SU648929A1 - Method of producing steam-air mixture with predetermined humidity - Google Patents
Method of producing steam-air mixture with predetermined humidityInfo
- Publication number
- SU648929A1 SU648929A1 SU762429640A SU2429640A SU648929A1 SU 648929 A1 SU648929 A1 SU 648929A1 SU 762429640 A SU762429640 A SU 762429640A SU 2429640 A SU2429640 A SU 2429640A SU 648929 A1 SU648929 A1 SU 648929A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- chamber
- air mixture
- mirror
- predetermined humidity
- producing steam
- Prior art date
Links
- 238000000034 method Methods 0.000 title description 8
- 239000000203 mixture Substances 0.000 title description 4
- 238000005259 measurement Methods 0.000 claims 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 8
- 239000002184 metal Substances 0.000 description 3
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000004907 flux Effects 0.000 description 1
- 238000000691 measurement method Methods 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 239000012780 transparent material Substances 0.000 description 1
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A90/00—Technologies having an indirect contribution to adaptation to climate change
- Y02A90/10—Information and communication technologies [ICT] supporting adaptation to climate change, e.g. for weather forecasting or climate simulation
Landscapes
- Investigating Or Analyzing Materials Using Thermal Means (AREA)
Description
(54) СПОСОБ ПОЛУЧЕНИЯ ПАРОВОЗДУШНОЙ СМЕСИ С ЗАДАННОЙ ВЛАЖНОСТЬЮ(54) METHOD FOR OBTAINING A STEAM-AIR MIXTURE WITH GIVEN MOISTURE
Изобретение относитс к измерительной технике, а именно, к способам градуировки и проверки влагомеров .The invention relates to a measurement technique, namely, to methods for calibrating and testing moisture meters.
Из.вестны способы, основанные на принципе динамического равновеси вод ного пара над поверхностью воды (льда) и позвол ющие.в замкнутом термостатируемом объеме, содержащем воду (лед), создавать посто нные зна чени влажности, близкие к 100% l . Однако известные способы недостаточно точны, особенно в области отрицательных температур.Known are the methods based on the principle of dynamic equilibrium of water vapor above the surface of water (ice) and allowing in a closed thermostatically controlled volume containing water (ice) to create constant humidity values close to 100% l. However, the known methods are not accurate enough, especially in the field of negative temperatures.
Ближайшим техническим решением к изобретению вл етс способ получени паровоздушной смеси с заданной влажностью, заключающийс в увлажнении рабочей камеры порцией воды 2 The closest technical solution to the invention is a method of obtaining a vapor-air mixture with a predetermined humidity, which consists in humidifying the working chamber with a portion of water 2
Однако условие полного насыщени воздуха в камере вод ным паром не может строго выполнено, так как воздух Кс1меры нагрева.етс от работающего вентил тора.However, the condition of complete saturation of the air in the chamber with water vapor cannot be strictly fulfilled, since the air Xc1 is heated from the working fan.
При наличии потока тепла от воздуха в стенках камеры и неодинаковой их теплопроводности внутренние поверхности стенок камеры,конденсат и воздух в камере имеют различные температуры , вследствие чего возникают погрешности .In the presence of heat flux from the air in the chamber walls and their unequal thermal conductivity, the inner surfaces of the chamber walls, condensate and air in the chamber have different temperatures, as a result of which errors occur.
Целью изобретени вл етс повышение точности путем устранени погрешности , возникающей из-за несоответстви температуры воздуха температуре конденсата на стенках камеры.The aim of the invention is to improve the accuracy by eliminating the error caused by the inconsistency of air temperature and the condensate temperature on the walls of the chamber.
Это достигаетс тем, что внутри камеры на стенку устанавливают полированную металлическую пластинку, часть которой находитс в воздухе, и на ее поверхности создают конденсат , после стабилизации положени которого измер ют температуру границы конденсата.This is achieved by installing a polished metal plate inside the chamber, a part of which is in the air, and condensation is created on its surface, after stabilization of which the temperature of the condensate boundary is measured.
На чертеже изображена схема устройства , реализующего предлагаемый способ.The drawing shows a diagram of the device that implements the proposed method.
