Timing sampler and method for runoff samples on basis of rainfall amount control
A technology of timed sampling and sampler, which is applied in the direction of program control, program control and general control system in sequence/logic controllers, can solve the problems of heavy workload, tedious and unreachable, and achieve high degree of automation, The effect of convenient operation
Pending Publication Date: 2017-03-22
温岭市职业技术学校
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Problems solved by technology
The workload is too heavy and cumbersome for manual collection, and the above-mentioned automatic runoff samplers cannot meet the requirements of this research
Method used
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[0025] The present invention will be further elaborated below in conjunction with the accompanying drawings and specific embodiments, so as to better understand the present invention. The technical features of the present invention can be combined with each other if there is no conflict.
[0026] Such as figure 1 and 2 Shown is a timing sampler for runoff samples based on rainfall control, including a first rain sensor 1, a sump 2, a sump cover 3, a rain damper 5, a liquid level control hole 6, and a second rain sensor 7 , DC motor 11, peristaltic pump 12, liquid level sensor 14, turntable 16, stepper motor 18 (comprising stepper motor driver), circuit control unit 19 (comprising PLC), silicone tube 20 and sampler housing 22. The top of the sampler shell 22 is provided with a sump 2 , the top of the sump 2 is provided with a sump cover 3 with a drainage slope on the upper surface, the side wall of the sump 2 is provided with a liquid level control hole 6 , and the sump cover...
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The invention discloses a timing sampler and a method for runoff samples on the basis of rainfall amount control. An initial runoff collecting starting device of the timing sampler comprises two rainwater sensors and a water catch basin. The timing sampler and the method have the advantages that the sampling interval time is controlled by a circuit control unit under runoff water quality conditions in different time frames in rainstorm periods, the starting and closing time can be timed, the altitude of a liquid level sensor can be set, and accordingly sampling requirements under discontinuous rainfall conditions in the rainstorm periods can be met; liquid detained in silicone tubes can be removed in sampling procedures, and the samples obtained in the various time frames can be prevented from being affected by the samples obtained at the corresponding previous time frames; rainfall runoff can be automatically acquired by the timing sampler under unattended conditions, and the timing sampler is high in automation degree and low in cost.
Description
technical field [0001] The invention belongs to the technical field of environmental monitoring, and in particular relates to a timing sampler for runoff samples based on rainfall control and a method thereof. Background technique [0002] After the rainfall, the runoff formed in the vegetable field will take away some elements such as nitrogen and phosphorus in the soil, which will collect in the river and cause water pollution. Therefore, we must figure out the fertilization of vegetable fields and the impact of heavy rain on runoff water quality. In the current market, devices related to the collection of runoff samples from vegetable fields are also constantly developing. For example, the application number is 201110254031.6, the name is a sequential sampler for runoff water, and the patent publication number is 102419270A. The interval uses the controller to control the operating time of the electric actuator unit to automatically and simply collect runoff water sample...
Claims
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Login to View More IPC IPC(8): G01N1/20G05B19/05
CPCG05B19/054G01N1/2035
Inventor 戴震班林琦陈乾张富强
Owner 温岭市职业技术学校