JP2011202461A - Vacuum valve unit - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a vacuum valve unit which does not protrude from the ground with its buried depth shallow.SOLUTION: The vacuum valve unit U includes: a storage part 10 for storing drainage water; and a vacuum valve 20 for opening and closing a suction pipe 14 for sucking in the stored drainage water with vacuum pressure. In addition, the vacuum valve unit U includes a reservoir 1 having the storage part 10 and a valve receiving tank 2 for receiving the vacuum valve 20 respectively. Further, the vacuum valve unit U includes a bypass pipe 3 for connecting the reservoir 1 and the valve receiving tank 2.

Description

  The present invention relates to a vacuum valve unit.

  In recent years, the use of vacuum sewer systems that collect wastewater by vacuum pressure instead of natural flow sewer systems is increasing.

  In this vacuum sewer system, wastewater discharged from a residence or factory is stored in a vacuum valve unit, and when a predetermined amount is stored, it is taken into a vacuum sewer pipe as a gas-liquid mixed flow with air by vacuum pressure. Is done.

  By the way, in this vacuum valve unit, in order to prevent the vacuum valve from being submerged, in order to facilitate maintenance of the vacuum valve, it is common to arrange a storage part at the lower part of the vacuum valve unit and an upper part of the vacuum valve. Is.

  One feature of the vacuum sewer system is that it is a saw blade pipe with a lift part in the vacuum sewage pipe, which reduces the burial depth of the pipe line. The construction is improved by the shallowness.

  As described above, as a technique for reducing the embedment depth, for example, Patent Document 1 discloses a configuration in which a part of the storage case of the vacuum valve protrudes on the ground and an air intake portion is provided in the protruded part. Has been.

JP 2008-25240 A

  However, although the above-described configuration of Patent Document 1 can reduce the embedding depth, the portion protruding above the ground becomes an obstacle, and thus the space above the vacuum valve unit cannot be used effectively.

  Accordingly, an object of the present invention is to provide a vacuum valve unit that does not protrude to the ground while the embedding depth is reduced.

  In order to achieve the above object, a vacuum valve unit of the present invention is a vacuum valve unit comprising: a storage unit that stores drainage; and a vacuum valve that opens and closes a suction pipe that sucks the stored drainage by vacuum pressure. A storage tank having the storage section and a valve storage tank for storing the vacuum valve are separately provided.

  Moreover, it can be set as the structure provided with the bypass pipe which connects the said storage tank and the said valve storage tank.

  Further, the valve storage tank accommodates a control device that detects the water level of the storage unit and opens and closes the vacuum valve, and a water level detection pipe that detects the water level of the storage unit is connected to the control device through the bypass pipe In addition, the suction pipe may be connected to the vacuum valve through the bypass pipe.

  And it can be set as the structure by which the said suction pipe was inclined and attached to the said valve storage tank so that the outflow side may fall.

  Moreover, it can be set as the structure further equipped with the auxiliary | assistant suction pipe formed by branching the said suction pipe in the middle and arrange | positioning in the said valve storage tank.

  Furthermore, it can be set as the structure further equipped with the preliminary | backup storage tank different from the said storage tank, and the backup bypass pipe which connects the said storage tank or the said valve storage tank, and the said preliminary storage tank.

  The preliminary storage tank may be configured to accommodate a gate valve that is disposed between the vacuum valve and a vacuum pump that generates a vacuum pressure and blocks the vacuum pressure.

  As described above, the vacuum valve unit of the present invention is a vacuum valve unit that includes a storage unit that stores drainage and a vacuum valve that opens and closes a suction pipe that sucks the stored drainage by vacuum pressure. It has the storage tank which has, and the valve storage tank which accommodates a vacuum valve separately, It is characterized by the above-mentioned.

  Therefore, since the height of each of the storage tank and the valve storage tank can be formed low, the vacuum valve unit can be embedded in a shallow position as a whole without protruding to the ground.

  Further, by providing a bypass pipe that connects the storage tank and the valve storage tank, when the vacuum valve breaks down, the drainage can overflow into the valve storage tank through the bypass pipe.

  Furthermore, the valve storage tank contains a control device that opens and closes the vacuum valve. The water level detection pipe for detecting the water level in the reservoir is connected to the control device through the bypass pipe, and the suction pipe is connected to the vacuum valve through the bypass pipe. As a result, maintenance of the control device is facilitated, and the configuration can be simplified using the bypass pipe.

  And since the suction pipe is inclined and attached to the valve storage tank so that the outflow side is lowered, it is possible to obtain a certain amount of earth covering on the outflow side.

  Further, by further providing an auxiliary suction pipe formed by branching the suction pipe in the middle and disposed in the valve storage tank, the drainage can be performed even if drainage or dew condensation water overflowing in the valve storage tank is stored.

  Furthermore, the storage capacity when the waste water overflows from the storage tank is increased by providing a preliminary storage tank different from the storage tank and a backup bypass pipe that connects the storage tank or the valve storage tank and the backup storage tank. it can.

  And the preliminary storage tank accommodates the gate valve without providing a gate valve cover separately by accommodating the gate valve arranged between the vacuum valve and the vacuum pump for generating the vacuum pressure and blocking the vacuum pressure. it can.

It is sectional drawing explaining the structure of the vacuum valve unit of Example 1. FIG. It is explanatory drawing explaining the whole structure of a vacuum type sewer system. It is sectional drawing which expands and demonstrates the connection relation of a vacuum valve and a control apparatus. It is sectional drawing explaining the structure of the vacuum valve unit of Example 2. FIG. It is sectional drawing explaining the structure of the vacuum valve unit of Example 3. FIG.

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

  First, the whole structure of the vacuum-type sewer system S provided with the vacuum valve unit U of this invention is demonstrated using FIG.

  In the vacuum sewer system S of the present embodiment, as shown in FIG. 2, waste water discharged from a home 91 or a factory (not shown) flows into the vacuum valve unit U through a natural flow down pipe 92.

  Subsequently, the waste water that has flowed into the vacuum valve unit U is successively passed through the lower part 93 and the lift part 94 as vacuum sewage pipes by the vacuum pressure generated in the vacuum station 96 (pressure lower than the atmospheric pressure). It is conveyed as a gas-liquid mixed flow so as to pass.

  This vacuum pump type vacuum station 96 generates vacuum pressure by sucking air in a sealed tank 96b by a vacuum pump 96a, and keeps the inside of the vacuum sewage pipe in a vacuum state of about 0.4 atm. As a result, wastewater is sucked and collected from households.

  Thereafter, the waste water is sent to a sewage treatment plant or the like by a pressure pump 96c. The vacuum station 96 may be an ejector system instead of the above-described vacuum pump system in a small-scale facility or the like.

  The vacuum sewer system S is a system that forcibly collects and conveys wastewater by the differential pressure between the vacuum and atmospheric pressure, and the vacuum sewage pipe has a shallow burial depth, making it easy to avoid buried objects. The valve unit has features such as no power supply, no drainage leakage, no need to clean pipes, and less scum.

  And the vacuum valve unit U of a present Example is shown in FIG. 1. The storage tank 1 which has the storage part 10 which stores a waste_water | drain, and the vacuum valve 20 which opens and closes the suction pipe which sucks the stored waste_water | drain by a vacuum pressure A separate vacuum valve unit U separately including a valve storage tank 2 for storing the storage tank 1, a bypass pipe 3 connecting the storage tank 1 and the valve storage tank 2, and a vacuum valve and a vacuum pump for generating a vacuum pressure. And a gate valve cover 4 that covers the gate valve 40 that is disposed between the two and shuts off the vacuum pressure.

  Further, the storage tank 1 and the valve storage tank 2 formed separately are formed at approximately half the height of the conventional integrated vacuum valve unit, and are arranged apart in the horizontal direction (horizontal direction). Because it is installed, the depth from the ground to the bottom is almost half of the conventional depth.

  The storage tank 1 is formed in a bottomed cylindrical shape with a synthetic resin such as vinyl chloride, and is provided with a storage portion 10, a lid 11 that is installed at the same height as the ground and closes the upper portion, and stored drainage. And a water level detection pipe 12 that has a lower end inserted therein and detects fluctuations in the water level in the reservoir 10.

  Furthermore, although the storage tank 1 is formed to be approximately half the height of the conventional integrated vacuum valve unit as a whole, the volume of the storage unit 10 is formed in substantially the same manner as in the conventional case.

  In addition, in this storage tank 1, an inflow pipe 13 that is connected to the upper part of the storage unit 10 and allows wastewater to flow in, and a suction pipe 14 in which a tip is inserted into the wastewater stored in the storage unit 10 to take in the wastewater The emergency discharge pipe 15 that sucks waste water when the vacuum valve 20 fails and the vent pipe 16 that supplements air after drainage sucked into the vacuum sewage pipe by the vacuum pressure are connected.

  The valve storage tank 2 is formed in a bottomed cylindrical shape having the same diameter and the same height as the storage tank 1 by a synthetic resin such as vinyl chloride, and is installed at the same height as the vacuum valve 20 and the ground. A lid 21 that closes the top, a control device 22 that opens and closes the vacuum valve 20 by detecting the water level by the water level detection pipe 12, and an auxiliary suction pipe 23 that is formed by branching the suction pipe 14 in the middle. Yes.

  The vacuum valve 20 is controlled by the control device 22 so that when the water level rises, the valve is opened and vacuum pressure is introduced into the suction pipe 14 to suck in the drainage water in the reservoir 10, and when the water level falls, a certain amount is obtained. Since the vacuum valve 20 is closed after the air is sucked from the vent pipe 16, the waste water is stored in the storage unit 10 without taking in the waste water.

  Moreover, the control apparatus 22 detects the rise in the water level in the water level detection pipe 12 inserted into the drainage in the storage unit 10, and opens the vacuum valve 20 when the water level rises, and closes the vacuum valve 20 when the water level falls. Acts as follows.

  In addition, the suction pipe 14 is attached to the valve storage tank 2 so that the outflow side is lowered, and the vacuum valve 20 is attached to the inclined suction pipe 14 in an inclined manner. Therefore, the suction pipe 14 has a lower height on the outflow side (side closer to the vacuum pump 96a) than on the side flowing into the valve storage tank 2.

  Further, the bypass pipe 3 is formed in a cylindrical shape having a cross-sectional area larger than that of the emergency discharge pipe 15 by a synthetic resin such as vinyl chloride, and includes an upper side surface of the storage tank 1 and an upper side face of the valve storage tank 2. Connected.

  In addition, the bypass pipe 3 includes an emergency discharge pipe 15 connected from the storage tank 1 to the valve storage tank 2, a silicon tube 51 connecting the water level detection pipe 12 and the control device 22, and a breather pipe 17 (control device). The silicon tube 52 that connects the vacuum valve 20 and the silicon tube 53 that connects the breather tube 17 and the control device 22 are inserted into a sheath tube (FIG. 3). reference). On the other hand, the suction pipe 14 is not inserted into the bypass pipe 3 and is directly buried in the ground between the storage tank 1 and the valve storage tank 2.

  The gate valve cover 4 is formed in a cylindrical shape from a synthetic resin such as vinyl chloride, and is provided with a lid 41 that is installed at the same height as the ground and closes the upper portion, and is installed in the middle of the suction pipe 14. The upper part of the gate valve 40 is covered.

  In addition, as shown in the enlarged view of FIG. 3, the control device 22 includes a silicon tube 51 connected to the water level detection pipe 12 on the upper surface, and a silicon tube connected to the breather pipe 17 on one side to introduce atmospheric pressure. 53, a silicon tube 55 for introducing a vacuum pressure connected to the emergency discharge pipe 15 (or suction pipe 14) on the other side, and a vacuum pressure or an atmospheric pressure selectively connected to the upper surface of the vacuum valve 20 on the bottom surface A silicon tube 54 is connected.

  Furthermore, the vacuum valve 20 is connected to a silicon tube 54 connected to the bottom surface of the control device 22 on the upper surface and a silicon tube 52 connected to the breather tube 17 on the side surface to introduce atmospheric pressure.

  Next, the operation of the vacuum valve unit U of the present embodiment will be briefly described. First, when the water level of the waste water in the storage unit 10 rises and the air pressure in the water level detection pipe 12 increases to a predetermined pressure, The vacuum valve 20 is opened by the control device 22, and the vacuum pressure is transmitted to the suction pipe 14.

  If it does so, the waste_water | drain stored in the storage part 10 will be suck | inhaled by the suction pipe 14 so that it may be extruded by the differential pressure | voltage of atmospheric pressure and a vacuum pressure.

  Subsequently, when the water level in the storage unit 10 is lowered due to the drainage being discharged, air is sucked in from the vent pipe 16 through the suction pipe 14, and the vacuum valve 20 is closed by the spring force after a certain period of time. .

  In this way, by repeating the above-described operation of raising the water level in the storage unit 10 and lowering the water level due to the suction of the waste water, the waste water is conveyed to the vacuum station 96 as a gas-liquid mixed flow sequentially.

  Next, the effects of the vacuum valve unit U of this embodiment will be listed and described.

  (1) The vacuum valve unit U of the present embodiment is a vacuum valve unit U that includes a storage unit 10 that stores drainage, and a vacuum valve 20 that opens and closes a suction pipe 14 that sucks the stored drainage by vacuum pressure. The storage tank 1 having the storage unit 10 and the valve storage tank 2 that stores the vacuum valve 20 are separately provided.

  Therefore, since each height of the storage tank 1 and the valve storage tank 2 can be formed low, the vacuum valve unit U can be embedded in a shallow position as a whole without protruding to the ground.

  And if it does not protrude on the ground in this way, the space above the vacuum valve unit U can be used effectively. Furthermore, if it can be embedded in a shallow position, the workability is good because the vacuum valve unit U can be installed in a very shallow place even on a solid support ground that could not be embedded in the past.

  Furthermore, by arranging the storage tank 1 and the valve storage tank 2 that are separately divided side by side in the horizontal direction, not only can it cope with shallow embedding, but also the degree of freedom of the planar installation space is greatly improved.

  In addition, by embedding the vacuum valve unit U shallowly in this way, the head of the waste water in the vacuum valve unit U can be shortened, so that the vacuum pressure can be effectively utilized for pumping.

  (2) Further, by providing the bypass pipe 3 that connects the storage tank 1 and the valve storage tank 2, when the vacuum valve 20 fails and does not open, drainage is discharged through the bypass pipe 3 to the valve storage tank 2. It can overflow inside.

  In other words, if the storage tank 1 and the valve storage tank 2 are connected by the bypass pipe 3, the drainage water that has overflowed and overflowed the water level of the storage tank 1 can flow into the valve storage tank 2 and be stored.

  In addition, the valve storage tank 2 accommodates a control device 22 that detects the water level of the storage unit 10 to open and close the vacuum valve 20, and the water level detection pipe 12 that detects the water level of the storage unit 10 passes through the bypass pipe 3. By being connected to 22, the maintenance of the control device 22 is facilitated, and the configuration can be simplified using the bypass pipe 3.

  (3) Since the suction pipe 14 is attached to the valve storage tank 2 so that the outflow side is lowered, a soil covering of a certain level or more can be obtained on the outflow side.

  If it does so, the load which acts on a pipe line by vehicle weight etc. can be reduced because the earth covering becomes deep.

  Furthermore, if a certain level or more of the earth covering can be obtained on the outflow side, even the gate valve 40 having a large height dimension can be buried underground.

  In addition, if the vacuum valve 20 is further inclined and attached to the suction pipe 14, the vacuum valve 20 is installed at an angle close to the vertical direction, so that the vacuum valve 20 can be easily attached and detached during maintenance or the like. Become.

  (4) Further, the auxiliary suction pipe 23 that is formed by branching the suction pipe 14 in the middle and disposed in the valve storage tank 2 further includes drainage or condensed water overflowing in the valve storage tank 2. Even if stored, it can be drained.

  The auxiliary suction pipe 23 is connected to the side closer to the reservoir 10 than the vacuum valve 20 so that the drainage or dew condensation water in the valve storage tank 2 is sucked only when the vacuum valve 20 is open. become.

  Hereinafter, the vacuum valve unit U1 including the bypass pipe 3A having a form different from that of the above-described embodiment will be described with reference to FIG. The description of the same or equivalent parts as described in the above embodiment will be given with the same reference numerals.

  First, the configuration will be described. As shown in FIG. 4, the vacuum valve unit U <b> 1 of the present embodiment separately includes a storage tank 1 having a storage unit 10 and a valve storage tank 2 for storing a vacuum valve 20. This is a separation type vacuum valve unit U1.

  The valve storage tank 2 accommodates a vacuum valve 20, a lid 21, a control device 22 that opens and closes the vacuum valve 20 by detecting the water level by the water level detection pipe 12, and an auxiliary suction pipe 23.

  In addition, the vacuum valve unit U1 of the present embodiment is arranged between the bypass pipe 3A connecting the storage tank 1 and the valve storage tank 2, and the vacuum valve and the vacuum pump that generates vacuum pressure, thereby blocking the vacuum pressure. And a gate valve cover 4 that covers the gate valve 40.

  The bypass pipe 3A of this embodiment is formed in a cylindrical shape having a cross-sectional area larger than the total cross-sectional area of the suction pipe 14 and the emergency discharge pipe 15 by a synthetic resin such as vinyl chloride. And the upper part of the side surface of the valve storage tank 2 are connected.

  The bypass pipe 3A includes an emergency discharge pipe 15, a silicon tube 51 that connects the water level detection pipe 12 and the control device 22, a silicon tube 52 that connects the breather pipe 17 and the vacuum valve 20, and a breather pipe 17. In addition to the silicon tube 53 that connects the control device 22, the suction pipe 14 that sucks in the wastewater stored in the storage unit 10 is also inserted.

  Next, operational effects will be described.

  (1) The vacuum valve unit U1 of the present embodiment includes a bypass pipe 3A that connects the storage tank 1 and the valve storage tank 2 so that the bypass pipe can be used when the vacuum valve 20 fails and does not open. The waste water can be overflowed into the valve storage tank 2 through 3A.

  (2) Further, a control device 22 that opens and closes the vacuum valve 20 is accommodated in the valve storage tank 2, and the water level detection pipe 12 that detects the water level of the reservoir 10 is connected to the control device 22 through the bypass pipe 3A. By connecting the suction pipe 14 to the vacuum valve 20 through the bypass pipe 3A, the maintenance of the control device 22 and the suction pipe 14 is facilitated, and the configuration can be simplified using the bypass pipe 3A.

  In addition, as in the present embodiment, the bypass pipe 3A has a sufficient area with respect to the cross-sectional areas of the suction pipe 14 and the emergency discharge pipe 15, so that the drainage in the storage tank 1 can be smoothly drained through the surplus area. The valve storage tank 2 can be overflowed.

  In addition, since it is as substantially the same as the said Example about another structure and an effect, description is abbreviate | omitted.

  Hereinafter, a vacuum valve unit U2 having a different form from the above embodiment will be described with reference to FIG. The description of the same or equivalent parts as described in the above embodiment will be given with the same reference numerals.

  First, the configuration will be described. As shown in FIG. 5, the vacuum valve unit U <b> 2 of the present embodiment separately includes a storage tank 1 having a storage unit 10 and a valve storage tank 2 for storing a vacuum valve 20. This is a separation type vacuum valve unit U2.

  Furthermore, the vacuum valve unit U2 of this embodiment includes a bypass pipe 3 that connects the storage tank 1 and the valve storage tank 2, a preliminary storage tank 4A that is different from the storage tank 1, a valve storage tank 2, and the preliminary storage tank. And a spare bypass pipe 3B for connecting 4A.

  The preliminary storage tank 4A is formed of a synthetic resin such as vinyl chloride in a bottomed cylindrical shape having the same diameter and the same height as the storage tank 1, and a lid 41 is installed at the top, and a vacuum valve is provided inside. A gate valve 40 is housed between 20 and a vacuum pump 96a for generating a vacuum pressure, and shuts off the vacuum pressure.

  Further, the spare bypass pipe 3B is formed in a cylindrical shape by a synthetic resin such as vinyl chloride, and connects the lower side surface of the valve storage tank 2 and the lower side face of the preliminary storage tank 4A. The spare bypass pipe 3B is not limited to the one connected to the valve storage tank 2, and may be directly connected to the storage tank 1.

  Next, operational effects will be described.

  (1) The vacuum valve unit U2 of the present embodiment includes a preliminary storage tank 4A that is different from the storage tank 1, a preliminary bypass pipe 3B that connects the valve storage tank 2 or the storage tank 1 and the preliminary storage tank 4A, Furthermore, the storage capacity when the waste water overflows from the storage tank 1 can be increased.

  In addition, by providing the preliminary storage tank 4A in this way, it is possible to increase the standby storage capacity when overflowing while maintaining the opening / closing frequency of the vacuum valve 20 without changing the volume of the normal storage unit 10.

  (2) In addition, the preliminary storage tank 4A accommodates a gate valve 40 that is disposed between the vacuum valve 20 and the vacuum pump 96a that generates vacuum pressure, and shuts off the vacuum pressure. The gate valve 40 can be accommodated without separately providing examples 1 and 2).

  In addition, since it is as substantially the same as the said Example about another structure and an effect, description is abbreviate | omitted.

  The embodiment of the present invention has been described in detail with reference to the drawings, but the specific configuration is not limited to this embodiment, and design changes that do not depart from the gist of the present invention are not limited to the present invention. included.

  For example, in the above-described embodiment, the case where various pipes are inserted into the bypass pipes 3 and 3A has been described. However, the present invention is not limited to this. May be provided.

  Moreover, in the said Example 3, although the case where the gate valve 40 was arrange | positioned in the reserve tank 4A was demonstrated, it is not limited to this, Even if the gate valve 40 is not installed in the reserve tank 4A. Good.

  Furthermore, although the said Example demonstrated the case where the diameter and height of the storage tank 1 and the valve storage tank 2 were substantially the same, it is not limited to this, The diameter of the storage tank 1 and the valve storage tank 2 The height may vary.

S Vacuum sewer system U, U1, U2 Vacuum valve unit 1 Reservoir 10 Reservoir 12 Water level detection pipe 14 Suction pipe 2 Valve storage tank 20 Vacuum valve 22 Control device 23 Auxiliary suction pipe 3, 3A, 3B Bypass pipe 4 Gate valve Cover 4A Preliminary storage tank 40 Gate valve

Claims (7)

A vacuum valve unit comprising: a storage unit that stores wastewater; and a vacuum valve that opens and closes a suction pipe that sucks the stored wastewater by vacuum pressure,
A vacuum valve unit comprising a storage tank having the storage section and a valve storage tank for storing the vacuum valve separately.   The vacuum valve unit according to claim 1, further comprising a bypass pipe connecting the storage tank and the valve storage tank.   The valve storage tank accommodates a control device that detects the water level of the storage unit and opens and closes the vacuum valve, and a water level detection pipe that detects the water level of the storage unit is connected to the control device through the bypass pipe. The vacuum valve unit according to claim 2, wherein the suction pipe is connected to the vacuum valve through the bypass pipe.   The vacuum valve unit according to any one of claims 1 to 3, wherein the suction pipe is attached to the valve storage tank so that the outflow side is lowered.   The vacuum valve unit according to any one of claims 1 to 4, further comprising an auxiliary suction pipe formed by branching the suction pipe in the middle and disposed in the valve storage tank.   6. The storage tank according to claim 1, further comprising: a preliminary storage tank different from the storage tank; and a preliminary bypass pipe connecting the storage tank or the valve storage tank and the preliminary storage tank. The vacuum valve unit according to claim 1.   The vacuum valve unit according to claim 6, wherein the preliminary storage tank accommodates a gate valve that is disposed between the vacuum valve and a vacuum pump that generates a vacuum pressure, and shuts off the vacuum pressure. .

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