CN109887621B - Passive hydrogen-oxygen recombiner for nuclear power plant and gas treatment method thereof - Google Patents
Passive hydrogen-oxygen recombiner for nuclear power plant and gas treatment method thereof Download PDFInfo
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- CN109887621B CN109887621B CN201910081125.4A CN201910081125A CN109887621B CN 109887621 B CN109887621 B CN 109887621B CN 201910081125 A CN201910081125 A CN 201910081125A CN 109887621 B CN109887621 B CN 109887621B
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- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
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Abstract
The invention provides a nuclear power plant passive hydrogen-oxygen recombiner and a gas treatment method thereof, wherein the hydrogen-oxygen recombiner comprises a shell assembly, a flow guide assembly and a catalytic plate assembly, wherein the shell assembly is internally provided with a containing cavity, the flow guide assembly is arranged in the containing cavity, and the catalytic plate assembly is arranged at the bottom of the shell assembly; the flow guide assembly is used for dividing the accommodating cavity into a plurality of gas channels which extend from bottom to top, the bottom and the top of each gas channel are respectively provided with a gas inlet and a gas outlet, and the cross-sectional area of each gas channel is gradually reduced from the gas inlet to the gas outlet; the catalytic plate component is arranged close to the gas inlet and is used for catalyzing the gas entering the gas channel to perform hydrogen-oxygen composite reaction. The oxyhydrogen recombiner and the gas treatment method thereof provided by the invention can effectively prevent mutual interference among ascending gas flows and greatly enhance the suction capacity of equipment, so that the oxyhydrogen recombination reaction can be effectively carried out in time and hydrogen explosion is prevented.
Description
Technical Field
The invention relates to the technical field of nuclear power containment vessels, in particular to a nuclear power plant passive hydrogen-oxygen recombiner and a gas treatment method thereof.
Background
In the event of a design basis accident or a severe accident in a nuclear power plant, some of the hydrogen gas, such as the zirconium water reaction, the core coolant and the radiolysis of water, is produced in large quantities and released into the containment vessel through the pressure boundary of the main circuit or the breach of the pressure vessel. After the hydrogen and the air in the containment vessel are fully mixed, phenomena such as combustion, deflagration or explosion can be formed, and the integrity of the containment vessel can be endangered by the static and dynamic pressure loads generated by the phenomena, so that the safety system of the containment vessel can be influenced to effectively perform the safety function. In the middle of eighty generations, a new technology based on catalytic oxidation of hydrogen and oxygen is developed, and in the nineties, research on the technology is comprehensively developed, and a passive hydrogen-oxygen recombiner based on the technology is developed.
At present, a catalyst plate is fixedly arranged at the bottom of an oxyhydrogen recombiner commonly used in a containment vessel of a nuclear power plant, and air enters the oxyhydrogen recombiner through a bottom channel and is catalyzed at the catalyst plate to carry out oxyhydrogen recombination. The heat generated by the catalytic reaction raises the temperature of the mixed fluid at the place, reduces the density, and flows upwards in the internal channel of the hydrogen-oxygen recombiner, which is generally called as chimney effect. However, the areas of the vertical flow channels of the conventional oxyhydrogen recombiner on each flow cross section are equal, the pumping capacity of the chimney effect is limited, and meanwhile, as the flow guide assemblies are not arranged in the vertical flow channels, airflow interference may occur to cause unsmooth flow, the pumping capacity of the conventional oxyhydrogen recombiner is limited, the oxyhydrogen recombination reaction cannot be timely and effectively carried out, and the integrity of the containment vessel may be endangered in severe cases.
Disclosure of Invention
The invention provides a nuclear power plant passive hydrogen-oxygen recombiner and a gas treatment method thereof, aiming at the problems of limited chimney effect pumping capacity, mutual disturbance of internal gas and large outlet flow resistance of the existing hydrogen-oxygen recombiner, and can effectively recombine hydrogen and oxygen in time, prevent hydrogen explosion and ensure the integrity of a containment.
