CN222717110U - Skid-mounted compressor unit capable of realizing long-period oil supply - Google Patents
Skid-mounted compressor unit capable of realizing long-period oil supply Download PDFInfo
- Publication number
- CN222717110U CN222717110U CN202421449227.XU CN202421449227U CN222717110U CN 222717110 U CN222717110 U CN 222717110U CN 202421449227 U CN202421449227 U CN 202421449227U CN 222717110 U CN222717110 U CN 222717110U
- Authority
- CN
- China
- Prior art keywords
- oil
- pipe
- main
- tank
- pump
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Landscapes
- Compressor (AREA)
Abstract
本实用新型涉及离心压缩机领域，为解决现有压缩机组无法进行长周期运行的问题，而提出一种可实现长周期供油的撬装压缩机组，包括电动机、齿轮箱、压缩机、底座、总供油管、高位油箱和主供油管，底座内设置有润滑油站，润滑油站包括设置在底座内的油箱和主油泵，主油泵的一端与齿轮箱的低速轴自由端连接；主油泵的进油口通过主油泵进油管与油箱相连，主油泵的出油口通过主油泵回油管与总供油管相连；电动机、齿轮箱、压缩机的进油口均与主供油管相连，电动机、齿轮箱、压缩机的回油口均与油箱相连；高位油箱的进出油口与总供油管连接，高位油箱的回油口与油箱相连；油箱与总供油管之间还设置有辅助油泵和故障辅助油泵。
The utility model relates to the field of centrifugal compressors. In order to solve the problem that the existing compressor units cannot operate for a long period of time, a skid-mounted compressor unit capable of realizing long-period oil supply is proposed. The unit comprises a motor, a gear box, a compressor, a base, a main oil supply pipe, a high-position oil tank and a main oil supply pipe. A lubricating oil station is arranged in the base. The lubricating oil station comprises an oil tank and a main oil pump arranged in the base. One end of the main oil pump is connected to the free end of the low-speed shaft of the gear box. The oil inlet of the main oil pump is connected to the oil tank through the main oil pump oil inlet pipe, and the oil outlet of the main oil pump is connected to the main oil supply pipe through the main oil pump oil return pipe. The oil inlets of the motor, the gear box and the compressor are all connected to the main oil supply pipe, and the oil return ports of the motor, the gear box and the compressor are all connected to the oil tank. The oil inlet and outlet of the high-position oil tank are connected to the main oil supply pipe, and the oil return port of the high-position oil tank is connected to the oil tank. An auxiliary oil pump and a fault auxiliary oil pump are also arranged between the oil tank and the main oil supply pipe.
Description
Technical Field
The utility model relates to the field of centrifugal compressors, in particular to a skid-mounted compressor unit capable of realizing long-period oil supply.
Background
The centrifugal compressor unit is widely applied to various fields such as metallurgy, petrochemical industry, chemical industry, electronics, light industry, aerospace and the like, and along with the development of technology, users put forward higher technical requirements on suppliers so as to meet the application requirements of reducing equipment outage rate, saving land so as to reduce investment cost, integrating functions so as to reduce operation cost and the like.
Most of the conventional centrifugal compressor units at present adopt double-layer arrangement, particularly large-scale compressor units, two layers of concrete platforms are required to be designed, motors, gear boxes and compressors are all arranged on the two layers of platforms, and all shafting devices adopt independent bases. The lubrication oil station system required by the unit is arranged on the ground of a layer, and the oil stations are connected with all oil-using equipment through pipelines, so that the defects of large occupied area, inconvenient installation, large design difficulty, high factory building height, multiple lubrication oil connection points and the like exist, and the whole cost is high, the investment is large, and the construction period is long.
At present, a conventional centrifugal compressor unit basically adopts a main oil pump and auxiliary oil pump design, wherein the main oil pump and the auxiliary oil pump are arranged on a lubricating oil station, the main oil pump is used under normal conditions, when the oil pressure is insufficient or the main oil pump fails, an auxiliary oil pump (auxiliary oil pump) is required to be started to work, but the auxiliary oil pump may also fail in the running process, so that the unit is stopped, the production is stopped, and the long-period running required by a user cannot be met.
