CN216341965U

CN216341965U - Concentric tube pressurization jet liquid drainage gas production mechanism

Info

Publication number: CN216341965U
Application number: CN202123416845.3U
Authority: CN
Inventors: 刘中敏; 张卫兵; 张立涛; 范春涛; 刘伟
Original assignee: Nanyang Tianda Tongxing Oil Technology Co ltd
Current assignee: Nanyang Tianda Tongxing Oil Technology Co ltd
Priority date: 2021-12-31
Filing date: 2021-12-31
Publication date: 2022-04-19
Anticipated expiration: 2031-12-31

Abstract

The utility model discloses a concentric tube pressurized jet liquid-discharging gas production mechanism which comprises a centralizer, wherein a supporting tube is mounted at the upper end of the centralizer, an outer tube is sleeved outside the supporting tube, an inner tube is arranged in the supporting tube, cavities are symmetrically arranged in the supporting tube in the left and right directions, through holes are symmetrically formed in the inner wall of the supporting tube in the left and right directions and communicated with the cavities, a moving plate is arranged in each cavity and is in sliding connection with the inner wall of each cavity, four fixing rods are symmetrically mounted in each moving plate, an inclined block is mounted at one end, close to the inner end, of each moving plate, and each inclined block penetrates through each through hole. According to the utility model, the lower end of the inner pipe is inserted into the supporting pipe, the inner pipe descends to abut against the supporting ring, the triangular clamping groove moves to the position of the inclined block, the inclined block loses thrust, and the inclined block is instantaneously clamped into the triangular clamping groove through the spring, so that the inner pipe and the supporting pipe are quickly connected, and the working efficiency is improved.

Description

Concentric tube pressurization jet liquid drainage gas production mechanism

Technical Field

The utility model relates to the field of drainage gas production, in particular to a concentric tube pressurization jet flow liquid drainage gas production mechanism.

Background

Drainage gas recovery is a measure for solving the problems of excessive accumulated liquid or water production of a gas well shaft and a stratum near the bottom of the gas well and recovering the normal production of the gas well, and is called 'drainage assistance' for short. Chinese patent discloses a continuous concentric tube pressurized jet liquid discharge gas production device (No. CN 212479181U), which can adjust the depth of a tool in a well according to the depth of the liquid level in the well, and prevent the situation that the tool is not lifted due to the liquid level; and the well head flow is simple, has reduced construction cost, but, its stay tube and inner tube pass through threaded connection, need twist a period of time, and the installation time is longer, and is inefficient. Therefore, one skilled in the art provides a concentric tube pressurized jet drainage gas production mechanism to solve the above problems in the background art.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problem, the utility model provides a concentric tube pressurized jet liquid drainage gas production mechanism which comprises a centralizer, wherein a supporting tube is arranged at the upper end of the centralizer, an outer tube is sleeved outside the supporting tube, an inner tube is arranged in the supporting tube, cavities are symmetrically arranged in the supporting tube in the left-right direction, through holes are symmetrically formed in the inner wall of the supporting tube in the left-right direction, and the through holes are communicated with the cavities;

a movable plate is arranged in the cavity and is in sliding connection with the inner wall of the cavity, four fixed rods are symmetrically arranged in the movable plate, an inclined block is arranged at one end, close to the inner end, of the movable plate, and the inclined block penetrates through the through hole;

springs are symmetrically arranged at one end, close to the outer side, of the movable plate and are fixedly connected with the cavity, throat pipe sections are symmetrically arranged at the upper portion of the inner wall of the inner pipe, a plurality of jet holes are formed in the side face of the inner pipe, and triangular clamping grooves are symmetrically formed in the side face of the inner pipe in a left-right mode.

Preferably: and a support ring is arranged on the inner wall of the support pipe.

Preferably: and the upper end of the support ring is provided with a sealing ring.

Preferably: the fixed rod is fixedly connected with the inner wall of the cavity.

Preferably: the fixed rod is connected with the moving plate in a sliding mode.

Preferably: alignment grooves are symmetrically formed in the front and back of the inner wall of the supporting pipe and penetrate through the upper end of the supporting pipe.

Preferably: the insertion blocks are symmetrically arranged in the front and the back of the side face of the inner pipe and correspond to the alignment grooves.

The utility model has the technical effects and advantages that:

according to the utility model, the lower end of the inner pipe is inserted into the supporting pipe, the side surface of the inner pipe extrudes the inclined block, the inclined block pushes the movable plate to move inwards, the spring is compressed, the inclined block is contracted into the cavity, the inner pipe continuously descends to abut against the supporting ring, the triangular clamping groove moves to the position of the inclined block, the inclined block loses thrust, and the spring is instantly clamped into the triangular clamping groove, so that the inner pipe and the supporting pipe are quickly connected, and the working efficiency is improved.

Drawings

FIG. 1 is a schematic structural diagram provided in example 1 of the present application;

FIG. 2 is a schematic structural view of a support tube provided in embodiment 1 of the present application;

FIG. 3 is a schematic structural view of an inner tube provided in example 1 of the present application;

FIG. 4 is a schematic structural diagram provided in example 2 of the present application;

in the figure:

1. a centralizer;

2. supporting a tube; 21. a cavity; 22. a through hole; 23. moving the plate; 24. fixing the rod; 25. a spring; 26. a sloping block; 27. a support ring; 28. aligning the groove;

3. an outer tube;

4. an inner tube; 41. a jet hole; 42. a throat section; 43. a triangular clamping groove; 44. and (5) inserting the blocks.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments. The embodiments of the present invention have been presented for purposes of illustration and description, and are not intended to be exhaustive or limited to the utility model in the form disclosed. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiment was chosen and described in order to best explain the principles of the utility model and the practical application, and to enable others of ordinary skill in the art to understand the utility model for various embodiments with various modifications as are suited to the particular use contemplated.

Example 1

Referring to fig. 1 to 3, in the present embodiment, a concentric tube pressurized jet liquid drainage and gas production mechanism is provided, which includes a centralizer 1, a support tube 2 is installed at an upper end of the centralizer 1, an outer tube 3 is sleeved outside the support tube 2, an inner tube 4 is installed inside the support tube 2, a support ring 27 is installed on an inner wall of the support tube 2, a seal ring is installed at an upper end of the support ring 27, a cavity 21 is symmetrically installed in the support tube 2, through holes 22 are symmetrically opened on an inner wall of the support tube 2, the through holes 22 communicate with the cavity 21, a movable plate 23 is installed inside the cavity 21, the movable plate 23 is slidably connected with an inner wall of the cavity 21, four fixed rods 24 are symmetrically installed inside the movable plate 23, the fixed rods 24 are fixedly connected with an inner wall of the cavity 21, the fixed rods 24 are slidably connected with the movable plate 23, an inclined block 26 is installed at an inner end of the movable plate 23, the inclined block 26 passes through the through holes 22, springs 25 are symmetrically installed at an outer end of the movable plate 23, and the springs 25 are fixedly connected with the cavity 21, throat sections 42 are symmetrically arranged on the upper portion of the inner wall of the inner pipe 4, a plurality of jet holes 41 are formed in the side face of the inner pipe 4, and triangular clamping grooves 43 are symmetrically formed in the left side face and the right side face of the inner pipe 4.

The working principle of the utility model is as follows: the lower end of the inner tube 4 is inserted into the support tube 2, the side face of the inner tube 4 extrudes the inclined block 26, the inclined block 26 pushes the moving plate 23 to move inwards, the moving plate 23 moves outside the fixed rod 24, the spring 25 is compressed, the inclined block 26 is contracted into the cavity 21, the inner tube 4 continuously descends to abut against the support ring 27, the triangular clamping groove 43 moves to the position of the inclined block 26, the inclined block 26 loses thrust, and the spring 25 is clamped into the triangular clamping groove 43 instantly, so that the inner tube 4 is quickly connected with the support tube 2.

Example 2

Referring to fig. 4, in the present embodiment, alignment slots 28 are symmetrically formed in the front and rear of the inner wall of the support tube 2, the alignment slots 28 penetrate through the upper end of the support tube 2, insertion blocks 44 are symmetrically installed in the front and rear of the side surface of the inner tube 4, the insertion blocks 44 correspond to the alignment slots 28, and when the inner tube 4 is inserted into the support tube 2, the insertion blocks 44 are inserted into the alignment slots 28, so that the inner tube is quickly aligned with the positions of the triangular clamping grooves 43 and the inclined blocks 26.

It is to be understood that the described embodiments are merely a few embodiments of the utility model, and not all embodiments. All other embodiments, which can be derived by one of ordinary skill in the art and related arts based on the embodiments of the present invention without any creative effort, shall fall within the protection scope of the present invention. Structures, devices, and methods of operation not specifically described or illustrated herein are generally practiced in the art without specific recitation or limitation.

Claims

1. A concentric tube pressurization jet liquid drainage gas production mechanism comprises a centralizer (1) and is characterized in that a supporting tube (2) is mounted at the upper end of the centralizer (1), an outer tube (3) is sleeved outside the supporting tube (2), an inner tube (4) is arranged in the supporting tube (2), cavities (21) are symmetrically arranged in the supporting tube (2) left and right, through holes (22) are symmetrically formed in the inner wall of the supporting tube (2) left and right, and the through holes (22) are communicated with the cavities (21);

a moving plate (23) is arranged in the cavity (21), the moving plate (23) is in sliding connection with the inner wall of the cavity (21), four fixed rods (24) are symmetrically arranged in the moving plate (23), an inclined block (26) is arranged at one end, close to the inner side, of the moving plate (23), and the inclined block (26) penetrates through the through hole (22);

springs (25) are symmetrically arranged at one end, close to the outside, of the movable plate (23), the springs (25) are fixedly connected with the cavity (21), throat pipe sections (42) are symmetrically arranged at the upper portion of the inner wall of the inner pipe (4), a plurality of jet holes (41) are formed in the side face of the inner pipe (4), and triangular clamping grooves (43) are symmetrically formed in the side face of the inner pipe (4) in the left-right mode.

2. The concentric tube pressurized jet drainage gas recovery mechanism according to claim 1, wherein the support ring (27) is mounted on the inner wall of the support tube (2).

3. The concentric tube pressurized jet drainage gas recovery mechanism according to claim 2, characterized in that the upper end of the support ring (27) is provided with a sealing ring.

4. The concentric tube pressurized jet liquid discharge gas recovery mechanism as claimed in claim 1, wherein the fixing rod (24) is fixedly connected to the inner wall of the chamber (21).

5. The concentric tube pressurized jet liquid discharge gas recovery mechanism according to claim 1, wherein the fixed rod (24) and the moving plate (23) are slidably connected.

6. The concentric tube pressurized jet liquid discharge gas recovery mechanism according to claim 1, wherein the inner wall of the support tube (2) is symmetrically provided with alignment grooves (28) in front and back, and the alignment grooves (28) penetrate through the upper end of the support tube (2).

7. The concentric tube pressurized jet liquid discharge gas recovery mechanism according to claim 1, wherein the inner tube (4) is provided with the insertion blocks (44) symmetrically in front and back directions on the side surface, and the insertion blocks (44) are correspondingly aligned with the grooves (28).