JP4611662B2 - Vacuum valve unit - Google Patents

Description

  The present invention relates to a vacuum valve unit used in a vacuum sewer system, and more particularly to a vacuum valve unit suitable for installation in a residential area where installation space is limited.

In recent years, as a sewer system for collecting waste water from a house, a vacuum sewer system for collecting by vacuum suction has been developed and used instead of a conventional natural flow sewer system. As shown in FIG. 1, this vacuum sewer system is adjacent to a residential land drainage facility composed of a natural flow pipe 101, a suction pipe 107, and a vacuum valve unit 102 installed underground in the residential land. A vacuum pipe 103 installed in a basement of a public land such as a public road, and a vacuum station 104 provided on the downstream side of the vacuum pipe 103. In this vacuum sewer system, the sewage discharged from the house flows into the sewage basin 105 of the vacuum valve unit 102 through the natural flow pipe 101 and is temporarily stored therein. When a predetermined amount or more of sewage Q in the sewage basin 105 is accumulated, the vacuum valve 106 of the vacuum valve unit 102 is opened, and the sewage Q is applied by the vacuum suction force applied to the vacuum pipe line 103 connected to the vacuum valve 106. Is collected in the vacuum station 104 through the vacuum line 103.

By the way, in the above-described vacuum sewer system, the vacuum valve unit 102 installed in the residential land includes, for example, sewage water 105, a vacuum valve 106 connected to the vacuum pipe 103, and one end of sewage as shown in Patent Document 1. The vacuum valve 106 is composed of a housing block 107 which is disposed in 105 and connected to the vacuum valve 106 at the other end, a controller (not shown) for controlling the opening and closing of the vacuum valve 106, a sensor (not shown) for detecting the water level in the sewage water, and the like. These components are housed and arranged in one sewage basin 105 to form a unit. Here, the sewage basin 105 includes a concrete one and a resin one such as FRP, and these are properly used depending on the conditions of the installation place. When this vacuum valve unit 102 is installed in a residential land owned by a private company or in a Kushiro channel, a unit using a small resin wastewater tank 105 is selected. As shown in FIG. It was replaced with one of the residential land 107 connected to the ground and buried in the residential land or in the basement of Kushiro.
Japanese Patent Laid-Open No. 10-60995

  However, as described above, when the vacuum valve unit 102 is embedded and installed in a residential land or a Kushiro, not only the installation space is small in the actual installation site, but also the building is built to the full site, In some cases, the space required for the embedded installation of the vacuum valve unit 102 cannot be secured. In areas where the groundwater level is high, such as a port town, the underground in the residential area is not only narrow, but there are many places where there is a risk that houses and fences may collapse due to excavation. In some cases, the area that can be cut was limited.

  Conventionally, in order to solve such a problem, efforts have been made to minimize the installation space of the vacuum valve unit 102 by reducing the size of the vacuum valve unit 102 or using the vacuum valve 106 having a small diameter. Current small vacuum valve units include a circular shape having a plane dimension of about φ600 mm and a rectangular shape having a size of 500 mm × 1000 mm. However, even if these small ones are selected, since the vacuum valve unit 102 is installed underground, a certain scale of excavation work is necessary, and the above-described problems cannot be solved completely. Further, if the current vacuum valve unit 102 is further reduced in size and diameter, problems such as difficulty in maintenance and easy blocking of foreign matter occur.

  The present invention has been made in view of the above points, and an object of the present invention is to provide a vacuum valve unit that can be easily installed in a private residential land with a small installation space.

In order to solve the above-mentioned problem, the invention according to claim 1 is embedded in the basement of the residential land where the house was built, and when one end of the residential land where the sewage drained from the house flows in through the natural flow pipe, A vacuum valve connected to a vacuum pipe buried underground in a public land adjacent to the residential land, the other end being connected to a suction pipe disposed in the residential land, and a storage case installed on the residential land The vacuum valve is stored inside the storage case, the suction pipe protrudes from the top of the housing lot and is connected to the vacuum valve, and the storage case is provided with an air intake for taking air into the housing lot. In the vacuum valve unit.

