CN109210302A - A kind of pressure pipeline Quick-action pressure-testing joint and pressure-measuring method - Google Patents
A kind of pressure pipeline Quick-action pressure-testing joint and pressure-measuring method Download PDFInfo
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- CN109210302A CN109210302A CN201811103168.XA CN201811103168A CN109210302A CN 109210302 A CN109210302 A CN 109210302A CN 201811103168 A CN201811103168 A CN 201811103168A CN 109210302 A CN109210302 A CN 109210302A
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- pressure
- air bag
- groove
- spring
- under test
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L25/00—Constructive types of pipe joints not provided for in groups F16L13/00 - F16L23/00 ; Details of pipe joints not otherwise provided for, e.g. electrically conducting or insulating means
- F16L25/009—Combination of a quick-acting type coupling and a conventional one
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K17/00—Safety valves; Equalising valves, e.g. pressure relief valves
- F16K17/02—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side
- F16K17/04—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side spring-loaded
- F16K17/0413—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side spring-loaded in the form of closure plates
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K17/00—Safety valves; Equalising valves, e.g. pressure relief valves
- F16K17/02—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side
- F16K17/04—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side spring-loaded
- F16K17/044—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side spring-loaded with more than one spring
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K17/00—Safety valves; Equalising valves, e.g. pressure relief valves
- F16K17/02—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side
- F16K17/04—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side spring-loaded
- F16K17/048—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side spring-loaded combined with other safety valves, or with pressure control devices
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/02—Actuating devices; Operating means; Releasing devices electric; magnetic
- F16K31/06—Actuating devices; Operating means; Releasing devices electric; magnetic using a magnet, e.g. diaphragm valves, cutting off by means of a liquid
- F16K31/08—Actuating devices; Operating means; Releasing devices electric; magnetic using a magnet, e.g. diaphragm valves, cutting off by means of a liquid using a permanent magnet
- F16K31/082—Actuating devices; Operating means; Releasing devices electric; magnetic using a magnet, e.g. diaphragm valves, cutting off by means of a liquid using a permanent magnet using a electromagnet and a permanent magnet
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L19/00—Joints in which sealing surfaces are pressed together by means of a member, e.g. a swivel nut, screwed on or into one of the joint parts
- F16L19/02—Pipe ends provided with collars or flanges, integral with the pipe or not, pressed together by a screwed member
- F16L19/0206—Pipe ends provided with collars or flanges, integral with the pipe or not, pressed together by a screwed member the collar not being integral with the pipe
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L19/00—Joints in which sealing surfaces are pressed together by means of a member, e.g. a swivel nut, screwed on or into one of the joint parts
- F16L19/02—Pipe ends provided with collars or flanges, integral with the pipe or not, pressed together by a screwed member
- F16L19/0212—Pipe ends provided with collars or flanges, integral with the pipe or not, pressed together by a screwed member using specially adapted sealing means
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L37/00—Couplings of the quick-acting type
- F16L37/02—Couplings of the quick-acting type in which the connection is maintained only by friction of the parts being joined
- F16L37/025—Couplings of the quick-acting type in which the connection is maintained only by friction of the parts being joined with an inner elastic part pressed against an outer part by reason of its elasticity
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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
- G01M3/04—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Examining Or Testing Airtightness (AREA)
Abstract
The present invention provides a kind of pressure pipeline Quick-action pressure-testing joints, it include: snap ring, the groove ends of the snap ring by being buckled in the open end of the pipe under test by sealing strip and device for screwing up, and the opening of the snap ring and the pipe under test is closed using the sealing strip in the groove, the case where causing pressure testing to fail after pressure leakages during reduction pressure testing, simultaneously, multiple adjustment bars are equipped in one end close to pipe under test opening of the snap ring, and multiple adjustment bars are set in the outer circumferential wall of the pipe under test, device for screwing up and the adjustment bar is recycled to be threadably secured, enable the adjustment bar preferably and the outer circumferential wall of the pipe under test tightens together, thus the case where pipe under test and the action pressure-testing joint slip during reduction pressure testing.
Description
Technical field
The present invention relates to pipeline engineering technical field, in particular to a kind of pressure pipeline Quick-action pressure-testing joint and pressure testing side
Method.
Background technique
When giving pipeline pressure test, it usually is inserted into pressure testing conduit in the end of pipeline, pressure testing conduit is carried out with pressure pump again
Connection pressurizes to pressure testing conduit by pressure pump and reaches pressure in pipeline, is achieved in the purpose of pipeline pressure test, but
It is that will cause that loosening occurs in pressure testing conduit or pressure testing conduit and pipe under test go out because pressure pump pressure is excessive during pressure testing
Now leakage pressure situation, makes troubles to work pressure test.
Summary of the invention
The present invention provides a kind of pressure pipeline Quick-action pressure-testing joint and pressure-measuring method, to solve conventional pipelines pressure testing process
Middle pressure testing conduit loosens or the defect of pressure testing conduit and pipe under test appearance leakage pressure.
