CN201477421U - On-line gas monitoring device - Google Patents
On-line gas monitoring device Download PDFInfo
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- CN201477421U CN201477421U CN2009202310882U CN200920231088U CN201477421U CN 201477421 U CN201477421 U CN 201477421U CN 2009202310882 U CN2009202310882 U CN 2009202310882U CN 200920231088 U CN200920231088 U CN 200920231088U CN 201477421 U CN201477421 U CN 201477421U
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- monitoring device
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Abstract
The utility model relates to an on-line gas monitoring device which comprises a power module, a gas state acquisition module, a signal conversion module, a signal processing module and an input and output module; the power module supplies power to the on-line gas monitoring device; the output end of the gas state acquisition module is connected with the input end of the signal conversion module, the output end of the signal conversion module is connected with the input end of the signal processing module, and the signal processing module is further connected with the input and output module; the probe of the gas state acquisition module is arranged in a closed space; the closed space is provided with an input port and an output port for the gas to be tested; the on-line gas monitoring device is characterized by further comprising an external device control circuit; and the external device control circuit is connected with the signal processing module. The device can monitor the gas state on line, controls while monitoring, monitors different types of gas on line, can be applied in automation systems, can be connected with rich external interaction equipment, and has the advantages of compact structure, convenient installation and use, and low cost.
Description
Technical field
The utility model relates to a kind of gas controlling device, especially a kind of gas on-line monitoring device.
Background technology
Sulfur hexafluoride (SF
6) gas is a kind of non-flammable forming gas, chemical property is extremely stable, and its insulating capacity under normal pressure is 2.5 times of air, and the arc extinguishing ability is 100 times of air, has incomparable insulation of general dielectric and arc quenching characteristic.Therefore with SF
6Gas has accounted for most ratios as the isolating switch of insulation arc-extinguishing medium in the mesohigh field.But SF
6Whether two physical indexs of the humidity of gas and density are within the rated range, are determining SF
6The insulation of gas and arc extinction performance whether effectively.But SF
6Primary cut-out is being made and in service because of 1, SF
6Contain certain moisture in the new gas; When 2, equipment installation, inflation, operation, tonifying Qi and maintenance, because of the careless omission in technology limitation and the technological process, at SF
6Gas is when external leakage, and because of the water partial pressure of extraneous water partial pressure far above gas in the air chamber, extraneous moisture can oppositely infiltrate in air chamber, causes SF6 gas water cut when density descends to rise, and the Introduced cases moisture of generation can be trapped in air chamber and the pipe valve.The moisture that exceeds standard can cause great harm to the operation of isolating switch.In the prior art, SF
6The measurement of gas water content is generally adopted the off-line type dew point hygrometer to carry out the scene in the cycle of regulation and is detected.This device volume is big, buying and operating cost height, and the treatment process complexity needs to have a power failure for a long time, could gather gas.Also there is same problem in other gas.
Summary of the invention
In order to solve the above-mentioned problems in the prior art, the utility model proposes a kind of new gas on-line monitoring device, concrete technical scheme is as follows:
A kind of gas on-line monitoring device comprises power module, gaseous state acquisition module, signal conversion module, signal processing module and input/output module, and described power module is that this is powered at the gas line supervising device; Input end, signal processing module that the input end of the output terminal connection signal conversion module of described gaseous state acquisition module, the output terminal of signal conversion module connect signal processing module also connect input/output module; The probe of described gaseous state acquisition module is arranged in the confined space, and this confined space is provided with the input and output mouth of tested gas.Also comprise the external device (ED) control circuit; Described external device (ED) control circuit is connected with described signal processing module.
As improvement, this device also comprises address scrambler, and this address scrambler is connected with the I/O end of signal processing module.
As further improvement, this device also comprises the cpu monitor device, and this cpu monitor device is connected with the I/O end of signal processing module.
Described gaseous state acquisition module comprises one or more in humidity sensor, pressure transducer or the temperature sensor.
Described signal conversion module comprises analog switch and A/D converter; The output terminal of described sensor connects analog switch and A/D converter successively, and the output terminal of A/D converter connects the input end of described signal processing module.
Described signal processing module is MCU.
Described input/output module comprises one or more in display interface circuit, serial communication interface circuit, ethernet interface circuit and the wireless interface circuit.
The probe plug-in mounting of described gaseous state acquisition module is fixed on being in the stair-stepping three-in-one joint of secondary of sealing, and described three-in-one joint connects by web member, constitutes the combination transmitter.
This device also comprises driving circuit.The output terminal of described external device (ED) control circuit connects the control end of driving circuit.This driving circuit comprises relay or amplifier.
This device solves the above-mentioned problems in the prior art, can be implemented in line monitoring gas-condition.
This device external device (ED) control circuit can be adjusted outside equipment running status according to the requirement of signal processing module, accomplishes the control while monitoring.
Sensor by changing different size and revise the software parameter that loads in the signal processing module can be realized the on-line monitoring to variety classes gas.
The employing of address scrambler can make this device be applied in the automated system.The employing of cpu monitor device makes automated system can monitor the operation of this device.
Described input/output module comprises the multiple interfaces circuit, this device can be had connect abundant and outside interactive device.
Multiple monitoring sensor spare is combined in one and makes up in the transmitter, adopts a cover observation circuit to handle, export, so this apparatus structure compactness, installation, easy to use, cost economy.
Description of drawings
Fig. 1 is the theory diagram of this device.
Fig. 2 is among the embodiment, and this device is applied to SF
6Theory diagram.
Fig. 3 is three-in-one joint design synoptic diagram.
Embodiment
The utility model is described in further detail below in conjunction with accompanying drawing and embodiment.
In this example, this device is the measurement that is applied to the correlation parameter of insulating gas SF6, and concrete technical scheme is as follows:
With reference to figure 2, a kind of SF that is applied to
6The gas on-line monitoring device, comprise power module, gaseous state acquisition module, signal conversion module, signal processing module and input/output module, described power module be this power at the gas line supervising device; Input end, signal processing module that the input end of the output terminal connection signal conversion module of described gaseous state acquisition module, the output terminal of signal conversion module connect signal processing module also connect input/output module; The probe of described gaseous state acquisition module is arranged in the confined space, and this confined space is provided with the input and output mouth of tested gas.Also comprise the external device (ED) control circuit; Described external device (ED) control circuit is connected with described signal processing module.This device also comprises address scrambler and cpu monitor device, and address scrambler is connected with the I/O end of signal processing module; The cpu monitor device is connected with the I/O end of signal processing module.
In this example, the gaseous state acquisition module comprises humidity sensor, pressure transducer and temperature sensor.As Fig. 3, the probe of three sensors plug-in mounting respectively is fixed on being in the stair-stepping three-in-one joint of secondary of sealing shown in Figure 2, and three-in-one joint 3-1 is connected with three-in-one sleeve 3-3 by web member 3-2, constitutes the combination transmitter.This combination transmitter integral installation is in described confined space, and the tested gas input and output mouth that is somebody's turn to do connects tested gas.
Described signal conversion module comprises analog switch and A/D converter; The output terminal of described sensor connects analog switch and A/D converter successively, and the output terminal of A/D converter connects the input end of described signal processing module.
Described signal processing module is MCU.Described input/output module comprises display interface circuit, serial communication interface circuit, ethernet interface circuit and wireless interface circuit.
This device also comprises driving circuit.The output terminal of described external device (ED) control circuit connects the control end of driving circuit.This driving circuit comprises relay or amplifier.
In this example, described humidity sensor, pressure transducer and temperature sensor be in the prior art from common device and circuit, be not further limited at this.Analog switch can adopt CD4051, and A/D converter can adopt TLC1549, and MCU can adopt 89C4051 type single-chip microcomputer.
It is the circuit of core or PLC etc. that described external device (ED) control circuit can adopt with MCU.
Described display interface circuit, serial communication interface circuit (as 485 interfaces), ethernet interface circuit and wireless interface circuit (meeting the IEEE802.11 preferred circuit) etc. are mature technology, are not further limited at this.
The outside SF of described external device (ED) control circuit control
6Gas removes the operation of malicious dehydrating unit.
In this example, power module is a Switching Power Supply, the alternating current 220V power supply change into this device operation direct current 5V ,-5V or 12V power supply.
Claims (10)
1. a gas on-line monitoring device comprises power module, gaseous state acquisition module, signal conversion module, signal processing module and input/output module, and described power module is this online gas monitoring apparatus power supply; Input end, signal processing module that the input end of the output terminal connection signal conversion module of described gaseous state acquisition module, the output terminal of signal conversion module connect signal processing module also connect input/output module; The probe of described gaseous state acquisition module is arranged in the confined space, and this confined space is provided with the input and output mouth of tested gas, it is characterized in that also comprising the external device (ED) control circuit; Described external device (ED) control circuit is connected with described signal processing module.
2. gas on-line monitoring device according to claim 1 is characterized in that also comprising address scrambler, and this address scrambler is connected with the I/O end of signal processing module.
3. gas on-line monitoring device according to claim 1 and 2 is characterized in that also comprising the cpu monitor device, and this cpu monitor device is connected with the I/O end of signal processing module.
4. gas on-line monitoring device according to claim 3 is characterized in that described gaseous state acquisition module comprises one or more in humidity sensor, pressure transducer or the temperature sensor.
5. gas on-line monitoring device according to claim 3 is characterized in that described signal conversion module comprises analog switch and A/D converter; The output terminal of described sensor connects analog switch and A/D converter successively, and the output terminal of A/D converter connects the input end of described signal processing module.
6. gas on-line monitoring device according to claim 3 is characterized in that described signal processing module is MCU.
7. gas on-line monitoring device according to claim 3 is characterized in that described input/output module comprises one or more in display interface circuit, serial communication interface circuit, ethernet interface circuit and the wireless interface circuit.
8. gas on-line monitoring device according to claim 3 is characterized in that also comprising driving circuit.The output terminal of described external device (ED) control circuit connects the control end of driving circuit.
9. gas on-line monitoring device according to claim 8 is characterized in that described driving circuit comprises relay or amplifier.
10. gas on-line monitoring device according to claim 4, the probe plug-in mounting that it is characterized in that described gaseous state acquisition module is fixed on being in the stair-stepping three-in-one joint of secondary of sealing, described three-in-one joint connects by web member, constitutes the combination transmitter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202310882U CN201477421U (en) | 2009-09-02 | 2009-09-02 | On-line gas monitoring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202310882U CN201477421U (en) | 2009-09-02 | 2009-09-02 | On-line gas monitoring device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201477421U true CN201477421U (en) | 2010-05-19 |
Family
ID=42413673
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009202310882U Expired - Fee Related CN201477421U (en) | 2009-09-02 | 2009-09-02 | On-line gas monitoring device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201477421U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106568892A (en) * | 2016-10-13 | 2017-04-19 | 武汉长江通信智联技术有限公司 | Multiple gas online detection system based on Internet, and method thereof |
-
2009
- 2009-09-02 CN CN2009202310882U patent/CN201477421U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106568892A (en) * | 2016-10-13 | 2017-04-19 | 武汉长江通信智联技术有限公司 | Multiple gas online detection system based on Internet, and method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100519 Termination date: 20170902 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |