Sampling system water level control device and method
A sampling system and water level control technology, applied in liquid level control, non-electric variable control, control/regulation system, etc., can solve the problems of original machinery, increased equipment cost, freezing of sampling cups and samplers, etc., to reduce Manpower and equipment costs, improving accuracy, and avoiding the effect of being damaged by freezing
Active Publication Date: 2014-09-24
GREE ELECTRIC APPLIANCES INC OF ZHUHAI
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Problems solved by technology
There are multiple disadvantages in manual manual control: 1. The method is primitive and wastes human resources; 2. The timely discharge of sampling water cannot be guaranteed under low temperature conditions, which will easily cause the sampling water cup and sampler to be damaged by freezing and increase equipment costs; 3. Manual operation standards Inconsistency, large deviation of water level control, difficult to guarantee the accuracy of sampling test results
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[0030] The present invention will be described in detail below in conjunction with examples. It should be noted that, in the case of no conflict, the embodiments in the present application and the features in the embodiments can be combined with each other.
[0031] see figure 1 , generally, the sampling system in the high and low temperature working room mainly includes a sampling water cup 10 and a sampler 20, the sampler 20 is provided with a first thermometer 30 and a second thermometer 40, and the first thermometer 30 is used to collect the temperature in the sampler 20 For dry bulb temperature, the lower end of the second thermometer 40 is wrapped with sampling gauze 41 for collecting the wet bulb temperature in the sampler 20 . When collecting the wet bulb temperature, it is necessary to ensure the height of the gauze immersed in the sampling water. Manual inspection and water replenishment cannot ensure that the height of the gauze immersed in the water is consistent ...
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The invention discloses a sampling system water level control device and method. The device comprises a first electromagnetic valve, a second electromagnetic valve, a third electromagnetic valve, a liquid level switch, a temperature sensor and a controller, wherein the first electromagnetic valve is arranged on a drainage pipeline of a sampling water cup in a sampling system, the second electromagnetic valve is arranged on a drainage pipeline of a sampler in the sampling system, the third electromagnetic valve is arranged on a water replenishment pipeline between the sampling water cup and the sampler, the liquid level switch is arranged in the sampler, and the first electromagnetic valve, the second electromagnetic valve, the third electromagnetic valve, the liquid level switch and the temperature sensor are electrically connected with the controller. By means of the sampling system water level control device and method, full-automatic control over the water level of the sampling system in the high-temperature and low-temperature working condition room is achieved, the sampling water cup and the sampler are prevented from being frozen under the low-temperature working condition, stability of the water level of the sampler is ensured on the basis that labor cost and device cost are reduced, and accuracy of sampling test is improved.
Description
technical field [0001] The invention relates to the technical field of automation control, in particular to a water level control device and method applied to a sampling system of a high and low temperature working chamber. Background technique [0002] The water level control of the traditional sampling system completely relies on manual inspection and manual operation control, specifically: low-temperature manual water release and high-temperature manual water replenishment. There are multiple disadvantages in manual manual control: 1. The method is primitive and wastes human resources; 2. The timely discharge of sampling water cannot be guaranteed under low temperature conditions, which will easily cause the sampling water cup and sampler to be damaged by freezing and increase equipment costs; 3. Manual operation standards Inconsistency, the water level control deviation is large, and the accuracy of the sampling test results is difficult to guarantee. Contents of the i...
Claims
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Inventor 朱恩选赖海龙
Owner GREE ELECTRIC APPLIANCES INC OF ZHUHAI