Novel oil mist fan device for lubricating oil station

Abstract

The utility model discloses a novel lubricating oil station oil mist fan device which comprises a lubricating oil tank, an oil mist separator, an oil smoke fan, an oil tank fan and an oil tank motor, the oil mist separator is installed above the lubricating oil tank, and the outlet end of a gathering and separating filter element in the oil mist separator is communicated with an inlet of the lubricating oil tank; three through holes are sequentially formed in the side wall of the oil mist separator from top to bottom and communicate with a first pipeline, a second pipeline and a third pipeline correspondingly, and the outlet end of the first pipeline is connected with the inlet end of the oil tank fan. An oil fume fan is arranged on the second pipeline; and an outlet valve is arranged at the lower port of the fourth pipeline and is sequentially communicated with the third pipeline and the second pipeline from bottom to top. The problems that an oil mist fan of a traditional lubricating oil station is poor in oil smoke filtering capacity, low in recovery efficiency and serious in environmental pollution can be effectively solved.

Description

Technical Field

[0001] The utility model belongs to the technical field of oil fume separation, and in particular relates to a novel oil mist fan device for a lubricating oil station. Background Art

[0002] The lubrication (regulation) oil station (referred to as the lubrication station) is a special lubrication system that provides lubrication oil for all lubrication points of the fan unit, and is an important link in the normal operation of the fan system. The lubrication station consists of an oil tank, oil cooler, oil filter, screw pump, motor, oil mist fan and other parts.

[0003] As an auxiliary module for oil return in oil stations, the oil mist fan mainly accelerates oil return. The oil mist fan generates a small negative pressure, which can make oil return smooth and prevent oil from leaking into the compressor and the outside of the bearing box along the shaft. The existence of the oil mist fan can not only remove water vapor and oil gas, but also form a slight negative pressure in the oil tank to make oil return smoother.

[0004] Traditional oil mist fans have poor oil-gas separation effects and oil dripping from the discharge port, which seriously affects the environment. At the same time, most oil mist fans simply use exhaust pipes to discharge directly from the top, which causes a large amount of oil mist to be discharged into the air, causing great waste. In line with the environmental protection requirements of enterprises, oil mist fans have added filtering devices, but the oil mist fan has a weak oil fume filtering ability and cannot be recycled. A large amount of oil fume is discharged directly into the atmosphere without treatment, which makes it difficult to meet the new environmental protection requirements. Utility Model Content

[0005] The utility model aims to provide a novel oil mist fan device for a lubricating oil station, so as to solve the problems that the oil mist fan of a traditional lubricating oil station has weak oil fume filtering ability, low recovery efficiency and serious environmental pollution.

[0006] In order to achieve the above object, the present invention adopts the following technical solution:

[0007] A novel oil mist blower device for a lubricating oil station comprises a lubricating oil tank, an oil mist separator, an oil fume blower, an oil tank blower and an oil tank motor, wherein the oil mist separator is installed above the lubricating oil tank, and the outlet end of the gathering and separation filter element in the oil mist separator is connected to the inlet of the lubricating oil tank;

[0008] The side wall of the oil mist separator is provided with three through holes from top to bottom, which are connected to the first pipeline, the second pipeline and the third pipeline respectively, wherein the outlet end of the first pipeline is connected to the inlet end of the oil tank fan; the oil tank fan is connected to the oil tank motor for driving the oil tank fan; the oil fume fan is arranged on the second pipeline; a one-way valve is arranged on the third pipeline, and the direction of the one-way valve is from the oil mist separator to the lubricating oil tank. The oil mist is arranged at the outlet end of the oil tank fan, and the outlet valve is arranged at the lower end of the fourth pipeline, and then it is connected to the third pipeline and the second pipeline from bottom to top; a bypass valve is arranged on the third pipeline between the connection between the fourth pipeline and the third pipeline and the oil mist separator;

[0009] The side wall of the oil mist separator is also connected to the lubricating oil tank through an oil return pipe, and an oil return bypass valve is arranged on the oil return pipe.

[0010] The utility model also includes the following other technical features:

[0011] A regulating valve 8 is arranged on the second pipeline between the oil fume blower and the oil mist separator.

[0012] A sixth pipeline is connected and arranged on the upper side wall of the oil mist separator, and a fan pressure gauge is arranged on the output end of the sixth pipeline.

[0013] A lubricating oil tank pressure gauge is arranged on a pipeline connecting the outlet end of the aggregation separation filter element and the inlet of the lubricating oil tank.

[0014] Compared with the prior art, the present invention has the following technical effects:

[0015] At the same time, the device effectively improves the recovery efficiency of lubricating oil, reduces environmental pollution and improves efficiency.

[0016] 1) When the machine is shut down due to human error or fault, the oil tank fan will no longer draw air. The utility model can avoid the risk of increased pressure in the large oil tank due to abnormal operation of the oil and gas recovery device (fan failure, abnormal blockage of the filter), which ultimately causes poor oil return of the unit's lubricating oil, and has strong filtering capacity.

[0017] 2) The utility model adds a one-way valve and a regulating valve, so that even if the oil tank fan fails and stops, the oil mist can be discharged in time to maintain the negative pressure of the oil tank.

[0018] 3) The utility model can efficiently recycle oil mist, and the recovered lubricating oil can enter the oil return tank for recycling, with a utilization rate of more than 95%, reducing costs and reducing pollution to the environment. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a structural schematic diagram of a novel oil mist blower device for a lubricating oil station of the utility model.

[0020] The meanings of the symbols in the figure are as follows:

[0021] 1- fan pressure gauge; 2- lubricating oil tank pressure gauge; 3- lubricating oil tank; 4- oil return bypass valve; 5- oil mist separator; 6- aggregation separation filter element; 7- oil fume fan; 8- regulating valve; 9- outlet valve; 10- bypass valve; 11- oil tank fan; 12- oil tank motor; 13- check valve.

[0022] The present invention is further described below in conjunction with the accompanying drawings and specific implementations. DETAILED DESCRIPTION

[0023] like Figure 1 As shown, the novel oil mist blower device of the lubricating oil station provided by the utility model comprises a lubricating oil tank 3, an oil mist separator 5, an oil fume blower 7, an oil tank blower 11 and an oil tank motor 12, wherein the oil mist separator 5 is installed above the lubricating oil tank 3, and the outlet end of the gathering and separation filter element 6 in the oil mist separator 5 is connected to the inlet of the lubricating oil tank 3;

[0024] The side wall of the oil mist separator 5 is provided with three through holes from top to bottom, which are connected to the first pipeline, the second pipeline and the third pipeline respectively, wherein the outlet end of the first pipeline is connected to the inlet end of the oil tank fan 11; the oil tank fan 11 is connected to the oil tank motor 12 for driving the oil tank fan 11; the oil fume fan 7 is arranged on the second pipeline; preferably, a regulating valve 8 is arranged on the second pipeline between the oil fume fan 7 and the oil mist separator 5; and a one-way valve 13 is arranged on the third pipeline (the direction of the one-way valve 13 is from the oil mist separator 5 to the lubricating oil tank 3). The oil mist is provided with a fourth pipeline from the outlet end of the oil tank fan 11, and an outlet valve 9 is arranged at the lower end of the fourth pipeline, and then connected to the third pipeline and the second pipeline from bottom to top; a bypass valve 10 is arranged on the third pipeline between the connection between the fourth pipeline and the third pipeline and the oil mist separator 5;

[0025] The side wall of the oil mist separator 5 is also connected to the lubricating oil tank 3 through an oil return pipe, and an oil return bypass valve 4 is provided on the oil return pipe;

[0026] Preferably, a sixth pipeline is provided on the upper side wall of the oil mist separator 5, and a fan pressure gauge 1 is provided on the output end of the sixth pipeline; a lubricating oil tank pressure gauge 2 is provided on the pipeline connecting the outlet end of the aggregation separation filter element 6 and the inlet of the lubricating oil tank 3.

[0027] The working principle of the utility model is as follows:

[0028] The oil tank fan 11 sucks out the oil fume in the lubricating oil tank 3 through the first branch, and when passing through the second pipeline, the oil fume can be re-entered into the oil mist separator 5 through the oil fume fan 7, and re-filtered and liquefied, and then efficiently coalesced and separated through the aggregation and separation filter element 6 to remove particulate impurities, atomized oil fume, and water vapor in the flue gas. Most of the liquefied oil mist is separated and returned to the lubricating oil tank 3 by the aggregation and separation filter element 6 for reuse. A small part of the oil mist is discharged through the fourth pipeline by the oil tank motor 12 driving the oil tank fan 11.

[0029] An oil tank pressure gauge 2 is provided between the lubricating oil tank 3 and the gathering and separation filter element 6 of the oil mist separator 5. A fan pressure gauge 1 is provided at the fan inlet on the oil mist separator 5 to monitor the pressure of the lubricating oil tank 3 at any time to maintain a negative pressure state, and the fan pressure is maintained at 0-10Kpa. The pressure states of the lubricating oil tank 3 and the fan are monitored in real time to avoid long-term poor oil return from the lubricating oil tank 3, which may cause oil leakage of the unit and even unit failure.

[0030] When the oil tank fan 11 is operating normally, the outlet valve 9 is fully open, and the bypass valve 10 is fully closed or opened at a certain angle to adjust the pressure in the lubricating oil tank 3. Because the inlet pressure of the outlet valve 9 is higher than the bypass valve 10, the one-way valve 13 is closed at this time, and the oil smoke is discharged through the gathering and separation filter element 6 and the oil tank fan 11, or the oil smoke passes through the gathering and separation filter element 6 and the oil tank fan 11 and re-enters the oil mist separator 5 through the oil smoke fan 7 and the regulating valve 8 to liquefy the oil mist, and enters the lubricating oil tank 3 through the second bypass valve 4 on the oil return pipe. When the oil tank fan 11 is operating normally, the regulating valve 8 can adjust the air supply volume of the oil smoke fan 7, give priority to reusing the oil mist, and circulate it into the oil mist separator 5. At the same time, the regulating valve 8 can keep the lubricating oil tank 3 in a negative pressure state at all times.

[0031] When the machine is shut down due to human error or failure, the oil tank fan 11 stops pumping air, and the inlet pressure of the outlet valve 9 is lower than that of the bypass valve 10. At this time, the one-way valve 13 opens, and the oil smoke passes through the gathering and separation filter element 6, the bypass valve 10, and the one-way valve 13 and is discharged into the oil tank 3, which plays a role in pressure relief. This avoids the risk of the pressure of the lubricating oil tank 3 rising due to abnormal operation of the oil and gas recovery device of the utility model (the oil tank fan 11 stops unexpectedly, the filter is abnormally blocked), and finally causing the risk of poor oil return of the unit lubricating oil.

[0032] The selection and design of this device fully meet the requirements of the site. The original filter device can be modified and the oil mist device of this utility model can be customized by using the original interface. The whole set can be replaced to avoid on-site welding and fire.

[0033] After actual operation, the technical effects are as follows:

[0034] (1) After the process of aggregation and separation filter element 6 and repeated filtration, the oil fume removal efficiency is basically above 95%, the lubricating oil can be recycled, the workshop environment hygiene is improved, and the pollution to the environment is reduced.

[0035] (2) Taking a set of fans at a user's site as an example, the amount of oil replenishment was reduced from 2 barrels / 1.5 months to 1 barrel / year, reducing the annual lubricant loss by about 15 barrels. Based on Shell's price of about RMB 5,000 per barrel, the annual loss was reduced by about RMB 70,000.

Claims

1. A new type of oil mist fan device for lubricating oil station, It is characterized in that The oil mist separator comprises a lubricating oil tank (3), an oil mist separator (5), an oil fume blower (7), an oil tank blower (11) and an oil tank motor (12), wherein the oil mist separator (5) is installed above the lubricating oil tank (3), and the outlet end of the aggregation and separation filter element (6) in the oil mist separator (5) is connected to the inlet end of the lubricating oil tank (3); The side wall of the oil mist separator (5) is provided with three through holes from top to bottom, which are connected to the first pipeline, the second pipeline and the third pipeline respectively, wherein the outlet end of the first pipeline is connected to the inlet end of the oil tank fan (11); the oil tank fan (11) is connected to an oil tank motor (12) for driving the oil tank fan (11); the second pipeline is provided with an oil fume fan (7); the third pipeline is provided with a one-way valve (13), and the direction of the one-way valve (13) is from the oil mist separator (5) to the lubricating oil tank (3); the oil mist is provided with a fourth pipeline from the outlet end of the oil tank fan (11), and an outlet valve (9) is provided at the lower end of the fourth pipeline, and then connected to the third pipeline and the second pipeline from bottom to top; a bypass valve (10) is provided on the third pipeline between the connection between the fourth pipeline and the third pipeline and the oil mist separator (5); The side wall of the oil mist separator (5) is also connected to the lubricating oil tank (3) via an oil return pipe, and an oil return bypass valve (4) is provided on the oil return pipe.

2. The novel lubricating oil station oil mist blower device as claimed in claim 1, It is characterized in that A regulating valve (8) is provided on the second pipeline between the oil fume blower (7) and the oil mist separator (5).

3. The novel lubricating oil station oil mist blower device as claimed in claim 1, It is characterized in that A sixth pipeline is provided on the upper side wall of the oil mist separator (5), and a fan pressure gauge (1) is provided on the output end of the sixth pipeline.

4. The novel lubricating oil station oil mist blower device as claimed in claim 1, It is characterized in that A lubricating oil tank pressure gauge (2) is provided on a pipeline connecting the outlet end of the aggregation separation filter element (6) and the inlet of the lubricating oil tank (3).

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