CN215446876U - Fuel cell gas heating pipe and heating device thereof - Google Patents
Fuel cell gas heating pipe and heating device thereof Download PDFInfo
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- CN215446876U CN215446876U CN202121719300.7U CN202121719300U CN215446876U CN 215446876 U CN215446876 U CN 215446876U CN 202121719300 U CN202121719300 U CN 202121719300U CN 215446876 U CN215446876 U CN 215446876U
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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 fuel cell gas heating pipe and a heating device thereof, comprising a plurality of heating branch pipes for hydrogen or air circulation, wherein each heating branch pipe is in a hose-shaped structure and is detachably communicated, an electric heating part which is integrally formed with the heating branch pipe is arranged on the heating branch pipe, the electric heating parts of the adjacent heating branch pipes extend along the axial direction of the heating branch pipe and are detachably and electrically connected through a conductive connecting piece, when the fuel cell gas heating pipe is used, the hose has certain flexibility and can be bent freely, the adaptability is strong, the fuel cell gas heating pipe can adapt to different space environments, the heating branch pipes are detachably communicated, the electric heating parts of the adjacent heating branch pipes are detachably and electrically connected through the conductive connecting piece, the whole fuel cell gas heating pipe can be assembled in sections, the installation work is more convenient, the whole heating pipe does not need to be arranged in the equipment in a time-consuming and labor-consuming manner by utilizing the whole heating pipe in the prior art, and the gas heating pipe is flexibly adjusted according to the required length, so that the whole fuel cell gas heating pipe has stronger adaptability.
Description
Technical Field
The utility model relates to the technical field of fuel cells, in particular to a fuel cell gas heating pipe and a heating device thereof.
Background
In the prior art, hydrogen needs to be introduced into the anode of the fuel cell and air needs to be introduced into the cathode of the fuel cell in the testing process of the fuel cell, the hydrogen and the air with different temperatures have different influences on the performance of the galvanic pile, and the temperature needs to be adjusted to meet different testing working conditions in the testing process; the traditional solution is as follows: the heating belt is wound on the outer side of the cathode and anode pipelines, the heating belt is used for heating, heat is transferred to gas in the pipelines, and the layer of heat preservation cotton is wound on the outer side of the heating belt, so that excessive heat loss is prevented. But it mainly has the following disadvantages: firstly, the heating belt mainly comprises an electric heating material and an insulating material, the insulating material is wrapped outside the electric heating material, heat can heat gas only through the insulating material and the pipe wall of the pipeline during heating, the heat conduction efficiency is low, and in addition, the natural heat dissipation of the heating belt and the pipeline can aggravate heat loss, so that the heat conduction efficiency is too low; secondly, the heating belt of the traditional solution is wound manually, and the heating belt is not uniformly wound, so that the heating is not uniform, and the heating efficiency is low; thirdly, the length of the heating belt is fixed, sometimes the length of the heating belt is not enough, and the rear end of the pipeline cannot be heated, so that the pipeline temperature cannot rise late; fourth, the heating belt of the conventional solution can only heat the metal tube, and most of the pipe directly connected to the stack is non-metallic, that is, the heating belt can only heat the metal tube in the whole pipe, but the non-metal part is not heated, so that the heat conduction efficiency is too low.
The patent document CN104165254A discloses a freeze-proof plastic pipe, which comprises a plastic pipe body, a heating wire regulator and an electric heating wire, wherein the electric heating wire is interwoven into a heating net sleeve, the heating net sleeve is pre-embedded between the pipe walls of the plastic pipe body, a layer of heat-conducting and insulating heat-conducting silica gel sheet is arranged on the inner side of the heating net sleeve, the heating wire regulator is arranged on the outer side of the plastic pipe body, and power lines are respectively arranged between the heating wire regulator and the two ends of the heating net sleeve for linear connection; but the setting of whole frost resisting plastic tubing is whole column structure, if the setting of using fuel cell vent line is inconvenient, wears to establish it in the complex environment, is unfavorable for the installation work.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a fuel cell gas heating pipe and a heating device thereof, which are used for solving the problems in the prior art, heating branch pipes in a hose-shaped structure are detachably connected to form the integral fuel cell gas heating pipe, and electric heating parts on the heating branch pipes are also detachably connected through conductive connecting pieces, so that the whole fuel cell gas heating pipe is divided into a plurality of sections, can be bent at will in the specific installation process, has strong adaptability, can adapt to different space environments, and can be assembled in sections, so that the installation work is more convenient.
