Device and method for measuring the horizontality of the internal support ring of a tower pressure vessel

Abstract

This application discloses a device and method for measuring the levelness of the internal support ring of a tower pressure vessel. The device includes a laser receiver, comprising: a base secured to the internal support ring; a laser receiving plate including a laser capture display located at its center, which receives laser light and displays a number indicating levelness deviation; and a laser transmitter, comprising: a base secured to the internal support ring; a laser emission source for emitting laser light toward the laser receiver; a first zeroing knob and a second zeroing knob for adjusting the emitted laser light to return the number displayed on the laser capture display of the laser receiver to zero; and a reference fulcrum positioned on the base. The device and its use method can quickly measure the levelness deviation of the internal support ring of a tower pressure vessel with high measurement accuracy and are suitable for measuring the levelness deviation of internal support rings of tower pressure vessels of various sizes.

Description

Technical Field

[0001] The present application generally relates to the technical field of manufacturing tower pressure vessels, and more particularly to a device and method for measuring the horizontality of an internal support ring of a tower pressure vessel. Background Art

[0002] Internal components are the most critical parts of tower pressure vessels; they are the true essence of the equipment. Different internal component structures and requirements enable tower pressure vessels to function in diverse applications, such as reaction, evaporation, storage, and heat exchange. The internal support rings (or plates) play a crucial role within these components. Their levelness directly impacts the height of the overflow weir, the side clearances at the bottom of the downcomer, the height of the liquid layer on the tray, and the uniformity of the gas phase distribution. Poor levelness of the internal support rings (support plates) can directly affect the liquid holding capacity and flow performance of the tower tray, reducing its efficiency and resulting in substandard products. Most tower vessels are manufactured in factories using horizontal assembly and welding, making it difficult to inspect and ensure that they meet the requirements for on-site vertical tower internal levelness testing, much less guaranteeing the future efficiency of the entire equipment. To measure the levelness of the internal support rings (support plates) in a horizontal position, a theoretical reference plane must be found. This theoretical reference plane can then be used to determine the actual levelness of the internal support rings (support plates), allowing effective deviation correction to meet on-site vertical tower internal levelness testing requirements and ensure the actual efficiency of the tower vessel equipment. The method and device for measuring the levelness of the internal support rings (support plates) of a horizontal assembly of tower pressure vessels proposed in the present invention can fully resolve this technical problem. Summary of the Invention

[0003] In view of the above technical problems, the present disclosure proposes a device for measuring the levelness of the inner part support ring of a tower pressure vessel, comprising: a laser receiver, the laser receiver including a base, which is used to be fixed to the inner part support ring; a laser receiving plate, including a laser capture display located at the center thereof, the laser capture display receiving laser and displaying a number representing the levelness deviation; and a laser transmitter, the laser transmitter including: a base, which is used to be fixed to the inner part support ring; a laser emission source, which is used to emit laser to the laser receiver; a first zeroing knob and a second zeroing knob, which are used to adjust the emitted laser so that the number displayed on the laser capture display of the laser receiver is zeroed; a reference fulcrum, the reference fulcrum is positioned on the base.

[0004] In a preferred embodiment, the base is an iron-magnetic base or a vacuum chuck base.

[0005] In a preferred embodiment, the reference fulcrum and the laser emission source are respectively located on two sides of the base.

[0006] The present disclosure also proposes a method for using the above-mentioned device, including: S1, finding the internal part support ring to be measured on the tower pressure vessel; S2, fixing the laser emitter to the internal part support ring in the tower pressure vessel through its base, and then rotating the tower pressure vessel by rotating a roller to rotate the internal part support ring to a desired position; S3, selecting a first position point, a second position point, and a third position point to determine a reference horizontal position of the laser emitter; S4, setting a plurality of measuring points, and measuring horizontal deviation values ​​K1 and K2 on the inner and outer sides of each of the plurality of measuring points respectively; S5, calculating the absolute value of the difference between the horizontal deviation value of the corresponding measuring point and the horizontal deviation value K0 of the reference fulcrum of the laser emitter based on the measured horizontal deviation values ​​K1 and K2 to obtain a specific deviation value of the corresponding measuring point, and S7, calculating the maximum value MAX, the minimum value MIN, and the maximum deviation amount of the specific deviation value of the plane where the internal part support ring is located based on the specific deviation values ​​obtained for all measuring points.

[0007] In a preferred embodiment, in S4, the number of the plurality of measuring points is determined according to the diameter of the inner component support ring.

