CN109443732A - More gas circuit state monitoring apparatus and method - Google Patents
More gas circuit state monitoring apparatus and method Download PDFInfo
- Publication number
- CN109443732A CN109443732A CN201811517350.XA CN201811517350A CN109443732A CN 109443732 A CN109443732 A CN 109443732A CN 201811517350 A CN201811517350 A CN 201811517350A CN 109443732 A CN109443732 A CN 109443732A
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- China
- Prior art keywords
- gas
- differential pressure
- flowmeter
- gas circuit
- pressure pickup
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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
- G01M13/00—Testing of machine parts
-
- 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
-
- 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
- G01M3/2807—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 pipes
- G01M3/2815—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 pipes using pressure measurements
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Examining Or Testing Airtightness (AREA)
Abstract
More gas circuit state monitoring apparatus, including control system, flowmeter, differential pressure pickup and solenoid valve, the more gas circuits are arranged in parallel, the gas outlet of more gas circuits in parallel is connected with main line, it is provided with instrument and meter on main line, the differential pressure pickup and the solenoid valve are mounted in every gas circuit, flowmeter is installed on main line, flowmeter is located at the entrance of instrument and meter, and control system is connect with flowmeter and all differential pressure pickups respectively by communication cable.The monitoring method of more gas circuit state monitoring apparatus includes two kinds of monitoring patterns of gas path on-off and blowby gas path.The present invention has rational design, structure is simple, high degree of automation, has prevented the triviality and unreliability of artificial judgment gas path on-off, gas leakage, can be controlled for system and live multiple spot monitoring provides the basic data of gas circuit state, safeguards system control and monitoring data it is normal.
Description
Technical field
The invention belongs to gas detection technology fields, and in particular to more gas circuit state monitoring apparatus of one kind and method.
Background technique
Multipath gas detection technique has in industrial technical field to be extremely widely applied, such as in instrument calibration link,
When needing to verify more instrument and meters, it is related to the control and application of multipath gas；Detection carries out more at the scene
When point gas-monitoring, the control of more gas circuits is also related to.Gas circuit state is normally that instrument check or monitoring data are correct
Premise, it is significant to the latter.But at this stage, these gas circuits whether the gas circuits state such as cut-off, leak normal, still do not have
Suitable technological means judges, manually to check.
Summary of the invention
The present invention in order to solve shortcoming in the prior art, provide a kind of scientific in principle, monitoring it is accurate, high-efficient,
The more gas circuit state monitoring apparatus and method of real time monitoring.
In order to solve the above technical problems, the present invention adopts the following technical scheme: more gas circuit state monitoring apparatus, including control
System, flowmeter, differential pressure pickup and solenoid valve processed, the more gas circuits are arranged in parallel, the outlet of more gas circuits in parallel
Mouthful be connected with main line, be provided with instrument and meter on main line, be mounted in every gas circuit the differential pressure pickup and
The solenoid valve is equipped with flowmeter on main line, and flowmeter is located at the entrance of instrument and meter, and control system passes through communication
Cable is connect with flowmeter and all differential pressure pickups respectively.
Flowmeter, differential pressure pickup and solenoid valve are arranged in a closed container, gas circuit, main line and communication cable
Sealing structure is provided in place of passing through closed container；It is provided with inflatable interface on closed container, is filled with inside closed container
The sulfur hexafluoride gas of certain pressure.
The monitoring method of more gas circuit state monitoring apparatus, including two kinds of monitoring patterns of gas path on-off and blowby gas path；
The monitoring pattern of gas path on-off are as follows: control system is as needed, acquires differential pressure pickup in flowmeter and Ge Zhi gas circuit
Signal, flowmeter and differential pressure pickup have signal simultaneously and detected value is normal, then the gas circuit where determining differential pressure pickup has gas
Stream passes through, and is access；Corresponding solenoid valve should be open in the gas circuit at this time, if the corresponding solenoid valve detected is closure,
It is abnormal then to determine that the solenoid valve is cut-off；
The monitoring pattern of blowby gas path are as follows: control system is as needed, acquires differential pressure pickup in flowmeter and Ge Zhi gas circuit
Signal, flowmeter and differential pressure pickup have signal simultaneously, but flow value is less than normal than normal value, if the pressure difference sensing in a certain gas circuit
Device signal value is also less than normal, and the differential pressure pickup signal of other gas circuits then determines that differential pressure pickup signal value is less than normal in normal range (NR)
Gas circuit, there are gas leak phenomenons.
By adopting the above technical scheme, the present invention has rational design, and structure is simple, and high degree of automation has prevented artificial judgment
Gas path on-off, gas leakage triviality and unreliability, can be controlled for system and live multiple spot monitoring provide the basis of gas circuit state
Data, safeguards system control and monitoring data it is normal.
The key node for being easy to leak in gas circuit, which is connected to, in flowmeter, differential pressure pickup and solenoid valve passes through closed container
It seals, and is filled with sulfur hexafluoride gas, enter air and moisture will not from leakage point in gas circuit and high-tension switch gear,
Effectively ensure that the normal operation of high-tension switch gear.
Detailed description of the invention
Fig. 1 is structural schematic diagram of the invention.
Specific embodiment
As shown in Figure 1, more gas circuit state monitoring apparatus of the invention, including control system 1, flowmeter 2, pressure difference sensing
Device 3 and solenoid valve 4, more gas circuits 5 are arranged in parallel, and the gas outlet of more gas circuits 5 in parallel is connected with main line 6, on main line 6
It is provided with instrument and meter 7, the differential pressure pickup 3 and the solenoid valve 4, main line 6 are mounted in every gas circuit 5
On flowmeter 2 is installed, flowmeter 2 is located at the entrance of instrument and meter 7, control system 1 by communication cable respectively with flow
Table 2 and the connection of all differential pressure pickups 3.
Flowmeter 2, differential pressure pickup 3 and solenoid valve 4 are arranged in a closed container (not shown), gas circuit 5,
Main line 6 and communication cable are provided with sealing structure in place of passing through closed container；Inflatable interface is provided on closed container,
The sulfur hexafluoride gas of certain pressure is filled with inside closed container.Gas is connected in flowmeter 2, differential pressure pickup 3 and solenoid valve 4
The key node that leakage is easy on road 5 is sealed by closed container, and is filled with sulfur hexafluoride gas, makes air and moisture not
It can enter in gas circuit and high-tension switch gear from leakage point, effectively ensure that the normal operation of high-tension switch gear.
The monitoring method of more gas circuit state monitoring apparatus, including two kinds of monitoring patterns of gas path on-off and blowby gas path；
The monitoring pattern of gas path on-off are as follows: control system 1 as needed, acquires differential pressure pickup in flowmeter 2 and Ge Zhi gas circuit 5
3 signal, flowmeter 2 and differential pressure pickup 3 have signal simultaneously and detected value is normal, then determines the gas where differential pressure pickup 3
Road 5 has air-flow to pass through, and is access；Corresponding solenoid valve 4 should be open in the gas circuit 5 at this time, if the corresponding electromagnetism detected
Valve 4 is closure, then it is abnormal to determine that the solenoid valve 4 is cut-off；
The monitoring pattern of blowby gas path are as follows: control system 1 as needed, acquires differential pressure pickup in flowmeter 2 and Ge Zhi gas circuit 5
3 signal, flowmeter 2 and differential pressure pickup 3 have signal simultaneously, but flow value is less than normal than normal value, if the pressure in a certain gas circuit 5
3 signal value of gap sensor is also less than normal, and 3 signal of differential pressure pickup of other gas circuits 5 then determines differential pressure pickup 3 in normal range (NR)
Signal value gas circuit 5 less than normal, there are gas leak phenomenons.
The present embodiment not makes any form of restriction shape of the invention, material, structure etc., all according to this hair
Bright technical spirit any simple modification, equivalent change and modification to the above embodiments, belong to the technology of the present invention side
The protection scope of case.
Claims (3)
- More than 1. gas circuit state monitoring apparatus, it is characterised in that: including control system, flowmeter, differential pressure pickup and solenoid valve, The more gas circuits are arranged in parallel, and the gas outlet of more gas circuits in parallel is connected with main line, are provided with instrument on main line Instrument is mounted on the differential pressure pickup and the solenoid valve in every gas circuit, is equipped with flowmeter on main line, Flowmeter is located at the entrance of instrument and meter, control system by communication cable respectively with flowmeter and all differential pressure pickups Connection.
- 2. more gas circuit state monitoring apparatus according to claim 1, it is characterised in that: flowmeter, differential pressure pickup and Solenoid valve is arranged in a closed container, and gas circuit, main line and communication cable are provided in place of passing through closed container Sealing structure；It is provided with inflatable interface on closed container, the sulfur hexafluoride gas of certain pressure is filled with inside closed container.
- 3. the monitoring method of more gas circuit state monitoring apparatus according to claim 2, it is characterised in that: logical including gas circuit Disconnected and two kinds of monitoring patterns of blowby gas path；The monitoring pattern of gas path on-off are as follows: control system is as needed, acquires differential pressure pickup in flowmeter and Ge Zhi gas circuit Signal, flowmeter and differential pressure pickup have signal simultaneously and detected value is normal, then the gas circuit where determining differential pressure pickup has gas Stream passes through, and is access；Corresponding solenoid valve should be open in the gas circuit at this time, if the corresponding solenoid valve detected is closure, It is abnormal then to determine that the solenoid valve is cut-off；The monitoring pattern of blowby gas path are as follows: control system is as needed, acquires differential pressure pickup in flowmeter and Ge Zhi gas circuit Signal, flowmeter and differential pressure pickup have signal simultaneously, but flow value is less than normal than normal value, if the pressure difference sensing in a certain gas circuit Device signal value is also less than normal, and the differential pressure pickup signal of other gas circuits then determines that differential pressure pickup signal value is less than normal in normal range (NR) Gas circuit, there are gas leak phenomenons.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811517350.XA CN109443732A (en) | 2018-12-12 | 2018-12-12 | More gas circuit state monitoring apparatus and method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811517350.XA CN109443732A (en) | 2018-12-12 | 2018-12-12 | More gas circuit state monitoring apparatus and method |
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| Publication Number | Publication Date |
|---|---|
| CN109443732A true CN109443732A (en) | 2019-03-08 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811517350.XA Pending CN109443732A (en) | 2018-12-12 | 2018-12-12 | More gas circuit state monitoring apparatus and method |
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| CN (1) | CN109443732A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111122069A (en) * | 2019-12-12 | 2020-05-08 | 西安航天发动机有限公司 | Dynamic test system for turbine oxygen pump of engine |
-
2018
- 2018-12-12 CN CN201811517350.XA patent/CN109443732A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111122069A (en) * | 2019-12-12 | 2020-05-08 | 西安航天发动机有限公司 | Dynamic test system for turbine oxygen pump of engine |
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