CN106932147A - A kind of hoop type flange leakage monitor - Google Patents
A kind of hoop type flange leakage monitor Download PDFInfo
- Publication number
- CN106932147A CN106932147A CN201511019627.2A CN201511019627A CN106932147A CN 106932147 A CN106932147 A CN 106932147A CN 201511019627 A CN201511019627 A CN 201511019627A CN 106932147 A CN106932147 A CN 106932147A
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- Prior art keywords
- cavity
- hunting
- flange
- under
- leaks
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Classifications
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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
-
- 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
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Examining Or Testing Airtightness (AREA)
Abstract
A kind of hoop type flange leakage monitor, including the cavity that above leaks hunting, under leak hunting cavity.Flanged Connection System by left pipeline, left flange, pad, right flange, right pipeline, form in the presence of fastening bolt a connection system for closure, for medium in its internal flow, on leak hunting cavity, under the cavity that leaks hunting close at Flanged Connection System periphery, the leakage situation to flange is monitored.On to leak hunting and be provided with pin-and-hole on the left of cavity, and under cavity side corresponding with the cavity that above leaks hunting of leaking hunting be also equipped with and above leak hunting the complementary pin-and-hole of cavity, on leak hunting cavity, under the cavity that leaks hunting connected by pin, and on leak hunting cavity, under the cavity that leaks hunting can be rotated upwardly and downwardly around pin.Right side on cavity of being leaked hunting on described is provided with the cavity extension board that leaks hunting, it is described on leak hunting cavity extension board with the cavity that above leaks hunting for an entirety, and on to leak hunting and be provided with bolt hole on cavity extension board.
Description
Technical field
The invention belongs to leakage monitoring field, and in particular to a kind of hoop type flange leakage monitor.
Background technology
Flange because it is easy to install, dismounting the advantages of be widely used in oil, chemical industry, pharmacy, the energy and electric power
Etc. industry, but flange is during long service, can be because material corrosion, pad be aging, stress is loose
Relax and the reason such as high-temerature creep and there is leakage phenomenon.In recent years, chemical plant explosion accident, oil-gas pipeline are let out
Leakage appears in the newspapers repeatly, and the leakage accident of wherein larger proportion is relevant with flange leakage.Even a small number of nuclear power plant's devices
Failure is all because flange leakage causes.The connection of numerous flanges is patrolled in plant area, workshop using personnel are uninterrupted
There is the weakness at sensitivity bottom in method, and the leakage accident for happening suddenly may jeopardize the life peace of related personnel
Entirely.Poisonous, harmful, radioactivity and leaking for inflammable and explosive medium often bring serious consequence, but
Not a kind of device for monitoring flange leakage, remote real time monitoring is carried out come the state to flange.
The content of the invention
It is an object of the invention to propose a kind of hoop type flange leakage monitor, the leakage monitoring device is mainly used in
High temperature and high pressure condition (other operating modes all can use), the compact state of real-time monitoring flange, and provide feedback of status..
Technical scheme is as follows：A kind of hoop type flange leakage monitor, it is characterised in that：Bag
Include the cavity that leaks hunting, under leak hunting cavity, Flanged Connection System；Flanged Connection System includes left pipeline, Zuo Fa
Orchid, pad, right flange, right pipeline, form a connection system for closure in the presence of fastening bolt,
For medium in its internal flow, the cavity that above leaks hunting, under leak hunting cavity close at Flanged Connection System periphery；Institute
State and pin-and-hole be provided with the left of the cavity that leaks hunting, and under cavity side corresponding with the cavity that above leaks hunting of leaking hunting also set
Be equipped with the pin-and-hole complementary with the cavity that above leaks hunting, the cavity that above leaks hunting, under the cavity that leaks hunting connected by pin, and upper survey
Hollow chamber, under the cavity that leaks hunting can be rotated upwardly and downwardly around pin；The right side leaked hunting on described on cavity is provided with survey
Hollow chamber extension board, it is described on leak hunting cavity extension board with the cavity that above leaks hunting for an entirety, and on leak hunting sky
Bolt hole is provided with the extension board of chamber；Leaked hunting under described and be also equipped with down the cavity extension board that leaks hunting on the right side of cavity,
The cavity extension board that leaked hunting under described leaks hunting cavity for an entirety with, under leak hunting and be provided with cavity extension board
Bolt hole corresponding with the cavity extension board that leaked hunting on upper side port cavity；On leak hunting cavity, under leak hunting cavity around
When pin rotates closure, with bolt by bolt hole to the cavity that above leaks hunting, under the cavity that leaks hunting fasten.
