Lake demixing water sampling instrument

A technology of sampler and water sample, applied in the direction of sampling device, etc., can solve the problems of unsuitable sampling activities of light boats in lakes and reservoirs, affecting the accuracy of analysis and testing, and difficulty in operation, and achieves good sampling effect, compact structure and simple operation. Effect

Inactive Publication Date: 2008-07-16
CHINA INST OF WATER RESOURCES & HYDROPOWER RES
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Problems solved by technology

However, this type of layered water sampler is mostly designed for marine scientific research, requires special boats and lifting equipment, has the disadvantages of complex structure and difficult operation, and is not suitable for sampling activities where light boats in lakes and reservoirs are used as sampling carriers.
In addition, since dissolved gases in water (suc

Method used

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  • Lake demixing water sampling instrument

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Embodiment Construction

[0013] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments, but not as a limitation of the present invention.

[0014] A kind of lake reservoir layered water sample sampler as shown in Figure 1, comprises sampling bottle 7 and traction rope 1, also comprises the fixed frame 9 that supports sampling bottle 7, connects the support 3 of fixed frame 9 by screw, is arranged on the support 3 and can move up and down along the support 3, and is used to seal the sealing device of the sampling bottle 7. The bracket 3 is hollow inside. Described traction rope 1 is fixedly connected with support 3, and the end of support 3 is provided with the disc counterweight 8 that is threadedly connected with its split, and disc counterweight 8 can overcome the buoyancy of sampling bottle 7, and its weight can be according to sampling bottle 7 volumes It can be adjusted, and water samples of different levels can be obtained by...

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Abstract

The invention provides a sampling device for a lake and reservoir water layer sample relating to a sampling device for a water sample; the invention includes a sampling bottle and a draught rope and also includes a fixing frame for supporting the sampling bottle, a supporter connecting the fixing frame and a sealing device which is arranged on the supporter and can move up and down along the supporter, used for sealing the sampling bottle. The draught rope is fixedly connected with the supporter and the tail end of the supporter is provided with a balance weight. The invention has the advantages of compact structure, easy carry, and good sampling effect, can ensure no remarkable dissipation losses of dissolved gas caused when in the sampling process, is suitable for the work of filed sampling and is adaptable to various field sampling conditions.

Description

technical field [0001] The invention relates to a water sample sampler, in particular to a lake and reservoir layered water sample sampler for measuring dissolved gas in water. Background technique [0002] Sampling of lakes and reservoirs is an important part of scientific research on water environment and protection and management of water environment. Collecting high-precision stratified water samples for water bodies with large water depths is the premise and basis for the smooth development of various research work. At present, a variety of commercial stratified water samplers (or devices) have been developed, which can collect stratified water samples with different requirements. However, this type of layered water sampler is mostly designed for marine scientific research work, requires special boats and lifting equipment, has the disadvantages of complex structure and difficult operation, and is not suitable for sampling activities where light boats in lakes and reser...

Claims

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Application Information

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IPC IPC(8): G01N1/16
Inventor 王雨春陆瑾周怀东冯健万晓红赵健
Owner CHINA INST OF WATER RESOURCES & HYDROPOWER RES
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