CN111826172A - Coke oven gas buried pipe installation method - Google Patents
Coke oven gas buried pipe installation method Download PDFInfo
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- CN111826172A CN111826172A CN202010601064.2A CN202010601064A CN111826172A CN 111826172 A CN111826172 A CN 111826172A CN 202010601064 A CN202010601064 A CN 202010601064A CN 111826172 A CN111826172 A CN 111826172A
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- buried pipe
- coke oven
- gas buried
- fixing bracket
- installation method
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10B—DESTRUCTIVE DISTILLATION OF CARBONACEOUS MATERIALS FOR PRODUCTION OF GAS, COKE, TAR, OR SIMILAR MATERIALS
- C10B29/00—Other details of coke ovens
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- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Organic Chemistry (AREA)
- Coke Industry (AREA)
Abstract
The invention discloses a coke oven gas buried pipe installation method, which comprises the following steps: s1: determining the positions of a transverse positioning axis and a longitudinal positioning axis on a base top plate; s2: determining the position of a fixing bracket for fixing the coal gas buried pipe according to the positions of the transverse positioning axis and the longitudinal positioning axis; s3: placing the coal gas buried pipe according to the position of the fixed support; s4: calculating the deformation expansion amount of each coal gas buried pipe during installation according to a formula delta I which is delta t multiplied by L multiplied by alpha I; s5: determining the sum of the maximum deformation expansion amount of the adjacent gas buried pipes according to the deformation expansion amount measured in the S4; s6: and determining the width of the axial expansion joint and the width of the longitudinal expansion joint of the adjacent coal gas buried pipes according to the sum of the maximum deformation expansion amount in the step S5, and enabling the width of the axial expansion joint and the width of the longitudinal expansion joint of the adjacent coal gas buried pipes to be larger than the sum of the maximum deformation expansion amount. The invention can accurately position the position of the coal gas buried pipe, ensure the safety and stability of installation construction, save installation time and installation cost and have good installation effect.
Description
Technical Field
The invention belongs to the technical field of coke oven gas buried pipe installation, and particularly relates to a coke oven gas buried pipe installation method.
Background
The coke oven is an industrial oven with a complex structure and long-term continuous production. In the construction engineering of the coke oven, a large number of gas downward-spraying branch pipes and downward-hole pipes (hereinafter referred to as gas buried pipes) need to be buried in a foundation top plate of the coke oven, the mounting requirements of the gas buried pipes need to ensure accurate positions, but the construction of the axis measuring and placing fixing frame becomes an extremely important link because the number of the positioning axes is large, the arrangement is complex and a solid structure is not formed, and the stability of the fixing frame directly influences the accuracy of the axis positioning of the gas buried pipes, but the method in the prior art is difficult to stabilize the fixing frame, so the expected construction requirements cannot be met.
Disclosure of Invention
The invention provides a method for installing a coke oven gas buried pipe, which solves the technical problems of difficult positioning of the coke oven gas buried pipe and inaccurate position of an axis fixing frame in the prior art.
In order to solve the technical problems, the invention adopts the technical scheme that:
a coke oven gas buried pipe installation method comprises the following steps:
s1: determining the positions of a transverse positioning axis and a longitudinal positioning axis of a gas buried pipe installation area on a coke oven base top plate;
s2: determining the position of a fixing bracket for fixing the gas buried pipe according to the positions of the transverse positioning axis and the longitudinal positioning axis;
s3: placing the coal gas buried pipe according to the position of the fixed support;
s4: calculating the deformation expansion amount of each fixed bracket during installation according to a formula delta I-delta t multiplied by L multiplied by alpha I;
s5: determining the sum of the maximum deformation expansion amount of the adjacent fixing brackets according to the deformation expansion amount measured in the S4;
s6: and determining the width of an axial expansion joint and the width of a longitudinal expansion joint which are installed adjacent to the fixed support according to the sum of the maximum deformation expansion amounts in the step S5, wherein the width of the axial expansion joint and the width of the longitudinal expansion joint which are adjacent to the fixed support are respectively larger than the sum of the maximum deformation expansion amounts.
Further, Δ t in S4 is a measurement value of the circadian temperature difference at the time of installation.
Further, L in S4 is a measurement value of the transverse or longitudinal length of the fixing bracket.
Further, the transverse length and the longitudinal length of the fixing support are the same and are 6000 mm.
Further, α I in S4 is a linear expansion coefficient of the fixing stent.
Further, the fixed support is made of a steel pipe, and the linear expansion coefficient of the fixed support is the linear expansion coefficient under the condition of 20-100 ℃. Further, the linear expansion coefficient of the fixing bracket is 11.4 multiplied by 10-6mm/mm·℃。
Further, Δ I in S4 is the expansion amount of the fixing stent.
Further, the fixed bolster is the cross, the fixed bolster level place and with the basic roof sets up side by side.
Furthermore, the coal gas buried pipe is perpendicular to the fixed support and is positioned at the intersection of the fixed support.
Compared with the prior art, the installation method provided by the invention has the advantages of simple operation steps, accurate positioning of the coke oven gas buried pipe, guarantee of the safety and stability of installation construction, saving of installation time and installation cost, good installation effect, strong practicability and easiness in popularization.
Drawings
FIG. 1 is a top view of a gas burying position distribution of one embodiment of the present invention;
fig. 2 is a perspective view of the gas buried pipe position distribution according to an embodiment of the present invention.
In the figure:
10. coal gas buried pipe 20, transverse positioning axis 30 and longitudinal positioning axis
40. Fixed support 41, transverse frame 42 and longitudinal frame
50. Pipe side control line
Detailed Description
The invention is described in detail below with reference to the figures and specific embodiments.
The embodiment provides a method for installing a coke oven gas buried pipe, as shown in fig. 1 and 2, the method comprises the following steps:
s1: the installation area of the gas buried pipe 10 is defined on the coke oven foundation top plate, and the positions of the transverse positioning axis 20 and the longitudinal positioning axis 30 placed by the fixing bracket 40 are set in the installation area.
Specifically, in the installation process of the gas buried pipe 10, the fixing support 40 is a cross and comprises a cross frame 41 and a longitudinal frame 42, the fixing support 40 is horizontally placed and arranged side by side with the basic top plate, and the fixing support 10 is made of a steel pipe. The coal gas buried pipe 10 is arranged perpendicular to the fixing support 40 and is arranged at the intersection of the fixing support 40.
On the basic top plate, according to the guiding measurement of the original measurement control net, the installation area of the coal gas buried pipe 10 is defined on the basic top plate of the coke oven. And determining the positions of a transverse positioning axis 20 at the transverse position and a longitudinal positioning axis 30 at the longitudinal position on the top plate of the coke oven foundation according to a construction design drawing.
S2: and determining the placement position of the fixing bracket 40 for fixing the gas buried pipe 10 according to the positions of the transverse locating axis 20 and the longitudinal locating axis 30. Meanwhile, using an infrared ray measuring instrument, which is a measuring tool commonly used in the art, the fixed positions of the respective cross frames 41 and the longitudinal frames 42 of the plurality of fixing brackets 40 are observed and adjusted a plurality of times until the fixing brackets 40 are placed at the installation positions in parallel to the transverse positioning axis 20 and the longitudinal positioning axis 30, which is omitted.
S3: the coal gas buried pipe 10 is placed according to the position of the fixed bracket 40.
S4: the amount of deformation and expansion of each fixing bracket 40 at the time of installation is calculated according to the formula Δ I ═ Δ t × L × α I.
Specifically, in the formula:
delta I is the amount of expansion of the fixed bracket 40 in mm;
Δ t is the measurement of day-night temperature difference in units;
l is the measurement value of the total length of the pipe laying fixing bracket 40 in mm;
alpha I is the linear expansion coefficient of the fixed support 40 at 20-100 ℃, and the unit is mm/mm per DEG C.
