Liquid sampling device

A liquid sampling and liquid feeding technology, applied in sampling devices, preparation of test samples, etc., can solve the problems of poor practicability, complicated operation, limited sampling depth, etc., and achieve the effects of good practicability, simple operation and simple structure

Inactive Publication Date: 2013-05-08
INST OF GEOLOGY & GEOPHYSICS CHINESE ACAD OF SCI
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  • Abstract
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  • Application Information

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Problems solved by technology

The sampling depth of the small water pump is limited, and the cost is high; the sampling method of lowering the container to a predetermined depth has poor sealing performance, which makes the sample easily disturbed, and the size of the drilli

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Embodiment Construction

[0013] In order to make the purpose, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0014] figure 1 It is a schematic diagram of the overall composition and structure of the liquid sampling device of the present invention. figure 2 It is a front view of the liquid inlet one-way valve or the liquid outlet one-way valve of the present invention. image 3 It is an A-A sectional view of the liquid inlet one-way valve or the liquid outlet one-way valve of the present invention. Such as figure 1 , 2 , 3, the liquid sampling device of the present invention comprises a liquid reservoir 7, a liquid inlet one-way valve 52, a liquid inlet automatic piston 82, a liquid outlet one-way valve 51, a liquid outlet automatic piston 81, a trumpet-shaped diversion Port 10, circular liquid inlet filter screen 32, conical liquid outlet f...

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Abstract

The invention provides a liquid sampling device which comprises a liquid storage device, a liquid inlet one-way valve, a liquid inlet automatic piston, a liquid outlet one-way valve, a liquid outlet automatic piston, a horn-shaped liquid guide port, a round liquid inlet filter screen, a conical liquid outlet filter screen, a conical protection cover and an air bag, wherein a liquid outlet is formed on the upper end surface of the liquid storage device; the liquid outlet automatic piston, the liquid outlet one-way valve and the conical protection cover are sequentially arranged above the liquid outlet; the conical liquid outlet filter screen is arranged in the protection cover; the liquid inlet one-way valve, the liquid inlet automatic piston and the round liquid inlet filter screen are sequentially arranged at the lower end of the liquid storage device; the air bag is arranged between the liquid inlet automatic piston and the liquid inlet one-way valve; and the horn-shaped liquid guide port is formed below a round hole in the middle of the round liquid inlet filter screen. The liquid sampling device provided by the invention has the characteristics of better sample quality, simplicity in operation, relatively high practicability, relatively low cost and the like, and can be applied to the fields of sample acquisition and analysis and the like.

Description

technical field [0001] The invention relates to liquid extraction technology, in particular to a liquid sampling device. Background technique [0002] In practical applications, the size of the borehole drilled by the drilling equipment is relatively small, which makes sampling difficult. Sampling difficulties will cause a certain degree of interference in liquid detection and analysis in environmental protection, engineering and other industries; for example, fixed-depth sampling for isolated and extracted liquids at a certain depth. At present, there are mainly two methods for sampling at a fixed depth: one is to use a small water pump, and the other is to lower the container to a predetermined depth for sampling. The sampling depth is limited by using a small water pump, and the cost is high; when the container is lowered to a predetermined depth for sampling, the poor sealing makes the sample susceptible to interference, and the size of the drilling hole will impose cer...

Claims

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Application Information

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IPC IPC(8): G01N1/10G01N1/34
Inventor 郭捷马凤山赵海军
Owner INST OF GEOLOGY & GEOPHYSICS CHINESE ACAD OF SCI
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