Test piece for detecting heating surface of high-temperature equipment
By designing test pieces for inspecting the heated surface of high-temperature equipment, the problems of difficult and inefficient inspection in existing technologies have been solved, efficient inspection without stopping or cutting the equipment has been achieved, and more accurate aging grade assessment has been provided.
Patent Information
- Application Number
- CN202422897398.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-27
- Publication Date
- 2025-10-28
- Estimated Expiration
- 2034-11-27
AI Technical Summary
Existing high-temperature equipment heating surface aging level inspection requires the equipment to be shut down or cut off, which makes the inspection difficult and inefficient.
A test piece for inspecting the heated surface of high-temperature equipment is designed, which includes a tube body, a test block and a baffle. By arranging a receiving groove and a limit groove on the tube body, the test block and the baffle are firmly installed, so that inspection can be carried out without cutting equipment.
It improves the convenience and efficiency of detection, can replace equipment sampling, and has accurate test results without affecting the normal operation of the equipment.
Smart Images
Figure CN223485890U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of pressure equipment inspection and testing technology, and in particular to test specimens for the heated surfaces of high-temperature equipment. Background Technology
[0002] Aging level testing of the heated surfaces of high-temperature equipment is an important means of assessing the safety and service life of the equipment. Aging level testing typically involves multiple inspections and tests to comprehensively evaluate the condition of the heated surfaces.
[0003] The existing testing of the aging level of the heated surface of high-temperature equipment requires a complex process during the shutdown or maintenance of the entire system. The testing is usually carried out using a variety of non-destructive testing methods, or by cutting the equipment into test blocks and analyzing the test blocks.
[0004] The existing methods for testing the aging level of the heated surface of high-temperature equipment present a significant challenge in terms of testing difficulty. Utility Model Content
[0005] Therefore, the purpose of this application is to provide a test specimen for the heated surface of high-temperature equipment, which has the advantages of being easy and convenient to test.
[0006] One aspect of this application provides a test specimen for the heated surface of a high-temperature device, including a tube body, a test block, and a baffle.
[0007] The tube body is provided with a plurality of receiving grooves along its length, the receiving grooves including channel grooves and limiting grooves;
[0008] The two sides of the channel groove face the inner and outer sides of the tube body respectively; the limiting groove is located inside the tube body, and the two limiting grooves are located on both sides of the channel groove respectively;
[0009] The test block includes an arc-shaped portion and an ear portion, with the two ear portions located on both sides of the arc-shaped portion; the ear portions are fitted into the limiting groove for limiting.
[0010] The baffle is nested within the receiving groove; the test block and the baffle are stacked together within the receiving groove of the tube, with one end of the baffle flush with one end of the tube.
[0011] The stop bar is used to block the test block.
[0012] The high-temperature equipment heat-receiving surface test specimens described in this application offer greater convenience and ease of testing compared to existing technologies. Firstly, the tube body serves as a supporting and stable foundation structure, securely mounting the test block and baffles to ensure stability when the test block is placed inside the high-temperature equipment. Secondly, multiple receiving slots are evenly distributed along the outer wall of the tube body, allowing multiple test blocks to be distributed around the tube after installation. Since the high temperature affects different locations on the tube surface differently, and the heating conditions vary at different angles, different test blocks represent different heating conditions at different angles and different aging conditions of the heat-receiving surface. Testing different test blocks on the tube body yields different aging conditions of the heat-receiving surface. Thirdly, the baffles serve at least two purposes: firstly, they restrain the test block, preventing it from loosening or detaching; secondly, they form a complete tube with the test block and tube body, maintaining consistency with other tubes in appearance and performance, thus achieving excellent testing results that can be used to represent the most accurate assessment.
[0013] The test specimen for the heated surface of high-temperature equipment provided in this application does not require cutting the high-temperature equipment or shutting it down for maintenance. It can replace the separate sampling of high-temperature equipment for testing, thus achieving high testing efficiency. Moreover, testing is easy because it is performed separately using test blocks.
[0014] Furthermore, limiting strips are formed on both sides of the stop bar, and the two limiting strips are nested in the corresponding limiting grooves.
[0015] Furthermore, the test block is cut and bent into shape from the mother plate of the device under test.
[0016] Furthermore, the cross-section of the limiting groove is in the shape of a superior arc.
[0017] The cross-sections of the ear and the limiting strip are respectively curved and nested with the limiting groove.
[0018] Furthermore, the tube body is provided with a plurality of the receiving grooves;
[0019] The plurality of the receiving grooves are evenly distributed on the tube body;
[0020] The multiple receiving slots are of equal length, or the lengths of the multiple receiving slots are distributed in an arithmetic sequence.
