CN207701324U - A kind of large-scale compressor lubricating system - Google Patents

A kind of large-scale compressor lubricating system Download PDF

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Publication number
CN207701324U
CN207701324U CN201820001249.8U CN201820001249U CN207701324U CN 207701324 U CN207701324 U CN 207701324U CN 201820001249 U CN201820001249 U CN 201820001249U CN 207701324 U CN207701324 U CN 207701324U
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Prior art keywords
pump
outlet
import
lubricating
compressor
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CN201820001249.8U
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Inventor
许乃谦
孙建民
将玉峰
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CHANGZHOU HUALI HYDRAULIC EQUIPMENT Co Ltd
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CHANGZHOU HUALI HYDRAULIC EQUIPMENT Co Ltd
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Abstract

The utility model provides a kind of large-scale compressor lubricating system, including fuel tank, driving device, overflow mechanism, cooling device, filter device, decompressor, thermostat valve, second oil circuit, pressure control device and lubricating arrangement, driving device includes auxiliary pump group and main pump group, auxiliary pump group is driven by motor, main pump group is installed on the compressor by driven compressor, main pump group works when compressor set works normally, auxiliary pump group only works when compressor is switched on and shuts down, the working time of auxiliary pump is reduced significantly, reduce the energy consumption of lubricating system, reduce the operating cost of compressor set, coordinate pressure control device and thermostat valve simultaneously, closed-loop control flows into the pressure and temperature of lubricating arrangement inner fluid, ensure the stable operation of system.

Description

A kind of large-scale compressor lubricating system
Technical field
The utility model is related to compressor lubrication system technical field more particularly to a kind of large-scale compressor lubricating systems.
Background technology
Compressor is a kind of driven fluid machinery that low-pressure gas is promoted to high pressure gas, it sucks low from air intake duct The refrigerant gas of warm low pressure, is operated by motor after being compressed to it with piston, and high temperature and pressure is discharged to exhaust pipe Gas, compressor set not only include the ontology of compressor, further include drive system, lubricating system, sealing system and cooling system Deng.In recent years, due to the development of chemical industry, various large chemical plants, the foundation of oil plant, compressor set just become compression and The critical machine of various gases in Chemical Manufacture is conveyed, and occupies extremely important status, due to the mistake of large-scale compressor work Journey is that gas is compressed and conveyed, and is carrying out the conversion of energy always, so to auxiliary system such as lubricating system, sealing System and cooling system etc. require relatively high, the lubricating system especially in compressor, lubrication that can not only reduce the friction of machine And abrasion, while sealing, cooling and the effect for reducing running noise are may also function as, good lubricating condition is that compressor for a long time may be used By the important guarantee of work, compressor lubrication system not only individually can adjust and distribute the fuel delivery of each oil site, and because being equipped with Independent oil pump, fuel tank, cooler and filter etc. can make lubricating oil be adequately cooled and filter, so as to for a long time The cleaning of fluid and relative constant oil temperature, such as patent " CN205225626U " is kept to disclose a kind of CNG compressor sets use Pre-lubrication integrated system, including oil sump, fire-proof motor, pre-lubrication oil pump;Fire-proof motor is installed above oil sump;Anti-explosion electric Machine connects pre-lubrication oil pump, and overflow valve is equipped on pre-lubrication oil pump;The entrance of pre-lubrication oil pump connects oil inlet pipe, into First manual ball valve is equipped with by the first three-way connection on oil pipe line;It is connected to overflow valve in the second three-way connection;In inlet pipe The tail end on road installs the second manual ball valve;Y-type filter is installed between first and third three-way connection;Grease pump goes out Mouth passes through third three-way connection and connects oil return line;Individual event valve is installed on oil return oil pipe line;The end of oil return line passes through 4th three-way connection connects thermostat valve, and each parts and connecting tube interchangeability are good in simple in structure, easy to use, system;Due to The installed capacity of compressor assembly is bigger, and when design must take into consideration appropriate safety coefficient, so the capacity of driving motor can Up to several megawatts, drive motor for compressor installed capacity is relatively high with respect to the rich degree of actual demand, leads to the electricity consumption of compressor Measure bigger, energy consumption is relatively high, adds the power consumption of compressor ancillary equipment, the operation of compressor and maintenance cost compare Height, the burden of enterprise is than heavier.
Invention content
To overcome problems with existing in the prior art, the installed capacity of compressor assembly is bigger, driven compressor Motor installed capacity is relatively high with respect to the rich degree of actual demand, causes the electricity consumption of compressor bigger, and energy consumption is relatively high, then In addition the power consumption of compressor ancillary equipment, the operation of compressor and maintenance cost are relatively high.The utility model provides one Kind of large-scale compressor lubricating system, including fuel tank, driving device, overflow mechanism, cooling device, filter device, decompressor and Lubricating arrangement, it is characterised in that:The driving device includes auxiliary pump group, main pump group and the first oil circuit, the import of the auxiliary pump group It is connected with the outlet of fuel tank, the outlet of the auxiliary pump group is connected with the import of cooling device, the import of the main pump group and fuel tank Outlet be connected, the outlet of the main pump group is connected with the import of cooling device, the import of first oil circuit and auxiliary pump group Outlet is connected, and the outlet of first oil circuit is connected with the import of main pump group, and when lubricating system starts, the auxiliary pump group first opens Dynamic, main pump group is restarted, and auxiliary pump group is stopped, and when lubricating system is shut down, the auxiliary pump group first starts, and main pump group stops, auxiliary Pump group is stopped again.
On this basis, the auxiliary pump group includes motor and screw pump, and the screw pump is driven by motor, from fuel tank interior suction Take fluid.
On this basis, the main pump group pumps for spindle nose, the shaft end of compressor drive shaft is mounted on, by driven compressor.
On this basis, the driving device further includes the first safety valve and the second safety valve, first safety valve Import connects the outlet of main pump group, the oil return opening of the outlet connection connection fuel tank of first safety valve, second safety valve Import connect the outlet of auxiliary pump group, the oil return opening of the outlet connection fuel tank of second safety valve.
On this basis, further include thermostat valve, the thermostat valve is between cooling device and filter device one, the temperature The import of control valve is connected with the outlet of cooling device, and the outlet of the thermostat valve is connected with one import of filter device.
On this basis, further include the second oil circuit, the import of second oil circuit is connected with the import of cooling device, described The outlet of second oil circuit is connected with thermostat valve.
On this basis, further include pressure control device, the pressure control device is located at decompressor and lubricating arrangement Between, the pressure for the fluid to entering lubricating arrangement is sampled.
On this basis, the pressure control device includes first pressure transmitter, second pressure transmitter and third pressure Power transmitter, the pressure value of any two in the first pressure transmitter, second pressure transmitter and third pressure transmitter Reach setting value, then pressure control device is thought to reach setting value.
Compared with prior art, the utility model has the beneficial effects that:
1, by the way of main pump group and the cooperation of auxiliary pump group, auxiliary pump group is driven by motor, and main pump group is installed on the compressor By driven compressor, main pump group is operated when compressor works normally, and auxiliary pump group only works when compressor is switched on and shuts down, greatly The big working time for reducing auxiliary pump, reduce the energy consumption of lubricating system.
2, main when encountering the emergency shutdowns such as complete machine power failure since the installation of main pump group is on the compressor by driven compressor Pump group can follow compressor running down to work together, and enough lubrications are provided for compressor, it is ensured that the secure parking of compressor set with It is the generation of accidents such as to lose lubrication and cause to grind watt to exempt from unit in unexpected shutdown, ensure that the stable operation of system.
3, coordinate pressure control device and thermostat valve, closed-loop control to flow into the temperature and pressure of lubricating arrangement fluid, ensure The stable operation of system.
Description of the drawings
Fig. 1 is the structural schematic diagram of the utility model;
In figure:1, fuel tank, 2, driving device, 21, auxiliary pump group, 22, main pump group, the 23, first oil circuit, the 24, first safety valve, 25, the second safety valve, 3, overflow mechanism, 4, cooling device, 5, filter device, 6, decompressor, 7, thermostat valve, the 71, second oil Road, 8, pressure control device, 81, first pressure transmitter, 82, second pressure transmitter, 83, third pressure transmitter, 9, profit Sliding device
Specific implementation mode
Below in conjunction with drawings and examples, the present invention will be further described in detail.It should be appreciated that this place is retouched The specific embodiment stated only to explain the utility model, is not used to limit the utility model.
As shown in Figure 1, the utility model schematically illustrates a kind of large-scale compressor lubricating system.
The utility model discloses a kind of large-scale compressor lubricating system, as shown in Figure 1, including fuel tank 1, driving device 2, overflowing Flow device 3, cooling device 4, filter device 5, decompressor 6, thermostat valve 7, the second oil circuit 71, pressure control device 8 and lubrication Device 9, the outlet of the import connection fuel tank 1 of driving device 2, the import of the outlet connection cooling device 4 of driving device 2 are cooling The import of the outlet connection thermostat valve 7 of device 4, the import of the outlet connection filter device 5 of thermostat valve 7, the outlet of filter device 5 Connect the import of decompressor 6, the import of the outlet connection lubricating arrangement 9 of decompressor 6, the outlet connection oil of lubricating arrangement 9 The import of the oil return opening of case 1, the second oil circuit 71 is connected with the import of cooling device 4, outlet and 7 phase of thermostat valve of the second oil circuit 71 Even;Driving device 2 includes auxiliary pump group 21, main pump group 22, the first oil circuit 23, the first safety valve 24 and the second safety valve 25, auxiliary pump Group 21 import be connected with the outlet of fuel tank 1, the outlet of auxiliary pump group 21 is connected with the import of cooling device 4, main pump group 22 into Mouthful be connected with the outlet of fuel tank 1, the outlet of main pump group 22 is connected with the import of cooling device 4, the import of the first oil circuit 23 with it is auxiliary The outlet of pump group 21 is connected, and the outlet of the first oil circuit 23 is connected with the import of main pump group 22, the import of the first safety valve 24 and master The outlet of pump group 22 is connected, and the outlet of the first safety valve 24 is connected with the oil return opening of fuel tank 1, the import of the second safety valve 25 with it is auxiliary The outlet of pump group 21 is connected, and the outlet of the second safety valve 25 is connected with the oil return opening of fuel tank 1, the first safety valve 24 and the second safety Valve 25 avoids the system failure from damaging auxiliary pump group 21 and main pump group 22, auxiliary pump group 21 is wrapped for protecting auxiliary pump group 21 and main pump group 22 Motor and screw pump are included, electric motor driven screw pump movement is drawn fluid from fuel tank 1 is interior, provided with a level pressure for lubricating system The fluid of power, main pump group 22 pump for spindle nose, and spindle nose pump is rotated mounted on the shaft end of compressor drive shaft by driven compressor, when When compressor operating, spindle nose pump is driven to rotate together, to make spindle nose pump draw fluid out of fuel tank 1, is provided for lubricating system Fluid with certain pressure, when compressor set starts, auxiliary pump group 21 first starts, and draws fluid from fuel tank 1 is interior, is compressor Enough lubricating oil is provided, and fluid will be full of in 22 spindle nose of main pump group pump by the first oil circuit 23, avoids compressor start When, spindle nose pump is internal not to have fluid dry friction, and damage spindle nose pump, when compressor works normally, spindle nose pump follows compressor to revolve Turn, draws fluid from fuel tank 1 is interior, auxiliary pump group 21 is out of service, pumps using spindle nose and is provided with certain pressure for lubricating system Fluid, when compressor set is shut down, auxiliary pump group 21 starts, and ensures that lubricating system needs the pressure flow of fluid, then compressor Group starts to shut down running down, and after compressor dead halt, auxiliary pump group 21 is out of service;Auxiliary pump group 21 and the cooperation of main pump group 22 make With main pump group 22 is used when compressor works normally, and auxiliary pump group 21 works in compressor start and shutdown, greatly reduces The working time of auxiliary pump group 21 reduces the energy consumption of lubricating system, reduces the operating cost of lubricating system, and main pump group 22 Installation is on the compressor by driven compressor, and when encountering the emergency shutdowns such as complete machine power failure, main pump group 22 can follow compressor lazy Turn to work together, enough lubrications are provided for compressor, it is ensured that the secure parking of compressor set is in order to avoid unit is shutting down suddenly The generation for the accidents such as losing lubrication and cause to grind watt, ensure that the stable operation of system, cooling device 4 be used for system fluid into Row cooling, thermostat valve 7 are used to control the temperature into system inner fluid, and thermostat valve 7 is self-standing temp control valve, and there are two tools Import and one outlet, two imports are separately connected the outlet of the outlet and cooling device 4 of the second oil circuit 71, in the second oil circuit 71 Fluid be the higher fluid of uncolled temperature, the fluid in the outlet of cooling device 4 be it is cooling after the lower fluid of temperature, temperature Temperature of the valve 7 according to setting is controlled, the oil mass of the second oil circuit 71 and cooling device 4 is automatically adjusted, keeps the temperature that thermostat valve 7 exports full Sufficient sets requirement;Pressure control device 8 is between decompressor 6 and lubricating arrangement 9, for entering 9 fluid of lubricating arrangement Pressure controlled, when pressure be less than setting value when, start auxiliary pump group 21 ensure lubricating system in lubricating oil pressure, pressure Force control device 8 includes first pressure transmitter 81, second pressure transmitter 82 and third pressure transmitter 83, and first pressure becomes Device 81, second pressure transmitter 82 and third pressure transmitter 83 is sent to be arranged in parallel, for the pressure to entering 9 fluid of lubricating arrangement Power is sampled, and when the pressure value of any two in three pressure transmitters reaches setting value, then pressure control device 8 is thought to reach To setting value, start auxiliary pump group 21, avoids single first pressure transmitter sampling from error or system pressure fluctuation occur, make auxiliary pump 21 frequent startings of group, influence the stability of system.
This lubricating system is by the way of main pump group and the cooperation of auxiliary pump group, and auxiliary pump group is driven by motor, and main pump group is mounted on It is worked by driven compressor, main pump group when compressor set works normally on compressor, auxiliary pump group is only switched on and stops in compressor It works when machine, greatly reduces the working time of auxiliary pump, reduce the energy consumption of lubricating system simultaneously because main pump group is mounted on By driven compressor on compressor, when encountering the emergency shutdowns such as complete machine power failure, main pump group can follow compressor running down work together Make, enough lubrications are provided for compressor, it is ensured that the secure parking of compressor set is in order to avoid unit in shutdown is suddenly to lose lubrication And the generation of accidents such as cause to grind watt, while coordinating pressure control device and thermostat valve, it is ensured that flow into lubricating arrangement inner fluid Pressure and temperature ensure that the stable operation of system.
The preferred embodiment of the utility model has shown and described in above description, as previously described, it should be understood that this practicality is new Type is not limited to form disclosed herein, is not to be taken as excluding other embodiments, and can be used for various other groups It closes, modification and environment, and by the technology of above-mentioned introduction or related field or can know in the scope of the invention is set forth herein Knowledge is modified.And changes and modifications made by those skilled in the art do not depart from the spirit and scope of the utility model, then all answer In the protection domain of the appended claims for the utility model.

Claims (8)

1. a kind of large-scale compressor lubricating system, including fuel tank (1), driving device (2), overflow mechanism (3), cooling device (4), Filter device (5), decompressor (6) and lubricating arrangement (9), it is characterised in that:The driving device (2) includes auxiliary pump group (21), the import of main pump group (22) and the first oil circuit (23), the auxiliary pump group (21) is connected with the outlet of fuel tank (1), described auxiliary The outlet of pump group (21) is connected with the import of cooling device (4), the outlet phase of the import and fuel tank (1) of the main pump group (22) Even, the outlet of the main pump group (22) is connected with the import of cooling device (4), import and the auxiliary pump group of first oil circuit (23) (21) outlet is connected, and the outlet of first oil circuit (23) is connected with the import of main pump group (22);When lubricating system starts, institute It states auxiliary pump group (21) first to start, main pump group (22) is restarted, and auxiliary pump group (21) is stopped, described auxiliary when lubricating system is shut down Pump group (21) first starts, and main pump group (22) stops, and auxiliary pump group (21) is stopped again.
2. a kind of large-scale compressor lubricating system according to claim 1, it is characterised in that:The auxiliary pump group (21) includes Motor and screw pump, the screw pump are driven by motor, and fluid is drawn from fuel tank (1) is interior.
3. a kind of large-scale compressor lubricating system according to claim 2, it is characterised in that:The main pump group (22) is axis Head pump, is mounted on the shaft end of compressor drive shaft, by driven compressor.
4. a kind of large-scale compressor lubricating system according to claim 3, it is characterised in that:The driving device (2) is also Including the first safety valve (24) and the second safety valve (25), import connection main pump group (22) of first safety valve (24) goes out Mouthful, the import of the oil return opening of the outlet connection connection fuel tank (1) of first safety valve (24), second safety valve (25) connects Connect the outlet of auxiliary pump group (21), the oil return opening of the outlet connection fuel tank (1) of second safety valve (25).
5. a kind of large-scale compressor lubricating system according to claim 4, it is characterised in that:Further include thermostat valve (7), institute It states thermostat valve (7) to be located between cooling device (4) and filter device (5), import and the cooling device (4) of the thermostat valve (7) Outlet be connected, the outlet of the thermostat valve (7) is connected with filter device (5) import.
6. a kind of large-scale compressor lubricating system according to claim 5, it is characterised in that:It further include the second oil circuit (71), the import of second oil circuit (71) is connected with the import of cooling device (4), outlet and the temperature of second oil circuit (71) Valve (7) is controlled to be connected.
7. a kind of large-scale compressor lubricating system according to claim 6, it is characterised in that:It further include pressure control device (8), the pressure control device (8) is located between decompressor (6) and lubricating arrangement (9), for entering lubricating arrangement (9) The pressure of fluid is controlled.
8. a kind of large-scale compressor lubricating system according to claim 7, it is characterised in that:The pressure control device (8) include first pressure transmitter (81), second pressure transmitter (82) and third pressure transmitter (83), the first pressure Transmitter (81), second pressure transmitter (82) and third pressure transmitter (83) are arranged in parallel, the pressure of any two of which Value reaches setting value, then pressure control device (8) is thought to reach setting value.
CN201820001249.8U 2018-01-02 2018-01-02 A kind of large-scale compressor lubricating system Active CN207701324U (en)

Priority Applications (1)

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CN201820001249.8U CN207701324U (en) 2018-01-02 2018-01-02 A kind of large-scale compressor lubricating system

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Application Number Priority Date Filing Date Title
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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110273825A (en) * 2019-06-24 2019-09-24 陕西飞机工业(集团)有限公司 Double pump double oil circuits parallel connection supercharging control method
CN112178437A (en) * 2020-10-09 2021-01-05 宁波丰特机械设备有限公司 Self-adaptive lubricating system for driving motor of centrifugal air compressor

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110273825A (en) * 2019-06-24 2019-09-24 陕西飞机工业(集团)有限公司 Double pump double oil circuits parallel connection supercharging control method
CN112178437A (en) * 2020-10-09 2021-01-05 宁波丰特机械设备有限公司 Self-adaptive lubricating system for driving motor of centrifugal air compressor

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