The technical scheme of the invention for solving the technical problems is as follows: in one aspect, a passive hydrogen-oxygen recombiner for a nuclear power plant is provided, comprising:
a housing assembly having a receiving cavity therein;
the flow guide assembly is arranged in the accommodating cavity and is used for dividing the accommodating cavity into a plurality of gas channels which extend from bottom to top, the bottom and the top of each gas channel are respectively provided with a gas inlet and a gas outlet, and the cross-sectional area of each gas channel is gradually reduced from the gas inlet to the gas outlet;
and the catalytic plate assembly is arranged at the bottom of the shell assembly and is close to the air inlet and used for catalyzing the gas entering the gas channel to perform a hydrogen-oxygen composite reaction.
In the oxyhydrogen recombiner, the shell assembly comprises a three-dimensional frame and a mask assembly attached to the outside of the three-dimensional frame to form the accommodating cavity, the section of the three-dimensional frame in the longitudinal direction is in an isosceles trapezoid shape, openings communicated with the accommodating cavity are respectively arranged in the upper areas of the bottom and the side wall of the mask assembly, and the air inlet and the air outlet are respectively arranged on the openings in the upper areas of the bottom and the side wall of the mask assembly.
In the above oxyhydrogen recombiner of the invention, the catalytic board assembly comprises a drawer frame mounted at the bottom of the three-dimensional frame and a plurality of drawers mounted in the drawer frame, and a plurality of catalytic boards arranged at intervals are mounted in the drawers; the top and the bottom of the drawer are respectively provided with an opening, the top opening of the drawer is used for being communicated with the gas inlet, and the bottom opening of the drawer is used for introducing gas so as to be catalyzed in the gap of the catalytic plate to perform hydrogen-oxygen composite reaction.
In the oxyhydrogen recombiner, the mask assembly comprises two side masks oppositely arranged at two sides of the three-dimensional frame in the length direction, and a front mask and a rear mask oppositely arranged at two sides of the three-dimensional frame in the width direction; the top end of the side face mask plate is arc-shaped, and the side face mask plate, the front mask plate and the rear mask plate are enclosed to form a bottom opening of the mask plate assembly.
In the oxyhydrogen recombiner, the mask assembly further comprises a top mask arranged at the top ends of the two side masks, the cross section of the top mask is arc-shaped, one side edge of the top mask is connected with the rear mask, and the other side edge of the top mask and the front mask are positioned on the same plane and form an opening at the upper area of the side wall of the mask assembly at an interval with the front mask.
In the oxyhydrogen recombiner, the three-dimensional frame comprises a trapezoid body frame and a rectangular frame, the section of the trapezoid body frame in the long direction is in an isosceles trapezoid shape, and the rectangular frame is vertically arranged in the middle of the trapezoid body frame along the width direction of the trapezoid body frame.
In the above oxyhydrogen recombiner of the invention, the flow guide assembly comprises a trapezoidal plate installed in the trapezoidal frame, a middle plate installed in the rectangular frame and a plurality of inclined plates symmetrically installed at two sides of the middle plate;
the trapezoidal plate is matched with the long-direction section of the trapezoidal body frame; the bottom of swash plate is pegged graft on trapezoidal plate, the top of swash plate is in towards the intermediate lamella slope and support and be in on the top mask, trapezoidal plate, intermediate lamella and the swash plate be used for with separate on the bottom opening of mask subassembly and form a plurality ofly the air inlet.
In the above oxyhydrogen recombiner of the invention, the flow guide assembly further comprises a sector plate and a plurality of steering plates, one side of the sector plate is connected with the rectangular frame, and the other side of the sector plate is positioned on the opening of the upper area of the side wall of the mask assembly; the cross section of the steering plate is arc-shaped, one side edge of the steering plate is connected with the trapezoidal plate, and the other side edge of the steering plate is positioned on the opening of the upper area of the side wall of the mask assembly;
the steering plate, the sector plate and the inclined plate are used for dividing the opening of the upper area of the side wall of the mask assembly to form a plurality of exhaust ports.
In the oxyhydrogen recombiner, the grid net is arranged on the opening of the upper area of the side wall of the mask assembly, and the grid net is fixedly connected with the side mask, the front mask and the top mask and used for protecting the exhaust port.
In another aspect, there is provided a gas treatment method of the above hydrogen-oxygen recombiner, comprising the steps of:
s1, introducing gas into the hydrogen-oxygen recombiner through an opening at the bottom of the catalytic plate assembly, and catalyzing the gas at the catalytic plate assembly to perform hydrogen-oxygen recombination reaction;
s2, enabling the reacted gas to enter the gas channel from the gas inlet at the bottom of the gas channel and flow upwards under the pumping action of the gas channel with the cross section area gradually reduced from the gas inlet to the gas outlet in the hydrogen-oxygen composite reaction;
and S3, discharging the gas out of the hydrogen-oxygen recombiner through a gas outlet at the top of the gas channel.
In conclusion, the passive hydrogen-oxygen recombiner for the nuclear power plant and the gas treatment method thereof provided by the invention have the advantages that the internal accommodating cavity of the shell component is divided into the plurality of gas channels by the flow guide component, the cross section area of each gas channel is gradually reduced from the gas inlet to the gas outlet, the suction capacity of the chimney effect can be greatly enhanced, the flow guide component can effectively prevent mutual interference among ascending gas flows, and the stable circulation of gas is ensured; therefore, the hydrogen-oxygen recombiner can realize timely and effective hydrogen-oxygen recombination reaction when a large amount of hydrogen is generated in a serious accident of a nuclear power plant, prevent hydrogen explosion and ensure the integrity of a containment.
Drawings
The invention will be further described with reference to the accompanying drawings and examples, in which:
FIG. 1 is a schematic diagram of a hydrogen-oxygen recombiner according to an exemplary embodiment of the present invention;
FIG. 2 is another schematic diagram of a configuration of a hydrogen-oxygen recombiner in accordance with an exemplary embodiment of the present invention;
FIG. 3 is a schematic side view of a hydrogen-oxygen recombiner according to an exemplary embodiment of the present invention;
FIG. 4 is a schematic structural view of a space frame and a drawer frame in the oxyhydrogen recombination apparatus according to an exemplary embodiment of the present invention;
FIG. 5 is a schematic diagram illustrating the construction of a catalytic plate assembly in a hydrogen-oxygen recombiner in accordance with an exemplary embodiment of the present invention;
FIG. 6 is a schematic diagram illustrating the configuration of a flow directing assembly in a hydrogen-oxygen recombiner in accordance with an exemplary embodiment of the present invention;
FIG. 7 is a schematic diagram illustrating the configuration of the inclined plates of the flow guide assembly in the oxyhydrogen recombiner according to an exemplary embodiment of the invention;
FIG. 8 is a schematic flow diagram illustrating a gas treatment process for a hydrogen-oxygen recombiner in accordance with an exemplary embodiment of the present invention.
Detailed Description
In order that those skilled in the art will more clearly understand the present invention, the present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
Aiming at the problems of limited chimney effect suction capacity, easy mutual disturbance of internal air passages, large outlet flow resistance and the like of the conventional oxyhydrogen recombiner, the invention aims to provide a nuclear power plant passive oxyhydrogen recombiner and a gas treatment method thereof, and the core idea is as follows: the hydrogen-oxygen recombiner adopts the flow guide assembly to divide the internal accommodating cavity of the shell assembly into a plurality of gas channels, and the cross section of each gas channel is gradually reduced from the gas inlet to the gas outlet, so that the pumping capacity of a chimney effect can be greatly enhanced; meanwhile, the flow guide assembly can effectively prevent mutual interference between ascending airflows, guarantee stable circulation of the gases and improve the reaction efficiency of the hydrogen-oxygen recombiner.
