JP4972031B2 - Vacuum valve device mounting structure and sewage with vacuum valve - Google Patents

Description

  The present invention relates to a sewage system with a vacuum valve used in a vacuum sewer system, and a vacuum valve device mounting structure in which a vacuum valve device is attached to a sewage main body.

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

  In this vacuum sewer system, sewage discharged from a residence or factory is stored in a sewage sewage tank with a vacuum valve. Are transported.

  By the way, the sewage water with a vacuum valve used in this vacuum sewer system is often installed in a narrow area such as a detached site. In such a case, if a small-diameter sewage tank with a vacuum valve installed in a narrow area is used, there is a problem that it is difficult to mount or repair the vacuum valve.

  Therefore, for example, in Patent Document 1, a vacuum valve is detachably attached from the main body, and a suction side connection portion of the vacuum valve is bent vertically downward, so that a suction pipe and a rubber ring receiving port attached to the main body are further provided. There is disclosed a sewage tank with a vacuum valve that can be easily attached and removed even when the sewage with a vacuum valve has a relatively small diameter by being connected by joining.

Further, in Patent Document 2, the upper part of the main body is configured as an annular body, and the vacuum valve is attached to the frame supported by the annular body, so that the work for assembling the vacuum valve on site is not required. Parts are disclosed.
JP 2004-52412 A Japanese Patent No. 2858588

  However, in the configuration of Patent Document 1 described above, it is difficult to remove the detection tube and the suction tube, although the vacuum valve can be removed.

  Moreover, in the structure of above-mentioned patent document 2, since the flame | frame to which a vacuum valve is attached is being fixed to the annular body, the vacuum valve could not be removed.

  SUMMARY OF THE INVENTION Accordingly, an object of the present invention is to provide a vacuum valve device mounting structure in which a set of vacuum valve devices can be easily attached and detached, and a sewage tank with a vacuum valve provided with the vacuum valve device mounting structure. .

  In order to achieve the above object, the vacuum valve device mounting structure of the present invention includes a vacuum valve, a detection pipe for detecting the water level in the sewage main body, and a suction pipe for sucking sewage into the vacuum sewage pipe. A vacuum valve device mounting structure for attaching a vacuum valve device to a sewage main body, wherein the detection pipe and the suction pipe are integrally installed on a gantry on which the vacuum valve is installed, and the gantry includes the sewage It is characterized by being detachably attached to the main body.

  Further, a support provided with a positioning pin, a long hole, and a wing screw that is slidably installed in the long hole is attached in the waste water main body, and the positioning pin has the positioning pin A positioning hole is provided at a position corresponding to the long hole, a long notch is provided at a position corresponding to the long hole, the positioning pin is inserted into the positioning hole, and the thumbscrew is slid into the long notch. Thus, the frame can be fastened to the support.

  Furthermore, it is preferable that the vacuum valve controller for operating the vacuum valve is detachably attached to the wastewater main body.

  A bracket is attached to the vacuum valve controller, and an insertion pin is provided on one of the bracket or the sewage main body, and an insertion hole is provided on the other. It can be set as the structure inserted in a penetration hole.

  In addition, the vacuum valve is provided with a connection port having an O-ring fitted to the end surface, and a flange surface is provided on the outflow pipe from the sewage main body to the vacuum sewage pipe. It is preferable that the end face and the flange face are joined and fastened by a ferrule joint.

  Furthermore, the sewage basin with a vacuum valve of the present invention is characterized by comprising the above-described vacuum valve device mounting structure.

  Thus, the vacuum valve device mounting structure of the present invention is a vacuum valve device mounting structure for mounting a vacuum valve device having a vacuum valve, a detection tube, and a suction tube to a sewage main body, and the vacuum valve is installed. The detection tube and the suction tube are integrally installed on the mount, and the mount is detachably attached to the main body of the sewage.

  Therefore, the vacuum valve device set can be easily attached and detached by removing the vacuum valve device together with the gantry from the main body.

  In addition, a support tool provided with positioning pins, long holes, and thumbscrews is mounted in the main body of the sewage, and the positioning holes and long notches are provided in the mount, and positioning pins are inserted into the positioning holes. The thumbscrew is slid into the long notch to tighten the frame to the support.

