CN206832610U - A kind of Corrosion of Oil Pipeline rate test device - Google Patents
A kind of Corrosion of Oil Pipeline rate test device Download PDFInfo
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- CN206832610U CN206832610U CN201720600690.3U CN201720600690U CN206832610U CN 206832610 U CN206832610 U CN 206832610U CN 201720600690 U CN201720600690 U CN 201720600690U CN 206832610 U CN206832610 U CN 206832610U
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- oil pipeline
- lacing film
- corrosion
- plug
- suspension wire
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Abstract
The utility model discloses a kind of Corrosion of Oil Pipeline rate test device, belong to pipeline corrosion protection field.The device includes：Plug, seating nipple, valve, the pipe nipple being from top to bottom sequentially connected with, pipe nipple connect with oil pipeline to be measured.First longitudinal direction through hole is provided with plug.The device also includes：Suspension wire and the metal lacing film in oil pipeline.Suspension wire can sequentially pass through first longitudinal direction through hole, seating nipple, valve, pipe nipple up or down, and lower end is connected with metal lacing film.Corrosion of Oil Pipeline rate test device provided by the utility model, metal lacing film is set to be immersed in the crude oil in oil pipeline by suspension wire, and the crude oil that will not be flowed washes away, so that metal lacing film can carry out corrosion rate test in oil pipeline, avoid test fluid, that is the change of oil composition and test environment, so that the test result of metal lacing film corrosion rate is more accurate.
Description
Technical field
Pipeline corrosion protection field is the utility model is related to, more particularly to a kind of Corrosion of Oil Pipeline rate test device.
Background technology
, can be to oil transportation when being conveyed in oil pipeline containing impurity such as water, hydrogen sulfide, carbon dioxide, inorganic salts in crude oil
Pipeline causes to corrode, and causes pipe perforation, oil, gas and water leakage, not only causes economic loss, pollute environment, it is also possible to draw
Send out security incident.It is therefore desirable to preservative treatment is carried out to oil pipeline.In order to understand the effect of preservative treatment, it is necessary to oil transportation
The corrosion rate of pipeline is measured, and to be adjusted in time to anti-corrosion measure, extends the service life of oil pipeline.Therefore,
It is very necessary to provide a kind of device that can be tested the corrosion rate of oil pipeline.
Prior art provides a kind of constant temperature humidity chamber, and the temperature of chamber, humidity, pressure adjustable are defeated to simulate
Environment in oil-piping.In use, first obtaining the crude oil sample in oil pipeline, handled through precipitated and separated, remove upper strata crude oil,
Obtain test liquid.Test liquid is poured into chamber, the metal lacing film with oil pipeline phase same material is then put into survey
In test solution, temperature, humidity, the pressure of chamber are adjusted according to the ambient parameter in oil pipeline, makes metal lacing film defeated in simulation
Corrosion rate test is carried out in the environment of oil-piping.After the scheduled time, metal lacing film is taken out, cleans and weighs, calculates corrosion
Speed.
Designer has found that prior art at least has following technical problem：
, it is necessary to by oil pipeline when the climatic chamber provided using prior art carries out Corrosion of Oil Pipeline rate test
In crude oil sample be transported to laboratory, during transport, the composition of crude oil sample easily changes, and climatic chamber
Actual environment in the environment and oil pipeline of simulation causes corrosion rate test result inaccurate there is also deviation.
Utility model content
The utility model embodiment technical problem to be solved is, there is provided a kind of measurement is accurate, easy to use
Corrosion of Oil Pipeline rate test device, concrete technical scheme are as follows：
The utility model embodiment provides a kind of Corrosion of Oil Pipeline rate test device, and described device includes：By upper
Plug, seating nipple, valve, the pipe nipple being sequentially connected with, the pipe nipple connect with oil pipeline to be measured.
First longitudinal direction through hole is provided with the plug.
Described device also includes：Suspension wire and the metal lacing film in the oil pipeline.
The suspension wire can sequentially pass through the first longitudinal direction through hole, seating nipple, the valve, described up or down
Pipe nipple, and lower end is connected with the metal lacing film.
Specifically, preferably, being provided with a circle annular step on the upper end inwall of the seating nipple.The plug bag
Include：The upper connecting portion and lower connecting portion being sequentially connected with, the lower connecting portion are threadedly coupled with the madial wall of the annular step.
