CN204575583U - A kind of test decarburization annealing furnace furnace atmosphere dew-point detecting device - Google Patents
A kind of test decarburization annealing furnace furnace atmosphere dew-point detecting device Download PDFInfo
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- CN204575583U CN204575583U CN201520336787.9U CN201520336787U CN204575583U CN 204575583 U CN204575583 U CN 204575583U CN 201520336787 U CN201520336787 U CN 201520336787U CN 204575583 U CN204575583 U CN 204575583U
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Abstract
The utility model discloses a kind of test decarburization annealing furnace furnace atmosphere dew-point detecting device, comprise trial furnace, sensing chamber, and connect the stopple coupon of described trial furnace and sensing chamber, described stopple coupon is provided with sampling pump, sampling hand valve and sampling solenoid valve, described sampling solenoid valve is connected with controller, in described sensing chamber, resistance-capacitance type dew point instrument is installed, this device also comprises the scavenging duct and delivery pipe that are connected with described sensing chamber respectively, described scavenging duct is provided with and purges hand valve and purge solenoid valve, described delivery pipe is provided with discharge solenoid valve, described purge solenoid valve is connected with controller respectively with discharge solenoid valve, the end of described delivery pipe is provided with lighter.The utility model can improve the serviceable life of resistance-capacitance type dew point instrument, and can also ensure the accuracy of measurement data.
Description
Technical field
The utility model belongs to band or wire rod processes stove technical field continuously, is specifically related to a kind of test decarburization annealing furnace furnace atmosphere dew-point detecting device.
Background technology
At present in the decarburization test carrying out electrical sheet, need to carry out humidification to by hydrogen, nitrogen mixture atmosphere, in stove, play oxidation by water vapor, react with the carbon in test steel, realize decarbonization.Decarburization effect with have much relations by atmosphere humidification situation, at present carry out estimation control decarburization effect often through the water temperature controlled in humidifier in test, means are simple and be unfavorable for test data analyzer.Usual employing dew point hygrometer carries out dew point detection, to determine furnace atmosphere dew point situation.Dew point hygrometer has portable Cold Mirrors method dew point hygrometer and resistance-capacitance type dew point instrument.
Cold Mirrors method dew point hygrometer is by reflexing to minute surface by light source, then photodetector measurement of reflectivity is used, optical principle can be relied on to infer dew point, dew on minute surface can cause light source generation scattering, dew point controls environment in the requirement that to be remained on exactly by mirror temperature and maintain minute surface cut-layer, the platinum-resistance thermometer being embedded in minute surface can measure cold-boundary temperature, by revealing for maintaining balance, the feedback control circuit of frost layer can automatic tracing dew point, the change of frost point, accurately dew point can be measured by Cold Mirrors method, but, the dew point hygrometer price general charged of this Cold Mirrors method is higher, it is 20 times of resistance-capacitance type dew point instrument, be unsuitable for for cost consideration and promote the use of on a large scale.
Resistance-capacitance type dew point instrument is by ultra-thin aluminium oxide capacitance principle, when tested gas flows through sensor surface, capacitance between sensor internal aluminium core and oxide layer surface golden membranous layer changes with the water vapour content change in oxidation micropore, can be calculated humidity and the dew point value of tested gas by the capacitance recorded.Common resistance-capacitance type dew point instrument price is lower, therefore, and common employing resistance-capacitance type dew point instrument in various trial furnace.
But, in various test, dew point detection is carried out according to resistance-capacitance type dew point instrument, because the high dew point high humility atmosphere time is longer in stove, and do not need to realize on-line continuous measurement detection dew point, this makes resistance-capacitance type dew point instrument under the environment of high dew point high humility, fairly occur drift for a long time, cause dew point DATA REASONING inaccurate, the life cycle life-span is short.
Utility model content
The purpose of this utility model is to provide a kind of test decarburization annealing furnace furnace atmosphere dew-point detecting device, and it can improve the serviceable life of resistance-capacitance type dew point instrument, and can also ensure the accuracy of measurement data.
The utility model solves the technical scheme that its technical matters adopts:
A kind of test decarburization annealing furnace furnace atmosphere dew-point detecting device is provided, this device comprises trial furnace, sensing chamber, and connect the stopple coupon of described trial furnace and sensing chamber, described stopple coupon is provided with sampling pump, sampling hand valve and sampling solenoid valve, described sampling solenoid valve is connected with controller, in described sensing chamber, resistance-capacitance type dew point instrument is installed, this device also comprises the scavenging duct and delivery pipe that are connected with described sensing chamber respectively, described scavenging duct is provided with and purges hand valve and purge solenoid valve, described delivery pipe is provided with discharge solenoid valve, described purge solenoid valve is connected with controller respectively with discharge solenoid valve, the end of described delivery pipe is provided with lighter.
The utility model, there is following beneficial effect: this device can utilize cheap resistance-capacitance type dew point instrument to carry out the detection of batch (-type) dew point to test decarburization annealing furnace, not only can improve the serviceable life of resistance-capacitance type dew point instrument under high dew point high humidity environment, and the accuracy of measurement data can be ensured, the utility model makes simple, easy for installation, with low cost, can promote the use of.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the utility model is described in further detail, in accompanying drawing:
Fig. 1 is the structural representation of the utility model embodiment.
In figure: 1-trial furnace; 2-stopple coupon; 3-samples hand valve; 4-sampling pump; 5-samples solenoid valve; 6-sensing chamber; 7-resistance-capacitance type dew point instrument; 8-scavenging duct; 9-purges hand valve; 10-purge solenoid valve; 11-discharge solenoid valve; 12-delivery pipe; 13-lighter.
Embodiment
In order to make the purpose of this utility model, technical scheme and advantage clearly understand, below in conjunction with drawings and Examples, the utility model is further elaborated.Should be appreciated that specific embodiment described herein only in order to explain the utility model, and be not used in restriction the utility model.
In preferred embodiment of the present utility model, as shown in Figure 1, a kind of test decarburization annealing furnace furnace atmosphere dew-point detecting device, this device comprises trial furnace 1, sensing chamber 6, and the stopple coupon 2 of joint test stove 1 and sensing chamber 6, stopple coupon 2 is provided with sampling pump 4, sampling hand valve 3 and sampling solenoid valve 5, sampling solenoid valve 5 is connected with controller, resistance-capacitance type dew point instrument 7 is installed in sensing chamber 6, this device also comprises the scavenging duct 8 and delivery pipe 12 that are connected with sensing chamber 6 respectively, scavenging duct 8 is provided with and purges hand valve 9 and purge solenoid valve 10, delivery pipe 12 is provided with discharge solenoid valve 11, purge solenoid valve 10 is connected with controller respectively with discharge solenoid valve 11, the end of delivery pipe 12 is provided with lighter 13.
As shown in Figure 1, the course of work of the present utility model is:
1, a stopple coupon 2 is drawn from trial furnace 1, sample time is controlled by sampling hand valve 3, sampling solenoid valve 5, extracting furnace atmosphere by sampling pump 4 enters in sensing chamber 6, in sensing chamber 6, a resistance-capacitance type dew point instrument is installed, dew point measurement is carried out to the furnace atmosphere taked, discharge tail gas by tail gas discharging pipe 12, light exhaust combustion by lighter 13;
2, after having detected furnace atmosphere dew point, close sampling pump, sampling solenoid valve and sampling hand valve, open and purge hand valve, purge solenoid valve, think in scavenging duct, to pass into dry atmosphere, purge the furnace atmosphere in displacement sensing chamber, allow resistance-capacitance type dew point instrument remain in the environment of dew point drying at the bottom of, guarantee that drift does not appear in resistance-capacitance type dew point instrument, ensure data accuracy.
In replacement process, atmosphere scurries into the atmosphere affected in stove, in process of the test, displacement gas atmosphere can select the atmosphere the same with furnace atmosphere, pass through humidifier after hydrogen, nitrogen mixing before, tap one tunnel is as purge gas, due to may hydrogen be contained in atmosphere, open discharge solenoid valve, initial igniter is ignition tail gas in delivery pipe.
The utility model realizes the on off state of each solenoid valve by PLC, and control dew point hygrometer can Timing measurement furnace atmosphere situation, the dew point measurement in process of the test in step stove can be realized.
Should be understood that, for those of ordinary skills, can be improved according to the above description or convert, and all these improve and convert the protection domain that all should belong to the utility model claims.
Claims (1)
1. a test decarburization annealing furnace furnace atmosphere dew-point detecting device, this device comprises trial furnace, sensing chamber, and connect the stopple coupon of described trial furnace and sensing chamber, described stopple coupon is provided with sampling pump, sampling hand valve and sampling solenoid valve, described sampling solenoid valve is connected with controller, in described sensing chamber, resistance-capacitance type dew point instrument is installed, it is characterized in that, this device also comprises the scavenging duct and delivery pipe that are connected with described sensing chamber respectively, described scavenging duct is provided with and purges hand valve and purge solenoid valve, described delivery pipe is provided with discharge solenoid valve, described purge solenoid valve is connected with controller respectively with discharge solenoid valve, the end of described delivery pipe is provided with lighter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520336787.9U CN204575583U (en) | 2015-05-22 | 2015-05-22 | A kind of test decarburization annealing furnace furnace atmosphere dew-point detecting device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201520336787.9U CN204575583U (en) | 2015-05-22 | 2015-05-22 | A kind of test decarburization annealing furnace furnace atmosphere dew-point detecting device |
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| CN204575583U true CN204575583U (en) | 2015-08-19 |
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| CN201520336787.9U Expired - Fee Related CN204575583U (en) | 2015-05-22 | 2015-05-22 | A kind of test decarburization annealing furnace furnace atmosphere dew-point detecting device |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112098461A (en) * | 2020-09-24 | 2020-12-18 | 上海轻叶能源股份有限公司 | Flue gas introducing method online water dew point acid dew point measuring device |
| CN112546820A (en) * | 2019-11-13 | 2021-03-26 | 无锡联合超滤净化设备科技有限公司 | Unpowered zero-gas-consumption compression heat drying device and method for regeneration system |
| CN113295480A (en) * | 2021-04-30 | 2021-08-24 | 马鞍山钢铁股份有限公司 | Dew point detection sampling device and operation method thereof |
| CN114414627A (en) * | 2022-03-28 | 2022-04-29 | 北京机电研究所有限公司 | Dew point inspection system for large heating furnace |
-
2015
- 2015-05-22 CN CN201520336787.9U patent/CN204575583U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112546820A (en) * | 2019-11-13 | 2021-03-26 | 无锡联合超滤净化设备科技有限公司 | Unpowered zero-gas-consumption compression heat drying device and method for regeneration system |
| CN112098461A (en) * | 2020-09-24 | 2020-12-18 | 上海轻叶能源股份有限公司 | Flue gas introducing method online water dew point acid dew point measuring device |
| CN112098461B (en) * | 2020-09-24 | 2021-07-06 | 上海轻叶能源股份有限公司 | Flue gas introducing method online water dew point acid dew point measuring device |
| CN113295480A (en) * | 2021-04-30 | 2021-08-24 | 马鞍山钢铁股份有限公司 | Dew point detection sampling device and operation method thereof |
| CN114414627A (en) * | 2022-03-28 | 2022-04-29 | 北京机电研究所有限公司 | Dew point inspection system for large heating furnace |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20170717 Address after: 430083, Gate No. 2, Qingshan District, Hubei, Wuhan Patentee after: Wuhan iron and Steel Company Limited Address before: 430080 Wuhan, Hubei Friendship Road, No. 999, Wuchang Patentee before: Wuhan Iron & Steel (Group) Corp. |
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| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150819 Termination date: 20190522 |