JPH07150616A - Soil chamber with vacuum valve - Google Patents

Abstract

PURPOSE:To facilitate maintenance by providing a slit at right angles to the axis of a pipe to a side wall of a vacuum soil pipe piped in the horizontal direction and, at the same time, inserting a gate type partitioning valve in the slit air-tightly in an insertable manner. CONSTITUTION:In the case maintenance or component exchange is made in the inside of a soil chamber with a vacuum valve, a gate type partitioning valve 9 is pulled out from a slit 81 with a handle 95. After that, the partitioning valve 9 is reversed, and a valve section 92 is inserted into the slit 81 until the upper surface of a sealed section 91 is made to adhere to the peripheral surface 82 around the slit. Then, maintenance or component exchange is made inside the soil chamber 1. In addition, the valve section 92 is pulled out to reverse, and an insertion section 93 is inserted into the slit 81.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a sewage box with a vacuum valve.

[0002]

2. Description of the Related Art A vacuum type sewerage facility temporarily stores wastewater discharged from wastewater discharge points such as toilets, washrooms, sinks, and bathtubs at home through a drainage basin in a sewage basin with a vacuum valve. The sewage that has flowed into the masu is collected through a vacuum sewage main pipe at a vacuum pump station and then sent to the sewage treatment plant. The sewage box with a vacuum valve used at this time is, as described in JP-A-3-247827,
Consisting of a sewage basin, a detection pipe, a sewage suction pipe, a vacuum valve, and a vacuum sewage pipe, the sewage that naturally flows down from a sewage discharge point such as a toilet via a drainage basin into the sewage basin. Save
When the amount of dirty water exceeds a certain amount (upper level), the detector pipe detects it and the vacuum valve opens based on the command from the detector pipe. Then, since it is connected to the vacuum sewage pipe that is in a vacuum, the sewage is automatically sucked from the sewage suction pipe, and flows into the vacuum sewage passage and the vacuum sewage main pipe. After the amount of sewage in the drainage basin falls below a certain level (lower level) and a certain amount of air is sucked in, the vacuum valve automatically closes and the sewage collects in the sewage basin again. .

This sewage box with a vacuum valve is disclosed in Japanese Patent Laid-Open No. 3-24.
As described in Japanese Patent No. 7827, a sluice valve is provided in a vacuum wastewater pipe located downstream of the vacuum valve, and the sluice valve is closed so that the vacuum of the vacuum sewage main pipe, which is in a vacuum state, is not broken. After that, maintain the inside of the mister with vacuum valve and replace parts.

[0004]

However, since this sluice valve is provided in the vacuum dirty water pipe, it is necessary to prevent air from leaking from this valve portion. Therefore, in the sewage basin with the vacuum valve described in the above publication, the vacuum sewage pipe that is laid in the horizontal direction is bent in the vertical direction,
A sluice valve is provided in the curved portion bent in the vertical direction.When the valve is closed, the sluice valve is moved downward to close the portion that is vertically piped, and when the valve is opened, the curved portion is bent. Move it upward and open it. That is, the sluice valve can be moved up and down in the vacuum sewage pipe to open and close.

Therefore, in the portion where the sluice valve is provided, the horizontal vacuum waste water pipe is bent in the vertical direction. Therefore, it is necessary to bend the vacuum sewage pipe in the horizontal direction again in order to take it out from the sewage box with the vacuum valve. 2 like this
Since it bends many times, the loss increases and the transport efficiency decreases. Also, as described above, bend the vacuum wastewater pipe in the vertical direction,
Further, since it is bent in the horizontal direction to be discharged from the sewage basin with a vacuum valve, the outlet is located below the sewage basin with a vacuum valve, and the outflow pipe connected to the outlet has a deep soil cover.

If the outlet is intended to be shallow, it is necessary to provide a vacuum valve or the like at a high position. However, if this is done, the distance between the waste water container and the vacuum valve or the like becomes long. Therefore, there is a problem that the sewage suction pipe becomes long, the loss is large due to suction, and the transport efficiency is reduced. Also, when installing and constructing a sewage basin with a vacuum valve, in this narrow sewage basin with a vacuum valve, bend in the vertical direction or in the horizontal direction for piping,
There is a problem that the construction time becomes long. All of these problems are caused by bending the vacuum sewage pipe. Then, the objective of this invention is providing the sewage box with a vacuum valve which can provide a partition valve, without bending a vacuum sewage pipe.

[0007]

SUMMARY OF THE INVENTION The present invention has been made to achieve the above object, and includes a sewage box for temporarily storing sewage, and a detection pipe for detecting the amount of sewage collected in the sewage box. In a sewage basin with a vacuum valve, which is composed of a sewage suction pipe for sucking sewage from the sewage basin and a vacuum valve provided between the sewage suction pipe and a vacuum sewage pipe communicating with the vacuum sewage main line, a substantially horizontal direction A slit is provided on the side wall of the vacuum waste water pipe arranged in the direction substantially perpendicular to the pipe axis, and a gate-type sluice valve that can freely move in and out is inserted in the slit in a substantially airtight manner.

Since the gate type sluice valve used in the sewage box with a vacuum valve of the present invention is inserted in the slit in a substantially airtight manner, the vacuum of the vacuum sewage pipe is not broken. There are various methods of substantially airtight insertion. For example, the cross section of the valve body may be substantially the same as the shape of the slit, and the valve body may be inserted so that air does not leak from between the slit and the slit. However, as in claim 2, the gate type sluice valve is provided on the upper surface of this sealing portion, and the sealing portion whose upper and lower surfaces are in close contact with the outer peripheral surface of the slit peripheral portion of the vacuum wastewater pipe in a substantially airtight manner. A valve part that is shaped to close the vacuum wastewater pipe when inserted into the slit, and a shape that is provided on the lower surface of this sealing part and that does not block the vacuum wastewater pipe when inserted into the slit. When it is made up of the inserted part and
Even if the air gap between the valve body and the slit is not substantially airtight, when the insertion portion or the valve body is inserted into the slit, the upper surface or the lower surface of the sealing portion adheres almost airtightly to the outer peripheral surface of the slit peripheral portion of the vacuum wastewater pipe. This is preferable because the valve body can be easily inserted and pulled out.

This gate type sluice valve is usually installed in a state where the vacuum sewage pipe is not closed, and the valve is closed when the inside of the sewage box with a vacuum valve is maintained or when parts are replaced. When the gate type sluice valve does not block the vacuum waste water pipe, the waste water flows in the vacuum waste water pipe. Therefore, if the floating material floating in the flowing wastewater is clogged inside the slit, or if microorganisms grow in the slit and become clogged, it may not be possible to close it when closing the valve. It is preferable to prevent the suspended matter from being clogged in the slits and the growth of microorganisms.

There are various methods for doing this,
As in claim 3, when the insertion part of claim 2 has substantially the same shape as the space of the slit between the outer peripheral surface and the inner peripheral surface of the slit peripheral portion of the vacuum wastewater pipe, the insertion part is inserted into this slit. At this time, since the inside of the slit is closed by this insertion portion, suspended matters are not accumulated and microorganisms do not propagate, which is preferable.

[0011]

In the sewage basin with a vacuum valve of the present invention, a slit is provided in the side wall of the vacuum sewage pipe which is laid in a substantially horizontal direction in a direction substantially perpendicular to the pipe axis, and a gate type sluice valve is provided in the slit. Since it is airtightly inserted in and out, the vacuum sewage pipe is always opened with the gate type sluice valve not blocking the vacuum sewage pipe. Then, when the vacuum valve of the sewage basin with a vacuum valve is opened, sewage flows from the sewage basin part to the vacuum sewer main. At this time, since the gate type sluice valve is almost airtight, the vacuum of the vacuum sewage pipe cannot be broken.

When performing maintenance of the inside of the sewage box with a vacuum valve or replacement of parts, the vacuum sewage pipe is closed by this gate type sluice valve and the pipe is closed. Then, the space inside the sewage basin with a vacuum valve and the space inside the vacuum sewage main with vacuum are disconnected, so even if the inside of the sewage basin with a vacuum valve is at atmospheric pressure, the vacuum sewage main is affected. Absent.
Therefore, there is no problem even if the inside of the drainage basin with a vacuum valve is maintained or parts are replaced.

According to a second aspect of the present invention, the gate type sluice valve has a sealing portion having a shape in which an upper surface and a lower surface are substantially airtightly adhered to an outer peripheral surface of the slit peripheral portion of the vacuum wastewater pipe. A valve part that is provided on the upper surface of the sealing part and closes the vacuum waste water pipe when inserted into the slit, and a valve part that is provided on the lower surface of the sealing part and closes the vacuum waste water pipe when inserted into the slit. The gate type sluice valve makes it easy to open and close the vacuum sewage pipe when the insertion part is formed in a non-shaped shape. That is, this insertion portion is always inserted into the slit up to the sealing portion. Then, since the insertion portion has a shape that does not block the vacuum dirty water pipe, there is no problem in passing the dirty water through the vacuum dirty water pipe. Moreover, since the lower surface of the sealing portion is shaped to be almost airtightly adhered, the lower surface of this sealing portion is sucked by the vacuum of the vacuum waste water pipe, and this lower surface is almost airtightly adhered to the outer peripheral surface of the slit peripheral portion. The vacuum in the dirty pipe cannot be broken.

When maintaining the inside of the sewage box with a vacuum valve or replacing parts, the gate type sluice valve is pulled out from the slit, and the valve portion provided on the opposite side of the sealing portion is sealed in the slit. Insert up to. Then, when the valve portion is inserted into the slit, the vacuum waste water pipe is closed, so that the vacuum waste water pipe is closed. Moreover, since the upper surface of the sealing portion to which the valve portion is attached has a shape that is substantially airtightly adhered to the outer peripheral surface of the slit peripheral portion, the upper surface of this sealing portion is sucked by the vacuum of the vacuum waste pipe, and this upper surface is It adheres to the outer peripheral surface of the slit peripheral part almost airtightly and the vacuum of the vacuum waste pipe is not broken.

Further, since the outer peripheral surface of the peripheral portion of the slit of the vacuum waste water pipe is substantially airtightly adhered between the upper surface and the lower surface of the sealing portion, the gap between the slit and the valve body or the insertion portion is almost closed. It is not necessary to make it airtight, and this gate type sluice valve can be easily put in and out from the slit. or,
When the insertion portion has substantially the same shape as the space of the slit formed between the outer peripheral surface and the inner peripheral surface of the slit peripheral portion of the vacuum wastewater pipe, the insertion portion is formed in the slit. , The inside of this slit is closed by this insertion part, so that the suspended matter in the sewage does not enter this slit and the microorganisms do not propagate.

[0016]

EXAMPLE Next, an example of the sewage box with a vacuum valve of the present invention will be described. 1 to 3 show an embodiment of a sewage basin with a vacuum valve of the present invention, FIG. 1 is an explanatory view showing the sewage basin with a vacuum valve, and FIG. 2 is a gate used for the sewage basin with a vacuum valve of FIG. FIG. 3 is a perspective view of the type sluice valve, FIG. 3 shows a gate sluice valve portion of the sewage box with a vacuum valve in FIG. 1, and (a) is an explanatory view showing a state in which the vacuum sewage pipe is not blocked, (b) FIG. 6 is an explanatory view showing a state in which the vacuum dirty water pipe is closed.

In FIGS. 1 to 3, reference numeral 1 denotes a sewage box with a vacuum valve. The structure of the sewage cell 1 with a vacuum valve is a partition plate 1.
A vacuum valve chamber 3 is divided into upper and lower parts by 1 and a vacuum valve 2 is installed in the upper part, and a lower part is a waste water container part 4 for temporarily collecting waste water. Sewage discharged from sewage outlets such as toilets, washrooms, sinks, and baths at home will naturally flow into the sewage draining section 4 from the sewage inlet pipe 5 through the drainage basin. Reference numeral 6 denotes a detector pipe. The detector pipe 6 hangs in the wastewater container 4, and when the wastewater accumulates, the atmospheric pressure in the detector pipe 6 rises, and the change in the atmospheric pressure detects the height of the wastewater. The vacuum valve 2 opens when the level exceeds the upper level. Further, when the pressure becomes lower than the lower level, the vacuum valve 2 is closed by detecting the change in atmospheric pressure.

Reference numeral 7 is a sewage suction pipe made of vinyl chloride resin. One end 75 of the sewage suction pipe 7 is hung down to near the lower level of the sewage basin and the other end is connected to the vacuum valve 2. ing. The sewage suction pipe 7 may be made of any material as long as it has good durability. For example, concrete, stainless steel, metals such as iron, inorganic substances such as ceramics, glass fiber reinforced ester resin, vinyl chloride resin,
A synthetic resin such as ethylene resin is suitable. In particular, vinyl chloride resin is most suitable.

The end of the vacuum valve 2 to which this sewage suction pipe 7 is connected becomes a vacuum vacuum sewage pipe 8, and the end of this vacuum sewage pipe 8 is connected to the main sewer pipe. Therefore, when the vacuum valve 2 is opened, the inside of the sewage suction pipe 7 is connected to the vacuum sewage pipe 8 so that the inside of the sewage suction pipe becomes a vacuum, and the sewage basin 4 sucks the sewage,
After passing through the sewage suction pipe 7 and the vacuum sewage pipe 8 to the vacuum sewage main pipe, the sewage is collected at a vacuum pump station and is then sent to the sewage treatment plant. The vacuum waste water channel 8 is shown in FIG.
As shown in FIG. 2, the inside of the sewage basin with a vacuum valve 1 is arranged substantially horizontally, and a slit 81 is provided above the side wall of the vacuum sewage pipe 8 in a direction substantially perpendicular to the pipe axis. The outer peripheral surface 82 is substantially horizontal.

Reference numeral 9 is a gate type sluice valve provided in the vacuum waste water pipe 8. This gate type sluice valve 9 is a sealing part 9
1, a valve portion 92, and an insertion portion 93. The upper surface and the lower surface of the sealing portion 91 are substantially horizontal, and are substantially airtightly adhered to the outer peripheral surface 82 of the slit peripheral portion. Valve part 9
2 is provided on the upper surface of the sealing portion 91, and the valve portion 92
Is inserted into the slit 81 until the upper surface of the sealing portion 91 contacts the outer peripheral surface 82 of the slit peripheral portion, the vacuum waste water pipe 8 is closed. The insertion portion 93 is provided on the lower surface of the sealing portion 91, and the shape of the insertion portion 93 is substantially the same as the space of the slit formed between the outer peripheral surface 82 and the inner peripheral surface of the slit peripheral portion of the vacuum dirty water pipe 8. It is shaped. Therefore,
When the insertion portion 93 is inserted into the slit 81 until the lower surface of the sealing portion 91 contacts the outer peripheral surface 82 of the slit peripheral portion, the space of the slit is closed. A breather pipe 10 is connected to the vacuum valve 2 and its tip is open to the atmosphere.

Next, the operation of the sewage box 1 with a vacuum valve will be described. Normally, the vacuum valve 2 is closed. The gate type sluice valve 9 has the insertion portion 93 in the slit 81,
It is inserted until the lower surface of the sealing portion 91 comes into close contact with the outer peripheral surface 82 of the slit peripheral portion. Because it looks like this,
The lower surface of the sealing portion 91 is substantially airtightly adhered to the outer peripheral surface 82 of the slit peripheral portion, and the vacuum in the vacuum dirty water channel 8 can be held,
Further, since the insertion portion 93 blocks the inside of the slit 81,
The suspended matter of the sewage flowing in the vacuum sewage channel 8 is the slit 8
1 does not accumulate and the microorganisms do not propagate in the slit 81.

The sewage discharged from sewage discharge points such as toilets, washrooms, sinks, and bathtubs at home naturally flows down and flows from the drainage basin into the sewage basin section 4 through the sewage basin section 4 and the sewage basin section. It is temporarily stored in 4. At this time, since the wastewater container 4 communicates with the atmosphere through the ventilation pipe 12, the wastewater container 4
The inside of the is at atmospheric pressure. Therefore, the sewage will naturally flow from the sewage discharge point without any trouble. When the amount of sewage in the sewage basin 4 increases and becomes higher than the upper level, the detection pipe 6 detects and the vacuum valve 2 opens.

Then, the inside of the sewage suction pipe 7 is connected to the vacuum vacuum sewage pipe 8, so that the inside of the sewage suction pipe 7 becomes a vacuum, the sewage in the sewage box 4 is sucked, and the sewage is automatically converted into the vacuum sewage pipe 8.
To the vacuum sewer main. When the amount of sewage in the sewage basin 4 is gradually reduced and finally falls below the lower level, and air comes in from the lower end of the sewage suction pipe 7,
The detection pipe 6 detects this pressure change, and after suctioning for a while, the vacuum valve 2 is closed. In this way, domestic wastewater flows into the sewer main.

When the inside of the sewage basin with vacuum valve 1 is to be maintained or parts are replaced, the gate type sluice valve 9 is pulled up from the slit 81 by holding the handle 95, and the gate type sluice valve 9 is turned upside down and sealed. The valve portion 92 formed on the upper surface of the portion 91 is inserted into the slit 81 until the upper surface of the sealing portion 91 comes into close contact with the outer peripheral surface 82 of the slit peripheral portion. Then, since the valve portion 92 closes the vacuum wastewater pipe 8, even if the inside of the pipe in the wastewater tank 1 with a vacuum valve is set to atmospheric pressure, the vacuum on the vacuum sewer main side from the gate type partition valve 9 is maintained. At this time, since the upper surface of the sealing portion 91 is substantially airtightly adhered to the outer peripheral surface of the slit peripheral portion, air does not enter from the slit portion.

After this, the inside of the dirty valve 1 with a vacuum valve is maintained or parts are replaced. When finished,
Again, the valve portion 92 of the gate type sluice valve 9 is pulled up, turned over, and the insertion portion 93 is inserted into the slit 81. Then, the vacuum dirty water pipe 8 is opened, so that the dirty water basin 1 with a vacuum valve is normally operated. The gate type sluice valve 9 can be used to easily open and close the vacuum sewage pipe 8 without bending the substantially horizontal vacuum sewage pipe 8.

[0026]

As described above, the sewage box with a vacuum valve according to the present invention is provided with a slit substantially perpendicular to the side wall pipe axis of the vacuum sewage pipe which is laid in a substantially horizontal direction. A gate-type sluice valve that can be freely moved in and out is inserted in an almost airtight manner.By opening and closing this gate-type sluice valve, you can operate the sewage box with a vacuum valve and perform maintenance and parts replacement without any problems. be able to.

Since a valve can be provided in the horizontal vacuum waste water pipe in this way, the transfer efficiency does not drop and the soil cover of the outflow pipe does not become deep. Also, the installation work of the sewage box with a vacuum valve is simplified and the construction time is shortened. Further, when the gate type sluice valve is structured as in claim 2, it is convenient because the vacuum sewage pipe can be easily opened and closed while the vacuum is held by the gate type sluice valve. Further, if the gate type sluice valve has the structure as claimed in claim 3, it is safe because suspended matters do not accumulate in the slits and microorganisms do not propagate.

[Brief description of drawings]

FIG. 1 shows an embodiment of a sewage basin with a vacuum valve of the present invention, and is an explanatory view showing the sewage basin with a vacuum valve.

FIG. 2 is a perspective view of a gate type sluice valve used in the sewage box with a vacuum valve of FIG.

FIG. 3 shows a gate type sluice valve portion of the sewage box with a vacuum valve in FIG. 1, (a) is an explanatory view showing a state in which the vacuum sewage pipe is open, and (b) shows that the vacuum sewage pipe is closed. It is explanatory drawing which shows the state currently being carried out.

[Explanation of symbols]

 1 Sewage Mouth with Vacuum Valve 2 Vacuum Valve 4 Sewage Mouth Section 6 Detecting Tube 7 Sewage Intake Tube 8 Vacuum Sewage Tube 81 Slit 82 Peripheral Surface around Slit 9 Gate Partition Valve 91 Sealing Section 92 Valve Section 93 Inserting Section

Claims (3)

[Claims] 1. A sewage box for temporarily storing sewage, a detection pipe for detecting the amount of sewage collected in the sewage box, a sewage suction pipe for sucking sewage from the sewage box, the sewage suction pipe, and vacuum sewage. In a sewage box with a vacuum valve, which comprises a vacuum valve provided between the sewage pipe leading to the main pipe, and a slit in the side wall of the vacuum sewage pipe that is piped in a substantially horizontal direction in a direction substantially perpendicular to the pipe axis. Is provided, and a gate type sluice valve that can be freely moved in and out is inserted into this slit in a substantially airtight manner. 2. The gate type sluice valve according to claim 1, wherein an upper surface and a lower surface are substantially airtightly adhered to an outer peripheral surface of the slit peripheral portion of the vacuum wastewater pipe, and a sealing portion is provided on an upper surface of the sealing portion. The valve part is shaped so as to close the vacuum wastewater pipe when inserted into the slit, and is provided on the lower surface of the sealing part so that it does not block the vacuum wastewater passage when inserted into the slit. A sewage box with a vacuum valve, characterized in that it comprises an insertion part. 3. The vacuum according to claim 2, wherein the insertion portion has substantially the same shape as the space of the slit formed between the outer peripheral surface and the inner peripheral surface of the slit peripheral portion of the vacuum wastewater passage. Sewage box with valve.