CN112121204A - A rotatable ultraviolet disinfection lamp for ventilation system - Google Patents

Abstract

The present invention provides a rotatable ultraviolet disinfection lamp for a ventilation system. The disinfection lamp is arranged in a ventilation pipe of the ventilation system, and includes an ultraviolet lamp and a lamp rotation mechanism; the lamp rotation mechanism drives the ultraviolet lamp to rotate to The irradiation area of the light-emitting surface of the ultraviolet lamp tube at the ventilation tube is enlarged; the invention can strengthen the disinfection effect of the ventilation tube through the rotation of the lamp tube, and make the lamp tube evenly affected by wind and not easily damaged.

Description

A rotatable ultraviolet disinfection lamp for ventilation system

technical field

The invention relates to the technical field of ventilation system design, in particular to a rotatable ultraviolet disinfection lamp for ventilation systems.

Background technique

At present, after a long-term shutdown of the air-conditioning and ventilation system in public places, the accumulated water and ash inside the air-conditioning are easy to breed microorganisms and bacteria, which become the source of infection or the main way to spread the virus. The disinfection and sterilization of the air-conditioning and ventilation system is very important. In recent years, the relevant requirements and specifications for ventilation systems have been continuously improved, and the development of a new simple and efficient disinfection and sterilization method for ventilation systems has become the focus and hot spot of this research field.

At present, the disinfection and sterilization methods of the ventilation duct system are mostly large-scale disinfection treatment using chemical disinfectants. Common chemical disinfectants are quaternary ammonium salt disinfectants (represented by benzalkonium chloride and benzalkonium Oxide-based disinfectants (represented by hydrogen peroxide and peracetic acid), chlorine-containing disinfectants (represented by 84 disinfectant, bleaching powder), alcohol-based disinfectants, etc. There are many problems with this chemical disinfection method:

1. When using chemical disinfectants for disinfection, it is necessary to close the ventilation system and conduct a comprehensive cleaning and disinfection of the system, which is inefficient and takes a long time. It can only be used for seasonal regular disinfection, which will affect the ventilation effect of the place. .

2. After using chemical disinfectants, the spread of excessive residual disinfectants through the ventilation system will affect the physical and mental health of the human body, produce peculiar smells, and cause secondary pollution of the environment and other problems.

The existing conventional ultraviolet disinfection also has the following shortcomings:

(1) The common ultraviolet lamp is mercury lamp. Mercury, as a highly toxic heavy metal, will cause damage to the environment and people after damage and leakage.

(2) The irradiation range of the fixed ultraviolet lamp is limited, and it will produce a dead angle of irradiation, which will cause the growth of bacteria and viruses, and make the efficiency of sterilization and disinfection low.

UV disinfection lamps are widely used in industry, medical and our daily life. For different application directions, there are different requirements for inactivation rate: one is the ultraviolet radiation dose of a specific wavelength, and the other is the sensitivity of microorganisms related to the inactivation rate to ultraviolet radiation. The disinfection effect of ultraviolet rays is determined by the radiation dose received by the microorganisms. Decide. According to the existing literature, the disinfection effect of ultraviolet rays between 200 and 280 nm is the best. The types of UV disinfection lamps used in different fields are also different. In the medical field, the application of ultraviolet rays is mainly used for indoor disinfection and sterilization. The application of ultraviolet rays in water treatment is the combined disinfection of various types of ultraviolet lamps and other methods (such as ultrasonic waves, disinfectants, etc.).

In the ventilation system, the application of ultraviolet rays has certain feasibility. After the outbreak of the SARS epidemic in 2003, the state promulgated relevant specifications on the use of ultraviolet rays in ventilation systems, such as the time requirement for the irradiation intensity of 6000-7000 μW.s/cm2 or more. In the ventilation system, by using the uniform radiation of ultraviolet energy, it can work continuously throughout the day, and the continuous radiation of ultraviolet rays can effectively inhibit the reproduction of pathogenic microorganisms. In addition to the effect of sterilization and disinfection, ultraviolet rays also have the function of purifying the air.

