Double-shell-side electric heating vaporization superheater

Abstract

The double-shell-side electric heating vaporization superheater comprises a shell, a partition plate is arranged in the shell and divides the area in the shell into two areas, one area serves as a first heat exchange range area, and the other area serves as a second heat exchange range area. The first heat exchange range area and the second heat exchange range area are each provided with a first heat exchange heat source module and a second heat exchange heat source module. A feed gas inlet is formed corresponding to the first heat exchange range area, and an overheated gas outlet is formed corresponding to the second heat exchange range area; the top area of the isolation plate is a gas circulation part, and a gas circulation hole is formed in the gas circulation part; raw material gas enters the first heat exchange range area, exchanges heat with the first heat exchange heat source module, then enters the second heat exchange range area through the gas circulation part, exchanges heat with the second heat exchange heat source module, and flows out from the gas outlet after overheating treatment after reaching the designed temperature, so that a double-shell-pass electric heating vaporization overheating structure is formed.

Description

TECHNICAL FIELD

[0001] The present application relates to chemical equipment, in particular to methanol hydrogen production technology and its use equipment, specifically, a double-shell process electric heating vaporization superheater. BACKGROUND

[0002] The vaporization superheater is the core equipment in the methanol hydrogen production device, the raw material gas enters the vaporization superheater, absorbs the heat supply of the electric heating coil, and carries out sufficient heat exchange to produce the superheated vaporization raw material gas.

[0003] The traditional vaporization superheater is relatively slender, and the length of the heat exchange pipe is increased to achieve the purpose of superheating vaporization, the installation is high, the heat exchange pipe adopts double pipe process, the equipment processing requirement is high, and the equipment manufacturing, transportation and installation cost is high, which is not convenient for prying and installing.

[0004] With the development of prying and installing methanol hydrogen production device, how to reduce the volume of the vaporization superheater and pry and install it into blocks has become an important issue.

[0005] Therefore, it is necessary to provide a double-shell process electric heating vaporization superheater to solve the above problems. SUMMARY

[0006] The purpose of the present application is to provide a double-shell process electric heating vaporization superheater.

[0007] The technical scheme is as follows: A double-shell process electric heating vaporization superheater, comprising a shell, a partition plate is arranged in the shell, the partition plate divides the area in the shell into two areas, one area is used as a first heat exchange process area, and the other area is used as a second heat exchange process area, the first heat exchange process area and the second heat exchange process area are respectively provided with first heat exchange heat source modules and second heat exchange heat source modules; A raw material gas inlet is arranged corresponding to the first heat exchange process area, and a superheated gas outlet is arranged corresponding to the second heat exchange process area; The top area of the partition plate is a gas flow-through part, and a gas flow-through hole is arranged on the gas flow-through part; The raw material gas enters the first heat exchange process area, exchanges heat with the first heat exchange heat source module, then enters the second heat exchange process area through the gas flow-through part, exchanges heat with the second heat exchange heat source module, and flows out from the superheated gas outlet after reaching the design temperature, forming a double-shell process electric heating vaporization superheating structure.

[0008] Further, the first heat exchange heat source module and the second heat exchange heat source module each include an electric heating coil.

[0009] Further, a baffle module is arranged on the electric heating coil, the baffle module is used as a raw material gas walking path planning execution part, and ensures that the raw material gas fully contacts with the electric heating coil to achieve the purpose of sufficient heat exchange.

[0010] Further, the baffle plate module comprises a plurality of first baffle plates and second baffle plates arranged at intervals, one end of the first baffle plate is close to the inner wall of the shell, and the other end forms a first baffle opening together with the partition plate, one end of the second baffle plate is close to the partition plate, and the other end forms a second baffle opening together with the inner wall of the shell.

[0011] Further, the number of the first baffle plates and the second baffle plates is not less than 4.

[0012] Further, the upper end of the shell is a head, the head is in a semispherical shape, and the gas flow passage is located at the head.

[0013] Further, the electric heating coil is arranged on the lower flange, and an electric heater used in cooperation with the electric heating coil is further arranged on the lower flange.

[0014] Further, the lower part of the shell is provided with an upper flange, the upper flange and the lower flange are fixedly connected, and a sealing element is arranged at the connection.

[0015] Compared with the prior art, the shell side is divided into two sections in the present application, the length is reduced, the vaporization superheater height is reduced, and prying and transportation are facilitated; two groups of heating coils are arranged on both sides of the flange, and baffles are used, which is beneficial to sufficient heat exchange and improves the heat exchange effect; when installed vertically, the inlet and outlet pipes are arranged on the side of the vaporization superheater, the installation height of the pipes is reduced; when installed horizontally, the inlet pipe is arranged at the bottom of the vaporization superheater, and the outlet pipe is arranged at the top of the vaporization superheater, the installation height of the pipes is reduced; the heating coil is fixed by flange connection, which is convenient for disassembly and maintenance; the overall height is reduced, and the number of auxiliary components such as steel ladders is reduced. BRIEF DESCRIPTION OF DRAWINGS

[0016] Fig. 1 is a structural schematic diagram of the present application.

[0017] Fig. 2 is a schematic diagram of the shell.

[0018] Fig. 3 is a schematic diagram of the first heat exchange heat source module and the second heat exchange heat source module. DETAILED DESCRIPTION Embodiment:

[0019] Please refer to Figs. 1-3 , the present embodiment shows a double-shell electric heating vaporization superheater, which comprises a shell 1, a partition plate 2 is arranged in the shell 1, the partition plate 2 divides the area in the shell 1 into two areas, one area is used as a first heat exchange area 100, and the other area is used as a second heat exchange area 200, the first heat exchange area 100 and the second heat exchange area 200 are respectively provided with a first heat exchange heat source module 3 and a second heat exchange heat source module 4. A raw material gas inlet 101 is arranged corresponding to the first heat exchange region 100, and a superheating processed gas outlet 201 is arranged corresponding to the second heat exchange region 200; The top region of the isolation plate 2 is a gas flow passage 21, and a gas flow hole 5 is arranged on the gas flow passage 21; The raw material gas enters the first heat exchange region 100, exchanges heat with the first heat exchange heat source module 3, then passes through the gas flow passage 21 to enter the second heat exchange region 200, exchanges heat with the second heat exchange heat source module 4, reaches the design temperature, and then flows out from the superheating processed gas outlet, forming a double-shell heat exchange electric heating vaporization and superheating structure.

[0020] The first heat exchange heat source module 100 and the second heat exchange heat source module 200 each include an electric heating coil 5.

[0021] A baffle module 6 is arranged on the electric heating coil 5, and the baffle module 6 is used as a raw material gas path planning execution part to ensure that the raw material gas is in full contact with the electric heating coil 5 to achieve the purpose of full heat exchange.

[0022] The baffle module 6 includes a plurality of first baffles 61 and second baffles 62 arranged at intervals, one end of the first baffle 61 is tightly attached to the inner wall of the shell 1, and the other end forms a first baffle opening 63 with the isolation plate 2, one end of the second baffle 62 is tightly attached to the isolation plate 2, and the other end forms a second baffle opening 64 with the inner wall 1 of the shell.

[0023] The number of the first baffles 61 and the second baffles 62 is not less than 4.

[0024] The upper end of the shell 1 is a head 7, the head 7 is in a semispherical shape, and the gas flow passage 21 is located at the head 7.

[0025] The electric heating coil 5 is arranged on a lower flange 8, and an electric heater 9 used in cooperation with the electric heating coil 5 is also arranged on the lower flange 8.

[0026] The lower part of the shell 1 is provided with an upper flange 10, the upper flange 10 and the lower flange 8 are fixedly connected, and a sealing element is arranged at the connection.

[0027] Among them: The device can be installed horizontally or vertically according to the site conditions, and the installation is flexible. The heating power and length of the electric heating coil 5 can also be adjusted according to the size of the device; The electric heating coil 5 passes through the first baffles 61 and the second baffles 62; The isolation plate 2 is fixedly welded to the shell 1; The electric heating coil 5 is connected to the lower flange 8, and two groups of electric heating coils are located on the two sides of the lower flange 8, which facilitates insertion into the first heat exchange region 100 and the second heat exchange region 200 in the shell, and the lower flange 8 is fixedly connected to the flange 10 of the shell 1. The sealing piece between the lower flange 8 and the flange 10 is a gasket, and the fixing between the lower flange 8 and the flange 10 is realized through bolts and nuts, which can be disassembled and repaired later; The support feet are arranged at the bottom of the shell 1 if the vertical installation is adopted, and are arranged at the raw gas inlet 101 side of the shell 1 if the horizontal installation is adopted; The material of the shell 1, the isolation plate 2, the first baffle 61 and the second baffle 62 and the electric heating coil 5 includes but is not limited to carbon steel, stainless steel and hard alloy.

[0028] Compared with the prior art, the present application divides the shell into two sections, reduces the length, reduces the height of the vaporization superheater, facilitates prying, installation and transportation, adopts two groups of heating coils located on both sides of the flange, adopts baffles, is beneficial to sufficient heat exchange and improves the heat exchange effect, when vertically installed, the inlet and outlet pipes are arranged on the side of the vaporization superheater, reduces the installation height of the pipes, when horizontally installed, the inlet pipe is arranged at the bottom of the vaporization superheater and the outlet pipe is arranged at the top of the vaporization superheater, reduces the installation height of the pipes, the heating coil is fixed through the flange connection and is fixed with the flange of the shell, facilitates disassembly, assembly and maintenance, the overall height is reduced, and the auxiliary components such as steel ladders are reduced.

[0029] For those skilled in the art, without departing from the inventive concept, several modifications and improvements can be made, which are within the protection scope of the present application.

Claims

1. A double-shell electrically heated vaporization superheater, characterized in that: The device includes a shell, and an isolation plate is provided inside the shell. The isolation plate divides the area inside the shell into two areas. One area is used as the first heat exchange range area, and the other area is used as the second heat exchange range area. The first heat exchange range area and the second heat exchange range area are respectively provided with a first heat exchange heat source module and a second heat exchange heat source module. A raw material gas inlet is provided in the first heat exchange zone, and an outlet for the overheated gas is provided in the second heat exchange zone. The top area of ​​the isolation plate is a gas flow section, and gas flow holes are provided on the gas flow section; The raw material gas enters the first heat exchange zone and exchanges heat with the first heat source module. Then it enters the second heat exchange zone through the gas flow section and exchanges heat with the second heat source module. After reaching the design temperature, it flows out from the superheated gas outlet, forming a double-shell electrically heated vaporization superheating structure.

2. The double-shell electrically heated vaporization superheater according to claim 1, characterized in that: Both the first heat exchanger module and the second heat exchanger module include electric heating coils.

3. A double-shell electrically heated vaporization superheater according to claim 2, characterized in that: The electric heating coil is equipped with a baffle module, which serves as the execution unit for planning the path of the raw material gas, ensuring that the raw material gas is in full contact with the electric heating coil to achieve full heat exchange.

4. A double-shell electrically heated vaporization superheater according to claim 3, characterized in that: The baffle module includes several first baffles and second baffles arranged at intervals. One end of the first baffle is in close contact with the inner wall of the housing, and the other end forms a first baffle opening with the isolation plate. One end of the second baffle is in close contact with the isolation plate, and the other end forms a second baffle opening with the inner wall of the housing.

5. A double-shell electrically heated vaporization superheater according to claim 4, characterized in that: The number of both the first and second baffles shall not be less than four.

6. A double-shell electrically heated vaporization superheater according to claim 5, characterized in that: The upper end of the shell is a head, which is hemispherical in shape, and the gas flow section is located at the head.

7. A double-shell electrically heated vaporization superheater according to claim 6, characterized in that: The electric heating coil is installed on the lower flange, and an electric heater that works in conjunction with the electric heating coil is also installed on the lower flange.

8. A double-shell electrically heated vaporization superheater according to claim 7, characterized in that: The lower part of the housing is provided with an upper flange, which is fixedly connected to the lower flange, and a seal is provided at the connection.

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