CN213900675U

CN213900675U - Lubricating system of nitric acid reduction supercharger lubricating oil station

Info

Publication number: CN213900675U
Application number: CN202022654390.8U
Authority: CN
Inventors: 李福明; 陶于练; 孙雄
Original assignee: Chongqing Feixiong Lubricating Hydraulic Equipment Manufacturing Co ltd
Current assignee: Chongqing Feixiong Lubricating Hydraulic Equipment Manufacturing Co ltd
Priority date: 2020-11-16
Filing date: 2020-11-16
Publication date: 2021-08-06
Anticipated expiration: 2030-11-16

Abstract

The utility model discloses a lubricating system of a nitric acid reduction supercharger lubricating oil station, which comprises an oil supply unit and an oil return unit, wherein the oil supply unit comprises a first pipe fitting communicated between an oil tank of the lubricating oil station and a lubricating part to be lubricated of the nitric acid reduction supercharger, a main oil pump arranged at one end of the first pipe fitting, which is close to the oil tank, a first one-way valve arranged on the first pipe fitting, which is close to the position of the main oil pump, a cooler assembly arranged on the first pipe fitting and positioned between the first one-way valve and the lubricating part, an oil filter assembly arranged on the first pipe fitting and positioned between the cooler assembly and the lubricating part, and an emergency oil supplementing mechanism; the emergency oil supplementing mechanism comprises a high-level oil tank, an eleventh valve, a sixth oil flow viewing mirror and a fifth one-way valve, wherein the high-level oil tank is provided with a siphon inlet, an oil return port, an oil supply port and a sewage discharge port.

Description

Lubricating system of nitric acid reduction supercharger lubricating oil station

Technical Field

The utility model relates to a lubricating system of nitric acid reduction booster compressor lubricating oil station.

Background

The lubricating oil station is mainly used for providing lubricating oil for core parts of main equipment such as a centrifugal blower, a compressor unit, a turbocharger, an industrial steam turbine, an industrial large-scale compressor, a centrifugal steam compressor, an industrial fan, an energy-saving environment-friendly main equipment and the like, wherein the core parts need the lubricating oil, and the problems of component loss, short service life and the like caused by the lack of the lubricating oil in the core parts of the main equipment are solved. The lubricating oil station mainly comprises an oil tank and a lubricating system, the oil tank is simply used for accommodating oil, core equipment of main equipment and the oil tank need to be connected through long and complex pipelines and occupy large space, so that the main equipment and the lubricating oil station are very loose and not compact in layout, and pipeline connection and management are not facilitated. Since the lubrication system mainly includes a cooler, an oil filter, and an oil supply line, if the cooler and the oil filter are not stable in operation, the lubrication component is damaged due to oil shortage. In addition, when the conventional lubricating oil station works and sudden situations such as power failure occur suddenly, the lubricating oil is cut off immediately, so that a motor, a lubricating part and the like of the lubricating part are damaged, and the service life is shortened. Therefore, there is a need for a lubrication system of a lubrication station that can stably supply oil for a long period of time, prevent a lubrication component from being damaged, and improve the service life of the lubrication component.

SUMMERY OF THE UTILITY MODEL

To the not enough of above-mentioned prior art, the utility model aims to solve the technical problem that: provided is a lubricating system for a lubricating oil station of a nitric acid reduction supercharger, which can stably supply oil and prevent a lubricating part of the nitric acid reduction supercharger from being damaged.

In order to solve the technical problem, the utility model discloses a technical scheme is: the lubricating system comprises an oil supply unit and an oil return unit, wherein the oil supply unit comprises a first pipe fitting communicated between an oil tank of the lubricating oil station and a lubricating part to be lubricated of the nitric acid reduction supercharger, a main oil pump arranged at one end of the first pipe fitting close to the oil tank, a first one-way valve arranged at a position on the first pipe fitting close to the main oil pump, a cooler assembly arranged at a position on the first pipe fitting between the first one-way valve and the lubricating part, an oil filter assembly arranged at a position on the first pipe fitting between the cooler assembly and the lubricating part and an emergency oil supplementing mechanism; the first pipe fitting comprises a first pipeline, a second pipeline, a third pipeline and a first linkage three-way valve electrically connected with a PLC (programmable logic controller), the cooler assembly comprises a first cooler and a second cooler connected with the first cooler in parallel, the first cooler is connected to the second pipeline, and the second cooler is connected to the third pipeline; the input end of the first pipeline is communicated with the oil tank, and the output end of the first pipeline is communicated with the input end of the first linkage three-way valve; an input end of the second pipeline is communicated with a first output end of the first linkage three-way valve, an output end of the second pipeline is communicated with the lubricating part, an input end of the third pipeline is communicated with a second output end of the first linkage three-way valve, and an output end of the third pipeline is communicated with the lubricating part; the emergency oil supplementing mechanism comprises a high-level oil tank, an eleventh valve, a sixth oil flow viewing mirror and a fifth one-way valve, the high-level oil tank is provided with a siphon inlet, an oil return port, an oil supply port and a drain port, the oil supply port of the high-level oil tank is connected to the position, close to the lubricating part, on the first pipe fitting through a high-level oil pipeline, the oil return port of the high-level oil tank is communicated with the oil tank through a high-level oil return pipeline, the fifth one-way valve is arranged on the high-level oil pipeline to prevent the high-level oil from flowing back into the high-level oil tank, the sixth oil flow view mirror and the eleventh valve are respectively connected with the fifth one-way valve in parallel through an oil flow pipeline and a high-level oil inlet pipeline, and a sixth one-way valve for preventing the high-level oil from flowing into the oil tank through the first pipe fitting is arranged on the first pipe fitting and close to the high-level oil pipeline.

Furthermore, an oil return sight glass is arranged on the high-level oil return pipeline.

The oil tank is characterized by further comprising an energy accumulator, wherein the energy accumulator is provided with an inflation end, an oil inlet end and an oil return end, the inflation end is provided with a first pressure gauge, the oil inlet end of the energy accumulator is communicated with the first pipeline, and the oil return end of the energy accumulator is communicated with the oil tank through an energy accumulator oil return pipeline.

Furthermore, an eleventh ball valve is arranged at the first output end, and a twelfth ball valve and a second pressure gauge are arranged on the energy accumulator oil return pipeline.

The oil charging and exhausting assembly comprises an oil charging pipeline, an exhaust pipeline, a safe oil discharging pipeline and an auxiliary oil pump, wherein the input end of the oil charging pipeline is communicated with the oil tank, the output end of the oil charging pipeline is connected to the first pipeline and is positioned between the first one-way valve and the cooler assembly, and a third one-way valve and a fourth ball valve are sequentially connected in series with one end of the oil charging pipeline, which is far away from the auxiliary oil pump and the oil tank, in the direction far away from the auxiliary oil pump and the oil tank; the input end of the exhaust pipeline is communicated with the joint of the oil charging pipeline and the first pipeline, the output end of the exhaust pipeline is communicated with the oil tank, and seventh throttle orifice plates and eighth valves are arranged on the exhaust pipeline at intervals; the input end of the safe oil drainage pipeline is connected to the position, located between the auxiliary oil pump and the third one-way valve, on the oil filling pipeline, the output end of the safe oil drainage pipeline is communicated with the oil tank, a sixth valve and a seventh valve are sequentially connected onto the safe oil drainage pipeline in series, and a second angle type safety valve is arranged at the position, located between the sixth valve and the seventh valve, on the safe oil drainage pipeline.

Furthermore, the oil-filled exhaust assembly further comprises a fourth bypass pipe, and a ninth valve is arranged on the fourth bypass pipe.

Furthermore, the first pipe further comprises a fourth pipeline and a second linkage three-way valve electrically connected with the PLC, the output ends of the second pipeline and the third pipeline are respectively communicated with the first input end and the second input end of the second linkage three-way valve, the output end of the second linkage three-way valve is communicated with the input end of the fourth pipeline, and the output end of the fourth pipeline is communicated with the lubricating part.

Furthermore, the cooler assembly further comprises a first exhaust oil return assembly and a second exhaust oil return assembly, the first exhaust oil return assembly comprises a first exhaust oil return pipeline connected between the first cooler and the oil tank, a first stop valve arranged on the first exhaust oil return pipeline, a first oil flow viewing mirror and a first throttle orifice plate, and one end of the first exhaust oil return pipeline connected with the first cooler is higher than the oil tank; the second exhaust oil return assembly comprises a second exhaust oil return pipeline connected to the second cooler and between the oil tank, a second stop valve, a second oil flow viewing mirror and a second throttling pore plate which are arranged on the second exhaust oil return pipeline, and the second exhaust oil return pipeline is higher than one end connected with the second cooler and the oil tank.

Further, the cooler assembly further comprises a first balance assembly, the first balance assembly comprises a first balance pipeline, a third throttling hole plate and a first throttling valve, the third throttling hole plate is arranged on the first balance pipeline, the first end of the first balance pipeline is connected to the second pipeline and is located at a position between the first linkage three-way valve and the first cooler, and the second end of the first balance pipeline is connected to the third pipeline and is located at a position between the first linkage three-way valve and the second cooler.

Further, the first pipe further includes a fifth pipe, a sixth pipe, and a third three-way valve electrically connected to the PLC controller, the oil filter assembly includes a first oil filter connected to the fifth pipe and a second oil filter connected to the sixth pipe in parallel, an input end of the third three-way valve is communicated with an output end of the fourth pipe, a first output end of the third three-way valve is communicated with an input end of the fifth pipe, a second output end of the third three-way valve is communicated with an input end of the sixth pipe, and output ends of the fifth pipe and the sixth pipe are communicated with the lubricating member.

The utility model discloses a lubricating system at nitric acid reduction booster compressor lubricating oil station, its stability obtains guaranteeing, is in normal operating condition for a long time, even cooler, oil filter wherein go wrong and also can guarantee normal operating, changes cooler, oil filter and also does not influence the normal operating at this lubricating oil station. Because the lubricating part of the nitric acid reduction supercharger can be continuously supplied with oil, the normal operation of the lubricating part is ensured, more stable lubricating work is provided for the lubricating part, and the lubricating part is protected.

Drawings

Fig. 1 is a schematic diagram of the lubricating system of the lubricating oil station of the nitric acid reduction supercharger of the present invention.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1, the lubricating oil station for the nitric acid reduction supercharger in the lubricating oil station according to the present embodiment is configured to provide lubricating oil for a component to be lubricated (e.g., a gear box) of the nitric acid reduction supercharger, the component to be lubricated 800 of the nitric acid reduction supercharger may be directly mounted on an oil tank of the lubricating oil station, and oil return (i.e., an oil return unit described below) is implemented by opening holes on both a top surface of the oil tank and a bottom surface of the component to be lubricated 800, so that additional pipes are not required to implement oil return, the cost is reduced, the structure is more compact, and the occupied space is smaller. Specifically, the lubricating system comprises an oil supply unit and an oil return unit, wherein the oil supply unit comprises a first pipe fitting communicated between an oil tank of a lubricating oil station and a lubricating part (gear box) 800 to be lubricated of a nitric acid reduction supercharger, a main oil pump 801 arranged at one end of the first pipe fitting close to the oil tank, a first one-way valve 802 arranged at a position on the first pipe fitting close to the main oil pump 801, a cooler assembly arranged at a position on the first pipe fitting between the first one-way valve 802 and the lubricating part 800, an oil filter assembly arranged at a position on the first pipe fitting between the cooler assembly and the lubricating part 800, and an emergency oil supplementing mechanism; the first pipe fitting comprises a first pipe 803, a second pipe 804, a third pipe 805 and a first linkage three-way valve 806 electrically connected with a PLC controller, the cooler assembly comprises a first cooler 807 and a second cooler 808 connected with the first cooler 807 in parallel, the first cooler 807 is connected with the second pipe 804, and the second cooler 808 is connected with the third pipe 805; an input end of the first pipeline 803 is communicated with the oil tank, a second one-way valve is arranged at the input end of the first pipeline, and an output end of the first pipeline 803 is communicated with an input end of the first linkage three-way valve 806 (or a common three-way valve); an input end of the second pipe 804 is communicated with a first output end of the first linkage three-way valve 806, an output end of the second pipe 804 is communicated with the lubricating part 800, an input end of the third pipe 805 is communicated with a second output end of the first linkage three-way valve 806, and an output end of the third pipe 805 is communicated with the lubricating part 800. The emergency oil supplementing mechanism includes a high-level oil tank 883, an eleventh valve 884, a sixth flow mirror 885, and a fifth check valve 886, wherein the high-level oil tank 883 has a siphon port 887, an oil return port 888, an oil supply port 889, and a drain port 890, the oil supply port 889 of the high-level oil tank 883 is connected to the first pipe (seventh pipe 827) at a position close to the lubricating member 800 through a high-level oil pipe 894, the oil return port 888 of the high-level oil tank 883 is connected to the oil tank through a high-level oil return pipe 891, the fifth check valve 886 is disposed on the high-level oil pipe 894 to prevent the high-level oil from flowing back into the high-level oil tank 883, and the sixth and

eleventh valves

885, 884 are connected in parallel to the fifth check valve 886 through an oil pipe 892 and a high-level oil pipe 893, respectively. A sixth check valve 904 for preventing the high-level lubricating oil of the high-level oil tank from flowing back into the oil tank from the first pipe fitting is arranged on the first pipe fitting (seventh pipe) near the position communicated with the high-level oil pipe.

Further, an oil return sight glass is arranged on the high-level oil return pipeline 891.

Preferably, the lubrication system further includes an accumulator 895, the accumulator 895 has a charging end 896, an oil inlet end and an oil return end 898, the charging end 896 is provided with a first pressure gauge 899, the oil inlet end of the accumulator 895 is communicated with the first pipe (the first open pipe 827) through an oil inlet pipe 897, and the oil return end 898 of the accumulator 895 is communicated with the oil tank through an accumulator oil return pipe 900. An eleventh ball valve is arranged at the first output end, and a twelfth ball valve 901 and a second pressure gauge 902 are arranged on the energy accumulator oil return pipeline 900. A thirteenth ball valve 903 is arranged on the oil inlet pipe 897. In this embodiment, the sixth check valve 904 is disposed on the first pipe (the seventh pipe 827) at a position close to the oil inlet pipe 897.

The principle of the high-level fuel tank 883 of the present embodiment is as follows: the lubricating oil pump is started to supply oil to the high-level oil tank 883 (the required time is about 8-10 min), when the high-level oil tank 883 is filled with lubricating oil, the pressure of an oil supply port can reach more than 0.4MPa (set pressure), the opening degree of a ball valve on a bypass pipe is adjusted, and the pressure is gradually reduced to 0.4MPa or the actually required working oil pressure. When the system is in operation, if the power is suddenly lost, the main engine and the lubricating oil station do not work, and at the moment, the high-level oil tank 883 automatically supplies lubricating oil to each lubricating point for about 4 min. The stop operation of the rotating part of the main machine can be ensured. During operation of the lubrication system, the high-level tank 883 is always filled with lubrication oil, and the pressure of the lubrication oil in the high-level tank 883 is equal to the oil supply pressure minus the height of the high-level tank 883. About 2-3L/min of lubricating oil can be seen from an oil flow observer on the overflow pipe to return to the oil tank. When the main engine and the lubricating oil pump are powered off, the check valve at the oil supply port of the oil tank is automatically closed, the lubricating oil in the high-level oil tank 883 is automatically supplied to each lubricating point under the action of the height difference, and at the moment, air is supplemented into the high-level oil tank 883 through the breather, so that the lubricating oil is ensured to be smooth. The high-level oil tank 883 has small volume and small occupied area, and is convenient to install and use. Moreover, a liquid level controller is not needed for control; an electromagnetic control valve is not needed to be arranged on the oil supply pipeline, as long as the lubricating system works, the high-level oil tank 883 is filled with pressure lubricating oil all the time, and the oil product and the oil temperature are consistent with those of the oil tank. When the system stops working, the lubricating oil flows back to the oil tank through all the lubricating points of the main machine, and the system is extremely safe and reliable.

The lubricating system further comprises an oil-filling and air-discharging assembly, the oil-filling and air-discharging assembly comprises an oil filling pipeline 858, an air discharging pipeline 859, a safety oil discharging pipeline 860 and an auxiliary oil pump 861, the input end of the oil filling pipeline 858 is communicated with the oil tank, the output end of the oil filling pipeline 858 is connected to the first pipeline 803 at a position between the first check valve 802 and the cooler assembly, and a third check valve 862 and a fourth ball valve 863 are sequentially connected in series at one end of the oil filling pipeline 858 far away from the auxiliary oil pump 861 and the oil tank in a direction far away from the auxiliary oil pump 861 and the oil tank; an input end of the exhaust pipe 859 is communicated with a connection part of the oil charging pipe 858 and the first pipe 803, an output end of the exhaust pipe 859 is communicated with the oil tank, and a seventh throttling orifice plate 864 and an eighth valve 865 are arranged on the exhaust pipe 859 at intervals; an input end of the safety oil drain pipeline 860 is connected to the oil charging pipeline 858 at a position between the auxiliary oil pump 861 and the third check valve 862, an output end of the safety oil drain pipeline 860 is communicated with the oil tank, a sixth valve 866 and a seventh valve 867 are sequentially connected in series to the safety oil drain pipeline 860, and a second angle-type safety valve 868 is arranged at a position between the sixth valve 866 and the seventh valve 867 on the safety oil drain pipeline 860. Preferably, the oil-filled exhaust assembly further includes a fourth bypass pipe 869, and the ninth valve 870 is disposed on the fourth bypass pipe 869.

Adopt two coolers to realize one with one and prepare's function in this scheme, can be so that the homoenergetic work of lubricating oil station under no matter what the condition, can one of them cooler need be changed, can not influence the normal work of whole lubricating oil station yet. When the lubricating device works, the main oil pump 801 is opened, lubricating oil enters the first linkage three-way valve 806 from the first pipeline 803, then enters one of the coolers for cooling according to selection, and the cooled oil is conveyed to the lubricating part 800 through the corresponding second/third pipelines 805. Before the main oil pump is started, the auxiliary oil pump 861 is started firstly, a seventh throttling pore plate 864 (which can be 1mm in aperture) is arranged on the exhaust pipeline 859, lubricating oil in the oil tank enters the first pipeline from the oil filling pipeline 858, because a first one-way valve is arranged at the front end of the first pipeline, the lubricating oil cannot flow from the first pipeline to the direction of the oil tank and can only flow to the direction of the cooler assembly, meanwhile, the exhaust pipeline 859 is connected at the communication part of the oil filling pipeline 858 and the first pipeline, the seventh throttling pore plate 864 on the exhaust pipeline 859 enables the pressure of the exhaust pipeline 859 to be smaller than the oil force of the first pipeline and the oil filling pipeline 858, so that part of the oil enters the exhaust pipeline 859 and flows to the oil tank, the oil draining and exhausting effects are carried out on the first pipeline, the gas in the first pipeline is exhausted, and the first pipeline and the main oil pump are enabled to operate better. The main oil pump and the auxiliary pump can run simultaneously, lubricating oil in the gear box is constant at a certain set value through the safety valve and the self-operated pressure release valve, the lubricating requirements of the nitric acid reduction superchargers of different embodiments on the lubricating oil can be met, the application range is wide, and the universality is high. It should be understood that although the lubricating oil station is described by taking a nitric acid reduction supercharger as an example in the present embodiment, the present invention is not limited thereto.

In this embodiment, a fifth ball valve is disposed on the first conduit at a location between the first one-way valve and the fourth ball valve 863 (adjacent to the first one-way valve). Thus, when the auxiliary oil pump 861 is started, the first pipe is closed by the fifth ball valve to charge and discharge the oil to and from the first pipe.

In this embodiment, a ninth pipeline 871 is further connected to the first pipeline 803 at a position between the main oil pump 801 and the seventh orifice plate 864, and a tenth valve 872 and a fifth oil flow view mirror 873 are sequentially disposed on the ninth pipeline 871. Preferably, the output end of the exhaust pipe 859 is connected to the first pipe 803 at a section between the tenth valve 872 and the tank, and a fourth check valve 882 is arranged at the input end of the first pipe 803 close to the tank.

Further, the first pipe further includes a fourth pipeline 809 and a second linkage three-way valve 810 electrically connected to the PLC controller, output ends of the second pipeline 804 and the third pipeline 805 are respectively communicated with a first input end and a second input end of the second linkage three-way valve 810, an output end of the second linkage three-way valve 810 is communicated with an input end of the fourth pipeline 809, and an output end of the fourth pipeline 809 is communicated with the lubricating part 800. In the scheme, the second pipeline 804 and the third pipeline 805 are connected to the fourth pipeline 809 through the second linkage three-way valve 810, so that only one pipeline is needed to be connected to the lubricating part 800, the second linkage three-way valve 810 is linked with the first linkage three-way valve 806, when one channel is selected to be communicated by the first linkage three-way valve 806, the second linkage three-way valve 810 is linked with the first linkage three-way valve 806, automatic oil reversing is achieved, manual operation is not needed, reversing is achieved through PLC remote control, and automation is improved.

Further, the cooler assembly further comprises a first exhaust oil return assembly and a second exhaust oil return assembly, the first exhaust oil return assembly comprises a first exhaust oil return pipeline 811 connected between the first cooler 807 and the oil tank, a first stop valve 812 arranged on the first exhaust oil return pipeline 811, a first oil flow mirror 813 and a first orifice 814, and one end of the first exhaust oil return pipeline 811 connected with the first cooler 807 is higher than the oil tank; the second exhaust oil return assembly includes a second exhaust oil return pipe 815 connected between the second cooler 808 and the oil tank, a second stop valve 816, a second oil flow mirror 817, and a second orifice 818 disposed on the second exhaust oil return pipe 815, wherein an end of the second exhaust oil return pipe 815 connected to the second cooler 808 is higher than the oil tank. Each cooler is discharged unnecessary fluid through its exhaust oil return subassembly that corresponds in the oil tank, guarantees the operation of cooler, prevents to block up, further optimizes this lubricating system for this lubricating system is more unobstructed, more smooth, reduces the fault rate.

Further, the cooler assembly further includes a first balance assembly including a first balance duct 819, a third orifice plate 820 provided on the first balance duct 819, and a first throttle 821, a first end of the first balance duct 819 is connected to the second duct 804 at a position between the first three-way linkage valve 806 and the first cooler 807, and a second end of the first balance duct 819 is connected to the third duct 805 at a position between the first three-way linkage valve 806 and the second cooler 808. In the scheme, even if the oil pressure difference caused by the blockage of one cooler is generated, the balance solution can be realized through the scheme, the fault rate is further reduced, and the self-regulation capacity is improved. The throttling orifice plate selects the throttling orifice plates with different apertures according to the requirements of different embodiments. Each cooler of the present embodiment is provided with a blow-down valve.

Further, the first pipe member further includes a fifth pipe 822, a sixth pipe 823 and a third three-way valve 824 electrically connected to the PLC controller, the oil filter assembly includes a first oil filter 825 and a second oil filter 826 connected in parallel thereto, the first oil filter 825 is connected to the fifth pipe 822, the second oil filter 826 is connected to the sixth pipe 823, an input end of the third three-way valve 824 is communicated with an output end of the fourth pipe 809, a first output end of the third three-way valve 824 is communicated with an input end of the fifth pipe 822, a second output end of the third three-way valve 824 is communicated with an input end of the sixth pipe 822, and output ends of the fifth pipe 822 and the sixth pipe 823 are communicated with the lubricating member 800. The first pipe further comprises a seventh pipeline 827 and a fourth linkage three-way valve 828 electrically connected with the PLC controller, output ends of the fifth pipeline 822 and the sixth pipeline 823 are respectively communicated with a first input end and a second input end of the fourth linkage three-way valve 828, an output end of the fourth linkage three-way valve is communicated with an input end of the seventh pipeline 827, and an output end of the seventh pipeline 827 is communicated with the lubricating component 800. Two oil filters are adopted, when one of the two oil filters is in an abnormal state, the other oil filter can be automatically switched to through the third linkage three-way valve 824 and the third linkage three-way valve 824, the lubricating oil station is ensured to be in a normal working state all the time, the lubricating part 800 of the nitric acid reduction supercharger, which is caused by the unstable operation of the lubricating oil station, is prevented from being starved, and the problems that the lubricating part 800 is aged, damaged, the service life is short and the like due to starving are further prevented.

The oil filter assembly further comprises a third exhaust oil return assembly and a fourth exhaust oil return assembly, the third exhaust oil return assembly comprises a third exhaust oil return pipeline 829 connected between the first oil filter 825 and the oil tank, a third stop valve 830 arranged on the third exhaust oil return pipeline 829, a third oil sight glass 831 and a fourth orifice plate 832, and one end of the third exhaust oil return pipeline 829 connected with the first oil filter 825 is higher than the oil tank; the fourth exhaust return assembly includes a fourth exhaust return pipe 833 connected between the second oil filter 826 and the oil tank, a fourth shutoff valve 834 provided in the fourth exhaust return pipe 833, a fourth oil-flow mirror 835, and a fifth orifice 836, and one end of the fourth exhaust return pipe 833 connected to the second oil filter 826 is higher than the oil tank. And the third exhaust oil return assembly and the fourth exhaust oil return assembly respectively exhaust oil and gas from the two oil filters, so that the oil filters are prevented from being blocked. The lubricating system is further optimized, so that the lubricating system is smoother and smoother, and the failure rate is reduced.

Further, the oil filter assembly further includes a second balance assembly including a second balance pipe 837, a sixth orifice 838 provided on the second balance pipe 837, and a second throttle valve 839, a first end of the second balance pipe 837 is connected to the fifth pipe 822 at a position between the third three-way valve 824 and the first oil filter 825, and a second end of the second balance pipe 837 is connected to the sixth pipe 823 at a position between the third three-way valve 824 and the second oil filter 826.

Further, the lubricating system of nitric acid reduction booster compressor lubricating oil station of this embodiment still includes a first pressure regulating subassembly, first pressure regulating subassembly is including locating first ball valve 840, second ball valve 841 on the seventh pipeline 827, locating self-operated relief valve 842 (open in normal open type), a first bypass pipe 843 between first ball valve 840 and the second ball valve 841 and locating fifth stop valve 844 on the first bypass pipe 843. The sampling end of the self-operated pressure reducing valve 842 is communicated with a seventh pipeline 827. When the first ball valve 840 and the second ball valve 841 are closed, the fifth stop valve 844 can be manually controlled, and if the fifth stop valve 844 is completely closed, the pressure is highest, so that the angle type safety valve is opened, and the oil supply amount is zero. If the fifth stop valve is fully open, the pressure is lowest and the flow is highest, so that the fifth stop valve can be adjusted to a reasonable pressure or flow.

The lubricating system of the nitric acid reduction supercharger lubricating oil station further comprises a second pressure regulating assembly, wherein the second pressure regulating assembly comprises a third bypass pipeline 845, a sixth stop valve 846, a self-operated pressure relief valve 847, a third ball valve 848, an auxiliary replacement pipeline 849, a fourth valve 850 and a fifth valve 851, one end of the self-operated pressure relief pipeline is connected with one section, positioned between the sixth stop valve 846 and the first linkage three-way valve, of the third pipeline 845, one end of the third pipeline is close to one end of the first pipeline, the other end of the third pipeline is communicated with the oil tank, the sixth stop valve 846 is arranged on the third pipeline 845, the sixth stop valve 846 is arranged on the third pipeline, the other end of the third pipeline is connected with one section of the oil tank, one end of the auxiliary replacement pipeline 849 is connected to a section of the third bypass pipeline 845, which is located between the self-operated pressure relief pipeline and the first linkage three-way valve, the other end of the auxiliary replacement pipeline 849 is connected to a section of the third bypass pipeline 845, which is located between the self-operated pressure relief pipeline and the oil tank, the fourth valve 850 and the fifth valve 851 are connected in series to the auxiliary replacement pipeline 849, and the connection end of the self-operated pressure relief valve 847 is connected to a section of the auxiliary replacement pipeline 849, which is located between the fourth valve 850 and the fifth valve 851.

In this embodiment, the first pipe further includes an eighth pipe 852 having one end communicating with a section of the first pipe 803 between the first check valve 802 and the main oil pump 801 and the other end communicating with the oil tank, a first valve 853 and a second valve 854 provided on the eighth pipe 852, a first angle relief valve 855 provided between the first valve 853 and the second valve 854, and a second bypass pipe 856, and a third valve 857 provided on the second bypass pipe 856. One end of the second bypass pipe 856 communicates with one end of the eighth conduit 852, and the other end communicates with the other end of the eighth conduit 852. Thus, when a problem occurs in the lubricating station, the first angular relief valve 855 may be opened to drain oil, and when a problem occurs in the first angular relief valve 855, the first and

second valves

853 and 854 may be closed, and the third valve 857 on the second bypass pipe 856 may be opened.

