RU31975U1 - ANTI-GAS BOX - Google Patents

Description

Gas box

The utility model relates to personal respiratory protective equipment against organic vapors (benzene, toluene, cyclohexane, etc.), inorganic (chlorine, sulfur hydride, hydrogen cyan, etc.) and acidic (sulfur dioxide, hydrogen chloride, hydrogen fluoride, etc.) of gases and vapors, toxic substances (chlorocyan, phosgene, sarin, etc.), ammonia, and also aerosols.

The gas mask box GP-7k TU G-10-1104-82 is known. Elektrostal containing a body, a bottom, grids, a dust swab, an aerosol filter and a charge is a carbon adsorbent with copper, chromium, silver and triethylenediamine compounds RU No. 2108149, class. BO1J20 / 20, СО1В31 / 08, 02.20.1997, which provides protection against toxic substances, organic vapors, inorganic and acid gases and vapors, aerosols.

The disadvantage of the GP-7k box is the lack of protection from ammonia and the insufficiently high protective time for inorganic and acid gases and vapors.

Known absorbent box of small size PPF-95M brand KD JSC "Himconverse Industrial personal protective equipment for respiratory and skin. Catalog. Moscow, 1997, p. 11, 19. similar to the device box GP-7k and containing a housing bottom. nets, dust swab and charge - carbon adsorbent with copper sulfate. This box protects against ammonia and sulfur hydride.

The drawback of the KP brand PPF-95M box is the lack of the possibility of HOI inorganic reduction (except for sulfur hydride and acidic ayu and peers

based on activated carbon with copper and chromium compounds KS catalyst according to TU 2178-006-05795731-99, Perm and adsorbent layer based on activated carbon with nickel chloride Chemical ammonia absorber HPA-N according to TU 616-3125-91, g. Elektrostal. The well-known gas box is produced according to TU 6-00-05795731-252-96 "Absorbing box of small size and a set of drawings of aircraft 13339.00.00 BC, Perm. The volume ratio of the layers in this box is 1: 1. Known box protects against organic vapors, inorganic and acid gases and vapors, toxic substances, ammonia.

The disadvantage of an absorbing box of small dimensions of the VK brand is the insufficiently high time of protective action.

The authors were faced with the task of developing a gas mask for absorbing organic vapors, inorganic and acid gases and vapors, toxic substances, ammonia with a sufficiently high protective action time, with and without aerosol protection.

The result is achieved by the fact that:

1 The gas mask box consisting of a body, a bottom, nets, an anti-dust swab contains a mixture including adsorbent layers: the first is based on activated carbon with oxides and salts of copper and chromium, alkaline compounds of potassium and / or sodium, the second is based on active carbon with nickel chloride and / or copper sulfate, with the layers taken in a volume ratio of 1: (0.8-1.2), respectively.

2 The adsorbent of the first layer further comprises silver oxide and / or triethylenediamine.

3 The gas mask box additionally contains an aerosol filter.

The proposed gas mask box is shown in the drawing. She soya and, corps. bottom 2. nets 3. protvpopy.teva swab 4. stitching solely; about srilgra 5 and there was a mixture of C and. No fsh. 1 Representative of a gas mask box; prnvoaerosol about the filter. Figure 2 presents a variant of a gas mask box with an anti-air filter.

Gas box works as follows.

When inhaling, air through the hole in the bottom 2 enters the inside of the gas box. After passing through the aerosol filter 5 and the charge layers 6 and 7, fixed in the housing 1 by nets 3. and also through the dust swab 4, the air is cleaned and through the threaded neck of the housing enters the mask space of the front of the gas mask and is used for breathing.

The difference of the proposed gas mask box is that:

the adsorbent of the first layer of the mixture further comprises alkaline compounds of potassium and / or sodium;

the adsorbent of the first charge layer further comprises silver oxide and / or triethylenediamine;

- copper sulfate is used as an interchangeable component with nickel chloride;

-the charge consists of layers taken in a volume ratio of 1: (0.8-1.2), respectively;

The gas mask box additionally contains an aerosol filter.