According to a second aspect of the present invention, in the vacuum valve unit according to the first aspect, a vacuum gate valve that shuts off the supply of vacuum to the vacuum valve is provided on the downstream side of the vacuum valve, and the vacuum gate valve is disposed inside the storage case. It is stored and arranged in

According to a third aspect of the present invention, in the vacuum valve unit according to the first aspect, a vacuum gate valve for shutting off the supply of vacuum to the vacuum valve is provided downstream of the vacuum valve, and the vacuum gate valve is buried underground. It is characterized by that .

According to a fourth aspect of the present invention, in the vacuum valve unit according to any one of the first to third aspects, a storage tank into which waste water from the house flows is provided upstream of the housing land, and the storage tank is underground. In addition to being buried , the storage tank is provided with an air intake port for taking in air, and the storage case is not provided with an air intake port for taking air into the housing land .

According to the first aspect of the invention, the following excellent effects can be obtained.
(A) When a vacuum valve unit is installed, it is not necessary to newly excavate the residential land, and the installation work can be performed very easily.
(B) The vacuum valve unit can be installed even when a sufficient excavation space cannot be secured in the residential land.
(C) Since the storage case is installed in the upper part of the housing lot, the installation area of the vacuum valve unit is small, and the vacuum valve vacuum valve unit can be easily installed even when the installation space in the housing lot is small.
(D) Moreover, if a partition plate is installed between the housing lot and the storage case, it is possible to prevent sewage in the housing lot from scattering and being applied to a vacuum valve, an accessory device, or the like in the storage case.
(E) Since the vacuum valve is stored and placed in a storage case on the housing floor, the structure of the underground drainage facility becomes simple, and the installation space in the underground can be minimized. A vacuum valve unit can be installed in a place where sufficient excavation space cannot be secured. In addition, since the vacuum valve is installed on the ground, the maintenance management of the vacuum valve unit becomes very easy.
(F) Since the vacuum valve is housed and disposed in a housing case provided on the housing ground, noise generated by driving the vacuum valve and the attached device can be reduced. Moreover, it can prevent that a vacuum valve, an auxiliary | assistant apparatus, and a suction pipe are exposed to a wind and rain.

According to invention of Claim 4 , in addition to the effect of said (a) thru | or (f), the following effect is acquired.
・ Since a storage tank is provided upstream of the housing lot where the storage case is installed at the top, it is possible to prevent the drainage from overflowing even if the drainage from the house temporarily increases.

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

  FIG. 2 is a view showing the vacuum valve unit 1-1 according to the first embodiment of the present invention. FIG. 2 (a) is a schematic sectional side view of the vacuum valve unit 1, and FIG. 2) is a cross-sectional view taken along the line II-II. The vacuum valve unit 1-1 includes an underground portion 40 including a sewage basin 20 using a residential land buried underground in a privately owned residential land, a suction pipe 12, a vacuum valve 11, a vacuum It comprises a ground part 45 configured by housing a vacuum gate valve 15, an opening / closing controller 13, a sensor tube 14, and the like, which are accessory parts of the valve 11, in a storage case 10.

  Conventionally, the sewage reservoir 20 in the underground part 40 uses a residential land basin that is connected to a natural flow-down type pipe and buried underground as a residential drainage facility. This housing land is configured as a tank with a bottom using piping parts made of vinyl chloride resin having a diameter of, for example, about 300 to 500 mm. Further, the sewage reservoir 20 is connected to a sewage inflow pipe 21 connected to a natural flow pipe in the residential land, and is open to the side surface of the sewage reservoir 20.

  On the other hand, the ground part 45 has a suction pipe 12 projecting from the upper part of the sewage basin 20 and one end thereof disposed in the sewage slag 20 and the vacuum valve 11 attached to the other end of the suction pipe 12. A vacuum gate valve 15 attached downstream of the vacuum valve 11, an opening / closing controller 13 for controlling the opening / closing of the vacuum valve 11, and a sensor tube 14 for detecting the water level in the sewage basin 20, and these components Is housed in a housing case 10 installed at the upper part of the housing land 20.

