Single-cylinder methanol reforming reaction device
By incorporating fins and external coils in the methanol reforming reactor, the problem of temperature non-uniformity was solved, the catalyst reaction efficiency and hydrogen production were improved, combustion performance and thermal energy utilization were optimized, and the economy and practicality of the hydrogen production system were enhanced.
Patent Information
- Application Number
- CN202422963598.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-03
- Publication Date
- 2025-12-12
- Estimated Expiration
- 2034-12-03
AI Technical Summary
During the methanol reforming reaction, uneven temperature distribution leads to a decrease in catalyst reaction efficiency, affecting hydrogen production and the economy and practicality of the hydrogen production system.
A single-tube methanol reforming reactor is designed. By setting uniformly distributed fins and external coils on the outside of the reaction chamber, the fins absorb the high-temperature gas generated by the combustion unit, ensuring that the catalyst is at the optimal reaction temperature. The fins and external coils also improve heat exchange efficiency and temperature uniformity.
It improves the reaction efficiency of the catalyst, ensures uniform reaction temperature, increases hydrogen production and overall reaction efficiency, and optimizes combustion performance and thermal energy utilization.
Smart Images
Figure CN223654982U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the field of methanol reforming equipment, especially a single cylinder type methanol reforming reaction device. BACKGROUND
[0002] At present, in the process of carrying out methanol reforming reaction to prepare hydrogen, the high-temperature flame generated in the reaction process will spread upward along the reaction equipment, causing the temperature of the top end region of the equipment to rise significantly. This non-uniformity of temperature distribution makes the temperature of the upper end region of the reaction equipment higher, while the temperature of the lower end region is relatively lower. Since the activity of the catalyst depends largely on the temperature condition, the catalyst at the lower end of the reaction equipment will have a significantly reduced reaction efficiency due to the lower temperature, and even the catalyst may hardly react. This non-uniformity of temperature distribution has a very adverse effect on the efficiency of the entire hydrogen production process, because the incomplete reaction will lead to a reduction in hydrogen production, thereby affecting the economy and practicability of the entire hydrogen production system. SUMMARY
[0003] The technical problem to be solved by the utility model is to provide a single cylinder type methanol reforming reaction device to solve the problem of uneven catalyst reaction.
[0004] The technical scheme for solving the above technical problem is as follows: a single cylinder type methanol reforming reaction device, comprising a base, a combustion unit, a reforming reaction bin, an inner coil and an outer shell, the base, the combustion unit and the reforming reaction bin are connected in sequence from top to bottom, the outer shell is sealed and sleeved on the outer side of the reforming reaction bin, the reforming reaction bin is sleeved on the outer side of the inner coil, the reforming reaction bin is connected with the inner coil passage, and fins uniformly distributed are fixedly arranged between the outer shell and the reforming reaction bin.
[0005] Further, the fins extend from the middle upper part to the bottom of the outer side surface of the reforming reaction bin.
[0006] Further, an outer coil is arranged on the upper part of the outer side surface of the reforming reaction bin, and the outer coil is in communication with the inner coil.
[0007] Further, the reforming reaction bin comprises an outer cylinder, an inner cylinder, a top cover and a bottom disc, the outer cylinder is sleeved on the outer side of the inner cylinder, the top cover and the bottom disc respectively block the upper and lower ends of the whole formed by the outer cylinder and the inner cylinder to form a cylindrical containing space, an upper partition plate and a lower partition plate are sleeved on the outer side surface of the inner cylinder, the inner coil passes through the inner cylinder and is in communication with the containing space, and a hydrogen outlet is arranged on the top cover.
[0008] Further, the combustion unit comprises a flame combustion component and a flameless combustion component, one end of the flame combustion component is detachably connected with the reforming reaction chamber, and the other end of the flame combustion component is detachably connected with the base through the flameless combustion component.
[0009] Further, the flame combustion component comprises a flame cover, a spray head, an ignition needle, a small coil pipe and an air duct plate, the air duct plate is arranged at the lower end inside the flame cover, the spray head is fixedly arranged inside the flame cover, the small coil pipe is arranged above the spray head and communicates with the spray head, the ignition needle is embedded on the flame cover, one end of the flame cover is detachably connected with the reforming reaction chamber, and the other end of the flame cover is detachably connected with the flameless combustion component.
[0010] Further, the flameless combustion component comprises a flameless cover and a combustion end cover, the combustion end cover is fixedly arranged at the bottom of the flameless cover, the upper part of the flameless cover is detachably connected with the flame combustion component, and the lower part of the combustion end cover is detachably connected with the base.
[0011] The utility model provides a single cylinder type methanol reforming reaction device, including base, combustion unit, reforming reaction chamber, inner coil pipe and shell, the base, combustion unit and reforming reaction chamber are connected in proper order from top to bottom, the shell is sealed and is equipped with in the reforming reaction chamber outside, the reforming reaction chamber is equipped in the inner coil pipe outside, the reforming reaction chamber is connected with the inner coil pipe passway, and the shell is fixedly arranged with the even distribution fin between the reforming reaction chamber. BRIEF DESCRIPTION OF DRAWINGS
[0012] Figure 1 It is whole structure schematic diagram of the utility model a single cylinder type methanol reforming reaction device;
[0013] Figure 2 It is reforming reaction chamber structure schematic diagram of the utility model a single cylinder type methanol reforming reaction device;
[0014] Figure 3 It is flame combustion component structure schematic diagram of the utility model a single cylinder type methanol reforming reaction device;
[0015] Figure 4 It is flameless combustion component structure schematic diagram of the utility model a single cylinder type methanol reforming reaction device;
[0016] Figure 5 The utility model discloses a single cylinder type methanol reforming reaction device fin arrangement schematic view.
[0017] In the drawings, the component list represented by each sign is as follows:
[0018] 1, base, 2, combustion unit, 201, flame combustion component, 2011, flame cover, 2012, spray head, 2013, ignition needle, 2014, small coil, 2015, air duct plate, 202, flameless combustion component, 2021, flameless cover, 2022, combustion end cover, 3, reforming reaction bin, 301, outer cylinder, 302, inner cylinder, 303, top cover, 304, bottom disc, 305, upper baffle, 306, lower baffle, 4, shell, 5, fin. DETAILED DESCRIPTION
[0019] The principles and characteristics of the utility model are described below in combination with the drawings, and the examples are only used for explaining the utility model and not for limiting the range of the utility model.
[0020] In the description of the utility model, it is understood that the orientation or position relationship indicated by the terms "upper", "lower", "center", "inner", "outer", "top", "bottom" and the like is based on the orientation or position relationship shown in the drawings, and is only for the convenience of describing the utility model and simplifying the description, and therefore cannot be understood as limiting the device or element to have a specific orientation, to be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the utility model.
[0021] In the description of the utility model, it is understood that, unless otherwise explicitly specified and limited, the terms "mounting", "connection", "connecting" should be understood broadly, for example, can be fixed connection, can also be detachable connection, or integrally connected, can be mechanical connection, can also be electrical connection, can be directly connected, can also be indirectly connected through intermediate medium, can be the communication inside two elements. For ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.
[0022] As Figures 1-5As shown, this utility model provides a single-cylinder methanol reforming reactor, including a base 1, a combustion unit 2, a reforming reaction chamber 3, an inner coil, and an outer shell 4. The base 1, combustion unit 2, and reforming reaction chamber 3 are connected sequentially from top to bottom. The outer shell 4 is sealed and fitted over the outside of the reforming reaction chamber 3, and the reforming reaction chamber 3 is fitted over the outside of the inner coil. The reforming reaction chamber 3 is connected to the inner coil via a passageway. Uniformly distributed fins 5 are fixedly arranged between the outer shell 4 and the reforming reaction chamber 3. In this way, the combustion unit 2 preheats the methanol-water mixture in the inner coil during combustion to atomize it, allowing the atomized methanol-water mixture to fully react after entering the reforming reaction chamber 3. Furthermore, through the arrangement of the fins 5, the high-temperature gas generated during combustion of the combustion unit 2 is absorbed by the fins 5, causing the catalyst in the reforming reaction chamber 3 at the location of the fins 5 to reach the optimal reaction temperature, thereby improving the efficiency of hydrogen production from the catalyst reaction.
[0023] The single-cylinder methanol reforming reaction device of this invention, such as Figures 1-5 As shown, based on the previously described technical solution, the fins 5 can also extend from the upper-middle part of the outer surface of the reforming reaction chamber 3 to the bottom. This design, where the fins 5 extend from the upper-middle part of the outer surface of the reforming reaction chamber 3 to the bottom, effectively improves heat exchange efficiency. Since hot air typically rises, placing the fins 5 in the upper-middle part of the reforming reaction chamber 3 allows for better capture of the rising hot air, thereby increasing the heat exchange area. As the fins 5 extend downwards to the bottom, they can further utilize the cool air at the bottom of the reaction chamber for heat exchange, ensuring a more uniform temperature throughout the entire reaction chamber. This structure not only improves the utilization rate of thermal energy but also helps maintain a stable temperature within the reaction chamber, thereby optimizing the reforming reaction, improving reaction efficiency, and enhancing product quality.
