CN201892428U - On-line detection device for gas in protective gas heat treatment furnace - Google Patents
On-line detection device for gas in protective gas heat treatment furnace Download PDFInfo
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- CN201892428U CN201892428U CN2010206377916U CN201020637791U CN201892428U CN 201892428 U CN201892428 U CN 201892428U CN 2010206377916 U CN2010206377916 U CN 2010206377916U CN 201020637791 U CN201020637791 U CN 201020637791U CN 201892428 U CN201892428 U CN 201892428U
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Abstract
The utility model discloses an on-line detection device for gas in a protective gas heat treatment furnace, which comprises sample dots, a gas analysis and control part, an alarm device, a nitrogen supplier, a hydrogen supplier and a flow controller; the sample dots are a first sample dot, a second sample dot, a third sample dot and a fourth sample dot, the first sample dot is positioned in the area of a preheating channel, the second sample dot is positioned in the area of a heating chamber, the third sample dot is positioned in a jet-cooling area, and the fourth sample dot is positioned in the area of a cooling channel; the gas analysis and control part comprises a hydrogen analyzer, an oxygen analyzer for oxygen content, a water analyzer for water content and a control unit, and the control unit acquires the analyzed data of the hydrogen analyzer, the oxygen analyzer and the water analyzer, and compares the data with preset values; and the nitrogen supplier and the hydrogen supplier are controlled by the control unit. The detection device has a plurality of sample dots to simultaneously detect and analyze a variety of elements on line, and takes a corresponding measure according to a corresponding analysis result to guarantee the high stability of protective gas in the furnace, consequently, the safety of production is enhanced, and the processing quality of workpieces is increased.
Description
Technical field
The utility model relates to a kind of protective gas heat treatment furnace gas on-line measuring device.
Background technology
The protective gas heat-treatment furnace is in operation and will notes the safety of gas circuit, circuit and water system, especially will prevent the air that bleeds, in order to avoid cause high temperature hydrogen, oxygen mixing spontaneous combustion explosion accident.In addition, furnace atmosphere may be contaminated at any time and have influence on the brightness of workpiece and increase air consumption.It is most important how protective gas in the stove (oxygen, water, compositions such as hydrogen) to be implemented reliable online detection, analysis, control.
Summary of the invention
Technical problem to be solved in the utility model provides a kind of on-line measuring device that is exclusively used in protective gas heat-treatment furnace furnace gas; it can carry out online detection, analysis and control to protective gas heat-treatment furnace composition of gases within, guarantees the highly stable of the interior protective gas of stove.
For solving above technical problem, the utility model is taked following technical scheme:
A kind of protective gas heat treatment furnace gas on-line measuring device, it comprises:
Sample tap, it comprises first sample tap in the preheating channel zone that is positioned at the protective gas heat-treatment furnace, second sample tap that is positioned at the oven area of protective gas heat-treatment furnace, the 3rd sample tap of jet flow cooling zone that is positioned at the protective gas heat-treatment furnace and the 4th sample tap that is positioned at the zone, cooling duct of protective gas heat-treatment furnace;
The gas analysis control part, it comprises the hydrogen analyzer that is used for detecting the gas hydrogen content, the oxygen analyser that is used for detecting the gas oxygen content, the water analyzer that is used for detecting the gas water content, control module, described control module is gathered the analysis data of described hydrogen analyzer, oxygen analyser and water analyzer, and these data and predefined value are compared;
Warning device, it is connected with described control module, and it sends corresponding prompt when oxygen or water content are higher and when hydrogen content is on the low side;
The nitrogen feedway, it comprises source nitrogen, linking to each other with source nitrogen is used for the nitrogen pipeline that confession nitrogen passes through, by the control of described control module and be arranged in magnetic valve on the described nitrogen pipeline, when oxygen content or water content surpass setting value in detecting furnace gas, described control module control magnetic valve is opened, and replenishes nitrogen by nitrogen pipeline in the protective gas heat-treatment furnace;
Hydrogen gas supplying apparatus, it comprises sources of hydrogen, link to each other with sources of hydrogen and to be used for the Hydrogen Line that hydrogen supply gas passes through, by the control of described control module and be arranged in magnetic valve on the described Hydrogen Line, when hydrogen content is lower than setting value in detecting stove, magnetic valve is opened, by Hydrogen Line hydrogen make-up in hydrogen furnace;
Volume control device, it is used for controlling the flow of pipeline gas.
According to the utility model, described first sample tap, second sample tap, the 3rd sample tap and the 4th sample tap are connected to comprehensive sample pipe by arm respectively, this comprehensive sample pipe all is connected with hydrogen analyzer, oxygen analyser and water analyzer, and this can realize by 3 triple valves are set.
Preferably, on described comprehensive sample pipe, be provided with condenser and filter.Described nitrogen pipeline all is connected with described first sample tap, second sample tap, the 3rd sample tap and the 4th sample tap.
Because the utilization of technique scheme, the utility model compared with prior art has following advantage:
The utility model checkout gear has a plurality of sampled points (comprising preheating channel, heating clamber, jet flow cooling zone and discharging cooling duct); simultaneously multielement (is comprised water; oxygen; hydrogen) carry out online detection; analyze; regular purges pipeline, and makes relative measures according to corresponding analysis result and guarantee the highly stable of protective gas in the stove, improves production security and pipe fitting crudy.
Description of drawings
Fig. 1 is an operation principle schematic diagram of the present utility model.
Fig. 2 is a side schematic diagram of the present utility model;
Wherein: 1, first sample tap; 2, second sample tap; 3, the 3rd sample tap; 4, the 4th sample tap; 5, nitrogen pipeline; 6, magnetic valve; 7, concentrate delivery pipe.
The specific embodiment
Below in conjunction with specific embodiment and accompanying drawing the utility model is further described, but the utility model is not limited thereto embodiment.
As illustrated in fig. 1 and 2; action principle according to the protective gas heat treatment furnace gas on-line measuring device of present embodiment is; first sample tap 1 from the preheating channel zone that is positioned at protective gas heat-treatment furnace stove; be positioned at second sample tap 2 of the oven area of protective gas heat-treatment furnace; the 4th sample tap 4 that is arranged in the 3rd sample tap 3 of jet flow cooling zone and is positioned at the zone, cooling duct of protective gas heat-treatment furnace is collected sample gas; after the mixing; filter through condenser cooling and filter, under the effect of aspiration pump, enter water analyzer (CI2000-DP) respectively; oxygen analyser (CI2000-DH) and hydrogen analyzer (CI2000-RQD) are analyzed.All can be transported to control module through the data after each Instrumental Analysis, control module is the PLC controller, and it compares data and a preset value of collecting, and makes respective reaction.In this example, the PLC controller is controlled warning device, nitrogen supply (NS) device and hydrogen feeding mechanism.Specific as follows:
When the PLC controller surpasses preset value at oxygen content or water content, send signal and give warning device, the correspondence indication alarm lamp of warning device is bright, simultaneously, the magnetic valve of PLC control nitrogen supply (NS) device is opened, and feeds a large amount of nitrogen by nitrogen supply (NS) device (liquid nitrogen) by each sample tap in hydrogen furnace, thereby reduce the content of oxygen in the gas rapidly, when not working to alarm lamp, the nitrogen supply (NS) device stops for nitrogen, and it is normal that the furnace gas composition recovers.
The PLC controller is at hydrogen content (furnace pressure) when being lower than preset value, send signal and give warning device, the correspondence indication alarm lamp of warning device is bright, simultaneously, the magnetic valve of PLC control hydrogen feeding mechanism is opened,, do not worked until alarm lamp by each sample tap hydrogen make-up in hydrogen furnace by hydrogen feeding mechanism (preparing hydrogen by ammonia decomposition), it is normal that furnace pressure recovers.
The sample gas of obtaining from each sample tap is after analyzing through each analytical instrument, from concentrating delivery pipe 7 dischargings.It will be understood by those skilled in the art that in the place of needs flowmeter can be set controls gas flow.
The utility model checkout gear has a plurality of sampled points (comprising preheating channel, heating clamber, jet flow cooling zone and discharging cooling duct), simultaneously multielement (is comprised water, oxygen; hydrogen) carry out online detection; analyze, can guarantee the highly stable of the interior protective gas of stove, guarantee to produce and carry out smoothly.
The foregoing description only is explanation technical conceive of the present utility model and characteristics, and its purpose is to allow the personage who is familiar with this technology can understand content of the present utility model and enforcement according to this, can not limit protection domain of the present utility model with this.All equivalences of doing according to the utility model spirit essence change or modify, and all should be encompassed within the protection domain of the present utility model.
Claims (5)
1. protective gas heat treatment furnace gas on-line measuring device, it is characterized in that: described checkout gear comprises:
Sample tap, it comprises first sample tap in the preheating channel zone that is positioned at described protective gas heat-treatment furnace, second sample tap that is positioned at the oven area of described protective gas heat-treatment furnace, the 3rd sample tap of jet flow cooling zone that is positioned at the protective gas heat-treatment furnace and the 4th sample tap that is positioned at the zone, cooling duct of protective gas heat-treatment furnace;
The gas analysis control part, it comprises the hydrogen analyzer that is used for detecting the gas hydrogen content, the oxygen analyser that is used for detecting the gas oxygen content, the water analyzer that is used for detecting the gas water content, control module, described control module is gathered the analysis data of described hydrogen analyzer, oxygen analyser and water analyzer, and these data and predefined value are compared;
Warning device, it is connected with described control module, and it sends corresponding prompt when oxygen or water content are higher and when hydrogen content is on the low side;
The nitrogen feedway, it comprises source nitrogen, linking to each other with source nitrogen is used for the nitrogen pipeline that confession nitrogen passes through, by the control of described control module and be arranged in magnetic valve on the described nitrogen pipeline, when oxygen content or water content surpass setting value in detecting furnace gas, described control module control magnetic valve is opened, and replenishes nitrogen by nitrogen pipeline in the protective gas heat-treatment furnace;
Hydrogen gas supplying apparatus, it comprises sources of hydrogen, link to each other with sources of hydrogen and to be used for the Hydrogen Line that hydrogen supply gas passes through, by the control of described control module and be arranged in magnetic valve on the described Hydrogen Line, when hydrogen content is lower than setting value in detecting stove, magnetic valve is opened, by Hydrogen Line hydrogen make-up in the protective gas heat-treatment furnace;
Volume control device, it is used for controlling the flow of pipeline gas.
2. protective gas heat treatment furnace gas on-line measuring device according to claim 1; it is characterized in that: described first sample tap, second sample tap, the 3rd sample tap and the 4th sample tap are connected to comprehensive sample pipe by arm respectively, and described comprehensive sample pipe all is connected with described hydrogen analyzer, oxygen analyser and water analyzer.
3. protective gas heat treatment furnace gas on-line measuring device according to claim 2 is characterized in that: be provided with condenser and filter on described comprehensive sample pipe.
4. protective gas heat treatment furnace gas on-line measuring device according to claim 2 is characterized in that: described nitrogen pipeline all is connected with described first sample tap, second sample tap, the 3rd sample tap and the 4th sample tap.
5. protective gas heat treatment furnace gas on-line measuring device according to claim 1, it is characterized in that: described sources of hydrogen is the preparing hydrogen by ammonia decomposition device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206377916U CN201892428U (en) | 2010-12-02 | 2010-12-02 | On-line detection device for gas in protective gas heat treatment furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206377916U CN201892428U (en) | 2010-12-02 | 2010-12-02 | On-line detection device for gas in protective gas heat treatment furnace |
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| Publication Number | Publication Date |
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| CN201892428U true CN201892428U (en) | 2011-07-06 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2010206377916U Expired - Lifetime CN201892428U (en) | 2010-12-02 | 2010-12-02 | On-line detection device for gas in protective gas heat treatment furnace |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102080932A (en) * | 2010-12-02 | 2011-06-01 | 苏州中门子科技有限公司 | Gas online detection device in protective gas heat treatment furnace |
| CN103952527A (en) * | 2014-05-14 | 2014-07-30 | 江苏舒茨测控设备有限公司 | System for detecting gases in continuous annealing furnace |
| CN108608095A (en) * | 2018-05-04 | 2018-10-02 | 唐山松下产业机器有限公司 | welding system and welding system control method |
-
2010
- 2010-12-02 CN CN2010206377916U patent/CN201892428U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102080932A (en) * | 2010-12-02 | 2011-06-01 | 苏州中门子科技有限公司 | Gas online detection device in protective gas heat treatment furnace |
| CN103952527A (en) * | 2014-05-14 | 2014-07-30 | 江苏舒茨测控设备有限公司 | System for detecting gases in continuous annealing furnace |
| CN108608095A (en) * | 2018-05-04 | 2018-10-02 | 唐山松下产业机器有限公司 | welding system and welding system control method |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20110706 |