JP2008063770A - Vacuum station and vacuum type sewer system - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a vacuum station of unit structure in which an installation space is small and the maintenance of equipment is easy, and to provide a vacuum type sewer system using the vacuum station. <P>SOLUTION: The vacuum station is composed of vacuum pump units 100, 300, 400 comprising root-type vacuum pumps 12; a water collecting tank unit 200 comprising a water collecting tank 31; and a control panel 50 controlling the normal rotating and reverse rotating operation of the vacuum pumps. The control panel 50 is installed on the ground, and at least the water collecting tank unit 200 is installed underground. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a vacuum station that once collects sewage from a vacuum sewage pipe and then sends the sewage to a sewage treatment plant or the like, and a vacuum sewer system using the vacuum station.

  A vacuum station is a facility that generates vacuum that serves as the power to collect sewage, stores the collected sewage primarily, and then transports it to a sewage treatment plant, sewage relay pumping station, and a natural downstream main line. It consists of a vacuum generator, a water collection tank that primarily stores collected sewage, a pressure pump that drains sewage, and a control panel that controls these devices.

  A conventional vacuum station of this type is disclosed in Patent Document 1. This vacuum station is equipped with a plurality of roots-type vacuum pumps, and is configured to alternately collect and drain sewage into the water collection tank by automatically operating forward and reverse. . Since this vacuum station can collect and drain sewage without using a pump, it is difficult to block by foreign matter, and since it uses a vacuum pump, it has an advantage of high ultimate vacuum and high operating efficiency.

In addition, the power control panel and multiple vacuum pumps are integrated into a unit structure, and a unit structure is built by incorporating a water collection tank into the manhole. Compared to conventional vacuum stations, the equipment configuration can be simplified, and the vacuum station There is also an advantage that the land acquisition can be reduced.
JP 2005-42380 A

  However, in the vacuum station disclosed in Patent Document 1, the control panel and a plurality of vacuum pumps are integrated into a unit structure, but there are many cases where the ground facility space is limited due to the circumstances of the vacuum station installation location, There is a further need for a space saving vacuum station. Moreover, since the equipment which comprises a vacuum station requires regular maintenance, it is necessary to make it easy to maintain even when saving space.

  In addition, in the sewerage business, it is necessary to thoroughly consider the prospects for securing the site for the vacuum station as well as the treatment plant and the pump station, in line with the land use plan and the land readjustment project plan. The larger the required site, the more difficult the conditions necessary for the site securing procedure (use change, building confirmation application, etc.), and there was a problem that caused more restrictions on the economical layout plan of the vacuum sewer system .

  The present invention has been made in view of the above points, and an object of the present invention is to provide a vacuum station having a unit structure with a small installation space and easy maintenance of equipment, and a vacuum sewer system using the vacuum station. There is. The installation space referred to here includes not only the land area necessary for equipment layout, but also the space occupied by the ground equipment, the dimensions of the unit itself for housing each device, and the like.

  In order to solve the above-mentioned problems, a first aspect of the present invention is directed to a vacuum pump unit having a roots-type vacuum pump, a water collection tank unit having a water collection tank, and a control for causing the vacuum pump to perform forward and reverse operations. The vacuum station is characterized in that the control panel is installed on the ground and at least the water collection tank unit is installed underground.

  According to a second aspect of the present invention, in the vacuum station according to the first aspect, main equipment including the vacuum pump in the vacuum pump unit is installed on a gantry and is configured to be removable.

  According to a third aspect of the present invention, in the vacuum station according to the first or second aspect, the plurality of vacuum pumps in the vacuum pump unit are arranged one above the other.

  According to a fourth aspect of the present invention, in the vacuum station according to any one of the first to third aspects, the water collection tank in the water collection tank unit can be taken in and out.

A fifth aspect of the present invention is the vacuum station according to any one of the first to fourth aspects, characterized in that the total land area required for installation of equipment is 10 m ² or less.

  According to a sixth aspect of the present invention, in a vacuum sewer system including a vacuum station, a vacuum pipe line, and a vacuum valve unit, the vacuum station according to any one of the first to fifth aspects is used for the vacuum station. Features.

  According to the first aspect of the present invention, since the control panel is installed on the ground and at least the water collection tank unit is installed in the basement, the installation space of the above-ground part of the vacuum station can be reduced.

  According to the second aspect of the present invention, the main equipment including the vacuum pump in the vacuum pump unit is installed on the gantry and is configured to be removable. Therefore, the unit size is reduced, space saving and daily inspection of the vacuum pump are performed. And ease of maintenance such as regular inspections.

  According to invention of Claim 3, since the several vacuum pump in a vacuum pump unit was piled up and down, it arrange | positions a vacuum pump compared with the case where a vacuum pump is arranged side by side at the same height. The unit area can be reduced.

  According to the fourth aspect of the present invention, since the water collection tank in the water collection tank unit can be taken in and out, the water collection tank in the vacuum station can be replaced without stopping for a long time even when the water collection tank is updated. Therefore, maintenance can be facilitated.

According to the invention described in claim 5, since the total land area necessary for installation of equipment is 10 m ² or less, the structure is not a building (no internal space that can accommodate humans), and is a vacuum type Application procedures for building confirmation are not required on the overall plan of the sewer system, and the vacuum station is economical and has a high degree of freedom in planning.

  According to invention of Claim 6, a vacuum sewer system can be constructed | assembled using the vacuum station provided with the effect which invention of Claims 1 thru | or 5 has.

  Embodiments of the present invention will be described below with reference to the drawings. 1 to 4 are diagrams showing a schematic configuration example of a vacuum station according to the present invention. FIG. 1 shows an overall configuration, FIG. 2 shows a configuration of a vacuum pump unit, FIG. 3 shows a configuration of a water collection tank unit, and FIG. Reference numeral 4 denotes the configuration of the control panel. As shown in FIG. 1, this vacuum station includes a vacuum pump unit 100, a water collection tank unit 200, and a control panel 50. The vacuum pump unit 100 and the water collection tank unit 200 are installed underground, and the control panel 50 is placed on the ground. It is the installed configuration. In FIG. 1, GL indicates the ground level.

  The vacuum pump unit 100 includes a box 10 buried underground, a plurality of (two in the figure) roots-type vacuum pumps 12 installed in the box 10, and an exhaust cooling pipe 13. Has been. The box 10 is connected to an air supply tower 14 with an air supply fan 15 for introducing outside air into the inside and an exhaust tower 16 for exhausting the air inside. At the upper part of the box 10 is provided a loading / unloading port for loading and unloading equipment, and an iron lid 17 is attached to the loading / unloading port.

  The vacuum pumps 12 and 12 are connected in parallel. A silencer 18 is attached to each vacuum pump 12, and each silencer 18 is connected to the inlet of the exhaust cooling pipe 13 by a pipe 19, and the discharge port of the exhaust cooling pipe 13 is connected to a deodorizing device 21 by a pipe 20. The air supply / exhaust port of each vacuum pump 12 is connected to an air supply / exhaust pipe 23 via a gate valve (electric ball valve) 22. Reference numerals 24 and 25 are pressure transmitters for detecting and transmitting the pressure in the air supply / exhaust pipe 23, that is, the internal pressure of the water collecting tank 31.

  The water collection tank unit 200 includes a manhole 30 buried underground, a water collection tank 31 and a drainage pump 32 installed in the manhole 30. At the upper part of the manhole 30, a loading / unloading port for loading and unloading equipment such as a water collection tank 31 is provided, and an iron lid 37 is attached to the loading / unloading port. In the water collection tank 31, a water level detector 33 (for example, an electrode type water level detector) and a water level detector 34 (for example, a conductivity type water level detector) for detecting the water level of the sewage W are attached. Yes. A sewage inflow pipe 35 is connected to the sewage inflow port of the water collection tank 31, and a check valve unit 36 is provided in the sewage inflow pipe 35. The air supply / exhaust pipe 23 is connected to the air supply / exhaust port of the water collection tank 31. Further, a sewage pressure feed pipe 44 is connected to the sewage pressure feed port of the water collection tank 31, and a ball check valve 40 is provided in the sewage pressure feed pipe 44. A pipe extends from the sewage pumping port to the vicinity of the bottom surface of the water collection tank 31 in the water collection tank 31. An air introduction pipe is connected to the air introduction port of the water collection tank 31, and a vacuum breaker valve 29 (electric ball valve) is provided in the air introduction pipe.

  Further, the box 10 and the manhole 30 are connected by a drain pipe 26, and water such as rain water that has entered the box 10 flows into the manhole 30 under natural flow. In addition, water such as rainwater that has entered the manhole 30 is pumped and drained to a sewage pumping pipe 44 through a ball check valve 41 and a ball valve 42 by a drain pump 32. In FIG. 1, 27 is a flexible pipe for an air supply / exhaust pipe, 38 is a flexible pipe for a sewage inflow pipe, and 39 is a flexible pipe for a sewage pressure feeding pipe.

  As shown in FIG. 4, the control panel 50 is provided with a water collection tank water level display unit 51 and a water collection tank pressure display unit 52 on the panel surface. The water collection tank water level display unit 51 takes in the output signal of the water level detector 33 or the water level detector 34 via the switching circuit 54, and the sewage water level in the water collection tank 31, that is, the ultra high water level HH, the high water level H, and the low water level. L and the super low water level LL are displayed. Further, the water collection tank pressure display unit 52 takes in the output signal of the pressure transmitter 24 or the pressure transmitter 25 through the switching circuit 55, and the pressure in the water collection tank 31, that is, alarm pressure, operation start pressure, operation stop pressure. Is displayed. Reference numeral 56 denotes a pressure recorder. The pressure transmitter 25 is for backup of the pressure transmitter 24.

  The control panel 50 includes operation control means for controlling the operation of the vacuum pump in the panel. The operation control means issues an alarm when the sewage level in the water collection tank 31 is higher than the ultra high water level HH, and reversely operates the vacuum pump 12 ("ON") when the high water level H is reached. The reverse rotation operation of the vacuum pump 12 is stopped ("OFF"), and when the super low water level LL is reached, the reverse rotation operation of the vacuum pump 12 is emergency stopped and an alarm is issued. In addition, an alarm is issued when the pressure in the water collection tank 31 (pressure in the supply / exhaust pipe 23) exceeds an alarm pressure (for example, −40 kPa), and the vacuum pump 12 is adjusted when the operation start pressure (for example, −60 kPa) is reached. When the rotation operation is performed (“ON”) and the operation stop pressure (for example, −70 kPa) is reached, the normal rotation operation of the vacuum pump 12 is stopped (“OFF”). Further, the operation control means includes an operation speed control means (inverter or the like) for controlling the operation speed of the vacuum pump 12 as needed, a PLC (Programmable Logic Controller), and the like.

  Accordingly, the sewage is collected through the sewage inflow pipe 35 into the water collection tank 31 when the pressure in the water collection tank 31 is between the operation start pressure (for example, −60 kPa) and the operation stop pressure (for example, −70 kPa). At this time, since the ball check valve 40 is provided in the sewage pressure feed pipe 44, the sewage in the sewage pressure feed pipe 44 does not flow back. When the sewage water level becomes the high water level H, the vacuum pump 12 is reversely operated, the inside of the water collection tank 31 is pressurized, and the sewage W is drained through the sewage pressure feed pipe 44. At this time, since the check valve unit 36 is provided in the sewage inflow pipe 35, sewage and air do not flow back through the sewage inflow pipe 35, and the pressure of the sewage inflow pipe 35 is maintained at a negative pressure. In the normal rotation operation of the vacuum pump 12, the exhaust from the vacuum pump 12 is cooled through the exhaust cooling pipe 13, further deodorized through the deodorizing device 21, and exhausted from the exhaust tower 28.

  By arranging a plurality of vacuum pumps 12 and water collection tanks 31 and main equipment other than the control panel 50 as described above in the box 10 and the manhole 30 as the vacuum pump unit 100 and the water collection tank unit 200, respectively, Installation space is reduced.

  A plurality of (two in the figure) vacuum pumps 12 are stored in the vacuum pump unit 100, and each vacuum pump 12 is mounted together with the accessory equipment on the base 11, and the equipment mounted on the base 11 is The piping connecting other components is detachable with a simple coupling or the like. The electrical wiring is also integrated in the vacuum pump unit 100 so that it can be easily connected. Therefore, each vacuum pump 12 can be easily pulled up from the upper carry-in / out port of the box 10 together with the gantry 11. For this reason, when maintaining the vacuum pump 12, it is possible to perform inspection by pulling it up to the ground as necessary, and the maintenance management becomes easy.

  On the other hand, with respect to the water collection tank unit 200, the capacity of the water collection tank 31 is reduced, so that the size of the water collection tank unit 200 itself is reduced and the capacity of the water collection tank 31 can be easily pulled up from the manhole 30. ing. In the conventional vacuum sewer system, the capacity of the water collection tank 31 is defined as “three times the operating capacity”, and the operating capacity is about once every 15 minutes for the start-up frequency per pumping pump. (Refer to the technical manual of the vacuum sewer collection system). However, since this vacuum station operates the vacuum pump 12 in reverse to discharge the sewage in the water collection tank 31, a pressure pump is not necessary, and the start-up frequency of the pressure pump is taken into account to determine the capacity of the water collection tank 31. There is no need to do. Therefore, the capacity of the water collection tank in this vacuum station is sufficient as “the operation capacity plus the lower margin capacity and the upper margin capacity”.

  Thereby, compared with the conventional water collection tank, the capacity | capacitance of the water collection tank 31 can be made small about half. Further, the structure is such that the piping and wiring in the water collection tank unit 200 can be easily attached and detached, so that the water collection tank 31 can be easily pulled up from the manhole 30. Therefore, even when the water collection tank 31 is updated, the maintenance work is easy without the need for long-time operation stop or road blockage.

  The unitization method is not limited to a configuration in which the plurality of vacuum pumps 12 and the water collection tanks 31 are housed in separate structures, but may be configured in units by other combinations.

  FIG. 5 is a diagram showing an overall schematic configuration example of a vacuum station according to the present invention. In FIG. 5, the same reference numerals as those in FIGS. 1 to 4 denote the same or corresponding parts. The same applies to other drawings. As shown in the figure, the present vacuum station has a plurality of (two in the figure) vacuum pumps 12, accessory devices, and a control panel 50 installed as a vacuum pump unit 300 in a box 10 installed on the ground, and a water collection tank 31. And the attached device is the water collection tank unit 200 and is installed in the manhole 30 buried underground. Here, in the vacuum pump unit 300, the vacuum pumps 12 are arranged one above the other so as to save space.

  These two vacuum pumps 12 are mounted up and down on a gantry 11 with wheels 11a, and can be pulled out of the box 10 together with the gantry 11 by the wheels during maintenance. In addition, the structure which pulls out a vacuum pump is not limited to the method of attaching the wheel 11a to the mount frame 11, A various method is possible. For example, a slide rail may be attached to the mount 11 and pulled out. Also in this vacuum station, the water collection tank unit 200 has a structure in which the water collection tank can be easily pulled up from the manhole 30 as in the vacuum station having the configuration shown in FIG. Workability is improved. Other configurations and operations are the same as those of the vacuum station shown in FIG.

  FIG. 6 is a diagram showing an overall schematic configuration example of a vacuum station according to the present invention. As shown in the figure, this vacuum station is different from the vacuum station of FIG. 1 in that the box 10 of the vacuum pump unit 100 has a semi-underground structure (a structure in which only the lower half is buried underground). Other configurations and operations are the same as those of the vacuum station shown in FIG.

  Fig.7 (a) is a figure which shows the example of whole schematic structure of the vacuum station which concerns on this invention. As shown in the figure, in this vacuum station, the vacuum pump unit 400 having the configuration shown in FIG. 7B is arranged above the water collection tank 31 in the manhole 30 of the water collection tank unit 200, for example, with a scaffold. ing. In the manhole 30, the vacuum pump unit 400 and the water collection tank 31 are connected by the air supply / exhaust pipe 23, and the outputs of the pressure transmitters 24 and 25 are sent to the switching circuit 55 of the control panel 50 installed on the ground. Exhaust gas (see FIGS. 1 and 2) cooled by the exhaust cooling pipe 13 is sent to the deodorizing device 21 through the pipe 20. An air supply tower 14 and an exhaust tower 16 are provided in the manhole 30 to supply and exhaust the inside of the manhole 30.

  By adopting the configuration shown in FIGS. 1 to 4, 5, 6, and 7 in the vacuum station, this vacuum station is combined with a conventional vacuum line and a vacuum valve unit to constitute a vacuum sewer system. It is possible. At this time, when the sewage is pumped from the sewage tank 31 through the sewage pressure feed pipe 44, the positive pressure on the sewage tank 31 side and the negative pressure of the sewage inflow pipe (vacuum line) 35 are separated so A valve unit 36 is provided. In addition, a gate valve 43 is installed upstream of the check valve unit 36 in order to maintain the sewage inflow pipe 35 and the check valve unit 36. In addition, in order to minimize the size of the water collection tank unit 200, one sewage inflow pipe 35 is provided in principle. In addition, since the vacuum pump 12 cannot be operated at the time of sewage pumping, the average vacuum degree in the sewage inflow pipe 35 is −25 kPa even if air having a gas-liquid ratio of 3: 1 flows simultaneously with the sewage of the maximum amount of sewage during that time. The vacuum line, that is, the sewage inflow line, is designed so as to have a system air volume that can be kept at a low level.

Hereinafter, application examples of the vacuum station according to the present invention having the above-described configuration will be described.
(Application example 1)
8A and 8B are diagrams showing an application example 1 of a vacuum station, FIG. 8A shows a conventional example, and FIG. 8B shows an application example of a vacuum station according to the present invention. As shown in FIG. 8A, in the conventional vacuum station 71, the sewage discharged from each house 70 existing in the collection range A is sent to the sewage collection pipe (vacuum pipe line) 72 via the vacuum valve unit 74. Or it collects in the sewage collection piping (vacuum pipeline) 72 via the sewage collection piping (natural flow down pipeline) 75-1,75-2 and the vacuum valve unit 74. FIG. The collection range L1 of the vacuum station 71 was limited to a range of 2 to 3 km, and sewage from the house 70 existing in the range B away from the collection range A could not be collected.

  Therefore, as shown in FIG. 8B, the vacuum station 73 according to the present invention is installed, and the sewage discharged from the house 70 existing in the range B is passed through the vacuum valve unit 74 to the sewage inflow pipe (vacuum line). 35 is collected in the water collection tank 31 of the water collection tank unit 200 of the vacuum station 73 and sent to the existing sewage collection pipe (vacuum line) 72 through the sewage pressure feed pipe 44 (FIGS. 1, 5, 6, and 7). Thus, each house 70 existing in the range B can also be set as the sewage collection range. When the conventional vacuum station 71 is installed at the installation position of the vacuum station 73 according to the present invention, it is difficult to secure the site, and the cost also increases. Since the vacuum station 73 according to the present invention is space-saving and inexpensive, the equipment shown in FIG. 8B can be easily realized at low cost.

(Application example 2)
FIG. 9 is a diagram showing a second application example of the vacuum station, FIG. 9A shows a conventional example, and FIG. 9B shows an application example of the vacuum station according to the present invention. As shown in FIG. 9 (a), the sewage discharged from the apartment house 77 located on the hill can be collected through a sewage collection pipe (natural flow pipe) 81. However, in order to collect the sewage of the house 70 in the lowland range E other than the high collection ranges C and D, the sewage collection pipe (natural flow pipe) 82 is deepened or the manhole is located in the range E. It is necessary to install a pump and pump it to the sewage collection pipe (natural flow pipe) 82, and these methods increase the cost and make collection difficult.

  Therefore, as shown in FIG. 9 (b), a vacuum station 73 according to the present invention is provided, and the sewage discharged from each house 70 existing in the lowland area E is supplied to the sewage inflow pipe (vacuum pipe) via the vacuum valve unit 74. (Path) 35 and collected in the water collection tank 31 of the water collection tank unit 200 of the vacuum station 73 through the sewage pressure feed pipe (pressure feed pipe) 44 (FIGS. 1, 5, 6, and 7) The house 70 existing in the range E can also be set as the sewage collection range by sending it to the downflow pipeline 82). Here, the collection ranges C and D are high and the range E is low, but this only means that there is a height difference between the collection ranges. Of course, the collection range C is on a flat ground, Including the case where the range E is in a lowland.

(Application example 3)
10A and 10B are diagrams showing a third application example of the vacuum station. FIG. 10A shows a conventional example, and FIG. 10B shows an application example of the vacuum station according to the present invention. Conventionally, as shown in FIG. 10 (a), houses 70 are scattered in a low altitude range G at the end of the sewage collection pipe 81 in a range F where a sewage collection pipe (natural flow pipe) 81 is laid. When a village exists, a large number of manhole pumps 84 are provided in a low altitude range G, and sewage discharged from each house 70 collected by the manhole pump 84 is collected into a sewage water pipe (pressure feed line) 86 and sewage collection. It was necessary to collect in the manhole pump 83 through the pipe (natural flow down pipe) 81-1, and send it from here to the sewage collection pipe (natural flow down pipe) 81 through the sewage water feed pipe (pressure feed pipe) 85. Therefore, there exists a problem that the cost of a sewage collection facility becomes high.

  Therefore, in this application example, as shown in FIG. 10 (b), the vacuum station 73 according to the present invention is provided in the low altitude range G, and the sewage discharged from the houses 70 scattered in the low altitude range G The sewage inflow pipe (vacuum pipe line) 35 is collected in the water collection tank unit 200 of the vacuum station 73 through the vacuum valve unit 74, and the sewage water feed pipe (pressure feed pipe) 85 (FIGS. 1, 5, 6, and 6) 7 is sent to the sewage collecting pipe 81 under natural flow. As a result, the house 70 existing in the low altitude range G can also be made a sewage collection range at low cost.

  Although the embodiments of the present invention have been described above, the present invention is not limited to the above-described embodiments, and various modifications can be made within the scope of the technical idea described in the claims and the specification and drawings. Is possible. It should be noted that any shape or structure not directly described in the specification and drawings is within the scope of the technical idea of the present invention as long as the effects and advantages of the present invention are exhibited. For example, the material of the box 10 may be determined according to installation conditions such as concrete, resin, metal, and the like. 5 shows an example in which the control panel 50 is installed on the side of the box 10, the control panel 50 may be an upper part or a lower part of the box 10.

It is a figure which shows the example of whole schematic structure of the vacuum station which concerns on this invention. It is a figure which shows the schematic structural example of the vacuum pump unit of the vacuum station which concerns on this invention. It is a figure which shows the schematic structural example of the water collection tank unit of the vacuum station which concerns on this invention. It is a figure which shows the schematic structural example of the control panel of the vacuum station which concerns on this invention. It is a figure which shows the example of whole schematic structure of the vacuum station which concerns on this invention. It is a figure which shows the example of whole schematic structure of the vacuum station which concerns on this invention. It is a figure which shows the example of whole schematic structure of the vacuum station which concerns on this invention. It is a figure which shows the example of whole schematic structure of the vacuum station which concerns on this invention. It is a figure which shows the example of application of the vacuum station which concerns on this invention. It is a figure which shows the example of application of the vacuum station which concerns on this invention. It is a figure which shows the example of application of the vacuum station which concerns on this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 Box 11 Mount 12 Vacuum pump 13 Exhaust cooling piping 14 Supply tower 15 Supply fan 16 Exhaust tower 17 Iron lid 18 Silencer 19 Pipe 20 Pipe 21 Deodorizer 22 Gate valve 23 Supply / exhaust pipe 24 Pressure transmitter 25 Pressure transmitter 26 Drain pipe 27 Flexible pipe for supply / exhaust pipe 28 Exhaust tower 29 Vacuum break valve 30 Manhole 31 Drain tank 32 Drain pump 33 Electrode type water level detector 34 Dielectric constant type water level detector 35 Sewage inflow pipe (vacuum pipe)
36 Check valve unit 37 Iron cover 38 Flexible pipe for sewage inflow pipe 39 Flexible pipe for sewage pressure feed pipe 40 Ball check valve 41 Ball check valve 42 Ball valve 43 Gate valve 44 Sewage pressure feed pipe (pressure feed line)
50 Control Panel 51 Catchment Tank Water Level Display Unit 52 Catchment Tank Pressure Display Unit 54 Switching Circuit 55 Switching Circuit 56 Pressure Recorder 70 Residential 71 Conventional Vacuum Station 72 Sewage Collecting Piping (Vacuum Line)
73 Vacuum Station of the Present Invention 74 Vacuum Valve Unit 75 Sewage Collecting Piping (Natural Downflow Pipeline)
77 Apartment house 81 Sewage collection pipe (natural flow pipe)
82 Sewage collection piping under natural flow (natural flow pipe)
83 Manhole pump 84 Manhole pump 85 Sewage water supply pipe (pressure feed line)
86 Sewage water supply pipe (pressure feed line)
100 Vacuum pump unit 200 Catchment tank unit 300 Vacuum pump unit 400 Vacuum pump unit

Claims (6)

A vacuum pump unit equipped with a roots-type vacuum pump;
A water collection tank unit comprising a water collection tank;
It consists of a control panel that controls the vacuum pump to run forward and backward,
The control panel is installed on the ground,
A vacuum station, wherein at least the water collection tank unit is installed underground. The vacuum station according to claim 1.
A vacuum station characterized in that main equipment including a vacuum pump in the vacuum pump unit is installed on a mount and is removable. The vacuum station according to claim 1 or 2,
The vacuum station, wherein the plurality of vacuum pumps in the vacuum pump unit are arranged one above the other. The vacuum station according to any one of claims 1 to 3,
A vacuum station characterized in that the water collection tank in the water collection tank unit can be taken in and out. The vacuum station according to any one of claims 1 to 4,
A vacuum station characterized in that the total land area required for facility installation is 10 m ² or less. In a vacuum sewer system equipped with a vacuum station, vacuum line and vacuum valve unit,
A vacuum sewer system using the vacuum station according to claim 1 for the vacuum station.

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