CN102921685A - Bidirectional clearing device and applying device for natural gas bent pipeline - Google Patents
Bidirectional clearing device and applying device for natural gas bent pipeline Download PDFInfo
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- CN102921685A CN102921685A CN2012104218410A CN201210421841A CN102921685A CN 102921685 A CN102921685 A CN 102921685A CN 2012104218410 A CN2012104218410 A CN 2012104218410A CN 201210421841 A CN201210421841 A CN 201210421841A CN 102921685 A CN102921685 A CN 102921685A
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Abstract
The invention relates to an on-line clearing device and an on-line inner applying device for a natural pipeline. A bidirectional clearing device for a natural gas bent pipeline comprises a first sphere body and a second sphere body, wherein the first sphere body and the second sphere body are made of hard materials; a first mounting groove is formed in the sphere surface of the first sphere body; a spherical-crown-shaped spiral reamer or hard rubber of which the outer surface is high above the sphere surface of the first sphere body is arranged in the first mounting groove; a second mounting groove is formed in the sphere surface of the second sphere body; a spherical-crown-shaped hard rubber of which the outer surface is high above the sphere surface of the second sphere body is arranged in the second mounting groove; and the first sphere body and the second sphere body are connected by a first connector and can relatively rotate in any direction. An applying device for the natural gas bent pipeline comprises a front applying device, a rear applying device and a coating section positioned between the front applying device and the rear applying device; and the front applying device comprises the first sphere body and the second sphere body. By the bidirectional clearing device and the applying device, the multidirectional bent natural pipeline can be effectively cleared or applied.
Description
Technical field
The present invention relates to the device of a kind of cleanser conduit system, particularly relate to application means in a kind of online clearing device for natural gas line and natural gas line online.
Background technology
The natural gas operation pipeline in the whole world is many ten thousand kilometers of more than ten, the investment of the Gas Industry of the five-year China will exceed 1,200 hundred million RMB, and natural gas is as clean energy resource, such energy project, pulling to economy is very powerful, and social benefit also is fairly obvious.For the natural gas line of coating in not doing, need by convention working pipeline carried out every year 3-4 time Hand scarf; For the natural gas line of making interior anti-drag paint, need by convention working pipeline carried out every year 1-2 time Hand scarf; Natural gas tube for preventing thermal stress and adapt to the bridge opening and the earth's surface changes, installs certain bend pipe (bend in one direction, i.e. in one plane bending) additional on the pipeline of being everlasting in design and construction., passing in time, the factors such as landforms variation, temperature change and earthquake, multi-direction bending phenomenon (be that bend pipe is subject to External Force Acting, and the phenomenon of curvature of space occurs) usually appears in crooked pipeline.And bend pipe is very easily to corrode part, and the sudden change of curvature causes fluid rotary, lift-off and karman vortex etc., and dirt is given birth on the opposite of edge etching easily, and this moves safely and effectively working pipeline and constitutes a threat to.So to being a difficult job at labour swan-neck ray examination, cleaning and repaired mouth.
At present natural gas companies generally is connected in series implementation with compressed nitrogen with a 3-5 cleaner with the rubber edge cap shape device 1 ' (external diameter adapts with natural gas tube) of minor axis, clears up, and its structure as shown in Figure 1.But, jam can occur when multi-direction bending appears in pipeline, it is not all right to advance, and moves back and does not go out.In this situation, the efficient of bend pipe cleaning is extremely low.Therefore develop once efficient natural gas tube curved pipe multidirectional clear and coherently and applicator is very necessary, this device is given birth at once.
Summary of the invention
The technical problem to be solved in the present invention provides a kind of two-way dredging device of natural gas curved pipe easy and simple to handle, can clear up efficiently the natural gas line that multi-direction bending occurs.
The two-way dredging device of natural gas curved pipe of the present invention, comprise the first spheroid and the second spheroid made by hard material, offer the first mounting groove on the sphere of the first spheroid, be provided with spherical spiral reamer or hard rubber that outer surface is higher than the sphere of the first spheroid in the first mounting groove, offer the second mounting groove on the sphere of the second spheroid, be provided with the spherical hard rubber that outer surface is higher than the sphere of the second spheroid in the second mounting groove, the first spheroid be connected spheroid and connect by the first connector, the first spheroid and the second spheroid relatively rotate on can be in any direction.
