Efficient measuring device for mechanical damage of small-diameter pipe
By designing an efficient measurement device for mechanical damage to small diameter tubes, using magnetic adsorption fixing seats and multi-axis measurement components, the problems of low measurement efficiency, low accuracy and safety hazards of internal mechanical damage in the boiler are solved, and a high-precision, convenient and safe measurement process is achieved.
Patent Information
- Application Number
- CN202510257631.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-05
- Publication Date
- 2025-04-29
AI Technical Summary
Measuring mechanical damage to small-diameter tubes inside the boiler has problems such as inefficiency, low accuracy and safety hazards, especially in areas where working positions are limited.
An efficient measuring device including a fixed seat, a first length measuring assembly, a second length measuring assembly and a depth measuring assembly are designed. The fixing seat is fixed on the small-diameter tube by magnetic adsorption, and the measuring assembly obtains plane and depth information of mechanical damage through axial and radial measurements.
The device improves the accuracy and efficiency of measurement, simplifies the measurement steps, avoids the safety hazards of tool dropping at high altitude, and significantly improves the accuracy and objectivity of the assessment of mechanical damage degree.
Smart Images
Figure CN119901187A_ABST
Abstract
Description
Technical Field
[0001] The disclosed embodiments belong to the technical field of boiler maintenance equipment, and specifically relate to an efficient measuring device for mechanical damage of small-diameter pipes. Background Art
[0002] Power station boilers are the core equipment of thermal power generation systems. They have been in service for a long time in complex working conditions of high temperature and high pressure. Their safe and stable operation is directly related to the reliability and economy of the entire power generation system. There are a large number of small-diameter pipes in the internal components of the boiler, such as cold ash hoppers, furnace water-cooled walls, low-temperature superheaters, low-temperature reheaters, economizers and other components. The length of small-diameter pipes can reach tens of thousands of meters. These pipes are prone to mechanical damage during infrastructure construction, daily operation, and maintenance due to various reasons such as personnel, equipment, and operating status. The pits caused by mechanical damage are more likely to deposit ash and slag, which facilitates corrosion. At the same time, mechanical damage reduces the effective bearing area of the pipe, increases the risk of pipe burst, threatens the reliable service of the boiler, and even causes safety risks in serious cases.
[0003] In the actual inspection process, mechanical damage brings great inconvenience to actual measurement due to its different shapes, especially in some areas with limited working positions. For example, when mechanical damage exists on the slope of the cold ash hopper, the inspector needs to first use a caliper to measure the length and width of the damaged pit, and then replace the depth gauge to measure the depth of the defect. It is difficult to operate on the slope and inefficient. In the case of the water-cooled wall of the furnace, the pipe is almost completely vertical to the ground. The inspector stands on a small platform at a height of tens of meters, which makes it difficult to carry out precise measurements efficiently. At the same time, it is also found that the tools are easy to fall off during on-site work, which poses certain safety hazards. The already uncomfortable working position also requires frequent replacement of measuring tools, which brings great inconvenience to the inspectors. Therefore, for mechanical damage, inspectors generally use visual evaluation methods to make judgments. Although visual evaluation is efficient, it is very subjective. This method is highly dependent on personnel experience and self-judgment. Different inspectors may have different qualitative evaluations of the same mechanical damage, and it is difficult to promote and sometimes difficult to convince. From a technical perspective, although there are 3D imaging technologies that can achieve efficient scanning and measurement, the equipment is often expensive and not portable enough to be used in the harsh working environment inside the boiler. Although traditional calipers and depth gauges can achieve measurement, they are inefficient and extremely inconvenient for on-site inspection personnel to implement.
[0004] In view of the above problems, it is necessary to propose an efficient measurement device for mechanical damage of small-diameter pipes that has a reasonable design and effectively solves the above problems. Summary of the invention
[0005] The embodiments of the present disclosure aim to solve at least one of the technical problems existing in the prior art and provide an efficient measuring device for mechanical damage of small-diameter pipes.
[0006] The disclosed embodiment provides an efficient measuring device for mechanical damage of a small-diameter pipe, comprising a fixing seat, a first length measuring component, a second length measuring component and a depth measuring component;
[0007] The fixing seat is used for magnetic adsorption and fixing to the mechanical damage area to be measured of the small-diameter tube;
[0008] The first end of the first length measuring component is movably disposed on the side wall of the fixing seat and is disposed along the axial direction of the small-diameter tube, and is used to measure the length dimension of the mechanical damage area to be measured in the axial direction of the small-diameter tube;
[0009] The second length measuring component is fixedly connected to the second end of the first length measuring component and is arranged along the radial direction of the small-diameter tube, and is used to measure the length dimension of the mechanical damage area to be measured in the radial direction of the small-diameter tube;
[0010] The depth measuring component is slidably disposed in the radial direction of the small-diameter tube and penetrates the second length measuring component, and is used to measure the depth dimension of the mechanical damage area to be measured.
