CN105823610A - Pressurization detection device - Google Patents
Pressurization detection device Download PDFInfo
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- CN105823610A CN105823610A CN201610182958.6A CN201610182958A CN105823610A CN 105823610 A CN105823610 A CN 105823610A CN 201610182958 A CN201610182958 A CN 201610182958A CN 105823610 A CN105823610 A CN 105823610A
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- pipe
- central siphon
- steel
- steel pipe
- mould
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M3/00—Investigating fluid-tightness of structures
- G01M3/02—Investigating fluid-tightness of structures by using fluid or vacuum
- G01M3/26—Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors
- G01M3/28—Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors for pipes, cables or tubes; for pipe joints or seals; for valves ; for welds
- G01M3/2853—Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors for pipes, cables or tubes; for pipe joints or seals; for valves ; for welds for pipe joints or seals
Abstract
The present invention discloses a pressurization detection device. The pressurization detection device comprises a host base, an air feed pump, a blocking cylinder, a compaction cylinder, an axle tube, a spacing base and a joint bracing frame. The compaction piston rod is provided with a location board, and an end socket piston rod is provided with a driving rack; the axle tube is provided with a plastic pipe outer end blanking plate, a steel pipe outer end blanking plate, a plastic pipe external seal ring and a steel pipe external seal ring; the axle tube is provided with a first air intake, and the first air intake is provided with a first air intake non-return valve; the outer wall of the axle tube is provided with a first air pressure sensor, the steel-plastic conversion connector supported by the joint bracing frame is located between the spacing base and the blocking cylinder, and the air supply pipe of the air feed pump internally communicates with the axle tube through the air supply pipe. The high-pressure gas detector is reasonable in integration structure, is able to locate and clamp the steel-plastic conversion connector in place and guarantee the sealing without damaging the steel-plastic conversion connector, and has a sealing structure with adaptive regulation so as to reinforce the sealing effect at high-pressure detection.
Description
Technical field
The invention belongs to pipe fitting joint close property technical field of measurement and test, particularly relate to a kind of pressurization detection equipment.
Background technology
Adapter moulded by steel, adapter is moulded also known as PE steel, it is widely used among current production, life, (outer combustion gas pipeline mostly is PE pipeline such as steel will to be used in a large number to mould adapter in combustion gas, natural gas transportation pipeline, enter indoor and mostly then be steel pipe, switching process needs utilize steel to mould adapter).Adapter moulded by steel, itself comprise lengths of steel pipes (one section of steel pipe) and mould pipeline section (usually one section of PE pipe), formation linkage section is docked in one end of lengths of steel pipes with the one end moulding pipeline section, linkage section is many to be formed with moulding the clamping of pipeline section one end by lengths of steel pipes one end, and (linkage section would generally arrange some concaveconvex structures and coordinate clamping to utilize sealing ring to carry out sealing, as the flange in lengths of steel pipes fastens mutually with the draw-in groove moulded on pipeline section, anchor ear can also be arranged outside linkage section hold tightly further), the front of motor of lengths of steel pipes is referred to as steel pipe end, the front of motor moulding pipeline section is referred to as moulding pipe end, mould pipe end and can mould pipe (PE pipe) welding with waiting to dock, steel pipe end can be connected with steel tube screw thread to be docked, weld or docked by other structure.Mould adapter due to steel and be applied to gas, liquid transportation art, so its sealing needs to be guaranteed, before dispatching from the factory, it will be carried out sealing propertytest.
Steel is moulded adapter when detecting by prior art, generally use sealing gasket or sealing ring to be placed in steel and mould the outside at adapter two ends (steel pipe end and mould pipe end), it is clamped in steel with the force application apparatus such as jack or hydraulic cylinder simultaneously and moulds adapter two ends, so that sealing gasket or sealing ring are moulded two ends of adapter with steel and are formed sealing, steel after whole sealing is moulded adapter be immersed in the water, then mould toward steel and be passed through compressed gas inside adapter and check its sealing property.
Above-mentioned test method has the disadvantages that 1, operating process is complicated, its frame heavier-weight, frame need to be immersed in the water by external equipment, and steel is moulded the installation of adapter and the most more bothered；2, use pressing plate under jack thus steel is moulded adapter and seals and sealing ring is placed in steel and moulds outside adapter two ends, and with hydraulic cylinder (or cylinder) be clamped in steel mould adapter two ends seal time, the most difficult control of dynamics of both, the power pressed down or clamp is not, steel may be made to mould the sealing of adapter end the most firm, thus affect the accuracy of test, bring qualitative erroneous judgement, the power pressed down or clamp is excessively, steel can be made to mould adapter deform, steel is caused to mould adapter end face (pipe end) out-of-flatness, so that steel is moulded cannot form sealing between adapter and pressing plate, bring qualitative erroneous judgement, additionally, the power pressed down or clamp is excessively, it is likely to directly damage steel and moulds adapter.
Summary of the invention
The present invention is to overcome deficiency of the prior art, it is provided that a kind of reasonable integral structure, easy to operate, and test result accuracy is high, and can guarantee that steel is moulded the pressurization that two pipe ends of adapter are difficult to by being pressed from both sides damage and detected equipment.
