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High-chlorine wastewater COD digestion instrument

The technology of high-chlorine wastewater and digester is applied in the field of detection, which can solve the problems of inconvenience in taking and placing bottles and inconvenient observation, and achieves the effects of convenient observation, solving inconvenience in taking and placing, and convenient recording.

Pending Publication Date: 2018-08-17
JINAN SENTE ELECTRONICS TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] The present invention aims at the above-mentioned deficiencies existing in the prior art, and provides a COD digestion instrument for high-chlorine wastewater, which solves the problems of inconvenient picking and placing of experimental bottles and inconvenient observation

Method used

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  • High-chlorine wastewater COD digestion instrument
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  • High-chlorine wastewater COD digestion instrument

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Embodiment Construction

[0027] In order to better understand the present invention, the implementation manner of the present invention will be explained in detail below in conjunction with the accompanying drawings.

[0028] Such as Figure 1-6 As shown, a COD digestion instrument for high-chlorine wastewater includes a chassis 1, a heating platform 102 is provided at the lower end of the front side of the chassis 1, and a heating plate 6 is arranged on the heating platform 102. The heating plate 6 is a far-infrared ceramic solid Core heating plate, and the quantity of heating plate 6 is six, and each heating plate is connected with PLC control module respectively, and described heating table 102 is provided with six Erlenmeyer flasks, and is respectively placed on the upper end of each heating plate 6, Each Erlenmeyer flask 5 is provided with a condenser tube 3 .

[0029] The upper side of the heating platform 102 is provided with a receiving platform 101, and the receiving platform 101 includes a ...

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Abstract

The invention discloses a high-chlorine wastewater COD digestion instrument comprising a case, wherein a heating table is arranged at the lower end of the front side of the case, a plurality of conical flasks are arranged on the heating table, each of the conical flasks is provided with a condensing pipe, the upper side of the heating table is provided with a receiving table, the receiving table is provided with a plurality of receiving bottles, a gas distributor, an electromagnetic proportional valve, a flow sensor and a PLC control module are respectively arranged in the case, the case is provided with a pressure regulating valve and a nitrogen inlet, the nitrogen inlet is internally provided with a gas inlet quick connector, the gas inlet quick connector, the pressure regulating valve,the gas distributor, the electromagnetic proportional valve, the flow sensor, and the conical flasks are sequentially connected through hoses, and the PLC control module is electrically connected withthe pressure regulating valve, the gas distributor, the electromagnetic proportional valve, and the flow sensor respectively. The experimental bottles are arranged on the front side to facilitate observation, heating and nitrogen flow rates are controlled by a single path, the stability is reliable, and the precision is more accurate.

Description

technical field [0001] The invention relates to the technical field of detection, in particular to a COD digestion instrument for high-chlorine wastewater. Background technique [0002] "Water Quality Chemical Oxygen Demand Determination of Dicomplex Salt Method" (GB11914-89) stipulates that this standard is not applicable to salt water containing chloride ion concentration greater than 1000ml / L (after dilution). When the chloride ion content exceeds 1000ml / L, the minimum allowable limit of COD is 250ml / L, and the accuracy below this value is not reliable. Therefore, GB11914-89 is not suitable for the determination of COD in high chloride ion wastewater, such as oil field wastewater, especially the oil extraction wastewater that has been purified and discharged up to the standard (COD<150ml / L). "Chlorine Calibration Method for Determination of Chemical Oxygen Demand in High Chlorine Wastewater" (HJ / T 70-2001) eliminates the interference of high chloride ion content on CO...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N1/44
CPCG01N1/44
Inventor 段作敏龚祺昊王琳徐庆华
Owner JINAN SENTE ELECTRONICS TECH
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