CN109187210A - A kind of water test unit detecting GRP pipe circumferential direction failure intensity - Google Patents
A kind of water test unit detecting GRP pipe circumferential direction failure intensity Download PDFInfo
- Publication number
- CN109187210A CN109187210A CN201811094227.1A CN201811094227A CN109187210A CN 109187210 A CN109187210 A CN 109187210A CN 201811094227 A CN201811094227 A CN 201811094227A CN 109187210 A CN109187210 A CN 109187210A
- Authority
- CN
- China
- Prior art keywords
- grp pipe
- circumferential direction
- blind flange
- failure intensity
- test unit
- 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.)
- Pending
Links
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 27
- 238000012360 testing method Methods 0.000 title claims abstract description 20
- 238000007789 sealing Methods 0.000 claims abstract description 8
- 238000005304 joining Methods 0.000 claims abstract description 4
- 238000001514 detection method Methods 0.000 claims description 9
- 239000011152 fibreglass Substances 0.000 abstract description 8
- 239000011521 glass Substances 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 2
- 238000009826 distribution Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 229910052755 nonmetal Inorganic materials 0.000 description 1
- 239000002243 precursor Substances 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/08—Investigating strength properties of solid materials by application of mechanical stress by applying steady tensile or compressive forces
- G01N3/10—Investigating strength properties of solid materials by application of mechanical stress by applying steady tensile or compressive forces generated by pneumatic or hydraulic pressure
- G01N3/12—Pressure testing
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/0014—Type of force applied
- G01N2203/0016—Tensile or compressive
- G01N2203/0019—Compressive
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/003—Generation of the force
- G01N2203/0042—Pneumatic or hydraulic means
- G01N2203/0048—Hydraulic means
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/02—Details not specific for a particular testing method
- G01N2203/026—Specifications of the specimen
- G01N2203/0262—Shape of the specimen
- G01N2203/0274—Tubular or ring-shaped specimens
Landscapes
- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
- Examining Or Testing Airtightness (AREA)
Abstract
The invention discloses a kind of water test units for detecting GRP pipe circumferential direction failure intensity, blind flange including GRP pipe and set on the GRP pipe both ends, the circumferential direction of blind flange, which extends, is equipped with connecting tube, GRP pipe is bonded and wraps up by the connecting tube, sticking part is equipped with multi-layer sealed circle side by side and is connected and sealed, and the end joining place of blind flange and GRP pipe is sealed equipped with rubber pad.The device has multi-layer sealed effect, rubber pad guarantees sealing effect by the pressure of fastening screw first, multilayer O-ring reaches sealing effect by interior hydraulically-formed glass reinforced plastic pipe expansive force compressing rubber circle, so that the device has axial constraint effect, when guaranteeing that GRP pipe bears interior hydraulic pressure, axially loaded is lower than the 1/2 of circumferential stress, so that circumferential intensity fails prior to axial strength, the failure intensity of acquisition is circumferential failure intensity, safe and efficient.
Description
Technical field
The invention belongs to pipeline field more particularly to a kind of water pressure test dresses for detecting GRP pipe circumferential direction failure intensity
It sets.
Background technique
GRP pipe is a kind of lightweight, high-strength, corrosion resistant nonmetal pipeline, and structural pipe wall is rationally advanced, can fill
The effect that material is waved in distribution optimizes all directions intensity distribution under the precursor for meeting use intensity, ensure that the reliable of product
Property and economy, application field are extensive.For the security reliability for further increasing the quality of glass reinforced plastic pipe product and using,
Each glass reinforced plastic pipe manufacturing firm all is making great efforts to strengthen inspection and research technique.
The circumferential failure intensity value of GRP pipe is different with axial failure intensity value, GRP pipe is by interior water
When pressure, circumferential the ratio between stress and axially loaded are 2:1；Interior hydraulic pressure failure intensity detection is carried out to GRP pipe, works as glass
The axial failure intensity of steel conduit is lower than the 1/2 of circumferential failure intensity, and under unconstrained state, what is failed first is GRP pipe
Axial strength, and what is actually obtained is axial failure intensity；Therefore, the examination of GRP pipe circumferential direction failure intensity hydraulic pressure is carried out
When testing, the axially loaded of GRP pipe need to be constrained.
Summary of the invention
Goal of the invention: the purpose of the present invention is one kind effectively to constrain the axially loaded of GRP pipe, into
And it can efficiently and safely test the water test unit of GRP pipe circumferential direction failure intensity.
Technical solution: the present invention detects the water test unit of GRP pipe circumferential direction failure intensity, including glass reinforced plastic pipe
Road and blind flange set on the GRP pipe both ends, the circumferential direction of the blind flange, which extends, is equipped with connecting tube, which will
GRP pipe fitting package, sticking part are equipped with multi-layer sealed circle side by side and are connected and sealed, the blind flange and glass reinforced plastic pipe
The end joining place in road is sealed equipped with rubber pad.Preferably, sealing ring is " O " type sealing ring.
Furtherly, water inlet and water outlet, glass reinforced plastic are offered on one end blind flange of GRP pipe of the invention
The other end blind flange of pipeline is equipped with exhaust outlet.Water pump is connected at inlet and outlet.
It further says, the inventive system comprises the pressure test tables for detecting hydraulic pressure in GRP pipe.
Furtherly, the device of the invention further includes the connecting rod that the blind flange at GRP pipe both ends is connected.
Connecting rod is fixedly connected on blind flange by nut.
The utility model has the advantages that compared with prior art, remarkable advantage of the invention are as follows: the device has multi-layer sealed effect, first
First rubber pad guarantees sealing effect by the pressure of fastening screw, and multilayer O-ring is by interior hydraulically-formed glass reinforced plastic pipe expansion
It forces contracting rubber ring and reaches sealing effect, so that the present apparatus has axial constraint effect, guarantee in GRP pipe receiving
When hydraulic pressure, axially loaded is lower than the 1/2 of circumferential stress, so that circumferential intensity fails prior to axial strength, the failure intensity of acquisition
It is safe and efficient for circumferential failure intensity.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of apparatus of the present invention.
Specific embodiment
Further details of the technical solution of the present invention with reference to the accompanying drawing.
The water test unit of detection GRP pipe circumferential direction failure intensity of the invention, including GRP pipe 1, the glass
The both ends of glass steel conduit 1 are equipped with blind flange 2, and the circumferential direction of the blind flange 2 at both ends extends towards the middle part of GRP pipe and is equipped with
Connecting tube 3, the both ends of GRP pipe 2 are bonded package by connecting tube 3, and multilayer O-ring seal is arranged in the fitting position of the two
4, it is preferred that two layers of O-ring seal 4, the blind flange 2 at 1 both ends of GRP pipe and the end of GRP pipe 1 is set side by side
Joining place is equipped with rubber pad 5 and is connected and sealed, and the blind flange 2 at 1 both ends of GRP pipe is connected by connecting rod 6, and is led to
It crosses nut to fix, as shown in Figure 1.
Wherein, offer water inlet and water outlet on one end blind flange 2 of GRP pipe 1, GRP pipe 1 it is another
Blind flange 2 is held to be equipped with exhaust outlet.Water pump is connected at inlet and outlet.The device further includes for detecting glass reinforced plastic
The pressure test table of hydraulic pressure in pipeline 1.
The principle detected using the above-mentioned device of the present invention are as follows: water is injected into GRP pipe by water inlet
Source, and the gas in GRP pipe is discharged by exhaust outlet, it constantly injects water source and is monitored by pressure test table.
Claims (7)
1. a kind of water test unit for detecting GRP pipe circumferential direction failure intensity, it is characterised in that: including GRP pipe
(1) and the blind flange (2) set on GRP pipe (1) both ends, the circumferential direction of the blind flange (2) extend equipped with connecting tube
(3), which is bonded GRP pipe (1) and wraps up, and sticking part is equipped with multi-layer sealed circle (4) company of being sealed side by side
It connects, the end joining place of the blind flange (2) and GRP pipe (1) is equipped with rubber pad (5) and is sealed.
2. the water test unit of detection GRP pipe circumferential direction failure intensity according to claim 1, it is characterised in that:
Water inlet and water outlet, the other end of GRP pipe (1) are offered on one end blind flange (2) of the GRP pipe (1)
Blind flange (2) is equipped with exhaust outlet.
3. the water test unit of detection detection GRP pipe circumferential direction failure intensity according to claim 1, feature
It is: is connected with water pump at the inlet and outlet.
4. the water test unit of detection GRP pipe circumferential direction failure intensity according to claim 1, it is characterised in that:
The device further includes the pressure test table for detecting GRP pipe (1) interior hydraulic pressure.
5. the water test unit of detection GRP pipe circumferential direction failure intensity according to claim 1, it is characterised in that:
The device further includes the connecting rod (6) that the blind flange (2) at GRP pipe (1) both ends is connected.
6. the water test unit of detection GRP pipe circumferential direction failure intensity according to claim 5, it is characterised in that:
The connecting rod (6) is fixedly connected on blind flange (2) by nut.
