet pipe and is positioned between the first circulating pump and the water tank.

3. The oil well double hollow rod ground heating device of claim 1, characterized in that: the water return pipe is positioned in the middle or the lower part of the water tank.

4. The oil well double hollow rod ground heating device of claim 1, characterized in that: and the water outlet pipe II is positioned on the upper part of the water tank, a valve and a filter II are arranged on the water outlet pipe II, the valve and the filter II are positioned between the circulating pump II and the water tank, a pressure gauge is arranged on the water outlet pipe II, and the pressure gauge is positioned between the electromagnetic heating mechanism and the double hollow rod.

5. The oil well double hollow rod ground heating device of claim 1, characterized in that: the electromagnetic heating mechanism comprises a metal heating pipe, two ends of the heating pipe are connected with the water outlet pipe II through flanges, a heat insulation layer is coated outside the heating pipe, an electromagnetic induction coil is wound on the heat insulation layer, and two ends of the electromagnetic induction coil are connected with the electromagnetic heating controller; the inside of heating pipe is provided with the breakwater, and the breakwater distributes in the inside crisscross of heating pipe, and the delivery port department of heating pipe is provided with the structure of flow equalizing.

6. The apparatus of claim 5 for heating the ground in the double hollow rod of an oil well, wherein: the water baffle is obliquely arranged in the heating pipe, the water baffle is a major arc plate with the height larger than the radius of the heating pipe, and the adjacent water baffles are in lap joint.

7. The apparatus of claim 5 for heating the ground in the double hollow rod of an oil well, wherein: the flow equalizing structure comprises a plurality of flow equalizing plates which are arranged in parallel, a plurality of supporting rods are arranged between the flow equalizing plates, and the supporting rods are connected with the heating pipes.

8. The apparatus of claim 7 for heating the ground in a double hollow rod of an oil well, wherein: the flow equalizing plate is a wave-shaped plate.

9. The oil well double hollow rod ground heating device of claim 1, characterized in that: the water tank, the first water outlet pipe, the water return pipe and the second water outlet pipe are all coated with heat preservation cotton.