CN107167031A - The dissolving cleaning of sinter in natural gas coil pipe - Google Patents
The dissolving cleaning of sinter in natural gas coil pipe Download PDFInfo
- Publication number
- CN107167031A CN107167031A CN201710418101.4A CN201710418101A CN107167031A CN 107167031 A CN107167031 A CN 107167031A CN 201710418101 A CN201710418101 A CN 201710418101A CN 107167031 A CN107167031 A CN 107167031A
- Authority
- CN
- China
- Prior art keywords
- coil pipe
- natural gas
- cleaning solvent
- cleaning
- sinter
- 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.)
- Pending
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28G—CLEANING OF INTERNAL OR EXTERNAL SURFACES OF HEAT-EXCHANGE OR HEAT-TRANSFER CONDUITS, e.g. WATER TUBES OR BOILERS
- F28G9/00—Cleaning by flushing or washing, e.g. with chemical solvents
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28G—CLEANING OF INTERNAL OR EXTERNAL SURFACES OF HEAT-EXCHANGE OR HEAT-TRANSFER CONDUITS, e.g. WATER TUBES OR BOILERS
- F28G15/00—Details
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Cleaning In General (AREA)
- Cleaning And De-Greasing Of Metallic Materials By Chemical Methods (AREA)
Abstract
The invention discloses a kind of dissolving cleaning of sinter in natural gas coil pipe, comprise the following steps：Coil pipe is rinsed with running water, after dust and dirt in coil pipe is cleared, the cleaning solvent prepared slowly is poured into coil pipe, open firing coil pipe outer wall is used again, by cleaning solvent temperature control in coil pipe in 70~100 DEG C, continue 10 12 days, cleaning solvent and dirt are discharged again, with clear water flushing pipe repeatedly, the cleaning solvent newly prepared is poured into coil pipe again, condition is constant to continue 20 days, when being rinsed repeatedly with clear water, then by using natural gas or air blown line process that the moisture in coil pipe is drained.
Description
Technical field
The present invention relates to a kind of dissolving cleaning of sinter in natural gas coil pipe.
Background technology
Certain auto producer, because natural gas sinters dirt into, plugs the circulation of natural gas in coil pipe, causes automobile factory to stop
Production, economic loss is serious, in order to wash sinter, dredging pipeline, and they have carried out following cleaning experiment.Sinter
Constituent analysis：The sinter taken out out of coil pipe, sinter outward appearance is hard black stone block, and sinter is from natural gas in disk
By 380-420 DEG C of coil pipe external heat during Bottomhole pressure, caused by long term accumulation.Natural gas main component is CH4, containing a small amount of H2
, SO2 .H2S and micro Ar.Ne, He inert gas.CH4 after heating, becomes brilliant just carbon, and sulfur compound etc. miscellaneous
Matter, and carbon is positive tetravalence, is most stable of element in first capsule periodic table, it is difficult to dissolve.Cleared up using physical heating method：
Red 30 h of black stone block burning is not changed with natural gas and not melted, red-black stone a few hours is burnt with ethene oxygen, does not change and do not melt；Will be black
Stone is placed on 13h on electric furnace heating wire, does not still change and does not melt.Cleared up using chemical method：By black stone block be put in respectively H2SO4,
In HC1, HN03 and NaOH solution, or it is put in chloroazotic acid, soak at room temperature, 70-100 DEG C of immersion are not changed still not after a couple of days
It is molten.
The content of the invention
The technical problems to be solved by the invention are：A kind of dissolving cleaning of sinter in natural gas coil pipe is provided.
In order to solve the above-mentioned technical problem, the technical scheme is that：The dissolving cleaning of sinter in natural gas coil pipe
Technique, comprises the following steps：Coil pipe is rinsed with running water, after dust and dirt in coil pipe is cleared, by the cleaning solvent prepared slowly
Pour into coil pipe, then with open firing coil pipe outer wall, by cleaning solvent temperature control in coil pipe in 70~100 DEG C, continue
10-12 days, then cleaning solvent and dirt are discharged, disk is poured into clear water flushing pipe repeatedly, then by the cleaning solvent newly prepared
In pipe, condition is constant to continue 20 days, when being rinsed repeatedly with clear water, then by using natural gas or air blown line process by disk
Moisture in pipe is drained.
In order to preferably solve above-mentioned technical problem, further technical scheme of the invention is：Described cleaning solvent
Formula includes following composition：140-160g/LHzSO4,8-10 g/L oxidants and 1-2 g/L corrosion inhibiter.
It is an advantage of the invention that：The dissolving cleaning of sinter in above-mentioned natural gas coil pipe, can be by sinter in coil pipe
All remove, it is ensured that the circulation of natural gas in coil pipe, improve the thermal efficiency and reach 85%, the energy-saving and emission-reduction efficiency greatly improved, reduction
Operating cost.
Embodiment
The particular content of the present invention is described in detail below by specific embodiment.
The dissolving cleaning of sinter, comprises the following steps in natural gas coil pipe：Coil pipe is rinsed with running water, coil pipe is treated
After interior dust and dirt is cleared, the cleaning solvent prepared slowly is poured into coil pipe, then with open firing coil pipe outer wall, will be clear in coil pipe
Solvent temperature control is washed in 70~100 DEG C, continues 10-12 days, then cleaning solvent and dirt are discharged, is rushed repeatedly with clear water
Pipeline is washed, then the cleaning solvent newly prepared is poured into coil pipe, condition is constant to continue 20 days, when being rinsed repeatedly with clear water, then
By using natural gas or air blown line process that the moisture in coil pipe is drained, the formula of described cleaning solvent includes
Following composition：140-160g/LHzSO4,8-10 g/L oxidants and 1-2 g/L corrosion inhibiter.Reaction principle：Sintering in coil pipe
Thing is in the presence of chemical solvent and oxidant：C+O2 →CO2；Fe+H2SO4→FeSO4+H2↑；Corrosion inhibiter is in coil metal
A barrier film is formed between surface and chemical solvent, can not only prevent coil pipe inwall produce corrosion but also can make chemical solvent fully with burning
Tie the biochemical reaction of produce.
Embodiment 1
The dissolving cleaning of sinter, comprises the following steps in natural gas coil pipe：Coil pipe is rinsed with running water, dirt in coil pipe is treated
After dirt is cleared, the cleaning solvent prepared slowly is poured into coil pipe, then with open firing coil pipe outer wall, it is molten by being cleaned in coil pipe
Agent temperature control continues 12 days in 70 DEG C, then cleaning solvent and dirt are discharged, with clear water flushing pipe, then will be new repeatedly
The cleaning solvent of preparation is poured into coil pipe, and condition is constant to continue 20 days, when being rinsed repeatedly with clear water, then by using natural gas or
Air blown line process is drained by the moisture in coil pipe, and the formula of described cleaning solvent includes following composition：140g/
LHzSO4,8g/L oxidant and 1g/L corrosion inhibiter.
Embodiment 2
The dissolving cleaning of sinter, comprises the following steps in natural gas coil pipe：Coil pipe is rinsed with running water, dirt in coil pipe is treated
After dirt is cleared, the cleaning solvent prepared slowly is poured into coil pipe, then with open firing coil pipe outer wall, it is molten by being cleaned in coil pipe
Agent temperature control continues 11 days in 90 DEG C, then cleaning solvent and dirt are discharged, with clear water flushing pipe, then will be new repeatedly
The cleaning solvent of preparation is poured into coil pipe, and condition is constant to continue 20 days, when being rinsed repeatedly with clear water, then by using natural gas or
Air blown line process is drained by the moisture in coil pipe, and the formula of described cleaning solvent includes following composition：150g/
LHzSO4,9g/L oxidant and 2 g/L corrosion inhibiter.
Embodiment 2
The dissolving cleaning of sinter, comprises the following steps in natural gas coil pipe：Coil pipe is rinsed with running water, dirt in coil pipe is treated
After dirt is cleared, the cleaning solvent prepared slowly is poured into coil pipe, then with open firing coil pipe outer wall, it is molten by being cleaned in coil pipe
Agent temperature control continues 10 days in 100 DEG C, then cleaning solvent and dirt are discharged, with clear water flushing pipe, then will be new repeatedly
The cleaning solvent of preparation is poured into coil pipe, and condition is constant to continue 20 days, when being rinsed repeatedly with clear water, then by using natural gas or
Air blown line process is drained by the moisture in coil pipe, and the formula of described cleaning solvent includes following composition：160g/
LHzSO4,10 g/L oxidants and 2 g/L corrosion inhibiter.
Claims (2)
1. the dissolving cleaning of sinter in natural gas coil pipe, it is characterised in that：Comprise the following steps：Use running water washing tray
Pipe, after dust and dirt in coil pipe is cleared, the cleaning solvent prepared slowly is poured into coil pipe, then with open firing coil pipe outer wall,
By cleaning solvent temperature control in coil pipe in 70~100 DEG C, continue 10-12 days, then cleaning solvent and dirt are discharged, use
Clear water flushing pipe, then the cleaning solvent newly prepared is poured into coil pipe repeatedly, condition is constant to continue 20 days, is rushed repeatedly with clear water
It is then by using natural gas or air blown line process that the moisture in coil pipe is drained when washing.
2. according to the dissolving cleaning of sinter in the natural gas coil pipe described in claim 1, it is characterised in that：Described is clear
Washing the formula of solvent includes following composition：140-160g/LHzSO4,8-10 g/L oxidants and 1-2 g/L corrosion inhibiter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710418101.4A CN107167031A (en) | 2017-06-06 | 2017-06-06 | The dissolving cleaning of sinter in natural gas coil pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710418101.4A CN107167031A (en) | 2017-06-06 | 2017-06-06 | The dissolving cleaning of sinter in natural gas coil pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107167031A true CN107167031A (en) | 2017-09-15 |
Family
ID=59825592
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710418101.4A Pending CN107167031A (en) | 2017-06-06 | 2017-06-06 | The dissolving cleaning of sinter in natural gas coil pipe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107167031A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101097040A (en) * | 2007-07-24 | 2008-01-02 | 李向东 | Method for restraining gas hydrate in natural gas pipe line and device thereof |
| CN103143533A (en) * | 2012-09-03 | 2013-06-12 | 濮阳市德胜实业有限公司 | Cleaning and blockage relieving technology of gathering and transportation system for oil and natural gas field highly containing sulfuric acid |
| CN104438243A (en) * | 2014-11-12 | 2015-03-25 | 贵州大学 | Method for removing scars in inner pipes of one-pipe piping preheater |
| CN106085397A (en) * | 2016-06-17 | 2016-11-09 | 陕西延长石油（集团）有限责任公司（延长油矿管理局）油气勘探公司 | A kind of gas gathering pipeline de-plugging agent and preparation method thereof and method for removing blockage |
-
2017
- 2017-06-06 CN CN201710418101.4A patent/CN107167031A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101097040A (en) * | 2007-07-24 | 2008-01-02 | 李向东 | Method for restraining gas hydrate in natural gas pipe line and device thereof |
| CN103143533A (en) * | 2012-09-03 | 2013-06-12 | 濮阳市德胜实业有限公司 | Cleaning and blockage relieving technology of gathering and transportation system for oil and natural gas field highly containing sulfuric acid |
| CN104438243A (en) * | 2014-11-12 | 2015-03-25 | 贵州大学 | Method for removing scars in inner pipes of one-pipe piping preheater |
| CN106085397A (en) * | 2016-06-17 | 2016-11-09 | 陕西延长石油（集团）有限责任公司（延长油矿管理局）油气勘探公司 | A kind of gas gathering pipeline de-plugging agent and preparation method thereof and method for removing blockage |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20170915 |
|
| WD01 | Invention patent application deemed withdrawn after publication |