CN203551400U - Device for testing hydraulic pressure of single joint of large-diameter pressure bearing pipeline - Google Patents

Device for testing hydraulic pressure of single joint of large-diameter pressure bearing pipeline Download PDF

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Publication number
CN203551400U
CN203551400U CN201320728113.4U CN201320728113U CN203551400U CN 203551400 U CN203551400 U CN 203551400U CN 201320728113 U CN201320728113 U CN 201320728113U CN 203551400 U CN203551400 U CN 203551400U
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CN
China
Prior art keywords
pressure
board
fixed
steel ring
bearing steel
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Withdrawn - After Issue
Application number
CN201320728113.4U
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Chinese (zh)
Inventor
汤浪洪
徐望
蒋婧
朱紫艳
刘骁
谢卫夫
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China Construction Fifth Bureau Third Construction Co Ltd
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China Construction Fifth Bureau Third Construction Co Ltd
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Priority to CN201320728113.4U priority Critical patent/CN203551400U/en
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Abstract

The utility model provides a device for testing the hydraulic pressure of a single joint of a large-diameter pressure bearing pipeline. The device comprises an inner fixed ring, ejecting and fixing parts, a pressure bearing steel ring, a water inlet device, an exhausting device and a seal ring, wherein the inner fixed ring is fixed in the pressure bearing steel ring through fastening bolts and nuts of the ejecting and fixing parts; the water inlet device comprises a first ejecting plate, a first casing pipe and a power device; the first ejecting plate is fixed on the inner wall of the pressure bearing steel ring; one end of the first casing pipe is fixed on the first ejecting plate, and the other end of the first casing pipe is connected with the power device; a pressure meter is arranged between the power device and the first casing pipe; the exhausting device comprises a second ejecting plate and a second casing pipe; the second ejecting plate is fixed on the inner wall of the pressure bearing steel ring; one end of the second casing pipe is fixed on the second ejecting plate, and the sealing device is arranged at the other end of the second casing pipe. The device is simple in overall structure and convenient to use; due to the adoption of a single-connector hydraulic pressure test, the construction is simple, water resources can be saved, and the time for injecting water and discharging water can be saved.