The adsorbent layer containing activated carbon, oxides and salts of copper and chromium, alkaline compounds of potassium and / or sodium in the box provides absorption of organic vapors, inorganic and acid gases and vapors, toxic substances.

The copper oxides in the adsorbent are necessary for the absorption of inorganic gases and vapors and, to a lesser extent, acid gases and vapors.

Oxides and salts of copper and chromium in the adsorbent are necessary for the absorption of toxic substances.

Silver oxide in the adsorbent is necessary for the oxidation of arsenic hydrogen by atmospheric oxygen.

Triethylenediamine in the adsorbent is necessary to increase the time of the protective action of chlorocyanine in conditions of high humidity.

A layer of adsorbent containing activated carbon, nickel chloride, in a box provides absorption of organic vapor and ammonia.

A layer of adsorbent containing activated carbon, copper sulfate in a box provides absorption of organic vapors, sulfur hydride and ammonia.

The aerosol filter in the proposed box provides protection from dust, smoke, fog.

The use of a two-layer mixture with the proposed layers determines the versatility of the protection of the proposed gas box. In this case, the layers of the charge do not interfere with each other to absorb the corresponding substances and can be located in the box first in the direction of air, one or the other.

Data on the time of the protective action of the proposed gas box, as well as its prototype and analogues, are shown in table 1.

The data presented in table 1 show that the proposed box in comparison with the prototype has an increased protective time for sulfur dioxide and sulfur hydride, in comparison with the analogue GP-7k protects against ammonia and has an increased protective time for sulfur dioxide and hydride} sulfur , in comparison with the analog of PPFQ5M brand KD protects against sulfur dioxide, hydrogen cyan and chlorocyanine.

Information on the selection} of the ratio of the layers of the mixture are given in table 2.

The data presented in table 2. show that the optimal volumetric ratio of the layers of the charge in the proposed box 1: (() .- i .2) soo; Sun i with i vein. A decrease in the amount of adsorbent in the second layer of the charge is less than O.S or} a value of more than 1.2 leads to a significant) decrease in the time of the protective effect of the proposed box for one of each of the substances.

The friction level and the moisture content of adsorbents are similar for all boxes. 1 The average values and results of six tests under identical conditions. Syuppya nrni.i iiiiinii: volumetric flow rate (gas) of the vapor-air flow (30 ± 0.75) dm3 / min, relative humidity

 a (MN. 1 cm air temperature (20 + 5) C.

Ka1 batch composition in and in tiltable box

First junior oxides and salts of copper and chromium, alkaline potassium compounds, active uhl Second elephant charge nickel muride, activated carbon

Pen with ion nscx i s oxides and salts of copper and chromium, alkaline compounds of cathium and sodium, silver oxide, akspipyp m o and,

The second is a mixture with in, fat copper, active quenching The first cion iiiiixii.i is oxides and salts of copper and chromium, alkaline reading and sodium salts, silver oxide, three) 1 And tepdnump amtypol Tol Nyura s ti ti, nickel chloride, copper sulfate, ak1NPPYN I O II, 1 rimschanpe. the amount of adsorbents in the proposed box 460 cm

The proposed gas mask box has a fairly high protective time with protection against aerosols and without it for organic vapors, inorganic and acid gases and vapors, toxic substances, ammonia.

Experimental batches of the proposed gas mask box were manufactured and tested in laboratory conditions.

Further production of a gas mask box for various purposes is planned.

Claims (4)

1. Gas mask box, consisting of a body, a bottom, nets, an anti-dust swab and a two-layer charge, including adsorbent layers: the first is based on activated carbon with copper oxides and salts, and the second is based on activated carbon with nickel chloride, characterized in that the adsorbent the first layer, in addition to or instead of copper oxides, contains alkaline compounds of potassium and / or sodium, with the layers taken in a volume ratio of 1: (0.8-1.2), respectively. 2. The gas mask box according to claim 1, characterized in that the adsorbent of the first layer further comprises silver oxide and / or triethylenediamine. 3. Gas mask box according to claims 1 and 2, characterized in that the adsorbent of the second layer in addition to nickel chloride or instead of it contains copper sulfate. 4. Gas mask box according to claims 1 to 3, characterized in that it further comprises an aerosol filter.