Leaked hunting on described and be provided with 3 bolts hole on cavity extension board.
Leaked hunting on described cavity, under leak hunting and adopt on the annular contact surface that cavity and flange connected between two side ducts
Use the cavities seals pad that leaks hunting, under leak hunting the sealing of cavities seals pad, the cavity that above leaks hunting, under leak hunting the connecing of cavity
Gasket seal is also provided between contacting surface, it is ensured that what flange leakage monitoring device was contained leak hunting, and space has with the external world
Effect cut-off.
Also include measurement module, the measurement module includes measurement sensor, information display screen, state display lamp
And information launcher；The measurement sensor includes pressure sensor A, temperature sensor B and humidity sensor
Device C, to the cavity that above leaks hunting, under the cavity that leaks hunting close the temperature of medium in the airtight chamber to be formed, pressure, wet
Degree is monitored；For gas medium, when the pressure in the cavity that leaks hunting increases certain value, flange is can determine whether
Leak；For liquid medium, when the humidity in the cavity that leaks hunting increases to a certain extent, method is can determine whether
Orchid leaks；For high-temperature medium, when temperature is suddenly increased to certain boundary, and increase with pressure
The big or increased phenomenon of humidity, then can determine whether that flange is leaked.Described information display screen is used for measured
Temperature, pressure, humidity shown；The state display lamp is used to show the running status of flange,
Whether leak.
The data that described information emitter is used to measure sensor are delivered to by radio wave or Internet of Things
Master control room, and the running status and related data of multiple flanges are included on the display screen in control hall,
Realize the long-range monitoring to flange running status.
Remarkable result of the invention is：Measurement sensitivity is high, can be examined when flange occurs tiny leakage
Measure and, associated components can be in time improved, remedy or changed before major accident is led to, be prevented effectively from calamity
Difficult generation.
Brief description of the drawings
Fig. 1 is a kind of front view of hoop type flange leakage monitor of the present invention
Fig. 2 is a kind of left view of hoop type flange leakage monitor of the present invention
Fig. 3 is a kind of measurement module schematic diagram of hoop type flange leakage monitor of the present invention
In figure：1- left pipelines, 2- measurement modules, the left flanges of 3-, 4- fastening bolts, the hollow chamber in 5- upsides, 6-
Leaked hunting under the right flange of pad, 7-, 8- right pipelines, 9- under cavity extension board, 10- clips fastening bolt, 11-
To leak hunting leak hunting on cavity, 12- leak hunting on cavity extension board, 13- pins, 14- and survey under cavities seals pad, 15-
Hollow chamber sealing gasket, 16A- pressure sensors, 16B- temperature sensors, 16C- humidity sensors, 17- signals
Transmitting device, 18- measurement data display screen, 19- flange state display lamps
Specific embodiment
A kind of hoop type flange leakage monitor
As shown in Figure 1, Figure 2, Figure 3 shows：The hoop type flange leakage monitor, including the cavity that above leaks hunting
5th, leak hunting cavity 11 under.Flanged Connection System is by left pipeline 1, left flange 3, pad 6, right flange 7, the right side
Pipeline 8, one connection system of closure of formation in the presence of fastening bolt 4, for medium in its internal flow,
As shown in dotted portion in Fig. 1.On leak hunting cavity 5, under the cavity 11 that leaks hunting close at outside Flanged Connection System
Enclose, the leakage situation to flange is monitored.Leaked hunting on the described left side of cavity 5 is provided with pin-and-hole, and under
Leak hunting the pin-and-hole that cavity 11 and the corresponding side of cavity 5 of above leaking hunting be also equipped with the complementation of cavity 5 of above leaking hunting,
On leak hunting cavity 5, under the cavity 11 that leaks hunting connected by pin 13, and on leak hunting cavity 5, under leak hunting cavity 11
Can be rotated upwardly and downwardly around pin 13.Right side on cavity 5 of being leaked hunting on described is provided with the cavity extension board 12 that leaks hunting,
Leaked hunting on described cavity extension board 12 with the cavity 5 that above leaks hunting for an entirety, and on leak hunting cavity extension board 12
On be provided with bolt hole (such as 3).Leaked hunting under the described right side of cavity 11 is also equipped with down the cavity that leaks hunting
Extension board 9, it is described under the cavity extension board 9 that leaks hunting cavity 11 is leaked hunting with for an entirety, under leak hunting cavity
It is provided with extension board 9 and the corresponding bolt hole of cavity extension board 12 that leaked hunting on upper side port cavity 5.Upper survey
Hollow chamber 5, under leak hunting cavity 11 around pin 13 rotate close when, can with bolt 10 by bolt hole to upper
Leak hunting cavity 5, under the cavity 11 that leaks hunting fastened, by whole flange leakage monitoring device hoop left pipeline 1,
In right pipeline 8 so that whole Flanged Connection System is integrally surrounded by flange leakage monitoring device, to collect
The medium (gas or liquid) of flange leakage.
