CN201803021U - Combustion gas underground inlet pipe - Google Patents
Combustion gas underground inlet pipe Download PDFInfo
- Publication number
- CN201803021U CN201803021U CN2010205218611U CN201020521861U CN201803021U CN 201803021 U CN201803021 U CN 201803021U CN 2010205218611 U CN2010205218611 U CN 2010205218611U CN 201020521861 U CN201020521861 U CN 201020521861U CN 201803021 U CN201803021 U CN 201803021U
- Authority
- CN
- China
- Prior art keywords
- joint
- pipe
- nut
- combustion gas
- inlet tube
- 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 - Lifetime
Links
- 239000000567 combustion gas Substances 0.000 title claims abstract description 42
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 52
- 239000010959 steel Substances 0.000 claims abstract description 52
- 239000007789 gas Substances 0.000 claims abstract description 41
- 239000004698 Polyethylene Substances 0.000 claims abstract description 30
- -1 polyethylene Polymers 0.000 claims abstract description 30
- 229920000573 polyethylene Polymers 0.000 claims abstract description 30
- 238000007789 sealing Methods 0.000 claims abstract description 7
- 239000011248 coating agent Substances 0.000 claims description 8
- 238000000576 coating method Methods 0.000 claims description 8
- 238000005260 corrosion Methods 0.000 claims description 6
- 230000007797 corrosion Effects 0.000 claims description 6
- 239000002775 capsule Substances 0.000 claims description 5
- 229920003023 plastic Polymers 0.000 abstract description 3
- 239000004033 plastic Substances 0.000 abstract description 3
- 230000008878 coupling Effects 0.000 abstract 2
- 238000010168 coupling process Methods 0.000 abstract 2
- 238000005859 coupling reaction Methods 0.000 abstract 2
- 230000037431 insertion Effects 0.000 abstract 2
- 238000003780 insertion Methods 0.000 abstract 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 20
- 238000012423 maintenance Methods 0.000 description 13
- 238000009413 insulation Methods 0.000 description 12
- 239000000463 material Substances 0.000 description 12
- 229910052742 iron Inorganic materials 0.000 description 10
- 238000006073 displacement reaction Methods 0.000 description 5
- 239000004593 Epoxy Substances 0.000 description 3
- 230000000295 complement effect Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 229920000728 polyester Polymers 0.000 description 3
- 229920001971 elastomer Polymers 0.000 description 2
- JEGUKCSWCFPDGT-UHFFFAOYSA-N h2o hydrate Chemical compound O.O JEGUKCSWCFPDGT-UHFFFAOYSA-N 0.000 description 2
- 230000002035 prolonged effect Effects 0.000 description 2
- 239000005060 rubber Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 229920000459 Nitrile rubber Polymers 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
Images
Landscapes
- Protection Of Pipes Against Damage, Friction, And Corrosion (AREA)
Abstract
The utility model discloses a combustion gas underground inlet pipe, which is used for connecting to an overground vertical pipe and a gas source pipe, and comprises a sleeve connected to the overground vertical pipe, a double insertion bent pipe connected to the sleeve, a polyethylene pipe, a steel pipe and a tee joint with cover. The utility model is characterized in that one end of the double insertion bent pipe is connected to the polyethylene pipe through a steel plastic crossover coupling; the other end of the polyethylene pipe is connected to one end of the steel pipe through the steel plastic crossover coupling; the other end of the steel pipe is connected to the gas source pipe through the tee joint with cover. The utility model has advantages of possessing long service life and good sealing; effectively preventing the combustion gas pipeline from leakage.
Description
Technical field
The utility model relates to the gas transmission and distribution field, relates in particular to the underground inlet tube of a kind of combustion gas.
Background technique
Along with popularizing of combustion gas user, Urban Buried Pipeline Network is huge day by day, and thing followed pipe network operation safety, user's usefulness gas safety problem become the most important thing of gas industry gradually.