The application of the existing conventional ultraviolet disinfection in the ventilation system is to install the ultraviolet lamp tube on one side or the outlet side of the pipe, and irradiate it in a fixed range to carry out disinfection in a limited area. At the same time, auxiliary methods are needed to cooperate with the disinfection and sterilization work, such as Filters, electrostatic sterilization devices, chemical disinfectants, etc. can achieve efficient disinfection effects. The working range of the UV lamp is the unilateral area of the irradiation surface. There are differences in the disinfection and sterilization effects of the near side of the lamp tube and the far side of the lamp tube. , which results in an increase in the cost of ventilation ducts, which is not conducive to later operation and maintenance. In the case where the ventilation system is not equipped with a filter and dust removal device, the duration of UV irradiation is proportional to the removal rate, and it only reaches about 60% in the case of two hours of irradiation. Most of the traditional UV lamps are installed in a fixed way, so effective sterilization and disinfection cannot be carried out in the blind area of the irradiation, resulting in the growth of microorganisms; in addition, the wind-receiving side of the lamp has long been exposed to viruses and bacteria in the ventilation system for a long time. Due to the impact of wind flow, more dirt remains on the surface of the lamp tube, resulting in poor sterilization effect; the life of the lamp tube is shortened, and the frequent replacement of the ultraviolet lamp tube will affect the disinfection and sterilization effect of the ventilation system. On the other hand, the traditional UV disinfection method requires the installation of many lamps, which requires large energy consumption and increases operating costs.

SUMMARY OF THE INVENTION

The invention provides a rotatable ultraviolet disinfection lamp for a ventilation system, which can strengthen the disinfection effect of the ventilation pipe through the rotation of the lamp pipe, and make the lamp pipe evenly affected by wind and not easily damaged.

The present invention adopts the following technical solutions.

A rotatable ultraviolet disinfection lamp for a ventilation system, the disinfection lamp is arranged in a ventilation pipe of the ventilation system, and includes an ultraviolet lamp and a lamp rotation mechanism; the lamp rotation mechanism drives the rotation of the ultraviolet lamp to expand the ultraviolet lamp The irradiated area of the luminous surface of the tube at the ventilation duct.

The ultraviolet lamp tube of the disinfection lamp is in the shape of a long strip; a plurality of disinfection lamps are arranged in parallel in the ventilation pipe.

The long side of the ultraviolet lamp is perpendicular to the direction of the ventilation pipe.

A plurality of ultraviolet lamps (3) are arranged in several rows in the ventilation pipe (5) to form a lamp array; one end of the disinfection lamp is arranged at one side wall of the ventilation pipe with a lamp holder (2), and the other end is arranged with a lamp holder (2). The lamp tube fixing shaft (4) is vertically fixed on the other side tube wall of the ventilation tube.

The lamp array is connected with a control module; the control module controls the rotation of each ultraviolet lamp in the lamp array, so that the light-emitting surfaces of the ultraviolet lamps in the same row in the lamp array face the same, but The light-emitting surfaces of different rows of UV lamps have different orientations.

The disinfection lamp is fixed on the wall of the ventilation pipe by a lamp holder; one end of the lamp holder is connected with an external power supply circuit (1), and the other end is fixed with a lamp holder (24) to fix the ultraviolet lamp; the lamp holder includes a drive The rotating motor assembly that rotates the UV lamp tube.

The rotary motor assembly comprises a rotary motor motor (21) and a rotary motor protective cover (22); the rotary motor motor is connected with the lamp tube holder by a motor shaft (23), and drives the lamp tube holder to rotate, so as to make the ultraviolet rays The lamp tube rotates 360 degrees.

The rotating electrical machine protective cover is an arc-shaped structure that can reduce wind impact.

The ultraviolet rays of the ultraviolet lamp can kill microorganisms in the air flow of the ventilation pipe and inhibit the growth of microorganisms on the inner wall of the ventilation pipe.

The cross section of the ventilation pipe is rectangular.

The device of the invention installs the ultraviolet lamp in the ventilation system. Driven by the rotation of the rotating motor, the lamp tube is evenly exposed to the wind, avoiding the occurrence of dead angle of irradiation, prolonging the service life of the lamp tube and reducing the number of lamp tube replacements. In addition to reducing costs, the disinfection and sterilization effect is also significantly increased. The installation and use of rotatable ultraviolet disinfection lamps in the ventilation system can increase the sterilization rate of different types of colonies to 80% to 98%.

Compared with the traditional ultraviolet disinfection and sterilization method, the invention has a more efficient disinfection and sterilization effect.

The rotatable ultraviolet disinfection lamp of the present invention is used for disinfection, and the operation is simple and convenient, the use of chemical disinfection reagents is reduced, and the number of times of system cleaning can be reduced, the disinfection and disinfection work can be carried out at the same time when the ventilation system is running, and the efficiency of ultraviolet disinfection and disinfection is improved. , and friendly to the environment, will not produce substances harmful to the human body.

The advantage of the present invention also lies in:

1. By rotating the motor device, the number of UV lamps in the ventilation duct can be reduced to achieve a better disinfection and sterilization effect.

2. By rotating the motor device, the UV lamp is evenly impacted by the wind, and the service life of the UV lamp is prolonged.

3. Through the rotating motor device, the ultraviolet lamp irradiates the inner wall of the ventilation duct evenly without dead angle, the irradiation area is greatly increased, and the reproduction of bacteria is effectively inhibited.

4. The motor part at the top of the device is set with an arc-shaped protective cover, which effectively reduces the influence of wind resistance on the ventilation duct.

Description of drawings

The present invention will be described in further detail below in conjunction with the accompanying drawings and specific embodiments:

Accompanying drawing 1 is the schematic diagram of the present invention;

Accompanying drawing 2 is the principle schematic diagram of the present invention;

Accompanying drawing 3 is the fixed schematic diagram of disinfection lamp;

Accompanying drawing 4 is the structural representation of lamp holder;

In the figure: 1-external power supply circuit; 2-lamp holder; 3-ultraviolet lamp tube; 4-lamp tube fixing shaft; 5-ventilation pipe;

21-rotating motor motor; 22-rotating motor protective cover; 23-motor shaft; 24-lamp tube holder;

100- the grille in the ventilation pipe; 101- the light-emitting surface of the ultraviolet lamp.

Detailed ways

As shown in the figure, a rotatable ultraviolet disinfection lamp for ventilation system, the disinfection lamp is arranged in the ventilation pipe of the ventilation system, and includes an ultraviolet lamp tube and a lamp tube rotation mechanism; the lamp tube rotation mechanism drives the ultraviolet lamp tube Rotate to expand the irradiation area of the light-emitting surface 101 of the ultraviolet lamp at the ventilation pipe.

The ultraviolet lamp tube of the disinfection lamp is in the shape of a long strip; a plurality of disinfection lamps are arranged in parallel in the ventilation pipe.

The long side of the ultraviolet lamp is perpendicular to the direction of the ventilation pipe.

A plurality of ultraviolet lamp tubes 3 are arranged in several rows in the ventilation tube 5 and form a lamp tube array; one end of the disinfection lamp is arranged at one side wall of the ventilation tube with a lamp holder 2, and the other end is perpendicular to the lamp tube fixing shaft 4. It is fixed to the other side wall of the ventilation pipe.

The lamp array is connected with a control module; the control module controls the rotation of each ultraviolet lamp in the lamp array, so that the light-emitting surfaces of the ultraviolet lamps in the same row in the lamp array face the same, but The light-emitting surfaces of different rows of UV lamps have different orientations.

The disinfection lamp is fixed on the wall of the ventilation pipe with a lamp holder; one end of the lamp holder is connected with the external power supply circuit 1, and the other end is fixed with a lamp holder 24 to fix the ultraviolet lamp; the lamp holder includes a drive to drive the ultraviolet lamp to rotate. Rotary motor assembly.

The rotary motor assembly includes a rotary motor motor 21 and a rotary motor protective cover 22; the rotary motor motor is connected with the lamp holder by a motor shaft 23, and drives the lamp holder to rotate, so that the ultraviolet lamp can rotate 360 degrees.

The rotating electrical machine protective cover is an arc-shaped structure that can reduce wind impact.

The ultraviolet rays of the ultraviolet lamp can kill microorganisms in the air flow of the ventilation pipe and inhibit the growth of microorganisms on the inner wall of the ventilation pipe.

The cross section of the ventilation pipe is rectangular.

Example:

After the external power supply line 1 is connected, power is supplied to the rotary electric motor 21 and the ultraviolet lamp tube 3 . When there is an impinging wind flow in the ventilation duct system, the rotating electrical machine protective cover 22 protects the rotating electrical machine motor 21 and the rotating electrical machine motor shaft 23 to avoid damage to the rotating electrical machine caused by the impact of the wind flow.

The rotary motor motor 21 connected to the power supply is connected with the rotary motor motor shaft 23, which drives the rotary motor motor shaft 23 to rotate, and the rotary motor motor shaft 23 is connected with the lamp tube holder 24, so that the rotary motor motor shaft 23 drives the ultraviolet lamp tube. 3 is rotated, the ultraviolet lamp 3 is connected with the lamp fixing shaft 4, and the lamp fixing shaft 4 is fixed with the inner wall of the ventilation duct on the opposite side, so as to ensure that the ultraviolet lamp 3 will not be displaced due to the impact of wind flow during operation.

The above process realizes the safe rotation of the ultraviolet lamp from 0 to 360°, and enables the ultraviolet lamp to perform irradiation disinfection and sterilization work in multiple ranges and without dead angle.

After the wind flow enters the ventilation duct installed with the rotatable ultraviolet disinfection lamp, under the continuous irradiation of the ultraviolet disinfection lamp, the microorganisms existing in the wind flow are killed by ultraviolet rays. When the air flow reaches the air outlet after passing through the entire ventilation duct, the survival rate of bacteria has been reduced to a safe range. The rotatable UV lamp can not only eliminate the microorganisms in the wind flow and purify the air, but also inhibit the growth of microorganisms on the inner wall of the ventilation duct, which can ensure the cleanliness of the ventilation duct and reduce the cleaning of the ventilation duct by chemical disinfectants. , to improve the disinfection and sterilization efficiency of the ventilation system.

Claims (10)

1. A rotatable formula ultraviolet disinfection lamp for ventilation system which characterized in that: the sterilizing lamp is arranged in a ventilation pipe of the ventilation system and comprises an ultraviolet lamp tube and a lamp tube rotating mechanism; the lamp tube rotating mechanism drives the ultraviolet lamp tube to rotate so as to expand the irradiation area of the light emitting surface of the ultraviolet lamp tube at the ventilation tube.

2. The rotatable ultraviolet disinfection lamp for a ventilation system of claim 1, wherein: the ultraviolet lamp tube of the disinfection lamp is in a strip shape; a plurality of disinfection lamps are arranged in the ventilation pipe in parallel.

3. A rotatable ultraviolet disinfection lamp for a ventilation system as claimed in claim 2, wherein: the long side of the ultraviolet lamp tube is perpendicular to the trend of the ventilation tube.

4. A rotatable ultraviolet disinfection lamp for a ventilation system as claimed in claim 2, wherein: a plurality of ultraviolet lamp tubes (3) are arranged in a plurality of rows in the ventilation pipe (5) to form a lamp tube array; one end of the disinfection lamp is arranged on the pipe wall of one side of the ventilation pipe through a lamp holder (2), and the other end of the disinfection lamp is vertically fixed on the pipe wall of the other side of the ventilation pipe through a lamp tube fixing shaft (4).

5. The rotatable ultraviolet disinfection lamp for a ventilation system of claim 4, wherein: the lamp tube array is connected with the control module; the control module controls the rotation action of each ultraviolet lamp tube in the lamp tube array so that the light emitting surfaces of the ultraviolet lamp tubes in the same row in the lamp tube array face the same direction, but the light emitting surfaces of the ultraviolet lamp tubes in different rows face different directions.

6. The rotatable ultraviolet disinfection lamp for a ventilation system of claim 1, wherein: the sterilizing lamp is fixed on the wall of the ventilating pipe by a lamp holder; one end of the lamp holder is connected with the external power circuit (1), and the other end of the lamp holder fixes the ultraviolet lamp tube by the lamp tube fixer (24); the lamp holder includes a rotating motor assembly that drives the ultraviolet lamp tube to rotate.

7. The rotatable ultraviolet disinfection lamp for a ventilation system of claim 6, wherein: the rotating electric machine assembly includes a rotating electric machine motor (21), a rotating electric machine protective cover (22); the rotating motor is connected with the lamp tube fixer through a motor rotating shaft (23) and drives the lamp tube fixer to rotate so as to enable the ultraviolet lamp tube to rotate 360 degrees.

8. The rotatable ultraviolet disinfection lamp for a ventilation system of claim 7, wherein: the rotating motor protective cover is of an arc-shaped structure capable of reducing wind impact.

9. The rotatable ultraviolet disinfection lamp for a ventilation system of claim 1, wherein: the ultraviolet rays of the ultraviolet lamp tube can kill microorganisms in the wind flow of the ventilation tube and inhibit the growth of the microorganisms on the inner wall of the ventilation tube.

10. The rotatable ultraviolet disinfection lamp for a ventilation system of claim 1, wherein: the section of the ventilating pipe is rectangular.

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