CN112665782B - Gas pressure online monitoring system and online monitoring method - Google Patents
Gas pressure online monitoring system and online monitoring method Download PDFInfo
- Publication number
- CN112665782B CN112665782B CN202011492268.3A CN202011492268A CN112665782B CN 112665782 B CN112665782 B CN 112665782B CN 202011492268 A CN202011492268 A CN 202011492268A CN 112665782 B CN112665782 B CN 112665782B
- Authority
- CN
- China
- Prior art keywords
- pressure
- valve
- gas
- pipeline
- air pump
- 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.)
- Active
Links
Images
Landscapes
- Measuring Fluid Pressure (AREA)
Abstract
The application discloses online gas pressure monitoring system and monitoring method, wherein, online gas pressure monitoring system includes that T word pipeline, air inlet pipe way, exhaust pipe way, pressure sensor, air pump and the control unit constitute, the standard pressure gauge meter of the usable correction of online gas pressure monitoring system carries out the check-up to the online monitoring gauge meter when carrying out component/humidity detection to the gas that lets in this system inside, has solved and has needed the problem that the power failure goes on when carrying out the check-up to the online monitoring gauge meter, still can utilize simultaneously the control unit control the automatic check-up of standard pressure gauge meter is carried out to the standard pressure gauge meter that the on-off state of air inlet pipe way, exhaust pipe way and the standard pressure gauge meter that reads and pressure sensor's registration.
Description
Technical Field
The application relates to the technical field of power equipment, in particular to an online gas pressure monitoring system and an online gas pressure monitoring method.
Background
In recent years, with the vigorous development of power grid construction, the online monitoring technology is used as an extension of a live detection technology and is widely applied to newly-built intelligent substations. The gas pressure on-line monitoring technology is one of the technologies, and is widely applied to various gas-filled (SF 6 gas insulation is used as a medium) devices of a transformer substation, such as a circuit breaker, a disconnecting link and a combined electrical appliance, so that the workload of manually copying an SF6 gas density meter originally is greatly reduced, and meanwhile, the real-time monitoring characteristic of the gas pressure on-line monitoring technology is also beneficial for operators to master the pressure change of the devices, so that the defects are found and processed in advance.
The problem of the gas pressure on-line monitoring device is that the stability and the accuracy are poor, and the gas pressure on-line monitoring device is composed of precise electronic elements, so that the phenomenon that the field on-line monitoring value is not matched with the mechanical meter counting value or false alarm occurs along with the time lapse under the complex electromagnetic environment of a transformer substation, so that the gas pressure on-line monitoring device is checked regularly, and the problem equipment is very necessary to be replaced. The conventional pressure gauge calibration method needs power failure, and the calibration process is complicated and is not suitable for wide development.
Disclosure of Invention
In order to solve the technical problem, the application provides an online gas pressure monitoring system and a monitoring method, so that the purpose of online live check of an online monitoring pressure gauge is realized while component/humidity detection is carried out on gas, and the problem that power failure is needed to be carried out when the online monitoring pressure gauge is checked is solved.
In order to achieve the technical purpose, the embodiment of the application provides the following technical scheme:
an online gas pressure monitoring system comprising:
a T-shaped pipeline;
the air inlet pipeline is connected with the air inlet end of the T-shaped pipeline;
the exhaust pipeline is connected with the exhaust end of the T-shaped pipeline;
the pressure detection end of the T-shaped pipeline is used for arranging a standard pressure gauge;
the pressure sensor is arranged in the T-shaped pipeline;
the air pump is arranged in the air inlet pipeline;
the control unit is used for controlling the conduction states of the air inlet pipeline and the exhaust pipeline;
is connected with the control unit and the air pump and is used for controlling the pressurization state of the air pump.
Optionally, the control unit is further configured to display a value of the pressure sensor and/or the standard pressure gauge.
Optionally, a first valve assembly is arranged in the air intake pipeline;
a second valve combination is arranged in the exhaust pipeline;
the control unit is used for controlling the conduction states of the first valve combination and the second valve combination.
