CN212559455U - Small-size hydrogenation station of methanol-water - Google Patents
Small-size hydrogenation station of methanol-water Download PDFInfo
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- CN212559455U CN212559455U CN202020808391.0U CN202020808391U CN212559455U CN 212559455 U CN212559455 U CN 212559455U CN 202020808391 U CN202020808391 U CN 202020808391U CN 212559455 U CN212559455 U CN 212559455U
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Abstract
The utility model discloses a small-size hydrogenation station of methanol-water, which belongs to the technical field of hydrogen production application, and comprises a fuel tank, a liquid inlet pump, a vaporization coil pipe, a reforming chamber, a combustion chamber, a purifier, a pressure relief device, a buffer tank and a compressor, wherein the fuel tank is connected with the inlet of the liquid inlet pump, the outlet of the liquid inlet pump of the compressor is connected with the vaporization coil pipe, the other end of the vaporization coil pipe is connected with the reforming chamber, the outlet of the reforming chamber of the compressor is connected with the purifier, the outlet of the purifier of the compressor is respectively connected with the pressure relief device through a flow dividing valve module, the buffer tank and the compressor, the vaporization coil pipe is arranged in the combustion chamber, the flow dividing valve module of the compressor comprises a three-way valve and a four-way valve, the outlet of the purifier of the compressor, the exhaust port of the compressor is connected with hydrogenation equipment, and the device has the advantages of low cost, small volume, convenience in hydrogen production and high safety.
Description
Technical Field
The utility model relates to a technical field is used in the hydrogen manufacturing, in particular to small-size hydrogenation station of methanol-water.
Background
Since hydrogen energy is listed in government work reports, the hydrogen energy industry has become the key point of economic concern in the market. The development of hydrogen energy is an important path for energy transformation in China. In addition, the hydrogen energy industry in various places such as the bamboo shoots in spring after rain is continuously improved in design and technology.
With the development of hydrogen energy, hydrogen energy is known as the most developed clean energy in the 21 st century, and particularly, hydrogen fuel cells are technically mature, so that the hydrogen energy is widely applied to automobiles, spaceflight, ships, unmanned planes, base stations and the like. However, the existing hydrogenation stations on the market are mainly oriented to fuel cell vehicles. According to 2016, which was released in 10 months, in China's hydrogen energy industry infrastructure development blue book (2016), 100 seats are achieved in 2020, and 1000 seats are achieved in 2030. The number of global hydrogen stations is 369 by 2018, the number of global hydrogen stations is 23 in China, the data accounts for about 6%, and the index is still Jiuniu-yi-mao at present when the data is completed.
The international hydrogen stations can be divided into two categories of hydrogen production from stations and hydrogen production from stations. Wherein the hydrogen production mode comprises the following steps:
1. hydrogen production by electrolytic hydrolysis: the hydrogen production has high purity, but the cost is higher;
2. hydrogen production by a water medium method: the hydrogen production cost is lower, the yield is large, the equipment is more, and the method is used in the ammonia synthesis plant;
3. hydrogen production from hot cracked petroleum synthesis gas and natural gas: the hydrogen yield of the petroleum thermal cracking byproduct is high, and the hydrogen is commonly used for hydrogen required by gasoline hydrogenation, petrochemical industry and chemical fertilizer plants;
4. freezing coke oven gas to produce hydrogen: the method is adopted in a few places;
5. electrolyzing the by-product hydrogen of the salt solution;
6. preparing hydrogen from a byproduct in the brewing industry;
7. reacting iron with steam to produce hydrogen: the quality is poor, and the method is basically eliminated;
8. hydrogen production by methanol water reforming: high efficiency, low cost and the like.
From the above, the hydrogen energy economy is based on hydrogen production, hydrogen storage and hydrogenation, and the method has the advantages of strict requirements on separation of links on a large-scale hydrogenation station, high cost and difficult profit, and is undoubtedly a second choice for selecting a low-cost method of producing hydrogen from methanol water as the input of a small-scale hydrogenation station, and the method with small potential safety hazard. Compared with the current small-sized equipment: hydrogenation is performed on equipment with relatively small hydrogen demand, such as a novel fuel cell forklift, a fuel cell unmanned aerial vehicle and a fuel cell base station, and the completion of the hydrogenation at a fixed-point large hydrogenation station is undoubtedly not desirable. For these small hydrogen-consuming equipments, the realization method of a methanol-water small hydrogen-adding station is undoubtedly key and is urgently needed in the market.
SUMMERY OF THE UTILITY MODEL
The utility model provides a small-size hydrogenation station of methanol-water reduces hydrogenation station construction cost and the degree of difficulty, realizes the miniaturization of hydrogenation station, solves the small-size equipment and stores up the difficult problem of hydrogen to improve the security of hydrogenation station.
In order to solve the technical problem, the utility model discloses a technical scheme does:
a small-sized hydrogen station for methanol water comprises a fuel tank, a liquid inlet pump for pumping fuel, a vaporization coil for vaporizing the fuel, a reforming chamber for reforming the fuel, a combustion chamber for providing a heat source for the vaporization coil and the reforming chamber, a purifier, a pressure relief device, a buffer tank and a compressor; the fuel tank is connected with an inlet of a liquid inlet pump, an outlet of the liquid inlet pump is connected with a vaporization coil, the other end of the vaporization coil is connected with a reforming chamber, an outlet of the reforming chamber is connected with a purifier, an outlet of the purifier is respectively connected with a pressure relief device, a buffer tank and a compressor through a flow divider module, and the vaporization coil is arranged in the combustion chamber; the flow dividing valve module comprises a three-way valve and a four-way valve, the outlet of the purifier is sequentially communicated with the three-way valve and the four-way valve, the other port of the three-way valve is connected with a pressure relief device, the other three ports of the four-way valve are respectively connected with a buffer tank, a compressor air inlet and a maintenance input valve, and the compressor air outlet is connected with hydrogenation equipment.
Preferably, the small-size hydrogenation station of methanol-water still includes the radiator that is used for combustor tail gas to handle and heat recovery, the radiator is connected with combustor tail gas exhaust port.
Preferably, the air inlet of the combustion chamber is connected with a blower, a liquid inlet valve is arranged between the fuel tank and the liquid inlet pump, a high-temperature filter is arranged between the reforming chamber and the purifier, an output valve is arranged between the four-way valve and the compressor, and a barometer is arranged between the four-way valve and the buffer tank.
Preferably, the fuel tank is provided with an external filling opening.
Adopt above-mentioned technical scheme's beneficial effect:
1. the hydrogen production process is simple; 2. the device has small structure volume, is convenient to move and can be set to be movable; 3. the investment cost is low, and the hydrogen supply requirements of small hydrogen equipment such as a fuel cell forklift, a fuel cell unmanned aerial vehicle, a fuel cell base station and the like can be met; 4. links such as hydrogen storage, transportation and the like do not exist, production can be carried out according to needs, and the safety is higher.
Drawings
Fig. 1 is a schematic structural diagram of an embodiment of the present invention.
In the figure, 1, an air inlet, 2, a blower, 3, a fuel tank, 4, a liquid adding device, 5, a liquid inlet valve, 6, a liquid inlet pump, 7, a gasification coil, 8, a combustion chamber, 9, a reforming chamber, 10, a radiator, 11, a high-temperature filter, 12, a purifier, 13, an electronic three-way valve, 14, a pressure relief device, 15, an output valve, 16, a compressor, 17, a four-way valve, 18, a gas pressure meter, 19, hydrogenation equipment, 20, a buffer tank, 21 and a maintenance input valve are arranged.
Detailed Description
The following describes the present invention with reference to the accompanying drawings. It should be noted that the description of the embodiments is provided to help understanding of the present invention, but the present invention is not limited thereto. In addition, the technical features related to the embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.
As shown in the figures, the utility model provides a small-size hydrogenation station of methanol-water, including fuel tank 3 that is used for storing reaction fuel, the feed liquor pump 6 that is used for pumping fuel, the vaporization coil that is used for fuel vaporization, reforming chamber 9 that fuel carries out reforming reaction, be used for providing the combustion chamber 8 of heat source for vaporization coil and reforming chamber 9, clarifier 12, pressure relief device 14, buffer tank 20, compressor 16;
the fuel tank is connected with the inlet of a liquid inlet pump 6, the outlet of the liquid inlet pump 6 is connected with a vaporization coil, the other end of the vaporization coil is connected with a reforming chamber 9, the outlet of the reforming chamber 9 is connected with a purifier 12, the outlet of the purifier 12 is respectively connected with a pressure relief device 14, a buffer tank 20 and a compressor 16 through a flow divider module, and the vaporization coil is arranged in a combustion chamber 8;
the flow divider module comprises a three-way valve and a four-way valve 17 for gas flow division, the three-way valve is an electronic three-way valve 13, the outlet of the purifier 12 is sequentially communicated with the three-way valve and the four-way valve 17, the other port of the three-way valve is connected with the pressure relief device 14, the other three ports of the four-way valve 17 are respectively connected with the buffer tank 20, the air inlet of the compressor 16 and the maintenance input valve 21, and the air outlet of the compressor.
When the equipment is in failure or is in cold start for the first time, namely the system can not normally produce hydrogen, the system components, particularly the purifier 12, can be maintained by inputting hydrogen with certain pressure through the maintenance input valve 21.
Further, the small-size hydrogenation station of methanol-water still includes radiator 10 that is used for 8 tail gas processing of combustion chamber and heat recovery, and radiator 10 is connected with 8 tail gas discharge ports of combustion chamber.
Further, the air inlet 1 of the combustion chamber 8 is connected with the blower 2, wherein the blower 2 has two functions, namely, the function of providing enough oxygen for the combustion chamber 8 when the equipment works so as to achieve the condition of sufficient combustion, and the function of providing a certain air inlet amount to reduce the working temperature of the reforming chamber 9 and the purifier 12 when the temperature of the reforming chamber 9 is overhigh;
a liquid inlet valve 5 is arranged between the fuel tank 3 and the liquid inlet pump 6, a high-temperature filter 11 is arranged between the reforming chamber 9 and the purifier 12, the high-temperature filter 11 is used for filtering the hydrogen rich generated by the reaction in the reforming chamber 9 roughly and badly to realize the filtering of dust or particles, the reason for using the high-temperature filter 11 is that the temperature of the generated hydrogen rich is about 400 ℃, rear-end equipment needs to have good high-temperature resistant conditions, the purifier 12 filters the gas from which the dust or particles are filtered after passing through the high-temperature filter 11, namely the generated hydrogen rich uses the characteristics of a palladium membrane, only hydrogen molecules permeate to purify, and the purity can reach more than 99.95%;
an output valve 15 is provided between the four-way valve 17 and the compressor 16, and an air pressure gauge 18 is provided between the four-way valve 17 and a buffer tank 20.
Further, fuel tank 3 is provided with external filling opening, and external filling opening is connected with liquid feeding device 4, and when fuel was less than the lower limit value, the staff was required to carry out the interpolation of reaction fuel through liquid feeding device 4, adds the methanol-water that has proportioned promptly.
The specific working principle is as follows:
in the hydrogen production process, when the pressure of a barometer 18 is lower than 15psi, the equipment is automatically switched from a hot standby state to an operating state, at the moment, the system performs ignition operation in a combustion chamber 8, meanwhile, an air blower 2 sends oxygen into the combustion chamber 8 through an air inlet 1 of the combustion chamber 8, a liquid inlet valve 5 is opened by the system, methanol fuel from a fuel tank 3 is pumped by a liquid inlet pump 6, the methanol fuel enters a vaporization coil pipe after heat exchange and is completely gasified and then reacts in a reforming chamber 9, a part of produced hydrogen-rich gas is used for combustion, redundant tail gas and heat are processed by a radiator 10, the other part of the hydrogen-rich gas is subjected to coarse gas filtration through a high-temperature filter 11, dust particles are filtered, then the hydrogen-rich gas is converted into pure hydrogen with the purity of more than 99.95% through a purifier 12, and then the pure hydrogen is conveyed. Meanwhile, the pressure of the buffer tank 20 is monitored through the barometer 18, once the pressure of the barometer 18 reaches 25psi, the system is automatically switched to a hot standby state from an operating state, the system closes the corresponding electromagnetic valve, the liquid inlet pump 6 and the air blower 2 are closed, meanwhile, the electronic three-way valve 13 is switched to the pressure relief device 14, the system stops producing hydrogen, redundant gas of the purifier 12 is discharged through the pressure relief device 14, the purifier 12 is prevented from outputting negative pressure when the equipment does not work, and the three-way valve is opened to the position under the default condition when the system does not work.
In the hydrogenation process, after the system detects that the hydrogenation equipment 19 is connected, the output valve 15 is opened, and the purified pure hydrogen passes through the compressor 16 after the system works, so that the pure hydrogen with low gas pressure is converted into high-pressure hydrogen to be supplied to a hydrogen storage tank of the equipment, and the aim of hydrogenation is fulfilled. The whole process has no links of large pressure output and high difficulty.
The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the described embodiments. It will be apparent to those skilled in the art that various changes, modifications, substitutions and alterations can be made in the embodiments without departing from the principles and spirit of the invention, and the scope of the invention is to be accorded the full scope of the claims.
Claims (4)
1. A small-sized methanol water hydrogenation station is characterized by comprising a fuel tank (3), a liquid inlet pump (6) for pumping fuel, a vaporization coil for vaporizing the fuel, a reforming chamber (9) for reforming the fuel, a combustion chamber (8) for providing a heat source for the vaporization coil and the reforming chamber (9), a purifier (12), a pressure relief device (14), a buffer tank (20) and a compressor (16);
the fuel tank is connected with an inlet of a liquid inlet pump (6), an outlet of the liquid inlet pump (6) is connected with a vaporization coil, the other end of the vaporization coil is connected with a reforming chamber (9), an outlet of the reforming chamber (9) is connected with a purifier (12), an outlet of the purifier (12) is respectively connected with a pressure relief device (14), a buffer tank (20) and a compressor (16) through a flow divider module, and the vaporization coil is arranged in the combustion chamber (8);
the flow dividing valve module comprises a three-way valve and a four-way valve (17), the outlet of the purifier (12) is sequentially communicated with the three-way valve and the four-way valve (17), the other port of the three-way valve is connected with a pressure relief device (14), the other three ports of the four-way valve (17) are respectively connected with a buffer tank (20), a compressor (16) air inlet and a maintenance input valve (21), and an air outlet of the compressor (16) is connected with hydrogenation equipment (19).
2. The small methanol-water hydrogenation station according to claim 1, further comprising a radiator (10) for treating the tail gas of the combustion chamber (8) and recovering heat, wherein the radiator (10) is connected with a tail gas discharge port of the combustion chamber (8).
3. A small methanol-water hydrogenation station according to claim 1, wherein the air inlet (1) of the combustion chamber (8) is connected with a blower (2), a liquid inlet valve (5) is arranged between the fuel tank (3) and the liquid inlet pump (6), a high temperature filter (11) is arranged between the reforming chamber (9) and the purifier (12), an output valve (15) is arranged between the four-way valve (17) and the compressor (16), and a gas pressure gauge (18) is arranged between the four-way valve (17) and the buffer tank (20).
4. The small methanol-water hydrogenation station according to claim 1, wherein the fuel tank (3) is provided with an external filler.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN202020808391.0U CN212559455U (en) | 2020-05-14 | 2020-05-14 | Small-size hydrogenation station of methanol-water |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202020808391.0U CN212559455U (en) | 2020-05-14 | 2020-05-14 | Small-size hydrogenation station of methanol-water |
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| CN212559455U true CN212559455U (en) | 2021-02-19 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111453698A (en) * | 2020-05-14 | 2020-07-28 | 广东能创科技有限公司 | Small-size hydrogenation station of methanol-water |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111453698A (en) * | 2020-05-14 | 2020-07-28 | 广东能创科技有限公司 | Small-size hydrogenation station of methanol-water |
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