CN104633389A - Movable tube cleaner receiving and dispatching skid-mounted device - Google Patents
Movable tube cleaner receiving and dispatching skid-mounted device Download PDFInfo
- Publication number
- CN104633389A CN104633389A CN201510042440.8A CN201510042440A CN104633389A CN 104633389 A CN104633389 A CN 104633389A CN 201510042440 A CN201510042440 A CN 201510042440A CN 104633389 A CN104633389 A CN 104633389A
- Authority
- CN
- China
- Prior art keywords
- receiving
- transmitting
- skid
- cylindrical shell
- pigging
- 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.)
- Granted
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L55/00—Devices or appurtenances for use in, or in connection with, pipes or pipe systems
- F16L55/26—Pigs or moles, i.e. devices movable in a pipe or conduit with or without self-contained propulsion means
- F16L55/46—Launching or retrieval of pigs or moles
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L2101/00—Uses or applications of pigs or moles
- F16L2101/10—Treating the inside of pipes
- F16L2101/12—Cleaning
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- Cleaning In General (AREA)
Abstract
The invention specifically provides a movable tube cleaner receiving and dispatching skid-mounted device which comprise a skid body, a receiving and dispatching cylinder and a plurality of supports. A bolt fixedly connected with a strip-shaped foundation embedded in a station is arranged at the bottom of the skid body. One side of the receiving and dispatching cylinder is connected with a branch pipeline. The right end of the branch pipeline and the right end of the receiving and dispatching cylinder are connected through a first tube cleaning tee joint. The left end of the branch pipeline and the side wall of the left end of the receiving and dispatching cylinder are connected. The first tube cleaning tee joint is connected with an inlet flange connector. A second tube cleaning tee joint is installed in the middle of the branch pipeline and connected with an outlet flange connector. A sewage discharge outlet of the receiving and dispatching cylinder is connected with a sewage discharge flange connector through a sewage discharge pipeline. An emptying opening of the receiving and dispatching cylinder is connected with an emptying flange connector through an emptying pipeline. The movable tube cleaner receiving and dispatching skid-mounted device is simple and practical, and rapid installation and repeated utilization can be achieved; except for a tube cleaner receiving and dispatching function, the branch pipeline can be used as a conveying pipeline for the long conveying pipeline station for a long time, and the tube cleaning procedure and the production procedure are switched.
Description
Technical field
The invention belongs to transferring oil feed channel pigging technology field, be specifically related to a kind of moveable wiper transmitting-receiving skid-mounted unit.
Background technique
According to the planning of China National Petroleum Corporation (CNPC), PetroChina Company Limited. will strengthen the investment facility investment of Oil & Gas Storage and the dynamics of construction in " 12 " period, estimate pipe-line construction 50,000 km.Along with the construction of increasing oil and gas pipes, ensure to have built up that pipeline can be gone into operation on schedule smoothly, stable operation, before in-pipe inspection robot, operating pigging operation is even more important, and the process facility such as wiper receiving ball tube are one of indispensable visual plants in pigging operation.
According to current national situations, the prefabricated degree of pipe-line construction in-site installation is relatively low, does not substantially adopt skid-mounted unit, let alone engineering sledge dressization.Existing long distance pipeline the wiper transmitting-receiving facility major part of field of building a station for fixed, installation period is long, engineering work load is comparatively large, and one-time investment is high, and frequency of utilization is low, causes very large waste.Therefore, by wiper transceiver skidization and recycling will be the powerful means shortening completion time of project, minimizing installing engineering amount, the investment of reduction ground.
