CN2192370Y

CN2192370Y - Vacuum oil filter

Info

Publication number: CN2192370Y
Application number: CN 93239671
Authority: CN
Inventors: 徐琛
Original assignee: Individual
Current assignee: Individual
Priority date: 1993-11-30
Filing date: 1993-11-30
Publication date: 1995-03-22
Anticipated expiration: 2003-11-30

Abstract

The utility model belongs to an improved vacuum oil filter, aiming at enhancing the purification efficiency and the purification depth of a vacuum oil filter, reducing the run noise and the vibration of equipment, enhancing oil outlet pressure and improving the function course of vacuum and negative pressure attractive force to water and gas isolated from oil. An omnibearing air extractor is arranged in a vacuum tank by the utility model, and double-stage pumps are adopted and connected in series in an oil drain system to drain the oil. The oil outlet pressure is enhanced, the efficiency of oil liquid purification is 2 times as great as the efficiency of the oil liquid purification of the existing vacuum oil filter, noise is controlled in 60 to 80 decibels in operation, vibration is little, the oil outlet pressure is controlled in 1 to 1.2 MPa, purification accuracy is correspondingly enhanced, and various production conditions and production requirements are satisfied.

Description

Vacuum oil filter

The utility model relates to a kind of follow-on vacuum oil-filter, belongs to the separation machinery technical field.

Existing vacuum oil-filter utilizes transformer oil, turbine oil, hydraulic pressure wet goods fluid is easy to separate the moisture content in fuel-displaced and the feature of gas under heated condition or vacuum state, with the dehydration degassing in vacuum tank of fluid heating back, its clean-up effect and precision depend on the heating-up temperature that purifies fluid, the state that vacuum in the vacuum tank and fluid exist in vacuum tank, the time of staying, therefore will cause the overheated deterioration of fluid because the heating-up temperature of fluid is too high, temperature does not have effect inadequately, and existing vacuum oil-filter was designed into the working vacuum degree below the negative 0.096MPa in the past, approach absolute vacuum degree 0.101MPa, so, existing vacuum oil-filter is real cut to improve fluid state that exists and the time that exists in vacuum tank all for improving its technological improvement that purifies fluid efficient and precision, as shown in Figure 1 be the schematic diagram of the designed a kind of modified high-efficiency vacuum oil filter of CN2123358u, this design is equipped with atomizing distributor (7) in vacuum tank (6), knockout tower (8), its effect is to improve the existence of fluid in vacuum tank, prolong the time of staying of fluid in vacuum tank, in this structure, thereby opening an osculum on the vacuum tank is communicated with the vavuum pump air inlet and makes vavuum pump realize the negative pressure of gas in the jar is drawn, the velocity flow that rises from per minute 5-200 when fluid is during through vacuum tank, mist of oil in the vacuum tank of finite volume, oil film density is very big, isolated aqueous vapor in the fluid, vaporization fluid and other gas are in the process of vavuum pump air entry motion, be subjected to the very big mist of oil of density, the obstacle of oil film and knockout tower, need long move distance, long run duration, bigger negative pressure of vacuum suction just can enter the vavuum pump air entry, break away from liquid fluid fully, like this, just cause 1, long-time and the atomizing shape of isolated gas, membranaceous fluid is the space admixture, the existing clean-up effect that has reduced fluid again deterioration fluid continue to isolate the environmental condition of moisture content and gas.2, gas has big obstacle when the vavuum pump air entry moves, must increase the negative-pressure sucking of vavuum pump air entry to gas in the jar, but, the oil extraction gear pump that fluid is discharged in the vacuum tank, also be to utilize gear to be meshing with each other to form parital vacuum to draw a jar inner fluid at the place, oil inlet end backlash of gear pump when rotating, like this, vavuum pump is air-breathing opposite with two negative-pressure sucking aspects of gear pump oil suction, and vavuum pump intake negative-pressure masterpiece is used in the whole vacuum tank, so, when vavuum pump reaches negative 0.093MPa to the negative-pressure sucking in the vacuum tank, just insufficient to the gear pump oil suction, oil drain quantity reduces, and is the cavitation appearance of the form of expression with strong noise and high vibration, and noise is more than 110 decibels.In addition, because gear pump turnover oil pressure ratio is unsuitable excessive, vacuum oil-filter oil extraction gear pump oil inlet end is subjected to the vacuum buffer brake, so vacuum oil-filter goes out oil pressure and generally is rated at 0.4MPa, and, along with the rising of pressure, flow will reduce, and noise will increase.

The purpose of this utility model is to overcome the shortcoming that existing vacuum oil-filter exists, and a kind of improved vacuum oil-filter is provided, have purify fluid efficient height, precision height, noise is low, vibration is little, go out oil pressure big, operate light, widely applicable characteristics.

The purpose of this utility model is achieved in that

The utility model is made up of inlet valve, coarse filtration jar, fluid heater, vacuum tank, condenser, fine filter etc., it is characterized in that being equipped with comprehensive air ejector (27) and be provided with series connection gear pump (35), (36) in vacuum tank oil extraction place in vacuum tank.Make in the fluid isolated gas only need less negative pressure of vacuum suction can enter comprehensive air ejector passage, separate with liquid fluid fully, the identical fluid of purification heating condition is installed comprehensive bleeding in vacuum tank after, negative air-breathing when being 0.09MPa in vacuum, its purification efficiency is 3 times when comprehensive air ejector negative pressure of vacuum suction not being installed in the vacuum tank being 0.09MPa, be that comprehensive air ejector negative pressure of vacuum suction is not installed in the vacuum tank is 2 times of 0.097MPa, and finally improve for precision only, noise is reduced to below 80 decibels.Adopt the oil extraction of series connection twin-stage gear, the first order of gear pump is extracted fluid out in vacuum tank, though oil inlet end is subjected to the effect of vacuum tank negative pressure negative pressure, but the oil outlet end oil pressure is transferred very for a short time, the oil that first order gear pump is discharged in the second level of gear pump sucks the back and discharges with higher pressure, the turnover oil of first order gear pump is communicated with overflow valve, has so just guaranteed that fuel-displaced power increases to 1-1.2MPa under the smaller situation of gear pump turnover oil pressures at different levels.

Comprehensive air ejector (27) is by being covered with aperture The box body of shape constitutes, the thick 10-15mm of box body communicates fully in the box body and is communicated with the vavuum pump admission line, and it is equivalent in vacuum tank each space vacuum pumping opening of rationally having gathered, solve isolated gas and entered comprehensive bleed-off passage smoothly, thereby reached the purpose of isolation of purified.

The utlity model has the purification efficiency height, go out that oil pressure is big, noise is little, have no way of and reducing with strong noise and the acutely appearance of the cavitation of the disturbance form of expression in the insufficient oil drain quantity of gear pump oil suction, noise is reduced in below 80 decibels, the precision height, the operation light, widely applicable characteristics, overcome the long-time purification efficiency that is the reduction fluid that the space admixture caused with vaporific fluid of isolated gas and gas when the vavuum pump air entry move obstacle greatly and along with the rising flow of pressure will reduce, noise is with the shortcoming of increase.

The explanation of accompanying drawing drawing:

Fig. 1 is the schematic diagram of the vacuum oil purifier of existing Yuzhou Univ design.

Fig. 2 is a structural representation of the present utility model.

Fig. 3 is the cut-away view device of comprehensive air ejector in vacuum tank.

Among Fig. 2, the first order pump of 22 inlet valves, 23 coarse filtration jars, 24 fluid heaters, 25 heated constant temperature controllers, 26 coarse filtration jars, 27 comprehensive air ejectors, 28 vacuum meters, 29 condensers, 30 check valves, 31 valves, 32 vavuum pumps, 33 oil atomization distributors, 34 vibration nets, 35 series connection oil extraction two-stage pumps, the second level pump of 36 series connection oil extraction two-stage pumps, 37 overflow valves, 38 check valves, 39 Pressure gauges, 40 fine filters, 41 oil level display tubes, 42 overflow valves.

Below in conjunction with accompanying drawing present embodiment is described further:

As shown in Figure 2; fluid to be clean enters through coarse filter (23) from inlet valve (22); remove that impurity is laggard goes into heater (24); heated fluid is on atomizing distributor (33) is sprayed onto vacuum tank in vibration net (34) by strip stainless steel cloth group one-tenth; fluid vibrates at vibration net (34) last formation oil film and with the slight vibration of equipment; thereby making moisture content in the fluid and gas be gaseous state easily from liquid fluid separates; aperture by comprehensive air ejector (27) (as shown in Figure 3) enters comprehensive air ejector nearby; under the effect of negative pressure of vacuum, taken away then; water droplet congeals into the aqueous vapor major part in condenser (29); other gas is discharged through vavuum pump (32); fluid after the purification is fallen the bottom of vacuum tank (26) and is assembled by series connection gear pump (35); (36) discharge; through check valve (38); fine filter (40) enters oil storage tank or equipment; in addition; overflow valve (42) shields; make fuel-displaced power be lower than the pressure that fuel-displaced filter core can bear; the first order oil extraction pressure of overflow valve (37) control series connection gear pump one more among a small circle in; radiator valve (25) control heating-up temperature; make the fluid can overheated deterioration, thereby the result that comes to perfection.

Claims

1, a kind of vacuum oil-filter is made up of inlet valve, coarse filtration jar, fluid heater, vacuum tank, condenser, fine filter, it is characterized in that being equipped with in the vacuum tank comprehensive air ejector (27), and is provided with series connection gear pump (35,36) in vacuum tank oil extraction place.

2, oil filter according to claim 1 is characterized in that comprehensive air ejector (27) is by being covered with aperture

The box body of shape constitutes, and communicates fully in the box body and links to each other with the vavuum pump air inlet duct.