CN115107727A - Train pipe local pressure reduction structure and pressure reduction method thereof - Google Patents
Train pipe local pressure reduction structure and pressure reduction method thereof Download PDFInfo
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- CN115107727A CN115107727A CN202210687598.0A CN202210687598A CN115107727A CN 115107727 A CN115107727 A CN 115107727A CN 202210687598 A CN202210687598 A CN 202210687598A CN 115107727 A CN115107727 A CN 115107727A
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- train pipe
- local
- reduction chamber
- pressure
- valve
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
- B60T17/00—Component parts, details, or accessories of power brake systems not covered by groups B60T8/00, B60T13/00 or B60T15/00, or presenting other characteristic features
- B60T17/04—Arrangements of piping, valves in the piping, e.g. cut-off valves, couplings or air hoses
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
- B60T15/00—Construction arrangement, or operation of valves incorporated in power brake systems and not covered by groups B60T11/00 or B60T13/00
- B60T15/02—Application and release valves
- B60T15/18—Triple or other relay valves which allow step-wise application or release and which are actuated by brake-pipe pressure variation to connect brake cylinders or equivalent to compressed air or vacuum source or atmosphere
- B60T15/184—Railway control or brake valves
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- Engineering & Computer Science (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Control Of Fluid Pressure (AREA)
Abstract
The invention relates to the technical field of train pipe local pressure reduction, and aims to solve the problems that in the prior art, a distribution valve has poor pressure reduction effect, the speed of pressure air in a train pipe entering a pressure reduction chamber is not easy to control, and the pressure reduction quantity of the pressure air in the train pipe entering the pressure reduction chamber is not easy to control; the distribution valve is internally provided with a train pipe and a vent valve, one end of the train pipe is communicated with the vent valve, one side of the vent valve is provided with a local reduction chamber, the local reduction chamber is positioned in the distribution valve, a vent hole is arranged between one end of the local reduction chamber and the vent valve, and the local reduction chamber is communicated with the vent valve through the vent hole. The invention has the advantages that the pressure reducing effect is good, the speed of the pressure air in the train pipe entering the pressure reducing chamber is easy to control, and the pressure reducing amount of the pressure air in the train pipe entering the pressure reducing chamber is easy to control.
Description
Technical Field
The invention relates to the technical field of train pipe local pressure reduction, in particular to a train pipe local pressure reduction structure and a pressure reduction method thereof.
Background
In the initial braking stage of the original distributing valve, when the train pipe is locally decompressed, the pressure air of the train pipe is directly discharged to the atmosphere from the train pipe so as to enable the train pipe to achieve the purpose of fast decompression, but the distributing valve has poor decompression effect, the local deceleration rate of the train pipe is not easy to control, and the local decrement of the train pipe is not easy to control.
Disclosure of Invention
The invention aims to provide a train pipe local pressure reducing structure and a pressure reducing method thereof, and aims to solve the problems that in the prior art, a distributing valve is poor in pressure reducing effect, the speed of pressure air in a train pipe entering a local pressure reducing chamber is not easy to control, and the pressure reducing amount of the pressure air in the train pipe entering the local pressure reducing chamber is not easy to control.
The embodiment of the invention is realized by the following steps:
the embodiment of the invention provides a train pipe local pressure reduction structure, which comprises a distribution valve;
the distribution valve has a train pipe and a vent valve inside, one end of the train pipe is communicated with the vent valve, one side of the vent valve is provided with a local reduction chamber, the local reduction chamber is positioned in the distribution valve, a vent hole is arranged between one end of the local reduction chamber and the vent valve, and the local reduction chamber is communicated with the vent valve through the vent hole.
In the train pipe local pressure reducing structure disclosed in the embodiment, the distribution valve is provided with the local pressure reducing chamber, the high-pressure gas inlet of the local pressure reducing chamber is provided with the vent hole capable of controlling the speed of the pressure air in the train pipe entering the local pressure reducing chamber, the vent holes with different inner diameters are adopted, so that the speed of the pressure air in the train pipe entering the local pressure reducing chamber can be easily controlled, the volume of the local pressure reducing chamber is changed, the pressure reducing amount of the pressure air in the train pipe entering the local pressure reducing chamber can be easily controlled, and the train pipe local pressure reducing structure has the beneficial effects that the pressure reducing effect is good, the speed of the pressure air in the train pipe entering the local pressure reducing chamber is easily controlled, and the pressure reducing amount of the pressure air in the train pipe entering the local pressure reducing chamber is easily controlled.
