CN104295821A

CN104295821A - Connecting device for in-situ leaching PE pipe and submersible pump or packer and application method of connecting device

Info

Publication number: CN104295821A
Application number: CN201410495750.0A
Authority: CN
Inventors: 杨立志; 胡柏石; 常京涛; 谭亚辉; 姜岩; 秦昊; 李晓剑
Original assignee: Beijing Research Institute of Chemical Engineering and Metallurgy of CNNC
Current assignee: Beijing Research Institute of Chemical Engineering and Metallurgy of CNNC
Priority date: 2014-09-24
Filing date: 2014-09-24
Publication date: 2015-01-21
Anticipated expiration: 2034-09-24
Also published as: CN104295821B

Abstract

The invention discloses a connecting device for an in-situ leaching PE pipe and a submersible pump or a packer. An inner pipe (1) is a hollow pipe, the section of the inner pipe is in the shape of a step, the bottom of the inner pipe (1) is fixed to a flange (5) in a welded mode, a coupling pipe (2) is a hollow pipe, the upper portion of the section of the coupling pipe is in the shape of a frustum, taper threads are formed in the side face of the upper portion of the coupling pipe, four grooves are evenly distributed in the side face of the upper portion of the coupling pipe, the inner diameter of the frustum portion of the coupling pipe (2) is matched with the outer diameter of a PE pipe (4), internal threads matched with external threads on the lower portion of the inner pipe (1) are formed in the lower portion of the coupling pipe (2), the shape of the inner side of an outer screw pipe (3) is matched with the frustum-shaped upper portion of the coupling pipe (2), and threads matched with the taper threads in the upper portion of the coupling pipe (2) are formed in the inner side of the outer screw pipe (3). The invention further discloses an application method of the connecting device. Through the connecting device for the in-situ leaching PE pipe and the submersible pump or the packer and the application method of the connecting device, the PE pipe can be connected with a rigid body, and in the aspect of in-situ leaching, the problem that cost is high because stainless steel pipes are adopted for communication between the packer or the submersible pump and the ground can be solved, and the cost of in-situ leaching is reduced.

Description

Soak by PE pipe and submersible pump or packet connection set and using method a kind ofly

Technical field

The invention belongs to mining using leaching technology PE pipe connection, be specifically related to soak by PE pipe and submersible pump or packet connection set and using method a kind ofly.

Background technique

Existing oil packet generally adopts pipe thread seal to be connected with steel pipe, and submersible pump adopts high pressure joint to connect PE pipe.Although above-mentioned packet is connected simply with tubing round thread, there is deficiency.Because packet is in acidity or alkaline environment, Stainless Steel Tube need be adopted to be connected with it, and cost is high; It is high that submersible pump connects required high pressure joint cost, and complex process.

Summary of the invention

The technical problem that patent of the present invention will solve is: conventional packer or submersible pump are communicated with ground and adopt Stainless Steel Tube cost high, adopt cheap PE pipe to solve and how to connect.

For the problems referred to above, technological scheme of the present invention is: soak with PE pipe and submersible pump or packet connection set a kind ofly, comprise interior pipe, narrow pipe and outer screwed pipe; Wherein, interior pipe is hollow tubular, and its interface is step-like, fixes bottom interior pipe with flange welding; Lower side has the outside thread be connected and fixed with the pipe that narrows; Interior pipe upper outside face has outside thread or more piece anti-slip tank; The pipe that narrows is hollow tubular, and its top, cross section is frustum type, and upper side has tapered thread, and is uniformly distributed 4 road grooves; The pipe frustum type internal diameter that narrows mates with PE pipe external diameter; The pipe bottom that narrows has the internal thread with interior pipe lower external thread coupling; Outer screwed pipe inner shape and the pipe top frustum type coupling that narrows, and have inside it and the screw thread of tapered thread coupling on the pipe top that narrows.

Described interior pipe, the pipe that narrows, outer screwed pipe material are stainless steel.

Above-mentioned leaching comprises the following steps with the using method of submersible pump or packet connection set with PE pipe a kind ofly:

Step 1, the pipe that will narrow successively, outer screwed pipe are enclosed within PE pipe;

Step 2, by PE pipe box outside interior pipe, the pipe that will narrow afterwards is connected with Internal Pipe Thread;

Step 3, screws outer screwed pipe narrowing on pipe, and when outer screwed pipe screws further, the pipe that narrows inwardly shrinks under stress, is compressed by PE pipe, makes it PE pipe be fixed on packet or submersible pump.

Use patent of the present invention can obtain following effect: by this connection set, PE pipe can be connected with rigid body, packet can be solved or submersible pump is communicated with the problem adopting Stainless Steel Tube cost high with ground in ground leaching, soak cost to reduction.

Accompanying drawing explanation

Fig. 1 is that PE of the present invention manages and rigid body connection set erection drawing.

Fig. 2 is the sectional drawing of interior pipe.

Fig. 3 is the right elevation of interior pipe.

Fig. 4 is the sectional drawing of pipe of narrowing.

Fig. 5 is the left view of pipe of narrowing.

Fig. 6 is the right elevation of pipe of narrowing.

Fig. 7 is the sectional view of outer screwed pipe.

Pipe in 1-, 2-narrows pipe, the outer screwed pipe of 3-, 4-PE pipe, 5-flange.

Embodiment

Below in conjunction with drawings and Examples, the present invention is described further.

Soak with PE pipe with submersible pump or a packet connection set, comprise stainless interior pipe 1, narrow pipe 2 and outer screwed pipe 3, wherein, interior pipe 1 is hollow tubular, and its interface is step-like, as shown in Figures 1 to 3, is welded and fixed bottom interior pipe 1 with flange 5; Lower side has the outside thread be connected and fixed with the pipe 2 that narrows; Interior pipe 1 upper outside face has outside thread or more piece anti-slip tank, plays and plays fixing anti-skidding effect with during PE pipe 4 close contact; Narrow pipe 2 as shown in figures 4-6, is hollow tubular, and its top, cross section is frustum type, and upper side has tapered thread, and is uniformly distributed 4 road grooves, and epimere becomes to narrow shape in its natural state; The pipe 2 frustum type internal diameter that narrows mates with PE pipe 4 external diameter; Pipe 2 bottom that narrows has the internal thread with interior pipe 1 lower external thread coupling; Outer screwed pipe is 3 inner shape and the pipe 2 top frustum type coupling that narrows as shown in Figure 7, and has inside it and the screw thread of tapered thread coupling on pipe 2 top that narrows.

Assemble sequence is: be enclosed within PE pipe 4 by outer screwed pipe 3, the pipe 2 that narrows, then PE pipe 4 is enclosed within outside interior pipe 1, the pipe 2 that will narrow afterwards is threaded with interior pipe 1, after this outer screwed pipe 3 screws narrowing on pipe 2, owing to being tapered thread, when outer screwed pipe 3 screws further, the pipe 2 that narrows inwardly shrinks under stress, PE pipe 4 is compressed, thus PE pipe 4 is fixed on packet or submersible pump.

For packet, first interior pipe 1 is connected with packet by flange 5, then be that the 40mm pipe 2 that narrows is enclosed within PE pipe 4 by outer screwed pipe 3, internal diameter, be 30mm by internal diameter afterwards, external diameter is that to be enclosed within external diameter be pipe 1 epimere in 30mm for the PE pipe 4 of 40mm, the pipe 2 that will narrow afterwards is threaded with interior pipe 1, after this outer screwed pipe 3 screws narrowing on pipe 2, owing to being tapered thread, when outer screwed pipe 3 screws further, the pipe 2 that narrows inwardly shrinks under stress, PE pipe 4 is compressed, thus PE pipe 4 is fixed on packet.

Above embodiments of the invention are explained in detail, above-mentioned mode of execution is only optimum embodiment of the present invention, but the present invention is not limited to above-described embodiment, in the ken that those of ordinary skill in the art possess, various change can also be made under the prerequisite not departing from present inventive concept.

Claims

1. ground leaching PE pipe and submersible pump or a packet connection set, is characterized in that comprising interior pipe (1), narrows pipe (2) and outer screwed pipe (3); Wherein, interior pipe (1) is hollow tubular, and its interface is step-like, and interior pipe (1) bottom is welded and fixed with flange (5); Lower side has manages the outside thread that (2) be connected and fixed with narrowing; Interior pipe (1) upper outside face has outside thread or more piece anti-slip tank; The pipe (2) that narrows is hollow tubular, and its top, cross section is frustum type, and upper side has tapered thread, and is uniformly distributed 4 road grooves; Pipe (2) the frustum type internal diameter that narrows is managed (4) external diameter and is mated with PE; Narrow pipe (2) bottom have with interior pipe (1) lower external thread coupling internal thread; Outer screwed pipe (3) inner shape and pipe (2) the top frustum type coupling that narrows, and have inside it and screw thread that the tapered thread on pipe (2) top that narrows mates.

2. to soak with PE pipe and submersible pump or packet connection set a kind ofly as claimed in claim 1, it is characterized in that interior pipe (1), the pipe (2) that narrows, outer screwed pipe (3) material be stainless steel.

3. soak the using method with PE pipe and submersible pump or packet connection set as claimed in claim 1, it is characterized in that comprising the following steps:

Step 1, the pipe (2) that will narrow successively, outer screwed pipe (3) are enclosed within PE pipe (4);

Step 2, PE pipe (4) is enclosed within interior pipe (1) outward, and the pipe (2) that will narrow afterwards is threaded with interior pipe (1);

Step 3, outer screwed pipe (3) is screwed narrowing on pipe (2), when outer screwed pipe (3) screws further, the pipe (2) that narrows inwardly shrinks under stress, PE pipe (4) is compressed, makes it PE pipe (4) be fixed on packet or submersible pump.