CO catalytic oxidation reactor

Abstract

The utility model discloses a CO catalytic oxidation reactor which comprises a reactor shell and a reactor top cover arranged on the top face of the reactor shell, a partition is fixedly arranged in the middle of the reactor shell, and a right air chamber and a left air chamber are arranged in the reactor shell and located on the two sides of the partition respectively. Module bases are arranged in the right gas chamber and the left gas chamber, catalyst modules are arranged on the top surfaces of the module bases, each catalyst module comprises a catalyst assembly frame, and a plurality of catalyst elements are arranged in each catalyst assembly frame. According to the CO catalytic oxidation reactor, a double-air-chamber series connection structure is adopted, air enters the right air chamber, air exits the left air chamber and is separated through the partition, flue gas flows through the catalyst module to form an inverted-U-shaped route so as to carry out catalytic reaction, the catalyst module is assembled and arranged so that a catalyst can be conveniently replaced, the height of the reactor is reduced as much as possible, and the service life of the reactor is prolonged. And the sealing performance and the heat preservation performance of the device are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of chemical industry, in particular to a CO catalytic oxidation reactor. Background Art

[0002] CO is a toxic and harmful gas that is colorless, odorless, flammable and explosive. It is one of the main air pollutants. According to statistics, the world emits hundreds of millions of tons of CO into the environment each year, most of which comes from the combustion of fossil fuels (such as thermal power generation, vehicle exhaust) and industrial waste gas (such as organic matter incineration, chemical reaction processes, etc.). Large-scale CO emissions will not only threaten the health of the environment and ecology, but also directly threaten human health, causing dizziness, headaches and even suffocation and death.

[0003] In recent years, catalytic oxidation has become the main method of CO conversion due to its advantages such as low temperature, high oxidation efficiency and environmental friendliness. It has been widely used in military industry, energy, protection, chemical industry and environmental protection fields.

[0004] Most of the existing CO catalytic reactors are floor-mounted, have large volumes, and are inconvenient to replace the internal catalyst, which poses certain safety hazards. The sealing and thermal insulation effects inside the reactor are poor. Therefore, in view of the above shortcomings, the present utility model makes the following improvements. Utility Model Content

[0005] In view of the deficiencies in the prior art, the utility model provides a CO catalytic oxidation reactor, which solves the problems mentioned in the background technology.

[0006] To achieve the above objectives, the utility model is implemented through the following technical solutions: A CO catalytic oxidation reactor, comprising a reactor shell and a reactor top cover arranged on the top surface of the reactor shell, a partition is fixedly arranged in the middle of the reactor shell, a right air chamber and a left air chamber are arranged inside the reactor shell and on both sides of the partition, and a module base is arranged inside the right air chamber and the left air chamber, and a catalyst module is arranged on the top surface of the module base;

[0007] The catalyst module comprises a catalyst assembly frame, and a plurality of catalyst elements are arranged inside the catalyst assembly frame, and an aluminum silicate fiber felt is arranged between two adjacent catalyst elements.

[0008] Preferably, the catalyst element is a solid catalyst, and a high temperature resistant glass fiber sealing strip is used to seal between the module base and the catalyst module.

[0009] Preferably, an air inlet is provided at the bottom of one side of the right air chamber, and an air outlet is provided at the bottom of the front side of the left air chamber.

[0010] Preferably, the reactor top cover is fixed to the top surface of the reactor shell by fastening bolts, and the reactor shell is welded by frame steel and steel plates to form a closed space.

[0011] Preferably, a heat-insulating layer is provided at the bottom of the inner wall of the reactor shell, and a plurality of fixed supports are provided at the bottom of the reactor shell.

[0012] Preferably, the fixed support includes a column foot and an embedded steel plate, and the bottom end of the column foot is welded to the top surface of the embedded steel plate.

[0013] Beneficial Effects

[0014] The utility model provides a CO catalytic oxidation reactor. Compared with the prior art, it has the following beneficial effects:

[0015] (1) The CO catalytic oxidation reactor adopts a double-chamber series structure, with the right chamber for air intake and the left chamber for air outlet, and is separated by a partition. The flue gas flows through the catalyst module to form an inverted U-shaped route for catalytic reaction. The assembly setting of the catalyst module can facilitate the replacement of the catalyst, reduce the height of the reactor as much as possible, and improve the sealing and thermal insulation of the device.

[0016] (2) The CO catalytic oxidation reactor can prevent the heat dissipation of flue gas by setting a thermal insulation layer, thereby improving the thermal insulation effect inside the reactor. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a cross-sectional view of the structure of the utility model;

[0018] Figure 2 It is a side view of the structure of the utility model;

[0019] Figure 3 A top view of the structure of the utility model

[0020] Figure 4 It is a structural schematic diagram of the module base of the utility model.

[0021] In the figure: 1. Reactor shell; 2. Reactor top cover; 3. Partition; 4. Right air chamber; 5. Left air chamber; 6. Module base; 7. Catalyst assembly frame; 8. Catalyst element; 9. Aluminum silicate fiber felt; 10. Air inlet; 11. Air outlet; 12. Insulation layer; 13. Column base; 14. Embedded steel plate. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] Embodiment 1

[0024] See also Figures 1 to 4 As shown, the utility model provides a technical solution, and the specific improvements are as follows:

[0025] A CO catalytic oxidation reactor comprises a reactor shell 1 and a reactor cover 2 arranged on the top surface of the reactor shell 1. The reactor has a temperature resistance of 350°C, and the influence of the temperature rise after the CO catalytic oxidation reaction is fully considered. The reactor size is 2860mm×1400mm, and the reactor height is 3900mm. The reactor shell 1 adopts Q355B. A plurality of fixed supports are arranged at the bottom of the reactor shell 1. The fixed supports include a column foot 13 and an embedded steel plate 14, and the bottom end of the column foot 13 is welded to the top surface of the embedded steel plate 14, and the welding adopts an E50 type welding rod. The reactor cover 2 is fixedly arranged on the top surface of the reactor shell 1 by fastening bolts. The reactor shell 1 is welded by frame steel and steel plates to form a closed space. An air inlet 10 is opened at the bottom of one side of the right air chamber 4, and an air outlet 11 is opened at the bottom of the front of the left air chamber 5. A partition 3 is fixedly arranged in the middle of the reactor shell 1. A right air chamber 4 and a left air chamber 5 are respectively arranged inside the reactor shell 1 and on both sides of the partition 3, and a module base 6 is arranged inside the right air chamber 4 and the left air chamber 5. A catalyst module is arranged on the top surface of the module base 6. There are 4 catalyst modules in total. The size of a single catalyst module is 1330mm×1330mm. The modules are arranged in series with a layer spacing of 700mm. Different types of catalysts can adjust the height of the catalyst module and the number of loaded modules according to the air speed, so as to experiment the relationship between the number of different loaded modules and the catalytic oxidation efficiency of CO. The catalyst module includes a catalyst assembly rack 7, and a plurality of catalyst elements 8 are arranged inside the catalyst assembly rack 7. An aluminum silicate fiber felt 9 is arranged between two adjacent catalyst elements 8, with a spacing of 5mm. The catalyst element 8 is a solid catalyst. The module base 6 and the catalyst module are sealed with a high-temperature resistant glass fiber sealing strip;

[0026] The flue gas enters the right air chamber 4 from the air inlet 10, and is discharged through the air outlet 11 after catalytic reaction in the catalyst module, forming an inverted U-shaped route. When the catalyst is replaced, the fastening bolts are turned to open the reactor top cover 2, and then the catalyst module is lifted and replaced as a whole using a lifting device.

[0027] Embodiment 2

[0028] Based on Example 1, please refer to Figure 1 , Figure 2 as well as Figure 4 The specific improvements are as follows:

[0029] A heat-insulating layer 12 is provided at the bottom of the inner wall of the reactor shell 1. The heat-insulating layer 12 can effectively prevent the heat dissipation of the flue gas.

[0030] Meanwhile, the contents not described in detail in this specification belong to the prior art known to those skilled in the art.

[0031] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A CO catalytic oxidation reactor, comprising a reactor shell (1) and a reactor top cover (2) arranged on the top surface of the reactor shell (1), characterized in that: A partition (3) is fixedly arranged in the middle of the reactor shell (1), a right air chamber (4) and a left air chamber (5) are arranged inside the reactor shell (1) and on both sides of the partition (3), and a module base (6) is arranged inside the right air chamber (4) and the left air chamber (5), and a catalyst module is arranged on the top surface of the module base (6); The catalyst module comprises a catalyst assembly frame (7), and a plurality of catalyst elements (8) are arranged inside the catalyst assembly frame (7), and an aluminum silicate fiber felt (9) is arranged between two adjacent catalyst elements (8).

2. A CO catalytic oxidation reactor according to claim 1, characterized in that: The catalyst element (8) is a solid catalyst, and a high-temperature resistant glass fiber sealing strip is used to seal between the module base (6) and the catalyst module.

3. A CO catalytic oxidation reactor according to claim 1, characterized in that: An air inlet (10) is provided at the bottom of one side of the right air chamber (4), and an air outlet (11) is provided at the bottom of the front side of the left air chamber (5).

4. A CO catalytic oxidation reactor according to claim 1, characterized in that: The reactor top cover (2) is fixed to the top surface of the reactor shell (1) by fastening bolts, and the reactor shell (1) is welded by frame steel and steel plates to form a closed space.

5. A CO catalytic oxidation reactor according to claim 1, characterized in that: A heat-insulating layer (12) is provided at the bottom of the inner wall of the reactor shell (1), and a fixed support is provided at the bottom of the reactor shell (1).

6. A CO catalytic oxidation reactor according to claim 5, characterized in that: The fixed support comprises a column foot (13) and an embedded steel plate (14), and the bottom end of the column foot (13) is welded to the top surface of the embedded steel plate (14).

Images