The hoop type flange monitoring device around pin 13 rotate closure after, whole flange leakage monitoring device
The centre position diameter and the flange leakage monitoring device that have a hole for circle, the circular hole monitored
Left pipeline 1, the external diameter of right pipeline 8 matches.The diameter of the circular hole sets according to specific measuring environment.
Leaked hunting on described cavity 5, under leak hunting the annular contact surface that cavity 11 and flange connected between two side ducts
It is upper using the cavities seals pad 14 that above leaks hunting, under the cavities seals pad 15 that leaks hunting seal, the cavity 5 that above leaks hunting, lower survey
Gasket seal is also provided between the contact surface in hollow chamber 11, it is ensured that what flange leakage monitoring device was contained leaks hunting
Space and extraneous effectively cut-off.
Measurement module 2 is additionally provided with the hoop type flange leakage monitor, the measurement module is mainly wrapped
Containing measurement sensor 16, information display screen 18, state display lamp 19 and information launcher 17.The survey
Quantity sensor is mainly pressure sensor A, temperature sensor B and humidity sensor C, to the cavity 5 that above leaks hunting,
Under the leak hunting temperature of medium in the airtight chamber that the closure of cavity 11 formed, pressure, humidity be monitored.For
Gas medium, when the pressure in the cavity that leaks hunting increases certain value, can determine whether that flange is leaked；For liquid
Body medium, when the humidity in the cavity that leaks hunting increases to a certain extent, can determine whether that flange is leaked；For
High-temperature medium, it is when temperature is suddenly increased to certain boundary and increased existing with pressure increase or humidity
As then can determine whether that flange is leaked.Described information display screen 18 then be used for measured temperature, pressure,
Humidity is shown.The data measured according to sensor judge whether flange leaks, the state
Display lamp 19 is then used to show the running status of flange, whether leaks.Information launcher 17 is used to pass
The data that sensor 16 is measured are delivered to master control room by radio wave or Internet of Things, and by the fortune of multiple flanges
Row state and related data are displayed on the display screen in control hall, realize the long-range prison to flange running status
Survey.
Claims (5)
1. a kind of hoop type flange leakage monitor, it is characterised in that：Including the cavity that above leaks hunting (5), under
Leak hunting cavity (11), Flanged Connection System；Flanged Connection System include left pipeline (1), left flange (3),
Pad (6), right flange (7), right pipeline (8), form a closure in the presence of fastening bolt (4)
Connection system, for medium in its internal flow, the cavity (5) that above leaks hunting, under leak hunting cavity (11) closure
In Flanged Connection System periphery；Leaks hunting the pin-and-hole that be provided with the left of cavity (5) on described, and under leak hunting cavity (11)
Side corresponding with the cavity that above leaks hunting (5) is also equipped with the pin-and-hole complementary with the cavity that above leaks hunting (5), and above leak hunting sky
Chamber (5), under the cavity (11) that leaks hunting connected by pin (13), and on leak hunting cavity (5), under leak hunting cavity (11)
Can be rotated upwardly and downwardly around pin (13)；The right side leaked hunting on described on cavity (5) is provided with the cavity extension board that leaks hunting
(12) the cavity extension board 12 that leaked hunting on, described is an entirety with the cavity that above leaks hunting (5), and on leak hunting cavity
Extension board is provided with bolt hole on (12)；Leaked hunting under described and be also equipped with down the cavity that leaks hunting on the right side of cavity (11)
Extension board 9, it is described under cavity extension board (9) cavity (11) that leaked hunting with that leaks hunting be an entirety, under leak hunting sky
Bolt corresponding with the cavity extension board (12) that leaked hunting on the hollow chamber in upside (5) is provided with chamber extension board (9)
Hole；On leak hunting cavity (5), under leak hunting cavity (11) around pin (13) rotate close when, passed through with bolt (10)
Bolt hole to the cavity that above leaks hunting (5), under the cavity (11) that leaks hunting fasten.
2. a kind of hoop type flange leakage monitor according to claim 1, it is characterised in that：Institute
State and be provided with 3 bolts hole on the cavity extension board (12) that leaks hunting.
3. a kind of hoop type flange leakage monitor according to claim 1, it is characterised in that：Institute
State the cavity that leaks hunting (5), under the cavity (11) that leaks hunting be connected with flange on the annular contact surface between two side ducts and adopt
Use the cavities seals pad (14) that leaks hunting, under leak hunting cavities seals pad (15) sealing, above leak hunting cavity (5), lower survey
Gasket seal is also provided between the contact surface of hollow chamber (11), it is ensured that the survey that flange leakage monitoring device is contained
Hollow is effectively separated with extraneous.
4. a kind of hoop type flange leakage monitor according to claim 1, it is characterised in that：Also wrap
Measurement module (2) is included, the measurement module shows comprising measurement sensor (16), information display screen (18), state
Show lamp (19) and information launcher (17)；The measurement sensor includes pressure sensor A, temperature sensor
B and humidity sensor C, to the cavity that above leaks hunting (5), under leak hunting cavity (11) closure formed airtight chamber in
The temperature of medium, pressure, humidity are monitored；For gas medium, when the pressure increase in the cavity that leaks hunting
During certain value, can determine whether that flange is leaked；For liquid medium, when the humidity in the cavity that leaks hunting is increased to
When to a certain degree, can determine whether that flange is leaked；For high-temperature medium, when temperature be suddenly increased to it is certain
Boundary, and with pressure increase or the increased phenomenon of humidity, then can determine whether that flange is leaked.The letter
Breath display screen 18 is used to show measured temperature, pressure, humidity；The state display lamp
Whether 19 running statuses for being used to show flange, leak.
5. a kind of hoop type flange leakage monitor according to claim 4, it is characterised in that：It is described
Information launcher (17) is for the data that sensor (16) is measured to be delivered to by radio wave or Internet of Things
Master control room, and the running status and related data of multiple flanges are included on the display screen in control hall,
Realize the long-range monitoring to flange running status.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201511019627.2A CN106932147A (en) | 2015-12-30 | 2015-12-30 | A kind of hoop type flange leakage monitor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201511019627.2A CN106932147A (en) | 2015-12-30 | 2015-12-30 | A kind of hoop type flange leakage monitor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106932147A true CN106932147A (en) | 2017-07-07 |
Family
ID=59441352
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201511019627.2A Pending CN106932147A (en) | 2015-12-30 | 2015-12-30 | A kind of hoop type flange leakage monitor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106932147A (en) |
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107355611A (en) * | 2017-08-11 | 2017-11-17 | 慧感(上海)物联网科技有限公司 | A kind of online collecting mechanism of hoop type flange sealing leak |
| CN107420746A (en) * | 2017-07-26 | 2017-12-01 | 柳哲 | More logical Shape closed formula sensor |
| CN107741304A (en) * | 2017-10-24 | 2018-02-27 | 柳哲 | A kind of annular leakage detection system |
| CN107764486A (en) * | 2017-10-24 | 2018-03-06 | 柳哲 | A kind of annular leakage detection sensor |
| CN109373200A (en) * | 2018-10-26 | 2019-02-22 | 南京鑫联交通设备有限公司 | Compressed air line leak detection system based on comprehensive parameters analysis |
| CN109765005A (en) * | 2019-03-05 | 2019-05-17 | 徐正强 | It leaks hunting and keeps the temperature case apparatus |
| CN109900433A (en) * | 2019-03-28 | 2019-06-18 | 攀钢集团攀枝花钢钒有限公司 | Detection warning device for Large Synchronous Machine air-water cooling device leak |
| CN110260033A (en) * | 2019-05-28 | 2019-09-20 | 江阴市富仁高科股份有限公司 | A kind of Pull breaking ualve safety inspection device with on-line checking on site |
| CN110361147A (en) * | 2019-07-15 | 2019-10-22 | 张超 | A kind of oil-gas pipeline leakage detection method and device |
| CN110553155A (en) * | 2019-08-01 | 2019-12-10 | 武汉华川环境有限公司 | drainage pipe leak hunting device for municipal administration |
| CN110630362A (en) * | 2019-09-21 | 2019-12-31 | 合肥神舟催化净化器股份有限公司 | Automobile exhaust purification catalyst |
| CN110864896A (en) * | 2019-12-23 | 2020-03-06 | 中国特种设备检测研究院 | Flange joint pre-tightening optimization comprehensive test device and method |
| CN112032573A (en) * | 2020-09-11 | 2020-12-04 | 山东水发黄水东调工程有限公司 | Water pipeline leakage monitoring system and method |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4410186A (en) * | 1982-04-12 | 1983-10-18 | Petroleum Designers, Inc. | Sealing system for pressurized flanged joints |
| CN203847862U (en) * | 2014-03-27 | 2014-09-24 | 王志坤 | Flange with seal leakage inspection hole |
| CN204314033U (en) * | 2014-11-28 | 2015-05-06 | 武汉工程大学 | Pipe flange compactedness test macro |
| CN204387696U (en) * | 2014-12-03 | 2015-06-10 | 河南汉威电子股份有限公司 | Pipeline gas leak detecting device |
| CN205538101U (en) * | 2015-12-30 | 2016-08-31 | 核动力运行研究所 | Clamp formula flange leak detection device |
-
2015
- 2015-12-30 CN CN201511019627.2A patent/CN106932147A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4410186A (en) * | 1982-04-12 | 1983-10-18 | Petroleum Designers, Inc. | Sealing system for pressurized flanged joints |
| CN203847862U (en) * | 2014-03-27 | 2014-09-24 | 王志坤 | Flange with seal leakage inspection hole |
| CN204314033U (en) * | 2014-11-28 | 2015-05-06 | 武汉工程大学 | Pipe flange compactedness test macro |
| CN204387696U (en) * | 2014-12-03 | 2015-06-10 | 河南汉威电子股份有限公司 | Pipeline gas leak detecting device |
| CN205538101U (en) * | 2015-12-30 | 2016-08-31 | 核动力运行研究所 | Clamp formula flange leak detection device |
Non-Patent Citations (1)
| Title |
|---|
| 顾伯勤 等: "《静密封设计技术》", 30 June 2004 * |
Cited By (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107420746A (en) * | 2017-07-26 | 2017-12-01 | 柳哲 | More logical Shape closed formula sensor |
| CN107355611B (en) * | 2017-08-11 | 2022-10-11 | 慧感(上海)物联网科技有限公司 | Clamp formula flange seal leaks on-line collection mechanism |
| CN107355611A (en) * | 2017-08-11 | 2017-11-17 | 慧感(上海)物联网科技有限公司 | A kind of online collecting mechanism of hoop type flange sealing leak |
| CN107741304A (en) * | 2017-10-24 | 2018-02-27 | 柳哲 | A kind of annular leakage detection system |
| CN107764486A (en) * | 2017-10-24 | 2018-03-06 | 柳哲 | A kind of annular leakage detection sensor |
| CN109373200A (en) * | 2018-10-26 | 2019-02-22 | 南京鑫联交通设备有限公司 | Compressed air line leak detection system based on comprehensive parameters analysis |
| CN109765005A (en) * | 2019-03-05 | 2019-05-17 | 徐正强 | It leaks hunting and keeps the temperature case apparatus |
| CN109900433A (en) * | 2019-03-28 | 2019-06-18 | 攀钢集团攀枝花钢钒有限公司 | Detection warning device for Large Synchronous Machine air-water cooling device leak |
| CN110260033A (en) * | 2019-05-28 | 2019-09-20 | 江阴市富仁高科股份有限公司 | A kind of Pull breaking ualve safety inspection device with on-line checking on site |
| CN110361147A (en) * | 2019-07-15 | 2019-10-22 | 张超 | A kind of oil-gas pipeline leakage detection method and device |
| CN110553155B (en) * | 2019-08-01 | 2021-06-29 | 武汉华川环境有限公司 | Drainage pipe leak hunting device for municipal administration |
| CN110553155A (en) * | 2019-08-01 | 2019-12-10 | 武汉华川环境有限公司 | drainage pipe leak hunting device for municipal administration |
| CN110630362A (en) * | 2019-09-21 | 2019-12-31 | 合肥神舟催化净化器股份有限公司 | Automobile exhaust purification catalyst |
| CN110630362B (en) * | 2019-09-21 | 2021-01-19 | 合肥神舟催化净化器股份有限公司 | Automobile exhaust purification catalyst |
| CN110864896A (en) * | 2019-12-23 | 2020-03-06 | 中国特种设备检测研究院 | Flange joint pre-tightening optimization comprehensive test device and method |
| CN112032573A (en) * | 2020-09-11 | 2020-12-04 | 山东水发黄水东调工程有限公司 | Water pipeline leakage monitoring system and method |
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Application publication date: 20170707 |