CN203585704U - Drum-shaped compensator for coke oven gas main pipeline - Google Patents
Drum-shaped compensator for coke oven gas main pipeline Download PDFInfo
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- CN203585704U CN203585704U CN201320705446.5U CN201320705446U CN203585704U CN 203585704 U CN203585704 U CN 203585704U CN 201320705446 U CN201320705446 U CN 201320705446U CN 203585704 U CN203585704 U CN 203585704U
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- arc plate
- arc
- compensator
- main pipeline
- shaped
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Abstract
The utility model discloses a drum-shaped compensator for a coke oven gas main pipeline. The drum-shaped compensator comprises a No. 1 arc-shaped plate 1, a No. 2 arc-shaped plate 2, a No. 3 arc-shaped plate 3 and an annular vertical plate 4, and is characterized in that the No. 1 arc-shaped plate 1, the No. 2 arc-shaped plate 2 and the No. 3 arc-shaped plate 3 are of the same shapes, and are 120 degrees in radians; the middle part of each arc-shaped plate is provided with spaced ripples 8 in a direction parallel to a cambered side of the arc-shaped plate; after straight line sides of adjacent arc-shaped plates are combined and welded, a cylinder is formed; spaced annular ripples are formed at the middle segment of the side wall of each cylinder; the two end faces of a cylindrical shell are welded by using an annular vertical plate 4 respectively; the inner diameter of each annular vertical plate is matched with the outer diameter of a coke oven gas main pipeline 9; the side wall of the cylindrical shell is provided with a bleeder screw cap 5 and a preserved bleeder screw cap 6 respectively; the side wall of which cylindrical shell which is symmetrical to the bleeder screw cap 5 and the preserved bleeder screw cap 6 is provided with a preserved nitrogen pipe screw cap 7. By adopting the drum-shaped compensator, the problem of severe accidents caused by leakage of coal gas from a leakage point on the compensator for the coke oven gas main pipeline can be solved, and the production safety is ensured.
Description
Technical field
The utility model belongs to compensator on-bne repair field.
Background technique
In China, in iron and steel metallurgy enterprise, coke-stove gas supervisor net mostly is looped network type design, there is transmission & distribution mode stable, sole user's maintenance affects the advantages such as less to main ring network, but as one of main main artery in dynamic medium, it is long that ubiquity the operation period, the situation of the maintenance of having no chance thoroughly to stop the supple of gas or steam, cause gas pipe line and affiliated facility to occur in succession corrosion phenomenon, become a great problem of puzzlement iron and steel enterprise at present.
CO in gas composition
2, O
2after water-soluble, can cause corrosion to equipment, in actual production is safeguarded, blast furnace gas and coal gas of converter to the corrosion of equipment a little less than, and the mixed gas of coke-stove gas and coke-stove gas large percentage is larger to the harm of equipment.Coke-stove gas is the by-product gas in process of coking, raw coke oven gas through saturated, cooling, purify after, wherein the impurity such as a large amount of tar is removed, but still have a small amount of saturation water, ammonia, sulphide, cyanide, ammonium salt, phenol etc. in coal gas, though its content is few, less than 2% is but the key factor that causes the equipment corrosions such as coke oven gas pipe, compensator.
The safe and stable operation of gas pipe line is the of paramount importance link of gas industry, and coal gas related facility generation leak source, if thoroughly do not processed, exists following some problem:
1, coke-stove gas main pipeline drum type compensator carries out after plugging operations, though temporarily avoided coal gas to leak, this province of compensator is affected by thermal expansion and contraction, and has the possibility that gas leakage occurs again.
2, material that plugging operations is used is provisional processing scheme, if do not carry out the utility model, very easily occurs leak stopping phenomenon repeatedly, thoroughly processing device security hidden danger.
3, traditional leak stopping and repair welding mode be prone to gas poisoning, the potential safety hazard such as catch fire.
4, gas pipe line lay how parallel with road, while there is leak source in overhead gas pipe around carbonomonoxide concentration can raise gradually, personal security is around threatened;
If 5 coal gas leak sources are not processed in time, washing away and the aggravation of facility material corrosion of gas, the whole gaspipe network of stopping transport of finally having to, not only each coal gas user cooperation that need stop production, cause serious economic loss, and can interrupt domestic gas user's normal air feed, huge to the influence on system operation of whole town gas system.