Description

The single seam crossing water test unit of a kind of major diameter bearing pipe
Technical field
The utility model relates to band rigidity joint pressure conduit and uses water test unit field, especially, relates to the single seam crossing water test unit of a kind of major diameter (DN > 800mm) bearing pipe.
Background technology
In water supply engineering, in the distribution system of water supply, industrial chemical engineering, in transmission pipeline network, most pipelines adopt pressure pipeline, the hydraulic testing of pressure pipeline is comprehensive inspection of interface to pipeline, tubing, construction quality, is also a pilot project must fulfiling before the acceptance of work.
Tradition ductile iron pipeline Pressure test program adopts duct segments pressure testing, after the pipeline of general construction 500m left and right, pipe ends is sealed, in pipeline, fill with water, integrated piping has been constructed and has been carried out whole pressure testing again, classic method has following drawback: (1) adopts adapter joint steel pipe on spheroidal-graphite cast iron, on steel pipe, with steel plate, do plug, and then in pipeline, carry out full water pressure testing, because process pipe caliber is large, water consumption is large, and cost is high, and need to excavate working pit at pipeline external, increase earth moving amount, increase construction cost; (2) detect after problem, because pipeline is oversize, adjustment difficulty is large; (3) affect the backfilling of earthwork time, pipeline exposes overlong time, the earthwork not in time backfill easily produces pipeline and suffers damage, the words of drawing water not in time again as the words of rich groundwater are owing to there is no earthing, local pipeline easily floats, destroy pipe joint, once and pipe joint destroy, must remove pipeline and reconnect.
Therefore, invent that a kind of cost is low, the water test unit of easy construction, saving resource has great importance.
Utility model content
The purpose of this utility model is to provide a kind of structure to simplify, cost is low, the single seam crossing water test unit of the major diameter bearing pipe of easy construction, and concrete technical scheme is as follows:
The single seam crossing water test unit of major diameter bearing pipe, comprises interior set collar, top firmware, pressure-bearing steel ring, water feed apparatus, exhaust apparatus and the independent O-ring seal arranging;
Described top firmware comprises top board and fastening bolt, and described top board is arranged on the inwall of described pressure-bearing steel ring, and one end of described fastening bolt is arranged on described top board, and the other end is provided with the nut matching with it;
Described interior set collar is by the inside at described pressure-bearing steel ring that is fixed of described fastening bolt and nut;
Described water feed apparatus comprises the first top board, the first sleeve pipe and propulsion system; Described the first top board is fixedly installed on the inwall of described pressure-bearing steel ring; One end of described the first sleeve pipe is fixed on described the first top board, and the other end is connected with described propulsion system; On described the first top board, O-ring seal and described pressure-bearing steel ring, be equipped with the first hole communicating with the inside of described the first sleeve pipe; Between described propulsion system and described the first sleeve pipe, be provided with tensimeter;
Described exhaust apparatus comprises the second top board and the second sleeve pipe; Described the second top board is fixedly installed on the inwall of described pressure-bearing steel ring; One end of described the second sleeve pipe is fixed on described the second top board, and the other end is provided with packoff; On described the second top board, O-ring seal and described pressure-bearing steel ring, be equipped with the second hole communicating with the inside of described the second sleeve pipe.
Preferred in above technical scheme, described propulsion system are pressure testing machine, between described pressure testing machine and described the first sleeve pipe, by flexible pipe, are connected.
Preferred in above technical scheme, the inwall of described the second sleeve pipe is provided with internal thread, and described packoff is the sealing nut with screw rod, and screw rod is provided with the external thread matching with described internal thread.
Preferred in above technical scheme, described the first top board and described the second top board are all welded on the inwall of described pressure-bearing steel ring; One end of described the first sleeve pipe is welded on described the first top board; One end of described the second sleeve pipe is welded on described the second top board.
Preferred in above technical scheme, the material of described O-ring seal is rubber; The material of described pressure-bearing steel ring is C shaped steel; The material of described interior set collar is channel-section steel; The material of described top board is steel plate.
In order to reach better technique effect, also comprise can be along roller set from inner-walls of duct to front slide, described roller set comprises fixed part, fixed bin, support member, roller shaft and roller, described fixed bin is movably fixed on described interior set collar by described fixed part, described support member is arranged between described interior set collar and pressure-bearing steel ring, and its one end is fixed on described fixed bin, described roller shaft is arranged on described support member, and described roller is arranged on described roller shaft.
Apply the single seam crossing water test unit of major diameter bearing pipe of the present utility model, there is following technique effect:
(1) device comprises interior set collar, top firmware, pressure-bearing steel ring, water feed apparatus, exhaust apparatus and the independent several major parts of O-ring seal that arrange, and one-piece construction is simplified, easy to use and production cost is low in construction.
(2) propulsion system of the present utility model are pressure testing machine, and by flexible pipe, are connected between described pressure testing machine and described the first sleeve pipe, for convenience detach and transportation.
