CN205824476U - A kind of gasbag-type pipeline plugging pig - Google Patents
A kind of gasbag-type pipeline plugging pig Download PDFInfo
- Publication number
- CN205824476U CN205824476U CN201620769861.0U CN201620769861U CN205824476U CN 205824476 U CN205824476 U CN 205824476U CN 201620769861 U CN201620769861 U CN 201620769861U CN 205824476 U CN205824476 U CN 205824476U
- Authority
- CN
- China
- Prior art keywords
- end cap
- utricule
- gasbag
- air bag
- type pipeline
- 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.)
- Expired - Fee Related
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Abstract
The utility model discloses a kind of gasbag-type pipeline plugging pig, including utricule, fetch and deliver gauge pipe, aeration control device, the two ends of described utricule are respectively arranged with the first end cap and the second end cap, it is equipped with retainer ring in described first end cap and the second end cap, air bag stationary rope it is provided with in described utricule, the two ends of described air bag stationary rope are separately fixed in described retainer ring, described first end cap is to close, described second end cap is provided with through hole and is connected with described gauge pipe of fetching and delivering, described in fetch and deliver gauge pipe and be connected with described aeration control device.This utility model solves the generation deformation of airbag aeration tailing edge duct orientation and causes problem little with inner-walls of duct side face extruding force, that sealing effectiveness is poor, is effectively improved air bag circumferential seal power, and improves convenience and the reliability that blanking plug uses.
Description
Technical field
This utility model belongs to a kind of high-tension blowout-prevention plugging device, more specifically a kind of gasbag-type pipeline plugging pig.
Background technology
Owing to process optimization, scrap build, corrosion pipeline are changed or the needs of REPAIR WELDING, oil gas field construction often needs
The oil and gas pipes used to be got angry.Before carrying out hot job industry, need a little to carry out blind plate isolation to getting angry, bivalve isolate and
The technique quarantine measures such as emptying, and pipeline of getting angry is carried out inerting, it is ensured that the reading of combustible gas LEL (LEL) should
It is 0%.In practice of construction, it is frequently encountered by position of getting angry near oil gas pressure vessel for water treatment, it is impossible to held by the pressure of big volume
Device is isolated away, it is necessary to pressure vessel is carried out the situation of inerting together, and this i.e. needs to grow very much the stopping production inerting time, again
Waste a large amount of nitrogen, there is also the hidden of the Residual oil burning fire that when pipeline cleaning the most thoroughly causes fire operation, inner-walls of duct sticks
Suffer from, affect work efficiency and oil gas field safety.
Air bag is sent to the blocking position specified, pressurising tailing edge duct orientation by conventional balloon formula pipeline plugging pig inconvenience
Deformation is big, little with inner-walls of duct side face extruding force, affects blanking plug sealing effectiveness.
Utility model content
The purpose of this utility model is to avoid deficiency of the prior art to provide a kind of gasbag-type pipeline plugging pig, makes
With convenient, good sealing effect, this utility model is achieved through the following technical solutions:
A kind of gasbag-type pipeline plugging pig, including utricule, fetches and delivers gauge pipe, aeration control device, the two ends of described utricule
It is respectively arranged with the first end cap and the second end cap, is equipped with retainer ring in described first end cap and the second end cap, in described utricule
Being provided with air bag stationary rope, the two ends of described air bag stationary rope are separately fixed in described retainer ring, described first end cap
Being to close, described second end cap is provided with through hole and is connected with described gauge pipe of fetching and delivering, described in fetch and deliver gauge pipe and described inflation
Control device to be connected.
Wherein, described first end cap and the second end cap are fixed by being arranged at the corrugated tubing at described utricule two ends, described capsule
The corrugated tubing at body two ends uses contrary thread rotary orientation.
Wherein, fetch and deliver described in be additionally provided with between gauge pipe and described aeration control device and fetch and deliver isolation needle-valve.
Wherein, described aeration control device includes Pressure gauge and the inflation isolation needle-valve being sequentially connected with.
Wherein, described utricule is provided with several sealing rings.
This utility model has an advantageous effect in that, by increasing air bag stationary rope, is possible to prevent utricule to inflate tailing edge
Duct orientation produces deformation, is effectively improved air bag circumferential seal power, increases air sac sealing effect, can efficiently solve tradition gas
The problem and shortage that bellows pipeline plugging pig exists, has the advantages such as convenient and reliable, good airproof performance.
Accompanying drawing explanation
The utility model is described in further detail to utilize accompanying drawing, but the embodiment in accompanying drawing is not constituted of the present utility model
Any restriction, for those of ordinary skill in the art, on the premise of not paying creative work, it is also possible to according to following attached
Figure obtains other accompanying drawing.
Fig. 1 is structural representation of the present utility model.
Detailed description of the invention
In order to make those skilled in the art be more fully understood that the technical solution of the utility model, below in conjunction with the accompanying drawings and tool
This utility model is described in further detail by body embodiment, it should be noted that in the case of not conflicting, the application's
Feature in embodiment and embodiment can be mutually combined.
As it is shown in figure 1, gasbag-type pipeline plugging pig described in the utility model, including utricule 1, fetch and deliver gauge pipe 6, inflation
Control device.The two ends of utricule 1 are respectively arranged with the first end cap 4 and the second end cap 5, are all provided with in the first end cap 4 and the second end cap 5
Having retainer ring 10, be provided with air bag stationary rope 2 in utricule 1, the two ends of air bag stationary rope 2 are separately fixed at retainer ring 10
On.First end cap 4 is to close, and the second end cap 5 is provided with through hole and is connected with fetching and delivering gauge pipe 6, fetches and delivers gauge pipe 6 and inflation control
Device processed is connected.Connected by adapter between all parts.
First end cap 4 and the second end cap 5 are fixed on the two of utricule 1 by being arranged at the NPT corrugated tubing 1a at utricule 1 two ends
End, the corrugated tubing 1a at utricule 1 two ends uses contrary thread rotary orientation, when such structure is possible to prevent to install air bag stationary rope
Rope turn-knob, affects stationary rope stress.Utricule 1 two ends and NPT corrugated tubing 1a use hard fire prevention PVC material, and utricule 1 uses
Soft fire prevention PVC material, selects fire proofing material that inner-walls of duct Residual oil can be stoped to be conducted by flame after thermal ignition.
Fetch and deliver to be additionally provided with between gauge pipe 6 and aeration control device and fetch and deliver isolation needle-valve 7, fetch and deliver isolation needle-valve 7 and have
Certain degree of hardness and amount of deflection, can not only be used for air bag and fetch and deliver instrument, again can be as air bag inflation/deflation passage, and its length is sent into according to air bag
Port and pipeline need the distance of blocking position to determine.
Aeration control device includes Pressure gauge 8 and the inflation isolation needle-valve 9 being sequentially connected with, after airbag aeration is qualified, logical
Gas overcharging isolation needle-valve 9 isolation inflation Nitrogen source gases, is changed by observation gasbag pressure and detection combustable gas concentration, Ke Yishi
Time monitoring the air bag effectiveness to seal for pipe joints.
Utricule 1 is provided with 3 sealing rings, so can further lift-off seal effect.
When using newly-designed gasbag-type pipeline plugging pig, first blanking plug is carried out pressure testing, check that blanking plug is pressurized to
Whether there is gas leak phenomenon after design pressure, check the deformation of utricule, secondly, by dismounting valve or cold work Pipe Cutting mode
Make suitable air bag and send into port, fetch and deliver part by air bag and the air bag after pressure release is delivered to the position that pipeline needs to block,
Then air bag is carried out pressurising, after being pressurized to operate pressure, isolate source of inflation gas, observe Pressure gauge numerical value the most stable, pressure
After table numerical stability, send into port at air bag and carry out fuel gas detection, after gas detecting is qualified, implement fire operation, operation
During, if finding, blanking plug Pressure gauge numerical value declines, and illustrating that blanking plug leaks nitrogen, must stopping hot job industry immediately, if entering
The dismounting of row small pipe line or change operation, the Pressure gauge size of blanking plug injection section is likely larger than internal diameter of the pipeline, need to be every
From fetching and delivering isolation needle-valve, disassemble blanking plug injection section, by change pipeline section removes and installs newly change pipeline (first dock,
Do not get angry welding) after, reinstall blanking plug injection section, observe blanking plug pressure, carry out fuel gas detection, be then carried out
The new weld job changing pipeline, after the end of job, takes out blanking plug pressure release, returns dress air bag and sends into the valve of port dismounting
Door.
Above description elaborates a lot of detail so that fully understanding this utility model, but, this practicality is new
Type can be implemented to use other to be different from other modes described here, it is thus impossible to be interpreted as protecting this utility model
Protect the restriction of scope.
In a word, although this utility model lists above-mentioned preferred implementation, but it should be mentioned that, although the skill of this area
Art personnel can carry out various change and remodeling, unless such change and remodeling deviate from scope of the present utility model, otherwise
Should be construed as being included in protection domain of the present utility model.
Claims (5)
1. a gasbag-type pipeline plugging pig, including utricule, fetches and delivers gauge pipe, aeration control device, it is characterised in that: described capsule
The two ends of body are respectively arranged with the first end cap and the second end cap, are equipped with retainer ring, institute in described first end cap and the second end cap
Being provided with air bag stationary rope in stating utricule, the two ends of described air bag stationary rope are separately fixed in described retainer ring, described
First end cap be close, described second end cap is provided with through hole and is connected with described gauge pipe of fetching and delivering, described in fetch and deliver gauge pipe and
Described aeration control device is connected.
Gasbag-type pipeline plugging pig the most according to claim 1, it is characterised in that: described first end cap and the second end cap lead to
The corrugated tubing crossing the two ends being arranged at described utricule is fixed, and the corrugated tubing at described utricule two ends uses contrary thread rotary orientation.
Gasbag-type pipeline plugging pig the most according to claim 1, it is characterised in that fetch and deliver gauge pipe and described inflation described in:
Control to be additionally provided with between device to fetch and deliver isolation needle-valve.
Gasbag-type pipeline plugging pig the most according to claim 1, it is characterised in that: described aeration control device includes successively
The Pressure gauge connected and inflation isolation needle-valve.
Gasbag-type pipeline plugging pig the most according to claim 1, it is characterised in that: it is provided with several on described utricule close
Seal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620769861.0U CN205824476U (en) | 2016-07-20 | 2016-07-20 | A kind of gasbag-type pipeline plugging pig |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620769861.0U CN205824476U (en) | 2016-07-20 | 2016-07-20 | A kind of gasbag-type pipeline plugging pig |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205824476U true CN205824476U (en) | 2016-12-21 |
Family
ID=57561393
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620769861.0U Expired - Fee Related CN205824476U (en) | 2016-07-20 | 2016-07-20 | A kind of gasbag-type pipeline plugging pig |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205824476U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI768775B (en) * | 2020-03-25 | 2022-06-21 | 日商日本黑田工業股份有限公司 | Bags for blocking devices |
-
2016
- 2016-07-20 CN CN201620769861.0U patent/CN205824476U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI768775B (en) * | 2020-03-25 | 2022-06-21 | 日商日本黑田工業股份有限公司 | Bags for blocking devices |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20161221 Termination date: 20190720 |