[0024] The single-cylinder methanol reforming reaction device of this invention, such as Figures 1-5 As shown, based on the previously described technical solution, an additional option is to have an outer coil installed on the upper part of the outer surface of the reforming reaction chamber 3, which is connected to the inner coil. In this way, during combustion in the combustion unit 2, high-temperature gas will flow from the central channel of the reforming reaction chamber 3 to its outer surface. By carefully designing and installing the outer coil, the heat absorption time of the methanol-water mixture during its flow can be effectively extended. This design allows the methanol-water mixture to fully absorb heat, ensuring that it is fully atomized during combustion. This full atomization not only helps improve combustion efficiency but also ensures a more stable and uniform combustion process, thereby improving overall combustion performance and effect.
[0025] The single-cylinder methanol reforming reaction device of this invention, such as Figures 1-5As shown, on the basis of the technical solutions described in the foregoing, it can also be that: the reforming reaction chamber 3 comprises an outer cylinder 301, an inner cylinder 302, a top cover 303 and a bottom disc 304, the outer cylinder 301 is sleeved outside the inner cylinder 302, the top cover 303 and the bottom disc 304 respectively block the upper and lower ends of the whole formed by the outer cylinder 301 and the inner cylinder 302 to form a columnar containing space, the outer side surface of the inner cylinder 302 is sleeved with an upper baffle 305 and a lower baffle 306, the inner coil pipe passes through the inner cylinder 302 and communicates with the containing space, and the top cover 303 is provided with a hydrogen outlet. In this way, since the reforming reaction chamber 3 needs to be filled with catalyst, but the methanol water is easy to take away the catalyst in the flow process, the upper baffle 305 and the lower baffle 306 are arranged on the outer side surface of the inner cylinder 302, so that the catalyst is limited by the upper baffle 305 and the lower baffle 306 and cannot flow out of the hydrogen outlet.
[0026] The single-cylinder type methanol reforming reaction device of the utility model, such as Figures 1-5 As shown, on the basis of the technical solutions described in the foregoing, it can also be that: the combustion unit 2 comprises a flame combustion component 201 and a flameless combustion component 202, one end of the flame combustion component 201 is detachably connected with the reforming reaction chamber 3, and the other end of the flame combustion component 201 is detachably connected with the base 1 through the flameless combustion component 202. In this way, in actual application, about 10% of hydrogen is contained in the tail gas after the completion of the electric pile reaction, in order to improve the energy utilization rate, the tail gas generated at the electric pile end is also connected to the flame combustion component 201 for recombustion, but in actual design, since the hydrogen content in the tail gas is low, the flame combustion is easy to be affected, therefore, the flameless combustion component 202 is added in the present scheme, catalyst is placed in the flameless combustion component 202, and the further utilization of energy is realized through the heat release of the reaction of hydrogen and the catalyst.
[0027] The single-cylinder type methanol reforming reaction device of the utility model, such as Figures 1-5As shown, on the basis of the technical solutions described in the foregoing, it can also be: the flame combustion component 201 includes a flame outer cover 2011, a spray head 2012, an ignition needle 2013, a small coil pipe 2014, and an air duct plate 2015, the air duct plate 2015 is arranged at the lower end inside the flame outer cover 2011, the spray head 2012 is fixedly arranged inside the flame outer cover 2011, the small coil pipe 2014 is arranged above the spray head 2012 and communicates with the spray head 2012, the ignition needle 2013 is embedded on the flame outer cover 2011, one end of the flame outer cover 2011 is detachably connected with the reforming reaction chamber 3, and the other end of the flame outer cover 2011 is detachably connected with the flameless combustion component 202. In this way, the air duct plate 2015 is located at the lower end inside the flame outer cover 2011, can uniformly guide the air flow, ensures that the fuel and the oxygen are fully mixed, and thus improves the combustion efficiency. The spray head 2012 is fixed inside the flame outer cover 2011, ensures stable injection of the fuel, and the small coil pipe 2014 is arranged above the spray head 2012 and communicates with the spray head 2012, which is helpful for preheating the fuel and further promotes combustion. The ignition needle 2013 is embedded on the flame outer cover 2011, facilitates ignition and maintains the stability of the flame. One end of the flame outer cover 2011 is detachably connected with the reforming reaction chamber 3, and the other end of the flame outer cover 2011 is detachably connected with the flameless combustion component 202. This design not only facilitates assembly and maintenance, but also can quickly replace or adjust the combustion component according to different combustion requirements, improves the flexibility and adaptability of the system. Overall, the flame combustion component 201 realizes efficient combustion, easy operation and maintenance, and good system adaptability through the optimized structural design.
