CN212810355U - Low-temperature heating and heat-preserving device of fuel cell system - Google Patents
Low-temperature heating and heat-preserving device of fuel cell system Download PDFInfo
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- CN212810355U CN212810355U CN202020179222.5U CN202020179222U CN212810355U CN 212810355 U CN212810355 U CN 212810355U CN 202020179222 U CN202020179222 U CN 202020179222U CN 212810355 U CN212810355 U CN 212810355U
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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
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Abstract
The utility model discloses a low-temperature heating and heat-preserving device of a fuel cell system, which comprises a lithium battery pack, a fan and heater assembly, a normally open one-way valve, a temperature control switch and the fuel cell system; the lithium battery pack is connected with the fan and heater assembly, the fan and heater assembly is connected with the temperature control switch, the fan and heater assembly is connected with the fuel cell system, and the temperature control switch is connected with the normally open one-way valve. The utility model can ensure that the internal temperature of the fuel cell system is kept within a certain range, and ensure that the residual water drops in the galvanic pile can not be frozen, thereby protecting the galvanic pile; and the phase-change material part is arranged and used for absorbing heat and preserving heat, so that the temperature in the system is not reduced too fast, and the electric quantity can be saved.
Description
Technical Field
The utility model relates to a fuel cell technical field more specifically relates to a fuel cell system low temperature heating heat preservation device.
Background
The most central component in the hydrogen fuel cell power generation system is the electric pile which is formed by connecting and combining a plurality of sections of proton exchange membrane fuel cells in series, based on the reaction principle characteristic of the fuel cells, a little water vapor can be remained in the hydrogen fuel cell power generation system, the hydrogen fuel cell power generation system can be condensed and frozen in the hydrogen fuel cell power generation system under the low-temperature environment, and the electric pile can be damaged if the heating and heat preservation treatment is not carried out.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to overcome prior art not enough, provide a fuel cell system low temperature heating heat preservation device, can guarantee that the inside temperature of fuel cell system keeps the certain limit in, ensure that the inside water droplet that remains of pile can not freeze to protection pile etc..
The purpose of the utility model is realized through the following technical scheme:
a low-temperature heating and heat-preserving device of a fuel cell system comprises a lithium battery pack, a fan and heater assembly, a normally open one-way valve, a temperature control switch and the fuel cell system; the lithium battery pack is connected with the fan and heater assembly, the fan and heater assembly is connected with the temperature control switch, the fan and heater assembly is connected with the fuel cell system, and the temperature control switch is connected with the normally open one-way valve.
Furthermore, an exhaust air inlet is arranged on the fuel cell system shell.
Furthermore, an air exhaust outlet is arranged on the fuel cell system shell.
Furthermore, a phase-change material heat-insulating layer is packaged on the inner surface of the fuel cell system shell.
Furthermore, when the fuel cell system generates electricity, the fan and the heater assembly do not work, the normally open check valve is in a normally open state, the system exhaust fan works normally, when the fuel cell system stops working and the temperature control switch detects that the temperature is lower than a lower limit value, the lithium battery pack simultaneously supplies power to the fan and the heater assembly and the normally open check valve, the fan and the heater assembly start working, the normally open check valve is closed, the system exhaust air inlet fan does not work at the moment, the system air is subjected to internal circulation heating, and the internal temperature of the system starts to rise; when temperature detect switch detected the temperature upper limit, the lithium cell group stopped to supply power to fan and heater module, and the heating termination, normally opened check valve still were in the closed condition, when temperature detect switch detected the temperature and was less than the lower limit value once more, and fan and heater module begin the heating once more, and is so repeated, guarantees that the inside temperature of fuel cell system keeps the certain extent, ensures that the inside water droplet that remains of pile can not freeze to the protection pile.
Further, the lower limit value is above freezing point.
The utility model has the advantages that:
(1) the utility model can ensure that the internal temperature of the fuel cell system is kept within a certain range, and ensure that the residual water drops in the galvanic pile can not be frozen, thereby protecting the galvanic pile;
(2) the utility model discloses be equipped with the phase change material part, its effect is heat absorption heat preservation, makes the inside temperature of system be unlikely to descend too fast, can save the electric quantity.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive exercise.
