CN106872120A - Water test unit and its application process - Google Patents
Water test unit and its application process Download PDFInfo
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- CN106872120A CN106872120A CN201611263497.1A CN201611263497A CN106872120A CN 106872120 A CN106872120 A CN 106872120A CN 201611263497 A CN201611263497 A CN 201611263497A CN 106872120 A CN106872120 A CN 106872120A
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- sleeve
- test unit
- isocon
- bolt
- water test
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M3/00—Investigating fluid-tightness of structures
- G01M3/02—Investigating fluid-tightness of structures by using fluid or vacuum
- G01M3/26—Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors
- G01M3/28—Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors for pipes, cables or tubes; for pipe joints or seals; for valves ; for welds
- G01M3/2807—Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors for pipes, cables or tubes; for pipe joints or seals; for valves ; for welds for pipes
- G01M3/2815—Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors for pipes, cables or tubes; for pipe joints or seals; for valves ; for welds for pipes using pressure measurements
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E30/00—Energy generation of nuclear origin
- Y02E30/30—Nuclear fission reactors
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- General Physics & Mathematics (AREA)
- Examining Or Testing Airtightness (AREA)
Abstract
The present invention relates to a kind of water test unit and its application process.The water test unit includes closure bolt, sleeve, connecting bolt, current divider and hydraulic test pump.Closure bolt includes head and screw rod, and head offers depressed part, and socket cover is located at head, and sleeve is provided with mounting hole；Connecting bolt one end is located in sleeve and by depressed part and closure bolt connection, and the other end is stretched out outside sleeve and and sleeve connection；Current divider includes isocon, and isocon is provided with valve, and isocon is connected with mounting hole.Hydraulic test pump includes outlet pipe, and outlet pipe is connected with current divider.Above-mentioned water test unit without it is extra it is artificial confined space, construction safety and convenience are formed around injected hole, and the water pressure test can be carried out to multiple injected holes simultaneously, be conducive to improving efficiency of construction, accelerating construction progress, and convenient disassembly, safe operation and convenience.Additionally, the application process step of above-mentioned water test unit is simple, it is suitable to popularization and application.
Description
Technical field
The present invention relates to civil construction field, more particularly to water test unit and its application process.
Background technology
Anti-drag mud system can effectively reduce top as an indispensable important step of long-distance pipe jacking jacking force control
Pipe friction power, so that the usage quantity that part is relayed during jacking construction is reduced, if the lubricated slurry of injection can be in pipe
Periphery forms a more complete mud sleeve of ratio, then its friction reducing effect is preferable.Ordinary circumstance frictional resistance can by 12KN/m2~
30KN/m2 reduces to 3KN/m2~5KN/m2, even more small.Additionally, after completion mud sleeve is formed around tube wall, can be by reducing
Jacking band soil phenomenon reaches the purpose of control settlement.Therefore the quality that mud sleeve is formed, is directly connected to the effect of drag reduction.
Usually, mending slurry two ways using push-bench synchronous grouting and pipeline section carries out the tail ring of drag reduction, i.e. push-bench
To slip casting ring is set, thus mud form mud sleeve in pipe outer wall；Thereafter pipeline section part is starched step by step, while mending in jacking, is mended
Slurry hole is circular layout.Consider that DN3800 pipe diameters are larger, 4~6 injected holes, 60 degree of arranged for interval are set per ring.Against top
The tube coupling in pipe die portion, often one ring of section arrangement, 4~6 injected holes of each ring setting, about save (12m) one rings every two thereafter.And
Made the appropriate adjustments depending on top power size in actual push pipe, per pass mends slurry ring separate valve control.After completing jacking, it is right to carry out
The mud sleeve in pipe week carries out cement mortar displacement, and finally these mud holes are blocked.The qualified standard of inspection closure is one by one
Carry out the water pressure test.
It is that injected hole is tried one by one using single strut connection pressure testing sleeve in the water pressure test construction of conventional injected hole
Pressure.Concretely comprise the following steps：Injected hole is entangled by sleeve, lower end is supported by strut, end sets up jack, the side flexible pipe of sleeve
Connection manual pressure test pump.During pressure testing, lifting jack is supportted in tube wall sleeve, it is ensured that pressure testing is not revealed, using manual pressure test pump
Suppressing carries out hydraulic pressure pressure testing.