(3) the utility model exhaust apparatus adopts the sealing nut with screw rod to seal, easy to operate and good seal performance.
(4) in the utility model between the first top board and the second top board and pressure-bearing steel ring, between the first sleeve pipe and the first top board and all adopt welding, good stability, and long service life between the second sleeve pipe and the second top board.
(5) the material selection C shaped steel of the material selection rubber of O-ring seal of the present utility model, pressure-bearing steel ring, the material selection channel-section steel of interior set collar and the material selection steel plate of top board, material easily obtains, and can bring into play its advantage separately, make package unit practical.
(6) the utility model can also be provided with roller set from inner-walls of duct to front slide that can be along, after the hydraulic testing completes, under the drive of roller set, a whole set of water test unit integral body moves forward carries out the hydraulic testing next time, device conveniently moving is time saving and energy saving, practical.
The hydraulic test method of the single seam crossing water test unit of the utility model major diameter bearing pipe, comprises the following steps:
The first step: by pipe string, after passed examination, O-ring seal is close to the interface inner wall outside of pipeline group;
Second step: pressure-bearing steel ring is held on described O-ring seal, and the position that described pressure-bearing steel ring is provided with exhaust apparatus is positioned at the top position of inner-walls of duct;
The 3rd step: rotate the nut of top firmware on described interior set collar, described pressure-bearing steel ring is pressed on to the outside of described O-ring seal, described O-ring seal and pipe joint place form enclosed cavity;
The 4th step: to water filling in enclosed cavity, open packoff by propulsion system simultaneously, close packoff after filling with water in described sealed cavity, carry out the hydraulic testing;
The 5th step: after the hydraulic testing completes, remove water test unit.
Wherein, the described passed examination in the described first step refer to foreign in pipeline, pipe joint without breakage and rubber ring without distortion and without fracture; Wherein, the described hydraulic testing is specially: by the pressure in propulsion system classification rising enclosed cavity, when manometric reading reaches default definite value, observe and record its voltage drop value; Wherein, the concrete steps of the dismounting water test unit in described the 5th step are: rotary nut makes the top board on the firmware of top leave the inner wall surface of described pressure-bearing steel ring, takes out O-ring seal, more described pressure-bearing steel ring and described interior set collar colligation are integral.
Apply hydraulic test method of the present utility model, construction is simple; Adopt the single seam crossing hydraulic testing, conserve water and greatly save the time of water filling and draining, save the cost of the hydraulic testing, practical.
Below with reference to figure, the utility model is described in further detail.
Accompanying drawing explanation
The accompanying drawing that forms the application's a part is used to provide further understanding of the present utility model, and schematic description and description of the present utility model is used for explaining the utility model, does not form improper restriction of the present utility model.In the accompanying drawings:
Fig. 1 is the overall schematic of the utility model preferred embodiment 1;
Fig. 2 is the Facad structure schematic diagram of firmware junction in top in Fig. 1;
Fig. 3 is the side structure schematic diagram of firmware junction in top in Fig. 1;
Fig. 4 is the Facad structure schematic diagram of water feed apparatus junction in Fig. 1;
Fig. 5 is the side structure schematic diagram of water feed apparatus junction in Fig. 1;
Fig. 6 is the Facad structure schematic diagram of exhaust apparatus junction in Fig. 1;
Fig. 7 is the side structure schematic diagram of exhaust apparatus junction in Fig. 1;
Fig. 8 is the mounting structure schematic diagram of roller set in Fig. 1.
Embodiment
Below in conjunction with accompanying drawing, embodiment of the present utility model is elaborated, but the multitude of different ways that the utility model can limit and cover according to claim is implemented.
Embodiment 1:
The single seam crossing water test unit of a kind of major diameter bearing pipe, comprise interior set collar 2, top firmware 3, pressure-bearing steel ring 5, water feed apparatus 6, exhaust apparatus 7, independent O-ring seal 4 and the pulley blocks 8 arranging, structural representation when it carries out the hydraulic testing for pipeline 1 as shown in Figure 1, one-piece construction is simplified, easy to use and cost is low.
Described top firmware 3 comprises top board 31, fixed card 33 and fastening bolt 35, described top board 31 is arranged on the inwall of described pressure-bearing steel ring 5, one end of described fastening bolt 35 is arranged in the screw 32 of described top board 31 and fixes by described fixed card 33, the other end is provided with the nut 34 matching with it, as Fig. 2 and Fig. 3.
After pipeline 1 is formed a team, between two pipelines, by flange apparatus, connect, flange apparatus comprises pipeline platen flange 11, pipeline coupling bolt 12, pipeline coupling flange 13 and rubber ring 14 for sealing for tubing joints, refers to Fig. 3, Fig. 5 and Fig. 7, in other accompanying drawings, omits flange apparatus.
Described interior set collar 2 is by the inside at described pressure-bearing steel ring 5 that is fixed of described fastening bolt 35 and nut 34.
Described water feed apparatus 6 comprises the first top board 61, the first sleeve pipe 62 and propulsion system, and described propulsion system are pressure testing machine, between described pressure testing machine and the first sleeve pipe 62, by flexible pipe, is connected, for convenience detach, install and transportation; Described the first top board 61 welding are arranged on the inwall of described pressure-bearing steel ring 5; One end of described the first sleeve pipe 62 is welded on described the first top board 61, and the other end is connected with described propulsion system; On described the first top board 61, O-ring seal 4 and described pressure-bearing steel ring 5, be equipped with the first hole communicating with the inside of described the first sleeve pipe 62; Between described propulsion system and described the first sleeve pipe 62, be provided with tensimeter, the variation of monitor force, refers to Fig. 4 and Fig. 5 when carrying out the hydraulic testing.