In order to achieve the purpose, the utility model provides the following scheme: the utility model provides a fuel cell gas heating pipe which comprises a plurality of heating branch pipes for hydrogen or air to circulate, wherein each heating branch pipe is of a hose-shaped structure and is detachably communicated with the heating branch pipe, an electric heating part integrally formed with the heating branch pipe is arranged on each heating branch pipe, the electric heating parts extend along the axial direction of the heating branch pipes, and the electric heating parts adjacent to the heating branch pipes are detachably and electrically connected through a conductive connecting piece.
Preferably, the conductive connecting piece comprises a conductive contact pin and a short circuit cap, the conductive contact pin is fixed on the heating branch pipe and is electrically connected with the electric heating part, and the conductive contact pins of two adjacent heating branch pipes are inserted into a conductive jack on the same short circuit cap.
Preferably, the conductive contact pin is arranged on the peripheral wall of the heating branch pipe body and close to the end part of the heating branch pipe body.
Preferably, the end parts of the heating branch pipes are provided with flanges in hard structures, and adjacent heating branch pipes are communicated through the flanges.
Preferably, the electric heating part is a spiral structure extending along the axial direction of the heating branch pipe, and the spiral structure surrounds the inner cavity of the heating branch pipe.
Preferably, the spiral structure comprises a plurality of electric heating wires arranged at intervals.
The fuel cell gas heating device comprises gas supply main paths which are respectively used for conducting hydrogen or air, each gas supply main path comprises a plurality of groups of heating branch paths which are arranged in parallel and provide gases with different temperatures, and each heating branch path is communicated with a fuel cell gas heating pipe and a control valve used for controlling the on-off of the gases.
Preferably, a power supply mechanism for respectively electrifying the electric heating part is arranged outside the heating branch, a second temperature sensor for detecting the temperature of the heated gas is arranged on the heating branch, and the second temperature sensor is electrically connected with the power supply mechanism.
Preferably, the second temperature sensor is disposed at an outlet of the heating branch.
Preferably, each heating branch is provided with a first temperature sensor for detecting the working state of the electric heating part, and the first temperature sensor is electrically connected with the power supply mechanism.
Compared with the prior art, the utility model has the following technical effects:
first, each heating is in charge of and is hose column structure, when specifically using, the hose has certain pliability, so can be crooked wantonly, strong adaptability, adaptable different space environment, and each heating can dismantle the intercommunication between in charge of, the electric heating portion of adjacent heating in charge of can dismantle the electricity through electrically conductive connecting piece and connect, make whole fuel cell gas heating pipe can the segmentation equipment, make the installation work more convenient, need not to utilize among the prior art that a whole heating pipe wastes time and energy to wear to establish in the middle of the equipment, and adjust in a flexible way according to required length, whole fuel cell gas heating pipe's adaptability is stronger.
Second, electrically conductive contact pin sets up on the periphery wall of heating branch pipe body, and be close to the tip of heating branch pipe body, when specifically connecting two adjacent electric heating portion, electrically conductive contact pin is located the periphery wall, utilize the direct two of short circuit cap to connect electrically conductive contact pin more easily, and electrically conductive contact pin is close to the end wall of heating branch pipe body, so when two electrically conductive contact pins are connected, can reduce the connection structure between the electrically conductive contact pin as far as, and then reduce the influence of above-mentioned connection structure when being crooked to heating branch pipe.
Thirdly, the end part of each heating branch pipe is provided with a flange plate in a hard structure, adjacent heating branch pipes are communicated through the flange plates, and the flange plates in the hard structures are adopted, so that when the heating branch pipes are bent and deformed, the flange plates are larger than the heating branch pipes in hardness, and cannot be pulled and deformed along with the deformation of the heating branch pipes, the original bonding strength with the other flange plate is kept, and the leakage of joints is avoided easily when the heating branch pipes are bent and deformed.
Fourth, electric heating portion is along heating the helical structure of the axial extension of being in charge of, helical structure encircles around heating the charge of inner chamber, on the one hand helical structure is in charge of the axial extension along the heating, the adaptation heating is in charge of the length, and encircle around heating the charge of inner chamber, it is more even to make the distribution that the heating was in charge of, so more be favorable to carrying out quick effectual heating to the gas that the heating was in charge of, on the other hand, helical structure's setting, more can the adaptation heating be in charge of the bending, avoid influencing its crooked degree.
