CN105757056B - A kind of sealed leakage detector - Google Patents
A kind of sealed leakage detector Download PDFInfo
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- CN105757056B CN105757056B CN201610182484.5A CN201610182484A CN105757056B CN 105757056 B CN105757056 B CN 105757056B CN 201610182484 A CN201610182484 A CN 201610182484A CN 105757056 B CN105757056 B CN 105757056B
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- 229910000831 Steel Inorganic materials 0.000 claims abstract description 277
- 239000010959 steel Substances 0.000 claims abstract description 277
- 238000007789 sealing Methods 0.000 claims abstract description 132
- 230000006835 compression Effects 0.000 claims abstract description 10
- 238000007906 compression Methods 0.000 claims abstract description 10
- 230000002093 peripheral effect Effects 0.000 claims description 10
- 230000000903 blocking effect Effects 0.000 claims description 4
- 238000001514 detection method Methods 0.000 abstract description 28
- 230000000694 effects Effects 0.000 abstract description 7
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 239000007789 gas Substances 0.000 description 68
- 238000000034 method Methods 0.000 description 7
- 238000000465 moulding Methods 0.000 description 7
- 238000012360 testing method Methods 0.000 description 5
- 238000006243 chemical reaction Methods 0.000 description 4
- 230000001737 promoting effect Effects 0.000 description 4
- 230000011218 segmentation Effects 0.000 description 4
- 230000006698 induction Effects 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 239000000567 combustion gas Substances 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 238000003032 molecular docking Methods 0.000 description 2
- 238000003825 pressing Methods 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000001427 coherent effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000003345 natural gas Substances 0.000 description 1
- 238000005192 partition Methods 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 238000012797 qualification Methods 0.000 description 1
- 238000010992 reflux Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 230000008961 swelling Effects 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B19/00—Testing; Calibrating; Fault detection or monitoring; Simulation or modelling of fluid-pressure systems or apparatus not otherwise provided for
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Jet Pumps And Other Pumps (AREA)
- Rigid Pipes And Flexible Pipes (AREA)
Abstract
The invention discloses a kind of sealed leakage detectors, including main engine bed, air feed pump, block cylinder, compression cylinder, central siphon, limit base, connection supports frame, clamping piston bar is equipped with positioning plate, end socket piston rod is equipped with band moving frame, central siphon is equipped with modeling and manages outer end-plate, the outer end-plate of steel pipe, mould pipe exterior seal ring, steel pipe exterior seal ring, central siphon is equipped with the first air inlet, first air inlet is equipped with the first breather check valve, central siphon outer wall is equipped with the first baroceptor, the steel modeling crossover sub that connection supports frame is supported is between limit base and closure cylinder, the gas supply end of air feed pump inside air supply pipe and central siphon by being connected to.The beneficial effects of the invention are as follows：Reasonable integral structure, to steel mould crossover sub positioning and clamping in place, can ensure leakproofness but will not press from both sides damage steel modeling crossover sub；With can automatic adjusument sealing structure, can strengthen hyperbar detection when sealing effect.
Description
Technical field
The invention belongs to the close property technical field of measurement and test of pipe fitting joint more particularly to a kind of sealed leakage detectors.
Background technology
Steel moulds crossover sub, and also known as PE steel moulds crossover sub, is widely used among current production, life, such as
Largely steel will be used to mould crossover sub in combustion gas, natural gas transportation pipeline（Outer combustion gas pipeline is mostly PE pipelines, into entering the room
It is generally inside steel pipe, needs to mould crossover sub using steel in switching process）.Steel moulds crossover sub, itself includes lengths of steel pipes（One section
Steel pipe）With modeling pipeline section（Usually one section of PE pipe）, one end of lengths of steel pipes docks to form linkage section with one end of modeling pipeline section, linkage section
It is mostly clamped and is formed with modeling pipeline section one end by lengths of steel pipes one end, and be sealed using sealing ring（Linkage section would generally be arranged one
A little concaveconvex structures coordinate clamping, if the flange in lengths of steel pipes mutually fastens with the card slot on modeling pipeline section, can also be set outside linkage section
Anchor ear is set further to be held tightly）, the front of motor of lengths of steel pipes is known as steel pipe end, and the front of motor for moulding pipeline section is known as moulding pipe end,
Modeling pipe end can mould pipe with waiting docking（PE is managed）Welding, steel pipe end can connect with steel tube screw thread to be docked, weld or pass through it
Its structure is docked.Since steel moulds crossover sub applied to gas, liquid transportation art, so its leakproofness needs
To guarantee, before manufacture, its being sealed property is detected.
When the prior art is detected steel modeling crossover sub, generally use gasket or sealing ring are placed in steel modeling conversion and connect
Head both ends（Steel pipe end and modeling pipe end）Outside, while with the force application apparatus such as jack or hydraulic cylinder be clamped in steel mould crossover sub
Both ends seal to make two ends of gasket or sealing ring and steel modeling crossover sub be formed, the steel modeling after entire sealing are turned
Changing-over head is immersed in the water, then toward being passed through compressed gas and examine its sealing performance inside steel modeling crossover sub.
Above-mentioned test method has the disadvantages that：1, operating process is complicated, and rack heavier-weight need to be by external equipment
Rack is immersed in the water, and the installation of steel modeling crossover sub is also more troublesome；2, pressing plate is pushed to steel using jack
Modeling crossover sub is sealed and sealing ring is placed in outside steel modeling crossover sub both ends, and hydraulic cylinder is used in combination（Or cylinder）It is clamped in
When steel modeling crossover sub both ends are sealed, all more difficult control of dynamics of the two may if the power that pushes or clamp is inadequate
The sealing of steel modeling crossover sub end can be made not firm, to influence the accuracy of experiment, bring the erroneous judgement in quality, push or
If the power of clamping is excessive, steel modeling crossover sub can be made to deform, lead to steel modeling crossover sub end face（Pipe end）Out-of-flatness, from
And so that between steel modeling crossover sub and pressing plate sealing can not be formed, the erroneous judgement in quality is brought, in addition, the power for pushing or clamping
Excessively, it is also possible to directly damage steel and mould crossover sub.
Invention content
It is easy to operate it is an object of the invention to overcome the defect of prior art, and provide a kind of reasonable integral structure, test
As a result accuracy is high, and can guarantee that two pipe ends of steel modeling crossover sub are not easy to be pressed from both sides the sealed leakage detector of damage.
To achieve the goals above, the present invention uses following technical scheme：
A kind of sealed leakage detector, including main engine bed, air feed pump further include blocking cylinder, compression cylinder, two end seals
It closes and horizontal central siphon, the limit base for contacting steel modeling crossover sub one end, is used to support steel modeling crossover sub and steel is made to mould
Crossover sub axis is in the connection supports frame of horizontality, blocks cylinder, compression cylinder, connection supports frame and is arranged at host
On seat, the closure cylinder includes end socket cylinder body, end socket the cylinder piston, end socket piston rod, the scalable direction water of end socket piston rod
Flat, compression cylinder includes compressing cylinder body, compressing the cylinder piston, clamping piston bar, and the scalable direction of clamping piston bar is vertical, compresses
Piston rod is equipped with the positioning plate that crossover sub is moulded for compressing steel, and positioning plate is in above connection supports frame, end socket piston rod
It is equipped with the band moving frame for driving central siphon axially to be moved horizontally along central siphon, central siphon is equipped with cricoid modeling and manages outer end-plate, ring
The outer end-plate of the steel pipe of shape, modeling manage outer end-plate peripheral surface and are equipped with modeling pipe outside plate annular groove, set on the outer end-plate peripheral surface of steel pipe
There is steel pipe outside plate annular groove, it is same with central siphon that the outer end-plate of outer end-plate, steel pipe, modeling pipe outside plate annular groove, steel pipe outside plate annular groove are managed in modeling
Axis, modeling pipe outside plate annular groove are equipped with the modeling pipe exterior seal ring for moulding crossover sub inner wall for contacting steel, are set on steel pipe outside plate annular groove
It is useful for the steel pipe exterior seal ring of contact steel modeling crossover sub inner wall, central siphon is equipped with the first air inlet being connected to central siphon inside
Mouthful, the first air inlet be equipped with the first breather check valve, the first breather check valve can by direction be by central siphon to central siphon
Outside, central siphon outer wall is equipped with the first baroceptor, and the steel modeling crossover sub that connection supports frame is supported is in limit base and envelope
Between gas shutoff cylinder, by being connected to inside air supply pipe and central siphon, the central siphon outer wall is equipped with several be used at the gas supply end of air feed pump
The hollow filling block in steel modeling crossover sub is stretched into, there is hollow filling block hollow lumen, central siphon to be equipped in several and central siphon
The inner cavity pressurized hole of portion's connection, inner cavity pressurized hole are corresponded with hollow lumen, and inner cavity pressurized hole is connected to corresponding hollow lumen.
Preferably, the connection supports frame includes that horizontal support baseboard, two supports vertical and parallel to each other are vertical
Plate, supporting vertical plate are equipped with the V-arrangement support slot that crossover sub is moulded for accommodating steel, opening up, the supporting vertical plate of V-arrangement support slot
Lower end is fixed with support baseboard top surface.
Preferably, the central siphon is equipped with cricoid modeling pipe inner end sealing plate, cricoid steel pipe inner end sealing plate, modeling pipe inner end
Sealing plate peripheral surface is equipped with modeling pipe inner panel annular groove, and steel pipe inner end sealing plate peripheral surface is equipped with steel pipe inner panel annular groove, moulds pipe inner panel ring
Slot is equipped with the modeling pipe inner seal ring that crossover sub inner wall is moulded for contacting steel, and steel pipe inner panel annular groove is equipped with for contacting steel modeling
The steel pipe inner seal ring of crossover sub inner wall, modeling pipe inner end sealing plate, steel pipe inner end sealing plate, modeling pipe inner panel annular groove, steel pipe inner panel ring
Slot is coaxial with central siphon, and modeling pipe inner end sealing plate is between steel pipe inner end sealing plate and the outer end-plate of modeling pipe, at the sealing plate of steel pipe inner end
Outside modeling pipe inner end sealing plate and steel pipe between end-plate, central siphon is equipped with the second air inlet and central siphon being connected to central siphon inside
Inside connection third air inlet, central siphon outer wall be equipped with the second baroceptor, third baroceptor, the first air inlet with
First baroceptor is in outside steel pipe between end-plate and steel pipe inner end sealing plate, the second air inlet and the second baroceptor
It is between steel pipe inner end sealing plate and modeling pipe inner end sealing plate, third air inlet is in modeling pipe inner end with third baroceptor
Between outer end-plate is managed in sealing plate and modeling, the second air inlet is equipped with the second breather check valve, third air inlet equipped with third into
Gas check valve, the second breather check valve can by direction, third breather check valve can by direction be by central siphon extremely
Outside central siphon.
Preferably, the steel pipe exterior seal ring, steel pipe inner seal ring, modeling pipe inner seal ring, modeling pipe exterior seal ring are
Inside has the gas-flow closure circle of inflatable chamber, and the outer end-plate of steel pipe is equipped with will be in steel pipe exterior seal ring inner inflatable chamber and central siphon
The steel pipe outer ring gas tube of portion's connection, steel pipe inner end sealing plate, which is equipped with, to be connected inside steel pipe inner seal ring inner inflatable chamber and central siphon
Logical steel pipe inner ring gas tube, modeling pipe inner end sealing plate is equipped with will mould pipe inner seal ring inner inflatable chamber and central siphon inside is connected to
Pipe inner ring gas tube is moulded, modeling manages outer end-plate and is equipped with the modeling pipe that will be moulded and be connected to inside pipe exterior seal ring inner inflatable chamber and central siphon
Outer ring gas tube.
Preferably, the central siphon is equipped with the pressure release gas vent being connected to central siphon inside, band moving frame is with central siphon by rubbing
Driving structure connection is wiped, friction driving structure includes promoting limit body, retracting limit body, friction band rotating ring, several push-pull rods, is pushed away
Pull rod is horizontal and push-pull rod one end connect band moving frame, push-pull rod other end connection friction band rotating ring, friction band moving ring sleeve are located at axis
On pipe and coaxial with central siphon, friction band rotating ring can move horizontally on central siphon, and friction band rotating ring inner ring surface is equipped with friction sealed
Slot, friction sealed slot are equipped with drag seal, and drag seal is coaxial with central siphon, between drag seal and central siphon lateral wall
It squeezes mutually, promotes limit body, retracts limit body and be in that central siphon is outer and fixed with central siphon, and limit base has for limiting steel
The sealing plate confined planes of the outer end-plate of pipe, between pressure release gas vent is in propulsion limit body and retracts limit body, at friction band rotating ring
Between promoting limit body and retracting limit body, when friction band rotating ring contact promotes limit body, drag seal seals pressure release row
Stomata；When friction band rotating ring contact retracts limit body, drag seal is detached with pressure release gas vent.