The two-way dredging device difference from prior art of natural gas curved pipe of the present invention is that the present invention is when clear and coherent natural gas line, by in the first mounting groove of the outer surface of the first spheroid, spiral reamer being set, thunder thorn (thorn-like protrusion) is arranged on natural gas pipeline inner wall, can effectively the thunder thorn be removed, when there is not the thunder thorn in natural gas pipeline inner wall, the outer surface of the first spheroid can arrange hard rubber, in the second mounting groove of the outer surface of the second spheroid, hard rubber is set, can effective clear and coherent natural gas line, when multi-direction bending appears in the bend pipe of natural feed channel, since the first spheroid be connected spheroid and connect by the first connector, the first spheroid and the second spheroid relatively rotate on can be in any direction, so the stuck phenomenon of cleaner in the prior art can not occur, therefore can clear up efficiently the natural gas line that multi-direction bending occurs.
The two-way dredging device of natural gas curved pipe of the present invention, wherein said the first connector is head rod, offer conical the second room groove on the sphere of the right-hand member of the second spheroid, the cone angle alpha of the second room groove is 18 °～28 °, place, summit at the second room groove offers the second ball-and-socket, the left end of head rod is provided with the first spherical connector, the first spherical connector is installed in the second ball-and-socket rotationally, be matched in clearance between the first spherical connector and the second ball-and-socket inwall, the right-hand member of head rod is fixedly connected on the left end of the first spheroid.
The two-way dredging device of natural gas curved pipe of the present invention, also include at least one the 3rd spheroid, all offer the 3rd mounting groove on the sphere of each the 3rd spheroid, be provided with the spherical hard rubber that outer surface is higher than the sphere of the 3rd spheroid in the 3rd mounting groove, sphere at the right-hand member of each the 3rd spheroid offers conical trivacancy groove, the cone angle alpha of trivacancy groove is 18 °～28 °, place, summit at each trivacancy groove offers the 3rd ball-and-socket, between the 3rd spheroid and the second spheroid, all connect by the second connecting rod between two the 3rd spheroids that face mutually, the left end of each the second connecting rod is provided with the second spherical connector, the second spherical connector is installed in the 3rd ball-and-socket rotationally, be matched in clearance between the second spherical connector and the 3rd ball-and-socket inwall, the right-hand member of the second connecting rod between the second spheroid and the 3rd spheroid is fixedly connected on the left end of the second spheroid, and the right-hand member of the second connecting rod between two the 3rd spheroids that face mutually is fixedly connected on the left end of the 3rd spheroid that is positioned at the right side.
The two-way dredging device of natural gas curved pipe of the present invention, the length of wherein said head rod and each the second connecting rod is 0.62～0.8 times of natural gas line internal diameter.To prevent stuck situation hour occurring at the radius of natural gas bend pipe curvature bending.
The two-way dredging device of natural gas curved pipe of the present invention, the sidewall of wherein said the second room groove and the second ball-and-socket is that body and the second mounting blocks by the second spheroid consists of, the second mounting blocks is fixedly mounted on the body of the second spheroid, the sidewall of each trivacancy groove and the 3rd ball-and-socket all is to be made of the body of the 3rd spheroid and the 3rd mounting blocks, and the 3rd mounting blocks is fixedly mounted on the body of the 3rd corresponding spheroid.By adopting the second installing hole and the 3rd mounting blocks, head rod and the second connecting rod can be installed easily.
The two-way dredging device of natural gas curved pipe of the present invention is provided with the loss of weight chamber on wherein said the first spheroid, the second spheroid and each the 3rd spheroid.
The two-way dredging device of natural gas curved pipe of the present invention, wherein said the first connector is elasticity pitman or rope.
The technical problem to be solved in the present invention provides a kind of applicator of natural gas curved pipe, and the natural gas line of multi-direction bending appears in spreading efficiently.