Optionally, the first valve assembly includes a first ball valve and a first electromagnetic valve, the first ball valve is disposed at one end of the air pump far away from the T-shaped pipe, and the first electromagnetic valve is disposed at one end of the air pump facing the T-shaped pipe.
Optionally, the second valve combination comprises a second ball valve and a second solenoid valve;
the second electromagnetic valve is arranged on one side, facing the T-shaped pipeline, of the second spherical valve.
Optionally, the air inlet pipeline is used for receiving sulfur hexafluoride gas.
An online gas pressure monitoring method implemented by the online gas pressure monitoring system of any one of the above embodiments, the online gas pressure monitoring method comprising:
arranging a calibrated standard pressure gauge at a pressure detection end of the T-shaped pipeline;
connecting the air inlet pipeline with a preset gas inflation device so as to utilize the preset gas inflation device to inflate preset gas into the gas pressure online monitoring system;
connecting the exhaust pipeline with a preset gas detection instrument for detecting the preset gas;
and comparing and checking the readings of the standard pressure gauge and the on-line monitoring equipment.
Optionally, when a first valve assembly is arranged in the air inlet pipeline; a second valve assembly is arranged in the exhaust pipeline; the control unit is used for controlling the conduction states of the first valve combination and the second valve combination; the first valve combination comprises a first spherical valve and a first electromagnetic valve, the first spherical valve is arranged at one end, far away from the T-shaped pipeline, of the air pump, and the first electromagnetic valve is arranged at one end, facing the T-shaped pipeline, of the air pump; the second valve combination comprises a second ball valve and a second electromagnetic valve; the second electromagnetic valve is arranged when the second ball valve faces one side of the T-shaped pipeline;
the calibration process of the standard pressure gauge comprises the following steps:
s1: connecting the air inlet pipeline with a gas source of preset gas, and connecting the exhaust pipeline with a collection device of the preset gas;
s2: connecting a standard pressure gauge to be corrected to the pressure detection end;
s3: closing the second electromagnetic valve, opening the first electromagnetic valve, and inflating the T-shaped pipeline through an air pump;
s4: when the pressure value in the T-shaped pipeline is the rated pressure, stopping inflating the air pump, closing the first electromagnetic valve, comparing the indication number of the pressure sensor with the indication number of the standard pressure meter to be corrected, judging whether the rated pressure reaches the upper limit pressure or not when the indication number of the pressure sensor and the indication number of the standard pressure meter to be corrected meet the requirement, if not, increasing the rated pressure by a preset step length and returning to execute the step S2; if yes, opening a second electromagnetic valve to perform pressure relief and exhaust, taking down a gas source of the preset gas and the preset gas collecting device after the pressure relief and exhaust process is completed, and opening the first electromagnetic valve;
and when the indication number of the pressure sensor does not meet the requirement of the indication number of the standard pressure meter to be corrected, replacing the standard pressure meter to be corrected.
Optionally, the preset gas includes sulfur hexafluoride gas.
According to the technical scheme, the embodiment of the application provides an online gas pressure monitoring system and a monitoring method, wherein the online gas pressure monitoring system comprises a T-shaped pipeline, a gas inlet pipeline, a gas exhaust pipeline, a pressure sensor, a gas pump and a control unit, the online gas pressure monitoring system can be verified by using a corrected standard pressure gauge when detecting components/humidity of gas introduced into the system, the problem that power failure is needed to be caused when the online gas pressure monitoring system is verified is solved, and meanwhile, the control unit can be used for controlling the on-off state of the gas inlet pipeline and the gas exhaust pipeline and the read indicating numbers of the standard pressure gauge and the pressure sensor to automatically verify the standard pressure gauge.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings used in the embodiments or the prior art descriptions will be briefly described below, it is obvious that the drawings in the following description are only the embodiments of the present application, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.