Preferably, the propulsion limit body is annular in shape, the limit body that retracts is annular in shape, promotes limit body and central siphon same
It is coaxial with central siphon to retract limit body for axis.
Preferably, the air supply pipe from inside break-make admission line and central siphon by being connected to, the gas supply end of air feed pump connects
The other end of one end of logical air supply pipe, air supply pipe is connected to from one end of break-make air inlet pipe, from the other end and axis of break-make air inlet pipe
Connection inside pipe, friction band rotating ring are equipped with one piece of break-make transverse slat, break-make transverse slat pass through from break-make air inlet pipe and with from break-make into
Tracheae is slidingly sealed cooperation, and break-make transverse slat is equipped with plate venthole, when friction band rotating ring contact promotes limit body, plate venthole with
It is connected to from the inner passage of break-make air inlet pipe；When friction band rotating ring contact retracts limit body, break-make transverse slat will be from break-make air inlet pipe
Inner passage partition.
Preferably, the central siphon lateral wall is equipped with external screw thread, steel pipe inner end sealing plate inner ring surface is moulded in the sealing plate of pipe inner end
Anchor ring is connected by the external screw thread on internal thread and central siphon lateral wall, and central siphon is equipped with inflating port in first, in second
Inflating port, inflating port in first, in second inflating port be connected to inside central siphon；The first air flue is equipped in the sealing plate of steel pipe inner end,
First air flue outer end opening is opened on steel pipe inner end sealing plate inner ring surface, steel in steel pipe inner end sealing plate outer ring surface, the first air flue inner end
Pipe inner ring gas tube one end is connected to steel pipe inner seal ring inner inflatable chamber, the steel pipe inner ring gas tube other end is outside the first air flue
End is stretched into the first air flue, is sealed between steel pipe inner ring gas tube outer tube wall and the air flue inner wall of the first air flue, in the first air flue
Rectify to inflating port in first and is connected to inflating port in first；It moulds and is equipped with the second air flue in the sealing plate of pipe inner end, outside the second air flue
For end opening in modeling pipe inner end sealing plate outer ring surface, the second air flue inner end is opened on modeling pipe inner end sealing plate inner ring surface, modeling pipe inner ring inflation
Pipe one end is connected to modeling pipe inner seal ring inner inflatable chamber, moulds the pipe inner ring gas tube other end and stretch into first from the second air flue outer end
In air flue, moulds and sealed between pipe inner ring gas tube outer tube wall and the air flue inner wall of the second air flue, the second air flue inner end face second
It interior inflating port and is connected to inflating port in second.
Preferably, the steel pipe end for the steel modeling crossover sub that connection supports frame is supported is towards limit base, the propulsion limits
Position body is in modeling and manages between outer end-plate and friction band rotating ring, retracts limit body and is in friction band rotating ring and between moving frame.
The beneficial effects of the invention are as follows：Reasonable integral structure, to steel mould crossover sub positioning and clamping in place, can ensure
Leakproofness but will not press from both sides damage steel modeling crossover sub；With can automatic adjusument sealing structure, can strengthen hyperbar detection when
Sealing effect, maintain the stability of detection process；Many places can disposably be carried out targetedly to detect, it is efficient, effect is good；
Have multiple protective structure and the control structure of coordinated type, can be to avoid the problem caused by various maloperations, and action connects
Continuous property is good, and work efficiency is high, and detection process is smooth efficiently.
Description of the drawings
Fig. 1 is the structural schematic diagram of the present invention；
Fig. 2 is the structural schematic diagram of inventive joint supporting rack；
Fig. 3 is the enlarged drawing at A in Fig. 1；
Fig. 4 is the enlarged drawing at B in Fig. 1；
Fig. 5 is the enlarged drawing at C in Fig. 1；
Fig. 6 is the enlarged drawing at D in Fig. 1；
Fig. 7 is the enlarged drawing at E in Fig. 1.
In figure：Outer end seal is managed in air feed pump 1, air supply pipe 11, sliding rack 12, pump link 13, support sliding rail 14, central siphon 2, modeling
Plate 21, modeling pipe exterior seal ring 211, modeling pipe outer ring gas tube 212, the outer end-plate 22 of steel pipe, steel pipe exterior seal ring 221, outside steel pipe
Enclose gas tube 222, modeling pipe inner end sealing plate 23, modeling pipe inner seal ring 231, modeling pipe inner ring gas tube 232, the second air flue 23a, steel pipe
Inner end sealing plate 24, steel pipe inner seal ring 241, steel pipe inner ring gas tube 242, the first air flue 24a, the first air inlet 2a, second into
Gas port 2b, third air inlet 2c, pressure release gas vent 2d, inflating port 2e in first, inflating port 2f in second, hollow filling block 2g,
Limit base 3, connection supports frame 4, support baseboard 41, supporting vertical plate 42, V-arrangement support slot 43, end socket cylinder body 51, end socket piston rod
52, band moving frame 53, promote limit body 541, retract limit body 542, friction band rotating ring 543, drag seal 5431, push-pull rod
544, cylinder body 61, clamping piston bar 62, positioning plate 63, modeling pipeline section 71, lengths of steel pipes 72 are compressed.
Specific implementation mode
The present invention will be further described with reference to the accompanying drawings and detailed description.
