Electric melting pipe fitting welding effect detection device

Abstract

The utility model belongs to the technical field of pipe fitting welding detection, and discloses an electric melting pipe fitting welding effect detection device which comprises an electric melting pipe fitting, two temperature sensing assemblies are arranged on the outer surface of the electric melting pipe fitting, and the two temperature sensing assemblies are symmetrically arranged at a connector of the electric melting pipe fitting respectively. The temperature sensing assembly is used for sensing the temperature of the outer surface of the melting area and comprises a fixing adhesive tape and a color changing block arranged on the fixing adhesive tape, the fixing adhesive tape is used for being bonded and fixed to the outer surface of the melting area of the electric melting pipe fitting, and the color changing block is used for sensing the temperature of the outer surface of the melting area so as to change the color of the color changing block and is white under the normal temperature condition. The color changing block changes color under a high-temperature condition, and the color is kept unchanged after color changing; according to the utility model, the temperature sensing assembly is arranged to sense the temperature of the outer surface of the melting area, and the sensed temperature is presented in a visual form, so that a worker can observe the temperature conveniently, and the problem of quickly detecting the welding effect of the pipe fitting is solved.

Description

Technical Field

[0001] The present invention belongs to the technical field of pipe welding detection, and specifically relates to a device for detecting the welding effect of an electric fusion pipe. Background Art

[0002] At present, the electrofusion welding work at the construction site usually carries out strength and airtightness tests after the welding is completed to judge whether the welding is qualified. In actual operation, factors such as whether the pipes and fittings used for welding are qualified, whether the operation of the welding personnel is standardized, and whether the welding equipment is properly used will affect the welding quality, so it is difficult to completely avoid quality problems in electrofusion welding.

[0003] For example, the existing publication (announcement) number is "CN216208800U" for a nondestructive testing device for electric fusion welding of polyethylene pipes, which includes a support seat, and limiting parts are arranged at both ends of the support seat. A circular hole is arranged in the middle of the limiting part to limit and fix the welded polyethylene pipe; an annular track groove is arranged on the outer side of the limiting part, and a cross bar is arranged in the track groove through a slider, and the cross bar is fixed to the connecting rod through an adapter, and a phased array nondestructive testing part is arranged on the connection; the slider can slide along the track groove, and the phased array nondestructive testing part can rotate around the polyethylene pipe for one circle to detect the welding quality.

[0004] The above device is used to detect the welding quality of the pipeline by setting up a phased array nondestructive testing unit. However, the device has the following defects: (1) The device can only be detected in the subsequent testing link after the pipeline welding is completed, which has a lag. (2) When testing, the device needs to link multiple components, and the operation is relatively cumbersome. Therefore, there is an urgent need for an electric fusion pipe welding effect detection device that can quickly detect the welding effect of pipe fittings. Utility Model Content

[0005] The purpose of this scheme is to provide a device for detecting the welding effect of electric fusion pipe fittings, so as to quickly detect the welding effect problems of pipe fittings.

[0006] In order to achieve the above-mentioned purpose, the present invention provides a device for detecting the welding effect of an electric fusion pipe fitting, comprising an electric fusion pipe fitting, wherein a temperature sensing component is provided on the outer surface of the electric fusion pipe fitting, and the temperature sensing component is used to sense the temperature of the outer surface of the molten zone and present the temperature in a visual form.

[0007] The principle of this scheme is as follows: (1) When the electric fusion welding machine is used to heat the resistance wire embedded in the inner wall of the electric fusion pipe fitting, its heat energy causes the connection interface between the pipe fitting and the pipe to melt and connect. (2) Since the material of the capacitor pipe fitting is PE material with good thermal conductivity, the temperature inside the pipe fitting will be transmitted to the surface of the pipe fitting in a relatively short time. Therefore, a temperature sensing component is set to sense the temperature of the outer surface of the molten zone, and the sensed temperature is presented in a visual form, which is convenient for workers to observe. The visual temperature can be used to judge the welding effect of the pipe fitting.

[0008] The technical effects of this solution are: (1) By arranging a temperature sensing component on the outer surface of the electric fusion pipe fitting, the temperature changes in the welding area can be monitored in real time. This provides more immediate feedback and helps to detect potential welding problems early in the welding process. (2) Since the temperature sensing component can quickly sense the temperature of the outer surface of the electric fusion pipe fitting, it can be quickly tested after the welding is completed. This greatly shortens the detection time and improves work efficiency. (3) The sensed temperature is presented in a visual form, allowing workers to intuitively observe the temperature conditions in the welding area. This helps operators to more accurately judge the welding effect. (4) This solution avoids the cumbersome operation of linking multiple components by utilizing the thermal conductivity of the capacitor pipe material to link the temperature sensing component, making the device simpler and easier to use.

[0009] Furthermore, the temperature sensing component is arranged on the outer surface of the melting zone of the electric fusion pipe.

[0010] The technical effect of this solution is that the outer surface of the molten zone of the electric fusion pipe is the area that senses temperature changes fastest, and arranging the temperature sensing component here is conducive to timely response.