To achieve these goals, the present invention is by the following technical solutions:
nullA kind of pressurization detection equipment，Including main engine bed、Air feed pump，Also include blocking cylinder、Compression cylinder、Limit base、A piece closed at both ends and the central siphon of level、Mould adapter for supporting steel and make steel mould adapter axis to be in the connection supports frame of level，Closure cylinder、Compression cylinder、Connection supports frame is arranged on main engine bed，Described closure cylinder includes end socket cylinder body、End socket cylinder piston、End socket piston rod，The scalable direction level of end socket piston rod，Compression cylinder includes compressing cylinder body、Hold-down cylinder piston、Clamping piston bar，The scalable direction of clamping piston bar is vertical，Clamping piston bar is provided with the location-plate moulding adapter for compressing steel，Location-plate is in above connection supports frame，End socket piston rod is provided with the band moving frame for driving central siphon axially to move horizontally along central siphon，Central siphon is provided with ring-type moulding and manages outer end-plate、The outer end-plate of ring-type steel pipe，Mould the outer end-plate outer peripheral face of pipe to be provided with and mould pipe outside plate annular groove，The outer end-plate outer peripheral face of steel pipe is provided with steel pipe outside plate annular groove，Mould the outer end-plate of pipe、The outer end-plate of steel pipe、Mould pipe outside plate annular groove、Steel pipe outside plate annular groove is all coaxial with central siphon，Mould pipe outside plate annular groove to be provided with and mould pipe exterior seal ring for contact that steel moulds adapter inwall，Steel pipe outside plate annular groove is provided with the steel pipe exterior seal ring moulding adapter inwall for contacting steel，Central siphon is provided with first air inlet that connect internal with central siphon，First air inlet is provided with the first breather check valve，Tong Guo the direction of the first breather check valve be by central siphon to outside central siphon，Central siphon outer wall is provided with the first baroceptor，The steel that connection supports frame is supported is moulded adapter and is between limit base and closure cylinder，The supply end of air feed pump connects by air supply pipe and central siphon are internal,Limit base is provided with the elastic ring moulding adapter one end for contacting steel,Described mainframe is provided with supporting guide，Supporting guide is provided with support bar，Support bar lower end is slidably connected with supporting guide，The slidably direction of support bar is parallel with the movable direction of central siphon，Post upper connects band moving frame,Described central siphon outer wall is provided with some for stretching into that steel is moulded in adapter hollow filling pieces，Hollow filling piece has hollow lumen，Central siphon is provided with some inner chamber pressurized holes of connecting internal with central siphon，Inner chamber pressurized hole and hollow lumen one_to_one corresponding，The hollow lumen that the connection of inner chamber pressurized hole is corresponding.
As preferably, described connection supports frame includes the support baseboard of level, two supporting vertical plate vertical and parallel to each other, supporting vertical plate is provided with the V-arrangement support slot moulding adapter for accommodating steel, V-arrangement support slot opening up, and supporting vertical plate lower end is fixed with support baseboard end face.
nullAs preferably，Described central siphon is provided with ring-type moulds pipe the inner shrouding、Ring-type steel pipe the inner shrouding，Mould pipe the inner shrouding outer peripheral face to be provided with and mould pipe inner panel annular groove，Steel pipe the inner shrouding outer peripheral face is provided with steel pipe inner panel annular groove，Mould pipe inner panel annular groove to be provided with and mould pipe inner seal ring for contact that steel moulds adapter inwall，Steel pipe inner panel annular groove is provided with the steel pipe inner seal ring moulding adapter inwall for contacting steel，Mould pipe the inner shrouding、Steel pipe the inner shrouding、Mould pipe inner panel annular groove、Steel pipe inner panel annular groove is all coaxial with central siphon，Mould pipe the inner shrouding be in steel pipe the inner shrouding and mould between the outer end-plate of pipe，Steel pipe the inner shrouding is in be moulded between pipe the inner shrouding and the outer end-plate of steel pipe，Central siphon is provided with second air inlet that connect internal with central siphon、Threeth air inlet that connect internal with central siphon，Central siphon outer wall is provided with the second baroceptor、3rd baroceptor，It is outer between end-plate and steel pipe the inner shrouding that first air inlet and the first baroceptor are all in steel pipe，Second air inlet and the second baroceptor are all in steel pipe the inner shrouding and mould between the shrouding of pipe the inner，3rd air inlet and the 3rd baroceptor are all in be moulded pipe the inner shrouding and moulds between the outer end-plate of pipe，Second air inlet is provided with the second breather check valve，3rd air inlet is provided with the 3rd breather check valve，The direction passed through of the second breather check valve、Tong Guo the direction of the 3rd breather check valve all for by central siphon to outside central siphon.
As preferably, described steel pipe exterior seal ring, steel pipe inner seal ring, mould pipe inner seal ring, mould pipe exterior seal ring to be inside there is the gas-flow closure circle of inflatable chamber, the outer end-plate of steel pipe is provided with internal to steel pipe exterior seal ring inner inflatable chamber and the central siphon steel pipe outer ring gas tube connected, steel pipe the inner shrouding is provided with internal to steel pipe inner seal ring inner inflatable chamber and the central siphon steel pipe inner ring gas tube connected, mould pipe the inner shrouding be provided with by mould pipe inner seal ring inner inflatable chamber and central siphon internal connect mould pipe inner ring gas tube, mould manage outer end-plate be provided with by mould connect inside pipe exterior seal ring inner inflatable chamber and central siphon mould pipe outer ring gas tube.
nullAs preferably，Described central siphon is provided with the pressure release steam vent that connect internal with central siphon，Band moving frame is connected by friction driving structure with central siphon，Friction driving structure includes advancing limit body、Retract limit body、Friction belt rotating ring、Some push-pull bars，Push-pull bar level and push-pull bar one end connect band moving frame，The push-pull bar other end connects friction belt rotating ring，Friction belt moving ring sleeve is located on central siphon and coaxial with central siphon，Friction belt rotating ring can move horizontally on central siphon，Friction belt rotating ring inner ring surface is provided with friction sealed groove，Friction sealed groove is provided with drag seal，Drag seal is coaxial with central siphon，Extrude mutually between drag seal and central siphon lateral wall，Advance limit body、Retract limit body be all in outside central siphon and all fix with central siphon，Limit base has the shrouding confined planes for the outer end-plate of spacing steel pipe，Pressure release steam vent is in propelling limit body and retracts between limit body，Friction belt rotating ring is in propelling limit body and retracts between limit body，When the contact of friction belt rotating ring advances limit body，Drag seal seals pressure release steam vent；When the contact of friction belt rotating ring retracts limit body, drag seal separates with pressure release steam vent.
As preferably, described propelling limit body in the form of a ring, described in retract limit body in the form of a ring, advance limit body coaxial with central siphon, retract limit body coaxial with central siphon.