Fifthly, each gas supply main road comprises a plurality of groups of heating branch roads which are arranged in parallel and provide gas with different temperatures, each heating branch road is communicated with a fuel cell gas heating pipe, a control valve for controlling the on-off of the gas, the control valve is used for controlling the heating branch roads with different on-off, so as to obtain gas with different temperatures, the gas heated by the same group of fuel cell gas heating pipes is avoided being only utilized, when the gas temperature is changed, because the heating has certain time span, inevitable waste of certain gas can be caused, so different heating branch roads are utilized, gas with different temperatures can be rapidly provided, the test requirement is met, and waste to a certain extent can be avoided.
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 embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without inventive exercise.
FIG. 1 is a schematic view of a two-heating branched pipe connection according to the present invention;
FIG. 2 is a schematic view of the short cap structure of the present invention;
FIG. 3 is a schematic view showing the connection of the fuel cell gas heating apparatus according to the present invention;
wherein, 1-heating branch pipe, 2-conductive contact pin, 3-short cap, 4-flange plate, 5-first temperature sensor, 6-conductive jack, 7-heating branch, 8-control valve.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. 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 invention.
The utility model aims to provide a fuel cell gas heating pipe and a heating device thereof, which are used for solving the problems in the prior art, heating branch pipes in a hose-shaped structure are detachably connected to form the integral fuel cell gas heating pipe, and electric heating parts on the heating branch pipes are also detachably connected through conductive connecting pieces, so that the whole fuel cell gas heating pipe is divided into a plurality of sections, can be bent at will in the specific installation process, has strong adaptability, can adapt to different space environments, and can be assembled in sections, so that the installation work is more convenient.
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in further detail below.
As shown in fig. 1 to 3, a fuel cell gas heating pipe is provided, which includes a plurality of heating branch pipes 1 for hydrogen or air to flow through, each heating branch pipe 1 is in a hose-shaped structure and is detachably connected, the heating branch pipes 1 are high temperature resistant hoses, such as rubber pipes and flexible PVC pipes, when the fuel cell gas heating pipe is used specifically, the hoses have certain flexibility and can be bent at will, and have strong adaptability, and can adapt to different space environments, an electric heating part integrally formed with the heating branch pipes 1 is provided on the heating branch pipes 1, for example, when the raw materials of the heating branch pipes 1 are melted, the electric heating part is pre-buried into the melted materials and then cooled and formed together, or the outer wall of the heating branch pipes 1 is provided with a detachable structure, when the heating branch pipes 1 are manufactured, the outer wall is detached and the electric heating part is placed inside the outer wall, thereby preventing the electric heating part from leaking outside the heating branch pipes 1 and causing excessive heat dissipation, the heating effect is influenced, and the phenomenon that the gas temperature control is influenced due to the fact that the heating speed is too high because the electric heating part is arranged in the cavity of the heating branch pipe 1 is avoided; the electric heating part extends along the axial direction of the heating branch pipe 1, so that the electric heating part can be arranged with the same length as the heating branch pipe 1, the condition that the gas in the inner cavity of the heating branch pipe 1 cannot be heated at the position where the electric heating part is not arranged at the part of the heating branch pipe 1, the heating is uneven or the preset temperature is difficult to reach is avoided, the whole fuel cell gas heating pipe can be ensured to stably heat the gas, and the problem that the temperature of a pipeline cannot rise late and cannot rise due to the fact that a heating belt is used in the prior art, the length of the heating belt is fixed, sometimes the length of the heating belt is not enough, and the rear end of the pipeline cannot be heated is avoided; and each heats and can dismantle the intercommunication between the branch pipe 1, and the electric heating portion of adjacent heating branch pipe 1 can dismantle the electricity through electrically conductive connecting piece and connect for whole fuel cell gas heating pipe can the segmentation equipment, makes the installation work more convenient, need not to utilize among the prior art that a whole heating pipe wastes time and energy wear to establish in the middle of the equipment, and carries out nimble regulation according to required length, and whole fuel cell gas heating pipe's adaptability is stronger.
As a preferred embodiment of the present invention, in order to ensure convenient and stable connection between the electrical heating parts of two adjacent heating branch pipes 1, the conductive connecting member includes a conductive pin 2 and a short circuit cap 3, the conductive pin 2 is fixed on the heating branch pipe 1 and is electrically connected with the electrical heating parts, the conductive pin 2 of two adjacent heating branch pipes 1 is inserted into a conductive jack 6 on the same short circuit cap 3, in the using process, the conductive pin 2 is prefabricated on the heating branch pipe 1, for example, integrally formed with the heating branch pipe 1, etc., the conductive pins 2 on the two heating branch pipes 1 are directly placed along the same position during installation, and then the short circuit cap 3 can be quickly inserted into the two conductive pins 2.