A kind of pressure pipeline Quick-action pressure-testing joint,
It include: snap ring, sealing strip and device for screwing up, the snap ring is set as tubular structure, and one end is fastened in pipe under test,
The other end connects pressure pump, and one end that the snap ring connects the pipe under test is equipped with the groove of annular, and the groove is for blocking
Enter the open end of pipe under test, the snap ring is equipped with adjustment bar close to the open end of the pipe under test, and the adjustment bar is along institute
The end for stating snap ring extends outwardly setting, and the adjustment bar is distributed along the circumference with multiple, the adjusting along the side of the snap ring
The outer circumferential of item, which is equipped with, supplies the mutually matched screw thread of the device for screwing up, and the device for screwing up is set as annular female thread structure,
The sealing strip is set as circular tube structure, is located between the groove and the pipe under test inner wall.
Be it is stronger convenient for the sealing strip and the inner wall of the pipe under test can be contacted, reduce in pressure testing process
In there is pressure release situation, as a preferred technical scheme for, between the sealing strip and the inner wall of the groove be equipped with elastic slice, institute
It states on the circumferentially-spaced side wall for being located at the groove of elastic slice, the elastic slice is set as strip structure, and one end of the elastic slice is solid
Be scheduled on the bottom close to the groove, the other end is tilted to the sealing strip side, the elastic slice close to the channel opening one
End is equipped with the first spring, and first spring one end connects the elastic slice, and other end fixation is located on the slot inner wall of the groove；
The pipe under test is set between the groove and the sealing strip, and first spring and the elastic slice will be for will be described
Pipe under test is clamped between the sealing strip and the groove.
During pressure testing, if pressure pump instantaneous pressure is excessively high, easily causes pipeline instantaneous pressure excessive, thus cause
Pipeline occur booster or to the service life of pipeline cause reduce the case where, for reduce because during pressure testing instantaneous pressure it is excessively high caused by
The case where pipe damage, as a preferred technical scheme for, be additionally provided with through hole on the tubular structure inner wall of the snap ring, it is described
Through hole is located between the groove ends of the snap ring and the pressure pump, and the through hole is communicated with relief pipeline, described to run through
Hole is hinged with pressure release baffle close to one end of the snap ring, and the pressure release baffle is equipped with second close to one end of the relief pipeline
Spring, the second spring are equipped with spring base far from one end of the relief pipeline, and the spring base is set as ring structure, described
The inner sidewall of the outer circumferential of spring base and the relief pipeline is fixed as one.
During pressure testing, if persistently there is overpressure situation, pipeline burst probability can be longer and bigger with the over-voltage time,
Persistently occur pipeline burst probability when overpressure situation to reduce, is as a preferred technical scheme the circumferential direction of the pressure release baffle
Outside is equipped with flexible sealing fin, and the pressure release baffle is equipped with mandril close to the one side of the spring, and the mandril passes through described
The coil component spring silk of second spring, and by the hinged activity of the axis of the pressure release baffle and the spring base close to the spring
It is in contact on one side,
The contact surface of the spring base and the mandril is equipped with a protruding block, and the protruding block center is equipped with notch, described
Notch is inserted into for the mandril,
Bottom and the end of the mandril are equipped with contact block in the notch, the mandril, the pressure release baffle, described
The first conducting wire is embedded in spring base and the second spring, first conducting wire one end is connected to the contact block of the mandril,
The other end finally again leads to the first conducting wire through the spring base through the mandril, the pressure release baffle, the second spring
On the outside of the relief pipeline,
The outside of the relief pipeline is equipped with annular battery, and first conducting wire and the annular battery are electrically connected,
The spring base is equipped with dual level relief valve door far from one end of the second spring, and the dual level relief valve door includes
Third spring, the second pressure relief plate and electromagnet, the electromagnet are electrically connected by the contact block of the second conducting wire and the spring base
It connects, the electromagnet is set as ring structure, and is located at the one end of the spring base far from the second spring, the third spring
One end connects second pressure relief plate, and second pressure relief plate is set as magnet, magnetism and institute under the electromagnet energized state
The magnetism for stating the second pressure relief plate is set as repelling each other.
For the opening that the action pressure-testing joint is preferably fixed on to the pipe under test, as a preferred technical scheme for,
The relief pipeline is connected with capsule pipe far from one end of the snap ring, and the snap ring is equipped with the first gas close to one end of the groove
Capsule, first air bag are set as ring structure, and first air bag is equipped with Nang Kou, and the Nang Kou is connected to the capsule pipe and sets
It sets,
The fixed side inner wall being located on the groove far from the sealing strip of the lateral wall of first air bag, described the
The annular inner wall of one air bag is set on the lateral wall of the pipe under test；
The first sucker is additionally provided on the annular inner wall of first air bag, first sucker is close to the pipe under test
Side is equipped at intervals with multiple apertures,
The second air bag is equipped between first sucker and first air bag, the aperture is connected to second air bag
Setting,
First sucker extends close to the slot opening end is equipped with the first suction pipe, first suction pipe connection described the
Two air bags,
First suction pipe is equipped with negative pressure air-suction device far from one end of first sucker；
The lower section of first suction pipe is equipped with water injection pipe, and described water injection pipe one end is connected to second air bag, and the other end connects
Injector is connected with,
The capsule pipe is equipped with valve.
