CN104373743A - Plate type hot melting welding coated joint plug for prefabricated directly-buried insulating pipeline system and plugging method - Google Patents
Plate type hot melting welding coated joint plug for prefabricated directly-buried insulating pipeline system and plugging method Download PDFInfo
- Publication number
- CN104373743A CN104373743A CN201410596330.1A CN201410596330A CN104373743A CN 104373743 A CN104373743 A CN 104373743A CN 201410596330 A CN201410596330 A CN 201410596330A CN 104373743 A CN104373743 A CN 104373743A
- Authority
- CN
- China
- Prior art keywords
- shutoff
- circular hole
- plunger
- repaired mouth
- plugging
- 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.)
- Pending
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
- F16L55/10—Means for stopping flow from or in pipes or hoses
- F16L55/11—Plugs
-
- 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
- F16L59/00—Thermal insulation in general
- F16L59/02—Shape or form of insulating materials, with or without coverings integral with the insulating materials
Abstract
The invention relates to a plate type hot melting welding coated joint plug for a prefabricated directly-buried insulating pipeline system and a plugging method. A connecting part of a pipeline joint needs on-site construction, due to the short construction time, natural cooling and other reasons, the on-site coated joint foaming and insulating quality of an outer protective pipe of an insulating pipe can not be improved after steel pipes of a pipeline are welded, the pipeline joint is poor in insulating effect, and the temperature of the pipeline lowers mainly because the coated joint foaming quality of the outer protective pipe is poor. The plug comprises a plugging round head (1) connected with a plugging plunger (2), a set of sealing reinforcing strips (3) is installed on the plugging plunger, and the plugging round head and the plugging plunger are each provided with a set of exhaust holes (4). The plate type hot melting welding joint coating plug is used for joint coating, foaming and plugging.
Description
technical field:
the present invention relates to the system board-like sweat soldering repaired mouth shutoff of a kind of prefabricated direct-buried thermal insulation pipe road and method for blocking.
background technique:
in prefabricated direct-buried thermal insulation pipe more than 30 years since the eighties introduces China, improve the thermal efficiency of Chinese central heat supply, saved mass energy.But along with a large amount of application, need construct at the scene in the attachment portion of pipe joint part, due to reasons such as the engineering time is urgent, natural temperature coolings, cause pipeline after steel-pipe welding, the outer pillar of thermal insulation pipe on-the-spot repaired mouth foamed heat insulating quality cannot promote, cause pipe joint place heat insulation effect low, outer pillar repaired mouth foaming quality is the main cause causing pipe temperature to decline.
summary of the invention:
the object of this invention is to provide the system board-like sweat soldering repaired mouth shutoff of a kind of prefabricated direct-buried thermal insulation pipe road and method for blocking.
above-mentioned object is realized by following technological scheme:
the shutoff of a kind of prefabricated direct-buried thermal insulation pipe road system board-like sweat soldering repaired mouth, its composition comprises: shutoff round end, described shutoff round end is connected with shutoff plunger, described shutoff plunger is provided with one group of sealing and reinforcing bar, described shutoff round end and described shutoff plunger all have one group of exhaust port.
described prefabricated direct-buried thermal insulation pipe road system board-like sweat soldering repaired mouth shutoff, described shutoff round end is frustoconic shape, upper-end surface diameter is less than lower end surface diameter, described shutoff plunger is cylindrical, upper-end surface diameter is greater than lower end surface diameter, the lower end surface of described shutoff round end is connected with the upper-end surface of described shutoff plunger, and one group of described sealing and reinforcing bar aperture is different, installs successively from described one end, shutoff its upper end face by aperture order from big to small.
the method for blocking of the prefabricated direct-buried thermal insulation pipe road system board-like sweat soldering repaired mouth shutoff described in utilization, during site operation, after the board-like repaired mouth welding of thermal insulation pipe, pass through opener, at the medium position on repaired mouth plate top, open the circular hole of two equal bores of mutual certain distance, the polyurethane-reinforcement labor and materials mixed in proportion inject in repaired mouth plate by one of them circular hole, another circular hole plays the effect of discharging air, after injecting the stabilizer of equivalent, use the shutoff being slightly greater than Circularhole diameter, by the mode of reinforcing, shutoff is bumped into circular hole, shutoff cannot be extractd, simultaneously, the air observing another circular hole discharges situation, to be foundly to discharge without air, when the oriented circular hole of polyurethane foam overflows, use another shutoff, same afterburning mode is adopted to be bumped in circular hole.
beneficial effect:
1. when the present invention constructs at the scene, after the board-like repaired mouth welding of thermal insulation pipe, pass through opener, at the medium position on repaired mouth plate top, open the circular hole of two equal bores of mutual certain distance, the polyurethane-reinforcement labor and materials mixed in proportion inject in repaired mouth plate by one of them circular hole, another circular hole plays the effect of discharging air, after injecting the stabilizer of equivalent, use the shutoff being slightly greater than Circularhole diameter, by the mode of reinforcing, shutoff is bumped into circular hole, shutoff cannot be extractd, simultaneously, the air observing another circular hole discharges situation, to be foundly to discharge without air, when the oriented circular hole of polyurethane foam overflows, use another shutoff, same afterburning mode is adopted to be bumped in circular hole, polyurethane in repaired mouth is under the effect of chemical reaction, continue foaming, when repaired mouth cannot be overflowed, expansion density constantly increases, treat that chemical reaction terminates, when foaming stops, define the polyurethane foamed thermal-insulating layer of the equal foaming quality with prefabricated direct-buried thermal insulation pipe, reach high-quality on-the-spot repaired mouth foamed heat insulating construction object and country's insulation standard-required.