Fig. 1 is a schematic structural view of the present invention;
in the figure, 1-lithium battery pack, 2-fan and heater assembly, 3-phase change material heat insulation layer, 4-normally open one-way valve, 5-temperature control switch, and 6-fuel cell system.
Detailed Description
The technical solution of the present invention is described in further detail below with reference to the accompanying drawings, but the scope of the present invention is not limited to the following description. Any feature disclosed in this specification (including any accompanying claims, abstract and drawings), may be replaced by alternative features serving equivalent or similar purposes, unless expressly stated otherwise. That is, unless expressly stated otherwise, each feature is only an example of a generic series of equivalent or similar features.
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
Before describing the embodiments, some necessary terms need to be explained. For example:
if the terms "first," "second," etc. are used herein to describe various elements, these elements should not be limited by these terms. These terms are only used to distinguish one element from another. Thus, a "first" element discussed below could also be termed a "second" element without departing from the teachings of the present invention. It will be understood that when an element is referred to as being "connected" or "coupled" to another element, it can be directly connected or coupled to the other element or intervening elements may also be present. In contrast, when an element is referred to as being "directly connected" or "directly coupled" to another element, there are no intervening elements present.
The various terms appearing in this application are used for the purpose of describing particular embodiments only and are not intended as limitations on the invention, except where the context clearly dictates otherwise, the singular is intended to include the plural as well.
When the terms "comprises" and/or "comprising" are used in this specification, these terms are intended to specify the presence of stated features, integers, steps, operations, elements, and/or components, but do not preclude the presence and/or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof.
As shown in fig. 1, a low-temperature heating and heat-preserving device for a fuel cell system comprises a lithium battery pack 1, a fan and heater assembly 2, a normally open check valve 4, a temperature control switch 5 and a fuel cell system 6; lithium cell group 1 is connected with fan and heater module 2, and fan and heater module 2 is connected with temperature detect switch 5, and fan and heater module 2 is connected with fuel cell system 6, and temperature detect switch 5 is connected with normally open check valve 4.
Further, an exhaust air inlet is provided on the casing of the fuel cell system 6.
Further, an exhaust air outlet is arranged on the shell of the fuel cell system 6.
Further, a phase change material insulating layer 3 is packaged on the inner surface of the shell of the fuel cell system 6.
Further, when the fuel cell system 6 generates electricity, the fan and heater assembly 2 does not work, the normally open check valve 4 is in a normally open state, the system exhaust fan works normally, when the fuel cell system 6 stops working and the temperature detected by the temperature control switch 5 is lower than a lower limit value, the lithium battery pack 1 supplies power to the fan and heater assembly 2 and the normally open check valve 4 at the same time, the fan and heater assembly 2 starts working, the normally open check valve 4 is closed, the system exhaust air inlet fan does not work at the moment, the system air performs internal circulation heating, and the internal temperature of the system starts to rise; when temperature detect switch 5 detected the temperature upper limit, lithium cell group 1 stopped to fan and heater module 2 power supplies, and the heating termination, normally open check valve 4 still is in the closed condition, when temperature detect switch 5 detected the temperature and is less than the lower limit value once more, and fan and heater module 2 begin the heating once more, and is so repeated, guarantees that the inside temperature of fuel cell system keeps the certain extent, ensures that the inside water droplet that remains of pile can not freeze to the protection pile.
Further, the lower limit value is above freezing point.
Example 1
As shown in fig. 1, a person skilled in the art can use the present invention as a low-temperature heating and heat-preserving device for a fuel cell system, which comprises a lithium battery pack 1, a fan and heater assembly 2, a normally open check valve 4, a temperature control switch 5 and a fuel cell system 6; lithium cell group 1 is connected with fan and heater module 2, and fan and heater module 2 is connected with temperature detect switch 5, and fan and heater module 2 is connected with fuel cell system 6, and temperature detect switch 5 is connected with normally open check valve 4.