Optionally: and the control air cylinder is arranged at the lower part of the train pipe, is positioned in the distribution valve and is parallel to the train pipe.
According to the arrangement, the control air cylinder is arranged, when the pressure of the upper train pipe is exhausted and reduced, the pressure air of the auxiliary air cylinder enters the brake cylinder through the mechanism action, and the upward pressure action of the control air cylinder is equal to the downward pressure action of the train pipe and the downward pressure action of the brake cylinder.
Optionally: the volume of the local reducing chamber can be set to be different in size, and the larger the volume of the local reducing chamber is, the more the pressure gas in the train pipe enters the local reducing chamber, and the more the pressure reduction amount of the train pipe enters the local reducing chamber;
the smaller the volume of the local reduction chamber is, the less the pressure gas in the train pipe enters the local reduction chamber, and the less the decompression amount of the train pipe enters the local reduction chamber.
In this way, the volume of the local reduction chamber is changed to control the decompression amount of the high-pressure gas in the train pipe entering the local reduction chamber, so that the decompression amount of the train pipe can be effectively controlled.
Optionally: the vent holes may be formed as different internal diameter holes, the larger the vent holes, the greater the rate of the pressurized gas in the train pipe entering the local reduction chamber, and the smaller the vent holes, the less the rate of the pressurized gas in the train pipe entering the local reduction chamber.
By means of the arrangement, the speed of the pressure air in the train pipe entering the local reduction chamber is changed by changing the hole diameter of the vent hole, so that the speed of the pressure air in the train pipe entering the local reduction chamber can be easily controlled.
Optionally: and the other side of the vent valve is provided with an exhaust channel, the exhaust channel is positioned on the distribution valve, one end of the exhaust channel penetrates through the distribution valve, and the other end of the exhaust channel is communicated with the vent valve.
In this arrangement, during the inflation of the distribution valve, the pressurized air in the local decompression chamber is discharged to the atmosphere through the vent valve and the exhaust passage, thereby facilitating the preparation for the next decompression.
Optionally: the axial direction of the train pipe is perpendicular to the axial direction of the vent valve.
So set up, make above-mentioned distributing valve rational in infrastructure like this, the outward appearance is clean and tidy, is favorable to the setting of above-mentioned office subtracting the room.
Optionally: the bottom of the vent valve is provided with a piston, the top end of the piston is abutted against the telescopic end of the vent valve, the pressure gas in the train pipe drives the telescopic end of the vent valve to reciprocate, and the piston synchronously reciprocates along with the telescopic end of the vent valve.
So set up, be favorable to making above-mentioned train pipe reach the purpose of quick decompression.
In one implementation of this embodiment: the pressure reducing method of local train pipe pressure reducing structure includes introducing the pressure gas inside the train pipe into the local reducing chamber of the distributing valve via the ventilating valve to reduce the pressure inside the train pipe in the initial braking period, controlling the speed of the pressure gas inside the train pipe entering the local reducing chamber via the ventilating holes in different sizes, and controlling the pressure reducing amount of the pressure gas inside the train pipe entering the local reducing chamber via altering the volume of the local reducing chamber.
In summary, the train pipe local pressure reducing structure and the pressure reducing method thereof disclosed by the invention have the beneficial effects that the pressure reducing effect of the distributing valve is good, the speed of the pressure air in the train pipe entering the local pressure reducing chamber is easy to control, and the pressure reducing amount of the pressure air in the train pipe entering the local pressure reducing chamber is easy to control.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.
FIG. 1 is a schematic illustration of a partial decompression of a train pipe at the beginning of braking in an embodiment of the invention;
a schematic of the localized abatement chamber venting in an embodiment of the present invention is shown in fig. 2.
Icon: 1-distribution valve, 2-train pipe, 3-vent valve, 4-local reduction chamber, 5-vent hole, 6-control air cylinder, 7-exhaust channel and 8-piston.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all embodiments of the present invention. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Examples
Referring to fig. 1 and 2, the present embodiment proposes a train pipe partial pressure reducing structure including a distribution valve 1;
the distribution valve 1 is internally provided with a train pipe 2 and a vent valve 3, one end of the train pipe 2 is communicated with the vent valve 3, one side of the vent valve 3 is provided with a local reduction chamber 4, the local reduction chamber 4 is positioned in the distribution valve 1, a vent hole 5 is arranged between one end of the local reduction chamber 4 and the vent valve 3, and the local reduction chamber 4 is communicated with the vent valve 3 through the vent hole 5.