In this embodiment, the temperature adjustment device further includes a temperature adjustment assembly, the temperature adjustment assembly includes a first temperature adjustment pipe 874, a second temperature adjustment pipe 875, and a self-operated temperature control valve 876, an input end of the first temperature adjustment pipe 874 is communicated with an end of the first pipe close to the cooler assembly, an output end of the first temperature adjustment pipe 874 is communicated with a first input end of the self-operated temperature control valve 876, a second input end of the self-operated temperature control valve 876 is communicated with an output end of the fourth pipe 809, and an output end of the self-operated temperature control valve 876 is communicated with an input end of the third linkage three-way valve 824 through the second temperature adjustment pipe 875.

Further, the temperature adjusting assembly further comprises a sixth ball valve 877, a seventh ball valve 878, an eighth ball valve 879, a ninth ball valve 880 and a tenth ball valve 881, the first temperature adjusting pipe 874 has a first output end and a second output end, the first output end of the first temperature adjusting pipe 874 is communicated with the first input end of the self-operated temperature control valve 876 through the sixth ball valve 877, and the second output end of the first temperature adjusting pipe 874 is communicated with the second temperature adjusting pipe 875 through the seventh ball valve 878. The fourth pipeline 809 is provided with a first output end and a second output end, the first output end of the fourth pipeline 809 is communicated with the second input end of the self-operated temperature control valve 876 through an eighth ball valve 879, and the second output end of the fourth pipeline 809 is communicated with the second temperature adjusting pipeline 875 through a ninth ball valve 880. The tenth ball valve 881 is disposed on one end of the second temperature adjusting pipe 875 close to the output end of the self-operated temperature control valve 876. The self-operated temperature control valve 876 is electrically connected with the PLC, and the automatic temperature adjustment of the lubricating oil is realized through the self-operated temperature control valve 876, the first temperature adjustment pipeline 874 and the second temperature adjustment pipeline 875. Through the sixth to tenth ball valves 881, when the self-operated temperature control valve 876 goes wrong or is replaced, the corresponding ball valve can be opened and closed to realize temporary temperature adjustment, thereby ensuring that the lubricating oil station is in a normal working state at any time.

The lubricating system of this embodiment, its stability obtains guaranteeing, is in normal operating condition for a long time, and the normal operating can also be guaranteed to trouble emergence such as cooler, oil filter wherein owing to can be continuously to the lubricated part 800 oil feed of nitric acid reduction booster compressor, guarantee lubricated part 800's normal operating, provide more stable lubricated work to lubricated part 800, protection lubricated part 800.

The above is only the embodiment of the present invention, not the limitation of the patent scope of the present invention, all the equivalent structures or equivalent processes that are used in the specification and the attached drawings or directly or indirectly applied to other related technical fields are included in the patent protection scope of the present invention.

Claims

1. The utility model provides a lubricating system of nitric acid reduction booster compressor lubricating oil station, includes fuel feeding unit and oil return unit, its characterized in that: the oil supply unit comprises a first pipe fitting communicated between an oil tank of a lubricating oil station and a lubricating part to be lubricated of the nitric acid reduction supercharger, a main oil pump arranged at one end, close to the oil tank, of the first pipe fitting, a first check valve arranged at a position, close to the main oil pump, of the first pipe fitting, a cooler assembly arranged at a position, located between the first check valve and the lubricating part, of the first pipe fitting, an oil filter assembly arranged at a position, located between the cooler assembly and the lubricating part, of the first pipe fitting, and an emergency oil supplementing mechanism; the first pipe fitting comprises a first pipeline, a second pipeline, a third pipeline and a first linkage three-way valve electrically connected with a PLC (programmable logic controller), the cooler assembly comprises a first cooler and a second cooler connected with the first cooler in parallel, the first cooler is connected to the second pipeline, and the second cooler is connected to the third pipeline; the input end of the first pipeline is communicated with the oil tank, and the output end of the first pipeline is communicated with the input end of the first linkage three-way valve; an input end of the second pipeline is communicated with a first output end of the first linkage three-way valve, an output end of the second pipeline is communicated with the lubricating part, an input end of the third pipeline is communicated with a second output end of the first linkage three-way valve, and an output end of the third pipeline is communicated with the lubricating part; the emergency oil supplementing mechanism comprises a high-level oil tank, an eleventh valve, a sixth oil flow viewing mirror and a fifth one-way valve, the high-level oil tank is provided with a siphon inlet, an oil return port, an oil supply port and a drain port, the oil supply port of the high-level oil tank is connected to the position, close to the lubricating part, on the first pipe fitting through a high-level oil pipeline, the oil return port of the high-level oil tank is communicated with the oil tank through a high-level oil return pipeline, the fifth one-way valve is arranged on the high-level oil pipeline to prevent the high-level oil from flowing back into the high-level oil tank, the sixth oil flow view mirror and the eleventh valve are respectively connected with the fifth one-way valve in parallel through an oil flow pipeline and a high-level oil inlet pipeline, and a sixth one-way valve for preventing the high-level oil from flowing into the oil tank through the first pipe fitting is arranged on the first pipe fitting and close to the high-level oil pipeline.

2. The lubrication system of a nitric acid reduction supercharger lubrication oil station as claimed in claim 1, wherein: and an oil return sight glass is arranged on the high-level oil return pipeline.

3. The lubrication system of a nitric acid reduction supercharger lubrication oil station as claimed in claim 1, wherein: the energy accumulator is provided with an inflation end, an oil inlet end and an oil return end, the inflation end is provided with a first pressure gauge, the oil inlet end of the energy accumulator is communicated with the first pipeline, and the oil return end of the energy accumulator is communicated with the oil tank through an energy accumulator oil return pipeline.

4. The lubrication system of a nitric acid reduction supercharger lubrication oil station as claimed in claim 3, wherein: an eleventh ball valve is arranged at the first output end, and a twelfth ball valve and a second pressure gauge are arranged on the energy accumulator oil return pipeline.

5. The lubrication system of a nitric acid reduction supercharger lubrication oil station according to any one of claims 1 to 4, wherein: the oil charging and exhausting assembly comprises an oil charging pipeline, an exhaust pipeline, a safe oil discharging pipeline and an auxiliary oil pump, wherein the input end of the oil charging pipeline is communicated with the oil tank, the output end of the oil charging pipeline is connected to the first pipeline and is positioned between the first one-way valve and the cooler assembly, and a third one-way valve and a fourth ball valve are sequentially connected in series with one end of the oil charging pipeline, which is far away from the auxiliary oil pump and the oil tank, in the direction of far away from the auxiliary oil pump and the oil tank; the input end of the exhaust pipeline is communicated with the joint of the oil charging pipeline and the first pipeline, the output end of the exhaust pipeline is communicated with the oil tank, and seventh throttle orifice plates and eighth valves are arranged on the exhaust pipeline at intervals; the input end of the safe oil drainage pipeline is connected to the position, located between the auxiliary oil pump and the third one-way valve, on the oil filling pipeline, the output end of the safe oil drainage pipeline is communicated with the oil tank, a sixth valve and a seventh valve are sequentially connected onto the safe oil drainage pipeline in series, and a second angle type safety valve is arranged at the position, located between the sixth valve and the seventh valve, on the safe oil drainage pipeline.

6. The lubrication system of a nitric acid reduction supercharger lubrication oil station as set forth in claim 5, wherein: the oil-filled exhaust assembly further comprises a fourth bypass pipe, and a ninth valve is arranged on the fourth bypass pipe.

7. The lubrication system of a nitric acid reduction supercharger lubrication oil station as set forth in claim 5, wherein: the first pipe fitting further comprises a fourth pipeline and a second linkage three-way valve electrically connected with the PLC, the output ends of the second pipeline and the third pipeline are communicated with the first input end and the second input end of the second linkage three-way valve respectively, the output end of the second linkage three-way valve is communicated with the input end of the fourth pipeline, and the output end of the fourth pipeline is communicated with the lubricating part.

8. The lubrication system for a nitric acid reduction supercharger lubrication oil station as claimed in claim 7, wherein: the cooler assembly further comprises a first exhaust oil return assembly and a second exhaust oil return assembly, the first exhaust oil return assembly comprises a first exhaust oil return pipeline connected between the first cooler and the oil tank, a first stop valve arranged on the first exhaust oil return pipeline, a first oil flow viewing mirror and a first throttle orifice plate, and one end of the first exhaust oil return pipeline connected with the first cooler is higher than the oil tank; the second exhaust oil return assembly comprises a second exhaust oil return pipeline connected to the second cooler and between the oil tank, a second stop valve, a second oil flow viewing mirror and a second throttling pore plate which are arranged on the second exhaust oil return pipeline, and the second exhaust oil return pipeline is higher than one end connected with the second cooler and the oil tank.

9. The lubrication system for a nitric acid reduction supercharger lubrication oil station as claimed in claim 8, wherein: the cooler assembly further comprises a first balance assembly, the first balance assembly comprises a first balance pipeline, a third throttling hole plate and a first throttling valve, the third throttling hole plate and the first throttling valve are arranged on the first balance pipeline, the first end of the first balance pipeline is connected to the second pipeline and located at a position between the first linkage three-way valve and the first cooler, and the second end of the first balance pipeline is connected to the third pipeline and located at a position between the first linkage three-way valve and the second cooler.

10. The lubrication system for a nitric acid reduction supercharger lubrication oil station of claim 9, wherein: the first tubular also includes a fifth conduit, a sixth conduit, and a third three-way valve electrically connected to the PLC controller, the oil filter assembly including a first oil filter connected to the fifth conduit, a second oil filter connected to the sixth conduit in parallel, an input of the third three-way valve in communication with an output of the fourth conduit, a first output of the third three-way valve in communication with an input of the fifth conduit, a second output of the third three-way valve in communication with an input of the sixth conduit, and outputs of the fifth and sixth conduits in communication with the lubrication feature.