However, jack rising or falling speed is slower, and constantly conversion construction location is needed when testing other injected holes so that
Efficiency of construction is relatively low, influences construction speed；And, jack jacking carries out easily skidding occur when pressure testing is operated, and exists
Potential safety hazard.
The content of the invention
Based on this, it is necessary to provide a kind of efficiency of construction water test unit and its application process high and safe.
A kind of water test unit, including：
Closure bolt, including head and screw rod, the head offer depressed part；
Sleeve, is covered on the head, and the sleeve is provided with mounting hole；
Connecting bolt, one end is located in the sleeve and by the depressed part and the closure bolt connection, the other end
Stretch out the sleeve it is outer and with the sleeve connection；
Current divider, including isocon, the isocon are provided with valve, and the isocon is connected with the mounting hole；
Hydraulic test pump, including outlet pipe, the outlet pipe are connected with the current divider.
Wherein in one embodiment, the current divider includes multiple isocons, and each described isocon is equipped with
The valve.
Wherein in one embodiment, the center line of the mounting hole is vertical with the connecting bolt.
Wherein in one embodiment, the connecting bolt passes through nut and the sleeve connection.
Wherein in one embodiment, the inwall of the depressed part is provided with internal thread, and the end of the connecting bolt is provided with
The external screw thread matched with the internal thread.
Wherein in one embodiment, also including cushion, the cushion is located at the connecting bolt and the sleeve
Junction.
Wherein in one embodiment, also including sealing ring, the sealing ring is located in the mounting hole.
The application process of above-mentioned water test unit, including：
The screw rod of the closure bolt is screwed in the injected hole of push pipe and tighten sealing；
The sleeve is placed on the head of the closure bolt, described connecting bolt one end is located in the sleeve simultaneously
It is connected with the head, the other end stretches out the sleeve and is tightened in the sleeve, the sleeve is close to the pipe of the push pipe
Wall；
The isocon of the current divider is connected with the mounting hole of the sleeve, is gone out described in the hydraulic test pump
Water pipe is connected with the current divider；
In pressure testing water is branched to the sleeve through the isocon by the hydraulic test pump, the pressure of the valve is observed
The change of numeral, and then judge whether the closure of injected hole is qualified
Wherein in one embodiment, the current divider includes multiple isocons, and each described isocon is equipped with
The valve.
Wherein in one embodiment, the test pressure of the test pump is 2MPa-4MPa.
Above-mentioned water test unit is in use, closure bolt can be made in injected hole by screwing connecting bolt
Obtain sleeve to be closely affixed on tube wall, and then in the surrounding formation confined space of injected hole, pressure testing water is made through dividing by hydraulic test pump
Flow tube is branched in sleeve, and whether the phenomenon for having step-down by observing valve occurs that just to can determine whether whether injected hole blocks qualified.
Above-mentioned water test unit without it is extra it is artificial confined space, construction safety and convenience are formed around injected hole, and can
To carry out the water pressure test to multiple injected holes simultaneously, be conducive to improving efficiency of construction, accelerating construction progress, and convenient disassembly,
Safe operation and convenience.Additionally, the application process step of above-mentioned water test unit is simple, it is suitable to popularization and application.
Brief description of the drawings
Fig. 1 is the decomposing schematic representation of the water test unit of an embodiment；
Fig. 2 is the operating diagram of the water test unit of an embodiment；
Fig. 3 is the application process flow chart of the water test unit of an embodiment.
Specific embodiment
For the ease of understanding the present invention, the present invention is described more fully below with reference to relevant drawings.In accompanying drawing
Give preferred embodiment of the invention.But, the present invention can be realized in many different forms, however it is not limited to herein
Described embodiment.On the contrary, the purpose for providing these embodiments is to make the understanding to the disclosure more saturating
It is thorough comprehensive.
As shown in figure 1, the water test unit 10 of an embodiment includes closure bolt 100, sleeve 110, connecting bolt
120th, current divider 130 and hydraulic test pump 140.Closure bolt 100 includes head 102 and screw rod 104, and head 102 offers depressed part
106, sleeve 110 is covered on head 102, and sleeve 110 is provided with mounting hole 112.The one end of connecting bolt 120 is located in sleeve 110 simultaneously
It is connected with closure bolt 100 by depressed part 106, the other end stretches out outside sleeve 110 and is connected with sleeve 110.Current divider 130 is wrapped
Isocon 132 is included, isocon 132 is provided with valve, and isocon 132 is connected with mounting hole 112.Hydraulic test pump 140 includes outlet pipe
142, outlet pipe 142 is connected with current divider 130.
Above-mentioned water test unit is located in the injected hole of push pipe 20 in use, blocking bolt 100, by screwing connection
Bolt 120 can cause that sleeve 110 is close on the tube wall of push pipe 20, and then in the surrounding formation confined space of injected hole, lead to
In crossing hydraulic test pump 140 and pressure testing water is branched to sleeve 110 through isocon 132, whether the phenomenon for having step-down by observing valve goes out
Now just can determine whether whether injected hole blocks qualified.Above-mentioned water test unit artificial forms close without extra around injected hole
Space, construction safety and convenience are closed, and the water pressure test can be carried out to multiple injected holes simultaneously, be conducive to improving construction effect
Rate, accelerating construction progress, and convenient disassembly, safe operation and convenience.Specifically, when the pressure value on valve keeps constant
When, show that injected hole is blocked successfully.And if the situation of step-down occurs in the pressure value on valve, then show that injected hole closure is lost
Lose.
In the present embodiment, current divider 130 includes multiple isocons 132, and valve is equipped with each isocon 132.It is many
Individual isocon 132 can be connected with the injected hole in same ring simultaneously, and carry out pressure testing experiment simultaneously, only need to be by observing on valve
Pressure value just may determine that the closure situation of each injected hole.In addition, the outlet pipe 142 of hydraulic test pump 140 is connected to a shunting
Device 130, and be diverted into same ring multiple drag reduction injected holes by the current divider 130 with valve and reach the porous synchronous water pressure test imitating
Really, several times increase the efficiency of the injected hole water pressure test.As shown in figure 1, current divider 130 also includes inlet tube 134, hydraulic test pump 140
Outlet pipe 142 be connected with current divider 130 by inlet tube 134.In the present embodiment, current divider 130 is distribution valve plate, distribution
Include multiple connection female ends on valve plate, the end of isocon 132 is provided with and leads to the end that patches for being connected female end matching, isocon 132
Inserted terminal is crossed to be connected with distribution valve plate.
As shown in Fig. 2 in the present embodiment, current divider 130 includes 4 isocons 132, can simultaneously to 4 of same ring
Injected hole 1 carries out the water pressure test.Specifically, hydraulic test pump 140 is pressed so that pressure testing water flows into current divider 130 through inlet tube 134
In, in then separately flowing into each sleeve 110 through 4 isocons 132.And then realize simultaneously to four closure feelings of injected hole 1
Condition is judged.
Closure bolt 100 includes head 102 and screw rod 104, the diameter of screw rod 104 and the diameter matches of injected hole.Screw rod
104 are provided with tapered thread, and the end of screw rod 104 maintains an equal level with the outer wall of push pipe 20.In the present embodiment, screw rod 104 is near head
Portion 102 reserves 3mm length not cutting threads, prevents bolt excessively stubborn.Screw rod 104 protrudes the inwall 5mm of push pipe 20 to form head
102, and head 102 is processed into hexagonal (hexagon)nut.I.e., in the present embodiment, the head 102 and screw rod 104 1 of bolt 100 are blocked
It is body formed.
In the top plan perforate of head 102 to form depressed part 106, and in the inner surface tapping of depressed part 106, formed
Internal thread.The depth and diameter of depressed part 106 can be selected according to actual conditions.In the present embodiment, depressed part 106
Positioned at the center of head 102, i.e. the center of depressed part 106 is centrally located on same straight line with screw rod 104, is arranged such,
Can cause that depressed part 106 has larger depth bounds.In the present embodiment, the end of connecting bolt 120 is provided with and interior spiral shell
The external screw thread of line matching.When connecting bolt 120 inserts depressed part 106, the two threaded connection.
