Boiler part fixing tool for multi-factor coupling corrosion test

Abstract

The invention belongs to the technical field of boiler corrosion testing, and particularly relates to a boiler component fixing tool for multi-factor coupling corrosion testing, the boiler component fixing tool comprises a bottom plate, one side of the bottom plate is fixedly connected with a supporting frame, the top of the supporting frame is provided with a clamping and fixing module for fixing a boiler component, the clamping and fixing module comprises a base plate, and the base plate is fixedly connected with the supporting frame; the base plate is fixedly connected to the top of the supporting frame through bolts. The rotating seat is fixedly connected to the base plate, and a lower rotating arm is rotationally connected to the rotating seat; the shaft rod is rotationally connected to the end, away from the rotating base, of the lower rotating arm. By arranging the clamping and fixing module, the rotating rod and the rotary table, the clamping and fixing module can realize effective clamping of boiler parts, the efficiency is high, the use effect is good, and the technical problems that an existing boiler part corrosion resistance test tool is poor in clamping adaptability, low in test efficiency, prone to damage a test piece and the like are solved.

Description

Technical Field

[0001] This invention relates to the field of boiler corrosion testing technology, specifically to a boiler component fixing fixture for multi-factor coupled corrosion testing. Background Technology

[0002] High-temperature corrosion is a critical issue affecting the lifespan and safe, stable operation of industrial boilers, especially high-temperature corrosion caused by sulfur-containing media such as H2S, which can lead to the failure of key components such as boiler water-cooled walls and superheaters. To develop boiler components and coating materials with excellent corrosion resistance, it is necessary to simulate actual service environments through multi-factor coupled corrosion testing to evaluate the corrosion resistance of components. The existing fixtures used for corrosion testing of boiler components have the following drawbacks: First, the current fixtures use a single fixing method, which is difficult to adapt to boiler components of different sizes and specifications, and the clamping stability is poor, making displacement easy to occur during testing and affecting the accuracy of the test data. Second, the fixtures lack a flexible station switching structure, and can only process a small number of components per test, resulting in low testing efficiency. Third, the rigid contact between the clamped components and the boiler test pieces can easily cause damage to the surface of the components, and cannot buffer the vibrations generated during testing, further affecting the test accuracy. Therefore, these fixtures have certain defects and shortcomings and need to be improved. Summary of the Invention

[0003] To address the shortcomings of existing technologies, this invention provides a boiler component fixing fixture for multi-factor coupled corrosion testing, which solves the problems of poor clamping adaptability, low testing efficiency, and easy damage to test pieces in existing boiler component corrosion resistance testing fixtures.

[0004] To achieve the above objectives, the present invention specifically adopts the following technical solution: A boiler component fixing fixture for multi-factor coupled corrosion testing includes a base plate, a support frame fixedly connected to one side of the base plate, and a clamping and fixing module for fixing the boiler component on the top of the support frame. The clamping and fixing module includes: a base plate, which is fixedly connected to the top of the support frame by bolts; a rotating seat, which is fixedly connected to the base plate and has a lower rotating arm rotatably connected to it; a shaft, which is rotatably connected to the end of the lower rotating arm away from the rotating seat and has an upper rotating arm rotatably connected to it. A pressure plate is rotatably connected to the end of the upper rotating arm away from the shaft. The center of the pressure plate is rotatably connected to a bracket fixed to the upper surface of the base plate. A clamping component is provided at the end of the pressure plate away from the upper rotating arm. An L-shaped support plate is fixedly connected to one side of the base plate. A cylinder is rotatably connected to a support rod fixed to the upper surface of the L-shaped support plate. The output end of the cylinder is rotatably connected to the shaft through a rotary joint. When the cylinder extends or retracts, it can control the lower and upper rotating arms to flip, thereby controlling the pressure plate to rotate. The clamping component at the end of the pressure plate achieves the fixing and clamping of the boiler component.

