阅读说明：本技术 一种可用于平疫结合的地铁空调机组及其运行方法 (Subway air conditioning unit capable of being used for epidemic prevention combination and operation method thereof ) 是由 王继红 张腾飞 王树刚 吴小舟 于 2021-08-11 设计创作，主要内容包括：本发明公开了一种可用于平疫结合的地铁空调机组及其运行方法,所述运行方法包括在平时,以机组空腔段为装配式消毒杀菌段预留安装位置,并预留有装配式消毒杀菌段所需要的专用电源,空调机组按照一次回风模式运行；在疫情时,立即将机组空腔段拆除,同时将装配式消毒杀菌段安装在预留位置,并连通电源,利用静电吸附原理和紫外线照射对回风进行消毒杀菌,并通过高效过滤器对消毒杀菌后的气体过滤,保证将车站公共区的回风处理到安全洁净的新风标准。本发明实现车站通风空调系统平时和疫情时均可以安全、洁净、节能运行,降低了乘客高密度集聚在站内交叉感染的风险。(The invention discloses a subway air conditioning unit capable of being used for tie epidemic combination and an operation method thereof, wherein the operation method comprises the steps of reserving an installation position for an assembled disinfection and sterilization section by using a unit cavity section at ordinary times, reserving a special power supply required by the assembled disinfection and sterilization section, and operating the air conditioning unit according to a primary air return mode; when the epidemic situation, demolish the unit cavity section immediately, install assembled disinfection section in the reservation position simultaneously, and connect the power, utilize electrostatic absorption principle and ultraviolet irradiation to carry out disinfection to the return air to through high efficiency filter to the gas filtration after disinfection, guarantee to handle safe clear new trend standard with the return air of station public area. The invention realizes that the ventilation air-conditioning system of the station can run safely, cleanly and energy-saving at ordinary times and in epidemic situations, and reduces the risk of cross infection of high-density passengers gathered in the station.)

1. A subway air conditioning unit capable of being used for epidemic prevention combination is characterized by comprising a fresh air section, an air mixing section, a sterilizing section, an air processing section, a fan section and an air outlet section in sequence according to the airflow direction, wherein the sterilizing section is an assembly type sterilizing section, the installation position of the sterilizing section is reserved in a cavity section of the unit at ordinary times, and a special power supply is reserved in the sterilizing section.

2. A subway air conditioning unit capable of being used in tie epidemic combination as claimed in claim 1, wherein said assembled disinfection and sterilization section comprises a unit housing, an electrostatic collection device is arranged in the air intake section of said unit housing in the direction perpendicular to the air flow of the supply air, said electrostatic collection device utilizes the high voltage electrostatic dust collection principle to perform high voltage ionization dust collection on the carrier aerosol of new coronavirus; the top of the unit shell is provided with an ultraviolet lamp box, a plurality of ultraviolet lamp tubes are distributed on the ultraviolet lamp box, and the ultraviolet lamp tubes emit ultraviolet rays to enable new coronavirus proteins to be subjected to photolysis and denaturation, so that virus nucleic acids are damaged and die; the outlet end of the unit shell is provided with a high-efficiency filter for efficiently filtering the gas after disinfection and sterilization.

3. A subway air conditioning unit capable of being used in tie epidemic prevention combination as claimed in claim 2, wherein said static electricity collecting device comprises high voltage static positive pole dust collecting plates, high voltage static negative coils and dust collecting pool, said high voltage static positive pole dust collecting plates are located on two sides of inner wall of unit casing, said high voltage static negative coils are located between said high voltage static positive pole dust collecting plates and top portion of said high voltage static negative coils is fixed on unit casing, said unit casing bottom portion is equipped with dust collecting pool.

4. A metro air conditioning unit capable of being used in tie epidemic combination according to claim 3, wherein the electrostatic collection device maintains an electric field sufficient for gas ionization by using high voltage power, the gas generates anions and cations after ionization, the anions and cations are adsorbed on aerosol carrying new corona virus passing through the electric field, so that the aerosol obtains electric charge, the aerosols with different electric charge polarities respectively move to electrodes with different polarities under the action of the electric field force, and the aerosol is deposited on a high voltage electrostatic positive electrode dust collection plate or a high voltage electrostatic negative electrode coil, thereby achieving the purpose of virus and gas separation.

5. A subway air conditioning unit capable of being used in tie epidemic prevention combination as claimed in claim 3, wherein an insulating layer is provided between said high voltage electrostatic positive dust collecting plate and the unit casing.

6. A subway air conditioning unit as claimed in claim 2, wherein when said ultraviolet rays irradiate the air, the oxygen in the air is ionized to generate a small amount of ozone, which further improves the sterilization effect.

7. A metro air conditioning unit capable of being used in tie-epidemic combination according to claim 2, wherein the filtration efficiency of the filter screen in the high efficiency filter to 0.1-0.3 μm particles can reach 99.7%.

8. A subway air conditioning unit operation method capable of being used for epidemic prevention combination specifically comprises the following steps: a central air-conditioning system in a subway station is set into two operation modes of normal time and epidemic time;

at ordinary times, a unit cavity section is used as a reserved installation position of the assembled disinfection and sterilization section, a special power supply required by the assembled disinfection and sterilization section is reserved, and the central air conditioning unit operates in a primary air return mode;

when the epidemic situation, demolish the unit cavity section immediately, install assembled disinfection section in the reservation position simultaneously, and connect the power, utilize electrostatic absorption principle and ultraviolet irradiation to carry out disinfection to the return air to through high efficiency filter to the gas filtration after disinfection, guarantee to handle safe clear new trend standard with the return air of station public area.

Technical Field

The invention relates to the technical field of ventilation and air conditioning systems, in particular to a subway air conditioning unit capable of being used for epidemic prevention combination and an operation method thereof.

Background

Research shows that the transmission routes of the new coronavirus are mainly direct transmission, contact transmission and aerosol transmission. The risk of transmission of new coronaviruses is particularly high in large public spaces and places of people gathering, since a central air-conditioning system is usually provided.

The subway station is a relatively closed space as a public transportation place with dense people stream, and the risk of spreading the new coronavirus through aerosol is extremely high. However, the subway is the most important way for citizens to travel, and even in a severe epidemic situation, the subway is selected not to stop as far as possible, so that the difficulty in traveling and the problem of the linked society of citizens are avoided.

Disclosure of Invention

In order to solve the technical problems of preventing the new coronavirus in the public area of the subway station from being spread and cross-infected through aerosol and improving the thermal comfort of the space environment in the epidemic situation period, the application provides a subway air conditioning unit capable of being used for epidemic prevention combination and an operation method thereof.

In order to achieve the purpose, the technical scheme of the application is as follows: a subway air conditioning unit capable of being used for epidemic prevention combination sequentially comprises a fresh air section, an air mixing section, a sterilizing section, an air processing section, a fan section and an air outlet section according to the airflow direction, wherein the sterilizing section is an assembly type sterilizing section, the installation position of the sterilizing section is reserved in a cavity section of the unit at ordinary times, and a special power supply is reserved in the sterilizing section.

Furthermore, the assembly type disinfection and sterilization section comprises a unit shell, an air inlet section of the unit shell is provided with a static collecting device in the direction vertical to the air supply flow, and the static collecting device carries out high-pressure ionization dust collection on carrier aerosol of the new coronavirus by utilizing a high-pressure static dust collection principle; the top of the unit shell is provided with an ultraviolet lamp box, a plurality of ultraviolet lamp tubes are distributed on the ultraviolet lamp box, and the ultraviolet lamp tubes emit ultraviolet rays to enable new coronavirus proteins to be subjected to photolysis and denaturation, so that virus nucleic acids are damaged and die; the outlet end of the unit shell is provided with a high-efficiency filter for efficiently filtering the gas after disinfection and sterilization.

Further, the static collection device includes that the positive pole of high-voltage static gathers dust board, high-voltage static negative pole coil and collection dirt pool, the positive pole of high-voltage static gathers dust the board and is located the both sides of unit housing inner wall, and high-voltage static negative pole coil is located between the positive pole of high-voltage static gathers dust the board and the top is fixed on the unit housing, unit housing bottom is equipped with the collection dirt pool.

Furthermore, the electrostatic collecting device maintains an electric field which is enough to ionize the gas by using high-voltage power, the gas generates anions and cations after ionization, the anions and the cations are adsorbed on the aerosol carrying the new coronavirus passing through the electric field, the aerosol obtains charges, the aerosols with different charge polarities respectively move to electrodes with different polarities under the action of the electric field force and are deposited on a high-voltage electrostatic positive electrode dust collecting plate or a high-voltage electrostatic negative electrode coil, and therefore the purpose of separating the virus from the gas is achieved.

Furthermore, an insulating layer is arranged between the high-voltage electrostatic positive electrode dust collection plate and the unit shell.

Furthermore, when the ultraviolet rays irradiate the air, oxygen in the air is ionized to generate a small amount of ozone, so that the sterilization effect can be further improved.

Furthermore, the filtering efficiency of a filter screen in the high-efficiency filter on particles with the particle size of 0.1-0.3 mu m can reach 99.7%, the cleanliness and the safety of return air flow can be further ensured, and the air quality is improved.

Above-mentioned subway air conditioning unit utilizes static collection device to the fixed action and the powerful bactericidal action of ultraviolet irradiation of carrying new coronavirus aerosol, carries out high strength to it and lasts to kill.

The application also provides a subway air conditioning unit operation method for epidemic prevention combination, which specifically comprises the following steps: a central air-conditioning system in a subway station is set into two operation modes of normal time and epidemic time;

at ordinary times, a unit cavity section is used as a reserved installation position of the assembled disinfection and sterilization section, a special power supply required by the assembled disinfection and sterilization section is reserved, and the central air conditioning unit operates in a primary air return mode;

when the epidemic situation, demolish the unit cavity section immediately, install assembled disinfection section in the reservation position simultaneously, and connect the power, utilize electrostatic absorption principle and ultraviolet irradiation to carry out disinfection to the return air to through high efficiency filter to the gas filtration after disinfection, guarantee to handle safe clear new trend standard with the return air of station public area.

Due to the adoption of the technical scheme, the invention can obtain the following technical effects: the invention realizes the safe operation of the subway air conditioning system at ordinary times and in epidemic situations, and can meet the requirements of the public space temperature, humidity and cleanliness of the subway station to the maximum extent. Especially, in the presence of an epidemic situation, the high-strength disinfection and sterilization of the return air flow of the central air-conditioning system can be realized, the introduction of a large amount of fresh air in non-transitional seasons is avoided, the safe, clean and energy-saving operation of the station ventilation air-conditioning system can be realized at ordinary times and in the epidemic situation, the risk of cross infection of passengers gathered in the station at high density is reduced, and the safety of citizens taking subways is improved. The invention can also be analogized to be used in large public buildings which need epidemic conversion, and provides safe and favorable indoor thermal comfortable environment for common epidemic prevention of the whole society.

Drawings

FIG. 1 is a structural diagram of a subway air conditioning unit which can be used for epidemic prevention combination;

FIG. 2 is a top sectional view of a sterilization section of the air conditioning unit;

fig. 3 is a cross-sectional view of the disinfection section of the air conditioning unit perpendicular to the direction of airflow.

The sequence numbers in the figures illustrate: 1. a fresh air section; 2. a wind mixing section; 3. a sterilization section; 4. an air treatment section; 5. a fan section; 6. an air outlet section; 7. a high-voltage electrostatic anode dust collection plate; 8. a high voltage electrostatic negative coil; 9. a high efficiency filter; 10. a dust collecting tank; 11. an ultraviolet lamp tube; 12. an ultraviolet lamp box; 13. an insulating layer; 14. the unit shell.

Detailed Description

The embodiments of the present invention are implemented on the premise of the technical solution of the present invention, and detailed embodiments and specific operation procedures are given, but the scope of the present invention is not limited to the following embodiments.

Example 1

In an epidemic situation, in order to reduce the risk of spreading new coronavirus through aerosol, the most effective mode is to increase the fresh air volume of station halls and platforms (public areas) of the subway station. When the subway station public area is in a transition season, the operation mode of the central air conditioning system can be adjusted to be full fresh air operation, so that the fresh air volume is improved, and the infection risk of personnel gathering is reduced. However, in non-transitional seasons, if the operation is still carried out by adopting full fresh air, the cold and heat loads of the fresh air are not born by the existing assembly units, and the overheating or the overcooling of the station public area is caused, especially for a screen door system. Therefore, the most economical and feasible mode in the new crown epidemic situation still needs to introduce outdoor fresh air in a proper amount according to the cooling and heating capacity of the central air conditioner, and the operation characteristics of primary return air are combined to carry out high-intensity disinfection and sterilization on the return air in the station public area, so that the return air is purified to the fresh air introduction standard, and the aims of reducing the virus propagation risk and reducing the operation energy consumption are fulfilled.

The invention provides a subway air conditioning unit capable of being used for epidemic prevention combination and an operation method thereof, which is characterized in that an assembly type disinfection and sterilization section capable of being disassembled and assembled immediately before epidemic prevention is additionally arranged behind a wind mixing section of a common combined air conditioning unit. At ordinary times, the assembled disinfection and sterilization section is not installed on the air conditioning unit, the installation position of the assembled disinfection and sterilization section is reserved by utilizing the unit cavity section, and a special power supply required by the assembled disinfection and sterilization section is reserved. The air conditioning unit can operate according to a primary air return mode designed by a central air conditioner at ordinary times, and provides a normal and good thermal comfortable environment for a subway public space. When the epidemic situation comes, demolish the unit cavity section immediately, install assembled disinfection section in the reservation position, disinfect the return air with the help of electrostatic absorption and ultraviolet irradiation to set up high efficiency filter, thoroughly keep apart and eliminate new crown virus at the unit source, make station public area input safe clear air.

The novel air conditioning unit and the operation method thereof provided by the invention do not influence the operation of a subway central air conditioning system at ordinary times, and can ensure the air cleanliness of a public space of a subway station in an epidemic situation period. Cross infection of circulating passengers is avoided to the maximum extent, life safety of people is protected, and subway safe operation in an extraordinary period is realized. In addition, the introduction amount of outdoor fresh air is reduced through the disinfection and sterilization treatment of return air, and the energy-saving operation of a central air-conditioning system is facilitated.

The foregoing descriptions of specific exemplary embodiments of the present invention have been presented for purposes of illustration and description. It is not intended to limit the invention to the precise form disclosed, and obviously many modifications and variations are possible in light of the above teaching. The exemplary embodiments were chosen and described in order to explain certain principles of the invention and its practical application to enable one skilled in the art to make and use various exemplary embodiments of the invention and various alternatives and modifications as are suited to the particular use contemplated. It is intended that the scope of the invention be defined by the claims and their equivalents.