CN204535285U - A kind of wiper for pipeline drying - Google Patents
A kind of wiper for pipeline drying Download PDFInfo
- Publication number
- CN204535285U CN204535285U CN201520046376.6U CN201520046376U CN204535285U CN 204535285 U CN204535285 U CN 204535285U CN 201520046376 U CN201520046376 U CN 201520046376U CN 204535285 U CN204535285 U CN 204535285U
- Authority
- CN
- China
- Prior art keywords
- axle
- wiper
- baffle plate
- leather cup
- 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 wiper for pipeline drying, comprise axle, axle periphery is provided with upper and lower two steps, the upper surface of step is provided with first leather cup up, a baffle plate is installed on first leather cup, be crimped with a nut on this baffle plate, this nut and spindle thread are socketed; The lower surface of below step is provided with second leather cup, and be provided with another baffle plate under this second leather cup, under this another baffle plate, apical grafting has another nut, and this another nut and spindle thread are socketed; Axle center along axle has the through hole of venturi tube structure, the trunnion place of Venturi tube is provided with step, is evenly distributed with multiple passage in the radial direction of step.The utility model service, receipts ball are easily, easy to operate, utilize Venturi effect can increase the fluid-carrying capability of dry air, realize the second time of foaming to Liquid Residue in pipeline, improve wiper drying operation efficiency.
Description
Technical field
The utility model belongs to mechanical equipment technical field, for the wiper of pipeline drying when particularly relating to newly-built pipeline pressure test draining, is specifically related to a kind of wiper for pipeline drying.
Background technology
The construction development of long distance pipeline is very fast in recent years, Long-distance Transmission Pipeline operation advance row pipeline pressure test is one of them important step, intensity and the air-tightness that pressure test (strength test and leak test) checks pipeline is carried out, to guarantee sealing and the reliability of pipeline as test medium by water or other suitable liquid.
Usually adopt the mode of pipeline pigging to be got rid of by the residue such as water, gas after the pressure testing of natural gas line use water, but this method still has the moisture film of 0.01 ~ 0.15mm to be attached to inner-walls of duct, and there is ponding in hypsography low-lying area.These residual moisture meeting corrosion pipelines, reduce the conveying capacity of pipeline, and therefore pipeline must carry out drying process to the residual water after pressure testing and saturated steam before formally coming into operation, and ensures with this operation that pipeline can be safe, long-term and stable.
Current Long-distance Transmission Pipeline drying pig often adopts leather cup type wiper, there is pipeline purging often, and removes not thorough, and increase dry purge time, pigging operation efficiency is lower.
Utility model content
The purpose of this utility model is to provide a kind of wiper for pipeline drying, solves in prior art and adopts leather cup type wiper, there is pipeline purging often, and removes not thorough, increases dry purge time, the problem that pigging operation efficiency is lower.
The technical scheme that the utility model adopts is, a kind of wiper for pipeline drying, comprise axle, axle periphery is provided with upper and lower two steps, the upper surface of step is provided with first leather cup up, be provided with a baffle plate on first leather cup, be crimped with a nut on this baffle plate, this nut and spindle thread are socketed; The lower surface of below step is provided with second leather cup, and be provided with another baffle plate under this second leather cup, under this another baffle plate, apical grafting has another nut, and this another nut and spindle thread are socketed;
Axle center along axle has the through hole of venturi tube structure, the trunnion place of Venturi tube is provided with step, is evenly distributed with multiple passage in the radial direction of step.
Wiper for pipeline drying of the present utility model, is further characterized in that:
Passage is 4 ~ 10.
The outlet of Venturi tube lower end is provided with check valve.
The beneficial effects of the utility model are:
1) mandrel interior of wiper adopts venturi tube structure, utilizes Venturi effect can improve carrying capacity to Liquid Residue; 2) wiper outlet is provided with check valve, avoids the anti-channeling of downstream; 3) high velocity air that wiper outlet is discharged can stir wiper gas downstream and Liquid Residue, realizes the second time of foaming of Liquid Residue, reduces Liquid Residue density, improve the drying efficiency of wiper; 4) effectively decrease the drying time of pipeline, drying effect is good; 5) wiper service, to receive ball easy, easy to operate, safe and reliable.
Accompanying drawing explanation
Fig. 1 is the wiper structural representation of the utility model for pipeline drying;
Fig. 2 is the A-A cross-sectional view in Fig. 1.
In figure, 1. axle, 2. leather cup, 3. baffle plate, 4. nut, 5. check valve, 6. pipeline, 7. passage.
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, the utility model is described in detail.
Upper-lower position wherein with accompanying drawing show for benchmark, actual installation position is by that analogy.
With reference to Fig. 1, Fig. 2, structure of the present utility model is, comprise axle 1, axle 1 periphery is provided with upper and lower two steps, the upper surface of step is provided with first leather cup 2 up, be provided with a baffle plate 3 on first leather cup 2, be crimped with a nut 4 on this baffle plate 3, this nut 4 is socketed with axle 1 screw thread; The lower surface of below step is provided with second leather cup 2, and be provided with a baffle plate 3 under this second leather cup 2, under this baffle plate 3, apical grafting has a nut 4, and this nut 4 is socketed with axle 1 screw thread; The inwall reliable contacts of two leather cup 2 peripheries and pipeline 6, plays the effect of closed conduit and airflow partition jointly; Axle center along axle 1 has the through hole of venturi tube structure, the trunnion place of Venturi tube is provided with step, be evenly distributed with multiple passage (preferably 4 ~ 10 passages) in the radial direction of step, in Venturi tube lower end, outlet is provided with check valve 5, to avoid the anti-channeling of air-flow.
Using method of the present utility model is,
Utilize pig traps to complete transmission and the receiving course of wiper, dry air sweeping method is adopted to the drying of pipeline.First with wiper dispensing device, wiper is sent in pipeline to be dried, now two leather cups 2 of wiper are fitted to be formed with pipeline 6 inwall and are sealed, and chimneying is cut off and is divided into upstream and catchment.Pass into pipeline 6 by by the dry air compressed, wiper moves forward under the pressure of air, progressively the drying operation of complete twin conduit.After dry air enters the upstream of pipeline 6, enter in the Venturi tube of axle 1, Venturi effect can be produced at the trunnion place of the Venturi tube of axle 1, pressure reduces and forms region of no pressure herein, similar vavuum pump is the same, Liquid Residue in tube wall sucks the inside of axle 1 by the passage 7 of trunnion place step, discharges subsequently from the port of export of axle 1.Because the dry air flow velocity of discharging from axle 1 port of export is very fast, the effect of blowing stirring is played to the gas of catchment and Liquid Residue, realizes the second time of foaming of Liquid Residue, reduce the density of Liquid Residue, strengthen drying effect.Meanwhile, check valve 5 can be avoided Liquid Residue to flow backwards and enter upstream.After pipeline drying, completed the reception of wiper by wiper receiving system.
A kind of wiper for pipeline drying when the utility model relates to newly-built pipeline pressure test draining, can reduce the purge time of pipeline dry air sweeping method, strengthens dry air to the adsorption capacity of pipe wall liquid film, improves wiper drying operation efficiency.
Claims (3)
1. the wiper for pipeline drying, it is characterized in that: comprise axle (1), axle (1) periphery is provided with upper and lower two steps, the upper surface of step is provided with first leather cup (2) up, a baffle plate (3) is installed on first leather cup (2), be crimped with a nut (4) on this baffle plate (3), this nut (4) and axle (1) screw thread are socketed; The lower surface of below step is provided with second leather cup (2), under this second leather cup (2), another baffle plate (3) is installed, under this another baffle plate (3), apical grafting has another nut (4), and this another nut (4) and axle (1) screw thread are socketed;
Axle center along axle (1) has the through hole of venturi tube structure, the trunnion place of Venturi tube is provided with step, is evenly distributed with multiple passage in the radial direction of step.
2. the wiper for pipeline drying according to claim 1, its feature is: described passage is 4 ~ 10.
3. the wiper for pipeline drying according to claim 1, its feature is: described Venturi tube lower end outlet is provided with check valve (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520046376.6U CN204535285U (en) | 2015-01-22 | 2015-01-22 | A kind of wiper for pipeline drying |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520046376.6U CN204535285U (en) | 2015-01-22 | 2015-01-22 | A kind of wiper for pipeline drying |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204535285U true CN204535285U (en) | 2015-08-05 |
Family
ID=53749277
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520046376.6U Expired - Fee Related CN204535285U (en) | 2015-01-22 | 2015-01-22 | A kind of wiper for pipeline drying |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204535285U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105937849A (en) * | 2016-07-16 | 2016-09-14 | 吴思 | Heating-area-adjustable special petroleum pipe inner wall drying mechanism |
| CN106196995A (en) * | 2016-07-16 | 2016-12-07 | 吴思 | A kind of can local flash baking tube inner wall drying plant |
| CN110449423A (en) * | 2018-05-07 | 2019-11-15 | 中国石油天然气集团有限公司 | Pipe cleaner for gas long distance pipeline |
| CN113090867A (en) * | 2020-01-09 | 2021-07-09 | 中国石油天然气股份有限公司 | Crude oil conveying pipeline pipe cleaning and gas stripping simulation equipment and method |
-
2015
- 2015-01-22 CN CN201520046376.6U patent/CN204535285U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105937849A (en) * | 2016-07-16 | 2016-09-14 | 吴思 | Heating-area-adjustable special petroleum pipe inner wall drying mechanism |
| CN106196995A (en) * | 2016-07-16 | 2016-12-07 | 吴思 | A kind of can local flash baking tube inner wall drying plant |
| CN106196995B (en) * | 2016-07-16 | 2018-08-24 | 黄锦山 | It is a kind of can local flash baking tube inner wall drying equipment |
| CN110449423A (en) * | 2018-05-07 | 2019-11-15 | 中国石油天然气集团有限公司 | Pipe cleaner for gas long distance pipeline |
| CN113090867A (en) * | 2020-01-09 | 2021-07-09 | 中国石油天然气股份有限公司 | Crude oil conveying pipeline pipe cleaning and gas stripping simulation equipment and method |
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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 |
Granted publication date: 20150805 Termination date: 20160122 |
|
| EXPY | Termination of patent right or utility model |