In embodiment as shown in Figures 1 to 7, a kind of sealed leakage detector, including main engine bed, air feed pump 1, further include envelope
Gas shutoff cylinder, compression cylinder, one closed at both ends and horizontal central siphon 2, the limit base 3 for contacting steel modeling crossover sub one end,
It is used to support steel modeling crossover sub and steel modeling crossover sub axis is made to be in the connection supports frame 4 of horizontality, block cylinder, pressure
Tight cylinder, connection supports frame are arranged on main engine bed, and the closures cylinder includes end socket cylinder body 51, close with the sliding of end socket cylinder body
The end socket the cylinder piston for sealing cooperation, the end socket piston rod 52 being connect with end socket the cylinder piston, end socket piston rod level and end socket piston rod
Scalable direction it is horizontal, compression cylinder include compress cylinder body 61, with compress cylinder body and be slidingly sealed cooperation compression the cylinder piston, with
The clamping piston bar 62 of the cylinder piston connection is compressed, clamping piston bar is vertically and the scalable direction of clamping piston bar is vertical, compresses
Piston rod is equipped with the positioning plate 63 that crossover sub is moulded for compressing steel, and positioning plate is in above connection supports frame, end socket piston
Bar is equipped with the band moving frame 53 for driving central siphon axially to be moved horizontally along central siphon, and central siphon is equipped with cricoid modeling and manages outer end-plate
21, the outer end-plate 22 of cricoid steel pipe, modeling manage outer end-plate peripheral surface and are equipped with modeling pipe outside plate annular groove, the outer end-plate periphery of steel pipe
Face is equipped with steel pipe outside plate annular groove, modeling manage the outer end-plate of outer end-plate, steel pipe, mould pipe outside plate annular groove, steel pipe outside plate annular groove with
Central siphon is coaxial, and modeling pipe outside plate annular groove is equipped with the modeling pipe exterior seal ring 211 that crossover sub inner wall is moulded for contacting steel, steel pipe outside plate
Annular groove is equipped with the steel pipe exterior seal ring 221 that crossover sub inner wall is moulded for contacting steel, and central siphon is equipped with and is connected to inside central siphon
The first air inlet 2a, the first air inlet is equipped with the first breather check valve, and the first breather check valve can be served as reasons by direction
To outside central siphon in central siphon, central siphon outer wall is equipped with the first baroceptor, at the steel modeling crossover sub that connection supports frame is supported
In limit base and between blocking cylinder, the gas supply end of air feed pump inside air supply pipe 11 and central siphon by being connected to, the central siphon outer wall
Several hollow filling block 2g for stretching into steel modeling crossover sub are equipped with, hollow filling block has hollow lumen, on central siphon
It is corresponded with inner cavity pressurized hole that is being connected to inside central siphon, inner cavity pressurized hole and hollow lumen equipped with several, inner cavity pressurized hole connects
Lead to corresponding hollow lumen.Connectivity part inside air supply pipe and central siphon is located at modeling and manages between outer end-plate and closure cylinder.First
The reading display end of baroceptor is in outside tested steel modeling crossover sub.The steel modeling conversion that the connection supports frame is supported connects
The steel pipe end of head is towards limit base.Air feed pump is arranged on a sliding rack 12, and air feed pump is connect by pumping link 13 with central siphon,
Main engine bed is equipped with support sliding rail 14, and sliding rack is slidably matched with support sliding rail, and the slidably direction of sliding rack is horizontal.Support is slided
Rail can assist being supported air feed pump, band moving frame etc., prevent end socket piston rod load（Especially downward power）It is excessive, together
When can carry out auxiliary guiding, improve course of work stability.
The lengths of steel pipes 72 and modeling 71 internal diameter of pipeline section of steel modeling crossover sub are not necessarily identical, and usually, modeling pipeline section internal diameter omits
More than lengths of steel pipes internal diameter（Also lengths of steel pipes internal diameter in special circumstances is more than modeling pipeline section internal diameter, here only by taking normal conditions as an example
It is stated, and lengths of steel pipes internal diameter is more than under the situation of modeling pipeline section internal diameter, testing principle is also identical）.Connection supports frame
On can place steel modeling crossover sub（Be usually by lengths of steel pipes frame on connection supports frame, or will modeling pipeline section frame in connector
On supporting rack）, by steel modeling crossover sub one end（Steel pipe end）Against limit base（Steel pipe end in contact limit base, limit base is not
It is sealing structure, without sealing steel pipe end）, clamping piston bar drive positioning plate move down, positioning plate contact steel modeling crossover sub simultaneously
Steel modeling crossover sub is fixed（It pushes down）, stretched out with rear head piston rod, by being driven on central siphon and central siphon with moving frame
It moulds the outer end-plate of the outer end-plate of pipe, steel pipe to stretch into together in steel modeling crossover sub, reaches the outer end-plate of modeling pipe and be in modeling pipe end（Modeling
In pipeline section）, the outer end-plate of steel pipe be in steel pipe end（In lengths of steel pipes）State, and mould the cooperation modeling of pipe exterior seal ring and manage outer end-plate
The modeling pipe end of steel modeling crossover sub is sealed, the steel pipe end that steel is moulded crossover sub by end-plate outside steel pipe exterior seal ring cooperation steel pipe
It seals.Then central siphon inside can be supplied by air supply pipe using air feed pump, gas enters steel through the first air inlet and moulds
In crossover sub, after certain pressure value to be achieved（The pressure value can according in actual use gas or fluid pressure carry out
Setting, generally can be 1 to 8 times of atmospheric pressure）, stop gas supply（Due to the usually included check valve of air feed pump, so steel modeling conversion connects
Gas in head, in central siphon will not then need supplying from gas supply pump reflux and leakage according to the air feed pump without check valve
The gas supply end setting check valve or on-off valve of pump, steel is moulded in crossover sub after being stopped the supple of gas or steam with guarantee, the gas in central siphon will not return
Stream）.After air pressure in tested steel modeling crossover sub is basicly stable, the reading display end of the first baroceptor of continuous observation, if
Numerical value is unchanged in a period of time or numerical value change in the reasonable scope, it is qualified to be tested steel modeling crossover sub air-tightness.It has detected
Cheng Hou, by air feed pump and air supply pipe（Usually cylinder special plastic hose can also use metal bellows etc.）Separation waits for that steel is moulded
After high pressure gas release in crossover sub, in central siphon, central siphon can be pulled out again.In the different detection space of two volume sizes
It is interior, if being inflated to uniform pressure and then leakage equity of gas, then capacious detection space internal drop is smaller, it is capacious
It is larger to detect space internal drop（Although it is identical to reveal gas flow, leakage gas proportion is different）.There is hollow filling
After block, being equivalent to reduces internal detection space, if occurring gas leakage at this time, pressure drop can become apparent from（Baroceptor is read
Number changes also relatively faster）, so setting hollow filling block can allow the present invention to have higher accuracy of detection and preferably inspection
Survey effect.And why be hollow filling block, then it is smaller to allow for hollow quality, will not excessively increase band moving frame, end socket
The load of piston rod, and when inflation, gas, hollow filling block inner and outer air pressure one are also filled in the hollow lumen of hollow filling block
It causes, so being unlikely to deform, the service life is longer.
The connection supports frame includes horizontal 41, two vertical and parallel to each other supporting vertical plates 42 of support baseboard, branch
Support riser be equipped with for accommodate steel mould crossover sub V-arrangement support slot 43, V-arrangement support slot it is opening up, under supporting vertical plate
End is fixed with support baseboard top surface, in a supporting vertical plate：V-arrangement support slot runs through two plate faces of supporting vertical plate.Utilize two
The V-arrangement support slot of a supporting vertical plate upper end is supported and limits to tested steel modeling crossover sub as support construction.