The applicator of natural gas curved pipe of the present invention, comprise front applicator, rear applicator and the coating section between front applicator and rear applicator, front applicator comprises the first spheroid and the second spheroid, offer the first mounting groove on the sphere of the first spheroid, be provided with the spherical hard rubber that outer surface is higher than the sphere of the first spheroid in the first mounting groove, offer the second mounting groove on the sphere of the second spheroid, be provided with the spherical hard rubber that outer surface is higher than the sphere of the second spheroid in the second mounting groove, the first spheroid be connected spheroid and connect by the first connector, the first spheroid and the second spheroid relatively rotate on can be in any direction, rear applicator is identical with front applicator structure, rear applicator is positioned at the left side of front applicator, the external diameter of the hard rubber on the second spheroid of rear applicator is less 1.5～1.9 millimeters than the internal diameter of natural gas line, the external diameter of the hard rubber on the first spheroid of rear applicator is slightly less than the external diameter of the hard rubber on the second spheroid, and the first spheroid of front applicator and the external diameter of the hard rubber on the second spheroid all are slightly less than the external diameter of the hard rubber on the second spheroid of rear applicator.
The applicator difference from prior art of natural gas curved pipe of the present invention is that front applicator of the present invention and rear applicator are provided with the first spheroid and the second spheroid, and on the sphere of the first spheroid and the second spheroid, all be installed with hard rubber, between front applicator and the rear applicator coating section is set, during use, pass through gases at high pressure, promoting applicator such as nitrogen moves in natural gas line, because the external diameter of the hard rubber on the second spheroid of rear applicator is less 1.5～1.9 millimeters than the internal diameter of natural gas line, the external diameter of the hard rubber on the first spheroid of rear applicator is slightly less than the external diameter of the hard rubber on the second spheroid, the coating of coating section can be coated at along the gap of rear applicator and natural gas pipeline inner wall on the natural gas pipeline inner wall, since front applicator be connected applicator the first spheroid be connected spheroid and all connect by the first connector, the first spheroid and the second spheroid relatively rotate on can be in any direction, therefore so the stuck phenomenon of cleaner in the prior art can not occur, the natural gas line of multi-direction bending appears in spreading efficiently.
The applicator of natural gas curved pipe of the present invention, the first connector of wherein said front applicator and rear applicator is head rod, offer conical the second room groove on the sphere of the right-hand member of each the second spheroid, the cone angle alpha of the second room groove is 18 °～28 °, place, summit at the second room groove offers the second ball-and-socket, the left end of each head rod is provided with the first spherical connector, the first spherical connector is installed in the second ball-and-socket rotationally, be matched in clearance between the first spherical connector and the second ball-and-socket inwall, the right-hand member of head rod is fixedly connected on the left end of the first corresponding spheroid.
The applicator of natural gas curved pipe of the present invention, the left end of wherein said rear applicator also fixedly mount and are useful on the air propeller that dries up coating.When coating just has been coated on the natural gas pipeline inner wall, the inhomogeneous phenomenon of spreading can appear under Action of Gravity Field, by air propeller is installed, can fast coating be dried up, avoid occurring the phenomenon of coating spreading inequality.
The invention will be further described below in conjunction with accompanying drawing.
Description of drawings
Fig. 1 is the front view of the natural gas line dredging device of prior art;
Fig. 2 is that the master of the embodiment 1 of the two-way dredging device of natural gas curved pipe of the present invention looks cutaway view;
Fig. 3 is along the cutaway view of A-A direction among Fig. 2;
Fig. 4 is the front view of the embodiment 2 of the two-way dredging device of natural gas curved pipe of the present invention;
Fig. 5 is the front view of natural gas curved pipe applicator embodiment 5 of the present invention.
The specific embodiment
Embodiment 1:
As shown in Figure 2, the two-way dredging device of natural gas curved pipe of the present invention comprises the first spheroid 101 and the second spheroid 102 of being made by hard material, and the first spheroid 101 and the second spheroid 102 are made by stainless steel in the present embodiment.Sphere at the first spheroid 101 offers the first mounting groove 103, in conjunction with shown in Figure 3, be provided with the spiral reamer 104 that outer surface is higher than the sphere of the first spheroid 101 in the first mounting groove 103, offer the second mounting groove 106 on the sphere of the second spheroid 102, the 106 interior sulfurations of the second mounting groove have outer surface to be higher than the hard rubber 105 of the sphere of the second spheroid 102, the proportion of hard rubber 105 is close to 1.2, it is spherical that the outer surface of spiral reamer 104 and hard rubber 105 all is, and the diameter of hard rubber 105 is than the smaller 1.8mm to 3.6mm of caliber.The first spheroid 101 be connected spheroid 102 and connect by the first connector, the first spheroid 101 and the second spheroid 102 relatively rotate on can be in any direction.Wherein the first connector is head rod 107, offer conical the second room groove 108 on the sphere of the right-hand member of the second spheroid 102, the cone angle alpha of the second room groove 108 is 18 °, also can be 20 °, 25 ° or 28 °, place, summit at the second room groove 108 offers the second ball-and-socket 109, the left end of head rod 107 is provided with the first spherical connector 110, the first spherical connector 110 is installed in the second ball-and-socket 109 rotationally, be matched in clearance between the first spherical connector 110 and the second ball-and-socket 109 inwalls, wherein the sidewall of the second room groove 108 and the second ball-and-socket 109 is that body and the second mounting blocks 117 by the second spheroid 102 consists of.The right-hand member of head rod 107 is fixedly connected on the left end of the first spheroid 101, and head rod 107 and the first spheroid 101 are formed in one in the present embodiment.The second mounting blocks 117 is fixedly mounted on the body of the second spheroid 102.The length of head rod 107 is 0.62 times of natural gas line internal diameter, also can be 0.7 or 0.8 times.Be provided with the loss of weight chamber at the first spheroid 101 and the second spheroid 102.
This device is when carrying out pigging, pull down first the nipple for the treatment of the pigging two ends, two-way dredging device is put into wherein, manual order walking one little span, will be with the blind plate shutoff of the port of gas-charging connection pipeline, introduce pressure nitrogen gas from gas-charging connection, adjust pressure, through pressure-acting, dredging device is just walked forward along many curved pipes, because this dredging device is walked along multidirectional bend pipe, its domed spiral reamer 104 has a circular cross-section to be bordering on vertical with the bend pipe axial line with hard rubber 105 all the time, so spiral reamer 104 and hard rubber 105 can be in running order all the time, therefore multidirectional bend pipe is namely by rapidly and efficiently clear and coherent.
This device both can move ahead, and also can fall back, the no-float of in multidirectional bend pipe, walking, and jam does not occur in walking in multidirectional bend pipe.
Embodiment 2:
As shown in Figure 4, the difference of the two-way dredging device of natural gas curved pipe of the present invention and embodiment 1 is also to comprise two the 3rd spheroids 111, all offer the 3rd mounting groove 112 on the sphere of each the 3rd spheroid 111, be provided with the hard rubber 105 that outer surface is higher than the sphere of the 3rd spheroid 111 in the 3rd mounting groove 112, it is spherical that the outer surface of hard rubber 105 all is.Sphere at the right-hand member of each the 3rd spheroid 111 offers conical trivacancy groove 113, the cone angle alpha of trivacancy groove 113 is that α is 18 °, also can be 20 °, 25 ° or 28 °, place, summit at each trivacancy groove 113 offers the 3rd ball-and-socket 114, the sidewall of trivacancy groove 113 and the 3rd ball-and-socket 114 all is to be made of the body of the 3rd spheroid 111 and the 3rd mounting blocks 118, and the 3rd mounting blocks 118 is fixedly mounted on the body of the 3rd corresponding spheroid 111.Between the 3rd spheroid 111 and the second spheroid 102, all connect by the second connecting rod 115 between two the 3rd spheroids 111 that face mutually, the left end of each the second connecting rod 115 is provided with the second spherical connector 116, the second spherical connector 116 is installed in the 3rd ball-and-socket 114 rotationally, be matched in clearance between the second spherical connector 116 and the 3rd ball-and-socket 114 inwalls, the right-hand member of the second connecting rod 115 between the second spheroid 102 and the 3rd spheroid 111 is fixedly connected on the left end of the second spheroid 102, and the right-hand member of the second connecting rod 115 between two the 3rd spheroids 111 that face mutually is fixedly connected on the left end of the 3rd spheroid 111 that is positioned at the right side.Be provided with the loss of weight chamber at each the 3rd spheroid 111.The length of the second connecting rod 115 is 0.62 times of natural gas line internal diameter, also can be 0.7 or 0.8 times.Certainly, the 3rd spheroid 111 also can be 1,3 or 4.By a plurality of successively the 3rd spheroids 111 of series connection are set, can improve the cleaning effect of pipeline.