Fig. 1 is a schematic structural diagram of an online gas pressure monitoring system according to an embodiment of the present application;
FIG. 2 is a schematic flow chart of a method for online monitoring of gas pressure according to an embodiment of the present disclosure;
fig. 3 is a schematic flowchart of a calibration process for a standard pressure gauge to be calibrated according to an embodiment of the present application.
Detailed Description
Embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. While certain embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be construed as limited to the embodiments set forth herein, but rather are provided for a more complete and thorough understanding of the present disclosure. It should be understood that the drawings and the embodiments of the disclosure are for illustration purposes only and are not intended to limit the scope of the disclosure.
The term "include" and variations thereof as used herein are open-ended, i.e., "including but not limited to". The term "based on" is "based, at least in part, on". The term "one embodiment" means "at least one embodiment"; the term "another embodiment" means "at least one additional embodiment"; the term "some embodiments" means "at least some embodiments". Relevant definitions for other terms will be given in the following description.
It should be noted that the terms "first", "second", and the like in the present disclosure are only used for distinguishing different devices, modules or units, and are not used for limiting the order or interdependence relationship of the functions performed by the devices, modules or units.
It is noted that references to "a", "an", and "the" modifications in this disclosure are intended to be illustrative rather than limiting, and that those skilled in the art will recognize that "one or more" may be used unless the context clearly dictates otherwise.
The embodiment of the present application provides an online monitoring system of gas pressure, as shown in fig. 1, includes:
a T-shaped pipeline 1;
the air inlet pipeline 2 is connected with the air inlet end of the T-shaped pipeline 1;
the exhaust pipeline 3 is connected with the exhaust end of the T-shaped pipeline 1;
the pressure detection end of the T-shaped pipeline 1 is used for arranging a standard pressure gauge 5;
the pressure sensor 4 is arranged in the T-shaped pipeline 1;
an air pump 22 disposed in the intake pipe 2;
a control unit 7 for controlling the conduction state of the intake line 2 and the exhaust line 3;
is connected with the control unit 7 and the air pump 22 and is used for controlling the pressurization state of the air pump 22.
In this embodiment, as can be seen from fig. 1, a cross line "one" portion of the T-shaped pipe 1 is connected to the intake pipe 2 and the exhaust pipe 3 as an intake end and an exhaust end, respectively, and a port of a vertical line "i" portion of the T-shaped pipe 1 is used as a pressure detection end for installing the standard pressure gauge 5.
The air pump 22 is disposed in the air inlet pipeline 2, and is configured to pressurize and pump a preset gas into the T-shaped pipeline 1 when the air inlet pipeline 2 is connected to a gas source of the preset gas, so as to achieve the purpose of pressurizing the inside of the T-shaped pipeline 1.
In addition, the control unit 7 can realize calibration of the standard pressure gauge 5 and online monitoring of the preset gas pressure by controlling the conduction state of the intake line 2 and the exhaust line 3.
On the basis of the above embodiments, in an embodiment of the present application, the control unit 7 is further configured to display the value of the pressure sensor 4 and/or the standard pressure gauge 5, and specifically, the control unit 7 is configured to perform calibration of the standard pressure gauge 5 and online monitoring of the preset gas pressure by reading the value of the pressure sensor 4 and/or the standard pressure gauge 5.
Fig. 1 also shows a pipeline 6 used between the T-shaped pipeline 1 and the standard pressure sensor 5, where the preset gas includes but is not limited to sulfur hexafluoride gas, that is, the air inlet pipeline 2 is used for receiving sulfur hexafluoride gas.
Alternatively, still referring to fig. 1, a first valve combination is provided in the intake line 2;
a second valve combination is arranged in the exhaust pipeline 3;
the control unit 7 is configured to control the conduction states of the first valve assembly and the second valve assembly.
The first valve combination comprises a first ball valve 23 and a first electromagnetic valve 21, the first ball valve 23 is arranged at one end, far away from the T-shaped pipeline 1, of the air pump 22, and the first electromagnetic valve 21 is arranged at one end, facing the T-shaped pipeline 1, of the air pump 22.
