CN208296294U - A kind of heating device and preparing hydrogen by reforming methanol fuel cell system - Google Patents

Abstract

The utility model provides a kind of heating device and preparing hydrogen by reforming methanol fuel cell system, is related to hydrogen fuel cell technical field, solves the low technical problem of heating efficiency during fuel cell start-up.Including radiating part, multiple cooling fins, heating part and PTC heater, multiple cooling fins, which are fixedly installed in the radiating part and lay in the radiating part, forms fluid channel, respectively corresponds on the radiating part and offers the heat dissipation import being connected with the inlet and outlet of the fluid channel and heat dissipation outlet；The PTC heater is embedded in the heating part, and the heating part and the radiating part are fitted and connected to transfer heat to the radiating part.

Description

A kind of heating device and preparing hydrogen by reforming methanol fuel cell system

Technical field

The utility model relates to hydrogen fuel cell technical fields, more particularly, to a kind of heating device and preparing hydrogen by reforming methanol Fuel cell system.

Background technique

Methanol is from a wealth of sources, and price is low, easy storage, easily transport, hydrogen content are high, has become currently generally acknowledged vehicle-mounted hydrogen production Ideal fuels.Hydrogen content is high in the gaseous mixture for using vapour reforming to produce methanol, is most common a kind of heavy Whole hydrogen production process.Methanol steam process needs to absorb heat, this process needs one section of preheating time, and improves heat exchange efficiency, contracts Short preheating time can greatly shorten the time that fuel cell reaches steady operation, that is, when shortening the starting of fuel cell Between.

The heating device of preparing hydrogen by reforming methanol fuel cell system includes the calandria fitted closely from bottom to up and heat dissipation Case.Wherein reformer chamber is close to the upper wall of heat dissipation tank, so that methanol, which is circulated to heat dissipation tank from reformer chamber, heats recirculation to reformer chamber.

Current calandria has the liquid heating rod directly to liquid heating and the heat-generating pipe to air heating.Wherein, liquid Body heating rod is mostly red copper and stainless steel in-built electrical heated filament, and electric heating wire material is Aludirome silk, nichrome wire；To increase Add cost input.Heat-generating pipe is more special to air dry combustion method, and the material selection that it is not fixed, it is the temperature according to use environment Degree is to judge the electrically heated rod in the heat-generating pipe using what material.In order to ensure the service life of heat-generating pipe, it is necessary to carry out Corresponding temperature control.Operating temperature is in 100-300 degree or so, the material of heating tube material selection stainless steel 304；Operating temperature In 400-500 degree or so, the material of stainless steel 321 can be selected；Operating temperature will select stainless steel in 600-700 degree or so The material of 310S；To which calandria is comparatively laborious according to the selection of operating temperature, and thermal resistance is big, heat exchange efficiency is high and makes for a long time With power attenuation height.

Multiple cooling fins for heat dissipation are welded in heat dissipation tank, since cooling fin is welded in heat dissipation tank to be unfavorable for The processing and fabricating of cooling fin.Moreover, multiple cooling fins being arranged side by side and in multiple heat dissipations with clearance space in heat dissipation tank Multiple through-holes is opened up on the corresponding heat dissipation tank in the both ends of the direction of extension of piece.Multiple through-holes respectively correspond and multiple cooling fins Clearance space is connected, and for methanol flows in and out, and then realizes the heating to methanol.But due to needing dissipating Multiple through-holes are opened up in hot tank, to increase the external pipeline that heat dissipation tank to reformer chamber is connected, and then increase methanol with The contact area of external pipeline reduces the heat that methanol is absorbed.

In conclusion heating device in the prior art is asked in the presence of heating efficiency is low during fuel cell start-up Topic.

Utility model content

The utility model first aspect is designed to provide a kind of heating device, with solve it is existing in the prior art The low technical problem of heating efficiency during fuel cell start-up.Preferred skill in many technical solutions provided by the utility model Many technical effects elaboration as detailed below that art scheme can be generated.

To achieve the above object, the utility model provides following technical scheme:

A kind of heating device provided by the utility model, including radiating part, multiple cooling fins, heating part and PTC heater, Multiple cooling fins, which are fixedly installed in the radiating part and lay in the radiating part, forms fluid channel, the heat dissipation It is respectively corresponded in portion and offers the heat dissipation import being connected with the inlet and outlet of the fluid channel and heat dissipation outlet；It is described PTC heater is embedded in the heating part, and the heating part and the radiating part are fitted and connected to transfer heat to described dissipate Hot portion.

The utility model has the beneficial effects that passing through radiating part, cooling fin, fluid channel, heat dissipation import and heat dissipation outlet Setting can make liquid or gas absorb heat in flow liquid process and flow in the fluid passage by the way that heat dissipation import and heat dissipation outlet are corresponding Into and outflow.To reduce liquid or gas in the contact area of heat dissipation import and heat dissipation outlet and external pipeline, liquid is remained The heat that body or gas are absorbed improves the heating efficiency to liquid or gas.By the setting of PTC heater and heating part, More constant heating temperature can be generated, to improve heating efficiency of heating device during fuel cell start-up.

Based on the above technical solution, the utility model can also do following improvement.

Further, the heating device, the inner wall of the fixedly embedded radiating part in the end of cooling fin are multiple described The fluid channel is formed between cooling fin.

Further, the heating device, fluid channel is using S type or U-shaped or S type and U-shaped combination.

Further, the outer surface of the heating device, the PTC heater is coated with thermostable heat-conductive layer.

Further, the heating device, the PTC heater is using multiple.

Further, the heating device further includes insulation part, and the insulation part is fitted and connected the heating part and position In the opposite side of the radiating part.

Further, the heating device, the insulation part are made using heat-barrier material.

Further, the heating device, the bottom wall of the roof of the insulation part and the heating part, the heating part Roof and the bottom wall of the radiating part be that shape is adapted to fit closely and connect.

Further, the heating device further includes fixed part, and the fixed part is closely arranged the radiating part, institute State heating part and the insulation part.

The utility model second aspect is designed to provide a kind of preparing hydrogen by reforming methanol fuel cell system, existing to solve There is present in technology the low technical problem of heating efficiency during fuel cell start-up.Many skills provided by the utility model Many technical effects elaboration as detailed below that optimal technical scheme in art scheme can be generated.

To achieve the above object, the utility model provides following technical scheme:

A kind of methanol recapitalization fuel hydrogen manufacturing battery apparatus provided by the utility model, including such as the utility model first aspect The heating device.

Detailed description of the invention

In order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below will be to embodiment Or attached drawing needed to be used in the description of the prior art is briefly described, it should be apparent that, the accompanying drawings in the following description is only It is some embodiments of the utility model, for those of ordinary skill in the art, in the premise not made the creative labor Under, it is also possible to obtain other drawings based on these drawings.

Fig. 1 is the structure of the heating device of the utility model；

Fig. 2 is the utility model cooling fin insertion radiating part structural schematic diagram；

Fig. 3 is cooling fin layout stracture schematic diagram in radiating part in an embodiment of the present invention；

Fig. 4 is cooling fin layout stracture schematic diagram in radiating part in another embodiment of the utility model；

Fig. 5 is that the utility model heating device and reformer chamber cooperate assembly structure diagram.

1- radiating part in figure, 2- cooling fin, the heating part 3-, 4-PTC heater, 5- insulation part, 6- reformer chamber, 21- fluid Channel, 11- heat dissipation import, 12- heat dissipation outlet, 22- rigidized cover, 61- reform import.

Specific embodiment

To keep the purpose of this utility model, technical solution and advantage clearer, below by the technology to the utility model Scheme is described in detail.Obviously, the described embodiments are only a part of the embodiments of the utility model, rather than all Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are not before making creative work Obtained all other embodiment is put, the range that the utility model is protected is belonged to.

The utility model provides a kind of heating device, including radiating part 1, multiple cooling fins 2, heating part 3 and PTC fever Body 4.Multiple cooling fins 2, which are fixedly installed in radiating part 1 and lay in radiating part 1, forms fluid channel 21.Divide on radiating part 1 The heat dissipation import 11 being connected with the inlet and outlet of fluid channel 21 and heat dissipation outlet 12 Dui Ying not offered.PTC heater 4 It is embedded in heating part 3.Heating part 3 and radiating part 1 are fitted and connected to transfer heat to radiating part 1.

Specifically, as shown in Figure 1, wherein Fig. 1 is the structure of the heating device of the utility model.Radiating part 1 and heating Portion 3 can use body structure, certainly with can use other structures.The upper and lower side of cooling fin 2 is respectively and fixedly installed to radiate In portion 1.There is gap between two neighboring cooling fin 2, gap is formed by between multiple cooling fins 2 and is interconnected, thus shape At the fluid channel 21 for liquid or gas circulation.Heat dissipation import 11 is offered respectively at the both ends of radiating part 1 and is radiated out Mouthfuls 12, the inlet and outlet of fluid channel 21 respectively corresponds and heat dissipation import 11 and radiates and export 12 and is connected, thus liquid or Gas enters the import of fluid channel 21 by heat dissipation import 11, absorbs on cooling fin 2 in the process of circulation in fluid channel 21 Heat again from the outlet of circulation passage 21 flow out to heat dissipation outlet 12.Heat dissipation import 11 and heat dissipation outlet 12 can be all made of one It is a.