[0011] Optionally, the first length measuring assembly includes a first scale rod and two first positioning rods slidably disposed on the first scale rod along a length direction of the first scale rod.
[0012] Optionally, a slide groove is provided on the side wall of the fixing seat, and a pulley is provided on the first end of the first scale rod, and the pulley is slidably disposed in the slide groove.
[0013] Optionally, the second length measuring assembly includes a second scale rod and two second positioning rods slidably disposed on the second scale rod along a length direction of the second scale rod.
[0014] Optionally, the depth measuring assembly includes a graduated sleeve, a connecting rod, an elastic member, a pressure head and a connecting rod head;
[0015] The connecting rod is inserted into the scale sleeve;
[0016] The pressure head is arranged at the first end of the connecting rod and is located outside the scale sleeve, and the connecting rod head is arranged at the second end of the connecting rod and is located outside the scale sleeve;
[0017] The elastic member is sleeved on the outer side of the second end of the connecting rod and is located in the scale sleeve; wherein,
[0018] When the depth dimension of the mechanical damage area to be measured needs to be measured, the pressure head is pressed, and the elastic member is compressed under the action of the pressure, and the scale sleeve is lifted up under the action of the reaction force; wherein,
[0019] The height to which the scale sleeve is lifted is the depth of the mechanical damage area to be measured.
[0020] Optionally, the fixing seat is provided with a plurality of magnetic bodies, and the magnetic bodies are used to adsorb and fix the fixing seat to the surface of the small-diameter tube.
[0021] Optionally, the fixing seat includes two fixing plates arranged opposite to each other, and a fixing beam is arranged between the two fixing plates.
[0022] Optionally, each of the fixing plates is provided with a plurality of magnetic bodies along its length direction.
[0023] Optionally, the fixing seat is in an arc shape to match the arc-shaped outer side wall of the small-diameter tube.
[0024] Optionally, the number of the first length measurement components is two, and the two first length measurement components are arranged opposite to each other;
[0025] Two ends of the second length measuring component are respectively fixedly connected to the second ends of the two first length measuring components.
[0026] The highly efficient measuring device for mechanical damage of small-diameter pipes of the disclosed embodiment can obtain the plane dimension information of the mechanical damage area to be measured by setting the first length measuring component and the second length measuring component, and can obtain the depth information of the mechanical damage area to be measured by the depth measuring component. The device combines the depth and plane measurements, thus solving the problem of cumbersome and inefficient measurement steps by personnel in the traditional measurement process. By magnetically fixing the fixing base to the mechanical damage area to be measured of the small-diameter pipe, not only the measurement accuracy is improved compared to the traditional handheld method, but also the inconvenience and safety hazard caused by the tool falling from a high altitude are avoided. The device is efficient, portable, easy to operate, reliable and safe; compared to the current visual assessment, it greatly improves the accuracy and objectivity of the assessment of the degree of mechanical damage, avoids the safety risks and economic losses caused by misjudgment, and has broad application prospects. BRIEF DESCRIPTION OF THE DRAWINGS
[0027] Figure 1 This is a schematic structural diagram of an efficient measuring device for mechanical damage of a small-diameter pipe according to an embodiment of the present disclosure;
[0028] Figure 2 It is a structural schematic diagram of a depth measurement component of another embodiment of the disclosed embodiments;
[0029] Figure 3 A schematic diagram of the working process of a depth component of another embodiment of the present disclosure;
[0030] Figure 4This is a schematic diagram of assembling a small-diameter tube with an efficient measuring device for mechanical damage of a small-diameter tube according to another embodiment of the present disclosure. DETAILED DESCRIPTION
[0031] In order to enable those skilled in the art to better understand the technical solutions of the embodiments of the present disclosure, the embodiments of the present disclosure are further described in detail below in conjunction with the accompanying drawings and specific implementation methods.
[0032] like Figure 1 and Figure 4 As shown, an embodiment of the present disclosure provides an efficient measuring device 100 for mechanical damage of a small-diameter pipe, including a fixing seat 110 , a first length measuring component 120 , a second length measuring component 130 and a depth measuring component 140 .
[0033] The fixing seat 110 is used for being fixed to the mechanical damage area A to be tested of the small-diameter tube 200 by magnetic attraction.
