CN1322317C - Temperature and humidity measuring device for high temperature air - Google Patents
Temperature and humidity measuring device for high temperature air Download PDFInfo
- Publication number
- CN1322317C CN1322317C CNB2005100111683A CN200510011168A CN1322317C CN 1322317 C CN1322317 C CN 1322317C CN B2005100111683 A CNB2005100111683 A CN B2005100111683A CN 200510011168 A CN200510011168 A CN 200510011168A CN 1322317 C CN1322317 C CN 1322317C
- Authority
- CN
- China
- Prior art keywords
- air channel
- high temperature
- temperature
- temperature sensor
- air
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Images
Landscapes
- Air Conditioning Control Device (AREA)
Abstract
The present invention relates to a temperature and humidity measuring device for high temperature air, which relates to a measuring device in the field of air condition parameter measurement. The present invention is characterized in that a high temperature air channel, a low temperature air channel, a mixing chamber and an air mixing channel are arranged in the device; air quantity adjusting valves are arranged in the high temperature air channel and the low temperature air channel; a draught fan is arranged in the low temperature air channel or the air mixing channel; the inlet of the high temperature air channel is provided with a dry bulb temperature sensor; the low temperature air channel and the air mixing channel are respectively provided with a dry bulb temperature sensor and a wet bulb temperature sensor; measured temperature signals are processed by a microprocessor; the temperature and humidity measuring device uses a display screen to display measuring results, has data output and storing functions and is used in the technical field of temperature and humidity measurement of high temperature and low humidity environmental air. Compared with the prior art, the measuring device has the obvious advantages of high measuring precision and low cost.
Description
Technical field
The present invention relates to a kind of temperature and humidity measuring device for high temperature air, belong to the aerial temperature and humidity field of measuring technique.
Background technology
In technical fields such as drying, Industrial Stoves and boiler smoke analysis, often relate to the moisture measurement problem of high temperature air, and how to realize that the high precision of high temperature air humidity, the low-cost measurement are insoluble problems in the present air status parameter fields of measurement.
Technical scheme to the high temperature air moisture measurement in the prior art mainly contains following several: the one, measure the dew-point hygrometer of air humidity indirectly by the dewpoint temperature of measuring air, and mainly form by cooling device, dewfall face and thermometer.This apparatus structure complexity is measured the cost height, for guaranteeing the close dew temperature of minute surface, need accurately control simultaneously, seldom uses in practice.(Cheng Qifan, air humidity and measuring method thereof, Liaoning meteorology, 1996, (4): 36).The 2nd, according to the impedance type hygrometer of the measure of the change humidity of moisture sensor resistance value, this device measuring accuracy in high temperature, high humidity environment reaches the gauge head job insecurity inadequately, and is easily aging.As disclosing a kind of among the CN1357759A and the capacity humidometer CMOS process compatible; A kind of S is disclosed among the CN86 204690U
i-CMOS type Al
2O
3Humidity sensor is the humidity measuring apparatus of hygrometric element.The 3rd, measure the microwave moisture meter of air humidity by the degree of absorption of air microwave radiation, this instrument processing request strictness, the cost height generally is used for remote sensing survey, is not suitable for humidity and changes fast measurement occasion (Humidity Measurement Technology.
Http:// www.testo.de/US/lig/upload/mwmlus10345940547501.pdf)In above-mentioned each technical scheme, when under the high temperature measurement environment, implementing, the not enough or high problem of measurement cost of ubiquity moisture measurement precision.As the multi-functional humiture transmitter of the EE29/EE31 of Pride company, though after the special demarcation of process, the precision of its Relative Humidity Measuring can reach ± 1%RH, and this has been very high accuracy requirement for general measurement occasion.But when being applied to the high temperature measurement environment, dry-bulb temperature as tested air is 140 ℃, relative humidity is 7% o'clock, the water capacity of air is 206.99g/kga, the absolute error of using this its water capacity of instrument measurement can reach ± 35g/kga～± 40g/kga, relative error is about 15% ~ 20%, and so big measuring error is difficult to accept.During particularly the drying experiment under laboratory high temperature, big air quantity operating mode was measured, the relative humidity measurement precision of ± 1%RH may cause full of prunes experimental result.Therefore, measure occasion, need a kind of new measurement means and instrument urgently, measurand is carried out high-precision measurement for some special hot environment air humiditys.