[0008] In a preferred embodiment, S3 also includes: S31, placing the laser receiver at a first position point, adjusting the laser transmitter so that the emitted laser is captured by the laser receiver, and the number displayed on the laser capture display is reset to zero; S32, placing the laser receiver at a second position point, adjusting the laser transmitter so that the emitted laser is captured by the laser receiver, and the number displayed on the laser capture display is reset to zero; S33, placing the laser receiver at a third position point, adjusting the laser transmitter so that the emitted laser is captured by the laser receiver, and the number displayed on the laser capture display is reset to zero.

[0009] In a preferred embodiment, the first position point is close to the reference fulcrum of the laser emitter, the second position point is the intersection of the center point of the first zeroing knob and the extension line of the reference fulcrum with the outer side of the inner part support ring, and the third position point is the intersection of the center point of the second zeroing knob and the extension line of the reference fulcrum with the outer side of the inner part support ring.

[0010] In another preferred embodiment, in S4 , the plurality of measurement points are evenly distributed in a plurality of layers of the inner part support ring.

[0011] In a preferred embodiment, in S6, the mean of the specific deviation values ​​of all measurement points is determined based on the specific deviation values ​​of all measurement points obtained: μ=∑x i / n, where x i represents the specific deviation value of the i-th measuring point among the multiple measuring points, and n represents the number of layers of the inner part support ring.

[0012] In a preferred embodiment, the method further includes S7: drawing actual and theoretical contour diagrams of the levelness of the inner component support ring, and marking the numerical value of the levelness.

[0013] Compared with the prior art, the beneficial effects of the present disclosure are: it can quickly measure the horizontality deviation of the internal support ring of the tower pressure vessel with high measurement accuracy, and is suitable for measuring the internal support rings of tower pressure vessels of various sizes. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The novel features of the present application are particularly set forth in the appended claims. A better understanding of the features and advantages of the present application will be obtained by referring to the following detailed description and accompanying drawings that illustrate illustrative embodiments in which the principles of the present application are utilized. The accompanying drawings are for illustration purposes only and should not be considered as limiting the present application. In addition, the same reference numerals are used throughout the drawings to represent the same elements. In the drawings:

[0015] Figure 1 A side view showing a laser transmitter of an apparatus for measuring the levelness of an internals support ring of a tower pressure vessel according to an exemplary embodiment of the present disclosure;

[0016] Figure 2 A top view showing a laser transmitter of an apparatus for measuring the levelness of an internals support ring of a tower pressure vessel according to an exemplary embodiment of the present disclosure;

[0017] Figure 3 A schematic diagram showing a laser receiver of an apparatus for measuring the levelness of an internals support ring of a tower pressure vessel according to an exemplary embodiment of the present disclosure;

[0018] Figure 4 A schematic diagram showing a tower pressure vessel and an internals support ring therein according to an exemplary embodiment of the present disclosure is shown;

[0019] Figure 5 A top view of a tower pressure vessel and an internals support ring therein according to an exemplary embodiment of the present disclosure is shown;

[0020] Figure 6A flow chart showing a method for using a device for measuring the levelness of an internals support ring of a tower pressure vessel according to an exemplary embodiment of the present disclosure;

[0021] Figure 7 A schematic diagram showing adjustment of a positioning reference level by a three-point positioning method according to an exemplary embodiment of the present disclosure is shown; and

[0022] Figure 8 FIG. 4 is a schematic diagram showing the position distribution of measurement points i on an inner part support ring according to an exemplary embodiment of the present disclosure.

[0023] Explanation of the reference numerals: 1 laser transmitter, 2 laser receiver, 3 internal support ring, 4 tower pressure vessel, 11 base of laser transmitter, 12A first zeroing knob and 12B second zeroing knob, 13 laser emission source, 14 reference fulcrum, 21 base of laser receiver, 22 laser receiving board, 23 laser capture display, 41 shell, and 42 head. DETAILED DESCRIPTION

[0024] The exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. Although exemplary embodiments of the present disclosure are shown in the accompanying drawings, it should be understood that the present disclosure can be implemented in various forms and should not be limited by the embodiments set forth herein. On the contrary, these embodiments are provided to enable a more thorough understanding of the present disclosure and to enable the scope of the present disclosure to be fully conveyed to those skilled in the art. Nothing in the following detailed description is intended to indicate that any particular component, feature or step is essential for this application. Those skilled in the art will understand that various features or steps can replace or combine with each other without departing from the scope of the present disclosure.

