CN214367021U - Hydraulic energy station with compressor load stepping control function - Google Patents
Hydraulic energy station with compressor load stepping control function Download PDFInfo
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- CN214367021U CN214367021U CN202120373308.6U CN202120373308U CN214367021U CN 214367021 U CN214367021 U CN 214367021U CN 202120373308 U CN202120373308 U CN 202120373308U CN 214367021 U CN214367021 U CN 214367021U
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Abstract
The utility model discloses a hydraulic energy station with a compressor load stepping control function, wherein an oil outlet and an oil return port of the hydraulic energy station are communicated with an actuating mechanism of a stepless air quantity adjusting system; the oil tank improves the oil supply pressure through the inverted motor pump set; the motor pump set comprises an oil pump, a cooler and a motor; the motor-pump set is connected with a valve block; the valve block comprises an oil inlet channel communicated with the oil pump and an oil return channel communicated with the cooler; the oil inlet channel leads to the oil outlet, and the oil return channel leads to the oil return port; the oil outlet and the oil return port are connected to an actuating mechanism of the stepless air flow regulating system through a two-position three-way control valve; the two-position three-way control valve is communicated, and pressure oil enters the execution mechanism of the stepless air flow adjusting system from the oil outlet to work; the two-position three-way control valve is cut off, and pressure oil is decompressed through the oil return port and enters the oil return channel. The hydraulic energy station is reasonably provided with the control element through the arrangement structure corresponding to the oil way, can provide load grading control for the reciprocating compressor stepless air quantity adjusting system, and has wide application prospect.
Description
Technical Field
The utility model relates to a stepless tolerance governing system hydraulic pressure energy source station field of reciprocating compressor, especially one kind can be used for stepless tolerance governing system actuating mechanism's pressure oil supply, can be used for the hydraulic pressure energy source station of conventional stepping load control again.
Background
The reciprocating compressor stepless air quantity regulating system generally adopts a hydraulic pump station to provide hydraulic energy. The hydraulic oil station has the main function of providing high-pressure oil for the actuating mechanism of the stepless air quantity regulating system and is a power source of the air quantity regulating system. It raises the normal pressure oil to the working pressure of the system by a gear pump.
Under the common condition, the piston compressor realizes the unloading of a compressor cylinder through a set of pneumatic unloading device and is used for the no-load starting of the compressor at the starting stage so as to avoid the occurrence of larger starting current and the damage of a driving motor. The pneumatic unloading device can respectively control the load of each acting cavity of the compressor cylinder through an electromagnetic control valve, and the stepped load control of 0%, 50% and 100% is realized. In order to save energy, when the compressor is provided with a stepless air flow regulating system of a control air valve type, an original pneumatic unloading device needs to be removed, and an electric control hydraulic actuating mechanism is reconstructed, so that stepless regulation of air flow of the compressor is realized. However, when the stepless air quantity regulating system fails and cannot be put into use, if the hydraulic energy station keeps running, the compressor is in a zero-load state, and if the hydraulic energy station is closed, the compressor is in a 100% load state, namely a full-load state. When the compressor is suddenly increased from zero load to 100% load, a large load current is generated for the driving motor, and the safe and reliable operation of the motor is influenced. Therefore, a new solution for controlling the stepped load of 0%, 50% and 100% is needed to provide a hydraulic energy source station to provide a power oil source.
One of the existing technical schemes is provided by the Chinese utility model patent CN205744698U, a one-driving-two clearance adjusting electro-hydraulic control cabinet, which relates to the hydraulic technology and the reciprocating compressor air flow adjusting technology. The one-driving-two clearance adjusting electro-hydraulic control cabinet shares one oil tank, one oil pump, one overflow valve, one power cable and corresponding electrical control equipment, and ensures that only 1 power cable and corresponding electrical control equipment are needed when 2 reciprocating compressors in the same plant are equipped for clearance stepless adjustment, so that the one-driving-two clearance adjusting electro-hydraulic control cabinet occupies small installation space, brings great convenience to field installation and maintenance, simultaneously utilizes resources to the maximum extent, and reduces the manufacturing cost and the maintenance cost. However, this method is not suitable for a stepless air quantity regulating system of a reciprocating compressor for realizing stepless air quantity regulation by controlling an air valve, and cannot provide a solution for stepping control of the load of the compressor.
Therefore, there is a need for a hydraulic energy station suitable for a stepless air volume regulating system of a reciprocating compressor for realizing stepless air volume regulation by controlling an air valve, and the hydraulic energy station can provide a solution for controlling the load of the compressor in different steps.
SUMMERY OF THE UTILITY MODEL
The utility model discloses the purpose is: the hydraulic energy station with the compressor load step control function is provided, and the problem of load step control of a reciprocating compressor stepless air quantity adjusting system is solved.
The technical scheme of the utility model is that: a hydraulic energy station with a compressor load step control function is used for providing hydraulic energy and conventional step load adjustment for a piston compressor stepless air quantity adjusting system.
The hydraulic energy station mainly comprises an oil tank, a motor, a cooler, an oil pump, an overflow valve, a high-pressure filter, a one-way valve, a pressure release valve, a pressure gauge, a pressure transmitter, an oil supply ball valve, an oil return ball valve, a liquid level switch, a temperature transmitter and the like.
The hydraulic oil station has the main function of providing high-pressure oil for the actuating mechanism of the stepless air quantity regulating system and is a power source of the air quantity regulating system. It raises the normal pressure oil to the working pressure of the system by a gear pump.
The oil tank improves the oil supply pressure through the motor-pump set, the motor-pump set comprises an oil pump, a cooler and a motor, and the motor-pump set is connected with a valve block. The valve block comprises an oil inlet channel communicated with the oil pump and an oil return channel communicated with the cooler; the oil inlet channel leads to the oil outlet, and the oil return channel leads to the oil return port. The oil inlet channel is communicated with the stepless air quantity adjusting system executing mechanism through a plurality of oil outlets on the valve block; and the actuating mechanism of the stepless air quantity regulating system is communicated with the oil return channel through a plurality of oil return ports on the valve block.
Preferably, the oil outlet and the oil return port are connected to an actuating mechanism of the stepless air quantity regulating system through a two-position three-way control valve; the two-position three-way control valve is communicated, and pressure oil enters the execution mechanism of the stepless air flow adjusting system from the oil outlet to work; the two-position three-way control valve is cut off, and pressure oil is decompressed through the oil return port and enters the oil return channel.
Preferably, the system comprises an overflow valve, and the maximum working pressure is adjusted through the adjustment of the overflow valve;
preferably, a pressure release valve is included, when the hydraulic energy station stops working, the pressure of the hydraulic oil in the pressure pipeline can be quickly released;
preferably, the cooling device comprises a motor and a cooler, wherein the motor and the cooler are axially installed into a whole, and when the motor rotates, the motor drives the fan blades and the oil pump of the cooler to operate. The cooler is integrated in the motor-pump group, and the cooling fan and the gear pump share one motor. The motor pump set adopts an inverted type and is arranged above the oil tank. The oil pump adopts a gear pump and is arranged in the oil tank.
Preferably, a pressure transmitter, a temperature transmitter and a liquid level switch or a liquid level transmitter are arranged;
preferably, the oil-saving valve is provided with a valve block and an upper end cover, wherein the valve block is provided with six oil inlet and oil return ports, an oil inlet channel and an oil return channel are arranged inside the valve block, the oil inlet is communicated with the oil inlet channel, and the oil return port is communicated with the oil return channel; the oil inlet channel is connected with the outlet of the gear pump, and the oil return channel is connected with the cooler.
Preferably, a high pressure filter is mounted to the upper end cap.
The utility model has the advantages that:
1. the hydraulic energy station is reasonably provided with the control element through the arrangement structure corresponding to the oil way, and can provide load stepping control for the reciprocating compressor stepless air quantity adjusting system.
2. The hydraulic energy station has reasonable loop arrangement, takes the sudden problem in practical application into consideration, shortens the technical gap with imported similar products, improves the reliability of equipment operation, and reduces the maintenance cost of enterprises.
3. The hydraulic energy station can be used in a reciprocating compressor stepless air quantity adjusting system, can be expanded to other conventional stepped load control systems, and has wide application prospect.
Drawings
The invention will be further described with reference to the following drawings and examples:
fig. 1 is a layout diagram of a hydraulic energy station with a compressor load step control function according to the present invention;
wherein: 1. a ball valve; 2. an oil tank; 3. a refueling filter; 4. an air cleaner; 5. an oil return filter; 6. a motor; 7. a cooler; 8. an oil pump; 9. an overflow valve; 10. a high pressure filter; 11. a one-way valve; 12. a pressure relief valve; 13. a stop valve; 14. a pressure gauge; 15. a pressure transmitter; 16. an oil supply ball valve; 17. an oil return ball valve; 18. a liquid level switch; 19. a temperature transmitter; 20. and (4) oil marking.
Detailed Description
The utility model discloses a preferred embodiment 1:
the hydraulic energy station with the compressor load stepping control function is used for providing hydraulic energy and conventional stepping load adjustment for a piston compressor stepless air quantity adjusting system.
The hydraulic energy station mainly comprises an oil tank 2, a motor 6, a cooler 7, an oil pump 8, an overflow valve 9, a high-pressure filter 10, a one-way valve 11, a pressure release valve 12, a pressure gauge 14, a pressure transmitter 15, an oil supply ball valve 16, an oil return ball valve 17, a liquid level switch 18, a temperature transmitter 19 and the like.
The hydraulic oil station has the main function of providing high-pressure oil for the actuating mechanism of the stepless air quantity regulating system, is a power source of the air quantity regulating system, and improves the normal-pressure oil to the working pressure of the system through the gear pump.
The motor pump set comprises a motor 6, an oil pump 8 and a cooler 7, and is arranged above the oil tank 2 in an inverted mode. The cooler 7 is integrated in the motor-pump package, and the cooling fan and the gear pump share one motor 6. The oil pump 8 adopts a gear pump and is arranged inside the oil tank 2.
The air filter 4 mainly functions to filter air when oil in the oil tank 2 drops and air needs to be supplemented, and can be used as an oil filling port.
The high-pressure filter 10 and the check valve 11 are arranged in the pressure oil circuit, and the high-pressure filter 10 can filter pressure oil. The nominal flow rate was 60L/min and the filtration accuracy was 3 μm.
An oil filling oil path is connected to the oil tank 2, and an oil filling filter 3 and an air filter 4 are arranged on the oil filling oil path to ensure the cleanness of hydraulic oil. The bottom of the oil tank 2 is also provided with an oil discharge oil path, and the oil discharge oil path is provided with a ball valve 1 to control the on-off.
An oil return filter 5 is arranged in the system and is used for filtering the hydraulic oil which flows back to the oil tank 2, and the filtering precision is 10 mu m.
The overflow valve 9 in the system is mainly used for setting the maximum working pressure of the system, and the purpose of protecting the system is achieved when the system pressure is overlarge.
The pressure relief valve 12 is used to achieve automatic unloading of the system when the motor is off. A pressure gauge 14 and a pressure transmitter 15 are also arranged on the oil inlet pipeline to feed back real-time pressure.
The system is provided with 2 oil supply ball valves 16 and 2 oil return ball valves 17 which are respectively connected with an oil inlet and an oil return port of the hydraulic actuating mechanism.
The ball valves on the inlet and return must always remain open while the system is operating. And a two-position three-way electromagnetic control valve is arranged behind the oil supply ball valve 16 and used for controlling the on-off of a group of oil inlet pipelines.
In principle: the hydraulic system adopts a gear pump to supply oil, and the pressure of the system is set by an overflow valve. The motor-pump set is started, and pressure oil enters the actuating mechanism to be driven through the high-pressure filter and the flow dividing valve set; and return oil of the actuating mechanism and the overflow valve returns to the oil tank after passing through the cooler and the return oil filter. The oil supply and return paths of the actuating mechanism are controlled by a manual ball valve. Meanwhile, the oil supply pipeline is also controlled by a group of electromagnetic control unloading valves.
The utility model discloses a preferred embodiment 2:
a hydraulic energy station with a compressor load step control function is used for providing hydraulic energy and conventional step load adjustment for a piston compressor stepless air quantity adjusting system. The hydraulic energy station comprises a main oil tank 2, a motor 6, a cooler 7, an oil pump 8, an overflow valve 9, a high-pressure filter 10, a one-way valve 11, a pressure release valve 12, a pressure gauge 14, a pressure transmitter 15, an oil supply ball valve 16, an oil return ball valve 17, a liquid level switch 18, a temperature transmitter 19 and the like.
The main technical parameters are as follows:
1) working medium: 10-15CSt, VG10 or VG15 (GB11118.1-2011, GB/T3141-1994);
2) working medium filtration accuracy: 10 mu m;
3) ambient temperature: the temperature is 0-60 ℃, and the relative humidity is not more than 98%;
4) temperature of the medium: not more than 70 ℃;
5) rated flow rate: 7.2L/min;
6) the highest working pressure: 20MPa;
7) effective volume of the oil tank: 63L;
8) continuous working time: more than or equal to 8000h;
9) noise: not greater than 70dB (A);
10) the explosion-proof grade is as follows: EX de IIC-T4 for use in hydrogen environment (GB/T3836.1-2000)
The utility model discloses a preferred embodiment 3:
a hydraulic energy station with a compressor load step control function is used for providing hydraulic energy and conventional step load adjustment for a piston compressor stepless air quantity adjusting system. The hydraulic energy station mainly comprises an oil tank 2, a motor 6, a cooler 7, an oil pump 8, an overflow valve 9, a high-pressure filter 10, a one-way valve 11, a pressure release valve 12, a pressure gauge 14, a pressure transmitter 15, an oil supply ball valve 16, an oil return ball valve 17, a liquid level switch 18, a temperature transmitter 19 and the like.
The hydraulic oil station has the main function of providing high-pressure oil for the actuating mechanism of the stepless air quantity regulating system and is a power source of the air quantity regulating system. It raises the normal pressure oil to the working pressure of the system by a gear pump. The cooler 7 is integrated in the motor-pump package, and the cooling fan and the gear pump share one motor 6. The air filter 4 mainly functions to filter air when oil in the oil tank 2 drops and air needs to be supplemented, and can be used as an oil filling port.
Based on the scheme, the oil pipe from the hydraulic oil station to the actuator is divided into two paths, the two paths are respectively removed from the shaft side actuator and the cover side actuator, each path of oil is controlled by an explosion-proof two-position three-way electromagnetic directional valve, and the load is increased by 0-50% -100% and the gear of the 'stepless system operation' is increased. The unloading of the oil fed from the side cover of the shaft is 0 grade; unloading at the cover side, closing an oil way at the shaft side, and enabling the compressor to be at a 50% load gear; the oil passages on the side of the cover side shaft are closed, and the compressor is in a 100% load gear. When the stepless system is normally put into operation, the oil way is in a conducting state, and 0-50% -100% of load gears cannot be used. The load control method is listed in the following table:
| gear position | Axial side (O means oil passage closed, X means oil passage open) | Cover side |
| 0 | X | X |
| 50% | O | X |
| 100% | O | O |
Claims (10)
1. A hydraulic energy station with a compressor load stepping control function comprises: the oil tank, the oil pump, the oil outlet and the oil return port; the oil outlet and the oil return port are communicated with an actuating mechanism of the stepless air flow adjusting system; the method is characterized in that: the oil tank is reversely arranged above the oil tank to improve the oil supply pressure; the motor pump set comprises the oil pump, a cooler and a motor; the motor-pump set is connected with a valve block; the valve block comprises an oil inlet channel communicated with the oil pump and an oil return channel communicated with the cooler; the oil inlet channel leads to the oil outlet, and the oil return channel leads to the oil return port; the oil outlet and the oil return port are connected to an actuating mechanism of the stepless air flow adjusting system through a two-position three-way control valve; the two-position three-way control valve is communicated, and pressure oil enters the execution mechanism of the stepless air flow adjusting system from the oil outlet to work; the two-position three-way control valve is cut off, and pressure oil is decompressed through the oil return port and enters the oil return channel.
2. The hydraulic power station with the compressor load stepping control function according to claim 1, characterized in that: the motor and the cooler are axially installed into a whole; the motor drives the cooler and the oil pump to operate simultaneously.
3. The hydraulic power station with the compressor load stepping control function according to claim 1, characterized in that: the oil inlet channel directly releases pressure to the oil tank through the pressure release valve.
4. The hydraulic power station with the compressor load stepping control function according to claim 1, characterized in that: and an overflow valve is arranged between the inlet of the oil inlet channel and the outlet of the oil return channel to adjust the working pressure.
5. The hydraulic power station with the compressor load stepping control function according to claim 1, characterized in that: and the oil inlet channel on the valve block is provided with a high-pressure filter.
6. The hydraulic power station with the compressor load stepping control function according to claim 1, characterized in that: and an outlet of the cooler is communicated with the oil return filter and then is communicated with the oil tank.
7. The hydraulic power station with the compressor load stepping control function according to claim 1, characterized in that: an oil filling filter, an air filter, a temperature sensor and an oil pointer are further arranged in the oil tank.
8. The hydraulic power station with the compressor load stepping control function according to claim 1, characterized in that: and a liquid level switch or a liquid level transmitter is also arranged in the oil tank.
9. The hydraulic power station with the compressor load stepping control function according to claim 1, characterized in that: the oil pump is arranged in oil liquid in the oil tank, and the gear pump is selected as the oil pump.
10. The hydraulic power station with the compressor load stepping control function according to claim 1, characterized in that: a group of oil supply ball valves are arranged on the oil outlets; and a group of oil return ball valves are arranged on the oil return port.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120373308.6U CN214367021U (en) | 2021-02-10 | 2021-02-10 | Hydraulic energy station with compressor load stepping control function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120373308.6U CN214367021U (en) | 2021-02-10 | 2021-02-10 | Hydraulic energy station with compressor load stepping control function |
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| Publication Number | Publication Date |
|---|---|
| CN214367021U true CN214367021U (en) | 2021-10-08 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120373308.6U Active CN214367021U (en) | 2021-02-10 | 2021-02-10 | Hydraulic energy station with compressor load stepping control function |
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| Country | Link |
|---|---|
| CN (1) | CN214367021U (en) |
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2021
- 2021-02-10 CN CN202120373308.6U patent/CN214367021U/en active Active
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