As preferably, described air supply pipe is by connecting from break-make admission line and central siphon inside, one end of the supply end connection air supply pipe of air feed pump, the other end of air supply pipe connects from one end of break-make air inlet pipe, connect from the other end of break-make air inlet pipe and central siphon inside, friction belt rotating ring is provided with one piece of break-make transverse slat, break-make transverse slat passes from break-make air inlet pipe and coordinates with from break-make air inlet pipe slipper seal, break-make transverse slat is provided with plate passage, when the contact of friction belt rotating ring advances limit body, plate passage connects with the inner passage from break-make air inlet pipe；When the contact of friction belt rotating ring retracts limit body, break-make transverse slat will cut off from the inner passage of break-make air inlet pipe.
As preferably, described central siphon lateral wall is provided with external screw thread, steel pipe the inner shrouding inner ring surface, mould pipe the inner shrouding inner ring surface and be all connected with the external screw thread on central siphon lateral wall by female thread, central siphon be provided with first in inflation inlet, inflation inlet in second, inflation inlet in first, inflation inlet is all internal with central siphon in second connects；It is provided with the first air flue in the shrouding of steel pipe the inner, first air flue outer end opening is in steel pipe the inner shrouding outer ring surface, first air flue the inner is opened on steel pipe the inner shrouding inner ring surface, steel pipe inner ring gas tube one end connects with steel pipe inner seal ring inner inflatable chamber, the steel pipe inner ring gas tube other end stretches in the first air flue from the first air flue outer end, seal between steel pipe inner ring gas tube outer tube wall and the air flue inwall of the first air flue, rectify inflation inlet in first in the first air flue and connect with inflation inlet in first；It is provided with the second air flue in moulding pipe the inner shrouding, second air flue outer end opening is in moulding pipe the inner shrouding outer ring surface, second air flue the inner is opened on moulds pipe the inner shrouding inner ring surface, mould pipe inner ring gas tube one end and mould pipe inner seal ring inner inflatable chamber and connect, mould the pipe inner ring gas tube other end and stretch in the first air flue from the second air flue outer end, mould and seal between pipe inner ring gas tube outer tube wall and the air flue inwall of the second air flue, rectify inflation inlet in second in the second air flue and connect with inflation inlet in second.
As preferably, the steel that connection supports frame is supported moulds the steel pipe end of adapter towards limit base, and described propelling limit body is in be moulded between the outer end-plate of pipe and friction belt rotating ring, retracts limit body and is between friction belt rotating ring and band moving frame.
The invention has the beneficial effects as follows: reasonable integral structure, location and clamping that steel is moulded adapter put in place, can ensure sealing but will not press from both sides damage steel and mould adapter；Have can the sealing structure of Automatic adjusument, sealing effectiveness during hyperbar detection can be strengthened, maintain the stability of detection process；Can disposably carry out many places to detect targetedly, efficiency is high, effective；Possessing the control structure of multiple protective structure and coordinated type, can avoid the problem that various maloperation is caused, and action seriality is good, work efficiency is high, and detection process is smooth efficiently.
Accompanying drawing explanation
Fig. 1 is the structural representation of the present invention；
Fig. 2 is the structural representation of inventive joint bracing frame；
Fig. 3 is the enlarged drawing in Fig. 1 at A；
Fig. 4 is the enlarged drawing in Fig. 1 at B；
Fig. 5 is the enlarged drawing figure in Fig. 1 at C；
Fig. 6 is the enlarged drawing in Fig. 1 at D；
Fig. 7 is the enlarged drawing in Fig. 1 at E.
nullIn figure: air feed pump 1、Air supply pipe 11、Travelling carriage 12、Pump link 13、Support slide rail 14、Central siphon 2、Mould the outer end-plate 21 of pipe、Mould pipe exterior seal ring 211、Mould pipe outer ring gas tube 212、The outer end-plate 22 of steel pipe、Steel pipe exterior seal ring 221、Steel pipe outer ring gas tube 222、Mould pipe the inner shrouding 23、Mould pipe inner seal ring 231、Mould pipe inner ring gas tube 232、Second air flue 23a、Steel pipe the inner shrouding 24、Steel pipe inner seal ring 241、Steel pipe inner ring gas tube 242、First air flue 24a、First air inlet 2a、Second air inlet 2b、3rd air inlet 2c、Pressure release steam vent 2d、Inflation inlet 2e in first、Inflation inlet 2f in second、Hollow filling piece of 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、Advance limit body 541、Retract limit body 542、Friction belt rotating ring 543、Drag seal 5431、Push-pull bar 544、Compress cylinder body 61、Clamping piston bar 62、Location-plate 63、Mould pipeline section 71、Lengths of steel pipes 72、Supporting guide 81、Support bar 82.
Detailed description of the invention
The present invention will be further described with detailed description of the invention below in conjunction with the accompanying drawings.
nullIn embodiment as shown in Figures 1 to 7，A kind of pressurization detection equipment，Including main engine bed、Air feed pump 1，Also include blocking cylinder、Compression cylinder、Limit base 3、A piece closed at both ends and the central siphon 2 of level、Mould adapter for supporting steel and make steel mould adapter axis to be in the connection supports frame 4 of level，Closure cylinder、Compression cylinder、Connection supports frame is arranged on main engine bed，Described closure cylinder includes end socket cylinder body 51、The end socket cylinder piston coordinated with end socket cylinder body slipper seal、The end socket piston rod 52 being connected with end socket cylinder piston，The scalable direction level of end socket piston rod level and end socket piston rod，Compression cylinder includes compressing cylinder body 61、The hold-down cylinder piston coordinated with compression cylinder body slipper seal、The clamping piston bar 62 being connected with hold-down cylinder piston，Vertical and clamping piston bar the scalable direction of clamping piston bar is vertical，Clamping piston bar is provided with the location-plate 63 moulding adapter for compressing steel，Location-plate is in above connection supports frame，End socket piston rod is provided with the band moving frame 53 for driving central siphon axially to move horizontally along central siphon，Central siphon is provided with ring-type moulding and manages outer end-plate 21、The outer end-plate 22 of ring-type steel pipe，Mould the outer end-plate outer peripheral face of pipe to be provided with and mould pipe outside plate annular groove，The outer end-plate outer peripheral face of steel pipe is provided with steel pipe outside plate annular groove，Mould the outer end-plate of pipe、The outer end-plate of steel pipe、Mould pipe outside plate annular groove、Steel pipe outside plate annular groove is all coaxial with central siphon，Mould pipe outside plate annular groove to be provided with and mould pipe exterior seal ring 211 for contact that steel moulds adapter inwall，Steel pipe outside plate annular groove is provided with the steel pipe exterior seal ring 221 moulding adapter inwall for contacting steel，Central siphon is provided with the first air inlet 2a that connect internal with central siphon，First air inlet is provided with the first breather check valve，Tong Guo the direction of the first breather check valve be by central siphon to outside central siphon，Central siphon outer wall is provided with the first baroceptor，The steel that connection supports frame is supported is moulded adapter and is between limit base and closure cylinder，The supply end of air feed pump connects by air supply pipe 11 and central siphon are internal,Limit base is provided with the elastic ring moulding adapter one end for contacting steel,Described mainframe is provided with supporting guide 81，Supporting guide is provided with support bar 82，Support bar lower end is slidably connected with supporting guide，Support bar level can slide on supporting guide，The slidably direction of support bar is parallel with the movable direction of central siphon，Post upper connects band moving frame,Described central siphon outer wall is provided with some for stretching into the hollow filling piece of 2g that steel is moulded in adapter，Hollow filling piece has hollow lumen，Central siphon is provided with some inner chamber pressurized holes of connecting internal with central siphon，Inner chamber pressurized hole and hollow lumen one_to_one corresponding，The hollow lumen that the connection of inner chamber pressurized hole is corresponding.It is coaxial that adapter moulded by elastic ring and steel, and elastic ring can be made up of rubber or other elastomeric material.Connectivity part within air supply pipe and central siphon is being moulded between the outer end-plate of pipe and closure cylinder.The reading display end of the first baroceptor is in tested steel and moulds outside adapter.The steel that described connection supports frame is supported moulds the steel pipe end of adapter towards limit base.Air feed pump is arranged on a travelling carriage 12, and air feed pump is connected with central siphon by pump link 13, and main engine bed is provided with support slide rail 14, and travelling carriage is slidably matched with supporting slide rail, the slidably direction level of travelling carriage.Support slide rail can assist and be supported air feed pump, band moving frame etc., prevents end socket piston rod load (the most downward power) excessive, can carry out auxiliary simultaneously and guide, improve work process stability.
It is the most identical with moulding pipeline section 71 internal diameter that the lengths of steel pipes 72 of adapter moulded by steel, as a rule, mould pipeline section internal diameter (also to have in particular cases lengths of steel pipes internal diameter to be more than slightly larger than lengths of steel pipes internal diameter and mould pipeline section internal diameter, the most only state as a example by normal conditions, and lengths of steel pipes internal diameter is more than under the situation moulding pipeline section internal diameter, Cleaning Principle is also identical).Can place on connection supports frame steel mould adapter (be as a rule by lengths of steel pipes frame on connection supports frame, or pipeline section frame will be moulded on connection supports frame), steel is moulded adapter one end (steel pipe end) against elastic ring (the steel pipe end in contact elastic ring on limit base, elastic ring is not to seal structure, it is not necessary to seal steel pipe end.nullOwing to steel pipe end end face does not ensures that substantially flat，Compared to rigid contact，Elastic ring is used to carry out transition，Can preferably ensure contact effect，Elastic ring possesses deformation adaptability，Even if steel pipe end end face is uneven，Also can the most fully steel pipe end be contacted spacing，And the risk that the extruding of steel pipe end is impaired can be reduced)，Clamping piston bar drives location-plate to move down，Location-plate contact steel is moulded adapter and steel is moulded adapter fixes (pushing down)，Stretch out with rear head piston rod，Moulding on central siphon and central siphon is driven to manage outer end-plate by band moving frame、The outer end-plate of steel pipe stretches into steel together and moulds in adapter，Reach to mould the outer end-plate of pipe to be in and mould pipe end (moulding in pipeline section)、The outer end-plate of steel pipe is in the state of steel pipe end (in lengths of steel pipes)，And mould pipe exterior seal ring and coordinate to mould and manage outer end-plate and steel is moulded the pipe end of moulding of adapter seal、The steel pipe end seal that steel pipe exterior seal ring coordinates steel pipe outer end-plate that steel is moulded adapter is lived.Then air feed pump can be utilized by air supply pipe, central siphon inside to be supplied, gas enters steel through the first air inlet and moulds in adapter, after certain pressure value to be achieved, (this force value can be set according to gas time actually used or fluid pressure, generally can be 1 to 8 times of atmospheric pressure), stop supply and (generally carry check valve due to air feed pump, so steel is moulded in adapter, gas in central siphon will not be from air feed pump backflow and leakage, according to the air feed pump without check valve, then need the supply end at air feed pump that check valve or on-off valve are set, after stopping the supple of gas or steam with guarantee, steel is moulded in adapter, gas in central siphon will not reflux).Until tested steel mould adapter internal gas pressure basicly stable after, the reading display end of continuous observation the first baroceptor, if in a period of time, numerical value is unchanged or change in value in the reasonable scope, it is qualified that adapter air-tightness moulded by tested steel.After having detected, air feed pump is separated with air supply pipe (usually cylinder special plastic flexible pipe, it is also possible to metal bellows etc.), after the gases at high pressure release in adapter moulded by steel, in central siphon, can again pull out central siphon.Supporting guide is arranged on mainframe, and band moving frame is supported by supporting guide by support bar, it is to avoid on end socket piston rod and band moving frame, stress is excessive, can effectively protect end socket piston rod and band moving frame, reinforced structure stability.During work, can slide on supporting guide in support bar lower end, support bar supports band moving frame the most all the time, can effectively protect end socket piston rod.In the detection space that two volume size are different, if being inflated to uniform pressure, then revealing equity of gas, the most capacious detection space internal drop is less, and capacious detection space internal drop is compared with big (although it is identical to reveal gas flow, but it is different to reveal gas proportion).After having had hollow filling piece, be equivalent to decrease internal detection space, if now there is gas leakage, pressure drop can become apparent from (change of baroceptor reading is also the most faster), the present invention can be allowed to possess higher accuracy of detection and more preferable Detection results so arranging hollow filling piece.And why be hollow filling piece, then allow for hollow quality less, will not too increase band moving frame, the load of end socket piston rod, and during inflation, the hollow lumen of hollow filling piece being also filled with gas, hollow filling piece of inner and outer air pressure is consistent, so being unlikely to deform, service life is longer.
Described connection supports frame includes 41, two supporting vertical plate vertical and parallel to each other 42 of support baseboard of level, supporting vertical plate is provided with the V-arrangement support slot 43 moulding adapter for accommodating steel, V-arrangement support slot opening up, supporting vertical plate lower end is fixed with support baseboard end face, in a supporting vertical plate: V-arrangement support slot runs through two plate faces of supporting vertical plate.Utilize the V-arrangement support slot of two supporting vertical plate upper ends as supporting construction, tested steel is moulded adapter and is supported with spacing.
nullDescribed central siphon is provided with ring-type moulds pipe the inner shrouding 23、Ring-type steel pipe the inner shrouding 24，Mould pipe the inner shrouding outer peripheral face to be provided with and mould pipe inner panel annular groove，Steel pipe the inner shrouding outer peripheral face is provided with steel pipe inner panel annular groove，Mould pipe inner panel annular groove to be provided with and mould pipe inner seal ring 231 for contact that steel moulds adapter inwall，Steel pipe inner panel annular groove is provided with the steel pipe inner seal ring 241 moulding adapter inwall for contacting steel，Mould pipe the inner shrouding、Steel pipe the inner shrouding、Mould pipe inner panel annular groove、Steel pipe inner panel annular groove is all coaxial with central siphon，Mould pipe the inner shrouding be in steel pipe the inner shrouding and mould between the outer end-plate of pipe，Steel pipe the inner shrouding is in be moulded between pipe the inner shrouding and the outer end-plate of steel pipe，Central siphon is provided with the second air inlet 2b that connect internal with central siphon、The threeth air inlet 2c that connect internal with central siphon，Central siphon outer wall is provided with the second baroceptor、3rd baroceptor，It is outer between end-plate and steel pipe the inner shrouding that first air inlet and the first baroceptor are all in steel pipe，Second air inlet and the second baroceptor are all in steel pipe the inner shrouding and mould between the shrouding of pipe the inner，3rd air inlet and the 3rd baroceptor are all in be moulded pipe the inner shrouding and moulds between the outer end-plate of pipe，Second air inlet is provided with the second breather check valve，3rd air inlet is provided with the 3rd breather check valve，The direction passed through of the second breather check valve、Tong Guo the direction of the 3rd breather check valve all for by central siphon to outside central siphon.The reading display end of the second baroceptor, the reading display end of the 3rd baroceptor are all in tested steel and mould adapter outer (it is outer between end-plate and steel pipe the inner shrouding that the induction end of the first baroceptor is in steel pipe, the induction end of the second baroceptor is in steel pipe the inner shrouding and moulds between the shrouding of pipe the inner, and the induction end of the 3rd baroceptor is in moulds pipe the inner shrouding and moulds between the outer end-plate of pipe).nullAdd mould pipe the inner shrouding and steel pipe the inner shrouding (with mould the outer end-plate of pipe、The outer end-plate of steel pipe is the same，Stretch into steel together to mould in adapter along with central siphon)，Such that it is able to disposably carry out " three sections of detections "，It is respectively lengths of steel pipes、Mould pipeline section and linkage section (lengths of steel pipes and the Butt Section moulding pipeline section)，The outer air-tight cavity forming detection lengths of steel pipes between end-plate and steel pipe the inner shrouding of steel pipe，Steel pipe the inner shrouding and mould between the shrouding of pipe the inner formed detection linkage section air-tight cavity，Mould pipe the inner shrouding and mould to manage to be formed between outer end-plate and detect the air-tight cavity moulding pipeline section，Air feed pump passes through the first air inlet、Second air inlet、Each section of air-tight cavity is inflated by the 3rd air inlet simultaneously，First baroceptor、Second baroceptor、3rd baroceptor then can carry out air pressure detection to each section simultaneously，Thus can the most effectively draw whether there is crack and leakage，And which section is concrete leakage part be.