[0005] Furthermore, the clamping component includes a clamping block; two damping rods, which are symmetrically fixed to one side of the clamping block; and a protective cap, which is fixedly connected to the end of the damping rod away from the clamping block. The damping rod is inserted into a corresponding hole in the pressure plate, and a damping spring is sleeved on the damping rod. The two ends of the damping spring abut against the pressure plate and the clamping block, respectively, and one side of the protective cap abuts against the pressure plate.

[0006] Furthermore, the substrate is provided with two symmetrically distributed coupling corrosion test bearing stations, both of which are fixed to the substrate by support columns.

[0007] Furthermore, the base plate is rotatably connected to a rotating rod on one side of the support frame, and a turntable is fixedly connected to the upper end of the rotating rod. The upper surface of the turntable is provided with an array of carriers distributed in the circumferential direction, and the boiler components are mounted on the carriers.

[0008] Furthermore, a rotation control module is provided between the base plate and the rotating rod to realize the rotation drive of the rotating rod and the turntable. The rotation control module includes a motor, a worm gear and a worm wheel. The motor is mounted on the upper surface of the base plate, the worm gear is coaxially fixedly connected to one side of the motor, and the worm wheel is fixedly connected to the rotating rod and meshes with the worm gear.

[0009] Furthermore, the rotation control module also includes a support base fixedly connected to the upper surface of the base plate, and the worm gear is rotatably connected to the support base.

[0010] Compared with the prior art, the present invention provides a boiler component fixing fixture for multi-factor coupled corrosion testing, which has the following beneficial effects: This invention utilizes a cylinder-driven linkage structure to clamp and fix the module. When the cylinder extends or retracts, it controls the rotation of the lower and upper rotating arms, thereby controlling the rotation of the pressure plate. The clamping components at the end of the pressure plate achieve the fixed clamping of the boiler components. The clamping components are elastically designed to achieve stable clamping of boiler components of different sizes. The design of the damping spring and damping rod avoids damage to the surface of the test piece and buffers vibrations during the test, improving the accuracy of the test data. At the same time, two symmetrically distributed coupled corrosion test bearing stations can be tested simultaneously, significantly improving test efficiency.

[0011] This invention achieves precise and controllable rotation of the turntable through the worm gear transmission structure of the rotation control module. The carrier array distribution design facilitates batch placement of boiler components, and continuous testing is achieved through turntable switching, reducing the frequency of manual handling and lowering the difficulty of operation. At the same time, the coordinated design of the clamping and fixing module and the turntable ensures both stability during testing and improves testing flexibility. It is suitable for multi-factor coupled corrosion testing of boiler components of multiple specifications and batches, and has strong practicality and promotional value. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the structure of the present invention; Figure 2 This is a schematic diagram of the clamping and fixing module in this invention; Figure 3 For the present invention Figure 2 Enlarged view of the structure at point A in the middle; Figure 4 This is a schematic diagram of the rotation control module in this invention.

[0013] In the diagram: 1. Base plate; 2. Support frame; 3. Clamping and fixing module; 301. Base plate; 302. Rotary seat; 303. Lower rotating arm; 304. L-shaped support plate; 305. Support rod; 306. Cylinder; 307. Shaft; 308. Upper rotating arm; 309. Pressure plate; 3010. Bracket; 3011. Coupled corrosion test bearing station; 3012. Support column; 3013. Damping rod; 3014. Clamping block; 3015. Damping spring; 3016. Protective cap; 4. Turntable; 5. Carrier; 6. Rotating rod; 7. Rotation control module; 701. Motor; 702. Worm gear; 703. Support seat; 704. Worm wheel. Detailed Implementation

[0014] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention. Example

[0015] like Figures 1-4As shown in one embodiment of the present invention, a boiler component fixing fixture for multi-factor coupled corrosion testing includes a base plate 1. A support frame 2 is fixedly connected to one side of the base plate 1, and a clamping and fixing module 3 for fixing the boiler component is provided on the top of the support frame 2. The clamping and fixing module 3 includes: a base plate 301, which is fixedly connected to the top of the support frame 2 by bolts; a rotating seat 302, which is fixedly connected to the base plate 301, and a lower rotating arm 303 is rotatably connected to the rotating seat 302; and a shaft 307, which is rotatably connected to the end of the lower rotating arm 303 away from the rotating seat 302, and an upper rotating arm 308 is rotatably connected to the shaft 307. A pressure plate 309 is rotatably connected to the end of the 08 away from the shaft 307. The center of the pressure plate 309 is rotatably connected to the bracket 3010 fixed on the upper surface of the base plate 301. A clamping component is provided at the end of the pressure plate 309 away from the upper rotating arm 308. An L-shaped support plate 304 is fixedly connected to one side of the base plate 301. A cylinder 306 is rotatably connected to the support rod 305 fixed on the upper surface of the L-shaped support plate 304. The output end of the cylinder 306 is rotatably connected to the shaft 307 through a rotary joint. When the cylinder 306 extends or retracts, it can control the lower rotating arm 303 and the upper rotating arm 308 to flip, thereby controlling the pressure plate 309 to rotate. The boiler component is fixedly clamped by the clamping component at the end of the pressure plate 309.

[0016] It should be noted that the base plate 1 is the bottom support part of the device, used for the installation and bearing of other components. The support frame 2 is used to support the clamping and fixing module 3. The clamping and fixing module 3 realizes the clamping and fixing of boiler components. The clamping and fixing module 3 includes a cylinder 306, a lower rotating arm 303, and an upper rotating arm 308. When the cylinder 306 extends or retracts, its output end drives the shaft 307 to move through the rotary joint. The shaft 307 connects the ends of the lower rotating arm 303 and the upper rotating arm 308. Since the other end of the lower rotating arm 303 is hinged to the rotating seat 302, the displacement of the shaft 307 will drive the lower rotating arm 303 to rotate around the rotating seat 302. 02. Perform a flipping motion; synchronously, the shaft 307 drives one end of the upper rotating arm 308 to move with the shaft 307, and the other end of the upper rotating arm 308 is hinged to the pressure plate 309. The center of the pressure plate 309 is hinged to the base plate 301 through the bracket 3010, forming a lever structure. The coordinated flipping of the lower rotating arm 303 and the upper rotating arm 308 will be converted into the rotation of the pressure plate 309 around the bracket 3010. Finally, the clamping component at the end of the pressure plate 309 will clamp or release the boiler component. The core is to use the linkage mechanism to convert the linear motion of the cylinder 306 into the rotational clamping motion of the clamping component, so as to ensure the stability and controllability of the clamping action.

[0017] like Figure 2 and Figure 3As shown, in some embodiments, the clamping component includes a clamping block 3014; two damping rods 3013 are provided, and the two damping rods 3013 are symmetrically fixed to one side of the clamping block 3014; a protective cap 3016 is fixedly connected to one end of the damping rod 3013 away from the clamping block 3014, and the damping rod 3013 is inserted into the corresponding hole of the pressure plate 309. A damping spring 3015 is sleeved on the damping rod 3013, and the two ends of the damping spring 3015 abut against the pressure plate 309 and the clamping block 3014 respectively. One side of the protective cap 3016 abuts against the pressure plate 309.

[0018] It should be noted that the clamping block 3014 is inserted into the corresponding holes of the pressure plate 309 via two symmetrically distributed damping rods 3013. The damping springs 3015 sleeved on the damping rods 3013 abut against the pressure plate 309 and the clamping block 3014 at both ends, forming an elastic support structure. When the pressure plate 309 drives the clamping component to apply pressure to the boiler component, the clamping block 3014 first contacts the surface of the component. As the pressure plate 309 continues to apply force, the damping springs 3015 are compressed, and the damping rods 3013 move along the holes of the pressure plate 309. The sliding mechanism utilizes the elastic deformation of the spring to absorb the impact of the clamping force, avoiding damage to the component surface caused by rigid contact. At the same time, the combination of the damping rod 3013 and the damping spring 3015 can buffer the vibration generated during the test, offset the vibration energy through elastic deformation, prevent the vibration from being transmitted to the component and causing displacement, and ensure test accuracy. The protective cap 3016, by abutting against the pressure plate 309, limits the sliding stroke of the damping rod 3013, preventing the damping rod 3013 from disengaging from the hole in the pressure plate 309, and ensuring structural stability.

[0019] like Figure 1 and Figure 2 As shown, in some embodiments, two symmetrically distributed coupled corrosion test bearing stations 3011 are provided on the substrate 301, and both coupled corrosion test bearing stations 3011 are fixed to the substrate 301 by support columns 3012.

[0020] It should be noted that two symmetrically distributed coupled corrosion test bearing stations 3011 are fixed on the substrate 301 by support columns 3012. The support columns 3012 provide a stable support foundation for the bearing stations. The coupled corrosion test bearing stations 3011 are used to install heating, liquid spraying, electrochemical monitoring and other devices to realize corrosion detection of boiler equipment and to test the clamped boiler equipment.

[0021] like Figure 1 As shown, in some embodiments, the base plate 1 is rotatably connected to a rotating rod 6 on one side of the support frame 2, and a turntable 4 is fixedly connected to the upper end of the rotating rod 6. The upper surface of the turntable 4 is provided with an array of carriers 5 distributed in the circumferential direction, and the boiler components are disposed on the carriers 5.

[0022] It should be noted that the lower end of the rotating rod 6 is rotatably connected to the base plate 1, and the upper end is fixed to the turntable 4. The turntable 4 can rotate synchronously with the rotating rod 6. The carriers 5 distributed in a circumferential array on the surface of the turntable 4 are used to pre-place the boiler components to be tested, forming a batch component storage layout. When it is necessary to switch test components, the rotating rod 6 is driven to rotate the turntable 4, so that the components on different carriers 5 are rotated sequentially into the clamping range of the clamping and fixing module 3, thereby realizing the rapid switching of test components.

[0023] like Figure 1 and Figure 4 As shown, in some embodiments, a rotation control module 7 is provided between the base plate 1 and the rotating rod 6 to realize the rotation drive of the rotating rod 6 and the turntable 4. The rotation control module 7 includes a motor 701, a worm 702 and a worm wheel 704. The motor 701 is mounted on the upper surface of the base plate 1, the worm 702 is coaxially fixedly connected to one side of the motor 701, and the worm wheel 704 is fixedly connected to the rotating rod 6 and meshes with the worm 702.

[0024] It should be noted that the motor 701 is mounted on the base plate 1. When working, the output torque drives the coaxially fixed worm 702 to rotate. The worm 702 meshes with the worm wheel 704 fixed on the rotating rod 6. Since the worm 702 and worm wheel 704 transmission has the characteristics of speed reduction and torque increase and one-way self-locking, the rotational motion of the worm 702 is converted into the low-speed rotational motion of the worm wheel 704, which in turn drives the rotating rod 6 to rotate synchronously, and finally realizes the smooth rotation of the turntable 4.

[0025] like Figure 4 As shown, in some embodiments, the rotation control module 7 further includes a support base 703 fixedly connected to the upper surface of the base plate 1, and the worm gear 702 is rotatably connected to the support base 703.

[0026] It should be noted that the support seat 703 is used to support the worm gear 702, so as to achieve stable rotation of the worm gear 702.

[0027] The working principle and usage steps of this invention are as follows: First, the boiler components to be tested are placed in the array of carriers 5 on the turntable 4, ensuring that the components are placed stably and avoiding tilting. Then, the motor 701 of the rotation control module 7 is started, and the worm gear 702 and worm wheel 704 mesh to drive the rotating rod 6 and the turntable 4 to rotate, rotating the carrier 5 containing the boiler components to one side of the coupling corrosion test bearing station 3011 of the clamping and fixing module 3. Then, the cylinder 306 is started, and the output end of the cylinder 306 extends and retracts to drive the lower rotating arm 303 to rotate around the rotating seat 302, and simultaneously drive the upper rotating arm 308 to push the pressure plate 309 to rotate around the bracket 3010, so that the clamping block 3014 at the end of the pressure plate 309 presses the component. The damping spring 3015 and the damping rod 3013 buffer the clamping force to avoid damage to the surface of the component. The two coupling corrosion test bearing stations 3011 simultaneously carry out multi-factor coupling corrosion tests. During the test, the clamped component can buffer vibration to ensure data accuracy.

[0028] Finally, it should be noted that the above descriptions are merely preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A fixture for fixing boiler components in a multi-factor coupled corrosion test, comprising a base plate (1), characterized in that: A support frame (2) is fixedly connected to one side of the base plate (1), and a clamping and fixing module (3) for fixing boiler components is provided on the top of the support frame (2). The clamping and fixing module (3) includes: The substrate (301) is fixedly connected to the top of the support frame (2) by bolts; A rotating seat (302) is fixedly connected to a base plate (301), and a lower rotating arm (303) is rotatably connected to the rotating seat (302). A shaft (307) is rotatably connected to one end of a lower rotating arm (303) away from the rotating seat (302), and an upper rotating arm (308) is rotatably connected to the shaft (307). A pressure plate (309) is rotatably connected to one end of the upper rotating arm (308) away from the shaft (307). The center of the pressure plate (309) is rotatably connected to a bracket (3010) fixed to the upper surface of a base plate (301). A clamping component is provided at one end of the pressure plate (309) away from the upper rotating arm (308). Furthermore, an L-shaped support plate (304) is fixedly connected to one side of the base plate (301). A cylinder (306) is rotatably connected to a support rod (305) fixed on the upper surface of the L-shaped support plate (304). The output end of the cylinder (306) is rotatably connected to the shaft (307) through a rotary joint. When the cylinder (306) extends or retracts, it can control the lower rotating arm (303) and the upper rotating arm (308) to flip, thereby controlling the pressure plate (309) to rotate. The boiler components are fixedly clamped through the clamping component at the end of the pressure plate (309).

2. The boiler component fixing fixture for multi-factor coupled corrosion testing according to claim 1, characterized in that: Clamping components include Clamping block (3014); Two damping rods (3013) are provided, and the two damping rods (3013) are symmetrically fixed on one side of the clamping block (3014); A protective cap (3016) is fixedly connected to the end of the damping rod (3013) away from the clamping block (3014), and the damping rod (3013) is inserted into the corresponding hole of the pressure plate (309). A damping spring (3015) is sleeved on the damping rod (3013), and the two ends of the damping spring (3015) abut against the pressure plate (309) and the clamping block (3014) respectively. One side of the protective cap (3016) abuts against the pressure plate (309).

3. The boiler component fixing fixture for multi-factor coupled corrosion testing according to claim 1, characterized in that: The substrate (301) is provided with two symmetrically distributed coupled corrosion test bearing stations (3011), and both coupled corrosion test bearing stations (3011) are fixed to the substrate (301) by support columns (3012).

4. The boiler component fixing fixture for multi-factor coupled corrosion testing according to claim 1, characterized in that: The base plate (1) is rotatably connected to a rotating rod (6) on one side of the support frame (2), and a turntable (4) is fixedly connected to the upper end of the rotating rod (6). The upper surface of the turntable (4) is provided with an array of carriers (5) in the circumferential direction, and the boiler components are placed on the carriers (5).

5. The boiler component fixing fixture for multi-factor coupled corrosion testing according to claim 4, characterized in that: A rotation control module (7) is provided between the base plate (1) and the rotating rod (6) to realize the rotation drive of the rotating rod (6) and the turntable (4). The rotation control module (7) includes a motor (701), a worm (702) and a worm wheel (704). The motor (701) is installed on the upper surface of the base plate (1), the worm (702) is coaxially fixedly connected to one side of the motor (701), and the worm wheel (704) is fixedly connected to the rotating rod (6) and meshes with the worm (702).

6. The boiler component fixing fixture for multi-factor coupled corrosion testing according to claim 5, characterized in that: The rotation control module (7) also includes a support base (703) fixedly connected to the upper surface of the base plate (1), and the worm gear (702) is rotatably connected to the support base (703).

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