CN113251885A - Gasification furnace cylindrical shell reference azimuth line correction method - Google Patents
Gasification furnace cylindrical shell reference azimuth line correction method Download PDFInfo
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- CN113251885A CN113251885A CN202110351045.3A CN202110351045A CN113251885A CN 113251885 A CN113251885 A CN 113251885A CN 202110351045 A CN202110351045 A CN 202110351045A CN 113251885 A CN113251885 A CN 113251885A
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- 238000000034 method Methods 0.000 title claims abstract description 36
- 238000002309 gasification Methods 0.000 title claims description 22
- 238000001514 detection method Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000009434 installation Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000009530 blood pressure measurement Methods 0.000 description 1
- 238000009529 body temperature measurement Methods 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B5/00—Measuring arrangements characterised by the use of mechanical techniques
Abstract
The application provides a gasifier drum shell benchmark azimuth line correction method, includes: s1, measuring the perimeter L of a first circular edge and a second circular edge on two sides of the cylindrical shell, confirming a mark point 3 and a mark point 4 on the first circular edge by taking L/2 as two end points of an arc with the arc length, and confirming a mark point 6 and a mark point 7 on the second circular edge by taking L/2 as two end points of the arc with the arc length; s2, hanging a plumb line 5 on the punctuation mark 3, and adjusting an angle adjusting bracket to enable the plumb line 5 to pass through the punctuation mark 4; s3, hanging a plumb line 11 on a punctuation mark 6, marking a cross point 8 of the plumb line 11 and a second circular edge, judging whether the punctuation mark 8 and the punctuation mark 7 coincide, if the punctuation mark 8 and the punctuation mark 7 coincide, indicating that the punctuation mark 6 and the punctuation mark 7 are accurate in direction, connecting the punctuation mark 3 and the punctuation mark 6 to form a 0-degree reference square line, and connecting the punctuation mark 4 and the punctuation mark 7 to form a 180-degree reference square line; if the punctuation 8 and the punctuation 7 are not coincident, the punctuation 6 and the punctuation 7 are inaccurate in orientation, and whether the cylindrical shell reference orientation line needs to be corrected or not is judged.
Description
Technical Field
The application relates to the technical field of pressure vessels, in particular to a method for correcting a reference azimuth line of a cylindrical shell of a gasification furnace.
Background
The gasification furnace is a high-end device in the pressure container industry and is a tap device in the coal chemical industry. The gasification furnace has the outstanding characteristics of high working pressure, high working temperature, complex and harsh reaction condition of internal media and the like, and the equipment manufacturing precision is much stricter than that of a common pressure container. The gasification furnace mainly comprises a cylindrical shell and an internal part, wherein a plurality of pipe orifices are required to be arranged on the cylindrical shell and used for being connected with various process pipelines in the internal part and elements such as temperature measurement, pressure measurement, liquid level detection and the like, the annular space between the internal part and the external part is small, the operation is inconvenient, and in order to ensure that the structural precision of the connection between the cylindrical shell and the internal part is high enough and the construction convenience is high, the position precision of the hole opening of the pipe orifice of the cylindrical shell is required to be extremely high. The position of a pipe orifice is generally determined by elevation and direction, the elevation can be efficiently and accurately measured by using length measuring tools such as a steel plate ruler, a tape measure and the like, and the direction is generally difficult to accurately measure, because a cylindrical shell of the gasification furnace is horizontally manufactured in a factory, a square line cannot be always accurately parallel to a central line of the cylindrical shell of the gasification furnace, the square line cannot be always parallel to the central line of equipment (when the equipment is installed in place, a plumb bob is kept on the central line of the equipment) after the equipment is vertically installed in place on site, the deviation of the relative square line of the cylindrical shell and internal parts is large, the installation of a connecting piece between the shell and the internal parts is difficult, and even the installation of individual parts is difficult.
Therefore, on the premise of the horizontal manufacturing process of the gasifier shell, a method capable of accurately judging and correcting the reference azimuth line of the cylindrical shell is researched, the azimuth lines of other pipe orifices are defined by the reference line corrected by the method, the actual three-dimensional space position of each pipe orifice is ensured to be accurately matched with the theoretical requirement of drawing, and the precision and the feasibility of the on-site connection of the gasifier shell and the internal parts are ensured.
Therefore, how to correct and measure the reference azimuth line of the cylindrical shell is a problem to be solved urgently by those skilled in the art.