Certainly, in the first mounting groove 103 that the sphere of the first spheroid 101 is offered, also can vulcanize spherical hard rubber 105, not have the situation of thunder thorn to be used for natural gas pipeline inner wall.When using two-way dredging device cleaning 750mm pipe, the diameter of the hard rubber 105 of low order end is 744.3mm, and the diameter of high order end hard rubber 105 is 748.7mm.
Embodiment 3:
The difference of present embodiment and embodiment 1 only is the first mounting groove 103 of offering at the sphere of the first spheroid 101, interior setting be the hard rubber 105 of the outer surface sphere that is higher than the first spheroid 101, not spiral reamer, do not have the situation of thunder thorn to be applicable to natural gas pipeline inner wall.
Embodiment 4:
The difference of present embodiment and embodiment 1 only is that the first connector is the elasticity pitman, the two ends of elasticity pitman all are fixedly connected on the first spheroid and the second spheroid, present embodiment Elastic pitman is made by elastomeric material, and the elasticity pitman also can adopt spring steel to make.Certainly, the first connector also can be rope, and the two ends of rope are fixedly connected on the first spheroid and the second spheroid.
Embodiment 5:
As shown in Figure 5, the applicator of a kind of natural gas curved pipe of the present invention, comprise front applicator 251, rear applicator 252 and the coating section 255 between front applicator 251 and rear applicator 252, front applicator 251 comprises the first spheroid 201 and the second spheroid 202, offer the first mounting groove 203 on the sphere of the first spheroid 201, be provided with the spherical hard rubber 205 that outer surface is higher than the sphere of the first spheroid 201 in the first mounting groove 203, offer the second mounting groove 206 on the sphere of the second spheroid 202, be provided with the spherical hard rubber 205 that outer surface is higher than the sphere of the second spheroid 202 in the second mounting groove 206, the first spheroid 201 be connected spheroid 202 and connect by the first connector, the first spheroid 201 and the second spheroid 202 relatively rotate on can be in any direction, rear applicator 252 is identical with front applicator 251 structures, rear applicator 252 is positioned at the left side of front applicator 251, the external diameter of the hard rubber 205 on the second spheroid 202 of rear applicator 252 is less by 1.5 than the internal diameter of natural gas line, 1.7 or 1.9 millimeters, the diameter of domed four hard rubber 205 from left to right differs 1.3mm successively in the present embodiment, and hard rubber 205 diameters in left side are maximum.The external diameter of the hard rubber on the first spheroid 201 of rear applicator 252 is slightly less than the external diameter of the hard rubber on the second spheroid 202, and the first spheroid 201 of front applicator 251 and the external diameter of the hard rubber on the second spheroid 202 all are slightly less than the external diameter of the hard rubber on the second spheroid 202 of rear applicator 252.The first connector of front applicator 251 and rear applicator 252 is head rod 207, offer conical the second room groove 208 on the sphere of the right-hand member of each the second spheroid 202, the cone angle alpha of the second room groove 208 is 18 °, also can be 20 °, 25 ° or 28 °, place, summit at the second room groove 208 offers the second ball-and-socket 209, the left end of each head rod 207 is provided with the first spherical connector 210, the first spherical connector 210 is installed in the second ball-and-socket 209 rotationally, be matched in clearance between the first spherical connector 210 and the second ball-and-socket 209 inwalls, the right-hand member of head rod 207 is fixedly connected on the left end of the first corresponding spheroid 201.The first connector also can be the elasticity pitman, and the two ends of elasticity pitman all are fixedly connected on the first spheroid 201 and the second spheroid 202.Also fixedly mount at the left end of rear applicator 252 and to be useful on the air propeller 250 that dries up coating.Coating section 255 adopts the two ingredient liquids epoxy coating in the present embodiment.
