Anti-corrosion pipeline joint with anti-leakage detection function
By installing gas and water immersion sensors at pipe joints, the problem of insufficient leak detection in existing technologies is solved, enabling real-time detection and alarm of gas and water leaks, thereby improving the safety and maintenance efficiency of pipeline systems.
Patent Information
- Application Number
- CN202520737511.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-18
- Publication Date
- 2026-02-24
- Estimated Expiration
- 2035-04-18
AI Technical Summary
Existing pipe joints lack leak detection capabilities, making it difficult to detect gas or water leaks in a timely manner, increasing safety hazards and maintenance difficulties.
Gas detection sensors and water immersion sensors are installed at pipe joints. The sensors are linked with the alarm to achieve real-time detection and alarm of gas and water leaks. A composite anti-corrosion layer is applied to key connections to improve sealing.
It enables timely detection and alarm of gas and water leaks, reduces safety hazards, and improves the safety and maintenance efficiency of pipeline systems.
Smart Images

Figure CN223938930U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of pipe joint technology, specifically to a corrosion-resistant pipe joint with leak detection capability. Background Technology
[0002] In pipeline engineering projects such as gas transmission and water supply and drainage, pipe joints are key structures connecting pipe sections. Their sealing performance and corrosion resistance directly determine the long-term safe operation of the pipeline system. Currently, anti-corrosion pipe joints mainly improve their corrosion resistance through processes such as epoxy coating and polyethylene thermoplastic molding.
[0003] However, existing pipe joints do not have leak detection capabilities. When a small amount of gas leaks in a non-exposed pipe, the existing joints lack built-in detection capabilities and have to rely on manual inspections or external monitoring equipment. This can easily lead to a safety accident due to delayed detection and the spread of the leak. Furthermore, when water supply pipe joints leak, the water flow can easily migrate along the outer wall of the pipe or the filling layer, making it impossible to locate the leak point. This can cause the leaking water to continue to spread, increasing the difficulty of maintenance. Utility Model Content
[0004] The purpose of this invention is to provide a corrosion-resistant pipe joint with leak detection capability to overcome the shortcomings of the prior art.
[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows:
[0006] A corrosion-resistant pipe joint with leak detection capability includes a pipe body and a joint body. Two pipe bodies are symmetrically distributed. Both sides of the joint body are fixed to the two pipe bodies via flanges. A connecting plate is fixedly connected to the outer side of the joint body. Protective detection components are connected to both sides of the connecting plate via flanges. Each protective detection component includes a protective pipe, a gas detection sensor, a water immersion sensor, and a sealing plate. The protective pipe is located on the outer side of the corresponding pipe body. The gas detection sensor is fixedly installed on the top of the protective pipe, with its detection tube extending into the interior of the protective pipe. The water immersion sensor is fixedly installed on the bottom of the inner wall of the protective pipe. An alarm is fixedly installed at the bottom of the protective pipe, and the water immersion sensor is connected to the alarm via a wire. Two sealing plates are fixed to the side of the protective pipe away from the pipe body using fasteners.
[0007] The beneficial effects of this utility model are: when it is necessary to inspect the gas pipeline, the gas detection sensor at the top can detect whether there is a gas leak at the connection between the connector body and the pipeline body. When it is necessary to inspect the water supply pipeline, if there is a water leak at the connection between the connector body and the pipeline body, the water will gradually flow down the inner wall of the protective pipe to the bottom, and can be detected by the water immersion sensor, thereby triggering an alarm. It has high adaptability in use.
[0008] Based on the above technical solution, the present invention can be further improved as follows.
[0009] Furthermore, the two protective detection components also include sealing strips, and there are two sealing strips, which are respectively fixedly installed on the side of the two sealing plates near the pipe body. The other end of each of the two sealing strips is attached to the outer side of the corresponding side of the pipe body.
[0010] Furthermore, the inner wall of the protective pipe is fitted to the outer wall of the flange of the corresponding side pipe body, and the gas detection sensor has two detection tubes, which are symmetrically distributed from left to right.
[0011] Furthermore, both of the protective pipes have water storage tanks inside, and the water immersion sensor is fixedly installed inside the water storage tanks.
[0012] Furthermore, the bottom of the water storage tank is inclined, and absorbent cotton is placed inside both water storage tanks. The detection ends of the two water immersion sensors are respectively attached to the absorbent cotton on the corresponding side.
[0013] Furthermore, the two water storage tanks are located directly below the flanges of the corresponding side pipe bodies.
[0014] Furthermore, the connection between the pipe body and the joint body, as well as the connection between the protective pipe and the connecting plate and the sealing plate, are all coated with a composite anti-corrosion layer.
