CN222019281U

CN222019281U - Conversion furnace

Info

Publication number: CN222019281U
Application number: CN202420445846.5U
Authority: CN
Inventors: 蒋辉; 贾国庆; 陈长铭; 付延朋
Original assignee: No2 Coal Industry Co Of Luxi Chemical Group Co ltd
Current assignee: No2 Coal Industry Co Of Luxi Chemical Group Co ltd
Filing date: 2024-03-08
Publication date: 2024-11-19
Anticipated expiration: 2034-03-08

Abstract

The utility model relates to the technical field of conversion systems, in particular to a conversion furnace, which comprises a shell, wherein a heat exchange device and a catalytic device are arranged in the shell; the top of the shell is provided with an air inlet pipe, the catalytic device comprises a catalytic chamber, a gap for passing air is arranged between the catalytic chamber and the shell, the lateral part of the catalytic chamber is provided with an air vent, and the interior of the catalytic chamber is provided with a granular catalyst; a gas collecting tube is arranged in the catalytic chamber, a vent hole is arranged at the side part of the gas collecting tube, the gas collecting pipe is connected with a gas outlet pipe, the outlet pipe is far away from the gas collecting pipe one end of the shell is positioned at the outer side of the shell; the heat exchange device comprises a heat exchange tube, and the heat exchange tube is positioned in the catalytic chamber; the beneficial effects of the utility model are as follows: the gas to be converted flows through the catalyst along the radial direction, and the resistance to the flow is small; the catalyst does not participate in the reaction, but can accelerate the reaction, the catalyst can be repeatedly used, and the reaction cost is low.

Description

Conversion furnace

Technical Field

The utility model relates to the technical field of conversion systems, in particular to a conversion furnace.

Background

Patent application number 202121208711. X discloses a novel built-in heat transfer and change stove, including heat transfer and change stove main part, heat transfer and change stove main part includes: a reaction mechanism for carrying out catalytic reaction on the crude gas; the heat exchange mechanism is used for controlling the temperature of the crude gas reaction, and the heat exchange mechanism is arranged in the reaction mechanism; the reaction mechanism comprises a shell, wherein an upper ball head and a lower ball head are respectively arranged at the upper end and the lower end of the shell; the upper ball head is provided with two groups of air inlets which are symmetrically distributed left and right and four groups of feed inlets which are uniformly distributed along the circumference; two groups of air outlets which are symmetrically distributed left and right and four groups of discharge outlets which are uniformly distributed along the circumference are arranged on the lower ball head; the heat exchange mechanism comprises an upper header and a lower header which are arranged up and down symmetrically, the upper header and the lower header are fixedly connected to the shell, the upper end of the upper header passes through the shell to extend to the outer side, and the bottom end of the lower header passes through the shell to extend to the outer side; the top end of the upper header is provided with a steam outlet, the bottom end of the lower header is provided with a circulating water inlet, and manholes are formed in the upper header and the lower header; and a plurality of groups of heat exchange tubes are uniformly arranged between the upper header and the lower header along the circumference.

The above-mentioned shift converter has the disadvantage that: 1. the gas to be converted axially passes through the conversion furnace, and the resistance received in the flowing process is larger: 2. the catalyst is continuously added and discharged after the reaction in the shift converter, so that the catalyst consumption is high and the reaction cost is high.

Disclosure of utility model

The utility model mainly aims to provide a shift converter which solves the problems of high resistance and high reaction cost in the gas flow process needing shift in the prior art.

In order to achieve the above purpose, the utility model provides a shift converter, which comprises a shell, wherein a heat exchange device and a catalytic device are arranged in the shell; the top of the shell is provided with an air inlet pipe, the catalytic device comprises a catalytic chamber, a gap for passing air is arranged between the catalytic chamber and the shell, the lateral part of the catalytic chamber is provided with an air vent, and the interior of the catalytic chamber is provided with a granular catalyst; a gas collecting tube is arranged in the catalytic chamber, a vent hole is arranged at the side part of the gas collecting tube, the gas collecting pipe is connected with a gas outlet pipe, the outlet pipe is far away from the gas collecting pipe one end of the shell is positioned at the outer side of the shell; the heat exchange device comprises a heat exchange tube, and the heat exchange tube is positioned in the catalytic chamber.

Further, the heat exchange device comprises a heat exchange medium outlet pipe, a heat exchange medium inlet pipe, a first spherical chamber and a second spherical chamber, wherein the bottom end of the heat exchange medium outlet pipe is connected with the top end of the heat exchange pipe through the first spherical chamber, the top end of the heat exchange medium inlet pipe is connected with the bottom end of the heat exchange pipe through the second spherical chamber, and the top end of the heat exchange medium outlet pipe and the bottom end of the heat exchange medium inlet pipe are positioned outside the shell; the first spherical chamber and the second spherical chamber are used for plugging and isolating two ends of the leaked heat exchange tube when personnel enter the first spherical chamber and the second spherical chamber after the heat exchange tube is leaked.

Further, the gas collecting tube is connected with the gas outlet tube through a third spherical chamber, and the third spherical chamber is sleeved on the outer side of the second spherical chamber.

Further, the top of the catalytic chamber is provided with an addition port for adding a catalyst.

The beneficial effects of the utility model are as follows:

1. The gas to be converted flows through the catalyst along the radial direction, and the resistance to the flow is small;

2. The catalyst does not participate in the reaction, but can accelerate the reaction, the catalyst can be repeatedly used, and the reaction cost is low.

Drawings

The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the utility model.

FIG. 1 is a schematic diagram of an embodiment;

In the figure: 1. a housing; 2. a heat exchange device; 201. a heat exchange tube; 202. a heat exchange medium outlet pipe; 203. a heat exchange medium inlet pipe; 204. a first spherical chamber; 205. a second spherical chamber; 3. a catalytic device; 301. a catalytic chamber; 302. a catalyst; 303. an addition port; 4. a gas collecting tube; 5. an air outlet pipe; 6. a third spherical chamber; 7. and an air inlet pipe.

Detailed Description

It should be noted that, without conflict, the embodiments of the present utility model and features of the embodiments may be combined with each other. The utility model will be described in detail below with reference to the drawings in connection with embodiments.

As shown in fig. 1, according to an embodiment of the present utility model, there is provided a shift converter including a housing 1, wherein a heat exchanging device 2 and a catalytic device 3 are provided inside the housing 1; the top of the shell 1 is provided with an air inlet pipe 7, the bottom is provided with an air outlet pipe 5, the catalytic device 3 comprises a catalytic chamber 301, a gap for passing air is arranged between the catalytic chamber 301 and the shell 1, the side part of the catalytic chamber 301 is provided with a vent hole, the inside of the catalytic chamber 301 is provided with a granular catalyst 302, and the catalyst is specifically a sulfur-tolerant shift catalyst; the inside of the catalysis room 301 is provided with a gas collecting tube 4, the side part of the gas collecting tube 4 is provided with a vent hole, the gas collecting tube 4 is connected with a gas outlet tube 5, and one end of the gas outlet tube 5 away from the gas collecting tube 4 is positioned at the outer side of the shell 1.

The heat exchange device 2 comprises a heat exchange tube 201, a heat exchange medium outlet tube 202, a heat exchange medium inlet tube 203, a first spherical chamber 204 and a second spherical chamber 205; the heat exchange tube 201 is located inside the catalytic chamber 301; the outer diameter of the heat exchange tube 201 is 25mm, the tube wall thickness is 2.5mm, and the material is S32168; the bottom end of the heat exchange medium outlet pipe 202 is connected with the top end of the heat exchange pipe 201 through a first spherical chamber 204, the top end of the heat exchange medium inlet pipe 203 is connected with the bottom end of the heat exchange pipe 201 through a second spherical chamber 205, and the top end of the heat exchange medium outlet pipe 202 and the bottom end of the heat exchange medium inlet pipe 203 are positioned outside the shell 1; bending is arranged at two ends of the heat exchange tube 201, and the bending can offset the thermal stress at the joint of the heat exchange tube 201 and the first spherical chamber 204 and the second spherical chamber 205; the first spherical chamber and the second spherical chamber are used for plugging and isolating two ends of the leaked heat exchange tube when personnel enter the first spherical chamber and the second spherical chamber after the heat exchange tube is leaked.

The gas collecting tube 4 is connected with the gas outlet tube 5 through a third spherical chamber 6, and the third spherical chamber 6 is sleeved on the outer side of the second spherical chamber 205; the top of the catalytic chamber 301 is provided with an addition port 303 for adding a catalyst.

The working principle of the embodiment is as follows: the water gas to be converted firstly enters the shell 1 through the air inlet pipe 7 and then enters a gap between the shell 1 and the catalytic device 3; the gas then flows radially through the catalytic device 3 into the header 4; finally, the gas flows into the third spherical chamber 6 and flows out through the gas outlet pipe 5, and a great amount of heat is generated by the water gas in the conversion process; the heat exchange medium in the heat exchange device 2 absorbs the heat and is recycled.

The above description is only of the preferred embodiments of the present utility model and is not intended to limit the present utility model, but various modifications and variations can be made to the present utility model by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.

Claims

1. The shift converter comprises a shell (1), and is characterized in that a heat exchange device (2) and a catalytic device (3) are arranged in the shell (1); the top of the shell (1) is provided with an air inlet pipe (7), the catalytic device (3) comprises a catalytic chamber (301), a gap for passing air is formed between the catalytic chamber (301) and the shell (1), the side part of the catalytic chamber (301) is provided with an air vent, and the interior of the catalytic chamber (301) is provided with a granular catalyst (302); the catalytic device is characterized in that a gas collecting tube (4) is arranged in the catalytic chamber (301), a vent hole is formed in the side part of the gas collecting tube (4), the gas collecting tube (4) is connected with a gas outlet tube (5), and one end, far away from the gas collecting tube (4), of the gas outlet tube (5) is located on the outer side of the shell (1); the heat exchange device (2) comprises a heat exchange tube (201), and the heat exchange tube (201) is positioned inside the catalytic chamber (301).

2. The shift converter according to claim 1, wherein the heat exchange device (2) comprises a heat exchange medium outlet pipe (202), a heat exchange medium inlet pipe (203), a first spherical chamber (204) and a second spherical chamber (205), wherein the bottom end of the heat exchange medium outlet pipe (202) is connected with the top end of the heat exchange pipe (201) through the first spherical chamber (204), the top end of the heat exchange medium inlet pipe (203) is connected with the bottom end of the heat exchange pipe (201) through the second spherical chamber (205), and the top end of the heat exchange medium outlet pipe (202) and the bottom end of the heat exchange medium inlet pipe (203) are located outside the shell (1).

3. The shift converter according to claim 1, characterized in that the gas collecting tube (4) is connected to the gas outlet tube (5) through a third spherical chamber (6), the third spherical chamber (6) being sleeved outside the second spherical chamber (205).

4. The shift converter according to claim 1, characterized in that the top of the catalytic chamber (301) is provided with an addition port (303) for adding catalyst.