The second valve combination comprises a second ball valve 32 and a second solenoid valve 31;
the second electromagnetic valve 31 is disposed on a side of the second ball valve 32 facing the T-shaped pipe 1.
Specifically, during the test, the standard manometer 5 provided at the pressure detection side needs to be a calibrated standard manometer 5.
The specific steps when the preset gas is monitored on line comprise:
arranging a calibrated standard pressure gauge 5 at a pressure detection end of the T-shaped pipeline 1;
connecting the air inlet pipeline 2 with a preset gas inflation device so as to utilize the preset gas inflation device to inflate a preset gas into the gas pressure online monitoring system;
connecting the exhaust pipeline 3 with a preset gas detection instrument for detecting the preset gas;
and comparing and checking the readings of the standard pressure gauge 5 with an online monitoring device.
Wherein, the process of calibrating the standard manometer 5 comprises:
s1: the air inlet pipeline 2 is connected with a gas source of preset gas, and the exhaust pipeline 3 is connected with a collection device of the preset gas;
s2: the pressure detection end is connected with a standard pressure gauge 5 to be corrected;
s3: the second electromagnetic valve 31 is closed, the first electromagnetic valve 21 is opened, and the air pump 22 is used for inflating the T-shaped pipeline 1;
s4: when the pressure value in the T-shaped pipeline 1 is the rated pressure, stopping inflating the air pump 22, closing the first electromagnetic valve 21, comparing the indication number of the pressure sensor 4 with the indication number of the standard pressure gauge 5 to be corrected, judging whether the rated pressure reaches the upper limit pressure or not when the indication number of the pressure sensor 4 and the indication number of the standard pressure gauge 5 to be corrected meet the requirement, if not, increasing the rated pressure by a preset step length and returning to execute the step S2; if yes, opening the second electromagnetic valve 31 to perform pressure relief and exhaust, and taking down the gas source of the preset gas and the collection device of the preset gas after the pressure relief and exhaust process is completed, and opening the first electromagnetic valve 21;
and when the indication number of the pressure sensor 4 and the indication number of the standard pressure gauge 5 to be corrected do not meet the requirement, replacing the standard pressure gauge 5 to be corrected.
The gas pressure on-line monitoring method provided by the embodiment of the present application is described below, and the gas pressure on-line monitoring method described below may be referred to in correspondence with the gas pressure on-line monitoring system described above.
Correspondingly, an embodiment of the present application provides an online gas pressure monitoring method, which is implemented based on the online gas pressure monitoring system described in any of the above embodiments, and as shown in fig. 2, the online gas pressure monitoring method includes:
s101: arranging a calibrated standard pressure gauge at a pressure detection end of the T-shaped pipeline;
s102: connecting the air inlet pipeline with a preset gas inflation device so as to utilize the preset gas inflation device to inflate a preset gas into the gas pressure online monitoring system;
s103: connecting the exhaust pipeline with a preset gas detection instrument for detecting the preset gas;
s104: and comparing and checking the readings of the standard pressure gauge and the on-line monitoring equipment.
