CN-224208021-U - Methanation reaction equipment

CN224208021UCN 224208021 UCN224208021 UCN 224208021UCN-224208021-U

Abstract

The utility model relates to methanation reaction equipment which comprises a reactor body, a first heat insulation shell, a heat conduction component, a second heat insulation shell, a cooling component and an outer shell. The first heat insulating housing is disposed outside the reactor body with a first spacing space therebetween. The heat conduction member is disposed in the first space for transferring heat emitted from the reactor body to the external heat recovery device. The second heat insulating housing is disposed outside the first heat insulating housing with a second spacing space therebetween. The cooling component is arranged in the second interval space and used for cooling the heat overflowed by the first heat insulation shell. The outer shell is disposed outside the second insulating shell. The equipment has double heat insulation shells, can completely isolate heat, and avoid safety accidents such as scalding. And the energy utilization rate of the equipment can be improved through the heat conduction component, and the heat can be absorbed and exchanged through the cooling component, so that the heat isolation capability of the equipment is further improved.

Inventors

CHANG CHENG
DOU WEIDONG
YANG YUNAN
CHEN YINGBAO
LIANG MINGCONG
JIANG SHAOYOU

Assignees

中集蓝水科技发展(广东)有限公司
中国国际海运集装箱(集团)股份有限公司
中集安瑞科投资控股（深圳）有限公司

Dates

Publication Date: 20260508
Application Date: 20250519

Claims (10)

1. A methanation reaction apparatus, characterized by comprising: A reactor body; The first heat insulation shell is arranged outside the reactor body, and a first interval space is formed between the inner peripheral side wall of the first heat insulation shell and the outer peripheral side wall of the reactor body; A heat conduction member disposed in the first space for transferring heat emitted from the reactor body to an external heat recovery device; The second heat insulation shell is arranged outside the first heat insulation shell, and a second interval space is formed between the inner peripheral side wall of the second heat insulation shell and the outer peripheral side wall of the first heat insulation shell; A cooling part disposed in the second interval space, the cooling part being used for cooling heat overflowed from the first heat insulation housing; the outer shell is arranged outside the second heat insulation shell and fixedly connected with the outer wall of the second heat insulation shell.
2. The methanation reaction apparatus according to claim 1, wherein the heat conductive member is a heat conductive pipe spirally wound on an inner peripheral side wall of the first heat insulating housing, and both ends of the heat conductive pipe are connected to the external heat recovery apparatus, respectively.
3. The methanation reaction device according to claim 2, comprising a waste heat power generation boiler, wherein the waste heat power generation boiler is arranged on one side of the outer shell, a heat conducting piece is arranged on the waste heat power generation boiler, and the heat conducting piece is respectively connected with two ends of the heat conducting pipe.
4. The methanation reaction device according to claim 1, wherein the cooling member is a cooling water pipe spirally wound on an inner peripheral side wall of the second heat insulation housing, and both ends of the cooling water pipe are respectively communicated to an external water supply device.
5. The methanation reaction device according to claim 4, further comprising a water tank, wherein the water tank is arranged on one side of the outside of the outer shell, a water inlet pipe is arranged at the top of the water tank, a water outlet pipe is arranged at the bottom of the water tank, and the water inlet pipe and the water outlet pipe are respectively connected with two ends of the cooling water pipe; The water tank is internally provided with a water pump, an outlet of the water pump is communicated with the water outlet pipe, and the water pump is used for pumping water in the water tank to the cooling water pipe through the water outlet pipe.
6. The methanation reaction device according to claim 5, wherein a water injection pipe is provided at the top of the water tank, and the water injection pipe is used for supplementing water to the water tank.
7. The methanation reaction apparatus according to any one of claims 1 to 6, characterized by comprising a stirring member including a stirring shaft having one end rotatably connected to a top of the outer shell and the other end extending into an interior of the reactor body, the stirring member being for stirring a mixture inside the reactor body.
8. The methanation reaction apparatus according to claim 7, wherein the stirring member further comprises a stirring motor fixed to a top of the outer case, and the stirring motor is in driving connection with the stirring shaft to drive the stirring shaft to rotate.
9. The methanation reaction apparatus according to claim 7, wherein the stirring member further comprises a plurality of stirring bars, and a plurality of the stirring bars are fixed on a peripheral side surface of the stirring shaft at intervals in an axial direction of the stirring shaft.
10. Methanation reaction apparatus according to any one of claims 1 to 6, wherein a feed pipe and an exhaust pipe are provided at the top of the reactor body, and both the feed pipe and the exhaust pipe extend outward from the outer shell.

Description

Methanation reaction equipment Technical Field The utility model relates to the technical field of co-production of liquefied natural gas and hydrogen from coke oven gas, in particular to methanation reaction equipment. Background The reactor for methanation reaction is needed in the process of preparing liquefied natural gas and co-producing hydrogen from coke oven gas. Methanation is the reaction of reducing carbon monoxide and carbon dioxide with hydrogen in the presence of a catalyst to form methane and water, a process that reduces the volume and enhances the exotherm. Methanation plays an important role in various industrial processes, but because methanation releases a large amount of heat, the heat is conducted outwards due to insufficient isolation of a reactor, so that a large amount of heat is wasted, and scalding accidents are easy to occur. Disclosure of utility model The utility model aims to solve the defects in the prior art and provides methanation reaction equipment. In order to solve the technical problems, the utility model adopts the following technical scheme: a methanation reaction apparatus comprising: A reactor body; The first heat insulation shell is arranged outside the reactor body, and a first interval space is formed between the inner peripheral side wall of the first heat insulation shell and the outer peripheral side wall of the reactor body; The heat conduction component is arranged in the first interval space and is used for transmitting heat emitted by the reactor body to external heat recovery equipment; The second heat insulation shell is arranged outside the first heat insulation shell, and a second interval space is formed between the inner peripheral side wall of the second heat insulation shell and the outer peripheral side wall of the first heat insulation shell; The cooling component is arranged in the second interval space and is used for cooling the heat overflowed by the first heat insulation shell; The outer shell is arranged outside the second heat insulation shell and fixedly connected with the outer wall of the second heat insulation shell. In one embodiment, the heat conducting component is a heat conducting pipe, the heat conducting pipe is spirally wound on the inner peripheral side wall of the first heat insulation shell, and two ends of the heat conducting pipe are respectively connected to the external heat recovery device. In one embodiment, the methanation reaction device comprises a waste heat power generation boiler, the waste heat power generation boiler is arranged on one side of the outer shell, a heat conducting piece is arranged on the waste heat power generation boiler, and the heat conducting piece is respectively connected with two ends of the heat conducting pipe. In one embodiment, the cooling component is a cooling water pipe, the cooling water pipe is spirally wound on the inner peripheral side wall of the second heat insulation shell, and two ends of the cooling water pipe are respectively communicated with external water supply equipment. In one embodiment, the methanation reaction device further comprises a water tank, wherein the water tank is arranged on one side of the outer shell, the top of the water tank is provided with a water inlet pipe, the bottom of the water tank is provided with a water outlet pipe, and the water inlet pipe and the water outlet pipe are respectively connected with two ends of the cooling water pipe; The water tank is internally provided with a water pump, an outlet of the water pump is communicated with the water outlet pipe, and the water pump is used for pumping water in the water tank to the cooling water pipe through the water outlet pipe. In one embodiment, the top of the water tank is provided with a water injection pipe for replenishing water to the water tank. In one embodiment, the methanation reaction device comprises a stirring component, the stirring component comprises a stirring shaft, one end of the stirring shaft is rotatably connected to the top of the outer shell, the other end of the stirring shaft extends into the reactor body, and the stirring component is used for stirring the mixture in the reactor body. In one embodiment, the stirring component further comprises a stirring motor, wherein the stirring motor is fixed at the top of the outer shell, and the stirring motor is in driving connection with the stirring shaft so as to drive the stirring shaft to rotate. In one embodiment, the stirring member further comprises a plurality of stirring rods fixed on a circumferential side surface of the stirring shaft at intervals along an axial direction of the stirring shaft. In one embodiment, the top of the reactor body is provided with a feed pipe and an exhaust pipe, and both the feed pipe and the exhaust pipe extend outwards from the outer shell. According to the technical scheme, the utility model has at least the following advantages and positive effects: in the utility model, the met