In the embodiment, when the fuel cell system generates electricity, the component 2 does not work, the component 4 is in a normally open state, the system exhaust fan works normally, when the fuel cell system stops working, and the component 5 detects that the temperature is lower than a lower limit value (higher than a freezing point), the component 1 supplies power to the components 2 and 4 at the same time, the component 2 starts working, the component 4 is closed, at the moment, the system exhaust air inlet fan does not work, the system air is subjected to internal circulation heating, and the internal temperature of the system starts rising; when the component 5 detects the upper temperature limit, the component 1 stops supplying power to the component 2, heating is terminated, the component 4 is still in a closed state, when the component 5 detects that the temperature is lower than the lower limit value again, the component 2 starts heating again, and the steps are repeated, so that the internal temperature of the fuel cell system is ensured to be kept within a certain range, residual water drops in the electric pile are ensured not to be frozen, and the electric pile is protected; when the system is in the power generation state again, the system can cut off the power supply of the component 1 to each component and quit the heat preservation state.
In addition, the phase change material component 3 is packaged on the inner surface of the fuel cell system shell and has the functions of heat absorption and heat preservation, so that the temperature in the system is not reduced too fast, and the electric quantity is saved.
In other technical features in this embodiment, those skilled in the art can flexibly select the technical features according to actual situations to meet different specific actual requirements. However, it will be apparent to one of ordinary skill in the art that: it is not necessary to employ these specific details to practice the invention. In other instances, well-known components, structures or parts are not described in detail in order to avoid obscuring the present invention, and the technical scope of the present invention is defined by the claims.
In the description of the present invention, unless otherwise expressly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are used in a generic sense as is understood by those skilled in the art. For example, the components may be fixedly connected, movably connected, integrally connected, or partially connected, mechanically connected, electrically connected, directly connected, indirectly connected through an intermediate medium, or connected inside two elements, and the like, and for those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations, that is, the expression of the language and the implementation of the actual technology can flexibly correspond, and the expression of the language (including the drawings) of the specification of the present invention does not constitute any single restrictive interpretation of the claims.
Modifications and variations may be made by those skilled in the art without departing from the spirit and scope of the invention, which should be limited only by the claims appended hereto. In the previous description, numerous specific details were set forth in order to provide a thorough understanding of the present invention. However, it will be apparent to one of ordinary skill in the art that: it is not necessary to employ these specific details to practice the invention. In other instances, well-known techniques, such as specific construction details, operating conditions, and other technical conditions, have not been described in detail in order to avoid obscuring the present invention.
Claims (4)
1. A low-temperature heating and heat-preserving device of a fuel cell system is characterized by comprising a lithium battery pack (1), a fan and heater assembly (2), a normally open one-way valve (4), a temperature control switch (5) and the fuel cell system (6); the lithium battery pack (1) is connected with the fan and heater assembly (2), the fan and heater assembly (2) is connected with the temperature control switch (5), the fan and heater assembly (2) is connected with the fuel cell system (6), and the temperature control switch (5) is connected with the normally open one-way valve (4).
2. The low-temperature heating and heat-insulating device of the fuel cell system as claimed in claim 1, wherein an exhaust air inlet is provided on the housing of the fuel cell system (6).
3. The low-temperature heating and heat-insulating device of the fuel cell system as claimed in claim 1, wherein an exhaust air outlet is provided on the housing of the fuel cell system (6).
4. The fuel cell system low-temperature heating and heat-insulating device according to any one of claims 1 to 3, wherein the phase-change material heat-insulating layer (3) is encapsulated on the inner surface of the shell of the fuel cell system (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020179222.5U CN212810355U (en) | 2020-02-18 | 2020-02-18 | Low-temperature heating and heat-preserving device of fuel cell system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020179222.5U CN212810355U (en) | 2020-02-18 | 2020-02-18 | Low-temperature heating and heat-preserving device of fuel cell system |
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| CN212810355U true CN212810355U (en) | 2021-03-26 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113299948A (en) * | 2021-06-24 | 2021-08-24 | 珠海格力电器股份有限公司 | Air-cooled fuel cell assembly and control method thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113299948A (en) * | 2021-06-24 | 2021-08-24 | 珠海格力电器股份有限公司 | Air-cooled fuel cell assembly and control method thereof |
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