Chinese patent CN202411055U discloses a kind of skid-mounted pipeline cleaning receiving ball tube device, be made up of skid body, receiving ball tube, medium in-and-out pipe, blow-off line, blowdown piping, receiving ball tube connecting media in-and-out pipe, blow-off line, exhausting pipeline, receiving ball tube, medium in-and-out pipe, blow-off line is all fixed on again on prying body base.Medium in-and-out pipe end is provided with import and export ball valve; Blowdown piping is provided with ball valve, emptying ball valve, emptying ball valve and safety valve; Receiving ball tube is also provided with pressure gauge, pressure gauge and logical ball indicator; Two blow-off lines install Blowoff ball valve, Blowoff ball valve respectively.Although this patent have employed skid-mounted unit in pipe-line construction, only sledge need be put and carry out supervisor mouth into corresponding pipeline connecting end and connect and just can carry out work, avoid and carry out repeatedly carrying out installing, debugging when pigging works at pipeline diverse location; But the receiving ball tube device of this patent may need to arrange buttress, corresponding sledge seat basis needs field fabrication, and install comparatively complicated, the duration is relatively long; Meanwhile, the receiving ball tube device of this patent only has a branch road, only has pigging transmission and reception function, can not realize the switching between pigging flow process and production procedure, uses, have specific condition to limit as field, long distance pipeline station.
Summary of the invention
The object of the invention is to overcome existing pig traps to be fixedly installed and to be not easy to mobile, and pig traps only has a branch road can not realize the problem of the switching between pigging flow process and production procedure.
Technological scheme of the present invention there is provided a kind of moveable wiper transmitting-receiving skid-mounted unit, comprise skid body, transmitting-receiving cylindrical shell, and in skid body, support multiple supports of transmitting-receiving cylindrical shell, the bottom of described skid body is provided with the bolt be fixedly connected with interior pre-buried continuous footing of standing, described transmitting-receiving cylindrical shell side is connected with tap line, the right-hand member of described tap line is connected by pigging threeway one with the right-hand member end of transmitting-receiving cylindrical shell, the left end of tap line is connected with the left end sidewall of transmitting-receiving cylindrical shell, described pigging threeway one is connected with suction flange joint, the middle part of described tap line is provided with pigging threeway two, connection outlet flanged joint in pigging threeway two, the sewage draining exit place of described transmitting-receiving cylindrical shell connects blowdown flanged joint by blow-off line, the drain place of described transmitting-receiving cylindrical shell connects emptying flanged joint by exhausting pipeline.
The distance that the left end slipping of above-mentioned tap line supports the support of transmitting-receiving cylindrical shell is be greater than the tap line caliber of a times.
The pipeline at pigging threeway two two ends of above-mentioned tap line is respectively arranged with ball valve two and ball valve three.
Pigging threeway two place of above-mentioned tap line is provided with CONCENTRIC REDUCER.
Ball valve one is provided with between above-mentioned transmitting-receiving cylindrical shell right-hand member end and pigging threeway one.
Above-mentioned blow-off line is provided with Blowoff ball valve one and Blowoff ball valve two.
Above-mentioned exhausting pipeline is provided with emptying ball valve.
Above-mentioned transmitting-receiving cylindrical shell is provided with pressure gauge.
Above-mentioned continuous footing is rectangular, and its two ends are provided with the screw for fixing bolt.
Beneficial effect of the present invention:
(1) this moveable wiper transmitting-receiving skid-mounted unit provided by the invention is fixedly connected with continuous footing pre-buried in station by bolt, achieve the sledge dressization of pig traps, continuous footing can be prefabricated in advance simultaneously, and can reuse, simple material-saving, cost-saving.
(2) this moveable wiper transmitting-receiving skid-mounted unit provided by the invention is except possessing wiper transmission-receiving function, its tap line also can use as the delivery line of long distance pipeline station for a long time, the replacing if transmitting-receiving cylindrical shell has an accident, does not affect normal production procedure.
Below with reference to accompanying drawing, the present invention is described in further details.
Accompanying drawing explanation
Fig. 1 is the plan view of the present invention's moveable wiper transmitting-receiving skid-mounted unit.
Fig. 2 is the plan view of the present invention's moveable wiper transmitting-receiving skid-mounted unit.
Fig. 3 is the structural representation of continuous footing.
Description of reference numerals: 1, skid body; 2, cylindrical shell is received and dispatched; 3, support; 4, tap line; 5, pigging threeway one; 6, suction flange joint; 7, pigging threeway two; 8, outlet(discharge) flange joint; 9, blowdown flanged joint; 10, emptying flanged joint; 11, blow-off line; 12, exhausting pipeline; 13, bolt; 14, continuous footing; 15, CONCENTRIC REDUCER; 16, ball valve one; 17, ball valve two; 18, ball valve three; 19, Blowoff ball valve one; 20, Blowoff ball valve two; 21, emptying ball valve; 22, pressure gauge.
