Vapor supply device and drying system

Patent metadata

Field	Value
Publication number	US-12359848-B2
Application number	US-202117394986-A
Country	US
Kind code	B2
Filing date	Aug 5, 2021
Priority date	Feb 14, 2019
Publication date	Jul 15, 2025
Grant date	Jul 15, 2025

Abstract

A vapor supply device includes a sunlight-condensing heat collection unit which condenses sunlight and collects heat to obtain thermal energy, a heat-storage and heat-exchange unit which heats a heat-storage agent stored therein using the thermal energy obtained in the sunlight-condensing heat collection unit and stores thermal energy in the heat-storage agent, and heats a supply medium using the thermal energy stored in the heat-storage agent, and a vapor supply unit which supplies a vapor of the supply medium obtained by heating the supply medium in the heat-storage and heat-exchange unit.

First claim

What is claimed is:

1. A vapor supply device comprising:
a sunlight-condensing heat collector which condenses sunlight and collects heat to obtain thermal energy;
a heat-storage and heat-exchanger which includes a heat-storage agent storage tank in which a heat-storage agent is stored, and a stirrer which is installed in the heat-storage agent storage tank and stirs the heat-storage agent, and heats the heat-storage agent stored therein using the thermal energy obtained in the sunlight-condensing heat collector and stores thermal energy in the heat-storage agent, and heats a supply medium using the thermal energy stored in the heat-storage agent;
a vapor supplier which supplies, to an application destination, a vapor of the supply medium obtained by heating the supply medium in the heat-storage and heat-exchanger;
a superheat system sunlight-condensing heat collector which condenses sunlight and collects heat to obtain thermal energy; and
a superheat system heat-storage and heat-exchanger which includes a superheat system heat-storage agent storage tank in which a superheat system heat-storage agent is stored, and a superheat system stirrer which is installed in the superheat system heat-storage agent storage tank and stirs the superheat system heat-storage agent, and heats the superheat system heat-storage agent stored therein using the thermal energy obtained in the superheat system sunlight-condensing heat collector and stores thermal energy in the superheat system heat-storage agent, and heats a portion of a first vapor of the supply medium, which is the vapor of the supply medium obtained by heating the supply medium in the heat-storage and heat-exchanger, using the thermal energy stored in the superheat system heat-storage agent to obtain a superheated vapor of the supply medium having a temperature higher than that of the first vapor,
wherein the sunlight-condensing heat collector is configured to heat a heat medium using thermal energy obtained by condensing sunlight,
the superheat system sunlight-condensing heat collector is configured to heat a superheat system heat medium using thermal energy obtained by condensing sunlight,
the vapor supplier includes a vapor drum in which the supply medium is stored,
the heat-storage and heat-exchanger includes a primary heat exchanger which is provided in the heat-storage agent storage tank, is connected to the sunlight-condensing heat collector, and guides the heat medium which has passed through the sunlight-condensing heat collector, and a secondary heat exchanger which is provided in the heat-storage agent storage tank, is connected to the vapor drum, and guides the supply medium,
the superheat system heat-storage and heat-exchanger includes a superheat system primary heat exchanger which is provided in the superheat system heat-storage agent storage tank, is connected to the superheat system sunlight-condensing heat collector, and guides the superheat system heat medium which has passed through the superheat system sunlight-condensing heat collector, and a superheat system secondary heat exchanger which is provided in the superheat system heat-storage agent storage tank, is connected to the vapor drum, and guides the first vapor, and
a first pipe which connects the vapor drum and the application destination and through which the first vapor passes, a second pipe which branches from the first pipe and is connected to the superheat system secondary heat exchanger and through which the first vapor passes, and a third pipe which connects the superheat system secondary heat exchanger and a second application destination and through which the superheated vapor passes are provided.

2. The vapor supply device according to claim 1 ,
wherein the heat-storage and heat-exchanger heats the heat-storage agent by the heat medium which has been heated using the thermal energy.

3. The vapor supply device according to claim 1 ,
wherein the sunlight-condensing heat collector includes a plurality of sunlight-condensing heat collectors;
the heat-storage and heat-exchanger includes a plurality of heat-storage and heat-exchangers;
each of the plurality of heat-storage and heat-exchangers heats a heat-storage agent stored therein using the thermal energy obtained in the corresponding sunlight-condensing heat collector and stores thermal energy in the heat-storage agent, and heats the supply medium using the thermal energy stored in the heat-storage agent; and
the vapor supplier supplies vapors of the supply medium, which are respectively obtained by heating the supply medium in the plurality of heat-storage and heat-exchangers, under different conditions.

4. The vapor supply device according to claim 3 ,
wherein by heating a portion of a first vapor of the supply medium, which is obtained by heating the supply medium in a first heat-storage and heat-exchange unit of the plurality of heat-storage and heat-exchange units, in a second heat-storage and heat-exchange unit of the plurality of heat-storage and heat-exchange units, a superheated vapor of the supply medium which has a temperature higher than that of the first vapor is obtained.

5. The vapor supply device according to claim 1 , wherein the vapor supplier further includes an auxiliary boiler which heats the supply medium.

6. The vapor supply device according to claim 1 ,
wherein the vapor of the supply medium is continuously supplied by heating the supply medium using the thermal energy stored in the heat-storage agent even in a time zone in which thermal energy from sunlight is not obtained.

7. A drying system comprising:
the vapor supply device according to claim 1 ; and
a fluidized bed-drying device which uses the vapor of the supply medium supplied from the vapor supply device as a heat source to dry a high-humidity raw material while flowing the high-humidity raw material.

8. A drying system comprising:
the vapor supply device according to claim 4 ; and
a fluidized bed-drying device which uses the vapor of the supply medium supplied from the vapor supply device as a heat source and dries a high-humidity raw material using the superheated vapor while flowing the high-humidity raw material.

Assignees

• Ihi Corp

Inventors

• Ishii Toru

Classifications

• F24S60/10

  using latent heat · CPC title

• Y02E10/44

  Heat exchange systems · CPC title

• F26B3/084

  with heat exchange taking place in the fluidised bed {, e.g. combined direct and indirect heat exchange} · CPC title

• F24S90/00

  Solar heat systems not otherwise provided for · CPC title

• F22B33/18

  Combinations of steam boilers with other apparatus · CPC title