Summary of the invention
Deficiency and defective at the prior art existence, purpose of the present invention and task provide a kind of temperature and humidity measuring device for high temperature air, at present existing measurement mechanism is measured the restriction of range and the not high problem of moisture measurement precision under hot environment to solve, make this device not be only applicable to the moisture measurement of high temperature air, also can be used for the moisture measurement of air under the normal temperature environment, have the characteristics that measuring method is simple, cost is low simultaneously.
Purpose of the present invention and task are to realize by the following technical solutions:
A kind of temperature and humidity measuring device for high temperature air, it is characterized in that: this measurement mechanism comprises high temperature air channel, cryogenic wind-tunnel, mixing chamber, mixes air channel and data microprocessing unit, described high temperature air channel and cryogenic wind-tunnel are connected to a side of mixing chamber in Y type mode, and described mixed air channel is connected the opposite side of wind mixed chamber; In cryogenic wind-tunnel or mixed air channel, induced draft fan is set, and the low temperature volume damper is set in cryogenic wind-tunnel, the high temperature volume damper is set in the high temperature air channel; In the high temperature air channel, temperature sensor is set, at cryogenic wind-tunnel dry-bulb temperature sensor and wet bulb temperature sensor are set respectively, in mixing the air channel, dry-bulb temperature sensor and wet bulb temperature sensor are set respectively, described each temperature sensor is linked to each other with described data microprocessing unit by temperature sensor wires.
Apparatus of the present invention are characterised in that: the induced draft fan in the described mixed air channel places described in this air channel and does, the downstream of wet bulb temperature sensor installation site.
Apparatus of the present invention are characterised in that: the wet bulb temperature sensor in described cryogenic wind-tunnel and the mixed air channel adopts the hydrocone type automatic water-replenishing device.
The present invention compared with prior art has the following advantages and the high-lighting effect: 1. apparatus of the present invention adopt the measurement of conventional temperature measuring instrument realization to tested high-temperature air temperature and humidity, have greatly reduced the cost of measurement mechanism.2. apparatus of the present invention only relate to the measurement of temperature, need not to measure the mixed wind ratio of Cryogenic air and high temperature air, and measuring method is simple, is easy to realize under the high temperature measurement environment, having the high advantage of measuring accuracy.What 3. apparatus of the present invention were measured is temperature signal, and the range of device only is subjected to the restriction of high temperature side temperature sensor measurement range, has widened the range ability of measurement mechanism.4. apparatus of the present invention can realize the measurement of tested other each state parameter of high temperature air.
Description of drawings
Fig. 1 is arranged at the structural representation of embodiment in the cryogenic wind-tunnel for induced draft fan provided by the invention.
Fig. 2 is the side view of Fig. 1.
Fig. 3 is the vertical view of Fig. 1.
Fig. 4 is arranged at the structural representation that mixes embodiment in the air channel for induced draft fan provided by the invention.
Fig. 5 represents data microprocessing unit structured flowchart.
The sequence number of each parts and title are as follows among the figure:
1. cabinet; 2. low temperature volume damper; 3. wire gauze; 4. induced draft fan; 5. low temperature side dry-bulb temperature sensor; 6. low temperature side wet bulb temperature sensor; 7. tank; 8. cryogenic wind-tunnel; 9. mixing chamber; 10. flange; 11. high temperature volume damper; 12. high temperature side dry-bulb temperature sensor; 13. high temperature air channel; 14. mix wind side dry-bulb temperature sensor; 15. mix wind side wet bulb temperature sensor; 16. mix the air channel; 17. temperature point connection terminal; 18. temperature sensor wires; 19. moisturizing container; 20. U trap; 21. data microprocessing unit; 22. COM port; 23. data communication line; 24. power lead.
Embodiment
Temperature and humidity measuring device for high temperature air provided by the invention, comprise high temperature air channel 13, cryogenic wind-tunnel 8, mixing chamber 9, mix air channel 16 and data microprocessing unit 21, described high temperature air channel and cryogenic wind-tunnel are connected to a side of mixing chamber in Y type mode, and described mixed air channel is connected the opposite side of wind mixed chamber; Induced draft fan 4 (referring to Fig. 1) is set or induced draft fan 4 (referring to Fig. 4) is set in mixed air channel 16 at described cryogenic wind-tunnel 8, and low temperature volume damper 2 is set in cryogenic wind-tunnel, high temperature volume damper 11 is set in high temperature air channel 13; High temperature side dry-bulb temperature sensor 12 is set in the high temperature air channel, at cryogenic wind-tunnel low temperature side dry-bulb temperature sensor 5 and low temperature side wet bulb temperature sensor 6 are set respectively, in mixing the air channel, be provided with respectively and mix wind side dry-bulb temperature sensor 14 and mixed wind side wet bulb temperature sensor 15, described each temperature sensor is linked to each other with described data microprocessing unit 21 by temperature sensor wires 18.
Be further described below in conjunction with the implementation process of accompanying drawing apparatus of the present invention.
Embodiment 1: induced draft fan is arranged at cryogenic wind-tunnel
Mode according to Fig. 1 is connected to a side of mixing chamber 9 with cryogenic wind-tunnel 8 and high temperature air channel 13 in Y type mode, and mixes the opposite side that air channel 16 is connected to mixing chamber 9.In the porch in high temperature air channel 13 high temperature volume damper 11 is set; Induced draft fan 4 and low temperature volume damper 2 are set in cryogenic wind-tunnel 8, and induced draft fan 4 can be installed on the downstream or the upstream side of low temperature volume damper 2.In the high temperature air channel, arrange dry-bulb temperature sensor 12, dry-bulb temperature sensor 5 and wet bulb temperature sensor 6 are set in cryogenic wind-tunnel, in mixing the air channel, arrange dry-bulb temperature sensor 14 and wet bulb temperature sensor 15 respectively, and each temperature sensor is connected with temperature point connection terminal 17 by temperature sensor wires 18, then described each parts that link to each other are fixed in the cabinet 1, the outlet in cryogenic wind-tunnel inlet and mixed air channel is provided with wire gauze 3 respectively.Measurement mechanism is connected with measurand by flange 10, on cabinet lateral surface top moisturizing container 19 is set, and is connected with tank 7 by U trap 20 and carries out automatic water supplement.Utilize data communication line 23 that temperature point connection terminal 17 is connected with data microprocessing unit 21, form a complete temperature and humidity measuring device for high temperature air.The structure of data microprocessing unit as shown in Figure 5, it is by power supply 24, data acquisition circuit, signal discharge circuit, A/D conversion circuit, microprocessor and display screen that links to each other with the output terminal of this microprocessor respectively and I/O circuit.Simultaneously can be according to user's needs, the COM port 22 by data microprocessing unit 21 is connected with computing machine, can realize the storage and the output print function of data.
