CN208953347U - A kind of gas shield sulphur coating unit - Google Patents
A kind of gas shield sulphur coating unit Download PDFInfo
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- CN208953347U CN208953347U CN201821465868.9U CN201821465868U CN208953347U CN 208953347 U CN208953347 U CN 208953347U CN 201821465868 U CN201821465868 U CN 201821465868U CN 208953347 U CN208953347 U CN 208953347U
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- high temperature
- temperature resistant
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Abstract
The utility model discloses a kind of gas shield sulphur coating units; the device includes two sets of gas shield devices; first set gas shield device includes the first high temperature resistant wide-mouth bottle, first gas trap and electric heating cover; first high temperature resistant wide-mouth bottle is sealed by the first rubber stopper; the first disengaging gas pipeline being connected with the first high temperature resistant wide-mouth bottle is provided on first rubber stopper; the connection of first gas trap is provided with the sharp mouth with glass cock on the exit of the first outlet line, the side wall of the first high temperature resistant wide-mouth bottle；Second set of gas shield device includes the second high temperature resistant wide-mouth bottle and second gas trap; second high temperature resistant wide-mouth bottle passes through the second rubber stopper; it is provided with the second disengaging gas pipeline being connected with the second high temperature resistant wide-mouth bottle on second rubber stopper and injection pipe, second gas trap are connected in the exit of the second outlet line；Using the coating method of the device it is possible to prevente effectively from coating the oxidation of sulphur powder in sulfur test sample preparation link.
Description
Technical field
The utility model relates to a kind of gas shield sulphur coating units, suitable for lab coater sulfur test study sample
The problem of oxidation in sulphur powder heating fusion process can be effectively avoided in preparation, it is ensured that grinds carrying out coating sulphur corrosion resistant test
The reliability of sample preparation when studying carefully.
Background technique
In acid gas reservoir production, development process, when the solubility of elements in gas sulphur reaches critical saturation, continue
Temperature and pressure is reduced, elementary sulfur will be precipitated, and deposit under certain conditions.In the transmission process of sulfur-containing oil-gas, liquid
State hydrate can be partly dissolved gaseous elementary sulfur, and will generate particle in duct bottom after the evaporation of these liquid hydrations
The sulphur of shape deposits.Element sulfur corrosion is one of the corrosion of most serious in oil-gas field development, since element sulphur is in the period 3, most
Outer layer is 6 electronics, is relatively easy to receiving and losing electrons, has a variety of chemical valences, and the compound of sulphur is also just rich and varied.Element sulphur is deposited
In the diversity of form, so that sulfur corrosion mechanism is abundant complicated, although the corrosion mechanism about sulphur has had certain research,
But its corrosion regularity and mechanism under high temperature and high pressure environment is still current research hotspot.Currently used element sulphur corrosion is ground
The method of studying carefully has following three kinds: (1) sulphur powder is added directly into etchant solution, suspended state sulphur-containing solution formed by blender,
Carry out the research of suspended state sulphur solution corrosion；(2) sample is placed in container bottom, sample is buried in the sulphur for being deposited on container bottom
In carry out anti-corrosion Journal of Sex Research；(3) sulphur powder is coated in metal testing plate surface, is placed in progress corrosion resistance examination in corrosive medium
It tests.These types of method is respectively suitable for various forms of corrosion researches, and it is outstanding that the 1st kind of suspended state sulphur solution corrosion studies achievable sulfur-bearing
Floating solution does not study sulphur deposition bring corrosion to the corrosion research of sample；Although the corruption of the 2nd kind of method research deposition sulphur
Erosion but its combination be it is loose be covered on sample surfaces comprehensively, be not inconsistent with the actual conditions of most of pipeline sulfur corrosions, it is existing
Field corrosion failure form, especially at down-hole string inclination, at the low-lying place of pipeline or device downstream rapid pressure drop, sulphur
Deposition be with single side, it is discontinuous dotted or it is irregular be attached to inner wall of the pipe, the corrosion test of sulphur coated form is closer
Actual conditions, the 3rd kind of research method is to be best suitable for the research method of field working conditions.But it finds in the course of the research, due to shaft bottom
Or some pumped (conveying) mediums are not oxygen-containing, then common during the preparation process make sulphur powder melt (elemental sulfur fusing point using heating
115.217 DEG C) and inherently there is problem in the preparation method coated on sample surfaces, will lead to the oxidation of sulphur powder, grind to test
Study carefully and brings error.
Utility model content
The utility model be in order to avoid coating sulfur test research sample preparation link in, because sulphur powder adds in air
Caused by heat fusing designed by sulphur powder oxidation, a kind of gas shield sulphur coating unit is provided, it is possible to prevente effectively from coating
The oxidation of sulphur powder in sulfur test sample preparation link.
What the utility model adopts the following technical solution to realize:
A kind of gas shield sulphur coating unit, including first set gas shield device, for carrying out sulphur under protective atmosphere
The melt process of powder and second set of gas shield device, the gas shield for coating procedure；Wherein,
First set gas shield device includes the first high temperature resistant wide-mouth bottle, first gas trap and is used for resistance to first
The electric heating cover of high temperature wide-mouth bottle heating, the first high temperature resistant wide-mouth bottle are sealed by the first rubber stopper, are arranged on the first rubber stopper
There are the first admission line and the first outlet line being connected with the first high temperature resistant wide-mouth bottle, the connection of first gas trap is the
The exit of one outlet line is provided with the sharp mouth with glass cock on the side wall of the first high temperature resistant wide-mouth bottle；
Second set of gas shield device includes the second high temperature resistant wide-mouth bottle and second gas trap, and the second high temperature resistant is wide
Mouth bottle is sealed by the second rubber stopper, is provided with the second air inlet pipe being connected with the second high temperature resistant wide-mouth bottle on the second rubber stopper
Line, the second outlet line and injection pipe, second gas trap are connected in the exit of the second outlet line；
When use state, sulphur powder to be heated is arranged in the first high temperature resistant wide-mouth bottle, and the test button to sulphur coating is set
It sets in the second high temperature resistant wide-mouth bottle, and is located at the underface of injection pipe outlet.
The utility model, which further improves, to be, first set gas shield device further includes being connected to from the first rubber stopper
Thermometer in first high temperature resistant wide-mouth bottle.
The utility model, which further improves, to be, is provided with first flowmeter on the first admission line.
The utility model, which further improves, to be, is provided with second flowmeter on the second admission line.
The utility model, which further improves, to be, glass cock is provided on injection pipe.
The utility model, which further improves, to be, is provided with valve on the first admission line and the first outlet line.
The utility model, which further improves, to be, is provided with valve on the second admission line and the second outlet line.
The utility model has following beneficial technical effect:
Gas shield sulphur coating unit provided by the utility model, structure is simple, easy to operate, can be to avoid coating sulphur
Oxidation caused by sulphur powder heating process in investigation corrosion, it is ensured that the coating effect of sulphur powder, and meanwhile it is low in cost, it is easy to
Other need to carry out solid or the field of solid-liquid substance heating coating is promoted.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of first set gas shield device；
In figure: 1- electric heating cover, 2- the first high temperature resistant wide-mouth bottle, 3- sulphur powder, the first admission line of 4-, 5- thermometer, 6-
First rubber stopper, 7- first flowmeter, the first outlet line of 8-, 9- first gas trap, sharp mouth of the 10- with glass cock.
Fig. 2 is the structural schematic diagram of second set of gas shield device；
In figure: 11- the second high temperature resistant wide-mouth bottle, 12- test button, the second admission line of 13-, the second rubber stopper of 14-,
15- second flowmeter, the second outlet line of 16-, 17- second gas trap, 18- injection pipe (band glass cock).
Specific embodiment
The utility model is made further instructions below in conjunction with drawings and examples.
The utility model be in order to avoid coating sulfur test research sample preparation link in, because sulphur powder adds in air
Caused by heat is melted designed by sulphur powder oxidation.
A kind of gas shield sulphur coating unit provided by the utility model, including two sets of gas shield devices, respectively
A set of gas shield device and second set of gas shield device.
As shown in Figure 1, first set gas shield device under protective atmosphere for carrying out the melt process of sulphur powder, including electricity
Heating mantle 1, the first high temperature resistant wide-mouth bottle 2 (side has the sharp mouth 10 with glass cock), the first admission line 4, first flow
Meter 7, thermometer 5, the first rubber stopper 6, the first outlet line 8 and first gas trap 9；Second set of gas shield device is used
In the gas shield of coating procedure, including the second high temperature resistant wide-mouth bottle 11, the second admission line 13, second flowmeter 15, second
Rubber stopper 14, the second outlet line 16, second gas trap 17 and injection pipe 18 (band glass cock).
In first set gas shield device, the first high temperature resistant wide-mouth bottle 2 is placed in electric heating cover 1, is controlled by electric heating cover 1
Heating temperature processed melts sulphur powder 3, while the thermometer 5 by measuring is determined and calibrates to heating temperature.First is resistance to
High temperature wide-mouth bottle 2 is sealed by the first rubber stopper 6, is driveed on the first rubber stopper 6 there are three hole, and one is used to install thermometer 5,
Another two is respectively used to the installation of the first admission line 4 and the first outlet line 8, the first admission line 4 and the first outlet line 8
It being all made of hose and guarantees there is the length of enough operations, the first admission line 4 protrudes into 2 bottom of the first high temperature resistant wide-mouth bottle, and first
Outlet line 8 is located at 6 lower end of the first rubber stopper.High purity inert gas is imported by the first admission line 4, thus resistance to by first
Air displacement in high temperature wide-mouth bottle 2 is gone out, and the time of displacement is related with flow and 2 volume of the first high temperature resistant wide-mouth bottle, flow
It is controlled by first flowmeter 7.The discharge of gas is realized by the first outlet line 8, to guarantee the first high temperature resistant wide-mouth bottle 2
Excessively high pressure build-up is not had inside, it is ensured that safety.First outlet line, 8 end connects first gas trap 9, passes through first
The uninterrupted of 9 observable of gas trap discharge gas.First high temperature resistant wide-mouth bottle, 2 side used has band glass cock
Sharp mouth 10, have piston on the sharp mouth 10 with glass cock, have circular hole on piston, can control by the circular hole of regulating piston molten
The outflow for melting state sulphur makes it be coated in 12 surface of test button.
When use: 1) the desired amount of sulphur powder 3 being packed into the first high temperature resistant wide-mouth bottle 2, and by thermometer 5 and the first air inlet pipe
Line 4 connects on the first rubber stopper 6, seals the first high temperature resistant wide-mouth bottle 2；2) the first high temperature resistant wide-mouth bottle 2 electricity is placed in add
In hot jacket 1, it is passed through air in the first high temperature resistant of inert gas displacement wide-mouth bottle 2, the displacement time is wide according to the first high temperature resistant used
Mouth bottle 2 and the gas flow size used, which calculate, to be determined, and by the observation gas mobility status of first gas trap 9, is avoided
Excessive or bubble-free generates；3) after to displacement, intake valve is adjusted, first gas trap 9 is made to maintain slow bubble
Occurring can (micro-positive pressure)；4) setting jacket temperature opens switch to required temperature, is adjusted by 5 displays temperature of thermometer
The setting of 1 temperature of electric heating cover, makes it in sulphur powder fusion temperature；5) it after sulphur powder fusing, closes electric heating cover 1 and switchs；6) pass through
The sharp mouth of 9 side of first gas trap, completes the coating of molten sulfur.
In second set of gas shield device, the second admission line 13 is used for the introducing of inert gas, the second outlet line 17
Consistent with first set gas shield device function for the discharge of gas, design has injection pipe 18 in the middle part of the second rubber stopper 14,
18 top of injection pipe has valve to inject molten sulfur by injection pipe, the metal examination for being coated in it in the second high temperature resistant wide-mouth bottle 11
12 surface of sample.
A kind of gas shield sulphur coating unit provided by the utility model, in use, the following steps are included:
1) preparation of test button: being machined into the test button 12 that method preparation meets required size as needed,
Recommend to punch in sample one end using the rectangular metal sample of 40*10*3mm if subsequent corrosion research needs to hang.
2) preparation of test button: test button 12 is polished to 800# sand paper finish or higher finish, finally
Cleaning, drying, measure size and weigh；The scraps of paper for preparing same size, by shape (the generally circular or tool of required coating sulphur
Have the line style of one fixed width) it is drawn on the scraps of paper, cuts, being pasted onto test piece (single or double), and record bonding area
And shape, test button 12 is placed in the second high temperature resistant wide-mouth bottle 11.
3) sulphur powder 3 for setting quality and ready test button 12 deoxygenation of gas shield device: are respectively put into two
In a high temperature resistant wide-mouth bottle, inert gas air intake valve is opened, is 100mL/min with minimum-rate, it is every by container volume size
It rises to and is passed through 20min less deoxygenation processing carried out to the second high temperature resistant wide-mouth bottle 11, when deoxygenation will guarantee to pass in and out air pipe unimpeded, keep away
Exempt from the higher pressure of accumulated gas generation in the second high temperature resistant wide-mouth bottle 11 to burst.
4) it the melting of sulphur powder: opens 1 to 115 DEG C of electric heating cover and melts sulphur powder 3, during which nitrogen is always with lesser flow
It is passed through, size can be controlled according to the bubble in 9 solution of first gas trap, had bubble to emerge i.e. and illustrated there is gas stream
Enter.
5) piston on 2 side point mouth of the first high temperature resistant wide-mouth bottle is opened, flow out at first 2 drop molten sulfurs are abandoned, with
The sulphur of molten state is coated at 12 surface exposure of test button by injection pipe 18 afterwards, after fixation to be cooled, takes out metal examination
Sample 12 removes the scraps of paper, obtains the test button 12 for being applied as fixed shape and size.
Embodiment
By taking the coating sulfur corrosion test specimen preparation of 316L stainless steel material as an example.
1) preparation of test button.Strip test button is prepared, test button end is punched for hanging or fixing；Gold
Belong to sample to be polished, polished with sand paper, is deoiled with solvent, dehydration of alcohol, drying, then weigh, measure size.
2) test button surface reserves the exposed section that a diameter is 5mm, remaining is covered with paper, is placed in the second high temperature resistant wide-mouth
In bottle 11, deoxygenation processing is carried out, then gives micro-positive pressure processing, for use.
3) melting of sulphur powder.100g sulphur powder 3 is placed in the first high temperature resistant wide-mouth bottle 2, connect the first admission line 4,
First outlet line 8 and thermometer 5 seal bottleneck；With nitrogen to carrying out deoxygenation processing in the first high temperature resistant wide-mouth bottle 2；Deoxygenation
After the completion, reduce inert gas flow, make to keep micro-positive pressure in the first high temperature resistant wide-mouth bottle 2, avoid the entrance of air；It opens
Electric heating cover 1 is warming up to 119 DEG C of sulphur powder fusing point, melts sulphur powder, stablizes to temperature, closes electric heating cover 1.
4) sulphur powder coats.Band proximity gloves take out the first high temperature resistant wide-mouth bottle 2, by the band on the first high temperature resistant wide-mouth bottle 2
The sharp mouth piston of glass cock is opened, and is abandoned front end 2 and is dripped molten sulfur, closure piston is then wide with the second high temperature resistant by it rapidly
The inlet of mouth bottle 11 is connected, and opens piston at two, and liquid sulfur is coated in 12 surface of test button；After cooling, metal is tapped
Sample 12 to confirm coating securely, complete by coating.
Claims (7)
1. a kind of gas shield sulphur coating unit, which is characterized in that including first set gas shield device, in protective atmosphere
The lower melt process and second set of gas shield device for carrying out sulphur powder, the gas shield for coating procedure；Wherein,
First set gas shield device includes the first high temperature resistant wide-mouth bottle (2), first gas trap (9) and is used for first
The electric heating cover (1) of high temperature resistant wide-mouth bottle (2) heating, the first high temperature resistant wide-mouth bottle (2) are sealed by the first rubber stopper (6), the
The first admission line (4) and the first outlet line being connected with the first high temperature resistant wide-mouth bottle (2) are provided on one rubber stopper (6)
(8), first gas trap (9) connection is in the exit of the first outlet line (8), the side wall of the first high temperature resistant wide-mouth bottle (2)
On be provided with the sharp mouth (10) with glass cock；
Second set of gas shield device includes the second high temperature resistant wide-mouth bottle (11) and second gas trap (17), the second high temperature resistant
Wide-mouth bottle (11) is sealed by the second rubber stopper (14), is provided with and the second high temperature resistant wide-mouth bottle (11) on the second rubber stopper (14)
The second admission line (13), the second outlet line (16) and the injection pipe (18) being connected, second gas trap (17) connection
In the exit of the second outlet line (16)；
When use state, test button of sulphur powder to be heated (3) setting in the first high temperature resistant wide-mouth bottle (2), to sulphur coating
(12) setting is in the second high temperature resistant wide-mouth bottle (11), and is located at the underface of injection pipe (18) outlet.
2. a kind of gas shield sulphur coating unit according to claim 1, which is characterized in that first set gas shield device
It further include the thermometer being connected to from the first rubber stopper (6) in the first high temperature resistant wide-mouth bottle (2).
3. a kind of gas shield sulphur coating unit according to claim 1, which is characterized in that on the first admission line (4)
It is provided with first flowmeter (7).
4. a kind of gas shield sulphur coating unit according to claim 3, which is characterized in that on the second admission line (13)
It is provided with second flowmeter (15).
5. a kind of gas shield sulphur coating unit according to claim 1, which is characterized in that injection pipe is provided on (18)
Glass cock.
6. a kind of gas shield sulphur coating unit according to claim 1, which is characterized in that the first admission line (4) and
First outlet line is provided with valve on (8).
7. a kind of gas shield sulphur coating unit according to claim 1, which is characterized in that the second admission line (13) and
Second outlet line is provided with valve on (16).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201821465868.9U CN208953347U (en) | 2018-09-07 | 2018-09-07 | A kind of gas shield sulphur coating unit |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201821465868.9U CN208953347U (en) | 2018-09-07 | 2018-09-07 | A kind of gas shield sulphur coating unit |
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| CN208953347U true CN208953347U (en) | 2019-06-07 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108982187A (en) * | 2018-09-07 | 2018-12-11 | 中国石油天然气集团有限公司 | A kind of gas shield sulphur coating unit and its coating method |
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2018
- 2018-09-07 CN CN201821465868.9U patent/CN208953347U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108982187A (en) * | 2018-09-07 | 2018-12-11 | 中国石油天然气集团有限公司 | A kind of gas shield sulphur coating unit and its coating method |
| CN108982187B (en) * | 2018-09-07 | 2024-01-30 | 中国石油天然气集团有限公司 | Gas protection sulfur coating device and coating method thereof |
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