Disclosure of utility model
The utility model aims to solve the technical problems that the existing centrifugal compressor unit has the defects of large occupied area, inconvenient installation, large design difficulty, high factory building height, multiple lubricating oil connection points and the like, so that the overall cost is high, the investment is large, the construction period is long, and the main oil pump and the auxiliary oil pump possibly fail in the running process, so that the unit is stopped and the production is stopped, and the long-period running cannot be guaranteed.
In order to achieve the above purpose, the technical solution provided by the present utility model is as follows:
The skid-mounted compressor unit capable of realizing long-period oil supply comprises a motor, a gear box, a compressor, a base, a main oil supply pipe, a high-level oil tank and a main oil supply pipe connected with the main oil supply pipe, wherein the motor is connected with a low-speed shaft of the gear box through a first coupler, a high-speed shaft of the gear box is connected with the compressor through a second coupler, the gear box and the compressor are both arranged on the base, and a lubricating oil station is arranged in the base, and the skid-mounted compressor unit is characterized in that:
The lubricating oil station comprises a main oil pump and an oil tank arranged in a base, wherein the driving end of the main oil pump is connected with the free end of a low-speed shaft of the gear box;
the oil inlets of the motor, the gear box and the compressor are all connected with a main oil supply pipe, and the oil return ports of the high-level oil tank are all connected with an oil tank;
An auxiliary oil pump and a fault auxiliary oil pump are arranged between the oil tank and the total oil supply pipe and used for assisting the main oil pump to work.
The main oil pump oil return pipe is connected with the total oil supply pipe through an oil filling pipe and an oil filling pipe check valve, and the cut-off direction of the oil filling pipe check valve is the direction of flowing to the main oil pump oil return pipe;
The main oil pump oil inlet pipe is also connected with the total oil supply pipe through an oil filling pipe and an oil filling pipe check valve, and the cut-off direction of the oil filling pipe check valve is the direction of flowing to the main oil pump oil inlet pipe.
The oil tank is connected with the main oil supply pipe through an adjusting valve group, and is used for controlling and adjusting the stability of oil pressure, the oil inlet end of the adjusting valve group is connected with the main oil supply pipe, and the oil outlet end of the adjusting valve group is connected with the oil tank.
Further, auxiliary check valves are arranged between the auxiliary oil pump and the main oil supply pipe as well as between the fault auxiliary oil pump and the main oil supply pipe.
Further, a duplex oil cooler and a duplex oil filter are sequentially arranged on the total oil supply pipe along the flowing direction of the lubricating oil.
Further, an oil side exhaust pipe is arranged between the oil pipe and the oil tank in the duplex oil cooler.
Further, the compressor is a built-in cooling type compressor;
The first coupler is a diaphragm coupler;
The second coupling is a rigid coupling.
Further, a drain outlet is also arranged on the high-level oil tank.
Further, the motor and the compressor are provided with two oil inlets and two oil return ports, the two oil inlets are connected with the main oil supply pipe, and the two oil return ports are connected with the oil tank.
Further, an electric heater is arranged below one end of the oil tank, an oil tank drain outlet is arranged below the other end of the oil tank, and a purifier interface, an air filter and an oil mist discharging fan are arranged above the oil tank.
The utility model has the beneficial effects that:
【1】 The skid-mounted compressor unit capable of realizing long-period oil supply has the advantages of high structural integration level, effective reduction of the occupied area of equipment, reduction of construction cost and production cost, simple installation mode, high unit operation efficiency, convenient operation and maintenance in the use process, obvious overall energy-saving effect, low shutdown rate and effective guarantee of long-period operation of the unit.
【2】 According to the utility model, the main oil pump is driven to work through the free end of the low-speed shaft of the gear box, the auxiliary oil pump and the fault auxiliary oil pump are arranged between the oil tank and the main oil supply pipe, and when the unit normally operates, the main oil pump meets the oil supply requirement of the unit under the driving of the gear box;
When the main oil pump fails, the failure auxiliary oil pump can still meet the normal operation of the unit, meet the requirement of long-period operation of a user, and ensure the reliability of unit oil supply;
The auxiliary oil pump and the fault auxiliary oil pump can be detached on line for inspection and maintenance, so that the service life of the unit can be effectively prolonged, and the safety and reliability of the unit are improved;
meanwhile, under normal conditions, the auxiliary oil pump and the fault auxiliary oil pump do not work, and the main oil pump works, so that the aim of saving energy can be achieved, and the production and operation cost is effectively reduced.
【3】 According to the utility model, the oil inlet and the oil outlet of the main oil pump are respectively connected with the oil tank through the main oil pump oil inlet pipe and the main oil pump oil return pipe, wherein the main oil pump oil inlet pipe and the main oil pump oil return pipe are respectively provided with the oil filling pipe connected with the main oil supply pipe, the mutual switching between the oil inlet and the oil outlet of the main oil pump can be realized through the cooperation between the check valve on the main oil pump oil inlet pipe and the main oil pump oil return pipe and the check valve on the oil filling pipe, the rotation direction of the main oil pump is not required to be considered, the oil supply requirement of a unit can be met, the normal operation of the unit is ensured, and the failure rate of the unit is effectively reduced.
Drawings
FIG. 1 is a schematic diagram of an exemplary skid-mounted compressor unit capable of providing oil for a long period of time;
FIG. 2 is a schematic diagram of a connection structure of a lubrication circuit according to an embodiment of the present utility model;
Reference numerals:
1-motor, 2-first coupler, 3-gear box, 4-second coupler, 5-compressor, 6-base, 7-lubricating oil station, 8-oil tank, 9-main oil pump, 10-main oil supply pipe, 11-main oil supply pipe, 12-high-level oil tank lubricating oil inlet and outlet pipe, 13-high-level oil tank, 14-auxiliary oil pump, 15-fault auxiliary oil pump, 16-main oil pump oil inlet pipe, 17-main oil pump oil return pipe, 18-duplex oil cooler, 19-duplex oil filter, 20-oil side blast pipe, 21-oil charge pipe check valve, 22-regulating valve group, 23-electric heater, 24-purifier interface, 25-oil tank drain, 26-air filter, 27-oil mist discharging fan, 28-drain, 29-check valve, 30-auxiliary check valve, 31-oil charge pipe.
Detailed Description
A skid-mounted compressor unit capable of realizing long-period oil supply is shown in fig. 1 and 2 and comprises a motor 1, a gear box 3, a compressor 5, a base 6, a total oil supply pipe 10, a high-level oil tank 13 and a main oil supply pipe 11 connected with the total oil supply pipe 10, wherein the motor 1 is connected with a low-speed shaft of the gear box 3 through a first coupling 2, the high-speed shaft of the gear box 3 is connected with the compressor 5 through a second coupling 4, the gear box 3 and the compressor 5 are both arranged on the base 6, and a lubricating oil station 7 is arranged in the base 6.
The lubricating oil station 7 comprises a main oil pump 9 and an oil tank 8 arranged in the base 6, the main oil pump 9 is connected with the free end of a low-speed shaft of the gear box 3, the gear box 3 provides power for the main oil pump 9, an oil inlet of the main oil pump 9 is connected with the oil tank 8 through a main oil pump oil inlet pipe 16, an oil outlet of the main oil pump 9 is connected with a total oil supply pipe 10 through a main oil pump oil return pipe 17 and a check valve 29, in the embodiment, the oil outlet of the main oil pump 9 is connected with the oil tank 8 through the main oil pump oil return pipe 17 and the check valve 29, the main oil pump oil return pipe 17 is connected with the total oil supply pipe 10 through an oil filling pipe 31 and the check valve 21, the check valve 21 is connected with the main oil pump oil return pipe 17, the check valve 29 is arranged between the main oil pump oil inlet pipe 16 and the oil tank 8, the check valve 29 is connected with the total oil supply pipe 10 through the oil filling pipe 31 and the check valve 21, and the check valve 21 is used for realizing the mutual switching between the oil inlet and the oil outlet of the main oil pump 9.
The oil inlet and the oil outlet of the main oil pump 9 are respectively connected with the oil tank 8 through a main oil pump oil inlet pipe 16 and a main oil pump oil return pipe 17, wherein the main oil pump oil inlet pipe 16 and the main oil pump oil return pipe 17 are respectively provided with an oil filling pipe 31 connected with the total oil supply pipe 10, and the mutual switching between the oil inlet and the oil outlet of the main oil pump 9 can be realized through the cooperation between a check valve 29 on the main oil pump oil inlet pipe 16 and the main oil pump oil return pipe 17 and an oil filling pipe check valve 21 on the oil filling pipe 31 without considering the rotation direction of the main oil pump 9, so that the oil supply requirement of a unit can be met;
An adjusting valve group 22 is arranged between the oil tank 8 and the total oil supply pipe 10 and used for controlling and adjusting the stability of oil pressure, the oil inlet end of the adjusting valve group 22 is connected with the total oil supply pipe 10, the oil outlet end of the adjusting valve group 22 is connected with the oil tank 8, and the adjusting valve group 22 is a conventional adjusting valve group of the lubricating oil station 7.
An auxiliary oil pump 14 and a fault auxiliary oil pump 15 are further arranged between the oil tank 8 and the total oil supply pipe 10, an auxiliary check valve 30 is arranged between the auxiliary oil pump 14 and the fault auxiliary oil pump 15 and between the total oil supply pipe 10, the auxiliary oil pump 14 can be used for supplying oil to a unit when the unit starts up, the main oil pump 9 meets the requirement of supplying oil to the unit under the drive of the gear box 3 when the unit normally operates, the auxiliary oil pump 14 can be used for supplying oil to the unit when the main oil pump 9 breaks down, the fault auxiliary oil pump 15 still can meet the normal operation of the unit when the main oil pump 9 breaks down, and the auxiliary oil pump 14 can be overhauled on line to meet the requirement of long-period operation of a user. Meanwhile, under normal conditions, the auxiliary oil pump 14 and the fault auxiliary oil pump 15 do not work, and the main oil pump 9 works, so that the aim of energy saving is fulfilled.
The duplex oil cooler 18 and the duplex oil filter 19 are sequentially arranged on the total oil supply pipe 10 along the flowing direction of lubricating oil, on-line switching of the duplex oil cooler 18 and the duplex oil filter 19 can be realized through three-way switching valves arranged on the duplex oil cooler 18 and the duplex oil filter 19, and an oil side exhaust pipe 20 is arranged between an oil pipe in the duplex oil cooler 18 and the oil tank 8.
The oil inlets of the motor 1, the gear box 3 and the compressor 5 are all connected with a main oil supply pipe 11, and the oil return ports are all connected with an oil tank 8, the oil inlet and outlet ports of a high-level oil tank 13 are connected with a main oil supply pipe 10 through a high-level oil tank lubricating oil inlet and outlet pipe 12, and the oil return ports of the high-level oil tank 13 are connected with the oil tank 8;
The oil inlet and outlet of the high-level oil tank 13 is connected with the total oil supply pipe 10 through the high-level oil tank lubricating oil inlet and outlet pipe 12, the oil return port of the high-level oil tank 13 is connected with the oil tank 8, the motor 1 and the compressor 5 are respectively provided with two oil inlets and two oil return ports, the gear box 3 is provided with one oil inlet and one oil return port, lubricating oil is supplied to each lubricating point through the main oil supply pipe 11 and each branch pipe, meanwhile, the high-level oil tank 13 is supplied with oil and discharged through the high-level oil tank lubricating oil inlet and outlet pipe 12, all equipment and oil returned from the high-level oil tank 13 are directly returned to the oil tank 8, and the high-level oil tank 13 is also provided with an oil discharging and dirt discharging port 28.
An electric heater 23 is arranged below one end of the oil tank 8, an oil tank drain outlet 25 is arranged below the other end of the oil tank 8, a purifier interface 24, an air filter 26 and an oil mist discharging fan 27 are arranged above the oil tank 8, and the auxiliary oil station operates normally.
The compressor 5 is a built-in cooling type compressor, the first coupling 2 adopts a diaphragm coupling, and the second coupling 4 is a rigid coupling.
The built-in cooling type compressor adopts axial air intake, adopts inlet guide vanes for adjustment at the inlet of the compressor, realizes adjustment of flow and pressure of the centrifugal compressor through the adjustment of the inlet guide vanes, and meanwhile, the built-in cooler can furthest reduce pressure loss, and is isothermal compression, so that the efficiency of the compressor is obviously improved, and the energy consumption is reduced.
The gear box 3, the second coupling 4, the compressor 5 and other equipment, the base 6 and the lubricating oil station 7 form a skid-mounted structure together, the motor is an independent base, the height of the concrete foundation of the motor part is adjusted according to the height difference between the motor and the skid-mounted structure, and the whole machine set is arranged at one layer in a factory building (a two-layer concrete platform is not required to be designed). The method has the advantages of high integration of the unit, high concentration of land area, low factory building height, quick and convenient field installation, low comprehensive cost, low one-time investment and the like.
In the embodiment of the invention, the main oil pump 9 is normally used, motor drive is not needed, energy is saved obviously during long-period operation, and meanwhile, the auxiliary oil pump 14 and the fault auxiliary oil pump 15 can ensure that the unit still continues to operate when the main oil pump 9 is in fault, thereby ensuring the production requirement of users.
The utility model can save a great deal of time for users in design, is convenient and simple to install on site, has high unit operation efficiency, convenient operation and maintenance, obvious energy-saving effect and lower comprehensive shutdown rate.
Claims (10)
1. The skid-mounted compressor unit capable of realizing long-period oil supply comprises a motor (1), a gear box (3), a compressor (5), a base (6), a total oil supply pipe (10), a high-level oil tank (13) and a main oil supply pipe (11) connected with the total oil supply pipe (10), wherein the motor (1) is connected with a low-speed shaft of the gear box (3) through a first coupling (2), a high-speed shaft of the gear box (3) is connected with the compressor (5) through a second coupling (4), the gear box (3) and the compressor (5) are both arranged on the base (6), and a lubricating oil station (7) is arranged in the base (6), and the skid-mounted compressor unit is characterized in that:
The lubricating oil station (7) comprises a main oil pump (9) and an oil tank (8) arranged in the base (6), wherein the driving end of the main oil pump (9) is connected with the free end of a low-speed shaft of the gear box (3), the oil inlet of the main oil pump (9) is connected with the oil tank (8) through a main oil pump oil inlet pipe (16), and the oil outlet is connected with a total oil supply pipe (10) through a main oil pump oil return pipe (17);
The oil inlets of the motor (1), the gear box (3) and the compressor (5) are connected with a main oil supply pipe (11), and the oil return ports are connected with an oil tank (8), wherein the oil inlet and outlet ports of the high-level oil tank (13) are connected with a main oil supply pipe (10) through a high-level oil tank lubricating oil inlet and outlet pipe (12), and the oil return ports of the high-level oil tank (13) are connected with the oil tank (8);
An auxiliary oil pump (14) and a fault auxiliary oil pump (15) are arranged between the oil tank (8) and the total oil supply pipe (10) and used for assisting the main oil pump (9) to work.
2. The skid-mounted compressor unit capable of realizing long-period oil supply according to claim 1, wherein:
The oil outlet of the main oil pump (9) is also connected with the oil tank (8) through a main oil pump oil return pipe (17) and a check valve (29), the stop direction of the check valve (29) is the flow direction of the oil tank (8), the main oil pump oil return pipe (17) is connected with the total oil supply pipe (10) through an oil filling pipe (31) and an oil filling pipe check valve (21), and the stop direction of the oil filling pipe check valve (21) is the flow direction of the main oil pump oil return pipe (17);
A check valve (29) is arranged between the main oil pump oil inlet pipe (16) and the oil tank (8), the stop direction of the check valve (29) is the direction of flowing to the oil tank (8), the main oil pump oil inlet pipe (16) is also connected with the total oil supply pipe (10) through an oil filling pipe (31) and an oil filling pipe check valve (21), and the stop direction of the oil filling pipe check valve (21) is the direction of flowing to the main oil pump oil inlet pipe (16).
3. The skid-mounted compressor unit capable of realizing long-period oil supply according to claim 2, wherein:
The oil tank (8) is connected with the total oil supply pipe (10) through the regulating valve group (22) for controlling and regulating the stability of oil pressure, the oil inlet end of the regulating valve group (22) is connected with the total oil supply pipe (10), and the oil outlet end of the regulating valve group is connected with the oil tank (8).
4. A skid-mounted compressor unit capable of realizing long-period oil supply according to claim 1, 2 or 3, wherein:
Auxiliary check valves (30) are arranged between the auxiliary oil pump (14) and the fault auxiliary oil pump (15) and the total oil supply pipe (10).
