KR20110057973A - A sampling device for gas phase oil - Google Patents

Abstract

PURPOSE: A gaseous oil sample device is provided to sample gaseous oil even from high-pressure gas by reducing the flux of gas through a perforated net installed separate from a filter. CONSTITUTION: A gaseous oil sample device comprises an inlet pipe(20), an expansion chamber(30) which expands the flow path in order to reduce the flux of gas drawn in through the inlet pipe, a discharge pipe(40) which discharges gas from the expansion chamber, and a bypass pipe(50) which is connected between the inlet pipe and the discharge pipe and discharges gas not to pass through the expansion chamber.

Description

Gas phase oil sampling device {A SAMPLING DEVICE FOR GAS PHASE OIL}

The present invention relates to a gaseous oil sampling device, and more particularly, comprising a chamber in which a flow path is expanded to measure an amount of oil in a gaseous state, wherein the expansion chamber partitions the flow path by a filter, and a rear surface of the filter. In order to increase the filtering effect by installing a mesh and a perforated network sequentially, the filter support and the gas passing rate are temporarily delayed. In particular, the present invention relates to a sampling device that improves the reliability of gas phase oil measurement by delaying the high-pressure gas flow rate by the expanded chamber and the buffer space between the mesh and the perforated network.

In general, various gases used in various industrial and everyday life, such as natural gas, breathing compressed air, general gas may include gaseous oil.

Such gaseous oils may increase the defect rate of the product or shorten the life of the parts depending on the field, and may be harmful to the respiratory system. In other words, in the case of gas used in the manufacturing of precision devices such as semiconductors, excessive oil content degrades semiconductor quality, and respiratory compressed air may cause lung disease or other human diseases caused by excessive inhalation of oil. In the case of a vehicle using gas as a fuel, an oil component may be ignited in the engine, thereby causing a problem of lowering engine life. Therefore, there is a need for a device capable of determining whether or not suitable for use by measuring the content of the gaseous oil component contained in the gas.

Patent Registration No. 0283214 (registered on December 6, 2000) proposes an oil amount measuring apparatus included in blow-by gas. The known oil amount measuring device has a blow-by gas suction pipe 5 and a discharge pipe 6 as shown in FIG. 7 and has an oil drain hole at the bottom thereof, so that the oil contained in the blow-by gas can be condensed. A blow-by gas stagnation chamber (1) having a coolant pipe (7) disposed therein, and having a freshly shaped plate (8) having a through hole at the upper portion of the oil drain hole to drain the oil; An oil drain cock (2) for draining oil while descending by oil weight to a spring provided in the plate (8) of the blow-by-gas stagnation chamber (1); The oil storage chamber 9 installed inside the base 3 supporting the blow-by gas stagnation chamber 1 and containing oil is connected to the lower surface of the blow-by-gas stagnation chamber 1 by a corrugated pipe, It was made to block the, it is composed of an electronic balance (4) to measure the amount of oil contained in the blow-by gas.

The apparatus collects blow-by gas generated when the engine is running, and collects oil components by condensation of the gas. This collection method is to receive from a gas containing a relatively large amount of oil components, the collection method is not suitable in the field requiring precise measurement, such as semiconductor gas and human intake gas.

Therefore, there is a need for a device that can measure the oil content from a gas containing finely gaseous oil components.

The gas phase oil sampling device according to the present invention,

The gas containing the gaseous oil is passed through the filter so that the gaseous oil component is adsorbed on the filter and separated from the gas so that the content of gaseous oil per unit volume can be measured. It is an object of the present invention to provide a sampling device to prevent stripping or bending under pressure.

Another object of the present invention is to provide a perforated network at a position spaced apart from the filter by lowering the flow rate of the gas passing through the filter so that gaseous oil can be collected even if the gas pressure is high.

Gas phase oil sampling device of the present invention for solving the above problems,

Claims [1] A sampling device for measuring a gaseous oil content in a gas, comprising: an injection tube receiving a gas; An expansion chamber configured to expand the flow path to reduce the flow rate of the gas injected into the injection pipe, and to adsorb and separate the gaseous oil in the gas passing through a filter mounted therein; A discharge pipe for discharging the gas of the expansion chamber; And a bypass tube connected at both ends of the injection tube and the discharge tube to discharge the injected gas without passing through the expansion chamber.

As described in detail above, the gas phase oil sampling device of the present invention,

The gas containing the gaseous oil is passed through the filter so that the gaseous oil component is adsorbed to the filter and separated from the gas so that the content of the gaseous oil per unit volume can be measured. It is possible to provide a sampling device that prevents the removal and bending due to the pressure of the gas.

In addition, the gas phase oil sampling device of the present invention can provide a useful device that can collect the gas phase oil component even in the gas having a high pressure by reducing the flow rate of the gas passing through the perforated network spaced apart from the filter at a predetermined interval. .

Hereinafter, a gas phase oil sampling device according to the present invention will be described in detail with the accompanying drawings.

1 is a plan view of a gas phase oil sampling device according to the present invention, Figure 2 is a cross-sectional view showing an expansion chamber according to the present invention, Figure 3 is a partially enlarged cross-sectional view of the mesh according to the present invention, Figure 4 is the present invention Figure 5 is a cross-sectional view showing an expansion chamber according to another embodiment of Figure 5 is an enlarged cross-sectional view of the main portion of Figure 4, Figure 6 is a schematic diagram showing a fixed clamp according to an embodiment of the present invention.

As illustrated, the gaseous oil sampling device 10 of the present invention includes a gas storage container, an injection pipe 20 connected to a pipe through which gas is moved, and receiving gas, and an oil in a gas injected with a filter installed therein. An expansion chamber 30 for filtering the components, a discharge pipe 40 for discharging the gas passing through the filter of the expansion chamber, and a bypass pipe 50 for discharging the initially injected gas without passing through the expansion chamber, It is composed.

The expansion chamber 30 temporarily expands the flow path through which the gas to be measured passes to reduce the gas flow rate, and simultaneously mounts a filter 33 therein to vaporize the contact area between the filter and the gas. The filter 33 partitions the internal space of the expansion chamber 30 so that the introduced gas passes through the filter to be discharged. Therefore, the gaseous oil contained in the gas to be passed is separated from the main gas supplied by being adsorbed to the filter, and after supplying a certain amount of gas, the filter is removed to extract the oil component adsorbed to the filter, thereby comparing the gaseous oil with the supply amount. The component content can be measured.

In this way, the expansion chamber 30 is separated into an injection chamber 31 in which the flow path is gradually expanded, and a discharge chamber 32 in which the flow path is gradually reduced, so that the filter 33 can be easily attached and detached. 37) is firmly fixed.

The fixed clamp has a structure that can be rotated by a hinge as shown in Figure 6 and a fastener 371 is formed on one side to firmly grip the connecting portions of the two chambers to be separated.

In addition, the filter 33 may be applied to a variety of filters capable of adsorptive separation of the gaseous oil component, it is preferable to use a membrane filter in order to precisely remove the separation.

In addition, the filter 33 is pushed to the rear side because the high pressure acts upon the passage of gas. In this way, when the filter is pushed, the load is concentrated on one side to which the filter is fixed, thereby causing the filter to be torn, thus making accurate measurement difficult.

Accordingly, as shown in the drawing, the mesh 34 is mounted on the rear surface of the filter 33 to prevent the filter from being pushed backward by the gas pressure and to prevent the gas from being deflected to one side by the inclined filter surface. Ensure uniform gas discharge through the front of the filter.

The mesh 34 may be formed on the stepped end by forming step (311, 321) inside the end contacting the injection chamber 31 and the discharge chamber 32 as shown in Figure 3 to fix the installation position. In addition, the side of the mesh 34 is equipped with a packing 38 along the circumference, so that the packing seals between the side of the mesh 34 and the stepped chambers 311 and 321 of the injection chamber and the discharge chamber to discharge the gas inside the chamber to the outside. To prevent it.

The mesh 34 may be installed through the tray 36.

As shown in FIGS. 4 and 5, a multi-stage step 311, 321 is formed inside the end portion of the expansion chamber 30 in contact with the injection chamber 31 and the discharge chamber 32 to form the tray 36 of a round tube. Allow it to be placed. The tray 36 may be easily mounted by allowing both side ends of the outer surface to correspond to the multi-stepped jaws formed in the injection chamber and the discharge chamber, and the packing 38 may be mounted along the circumference of the side to provide internal gas. To prevent it from being discharged to the outside.

In addition, a tray step 361 may also be formed at the end of the injection pipe portion of both ends of the inner surface of the tray 36 so that the mesh 34 and the filter 33 may be sequentially placed. In this case, the mesh and the filter may be partially inserted into the step 311 of the injection chamber 31 so that position fixing may be performed.

In addition, the perforated network 35 may be further installed in the expansion chamber 30. The perforated network is installed to be spaced apart from the rear surface of the mesh 34 by a predetermined distance so that the flow rate is temporarily lowered by the perforated network to lower the filter passing rate to increase the adsorption rate of gaseous oil to the filter. Therefore, the through holes formed in the perforated network are preferably formed at intervals that can resist the flow rate of the gas.

The perforated network 35 is installed directly in the discharge chamber 32, or as shown in Figures 4 and 5 between the tray stepping jaw 361 formed on one side of the tray and the stepping jaw 321 of the discharge chamber. It can be positioned so that a fixed installation can be made.

Meanwhile, as shown in FIG. 1, a gas injection control valve 21 may be installed in the injection pipe 20 to control the injection pipe or adjust the amount of gas supplied into the injection pipe 20. In addition, the injection pipe 20 may be installed between the gas injection control valve 21 and the expansion chamber 30 to measure the amount of injected gas.

In addition, the gaseous oil sample collecting device 10 of the present invention may be provided with a bypass pipe 50 so that the gas discharged during the initial driving may be discharged without passing through the expansion chamber 30. As shown in the bypass pipe 50, one end and the other end of the bypass pipe 50 communicate with the injection pipe 20 and the discharge pipe 40, respectively, and control valves 51 and 52 are provided at portions adjacent to the injection pipe and the discharge pipe, respectively. To prevent cracking.

In addition, the bypass pipe 50 is preferably branched from the injection pipe to the branch before the flow meter and the gas injection control valve of the injection pipe is installed so that the bypass of the gas is made.

In addition, an intermittent valve 41 may be installed between the expansion chamber and the conduit of the discharge pipe and the bypass pipe to block the valve 41 when the gas is bypassed, thereby preventing the bypassed gas from entering the expansion chamber. Can be.

The operation of the gaseous oil sampling device of the present invention will be briefly described with reference to FIGS. 1 and 4.

First, the gas to be measured is supplied through the injection tube 20. At this time, the gas injection control valve 21 of the injection pipe and the control valve 41 of the discharge pipe 40 is blocked, and the initial gas supplied by opening the control valves 51 and 52 installed in the bypass pipe 50 is Allow discharge through the bypass pipe.

After discharging a certain amount of gas, the gas injection control valve 21 and the discharge valve 40 of the discharge pipe 40 are opened, and the control valves 51 and 52 of the bypass pipe are blocked to block the gas. To feed). At this time, the amount of gas supplied to the expansion chamber is measured by the flow meter 22, the gas injection control valve 21 to adjust the degree of locking to adjust the amount of gas supplied to the expansion chamber.

The gas supplied to the injection pipe 20 flows into the expansion chamber 30, and the gaseous oil contained in the gas is adsorbed and separated on the filter while passing through the filter 33 installed in the expansion chamber.

At this time, the filter 33 is subjected to gas pressure from the front surface, but is supported by the mesh 34 positioned on the rear surface can prevent the filter from bending. Therefore, it is possible to evenly pass the gas to the filter front surface by preventing the pressure from being drawn to any one side by the bending.

In addition, the perforated network 35 reduces the unit area through which the gas is moved to limit the amount of gas passing through the perforated network so that the gas between the perforated network and the mesh 34 is delayed and discharged. This delay causes the flow rate of the gas passing through the filter 33 to be lowered so that the gas passes slowly through the filter 33, thereby further increasing separation efficiency due to an increase in the contact time between the gaseous oil and the filter.

Gas passing through the perforated network 35 is discharged through the discharge pipe (40).

When the amount of gas supplied to the expansion chamber is appropriate, the gas injection control valve is interrupted to block the gas inflow into the expansion chamber, and the gas supply is also blocked.

Opening the fixed clamp 37 to separate the expansion chamber, remove the tray 36 inside the filter 33 is separated by measuring the amount of oil sample through the extraction process of the gaseous oil adsorbed on the filter.

Therefore, the content of gaseous oil per unit area can be precisely measured by the flow meter and the extracted oil amount.

1 is a plan view of a gas phase oil sampling device according to the present invention.

2 is a cross-sectional view showing an expansion chamber according to the present invention.

3 is a partially enlarged cross-sectional view of a mesh according to the present invention.

4 is a cross-sectional view showing an expansion chamber according to another embodiment of the present invention.

5 is an enlarged cross-sectional view of a main part of FIG. 4;

Figure 6 is a schematic diagram showing a fixing clamp of the present invention.

Figure 7 is a schematic diagram showing a conventional oil extraction device.

<Description of the symbols for the main parts of the drawings>

10: sample collection device

20: injection tube

21 gas injection control valve 22 flow meter

30: expansion chamber

31: injection chamber 32: discharge chamber

33: filter 34: mesh

35: perforated network 36: tray

37: fixing clamp 38: packing

311,321: step 361: tray step

371: fastener

40: discharge pipe

41,51,52: intermittent valve

50: bypass tube

Claims (5)

In the sampling device for measuring the gaseous oil content in the gas, An injection tube 20 for receiving gas; An expansion chamber (30) which expands the flow path so as to reduce the flow rate of the gas injected into the injection pipe and mounts a filter (33) therein to adsorb and separate the gaseous oil in the gas passing therethrough; A discharge pipe 40 for discharging the gas of the expansion chamber; And a bypass tube (50) connected at both ends of the injection pipe and the discharge pipe to discharge the injected gas without passing through the expansion chamber. The method of claim 1, The expansion chamber 30, The injection chamber 31 is gradually divided into an injection chamber 31 and the discharge chamber 32 is gradually reduced in size, and the stepped surfaces 311 and 321 are formed in the separated surface to settle the mesh 34, A filter 33 is placed on the surface of the injection hole to prevent the mesh from being removed or sag under the gas pressure. A fixing clamp 37 is mounted on the injection chamber and the outer surface of the discharge chamber, so that the injection chamber and Gas phase oil sampling device characterized in that the exhaust chamber is firmly combined to prevent internal gas leakage. The method of claim 1, The expansion chamber 30, The injection chamber 31 is gradually divided into an injection chamber 31 and the discharge chamber 32 is gradually reduced in size, and the step is formed in the separated surface step (311, 321), the step 36 is a round tube body tray 36 In the tray, one side of the tray forms a tray step 361 along the inner circumferential surface to settle the mesh 34 on the tray step, and one side in the direction of the injection tube of the mesh is placed a filter 33 on the mesh A gaseous oil sampling device characterized in that the filter is supported to prevent separation or sagging under gas pressure, and a fixed clamp 37 is mounted on the outer surfaces of the injection chamber and the discharge chamber so that internal gas is not leaked. . The method according to claim 2 or 3, The perforated network 35 is installed in the discharge portion of the expansion chamber 30 so as to be spaced apart from the back of the mesh to temporarily lower the gas flow rate to increase the adsorption rate of the filter. The method of claim 1, The bypass pipe 50 is provided with a control valve (51, 52) to the portion adjacent to the discharge pipe and the injection pipe to control the flow path of the bypass pipe 50, respectively, The injection pipe 20 has a gas injection control valve 21 and a flow meter 22 installed between the branch point of the bypass pipe and the expansion chamber to adjust the amount of gas injected into the expansion chamber and check the amount of injection gas. Gas phase oil sampling device.

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