[0034] The first end of the first length measuring component 120 is movably disposed on the side wall of the fixing seat 110 and is disposed along the axial direction of the small-diameter tube 200 for measuring the length dimension of the mechanical damage area A to be measured in the axial direction of the small-diameter tube.
[0035] The first end of the first length measuring component 120 is movably disposed on the side wall of the fixing seat 110 , and the position of the first length measuring component 120 can be adjusted according to the position of the mechanical damage area A to be measured.
[0036] The second length measuring component 130 is fixedly connected to the second end of the first length measuring component 120 and is arranged along the radial direction of the small-diameter tube 200 to measure the length of the mechanical damage area A to be measured in the direction of the small-diameter tube diameter 200. In other words, the second length measuring component 130 and the first length measuring component 130 are arranged perpendicular to each other.
[0037] The depth measuring component 140 is slidably disposed in the second length measuring component 130 along the radial direction of the small-diameter tube 200 , and is used to measure the depth dimension of the mechanical damage area A to be measured.
[0038] Specifically, the fixing base 110 is magnetically fixed to the mechanical damage area A to be measured of the small-diameter tube 200, and the length dimension of the mechanical damage area A to be measured in the axial direction of the small-diameter tube is measured by the first length measuring component 120, and the length dimension of the mechanical damage area A to be measured in the direction of the diameter of the small-diameter tube 200 is measured by the second length measuring component 130, thereby obtaining the plane dimension information of the mechanical damage area to be measured. The depth dimension of the mechanical damage area A to be measured is measured by the depth measuring component 140, thereby obtaining the dimension information of the mechanical damage area A to be measured.
[0039] The highly efficient measuring device for mechanical damage of small-diameter pipes of the disclosed embodiment combines depth and plane measurements, solving the problem of cumbersome measurement steps and low efficiency of personnel in the traditional measurement process. By magnetically adsorbing the fixing base to the mechanical damage area to be measured on the small-diameter pipe, not only the measurement accuracy is improved compared to the traditional handheld method, but also the inconvenience and safety hazards caused by the tool falling from a high altitude are avoided. The device has the characteristics of simplifying the measurement steps, improving the measurement efficiency, being portable and easy to use; compared to the current visual assessment, it greatly improves the accuracy and objectivity of the assessment of the degree of mechanical damage, avoids the safety risks and economic losses caused by misjudgment, and has broad application prospects.
[0040] For example, Figure 1 As shown, the first length measuring assembly 120 includes a first scale rod 121 and two first positioning rods 122 slidably disposed on the first scale rod 121 along the length direction of the first scale rod 121 .
[0041] Specifically, the first scale rod 121 is provided with a scale, and by adjusting the two first positioning rods 122, the two first positioning rods 122 can be adjusted to the edge area of the mechanical damage area A to be measured, and then the scale on the first scale rod 121 is read to obtain the axial size of the mechanical damage area A to be measured in the small-diameter tube 200. That is, in this embodiment, the structural features of the first length measurement component 120 are similar to the structure of a vernier caliper.
[0042] For example, Figure 1 As shown, a slide groove 111 is provided on the side wall of the fixing seat 110 , and a pulley 121a is provided on the first end of the first scale rod 121 , and the pulley 121a is slidably provided in the slide groove 111 to more flexibly adjust the position of the first scale rod 121 .
[0043] For example, Figure 1 As shown, the second length measuring assembly 130 includes a second scale rod 131 and two second positioning rods 132 slidably disposed on the second scale rod 131 along the length direction of the second scale rod 131 .
[0044] Specifically, the second scale rod 131 is provided with scales, and by adjusting the two second positioning rods 132, the two second scale rods 131 can be adjusted to the edge area of the mechanical damage area A to be measured, and then the scales on the second scale rods 131 are read to obtain the radial size of the mechanical damage area A to be measured in the small-diameter tube 200. In this embodiment, the structural features of the second length measurement component 130 are similar to the structure of a vernier caliper.
[0045] For example, Figure 2 As shown, the depth measurement assembly 140 includes a scale sleeve 141 , a connecting rod 142 , an elastic member 143 , a pressure head 144 and a connecting rod head 145 .
[0046] The connecting rod 142 is inserted into the scale sleeve 141. The scale sleeve 141 is provided with scales.
[0047] The pressure head 144 is disposed at the first end of the connecting rod 142 and located outside the scale sleeve 141 . The connecting rod head 145 is disposed at the second end of the connecting rod 142 and located outside the scale sleeve 141 .
[0048] The elastic member 143 is sleeved on the outside of the connecting rod 142 and is located in the scale sleeve 141, close to the second end of the connecting rod 142. In this embodiment, the elastic member 143 can be a spring.
[0049] When the depth of the mechanical damage area A to be measured needs to be measured, the pressure head 144 is pressed, and the elastic member 143 is compressed under the pressure, and the scale sleeve 141 is lifted up under the reaction force. The height of the scale sleeve 141 being lifted up is the depth of the mechanical damage area A to be measured.
[0050] Specifically, Figure 3 As shown, the left side shows the structural features of the depth measurement assembly 140 when no pressure is applied to the pressure head 144, and the right side shows the structural features of the depth measurement assembly 140 when pressure is applied to the pressure head 144. When it is necessary to measure the depth of the mechanical damage area A to be measured, the pressure head 144 is pressed, and under the action of pressure, the elastic member 143 is compressed, and the scale sleeve 141 is lifted up under the reaction force. The height to which the scale sleeve 141 is lifted up is the depth of the mechanical damage area A to be measured. The structural features of the depth measurement assembly 140 are similar to those of a ballpoint pen. By obtaining the height difference h of the scale sleeve 141, the depth of the mechanical damage area A to be measured can be obtained.
[0051] like Figure 2 As shown, the size of the lower end of the scale sleeve 141 gradually decreases, and a limit member is provided on the scale sleeve 141 or the connecting rod 142 , and the limit member can limit the movement of the elastic member 143 .
[0052] It should be noted that a through hole is provided in the central area of the second scale rod 131 , and the scale sleeve 141 is slidably inserted into the through hole.
[0053] For example, Figure 1 As shown, the fixing seat 110 is provided with a plurality of magnetic bodies 112, and the magnetic bodies 112 are used to adsorb and fix the fixing seat to the surface of the small-diameter tube 200. The magnetic bodies 112 can be strong magnets.
[0054] In this embodiment, a magnetic body is provided on the fixing seat to firmly fix the measuring device on the mechanical damage area to be measured of the small-diameter pipe, which not only improves the measurement accuracy compared with the traditional handheld measurement, but also avoids the inconvenience and safety hazards caused by the tool falling from a high altitude.
[0055] For example, Figure 1 As shown, the fixing seat 110 includes two fixing plates 113 arranged opposite to each other, and a fixing beam 114 is arranged between the two fixing plates 113. This structure further reduces the weight of the measuring device, making the measuring device more portable.
[0056] For example, Figure 1 As shown, each fixing plate 113 is provided with a plurality of magnetic bodies 112 along its length direction. The number of the magnetic bodies 112 is not specifically limited in this embodiment and can be selected according to actual needs.
[0057] For example, Figure 1 and Figure 4 As shown, the shape of the fixing seat 110 is arc-shaped to match the arc-shaped outer side wall of the small-diameter tube 200. Specifically, the shapes of the two fixing plates 113 are both arc-shaped. The shape of the fixing seat 110 is arc-shaped and matches the arc-shaped outer side wall of the small-diameter tube 200, so that the measuring device can be more firmly fixed to the outer side wall of the small-diameter tube.
[0058] For example, Figure 1 As shown, there are two first length measuring components 120, and the two first length measuring components 120 are arranged opposite to each other. The two ends of the second length measuring component 130 are respectively fixedly connected to the second ends of the two first length measuring components 120. In this way, the second length measuring component 130 can perform measurements more stably, and the depth measuring component 140 interpolated to the second length measuring component 130 can perform measurements more stably, further improving the measurement accuracy.
[0059] The highly efficient measuring device for mechanical damage of small-diameter pipes of the disclosed embodiment solves the inconveniences encountered in the existing measurement of mechanical damage dimensions of small-diameter pipes, and has the characteristics of being able to be effectively fixed at the measurement position, simplifying the measurement steps, improving the measurement efficiency, being portable, and being easy to use, thereby accurately assessing the degree of mechanical damage and reducing safety risks and economic losses.
[0060] like Figures 1 to 4 As shown, the specific working process of the efficient measuring device for mechanical damage of small-diameter pipes according to the embodiment of the present disclosure is as follows:
[0061] The staff places the high-efficiency measuring device 100 for mechanical damage of small-diameter pipes at the position to be measured on the small-diameter pipes, and the magnetic body 112 embedded in the fixing seat 110 is adsorbed on the outer wall of the small-diameter pipe 200, thereby fixing the entire device at the position to be measured, and the staff can free their hands.
[0062] The staff measures the plane dimensions by sequentially translating the first positioning rod 122 and the second positioning rod 132 of the first length measuring assembly 120 and the second length measuring assembly 130, so that the first positioning rod 122 and the second positioning rod 132 are located at the edge of the mechanical damage area A to be measured. The staff can obtain the plane dimension information of the mechanical damage area A to be measured by reading the readings of the first scale rod 121 and the second scale rod 131.
