CN111923948B - Novel air conditioning system of rail vehicle - Google Patents
Novel air conditioning system of rail vehicle Download PDFInfo
- Publication number
- CN111923948B CN111923948B CN202010813655.6A CN202010813655A CN111923948B CN 111923948 B CN111923948 B CN 111923948B CN 202010813655 A CN202010813655 A CN 202010813655A CN 111923948 B CN111923948 B CN 111923948B
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- CN
- China
- Prior art keywords
- air conditioning
- air
- conditioning unit
- pressure wave
- wave protection
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- 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.)
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- 238000004378 air conditioning Methods 0.000 title claims abstract description 67
- 239000002699 waste material Substances 0.000 claims abstract description 29
- 238000007789 sealing Methods 0.000 claims description 17
- 230000006835 compression Effects 0.000 claims description 2
- 238000007906 compression Methods 0.000 claims description 2
- 208000009205 Tinnitus Diseases 0.000 description 5
- 238000010586 diagram Methods 0.000 description 5
- 231100000886 tinnitus Toxicity 0.000 description 5
- 229910000831 Steel Inorganic materials 0.000 description 4
- 238000007599 discharging Methods 0.000 description 4
- 239000010959 steel Substances 0.000 description 4
- 238000009423 ventilation Methods 0.000 description 3
- 230000009977 dual effect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000011217 control strategy Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000008092 positive effect Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61D—BODY DETAILS OR KINDS OF RAILWAY VEHICLES
- B61D27/00—Heating, cooling, ventilating, or air-conditioning
- B61D27/0009—Means for controlling or equalizing air pressure shocks in trains, e.g. when passing or crossing in tunnels
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T30/00—Transportation of goods or passengers via railways, e.g. energy recovery or reducing air resistance
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Air-Conditioning For Vehicles (AREA)
Abstract
The invention relates to a novel air conditioning system for a railway vehicle, which comprises an air conditioning unit and a waste exhaust unit, wherein the air conditioning unit comprises a fresh air port, a vertical plate opening, an air supply port and an air return port, the fresh air port is connected with the outer side of the opening of the air conditioning unit to form a fresh air channel, and the inner side of the opening of the air conditioning unit is connected with an air return port of the air conditioning unit.
Description
Technical Field
The invention belongs to the technical field of air conditioning systems of railway vehicles, and particularly relates to a novel air conditioning system of a railway vehicle.
Background
At present, for rail trains and inter-city trains with the operation speed of more than 120km/h, such as motor trains, high-speed trains and the like, the whole carriage has air tightness requirements, and correspondingly, an air conditioning system is generally required to be provided with a pneumatic pressure wave protection system: the headstock is provided with an air inlet hole and a pressure sensor, and a pressure wave protection control device; a pneumatic pressure protection valve is arranged in the air conditioning unit; the waste discharge unit is arranged under the vehicle and is provided with a pneumatic pressure wave protection valve; an air pipe is arranged for providing compressed air for the pressure wave protection valve. For low-speed urban railway buses, the operation speed is less than 80km/h, and a pressure wave protection system is not generally arranged. Urban railway vehicles with the operation speed between 80km/h and 120km/h have the defects that the operation speed is relatively high, drivers and passengers can generate uncomfortable feelings such as tinnitus when the vehicles enter and exit a tunnel and the section of a line passing through a wind exhaust well is suddenly changed, if a pneumatic pressure wave protection system is added, the space of the vehicles is limited, the air pipes for supplying compressed air from the lower part of the vehicle to the top of the vehicle are difficult to collect on the vehicle head, and meanwhile, the control logic is relatively complex and the cost is increased.
Disclosure of Invention
The invention aims at designing and configuring an air conditioning system aiming at urban railway vehicles with higher sealing performance and operation speed required by the whole vehicle, the air conditioning system not only can provide cold air and hot air required by normal air conditioning functions for drivers and passengers, but also can increase a pressure wave protection function by an effective, economical and convenient scheme, and can completely isolate air circulation at the inner and outer air openings of the vehicle when the air circulation of the air openings is not allowed, prevent uncomfortable feelings such as tinnitus and the like caused by the drivers and passengers when the vehicles enter and exit a tunnel and break through line sections such as an exhaust shaft and the like, so as to meet the requirements of riding comfort of the driver's cab and the passengers.
In order to achieve the above object, the invention provides a novel air conditioning system for a railway vehicle, which comprises an air conditioning unit and a waste exhaust unit, wherein the air conditioning unit comprises a fresh air port, a riser opening, an air supply port and an air return port, the fresh air port is connected with the outer side of the riser opening of the air conditioning unit to form a fresh air channel, the inner side of the riser opening of the air conditioning unit is connected with an air conditioning unit return air port, the air conditioning unit further comprises an air conditioning unit electric pressure wave protection valve, the air conditioning unit electric pressure wave protection valve is arranged outside the riser opening of the air conditioning unit, the air conditioning unit electric pressure wave protection valve comprises a fixed baffle and a movable baffle, a gap between the fixed baffle and the fixed baffle of the riser opening of the air conditioning unit is a channel for fresh air to enter the air return air port area in the air conditioning unit, the waste exhaust unit is arranged on the roof, the waste exhaust unit electric pressure wave protection valve comprises a fixed baffle and a movable baffle, the gap between the fixed baffle and the movable baffle of the waste exhaust unit electric pressure wave protection valve is a channel outside the vehicle, and the air conditioning unit electric pressure wave protection valve is connected with a sealing strip or a pressure wave controller for controlling the speed of the running of the train or the running of the train. When the vehicle enters and exits the tunnel and breaks suddenly through the sections of the lines such as the exhaust shaft, the air conditioner controller controls the electric pressure wave protection valve to be closed, and the air channel outside the vehicle is completely cut off, so that uncomfortable feeling such as tinnitus and the like caused by pressure fluctuation in the passenger room of the urban railway vehicle is avoided.
The air conditioning unit supply-air outlet, return air inlet and exhaust unit air outlet and the wind gap between the roof all adopt the crisscross seal structure of U type to seal all around, the crisscross seal structure of U type is that upper and lower each sets up a U type groove, sets up the rubber seal strip in every U type inslot, and upper and lower U type groove staggered arrangement, and upper and lower U type groove respectively has the rubber seal strip at the opposite U type groove middle part of a vertical side extrusion to form dual compression seal, through dual seal structure, except prevent wind rain-proof effect, can also prevent having the air leakage of certain pressure.
The height of the rubber sealing strip in the U-shaped groove is lower than the edge of the U-shaped groove, the contact area between the single side of the U-shaped groove and the rubber sealing strip is small, and a better sealing effect is easy to obtain.
Compared with the prior art, the invention has the following positive effects:
The novel air conditioning system for the railway vehicle is mainly suitable for urban railway vehicles with higher speed, and the air conditioning unit and the waste discharging unit are internally provided with electric rather than pneumatic pressure wave protection valves, so that the pipeline arrangement for providing compressed air required by pneumatic control is reduced. Meanwhile, the pressure wave control adopts signals such as the running position and speed of the train instead of pressure signals inside and outside the train, an air inlet is not required to be formed in the head cover outside the train, and a pressure wave protection control device is arranged in the electric cabinet of the cab and used for giving instructions to the actuator of the protection valve, and the protection valve can be opened or closed. When the vehicle enters and exits the tunnel and breaks suddenly through the section of the line such as the exhaust shaft, the air conditioner controller controls the electric pressure wave protection valve to be closed, so that the generated air pressure flow is prevented from generating uncomfortable feeling such as tinnitus for drivers and passengers, and the riding comfort is improved.
Drawings
FIG. 1 is a schematic diagram of a head mounted air conditioning system configuration;
FIG. 2 is a schematic diagram of an intermediate vehicle air conditioning system configuration;
FIG. 3 is a schematic diagram of an intermediate vehicle (with pantograph) air conditioning system configuration;
FIG. 4 is a schematic diagram of an electric pressure wave protection valve configuration for an air conditioning unit
FIG. 5 is a front view of a centralized waste gate unit electric pressure wave protection valve configuration
FIG. 6 is a top view of a centralized waste gate unit electric pressure wave protection valve configuration
FIG. 7 is a schematic cross-sectional view of a staggered seal structure for a tuyere
FIG. 8 is a schematic diagram of a seven-motor pressure wave protection valve
Detailed Description
Referring to fig. 1 to 8, the specific embodiment of the invention provides a novel air conditioning system for a railway vehicle, in particular to a city railway vehicle with an operation speed of less than or equal to 120km/h and more than 80km/h, which is specifically and optimally designed on the basis of mature and common air conditioning system configuration, so that the air conditioning system has an effective, economical and convenient pressure wave protection function and avoids discomfort such as tinnitus and the like to drivers and passengers. The two air conditioning units 1 of each carriage are all in a lower air outlet and lower air return mode, the roof steel structure is provided with air inlets at positions corresponding to the air inlets 9 and the air inlets 10, the air inlets 7 are arranged on the vertical plate 6 near the air inlets 10 in the air conditioning units, the electric pressure wave protection valve 5 is arranged on the fixed baffle 23 of the electric pressure wave protection valve 5 and sealed at the position of the opening 7 of the air conditioning unit, when the electric pressure wave protection valve is in an open state, fresh air enters the air inlet region in the air conditioning unit through the air inlets 8 of the air conditioning unit, gaps between the fixed baffle and the movable baffle on the electric pressure wave protection valve and the air inlets 7 of the vertical plate, and is mixed with air in the passenger room sucked from the air inlets of the roof steel structure and the air inlets 10 of the air conditioning unit.
The centralized waste exhaust unit 2 is arranged on the roof and mainly comprises a shell, a fan, an electric pressure wave protection valve 11, electric components and the like, and is arranged on the roof, so that the work of rechecking positions on a bottom frame, selecting an exhaust channel, sealing an exhaust outlet on the bottom frame and the like is avoided. An air outlet 12 is formed in the lower portion of the centralized waste exhaust unit 2, an electric pressure wave protection valve 11 is arranged, a fixed baffle plate of the electric pressure wave protection valve 11 is installed and sealed on the centralized waste exhaust unit, an air outlet is formed in a position corresponding to the waste exhaust outlet 12 in a roof steel structure, when the electric pressure wave protection valve is in an open state, air in a passenger room enters the centralized waste exhaust unit 2 through gaps among the roof steel structure air outlet, the waste exhaust outlet 12, the fixed baffle plate and the movable baffle plate on the electric pressure wave protection valve 11 under the action of a fan, and is discharged to the atmosphere outside a vehicle under the action of the fan arranged in the centralized waste exhaust unit. Each vehicle is provided with two centralized waste discharging units, and the arrangement positions of the waste discharging units of different vehicle types can be adjusted. In order to improve the air tightness in the carriage, the air conditioning unit, the centralized waste discharging unit and the square air port 16 between the roof adopt U-shaped staggered sealing structures, rubber sealing strips 14 and 17 are stuck in U-shaped grooves 15 and 18, and one single vertical edge 20 of the U-shaped grooves on the air conditioning side and the roof 19 side respectively extrudes the corresponding rubber sealing strips so as to realize double sealing.
The pressure wave protection control strategy is that a Train Control and Management System (TCMS) transmits an opening and closing instruction to an air conditioner controller through a train network according to position and speed information of a tunnel portal, an exhaust well and the like which are input in advance, and then the air conditioner controller instructs an electric actuator 21 to drive a rotating shaft under a fixed frame of an electric pressure wave protection valve to rotate according to the corresponding instruction, so that a movable panel 22 on the electric pressure wave protection valve is driven to contact or be far away from a fixed baffle plate 23, and the electric pressure wave protection valve is closed or opened. When the electric pressure wave protection valve is closed, the air channel outside the vehicle is completely cut off, so that the pressure fluctuation in the passenger room of the urban railway vehicle is avoided. The condensed water of the air conditioning unit needs to be drained by a drain pipe 4, and the scattered drainage is forbidden.
In order to maintain positive pressure in the passenger room, under the working conditions of normal mode, emergency ventilation and the like, the waste exhaust unit and the air conditioning unit are controlled in a linkage mode, so that the air quantity sucked from a fresh air port of the air conditioning unit is ensured, and the equivalent air quantity is exhausted from an air outlet of the waste exhaust unit. Meanwhile, when the waste exhaust unit meets rated air volume (normal mode, emergency ventilation and the like), the opening degree of the air valve is required to be not opened to the maximum, so that the actual measured positive pressure of the whole automobile is too high, the opening degree of the air valve can be increased, larger air volume is exhausted, and the positive pressure in the passenger room is reduced. Other air supply devices, electric heaters and the like required by ventilation, heating and the like can be reasonably configured according to the air conditioning functions of actual requirements.
Claims (1)
1. The utility model provides a novel air conditioning system of rail vehicle, includes air conditioning unit and useless row unit, air conditioning unit includes fresh air inlet, riser opening, supply-air outlet, return air inlet, and fresh air inlet connects air conditioning unit opening outside and forms fresh air channel, and air conditioning unit return air inlet, its characterized in that are connected to air conditioning unit opening inboard: the air conditioning unit further comprises an air conditioning unit electric pressure wave protection valve, the air conditioning unit electric pressure wave protection valve is arranged outside an opening of the air conditioning unit assembly panel, the air conditioning unit electric pressure wave protection valve comprises a fixed baffle and a movable baffle, a gap between the movable baffle and the fixed baffle of the opening of the air conditioning unit assembly panel is a channel for fresh air to enter an inner return air inlet area of the air conditioning unit, the waste exhaust unit is arranged on a roof and comprises a waste exhaust unit electric pressure wave protection valve, the waste exhaust unit electric pressure wave protection valve is arranged on the upper side of an exhaust outlet of the waste exhaust unit and comprises the fixed baffle and the movable baffle, a gap between the movable baffle and the fixed baffle of the exhaust outlet is a channel for exhaust gas in the vehicle to be exhausted out of the vehicle, a sealing strip is arranged between the fixed baffle and the movable baffle, and the air conditioning unit electric pressure wave protection valve and the waste exhaust unit electric pressure wave protection valve are connected with an air conditioning controller for controlling the opening or closing of the waste exhaust unit electric pressure wave protection valve according to running position and speed information of a train;
The periphery of the air outlet between the air supply outlet, the air return outlet and the exhaust outlet of the waste exhaust unit of the air conditioning unit and the roof is sealed by adopting a U-shaped staggered sealing structure, wherein the U-shaped staggered sealing structure is characterized in that a U-shaped groove is respectively arranged up and down, rubber sealing strips are arranged in each U-shaped groove, the upper U-shaped groove and the lower U-shaped groove are staggered, and the upper U-shaped groove and the lower U-shaped groove are respectively provided with a vertical edge for extruding the rubber sealing strips in the middle parts of the opposite U-shaped grooves to form double compression sealing; the height of the rubber sealing strip in the U-shaped groove is lower than the edge of the U-shaped groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010813655.6A CN111923948B (en) | 2020-08-13 | 2020-08-13 | Novel air conditioning system of rail vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010813655.6A CN111923948B (en) | 2020-08-13 | 2020-08-13 | Novel air conditioning system of rail vehicle |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111923948A CN111923948A (en) | 2020-11-13 |
| CN111923948B true CN111923948B (en) | 2024-06-28 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010813655.6A Active CN111923948B (en) | 2020-08-13 | 2020-08-13 | Novel air conditioning system of rail vehicle |
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| CN (1) | CN111923948B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113002576A (en) * | 2021-01-25 | 2021-06-22 | 中车大连机车研究所有限公司 | Vehicle-mounted air conditioner for train |
| CN112793604A (en) * | 2021-02-04 | 2021-05-14 | 株洲中车时代电气股份有限公司 | Pressure wave protection valve control method, device and system of rail train and server |
| CN113183997B (en) * | 2021-06-09 | 2023-05-02 | 中车株洲电力机车有限公司 | Roof structure of railway vehicle |
| CN113562010B (en) * | 2021-07-27 | 2023-05-02 | 重庆中车长客轨道车辆有限公司 | Air tightness control system and method for double-flow vehicle |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN212423113U (en) * | 2020-08-13 | 2021-01-29 | 中车长春轨道客车股份有限公司 | Novel air conditioning system of rail vehicle |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102004008437A1 (en) * | 2003-02-20 | 2004-09-02 | Coldewey, Maik, Dipl.-Ing. | Process for pressure-protected ventilation of high-speed trains comprises taking in external air via a closing and throttle valve using a speed-adjustable fan and feeding the air back out again using a similar escaping air system |
| CN202413814U (en) * | 2012-01-09 | 2012-09-05 | 南车青岛四方机车车辆股份有限公司 | Central ventilation system for high-speed motor train unit |
| CN203485925U (en) * | 2013-07-30 | 2014-03-19 | 南车青岛四方机车车辆股份有限公司 | Overhead air-conditioning unit with active pressure protection function |
| CN204403390U (en) * | 2014-12-31 | 2015-06-17 | 石家庄国祥运输设备有限公司 | The pressure wave Protective valve of controlled aperture |
| CN106564513B (en) * | 2016-11-11 | 2018-11-27 | 中车青岛四方机车车辆股份有限公司 | A kind of rail vehicle pressure wave control device and control method |
| CN206297560U (en) * | 2016-12-28 | 2017-07-04 | 石家庄国祥运输设备有限公司 | A kind of empty rail Vehicular air-conditioning unit with useless row function |
| CN110293983B (en) * | 2019-05-13 | 2020-07-14 | 石家庄国祥运输设备有限公司 | Air conditioning unit for EMU (electric multiple unit) |
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2020
- 2020-08-13 CN CN202010813655.6A patent/CN111923948B/en active Active
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN212423113U (en) * | 2020-08-13 | 2021-01-29 | 中车长春轨道客车股份有限公司 | Novel air conditioning system of rail vehicle |
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| CN111923948A (en) | 2020-11-13 |
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