Specifically, preferably, the top setting of the upper connecting portion is fluted, packing is placed with the groove.
Specifically, preferably, described device also includes pressure cap, the bottom of the pressure cap detachably connects with the groove
Connect, bottom surface props up the packing.
Specifically, lead to preferably, being provided with the second longitudinal direction being connected with the first longitudinal direction through hole on the pressure cap
Hole, for through the suspension wire.
Specifically, preferably, the upper end of the suspension wire is provided with draw ring, the top surface phase of the draw ring and the pressure cap
Support.
Specifically, preferably, described device also includes：Protective case, cover are mounted in the outside of the pressure cap and the plug,
The lower inner wall of the protective case is threadedly coupled with the external wall of upper portion of the seating nipple.
Specifically, preferably, the upper end of the lower end of the seating nipple and the valve, and the lower end of the valve with
The upper end of the pipe nipple is flange connection.
The beneficial effect brought of technical scheme that the utility model embodiment provides is：
The Corrosion of Oil Pipeline rate test device that the utility model embodiment provides, from top to bottom sequentially connected by setting
Plug, seating nipple, valve, the pipe nipple connect, and pipe nipple is connected with oil pipeline, to provide space for the suspension of lacing film.Pass through
First longitudinal direction through hole is set on plug, and suspension wire is sequentially passed through first longitudinal direction through hole, seating nipple, valve up or down
Door, pipe nipple, make the lower end of suspension wire be connected with metal lacing film, metal lacing film is immersed in the crude oil in oil pipeline by suspension wire,
And the crude oil that will not be flowed washes away, so that metal lacing film can carry out corrosion rate test in oil pipeline, survey is avoided
The change of test solution body (i.e. crude oil) composition and test environment, so that the test result of metal lacing film corrosion rate is more accurate.
It can be seen that the Corrosion of Oil Pipeline rate test device that the utility model embodiment provides, measurement is accurate, easy to use, suitable for rule
Modelling popularization and application.
Brief description of the drawings
, below will be to needed for embodiment description in order to illustrate more clearly of the technical scheme in the embodiment of the utility model
The accompanying drawing to be used is briefly described, it should be apparent that, drawings in the following description are only some realities of the present utility model
Example is applied, for those of ordinary skill in the art, on the premise of not paying creative work, can also be according to these accompanying drawings
Obtain other accompanying drawings.
Fig. 1 is the structure chart for the Corrosion of Oil Pipeline rate test device that the utility model embodiment provides.
Reference represents respectively：
1 plug,
101 first longitudinal direction through holes,
2 seating nipples,
201 annular steps,
3 valves,
4 pipe nipples,
5 oil pipelines,
6 suspension wires,
601 draw rings,
7 lacing films,
8 packings,
9 pressure caps,
901 second longitudinal direction through holes,
10 protective cases.
Embodiment
, below will be to the utility model embodiment party to make the purpose of this utility model, technical scheme and advantage clearer
Formula is described in further detail.
The utility model embodiment provides a kind of Corrosion of Oil Pipeline rate test device, as shown in Figure 1, the device
Including：Plug 1, seating nipple 2, valve 3, the pipe nipple 4 being from top to bottom sequentially connected with, pipe nipple 4 connect with oil pipeline 5 to be measured.It is stifled
First longitudinal direction through hole 101 is provided with first 1.
The device also includes：Suspension wire 6 and the metal lacing film 7 in oil pipeline 5.
Suspension wire 6 can sequentially pass through first longitudinal direction through hole 101, seating nipple 2, valve 3, pipe nipple 4 up or down, and lower end with
Metal lacing film 7 connects.
The operation principle of the Corrosion of Oil Pipeline rate test device provided below with regard to the utility model embodiment is explained
State：
First, a connecting hole is made a call on oil pipeline 5, pipe nipple 4 is welded on connecting hole, and is connected with connecting hole,
Corrosion of Oil Pipeline rate test device is arranged on oil pipeline 5.Then, suspension wire 6 is passed through into the first longitudinal direction on plug 1
Through hole 101, and fasten in the lower end of suspension wire 6 with the material identical metal lacing film 7 of oil pipeline 5, now suspension wire 6 is tortuous in seating nipple
In 2, metal lacing film 7 is located in seating nipple 2.Then, open valve 3, make metal lacing film 7 under gravity by valve 3,
Pipe nipple 4 enters in oil pipeline 5, ensures that metal lacing film 7 is immersed in the crude oil in oil pipeline 5, now suspension wire 6 is straightened.Together
When, the upper end of suspension wire 6 is fixed on plug 1, avoids suspension wire 6 from falling into oil pipeline 5.After the scheduled time, above carry stifled
First 1, by the taking-up out of oil pipeline 5 by metal lacing film 7 of suspension wire 6, valve 3 is closed, metal lacing film 7 is cleaned, weighed,
The corrosion rate of oil pipeline 5 is calculated.
The Corrosion of Oil Pipeline rate test device that the utility model embodiment provides, from top to bottom sequentially connected by setting
Plug 1, seating nipple 2, valve 3, the pipe nipple 4 connect, and pipe nipple 4 is connected with oil pipeline 5, provide sky with the suspension for lacing film 7
Between.By setting first longitudinal direction through hole 101 on plug 1, and suspension wire 6 is set to sequentially pass through first longitudinal direction through hole up or down
101st, seating nipple 2, valve 3, pipe nipple 4, make the lower end of suspension wire 6 be connected with metal lacing film 7, are immersed in metal lacing film 7 by suspension wire 6
In crude oil in oil pipeline 5, and the crude oil that will not be flowed washes away, so that metal lacing film 7 can be carried out in oil pipeline 5
Corrosion rate is tested, and the change of test liquid (i.e. crude oil) composition and test environment is avoided, so that metal lacing film 7 corrodes speed
The test result of rate is more accurate.It can be seen that the Corrosion of Oil Pipeline rate test device that the utility model embodiment provides, measurement
Accurately, it is easy to use, suitable for large-scale promotion application.
Specifically, plug 1 is used for the upper end for blocking seating nipple 2, prevents that the crude oil in oil pipeline 5 is excessive.For the ease of
The connection of plug 1 and seating nipple 2, a circle annular step 201, annular step 201 are provided with the upper end inwall of seating nipple 2
Position-limiting action is played, prevents plug 1 from falling into seating nipple 2, causes plug 1 to take out difficulty.Plug 1 includes：What is be sequentially connected with is upper
Connecting portion and lower connecting portion, lower connecting portion are threadedly coupled with the madial wall of annular step 201, so that plug 1 and seating nipple 2
With reference to more firmly, and it is easily installed and dismantles.Drive suspension wire 6 and metal lacing film 7 to move up and down by plug 1, be easy to make gold
Taken out in the crude oil that category lacing film 7 is immersed in oil pipeline 5 or from crude oil.The external diameter of upper connecting portion is more than lower connecting portion, and on
The lower surface of connecting portion offsets with annular step 201, in order to which plug 1 blocks to the top of seating nipple 2, avoids crude oil
It is excessive.
In order to further avoid the crude oil in oil pipeline 5 excessive, the top of connecting portion is set fluted on plug 1, recessed
Packing 8 is placed with groove.The groove is circular groove, and packing 8 is annular or spiral shape.After packing 8 is placed in circular groove,
Centre forms a cylindrical channel being adapted with suspension wire 6, and is connected with the first longitudinal direction through hole 101 on plug 1, suspension wire 6
Through the cylindrical channel, and it is stuck on the top surface of packing 8.The top of plug 1 is kept closing by packing 8, avoid outside crude oil
Let out, and a space closed is provided for the corrosion test of metal lacing film 7, avoid interference of the extraneous factor to test result, make
Test result is more accurate.
As shown in Figure 1, Corrosion of Oil Pipeline rate test device also includes pressure cap 9, and the bottom of pressure cap 9 and groove are removable
Connection is unloaded, bottom surface props up packing 8.Pressure cap 9 is T-shaped, in the groove on the bottom insertion plug 1 of pressure cap 9, and props up packing 8, with
Packing 8 is compacted, the sealing effectiveness of packing 8 is improved, avoids crude oil seepage.External screw thread is additionally provided with the side wall of the bottom of pressure cap 9,
External screw thread is provided with the recess sidewall of plug 1, so that pressure cap 9 is threadedly coupled with groove, so as to adjust packing 8 by pressure cap 9
Tightness, avoid packing 8 from rocking, ensure the sealing on plug 1 top.
The second longitudinal direction through hole 901 being connected with first longitudinal direction through hole 101 is additionally provided with pressure cap 9, for through suspension wire
6.Specifically, first longitudinal direction through hole 101 with second longitudinal direction through hole 901 is connected by the cylindrical channel formed among packing 8
, first longitudinal direction through hole 101, cylindrical channel, second longitudinal direction through hole 901 formed passage, for make suspension wire 6 by, so as to
In the position that metal lacing film 7 is adjusted by suspension wire 6, ensure the progress of the corrosion rate test of metal lacing film 7.
Suspension wire 6 is used for the position for adjusting metal lacing film 7, and ensures that the crude oil that metal lacing film 7 is not flowed washes away.Suspension wire 6
Length should ensure that metal lacing film 7 immerse oil pipeline 5 in crude oil in.For the ease of the fixation of the position of suspension wire 6, suspension wire 6
Upper end be provided with the draw ring 601 of annular shape, draw ring 601 is stuck on the top surface of pressure cap 9.Suspension wire 6 is avoided to fall into by draw ring 601
In seating nipple 2, metal lacing film 7 is caused to take out difficulty.After draw ring 601 is set, ring 601 is lifted on operating personnel, you can by metal
Lacing film 7 takes out out of oil pipeline 5, is adjusted with the position to metal lacing film 7.For example, when metal lacing film 7 is in oil pipeline
When position in 5 is improper, upper lifting ring 601, metal lacing film 7 is pulled in seating nipple 2 by suspension wire 6, closes valve 3, is adjusted
After the length of whole good suspension wire 6, valve 3 is reopened, metal lacing film 7 is transferred to oil pipeline 5 again, so as to realize metal
The adjustment of the position of lacing film 7.
Corrosion of Oil Pipeline rate test device also includes：Protective case 10, cover is mounted in the outside of pressure cap 9 and plug 1, protection
The lower inner wall of set 10 is threadedly coupled with the external wall of upper portion of seating nipple 2.
Protective case 10 is used to protect plug 1 and pressure cap 9, avoids in corrosion rate test process, pressure cap 9 and plug
1 it is unexpected loosen, cause that crude oil leaks or corrosion rate test is affected, meanwhile, extend the service life of pressure cap 9 and plug 1.
Protective case 10 is threadedly coupled with seating nipple 2, in order to the installation and removal of protective case 10, and protective case 10 is firmly covered and is mounted in
The outside of pressure cap 9 and plug 1, realize the protection to pressure cap 9 and plug 1.
Seating nipple 2 and pipe nipple 4 in Corrosion of Oil Pipeline rate test device are used to enter or leave defeated for metal lacing film 7
Oil-piping 5 provides passage, opening and closing for the ease of the passage, is provided with valve 3 on passage.The lower end of seating nipple 2 with
The upper end of valve 3, and the lower end of valve 3 are that flange is connected with the upper end of pipe nipple 4.Flange connection is solid and reliable, close
Envelope property is good, and convenient disassembly, is easy to the maintenance and maintenance of Corrosion of Oil Pipeline rate test device.
Specifically, valve 3 is gate valve, and the pressure rating that valve 3 can be born can be entered according to the design pressure of oil pipeline 5
Row selection, for example, 2.5MPa, 4MPa, 6.4MPa etc..When needing to carry out corrosion rate test, valve 3 is opened, makes metal lacing film
7 enter pipe nipple 4 by valve 3, finally reach in oil pipeline 5.Corrosion rate is completed, and after metal lacing film 7 is taken out, is closed
Valve closing door 3, ensure the sealing of oil pipeline 5, avoid the crude oil leakage in oil pipeline 5.
Using Corrosion of Oil Pipeline rate test device carry out corrosion rate test method be：First, metal lacing film 7 is claimed
Quality.Then corrosion test is carried out using Corrosion of Oil Pipeline rate test device.After the scheduled time, by metal lacing film
7 take out, and clean, weigh again, the annual corruption of metal lacing film 7 (i.e. oil pipeline 5) is obtained according to the calculation formula of corrosion rate
Lose depth (unit：mm).
The calculation formula of corrosion rate is：
Wherein, F-corrosion rate：mm/a；m1The quality of metal lacing film, unit before-corrosion test：g；m2- corrosion test
The quality of metal lacing film afterwards, unit：g；The surface area of S-metal lacing film, unit：cm2；tf- test period, unit：My god；ρ—
The density of metal lacing film, unit：g/cm3。
The Corrosion of Oil Pipeline rate test device that the utility model embodiment provides, can make and the material of oil pipeline 5
Identical metal lacing film 7 carries out corrosion rate test in the actual working environment of oil pipeline 5, and test condition is true, therefore,
Test result is also relatively reliable.
Preferred embodiment of the present utility model is the foregoing is only, not to limit the scope of protection of the utility model,
All any modification, equivalent substitution and improvements within the spirit and principles of the utility model, made etc., should be included in this reality
Within new protection domain.
Claims (8)
1. a kind of Corrosion of Oil Pipeline rate test device, it is characterised in that described device includes：From top to bottom it is sequentially connected with
Plug (1), seating nipple (2), valve (3), pipe nipple (4), the pipe nipple (4) connect with oil pipeline to be measured (5)；
First longitudinal direction through hole (101) is provided with the plug (1)；
Described device also includes：Suspension wire (6) and the metal lacing film (7) in the oil pipeline (5)；
The suspension wire (6) can sequentially pass through the first longitudinal direction through hole (101), the seating nipple (2), the valve up or down
Door (3), the pipe nipple (4), and lower end is connected with the metal lacing film (7).
2. device according to claim 1, it is characterised in that be provided with a circle on the upper end inwall of the seating nipple (2)
Annular step (201)；
The plug (1) includes：The upper connecting portion and lower connecting portion being sequentially connected with, the lower connecting portion and the annular step
(201) madial wall threaded connection.
3. device according to claim 2, it is characterised in that the top setting of the upper connecting portion is fluted, described recessed
Packing (8) is placed with groove.
4. device according to claim 3, it is characterised in that described device also includes pressure cap (9), the pressure cap (9)
Bottom is detachably connected with the groove, and bottom surface props up the packing (8).
5. device according to claim 4, it is characterised in that be provided with the pressure cap (9) and lead to the first longitudinal direction
The second longitudinal direction through hole (901) that hole (101) is connected, for through the suspension wire (6).
6. device according to claim 5, it is characterised in that the upper end of the suspension wire (6) is provided with draw ring (601), institute
The top surface for stating draw ring (601) and the pressure cap (9) offsets.
7. device according to claim 6, it is characterised in that described device also includes：Protective case (10), cover is mounted in described
The outside of pressure cap (9) and the plug (1), the lower inner wall of the protective case (10) and the external wall of upper portion of the seating nipple (2)
Threaded connection.
8. device according to claim 1, it is characterised in that the lower end of the seating nipple (2) is upper with the valve (3)
End, and the lower end of the valve (3) is that flange is connected with the upper end of the pipe nipple (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720600690.3U CN206832610U (en) | 2017-05-26 | 2017-05-26 | A kind of Corrosion of Oil Pipeline rate test device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720600690.3U CN206832610U (en) | 2017-05-26 | 2017-05-26 | A kind of Corrosion of Oil Pipeline rate test device |
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| Publication Number | Publication Date |
|---|---|
| CN206832610U true CN206832610U (en) | 2018-01-02 |
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ID=60773634
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720600690.3U Active CN206832610U (en) | 2017-05-26 | 2017-05-26 | A kind of Corrosion of Oil Pipeline rate test device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110274866A (en) * | 2018-03-14 | 2019-09-24 | 中国石油化工股份有限公司 | The hanger device and method of gas phase and aqueous etching can be monitored simultaneously |
-
2017
- 2017-05-26 CN CN201720600690.3U patent/CN206832610U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110274866A (en) * | 2018-03-14 | 2019-09-24 | 中国石油化工股份有限公司 | The hanger device and method of gas phase and aqueous etching can be monitored simultaneously |
| CN110274866B (en) * | 2018-03-14 | 2022-05-20 | 中国石油化工股份有限公司 | Coupon device and method capable of simultaneously monitoring gas-phase corrosion and liquid-phase corrosion |
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