[0063] The staff moves the first length measuring assembly 120 to move the second length measuring assembly 130 to the top of the deepest part of the pit in the mechanical damage area A to be measured. The staff presses the pressure head 144 on the depth measuring assembly 140. Under the action of the pressure, the elastic member 143 in the scale sleeve 141 is compressed, and under the action of the reaction force, the scale sleeve 141 is lifted up. The staff can obtain the depth of the pit in the mechanical damage area A to be measured by reading the height of the scale sleeve 141 being lifted up.
[0064] The staff releases the pressure head, removes the pressure, the spring returns, and the scale sleeve 141 returns to zero. The device only needs the inspector to place the device on the area to be tested, and it can be automatically adsorbed and fixed. During the test process, it only needs to move the first positioning rod 122 and the second positioning rod 132 and press the pressure head 144 to read the plane and depth information of the mechanical damage area A to be tested.
[0065] It is to be understood that the above embodiments are merely exemplary embodiments used to illustrate the principles of the embodiments of the present disclosure, but the embodiments of the present disclosure are not limited thereto. For those of ordinary skill in the art, various modifications and improvements can be made without departing from the spirit and essence of the embodiments of the present disclosure, and these modifications and improvements are also considered to be within the protection scope of the embodiments of the present disclosure.
Claims
1. An efficient measuring device for mechanical damage of small diameter pipes, characterized in that: It includes a fixing seat, a first length measuring component, a second length measuring component and a depth measuring component; The fixing seat is used for magnetic adsorption and fixing to the mechanical damage area to be measured of the small-diameter tube; The first end of the first length measuring component is movably disposed on the side wall of the fixing seat and is disposed along the axial direction of the small-diameter tube, and is used to measure the length dimension of the mechanical damage area to be measured in the axial direction of the small-diameter tube; The second length measuring component is fixedly connected to the second end of the first length measuring component and is arranged along the radial direction of the small-diameter tube, and is used to measure the length dimension of the mechanical damage area to be measured in the radial direction of the small-diameter tube; The depth measuring component is slidably disposed in the radial direction of the small-diameter tube and penetrates the second length measuring component, and is used to measure the depth dimension of the mechanical damage area to be measured.
2. The device according to claim 1, characterized in that The first length measuring assembly includes a first scale rod and two first positioning rods slidably disposed on the first scale rod along the length direction of the first scale rod.
3. The device according to claim 2, characterized in that A sliding groove is arranged on the side wall of the fixing seat, a pulley is arranged on the first end of the first scale rod, and the pulley is slidably arranged in the sliding groove.
4. The device according to any one of claims 1 to 3, characterized in that The second length measuring assembly includes a second scale rod and two second positioning rods slidably disposed on the second scale rod along the length direction of the second scale rod.
5. The device according to any one of claims 1 to 3, characterized in that: The depth measurement assembly comprises a graduated sleeve, a connecting rod, an elastic member, a pressure head and a connecting rod head; The connecting rod is inserted into the scale sleeve; The pressure head is arranged at the first end of the connecting rod and is located outside the scale sleeve, and the connecting rod head is arranged at the second end of the connecting rod and is located outside the scale sleeve; The elastic member is sleeved on the outer side of the second end of the connecting rod and is located in the scale sleeve; wherein, When the depth dimension of the mechanical damage area to be measured needs to be measured, the pressure head is pressed, and the elastic member is compressed under the action of the pressure, and the scale sleeve is lifted up under the action of the reaction force; wherein, The height to which the scale sleeve is lifted is the depth of the mechanical damage area to be measured.
6. The device according to any one of claims 1 to 3, characterized in that The fixing seat is provided with a plurality of magnetic bodies, and the magnetic bodies are used to adsorb and fix the fixing seat to the surface of the small-diameter tube.
7. The device according to claim 6, characterized in that The fixing seat comprises two fixing plates arranged opposite to each other, and a fixing beam is arranged between the two fixing plates.
8. The device according to claim 7, characterized in that Each of the fixing plates is provided with a plurality of magnetic bodies along its length direction.
9. The device according to any one of claims 1 to 3, characterized in that: The fixing seat is in an arc shape to match the arc-shaped outer side wall of the small-diameter tube.
10. The device according to any one of claims 1 to 3, characterized in that The number of the first length measurement components is two, and the two first length measurement components are arranged opposite to each other; Two ends of the second length measuring component are respectively fixedly connected to the second ends of the two first length measuring components.