In this embodiment:
the measurement value delta t of the day-night temperature difference during installation is 35 ℃;
the transverse length and the longitudinal length of a fixing support 40 for building the coal gas buried pipe 10 are the same, and the length L is a 6000mm steel pipe;
the linear expansion coefficient alpha I of the steel pipe fixing bracket 40 is 11.4 multiplied by 10 under the condition of 20-100 DEG C-6mm/mm·℃；
Therefore, the expansion amount of a single steel pipe is calculated by substituting the formula as follows:
ΔI＝Δt×L×αI＝35×6000×11.4×10-6＝2.4mm
s5: the sum of the maximum deformation expansion amounts of the adjacent fixing brackets 40, that is, the sum of the maximum deformation expansion amounts of the adjacent fixing brackets 40 is 4.8mm, is determined based on the deformation expansion amounts measured in step S4.
S6: and determining the width of the axial expansion joint and the width of the longitudinal expansion joint of the adjacent fixed supports 40 according to the sum of the maximum deformation expansion amounts in the step S5, wherein the width of the axial expansion joint and the width of the longitudinal expansion joint of the adjacent fixed supports 40 are the same, and the width of the axial expansion joint and the width of the longitudinal expansion joint of the adjacent fixed supports 40 are respectively greater than the sum of the maximum deformation expansion amounts by 4.8 mm.
Specifically, the transverse and longitudinal deformation expansion amounts of the whole buried pipe fixing support 40 are evenly distributed according to the installation axial expansion joint width and the longitudinal expansion joint width of the adjacent fixing supports 40, so as to ensure that the average expansion amount of the fixing support 40 of the coal gas buried pipe 10 is within the range of the design allowable error value. Therefore, in this embodiment, the width of the axial expansion joint and the width of the longitudinal expansion joint between adjacent fixing brackets 40 are both 5-8 mm.
And then, respectively checking the positions of the transverse positioning axis 20 and the longitudinal positioning axis 30 by using a total station, and correspondingly coinciding the transverse positioning axis 20 with the central line of the coke oven, and correspondingly coinciding the longitudinal positioning axis 30 with the central line of the carbonization chamber, so as to ensure that the relative positions of the transverse positioning lines and the longitudinal positioning lines 4 measured and placed on the basis of the transverse positioning axis 20 and the longitudinal positioning axis 30 are correct.
Checking the burying position of the gas buried pipe 10 by using the pipe edge control line 50 to control the correct position of each gas buried pipe 10 in the longitudinal direction and the transverse direction in the fixed support 40, namely checking and measuring the distance from the pipe edge control line 50 to the gas buried pipe 10 one by using a large ruler with the pipe edge control line 50 as a reference and recording until the position adjustment and determination of each gas buried pipe 10 are completed.
In order to minimize system errors and accidental measurement errors caused by human factors such as different observation angles or different reading standards, it is preferable that a fixed person performs measurement.
The installation method provided by the invention has the advantages of simple operation steps, accurate positioning of the coke oven gas buried pipe, guarantee of the safety and stability of installation construction, saving of installation time and installation cost, good installation effect, strong practicability and easiness in popularization.
The embodiments of the present invention have been described in detail, and the description is only for the preferred embodiments of the present invention and should not be construed as limiting the scope of the present invention. All equivalent changes and modifications made within the scope of the present invention shall fall within the scope of the present invention.
Claims (10)
1. The coke oven gas buried pipe installation method is characterized by comprising the following steps:
s1: determining the positions of a transverse positioning axis and a longitudinal positioning axis of a gas buried pipe installation area on a coke oven base top plate;
s2: determining the position of a fixing bracket for fixing the gas buried pipe according to the positions of the transverse positioning axis and the longitudinal positioning axis;
s3: placing the coal gas buried pipe according to the position of the fixed support;
s4: calculating the deformation expansion amount of each fixed bracket during installation according to a formula delta I-delta t multiplied by L multiplied by alpha I;
s5: determining the sum of the maximum deformation expansion amount of the adjacent fixing brackets according to the deformation expansion amount measured in the S4;
s6: and determining the width of an axial expansion joint and the width of a longitudinal expansion joint which are installed adjacent to the fixed support according to the sum of the maximum deformation expansion amounts in the step S5, wherein the width of the axial expansion joint and the width of the longitudinal expansion joint which are adjacent to the fixed support are respectively larger than the sum of the maximum deformation expansion amounts.
