JPS6153098B2 - - Google Patents

Description

[Detailed Description of the Invention] [Field of Application of the Invention] The present invention effectively separates the lubricating oil of expansion turbines and compressors employing oil bearings from the gas body used in oil seals, etc., and recovers the oil. The present invention relates to oil separation equipment.

[Background of the Invention] Conventionally, there are many types of oil separation devices of this type, such as cyclone type and those using adsorbents such as gel, but in the case of cyclone type, the device is large-scale and manufacturing cost is high. Furthermore, those that use adsorbents have the disadvantage of causing various problems in terms of maintenance, such as increased pressure loss and replacement of the adsorbent.

[Purpose of the invention]

An object of the present invention is to provide a simple, inexpensive oil separation device that is less affected by oil and exhaust gas flow rates and does not require an oil adsorbent such as gel.

[Summary of the invention]

The present invention provides an oil separation tank provided with an exhaust gas inlet pipe and an oil separation tank provided with an exhaust gas outlet pipe, an exhaust gas inlet opened at one end with a diagonal cut on the opposite side of the exhaust gas inlet pipe, and the other Exhaust gas passage pipes each having an open exhaust gas outlet with a diagonal cut on the opposite side of the exhaust gas outlet pipe are inserted into the oil separation tank from above to form exhaust gas lines in series.

Hereinafter, one embodiment of the present invention will be described based on the drawings. In the figure, 1 and 2 are oil separation tanks, 3
4 is an exhaust gas inlet pipe into which oil and exhaust gas flow; 4 is an exhaust gas outlet pipe after the oil has been separated; 5 and 6 are exhaust gas passage pipes connecting the upper parts of the oil separation tanks 1 and 2; An exhaust gas inlet is formed by providing an oblique cut on the opposite side of the exhaust gas inlet pipe 3 so as to act as a buffer when oil and exhaust gas flow into the oil separation tank 1 from the inlet pipe 3. Similarly, the exhaust gas passage pipe 6 is also provided with an oblique cut on the side opposite to the mounting position of the exhaust gas outlet pipe 4 to form an exhaust gas outlet. Here, the exhaust gas lines are formed in series as shown. 7 and 8 are oil adhesion condensation materials (hereinafter referred to as condensation materials) provided near the inlet and outlet of the exhaust gas passage pipes 5 and 6, for example, wire mesh with low flow resistance, etc., are overlapped several times as necessary. use something Reference numerals 9 and 10 denote oil outlet pipes provided at the lower ends of the oil separation tanks 1 and 2, which are arranged in parallel and connected to an oil return collecting pipe 11. The oil return collecting pipe 11 is connected to an oil tank (not shown), and oil is recovered.

In the above configuration, for example, lubricating oil (hereinafter simply referred to as oil) for the expansion turbine or compressor, etc.
When the exhaust gas flows into the oil separation tank 1 from the arrow a through the exhaust gas inlet pipe 3, most of the oil flows through the arrow b.
The oil flows in the direction of the arrow e, passes through the oil return pipe 11 from the oil outlet pipe 9, and is recovered into the oil tank from the arrow j.

On the other hand, the exhaust gas in which some oil is suspended is guided as shown by arrow c, and flows from the exhaust gas passage pipe 5 through the exhaust gas passage pipe 6 into the oil separation tank 2. in this case,
Since the exhaust gas inlets and exhaust gas outlets of the exhaust gas passage pipes 5 and 6 are formed with diagonal cuts, the flow resistance of the exhaust gas is small, and when the exhaust gas passes through the condensing material 7, the oil floating in the exhaust gas is It adheres to the condensation material 7 and condenses, and drips in the direction of arrow d. Similarly, when passing through the condensing material 8, the condensed oil adhering to the condensing material 8 drips in the direction of the arrow h, and the oil exit pipe 1
0 in the direction of arrow j, passes through the oil return collecting pipe 11, and is completely collected into the oil tank. Thus, only the exhaust gas from which the oil has been separated is discharged from the arrow f through the exhaust gas outlet pipe 4 in the direction of the arrow g. Here, the exit direction of the exhaust gas passage pipe 6 and the inlet direction of the exhaust gas passage pipe 5 are out of phase by 180 degrees, and the flow velocity of the exhaust gas is also lowered to several tenths, so the density is lower than that of the exhaust gas. Larger oils drip downward and are separated with high efficiency.

〔Effect of the invention〕

As described above, the present invention provides an oil separation tank provided with an exhaust gas inlet pipe and an oil separation tank provided with an exhaust gas outlet pipe, and an oil separation tank provided with an exhaust gas inlet pipe and an oil separation tank provided with an exhaust gas outlet pipe. Exhaust gas passage pipes each having an inlet and an exhaust gas outlet opened at the other end with a diagonal cut on the opposite side of the exhaust gas outlet pipe are inserted into the oil separation tank from above to form an exhaust gas line in series. Since the oil contained in the exhaust gas is separated at the exhaust gas inlet and exhaust gas outlet of the exhaust gas passage pipe, it has a simple structure, low pressure loss, and is inexpensive and does not require an oil adsorbent. An oil separation device can be provided.

[Brief explanation of the drawing]

The drawing is a partially sectional front view showing an embodiment of the oil separation device according to the present invention. 1, 2...Oil separation tank, 3...Exhaust gas inlet pipe, 4
...Exhaust gas outlet pipe, 5, 6...Exhaust gas passage pipe,
7, 8... Material for oil adhesion and condensation, 9, 10... Oil outlet pipe, 11... Oil return collecting pipe.

Claims (1)

[Claims] 1. An oil separation tank 1 provided with an exhaust gas inlet pipe 3 and an oil separation tank 2 provided with an exhaust gas outlet pipe 4 are provided, and an oblique cut is provided at one end on the opposite side from the exhaust gas inlet pipe 3. Exhaust gas passage pipes 5 and 6 each having an open exhaust gas inlet and an open exhaust gas outlet provided with an oblique cut at the other end on the opposite side from the exhaust gas outlet pipe 4 are inserted into the oil separation tanks 1 and 2 from above, respectively. Insert the oil separation tank 1,
An oil separation device characterized in that oil outlet pipes 9 and 10 are provided at the lower part of the oil separator. 2. The oil separation device according to claim 1, wherein oil adhesion and condensation materials are provided near the inlets and outlets of the exhaust gas passage pipes 5 and 6.