2. the present invention can use on different size insulation pipe repaired mouth plate, adopt the principle of blocking, with the device of shutoff, after in the polyurethane foams of adding amount as calculated filling repaired mouth plate, enhance the seal in plate, thus enhance foaming intensity, achieve the repaired mouth heat insulation effect of NBS; The material of blocking device is that its external diameter slightly larger than hatch bore diameter, and has check device by plastics injection moulding once-through, fills in after in circular hole through external force, safe and reliable, very firmly.
accompanying drawing illustrates:
accompanying drawing 1 is structural representation of the present invention.
accompanying drawing 2 is left views of the present invention.
accompanying drawing 3 is B direction view of accompanying drawing 2.
accompanying drawing 4 is A direction view of accompanying drawing 2.
embodiment:
embodiment 1:
the shutoff of a kind of prefabricated direct-buried thermal insulation pipe road system board-like sweat soldering repaired mouth, its composition comprises: shutoff round end 1, described shutoff round end is connected with shutoff plunger 2, described shutoff plunger is provided with one group of sealing and reinforcing bar 3, described shutoff round end and described shutoff plunger all have one group of exhaust port 4.
embodiment 2:
prefabricated direct-buried thermal insulation pipe road system board-like sweat soldering repaired mouth shutoff according to embodiment 1, described shutoff round end is frustoconic shape, upper-end surface diameter is less than lower end surface diameter, described shutoff plunger is cylindrical, upper-end surface diameter is greater than lower end surface diameter, the lower end surface of described shutoff round end is connected with the upper-end surface of described shutoff plunger, and one group of described sealing and reinforcing bar aperture is different, installs successively from described one end, shutoff its upper end face by aperture order from big to small.
embodiment 3:
utilize the method for the prefabricated direct-buried thermal insulation pipe road system board-like sweat soldering repaired mouth shutoff shutoff described in embodiment 1 or 2, during site operation, after the board-like repaired mouth welding of thermal insulation pipe, pass through opener, at the medium position on repaired mouth plate top, open the circular hole of two equal bores of mutual certain distance, the polyurethane-reinforcement labor and materials mixed in proportion inject in repaired mouth plate by one of them circular hole, another circular hole plays the effect of discharging air, after injecting the stabilizer of equivalent, use the shutoff being slightly greater than Circularhole diameter, by the mode of reinforcing, shutoff is bumped into circular hole, shutoff cannot be extractd, simultaneously, the air observing another circular hole discharges situation, to be foundly to discharge without air, when the oriented circular hole of polyurethane foam overflows, use another shutoff, same afterburning mode is adopted to be bumped in circular hole.
Claims (3)
1. prefabricated direct-buried thermal insulation pipe road system board-like sweat soldering repaired mouth shutoff, its composition comprises: shutoff round end, it is characterized in that: described shutoff round end is connected with shutoff plunger, described shutoff plunger is provided with one group of sealing and reinforcing bar, described shutoff round end and described shutoff plunger all have one group of exhaust port.
2. prefabricated direct-buried thermal insulation pipe road system according to claim 1 board-like sweat soldering repaired mouth shutoff, it is characterized in that: described shutoff round end is frustoconic shape, upper-end surface diameter is less than lower end surface diameter, described shutoff plunger is cylindrical, upper-end surface diameter is greater than lower end surface diameter, the lower end surface of described shutoff round end is connected with the upper-end surface of described shutoff plunger, one group of described sealing and reinforcing bar aperture is different, installs successively from described one end, shutoff its upper end face by aperture order from big to small.
3. one kind utilizes the method for blocking of the prefabricated direct-buried thermal insulation pipe road system board-like sweat soldering repaired mouth shutoff described in claim 1 or 2, it is characterized in that: during site operation, after the board-like repaired mouth welding of thermal insulation pipe, pass through opener, at the medium position on repaired mouth plate top, open the circular hole of two equal bores of mutual certain distance, the polyurethane-reinforcement labor and materials mixed in proportion inject in repaired mouth plate by one of them circular hole, another circular hole plays the effect of discharging air, after injecting the stabilizer of equivalent, use the shutoff being slightly greater than Circularhole diameter, by the mode of reinforcing, shutoff is bumped into circular hole, shutoff cannot be extractd, simultaneously, the air observing another circular hole discharges situation, to be foundly to discharge without air, when the oriented circular hole of polyurethane foam overflows, use another shutoff, same afterburning mode is adopted to be bumped in circular hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410596330.1A CN104373743A (en) | 2014-10-31 | 2014-10-31 | Plate type hot melting welding coated joint plug for prefabricated directly-buried insulating pipeline system and plugging method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410596330.1A CN104373743A (en) | 2014-10-31 | 2014-10-31 | Plate type hot melting welding coated joint plug for prefabricated directly-buried insulating pipeline system and plugging method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104373743A true CN104373743A (en) | 2015-02-25 |
Family
ID=52552824
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410596330.1A Pending CN104373743A (en) | 2014-10-31 | 2014-10-31 | Plate type hot melting welding coated joint plug for prefabricated directly-buried insulating pipeline system and plugging method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104373743A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108506641A (en) * | 2018-04-04 | 2018-09-07 | 山西省工业设备安装集团有限公司 | A kind of installation method of prefabricated direct-buried thermal insulation pipe road system repaired mouth holder |
| CN112361127A (en) * | 2020-10-26 | 2021-02-12 | 中投(天津)智能管道股份有限公司 | On-site joint coating process for directly-buried heat-insulating pipeline |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR1135926A (en) * | 1954-09-02 | 1957-05-06 | Bayer Ag | Floating bodies in foamy polyurethane materials |
| DE3110503A1 (en) * | 1981-03-18 | 1982-10-07 | Kabel- und Metallwerke Gutehoffnungshütte AG, 3000 Hannover | Process for producing a joint for heat-insulated conduit pipes |
| CN201844159U (en) * | 2010-10-19 | 2011-05-25 | 齐克先 | Foaming blocking cover of polyurethane foaming heat insulating pipe |
| KR20110075646A (en) * | 2009-12-28 | 2011-07-06 | 주식회사 한국피이엠 | Plug for connecting pre-insulated pipe and connection method for pre-insulated pipe using it |
| CN201944490U (en) * | 2011-02-18 | 2011-08-24 | 唐山兴邦管道工程设备有限公司 | Novel support-free direct-buried heat insulating pipe |
| CN202252630U (en) * | 2011-10-13 | 2012-05-30 | 天津世纪天源地热环保工程有限公司 | Heat insulating pipe for conveying hot fluid |
| CN104019323A (en) * | 2014-06-11 | 2014-09-03 | 国家电网公司 | Pressure-resistant duct plug for duct in cable duct bank |
| CN204176238U (en) * | 2014-10-31 | 2015-02-25 | 哈尔滨朗格斯特节能科技有限公司 | Prefabricated direct-buried thermal insulation pipe road system board-like sweat soldering repaired mouth shutoff blocking cap |
-
2014
- 2014-10-31 CN CN201410596330.1A patent/CN104373743A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR1135926A (en) * | 1954-09-02 | 1957-05-06 | Bayer Ag | Floating bodies in foamy polyurethane materials |
| DE3110503A1 (en) * | 1981-03-18 | 1982-10-07 | Kabel- und Metallwerke Gutehoffnungshütte AG, 3000 Hannover | Process for producing a joint for heat-insulated conduit pipes |
| KR20110075646A (en) * | 2009-12-28 | 2011-07-06 | 주식회사 한국피이엠 | Plug for connecting pre-insulated pipe and connection method for pre-insulated pipe using it |
| CN201844159U (en) * | 2010-10-19 | 2011-05-25 | 齐克先 | Foaming blocking cover of polyurethane foaming heat insulating pipe |
| CN201944490U (en) * | 2011-02-18 | 2011-08-24 | 唐山兴邦管道工程设备有限公司 | Novel support-free direct-buried heat insulating pipe |
| CN202252630U (en) * | 2011-10-13 | 2012-05-30 | 天津世纪天源地热环保工程有限公司 | Heat insulating pipe for conveying hot fluid |
| CN104019323A (en) * | 2014-06-11 | 2014-09-03 | 国家电网公司 | Pressure-resistant duct plug for duct in cable duct bank |
| CN204176238U (en) * | 2014-10-31 | 2015-02-25 | 哈尔滨朗格斯特节能科技有限公司 | Prefabricated direct-buried thermal insulation pipe road system board-like sweat soldering repaired mouth shutoff blocking cap |
Non-Patent Citations (1)
| Title |
|---|
| 姜俊荣: "大口径钢制管道玻璃钢外护层泡沫保温结构补口技术", 《石油工程建设》 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108506641A (en) * | 2018-04-04 | 2018-09-07 | 山西省工业设备安装集团有限公司 | A kind of installation method of prefabricated direct-buried thermal insulation pipe road system repaired mouth holder |
| CN112361127A (en) * | 2020-10-26 | 2021-02-12 | 中投(天津)智能管道股份有限公司 | On-site joint coating process for directly-buried heat-insulating pipeline |
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| C06 | Publication | ||
| PB01 | Publication | ||
| EXSB | Decision made by sipo to initiate substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20150225 |