[0025] The present disclosure proposes a device for measuring the levelness of an internal support ring 3 of a tower pressure vessel 4 , comprising: a laser transmitter 1 and a laser receiver 2 . Figure 1 A side view of a laser transmitter 1 of an apparatus for measuring the levelness of an internals support ring 3 of a tower pressure vessel 4 according to an exemplary embodiment of the present disclosure is shown. Figure 2A top view of a laser transmitter 1 of an apparatus for measuring the levelness of the internals support ring 3 of a tower pressure vessel 4 according to an exemplary embodiment of the present disclosure is shown. The laser transmitter 1 may include a base 11, a first return-to-zero knob 12A, a second return-to-zero knob 12B, a laser source 13, and a reference fulcrum 14. The base 11 may be secured to the internals support ring 3. In some embodiments, the base may be a magnetic base, a vacuum chuck base, or any other base deemed appropriate by those skilled in the art. For example, the magnetic base may be made of any material other than stainless steel, and the vacuum chuck base may be made of any material. The laser source 13 may be used to emit laser light toward the laser receiver 2. The first return-to-zero knob 12A and the second return-to-zero knob 12B may be used to adjust the emitted laser light so that the number displayed on the laser capture display 23 of the laser receiver 2 is zeroed. The reference fulcrum 14 may be located on the base 11. In some embodiments, the reference fulcrum 14 may be a point on a rod positioned on the base 11 and perpendicular to the surface of the base 11. In some embodiments, the reference fulcrum 14 and the laser emission source 13 may be located on both sides of the base 11 respectively. Figure 3 A schematic diagram of a laser receiver 2 of an apparatus for measuring the levelness of an internals support ring 3 of a tower pressure vessel 4 according to an exemplary embodiment of the present disclosure is shown. The laser receiver 2 includes a base 21 and a laser receiving plate 22. The base 21 can be secured to the internals support ring 3. The laser receiving plate 22 can include a laser capture display 23 located at its center, which can receive laser light and display a number indicating levelness deviation. In some embodiments, the base 21 can be a magnetic base, a vacuum cup base, or any other base deemed appropriate by those skilled in the art.

[0026] Figure 4 A schematic diagram of a tower pressure vessel 4 and an internals support ring 3 therein according to an exemplary embodiment of the present disclosure is shown. In some embodiments, the tower pressure vessel 4 may include a shell 41, a head 42, and multiple layers of internals support rings 3. Figure 5 FIG2 shows a top view of a tower pressure vessel 4 and an internal support ring 3 therein according to an exemplary embodiment of the present disclosure. A plurality of measurement points (i1-3) can be evenly distributed on a cross section of the internal support ring 3. Each of the plurality of measurement points can have an inner side and an outer side, for example, Figure 5 The illustrated measurement points are the inner side of the measuring point i1, the outer side of the measuring point i2, and the inner and outer sides of the measuring point i3. A plurality of measuring points (eg, i1, i2, i3) may be located on both sides of the inner support ring 3.

