Commercial rapid hydrogen production equipment
By introducing a heat exchange device into the methanol hydrogen production equipment, the heat circulation between the hydrogen production process and the purifier purification process is realized, and the problem of low heat recycling efficiency in traditional methanol hydrogen production is solved, which improves economic benefits and reduces the cost of hydrogen production.
Patent Information
- Application Number
- CN202421701639.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-18
- Publication Date
- 2025-06-10
- Estimated Expiration
- 2034-07-18
AI Technical Summary
The heat recycling efficiency in traditional methanol hydrogen production is low, resulting in a decrease in economic benefits and an increase in hydrogen production costs.
A commercially available rapid hydrogen production equipment is designed, and heat circulation between the hydrogen production process and the purifier purification process is realized by setting a heat exchange device between the raw material thermal cracking reaction device and the purifier.
It improves the heat recycling rate, enhances the economic value of hydrogen production, and reduces the cost of hydrogen production.
Smart Images
Figure CN222956369U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of hydrogen production, in particular to a commercial rapid hydrogen production device. Background Art
[0002] Hydrogen production refers to the process of producing hydrogen. Currently, hydrogen is generally produced through electrolysis of water, coal gas, and methanol hydrogen production, etc. Methanol hydrogen production is to mix methanol and water in a certain proportion to form an alcohol-water mixture, and then thermally crack the alcohol-water mixture to produce hydrogen.
[0003] Traditional methanol hydrogen production is to send the alcohol-water mixture into a reactor for reaction, and then send the produced hydrogen into a purifier for purification. At the same time, the reactor is connected to a heat exchanger, and only the heat in the hydrogen production process is recycled, while the process of purifying hydrogen does not participate in the heat cycle. As a result, the heat recycling efficiency in methanol hydrogen production is relatively low, and the incomplete heat recycling is likely to lead to a reduction in the economic benefits of methanol hydrogen production and an increase in the hydrogen production cost. Summary of the Utility Model
[0004] In order to solve the problem of relatively low heat recycling efficiency in methanol hydrogen production in the background art, the utility model provides a commercial rapid hydrogen production device.
[0005] The technical solution of the utility model is: it includes a protective outer cover, a second pump body, and a heat exchange device.
[0006] Inside the protective outer cover, there is a raw material thermal cracking reaction device for thermally cracking the alcohol-water mixture to produce hydrogen. The raw material thermal cracking reaction device includes a raw material inlet, a gas discharge port, and a gas return port.
[0007] On the upper surface of the protective outer cover, there is a feed valve port, which is connected to the raw material inlet of the raw material thermal cracking reaction device through a pipeline.
[0008] Inside the protective outer cover, there is a purifier, which includes an air inlet, a hydrogen output port, and a separated gas output port. The air inlet of the purifier is connected to the gas discharge port of the raw material thermal cracking reaction device through a pipeline.
[0009] The inlet end of the second pump body is connected to the hydrogen output port of the purifier through a pipeline. The outlet end of the second pump body is connected to a throttle valve through a pipeline, and the outlet end of the throttle valve is connected to a discharge valve through a pipeline. The discharge valve is located outside the protective outer cover.
[0010] The heat exchange device is divided into a heat release end and a heat absorption end. The heat release end is arranged inside the raw material thermal cracking reaction device, and the heat absorption end is located inside the purifier. The heat absorption end and the heat release end are connected through a pipeline.
[0011] The separation gas outlet of the purifier and the gas return port of the raw material pyrolysis reaction device are connected through a return pipe.
[0012] Preferably, the heat exchange device includes a first heat exchanger located inside the raw material pyrolysis reaction device. A heat exchange port of the first heat exchanger is connected with an exchange pipe. The lower end of the exchange pipe is fixedly connected with a second heat exchanger located inside the purifier. A driving pump is provided on the exchange pipe.
[0013] Preferably, the raw material pyrolysis reaction device includes a raw material cylinder, a metering pump, and a reactor. The feeding end of the raw material cylinder is communicated with a feeding valve port through a pipeline. The discharging end of the raw material cylinder is communicated with the feeding end of the metering pump through a pipeline. The discharging end of the metering pump is communicated with the heat release port of the first heat exchanger through a pipeline. The discharging end of the first heat exchanger is communicated with the feeding end of the reactor.
