CN201892605U - External-clamping end face seal type water-pressure tester for small-bore internal screw pipe - Google Patents
External-clamping end face seal type water-pressure tester for small-bore internal screw pipe Download PDFInfo
- Publication number
- CN201892605U CN201892605U CN2010205659578U CN201020565957U CN201892605U CN 201892605 U CN201892605 U CN 201892605U CN 2010205659578 U CN2010205659578 U CN 2010205659578U CN 201020565957 U CN201020565957 U CN 201020565957U CN 201892605 U CN201892605 U CN 201892605U
- Authority
- CN
- China
- Prior art keywords
- small
- bore
- sealing
- test unit
- wild card
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
Images
Landscapes
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The utility model relates to an External-clamping end face seal type water-pressure tester for a small-bore internal screw pipe, which comprises a clamping part and a sealing part, wherein the clamping part consists of a pressing sleeve, a pressing cap and a screw; and the sealing part consists of a sealing rod, a sealing sleeve, a spherical washer, a pressing cap and a rubber sealing ring, wherein the sealing rod serves as a water inlet and is connected with a pressure meter pipe. The pressing cap consists of two sections of different heat treatment areas; the front end of the pressing cap is exposed to nitriding treatment, thereby having high hardness and abrasive resistance, and the tail end is exposed to low-hardness quenching, thereby having higher elasticity. The device is convenient in operation, has strong adaptability and can detect the weld joint quality of the internal screw pipe or a smooth pipe with the inner diameter less than 20 mm.
Description
Technical field
The utility model relates to a kind of water test unit, and the small-bore rifled tube water test unit of particularly a kind of wild card butt-end packing formula belongs to field of mechanical technique.
Background technology
In the station boiler industry, steel pipe hydrostatic testing is the important means of detector tube row or diaphragm welding quality, and it can detect the welding position very intuitively or whether mother metal has the penetrability defective.But card internal expansion type water test unit can only detect the tubing that endoporus is a unthreaded hole in existing, if endoporus is that female thread structure then can't seal; And when unthreaded hole size during less than φ 20mm, the used chip size that rises of internal expansion type is too small, and wall thickness is thin excessively, and after heat treatment broken situation easily takes place the quality instability, causes potential safety hazard.Along with improving constantly of boiler sizing, more small caliber inner screw thread thick-wall tube is applied in the product.In this case, want to finish the mode that the hydraulic testing can only be taked the soldering test pipe, promptly the large-sized light pipe of welding on rifled tube is finished the hydraulic testing with interior card internal expanding test instrument then on light pipe, excises developmental tube after the test again.Though this method has solved the hydraulic pressure problem of rifled tube, increase the operation of welding and excision developmental tube, need to prepare a considerable amount of test tube heads simultaneously, cost increases a lot.
Summary of the invention
Provide a kind of wild card butt-end packing formula small-bore rifled tube water test unit, this device is easy to operate, adaptability is strong, can detect rifled tube or the internal diameter weldquality less than the light pipe of φ 20mm.
The small-bore rifled tube water test unit of wild card butt-end packing formula, comprise: clamping part, hermetic unit, clamping part is made up of clamping sleeve, friction top and screw, hermetic unit is made up of sealing shroud, spheric washer, friction top and rubber seal, it is characterized in that in addition the seal bar that links to each other with manometer tube as water inlet.
The small-bore rifled tube water test unit of wild card butt-end packing formula is characterized in that: also comprise single direction thrust ball bearing.
Clamping part is made up of clamping sleeve, friction top and screw.Friction top is made up of two sections different heat treatment zones.Front end is handled through nitriding has high rigidity and wearing quality, and terminal the quenching through soft has higher elasticity.
This hydraulic pressure instrument hermetic unit is made up of seal bar, sealing shroud, spheric washer, friction top and rubber seal.Increasing single direction thrust ball bearing in addition makes the process of screwing convenient, laborsaving.
The small-bore rifled tube water test unit of wild card butt-end packing formula is characterized in that: in the middle of the seal bar into water through hole is arranged, an end can be connected as water inlet with the tensimeter hose adapter.
The small-bore rifled tube water test unit of wild card butt-end packing formula is characterized in that: the spheric washer end face is for spherical.Guarantee that rubber seal can be evenly stressed.
The caliber clamping part also comprises gripping sleeve and screw.Screw screw and make the stressed and clamping caliber of friction top.
Compared with prior art, this wild card butt-end packing formula hydraulic devices can be finished the hydraulic testing of rifled tube under situation about needn't take over, saved material and man-hour.Practical simple, safety.
Solved endoporus and be that female thread structure then can't seal and when unthreaded hole size during less than φ 20mm, the used chip size that rises of internal expansion type is too small, wall thickness is thin excessively, and after heat treatment broken situation easily takes place the quality instability, causes the hydraulic testing problem of potential safety hazard.Also avoided simultaneously the problem of excising developmental tube again after the test.Saved wide variety of materials and man-hour, simple, use, safety have been saved cost greatly.
Description of drawings
Fig. 1 hydraulic devices structural representation
Fig. 2 friction top structural representation
Fig. 3 sealing shroud structural representation
Fig. 4 rubber seal structural representation
Embodiment
As shown in Figure 1:
The outer dop 2-friction top 3-seal bar 4-spheric washer 5-sealing shroud of 1-
6-fixed head 7-screw 8-clamping sleeve 9-rubber seal 10-screw
11-O-ring seal 12-bearing
Earlier the seal bar threaded end is connected with the manometer tube joint, will installs outer chuck then and aim at caliber and tighten the outer chuck clamping of screw in compression.The screwing hermetic cover makes rubber seal tightly be adjacent to the caliber end face then.Injecting water under high pressure, is that force value reaches test standard in the rifled tube, maintains pressure by standard-required, reaches release after the dwell time.Hold outer chuck, return loose clamping sleeve, outer chuck is separated with pipe, pending test next time.
Claims (5)
1. the small-bore rifled tube water test unit of wild card butt-end packing formula, comprise: clamping part, hermetic unit, clamping part is made up of clamping sleeve (8), friction top (2) and screw (7), hermetic unit is made up of sealing shroud (5), spheric washer (4), friction top (2) and rubber seal (9), it is characterized in that: also have the seal bar that links to each other with manometer tube (3) as water inlet.
2. the small-bore rifled tube water test unit of wild card butt-end packing formula according to claim 1 is characterized in that: friction top is made up of two sections different heat treatment zones.
3. the small-bore rifled tube water test unit of wild card butt-end packing formula according to claim 1 is characterized in that: also comprise single direction thrust ball bearing.
4. the small-bore rifled tube water test unit of wild card butt-end packing formula according to claim 1 is characterized in that: in the middle of the seal bar into water through hole is arranged, an end can be connected as water inlet with the tensimeter hose adapter.
5. the small-bore rifled tube water test unit of wild card butt-end packing formula according to claim 1 is characterized in that: the spheric washer end face is for spherical.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205659578U CN201892605U (en) | 2010-10-19 | 2010-10-19 | External-clamping end face seal type water-pressure tester for small-bore internal screw pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205659578U CN201892605U (en) | 2010-10-19 | 2010-10-19 | External-clamping end face seal type water-pressure tester for small-bore internal screw pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201892605U true CN201892605U (en) | 2011-07-06 |
Family
ID=44222078
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010205659578U Expired - Lifetime CN201892605U (en) | 2010-10-19 | 2010-10-19 | External-clamping end face seal type water-pressure tester for small-bore internal screw pipe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201892605U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104764655A (en) * | 2015-03-25 | 2015-07-08 | 中国第一重型机械集团大连加氢反应器制造有限公司 | Adapter tube sealing device for hydrostatic test and use method thereof |
| CN105258859A (en) * | 2015-11-12 | 2016-01-20 | 江苏绿叶锅炉有限公司 | Inner threaded pipe pump water tool |
| CN112161748A (en) * | 2020-09-29 | 2021-01-01 | 无锡华光环保能源集团股份有限公司 | Three-jaw outer clamp end face sealing type hydraulic sealing device and test method |
-
2010
- 2010-10-19 CN CN2010205659578U patent/CN201892605U/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104764655A (en) * | 2015-03-25 | 2015-07-08 | 中国第一重型机械集团大连加氢反应器制造有限公司 | Adapter tube sealing device for hydrostatic test and use method thereof |
| CN104764655B (en) * | 2015-03-25 | 2017-08-25 | 中国第一重型机械集团大连加氢反应器制造有限公司 | A kind of water pressure test adapter sealing device and its application method |
| CN105258859A (en) * | 2015-11-12 | 2016-01-20 | 江苏绿叶锅炉有限公司 | Inner threaded pipe pump water tool |
| CN112161748A (en) * | 2020-09-29 | 2021-01-01 | 无锡华光环保能源集团股份有限公司 | Three-jaw outer clamp end face sealing type hydraulic sealing device and test method |
| CN112161748B (en) * | 2020-09-29 | 2022-12-13 | 无锡华光环保能源集团股份有限公司 | Three-jaw outer clamp end face sealing type hydraulic sealing device and test method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104390856B (en) | Clamp for metal thin-wall whole segment tube axial tension and compression fatigue test | |
| CN205447024U (en) | Capillary sealing connecting structure | |
| CN201892605U (en) | External-clamping end face seal type water-pressure tester for small-bore internal screw pipe | |
| CN204533919U (en) | The self-sealed mechanical compaction sleeve of a kind of bellows | |
| CN202548004U (en) | Hermetical expanding device for water pressure test on steel pipe | |
| CN203011654U (en) | Clamp used for pressure test of heat exchange tube | |
| CN210598944U (en) | Soluble metal fracturing ball testing device | |
| CN210243384U (en) | High-parameter boiler pipe fitting hydrostatic test fastener | |
| MX2018005290A (en) | Crimp quality monitoring method and system for use with a hydraulic crimping apparatus. | |
| CN204405274U (en) | A kind of device suppressing instrument for the connection of multiple spot stagnation pressure tube | |
| CN201606621U (en) | Leaking stoppage device of gas pipeline | |
| CN203036135U (en) | Pressure detection joint ball seal structure | |
| CN202041417U (en) | Quick connector used in small diameter pipe pressure test | |
| CN210005188U (en) | Leakage detection device for nonlinear thin-wall hard pipeline | |
| CN103900769A (en) | Valve pressure testing table | |
| CN109580128B (en) | Device and method for testing tightness of steel pipe coupling thread | |
| CN211262634U (en) | Fire-fighting pipeline air tightness detection device | |
| CN208253015U (en) | Rapid insertion device is used in condenser detection | |
| CN206846025U (en) | Universal sampling valve | |
| CN209094925U (en) | A kind of upper-mounting type ball valve installing and dismounting device | |
| CN102735550A (en) | Built-in type lossless high-pressure rapid pressure device for pipeline | |
| CN208268582U (en) | A kind of gas connection pipes connector that leakproofness is high | |
| CN107167307B (en) | Method and special equipment for testing air permeability of heat-shrinkable sealing cap | |
| CN205670069U (en) | Blast furnace copper cooling wall water pressure testing device | |
| CN211624580U (en) | Maintenance and emergency rescue device for lining repair pipe |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20110706 |
|
| CX01 | Expiry of patent term |