KR102118685B1 - High pressure wastewater pump system - Google Patents

Abstract

The present invention relates to a high-pressure drainage and sewage pump system, which can grind debris contained in sewage to drain the same. To this end, the high-pressure drainage and sewage pump system according to an embodiment of the present invention comprises: a sewage tank which stores sewage after the sewage is introduced from an introduction pipe into which the sewage is introduced; a debris screen which is installed in the sewage tank to divide the inner space of the sewage tank into a transport space in which the sewage is introduced after the debris is filtered, and a grinding space in which the sewage is introduced while containing the debris, thereby allowing only the debris under a predetermined size to pass from the grinding space to the transport space; a transport pump which is connected to the transport space to pump the sewage introduced into the transport space to a transport destination; and a grinding pump which is connected to the grinding space to suck the sewage along with the debris introduced into the grinding space, and grinds the debris to discharge the same again to the grinding space. Therefore, clogging caused by the debris can be minimized.

Description

High pressure wastewater pump system

The present invention relates to a high-pressure sewage pump system for crushing and draining foreign substances contained in sewage.

In general, a pump is installed in the wastewater tank to transport wastewater, and the pump installed in the wastewater tank is a cutter that can cut foreign matter and suck it together with the wastewater to minimize clogging of the pump due to foreign matter contained in the wastewater. A bladed pump is installed.

The pump installed in the conventional cutter blade has been disclosed as a "grinder pump having a crushing room" in Korean Registered Patent Publication No. 10-1735725 (announced May 5, 2017).

A grinder pump having a conventional grinding room includes a casing having an inlet and an outlet; An impeller that rotates inside the casing to generate pumping force; A cutter provided at a suction port formed inside the inlet port of the casing and rotating to crush foreign substances contained in the waste water; It was configured to include; a crushing room member surrounding the front periphery of the cutter to provide a space for crushing foreign matter.

The grinder pump having such a conventional crushing room was able to discharge foreign matters contained in the suctioned waste water without clogging while the cutter rotates with the impeller.

However, in a grinder pump having a conventional crushing room, since the driving motor rotates the cutter together with the impeller, there is a problem in that the efficiency of the pump decreases depending on the load generated when cutting foreign matter by the cutter.

In addition, even if the foreign material is cut by the cutter, clogging due to the foreign material occurs because it cannot be cut to a certain size, and when a foreign object with a relatively long length flows, there is a problem that the efficiency of the pump decreases as the foreign material is wound on the drive shaft. there was.

In addition, since the grinder pump is located in the water of the sewage tank, there is a trouble in that the grinder pump must be taken out of the sewage tank during a breakdown or repair.

The present invention has been devised to solve the above problems, and the problem to be solved by the present invention is to separately install a crushing pump for crushing foreign substances and a transfer pump for transporting waste water, so that the crushing pump continuously crushes foreign substances, Since the transfer pump pumps only foreign substances of a certain size, it is possible to minimize clogging caused by foreign substances, as well as reduce the load applied to the pump to prevent the efficiency of the pump from dropping and discharge wastewater with high pressure and high lift. It is an object of the present invention to provide a high pressure wastewater pump system.

In addition, the foreign material screen can be cleaned by a spray nozzle and a foreign material cleaning unit to minimize clogging of the foreign material on the foreign material screen and prevent the efficiency of the pump from falling.

In addition, the sedimentation prevention pipe discharges wastewater to the bottom of the crushing space to prevent the occurrence of sedimentation, and the foreign material processing unit processes a relatively long length of foreign matter among foreign matter, thereby reducing the efficiency of the grinding pump due to the long foreign matter. And it is possible to prevent a failure from occurring.

The high-pressure sewage pump system according to an embodiment of the present invention for achieving the above object is installed in the sewage tank and the sewage tank for storing wastewater by introducing wastewater from the inflow pipe into which the wastewater flows, and the internal space of the wastewater tank. It is divided into a transport space through which foreign substances are filtered and inflow of filthy water, and a crushing space into which filthy water flows in a state containing foreign matter, and a foreign matter screen that allows only foreign matter having a size smaller than a predetermined size to pass through the transport space to the transport space. A transfer pump connected to pump the wastewater flowing into the transfer space to a transfer destination, and pulverized to be connected to the grinding space to suck wastewater with foreign matter flowing into the grinding space, crush the foreign substances, and discharge the wastewater back to the grinding space Includes pump.

The inlet pipe is connected to the upper portion of the sewage tank to infiltrate the sewage, and the foreign material screen is located at the bottom of the inlet pipe in the sewage tank to filter out foreign substances contained in the sewage, so that the filtered foreign matter is introduced into the grinding space. It may include an inclined screen portion in which the height is lowered toward the direction in which the grinding pump is located in the upper portion where the transfer pump is connected.