In the fixed insertion heating part 3 of PTC heater 4, thus PTC heater 4 heat is successively transferred to heating part 3, Radiating part 1 and cooling fin 2, liquid or gas absorb the heat on cooling fin 2 in fluid channel 21 in the process of circulation.PTC hair Hot body 4 can use structure known to a person skilled in the art, specifically, PTC heater 4 is PTC ceramics heater element, by With ripple aluminum strip through the cementing composition of high temperature after several monolithic parallel combinations.Have that thermal resistance is small, heat exchange efficiency is high and power is used for a long time Decay low advantage, and security performance is high, that is, when PTC heater 4 is because cannot sufficiently radiate, and power can be automatic Sharply decline, the surface temperature of PTC heater 4 is maintained apart from temperature or so (generally at 250 DEG C or so), thus will not at this time Generate surface " rubescent " phenomenon such as electric tube heater.In addition, the monnolithic case of PTC heater 4 is light and handy, in heating part 3 It is extremely convenient to assemble.

For PTC heater 4 also with the characteristic of constant temperature warming, principle is that self-heating heating makes resistance value after PTC heater 4 heats It increases and enters transition area, 4 surface temperature of PTC heater will keep constant value.And 4 surface temperature of PTC heater is only heated with PTC The Curie temperature of body 4 is related with applied voltage, and substantially unrelated with 4 place environment temperature of PTC heater.Even if in improper work In the case where work, due to the adjustment effect of PTC heater 4 itself, input power can drop very low, still be unlikely to generate unexpected feelings Condition.

The setting that 12 are exported by radiating part 1, cooling fin 2, fluid channel 21, heat dissipation import 11 and heat dissipation, can make liquid Body or gas absorb heat in flow liquid process in fluid channel 21 and flow into and flow by heat dissipation import 11 and 12 correspondence of heat dissipation outlet Out.To reduce liquid or gas in the contact area of heat dissipation import 11 and heat dissipation outlet 12 and external pipeline, liquid is remained Or the heat that gas is absorbed, improve the heating efficiency to liquid or gas.By the setting of PTC heater 4 and heating part 3, More constant heating temperature can be generated, to improve the heating efficiency of heating device during fuel cell start-up.

Optionally embodiment, the inner wall of the fixedly embedded radiating part 1 in the end of cooling fin 2, between multiple cooling fins 2 Form fluid channel 21.

Specifically, as shown in Fig. 2, can be respectively corresponded on the inner wall up and down of radiating part 1 for the ease of processing and dismounting The position of cooling fin 2 offers mounting groove.The upper and lower side of cooling fin 2 respectively corresponds in fixed insertion mounting groove.Implement one In example, cooling fin 2 and mounting groove can be using interference fits.In another embodiment, the position of mounting groove is embedded in cooling fin 2 It can also be closely arranged flexible rigidized cover 22, rigidized cover 22 can be made of silica gel material.To pass through rigidized cover The upper and lower side of 22 elasticity, cooling fin 2 is extruded into mounting groove, to play fixed effect.And then cooling fin 2 can Disassembly is fixedly mounted on radiating part 1, and the shape of fluid channel 21 can be converted by the installation site of multiple cooling fins 2.

Optionally embodiment, fluid channel 21 is using S type or U-shaped or S type and U-shaped combination.

Specifically, as shown in figure 3, wherein Fig. 3 is that cooling fin lays knot in radiating part in an embodiment of the present invention Structure schematic diagram.It is respectively corresponded on the front and rear wall of radiating part 1 and offers heat dissipation outlet 12 and heat dissipation import 11.Two adjacent heat radiations Passage gaps are formed between piece 2, the passage gaps that multiple cooling fins 2 are formed are interconnected and form S type fluid channel 21.Passing through will Fluid channel 21 is set as S type, to increase what liquid or gas contacted in the process of circulation with cooling fin 2 in fluid channel 21 Area, to improve heating efficiency.

As shown in figure 4, wherein Fig. 4 is that cooling fin layout stracture in radiating part is illustrated in another embodiment of the utility model Figure.Circulation passage 21 is using S type and U-shaped combination.Cooling fin 2 include after support cooling fin and it is preceding support cooling fin.Afterwards to cooling fin Rear end and the rear wall of radiating part 1 are inconsistent, so that liquid or gas be avoided to circulate；Front end to cooling fin and radiating part 1 afterwards Antetheca has preceding passage gaps, so as to make liquid or gas circulate.The rear wall of the preceding rear end to cooling fin and radiating part 1 has There are rear passage gaps, so as to make liquid or gas circulate；The preceding front end to cooling fin and the antetheca of radiating part 1 are inconsistent, To avoid liquid or gas from circulating.Cooling fin is supported afterwards and preceding cooling fin interval of supporting is installed, thus preceding passage gaps and rear circulation Gap is interconnected, and forms the circulation passage 21 of S type and U-shaped combination.It is flowed in fluid channel 21 to increase liquid or gas The area contacted during logical with cooling fin 2, to improve heating efficiency.

Due to the U-shaped partial shape for S type and U-shaped combination, those skilled in the art be understand that, therefore no longer superfluous herein It states.

Optionally embodiment, the outer surface of PTC heater 4 are coated with thermostable heat-conductive layer.

Specifically, as shown in Figure 1, offered on heating part 3 for PTC heater 4 be embedded in mounting groove, PTC is sent out In the fixed insertion mounting groove of hot body 4, in order to be fixed on PTC heater 4 preferably in mounting groove, in the upper of PTC heater 4 Thermostable heat-conductive layer is smeared on surface, to increase the thickness of PTC heater 4.It is of course also possible in other tables of PCT heater 4 Thermostable heat-conductive layer is smeared in face, to increase the volume of PTC heater 4, so that PTC heater 4 is made to combine closely with mounting groove, Gu Surely it is embedded, and then PTC heater 4 is prevented to be detached from heating part 3.By the setting of thermostable heat-conductive layer, PTC heater is also helped 4 transfer heat to heating part 3.

Optionally embodiment, PTC heater 4 is using multiple.

Specifically, fixation is embedded in heating part 3 respectively as shown in Figure 1, PTC heater 4 can use three.PTC fever The number that body 4 uses can be arranged according to institute's calorific requirement and heated perimeter.

Optionally embodiment, further includes insulation part 5, and insulation part 5 is fitted and connected heating part 3 and is located at radiating part 1 Opposite side.Preferably, insulation part 5 is made using heat-barrier material.

Specifically, as shown in Figure 1, radiating part 1 is located on heating part 3, in order to which the heat for reducing by 3 bottom of heating part is scattered It loses, the bottom wall in heating part 3 has been fitted and connected insulation part 5.To which heat is preferably transferred to radiating part 1 by heating part 3, thus Preferably liquid or gas can be heated.Heat-barrier material can be made of asbestos material.

Further, the bottom wall of the bottom wall of the roof of insulation part 5 and heating part 3, the roof and radiating part 1 of heating part 3 is equal It is adapted for shape and fits closely connection.

Specifically, as shown in Figure 1, in order to make the heat of heating part 3 preferably be transferred to radiating part 1, insulation part 5, heating Portion 3 and radiating part 1 successively fit closely connection from bottom to up, can be in such a way that stacking is placed.

Optionally embodiment, further includes fixed part, and fixed part is closely arranged radiating part 1, heating part 3 and insulation part 5。

Specifically, fixed part (not shown) can use body structure, it will stack gradually and fit closely from top to bottom Radiating part 1, heating part 3 and the insulation part 5 of connection are set in the inside of fixed part, to play fixed effect.

The utility model second aspect provides a kind of preparing hydrogen by reforming methanol fuel cell system, including such as the utility model the Heating device described in one side.

Specifically, as shown in figure 5, wherein Fig. 5 is the utility model heating device and reformer chamber cooperation package assembly signal Figure.Preparing hydrogen by reforming methanol fuel cell system further includes for the reformer chamber 6 to preparing hydrogen by reforming methanol.It is offered in reformer chamber 6 It reforms import 61 and reforms outlet (not shown), be connected to and in communication with, reform out with heat dissipation outlet 12 wherein reforming import 61 Mouth is connected to and in communication with heat dissipation import 11, so that liquid or gas flow out import 11 of being radiated from reformation outlet and enters radiating part 1 Interior fluid channel 21 absorbs the heat of cooling fin 2, and is reformed import 61 from heat dissipation outlet 12 and reformed into reformer chamber 6 Hydrogen manufacturing, to improve heating efficiency during fuel cell start-up.Reformer chamber 6 can use known to those skilled in the art The structure of dawn, details are not described herein.

Here for first choice it should be noted that " inside " is directed towards the direction in accommodating space center, " outside " is far from accommodating The direction in space center.

In the description of the present invention, it should be understood that term " center ", "upper", "lower", "front", "rear", The orientation or positional relationship of the instructions such as "left", "right", " transverse direction ", " vertical ", "horizontal", "bottom" "inner", "outside" is based on attached drawing Shown in orientation or positional relationship, be merely for convenience of describing the present invention and simplifying the description, rather than indication or suggestion institute The device or element of finger must have a particular orientation, be constructed and operated in a specific orientation, therefore should not be understood as to this reality With novel limitation.

In addition, term " first ", " second " are used for descriptive purposes only and cannot be understood as indicating or suggesting relative importance Or implicitly indicate the quantity of indicated technical characteristic.Define " first " as a result, the feature of " second " can be expressed or Implicitly include at least one this feature.The meaning of " plurality " is at least two, such as two in the description of the present invention, It is a, three etc., unless otherwise specifically defined.

In the present invention unless specifically defined or limited otherwise, term " installation ", " connected ", " connection ", " Gu It is fixed " etc. terms shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or integral；It can be Mechanical connection, is also possible to be electrically connected；It can be directly connected, two can also be can be indirectly connected through an intermediary The interaction relationship of connection or two elements inside element, unless otherwise restricted clearly.For the common skill of this field For art personnel, the concrete meaning of above-mentioned term in the present invention can be understood as the case may be.

In the present invention unless specifically defined or limited otherwise, fisrt feature is in the second feature " on " or " down " It can be that the first and second features directly contact or the first and second features are by intermediary mediate contact.Moreover, first is special Sign can be fisrt feature above the second feature " above ", " above " and " above " and be directly above or diagonally above the second feature, or only Indicate that first feature horizontal height is higher than second feature.Fisrt feature under the second feature " below ", " below " and " below " can be with It is that fisrt feature is directly under or diagonally below the second feature, or is merely representative of first feature horizontal height less than second feature.

Above description is only a specific implementation of the present invention, but the protection scope of the utility model is not limited to In this, anyone skilled in the art within the technical scope disclosed by the utility model, can readily occur in variation Or replacement, it should be covered within the scope of the utility model.Therefore, the protection scope of the utility model should be with the power Subject to the protection scope that benefit requires.

Claims (10)

1. a kind of heating device, which is characterized in that generate heat including radiating part (1), multiple cooling fins (2), heating part (3) and PTC Body (4),

Multiple cooling fins (2), which are fixedly installed in the radiating part (1) and lay in the radiating part (1), forms fluid Channel (21), respectively corresponds on the radiating part (1) to offer and is connected with the inlet and outlet of the fluid channel (21) It radiates import (11) and heat dissipation exports (12)；

The PTC heater (4) is embedded in the heating part (3), and the heating part (3) is fitted and connected with the radiating part (1) To transfer heat to the radiating part (1).

2. heating device according to claim 1, which is characterized in that the end of the cooling fin (2) is fixedly embedded described The inner wall of radiating part (1) forms the fluid channel (21) between multiple cooling fins (2).

3. heating device according to claim 1, which is characterized in that the fluid channel (21) uses S type or U-shaped or S Type and U-shaped combination.

4. heating device according to claim 1, which is characterized in that the outer surface of the PTC heater (4) is coated with resistance to High-temperature heat-conductive layer.

5. heating device according to claim 1, which is characterized in that the PTC heater (4) is using multiple.

6. heating device according to any one of claims 1 to 5, which is characterized in that further include insulation part (5), it is described every Hot portion (5) is fitted and connected the heating part (3) and is located at the opposite side of the radiating part (1).

7. heating device according to claim 6, which is characterized in that the insulation part (5) using heat-barrier material make and At.

8. heating device according to claim 7, which is characterized in that the roof of the insulation part (5) and the heating part (3) bottom wall, the roof of the heating part (3) and the bottom wall of the radiating part (1) are that shape is adapted to fit closely and connect.

9. heating device according to claim 6, which is characterized in that further include fixed part, the fixed part is closely arranged The radiating part (1), the heating part (3) and the insulation part (5).

10. a kind of preparing hydrogen by reforming methanol fuel cell system, which is characterized in that including as described in any one of claim 1 to 9 Heating device.