For the opening that the action pressure-testing joint is preferably fixed on to the pipe under test, as a preferred technical scheme for,
Third air bag is additionally provided in the groove, the third air bag is embedded between the sealing strip and the groove inner wall, and institute
It states third air bag and is set as ring structure, the lateral wall of ring structure is fixedly connected with the inner wall of the groove,
The third air bag is connected to first air bag by tracheae, and the third air bag is set far from the side of the groove
There is the second sucker, multiple apertures are equipped at intervals on second sucker, are equipped between second sucker and the third air bag
Four gasbags, the four gasbags are equipped at intervals with multiple apertures close to the center side of the groove,
Multiple 4th springs are equipped at intervals in first air bag and the third air bag, the 4th spring is around institute
The longitudinal center line of snap ring is stated uniformly at intervals in the utricule of first air bag and the third air bag, the four gasbags
The first conduit and the second conduit are drawn in utricule, first conduit is connected to first suction pipe, and second conduit is connected to institute
State water injection pipe.
The Quick-action pressure-testing process to pressure pipeline is realized according to following steps:
Step 1, the pressure pipeline Quick-action pressure-testing joint as described in any claim in claim 1~6 is obtained；
Step 2, the groove of the snap ring be located in the open end of the pipe under test, and make close in the groove
Strip of paper used for sealing is between the groove and the inner wall of the pipe under test；
Step 3, device for screwing up is screwed on the outer circumferential wall of the adjustment bar, guarantee the adjustment bar wrap tightly to
The outer circumferential wall in test tube road,
Step 4, start pressure pump, applied voltage test is carried out to testing pressure pipeline.
The present invention has the advantage that
By the way that the groove ends of the snap ring to be buckled in the open end of the pipe under test, and utilize close in the groove
Strip of paper used for sealing closes the opening of the snap ring and the pipe under test, causes pressure testing to lose after pressure leakages during reduction pressure testing
The case where losing, meanwhile, multiple adjustment bars are equipped with close to one end of pipe under test opening in the snap ring, and by multiple tune
Section item is set in the outer circumferential wall of the pipe under test, recycles device for screwing up and the adjustment bar to be threadably secured, makes
The adjustment bar can preferably tighten together with the outer circumferential wall of the pipe under test, thus to be measured during reduction pressure testing
The case where pipeline and the action pressure-testing joint slip, especially under the inflammable and explosive environment such as chemical plant, if desired weld into
It can then cause the case where firing because operation is lack of standardization when row pressure testing, and by utilizing the action pressure-testing joint provided by the invention, it can
It realizes and quickly patches fixed and carry out work pressure test, reduce because what welding occurred fires situation.
Other features and advantages of the present invention will be illustrated in the following description, also, partly becomes from specification
It obtains it is clear that understand through the implementation of the invention.The objectives and other advantages of the invention can be by written explanation
Specifically noted structure is achieved and obtained in book, claims and attached drawing.
Below by drawings and examples, technical scheme of the present invention will be described in further detail.
Detailed description of the invention
Attached drawing is used to provide further understanding of the present invention, and constitutes part of specification, with reality of the invention
It applies example to be used to explain the present invention together, not be construed as limiting the invention.In the accompanying drawings:
Fig. 1 is a kind of structural schematic diagram of pressure pipeline Quick-action pressure-testing joint provided by the invention；
Fig. 2 is a kind of elastic piece structure schematic diagram of pressure pipeline Quick-action pressure-testing joint provided by the invention；
Fig. 3 is a kind of first spring structure schematic diagram of pressure pipeline Quick-action pressure-testing joint provided by the invention；
Fig. 4 is a kind of relief pipeline structural schematic diagram of pressure pipeline Quick-action pressure-testing joint provided by the invention；
Fig. 5 is a kind of push rod structure schematic diagram of pressure pipeline Quick-action pressure-testing joint provided by the invention；
Fig. 6 is a kind of the first conducting wire and the second conductor connecting structure of pressure pipeline Quick-action pressure-testing joint provided by the invention
Schematic diagram；
Fig. 7 is a kind of first air bag attachment structure schematic diagram of pressure pipeline Quick-action pressure-testing joint provided by the invention；
Fig. 8 is a kind of first sucker structure schematic diagram of pressure pipeline Quick-action pressure-testing joint provided by the invention；
Fig. 9 is a kind of second sucker structure schematic diagram of pressure pipeline Quick-action pressure-testing joint provided by the invention；
Figure 10 is a kind of 4th spring structure schematic diagram of pressure pipeline Quick-action pressure-testing joint provided by the invention；
Wherein, 1- snap ring, 2- sealing strip, 3- device for screwing up, 4- adjustment bar, 5- pressure pump, 6- groove, 7- pipe under test,
8- elastic slice, the first spring of 9-, 11- relief pipeline, 12- pressure release baffle, 13- second spring, 14- spring base, 15- flexible sealing
Piece, 16- mandril, 17- protruding block, 18- notch, 19- contact block, the first conducting wire of 20-, 21- annular battery, 22- dual level relief valve
Door, 23- third spring, the second pressure relief plate of 24-, 25- electromagnet, the second conducting wire of 26-, 27- capsule pipe, the first air bag of 28-, 29- capsule
Mouthful, the first sucker of 30-, the first suction pipe of 31-, 32- aperture, 33- negative pressure air-suction device, the second air bag of 34-, 35- water injection pipe, 36-
Injector, 37- valve, 38- third air bag, 39- tracheae, the second sucker of 40-, the 4th spring of 41-, 42- four gasbags, 43-
One conduit, the second conduit of 44-.
Specific embodiment
Hereinafter, preferred embodiments of the present invention will be described with reference to the accompanying drawings, it should be understood that preferred reality described herein
Apply example only for the purpose of illustrating and explaining the present invention and is not intended to limit the present invention.
According to Fig. 1, the embodiment of the invention provides a kind of pressure pipeline Quick-action pressure-testing joints, which is characterized in that
It include: snap ring 1, sealing strip 2 and device for screwing up 3, the snap ring 1 is set as tubular structure, and one end is fastened on to test tube
On road 7, the other end connects pressure pump 5, and one end that the snap ring 1 connects the pipe under test 7 is equipped with the groove 6 of annular, described
Groove 6 is used to be caught in the open end of pipe under test 7, and the snap ring 1 is equipped with adjustment bar 4 close to the open end of the pipe under test 7,
The adjustment bar 4 extends outwardly setting along the end of the snap ring 1, and the adjustment bar 4 is circumferentially equal along the edge of the snap ring 1
It is furnished with multiple, the outer circumferential of the adjustment bar 4, which is equipped with, supplies the mutually matched screw thread of the device for screwing up 3, the device for screwing up 3
Annular female thread structure is set as,
The sealing strip 2 is set as circular tube structure, is located between 7 inner wall of the groove 6 and the pipe under test,
The sealing strip 2 is located at the groove 6 close to the side of 7 inner wall of pipe under test.
The Quick-action pressure-testing process to pressure pipeline is realized according to following steps:
Step 1, the pressure pipeline Quick-action pressure-testing joint is obtained；
Step 2, the groove 6 of the snap ring 1 be located in the open end of the pipe under test 7, and make in the groove 6
Sealing strip 2 between the groove 6 and the inner wall of the pipe under test 7；
Step 3, device for screwing up 3 is screwed on the outer circumferential wall of the adjustment bar 4, guarantees that the adjustment bar 4 wraps tightly
In the outer circumferential wall of pipe under test 7,
Step 4, start pressure pump 5, applied voltage test is carried out to testing pressure pipeline 7.
By the way that the groove ends of the snap ring to be buckled in the open end of the pipe under test, and utilize close in the groove
Strip of paper used for sealing closes the opening of the snap ring and the pipe under test, causes pressure testing to lose after pressure leakages during reduction pressure testing
The case where losing, meanwhile, multiple adjustment bars are equipped with close to one end of pipe under test opening in the snap ring, and by multiple tune
Section item is set in the outer circumferential wall of the pipe under test, recycles device for screwing up and the adjustment bar to be threadably secured, makes
The adjustment bar can preferably tighten together with the outer circumferential wall of the pipe under test, thus to be measured during reduction pressure testing
The case where pipeline and the action pressure-testing joint slip, especially under the inflammable and explosive environment such as chemical plant, if desired weld into
It can then cause the case where firing because operation is lack of standardization when row pressure testing, and by utilizing the action pressure-testing joint provided by the invention, it can
It realizes and quickly patches fixed and carry out work pressure test, reduce because what welding occurred fires situation.
It is more firm convenient for the sealing strip and the inner wall of the pipe under test can be contacted according to fig. 2 and shown in Fig. 3
It is as a preferred technical scheme, the sealing strip 2 and the groove 6 Gu pressure release situation occurs during pressure testing in reduction
Elastic slice 8 is equipped between inner wall, on the circumferentially-spaced side wall for being located at the groove 6 of the elastic slice 8, the elastic slice 8 is set as strip piece
Shape structure, one end of the elastic slice 8 are fixed on close to the bottom of the groove 6, and the other end is tilted to 2 side of sealing strip,
The elastic slice 8 is equipped with the first spring 9 close to one end of the channel opening, and described first spring, 9 one end connects the elastic slice 8, separately
One end fixation is located on the slot inner wall of the groove 6；The pipe under test 7 be set in the groove 6 and the sealing strip 2 it
Between, and first spring 9 and the elastic slice 8 are used to the pipe under test 7 being clamped on the sealing strip 2 and the groove 6
Between.
In use, the sealing strip is squeezed to the inner ring inner wall of the groove when the pipe under test is inserted into the groove
Pressure, after the sealing strip is extruded, the elastic slice is inwardly squeezed and is deformed therewith, is straightened by original being upturned, and described the
One spring-compressed, at this point, the sealing strip is by described recessed under the effect of the pressure and elastic force of first spring and the elastic slice
The sealing strip firmly can be squeezed and be limited by the extruding of slot inner wall and the pipe under test inner wall, that is, can guarantee
The sealing performance of the sealing strip is more preferable, while also assuring that the pipe under test and the connection of the groove more fasten, and subtracts
The case where few pipe under test slips during pressure testing.
According to Fig.4, during pressure testing, if pressure pump instantaneous pressure is excessively high, pipeline instantaneous pressure is easily caused
It is excessive, thus cause pipeline booster occur or the case where reducing is caused to the service life of pipeline, to reduce because of wink during pressure testing
Between hypertonia the case where causing pipe damage, as a preferred technical scheme on the tubular structure inner wall of the snap ring 1 also
Equipped with through hole, the through hole is located between the groove ends and the pressure pump 5 of the snap ring 1, and the through hole is communicated with
Relief pipeline 11, the through hole are hinged with pressure release baffle 12 close to one end of the snap ring 1, and the pressure release baffle 12 is close to institute
The one end for stating relief pipeline 11 is equipped with second spring 13, and the second spring 13 is equipped with bullet far from one end of the relief pipeline 11
Spring abutment 14, the spring base 14 are set as ring structure, the outer circumferential of the spring base 14 and the inside of the relief pipeline 11
Wall is fixed as one.