[0015] Furthermore, the bottom of the two upper sealing plates is provided with two insertion slots that are symmetrically distributed front and back, and the top of the two lower sealing plates is fixedly installed with two insertion blocks that are symmetrically distributed front and back, and the insertion blocks are inserted into the insertion slots. Attached Figure Description
[0016] Figure 1 This is a schematic diagram of the internal three-dimensional structure of the present invention;
[0017] Figure 2 This is a three-dimensional structural diagram of the present invention from one external perspective;
[0018] Figure 3 This is a schematic diagram of the disassembled three-dimensional structure of this utility model;
[0019] Figure 4 This is a three-dimensional structural diagram of the two sealing plates on the right side of this utility model.
[0020] The attached diagram lists the components represented by each number as follows:
[0021] 1. Pipe body; 2. Connector body; 3. Connecting plate; 4. Protection and detection components; 401. Protective pipe; 402. Gas detection sensor; 403. Water immersion sensor; 404. Sealing plate; 405. Alarm; 406. Sealing strip; 5. Water storage tank; 6. Absorbent cotton; 7. Insertion groove; 8. Insertion block. Detailed Implementation
[0022] The principles and features of this utility model are described below with reference to the accompanying drawings. The examples given are only for explaining this utility model and are not intended to limit the scope of this utility model.
[0023] Example 1, as Figures 1-4 As shown, a corrosion-resistant pipe joint with leak detection includes a pipe body 1 and a joint body 2. There are two pipe bodies 1, which are symmetrically distributed. The left and right sides of the joint body 2 are fixed to the two pipe bodies 1 by flanges. A connecting plate 3 is fixedly connected to the outside of the joint body 2. The left and right sides of the connecting plate 3 are connected to a protection detection component 4 by flanges. Each of the two protection detection components 4 includes a protective pipe 401, a gas detection sensor 402, a water immersion sensor 403, and a sealing plate 404. The protective pipe 401 is located on the outside of the corresponding side of the pipe body 1. The gas detection sensor 402 is fixedly installed on the top of the protective pipe 401, and its detection tube extends into the inside of the protective pipe 401. The water immersion sensor 403 is fixedly installed on the bottom of the inner wall of the protective pipe 401. An alarm 405 is fixedly installed at the bottom of the protective pipe 401. The water immersion sensor 403 is connected to the alarm 405 by a wire. There are two sealing plates 404, which are fixed to the side of the protective pipe 401 away from the pipe body 1 by fasteners.
[0024] First, the two protective tubes 401 are fitted onto the outside of the two pipe bodies 1 to install the connector body 2. Then, the two protective tubes 401 are fixed to the connecting plate 3 on the connector body 2. Then, the sealing plates 404 on the left and right sides are fixedly installed. (The gas detection sensor 402 and the water immersion sensor 403, together with the alarm 405, can transmit wireless signals, which makes it easy for staff to know where the leak is. The principle of this wireless signal transmission is a technical means well known to those skilled in the art, so it will not be described in detail.)
[0025] Example 2 is a further improvement based on Example 1, and it is as follows: The two protective detection components 4 also include two sealing strips 406, and the two sealing strips 406 are fixedly installed on the side of the two sealing plates 404 near the pipe body 1, and the other end of the two sealing strips 406 are attached to the outer side of the corresponding side of the pipe body 1.
[0026] This design ensures airtightness after the protective pipe 401 is installed via the sealing strip 406, preventing gas or water leakage. Furthermore, both the sealing plate 404 and the sealing strip 406 have a semi-circular shape on the side closest to the pipe body 1, allowing for better fit and installation with the pipe body 1.
[0027] Example 3 is a further improvement based on Example 1. Specifically, the inner wall of the protective pipe 401 is fitted with the outer wall of the flange of the corresponding side pipe body 1, and the gas detection sensor 402 has two detection tubes, which are symmetrically distributed from left to right.
[0028] With this configuration, the two detection tubes of the gas detection sensor 402 can be located on the left and right sides of the connection between the corresponding side pipe body 1 and the connector body 2, thereby enabling better detection of gas leaks.
[0029] Example 4 is a further improvement based on Example 1, and it is as follows: a water storage tank 5 is provided inside both protective pipes 401, and the water immersion sensor 403 is fixedly installed inside the water storage tank 5.
[0030] This configuration allows the leaked water to be collected through the water storage tank 5 in the event of a water leak, thus facilitating detection by the water immersion sensor 403.
[0031] Example 5 is a further improvement based on Example 4. Specifically, the bottom of the water storage tank 5 is inclined, and absorbent cotton 6 is placed inside both water storage tanks 5. The detection ends of the two water immersion sensors 403 are respectively attached to the absorbent cotton 6 on the corresponding side.
[0032] This setup allows the absorbent cotton 6 to absorb leaked water, thus mitigating the risk of water leakage. Furthermore, the detection end of the water immersion sensor 403 is located inside the absorbent cotton 6, enabling more timely detection of water leaks.
[0033] Example 6 is a further improvement on Example 5, and its specific details are as follows: the two water storage tanks 5 are located directly below the flange of the corresponding side pipe body 1.
[0034] This design allows water to flow through the inside of the protective pipe 401 into the water storage tank 5 in the event of a leak, facilitating subsequent inspection.
