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KR-102963399-B1 - FUEL CELL POWER GENERATION SYSTEM

KR102963399B1KR 102963399 B1KR102963399 B1KR 102963399B1KR-102963399-B1

Abstract

The present invention comprises: a fuel cell; an antifreeze heat exchanger provided on a path through which a cooling antifreeze circulates to cool the fuel cell, thereby enabling heat exchange between the air gas to be supplied to the fuel cell and the cooling antifreeze; a condensate tank that condenses and stores moisture in the exhaust gas discharged from the fuel cell and enables heat exchange between the air gas passing through the antifreeze heat exchanger and the condensate; and a multi-pipe section configured to form a discharge path for the exhaust gas discharged from the fuel cell, enable heat exchange between the air gas passing through the condensate tank and the exhaust gas, and condense the moisture in the exhaust gas and discharge it to the condensate tank.

Inventors

  • 서준석

Assignees

  • 현대자동차주식회사
  • 기아 주식회사

Dates

Publication Date
20260508
Application Date
20210422

Claims (11)

  1. Fuel cell; An antifreeze heat exchanger provided on a path through which a cooling antifreeze circulates to cool the fuel cell, thereby enabling heat exchange between the air gas to be supplied to the fuel cell and the cooling antifreeze; A condensate tank that condenses and stores moisture in the exhaust gas discharged from the fuel cell, and enables heat exchange between the air gas passing through the antifreeze heat exchanger and the condensate; A multi-pipe section configured to form a discharge path for exhaust gas emitted from the fuel cell, enable heat exchange between the air gas passing through the condensate tank and the exhaust gas, and condense moisture in the exhaust gas and discharge it to the condensate tank; A fuel cell power generation system characterized by being composed including
  2. In claim 1, The above antifreeze heat exchanger is configured to allow heat exchange to occur between the facility water and the cooling antifreeze, thereby raising the temperature of the facility water and supplying it as hot water. A fuel cell power generation system characterized by
  3. In claim 1, An air supply pipeline supplying air gas from the above condensate tank to the above multi-pipe section is branched with a bypass pipeline capable of supplying air gas to the fuel cell by bypassing the above multi-pipe section; A selector valve device further comprising a state in which air passing through the condensate tank is supplied to the fuel cell through the multi-pipe section and a state in which the multi-pipe section is bypassed and the air is supplied directly to the fuel cell. A fuel cell power generation system characterized by
  4. In claim 1, The above multi-pipe section A flue gas pipe installed to discharge flue gas from the above fuel cell; An air gas pipe installed inside the exhaust gas pipe to supply air supplied from the condensate tank to the fuel cell; A fuel cell power generation system characterized by being composed of
  5. In claim 4, The above exhaust gas pipe is connected to a lower condensate pipe for discharging condensate formed by the condensation of moisture in the exhaust gas into the condensate tank; At least a portion of the exhaust gas pipe is formed at an angle with respect to the horizontal plane so that condensate condensed in the exhaust gas pipe is collected toward the condensate pipe by gravity. A fuel cell power generation system characterized by
  6. In claim 4, The above air gas pipe is formed of a metal material with high thermal conductivity so that heat exchange between the air gas inside and the exhaust gas flowing through the exhaust gas pipe from the outside is easily achieved. A fuel cell power generation system characterized by
  7. Fuel cell; A multi-pipe section configured to form a discharge path for exhaust gas emitted from the fuel cell, enable heat exchange between the air gas supplied to the fuel cell and the exhaust gas, and condense moisture in the exhaust gas to discharge it into a condensate tank; Composed of including, The above multi-pipe section A flue gas pipe installed to discharge flue gas from the above fuel cell; An air gas pipe installed inside the exhaust gas pipe to supply the air gas to the fuel cell; It consists of, The above air gas pipe is connected to the condensate tank by an air supply pipe so as to supply air gas heated by the condensate while passing through the condensate tank to the fuel cell; A bypass pipe is connected to the air supply pipe so that the air gas passing through the condensate tank bypasses the multi-pipe section and is supplied to the fuel cell. A fuel cell power generation system characterized by
  8. delete
  9. In claim 7, The above exhaust gas pipe is connected to a lower condensate pipe for discharging condensate formed by the condensation of moisture in the exhaust gas into the condensate tank; The lower part of the exhaust gas pipe is formed at an angle with respect to the horizontal plane so that the condensate condensed in the exhaust gas pipe is collected toward the condensate pipe by gravity. A fuel cell power generation system characterized by
  10. delete
  11. In claim 7, A first valve capable of controlling the opening of the air supply pipe is installed in the air supply pipe; The above bypass conduit is equipped with a second valve capable of controlling the opening of the above bypass conduit. A fuel cell power generation system characterized by