When carrying out on-the-spot spreading two ingredient liquids epoxy coating, when applicator is carried out away piping by pressure place nitrogen, the coating of coating section 255 can be coated at along the gap of rear applicator and natural gas pipeline inner wall on the natural gas pipeline inner wall, has namely finished the spreading work of the epoxy coating in the pipeline.
Above-described embodiment is described preferred embodiment of the present invention; be not that scope of the present invention is limited; design under the prerequisite of spirit not breaking away from the present invention; various distortion and improvement that those of ordinary skills make technical scheme of the present invention all should fall in the definite protection domain of claims of the present invention.
Claims (10)
1. two-way dredging device of natural gas curved pipe, it is characterized in that: comprise the first spheroid (101) and the second spheroid (102) made by hard material, offer the first mounting groove (103) on the sphere of described the first spheroid (101), be provided with spherical spiral reamer (104) or hard rubber (105) that outer surface is higher than the sphere of the first spheroid (101) in the first mounting groove (103), offer the second mounting groove (106) on the sphere of the second spheroid (102), be provided with the spherical hard rubber (105) that outer surface is higher than the sphere of the second spheroid (102) in the second mounting groove (106), described the first spheroid (101) be connected spheroid (102) and connect by the first connector, described the first spheroid (101) and the second spheroid (102) relatively rotate on can be in any direction.
2. the two-way dredging device of natural gas curved pipe according to claim 1, it is characterized in that: described the first connector is head rod (107), offer conical the second room groove (108) on the sphere of the right-hand member of described the second spheroid (102), the cone angle alpha of described the second room groove (108) is 18 °～28 °, place, summit at the second room groove (108) offers the second ball-and-socket (109), the left end of described head rod (107) is provided with the first spherical connector (110), described the first spherical connector (110) is installed in the second ball-and-socket (109) rotationally, be matched in clearance between the first spherical connector (110) and the second ball-and-socket (109) inwall, the right-hand member of described head rod (107) is fixedly connected on the left end of the first spheroid (101).
3. the two-way dredging device of natural gas curved pipe according to claim 2, it is characterized in that: also include at least one the 3rd spheroid (111), all offer the 3rd mounting groove (112) on the sphere of described each the 3rd spheroid (111), be provided with the spherical hard rubber (105) that outer surface is higher than the sphere of the 3rd spheroid (111) in the 3rd mounting groove (112), sphere at the right-hand member of each the 3rd spheroid (111) offers conical trivacancy groove (113), the cone angle alpha of described trivacancy groove (113) is 18 °～28 °, place, summit at each trivacancy groove (113) offers the 3rd ball-and-socket (114), between described the 3rd spheroid (111) and the second spheroid (102), all connect by the second connecting rod (115) between two the 3rd spheroids (111) that face mutually, the left end of each the second connecting rod (115) is provided with the second spherical connector (116), described the second spherical connector (116) is installed in the 3rd ball-and-socket (114) rotationally, be matched in clearance between the second spherical connector (116) and the 3rd ball-and-socket (114) inwall, the right-hand member of the second connecting rod (115) between described the second spheroid (102) and the 3rd spheroid (111) is fixedly connected on the left end of the second spheroid (102), and the right-hand member of the second connecting rod (115) between described two the 3rd spheroids (111) that face mutually is fixedly connected on the left end of the 3rd spheroid (111) that is positioned at the right side.
4. the two-way dredging device of natural gas curved pipe according to claim 3, it is characterized in that: the length of described head rod (107) and each the second connecting rod (115) is 0.62～0.8 times of natural gas line internal diameter.
