CN213950588U - Methanol-water preheating device - Google Patents
Methanol-water preheating device Download PDFInfo
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- CN213950588U CN213950588U CN202022485165.6U CN202022485165U CN213950588U CN 213950588 U CN213950588 U CN 213950588U CN 202022485165 U CN202022485165 U CN 202022485165U CN 213950588 U CN213950588 U CN 213950588U
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Abstract
The utility model provides a methanol-water preheating device, include: preheating a cavity and a heat exchange bent pipe; a cavity is arranged in the preheating cavity; the top of the preheating cavity is provided with at least one combustion cavity waste gas inlet pipe, and the combustion cavity waste gas inlet pipe is communicated with the preheating cavity; the lower part of the preheating cavity is provided with a combustion waste gas outlet; the heat exchange bent pipe is arranged in the cavity; one end of the heat exchange elbow is connected with a methanol water inlet, the other end of the heat exchange elbow is connected with a methanol water outlet, and the methanol water inlet is formed in the lower portion of the preheating cavity; the methanol water outlet is arranged at the upper part of the preheating cavity. The utility model discloses can realize preheating to the methanol-water under the prerequisite that does not increase fuel cell system internal consumption.
Description
Technical Field
The utility model relates to a fuel cell technical field especially relates to a methanol-water preheating device.
Background
In the technical field of hydrogen production by methanol reforming, only if the proportion and the temperature of methanol steam meet the gasification requirement, and the methanol steam can generate hydrogen meeting the requirement when passing through the catalyst layer. In order to meet the gasification requirement, the prior art adds a heating device at the front end of a methanol water gasification device to preheat methanol water, but the electric energy used by the heating device also generates the fuel cell system, so that the power generated by the fuel cell system is directly consumed, and the power generation output power of the fuel cell system is directly reduced.
SUMMERY OF THE UTILITY MODEL
The utility model provides a methanol-water preheating device to solve current methanol-water preheating device and need consume fuel cell system's electric energy, thereby reduce fuel cell system's power generation output's technical problem, the utility model discloses can realize preheating of methanol-water under the prerequisite that does not increase fuel cell system internal consumption.
In order to solve the technical problem, the embodiment of the utility model provides a methanol-water preheating device, include:
preheating a cavity and a heat exchange bent pipe;
a cavity is arranged in the preheating cavity; the top of the preheating cavity is provided with at least one combustion cavity waste gas inlet pipe, and the combustion cavity waste gas inlet pipe is communicated with the preheating cavity; the lower part of the preheating cavity is provided with a combustion waste gas outlet;
the heat exchange bent pipe is arranged in the cavity;
one end of the heat exchange elbow is connected with a methanol water inlet, the other end of the heat exchange elbow is connected with a methanol water outlet, and the methanol water inlet is formed in the lower portion of the preheating cavity; the methanol water outlet is arranged at the upper part of the preheating cavity.
Preferably, a plurality of combustion waste gas baffles are arranged in the preheating cavity, and form a waste gas flow channel; the heat exchange elbow is arranged in the waste gas flow channel.
Preferably, a gas homogenizing channel is formed between the combustion waste gas baffle closest to the top of the preheating cavity and the top of the preheating cavity, and the gas homogenizing channel is communicated with the waste gas flowing channel.
Preferably, all of the combustion exhaust baffles are parallel to each other.
Preferably, the outer wall of the preheating cavity is provided with an electric heating sheet.
Preferably, the heat exchange bent pipe consists of a plurality of straight pipes and a plurality of U-shaped pipes, and two adjacent straight pipes are connected end to end through one U-shaped pipe to form an S-shaped bent pipe; an air flow channel is formed between the S-shaped bent pipe and the inner wall of the preheating cavity.
Preferably, the methanol water preheating device further comprises a combustion waste gas baffle, a combustion waste gas baffle is arranged between two adjacent straight pipes, one end of the combustion waste gas baffle is connected with the inner wall of the preheating cavity, and the other end of the combustion waste gas baffle is close to the U-shaped pipe;
and a combustion waste gas baffle is arranged between the straight pipe closest to the upper part of the preheating cavity and the upper part of the preheating cavity.