Disclosure of Invention
In view of this, the present application provides a method for correcting a reference azimuth line of a cylindrical shell of a gasification furnace, so as to correct and measure the reference azimuth line of the cylindrical shell.
In order to achieve the above purpose, the present application provides the following technical solutions:
a method for correcting a reference azimuth line of a cylindrical shell of a gasification furnace, which is used for measuring and drawing the reference azimuth line on the cylindrical shell horizontally placed on an angle adjusting frame, comprises the following steps: s1, measuring the perimeter L of a first circular edge and a second circular edge on two sides of the cylindrical shell, determining a punctuation 3 and a punctuation 4 on the first circular edge by taking L/2 as two end points of an arc with the arc length, and determining a punctuation with a higher height as a punctuation 6 and a punctuation with a lower height as a punctuation 7 on the second circular edge by taking L/2 as the two end points of the arc with the arc length; s2, hanging a plumb line 5 on the punctuation mark 3, and adjusting an angle adjusting bracket to enable the plumb line 5 to pass through the punctuation mark 4; s3, hanging a plumb line 11 on a punctuation mark 6, marking a cross point 8 of the plumb line 11 and a second circular edge, judging whether the punctuation mark 8 and the punctuation mark 7 coincide, if the punctuation mark 8 and the punctuation mark 7 coincide, indicating that the punctuation mark 6 and the punctuation mark 7 are accurate in direction, connecting the punctuation mark 3 and the punctuation mark 6 to form a 0-degree reference square line, and connecting the punctuation mark 4 and the punctuation mark 7 to form a 180-degree reference square line; if the punctuations 8 and 7 do not coincide, the positions of the punctuations 6 and 7 are not accurate.
Optionally, if the punctuation 8 and the punctuation 7 do not coincide, the method further comprises the following steps: s4, measuring the arc length M between the index point 7 and the index point 8, which is less than or equal to a semicircle; and S5, keeping the angle adjusting frame still, not adjusting the position of the cylinder shell, enabling the position of the marking point 7 to face the direction of the marking point 8, moving the arc length of M/2 on the arc to be measured with the length of M, enabling the marking point 6 to face the direction deviating from the marking point 8, moving the arc length of M/2 on the second circle edge, connecting the marking point 3 with the moved marking point 6 to form a 0-degree reference square line, and connecting the marking point 4 with the moved marking point 7 to form a 180-degree reference square line.
Optionally, the arc lengths on the first and second rounded edges are measured using a tape measure and a cord.
Optionally, the angle adjustment frame is a roller frame.
Optionally, if the punctuation 8 and the punctuation 7 do not coincide, the method further comprises the following steps: s4, measuring the arc length M between the index point 7 and the index point 8, which is more than or equal to a semicircle; s5, keeping the angle adjusting frame still, not adjusting the position of the cylinder shell, deviating the position of the marking point 7 from the direction of the marking point 8, moving the arc length of M/2 on the measured arc with the length of M, and marking point 6 towards the direction of the marking point 8, moving the arc length of M/2 on the second circle edge, at the moment, connecting the marking point 3 with the moved marking point 7 to form a 0-degree reference square line, and connecting the marking point 4 with the moved marking point 6 to form a 180-degree reference square line.
The application provides a gasifier drum shell benchmark azimuth line correction method for measuring and drawing a benchmark azimuth line on a drum shell horizontally placed on an angle adjusting frame, which comprises the following steps: s1, measuring the perimeter L of a first circular edge and a second circular edge on two sides of the cylindrical shell, confirming a mark point 3 and a mark point 4 on the first circular edge by taking L/2 as two end points of an arc with the arc length, and confirming a mark point 6 and a mark point 7 on the second circular edge by taking L/2 as two end points of the arc with the arc length; in this way, the punctuation 3 and the punctuation 4 bisect the first circular edge, and the punctuation 6 and the punctuation 7 bisect the second circular edge; s2, hanging a plumb line 5 on the punctuation mark 3, and adjusting an angle adjusting bracket to enable the plumb line 5 to pass through the punctuation mark 4; in this way, the punctuation 3 is equivalently adjusted to the highest point in the vertical direction, the punctuation 4 is over against the punctuation 3 and is at the lowest point in the vertical direction; s3, hanging a plumb line 11 on a punctuation mark 6, marking a cross point 8 of the plumb line 11 and a second circular edge, judging whether the punctuation mark 8 and the punctuation mark 7 coincide, if the punctuation mark 8 and the punctuation mark 7 coincide, indicating that the punctuation mark 6 and the punctuation mark 7 are accurate in direction, connecting the punctuation mark 3 and the punctuation mark 6 to form a 0-degree reference square line, and connecting the punctuation mark 4 and the punctuation mark 7 to form a 180-degree reference square line; because the drum shell is a space component, the primary punctuation mark drawing line of an engineer drawing a reference line is easy to have larger error, the requirements of two standard reference lines are that punctuation marks 3, punctuation marks 4, punctuation marks 6 and punctuation marks 7 are coplanar, and the plane is the bisection vertical plane of the drum shell, so, punctuation marks 8 and punctuation marks 7 can prove that the punctuation marks 3 and punctuation marks 4, the punctuation marks 6 and the punctuation marks 7 are qualified if the punctuation marks are overlapped, but more situations are that the punctuation marks 8 and the punctuation marks 7 are not overlapped, if the punctuation marks 8 and the punctuation marks 7 are not overlapped, the directions of the punctuation marks 6 and the punctuation marks 7 are not accurate. The point selection needs to be corrected, the detection of the primary drawing of the drawing engineer is realized by the method, and whether the reference azimuth line of the cylindrical shell needs to be corrected or not can be judged.
Drawings
The novel features believed characteristic of the application are set forth with particularity in the appended claims. A better understanding of the features and advantages of the present application will be obtained by reference to the following detailed description that sets forth illustrative embodiments, in which the principles of the application are utilized, and the accompanying drawings. The drawings are only for purposes of illustrating embodiments and are not to be construed as limiting the application. Also, in the drawings, wherein like reference numerals refer to like elements throughout:
fig. 1 is a front view of a cylindrical shell structure in a gasification furnace cylindrical shell reference azimuth line correction method provided by the present application;
FIG. 2 is a structural side view of a cylindrical shell according to the method for correcting the reference azimuth line of the cylindrical shell of the gasification furnace provided by the present application;
fig. 3 is an explanatory diagram illustrating a method for correcting a reference azimuth line of a cylindrical shell of a gasification furnace provided by the present application;
in the upper diagram: 1 is 0 degree benchmark square line, 2 is 180 degrees benchmark square line, 3 is punctuation 3, 4 is punctuation 4, 5 is plumb line 5, 6 is punctuation 6, 7 is punctuation 7, 8 is punctuation 8, 9 is punctuation 9, 10 is punctuation 10, 11 is plumb line 11, 12 is vertical center line.
Detailed Description
The application provides a method for correcting a reference azimuth line of a cylindrical shell of a gasification furnace, which realizes correction and measurement and drawing of the reference azimuth line of the cylindrical shell.
The technical solutions in the embodiments of the present application will be described clearly and completely with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments of the present application without making any creative effort, shall fall within the protection scope of the present application.
Fig. 1 is a front view of a cylindrical shell structure in a gasification furnace cylindrical shell reference azimuth line correction method provided by the present application; FIG. 2 is a structural side view of a cylindrical shell according to the method for correcting the reference azimuth line of the cylindrical shell of the gasification furnace provided by the present application; fig. 3 is an explanatory diagram illustrating a method for correcting the reference azimuth line of the cylindrical shell of the gasification furnace according to the present application.
The application provides a gasifier drum shell benchmark azimuth line correction method for measuring and drawing a benchmark azimuth line on a drum shell horizontally placed on an angle adjusting frame, which comprises the following steps: s1, measuring the perimeter L of a first circular edge and a second circular edge on two sides of a cylinder shell, confirming a punctuation point 3 and a punctuation point 4 on the first circular edge by taking L/2 as two end points of an arc with the arc length, confirming a punctuation point with higher height as a punctuation point 6 and confirming a punctuation point with lower height as a punctuation point 7 on the second circular edge by taking L/2 as the two end points of the arc with the arc length, and thus ensuring that the plumb line is hung on the punctuation point 6 to be effective; in this way, the punctuation 3 and the punctuation 4 bisect the first circular edge, and the punctuation 6 and the punctuation 7 bisect the second circular edge; s2, hanging a plumb line 5 on the punctuation mark 3, and adjusting an angle adjusting bracket to enable the plumb line 5 to pass through the punctuation mark 4; in this way, the punctuation 3 is equivalently adjusted to the highest point in the vertical direction, the punctuation 4 is over against the punctuation 3 and is at the lowest point in the vertical direction; s3, hanging a plumb line 11 on a punctuation mark 6, marking a cross point 8 of the plumb line 11 and a second circular edge, judging whether the punctuation mark 8 and the punctuation mark 7 coincide, if the punctuation mark 8 and the punctuation mark 7 coincide, indicating that the punctuation mark 6 and the punctuation mark 7 are accurate in direction, connecting the punctuation mark 3 and the punctuation mark 6 to form a 0-degree reference square line, and connecting the punctuation mark 4 and the punctuation mark 7 to form a 180-degree reference square line; because the drum shell is a space component, the primary punctuation mark drawing line of an engineer drawing a reference line is easy to have larger error, the requirements of two standard reference lines are that punctuation marks 3, punctuation marks 4, punctuation marks 6 and punctuation marks 7 are coplanar, and the plane is the bisection vertical plane of the drum shell, so, punctuation marks 8 and punctuation marks 7 can prove that the punctuation marks 3 and punctuation marks 4, the punctuation marks 6 and the punctuation marks 7 are qualified if the punctuation marks are overlapped, but more situations are that the punctuation marks 8 and the punctuation marks 7 are not overlapped, if the punctuation marks 8 and the punctuation marks 7 are not overlapped, the directions of the punctuation marks 6 and the punctuation marks 7 are not accurate. The point selection needs to be corrected, the detection of the primary drawing of the drawing engineer is realized by the method, and whether the reference azimuth line of the cylindrical shell needs to be corrected or not can be judged.
In a specific embodiment of the present application, if the punctuation mark 8 and the punctuation mark 7 are not overlapped, it indicates that the punctuation mark 6 is not located at the highest point of the second circular edge in the vertical direction, the method may further include the following steps for correcting the positions of the punctuation mark 6 and the punctuation mark 7: s4, measuring the arc length M between the index point 7 and the index point 8, which is less than or equal to a semicircle; and S5, keeping the angle adjusting frame still, not adjusting the position of the cylinder shell, enabling the position of the marking point 7 to face the direction of the marking point 8, moving the arc length of M/2 on the measured arc with the length of M to the position of the marking point 10 in the figure 3, enabling the marking point 6 to face the direction departing from the marking point 8, and moving the arc length of M/2 on the second circle to the position of the marking point 9 in the figure 3. The intersection point punctuation 9 of the vertical central line 12 and the second circular edge is the highest point on the second circular edge, the intersection point punctuation 10 of the vertical central line 12 and the second circular edge is the lowest point on the second circular edge, at the moment, the punctuation 6 and the punctuation 7 after the movement are updated, the punctuation 3, the punctuation 4, the punctuation 6 and the punctuation 7 are coplanar, and the plane vertically bisects the cylindrical shell, at the moment, the punctuation 3 and the punctuation 6 after the movement are connected to form a 0-degree reference square line, and the punctuation 4 and the punctuation 7 after the movement are connected to form a 180-degree reference square line. The reference azimuth line of the cylindrical shell is measured and drawn.
In a specific embodiment of the present application, the arc lengths on the first and second rounded edges are measured using a tape measure and a cord.
In one embodiment of the present application, the angle adjustment frame is a roller frame.
In a specific embodiment of the present application, if the punctuation mark 8 and the punctuation mark 7 are not coincident, the method further comprises the following steps: s4, measuring the arc length M between the index point 7 and the index point 8, which is more than or equal to a semicircle; s5, keeping the angle adjusting frame still, not adjusting the position of the cylinder shell, deviating the position of the marking point 7 from the direction of the marking point 8, moving the arc length of M/2 on the measured arc with the length of M, which is equivalent to moving to the marking point 9, marking the marking point 6 towards the direction of the marking point 8, moving the arc length of M/2 on the second circle edge, which is equivalent to moving to the marking point 10, at the moment, connecting the marking point 3 with the moved marking point 7 to form a 0-degree reference square line, and connecting the marking point 4 with the moved marking point 6 to form a 180-degree reference square line.
It should be understood that the various steps recited in the method embodiments of the present disclosure may be performed in a different order, and/or performed in parallel. Moreover, method embodiments may include additional steps and/or omit performing the illustrated steps. The scope of the present application is not limited in this respect.