It may include a pulverizing branch pipe that connects a portion discharged from the pulverizing pump and an uppermost portion of the sloping screen portion to clean up foreign substances caught in the sloping screen portion by flowing sewage discharged from the crushing pump.

It may include a sedimentation prevention tube extending from the crushing discharge port of the crushing pump to close to the bottom of the crushing space to prevent foreign matter from sedimenting at the bottom of the crushing space.

It may include a screen cleaning unit that receives a part of the waste water discharged from the transfer pump and sprays the transfer space toward the crushing space to clean the foreign matter from the foreign material screen.

The screen cleaning part is movably installed along the vertical direction of the foreign material screen, and a nozzle header receiving part of the waste water discharged from the transfer pump, coupled to the nozzle header, and crushing a part of the waste water supplied to the nozzle header It may include a cleaning nozzle spraying toward the space, and a propulsion nozzle that is coupled to the bottom of the nozzle header and sprays the rest of the waste water supplied to the nozzle header to the floor to move the nozzle header upward from the floor.

It may include a foreign matter processing unit including a foreign matter treatment belt to filter out a relatively long foreign matter among the foreign matter contained in the waste water sucked into the grinding pump while rotating the portion where the waste water is sucked into the grinding pump.

According to the present invention, by separately installing a crushing pump for crushing foreign substances and a transfer pump for transporting wastewater, it is possible to prevent the efficiency of the pump from being deteriorated, as well as discharging and transporting wastewater with high pressure and high lift. In addition, the transfer pump and the crushing pump are installed on both sides of the sewage tank, so there is an advantage of easy repair.

In addition, a foreign material screen is installed inside the sewage tank to provide only a foreign material having a predetermined size or less to the transport pump, thereby preventing clogging of the transport pump by foreign materials.

In addition, it is possible not only to clean the inclined screen by spraying waste water from the spray nozzle, but also by cleaning the screen part in the form of spraying waste water by moving the side screen part up and down to prevent the efficiency of the pump from falling due to clogging of foreign substances. Can be.

In addition, a foreign matter processing unit for processing a relatively long foreign matter among the foreign matters is installed in the grinding space to prevent the efficiency of the crushing pump from being reduced or a malfunction caused by the long foreign matter.

In addition, by continuously pulverizing through the crushing pump to the extent that foreign matter contained in the wastewater flowing into the crushing space passes through the foreign matter screen, it is possible to prevent clogging due to foreign matter, as well as to prevent a sedimentation pipe at the crushing discharge port of the crushing pump. It is installed to prevent the precipitation of foreign substances in the crushing space by spraying wastewater toward the bottom.

1 is a side view showing a high-pressure effluent pump system according to an embodiment of the present invention.
Figure 2 is a perspective view schematically showing a sewage tank constituting a high-pressure sewage pump system according to an embodiment of the present invention.
3 is a side view schematically showing a screen cleaning unit constituting a high-pressure effluent pump system according to an embodiment of the present invention.
4 is a perspective view schematically showing a foreign material processing unit constituting a high-pressure sewage pump system according to an embodiment of the present invention.
5 is a front view schematically showing a foreign material processing unit constituting a high-pressure waste water pump system according to an embodiment of the present invention.

Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings.

As shown in Figure 1, the high-pressure waste water pump system 100 according to an embodiment of the present invention may include a grinding pump 130.

The crushing pump 130 may pulverize and discharge foreign substances contained in the sewage.

The crushing pump 130 may inhale and discharge foreign substances together with the waste water, and the grinding pump 130 is provided with a grinding blade capable of crushing foreign substances and cuts and discharges foreign substances contained in the suctioned waste water by the grinding blade. can do.

The crushing pump 130 may be provided with a crushing suction port 131 for sucking wastewater containing foreign matter and a crushing discharge port 133 for discharging the wastewater sucked through the crushing suction port 131 together with the cut foreign matter. The 130 may be implemented by various types of grinding pump 130 that rotates the grinding blade together with the impeller by a driving motor.

The crushing pump 130 is connected to the septic tank 110 in which the crushing suction port 131 and the crushing discharge port 133 are connected to the waste water tank 110 to be described below, and sucks waste water containing foreign substances flowing into the waste water tank 110 by the grinding blade. The waste water may be discharged to the sewage tank 110 together with the crushed foreign matter.

On the other hand, the crushing pump 130 is installed with a clogging detection sensor (not shown) that detects clogging of foreign matter, when the clogging by foreign matter occurs, the impeller is rotated automatically to suck the waste water through the crushing discharge port 133. , Discharge the fluid sucked into the pulverized suction port 131 to treat clogging caused by foreign matter.

At this time, the clogging sensor may measure the number of revolutions of the impeller compared to the power consumption of the driving motor, or detect clogging due to foreign matter in the form of sensing the pressure on the suction or discharge side.

As shown in FIG. 1, the high-pressure sewage pump system 100 according to an embodiment of the present invention may include a transfer pump 140.

The transfer pump 140 may suck and discharge the wastewater containing the crushed foreign matter, and the transfer pump 140 may rotate the impeller by a driving motor to suck and discharge fluid.

On the other hand, the transfer pump 140 may be formed with a transfer suction port 141 for sucking the waste water and a transfer discharge port 143 for discharging the sucked waste water, and the transfer pump 140 transfers the suction port to the sewage tank 110 ( 141) is connected to suck the waste water containing the foreign matter crushed by the grinding pump 130 can be discharged to the transfer discharge port (143).

The transport discharge port 143 may be connected to a transport pipe for transporting wastewater to a transport destination.

The transfer pump 140 may be implemented as various types of pumps, and the transfer pump 140 is preferably implemented as a centrifugal multistage pump capable of sucking and discharging fluid at a relatively high pressure than other pumps.

In addition, a strainer (not shown) may be installed in the transfer suction port 141 to filter out foreign matter so that only foreign matter of a predetermined size can be introduced, and the strainer is installed with a detection sensor that detects clogging of the foreign matter and is blocked by the detection sensor. If it detects that this has occurred, it is possible to inform the outside whether or not the problem of the transfer pump 140 occurs through a speaker or a lamp to the outside.

1 to 2, the high pressure sewage pump system 100 according to an embodiment of the present invention may include a sewage tank 110.

The sewage tank 110 may receive and store sewage, and the sewage tank 110 may be connected to an inlet pipe 111 through which sewage is introduced to supply sewage to the interior of the sewage tank 110.

The sewage tank 110 may be introduced into the sewage tank 110 in a state including foreign matter, and the crushing suction port 131 and the crushing discharge port 133 of the crushing pump 130 may be connected to one side of the septic tank 110. In addition, a transfer suction port 141 of the transfer pump 140 may be connected to the other side of the sewage tank 110.

On the other hand, the upper portion of the sewage tank 110 may be connected to the inlet pipe 111 to which the sewage flows.

1 and 2, the high-pressure wastewater pump system 100 according to an embodiment of the present invention may include a foreign material screen 120.

The foreign matter screen 120 is installed in the sewage tank 110 to filter out foreign matter exceeding a preset size and allow foreign matter below a preset size to pass through.

The foreign material screen 120 may divide the inside of the sewage tank 110 into a crushing space 113 and a transport space 115, and the crushing space 113 includes filth containing foreign matter filtered by the foreign material screen 120. Is introduced, and the sewage containing the foreign matter that has passed through the foreign matter screen 120 may be introduced into the transport space 115.

At this time, the grinding space 113 may be connected to the grinding suction port 131 and the grinding discharge port 133 of the grinding pump 130, the transfer space 115 may be connected to the transfer suction port 141 of the transfer pump 140. have.

The foreign material screen 120 may be implemented as a mesh having a preset sized pore or a porous plate in which a plurality of holes are formed so as to filter out foreign matter of a preset size.

The foreign material screen 120 may include an inclined screen unit 121 and a side screen unit 123, and the inclined screen unit 121 is located at a lower portion of a position corresponding to the inlet pipe 111 in the sewage tank 110. The inclined screen may be positioned so that the height gradually decreases from the portion where the transfer pump 140 is located to the portion where the grinding pump 130 is located, so that foreign matters filtered by the inclined screen portion 121 are crushed along the inclination. It can be easily introduced into the space 113.

The side screen portion 123 may be vertically formed toward the floor from the lower end of the inclined screen portion 121, and the side screen portion 123 is formed with a grinding suction port 131 and a grinding discharge port 133. It is spaced inwardly from the side of the sewage tank 110 to form a grinding space 113 between the side screen unit 123 and the grinding pump 130.

The transport space 115 is surrounded by the foreign material screen 120 so that only foreign matter that has passed through the foreign material screen 120 flows into the transport space 115 to prevent clogging of the transport pump 140 by foreign materials.

1 and 2, the high-pressure sewage pump system 100 according to an embodiment of the present invention may include a sedimentation prevention tube 135.

The sedimentation prevention pipe 135 may support the foreign matter to prevent the foreign matter from being settled on the bottom of the grinding space 113.

The sedimentation prevention pipe 135 may be connected to the pulverization discharge port 133 of the pulverization pump 130 so that foreign matter precipitated in the crushing space 113 is supported by the pressure of sewage discharged from the pulverization pump 130, and the pulverization discharge port The direction in which the wastewater is discharged may be switched to the floor so that the wastewater discharged at 133 is discharged toward the bottom of the grinding space 113.

The end of the sedimentation prevention pipe 135 is positioned to be close to the floor to support foreign matter deposited on the floor by the discharge pressure of sewage.

1 and 2, the high-pressure wastewater pump system 100 according to an embodiment of the present invention may include a pulverizing branch pipe 137, and an injection nozzle 139.

The crushing branch pipe 137 may be connected to the crushing discharge port 133 at one end, and the other end may be connected to a portion where the highest height end of the inclined screen portion 121 is located in the sewage tank 110 to be crushed discharge port 133 ) Can be provided to the upper portion of the inclined screen portion 121 discharged.

The injection nozzle 139 is installed on the uppermost part of the inclined screen unit 121 in the inside of the sewage tank 110 to inject the wastewater supplied through the pulverizing branch pipe 137 into the inclined screen unit 121 to incline the screen unit It is possible to clean the foreign matter caught in (121).

A plurality of spray nozzles 139 may be installed spaced apart, and the spray nozzle 139 sprays sewage from the uppermost end of the inclined screen part 121 toward the lower end of the inclined part to clean foreign matters caught in the inclined screen part 121. Can be.

Here, the pulverizing branch pipe 137 and the injection nozzle 139 are formed in a size sufficient to pass through the crushed foreign matter in the crushing pump 130 to prevent clogging due to the foreign matter, and the crushing pump 130 Since the foreign matter contained in the discharged wastewater is in a crushed state, the foreign matter accumulated in the foreign matter screen 120 may be removed and then introduced into the transport space 115 through the foreign matter screen 120.

2 and 3, the high-pressure wastewater pump system 100 according to an embodiment of the present invention may include a screen cleaning unit 150.

The screen cleaning unit 150 may clean the foreign material caught in the side screen unit 123 of the foreign material screen 120 by spraying wastewater from the transport space 115 toward the grinding space 113.

Here, since the side screen portion 123 partitions the transfer space 115 and the grinding space 113, when suction power to suck waste water by the transfer pump 140 acts, the waste water of the grinding space 113 is transferred If the crushed foreign matter is caught and accumulated by the crushing pump 130 on the side screen 123 while moving to 115, the screen cleaning unit 150 because the movement of sewage from the crushing space 113 to the moving space is not smooth. May clean the foreign matter caught in the side screen portion 123.

The screen cleaning unit 150 may include a guide rod 157, a nozzle header 151, a cleaning nozzle 152, and a propulsion nozzle 153.

Guide rods 157 may be installed on both sides of the transfer space 115 close to the side screen portion 123, and the guide rods 157 move the nozzle header 151 in the vertical direction of the side screen portion 123. I can do it.

On the other hand, the nozzle header 151 is coupled to both ends of the guide rods 157 located on both sides can move up and down along the guide rod 157, the nozzle header 151 is discharged to the transfer pump 140 You can get a part of the.

Here, a transfer branch pipe 155 branched from the transfer discharge port 143 is connected to the transfer space 115 of the wastewater tank 110 to supply wastewater discharged to the nozzle header 151 to the transfer pump 140 and , The flexible connecting pipe 154 flexibly connected to the conveying branch 155 is supplied with sewage supplied through the conveying branch 155.

In addition, since the nozzle header 151 is connected to the transfer branch 155 by the flexible connecting pipe 154, the vertical movement of the nozzle header 151 is not restricted by the connected pipe.

A plurality of cleaning nozzles 152 may be installed along the longitudinal direction of the nozzle header 151, and the cleaning nozzle 152 sprays wastewater from the nozzle header 151 toward the side screen part 123 to the side screen part. In the form of dropping the foreign material in the opposite direction to which the foreign material is caught in 123, the foreign material caught in the side screen portion 123 may be removed.

The propulsion nozzle 153 may be installed to spray wastewater from the lower portion of the nozzle header 151 toward the floor, and the propulsion nozzle 153 uses a part of the wastewater supplied to the nozzle header 151 as a cleaning nozzle 152. Supply, the rest of the supply to the propulsion nozzle 153 can spray the waste water.

The nozzle header 151 is divided into a propulsion space in which filthy water sprayed through the propulsion nozzle 153 flows in and a crushing space 113 in which filthy water sprayed through the cleaning nozzle 152 flows in. As the nozzle 152 communicates, it is possible to minimize a drop in the pressure of sewage.

On the other hand, the propulsion nozzle 153, the cleaning nozzle 152, and the nozzle header 151, the foreign matter contained in the discharged waste water, that is, the foreign matter of the size passing through the foreign matter screen 120 is not caught and is sufficiently sized to pass through It can be formed to have an inner diameter.

In addition, a transfer branch valve may be installed in the transfer branch pipe 155 to selectively supply or block wastewater to the nozzle header 151, and the transfer branch valve may supply wastewater to the nozzle header 151 for a predetermined time. And after a predetermined time, it is also possible to repeatedly supply and block the sewage to block the supply of wastewater to the nozzle header 151.

When the screen cleaning unit 150 configured as described above discharges wastewater by the transfer pump 140, a part of the discharged wastewater is supplied to the nozzle header 151 through the transfer branch pipe 155 and the flexible connector 154. , The waste water supplied to the nozzle header 151 may clean the side screen part 123 by spraying waste water from the side screen part 123 through the cleaning nozzle 152 toward the opposite direction of the foreign matter.

At this time, some of the sewage supplied to the nozzle header 151 is sprayed through the cleaning nozzle 152 to clean the side screen portion 123, and the remaining part of the sewage is sprayed toward the floor through the propulsion nozzle 153. Therefore, the nozzle header 151 moves upward along the guide rod 157 by the pressure for spraying wastewater from the propulsion nozzle 153, and the side screen portion 123 can be entirely cleaned.

On the other hand, when the supply of wastewater to the nozzle header 151 is blocked by the transfer branch valve, the nozzle header 151 moves to the lower portion, which is the initial position along the guide rod 157, by its own weight, and rises when supplying wastewater again In the form, the nozzle header 151 can repeatedly clean the side screen 123 by repeatedly ascending and descending depending on whether or not the waste water is supplied.

4 and 5, the high-pressure waste water pump system 100 according to an embodiment of the present invention may include a foreign material processing unit 160.

The foreign matter processing unit 160 is a crushing suction port 131 through which wastewater is sucked together with foreign matter from the crushing pump 130. A relatively long foreign matter is sucked from the foreign matter and is wound inside the crushing pump 130 to crush the crushing pump 130. ) It is possible to prevent a decrease in efficiency or a failure of the grinding pump 130.

The foreign matter processing unit 160 may be installed in the grinding space 113 to take out a relatively long length foreign matter sucked into the grinding suction port 131 out of the sewage tank 110 and process it in a form of cutting foreign matter.

The foreign material processing unit 160 may include a foreign material processing belt 163.

The foreign material treatment belt 163 is located in front of the waste water is sucked from the grinding suction port 131 so that a relatively long foreign material is caught, and may pass by rotating the grinding suction port 131.

One end of the foreign material treatment belt 163 spans the second pulley 162 located at the bottom of the grinding suction port 131, and the other end of the foreign material treatment belt 163 is located at the top of the sewage tank 110. 1 pulley 161 may be spread over, `The first pulley 161 is rotated by the processing motor 165 `` Foreign material processing belt 163 across the first pulley 161 and the second pulley 162 Can rotate.

The foreign material caught in the foreign material processing belt 163 may be processed along the foreign material processing belt 163 to be cut in the upper portion of the sewage tank 110.

The foreign material processing belt 163 may be formed by spaced apart by a plurality of protruding protrusions over which the foreign material is disposed so that a long foreign material can move along the foreign material processing belt 163.

Here, when an obstacle is located in a path where the foreign material processing belt 163 moves, a change roller is installed to change the movement path of the foreign material processing belt 163 so that the foreign material processing belt 163 can rotate and move around the obstacle. It may be.

On the other hand, when the sedimentation prevention pipe 135 of the crushing discharge port 133 is installed in the path in which the foreign material processing belt 163 moves, the foreign material processing belt 163 is on both sides of the crushing discharge port 133. The path may be changed to pass or the position of the pulverization discharge port 133 may be changed.

However, in the embodiment, the foreign material treatment belt 163 was installed to penetrate the settling prevention pipe 135.

When the foreign material treatment belt 163 passes through the sedimentation prevention pipe 135, the foreign substances caught in the foreign substance treatment belt 163 may be removed from the foreign substance treatment belt 163 by sewage discharged through the sedimentation prevention pipe 135. In addition, as the foreign matter treatment belt 163 passes through the sedimentation prevention pipe 135, the foreign matter caught in the portion may be cut or the foreign matter caught in the foreign matter treatment belt 163 may be removed in a form in which entry is blocked. have.

`The first pulley 161 and the processing motor 165 are located on the upper part of the sewage tank 110 so that foreign matter caught in the foreign material processing belt 163 can be withdrawn to the upper part of the sewage tank 110.

The foreign material processing unit 160 may include a cutter 167 and a foreign material container 169.

The cutter 167 and the foreign substance container 169 may be located on the upper portion of the sewage tank 110 in which the processing motor 165 and the'first pulley 161 are located, and the cutter 167 may include the'first pulley ( 161) is supported on one side of the foreign material processing belt 163 in the position is located, the foreign material caught in the foreign material processing belt 163 is cut by the cutter 167, the foreign material caught in the foreign material processing belt 163 is removed Can be.

Meanwhile, a foreign substance container 169 may be positioned at a lower portion corresponding to the cutter 167, and foreign substances cut by the cutter 167 and separated from the foreign substance processing belt 163 may be located at the lower portion of the cutter 167. It can be prevented from being re-entered into the sewage tank 110 contained in the foreign substance container 169.

In the foreign matter processing unit 160 configured as described above, the `first pulley 161 is rotated by the processing motor 165, and `the foreign matter processing belt 163 across the first pulley 161 and the second pulley 162 is rotated. , The foreign material treatment belt 163 passes through the grinding suction port 131, and the relatively long foreign matter contained in the suctioned waste water is extended to the inside of the grinding pump 130 in a form that spans the foreign material processing belt 163. Prevent foreign substances from entering.

On the other hand, if the foreign material caught in the foreign material processing belt 163 enters the upper portion where the first pulley 161 is located according to the continuous rotation of the foreign material processing belt 163, the cutter 167 adjacent to the foreign material processing belt 163 ) Is cut while being caught, and the cut foreign matter flows into the foreign material container 169.

At this time, when the foreign matter caught in the foreign material treatment belt 163 passes through the precipitation preventing pipe 135, it is caught by the precipitation preventing pipe 135 or removed by the pressure of sewage discharged from the inside of the precipitation preventing pipe 135 It can be again introduced into the grinding space 113, and even if it can only be prevented from entering the grinding pump 130 even if it enters the grinding space 113, it is possible to sufficiently exhibit the function of the foreign material processing unit 160.

Hereinafter, the action and effect between each configuration will be described.

In the high pressure sewage pump system 100 according to an embodiment of the present invention, an inflow pipe 111 through which sewage flows is installed on the upper part of the sewage tank 110, and a transfer pump 140 is provided on one side of the sewage tank 110. The transfer suction port 141 is connected to the sewage tank 110, the grinding pump 130 is located on the other side of the waste tank 110, the grinding suction port 131 and the grinding discharge port 133 are the waste tank 110 ).

On the other hand, the internal space of the sewage tank 110 is divided into a transport space 115 and a grinding space 113 by a foreign material screen 120 around the transport suction port 141, and the foreign material screen ( 120) the filthy water filtered by foreign matter is introduced.

The foreign material screen 120 is formed with an inclined screen portion 121 in an inclined shape at the bottom of the inlet pipe 111, and the side screen portion 123 is provided from the lower end of the inclined screen portion 121 to the bottom. Is formed.

Then, the crushing suction port 131 of the crushing pump 130 is provided with a sedimentation prevention pipe 135 that prevents sedimentation of foreign matters at the bottom of the crushing space 113 by the pressure discharged of waste water from the crushing pump 130. .

On the other hand, a screen cleaning unit 150 is installed at an adjacent portion of the side screen unit 123 in the transfer space 115, and the nozzle header 151 of the screen cleaning unit 150 can move up and down along the guide rod 157. The nozzle header 151 includes a cleaning nozzle 152 for cleaning waste water by spraying it toward the side screen portion 123 and a propulsion nozzle 153 for raising the nozzle header 151 by spraying waste water downward. Is installed.

In addition, the flexible connection pipe 154 is connected to the delivery branch pipe 155 for branching and providing a part of the waste water discharged from the transfer pump 140 to the nozzle header 151 to be flexible with the transfer branch pipe 155. Waste water discharged from the transfer pump 140 is supplied through the connection pipe 154.

The inclined screen portion 121 is connected to a pulverized branch pipe 137 to which a portion of the waste water discharged from the pulverized pump 130 is supplied to an end having the highest height. The spray nozzle 139 for cleaning by spraying sewage is installed.

In addition, a foreign matter processing unit 160 for filtering foreign matter having a relatively long length among foreign matter may be installed in a portion where the grinding suction port 131 is located inside the sewage tank 110.

The foreign material processing unit 160, the second pulley 162 is installed at the bottom of the grinding suction port 131, the'first pulley 161' is installed on the upper part of the sewage tank 110, the'first pulley 161' And the second pulley 162, the foreign matter processing belt 163 is spread, and the `first pulley 161 is rotated by the processing motor 165 by connecting the processing motor 165 to the first pulley 161. By doing so, the foreign material processing belt 163 rotates.

In addition, a cutter 167 is installed close to the foreign material processing belt 163 in a portion where the first pulley 161 is located, and a foreign material container 169 is installed under the cutter 167.

When the sewage flows into the inside of the sewage tank 110 through the inlet pipe 111, the high-pressure sewage pump system 100 according to an embodiment of the present invention configured as described above, foreign substances are filtered through the inclined screen unit 121 The crushing space 113 is introduced, and foreign matter and wastewater that have passed through the inclined screen unit 121 are introduced into the transport space 115.

The wastewater flowing into the grinding space 113 is sucked into the grinding suction port 131 according to the start-up of the grinding pump 130, and as foreign matter is crushed in the grinding pump 130, it is again crushed together with the wastewater through the grinding discharge port 133. It is discharged to the space 113.

At this time, when the foreign matter crushed by the crushing pump 130 is crushed to a size that will pass through the side screen portion 123, it is transferred to the transfer space 115 through the side screen portion 123, and is transferred to the side screen portion 123. The jammed foreign matter is sucked back into the discharge suction port and pulverized again by the crushing pump 130 and continuously discharged into the crushing space 113 until it is pulverized to a size capable of passing through the side screen portion 123. At 130, the grinding space 113 may be circulated and crushed.

On the other hand, foreign matter and wastewater that has passed through the foreign matter screen 120 and moved from the grinding space 113 to the transport space 115 is sucked into the transport suction port 141 by the transport pump 140, and the sucked wastewater and foreign matter are As it is discharged through the transfer discharge port 143, it is transferred to the transfer destination through the transfer pipe.

In addition, when wastewater is discharged from the crushing pump 130, it is discharged to the bottom of the crushing space 113 through the sedimentation prevention pipe 135 to prevent foreign matter from being settled by the pressure of the discharged effluent, so that the foreign matter is crushed pump ( 130) and the crushing space 113 is circulated, and as foreign matter is continuously cut, it is sent to the transport space 115 to prevent the foreign matter from accumulating in the crushing space 113.

At the same time, when the waste water is discharged from the grinding pump 130, some of the waste water is provided to the spray nozzle 139 located at the top of the side screen portion 123 through the grinding branch pipe 137, and the spray nozzle 139 is provided. As the wastewater is sprayed through, the upper surface of the inclined screen unit 121 may be cleaned to prevent foreign substances from accumulating on the inclined screen unit 121.

In addition, when a foreign substance is sucked into the grinding suction port 131 by the grinding pump 130, a foreign substance having a relatively long length among the foreign substances is processed by the foreign substance processing unit 160.

The foreign material processing unit 160 is installed so that the foreign material processing belt 163 rotates in front of the grinding suction port 131 so that a long length foreign material among the foreign materials sucked into the grinding suction port 131 spans the foreign material processing belt 163. Block the inflow into the grinding pump 130.

In addition, the foreign material processing unit 160, the first pulley 161 is rotated by the processing motor 165, and the foreign material processing belt 163 spanning the first pulley 161 and the second pulley 162 is rotated. , Foreign matter caught in the foreign material processing belt 163 is cut when the foreign material is caught in the cutter 167 when it enters the upper part of the sewage tank 110 in which the first pulley 161 is located, and the cut foreign material can be ) And prevents re-inflow into the sewage tank 110.

As such, the foreign matter processing unit 160 removes and removes the relatively long length foreign matter sucked into the crushing suction port 131 according to the continuous rotation of the foreign matter processing belt 163 to the upper part of the sewage tank 110, thereby removing the relatively long foreign matter. By this, it is possible to prevent the failure of the grinding pump 130 or the efficiency of the grinding pump 130 from falling.

In addition, a part of the waste water discharged to the transfer pump 140 is supplied to the nozzle header 151 through the transfer branch pipe 155 and the flexible connecting pipe 154 connected to the transfer branch pipe 155, and the nozzle header ( A part of the wastewater supplied to 151) is sprayed to the side screen portion 123 through the cleaning nozzle 152 to remove foreign substances from the side screen portion 123.

In addition, since the rest of the waste water supplied to the nozzle header 151 is sprayed toward the floor through the propulsion nozzle 153, the nozzle header 151 is guide rod ( 157), it can move to the upper side, it is possible to clean the side screen portion (123).

At this time, when the transfer branch valve is installed in the transfer branch pipe 155 to open the transfer branch valve, wastewater is supplied to the nozzle header 151 through the transfer branch pipe 155 while the nozzle header is driven by the propulsion nozzle 153. When the 151 rises and the supply of wastewater is blocked by the transfer branch valve, the pressure of the propulsion nozzle 153 is lost, and the nozzle header 151 may be lowered again.

In this way, the nozzle header 151 may clean the side screen portion 123 while repeatedly ascending and descending by the transfer branch valve.

On the other hand, a clogging detection sensor is installed in the crushing pump 130, and when a clogging occurs due to a foreign substance in the clogging detection sensor, the impeller is rotated to suck fluid into the crushing discharge port 133 and sucked into the crushing suction port 131. By discharging the fluid, clogging of the grinding pump 130 may be treated.

Therefore, the high-pressure waste water pump system 100 according to an embodiment of the present invention is separately installed a crushing pump 130 for crushing foreign substances and a transfer pump 140 for pumping waste water to reduce the load due to suction of foreign substances. The efficiency of the pump can be improved.

In addition, the foreign matter screen 120 is installed inside the sewage tank 110 so that the foreign matter crushed in the crushing pump 130 is passed only when it is crushed to a predetermined size or less, thereby preventing damage to the transport pump 140 by foreign matter. Can be prevented.

In addition, the waste water tank 110 is installed between the grinding pump 130 and the waste water pump, so there is no need to install the grinding pump 130 and the waste water pump inside the waste water tank 110, so there is an advantage of easy maintenance. .

In addition, a part of the waste water discharged from the crushing pump 130 is sprayed through the spray nozzle 139 from the upper part of the inclined screen part 121 through the crushing branch pipe 137 to clean the inclined screen part 121 to clean foreign matter. According to the accumulation, it is possible to prevent clogging of the inclined screen unit 121.

In addition, the screen cleaning unit 150 is installed inside the side screen unit 123 to spray a part of the waste water discharged from the transfer pump 140 through the injection nozzle 139 to remove foreign substances from the side screen unit 123. It can be cleaned.

In addition, a propelling nozzle 153 is installed at the bottom of the nozzle header 151 so that the nozzle header 151 moves upward along the guide rod 157 and can clean foreign matter caught in the side screen portion 123.

In addition, a sedimentation prevention pipe 135 is installed in the pulverization discharge port 133 of the pulverization pump 130 to prevent foreign matter from being precipitated in the crushing space 113 by the pressure of the discharged wastewater.

In addition, a foreign matter treatment belt 163 that rotates and passes through the grinding suction port 131 of the grinding pump 130 is installed to rotate the foreign matter treatment belt 163, so that a relatively long length of foreign matter spreads over the grinding pump 130. By preventing the inflow of long foreign matters, and processing them in the form of cutting out the foreign matters to the upper part of the sewage tank 110 by the cutter 167, it is possible to prevent the reduction or failure of the efficiency of the pump due to the long foreign matters. have.

Although the embodiments of the present invention have been described above, the scope of rights of the present invention is not limited to this, and it is easily changed and equalized by those skilled in the art from the embodiments of the present invention. Includes all changes and modifications to the extent possible.

100: high pressure sewage pump system 110: sewage tank
111: inlet pipe 113: grinding space
115: transfer space 120: foreign material screen
121: inclined screen portion 123: side screen portion
130: grinding pump 131: grinding suction port
133: crushing discharge port 135: sedimentation prevention pipe
137: grinding powder 139: spray nozzle
140: transfer pump 141: transfer suction port
143: transfer discharge port 150: screen cleaning unit
151: nozzle header 152: cleaning nozzle
153: propulsion nozzle 154: flexible connector
155: transfer branch 157: guide rod
160: foreign material processing unit 161: the first pulley
162: second pulley 163: foreign material treatment belt
165: processing motor 167: cutter
169: foreign body container

Claims (7)

Sewage tank for storing sewage through which sewage flows from the inlet pipe where sewage flows,
It is installed in the sewage tank and divides the internal space of the sewage tank into a transport space through which foreign substances are filtered, and a crushing space into which wastewater flows in a state including foreign matter. Foreign material screen passing through the transfer space,
A transfer pump connected to the transfer space to pump the wastewater flowing into the transfer space to a transfer destination, and
It includes a crushing pump connected to the crushing space to suck the waste water together with foreign matter flowing into the crushing space, crush the foreign material and discharge it back to the crushing space,
The inlet pipe is connected to the upper portion of the sewage tank to infiltrate the sewage, and the foreign material screen is located at the bottom of the inlet pipe in the sewage tank to filter out foreign substances contained in the sewage, so that the filtered foreign matter is introduced into the grinding space. A high-pressure wastewater pump system for a high pressure system, comprising an inclined screen portion that decreases in height in the direction in which the crushing pump is positioned from the upper portion where the transfer pump is connected. delete According to claim 1,
And a pulverizing branch pipe that connects a portion discharged from the pulverizing pump and an uppermost portion of the inclined screen portion to clean foreign matters caught in the inclined screen portion to flow downward by sewage discharged from the pulverizing pump. High pressure waste water pump system. According to claim 1,
And a sedimentation prevention pipe extending from the crushing discharge port of the crushing pump to be close to the bottom of the crushing space to prevent foreign matter from sedimenting at the bottom of the crushing space. According to claim 1,
And a screen cleaning unit for receiving a part of waste water discharged from the transfer pump and spraying the transfer space toward the crushing space to clean the foreign matter from the foreign material screen. The method of claim 5,
The screen cleaning unit
Nozzle header installed to be movable along the vertical direction of the foreign material screen and receiving a part of the waste water discharged from the transfer pump,
A cleaning nozzle coupled to the nozzle header and spraying a part of waste water supplied to the nozzle header toward the grinding space, and
And a propulsion nozzle which is coupled to the lower end of the nozzle header and sprays the rest of the waste water supplied to the nozzle header to the floor to move the nozzle header upward from the floor. According to claim 1,
It characterized in that it comprises a foreign matter treatment unit including a foreign matter treatment belt to filter out a relatively long foreign matter among the foreign matter contained in the waste water sucked into the grinding pump by rotating the portion where the waste water is sucked into the grinding pump. High pressure waste water pump system.

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