RU2493502C2 - Air treatment device - Google Patents

Abstract

FIELD: ventilation.

SUBSTANCE: air treatment device comprising an exhaust fan installed in an air duct, having an intake nozzle. The intake nozzle is made in the form of a bellows, to the lower part of which a rim is rigidly fixed, to the lower part of the latter an intake device is rigidly fixed, a cylinder with an inner thread is rigidly fixed to its side surface and interacts with the outer thread of a rod, which interacts with a motor shaft, besides, in the air duct upstream the fan there is a dust sensor, which is electrically connected to the inlet of a monitoring and control unit, to the inlets of which a signal is sent from the motor and the setter, and outlets are electrically connected with the unit of sound and light alarm, at the same time the monitoring and control unit is electrically connected with the calculation and measured data storage unit. The intake device is made in the form of a cylinder, in the lower part of which there is a disc rigidly fixed with a hole in the centre, the radius of which is equal to the inner radius of the cylinder, at the same time oppositely to this disc at the distance h there is the second disc rigidly fixed.

EFFECT: invention makes it possible to automate a process of air treatment and to automatically detect dust concentration by height.

2 cl, 2 dwg

Description

The invention relates to the field of labor protection, and in particular to the technique of air purification in industrial premises.

A device for air supply (US Pat. RF №2128314 F24F 7/00; 13/06), containing a terminal device for air supply, having a hole for air intake connected to a source of supplied air located outside the ventilated space, the outlet for the supplied air and an elongated air channel located between the inlet for air intake and the outlet for the supplied air. The terminal device for air supply is mounted vertically on the wall with an outlet located near the wall to allow the supply of air to pass through the outlet downward due to the Coanda effect, changing the direction and distribution of air along the floor.

The duct between the air intake opening and the air outlet is formed by a channel open on one side, the terminal device being fixed to a wall, the open side of which is covered by a wall.

The channel contains one or more spacers mounted along the side edges of the channel.

The length of the duct between the air inlet and the outlet for the supply air is at least two times the transverse dimension of the duct.

The outlet of the terminal device for air supply is located at a distance of 80-120 cm from the floor.

The disadvantages of this device are:

1. The device only works on the influx of fresh air into the room.

2. Does not work to remove dust from the room.

3. Not adjustable in height.

A device for collecting dust from gas emissions of technological units (US Pat. RF No. 2347981 F24F 7/00; B08B 15/00) containing an exhaust hood with vertical walls, a suction aperture and a gas outlet. An exhaust hood around the perimeter is equipped with additional vertical walls and ceiling surfaces that form gas storage tanks. Additional vertical walls are installed on the outside of the exhaust hood at a distance of 0.25-0.60 of the appropriate size of the width or length of the suction opening of the hood.

The disadvantages of this device are:

1. The device is adapted only for small volumes;

2. The complexity of the design;

3. The regulation of air exchange is not provided.

The closest analogue to the claimed device relates to a device for cleaning the air of livestock buildings (US Pat. RF No. 2087097 A01K 1/00; F24F 3/16; 7/00; B01D 35/06), containing: placed in series electric filter, in the housing of which are installed and precipitation electrodes, ventilation unit. The electrodes are made V-shaped and their sharp angles are directed to meet the air flow supplied to the filter through the inlet. Moreover, each precipitation electrode is placed opposite the gap between adjacent corona electrodes. Moreover, the supply duct has intake pipes, the lower ends of which are located at a distance of 0.5-1 m from the floor level to remove contaminated air from the zone of animals. A mesh element of their electrical insulating non-woven material is installed in the inlet for rough cleaning of air from mechanical impurities.

The disadvantages of this device are:

1. With the falsity of the device.

2. The inability to adjust the height of the intake of cleaned air.

3. The process of removing purified air is not automated.

The objective of the invention is the regulation of the height of the intake of cleaned air and the automation of this process.

The problem is solved due to the fact that the device for air purification, containing an exhaust fan installed in the duct, has an intake pipe. The intake pipe is made in the form of an “accordion”, the “rim” is rigidly fixed to its lower part, the intake device is rigidly attached to the lower part of the latter, and a cylinder with an internal thread that interacts with the external thread of the shaft that interacts with the shaft is rigidly attached engine, while in the duct in front of the fan there is a dust sensor, which is electrically connected to the input of the control and control unit, to the inputs of which a signal is supplied from the engine and the setter, and the outputs are electrically connected anes fan unit and the sound and light signaling, wherein the control unit is electrically connected to the calculating unit and storing the measured data.

The intake device is made in the form of a cylinder, in the lower part of which a disk with a hole in the center is rigidly fixed, the radius of which is equal to the inner radius of the cylinder, while the second disk is rigidly fixed at a distance h.

New significant features:

1. The intake pipe is made in the form of an accordion, to the bottom of which the “rim" is rigidly attached.

2. A pick-up device is rigidly attached to the bottom of the rim.

3. A cylinder with an internal thread, which interacts with the external thread of the rod, is rigidly attached to the side surface of the intake device.

4. The rod interacts with the motor shaft.

5. A dust sensor is installed in the duct in front of the fan.

6. The dust sensor is electrically connected to the input of the control and management unit, to the inputs of which a signal is supplied from the engine and the setter.

7. The outputs of the control and control unit are electrically connected to the fan and the sound and light alarm unit.

8. The control and management unit is electrically connected to the unit for calculating and storing the measured data.

9. The intake device is made in the form of a cylinder in the lower part of which a disk is rigidly fixed with a hole in the center, the radius of which is equal to the internal radius of the cylinder, while the second disk is rigidly fixed at a distance h.

The listed new essential features, together with the known ones, are necessary and sufficient to achieve a technical result in all cases to which the requested amount of legal protection applies.

Technical result:

The intake pipe is made in the form of an “accordion” for the possibility of automatic air intake at various points in height.

The intake device allows you to determine the concentration of dust by height.

The intake device, to the lateral surface of which a cylinder with an external thread is rigidly fixed, which interacts with the external thread of the rod and the motor shaft, allows you to move the "accordion" to the height we set.

A dust sensor is installed in the duct in front of the fan, which is electrically connected to the input of the control and control unit, to the inputs of which a signal is supplied from the engine and the setter, and the outputs are electrically connected to the fan and to the light and sound signaling unit, while the control and control unit is electrically connected with the unit for calculating and storing the measured data - allows you to automate the process of determining the concentration of dust, and moving along the height.

The implementation of the intake device of the proposed design allows you to determine the concentration of dust at a specific predetermined height, while the installation of the second disk prevents the absorption of air from the lower layers.

Figure 1 - schematically shows a device for air purification.

Figure 2 - schematically shows the intake device.

A device for air purification, comprising an exhaust fan 1 installed in the duct 2, having an intake pipe 3, which is made in the form of an "accordion". A “rim” 4 is rigidly fixed to the lower part of the pipe 3, a sampling device 5 is rigidly attached to the lower part of the latter, a cylinder 6 with an internal thread, which interacts with the external thread of the shaft 7, which interacts with the motor shaft 8, is rigidly attached this in the duct 2 in front of the fan 1 has a dust sensor 9, which is electrically connected to the input of the control unit 10, the inputs of which are fed a signal from the engine 8 and the setpoint 11, and the outputs are electrically connected to the fan 1 and the unit sound and light alarm 12, while the control unit 10 is electrically connected to the unit for calculating and storing the measured data 13.

The intake device 5 is made in the form of a cylinder 14, in the lower part of which a disk 15 is rigidly fixed with a hole 16 in the center, the radius of which is equal to the inner radius of the cylinder 14, while the second disk 17 is rigidly fixed at a distance h to the struts 18. When this power unit 19 is electrically connected to the control unit 10 and to the unit for calculating and storing the measured data 13.

In the setter 11 sets the parameters of the maximum permissible dust concentrations in height. When you turn on the engine 8 on the shaft 7 rises or falls through the connection cylinder 6, the rim 4 of the duct 2 to a predetermined height. When the ventilation is turned on, air is sucked into the opening 16 of the intake device 5 through the lateral channels formed by the disk 15 and 17, which through the air duct 2 enters the dust sensor 9. Information from the dust sensor 9 enters the input of the control and control unit 10, in which the comparison dust concentration parameters obtained with a given. When the concentration of dust is exceeded, a signal is sent from the control and control unit 10 to the alarm unit 12, from where an audio and light signal comes; at the command of block 10, fan 1 is turned on.

This also increases the speed of rotation of fan 1. Ventilation of the room occurs until the concentration of the given and measured dust is equal. After that, the control unit 10 sends a signal to the alarm unit 12 to turn off the sound and light signaling and reduce the rotation speed of the fan 1. After that, the control unit 11 sends a signal to the control unit 10. The signal from it is supplied to the engine 8, which raises or lowers air duct 3 to another (up or down) predetermined step-by-step height, after which the process is repeated.

The obtained information on the concentration of dust at different heights is stored in the unit for calculating and storing the measured data 13.

Claims (2)

1. A device for air purification, comprising an exhaust fan installed in the duct, having an intake pipe, characterized in that the intake pipe is made in the form of an “accordion”, a “rim” is rigidly fixed to its lower part, and a intake device is rigidly attached to the lower part of the latter and a cylinder with an internal thread is rigidly attached to its lateral surface, interacting with the external thread of the rod, which interacts with the motor shaft, while a dust sensor is installed in the duct in front of the fan, which th is electrically connected to the input of the control and control unit, to the inputs of which a signal is supplied from the engine and the setter, and the outputs are electrically connected to the fan and to the sound and light alarm unit, while the control and control unit is electrically connected to the unit for calculating and storing the measured data. 2. The device for air purification according to claim 1, characterized in that the intake device is made in the form of a cylinder, in the lower part of which a disk with a hole in the center is rigidly fixed, the radius of which is equal to the inner radius of the cylinder, while opposite this disk is rigidly h the second disk is mounted.

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