Embodiment 2: induced draft fan is arranged at and mixes in the air channel
Mode according to Fig. 4 is connected to a side of mixing chamber 9 with cryogenic wind-tunnel 8 and high temperature air channel 13 in Y type mode, and mixes the opposite side that air channel 16 is connected to mixing chamber 9.In the porch in high temperature air channel 13 high temperature volume damper 11 is set, low temperature volume damper 2 is set in cryogenic wind-tunnel 8; In the high temperature air channel, arrange dry-bulb temperature sensor 12, in cryogenic wind-tunnel, be arranged at bulb temperature sensor 5 and wet bulb temperature sensor 6, in mixing the air channel, arrange dry-bulb temperature sensor 14 and wet bulb temperature sensor 15 respectively; Induced draft fan 4 is arranged at the downstream of mixing in the air channel 16 and placing mixed air channel dry-bulb temperature sensor 14 and wet bulb temperature sensor 15 installation sites.Described each temperature sensor is connected with temperature point connection terminal 17 by temperature sensor wires 18, then described each parts that link to each other is fixed in the cabinet 1, and the outlet in cryogenic wind-tunnel inlet and mixed air channel is provided with wire gauze 3 respectively.Measurement mechanism is connected with measurand by flange 10, on cabinet lateral surface top moisturizing container 19 is set, and is connected with tank 7 by U trap 20 and carries out automatic water supplement.Utilize data communication line 23 that temperature point connection terminal 17 is connected with data microprocessing unit 21, form a complete temperature and humidity measuring device for high temperature air.Simultaneously can be according to user's needs, the COM port 22 by data microprocessing unit 21 is connected with computing machine, can realize the storage and the output print function of data.
Claims (3)
1. temperature and humidity measuring device for high temperature air, it is characterized in that: this measurement mechanism comprises high temperature air channel (13), cryogenic wind-tunnel (8), mixing chamber (9), mixes air channel (16) and data microprocessing unit (21), described high temperature air channel and cryogenic wind-tunnel are connected to a side of mixing chamber in Y type mode, and described mixed air channel is connected the opposite side of mixing chamber; In described cryogenic wind-tunnel (8) or mixed air channel (16), induced draft fan (4) is set, and low temperature volume damper (2) is set in cryogenic wind-tunnel, high temperature volume damper (11) is set in the high temperature air channel; High temperature side dry-bulb temperature sensor (12) is set in the high temperature air channel, at cryogenic wind-tunnel low temperature side dry-bulb temperature sensor (5) and low temperature side wet bulb temperature sensor (6) are set respectively, in mixing the air channel, be provided with respectively and mix wind side dry-bulb temperature sensor (14) and mixed wind side wet bulb temperature sensor (15), described each temperature sensor is linked to each other with described microprocessing unit by temperature sensor wires.
2. according to the described temperature and humidity measuring device for high temperature air of claim 1, it is characterized in that: the induced draft fan in the described mixed air channel places the downstream of mixing wind side dry-bulb temperature sensor (14) and mixed wind side wet bulb temperature sensor (15) installation site described in this air channel.
3. according to claim 1 or 2 described temperature and humidity measuring device for high temperature air, it is characterized in that: the wet bulb temperature sensor in described cryogenic wind-tunnel (8) and mixed air channel (16) adopts the hydrocone type automatic water-replenishing device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100111683A CN1322317C (en) | 2005-01-14 | 2005-01-14 | Temperature and humidity measuring device for high temperature air |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100111683A CN1322317C (en) | 2005-01-14 | 2005-01-14 | Temperature and humidity measuring device for high temperature air |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1632482A CN1632482A (en) | 2005-06-29 |
| CN1322317C true CN1322317C (en) | 2007-06-20 |
Family
ID=34853113
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2005100111683A Expired - Fee Related CN1322317C (en) | 2005-01-14 | 2005-01-14 | Temperature and humidity measuring device for high temperature air |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1322317C (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101858876B (en) * | 2010-06-01 | 2012-03-21 | 东莞市升微机电设备科技有限公司 | Detecting system and humidity detecting method for detecting volatile organic compound |
| CN106546503A (en) * | 2016-10-19 | 2017-03-29 | 北京科技大学 | A kind of detection method of dry/adjustable Anti brushing Performance of wet atmosphere |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2039009U (en) * | 1988-06-28 | 1989-06-07 | 湖南省能源研究所 | Air-duct type baking device for mosquito-repellent incense capable of controlling temperature and humidity |
| JPH09203705A (en) * | 1996-01-29 | 1997-08-05 | Sanyo Electric Co Ltd | Environment tester |
| JPH11153494A (en) * | 1997-11-21 | 1999-06-08 | Sekisui House Ltd | Protecting box device for temperature and humidity measuring sensor |
| CN2352957Y (en) * | 1998-11-16 | 1999-12-08 | 李玉国 | Instrument for testing moisture content in smoke |
| CN2767977Y (en) * | 2005-01-14 | 2006-03-29 | 清华大学 | Device for measuring high temperature air humiture |
-
2005
- 2005-01-14 CN CNB2005100111683A patent/CN1322317C/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2039009U (en) * | 1988-06-28 | 1989-06-07 | 湖南省能源研究所 | Air-duct type baking device for mosquito-repellent incense capable of controlling temperature and humidity |
| JPH09203705A (en) * | 1996-01-29 | 1997-08-05 | Sanyo Electric Co Ltd | Environment tester |
| JPH11153494A (en) * | 1997-11-21 | 1999-06-08 | Sekisui House Ltd | Protecting box device for temperature and humidity measuring sensor |
| CN2352957Y (en) * | 1998-11-16 | 1999-12-08 | 李玉国 | Instrument for testing moisture content in smoke |
| CN2767977Y (en) * | 2005-01-14 | 2006-03-29 | 清华大学 | Device for measuring high temperature air humiture |
Non-Patent Citations (3)
| Title |
|---|
| 一种特制的空气流速、温度及湿度微机控制系统 田晓亮，王兆俊，章乾良，肖键，青岛大学学报，第13卷第1期 1998 * |
| 数字式湿度计的设计 梅一珉，刘国越，叶永伟，浙江工业大学学报，第31卷第4期 2003 * |
| 数字式湿度计的设计 梅一珉，刘国越，叶永伟，浙江工业大学学报，第31卷第4期 2003;一种特制的空气流速、温度及湿度微机控制系统 田晓亮，王兆俊，章乾良，肖键，青岛大学学报，第13卷第1期 1998 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1632482A (en) | 2005-06-29 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN206192402U (en) | Gaseous little water of SF6, density on -line monitoring system | |
| CN207601552U (en) | air quality integrated detecting device | |
| CN107677317A (en) | Flue dust gas sampling comprehensive detection system | |
| CN202853655U (en) | Flue gas monitoring system | |
| CN207717129U (en) | A kind of flue dust gas sampling comprehensive detection system | |
| CN203587140U (en) | Temperature-humidity transmitter in high humidity environment | |
| CN1322317C (en) | Temperature and humidity measuring device for high temperature air | |
| CN201436594U (en) | Electronic meteorlolgical station | |
| CN102778445B (en) | Intelligent analyzer and detection method for standard state dry basis | |
| CN2767977Y (en) | Device for measuring high temperature air humiture | |
| CN100561195C (en) | The non-disperse infrared spectrum determination method and the device that are suitable for wide environmental temperature range | |
| CN202256134U (en) | Infrared analysis meter | |
| CN204008028U (en) | A kind of Portable industrial boiler air heat exchanger air leakage coefficient measuring device | |
| CN207366229U (en) | Grain drying energy efficiency evaluation system | |
| CN110095514A (en) | A kind of moisture meter system convenient for data acquisition | |
| CN202599822U (en) | Gas detector | |
| CN107727147A (en) | A kind of gas sensing and UV optical detection integrated system | |
| CN109946125B (en) | Dry-wet ball method gas temperature and humidity sampling device | |
| CN209541790U (en) | A kind of pipeline thread installing type Temperature Humidity Sensor | |
| CN209513086U (en) | A kind of industry humiture instrument | |
| CN202083481U (en) | Dew-point temperature measuring device for solid waste incinerator flue gas acid medium | |
| CN202794032U (en) | Standard state dry basis intelligent analyzer | |
| CN106814213A (en) | A kind of vent cabinet and vent cabinet face wind measurement method and device | |
| CN204241406U (en) | A kind of SCM Based solution ph measuring instrument | |
| CN201993330U (en) | Device for measuring exhausting humidity of pollution source with dry and wet bulb method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |