CN204628936U - From adding hot fluid connecting conveying pipe - Google Patents

Abstract

The utility model belongs to the technical field of pipes and discloses a self-heating fluid connection delivery pipe. Its main technical solution is: including a pipe body and a joint, the pipe body includes a core tube, a winding reinforcement layer and an outer protective layer, the joint includes an inner core and an outer lock skin threadedly connected to the inner side of the core tube, in the There is a protruding ring at the end of the inner core, a lock nut on the outside of the protruding ring, a gasket at the end of the protruding ring, an insulation layer is arranged between the core tube and the winding reinforcement layer, and the An electric heating belt with an electric heating wire is spirally inlaid in the thermal insulation layer, and an induction heating mesh is inlaid inside the core tube. After electrification, the electric heating belt generates heat, which is transmitted to the inside of the core tube through the core tube wall. The magnetic field generated by the electric heating belt makes the induction heating mesh generate heat, and the heat generated by the induction heating mesh is quickly transferred to the inside of the core tube, heating It is more uniform, saves energy, improves corrosion resistance and prolongs service life.

Description

Self-Heating Fluid Connection Delivery Tubing

technical field

The utility model belongs to the technical field of pipes, and specifically discloses a self-heating fluid connection delivery pipe.

Background technique

During the transportation of crude oil after well logging, due to the different downhole depths, when the temperature is low, the crude oil is easy to form granular crude oil or even crude oil lumps, causing pipeline blockage. In order to avoid crude oil blockage, the following two methods are generally adopted: First, a large amount of alcohol is added to the crude oil to dilute the irregular granular crude oil, which causes a large amount of economic losses to the oil field; second, a heating belt parallel to the axial direction is used on the outside of the core tube, and the core Tube heating, and then increase the temperature inside the core tube, although the above method has solved the problem of crude oil solidification, but there are the following defects: 1, because the core mold is made of corrosion-resistant polyethylene or rubber material, its thermal conductivity is poor, resulting in energy waste Serious; 2. In order to improve the insulation performance, the core mold has a certain thickness; 3. The heating uniformity is poor.

Utility model content

The technical problem to be solved by the utility model is to provide a self-heating fluid connection delivery pipe with uniform heating, energy saving, temperature control according to needs, good corrosion resistance and long service life.

In order to solve the above technical problems, the technical solution adopted by the utility model is: comprising a pipe body and a joint, the pipe body includes a core pipe, a winding reinforcement layer and an outer protective layer, and the joint includes a threaded connection with the inner side of the core pipe Inner core and outer lock skin, with a protruding ring at the end of the inner core, with a lock nut on the outside of the protruding ring, with a gasket at the end of the protruding ring, on the core tube and the winding reinforcement layer An insulating layer is arranged between them, and an electric heating belt with an electric heating wire is spirally inlaid in the insulating layer.

Its additional technical features are:

An induction heating mesh is embedded inside the core tube;

At the intersection of the warp and weft on the inner surface of the induction heating mesh, there is a metal top wire whose top end extends into the inside of the core tube.

Compared with the prior art, the self-heating fluid connection delivery pipe provided by the utility model has the following advantages: First, because it includes a pipe body and a joint, the pipe body includes a core pipe, a winding reinforcement layer and an outer protective layer, so The joint includes an inner core and an outer lock skin that are threadedly connected to the inside of the core tube, a protruding ring at the end of the inner core, a lock nut on the outside of the protruding ring, and a sealing ring at the end of the protruding ring. Pad, an insulation layer is arranged between the core tube and the winding reinforcement layer, and an electric heating belt with an electric heating wire is spirally inlaid in the insulation layer. After being energized, the electric heating belt generates heat, and the generated heat It is transmitted to the inside of the core tube through the core tube wall, the heating is more uniform, energy is saved, the corrosion resistance is improved, and the service life is prolonged; The magnetic field makes the induction heating mesh generate heat, and the heat generated by the induction heating mesh is quickly transferred to the inside of the core tube; thirdly, because there is a tip extending into the intersection of the warp and weft on the inner surface of the induction heating mesh To the metal top wire inside the core tube, the metal top wire quickly transfers the heat generated by the induction heating mesh and the heat transferred by the electric heating belt to the inside of the core tube. Since the induction heating mesh is not charged, it will not cause leakage ACCIDENT.

Description of drawings

Fig. 1 is the structural representation of the self-heating fluid connection delivery pipe of the utility model;

Fig. 2 is the radial sectional view of pipe body;

Fig. 3 Radial cross-sectional view of a pipe body with an induction heating mesh.

Detailed ways

The structure of the self-heating fluid connection delivery pipe provided by the utility model will be further described in detail below in conjunction with the accompanying drawings.

As shown in Figure 1 and Figure 2, the self-heating fluid connection delivery pipe provided by the utility model has a structure including a pipe body 1 and a joint 2, the pipe body 1 includes a core pipe 11, a winding reinforcement layer 12 and an outer protective layer 13, and the joint 2. It includes an inner core 21 and an outer lock skin 22 that are screwed to the inner side of the core tube 11. There is a protruding ring 23 at the end of the inner core 21, a lock nut 24 on the outside of the protruding ring 23, and a gasket at the end of the protruding ring 23. 25. An insulation layer 14 is provided between the core tube 11 and the winding reinforcement layer 12, and an electric heating belt 16 with an electric heating wire 15 is spirally inlaid in the insulation layer 14. After being energized, the electric heating belt 16 generates heat, and the resulting The heat is transferred to the inside of the core tube 11 through the core tube wall, the heating is more uniform, the energy is saved, the corrosion resistance is improved, and the service life is prolonged.

As shown in FIG. 3 , an induction heating mesh 17 is inlaid inside the core tube 11 , and the magnetic field generated by the electric heating belt 16 causes the induction heating mesh 17 to generate heat, and the heat generated by the induction heating mesh 17 is quickly transferred to the inside of the core tube.

At the intersection of the warp and weft on the inner surface of the induction heating mesh 17, there is a metal top wire 18 with the top extending into the inside of the core tube. The metal top wire 18 transfers the heat generated by the induction heating mesh and the electric heating belt to it. The heat on the top is quickly transferred to the inside of the core tube 11, and since the induction heating mesh is not charged, it will not cause leakage accidents.

The scope of protection of the utility model is not limited to the above-mentioned embodiments, as long as the structure is the same as that of the self-heating fluid connection delivery pipe of the utility model, it falls within the scope of protection of the utility model.

Claims (3)

1. Self-heating fluid connection delivery pipe, including a pipe body and a joint, the pipe body includes a core tube, a winding reinforcement layer and an outer protective layer, and the joint includes an inner core and an outer lock skin threadedly connected to the inner side of the core tube , with a protruding ring at the end of the inner core, with a lock nut on the outside of the protruding ring, and with a gasket at the end of the protruding ring, characterized in that: between the core tube and the winding reinforcement layer An insulation layer is provided, and an electric heating belt with an electric heating wire is spirally inlaid in the insulation layer. 2. The self-heating fluid connection delivery tube according to claim 1, characterized in that: an induction heating mesh is embedded inside the core tube. 3. The self-heating fluid connection delivery pipe according to claim 2, characterized in that: the intersection of the warp wire and the weft wire on the inner surface of the induction heating mesh has a metal top wire that extends into the inside of the core tube .