RU2291937C1 - Modular laboratory complex and exhaust hood included in complex - Google Patents

Abstract

FIELD: laboratory equipment.

SUBSTANCE: invention relates to modular laboratory complexes for examination of volatile and dangerous substances, including chemical warfare agents and for destruction of chemical weapons. Proposed complex contains laboratory, recreation and technical modules. Laboratory module is separated from other modules by air lock chamber and it is equipment with emergency shower and face washer and modular laboratory equipment. Recreation module is provided with sanitary equipment and rest room. Technical module is provided with power supply, lighting, air conditioning, plenum-and-exhaust, water supply, water preparation with water cleaning and sewage systems. Complex is provided with emergency exit. Exhaust ventilation system contains additionally reserve system of absorbing filters with fans, and laboratory instruments and equipment are arranged in working zone of one exhaust hoods of modular design. Said hood consists of isolated sections installed with possibility of intercommunication. Volume of working chamber can be changed to correspond to tasks of examination.

EFFECT: provision of possibility of safe multioperation examination of volatile and dangerous chemical warfare agents.

11 cl, 2 dwg

Description

Laboratory complex for carrying out research when working with volatile and highly hazardous substances, including toxic substances.

The laboratory complex is intended for use in the destruction of chemical weapons in the armed forces, when working with biologically active substances of any nature that are hazardous to health, and when working with gaseous and volatile petroleum products also in the oil production and refining industries in various climatic conditions.

Known mobile, complete laboratory "CLAN-1" [1]. A mobile laboratory involves the placement of equipment and analysis to check the quality of petroleum products on a mobile vehicle.

A disadvantage of the well-known laboratory is its small area, limited by the size of the vehicle, and, as a result, the lack of safe and comfortable conditions necessary for conducting research when working with especially dangerous, including toxic substances in various climatic conditions.

Known collapsible modular laboratory complex [2], equipped with laboratory equipment of a modular design, including laboratory tables [3], instrument tables [4], weight tables [5], [6], single-section fume hoods [7], [8] , [9], [10], laboratory cabinets with sinks [11]. The complex contains three main blocks: laboratory block; a recreational unit with sanitary equipment, which also includes a room for rest and, possibly, reception and cooking; technical unit, including life support systems. The complex is easily and quickly mounted and dismantled, compactly transported to a new place and provides comfortable conditions for conducting analytical studies in various climatic conditions with an ambient temperature from -60 to + 50 ° С.

A disadvantage of the known modular laboratory complex is the lack of safe conditions when working with volatile and highly dangerous toxic substances.

Safety when working with volatile and especially dangerous toxic substances can be ensured by excluding direct contact of researchers with the air of the working area throughout the multi-operation research process, carrying out all research operations in the working area of one exhaust device.

A fume hood is known, which is a fume hood [12], designed for the simultaneous operation of three people with radioactive and toxic substances. The cabinet is made of metal and consists of an exhaust duct, a working chamber and a base. The front wall of the working chamber has three openings covered by three transparent up and down movable screens. The countertop has a front side and an opening for a drain device.

A disadvantage of the known fume hood is that it is a bulky single-section design, inconvenient for transportation and installation in operation, not suitable for multi-operation studies of volatile and highly dangerous toxic substances.

The main objective of the invention is the creation of a modular laboratory complex that ensures the safe conduct of multioperational studies of volatile and highly hazardous toxic substances.

The safe conduct of studies of volatile and highly hazardous toxic substances, including work on analytical instruments, weighing, and also washing of used dishes, is possible during the entire multi-operation research process in the working chamber of one fume hood, eliminating the contact of the substance under study with the surrounding air. At the same time, each research operation should be carried out in the working chamber of a fume hood, the air of which is isolated from the air in which other research operations are performed.

The technical result consists in the creation of a modular laboratory complex, and a modular fume hood providing safe multi-operation studies of volatile and highly hazardous toxic substances.

The technical result is achieved by the fact that the modular laboratory complex has an additional emergency exit, and the laboratory unit is equipped with an emergency shower and a face wash.

The technical result is achieved in that the exhaust ventilation system further comprises a backup system of absorbing filters with fans.

The technical result is achieved by the fact that the modular laboratory complex is equipped with a fume hood of a modular design, which consists of isolated sections that can communicate with each other, and allows you to change the volume of the working chamber depending on the tasks of the study. The number of sections is determined by the number of research operations performed.

