CN111674426A - Fireless loopback locomotive quick total air charging method - Google Patents
Fireless loopback locomotive quick total air charging method Download PDFInfo
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- CN111674426A CN111674426A CN202010566066.2A CN202010566066A CN111674426A CN 111674426 A CN111674426 A CN 111674426A CN 202010566066 A CN202010566066 A CN 202010566066A CN 111674426 A CN111674426 A CN 111674426A
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- locomotive
- air
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- charging
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61K—AUXILIARY EQUIPMENT SPECIALLY ADAPTED FOR RAILWAYS, NOT OTHERWISE PROVIDED FOR
- B61K11/00—Serving peculiar to locomotives, e.g. filling with, or emptying of, water, sand, or the like at the depots
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61H—BRAKES OR OTHER RETARDING DEVICES SPECIALLY ADAPTED FOR RAIL VEHICLES; ARRANGEMENT OR DISPOSITION THEREOF IN RAIL VEHICLES
- B61H11/00—Applications or arrangements of braking or retarding apparatus not otherwise provided for; Combinations of apparatus of different kinds or types
- B61H11/06—Applications or arrangements of braking or retarding apparatus not otherwise provided for; Combinations of apparatus of different kinds or types of hydrostatic, hydrodynamic, or aerodynamic brakes
Abstract
The invention relates to the technical field of locomotive air charging, and particularly discloses a rapid total air charging method for a fireless return locomotive. By adopting the scheme, the locomotive can be quickly charged with air, the charging time of the locomotive is greatly shortened, a large amount of invalid waiting time is saved, the return period is shortened, and the use efficiency of the shunting locomotive is improved.
Description
Technical Field
The invention relates to the technical field of locomotive air charging, in particular to a method for quickly charging total air for a fireless return locomotive.
Background
When the electric locomotive is newly manufactured or repaired and leaves a factory, the electric locomotive is returned according to a fireless special train according to the requirement of railway technical management regulations, and the problem that the leakage of the train pipe of a return section or a return factory maintenance locomotive exceeds the standard during fireless return is frequently encountered since the harmonious electric locomotives are repaired by C5 and C6, which is particularly shown in the technical scheme that when the locomotive is switched to a shunting locomotive at a return section or a marshalling station, a conductor performs a train pipe pressure maintaining test according to the requirement of a train brake test of a railway locomotive operation regulation rule, the leakage of the train pipe exceeds 1 minute 20kPa of the standard requirement, and the conductor does not transfer the train, thereby influencing the return of the locomotive.
According to the structural principle analysis of a Kenuoer CCBII system, the reason for causing the phenomenon is that according to the general pipeline system volume configuration of a normal electric locomotive, the volume of a train pipe is about =25L, the volume of a total air cylinder is 1650L, and the volume of a brake cylinder is 25L, after a return locomotive is linked without fire, the shunting locomotive is relieved in a non-air-supply mode, the shunting locomotive charges the total air of the linked non-fire return locomotive through the train pipe, finally the constant pressure of the train pipe is achieved, the total air cylinder pressure of the non-fire return locomotive is 250kPa, at the moment, the shunting locomotive applies brake, a handle reaches a brake area, the train pipe of the shunting locomotive is isolated, the pressure is reduced to the corresponding brake requirement, simultaneously, the brake cylinders of the shunting locomotive and the non-fire return locomotive are charged, the pressure air of the respective total air cylinders is consumed, the new balance is achieved, and in the balance process, the non-fire return isolation plug door is in a putting-in, the main air cylinder and the train pipe are communicated through an isolation cock, a pressure reducing valve and a one-way valve in the ERCP, and the air returned to the main air cylinder of the locomotive without fire is consumed, so that the air of the train pipe with higher pressure is required to be supplemented, but under the wind-supplementing mode, the air of the train pipe cannot be supplemented after being consumed, so that the leakage of the train pipe on a monitoring screen of a cab exceeds the standard, a crew member requests rescue, and the train is not normally dispatched.
