CN106287237B - For the quantitative testing device of external pressure expansion joint leakage - Google Patents
For the quantitative testing device of external pressure expansion joint leakage Download PDFInfo
- Publication number
- CN106287237B CN106287237B CN201610636202.4A CN201610636202A CN106287237B CN 106287237 B CN106287237 B CN 106287237B CN 201610636202 A CN201610636202 A CN 201610636202A CN 106287237 B CN106287237 B CN 106287237B
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- Prior art keywords
- expansion joint
- testing device
- external pressure
- leakage
- quantitative testing
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17D—PIPE-LINE SYSTEMS; PIPE-LINES
- F17D5/00—Protection or supervision of installations
- F17D5/02—Preventing, monitoring, or locating loss
- F17D5/06—Preventing, monitoring, or locating loss using electric or acoustic means
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L51/00—Expansion-compensation arrangements for pipe-lines
- F16L51/02—Expansion-compensation arrangements for pipe-lines making use of bellows or an expansible folded or corrugated tube
- F16L51/025—Expansion-compensation arrangements for pipe-lines making use of bellows or an expansible folded or corrugated tube with several corrugations
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Examining Or Testing Airtightness (AREA)
Abstract
For the quantitative testing device of external pressure expansion joint leakage, quantitative detection is carried out by the amount of leakage to medium, with reference to the design feature of External Pressure Type expansion joint, can realize and the amount of leakage of not subjected to pressure chamber is detected in real time, the maintenance or replacement for expansion joint provide real-time early warning.
Description
Technical field
This reality invention belongs to urban heating technical field, be specifically designed it is a kind of can be used in external pressure expansion joint leakage quantify
Detection device.
Background technology
Central heating is one of main foundation facility of urban modernization, and for energy saving, improvement environment improves the people
Living standard there is important positive effect, metal corrugated pipe expansion joint is the key that modern heating network carries out thermal compensation portion
One of part has the function of bit shift compensation, vibration and noise reducing and sealing, directly affects the security and stability of heat supply pipeline.If expansion
Section leaks, and pipeline will be out of service.Therefore it needs to design a kind of expansion joint with quantitative leak detection apparatus, rises and let out
Dew detection warning function.
The leak detection technology of expansion joint at present is that multilayer corrugated pipe leaking between layers situation is detected, such as Fig. 1 institutes
Show.This method detects the variation of bellows interlayer pressure by the pressure gauge connected with bellows interlayer, so as to judge ripple
Whether pipe generates leakage.Only when the amount of leakage of bellows interlayer reaches certain pressure, leak case can be just found, and not
It can judge the amount of leakage of expansion joint, therefore the sensitivity of this method is relatively low.In addition, this method is only used for multilayer corrugated pipe
Leak case is detected, and is only applicable to the expansion joint of interior laminated structure.
Invention content
In order to solve the above technical problems, the present invention provides a kind of quantitative testing device for the leakage of external pressure expansion joint, lead to
It crosses and quantitative detection is carried out to the amount of leakage of medium, with reference to the design feature of External Pressure Type expansion joint, can realize to not subjected to pressure chamber
Amount of leakage detects in real time, and the maintenance or replacement for expansion joint provide real-time early warning.
To realize the above-mentioned technical purpose, used technical solution：For external pressure expansion joint leakage quantitative testing device,
Expansion joint drain pipe exit is arranged on, expansion joint drain pipe is connected with not subjected to pressure area, and quantitative testing device is equipped with test chamber,
It is equipped with multiple hydrops slots, the corresponding minimum hydrops slot setting in expansion joint drain pipe outlet, every in test chamber successively from low to high
Liquid inductor is equipped in a hydrops slot, the outage connected with hydrops slot is equipped in each hydrops slot.
Not subjected to pressure area of the present invention is by bellows, the limiting ring flat-plate of bellows both ends connection and compression ring flat-plate, outlet
Pipe surrounds, and limiting ring flat-plate is fixedly connected with outlet, and gap is equipped between compression ring flat-plate and outlet, and expansion is equipped in gap location
Save drain pipe.
Top is equipped with seal assembly on the outside of compression ring flat-plate of the present invention.
Liquid inductor of the present invention is water sensor or leakage sensor.
Liquid inductor of the present invention is connect with radio transmitting device.
Radio transmitting device of the present invention is gsm wireless transmitter.
Outage of the present invention is arranged on hydrops trench bottom.
Liquid inductor of the present invention is arranged on hydrops trench bottom.
Present invention has the advantages that：
1st, the present invention, which can realize, is detected the amount of leakage of individual layer and multilayer external pressure bellows, and detection sensitivity is high,
And liquid inductor is utilized, using the hydrops slot of different height, according to letting out with the presence or absence of liquid determination expansion joint in hydrops slot
Dewiness state, maintenance or replacement for expansion joint provide real-time early warning.Since bellows is using outer laminated structure, the wave number of bellows can
Arbitrarily to increase without being limited by column buckling pressure, expansion joint can realize very big compensation rate, while reduce displacement counter-force
Effect.
2nd, it is alarmed using liquid inductor, liquid inductor detection information can also be transmitted by radio transmitting device
It goes out, carries out wireless alarming.
3rd, seal assembly prevents not subjected to pressure region from revealing, increases to further being sealed outside the gap of External Pressure Type expansion joint
Add the service life of expansion joint.
Description of the drawings
Fig. 1 is prior art construction schematic diagram；
Fig. 2 is the structure diagram of the present invention；
Fig. 3 is the outer pressure axial type expansion joint structure schematic diagram with quantitative testing device of the present invention；
Fig. 4 is the enlarged drawing in the I portions of Fig. 3；
In figure：1st, import tube assembly, 2, guide shell, 3, limiting ring flat-plate, 4, bellows, 5, intermediate tube, 6, outer tube, 7, be pressurized
Ring flat-plate, 8, sealing ring, 9, sealing ring flat-plate, 10, sealing gland, 11, outlet, 12, quantitative testing device, 13, expansion joint drain
Pipe, 14, test chamber, 15, hydrops slot, 16, liquid inductor, 17, outage, 18, seal assembly, 19, pressure gauge, 20, connection
Pipe, 21, multilayer corrugated pipe.
Specific embodiment
For the quantitative testing device that external pressure expansion joint is revealed by the hydrops slot of special designing（Assuming that V1=1L, V2=2L, V3
=3L, outage aperture also can be different）, gsm wireless transmitter composition.When expansion joint is without leakage, then quantitative testing device is not sent out pre-
Alert signal.When expansion joint is revealed, working media preferentially imports hydrops slot V1 regions, water logging sensing by expansion joint drain pipe
Device or leakage sensor sense ponding, and GSM1 wireless transmitters send out signal, and are discharged by outage, if amount of leakage is small
In the discharge rate of outage, then hydrops slot V1 regions can not be crowded with always, show micro- leakage of expansion joint, and expansion joint is without needing to change
It can be continuing with；If when working media imports hydrops slot V1 regions by expansion joint drain pipe, it is crowded with, then imports hydrops slot
V2 regions, two outage drains simultaneously, and GSM1, GSM2 wireless transmitter are simultaneously emitted by signal, if can not be crowded with always,
It prompts expansion joint amount of leakage appropriate, and improves degree of concern；If when working media imports hydrops slot V1 by expansion joint drain pipe
Region is crowded with, and is then imported hydrops slot V2 regions, is crowded with, subsequently into V3 regions, three outages while drains, and GSM1,
GSM2, GSM3 wireless transmitter are simultaneously emitted by signal, if can not be crowded with always, expansion joint amount of leakage are prompted to increase, needs to improve
Degree of concern, and prepare to replace；It is please replaced immediately if being crowded with.
Fig. 3 is specific embodiment of the quantitative testing device on outer pressure axial type expansion joint.This quantitative testing device also may be used
The expansion joint of leakage is detected, such as external pressure straight pipe type, bypass straight pipe type, external pressure straight tube pull rod type exist for the needs of other patterns
GB/T12777-2008《Metal corrugated pipe expansion joint general technical specifications》In the expansion joint of various types listed.