[0011] Furthermore, the number of the temperature sensing components is two, and the two temperature sensing components are symmetrically arranged at the interfaces of the electric fusion pipe fittings.

[0012] The technical effect of this solution is that electric fusion welding is required at the connection point of two pipes to connect the two pipes together in turn. Therefore, temperature sensing components are set at the interface of the electric fusion pipe fittings to check the welding effect at the two connection ports.

[0013] Furthermore, the temperature sensing component includes a fixed adhesive sticker and a color-changing block arranged on the fixed adhesive sticker, the fixed adhesive sticker is used to be bonded and fixed to the outer surface of the melting zone of the electric fusion pipe fitting, and the color-changing block is used to sense the temperature of the outer surface of the melting zone and present the temperature in a visual form.

[0014] The technical effect of this solution is that the color-changing block is fixed on the outer surface of the fusion zone of the electrofusion pipe by sticking the fixing adhesive sticker on the outer surface of the fusion zone of the electrofusion pipe. At the same time, the sticking and fixing method is also easy to disassemble.

[0015] Furthermore, the color-changing block changes its own color by changing the temperature of the outer surface of the melting zone.

[0016] The technical effects of this solution are: (1) When the temperature of the melting zone of the electric fusion pipe changes, the color-changing block changes its original color and is presented in a visual form, which is convenient for construction personnel to observe and judge the welding effect. (2) Generally speaking, when the pipeline is welded to the electric fusion pipe, the higher temperature can melt the pipe made of PE material, so that the pipeline and the electric fusion pipe are better fixed. Therefore, high temperature is one of the key factors to measure the welding effect. Therefore, the temperature of the welding point is judged by the color-changing block and visualized.

[0017] Furthermore, the color-changing block is made of a thermally conductive material.

[0018] The technical effect of this solution is that the color-changing block made of thermally conductive material can respond more quickly to temperature changes in the welding area, making the color of the color-changing block respond more quickly.

[0019] Furthermore, the color-changing block is made of a material that changes color when exposed to high temperature.

[0020] The technical effect of this solution is that the color-changing block will change color only when it encounters a higher welding temperature, and will not change color if it is at room temperature, thereby providing feedback on the welding temperature.

[0021] Furthermore, the color-changing block is made of thermochromic paint or thermochromic glass.

[0022] The technical effect of this solution is that thermochromic paint or thermochromic glass are both materials that change color when exposed to high temperatures. The color-changing block is made of one of these materials, and both can feed back temperature changes to workers in a visual form through color changes.

[0023] Furthermore, the colors of the color-changing blocks correspond to the welding temperatures.

[0024] The technical effect of this solution is that after the electric fusion pipe welding is completed, the heat generated inside the qualified welded product will be transferred to the surface in a relatively short time, thereby changing the color of the color-changing block. However, the heat generated inside the unqualified welded product is insufficient, and the temperature transferred to the surface is not enough to change the color of the color-changing block.

[0025] Furthermore, the color-changing block is white under normal temperature conditions, changes color under high temperature conditions, and the color remains unchanged after the color change.

[0026] The technical effects of this solution are: (1) Workers can roughly judge the welding temperature by observing the color of the color-changing block, thereby judging the quality of the welding effect. After the welding is completed, when the temperature reaches a certain value, it changes to a specific color and remains unchanged, which is conducive to the intuitive feeling and rapid screening of construction workers. If the color-changing block is observed to change from white, it means that the welding temperature is high, the pipe and the electric fusion pipe fitting are fully fused, and the two are more firmly fixed after cooling, and the welding effect is also better. (2) Different types of color-changing blocks can be selected according to different models of pipe fittings. Different color-changing temperatures will result in different colors. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 The utility model is a structural schematic diagram of a device for detecting welding effect of electric fusion pipe fittings.

[0028] The names of the corresponding marks in the drawings are: electric fusion pipe fitting 1, temperature sensing component 2, fixing adhesive sticker 21, color-changing block 22, polyethylene tube 3. DETAILED DESCRIPTION

[0029] The following will clearly and completely describe the concept and technical effects of the utility model in combination with the embodiments, so as to fully understand the purpose, features and effects of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of them. Based on the embodiments of the utility model, other embodiments obtained by technicians in this field without creative work are all within the scope of protection of the utility model:

[0030] Example:

[0031] See also Figure 1 A device for detecting welding effect of an electric fusion pipe fitting comprises an electric fusion pipe fitting 1, which is used to connect two polyethylene pipes 3; two temperature sensing components 2 are symmetrically arranged on the outer surface of the melting zone of the electric fusion pipe fitting 1, and the outer surface of the melting zone of the electric fusion pipe fitting 1 is the area that senses temperature changes fastest. The temperature sensing components 2 are arranged here, which is conducive to timely responding to temperature changes. Two temperature sensing components 2 are arranged at the connection port of the electric fusion pipe fitting 1 to check the welding effect at the two connection ports.

[0032] The temperature sensing component 2 includes a fixed adhesive sticker 21 and a color-changing block 22 arranged on the fixed adhesive sticker 21. The fixed adhesive sticker 21 is used to be bonded and fixed to the outer surface of the melting zone of the electric fusion pipe 1. The color-changing block 22 is used to sense the temperature of the outer surface of the melting zone and present the temperature in a visual form. By bonding the fixed adhesive sticker 21 to the outer surface of the melting zone of the electric fusion pipe 1, the color-changing block 22 is fixed to the outer surface of the melting zone of the electric fusion pipe 1. At the same time, the bonding and fixing method also facilitates the disassembly of the temperature sensing component 2.

[0033] The color-changing block 22 is made of a heat-conducting material that changes color when exposed to high temperature, and can be specifically a color-changing block 22 made of a thermochromic coating or a thermochromic glass; the heat-conducting color-changing block 22 that changes color when exposed to high temperature can respond to the temperature change of the welding area more quickly, so that the color of the color-changing block 22 responds more quickly. The color of the color-changing block 22 corresponds to the welding temperature. After the electric fusion pipe 1 is welded, the heat generated inside the qualified welded product will be transferred to the surface in a short time, so that the color-changing block 22 changes color. However, the heat generated inside the unqualified welded product is insufficient, and the temperature transferred to the surface is not enough to change the color of the color-changing block 22. The color-changing block 22 is white at room temperature, and the color-changing block 22 changes to a specific color under high temperature conditions, and the color of the color-changing block 22 remains unchanged after the color change, which is conducive to the intuitive feeling and rapid screening of construction personnel. Different types of color-changing blocks 22 can be selected according to different types of pipe fittings, and the color change temperature is different, and the color change is also different. Workers can roughly judge the welding temperature by observing the color of the color-changing block 22, thereby judging the quality of the welding effect. After welding is completed, if the color-changing block 22 is observed to be white, it means that the welding temperature is low and the welding effect between the electric fusion pipe fitting 1 and the polyethylene pipe 3 is poor; if the color-changing block 22 is observed to gradually change from white to a specific color (for example, red), it means that the welding temperature is high, the electric fusion pipe fitting 1 and the polyethylene pipe 3 are fully melted, the two are more firmly fixed after cooling, and the welding effect is better.

[0034] The above is only an embodiment of the utility model, and the common knowledge such as the known specific structure and characteristics in the scheme is not described in detail here. It should be pointed out that for those skilled in the art, several deformations and improvements can be made without departing from the structure of the utility model, which should also be regarded as the protection scope of the utility model, and these will not affect the effect of the implementation of the utility model and the practicality of the patent. The scope of protection required by this application shall be based on the content of its claims, and the specific implementation methods and other records in the specification can be used to interpret the content of the claims.

Claims

1. A device for detecting welding effect of an electric fusion pipe fitting, comprising an electric fusion pipe fitting (1), Features: A temperature sensing component (2) is provided on the outer surface of the electric fusion pipe (1), and the temperature sensing component (2) is used to sense the temperature of the outer surface of the fusion zone and present the temperature in a visual form.

2. The device for detecting the welding effect of an electric fusion pipe fitting according to claim 1, characterized in that: The temperature sensing component (2) is arranged on the outer surface of the melting zone of the electric melting pipe (1).

3. The device for detecting welding effect of electric fusion pipe fittings according to claim 1, characterized in that: The number of the temperature sensing components (2) is two, and the two temperature sensing components (2) are symmetrically arranged at the interfaces of the electric fusion pipe fitting (1).

4. The device for detecting the welding effect of an electric fusion pipe fitting according to claim 1, characterized in that: The temperature sensing component (2) comprises a fixing adhesive sticker (21) and a color-changing block (22) arranged on the fixing adhesive sticker (21), the fixing adhesive sticker (21) being used to be bonded and fixed to the outer surface of the melting zone of the electric melting pipe (1), and the color-changing block (22) being used to sense the temperature of the outer surface of the melting zone and present the temperature in a visual form.

5. The device for detecting the welding effect of an electric fusion pipe fitting according to claim 4, characterized in that: The color-changing block (22) changes its own color by changing the temperature of the outer surface of the melting zone.

6. The device for detecting the welding effect of an electric fusion pipe according to claim 4, characterized in that: The color-changing block (22) is a color-changing block (22) made of a heat-conducting material.

7. The device for detecting the welding effect of an electric fusion pipe according to claim 4, characterized in that: The color-changing block (22) is a color-changing block (22) made of a material that changes color when exposed to high temperatures.

8. The device for detecting the welding effect of an electric fusion pipe according to claim 7, characterized in that: The color-changing block (22) is a color-changing block (22) made of thermochromic paint or thermochromic glass.

9. The device for detecting welding effect of electric fusion pipe fittings according to claim 7, characterized in that: The colors of the color-changing blocks (22) respectively correspond to the welding temperatures.

10. The device for detecting the welding effect of an electric fusion pipe fitting according to claim 9, characterized in that: The color-changing block (22) is white under normal temperature conditions, and changes color under high temperature conditions, and the color remains unchanged after the color change.

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