Preferably, the distance between each combustion baffle and its adjacent straight pipe is the same;
the distance between the combustion baffle closest to the upper part of the preheating cavity and the upper part of the preheating cavity is larger than the distance between the combustion baffle and the adjacent straight pipe.
Preferably, the electric heating sheet is disposed on the largest area of the outer wall of the preheating chamber.
Preferably, two combustion waste gas inlet pipes are arranged at the top of the preheating cavity.
The embodiment of the utility model provides a through let in burning chamber waste gas in preheating the cavity of cavity, let in the heat transfer return bend with the methanol-water, like this, burning chamber waste gas and methanol-water alright carry out the heat exchange, thereby reach the effect of preheating the methanol-water through the heat that utilizes burning chamber waste gas, in addition, the embodiment of the utility model provides a length of methanol-water pipe has been increased through the heat transfer return bend, thereby increased heat transfer area, and through preheating the cavity lower part with methanol-water inlet design, with methanol-water delivery port design preheating the cavity top, with waste gas air inlet design preheating the top of cavity and with waste gas outlet design preheating the lower part of cavity, thereby realized the heat exchange of cross mode. Through the technical means, the embodiment of the utility model provides an in limited space, increased heat transfer area to improve heat exchange efficiency, and then promoted the preheating effect to the methanol-water. The embodiment of the utility model provides a owing to need not to add a heating device that needs fuel cell system to provide the electric energy in addition, consequently, compare in prior art, the embodiment of the utility model provides a can reduce fuel cell system's internal consumption to can improve fuel cell system's output.
Drawings
FIG. 1 is a front sectional view of a methanol-water preheating device provided in an embodiment of the present invention;
FIG. 2 is a side sectional view of a methanol-water preheating device provided in an embodiment of the present invention;
FIG. 3 is a front sectional view of a methanol-water preheating device according to a preferred embodiment of the present invention;
FIG. 4 is a front sectional view of a methanol-water preheating device according to a preferred embodiment of the present invention;
FIG. 5 is a front sectional view of a methanol-water preheating device according to a preferred embodiment of the present invention;
fig. 6 is a side sectional view of a methanol-water preheating device according to a preferred embodiment of the present invention.
Detailed Description
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.
In the description of the present invention, unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which the present invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items. Furthermore, the terms "left", "right", "upper", "lower", "inner", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplified description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "mounted" and "connected" are to be construed broadly, e.g., as 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 invention can be understood in specific cases to those skilled in the art. Furthermore, the technical features mentioned in the different embodiments of the invention described below can be combined with each other as long as they do not conflict with each other.
Referring to fig. 1-2, fig. 1 is a front cross-sectional view of a methanol water preheating device provided in an embodiment of the present invention, and fig. 2 is a side cross-sectional view of a methanol water preheating device provided in an embodiment of the present invention, including:
preheating a cavity 1 and a heat exchange bent pipe 2;
a cavity is arranged in the preheating cavity 1; the top of the preheating cavity 1 is provided with at least one combustion cavity waste gas inlet pipe 3, and the combustion cavity waste gas inlet pipe 3 is communicated with the preheating cavity 1; the lower part of the preheating cavity 1 is provided with a combustion waste gas outlet 4;
the heat exchange bent pipe 2 is arranged in the cavity;
one end of the heat exchange elbow 2 is connected with a methanol water inlet 5, the other end of the heat exchange elbow 2 is connected with a methanol water outlet 6, and the methanol water inlet 5 is arranged at the lower part of the preheating cavity 1; and the methanol water outlet 6 is arranged at the upper part of the preheating cavity 1.
In the embodiment of the present invention, the preheating chamber includes an upper cover 11 and a bottom shell 12, and the upper cover and the bottom shell are assembled and sealed by a welding process.
The embodiment of the utility model provides a through let in burning chamber waste gas in preheating the cavity of cavity, let in the heat transfer return bend with the methanol-water, like this, burning chamber waste gas and methanol-water alright carry out the heat exchange, thereby reach the effect of preheating the methanol-water through the heat that utilizes burning chamber waste gas, in addition, the embodiment of the utility model provides a length of methanol-water pipe has been increased through the heat transfer return bend, thereby increased heat transfer area, and through preheating the cavity lower part with methanol-water inlet design, with methanol-water delivery port design preheating the cavity top, with waste gas air inlet design preheating the top of cavity and with waste gas outlet design preheating the lower part of cavity, thereby realized the heat exchange of cross mode. Through the technical means, the embodiment of the utility model provides an in limited space, increased heat transfer area to improve heat exchange efficiency, and then promoted the preheating effect to the methanol-water. The embodiment of the utility model provides a owing to need not to add a heating device that needs fuel cell system to provide the electric energy in addition, consequently, compare in prior art, the embodiment of the utility model provides a can reduce fuel cell system's internal consumption to can improve fuel cell system's output.
In order to reduce the flow speed of the waste gas and improve the heat exchange efficiency between the gas and the heat exchange elbow, please refer to fig. 3, a plurality of combustion waste gas baffles 7 are further arranged in the preheating cavity 1 of the embodiment of the present invention, and the plurality of combustion waste gas baffles 7 form a waste gas flow channel; the heat exchange elbow 2 is arranged in the waste gas flow channel.
In order to further increase the heat exchange area and improve the heat exchange efficiency between the waste gas of the combustion chamber and the methanol water, please refer to fig. 4-5, the heat exchange elbow 2 of the embodiment of the present invention is composed of a plurality of straight pipes 8 and a plurality of U-shaped pipes 9, and two adjacent straight pipes 8 are connected end to end through one U-shaped pipe 9 to form an S-shaped elbow; an air flow channel is formed between the S-shaped bent pipe and the inner wall of the preheating cavity 1.
Specifically, please refer to fig. 3 for further improving heat exchange efficiency, the embodiment of the present invention provides a methanol water preheating device, which is designed to:
a combustion waste gas baffle 7 is arranged between two adjacent straight pipes 8, one end of the combustion waste gas baffle 7 is connected with the inner wall of the preheating cavity 1, and the other end of the combustion waste gas baffle 7 is close to the U-shaped pipe 9;
a combustion waste gas baffle 7 is arranged between the straight pipe 8 closest to the upper part of the preheating cavity 1 and the upper part of the preheating cavity 1.
In order to make combustion exhaust's flow mild, reduce flow velocity to improve heat exchange efficiency, thereby promote heat transfer effect, the embodiment of the utility model provides a methanol-water preheating device still designs to be:
and a gas homogenizing channel is formed between the combustion waste gas baffle 7 closest to the top of the preheating cavity 1 and is communicated with the waste gas flowing channel.
Specifically, referring to fig. 3, the methanol water preheating device provided by the embodiment of the present invention is designed as follows:
the distance between each combustion baffle 7 and the adjacent straight pipe 8 is the same;
the distance between the combustion waste gas baffle 7 closest to the upper part of the preheating cavity 1 and the upper part of the preheating cavity 1 is larger than the distance between the combustion baffle 7 and the adjacent straight pipe 8.
In order to reduce the installation degree of difficulty and the installation cost of combustion exhaust baffle 7 in methanol-water preheating device, please refer to fig. 3, the embodiment of the utility model provides a methanol-water preheating device still designs to be:
all the combustion exhaust gas baffle plates 7 are parallel to each other.
In order to ensure when the heat of combustion chamber waste gas is not enough to preheat predetermined temperature to the methanol-water, the methanol-water still can preheat predetermined temperature, the utility model discloses methanol-water preheating device of embodiment still designs to: the outer wall of the preheating cavity is provided with an electric heating sheet 10.
In order to increase the heat exchange area, referring to fig. 6, the electric heating plate 10 is specifically disposed on the largest-area outer wall of the preheating cavity.
In order to be able to be in the time of predetermineeing to preheat and let in sufficient fuel chamber waste gas in the cavity 1, the utility model discloses methanol-water preheating device of embodiment still designs to:
and two combustion cavity waste gas inlet pipes 3 are arranged at the top of the preheating cavity 1.
For improve equipment's life and improve heat exchange efficiency, the embodiment of the utility model provides a methanol-water preheating device still designs to be:
the heat exchange elbow 2 is a stainless steel heat exchange elbow.
The above is the preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, without departing from the principle of the present invention, a plurality of improvements and decorations can be made, and these improvements and decorations also are regarded as the utility model adopts the heat exchange elbow to increase the length of the methanol water pipe, and increase the heat exchange area.
Claims (10)
1. The utility model provides a methanol-water preheating device which characterized in that includes:
preheating a cavity and a heat exchange bent pipe;
a cavity is arranged in the preheating cavity; the top of the preheating cavity is provided with at least one combustion cavity waste gas inlet pipe, and the combustion cavity waste gas inlet pipe is communicated with the preheating cavity; the lower part of the preheating cavity is provided with a combustion waste gas outlet;
the heat exchange bent pipe is arranged in the cavity;
one end of the heat exchange elbow is connected with a methanol water inlet, the other end of the heat exchange elbow is connected with a methanol water outlet, and the methanol water inlet is formed in the lower portion of the preheating cavity; the methanol water outlet is arranged at the upper part of the preheating cavity.
2. The methanol-water preheating device according to claim 1, wherein the preheating cavity is internally provided with a preheating chamber
A plurality of combustion exhaust gas baffles are arranged, the plurality of combustion exhaust gas baffles forming an exhaust gas flow passage; the heat exchange elbow is arranged in the waste gas flow channel.
3. The methanol-water preheating device according to claim 2, wherein a gas homogenizing passage is formed between the combustion exhaust gas baffle closest to the top of the preheating cavity and the top of the preheating cavity, and the gas homogenizing passage is communicated with the exhaust gas flow passage.
4. The methanol-water preheating device according to claim 2, wherein all the combustion exhaust gas baffles are parallel to each other.
5. The methanol-water preheating device according to claim 1, wherein an electric heating plate is arranged on the outer wall of the preheating cavity.
6. The methanol-water preheating device according to claim 1, wherein the heat exchange elbow is composed of a plurality of straight pipes and a plurality of U-shaped pipes, and two adjacent straight pipes are connected end to end through one U-shaped pipe to form an S-shaped elbow; an air flow channel is formed between the S-shaped bent pipe and the inner wall of the preheating cavity.
7. The methanol-water preheating device according to claim 6, further comprising a combustion waste gas baffle, wherein a combustion waste gas baffle is arranged between two adjacent straight pipes, one end of the combustion waste gas baffle is connected with the inner wall of the preheating cavity, and the other end of the combustion waste gas baffle is close to the U-shaped pipe;
and a combustion waste gas baffle is arranged between the straight pipe closest to the upper part of the preheating cavity and the upper part of the preheating cavity.
8. The methanol-water preheating device according to claim 7, wherein the distance between each combustion baffle plate and its adjacent straight pipe is the same;
the distance between the combustion baffle closest to the upper part of the preheating cavity and the upper part of the preheating cavity is larger than the distance between the combustion baffle and the adjacent straight pipe.
9. The methanol-water preheating device according to claim 5, wherein the electric heating sheet is disposed on the largest-area outer wall of the preheating chamber.
10. The methanol-water preheating device according to claim 1, wherein two combustion exhaust gas inlet pipes are arranged at the top of the preheating cavity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022485165.6U CN213950588U (en) | 2020-10-30 | 2020-10-30 | Methanol-water preheating device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202022485165.6U CN213950588U (en) | 2020-10-30 | 2020-10-30 | Methanol-water preheating device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112194099A (en) * | 2020-10-30 | 2021-01-08 | 摩氢科技有限公司 | Methanol-water preheating device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112194099A (en) * | 2020-10-30 | 2021-01-08 | 摩氢科技有限公司 | Methanol-water preheating device |
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