Description

Fuel Cell Power Generation System The present invention relates to a fuel cell power generation system, and more specifically to a polymer electrolyte fuel cell (PEMFC: Proton-exchange membrane fuel cells). A polymer electrolyte fuel cell is a device that generates electricity through an electrochemical reaction by supplying hydrogen, which is the fuel, to one side of an electrolyte membrane made of polymers and oxygen to the other side. Typically, since oxygen is used from the air, the polymer electrolyte fuel cell (hereinafter "fuel cell") is configured to supply hydrogen gas and air gas, and as electricity is produced, flue gas, which is humidified air, is released. The matters described as the background technology of the above invention are intended only to enhance understanding of the background of the invention and should not be construed as an acknowledgment that they constitute prior art already known to those skilled in the art. FIG. 1 is a diagram illustrating the configuration of a fuel cell power generation system according to the present invention. FIG. 2 is a diagram illustrating the system of FIG. 1 operating during the winter season. FIG. 3 is a diagram illustrating the system of FIG. 1 operating in conditions other than winter. Figure 4 is a drawing illustrating the structure of a double piping section. Specific structural or functional descriptions of embodiments of the present invention disclosed in this specification or application are merely illustrative for the purpose of explaining embodiments according to the present invention, and embodiments according to the present invention may be implemented in various forms and should not be interpreted as being limited to the embodiments described in this specification or application. Since embodiments according to the present invention may be subject to various modifications and may take various forms, specific embodiments are illustrated in the drawings and described in detail in this specification or application. However, this is not intended to limit embodiments according to the concept of the present invention to specific disclosed forms, and it should be understood that it includes all modifications, equivalents, and substitutions that fall within the spirit and scope of the present invention. Terms such as "first" and/or "second" may be used to describe various components, but said components shall not be limited by said terms. For the sole purpose of distinguishing one component from another, for example, without departing from the scope of rights according to the concept of the present invention, the first component may be named the second component, and similarly, the second component may be named the first component. When it is stated that one component is "connected" or "connected" to another component, it should be understood that while it may be directly connected or connected to that other component, there may also be other components in between. Conversely, when it is stated that one component is "directly connected" or "directly connected" to another component, it should be understood that there are no other components in between. Other expressions describing the relationship between components, such as "between" and "exactly between," or "adjacent to" and "directly adjacent to," should be interpreted in the same way. The terms used herein are used merely to describe specific embodiments and are not intended to limit the invention. Singular expressions include plural expressions unless the context clearly indicates otherwise. In this specification, terms such as “comprising” or “having” are intended to specify the existence of the described features, numbers, steps, actions, components, parts, or combinations thereof, and should be understood as not precluding the existence or addition of one or more other features, numbers, steps, actions, components, parts, or combinations thereof. Unless otherwise defined, all terms used herein, including technical or scientific terms, have the same meaning as generally understood by those skilled in the art to which the present invention pertains. Terms such as those defined in commonly used dictionaries should be interpreted as having a meaning consistent with their meaning in the context of the relevant technology, and should not be interpreted in an ideal or overly formal sense unless explicitly defined in this specification. The present invention will be described in detail below by explaining preferred embodiments of the invention with reference to the attached drawings. Identical reference numerals in each drawing indicate identical components. Referring to FIG. 1, an embodiment of the fuel cell (1) power generation system of the present invention comprises: a fuel cell (1); an antifreeze heat exchanger (3) provided on a path through which a cooling antifreeze that cools the fuel cell (1) circulates, thereby allowing heat exchange between the air gas to be supplied to the fuel cell