CN205479945U - A insert stifled frock for heavy -calibre return bend auto -lock hydraulical pressure test apparatus - Google Patents
A insert stifled frock for heavy -calibre return bend auto -lock hydraulical pressure test apparatus Download PDFInfo
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- CN205479945U CN205479945U CN201620260785.0U CN201620260785U CN205479945U CN 205479945 U CN205479945 U CN 205479945U CN 201620260785 U CN201620260785 U CN 201620260785U CN 205479945 U CN205479945 U CN 205479945U
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- stifled
- pipe fitting
- flange
- elbow pipe
- insert
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- 238000012360 testing method Methods 0.000 title claims abstract description 52
- 239000004429 Calibre Substances 0.000 title abstract 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 58
- 230000000903 blocking effect Effects 0.000 claims description 4
- 238000001514 detection method Methods 0.000 abstract description 7
- 238000001125 extrusion Methods 0.000 abstract description 3
- 238000009434 installation Methods 0.000 abstract description 3
- 208000037656 Respiratory Sounds Diseases 0.000 abstract description 2
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 230000002706 hydrostatic effect Effects 0.000 abstract 4
- ZZUFCTLCJUWOSV-UHFFFAOYSA-N furosemide Chemical compound C1=C(Cl)C(S(=O)(=O)N)=CC(C(O)=O)=C1NCC1=CC=CO1 ZZUFCTLCJUWOSV-UHFFFAOYSA-N 0.000 abstract 1
- 238000002360 preparation method Methods 0.000 abstract 1
- 238000007789 sealing Methods 0.000 description 16
- 229910001141 Ductile iron Inorganic materials 0.000 description 6
- 230000000694 effects Effects 0.000 description 4
- 230000015572 biosynthetic process Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000005266 casting Methods 0.000 description 2
- 239000006260 foam Substances 0.000 description 2
- 239000010721 machine oil Substances 0.000 description 2
- 239000003921 oil Substances 0.000 description 2
- 206010059875 Device ineffective Diseases 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 230000000740 bleeding effect Effects 0.000 description 1
- 230000002153 concerted effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
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- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
- Examining Or Testing Airtightness (AREA)
Abstract
The utility model provides an insert stifled frock for heavy -calibre return bend auto -lock hydraulical pressure test apparatus, it utilizes special hydraulic press to carry out the water pressure detection to elbow pipe fitting to have overcome prior art, elbow pipe fitting arc pipe shaft very easily leads to the fact the problem of deformation and crackle, the characteristic is equipped with and inserts stifled flange inserting stifled bellmouth tip external diameter, be equipped with on inserting stifled flange and insert stifled flange through -hole, be equipped with hydrostatic test gas vent and hydrostatic test outlet on inserting stifled head, in using, through insert stifled flange and elbow pipe fitting socket for the flange bolt -up realize that the interlocking is sealed, it compresses tightly the cooperation with the elbow pipe fitting socket to utilize side hydro -cylinder on the hydraulic press will insert stifled bellmouth, use with the stifled frock cooperation of holding of elbow pipe fitting female end installation, hydrostatic test can carry out, the beneficial effects are that simple structure, has the commonality under the same condition of elbow pipe fitting nominal diameter, it can carry out hydrostatic test to need not special hydraulic press, it receives extrusion deformation crack problem to have stopped elbow pipe fitting, can practice thrift simultaneously the investment cost of the large -scale special hydraulic press of preparation.
Description
Technical field
This utility model belongs to device for testing hydraulic pressure of pipe fitting technical field, blocks up frock particularly to a kind of for inserting of big diameter elbow self-locking water test unit.
Background technology
For the nodular cast iron pipe fittings of pressure-bearing by ISO2531:2009 international standard and GB/T13295 2013 national standard requirement, tubing products must carry out hydraulic pressure detection before dispatching from the factory totally, and nominal diameter is 1Mpa more than the nodular cast iron pipe fittings minimum test pressure of more than DN700 specification.nullIn prior art，The pipe fitting water pressure test of different size shape is completed by dedicated water press，And special hydraulic press is to bend pipe tools class (11.25 ° in prior art，22.5°，45°，90 °) pipe fitting detection have bigger limitation，During the detection of particularly more than DN1400 specification heavy caliber socket joint bend pipe tools hydraulic pressure, end face seal is the most difficult，It is seated on the lip block of slip chassis bottom during the detection of bend pipe tools class pipe fitting，Bell and spigot end face is installed the flat rubber cushion sealed，Utilize dedicated water press that bend pipe tools is carried out hydraulic pressure detection，There is problems of，Bend pipe tools arc pipe shaft easily causes deformation and crackle，And，Bend pipe tools diameter is the biggest，Required sealing thrust is the biggest，The probability of bend pipe tools deformation is the biggest，In addition，Bell and spigot end face is installed the flat rubber cushion sealed，When carrying out large caliber bend water pressure test of pipe fitting，Also easy compressive deformation，The seam causing bend pipe tools leaks，Once leak，Band setting-out can tear flat rubber cushion，In addition，Bend pipe tools diameter is the biggest，Required sealing thrust is the biggest，As nominal diameter DN2600，Bellmouth maximum inner diameter is 2830mm，Cylinder thrust is up to 6287KN，So large-scale hydraulic press investment of the gantry frame structure of high thrust is huge，General factory seldom uses.
The patent of invention of Patent No. ZL201110369773.3 discloses a kind of heavy-caliber elbow pipe fitting water pressure test seal device, this patent of invention is to arrange bushing pipe in pipe fitting, all outward equipped with plug set on each ring flange of bushing pipe, by bushing pipe and being tightly connected that plug overlaps, the bearing area making caliber reduces, thus reduce cylinder thrust, preferably solve the bend pipe tools existing for heavy caliber cast tube bend pipe tools hydraulic pressure test and be easily deformed the problem that the seam with bend pipe tools occurs leakage.But, this patent of invention all adds bushing pipe due to needs at whole inside pipe fitting, described bushing pipe is arc-shaped tubular-shaped structures, if the outer wall of bushing pipe is provided with arterial highway reinforcement, by bushing pipe and being tightly connected that plug overlaps, it is achieved the closure to two bellmouths in bend pipe tools, therefore intensity and requirement on machining accuracy to bushing pipe are higher, once bushing pipe compressive deformation, just loses sealing function, causes whole device ineffective；And, bushing pipe is that the two ends mouth of pipe by bushing pipe sets built-in ring flange respectively with being tightly connected of plug set, the outer card of each ring flange is provided with seal groove, in the seal groove of each ring flange, sealing ring is installed, the end that connects of plug set is provided with built-in annulus connecting plate, the outer ring surface of annulus connecting plate is provided with seal groove, plug set is to use bolt to constitute installation with the ring flange of bushing pipe at annulus connecting plate, seal groove on plug set annulus connecting plate is to coordinate installation with the sealing ring on bushing pipe ring flange, once there is leakage in the sealing ring on ring flange, sealing effectiveness will be affected, also result in whole failure of apparatus；Additionally, this patent of invention uses bushing pipe described in technical scheme not have versatility with plug set, different size, difform bend pipe tools need to configure bushing pipe and the plug set of dimension, shape, and investment is very big, and production cost is the highest；And, device described in this patent of invention must pass through hydraulic pressure test, does not has hydraulic press to work.
Application No.201220310168.9nullUtility model disclose the pipe fitting pressure testing chock plug of a kind of good airproof performance，It includes inserting blocks up、Hold stifled，It is characterized in that inserting to block being provided with water inlet、Air vent and the bulb the rim of a bowl being connected with pressure testing machine oil cylinder，Hold to block and be provided with the inlet opening connected with pipe fitting，Insert stifled and hold stifled between by T-shaped cushion rubber mortise-tenon joint，And form die cavity，But，This utility model insert stifled and hold stifled between by T-shaped cushion rubber mortise-tenon joint，Be insert stifled and hold stifled between form die cavity，During use，Insert the bulb the rim of a bowl blocked to be connected with pressure testing machine oil cylinder，Under oil cylinder effect，Hold stifled by sealing gasket and pipe fitting port sealing，By water inlet, inside pipe fitting water filling is pressurizeed，Air in pipe fitting is discharged by air vent，Current quickly fill with die cavity under the effect of the pressure，When current run into slotting stifled inwall, one downward power of formation acts on and holds stifled inwall，Make to hold that to get lodged in the effect seal performance of downward force more preferable，And the increasing along with pressure test pressure，Hold and stifled press tighter and tighter thus realize fully sealing，But，Understand after comprehensive analysis，This utility model actually utilizes pressure testing chock plug to substitute the pressing plate on hydraulic press，Utilize chock plug to port sealing，Chock plug must compress port sealing rubber cushion by hydraulic press，Do not have hydraulic press can not carry out the water pressure test，So，This utility model must utilize hydraulic press just can complete test，Particularly，This utility model is the conjunction completing port sealing of the counteracting force utilizing chock plug cavity water under high pressure and hydraulic press oil cylinder pressure at right angle，The pressure making a concerted effort to produce have to be larger than the detection pressure that standard specifies，Therefore the risk of elbow class pipe fitting extrusion does not reduce，In other words，This utility model does not solve the problem of flat rubber cushion compressive deformation between elbow class pipe fitting compressive deformation problem and pressure testing chock plug and pipe fitting.