Embodiment
Embodiment 1:
In order to overcome existing pig traps be fixedly installed be not easy to mobile, and pig traps only has a branch road can not realize the problem of the switching between pigging flow process and production procedure, present embodiments provide a kind of as Fig. 1, moveable wiper transmitting-receiving skid-mounted unit shown in Fig. 2 and Fig. 3, comprise skid body 1, transmitting-receiving cylindrical shell 2, and in skid body 1, support multiple supports 3 of transmitting-receiving cylindrical shell 2, the bottom of described skid body 1 is provided with the bolt 13 be fixedly connected with interior pre-buried continuous footing 14 of standing, described transmitting-receiving cylindrical shell 2 side is connected with tap line 4, the right-hand member of described tap line 4 is connected by pigging threeway 1 with the right-hand member end of transmitting-receiving cylindrical shell 2, the left end of tap line 4 is connected with the left end sidewall of transmitting-receiving cylindrical shell 2, described pigging threeway 1 is connected with suction flange joint 6, the middle part of described tap line 4 is provided with pigging threeway 27, connection outlet flanged joint 8 in pigging threeway 27, the sewage draining exit place of described transmitting-receiving cylindrical shell 2 connects blowdown flanged joint 9 by blow-off line 11, the drain place of described transmitting-receiving cylindrical shell 2 connects emptying flanged joint 10 by exhausting pipeline 12.
Wherein, described continuous footing 14 is rectangular, and its two ends are provided with the screw for fixing bolt 13.
During use, in the continuous footing 14 pre-buried with mounting point in station by the bolt 13 bottom skid body 1, screw is corresponding fixing, and continuous footing 14 can be prefabricated in advance.When this device accepts skid-mounted unit use as wiper, suction flange joint 6 is connected with medium entrance pipeline with the media outlet pipeline in station respectively with outlet(discharge) flange joint 8; And when this device sends skid-mounted unit use as wiper, suction flange joint 6 is connected with media outlet pipeline with the medium entrance pipeline in station respectively with outlet(discharge) flange joint 8; Blowdown flanged joint 9 and emptying flanged joint 10 are connected with the drainage pipeline in station and blowdown system pipeline respectively.
After above-mentioned each pipeline has connected, in standing, medium is first punished as two-way through suction flange joint 6 in pigging threeway 1, one tunnel is through transmitting-receiving cylindrical shell 2, promote wiper motion in transmitting-receiving cylindrical shell 2, realize pigging operation, the drainage pipeline be connected with emptying flanged joint 10 by blowdown flanged joint 9 and blowdown system pipeline realize receiving and dispatching the blowdown in cylindrical shell 2 and emptying manipulation in pigging operation; Separately lead up to tap line 4, two-way eventually passes through outlet(discharge) flange joint 8 and enters station gut line.
This moveable wiper transmitting-receiving skid-mounted unit provided by the invention achieves the sledge dressization of pig traps, continuous footing can be prefabricated in advance simultaneously, and can reuse, simple material-saving, cost-saving, and receiving ball tube device disclosed in Chinese patent CN202411055U may need to arrange buttress, it needs field fabrication in matching used sledge seat basis in station, install comparatively complicated, the duration is relatively long.
In addition, this moveable wiper transmitting-receiving skid-mounted unit provided by the invention is except possessing wiper transmission-receiving function, its tap line also can use as the delivery line of long distance pipeline station for a long time, and the replacing if transmitting-receiving cylindrical shell has an accident, does not affect normal production procedure.Meanwhile, this moveable wiper transmitting-receiving skid-mounted unit can also be selected wherein send or receive skid-mounted unit, closing to reality according to actual needs, both reached Production requirement, and in turn saved cost, operability is simple, technological process is perfect, improves site technique operating security.
Term position described in the present embodiment, as the right-hand member of tap line 4, the right-hand member etc. of transmitting-receiving cylindrical shell 2 are all determined with orientation shown in the drawings, the concrete connection in reality is as the criterion with practical application.
Embodiment 2:
On the basis of embodiment 1, because the tap line 4 system stress analysis of wiper transmitting-receiving sledge is stress concentrated position, therefore, the left end slipping of described tap line 4 supports the distance of the support 3 of transmitting-receiving cylindrical shell 2 is be greater than tap line 4 caliber of a times.
The pipeline at pigging threeway 27 two ends of described tap line 4 is respectively arranged with ball valve 2 17 and ball valve 3 18, ball valve 1 is provided with between described transmitting-receiving cylindrical shell 2 right-hand member end and pigging threeway 1, described blow-off line 11 is provided with Blowoff ball valve 1 and Blowoff ball valve 2 20, described exhausting pipeline 12 is provided with emptying ball valve 21, described transmitting-receiving cylindrical shell 2 is provided with pressure gauge 22, controlled the opening and closing of pipeline by the ball valve on each pipeline, improve site technique operating security.
Pigging threeway 27 place of described tap line 4 is provided with CONCENTRIC REDUCER 15, for realizing the connection of different-diameter pipeline, expands Applicable scope.
May need to arrange buttress with receiving ball tube device disclosed in Chinese patent CN202411055U, its matching used sledge seat basis needs field fabrication, installs comparatively complicated, and the duration is relatively long Comparatively speaking, the basis that the present invention uses is continuous footing 14, as shown in Figure 3, continuous footing 14 is rectangular to its structure, and its two ends are provided with the screw for fixing bolt 13, this continuous footing 14 can be prefabricated in advance, and reusable, there is not secondary and use the problem of again mating, simple material-saving.
In sum, this moveable wiper transmitting-receiving skid-mounted unit provided by the invention is simple, practical, quick mounting and recycling can be realized, this device is except possessing wiper transmission-receiving function, its tap line also can use as the delivery line of long distance pipeline station for a long time, realizes the switching between pigging flow process and production procedure; Meanwhile, the site technique operating security of this device is high.
More than exemplifying is only illustrate of the present invention, does not form the restriction to protection scope of the present invention, everyly all belongs within protection scope of the present invention with the same or analogous design of the present invention.The parts that the present embodiment does not describe in detail and structure belong to the well-known components of the industry and common structure or conventional means, do not describe one by one here.
Claims (9)
1. a moveable wiper transmitting-receiving skid-mounted unit, comprise skid body (1), transmitting-receiving cylindrical shell (2), and at the upper multiple supports (3) supporting transmitting-receiving cylindrical shell (2) of skid body (1), it is characterized in that: the bottom of described skid body (1) is provided with the bolt (13) be fixedly connected with interior pre-buried continuous footing (14) of standing, described transmitting-receiving cylindrical shell (2) side is connected with tap line (4), the right-hand member of described tap line (4) is connected by pigging threeway one (5) with the right-hand member end of transmitting-receiving cylindrical shell (2), the left end of tap line (4) is connected with the left end sidewall of transmitting-receiving cylindrical shell (2), described pigging threeway one (5) is connected with suction flange joint (6), the middle part of described tap line (4) is provided with pigging threeway two (7), the upper connection outlet flanged joint (8) of pigging threeway two (7), the sewage draining exit place of described transmitting-receiving cylindrical shell (2) connects blowdown flanged joint (9) by blow-off line (11), the drain place of described transmitting-receiving cylindrical shell (2) connects emptying flanged joint (10) by exhausting pipeline (12).
2. wiper transmitting-receiving skid-mounted unit as claimed in claim 1 moveable, is characterized in that: the distance that the left end slipping of described tap line (4) supports the support (3) of transmitting-receiving cylindrical shell (2) is be greater than tap line (4) caliber of a times.
3. moveable wiper transmitting-receiving skid-mounted unit as claimed in claim 1, is characterized in that: the pipeline at pigging threeway two (7) two ends of described tap line (4) is respectively arranged with ball valve two (17) and ball valve three (18).
4. moveable wiper transmitting-receiving skid-mounted unit as claimed in claim 1, is characterized in that: pigging threeway two (7) place of described tap line (4) is provided with CONCENTRIC REDUCER (15).
5. moveable wiper transmitting-receiving skid-mounted unit as claimed in claim 1, is characterized in that: be provided with ball valve one (16) between described transmitting-receiving cylindrical shell (2) right-hand member end and pigging threeway one (5).
6. moveable wiper transmitting-receiving skid-mounted unit as claimed in claim 1, is characterized in that: described blow-off line (11) is provided with Blowoff ball valve one (19) and Blowoff ball valve two (20).
7. moveable wiper transmitting-receiving skid-mounted unit as claimed in claim 1, is characterized in that: described exhausting pipeline (12) is provided with emptying ball valve (21).
8. moveable wiper transmitting-receiving skid-mounted unit as claimed in claim 1, is characterized in that: described transmitting-receiving cylindrical shell (2) is provided with pressure gauge (22).
9. moveable wiper transmitting-receiving skid-mounted unit as claimed in claim 1, is characterized in that: described continuous footing (14) is rectangular, and its two ends are provided with the screw for fixing bolt (13).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510042440.8A CN104633389B (en) | 2015-01-28 | 2015-01-28 | A kind of movably wiper transmitting-receiving skid-mounted unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510042440.8A CN104633389B (en) | 2015-01-28 | 2015-01-28 | A kind of movably wiper transmitting-receiving skid-mounted unit |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104633389A true CN104633389A (en) | 2015-05-20 |
| CN104633389B CN104633389B (en) | 2016-09-14 |
Family
ID=53212453
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510042440.8A Active CN104633389B (en) | 2015-01-28 | 2015-01-28 | A kind of movably wiper transmitting-receiving skid-mounted unit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104633389B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104948136A (en) * | 2015-06-18 | 2015-09-30 | 西安长庆科技工程有限责任公司 | Gas production pipeline cleaning system based on large cluster type well group |
| CN105627031A (en) * | 2015-12-18 | 2016-06-01 | 中国石油大学(华东) | Automatic tube cleaner receiving device |
| CN106944428A (en) * | 2017-03-13 | 2017-07-14 | 辽宁石油化工大学 | Solenoid type wiper ball serving device |
| CN114029291A (en) * | 2021-11-05 | 2022-02-11 | 中国铁建重工集团股份有限公司 | Shield tunneling machine pipeline cleaning robot, shield tunneling machine and shield tunneling machine pipeline cleaning method |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1995012464A1 (en) * | 1992-05-08 | 1995-05-11 | Norsk Hydro A.S | Pig system for sending and receiving pigs in a pipeline system |
| WO1997039273A1 (en) * | 1996-04-16 | 1997-10-23 | Petroleo Brasileiro S.A. - Petrobras | Method and equipment for launching pigs into undersea pipes |
| JPH09287700A (en) * | 1996-04-22 | 1997-11-04 | Taisei Corp | Pig system for reception pipe line |
| CN2427711Y (en) * | 2000-06-20 | 2001-04-25 | 锡山市阀门厂 | Pipe cleaning emitting receiving valve |
| CN2900997Y (en) * | 2006-05-18 | 2007-05-16 | 北京华油天然气有限责任公司 | Gas transport pipeline cleaner receiving and delivering device |
| GB2438415A (en) * | 2006-05-24 | 2007-11-28 | Oliver Twinsafe Valves Ltd | A pig launcher or receiver device |
| CN202207685U (en) * | 2011-09-24 | 2012-05-02 | 王庆普 | High-efficient energy-saving oil-collecting ball receiving and delivering integrated device |
| CN202411055U (en) * | 2011-12-16 | 2012-09-05 | 湖北兴成石化设备有限公司 | Skid-mounted pipeline cleaning send-receive ball cylinder device |
| CN204512792U (en) * | 2015-01-28 | 2015-07-29 | 西安长庆科技工程有限责任公司 | A kind of moveable wiper transmitting-receiving skid-mounted unit |
-
2015
- 2015-01-28 CN CN201510042440.8A patent/CN104633389B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1995012464A1 (en) * | 1992-05-08 | 1995-05-11 | Norsk Hydro A.S | Pig system for sending and receiving pigs in a pipeline system |
| WO1997039273A1 (en) * | 1996-04-16 | 1997-10-23 | Petroleo Brasileiro S.A. - Petrobras | Method and equipment for launching pigs into undersea pipes |