Described steel pipe exterior seal ring, steel pipe inner seal ring, mould pipe inner seal ring, mould pipe exterior seal ring to be inside there is the gas-flow closure circle of inflatable chamber, the outer end-plate of steel pipe is provided with internal to steel pipe exterior seal ring inner inflatable chamber and the central siphon steel pipe outer ring gas tube 222 connected, steel pipe the inner shrouding is provided with internal to steel pipe inner seal ring inner inflatable chamber and the central siphon steel pipe inner ring gas tube 242 connected, mould pipe the inner shrouding be provided with by mould pipe inner seal ring inner inflatable chamber and central siphon internal connect mould pipe inner ring gas tube 232, mould manage outer end-plate be provided with by mould connect inside pipe exterior seal ring inner inflatable chamber and central siphon mould pipe outer ring gas tube 212.Further, steel pipe exterior seal ring, steel pipe inner seal ring in this programme, mould pipe inner seal ring, mould pipe exterior seal ring and be gas-flow closure circle, thus its sealing can regulate.When above-mentioned each sealing ring is conventional seals circle (sealing ring as solid in rubber), in order to ensure airtight effect during detection, sealing ring needs and steel is moulded and tightly overlayed between adapter inwall, this results in the friction when adapter moulded by entrance steel of each sealing ring and greatly, is easily caused entrance difficulty and easy Fast Wearing.And in this programme, before detection, above-mentioned each sealing ring is not inflated, thus central siphon and each shrouding, each sealing ring can stretch into steel smoothly and mould in adapter, stretch into after putting in place, central siphon inside is supplied by air feed pump, gas is in addition to entering each section of annular seal space, also can enter into steel pipe exterior seal ring through steel pipe outer ring gas tube, enter into steel pipe inner seal ring through steel pipe inner ring gas tube, enter into and mould pipe inner seal ring, enter into and mould pipe exterior seal ring, to form each section of sealing through moulding pipe outer ring gas tube through moulding pipe inner ring gas tube.Further, each section of airtight cavity pressure is the biggest, and in each sealing ring, pressure is the biggest, so possess detected air pressure and sealability independently adapts to regulating power, can effectively prevent from sealing not enough or excessive seal.And detected, discharged steel and mould in adapter and during axle overpressure, each sealing ring inner high voltage gas can be released, after pressure release, each sealing ring and steel are moulded and be there is not friction between adapter or rub minimum, thus directly allow each shrouding on central siphon and central siphon depart from steel and mould adapter.After have employed the form of gas-flow closure circle, when " three sections of detections " (lengths of steel pipes, mould pipeline section, linkage section) observes baroceptor reading, first there is obvious pressure drop (beyond zone of reasonableness) in baroceptor in which section, just illustrates which section leaks gas, there is crack or seal defect.Additionally, lengths of steel pipes, mould and be all distributed one or several hollow filling piece in pipeline section, linkage section.
nullDescribed central siphon is provided with the pressure release steam vent 2d that connect internal with central siphon，Band moving frame is connected by friction driving structure with central siphon，Friction driving structure includes advancing limit body 541、Retract limit body 542、Friction belt rotating ring 543、Some push-pull bars 544，Push-pull bar level and push-pull bar one end connect band moving frame，The push-pull bar other end connects friction belt rotating ring，Friction belt moving ring sleeve is located on central siphon and coaxial with central siphon，Friction belt rotating ring can move horizontally on central siphon，Friction belt rotating ring inner ring surface is provided with friction sealed groove，Friction sealed groove is provided with drag seal 5431，Drag seal is coaxial with central siphon，Extrude mutually between drag seal and central siphon lateral wall，Advance limit body、Retract limit body be all in outside central siphon and all fix with central siphon，Limit base has the shrouding confined planes for the outer end-plate of spacing steel pipe，The outer end-plate of steel pipe and the level interval of limit base are less than or equal to the outer end-plate of steel pipe and the level interval of central siphon，Pressure release steam vent is in propelling limit body and retracts between limit body，Friction belt rotating ring is in propelling limit body and retracts between limit body，When the contact of friction belt rotating ring advances limit body，Drag seal seals pressure release steam vent；When the contact of friction belt rotating ring retracts limit body, drag seal separates with pressure release steam vent.Described propelling limit body in the form of a ring, described in retract limit body in the form of a ring, advance limit body coaxial with central siphon, retract limit body coaxial with central siphon.Advance limit body to be in mould between the outer end-plate of pipe and friction belt rotating ring, retract limit body and be between friction belt rotating ring and band moving frame.
This programme can realize pressurization protection and releasing pressure automatically.When needs detect, end socket piston rod stretches out, by band moving frame, push-pull bar drives friction belt moving ring sleeve to move, owing to there is drag seal between friction belt moving ring sleeve and central siphon, and mutual extrusion friction between drag seal and central siphon lateral wall, so now friction belt moving ring sleeve can directly drive central siphon to move by drag seal, make central siphon can enter steel together with each shrouding and mould adapter, after the outer end-plate of steel pipe touches the shrouding confined planes on limit base, central siphon positions, can not move on, and friction belt rotating ring can continue promotion and be advanced until and touch propelling limit body, end socket cylinder body quits work (now pressure release steam vent is sealed by drag seal).In this programme, the entirety only completing central siphon and each shrouding stretches into, positions, and pressure release steam vent just can be sealed by drag seal, just can allow in central siphon smoothly, realize inflation, pressurize in each sealing ring, thus just can detect.And after having detected, end socket piston rod is directly regained, owing to the most each sealing ring is in swelling state, and steel is moulded and is tightly affixed between adapter, so central siphon all cannot move together with each shrouding, end socket piston rod can only be by band moving frame, friction belt rotating ring is retracted by push-pull bar, until the contact of friction belt rotating ring retracts limit body, and in the process, drag seal can leave pressure release steam vent, in central siphon, in each sealing ring, gas can be discharged, after in each sealing ring, gas is discharged, sealing effectiveness disappears, the gas of adapter interior (in i.e. three seal sections) moulded by steel also can discharge (the most each sealing ring and steel are moulded and be the most tightly affixed between adapter), thus along with the continuation of end socket piston rod is regained, central siphon also can be drawn out together with each shrouding, depart from steel and mould adapter.Said process eliminate all of unnecessary pressure release action (as air supply pipe separate with air feed pump, docking operation), disposably achieve and first discharge pressure, the action of rear time delay pull-out central siphon, whole process rationally, coherent, efficiently.