[0014] Preferably, a first driving device is provided on the pipeline connecting the purifier and the raw material pyrolysis reaction device.
[0015] Preferably, a control panel is provided on the protective outer cover. The control panel is connected to the first driving device, the second pump body, the third pump body, the metering pump, and the purifier for control.
[0016] Preferably, an avoidance groove is formed on the front side surface of the protective outer cover. The position of the avoidance groove corresponds to the throttle valve before and after. A rotating door is provided in the avoidance groove, and the rotating door can rotate back and forth.
[0017] Preferably, universal wheels are provided on the lower surface of the protective outer cover.
[0018] Advantages of the present utility model: This commercial rapid hydrogen production device can perform heat circulation between the hydrogen production process and the purification process of the purifier through the heat exchange device, fully enabling the heat circulation process participated by these two heat exchange process components, improving the utilization rate of heat circulation, and increasing the economic value of its hydrogen production. Description of the Drawings
[0019] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present utility model. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.
[0020] Figure 1 It is a schematic diagram of the main structure of Embodiment 1;
[0021] Figure 2 For Figure 1 The front view partial sectional structure schematic diagram of
[0022] Figure 3 is Figure 1 internal partial structure schematic diagram;
[0023] Figure 4 is Figure 3 heat exchange device structure schematic diagram.
[0024] In the figure, 1 is the protective cover, 2 is the universal wheel, 3 is the raw material thermal cracking reaction device, 31 is the raw material cylinder, 32 is the metering pump, 33 is the reactor, 4 is the first driving device, 5 is the purifier, 6 is the second pump body, 7 is the throttle valve, 8 is the discharge valve, 9 is the revolving door, 10 is the feed valve port, 11 is the return pipe, 12 is the third pump body, 13 is the heat exchange device, 131 is the first heat exchanger, 132 is the exchange pipe, 133 is the second heat exchanger, 14 is the control panel. Specific embodiments
[0025] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.
[0026] Embodiment 1: The purpose of this embodiment is to propose a commercial rapid hydrogen production device, including a protective cover 1, a second pump body 6 and a heat exchange device 13,
[0027] According to Figures 1 to 4 shown, the raw material thermal cracking reaction device 3 is arranged inside the protective cover 1, and the raw material thermal cracking reaction device 3 includes a raw material inlet, a gas discharge port and a gas return port.
[0028] The purifier 5 is arranged inside the protective cover 1. The purifier 5 has functions of gas-liquid separation, deoxidation, drying and hydrogen cooling. The purifier 5 is used to purify the gas entering the inside of the purifier 5, and divide the gas into hydrogen and other impurity gases. The impurity gases are mostly unreacted vaporized alcohol-water mixture and carbon monoxide. The purifier 5 includes an air inlet, a hydrogen output port and a separated gas output port.
[0029] The upper surface of the protective cover 1 is provided with a feed valve port 10, and the feed valve port 10 is communicated with the raw material inlet of the raw material thermal cracking reaction device 3 through a pipeline.
[0030] The heat exchange device 13 includes a first heat exchanger 131 which is located inside the raw material thermal cracking reaction device 3. A heat exchange port of the first heat exchanger 131 is connected with an exchange pipe 132. The lower end of the exchange pipe 132 is fixedly connected with a second heat exchanger 133 which is located inside the purifier 5. The second heat exchanger 133 can be a coil heat exchanger. The purifier 5 includes a hydrogen cooler, and the second heat exchanger 133 is arranged inside the hydrogen cooler. When cooling hydrogen, the second heat exchanger 133 absorbs the heat released by hydrogen. A driving pump is arranged on the exchange pipe 132, and the driving pump is used to drive the heat exchange medium to flow between the first heat exchanger 131 and the second heat exchanger 133.
