Liquid level volatile gas detection device for water body with frequently-changed water level

Abstract

The invention discloses a liquid level volatile gas detection device for a water body with the frequently-changed water level. The liquid level volatile gas detection device comprises floating plates and gas collection chambers with the open lower portions, a collection chamber sealing cover is arranged on the upper portions of the gas collection chambers in a matched mode, a lifting support comprises a base, a lifting arm, a lifting rope and a lifting motor, and a liquid level height sensing device is arranged in each floating plate and comprises a liquid level sensor, a wireless signal transceiver and a battery; the liquid level volatile gas detection device further comprises two symmetrically-arranged site clearing structures, a site clearing motor device and an intelligent control device, the intelligent control device comprises a controller, and the controller is connected with the lifting motor and a regulating motor separately and controls operation of the lifting motor and the regulating motor. The liquid level volatilization gas detection device has the advantages that the internal pressure and the external pressure of the gas collection chambers are balanced, the detection precision is high, the detected water surface can be cleaned, the intelligence degree is high, the water surface height can be detected, and all-weather continuous automatic detection can be achieved.

Description

technical field

[0001] The invention belongs to the technical field of gas sampling devices, and in particular relates to a liquid surface volatile gas detection device suitable for water bodies with frequent water level changes. Background technique

[0002] At present, the in-situ sampling method for volatile gases in sewage is mainly the closed air chamber method. That is, a closed container with a certain unit area is covered on the surface of the sewage to be tested to keep the water surface sealed, and the volatilization of the gas to be detected on the surface of the sewage in the closed container is measured within a unit of time. Due to the closed air chamber structure sampling, the gas in the airtight chamber needs to be pumped into the detection device for detection, resulting in a decrease in the air pressure in the airtight chamber, changing the surface environment of the water body to be tested, and affecting the accuracy of the detection results. Secondly, th...

Examples

Embodiment Construction

[0032] The specific embodiment of the present invention is further described below in conjunction with accompanying drawing:

[0033] The liquid surface volatile gas detection device suitable for water bodies with frequent water level changes of the present invention includes a hoisting bracket 3 and a detection mechanism. The detection mechanism includes a floating plate 1 and a gas collection chamber 2 with a lower opening. The lower part of the gas collection chamber 2 is inserted into the through chamber 11 and sealed and fixed with the floating plate 1. The gas collection chamber 2 is a tubular structure that penetrates up and down. The upper part of the gas collection chamber 2 is equipped with a collection chamber sealing cover 4, and the collection chamber is sealed. Cover 4 comprises an upper cover plate 41, a lower positioning plate 42 and a sealed air bag 43 connected between the upper cover plate 41 and the lower positioning plate 42. The diameter of the upper cover...

technical field

[0001] The invention belongs to the technical field of gas sampling devices, and in particular relates to a liquid surface volatile gas detection device suitable for water bodies with frequent water level changes. Background technique

[0002] At present, the in-situ sampling method for volatile gases in sewage is mainly the closed air chamber method. That is, a closed container with a certain unit area is covered on the surface of the sewage to be tested to keep the water surface sealed, and the volatilization of the gas to be detected on the surface of the sewage in the closed container is measured within a unit of time. Due to the closed air chamber structure sampling, the gas in the airtight chamber needs to be pumped into the detection device for detection, resulting in a decrease in the air pressure in the airtight chamber, changing the surface environment of the water body to be tested, and affecting the accuracy of the detection results. Secondly, th...

Examples

Embodiment Construction

[0032] The specific embodiment of the present invention is further described below in conjunction with accompanying drawing:

[0033] The liquid surface volatile gas detection device suitable for water bodies with frequent water level changes of the present invention includes a hoisting bracket 3 and a detection mechanism. The detection mechanism includes a floating plate 1 and a gas collection chamber 2 with a lower opening. The lower part of the gas collection chamber 2 is inserted into the through chamber 11 and sealed and fixed with the floating plate 1. The gas collection chamber 2 is a tubular structure that penetrates up and down. The upper part of the gas collection chamber 2 is equipped with a collection chamber sealing cover 4, and the collection chamber is sealed. Cover 4 comprises an upper cover plate 41, a lower positioning plate 42 and a sealed air bag 43 connected between the upper cover plate 41 and the lower positioning plate 42. The diameter of the upper cover...

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