A device for detecting the thickness of a tetrafluoroethylene lining of a fluorine lining equipment
By designing an automated PTFE lining thickness detection device, and utilizing the cooperation of the drive mechanism and positioning components, the problems of time-consuming, labor-intensive, and unstable traditional detection methods have been solved, achieving efficient and accurate thickness measurement.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- NANJING FUYUAN CHEM PIPELINE EQUIP
- Filing Date
- 2025-05-19
- Publication Date
- 2026-06-23
Smart Images

Figure CN224398609U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of PTFE lining thickness detection, specifically a PTFE lining thickness detection device for PTFE lining equipment. Background Technology
[0002] In the chemical, petroleum, and metallurgical industries, PTFE-lined equipment is widely used due to its excellent corrosion resistance. The thickness of the PTFE lining, a key component of this type of equipment, is a core indicator for evaluating the equipment's corrosion resistance, service life, and ensuring safe operation. In order to accurately determine the thickness of the PTFE lining, thickness testing equipment has become an indispensable monitoring tool.
[0003] Traditional thickness measurement equipment often uses ultrasonic thickness measurement. During operation, the operator typically holds the PTFE lining to be measured in one hand or places it on a flat surface, while holding the ultrasonic probe in the other hand to make contact with the PTFE lining. Through the contact between the ultrasonic probe and the PTFE lining, the equipment can sense and measure the thickness of the PTFE lining, thus achieving the thickness measurement operation. However, in practical applications, because the entire detection process relies on manual operation, it is time-consuming and labor-intensive. Furthermore, when manually fixing the PTFE lining, it is difficult to ensure its stability, as the PTFE lining is prone to movement or displacement. This leads to incomplete contact between the ultrasonic probe and the PTFE lining, which directly affects the accuracy and quality of the thickness measurement and may even cause misjudgments, adversely affecting the subsequent use and maintenance of the equipment.
[0004] In summary, this utility model provides a device for detecting the thickness of PTFE lining in PTFE-lined equipment to solve the above-mentioned problems. Utility Model Content
[0005] To solve the above-mentioned technical problems, this utility model provides the following technical solution:
[0006] A device for detecting the thickness of PTFE lining in PTFE-lined equipment, comprising:
[0007] A driving mechanism, a detection mechanism disposed in the inner cavity of the driving mechanism for detecting the thickness of the PTFE lining, and a positioning component disposed at the bottom of the detection mechanism for positioning the PTFE lining.
[0008] The drive mechanism includes a base plate, a support fixedly connected to the top of the base plate, a geared motor fixedly connected to the top of the support, a screw connected to the output shaft of the geared motor, and a threaded sleeve threaded to the surface of the screw.
[0009] The positioning assembly includes a spring, a connecting plate fixedly connected to the bottom of the spring, and a rubber pad fixedly connected to the bottom of the connecting plate.
[0010] Furthermore, in this utility model, the detection mechanism includes a placement seat, a microcontroller disposed in the inner cavity of the placement seat, a connecting sleeve fixedly connected to the bottom of the placement seat, and an ultrasonic probe disposed in the inner cavity of the connecting sleeve.
[0011] Furthermore, in this utility model, the back of the placement seat is fixedly connected to the screw sleeve, the ultrasonic probe is connected to the microcontroller via a circuit, slide seats are fixedly connected to both sides of the back of the placement seat, slide rails are fixedly connected to both sides of the front of the support, the slide seats are located on the surface of the slide rails and are slidably connected to the surface of the slide rails.
[0012] Furthermore, in this invention, an anti-slip pad is fixedly connected to the top of the base plate, and the bottom of the screw is movably connected to the top of the base plate via a bearing.
[0013] Furthermore, in this utility model, the inner cavity of the spring is provided with a limiting cylinder, and the inner cavity of the limiting cylinder is slidably connected with a sliding rod. The top of the limiting cylinder is fixedly connected to the placement seat, and the bottom of the sliding rod is fixedly connected to the connecting plate.
[0014] Beneficial effects: This utility model has the following beneficial effects:
[0015] This invention achieves automated testing by using a drive mechanism and a testing mechanism in combination, reducing reliance on manual operation and greatly improving testing efficiency. The spring and rubber pad design in the positioning component ensures the stable fixation of the test piece during testing, avoiding measurement errors caused by displacement. Furthermore, the testing mechanism enables accurate measurement of the PTFE lining thickness, improving the accuracy and reliability of the testing. Attached Figure Description
[0016] Figure 1 This is a schematic diagram of the structure of this utility model;
[0017] Figure 2 This is a schematic diagram of the connection structure of the support, geared motor, screw and screw sleeve of this utility model;
[0018] Figure 3 This is a schematic diagram of the structure of the testing mechanism of this utility model;
[0019] Figure 4 This is a schematic diagram of the positioning component structure of this utility model.
[0020] In the picture:
[0021] 100. Drive mechanism; 110. Base plate; 120. Support; 121. Slide rail; 130. Gear motor; 140. Screw; 150. Screw sleeve; 200. Detection mechanism; 210. Placement seat; 211. Slide block; 220. Microcontroller; 230. Connecting sleeve; 240. Ultrasonic probe; 300. Positioning assembly; 310. Spring; 311. Limiting cylinder; 320. Connecting plate; 330. Rubber pad. Detailed Implementation
[0022] To better understand the technical content of this utility model, specific embodiments are described below in conjunction with the accompanying drawings. Various aspects of this utility model are described in this disclosure with reference to the accompanying drawings, which illustrate numerous illustrative embodiments. The embodiments of this disclosure are not necessarily defined to include all aspects of this utility model. It should be understood that the various concepts and embodiments described above, as well as those described in more detail below, can be implemented in any of many ways, because the concepts and embodiments disclosed in this utility model are not limited to any particular implementation. Furthermore, some aspects of this utility model can be used alone or in any suitable combination with other aspects disclosed in this utility model.
[0023] Example 1
[0024] like Figure 1-4 As shown, this is the first embodiment of the present invention, which provides a device for detecting the thickness of the PTFE lining in PTFE-lined equipment, including...
[0025] The driving mechanism 100, the detection mechanism 200 disposed in the inner cavity of the driving mechanism 100 and used for detecting the thickness of the PTFE lining, and the positioning component 300 disposed at the bottom of the detection mechanism 200 and used for positioning the PTFE lining.
[0026] The drive mechanism 100 includes a base plate 110, a support 120 fixedly connected to the top of the base plate 110, a geared motor 130 fixedly connected to the top of the support 120, a screw 140 transmitted to the output shaft of the geared motor 130, and a threaded sleeve 150 threadedly connected to the surface of the screw 140.
[0027] The positioning assembly 300 includes a spring 310, a connecting plate 320 fixedly connected to the bottom of the spring 310, and a rubber pad 330 fixedly connected to the bottom of the connecting plate 320.
[0028] like Figure 1-4As shown, the screw 140 and the sleeve 150 are driven by the geared motor 130 in the drive mechanism 100, which in turn enables the smooth lifting and lowering of the detection mechanism 200. This facilitates the contact detection between the detection mechanism 200 and the PTFE lining, thereby achieving an automated detection process, reducing reliance on manual operation, and greatly improving detection efficiency. The design of the spring 310 and the rubber pad 330 in the positioning component 300 ensures the stable fixation of the test piece during the detection process, and the deformation force of the rubber pad 330 can adapt to PTFE linings of different shapes, achieving flexible and accurate positioning and preventing measurement errors caused by displacement. Through the contact between the detection mechanism 200 and the PTFE lining, and through ultrasonic waves, the thickness of the PTFE lining can be accurately measured, improving the accuracy and reliability of the detection.
[0029] Example 2
[0030] Reference Figure 1 and 3 This is the second embodiment of the present invention, which is based on the previous embodiment.
[0031] In this embodiment, the detection mechanism 200 includes a placement seat 210, a microcontroller 220 disposed in the inner cavity of the placement seat 210, a connecting sleeve 230 fixedly connected to the bottom of the placement seat 210, and an ultrasonic probe 240 disposed in the inner cavity of the connecting sleeve 230.
[0032] The back of the placement base 210 is fixedly connected to the screw sleeve 150. The ultrasonic probe 240 is connected to the microcontroller 220 via a circuit. Slide seats 211 are fixedly connected to both sides of the back of the placement base 210. Slide rails 121 are fixedly connected to both sides of the front of the support 120. The slide seats 211 are located on the surface of the slide rails 121 and are slidably connected to the surface of the slide rails 121. The microcontroller 220 is an ESP32 series microcontroller.
[0033] like Figure 1 and 3 As shown, the sliding connection between the slide block 211 on the back of the placement seat 210 and the slide rail 121 on the front of the support 120 provides stable support and guidance for the detection mechanism 200, ensuring that it will not shift or tilt during movement. The ultrasonic probe 240 measures the thickness of the PTFE lining by utilizing the difference in ultrasonic propagation speed and reflection characteristics. Furthermore, the circuit connection between the ultrasonic probe 240 and the microcontroller 220 enables the detection data to be transmitted to the microcontroller 220 in real time for processing and analysis, thereby improving the efficiency and accuracy of the detection.
[0034] Example 3
[0035] Reference Figure 1 and 4 This is the third embodiment of the present invention, which is based on the first two embodiments.
[0036] In this embodiment, an anti-slip pad is fixedly connected to the top of the base plate 110, and the anti-slip pad is made of PVC material. The bottom of the screw 140 is movably connected to the top of the base plate 110 through a bearing.
[0037] The inner cavity of the spring 310 is provided with a limiting cylinder 311, and a sliding rod is slidably connected to the inner cavity of the limiting cylinder 311. The top of the limiting cylinder 311 is fixedly connected to the placement seat 210, and the bottom of the sliding rod is fixedly connected to the connecting plate 320. The rubber pad 330 is made of elastic rubber material.
[0038] like Figure 1 and 4 As shown, the anti-slip pad on the top of the base plate 110 increases the friction between the PTFE lining and the placement surface, preventing it from easily sliding and shifting. The connection between the screw 140 and the base plate 110 ensures the stability of the screw 140's rotation. The sliding connection between the limiting sleeve 311 and the slide rod guides and restricts the extension and retraction of the spring 310, ensuring the stable movement of the positioning assembly 300 in the vertical direction and preventing excessive compression or extension due to excessive force of the spring 310. The rubber pad 330 is made of elastic rubber material, and the softness and elasticity of the elastic rubber allow the rubber pad 330 to fit tightly against the PTFE lining surface, improving the accuracy and stability of the positioning.
[0039] In use, the PTFE liner is first placed on top of the base plate 110. The anti-slip pad on the top of the base plate 110 provides initial anti-slip protection, preventing movement. Then, the geared motor 130 in the drive mechanism 100 operates, driving the screw 140 and the screw sleeve 150. The screw sleeve 150 smoothly raises and lowers the detection mechanism 200 and the positioning component 300, allowing the positioning component 300 to contact the PTFE liner first. The reset pressure of the spring 310 is then transmitted to the connecting plate 320 and the rubber pad 330. The rubber pad 330 automatically adjusts according to the shape of the PTFE liner under pressure, ensuring tight contact between the rubber pad 330 and the PTFE liner, thus achieving... Positioning the PTFE lining prevents measurement errors caused by displacement later. Then, the ultrasonic probe 240 of the detection mechanism 200 contacts the PTFE lining for detection. The thickness of the PTFE lining is measured by utilizing the difference in ultrasonic propagation speed and reflection characteristics. At the same time, the thickness data is transmitted to the microcontroller 220 in real time via the line. The microcontroller 220 processes the received data and finally obtains the thickness value of the PTFE lining, thus realizing the thickness detection of the PTFE lining. Through the coordinated use of the drive mechanism 100, the positioning component 300 and the detection mechanism 200, the detection process is automated, reducing the reliance on manual operation and greatly improving detection efficiency and accuracy.
[0040] All standard parts used in this application can be purchased from the market, and can be customized according to the description and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts and equipment adopt conventional models in the prior art. The control method is automatic control through a controller. The control circuit of the controller can be implemented by simple programming by those skilled in the art and is common knowledge in the field. Since this application is mainly used to protect mechanical devices, the control method and circuit connection will not be explained in detail in this application.
[0041] Although the present invention has been disclosed above with reference to preferred embodiments, it is not intended to limit the present invention. Those skilled in the art to which this invention pertains can make various modifications and refinements without departing from the spirit and scope of the present invention. Therefore, the scope of protection of this invention shall be determined by the claims.
Claims
1. A device for detecting the thickness of PTFE lining in PTFE-lined equipment, characterized in that: include The driving mechanism (100), the detection mechanism (200) disposed in the inner cavity of the driving mechanism (100) and used for detecting the thickness of the PTFE lining, and the positioning component (300) disposed at the bottom of the detection mechanism (200) and used for positioning the PTFE lining. The drive mechanism (100) includes a base plate (110), a support (120) fixedly connected to the top of the base plate (110), a geared motor (130) fixedly connected to the top of the support (120), a screw (140) drively connected to the output shaft of the geared motor (130), and a threaded sleeve (150) threadedly connected to the surface of the screw (140). The positioning assembly (300) includes a spring (310), a connecting plate (320) fixedly connected to the bottom of the spring (310), and a rubber pad (330) fixedly connected to the bottom of the connecting plate (320).
2. The PTFE lining thickness detection device for PTFE-lined equipment as described in claim 1, characterized in that: The detection mechanism (200) includes a placement seat (210), a microcontroller (220) disposed in the inner cavity of the placement seat (210), a connecting sleeve (230) fixedly connected to the bottom of the placement seat (210), and an ultrasonic probe (240) disposed in the inner cavity of the connecting sleeve (230).
3. The PTFE lining thickness detection device for PTFE-lined equipment as described in claim 2, characterized in that: The back of the placement seat (210) is fixedly connected to the screw sleeve (150). The ultrasonic probe (240) is connected to the microcontroller (220) via a circuit. Slide seats (211) are fixedly connected to both sides of the back of the placement seat (210). Slide rails (121) are fixedly connected to both sides of the front of the support (120). The slide seats (211) are located on the surface of the slide rails (121) and are slidably connected to the surface of the slide rails (121).
4. The PTFE lining thickness detection device for PTFE-lined equipment as described in claim 1, characterized in that: The top of the base plate (110) is fixedly connected with an anti-slip pad, and the bottom of the screw (140) is movably connected to the top of the base plate (110) through a bearing.
5. The PTFE lining thickness detection device for PTFE-lined equipment as described in claim 2, characterized in that: The inner cavity of the spring (310) is provided with a limiting cylinder (311), and a sliding rod is slidably connected to the inner cavity of the limiting cylinder (311). The top of the limiting cylinder (311) is fixedly connected to the placement seat (210), and the bottom of the sliding rod is fixedly connected to the connecting plate (320).