The effect of sleeve 110 is to form enclosed environment around the injected hole of push pipe 20, is easy to injected hole to carry out hydraulic pressure
Experiment.Connecting bolt 120 is stretched into sleeve 110 and is connected with closure bolt 100 by depressed part 106.Connecting bolt 120 sets
There is the external screw thread matched with the internal thread of depressed part 106, when connecting bolt 120 enters depressed part 106, the two is connected by screw thread
Connect, and then realize the connection of connecting bolt 120 and closure bolt 100.In the present embodiment, connecting bolt 120 passes through nut 122
It is connected with sleeve 110.As shown in figure 1, the other end of connecting bolt 120 is located at outside sleeve 110, nut 122 passes through connecting bolt
120 end sleeve is on connecting bolt 120.Nut 122 is threadedly coupled with connecting bolt 120, it is possible to by rotating nut
Pressure between 122 adjustment sleeves 110 and tube wall 20.Additionally, being provided with rubber blanket between tube wall 20 and sleeve 110, can play
The effect of sealing.Sleeve 110 is provided with mounting hole 112, and when the water pressure test is carried out, pressure testing water enters sleeve by mounting hole 112
In 110.
In the present embodiment, the center line of mounting hole 112 is vertical in connecting bolt 120.Injected hole plugging structure is in reality
Using when, the center line of the center line of connecting bolt 120 and closure bolt 100 is located along the same line, i.e. the pipe with push pipe 20
Wall is in substantially vertical state.The center line of mounting hole 112 is in almost parallel state with the tube wall of push pipe 20 so that isocon
132 can be configured when being connected with mounting hole 112 along tube wall, will not form larger bending, keep the unimpeded of current.Separately
Outward, the installation method of sleeve 110 increased the convenience of installation by the way of closure bolt 100 reversely holds sleeve 110,
And possess the feasibility of multi-hole position synchronous construction.
Further, in the present embodiment, also including cushion, cushion is located at connecting bolt 120 with sleeve 110
Junction.Cushion is sheathed on connecting bolt 120, and between nut 122 and the outer wall of sleeve 110, improves connection spiral shell
Sealing between bolt 120 and sleeve 110.In addition, in the present embodiment, also including sealing ring, sealing ring is located at mounting hole 112
In.In the water pressure test, when isocon 132 is connected with mounting hole 112, sealing ring can improve the sealing of connection.
Above-mentioned water test unit 10 when in use, tightening nut 122 so that sleeve 110 is close to tube wall 20, connects
Isocon 132 and mounting hole 112, and connect hydraulic test pump 140 and current divider 130.Manually pressurization hydraulic test pump 140 is caused
Pressure testing water is flowed into current divider 130, and flow to for pressure testing moisture by each isocon 132 is enclosed within each injected hole by current divider 130
Sleeve 110 in, and observe the numerical value change of valve on each isocon 132.In the case where step-down is found, you can judge
Injected hole closure failure at this.
As shown in figure 3, the application process of above-mentioned water test unit is comprised the following steps：
Step S300, the screw rod that will block bolt is screwed in the injected hole of push pipe and tightens sealing.The diameter of screw rod and note
Starch the diameter matches in hole.In the present embodiment, in the closure step of injected hole, also by well mixed high strength structural adhesion
It is uniformly injected into injected hole, anti-corrosion and sealing is carried out to injected hole.
Step S310, sleeve is placed on the head of closure bolt, and connecting bolt one end is located in sleeve and is connected with head,
The other end stretches out outside sleeve and is tightened in sleeve, sleeve is close to the tube wall of push pipe.The head for blocking bolt offers depressed part,
The inner surface of depressed part is provided with internal thread, and one end of connecting bolt is provided with the external screw thread matched with internal thread, and the other end passes set
Cylinder is outer and passes through nut and sleeve connection.That is, connecting bolt is connected with closure bolt thread, and passing through tightening nut can make set
Cylinder is close to tube wall, and then closing space is formed around injected hole.
Sleeve is provided with mounting hole, and mounting hole is used to be connected with isocon.In the present embodiment, the center line of mounting hole is in even
The central axis of connecting bolt.The installation method of sleeve increased installation by the way of closure bolt reversely holds sleeve
Convenience, and possess the possibility of multi-hole position synchronous construction.