[0035] Example 7 is a further improvement based on Example 1. Specifically, the connection between the pipe body 1 and the joint body 2, as well as the connection between the protective pipe 401 and the connecting plate 3 and the sealing plate 404, are coated with a composite anti-corrosion layer.
[0036] This design further enhances the connectivity of the joints through a composite anti-corrosion layer (the composite anti-corrosion layer consists of PTFE + epoxy resin + nano-ceramic particles, which improves the anti-corrosion effect and extends the coating life; this is a well-known technical method in the art, so it will not be elaborated further).
[0037] Example 8 is a further improvement based on Example 1. Specifically, the bottom of the two upper sealing plates 404 is provided with two insertion slots 7 that are symmetrically distributed front and back. The top of the two lower sealing plates 404 is fixedly installed with two insertion blocks 8 that are symmetrically distributed front and back. The insertion blocks 8 and the insertion slots 7 are inserted into each other.
[0038] This design improves the sealing of the connection points after installation by using the interlocking block 8 and the interlocking slot 7 when installing the two sealing plates 404, thus facilitating subsequent use.
[0039] Working principle:
[0040] In the event of a gas leak, the gas detection sensors 402 on the left and right sides can detect the location of the leak at the joint body 2 in a timely manner, and the two detection tubes of the gas detection sensor 402 can conveniently detect leaks on the left and right sides of the connection between the pipe body 1 and the joint body 2.
[0041] In the event of a water leak, the leaked water is collected by the water storage tank 5 at the bottom and absorbed by the absorbent cotton 6. The water immersion sensor 403 can then detect the leak. When the water immersion sensor 403 detects water, it transmits a signal to the alarm 405 to alert the staff. Furthermore, with the cooperation of the protective pipe 401, the sealing plate 404, and the sealing strip 406, leakage can be further prevented in the event of a leak.
[0042] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.
Claims
1. A corrosion-resistant pipe joint with leak detection capability, comprising a pipe body (1) and a joint body (2), characterized in that: The number of pipe bodies (1) is two and they are symmetrically distributed on the left and right. The left and right sides of the connector body (2) are fixed to the two pipe bodies (1) by flanges. A connecting plate (3) is fixedly connected to the outside of the connector body (2). The left and right sides of the connecting plate (3) are connected to the protective detection components (4) by flanges. The two protective detection components (4) each include a protective pipe (401), a gas detection sensor (402), a water immersion sensor (403), and a sealing plate (404). The protective pipe (401) is located on the corresponding side of the pipe body. (1) On the outside, the gas detection sensor (402) is fixedly installed on the top of the protective pipe (401), and its detection tube extends into the inside of the protective pipe (401). The water immersion sensor (403) is fixedly installed on the bottom of the inner wall of the protective pipe (401). An alarm (405) is fixedly installed at the bottom of the protective pipe (401). The water immersion sensor (403) is connected to the alarm (405) through a wire. There are two sealing plates (404) and they are fixed to the side of the protective pipe (401) away from the pipe body (1) by fasteners.
2. The anti-corrosion pipe joint with leak detection according to claim 1, characterized in that, The two protective detection components (4) also include sealing strips (406), there are two sealing strips (406), and they are respectively fixedly installed on the side of the two sealing plates (404) near the pipe body (1). The other end of the two sealing strips (406) is attached to the outer side of the corresponding side of the pipe body (1).
3. The anti-corrosion pipe joint with leak detection according to claim 1, characterized in that, The inner wall of the protective pipe (401) is fitted with the outer wall of the flange of the corresponding side pipe body (1), and the gas detection sensor (402) has two detection tubes, which are symmetrically distributed on the left and right.
4. A corrosion-resistant pipe joint with leak detection as described in claim 1, characterized in that, Both of the protective tubes (401) have water storage tanks (5) inside, and the water immersion sensor (403) is fixedly installed inside the water storage tanks (5).
5. A corrosion-resistant pipe joint with leak detection as described in claim 4, characterized in that, The bottom of the water storage tank (5) is inclined, and absorbent cotton (6) is placed inside both water storage tanks (5). The detection ends of the two water immersion sensors (403) are respectively attached to the absorbent cotton (6) on the corresponding side.
6. A corrosion-resistant pipe joint with leak detection as described in claim 5, characterized in that, The two water storage tanks (5) are located directly below the flange of the corresponding side pipe body (1).
7. A corrosion-resistant pipe joint with leak detection according to claim 1, characterized in that, The connection between the pipe body (1) and the joint body (2), as well as the connection between the protective pipe (401) and the connecting plate (3) and the sealing plate (404), are all coated with a composite anti-corrosion layer.
8. A corrosion-resistant pipe joint with leak detection as described in claim 1, characterized in that, The bottom of the two upper sealing plates (404) is provided with two insertion slots (7) that are symmetrically distributed front and back. The top of the two lower sealing plates (404) is fixedly installed with two insertion blocks (8) that are symmetrically distributed front and back. The insertion blocks (8) are inserted into the insertion slots (7).