CN218178570U - System for preventing backup pump of lubricating oil station from freezing - Google Patents
System for preventing backup pump of lubricating oil station from freezing Download PDFInfo
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- CN218178570U CN218178570U CN202222235080.1U CN202222235080U CN218178570U CN 218178570 U CN218178570 U CN 218178570U CN 202222235080 U CN202222235080 U CN 202222235080U CN 218178570 U CN218178570 U CN 218178570U
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Abstract
The utility model belongs to the technical field of the pump congeals that prevents frostbite, concretely relates to prevent lubricating oil station stand-by pump congeals system. Prevent lubricating oil station stand-by pump congeals system by freezing, including the lubricating oil station oil tank, fixed mounting has main oil pump and auxiliary oil pump on the lubricating oil station oil tank, main oil pump fixedly connected with main oil pump export return line, main oil pump export return line and auxiliary oil pump's entrance connection, auxiliary oil pump export return line of exit end fixedly connected with auxiliary oil pump, auxiliary oil pump export return line is connected with the lubricating oil station oil tank, the exit end fixed mounting of lubricating oil station oil tank has lubricating oil pump export safety valves, be provided with the return line backward flow window on the auxiliary oil pump export return line. The utility model provides a prevent freezing system of reserve pump in lubricating oil station sets up the backward flow line through setting up the return line on the main oil pump of lubricating oil station oil tank and assisting the oil pump, prevents the occurence of failure that freezing of lubricating oil caused.
Description
Technical Field
The utility model belongs to the technical field of the pump congeals that prevents frostbite, concretely relates to prevent lubricating oil station stand-by pump congeals system.
Background
In the fields of petrochemical industry and metallurgy, a lubricating oil station system of a compressor or a turbine unit is mainly used for lubricating a unit bearing and controlling oil, the lubricating oil system is a key system related to unit safety and no accident, and even if oil supply is interrupted for a short time during the operation of the unit, serious equipment accidents can be caused. The lubricating oil station sets up main and auxiliary oil pump self-starting system usually, when the main oil pump breaks down and leads to lubricating oil pressure to descend, the chain automatic start of auxiliary oil pump through electricity and instrument guarantees that unit lubricating oil pressure and lubricating oil flow satisfy unit operating condition. Under the extreme cold weather in the north, because the interior lubricating oil of auxiliary oil pump and front end pipeline is in "blind spot", the lubricating oil temperature is lower, lubricating oil viscosity increases, when auxiliary oil pump self-starting, because auxiliary oil pump entry lubricating oil viscosity is great, can cause auxiliary oil pump start-up vibration big, it is serious, can cause auxiliary oil pump start-up load big, auxiliary oil pump motor starting current is too big, cause auxiliary oil pump start-up not to get up or the motor burns out, thereby cause the unit accident of shutting down, and the jam that cold weather caused also can't be foreseen in advance, can only after the trouble, judge in the maintenance process, but the fault occurrence is irreversible.
SUMMERY OF THE UTILITY MODEL
The utility model aims to overcome the above-mentioned defect that prior art exists, provide a prevent lubricating oil station stand-by pump congeals system, set up the return line and assist the oil pump to set up the return line through the main oil pump at lubricating oil station oil tank on, prevent the occurence of failure that the congeals and lead to the fact of lubricating oil.
The utility model discloses an adopt following technical scheme to realize:
prevent lubricating oil station reserve pump congeals system by freezing, including the lubricating oil station oil tank, fixed mounting has main oil pump and assistance oil pump on the lubricating oil station oil tank, main oil pump fixedly connected with main oil pump export return line, main oil pump export return line and the entrance connection who assists the oil pump, the export end fixedly connected with of assistance oil pump assists oil pump export return line, assist oil pump export return line and lubricating oil station oil tank connection, the exit end fixed mounting of lubricating oil station oil tank has lubricating oil pump export safety valves, be provided with the return line backward flow window on the assistance oil pump export return line.
Preferably, a main oil pump outlet check valve and a main oil pump outlet stop valve are sequentially arranged on a pipeline of a main oil pump outlet.
Preferably, a return line stop valve, a return line self-operated pressure reducing regulating valve and a pressure gauge are sequentially arranged on the return line of the outlet of the main oil pump. The sequence is mainly based on the flowing direction of the lubricating oil.