The central siphon is equipped with cricoid modeling pipe inner end sealing plate 23, cricoid steel pipe inner end sealing plate 24, modeling pipe inner end sealing plate
Peripheral surface is equipped with modeling pipe inner panel annular groove, and steel pipe inner end sealing plate peripheral surface is equipped with steel pipe inner panel annular groove, moulds on pipe inner panel annular groove
Equipped with the modeling pipe inner seal ring 231 for moulding crossover sub inner wall for contacting steel, steel pipe inner panel annular groove is equipped with for contacting steel modeling
The steel pipe inner seal ring 241 of crossover sub inner wall, modeling pipe inner end sealing plate, steel pipe inner end sealing plate, modeling pipe inner panel annular groove, steel pipe inner panel
Annular groove is coaxial with central siphon, and modeling pipe inner end sealing plate is between steel pipe inner end sealing plate and the outer end-plate of modeling pipe, steel pipe inner end sealing plate
Be between modeling pipe inner end sealing plate and the outer end-plate of steel pipe, central siphon be equipped with the second air inlet 2b be connected to inside central siphon and
The third air inlet 2c being connected to inside central siphon, central siphon outer wall are equipped with the second baroceptor, third baroceptor, first into
Gas port and the first baroceptor are in outside steel pipe between end-plate and steel pipe inner end sealing plate, the second air inlet and the second air pressure
Sensor is between steel pipe inner end sealing plate and modeling pipe inner end sealing plate, and third air inlet is in modeling with third baroceptor
Between outer end-plate is managed in pipe inner end sealing plate and modeling, the second air inlet is equipped with the second breather check valve, and third air inlet is equipped with
Third breather check valve, the second breather check valve can by direction, third breather check valve can by direction be by axis
To outside central siphon in pipe.The reading display end of second baroceptor, the reading display end of third baroceptor are in tested
Steel is moulded outside crossover sub（The induction end of first baroceptor is in outside steel pipe between end-plate and steel pipe inner end sealing plate, and second
The induction end of baroceptor is between steel pipe inner end sealing plate and modeling pipe inner end sealing plate, at the induction end of third baroceptor
Between modeling pipe inner end sealing plate and modeling manage outer end-plate）.Increase modeling pipe inner end sealing plate and steel pipe inner end sealing plate（With modeling pipe outer end
The outer end-plate of sealing plate, steel pipe is the same, as central siphon is stretched into together in steel modeling crossover sub）, so as to disposably carry out " three sections
Detection ", respectively lengths of steel pipes, modeling pipeline section and linkage section（The Butt Section of lengths of steel pipes and modeling pipeline section）, the outer end-plate of steel pipe and steel
The air-tight cavity of detection lengths of steel pipes is formed between the sealing plate of pipe inner end, forming detection between steel pipe inner end sealing plate and modeling pipe inner end sealing plate connects
The air-tight cavity of section is connect, pipe inner end sealing plate is moulded and the air-tight cavity of formation detection modeling pipeline section between outer end-plate is managed in modeling, air feed pump passes through
First air inlet, the second air inlet, third air inlet are simultaneously inflated each section of air-tight cavity, the first baroceptor, second
Baroceptor, third baroceptor then can be simultaneously to each section of progress air pressure detections, so as to quickly and effectively obtain whether deposit
In crack and leakage, and which section specific leakage part is.
The steel pipe exterior seal ring, steel pipe inner seal ring, modeling pipe inner seal ring, modeling pipe exterior seal ring be it is internal have fill
The gas-flow closure circle of air cavity, the outer end-plate of steel pipe are equipped with the steel that will be connected to inside steel pipe exterior seal ring inner inflatable chamber and central siphon
Pipe outer ring gas tube 222, steel pipe inner end sealing plate are equipped with the steel that will be connected to inside steel pipe inner seal ring inner inflatable chamber and central siphon
Pipe inner ring gas tube 242, modeling pipe inner end sealing plate are equipped with the modeling that will be moulded and be connected to inside pipe inner seal ring inner inflatable chamber and central siphon
Pipe inner ring gas tube 232, modeling manage outer end-plate and are equipped with the modeling that will be moulded and be connected to inside pipe exterior seal ring inner inflatable chamber and central siphon
Pipe outer ring gas tube 212.Further, steel pipe exterior seal ring, steel pipe inner seal ring, modeling pipe inner seal ring, modeling pipe in this programme
Exterior seal ring is gas-flow closure circle, to which its leakproofness can be adjusted.When above-mentioned each sealing ring is conventional seals circle（Such as rubber
The solid sealing ring of glue）, in order to ensure that airtight effect when detection, sealing ring need tightly to press between steel modeling crossover sub inner wall
Patch, this results in the friction when entering steel modeling crossover sub of each sealing ring very big, easily leads into difficult and easy Fast Wearing.
And in the present solution, before detection, above-mentioned each sealing ring is all non-aerating, to which central siphon and each sealing plate, each sealing ring can be smooth
It stretches into steel modeling crossover sub, after stretching into place, air feed pump supplies central siphon inside, and gas is in addition to entering each section of seal chamber
Outside, can also enter steel pipe exterior seal ring through steel pipe outer ring gas tube, steel pipe inner seal ring is entered through steel pipe inner ring gas tube,
Modeling pipe inner seal ring is entered through moulding pipe inner ring gas tube, enters modeling pipe exterior seal ring through moulding pipe outer ring gas tube, to be formed
Each section of sealing.Also, each section of airtight cavity pressure is bigger, and pressure is also bigger in each sealing ring, so having detection air pressure and close
The autonomous adaptation regulating power of envelope ability can effectively prevent sealing insufficient or excessive seal.And it detects and completes, discharge steel modeling turn
In changing-over head and when axis overpressure, high pressure gas can be released in each sealing ring, and each sealing ring connects with steel modeling conversion after pressure release
It is minimum there is no rubbing or rubbing between head, to directly allow each sealing plate on central siphon and central siphon to be detached from steel modeling crossover sub i.e.
It can.After the form for using gas-flow closure circle, " three sections of detections "（Lengths of steel pipes, modeling pipeline section, linkage section）Baroceptor is observed to read
When number, first there is apparent pressure drop in the baroceptor in which section（Beyond zone of reasonableness）, which section gas leakage just illustrated, is existed
Crack or seal defect.In addition, one or several hollow filling blocks are all distributed in lengths of steel pipes, modeling pipeline section, linkage section.
The central siphon is equipped with the pressure release gas vent 2d being connected to central siphon inside, and band moving frame is tied with central siphon by rubbing to drive
Structure connects, and friction driving structure includes promoting limit body 541, retracting limit body 542, friction band rotating ring 543, several push-pull rods
544, push-pull rod is horizontal and push-pull rod one end connect band moving frame, the connection of the push-pull rod other end rub with rotating ring, friction band moving ring sleeve
It is located on central siphon and coaxial with central siphon, friction band rotating ring can move horizontally on central siphon, and friction band rotating ring inner ring surface, which is equipped with, to rub
Seal groove is wiped, friction sealed slot is equipped with drag seal 5431, and drag seal is coaxial with central siphon, drag seal and central siphon
It is squeezed mutually between lateral wall, promotes limit body, retracts limit body and be in that central siphon is outer and fixed with central siphon, and limit base has
The level interval of sealing plate confined planes for limiting end-plate outside steel pipe, the outer end-plate of steel pipe and limit base is less than or equal to steel pipe
The level interval of outer end-plate and central siphon, between pressure release gas vent is in propulsion limit body and retracts limit body, friction band rotating ring
It is between promoting limit body and retracting limit body, when friction band rotating ring contact promotes limit body, drag seal seals pressure release
Gas vent；When friction band rotating ring contact retracts limit body, drag seal is detached with pressure release gas vent.The propulsion limit body is in
Ring-type, the limit body that retracts is annular in shape, promotes limit body coaxial with central siphon, it is coaxial with central siphon to retract limit body.Promote limit
Body is in modeling and manages between outer end-plate and friction band rotating ring, retracts limit body and is in friction band rotating ring and between moving frame.
This programme can realize pressurization protection and releasing pressure automatically.When needing to be detected, end socket piston rod stretches out, and passes through band
Moving frame, push-pull rod carry out band dynamic friction and drive ring set movement, since there is drag seal between friction band moving ring sleeve and central siphon, and
Mutual extrusion friction between drag seal and central siphon lateral wall, so friction band moving ring sleeve can be straight by drag seal at this time
Tape splicing moving axis pipe moves, and so that central siphon is entered steel together with each sealing plate and moulds crossover sub, waits for that the outer end-plate of steel pipe touches limit base
On sealing plate confined planes after, central siphon positioning cannot move on, and the band rotating ring that rubs can continue to push and be advanced until and touch
Limit body, end socket cylinder body is promoted to be stopped（Pressure release gas vent is sealed by drag seal at this time）.In the present solution, only completing
The entirety of central siphon and each sealing plate is stretched into, is positioned, and pressure release gas vent can just be sealed by drag seal, just can smoothly allow central siphon
Inflation, pressurize are realized in interior, each sealing ring, to can just be detected.And after the completion of detecting, end socket piston rod is directly withdrawn,
Since each sealing ring is in swelling state at this time, tightly it is affixed between moulding crossover sub with steel, so central siphon is equal together with each sealing plate
It can not move, end socket piston rod can only will be rubbed and be retracted with rotating ring by band moving frame, push-pull rod, until friction band rotating ring contact drawing
Limit body is returned, and in the process, drag seal can leave pressure release gas vent, and in central siphon, gas can be discharged in each sealing ring,
In each sealing ring after gas discharge, sealing effect disappears, and steel is moulded in crossover sub（That is in three seal sections）Gas can also arrange
Go out（It is no longer tightly affixed between each sealing ring and steel modeling crossover sub at this time）, to continue to withdraw with end socket piston rod,
Central siphon can also be drawn out together with each sealing plate, be detached from steel modeling crossover sub.It is dynamic that the above process eliminates all extra pressure releases
Make（Separation, docking operation such as air supply pipe and air feed pump）, disposably realize first release stress, delay pulls out the dynamic of central siphon afterwards
Make, whole process is reasonable, coherent, efficient.
The central siphon lateral wall is equipped with external screw thread, and steel pipe inner end sealing plate inner ring surface, modeling pipe inner end sealing plate inner ring surface are logical
It crosses internal thread to be connected with the external screw thread on central siphon lateral wall, central siphon is equipped with inflating port 2e in first, inflating port in second
2f, inflating port in first, in second inflating port be connected to inside central siphon；The first air flue 24a is equipped in the sealing plate of steel pipe inner end, the
One air flue outer end opening is opened on steel pipe inner end sealing plate inner ring surface, steel pipe in steel pipe inner end sealing plate outer ring surface, the first air flue inner end
Inner ring gas tube one end is connected to steel pipe inner seal ring inner inflatable chamber, the steel pipe inner ring gas tube other end is from the first air flue outer end
It stretches into the first air flue, is sealed between steel pipe inner ring gas tube outer tube wall and the air flue inner wall of the first air flue, the first air flue inner end
It inflating port and is connected to inflating port in first in face first；It moulds and is equipped with the second air flue 23a in the sealing plate of pipe inner end, outside the second air flue
For end opening in modeling pipe inner end sealing plate outer ring surface, the second air flue inner end is opened on modeling pipe inner end sealing plate inner ring surface, modeling pipe inner ring inflation
Pipe one end is connected to modeling pipe inner seal ring inner inflatable chamber, moulds the pipe inner ring gas tube other end and stretch into first from the second air flue outer end
In air flue, moulds and sealed between pipe inner ring gas tube outer tube wall and the air flue inner wall of the second air flue, the second air flue inner end face second
It interior inflating port and is connected to inflating port in second.Steel pipe inner seal ring is fixed on steel pipe inner panel annular groove, and modeling pipe inner seal ring is solid
It is scheduled on modeling pipe inner panel annular groove.After having segmentation detection function, the whole detection inside steel modeling crossover sub can be still carried out,
Before needing to carry out the inside overall tightness detection of steel modeling crossover sub, turn steel pipe inner end sealing plate, modeling pipe inner end sealing plate are only needed,
The first air flue inner end is allowed to be misaligned with inflating port in first, not be connected to, inflating port is allowed in the second air flue inner end and second to be misaligned,
Be not connected to, thus, be inflated again, pressurize, detection when, only steel pipe exterior seal ring and modeling pipe exterior seal ring play sealing
Effect, so as to realize the overall tightness detection inside steel modeling crossover sub（Remaining step is identical as segmentation detection）.It is whole
After the completion of physical examination is surveyed, segmentation detection is if desired carried out again, then first turn steel pipe inner end sealing plate, modeling pipe inner end sealing plate, make in steel pipe
End-plate, modeling pipe inner end seals sheet reset can re-start segmentation detection.
In addition, there is minimum probability, it may appear that following situations：Steel moulds the leakage position on crossover sub, just by connector
The detection location structure such as supporting rack, positioning plate blocks, and gas leakage, needle are not detected among out so as to cause these leakage positions when detection
If further increasing testing result accuracy in this regard, wanting to improve, steel modeling crossover sub can be existed after the completion of one-time detection
Connection supports frame upper edge steel moulds crossover sub axis and rotates an angle, such as 20 degree, thus, connection supports frame, positioning plate
Or on positioning plate for contact the structure etc. of steel modeling crossover sub be contacted again steel modeling crossover sub position can with it is preceding primary
Contact position it is different, in conjunction with testing result twice, so that it may with must tap mould crossover sub leakproofness whether the conclusion of qualification.
Claims (4)
1. a kind of sealed leakage detector, including main engine bed, air feed pump, characterized in that further include blocking cylinder, compression cylinder, one
Root central siphon closed at both ends and horizontal, is used to support steel modeling crossover sub at the limit base for contacting steel modeling crossover sub one end
And steel modeling crossover sub axis is made to be in the connection supports frame of horizontality, it blocks cylinder, compression cylinder, connection supports frame and is all provided with
It sets on main engine bed, the closure cylinder includes end socket cylinder body, end socket the cylinder piston, end socket piston rod, and end socket piston rod is stretched
Contracting direction is horizontal, and compression cylinder includes compressing cylinder body, compressing the cylinder piston, clamping piston bar, the scalable direction of clamping piston bar
Vertically, clamping piston bar is equipped with the positioning plate that crossover sub is moulded for compressing steel, and positioning plate is in above connection supports frame, envelope
Head piston rod is equipped with the band moving frame for driving central siphon axially to be moved horizontally along central siphon, and central siphon is equipped with cricoid modeling pipe outer end
The outer end-plate of sealing plate, cricoid steel pipe, modeling manage outer end-plate peripheral surface and are equipped with modeling pipe outside plate annular groove, the outer end-plate periphery of steel pipe
Face is equipped with steel pipe outside plate annular groove, modeling manage the outer end-plate of outer end-plate, steel pipe, mould pipe outside plate annular groove, steel pipe outside plate annular groove with
Central siphon is coaxial, and modeling pipe outside plate annular groove is equipped with the modeling pipe exterior seal ring that crossover sub inner wall is moulded for contacting steel, steel pipe outside plate ring
Slot is equipped with the steel pipe exterior seal ring that crossover sub inner wall is moulded for contacting steel, and central siphon is equipped with first be connected to central siphon inside
Air inlet, the first air inlet be equipped with the first breather check valve, the first breather check valve can by direction be by central siphon extremely
Outside central siphon, central siphon outer wall is equipped with the first baroceptor, and the steel modeling crossover sub that connection supports frame is supported is in limit base
Between blocking cylinder, by being connected to inside air supply pipe and central siphon, the central siphon outer wall is equipped with several at the gas supply end of air feed pump
For stretching into the hollow filling block in steel modeling crossover sub, there is hollow filling block hollow lumen, central siphon to be equipped with several and axis
The inner cavity pressurized hole being connected to inside pipe, inner cavity pressurized hole are corresponded with hollow lumen, and pressurized hole connection in inner cavity is corresponding hollow
Inner cavity, the central siphon are equipped with cricoid modeling pipe inner end sealing plate, cricoid steel pipe inner end sealing plate, mould on the sealing plate peripheral surface of pipe inner end
Equipped with modeling pipe inner panel annular groove, steel pipe inner end sealing plate peripheral surface is equipped with steel pipe inner panel annular groove, and modeling pipe inner panel annular groove, which is equipped with, to be used for
The modeling pipe inner seal ring of steel modeling crossover sub inner wall is contacted, steel pipe inner panel annular groove is equipped with moulds crossover sub inner wall for contacting steel
Steel pipe inner seal ring, modeling pipe inner end sealing plate, steel pipe inner end sealing plate, modeling pipe inner panel annular groove, steel pipe inner panel annular groove are same with central siphon
Axis, modeling pipe inner end sealing plate are between steel pipe inner end sealing plate and the outer end-plate of modeling pipe, and steel pipe inner end sealing plate is in modeling pipe inner end seals
Between the outer end-plate of plate and steel pipe, central siphon is equipped with the be connected to the second air inlet be connected to inside central siphon, with central siphon inside
Three air inlets, central siphon outer wall are equipped with the second baroceptor, third baroceptor, the first air inlet and the first air pressure sensing
Device is in outside steel pipe between end-plate and steel pipe inner end sealing plate, and the second air inlet and the second baroceptor are in steel pipe
Between end-plate and modeling pipe inner end sealing plate, third air inlet is in modeling pipe inner end sealing plate with third baroceptor and modeling pipe is outer
Between end-plate, the second air inlet be equipped with the second breather check valve, third air inlet be equipped with third breather check valve, second
Breather check valve can by direction, third breather check valve can be by direction by central siphon to outside central siphon, the steel
Pipe exterior seal ring, steel pipe inner seal ring, modeling pipe inner seal ring, modeling pipe exterior seal ring are the internal gas-flow closure with inflatable chamber
Circle, the outer end-plate of steel pipe are equipped with the steel pipe outer ring gas tube that will be connected to inside steel pipe exterior seal ring inner inflatable chamber and central siphon,
Steel pipe inner end sealing plate is equipped with the steel pipe inner ring gas tube that will be connected to inside steel pipe inner seal ring inner inflatable chamber and central siphon, modeling pipe
Inner end sealing plate is equipped with the modeling pipe inner ring gas tube that will be moulded and be connected to inside pipe inner seal ring inner inflatable chamber and central siphon, modeling pipe outer end
Sealing plate is equipped with the modeling pipe outer ring gas tube that will be moulded and be connected to inside pipe exterior seal ring inner inflatable chamber and central siphon, is set on the central siphon
The pressure release gas vent for having and being connected to inside central siphon, band moving frame are connect with central siphon by the driving structure that rubs, and rub driving structure packet
It includes and promotes limit body, retracts limit body, friction band rotating ring, several push-pull rods, push-pull rod is horizontal and the connection of push-pull rod one end drives
Frame, push-pull rod other end connection friction band rotating ring, friction band moving ring sleeve are located on central siphon and coaxial with central siphon, and friction band rotating ring can
It being moved horizontally on central siphon, friction band rotating ring inner ring surface is equipped with friction sealed slot, and friction sealed slot is equipped with drag seal,
Drag seal is coaxial with central siphon, is squeezed mutually between drag seal and central siphon lateral wall, promotes limit body, retracts limit body
It is in outside central siphon and is fixed with central siphon, limit base has the sealing plate confined planes for limiting end-plate outside steel pipe, pressure release row
Between stomata is in propulsion limit body and retracts limit body, between friction band rotating ring is in propulsion limit body and retracts limit body,
When friction band rotating ring contact promotes limit body, drag seal seals pressure release gas vent；Friction band rotating ring contact retracts limit body
When, drag seal is detached with pressure release gas vent；The central siphon lateral wall be equipped with external screw thread, steel pipe inner end sealing plate inner ring surface,
It moulds pipe inner end sealing plate inner ring surface to be connected by the external screw thread on internal thread and central siphon lateral wall, central siphon is equipped in first
Inflating port, inflating port in second, inflating port in first, in second inflating port be connected to inside central siphon；In the sealing plate of steel pipe inner end
Equipped with the first air flue, the first air flue outer end opening is opened on steel pipe inner end in steel pipe inner end sealing plate outer ring surface, the first air flue inner end
Sealing plate inner ring surface, steel pipe inner ring gas tube one end is connected to steel pipe inner seal ring inner inflatable chamber, steel pipe inner ring gas tube is another
End is stretched into from the first air flue outer end in the first air flue, close between steel pipe inner ring gas tube outer tube wall and the air flue inner wall of the first air flue
Envelope inflating port and is connected to inflating port in first in the first air flue inner end face first；It moulds in the sealing plate of pipe inner end and is equipped with the second gas
Road, for the second air flue outer end opening in modeling pipe inner end sealing plate outer ring surface, the second air flue inner end is opened on modeling pipe inner end sealing plate inner ring surface,
Modeling pipe inner ring gas tube one end is connected to modeling pipe inner seal ring inner inflatable chamber, moulds the pipe inner ring gas tube other end from the second air flue
Outer end is stretched into the first air flue, is moulded and is sealed between pipe inner ring gas tube outer tube wall and the air flue inner wall of the second air flue, the second air flue
It inflating port and is connected to inflating port in second in inner end face second.
2. a kind of sealed leakage detector according to claim 1, characterized in that the connection supports frame includes horizontal branch
Bottom plate, two vertical and parallel to each other supporting vertical plates are supportted, supporting vertical plate is equipped with the V-arrangement branch that crossover sub is moulded for accommodating steel
Support slot, V-arrangement support slot it is opening up, supporting vertical plate lower end is fixed with support baseboard top surface.
3. a kind of sealed leakage detector according to claim 1, characterized in that the propulsion limit body is annular in shape, described
It is annular in shape to retract limit body, promotes limit body coaxial with central siphon, it is coaxial with central siphon to retract limit body.
4. a kind of sealed leakage detector according to claim 1, characterized in that the steel modeling that the connection supports frame is supported
The steel pipe end of crossover sub promotes limit body to be in modeling and manages between outer end-plate and friction band rotating ring, retract limit towards limit base
Position body is in friction band rotating ring and between moving frame.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610182484.5A CN105757056B (en) | 2016-03-26 | 2016-03-26 | A kind of sealed leakage detector |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610182484.5A CN105757056B (en) | 2016-03-26 | 2016-03-26 | A kind of sealed leakage detector |
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| CN105757056A CN105757056A (en) | 2016-07-13 |
| CN105757056B true CN105757056B (en) | 2018-08-17 |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106623579B (en) * | 2016-10-08 | 2018-07-24 | 济南大学 | Interior high-pressure molding pressing device |
| CN109469830B (en) * | 2018-11-29 | 2020-02-18 | 无锡华润燃气有限公司 | Quick detection device of natural gas line |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE387157C (en) * | 1918-01-01 | 1923-12-21 | Johann Godra | Device for testing pipe seals |
| GB201435A (en) * | 1922-09-04 | 1923-08-02 | British Mannesmann Tube Compan | Appliance for testing pipe joints and the like |
| GB212715A (en) * | 1923-02-10 | 1924-03-20 | Frederick Leonard Ball | Improvements in or relating to apparatus for testing pipe-joints for leakage |
| NO137291L (en) * | 1969-11-03 | |||
| DE2932280A1 (en) * | 1979-08-09 | 1981-02-26 | Baumann & Burmeister | Tube testing system - uses inserted cylinder forming test chamber between inflated sealing rings and leaving free inner passage |
| JPS61246647A (en) * | 1985-04-24 | 1986-11-01 | Osaka Gas Co Ltd | Leakage inspection apparatus for existing conduit |
| DE8914185U1 (en) * | 1989-12-01 | 1990-01-25 | Fabritz, Gerhard, 4150 Krefeld | Duct tester |
| GB2304904A (en) * | 1995-09-02 | 1997-03-26 | Weatherford Oil Tool | Testing threaded joints and threaded members for leaks |
| US6131441A (en) * | 1996-12-02 | 2000-10-17 | Berube; Guy | Apparatus and method for isolating or testing a pipe segment |
| DE29714238U1 (en) * | 1997-08-08 | 1998-07-09 | JT-Elektronik GmbH, 88131 Lindau | Socket tester |
| DE10219211A1 (en) * | 2002-04-29 | 2003-11-06 | Arpe Ag Sissach | Leak detection device, especially for use in waste water pipe systems, comprises a piston and cylinder arrangement for applying a constant force to a water filled test chamber formed over the suspect or test pipe length |
| FI123174B (en) * | 2010-11-01 | 2012-12-14 | Maricap Oy | Method and apparatus for subjecting a pipe joint to proof printing |
| CN204679227U (en) * | 2015-06-26 | 2015-09-30 | 宁波市宇华电器有限公司 | A kind of PE joint for plastic tube leak tightness testing equipment |
| CN204679231U (en) * | 2015-06-26 | 2015-09-30 | 宁波市宇华电器有限公司 | A kind of steel plastic pipe pick-up unit |
| CN105203274A (en) * | 2015-10-15 | 2015-12-30 | 宁波新合博园林机械有限公司 | Pipe fitting sealing property testing device |
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2016
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Effective date of registration: 20201023 Address after: 233200, Anhui, Chuzhou province Dingyuan County Town Garden Lake Road Patentee after: CHUZHOU RUIJING GARDEN CONSTRUCTION Co.,Ltd. Address before: 311835, Zhejiang, Shaoxing province Zhuji city shop Town Village on the Village No. 99 Patentee before: Xuan Yueluo |
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Address after: 233200 room 108, shop 2, Milan impression community, west side of Baotou Road, Dingcheng Town, Dingyuan County, Chuzhou City, Anhui Province Patentee after: Chuzhou Ruijing Garden Co.,Ltd. Address before: 233200 Huayuan East Road, Ding Town, Dingyuan County, Chuzhou, Anhui Patentee before: CHUZHOU RUIJING GARDEN CONSTRUCTION Co.,Ltd. |