CN109268696A - The online trapping device of coal gas drainer downpipe horn mouth and craft leakage mending method - Google Patents
The online trapping device of coal gas drainer downpipe horn mouth and craft leakage mending method Download PDFInfo
- Publication number
- CN109268696A CN109268696A CN201811273741.1A CN201811273741A CN109268696A CN 109268696 A CN109268696 A CN 109268696A CN 201811273741 A CN201811273741 A CN 201811273741A CN 109268696 A CN109268696 A CN 109268696A
- Authority
- CN
- China
- Prior art keywords
- sleeve
- horn mouth
- downpipe
- coal gas
- trapping device
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17D—PIPE-LINE SYSTEMS; PIPE-LINES
- F17D5/00—Protection or supervision of installations
- F17D5/02—Preventing, monitoring, or locating loss
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17D—PIPE-LINE SYSTEMS; PIPE-LINES
- F17D3/00—Arrangements for supervising or controlling working operations
- F17D3/14—Arrangements for supervising or controlling working operations for eliminating water
- F17D3/145—Arrangements for supervising or controlling working operations for eliminating water in gas pipelines
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17D—PIPE-LINE SYSTEMS; PIPE-LINES
- F17D5/00—Protection or supervision of installations
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Pipe Accessories (AREA)
- Examining Or Testing Airtightness (AREA)
Abstract
The invention discloses a kind of online trapping devices of coal gas drainer downpipe horn mouth, including first sleeve, second sleeve and ventilation pipe, the first sleeve is in the bottom-up toroidal gradually expanded, the second sleeve is connected to the lower end of first sleeve, the ventilation pipe is connected on second sleeve side wall, and is connected to the inside of second sleeve.The trapping device is passed through protective gas during leak repairing, through ventilation pipe, prevents coal gas detonation, realizes the online leak repairing that production is not stopped transport；Leak repairing is carried out by the way of being sleeved on outside original horn mouth, the new horn mouth of formation has Double-protection, and original horn mouth provides the buffer function that coal gas and condensed water wash away for the new horn mouth of outer layer, increases new bell-mouthed service life.A kind of craft leakage mending method using above-mentioned apparatus is also disclosed simultaneously, and this method saves the repair time without carrying out forcible entry operation to original horn mouth.It realizes in tape water, the safe leak repairing operation with coal gas.
Description
Technical field
The invention belongs to technical field of metallurgical equipment, and in particular to a kind of coal gas drainer downpipe horn mouth trapping device
And craft leakage mending method.
Background technique
The moisture content in gas generated in Production Process for Steel Enterprise is larger, needs that coal gas drainer is arranged in pipe network and arranges
Water.At coal gas drainer downpipe horn mouth, due to the water flow that is corrosive for a long time, and it to be in gas piping again attached
Facility welds most weak position, and after running a period of time, tube wall is more and more thinner, encounters the mutation of environment temperature, at horn mouth
It usually will appear leakage coal gas, drainage.This not only affects the operation of production, and processing is also possible to cause great peace not in time
Full accident.Therefore the leak source at horn mouth must be repaired in time.
However, iron and steel enterprise production have the characteristics that it is successional.If gaspipe network is all cut off in each leak repairing, will necessarily be right
Production causes strong influence.And the electric spark that soldering generates online directly can bring great security risk.
Summary of the invention
Goal of the invention: in order to overcome the drawbacks of the prior art, the present invention provides a kind of coal gas drainer downpipe loudspeaker
Mouthful online trapping device, the device be capable of safety to carrying out online leak repairing at coal gas drainer downpipe horn mouth.
It is a further object of the present invention to provide the craft leakage mending methods using above-mentioned apparatus.
Technical solution: a kind of online trapping device of coal gas drainer downpipe horn mouth of the present invention, including first
Sleeve, second sleeve and ventilation pipe, the first sleeve are in the bottom-up toroidal gradually expanded, the second sleeve
It is connected to the lower end of first sleeve, the ventilation pipe is connected on second sleeve side wall, and is connected to the inside of second sleeve.