Gas pipe line compensator occurs after leakage point, the leak stopping of traditional approach is generally temporary measure, coke-stove gas main pipeline drum type compensator carries out after leak stopping leak source, for avoiding that gas leakage or leakage quantity increasing occur again because expanding with heat and contract with cold, use in time new FlexbleJoint that former drum type compensator is coated.The serious compensator leaking is no longer leaked, and thermal expansion amount that can effective compensation gas pipe line, guarantee gaspipe network safe and stable operation.
Summary of the invention
The purpose of this utility model is to provide a kind of coke oven gas pipe compensator and occurs after leakage point, avoids coal gas to leak causing the coke-stove gas main pipeline drum type compensator of serious accident.
The utility model is implemented by the following technical programs:
Coke-stove gas main pipeline drum type compensator, comprising: 1
# arc plate 1,2
# arc plate 2,3
# arc plate 3, annular riser 4, it is characterized in that: 1
# arc plate 1,2
# arc plate 2,3
#3 three arc plate shapes of arc plate are identical, radian is 120 degree, every arc plate intermediate portion is having the parallel direction in the limit of radian to establish spaced ripple 8 with it, after the straight line gang welding of adjacent arcs plate, form a cylinder, cylinder side wall intermediate section forms the annular corrugated of interval, two end faces of cylinder type shell weld with an annular riser 4 respectively, the annular internal diameter of riser 4 and the external diameter of coke-stove gas main pipeline 9 match, an exhaust stack silk 5 and reserved exhaust stack silk 6 is set respectively on cylinder type side wall of outer shell, reserved logical nitrogen tube silk 7 is set simultaneously.
The utility model has the advantages that:
1, meet the piping compensation requirement that coke-stove gas main pipeline expands with heat and contract with cold.
2, extend the drum type compensator operation period, eliminate gas pipe line operation hidden danger.
3, the process safety of the new FlexbleJoint operation of outsourcing is reliable, has avoided band coal gas, band pressure operation.
4, reduce worker's labor intensity, avoid occurring leak stopping repeatedly.
5, the easy processing and fabricating of outsourcing material, the cost of overhaul is lower.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model;
1-1 in figure
#arc plate, 2-2
#arc plate, 3-3
#arc plate, 4-annular riser, 5-exhaust stack silk head, the reserved exhaust stack silk head of 6-, the reserved logical nitrogen tube silk head of 7-, 8-ripple, 9-coal gas main pipeline;
Embodiment
Example 1
Coke-stove gas main pipeline drum type compensator, comprising: 1
# arc plate 1,2
# arc plate 2,3
# arc plate 3, annular riser 4, it is characterized in that: 1
# arc plate 1,2
# arc plate 2,3
#3 three arc plate shapes of arc plate are identical, radian is 120 degree, every arc plate intermediate portion is having the parallel direction in the limit of radian to establish spaced ripple 8 with it, after the straight line gang welding of adjacent arcs plate, form a cylinder, cylinder side wall intermediate section forms the annular corrugated of interval, two end faces of cylinder type shell weld with an annular riser 4 respectively, the annular internal diameter of riser 4 and the external diameter of coke-stove gas main pipeline 9 match, an exhaust stack silk 5 and reserved exhaust stack silk 6 is set respectively on cylinder type side wall of outer shell, reserved logical nitrogen tube silk 7 is set simultaneously.
Manufacture method is as follows:
Confirmation scene possesses after the condition of getting angry, and the utility model specifically divides following step to carry out:
The installation of 1 both sides annular riser
According to former compensator wave height, make in advance annular riser.For making site operation convenient, the annular riser 4 of every side of old compensator is divided into 6 sectors (because compensator wave height is 550mm, it is 650mm that riser is made into high, thick is 10mm), scene is assembled into annular riser 4 in old compensator both sides, the annular riser having welded is first spot welded to old compensator both sides, prevents its distortion, affect the installation of arc plate below.
Install before annular riser, on the riser of bottom, install blowdown head in advance, to guarantee after normal operation in the future, periodical blowdown.
The installation of 2 arc plates
After vertical plates on both sides installs, three arc plate block-by-blocks be installed.
