CN102087236A - Hydrogen dew-point meter - Google Patents
Hydrogen dew-point meter Download PDFInfo
- Publication number
- CN102087236A CN102087236A CN2009101999820A CN200910199982A CN102087236A CN 102087236 A CN102087236 A CN 102087236A CN 2009101999820 A CN2009101999820 A CN 2009101999820A CN 200910199982 A CN200910199982 A CN 200910199982A CN 102087236 A CN102087236 A CN 102087236A
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- probe
- dew point
- hydrogen
- point hygrometer
- output channel
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Abstract
The invention relates to a hydrogen dew-point meter, which adopts a modular design. A modular assembly comprises an installation substrate, a dew-point meter body, an electronic signal processor and a probe, wherein the probe can be replaced with at least five types of probes: (1) the probe which is installed on the wall surface; (2) the probe which is used for a narrow space; (3) the probe which is used for a stressed space and a vacuum chamber; (4) the probe which is used for high-temperature environment; and (5) the probe which is used for stressed pipeline environment. The invention has the advantages that the meter has better flexibility for use, meanwhile, use and maintenance cost is reduced.
Description
Technical field
The present invention relates to a kind of dew point hygrometer, especially the dew point of hydrogen instrument.
Background technology
Carry out testing at dangerous situation, instrument safe, reliably very important.Especially in hydrogen environment, realize accurately and not have the dew point measurement of danger, very high requirement be arranged for measuring instrument itself.Explosion-proof and intrinsic safety is that two kinds of degrees of recognition using in flammable explosive gas of electronic instrument are the highest, and effective means require instrument when design, and electronic circuit wherein can become incendiary source in no instance.But realize the instrument of this type of purpose usually, its maintenance and cost used in everyday are higher, and can only measure at a certain specific environment, use to lack dirigibility.
Summary of the invention
Purpose of the present invention addresses the above problem exactly, by instrument is carried out modular design, has solved the cost problem of above-mentioned operation and maintenance, and can provide the combination that meets multiple demand for the user, easy to use and maintenance.For realizing this purpose, the invention provides a kind of dew point of hydrogen instrument, it is characterized in that adopt modular design, modular assembly comprises installation base plate, dew point hygrometer body, electronic signal process and probe, described probe has at least following five types can change:
A. be used for the probe that metope is installed;
B. the probe that uses of small space;
C. press the probe that uses in space and the vacuum chamber at band;
D. the probe that uses of hot environment;
E. the probe that uses of pipeline with pressure environment.
Preferably, the output of described dew point of hydrogen instrument comprises the lonworks output channel and safeguards with two kinds of RS232C serial ports outputs:
Described lonworks output channel, it connects XF78 or the TP78 mode of adopting;
Described maintenance is adopted the RJ45 joint with the output of RS232C serial ports.
Preferably, described lonworks output channel, its signal form adopts the intrinsic safety node to send 20mA to transmit to the mode of transmitter.
Preferably, described lonworks output channel, the intrinsic safety grade of its module adopts the CENELEC standard, and wherein safety index is Ui=24V, Ii=225mA, Pi=1.2W, Ci=OnF, Li=22uH.
Preferably, can be applicable to be up to the pressure environment of 20bar.
Preferably, the protector for sensor of employing is a kind of in stainless steel sintered filter, stainless steel filter, PPS grid band stainless (steel) wire filtrator and the PPS grid.
The invention has the advantages that,, make instrument have stronger dirigibility, when satisfying the safety standard requirement, reduced whole cost by modular component design.Can satisfy the multiple demand of user under different situations.Simplified operations such as its installation, correction, maintenance simultaneously, easy to use.
Description of drawings
Fig. 1 has showed structural drawing of the present invention.
Embodiment
Embodiment one
See also Fig. 1, Fig. 1 is a structural drawing of the present invention.This dew point of hydrogen instrument adopts the modular design mode, and its module mainly comprises these four parts of installation base plate, dew point hygrometer body, electronic signal process and probe.Wherein installation base plate is used for this dew point hygrometer is fixed in desired location, and the user only need be mounted to the instrument substrate required place during use, the instrument body is fixed on the substrate to get final product again, and needn't dismantles cable etc.Wherein meter body has partly comprised the lonworks output channel and has safeguarded with two kinds of output channels of RS232C serial ports output.When verification, only need the modular assembly of electronic signal process part is disassembled, it is carried out connecting after the verification again get final product, and needn't dismantle whole instrument.The invention provides at least five types probe simultaneously, the user can change dissimilar probes as required, to satisfy the demand that dew point is measured under the varying environment.These five kinds of probes are respectively and are used for the probe that metope is installed, and the probe that small space uses is pressed the probe that uses in space and the vacuum chamber, the probe that hot environment is used and the probe that uses at the pipeline with pressure environment at band.In addition, the protective device that adopts of probe sensor is a kind of in stainless steel sintered filter, stainless steel filter, PPS grid band stainless (steel) wire filtrator and the PPS grid.
A kind of dew point of hydrogen instrument provided by the invention, above embodiment are only in order to explanation, and unrestricted technical scheme of the present invention.Those of ordinary skill in the art is to be understood that: the present invention is made amendment or is equal to replacement, and do not break away from any modification or partial replacement of the spirit and scope of the present invention, all should be encompassed in the middle of the claim scope of the present invention.
Claims (6)
1. a dew point of hydrogen instrument is characterized in that, adopts modular design, and modular assembly comprises installation base plate, dew point hygrometer body, electronic signal process and probe, and described probe has at least following five types can change:
A. be used for the probe that metope is installed;
B. the probe that uses of small space;
C. press the probe that uses in space and the vacuum chamber at band;
D. the probe that uses of hot environment;
E. the probe that uses of pipeline with pressure environment.
2. the online dew point hygrometer of hydrogen as claimed in claim 1 is characterized in that, its output comprises the lonworks output channel and safeguards with two kinds of RS232C serial ports outputs:
Described lonworks output channel, it connects XF78 or the TP78 mode of adopting;
Described maintenance is adopted the RJ45 joint with the output of RS232C serial ports.
3. the online dew point hygrometer of hydrogen as claimed in claim 1 is characterized in that, described lonworks output channel, and its signal form adopts the intrinsic safety node to send 20mA to transmit to the mode of transmitter.
4. the online dew point hygrometer of hydrogen as claimed in claim 1 is characterized in that, described lonworks output channel, and its module intrinsic safety grade adopts the CENELEC standard, and wherein safety index is Ui=24V, Ii=225mA, Pi=1.2W, Ci=OnF, Li=22uH.
5. the online dew point hygrometer of hydrogen as claimed in claim 1 is characterized in that, can be applicable to be up to the pressure environment of 20bar.
6. the online dew point hygrometer of hydrogen as claimed in claim 1 is characterized in that, the protector for sensor of employing is a kind of in stainless steel sintered filter, stainless steel filter, PPS grid band stainless (steel) wire filtrator and the PPS grid.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009101999820A CN102087236A (en) | 2009-12-04 | 2009-12-04 | Hydrogen dew-point meter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009101999820A CN102087236A (en) | 2009-12-04 | 2009-12-04 | Hydrogen dew-point meter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102087236A true CN102087236A (en) | 2011-06-08 |
Family
ID=44099134
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009101999820A Pending CN102087236A (en) | 2009-12-04 | 2009-12-04 | Hydrogen dew-point meter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102087236A (en) |
-
2009
- 2009-12-04 CN CN2009101999820A patent/CN102087236A/en active Pending
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20110608 |