The train pipe local pressure reducing structure disclosed by the embodiment has the beneficial effects that the local pressure reducing chamber 4 is formed in the distribution valve 1, the vent hole 5 capable of controlling the speed of the pressure air in the train pipe 2 entering the local pressure reducing chamber 4 is formed in the high-pressure air inlet of the local pressure reducing chamber 4, the speed of the pressure air in the train pipe 2 entering the local pressure reducing chamber 4 can be easily controlled by adopting the vent holes 5 with different inner diameters, the pressure reducing amount of the pressure air in the train pipe 2 entering the local pressure reducing chamber 4 can be easily controlled by changing the volume of the local pressure reducing chamber 4, and the train pipe local pressure reducing structure has good pressure reducing effect, the speed of the pressure air in the train pipe 2 entering the local pressure reducing chamber 4 can be easily controlled, and the pressure reducing amount of the pressure air in the train pipe 2 entering the local pressure reducing chamber 4 can be easily controlled.
Referring to fig. 1 and 2, a control air cylinder 6 is arranged at the lower part of the train pipe 2, the control air cylinder 6 is positioned in the distribution valve 1 and is parallel to the train pipe 2, the control air cylinder 6 is arranged, when the pressure of the upper train pipe is exhausted and reduced, the pressure of the auxiliary air cylinder enters a brake cylinder through the action of a mechanism, and the upward pressure action of the control air cylinder 6 is equal to the downward pressure action of the train pipe 2 and the downward pressure action of the brake cylinder.
The volume of the local reducing chamber 4 can be set to different sizes, and the larger the volume of the local reducing chamber 4 is, the more the pressure gas in the train pipe 2 enters the local reducing chamber 4, and the more the pressure reducing amount of the train pipe 2 enters the local reducing chamber 4; the smaller the volume of the local reducing chamber 4 is, the less the pressure gas in the train pipe 2 enters the local reducing chamber 4, and the less the pressure reducing amount of the train pipe 2 entering the local reducing chamber 4, and the pressure reducing amount of the high-pressure gas in the train pipe 2 entering the local reducing chamber 4 is controlled by changing the volume of the local reducing chamber 4, so that the pressure reducing amount of the train pipe 2 is easily and effectively controlled.
The vent holes 5 can be machined into holes with different internal diameters, the larger the vent holes 5 are, the greater the rate of the pressure gas in the train pipe 2 entering the inlet chamber 4 is, the smaller the vent holes 5 are, and the smaller the rate of the pressure gas in the train pipe 2 entering the inlet chamber 4 is, and by changing the hole diameter of the vent holes 5, the rate of the pressure gas in the train pipe 2 entering the inlet chamber 4 is changed, so that the rate of the pressure gas in the train pipe 2 entering the inlet chamber 4 can be easily controlled.
Referring to fig. 1 and 2, the other side of the vent valve 3 is provided with an exhaust channel 7, the exhaust channel 7 is located on the distribution valve 1, one end of the exhaust channel 7 penetrates through the distribution valve 1, and the other end of the exhaust channel 7 is communicated with the vent valve 3, so that in the inflation process of the distribution valve 1, the pressure air in the local reduction chamber 4 is exhausted to the atmosphere through the vent valve 3 and the exhaust channel 7, and the preparation for the next pressure reduction is facilitated.
The axial direction of train pipe 2 and the axial direction mutually perpendicular of breather valve 3 make distribution valve 1 rational in infrastructure like this, and the outward appearance is clean and tidy, is favorable to reducing the setting of room 4 partially.
The bottom of the vent valve 3 is provided with a piston 8, the top end of the piston 8 is abutted against the telescopic end of the vent valve 3, the pressure gas in the train pipe 2 drives the telescopic end of the vent valve 3 to move back and forth, and the piston 8 moves back and forth synchronously with the telescopic end of the vent valve 3, so that the train pipe 2 can achieve the purpose of rapid pressure reduction.
Referring to fig. 1 and 2, in one embodiment of the present embodiment: a pressure reducing method of a local pressure reducing structure of a train pipe 2 is also provided, firstly, pressure gas in the train pipe 2 enters a local pressure reducing chamber 4 of a distributing valve 1 through a vent valve 3, so that the aim of quickly reducing the pressure of the train pipe 2 in the early braking stage is achieved, meanwhile, the speed of the pressure gas in the train pipe 2 entering the local pressure reducing chamber 4 can be controlled through vent holes 5 with different apertures, the pressure reducing amount of the pressure gas in the train pipe 2 entering the local pressure reducing chamber 4 can be controlled through changing the volume size of the local pressure reducing chamber 4, and finally, in the inflating process of the distributing valve 1, the pressure air in the local pressure reducing chamber 4 is exhausted to the atmosphere through the vent valve 3 and an exhaust channel 7.
In this embodiment, the volume of the local reduction chamber 4 and the inner diameter of the vent hole 5 in different types of the distribution valve 1 are different, and the corresponding distribution valve 1 can be selected according to the actual use requirement.
Referring to fig. 1 and 2, in the present embodiment, the pressurized gas in the train pipe 2 during the initial braking stage enters the vent valve 3 and enters the decompression chamber 4 through the vent hole 5; during the inflation of the dispensing valve 1, the pressurized air in the locally reduced chamber 4 first enters the vent valve 3 through the vent hole 5 and is discharged from the vent valve 3 into the exhaust channel 7.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (8)
1. The utility model provides a train pipe local decompression structure which characterized in that:
comprises a distribution valve;
the distribution valve is internally provided with a train pipe and a vent valve, one end of the train pipe is communicated with the vent valve, one side of the vent valve is provided with a local reduction chamber, the local reduction chamber is positioned in the distribution valve, a vent hole is arranged between one end of the local reduction chamber and the vent valve, and the local reduction chamber is communicated with the vent valve through the vent hole.
2. The train pipe partial pressure reduction structure according to claim 1, characterized in that:
and the lower part of the train pipe is provided with a control air cylinder which is positioned in the distribution valve and is parallel to the train pipe.
3. The train pipe partial pressure reduction structure according to claim 1, characterized in that:
the volume of the local reduction chamber can be set to be different in size, the larger the volume of the local reduction chamber is, the more the pressure gas in the train pipe enters the local reduction chamber, and the more the decompression amount of the train pipe enters the local reduction chamber;
the smaller the volume of the local reduction chamber, the less the pressurized gas in the train pipe enters the local reduction chamber, and the less the amount of depressurization of the train pipe into the local reduction chamber.
4. The train pipe partial pressure reduction structure according to claim 1, characterized in that:
the vent holes can be processed into holes with different internal diameters, the larger the vent holes are, the higher the speed of the pressure gas in the train pipe entering the local reduction chamber is, and the smaller the vent holes are, the lower the speed of the pressure gas in the train pipe entering the local reduction chamber is.
5. The train pipe partial pressure reduction structure according to claim 1, characterized in that:
an exhaust channel is formed in the other side of the vent valve and is located on the distribution valve, one end of the exhaust channel penetrates through the distribution valve, and the other end of the exhaust channel is communicated with the vent valve.
6. The train pipe partial pressure reduction structure according to claim 1, characterized in that:
the axial direction of the train pipe is perpendicular to the axial direction of the vent valve.
7. The train pipe partial pressure reduction structure according to claim 1, characterized in that:
the bottom of the vent valve is provided with a piston, the top end of the piston is abutted against the telescopic end of the vent valve, the pressure gas in the train pipe drives the telescopic end of the vent valve to move back and forth, and the piston moves back and forth synchronously with the telescopic end of the vent valve.