| JPH09287700A (en) * | 1996-04-22 | 1997-11-04 | Taisei Corp | Pig system for reception pipe line |
| CN2427711Y (en) * | 2000-06-20 | 2001-04-25 | 锡山市阀门厂 | Pipe cleaning emitting receiving valve |
| CN2900997Y (en) * | 2006-05-18 | 2007-05-16 | 北京华油天然气有限责任公司 | Gas transport pipeline cleaner receiving and delivering device |
| GB2438415A (en) * | 2006-05-24 | 2007-11-28 | Oliver Twinsafe Valves Ltd | A pig launcher or receiver device |
| CN202207685U (en) * | 2011-09-24 | 2012-05-02 | 王庆普 | High-efficient energy-saving oil-collecting ball receiving and delivering integrated device |
| CN202411055U (en) * | 2011-12-16 | 2012-09-05 | 湖北兴成石化设备有限公司 | Skid-mounted pipeline cleaning send-receive ball cylinder device |
| CN204512792U (en) * | 2015-01-28 | 2015-07-29 | 西安长庆科技工程有限责任公司 | A kind of moveable wiper transmitting-receiving skid-mounted unit |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104948136A (en) * | 2015-06-18 | 2015-09-30 | 西安长庆科技工程有限责任公司 | Gas production pipeline cleaning system based on large cluster type well group |
| CN105627031A (en) * | 2015-12-18 | 2016-06-01 | 中国石油大学(华东) | Automatic tube cleaner receiving device |
| CN105627031B (en) * | 2015-12-18 | 2017-07-25 | 中国石油大学(华东) | A kind of wiper automatic receiving device |
| CN106944428A (en) * | 2017-03-13 | 2017-07-14 | 辽宁石油化工大学 | Solenoid type wiper ball serving device |
| CN114029291A (en) * | 2021-11-05 | 2022-02-11 | 中国铁建重工集团股份有限公司 | Shield tunneling machine pipeline cleaning robot, shield tunneling machine and shield tunneling machine pipeline cleaning method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104633389B (en) | 2016-09-14 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104633389A (en) | Movable tube cleaner receiving and dispatching skid-mounted device | |
| CN202133519U (en) | valve pressure test integrated device | |
| CN203490041U (en) | Pressure testing device of water transmission pipeline | |
| CN204512792U (en) | A kind of moveable wiper transmitting-receiving skid-mounted unit | |
| CN104727425A (en) | Traction-type non-excavation pipeline repairing method | |
| CN105586986A (en) | Urban underground intelligent comprehensive pipe rack quakeproof device | |
| CN202377244U (en) | Mechanical spherical pig checking device for long-distance oil and gas pipelines | |
| CN103672097A (en) | Valve assembly for holing in pipeline | |
| CN102507309B (en) | Heavy-caliber elbow pipe fitting water pressure test seal device | |
| CN102767643A (en) | Sectional laying and mounting method for long-distance pipeline in culvert | |
| CN201866451U (en) | Rapid water pipe connector | |
| CN103806604A (en) | Method for constructing siphon type hanging pipe rain water system | |
| CN215630515U (en) | Temporary protection structure for current situation cross pipeline in newly-built inspection well | |
| CN203140385U (en) | Spherical pig receiving device | |
| CN103278379B (en) | The special short tube of pressure testing and the using method in long-distance pipe pipe section pressure test thereof | |
| CN201787237U (en) | Non-socket cast iron drain-pipe connecting piece | |
| CN205348225U (en) | Prefabricated assembled underground pipe gallery | |
| CN107747321A (en) | Assembled steel system utility tunnel sewage conduit overhauls structure | |
| CN201201971Y (en) | Vacuum pumping nitrogen filling apparatus for cold-hot plate passage | |
| CN203248186U (en) | Multifunctional lifesaving tube for underground refuge chamber pipe shaft | |
| US20120049515A1 (en) | Boltless Pipe Joint Assembly | |
| CN101625054B (en) | Radial extrusion type joint | |
| CN220206791U (en) | Iron ore goaf ponding monitoring devices | |
| CN203176629U (en) | Pipe orifice online plugging device | |
| CN104056827A (en) | Spherical pig receiving device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |