CN201221669Y

CN201221669Y - Lubricating oil pump

Info

Publication number: CN201221669Y
Application number: CNU2008200245494U
Authority: CN
Inventors: 王庆怀
Original assignee: Individual
Current assignee: Individual
Priority date: 2008-06-25
Filing date: 2008-06-25
Publication date: 2009-04-15
Anticipated expiration: 2018-06-25

Abstract

The utility model relates to a lubricating oil pump which belongs to the field of lubricating and pressure holding devices, in particular to a lubricating and pressure holding device of a mechanical seal device, which comprises a pump and pipelines. The utility model is characterized in that the lubricating and pressure holding device also comprising a pressure holding device and an oil tank; wherein, the oil tank is connected with the pump through the pipelines; the pump is connected with the pressure holding device through the pipelines; and the pressure holding device is connected with the oil tank through the pipelines. The lubricating and pressure holding device is provided with spillover valves and an electromagnetic valve, can adjust and control the system to operate under a constant pressure so as to prevent a charging pump from damaging mechanical seal resulting from the pressure change caused by switching on and shutting down. The lubricating and pressure holding device adopts oil as the cooling medium, not only has good cooling effect but also has lubricating function. The lubricating and pressure holding device adopts the two-stage cooling, and has favorable radiating effect. The lubricating and pressure holding device is provided with a pressure gauge, can carry out the real-time monitoring of the pressure change of the system, and the timely maintenance can be carried out even under the conditions that the pressure is abnormal and the electromagnetic valve is not switched on; the occurrence of industrial accidents is avoided by manually closing the pipelines through the two spillover valves.

Description

A kind of lubricating pump

Technical field

The utility model belongs to lubricated pressurize apparatus field, is specifically related to a kind of lubricated pressurize equipment of mechanical seal device.

Background technique

Mechanical seal is meant by at least one pair of end face perpendicular to spin axis, under the effect of hydrodynamic pressure and compensation mechanism elastic force, keeps fitting and slide relative and the device that prevents escape of liquid that constitutes.Mechanical seal can stop the gap of slurry between the stirring shaft and the pump housing in the charging pump leaks.Mechanical seal more and more is applied to industries such as chemical industry, building because of it has advantages such as good sealing effect, friction power loss be little.

Mechanical seal is in the course of the work together with the axle friction that rotates that is mated, thereby produces a large amount of frictional heats, needs cooling liquid to take away this part heat usually, utilizes the hydrodynamic pressure of cooling liquid to stop the slurry leakage simultaneously, plays seal action.Generally adopt water as cooling medium under the prior art condition, yet in the switching on and shutting down process, because the variation of system pressure, cooling water is fed the slurry contamination that small amount of leakage goes out in the pump easily, the mechanical seal of having worn and torn has destroyed sealing effect.In the production process of large enterprise, common a plurality of charging pump is worked together, cooling water circulates in the mechanical seal of a plurality of charging pumps lowers the temperature, in case wherein a charging pump generation slurry leaks, polluted cooling water, will cause a plurality of mechanical seals to be damaged, its loss is inestimable.Adopt water as cooling medium simultaneously, do not have lubrication, can't effectively reduce friction and give birth to heat.

The model utility content

The technical problem that the utility model solves is: design a kind of lubricating pump, can be mechanical seal the constant compression force environment in use is provided, the working life of prolonged mechanical sealing.

The technological scheme that its technical problem that will solve the utility model adopts is: design a kind of lubricating pump, comprise pump, pipeline, the fuel tank that it is characterized in that also comprising pressurizer He lubricant oil is housed, fuel tank connects pump by pipeline, pump connects pressurizer, and pressurizer takes back fuel tank by pipeline.

A kind of lubricating pump described in the utility model, it is characterized in that pressurizer comprises access port, exit, first relief valve, second relief valve, one-way valve, first pressure gauge and second pressure gauge, access port connects one-way valve by pipeline, one-way valve connects first relief valve by pipeline, first relief valve connects first pressure gauge by pipeline, and first pressure gauge is connected to pump by pipeline; The exit connects second pressure gauge by pipeline, and second pressure gauge connects second relief valve by pipeline, and second relief valve connects fuel tank by pipeline.Pressurizer also comprises solenoid valve, and solenoid valve is connected on the pipeline between the exit and second pressure gauge.Fill lubricant oil in the fuel tank.Fuel tank, pump and pressurizer constitute the one-level cooling unit.The utility model also comprises the secondary cooling unit, and the secondary cooling unit is installed on the fuel tank.The secondary cooling unit is the liquid storage tank that the liquid gateway is arranged, and fuel tank is immersed in the liquid storage tank.The secondary cooling unit also can be liquid circulation line, and liquid circulation line is coiled in the fuel tank periphery or immerses in the fuel tank.

The beneficial effect that the utility model had is:

1. the utility model is provided with relief valve and solenoid valve, and adjustable mechanical seal moves under the constant voltage environment, can not leak because of the charging pump that variation in pressure caused that switching on and shutting down cause and destroy mechanical seal.In case system pressure is unusual, solenoid valve can be under the cooperation of relief valve closing pipe line automatically, keep the mechanical seal working pressure constant.First relief valve can keep in the pipeline flow of lubrication stable, can effectively avoid in the switching on and shutting down process because the impact damage that the inertial flow of lubricant oil causes mechanical seal.

2. the utility model adopts oil as cooling medium, not only good cooling results but also have lubrication.

3. cold oil medium of the present utility model is recycled in closed system, and consumption is few, economy.

4. the utility model adopts the secondary cooling, and radiating effect is better.

5. the utility model carries out independent oil cooling at each mechanical seal, is damaged in case machine slurry leaks the mechanical seals that also only limit on this machine at most, can related series loop in a plurality of mechanical seals impaired.

6. the utility model is provided with pressure gauge, but real-time monitoring system variation in pressure situation even under the situation that solenoid valve does not start in that pressure anomaly takes place, also can accomplish timely maintenance, is utilized two manual closing pipe lines of relief valve, avoids taking place production accident.

7. the utility model is simple in structure, and is easy to operate, economical and practical, is easy to promote.

Description of drawings

Fig. 1 is an overall structure schematic representation of the present utility model;

Fig. 2 is a work structuring schematic representation of the present utility model;

Among the figure: 1. solenoid valve, 2. second pressure gauge, 3. second relief valve, 4. secondary cooling unit, 5. fuel tank, 6. pump, 7. first pressure gauge, 8. first relief valve, 9. one-way valve, 10. access port, 11. exits, 12. mechanical seals.

Embodiment

Below in conjunction with drawings and Examples the utility model is described further.

Embodiment one

As shown in Figure 1, the fuel tank 5 that lubricant oil is housed connects pump 6 by pipeline, pump 6 connects first pressure gauge 7, first pressure gauge 7 connects first relief valve, 8, the first relief valves 8 and connects one-way valve 9, and one-way valve 9 connects access port 10, fuel tank 5 connects second relief valve 3 by pipeline simultaneously, second relief valve 3 connects second pressure gauge, 2, the second pressure gauges 2 and connects solenoid valve 1, and solenoid valve 1 connects exit 11.Fuel tank 5, pump 6, first pressure gauge 7, first relief valve 8, one-way valve 9, access port 10, exit 11, solenoid valve 1, second pressure gauge 2 and second relief valve 3 constitute the one-level cooling unit.Secondary cooling unit 4 of the present utility model is arranged on the fuel tank 5, and secondary cooling unit 4 is a liquid circulation line, and it is peripheral or immerse in the lubricant oil in the fuel tank that liquid circulation line is coiled in fuel tank.Liquid circulation line can be connected the water source, and fuel tank 5 and interior lubricant oil thereof are cooled off.

When using the utility model, as shown in Figure 2, with mechanical seal 12 connecting systems, the cooling liquid entrance and exit of mechanical seal 12 connects access port 10 of the present utility model and exit 11 respectively.Start secondary cooling unit 4 then, connect external water source, water can be circulated in liquid circulation line, take away the heat of fuel tank 5 and Qi Nei lubricant oil.So far finish the utility model installation process.

Then the utility model is used preceding debugging.Earlier second relief valve 3 is tightened, adjusted first relief valve 8, make force value that the pressure gauge 7 of winning records value of reading, approximately exceed 0.1MPa and get final product greater than second pressure gauge 2.Then adjust second relief valve 3, make second pressure gauge, 2 values of reading be authorized pressure, can make that like this lubricant oil in the pipeline can be by the high pressure place to low pressure place directional flow.So far finish debugging work before the use of the present utility model.

Finish after the above-mentioned steps, get final product primer pump 6, equipment is normally moved.In case mechanical seal 12 takes place to leak or because the situation of other reasons generation systems pressure anomaly, solenoid valve 1 is closing pipe line automatically, guarantees that mechanical seal 12 working pressures are constant, the damage of avoiding the slurry leakage that mechanical seal 12 is caused.If solenoid valve 1 breaks down or because other reasons fail in time to start, also can observe the pressure anomaly situation by two pressure gauges after, manually control two relief valve closing pipe lines.When the manufacturing mechanism switching on and shutting down, the lubricant oil in the pipeline is because inertial flow can impact to mechanical seal 12, and first relief valve 8 can make that the flow of lubrication constant speed in the pipeline is stable, thus protection mechanical seal 12.

Embodiment two

Secondary cooling unit 4 can immerse fuel tank 5 wherein for being provided with the aqua storage tank of water in-out port, and water inlet is connected the water source, and the water in the groove is constantly flow to from water inlet, flows out from water outlet, takes away the heat of fuel tank 5 and interior lubricant oil thereof, thus the cooling procedure of finishing.Other are identical with embodiment one, repeat no more.

Claims

1. a lubricating pump comprises pump, pipeline, it is characterized in that also comprising pressurizer and fuel tank, and fuel tank connects pump by pipeline, and pump connects pressurizer by pipeline, and pressurizer connects fuel tank by pipeline.

2. a kind of lubricating pump according to claim 1, it is characterized in that pressurizer comprises access port, exit, first relief valve, second relief valve, one-way valve, first pressure gauge and second pressure gauge, access port connects one-way valve by pipeline, one-way valve connects first relief valve by pipeline, first relief valve connects first pressure gauge by pipeline, and first pressure gauge is connected to pump by pipeline; The exit connects second pressure gauge by pipeline, and second pressure gauge connects second relief valve by pipeline, and second relief valve connects fuel tank by pipeline.

3. a kind of lubricating pump according to claim 2 is characterized in that pressurizer also comprises solenoid valve, and solenoid valve is connected on the pipeline between the exit and second pressure gauge.

4. according to claim 1 or 2 or 3 described a kind of lubricating pumps, it is characterized in that also comprising the secondary cooling unit, the secondary cooling unit is installed on the fuel tank.

5. a kind of lubricating pump according to claim 4 is characterized in that the secondary cooling unit is the liquid storage tank that the liquid gateway is arranged, and fuel tank is immersed in the liquid storage tank.

6. a kind of lubricating pump according to claim 4 is characterized in that the secondary cooling unit is a liquid circulation line, and liquid circulation line is coiled in the fuel tank periphery or immerses in the fuel tank.