Optionally, when a first valve assembly is arranged in the air inlet pipeline; a second valve combination is arranged in the exhaust pipeline; the control unit is used for controlling the conduction states of the first valve combination and the second valve combination; the first valve combination comprises a first spherical valve and a first electromagnetic valve, the first spherical valve is arranged at one end, far away from the T-shaped pipeline, of the air pump, and the first electromagnetic valve is arranged at one end, facing the T-shaped pipeline, of the air pump; the second valve combination comprises a second ball valve and a second electromagnetic valve; the second electromagnetic valve is arranged on one side of the second spherical valve facing the T-shaped pipeline;
as shown in fig. 3, the calibration process of the standard pressure gauge includes:
s1: connecting the air inlet pipeline with a gas source of preset gas, and connecting the exhaust pipeline with a collection device of the preset gas;
s2: connecting a standard pressure gauge to be corrected to the pressure detection end;
s3: closing the second electromagnetic valve, opening the first electromagnetic valve, and inflating the T-shaped pipeline through an air pump;
s4: when the pressure value in the T-shaped pipeline is the rated pressure, stopping inflating the air pump, closing the first electromagnetic valve, comparing the indication number of the pressure sensor with the indication number of the standard pressure meter to be corrected, judging whether the rated pressure reaches the upper limit pressure or not when the indication number of the pressure sensor and the indication number of the standard pressure meter to be corrected meet the requirement, if not, increasing the rated pressure by a preset step length and returning to execute the step S2; if so, opening a second electromagnetic valve to carry out pressure relief and exhaust, and taking down a gas source of the preset gas and a collection device of the preset gas after the pressure relief and exhaust process is finished, and opening the first electromagnetic valve;
and when the indication number of the pressure sensor does not meet the requirement of the indication number of the standard pressure meter to be corrected, replacing the standard pressure meter to be corrected.
Optionally, the preset gas includes sulfur hexafluoride gas.
To sum up, the embodiment of the application provides an online gas pressure monitoring system and a monitoring method, wherein, the online gas pressure monitoring system comprises a T-shaped pipeline, an air inlet pipeline, an exhaust pipeline, a pressure sensor, an air pump and a control unit, the standard pressure gauge capable of being corrected by the online gas pressure monitoring system checks the online gas pressure gauge while detecting the component/humidity of the gas introduced into the online gas pressure monitoring system, the problem that power failure is needed to perform when the online gas pressure gauge is checked is solved, and meanwhile, the control unit can be used for controlling the on-off state of the air inlet pipeline and the exhaust pipeline and the read indication values of the standard pressure gauge and the pressure sensor to perform automatic checking of the standard pressure gauge.
Example 1 provides a gas pressure online monitoring system, according to one or more embodiments disclosed herein, including:
a T-shaped pipeline;
the air inlet pipeline is connected with the air inlet end of the T-shaped pipeline;
the exhaust pipeline is connected with the exhaust end of the T-shaped pipeline;
the pressure detection end of the T-shaped pipeline is used for arranging a standard pressure gauge;
the pressure sensor is arranged in the T-shaped pipeline;
the air pump is arranged in the air inlet pipeline;
the control unit is used for controlling the conduction state of the air inlet pipeline and the exhaust pipeline;
and the air pump is connected with the control unit and the air pump and is used for controlling the pressurization state of the air pump.
In accordance with one or more embodiments disclosed herein, example 2 provides the gas pressure online monitoring system of example 1, the control unit further being configured to display values of the pressure sensor and/or the gauge.
Example 3 provides the gas pressure online monitoring system of example 1, in accordance with one or more embodiments disclosed herein, the intake conduit having a first valve combination disposed therein;
a second valve combination is arranged in the exhaust pipeline;
the control unit is used for controlling the conduction states of the first valve combination and the second valve combination.
In accordance with one or more embodiments disclosed herein, example 4 provides the gas pressure online monitoring system of example 3, the first valve assembly includes a first globe valve and a first solenoid valve, the first globe valve is disposed at an end of the air pump away from the T-shaped pipe, and the first solenoid valve is disposed at an end of the air pump facing the T-shaped pipe.
In accordance with one or more embodiments disclosed herein, example 5 provides the online gas pressure monitoring system of example 3, the second valve combination comprising a second globe valve and a second solenoid valve;
the second electromagnetic valve is arranged on one side, facing the T-shaped pipeline, of the second spherical valve.
Example 6 provides the gas pressure online monitoring system of example 1, in accordance with one or more embodiments disclosed herein, the inlet line being configured to receive sulfur hexafluoride gas.
