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Low-steam-content gas humidity precise control device

A humidity control and precise control technology, applied in humidity control, non-electric variable control, control/regulation system, etc., can solve the problem of not controlling gases of different humidity, etc., to improve adaptability, ensure temperature, and improve control range. Effect

Active Publication Date: 2015-01-07
UNIV OF SCI & TECH BEIJING
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Problems solved by technology

[0003] The existing freeze-drying dehumidification technology is mainly used for material drying and gas dehumidification, which can make the gas reach a humidity within a certain dew point temperature, but it does not have the function of controlling the generation of gases with different humidity

Method used

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  • Low-steam-content gas humidity precise control device

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Embodiment Construction

[0028] specific implementation plan

[0029] figure 1 The inventive device shown includes: a stainless steel pipe (3), a control module, a humidity pre-stabilization module and a humidity control module;

[0030] The control module consists of a flow meter (1) and an automatic humidity control instrument (12); the humidity pre-stabilization module consists of a pre-humidity chamber (8), a sponge filling (10), a partition (9), and a water injection port (2) Composition: The humidity control module is composed of a primary humidity control room (6), a secondary humidity control room (4), and a water outlet (11).

[0031] Open the water injection port (2) before use, and inject deionized water into the pre-wet chamber (8) until the sponge filling (10) is wet. Turn on the power of the device, adjust the flow meter (1) to the required flow rate, and set the required gas humidity value. The pre-humidity chamber (8) reaches the degree of temperature adjustment in a relatively shor...

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Abstract

A low-steam-content gas humidity precise control device belongs to the field of experimental devices and comprises a flow meter, a humidity automatic control instrument, a humidity pre-stabilized module and a humidity control module. The humidity pre-stabilized module is composed of a heating sleeve, a pre-humidifying chamber, sponge fillers, a partition plate and a water injecting port. The humidity control module is composed of a primary humidity control chamber, a secondary humidity control chamber and a water discharging port. By combining technologies of heating of a resistor and temperature controlling and drying of a semi-conductor refrigeration plate, automation of humidity control of the low-water-content gas is achieved, saturated steam with controllable content can be generated, supply of water-containing gas with the humidity in a large range under a laboratory condition can be achieved, and a simple and convenient way for controlling water content in reaction gas is provided for researchers. The humidity range of the gas is controlled to be a low-water-content range, namely between 0.15 grams of water per cubic meter of gas and 20 grams of water per cubic meter of gas. The gas humidity precise control device is applicable to precise controlling of low-water-content of the gas.

Description

technical field [0001] The invention belongs to the field of experimental equipment and relates to a device for accurately controlling the humidity of gas with low water vapor content, provides a gas with different humidity by using controlled cooling, and provides researchers with a simple and convenient way to control the water content in the reaction gas. Background technique [0002] Existing gas humidity control devices usually generate water-containing gas by balancing the water stored in the resistance heating device with the gas. The humidity of the gas produced by this technology is relatively high, and the corresponding gas dew point temperature is between room temperature and 100 degrees Celsius. However, some experiments in the laboratory need to control the gas humidity within the dew point temperature range corresponding to room temperature. [0003] The existing freeze-drying dehumidification technology is mainly used for material drying and gas dehumidificat...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G05D22/02
Inventor 王丽君胡晓军虞自由陈志远陈宁于利安周国治李福燊
Owner UNIV OF SCI & TECH BEIJING
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