The invention relates to the field of protective structures of civil defense in order to prevent penetration through them the shock wave of a nuclear explosion, and more particularly relates to structures explosion of devices designed for installation in air intake and exhaust ducts of protective structures. Proof device includes a support frame with a flange made in the form of a support grid, to which the hinge is attached a spring-loaded springs the blade at a fixed angle to the grid, for example, 45°, and a frame fixing the specified angle. Spring-loaded blades are made with the profile of the edges, which when paired with each other in the closed position form a labyrinth channels. The length of the labyrinth channel is 0,10-0,25 width of the blades, i.e., L=(0,10-0,25); where L is the length of the labyrinth channel; the width of the blade. The technical result of the invention is to reduce the impact of the shock wave. 1 C.p. f-crystals, 3 ill.
The invention relates to the field of protective structures of civil defense in order to prevent penetration through them the shock wave of a nuclear explosion, and more particularly relates to structures against the deposits.
The prior art anti-explosion device, see “instructions for installation and operation of explosion devices CCS-8 CCS-25 and CCS-50”, Military publishing house of the Ministry of defense of the USSR, Moscow, 1979
With the development progress and use of currently advanced technologies for the design and creation of the new equipment in any branch of engineering, the more stringent requirements of the Ministry of Defence to the structures and operation of explosion devices, the global urgency of this problem, the above model explosion of devices selected as a prototype of the proposed device, which today should be improved to meet international standard.
Known anti-explosion device (CCS) are assembled from standardized protective sections mounted on the support frames.
Uniform section (see Fig.1 Instructions...) represents a frame of rectangular shape made of parts 80×50×5 mm, mounted in the grille. To the grid by means of hinges and axles are mounted twelve spring-loaded dural blades with a thickness of 2 mm, the Blades are held by the springs and the movable frame at an angle of 45° to the grid.
Protamine, with the help of special bolts. For installation of CCS-8 in the frame there are four anchor bolt holes diameter 16 mm
Blast unit CCS-25 (see Fig.3 Instructions...) consists of a frame, door frame and attached three sections.
Reference and door frame are connected by hinges and two latches. The hinges and locks allow adjustment of the density tucked up door frame to the base frame, between which there is a rubber gasket. In order to ensure sealing between the sections and door frame padded paronit strip. For installation of CCS-25 in the base frame has eight holes for anchor bolt diameter 16 mm
Proof device PSM-50 (see Fig.4 Instructions...) consists of a base frame with two struts, one of the door frame, three sections, mounted on the door frame, and three sections, mounted on a support frame. Door frame is connected to a supporting frame by hinges and two latches. The hinges and locks allow adjustment of the density of the preload of the door frame, between which there is a rubber gasket. Between sections and door frame laid paronit strip. For attachment RCS-50 in the base frame there are twelve holes for anchor bolts with a diameter of 24 mm
When Y overrides the living section of the reference lattices (ventilation ducts). For anti-explosion device passes a small part of the shock wave with time and pressure, which today does not conform to the standards set by the Ministry of Defence.
Mounting and installation the famous explosion of the device is as follows.
Anti-explosion device CCS-8 CCS-25 and CCS-50 can be installed in the air intake and exhaust ventilation vertical or horizontal channels (see Fig.5 Instructions...).
When installed in horizontal channels-proof device can block the channel or be placed in the side wall.
Unified protective section (see Fig.1 Instructions...) can be installed without base frame, if there is no need to open it. In this case, the section is bolted to the structures of the buildings.
In relation to the requirements set forth in the “instructions for installation and operation of explosion device before mounting the explosion of devices should:
- check and adjust if necessary efforts to unseat spring-loaded blades;
- check the functioning locking devices;
to ensure the fastening of the explosion of devices CCS-8 CCS-25 and CCS-50 in the tightness of the connection between the base and frame anti-explosion device, what is installed rubber gasket;
- door frame explosion devices typically open in the left side. If the conditions of installation it is necessary to provide the opening of the door frame to the right side, the anti-explosion device should be deployed to 180°, remove the partition and install their blades down.
The work of the famous explosion of the device is as follows.
Before using the explosion of devices check:
- the angle of the blades;
- efforts to unseat spring-loaded blades:
- tightness of the fit of the door frame to the base frame;
- tightness of the seal support frame to the base;
- the tightening of the anchor bolts.
After that, the blade sections are mounted at an angle of 45° to the reference lattice. The setting angle of the blades is carried out by moving the movable frame by means of two adjusting screws, which vivenciada to lock the movable frame in the limit (when the health and proper location of the stop).
During operation of the blast device spring blades can reduce its elasticity. In this case, the blades will be closed when the costs of air, but less to shoot moving grate, the plate that holds the axis of the blades, remove the axle and blades with springs. After that springs to stretch, to install all the parts and re-check the effort to unseat each blade.
The moving blades set at an angle of 45° to support the grille, should occur from the weight of the mass of 1.1 to 1.2 kg, lying on the edge of the blade.
Support frame explosion devices shall be tightly fit to the base. Therefore it is necessary to check the serviceability of a sealing gasket between the base and the supporting frames and the tightening of the nuts on the anchor bolts.
Door frame explosion of devices in the closed position shall be tightly fitted to the base frame. If the frame is loosely attached to the base frame or closed, it is necessary to adjust the hinge device with nuts by tightening or loosening. Defective sealing strip on the door frame must be restored or replaced.
Anti-explosion device when open the door frames must provide an emergency exit from a building. In addition:
- explosion devices when off ventilation may lead to icing due to overflow from the melting ventilation) must be closed;
in order to protect from freeze-proof device in the exhaust ducts must be installed in places where the temperature will not be below 0°C;
- transport and storage explosion of devices in warehouses only allowed with open blades. Laying explosion of devices in a stack of Pets with a gasket between them wooden beams, providing open position of the blades.
The disadvantages of the known devices are low leak valve body in the closed state, increased the time of locking of the locking member, which is connected with increased by the stroke of the locking member, and omissions traces of the shock wave, and with them the products of infection, after its direct impact on the shut-off body.
The main disadvantage of the listed activities necessary to implement the stable operation of explosion known devices is that the model of the known device today, in the age of technological progress, obsolete, requires improvements of the design, and the creation of a competitive internal and external market explosion of device with indicators relevant international standards, and natures is to be mentioned disadvantages in the prototype by creating a unique design, the operation of which is ensured:
- reducing the impact on the human factors of the shock wave by reducing the time of exposure by closing the shut-off organ, namely by reducing the time overlap of the living section of a pass hole of the support grates (ventilation ducts), and ensure maximum tightness in the closed state,
- as well as reducing the impact of traces of the shock wave by fixing the locking member in the closed state.
The problem is solved due to the fact that the proposed design of the anti-explosion device includes a support frame 1 with a flange 2, is made in the form of a support grid, to which the hinge is attached spring-loaded by springs 3 blade 4 at a fixed angle to the grid, for example, 45°, and the frame 5 commit the specified angle.
According to the invention:
spring-loaded blades 4 are made to the profile of the edges 6, which when paired with each other in the closed position form a labyrinth channels 7.
The length of the labyrinth channel is 0,10-0,25 width of the blades, i.e., L=(0,10-0,25); where L is the length of the labyrinth channel; the width of the blade.
To limit penetration of the traces of the shock wave the blade 4 after characteristics in comparison with the known devices achieves the technical effect of the labyrinth seal:
education labyrinth of channels allows you to provide the minimum clearances between the edges with the local resistance, providing large fluctuations in air pressure at a given length of the labyrinth channel.
The requested geometry is optimal for this type of shut-off organ, because the increase in the width of the blade is associated with increased it by passing that, given the speed of the shock wave increases the time of rotation of the blades.
Limit value according to the length of the labyrinth channel on the width of the blade is determined experimentally and is
L=(0,10-0,25); where L is the length of the labyrinth channel; the width of the blade.
Together it is possible to reduce the time overlap of the living section of a pass hole of the support grates (ventilation ducts) and to maximize closed tightness formed by the mating surfaces of the edges of the blades labyrinth seal.
It is known that after the passage of the shock wave come the periods of oscillations passing traces, which may again affect people in the asylum, including through the inclusion of radioactive contamination. Therefore, after the passage of the shock wave off ers the possible traces of the shock wave due to the blade 4 after exposure to shock waves securely clamps 8 in the closed position.
The invention is confirmed by the drawings:
in Fig.1 shows an explosion drawing of the device in functional open state;
in Fig.2 shows the node podpruzhineny blades;
in Fig.3 - state device in the closed position.
Proof device consists of a support grid 1, which takes the force of impact of a shock wave and provides a tight fit of the blades in the closed state. With the help of a flange 2 of the device through the sealing gasket (not shown) is attached to the exhaust or supply the mine. The supporting grid 1 are articulated blades 4, which are biased by springs 3. Frame 5 fixing angle of the blade 4 relative to the reference grating 1 is also pivotally connected with the latter and enables fixing of the specified angle of inclination of the blade 4 relative to the reference grid 1 (from almost 0 to 90°). The angle is set to the preset value (for example, at 45°) with screws (item not shown).
On the support bars 1 set the hooks 8, which provide a record of the blades in the closed state after delaurentis channels 7.
Proof device operates as follows.
Anti-explosion device is installed in the intake or exhaust ducts on the flanges 2 through a sealing gasket (not shown).
In normal conditions the blades 4 of the device are open and freely pass air into the room or from the premises. Under the action of a shock wave spring blades 4 rotate on axes and overlapping the live section of the support grid 1. At the same time the force of the shock wave frame 5 of the fixing angle of the blade 4 relative to the reference grating is pressed to the closed blades and grippers 8 is fixed in the closed position of the latter. Thus, put a reliable barrier to the penetration of the shock wave and its traces through the intake or exhaust channels.
However, thanks to the optimally chosen parameters and the configuration of the edges of the profiles, when pairing them with each other in the closed position of the blades is formed tight labyrinth seal, the claimed device is provided to at least reduce the impact on the human factors of the shock wave and its consequences. Today, declared explosion device complies with trebovaniyam, providing the needs of the defense industry and the security of civilians.
1. Proof device that includes a support frame 1 with a flange 2, is made in the form of a support grid, to which the hinge is attached spring-loaded by springs 3 blade 4 at a fixed angle to the grid, for example, 45°, and the frame 5 commit a specified angle, wherein the spring-loaded blade 4 is made with the profile of the edges 6, which when paired with each other in the closed position form a labyrinth channels 7, the length of the labyrinth channel is 0,10-0,25 width of the blades, i.e.,
where L is the length of the labyrinth channel;
In - the width of the blade.
2. Proof device under item 1, characterized in that the blade 4 after exposure to a shock wave is fixed by the clamps 8 in the closed position.
FIELD: equipment for smoke removal from room through openings made in air funnel.
SUBSTANCE: device has body with side walls, upper and lower bases and sealing belt formed by bent parts of upper and lower bases. Device also comprises gate fitting the belt and connected to the body by hinges having common pin, torsion springs for gate opening and driving electromagnet. Electromagnet armature has end slant and compression spring. Gate is formed as two opposite flaps, namely as adjacent main and additional ones. The main flap has cover strip arranged on back side thereof and having L-shaped upper end to engage the electromagnet armature. Pivot bolt installed on the cover strip is spring-loaded relative lower ear by compression spring, wherein load from compression spring applied to pivot bolt is less than load from electromagnet armature so that after flap closing pivot bolt cooperates with upper end of electromagnet armature and lower end of pivot bolt passes in hole formed in lower base. Each flap is connected to the body in at least 4 points to provide reliably sealing of the device under increased pressure acting from inside and outside.
EFFECT: increased operational performance due to provision of smoke penetration resistance.
FIELD: air conditioning.
SUBSTANCE: case has backup abutment of shaft of regulating shutter mounted on hinges. Case is made if form of collapsible unit of two identical plastic molded items. Any item is made in form of hollow semi-cylinder with open edges. Any hollow semi-cylinder is provided with at least one inserted connecting member disposed in parallel to axis of the self-cylinder along the first edge of semi-cylinder. Cylinder also has at least one corresponding receiving connection member disposed along second opposite edge being parallel to mentioned axis. Gas flow regulator provided with drive driven by engine is disposed inside plastic case.
EFFECT: compactness of unit; easiness of assembling without using special tools.
2 cl, 6 dwg
FIELD: control or safety systems or apparatus, particularly air flow regulation means.
SUBSTANCE: device comprises body with the first wall having curvilinear surface and valve installed in the wall and made as gate with lever and weight. Lever and weight have axes secured to body wall, which is opposite to body wall having curvilinear surface. Body walls have profiled surfaces in working valve gate area.
EFFECT: increased reliability.
4 cl, 1 dwg
FIELD: ventilation and air heating industry.
SUBSTANCE: invention relates to aerodynamic ventilation and heating systems. According to proposed method, air gets through intake pipe into mixing chamber with for mixing with recirculated air and then delivery fan feeds air into heating chamber where air is heated to normal temperature and then air passes into common supply air duct where t-pipe is installed before output to room. Distributing device adjusted by aerodynamic properties is installed in said t-pipe. Said distributing devices provides delivery of preset amount of air into room. Further on, distributing device arranged in t-pipe takes in air from room and directs it into common exhaust air duct which directs air to exhaust fan after which distributing valve is installed which directs air outside through exhaust pipe and for recirculation into recirculation air duct.
EFFECT: provision of accurate delivery of required amount of air into room.
FIELD: construction; natural ventilation system.
SUBSTANCE: equipment has regulating louver grate, and behind the louvered grate inside the ventilation shaft, there is a short, open ended L-shaped pipe with one end in the direction of the louvered grate and the other connected to a pressure sensor which is electrically connected to a rotating actuating mechanism of the louvered grate.
EFFECT: increasing process reliability of stabilisation and regulation of the productivity of a ventilation shaft.
FIELD: fire engineering.
SUBSTANCE: facility for smoke removal contains contour including circular and support collars, butterfly gate, resting on contour by means of axis, chute fixed on butterfly gate along perimeter, spacer placed in chute, electro magnet and regulator lever connected thereto. The facility additionally is equipped with a pass through box, installed in a wall opening; at that the contour is mounted inside the box with a tilt to the base and faces it with its circular collar; the support collars of the contour are tightly coupled with box walls, while the butterfly gate is located also with the tilt to a chute base in response to the circular collar thus forming labyrinth packing with shelves of the circular collar and chute; at that the chute is made trough shaped; besides, electro magnet is fixed on the exterior surface of the box allowing direct contact of a rotor with a closed gate. The facility is equipped with a decorative fluctuating grate. The spacer located in the chute is made in kind of asbestos downy rope.
EFFECT: upgraded operational characteristics of facility due to generating considerable interception of smoke penetration and simplification of design.
3 cl, 2 dwg
FIELD: heating systems, ventilation systems.
SUBSTANCE: invention refers to fire-fighting equipment and namely to devices of smoke removal from a room on the building floors through openings provided in a ventilation shaft wall. Smoke removal device consists of a circuit, a gate with a handle which is installed so that it can move along the opening on vertical guides, a driving electromagnet connected by means of an armature through a latch to the gate, a sealing belt, mounting fixtures and a shock absorber in the form of a flexible plate. Device consists of an additional circuit with thread bushes and retention screws which is installed diametrically relative to the main circuit thus forming together therewith the side vertical guides in the form of a blind slot and a circular groove. Sealing belt is located in the groove so that it can come in contact with the groove walls and gate. Driving electromagnet is equipped with a manual lever and attached to the circuit so that armature can directly and horizontally be engaged with the gate handle. In addition, shock absorber is provided with a brake plank.
EFFECT: improving operational performance of the device by means of producing considerable resistance to smoke penetration as well as simplifying the design of the device.
3 cl, 3 dwg
FIELD: machine building.
SUBSTANCE: invention is provided for automatic control of constant air pressure in adjacent rooms, including shelter room. Excessive pressure valve is described by presence of barrel and pivotally connected to casing by rotary dish located in casing. Dish is connected to casing by steering control of dish. Top end of steering control is rigidly connected to dish. Bottom end of steering control is implemented with movable fixed counterbalance. Middle part of steering control is pivotally connected to casing. Valve is implemented with eccentric clamping of dish to casing. Clamping is installed on casing and its eccentric is located with ability of interaction to steering control and fixation in the working position at closed dish. Steering control of dish is implemented as J-formed with front and bottom parts extending to the side of dish. Rigid connection of top end of steering control to dish is implemented by means of in-cut connection. Stud of threaded connection is screw up into implemented on backside of dish threaded connection. Pivotally connection of front part of steering control to casing is implemented by means of blackets. The latter are implemented on casing. The front part of steering control is located between blackest and connected to it by screws with ability of its rotation relative to blackest around screws.
EFFECT: reliability growth of valve actuation in wide range of changing of air pressure in ventilated rooms.
5 cl, 10 dwg
FIELD: process engineering.
SUBSTANCE: invention relates to machine building. Labyrinth-type separating element features the shape of angle-deflector. Angle-deflector inner angular part represents channel-collector open towards working airflow. Angle-collector is divided by vertical plate into two identical parts and features variable depth increasing in coordinates of angular screen mounted in operating position in direction from top to bottom.
EFFECT: higher operating efficiency.
2 cl, 4 dwg
FIELD: machine building.
SUBSTANCE: device is designed for control of synchronous-butterfly gates of jalousie type in conditioning and ventilation systems. A flexible shaft is made as a screw cylinder spring tied with a drive and passing through an orifice made at a distance of rotating arm in one of the synchronous-butterfly gates connected with the rest gates by means of a common connecting rod.
EFFECT: control of synchronous-butterfly gates at their location in hard-to-reach place; increased reliability.