In accordance with one or more embodiments disclosed herein, example 7 provides a gas pressure online monitoring method implemented based on any one of the above gas pressure online monitoring systems, the gas pressure online monitoring method including:
arranging a calibrated standard pressure gauge at a pressure detection end of the T-shaped pipeline;
connecting the air inlet pipeline with a preset gas inflation device so as to utilize the preset gas inflation device to inflate a preset gas into the gas pressure online monitoring system;
connecting the exhaust pipeline with a preset gas detection instrument for detecting the preset gas;
and comparing and checking the readings of the standard pressure gauge with the online monitoring equipment.
In accordance with one or more embodiments disclosed herein, example 8 provides the gas pressure online monitoring method of example 7, when a first valve combination is disposed in the intake conduit; a second valve combination is arranged in the exhaust pipeline; the control unit is used for controlling the conduction states of the first valve combination and the second valve combination; the first valve combination comprises a first spherical valve and a first electromagnetic valve, the first spherical valve is arranged at one end, far away from the T-shaped pipeline, of the air pump, and the first electromagnetic valve is arranged at one end, facing the T-shaped pipeline, of the air pump; the second valve combination comprises a second ball valve and a second electromagnetic valve; the second electromagnetic valve is arranged on one side of the second spherical valve facing the T-shaped pipeline;
the calibration process of the standard pressure gauge comprises the following steps:
s1: connecting the air inlet pipeline with a gas source of preset gas, and connecting the exhaust pipeline with a collection device of the preset gas;
s2: connecting a standard pressure gauge to be corrected to the pressure detection end;
s3: closing the second electromagnetic valve, opening the first electromagnetic valve, and inflating the T-shaped pipeline through an air pump;
s4: when the pressure value in the T-shaped pipeline is the rated pressure, stopping inflating the air pump, closing the first electromagnetic valve, comparing the indication number of the pressure sensor with the indication number of the standard pressure meter to be corrected, judging whether the rated pressure reaches the upper limit pressure or not when the indication number of the pressure sensor and the indication number of the standard pressure meter to be corrected meet the requirement, if not, increasing the rated pressure by a preset step length and returning to execute the step S2; if yes, opening a second electromagnetic valve to perform pressure relief and exhaust, taking down a gas source of the preset gas and the preset gas collecting device after the pressure relief and exhaust process is completed, and opening the first electromagnetic valve;
and when the indication number of the pressure sensor does not meet the requirement of the indication number of the standard pressure meter to be corrected, replacing the standard pressure meter to be corrected.
Example 9 provides the gas pressure online monitoring system of example 7, in accordance with one or more embodiments disclosed herein, the predetermined gas comprising sulfur hexafluoride gas.
Although the subject matter has been described in language specific to structural features and/or methodological acts, it is to be understood that the subject matter defined in the appended claims is not necessarily limited to the specific features or acts described above. Rather, the specific features and acts described above are disclosed as example forms of implementing the claims.
While several specific implementation details are included in the above discussion, these should not be construed as limiting the scope of the disclosure. Certain features that are described in the context of separate embodiments can also be implemented in combination in a single embodiment. Conversely, various features that are described in the context of a single embodiment can also be implemented in multiple embodiments separately or in any suitable subcombination.
The foregoing description is only exemplary of the preferred embodiments of the disclosure and is illustrative of the principles of the technology employed. It will be appreciated by those skilled in the art that the scope of the disclosure herein is not limited to the particular combination of features described above, but also encompasses other embodiments in which any combination of the features described above or their equivalents does not depart from the spirit of the disclosure. For example, the above features and the technical features disclosed in the present disclosure (but not limited to) having similar functions are replaced with each other to form the technical solution.
Claims (7)
1. The on-line gas pressure monitoring method is applied to an on-line gas pressure monitoring system, and the on-line gas pressure monitoring system comprises the following steps:
a T-shaped pipeline;
the air inlet pipeline is connected with the air inlet end of the T-shaped pipeline;
the exhaust pipeline is connected with the exhaust end of the T-shaped pipeline;
the pressure detection end of the T-shaped pipeline is used for arranging a standard pressure gauge;
the pressure sensor is arranged in the T-shaped pipeline;
the air pump is arranged in the air inlet pipeline;
the control unit is used for controlling the conduction state of the air inlet pipeline and the exhaust pipeline;
the air pump is connected with the control unit and the air pump and used for controlling the pressurization state of the air pump;
the gas pressure online monitoring method comprises the following steps:
arranging the calibrated standard pressure gauge at the pressure detection end of the T-shaped pipeline;
connecting the air inlet pipeline with a preset gas inflation device so as to utilize the preset gas inflation device to inflate a preset gas into the gas pressure online monitoring system;
connecting the exhaust pipeline with a preset gas detection instrument for detecting the preset gas;
comparing and checking the readings of the standard pressure gauge with the online monitoring gauge;
when the air inlet pipeline is provided with a first valve combination; a second valve assembly is arranged in the exhaust pipeline; the control unit is used for controlling the conduction states of the first valve combination and the second valve combination; the first valve combination comprises a first spherical valve and a first electromagnetic valve, the first spherical valve is arranged at one end, far away from the T-shaped pipeline, of the air pump, and the first electromagnetic valve is arranged at one end, facing the T-shaped pipeline, of the air pump; the second valve combination comprises a second ball valve and a second electromagnetic valve; the second electromagnetic valve is arranged when the second ball valve faces one side of the T-shaped pipeline;
the calibration process of the standard pressure gauge comprises the following steps:
s1: connecting the air inlet pipeline with a gas source of preset gas, and connecting the exhaust pipeline with a collection device of the preset gas;
s2: connecting a standard pressure gauge meter to be corrected at the pressure detection end;
s3: closing the second electromagnetic valve, opening the first electromagnetic valve, and inflating the T-shaped pipeline through an air pump;
s4: when the pressure value in the T-shaped pipeline is the rated pressure, stopping inflating the air pump, closing the first electromagnetic valve, comparing the indication number of the pressure sensor with the indication number of the standard pressure meter to be corrected, judging whether the rated pressure reaches the upper limit pressure or not when the indication number of the pressure sensor and the indication number of the standard pressure meter to be corrected meet the requirement, if not, increasing the rated pressure by a preset step length and returning to execute the step S3; if so, opening a second electromagnetic valve to carry out pressure relief and exhaust, and taking down a gas source of the preset gas and a collection device of the preset gas after the pressure relief and exhaust process is finished, and opening the first electromagnetic valve;
and when the indication number of the pressure sensor and the indication number of the standard pressure gauge to be corrected do not meet the requirement, replacing the standard pressure gauge to be corrected.
2. The method of claim 1, wherein the control unit is further configured to display the value of the pressure sensor and/or the gauge.
3. The method of claim 1, wherein a first valve combination is disposed in the intake conduit;
a second valve assembly is arranged in the exhaust pipeline;
the control unit is used for controlling the conduction states of the first valve combination and the second valve combination.
4. The method of claim 3, wherein the first valve assembly comprises a first ball valve disposed at an end of the air pump away from the T-pipe and a first solenoid valve disposed at an end of the air pump toward the T-pipe.
5. The method of claim 3, wherein the second valve combination comprises a second globe valve and a second solenoid valve;
the second electromagnetic valve is arranged on one side, facing the T-shaped pipeline, of the second spherical valve.
6. The method of claim 1, wherein the inlet line is configured to receive sulfur hexafluoride gas.
7. The method of claim 1, wherein the predetermined gas comprises sulfur hexafluoride gas.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011492268.3A CN112665782B (en) | 2020-12-16 | 2020-12-16 | Gas pressure online monitoring system and online monitoring method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011492268.3A CN112665782B (en) | 2020-12-16 | 2020-12-16 | Gas pressure online monitoring system and online monitoring method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112665782A CN112665782A (en) | 2021-04-16 |
| CN112665782B true CN112665782B (en) | 2023-04-14 |
Family
ID=75404425
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011492268.3A Active CN112665782B (en) | 2020-12-16 | 2020-12-16 | Gas pressure online monitoring system and online monitoring method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112665782B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113589857B (en) * | 2021-09-30 | 2021-12-31 | 广州能源检测研究院 | Gas negative pressure power regulating system with fault diagnosis function and diagnosis method |
| CN114894401B (en) * | 2022-07-12 | 2022-09-23 | 常州埃依琦科技有限公司 | SF6 gas comprehensive detection module |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202839456U (en) * | 2012-08-29 | 2013-03-27 | 江西萍乡供电公司 | Density relay with valve connector |
| CN103048616B (en) * | 2012-12-26 | 2015-11-18 | 国网山东省电力公司淄博供电公司 | SF 6the charged calibration equipment of density monitor |
| CN203431383U (en) * | 2013-08-30 | 2014-02-12 | 国家电网公司 | Gas pressure meter tee-joint connector assembly for electrical power system |
| CN104483454A (en) * | 2014-12-30 | 2015-04-01 | 国家电网公司 | Gas detecting joint device |
| CN107940039A (en) * | 2018-01-15 | 2018-04-20 | 国网江苏省电力有限公司南通供电分公司 | The new three-way connection seat for being used to connect gas gauge |
| CN208588499U (en) * | 2018-08-22 | 2019-03-08 | 中国长江电力股份有限公司 | SF6Gas gauge electric contact automatic check device |
| CN110726510A (en) * | 2019-09-04 | 2020-01-24 | 贵州电网有限责任公司 | Hydraulic mechanism capable of checking pressure gauge without power outage and checking method thereof |
-
2020
- 2020-12-16 CN CN202011492268.3A patent/CN112665782B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN112665782A (en) | 2021-04-16 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN112665782B (en) | Gas pressure online monitoring system and online monitoring method | |
| CN105606666B (en) | A kind of portable switch cabinet partial discharge detection device and method based on gas sensor | |
| CN105425775B (en) | A kind of sensor fault automatic judging method and system | |
| CN201867290U (en) | Air tightness testing device for automobile air-conditioning box | |
| CN201348557Y (en) | Air leakage rate field test apparatus for air conditioner | |
| CN103472193A (en) | Quick tester for transmitter laboratory | |
| CN103048616A (en) | Live calibration device for SF6 (sulfur hexafluoride) density relay | |
| CN100516815C (en) | Automatic testing method and apparatus for performance of breathing relief valve | |
| CN109916568A (en) | Electric machine controller sealing propertytest system, device and method | |
| CN112710437A (en) | SF6Dry type vacuum leak detection system and leak detection method for breaker box body | |
| CN212568681U (en) | Integrated pipeline device for sulfur hexafluoride SF6 gas test | |
| CN110726547A (en) | Portable comprehensive checking device for pressure protection device | |
| CN111022935B (en) | Method, device and system for detecting broken leakage of air pipe network of sewage treatment equipment | |
| CN108709687A (en) | A kind of petroleum vapor recovery detector calibrating installation and calibration method | |
| CN112326154B (en) | Test device and test method for rapid exhaust valve for air bag type pantograph | |
| CN115236580A (en) | Method for detecting state quantity of current transformer in GIS of thermal power energy storage system | |
| CN201025464Y (en) | Automatic testing device for respiratory secure valve performance | |
| CN111999014A (en) | Molecular pump unit and vacuum system leak detection method | |
| CN210319411U (en) | Fuel cell hydrogen supply system test platform | |
| CN106680143A (en) | Verifying device of SF6 gas density sensor | |
| CN214040510U (en) | Ventilation leakage detector controlled by relay | |
| CN111044218A (en) | Response time measuring device of vacuum pressure gauge | |
| CN216480303U (en) | Gas pipeline detection equipment | |
| CN111458464A (en) | SF for sulfur hexafluoride6Integrated pipeline device for gas test and test method | |
| CN219694466U (en) | Assembled battery leak detection structure and system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |