Water electrolysis device

Patent metadata

Field	Value
Publication number	US-10982340-B2
Application number	US-201816108823-A
Country	US
Kind code	B2
Filing date	Aug 22, 2018
Priority date	Aug 25, 2017
Publication date	Apr 20, 2021
Grant date	Apr 20, 2021

Abstract

A water electrolysis device includes a membrane electrolyzer, an air supplying tube, and an air pump. The electrolyzer includes an ion-exchange membrane and a cathode chamber. A cathode electrode is configured in the cathode chamber. The cathode generates hydrogen gas while the electrolyzer electrolyzes water. The air pump draws air and is connected with the air supplying tube by a duct. A lead angle is formed between the duct and the air supplying tube for guiding the air from the duct into the air supplying tube to dilute the hydrogen concentration in the air supplying tube. The volume of the water electrolysis device is 8.5 liters, and the hydrogen gas generating rate of the water electrolysis device is located in a range between 120 ml/min and 600 ml/min.

First claim

What is claimed is:

1. A water electrolysis device, comprising:
an integrated water tank module comprising a casing, a water tank in the casing, a hydrogen interface coupled to the casing, an oxygen interface coupled to the casing, a water interface coupled to the casing and the water tank, and a gas supplying tube coupled to the hydrogen interface, wherein the gas supplying tube comprises a gas supplying interface coupled to the casing;
an electrolyzer coupled to the integrated water tank module through the hydrogen interface, the oxygen interface and the water interface, wherein the electrolyzer outputs the hydrogen gas into the hydrogen interface and outputs the oxygen gas into the oxygen interface, and receives water from the water tank via the water interface to replenish the water in the electrolyzer during electrolyzing water; and
a pump coupled to the gas supplying interface to draw gas to the gas supplying interface to dilute the hydrogen gas in the gas supplying tube.

2. The water electrolysis device of claim 1 , wherein the gas supplying tube has a first flow direction, the gas supplying interface has a second flow direction, the first flow direction points to the upper portion of the water electrolysis device, the second flow direction points to the gas supplying tube, a lead angle is formed between the first flow direction and the second flow direction.

3. The water electrolysis device of claim 2 , wherein the lead angle formed between the first flow direction and the second flow direction is less than 90 degrees.

4. The water electrolysis device of claim 1 , wherein the electrolyzer further comprises an anode chamber and an oxygen output tube, and the anode chamber comprises an anode including an anode conductive plate, an anode sealing plate, and an anode external plate; when the electrolyzer electrolyzes the water, the anode chamber generates oxygen gas; the oxygen output tube is configured for outputting the oxygen gas; and the oxygen output tube passes through the anode external plate, the anode conductive plate and the anode sealing plate.

5. The water electrolysis device of claim 4 , wherein the electrolyzer further comprises a cathode chamber and a hydrogen output tube; the hydrogen output tube is configured for outputting the hydrogen gas; the cathode chamber comprises a cathode including a cathode conductive plate and a cathode sealing plate; the hydrogen output tube passes through the anode external plate, the anode conductive plate, the anode sealing plate and the cathode sealing plate, wherein the oxygen gas and the hydrogen gas are outputted on the same side of the electrolyzer.

6. The water electrolysis device of claim 4 , wherein the electrolyzer further comprises a water supplying pipe; the water supplying pipe is configured on and passes through the anode external plate, the anode conductive plate and the anode sealing plate to connect the anode chamber and the water tank; and water from the water tank flows into the anode chamber through the water supplying pipe to replenish water in the anode chamber.

7. The water electrolysis device of claim 6 , further comprising a water level detecting device; the water level detecting device being configured on the outer side of the water tank for detecting the amount of water in the water tank.

8. The water electrolysis device of claim 1 , further comprising a fan drawing the gas from the environment outside the water electrolysis device such that the pump guiding the gas into the gas supplying tube.

9. The water electrolysis device of claim 1 , further comprising:
a hydrogen concentration detector configured for detecting a volume concentration of the hydrogen gas and generating a first warning signal when the detected volume concentration of the hydrogen gas is higher than a first predetermined value; and
a controller coupled to the hydrogen concentration detector and configured for generating a start command to start up the pump when receiving the first warning signal.

10. The water electrolysis device of claim 1 , further comprising:
a hydrogen concentration detector configured for detecting a volume concentration of the hydrogen gas and generating a second warning signal when the detected volume concentration of the hydrogen is higher than a second predetermined value; and
a controller coupled to the hydrogen concentration detector and configured for generating a stop command to stop the electrolyzer when receiving the second warning signal.

11. The water electrolysis device of claim 9 , wherein the first predetermined value is 4%.

12. The water electrolysis device of claim 1 , further comprising a power supply; the power supply comprising a high power output and a low power output, wherein the electric power outputted by the low power output is equal to or less than half of that outputted by the high power output; the high power output outputs a first voltage and a first current, the low power output outputs a second voltage and a second current, the first voltage is less than the second voltage, and the first current is greater than the second current.

13. The water electrolysis device of claim 1 , further comprising an atomizing/volatile gas mixing tank coupled to the gas supplying tube and configured for receiving the diluted hydrogen gas, the atomizing/volatile gas mixing tank selectively generating an atomizing gas and mixing it with the diluted hydrogen gas to form a health gas, wherein the atomizing gas is water vapor, atomizing potions or volatile essential oil.

14. A water electrolysis device, comprising:
an integrated water tank module comprising a casing, a water tank in the casing, a hydrogen interface coupled to the casing, an oxygen interface coupled to the casing, a water interface coupled to the casing and the water tank, and an gas supplying tube coupled to the hydrogen interface;
an electrolyzer comprising a cathode, an anode, a hydrogen output tube, an oxygen output tube, and a water supplying pipe, the cathode generating hydrogen gas and the anode generating oxygen gas during electrolyzing water, wherein the hydrogen output tube outputs the hydrogen gas to the hydrogen interface, the oxygen output tube outputs the oxygen gas to the oxygen interface, and the water supplying pipe receives water from the water tank via the water interface to replenish the water in the electrolyzer; and
a pump, the pump coupled to the gas supplying interface to draw gas to dilute the hydrogen gas received by the gas supplying tube from the hydrogen interface.

15. The water electrolysis device of claim 14 , further comprising a case, the case comprising a base and a side wall, the electrolyzer being configured in a non-central position of the case, and a hydrogen generating rate of the water electrolysis device is between 120 ml/min and 600 ml/min.

16. The water electrolysis device of claim 15 , wherein the electrolyzer further comprises a first side, a second side, and an ion-exchange membrane, the ion-exchange membrane is configured between the anode and the cathode, wherein the first side is close to the side wall, the oxygen gas and the hydrogen gas are outputted from the second side of the electrolyzer.

17. The water electrolysis device of claim 16 , wherein the anode is configured between the ion-exchange membrane and the second side, the cathode is configured between the ion-exchange membrane and the first side, the oxygen output tube extends from the position between the ion-exchange membrane and the second side to the second side and passes through the second side, the hydrogen output tube extends f

Assignees

• Lin Hsin Yung

Inventors

• Lin Hsin-Yung

Classifications

• Y02E60/36

  Hydrogen production from non-carbon containing sources, e.g. by water electrolysis · CPC title

• C25B11/00

  Electrodes; Manufacture thereof not otherwise provided for · CPC title

• C25B15/02

  Process control or regulation · CPC title

• C25B15/08

  Supplying or removing reactants or electrolytes; Regeneration of electrolytes · CPC title

• C25B9/19

  with diaphragms · CPC title