Referring to Fig. 1, the underground inlet tube of the combustion gas of prior art comprises two sleeves 101 and 102, the slotting bend pipe 103 of a pair of, an insulation tube 104 and the slotting bend pipe 105 of a pair of;
Described sleeve 101 is used for connecting ground upper riser 106 and described two slotting bend pipe 103, and an end of this sleeve 101 is connected with described ground upper riser 106, and the other end of this sleeve 101 is connected with an end of described two slotting bend pipes 103;
Described sleeve 102 is used to connect described two slotting bend pipe 103 and described insulation tube 104, and an end of this sleeve 102 is connected with the other end of described two slotting bend pipes 103, and the other end of this sleeve 102 is connected with an end of described insulation tube 104;
Described two slotting bend pipe 105 is used to connect described insulation tube 104 gentle source capsules 107, and an end of the slotting bend pipe 105 of this pair is connected with the other end of described insulation tube 104, and the other end of the slotting bend pipe 105 of this pair is connected with described source of the gas pipe 107;
In the prior art, described insulation tube 104 and two slotting bend pipe 105 all adopt galvanized iron (being commonly called as galvanized iron) material to make.
There is following shortcoming in the underground inlet tube of the combustion gas of prior art:
(1) because the galvanized iron material corrosion resistance is poor, the working life of described insulation tube 104 and two slotting bend pipes 105 is short, and therefore, the underground inlet tube maintenance period of the combustion gas of prior art is short, and this means needs a large amount of human and material resources and financial resources to carry out maintenance and repair work;
(2) because Placement and described two slotting bend pipe 105 of described insulation tube 104 and described two slotting bend pipes 105 all are that a mouth is connected with the Placement of described source of the gas pipe 107, poor sealing performance, phenomenon easily leaks air;
(3) when the geology condition changes (as land subsidence), described insulation tube 104 and two slotting bend pipes 105 are easy to generate displacement under the effect of extraneous power, even break, and are displacements or break and all very easily produce gas leakage.
The model utility content
The purpose of this utility model is to provide a kind of combustion gas underground inlet tube, long service life, and good seal performance can effectively prevent gas pipeline gas leakage.
To achieve the above object, the utility model provides a kind of combustion gas underground inlet tube, be used for connecting the gentle source capsule of ground upper riser, comprise that the sleeve, the two slotting bend pipe that is connected with described sleeve, a polyethylene pipe, the steel pipe and that connect described ground upper riser have the headkerchief threeway; One end of described two slotting bend pipes is moulded crossover sub by a steel and is connected with an end of described polyethylene pipe; The other end of described polyethylene pipe is moulded crossover sub by a steel and is connected with an end of described steel pipe; The other end of described steel pipe has the headkerchief threeway to be connected with described source of the gas pipe by described.
The underground inlet tube of above-mentioned combustion gas, wherein, described steel is moulded crossover sub and is comprised tubular configured joint body and joint lining core; Described joint lining core is arranged in the described tubular configured joint body, and an end of this joint lining core is connected with the inwall of described tubular configured joint body; Described joint lining core is a tubulose, and the external diameter of this joint lining core is slightly larger than the internal diameter of described polyethylene pipe, and the outer wall of described joint lining core is to the distance of the inwall of the described tubular configured joint body thickness less than described polyethylene pipe tube wall.
The underground inlet tube of above-mentioned combustion gas, wherein, described have the headkerchief threeway to comprise sleeve body, first nut, second nut and the 3rd nut; Described sleeve body is a tubular structure, and this sleeve body is provided with first joint, second joint and the 3rd joint; Described first nut, second nut and the 3rd nut are enclosed within respectively on described first joint, second joint and the 3rd joint, and described first nut, second nut and the 3rd nut are used with described first joint, second joint and the 3rd joint respectively; Described second joint is connected with described source of the gas pipe, and described the 3rd joint is connected with described steel pipe; Described first nut is the nut of end sealing.
The underground inlet tube of above-mentioned combustion gas, wherein, described first joint and second joint are positioned on the straight line, and described the 3rd joint is vertical with described first joint and second joint.
The underground inlet tube of above-mentioned combustion gas, wherein, an end of described first joint is provided with seal ring and resistance to plucking circle, and described seal ring is arranged on the inwall of described first joint, and described resistance to plucking circle is arranged on the end face of described first joint.
The underground inlet tube of above-mentioned combustion gas, wherein, the inwall of described second joint, one end is provided with seal ring.
The underground inlet tube of above-mentioned combustion gas, wherein, an end of described the 3rd joint is provided with seal ring and resistance to plucking circle, and described seal ring is arranged on the inwall of described the 3rd joint, and described resistance to plucking circle is arranged on the end face of described the 3rd joint.
The underground inlet tube of above-mentioned combustion gas, wherein, described sleeve, two slotting bend pipe, steel pipe and have the surface of headkerchief threeway to be coated with corrosion-resistant coating.
The underground inlet tube of combustion gas of the present utility model adopts polyethylene pipe to replace the insulation tube of galvanized iron material, and polyethylene pipe is not perishable, and long service life has prolonged the maintenance period of gas pipeline, has reduced the gas pipeline maintenance cost;
The underground inlet tube of combustion gas of the present utility model adopts has the headkerchief threeway to connect the gentle source capsule of steel pipe, and good seal performance can effectively prevent gas leakage; Owing to there is the headkerchief threeway to be easy to keep balance, when the geology condition changes, there is the headkerchief threeway to be difficult for producing displacement, therefore, the underground inlet tube of combustion gas of the present utility model can effectively prevent the steel pipe fracture; The long service life of two slotting bend pipes that make than galvanized iron material the working life that the headkerchief threeway is arranged that steel is made, can prolong gas pipeline maintenance period, reduce the gas pipeline maintenance cost;
When having water-water reactor to amass in the source of the gas pipe, can utilize the joint that is not used in other pipelines of connection in the headkerchief threeway to take the interior water of source of the gas pipe away, help the maintenance of source of the gas pipe.
Description of drawings
The underground inlet tube of combustion gas of the present utility model is provided by following embodiment and accompanying drawing.
Fig. 1 is the structural representation of the underground inlet tube of combustion gas of prior art.
Fig. 2 is the structural representation of the underground inlet tube of combustion gas of the present utility model.
Fig. 3 is the sectional view that steel is moulded crossover sub in the utility model.
Fig. 4 is that steel is moulded the schematic representation that crossover sub is connected with steel pipe bend pipe and polyethylene pipe in the utility model.
Fig. 5 is the structural representation that the headkerchief threeway is arranged in the utility model.
Fig. 6 is the sectional view that the headkerchief threeway is arranged in the utility model.
Embodiment
Below with reference to Fig. 2～Fig. 6 the underground inlet tube of combustion gas of the present utility model is described in further detail.
Referring to Fig. 2, the underground inlet tube of combustion gas of the present utility model comprises that a sleeve 200, a pair of insert bend pipe 300, two steel and mould crossover sub 400, a polyethylene pipe 500, a steel pipe 600 and headkerchief threeway 700 is arranged;
Described sleeve 200 is used for connecting ground upper riser 105 and described two slotting bend pipe 300, and an end of this sleeve 200 is connected with described ground upper riser 105, and the other end of this sleeve 200 is connected with an end of described two slotting bend pipes 300;
The other end of described two slotting bend pipes 300 is moulded crossover sub 400 by described steel and is connected with an end of described polyethylene pipe 500;
The other end of described polyethylene pipe 500 is moulded crossover sub 400 by described steel and is connected with an end of described steel pipe 600;
The other end of described steel pipe 600 has headkerchief threeway 700 to be connected with source of the gas pipe 106 by described.
The underground inlet tube of combustion gas of the present utility model adopts polyethylene pipe to replace the insulation tube of galvanized iron material, polyethylene pipe is not perishable, (can reach 50 years the working life of polyethylene pipe to long service life, and be 15 years the working life of the insulation tube of galvanized iron material), prolong the maintenance period of gas pipeline, reduced the gas pipeline maintenance cost;
The underground inlet tube of combustion gas of the present utility model adopts the two slotting bend pipe that has the headkerchief threeway to replace the galvanized iron material, working life, the sealability of headkerchief threeway arranged, and all the two slotting bend pipe than galvanized iron material is good, maintenance period, the reduction gas pipeline maintenance cost of gas pipeline can be prolonged, and gas pipeline gas leakage can be effectively prevented;
The headkerchief threeway that has of the underground inlet tube of combustion gas of the present utility model has changed the underground inlet tube of combustion gas at underground force bearing point, makes the underground inlet tube of combustion gas be difficult for produce displacement, easy-rupturing not.
Described sleeve 200 adopts steel to make, and the surface-coated of this sleeve 200 has corrosion resistant coating, for example the epoxy polyester coating.
Described two slotting bend pipe 300 is 90 ° of two slotting bend pipes, and the slotting bend pipe 300 of this pair adopts steel to make, and the surface of described two slotting bend pipes 300 is coated with the corrosion protection rubber layer, for example the nitrile butadiene rubber layer.
Referring to Fig. 3, described steel is moulded crossover sub 400 and is comprised a tubular configured joint body 410 and joint lining core 420;
Described joint lining core 420 is arranged in the described tubular configured joint body 410, and an end of this joint lining core 420 is connected with the inwall of described tubular configured joint body 410 1 ends;
Described joint lining core 420 also is a tubulose, and this joint lining core 420 is than described tubular configured joint body 410 weak points;
The external diameter L1 of described joint lining core 420 is slightly larger than the internal diameter of described polyethylene pipe 500, and the outer wall of described joint lining core 420 is to the distance L 2 of the inwall of described tubular configured joint body 410 thickness less than described polyethylene pipe 500 tube walls;
The method of using described steel to mould crossover sub described two slotting bend pipes 300 of 400 connections and described polyethylene pipe 500 is: the end that described joint lining core 420 is connected with described tubular configured joint body 410 is used to connect described two slotting bend pipe 300, one end and this end of described two slotting bend pipes 300 are welded together, finish described two slotting bend pipe 300 and mould being connected of crossover sub 400 with described steel; Utilize external force that one end of described polyethylene pipe 500 is inserted in the described tubular configured joint body 410, and be enclosed within on the described joint lining core 420, as shown in Figure 4 (in Fig. 4, for the clear each several part that shows, each several part closely is not drawn in together), because the outer wall of described joint lining core 420 is to the distance L 2 of the inwall of described tubular configured joint body 410 thickness less than described polyethylene pipe 500 tube walls, guaranteed that well described polyethylene pipe 500 and described steel mould the sealing of crossover sub 400 joints, and guaranteed that described polyethylene pipe 500 is difficult for being pulled out and come.
Using described steel to mould crossover sub 400, to connect the method for described polyethylene pipes 500 and described steel pipe 600 the same, do not repeat them here, and the surface-coated of described steel pipe 600 has corrosion resistant coating, for example the epoxy polyester coating.
Referring to Fig. 5 and Fig. 6, described have headkerchief threeway 700 to comprise sleeve body 710 and three nuts 721,722,723;
Described sleeve body 710 is a tubular structure, and this sleeve body 710 is provided with three joints 711,712 and 713, and described joint 711 and joint 712 are positioned on the straight line, and described joint 713 is vertical with described joint 711 and joint 712;
Be equipped with outside thread 750 on described joint 711,712 and 713 the outer wall;
Described three nuts 721,722 and 723 are used with described three joints 711,712 and 713 respectively, are equipped with internal thread 760 on described three nuts 721,722 and 723 the inwall.
As shown in Figure 6, described nut 721 is used with described joint 711, internal thread 760 on described nut 721 inwalls is complementary with the outside thread on described joint 711 outer walls, when being used, described nut 721 is enclosed within on the described joint 711, realizes being connected of described nut 721 and described joint 711 by described internal thread 760 and outside thread 750;
One end of described joint 711 also is provided with seal ring 731 and resistance to plucking circle 741, and described seal ring 731 is arranged on the inwall of described joint 711, and described resistance to plucking circle 741 is arranged on the end face of described joint 711;
Described nut 721 is the nut that binds, and an end of promptly described nut 721 is a closed end;
Described joint 711 is not used in the underground inlet tube of the utility model combustion gas and connects other pipelines, therefore, the nut 721 that is used with described joint 711 is the nut that binds, when having water-water reactor to amass in the described source of the gas pipe 106, described nut 721 is screwed out described joint 711, just can take the interior water of described source of the gas pipe 106 away by described joint 711;
Described joint 712 is used to connect described source of the gas pipe 106, and described nut 722 is used with described joint 712, and the internal thread 760 on described nut 722 inwalls is complementary with the outside thread 750 on described joint 712 outer walls;
The inwall of described nut 722 1 ends is provided with seal ring 732, when using described joint 712 to connect described source of the gas pipe 106, described nut 722 is enclosed within on the described joint 712, one end of described joint 712 inserts in the described source of the gas pipe 106 and is threaded with described source of the gas pipe 106, rotate described nut 722 towards the direction of described source of the gas pipe 106, described seal ring 732 tightly is stuck between described nut 722 and the described source of the gas pipe 106, has guaranteed the sealing of described joint 712 and described source of the gas pipe 106 joints well;
Described joint 713 is used to connect described steel pipe 600, and described nut 723 is used with described joint 713, and the internal thread 760 on described nut 723 inwalls is complementary with the outside thread 750 on described joint 713 outer walls;
One end of described joint 713 is provided with seal ring 733 and resistance to plucking circle 742, and described seal ring 733 is arranged on the inwall of described joint 713, and described resistance to plucking circle 742 is arranged on the end face of described joint 713;
When using described joint 713 to connect described steel pipe 600, earlier described nut 723, resistance to plucking circle 742 and seal ring 733 are enclosed within on the described steel pipe 600 successively, in the end with described steel pipe 600 inserts described joint 713, rotate described nut 723 towards the direction of described joint 713, described resistance to plucking circle 742 and seal ring 733 tightly are stuck between described nut 723 and the described joint 713, described seal ring 733 has guaranteed the sealing of described steel pipe 600 and described joint 713 joints well, and described resistance to plucking circle 742 is used to prevent that described steel pipe 600 from pulling away described joint 713;
Described sleeve body 710 and three nuts 721,722,723 all adopt steel to make, and its surface is coated with etch-proof coating, for example the epoxy polyester coating;
Described seal ring 731,732 and 733 adopts rubber material to make, and described resistance to plucking circle 741 and 742 adopts plastic materials to make.
The underground inlet tube of combustion gas of the present utility model adopts has the headkerchief threeway to connect the gentle source capsule of steel pipe, and good seal performance can effectively prevent gas leakage;
Owing to there is the headkerchief threeway to be easy to keep balance, when the geology condition changes (as land subsidence), there is the headkerchief threeway to be difficult for producing displacement, therefore, the underground inlet tube of combustion gas of the present utility model can effectively prevent the steel pipe fracture;
The long service life of two slotting bend pipes that make than galvanized iron material the working life that the headkerchief threeway is arranged that steel is made, can prolong gas pipeline maintenance period, reduce the gas pipeline maintenance cost.
Claims (8)
1. the underground inlet tube of combustion gas is used for connecting the gentle source capsule of ground upper riser, comprises the sleeve that connects described ground upper riser, the two slotting bend pipe that is connected with described sleeve, it is characterized in that, comprises that also a polyethylene pipe, a steel pipe and have the headkerchief threeway;
One end of described two slotting bend pipes is moulded crossover sub by a steel and is connected with an end of described polyethylene pipe;
The other end of described polyethylene pipe is moulded crossover sub by a steel and is connected with an end of described steel pipe;
The other end of described steel pipe has the headkerchief threeway to be connected with described source of the gas pipe by described.
2. the underground inlet tube of combustion gas as claimed in claim 1 is characterized in that, described steel is moulded crossover sub and comprised tubular configured joint body and joint lining core;
Described joint lining core is arranged in the described tubular configured joint body, and an end of this joint lining core is connected with the inwall of described tubular configured joint body;
Described joint lining core is a tubulose, and the external diameter of this joint lining core is slightly larger than the internal diameter of described polyethylene pipe, and the outer wall of described joint lining core is to the distance of the inwall of the described tubular configured joint body thickness less than described polyethylene pipe tube wall.
3. the underground inlet tube of combustion gas as claimed in claim 1 or 2 is characterized in that, described have the headkerchief threeway to comprise sleeve body, first nut, second nut and the 3rd nut;
Described sleeve body is a tubular structure, and this sleeve body is provided with first joint, second joint and the 3rd joint;
Described first nut, second nut and the 3rd nut are enclosed within respectively on described first joint, second joint and the 3rd joint, and described first nut, second nut and the 3rd nut are used with described first joint, second joint and the 3rd joint respectively;
Described second joint is connected with described source of the gas pipe, and described the 3rd joint is connected with described steel pipe;
Described first nut is the nut of end sealing.
4. the underground inlet tube of combustion gas as claimed in claim 3 is characterized in that described first joint and second joint are positioned on the straight line, and described the 3rd joint is vertical with described first joint and second joint.
5. the underground inlet tube of combustion gas as claimed in claim 3 is characterized in that an end of described first joint is provided with seal ring and resistance to plucking circle, and described seal ring is arranged on the inwall of described first joint, and described resistance to plucking circle is arranged on the end face of described first joint.
6. the underground inlet tube of combustion gas as claimed in claim 3 is characterized in that, the inwall of described second joint, one end is provided with seal ring.
7. the underground inlet tube of combustion gas as claimed in claim 3 is characterized in that an end of described the 3rd joint is provided with seal ring and resistance to plucking circle, and described seal ring is arranged on the inwall of described the 3rd joint, and described resistance to plucking circle is arranged on the end face of described the 3rd joint.
8. the underground inlet tube of combustion gas as claimed in claim 1 is characterized in that, described sleeve, two slotting bend pipe, steel pipe and have the surface of headkerchief threeway to be coated with corrosion-resistant coating.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205218611U CN201803021U (en) | 2010-09-08 | 2010-09-08 | Combustion gas underground inlet pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205218611U CN201803021U (en) | 2010-09-08 | 2010-09-08 | Combustion gas underground inlet pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201803021U true CN201803021U (en) | 2011-04-20 |
Family
ID=43872519
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010205218611U Expired - Lifetime CN201803021U (en) | 2010-09-08 | 2010-09-08 | Combustion gas underground inlet pipe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201803021U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104930270A (en) * | 2015-07-06 | 2015-09-23 | 长春燃气热力设计研究院有限责任公司 | Prefabricated pipe fitting for fuel gas and manufacturing method of prefabricated pipe fitting |
| CN107393402A (en) * | 2017-07-24 | 2017-11-24 | 重庆科技学院 | Poisonous gas poisoning and suffocation accident cause calamity outdoor scene demo system |
-
2010
- 2010-09-08 CN CN2010205218611U patent/CN201803021U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104930270A (en) * | 2015-07-06 | 2015-09-23 | 长春燃气热力设计研究院有限责任公司 | Prefabricated pipe fitting for fuel gas and manufacturing method of prefabricated pipe fitting |
| CN104930270B (en) * | 2015-07-06 | 2016-05-25 | 长春燃气热力设计研究院有限责任公司 | A kind of prefabricated pipe fitting and preparation method thereof for combustion gas |
| CN107393402A (en) * | 2017-07-24 | 2017-11-24 | 重庆科技学院 | Poisonous gas poisoning and suffocation accident cause calamity outdoor scene demo system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20110420 |