[0021] Furthermore, it also includes connecting rods and clamps;
[0022] The connecting rod is fixed to the outer wall of the pipe body, and the clamp is fixed to the connecting rod.
[0023] Furthermore, the two connecting rods are distributed along the axial direction of the tube body on the tube body;
[0024] Each of the connecting rods is fixed with the clamp;
[0025] The two clamps are arranged in parallel.
[0026] Furthermore, the cross-section of the clamp is C-shaped.
[0027] Furthermore, the test block and the baffle are concentric circles with the tube body and have the same diameter.
[0028] Furthermore, the length of the receiving groove is less than 2 / 3 of the length of the tube body.
[0029] To better understand and implement this application, the following detailed description is provided in conjunction with the accompanying drawings. Attached Figure Description
[0030] Figure 1 A three-dimensional structural schematic diagram of a test specimen for the heated surface of a high-temperature device exemplified in this application;
[0031] Figure 2 This is a front view of a test specimen for the heated surface of a high-temperature device, which is an example of this application.
[0032] Figure 3 A top view of a test specimen for the heated surface of a high-temperature device exemplified in this application;
[0033] Figure 4 This is a three-dimensional structural schematic diagram of the heat-receiving surface test specimen of the high-temperature equipment exemplified in this application from another perspective;
[0034] Figure 5 This is a three-dimensional structural diagram of a test specimen (excluding baffles) for the heated surface of a high-temperature device, which is an example of this application. Detailed Implementation
[0035] In the description of this application, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are used only for the convenience of describing this application 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, and therefore should not be construed as a limitation on this application. In the description of this application, unless otherwise stated, "a plurality of" means two or more.
[0036] See also Figures 1-5As shown, this application exemplifies a test specimen for the heated surface of a high-temperature device, comprising a tube body 10, a test block 20, and a baffle 30;
[0037] The tube body 10 is provided with a plurality of receiving grooves A along its length direction. The receiving grooves A include channel grooves A1 and limiting grooves A2.
[0038] The two sides of the channel groove A1 face the inner and outer sides of the tube body 10 respectively; the limiting groove A2 is located inside the tube body 10, and the two limiting grooves A2 are located on both sides of the channel groove A1 respectively;
[0039] The test block 20 includes an arc-shaped portion 21 and an ear portion 22, with the two ears 22 located on both sides of the arc-shaped portion 21 respectively; the ear portion 22 is fitted into the limiting groove A2 for limiting.
[0040] The baffle 30 is nested in the receiving groove A; the test block 20 and the baffle 30 are stacked in the receiving groove A of the tube body 10, and one end of the baffle 30 is flush with one end of the tube body 10.
[0041] The baffle 30 is used to block the test block 20.
[0042] The test specimens for the heated surfaces of high-temperature equipment described in this application are more convenient and easier to test compared to existing technologies. First, the tube body 10 serves as a supporting and stable foundation structure, securely installing and fixing the test block 20 and the baffle 30 to ensure the test block 20 remains stable when placed inside the high-temperature equipment. Second, multiple receiving grooves A are evenly distributed along the outer wall of the tube body 10, allowing the test blocks 20 to be distributed around the tube body 10 after installation. Since high temperature affects different locations on the surface of the tube body 10 differently, and the heating conditions vary at different angles on the surface, different test blocks 20 represent different heating conditions at different angles and different aging conditions of the heated surfaces. Therefore, testing different test blocks 20 on the tube body 10 yields different aging conditions of the heated surfaces. Furthermore, the baffle 30 serves at least two purposes: firstly, it blocks the test block 20 to prevent it from loosening or falling off; secondly, it forms a complete tube together with the test block 20 and the tube body 10, thus maintaining consistency with other tubes in appearance and performance, thereby achieving a good testing effect, and the test results can be used to replace the most realistic results.
[0043] The test specimen for the heated surface of high-temperature equipment provided in this application does not require cutting the high-temperature equipment or shutting it down for maintenance. It can replace the separate sampling of high-temperature equipment for testing, thus achieving high testing efficiency. Moreover, testing can be performed separately using the test block 20, making the testing easy.
[0044] To improve the accuracy and reliability of the testing, multiple test specimens for the heated surfaces of the high-temperature equipment are provided.
[0045] In some preferred embodiments, limiting strips 32 are formed on both sides of the stop strip 30, and the two limiting strips 32 are nested in the corresponding limiting grooves A2.
[0046] In some preferred embodiments, the cross-sectional shape of the limiting strip 32 is the same as the cross-sectional shape of the limiting groove A2, so that the limiting strip 32 is nested and assembled in the limiting groove A2.
