RU113404U1 - PASSIVE MULTI-TIRE AUTOCATALYTIC RECOMBINATOR OF HYDROGEN AND OXYGEN WITH A SEPARATE METHOD OF THE PROCESSED GAS ENVIRONMENT FOR EACH TIER - Google Patents

Abstract

1. Passive autocatalytic recombiner of hydrogen and oxygen, containing a hollow vertical housing and installed one above the other at least two tiers of catalytic blocks with through passages between the catalytic elements in each block, characterized in that in the walls of the housing under each catalytic block above the lower of the tier, an opening is provided for an independent intake of the processed gas medium, and the space of the housing above each catalytic unit is separated by means of internal partitions from the areas of the intake of the specified medium. ! 2. Passive catalytic recombiner according to claim 1, characterized in that the space of the housing above each catalytic unit is organized as a separate exhaust duct. ! 3. Passive catalytic recombiner according to claim 1, characterized in that the space of the housing above each catalytic unit is organized as a separate branch into a common exhaust duct.

Description

The technical field to which the utility model relates.

The utility model relates to the field of hydrogen safety and can be used to prevent the accumulation of flammable and explosive hydrogen in rooms, in particular, when hydrogen leaks from plants (for example, from the cooling system of power plant generators), in hydrogen storage facilities, during storage of nuclear waste (where hydrogen is constantly formed as a result of radiolysis of water and organic substances), during high-temperature corrosion processes, during accidents at nuclear power plants, etc.

State of the art

Known passive autocatalytic recombiner of hydrogen and oxygen, containing a hollow vertical casing and installed in it a catalytic unit with through passages between the catalytic elements (RU 2179758, G21C 9/06, 2002 - analog). The disadvantage of this recombinant is the low specific productivity due to the relatively small amount per unit flow area of the catalyst placed in it.

A passive autocatalytic hydrogen and oxygen recombiner is known, containing a hollow vertical casing and several layers of catalytic units installed in it one above the other with through passages between the catalytic elements in each unit (WO 0030122, G21C 19/317, 2000 - the closest analogue). Due to the multi-tiered design, a significant increase in specific productivity was expected in this recombiner. However, with the sequential passage of the treated gas mixture through the belt-mounted catalytic units, each subsequent catalytic unit receives more and more significantly hydrogen-depleted mixture, so that an increase in the specific productivity of the recombinant cannot be achieved.

Utility Model Disclosure

The purpose of the utility model is to increase the specific productivity of the recombiner per unit flow area, and the technical result achieved is to ensure the intake of fresh hydrogen-containing gas mixture into each tier-shaped catalytic unit.

The indicated purpose and technical result of the utility model is ensured by the fact that in the walls of the casing of a passive autocatalytic hydrogen and oxygen recombiner containing a hollow vertical casing and at least two tiers of catalytic units installed in it one above the other with through passages between the catalytic elements in each block, according to of the utility model, under each catalytic unit above the lower tier there is an opening for independent intake of the processed gas medium, and the housing space is each catalytic unit is separated by internal walls of the fence regions of said medium. At the same time, the housing space above each catalytic unit can be organized as a separate discharge box or as a separate outlet into a common discharge box.

Brief Description of the Drawings

Figure 1 schematically shows a recombiner according to a utility model in the embodiment with a separate discharge box above each catalytic unit; figure 2 is the same in the embodiment with a common for all catalytic blocks dump box.

Detailed description of the recombiner

A passive autocatalytic hydrogen and oxygen recombiner, contains a hollow vertical casing 1 and two tiers installed one above the other in the example of Fig. 1, in the example of Fig. 2 three tiers of the catalytic blocks 2 with through passages (not shown) between the catalytic elements 3 in each block 2. In the walls of the housing 1 under each catalytic block 2 above the lower tier there is an opening 4 for independent intake of the treated gas medium. The space of the housing 1 above each catalytic unit 2 is separated by internal partitions 5 from the areas of the fence of the specified environment. The space of the housing 1 above each catalytic unit 2 is organized in the form of a separate discharge box 6.7 (Fig. 1) or as a separate outlet into a common discharge box 8.

Recombinant Operation Description

Passive autocatalytic recombinant of hydrogen and oxygen according to the utility model works as follows. When the hydrogen-containing gas comes into contact with the catalytic units 2 on the surface of their catalytic elements 3, a chemical reaction of recombination of hydrogen and oxygen begins, heating the catalytic units 2, due to which a convective flow is formed through the recombiner body 1. The gas mixture with the products of recombination exit the upper part of the housing 1 through separate for each catalytic unit discharge boxes 6.7 or through a common discharge box 8.

Due to the organization of the intake of fresh hydrogen-containing gas mixture into each tier-mounted catalytic unit 2, the specific productivity of the recombinant per unit of the passage section of its body is significantly increased. In addition, due to convection from the heat of the lower tier of the inner partition 5, the flow rate of the gas mixture through the upper catalyst blocks 2 is further increased.

Claims (3)

1. A passive autocatalytic hydrogen and oxygen recombiner containing a hollow vertical casing and at least two tiers of catalytic units installed in it one above the other with through passages between the catalytic elements in each unit, characterized in that in the case walls under each catalytic unit are higher than the lower the tier is provided with an opening for the independent intake of the processed gas medium, and the housing space above each catalytic unit is separated by internal partitions from the regions abord said medium. 2. The passive catalytic recombiner according to claim 1, characterized in that the housing space above each catalytic unit is organized as a separate discharge box. 3. The passive catalytic recombiner according to claim 1, characterized in that the housing space above each catalytic unit is organized as a separate outlet into a common discharge box.