Wherein, for the ease of trapping operation, the first sleeve is put together by least two first sleeve components.It is described
Second sleeve is put together by two second sleeve components.
It is provided on ventilation pipe for switching air-flow and adjusting the gas valve of air-flow size, so as in leak repairing
The flow for the protection gas being passed through is controlled in journey.
And craft leakage mending method of the present invention, include the following steps:
Step 1: temporary blocking is carried out to gas leak point at horn mouth by the way of chemical plugging；
Step 2: hole is opened up on the side wall of a second sleeve component, and welds ventilation pipe；
Step 3: being passed through nitrogen from ventilation pipe, then stops over and be welded in the one of downpipe for the second sleeve component
The upper flange of secondary valve；
Step 4: welding another second sleeve component at the upper flange of a valve, and with welded second set
Cartridge unit split outside the short tube of downpipe forms second sleeve；
Step 5: it welds first sleeve component one by one above second sleeve, and forms first sleeve outside horn mouth；
Step 6: the top of first sleeve is closed up and is soldered on gas piping.
Also, in step 6 closing in welding process, nitrogen intake should be incrementally increased, guarantees nitrogen amount in confined space
Greater than gas volume.
The utility model has the advantages that the online trapping device is passed through protective gas during leak repairing by setting ventilation pipe,
The safety accident for preventing coal gas detonation realizes the online leak repairing that production is not stopped transport；Using being sleeved on outside original horn mouth
The mode in portion carries out leak repairing, and the new horn mouth of formation has Double-protection, and original horn mouth provides coal gas for the new horn mouth of outer layer
And the buffer function that condensed water washes away, increase new bell-mouthed service life.The craft leakage mending method makes full use of coal gas drainer
The design feature of downpipe carries out bell-mouthed gas leak point by the way of being directly socketed in outside original horn mouth
It blocks, without carrying out forcible entry operation to original horn mouth, saves the repair time.In the continuous operation for guaranteeing gaspipe network, protect
On the basis of demonstrate,proving construction safety, realize in tape water, the leak repairing operation with coal gas.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of trapping device of the present invention；
Fig. 2 is the usage state diagram of trapping device of the present invention.
Specific embodiment
In the following, being described in further details in conjunction with attached drawing to the present invention.
As shown in Figure 1, present embodiment discloses a kind of online trapping device of coal gas drainer downpipe horn mouth, including the
One sleeve 1, second sleeve 2, ventilation pipe 3 and gas valve 4.
First sleeve 1 is in the bottom-up toroidal gradually expanded, for the ease of operation when leak repairing construction, first sleeve
1 is put together by least two first sleeve components.
Second sleeve 2 is connected to the lower end of first sleeve 1.Correspondingly, second sleeve 1 is by two second sleeve portions in this example
Part is put together.
Ventilation pipe 3 using DN20 caliber pipeline, be connected on the side wall of second sleeve 2, and in second sleeve 2
Portion's connection.Gas valve 4 is arranged on ventilation pipe 3, for switching air-flow and adjusting the size of air-flow.
The present embodiment also discloses a kind of leak repairing using the above-mentioned online trapping device of coal gas drainer downpipe horn mouth
Method.
This method comprises the following steps:
Step 1: gas leak point at horn mouth 6 is blocked by the way of chemical plugging；Chemical plugging is interim
Property leak stopping, do not ensure that the stability of leak stopping, the gas flow of leakage can be only closed or slightly weakened with the short time.
