KR101397569B1 - Sewage collection system having filter to prevent breakdown in vacuum lorry tank collecting excretion and sewage - Google Patents

Abstract

Disclosed in the present invention is a sewage collection system having a filter to prevent the breakdown of a vacuum tank of a vacuum lorry tank for collecting excrements and sewage. The sewage collection system comprises a circulation pipe whose one side is connected with the upper part of a vacuum lorry tank for storing collected sewage; a four-way valve which controls the flowing direction of air flowing in the circulation pipe; a vacuum pump which supplies or discharges air for adjusting a vacuum pressure inside the vacuum lorry tank flow into or from the vacuum lorry tank through the circulation pipe; and an air separator which is installed between the four-way valve and the vacuum pump in order to filter the air circulating through the four-way valve. The air separator has a cylindrical filter which filters foreign materials contained in the air circulating through the four-way valve in order to prevent the foreign materials contained in the air from the vacuum lorry tank from flowing into the vacuum pump. Therefore, the sewage collection system can improve the durability of a sewage collecting vehicle by preventing the inflow of foreign materials into the vacuum pump using cylindrical filters installed in the air separator and a main separator.

Description

TECHNICAL FIELD [0001] The present invention relates to a dust collecting system having a filter for preventing malfunction of a vacuum pump in a bucket tank for manure and dirt collecting,

The present invention relates to a dirt collecting system having a filter for preventing the failure of a vacuum pump in a bucket and dirt collecting bucket tank, and more particularly, to a dirt collecting system which operates when sucking / discharging dirt into a bucket and a dirt collecting bucket tank To a dust collecting system having a filter for preventing a foreign matter from flowing into a vacuum pump and failing the vacuum pump.

According to the conventional treatment method of manure, the manure in the toilet is mixed with the sewage and flows into the septic tank through a passage such as a drain pipe. Thereafter, the mixture of the manure and the wastewater flowing into the septic tank is stored in the septic tank for a predetermined period of time, is decomposed by the bacteria, is discharged to the sewage treatment plant through the drain pipe installed in the septic tank together with the wastewater, And sewage are discharged to the outside through the purification process.

However, in the case of the above-mentioned manure disposal method, a large amount of sludge (manure sludge) is generated in the septic tank where the manure is stored for a certain period of time and the disposal process of the manure is performed, As the sludge continues to accumulate because it can not be carried out in a short time, the sludge rinsing phenomenon occurs.

If such rubbing phenomenon persists, normal functioning of the septic tank becomes impossible. The fact that the normal functioning of the septic tank can not be performed means that the manure that has not completely decomposed is introduced into the sewage treatment plant and the sewage treatment plant can not purify the sludge as well. Therefore, incompletely purified manure and sewage are discharged to the outside There is a problem that pollution of the environment may be caused. In addition, there is a problem that the function of the septic tank is lost as the septic tank is no longer able to store manure and wastewater by the sludge.

To solve these problems, sludge generated in the septic tank is collected periodically through a dirt collecting vehicle to prevent the sludge from overflowing and to perform normal functions of the septic tank.

The dirt collecting vehicle collects not only sludge in the septic tank but also various kinds of wastewater and the like using a high vacuum pressure into a manure tank for collecting manure and dirt. A level window for checking the level of dirt is formed inside the bucket tank, It consists of various components such as piping, air separator, buzzard tank, and vacuum pump for sucking into the buzzard tank.

The dirt collecting process of the dirt collecting vehicle is roughly described as follows. Dirt such as waste water or manure is sucked into the buffer tank by the driving of the vacuum pump, and the inside of the buffer tank is filled with dirt by continuous driving of the vacuum pump The float valve lifts up the float valve by the water level of the dirt and the float valve closes the inlet of the pipe to block the inflow of the dirt by the suction of the vacuum pump.

However, when dirt bubbles are generated during the process of sucking dirt into the dirt collecting tank by high pressure, such dirt bubbles are formed higher than the buoy height for checking the level of dirt, so that the float valve is connected to the inlet of the pipe Before the closing operation is carried out, it flows into the vacuum pump through the pipe.

Such a phenomenon causes a malfunction of the buoy and the float valve, and the dirt may flow into the vacuum pump, resulting in a problem of poor durability of the vacuum pump.

Further, the durability of the vacuum pump is deteriorated due to the dirt or foam, and the vacuum pump is repaired periodically. If the vacuum pump is severely damaged, replacement of the vacuum pump and replacement of the entire parts for dust collection may occur.

Korean Patent Publication No. 10-0941871 discloses a technique for improving the durability of a dirt collecting vehicle by preventing dirt or foam from flowing into a vacuum pump through a pipe during a suction process using vacuum pressure.

However, when the float valve 16 can not be closed because the buoy 17 does not freeze in winter, the sludge flows into the vacuum pump through the circulation pipe. In addition, the probability that the vacuum pump will fail due to the flow of light and small particle sludge into the vacuum pump is still high.

In other words, the sludge of large and heavy particles can be prevented from flowing into the vacuum pump through the auxiliary tank 200 and the air separator 50, but the light and small particle sludge is directly introduced into the vacuum pump by the air pressure, Is causing the breakdown.

Korean Patent Publication No. 10-1999-017023 (published on March 15, 1999) Korean Patent Publication No. 10-2011-0114766 (published on October 20, 2011) Korean Patent Publication No. 10-2010-0000097 (published on Jan. 10, 2010)

SUMMARY OF THE INVENTION Accordingly, it is an object of the present invention to provide a dust collecting apparatus and a dust collecting apparatus, which can prevent sludge or dirt from entering a vacuum pump and failing a vacuum pump when collecting dirt on the dust collecting vehicle, thereby improving durability of the dust collecting vehicle, And a filter for preventing malfunction of the vacuum pump in the urine collecting tank for the manure and dirt.

In order to accomplish the object of the present invention, a dirt collecting system having a filter for preventing failure of a vacuum pump of a vacuum liquid tank for collecting manure and dirt according to the present invention comprises a buffer tank for storing collected dirt, A circulation pipe connected to one side of the upper part, a four-way valve for controlling the flow direction of air flowing in the circulation pipe, air for adjusting the vacuum pressure in the buzzard tank is introduced into the buzzard tank through the circulation pipe And an air separator provided between the four-way valve and the vacuum pump for filtering the air circulated through the four-way valve, wherein the air separator is included in the air introduced from the buffer tank Circulated through the four-way valve in order to prevent foreign substances from entering the vacuum pump It characterized in that it comprises a cylindrical filter to filter the foreign substances contained in air.

The cylindrical filter is connected to the four-way valve to filter foreign substances contained in an air inlet through which air flows in from the buffer tank and air introduced through the air inlet. A plurality of fine through holes are formed in the cylindrical filter, And an air outlet connected to the vacuum pump and through which the air of the outer cylinder flows out. The inner cylinder includes a filter member, an outer cylinder in which air passing through the inner cylinder is collected, and an air outlet connected to the vacuum pump.

The dust collecting system of the present invention may further include a main separator having a sub-separator for filtering the lubricating oil contained in the air discharged from the vacuum pump, and a cylindrical filter for filtering foreign matters contained in the lubricating oil discharged from the sub- separator .

Here, the cylindrical filter includes a lubricating oil inlet through which the lubricating oil discharged from the sub separator flows, a foreign body contained in the lubricating oil flowing through the lubricating oil inlet, a plurality of fine through holes formed therein, And a lubricating oil outlet connected to the four-way valve, through which lubricating oil collected in the outer cylinder flows out.

According to the dust collecting system having the filter for preventing the failure of the vacuum pump in the manure and dirt collecting bucket tank of the present invention, a cylindrical filter is provided inside the air separator, and the foreign matter contained in the air, And a cylindrical filter is provided inside the main separator to filter foreign matters contained in the lubricating oil to prevent foreign matter from entering the vacuum pump to increase the life of the vacuum pump to improve the durability of the dirt collecting vehicle Can be saved.

1 is a view illustrating a configuration of a dirt collecting system according to an embodiment of the present invention;
FIG. 2 is a dirt suction / discharge flow chart of a dirt collecting system according to an embodiment of the present invention,
3 is a view showing a configuration of a cylindrical filter applied to an air separator of a dirt collecting system according to an embodiment of the present invention, and
4 is a view showing a configuration of a cylindrical filter applied to a main separator of a dirt collecting system according to an embodiment of the present invention.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, a dirt collecting system (hereinafter, referred to as a dirt collecting system) having a filter for preventing a vacuum pump failure of a buffalo tanks for collecting manure and dirt according to a preferred embodiment of the present invention will be described with reference to the accompanying drawings. Will be described in detail.

FIG. 1 is a view showing the construction of a dirt collecting system according to an embodiment of the present invention. FIG. 2 is a dirt suction / discharge flow chart of a dirt collecting system according to an embodiment of the present invention. And FIG. 4 is a view showing a configuration of a cylindrical filter applied to a main separator of a dirt collecting system according to an embodiment of the present invention. FIG. 4 is a view showing a configuration of a cylindrical filter applied to an air separator of a dirt collecting system according to an embodiment of the present invention.

1, the dirt collecting system includes a vacuum liquor tank 10, a float valve 16, a buoy 17, a suction / discharge valve 20, a circulation line 30, An air separator 50, a check valve 60, a vacuum pump 70, a sub-separator 80, a main separator 85, and a drain tank 90.

The buoyancy tank 10 serves to store the collected dirt and the suction / discharge valve 20 is installed in the buoyancy tank 10 so that dirt may flow into the buoyancy tank 10, And controls the discharge of the dirt to the outside. And a buoy table (17) for checking the level of the dirt so that no more dirt is introduced into the buffer tank (10).

The buoy 17 serves to open and close the float valve 16 formed on the buffer tank 10 while moving up and down according to the level of the dirt introduced into the buffer tank 10.

That is, when the float valve 16 is not closed by the buoy 17, that is, when the float valve 16 is opened, air is introduced into the buffer tank 10, The dust is introduced into the buffer tank 10 by the vacuum pressure or the dust is discharged from the buffer tank 10 by the high pressure.

On the other hand, when the float valve 16 is closed by the buoy 17, the water level of the dirt increases due to the dirt that flows into the dirt collection vehicle, thereby blocking the movement of the air and further preventing the dirt from being introduced into the collection vehicle.

To this end, one end of the circulation pipe 30 is connected to the float valve 16 formed in the upper part of the buffer tank 10, and the other end is connected to various components described later.

The four-way valve (40) serves to control the flow direction of the air flowing in the circulation pipe (30). The operation of the four-way valve 40 will be described later with reference to FIG.

The air separator 50 serves to filter the air circulated through the four-way valve 40. A cylindrical filter 100 as shown in FIG. 3 is provided in the air separator 50 so as to filter foreign matters (for example, moisture or solid lumps) that may be contained in air passing through the four- It plays a role.

The check valve 60 helps the air and the pump oil flowing in the circulation pipe 30 to flow only in a predetermined direction at all times. The vacuum pump 70 drives the circulation pipe 30). The vacuum pump 70 operates to circulate the air in the circulation pipe 30, and functions to circulate the air in different directions when the dust is sucked and the dust is discharged.

The different driving of the vacuum pump 70 is widely applied to a conventional dirt collecting vehicle by applying a vacuum pump 70. The detailed description of the type and operation of the vacuum pump 70 will be omitted.

The sub-separator 80 and the main separator 85 act to remove foreign substances from the air flowing into the circulation pipe 30 by driving the vacuum pump 70.

The sub-separator 80 and the main separator 85 serve not only to filter foreign matters but also to supply the lubricating oil to the vacuum pump 70, the sub-separator 80, and the main separator The lubricating oil that has passed through the vacuum pump 70 is not mixed with the air flowing in the circulation pipe 30 but only the lubricating oil mixed with the air is filtered.

Accordingly, the lubricant filtered through the sub-separator 80 and the main separator 85 flows into the vacuum pump 70 again to smoothly drive the vacuum pump 70.

Most of the lubricating oil is separated from the air in the sub-separator 80 and assembled into the main separator 85 having an oil tank function. The main separator 85 filters the foreign matter mixed with the lubricant flowing in the sub separator 80 and the filtered lubricant is re-introduced into the vacuum pump 70.

The drain tank 90 serves to filter the foreign substances mixed in the air introduced from the outside in the process of introducing air into the buffer tank 10 from the outside. The foreign matter not filtered by the drain tank 90 is once again filtered through the cylindrical filter 100 provided in the air separator 50.

The driving for dirt suction / discharge of the dirt collecting vehicle constructed as above will be described below.

First, an operation of lowering the internal air pressure of the buffer tank 10 for sucking dirt is preceded. This operation is an operation preceded more effectively to suck the dirt into the buffer tank 10 when collecting the dirt.

2, a vacuum pump (not shown) for discharging the air inside the buffer tank 10 to the outside in a state in which the suction / discharge valve 20 of the buffer tank 10 is not opened for this preliminary operation 70 are started. The air inside the buffer tank 10 is moved to the four-way valve 40 through the circulation pipe 30 by driving the vacuum pump 70 and the air moved to the four- To the air separator (50) under the control of the valve (40).

The air that has been passed through the air separator 50 is filtered through the cylindrical filter 100 and foreign matter mixed in the air is filtered and air passing through the air separator 50 passes through the check valve 60, 70). The air passing through the vacuum pump 70 is mixed with the lubricating oil used for smooth operation of the vacuum pump 70 and is passed through the vacuum pump 70.

The air mixed with the lubricating oil passing through the vacuum pump 70 passes through the sub-separator 80 and the main separator 85 to separate air, foreign matter and lubricating oil. The lubricant separated through the sub-separator 80 and the main separator 85 is re-introduced into the vacuum pump 70 through a separate lubricant circulation line, and the air separated from the lubricant is introduced into the four- Lt; / RTI >

The cylindrical filter 100 provided in the main separator 85 filters the foreign substances contained in the air introduced through the drain tank 90 and prevents foreign matter from entering the vacuum pump 70 .

The air flowing into the four-way valve (40) is moved to the drain tank (90) under the control of the four-way valve (40)

Through this circulation process, the air inside the buffer tank 10 is discharged to the outside, so that the atmospheric pressure inside the buffer tank 10 is lowered. With this operation, the suction / discharge valve 20 formed at one side of the buffer tank 10 is opened in a state where the air pressure inside the buffer tank 10 is lowered to perform the dirt collection.

The suction / discharge valve 20 is opened while the vacuum pump 70 is continuously driven. At the same time, the dirt is introduced into the buffer tank 10 from the septic tank and the like, The buoy 17 of the lower part of the float valve 16 formed in the upper part of the buffer tank 10 moves upward and the float valve 16 is operated to block the inlet of the float valve to remove the debris from the circulation pipe 30 from being overflowed.

However, in the case of the above-mentioned dirt, bubbles are generated as the high pressure is introduced into the buzzard tank 10, and the bubbles generated in this manner are generated by the buoy 17 before the float valve 16 is operated. And flows over the circulation pipe 30 through the valve inlet. In addition, it may happen that the dirt flows over the circulation pipe 30 due to the malfunction of the buoy 17 or the float valve 16. [

The cylindrical filter 100 provided in the air separator 50 filters the dirt and foam that has flowed into the circulation pipe 30 and prevents foreign matter from entering the vacuum pump 70.

Next, in order to discharge the dirt, the action of increasing the internal air pressure of the buffer tank 10 is preceded.

Referring to FIG. 2, a vacuum pump (not shown) for introducing air outside the buffer tank 10 into the interior of the buffer tank 10 without opening the suction / discharge valve 20 of the buffer tank 10 70 are started. The air outside the buffer tank 10 is moved to the four-way valve 40 through the drain tank 90 by the operation of the vacuum pump 70 and the air moved to the four- To the air separator (50) under the control of the valve (40).

The air that has been passed through the air separator 50 is filtered through the cylindrical filter 100 and foreign matter mixed in the air is filtered and air passing through the air separator 50 passes through the check valve 60, 70). The air passing through the vacuum pump 70 is mixed with the lubricating oil used for smooth operation of the vacuum pump 70 and is passed through the vacuum pump 70.

The air mixed with the lubricating oil passing through the vacuum pump 70 passes through the sub-separator 80 and the main separator 85 to separate air, foreign matter and lubricating oil. The lubricant separated through the sub-separator 80 and the main separator 85 is re-introduced into the vacuum pump 70 through a separate lubricant circulation line, and the air separated from the lubricant is introduced into the four- Lt; / RTI >

The cylindrical filter 100 provided in the main separator 85 filters the foreign substances contained in the air introduced by the vacuum pump 70 and prevents foreign matter from entering the vacuum pump 70 .

The air introduced into the four-way valve 40 flows into the buffer tank 10 through the circulation pipe 30 under the control of the four-way valve 40.

Through this circulation process, the air outside the buffer tank 10 flows into the inside of the buffer tank 10, so that the internal pressure of the buffer tank 10 becomes higher. With this operation, the suction / discharge valve 20 formed at one side of the buffer tank 10 is opened in a state in which the atmospheric pressure inside the buffer tank 10 is raised to discharge the dirt.

The suction / discharge valve 20 can be opened while the vacuum pump 70 is continuously driven, and foreign substances can be introduced from the outside through the drain tank 90, It is filtered by the cylindrical filter 100 provided in the separator 50 so that foreign substances can be prevented from being introduced into the vacuum pump 70.

3, the cylindrical filter 100 installed in the air separator 50 of the dirt collecting system of the present invention includes an air inlet 110, an inner cylinder 120, an outer cylinder 130, and an air outlet 140).

When the cylindrical filter 100 is installed inside the air separator 50, the air inlet 110 is connected to a pipe connected to the four-way valve 40, and the air outlet 140 is connected to the check valve 60 Connected to a connected pipe.

Air passing through the four-way valve (40) flows into the inner cylinder (120) through the air inlet (110). The inner cylinder 120 filters foreign substances contained in the incoming air. The inner cylinder 120 has a plurality of fine through holes 125, and a filter member (not shown) such as a nonwoven fabric is installed therein. The air filtered by the foreign material through the through hole 125 and the filter member is collected in the outer cylinder 130 and discharged to the check valve 60 through the air outlet 140. [

When the cylindrical filter 100 is installed in the main separator 85, the air inlet 110 is connected to a tube connected to the sub-separator 80, and the air outlet 140 is connected to the four- Connected to a connected pipe.

The air having passed through the sub-separator 80 flows into the inner cylinder 120 through the air inlet 110. The inner cylinder 120 filters foreign substances contained in the incoming air. The inner cylinder 120 has a plurality of fine through holes 125, and a filter member (not shown) such as a nonwoven fabric is installed therein. The air filtered by the foreign material through the through hole 125 and the filter member is collected in the outer cylinder 130 and discharged to the four-way valve 40 through the air outlet 140.

4, the cylindrical filter 200 installed in the main separator 85 of the dirt collecting system of the present invention includes a lubricant inlet 210, an inner cylinder 220, an outer cylinder 230, and a lubricant outlet 240).

When the cylindrical filter 200 is installed in the main separator 85, the lubricant inlet port 210 is connected to the sub-separator 80 and the lubricant outlet port 240 is connected to the vacuum pump 70.

The lubricant separated from the air in the sub-separator 80 flows into the inner cylinder 220 through the lubricant inlet 210. The inner cylinder 220 filters foreign substances contained in the lubricating oil, and has a plurality of fine through-holes 225 formed therein, and a filter member (not shown) such as a nonwoven fabric is installed therein. The lubricant oil filtered by the through hole 225 and the filter member collects in the outer cylinder 230 and is re-introduced into the vacuum pump 70 through the lubricant outlet 240.

As described above, since the foreign substances contained in the air and the lubricating oil are filtered by the cylindrical filters 100 and 200, foreign substances can be prevented from being introduced into the vacuum pump 70.

It will be apparent to those skilled in the art that various modifications and variations can be made in the present invention without departing from the spirit or scope of the invention as defined in the appended claims. It can be understood that it is possible.

10: Vermillion tank 16: Float valve
17: Buoy 20: Suction / discharge valve
30: Circulating piping 40: Four-way valve
50: air separator 60: check valve
70: Vacuum pump 80: Sub-separator
85: main separator 90: drain tank
100, 200: Cylindrical filter 110: Air inlet
120, 220: inner cylinder 130, 230: outer cylinder
140: air outlet 210: lubricating oil inlet
240: Lube oil outlet

Claims (4)

A circulation line connected to one side of the upper part of the Vacuum Lorry tank where the collected dirt is stored;
A four-way valve for controlling a flow direction of air flowing in the circulation pipe;
A vacuum pump for introducing and discharging air for adjusting the vacuum pressure inside the buffer tank into and out of the buffer tank through the circulation pipe; And
And an air separator provided between the four-way valve and the vacuum pump for filtering air circulated through the four-way valve,
Wherein the air separator includes a cylindrical filter for filtering foreign substances contained in the air circulated through the four-way valve in order to prevent foreign substances contained in air from the buffer tank from flowing into the vacuum pump,
Wherein the cylindrical filter comprises:
An air inlet connected to the four-way valve and through which air flows from the buffer tank;
An inner cylinder having a plurality of fine through holes formed therein for filtering foreign substances contained in air introduced through the air inlet and having a filter member therein;
An outer cylinder through which air passing through the inner cylinder is collected; And
And an air outlet connected to the vacuum pump and through which the air of the outer cylinder flows out. The dirt collecting system according to claim 1, delete The method according to claim 1,
A sub-separator for filtering the lubricating oil contained in the air discharged from the vacuum pump; And
Further comprising: a main separator having a cylindrical filter for filtering foreign substances contained in lubricating oil discharged from the sub separator, wherein the main separator is provided with a filter for preventing failure of the vacuum pump Collection system. The method of claim 3,
Wherein the cylindrical filter comprises:
A lubricating oil inlet through which the lubricating oil discharged from the sub separator flows;
An inner cylinder having a plurality of fine through-holes formed therein for filtering foreign substances contained in lubricating oil flowing through the lubricating oil inlet and having a filter member therein;
An outer cylinder through which the lubricating oil passing through the inner cylinder collects; And
And a lubricating oil outlet connected to the four-way valve and through which lubricating oil collected in the outer cylinder flows out. The dirt collecting system according to claim 1, wherein the dust collecting system comprises a filter for preventing malfunction of the vacuum pump.

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