[0027] Figure 6A flow chart of a method for using an apparatus for measuring the horizontality of an internal support ring 3 of a tower pressure vessel 4 according to an exemplary embodiment of the present disclosure is shown. The present disclosure also proposes a method for using the above-mentioned apparatus, which may include the following S1-S6. S1, the internal support ring 3 to be measured may be found on the tower pressure vessel 4. Usually, when the tower pressure vessel 4 is manufactured in a manufacturing plant, it is manufactured horizontally due to reasons such as the workshop conditions of the factory. Therefore, it is first necessary to find the internal support ring 3 to be measured on the tower pressure vessel 4. S2, the laser emitter 1 may be fixed to the internal support ring 3 in the tower pressure vessel 4 through its base 11, and then the tower pressure vessel 4 may be rotated by rotating a roller so that the internal support ring 3 is rotated to the desired position. S3, a first position point, a second position point, and a third position point may be selected to determine the reference horizontal position of the laser emitter 1. Figure 7 A schematic diagram illustrating adjusting the positioning reference horizontal plane using a three-point positioning method according to an exemplary embodiment of the present disclosure is shown. In some embodiments, the first position point (position 1 as shown in the figure) can be close to the reference fulcrum 14 (fulcrum 0 as shown in the figure) of the laser transmitter 1, the second position point (position 2 as shown in the figure) can be the intersection of the center point of the first zeroing knob 12A (knob A) and the extension line of the reference fulcrum (fulcrum 0 as shown in the figure), and the outer side of the inner support ring 3, and the third position point (position 3 as shown in the figure) can be the intersection of the center point of the second zeroing knob 12B (knob B) and the extension line of the reference fulcrum (fulcrum 0 as shown in the figure), and the outer side of the inner support ring 3. In addition, S3 may also include: S31, placing the laser receiver at a first position (position 1 as shown in the figure), adjusting the laser transmitter 1 so that the emitted laser light is captured by the laser receiver 2, and returning the number displayed on the laser capture display 23 to zero; S32, placing the laser receiver at a second position (position 2 as shown in the figure), adjusting the laser transmitter 1 so that the emitted laser light is captured by the laser receiver 2, and returning the number displayed on the laser capture display 23 to zero; S33, placing the laser receiver at a third position (position 3 as shown in the figure), adjusting the laser transmitter 1 so that the emitted laser light is captured by the laser receiver 2, and returning the number displayed on the laser capture display 23 to zero. The method described herein may also include S4. S4 may include setting multiple measurement points, and measuring the horizontal deviation values ​​K1 and K2 on the inside and outside of each of the multiple measurement points i, respectively. Figure 8A schematic diagram of the position distribution of the measurement points i on the internal support ring 3 according to an exemplary embodiment of the present disclosure is shown. In some embodiments, the number of the multiple measurement points can be determined based on the diameter of the internal support ring. In some embodiments, the multiple measurement points can be evenly distributed in multiple layers of the internal support ring. For example, the number of measurement points on the tower ring of the entire internal support ring 3 can be first determined. The number of measurement points can be determined based on the diameter of the tower pressure vessel, where all measurement points are symmetrically distributed with one measurement point as the starting point. The density of the multiple measurement points can be determined with reference to the following table:

[0028] Diameter of tower pressure vessel ≤1000mm 1000mm>and ≤2000mm 2000mm>and ≤4000mm >4000mm Number of measurement points 4 8-10 10-12 14-16

[0029] Then, the plurality of measurement points can be numbered and marked in a clockwise direction. The method described herein may further include S5. In S5, the absolute value of the difference between the horizontal deflection value (K1 and K2) of the corresponding measurement point and the horizontal deflection value K0 of the reference support point of the laser transmitter can be calculated based on the measured horizontal deflection value (K1 and K2) to obtain the specific deviation value of the corresponding measurement point, i.e., x i = the absolute value of K1-K0, and the absolute value of K2-K0. The method described herein may further include S6. In S6, based on the specific deviation values ​​obtained for all measurement points, the maximum value MAX, the minimum value MIN, and the maximum deviation of the specific deviation value of the plane where the inner support ring is located may be calculated. Specifically, the difference between the maximum value and the minimum value may be the maximum deviation of the inner support ring (support plate) relative to the theoretical horizontal plane. In a preferred embodiment, in S6, based on the specific deviation values ​​obtained for all measurement points, the mean value of the specific deviation values ​​of all measurement points is determined: μ=∑x i / n, where x i represents the specific deviation value of the i-th measuring point among the multiple measuring points, and n represents the number of layers of the internal support ring. The cumulative error mean of the horizontality of all internal components of the internal support ring (support plate) of the entire tower pressure vessel when assembled in a horizontal manufacturing manner can be determined. That is, by measuring and recording i measuring points on the tower tray of the tower internals, accumulating measurement records layer by layer or at intervals of several layers on the trays of n layers of tower internals, calculating the maximum and minimum absolute values ​​of their points, surfaces, and layers, and obtaining the mean of the normal distribution average, the horizontality deviation of the internal components of the tower pressure vessel can be quickly measured with high measurement accuracy, and is suitable for measuring internal components of tower pressure vessels of various sizes. The method described herein may also include S7. S7 can draw actual and theoretical contour diagrams of the horizontality of the internal support ring based on the horizontal deviation values ​​measured at the above n-layer i measuring points, and annotate the numerical values ​​of the horizontality, thereby making the measurement results more intuitive.

[0030] Compared to existing technologies, the present invention offers the advantages of rapid and highly accurate measurement of the level deviation of internal components in tower pressure vessels, making it suitable for measuring internal components of various sizes. For tower pressure vessels of varying sizes, the levelness of internal component support rings (support plates) can be measured in advance during fabrication and installation, enabling early detection, pre-diagnosis, and rectification, thereby avoiding quality loss and problem feedback. Programming can be used to automatically capture laser light, perform detection, and record data, simplifying manual measurement and improving measurement efficiency.

[0031] It should be understood that the systems and / or methods in the various embodiments provided in the present invention may be combined, modified, and / or altered to form new technical solutions. In the absence of creative work, these technical solutions should also be included in the scope of protection claimed by the present invention.

[0032] In the embodiments provided herein, a large number of specific examples are provided. It should be understood that these examples are merely for the purpose of illustrating the embodiments of the present invention in detail and are not intended to limit the present invention. The embodiments of the present invention can be practiced without these specific examples. In some embodiments, methods, structures, and / or techniques known to those skilled in the art are not shown in detail so as not to obscure the understanding of the present invention.

[0033] Although preferred embodiments of the present invention have been shown and described herein, it will be apparent to those skilled in the art that these embodiments are provided by way of example only. A variety of variations, modifications, and substitutions will now occur to those skilled in the art without departing from the present invention. It should be understood that the various alternatives to the embodiments of the present invention described herein are optionally used to implement the present invention. It is intended that the scope of the present invention be defined by the claims, and that methods and structures within the scope of these claims and their equivalents be encompassed thereby.

Claims

1. A device for measuring the horizontality of an internal support ring of a tower pressure vessel, comprising: A laser receiver, comprising: a base for fixing to the inner member support ring; a laser receiving plate including a laser capturing display at the center thereof, the laser capturing display receiving laser light and displaying a number indicating a deviation from the horizontality; and A laser transmitter, comprising: a base, which is used to be fixed to the inner member support ring; a laser emitting source, configured to emit laser light toward the laser receiver; A first return-to-zero knob and a second return-to-zero knob, which are used to adjust the emitted laser so that the number displayed on the laser capture display of the laser receiver returns to zero; a reference fulcrum, the reference fulcrum being positioned on the base; The reference support point and the laser emission source are respectively located on both sides of the base. Methods of using the device include: S1, finding the internal support ring to be measured on the tower pressure vessel; S2, fixing the laser emitter to the internal support ring in the tower pressure vessel through its base, and then rotating the tower pressure vessel by rotating a roller to rotate the internal support ring to a desired position; S3, selecting a first position point, a second position point, and a third position point to determine a reference horizontal position of the laser transmitter; S4, setting a plurality of measuring points, and measuring the horizontal deflection value at the inner side and the outer side of each measuring point among the plurality of measuring points; S5, calculating the absolute value of the difference between the horizontal deflection value of the corresponding measuring point and the horizontal deflection value of the reference support point of the laser transmitter based on the measured horizontal deflection value, so as to obtain a specific deviation value of the corresponding measuring point; and S6, calculating the maximum value, minimum value and maximum deviation of the specific deviation values ​​of the plane where the inner part support ring is located based on the specific deviation values ​​obtained for all the measuring points.

2. The device according to claim 1, wherein the base is an iron-magnetic base or a vacuum chuck base. 3 . The device according to claim 1 , wherein in S4 , the number of the plurality of measuring points is determined according to the diameter of the inner part support ring.

4. The apparatus according to claim 1, S3 further comprising: S31, placing the laser receiver at the first position, adjusting the laser transmitter so that the emitted laser is captured by the laser receiver, and returning the number displayed on the laser capture display to zero; S32, placing the laser receiver at the second position, adjusting the laser transmitter so that the emitted laser light is captured by the laser receiver, and returning the number displayed on the laser capture display to zero; S33, placing the laser receiver at the third position, adjusting the laser emitter so that the emitted laser is captured by the laser receiver, and returning the number displayed on the laser capture display to zero.

5. The device according to claim 4, wherein the first position point is close to the reference fulcrum of the laser emitter, the second position point is the intersection of the center point of the first zeroing knob and the extension line of the reference fulcrum with the outer side of the inner part support ring, and the third position point is the intersection of the center point of the second zeroing knob and the extension line of the reference fulcrum with the outer side of the inner part support ring. 6 . The device according to claim 1 , wherein in S4 , the plurality of measurement points are evenly distributed in a plurality of layers of the inner part support ring.

7. The apparatus according to claim 6, wherein in step S6, the mean value of the specific deviation values ​​of all the measuring points is determined based on the specific deviation values ​​of all the measuring points obtained: μ = ∑x i / n, where x i represents the specific deviation value of the i-th measuring point among the multiple measuring points, and n represents the number of layers of the inner part support ring.

8. The device according to claim 1, wherein the method for using the device further comprises S7: drawing actual and theoretical contour diagrams of the levelness of the inner component support ring, and marking the numerical value of the levelness.

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