2. The coke oven gas pipe laying installation method of claim 1, wherein Δ t in S4 is a measurement value of day-night temperature difference at the time of installation.
3. The coke oven gas pipe laying installation method of claim 1, wherein L in S4 is a measurement of the transverse or longitudinal length of the fixing bracket.
4. The coke oven gas buried pipe installation method of claim 3, wherein the transverse length and the longitudinal length of the fixing bracket are the same and are 6000 mm.
5. The coke oven gas pipe laying installation method of claim 1, wherein ai in S4 is a linear expansion coefficient of the fixing bracket.
6. The coke oven gas buried pipe installation method of claim 5, wherein the fixing bracket is made of a steel pipe, and the linear expansion coefficient of the fixing bracket is 20-100 ℃.
7. The coke oven gas buried pipe installation method of claim 6, wherein the linear expansion coefficient of the fixing bracket is 11.4 x 10-6mm/mm·℃。
8. The coke oven gas pipe laying installation method of claim 1, wherein Δ I in S4 is an expansion amount of the fixing bracket.
9. The coke oven gas pipe laying installation method of any one of claims 1 to 8, wherein the fixing bracket is a cross, and the fixing bracket is horizontally placed and arranged side by side with the base top plate.
10. The coke oven gas buried pipe installation method of claim 9, wherein the gas buried pipe is arranged perpendicular to the fixing bracket and is located at the intersection of the fixing bracket.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010601064.2A CN111826172A (en) | 2020-06-29 | 2020-06-29 | Coke oven gas buried pipe installation method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010601064.2A CN111826172A (en) | 2020-06-29 | 2020-06-29 | Coke oven gas buried pipe installation method |
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| CN111826172A true CN111826172A (en) | 2020-10-27 |
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| CN202010601064.2A Pending CN111826172A (en) | 2020-06-29 | 2020-06-29 | Coke oven gas buried pipe installation method |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104048629A (en) * | 2014-06-24 | 2014-09-17 | 天津二十冶建设有限公司 | Method for measuring and controlling gas buried pipe positions on coke oven foundation top plate |
| KR20160143375A (en) * | 2015-06-05 | 2016-12-14 | 주식회사 포스코 | Tube cleaning apparatus, Raw material processing apparatus and Raw material processing method |
| CN106753447A (en) * | 2015-11-25 | 2017-05-31 | 中冶天工集团有限公司 | Coke oven top plate buried pipe assembled fixing frame and assembling method thereof |
| CA2899123C (en) * | 2013-01-28 | 2017-08-15 | PHG Energy, LLC | Method and device for gasifying feedstock |
-
2020
- 2020-06-29 CN CN202010601064.2A patent/CN111826172A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA2899123C (en) * | 2013-01-28 | 2017-08-15 | PHG Energy, LLC | Method and device for gasifying feedstock |
| CN104048629A (en) * | 2014-06-24 | 2014-09-17 | 天津二十冶建设有限公司 | Method for measuring and controlling gas buried pipe positions on coke oven foundation top plate |
| KR20160143375A (en) * | 2015-06-05 | 2016-12-14 | 주식회사 포스코 | Tube cleaning apparatus, Raw material processing apparatus and Raw material processing method |
| CN106753447A (en) * | 2015-11-25 | 2017-05-31 | 中冶天工集团有限公司 | Coke oven top plate buried pipe assembled fixing frame and assembling method thereof |
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Application publication date: 20201027 |