When the instantaneous pressure of pressure in pipe under test is excessive, pressure can open the pressure release baffle, the pressure release baffle
It is then moved to the relief pipeline direction, the second spring is compressed by the pressure release baffle, the relief pipeline and the card
Through hole between ring is then opened, and the instantaneous pressure in pipe under test can be then released in relief pipeline, thus can subtract
Few excessive degree of impairment caused by pipe under test of instantaneous pressure.And after pressure is normal, the second spring then can will be described
Pressure release baffle resets, and the pressure release baffle is kept off again on the through hole between the snap ring and the relief pipeline.
According to Fig. 4, Fig. 5 and Fig. 6, during pressure testing, if persistently there is overpressure situation, pipeline burst probability meeting
It is longer and bigger with the over-voltage time, persistently occur pipeline burst probability when overpressure situation to reduce, as a preferred technical scheme
For the outer circumferential of the pressure release baffle 12 is equipped with flexible sealing fin 15, and the pressure release baffle 12 is close to the one of the spring
Face is equipped with mandril 16, and the mandril 16 passes through the coil component spring silk of the second spring 13, and passes through the pressure release baffle 12
The hinged activity of axis and being in contact on one side close to the spring with the spring base 14,
The contact surface of the spring base 14 and the mandril 16 is equipped with a protruding block 17, and 17 center of protruding block is equipped with slot
Mouth 18, the notch 18 are inserted into for the mandril 16,
Bottom and the end of the mandril 16 are equipped with contact block 19, the mandril 16, the pressure release in the notch 18
The first conducting wire 20 is embedded in baffle 12, the spring base 14 and the second spring 13, described first conducting wire, 20 one end connects
Lead to the contact block 19 of the mandril 16, the other end is through the mandril 16, the pressure release baffle 12, the second spring 13, finally
First conducting wire 20 is led into 11 outside of relief pipeline through the spring base 14 again,
The outside of the relief pipeline 11 is equipped with annular battery 21, and first conducting wire 20 and the annular battery 21 are electrical
Connection,
The spring base 14 is equipped with dual level relief valve door 22, the dual level relief valve far from one end of the second spring 13
Door 22 includes third spring 23, the second pressure relief plate 24 and electromagnet 25, and the electromagnet 25 passes through the second conducting wire 26 and the bullet
The contact block 19 of spring abutment 14 is electrically connected, and the electromagnet 25 is set as ring structure, and is located at the spring base 14 far from described
One end of second spring 13, described 23 one end of third spring connect second pressure relief plate 24, and second pressure relief plate 24 is set as
The magnetism of magnet, magnetism and second pressure relief plate 24 under 25 energized state of electromagnet is set as repelling each other.
The flexible sealing fin can guarantee that the through hole between the snap ring and the relief pipeline is not in leakage
Situation, meanwhile, the mandril can guarantee that the pressure release baffle will not cause the pressure release baffle to be beaten because instantaneous pressure is excessive
The opening opened is excessive and cannot return to situation in situ.
Under normality, the dual level relief valve is set as closed state, i.e., the described third spring is compressive state, and described second lets out
The magnet of pressing plate is firmly adsorbed on the electromagnet, no power under the electromagnet normality, only one block of close magnetic material,
Or faint magnetic material, it is magnetic attracting with the magnet magnetism of second pressure relief plate；
When long-time be in overvoltage condition when, the mandril moves upwards under the action of the pressure release baffle, and with institute
The protruding block contact on spring base is stated, while being inserted into the notch on the protruding block, contact block in the notch and described
After contact block on mandril is contacted, due to being equipped with annular battery on the outside of the relief pipeline, while the annular battery is logical
The contact block that the first conducting wire is connected on the mandril is crossed, the contact block in the notch then passes through the second conducting wire and connects the electromagnetism
Iron, after the electromagnet is powered, then the magnet magnetism with second pressure relief plate is repelled each other, and second pressure relief plate is then by the electricity
The high-intensity magnetic field of magnet is pushed open, and the third spring flicks, at this time the dual level relief valve, that is, openable.It can guarantee for a long time
When in overvoltage condition, the pressure in the pipe under test is released, and reduces the booster or pipeline damage of the pipe under test
The case where hurting.
According to Fig. 7, Fig. 8, Fig. 9 and Figure 10, for the action pressure-testing joint is preferably fixed on the pipe under test
Opening, as a preferred technical scheme for the relief pipeline 11 is connected with capsule pipe 27 far from one end of the snap ring 1, described
Snap ring 1 is equipped with the first air bag 28 close to one end of the groove 6, and first air bag 28 is set as ring structure, first gas
Capsule 28 is equipped with capsule mouth 29, and the capsule mouth 29 is connected to setting with the capsule pipe 27,
The fixed side inner wall being located on the groove 6 far from the sealing strip 2 of the lateral wall of first air bag 28, institute
The annular inner wall for stating the first air bag 28 is set on the lateral wall of the pipe under test 7；
The first sucker 30 is additionally provided on the annular inner wall of first air bag 28, first sucker 30 is close to described to be measured
The side of pipeline 7 is equipped at intervals with multiple apertures 32,
The second air bag 34, the aperture 32 and described second are equipped between first sucker 30 and first air bag 28
The connection setting of air bag 34,
First sucker 30 extends close to 6 open end of groove is equipped with the first suction pipe 31, and first suction pipe 31 connects
Lead to second air bag 34,
First suction pipe 31 is equipped with negative pressure air-suction device 33 far from one end of first sucker 30；
The lower section of first suction pipe 31 is equipped with water injection pipe 35, and described 35 one end of water injection pipe is connected to second air bag 34,
The other end is communicated with injector 36,
The capsule pipe 27 is equipped with valve 37.
