CN207064958U - Realize not cut off the water on water supply line and change the device of pipeline section or valve - Google Patents
Realize not cut off the water on water supply line and change the device of pipeline section or valve Download PDFInfo
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- CN207064958U CN207064958U CN201720704040.3U CN201720704040U CN207064958U CN 207064958 U CN207064958 U CN 207064958U CN 201720704040 U CN201720704040 U CN 201720704040U CN 207064958 U CN207064958 U CN 207064958U
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 116
- 230000008859 change Effects 0.000 title abstract description 17
- 238000007789 sealing Methods 0.000 claims abstract description 45
- 239000000725 suspension Substances 0.000 claims description 11
- 230000007246 mechanism Effects 0.000 claims description 9
- 238000012360 testing method Methods 0.000 claims description 8
- 230000000007 visual effect Effects 0.000 claims description 7
- 230000007704 transition Effects 0.000 claims description 4
- 238000005520 cutting process Methods 0.000 abstract description 56
- 239000008400 supply water Substances 0.000 abstract description 2
- 238000009434 installation Methods 0.000 description 21
- 108010066114 cabin-2 Proteins 0.000 description 20
- 230000006872 improvement Effects 0.000 description 16
- 238000000034 method Methods 0.000 description 12
- 239000000306 component Substances 0.000 description 11
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 10
- 238000003466 welding Methods 0.000 description 9
- 230000001360 synchronised effect Effects 0.000 description 7
- 229910052742 iron Inorganic materials 0.000 description 5
- 230000001954 sterilising effect Effects 0.000 description 5
- 238000004140 cleaning Methods 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 238000010276 construction Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000005259 measurement Methods 0.000 description 3
- 238000005498 polishing Methods 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000003032 molecular docking Methods 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- 238000004659 sterilization and disinfection Methods 0.000 description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010924 continuous production Methods 0.000 description 1
- 239000008358 core component Substances 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000011010 flushing procedure Methods 0.000 description 1
- 230000002262 irrigation Effects 0.000 description 1
- 238000003973 irrigation Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 238000010079 rubber tapping Methods 0.000 description 1
- 229910000679 solder Inorganic materials 0.000 description 1
- 239000003643 water by type Substances 0.000 description 1
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- Branch Pipes, Bends, And The Like (AREA)
Abstract
The utility model provides a kind of device that do not cut off the water replacing pipeline section or valve are realized on water supply line, and it includes connecting pipe, and the internal diameter at the connecting pipe both ends is not less than the external diameter of former water supply line；The connecting pipe includes the first pipe fitting, the second pipe fitting and limit component, one end of second pipe fitting is set in the first pipe fitting, first pipe fitting, the sealing of the second pipe fitting are slidably connected, pipeline section to be replaced or valve both ends are provided with pipeline flanges on the water supply line, the structure of the limit component is agreed with pipeline flanges, and first pipe fitting, the second pipe fitting are provided with pipe fitting flange disk corresponding with the pipeline flanges.Using the technical solution of the utility model, it can be used for realizing not cutting off the water and change local pipeline section or valve, while uninterrupted supply water is ensured, original water supply line will not be open or be caused structural damage on other, and the invertible operation to connecting pipe dismounting can be realized, it is easy to carry out the replacing of pipeline section, valve again.
Description
Technical field
The utility model belongs to pipe-line maintenance technical field, more particularly to one kind realizes replacing of not cutting off the water on water supply line
The device of pipeline section or valve.
Background technology
Public supply mains are newly-built, move the replacing for touching valve on mouth or water supply line for changing pipeline in engineering, also or to
Tubing on operation water supply line is sampled detection, can not all avoid cutting off the water to water supply network.In case of valve is closed not
Sternly, the consequence that scope expands, water stopping time is long, anhydrous available, the water factory's production of user is severely impacted of cutting off the water certainly will be caused,
This can cause bad social influence to the system of appointing national minority hereditary headmen in the Yuan, Ming and Qing Dynasties, in addition by cause resident, manufacturing enterprise direct economic loss；Cut off the water operation,
Such as misoperation during construction, or pipeline in the range of recovering to cut off the water during water flowing cannot be rinsed effectively, will be brought certain
Water quality safety hidden danger, and caliber of cutting off the water is bigger, scope of cutting off the water is bigger, and it is more difficult, complicated that it recovers the operation of water flowing.
With the continuous improvement of resident, manufacturing enterprise to water supply requirement, cut off the water operation this angle from water undertaking,
If accomplishing to cut off the water, scope is minimum, the time is most short, scheme of cutting off the water is optimal, few cut off the water is not cut off the water even, and significant increase is supplied water and looked forward to
The operating efficiency and community service quality of industry.
Existing do not cut off the water changes the method for local pipeline section or valve and is：By way of opening of not cutting off the water, by pipe to be replaced
Section, the both sides of valve carry out pipeline tapping, connection, and stretch into air bag by aperture position, and part both sides to be replaced are blocked up
Water, the water conservancy diversion of water-filling is entered using interim connecting pipe, after treating pipeline section, replacing valve, then interim connecting pipe removed.Should
Theoretical method will destroy to pipeline, and the pipeline section, valve both sides after replacing respectively leave a branch pipe tee connection, and in its method
There is risk in the air bag, its required operating space is larger, cost is higher, and realizes difficulty pole on the problems such as overcoming hydraulic pressure
Greatly.