Referring to fig. 1, 2 and 3, the passive oxyhydrogen recombiner provided by the embodiment of the disclosure includes a housing assembly having a receiving cavity therein, a flow guide assembly 20 installed in the housing assembly, and a catalytic plate assembly 40 installed at the bottom of the housing assembly. The flow guide assembly 20 is used for dividing the accommodating cavity into a plurality of gas channels 30 extending from bottom to top, the bottom and the top of each gas channel 30 are respectively provided with a gas inlet and a gas outlet, and the cross-sectional area of each gas channel 30 is gradually reduced from the gas inlet to the gas outlet; a catalyst plate assembly 40 is disposed adjacent to each of the gas inlets for catalyzing the hydrogen-oxygen recombination reaction of the gas entering the gas channel 30.
In this process, the gas increases in temperature and decreases in density due to the heat generated by the catalytic reaction, and thus may flow upward in the gas channel 30. The flow area of the gas channel 30 is gradually smaller, so that the pumping capacity of the chimney effect is greatly enhanced; meanwhile, the flow guide assembly 20 divides the accommodating cavity into a plurality of gas channels, so that mutual disturbance among gases can be avoided, and the pumping capacity of the oxyhydrogen recombiner is enhanced.
Further, as shown in fig. 4, the housing assembly includes a three-dimensional frame 10 and a mask assembly 50 which is welded outside the three-dimensional frame 10 to form the cavity, a long section of the three-dimensional frame 10 is in an isosceles trapezoid shape, the bottom of the mask assembly 50 and the upper area of the sidewall are respectively provided with an opening communicated with the cavity, the air inlet is located on the opening at the bottom of the mask assembly 50, and the air outlet is located on the opening at the upper area of the sidewall of the mask assembly 50.
Further, as shown in fig. 5, the catalyst plate assembly 40 includes a drawer frame 41 installed at the bottom of the space frame 10 and a plurality of drawers 42 installed in the drawer frame 41, and a plurality of catalyst plates 43 vertically arranged at intervals are installed in the drawers 42. Wherein, the drawer frame 41 is cuboid, the top and the bottom of the drawer 42 are respectively provided with an opening for gas circulation, the top opening of the drawer 42 is communicated with the gas inlet, the bottom opening of the drawer 42 is used for introducing gas into the oxyhydrogen recombiner, and the gas is catalyzed in the gap between the catalytic plates 43 to carry out oxyhydrogen recombination reaction.
In this embodiment, the number of the drawers 42 is two, and the two drawers 42 are arranged along the length direction of the drawer frame 41; the oxyhydrogen recombiner still includes bottom mask 44, and bottom mask 44 laminating welding respectively is between the length direction both sides of drawer frame 41, the rear side of drawer frame 41 and two drawers 42 for enclose and form the lateral wall opening of getting and put each drawer 42, conveniently change catalysis board 43.
The three-dimensional frame 10 comprises a trapezoidal body frame 11 formed by splicing a plurality of angle steels and a rectangular frame 12, wherein the rectangular frame 12 is vertically arranged in the middle of the trapezoidal body frame 11 along the width direction of the trapezoidal body frame 11; the longitudinal section of the trapezoidal body frame 11 is isosceles trapezoid. Preferably, the angle between the side angle and the bottom angle of the trapezoid frame 11 is 78 ° to ensure the best pumping capacity of the gas channel.
The mask assembly 50 comprises two side masks 51 which are oppositely attached and welded on two sides of the stereoscopic frame 10 in the length direction, and a front mask 52 and a rear mask 53 which are oppositely attached and welded on two sides of the stereoscopic frame 10 in the width direction, wherein the top end of the side mask 51 is arc-shaped, the front mask 52 and the rear mask 53 are both in a ladder shape, and the two side masks 51, the front mask 52 and the rear mask 53 enclose to form a bottom opening of the mask assembly 50;
the mask assembly 50 further includes a top mask 54 welded to the top ends of the two side masks 51, the cross section of the top mask 54 is in a quarter-arc shape, one side of the top mask 54 is welded to the rear mask 53, and the other side of the top mask 54 is located on the same plane as the front mask 52 and spaced from the front mask 52 to form an opening in the upper region of the side wall of the mask assembly 50.
In the present embodiment, the thickness of each of the masks in the mask assembly 50 is preferably 2 mm.
The upper opening of the side wall of the mask assembly 50 is further provided with a grid mesh 60, and the grid mesh 60 is respectively connected with the side mask 51, the front mask 52 and the top mask 54 in a welding manner and used for protecting the exhaust port. In this embodiment, the grid mesh 60 is woven from vertically staggered iron strips, and the profile thereof is trapezoidal.
In other embodiments of the present invention, the top of the side mask 51 is further opened, and the grid net is installed on the top opening of the side mask 51, so as to increase the area of the exhaust port of the oxyhydrogen synthesizer.
Further, as shown in fig. 6 and 7, the flow guide assembly 20 includes a trapezoidal plate 21, a middle plate 22, and a plurality of inclined plates 23 installed on both sides of the middle plate 22 in a pairwise symmetrical manner; the trapezoidal plates 21 are welded in the trapezoidal body frame 11, and the trapezoidal plates 21 are in an isosceles trapezoid shape, are matched with the long-direction section of the trapezoidal body frame 11 and are used for dividing the accommodating cavity into a front part and a rear part; the inclined plate 23 consists of a rectangular plate at the bottom and a fan-shaped plate at the top, a slot with the same height as the trapezoidal plate 21 is further formed in the bottom of the inclined plate 23, the bottom end of the inclined plate 23 is inserted into the trapezoidal plate 21 through the slot, and the top end of the inclined plate 23 inclines towards the middle plate 22 and abuts against the top mask 54; in this embodiment, the bottom of the trapezoidal plate 21, the middle plate 22 and the inclined plate 23 are located on the bottom opening of the mask assembly 50, and are used for partitioning the bottom opening of the mask assembly 50 to form a plurality of air inlets;
the flow guide assembly 20 further comprises a sector plate 25 and a plurality of steering plates 24, wherein the sector plate 25 is a quarter circle, one side edge of the sector plate 25 is welded and connected to the rectangular frame 12, the other side edge of the sector plate 25 is located on an opening of the upper area of the side wall of the covering plate assembly 50, and the arc-shaped section of the sector plate 25 is welded and connected to the top covering plate 54; the cross section of the steering plate 24 is in a quarter-arc shape, one side edge of the steering plate 24 is welded and connected to the trapezoidal plate 21, and the other side edge is positioned on an opening of the upper area of the side wall of the covering plate assembly 50; the top end sides of the turning plate 24, the sector plate 25 and the inclined plate 23 are positioned on the upper area opening of the side wall of the mask assembly 50 and are used for dividing the upper area opening of the side wall of the mask assembly 50 to form a plurality of exhaust ports.
In this embodiment, the number of the inclined plates 23 is two, the number of the turning plates 24 is four, and the flow guide assembly 20 is used for dividing the accommodating cavity to form eight gas channels 30. Of course, a person skilled in the art can also achieve the technical effects of the present invention by changing the structure of the flow guiding assembly 20, for example, by integrally forming the diversion plate 24, or changing the number of the inclined plates 23, thereby changing the number of the gas passages, and the description of this embodiment is omitted.
As shown in FIG. 8, FIG. 8 shows a gas treatment method of the oxyhydrogen recombiner in the above embodiment, comprising the steps of:
s1, introducing gas into the hydrogen-oxygen recombiner through an opening at the bottom of the catalytic plate assembly 40, and catalyzing the gas at the catalytic plate assembly 40 to perform hydrogen-oxygen recombination reaction;
s2, the reacted gas enters the gas channel 30 from the gas inlet at the bottom of the gas channel 30 and flows upwards under the actions of hydrogen-oxygen composite reaction and suction of the gas channel 30 with the cross section area gradually reduced from the gas inlet to the gas outlet;
and S3, discharging the gas out of the hydrogen-oxygen recombiner through a gas outlet at the top of the gas channel 30.
In step S2, the hydrogen-oxygen recombination reaction acts to increase the temperature and decrease the density of the gas therein by the heat generated by the hydrogen-oxygen recombination reaction, thereby generating a "chimney effect" to allow the gas to flow upward in the gas channel.
It can be clearly understood by those skilled in the art that, for convenience and brevity of description, the gas treatment method described above may refer to the gas treatment method corresponding to the oxyhydrogen recombiner provided in the foregoing embodiments, and will not be described herein again.
In conclusion, the invention provides a nuclear power plant passive hydrogen-oxygen recombiner and a gas treatment method thereof, which have the following beneficial effects:
the hydrogen-oxygen recombiner adopts the flow guide assembly to divide the internal accommodating cavity of the shell assembly into a plurality of gas channels, and the cross section area of each gas channel is gradually reduced from the gas inlet to the gas outlet, so that the pumping capacity of a chimney effect is greatly enhanced; meanwhile, the flow guide assembly can effectively prevent mutual interference between ascending airflows and ensure stable circulation of the gas; in addition, the exhaust port of the oxyhydrogen recombiner is designed into a streamline structure through a top mask, so that the flow resistance of the outlet is reduced, and the exhaust is facilitated; therefore, the hydrogen-oxygen recombiner can realize timely and effective hydrogen-oxygen recombination reaction when a large amount of hydrogen is generated in a serious accident of a nuclear power plant, prevent hydrogen explosion and ensure the integrity of a containment.
It will be understood that modifications and variations can be made by persons skilled in the art in light of the above teachings and all such modifications and variations are intended to be included within the scope of the invention as defined in the appended claims.
Claims (10)
1. The utility model provides a passive oxyhydrogen recombiner of nuclear power plant which characterized in that includes:
a housing assembly having a receiving cavity therein;
the flow guide assembly (20) is arranged in the accommodating cavity and is used for dividing the accommodating cavity into a plurality of gas channels (30) extending from bottom to top; the bottom and the top of the gas channel (30) are respectively provided with a gas inlet and a gas outlet, and the cross-sectional area of the gas channel (30) is gradually reduced from the gas inlet to the gas outlet;
the catalytic plate assembly (40) is arranged at the bottom of the shell assembly, and the catalytic plate assembly (40) is arranged close to the gas inlet and is used for catalyzing the gas entering the gas channel (30) to perform hydrogen-oxygen composite reaction;
the shell assembly comprises a three-dimensional frame (10) and a mask assembly (50) attached to the outside of the three-dimensional frame (10) to form the accommodating cavity, the section of the long direction of the three-dimensional frame (10) is in an isosceles trapezoid shape, and the top end of the mask assembly (50) is in an arc shape.
2. The oxyhydrogen recombiner according to claim 1, wherein the bottom and upper side wall areas of the mask assembly (50) are provided with openings communicating with the housing chamber, respectively, and the gas inlet and outlet are provided on the bottom and upper side wall area openings of the mask assembly (50), respectively.
3. The oxyhydrogen recombination device according to claim 2, wherein the catalytic board assembly (40) comprises a drawer frame (41) installed at the bottom of the space frame (10) and a plurality of drawers (42) installed in the drawer frame (41), the drawers (42) are installed with a plurality of catalytic boards (43) arranged at intervals; the top and the bottom of the drawer (42) are respectively provided with an opening, the top opening of the drawer (42) is used for communicating with the gas inlet, and the bottom opening of the drawer (42) is used for introducing gas to be catalyzed in the gap of the catalytic plate (43) to perform hydrogen-oxygen composite reaction.
4. The oxyhydrogen recombiner according to claim 2, wherein the mask assembly (50) comprises two side masks (51) oppositely installed at both sides of the space frame (10) in a length direction, a front mask (52) and a rear mask (53) oppositely installed at both sides of the space frame (10) in a width direction; the top end of each side face mask (51) is arc-shaped, and the two side face masks (51), the front mask (52) and the rear mask (53) are enclosed to form a bottom opening of the mask assembly (50).
5. The oxyhydrogen recombination device according to claim 4, wherein the mask assembly (50) further comprises a top mask (54) mounted on top of the two side masks (51), the top mask (54) having a circular arc-shaped cross section, one side of which is connected to the rear mask (53), the other side of which is located on the same plane as the front mask (52) and spaced from the front mask (52) to form an opening in the upper area of the side wall of the mask assembly (50).
6. The oxyhydrogen recombiner according to claim 5, wherein the solid frame (10) comprises a trapezoidal frame (11) and a rectangular frame (12), the cross section of the trapezoidal frame (11) in the long direction is isosceles trapezoid, the rectangular frame (12) is vertically installed at the middle position of the trapezoidal frame (11) along the width direction of the trapezoidal frame (11).
7. The oxyhydrogen recombiner according to claim 6, wherein the flow guide assembly (20) comprises a trapezoidal plate (21) installed in the trapezoidal frame (11), a middle plate (22) installed in the rectangular frame (12), and a plurality of inclined plates (23) symmetrically installed at both sides of the middle plate (22);
the trapezoidal plate (21) is matched with the long-direction section of the trapezoidal body frame (11); the bottom end of the inclined plate (23) is inserted into the trapezoidal plate (21), the top end of the inclined plate (23) inclines towards the middle plate (22) and abuts against the top mask (54), and the trapezoidal plate (21), the middle plate (22) and the inclined plate (23) are used for partitioning the bottom opening of the mask assembly (50) to form a plurality of air inlets.
8. The oxyhydrogen recombiner according to claim 7, wherein the flow guide assembly (20) further comprises a sector plate (25) and a plurality of turning plates (24), one side of the sector plate (25) is connected to the rectangular frame (12), the other side of the sector plate (25) is located on the side wall upper region opening of the mask assembly (50); the cross section of the steering plate (24) is arc-shaped, one side edge of the steering plate is connected with the trapezoidal plate (21), and the other side edge of the steering plate is positioned on an opening of the upper area of the side wall of the mask assembly (50);
the steering plate (24), the sector plate (25) and the inclined plate (23) are used for dividing the upper area opening of the side wall of the mask assembly (50) to form a plurality of exhaust ports.
9. The oxyhydrogen recombiner according to claim 5, wherein a grid net (60) is installed on the opening of the upper area of the side wall of the mask assembly (50), and the grid net (60) is fixedly connected with the side mask (51), the front mask (52) and the top mask (54) for protecting the exhaust port.
10. The gas treatment method of hydrogen-oxygen recombiner as recited in any one of claims 1 to 9, comprising the steps of:
s1, introducing gas into the hydrogen-oxygen recombiner through an opening at the bottom of the catalytic plate assembly (40), and catalyzing the gas at the catalytic plate assembly (40) to perform hydrogen-oxygen recombination reaction;
s2, the reacted gas enters the gas channel (30) from the gas inlet at the bottom of the gas channel (30) and flows upwards under the actions of hydrogen-oxygen recombination reaction and pumping of the gas channel (30) with the cross section area gradually reduced from the gas inlet to the gas outlet;
s3, discharging the gas out of the hydrogen-oxygen recombiner through a gas outlet at the top of the gas channel (30).
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| CN113130100A (en) * | 2021-04-09 | 2021-07-16 | 哈尔滨工程大学 | Axial optimization device for hydrogen recombiner assembly unit |
| CN113893689A (en) * | 2021-11-17 | 2022-01-07 | 中国核动力研究设计院 | Passive hydrogen recombiner with protection structure |
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