As shown in figure 3, one end of bellows 4 is connected with limiting ring flat-plate 3, the other end is connected with compression ring flat-plate 7；Bellows 4
It can be one group or multigroup, if multigroup, be linked together by intermediate tube 5.Import tube assembly 1 and outer tube 6
Be connected with compression ring flat-plate 7, then, import tube assembly, outer tube 6, compression ring flat-plate 7, bellows 4 outside between formed one envelope
The pressurized zone closed.11 one end of outlet is connected with limiting ring flat-plate 3, and the other end is movable end, and is radially being stayed with compression ring flat-plate 7
There is a small amount of gap, axially opposing can be slided between outlet 11 and compression ring flat-plate 7, to compensate pipeline tensile and compress position
It moves.
Limiting ring flat-plate 3, the inside of bellows 4, intermediate tube 5, compression ring flat-plate 7, formed between outlet 11 one it is non-by
Intermediate pressure section.Quantitative testing device 12 is set in 7 outer lower portion of compression ring flat-plate, quantitative testing device 12 detects what is leaked out from gap
Medium adds seal assembly 18 in gap location, and seal assembly 18 does not influence can axial phase between outlet 11 and compression ring flat-plate 7
It to sliding, while prevents medium from largely being revealed from gap, also all leakage media is all concentrated and are oriented to expansion joint drain pipe
13 effect, seal assembly 18 include sealing ring 8, sealing ring flat-plate 9, seal cover board 10, and sealing ring 8 is by sealing ring flat-plate 9 and close
Capping plate 10 seals gap location, and sealing ring flat-plate 9 sets expansion joint drain pipe, if leakage, liquid pass through expansion joint drain pipe stream
Enter quantitative testing device 12, the signal of different powers is sent out by detecting different amount of leakage, be the maintenance or replacement of expansion joint
Real-time early warning is provided.
Since the present invention is to carry out quantitative detection by the amount of leakage to medium, have non-pressure type leak detection function,
Detection sensitivity is high, and utilizes gsm wireless transmitter technology, with reference to the design feature of External Pressure Type expansion joint, can realize to non-
The amount of leakage of compression chamber detects in real time, and the maintenance or replacement for expansion joint provide real-time early warning.
Since bellows is using external-compression type structure, the wave number of bellows can arbitrarily increase without being limited by column buckling pressure
System, therefore expansion joint can realize very big nose balance amount, while the axial rigidity of expansion joint is also very low, can reach reduction
The effect of displacement counter-force.
Claims (8)
1. for the quantitative testing device of external pressure expansion joint leakage, it is characterised in that：The detection device is in expansion joint drain
Pipe（13）Exit, expansion joint drain pipe（13）It is connected with not subjected to pressure area, quantitative testing device is equipped with test chamber（14）, detecting
Chamber（14）Inside it is equipped with multiple hydrops slots successively from low to high（15）, expansion joint drain pipe（13）The corresponding minimum hydrops slot in outlet
（15）Setting, in each hydrops slot（15）Inside it is equipped with liquid inductor（16）, each hydrops slot（15）It is inside equipped with and hydrops
Slot（15）The outage of connection（17）.
2. as described in claim 1 for the quantitative testing device of external pressure expansion joint leakage, it is characterised in that：It is described it is non-by
Pressure area is by bellows（4）, bellows（4）The limiting ring flat-plate of both ends connection（3）With compression ring flat-plate（7）, outlet（11）It surrounds, limits
Position ring flat-plate（3）With outlet（11）It is fixedly connected, compression ring flat-plate（7）With outlet（11）Between be equipped with gap, set in gap location
There is expansion joint drain pipe（13）.
3. as claimed in claim 2 for the quantitative testing device of external pressure expansion joint leakage, it is characterised in that：The compression
Ring flat-plate（7）Outside top is equipped with seal assembly（18）.
4. as described in claim 1 for the quantitative testing device of external pressure expansion joint leakage, it is characterised in that：The liquid
Inductor（16）For water sensor or leakage sensor.
5. as described in claim 1 for the quantitative testing device of external pressure expansion joint leakage, it is characterised in that：The liquid
Inductor（16）It is connect with radio transmitting device.
6. as claimed in claim 5 for the quantitative testing device of external pressure expansion joint leakage, it is characterised in that：Described is wireless
Transmitting device is gsm wireless transmitter.
7. as described in claim 1 for the quantitative testing device of external pressure expansion joint leakage, it is characterised in that：The drain
Hole（17）It is arranged on hydrops slot（15）Bottom.
8. as described in claim 1 for the quantitative testing device of external pressure expansion joint leakage, it is characterised in that：The liquid
Inductor（16）It is arranged on hydrops slot（15）Bottom.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610636202.4A CN106287237B (en) | 2016-08-05 | 2016-08-05 | For the quantitative testing device of external pressure expansion joint leakage |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610636202.4A CN106287237B (en) | 2016-08-05 | 2016-08-05 | For the quantitative testing device of external pressure expansion joint leakage |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106287237A CN106287237A (en) | 2017-01-04 |
| CN106287237B true CN106287237B (en) | 2018-07-06 |
Family
ID=57665573
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610636202.4A Active CN106287237B (en) | 2016-08-05 | 2016-08-05 | For the quantitative testing device of external pressure expansion joint leakage |
Country Status (1)
| Country | Link |
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| CN (1) | CN106287237B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2338585Y (en) * | 1998-08-18 | 1999-09-15 | 南京晨光东螺波纹管有限公司 | Corrugated compensation arrangement with alarming device |
| CN201779369U (en) * | 2010-07-23 | 2011-03-30 | 洛阳双瑞特种装备有限公司 | Double-layer corrugated pipe with leakage monitoring function |
| CN202599626U (en) * | 2011-12-28 | 2012-12-12 | 洛阳双瑞特种装备有限公司 | Bellows interlayer monitoring and alarm device |
| CN204512965U (en) * | 2015-04-01 | 2015-07-29 | 西安科技大学 | A kind of underground heating network expansion joint leakage monitoring system |
| CN205001869U (en) * | 2015-10-12 | 2016-01-27 | 西安科技大学 | Underground heat supply pipeline expansion joint equipment |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20120228865A1 (en) * | 2011-03-08 | 2012-09-13 | Kevin Sopoliga | Independently expandable double containment joint |
-
2016
- 2016-08-05 CN CN201610636202.4A patent/CN106287237B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2338585Y (en) * | 1998-08-18 | 1999-09-15 | 南京晨光东螺波纹管有限公司 | Corrugated compensation arrangement with alarming device |
| CN201779369U (en) * | 2010-07-23 | 2011-03-30 | 洛阳双瑞特种装备有限公司 | Double-layer corrugated pipe with leakage monitoring function |
| CN202599626U (en) * | 2011-12-28 | 2012-12-12 | 洛阳双瑞特种装备有限公司 | Bellows interlayer monitoring and alarm device |
| CN204512965U (en) * | 2015-04-01 | 2015-07-29 | 西安科技大学 | A kind of underground heating network expansion joint leakage monitoring system |
| CN205001869U (en) * | 2015-10-12 | 2016-01-27 | 西安科技大学 | Underground heat supply pipeline expansion joint equipment |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106287237A (en) | 2017-01-04 |
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| GR01 | Patent grant | ||
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| CP01 | Change in the name or title of a patent holder |
Address after: No.88, Binhe North Road, hi tech Zone, Luoyang City, Henan Province Patentee after: CSSC Shuangrui (Luoyang) special equipment Co.,Ltd. Address before: No.88, Binhe North Road, hi tech Zone, Luoyang City, Henan Province Patentee before: LUOYANG SUNRUI SPECIAL EQUIPMENT Co.,Ltd. |