Described exhaust apparatus 7 comprises the second top board 71 and the second sleeve pipe 72; Described the second top board 71 is welded on the inwall of described pressure-bearing steel ring 5; One end of described the second sleeve pipe 72 is welded on described the second top board 11, and the other end is provided with packoff 73; On described the second top board 71, O-ring seal 4 and described pressure-bearing steel ring 5, be equipped with the second hole communicating with the inside of described the second sleeve pipe 72, the inwall of wherein said the second sleeve pipe 72 is provided with internal thread, described packoff 73 is the sealing nut with screw rod, and screw rod is provided with the external thread matching with described internal thread, refer to Fig. 6 and Fig. 7.
Described roller set 8 can be along inner-walls of duct to front slide, specifically comprise fixed part 81, fixed bin 82, support member 83, roller shaft 84 and roller 85, described fixed bin 82 is movably fixed on described interior set collar 2 by described fixed part 81, described support member 83 is arranged between described interior set collar 2 and pressure-bearing steel ring 5, and its one end is fixed on described fixed bin 82, described roller shaft 84 is arranged on described support member 83, and described roller 85 is arranged on described roller shaft 84; Described fixed bin 82 is provided with tapped hole, described fixed part 81 is selected the nut with screw rod, and screw rod is provided with the external thread matching with described internal thread, refer to Fig. 8, after the hydraulic testing completes, under the drive of roller set, a whole set of water test unit integral body moves forward carries out the hydraulic testing next time, device conveniently moving is time saving and energy saving, practical.
The material selection rubber of O-ring seal 4 described in above technical scheme; The material selection C shaped steel of described pressure-bearing steel ring 5; The material selection channel-section steel of described interior set collar 2; The material selection steel plate of described top board 31, material easily obtains, and can bring into play its advantage separately, makes package unit practical.
Utilize the single seam crossing water test unit of above-mentioned major diameter bearing pipe to carry out hydraulic test method, comprise the following steps:
The first step: by 1 group pair, pipeline, after passed examination, O-ring seal 4 is close to the interface inner wall outside of pipeline group, wherein said passed examination refer to foreign in pipeline, pipe joint without breakage and rubber ring without distortion and without fracture;
Second step: pressure-bearing steel ring 5 is held on described O-ring seal 4 to the top position of pressure-bearing steel ring 5 positions that are provided with exhaust apparatus 7 in pipeline 1 inwall;
The 3rd step: rotate the nut 34 of top firmware 3 on described interior set collar 2, described pressure-bearing steel ring 5 is pressed on to the outside of described O-ring seal 4, described O-ring seal 4 forms enclosed cavity 15 with pipe joint place;
The 4th step: by propulsion system to the interior water filling of enclosed cavity 15, open packoff 73 simultaneously, after filling with water in described sealed cavity, close packoff 73, carry out the hydraulic testing, be specially by the pressure in propulsion system classification rising enclosed cavity 15, when manometric reading reaches default definite value, observe and record its voltage drop value, detect pipeline seam quality;
The 5th step: after the hydraulic testing completes, remove water test unit, being specially rotary nut 34 makes top board 31 on top firmware 3 leave the inner wall surface of described pressure-bearing steel ring 5, take out O-ring seal 4, again described pressure-bearing steel ring 5 and described interior set collar 2 colligations are integral, nut in fixed part 81 is tightened, pressure-bearing steel ring 5 after colligation is integral and interior set collar 2 are fixed in roller set 8, the pulley 85 of roller set 8 falls on the inwall with pipeline 1, by whole device forward impelling, carry out the check of next road pipeline joint-seam.
Take certain project as example, and in pipeline, through being 2400mm, length of pipe section is seam of every 5m, and total length is 85km.The pressure testing of single mouth of pipe seam crossing needs the about 3kg of water.Table 1 is the comparative analysis table of prior art and the utility model technology:
Table 1 prior art and the utility model technology hydraulic testing parameter table of comparisons
Apply the hydraulic test method that the single seam crossing water test unit of major diameter bearing pipe of the present utility model carries out, obtain following good effect: (1) device one-piece construction is simplified, and construction is simple, convenient carrying; (2) single seam crossing carries out the hydraulic testing, saving water resource greatly, save pour water, water discharge time, energy-conserving and environment-protective; (3) by the pressure testing of pipeline single port, test tube pipeline joint quality, guarantee pipeline backfill or hidden after when without violation operation, can not do over again or process again, practical.
The utility model is applicable to the hydraulic testing that has the rigidity joint pressure conduit single joint of pressing single rubber ring flexible joint that diameter is greater than 800mm, also can be used for the length of other rigidity joint pressure conduit that inwall is smooth, smooth apart from the hydraulic testing field of pressure conduit single joint simultaneously.
The foregoing is only preferred embodiment of the present utility model, be not limited to the utility model, for a person skilled in the art, the utility model can have various modifications and variations.All within spirit of the present utility model and principle, any modification of doing, be equal to replacement, improvement etc., within all should being included in protection domain of the present utility model.