7. the water test unit of detection GRP pipe circumferential direction failure intensity according to claim 5, it is characterised in that:
The sealing ring (4) is " O " type sealing ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811094227.1A CN109187210A (en) | 2018-09-19 | 2018-09-19 | A kind of water test unit detecting GRP pipe circumferential direction failure intensity |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811094227.1A CN109187210A (en) | 2018-09-19 | 2018-09-19 | A kind of water test unit detecting GRP pipe circumferential direction failure intensity |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109187210A true CN109187210A (en) | 2019-01-11 |
Family
ID=64908477
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811094227.1A Pending CN109187210A (en) | 2018-09-19 | 2018-09-19 | A kind of water test unit detecting GRP pipe circumferential direction failure intensity |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109187210A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109975128A (en) * | 2019-04-02 | 2019-07-05 | 张喜军 | A kind of tubing Strength test method |
| CN110186749A (en) * | 2019-05-24 | 2019-08-30 | 贵州航天天马机电科技有限公司 | A kind of cylinder water test unit |
| CN110595876A (en) * | 2019-10-19 | 2019-12-20 | 沈阳仪表科学研究院有限公司 | Metal corrugated pipe expansion joint pressure resistance test device and test method for falling film pipe |
| CN110736614A (en) * | 2019-10-25 | 2020-01-31 | 常熟市海鑫船舶机械制造有限公司 | Abandon anchor ware testing arrangement |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU1586526A3 (en) * | 1986-04-04 | 1990-08-15 | Институт Хэмии Пшемыслоэй (Инопредприятие) | Arrangement for closing and sealing ends of pipes for internal pressure loading |
| JP2005201704A (en) * | 2004-01-14 | 2005-07-28 | Nippon Steel Corp | Internal pressure testing device of large-diameter pipe |
| CN201740705U (en) * | 2010-07-22 | 2011-02-09 | 上海科米钢管有限公司 | Pipe pressure test device |
| CN102042935A (en) * | 2010-10-29 | 2011-05-04 | 马利芳 | Method for detecting hydrostatic pressure of thin-wall steel pipe under end face seal condition |
| CN202166572U (en) * | 2011-07-19 | 2012-03-14 | 新疆鹏远新材料股份有限公司 | Water pressure testing machine for heavy-caliber fiber reinforced plastic pipe |
| CN202661337U (en) * | 2012-06-04 | 2013-01-09 | 苏州久美玻璃钢有限公司 | Internal pressure test device for glass reinforced plastic pipe |
| JP2013228339A (en) * | 2012-04-27 | 2013-11-07 | Nippon Steel & Sumitomo Metal | Water pressure testing apparatus and water pressure testing method for steel pipe |
| CN104931340A (en) * | 2015-06-11 | 2015-09-23 | 山东华信塑胶股份有限公司 | Sealing fixture used for pipe hydrostatic resistance test and using method of sealing fixture |
| CN205719793U (en) * | 2016-03-30 | 2016-11-23 | 青海柴达木杰青科技有限公司 | A kind of hydraulic pipe test sealing clamp |
| CN209231114U (en) * | 2018-09-19 | 2019-08-09 | 南京新核复合材料有限公司 | A kind of water test unit detecting GRP pipe circumferential direction failure intensity |
-
2018
- 2018-09-19 CN CN201811094227.1A patent/CN109187210A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU1586526A3 (en) * | 1986-04-04 | 1990-08-15 | Институт Хэмии Пшемыслоэй (Инопредприятие) | Arrangement for closing and sealing ends of pipes for internal pressure loading |
| JP2005201704A (en) * | 2004-01-14 | 2005-07-28 | Nippon Steel Corp | Internal pressure testing device of large-diameter pipe |
| CN201740705U (en) * | 2010-07-22 | 2011-02-09 | 上海科米钢管有限公司 | Pipe pressure test device |
| CN102042935A (en) * | 2010-10-29 | 2011-05-04 | 马利芳 | Method for detecting hydrostatic pressure of thin-wall steel pipe under end face seal condition |
| CN202166572U (en) * | 2011-07-19 | 2012-03-14 | 新疆鹏远新材料股份有限公司 | Water pressure testing machine for heavy-caliber fiber reinforced plastic pipe |
| JP2013228339A (en) * | 2012-04-27 | 2013-11-07 | Nippon Steel & Sumitomo Metal | Water pressure testing apparatus and water pressure testing method for steel pipe |
| CN202661337U (en) * | 2012-06-04 | 2013-01-09 | 苏州久美玻璃钢有限公司 | Internal pressure test device for glass reinforced plastic pipe |
| CN104931340A (en) * | 2015-06-11 | 2015-09-23 | 山东华信塑胶股份有限公司 | Sealing fixture used for pipe hydrostatic resistance test and using method of sealing fixture |
| CN205719793U (en) * | 2016-03-30 | 2016-11-23 | 青海柴达木杰青科技有限公司 | A kind of hydraulic pipe test sealing clamp |
| CN209231114U (en) * | 2018-09-19 | 2019-08-09 | 南京新核复合材料有限公司 | A kind of water test unit detecting GRP pipe circumferential direction failure intensity |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109975128A (en) * | 2019-04-02 | 2019-07-05 | 张喜军 | A kind of tubing Strength test method |
| CN110186749A (en) * | 2019-05-24 | 2019-08-30 | 贵州航天天马机电科技有限公司 | A kind of cylinder water test unit |
| CN110595876A (en) * | 2019-10-19 | 2019-12-20 | 沈阳仪表科学研究院有限公司 | Metal corrugated pipe expansion joint pressure resistance test device and test method for falling film pipe |
| CN110736614A (en) * | 2019-10-25 | 2020-01-31 | 常熟市海鑫船舶机械制造有限公司 | Abandon anchor ware testing arrangement |
| CN110736614B (en) * | 2019-10-25 | 2021-07-30 | 常熟市海鑫船舶机械制造有限公司 | Abandon anchor ware testing arrangement |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20190111 |