Preferably, the return line self-operated pressure reducing regulating valve is provided with a return line self-operated pressure reducing regulating valve secondary line, and the return line self-operated pressure reducing regulating valve secondary line is provided with a secondary line stop valve. One end of the secondary line of the return line self-operated pressure reducing regulating valve is fixedly connected above the return line self-operated pressure reducing regulating valve, the other end of the secondary line of the return line self-operated pressure reducing regulating valve is fixedly connected behind the return line self-operated pressure reducing regulating valve and in front of the return line stop valve, the secondary line stop valve on the right side of the return line self-operated pressure reducing regulating valve is fixedly installed on the secondary line of the return line self-operated pressure reducing regulating valve, and the lubricating oil pressure after the pressure reduction of the return line self-operated pressure reducing regulating valve is lower than the tripping pressure of the outlet safety valve of the lubricating oil pump. The self-operated pressure reducing regulating valve is used for pressure regulation after the valve, a field pressure gauge is arranged behind the self-operated pressure reducing regulating valve to observe the pressure of the lubricating oil after pressure reduction, and the pressure of the lubricating oil after pressure reduction of the self-operated pressure reducing regulating valve is set to be lower than the tripping pressure of a safety valve at the outlet of the lubricating oil pump.
Preferably, an auxiliary oil pump inlet root valve and an auxiliary oil pump inlet filter are sequentially arranged on a pipeline connecting the main oil pump outlet return line and the inlet end of the auxiliary oil pump.
Preferably, an outlet pipeline of the auxiliary oil pump is provided with an auxiliary oil pump outlet check valve. The auxiliary oil pump outlet check valve is disposed on the line after the intersection of the auxiliary oil pump outlet line and the auxiliary oil pump outlet return line. And the return line are provided with pressure reducing valves or stop valves, so that the functions of reducing pressure of lubricating oil and communicating and cutting off pipelines are achieved.
Preferably, a return line stop valve is arranged on the return line of the outlet of the auxiliary oil pump.
Preferably, the outlet end of the lubricating oil station oil tank is connected with the outlet end of the main oil pump and the outlet end of the auxiliary oil pump.
The utility model discloses a prevent lubricating oil station stand-by pump congealing system, draw forth a main oil pump export return line at lubricating oil station main oil pump export pipeline and insert auxiliary oil pump root valve or entry filter front end, draw forth an auxiliary oil pump export return line to lubricating oil station oil tank in the auxiliary oil pump export, play lubricating oil decompression and pipeline UNICOM, the effect of cuting, make the auxiliary oil pump entry root valve of auxiliary oil pump and front end pipeline, lubricating oil circulation gets up in the auxiliary oil pump entry filter, make auxiliary oil pump and front end pipeline auxiliary oil pump entry root valve, the lubricating oil temperature is unanimous with lubricating oil temperature in the lubricating oil station oil tank in the auxiliary oil pump entry filter, thereby improve auxiliary oil pump and front end pipeline auxiliary oil pump entry root valve, the lubricating oil temperature in auxiliary oil pump entry filter, reduce auxiliary oil pump and front end pipeline auxiliary oil pump entry root valve, the viscosity of lubricating oil in the auxiliary oil pump entry filter, thereby avoid auxiliary oil pump self-starting, auxiliary oil pump start-up vibration is big or auxiliary oil pump motor starts the lubrication current too big, improve compressor unit oil system stability.
The utility model has the advantages that:
(1) Prevent lubricating oil station stand-by pump congeals system, the small investment, take effect soon, the demand of the multiple lubricating oil station congeals of adaptable market prevention.
(2) Prevent lubricating oil station stand-by pump congeals system, be provided with the backward flow line backward flow window, be convenient for observe, through patrolling and examining the interior lubricating oil backward flow condition of inspection backward flow window, can prevent effectively that lubricating oil temperature is low or congeals under the extremely cold weather of winter in the auxiliary oil pump and its front end pipeline.
(3) Prevent lubricating oil station stand-by pump congeals system, the lubricating oil temperature that makes each position differs little, reduces the congeals phenomenon of lubricating oil, reduces the emergence of accident, productivity gain reduces cost of maintenance.
