Boiler with a heat generation body that stores hydrogen

Patent metadata

Field	Value
Publication number	US-11326772-B2
Application number	US-202117179850-A
Country	US
Kind code	B2
Filing date	Feb 19, 2021
Priority date	Mar 16, 2020
Publication date	May 10, 2022
Grant date	May 10, 2022

Abstract

Provided is a boiler configured to perform heating by a heat generation section provided with heat generation bodies in a container and capable of properly charging a circulation path including, as part thereof, the inside of the container with required gas.A boiler includes: heat generation bodies; a container configured such that the heat generation bodies are provided inside and configured chargeable with gas with higher specific heat than that of air; and a circulation path including, as part thereof, the inside of the container, the circulation path being a path in which gas circulates. When the charging process of charging the circulation path with the gas is performed, a circulation amount and a gas concentration in the circulation path are monitored.

First claim

What is claimed is:

1. A boiler comprising:
a heat generation body;
a container configured such that the heat generation body is provided inside and configured to be chargeable during a charging process with hydrogen-based gas with higher specific heat than that of air;
a circulation path located in an inside of the container for providing a path for gas circulation;
a device including a vacuum pump configured to perform gas discharging from the circulation path during the charging process; and
a controller configured to perform the following tasks:
a. before safely operating a normal operation of the boiler, supplying a predetermined purge gas into the circulation path until a first predetermined condition is reached;
b. after reaching the first predetermined condition of the purge gas in the circulation path, supplying a predetermined hydrogen-based gas during a charge process into the circulation path while discharging the purge gas during a discharge process at the same time;
c. during the task b, monitoring in the circulation path a predetermined combination of a circulation amount and a concentration of a mixture of the hydrogen-based gas and the purge gas during the charge process and the discharge process to provide monitored values; and
d. upon reaching a second predetermined condition based upon the monitored values, stopping the charge process and the discharge process while starting to heat the boiler for the normal operation of the boiler.

2. The boiler according to claim 1 , wherein
the controller monitors the circulation amount based on a pressure difference between a downstream side and an upstream side of the heat generation body on the circulation path or a gas flowmeter provided on the circulation path.

3. The boiler according to claim 1 , wherein
the heat generation body is a reactant configured such that
a metal nanoparticle made of hydrogen storing metals is provided on a surface of the reactant, and
the metal nanoparticle stores a hydrogen atom to generate excess heat.

4. The boiler according to claim 1 , wherein the controller controls, after execution of the charging process, a heat generation amount of the heat generation body based on a pressure of steam supplied to an outside.

5. The boiler according to claim 1 , wherein the controller monitors the circulation amount based on a pressure difference between a downstream side and an upstream side of the heat generation body on the circulation path or a gas flowmeter provided on the circulation path.

6. A method of controlling a boiler, comprising the steps of:
a. before safely operating a normal operation of the boiler, supplying a predetermined purge gas into a circulation path until a first predetermined condition is reached;
b. after reaching the first predetermined condition of the purge gas in the circulation path, supplying a predetermined hydrogen-based gas during a charge process into the circulation path while discharging the purge gas using a vacuum pump during a discharge process at the same time;
c. during the step b, monitoring in the circulation path a predetermined combination of a circulation amount and a concentration of a mixture of the hydrogen-based gas and the purge gas during the charge process and the discharge process to provide monitored values; and
d. upon reaching a second predetermined condition based upon the monitored values, stopping the charge process and the discharge process while starting to heat the boiler for the normal operation of the boiler.

7. A method of controlling a boiler, comprising the steps of:
a. before safely operating a normal operation of the boiler, supplying a predetermined purge gas into a circulation path until a first predetermined condition is reached;
b. after reaching the first predetermined condition of the purge gas in the circulation path, start heating the boiler to a predetermined safe temperature and supplying a predetermined hydrogen-based gas during a charge process into the circulation path while discharging the purge gas using a vacuum pump during a discharge process at the same time;
c. during the step b, monitoring in the circulation path a predetermined combination of a circulation amount and a concentration of a mixture of the hydrogen-based gas and the purge gas during the charge process and the discharge process to provide monitored values; and
d. upon reaching a second predetermined condition based upon the monitored values, stopping the charge process and the discharge process while starting to heat the boiler beyond the predetermined safe temperature for the normal operation of the boiler.

Assignees

• Miura Kogyo Kk
• Clean Planet Inc

Inventors

• Otani Kazuyuki
• Katakawa Kenichi

Classifications

• C01B3/0031

  Intermetallic compounds; Metal alloys · CPC title

• F22B1/1869 Primary

  Hot gas water tube boilers not provided for in F22B1/1807 - F22B1/1861 · CPC title

• F24V30/00

  Apparatus or devices using heat produced by exothermal chemical reactions other than combustion · CPC title

• F22B35/08

  of forced-circulation type · CPC title

• F22B3/02

  involving the use of working media other than water · CPC title