5. the two-way dredging device of natural gas curved pipe according to claim 4, it is characterized in that: the sidewall of described the second room groove (108) and the second ball-and-socket (109) is to be made of the body of the second spheroid (102) and the second mounting blocks (117), the second mounting blocks (117) is fixedly mounted on the body of the second spheroid (102), the sidewall of each described trivacancy groove (113) and the 3rd ball-and-socket (114) all is to be made of the body of the 3rd spheroid (111) and the 3rd mounting blocks (118), and the 3rd mounting blocks (118) is fixedly mounted on the body of corresponding the 3rd spheroid (111).
6. the two-way dredging device of natural gas curved pipe according to claim 5 is characterized in that: be provided with the loss of weight chamber on described the first spheroid (101), the second spheroid (102) and each the 3rd spheroid (111).
7. the two-way dredging device of natural gas curved pipe according to claim 1, it is characterized in that: described the first connector is elasticity pitman or rope.
8. the applicator of a natural gas curved pipe, it is characterized in that: comprise front applicator (251), rear applicator (252) and be positioned at front applicator (251) and rear applicator (252) between coating section (255), described front applicator (251) comprises the first spheroid (201) and the second spheroid (202), offer the first mounting groove (203) on the sphere of described the first spheroid (201), be provided with the spherical hard rubber (205) that outer surface is higher than the sphere of the first spheroid (201) in the first mounting groove (203), offer the second mounting groove (206) on the sphere of the second spheroid (202), be provided with the spherical hard rubber (205) that outer surface is higher than the sphere of the second spheroid (202) in the second mounting groove (206), described the first spheroid (201) be connected spheroid (202) and connect by the first connector, described the first spheroid (201) and the second spheroid (202) relatively rotate on can be in any direction, described rear applicator (252) is identical with front applicator (251) structure, rear applicator (252) is positioned at the left side of front applicator (251), the external diameter of the hard rubber (205) on second spheroid (202) of described rear applicator (252) is less 1.5～1.9 millimeters than the internal diameter of natural gas line, the external diameter of the hard rubber on first spheroid (201) of rear applicator (252) is slightly less than the external diameter of the hard rubber on the second spheroid (202), and first spheroid (201) of front applicator (251) and the external diameter of the hard rubber on the second spheroid (202) all are slightly less than the external diameter of the hard rubber on second spheroid (202) of rear applicator (252).
9. the applicator of natural gas curved pipe according to claim 8, it is characterized in that: the first connector of described front applicator (251) and rear applicator (252) is head rod (207), offer conical the second room groove (208) on the sphere of the right-hand member of described each the second spheroid (202), the cone angle alpha of described the second room groove (208) is 18 °～28 °, place, summit at the second room groove (208) offers the second ball-and-socket (209), the left end of described each head rod (207) is provided with the first spherical connector (210), described the first spherical connector (210) is installed in the second ball-and-socket (209) rotationally, be matched in clearance between the first spherical connector (210) and the second ball-and-socket (209) inwall, the right-hand member of described head rod (207) is fixedly connected on the left end of corresponding the first spheroid (201).
10. according to claim 8 or the applicator of 9 described natural gas curved pipes, it is characterized in that: the left end of described rear applicator (252) also fixedly mounts and is useful on the air propeller (250) that dries up coating.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2012104218410A CN102921685A (en) | 2012-10-29 | 2012-10-29 | Bidirectional clearing device and applying device for natural gas bent pipeline |
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| CN2012104218410A CN102921685A (en) | 2012-10-29 | 2012-10-29 | Bidirectional clearing device and applying device for natural gas bent pipeline |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114147011A (en) * | 2020-09-04 | 2022-03-08 | 中国石油天然气股份有限公司 | Blockage relieving method for salt crystallization blockage of natural gas pipeline |
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| CN114147011A (en) * | 2020-09-04 | 2022-03-08 | 中国石油天然气股份有限公司 | Blockage relieving method for salt crystallization blockage of natural gas pipeline |
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