Middle-deep layer interference-free geothermal well casing pipe sealing assembly

Abstract

A middle-deep layer interference-free geothermal well casing pipe sealing assembly comprises a first casing pipe and a second casing pipe, flange plates are arranged on the outer pipe walls of the ends of the first casing pipe and the second casing pipe, at least two sets of installation grooves are evenly formed in the flange plates, fixing structures are arranged in the installation grooves and used for fixing the first casing pipe and the second casing pipe, and a sealing structure is arranged between the first casing pipe and the second casing pipe. According to the fixing structure, the positions of the first sleeve and the second sleeve can be fixed, and installation is convenient and fast; the sealing structure improves the sealing performance between the first sleeve and the second sleeve, and the service life of the first sleeve and the service life of the second sleeve are prolonged.

Description

TECHNICAL FIELD

[0001] The utility model relates to casing seal technical field, concretely is a kind of middle-deep layer interference-free geothermal well casing sealing assembly. BACKGROUND

[0002] Geothermal well is the deep well drilled for exploiting geothermal resources, mainly used for extracting underground hot water or hot steam. They can be divided into exploration wells, production wells, recharge wells and other types, with the characteristics of high efficiency, environmental protection and sustainable use. The structure of geothermal well includes well hole, well wall and wellhead device, which can provide heat energy for heating, spa, industrial use and power generation. The current geothermal well casing sealing structure is sealed by rotating and installing through threads.

[0003] But the traditional sealing assembly is often installed by fixed fixed bolt, which is time-consuming and laborious, causing inconvenience during installation, and the traditional sealing assembly is often simple in structure, which can easily cause firm sealing in geothermal well, so that relatively humid water vapor enters the inside of the casing, therefore, a kind of middle-deep layer interference-free geothermal well casing sealing assembly is needed to solve the above problems. SUMMARY

[0004] The utility model discloses a kind of middle-deep layer interference-free geothermal well casing sealing assembly, to solve the problem raised in above background technique. To achieve the above purpose, the utility model provides the following technical scheme: a kind of middle-deep layer interference-free geothermal well casing sealing assembly, including casing one, casing two, flange plate is set up on the outer tube wall of casing one, casing two end portion, at least two groups of installation slot are uniformly processed on flange plate, fixed structure is set in installation slot for fixed casing one, casing two, sealing structure is set between casing one and casing two.

[0005] The fixed structure of the utility model is: pivot is rotationally arranged in the installation slot of one of casing, and can be vertically rotated relative to installation slot, fixed rod is vertically arranged on pivot, threaded rod is arranged on the top of fixed rod, and threaded rod cooperates with handle.

[0006] The utility model discloses that threaded rod is provided with limit plate, limit plate is located in the lower part of handle, and the bottom end of limit plate is abutted on the flange plate of casing one when fastening.

[0007] The handle of the utility model is hexagonal handle, and threaded through hole is processed in the middle part and anti-skid coating is arranged on the surface.

[0008] The middle part of the limit plate of the utility model is processed with round hole, and the diameter of round hole is greater than the outer diameter of threaded rod.

[0009] The utility model discloses a sleeve one pipe wall end portion is provided with threaded pipe, clamping groove no. one, clasp no. one from inside to outside in proper order, and the sleeve no. two inner pipe wall is processed with the outer thread that threaded pipe is matched, and the sleeve no. two end portion is provided with clasp no. two, clamping groove no. two from inside to outside in proper order, and clamping groove no. one is matched with clasp no. two, and clamping groove no. two is matched with clasp no. one.

[0010] The utility model discloses a clasp no. one and clasp no. two top are provided with rubber pad no. two, and clamping groove no. one and clamping groove no. two inner bottom are provided with rubber pad no. one.

[0011] Compared with the prior art, the utility model discloses the beneficial effects are:

[0012] 1, the utility model discloses a fixed structure is set up, when needing to fix sleeve no. one and sleeve no. two, rotate sleeve no. one, make threaded pipe spin into sleeve no. two, and fix sleeve no. one and sleeve no. two preliminarily, rotate fixed link, make fixed link drive pivot rotation, make the limiting board be located sleeve no. one's flange top, rotate the handle, make the handle move down, and the handle drives the limiting board to move down, and make the limiting board be tightly resisted on the frame of sleeve no. one, thereby fix the position of sleeve no. one and sleeve no. two, and the fixed structure can fix the position of sleeve no. one and sleeve no. two, and the installation is convenient and quick, and compared with traditional fixed bolt, convenient to use.

[0013] 2, the utility model discloses a sealing structure is set up, when threaded pipe spins into sleeve no. two, simultaneously, clasp no. one will insert into clamping groove no. two, and clasp no. two will insert into clamping groove no. one, and the joint is sealed to the sealing structure through rubber pad no. one and rubber pad no. two, and the sealing structure improves the leakproofness between sleeve no. one and sleeve no. two, makes it not easy to appear the air leakage, avoids the water gas erosion of pipe conductor, prolongs sleeve no. one and sleeve no. two service life. ACCURATE DRAWING

[0014] Figure 1 It is the front perspective schematic diagram of the utility model;

[0015] Figure 2 It is the schematic diagram when the utility model is disassembled;

[0016] Figure 3 It is the front cross section schematic diagram of the utility model;

[0017] Figure 4 It is the fixed structure explosion structure schematic diagram of the utility model;

[0018] Figure 5 It is the sealing structure schematic diagram of the utility model.

[0019] As shown in the figure: 1, sleeve one; 11, card slot one; 12, clasp one; 13, threaded pipe; 2, sleeve two; 21, card slot two; 22, clasp two; 3, fixed structure; 31, rotating shaft; 32, fixed rod; 33, threaded rod; 34, handle; 35, limiting plate; 4, sealing structure; 41, rubber pad one; 42, rubber pad two; 5, flange; 51, mounting groove. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0021] As Figures 1-5 shown, the utility model relates to a kind of middle-deep layer interference-free geothermal well sleeve sealing assembly, including sleeve one 1, sleeve two 2, sleeve one 1, sleeve two 2 end outer pipe wall are all provided with flange 5, at least two groups of mounting grooves 51 are uniformly processed on flange 5, fixed structure 3 is arranged in mounting groove 51 for fixing sleeve one 1, sleeve two 2, the fixed structure 3 of the embodiment is connected by rotating shaft 31;Fixed rod 32, threaded rod 33, handle 34, limiting plate 35;Rotating shaft hole is horizontally processed in the two sides of the mounting groove 51 of one flange 5, rotating shaft hole is processed in the mounting groove 51 of sleeve two 2 in the embodiment, rotating shaft 31 is horizontally arranged in rotating shaft hole, and can be vertically rotated relative to mounting groove 51, fixed rod 32 is vertically arranged on rotating shaft 31, threaded rod 33 is arranged on the top of fixed rod 32, threaded rod 33 is matched with handle 34, rotating handle 34 makes it move downward, is fastened in the top of the flange 5 of sleeve one 1, fixes sleeve one 1 and sleeve two 2, in actual operation, limiting plate 35 can be arranged on threaded rod 33, limiting plate 35 is located in the lower part of handle 34, round hole is processed in the middle part of limiting plate 35, and the diameter of round hole is greater than the outer diameter of threaded rod 33, to facilitate the up-and-down movement of limiting plate 35 relative to threaded rod 33, the bottom end of limiting plate 35 is abutted on the flange 5 of sleeve one 1 when fastening.Handle 34 is hexagonal handle, middle part is processed with threaded hole and surface is provided with anti-slip coating.

[0022] In order to make the connection of the sleeve one 1 and the sleeve two 2 more stable, the end of the sleeve one 1 is provided with a threaded pipe 13, a clamping groove one 11 and a clamping ring one 12 from inside to outside, the inner wall of the sleeve two 2 is provided with external threads matched with the threaded pipe 13, the end of the sleeve two 2 is provided with a clamping ring two 22 and a clamping groove two 21 from inside to outside, the clamping groove one 11 is matched with the clamping ring two 22, and the clamping groove two 21 is matched with the clamping ring one 12. In order to ensure the sealing, the top of the clamping ring one 12 and the clamping ring two 22 is provided with a rubber pad two 42, the inner bottom of the clamping groove one 11 and the clamping groove two 21 is provided with a rubber pad one 41, when the sleeve one 1 and the sleeve two 2 are fixed, the rubber pad can effectively improve the sealing, so that it is not easy to leak, the conductor in the pipe is not easy to be eroded by water, and the service life of the sleeve one 1 and the sleeve two 2 is prolonged.

[0023] Working principle:

[0024] In use, when the sleeve one 1 and the sleeve two 2 need to be fixed, the threaded pipe 13 is screwed into the sleeve two 2 to preliminarily fix the sleeve one 1 and the sleeve two 2, the fixed rod 32 is rotated to drive the rotating shaft 31 to rotate, so that the limiting plate 35 is located at the top of the flange plate of the sleeve one 1, the handle 34 is rotated to move downward, the handle 34 drives the limiting plate 35 to move downward, so that the limiting plate 35 abuts against the frame of the sleeve one 1, thereby fixing the position of the sleeve one 1 and the sleeve two 2, when the threaded pipe 13 is screwed into the sleeve two 2, the clamping ring one 12 is inserted into the clamping groove two 21, and the clamping ring two 22 is inserted into the clamping groove one 11, the contact surface compresses the rubber pad to seal the joint, thereby improving the sealing between the sleeve one 1 and the sleeve two 2.

Claims

1. A mid-deep, non-intrusive geothermal well casing seal assembly, characterized by: The utility model provides a kind of fixed structure and sealing structure of double casing, including sleeve one (1), sleeve two (2), sleeve one (1), sleeve two (2) end outer pipe wall are provided with flange (5), flange (5) are uniformly distributed at least two groups of installation slot (51) are processed, fixed structure (3) are arranged in installation slot (51) for fixed sleeve one (1), sleeve two (2), sleeve one (1) and sleeve two (2) are provided with sealing structure (4).

2. A medium-depth non-interference geothermal well casing-sealing assembly according to claim 1, characterized in that The fixed structure (3) is: the rotating shaft (31) is rotatably arranged in the installation slot (51) of one of the sleeves, and can rotate vertically relative to the installation slot (51), the fixed rod (32) is vertically arranged on the rotating shaft (31), the threaded rod (33) is arranged on the top of the fixed rod (32), and the threaded rod (33) is matched with the handle (34).

3. A medium-depth non-intrusive geothermal well casing seal assembly according to claim 2, characterized in that: The threaded rod (33) is provided with a limiting plate (35), and the limiting plate (35) is located below the handle (34). When fastening, the bottom end of the limiting plate (35) abuts against the flange (5) of the sleeve one (1).

4. A medium-depth non-intrusive geothermal well casing seal assembly according to claim 2, characterized in that: The handle (34) is a hexagonal handle, and a threaded through hole is formed in the middle portion and an anti-slip coating is arranged on the surface.

5. A medium-depth, non-interference geothermal well casing-sealing assembly according to claim 3, characterized in that: The limiting plate (35) is provided with a circular hole in the middle portion, and the diameter of the circular hole is greater than the outer diameter of the threaded rod (33).

6. A medium-depth non-interference geothermal well casing-sealing assembly according to claim 1, characterized in that The end portion of the sleeve one (1) is provided with a threaded pipe (13), a clamping groove one (11) and a clamping ring one (12) from inside to outside in sequence, the inner pipe wall of the sleeve two (2) is provided with an external thread matched with the threaded pipe (13), the end portion of the sleeve two (2) is provided with a clamping ring two (22) and a clamping groove two (21) from inside to outside in sequence, the clamping groove one (11) is matched with the clamping ring two (22), and the clamping groove two (21) is matched with the clamping ring one (12).

7. A medium-depth non-intrusive geothermal well casing seal assembly according to claim 6, characterized in that: The clamping ring one (12) and the clamping ring two (22) are provided with rubber pads two (42) on the top, and the clamping groove one (11) and the clamping groove two (21) are provided with rubber pads one (41) on the bottom.

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