Drawings
FIG. 1 is a schematic structural diagram of a system for preventing a backup pump of a lubricating oil station from freezing according to the present invention;
in the figure: 1. a lubricating oil station oil tank; 2. a main oil pump; 21. a main oil pump outlet check valve; 22. a main oil pump outlet stop valve; 3. an auxiliary oil pump; 31. an auxiliary oil pump inlet root valve; 32. an auxiliary oil pump inlet filter; 33. an auxiliary oil pump outlet check valve; 4. a main oil pump outlet return line; 41. a return line shut-off valve; 42. a return line self-operated pressure reducing regulating valve; 421. a return line self-operated pressure reducing regulating valve secondary line; 422. a secondary line stop valve; 43. a pressure gauge; 5. an auxiliary oil pump outlet return line; 51. a return line stop valve; 52. a return line return window; 6. lubricating oil pump export safety valves.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention clearer, the technical solutions of the present invention will be described in detail below. It is to be understood that the disclosed embodiments are merely exemplary of the invention, and are not intended to limit the invention to the precise embodiments disclosed. Based on the embodiments of the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
As shown in fig. 1, prevent lubricating oil station reserve pump congealing system, including lubricating oil station oil tank 1, fixed mounting has main oil pump 2 and supplementary oil pump 3 on the lubricating oil station oil tank 1, 2 fixedly connected with main oil pump export return line 4 of main oil pump, main oil pump export return line 4 and the entrance connection of assisting oil pump 3, the export end fixedly connected with of assisting oil pump 3 assists oil pump export return line 5, assist oil pump export return line 5 and be connected with lubricating oil station oil tank 1, the exit end fixed mounting of lubricating oil station oil tank 1 has lubricating oil pump export safety valves 6, be provided with return line backward flow window 52 on the supplementary oil pump export return line 5.
A main oil pump outlet check valve 21 and a main oil pump outlet stop valve 22 are sequentially arranged on a pipeline at the outlet of the main oil pump 2.
A return line stop valve 41, a return line self-operated pressure reducing regulating valve 42 and a pressure gauge 43 are sequentially arranged on the main oil pump outlet return line 4. The sequence is mainly according to the flowing direction of the lubricating oil.
The return line self-operated pressure reducing regulating valve 42 is provided with a return line self-operated pressure reducing regulating valve secondary line 421, and the return line self-operated pressure reducing regulating valve secondary line 421 is provided with a secondary line stop valve 422. One end of the return line self-operated pressure reducing regulating valve secondary line 421 is fixedly connected above the return line self-operated pressure reducing regulating valve 42, the other end of the return line self-operated pressure reducing regulating valve secondary line 421 is fixedly connected behind the return line self-operated pressure reducing regulating valve 42 and in front of the return line stop valve 41, the secondary line stop valve 422 on the right side of the return line self-operated pressure reducing regulating valve 42 is fixedly installed on the return line self-operated pressure reducing regulating valve secondary line 421, and the lubricating oil pressure after the pressure reduction of the return line self-operated pressure reducing regulating valve 42 is lower than the tripping pressure of the lubricating oil pump outlet safety valve 6. The self-operated pressure reducing regulating valve 42 is used for pressure regulation after the valve, a field pressure gauge 43 is arranged behind the self-operated pressure reducing regulating valve 42 to observe the pressure of the lubricating oil after pressure reduction, and the pressure of the lubricating oil after pressure reduction of the self-operated pressure reducing regulating valve 42 is set to be lower than the take-off pressure of a safety valve 6 at the outlet of the lubricating oil pump.
An auxiliary oil pump inlet root valve 31 and an auxiliary oil pump inlet filter 32 are sequentially arranged on a pipeline connecting the main oil pump outlet return line 4 and the inlet end of the auxiliary oil pump 3.
An auxiliary oil pump outlet check valve 33 is provided on an outlet line of the auxiliary oil pump 3. The setting of the auxiliary oil pump outlet check valve 33 is set on a line after the intersection of the outlet line of the auxiliary oil pump 3 and the auxiliary oil pump outlet return line 5. And the return line are provided with pressure reducing valves or stop valves to play a role in reducing pressure of lubricating oil and communicating and cutting off the pipeline.
A return line stop valve 51 is provided on the auxiliary oil pump outlet return line 5.
The outlet end of the lubricating oil station oil tank 1 is connected with the outlet end of the main oil pump 2 and the outlet end of the auxiliary oil pump 3.
The system for preventing the backup pump of the lubricating oil station from freezing is characterized in that a main oil pump outlet return line is led out from a main oil pump outlet pipeline of the lubricating oil station and is connected with the root valve of the auxiliary oil pump or the front end of the inlet filter, an auxiliary oil pump outlet return line is led out from an auxiliary oil pump outlet to an oil tank of the lubricating oil station, and the effects of pressure reduction, pipeline communication and cutting of lubricating oil are achieved, so that the auxiliary oil pump and the auxiliary oil pump inlet root valve of the front end pipeline of the auxiliary oil pump and the lubricating oil in the auxiliary oil pump inlet filter circulate, the temperature of the lubricating oil in the auxiliary oil pump and the front end pipeline auxiliary oil pump inlet root valve and the auxiliary oil pump inlet filter of the auxiliary oil pump are consistent with the temperature of the lubricating oil in the oil tank of the lubricating oil station, the temperature of the auxiliary oil pump and the lubricating oil in the auxiliary oil pump inlet filter of the auxiliary oil pump is increased, the temperature of the lubricating oil in the auxiliary oil pump and the front end pipeline auxiliary oil pump inlet root valve and the auxiliary oil pump inlet filter is reduced, and the viscosity of the lubricating oil in the auxiliary oil pump inlet filter of the auxiliary oil pump, and the auxiliary oil pump inlet filter are avoided, the auxiliary oil pump has large starting vibration or the overlarge starting current of the auxiliary oil pump motor when the auxiliary oil pump is avoided, and the stability of the lubricating oil system of the compressor unit is improved.
Of course, the foregoing is merely exemplary of the present invention and should not be construed as limiting the scope of the present invention. The present invention is not limited to the above examples, and the technical field of the present invention is equivalent to the changes and improvements made in the actual range of the present invention, which should be attributed to the patent coverage of the present invention.
Claims (7)
1. The utility model provides a prevent lubricating oil station backup pump congeals system which characterized in that: including lubricating oil station oil tank (1), fixed mounting has main oil pump (2) and assists oil pump (3) on lubricating oil station oil tank (1), main oil pump (2) fixedly connected with main oil pump export return line (4), main oil pump export return line (4) and the entrance connection of assisting oil pump (3), the exit end fixedly connected with of assisting oil pump (3) assists oil pump export return line (5), it is connected with lubricating oil station oil tank (1) to assist oil pump export return line (5), the exit end fixed mounting of lubricating oil station oil tank (1) has lubricating oil pump export safety valves (6), be provided with return line backward flow window (52) on assisting oil pump export return line (5).
2. The system for preventing backup pump freezing in a lubrication station of claim 1, wherein: a main oil pump outlet check valve (21) and a main oil pump outlet stop valve (22) are sequentially arranged on a pipeline at the outlet of the main oil pump (2).
3. The system of claim 1, wherein the system further comprises: a return line stop valve (41), a return line self-operated pressure reducing regulating valve (42) and a pressure gauge (43) are sequentially arranged on the main oil pump outlet return line (4).
4. The system of claim 3, wherein the system further comprises: a return line self-operated pressure reducing regulating valve secondary line (421) is arranged on the return line self-operated pressure reducing regulating valve (42), and a secondary line stop valve (422) is arranged on the return line self-operated pressure reducing regulating valve secondary line (421).
5. The system for preventing backup pump freezing in a lubrication station of claim 1, wherein: an auxiliary oil pump inlet root valve (31) and an auxiliary oil pump inlet filter (32) are sequentially arranged on a pipeline connecting the main oil pump outlet return line (4) and the inlet end of the auxiliary oil pump (3).
6. The system of claim 1, wherein the system further comprises: an outlet pipeline of the auxiliary oil pump (3) is provided with an auxiliary oil pump outlet check valve (33).
7. The system of claim 1, wherein the system further comprises: a return line stop valve (51) is arranged on the return line (5) at the outlet of the auxiliary oil pump.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222235080.1U CN218178570U (en) | 2022-08-24 | 2022-08-24 | System for preventing backup pump of lubricating oil station from freezing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222235080.1U CN218178570U (en) | 2022-08-24 | 2022-08-24 | System for preventing backup pump of lubricating oil station from freezing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218178570U true CN218178570U (en) | 2022-12-30 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222235080.1U Active CN218178570U (en) | 2022-08-24 | 2022-08-24 | System for preventing backup pump of lubricating oil station from freezing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218178570U (en) |
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2022
- 2022-08-24 CN CN202222235080.1U patent/CN218178570U/en active Active
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