[0047] During assembly, the stop bar 30 is assembled along the axial direction of the tube body 10, and the two limiting bars 32 are aligned with the two limiting grooves A2 respectively to achieve the tightness of the assembly.
[0048] In some preferred embodiments, the test block 20 is cut and bent into shape from the motherboard of the device under test. In other words, the material of the test block 20 is the same as that of the device under test, thereby ensuring that the basis of the test is consistent.
[0049] like Figure 3 As shown, in some preferred embodiments, the cross-section of the limiting groove A2 is an arc shape;
[0050] The cross-sections of the ear portion 22 and the limiting strip 32 are respectively curved and are nested and assembled with the limiting groove A2.
[0051] In some other preferred embodiments, the cross-section of the limiting groove A2 is rectangular, and the cross-sections of the ear portion 22 and the limiting strip 32 are also rectangular.
[0052] Among the two cross-sectional shapes of the limiting groove A2 described above, an arc-shaped and a rectangular shape are provided respectively. In addition, it can also be a triangle, trapezoid, etc.
[0053] In this application, the superior arc shape is preferred, as it ensures the tightness of the assembly, effectively preventing loosening, and also facilitates installation. The cross-sectional shapes of the limiting groove A2 and the receiving groove A are shown in the attached figure.
[0054] In some preferred embodiments, the number of receiving slots A is odd. In the embodiment shown in the accompanying drawings, the number of receiving slots A is five. An odd number of receiving slots A corresponds to different angular positions of the wall surface. Compared to an even number, an odd number exhibits asymmetry, thus providing greater representativeness and better representing the wall surface conditions at different angles. An even number of receiving slots A, due to their symmetry, always has omissions, making them less comprehensive than an odd number.
[0055] In some other preferred embodiments, the number of receiving slots A is even.
[0056] In some preferred embodiments, the tube body 10 is provided with a plurality of the receiving grooves A;
[0057] The plurality of the receiving grooves A are evenly distributed on the tube body 10;
[0058] In some designs, the multiple receiving slots A are of equal length;
[0059] Alternatively, in some other schemes, the lengths of the plurality of receiving slots A are distributed in an arithmetic sequence.
[0060] It should be noted that the arithmetic sequence distribution mentioned here does not necessarily require that all adjacent receiving slots A have the same length difference. For example, in a sequence with a starting length of 20, an ending length of 60, and a common difference of 5, the sequence is 20, 25, 30, 35, 40, 45, 50, 55, 60. In this example, there are a total of 9 receiving slots A, and two of the adjacent receiving slots A have lengths of 20 and 60 respectively.
[0061] In some designs, the length difference between adjacent receiving tanks A is the same, thus creating a continuous flow. For example, a set of receiving tanks A has lengths of 20, 25, 30, 35, 40, 45, 40, 35, 30, and 25. In this example, there are 10 receiving tanks A.
[0062] In some preferred embodiments, a connecting rod 41 and a clamp 42 are also included;
[0063] The connecting rod 41 is fixed to the outer wall of the pipe body 10, and the clamp 42 is fixed to the connecting rod 41.
[0064] A connecting rod 41 and a clamp 42 are provided for assembling the tube body 10 into the device under test. The clamp 42 is used for assembly and connection.
[0065] In some preferred embodiments, the two connecting rods 41 are distributed along the axial direction of the tube 10 on the tube 10;
[0066] Each of the connecting rods 41 is fixed with the clamp 42;
[0067] The two clamps 42 are arranged in parallel.
[0068] The two connecting rods 41 are on the same straight line along the axis, thus ensuring that the entire tube 10 is in a horizontal or vertical position when installed inside the device under test.
[0069] In some preferred embodiments, the clamp 42 has a C-shaped cross-section. This shape ensures stable installation.
[0070] In some preferred embodiments, the test block 20 and the baffle 30 are concentric circles with the tube body 10 and have the same diameter.
[0071] In this application, the tube body 10, the test block 20, and the baffle 30 are all arc-shaped structures, with the tube body 10 being the entire arc. The inner diameter of the tube body 10 is the same as the inner diameter of the arc containing the inner wall of the test block 20 and the inner diameter of the arc containing the inner wall of the baffle 30; the outer diameter of the tube body 10 is the same as the outer diameter of the arc containing the outer wall of the test block 20 and the outer diameter of the arc containing the baffle 30.
[0072] The aforementioned equal diameter refers to the fact that the outer diameter and inner diameter of the three components are equal. Therefore, when the tube body 10, test block 20, and baffle 30 are assembled together, they form a smoothly transitioning tube. In other words, it is equivalent to the state of the tube body 10 before it is cut to form the receiving groove A.
[0073] In some preferred embodiments, the length of the receiving groove A is less than 2 / 3 of the length of the tube body 10.
