Methanation reaction equipment
By employing a multi-layered thermal insulation structure in the methanation reaction equipment, including heat-conducting and cooling components, the problem of heat loss is solved, achieving efficient heat recovery and safety protection, and improving the energy utilization rate of the equipment.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CIMC BLUEWATER TECH DEV (GUANGDONG) CO LTD
- Filing Date
- 2025-05-19
- Publication Date
- 2026-05-08
AI Technical Summary
The waste and safety hazards caused by heat loss during the methanation reaction are difficult to effectively insulate and recover heat using existing technologies.
The reactor employs a multi-layered insulation structure, including the reactor body, heat-conducting components, a first insulation shell, cooling components, and an outer shell. Heat is recovered through the heat-conducting components, and the cooling components provide cooling and insulation, thus achieving effective heat utilization and safety protection.
It improves the energy efficiency of methanation reaction equipment, reduces heat loss, avoids safety accidents, and achieves efficient heat recovery and isolation.
Smart Images
Figure CN224208021U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of coke oven gas to liquefied natural gas and hydrogen co-production technology, and in particular to a methanation reaction device. Background Technology
[0002] The process of producing hydrogen from coke oven gas to liquefied natural gas requires a reactor for methanation. Methanation is a reaction in which hydrogen reduces carbon monoxide and carbon dioxide to produce methane and water in the presence of a catalyst. This is a process that involves volume reduction and is highly exothermic.
[0003] Methanation plays an important role in various industrial processes. However, because methanation releases a large amount of heat, this heat can be conducted outwards due to insufficient insulation of the reactor, which not only wastes a lot of heat but also easily causes burns. Utility Model Content
[0004] One objective of this invention is to overcome the shortcomings of existing technologies and provide a methanation reaction apparatus. To solve the aforementioned technical problems, this invention adopts the following technical solution:
[0005] A methanation reaction apparatus, comprising:
[0006] Reactor body;
[0007] A first heat-insulating shell is disposed outside the reactor body, and there is a first gap space between the inner peripheral sidewall of the first heat-insulating shell and the outer peripheral sidewall of the reactor body.
[0008] A heat-conducting component is disposed within the first interval space. The heat-conducting component is used to transfer the heat emitted by the reactor body to an external heat recovery device.
[0009] The second heat insulation shell is disposed outside the first heat insulation shell, and there is a second gap space between the inner peripheral sidewall of the second heat insulation shell and the outer peripheral sidewall of the first heat insulation shell.
[0010] A cooling component is disposed within the second space and is used to cool the heat overflowing from the first insulation shell;
[0011] The outer shell is disposed outside the second heat insulation shell and is fixedly connected to the outer wall of the second heat insulation shell.
[0012] In one embodiment, the heat-conducting component is a heat-conducting pipe, which is spirally wound around the inner peripheral sidewall of the first heat insulation shell, and both ends of the heat-conducting pipe are connected to an external heat recovery device.
[0013] In one embodiment, the methanation reaction apparatus includes a waste heat power generation boiler, which is disposed on the outer side of the outer casing. The waste heat power generation boiler is provided with a heat-conducting component, which is connected to both ends of a heat-conducting pipe.
[0014] In one embodiment, the cooling component is a cooling water pipe, which is spirally wound around the inner peripheral sidewall of the second heat insulation shell, and both ends of the cooling water pipe are connected to an external water supply device.
[0015] In one embodiment, the methanation reaction apparatus further includes a water tank, which is disposed on one side of the outer shell. The top of the water tank is provided with a water inlet pipe, and the bottom of the water tank is provided with a water outlet pipe. The water inlet pipe and the water outlet pipe are respectively connected to the two ends of a cooling water pipe.
[0016] The water tank is equipped with a water pump, and the outlet of the water pump is connected to the water outlet pipe. The water pump is used to pump the water in the water tank to the cooling water pipe through the water outlet pipe.
[0017] In one embodiment, a water inlet pipe is provided on the top of the water tank for replenishing water to the tank.
[0018] In one embodiment, the methanation reaction apparatus includes a stirring component, which includes a stirring shaft. One end of the stirring shaft is rotatably connected to the top of the outer casing, and the other end of the stirring shaft extends into the interior of the reactor body. The stirring component is used to stir the mixture inside the reactor body.
[0019] In one embodiment, the stirring component further includes a stirring motor, which is fixed to the top of the housing and is driven by the stirring shaft to drive the stirring shaft to rotate.
[0020] In one embodiment, the stirring component further includes a plurality of stirring rods, which are fixedly fixed at intervals along the axial direction of the stirring shaft on the circumferential side of the stirring shaft.
[0021] In one embodiment, the reactor body is provided with a feed pipe and an exhaust pipe at the top, both of which extend outwards to the outer shell.
[0022] As can be seen from the above technical solution, this utility model has at least the following advantages and positive effects:
[0023] In this invention, the methanation reaction equipment includes, from the inside out, a reactor body, a heat-conducting component, a first heat-insulating shell, a cooling component, a second heat-insulating shell, and an outer shell. Both the first and second heat-insulating shells effectively block and prevent heat from escaping outwards. Thus, under the dual insulation effect of the first and second heat-insulating shells, heat is completely isolated within the second heat-insulating shell, preventing burns and other safety accidents caused by the high temperature of the outer shell.
[0024] Furthermore, the heat-conducting component is installed in the first gap space between the reactor body and the first heat insulation shell. Through the heat-conducting component, a large amount of heat generated by the methanation reaction can be transferred to the external heat recovery equipment for recycling, thereby effectively improving the energy utilization rate of the methanation reaction equipment and greatly reducing the heat dissipated to the outside.
[0025] In addition, the cooling component is located in the second space between the first and second insulation shells. The cooling component can absorb and exchange the heat overflowing from the first insulation shell to achieve the purpose of cooling and insulation, thereby further improving the thermal insulation capability of the methanation reaction equipment and eliminating safety accidents caused by heat overflow. Attached Figure Description
[0026] Figure 1 This is a schematic diagram of a methanation reaction apparatus according to one embodiment.
[0027] Figure 2 yes Figure 1 A cross-sectional view of the internal structure of the outer casing of the device shown.
[0028] Figure 3 yes Figure 1 A schematic diagram of the device as viewed along the direction of arrow A.
[0029] Figure 4 yes Figure 1 A cross-sectional view of the water tank in the device shown.
[0030] The annotations in the attached figures are explained as follows:
[0031] 100 - Reactor body; 110 - Feed pipe; 120 - Exhaust pipe;
[0032] 200 - Thermally conductive component; 210 - Thermal pipe;
[0033] 300 - First heat insulation shell; 310 - First spacer space;
[0034] 400 - Cooling components; 410 - Cooling water pipes;
[0035] 500 - Second thermal insulation shell; 510 - Second spacer space;
[0036] 600 - Outer shell;
[0037] 700 - Stirring component; 710 - Stirring shaft; 720 - Stirring motor; 730 - Stirring rod;
[0038] 800 - Waste heat power generation boiler; 810 - Heat-conducting components;
[0039] 900 - Water tank; 910 - Inlet pipe; 920 - Outlet pipe; 930 - Water pump; 940 - Water injection pipe. Detailed Implementation
[0040] Typical embodiments embodying the features and advantages of this utility model will be described in detail in the following description. It should be understood that this utility model can have various variations in different embodiments, all of which do not depart from the scope of this utility model, and the descriptions and illustrations therein are for illustrative purposes only and not intended to limit this utility model.
[0041] In the description of this application, it should be understood that, in the embodiments shown in the accompanying drawings, the indications of direction or positional relationships (such as up, down, left, right, front, and back) are merely for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. These descriptions are appropriate when these elements are in the positions shown in the accompanying drawings. If the description of the positions of these elements changes, these directional indications also change accordingly.
[0042] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the stated features. In the description of this application, "a plurality of" means two or more, unless otherwise explicitly specified.
[0043] Please see Figure 1 and Figure 2 As shown, the methanation reaction apparatus according to an embodiment of the present invention includes, from the inside out, a reactor body 100, a heat-conducting component 200, a first heat-insulating shell 300, a cooling component 400, a second heat-insulating shell 500, and an outer shell 600. The reactor body 100 is the container for the methanation reaction and can be made of high-temperature and high-pressure resistant materials, such as low-alloy high-strength structural steel Q345R.
[0044] like Figure 1 As shown, the reactor body 100 can be a cylindrical container. Alternatively, in other embodiments, the reactor body 100 can also be spherical, spherical, etc.
[0045] See Figure 2 In some embodiments, a feed pipe 110 is provided at the top of the reactor body 100, and the feed pipe 110 extends outward to the outer shell 600. The feed pipe 110 is used to add raw material gas and methanation catalyst into the reactor body 100.
[0046] like Figure 2As shown, the reactor body 100 is provided with an exhaust pipe 120 at the top, which extends outward to the outer shell 600. The exhaust pipe 120 is used to output the mixed gas generated after the reaction.
[0047] For example, the feed pipe 110 and the exhaust pipe 120 can both be welded and fixed to the reactor body 100, thereby ensuring the sealing performance of the connection between the feed pipe 110 and the exhaust pipe 120 and the reactor body 100.
[0048] It should be understood that in other embodiments, the feed pipe 110 may also be located at other locations in the reactor body 100, such as the bottom. The exhaust pipe 120 may also be located at other locations in the reactor body 100, such as near the top of the side wall.
[0049] See Figure 1 and Figure 2 As shown, in this invention, the first heat-insulating shell 300 is disposed outside the reactor body 100. Specifically, the shape of the first heat-insulating shell 300 matches the shape of the reactor body 100, that is, the first heat-insulating shell 300 can be cylindrical. Alternatively, the first heat-insulating shell 300 can also be spherical, spherical, etc.
[0050] Optionally, the first heat-insulating shell 300 can be made of heat-insulating material, such as vacuum insulation board, rock wool board, etc. The first heat-insulating shell 300 can prevent the heat generated by the reactor body 100 from directly dissipating to the outside.
[0051] like Figure 2 As shown, a first gap space 310 exists between the inner peripheral sidewall of the first heat insulation shell 300 and the outer peripheral sidewall of the reactor body 100. The first gap space 310 can be used to install the heat-conducting component 200, as detailed below.
[0052] It is understood that in some embodiments, the first space 310 may also be filled with insulating materials, such as expanded perlite, phenolic foam, etc., to further increase the thermal insulation performance of the equipment.
[0053] like Figure 2 As shown, optionally, the top and bottom walls of the reactor body 100 can be fixedly connected to the top and bottom walls of the first heat insulation shell 300, respectively. That is, there is no gap between the top and bottom walls of the reactor body 100 and the top and bottom walls of the first heat insulation shell 300, which can help reduce the size of the equipment.
[0054] It should be understood that in other embodiments, there may also be gaps between the top and bottom walls of the reactor body 100 and the top and bottom walls of the first insulation shell 300, and insulation material may be filled in these gaps to improve the insulation performance of the equipment. The specific configuration can be made according to actual needs.
[0055] See Figure 2 As shown, in this invention, the heat-conducting component 200 is disposed within the first space 310. The heat-conducting component 200 is used to transfer the heat emitted by the reactor body 100 to an external heat recovery device. Thus, the heat generated by the reaction inside the reactor body 100 can be transferred outwards for recovery and utilization through the heat-conducting component 200, improving the energy utilization rate of the equipment and avoiding safety accidents caused by direct heat overflow.
[0056] The heat-conducting component 200 may be fixedly installed on the outer wall of the reactor body 100, or it may be fixedly installed on the inner wall of the first heat-insulating shell 300. Alternatively, the heat-conducting component 200 may be fixedly connected to both the outer wall of the reactor body 100 and the inner wall of the first heat-insulating shell 300.
[0057] For example, the heat-conducting component 200 is in contact with and fixed to the outer wall of the reactor body 100 to more directly absorb and conduct the heat generated by the reaction inside the reactor body 100, thereby improving the heat transfer efficiency.
[0058] See Figure 2 In one embodiment, the heat-conducting component 200 can be structured as a heat-conducting pipe 210, which is spirally wound around the inner peripheral sidewall of the first heat-insulating shell 300. Both ends of the heat-conducting pipe 210 are connected to an external heat recovery device. The heat-conducting pipe 210 can be a metal heat-conducting pipe, such as a copper or aluminum pipe. Alternatively, it can be a non-metallic heat-conducting pipe or a composite material heat-conducting pipe, such as a ceramic pipe, depending on the specific application.
[0059] In this embodiment, the heat pipe 210 is spiral-shaped, which can increase the heat transfer area and improve the heat transfer efficiency. Furthermore, the spiral structure helps save space and reduce the size of the equipment.
