Novel pneumatic recovery device in oil mist lubrication system

Abstract

The utility model discloses a novel pneumatic recovery device in an oil mist lubrication system, which relates to the field of oil mist lubrication and comprises a recovery box body, a filter element chamber is arranged in the recovery box body, a vacuum pump chamber is arranged on one side of the filter element chamber, and the filter element chamber is communicated with the vacuum pump chamber through a vacuum pump device. An emptying chamber is arranged in the vacuum pump chamber, a pre-filtering chamber and a post-filtering chamber are arranged below the filter element chamber, the pre-filtering chamber is communicated with the emptying chamber, the post-filtering chamber is communicated with the filter element chamber, and a post-filtering oil tank and a pre-filtering oil tank are arranged below the pre-filtering chamber and the post-filtering chamber; the after-filtration oil tank is communicated with the after-filtration chamber through a second vacuum isolation valve, a first balance valve is arranged on the after-filtration oil tank, the before-filtration oil tank is communicated with the emptying chamber through a first vacuum isolation valve, and a second balance valve is arranged on the before-filtration oil tank. And the full lubricating oil can be discharged and collected, so that the oil mist recovery efficiency is improved.

Description

Technical Field

[0001] The utility model belongs to the field of oil mist lubrication, and particularly relates to a new pneumatic recovery device in an oil mist lubrication system. Background Technique

[0002] A recovery device is provided in the oil mist lubrication system. At present, the lubricating oil generated after the pneumatic recovery system in the oil mist lubrication recovery system filters the oil mist will accumulate in the post-filter oil tank, and at the same time, the oil droplets condensed from the pre-filter oil mist will accumulate in the pre-filter oil tank. After the lubricating oil in these two oil tanks is full, it needs to be discharged in time. Due to the negative pressure generated by the vacuum pump, there are different negative pressures in the pre-filter oil tank and the post-filter oil tank. When discharging, it is necessary to turn off the pneumatic vacuum pump to stop the operation of the pneumatic recovery system. Only after the negative pressures in the pre-filter oil tank and the post-filter oil tank are eliminated can the lubricating oil inside the oil tank be discharged, which increases the recovery difficulty and affects the overall oil mist recovery efficiency of the equipment. Content of the Utility Model

[0003] To solve the problems raised in the above background technique, the utility model provides a new pneumatic recovery device in an oil mist lubrication system. A set of vacuum isolation device and a set of pressure balance device are added to each of the pre-filter oil tank and the post-filter oil tank. When draining the oil, the pneumatic recovery system does not need to be turned off, and the collected lubricating oil can be discharged, so that the lubrication system operates stably, the oil mist recovery efficiency is improved, and the safe operation of the machine pump is ensured.

[0004] To achieve the above object, the specific technical solution of the utility model is as follows:

[0005] A new pneumatic recovery device in an oil mist lubrication system includes a recovery box body. A filter element chamber is arranged inside the recovery box body. A vacuum pump chamber is arranged on one side of the filter element chamber. A vacuum pump device is fixedly installed in the vacuum pump chamber. The filter element chamber and the vacuum pump chamber are connected and communicated through the vacuum pump device. A discharge cavity is arranged in the vacuum pump chamber. A pre-filter chamber and a post-filter chamber are arranged below the filter element chamber. The pre-filter chamber and the post-filter chamber are independently partitioned. The pre-filter chamber is communicated with the discharge cavity, and the post-filter chamber is communicated with the filter element chamber. The pre-filter chamber is communicated with the filter element chamber through a filter element device. A post-filter oil tank and a pre-filter oil tank are arranged below the pre-filter chamber and the post-filter chamber. The post-filter oil tank is communicated with the post-filter chamber through a second vacuum isolation valve. A first balance valve is arranged on the post-filter oil tank. The pre-filter oil tank is communicated with the discharge cavity through a first vacuum isolation valve. A second balance valve is arranged on the pre-filter oil tank.

[0006] As a further setting of the above solution, a first ball valve is arranged on the front side surface of the filter element chamber. A filter element device is arranged on the bottom plate of the filter element chamber. The filter element device is communicated with the pre-filter chamber. A through hole is arranged on the bottom plate of the filter element chamber. The through hole is communicated with the post-filter chamber.

[0007] As a further setting of the above solution, an air inlet device and a third air valve are arranged on the front side plate of the discharge cavity chamber. A connection channel is opened on one side of the discharge cavity chamber, and the connection channel is communicated with the pre-filter chamber.

[0008] As a further setting of the above solution, an exhaust device is arranged at the upper end of the vacuum pump chamber. A second ball valve and a pressure valve are arranged on the front side plate of the vacuum pump chamber. An instrument air source device is arranged on the pressure valve, and the pressure valve is communicated with the vacuum pump device.

[0009] As a further setting of the above solution, a first oil drain valve is arranged at the lower end of the post-filter oil tank, and a second oil drain valve is arranged at the lower end of the pre-filter oil tank.

[0010] The utility model has the following beneficial effects:

[0011] By correspondingly arranging a first vacuum isolation valve and a second vacuum isolation valve in the pre-filter oil tank and the post-filter oil tank, and at the same time cooperating with the correspondingly arranged second balance valve and first balance valve, it is possible to drain the collected lubricating oil without closing the pneumatic recovery system when draining oil, so that the lubrication system operates stably and the oil mist recovery efficiency is improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 is a schematic external view of the utility model;

[0013] Figure 2 is a schematic view of the fixed bracket device of the utility model;

[0014] Figure 3 is an assembly schematic view of the fixed bracket device and the clamp device of the utility model;

[0015] Figure 4 is a schematic view of the clamp device of the utility model.

[0016] a. Recovery box; 1. Filter element chamber; 2. Pre-filter chamber; 3. Post-filter chamber; 4. Post-filter oil tank; 5. Pre-filter oil tank; 6. Vacuum pump chamber; 7. Discharge cavity chamber; 8. First vacuum isolation valve; 9. Second vacuum isolation valve; 10. Liquid level gauge; 101. First ball valve; 102. Filter element device; 103. Through hole; 401. First balance valve; 402. First oil drain valve; 501. Second balance valve; 502. Second oil drain valve; 601. Instrument air source device; 602. Pressure valve; 603. Exhaust device; 604. Vacuum pump device; 605. Second ball valve; 701. Air inlet device; 702. Third air valve; 703. Connection channel. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0017] To enable those skilled in the art to better understand the solution of this application, the technical solutions in the embodiments of this application will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of this application. Obviously, the described embodiments are only a part of the embodiments of this application, rather than all of the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments in this application without creative efforts shall fall within the scope of protection of this application.

[0018] It should be noted that, without conflict, the embodiments in this application and the features in the embodiments can be combined with each other. The following will refer to the attached Figures 1 - 4 drawings and describe this application in detail in conjunction with the embodiments.

[0019] A novel pneumatic recovery device in an oil mist lubrication system. A filter element chamber 1 is arranged in a recovery box body a. A vacuum pump chamber 6 is arranged on one side of the filter element chamber 1. A vacuum pump device 604 is fixedly installed in the vacuum pump chamber 6. The filter element chamber 1 and the vacuum pump chamber 6 are connected and communicated through the vacuum pump device 604. An exhaust cavity 7 is arranged in the vacuum pump chamber 6. A pre-filter chamber 2 and a post-filter chamber 3 are arranged below the filter element chamber 1. The pre-filter chamber 2 and the post-filter chamber 3 are independently partitioned. The pre-filter chamber 2 is communicated with the exhaust cavity 7. The post-filter chamber 3 is communicated with the filter element chamber 1. The pre-filter chamber 2 is communicated with the filter element chamber 1 through a filter element device 102. A post-filter oil tank 4 and a pre-filter oil tank 5 are arranged below the pre-filter chamber 2 and the post-filter chamber 3. The post-filter oil tank 4 is communicated with the post-filter chamber 3 through a second vacuum isolation valve 9. A first balance valve 401 is arranged on the post-filter oil tank 4. The pre-filter oil tank 5 is communicated with the exhaust cavity 7 through a first vacuum isolation valve. A second balance valve 501 is arranged on the pre-filter oil tank 5.

[0020] As Figure 3 shown in Figure 4 figures, a first ball valve 101 is arranged on the front side surface of the filter element chamber 1. A filter element device 102 is arranged on the bottom plate of the filter element chamber 1. The filter element device 102 is communicated with the pre-filter chamber 2. A through hole 103 is arranged on the bottom plate of the filter element chamber 1. The through hole 103 is communicated with the post-filter chamber 3. The first ball valve 101 is a standby valve and can discharge the air in the filter element chamber 1. The filter element device 102 can separate oil and gas to realize the recovery of oil mist.

[0021] As Figure 1 shown in Figure 2 figures, Figure 4As shown in the figure, an air intake device 701 and a third air valve 702 are provided on the front side plate of the discharge cavity 7. A connection channel 703 is opened on one side of the discharge cavity 7, and the connection channel 703 communicates with the pre-filter cavity 2. An exhaust device 603 is provided at the upper end of the vacuum pump cavity 6. A second ball valve 605 and a pressure valve 602 are provided on the front side plate of the vacuum pump cavity 6. An instrument air source device 601 is provided on the pressure valve 602, and the pressure valve 602 communicates with the vacuum pump device 604.

[0022] A first oil drain valve 402 is provided at the lower end of the post-filter oil tank 4, and a second oil drain valve 502 is provided at the lower end of the pre-filter oil tank 5.

[0023] The working process of the present utility model: The pressure valve and the instrument air source device are started, and a start signal is transmitted to the vacuum pump device 604. The vacuum pump device 604 is started, and the air in the filter element cavity 1 is pumped into the vacuum pump cavity. The filter element cavity 1 is in a negative pressure state. At this time, the recycled oil mist is conveyed into the discharge cavity 7 through the air intake device. The oil mist enters the pre-filter cavity 2 through the connection channel 703. Since the filter element cavity 1 is in a negative pressure state, the oil mist in the pre-filter cavity 2 is sucked into the filter element cavity 1 through the filter element device 102. When passing through the filter element device 102, the oil mist is separated. Part of the oil liquid remains in the pre-filter cavity and the discharge cavity, and part of the oil liquid remains in the filter element cavity 1 and flows into the post-filter cavity 3 through the through hole 103. Since the first vacuum isolation valve 8 and the second vacuum isolation valve 9 are in an open state, the oil liquid finally flows into the post-filter oil tank 4 and the pre-filter oil tank respectively. At this time, the pressures of the filter element cavity 1, the pre-filter cavity 2, the post-filter cavity 3, the post-filter oil tank 4, the pre-filter oil tank 5, the vacuum pump cavity 6, and the discharge cavity 7 are different, but they are all in a negative pressure state relative to the atmospheric pressure. At this time, it is impossible to open the first oil drain valve 402 and the second oil drain valve 502 to drain the oil liquid.

[0024] When it is necessary to drain the oil liquid, the first vacuum isolation valve 8 and the second vacuum isolation valve 9 are closed, separating the post-filter cavity 3 from the post-filter oil tank 4 and the pre-filter cavity 2 from the pre-filter oil tank 5 respectively. In this way, the pre-filter cavity 2 and the post-filter cavity 3 can temporarily continue to recycle the oil mist without shutting down the vacuum pump device 604. At this time, the first balance valve 401 and the second balance valve 501 are opened, and the negative pressure in the post-filter oil tank 4 and the pre-filter oil tank 5 is eliminated, and the oil liquid can be drained smoothly. The separated air is pumped into the vacuum pump cavity 6 by the vacuum pump device 604 and finally discharged from the exhaust device 603.

[0025] The foregoing has shown and described the basic principles, main features and advantages of the present utility model. For those skilled in the art, it is obvious that the present utility model is not limited to the details of the above-described exemplary embodiments, and without departing from the spirit or basic features of the present utility model, the present utility model can be implemented in other specific forms. Therefore, in any aspect, the embodiments should be regarded as exemplary and non-limiting. The scope of the present utility model is defined by the appended claims rather than the above description. Therefore, it is intended to embrace all changes within the meaning and scope of the equivalent elements of the claims in the present utility model.

[0026] In addition, it should be understood that although this specification is described in terms of embodiments, not every embodiment only contains an independent technical solution. This narrative manner of the specification is only for clarity. Those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A novel pneumatic recovery device in an oil mist lubrication system, comprising a recovery box body, and a filter element chamber is arranged in the recovery box body, characterized in that, One side of the filter element chamber is provided with a vacuum pump chamber, and a vacuum pump device is fixedly installed in the vacuum pump chamber. The filter element chamber and the vacuum pump chamber are connected and communicated through the vacuum pump device. An evacuation chamber is arranged in the vacuum pump chamber. A pre-filter chamber and a post-filter chamber are arranged below the filter element chamber. The pre-filter chamber and the post-filter chamber are independently partitioned from each other. The pre-filter chamber is communicated with the evacuation chamber, and the post-filter chamber is communicated with the filter element chamber. The pre-filter chamber is communicated with the filter element chamber through a filter element device. A post-filter oil tank and a pre-filter oil tank are arranged below the pre-filter chamber and the post-filter chamber. The post-filter oil tank is communicated with the post-filter chamber through a second vacuum isolation valve, and a first balance valve is arranged on the post-filter oil tank. The pre-filter oil tank is communicated with the evacuation chamber through a first vacuum isolation valve, and a second balance valve is arranged on the pre-filter oil tank.

2. The novel pneumatic recovery device in the oil mist lubrication system according to claim 1, characterized in that, A first ball valve is arranged on the front side surface of the filter element chamber, and a filter element device is arranged on the bottom plate of the filter element chamber. The filter element device is communicated with the pre-filter chamber. A through hole is arranged on the bottom plate of the filter element chamber, and the through hole is communicated with the post-filter chamber.

3. The novel pneumatic recovery device in the oil mist lubrication system according to claim 1, wherein An air inlet device and a third air valve are arranged on the front side plate of the evacuation chamber. A connection channel is opened on one side of the evacuation chamber, and the connection channel is communicated with the pre-filter chamber.

4. The novel pneumatic recovery device in the oil mist lubrication system according to claim 1, wherein An exhaust device is arranged at the upper end of the vacuum pump chamber. A second ball valve and a pressure valve are arranged on the front side plate of the vacuum pump chamber. An instrument air source device is arranged on the pressure valve, and the pressure valve is communicated with the vacuum pump device.

5. The novel pneumatic recovery device in the oil mist lubrication system according to claim 1, characterized in that, A first oil drain valve is arranged at the lower end of the post-filter oil tank, and a second oil drain valve is arranged at the lower end of the pre-filter oil tank.

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