CN211310938U - Multistage oil-water separation system of air compressor - Google Patents
Multistage oil-water separation system of air compressor Download PDFInfo
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- CN211310938U CN211310938U CN201920812812.4U CN201920812812U CN211310938U CN 211310938 U CN211310938 U CN 211310938U CN 201920812812 U CN201920812812 U CN 201920812812U CN 211310938 U CN211310938 U CN 211310938U
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Abstract
Air compressor multistage oil-water separation system includes dashpot, oil water separator, oil interceptor, oil removal tank, oil extraction pump, oil drum, underground tank, oil water pump, the separator that stews, the top of dashpot is equipped with the blow-down gas pipeline, the liquid outlet of dashpot passes through the pipeline intercommunication with oil water separator's inlet, oil water separator's oil-out passes through the pipeline intercommunication with oil interceptor's top, oil removal tank's oil-out and oil extraction pump's inlet intercommunication, oil extraction pump's liquid outlet and oil drum intercommunication, oil interceptor's bottom still passes through the linker intercommunication with underground tank, underground tank still passes through the pipeline intercommunication with oil water pump's inlet, oil water pump's liquid outlet and the separator intercommunication that stews. The buffer tank can save the oil drainage water of the compressor to prevent that the oil drainage flow is all gushed into the oil-water separator when great, and the lower liquid separated by the oil-water separator passes through the separation of the oil separation tank and the standing separator again, so that the purity of separation can be further improved, and the oily wastewater is more thoroughly separated.
Description
Technical Field
The utility model relates to an air compressor technical field especially relates to an air compressor multistage oil-water separation system.
Background
The air compressor oil-water separator is mainly used for treating air compressor condensate oil-containing wastewater, the oil-containing wastewater enters the oil-water separator for two-stage separation, and the air compressor oil-containing wastewater treatment device is mainly applied to various air compressor oil-containing wastewater and other industry oil-containing wastewater. The oil-water separator carries out layering through standing, and the longer the time is, the more obvious the layering effect is. The compressor condensate oily wastewater is not generated continuously, and the amount generated in unit time is different. And the volume of the oil-water separator is small, and the accommodating space is limited. In the case of a large amount of oily wastewater, the lower liquid in the oil-water separator is discharged without being completely separated. Along with the improvement of the purity requirement of the oil-water separator by enterprises, the separation effect of the oil-water separator cannot meet the requirements of the enterprises.
Disclosure of Invention
In view of this, it is necessary to provide a multistage oil-water separation system of an air compressor with a good oil-water separation effect.
A multi-stage oil-water separation system of an air compressor comprises a buffer tank, an oil-water separator, an oil separation tank, an oil discharge pump, an oil drum, an underground tank, an oil-water pump and a standing separator, wherein oily wastewater enters the buffer tank through a pipeline, an air discharge pipeline is arranged at the top of the buffer tank to discharge air in the oily wastewater, a liquid outlet of the buffer tank is communicated with a liquid inlet of the oil-water separator through a pipeline, an oil outlet of the oil-water separator is communicated with the top of the oil separation tank through a pipeline, liquid entering the oil separation tank is divided into two layers, the oil separation tank is provided with an oil outlet, the oil outlet of the oil separation tank is communicated with a liquid inlet of the oil discharge pump, a liquid outlet of the oil discharge pump is communicated with the oil drum to discharge upper-layer liquid in the oil separation tank into the oil drum, the bottom of the oil separation tank is communicated with the underground tank through a communicator to discharge lower-layer liquid in the oil separation tank into the underground, the liquid outlet of the oil-water pump is communicated with the standing separator to discharge liquid in the underground tank into the standing separator, the standing separator is provided with an oil outlet and a water outlet, the oil outlet of the standing separator is communicated with the oil drum, and the outlet of the standing separator is communicated with an external sewage station.
Preferably, the multistage oil-water separation system of the air compressor further comprises a control device, the control device comprises a first liquid level sensor, a first control valve, a second liquid level sensor, a third liquid level sensor and a controller, the first liquid level sensor, the first control valve, the second liquid level sensor and the third liquid level sensor are electrically connected with the controller, the first liquid level sensor is arranged in the buffer tank to collect liquid level information in the buffer tank and transmit the liquid level information to the controller, the first control valve is arranged at a water outlet of the buffer tank to control the outflow of liquid in the buffer tank, the second control valve is arranged on a pipeline between the oil-water separator and the oil separation tank to control the outflow of liquid in the oil-water separator, the second liquid level sensor is arranged in the oil separation tank to collect liquid level information in the oil separation tank and transmit the liquid level information to the controller, the third liquid level sensor is arranged in the underground tank to collect liquid level information in the underground tank and transmit the liquid level information to the controller, and the controller is further electrically connected with the oil discharge pump and the oil water pump to control the operation of the oil discharge pump and the oil water pump.
Has the advantages that: the utility model discloses an air compressor multistage oil-water separation system includes the dashpot, oil water separator, the oil interceptor, the oil extraction pump, the oil drum, the underground tank, the oil-water pump, the separator stews, the dashpot can be saved the oil extraction water of compressor, in order to prevent that oil extraction discharge flow is whole to flush oil water separator when great, cause oil-water separation effect variation, the lower liquid through oil water separator separation passes through the oil interceptor again, the separation of separator stews, can further improve the purity of separation, make oily waste water more thoroughly by separating.
Drawings
Fig. 1 is a process flow diagram of the multistage oil-water separation system of the air compressor of the present invention.
Fig. 2 is the working principle diagram of the multistage oil-water separation system of the air compressor of the present invention.
Fig. 3 is a control block diagram of the multistage oil-water separation system of the air compressor of the present invention.
In the figure: buffer tank 10, air release pipeline 101, oil-water separator 20, oil separation tank 30, communicating vessel 301, oil drain pump 40, oil drum 50, underground tank 60, oil-water pump 70, separator 80 that stews, controlling means 90, first level sensor 901, first control valve 902, second control valve 903, second level sensor 904, third level sensor 905, controller 906.
Detailed Description
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without creative efforts.
Referring to fig. 1 to 3, an air compressor multistage oil-water separation system includes a buffer tank 10, an oil-water separator 20, an oil separation tank 30, an oil discharge pump 40, an oil drum 50, an underground tank 60, an oil-water pump 70, and a standing separator 80, wherein the oily wastewater enters the buffer tank 10 through a pipeline, an air discharge pipeline 101 is disposed at the top of the buffer tank 10 to discharge air in the oily wastewater, an oil outlet of the buffer tank 10 is communicated with an inlet of the oil-water separator 20 through a pipeline, an oil outlet of the oil-water separator 20 is communicated with the top of the oil separation tank 30 through a pipeline, liquid entering the oil separation tank 30 is divided into two layers, the oil separation tank 30 is provided with an oil outlet, the oil outlet of the oil separation tank 30 is communicated with an inlet of the oil discharge pump 40, an oil outlet of the oil discharge pump 40 is communicated with the oil drum 50 to discharge upper layer liquid in the oil separation tank 30 into the oil drum 50, the bottom of the oil separation tank 30 is further communicated with the, the lower-layer liquid of the oil separation tank 30 is discharged into the underground tank 60, the underground tank 60 is further communicated with a liquid inlet of the oil-water pump 70 through a pipeline, a liquid outlet of the oil-water pump 70 is communicated with the standing separator 80, so that the liquid in the underground tank 60 is discharged into the standing separator 80, the standing separator 80 is provided with an oil outlet and a water outlet, the oil outlet of the standing separator 80 is communicated with the oil drum 50, and an outlet of the standing separator 80 is communicated with an external sewage station.
For prior art's oil-water separator 20, the utility model discloses an air compressor multistage oil-water separation system makes the degree of oily waste water separation higher through multi-stage separation. The air compressor generally generates oily wastewater during operation, and thus the amount of oily wastewater entering the oil-water separator 20 is not very stable. If the flow rate of the oily wastewater entering the oil-water separator 20 is large, the oil-water separator 20 is filled with liquid quickly, and water needs to be discharged as soon as possible in order to separate the subsequent oil and water in time. Generally, the longer the standing time, the more complete separation of oil and water is possible. If the separated liquid is discharged early, the separation is incomplete and the bottom layer contains a lot of oil. If the flow rate of the wastewater containing water entering the oil water separator 20 is small, it takes a long time to fill the oil water separator 20 with the liquid, resulting in a waste of time. The utility model discloses a multistage oil-water separation system of air compressor is equipped with the buffer pool, can guarantee that the flow of the liquid that gets into oil water separator 20 is stable all the time to be favorable to the separation of profit. The oil-water separator 20 separates oil from water, but because of the structural limitation of the oil-water separator 20, it is not ensured that water flows out from the water outlet. It is possible that the liquid in the oil or emulsion layer will also flow out with the aqueous layer. The utility model discloses an oil interceptor 30 and underground tank 60 cooperate, and the liquid that gets into oil interceptor 30 further stews again, makes oil-water separation. Wherein, the upper layer liquid is discharged to the oil drum 50 by the oil discharge pump 40, and the lower layer liquid enters the underground groove 60 under the action of the communicating vessel 301. Because the lower layer of oil body may not meet the purity requirement, the liquid in the underground tank 60 is pumped to the standing separator 80 by the oil-water pump 70 for separation, the upper layer of liquid in the standing separator 80 is discharged into the oil drum 50, and the lower layer of liquid is discharged into the sewage station.
Further, the multistage oil-water separation system of the air compressor further comprises a control device 90, the control device 90 comprises a first liquid level sensor 901, a first control valve 902, a second control valve 903, a second liquid level sensor 904, a third liquid level sensor 905 and a controller 906, the first liquid level sensor 901, the first control valve 902, the second control valve 903, the second liquid level sensor 904 and the third liquid level sensor 905 are electrically connected with the controller 906, the first liquid level sensor 901 is arranged in the buffer tank 10 to collect liquid level information in the buffer tank 10 and transmit the liquid level information to the controller 906, the first control valve 902 is arranged at a water outlet of the buffer tank 10 to control the outflow of liquid in the buffer tank 10, the second control valve 903 is arranged on a pipeline between the oil-water separator 20 and the oil separation tank 30 to control the outflow of liquid in the oil-water separator 20, the second liquid level sensor 904 is arranged in the oil separation tank 30, so as to collect and transmit the liquid level information in the oil separation tank 30 to the controller 906, and a third liquid level sensor 905 is provided in the underground tank 60 so as to collect and transmit the liquid level information in the underground tank 60 to the controller 906.
Specifically, the first liquid level sensor 901 collects liquid level information of the buffer tank 10 and transmits the liquid level information to the controller 906 in the form of an electric signal, the controller 906 generates a real-time first liquid level value, and meanwhile, the controller 906 is further provided with a first low liquid level reference value and a first high liquid level reference value. When the real-time first level value is lower than the first low level reference value, the controller 906 controls the first control valve 902 to close; when the real-time first service value is higher than the first high level reference value, the controller 906 controls the first control valve 902 to open.
The second liquid level sensor 904 collects the liquid level information of the oil separation tank 30 and transmits the liquid level information to the controller 906 in the form of an electric signal, the controller 906 generates a real-time second liquid level value, and meanwhile the controller 906 is further provided with a second high liquid level reference value. When the real-time first level value is higher than the second high level reference value, the controller 906 controls the oil discharge pump 40 to start to pump oil to the oil drum 50.
The third level sensor 905 collects level information of the underground tank 60 and transmits the level information to the controller 906 in the form of an electrical signal, and the controller 906 generates a real-time third level value. When the real-time third level value is equal to the real-time second level value, the controller 906 controls the oil discharge pump 40 to be turned off, and simultaneously the controller 906 controls the oil water pump 70 to be turned on to discharge the liquid in the underground tank 60 into the still standing separator 80. Meanwhile, the controller 906 is further provided with a third low level reference value, and when the real-time third level value is lower than the third low level reference value, the controller 906 controls the oil-water pump 70 to be turned off.
Since oil is less dense than water. According to the principle of the communicating vessel 301, when the oil separation tank 30 is left standing for a certain period of time, the liquid level in the oil separation tank 30 is higher than the liquid level in the underground tank 60. In this way, it is ensured that all the liquid discharged from the drain pump 40 is oil. When the oil is drained to the oil separation tank 30 and the liquid phase in the underground groove 60 are equal, the oil is drained completely, and the rest is water. At this time, the oil-water pump 70 is turned on, so that all the liquid in the underground tank 60 and the oil separation tank 30 is pumped into the still standing separator 80. The oil and water are further separated by the action of the still standing separator 80.
In order to make the separation effect more remarkable, the monitoring personnel can set the oil separating tank and the standing time in the standing separator 80 according to actual conditions. And when the preset standing time is reached, draining the liquid.
While the invention has been described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention.
Claims (2)
1. Multistage oil-water separation system of air compressor, its characterized in that: the oil separator comprises a buffer tank, an oil-water separator, an oil separation tank, an oil discharge pump, an oil drum, an underground tank, an oil-water pump and a standing separator, wherein oily wastewater enters the buffer tank through a pipeline, an air discharge pipeline is arranged at the top of the buffer tank to discharge air in the oily wastewater, a liquid outlet of the buffer tank is communicated with a liquid inlet of the oil-water separator through a pipeline, an oil outlet of the oil-water separator is communicated with the top of the oil separation tank through a pipeline, liquid entering the oil separation tank is divided into two layers, the oil separation tank is provided with an oil outlet, the oil outlet of the oil separation tank is communicated with a liquid inlet of the oil discharge pump, a liquid outlet of the oil discharge pump is communicated with the oil drum to discharge upper liquid in the oil separation tank into the oil drum, the bottom of the oil separation tank is communicated with the underground tank through a communicator to discharge lower liquid in the oil separation tank into the underground tank, the underground tank is also communicated with a liquid inlet of the oil, the standing separator is provided with an oil outlet and a water outlet, the oil outlet of the standing separator is communicated with the oil drum, and the outlet of the standing separator is communicated with an external sewage station.
2. The air compressor multistage oil-water separation system of claim 1, wherein: the air compressor multistage oil-water separation system further comprises a control device, the control device comprises a first liquid level sensor, a first control valve, a second liquid level sensor, a third liquid level sensor and a controller, the first liquid level sensor, the first control valve, the second liquid level sensor and the third liquid level sensor are electrically connected with the controller, the first liquid level sensor is arranged in the buffer tank to collect liquid level information in the buffer tank and transmit the liquid level information to the controller, the first control valve is arranged at a water outlet of the buffer tank to control the outflow of liquid in the buffer tank, the second control valve is arranged on a pipeline between the oil-water separator and the oil separation tank to control the outflow of liquid in the oil-water separator, the second liquid level sensor is arranged in the oil separation tank to collect liquid level information in the oil separation tank and transmit the liquid level information to the controller, the third liquid level sensor is arranged in an underground tank, the underground tank is used for collecting liquid level information in the underground tank and transmitting the liquid level information to the controller, and the controller is further electrically connected with the oil discharge pump and the oil water pump so as to control the oil discharge pump and the oil water pump to operate.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201920812812.4U CN211310938U (en) | 2019-05-31 | 2019-05-31 | Multistage oil-water separation system of air compressor |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201920812812.4U CN211310938U (en) | 2019-05-31 | 2019-05-31 | Multistage oil-water separation system of air compressor |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI843224B (en) * | 2022-10-05 | 2024-05-21 | 國立聯合大學 | Oil-water separation device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI843224B (en) * | 2022-10-05 | 2024-05-21 | 國立聯合大學 | Oil-water separation device |
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