CN110842528A - Special external member is dismantled to deep-well pump threaded connection pipe - Google Patents

Abstract

The invention provides a special assembly for disassembling a threaded connecting pipe of a deep well pump, which comprises a support frame (3) and two clamping frames, wherein the support frame (3) is used for being placed on the ground of a well head, the two clamping frames are respectively used for clamping two adjacent sections of threaded connecting pipes, and the clamping frame positioned below is placed on the support frame (3); the clamping frame comprises a connecting plate (1) and two clamping arms (2), one ends of the two clamping arms (2) are hinged to the connecting plate (1) respectively, the other ends of the two clamping arms are locked through detachable connecting pieces, each clamping arm (2) comprises a clamping rod (21) and a clamping piece (22) with an inner surface being arc-shaped, the two clamping pieces (22) are opposite, and friction grains are arranged on the inner surface of each clamping piece (22). It has the advantages of simple structure, small occupied space and convenient use.

Description

A special kit for disassembling the threaded connection pipe of a deep well pump

technical field

The invention relates to the field of pipeline disassembly, in particular to a special kit for disassembling a threaded connection pipe of a deep well pump.

Background technique

The pipeline from the deep well pump to the ground is composed of multi-section steel pipes, and the steel pipes are connected by threads. When overhauling the deep well pump, the pipeline needs to be lifted and disassembled section by section. Due to the large diameter of the pipeline, there are few large pipe wrenches used together, and the large pipe wrench is heavy, making it difficult for maintenance personnel to operate and use; The deep well pump fell into the bottom of the well. If a truck crane is used to hoist the deep well pump together with the pipeline as a whole, because the pipeline is long, a truck crane with a larger tonnage needs to be rented, which occupies a large maintenance site and has high rental costs. It is not suitable for a deep well pump with a small maintenance site.

In order to solve the above problems, we have been looking for an ideal technical solution.

SUMMARY OF THE INVENTION

The purpose of the present invention is to aim at the deficiencies of the prior art, so as to provide a special kit for disassembling a threaded connection pipe of a deep well pump with a simple structure, small occupied space and convenient use.

The technical scheme adopted by the present invention is as follows: A special kit for disassembling a threaded connection pipe of a deep well pump, which includes a support frame and two clamping frames. Two adjacent sections of threaded connection pipes, wherein the clamping frame located below is placed on the support frame. The lower clamping frame is placed on the support frame and bears the weight of the deep well pump and the pipeline. Rotate the upper clamping frame to unscrew the threaded connection between the two pipelines.

The clamping frame includes a connecting plate and two clamping arms. One end of the two clamping arms is hinged with the connecting plate respectively, and the other end is locked by a detachable connecting piece. Each clamping arm includes a holding rod and an arc-shaped inner surface. The two clamping parts are respectively fixedly connected with the clamping arms, the two clamping parts form a hoop, the diameter of the hoop is adapted to the diameter of the pipe, and the inner surface of the clamping parts is provided with friction lines. When the clamping frame is in use, unscrew the two clamping arms to clamp the pipe between the two clamping parts, and then use detachable connectors such as hasps, screws, bolts, etc. to lock the other ends of the two clamping arms to clamp the pipe. Clamp tight.

As a further improvement of the technical solution, the other ends of the two clamping arms are locked by screws. The other ends of the two clamping arms are respectively provided with threaded holes, which are locked by the screw rod; the screw rod can also be connected with two locking nuts, the locking effect is good, the structure is simple, and the use is convenient.

As a further improvement of the technical solution, the support frame is provided with a slot for placing two holding rods corresponding to the clamping frame, so as to limit the position of the clamping frame and prevent the clamping frame from moving.

Compared with the prior art, the present invention has the following beneficial effects:

Two clamping frames and one supporting frame are adopted to disassemble the pipeline, the structure is simple, the use is convenient, and the space is occupied less.

Description of drawings

Figure 1 is a schematic structural diagram of the present invention.

In the figure, 1. connecting plate, 2. clamping arm, 21. holding rod, 22. clamping piece, 3. supporting frame, 4. screw rod.

Detailed ways

The technical solutions of the present invention will be further described in detail below through specific embodiments.

As shown in Figure 1, a special kit for disassembling the threaded connection pipe of a deep well pump includes a supporting frame 3 and two clamping frames. The supporting frame 3 is used to be placed on the wellhead ground, and the two clamping frames are used for clamping Hold two adjacent sections of threaded connection pipes, wherein the clamping frame located below is placed on the support frame 3; the clamping frame includes a connecting plate 1 and two clamping arms 2, one end of the two clamping arms 2 is respectively connected to the supporting frame 3. The connecting plate 1 is hinged, and the other ends of the two clamping arms 2 are respectively provided with threaded holes, which are locked by the screw rod 4, and two locking nuts are also connected to the screw rod.

Each clamping arm 2 includes a holding rod 21 and a clamping member 22 whose inner surface is arc-shaped. The support frame 3 is provided with a slot for accommodating two holding rods 21 corresponding to the clamping frame. The two clamping members 22 are opposed to each other, and the inner surfaces of the clamping members 22 are provided with friction lines.

In the specific implementation, the upper and lower directions are the descriptions of the relative positions of the structures in the drawings, and the direction perpendicular to the paper surface of FIG. 1 is the main view direction.

Instructions:

1. Set the support frame 3 above the wellhead, hang the chain hoist on the support frame 3, hoist the pipeline together with the deep well pump with the hand chain hoist, and use two clamping frames to hold them from top to bottom. The first section of pipeline and the second section of pipeline are installed, and the clamping frame holding the second section of pipeline is placed on the support frame 3, and its holding rod 21 is clamped into the corresponding slot of the support frame 3.

2. Two operators respectively hold the holding rod 21 of the clamping frame on the first section of the pipeline and rotate it, remove the first section of the pipeline from the pipeline, and then remove the clamping frame on the first section of the pipeline. When rotating the pipeline, if the diameter of the pipeline is small, one operator can operate it; if the diameter of the pipeline is large, additional operators can be added to support the clamping frame or the supporting frame placed on the supporting frame to prevent the supporting frame Stressful activity.

3. Lift the remaining pipeline up with a hand hoist, so that the clamping frame originally placed on the support frame 3 moves up with the second section of the pipeline, and the clamping frame removed in step 2 clamps the third section of the pipeline And placed on the support frame, and so on and so forth, until the downhole pipeline is dismantled.

Finally it should be noted that: the above embodiment is only used to illustrate the technical scheme of the present invention and not to limit it; although the present invention has been described in detail with reference to the preferred embodiment, those of ordinary skill in the art should understand that it is still possible to The specific embodiments of the invention are modified or some technical features are equivalently replaced; without departing from the spirit of the technical solutions of the present invention, all of them should be included in the scope of the technical solutions claimed in the present invention.

Claims (3)

1. A special kit for disassembling a threaded connection pipe of a deep well pump, characterized in that it comprises a support frame (3) and two clamping frames, the supporting frame (3) is used to be placed on the ground of the wellhead, and the two clamping frames They are respectively used to clamp two adjacent sections of threaded connection pipes, wherein the clamp frame located below is placed on the support frame (3); The clamping frame includes a connecting plate (1) and two clamping arms (2), one end of the two clamping arms (2) is hinged with the connecting plate (1) respectively, the other end is locked by a detachable connecting piece, each The clamping arm (2) includes a holding rod (21) and a clamping piece (22) with an arcuate inner surface, the two clamping pieces (22) are opposite to each other, and the inner surface of the clamping piece (22) is provided with friction lines. 2 . The special kit for disassembling the threaded connection pipe of a deep well pump according to claim 1 , wherein the other ends of the two clamping arms ( 2 ) are locked by the screw rod ( 4 ). 3 . 3 . The special kit for disassembling the threaded connection pipe of a deep well pump according to claim 1 , characterized in that, corresponding to the clamping frame, the support frame ( 3 ) is provided with a clamping slot for placing two holding rods ( 21 ).

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