Secondly 3# arc plate 3 is installed.When 3# arc plate 3 is installed as far as possible with 2# arc plate 2 to good mouthful, then spot welding bonds on riser 4.So far, the utility model is assembled complete substantially, forms a new confined space.Now will by the 3# arc plate 3 of installation in advance reserved reserved exhaust stack silk 6 open, simultaneously by 1 # arc plate 1 and 2# arc plate 2 in advance reserved reserved logical nitrogen tube silk 7 continue to pass into nitrogen, by the coal gas of micro-leakage and nitrogen mixture by 3# arc plate 3 in advance reserved reserved exhaust stack silk 6 connect sebific duct and drive out of, guarantee the inner micro positive pressure that keeps of airtight new compensator.
3 weldings
Assemble after the utility model, in the situation that the utility model (new compensator inside) confined space keeps nitrogen and coal gas mixed gas micro positive pressure, at short notice all weld bonds are carried out to welding as early as possible.
First, carry out sub-arc-welding welding to the white steel corrugated portion of new compensator.Because of 1 # arc plate 1 and 2# arc plate 2, and between 2 # arc plate 2 and 3# arc plate 3 when mounted just simultaneously to having got well mouthful, for 3# arc plate 3 and the 1# arc plate 1 part redundance of helping to shoulder heavy thing, cut, counterpart is extremely just in time suitable.If 3 # arc plate 3 and 1# arc plate 1 are helped to shoulder heavy thing, part has gap, and application shifts to an earlier date ready white steel plate by corrugated portion completion, then with steel plate by the gap completion of steel plate part.
Secondly, all weld seams of the riser to new compensator and arc plate carry out full weld, guarantee welding quality, and weld seam, without leakage, reaches maintenance requirement conscientiously.
Leak test, the examination of 4 new compensators
New FlexbleJoint will pass into nitrogen and carry out leak test, and leak source is carried out to conscientious check processing, then comprehensively checks and accepts.Finally, it is anticorrosion that new coated FlexbleJoint also will carry out outer brush oil, extends its working life.
Claims (1)
1.
?coke-stove gas main pipeline drum type compensator, comprising: 1
#arc plate (1), 2
#arc plate (2), 3
#arc plate (3), annular riser (4), it is characterized in that: 1
#arc plate (1), 2
#arc plate (2), 3
#(3) three arc plate shapes of arc plate are identical, radian is 120 degree, every arc plate intermediate portion is having the parallel direction in the limit of radian to establish spaced ripple (8) with it, after the straight line gang welding of adjacent arcs plate, form a cylinder, cylinder side wall intermediate section forms the annular corrugated of interval, two end faces of cylinder type shell are used respectively an annular riser (4) welding, the internal diameter of annular riser (4) and the external diameter of coke-stove gas main pipeline (9) match, an exhaust stack silk head (5) and reserved exhaust stack silk head (6) are set respectively on cylinder type side wall of outer shell, reserved logical nitrogen tube silk head (7) is set simultaneously.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320705446.5U CN203585704U (en) | 2013-11-11 | 2013-11-11 | Drum-shaped compensator for coke oven gas main pipeline |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320705446.5U CN203585704U (en) | 2013-11-11 | 2013-11-11 | Drum-shaped compensator for coke oven gas main pipeline |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203585704U true CN203585704U (en) | 2014-05-07 |
Family
ID=50583618
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320705446.5U Withdrawn - After Issue CN203585704U (en) | 2013-11-11 | 2013-11-11 | Drum-shaped compensator for coke oven gas main pipeline |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203585704U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103557400A (en) * | 2013-11-11 | 2014-02-05 | 内蒙古包钢钢联股份有限公司 | Drum type compensator for main pipe of coke oven gas and manufacturing method thereof |
| CN115338550A (en) * | 2022-08-19 | 2022-11-15 | 山东莱钢永锋钢铁有限公司 | Method for on-line welding repair of blast furnace charging bucket with coal gas |
-
2013
- 2013-11-11 CN CN201320705446.5U patent/CN203585704U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103557400A (en) * | 2013-11-11 | 2014-02-05 | 内蒙古包钢钢联股份有限公司 | Drum type compensator for main pipe of coke oven gas and manufacturing method thereof |
| CN115338550A (en) * | 2022-08-19 | 2022-11-15 | 山东莱钢永锋钢铁有限公司 | Method for on-line welding repair of blast furnace charging bucket with coal gas |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20140507 Effective date of abandoning: 20220316 |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20140507 Effective date of abandoning: 20220316 |
|
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |