RU210223U1 - Bactericidal Air Recirculator for Elevator Cabin - Google Patents

Abstract

The proposed technical solution relates to devices for air purification by means of ultraviolet radiation, intended for installation inside an elevator cabin. The technical result that can be achieved in the manufacture of the proposed technical solution is to disinfect the air in the volume of the elevator cabin with the function of promptly informing the personnel of the elevator control center about the operating status of the recirculator and the occurrence of errors in its operation. The technical result is achieved due to the fact that a bactericidal air recirculator for an elevator cabin, containing a base having an inlet and outlet for air, two fans are installed on the base, located at the inlet and outlet, at least one gas discharge lamp as a source of UV radiation. radiation, a UV radiation power control sensor, a temperature sensor, a power supply, a switching board, a control board, an LED indicator and a casing, characterized in that it contains a device that provides the function of transmitting information about the operating status of the recirculator to the control room.

Description

Field of technology to which the utility model belongs

The proposed technical solution relates to devices for air purification by means of ultraviolet radiation, intended for installation inside an elevator cabin.

State of the art

In Russia and other countries, bactericidal ultraviolet bactericidal irradiators-recirculators (hereinafter referred to as the recirculator) are widely used for air purification and disinfection. An example of a recirculator intended for use in an elevator car is described in RU 203059, published March 19, 2021, and accepted as the closest analogue. Known bactericidal irradiator contains a bracket on which a board with UV LEDs is installed; has inlet and outlet air channels, which are equipped with a supply and additional fan; on the bracket there is a switch for monitoring the presence of a protective housing, a control board, a photodiode for monitoring the power of UV radiation, an LED indicator, a casing, a radiator containing a thermistor and a board with UV LEDs, a power supply board with power connection through a switch for monitoring the presence of a protective housing, which provides the connection of the board with UV LEDs and control boards with connected fans, UV power control photodiode, LED indicator and thermistor. The shroud and heatsink together with two fans form an air channel. The specified recirculator is installed behind the elevator order panel on the bracket.

Emergency conditions such as a drop in UV power, failure of any of the fans, overheating of heatsinks cause the color of the indicator mounted on the outside of the bracket to change from green to red, and in some cases leads to a power outage of the fans and the UV LED board. . Based on the color of the indicator, the organization servicing the elevator concludes that there is a malfunction and repairs the recirculator.

The use of the known technical solution is not rational, since in emergency cases, until the repair service learns about the error, users and the service department will assume that the cabin is in a protected state. Visual control of all serviced elevators in real time is impossible and a malfunction can be found out in a few days, during which dozens of people can be infected.

Utility Model Disclosure

The technical problem solved by using the proposed technical solution is to instantly report to the control room about the occurrence of a malfunction and its localization, which contributes to the prompt adoption of measures to eliminate it.

The technical result that can be achieved in the manufacture of the proposed technical solution is to supplement the existing functions of the recirculator for air disinfection with the function of promptly informing the personnel of the elevator control center about the operating status of the recirculator and the occurrence of errors in its operation.

The technical result is achieved due to the fact that the bactericidal air recirculator for the elevator cabin contains a device that provides the function of transmitting information about the operating status of the recirculator to the control room.

A device that provides the function of transmitting information about the operating status of the recirculator to the control room, transmits an error signal via a wired line, which, as a rule, is available in each elevator and connects it with the control panel, or provides remote control of the recirculator using wireless communication lines , for example, over a radio channel (Wi-Fi, GSM, LoRa, etc.).

Brief description of the drawings

The proposed technical solution is characterized by drawings, where:

fig. 1 shows a version of the attachment;

fig. 2 shows a block diagram of connecting the recirculator nodes.

On the drawings:

1 - base;

2 - inlet;

3 - outlet;

4 - fan;

5 - casing;

6 - gas discharge lamp;

7 - power supply;

8 - switching board;

9 - control board

10 - temperature and UV radiation power sensors;

11 - LED indicator;

12 - warning device.

Implementation of the utility model

The bactericidal recirculator is located inside the elevator car under the orders panel, on the inner wall of which it is fixed from the base side by means of fasteners (for example, bolts and nuts). An inlet 2 is cut out in the base 1, through which air enters the recirculator and an outlet 3, from where the disinfected air comes out. The casing 5 and the base with inlet and outlet holes form an air channel. Inside this channel there is a source of bactericidal ultraviolet radiation in the wavelength range of 205-315 nm, which is a mercury gas discharge lamp 6. Ultraviolet radiation causes destructive photochemical damage to the DNA of the cell nucleus of microorganisms contained in the air stream, which leads to the death of a microbial cell in first or next generation. Fans 4 are located opposite the inlet and outlet openings, which create a directed air flow. This directional flow makes it possible to uniformly irradiate the entire mass of air passing through the recirculator chamber and cool the recirculator. The air disinfected in the recirculator channel is ejected through the outlet 3 into the elevator cabin.

Power supply unit 7 is mounted on base 1, which is designed to provide the constituent elements of the recirculator with the necessary electrical power. The power supply unit can be configured to operate from at least one power source known from the prior art, for example, from an AC source (network, device) with a voltage of 110 V to 230 V, a frequency of 50/60 Hz. Switching board 8 provides electrical connection of the power supply unit with fans 4, gas discharge lamp 6 and control board 9.

The control board 9 is designed to ensure the operation of the recirculator according to a given program, automatic switching on and off, control of power parameters, output power of ultraviolet radiation, temperature, serviceability of the elements of the recirculator, as well as informing technical personnel about errors in operation. The control circuit preferably represents at least one microprocessor device known from the prior art and contains a non-volatile memory device, which contains a control program that provides the required operation algorithm.

Temperature and UV radiation power sensors 10 are connected to the control board 9, designed to control the temperature inside the recirculator and the UV radiation power generated by the gas discharge lamp 6. During the operation of the recirculator, the control board 9 constantly monitors the health of the fans 4, the temperature of the recirculator and the power UV radiation. If the temperature of the recirculator exceeds a certain threshold value, failure of the fans 4 or a sharp drop in the power of the UV radiation of the gas discharge lamp 6, an error signal is generated, which is sent to the notification device 12 and the color of the LED indicator 11 changes from green to red.

The notification device 12 is at least one device known from the prior art, configured to transmit analog or discrete information to a central control room. As implementation options, there can be, for example, a mechanical relay, the switched contacts of which are connected by wire lines to the control room, or a radio module for wireless data transmission (Wi-Fi, GSM, LoRa, etc.). In addition, the notification device 12 allows remote monitoring of events, processes and signals, as well as informing about the level and/or the value of various parameters of the operation of the recirculator as a whole and its individual components, for example, informing about the operation and/or health of at least one power supply unit and/or at least one source of UV radiation, etc., for example, by the level of deviation of the current in the electrical circuit from the nominal value or voltage on the electronic component.

The claimed technical solution meets the criterion of "industrial applicability", since it can be manufactured by known technical means, which is confirmed by the successful result of the experimental use of the claimed device.

The proposed technical solution has a simple, durable, reliable and manufacturable design and protection from external influences. In addition, the proposed technical solution is easy to assemble (install), dismantle, maintain and repair. These advantages make it possible to use the proposed technical solution both inside the passenger and freight elevator cabins.

Claims (3)

1. A germicidal air recirculator for an elevator cabin, containing a base having an inlet and outlet for air, two fans are installed on the base located at the inlet and outlet, at least one gas discharge lamp as a source of UV radiation, a UV power control sensor - radiation, temperature sensor, power supply, switching board, control board, LED indicator and casing, characterized in that it contains a device that provides the function of transmitting information about the operating status of the recirculator to the control room. 2. The air recirculator according to claim 1, in which a mechanical relay is used as a device that provides the function of transmitting information about the operating status of the recirculator, the switched contacts of which are connected by wire lines to the control room. 3. The air recirculator according to claim 1, in which a radio module for wireless data transmission is used as a device that provides the function of transmitting information about the operating status of the recirculator.

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