CN201543627U - Double-caliber used tube cleaner - Google Patents
Double-caliber used tube cleaner Download PDFInfo
- Publication number
- CN201543627U CN201543627U CN2009201646152U CN200920164615U CN201543627U CN 201543627 U CN201543627 U CN 201543627U CN 2009201646152 U CN2009201646152 U CN 2009201646152U CN 200920164615 U CN200920164615 U CN 200920164615U CN 201543627 U CN201543627 U CN 201543627U
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- leather cup
- distortion
- installing hole
- leather
- pressing plate
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Abstract
The utility model relates to a device used for eliminating paraffins in an oil pipe, in particular to a double-caliber used pipe cleaner. The pipe cleaner comprises a supporting frame and a paraffin scraper, wherein no less than one paraffin scraper is fixedly arranged on the supporting frame; each paraffin scraper comprises a right petal-shaped deformation leather cup and a left petal-shaped deformation leather cup; the outer diameter of the right deformation leather cup is less than that of the left deformation leather cup; first openings are uniformly distributed on the outer end surface of the right deformation leather cup, and second openings are uniformly distributed on the outer end surface of the left deformation leather cup; installation openings are arranged in the middle of the right deformation leather cup and the left deformation leather cup; and the right deformation leather cup and the left deformation leather cup are arranged on the supporting frame by the installation openings. The pipe cleaner has reasonable and compact structure and convenient use, can be used for eliminating paraffins in the oil pipes with different calibers by staggering and stacking the two petal-shaped deformation leather cups and has the characteristics of strong deformability, good passing performance, toughness, bending property, wear resistance, compression resistance and durability and high repeated utilization factor, and is applicable to cleaning the long pipe.
Description
One, technical field
The utility model relates to the device of removing paraffin in the oil pipe, is a kind of two-tube footpath wiper.
Two, background technology
Normal oil pipeline is separated out in course of conveying and is condensed in tube wall owing to contain a large amount of paraffin in the crude oil medium of carrying, and as not removed, will have a strong impact on pipeline transmission capacity, even cause pipeline to scrap.Therefore, must regularly use wiper that the wax deposition of tube wall is cleared up.But when oil pipeline is made up of different reducing pipeline sections, because common wiper does not have enough reducing abilities, therefore can't in the oil pipe of reducing pipeline section, move.Because if adopt the wiper of pipe with small pipe diameter, though it can trouble-free operation in the pipeline section of pipe with small pipe diameter, will be because cascading water be too big in the pipeline of Large Diameter Pipeline, thus cause the wiper of pipe with small pipe diameter to lose the power of operation; If adopt the wiper of Large Diameter Pipeline, though its energy trouble-free operation in the pipeline section of Large Diameter Pipeline will because interference is too big, cause blocking hidden danger easily in the pipeline section of pipe with small pipe diameter.
Three, summary of the invention
The utility model provides a kind of two-tube footpath wiper, has overcome the deficiency of above-mentioned prior art, and it can effectively solve the problem that common wiper can't move in the reducing oil pipe.
The technical solution of the utility model realizes by following measures: a kind of Double-caliber used tube cleaner comprises bracing frame and paraffin scraper; Be installed with at bracing frame and be no less than one paraffin scraper, each paraffin scraper comprises and all is petal-like right distortion leather cup and left distortion leather cup, the external diameter of right distortion leather cup is less than the external diameter of left distortion leather cup, be evenly equipped with first opening in the outer face of right distortion leather cup, be evenly equipped with second opening in the outer face of left distortion leather cup, all there is installing port at middle part at right distortion leather cup and left distortion leather cup, right distortion leather cup and left distortion leather cup all are fixedly mounted on the bracing frame by installing port, right distortion leather cup and left distortion leather cup are fixedly installed togather from right-to-left, and first opening of right distortion leather cup and second opening of left distortion leather cup mutually stagger and make the outer face of right distortion leather cup and left distortion leather cup be closed.
Be further optimization and/or improvements below to above-mentioned utility model technical scheme:
Above-mentioned bracing frame can comprise cylindrical shell, right flanged plate and left flanged plate, the right-hand member of cylindrical shell and left end are fixed together with right flanged plate and left flanged plate respectively, on the right part of cylindrical shell and left part, be fixed with respectively right end cap and left end cap, on right end cap and left end cap, be evenly equipped with respectively installing hole, right distortion leather cup comprises the first right distortion leather cup and the second right distortion leather cup, and left distortion leather cup comprises the first left distortion leather cup and the second left distortion leather cup; Between the right-hand member of cylindrical shell and right end cap, the first right distortion leather cup and the first left distortion leather cup are arranged, between the left end of cylindrical shell and left end cap, the second right distortion leather cup and the second left distortion leather cup are arranged, at the first right distortion leather cup, the first left distortion leather cup, on the second right distortion leather cup and the second left distortion leather cup bolt mounting holes corresponding with installing hole arranged, the first right distortion leather cup and the first left distortion leather cup pass through installing hole, bolt mounting holes and bolt are fixedly mounted on the right part of cylindrical shell, and the second right distortion leather cup and the second left distortion leather cup pass through installing hole, bolt mounting holes and bolt are fixedly mounted on the left part of cylindrical shell.
Can be set with right straight leather cup on the cylindrical shell between the above-mentioned first left distortion leather cup and the right end cap, straight leather cup has straight leather cup installing hole on the right side, right straight leather cup is fixedly installed togather by installing hole, straight leather cup installing hole and bolt and the first right distortion leather cup, the first left distortion leather cup and right end cap, cylindrical shell on the first right distortion leather cup right side is set with right pressing plate, at right pressing plate the pressing plate installing hole is arranged, right pressing plate is fixedly installed together by pressing plate installing hole and the straight leather cup of bolt and the first right distortion leather cup, the first left distortion leather cup and the right side; On the cylindrical shell in the second left distortion leather cup left side, be set with left straight leather cup and left pressing plate from right-to-left, straight leather cup has straight leather cup installing hole on a left side, at left pressing plate the pressing plate installing hole is arranged, left straight leather cup and left pressing plate are fixedly installed togather by installing hole, straight leather cup installing hole, pressing plate installing hole and bolt and the second right distortion leather cup, the second left distortion leather cup and left end cap.
Can be set with the interval leather cup, support leather cup and left pressing plate from right-to-left on the cylindrical shell in straight leather cup left side, an above-mentioned left side, at the interval leather cup interval leather cup installing hole is arranged, supporting leather cup that the leather cup of support installing hole is arranged, interval leather cup, support leather cup and left pressing plate are fixedly installed togather by interval leather cup installing hole, support leather cup installing hole, pressing plate installing hole and bolt and the second right distortion leather cup, the second left distortion leather cup and left end cap.
Above-mentioned right distortion leather cup can comprise first mounting disc and the first paraffin cutting plectane, and the first paraffin cutting plectane is the skewed outside that is fixed on first mounting disc; Left side distortion leather cup comprises second mounting disc, supporting disk and the second paraffin cutting plectane, and supporting disk is the skewed outside that is fixed on second mounting disc, and the second paraffin cutting plectane is the skewed outside that is fixed on supporting disk.
The sharp angle of the axis vertical plane of the sharp angle of the outside conical surface of above-mentioned right distortion leather cup and the axis vertical plane of right distortion leather cup and the inboard conical surface of left distortion leather cup and left distortion leather cup is 32 ° to 38 °; The sharp angle of the middle part conical surface of left distortion leather cup and the axis vertical plane of left distortion leather cup is 22 ° to 28 °; The sharp angle of the outside conical surface of left distortion leather cup and the axis vertical plane of left distortion leather cup is 42 ° to 48 °
Above-mentioned right distortion leather cup and left distortion leather cup all can adopt polyurethane to make.
The shore hardness of above-mentioned right distortion leather cup and left distortion leather cup can be between 70 ° to 75 °.
The left end of above-mentioned cylindrical shell can be installed with the cross draw ring.
The utility model reasonable and compact in structure, easy to use, by adopt two to become petal-like distortion leather cup intersectings can carry out wax removal work by the oil pipe pipeline of different tube diameters together, have deformability strong, adapt to long-distance pipe pigging,, toughness good, folding endurance, wear-resistant, resistance to compression, durable, characteristics that recycling rate of waterused is high by performance.
Four, description of drawings
Accompanying drawing 1 is a perspective view of the present utility model.
Accompanying drawing 2 is a main TV structure schematic diagram of the present utility model.
Accompanying drawing 3 is that the A-A of accompanying drawing 2 is to the sectional structure schematic diagram.
Accompanying drawing 4 is the main TV structure schematic diagram of the right distortion leather cup of the utility model.
Accompanying drawing 5 is that the B-B of accompanying drawing 4 is to the sectional structure schematic diagram.
Accompanying drawing 6 is the left TV structure schematic diagram of accompanying drawing 4.
Accompanying drawing 7 is the main TV structure schematic diagram of the left distortion leather cup of the utility model.
Accompanying drawing 8 is that the C-C of accompanying drawing 7 is to the sectional structure schematic diagram.
Accompanying drawing 9 is the left TV structure schematic diagram of accompanying drawing 7.
Coding in the accompanying drawing is respectively: 1 is first opening, and 2 is second opening, and 3 is installing port, 4 is cylindrical shell, and 5 is right flanged plate, and 6 is left flanged plate, 7 is right end cap, and 8 is left end cap, and 9 is the first right distortion leather cup, 10 is the second right distortion leather cup, and 11 is the first left distortion leather cup, and 12 is the second left distortion leather cup, 13 is bolt mounting holes, 14 is bolt, and 15 is right straight leather cup, and 16 is right pressing plate, 17 is left straight leather cup, 18 is left pressing plate, and 19 is the cross draw ring, and 20 is first mounting disc, 21 is the first paraffin cutting plectane, 22 is second mounting disc, and 23 is supporting disk, and 24 is the second paraffin cutting plectane; A1 is the sharp angle of the axis vertical plane of the outside conical surface of right distortion leather cup and right distortion leather cup, a2 is the sharp angle of the axis vertical plane of the inboard conical surface of left distortion leather cup and left distortion leather cup, b1 is the sharp angle of the axis vertical plane of the middle part conical surface of left distortion leather cup and left distortion leather cup, and b2 is the sharp angle of the axis vertical plane of the outside conical surface of left distortion leather cup and left distortion leather cup.In the utility model, a left side is with respect to the left side in the accompanying drawing, and the right side is with respect to the right side in the accompanying drawing.
Five, the specific embodiment
The utility model is not subjected to the restriction of following embodiment, can determine concrete embodiment according to the technical solution of the utility model and actual conditions.
Below in conjunction with embodiment and accompanying drawing the utility model is further described:
As shown in Figure 1, this Double-caliber used tube cleaner comprises bracing frame and paraffin scraper; Be installed with at bracing frame and be no less than one paraffin scraper, each paraffin scraper comprises and all is petal-like right distortion leather cup and left distortion leather cup, the external diameter of right distortion leather cup is less than the external diameter of left distortion leather cup, be evenly equipped with first opening 1 in the outer face of right distortion leather cup, be evenly equipped with second opening 2 in the outer face of left distortion leather cup, all there is installing port 3 at middle part at right distortion leather cup and left distortion leather cup, right distortion leather cup and left distortion leather cup all are fixedly mounted on the bracing frame by installing port 3, right distortion leather cup and left distortion leather cup are fixedly installed togather from right-to-left, and first opening 1 of right distortion leather cup and second opening 2 of left distortion leather cup mutually stagger and make the outer face of right distortion leather cup and left distortion leather cup be closed.
Can according to actual needs, above-mentioned Double-caliber used tube cleaner be made further optimization and/or improvements:
Shown in accompanying drawing 1 to 9, bracing frame comprises cylindrical shell 4, right flanged plate 5 and left flanged plate 6, the right-hand member of cylindrical shell 4 and left end are fixed together with right flanged plate 5 and left flanged plate 6 respectively, on the right part of cylindrical shell 4 and left part, be fixed with respectively right end cap 7 and left end cap 8, on right end cap 7 and left end cap 8, be evenly equipped with respectively installing hole, right distortion leather cup comprises the first right distortion leather cup 9 and the second right distortion leather cup 10, and left distortion leather cup comprises the first left distortion leather cup 11 and the second left distortion leather cup 12; Between the right-hand member of cylindrical shell 4 and right end cap 7, the first right distortion leather cup 9 and the first left distortion leather cup 11 are arranged, between the left end of cylindrical shell 4 and left end cap 8, the second right distortion leather cup 10 and the second left distortion leather cup 12 are arranged, at the first right distortion leather cup 9, the first left distortion leather cup 11, on the second right distortion leather cup 10 and the second left distortion leather cup 12 bolt mounting holes corresponding with installing hole 13 arranged, the first right distortion leather cup 9 and the first left distortion leather cup 11 pass through installing hole, bolt mounting holes 13 and bolt 14 are fixedly mounted on the right part of cylindrical shell 4, and the second right distortion leather cup 10 and the second left distortion leather cup 12 pass through installing hole, bolt mounting holes 13 and bolt 14 are fixedly mounted on the left part of cylindrical shell 4.
Such as accompanying drawing 1,2, shown in 3, be set with right straight leather cup 15 on the cylindrical shell 4 between the first left distortion leather cup 11 and the right end cap 7, straight leather cup 15 has straight leather cup installing hole on the right side, right straight leather cup 15 passes through installing hole, straight leather cup installing hole and bolt 14 and the first right distortion leather cup 9, the first left distortion leather cup 11 and right end cap 7 are fixedly installed togather, cylindrical shell 4 on the first right distortion leather cup, 9 right sides is set with right pressing plate 16, at right pressing plate 16 the pressing plate installing hole is arranged, right pressing plate 16 is by pressing plate installing hole and bolt 14 and the first right distortion leather cup 9, the first left distortion leather cup 11 and right straight leather cup 15 are fixedly installed together; On the cylindrical shell 4 in the second left distortion leather cup, 12 left sides, be set with left straight leather cup 17 and left pressing plate 18 from right-to-left, straight leather cup 17 has straight leather cup installing hole on a left side, at left pressing plate 18 the pressing plate installing hole is arranged, left straight leather cup 17 and left pressing plate 18 are fixedly installed togather by installing hole, straight leather cup installing hole, pressing plate installing hole and bolt 14 and the second right distortion leather cup 10, the second left distortion leather cup 12 and left end cap 8.Like this, can effectively improve support performance.
As shown in Figure 1, be set with leather cup, support leather cup and left pressing plate 18 at interval from right-to-left on the cylindrical shell 4 in straight leather cup 17 left sides, a left side, leather cup installing hole is at interval arranged on the leather cup of interval, supporting that the leather cup of support installing hole is arranged on the leather cup, at interval leather cup, support leather cup and left pressing plate 18 by interval leather cup installing hole, support leather cup installing hole, pressing plate installing hole and bolt 14 and the second right distortion leather cup 10, second left side is out of shape leather cup 12 and left end cap 8 is fixedly installed togather.Like this, can improve support performance more effectively.
As shown in Figure 1, right distortion leather cup comprises that first mounting disc 20 and the first paraffin cutting plectane, 21, the first paraffin cutting plectanes 21 are the skewed outside that is fixed on first mounting disc 20; Left side distortion leather cup comprises second mounting disc 22, supporting disk 23 and the second paraffin cutting plectane 24, and supporting disk 23 is the skewed outside that is fixed on second mounting disc 22, and the second paraffin cutting plectane 24 is the skewed outside that is fixed on supporting disk 23.
Shown in accompanying drawing 5 and 9, the sharp angle a2 of the axis vertical plane of the sharp angle a1 of the outside conical surface of right distortion leather cup and the axis vertical plane of right distortion leather cup and the inboard conical surface of left distortion leather cup and left distortion leather cup is 32 ° to 38 °, the sharp angle b1 of the middle part conical surface of left distortion leather cup and the axis vertical plane of left distortion leather cup is 22 ° to 28 °, and the sharp angle b2 of the outside conical surface of left distortion leather cup and the axis vertical plane of left distortion leather cup is 42 ° to 48 °.
According to actual needs, right distortion leather cup and left distortion leather cup all adopt polyurethane to make, and the shore hardness of right distortion leather cup and left distortion leather cup is between 70 ° to 75 °.
Shown in accompanying drawing 1,2,3, for the ease of operation, the left end of cylindrical shell 4 is installed with cross draw ring 19, like this after the utility model moves to pipe end, by cross draw ring 19 the utility model is taken out from pipeline.
Above technical characterictic has consisted of most preferred embodiment of the present utility model, and it has stronger adaptability and best implementation result, can increase and decrease according to actual needs non-essential technical characterictic, satisfies the demand of different situations.
The use procedure of the utility model most preferred embodiment: at first the utility model is put into pipeline, utilize the pipeline pumped (conveying) medium to be power, it is mobile in pipeline to promote the utility model; When in the big pipeline of caliber, moving, be petal-like right distortion leather cup and left distortion leather cup and open because of left pressure, and right distortion leather cup and left distortion leather cup intersecting have prevented from opening the cascading water that causes because of leather cup, guarantee that the utility model normally moves; When entering the littler pipeline of caliber by reducing, there is bigger space between because of first opening 1 of right distortion leather cup, and also there is bigger space in second opening 2 of left distortion leather cup, enough amounts of contraction are arranged when being subjected to the tube wall extruding, therefore can not cause because the magnitude of interference is excessive blocking, thereby can normally move yet.
Claims (10)
1. a two-tube footpath wiper is characterized in that comprising bracing frame and paraffin scraper; On bracing frame, be installed with and be no less than one paraffin scraper, each paraffin scraper comprises that all being petal-like right distortion leather cup is out of shape leather cup with a left side, the external diameter of right distortion leather cup is less than the external diameter of left side distortion leather cup, on the outer face of right side distortion leather cup, be evenly equipped with first opening, on the outer face of left side distortion leather cup, be evenly equipped with second opening, all there is installing port at middle part at right side distortion leather cup and left side distortion leather cup, right distortion leather cup and left side distortion leather cup all are fixedly mounted on the bracing frame by installing port, right distortion leather cup and left side distortion leather cup are fixedly installed togather from right-to-left, and second opening of first opening of right distortion leather cup and left side distortion leather cup staggers mutually and makes the outer face of right distortion leather cup and left side distortion leather cup be closed.
2. Double-caliber used tube cleaner according to claim 1, it is characterized in that bracing frame comprises cylindrical shell, right flanged plate and left flanged plate, the right-hand member of cylindrical shell and left end are fixed together with right flanged plate and left flanged plate respectively, on the right part of cylindrical shell and left part, be fixed with respectively right end cap and left end cap, on right end cap and left end cap, be evenly equipped with respectively installing hole, right distortion leather cup comprises the first right distortion leather cup and the second right distortion leather cup, and left distortion leather cup comprises the first left distortion leather cup and the second left distortion leather cup; Between the right-hand member of cylindrical shell and right end cap, the first right distortion leather cup and the first left distortion leather cup are arranged, between the left end of cylindrical shell and left end cap, the second right distortion leather cup and the second left distortion leather cup are arranged, at the first right distortion leather cup, the first left distortion leather cup, on the second right distortion leather cup and the second left distortion leather cup bolt mounting holes corresponding with installing hole arranged, the first right distortion leather cup and the first left distortion leather cup pass through installing hole, bolt mounting holes and bolt are fixedly mounted on the right part of cylindrical shell, and the second right distortion leather cup and the second left distortion leather cup pass through installing hole, bolt mounting holes and bolt are fixedly mounted on the left part of cylindrical shell.
3. Double-caliber used tube cleaner according to claim 2, it is characterized in that being set with on the cylindrical shell between the first left distortion leather cup and the right end cap right straight leather cup, straight leather cup has straight leather cup installing hole on the right side, right straight leather cup passes through installing hole, straight leather cup installing hole and bolt and the first right distortion leather cup, the first left distortion leather cup and right end cap are fixedly installed togather, cylindrical shell on the first right distortion leather cup right side is set with right pressing plate, at right pressing plate the pressing plate installing hole is arranged, right pressing plate is by pressing plate installing hole and bolt and the first right distortion leather cup, the first left distortion leather cup and right straight leather cup are fixedly installed together; On the cylindrical shell in the second left distortion leather cup left side, be set with left straight leather cup and left pressing plate from right-to-left, straight leather cup has straight leather cup installing hole on a left side, at left pressing plate the pressing plate installing hole is arranged, left straight leather cup and left pressing plate are fixedly installed togather by installing hole, straight leather cup installing hole, pressing plate installing hole and bolt and the second right distortion leather cup, the second left distortion leather cup and left end cap.
4. Double-caliber used tube cleaner according to claim 3, it is characterized in that being set with the interval leather cup, supporting leather cup and left pressing plate from right-to-left on the cylindrical shell in left straight leather cup left side, at the interval leather cup interval leather cup installing hole is arranged, supporting leather cup that the leather cup of support installing hole is arranged, interval leather cup, support leather cup and left pressing plate are fixedly installed togather by interval leather cup installing hole, support leather cup installing hole, pressing plate installing hole and bolt and the second right distortion leather cup, the second left distortion leather cup and left end cap.
5. according to claim 1 or 2 or 3 or 4 described two-tube footpath wipers, it is characterized in that right distortion leather cup comprises first mounting disc and the first paraffin cutting plectane, the first paraffin cutting plectane is the skewed outside that is fixed on first mounting disc; Left side distortion leather cup comprises second mounting disc, supporting disk and the second paraffin cutting plectane, and supporting disk is the skewed outside that is fixed on second mounting disc, and the second paraffin cutting plectane is the skewed outside that is fixed on supporting disk.
6. Double-caliber used tube cleaner according to claim 5 is characterized in that the sharp angle of the axis vertical plane of the inboard conical surface of the sharp angle of axis vertical plane of the outside conical surface of right distortion leather cup and right distortion leather cup and left distortion leather cup and left distortion leather cup is 32 ° to 38 °; The sharp angle of the middle part conical surface of left distortion leather cup and the axis vertical plane of left distortion leather cup is 22 ° to 28 °; The sharp angle of the outside conical surface of left distortion leather cup and the axis vertical plane of left distortion leather cup is 42 ° to 48 °.
7. Double-caliber used tube cleaner according to claim 6 is characterized in that right distortion leather cup and left distortion leather cup all adopt polyurethane to make.
8. Double-caliber used tube cleaner according to claim 7, the shore hardness that it is characterized in that right distortion leather cup and left distortion leather cup is between 70 ° to 75 °.
9. according to claim 2 or 3 or 4 described two-tube footpath wipers, it is characterized in that the left end of cylindrical shell is installed with the cross draw ring.
10. two-tube footpath according to claim 8 wiper is characterized in that the left end of cylindrical shell is installed with the cross draw ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201646152U CN201543627U (en) | 2009-11-05 | 2009-11-05 | Double-caliber used tube cleaner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201646152U CN201543627U (en) | 2009-11-05 | 2009-11-05 | Double-caliber used tube cleaner |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201543627U true CN201543627U (en) | 2010-08-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009201646152U Expired - Lifetime CN201543627U (en) | 2009-11-05 | 2009-11-05 | Double-caliber used tube cleaner |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201543627U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104858189A (en) * | 2014-02-20 | 2015-08-26 | 中国石油天然气集团公司 | Variable diameter pig suitable for oil and gas transmission variable diameter pipelines and technology method |
| CN109985869A (en) * | 2019-04-28 | 2019-07-09 | 东软威特曼生物科技（沈阳）有限公司 | The cleaning method of reaction cup cleaning needle, reaction cup cleaning device and reaction cup |
| CN111306402A (en) * | 2020-04-07 | 2020-06-19 | 山东科技大学 | Reducing telescopic miniature pipeline cleaning device |
| CN112570396A (en) * | 2020-10-28 | 2021-03-30 | 中国民用航空飞行学院 | Natural gas line pigging robot |
-
2009
- 2009-11-05 CN CN2009201646152U patent/CN201543627U/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104858189A (en) * | 2014-02-20 | 2015-08-26 | 中国石油天然气集团公司 | Variable diameter pig suitable for oil and gas transmission variable diameter pipelines and technology method |
| CN104858189B (en) * | 2014-02-20 | 2017-05-24 | 中国石油天然气集团公司 | Variable diameter pig suitable for oil and gas transmission variable diameter pipelines and technology method |
| CN109985869A (en) * | 2019-04-28 | 2019-07-09 | 东软威特曼生物科技（沈阳）有限公司 | The cleaning method of reaction cup cleaning needle, reaction cup cleaning device and reaction cup |
| CN109985869B (en) * | 2019-04-28 | 2021-12-31 | 东软威特曼生物科技（沈阳）有限公司 | Reaction cup cleaning needle, reaction cup cleaning device and reaction cup cleaning method |
| CN111306402A (en) * | 2020-04-07 | 2020-06-19 | 山东科技大学 | Reducing telescopic miniature pipeline cleaning device |
| CN112570396A (en) * | 2020-10-28 | 2021-03-30 | 中国民用航空飞行学院 | Natural gas line pigging robot |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20100811 |