Third air bag 38 is additionally provided in the groove 6, the third air bag 38 is embedded in the sealing strip 2 and the groove
Between 6 inner walls, and the third air bag 38 is set as ring structure, and the lateral wall of ring structure and the inner wall of the groove 6 are solid
Fixed connection,
The third air bag 38 is connected to first air bag 28 by tracheae 39, and the third air bag 38 is far from the groove
6 side is equipped with the second sucker 40, is equipped at intervals with multiple apertures 32 on second sucker 40, second sucker 40 with it is described
Four gasbags 42 are equipped between third air bag 38, the four gasbags 42 are equipped at intervals with more close to the center side of the groove 6
A aperture 32,
Multiple 4th springs 41, the 4th spring are equipped at intervals in first air bag 28 and the third air bag 38
41 around the longitudinal center line of the snap ring 1 uniformly at intervals in the utricule of first air bag 38 and the third air bag 38,
The first conduit 43 and the second conduit 44 are drawn in the utricule of the four gasbags 42, first conduit 43 is connected to described first and inhales
Pipe 31, second conduit 44 are connected to the water injection pipe 35.
When work, when the pressure of pulsometer is excessive, when causing that air pressure is excessive in pipe under test, the relief pipeline can lead to
It crosses pressure release baffle and dual level relief valve goalkeeper's pressure discharges, and by after dual level relief valve goalkeeper air venting, then by gas
Body then can be by the pipe under test after first air bag passes through gas expansion through the capsule Tube Drain to first air bag
Inner wall being fitted between the annular inner wall and the sealing strip of first air bag tightly, thus can reduce because air pressure is excessive
The case where causing the action pressure-testing joint to slip, meanwhile, set sucker can also be adsorbed firmly below first air bag
On the lateral wall of the pipe under test, in use, first suction pipe is carried out air-breathing, institute using the negative pressure air-suction device
The first suction pipe is stated after negative inspiratory pressure, then the air in second air bag is extracted out, and the aperture will be utilized the suction
Air between disk and the pipe under test lateral wall is extracted out, and the sucker is made firmly to be adsorbed on the outer of the pipe under test
On side wall, the case where action pressure-testing joint deviates from the pipe under test open end is thus further enhanced；Meanwhile first air bag
Also guarantee to be not in gas leakage situation between the pipe under test and the snap ring, further strengthen during carrying out pressure testing
Its sealing effect, and then strengthen the accuracy of pipeline pressure test.
In another embodiment, if the valve is alternatively arranged as inflating port, when described in the case that the sealing strip fails
When sealing strip fails, using first air bag, the third air bag and the tracheae by the inner sidewall of the pipe under test and
Lateral wall and open end are bonded, and are inflated at the valve, keep first air bag and the third air bag swollen
The inner sidewall of the pipe under test, lateral wall are played and wrapped up, sealing purpose is further realized.
The second set sucker can be firmly adsorbed on the inner sidewall of the pipe under test on the third air bag, and logical
The negative pressure air-suction device is crossed to take out the air between first sucker and second sucker and the pipe under test
Out, first sucker can be realized and second sucker is firmly adsorbed on the mesh of the pipe under test inner sidewall and lateral wall
's.
Further, before carrying out negative inspiratory pressure to first sucker and second sucker, existed using injector
Water filling in the water injection pipe, water flow into second air bag and the four gasbags through its water injection pipe, then flow into institute through aperture
It states between the first sucker and the pipe under test and between second sucker and the pipe under test, recycles institute later
It states negative pressure air-suction device to extract the water and air between second air bag and the four gasbags out, due to carrying out after having water
When negative pressure is sucked out, the suction between first sucker and second sucker and pipe under test increases, and further ensures institute
It states action pressure-testing joint and is not easy the case where disengaging.
By the way that the 4th spring is arranged in first air bag and the third air bag, using the 4th spring
Between elastic force first air bag and the third air bag are firmly located to the lateral wall and inner sidewall of the pipe under test
On, it is further reduced the case where action pressure-testing joint deviates from the pipe under test.
Obviously, various changes and modifications can be made to the invention without departing from essence of the invention by those skilled in the art
Mind and range.In this way, if these modifications and changes of the present invention belongs to the range of the claims in the present invention and its equivalent technologies
Within, then the present invention is also intended to include these modifications and variations.
Claims (7)
1. a kind of pressure pipeline Quick-action pressure-testing joint characterized by comprising snap ring (1), sealing strip (2) and device for screwing up
(3), the snap ring (1) is set as tubular structure, and one end is fastened on pipe under test (7), and the other end connects pressure pump (5), described
One end that snap ring (1) connects the pipe under test (7) is equipped with the groove (6) of annular, and the groove (6) is for being caught in pipe under test
(7) open end, the snap ring (1) are equipped with adjustment bar (4) close to the open end of the pipe under test (7), the adjustment bar (4)
Extend outwardly setting along the end of the snap ring (1), and the adjustment bar (4) is distributed along the circumference with along the side of the snap ring (1)
Multiple, the outer circumferential of the adjustment bar (4), which is equipped with, supplies the device for screwing up (3) mutually matched screw thread, the device for screwing up
(3) it is set as annular female thread structure,
The sealing strip (2) is set as circular tube structure, is located between the groove (6) and the pipe under test (7) inner wall.
2. a kind of pressure pipeline Quick-action pressure-testing joint according to claim 1, which is characterized in that the sealing strip (2) and
Elastic slice (8) are equipped between the inner wall of the groove (6), on the circumferentially-spaced side wall for being located at the groove (6) of elastic slice (8),
The elastic slice (8) is set as strip structure, and one end of the elastic slice (8) is fixed on close to the bottom of the groove (6), another
It holds to the sealing strip (2) side and tilts, the elastic slice (8) is equipped with the first spring (9) close to one end of the channel opening, described
First spring (9) one end connects the elastic slice (8), and other end fixation is located on the slot inner wall of the groove (6)；It is described to test tube
Road (7) is set between the groove (6) and the sealing strip (2), and first spring (9) and the elastic slice (8) are used for
The pipe under test (7) is clamped between the sealing strip (2) and the groove (6).
3. a kind of pressure pipeline Quick-action pressure-testing joint according to claim 1, which is characterized in that the pipe of the snap ring (1)
Be additionally provided with through hole on shape inner structural wall, the through hole be located at the snap ring (between 1 groove ends and the pressure pump (5),
The through hole is communicated with relief pipeline (11), and the through hole is hinged with pressure release baffle close to one end of the snap ring (1)
(12), the pressure release baffle (12) is equipped with second spring (13) close to the one end of the relief pipeline (11), the second spring
(13) one end far from the relief pipeline (11) is equipped with spring base (14), and the spring base (14) is set as ring structure, described
The outer circumferential of spring base (14) and the inner sidewall of the relief pipeline (11) are fixed as one.
4. a kind of pressure pipeline Quick-action pressure-testing joint according to claim 3, which is characterized in that the pressure release baffle (12)
Outer circumferential be equipped with flexible sealing fin (15), and the pressure release baffle (12) close to the spring one side be equipped with mandril
(16), the mandril (16) passes through the coil component spring silk of the second spring (13), and passes through the axis of the pressure release baffle (12)
Hinged activity and being in contact on one side close to the spring with the spring base (14),
The contact surface of the spring base (14) and the mandril (16) is equipped with a protruding block (17), and protruding block (17) center is set
Having notch (18), the notch (18) is inserted into for the mandril (16),
The interior bottom of notch (18) and the end of the mandril (16) are equipped with contact block (19), the mandril (16), described
It is embedded with the first conducting wire (20) in pressure release baffle (12), the spring base (14) and the second spring (13), described first
Conducting wire (20) one end is connected to the contact block (19) of the mandril (16), and the other end is through the mandril (16), the pressure release baffle
(12), the first conducting wire (20) is finally led to the relief pipeline through the spring base (14) again by the second spring (13)
(11) outside,
The outside of the relief pipeline (11) is equipped with annular battery (21), first conducting wire (20) and the annular battery (21)
It is electrically connected,
The spring base (14) is equipped with dual level relief valve door (22) far from the one end of the second spring (13), the second level pressure release
Valve (22) includes third spring (23), the second pressure relief plate (24) and electromagnet (25), and the electromagnet (25) is led by second
Line (26) and the contact block (19) of the spring base (14) are electrically connected, and the electromagnet (25) is set as ring structure, and is located at
The one end of the spring base (14) far from the second spring (13), described third spring (23) one end connect second pressure release
Plate (24), second pressure relief plate (24) are set as magnet, and the magnetism under electromagnet (25) energized state is let out with described second
The magnetism of pressing plate (24) is set as repelling each other.
5. a kind of pressure pipeline Quick-action pressure-testing joint according to claim 3, which is characterized in that the relief pipeline (11)
One end far from the snap ring (1) is connected with capsule pipe (27), and the snap ring (1) is equipped with first close to the one end of the groove (6)
Air bag (28), first air bag (28) are set as ring structure, and first air bag (28) is equipped with Nang Kou (29), the Nang Kou
(29) it is connected to setting with the capsule pipe (27),
The fixed side inner wall being located on the groove (6) far from the sealing strip (2) of the lateral wall of first air bag (28),
The annular inner wall of first air bag (28) is set on the lateral wall of the pipe under test (7)；
Be additionally provided with the first sucker (30) on the annular inner wall of first air bag (28), first sucker (30) close to it is described to
The side in test tube road (7) is equipped at intervals with multiple apertures (32),
The second air bag (34) are equipped between first sucker (30) and first air bag (28), the aperture (32) and described
Second air bag (34) connection setting,
First sucker (30) extends close to the groove (6) open end is equipped with the first suction pipe (31), first suction pipe
(31) it is connected to second air bag (34),
First suction pipe (31) is equipped with negative pressure air-suction device (33) far from one end of first sucker (30)；
The lower section of first suction pipe (31) is equipped with water injection pipe (35), and described water injection pipe (35) one end is connected to second air bag
(34), the other end is communicated with injector (36),
The capsule pipe (27) is equipped with valve (37).
6. a kind of pressure pipeline Quick-action pressure-testing joint according to claim 5, which is characterized in that in the groove (6) also
Equipped with third air bag (38), the third air bag (38) is embedded between the sealing strip (2) and the groove (6) inner wall, and
The third air bag (38) is set as ring structure, and the lateral wall of ring structure is fixedly connected with the inner wall of the groove (6),
The third air bag (38) is connected to first air bag (28) by tracheae (39), and the third air bag (38) is far from described
The side of groove (6) is equipped with the second sucker (40), is equipped at intervals with multiple apertures (32) on second sucker (40), described second
Four gasbags (42) are equipped between sucker (40) and the third air bag (38), the four gasbags (42) are close to the groove
(6) center side is equipped at intervals with multiple apertures (32),
Multiple 4th springs (41), the 4th bullet are equipped at intervals in first air bag (28) and the third air bag (38)
Spring (41) is around the longitudinal center line of the snap ring (1) uniformly at intervals in first air bag (38) and the third air bag (38)
Utricule in, the first conduit (43) and the second conduit (44), first conduit are drawn in the utricules of the four gasbags (42)
(43) it is connected to first suction pipe (31), second conduit (44) is connected to the water injection pipe (35).
7. a kind of pressure pipeline Quick-action pressure-testing method, it is characterised in that, include the following steps:
Step 1, the pressure pipeline Quick-action pressure-testing joint as described in any claim in claim 1~6 is obtained；
Step 2, the groove (6) of the snap ring (1) is located in into the open end of the pipe under test (7), and makes the groove
(6) sealing strip (2) in is between the groove (6) and the inner wall of the pipe under test (7)；
Step 3, device for screwing up (3) is screwed on the outer circumferential wall of the adjustment bar (4), guarantees that the adjustment bar (4) is tight
It is rolled in the outer circumferential wall of pipe under test (7),
Step 4, start pressure pump (5), applied voltage test is carried out to testing pressure pipeline (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201811103168.XA CN109210302B (en) | 2018-09-20 | 2018-09-20 | Quick pressure test joint and pressure test method for pressure pipeline |
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|---|---|---|---|
| CN201811103168.XA CN109210302B (en) | 2018-09-20 | 2018-09-20 | Quick pressure test joint and pressure test method for pressure pipeline |
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| CN109210302B CN109210302B (en) | 2020-03-20 |
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| CN110345326A (en) * | 2019-08-09 | 2019-10-18 | 北京凌天世纪控股股份有限公司 | A kind of fire-fighting robot is automatically de- with device |
| CN111287645A (en) * | 2020-02-24 | 2020-06-16 | 国网浙江省电力有限公司湖州供电公司 | Portable block terminal overhauls folding ladder |
| CN111473172A (en) * | 2020-04-20 | 2020-07-31 | 万新 | Composite splicing pipeline |
| CN111928060A (en) * | 2020-08-05 | 2020-11-13 | 安徽铭泰仪表有限公司 | Connecting structure for pipe fitting valve |
| CN112853273A (en) * | 2020-12-31 | 2021-05-28 | 南京深光科技有限公司 | Flexible AMOLED mask plate surface coating equipment |
| CN114495453A (en) * | 2022-02-18 | 2022-05-13 | 常德力速达液压机械有限公司 | Hydraulic pressure real-time supervision alarm device convenient to installation |
| CN116952471A (en) * | 2023-09-08 | 2023-10-27 | 新乡航兴液压动力有限公司 | Air tightness detection assembly and detection method for high-pressure pump body |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110345326A (en) * | 2019-08-09 | 2019-10-18 | 北京凌天世纪控股股份有限公司 | A kind of fire-fighting robot is automatically de- with device |
| CN111287645A (en) * | 2020-02-24 | 2020-06-16 | 国网浙江省电力有限公司湖州供电公司 | Portable block terminal overhauls folding ladder |
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| CN111473172B (en) * | 2020-04-20 | 2021-12-28 | 广西北海北投环保水务有限公司 | Composite splicing pipeline |
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| CN112853273A (en) * | 2020-12-31 | 2021-05-28 | 南京深光科技有限公司 | Flexible AMOLED mask plate surface coating equipment |
| CN112853273B (en) * | 2020-12-31 | 2022-12-16 | 南京深光科技有限公司 | Flexible AMOLED mask plate surface coating equipment |
| CN114495453A (en) * | 2022-02-18 | 2022-05-13 | 常德力速达液压机械有限公司 | Hydraulic pressure real-time supervision alarm device convenient to installation |
| CN114495453B (en) * | 2022-02-18 | 2023-11-21 | 常德力速达液压机械有限公司 | Hydraulic real-time monitoring alarm device convenient to installation |
| CN116952471A (en) * | 2023-09-08 | 2023-10-27 | 新乡航兴液压动力有限公司 | Air tightness detection assembly and detection method for high-pressure pump body |
| CN116952471B (en) * | 2023-09-08 | 2023-12-15 | 新乡航兴液压动力有限公司 | Air tightness detection assembly and detection method for high-pressure pump body |
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| CN109210302B (en) | 2020-03-20 |
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