Utility model content
For above technical problem, realized the utility model discloses one kind on water supply line do not cut off the water change pipeline section or
The device of valve, is realized not cut off the water on water supply line and carries out changing pipeline section or valve, and original water supply line will not be opened
Mouth causes structural damage on other；And the connecting pipe can overcome non-round in certain limit existing for original pipeline
Spend, by means of gyration problem, and then ensure and change, continuous process, and the invertible operation to connecting pipe dismounting can be realized, be easy to
The replacing of pipeline section, valve is carried out again.
On the other hand, the technical solution of the utility model is：
Realize not cut off the water on a kind of water supply line and change the device of pipeline section or valve, it includes connecting pipe, the connection
The internal diameter at pipe fitting both ends is not less than the external diameter of former water supply line；The connecting pipe includes the first pipe fitting, the second pipe fitting and spacing
Component, one end of second pipe fitting are set in the first pipe fitting, and first pipe fitting, the second pipe fitting are slidably connected, the confession
Pipeline section to be replaced or valve both ends are provided with pipeline flanges, structure and the pipeline flanges contract of the limit component on waterpipe
Close, first pipe fitting, the second pipe fitting are provided with pipe fitting flange disk corresponding with the pipeline flanges.The connecting pipe two
The internal diameter at end is not less than the external diameter of former water supply line, is because of the pipe after pipe cutting beveling and cutting pipeline, welded on pipeline
Certain surplus is left on the inside of road ring flange, i.e., can not be trimmed with ring flange, so the both ends internal diameter of connecting pipe is than original
The external diameter of water supply line is big, and two of internal diameter than effect that external diameter is beaten are to overcome out-of-roundness existing for former pipeline and by means of gyration
Problem.
As further improvement of the utility model, the second pipe fitting oral area is provided with back-up ring, the mouth of first pipe fitting
Portion is provided with the first sealing ring, and the afterbody of the second pipe fitting is provided with the second sealing ring, and the afterbody of first pipe fitting is provided with the first pipe fitting
Ring flange, the afterbody of second pipe fitting are provided with the second pipe fitting flange disk, are provided between the back-up ring and the first pipe fitting flange disk
3rd sealing ring；The position of fixing hole and the position pair of fixing hole on the pipeline flanges of corresponding side on the pipe fitting flange disk
Should.
As further improvement of the utility model, during unencryption seal, after first pipe fitting and the second pipe fitting slide
Total length not less than the distance between on the inside of two pipeline flanges installed on pipeline；It is first sealing ring, second close
The thickness sum of seal is not more than the thickness of the 3rd sealing ring.
As further improvement of the utility model, during unencryption seal, first pipe fitting is relative with the second pipe fitting sliding
Ultimate range after dynamic can be more than the distance between pipeline flanges, can be equal to the distance between pipeline flanges, also may be used
To be slightly smaller than the distance between pipeline flanges.Ultimate range after the first pipe fitting is relative with the second pipe fitting to be slided can be more than
The distance between pipeline flanges, then the thickness of the 3rd sealing ring is more than the first sealing ring, the thickness sum of the second sealing ring.
If the ultimate range after the slip relative with the second pipe fitting of the first pipe fitting is equal to the distance between pipeline flanges, then the 3rd is close
The thickness of seal is equal to the first sealing ring, the thickness sum of the second sealing ring.Slided if the first pipe fitting is relative with the second pipe fitting
Ultimate range afterwards is less than the distance between pipeline flanges, then the thickness of the 3rd sealing ring is less than the first sealing ring, second
The thickness sum of sealing ring.
As further improvement of the utility model, the connecting pipe is provided with suspension ring.
As further improvement of the utility model, the first pipe fitting flange disk and back-up ring are provided with the bolt of position correspondence
Hole.So, after installation is fixed, will can be bolted to connection between the first pipe fitting flange disk and back-up ring, it is easy for installation.
Being provided with as further improvement of the utility model, between first pipe fitting and the second pipe fitting makes the first pipe fitting
The drive mechanism slided relative to the second pipe fitting, the drive mechanism is air pressure or hydraulic synchronization jack.
As further improvement of the utility model, it is described realize not cut off the water on water supply line change pipeline section or valve
Device includes seal for pipe joints cabin, and the seal for pipe joints cabin is divided into upper sealed compartment and lower sealed compartment, the feed pipe by slide valve
Road passes through lower sealed compartment, and the pipeline flanges of pipeline both sides are located in lower sealed compartment；The upper sealed compartment and lower sealing pass through upper
The connecting tube connection of lower cabin；The bottom in the seal for pipe joints cabin is provided with discharge outlet；The seal for pipe joints cabin seals with water supply line.
As further improvement of the utility model, when the both ends of connecting pipe are connected with the pipeline flanges of both sides respectively
When, the side of the 3rd sealing ring contacts with back-up ring, and other side contacts with the inwall of the first pipe fitting flange disk.
As further improvement of the utility model, the seal for pipe joints cabin by rubber sealing or passes through with water supply line
Transition fitting carries out welded seal.
As further improvement of the utility model, the seal for pipe joints cabin is provided with visual flange window.Further,
The seal for pipe joints cabin is provided with visual flange window；It is convenient for observing, it is convenient when lifting to observe, while connecting tube is installed
Part, it is convenient to observe position.
As further improvement of the utility model, lifting handwheel is additionally provided with the top of the seal for pipe joints cabin.
As further improvement of the utility model, the top in the seal for pipe joints cabin is provided with water filling pressure testing mouth and exhaust
Mouthful.
As further improvement of the utility model, sealed compartment cover plate, the sealed compartment are provided with the top of the upper sealed compartment
Cover plate penetrates hole provided with power line.
As further improvement of the utility model, the bottom in the seal for pipe joints cabin is provided with positioning screw rod and positioning hand
Wheel.
As further improvement of the utility model, the cabin connecting tube up and down is provided with ball valve.
The method do not cut off the water and change pipeline section or valve is realized on water supply line using said apparatus, is comprised the following steps：
Step S1, in the both sides pipe laying ring flange of pipeline or valve to be replaced, and set between pipeline flanges
Put two pipe cutting groove machines, and make pipe cutting groove machine respectively positioned at both sides pipeline flanges inner side；
Step S2, the pipe laying sealed compartment at pipeline or valve to be replaced, the seal for pipe joints cabin and water supply line
It is tightly connected；The seal for pipe joints cabin is divided into upper sealed compartment and lower sealed compartment by slide valve, and the water supply line passes through down close
Batten down, and pipeline flanges, pipe cutting groove machine is located in lower sealed compartment；Installed on pipeline or valve to be replaced
Hang component；The lower sealed compartment is provided with discharge outlet；Sealed compartment cover plate is provided with the top of the upper sealed compartment, the sealed compartment cover plate is set
There is pipeline hoist rope, the boom hoisting being connected with the pipeline hoist rope, the lifting are provided with the outside of the sealed compartment cover plate
Device is connected by pipeline hoist rope with hoisting component；Wherein, the sealed compartment cover plate penetrates hole provided with power line, is used for
Introduce power line and provide driving force to pipe cutting groove machine, jack.
Step S3, the pipe cutting groove machine of side is opened, pipeline one side is cut, pipeline is carried out after the completion of cutting
Groove；
Step S4, the pipe cutting groove machine of opposite side is opened, cut, groove；
Step S5, the pipeline of replacing or valve are promoted to more than slide valve by boom hoisting, are located at sealing
In cabin, slide valve is closed；Sealed compartment cover plate is opened, pipeline section and pipe cutting groove machine are taken out；
Step S6, connecting pipe is put into upper sealed compartment, wherein, the both ends of the connecting pipe include and the pipe
The corresponding connecting interface of road ring flange and limit component, the connecting pipe include the first pipe fitting and the second pipe fitting；Described
One end of two pipe fittings is inserted in the first pipe fitting, and is slidably connected with the first pipe fitting, is set between first pipe fitting and the second pipe fitting
There is the drive mechanism for making the first pipe fitting be slided relative to the second pipe fitting, the drive mechanism is air pressure or hydraulic jack, enters one
Step, the drive mechanism is air pressure or hydraulic synchronization jack；Sealed compartment cover plate is closed, slide valve is opened, by connecting pipe
Installation site is placed into by boom hoisting, opening drive mechanism makes the first pipe fitting be slided relative to the second pipe fitting, and makes connection
The both ends of pipe fitting are connected with the pipeline flanges of both sides respectively；Seal for pipe joints cabin is removed in the case where keeping the active force of drive mechanism,
Pipeline flanges of the pipe fitting flange disk at the both ends of connecting pipe respectively with both sides are fixed.
Further, step S3 the water filling into seal for pipe joints cabin, makes pipeline before the pipe cutting groove machine of side is opened
Hydraulic pressure in sealed compartment approaches with water supply line pressure of supply water.
Further, after step S6, in addition to the junction of the first pipe fitting and the second pipe fitting welded.
Further, after step S6, in addition to will be fixedly connected between the first pipe fitting and the second pipe fitting, i.e., the first pipe
After part and the second pipe fitting are fixed with the pipeline flanges of both sides respectively after sliding, it will lead between the first pipe fitting and the second pipe fitting
Bolt is crossed to be fixedly connected.
Further, in step S3 and step S4, when pipe cutting gap produces, the draining of pipeline sealed compartment is opened
Mouthful, iron filings are discharged, close discharge outlet.
Further, in step S3, pipeline one side is cut, after groove, in addition to will be treated more by boom hoisting
The pipeline or valve changed tenses.
Further, before step S1, in addition to pipeline section to be replaced and peripheral conduits outer surface are polished and cleaned
Sterilization.
Further, when the both ends of connecting pipe are attached with the pipeline flanges of both sides respectively, first pipe
Part ring flange is connected with close pipeline flanges, the pipeline flanges connection that the second pipe fitting flange disk is adjacent to.It is excellent
Choosing, the first pipe fitting flange disk is bolted with close pipeline flanges, the first pipe fitting flange disk and its
Close pipeline flanges are bolted.
Preferably, the first pipe fitting flange disk is bolted with back-up ring.
Compared with prior art, the beneficial effects of the utility model are：
, can be by using pipeline underwater operation bevel cut machine in seal for pipe joints using the technical solution of the utility model
Cutting pipeline is carried out in cabin, cutting position then is arrived into connecting pipe change, using connecting pipe of the present utility model, in pipeline
Realize not cutting off the water by mechanical means in sealed compartment and change local pipeline section or valve, this method uninterruptedly supplies water same in guarantee
When, original water supply line will not be open or be caused structural damage on other, improve efficiency, reduce cost.If
It is longer or change the facility such as valve to change pipeline section, the sealed compartment of corresponding length need only be customized and by autocratic connecting pipe and valve
Connection.Moreover, very easily realizing contrary operation, it is easy to carry out the replacing of pipeline section, valve again.
Brief description of the drawings
Fig. 1 is a kind of stereogram of the connecting pipe of embodiment of the utility model.
Fig. 2 is a kind of front view of the connecting pipe of embodiment of the utility model.
Fig. 3 is a kind of side view of the connecting pipe of embodiment of the utility model.
Fig. 4 be Fig. 2 I-I to profile.
Fig. 5 be Fig. 4 II-II to profile.
Fig. 6 is a kind of structural representation in the seal for pipe joints cabin of embodiment of the utility model.
Fig. 7 is a kind of pipe laying ring flange of embodiment of the utility model and the schematic diagram of pipe cutting groove machine.
Fig. 8 is a kind of schematic diagram of the connecting pipe installation jack of embodiment of the utility model.
Fig. 9 is structural representation when a kind of connecting pipe of embodiment of the utility model is put into.
Figure 10 is the structural representation that a kind of connecting pipe of embodiment of the utility model is connected with pipeline flanges.
Reference includes：1- connecting pipes, the pipe fittings of 11- first, the pipe fittings of 12- second, 13- limit components, 14- suspension ring,
15- back-up rings, the sealing rings of 16- first, the sealing rings of 17- second, the sealing rings of 18- the 3rd, 19- pipe fitting flange disks, the pipe fittings of 191- first
Ring flange, 192- the second pipe fitting flange disks；2- seals for pipe joints cabin, the upper sealed compartments of 21-, sealed compartment under 22-, 23- discharge outlet, 24-
Visual flange window, 25- lifting handwheels, 26- water filling pressure testing mouths, 27- exhaust outlets, 28- positioning screw rods, 29- positioning handwheels, 30-
Sealed compartment top blind flange, above and below 31- cabins connecting tube, 3- pipeline flanges, 4- pipe cutting groove machines, 41- blade assemblies, 5-
Power line connector, 6- pipeline suspension ring, 7- jack, 8- slide valves, 9- power lines penetrate mouth, 100- pipelines.
Embodiment
Preferably embodiment of the present utility model is described in further detail below.
It is a kind of realize not cut off the water on water supply line change the device of pipeline section or valve, it include autocratic connecting pipe 1,
Seal for pipe joints cabin 2 and other equipment, part, as shown in Fig. 1 ~ Figure 10, are introduced one by one below.
1. connecting pipe
Connecting pipe 1 is not cut off the water to change pipeline section, the core component of valve, and the internal diameter at the both ends of connecting pipe 1 is than former
The external diameter of pipeline 100 is big, can have certain out-of-roundness in original pipeline 100, by means of gyration in the case of, meet pipeline connect need
Ask.
As shown in Fig. 1 ~ Fig. 5, the internal diameter at the both ends of connecting pipe 1 is not less than the external diameter of former water supply line 100；The company
Jointed tubular workpieces 1 include the first pipe fitting 11, the second pipe fitting 12, limit component 13 and suspension ring 14, and one end of second pipe fitting 12 is arranged
In the first pipe fitting 11, first pipe fitting 11, the second pipe fitting 12 are slidably connected, the structure and tube method of the limit component 13
Blue disk 3 agrees with；The connecting pipe 1 is provided with suspension ring 14.Extreme length after first pipe fitting 11, the slip of the second pipe fitting 12
The distance between pipeline flanges 3 are equal, and the oral area of second pipe fitting 12 is provided with back-up ring 15, the mouth of first pipe fitting 11
Portion is provided with the first sealing ring 16, and the afterbody of the second pipe fitting 12 is provided with the second sealing ring 17, the pipe fitting 11 of back-up ring 15 and first
The 3rd sealing ring 18 is provided between afterbody；Thickness sum and the 3rd sealing ring of first sealing ring 16, the second sealing ring 17
18 thickness is identical；Preferably, first sealing ring 16, the second sealing ring 17, the 3rd sealing ring 18 be respectively adopted bonding or
Stronger connected mode is connected with connecting pipe 1.The limit component 13 is respectively provided at the front portion of the first pipe fitting 11, the second pipe
On the afterbody of part 12.The effect of limit component 13 is, when connecting pipe 1 is docked with pipeline 100, with the pipe welded on pipeline 100
Road ring flange 3 agrees with, to ensure that bolt hole aligns.Suspension ring 14 are used for the installation lifting and transport of connecting pipe 1.First pipe
Part 11, the afterbody of the second pipe fitting 12 are respectively equipped with pipe fitting flange disk 19.The position of fixing hole and phase on the pipe fitting flange disk 19
Answer the position correspondence of fixing hole on the pipeline flanges 3 of side.The afterbody of first pipe fitting 11 is provided with the first pipe fitting flange disk
191, the afterbody of second pipe fitting 12 is provided with the second pipe fitting flange disk 192.
2. seal for pipe joints cabin 2
As shown in fig. 6, seal for pipe joints cabin 2 is to realize not cut off the water to change pipeline section, the operating main body of valve, its effect is to incite somebody to action
100 position to be replaced of pipeline is wrapped in seal for pipe joints cabin 2, and the cutting of cabin interior conduit 100, connection are realized by operating out of my cabin
Work.Rubber sealing is used between seal for pipe joints cabin 2 and pipeline 100, also or using transition fitting welded seal is carried out, to ensure
Bonding strength.Relevant sealed compartment is described as follows：
The seal for pipe joints cabin 2 is divided for upper sealed compartment 21 and lower sealed compartment 22 by slide valve 8, the intensity of slide valve 8, should
Corresponding thickness and bearing requirements are met according to specific length and width size.The pipeline 100 passes through lower sealed compartment 22；It is described close
Batten down 21 and lower sealed compartment 22 are connected by upper and lower cabin connecting tube 31, and the upper and lower cabin connecting tube 31 is controlled by ball valve, with
It is easy to new pipe fitting to be put into water filling and the hydraulic balance of upper sealed compartment 21 and lower sealed compartment 22 in preceding upper cabin, and ensures slide valve 8
Unlatching it is smooth, upper sealed compartment 21 and the lower hydraulic pressure of sealed compartment 22 difference larger can not open slide valve 8.
The bottom in the seal for pipe joints cabin 2 is provided with discharge outlet 23, its act on be discharge line 100 cutting produce iron filings and its
His dewatering needs.The seal for pipe joints cabin 2 and pipeline 100 seal by rubber sealing or by transition fitting weld close
Envelope.
The seal for pipe joints cabin 2 is provided with visual flange window 24；The visual flange window 24 be quartz glass etc. it is transparent,
Pressure-resistant material, it is pressed under flange plate, is installed on seal for pipe joints cabin 2 by pad.The window, which must be laid on sealed compartment, to be advantageous to
Observation pipeline 100 is cut, the position that pipeline 100 connects.
The bottom in the seal for pipe joints cabin 2 is provided with discharge outlet 23, its act on be discharge line cutting produce iron filings and other
Dewatering needs.The top of seal for pipe joints cabin 2 is provided with sealed compartment top blind flange 30.It is additionally provided with the sealed compartment top blind flange 30
Lifting handwheel 25, the rope of the lower section of the lifting connection sealed compartment of handwheel 25 top blind flange 30, for the pipeline section after lifting cutting and newly
Pipe fitting, its screw rod pass through the part of gear drive similar pulley in cabin.The top in the seal for pipe joints cabin 2 is provided with water filling pressure testing
Mouthfuls 26 and exhaust outlet 27, the sealed compartment cover plate 30 penetrates hole 9 provided with power line, the water filling pressure testing mouth 26 in seal for pipe joints cabin 2,
Also pressure gauge can be connected, monitors hydraulic pressure in sealed compartment.
The bottom in the seal for pipe joints cabin 2 is provided with positioning screw rod 28 and positioning handwheel 29, and its principle is led to similar to rising stem (RS.) valve
Hand wheel rotating is crossed, screw rod inlet and outlet piping sealed compartment 2 can be achieved, in order in the case of turbulent water, make the pipeline after cutting
100 smooth liftings and the smooth of new pipe fitting are put into.
3. the equipment and accessory installed on pipeline
As shown in fig. 7, it includes pipeline flanges 3, pipe cutting groove machine 4, power line connector 5 and pipeline suspension ring 6, pipe
Road ring flange 3 amounts to 2, and its size is corresponding with the pipe fitting flange disk 19 in the connecting pipe 1 of autocracy.The pipe cutting slope
Mouth machine 4 installs blade assembly 41, there is 2 groups of blade on every pipe cutting groove machine.Pipe cutting groove machine 4 is opened and closed
When closing, blade stop place is symmetrical with the both sides of pipeline 100.
Before pipe laying sealed compartment 2, must on pipeline 100 corresponding site welded pipe line ring flange 3, pipeline suspension ring 6, and
Installation, debugging pipe cutting groove machine 4.
4. connecting pipe 1 and the connection of pipeline 100
As shown in Fig. 8 ~ Figure 10, connecting pipe 1 and the connection of pipeline 100 are to pass through synchronous hydraulic（Pneumatically）Jack 7 is real
Existing.Synchronous hydraulic（Pneumatically）Jack 7 is installed between two pipe fitting flange disks 19 in connecting pipe 1, and its quantity is according to pipe
Footpath size determines（The generally half of flange bolt hole quantity）, with the bolt hole of the pipe fitting flange disk 19 of connecting pipe 1 every position,
It is symmetrically installed.
By opening synchronous jack 7, it is set slowly to run, the first pipe fitting 11 and the second pipe fitting 12 of connecting pipe 1 are made
Slowly slide.Total length after its slip of connecting pipe 1 is equal between the inner side of two pipeline flanges 3 installed on pipeline 100
Distance；And the thickness sum of autocratic both ends the first sealing ring 16 of connecting pipe 1 and the second sealing ring 17 is close equal to centre the 3rd
The thickness of seal 18.After autocratic connecting pipe 1 is slided in place, under the active force of synchronous jack 7, mounting flange bolt.
When the both ends of connecting pipe 1 are connected with the pipeline flanges 3 of both sides respectively, side and the back-up ring 15 of the 3rd sealing ring 18
Contact, other side contact with the inwall of the first pipe fitting flange disk 191；And the first pipe fitting flange disk 191 and close pipe
Road ring flange 3 is bolted, and the pipeline flanges that the second pipe fitting flange disk 192 is adjacent to are bolted.
For the X positions connected between the first pipe fitting flange disk 191 and the second pipe fitting 12, then carry out annular solder.Also may be used
So that the first pipe fitting flange disk 191 and back-up ring 15 are previously provided with into corresponding bolt hole, both are bolted.
Water supply line is carried out using the above-mentioned device for realizing do not cut off the water replacing pipeline section or valve on water supply line not cut off the water
The key step for changing local pipeline section has：Welding, bevel cut machine and the sealing of the accessory such as pipeline polishing and cleaning and sterilizing, flange
The installation in cabin, the cutting of pipeline, being put into of the taking-up of old pipeline section and new pipe fitting, the connection of pipeline.Concrete operations are as follows：
1. pipeline is polished and cleaning and sterilizing
Because all processes that follow-up pipeline section is changed are carried out in confined space and under conditions of continuous water supply, to ensure
Water supply quality safety, it is ensured that equipment and pipe fitting installation, welding consolidate, and must enter in advance to pipeline section to be replaced and peripheral conduits outer surface
Row polishing and cleaning and sterilizing.
2. pipeline out-of-roundness, pipeline measure by means of gyration
The polishing at construction operation position and cleaning and sterilizing work after the completion of, carry out to construction operation position pipeline out-of-roundness,
Pipeline borrows the measurement work of gyration, to ensure that the installation of the equipment such as follow-up cutting machine is smooth；And according to measurement result, Method of Checking
Blue, the autocratic size of connecting pipe 1, it is ensured that former pipeline out-of-roundness, by means of gyration within the tolerance that it is installed.Typically
In the case of, it is believed that more small-bore pipeline（It is recommended that DN400 and following pipeline）It is not necessary to carry out out-of-roundness, the measurement by means of gyration,
Need only be in welded pipe line ring flange 3, it is ensured that its installation meets following requirement.
3. the welding of the grade accessory of pipeline flanges 3 and the installation of pipe cutting groove machine
The welding position of two pipeline flanges 3 is determined with the new spoolpiece size length finally installed, it is necessary to strict
Row welding again behind position is determined according to relevant length requirement, and two planes where ensuring two flange plates after welding respectively
It is parallel, to ensure follow-up screw, nut docking in place；The welding position of two pipeline suspension ring 6 is in order to lifting by crane pipeline section to be replaced
Laid for principle, welding position must be as far as possible symmetrical.
Two pipe cutting groove machines 4 must choose corresponding model according to diameter, the wall thickness of pipeline, and non-round according to pipeline
Degree carries out adjustment to cutting blade.The installation position of bevel cut machine must be respectively close proximity to two welded flanges, to ensure
New pipeline section installation is smooth.
4. the installation in seal for pipe joints cabin 2
（1）Seal for pipe joints cabin 2 install before, must respectively again recheck pipeline flanges 3, pipe cutting groove machine 4 welding,
Installation site and intensity meet to require.
（2）Should be using bottom-top as order, piece by piece each part of pipe laying sealed compartment 2.
（3）Before the top blind flange installation of seal for pipe joints cabin 2, the hydraulic pressure of palpus pipe laying bevel cut machine 4（Air pressure）Jack
Power line and pipeline hoist rope, the power that power line is penetrated outside mouth 9 and sealed compartment by the power line on sealed compartment cover plate
Stand connection, power line penetrates mouth 9 and is provided with containment member, and sealed compartment cover plate inwall has the corresponding connecting interface of hoist rope, installation
When it is ensured that installation, connection fastening.
（4）To avoid water supply quality in Renewal process from being secondarily contaminated, it is ensured that water supply quality safety, sealed compartment top cover
Before plate installation, the irrigation and disinfection of cabin interior and top blind flange is carried out again, utilizes 23 pairs of flushing waters of sealed compartment bottom discharge mouth
Discharged.
（5）After closing discharge outlet 23, installation sealed compartment cover plate, water filling and pressure test, test pressure are carried out to sealed compartment
It should be greater than water supply line hydraulic pressure, it is proposed that be 1.5 times of water supply line hydraulic pressure.After sealed compartment pressure testing is qualified, water in pressure release to sealed compartment
Pressure and the close level of pipe water supply pressure.In next step, you can carry out the cutting of pipeline.
5. the cutting and taking-up of pipeline
Handwheel 25 is lifted by crane by operating sealed compartment, after tension is connected to the rope on pipeline suspension ring 6, opens pipeline one side one
Platform pipe cutting groove machine 4, pipeline one side is cut, after the completion of to be cut, continue the groove of pipeline, be i.e. increase should
The width of side ducts cutting gap.When pipe cutting gap produces, the sealed compartment bottom side discharge outlet 23 should be slowly opened, most
Big degree discharges iron filings.
After the completion of the unilateral pipe cutting of pipe cutting groove machine 4, groove, operation lifting handwheel 25 tenses pipeline again,
Row opens another pipe cutting groove machine 4 again, carries out cutting, the groove of pipeline opposite side.Meanwhile it should slowly open sealed compartment
All discharge outlet 23 in bottom, iron filings are discharged.
After the completion of pipe cutting, cutting machine blade stops at pipeline both sides, handwheel 25 can be lifted by crane by operating, after making cutting
Pipeline section smoothly take out.
During by lifting by crane the pipeline section under the lifting cutting of handwheel 25, in case of caused pipeline section and original pipeline card because of current scour
The situation of position, it is adjusted by 4 positioning handwheels of screw rod 28 on sealed compartment, the pipeline section after cutting is smoothly promoted to flashboard
After valve more than 8, slide valve 8 is closed, sealed compartment top blind flange 30 can be now opened, pipeline section and pipe cutting groove machine 4 is taken out.
6. new pipe fitting i.e. connecting pipe 1 are put into
Connecting pipe 1 be put into be pipeline section take out inverse process, it is specific as follows：
（1）Synchronous hydraulic（Air pressure）Jack 7 should be installed in the connecting pipe 1 of autocracy in advance, and power transmission line is driven
The line of force penetrates mouth 9 and penetrated below sealed compartment cover plate, carries out power line and penetrates mouth 9 and seals, and access jack, power station it is corresponding
Interface, and autocratic connecting pipe 1 is suspended to by the top blind flange relevant position of seal for pipe joints cabin 2 by rope.
（2）Sealed compartment top blind flange 30 is installed, water filling is carried out to cabin on sealed compartment by upper and lower cabin connecting tube 31, made
Upper and lower cabin hydraulic pressure is identical.
（3）Sealed compartment slide valve 8 is opened, operation lifting handwheel 25 slowly puts down new pipe fitting, passes through 4 screw rods 28 of transposing
Regulation, the limit component 13 on new pipe fitting and the pipeline flanges 3 on pipeline are agreed with, to ensure that new pipe fitting is managed with former in next step
Road docking is smooth.
6. the connection of pipeline
（1）Slowly open synchronous hydraulic（Air pressure）Jack 7, and observed by the visual flange window 24 of sealed compartment.
After the pressure that synchronous jack 7 is acted in autocratic connecting pipe 1 reaches specified value, make the first pipe fitting 11 relative to second
Pipe fitting 12 slides, and the total length after the pipe fitting 12 of the first pipe fitting 11 and second slides is equal to two tube methods installed on pipeline
The distance between blue inner side of disk 3, and make what is installed on the pipe fitting flange disk 19 and pipeline on the first pipe fitting 11 and the second pipe fitting 12
The position correspondence of pipeline flanges 3, and keep the support force of jack 7.
（2）The discharge outlet 23 on pipeline sealed compartment 2 is slowly opened, observes pressure change in pipeline sealed compartment 2, now, water
Pressure should be rapidly decreased to 0；Water in exhausting pipeline sealed compartment 2, seal for pipe joints cabin 2 is removed, while sealed compartment top blind flange 30 is hanged
Hang（Now because power transmission line is additionally coupled on cover plate）, 4 flange bolts are installed, and ensure bolt installation fastening.
（3）Jack 7 is laid down by platform, meanwhile, other 4 flange bolts are installed one by one；After bolt fastening, all dresses are removed
Put.
（4）To prevent pipeline from causing the leak of X positions due to expanding with heat and contract with cold in the future, the position must be welded.
The all processes of local pipeline section on water supply line are changed to realize not cut off the water above, if it is longer or more to change pipeline section
The facilities such as valve are changed, the sealed compartment of corresponding length need only be customized and be connected autocratic connecting pipe with valve.
Above content is to combine specific preferred embodiment further detailed description of the utility model, it is impossible to
Assert that specific implementation of the present utility model is confined to these explanations.For the ordinary skill of the utility model art
For personnel, without departing from the concept of the premise utility, some simple deduction or replace can also be made, should all be regarded
To belong to the scope of protection of the utility model.
Claims (10)
- A kind of 1. device that do not cut off the water replacing pipeline section or valve are realized on water supply line, it is characterised in that：It includes connecting tube Part, the internal diameter at the connecting pipe both ends are not less than the external diameter of former water supply line；The connecting pipe includes the first pipe fitting, second Pipe fitting and limit component, one end of second pipe fitting are set in the first pipe fitting, and first pipe fitting, the second pipe fitting, which slide, to be connected Connect, pipeline section to be replaced or valve both ends are provided with pipeline flanges, the structure and pipe of the limit component on the water supply line Road ring flange agrees with, and first pipe fitting, the second pipe fitting are provided with pipe fitting flange disk corresponding with the pipeline flanges.
- 2. the device according to claim 1 that do not cut off the water replacing pipeline section or valve are realized on water supply line, its feature exist In：The second pipe fitting oral area is provided with back-up ring, and the oral area of first pipe fitting is provided with the first sealing ring, and the afterbody of the second pipe fitting is set There is the second sealing ring, the afterbody of first pipe fitting is provided with the first pipe fitting flange disk, and the afterbody of second pipe fitting is provided with second Pipe fitting flange disk, the 3rd sealing ring is provided between the back-up ring and the first pipe fitting flange disk；Fixing hole on the pipe fitting flange disk Position and corresponding side pipeline flanges on fixing hole position correspondence.
- 3. the device according to claim 2 that do not cut off the water replacing pipeline section or valve are realized on water supply line, its feature exist In：During unencryption seal, the total length after first pipe fitting and the second pipe fitting slide is managed not less than two installed on pipeline The distance between on the inside of road ring flange；First sealing ring, the thickness sum of the second sealing ring are no more than the 3rd sealing ring Thickness.
- 4. the device according to claim 2 that do not cut off the water replacing pipeline section or valve are realized on water supply line, its feature exist In：The connecting pipe is provided with suspension ring；The first pipe fitting flange disk and back-up ring are provided with the bolt hole of position correspondence.
- 5. the device according to claim 1 that do not cut off the water replacing pipeline section or valve are realized on water supply line, its feature exist In：Being provided between first pipe fitting and the second pipe fitting makes the drive mechanism that the first pipe fitting slides relative to the second pipe fitting, described Drive mechanism is air pressure or hydraulic synchronization jack.
- 6. being realized on water supply line according to claim 1 ~ 5 any one, which is not cut off the water, changes the dress of pipeline section or valve Put, it is characterised in that：It includes seal for pipe joints cabin, and the seal for pipe joints cabin is divided into upper sealed compartment and lower sealing by slide valve Cabin, the water supply line pass through lower sealed compartment, and the pipeline flanges of pipeline both sides are located in lower sealed compartment；The upper sealed compartment and Lower sealing is connected by upper and lower cabin connecting tube；The bottom in the seal for pipe joints cabin is provided with discharge outlet；The seal for pipe joints cabin with Water supply line seals.
- 7. the device according to claim 6 that do not cut off the water replacing pipeline section or valve are realized on water supply line, its feature exist In：The seal for pipe joints cabin carries out welded seal with water supply line by rubber sealing or by transition fitting.
- 8. the device according to claim 7 that do not cut off the water replacing pipeline section or valve are realized on water supply line, its feature exist In：The seal for pipe joints cabin is provided with visual flange window；Lifting handwheel is additionally provided with the top of the seal for pipe joints cabin.
- 9. the device according to claim 8 that do not cut off the water replacing pipeline section or valve are realized on water supply line, its feature exist In：The top in the seal for pipe joints cabin is provided with water filling pressure testing mouth and exhaust outlet；Sealed compartment cover plate is provided with the top of the upper sealed compartment, The sealed compartment cover plate penetrates hole provided with power line.
- 10. the device according to claim 9 that do not cut off the water replacing pipeline section or valve are realized on water supply line, its feature exist In：The bottom in the seal for pipe joints cabin is provided with positioning screw rod and positioning handwheel；The cabin connecting tube up and down is provided with ball valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720704040.3U CN207064958U (en) | 2017-06-16 | 2017-06-16 | Realize not cut off the water on water supply line and change the device of pipeline section or valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720704040.3U CN207064958U (en) | 2017-06-16 | 2017-06-16 | Realize not cut off the water on water supply line and change the device of pipeline section or valve |
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| Publication Number | Publication Date |
|---|---|
| CN207064958U true CN207064958U (en) | 2018-03-02 |
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ID=61508483
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108644616A (en) * | 2018-07-04 | 2018-10-12 | 上海邦芯物联网科技有限公司 | Intelligent checking system for Urban Buried Pipeline Network |
| CN108730670A (en) * | 2018-06-08 | 2018-11-02 | 徐州卓纳科技服务有限公司 | It is a kind of without turn off supply water be replaceable pvc pipe equipment |
| CN111322485A (en) * | 2020-02-07 | 2020-06-23 | 王宁宁 | Pipe repair device |
| CN113833085A (en) * | 2021-11-12 | 2021-12-24 | 中建七局安装工程有限公司 | Maintenance method for inspection well without stopping water supply |
-
2017
- 2017-06-16 CN CN201720704040.3U patent/CN207064958U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108730670A (en) * | 2018-06-08 | 2018-11-02 | 徐州卓纳科技服务有限公司 | It is a kind of without turn off supply water be replaceable pvc pipe equipment |
| CN108644616A (en) * | 2018-07-04 | 2018-10-12 | 上海邦芯物联网科技有限公司 | Intelligent checking system for Urban Buried Pipeline Network |
| CN111322485A (en) * | 2020-02-07 | 2020-06-23 | 王宁宁 | Pipe repair device |
| CN113833085A (en) * | 2021-11-12 | 2021-12-24 | 中建七局安装工程有限公司 | Maintenance method for inspection well without stopping water supply |
| CN113833085B (en) * | 2021-11-12 | 2023-06-20 | 中建七局安装工程有限公司 | Maintenance method for inspection well without stopping water |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: A device for changing pipe sections or valves on the water supply pipeline without stopping the water supply Effective date of registration: 20220930 Granted publication date: 20180302 Pledgee: Shenzhen small and medium sized small loan Co.,Ltd. Pledgor: SHENZHEN WATER TECHNOLOGY SERVICE CO.,LTD. Registration number: Y2022440020207 |
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Date of cancellation: 20231226 Granted publication date: 20180302 Pledgee: Shenzhen small and medium sized small loan Co.,Ltd. Pledgor: SHENZHEN WATER TECHNOLOGY SERVICE CO.,LTD. Registration number: Y2022440020207 |
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| PC01 | Cancellation of the registration of the contract for pledge of patent right |