At present, the whole road bureau generally informs a shunting locomotive to connect a train pipe at the train end of the shunting locomotive and a train pipe of a fireless loopback locomotive in order to solve the problem that the train pipe in the fireless loopback train leaks to exceed the standard. Opening all train pipe angle cock, keeping train pipe constant pressure of shunting locomotive 500 or 600kPa, placing automatic brake handle at operation position, charging air to the main air cylinder of fireless loopback locomotive through train pipe, the charging air path is shown in figure 1, DE represents fireless loopback input/cutting cock, and is placed at 'input' position in fireless loopback state, DER is fireless loopback pressure regulating valve, normal pressure range is 250kPa 270kPa, C2 is fireless loopback air charging shrinkage plug, size is 0.125 inch, approximately equals 3.2mm, CV is one-way check valve, preventing the total air from back streaming to train pipe, charging air according to the charging air path, fireless loopback locomotive (calculated according to 5 cars) is charged from total air 0kPa to 230kPa, normally needs 5min, but normally needs 3-4 hours from 230kPa to 250kPa, even is limited by the setting value of fireless loopback pressure regulating valve, the pressure of the train pipe may not be increased to 250kPa, even if the pressure of the train pipe is just 250kPa, a crew member performs a train pipe pressure maintaining test according to the train brake test requirement of the railway locomotive operation regulation rule, the train pipe is decompressed by 50kPa, the total air pressure is lower than 250kPa due to the fact that the total air cylinder fills air to a brake cylinder pipeline, the train pipe of the shunting locomotive returns the special total air cylinder to a fireless state again, and the leakage of the train pipe is 1 minute and 20kPa which exceeds the standard requirement. In the prior art, the normal leakage standard can be met only when the setting value of the fireless loopback pressure regulating valve is 270kPa, but a large amount of time is still needed for air inflation.
Disclosure of Invention
The invention aims to provide a quick air charging method for a fireless return locomotive, which can quickly charge air for the fireless return locomotive, reduce the return period and improve the use efficiency of a shunting locomotive.
In order to achieve the purpose, the invention adopts the following technical scheme:
a total air fast charging method for a fireless loopback locomotive is characterized in that an air charging mechanism charges air to a total air pipe of the fireless loopback locomotive through an air charging tool so as to realize fast air charging of the fireless loopback locomotive.
Further, the air inflation tool comprises a train hose connector, a main air hose connector and a hose, wherein the train hose connector is connected with the main air hose connector through the hose, the train hose connector forms an input end of the air inflation tool, and the main air hose connector forms an output end of the air inflation tool.
Further, the air charging tool further comprises a tool cutoff cock arranged between the train hose connector and the main air hose connector.
Furthermore, the air charging mechanism is a shunting locomotive, the input end of the air charging tool is connected with a train pipe of the shunting locomotive, and the output end of the air charging tool is connected with a main air pipe of the fireless loopback locomotive.
The method for filling the total air by using the shunting locomotive as the air filling mechanism comprises the following steps:
(1) connecting a main air hose connector of an air charging tool with a main air pipe at the upper end of the fireless loopback locomotive under the condition that a train pipe of the fireless loopback special train locomotive and a train pipe of a shunting locomotive are both closed;
(2) connecting the train hose connector of the tool with a train pipe of a shunting locomotive;
(3) opening a main air cylinder cutoff cock A10 of the fireless returning locomotive;
(4) the train pipe of the shunting locomotive is in constant pressure, and the automatic brake handle is in a release state at the operation position;
(5) respectively opening a main air cut-off cock of the fireless returning locomotive and a train pipe cut-off cock of a shunting locomotive, and charging air into a main air cylinder of the fireless returning locomotive by the shunting locomotive through a train pipe so as to reach a preset pressure;
(6) after the air charging is finished, closing a main air cylinder cut-off cock A10 of the fireless returning locomotive, a train pipe cut-off cock of a shunting locomotive and a main air cut-off cock of the fireless returning locomotive in sequence;
(7) opening a total air exhaust cock of the fireless returning locomotive, exhausting air outwards and reducing the pressure;
(8) and connecting the train pipe of the shunting locomotive with the train pipe of the fireless loopback locomotive, opening the train pipe folding angle cock, and performing train pipe pressure maintaining test.
Further, between the step (3) and the step (4), a step a is further included: communicating the main air pipes between two adjacent fireless return locomotives; the air charging tool further comprises a tool cutoff cock arranged between the train hose connector and the main air hose connector, and in the step (5), the tool cutoff cock needs to be opened.
Further, in the step (5), in the process of charging air, observing the total wind meter pressure of the cab of the fireless returning locomotive, and ensuring that the pressure is more than or equal to 350 kpa; in step (7) above, the total wind pressure is ensured to be discharged to 270 kpa.
As another scheme, the air charging mechanism is a vehicle air charging point arranged in the marshalling station, the input end of the air charging tool is connected with the vehicle air charging point, and the output end of the air charging tool is connected with a main air pipe of the fireless return locomotive.
The method for charging the total wind by taking the vehicle wind charging points arranged in the marshalling station as the wind charging mechanisms comprises the following steps:
(1) connecting a train hose connector of an air inflation tool with a vehicle air inflation point arranged in a marshalling station;
(2) connecting a main air hose connector of an air charging tool with a main air pipe at the vehicle end of a fireless loopback locomotive;
(3) opening a main air cylinder cutoff cock A10 of the fireless returning locomotive;
(4) respectively opening a main air cut-off cock of the fireless returning locomotive and a train pipe cut-off cock of a vehicle air charging point, and charging air into a main air cylinder of the fireless returning locomotive by an air charging tool from an air source of the vehicle air charging point so as to reach a preset pressure;
(5) after the air charging is finished, closing a total air cut-off cock A10 of the fireless loopback special train, a train pipe cut-off cock of a vehicle air charging point and a total air cut-off cock of the fireless loopback train in sequence;
(6) opening a total air exhaust cock of the fireless returning locomotive, exhausting air outwards and reducing the pressure;
(7) and (3) connecting the train pipe of the shunting locomotive with the train pipe of the fireless loopback locomotive after the shunting locomotive arrives, opening the train pipe angle cock, and performing train pipe pressure maintaining test.
Further, the method comprises the following steps: between step (3) and step (4), further comprising step a: communicating the main air pipes between two adjacent fireless return locomotives; and the air charging tool further comprises a tool intercepting cock arranged between the train hose connector and the main air hose connector, and in the step (4), the tool intercepting cock needs to be opened.
By using the scheme, the train pipe of the shunting locomotive or the vehicle air charging point arranged in the marshalling station directly and rapidly charges air for the main air cylinder of the fireless loopback locomotive through the air charging tool, the air charging time is shortened to be within 5 minutes from the original 3 to 4 hours, the air charging time of the fireless loopback locomotive is greatly shortened, a large amount of invalid waiting time is saved, the loopback period is shortened, and the use efficiency of the shunting locomotive is improved.
Drawings
Fig. 1 is a schematic view of an air charging path in the background art.
Fig. 2 is a schematic view of the air charging tool.
Detailed Description
A total air fast charging method for a fireless loopback locomotive is characterized in that an air charging mechanism charges air to a total air pipe of the fireless loopback locomotive through an air charging tool 1 so as to realize fast air charging of the fireless loopback locomotive.
As shown in fig. 2, the air charging fixture 1 includes a train hose connector 2, a main air hose connector 3, a hose 4, and a fixture cutoff cock 5 disposed between the train hose connector 2 and the main air hose connector 3, the train hose connector 2 is connected to the fixture cutoff cock 5 through the hose 4, the other end of the fixture cutoff cock 5 is connected to the main air hose connector 3 through the hose 4, the train hose connector 2 forms an input end of the air charging fixture 1, and the main air hose connector 3 forms an output end of the air charging fixture 1.
The train hose connector assembly and the hose connected with the train hose connector assembly form an assembly, the assembly and the hose connected with the assembly form an assembly, the performance of the train hose connector assembly is manufactured according to the relevant requirements of 'TB/T60-2014 brake hose connector for locomotive vehicles', the length of the train hose connector assembly is adjusted to be 1000mm, the performance of the assembly is manufactured according to the relevant requirements of 'TB/T3087-2016 total wind hose connector for locomotive vehicles', and the length of the assembly is adjusted to be 1200 mm; the technical standard of the tool cutoff cock is manufactured according to the related requirements of TB/T3003 plus 2013 cutoff cock for locomotives and vehicles, the tool cutoff cock is in matched connection with the conical external thread of the main air hose connector by adopting conical internal threads Rc1, and is in matched connection with the conical external thread of the train hose connector by adopting conical internal threads Rc 11/4.