  Therefore, the vacuum valve device can be easily attached and detached by removing the vacuum valve device together with the gantry from the main body with a simple configuration.

  Further, the vacuum valve controller for operating the vacuum valve is detachably attached to the sewage body so that the vacuum valve controller can be easily attached and detached.

  An insertion pin is provided on one of the bracket of the vacuum valve controller or the sewage main body, and an insertion hole is provided on the other, so that the insertion pin is inserted into the insertion hole. Depending on the configuration, the vacuum valve controller can be easily attached and detached.

  In addition, a connection port having an O-ring fitted to the end surface is attached to the vacuum valve, and a flange surface is provided to the outflow pipe, and the end surface of the connection port and the flange surface are joined and fastened by a ferrule joint. Thus, the vacuum valve and the outflow pipe can be easily separated.

  Furthermore, the sewage water with a vacuum valve according to the present invention has a vacuum valve device mounting structure according to any one of the above, thereby reducing the time required for attaching and detaching the vacuum valve device and having good maintainability. It will become.

  The best mode for carrying out the present invention will be described below with reference to the drawings.

  First, the whole structure of the vacuum-type sewer system S provided with the waste-water-mass U with a vacuum valve of this invention using FIG. 2 is demonstrated.

  In the vacuum sewer system S of the present invention, as shown in FIG. 2, the waste water discharged from the home or factory flows into the sewage water with a vacuum valve U through the natural flow down pipe 92.

  Subsequently, the sewage flowing into the sewage mass U with the vacuum valve is caused to flow down as a vacuum sewage pipe by the vacuum pressure (pressure lower than the atmospheric pressure) generated by the sewage circulation pump 96a of the vacuum station 96. 93 and the lift part 94 are conveyed as a gas-liquid mixed flow so as to pass sequentially.

  Thus, the sewage that has reached the vacuum station 96 is pumped to the sewage treatment facility by the pump pump 96b.

  The vacuum station 96 sucks sewage from each household by supplying the sewage in the receiving tank to the ejector by the sewage circulation pump 96a and maintaining the inside of the vacuum sewage pipe at about 0.4 atm (vacuum state). Collecting.

  The vacuum pressure generator for generating the vacuum is not limited to an ejector type using an ejector, and a vacuum pump type using a vacuum pump can also be applied.

  Moreover, as the flow-down part 93 and the lift part 94 as a vacuum sewage pipe line, the polyethylene pipe for sewers which has flexibility, a stretching property, and abrasion resistance, a hard vinyl chloride pipe, etc. are used.

  The above-mentioned vacuum sewer system S is a system that forcibly collects and conveys sewage by the differential pressure between vacuum and atmospheric pressure, and the embedding depth of the vacuum sewage pipe is shallow, and it is easy to avoid buried objects. Sewage with vacuum valve has features such as no power supply, no leakage of sewage, no need to clean pipes, and less scum.

  3 and 4, the sewage sewage basin U with the vacuum valve according to the present embodiment is provided in the sewage basin 2 main body 20 as a vacuum valve device and the sewage basin 2 main body 20 as shown in FIGS. And a suction pipe 13 for sucking sewage into the vacuum sewage pipe, and a vacuum valve controller 14 for controlling the operation of the vacuum valve 11.

  Further, a bypass pipe 86 is branched from the outflow pipe 17 side of the vacuum valve 11, and a vacuum hose 81 that transmits vacuum pressure to the vacuum valve controller 14 is connected near the base of the bypass pipe 86. . This bypass pipe 86 prevents the sewage from overflowing by opening the valve 84 in the event that the vacuum valve 11 does not open.

  In addition, the detection tube 12 and the vacuum valve controller 14 are connected by a detection hose 82, and the vacuum valve controller 14 and the vacuum valve 11 are connected by a control hose 83.

  The sewage basin 2 is provided for receiving and temporarily storing sewage discharged from a home or the like, and includes a cylindrical main body 20 and a support 21 disposed inside the upper part of the main body 20. And an openable / closable lid 22 that closes the upper portion of the main body 20 and a bottom 23 that closes the lower portion of the main body 20.

  The support 21 is formed in a thick plate shape, and a pair of insertion holes 21a and 21a for inserting the insertion pins 15a included in the bracket 15 of the vacuum valve controller 14 are provided on the upper surface. (See FIG. 6).

  In addition, an inflow pipe 19 for taking in sewage from a home or the like is inserted into the sewage basin 2 slightly below the main body 20, and an outflow for discharging the sewage into the vacuum sewage pipe slightly above the main body 20. A tube 17 is inserted.

  Further, the vacuum valve 11 is a valve body whose opening and closing is controlled by the vacuum pressure transmitted via the vacuum valve controller 14, and has a small diameter of 50 mm.

  The vacuum valve 11 operates as follows.

  That is, when the level of sewage in the body 20 of the sewage masu 2 rises and the air pressure in the detection tube 12 increases to a predetermined pressure, the vacuum valve 11 is opened by the vacuum valve controller 14 and the vacuum pressure is sucked. It is transmitted to the tube 13.

  Then, the sewage stored in the main body 20 is sucked into the suction pipe 13 so as to be pushed out by the differential pressure between the atmospheric pressure and the vacuum pressure.

  Subsequently, when dirty water is discharged through the outflow pipe 17 and the water level in the main body 20 is lowered, air is sucked in through the suction pipe 13, and the vacuum valve 11 is closed by a spring force after a predetermined time.

  In this way, by repeating the above-described operation of raising the water level in the main body 20 and lowering the water level due to sewage suction, the sewage is conveyed to the vacuum station 96 sequentially.

  As shown in FIG. 5, the vacuum port 11 of the present embodiment has a connection port 16 fitted on the outflow pipe 17 side, and a flange-like flange surface 17 a is formed at the end of the outflow pipe 17. The end face of the connection port 16 and the flange face 17a are brought together and fastened by a ferrule joint 18.

  The connection port 16 is formed in a thick cylindrical shape with a flexible resin or the like and bonded to the vacuum valve 11. The circular groove provided on the end surface facing the outflow pipe 17 has an O-ring. 16a is fitted.

  Therefore, when attaching or detaching the vacuum valve device, the vacuum valve device can be disconnected from the vacuum sewer system S by loosening the thumbscrew 18a of the ferrule joint 18 by hand and removing the ferrule joint 18. Yes.

  Further, as shown in FIGS. 3, 4, and 8, the detection tube 12 is integrally installed in the gantry 3 by being fitted into the circular arc cutout 35 and tightened with the clamp band 36, and the capacity of the main body 20 is determined. The height of the lower end is adjusted based on the vacuum pressure.

  Further, as shown in FIGS. 1 and 3, the suction pipe 13 is bonded and fixed through an elbow continuous to the vacuum valve 11, and the lower part of the main body 20 of the dirty water 2 so that the dirty water can be sucked in. It extends to.

  Then, as shown in FIG. 6, the vacuum valve controller 14 of the present embodiment is installed on a bracket 15 formed by bending a metal plate, and the body 20 of the sewage 2 through the bracket 15. Is detachably attached.

  The bracket 15 is formed in an L shape by bending a metal or the like. A vacuum valve controller 14 is installed on the L-shaped flat plate portion, and the upper edge of the L-shaped standing plate portion is further bent. The insertion pins 15a and 15a are arranged so as to protrude from the lower surface.

  Therefore, the vacuum valve controller 14 is engaged with the main body 20 of the dirty water 2 by inserting the insertion pins 15a and 15a into the insertion holes 21a and 21a of the support body 21 provided in the main body 20 of the dirty water 2. Being removable.

  And in the attachment structure C of the vacuum valve apparatus of this Embodiment, as shown in FIG. 7, the detection pipe | tube 12 and the suction pipe | tube 13 are integrally installed in the mount frame 3 in which the vacuum valve 11 is installed, The gantry 3 is detachably attached to stays 4 and 4 as support members provided on the main body 20 of the sewage masu 2.

  The gantry 3 is formed in a plate shape with metal, and as shown in FIG. 8, positioning holes inserted into the positioning pins 41 and 41 of the stays 4 and 4 in the deformed semicircular body plate 30. 31, 31, long notches 32, 32 overlaid with the long holes 42, 42 of the stays 4, 4 and sliding the thumbscrews 43, 43, half bands 33, 34 for fixing the vacuum valve 11, and detection Arc cutouts 35, 35 for holding the tube 12, a clamp band 36 for fastening and fixing the detection tube 12, corner cutouts 37, 37 for avoiding the thumbscrews 43, 43 when overlapping the stays 4,4, Is provided.

