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Water electrolysis system and water level error calculation apparatus

An error calculation, water electrolysis technology, applied in the electrolysis process, electrolysis components, water/sewage treatment and other directions, can solve the problem of difficult to calculate the water level detection error of the gas-liquid separation device

Pending Publication Date: 2021-08-24
HONDA MOTOR CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] However, in the system described in Patent Document 1, since a capacitive water level sensor is used, it is difficult to calculate the detection error of the water level in the gas-liquid separator.

Method used

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  • Water electrolysis system and water level error calculation apparatus
  • Water electrolysis system and water level error calculation apparatus
  • Water electrolysis system and water level error calculation apparatus

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Embodiment Construction

[0014] Below, refer to Figure 1 to Figure 4 One embodiment of the present invention will be described. The water electrolysis system of this embodiment is a so-called packaged water electrolysis system housed entirely in a container or the like. The size of the container is, for example, about 300 to 400 mm in width, 200 to 300 mm in depth, and about 200 to 300 mm in height.

[0015] figure 1 It is a schematic configuration diagram of the water electrolysis system of this embodiment. Such as figure 1 As shown, the water electrolysis system 1 has: a pure water gas-liquid separation device 2, which stores pure water (hereinafter also referred to as "water"); a high-pressure water electrolysis stack 3, which electrolyzes water to generate oxygen and hydrogen; a high-pressure gas-liquid Separation device 4, it carries out gas-liquid separation with hydrogen; Weight sensor 5, it detects the weight of high-pressure gas-liquid separation device 4; High-pressure drainage device 6...

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Abstract

The invention provides a water electrolysis system (1), including: a water electrolyzer (3), configured to electrolyze water to generate gas including oxygen and hydrogen; a gas-liquid separator (4), configured to separate gas phase including hydrogen from liquid phase of the gas generated by the water electrolyzer (3); a water level detector (5), configured to detect a water level in the gas-liquid separator; a pressure detector (9), configured to detect a pressure of the gas phase in the gas-liquid separator (4); andcalculation units (8a, 82) that calculate an error in the water level in the gas-liquid separator (4) detected by the water level detector (5) on the basis of the pressure of the gas phase in the gas-liquid separator (4) detected by the pressure detector (9).

Description

technical field [0001] The present invention relates to a water electrolysis system for producing oxygen and hydrogen by electrolyzing water and a water level error calculation device for calculating a detection error of a water level based on pressure. Background technique [0002] As such a system, a system that electrolyzes water using an electrolyte membrane to generate oxygen and hydrogen is known. For example, the system described in Patent Document 1 is configured to store water permeated through an electrolyte membrane in a gas-liquid separator, and when the water level in the gas-liquid separator reaches a predetermined water level, part of the water is drained to separate the gas and liquid. The detection of the water level in the device uses a capacitive water level sensor. [0003] However, in the system described in Patent Document 1, since a capacitive water level sensor is used, it is difficult to calculate a detection error of the water level in the gas-liqu...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C25B1/04C25B15/02C25B15/023
CPCC25B1/04C25B15/02C25B15/083C25B15/023C02F1/46104C02F1/20C02F1/46109Y02E60/36C02F2209/03C02F2209/42C02F2201/4612
Inventor 浅野裕次武内淳青木和也
Owner HONDA MOTOR CO LTD