The air charging mechanism may take different forms.
The first embodiment is as follows:
the air charging mechanism is a shunting locomotive, the input end of the air charging tool 1 is connected with a train pipe of the shunting locomotive, and the output end of the air charging tool 1 is connected with a main air pipe of the fireless loopback locomotive.
The method for filling the total air by using the shunting locomotive as the air filling mechanism comprises the following steps:
(1) connecting a total air hose connector 3 of an air charging tool 1 with a total air pipe at the upper end of the fireless loopback locomotive under the condition that a train pipe of the fireless loopback special train locomotive and a train pipe of a shunting locomotive are both closed;
(2) connecting the train hose connector 2 of the tool with a train pipe of a shunting locomotive;
(3) opening a main air cylinder cutoff cock A10 of the fireless returning locomotive;
because a plurality of fireless returning locomotives are arranged, after the step (3), the total air pipes between two adjacent fireless returning locomotives are communicated so as to improve the inflating and returning efficiency;
(4) the train pipe of the shunting locomotive is in constant pressure, and the automatic brake handle is in a release state at the operation position;
(5) respectively opening a total wind cut-off cock, a tooling cut-off cock 5 and a train pipe cut-off cock of a shunting locomotive, wherein the shunting locomotive charges a total air cylinder of the fireless loopback locomotive through a train pipe, and in the process of charging, the pressure of a driver cab total wind meter of the fireless loopback locomotive is observed to ensure that the preset pressure is reached, namely the pressure is more than or equal to 350kpa, and the process is about 5 minutes approximately;
(6) after the air charging is finished, closing a main air cylinder cut-off cock A10 of the fireless returning locomotive, a train pipe cut-off cock of a shunting locomotive and a main air cut-off cock of the fireless returning locomotive in sequence;
(7) and opening a total air drainage cock of the fireless return locomotive, exhausting air outwards and reducing the pressure, and ensuring that the total air pressure is discharged to 270 kpa.
(8) And (3) detaching the air filling tool 1, connecting the train pipe of the shunting locomotive with the train pipe of the fireless loopback locomotive, opening the train pipe folding angle cock, and performing train pipe pressure maintaining test.
Example two:
the air charging mechanism is a vehicle air charging point arranged in the marshalling station, the input end of the air charging tool 1 is connected with the vehicle air charging point, and the output end of the air charging tool 1 is connected with a main air pipe of the fireless loopback locomotive.
The method for charging the total wind by taking the vehicle wind charging points arranged in the marshalling station as the wind charging mechanisms comprises the following steps:
(1) connecting a train hose connector 2 of an air inflation tool 1 with a vehicle air inflation point arranged in a marshalling station;
(2) connecting a main air hose connector 3 of the air charging tool 1 with a main air pipe at the vehicle end of the fireless loopback locomotive;
(3) opening a main air cylinder cutoff cock A10 of the fireless returning locomotive;
because a plurality of fireless returning locomotives are arranged, after the step (3), the total air pipes between two adjacent fireless returning locomotives are communicated so as to improve the inflating and returning efficiency;
(4) respectively opening a total wind cut-off cock, a tooling cut-off cock 5 and a train pipe cut-off cock at a vehicle wind charging point of the fireless loopback locomotive, charging wind into a total air cylinder of the fireless loopback locomotive by a wind source at the vehicle wind charging point through a wind charging tooling 1, observing the total wind meter pressure of a cab of the fireless loopback locomotive in the wind charging process, and ensuring that the preset pressure is reached, namely the pressure is more than or equal to 350kpa, wherein the process approximately takes about 5 minutes;
(5) after the air charging is finished, closing a total air cut-off cock A10 of the fireless loopback special train, a train pipe cut-off cock of a vehicle air charging point and a total air cut-off cock of the fireless loopback train in sequence;
(6) opening a total air drainage cock of the fireless returning locomotive, exhausting air outwards and reducing the pressure, and ensuring that the total air pressure is discharged to 270 kpa;
(7) and (3) connecting the train pipe of the shunting locomotive with the train pipe of the fireless loopback locomotive after the shunting locomotive arrives, opening the train pipe angle cock, and performing train pipe pressure maintaining test.
By using the scheme, compared with the conventional method that the air is filled through the train pipe of the fireless returning locomotive, the air filling point arranged in the train pipe of the shunting locomotive or the marshalling station directly fills air into the main air cylinder of the fireless returning locomotive through the air filling tool 1, the air filling time is shortened to be within 5 minutes from 3 to 4 hours originally, the air filling time of the fireless returning locomotive is greatly shortened, a large amount of invalid waiting time is saved, the returning period is shortened, and the use efficiency of the shunting locomotive is improved.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications, combinations and variations may be made by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the scope of the claims of the present invention.
Claims (10)
1. A fireless returning locomotive rapid total air charging method is characterized in that: the air charging mechanism charges air to a main air pipe of the fireless return locomotive through the air charging tool so as to realize quick air charging of the fireless return locomotive.
2. The method for rapidly charging the total wind of the fireless return locomotive according to claim 1, wherein: the train hose connector is connected with the main air hose connector through a hose, the train hose connector forms an input end of the air charging tool, and the main air hose connector forms an output end of the air charging tool.
3. The method for rapidly charging the total wind of the fireless return locomotive according to claim 2, wherein: the air charging tool further comprises a tool cutoff cock arranged between the train hose connector and the main air hose connector.
4. The method for rapidly charging the total wind of the fireless return locomotive according to claim 2, wherein: the air charging mechanism is a shunting locomotive, the input end of the air charging tool is connected with a train pipe of the shunting locomotive, and the output end of the air charging tool is connected with a main air pipe of the fireless loopback locomotive.
5. The method for rapidly charging the total wind of the fireless return locomotive according to claim 4, wherein: the method comprises the following steps:
(1) connecting a main air hose connector of an air charging tool with a main air pipe at the upper end of the fireless loopback locomotive under the condition that a train pipe of the fireless loopback special train locomotive and a train pipe of a shunting locomotive are both closed;
(2) connecting the train hose connector of the tool with a train pipe of a shunting locomotive;
(3) opening a main air cylinder cutoff cock A10 of the fireless returning locomotive;
(4) the train pipe of the shunting locomotive is in constant pressure, and the automatic brake handle is in a release state at the operation position;
(5) respectively opening a main air cut-off cock of the fireless returning locomotive and a train pipe cut-off cock of a shunting locomotive, and charging air into a main air cylinder of the fireless returning locomotive by the shunting locomotive through a train pipe so as to reach a preset pressure;
(6) after the air charging is finished, closing a main air cylinder cut-off cock A10 of the fireless returning locomotive, a train pipe cut-off cock of a shunting locomotive and a main air cut-off cock of the fireless returning locomotive in sequence;
(7) opening a total air exhaust cock of the fireless returning locomotive, exhausting air outwards and reducing the pressure;
(8) and connecting the train pipe of the shunting locomotive with the train pipe of the fireless loopback locomotive, opening the train pipe folding angle cock, and performing train pipe pressure maintaining test.
6. The method for rapidly charging the total wind of the fireless return locomotive according to claim 5, wherein: between step (3) and step (4), further comprising step a: communicating the main air pipes between two adjacent fireless return locomotives;
the air charging tool further comprises a tool cutoff cock arranged between the train hose connector and the main air hose connector, and in the step (5), the tool cutoff cock needs to be opened.
7. The method for rapidly charging the total wind of the fireless return locomotive according to claim 5, wherein: in the step (5), in the process of charging air, observing the total wind meter pressure of the cab of the fireless returning locomotive, and ensuring that the pressure is more than or equal to 350 kpa;
in step (7) above, the total wind pressure is ensured to be discharged to 270 kpa.
8. The method for rapidly charging the total wind of the fireless return locomotive according to claim 2, wherein: the air charging mechanism is a vehicle air charging point arranged in the marshalling station, the input end of the air charging tool is connected with the vehicle air charging point, and the output end of the air charging tool is connected with a main air pipe of the fireless loopback locomotive.
9. The method of claim 8, wherein the method comprises the steps of: the method comprises the following steps:
(1) connecting a train hose connector of an air inflation tool with a vehicle air inflation point arranged in a marshalling station;
(2) connecting a main air hose connector of an air charging tool with a main air pipe at the vehicle end of a fireless loopback locomotive;
(3) opening a main air cylinder cutoff cock A10 of the fireless returning locomotive;
(4) respectively opening a main air cut-off cock of the fireless returning locomotive and a train pipe cut-off cock of a vehicle air charging point, and charging air into a main air cylinder of the fireless returning locomotive by an air charging tool from an air source of the vehicle air charging point so as to reach a preset pressure;
(5) after the air charging is finished, closing a total air cut-off cock A10 of the fireless loopback special train, a train pipe cut-off cock of a vehicle air charging point and a total air cut-off cock of the fireless loopback train in sequence;
(6) opening a total air exhaust cock of the fireless returning locomotive, exhausting air outwards and reducing the pressure;
(7) and (3) connecting the train pipe of the shunting locomotive with the train pipe of the fireless loopback locomotive after the shunting locomotive arrives, opening the train pipe angle cock, and performing train pipe pressure maintaining test.
10. The method of claim 9, wherein the method comprises the steps of: the method comprises the following steps: between step (3) and step (4), further comprising step a: communicating the main air pipes between two adjacent fireless return locomotives;
and the air charging tool further comprises a tool intercepting cock arranged between the train hose connector and the main air hose connector, and in the step (4), the tool intercepting cock needs to be opened.
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| CN202010566066.2A CN111674426B (en) | 2020-06-19 | 2020-06-19 | Fireless loopback locomotive quick total air charging method |
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| CN202010566066.2A CN111674426B (en) | 2020-06-19 | 2020-06-19 | Fireless loopback locomotive quick total air charging method |
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| CN2033793U (en) * | 1988-06-30 | 1989-03-08 | 水利电力部宝鸡车辆修造厂 | Compressed air charging and energy storage system for hopper cars |
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| CN102424058A (en) * | 2011-11-18 | 2012-04-25 | 南车株洲电力机车有限公司 | Train pipe low-pressure protection system and method applicable to locomotive braking system |
| CN104442898A (en) * | 2014-11-13 | 2015-03-25 | 南车株洲电力机车有限公司 | Double-pipe air supply device of rail locomotive |
| CN105197061A (en) * | 2015-10-19 | 2015-12-30 | 济南大学 | Electric pneumatic breaking type rapid air charging device for replenishing compressed air |
| CN105667537A (en) * | 2016-04-01 | 2016-06-15 | 青岛思锐科技有限公司 | Fireless returning device of locomotive |
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2020
- 2020-06-19 CN CN202010566066.2A patent/CN111674426B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2033793U (en) * | 1988-06-30 | 1989-03-08 | 水利电力部宝鸡车辆修造厂 | Compressed air charging and energy storage system for hopper cars |
| CN201665224U (en) * | 2010-08-20 | 2010-12-08 | 南车株洲电力机车有限公司 | Air-charging control structure for emergency braking |
| CN102424058A (en) * | 2011-11-18 | 2012-04-25 | 南车株洲电力机车有限公司 | Train pipe low-pressure protection system and method applicable to locomotive braking system |
| CN104442898A (en) * | 2014-11-13 | 2015-03-25 | 南车株洲电力机车有限公司 | Double-pipe air supply device of rail locomotive |
| CN105197061A (en) * | 2015-10-19 | 2015-12-30 | 济南大学 | Electric pneumatic breaking type rapid air charging device for replenishing compressed air |
| CN105667537A (en) * | 2016-04-01 | 2016-06-15 | 青岛思锐科技有限公司 | Fireless returning device of locomotive |
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