阅读说明：本技术 一种输油管道原油电磁加热棒及加热方法 (Crude oil electromagnetic heating rod for oil pipeline and heating method ) 是由 高宝元 于 2019-09-18 设计创作，主要内容包括：本发明属于原油加热技术领域,具体涉及一种输油管道原油电磁加热棒及加热方法。本发明通过防爆接线盒、安装短节和由护套壳体、主电磁线圈、副电磁线圈和电磁软磁铁组成的电磁加热单元的有机设置的电磁加热棒,经安装原油电磁加热棒、原油电磁加热棒开始工作、原油电磁加热棒数据获取并进行控制和原油电磁加热棒工作停止四个步骤,提供了一种安全、可靠、热效率高的且使用寿命长、维修便利的输油管道原油电磁加热棒及加热方法。(The invention belongs to the technical field of crude oil heating, and particularly relates to an electromagnetic heating rod and a heating method for crude oil in an oil pipeline. The invention provides the crude oil electromagnetic heating rod and the heating method for the oil pipeline, which are safe, reliable, high in heat efficiency, long in service life and convenient to maintain, through the explosion-proof junction box, the installation short section and the electromagnetic heating rod which is organically arranged of the electromagnetic heating unit consisting of the sheath shell, the main electromagnetic coil, the auxiliary electromagnetic coil and the electromagnetic soft magnet, and through four steps of installing the crude oil electromagnetic heating rod, starting to work the crude oil electromagnetic heating rod, acquiring and controlling the data of the crude oil electromagnetic heating rod and stopping the work of the crude oil electromagnetic heating rod.)

1. The utility model provides an oil pipeline crude oil electromagnetic heating stick which characterized in that: comprises that

The anti-explosion junction box comprises an anti-explosion junction box (1), wherein a control cable outlet (9) is formed in the side surface of the anti-explosion junction box (1);

the anti-explosion junction box comprises an installation short section (3), wherein one end of the installation short section (3) is connected with the anti-explosion junction box (1), a control cable is connected in the installation short section (3), and the control cable is connected with an external power supply through a control cable outlet (9);

the electromagnetic heating unit is connected to the other end of the mounting short section (3) and used for converting magnetic field energy into heat energy.

2. The electromagnetic heating rod for crude oil in oil pipelines according to claim 1, characterized in that: the remote control terminal is electrically connected with the electromagnetic heating unit.

3. The electromagnetic heating rod for crude oil in oil pipelines according to claim 1, characterized in that: the electromagnetic heating unit comprises a sheath shell (5), a main electromagnetic coil (6), an auxiliary electromagnetic coil (7) and an electromagnetic soft magnet (8); one end of the electromagnetic soft magnet (8) is connected with the other end of the mounting short section (3) through a cable; the main electromagnetic coil (6) and the auxiliary electromagnetic coil (7) are sequentially sleeved on the electromagnetic soft magnet (8) from outside to inside, a gap is formed between the electromagnetic coil (6) and the auxiliary electromagnetic coil (7), and one ends of the electromagnetic coil (6) and the auxiliary electromagnetic coil (7) are respectively connected with the mounting short section (3); the main electromagnetic coil (6), the auxiliary electromagnetic coil (7) and the electromagnetic soft magnet (8) are all arranged in the sheath shell (5).

4. The electromagnetic heating rod for crude oil in oil pipelines according to claim 3, characterized in that: also comprises a temperature measuring tube (4); the temperature measuring pipe (4) is connected with the mounting nipple (3) and is arranged in the sheath shell (5).

5. The heating method of the electromagnetic heating rod for crude oil in the oil pipeline according to claim 3, characterized in that: the main electromagnetic coil (6) and the auxiliary electromagnetic coil (7) are both cylindrical and both adopt a core-pulling and combined structure.

6. The heating method of the electromagnetic heating rod for crude oil in the oil pipeline according to claim 3, characterized in that: the main electromagnetic coil (6) is a solenoid formed by processing nickel-chromium-titanium alloy with the diameter of 2mm and the length of 20m, the auxiliary electromagnetic coil (7) is a solenoid formed by processing nickel-chromium-titanium alloy with the diameter of 1mm and the length of 15m, and the electromagnetic soft magnet (8) is formed by processing neodymium-iron-boron with the diameter of 5mm and the length of 1 m.

7. The electromagnetic heating rod for crude oil in oil pipelines according to claim 1, characterized in that: a connecting flange (2) is arranged between the mounting short section (3) and the explosion-proof junction box (1); and the explosion-proof junction box (1) is provided with a grounding protection (10).

8. The heating method of the crude oil electromagnetic heating rod of the oil pipeline is characterized by comprising the following steps

The method comprises the following steps: electromagnetic heating rod for installing crude oil

Turning off the oil well of the oil pumping unit, inserting the crude oil electromagnetic heating rod of the oil pipeline into the central position of the oil pipeline, staying for 8-12 minutes, connecting an external power supply with a cable in a control cable outlet (9), completing wiring, checking and confirming the wiring correctness, and starting the oil well of the oil pumping unit;

step two: the crude oil electromagnetic heating rod starts to work

After the first step is completed and safety is confirmed according to the requirement of power transmission operation regulations, an external power supply starts to supply power, and the crude oil electromagnetic heating rod starts to work;

step three: crude oil electromagnetic heating rod data acquisition and control

When the second step is finished, the remote control terminal acquires temperature data through the temperature measuring pipe (4), when the temperature of the crude oil measured by the temperature measuring pipe is lower than the primary set temperature, the remote control terminal sends an instruction to simultaneously work the main electromagnetic coil and the auxiliary electromagnetic coil, and when the temperature of the crude oil measured by the temperature measuring pipe is lower than the secondary set temperature, the remote control terminal sends an instruction to work the main electromagnetic coil and stop working the auxiliary electromagnetic coil;

step four: crude oil electromagnetic heating rod stop

And when the temperature data acquired by the remote control terminal in the third step reaches the preset temperature, the crude oil electromagnetic heating rod stops heating.

9. The heating method of the electromagnetic heating rod for crude oil in the oil pipeline according to claim 8, characterized in that: the residence time in the first step is 10 minutes.

10. The heating method of the electromagnetic heating rod for crude oil in the oil pipeline according to claim 8, characterized in that: in the second step, the first-stage set temperature is 40 ℃, and the second-stage set temperature is 50 ℃.

Technical Field

The invention belongs to the technical field of crude oil heating, and particularly relates to an electromagnetic heating rod and a heating method for crude oil in an oil pipeline.

Background

At present, crude oil in oil pipelines of a well site and an oil collection station is heated by an oil field in a mode of heating by a heat tracing band and various electric heating tubes, but when the crude oil in the oil pipelines of the well site and the oil collection station is heated by the heat tracing band, the heat efficiency is low, and after underground damage, a large amount of earthwork is required to be excavated to complete maintenance operation, so that the maintenance is difficult. When crude oil in oil pipelines of a well site and an oil collecting station is heated by adopting various heating modes of the electric heating tube, the electric heating tube is easy to scale, the thermal efficiency is gradually reduced after scaling, and the electric heating tube is easy to damage.

Disclosure of Invention

The invention provides an oil pipeline crude oil electromagnetic heating rod and a heating method, and aims to provide an oil pipeline crude oil electromagnetic heating rod and a heating method which are safe, reliable and high in heat efficiency; the second purpose is to provide an oil pipeline crude oil electromagnetic heating rod with long service life and convenient maintenance and a heating method.

In order to achieve the purpose, the invention adopts the technical scheme that:

an electromagnetic heating rod for crude oil in oil pipeline comprises

The side surface of the explosion-proof junction box is provided with a control cable outlet;

the anti-explosion short joint comprises an installation short joint, a control cable and a power supply, wherein one end of the installation short joint is connected with the anti-explosion junction box;

and the electromagnetic heating unit is connected to the other end of the mounting short section and is used for converting magnetic field energy into heat energy.

The remote control terminal is electrically connected with the electromagnetic heating unit.

The electromagnetic heating unit comprises a sheath shell, a main electromagnetic coil, an auxiliary electromagnetic coil and an electromagnetic soft magnet; one end of the electromagnetic soft magnet is connected with the other end of the mounting short section through a cable; the main electromagnetic coil and the auxiliary electromagnetic coil are sequentially sleeved on the electromagnetic soft magnet from outside to inside, a gap is formed between the electromagnetic coil and the auxiliary electromagnetic coil, and one ends of the electromagnetic coil and the auxiliary electromagnetic coil are respectively connected with the mounting short section; the main electromagnetic coil, the auxiliary electromagnetic coil and the electromagnetic soft magnet are all arranged in the sheath shell.