[0060] It should be understood that in other embodiments, the heat pipe 210 may also be arranged in a serpentine or meandering manner on the inner peripheral sidewall of the first heat insulation housing 300, depending on the specific circumstances.
[0061] See Figure 1 and Figure 3In some embodiments, the methanation reaction apparatus includes a waste heat power generation boiler 800, which is disposed on the outer side of the outer casing 600. The waste heat power generation boiler 800 is equipped with a heat-conducting component 810, which is connected to both ends of a heat-conducting pipe 210. The heat-conducting component 810 can be a metallic heat-conducting component, such as a copper pipe or aluminum plate, or a non-metallic or composite material heat-conducting component. The heat-conducting component 810 primarily serves to connect the heat-conducting pipe 210 and the waste heat power generation boiler 800, transferring heat from the heat-conducting pipe 210 to the waste heat power generation boiler 800 for power generation.
[0062] In this embodiment, the heat pipe 210 conducts a large amount of heat generated by the reaction inside the reactor body 100 to the waste heat power generation boiler 800 through the heat-conducting component 810. The waste heat power generation boiler 800 can use this heat to generate electricity, thereby realizing the purpose of converting thermal energy into electrical energy, thus effectively recovering the thermal energy in the methanation reaction process and improving the energy utilization rate of the equipment.
[0063] Of course, in other embodiments, the external heat recovery device can also be a heater, a steam boiler, etc., as long as it can achieve the purpose of recovering and utilizing the heat conducted by the heat-conducting component 200.
[0064] In this embodiment of the invention, the heat-conducting component 200 is a heat-conducting pipe 210. However, the invention is not limited to this; in other embodiments, the heat-conducting component 200 may also be a heat-conducting plate or other heat-conducting structure, depending on the specific circumstances.
[0065] See Figure 2 In this invention, the second heat insulation shell 500 is disposed outside the first heat insulation shell 300. Specifically, the shape of the second heat insulation shell 500 matches the shape of the first heat insulation shell 300, that is, the second heat insulation shell 500 can be cylindrical. Alternatively, the second heat insulation shell 500 can also be spherical, spherical, or other shapes.
[0066] Optionally, the second insulation shell 500 can be made of an insulating material, such as a vacuum insulation panel or rock wool panel. The second insulation shell 500 can be used to prevent internal heat from escaping outward.
[0067] Specifically, since the methanation reaction generates a large amount of heat, and this large amount of heat is not completely blocked by the first heat insulation shell 300, the second heat insulation shell 500 can further block the heat from dissipating outward, thereby helping to achieve the goal of completely blocking the heat from dissipating outward.
[0068] like Figure 2As shown, a second gap space 510 exists between the inner peripheral sidewall of the second heat insulation housing 500 and the outer peripheral sidewall of the first heat insulation housing 300. The second gap space 510 can be used to install and set the cooling component 400, as detailed below.
[0069] It is understood that in some embodiments, the second space 510 may also be filled with insulating materials, such as expanded perlite, phenolic foam, etc., to further increase the thermal insulation performance of the equipment.
[0070] like Figure 2 As shown, optionally, the top and bottom walls of the first heat insulation shell 300 can be fixedly connected to the top and bottom walls of the second heat insulation shell 500, respectively. That is, there is no gap between the top and bottom walls of the first heat insulation shell 300 and the top and bottom walls of the second heat insulation shell 500, which can help reduce the size of the equipment.
[0071] It should be understood that in other embodiments, there may also be gaps between the top and bottom walls of the first heat insulation shell 300 and the top and bottom walls of the second heat insulation shell 500, and these gaps may be filled with heat insulation material to improve the heat insulation performance of the equipment. The specific configuration can be made according to actual needs.
[0072] See Figure 1 and Figure 2 As shown, in this invention, the cooling component 400 is disposed within the second space 510, and the cooling component 400 is used to cool the heat overflowing from the first heat insulation shell 300. Thus, the cooling component 400 can cool the heat overflowing from the first heat insulation shell 300, achieving the purpose of cooling and heat insulation, and preventing safety accidents caused by heat overflow.
[0073] The cooling component 400 may be fixedly installed on the outer wall of the first heat insulation shell 300, or it may be fixedly installed on the inner wall of the second heat insulation shell 500. Alternatively, the cooling component 400 may be fixedly connected to both the outer wall of the first heat insulation shell 300 and the inner wall of the second heat insulation shell 500.
[0074] For example, the cooling component 400 contacts and is fixed to the outer wall of the first heat insulation shell 300 to absorb and cool the heat overflowing from the first heat insulation shell 300 more directly, thereby improving the cooling effect.
[0075] See Figure 2In one embodiment, the cooling component 400 can be structured as a cooling water pipe 410, which is spirally wound around the inner peripheral sidewall of the second heat insulation shell 500. Both ends of the cooling water pipe 410 are connected to an external water supply device. The cooling water pipe 410 can be a metal pipe, such as a stainless steel pipe. Alternatively, it can be a non-metallic pipe or a composite material pipe, such as a high-temperature resistant plastic pipe, depending on the specific application.
[0076] In this embodiment, the cooling water pipe 410 is spiral-shaped, which can increase the heat exchange area and improve the heat exchange efficiency. Furthermore, the spiral structure helps save space and reduce the size of the equipment.
[0077] It should be understood that in other embodiments, the cooling water pipe 410 may also be arranged in a serpentine or meandering manner on the inner peripheral sidewall of the second heat insulation housing 500, or the cooling water pipe 410 may include multiple parallel and spaced pipes, depending on the specific circumstances.
[0078] like Figure 1 and Figure 4 As shown, in some embodiments, the methanation reaction apparatus further includes a water tank 900, which is disposed on the outer side of the outer casing 600. The top of the water tank 900 is provided with a water inlet pipe 910, and the bottom of the water tank 900 is provided with a water outlet pipe 920. The water inlet pipe 910 and the water outlet pipe 920 are respectively connected to the two ends of the cooling water pipe 410. Further, a water pump 930 is provided inside the water tank 900, and the outlet of the water pump 930 is connected to the water outlet pipe 920. The water pump 930 is used to pump water from the water tank 900 to the cooling water pipe 410 via the water outlet pipe 920.
[0079] like Figure 4 As shown, a water injection pipe 940 can be provided on the top of the water tank 900. The water injection pipe 940 is used to replenish water into the water tank 900, which is conducive to achieving a continuous supply of cooling water.
[0080] like Figure 4 As shown, multiple support legs can be installed at the bottom of the water tank 900 to stably support the water tank 900.
[0081] In this embodiment, the external water supply device is a water tank 900, and the cooling water pipe 410 is connected to the water tank 900. Therefore, water can be circulated into the cooling water pipe 410 through the water tank 900 and the water pump 930 for cooling, thereby improving the cooling effect and achieving the purpose of cooling and heat insulation.
[0082] In this embodiment of the invention, the cooling component 400 is a cooling water pipe 410. However, the invention is not limited to this; in other embodiments, the cooling component 400 may also be a heat exchanger or a cooling plate, etc., and can be configured according to actual needs.
[0083] It is understood that in other embodiments, the external water supply device may also be other circulating water supply devices, depending on the specific circumstances.
[0084] It should be noted that the electricity generated by the waste heat power generation boiler 800 mentioned above can be supplied to the water pump 930, thereby further reducing the energy consumption of the methanation reaction equipment.
[0085] See Figure 2 In this invention, the outer shell 600 is disposed outside the second heat insulation shell 500. The outer shape of the outer shell 600 matches the outer shape of the second heat insulation shell 500; that is, the outer shell 600 can be cylindrical. Alternatively, the outer shell 600 can also be spherical, spherical, or other shapes.
[0086] like Figure 2 As shown, the outer shell 600 is fixedly connected to the outer wall of the second heat-insulating shell 500, thereby improving the structural strength of the equipment and reducing its size. The outer shell 600 can be made of materials such as steel plate or alloy steel. Multiple supports can be provided at the bottom of the outer shell 600 to stably support the reaction equipment.
[0087] It should be noted that the feed pipe 110 and the exhaust pipe 120 mentioned above can pass through the outer shell 600, the second heat insulation shell 500, the first heat insulation shell 300, and the reactor body 100 in sequence from the outside to the inside, and communicate with the inside of the reactor body 100. The feed pipe 110 and the exhaust pipe 120 can be sealed to the outer shell 600, the second heat insulation shell 500, and the first heat insulation shell 300 using rubber sealing rings or similar devices.