Described central siphon lateral wall is provided with external screw thread, steel pipe the inner shrouding inner ring surface, mould pipe the inner shrouding inner ring surface and be all connected with the external screw thread on central siphon lateral wall by female thread, central siphon be provided with first in inflation inlet 2e, inflation inlet 2f in second, inflation inlet in first, inflation inlet is all internal with central siphon in second connects；The first air flue 24a it is provided with in the shrouding of steel pipe the inner, first air flue outer end opening is in steel pipe the inner shrouding outer ring surface, first air flue the inner is opened on steel pipe the inner shrouding inner ring surface, steel pipe inner ring gas tube one end connects with steel pipe inner seal ring inner inflatable chamber, the steel pipe inner ring gas tube other end stretches in the first air flue from the first air flue outer end, seal between steel pipe inner ring gas tube outer tube wall and the air flue inwall of the first air flue, rectify inflation inlet in first in the first air flue and connect with inflation inlet in first；The second air flue 23a it is provided with in moulding pipe the inner shrouding, second air flue outer end opening is in moulding pipe the inner shrouding outer ring surface, second air flue the inner is opened on moulds pipe the inner shrouding inner ring surface, mould pipe inner ring gas tube one end and mould pipe inner seal ring inner inflatable chamber and connect, mould the pipe inner ring gas tube other end and stretch in the first air flue from the second air flue outer end, mould and seal between pipe inner ring gas tube outer tube wall and the air flue inwall of the second air flue, rectify inflation inlet in second in the second air flue and connect with inflation inlet in second.Steel pipe inner seal ring is fixed on steel pipe inner panel annular groove, moulds pipe inner seal ring and is fixed on and moulds on pipe inner panel annular groove.After having had segmentation detection function, still can carry out steel and mould the whole detection within adapter, when needs carry out before steel moulds adapter internal overall tightness detection, only need turn steel pipe the inner shrouding, mould pipe the inner shrouding, make the first air flue inner and in first, inflation inlet does not lines up, do not connect, make the second air flue inner and in second, inflation inlet does not lines up, do not connect, thus, it is inflated again, pressurize, during detection, only steel pipe exterior seal ring and mould pipe exterior seal ring and play sealing function, such that it is able to realize steel to mould overall tightness detection (remaining step is identical with segmentation detection) within adapter.After whole detection completes, carry out segmentation detection the most again, then first turn steel pipe the inner shrouding, mould pipe the inner shrouding, make steel pipe the inner shrouding, mould pipe inner end seals sheet reset and can re-start segmentation detection.
In addition, there is minimum probability, there will be situations below: the leakage position on adapter moulded by steel, just by connection supports frame, the detection and location structures such as location-plate are blocked, thus these leakage positions are not detected among out gas leakage when causing detection, for this, testing result accuracy is improved further if wanting to improve, can be after one-time detection completes, steel is moulded adapter on connection supports frame, moulds adapter axis one angle of rotation along steel, such as 20 degree, thus, connection supports frame, on location-plate or location-plate for contact steel mould the structure etc. of adapter again touch steel mould the position of adapter can be different from previous contact position, in conjunction with the testing result of twice, just can tap and mould the conclusion that adapter sealing is the most qualified.
Claims (8)
- null1. a pressurization detection equipment，Including main engine bed、Air feed pump，It is characterized in that，Also include blocking cylinder、Compression cylinder、Limit base、A piece closed at both ends and the central siphon of level、Mould adapter for supporting steel and make steel mould adapter axis to be in the connection supports frame of level，Closure cylinder、Compression cylinder、Connection supports frame is arranged on main engine bed，Described closure cylinder includes end socket cylinder body、End socket cylinder piston、End socket piston rod，The scalable direction level of end socket piston rod，Compression cylinder includes compressing cylinder body、Hold-down cylinder piston、Clamping piston bar，The scalable direction of clamping piston bar is vertical，Clamping piston bar is provided with the location-plate moulding adapter for compressing steel，Location-plate is in above connection supports frame，End socket piston rod is provided with the band moving frame for driving central siphon axially to move horizontally along central siphon，Central siphon is provided with ring-type moulding and manages outer end-plate、The outer end-plate of ring-type steel pipe，Mould the outer end-plate outer peripheral face of pipe to be provided with and mould pipe outside plate annular groove，The outer end-plate outer peripheral face of steel pipe is provided with steel pipe outside plate annular groove，Mould the outer end-plate of pipe、The outer end-plate of steel pipe、Mould pipe outside plate annular groove、Steel pipe outside plate annular groove is all coaxial with central siphon，Mould pipe outside plate annular groove to be provided with and mould pipe exterior seal ring for contact that steel moulds adapter inwall，Steel pipe outside plate annular groove is provided with the steel pipe exterior seal ring moulding adapter inwall for contacting steel，Central siphon is provided with first air inlet that connect internal with central siphon，First air inlet is provided with the first breather check valve，Tong Guo the direction of the first breather check valve be by central siphon to outside central siphon，Central siphon outer wall is provided with the first baroceptor，The steel that connection supports frame is supported is moulded adapter and is between limit base and closure cylinder，The supply end of air feed pump connects by air supply pipe and central siphon are internal,Limit base is provided with the elastic ring moulding adapter one end for contacting steel,Described mainframe is provided with supporting guide，Supporting guide is provided with support bar，Support bar lower end is slidably connected with supporting guide，The slidably direction of support bar is parallel with the movable direction of central siphon，Post upper connects band moving frame,Described central siphon outer wall is provided with some for stretching into that steel is moulded in adapter hollow filling pieces，Hollow filling piece has hollow lumen，Central siphon is provided with some inner chamber pressurized holes of connecting internal with central siphon，Inner chamber pressurized hole and hollow lumen one_to_one corresponding，The hollow lumen that the connection of inner chamber pressurized hole is corresponding.
- A kind of pressurization detection equipment the most according to claim 1, it is characterized in that, described connection supports frame includes the support baseboard of level, two supporting vertical plate vertical and parallel to each other, supporting vertical plate is provided with the V-arrangement support slot moulding adapter for accommodating steel, V-arrangement support slot opening up, supporting vertical plate lower end is fixed with support baseboard end face.
- nullA kind of pressurization detection equipment the most according to claim 1，It is characterized in that，Described central siphon is provided with ring-type moulds pipe the inner shrouding、Ring-type steel pipe the inner shrouding，Mould pipe the inner shrouding outer peripheral face to be provided with and mould pipe inner panel annular groove，Steel pipe the inner shrouding outer peripheral face is provided with steel pipe inner panel annular groove，Mould pipe inner panel annular groove to be provided with and mould pipe inner seal ring for contact that steel moulds adapter inwall，Steel pipe inner panel annular groove is provided with the steel pipe inner seal ring moulding adapter inwall for contacting steel，Mould pipe the inner shrouding、Steel pipe the inner shrouding、Mould pipe inner panel annular groove、Steel pipe inner panel annular groove is all coaxial with central siphon，Mould pipe the inner shrouding be in steel pipe the inner shrouding and mould between the outer end-plate of pipe，Steel pipe the inner shrouding is in be moulded between pipe the inner shrouding and the outer end-plate of steel pipe，Central siphon is provided with second air inlet that connect internal with central siphon、Threeth air inlet that connect internal with central siphon，Central siphon outer wall is provided with the second baroceptor、3rd baroceptor，It is outer between end-plate and steel pipe the inner shrouding that first air inlet and the first baroceptor are all in steel pipe，Second air inlet and the second baroceptor are all in steel pipe the inner shrouding and mould between the shrouding of pipe the inner，3rd air inlet and the 3rd baroceptor are all in be moulded pipe the inner shrouding and moulds between the outer end-plate of pipe，Second air inlet is provided with the second breather check valve，3rd air inlet is provided with the 3rd breather check valve，The direction passed through of the second breather check valve、Tong Guo the direction of the 3rd breather check valve all for by central siphon to outside central siphon.
- A kind of pressurization detection equipment the most according to claim 3, it is characterized in that, described steel pipe exterior seal ring, steel pipe inner seal ring, mould pipe inner seal ring, mould pipe exterior seal ring to be inside there is the gas-flow closure circle of inflatable chamber, the outer end-plate of steel pipe is provided with internal to steel pipe exterior seal ring inner inflatable chamber and the central siphon steel pipe outer ring gas tube connected, steel pipe the inner shrouding is provided with internal to steel pipe inner seal ring inner inflatable chamber and the central siphon steel pipe inner ring gas tube connected, mould pipe the inner shrouding be provided with by mould pipe inner seal ring inner inflatable chamber and central siphon internal connect mould pipe inner ring gas tube, mould manage outer end-plate be provided with by mould connect inside pipe exterior seal ring inner inflatable chamber and central siphon mould pipe outer ring gas tube.
- nullA kind of pressurization detection equipment the most according to claim 4，It is characterized in that，Described central siphon is provided with the pressure release steam vent that connect internal with central siphon，Band moving frame is connected by friction driving structure with central siphon，Friction driving structure includes advancing limit body、Retract limit body、Friction belt rotating ring、Some push-pull bars，Push-pull bar level and push-pull bar one end connect band moving frame，The push-pull bar other end connects friction belt rotating ring，Friction belt moving ring sleeve is located on central siphon and coaxial with central siphon，Friction belt rotating ring can move horizontally on central siphon，Friction belt rotating ring inner ring surface is provided with friction sealed groove，Friction sealed groove is provided with drag seal，Drag seal is coaxial with central siphon，Extrude mutually between drag seal and central siphon lateral wall，Advance limit body、Retract limit body be all in outside central siphon and all fix with central siphon，Limit base has the shrouding confined planes for the outer end-plate of spacing steel pipe，Pressure release steam vent is in propelling limit body and retracts between limit body，Friction belt rotating ring is in propelling limit body and retracts between limit body，When the contact of friction belt rotating ring advances limit body，Drag seal seals pressure release steam vent；When the contact of friction belt rotating ring retracts limit body, drag seal separates with pressure release steam vent.
- A kind of pressurization detection equipment the most according to claim 5, is characterized in that, described propelling limit body in the form of a ring, described in retract limit body in the form of a ring, advance limit body coaxial with central siphon, retract limit body coaxial with central siphon.
- A kind of pressurization detection equipment the most according to claim 4, it is characterized in that, described central siphon lateral wall is provided with external screw thread, steel pipe the inner shrouding inner ring surface, mould pipe the inner shrouding inner ring surface and be all connected with the external screw thread on central siphon lateral wall by female thread, central siphon be provided with first in inflation inlet, inflation inlet in second, inflation inlet in first, inflation inlet is all internal with central siphon in second connects；It is provided with the first air flue in the shrouding of steel pipe the inner, first air flue outer end opening is in steel pipe the inner shrouding outer ring surface, first air flue the inner is opened on steel pipe the inner shrouding inner ring surface, steel pipe inner ring gas tube one end connects with steel pipe inner seal ring inner inflatable chamber, the steel pipe inner ring gas tube other end stretches in the first air flue from the first air flue outer end, seal between steel pipe inner ring gas tube outer tube wall and the air flue inwall of the first air flue, rectify inflation inlet in first in the first air flue and connect with inflation inlet in first；It is provided with the second air flue in moulding pipe the inner shrouding, second air flue outer end opening is in moulding pipe the inner shrouding outer ring surface, second air flue the inner is opened on moulds pipe the inner shrouding inner ring surface, mould pipe inner ring gas tube one end and mould pipe inner seal ring inner inflatable chamber and connect, mould the pipe inner ring gas tube other end and stretch in the first air flue from the second air flue outer end, mould and seal between pipe inner ring gas tube outer tube wall and the air flue inwall of the second air flue, rectify inflation inlet in second in the second air flue and connect with inflation inlet in second.
- 8. according to a kind of pressurization detection equipment described in claim 5 or 6, it is characterized in that, the steel that described connection supports frame is supported moulds the steel pipe end of adapter towards limit base, advance limit body to be in mould between the outer end-plate of pipe and friction belt rotating ring, retract limit body and be between friction belt rotating ring and band moving frame.
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| CN109469830A (en) * | 2018-11-29 | 2019-03-15 | 秦飞 | A kind of natural gas line device for fast detecting |
| CN114193395A (en) * | 2021-12-31 | 2022-03-18 | 中国航空制造技术研究院 | Mounting tool with monitoring function |
| CN114354074A (en) * | 2022-01-07 | 2022-04-15 | 淄博市特种设备检验研究院 | Pressure pipeline pressure detection equipment capable of detecting position of air leakage point |
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Also Published As
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| CN105823610B (en) | 2019-01-25 |
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