CN213116590U - Quick start-up system of hydrogen compressor - Google Patents
Quick start-up system of hydrogen compressor Download PDFInfo
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- CN213116590U CN213116590U CN202021322839.4U CN202021322839U CN213116590U CN 213116590 U CN213116590 U CN 213116590U CN 202021322839 U CN202021322839 U CN 202021322839U CN 213116590 U CN213116590 U CN 213116590U
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Abstract
The utility model provides a quick starting system of a hydrogen compressor, which comprises an electromagnetic unloading valve and an overflow valve; after passing through the hydraulic pump, one path of the oil delivery pipe is connected with an oil port of the compression cylinder through the check valve and the hydraulic slide valve, and the other path of the oil delivery pipe returns to an oil tank through the overflow valve and the electromagnetic unloading valve. Before starting the hydrogen compressor, opening an electromagnetic unloading valve and an overflow valve to enable a hydraulic pump to be in an idle state, and starting a motor for driving the hydraulic pump; after the motor is started, the electromagnetic unloading valve and the overflow valve are closed to enable the hydraulic pump to enter a pressurization mode, and the hydrogen compressor is started to achieve the purpose of quick starting.
Description
Technical Field
The utility model relates to a system for hydrogen compressor quick start under the off-state in hydrogenation station.
Background
As a new automobile fuel, hydrogen has the advantages of small air pollution, high heat efficiency, rich sources, economy and the like, and in order to solve the problem of air pollution caused by the traditional fuel automobile, the hydrogen fuel cell automobile is vigorously developed in the country in recent years. In order to solve the problem of the endurance of hydrogen fuel cell vehicles, the nation has a plan to build hydrogen stations in various places.
The hydrogen filling station is a gas station for providing hydrogen for a hydrogen fuel cell automobile, and at present, the hydrogen supplied by the domestic hydrogen filling station is mainly high-pressure hydrogen. The hydrogen is from an external supply (transported to a hydrogenation station by a trailer truck) or produced on site. The hydrogenation process comprises the following steps: the externally supplied hydrogen or the hydrogen produced on site is firstly delivered to the hydrogen storage bottle group for the station through the hydrogen compressor, and then is hydrogenated to the vehicle-mounted hydrogen storage bottle through the hydrogenation machine by utilizing the pressure difference between the hydrogen storage bottle group for the station and the vehicle-mounted hydrogen storage bottle.
Because the construction and use of the domestic hydrogen station are just started, the current domestic hydrogen station has the main problems in the use process: the hydrogen compressor has low starting speed, high energy consumption, long hydrogenation waiting time of a user vehicle and low hydrogenation efficiency, and hinders the development of a hydrogen fuel cell automobile.
SUMMERY OF THE UTILITY MODEL
In view of the above, the present invention provides a quick starting system for hydrogen compressor, which can quickly start the hydrogen compressor in a shutdown state, reduce the energy consumption of the hydrogen compressor, shorten the hydrogenation time of the user, and improve the hydrogenation efficiency.
In order to achieve the above purpose, the utility model adopts the following technical scheme: a quick start system of a hydrogen compressor comprises an electromagnetic unloading valve and an overflow valve; one end of an oil delivery pipe is inserted into an oil tank, the other end of the oil delivery pipe passes through a hydraulic pump, and then one path of the oil delivery pipe passes through a check valve and an oil way A of a hydraulic slide valve to be connected with an oil port A of a compression cylinder of a hydrogen compressor, and the other path of the oil delivery pipe returns to the oil tank through an overflow valve and an electromagnetic unloading valve;
before starting the hydrogen compressor, only opening the electromagnetic unloading valve and the overflow valve to enable the hydraulic pump to be in an idle load state, and starting the motor for driving the hydraulic pump to enable the motor to be started in an idle load state; and after the motor is started, immediately closing the electromagnetic unloading valve and the overflow valve, opening the hydraulic slide valve, enabling the hydraulic pump to enter a pressurization mode, and enabling hydraulic oil to flow through a compression cylinder in the hydrogen compressor through the hydraulic pump, the one-way valve and the hydraulic slide valve and return to the oil tank.
In the preferred embodiment of the present invention, the rated output power of the motor driving the hydraulic pump is less than or equal to 60KW, and the output capacity of the secondary side of the transformer supplying power to the motor is greater than or equal to 200 KVA.
In the preferred embodiment of the present invention, the oil port B of the compression cylinder of the hydrogen compressor is returned to the oil tank through the oil pipeline, the oil path B of the hydraulic slide valve, the oil tank heat exchanger, and the hydraulic oil filter;
the device also comprises an electromagnetic directional valve, a directional module and a displacement sensor;
the displacement sensor is arranged at the end part of the compression cylinder of the hydrogen compressor and used for sensing the displacement of a piston in the compression cylinder of the hydrogen compressor, and the signal output end of the displacement sensor is connected with the signal input end of the reversing module;
and the control signal output end of the reversing module is connected with the control end of the electromagnetic reversing valve, and the control signal output end of the electromagnetic reversing valve is connected with the control end of the hydraulic sliding valve.
Drawings
Fig. 1 is a schematic structural view of the rapid start and stop system of the hydrogen compressor of the present invention.
Detailed Description
The structure and features of the present invention will be described in detail below with reference to the accompanying drawings and examples. It should be noted that various modifications can be made to the embodiments disclosed herein, and therefore, the embodiments disclosed in the specification should not be considered as limitations of the present invention, but merely as exemplifications of the embodiments, which are intended to make the features of the present invention apparent.
As shown in fig. 1, the utility model discloses a hydrogen compressor quick start system includes isolated hydrogen compressor 1, hydraulic slide valve 2, check valve 3, hydraulic pump 4, motor 5 and oil tank 6. One end of an oil delivery pipe 7 is inserted into the oil tank 6, and the other end of the oil delivery pipe is connected with an oil port A of a compression cylinder 11 of the hydrogen compressor 1 through an oil way A of a hydraulic pump 4, a check valve 3 and a hydraulic slide valve 2; an oil port B of a compression cylinder of the hydrogen compressor 1 returns to the oil tank 6 through an oil conveying pipe 8, an oil path B of the hydraulic slide valve 2, an oil tank heat exchanger 9 and a hydraulic oil filter 10.
And starting the motor 5, driving the hydraulic pump 4 to work by the motor 5, conveying hydraulic oil in the oil tank 6 into a compression cylinder 11 of the hydrogen compressor through an oil conveying pipe 7, the check valve 3 and an oil path A of the hydraulic slide valve 2, driving a piston 12 in the compression cylinder to reciprocate, compressing hydrogen, and returning the hydraulic oil in the compression cylinder 11 to the oil tank 6 through an oil conveying pipe 8, an oil path B of the hydraulic slide valve 2, an oil tank heat exchanger 9 and a hydraulic oil filter 10.
In order to control the reciprocating motion of the piston 12 in the compression cylinder 11 of the hydrogen compressor 1, as shown in fig. 1, the present invention further comprises an electromagnetic directional valve 13, a directional module 14 and a displacement sensor 15. The displacement sensor 15 is arranged at the end part of a compression cylinder 11 of the hydrogen compressor and used for sensing the displacement of a piston 12 in the cylinder, the signal output end of the displacement sensor 15 (model number SOMSE-0500-S01P-MEPS-2XXX series manufactured by Shenzhen Shang, science and technology development Limited) is connected with the signal input end of a reversing module 14 (module EN231 manufactured by Siemens corporation), the control signal output end of the reversing module is connected with the control end of the electromagnetic reversing valve 13, and the control signal output end of the electromagnetic reversing valve 13 is connected with the control end of the hydraulic slide valve 2.
The utility model discloses a 15 sensing of displacement sensor compression cylinder inner piston 12's reciprocating motion displacement volume transmits for switching-over module 14, and switching-over module 14 is according to the piston reciprocating motion displacement volume of setting for, controls the switching of electromagnetic directional valve 13, and the switching of two oil circuits of rethread electromagnetic directional valve 13 control hydraulic pressure slide valve 2, and then the reciprocating motion displacement volume of control compression cylinder inner piston 12 realizes the compression output to hydrogen.
In order to realize the quick start of the hydrogen compressor, as shown in fig. 1, the utility model discloses still include a quick start branch road, this quick start branch road includes electromagnetism off-load valve 16 and overflow valve 17. After passing through the hydraulic pump 4, the oil delivery pipe 7 is connected with an oil port A of a compression cylinder of the hydrogen compressor through the check valve 3 and the hydraulic slide valve 2, and the other path returns to the oil tank 6 through the overflow valve 17 and the electromagnetic unloading valve 16. Before the hydrogen compressor 1 is started, the electromagnetic directional valve 13 and the hydraulic slide valve 2 are closed, and only the electromagnetic unloading valve 16 and the overflow valve 17 are opened (at the moment, the overflow valve 17 is in a release mode); then, starting the motor 5 for driving the hydraulic pump 4 to enable the motor 5 for driving the hydraulic pump to start in an idle load state, namely the hydraulic pump 4 is in an idle load state and loses the pressurizing and working capacity; after the motor 5 is started, the electromagnetic unloading valve 16 and the overflow valve 17 are closed (at the moment, the overflow valve 17 is in an overpressure prevention protection mode), the electromagnetic directional valve 13 and the hydraulic slide valve 2 are opened, the hydraulic pump enters a pressurization mode, hydraulic oil flows through the compression cylinder in the hydrogen compressor through the hydraulic pump 4, the check valve 3 and the hydraulic slide valve 2 and returns to the oil tank 6, and hydrogen is compressed through the reciprocating motion of the piston 12 in the compression cylinder.
The utility model discloses a turn-off of each valve of control, open the order, make 5 no-load startups of motor that drive hydraulic pump 4, and then make fluid pressure type hydrogen compressor can be in the short time quick start, realize hydrogen compressor's quick start purpose. For the quick start who realizes hydrogen compressor, the utility model discloses the hydraulic pump of chooseing for use is the constant power hydraulic pump, and the motor rated output power of drive hydraulic pump is less than or equal to 60KW, and the transformer secondary side output capacity for the motor power supply is for being greater than or equal to 200 KVA.
The utility model discloses in the embodiment, the rated output of the motor 5 that drives hydraulic pump work is 22KW, and rated output is 39.8A, and starting current is 91A, and electromagnetic unloading valve 16's close time is 0.1 second, and isolated hydrogen compressor hydrogen entry pneumatic valve open time is 0.15 second, and hydrogen export pneumatic valve open time is 0.15 second. After the motor 5 for driving the hydraulic pump to work is started, the hydrogen compressor enters a compression state within 3 seconds, the current of the motor 5 is stable, the inlet pressure range of the hydrogen compressor is 20-200 Bar, the outlet exhaust pressure is 450Bar, the working efficiency of the hydrogen compressor is greatly improved, the dead time of the hydrogen compressor is reduced, the electric energy consumption is reduced, meanwhile, the hydrogenation waiting time of a customer is shortened, the customer waiting psychology is relieved, and the operation efficiency of a hydrogenation station is improved
For guaranteeing fluid pressure type hydrogen compressor safe operation, the utility model discloses still be equipped with the level sensor 19 that is used for monitoring the temperature sensor 18 of oil tank temperature, monitoring oil tank hydraulic oil liquid level, monitor solenoid directional valve hydraulic pressure's pressure transmitter 20. The signal output end of the sensor is connected with an indicator light and an alarm, when abnormal conditions occur in the running process of the system, the alarm is given, the hydraulic pump driving motor and the hydrogen compressor power supply are cut off, and the work is stopped.
The utility model discloses can the action of manual control motor 5, electromagnetism off-load valve 16, overflow valve 17, also can be through PLC programmable controller control. When the control is carried out by the PLC, the signal output ends of monitoring sensors such as a temperature sensor, a liquid level sensor and the like can be connected with the signal input end of the PLC, and the control signal output end of the PLC is respectively connected with the control end of the motor 5, the control end of the electromagnetic unloading valve 16 and the control end of the overflow valve 17. When the system has a fault, such as the temperature of the oil tank is overhigh, the lowest oil level of the low pressure of hydraulic oil in the oil tank is low, and the like, the PLC immediately outputs a control signal to stop the motor 5 from running, and cut off the oil way of the compression cylinder of the hydraulic hydrogen compressor to stop the hydrogen compressor. Before the hydrogen compressor is started, the electromagnetic unloading valve 16 and the overflow valve 17 are opened to start the motor 5 for driving the hydraulic pump in a no-load mode, and after the motor 5 is started in the no-load mode, the overflow valve 17 and the electromagnetic unloading valve 16 are closed to enable the piston in the hydrogen compression clothes compression cylinder to reciprocate under the driving of hydraulic oil to compress hydrogen.
The utility model discloses an add the quick start branch road, before the hydrogen compressor starts, make the motor empty load start-up that drives hydraulic pump work earlier, restart hydrogen compressor to make hydrogen compressor realize quick start. The utility model has the advantages that: the hydrogen compressor is started quickly, the energy consumption of the hydrogen compressor is reduced, the hydrogenation time is shortened, and the hydrogenation efficiency is improved. The utility model discloses make hydrogen compressor's the start-up speed about 3 minutes faster than traditional diaphragm compressor. The dead time is short, and the electric energy is saved. Compared with a diaphragm compressor, the hydrogenation time is shortened, and the operation efficiency of a hydrogenation station is improved.
Because the utility model discloses a quick start branch road that adds makes hydrogen compressor quick start, gets into the pressure boost state, compares with traditional diaphragm type hydrogen compressor and need not external buffer tank and recovery tank, reduces hydrogenation station area and design institute work load, reduces the installation cost expense of hydrogenation station operator, shortens construction cycle, reduces compressor starting current in the operation, reaches 2.5Ie at minimum.
Finally, it should be noted that: the above-mentioned embodiments are only used for illustrating the technical solution of the present invention, and not for limiting the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention.
Claims (3)
1. The utility model provides a hydrogen compressor quick start-up system which characterized in that: the electromagnetic unloading valve comprises an electromagnetic unloading valve and an overflow valve; one end of an oil delivery pipe is inserted into an oil tank, the other end of the oil delivery pipe passes through a hydraulic pump, and then one path of the oil delivery pipe passes through a check valve and an oil way A of a hydraulic slide valve to be connected with an oil port A of a compression cylinder of a hydrogen compressor, and the other path of the oil delivery pipe returns to the oil tank through an overflow valve and an electromagnetic unloading valve;
before starting the hydrogen compressor, only opening the electromagnetic unloading valve and the overflow valve to enable the hydraulic pump to be in an idle load state, and starting a motor for driving the hydraulic pump to enable the motor to be started in an idle load state; and after the motor is started, immediately closing the electromagnetic unloading valve and the overflow valve, opening the hydraulic slide valve, enabling the hydraulic pump to enter a pressurization mode, and enabling hydraulic oil to flow through a compression cylinder in the hydrogen compressor through the hydraulic pump, the one-way valve and the hydraulic slide valve and return to the oil tank.
2. The hydrogen compressor rapid start-up system according to claim 1, characterized in that: the rated output power of a motor for driving the hydraulic pump is less than or equal to 60KW, and the secondary side output capacity of a transformer for supplying power to the motor is more than or equal to 200 KVA.
3. The hydrogen compressor rapid start-up system according to claim 2, characterized in that: an oil port B of the compression cylinder of the hydrogen compressor returns to an oil tank through an oil conveying pipe, an oil way B of the hydraulic slide valve, an oil tank heat exchanger and a hydraulic oil filter;
the device also comprises an electromagnetic directional valve, a directional module and a displacement sensor;
the displacement sensor is arranged at the end part of the compression cylinder of the hydrogen compressor and used for sensing the displacement of a piston in the compression cylinder of the hydrogen compressor, and the signal output end of the displacement sensor is connected with the signal input end of the reversing module;
and the control signal output end of the reversing module is connected with the control end of the electromagnetic reversing valve, and the control signal output end of the electromagnetic reversing valve is connected with the control end of the hydraulic sliding valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021322839.4U CN213116590U (en) | 2020-07-08 | 2020-07-08 | Quick start-up system of hydrogen compressor |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202021322839.4U CN213116590U (en) | 2020-07-08 | 2020-07-08 | Quick start-up system of hydrogen compressor |
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| CN213116590U true CN213116590U (en) | 2021-05-04 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116221059A (en) * | 2023-02-28 | 2023-06-06 | 三一氢能有限公司 | Compression ratio regulating and controlling method and device for multistage compression system |
| EP4242457A1 (en) | 2022-03-08 | 2023-09-13 | Air Products and Chemicals, Inc. | Apparatus and method for cryogenic pump cooldown |
-
2020
- 2020-07-08 CN CN202021322839.4U patent/CN213116590U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP4242457A1 (en) | 2022-03-08 | 2023-09-13 | Air Products and Chemicals, Inc. | Apparatus and method for cryogenic pump cooldown |
| CN116221059A (en) * | 2023-02-28 | 2023-06-06 | 三一氢能有限公司 | Compression ratio regulating and controlling method and device for multistage compression system |
| CN116221059B (en) * | 2023-02-28 | 2024-01-23 | 三一氢能有限公司 | Compression ratio regulating and controlling method and device for multistage compression system |
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