Water stop device of deep brine well

By employing a dual-stopping method, utilizing a combination of expansion sealing strips and fixing rings, the corrosion problem of sealing materials in brine wells during prolonged use is solved, achieving efficient sealing and water quality separation in brine wells.

CN223549236UActive Publication Date: 2025-11-14CHAIDAMU COMPREHENSIVE GEOLOGICAL AND MINERAL EXPLORATION INSTITUTE OF QINGHAI PROVINCE (QINGHAI SALT LAKE GEOLOGICAL SURVEY INSTITUTE)
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Patent Information

Application Number
CN202520126734.8
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-01-20
Publication Date
2025-11-14
Estimated Expiration
2035-01-20

AI Technical Summary

Technical Problem

Existing brine well sealing devices, due to the chemical properties of brine being different from normal water, are prone to corrosion of single sealing materials during long-term use, resulting in poor sealing performance.

Method used

A dual water-stopping method is adopted, which combines an expansion water-stop strip and a fixing ring. The expansion water-stop strip expands when it comes into contact with water and fits tightly against the well wall. Combined with the sealing block fitting against the inner wall of the variable diameter water-stop pipe, a dual water-stopping effect is achieved.

Benefits of technology

It effectively prevents water seepage between upper and lower layers, improves the water-stopping effect, ensures water separation, and enhances the corrosion resistance and sealing performance of the water-stopping device.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of brine well water stopping, and discloses a water stopping device of a deep brine well, which comprises an upper pipe, a lower pipe and variable-diameter water stopping pipes, the upper pipe, the variable-diameter water stopping pipes and the lower pipe are sequentially arranged, and the variable-diameter water stopping pipes are arranged on the opposite sides of the upper pipe and the lower pipe; a first water stop assembly is arranged between the upper pipe and the reducing water stop pipe and comprises a first fixing ring, the outer surface of the first fixing ring is welded to the outer surface of the upper pipe, a first expansion water stop strip is arranged on the side edge of the first fixing ring, and the first expansion water stop strip is connected with the outer surface of the upper pipe in a winding mode. According to the water stopping device of the deep brine well, water stopping is conducted by sealing the connecting positions between the upper pipe and the variable-diameter water stopping pipe and between the lower pipe and the variable-diameter water stopping pipe, water stopping is conducted between the outer side of the variable-diameter water stopping pipe and the well wall, the water stopping effect of the water stopping device is improved in a double-water-stopping mode, and the situation that upper-layer water and lower-layer water permeate mutually is avoided; the water quality is effectively guaranteed to be distinguished.
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Description

Technical Field

[0001] This utility model relates to the field of brine well water-stopping technology, specifically a water-stopping device for deep brine wells. Background Technology

[0002] Brine wells, containers for storing sea salt brine, are typically placed near ash pits at the edge of the quarry for open-air brine storage. The wells are cylindrical, about ten feet in diameter and six feet deep, constructed with turf. A sturdy brine-carrying channel is built along the side of the well closest to the brine pool, leading directly to the pool. Once brine is in the well, it can be pumped into the channel using buckets and stored in the pool. Brine is highly mineralized water and is often used to extract certain chemical raw materials, such as salt, iodine, boron, and bromine.

[0003] Existing brine wells include pipe laying, water sealing, and well flushing. Water sealing achieves the desired water sealing effect through the combination of water sealing materials and variable diameter water sealing pipes.

[0004] Most existing water-stopping methods involve using a water-stopping material in combination with a variable-diameter water-stopping pipe. However, because the chemical properties of brine are different from those of normal water, a single water-stopping material can be corroded by the brine during long-term use, thus affecting the water-stopping effect.

[0005] Therefore, it is necessary to propose a water-stopping device for deep brine wells. Utility Model Content

[0006] To address the shortcomings of existing technologies, this utility model provides a water-stopping device for deep brine wells, which has the advantage of being able to improve the water-stopping effect through the combined use of dual water-stopping methods, thus solving the problems mentioned in the background technology.

[0007] This utility model provides the following technical solution: a water-stopping device for deep brine wells, comprising an upper pipe, a lower pipe, and a reducing water-stopping pipe:

[0008] The upper pipe, the variable diameter waterstop pipe and the lower pipe are arranged in sequence, and the variable diameter waterstop pipes are arranged on opposite sides of the upper pipe and the lower pipe.

