CN218039317U

CN218039317U - Integrated hydrogen leakage detection and elimination device suitable for fuel cell system

Info

Publication number: CN218039317U
Application number: CN202222410644.0U
Authority: CN
Inventors: 张信运; 董震; 董清华; 张亮
Original assignee: Suyu Technology Huzhou Co ltd
Current assignee: Suyu Technology Huzhou Co ltd
Priority date: 2022-09-09
Filing date: 2022-09-09
Publication date: 2022-12-13
Anticipated expiration: 2032-09-09

Abstract

The utility model relates to an integrated form hydrogen leakage detects and remove device suitable for fuel cell system, DCDC subassembly, galvanic pile subassembly and BOP subassembly including the integrated form is arranged, DCDC subassembly, galvanic pile subassembly and BOP subassembly respective business turn over pipe are located the homonymy, and their respective business turn over pipe is located the homonymy of aviation baffle, be provided with the empty device that strains in the interval between aviation baffle and DCDC subassembly, galvanic pile subassembly and the BOP subassembly, empty device that strains is located the side of DCDC subassembly, and the hydrogen inlet of galvanic pile subassembly links to each other with the play hydrogen mouth that advances the hydrogen device, and the hydrogen inlet that advances the hydrogen device is linked together with the hydrogen outlet of hydrogen supply system, has seted up the hydrogen leakage interface on the top of empty device, be connected with on-line detection's hydrogen leakage sensor on the hydrogen leakage interface, the gas outlet of empty device of straining is connected to fuel cell's negative pole return circuit. The utility model discloses can ensure the security of equipment.

Description

Integrated hydrogen leakage detection and elimination device suitable for fuel cell system

Technical Field

The utility model belongs to fuel cell system integration and control field especially relates to an integrated form hydrogen leaks and detects and remove device suitable for fuel cell system.

Background

In fuel cell system applications, due to its anode gas (fuel) H ₂ Colorless, tasteless, flammable and explosive, and fails to fully open the civil market, and in the design level, engineers are careful and cautious due to risks and accidental accidents caused by hydrogen leakage.

At present, the conventional fuel cell air filter mostly adopts the air filter of a traditional heavy truck, has a circular structure, is large in volume, low in space utilization rate and difficult to integrate, is supplied in a form of fuel cell accessories in common designs, and increases the integration work of an application end; and the patent: 202010947838.7 a fuel cell integrated structure with air, hydrogen and water distribution functions, which integrates the above, but there is still a risk of hydrogen leakage, and in the existing hydrogen leakage detection design, the hydrogen concentration sensor is added to perform multi-point detection to ensure safety, but in practical application, the integrated structure design is complex, so that it is difficult to determine the concentration point of hydrogen leakage escape, too many hydrogen concentration sensors are added, the cost is increased, the hydrogen concentration sensors are less arranged, the hydrogen leakage detection is not in place, and the risk is increased.

SUMMERY OF THE UTILITY MODEL

In order to solve the above technical problems, the present invention provides an integrated hydrogen leakage detection and elimination device for a fuel cell system.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

an integrated hydrogen leakage detection and elimination device suitable for a fuel cell system comprises a DCDC component, a pile component and a BOP component which are arranged in an integrated mode, wherein the DCDC component is located on the upper layer, the pile component is a middle layer, the BOP component is a lower layer, inlet and outlet pipes of the DCDC component, the pile component and the BOP component are located on the same side, inlet and outlet pipes of the pile component are located on the same side of an air deflector, air filtering devices are arranged in intervals among the air deflector, the DCDC component, the pile component and the BOP component and are located on the side edge of the DCDC component, a hydrogen inlet of the pile component is connected with a hydrogen outlet of a hydrogen supply system, a hydrogen outlet of the pile component is connected to a circulation port of the hydrogen supply system through a hydrogen circulation pump, a hydrogen leakage port is arranged on the top of the air filtering device, a hydrogen leakage sensor for online detection is connected to a cathode loop of the fuel cell.

Preferably, the integrated hydrogen leakage detection and elimination device is suitable for a fuel cell system, and a replaceable air filter element is arranged in the air filter device.

Preferably, the integrated hydrogen leakage detection and elimination device is suitable for a fuel cell system, and the hydrogen leakage sensor is electrically connected with an electronic control system.

Preferably, the integrated hydrogen leakage detection and elimination device is suitable for a fuel cell system, and the air filter device is a square air filter device.

Borrow by above-mentioned scheme, the utility model discloses at least, have following advantage:

the utility model discloses can leak hydrogen through empty device of straining with their collection, leak the sensor through hydrogen and detect simultaneously, improve the security, and can also leak the hydrogen and retrieve the negative pole return circuit of fuel cell system and react, only leave the very few hydrogen through the safe atmosphere that discharges of tail bank, further promoted the whole security of system.

The above description is only an overview of the technical solution of the present invention, and in order to make the technical means of the present invention clearer and can be implemented according to the content of the description, the following detailed description is made with reference to the preferred embodiments of the present invention and accompanying drawings.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention, and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.

Fig. 1 is a schematic structural diagram of the present invention.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some embodiments of the present application, but not all embodiments. The components of the embodiments of the present application, generally described and illustrated in the figures herein, can be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the present application, presented in the accompanying drawings, is not intended to limit the scope of the claimed application, but is merely representative of selected embodiments of the application. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined or explained in subsequent figures.