Also comprises a temperature measuring tube; the temperature measuring pipe is connected with the mounting short section and is arranged in the sheath shell.

The main electromagnetic coil and the auxiliary electromagnetic coil are both cylindrical and both adopt a core-pulling and combined structure.

The main electromagnetic coil is by the diameter be 2mm, and length is 20m nickel-chromium titanium alloy processing and forms the solenoid, vice electromagnetic coil is by the diameter be 1mm, and length is 15m nickel-chromium titanium alloy processing and forms the solenoid, electromagnetism soft magnet is by the diameter be 5mm, and length is 1m neodymium iron boron processing and forms.

A connecting flange is arranged between the mounting short section and the explosion-proof junction box; and the explosion-proof junction box is provided with a grounding protection.

An electromagnetic heating rod heating method for crude oil in an oil pipeline comprises the following steps

The method comprises the following steps: electromagnetic heating rod for installing crude oil

Turning off the oil well of the oil pumping unit, inserting the crude oil electromagnetic heating rod of the oil pipeline into the central position of the oil pipeline, staying for 8-12 minutes, connecting an external power supply with a cable in the outlet of the control cable, completing wiring, checking and confirming the correctness of the wiring, and starting the oil well of the oil pumping unit;

step two: the crude oil electromagnetic heating rod starts to work

After the first step is completed and safety is confirmed according to the requirement of power transmission operation regulations, an external power supply starts to supply power, and the crude oil electromagnetic heating rod starts to work;

step three: crude oil electromagnetic heating rod data acquisition and control

When the temperature of the crude oil measured by the temperature measuring pipe is lower than the second-level set temperature, the remote control terminal sends an instruction to the main electromagnetic coil to work simultaneously, and when the temperature of the crude oil measured by the temperature measuring pipe is lower than the second-level set temperature, the remote control terminal sends an instruction to the main electromagnetic coil to work, and the auxiliary electromagnetic coil stops working;

step four: crude oil electromagnetic heating rod stop

And when the temperature data acquired by the remote control terminal in the third step reaches the preset temperature, the crude oil electromagnetic heating rod stops heating.

The residence time in the first step is 10 minutes.

In the second step, the first-stage set temperature is 40 ℃, and the second-stage set temperature is 50 ℃.

Has the advantages that:

(1) the rod eddy current heating of the invention is not contacted with the electromagnetic coil, thus being safe and reliable, short in heating time and good in energy-saving effect;

(2) the oil pipeline structure adopts a sheath type rod-shaped structure, the length of a single rod is 0.5-2 m, and the oil pipeline structure is suitable for various oil pipelines, so that the application range of the oil pipeline structure is wider;

(3) the main electromagnetic coil and the auxiliary electromagnetic coil adopt the core-pulling and combined design, so that the maintenance and the replacement are not required to clean the tank, and only partial rod cores are replaced, thus the maintenance and the replacement are simple and convenient;

(4) the built-in temperature switch, the temperature safety and the Pt100 thermal resistor triple overheating protection device effectively prevent abnormal faults such as overheating, dry burning, overcurrent and the like;

(5) when the temperature of the heating medium is lower than a set value, the heating rod is started, and when the temperature is higher than the set temperature value, the heating rod is automatically stopped or the output power is reduced.

(6) The invention has the characteristics of safety, reliability, simple operation, low investment cost, long service life, no maintenance and the like; is suitable for various explosion-proof or non-explosion-proof places.

The foregoing description is only an overview of the technical solutions of the present invention, and in order to clearly understand the technical solutions of the present invention and to implement the technical solutions according to the contents of the description, the following detailed description is given with reference to the preferred embodiments of the present invention and the accompanying drawings.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.

FIG. 1 is a schematic structural view of the present invention;

fig. 2 is a flow chart of the present invention.

In the figure: 1-explosion-proof junction box; 2-a connecting flange; 3, installing a short section; 4-temperature measuring tube; 5-a sheath housing; 6-a main electromagnetic coil; 7-a secondary electromagnetic coil; 8-electromagnetic soft magnet; 9-control cable outlet; 10-ground protection.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.