  The positioning holes 31 are provided one by one as circular through holes in the vicinity of both ends in the diameter direction of the main body plate 30, and are provided corresponding to the positions of the positioning pins 41 of the stay 4.

  Similarly, one long notch 32 is provided as a notch of a predetermined length connected to the corner notch 37 in the vicinity of both ends in the diameter direction of the main body plate 30, and corresponds to the position of the long hole 42 of the stay 4. Is provided.

  Therefore, the long notch 32 is formed shorter than the long hole 42 by a length corresponding to the corner notch 37, and is attached to the stays 4, 4 when the mount 3 is placed on the stays 4, 4. The wing screws 43, 43 can be avoided by sliding them to the corner notches 37.

  Further, as shown in FIG. 8, the stays 4, 4 as support tools are formed in a plate shape bent in an L shape by metal, and are positioned on the main body plate 40 that is an L-shaped flat plate portion. 41 and a long hole 42 are provided, and an attachment plate 44 which is an L-shaped standing plate portion is fixed to the main body 20 of the sewage 2 by bolts 45.

  Further, the long hole 42 is oriented so that the positioning pin 41 is positioned on an extension line in the longitudinal direction so that the rotation around the positioning pin 41 can be restricted.

  The long hole 42 is provided with a wing screw 43 having a diameter slightly narrower than the hole width so as to be slidable. A nut 43b is welded on the back side to prevent the fall, and a pedestal 3 on the front side. A washer 43a for tightening the stay 4 is inserted (see FIG. 9).

  Therefore, when attaching the gantry 3 to the stays 4 and 4, as shown in FIGS. 9 (a) and 9 (b), the thumbscrew 43 is previously shifted away from the positioning pin 41 (the position of the corner notch 37). The gantry 3 is superposed on the stay 4. If it does so, it will be in the state where the long notches 32 and 32 provided in the mount frame 3 and the long holes 42 and 42 provided in the stays 4 and 4 overlap.

  Next, when the gantry 3 is superimposed on the stays 4 and 4, the positioning pin 41 is inserted into the positioning hole 31 to determine the position, and the retracted thumbscrew 43 is moved in a direction approaching the positioning pin 41. Both are fixed by tightening the thumbscrew 43 by hand.

  Conversely, when removing the gantry 3 from the stays 4, 4, the thumbscrew 43 located near the positioning pin 41 is loosened by hand and shifted away from the positioning pin 41.

  Then, after the wing screw 43 is shifted to a position corresponding to the corner notch 37 of the gantry 3, the gantry 3 is removed from the stays 4, 4 by pulling out the positioning pin 41 from the positioning hole 31.

  Next, the operation of the vacuum valve device mounting structure C of the present embodiment will be described.

  As described above, the attachment structure C of the vacuum valve device of the present embodiment is the attachment of the vacuum valve device that attaches the vacuum valve device having the vacuum valve 11, the detection tube 12, and the suction tube 13 to the main body 20 of the sewage water 2 In the structure C, the detection tube 12 and the suction tube 13 are integrally installed on the gantry 3 on which the vacuum valve 11 is installed, and the gantry 3 is detachably attached to the main body 20 of the dirty water 2.

  In other words, the gantry 3 on which the vacuum valve device set (excluding the vacuum valve controller 14) is installed and the stays 4 and 4 as the support members are fixed to each other by attachment / detachment means formed so as to be easily attached / detached. Yes.

  Therefore, the vacuum valve device set can be easily attached and detached by removing the vacuum valve device together with the gantry 3 from the main body 20 of the dirty water 2.

  That is, since not only the vacuum valve 11 but also the detection pipe 12 and the suction pipe 13 are installed on the gantry 3, the set of vacuum valve devices can be attached and detached while they are installed. The process of separating can be omitted.

  In addition, if the amount of work in the main body 20 of the sewage masu 2 is reduced in this way, the possibility of dropping tools in the sewage masu 2 is reduced, and the work becomes difficult and difficult to work. Nothing will happen.

  Further, even when the tools are dropped, the set of vacuum valve devices can be removed together with the gantry 3, so that there is a large space in the main body 20, so that the dropped tools can be scooped with a net or the like.

  And since the detection pipe | tube 12 and the suction pipe 13 can be taken out with the mount frame 3, these position adjustment becomes easy.

  Moreover, the vacuum valve controller 14 which operates the vacuum valve 11 can be attached or detached easily by attaching to the main body 20 of sewage water 2 so that attachment or detachment is possible.

  In addition, if the vacuum valve controller 14 can be easily attached and detached as described above, the entire main device including the device installed on the gantry 3 can be removed to the ground, and the vacuum is easier to maintain. It becomes the attachment structure C of a valve apparatus.

  Specifically, conventionally, the replacement work of the vacuum valve 11 is mainly performed by opening a manhole, removing the vacuum valve controller 14, separating the outflow pipe 17, removing the frame 3, replacing the vacuum valve 11, and the frame 3. , Attachment adjustment of the detection tube 12, attachment of the outflow tube 17, fixation of the vacuum valve 11, and attachment of the vacuum valve controller 14.

  Among these, by making the mount 3 and the vacuum valve controller 14 detachable as described above, in particular, the time required for removing and attaching the vacuum valve controller 14, removing and attaching the mount 3, and mounting and adjusting the detection tube 12. Can be reduced.

  Further, in the main body 20 of the sewage basin 2, stays 4 and 4 as support tools provided with positioning pins 41 and 41, long holes 42 and 42 and wing screws 43 and 43 are attached. The positioning holes 31 and 31 and the long notches 32 and 32 are provided, and the positioning pins 41 and 41 are inserted into the positioning holes 31 and 31, and the thumb screws 43 and 43 are slid into the long notches 32 and 32, respectively. 3 is fastened to stays 4 and 4 as support tools.

  Accordingly, the vacuum valve device can be easily attached and detached by removing the vacuum valve device together with the gantry 3 from the main body 20 of the dirty water 2 with a simple configuration.

  That is, the attaching / detaching means separately includes the positioning means having the positioning pin 41 and the positioning hole 31, and the fixing means (fastening means) having the long hole 42, the long notch 32, and the thumbscrew 43. The construction of the means can be simplified and work can be performed separately.

  In addition, since the positioning means and the fixing means are attached to the gantry 3 and the stays 4 and 4, the work can be performed without using a component that may drop, such as a bolt.

  Furthermore, when removing the gantry 3, the gantry 3 is placed on the stays 4, 4 even if the thumbscrews 43, 43 are shifted away from the positioning pins 41, 41. There is no need to keep holding the gantry 3 by hand.

  A bracket 15 having insertion pins 15a, 15a is attached to the vacuum valve controller 14, and the insertion pins 15a, 15a are inserted into insertion holes 21a, 21a provided in the support body 21 of the body 20 of the sewage. By being inserted, the vacuum valve controller 14 can be easily attached and detached with a simple configuration.

  In addition, if the vacuum valve controller 14 can be removed together with the bracket 15 in this way, the bracket 15 positioned above does not become an obstacle when the mount 3 is removed from the stays 4 and 4.

  Further, the vacuum valve 11 is provided with a connection port 16 having an end surface fitted with an O-ring 16a, and the outflow pipe 17 is provided with a flange surface 17a to join the end surface of the connection port 16 and the flange surface 17a. Thus, the vacuum valve 11 and the outflow pipe 17 can be easily separated by being fastened by the ferrule joint 18.

  In addition, the ferrule joint 18 can be easily removed by loosening the thumbscrew 18a with the other hand while being held with one hand, and thus has a joining structure that suppresses the possibility of parts falling.

  Further, the sewage basin U with a vacuum valve according to the present embodiment is provided with the mounting structure C for the vacuum valve device according to any one of the above, thereby reducing the time required for attaching and detaching the vacuum valve device and having good maintainability. Sewage with vacuum valve becomes more and more U.

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

  For example, in the above-described embodiment, the case where the vacuum valve controller 14 is detachably mounted has been described. However, the present invention is not limited to this, and the vacuum valve controller 14 is not detachable if there is no problem in the work of removing the gantry 3. Even a thing (structure attached to the upper end part of the main body of the vacuum valve 11) is applicable.

  In the above embodiment, the case where the stay 4 as the support includes the positioning pin 41, the long hole 42, and the thumb screw 43, and the gantry 3 includes the positioning hole 31 and the long notch 32 has been described. The structure is not limited to the above, and any structure may be used as long as it is detachable.

  Furthermore, although the said embodiment demonstrated the case where the vacuum valve controller 14 was detachably attached to the main body 20 of sewage water 2 via the bracket 15 which has insertion pin 15a, 15a, it is limited to this Instead, any structure may be used as long as it is detachable.

  And in the said embodiment, although the case where the both ends of the mount frame 3 were supported by the stays 4 and 4 as a support was demonstrated, it is not limited to this, You may support in one place, Three or more places may be supported.

  In the above embodiment, the insertion pin 15 a is provided in the bracket 15 of the vacuum valve controller 14, and the insertion hole 21 a is provided in the support 21 of the body 20 of the sewage water 2. An insertion hole may be provided, and an insertion pin may be provided on the support 21.

It is a perspective view explaining the structure of the attachment structure of the vacuum valve apparatus of the best embodiment of this invention. It is explanatory drawing explaining the whole structure of a vacuum type sewer system. It is sectional drawing which looked at the attachment structure of the vacuum valve apparatus of the best embodiment of this invention from the side. It is sectional drawing which looked at the attachment structure of the vacuum valve apparatus of the best embodiment of this invention from the top. It is a perspective view explaining the connection structure of a connection port and an outflow port. It is a perspective view explaining the attachment structure of a vacuum valve controller. It is sectional drawing seen from the side explaining the attachment method of a vacuum valve apparatus. It is a top view explaining the structure of a mount frame and a bracket. It is explanatory drawing explaining the structure of the attachment structure of the vacuum valve apparatus of the best embodiment of this invention in detail. (A) is a top view, (b) is a side view.

Explanation of symbols

U Dirty water with vacuum valve C Vacuum valve device mounting structure 11 Vacuum valve 12 Detector pipe 13 Suction pipe 14 Vacuum valve controller 15 Bracket 15a Insertion pin 16 Connection port 16a O-ring 17 Outflow pipe 17a Flange surface 18 Ferrule fitting 2 Sewage 20 Main body 21 Support body 21a Insert hole 3 Base 31 Positioning hole 32 Long notch 4 Stay (support)
41 Positioning Pin 42 Long Hole 43 Wing Screw

Claims (6)

A vacuum valve device mounting structure for mounting a vacuum valve device having a vacuum valve, a detection tube for detecting the water level in the sewage main body, and a suction pipe for sucking sewage into the vacuum sewage pipe to the sewage main body. ,
The mounting structure of the vacuum valve device, wherein the detection pipe and the suction pipe are integrally installed on a base on which the vacuum valve is installed, and the base is detachably attached to the sewage main body. A support provided with a positioning pin, a long hole, and a wing screw that is slidably installed in the long hole is attached to the inside of the waste water main body,
The mount is provided with a positioning hole at a position corresponding to the positioning pin, and a long notch is provided at a position corresponding to the long hole,
2. The mounting structure for a vacuum valve device according to claim 1, wherein the positioning pin is inserted into the positioning hole, and the thumbscrew is slid into the long notch to fasten the mount to the support.   The vacuum valve device mounting structure according to claim 1 or 2, wherein a vacuum valve controller for operating the vacuum valve is detachably mounted on the sewage main body. A bracket is attached to the vacuum valve controller, and an insertion pin is provided on one side of the bracket or the sewage body, and an insertion hole is provided on the other side.
The vacuum valve device mounting structure according to claim 3, wherein the insertion pin is inserted into the insertion hole. The vacuum valve is provided with a connection port fitted with an O-ring on the end face, and a flange surface is provided on the outflow pipe from the dirty water main body to the vacuum sewage pipe,
The attachment structure of the vacuum valve device according to any one of claims 1 to 4, wherein an end surface of the connection port and the flange surface are joined and fastened by a ferrule joint.   A vacuum valve-equipped sewage comprising the vacuum valve device mounting structure according to any one of claims 1 to 5.

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