In the description of the present application, it should be noted that the terms "vertical", "horizontal", "inside", "outside", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings or orientations or positional relationships that the products of the application usually place when in use, and are used only for convenience in describing the present application and for simplification of description, but do not indicate or imply that the devices or elements that are referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present application. Furthermore, the terms "first," "second," and the like are used merely to distinguish one description from another, and are not to be construed as indicating or implying relative importance.

Furthermore, the terms "horizontal", "vertical" and the like do not imply that the components are required to be absolutely horizontal or vertical, but may be slightly inclined. For example, "horizontal" merely means that the direction is more horizontal than "vertical" and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.

In the description of the present application, it is further noted that, unless expressly stated or limited otherwise, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present application can be understood in a specific case by those of ordinary skill in the art.

Examples

As shown in fig. 1, an integrated hydrogen leakage detecting and eliminating device suitable for a fuel cell system comprises a DCDC component 1, a stack component 2 and a BOP component 3 which are arranged in an integrated manner, wherein the DCDC component 1 is arranged on an upper layer as an electrical boosting component, the stack component 2 is a fuel cell reaction component arranged on a middle layer, one side surface of the DCDC component 1 is provided with an inlet and outlet pipeline pagoda for fuel (hydrogen) and oxidant (air) of the fuel cell system, and the BOP component 3 comprises an air supply and exhaust pipeline component (oxidant) and a water circulation component (thermal management) arranged on a lower layer, a hydrogen inlet device 6 is arranged on the fuel inlet and outlet pagoda side of the stack component 2, the hydrogen inlet device 6 is connected with an external hydrogen supply system 7 through an air deflector 4, an air filtering device 5 is arranged in an interval between the air deflector 4 and the DCDC component 1, the stack component 2 and the BOP component 3, the air filtering device 5 is positioned on the side of the DCDC component 1, a hydrogen outlet of the stack component 2 is connected to a hydrogen circulation pump 8, an air leakage detecting and a hydrogen leakage detecting interface 9 is arranged on the top of the hydrogen leakage detecting and the hydrogen leakage detecting interface is connected to a cathode leakage sensor 9.

The utility model discloses in be provided with removable air filter in the empty device of straining 5.

The utility model discloses in hydrogen leakage sensor 9 is electrically connected with electrical system.

The utility model discloses in empty filter 5 is the empty filter of square structure.

Wherein, DCDC subassembly 1, galvanic pile subassembly 2 and BOP subassembly 3 are disclosed with by patent number 202210267860.6 (a hydrogen fuel cell purge system and with positive pole fluctuation hydrogen pressure purge method) connection structure, do not do any repeated description here, only the utility model discloses arrange this three subassembly integrated form.

The hydrogen leakage sensor is designed to be continuously on-line, when the fuel cell does not work, when the hydrogen leakage sensor detects hydrogen leakage, and under the condition that each application condition permits, the air compressor is preferably started, and the leaked hydrogen is introduced into a cathode loop of the fuel cell for reaction, so that the safety of the whole system is ensured.

The hydrogen leakage sensor is designed to be continuously on-line, when the fuel cell works, when the hydrogen leakage sensor detects hydrogen leakage, the hydrogen supply of the hydrogen supply system (namely a hydrogen supply bottle) is preferentially cut off, and under the condition that the application end is provided with a high-voltage power supply on line, the air compressor continuously works to introduce the leaked hydrogen into a cathode loop of the fuel cell for reaction, so that the safety of the whole system is ensured.

The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and it should be noted that, for those skilled in the art, a plurality of modifications and variations can be made without departing from the technical principle of the present invention, and these modifications and variations should also be regarded as the protection scope of the present invention.

Claims

1. An integrated hydrogen leak detection and elimination apparatus suitable for a fuel cell system, comprising an integrated arrangement of a DCDC component (1), a stack component (2), and a BOP component (3), wherein the DCDC component (1) is located at an upper layer, the stack component (2) is a middle layer, and the BOP component (3) is a lower layer, characterized in that: the fuel cell system is characterized in that respective inlet and outlet pipes of the DCDC component (1), the pile component (2) and the BOP component (3) are located on the same side, the respective inlet and outlet pipes of the DCDC component (1), the pile component (2) and the BOP component (3) are located on the same side of the air deflector (4), an air filter device (5) is arranged in an interval between the air deflector (4) and the DCDC component (1), the pile component (2) and a hydrogen outlet of the hydrogen inlet device (6), the hydrogen inlet of the hydrogen inlet device (6) is communicated with a hydrogen inlet of a hydrogen supply system (7), the hydrogen outlet of the pile component (2) is connected to a circulation port of the hydrogen inlet device (6) through a hydrogen circulation pump (8), a hydrogen leakage port is formed in the top of the air filter device (5), an online detection hydrogen leakage sensor (9) is connected to the hydrogen leakage port, and an air outlet of the air filter device (5) is connected to a cathode loop of the fuel cell.

2. An integrated hydrogen leak detection and elimination apparatus, as defined in claim 1, adapted for use in a fuel cell system, wherein: a detachable air filter element is arranged in the air filter device (5).

3. An integrated hydrogen leak detection and elimination apparatus, as defined in claim 1, adapted for use in a fuel cell system, wherein: and the hydrogen leakage sensor (9) is electrically connected with the electric control system.

4. An integrated hydrogen leak detection and elimination apparatus, as defined in claim 1, adapted for use in a fuel cell system, wherein: the air filtering device (5) is of a square structure.