Summary of the invention
Technical problem to be solved in the utility model is, overcome weak point of the prior art, for solving elbow class pipe fitting problem of compressive deformation when carrying out the water pressure test, solve bell and spigot seals during the water pressure test reliability simultaneously and provide a kind of and insert stifled frock for the water pressure test also can be carried out in the case of not using dedicated water press for big diameter elbow self-locking water test unit.
This utility model is inserted the technical scheme of stifled frock employing and is included that inserting stifled bellmouth blocks head with inserting, it is provided with in described slotting stifled bellmouth outer end diameter and inserts stifled flange, insert stifled flange through hole inserting to be provided with on stifled flange, be provided with water pressure test air vent and water pressure test discharge outlet on head inserting to block.
Hanger it is additionally provided with on head described slotting blocking.
This utility model is inserted stifled frock and is used lost foam process casting global formation.
Compared with prior art, the beneficial effects of the utility model are:
(1) this utility model utilizes socket pipe member self seal feature, have only to that spheroidal graphite cast-iron of the prior art is inserted stifled improving and can form this utility model, thus simple in construction, interlocking seal is realized with the fastening of bend pipe tools socket flange bolt by inserting stifled flange, in the case of bend pipe tools nominal diameter is identical, there is versatility, unrelated with the change of the shaped angles of bend pipe tools, thus install the most very convenient with dismounting；
(2) this utility model changes bend pipe tools end face seal on hydraulic press into socket joint and seals, the most safer reliably, owing to being provided with water pressure test air vent and water pressure test discharge outlet on head slotting blocking, coordinate and hold the water pressure test water inlet that stifled frock end socket is provided with, when carrying out the water pressure test, high-pressure water pipe and water intaking valve are connected with water pump, pressure gauge design is on water pump, therefore this utility model can realize inserting stifled good sealing effectiveness, can realize again inserting stifled frock to interlock with bend pipe tools, the water pressure test can be carried out without dedicated water press, thoroughly stop bend pipe tools extrusion crack problem, the investment cost making large-scale dedicated water press can be saved simultaneously；
(3) this utility model is applicable to the nominal diameter water pressure test more than the nodular cast iron pipe fittings of more than DN700 specification, it is applicable not only to 11.25 °, 22.5 °, 45 °, 90 ° of bend pipe tools series products, when nominal diameter is more than DN1400 to DN2600, in the case of hydraulic press scarce capacity, the device cooperation that all bell socket pipe fittings all can use this utility model to provide is held stifled frock and is carried out the water pressure test.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model；
Fig. 2 is the top view of Fig. 1,
Fig. 3 is application schematic diagram of the present utility model.
In figure:
1. insert stifled flange,
2. insert stifled flange through hole,
3. insert stifled bellmouth,
4. water pressure test air vent,
5. water pressure test discharge outlet,
6. insert and block head,
7. hanger,
8. bend pipe tools,
9. hold stifled frock.
Detailed description of the invention
As shown in Fig. 1～Fig. 2, this utility model is inserted stifled frock and stifled is improved realization inserting spheroidal graphite cast-iron of the prior art, 6 are blocked including inserting stifled bellmouth 3 and inserting, in order to realize inserting stifled good sealing effectiveness, can realize again inserting stifled frock to interlock with bend pipe tools, the water pressure test can be carried out without dedicated water press, it is provided with in described slotting stifled bellmouth 3 outer end diameter and inserts stifled flange 1, stifled flange through hole 2 is inserted inserting to be provided with on stifled flange 1, it is provided with water pressure test air vent 4 and water pressure test discharge outlet 5 on 6 inserting to block, in order to adapt to the nominal diameter water pressure test more than the nodular cast iron pipe fittings of more than DN700 specification, particularly DN1400～the DN2600 specification heavy caliber socket joint bend pipe tools water pressure test, described insert to block be additionally provided with hanger 7 on 6, to facilitate lifting.
This utility model is inserted stifled frock and is used lost foam process casting global formation.
nullAs shown in Figure 3，During use，First in this utility model inserts the stifled bellmouth 3 bellmouth with bend pipe tools 8, O-ring seal is installed，Then in bend pipe tools 8 socket end, this utility model is installed，This utility model is inserted the socket flange bolt fastening of stifled flange 1 and bend pipe tools 8 and is realized interlocking seal，Install at bend pipe tools 8 female end and matching used hold stifled frock 9 lock sealing，Then it is connected with water pump with high-pressure water pipe and water intaking valve on stifled frock 9 water inlet holding，Pressure gauge is located on water pump，Open water intaking valve and the air bleeding valve of this utility model water pressure test air vent 4 holding stifled frock 9 water inlet again，Close the drain valve of this utility model water pressure test discharge outlet 5，Then water pump is started，Water filling in bend pipe tools 8，The water pressure test can be carried out，In process of the test，Under test pressure effect，Hold stifled frock 9 and realize self-locking seal by the bellmouth boss of hinged eccentric latch hook Yu bend pipe tools 8.
Claims (2)
1. one kind is blocked up frock for inserting of big diameter elbow self-locking water test unit, including inserting stifled bellmouth (3) and slotting blocking head (6), it is characterized in that, it is provided with in described slotting stifled bellmouth (3) outer end diameter and inserts stifled flange (1), insert stifled flange through hole (2) inserting to be provided with on stifled flange (1), be provided with water pressure test air vent (4) and water pressure test discharge outlet (5) on head (6) inserting to block.
A kind of slotting stifled frock for big diameter elbow self-locking water test unit, it is characterised in that be additionally provided with hanger (7) on head (6) described slotting blocking.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620260785.0U CN205479945U (en) | 2016-03-31 | 2016-03-31 | A insert stifled frock for heavy -calibre return bend auto -lock hydraulical pressure test apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620260785.0U CN205479945U (en) | 2016-03-31 | 2016-03-31 | A insert stifled frock for heavy -calibre return bend auto -lock hydraulical pressure test apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205479945U true CN205479945U (en) | 2016-08-17 |
Family
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620260785.0U Expired - Fee Related CN205479945U (en) | 2016-03-31 | 2016-03-31 | A insert stifled frock for heavy -calibre return bend auto -lock hydraulical pressure test apparatus |
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| Country | Link |
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| CN (1) | CN205479945U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107061919A (en) * | 2016-12-19 | 2017-08-18 | 苏州久美玻璃钢股份有限公司 | The hydrostatic compression testing device of pipeline with joint |
| CN117907114A (en) * | 2024-03-19 | 2024-04-19 | 沈阳亚特重型装备制造有限公司 | High-efficient full-automatic multistation intelligent hydrostatic test machine |
-
2016
- 2016-03-31 CN CN201620260785.0U patent/CN205479945U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107061919A (en) * | 2016-12-19 | 2017-08-18 | 苏州久美玻璃钢股份有限公司 | The hydrostatic compression testing device of pipeline with joint |
| CN117907114A (en) * | 2024-03-19 | 2024-04-19 | 沈阳亚特重型装备制造有限公司 | High-efficient full-automatic multistation intelligent hydrostatic test machine |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
Address after: 115007, No. 7, main street, Beihai New District, Yingkou, Liaoning, Gaizhou Patentee after: Liaoning metal forming Polytron Technologies Inc Address before: 115200, No. 7, main street, Beihai New District, Gaizhou, Liaoning, Yingkou Patentee before: LIAONING LOVE CASTING INDUSTRY CO., LTD. |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160817 Termination date: 20200331 |