In the description provided herein, numerous specific details are set forth. However, it is understood that embodiments of the disclosure may be practiced without these specific details. In some embodiments, well-known methods, structures and techniques have not been shown in detail in order not to obscure an understanding of this description.
While exemplary embodiments of the present application have been shown and described herein, it will be obvious to those skilled in the art that such embodiments are provided by way of example only. Numerous modifications, changes, and substitutions will now occur to those skilled in the art without departing from the application. It should be understood that various alternatives to the embodiments of the application described herein may be employed in practicing the application. It is intended that the following claims define the scope of the application and that methods and structures within the scope of these claims and their equivalents be covered thereby.
Claims (5)
1. A method for correcting a reference azimuth line of a cylindrical shell of a gasification furnace is used for measuring and drawing the reference azimuth line on the cylindrical shell horizontally placed on an angle adjusting frame, and is characterized by comprising the following steps:
s1, measuring the perimeter L of a first circular edge and a second circular edge on two sides of the cylindrical shell, determining a standard point 3(3) and a standard point 4(4) on the first circular edge by taking L/2 as the two end points of an arc length, and determining a standard point 6(6) which is the higher standard point and a standard point 7(7) which is the lower standard point on the second circular edge by taking L/2 as the two end points of the arc length;
s2, hanging a plumb line 5(5) on the punctuation point 3(3), adjusting the angle adjustment rack so that the plumb line 5(5) passes through the punctuation point 4 (4);
s3, hanging a plumb line 11(11) on the punctuation mark 6(6), marking an intersection 8(8) of the plumb line 11(11) and the second circle edge, judging whether the punctuation mark 8(8) and the punctuation mark 7(7) coincide with each other, if the two coincide with each other, indicating that the punctuation mark 6(6) and the punctuation mark 7(7) have accurate orientations, connecting the punctuation mark 3(3) and the punctuation mark 6(6) to form a 0-degree reference square line, connecting the punctuation mark 4(4) and the punctuation mark 7(7) to form a 180-degree reference square line; if the punctuations 8(8) and 7(7) are not coincident, the punctuations 6(6) and 7(7) are inaccurate in orientation.
2. The method for correcting the reference azimuth line of the gasification furnace cylindrical shell according to claim 1, wherein if the mark point 8(8) and the mark point 7(7) do not coincide with each other, the method further comprises the steps of:
s4, measuring the arc length M between the punctuations 7(7) and 8(8) which is less than or equal to a semicircle;
s5, keeping the angle adjusting frame still, not adjusting the position of the cylindrical shell, moving the position of the mark point 7 toward the direction of the mark point 8(8), moving the arc length of M/2 on the measured arc of M length, moving the mark point 6(6) toward the direction departing from the mark point 8(8), moving the arc length of M/2 on the second circle, at this time, connecting the mark point 3(3) and the moved mark point 6(6) to form a 0 degree reference square line, connecting the mark point 4(4) and the moved mark point 7(7) to form a 180 degree reference square line.
3. The method for correcting the reference azimuth line of the gasification furnace cylindrical shell according to claim 2, wherein the arc lengths on the first and second circular edges are measured using a tape measure and a cord.
4. The method for correcting the reference azimuth line of the gasification furnace cylindrical shell according to claim 3, wherein the angle adjustment frame is a roller frame.
5. The method for correcting the reference azimuth line of the gasification furnace cylindrical shell according to claim 1, wherein if the mark point 8(8) and the mark point 7(7) do not coincide with each other, the method further comprises the steps of:
s4, measuring the arc length M between the punctuations 7(7) and 8(8) which is more than or equal to a semicircle;
s5, keeping the angle adjusting frame still, not adjusting the position of the cylindrical shell, moving the position of the mark point 7 away from the direction of the mark point 8(8), moving the arc length of M/2 on the measured arc of M length, moving the mark point 6(6) toward the direction of the mark point 8(8), moving the arc length of M/2 on the second circle, at this time, connecting the mark point 3(3) and the moved mark point 7(7), forming a 0 degree reference square line, connecting the mark point 4(4) and the moved mark point 6(6), forming a 180 degree reference square line.
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| CN202110351045.3A CN113251885B (en) | 2021-03-31 | 2021-03-31 | Gasification furnace cylindrical shell reference azimuth line correction method |
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| CN202110351045.3A CN113251885B (en) | 2021-03-31 | 2021-03-31 | Gasification furnace cylindrical shell reference azimuth line correction method |
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