CN218687996U - Improved air supply unit - Google Patents
Improved air supply unit Download PDFInfo
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- CN218687996U CN218687996U CN202223073642.3U CN202223073642U CN218687996U CN 218687996 U CN218687996 U CN 218687996U CN 202223073642 U CN202223073642 U CN 202223073642U CN 218687996 U CN218687996 U CN 218687996U
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- air
- regeneration
- pipeline
- humidity sensor
- humidity
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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
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T30/00—Transportation of goods or passengers via railways, e.g. energy recovery or reducing air resistance
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Abstract
The utility model discloses an improved air supply unit, which comprises an air compressor, a double-tower dryer, a pipeline component and a vehicle-mounted control unit, wherein the pipeline component is connected with the air compressor, the double-tower dryer and an air utilization device, and also comprises a first humidity sensor for detecting the ambient humidity, a second humidity sensor for detecting the humidity of the outlet gas of the air supply unit and a regeneration electromagnetic valve for controlling the opening and closing of a regeneration gas path of the double-tower dryer, wherein the first humidity sensor, the second humidity sensor and the regeneration electromagnetic valve are in signal connection with the vehicle-mounted control unit; when the first humidity sensor detects that the ambient humidity is lower than a first set value, the vehicle-mounted control unit controls the regeneration electromagnetic valve to close the regeneration air path; when the second humidity sensor detects that the humidity of the air discharged by the double-tower dryer is higher than a second set value, the vehicle-mounted control unit controls the regeneration electromagnetic valve to open the regeneration air path. The utility model provides a modified air feed unit, the energy can be saved improves the work efficiency of air compressor machine.
Description
Technical Field
The utility model relates to a rail vehicle technical field, in particular to modified air feed unit.
Background
The air supply unit of the rail vehicle is mainly used for supplying clean and dry compressed air for the rail vehicle, and is used for a vehicle brake system and other wind equipment. In the prior art, a double-tower dryer is usually used for a wind supply unit of a vehicle during operation, when one drying tower works, the other drying tower is in a regeneration state, and dry and clean air is consumed for regeneration, so that actual air delivery of an air compressor is reduced, the dry air consumption rate is generally 20% -40%, and the energy loss is relatively large. Generally, the initial air charging time of a train is required to be as short as possible, the initial air charging time of an existing air supply unit cannot meet the requirement, an air compressor with high air supply quantity needs to be selected, and the problem of oil emulsification is caused.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing an improved air supply unit, but the energy can be saved improves the air feed volume.
Based on the above problem, the utility model provides a technical scheme is:
an improved air supply unit comprises an air compressor, a double-tower dryer, a pipeline assembly and a vehicle-mounted control unit, wherein the pipeline assembly is connected with the air compressor, the double-tower dryer and air utilization equipment, the improved air supply unit also comprises a first humidity sensor for detecting the ambient humidity, a second humidity sensor for detecting the humidity of air at an outlet of the air supply unit and a regeneration electromagnetic valve for controlling the opening and closing of a regeneration air path of the double-tower dryer, and the first humidity sensor, the second humidity sensor and the regeneration electromagnetic valve are in signal connection with the vehicle-mounted control unit;
when the first humidity sensor detects that the ambient humidity is lower than a first set value, the vehicle-mounted control unit controls the regeneration electromagnetic valve to close the regeneration air path; when the second humidity sensor detects that the humidity of the air discharged by the double-tower dryer is higher than a second set value, the vehicle-mounted control unit controls the regeneration electromagnetic valve to open the regeneration air path.
In one embodiment, the pipeline assembly comprises a first pipeline connecting the air compressor and an air inlet of the double-tower dryer, a second pipeline connecting an air outlet of the double-tower dryer and the air utilization equipment, and the second humidity sensor is mounted on a pipe section, close to the air utilization equipment, of the second pipeline.
In one embodiment, the first pipeline is connected with the air compressor through a hose.
In one embodiment, a first safety valve is arranged on the first pipeline, and a second safety valve is arranged on a pipe section of the second pipeline close to the double-tower dryer.
In one embodiment, an oil filter is disposed on a section of the second pipeline between the second relief valve and the second humidity sensor.
Compared with the prior art, the utility model has the advantages that:
1. by adopting the technical scheme of the utility model, the regeneration solenoid valve is arranged on the regeneration gas path of the double-tower dryer and used for controlling the opening and closing of the regeneration gas path, when the ambient humidity is lower than a set value or the vehicle is inflated for the first time, the regeneration gas path is closed by the regeneration solenoid valve, and the dry air for regeneration is directly introduced into the downstream air utilization equipment, so that the energy is saved, the air supply amount is improved, and the working efficiency of the air compressor is improved;
2. set up the first humidity transducer that detects environment humidity and the second humidity transducer that is used for detecting air feed unit export humidity, detect environment humidity through first humidity transducer, close regeneration gas circuit with regeneration solenoid valve cooperation, detect the humidity of air feed unit export through second humidity transducer, open regeneration gas circuit with regeneration solenoid valve cooperation, realize closed-loop control, air humidity reaches a definite value and just carries out regeneration operation, and energy saving consumes, the work efficiency of improvement air compressor machine.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required to be used in the description of the embodiments are briefly introduced below, the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic structural diagram of an embodiment of an improved air supply unit of the present invention;
FIG. 2 is a schematic diagram of a dual tower dryer of the prior art;
FIG. 3 is a schematic diagram of a double-tower dryer according to an embodiment of the present invention;
wherein:
1. an air compressor;
2. a double-tower dryer; 2-1, a first drying tank; 2-2, a second drying tank; 2-3, an air inlet pipeline; 2-4, a first pipeline; 2-5, a second pipeline; 2-6, double piston valves; 2-7, a third pipeline; 2-8, a fourth pipeline; 2-9 parts of an air outlet pipeline; 2-10 parts of overflow valve; 2-11, check valve; 2-12, a regeneration gas circuit; 2-13, regeneration electromagnetic valve;
3. a hose;
4. a first pipeline;
5. a second pipeline;
6. a first humidity sensor;
7. a second humidity sensor;
8. a regenerative solenoid valve;
9. a first safety valve;
10. a second relief valve;
11. an oil filter;
12. a vehicle control unit.
Detailed Description
The above-described scheme is further illustrated below with reference to specific examples. It should be understood that these examples are for illustrative purposes and are not intended to limit the scope of the present invention. The conditions used in the examples may be further adjusted according to the conditions of the particular manufacturer, and the conditions not specified are generally the conditions in routine experiments.
Referring to fig. 1, for the utility model discloses structural schematic diagram provides a modified air supply unit, including air compressor machine 1, two tower driers 2, pipeline assembly and on-vehicle control unit 12, pipeline assembly connects air compressor machine 1, two tower driers 2 and with wind equipment to carry to with wind equipment after the compressed air drying of air compressor machine 1 output.
The double-tower dryer 2 is the prior art, and is shown in a figure 2, and comprises a first drying tank 2-1, a second drying tank 2-2, a double-piston valve 2-6 and an overflow valve 2-10, wherein an air inlet pipeline 2-3 is connected to the double-piston valve 2-6, the double-piston valve 2-6 is connected to the first drying tank 2-1 through a first pipeline 2-4 and is connected to the second drying tank 2-2 through a second pipeline 2-5, the first drying tank 2-1 is connected to an air outlet pipeline 2-9 through a third pipeline 2-7, the second drying tank 2-2 is connected to an air outlet pipeline 2-9 through a fourth pipeline 2-8, the overflow valve 2-10 is arranged on the air outlet pipeline 2-9, check valves 2-11 are respectively arranged on the third pipeline 2-7 and the fourth pipeline 2-8, and a regeneration air path 2-12 is connected between the third pipeline 2-7 and the fourth pipeline 2-8. Wherein A1 is an air inlet and is connected with an air compressor; a2 is an air outlet which is connected with an air device; k3 is a waste gas outlet and is connected with the atmosphere.
Specifically, the pipeline assembly comprises a first pipeline 4 for connecting air inlets of the air compressor 1 and the double-tower dryer 2, and a second pipeline 5 for connecting an air outlet of the double-tower dryer 2 and air utilization equipment, wherein the first pipeline 4 is connected with the air compressor 1 through a hose 3.
In order to reduce energy consumption and improve the working efficiency of the compressor 1, the air supply unit is further provided with a first humidity sensor 6 for detecting ambient humidity, a second humidity sensor 7 for detecting the humidity of air at an outlet of the air supply unit, and regeneration electromagnetic valves 2-13 (shown in fig. 3) for controlling the opening and closing of regeneration air paths 2-12 of the double-tower dryer 2, wherein the first humidity sensor 6, the second humidity sensor 7 and the regeneration electromagnetic valves 2-13 are in signal connection with vehicle control units 2-12. Wherein the first humidity sensor 6 is mountable on a mounting frame of the air supply unit and the second humidity sensor 7 is mounted on a pipe section of the second pipeline 5 near the wind equipment. The connection between first humidity transducer 6, second humidity transducer 7, regeneration solenoid valve 2-13 and vehicle control unit 12 is prior art, the utility model discloses no longer describe repeatedly.
When the first humidity sensor 6 detects that the ambient humidity is lower than a first set value (for example, 10%), the vehicle-mounted control unit 12 controls the regeneration electromagnetic valves 2-13 to close the regeneration air paths 2-12; when the second humidity sensor 7 detects that the humidity of the air discharged by the double-tower dryer 2 is higher than a second set value (for example, 35%), the vehicle-mounted control unit 12 controls the regeneration electromagnetic valves 2-13 to open the regeneration air paths 2-12, so as to regenerate the drying agent. Wherein the second set value is greater than the first set value.
In order to improve the safety performance, a first safety valve 9 is arranged on the first pipeline 4 and used for preventing the air compressor 1 from being over-pressurized and exhausting air when the pressure is higher than 12 bar; a second safety valve 10 is provided on the second line 5 in the section close to the double-column dryer 2 in order to prevent an overpressure in the system, and to vent air when the pressure is higher than 10.5 bar.
In order to filter oil remaining in the compressed air, an oil filter 11 is provided on the second line 5 in the section between the second safety valve 10 and the second humidity sensor 7.
The utility model discloses a theory of operation does:
when the first drying tank 2-1 is in a regeneration stage and the second drying tank 2-2 is in a working stage, the first humidity sensor 6 detects the ambient humidity in real time and transmits a signal to the vehicle control unit 12, when the first humidity sensor 6 detects that the ambient humidity is lower than a first set value, the vehicle control unit 12 controls the regeneration electromagnetic valve 2-13 to close the regeneration air path 2-12, all air supplied by the air compressor 1 enters the second drying tank 2-2 through the air inlet pipeline 2-3 and the double piston valve 2-6 for drying, the dry air is discharged to air utilization equipment through the fourth pipeline 2-8 and the air outlet pipeline 2-9, and the dry air for regeneration (20-40% of the air supply amount of the air compressor) is used for the air utilization equipment; when the second humidity sensor 7 detects that the humidity of the air discharged by the double-tower dryer 2 is higher than a second set value, the vehicle-mounted control unit 12 controls the regeneration electromagnetic valve 2-13 to open the regeneration air path 2-12, and meanwhile, the drying tanks in operation are switched forcibly, namely, the first drying tank 2-1 is controlled to be in the operation stage, and the second drying tank 2-2 is controlled to be in the regeneration stage, so that part of the air dried by the first drying tank 2-1 flows into the second drying tank 2-2 through the regeneration air path 2-12 to regenerate the drying agent.
When the second drying tank 2-2 is in regeneration and the first drying tank 2-1 is in a working stage, the first humidity sensor 6 detects the ambient humidity in real time and transmits a signal to the vehicle control unit 12, when the first humidity sensor 6 detects that the ambient humidity is lower than a first set value, the vehicle control unit 12 controls the regeneration electromagnetic valve 2-13 to close the regeneration air path 2-12, all air supplied by the air compressor 1 enters the first drying tank 2-1 through the air inlet pipeline 2-3 and the double piston valve 2-6 to be dried, the dried air is discharged to the air utilization equipment through the third pipeline 2-7 and the air outlet pipeline 2-9, and the dried air for regeneration (20-40% of the air supply amount of the air compressor) is used for the air utilization equipment; when the second humidity sensor 7 detects that the humidity of the air discharged by the double-tower dryer 2 is higher than a second set value, the vehicle-mounted control unit 12 controls the regeneration electromagnetic valve 2-13 to open the regeneration air path 2-12, and at the same time, the working drying tank is forcibly switched, namely, the second drying tank 2-2 is controlled to be in the working stage, the first drying tank 2-1 is controlled to be in the regeneration stage, so that part of the air dried by the second drying tank 2-1 flows into the first drying tank 2-1 through the regeneration air path 2-12 to regenerate the drying agent.
When the vehicle is initially charged, the regeneration gas circuit 2-12 can be cut off, the initial charging time can be shortened, the air compressor 1 with larger air supply quantity does not need to be replaced, and the working efficiency of the air compressor 1 is improved.
In conclusion, the air supply unit can save energy, improve air supply quantity and improve the working efficiency of the air compressor.
The above examples are only for illustrating the technical conception and the features of the present invention, and the purpose thereof is to enable one skilled in the art to understand the contents of the present invention and to implement the present invention, which should not be construed as limiting the scope of the present invention. All equivalent changes and modifications made according to the spirit of the present invention should be covered by the protection scope of the present invention.
Claims (5)
1. The utility model provides a modified air supply unit, includes air compressor machine, two tower driers, pipeline subassembly and on-vehicle the control unit, the pipeline subassembly is connected air compressor machine, two tower driers and with wind equipment, its characterized in that: the system also comprises a first humidity sensor for detecting the environment humidity, a second humidity sensor for detecting the humidity of the air at the outlet of the air supply unit and a regeneration electromagnetic valve for controlling the opening and closing of a regeneration air path of the double-tower dryer, wherein the first humidity sensor, the second humidity sensor and the regeneration electromagnetic valve are in signal connection with the vehicle-mounted control unit;
when the first humidity sensor detects that the ambient humidity is lower than a first set value, the vehicle-mounted control unit controls the regeneration electromagnetic valve to close the regeneration air path; when the second humidity sensor detects that the humidity of the air discharged by the double-tower dryer is higher than a second set value, the vehicle-mounted control unit controls the regeneration electromagnetic valve to open the regeneration air path.
2. The improved air supply unit of claim 1, wherein: the pipeline assembly comprises a first pipeline and a second pipeline, the first pipeline is connected with the air compressor and the air inlet of the double-tower dryer, the air outlet of the double-tower dryer is connected with the air consumption equipment, and the second humidity sensor is installed on a pipe section, close to the air consumption equipment, of the second pipeline.
3. The improved air supply unit of claim 2, wherein: the first pipeline is connected with the air compressor through a hose.
4. The improved air supply unit of claim 2, wherein: and a first safety valve is arranged on the first pipeline, and a second safety valve is arranged on a pipe section, close to the double-tower dryer, of the second pipeline.
5. The improved air supply unit according to claim 4, wherein: and an oil filter is arranged on a pipe section, positioned between the second safety valve and the second humidity sensor, of the second pipeline.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223073642.3U CN218687996U (en) | 2022-11-18 | 2022-11-18 | Improved air supply unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223073642.3U CN218687996U (en) | 2022-11-18 | 2022-11-18 | Improved air supply unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218687996U true CN218687996U (en) | 2023-03-24 |
Family
ID=85622053
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223073642.3U Active CN218687996U (en) | 2022-11-18 | 2022-11-18 | Improved air supply unit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218687996U (en) |
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2022
- 2022-11-18 CN CN202223073642.3U patent/CN218687996U/en active Active
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