Intelligent electrodeless ultraviolet disinfecting and killing device for central air-conditioning ventilation system

Abstract

An intelligent electrodeless ultraviolet disinfecting and killing device for a ventilation system of a central air conditioner comprises a cabinet body, the side edge of the cabinet body is communicated with a pipeline air inlet, and the upper portion of the cabinet body is communicated with a pipeline purified air outlet; the inner surfaces of the two sides of the cabinet body are provided with n electrodeless ultraviolet lamps with the power of 50-1000W, the electrodeless ultraviolet lamps are respectively connected with an electrodeless lamp constant-power electronic ballast device, and the electrodeless lamp constant-power electronic ballast device is arranged in the cabinet body; the upper part of the cabinet body is provided with an intelligent disinfection control system; the intelligent disinfection control system is connected with the electrodeless lamp constant-power electronic ballast device; the control system further comprises a liquid crystal display screen used for displaying power, voltage, ultraviolet intensity, temperature and humidity and wind speed. According to the utility model, higher ultraviolet radiation intensity is provided in a limited space, and viruses and bacteria in the air can be quickly killed.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of central air conditioning fresh air system, specifically point to a kind of intelligent electrodeless ultraviolet disinfecting device for central air conditioning ventilation system. BACKGROUND

[0002] Ultraviolet sterilization technology is more widely used in various fields, especially in air, object surface sterilization, and water treatment sterilization. The principle of ultraviolet sterilization is that high-energy ultraviolet rays act on the DNA of microorganisms, destroy the genetic structure of DNA, and lose the function of reproduction and self-replication, so as to achieve the purpose of sterilization and disinfection. But the existing ultraviolet disinfection is mostly composed of low-voltage ultraviolet mercury lamp with electrode, and the service life of ultraviolet light source with electrode is short, the maintenance cost is high, and the ultraviolet radiation intensity is low, which is not suitable for rapid disinfection of viruses and bacteria in air of central air conditioning fresh air system. SUMMARY

[0003] The utility model solves the technical problem to provide a kind of intelligent electrodeless ultraviolet disinfecting device for central air conditioning ventilation system, provide higher ultraviolet radiation intensity in limited space, realize the rapid disinfection of viruses and bacteria in air.

[0004] The utility model is realized as follows:

[0005] A kind of intelligent electrodeless ultraviolet disinfecting device for central air conditioning ventilation system, comprising: cabinet, the side of the cabinet is communicated with duct air inlet, the upper portion of the cabinet is communicated with duct purified air outlet;

[0006] The inner surface of the two sides of the cabinet is installed n electrodeless ultraviolet lamps with power of 50-1000W, wherein n is 1-100;The electrodeless ultraviolet lamp is connected with electrodeless lamp constant power electronic ballast device respectively, and the electrodeless lamp constant power electronic ballast device is installed in the interior of the cabinet;

[0007] Intelligent disinfection control system is installed on the upper portion of the cabinet;The intelligent disinfection control system is connected with the electrodeless lamp constant power electronic ballast device;The control system further comprises: liquid crystal display for displaying power, voltage, ultraviolet intensity, temperature and humidity, wind speed.

[0008] Further, the six inner surfaces of the cabinet are provided with diffuse reflection aluminum plate for improving the utilization rate of ultraviolet light source.

[0009] Further, the length, width and height of the cabinet are 1100*1230*2150mm.

[0010] Further, the bottom of the cabinet is provided with four universal wheels.

[0011] Further, the cabinet body is made of metal material.

[0012] The utility model discloses the advantages are in: compared with same power's UVC ultraviolet light source, the structure is more compact, is suitable for the limited space in cabinet body, and the power density requirement is high, can fast disinfect the requirement. BRIEF DESCRIPTION OF DRAWINGS

[0013] The utility model will be further described below in combination with the embodiment and the accompanying drawings.

[0014] Figure 1 It is the three-dimensional structure appearance schematic diagram of the utility model.

[0015] Figure 2 It is the cabinet body back door open state structure schematic diagram of the utility model.

[0016] Figure 3 It is the cabinet body front door open state structure schematic diagram of the utility model.

[0017] Figure 4 It is the first 1~6# six no-electrode ultraviolet lamp and constant power electronic ballast connection schematic diagram in the utility model.

[0018] Figure 5 It is the seventh 7~12# six no-electrode ultraviolet lamp and constant power electronic ballast connection schematic diagram in the utility model.

[0019] Figure 6 It is the thirteenth 13~18# six no-electrode ultraviolet lamp and constant power electronic ballast connection schematic diagram in the utility model.

[0020] Figure 7 It is the control system circuit structure schematic diagram of the utility model.

[0021] REFERENCE SIGNS:

[0022] 100-cabinet, 1-omni wheel, 2-pipe air inlet, 3-pipe purified air outlet, 4-nine left electrodeless ultraviolet lamps, 5-nine right electrodeless ultraviolet lamps, 6-LCD display, 7-start button, 8-emergency stop button, 9-nine left electronic ballasts, 10-nine right electronic ballasts, 11-32A air switch, 12-ultraviolet sensor probe, 13-temperature and humidity sensor probe, 14-wind speed sensor probe, 15-energy management driver, 16-energy management driver, 17-energy management driver, 18-intelligent 4G wireless industrial router, 19-485 interface (connects wind speed sensor, ultraviolet sensor, temperature and humidity sensor), 20-485 interface (connects LCD display), 21-intelligent lighting gateway, 22-time relay, 23-AC contactor, 24-fuse, 25-fuse, 26-switching power supply, 27-AC 220V power socket, 28-16A small circuit breaker, 29-radiator fan. DETAILED DESCRIPTION

[0023] As shown in Figures 1 to 7 An intelligent electrodeless ultraviolet disinfection device for central air conditioning ventilation system, comprising: a cabinet 100, a pipe air inlet 2 communicated with the side of the cabinet 100, a pipe purified air outlet 3 communicated with the upper part of the cabinet 100; nine electrodeless ultraviolet lamps with a power of 300W are respectively installed on the inner surfaces of the two sides of the cabinet 100, the left nine electrodeless ultraviolet lamps 4 and the right nine electrodeless ultraviolet lamps 5 are respectively connected with electrodeless lamp constant power electronic ballast devices 9 and 10, and the electrodeless lamp constant power electronic ballast devices 9 and 10 are installed in the interior of the cabinet 100; an intelligent disinfection control system is installed on the upper part of the cabinet 100; the intelligent disinfection control system is connected with the electrodeless lamp constant power electronic ballast devices 9 and 10; the intelligent disinfection control system further comprises a LCD display 6 for displaying power, voltage, ultraviolet intensity, temperature and humidity, and wind speed.

[0024] In this embodiment, 18 (n=18) electrodeless ultraviolet lamps are used in total, and in specific practice, n can be selected from 1 to 100 according to actual needs.

[0025] In this embodiment, 300W electrodeless ultraviolet lamps are used, and in specific practice, 50-1000W electrodeless ultraviolet lamps can be selected according to actual needs.

[0026] The six inner surfaces of the cabinet 100 are provided with diffuse reflection aluminum plates for improving the utilization rate of ultraviolet light sources. The length, width and height of the cabinet 100 are 1100*1230*2150mm, which is suitable for 18 electrodeless ultraviolet lamps, and in specific practice, the size of the cabinet 100 can be in the range of 500-5000mm in length, 500-6000mm in width and 1000-8000mm in height according to the number of lamps.

[0027] The bottom of the cabinet body 100 is provided with four universal wheels 1. The cabinet body 100 is made of metal material.

[0028] Operation instruction:

[0029] The power supply is connected to the internal circuit through the main air switch 11 and the small circuit breaker switch 28. When the two switches are closed, the four cooling fans 29 start working. Press the start button switch 7, and the contacts of the timing time relay 22 control the 23 AC contactor to be turned on, Figure 4 , Figure 5 , Figure 6 Three groups of electrodeless ultraviolet lamps and electronic ballasts, the output of the electronic ballast is connected to the electrodeless ultraviolet lamp tube, and the ultraviolet lamp outputs UVC ultraviolet light after being powered on.

[0030] Figure 4 , Figure 5 , Figure 6 Three groups are connected to 15, 16, and 17 three energy management drivers, respectively. Through the energy management driver, the power, voltage, current and other parameters are monitored, and then connected to the intelligent lighting gateway 21, connected to the Internet through the wireless network. Users can use a special application APP through a terminal device such as a smart phone or a computer to realize remote control and management of the control cabinet. 19 is an RS485 interface connected to a wind speed sensor, a temperature and humidity sensor, and an ultraviolet sensor. 20 is an RS485 interface connected to a liquid crystal display screen, and 18 is a smart 4G wireless industrial router. It can realize data acquisition and transmission, abnormal alarm, remote control and maintenance functions, etc. 26 switch power supply generates 24V power supply for control circuit use.

[0031] The intelligent control system is based on modern communication technology, computer technology and automatic control technology, and realizes remote monitoring and control of the UVC ultraviolet equipment. Functional characteristics: 1, the remote monitoring platform collects the running state data of the equipment in real time through the installation of various sensors and monitoring equipment, such as current, voltage, power, wind speed, ultraviolet intensity, temperature and humidity, etc. Parameters, and through network transmission to the remote center, workers can understand various data in real time through computer and mobile phone. 2, the intelligent control user can remotely start, stop, power adjust and parameter set of UVC ultraviolet disinfection equipment through remote control and other control methods. Support for querying and exporting historical data of the equipment, convenient for subsequent data analysis and processing of workers. Self-alarm supports alarm on upper and lower limits of monitoring parameters, equipment on-off state, etc. In the form of platform information and APP message, remind workers to handle in time. 5, the system adopts various safety protection measures such as overload protection, overheat protection and short circuit protection to ensure the safe operation of UVC ultraviolet disinfection equipment. The running state of the equipment is monitored and judged in real time, and protection measures will be taken immediately once abnormal conditions are found. 6, the advantage of remote intelligent control is that it can reduce the cost of personnel, improve the response speed, optimize the operation cost and improve the management level.

[0032] Selection of ultraviolet light source: factors to consider: 1, UVC conversion efficiency of ultraviolet light source; 2, service life of ultraviolet light source; 3, size and power density of ultraviolet light source, disinfection dose = ultraviolet intensity x disinfection time, the space in the disinfection cabinet is limited, so it is necessary to choose ultraviolet light source with high power density and small size.

[0033] In view of the characteristics of several common UVC light sources at present, electrodeless ultraviolet UVC light source is selected as the light source of fast maintenance-free intelligent electrodeless ultraviolet disinfection control cabinet, which has high cost performance, the reasons are as follows:

[0034] ①LED UVC conversion efficiency <2%, and high price, low cost performance, not practical at present.

[0035] ②Traditional UVCLP(low pressure mercury lamp efficiency 30%-35%) but with lamp electrode, and electrode loss limits the service life of LP(low pressure mercury lamp), average life 8 thousand hours(UVC output less than 70%) brings maintenance difficulties such as frequent replacement of light source to the application of actual product; and the size of light source is longer, 36WT5 UVC lamp length is about 1.2 meters, power density is low.

[0036] The electrodeless lamp UVC light source with electrodeless structure has a UVC conversion efficiency of 35%, and the lamp power is coupled by electromagnetic induction, so that the life of the UVC light source is greatly prolonged (more than 70% output for 60,000 hours), and higher ultraviolet radiation intensity can be provided in limited space to complete rapid disinfection.

[0037] In the embodiment, eighteen electrodeless ultraviolet lamp tubes are respectively installed on the surfaces of the two sides of the cabinet body, and are operated with large lamp power (18*50-1000W=5400W) to improve the UVC ultraviolet radiation intensity, complete disinfection of viruses and bacteria, and the index bacteria are Staphylococcus aureus, and the killing efficiency is greater than or equal to 99.9%, and the killing efficiency of Escherichia coli is greater than or equal to 99.9%.

[0038] The electrodeless ultraviolet light source is used as the light source of the intelligent electrodeless disinfection system control cabinet, has a long life (70% @ 60,000 hours), a small size (compared with traditional ultraviolet light sources T5 and T8 low-pressure mercury lamps), high lamp surface ultraviolet radiation intensity, and greatly improved UVC ultraviolet radiation intensity.

[0039] As can be seen from the above analysis, the electrodeless UVC ultraviolet light source is more compact than the UVC ultraviolet light source with the same power, is suitable for limited space in the cabinet body, and has high power density and rapid disinfection requirements.

[0040] The electrodeless lamp is composed of a glass lamp tube and a magnetic core winding, and is filled with mercury atoms and inert gas. The magnetic core winding creates a magnetic field around the glass lamp tube and causes acceleration of free electrons through the frequency generated by the constant power electronic ballast. The free electrons and mercury atoms collide to excite the ionization of the inert gas inside the glass lamp tube. When the activated electrons fall from the high-energy state to the low-energy state, ultraviolet rays are emitted.

[0041] The intelligent electrodeless ultraviolet disinfection system control cabinet of the utility model adopts the electrodeless ultraviolet light source, can achieve a UVC conversion efficiency of the ultraviolet light source of 35%, saves electricity, prolongs the service life of the ultraviolet light source, is maintenance-free, the electrodeless ultraviolet light source has a small size and high power density, can provide higher ultraviolet radiation intensity in limited space, and realizes rapid disinfection of viruses and bacteria in air.

[0042] The above embodiment and drawing are not limited to the product form and style of the utility model, and any ordinary technical personnel in the technical field can make appropriate changes or modifications, which should be considered as not departing from the patent category of the utility model.

Claims

1. An intelligent non-polar ultraviolet disinfection device for central air conditioning ventilation system, characterized in that: The utility model relates to a cabinet for disinfecting and sterilizing air, comprising: a cabinet body, the side of the cabinet body is communicated with a pipeline air inlet, and the upper part of the cabinet body is communicated with a pipeline air outlet for purified air; n electrodeless ultraviolet lamps with a power of 50-1000W are installed on the inner surfaces of the two sides of the cabinet body, wherein n is 1-100; the electrodeless ultraviolet lamps are respectively connected with electrodeless lamp constant-power electronic ballast devices, and the electrodeless lamp constant-power electronic ballast devices are installed in the interior of the cabinet body; an intelligent disinfecting and sterilizing control system is installed on the upper part of the cabinet body; the intelligent disinfecting and sterilizing control system is connected with the electrodeless lamp constant-power electronic ballast devices; the control system further comprises a liquid crystal display screen for displaying power, voltage, ultraviolet intensity, temperature and humidity, and wind speed.

2. The intelligent non-polar ultraviolet sterilization device for central air conditioning ventilation system according to claim 1, characterized in that: the six inner surfaces of the cabinet body are each provided with a diffuse reflection aluminum plate for improving the utilization rate of the ultraviolet light source.

3. The intelligent non-polar ultraviolet sterilization device for central air conditioning ventilation system according to claim 1, characterized in that: the length of the cabinet body is 500-5000mm, the width is 500-6000mm, and the height is 1000-8000mm.

4. The intelligent non-polar ultraviolet sterilization device for central air conditioning ventilation system according to claim 1, characterized in that: four universal wheels are arranged on the bottom of the cabinet body.

5. The intelligent non-polar ultraviolet sterilization device for central air conditioning ventilation system according to claim 1, characterized in that: the cabinet body is made of metal material.

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