[0009] A water-stop component one is provided between the upper pipe and the variable diameter water-stop pipe. The water-stop component one includes a fixing ring one, the outer surface of which is welded to the outer surface of the upper pipe. An expansion water-stop strip one is provided on the side of the fixing ring one, and the expansion water-stop strip one is wound and connected to the outer surface of the upper pipe. An expansion water-stop strip two is provided on the other side of the expansion water-stop strip one, and the expansion water-stop strip two is wound and connected to the outer surface of the variable diameter water-stop pipe. A movable ring one is provided on the other side of the expansion water-stop strip two, and the outer surface of the movable ring one is movably connected to the outer surface of the variable diameter water-stop pipe. A water-stop component two is provided between the lower pipe and the variable diameter water-stop pipe. The water-stop component one and the water-stop component two have the same structure. A discharge port two is opened on the inner wall of the variable diameter water-stop pipe. A sealing block is attached to the inner wall of the variable diameter water-stop pipe, and a discharge port one is opened on the sealing block.

[0010] Preferably, the second water-stop component includes a second fixed ring, the outer surface of which is welded to the outer surface of the lower pipe. An expansion water-stop strip fourth is provided on the side of the second fixed ring, which is wound and connected to the outer surface of the lower pipe. An expansion water-stop strip third is provided on the other side of the fourth expansion water-stop strip, which is wound and connected to the outer surface of the variable diameter water-stop pipe. A second movable ring second is provided on the other side of the third expansion water-stop strip, and the outer surface of the second movable ring second is movably connected to the outer surface of the variable diameter water-stop pipe.

[0011] Preferably, the first expansion waterstop strip and the first fixing ring are connected by waterproof sealant, and the second expansion waterstop strip and the first movable ring are connected by waterproof sealant.

[0012] Preferably, the expansion waterstop strip three and the movable ring two are connected by waterproof sealant, and the expansion waterstop strip four and the fixed ring two are connected by waterproof sealant.

[0013] Preferably, both discharge port 2 and discharge port 1 are provided with four sets, and the four sets of discharge port 2 and discharge port 1 are arranged around the axis of the variable diameter waterstop pipe.

[0014] Preferably, a threaded connection hole is provided at the middle position of the sealing block, and the interior of the threaded connection hole is threadedly connected to the outer surface of the drill rod.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] This deep brine well water-stopping device works by installing water-stopping component one at the connection between the upper pipe and the reducing water-stopping pipe, and water-stopping component two at the connection between the lower pipe and the reducing water-stopping pipe. Due to the principle of water expansion, the volumes of water-stopping strips one, two, three, and four increase. At this point, the drill rod connects to the sealing block via a threaded connection hole, driving the sealing block into the interior of the reducing water-stopping pipe and fitting against its inner wall. The discharge port one on the sealing block and the discharge port two on the reducing water-stopping pipe then overlap, allowing the fluid-filled water-stopping material to flow through discharge ports one and two. The process involves moving the drill rod to the outer surface of the variable diameter stop pipe until the space between the outer surface of the stop pipe and the well wall is filled. Simultaneously, the first and second movable rings are pushed to ensure that the adjacent sets of expansion stop strips are tightly fitted together, and the expansion stop strips are also tightly fitted to the well wall. After the grouting is completed, the sealing block is moved away from the interior of the variable diameter stop pipe by the drill rod, thereby achieving the water-stopping effect. This structure achieves water-stopping by sealing the connection between the upper pipe and the variable diameter stop pipe, and between the lower pipe and the variable diameter stop pipe, as well as by sealing the space between the outer surface of the variable diameter stop pipe and the well wall. This dual water-stopping method improves the water-stopping effect and prevents the upper and lower layers of water from seeping into each other, effectively ensuring the differentiation of water quality. Attached Figure Description

[0017] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the overall structure of the device of this utility model;

[0019] Figure 2 This utility model Figure 1 Cross-sectional structural diagram;

[0020] Figure 3 This is a schematic diagram of the variable diameter waterstop pipe of this utility model.

[0021] The attached diagram lists the components represented by each number as follows:

[0022] 1. Top tube;

[0023] 2. Lowering the pipe;

[0024] 3. Reducing waterstop pipe; 310. Sealing block; 320. Discharge port one; 330. Discharge port two; 340. Threaded connection hole;

[0025] 4. Water-stopping component one; 410. Fixed ring one; 420. Expandable water-stopping strip one; 430. Expandable water-stopping strip two; 440. Movable ring one;

[0026] 5. Water-stopping component two; 510. Movable ring two; 520. Expandable water-stopping strip three; 530. Expandable water-stopping strip four; 540. Fixed ring two. Detailed Implementation

[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0028] Please see Figure 1 , Figure 2 and Figure 3 A water-stopping device for a deep brine well includes an upper pipe 1, a lower pipe 2, and a reducing water-stopping pipe 3.

[0029] The upper pipe 1, the reducing water stop pipe 3 and the lower pipe 2 are installed in sequence, and the reducing water stop pipe 3 is installed on the opposite side of the upper pipe 1 and the lower pipe 2.

[0030] A water-stop assembly 4 is installed between the upper pipe 1 and the reducing water-stop pipe 3. The water-stop assembly 4 includes a fixing ring 410, the outer surface of which is welded to the outer surface of the upper pipe 1. An expansion water-stop strip 420 is installed on the side of the fixing ring 410, and is wound around the outer surface of the upper pipe 1. An expansion water-stop strip 430 is installed on the other side of the expansion water-stop strip 420, and is wound around the outer surface of the reducing water-stop pipe 3. A movable ring 440 is installed on the other side of the expansion water-stop strip 430, and its outer surface is movably connected to the outer surface of the reducing water-stop pipe 3. A water-stop assembly 5 is installed between the lower pipe 2 and the reducing water-stop pipe 3. The connection between the water-stop assembly 4 and the water-stop assembly 5... The structure is consistent. The inner wall of the variable diameter waterstop pipe 3 is provided with a discharge port 2 330. The inner wall of the variable diameter waterstop pipe 3 is attached with a sealing block 310. The sealing block 310 is provided with a discharge port 1 320. The waterstop component 2 5 includes a fixing ring 2 540. The outer surface of the fixing ring 2 540 is welded to the outer surface of the lower pipe 2. An expansion waterstop strip 4 530 is provided on the side of the fixing ring 2 540. The expansion waterstop strip 4 530 is wrapped and connected to the outer surface of the lower pipe 2. An expansion waterstop strip 3 520 is provided on the other side of the expansion waterstop strip 4 530. The expansion waterstop strip 3 520 is wrapped and connected to the outer surface of the variable diameter waterstop pipe 3. A movable ring 2 510 is provided on the other side of the expansion waterstop strip 3 520. The outer surface of the movable ring 2 510 is movably connected to the outer surface of the variable diameter waterstop pipe 3.

[0031] By installing water-stop component 1 4 at the connection between the upper pipe 1 and the reducing water-stop pipe 3, and by installing water-stop component 2 5 at the connection between the lower pipe 2 and the reducing water-stop pipe 3, the volume of the expanding water-stop strips 1 420, 2 430, 3 520 and 4 530 increases due to the principle of expansion upon contact with water, thereby sealing the connection between the upper pipe 1, the lower pipe 2 and the reducing water-stop pipe 3.

[0032] As a preferred technical solution of this utility model, the expansion waterstop strip 420 and the fixed ring 410 are connected by waterproof sealant, the expansion waterstop strip 430 and the movable ring 440 are connected by waterproof sealant, the expansion waterstop strip 520 and the movable ring 510 are connected by waterproof sealant, and the expansion waterstop strip 530 and the fixed ring 540 are connected by waterproof sealant.

[0033] As a preferred technical solution of this utility model, both the second discharge port 330 and the first discharge port 320 are provided with four sets, and the four sets of the second discharge port 330 and the first discharge port 320 are arranged around the axis of the variable diameter waterstop pipe 3.

[0034] As a preferred technical solution of this utility model, a threaded connection hole 340 is provided in the middle of the sealing block 310, and the interior of the threaded connection hole 340 is threadedly connected to the outer surface of the drill rod.