Step 2: opening up hole on the side wall of a second sleeve component, and welds ventilation pipe 3；
Step 3: ventilation pipe 3 connects gas valve 4 and is passed through nitrogen, and then the second sleeve component is stopped over and welded
It is connected to the upper flange of a valve 9 of downpipe 8；
Step 4: welding another second sleeve component at the upper flange of a valve 9, and with welded second set
Cartridge unit forms second sleeve 2 in the 7 outside split of short tube of downpipe 8；
Step 5: it welds first sleeve component one by one above second sleeve 2, and forms first set outside horn mouth 6
Cylinder 1；
Step 6: the top of first sleeve 1 is closed up and is soldered on gas piping 5.When closing in welding, due to whole leakage
Confined space will be closed, logical by adjusting to guarantee that nitrogen amount and nitrogen pressure are greater than gas volume and gas pressure in space
Air valve 4 is gradually increased the nitrogen amount being passed through.
In leak repairing operation process, the condensed water of gas piping 5 still is able to enter row by a valve 9, secondary valve 10
Hydrophone 11.
Claims (7)
1. a kind of online trapping device of coal gas drainer downpipe horn mouth, which is characterized in that including first sleeve (1), second
Sleeve (2) and ventilation pipe (3), the first sleeve (1) are in the bottom-up toroidal gradually expanded, the second sleeve
(2) be connected to the lower end of first sleeve (1), the ventilation pipe (3) is connected on second sleeve (2) side wall, and with second set
The inside connection of cylinder (2).
2. the online trapping device of coal gas drainer downpipe horn mouth according to claim 1, which is characterized in that described
One sleeve (1) is put together by least two first sleeve components.
3. the online trapping device of coal gas drainer downpipe horn mouth according to claim 1, which is characterized in that described
Two sleeves (1) are put together by two second sleeve components.
4. the online trapping device of coal gas drainer downpipe horn mouth according to claim 1, which is characterized in that described logical
It is provided in feed channel (3) for switching air-flow and adjusting the gas valve (4) of air-flow size.
5. the online trapping device of coal gas drainer downpipe horn mouth according to claim 1, which is characterized in that described logical
The caliber of feed channel (3) is DN20.
6. a kind of benefit using the online trapping device of coal gas drainer downpipe horn mouth as described in any one of Claims 1 to 5
Leakage method, which comprises the steps of:
Step 1: temporary blocking is carried out to gas leak point at horn mouth (6) by the way of chemical plugging；
Step 2: opening up hole on the side wall of a second sleeve component, and welds ventilation pipe (3)；
Step 3: it is passed through nitrogen from ventilation pipe (3), then the second sleeve component is stopped over and is welded in downpipe (8)
The upper flange of valve (9)；
Step 4: welding another second sleeve component at the upper flange of a valve (9), and with the second sleeve welded
The external split of short tube (7) of the component in downpipe (8) forms second sleeve (2)；
Step 5: it welds first sleeve component one by one above second sleeve (2), and forms first set outside horn mouth (6)
Cylinder (1)；
Step 6: the top of first sleeve (1) is closed up and is soldered on gas piping (5).
7. craft leakage mending method according to claim 6, which is characterized in that in the step 6, when closing in is welded, be gradually increased
The nitrogen amount being passed through.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811273741.1A CN109268696B (en) | 2018-10-29 | 2018-10-29 | Online leakage repairing device and method for downpipe bell mouth of gas drainer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811273741.1A CN109268696B (en) | 2018-10-29 | 2018-10-29 | Online leakage repairing device and method for downpipe bell mouth of gas drainer |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109268696A true CN109268696A (en) | 2019-01-25 |
| CN109268696B CN109268696B (en) | 2024-06-14 |
Family
ID=65194075
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811273741.1A Active CN109268696B (en) | 2018-10-29 | 2018-10-29 | Online leakage repairing device and method for downpipe bell mouth of gas drainer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109268696B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113832340A (en) * | 2021-10-21 | 2021-12-24 | 南京钢铁股份有限公司 | Method for improving pressure of client-side blast furnace gas node |
Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6220302B1 (en) * | 2000-01-27 | 2001-04-24 | Jim B. Nolley | Chambered leak repairing device and method |
| CN2890572Y (en) * | 2004-12-21 | 2007-04-18 | 上海宝钢综合开发公司 | Composite reinforcement structure for gas pipe |
| JP2009228716A (en) * | 2008-03-20 | 2009-10-08 | Jfe Steel Corp | Repair method of gas piping |
| CN201866465U (en) * | 2010-11-25 | 2011-06-15 | 上海梅山钢铁股份有限公司 | Online repair device for gas leakage of gas pipeline |
| CN103406676A (en) * | 2013-07-18 | 2013-11-27 | 山西太钢不锈钢股份有限公司 | Coking ammonium sulphate front part gas pipeline pressure welding method |
| CN203500772U (en) * | 2013-09-29 | 2014-03-26 | 武汉钢铁(集团)公司 | Leaking stopping device of gas pipeline drainer horn mouth |
| CN204083656U (en) * | 2014-10-31 | 2015-01-07 | 武汉钢铁(集团)公司 | A kind of for the online bucket patch device with pressure of non-combustible gas pipeline |
| CN205424267U (en) * | 2016-03-18 | 2016-08-03 | 河北钢铁股份有限公司承德分公司 | Gas piping presses plugging device in area |
| CN206396267U (en) * | 2016-11-11 | 2017-08-11 | 新兴铸管股份有限公司 | A kind of blast furnace gas pipeline leakage repairing device |
| CN206617706U (en) * | 2016-12-23 | 2017-11-07 | 昆明钢铁集团有限责任公司 | A kind of gas piping dehydrator horn mouth corrosion leakage dynamic sealing means |
| CN209180677U (en) * | 2018-10-29 | 2019-07-30 | 南京钢铁股份有限公司 | The online trapping device of coal gas drainer downpipe horn mouth |
-
2018
- 2018-10-29 CN CN201811273741.1A patent/CN109268696B/en active Active
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6220302B1 (en) * | 2000-01-27 | 2001-04-24 | Jim B. Nolley | Chambered leak repairing device and method |
| CN2890572Y (en) * | 2004-12-21 | 2007-04-18 | 上海宝钢综合开发公司 | Composite reinforcement structure for gas pipe |
| JP2009228716A (en) * | 2008-03-20 | 2009-10-08 | Jfe Steel Corp | Repair method of gas piping |
| CN201866465U (en) * | 2010-11-25 | 2011-06-15 | 上海梅山钢铁股份有限公司 | Online repair device for gas leakage of gas pipeline |
| CN103406676A (en) * | 2013-07-18 | 2013-11-27 | 山西太钢不锈钢股份有限公司 | Coking ammonium sulphate front part gas pipeline pressure welding method |
| CN203500772U (en) * | 2013-09-29 | 2014-03-26 | 武汉钢铁(集团)公司 | Leaking stopping device of gas pipeline drainer horn mouth |
| CN204083656U (en) * | 2014-10-31 | 2015-01-07 | 武汉钢铁(集团)公司 | A kind of for the online bucket patch device with pressure of non-combustible gas pipeline |
| CN205424267U (en) * | 2016-03-18 | 2016-08-03 | 河北钢铁股份有限公司承德分公司 | Gas piping presses plugging device in area |
| CN206396267U (en) * | 2016-11-11 | 2017-08-11 | 新兴铸管股份有限公司 | A kind of blast furnace gas pipeline leakage repairing device |
| CN206617706U (en) * | 2016-12-23 | 2017-11-07 | 昆明钢铁集团有限责任公司 | A kind of gas piping dehydrator horn mouth corrosion leakage dynamic sealing means |
| CN209180677U (en) * | 2018-10-29 | 2019-07-30 | 南京钢铁股份有限公司 | The online trapping device of coal gas drainer downpipe horn mouth |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113832340A (en) * | 2021-10-21 | 2021-12-24 | 南京钢铁股份有限公司 | Method for improving pressure of client-side blast furnace gas node |
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| Publication number | Publication date |
|---|---|
| CN109268696B (en) | 2024-06-14 |
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