5. The skid-mounted compressor unit capable of realizing long-period oil supply according to claim 4, wherein:
The total oil supply pipe (10) is sequentially provided with a duplex oil cooler (18) and a duplex oil filter (19) along the flowing direction of lubricating oil.
6. The skid-mounted compressor unit capable of realizing long-period oil supply according to claim 5, wherein:
an oil side exhaust pipe (20) is arranged between an oil pipe and an oil tank (8) in the duplex oil cooler (18).
7. The skid-mounted compressor unit capable of realizing long-period oil supply according to claim 6, wherein:
the compressor (5) is a built-in cooling type compressor;
The first coupler (2) is a diaphragm coupler;
The second coupling (4) is a rigid coupling.
8. The skid-mounted compressor unit capable of realizing long-period oil supply according to claim 7, wherein:
And a drain outlet (28) is also arranged on the high-level oil tank (13).
9. The skid-mounted compressor unit capable of realizing long-period oil supply according to claim 8, wherein:
The motor (1) and the compressor (5) are respectively provided with two oil inlets and two oil return ports, the two oil inlets are respectively connected with the main oil supply pipe (11), and the two oil return ports are respectively connected with the oil tank (8).
10. The skid-mounted compressor unit capable of realizing long-period oil supply according to claim 9, wherein:
An electric heater (23) is arranged below one end of the oil tank (8), an oil tank drain outlet (25) is arranged below the other end of the oil tank, and a purifier interface (24), an air filter (26) and an oil mist discharging fan (27) are arranged above the oil tank (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202421449227.XU CN222717110U (en) | 2024-06-24 | 2024-06-24 | Skid-mounted compressor unit capable of realizing long-period oil supply |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202421449227.XU CN222717110U (en) | 2024-06-24 | 2024-06-24 | Skid-mounted compressor unit capable of realizing long-period oil supply |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN222717110U true CN222717110U (en) | 2025-04-04 |
Family
ID=95170694
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202421449227.XU Active CN222717110U (en) | 2024-06-24 | 2024-06-24 | Skid-mounted compressor unit capable of realizing long-period oil supply |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN222717110U (en) |
-
2024
- 2024-06-24 CN CN202421449227.XU patent/CN222717110U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201326421Y (en) | Steam turbine lubricating oil supply device | |
| CN112523870B (en) | Gas turbine lubricating oil system | |
| CN207701324U (en) | A kind of large-scale compressor lubricating system | |
| CN222717110U (en) | Skid-mounted compressor unit capable of realizing long-period oil supply | |
| CN207064349U (en) | A kind of hydraulic pump station | |
| CN108087322B (en) | Lubricating system of turbine compressor unit | |
| CN205400703U (en) | Novel electricity drives fracturing sled | |
| CN217976338U (en) | Standby oil supply system of steam turbine | |
| CN207961037U (en) | A kind of lubricating system of turbo compressor unit | |
| CN206093453U (en) | Gas turbine auxiliary oil cylinders system | |
| CN214577887U (en) | Centrifugal compressor lubricating oil cooling system | |
| CN212079678U (en) | Multi-shaft compressor unit with base serving as oil station | |
| CN217872949U (en) | Jacking oil device for power plant maintenance | |
| CN202284474U (en) | Main driving mechanism of six-arm cutting disk for shield machine | |
| CN107559210B (en) | High temperature molten salt pump | |
| CN216110885U (en) | An Improved Steam Turbine Lubricating Oil Supply System | |
| CN109322809A (en) | A plunger water pump integrated application system | |
| CN117738880A (en) | Skid-mounted compressor unit | |
| CN216950502U (en) | Emergency oil supply system for lubricating oil of steam turbine | |
| CN111883340B (en) | A Reliable Main Transformer Cooling Water Supply and Drainage System | |
| CN209586656U (en) | A kind of power end cooling system integrated with fracturing pump | |
| CN215486470U (en) | Large-scale steam turbine driven compressor unit matching oil station | |
| CN208237450U (en) | A kind of compressor lubrication system with urgent oil circuit | |
| CN207122559U (en) | Constant speed pump oil-supplementing system for speed-regulating hydraulic coupler transmission device | |
| CN219139153U (en) | A pre-lubrication device for high-power engine with manual function |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |