CN105571675A - Safety monitoring system and monitoring method for gas pipeline - Google Patents
Safety monitoring system and monitoring method for gas pipeline Download PDFInfo
- Publication number
- CN105571675A CN105571675A CN201510909316.7A CN201510909316A CN105571675A CN 105571675 A CN105571675 A CN 105571675A CN 201510909316 A CN201510909316 A CN 201510909316A CN 105571675 A CN105571675 A CN 105571675A
- Authority
- CN
- China
- Prior art keywords
- signal
- gas
- actual
- preset value
- pipe line
- 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.)
- Granted
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
- G01F23/00—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
- G01D21/00—Measuring or testing not otherwise provided for
- G01D21/02—Measuring two or more variables by means not covered by a single other subclass
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Investigating Or Analyzing Materials By The Use Of Ultrasonic Waves (AREA)
- Examining Or Testing Airtightness (AREA)
Abstract
The invention mainly relates to a safety monitoring system and monitoring method for a gas pipeline. The safety monitoring system for the gas pipeline comprises a gas sensor mounted in the gas pipeline and used for detecting the concentration of gas in the gas pipeline and generating a gas concentration signal, a gas pressure sensor mounted at a leakage point of the gas pipeline and used for detecting pressure change of gas at the leakage point and generating a gas pressure signal, a sound generator arranged on the pipe wall on one side of the gas pipeline and used for transmitting sound waves to the pipe wall, a sound frequency detection device arranged on the pipe wall on the other side of the pipeline and a communication device used for receiving a practical gas concentration signal, a practical gas pressure signal and a practical sound frequency signal and transmitting the three signals to a monitor center. According to the safety monitoring system and the monitoring method for the gas pipeline, a conventional pipeline structure is not required to be changed, a medium leakage risk is avoided, and pipeline pigging and other operation are not influenced.
Description
Technical field
The invention belongs to level gauging field, relate generally to a kind of system and method that liquid level in closed container is measured, particularly relate to a kind of gas pipe line safety monitoring system and method for supervising thereof.
Background technology
Natural gas line can produce hydrops under certain condition, and hydrops occupies a part of pipeline section, reduces effective conveying sectional area of gas, causes managing defeated efficiency and reduces, may form hydrate in addition, cause ice to block up accident under uniform temperature condition.For the gas gathering line of high sulfur-bearing and carbon dioxide, the existence of hydrops also can accelerate pipeline corrosion, causes conduit wiring piercing, causes and leaks, even cause intoxication accident.Regular pigging is the method effectively and usually adopted reducing hydrops in pipe, and determines scraper-running frequency and formulate pigging scheme, need to know hydrops in pipe number, namely need to measure pipe inner product liquid measure.
Chinese invention patent CN1155809C discloses a kind of employing gamma ray measuring channel hydrops amount technology.Ray method weak point is: ray is decayed acutely in steel tube wall, needs to pipeline perforate to arrange radiographic source storehouse, and can not carry out non-intervention type detection to the gathering line hydrops amount built up, in addition, these class methods also exist radiation risk.
Ultrasound wave is widely used in the detection of the closed vessel liquid levels such as storage tank, conventional ultrasound liquid level level measuring method principle of work adopts time difference method, sends ultrasound wave, propagate in media as well by ultrasound wave transmitting probe, reflected after running into liquid-gas interface, received reflection echo by receiving transducer.Utilize ultrasound wave travel-time in media as well and ultrasonic velocity to calculate its propagation distance, thus obtain liquid level.When in container, temperature, pressure change, or when in container, liquid phase media components changes, the velocity of sound also will change, and be difficult to ensure liquid level measurement precision.
Chinese invention patent 100434906C discloses the formal ultrasonic wave liquid level measuring apparatus of a kind of self-correcting, and needing to install a fixation reflex ring in tested container inside for carrying out speed of sound correction, is not non-intervention type measuring method truly.
Natural gas line pressure is high, pumped (conveying) medium is inflammable and explosive, and high sulfur-containing natural gas also has severe toxicity, for ensureing safety, stops dielectric leakage hidden danger, requires that the hydrops measuring method adopted can not change existing line construction, can only carry out non-intervention type measurement at pipe outer wall.
In sum, existing pipeline hydrops measuring technique, is generally invasive measurement method, needs to transform existing pipeline, cannot meet the needs of the natural gas line hydrops detection run.
Summary of the invention
The defect existed for above-mentioned prior art and deficiency, the object of the invention is to propose a kind of non-intervention type pipeline hydrops monitoring system and method, without the need to speed of sound correction, do not affect by liquid phase component in pipeline and temperature, pressure and other parameters, and do not change existing pipeline structure, the Quick Measurement to hydrops height in pipe can be realized.
In order to realize above-mentioned technical purpose, the present invention adopts following concrete technical scheme:
A kind of gas pipe line safety monitoring system, comprising:
Gas sensor, is installed in gas pipe line, for detecting gas concentration in gas pipe line, generates gas concentration signal;
Gas pressure sensor, is installed on the leakage point of gas pipe line, for detecting the pressure variety of leakage point place gas, generates gaseous tension signal;
Also comprise:
Acoustical generator, is arranged on the tube wall of gas pipe line side, for launching sound wave to tube wall; The tube wall of pipeline opposite side is provided with audio detection device, and described audio detection device is for the sound that receives described acoustical generator and send and be translated into sound signal;
Communicator, for receiving actual gas concentration signal, actual gas pressure signal and actual audio signal, and is transmitted to Surveillance center by actual gas concentration signal, actual gas pressure signal and actual audio signal;
Surveillance center, has gas concentration signal preset value, gaseous tension signal preset value and sound signal preset value in described Surveillance center;
Actual gas concentration signal, actual gas pressure signal and actual audio signal that Surveillance center's obtaining communication device is sent;
Actual gas concentration signal and gas concentration preset value are contrasted;
Actual gas pressure signal and gaseous tension signal preset value are compared;
Actual audio signal and audio frequency preset value are compared;
When judge described actual gas concentration signal and gas concentration preset value is inconsistent or actual audio signal and audio frequency preset value is inconsistent or actual pressure signal and gaseous tension signal preset value inconsistent, then send warning.
Described acoustical generator is arranged on pipeline outer wall corresponding to the low-lying place that produces hydrops in gas pipe line.
Described acoustical generator is fixed frequency acoustical generator.
Also comprise blimp, described blimp is annular, is socketed in the outside of described gas pipe line, and covers described acoustical generator and audio detection device.
Fluid sealant is provided with between described blimp and gas pipe line tube wall.
Described fluid sealant is epoxy resin sealant or electric insulating sealant.
A kind of gas pipe line safety monitoring method, the gas pipe line safety monitoring system described in employing detects; The method comprises the steps:
Step one, store in Surveillance center and the audio-frequency information table that gas concentration monitor message table, gas pressure information table and described audio detection device detect is set in advance;
Gas concentration preset value is recorded in described gas concentration monitor message table;
Gaseous tension preset value is recorded in described gas pressure information table;
The audio frequency preset value that audio detection device detects when gas pipe line inner product liquid measure allows maximal value is recorded in described audio-frequency information table;
Actual gas concentration signal, actual gas pressure signal and actual audio signal that step 2, Surveillance center's obtaining communication device are sent, contrast the gas concentration preset value recorded in actual gas concentration signal and gas concentration monitor message table;
Actual gas pressure signal and gaseous tension preset value are compared;
The audio frequency preset value recorded in actual audio signal and audio-frequency information table is compared;
When judge described actual gas concentration signal and gas concentration preset value is inconsistent or actual pressure signal and gaseous tension signal preset value inconsistent, or actual audio signal and audio frequency preset value inconsistent, then send warning.
Also comprise hygrometer, described hygrometer is periodically monitored pipeline humidity and is generated moisture signal and passes to described communicator.The present invention, compared with domestic and international prior art, has following features:
(1) be non-intervention type hydrops measuring method, without the need to perforate on tube wall, can not damage line strength, No leakage risk, be especially applicable to conveying corrosivity, the monitoring of toxic medium pipeline inner product liquid;
(2) not by the composition of liquid phase medium in pipeline, and temperature, pressure and other parameters impact, without the need to carrying out speed of sound correction;
(3) institute's energy requirement is small, can not cause safety problem, and explosion-proof performance is good;
(4) movement-less part, without the pressure loss, maintenance cost is low;
(5) normal operations such as pipeline pigging are not affected.
Accompanying drawing explanation
Fig. 1 is the structural representation of gas pipe line safety monitoring system of the present invention;
Wherein, 1 is gas piping; 2 is acoustical generator; 3 is audio detection device; 4 is communicator; 5 is Surveillance center; 6 is blimp.
Embodiment
In conjunction with the accompanying drawings, the present invention is further detailed explanation.These accompanying drawings are the schematic diagram of simplification, only basic structure of the present invention are described in a schematic way, and therefore it only shows the formation relevant with the present invention.
In describing the invention, it will be appreciated that, term " " center ", " longitudinal direction ", " transverse direction ", " on ", D score, " front ", " afterwards ", " left side ", " right side ", " vertically ", " level ", " top ", " end ", " interior ", orientation or the position relationship of the instruction such as " outward " are based on orientation shown in the drawings or position relationship, only the present invention for convenience of description and simplified characterization, instead of indicate or imply that the device of indication or element must have specific orientation, with specific azimuth configuration and operation, therefore limitation of the present invention can not be interpreted as.In addition, term " first ", " second " only for describing object, and can not be interpreted as instruction or hint relative importance or imply the quantity indicating indicated technical characteristic.Thus, be limited with " first ", the feature of " second " can express or impliedly comprise one or more these features.In describing the invention, except as otherwise noted, the implication of " multiple " is two or more.
In describing the invention, it should be noted that, unless otherwise clearly defined and limited, term " installation ", " being connected ", " connection " should be interpreted broadly, and such as, can be fixedly connected with, also can be removably connect, or connect integratedly; Can be mechanical connection, also can be electrical connection; Can be directly be connected, also indirectly can be connected by intermediary, can be the connection of two element internals.For the ordinary skill in the art, concrete condition above-mentioned term concrete meaning in the present invention can be understood.
Embodiment 1
A kind of gas pipe line safety monitoring system, comprising:
Gas concentration sensor, is installed in gas pipe line, for detecting gas concentration in gas pipe line, generates gas concentration signal;
Gas pressure sensor, is installed on the leakage point of gas pipe line, for detecting the pressure variety of leakage point place gas, generates gaseous tension signal;
Also comprise:
Acoustical generator, is arranged on the tube wall of gas pipe line side, for launching sound wave to tube wall; The tube wall of pipeline opposite side is provided with audio detection device, and described audio detection device is for the sound that receives described acoustical generator and send and be translated into sound signal;
Above-mentioned three signals for receiving actual gas concentration signal, actual gas pressure signal and actual audio signal, and are transmitted to Surveillance center by communicator;
Surveillance center, has gas concentration signal preset value, gaseous tension signal preset value and sound signal preset value in described Surveillance center;
Actual gas concentration signal, actual gas pressure signal and actual audio signal that Surveillance center's obtaining communication device is sent;
Actual gas concentration signal and gas concentration preset value are contrasted;
Actual gas pressure signal and gaseous tension signal preset value are compared;
Actual audio signal and audio frequency preset value are compared;
When judge described actual gas concentration signal and gas concentration preset value is inconsistent or actual audio signal and audio frequency preset value is inconsistent or actual pressure signal and gaseous tension signal preset value inconsistent, then send warning.
As the further preferred version of the present embodiment, described acoustical generator is arranged on pipeline outer wall corresponding to the low-lying place that produces hydrops in gas pipe line.
Described acoustical generator is fixed frequency acoustical generator.
A method for supervising for described gas pipe line safety monitoring system, the gas pipe line safety monitoring system described in employing is monitored; The method comprises the steps:
A kind of gas pipe line safety monitoring method, the gas pipe line safety monitoring system described in employing detects; The method comprises the steps:
Step one, store in Surveillance center and the audio-frequency information table that gas concentration monitor message table, gas pressure information table and described audio detection device detect is set in advance;
Gas concentration preset value is recorded in described gas concentration monitor message table;
Gaseous tension preset value is recorded in described gas pressure information table;
The audio frequency preset value that audio detection device detects when gas pipe line inner product liquid measure allows maximal value is recorded in described audio-frequency information table;
Actual gas concentration signal, actual gas pressure signal and actual audio signal that step 2, Surveillance center's obtaining communication device are sent, contrast the gas concentration preset value recorded in actual gas concentration signal and gas concentration monitor message table;
Actual gas pressure signal and gaseous tension preset value are compared;
The audio frequency preset value recorded in actual audio signal and audio-frequency information table is compared;
When judge described actual gas concentration signal and gas concentration preset value is inconsistent or actual pressure signal and gaseous tension signal preset value inconsistent, or actual audio signal and audio frequency preset value inconsistent, then send warning.
Embodiment 2
The present embodiment adds appropriateness meter relative to embodiment, described hygrometer is periodically monitored pipeline humidity and is generated moisture signal and passes to described communicator, communicator by signal transmission to Surveillance center, the humidity maximal value of permission is preset with in Surveillance center, when the appropriate signal that hygrometer detects exceedes this humidity maximal value, Surveillance center gives the alarm.
Embodiment 3
The present embodiment, relative to aforementioned two embodiments, also comprises blimp, and described blimp is annular, is socketed in the outside of described gas pipe line, and covers described acoustical generator and audio detection device.
Outer setting blimp of gas pipe line of acoustical generator and audio detection device is being housed, and external noises completely cuts off by this blimp, and the sound signal that audio detection device is detected is more accurate, does not disturb by external noises.
Claims (8)
1. a gas pipe line safety monitoring system, comprising:
Gas sensor, is installed in gas pipe line, for detecting gas concentration in gas pipe line, generates gas concentration signal;
Gas pressure sensor, is installed on the leakage point of gas pipe line, for detecting the pressure variety of leakage point place gas, generates gaseous tension signal;
It is characterized in that, also comprise:
Acoustical generator, is arranged on the tube wall of gas pipe line side, for launching sound wave to tube wall; The tube wall of pipeline opposite side is provided with audio detection device, and described audio detection device is for the sound that receives described acoustical generator and send and be translated into sound signal;
Communicator, for receiving actual gas concentration signal, actual gas pressure signal and actual audio signal, and is transmitted to Surveillance center by actual gas concentration signal, actual gas pressure signal and actual audio signal;
Surveillance center, has gas concentration signal preset value, gaseous tension signal preset value and sound signal preset value in described Surveillance center;
Actual gas concentration signal, actual gas pressure signal and actual audio signal that Surveillance center's obtaining communication device is sent;
Actual gas concentration signal and gas concentration preset value are contrasted;
Actual gas pressure signal and gaseous tension signal preset value are compared;
Actual audio signal and audio frequency preset value are compared;
When judge described actual gas concentration signal and gas concentration preset value is inconsistent or actual audio signal and audio frequency preset value is inconsistent or actual pressure signal and gaseous tension signal preset value inconsistent, then send warning.
2. gas pipe line safety monitoring system according to claim 1, is characterized in that, described acoustical generator is arranged on pipeline outer wall corresponding to the low-lying place that produces hydrops in gas pipe line.
3. gas pipe line safety monitoring system according to claim 1, is characterized in that, described acoustical generator is fixed frequency acoustical generator.
4. gas pipe line safety monitoring system according to claim 1, is characterized in that, also comprise blimp, and described blimp is annular, is socketed in the outside of described gas pipe line, and covers described acoustical generator and audio detection device.
5. gas pipe line safety monitoring system according to claim 4, is characterized in that, is provided with fluid sealant between described blimp and gas pipe line tube wall.
6. gas pipe line safety monitoring system according to claim 5, is characterized in that, described fluid sealant is epoxy resin sealant or electric insulating sealant.
7. a gas pipe line safety monitoring method, is characterized in that, adopts gas pipe line safety monitoring system as claimed in claim 1 to detect; The method comprises the steps:
Step one, store in Surveillance center and the audio-frequency information table that gas concentration monitor message table, gas pressure information table and described audio detection device detect is set in advance;
Gas concentration preset value is recorded in described gas concentration monitor message table;
Gaseous tension preset value is recorded in described gas pressure information table;
The audio frequency preset value that audio detection device detects when gas pipe line inner product liquid measure allows maximal value is recorded in described audio-frequency information table;
Actual gas concentration signal, actual gas pressure signal and actual audio signal that step 2, Surveillance center's obtaining communication device are sent, contrast the gas concentration preset value recorded in actual gas concentration signal and gas concentration monitor message table;
Actual gas pressure signal and gaseous tension preset value are compared;
The audio frequency preset value recorded in actual audio signal and audio-frequency information table is compared;
When judge described actual gas concentration signal and gas concentration preset value is inconsistent or actual pressure signal and gaseous tension signal preset value inconsistent, or actual audio signal and audio frequency preset value inconsistent, then send warning.
8. gas pipe line safety monitoring method according to claim 7, is characterized in that, also comprise hygrometer, and described hygrometer is periodically monitored pipeline humidity and generated moisture signal and passes to described communicator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510909316.7A CN105571675B (en) | 2015-12-10 | 2015-12-10 | A kind of gas pipeline safety monitoring system and its monitoring method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510909316.7A CN105571675B (en) | 2015-12-10 | 2015-12-10 | A kind of gas pipeline safety monitoring system and its monitoring method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105571675A true CN105571675A (en) | 2016-05-11 |
| CN105571675B CN105571675B (en) | 2018-12-14 |
Family
ID=55882073
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510909316.7A Active CN105571675B (en) | 2015-12-10 | 2015-12-10 | A kind of gas pipeline safety monitoring system and its monitoring method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105571675B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105865531A (en) * | 2016-06-06 | 2016-08-17 | 无锡市翱宇特新科技发展有限公司 | Pipeline flow monitoring system |
| CN109596180A (en) * | 2019-01-22 | 2019-04-09 | 中国石油大学(华东) | A kind of experimental provision and method of underwater gas transportation pipeline Release and dispersion and scattered burning of overflowing |
| CN113090958A (en) * | 2021-03-12 | 2021-07-09 | 西南石油大学 | Gas pipeline safety prevention and control monitoring method |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1092862A (en) * | 1993-03-18 | 1994-09-28 | 清华大学 | Self-correcting supersonic level gauge |
| WO2001067051A1 (en) * | 2000-03-09 | 2001-09-13 | Nest International N.V. | Simultaneous determination of multiphase flowrates and concentrations |
| CN1314992A (en) * | 1998-07-03 | 2001-09-26 | 奈勒斯菲尔德控制有限公司 | Method and arrangement for measuring fluid |
| CN1334457A (en) * | 2001-09-11 | 2002-02-06 | 中国石油天然气股份有限公司 | Method for detecting and checking liquid holding ratio of multi-phase tubular stream |
| US20030006178A1 (en) * | 2000-08-29 | 2003-01-09 | Ron James | Fish pond filter system |
| CN101839746A (en) * | 2009-10-25 | 2010-09-22 | 梁法春 | Method and device for measuring accumulated liquid of natural gas pipeline |
| CN101960303A (en) * | 2008-11-11 | 2011-01-26 | 韩国电力系统开发设计有限公司 | Apparatus for measuring fluid leakage from a valve using ultrasonic wave, sound, and temperature variations, and method for measuring fluid leakage using same |
-
2015
- 2015-12-10 CN CN201510909316.7A patent/CN105571675B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1092862A (en) * | 1993-03-18 | 1994-09-28 | 清华大学 | Self-correcting supersonic level gauge |
| CN1314992A (en) * | 1998-07-03 | 2001-09-26 | 奈勒斯菲尔德控制有限公司 | Method and arrangement for measuring fluid |
| WO2001067051A1 (en) * | 2000-03-09 | 2001-09-13 | Nest International N.V. | Simultaneous determination of multiphase flowrates and concentrations |
| CN1427948A (en) * | 2000-03-09 | 2003-07-02 | 内斯特国际有限公司 | Simultaneous determination of multiphase flowrates and concentrations |
| US20030006178A1 (en) * | 2000-08-29 | 2003-01-09 | Ron James | Fish pond filter system |
| CN1334457A (en) * | 2001-09-11 | 2002-02-06 | 中国石油天然气股份有限公司 | Method for detecting and checking liquid holding ratio of multi-phase tubular stream |
| CN101960303A (en) * | 2008-11-11 | 2011-01-26 | 韩国电力系统开发设计有限公司 | Apparatus for measuring fluid leakage from a valve using ultrasonic wave, sound, and temperature variations, and method for measuring fluid leakage using same |
| CN101839746A (en) * | 2009-10-25 | 2010-09-22 | 梁法春 | Method and device for measuring accumulated liquid of natural gas pipeline |
Non-Patent Citations (2)
| Title |
|---|