[0035] During further water sealing, the drill rod is connected to the sealing block 310 via the threaded connection hole 340 through a threaded connection, and the sealing block 310 is driven into the interior of the variable diameter water sealing pipe 3, fitting against the inner wall of the variable diameter water sealing pipe 3. At this time, the discharge port 320 on the sealing block 310 and the discharge port 330 on the variable diameter water sealing pipe 3 overlap. The fluid water sealing material flows through the discharge port 320 and the discharge port 330 to the outer surface of the variable diameter water sealing pipe 3 until it fills the space between the outer surface of the variable diameter water sealing pipe 3 and the well wall. At the same time, the movable ring 440 and the movable ring 510 are pushed, so that the two adjacent sets of expansion water sealing strips fit tightly together, and the expansion water sealing strips fit tightly against the well wall. Combined with the above-mentioned water sealing component 4 and water sealing component 5, a double water sealing effect is achieved.

[0036] In the description of this utility model, it should be understood that the terms "coaxial", "bottom", "one end", "top", "middle", "other end", "upper", "side", "top", "inner", "front", "center", "both ends", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0037] In this utility model, unless otherwise explicitly specified and limited, the terms "installation", "setting", "connection", "fixing", "screw connection", etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal connection of two components or the interaction between two components. Unless otherwise explicitly limited, those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0038] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A water-stopping device for a deep brine well, comprising an upper pipe (1), a lower pipe (2), and a reducing pipe (3), characterized in that: The upper pipe (1), the variable diameter waterstop pipe (3) and the lower pipe (2) are arranged in sequence, and the variable diameter waterstop pipe (3) is arranged on the opposite side of the upper pipe (1) and the lower pipe (2); A water-stop assembly 1 (4) is provided between the upper pipe (1) and the reducing water-stop pipe (3). The water-stop assembly 1 (4) includes a fixing ring 1 (410). The outer surface of the fixing ring 1 (410) is welded to the outer surface of the upper pipe (1). An expansion water-stop strip 1 (420) is provided on the side of the fixing ring 1 (410). The expansion water-stop strip 1 (420) is wound and connected to the outer surface of the upper pipe (1). An expansion water-stop strip 2 (430) is provided on the other side of the expansion water-stop strip 1 (420). The expansion water-stop strip 2 (430) is wound and connected to the outer surface of the reducing water-stop pipe (3). Around the connection, a movable ring (440) is provided on the other side of the expansion waterstop strip (430). The outer surface of the movable ring (440) is movably connected to the outer surface of the variable diameter waterstop pipe (3). A waterstop component (5) is provided between the lower pipe (2) and the variable diameter waterstop pipe (3). The structures of the waterstop component (4) and the waterstop component (5) are the same. A discharge port (330) is opened on the inner wall of the variable diameter waterstop pipe (3). A sealing block (310) is attached to the inner wall of the variable diameter waterstop pipe (3). A discharge port (320) is opened on the sealing block (310).

2. The water-stopping device for a deep brine well according to claim 1, characterized in that: The second water-stop component (5) includes a second fixed ring (540). The outer surface of the second fixed ring (540) is welded to the outer surface of the lower pipe (2). An expansion water-stop strip four (530) is provided on the side of the second fixed ring (540). The expansion water-stop strip four (530) is wound and connected to the outer surface of the lower pipe (2). An expansion water-stop strip three (520) is provided on the other side of the expansion water-stop strip four (530). The expansion water-stop strip three (520) is wound and connected to the outer surface of the variable diameter water-stop pipe (3). A movable ring two (510) is provided on the other side of the expansion water-stop strip three (520). The outer surface of the movable ring two (510) is movably connected to the outer surface of the variable diameter water-stop pipe (3).

3. The water-stopping device for a deep brine well according to claim 1, characterized in that: The expansion waterstop strip one (420) and the fixed ring one (410) are connected by waterproof sealant, and the expansion waterstop strip two (430) and the movable ring one (440) are connected by waterproof sealant.

4. The water-stopping device for a deep brine well according to claim 2, characterized in that: The expansion waterstop strip three (520) and the movable ring two (510) are connected by waterproof sealant, and the expansion waterstop strip four (530) and the fixed ring two (540) are connected by waterproof sealant.

5. A water-stopping device for a deep brine well according to claim 1, characterized in that: The discharge port 2 (330) and discharge port 1 (320) are each provided with four sets, and the four sets of discharge port 2 (330) and discharge port 1 (320) are arranged around the axis of the variable diameter water stop pipe (3).

6. The water-stopping device for a deep brine well according to claim 1, characterized in that: The sealing block (310) has a threaded connection hole (340) in the middle position, and the inside of the threaded connection hole (340) is threadedly connected to the outer surface of the drill rod.