Claims (6)

1. the single seam crossing water test unit of major diameter bearing pipe, is characterized in that: comprise interior set collar (2), top firmware (3), pressure-bearing steel ring (5), water feed apparatus (6), exhaust apparatus (7) and the independent O-ring seal (4) arranging;
Described top firmware (3) comprises top board (31) and fastening bolt (35), described top board (31) is arranged on the inwall of described pressure-bearing steel ring (5), it is upper that one end of described fastening bolt (35) is arranged on described top board (31), and the other end is provided with the nut (34) matching with it;
Described interior set collar (2) is fixed on the inside of described pressure-bearing steel ring (5) by fastening bolt (35) and nut (34);
Described water feed apparatus (6) comprises the first top board (61), the first sleeve pipe (62) and propulsion system; Described the first top board (61) is fixedly installed on the inwall of described pressure-bearing steel ring (5); It is upper that one end of described the first sleeve pipe (62) is fixed on described the first top board (61), and the other end is connected with described propulsion system; On described the first top board (61), O-ring seal (4) and described pressure-bearing steel ring (5), be equipped with the first hole communicating with the inside of described the first sleeve pipe (62); Between described propulsion system and described the first sleeve pipe (62), be provided with tensimeter;
Described exhaust apparatus (7) comprises the second top board (71) and the second sleeve pipe (72); Described the second top board (71) is fixedly installed on the inwall of described pressure-bearing steel ring (5); It is upper that one end of described the second sleeve pipe (72) is fixed on described the second top board (11), and the other end is provided with packoff (73); On described the second top board (71), O-ring seal (4) and described pressure-bearing steel ring (5), be equipped with the second hole communicating with the inside of described the second sleeve pipe (72).
2. the single seam crossing water test unit of major diameter bearing pipe according to claim 1, is characterized in that: described propulsion system are pressure testing machine, between described pressure testing machine and described the first sleeve pipe (62), by flexible pipe, is connected.
3. the single seam crossing water test unit of major diameter bearing pipe according to claim 1, it is characterized in that: the inwall of described the second sleeve pipe (72) is provided with internal thread, described packoff (73) is the sealing nut with screw rod, and screw rod is provided with the external thread matching with described internal thread.
4. the single seam crossing water test unit of major diameter bearing pipe according to claim 1, is characterized in that: described the first top board (61) and the second top board (71) are all welded on the inwall of described pressure-bearing steel ring (5); One end of described the first sleeve pipe (62) is welded on the first top board (61); One end of described the second sleeve pipe (72) is welded on the second top board (11).
5. the single seam crossing water test unit of major diameter bearing pipe according to claim 1, is characterized in that: the material of described O-ring seal (4) is rubber; The material of described pressure-bearing steel ring (5) is C shaped steel; The material of described interior set collar (2) is channel-section steel; The material of described top board (31) is steel plate.
6. the single seam crossing water test unit of major diameter bearing pipe according to claim 1, it is characterized in that: also comprise roller set (8), described roller set (8) comprises fixed part (81), fixed bin (82), support member (83), roller shaft (84) and roller (85), described fixed bin (82) is movably fixed on described interior set collar (2) by described fixed part (81), described support member (83) is arranged between described interior set collar (2) and pressure-bearing steel ring (5), and its one end is fixed on described fixed bin (82), described roller shaft (84) is arranged on described support member (83), described roller (85) is arranged on described roller shaft (84).
CN201320728113.4U 2013-11-18 2013-11-18 Device for testing hydraulic pressure of single joint of large-diameter pressure bearing pipeline Withdrawn - After Issue CN203551400U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201320728113.4U CN203551400U (en) 2013-11-18 2013-11-18 Device for testing hydraulic pressure of single joint of large-diameter pressure bearing pipeline

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201320728113.4U CN203551400U (en) 2013-11-18 2013-11-18 Device for testing hydraulic pressure of single joint of large-diameter pressure bearing pipeline

Publications (1)

Publication Number Publication Date
CN203551400U true CN203551400U (en) 2014-04-16

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CN201320728113.4U Withdrawn - After Issue CN203551400U (en) 2013-11-18 2013-11-18 Device for testing hydraulic pressure of single joint of large-diameter pressure bearing pipeline

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103558090A (en) * 2013-11-18 2014-02-05 中建五局工业设备安装有限公司 Water pressure testing device and method for single joint of major-diameter pressure-bearing pipeline

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103558090A (en) * 2013-11-18 2014-02-05 中建五局工业设备安装有限公司 Water pressure testing device and method for single joint of major-diameter pressure-bearing pipeline
CN103558090B (en) * 2013-11-18 2015-12-09 中建五局工业设备安装有限公司 The single seam crossing water test unit of major diameter bearing pipe and hydraulic test method

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GR01 Patent grant
C25 Abandonment of patent right or utility model to avoid double patenting
AV01 Patent right actively abandoned

Granted publication date: 20140416

Effective date of abandoning: 20151209