JP4670239B2 - Ventilation method for fuel cell power generator - Google Patents

Ventilation method for fuel cell power generator Download PDF

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JP4670239B2
JP4670239B2 JP2003418955A JP2003418955A JP4670239B2 JP 4670239 B2 JP4670239 B2 JP 4670239B2 JP 2003418955 A JP2003418955 A JP 2003418955A JP 2003418955 A JP2003418955 A JP 2003418955A JP 4670239 B2 JP4670239 B2 JP 4670239B2
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ventilation
fuel cell
cell power
power generator
housing
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JP2005183058A (en
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茂実 加藤
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Fuji Electric Co Ltd
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Fuji Electric Holdings Ltd
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    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/30—Hydrogen technology
    • Y02E60/50—Fuel cells

Description

本発明は、主要機器が一つの筐体内に収められたパッケージ型の燃料電池発電装置に係り、特に、建物の近傍に設置される装置の換気方法に関する。   The present invention relates to a package type fuel cell power generation apparatus in which main equipment is housed in a single casing, and more particularly to a ventilation method for an apparatus installed in the vicinity of a building.

パッケージ型の燃料電池発電装置は、水素と空気から電気エネルギーを発生させる燃料電池本体、都市ガス等から燃料電池本体に供給する水素を生成する改質装置等の主要機器を同一筐体中に収納して構成されている。収納された機器ではこのように可燃性ガスを使用しているので、筐体内に可燃性ガスが漏洩し、爆発する危険性がある。したがって、パッケージ型の燃料電池発電装置では、筐体内の可燃性ガスの濃度が爆発限界を超えないように、また、収納された機器が過熱しないように筐体内を換気している。
筐体内の換気方法としては、通常、ファンにより換気空気を導入して換気する方法が採られており、例えば、特許文献１には、１台のファンで筐体内の換気を効率的に行い、低コストで、消費電力が削減される装置が開示されている。
特開平９−１９９１５２号公報 Package-type fuel cell power generators house main equipment such as a fuel cell body that generates electrical energy from hydrogen and air, and a reformer that generates hydrogen supplied from city gas to the fuel cell body. Configured. Since the housed equipment uses the flammable gas in this way, there is a risk of the flammable gas leaking into the casing and exploding. Therefore, in the package type fuel cell power generator, the inside of the housing is ventilated so that the concentration of the combustible gas in the housing does not exceed the explosion limit and the housed equipment is not overheated.
As a ventilation method in the housing, a method of ventilating by introducing ventilation air with a fan is usually adopted. For example, Patent Document 1 efficiently ventilates the housing with a single fan, An apparatus that consumes less power at low cost is disclosed.
JP-A-9-199152

上記のように、従来のパッケージ型の燃料電池発電装置では、通常、ファンにより換気空気を導入して筐体内を換気して、可燃性ガスの爆発や収納機器の過熱を防止している。しかしながら、このようにファンによる換気を行うためには、専用の換気ファンを設置して連続して運転しなければならないので、設置コストが高くなるとともに換気ファンの駆動電力が必要となり、その電力分だけ発電効率が低下してしまうという問題点がある。
本発明はこの問題点に着目してなされたもので、本発明の目的は、専用の換気ファンを設置しなくとも筐体内が効果的に換気され、パッケージ型の燃料電池発電装置が高い発電効率で運転できる換気方法を提供することにある。 As described above, in the conventional package type fuel cell power generator, ventilation air is usually introduced by a fan to ventilate the inside of the casing, thereby preventing the explosion of combustible gas and the overheating of the storage device. However, in order to ventilate with a fan in this way, a dedicated ventilation fan must be installed and operated continuously, which increases the installation cost and requires driving power for the ventilation fan. However, there is a problem that the power generation efficiency is lowered.
The present invention has been made paying attention to this problem, and the object of the present invention is to effectively ventilate the inside of the housing without installing a dedicated ventilation fan, and the package type fuel cell power generator has high power generation efficiency. It is to provide a ventilation method that can be operated in

上記の目的を達成するために、本発明においては、
燃料電池本体および改質装置を含む主要機器を一つの筐体内部に納めて構成されるパッケージ型の燃料電池発電装置の換気方法において、
前記筐体の近傍の建物の換気システムの換気空気排出口と前記筐体に設けられた換気空気取り入れ口とを連結するダクトを通して、前記換気システムから排出された換気空気を前記の筐体の内部に導入し、筐体内部の換気を行うこととする。
In order to achieve the above object, in the present invention,
In a ventilation method of a package type fuel cell power generator configured to house main equipment including a fuel cell main body and a reformer in one casing,
Ventilation air exhausted from the ventilation system is passed through a duct connecting a ventilation air exhaust port of a ventilation system of a building in the vicinity of the housing and a ventilation air intake port provided in the housing. introduced into, and to perform the ventilation of the housing portion.