Step S320, the isocon of current divider is connected with the mounting hole of sleeve, and outlet pipe and the current divider of hydraulic test pump connect
Connect.Pressure testing water in hydraulic test pump is entered in current divider by outlet pipe, and pressure testing water is branched to sleeve by current divider by isocon
In.
In the present embodiment, current divider includes multiple isocons, and each isocon is equipped with valve.Therefore, pressure testing
Water can simultaneously be reached in multiple sleeves by multiple isocons, and then to multiple injected holes carry out the water pressure test simultaneously.
Step S330, in pressure testing water is branched to sleeve through isocon by hydraulic test pump, observes the pressure on the number of valve
Change, and then judge whether the closure of injected hole is qualified.When the pressure value on valve does not change, show injected hole
Block successfully.If it find that in the case that pressure decline occurs in the pressure value on valve, just can determine whether that injected hole closure is lost
Lose.I.e., it is only necessary to which being changed by the pressure value for observing valve just can screen the closure situation for judging injected hole.
The application process sleeve of above-mentioned water test unit installs simple, and operative's difficulty is smaller, identical artificial feelings
Condition similarly hereinafter 4~6 hole pressure testing of ring when the overall time be about 30 minutes (comprising 15 minutes water pressure test time), pressure testing efficiency is tradition
4~5 times of mode, improve pressure testing efficiency.In addition, above-mentioned water test unit has stronger adaptability, for different pipes
Footpath or with ring difference hole count injected hole can carry out pressure testing, it is applied widely.
The closure of injected hole will be described in detail below：
1st, injected hole closure preparation
(1) after first the bentonite mixtures of push pipe outer wall drag reduction lubrication are replaced with mortar, and suitably safeguard, in order to avoid put
Change mortar to leak, influence push pipe sedimentation.
(2) the displacement mortar of injected hole is opened with valve, whether there is mortar to leak in observation valve, do not find to leak
Valve can be opened, and carry out the seal construction of next step injected hole.
(3) it is with high pressure, clean water that the pollutant concrete washing inside injected hole is clean, and bake handle or blowtorch with coal gas
By hole inside and the removal of periphery moisture, until reaching dry metal surface.
(4) built-in plug will be machined with safety cleaning agent and injected hole internal washing will be clean, in order to avoid influence sealing.
2nd, injected hole plugging construction
, using thick paste type epoxy cold coating, coating must meet Drinking Water hygienic requirements for injected hole anti-corrosion and sealing,
Antiseptic property must not be less than push pipe repaired mouth coating property.Applying coating mode injects coating outward using compression pump to injected hole,
Coating is formed in slip casting bore region, area coverage is more than 3 times of injected hole circular hole area, more than thickness 3cm.In injected hole
After filling coating, by tightening closure bolt, coating is extruded, complete anti-corrosion and sealing.
Concretely comprise the following steps：
(1) thick paste type epoxy cold coating is used：Wei Lebang boards high strength structural adhesion as injected hole plugging material.It is real
When border is constructed, structure needed for the quantity of sealing injected hole and the consumption of single injected hole adhesive of applying glue needed for are calculated in advance
Total consumption of glue, then by first (Wei Lebang board B-210A)：Second (Wei Lebang board B-210B)=2：1 is well mixed, and is used while allocating.
(2) well mixed high strength structural adhesion is uniformly injected into injected hole with compression pump, is filled in injected hole high-strength
Degree structure glue after, will closure bolt tighten, make glue from outside jacking to injected hole internal voids at, formed in slip casting bore region
Coating, area coverage is more than 3 times of injected hole circular hole area, and thickness is more than 3cm, completes anti-corrosion and sealing.
(3) to exclude air entrapment, plug need to be back-outed, mixed structure glue is irrigated again, and tighten again, will seal
The screw thread of stifled bolt is all tightened, and glue is all filled at the thread seal for making injected hole and closure bolt, then with putty knife or is scraped
The glue of extrusion is sealed plug by plate, plug is all encapsulated in glue.
(4) it is about with dry environment lower hardening time 1.5 hours at normal temperatures, after being needed under high humidity environment 4 hours
Can be fully cured, high-potting can be just carried out after solidification.Because injected hole is connected with the external world, the Free water for having flowing enters pipe
It is interior, thus when second will block bolt it is vexed enter injected hole before, workmen should be by a small amount of flax silk winding closure bolt, then will
The glue for preparing uniformly is coated on closure bolt, finally seals plug.This operation is to prevent the intrusion of circulating water from leading
Causing glue can not solidify completely.
(5) solidify after adhesive reach desired strength after, will can be cleaned out around workpiece with water under high pressure, and with polish
Piece polishes flat sealed circular ring face, can otherwise influence to seal stability.
(6) water pressure test can be carried out after injected hole closure is finished and after the completion of solidifying.Each injected hole must enter water-filling
Pressure experiment, test pressure is 1.15MPa, and the pressure testing time is 15min, pressure testing requirement in accordance with《Water supply and drainage pipeline engineering construct and
Acceptance criteria specification》(GB50268-2008).
, it is necessary to whether the closure for checking injected hole using the water pressure test succeeds after the closure for completing injected hole, below will
The injected hole water pressure test is described in detail：
1st, the inspection before the injected hole water pressure test
(1) thick paste type epoxy cold coating should be scribbled at injected hole closure on request, and confirms that closure bolt is assorted and twisted
Tightly.
(2) check whether injected hole pressure testing area surface is smooth, if out-of-flatness angle grinder is polishing to smooth, and check for
Surface defect.
(3) quality of " 0 " type sealing ring is checked, should be changed in time Ru defective in quality.
(4) confirm that whether forcing pipe is correct with the mounting means and installation site of support, checks that forcing pipe is tight with support
Gu degree, and ensure the welding quality of attachment means.
(5) check whether the pipeline of the water pressure test has run-down, there can not be drainage during pressure testing.
(6) whether checkout facility pressure gauge has verified qualified, and whether manometric range, accuracy class conform to
Ask.
(7) safeguard measure is taken to the equipment of surrounding, distribution box before the water pressure test, it is to avoid leak is damaged during pressure test
Equipment.
2nd, injected hole hydraulic test method
(1) isocon that will be cased with sealing ring is closely buckled in injected hole pressurised zone, and mounting bracket, and adjustment attachment means make
Whole pressure testing device two ends are fastened on inner tubal wall.
(2) the 1.15MPa water pressure tests are carried out with manual pressure test pump, the pressure testing time is 15min.To water filling in outlet pipe, together
When observed pressure table numerical value, the speed of boosting is unsuitable too fast, has time enough to check whether there is Lou to meet testing staff
Point；When it reaches 1.15Mpa, stop pressurization, carry out leak test, not to be depressured, No leakage, without be deformed into it is qualified；If
Not reaching requirement need to carry out treatment of doing over again；Device is removed after stopping pressurization 5min.
3rd, injected hole Hydraulic test technique requirement
(1) in order to ensure work pressure test safety and design specification requirement is met, should be in strict accordance with the permission model of pilot system
Enclose and operated with test pressure.
(2) the pressure gauge requirement used when testing is between 2Mpa to 4Mpa.
(3) test medium, according to the plan of this engineering practice general industrial water strength test and leak test.
(4) test pressure of pressure testing system should be performed by design code, and the design experiment pressure of injected hole is 1.15MPa.
(5) relief valve should be slowly opened during pressure release, selection safe location is carried out and considers that recoil strength is acted on, and avoids personnel
And equipment.
4th, injected hole water pressure test points for attention
(1) during the injected hole water pressure test, such as find there is leakage point, answer pressure release to process, with pressure must not place under repair.
(2) safeguard measure is taken to the electric equipment of surrounding, distribution box before the water pressure test, it is to avoid leak during pressure test
So as to cause electric leakage.
(3) when injected hole carries out pressure testing experiment, unrelated person must not enter interior without authorization.It is unrelated with pressure testing within this range to apply
Work should stop without exception.
(4) during injected hole pressure test, the body of operating personnel should not just to the connecting portion of examined system, and eminence is made
Safety belt should be hung up properly during industry, and gets out emergency treatment in advance.
(5) in process of the test, must not beat on the pipe of pressure testing and hang other weights, emphasis valve and danger portion
Position will have special messenger to guard, and prevent trouble before it happens.
Each technical characteristic of embodiment described above can be combined arbitrarily, to make description succinct, not to above-mentioned reality
Apply all possible combination of each technical characteristic in example to be all described, as long as however, the combination of these technical characteristics is not deposited
In contradiction, the scope of this specification record is all considered to be.
Embodiment described above only expresses several embodiments of the invention, and its description is more specific and detailed, but simultaneously
Can not therefore be construed as limiting the scope of the patent.It should be pointed out that coming for one of ordinary skill in the art
Say, without departing from the inventive concept of the premise, various modifications and improvements can be made, these belong to protection of the invention
Scope.Therefore, the protection domain of patent of the present invention should be determined by the appended claims.
Claims (10)
1. a kind of water test unit, it is characterised in that including：
Closure bolt, including head and screw rod, the head offer depressed part；
Sleeve, is covered on the head, and the sleeve is provided with mounting hole；
Connecting bolt, one end is located in the sleeve and by the depressed part and the closure bolt connection, and the other end stretches out
The sleeve it is outer and with the sleeve connection；
Current divider, including isocon, the isocon are provided with valve, and the isocon is connected with the mounting hole；
Hydraulic test pump, including outlet pipe, the outlet pipe are connected with the current divider.
2. water test unit according to claim 1, it is characterised in that the current divider includes multiple shuntings
Pipe, each described isocon is equipped with the valve.
3. water test unit according to claim 1, it is characterised in that the center line of the mounting hole and the connection
Bolt is vertical.
4. water test unit according to claim 1, it is characterised in that the inwall of the depressed part is provided with internal thread,
The end of the connecting bolt is provided with the external screw thread matched with the internal thread.
5. water test unit according to claim 1, it is characterised in that the connecting bolt passes through nut and the set
Cylinder connection.
6. water test unit according to claim 1, it is characterised in that also including cushion, the cushion is located at
The junction of the connecting bolt and the sleeve.
7. water test unit according to claim 1, it is characterised in that also including sealing ring, the sealing ring is located at
In the mounting hole.
8. the application process of the water test unit described in a kind of claim 1, it is characterised in that including：
The screw rod of the closure bolt is screwed in the injected hole of push pipe and tighten sealing；
By the sleeve be placed on it is described closure bolt the head, described connecting bolt one end be located at the sleeve in and with institute
Head connection is stated, the other end stretches out the sleeve and is tightened in the sleeve, the sleeve is close to the tube wall of the push pipe；
The isocon of the current divider is connected with the mounting hole of the sleeve, the outlet pipe of the hydraulic test pump
It is connected with the current divider；
In pressure testing water is branched to the sleeve through the isocon by the hydraulic test pump, the pressure on the number of the valve is observed
Change, and then judge whether the closure of injected hole qualified.
9. the application process of water test unit according to claim 8, it is characterised in that the current divider includes multiple
The isocon, each described isocon is equipped with the valve.
10. the application process of water test unit according to claim 8, it is characterised in that the experiment of the test pump
Pressure is 2MPa-4MPa.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611263497.1A CN106872120B (en) | 2016-12-30 | 2016-12-30 | Hydrostatic test device and application method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611263497.1A CN106872120B (en) | 2016-12-30 | 2016-12-30 | Hydrostatic test device and application method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106872120A true CN106872120A (en) | 2017-06-20 |
| CN106872120B CN106872120B (en) | 2023-07-04 |
Family
ID=59164177
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611263497.1A Active CN106872120B (en) | 2016-12-30 | 2016-12-30 | Hydrostatic test device and application method thereof |
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| CN107859807A (en) * | 2017-10-27 | 2018-03-30 | 中国建筑第八工程局有限公司 | Push pipe pipe repairing method |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107859807A (en) * | 2017-10-27 | 2018-03-30 | 中国建筑第八工程局有限公司 | Push pipe pipe repairing method |
| CN107859807B (en) * | 2017-10-27 | 2019-07-30 | 中国建筑第八工程局有限公司 | Push pipe pipe repairing method |
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| CN106872120B (en) | 2023-07-04 |
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