CN203502837U - Zirconia oxygen analyzer capable of automatically regulating standard gas flow - Google Patents
Zirconia oxygen analyzer capable of automatically regulating standard gas flow Download PDFInfo
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- CN203502837U CN203502837U CN201320471791.7U CN201320471791U CN203502837U CN 203502837 U CN203502837 U CN 203502837U CN 201320471791 U CN201320471791 U CN 201320471791U CN 203502837 U CN203502837 U CN 203502837U
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- instrument
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Abstract
The utility model relates to a zirconia oxygen analyzer capable of automatically regulating a standard gas flow. The zirconia oxygen analyzer is characterized in that a case is provided with a gas feed end and a standard gas discharge end; a mass and flow controller and an electromagnetic valve are arranged in the case; and the gas feed end, the electromagnetic valve, the mass and flow controller and the standard gas discharge end are connected in sequence by pipes. While the zirconia oxygen analyzer is in use, the mass and flow controller converts a flow signal into an electric signal by a capillary heat-transfer temperature difference calorimetric method, and a predetermined standard gas flow is converted into an electric signal by an instrument. The electric flow signal is amplified and read by the instrument, and the standard gas flow is displayed in real time. By comparing the flow signal with the predetermined flow signal, the standard gas flow is regulated to a predetermined value by a flow regulating valve. Besides, the instrument controls contacts of a relay to control the electromagnetic valve to switch a range gas and a zero gas, and controls the contacts of the relay to control a switch of the mass and flow controller, thereby achieving the automatic calibration of the instrument.
Description
Technical field
The utility model relates to the technical field of analysis meter, specifically a kind of Oxygen Measuring Instrument that can automatically regulate gas flow.
Background technology
At present, the burning efficiency of the equipment such as Oxygen Measuring Instrument widespread use boiler, kiln is controlled.During instrument calibration, need to pass into respectively range Standard Gases and nil norm gas, after being adjusted to 0.5-1.5SLM/min by needs from steel cylinder decompression output, calibrating gas can pass into instrument, because the gas of excessive flow can bring impact to sensor, even bring destructive consequence.Be generally to realize the adjusting to gas flow by manual shift glass rotameter, adopt above-mentioned manual shift method not only to waste time and energy, efficiency is lower, also has certain error simultaneously, cannot realize the automatic calibration of instrument.
Summary of the invention
The purpose of this utility model is to provide a kind of Oxygen Measuring Instrument of improved automatic adjusting gas flow, it can overcome in prior art by regulating manually to realize the control to gas flow, waste time and energy, cannot realize the some shortcomings of the automatic calibration of instrument.
To achieve these goals, the technical solution of the utility model is: a kind of Oxygen Measuring Instrument of automatic adjusting gas flow, it mainly comprises cabinet, with the panel board coordinating with cabinet, it is characterized in that: cabinet is provided with gas input end and calibrating gas output terminal, in cabinet, be provided with mass flow controller and solenoid valve, between described gas input end, solenoid valve, mass flow controller and calibrating gas output terminal, by pipeline, be connected successively.
During use, mass flow controller, solenoid valve are placed in cabinet as a gas circuit unit, between gas input end, solenoid valve, mass flow controller and calibrating gas output terminal, be connected successively by pipeline, solenoid valve and mass flow controller are controlled by the switch in instrument.Mass flow controller adopts kapillary heat transfer temperature difference calorimetry that flow signal is converted to electric signal, and instrument is also converted to electric signal by the gas flow of setting.Instrument is read the flow electric signal after amplification, shows in real time gas flow, and simultaneously this flow signal is compared with flow setting signal, driving flow control valve by gas flow regulation to setting value.Instrument is controlled solenoid valve switching range gas and zero gas by pilot relay contact simultaneously, also can by pilot relay contact, control the switch of mass flow controller, realizes the automatic calibration of instrument.
Accompanying drawing explanation
Fig. 1 is the structural representation of the utility model one embodiment.
Embodiment
Below in conjunction with drawings and Examples, the utility model will be further described.
Label in accompanying drawing is expressed as follows: 1 cabinet, 2 mass flow controllers, 3 span gas input ports, 4 zero gas input ports, 5 span gas solenoid valves, 6 zero gas solenoid valves, 7 calibrating gas output terminals, 8 flow signal indicator gauges, 9 setting signal indicator gauges, 10 mass flow controller switches, 11 span gas electromagnetic valve switch, 12 zero gas electromagnetic valve switch.
The Oxygen Measuring Instrument of a kind of automatic adjusting gas flow described in the utility model, it mainly comprises cabinet, with the panel board coordinating with cabinet, its difference with the prior art is: cabinet is provided with gas input end and calibrating gas output terminal, in cabinet, be provided with mass flow controller and solenoid valve, between described gas input end, solenoid valve, mass flow controller and calibrating gas output terminal, by pipeline, be connected successively.In instrument, be provided with flow signal indicator gauge, setting signal indicator gauge and mass flow controller switch, mass flow controller is provided with two signal input parts and a signal output part, flow signal indicator gauge is connected with the signal output part of mass flow controller, and setting signal indicator gauge is connected with two signal input parts of mass flow controller respectively with mass flow controller switch.
Gas input end is provided with two input ports, respectively span gas input port and zero gas input port, solenoid valve has two, be respectively span gas solenoid valve and zero gas solenoid valve, span gas input port is connected with mass flow controller by range gas solenoid valve, and zero gas input port is connected with mass flow controller by zero gas solenoid valve.In instrument, be provided with span gas electromagnetic valve switch, described span gas electromagnetic valve switch is connected with span gas solenoid valve; In instrument, be provided with zero gas electromagnetic valve switch, described zero gas electromagnetic valve switch is connected with zero gas solenoid valve.The utlity model has volume feature little, easy for installation, the switch of mass flow controller is controlled in one way switch amount output of instrument, range gas solenoid valve and zero gas solenoid valve are controlled respectively in the output of double switch amount in addition, to realize the switching to span gas and zero gas.The voltage signal of input flow rate reads for instrument, and the voltage signal of flow is set in output simultaneously.Corresponding correction program is set in instrument.
In enforcement, mass flow controller, solenoid valve are placed in cabinet as a gas circuit unit, between gas input end, solenoid valve, mass flow controller and calibrating gas output terminal, be connected successively by pipeline, solenoid valve and mass flow controller are controlled by the switch in instrument.Mass flow controller adopts kapillary heat transfer temperature difference calorimetry that flow signal is converted to electric signal, and instrument is also converted to electric signal by the gas flow of setting.Instrument is read the flow electric signal after amplification, shows in real time gas flow, and simultaneously this flow signal is compared with flow setting signal, driving flow control valve by gas flow regulation to setting value.Instrument is controlled solenoid valve switching range gas and zero gas by pilot relay contact simultaneously, also can by pilot relay contact, control the switch of mass flow controller, realizes the automatic calibration of instrument.
Above content is in conjunction with concrete preferred implementation further detailed description of the utility model, can not assert that the concrete enforcement of the utility model is confined to above-mentioned these explanations.For the utility model person of an ordinary skill in the technical field, without departing from the concept of the premise utility, can also make some simple deduction or replace, all should be considered as belonging to protection domain of the present utility model.
Claims (4)
1. an Oxygen Measuring Instrument that automatically regulates gas flow, it mainly comprises cabinet, with the panel board coordinating with cabinet, it is characterized in that: cabinet is provided with gas input end and calibrating gas output terminal, in cabinet, be provided with mass flow controller and solenoid valve, between described gas input end, solenoid valve, mass flow controller and calibrating gas output terminal, by pipeline, be connected successively.
2. the Oxygen Measuring Instrument of a kind of automatic adjusting gas flow according to claim 1, it is characterized in that: gas input end is provided with two input ports, respectively span gas input port and zero gas input port, solenoid valve has two, be respectively span gas solenoid valve and zero gas solenoid valve, span gas input port is connected with mass flow controller by range gas solenoid valve, and zero gas input port is connected with mass flow controller by zero gas solenoid valve.
3. the Oxygen Measuring Instrument of a kind of automatic adjusting gas flow according to claim 2, is characterized in that: in instrument, be provided with span gas electromagnetic valve switch, described span gas electromagnetic valve switch is connected with span gas solenoid valve; In instrument, be provided with zero gas electromagnetic valve switch, described zero gas electromagnetic valve switch is connected with zero gas solenoid valve.
4. the Oxygen Measuring Instrument of a kind of automatic adjusting gas flow according to claim 1, it is characterized in that: in instrument, be provided with flow signal indicator gauge, setting signal indicator gauge and mass flow controller switch, mass flow controller is provided with two signal input parts and a signal output part, flow signal indicator gauge is connected with the signal output part of mass flow controller, and setting signal indicator gauge is connected with two signal input parts of mass flow controller respectively with mass flow controller switch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320471791.7U CN203502837U (en) | 2013-08-05 | 2013-08-05 | Zirconia oxygen analyzer capable of automatically regulating standard gas flow |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320471791.7U CN203502837U (en) | 2013-08-05 | 2013-08-05 | Zirconia oxygen analyzer capable of automatically regulating standard gas flow |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203502837U true CN203502837U (en) | 2014-03-26 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320471791.7U Expired - Fee Related CN203502837U (en) | 2013-08-05 | 2013-08-05 | Zirconia oxygen analyzer capable of automatically regulating standard gas flow |
Country Status (1)
| Country | Link |
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| CN (1) | CN203502837U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114813031A (en) * | 2022-07-01 | 2022-07-29 | 中国航空工业集团公司沈阳空气动力研究所 | Wide-range high-precision pressure measuring device and method for wind tunnel test |
-
2013
- 2013-08-05 CN CN201320471791.7U patent/CN203502837U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114813031A (en) * | 2022-07-01 | 2022-07-29 | 中国航空工业集团公司沈阳空气动力研究所 | Wide-range high-precision pressure measuring device and method for wind tunnel test |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140326 Termination date: 20140805 |
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| EXPY | Termination of patent right or utility model |