CN109649419B - Train-mounted anti-icing system and anti-icing method - Google Patents
Train-mounted anti-icing system and anti-icing method Download PDFInfo
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- CN109649419B CN109649419B CN201910098833.9A CN201910098833A CN109649419B CN 109649419 B CN109649419 B CN 109649419B CN 201910098833 A CN201910098833 A CN 201910098833A CN 109649419 B CN109649419 B CN 109649419B
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- 238000000034 method Methods 0.000 title claims abstract description 19
- 239000007788 liquid Substances 0.000 claims abstract description 250
- 230000004913 activation Effects 0.000 claims abstract description 37
- 239000007921 spray Substances 0.000 claims abstract description 32
- 238000005507 spraying Methods 0.000 claims description 22
- 239000012530 fluid Substances 0.000 claims description 21
- 238000000605 extraction Methods 0.000 claims description 12
- 238000009413 insulation Methods 0.000 claims description 8
- 238000010438 heat treatment Methods 0.000 claims description 6
- 230000008569 process Effects 0.000 claims description 5
- 230000007613 environmental effect Effects 0.000 claims description 4
- 238000007710 freezing Methods 0.000 claims description 4
- 230000008014 freezing Effects 0.000 claims description 4
- 230000000712 assembly Effects 0.000 claims description 3
- 238000000429 assembly Methods 0.000 claims description 3
- 239000000284 extract Substances 0.000 claims description 3
- 230000001502 supplementing effect Effects 0.000 claims description 3
- 230000007306 turnover Effects 0.000 abstract description 8
- 230000000694 effects Effects 0.000 abstract description 6
- 238000001035 drying Methods 0.000 abstract description 4
- 238000011010 flushing procedure Methods 0.000 abstract description 4
- 238000013461 design Methods 0.000 description 3
- 238000012544 monitoring process Methods 0.000 description 2
- 238000004321 preservation Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000003111 delayed effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61C—LOCOMOTIVES; MOTOR RAILCARS
- B61C17/00—Arrangement or disposition of parts; Details or accessories not otherwise provided for; Use of control gear and control systems
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- 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
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A30/00—Adapting or protecting infrastructure or their operation
- Y02A30/30—Adapting or protecting infrastructure or their operation in transportation, e.g. on roads, waterways or railways
Abstract
The invention provides a train-mounted anti-icing system and an anti-icing method, wherein the train-mounted anti-icing system comprises: the system comprises an electric and control system (1), a liquid storage module (2), a bracket module (3), a pump group module (4), a conveying pipeline module (5), a distributor (6), a spray head group (7), an activation instruction (8), an instrument and a sensor group (9). The advantages are that: aiming at high-speed trains and long-distance trains, the conditions of external environment temperature and snowfall and snow are combined, and anti-icing liquid is additionally sprayed at intervals or in certain mileage to the bottoms of the trains so as to realize continuous adhesion of the anti-icing liquid at the bottoms of the high-speed railway vehicles and the long-distance trains and achieve a continuous anti-icing effect. When the vehicle runs the current mileage and returns to the overhaul warehouse, a great amount of time and manpower are not needed for deicing and deicing operation, and only simple flushing and drying are needed, so that the vehicle turnover time is greatly shortened, and the vehicle turnover rate is improved.
Description
Technical Field
The invention belongs to the technical field of train-mounted anti-icing, and particularly relates to a train-mounted anti-icing system and an anti-icing method.
Background
In areas with snowfall and roadbed covered snow in winter, the train running at high speed can generate negative pressure, and the snowfall in the air and the snow on the roadbed are easily sucked into the bottom of the train and adsorbed at the bottom of the train, and the snow melts along with the heating of a transmission system. When the ambient temperature drops, the snow water condenses into ice, which adheres to the surfaces of the vehicle bottom bogie, the vehicle axle and the pipeline. As the train operation mileage increases, snow clusters or ice cubes on the bottom surface of the train become larger and larger, which affects the operation safety of the train.
In order to ensure the normal operation of the train, after the train returns to the overhaul warehouse, workers use the crowbars to knock ice cubes, and the bottoms of the vehicles are flushed by combining high-pressure hot water to remove accumulated ice and snow on the bottoms of the vehicles, and then the vehicles are naturally dried or dried by hot air. The traditional deicing operation mode belongs to post-deicing, consumes a large amount of manpower and energy, and is extremely low in operation efficiency and occupies a large amount of overhaul storage resources. In the knocking process, the damage to the bogie, the axle and the like at the bottom of the vehicle is unavoidable, and the loss of parts is indirectly accelerated.
In order to solve the problems, other anti-icing methods adopted at home and abroad at present mainly spray anti-icing liquid on the bottom of a train before the train starts, and the anti-icing liquid is adhered to the surface of the bottom of the train, so that the generation of ice is prevented or delayed. This approach has achieved some effect on short-haul vehicles. The anti-icing liquid is gradually consumed in the single running process of the vehicle without the operation of supplementing and spraying the anti-icing liquid, so that the anti-icing effect is greatly weakened. Therefore, how to ensure the continuous adhesion of the anti-icing fluid at the bottom of the high-speed railway vehicle with a single operation mileage of more than 800 km is a problem to be solved urgently.
Disclosure of Invention
Aiming at the defects existing in the prior art, the invention provides a train-mounted anti-icing system and an anti-icing method, which can effectively solve the problems.
The technical scheme adopted by the invention is as follows:
the invention provides a train-mounted anti-icing system, which comprises: the system comprises an electric and control system (1), a liquid storage module (2), a bracket module (3), a pump group module (4), a conveying pipeline module (5), a distributor (6), a spray head group (7), an activation instruction (8), an instrument and a sensor group (9);
the liquid storage module (2) is fixed on the train and comprises a liquid storage tank heat insulation layer (10), a liquid storage tank (11), a heater (12) and anti-icing liquid (13); the anti-icing fluid (13) is stored in the liquid storage tank (11), and the liquid storage tank heat-insulating layer (10) is arranged outside the liquid storage tank (11); the heater (12) for heating the anti-icing liquid (13) is arranged in the liquid storage tank (11);
the dispenser (6) comprises a dispenser insulation layer (29) and a dispenser body (30); the distributor body (30) is of a cavity structure, and a plurality of outlet connectors and an inlet connector are arranged on the distributor body (30); the distributor heat insulation layer (29) is arranged outside the distributor body (30);
-the sprayer group (7) comprises a plurality of sprayer assemblies (31) with outlet direction towards the anti-icing zone of the bottom of the train; the inlet of each spray head assembly (31) is connected to the outlet joint of the distributor (6) by a first pipeline (1A); a control valve (26) is arranged on the first pipeline (1A);
an inlet of the pump set module (4) is communicated with an outlet of the liquid storage module (2) through a second pipeline (2A); the outlet of the pump set module (4) is connected to an inlet joint of the distributor (6) through a third pipeline (3A) for conveying the anti-icing liquid (13) of the liquid storage module (2) into the cavity of the distributor (6) under pressure; wherein a three-way valve (21) is arranged on the third pipeline (3A);
wherein the first pipeline (1A), the second pipeline (2A) and the third pipeline (3A) form the conveying pipeline module (5);
the meter and sensor group (9) comprises: an anti-icing liquid temperature sensor (34) for detecting the temperature of the anti-icing liquid (13) in the liquid storage tank (11), a high liquid level sensor (35) and a low liquid level sensor (36) arranged in the liquid storage tank (11), a snow sensor (32) for detecting whether snow exists in an anti-icing area at the bottom of a train, an environmental temperature sensor (33) for detecting the environmental temperature, and a pressure sensor (37) for detecting the pipeline pressure of a third pipeline (3A);
the bracket module (3) comprises a liquid storage module bracket (14), a pump group, a pipeline bracket (15) and a distributor bracket, which are respectively used for supporting and fixing the liquid storage module (2), the pump group module (4) and the distributor (6);
the input end of the electric and control system (1) is respectively connected with the snow sensor (32), the ambient temperature sensor (33), the anti-icing liquid temperature sensor (34), the high liquid level sensor (35), the low liquid level sensor (36), the pressure sensor (37) and the activation instruction (8); the output end of the electric and control system (1) is respectively connected with the heater (12), the control valve (26) and the three-way valve (21).
Preferably, the first pipeline (1A) comprises a first hose (23), a branch pipeline (24), a branch pipeline heat tracing (25), a tail pipeline (27) and a tail pipeline heat tracing (28); wherein one end of the branch line (24) is connected to the outlet connector of the dispenser (6) by means of the first hose (23); the other end of the branch pipe (24) is connected to the corresponding spray head assembly (31) through the tail pipe (27); the branch pipeline (24) is provided with the branch pipeline heat tracing (25); the tail pipeline (27) is provided with the tail pipeline heat tracing (28); -mounting said control valve (26) on said branch line (24);
the second pipeline (2A) comprises an extraction pipeline (16), a main pipe heat tracing (17) and a second hose (18); wherein one end of the extraction pipeline (16) is communicated with an outlet of the liquid storage module (2); the other end of the extraction line (16) is connected to the inlet of the pump set module (4) by means of the second hose (18); the extraction pipeline (16) is provided with the main pipe heat tracing (17);
the third line (3A) comprises a third hose (19) and a pressure line (20); wherein one end of the pressure line (20) is connected to the outlet of the pump set module (4) by means of the third hose (19); the other end of the pressure line (20) is connected to an inlet connection of the distributor (6); the three-way valve (21) is arranged on the pressure pipeline (20); the 1 st interface and the 2 nd interface of the three-way valve (21) are respectively communicated with the pressure pipeline (20); the 3 rd interface of the three-way valve (21) is connected with compressed air (22).
The invention also provides an anti-icing method based on the train-mounted anti-icing system, which comprises the following steps:
step 1, installing a train-mounted anti-icing system, wherein a plurality of groups of spray head groups (7) are arranged, cover areas which are arranged at the bottom of a train and are easy to accumulate ice and snow, and enable the spray liquid direction of the spray head groups (7) to face the areas which are arranged at the bottom of the train and are easy to accumulate ice and snow;
step 2, in the running process of the train, the electric and control system (1) simultaneously executes the following operations:
operation 1: the electric and control system (1) detects whether the temperature of the anti-icing liquid (13) of the liquid storage module (2) is in a specific temperature range in real time through an anti-icing liquid temperature sensor (34), if the temperature is lower than the specific temperature range, the electric and control system (1) starts a heater (12) to heat the anti-icing liquid (13) until the temperature of the anti-icing liquid (13) is in the specific temperature range; thereby ensuring that the anti-icing fluid (13) is maintained within a specific temperature range;
operation 2: the electric and control system (1) monitors the liquid level of the anti-icing liquid (13) of the liquid storage module (2) in real time through a high liquid level sensor (35) and a low liquid level sensor (36); when the low liquid level sensor (36) detects a low liquid level signal along with the consumption of the anti-icing liquid (13), the anti-icing liquid (13) of the liquid storage module (2) is indicated to have too low liquid level, so that the electric and control system (1) sends out a reminding message for supplementing the anti-icing liquid (13); when the anti-icing liquid (13) is replenished, when the high liquid level sensor (35) detects a high liquid level signal, the anti-icing liquid (13) of the liquid storage module (2) is fully filled, and the electric and control system (1) sends out a warning message of the full anti-icing liquid replenishing; thereby maintaining the required anti-icing fluid (13) continuously existing in the liquid storage module (2);
operation 3: the electrical and control system (1) detects the pipeline pressure of the third pipeline (3A) in real time through the pressure sensor (37); if the preset pressure is detected, the pressure of the anti-icing fluid (13) in the third pipeline (3A) is normal; if the pressure is higher, the electric and control system (1) sends out a reminding message;
operation 4: the electric and control system (1) judges whether the spraying of the anti-icing liquid (13) is required to be started at the current moment according to whether the activation instruction (8) is obtained or not; if an activation instruction (8) is obtained, an anti-icing liquid (13) needs to be sprayed, and the electric and control system (1) controls the three-way valve (21) to enable the three-way valve (21) to open the third pipeline (3A); the electric and control system (1) starts a pump set module (4), the pump set module (4) extracts anti-icing liquid (13) from the liquid storage module (2), the anti-icing liquid is pressurized and sent to the distributor (6), the anti-icing liquid is distributed to each first pipeline (1A), and the anti-icing liquid is sprayed out from a spray head assembly (31) at the tail end of each first pipeline (1A) towards a region where ice and snow are easy to accumulate at the bottom of a train;
when the anti-icing liquid (13) is sprayed out of the area which is easy to accumulate ice and snow at the bottom of the train, the electric and control system (1) controls the opening and closing of the control valve (26) on each first pipeline (1A), so that the anti-icing liquid is sprayed at different positions at the bottom of the train;
and 3, when the spraying of the anti-icing liquid is nearly finished, the electric and control system (1) controls the opening position of the three-way valve (21) to enable the compressed air (22) to be communicated with the liquid outlet end of the third pipeline (3A), then, after passing through the third pipeline (3A), the compressed air (22) is sprayed into the first pipeline (1A) through the distributor (6) and then sprayed out of the spray head assembly (31) of the first pipeline (1A), on one hand, the compressed air (22) is utilized to blow out the anti-icing liquid (13) in the first pipeline (1A), and the blown-out anti-icing liquid (13) is sprayed at the bottom of a train, so that the effective utilization of the anti-icing liquid (13) is realized, the anti-icing liquid (13) is prevented from remaining in the first pipeline (1A) and freezing at low temperature, and the first pipeline (1A) is blocked.
Preferably, in step 2, the activation command (8) of the electrical and control system (1) is obtained by:
mode 1: the activation instruction (8) is a control instruction from an operator; the control instruction of an operator is converted into an activation instruction (8) for the electric and control system (1), so that the electric and control system (1) is activated, and a program for spraying the anti-icing liquid (13) is started;
mode 2: the electric and control system (1) detects whether snow exists in an anti-icing area at the bottom of a train in real time through the snow sensor (32), if so, the electric and control system (1) automatically generates an activation instruction (8), so that the electric and control system (1) is activated, and a program for spraying anti-icing liquid (13) is started;
mode 3: the electric and control system (1) presets corresponding activation conditions according to season or weather snowfall forecast, and when the activation conditions are met, an activation instruction (8) is automatically generated, so that the electric and control system (1) is activated, and a program for spraying the anti-icing fluid (13) is started.
The train-mounted anti-icing system and the anti-icing method provided by the invention have the following advantages:
aiming at high-speed trains and long-distance trains, the conditions of external environment temperature and snowfall and snow are combined, and anti-icing liquid is additionally sprayed at intervals or in certain mileage to the bottoms of the trains so as to realize continuous adhesion of the anti-icing liquid at the bottoms of the high-speed railway vehicles and the long-distance trains and achieve a continuous anti-icing effect. When the vehicle runs the current mileage and returns to the overhaul warehouse, a great amount of time and manpower are not needed for deicing and deicing operation, and only simple flushing and drying are needed, so that the vehicle turnover time is greatly shortened, and the vehicle turnover rate is improved.
Drawings
Fig. 1 is a schematic diagram of a train-mounted anti-icing system provided by the invention.
Detailed Description
In order to make the technical problems, technical schemes and beneficial effects solved by the invention more clear, the invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the invention.
The invention provides a train-mounted anti-icing system and an anti-icing method, which aim at a high-speed train and a long-distance train, and supplement and spray anti-icing liquid to the bottom of the train at intervals or with a certain mileage by combining the conditions of external environment temperature and snowfall, so as to realize continuous adhesion of the anti-icing liquid to the bottoms of the high-speed railway train and the long-distance train and achieve a continuous anti-icing effect. When the vehicle runs the current mileage and returns to the overhaul warehouse, a great amount of time and manpower are not needed for deicing and deicing operation, and only simple flushing and drying are needed, so that the vehicle turnover time is greatly shortened, and the vehicle turnover rate is improved.
Referring to fig. 1, a train-mounted anti-icing system comprising: the system comprises an electric and control system 1, a liquid storage module 2, a bracket module 3, a pump set module 4, a conveying pipeline module 5, a distributor 6, a spray head group 7, an activation instruction 8, an instrument and a sensor group 9;
the liquid storage module 2 is fixed on the train and comprises a liquid storage tank heat preservation layer 10, a liquid storage tank 11, a heater 12 and anti-icing liquid 13; the anti-icing liquid 13 is stored in the liquid storage tank 11, and the liquid storage tank heat preservation layer 10 is arranged outside the liquid storage tank 11; a heater 12 for heating the anti-icing liquid 13 is arranged inside the liquid storage tank 11; the heater 12 is used for maintaining the anti-icing liquid 13 in the liquid storage tank 11 within a specific temperature range, and the heat insulation layer 10 on the outer layer of the liquid storage tank 11 can effectively reduce heat loss. The liquid storage module 2 is provided with an anti-icing liquid temperature sensor 34, a high liquid level sensor 35 and a low liquid level sensor 36, which are used for monitoring the temperature and the liquid level of the anti-icing liquid 13, and the electric and control system 1 collects and processes the signals.
The dispenser 6 comprises a dispenser insulation 29 and a dispenser body 30; the distributor body 30 is of a cavity structure, and a plurality of outlet connectors and an inlet connector are arranged on the distributor body 30; the distributor body 30 is provided with a distributor heat-insulating layer 29 on the outside; the distributor 6 is used for uniformly distributing the anti-icing liquid 13 with pressure to the corresponding first pipelines 1A, so that the anti-icing liquid 13 in each first pipeline 1A and the nozzle group 7 is uniformly distributed.
The spray head group 7 includes a plurality of spray head assemblies 31 having outlet directions toward an anti-icing area of the bottom of the train; for atomizing the anti-icing fluid 13 so that it covers the bottom of the train and the areas of the bogie, axle, pipeline etc. The inlet of each spray head assembly 31 is connected to the outlet fitting of the distributor 6 by a first pipe 1A; a control valve 26 is arranged on the first pipeline 1A; the spray head groups 7 are provided with a plurality of groups and cover the area which is easy to accumulate ice and snow at the bottom of the train.
The inlet of the pump set module 4 is communicated with the outlet of the liquid storage module 2 through a second pipeline 2A; the outlet of the pump group module 4 is connected to the inlet joint of the distributor 6 through a third pipeline 3A for conveying the anti-icing liquid 13 of the liquid storage module 2 into the cavity of the distributor 6 under pressure; wherein a three-way valve 21 is arranged on the third pipeline 3A; the pump group module 4 is used for pumping the anti-icing liquid 13 out of the liquid storage tank 11, pressurizing and delivering the anti-icing liquid to the distributor 6, and finally spraying the anti-icing liquid from the spray head group 7 to the bottom of the train.
Wherein the first pipeline 1A, the second pipeline 2A and the third pipeline 3A form a conveying pipeline module 5;
the meter and sensor group 9 includes: an anti-icing liquid temperature sensor 34 for detecting the temperature of the anti-icing liquid 13 in the liquid storage tank 11, a high liquid level sensor 35 and a low liquid level sensor 36 arranged in the liquid storage tank 11, a snow sensor 32 for detecting whether snow exists in an anti-icing area at the bottom of a train, an ambient temperature sensor 33 for detecting the ambient temperature, a pressure sensor 37 for detecting the line pressure of the third line 3A, and if a predetermined pressure is detected, it means that the pressure of the anti-icing liquid 13 in the third line 3A is normal. The high liquid level sensor 35 and the low liquid level sensor 36 are used for monitoring the liquid level of the anti-icing liquid 13 in the liquid storage module 2, and as the anti-icing liquid 13 is consumed, when the liquid level is low, the low liquid level sensor 36 detects a low liquid level signal to remind that the anti-icing liquid 13 needs to be replenished; when the high liquid level sensor 35 detects a high liquid level signal when the anti-icing liquid is replenished, the anti-icing liquid 13 in the liquid storage module 2 is fully filled. The pressure sensor 37 is used to detect the pressure of the anti-icing fluid 13 in the pressure line 20, and if a predetermined pressure is detected, it indicates that the pressure of the anti-icing fluid 13 in the pressure line 20 is normal.
The bracket module 3 comprises a liquid storage module bracket 14, a pump group, a pipeline bracket 15 and a distributor bracket, which are respectively used for supporting and fixing the liquid storage module 2, the pump group module 4 and the distributor 6 so as to resist the influence of vibration;
the input end of the electric and control system 1 is respectively connected with a snow sensor 32, an ambient temperature sensor 33, an anti-icing liquid temperature sensor 34, a high liquid level sensor 35, a low liquid level sensor 36, a pressure sensor 37 and an activation instruction 8; the output end of the electric and control system 1 is respectively connected with the heater 12, the control valve 26 and the three-way valve 21. The electrical and control system 1 is used for collecting and processing signals of the instrument and sensor group 9 and executing an activation instruction 8.
The activation command 8 is an input command to the electric and control system 1, activates the electric and control system 1, and sprays the anti-icing liquid 13. The activation command 8 may be a signal of a snow sensor 32 automatically collected by the electric and control system 1, a control command from an operator, or a command preset in the system according to season or weather snowfall forecast.
In the invention, the first pipeline 1A comprises a first hose 23, a branch pipeline 24, a branch pipeline heat tracing 25, a tail pipeline 27 and a tail pipeline heat tracing 28; wherein one end of the branch line 24 is connected to the outlet fitting of the dispenser 6 by means of a first hose 23; the other end of branch line 24 is connected to a corresponding spray head assembly 31 via a tail line 27; branch pipe 24 is provided with branch pipe heat tracing 25; the tail pipe 27 is provided with a tail pipe heat tracing 28; a control valve 26 is arranged on the branch pipeline 24;
the second pipeline 2A comprises an extraction pipeline 16, a main pipe heat 17 and a second hose 18; wherein one end of the extraction pipeline 16 is communicated with the outlet of the liquid storage module 2; the other end of the extraction line 16 is connected to the inlet of the pump set module 4 by a second hose 18; the extraction pipeline 16 is provided with a main pipe heat tracing 17;
the third line 3A comprises a third hose 19 and a pressure line 20; wherein one end of the pressure line 20 is connected to the outlet of the pump set module 4 via a third hose 19; the other end of the pressure line 20 is connected to the inlet connection of the distributor 6; a three-way valve 21 is arranged on the pressure pipeline 20; the 1 st interface and the 2 nd interface of the three-way valve 21 are respectively communicated with the pressure pipeline 20; the 3 rd interface of the three-way valve 21 is connected with compressed air 22.
The second hose 18, the third hose 19 and the first hose 23 are flexibly connected, so that the influence of vibration is avoided, and the bogie can be adapted to rotation. The main pipe heat tracing 17, the branch pipe heat tracing 25 and the tail pipeline heat tracing 28 are used for heating and preserving heat of the pipeline, so that the anti-icing liquid 13 is kept at a certain working temperature.
The invention also provides an anti-icing method based on the train-mounted anti-icing system, which comprises the following steps:
step 1, installing a train-mounted anti-icing system, wherein the spray head group 7 is provided with a plurality of groups, covers an area which is arranged at the bottom of the train and is easy to accumulate ice and snow, and enables the spray liquid direction of the spray head group 7 to face the area which is arranged at the bottom of the train and is easy to accumulate ice and snow;
step 2, during the train operation, the electrical and control system 1 simultaneously performs the following operations:
operation 1: the electric and control system 1 detects whether the temperature of the anti-icing liquid 13 of the liquid storage module 2 is within a specific temperature range in real time through the anti-icing liquid temperature sensor 34, and if the temperature is lower than the specific temperature range, the electric and control system 1 starts the heater 12 to heat the anti-icing liquid 13 until the temperature of the anti-icing liquid 13 is within the specific temperature range; thereby ensuring that the anti-icing fluid 13 is maintained within a specific temperature range;
operation 2: the electric and control system 1 monitors the liquid level of the anti-icing liquid 13 of the liquid storage module 2 in real time through a high liquid level sensor 35 and a low liquid level sensor 36; as the anti-icing fluid 13 is consumed, when the low level sensor 36 detects a low level signal, it indicates that the level of the anti-icing fluid 13 of the fluid storage module 2 is too low, and therefore, the electrical and control system 1 sends out a reminding message for replenishing the anti-icing fluid 13; when the high liquid level sensor 35 detects a high liquid level signal when the anti-icing liquid 13 is replenished, which indicates that the anti-icing liquid 13 of the liquid storage module 2 is full, the electric and control system 1 sends out a warning message of full anti-icing liquid replenishing; thereby maintaining the required anti-icing liquid 13 continuously existing in the liquid storage module 2;
operation 3: the electrical and control system 1 detects the line pressure of the third line 3A in real time by means of the pressure sensor 37; if the predetermined pressure is detected, the pressure of the anti-icing fluid 13 in the third pipeline 3A is normal; if the pressure is high, the electric and control system 1 sends out a reminding message;
operation 4: the electric and control system 1 judges whether the spraying of the anti-icing liquid 13 is required to be started at the current moment according to whether the activation instruction 8 is obtained or not;
wherein the activation command 8 of the electrical and control system 1 is obtained by:
mode 1: the activation instruction 8 is a control instruction from an operator; the control instruction of an operator is converted into an activation instruction 8 for the electric and control system 1, so that the electric and control system 1 is activated, and a program for spraying the anti-icing liquid 13 is started;
mode 2: the electric and control system 1 detects whether snow exists in an anti-icing area at the bottom of the train in real time through the snow sensor 32, and if so, the electric and control system 1 automatically generates an activation instruction 8 so as to activate the electric and control system 1 and start a program for spraying the anti-icing liquid 13;
mode 3: the electric and control system 1 presets corresponding activation conditions according to season or weather snowfall forecast, and when the activation conditions are met, an activation instruction 8 is automatically generated, so that the electric and control system 1 is activated, and a procedure of spraying the anti-icing fluid 13 is started.
If the electric and control system 1 obtains the activation instruction 8, the spraying anti-icing liquid 13 needs to be started, and the electric and control system 1 controls the three-way valve 21 to enable the three-way valve 21 to open the third pipeline 3A; the electric and control system 1 starts the pump set module 4, the pump set module 4 extracts the anti-icing liquid 13 from the liquid storage module 2, and the anti-icing liquid is pressurized and sent to the distributor 6, and is distributed to each first pipeline 1A, and is sprayed out from the spray head assembly 31 at the tail end of the first pipeline 1A towards the area where ice and snow are easy to accumulate at the bottom of the train;
when the anti-icing liquid 13 is sprayed out of the area which is easy to accumulate ice and snow at the bottom of the train, the electric and control system 1 controls the opening and closing of the control valve 26 on each first pipeline 1A, so that the anti-icing liquid is sprayed at different positions at the bottom of the train;
and 3, when the spraying of the anti-icing liquid is nearly finished, the electric and control system 1 controls the opening position of the three-way valve 21 to enable the compressed air 22 to be communicated with the liquid outlet end of the third pipeline 3A, then the compressed air 22 passes through the third pipeline 3A and is sprayed into the first pipeline 1A through the distributor 6 and then is sprayed out of the spray head assembly 31 of the first pipeline 1A, on one hand, the compressed air 22 is utilized to blow out the anti-icing liquid 13 in the first pipeline 1A, and the blown-out anti-icing liquid 13 is sprayed at the bottom of a train, so that the effective utilization of the anti-icing liquid 13 is realized, and the anti-icing liquid 13 is prevented from remaining in the first pipeline 1A and freezing at low temperature, thereby blocking the first pipeline 1A.
Example 1:
after the electric and control system 1 is started, when the snow sensor 32 detects snow, whether the anti-icing liquid 13 needs to be sprayed or not is judged, and if the result is true, the system is activated to perform spraying operation. The control pump unit module 4 pumps the anti-icing liquid 13, sends the anti-icing liquid to the distributor 6 under pressure, distributes the anti-icing liquid to the branch pipeline 24 and ejects the anti-icing liquid from the nozzle group 7. The electric and control system 1 controls the opening and closing and opening of the control valves 26 on different branch pipelines 24 to realize the spraying of different positions at the bottom of the train. When the spraying is finished, the electric appliance and control system 1 controls the opening position of the three-way valve 21, and the compressed air 22 is utilized to blow out the anti-icing liquid 13 in the branch pipeline 24. The anti-icing liquid 13 can be effectively utilized, and the anti-icing liquid 13 can be prevented from remaining in the branch pipeline 24 and freezing at low temperature. After the train runs for a certain mileage, the electric and control system 1 repeats the above steps to perform the spraying operation.
The train-mounted anti-icing system and the anti-icing method provided by the invention have the following advantages:
(1) The train-mounted anti-icing system is a vehicle-mounted anti-icing system and adopts a modularized design. According to different space positions, the modules can be combined at will so as to adapt to a narrow installation space. The system adopts a flexible design, and is suitable for working conditions such as high-speed running, emergency braking and the like of railway vehicles. The system adopts pipeline heat tracing and liquid storage module heating design, and is suitable for severe cold weather. Aiming at the requirements of safety and stability of the train, the system has good safety protection, such as liquid level alarm, temperature alarm, pipeline pressure alarm and the like.
(2) Aiming at high-speed trains and long-distance trains, the conditions of external environment temperature and snowfall and snow are combined, and anti-icing liquid is additionally sprayed at intervals or in certain mileage to the bottoms of the trains so as to realize continuous adhesion of the anti-icing liquid at the bottoms of the high-speed railway vehicles and the long-distance trains and achieve a continuous anti-icing effect. When the vehicle runs the current mileage and returns to the overhaul warehouse, a great amount of time and manpower are not needed for deicing and deicing operation, and only simple flushing and drying are needed, so that the vehicle turnover time is greatly shortened, and the vehicle turnover rate is improved.
The foregoing is merely a preferred embodiment of the present invention and it should be noted that modifications and adaptations to those skilled in the art may be made without departing from the principles of the present invention, which is also intended to be covered by the present invention.
Claims (4)
1. A train-mounted anti-icing system, the train-mounted anti-icing system comprising: the system comprises an electric and control system (1), a liquid storage module (2), a bracket module (3), a pump group module (4), a conveying pipeline module (5), a distributor (6), a spray head group (7), an activation instruction (8), an instrument and a sensor group (9);
the liquid storage module (2) is fixed on the train and comprises a liquid storage tank heat insulation layer (10), a liquid storage tank (11), a heater (12) and anti-icing liquid (13); the anti-icing fluid (13) is stored in the liquid storage tank (11), and the liquid storage tank heat-insulating layer (10) is arranged outside the liquid storage tank (11); the heater (12) for heating the anti-icing liquid (13) is arranged in the liquid storage tank (11);
the dispenser (6) comprises a dispenser insulation layer (29) and a dispenser body (30); the distributor body (30) is of a cavity structure, and a plurality of outlet connectors and an inlet connector are arranged on the distributor body (30); the distributor heat insulation layer (29) is arranged outside the distributor body (30);
-the sprayer group (7) comprises a plurality of sprayer assemblies (31) with outlet direction towards the anti-icing zone of the bottom of the train; the inlet of each spray head assembly (31) is connected to the outlet joint of the distributor (6) by a first pipeline (1A); a control valve (26) is arranged on the first pipeline (1A);
an inlet of the pump set module (4) is communicated with an outlet of the liquid storage module (2) through a second pipeline (2A); the outlet of the pump set module (4) is connected to an inlet joint of the distributor (6) through a third pipeline (3A) for conveying the anti-icing liquid (13) of the liquid storage module (2) into the cavity of the distributor (6) under pressure; wherein a three-way valve (21) is arranged on the third pipeline (3A);
wherein the first pipeline (1A), the second pipeline (2A) and the third pipeline (3A) form the conveying pipeline module (5);
the meter and sensor group (9) comprises: an anti-icing liquid temperature sensor (34) for detecting the temperature of the anti-icing liquid (13) in the liquid storage tank (11), a high liquid level sensor (35) and a low liquid level sensor (36) arranged in the liquid storage tank (11), a snow sensor (32) for detecting whether snow exists in an anti-icing area at the bottom of a train, an environmental temperature sensor (33) for detecting the environmental temperature, and a pressure sensor (37) for detecting the pipeline pressure of a third pipeline (3A);
the bracket module (3) comprises a liquid storage module bracket (14), a pump group, a pipeline bracket (15) and a distributor bracket, which are respectively used for supporting and fixing the liquid storage module (2), the pump group module (4) and the distributor (6);
the input end of the electric and control system (1) is respectively connected with the snow sensor (32), the ambient temperature sensor (33), the anti-icing liquid temperature sensor (34), the high liquid level sensor (35), the low liquid level sensor (36), the pressure sensor (37) and the activation instruction (8); the output end of the electric and control system (1) is respectively connected with the heater (12), the control valve (26) and the three-way valve (21).
2. Train on-board anti-icing system according to claim 1, characterized in that the first pipeline (1A) comprises a first hose (23), a branch pipeline (24), a branch pipeline heat tracing (25), a tail pipeline (27) and a tail pipeline heat tracing (28); wherein one end of the branch line (24) is connected to the outlet connector of the dispenser (6) by means of the first hose (23); the other end of the branch pipe (24) is connected to the corresponding spray head assembly (31) through the tail pipe (27); the branch pipeline (24) is provided with the branch pipeline heat tracing (25); the tail pipeline (27) is provided with the tail pipeline heat tracing (28); -mounting said control valve (26) on said branch line (24);
the second pipeline (2A) comprises an extraction pipeline (16), a main pipe heat tracing (17) and a second hose (18); wherein one end of the extraction pipeline (16) is communicated with an outlet of the liquid storage module (2); the other end of the extraction line (16) is connected to the inlet of the pump set module (4) by means of the second hose (18); the extraction pipeline (16) is provided with the main pipe heat tracing (17);
the third line (3A) comprises a third hose (19) and a pressure line (20); wherein one end of the pressure line (20) is connected to the outlet of the pump set module (4) by means of the third hose (19); the other end of the pressure line (20) is connected to an inlet connection of the distributor (6); the three-way valve (21) is arranged on the pressure pipeline (20); the 1 st interface and the 2 nd interface of the three-way valve (21) are respectively communicated with the pressure pipeline (20); the 3 rd interface of the three-way valve (21) is connected with compressed air (22).
3. An anti-icing method based on the on-board anti-icing system of a train according to any of claims 1-2, characterized in that it comprises the following steps:
step 1, installing a train-mounted anti-icing system, wherein a plurality of groups of spray head groups (7) are arranged, cover areas which are arranged at the bottom of a train and are easy to accumulate ice and snow, and enable the spray liquid direction of the spray head groups (7) to face the areas which are arranged at the bottom of the train and are easy to accumulate ice and snow;
step 2, in the running process of the train, the electric and control system (1) simultaneously executes the following operations:
operation 1: the electric and control system (1) detects whether the temperature of the anti-icing liquid (13) of the liquid storage module (2) is in a specific temperature range in real time through an anti-icing liquid temperature sensor (34), if the temperature is lower than the specific temperature range, the electric and control system (1) starts a heater (12) to heat the anti-icing liquid (13) until the temperature of the anti-icing liquid (13) is in the specific temperature range; thereby ensuring that the anti-icing fluid (13) is maintained within a specific temperature range;
operation 2: the electric and control system (1) monitors the liquid level of the anti-icing liquid (13) of the liquid storage module (2) in real time through a high liquid level sensor (35) and a low liquid level sensor (36); when the low liquid level sensor (36) detects a low liquid level signal along with the consumption of the anti-icing liquid (13), the anti-icing liquid (13) of the liquid storage module (2) is indicated to have too low liquid level, so that the electric and control system (1) sends out a reminding message for supplementing the anti-icing liquid (13); when the anti-icing liquid (13) is replenished, when the high liquid level sensor (35) detects a high liquid level signal, the anti-icing liquid (13) of the liquid storage module (2) is fully filled, and the electric and control system (1) sends out a warning message of the full anti-icing liquid replenishing; thereby maintaining the required anti-icing fluid (13) continuously existing in the liquid storage module (2);
operation 3: the electrical and control system (1) detects the pipeline pressure of the third pipeline (3A) in real time through the pressure sensor (37); if the preset pressure is detected, the pressure of the anti-icing fluid (13) in the third pipeline (3A) is normal; if the pressure is higher, the electric and control system (1) sends out a reminding message;
operation 4: the electric and control system (1) judges whether the spraying of the anti-icing liquid (13) is required to be started at the current moment according to whether the activation instruction (8) is obtained or not; if an activation instruction (8) is obtained, an anti-icing liquid (13) needs to be sprayed, and the electric and control system (1) controls the three-way valve (21) to enable the three-way valve (21) to open the third pipeline (3A); the electric and control system (1) starts a pump set module (4), the pump set module (4) extracts anti-icing liquid (13) from the liquid storage module (2), the anti-icing liquid is pressurized and sent to the distributor (6), the anti-icing liquid is distributed to each first pipeline (1A), and the anti-icing liquid is sprayed out from a spray head assembly (31) at the tail end of each first pipeline (1A) towards a region where ice and snow are easy to accumulate at the bottom of a train;
when the anti-icing liquid (13) is sprayed out of the area which is easy to accumulate ice and snow at the bottom of the train, the electric and control system (1) controls the opening and closing of the control valve (26) on each first pipeline (1A), so that the anti-icing liquid is sprayed at different positions at the bottom of the train;
and 3, when the spraying of the anti-icing liquid is nearly finished, the electric and control system (1) controls the opening position of the three-way valve (21) to enable the compressed air (22) to be communicated with the liquid outlet end of the third pipeline (3A), then, after passing through the third pipeline (3A), the compressed air (22) is sprayed into the first pipeline (1A) through the distributor (6) and then sprayed out of the spray head assembly (31) of the first pipeline (1A), on one hand, the compressed air (22) is utilized to blow out the anti-icing liquid (13) in the first pipeline (1A), and the blown-out anti-icing liquid (13) is sprayed at the bottom of a train, so that the effective utilization of the anti-icing liquid (13) is realized, the anti-icing liquid (13) is prevented from remaining in the first pipeline (1A) and freezing at low temperature, and the first pipeline (1A) is blocked.
4. A method of anti-icing according to claim 3, characterized in that in step 2, the activation command (8) of the electrical and control system (1) is obtained by:
mode 1: the activation instruction (8) is a control instruction from an operator; the control instruction of an operator is converted into an activation instruction (8) for the electric and control system (1), so that the electric and control system (1) is activated, and a program for spraying the anti-icing liquid (13) is started;
mode 2: the electric and control system (1) detects whether snow exists in an anti-icing area at the bottom of a train in real time through the snow sensor (32), if so, the electric and control system (1) automatically generates an activation instruction (8), so that the electric and control system (1) is activated, and a program for spraying anti-icing liquid (13) is started;
mode 3: the electric and control system (1) presets corresponding activation conditions according to season or weather snowfall forecast, and when the activation conditions are met, an activation instruction (8) is automatically generated, so that the electric and control system (1) is activated, and a program for spraying the anti-icing fluid (13) is started.
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