The fume hood consists of a working chamber 1, base 2 and is divided into sections 3. Each section has its own air duct. The working chamber is divided into sections by vertical partitions located parallel to the side wall. In the lower part of the partition 4 and / or the side wall 5, and possibly the rear wall 6, there is a technological window 7, which is made with two curtains 8 moving left and right, moving along the guides between which the partition and / or the wall is located. The technological window may take the form of a vestibule gateway. The opening of the working chamber of each section is blocked by at least one screen moving up and down. The screen consists of two overlapping parts: the lower movable part 9 and the upper fixed, made in the form of two parallel surfaces with a gap, while the inner surface 10 of the fixed part of the screen has a bend 11 towards the working chamber. The lower part of the screen has openings for the hands 12 that extend externally into the corrugated tubes 13. The opening can additionally have a flap 14 movable in the direction of the pendulum, fixed above the upper part of the opening. The damper can be single or double, consisting of two surfaces of the same shape, fixed on an axis from the inside and outside of the screen. The countertop of the working chamber of each section additionally has a side rim 15 and a rear rim 16. The opening 17 for installing the drain device is located at a distance of at least 10 cm from the side wall or partition and can be separated from the rest of the countertop by a dividing rim 18, parallel to the partition from the front side to the rear side. The countertop of the working chamber is at the same time the countertop of the base and can be made with an aperture 19 for installing a granite slab in it from the table for scales or other technical devices, the work with which requires the absence of vibration. Worktops of adjacent sections in the working plane are interconnected by soldering or welding.

The technical result is also achieved by the fact that the cabinet is made of separate modular elements interconnected by a lock connection of the crossbars: rear, front and side walls, through common vertical struts - profiles of the side walls, and that all elements are made of acid-base material with low sorption ability. Cabinet walls and sectional partitions can be made of stainless steel or a transparent, possibly matte plastic impact-resistant acid-base material. The sealing of the joints of the side, rear walls and uprights is made of an elastic material with low sorption ability.

In case of emergency, an emergency exit is provided in the modular laboratory complex, and an emergency shower and a face wash are provided in the laboratory unit. The exhaust ventilation system further comprises a backup filter system with fans.

When working with toxic substances, the entire technological research cycle, including such operations as washing, weighing and analyzing on devices, is carried out in the working chamber of one fume hood of a modular design, consisting of separate sections of at least two, interconnected by technological windows for transferring test samples. A technological window is also provided in the rear wall of the working chamber for supplying the test sample from the storage location. Each of the sections is designed to perform one operation in it and has a separate exhaust duct containing at least one upper pipe. A protective screen made of separate modular elements of a special design prevents the removal of the test substance from the working chamber into the surrounding air. Bending of the inner surface of the upper stationary part of the screen prevents the test substance from reaching the front side of the countertop in case of vapor condensation on the inner surface of the screen. The lower movable part of the screen in the raised position enters, as if in a pencil case, into the gap between two parallel surfaces of the upper stationary part of the screen, excluding the contact of the moving part of the screen with the surrounding air. The maximum lifting height of the lower movable part of the screen is limited by the upper part of the circumference of the corrugated pipe and the height of the upper stationary part of the screen. To avoid accidental ingress of particularly hazardous substances into the drain device, a separating edge is provided in the countertop located at least 10 cm from the drain device.

Many highly dangerous toxic substances, as a rule, have a high penetrating power. Therefore, the materials from which the individual elements of the cabinet are made, including the gaskets of the compounds, must have low sorption ability, which prevents the penetration of the test substance into the materials and contributes to the rapid removal and washing of the test substance from their surface. Depending on the substances under study, the cabinet walls and sectional partitions can be made of stainless steel or a transparent, possibly matte plastic shockproof and acid-base material. The manufacture of side walls and partitions made of transparent material provides constant visual control over the entire process of research on highly hazardous substances.

For the compact transportation of the modular laboratory complex, its quick installation and the creation of safe and comfortable conditions when working with volatile and especially hazardous substances, including toxic substances in a limited confined space, the complex is equipped with equipment and collapsible design furniture, which occupies the smallest possible area of the complex. The use of an exhaust device made in the form of a cabinet of modular design, consisting of several sections, provides quick installation and the entire cycle of multi-operation analysis in the working area of one exhaust device. The area occupied by a modular design fume hood, consisting of several sections, is significantly smaller than the area occupied by adjacent single-section fume hoods.