[0088] It should be noted that the heat-conducting component 810 mentioned above can pass through the outer shell 600, the second heat-insulating shell 500, and the first heat-insulating shell 300 sequentially from the outside to the inside and be fixedly connected to the heat-conducting pipe 210. The heat-conducting component 810 can be sealed to the outer shell 600, the second heat-insulating shell 500, and the first heat-insulating shell 300 using rubber sealing rings or similar materials.
[0089] It should be noted that the inlet pipe 910 and outlet pipe 920 mentioned above can pass through the outer shell 600 and the second heat insulation shell 500 sequentially from the outside to the inside and connect with the cooling water pipe 410. The inlet pipe 910 and outlet pipe 920 can be sealed to the outer shell 600 and the second heat insulation shell 500 using rubber sealing rings or similar materials.
[0090] See Figure 1 and Figure 2 As shown, in some embodiments of this invention, the methanation reaction apparatus further includes a stirring component 700, which is used to stir the mixture inside the reactor body 100. Thus, the stirring component 700 can make the mixture inside the reactor body 100 more uniformly mixed, increasing the rate of the methanation reaction.
[0091] Specifically, the stirring component 700 includes a stirring shaft 710, one end of which is rotatably connected to the top of the outer casing 600, and the other end of which extends into the interior of the reactor body 100. For example, the upper end of the stirring shaft 710 passes through the top wall of the outer casing 600 and sequentially passes downward through the second insulation shell 500, the first insulation shell 300, and the top wall of the reactor body 100 before extending into the reactor body 100. The outer periphery of the stirring shaft 710 can be rotatably connected to the outer casing 600, the second insulation shell 500, the first insulation shell 300, and the reactor body 100 using sealed bearings, ensuring a tight seal at the connection point.
[0092] like Figure 2 As shown, in one embodiment, a plurality of stirring rods 730 may be provided on the stirring shaft 710, and the plurality of stirring rods 730 may be fixed at intervals on the circumferential surface of the stirring shaft 710 along the axial direction of the stirring shaft 710. Each stirring rod 730 may be arranged at an angle to the axial direction of the stirring shaft 710. For example, each stirring rod 730 may be perpendicular to the axial direction of the stirring shaft 710. By providing a plurality of spaced-apart stirring rods 730, the stirring effect can be improved, making the mixture inside the reactor body 100 more uniformly mixed, thereby contributing to an increase in the reaction rate.
[0093] It should be understood that in other embodiments, multiple stirring rods 730 may be omitted. For example, spiral stirring blades may be provided on the outer circumferential surface of the stirring shaft 710 to improve the stirring effect of the stirring component 700.
[0094] In one embodiment, the stirring component 700 further includes a stirring motor 720, which is fixed to the top of the outer casing 600 and is driven by the stirring shaft 710 to rotate the stirring shaft 710. It should be noted that the electrical energy generated by the waste heat power generation boiler 800 mentioned above can be supplied to the stirring motor 720, thereby further reducing the energy consumption of the methanation reaction equipment.
[0095] It should be understood that the stirring motor 720 may be omitted in other embodiments. Furthermore, the operator can drive the stirring shaft 710 to rotate via a handwheel or other mechanical structure, depending on actual needs.
[0096] In use, the methanation reaction equipment of this embodiment of the invention involves a methane reaction inside the reactor body 100, generating a large amount of heat. This heat is transferred outward from the reactor body 100 to the heat pipe 210, which then transfers the heat to the waste heat power generation boiler 800 for power generation. The remaining heat that is not completely discharged and isolated overflows through the first insulation shell 300 and is transferred to the cooling water pipe 410. The water in the cooling water pipe 410 is circulated by the water tank 900 and the water pump 930, further absorbing the heat. Finally, the overflowing heat is blocked by the second insulation shell 500, thus achieving complete isolation of the heat generated during the reaction process.
[0097] The methanation reaction apparatus of this utility model includes, from the inside out, a reactor body, a heat-conducting component, a first heat-insulating shell, a cooling component, a second heat-insulating shell, and an outer shell. Both the first and second heat-insulating shells effectively block and prevent heat from escaping outwards. Thus, under the dual insulation effect of the first and second heat-insulating shells, heat is completely isolated within the second heat-insulating shell, preventing burns and other safety accidents caused by the high temperature of the outer shell.
[0098] Furthermore, the heat-conducting component is installed in the first gap space between the reactor body and the first heat insulation shell. Through the heat-conducting component, a large amount of heat generated by the methanation reaction can be transferred to the external heat recovery equipment for recycling, thereby effectively improving the energy utilization rate of the methanation reaction equipment and greatly reducing the heat dissipated to the outside.
[0099] In addition, the cooling component is located in the second space between the first and second insulation shells. The cooling component can absorb and exchange the heat dissipated from the first insulation shell to achieve the purpose of cooling and insulation, thereby further improving the thermal insulation capability of the methanation reaction equipment and avoiding safety accidents caused by heat overflow.
[0100] The above embodiments are merely illustrative examples of structures. The structures in each embodiment are not fixed combinations. In the absence of structural conflicts, the structures in multiple embodiments can be arbitrarily combined and used.
[0101] Although the present invention has been described with reference to several typical embodiments, it should be understood that the terminology used is descriptive and exemplary, and not restrictive. Since the present invention can be embodied in many forms without departing from the spirit or essence of the invention, it should be understood that the above embodiments are not limited to any of the foregoing details, but should be interpreted broadly within the spirit and scope defined by the appended claims. Therefore, all variations and modifications falling within the scope of the claims or their equivalents should be covered by the appended claims.
Claims
1. A methanation reaction apparatus, characterized in that, include: Reactor body; A first heat-insulating shell is disposed outside the reactor body, and there is a first gap space between the inner peripheral sidewall of the first heat-insulating shell and the outer peripheral sidewall of the reactor body. A heat-conducting component is disposed within the first interval space, and the heat-conducting component is used to transfer the heat emitted by the reactor body to an external heat recovery device. The second heat insulation shell is disposed outside the first heat insulation shell, and there is a second gap space between the inner peripheral sidewall of the second heat insulation shell and the outer peripheral sidewall of the first heat insulation shell. A cooling component is disposed within the second space, and the cooling component is used to cool the heat overflowing from the first heat insulation shell; An outer shell is disposed outside the second heat insulation shell, and the outer shell is fixedly connected to the outer wall of the second heat insulation shell.
2. The methanation reaction apparatus according to claim 1, characterized in that, The heat-conducting component is a heat-conducting pipe, which is spirally wound on the inner circumferential sidewall of the first heat insulation shell, and both ends of the heat-conducting pipe are respectively connected to the external heat recovery device.
3. The methanation reaction apparatus according to claim 2, characterized in that, The invention includes a waste heat power generation boiler, which is disposed on the outer side of the outer shell. The waste heat power generation boiler is provided with a heat-conducting component, which is connected to both ends of the heat-conducting pipe.
4. The methanation reaction apparatus according to claim 1, characterized in that, The cooling component is a cooling water pipe, which is spirally wound on the inner circumferential side wall of the second heat insulation shell, and both ends of the cooling water pipe are connected to an external water supply device.
5. The methanation reaction apparatus according to claim 4, characterized in that, It also includes a water tank, which is located on the outer side of the outer shell. The top of the water tank is provided with a water inlet pipe, and the bottom of the water tank is provided with a water outlet pipe. The water inlet pipe and the water outlet pipe are respectively connected to the two ends of the cooling water pipe. The water tank is equipped with a water pump, the outlet of which is connected to the water outlet pipe. The water pump is used to pump the water in the water tank to the cooling water pipe through the water outlet pipe.
6. The methanation reaction apparatus according to claim 5, characterized in that, The top of the water tank is equipped with a water injection pipe, which is used to replenish the water tank with water.
7. The methanation reaction apparatus according to any one of claims 1 to 6, characterized in that, The reactor includes a stirring component, which includes a stirring shaft. One end of the stirring shaft is rotatably connected to the top of the outer casing, and the other end of the stirring shaft extends into the interior of the reactor body. The stirring component is used to stir the mixture inside the reactor body.
8. The methanation reaction apparatus according to claim 7, characterized in that, The stirring component also includes a stirring motor, which is fixed to the top of the outer casing and is driven by the stirring shaft to rotate the stirring shaft.
9. The methanation reaction apparatus according to claim 7, characterized in that, The stirring component also includes a plurality of stirring rods, which are fixed at intervals along the axial direction of the stirring shaft on the circumferential surface of the stirring shaft.
10. The methanation reaction apparatus according to any one of claims 1 to 6, characterized in that, The reactor body is provided with a feed pipe and an exhaust pipe at the top, both of which extend outwards to the outer shell.