[0028] The single-cylinder type methanol reforming reaction device of the utility model, like Figures 1-5 As shown, on the basis of the technical solutions described in the foregoing, it can also be: the flame combustion component 201 includes a flame outer cover 2011, a spray head 2012, an ignition needle 2013, a small coil pipe 2014, and an air duct plate 2015, the air duct plate 2015 is arranged at the lower end inside the flame outer cover 2011, the spray head 2012 is fixedly arranged inside the flame outer cover 2011, the small coil pipe 2014 is arranged above the spray head 2012 and communicates with the spray head 2012, the ignition needle 2013 is embedded on the flame outer cover 2011, one end of the flame outer cover 2011 is detachably connected with the reforming reaction chamber 3, and the other end of the flame outer cover 2011 is detachably connected with the flameless combustion component 202. In this way, the air duct plate 2015 is located at the lower end inside the flame outer cover 2011, can uniformly guide the air flow, ensures that the fuel and the oxygen are fully mixed, and thus improves the combustion efficiency. The spray head 2012 is fixed inside the flame outer cover 2011, ensures stable injection of the fuel, and the small coil pipe 2014 is arranged above the spray head 2012 and communicates with the spray head 2012, which is helpful for preheating the fuel and further promotes combustion. The ignition needle 2013 is embedded on the flame outer cover 2011, facilitates ignition and maintains the stability of the flame. One end of the flame outer cover 2011 is detachably connected with the reforming reaction chamber 3, and the other end of the flame outer cover 2011 is detachably connected with the flameless combustion component 202. This design not only facilitates assembly and maintenance, but also can quickly replace or adjust the combustion component according to different combustion requirements, improves the flexibility and adaptability of the system. Overall, the flame combustion component 201 realizes efficient combustion, easy operation and maintenance, and good system adaptability through the optimized structural design.
Claims
1. A single-cylinder methanol reforming reactor, characterized in that: The application relates to a hydrogen production device, which comprises a base (1), a combustion unit (2), a reforming reaction chamber (3), an inner coil and an outer shell (4), wherein the base (1), the combustion unit (2) and the reforming reaction chamber (3) are sequentially connected from top to bottom, the outer shell (4) is sealingly arranged outside the reforming reaction chamber (3), the reforming reaction chamber (3) is arranged outside the inner coil, the reforming reaction chamber (3) is connected with the inner coil, and fins (5) are uniformly arranged between the outer shell (4) and the reforming reaction chamber (3).
2. The single-cell methanol reforming reactor of claim 1, wherein: The fins (5) extend from the middle upper part to the bottom of the outer side surface of the reforming reaction chamber (3).
3. The single-cell methanol reforming reactor of claim 2, wherein: An outer coil is arranged on the upper part of the outer side surface of the reforming reaction chamber (3) and is communicated with the inner coil.
4. The single-cell methanol reforming reactor of claim 1, wherein: The reforming reaction chamber (3) comprises an outer cylinder (301), an inner cylinder (302), a top cover (303) and a bottom disc (304), the outer cylinder (301) is arranged outside the inner cylinder (302), the top cover (303) and the bottom disc (304) respectively seal the upper and lower ends of the integrated outer cylinder (301) and inner cylinder (302) to form a columnar containing space, the outer side surface of the inner cylinder (302) is sleeved with an upper partition plate (305) and a lower partition plate (306), the inner coil is communicated with the containing space through the inner cylinder (302), and a hydrogen outlet is arranged on the top cover (303).
5. The single-cell methanol reforming reactor of claim 1, wherein: The combustion unit (2) comprises a flame combustion component (201) and a flameless combustion component (202), one end of the flame combustion component (201) is detachably connected with the reforming reaction chamber (3), and the other end of the flame combustion component (201) is detachably connected with the base (1) through the flameless combustion component (202).
6. The single-cell methanol reforming reactor of claim 5, wherein: The flame combustion component (201) comprises a flame outer cover (2011), a spray head (2012), an ignition needle (2013), a small coil (2014) and an air duct plate (2015), the air duct plate (2015) is arranged at the lower end inside the flame outer cover (2011), the spray head (2012) is fixedly arranged inside the flame outer cover (2011), the small coil (2014) is arranged above the spray head (2012) and is communicated with the spray head (2012), the ignition needle (2013) is embedded on the flame outer cover (2011), one end of the flame outer cover (2011) is detachably connected with the reforming reaction chamber (3), and the other end of the flame outer cover (2011) is detachably connected with the flameless combustion component (202).
7. The single-cell methanol reforming reactor of claim 6, wherein: The flameless combustion component (202) comprises a flameless outer cover (2021) and a combustion end cover (2022), the combustion end cover (2022) is fixedly arranged at the bottom of the flameless outer cover (2021), the upper part of the flameless outer cover (2021) is detachably connected with the flame combustion component (201), and the lower part of the combustion end cover (2022) is detachably connected with the base (1).