The invention is illustrated by drawings, which have only illustrative purposes, do not limit the scope of rights of the totality of the features of the formula and where are shown:

figure 1 is a front view of a cabinet consisting of three sections;

figure 2 - the location of the screens and partitions with a technological window.

INFORMATION SOURCES

1. RU, certificate. at PM No. 42207.

2. www.ECROS.RU.

3. RU patent for software No. 54775.

4. RU patent for software No. 54574.

5. RU patent for software No. 54436.

6. RU patent for software No. 54437.

7. RU patent for software No. 54393.

8. RU patent for software No. 54543.

9. RU patent for software No. 54541.

10. RU patent for software No. 54542.

11. RU patent for software No. 54575.

12. Passport and description on the SHZ-NZH EXTRACTOR CABINET for three workplaces. All-Union Association "IZOTOP", Zak. 462-500-72.

Claims (11)

1. A modular laboratory complex containing laboratory, recreational and technical units, the laboratory unit is separated from the rest by a vestibule and equipped with modular laboratory equipment, the recreation unit is equipped with sanitary equipment and provides a rest room, and the technical unit is equipped with life support systems: power power supply, electric lighting, air conditioning, supply and exhaust ventilation, water supply and water treatment with water treatment, as well as sewage, at volume ventilation includes an air intake, mosquito filters, a shut-off valve, a fan, a heater and automatic control equipment, exhaust ventilation includes absorbing filters with fans and automatic control equipment, and a water treatment system with water purification includes containers for storing purified water, pumps for supplying water to the points of analysis, water heaters, distiller, sewage system provides separate containers for collecting domestic and industrial drains, the container for collecting industrial drains is equipped with an oil trap, characterized in that it has an emergency exit, the exhaust ventilation system additionally contains a backup system of absorbing filters with fans, the laboratory unit is equipped with an emergency shower and a face wash, and laboratory devices and equipment are located in the working area of one fume hood modular design. 2. A fume hood of a modular design, consisting of an air duct, a working chamber and a base, while the duct connects the upper, lower zones of the working chamber and the base with an exhaust ventilation system, the front wall of the working chamber has at least one opening covered by a transparent screen with there are taps for supplying liquids and gases on the back wall of the working chamber with hand holes turning into corrugated tubes, the table top has a front side and at least one opening for a drain device, and the drain device ayana to the countertop and connected to a special sewer or container, the base is made in the form of a pedestal with doors, on the front wall of which there are valves for regulating the flow of liquids and gases and valves for regulating industrial drains, characterized in that it is divided by at least two vertical partitions sections, with each section having its own air duct, the working chamber is divided into sections by partitions parallel to the side wall, at the bottom of the partition and / or side wall there is a techno a logical window with curtains moving left and right, moving along the guides, between which there is a partition or side wall, the front wall of each section has openings blocked by at least one screen consisting of a lower movable part with openings for the hands and the upper motionless, consisting of two parallel surfaces with a gap, one of which, the inside, has a bend towards the working chamber, the top of each section has a side around the entire perimeter, countertops of adjacent cations in the working plane are interconnected and with the elements of the working chamber body by soldering or welding, all cabinet elements are made of acid-base materials with low sorption ability and are connected by a lock connection of the crossbars of the rear, front and side walls through the profiles of the side walls. 3. The cabinet according to claim 2, characterized in that the upper, side walls and partitions are made of transparent impact-resistant material. 4. The cabinet according to claim 2, characterized in that the technological window is made in the form of a vestibule gateway. 5. The cabinet according to claim 2, characterized in that the technological window is located on the rear wall. 6. The cabinet according to claim 2, characterized in that in the lower part of the screen the hole for the hands has a shutter that is movable in the direction of the pendulum. 7. The cabinet according to claim 2, characterized in that in the lower part of the screen the hole for the hands has a double shutter that is movable in the direction of the pendulum and consists of two surfaces of the same shape, fixed on an axis from the inner and outer sides of the screen. 8. The cabinet according to claim 2, characterized in that the opening for the drain device is separated from the rest of the surface of the countertop by a dividing side located parallel to the partition from the front to the rear side. 9. The cabinet according to claim 2, characterized in that the opening for the drain device is located at a distance of at least 10 cm from the side wall and / or partition, and / or the dividing side. 10. The cabinet according to claim 2, characterized in that one of the sections is configured to install technical devices, the operation of which requires the absence of vibration. 11. The cabinet according to claim 2, characterized in that the countertop has an opening for installing a table for scales.

Images