[0074] In some preferred embodiments, the length of the receiving groove A is half the length of the tube body 10, and all receiving grooves A are of equal length. In this case, the test block 20 is placed in the middle of the receiving groove A.
[0075] In some preferred embodiments, the length ratio of the test block 20 to the baffle 30 is 1:5 to 1:10.
[0076] In some preferred embodiments, the test block, the baffle, and the tube are made of the same material. That is, they are all cut and manufactured from the motherboard of the device under test.
[0077] The working principle of the heat-receiving surface test specimen of the exemplary high-temperature equipment in this application is as follows:
[0078] First, this application can be applied to feature transfer scenarios. In other words, it can be used for aging detection based on feature transfer.
[0079] Secondly, after assembly, the tube is installed inside the device under test using clamp 42. If the tube inside the device under test is vertical, the tube body 10 will be in a vertical position after installation; if the tube inside the device under test is horizontal, the tube body 10 will be in a horizontal position after installation.
[0080] Next, one or more heat-receiving surface test specimens of the high-temperature equipment of this application are installed inside the equipment under test. In the example shown in the attached figure, each heat-receiving surface test specimen of the high-temperature equipment has 5 test blocks 20 installed. After the equipment under test has been running for a period of time, the heat-receiving surface test specimens of the high-temperature equipment are removed from the equipment, and the aging level of their heat-receiving surfaces is tested.
[0081] After the test specimen for the heated surface of the high-temperature equipment in this application is placed in the equipment to be tested, there are two main directions of hot air flow: one is outside the pipe, and the other is inside the pipe.
[0082] After the test is completed, the test specimen on the heated surface of the high-temperature equipment is placed back into the equipment. After a period of time, it is taken out again.
[0083] Each heat-receiving surface test piece of high-temperature equipment was numbered, each test block was marked 20, and its test results were recorded.
[0084] Finally, the test results are used as the aging level test results for different heated surfaces of the device under test.
[0085] The embodiments described above are merely examples of several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these modifications and improvements all fall within the protection scope of this application.
Claims
1. A test specimen for the heated surface of a high-temperature device, characterized in that: Including pipe body, test block, retaining bar; The tube body is provided with a plurality of receiving grooves along its length, the receiving grooves including channel grooves and limiting grooves; The two sides of the channel groove face the inner and outer sides of the tube body respectively; the limiting groove is located inside the tube body, and the two limiting grooves are located on both sides of the channel groove respectively; The test block includes an arc-shaped portion and an ear portion, with the two ear portions located on both sides of the arc-shaped portion; the ear portions are fitted into the limiting groove for limiting. The baffle is nested within the receiving groove; the test block and the baffle are stacked together within the receiving groove of the tube, with one end of the baffle flush with one end of the tube. The stop bar is used to block the test block.
2. The test specimen for the heated surface of a high-temperature equipment according to claim 1, characterized in that: Limiting strips are formed on both sides of the stop bar, and the two limiting strips are nested in the corresponding limiting grooves.
3. The test specimen for the heated surface of a high-temperature equipment according to claim 2, characterized in that: The test block is cut and bent into shape from the motherboard of the device under test.
4. The test specimen for the heated surface of a high-temperature equipment according to claim 3, characterized in that: The cross-section of the limiting groove is an arc shape; The cross-sections of the ear and the limiting strip are respectively curved and nested with the limiting groove.
5. The test specimen for the heated surface of a high-temperature equipment according to claim 3, characterized in that: The tube body is provided with a plurality of the receiving slots; The plurality of the receiving grooves are evenly distributed on the tube body; The multiple receiving slots are of equal length, or the lengths of the multiple receiving slots are distributed in an arithmetic sequence.
6. The test specimen for the heated surface of a high-temperature equipment according to claim 3, characterized in that: It also includes connecting rods and clamps; The connecting rod is fixed to the outer wall of the pipe body, and the clamp is fixed to the connecting rod.
7. The test specimen for the heated surface of a high-temperature equipment according to claim 6, characterized in that: The two connecting rods are distributed along the axial direction of the tube body on the tube body; Each of the connecting rods is fixed with the clamp; The two clamps are arranged in parallel.
8. The test specimen for the heated surface of a high-temperature equipment according to claim 7, characterized in that: The clamp has a C-shaped cross-section.
9. The test specimen for the heated surface of a high-temperature equipment according to any one of claims 1-8, characterized in that: The test block and the baffle are concentric circles with the tube body and have the same diameter.
10. The test specimen for the heated surface of a high-temperature equipment according to claim 9, characterized in that: The length of the receiving groove is less than 2 / 3 of the length of the tube body.