For reducing the influence of electrically conductive connecting piece when being managed 1 installation to the heating, electrically conductive contact pin 2 sets up on the periphery wall of 1 body is managed in the heating, and be close to the tip of 1 body is managed in the heating, when specifically connecting two adjacent electric heating portions, electrically conductive contact pin 2 is located the periphery wall, utilize short circuit cap 3 directly two to connect electrically conductive contact pin 2 more easily, and electrically conductive contact pin 2 is close to the end wall of 1 body is managed in the heating, so when two electrically conductive contact pins 2 are connected, can reduce the connection structure between electrically conductive contact pin 2 as far as, and then at the in-process of managing 1 installation in the heating, reduce the influence of managing 1 holistic crooked state in the heating as far as possible. As a preferred embodiment of the present invention, in order to make the short circuit cap 3 and the heating branch pipe 1 bend, the length of the short circuit cap 3 is slightly longer than the distance between the two conductive pins 2 to be connected, and the short circuit cap is made of a softer material, so that the short circuit cap can bend along with the bending of the heating branch pipe 1 in the bending process of the heating branch pipe 1, and the bending degree of the whole heating branch pipe 1 is further ensured.
In order to avoid the situation that gas is easy to leak at the joint of the heating branch pipes 1 in the bending process, the end parts of the heating branch pipes 1 are provided with flanges 4 which are in hard structures, such as steel flanges or hard plastic flanges, and the adjacent heating branch pipes 1 are communicated through the flanges 4, and the flanges 4 which are in hard structures are adopted, so that when the heating branch pipes 1 are bent and deformed, the flanges 4 are larger than the heating branch pipes 1 in hardness, and cannot be pulled and deformed along with the deformation of the heating branch pipes 1, the original bonding strength with the other flange 4 is kept, and the situation that the joint is easy to leak when the heating branch pipes 1 are bent and deformed is avoided. And a sealing gasket is arranged between the two flange plates 4 so as to fully avoid the occurrence of air leakage at the joint of the heating branch pipes 1.
Further, electric heating portion is along heating the helical structure who divides the axial extension of pipe 1, helical structure encircles around heating branch pipe 1 inner chamber, helical structure divides pipe 1 axial extension along the heating on the one hand, the adaptation heats the length of dividing pipe 1, and encircle around heating branch pipe 1 inner chamber, it is more even to make the distribution of heating branch pipe 1, so more be favorable to dividing the gas of intraductal 1 quick effectual heating to the heating, on the other hand, helical structure's setting, more can the adaptation heat the bending of dividing pipe 1, avoid influencing its crooked degree.
Wherein, helical structure includes the electric heating wire that a plurality of intervals set up, sets up the electric heating wire of double helix or many spirals promptly in the inner wall of heating branch pipe 1, and the heating is rapider, and the time spent is shorter, need not twine the heating tape and keep warm cotton, makes equipment succinct more, has also saved the experimental time. The both ends of heating branch pipe 1 all set up with each heating wire adaptation connection's wire contact pin, the electrically conductive contact pin 2 of two adjacent heating branch pipes 1 is corresponding to connect in pairs through short circuit cap 3, and is located the electrically conductive contact pin 2 at whole fuel cell gas heating pipe both ends, and wherein each electrically conductive contact pin 2 of one end is connected on the power, and each electrically conductive contact pin 2 of the other end is connected through short circuit cap 3 to reduce the setting of power cord.
Also provides a fuel cell gas heating device, which comprises gas supply main paths respectively used for conducting hydrogen or air, each gas supply main path comprises a plurality of groups of heating branch paths 7 which are arranged in parallel and provide gases with different temperatures, each heating branch path 7 is communicated with a fuel cell gas heating pipe and a control valve 8 used for controlling the on-off of the gas, the control valve 8 can adopt a pneumatic valve which can be adjusted in proportion, corresponding gas flow supply can be carried out aiming at different experiments, the control valve 8 is used for switching on and off different heating branch paths 7 to obtain gases with different temperatures, the situation that the heated gas is provided by only one group of fuel cell gas heating pipes is avoided, when the gas temperature is changed, as the heating has certain time span, certain gas waste can be inevitably caused, so that the gases with different temperatures can be rapidly provided by different heating branch paths 7, not only meets the test requirements, but also can avoid waste to a certain extent.
In order to control the accurate temperature control of heated gas, a power supply mechanism which is used for respectively electrifying the electric heating part is arranged on the outer side of the heating branch 7, a first temperature sensor 5 which is used for detecting the temperature of the heated gas is arranged on the heating branch 7, the first temperature sensor 5 is electrically connected with the power supply mechanism, and the first temperature sensor 5 controls the on-off of the power supply mechanism to the electric heating part in real time according to the obtained gas temperature signal.
Further, in order to ensure that the temperature of the gas entering the fuel cell can reach a preset value, the first temperature sensor 5 is arranged at the outlet of the heating branch 7, so that in the actual temperature detection process, the measuring point of the first temperature sensor 5 is closer to the fuel cell, and the temperature of the gas entering the fuel cell can be ensured to be more accurate.
Furthermore, each heating branch 7 is provided with a second temperature sensor for detecting the working state of the electric heating part, the second temperature sensor is electrically connected with the power supply mechanism, the temperature of the heating wire can be detected by the second temperature sensor, the working state of the heating wire can be monitored constantly, if the heating wire breaks down, the temperature can be found and reported timely, if the virtual connection causes the overhigh temperature, the circuit is broken, the temperature is not displayed, and the like.
The adaptation according to the actual requirements is within the protection scope of the utility model
It will be evident to those skilled in the art that the utility model is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the utility model being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
The principle and the implementation mode of the utility model are explained by applying a specific example, and the description of the embodiment is only used for helping to understand the method and the core idea of the utility model; meanwhile, for a person skilled in the art, according to the idea of the present invention, the specific embodiments and the application range may be changed. In view of the above, the present disclosure should not be construed as limiting the utility model.
Claims (10)
1. The utility model provides a fuel cell gas heating pipe, its characterized in that includes that a plurality of confession hydrogen or circulation of air's heating is in charge of, each the heating is in charge of and is hose column structure and can dismantle the intercommunication, the heating is in charge of and is equipped with rather than integrated into one piece's electric heating portion, just electric heating portion follows the axial extension setting of heating in charge of, adjacent the heating is in charge of the electric heating portion can dismantle the electricity through electrically conductive connecting piece and connect.
2. The fuel cell gas heating pipe according to claim 1, wherein the conductive connecting member includes a conductive pin and a short cap, the conductive pin is fixed to the heating branch pipe and electrically connected to the electric heating portion, and the conductive pins of two adjacent heating branch pipes are inserted into conductive insertion holes of the same short cap.
3. The fuel cell gas heating pipe according to claim 2, wherein the conductive pin is provided on an outer peripheral wall of the heating branch pipe body near an end of the heating branch pipe body.
4. The fuel cell gas heating pipe according to claim 1, wherein a flange having a hard structure is provided at an end of the heating branch pipe, and adjacent heating branch pipes are communicated with each other via the flange.
5. The fuel cell gas heating pipe according to claim 2 or 4, wherein the electric heating portion has a spiral structure extending in an axial direction of the heating sub-pipe, and the spiral structure is wound around an inner cavity of the heating sub-pipe.
6. The fuel cell gas heating pipe according to claim 5, wherein the spiral structure includes a plurality of electric heating wires arranged at intervals.
7. A fuel cell gas heating device using the fuel cell gas heating pipe according to any one of claims 1 to 6, comprising gas supply trunk lines for conducting hydrogen gas or air respectively, wherein each gas supply trunk line comprises a plurality of groups of heating branch lines which are arranged in parallel and provide gas with different temperatures, and each heating branch line is communicated with the fuel cell gas heating pipe and a control valve for controlling the on-off of the gas.
8. The fuel cell gas heating apparatus according to claim 7, wherein power supply means for supplying power to the electric heating portions are provided outside the heating branch, and a second temperature sensor for detecting a temperature of the gas to be heated is provided on the heating branch, and the second temperature sensor is electrically connected to the power supply means.
9. The fuel cell gas heating apparatus according to claim 8, wherein the second temperature sensor is provided at an outlet of the heating branch.
10. The fuel cell gas heating apparatus according to claim 8, wherein a first temperature sensor for detecting an operating state of the electric heating portion is provided on each of the heating branches, and the first temperature sensor is electrically connected to the power supply mechanism.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121719300.7U CN215446876U (en) | 2021-07-27 | 2021-07-27 | Fuel cell gas heating pipe and heating device thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121719300.7U CN215446876U (en) | 2021-07-27 | 2021-07-27 | Fuel cell gas heating pipe and heating device thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215446876U true CN215446876U (en) | 2022-01-07 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121719300.7U Active CN215446876U (en) | 2021-07-27 | 2021-07-27 | Fuel cell gas heating pipe and heating device thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215446876U (en) |
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2021
- 2021-07-27 CN CN202121719300.7U patent/CN215446876U/en active Active
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