[0031] The raw material thermal cracking reaction device 3 includes a raw material cylinder 31, a metering pump 32 and a reactor 33. The feeding end of the raw material cylinder 31 is communicated with the feeding valve port 10 through a pipeline. The raw material cylinder 31 can be a storage cylinder with a mixing and stirring function. The discharging port of the raw material cylinder 31 is communicated with the feeding end of the metering pump 32 through a pipeline. The discharging end of the metering pump 32 is communicated with the heat release port of the first heat exchanger 131 through a pipeline. The discharging end of the first heat exchanger 131 is communicated with the feeding end of the reactor 33. The first heat exchanger 131 can be a plate heat exchanger. The heat exchange medium in the second heat exchanger 133 is sent into the first heat exchanger 131 under the action of the driving pump after absorbing heat. When the alcohol-water mixture enters the first heat exchanger 131, it exchanges heat with the heat exchange medium, and the alcohol-water mixture is preheated. A catalyst is arranged in the reactor 33, and the preheated alcohol-water mixture is sent into the reactor 33, and hydrogen is generated under the action of the catalyst and temperature.
[0032] A pipeline is used to connect the air inlet of the purifier 5 and the gas discharge port of the reactor 33. A first driving device 4 is arranged on the pipeline connecting the air inlet of the purifier 5 and the gas discharge port of the reactor 33. The first driving device 4 can be a suction pump.
[0033] The feeding end of the second pump body 6 is communicated with the hydrogen output port of the purifier 5 through a pipeline. The discharging end of the second pump body 6 is communicated with a throttle valve 7 through a pipeline. The discharging end of the throttle valve 7 is connected with a discharging valve 8 through a pipeline. The discharging valve 8 is located outside the protective cover 1. An avoidance groove is formed on the front side surface of the protective cover 1, and the position of the avoidance groove corresponds to that of the throttle valve 7 before and after. A rotating door 9 is arranged in the avoidance groove, and the rotating door 9 can rotate back and forth. The staff can open the rotating door 9, so as to facilitate the adjustment of the throttle valve 7, thereby adjusting the discharging rate of hydrogen. At the same time, when the equipment stops working, the second pump body 6 can perform active extraction to extract the residual gas in the purifier 5, ensuring that there is no residual hydrogen inside the equipment after it stops working and guaranteeing the safety of the equipment.
[0034] The separated gas outlet of the purifier 5 is communicated with the gas reflux port on the reactor 33 through a reflux pipe 11, and a third pump body 12 is provided on the reflux pipe. The third pump body 12 is used to pump the gas separated in the purifier 5 into the reactor 33.
[0035] A control panel 14 is provided on the protective cover 1. The control panel 14 is connected to the first driving device 4, the second pump body 6, the third pump body 12, the metering pump 32 and the purifier 5 for control. There is a gateway device on the control panel 14, so that the device can be controlled online through networking.
[0036] Universal wheels 2 are provided on the lower surface of the protective cover 1.
[0037] Working principle: During use, first, raw materials such as water and methanol are sent into the raw material cylinder 31 through the feed valve port 10. The raw material cylinder 31 mixes them to form an alcohol-water mixture, and then the metering pump 32 extracts the alcohol-water mixture in proportion and sends it into the first heat exchanger 131, and then it is sent from the first heat exchanger 131 into the reactor 33. The reactor 33 has its own heating function, and at the same time, under the action of a catalyst, the alcohol-water mixture generates hydrogen. Then, under the drive of the first driving device 4, the hydrogen is sent into the purifier 5. The purifier 5 sends the cooled hydrogen into the throttle valve 7 through the third pump body 12. The throttle valve 7 can adjust the output rate of hydrogen.
[0038] In this production process, the temperature of the hydrogen just entering the hydrogen cooler is relatively high. The hydrogen is absorbed by the second heat exchanger 133 provided in the hydrogen cooler. The heat exchange medium in the second heat exchanger 133 absorbs heat and rises in temperature, and then is sent into the first heat exchanger 131 by a driving pump. In the first heat exchanger 131, the alcohol-water mixture sent by the metering pump 32 exchanges heat with the heated heat exchange medium. After the heat exchange, the heat of the heat exchange medium is absorbed by the alcohol-water mixture, causing the heat exchange medium to cool down, and then it is sent back to the first heat exchanger 131 by the driving pump. Thus, heat can be recycled in the two reactions of hydrogen cooling and alcohol-water mixture preheating, so as to efficiently utilize heat, improve the heat recycling efficiency, increase the economic value of hydrogen production, and the device is easy to move, can be controlled online through the gateway during device production, and actively empties the residual hydrogen inside when the production stops, ensuring that there is no residual hydrogen inside after stopping.
[0039] For those skilled in the art, it is obvious that the present utility model is not limited to the details of the above-mentioned exemplary embodiments, and the present utility model can be implemented in other specific forms without departing from the spirit or basic characteristics of the present utility model. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-restrictive. The scope of the present utility model is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be embraced within the present utility model. Any reference signs in the claims should not be construed as limiting the claims involved.
Claims
1. A commercial rapid hydrogen production device, characterized in that: It comprises a protective outer cover (1), a second pump body (6) and a heat exchange device (13), A raw material thermal cracking reaction device (3) is arranged inside the protective outer cover (1). The raw material thermal cracking reaction device (3) is used to heat-source crack the alcohol-water mixture to produce hydrogen. The raw material thermal cracking reaction device (3) comprises a raw material inlet, a gas outlet and a gas reflux port. A feed valve port (10) is provided on the upper surface of the protective outer cover (1), and the feed valve port (10) is connected to a raw material inlet of a raw material thermal cracking reaction device (3) through a pipeline; A purifier (5) is provided inside the protective outer cover (1), and the purifier (5) comprises an air inlet, a hydrogen outlet, and a separated gas outlet. The air inlet of the purifier (5) is connected to the gas outlet of the raw material thermal cracking reaction device (3) through a pipeline; The feed end of the second pump body (6) is connected to the hydrogen outlet of the purifier (5) through a pipeline, the discharge end of the second pump body (6) is connected to the throttle valve (7) through a pipeline, and the discharge end of the throttle valve (7) is connected to the discharge valve (8) through a pipeline, and the discharge valve (8) is located outside the protective cover (1); The heat exchange device (13) is divided into a heat release end and a heat absorption end, the heat release end is arranged inside the raw material thermal cracking reaction device (3), and the heat absorption end is located inside the purifier (5), and the heat absorption end and the heat release end are connected by a pipeline; The separated gas output port of the purifier (5) and the gas reflux port of the raw material thermal cracking reaction device (3) are connected via a reflux pipe (11).
2. A commercial fast hydrogen production equipment according to claim 1, characterized in that: The heat exchange device (13) comprises a first heat exchanger (131), the first heat exchanger (131) is located inside the raw material thermal cracking reaction device (3), the heat exchange port of the first heat exchanger (131) is connected to an exchange tube (132), the lower end of the exchange tube (132) is fixedly connected to a second heat exchanger (133), the second heat exchanger (133) is located inside the purifier (5), and a driving pump is provided on the exchange tube (132).
3. A commercial fast hydrogen production equipment according to claim 2, characterized in that: The raw material thermal cracking reaction device (3) comprises a raw material barrel (31), a metering pump (32) and a reactor (33); the feed end of the raw material barrel (31) is connected to the feed valve port (10) via a pipeline; the discharge port of the raw material barrel (31) is connected to the feed end of the metering pump (32) via a pipeline; the discharge end of the metering pump (32) is connected to the heat release port of the first heat exchanger (131) via a pipeline; and the discharge end of the first heat exchanger (131) is connected to the feed end of the reactor (33).
4. A commercial fast hydrogen production equipment according to claim 3, characterized in that: A first driving device (4) is provided on the pipeline connecting the purifier (5) and the raw material thermal cracking reaction device (3).
5. A commercial fast hydrogen production equipment according to claim 3, characterized in that: The separated gas output port of the purifier (5) is connected to the gas reflux port on the reactor (33) via a reflux pipe (11), and a third pump body (12) is provided on the reflux pipe. The third pump body (12) is used to pump the separated gas in the purifier (5) into the reactor (33).
6. A commercial fast hydrogen production equipment according to claim 5, characterized in that: The protective outer cover (1) is provided with a control panel (14), and the control panel (14) is control-connected to the first drive device (4), the second pump body (6), the third pump body (12), the metering pump (32) and the purifier (5).
7. A commercial fast hydrogen production equipment according to claim 1, characterized in that: The front side of the protective outer cover (1) is provided with an escape groove, the position of which corresponds to the front and rear of the throttle valve (7), and a revolving door (9) is provided in the escape groove, and the revolving door (9) can be rotated forward and backward.
8. A commercial fast hydrogen production equipment according to claim 1, characterized in that: The lower surface of the protective outer cover (1) is provided with universal wheels (2).