8. A decompression method using a train pipe partial decompression structure according to any one of claims 1 to 7, characterized in that:
firstly, the pressure gas in the train pipe enters the local reduction chamber of the distribution valve through the vent valve, so as to achieve the purpose of quickly reducing the pressure of the train pipe in the early braking period, meanwhile, the rate of the pressure gas in the train pipe entering the local reduction chamber can be controlled through the vent holes with different apertures, the pressure reduction amount of the pressure gas in the train pipe entering the local reduction chamber can also be controlled through changing the volume size of the local reduction chamber, and finally, the pressure air in the local reduction chamber is discharged to the atmosphere through the vent valve and the exhaust channel during the inflation process of the distribution valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210687598.0A CN115107727A (en) | 2022-06-17 | 2022-06-17 | Train pipe local pressure reduction structure and pressure reduction method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210687598.0A CN115107727A (en) | 2022-06-17 | 2022-06-17 | Train pipe local pressure reduction structure and pressure reduction method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115107727A true CN115107727A (en) | 2022-09-27 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210687598.0A Withdrawn CN115107727A (en) | 2022-06-17 | 2022-06-17 | Train pipe local pressure reduction structure and pressure reduction method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115107727A (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201665210U (en) * | 2010-08-20 | 2010-12-08 | 南车株洲电力机车有限公司 | Charging structure of DK locomotive brake emergency valve and emergency room |
| CN102923118A (en) * | 2012-11-22 | 2013-02-13 | 四川制动科技股份有限公司 | Locomotive distribution valve and working method thereof |
| US20150344015A1 (en) * | 2012-12-10 | 2015-12-03 | Faiveley Transport Amiens | Pneumatic brake distributor valve assembly for a rail vehicle |
| CN106627542A (en) * | 2016-11-16 | 2017-05-10 | 眉山中车制动科技股份有限公司 | Multi-way rubber column sealed distribution valve |
| CN107097770A (en) * | 2017-06-27 | 2017-08-29 | 眉山中车制动科技股份有限公司 | A kind of passenger train air brake valve |
| CN108725416A (en) * | 2018-05-30 | 2018-11-02 | 眉山中车制动科技股份有限公司 | One kind subtracting valve rod suitable for the small pressure m air slide valve of passenger train with office |
| CN111688657A (en) * | 2020-07-17 | 2020-09-22 | 眉山中车制动科技股份有限公司 | Stage relieving and direct relieving conversion device and method |
| CN112172771A (en) * | 2020-09-17 | 2021-01-05 | 眉山中车制动科技股份有限公司 | Air brake valve for railway carriage |
| CN112590747A (en) * | 2020-12-23 | 2021-04-02 | 神华铁路装备有限责任公司 | Relay valve structure for electro-pneumatic braking and electro-pneumatic braking control system |
| CN113525326A (en) * | 2021-06-30 | 2021-10-22 | 眉山中车制动科技股份有限公司 | Three-pressure distribution valve |
-
2022
- 2022-06-17 CN CN202210687598.0A patent/CN115107727A/en not_active Withdrawn
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201665210U (en) * | 2010-08-20 | 2010-12-08 | 南车株洲电力机车有限公司 | Charging structure of DK locomotive brake emergency valve and emergency room |
| CN102923118A (en) * | 2012-11-22 | 2013-02-13 | 四川制动科技股份有限公司 | Locomotive distribution valve and working method thereof |
| US20150344015A1 (en) * | 2012-12-10 | 2015-12-03 | Faiveley Transport Amiens | Pneumatic brake distributor valve assembly for a rail vehicle |
| CN106627542A (en) * | 2016-11-16 | 2017-05-10 | 眉山中车制动科技股份有限公司 | Multi-way rubber column sealed distribution valve |
| CN107097770A (en) * | 2017-06-27 | 2017-08-29 | 眉山中车制动科技股份有限公司 | A kind of passenger train air brake valve |
| CN108725416A (en) * | 2018-05-30 | 2018-11-02 | 眉山中车制动科技股份有限公司 | One kind subtracting valve rod suitable for the small pressure m air slide valve of passenger train with office |
| CN111688657A (en) * | 2020-07-17 | 2020-09-22 | 眉山中车制动科技股份有限公司 | Stage relieving and direct relieving conversion device and method |
| CN112172771A (en) * | 2020-09-17 | 2021-01-05 | 眉山中车制动科技股份有限公司 | Air brake valve for railway carriage |
| CN112590747A (en) * | 2020-12-23 | 2021-04-02 | 神华铁路装备有限责任公司 | Relay valve structure for electro-pneumatic braking and electro-pneumatic braking control system |
| CN113525326A (en) * | 2021-06-30 | 2021-10-22 | 眉山中车制动科技股份有限公司 | Three-pressure distribution valve |
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Application publication date: 20220927 |
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| WW01 | Invention patent application withdrawn after publication |