| 未小会: "管道积液超声波检测技术研究", 《中国优秀硕士学位论文全文数据库工程科技Ⅰ辑》 * |
| 钱小平: "气液混输管道声学检测及安全运行研究", 《中国优秀硕士学位论文全文数据库工程科技Ⅰ辑》 * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105865531A (en) * | 2016-06-06 | 2016-08-17 | 无锡市翱宇特新科技发展有限公司 | Pipeline flow monitoring system |
| CN109596180A (en) * | 2019-01-22 | 2019-04-09 | 中国石油大学(华东) | A kind of experimental provision and method of underwater gas transportation pipeline Release and dispersion and scattered burning of overflowing |
| CN109596180B (en) * | 2019-01-22 | 2021-05-04 | 中国石油大学(华东) | Experimental device and method for leakage diffusion and overflow diffusion combustion of underwater gas transmission pipeline |
| CN113090958A (en) * | 2021-03-12 | 2021-07-09 | 西南石油大学 | Gas pipeline safety prevention and control monitoring method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105571675B (en) | 2018-12-14 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101839746A (en) | Method and device for measuring accumulated liquid of natural gas pipeline | |
| US20200182736A1 (en) | Fuel leakage monitoring apparatus and method in pipe line | |
| US10458871B2 (en) | Apparatus and method for measuring the pressure inside a pipe or container | |
| US6363788B1 (en) | Noninvasive detection of corrosion, mic, and foreign objects in containers, using guided ultrasonic waves | |
| EP1697698B1 (en) | Diagnostics of impulse piping in an industrial process | |
| CN105403288A (en) | Gas pipeline effusion monitoring system and monitoring method | |
| MX2010014443A (en) | Apparatus and method to locate an object in a pipeline. | |
| CN204062504U (en) | Pipeline leakage testing device | |
| CN102644851A (en) | Intelligent detection ball for dry natural gas pipeline | |
| CN105571675A (en) | Safety monitoring system and monitoring method for gas pipeline | |
| CN103726834A (en) | Sustained casing pressure diagnosis device and method | |
| CN104122192A (en) | A device and a method for detecting metal corrosion status | |
| CN109185707B (en) | Oil-gas pipeline Hydrate Plugging monitoring device and monitoring method based on ultrasound | |
| JP2007047056A (en) | Ultrasonic leakage position detection device | |
| CN105737944A (en) | Device and method for detecting oil level of oil storage cabinet of corrugated pipe tube transformer | |
| US7802470B2 (en) | Ultrasonic liquid level detector | |
| CN105547414A (en) | Gas pipeline monitoring system and monitoring method thereof | |
| KR101608819B1 (en) | Apparatus and system for detacting oil leakage of gas station to prevent pollution of soil or underwater | |
| CN105547413A (en) | Gas pipeline effusion monitoring system with acoustic hood and monitoring method thereof | |
| CN101532867A (en) | Non-contact liquid level detecting device suitable for complex working conditions | |
| JP6221624B2 (en) | Fluid type discrimination device and fluid type discrimination method | |
| CN105408688A (en) | Method for measuring thickness of boiler water tube | |
| JP4329773B2 (en) | Ultrasonic inspection method for fluororesin inspection object | |
| CN203396370U (en) | Dry coupling permanently installed ultrasonic probe | |
| CN110410686A (en) | A kind of water supply line icing detection system and method based on ultrasound |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| TA01 | Transfer of patent application right | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20181029 Address after: 221400 Jiangsu province Xuzhou city Xinyi double pond town industrial concentration area Applicant after: Xuzhou Cincinnati New Material Co., Ltd. Address before: 214101 room two, science and Technology Pioneer Park, 34 plot 7, Changjiang Road, Wuxi, Jiangsu, 502 Applicant before: TuoNeng Automation Technology (Wuxi) Co., Ltd. |
|
| GR01 | Patent grant | ||
| GR01 | Patent grant |