Устройство имеет металлическую камеру 1, к стенке которой прикреплен радиатор 2, на внутренней поверхности этой же стенки установлена металлическа теплопроводна полированна пластина 3, изогнута посередине под углом. Один конец пластины имеет тепловой контакт со стенкой, а второй выполн ет роль зеркальца и находитс в воздухе. На поверхности зеркальца имеетс шкала с ценой делени 1 мм. В камере расположены вентил тор 4j электрический аспирационный психрометр 5 и увлажнитель б. На зеркальце укреплен спай 7 дифферециальной термопары, второй спай 8 которой прикреплен к резервуару термометра аспирационного психрометра. На зеркальце укреплены также два спа 9 и 10 дифференциальной термопары. Все спаи термопар укреплены на тыльн части зеркальца в углублени х, места расположени которых отмечены метками .. Дл наблюдени за показани ми термометра, аспирационного психрометра и расположением конденсата в камере генератора часть стенки выполнена из прозрачного материала.The device has a metal chamber 1, to the wall of which a radiator 2 is attached, on the inner surface of the same wall a metal heat-conducting polished plate 3 is installed, bent in the middle at an angle. One end of the plate has thermal contact with the wall, and the other serves as a mirror and is in the air. On the surface of the mirror there is a scale with a division value of 1 mm. A fan 4j electric aspiration psychrometer 5 and humidifier b are located in the chamber. On the mirror there is a junction 7 of the differential thermocouple, the second junction 8 of which is attached to the reservoir of the aspiration psychrometer thermometer. On the mirror there are also two spas 9 and 10 differential thermocouples. All thermocouple junctions are mounted on the rear part of the mirror in the recesses, the locations of which are marked with marks. To observe the readings of the thermometer, aspiration psychrometer and the location of the condensate in the generator chamber, a part of the wall is made of transparent material.
Сущность способа заключаетс в следующем.The essence of the method is as follows.
На внутренних стенках камеры 1 и на зеркальце 3 с помощью увлажнител б создаетс конденсат, вентил тором 4 осуществл етс непрерывное перемешивание воздуха в камере. Затем камера охлаждаетс и термостатируетс . Измерением температуры поверхности зеркальца на границе конденсата определ етс точка росы (льда). Condensate is created on the inner walls of chamber 1 and on the mirror 3 with the help of a humidifier; fan 4 is used to continuously mix the air in the chamber. The chamber is then cooled and thermostatically controlled. By measuring the surface temperature of the mirror at the condensate boundary, a dew point (ice) is determined.
При измерении температуры зеркальца на границе расположени конденсата сначала определ етс температура центра зеркальца, как сумма показаний температур дифференциальных термопар 7 и 8 и рассто ни границы конденсата от центра зеркальца, измеренное по шкале. С помощью двух дифференциальных термопар и термометра аспирационного психрометра можно определ ть температуру конденсата на границе в любой точке ее расположени вдоль рабочей поверхности зеркальца с высокой точностью.When measuring the temperature of the mirror at the boundary of the condensate, the temperature of the center of the mirror is first determined as the sum of the readings of the temperatures of the differential thermocouples 7 and 8 and the distance of the boundary of the condensate from the center of the mirror, measured on a scale. Using two differential thermocouples and an aspiration psychrometer thermometer, it is possible to determine the condensate temperature at the boundary at any point of its location along the working surface of the mirror with high accuracy.
Claims (2)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU762429640A SU648929A1 (en) | 1976-12-09 | 1976-12-09 | Method of producing steam-air mixture with predetermined humidity |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU762429640A SU648929A1 (en) | 1976-12-09 | 1976-12-09 | Method of producing steam-air mixture with predetermined humidity |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| SU648929A1 true SU648929A1 (en) | 1979-02-25 |
Family
ID=20686501
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| SU762429640A SU648929A1 (en) | 1976-12-09 | 1976-12-09 | Method of producing steam-air mixture with predetermined humidity |
Country Status (1)
| Country | Link |
|---|---|
| SU (1) | SU648929A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5452600A (en) * | 1993-09-29 | 1995-09-26 | Lockheed Idaho Technologies Company | Calibrated vapor generator source |
-
1976
- 1976-12-09 SU SU762429640A patent/SU648929A1/en active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5452600A (en) * | 1993-09-29 | 1995-09-26 | Lockheed Idaho Technologies Company | Calibrated vapor generator source |
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