  The vacuum valve 11 is a valve that opens and closes due to a differential pressure between the negative pressure in the vacuum line 17 connected to the downstream side of the vacuum valve unit 1-1 and the atmospheric pressure in the suction pipe 12. The operation is controlled by a sensor tube 14 and an open / close controller 13 which are attached to the wastewater 20 by extending. The vacuum gate valve 15 is a valve for shutting off the supply of vacuum to the vacuum valve 11. When the vacuum valve 11 fails, when the vacuum valve 11 is replaced or when the vacuum valve 11 is tested. It is what you use. Reference numeral 18 denotes an emergency drain hose. On the other hand, a partition plate 16 is provided between the sewage reservoir 20 in the underground portion 40 and the storage case 10 in the ground portion 45 so that the sewage in the sewage reservoir 20 does not scatter into the upper storage case 10. ing.

  In FIG. 3, the state which installed the vacuum valve unit 1-1 of the said structure in the residential land is shown. Usually, in the residential land 54, a natural flow pipe 51 and a residential land mass 52 are buried underground as residential drainage equipment for transferring wastewater from facilities such as baths and toilets. As shown in FIG. 3, the storage case 10 that constitutes the ground portion 45 of the vacuum valve unit 1-1 is a housing land 52 located at the most downstream side of the drainage facility in the housing land (the first entry into the housing land 54 from the public land 55). Installed on the housing land 52) located in front. The waste water from the house flows into the sewage basin 20 (house land masu 52) of the vacuum valve unit 1-1 through the natural flow-down type pipeline 51 and the plurality of housing lands 52, and from the vacuum valve unit 1-1 to the housing land 54. Is transferred to a vacuum sewage pipe 53 buried under a public land 55 such as a public road.

  Next, the operation of the vacuum valve unit 1-1 will be described with reference to FIG. 2. The sewage discharged from the house flows down the natural flow type pipe 51 and flows into the sewage sewage 20 from the sewage inflow pipe 21. Stay here. When the sewage in the sewage masu 20 reaches a predetermined water level, the vacuum valve 11 is opened by the sensor pipe 14 via the open / close controller 13, and the sewage in the sewage mushroom 20 is sucked up from the suction pipe 12 and pumped to the vacuum line 17. Is done. The sewage transferred through the vacuum line 17 is collected in a vacuum station (not shown). When dirty water in the dirty water 20 is sucked up and its water level is lowered, the vacuum valve 11 is closed by the sensor tube 14 via the open / close controller 13.

FIG. 4 is a view showing a vacuum valve unit 1-2 which is a second embodiment of the vacuum valve unit according to the present invention. In FIG. 4, parts common to the vacuum valve unit 1-1 shown in FIG. 2 are denoted by the same reference numerals, and detailed description thereof is omitted. The vacuum valve unit 1-2 is different from the vacuum valve unit 1-1 shown in FIG. 2 in that it is buried in the basement downstream of the vacuum pipe line 17 in place of the vacuum gate valve 15 disposed in the storage case 10. This is the point that the buried gate valve 25 is attached to the portion. Thus, the apparatus installed in the storage case 10 can be changed according to the state of the installation space of the vacuum valve unit 1-2, whereby the size of the storage case 10 can be changed.

  FIG. 5 is a diagram showing a vacuum valve unit 1-3 which is a third embodiment of the vacuum valve unit according to the present invention. In FIG. 5, parts common to the vacuum valve unit 1-1 shown in FIG. 2 are denoted by the same reference numerals, and detailed description thereof is omitted. The vacuum valve unit 1-3 is different from the vacuum valve unit 1-1 in that a storage tank 30 is installed on the upstream side of the sewage reservoir 20. This storage tank 30 is formed as a tank with a bottom using a piping part made of vinyl chloride resin similarly to the sewage basin 20, and the storage tank 30 is connected to a natural flow pipe in a residential land. A sewage inflow pipe 21 is attached. Moreover, between the storage tank 30 and the sewage trough 20, the connection pipe line 31 which connects these is provided. This storage tank 30 prevents the sewage collected in the sewage basin 20 from overflowing by storing the sewage when it reaches a peak water amount due to a temporary increase in the amount of effluent due to drainage from a bath or the like. Is.

  The upper part of the storage tank 30 is exposed to the ground, and an air intake port 32 is provided at the upper end thereof. In addition to installing the air intake 32 at the upper part of the storage tank 30 as in the present embodiment, a pipe that extends to the ground is attached to a natural flow-type pipe as in the case of a conventional residential land drainage facility. It is also possible to install at this tip.

  FIG. 6 is a view showing a vacuum valve unit 1-4 which is a fourth embodiment of the vacuum valve unit according to the present invention. In FIG. 6, parts common to the vacuum valve unit 1-1 shown in FIG. The vacuum valve unit 1-4 differs from the vacuum valve unit 1-1 in that it is buried in a portion buried in the basement downstream of the vacuum pipe line 17 in place of the vacuum gate valve 15 arranged in the storage case 10. This is the point where the gate valve 25 is attached and the point where the storage tank 30 is installed on the upstream side of the sewage reservoir 20.

  In each of the above-described embodiments, the case where the storage case 10 and each device stored in the storage case 10 are installed on the upper part of the sewage reservoir 20 has been shown. Each of the devices can be attached to a wall surface or the like adjacent to the installation location of the vacuum valve units 1-1 to 1-4 to be wall-mounted. In addition, when the installation space of the storage case 10 cannot be widened, it is possible to downsize the storage case 10 by installing a part of the device stored in the storage case 10 underground.

  When the storage tank 30 is not provided, an air intake slit portion (not shown) may be provided in the storage case 10 of the ground portion 45 so that air can be taken into the sewage water 20 from the slit portion.

  In each of the above embodiments, the case where the entire vacuum valve 11 is installed on the ground is shown. However, the vacuum valve 11 is not limited to the case where the entire vacuum valve 11 is installed on the ground. It can also be installed with the ground exposed and the other part buried underground.

  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, structure, and material not directly described in the specification and drawings are within the scope of the technical idea of the present invention as long as the effects and advantages of the present invention are exhibited.

It is a figure which shows the conventional vacuum type sewer system. BRIEF DESCRIPTION OF THE DRAWINGS It is a figure which shows the vacuum valve unit (Example 1) concerning embodiment of this invention, The figure (a) is a schematic sectional side view, The figure (b) is II-II arrow sectional drawing of the figure (a). It is. It is a figure which shows the state which installed the vacuum valve unit 1 in residential land. It is a figure which shows the vacuum valve unit (Example 2) concerning embodiment of this invention, The figure (a) is a schematic sectional side view, The figure (b) is IV-IV arrow sectional drawing of the figure (a). It is. BRIEF DESCRIPTION OF THE DRAWINGS It is a figure which shows the vacuum valve unit (Example 3) concerning embodiment of this invention, The figure (a) is a schematic sectional side view, The figure (b) is the VV arrow sectional drawing of the figure (a). It is. It is a figure which shows the vacuum valve unit (Example 4) concerning embodiment of this invention, The figure (a) is a schematic sectional side view, The figure (b) is VI-VI arrow sectional drawing of the figure (a). It is.

1; vacuum valve unit 10; storage case 11; vacuum valve 12; suction pipe 13; open / close controller 14; sensor pipe 15; vacuum gate valve 16; partition plate 17; Gate valve 30; Reservoir 31; Connection pipe 32; Air intake 40; Underground part 45; Above-ground part 51; Natural flow-type pipe 52; Residential land 53; Vacuum sewer pipe 54; Residential land 55;

Claims (4)

When the housing land buried under the housing land where the house was built and the sewage drained from the house flowed in through the natural flow pipe,
One end is connected to a vacuum pipe buried in the basement of the public land adjacent to the residential land, and the other end is connected to a suction pipe installed in the residential land,
A storage case installed on the housing land,
The vacuum valve is stored in a storage case, the suction pipe is projected from the upper part of the housing lot and connected to the vacuum valve,
A vacuum valve unit, wherein the storage case is provided with an air intake port for taking air into the housing land. The vacuum valve unit according to claim 1,
A vacuum gate valve that shuts off the vacuum supply of the vacuum valve is provided downstream of the vacuum valve,
The vacuum valve unit, wherein the vacuum gate valve is housed and disposed in a housing case. The vacuum valve unit according to claim 1,
A vacuum gate valve that shuts off the vacuum supply of the vacuum valve is provided downstream of the vacuum valve,
The vacuum valve unit is characterized in that the vacuum gate valve is buried underground. The vacuum valve unit according to any one of claims 1 to 3, together with the waste water from the house to the upstream side of the land masses of the reservoir to flow provided to embed the said reservoir underground,該貯Tomeso The vacuum valve unit is characterized in that an air intake port for taking in air is provided, and the storage case is not provided with an air intake port for taking air into the housing land .

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