CN206064946U - A kind of spherical pig - Google Patents
A kind of spherical pig Download PDFInfo
- Publication number
- CN206064946U CN206064946U CN201621069956.8U CN201621069956U CN206064946U CN 206064946 U CN206064946 U CN 206064946U CN 201621069956 U CN201621069956 U CN 201621069956U CN 206064946 U CN206064946 U CN 206064946U
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- CN
- China
- Prior art keywords
- ectosphere
- pressure
- pressure value
- spherical pig
- ball
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- Withdrawn - After Issue
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Abstract
The utility model discloses a kind of spherical pig that can solve blockage problem, belongs to the prune job equipment technical field of oil-gas gathering and transferring pipeline.It includes the ectosphere by made by elastomeric material, the external diameter of the ectosphere is more than bore, for with pipe interference fit, ball in by made by elastomeric material is provided with the ectosphere, annular space is left between the ectosphere and interior ball, the ectosphere is provided with inflation inlet, reacting gas is filled in the annular space, fill in the interior ball for dissolving the liquid of the reacting gas, the interior ball is provided with pressure switch, pressure switch is provided with preset pressure value, pressure value of the preset pressure value more than pressed gas, the pressure switch is automatically opened up when pressure is more than or equal to preset pressure value, it is dissolved in liquid for the reacting gas, the pressure switch is automatically switched off when pressure is less than preset pressure value.It efficiently solves the problem of spherical pig blocking, with it is controllable, actively and it is safe the characteristics of.
Description
Technical field
This utility model belongs to the prune job equipment technical field of oil-gas gathering and transferring pipeline, is related to a kind of spherical pig.
Background technology
In oil-gas gathering and transportation industry, with the increase of use time, oil-gas gathering and transferring pipeline can accumulate increasing hydrops and
Other impurities, these hydrops and other impurities meeting etching apparatus, can also block pipeline, affect oil-gas gathering and transportation, need fortune when serious
Pigging operation is carried out with spherical pig, hydrops and other impurities are discharged.
At present, conventional spherical pig is to adopt material made by corrosion resistant neoprene, when which is run in the pipeline
Require with certain sealing, therefore ball external diameter is more than bore.Conventional spherical pig is divided to two kinds of hollow ball and medicine ball, DN
>The spherical pig of 100mm is hollow ball, can use medicine ball when caliber is less than 100mm.Conventional spherical pig be mainly used for remove
Hydrops and separate medium in pipe, when having block object in pipe, are easy for spherical pig blockage problem, and spherical pig blocking increases
Pigging operation risk, and follow-up de-plugging somewhat expensive.
Conventional solution is to apply pressed gas to pipeline side to promote spherical pig de-plugging, and then this method is present
Very big non-intellectual and passivity, it is unreliable, it is also dangerous.
Utility model content
The purpose of this utility model is to overcome the deficiencies in the prior art, there is provided a kind of pigging that can solve blockage problem
Ball.
What the purpose of this utility model was realized in：Including the ectosphere by made by elastomeric material, the external diameter of the ectosphere
More than bore, for pipe interference fit, ball in by made by elastomeric material, the ectosphere and interior ball are provided with the ectosphere
Between leave space, the ectosphere is provided with inflation inlet, and reacting gas is filled in the space between the ectosphere and interior ball, described
Fill in interior ball for dissolving the liquid of the reacting gas, the interior ball is provided with pressure switch, and pressure switch is provided with pre-
If pressure value, pressure value of the preset pressure value more than pressed gas, the pressure switch are more than or equal to preset pressure in pressure
Automatically open up during value, be dissolved in liquid for the reacting gas, the pressure switch is when pressure is less than preset pressure value
It is automatically switched off.
Preferably, the ectosphere and the magnitude of interference of pipe interference fit are the 2% of bore.
Preferably, the reacting gas is ammonia, and the liquid is distilled water.
Preferably, the ectosphere and interior ball adopt natural rubber one-shot forming.
As a result of above-mentioned technical proposal, this utility model has the advantages that：
1st, this utility model is by the preset pressure value in pressure switch, pressure of the preset pressure value more than pressed gas
Value, when spherical pig is blocked, locally builds the pressure, and pressure increase, pressure switch are beaten automatically when pressure is more than or equal to preset pressure value
Open, the liquid in interior ball is dissolved each other with the reacting gas in annular space so that the volume of annular space reduces, and then reduce outer
The size of ball, reaches the purpose for solving spherical pig blocking, reduces the risk of pigging operation, it also avoid the de-plugging of follow-up costliness
Expense, its have it is controllable, actively and it is safe the characteristics of；
2nd, in this utility model ectosphere and interior ball adopt natural rubber one-shot forming, with high tenacity, strong wearability and
Preferable sealing, and the effect of its displacement hydrops and impurity is more preferable；
3rd, this utility model simple structure, low cost, practical.
Description of the drawings
Fig. 1 is structural representation of the present utility model；
Fig. 2 is this utility model work flow schematic diagram.
Reference
In accompanying drawing, 1 is ectosphere, and 2 is interior ball, and 11 is inflation inlet, and 21 is pressure switch, and 3 is reacting gas, and 4 is liquid, 5
For pipe, 6 is tamper, and 7 is pressed gas.
Specific embodiment
Below in conjunction with the accompanying drawings embodiment of the present utility model is described in further detail.
Referring to Fig. 1-Fig. 2, a kind of embodiment of spherical pig, including ectosphere 1 by made by elastomeric material, in the ectosphere 1
Ball 2 in by made by elastomeric material is provided with, in the present embodiment, ectosphere 1 and interior ball 2 adopt natural rubber one-shot forming, described
Annular space is left between ectosphere 1 and interior ball 2, and the ectosphere 1 is provided with inflation inlet 11, reaction gas is filled in the annular space
Body 3, fills in the interior ball 2 for dissolving the liquid 4 of the reacting gas 3, in the present embodiment, and the reacting gas 3 is ammonia
Gas, the liquid 4 be distilled water, its free from admixture, it is possible to reduce the corrosion to equipment；The interior ball 2 is provided with pressure switch 21,
For controlling contact of the distilled water with ammonia, pressure switch 21 is provided with preset pressure value, and preset pressure value is more than for promoting
The pressure value of the pressed gas of spherical pig, the pressure switch 21 are automatically opened up when pressure is more than or equal to preset pressure value,
Ammonia is dissolved in distilled water, and the pressure switch 21 is automatically switched off when pressure is less than preset pressure value.Outside the ectosphere 1
Footpath is more than 5 internal diameter of pipe, for 5 interference fit of pipe, in the present embodiment, the ectosphere 1 is pipe with the magnitude of interference of 5 interference fit of pipe
The 2% of 5 internal diameters.The point become between ectosphere 1 and pipe 5 is contacted as linear contact lay, increases the contact area of ectosphere 1 and pipe 5, so as to increase
Ectosphere 1 and the friction of 5 inwall of pipe, further improve the effect of blowdown.
This utility model work flow：The preset pressure value in the pressure switch 21 of interior ball 2, ectosphere 1 and 5 interference fit of pipe
Into in pipe 5, sealing is formed, apply pressed gas 7 to the side of pipe 5 and promote spherical pig, occur when spherical pig runs into tamper 6
During blocking, spherical pig local builds the pressure, pressure increase, and when pressure is more than or equal to preset pressure value, pressure switch 21 is automatically opened up,
Distilled water dissolves ammonia, and 1 size of ectosphere diminishes, and realizes spherical pig de-plugging, and spherical pig reverts to normal movement, and pressure reduces, pressure
Power is less than preset pressure value, and pressure switch 21 is automatically switched off, and tamper 6 is pushed to pipe 5 in 5 interior continuation of pipe and exported by spherical pig.
Different preset pressure values can be formulated according to the different discharge pressures of different pipelines in practice, preset pressure value is more than pipeline (pressure
Strength body 7) pressure value, such as natural gas transportation pressure are 1.6MPa, and during pigging operation, pipeline (pressed gas 7) pressure is
0.6MPa, now formulate preset pressure be 0.8MPa, when spherical pig occur block when, spherical pig local build the pressure, pressure be more than or
Open equal to pressure switch during 0.8MPa 21, distilled water and ammonia are contacted, and spherical pig external diameter reduces, and realizes de-plugging, and spherical pig exists
Recover normal movement in pipe 5, pressure switch 21 is closed when pressure is less than 0.8MPa, continues to complete pigging operation, and for example natural gas
Discharge pressure is 2.4MPa, and during pigging operation, pipeline (pressed gas 7) pressure is 1.4MPa, now formulates preset pressure and is
1.6MPa, when pressure is more than or equal to 1.6MPa, pressure switch 21 is opened, and when pressure is less than 1.6MPa, pressure switch 21 is closed.
Finally illustrate, preferred embodiment above is only unrestricted to illustrate the technical solution of the utility model, to the greatest extent
Gutron is crossed above preferred embodiment and this utility model is described in detail, but those skilled in the art should manage
Solution, can make various changes, in the form and details without departing from this utility model claims institute to which
The scope of restriction.
Claims (4)
1. a kind of spherical pig, including the ectosphere by made by elastomeric material, the external diameter of the ectosphere is more than bore, for pipe mistake
It is full of cooperation, it is characterised in that：Ball in by made by elastomeric material is provided with the ectosphere, between the ectosphere and interior ball, sky is left
Between, the ectosphere is provided with inflation inlet, is filled with reacting gas, fills out in the interior ball in the space between the ectosphere and interior ball
Filled with for dissolving the liquid of the reacting gas, the interior ball is provided with pressure switch, and pressure switch is provided with preset pressure
Value, preset pressure value more than pressed gas pressure value, the pressure switch pressure be more than or equal to preset pressure value when from
Dynamic to open, for the reacting gas is dissolved in liquid, the pressure switch is automatic when pressure is less than preset pressure value
Close.
2. spherical pig according to claim 1, it is characterised in that：The ectosphere is interior for pipe with the magnitude of interference of pipe interference fit
The 2% of footpath.
3. spherical pig according to claim 1, it is characterised in that：The reacting gas is ammonia, and the liquid is distillation
Water.
4. spherical pig according to claim 1, it is characterised in that：The ectosphere and interior ball using natural rubber once into
Type.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621069956.8U CN206064946U (en) | 2016-09-21 | 2016-09-21 | A kind of spherical pig |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621069956.8U CN206064946U (en) | 2016-09-21 | 2016-09-21 | A kind of spherical pig |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206064946U true CN206064946U (en) | 2017-04-05 |
Family
ID=58439695
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621069956.8U Withdrawn - After Issue CN206064946U (en) | 2016-09-21 | 2016-09-21 | A kind of spherical pig |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206064946U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106238422A (en) * | 2016-09-21 | 2016-12-21 | 重庆科技学院 | A kind of spherical pig |
-
2016
- 2016-09-21 CN CN201621069956.8U patent/CN206064946U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106238422A (en) * | 2016-09-21 | 2016-12-21 | 重庆科技学院 | A kind of spherical pig |
| CN106238422B (en) * | 2016-09-21 | 2018-04-13 | 重庆科技学院 | A kind of spherical pig |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20170405 Effective date of abandoning: 20180413 |
|
| AV01 | Patent right actively abandoned |