上記のごとく近傍の建物の換気システム、例えば２４時間換気システムから排出された換気空気を筐体の内部に導入して筐体内部の換気に用いることとすれば、パッケージ型の燃料電池発電装置に専用の換気設備を設ける必要がなく、その駆動電力が不要となるので、発電効率が向上することとなる。   As described above, if ventilation air exhausted from a nearby building ventilation system, for example, a 24-hour ventilation system is introduced into the housing and used for ventilation inside the housing, the package type fuel cell power generator can be used. Since it is not necessary to provide a dedicated ventilation facility and the driving power is not necessary, the power generation efficiency is improved.

本発明の最良の実施形態は、主要機器を一つの筐体内部に納めて構成されるパッケージ型の燃料電池発電装置において、近傍の建物の換気システム、例えば２４時間換気システムから排出された換気空気を筐体の内部に導入し、筐体内部を換気する形態にある。   In the best mode of the present invention, in a package type fuel cell power generation apparatus configured to house main equipment in one housing, ventilation air exhausted from a ventilation system of a nearby building, for example, a 24-hour ventilation system. Is introduced into the inside of the housing, and the inside of the housing is ventilated.

図１は、本発明の燃料電池発電装置の換気方法の実施例の説明図である。図において、１はパッケージ型の燃料電池発電装置、２は燃料電池発電装置１の近傍の建物、３は建物２に設置された換気システム、４はダクト、５は空気抜きである。このうち、燃料電池発電装置１は固体高分子形燃料電池を用いて構成されており、出力は約１ｋＷである。建物２は一般的な一戸建て住宅であり、この建物２に設置されている換気システム３は、国土交通省のＨＰに掲載の「改正建築基準法に基づくシックハウス対策の概要」に記載されている２４時間換気システムに則った換気システムで、２４時間連続して換気が行われ、その換気量は約２m3/minである。
本発明の燃料電池発電装置の換気方法では、図に見られるごとく、建物２に設置された換気システム３の換気空気排出口と燃料電池発電装置１の筐体の換気空気取り入れ口１ａとの間をダクト４で連結して、建物２より排出された換気空気を燃料電池発電装置１の筐体内に導入し、筐体内の換気に使用したのち、換気空気取り出し口１ｂより外部に排出する。なお、筐体内の換気に必要な空気量は建物２の換気空気量に比べて少量であるので、ダクト４に備えられた空気抜き５の絞りを調整して外部への抜き取り量を制御することにより、筐体内に導入される空気量が必要量に調整される。 FIG. 1 is an explanatory diagram of an embodiment of a ventilation method for a fuel cell power generator according to the present invention. In the figure, 1 is a package type fuel cell power generator, 2 is a building in the vicinity of the fuel cell power generator 1, 3 is a ventilation system installed in the building 2, 4 is a duct, and 5 is an air vent. Among these, the fuel cell power generator 1 is configured using a polymer electrolyte fuel cell, and the output is about 1 kW. The building 2 is a typical single-family house, and the ventilation system 3 installed in the building 2 is described in “Outline of Sick House Measures Based on the Revised Building Standard Law” published on the website of the Ministry of Land, Infrastructure, Transport and Tourism 24 The ventilation system conforms to the time ventilation system, and ventilation is performed continuously for 24 hours, and the ventilation volume is about 2 m 3 / min.
In the method for ventilating the fuel cell power generator according to the present invention, as shown in the figure, between the ventilating air outlet of the ventilating system 3 installed in the building 2 and the ventilating air inlet 1a of the casing of the fuel cell power generator 1. Are connected by a duct 4 and the ventilation air discharged from the building 2 is introduced into the casing of the fuel cell power generation device 1 and used for ventilation in the casing, and then discharged to the outside through the ventilation air outlet 1b. Since the amount of air required for ventilation in the housing is small compared to the amount of ventilation air in the building 2, the amount of air drawn out is controlled by adjusting the throttle of the air vent 5 provided in the duct 4. The amount of air introduced into the housing is adjusted to the required amount.

以上のごとき方法によって燃料電池発電装置の換気を行うこととすれば、燃料電池発電装置の換気に専用の換気装置を設ける必要がなく、その駆動電力も必要としないので、燃料電池発電装置を高い発電効率で運転することができる。なお、建物２より排出された換気空気をダクト４を通して燃料電池発電装置１の筐体内に導入するためには換気システム３の換気ファンの能力を上げる必要があるが、既に述べたごとく筐体内の換気に必要な空気量は建物２の換気空気量に比べて少量であるので、ダクト４の径や空気抜き５を適切に選定すれば、換気ファンの所要電力量の増大は無視できるレベルに抑えられる。   If the fuel cell power generator is ventilated by the above-described method, it is not necessary to provide a dedicated ventilator for ventilation of the fuel cell power generator, and the drive power is not required. It can be operated with power generation efficiency. In order to introduce the ventilation air exhausted from the building 2 into the casing of the fuel cell power generator 1 through the duct 4, it is necessary to increase the capacity of the ventilation fan of the ventilation system 3, but as described above, Since the amount of air required for ventilation is small compared to the amount of ventilation air in the building 2, if the diameter of the duct 4 and the air vent 5 are appropriately selected, the increase in the required power amount of the ventilation fan can be suppressed to a negligible level. .

以上述べたように、燃料電池発電装置を本発明のごとき方法によって換気することとすれば、燃料電池発電装置を高い発電効率で運転できる。したがって、本発明は、実施例のごとき一戸建て住宅の近傍に設置される燃料電池発電装置のみならず、共同住宅等の各種の建物の近傍に設置される燃料電池発電装置についても広く適用可能である。   As described above, if the fuel cell power generator is ventilated by the method of the present invention, the fuel cell power generator can be operated with high power generation efficiency. Therefore, the present invention is widely applicable not only to fuel cell power generators installed in the vicinity of detached houses as in the embodiments, but also to fuel cell power generators installed in the vicinity of various buildings such as apartment houses. .

本発明の燃料電池発電装置の換気方法の実施例の説明図Explanatory drawing of the Example of the ventilation method of the fuel cell power generator of this invention

符号の説明Explanation of symbols

１ 燃料電池発電装置（パッケージ型）
２ 建物
３ 換気システム
４ ダクト
５ 空気抜き
1 Fuel cell power generator (package type)
2 buildings
3 Ventilation system
4 Duct
5 Air vent

Claims (2)

燃料電池本体および改質装置を含む主要機器を一つの筐体内部に納めて構成されるパッケージ型の燃料電池発電装置の換気方法において、
前記筐体の近傍の建物の換気システムの換気空気排出口と前記筐体に設けられた換気空気取り入れ口とを連結するダクトを通して、前記換気システムから排出された換気空気を前記の筐体の内部に導入し、筐体内部の換気を行うことを特徴とする燃料電池発電装置の換気方法。 In a ventilation method of a package type fuel cell power generator configured to house main equipment including a fuel cell main body and a reformer in one casing,
Ventilation air exhausted from the ventilation system is passed through a duct connecting a ventilation air exhaust port of a ventilation system of a building in the vicinity of the housing and a ventilation air intake port provided in the housing. A ventilation method for a fuel cell power generator, wherein the ventilation is performed inside the housing. 前記換気システムが、２４時間換気システムであることを特徴とする請求項１に記載の燃料電池発電装置の換気方法。 Ventilation method of the preceding Symbol ventilation system, a fuel cell power generator according to claim 1, characterized in that a 24-hour ventilation system.
JP2003418955A 2003-12-17 2003-12-17 Ventilation method for fuel cell power generator Expired - Fee Related JP4670239B2 (en)

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Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH05290868A (en) * 1992-04-09 1993-11-05 Fuji Electric Co Ltd Ventilation structure for package type fuel cell power generation device
JP2001068124A (en) * 1999-08-26 2001-03-16 Sekisui Chem Co Ltd Fuel cell system
JP2003240252A (en) * 2002-02-15 2003-08-27 Kazuhiro Kawasaki Water (water cooling) air conditioner and floor heating by hp hot water feeding

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH05290868A (en) * 1992-04-09 1993-11-05 Fuji Electric Co Ltd Ventilation structure for package type fuel cell power generation device
JP2001068124A (en) * 1999-08-26 2001-03-16 Sekisui Chem Co Ltd Fuel cell system
JP2003240252A (en) * 2002-02-15 2003-08-27 Kazuhiro Kawasaki Water (water cooling) air conditioner and floor heating by hp hot water feeding

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