EP2682320B1 - Device for disinfecting the air in underground railway carriages - Google Patents

Device for disinfecting the air in underground railway carriages Download PDF

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Publication number
EP2682320B1
EP2682320B1 EP12743549.3A EP12743549A EP2682320B1 EP 2682320 B1 EP2682320 B1 EP 2682320B1 EP 12743549 A EP12743549 A EP 12743549A EP 2682320 B1 EP2682320 B1 EP 2682320B1
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EP
European Patent Office
Prior art keywords
air
radiation
lamp
railcar
bactericidal
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
EP12743549.3A
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German (de)
French (fr)
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EP2682320A2 (en
Inventor
Sergei Vladimirovich KOSTUCHENKO.
Nikolai Jamalovich KIKNADZE
Sergei Vasilievich TIMAKOV
Dmitry Vladimirovich SOKOLOV
Aleksandr Sergeevich SITNIKOV
Alexander Alexandrovich KARELIN
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Kiknadze Nikolai Dzhemalovich
Original Assignee
Kiknadze Nikolai Dzhemalovich
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Application filed by Kiknadze Nikolai Dzhemalovich filed Critical Kiknadze Nikolai Dzhemalovich
Priority to PL12743549T priority Critical patent/PL2682320T3/en
Publication of EP2682320A2 publication Critical patent/EP2682320A2/en
Application granted granted Critical
Publication of EP2682320B1 publication Critical patent/EP2682320B1/en
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B61—RAILWAYS
    • B61D—BODY DETAILS OR KINDS OF RAILWAY VEHICLES
    • B61D27/00—Heating, cooling, ventilating, or air-conditioning

Definitions

  • the invention relates to the means for passenger railcar air disinfection with the help of bactericidal ultraviolet (UV) radiation and may be used for the ventilation and conditioning systems of ground and underground transport, mainly for subway trains.
  • UV bactericidal ultraviolet
  • a passenger railcar air conditioning device which consists of a compression type chilling machine, air purification filters, outside and recirculation air input devices, adjusting chokes, outside and recirculation air mixing chamber, devices for air distribution from delivery air ducts throughout the passenger space, devices for air elimination from the railcar, electric power supply.
  • a passenger railcar air conditioning device which consists of a compression type chilling machine, air purification filters, outside and recirculation air input devices, adjusting chokes, outside and recirculation air mixing chamber, devices for air distribution from delivery air ducts throughout the passenger space, devices for air elimination from the railcar, electric power supply.
  • UV disinfecting ultraviolet
  • the disinfecting devices may be installed in the recirculation air flow behind the purification filter before the air entry into the air cooler or fan, or in the outside air flow behind the purification filter before the air entry into the air cooler or fan, or installed in the flow of the mixture of outside and recirculation air behind the purification filter before the air entry into the air cooler or fan, or installed in the delivery air duct before the devices for air distribution throughout the passenger space, or in all the above places simultaneously.
  • disinfection of the entire air flow is irrational and requires high energy costs for providing the required UV radiation doze ( RU No 2278794 , B61D27/00, 2004).
  • the device consists of a body with inlet and outlet windows for air, inside which, via impact dampers, is installed a bactericidal UV lamp.
  • the inlet window is closed by a grid assembled from profile elements covered with a photocatalyst layer.
  • the grid prevents the UV radiation escape outside and additionally purifies the air in the photocatalysis process.
  • the device is built into the recirculation channel of the passenger railcar ventilation and conditioning system. In the passenger railcar air supply system, provision is made for the fresh air to be taken to the railcar air distribution system from the outside, and then it is distributed throughout the compartment.
  • the flow of the air infected with microorganisms goes from the railcar through the inlet window into the UV radiation zone, where, after interaction with photocatalyst and under the influence of the bactericidal radiation of the UV lamps, it is disinfected and purified for recirculation and reuse.
  • the disinfected air is then eliminated through the outlet window and, with the help of the conditioner fan, is supplied to the railcar compartment again.
  • powerful low pressure gas discharge amalgam lamps RU U No 78074 , A61L2/10).
  • Document GB 2 415 627 refers to nn air purifier which comprises a housing, the housing having a plurality of air inlets and a plurality of air outlets, an ultraviolet radiation tube means located within said housing between said air inlets and air outlets for generating ultraviolet rays, at least one extractor fan means drawing air into said housing through said air inlet, over the ultraviolet radiation means and out of the housing through the air outlet.
  • An air collector is provided between said extractor fan and said housing.
  • a high negative voltage discharge/carbon fibre is located between the ultraviolet radiation tube and the air outlet to produce and increase the quantity of anions.
  • the purifier may be provided with protection means to prevent extreme ultraviolet radiation being emitted from the housing to protect the eyes of the user.;
  • the system may emit ultraviolet radiation at a wavelength of 253.7nm.
  • the UV tube may be replaceable and the system may be placed in an air-conditioning device.
  • an air purifier comprising inlets and outlets, a filter, an ultraviolet radioactive ray chamber for housing an ultraviolet radiation means, a carbon fibre for regenerating anions, the housing including a rectangular hole-site which fastens an external power line, the air purifier further comprising a switch to turn the power on or off.
  • Document DE 20 2004 008874 discloses an air purifier for a car or other vehicle for removing viruses, bacteria and other micro organisms from air.
  • the air purifier comprising a housing containing at least one extractor fan, a carbon filter and an ultraviolet radiation tube. Air is taken into the device via an air intake trellis which functions to remove dust and other particles from the air, and exits the device via an exhaust frame trellis.
  • the UV tube is easily removable and replaceable and the housing shields the users eyes from any radiation.
  • a drawback of the known device is that the field of its application is limited by the sanitary requirements to the air supply of the passenger railway transport, which air supply system is based on the fact that pure outside air enters it initially and usually there is a recirculation channel, which allows just disinfecting the recirculation air only.
  • the basis of the present invention is the task to create device for efficient disinfection in the ventilation and conditioning systems of such transport facilities where the inflow of the pure air is realized from a limited space - for example, for subway railroads located in a tunnel.
  • the technical result achieved when implementing the invention consists in implementing the possibility of disinfecting the air in the subway railroads, as well as in reducing the disinfection process energy costs.
  • a device On the top surface of the body is applied a sound-absorbing layer fixed on the body with the help of a grid, and on the bottom surface is applied a layer of the vibration-absorbing material.
  • the edge of the body has a downward incline.
  • FIG. 1 and 2 are shown the views of the subway railcar air disinfection device, top and side (in section), and in fig. 3 - bottom view.
  • Body 1 of the device is made open from the top and has recess 2 formed by the bend of the body wall throughout its width.
  • Bactericidal UV lamp 3, fixed on impact dampers 4, is positioned in the body recess, which prevents UV radiation escape to the passenger compartment and conditioner. Between the lamp and the body there is gap 5 for passing of the air flow under the lamp.
  • One of the body edges 6 has partial incline 7 downwards for ensuring smooth expansion of the air channel.
  • the lamp is covered with removable cover 8 fixed to the body so that air flow can pass between the body and the cover.
  • the device operates as follows.
  • the device is built into the air channel in the near-roof space of a subway railcar at the outlet of the conditioner in such a manner that the UV lamp is oriented perpendicularly to the flow of the treated air, and the edge of the body, having a downward incline, is distant along the flow from the inlet of the treated air.
  • the UV lamp operation is controlled by a separate starting controller (SC), connected with it by cable.
  • SC starting controller
  • the external dimensions of the device are approximately 600x900x120 mm, SC - 270x105x62 mm.
  • bactericidal radiation As a source of bactericidal radiation is used a 170 W low pressure gas discharge amalgam lamp.
  • the air flow passing through the air duct is subjected to the bactericidal radiation with a wavelength of 254 nm, and is disinfected. Due to the fact that the lamp is positioned in the recess, it is not overcooled by the passing air flow, the intensity of its radiation does not reduce and constantly ensures the UV radiation doze required for efficient disinfection. Moreover, such position of the lamp protects from UV radiation escape into the compartment and conditioner.
  • the gap between the lamp and the body, as well as between the cover and the body, allows the air flow to freely pass under the device, which ensures uniform distribution of the disinfected air in all zones of the passenger compartment.
  • the lamp is covered with a cover fixed on the body, which prevents UV radiation from passing into the passenger compartment and conditioner.
  • the cover is installed in such a manner that there is a possibility for air passing between the body and the cover, which ensures uniform radiation and disinfection of the treated air flow both above and under the lamp.
  • the disinfected air goes to the passenger compartment, from which, during movement, it is moved to the tunnel and mixes with the ambient air. Then the fans supply air from the tunnel to the conditioner, creating partial recirculation of the air.
  • the presence of the vibration-absorbing layer (for example, vibration-damping fireproof materials VDF with aluminum foil coating) and fixing of the lamp on the impact dampers allows reducing vibration that occurs during movement of the train and the air along the channel and is transmitted to the device's elements down to the acceptable values, and the sound-absorbing material (Supersilika-M2) along with the structural elements (body edge downward incline) reduces the pressure loss and the aerodynamic noise level of the air flow, which increases the comfort of the device's operation.
  • the device is conveniently positioned in the under-roof space of the railcar, while the removable cover ensures easy access to the lamp for maintenance and replacement of the lamp.
  • the present invention allows maintaining the epidemiologically safe for the passengers level of insemination of the air with microorganisms in accordance with the sanitary and hygienic norms of the subway with low energy costs for its disinfection.

Description

    TECHNICAL FIELD
  • The invention relates to the means for passenger railcar air disinfection with the help of bactericidal ultraviolet (UV) radiation and may be used for the ventilation and conditioning systems of ground and underground transport, mainly for subway trains.
    • PRIOR ART
  • Known is a passenger railcar air conditioning device, which consists of a compression type chilling machine, air purification filters, outside and recirculation air input devices, adjusting chokes, outside and recirculation air mixing chamber, devices for air distribution from delivery air ducts throughout the passenger space, devices for air elimination from the railcar, electric power supply. In the channels of the air path of the ventilation system are installed disinfecting ultraviolet (UV) radiation devices, which are connected to the electric power supply. The disinfecting devices may be installed in the recirculation air flow behind the purification filter before the air entry into the air cooler or fan, or in the outside air flow behind the purification filter before the air entry into the air cooler or fan, or installed in the flow of the mixture of outside and recirculation air behind the purification filter before the air entry into the air cooler or fan, or installed in the delivery air duct before the devices for air distribution throughout the passenger space, or in all the above places simultaneously. However, disinfection of the entire air flow is irrational and requires high energy costs for providing the required UV radiation doze ( RU No 2278794 , B61D27/00, 2004).
  • Known is an device for air disinfection by UV radiation in the railway transport ventilation and conditioning systems. The device consists of a body with inlet and outlet windows for air, inside which, via impact dampers, is installed a bactericidal UV lamp. The inlet window is closed by a grid assembled from profile elements covered with a photocatalyst layer. The grid prevents the UV radiation escape outside and additionally purifies the air in the photocatalysis process. The device is built into the recirculation channel of the passenger railcar ventilation and conditioning system. In the passenger railcar air supply system, provision is made for the fresh air to be taken to the
    railcar air distribution system from the outside, and then it is distributed throughout the compartment. After contact with people, the flow of the air infected with microorganisms goes from the railcar through the inlet window into the UV radiation zone,
    where, after interaction with photocatalyst and under the influence of the bactericidal radiation of the UV lamps, it is disinfected and purified for recirculation and reuse. The disinfected air is then eliminated through the outlet window and, with the help of the conditioner fan, is supplied to the railcar compartment again. As a source of bactericidal UV radiation are used powerful low pressure gas discharge amalgam lamps ( RU U No 78074 , A61L2/10).
  • Document GB 2 415 627 refers to nn air purifier which comprises a housing, the housing having a plurality of air inlets and a plurality of air outlets, an ultraviolet radiation tube means located within said housing between said air inlets and air outlets for generating ultraviolet rays, at least one extractor fan means drawing air into said housing through said air inlet, over the ultraviolet radiation means and out of the housing through the air outlet. An air collector is provided between said extractor fan and said housing. A high negative voltage discharge/carbon fibre is located between the ultraviolet radiation tube and the air outlet to produce and increase the quantity of anions. The purifier may be provided with protection means to prevent extreme ultraviolet radiation being emitted from the housing to protect the eyes of the user.; The system may emit ultraviolet radiation at a wavelength of 253.7nm. The UV tube may be replaceable and the system may be placed in an air-conditioning device. Also claimed is an air purifier comprising inlets and outlets, a filter, an ultraviolet radioactive ray chamber for housing an ultraviolet radiation means, a carbon fibre for regenerating anions, the housing including a rectangular hole-site which fastens an external power line, the air purifier further comprising a switch to turn the power on or off.
  • Document DE 20 2004 008874 discloses an air purifier for a car or other vehicle for removing viruses, bacteria and other micro organisms from air. The air purifier comprising a housing containing at least one extractor fan, a carbon filter and an ultraviolet radiation tube. Air is taken into the device via an air intake trellis which functions to remove dust and other particles from the air, and exits the device via an exhaust frame trellis. The UV tube is easily removable and replaceable and the housing shields the users eyes from any radiation.
  • A drawback of the known device is that the field of its application is limited by the sanitary requirements to the air supply of the passenger railway transport, which air supply system is based on the fact that pure outside air enters it initially and usually there is a recirculation channel, which allows just disinfecting the recirculation air only.
    • DISCLOSURE OF THE INVENTION
  • The basis of the present invention is the task to create device for efficient disinfection in the ventilation and conditioning systems of such transport facilities where the inflow of the pure air is realized from a limited space - for example, for subway railroads located in a tunnel. The technical result achieved when implementing the invention consists in implementing the possibility of disinfecting the air in the subway railroads, as well as in reducing the disinfection process energy costs.
  • The said technical result is achieved by a device according to claim 1. On the top surface of the body is applied a sound-absorbing layer fixed on the body with the help of a grid, and on the bottom surface is applied a layer of the vibration-absorbing material. The edge of the body has a downward incline.
    • BRIEF DESCRIPTION OF DRAWINGS
  • In fig. 1 and 2 are shown the views of the subway railcar air disinfection device, top and side (in section), and in fig. 3 - bottom view. Body 1 of the device is made open from the top and has recess 2 formed by the bend of the body wall throughout its width. Bactericidal UV lamp 3, fixed on impact dampers 4, is positioned in the body recess, which prevents UV radiation escape to the passenger compartment and conditioner. Between the lamp and the body there is gap 5 for passing of the air flow under the lamp. One of the body edges 6 has partial incline 7 downwards for ensuring smooth expansion of the air channel. At the bottom, the lamp is covered with removable cover 8 fixed to the body so that air flow can pass between the body and the cover.
  • At the top, on the body is applied sound-absorbing layer 9, pressed to the body with protective grid 10. The layer is made from a UV radiation resistant material. At the bottom, on the body is applied layer 11 of vibration-damping material.
    • BEST MODE FOR CARRYING OUT THE INVENTION
  • The device operates as follows. The device is built into the air channel in the near-roof space of a subway railcar at the outlet of the conditioner in such a manner that the UV lamp is oriented perpendicularly to the flow of the treated air, and the edge of the body, having a downward incline, is distant along the flow from the inlet of the treated air. The UV lamp operation is controlled by a separate starting controller (SC), connected with it by cable. The external dimensions of the device are approximately 600x900x120 mm, SC - 270x105x62 mm.
  • As a source of bactericidal radiation is used a 170 W low pressure gas discharge amalgam lamp. The air flow passing through the air duct is subjected to the bactericidal radiation with a wavelength of 254 nm, and is disinfected. Due to the fact that the lamp is positioned in the recess, it is not overcooled by the passing air flow, the intensity of its radiation does not reduce and constantly ensures the UV radiation doze required for efficient disinfection. Moreover, such position of the lamp protects from UV radiation escape into the compartment and conditioner.
  • The gap between the lamp and the body, as well as between the cover and the body, allows the air flow to freely pass under the device, which ensures uniform distribution of the disinfected air in all zones of the passenger compartment.
  • Making the edge of the body with an incline allows smooth increasing of the channel section for air passing through the device, due to which the pressure loss and aerodynamic noise level are substantially reduced. At the bottom, the lamp is covered with a cover fixed on the body, which prevents UV radiation from passing into the passenger compartment and conditioner. The cover is installed in such a manner that there is a possibility for air passing between the body and the cover, which ensures uniform radiation and disinfection of the treated air flow both above and under the lamp.
  • Then, through the ventilation holes, the disinfected air goes to the passenger compartment, from which, during movement, it is moved to the tunnel and mixes with the ambient air. Then the fans supply air from the tunnel to the conditioner, creating partial recirculation of the air.
  • The presence of the vibration-absorbing layer (for example, vibration-damping fireproof materials VDF with aluminum foil coating) and fixing of the lamp on the impact dampers allows reducing vibration that occurs during movement of the train and the air along the channel and is transmitted to the device's elements down to the acceptable values, and the sound-absorbing material (Supersilika-M2) along with the structural elements (body edge downward incline) reduces the pressure loss and the aerodynamic noise level of the air flow, which increases the comfort of the device's operation. The device is conveniently positioned in the under-roof space of the railcar, while the removable cover ensures easy access to the lamp for maintenance and replacement of the lamp.
  • The present invention allows maintaining the epidemiologically safe for the passengers level of insemination of the air with microorganisms in accordance with the sanitary and hygienic norms of the subway with low energy costs for its disinfection.

Claims (4)

  1. Device for disinfection of air in the ventilation and conditioning system of a railcar,
    the device comprising a body (1) with impact dampers (4), a bactericidal UV lamp (3) fixed into the body (1) via the impact dampers (4), and a means of protection against UV radiation escape, wherein the body (1) is made open from the top with a recess (2), the bactericidal UV lamp (3) is positioned in the recess (2) so that between the body (1) and the lamp (3) there is a gap (5), and wherein a removable cover (8) is fixed at the bottom of the body (1) under the lamp so that air flow can pass between the cover (8) and the body (1), the cover (8) and the recess (2) being used as a means of protection against UV radiation escape, the device being characterized in that
    one of the body (1) edges has a downward incline (7) relative to the top of the body, for ensuring smooth expansion of the air channel,
    the edge of the body (1) having the downward incline (7) is distant along the flow from an inlet of the treated air, and
    the device is adapted to be built into an air channel in the near-roof space at an outlet of the ventilation and conditioning system of the railcar.
  2. Device according to claim 1 characterized in that at the top, on the body (1), is applied a layer (9) of sound-absorbing material resistant to UV radiation.
  3. Device according to claim 2 characterized in that on the sound-absorbing material resistant to UV radiation a grid (10) is fixed.
  4. Device according to claim 1 characterized in that at the bottom, on the body (1), is applied a layer (11) of vibration-absorbing material.
EP12743549.3A 2011-03-01 2012-02-22 Device for disinfecting the air in underground railway carriages Active EP2682320B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL12743549T PL2682320T3 (en) 2011-03-01 2012-02-22 Device for disinfecting the air in underground railway carriages

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
RU2011107620/15A RU2445122C1 (en) 2011-03-01 2011-03-01 Air disinfection device for underground railway carriages
PCT/RU2012/000125 WO2012118406A2 (en) 2011-03-01 2012-02-22 Device for disinfecting the air in underground railway carriages

Publications (2)

Publication Number Publication Date
EP2682320A2 EP2682320A2 (en) 2014-01-08
EP2682320B1 true EP2682320B1 (en) 2017-05-10

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Family Applications (1)

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EP12743549.3A Active EP2682320B1 (en) 2011-03-01 2012-02-22 Device for disinfecting the air in underground railway carriages

Country Status (5)

Country Link
EP (1) EP2682320B1 (en)
HU (1) HUE033745T2 (en)
PL (1) PL2682320T3 (en)
RU (1) RU2445122C1 (en)
WO (1) WO2012118406A2 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU169756U1 (en) * 2016-03-31 2017-03-31 Николай Джемалович Кикнадзе DEVICE FOR DISINFECTION OF AIR IN CARS OF ELECTRIC TRAINS
RU188578U1 (en) * 2018-10-26 2019-04-17 Общество с ограниченной ответственностью "ТВК" Installation for air disinfection
KR102290275B1 (en) * 2020-08-31 2021-08-23 오토렉스 주식회사 Indoor sterilizer for public transportation
RU207708U1 (en) * 2021-06-10 2021-11-12 Общество с ограниченной ответственностью "РЭМО-Технологии" Air disinfection attachment

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SU1713593A1 (en) * 1990-03-05 1992-02-23 Харьковский Институт Механизации И Электрификации Сельского Хозяйства Bactericidal radiation source suspended from the ceiling
GB2402337B (en) * 2003-06-06 2006-10-11 Se Kit Yuen Vehicular photoelectron air purifier
US6988371B2 (en) * 2004-05-25 2006-01-24 General Motors Corporation Automotive HVAC system and method of operating same utilizing evaporator freezing
CN100545524C (en) * 2004-06-28 2009-09-30 袁仕杰 The cylindrical nanometer photoelectronic air purifier
RU2278794C1 (en) 2004-11-09 2006-06-27 Государственное образовательное учреждение высшего профессионального образования "Самарская государственная академия путей сообщения" (СамГАПС) Railway passenger car air conditioning plant
RU78074U1 (en) * 2008-07-01 2008-11-20 Закрытое акционерное общество Научно-производственное объединение "Лаборатория импульсной техники" UNIT FOR DISINFECTION OF AIR BY UV RADIATION
RU2400254C2 (en) * 2008-10-06 2010-09-27 Артем Викторович Шестопалов Device for air disinfection

Also Published As

Publication number Publication date
WO2012118406A2 (en) 2012-09-07
EP2682320A2 (en) 2014-01-08
RU2445122C1 (en) 2012-03-20
WO2012118406A3 (en) 2013-02-28
PL2682320T3 (en) 2017-10-31
HUE033745T2 (en) 2017-12-28

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