JP6509647B2 - Installation structure of injection pressure type water level gauge - Google Patents

Description

  The present invention relates to the installation structure of a pouring pressure type water level gauge used as an apparatus for measuring the water level of treated water or the like in each treatment tank in a sewerage facility.

  Conventionally, in each treatment facility in a sewerage facility, operation control of the pump facility is performed by constantly monitoring the water level of the inflowing sewage, treated water and the like. And although the injection pressure type water level gauge is used for this water level measurement, this water level gauge has high measurement accuracy and is considered to be indispensable in the sewerage facilities, and many such as sedimentation basins, pump wells, etc. It has been used in facilities. In addition, it is necessary to check the water level gauge periodically, and at that time, it is necessary to work to pull up the detector part dropped in the water.

  As shown in FIG. 7, since the injection pressure type water level gauge 50 is installed so as to hang from above the water surface, it is called a breakwater tube fixed in the treatment tank 52 so as not to be affected by the water flow. The pressure drop type water level gauge 50 is accommodated in the protective pipe 54. However, in the sewage pump well (treatment tank 52), a large amount of oil and fat floats on the water surface, so by repeatedly stopping the operation of the sewage pump, the protection pipe 54 is protected by repeating the rise and fall of the water level. Fats and oils infiltrate through the air vents 56 provided in the pipe 54, which become scum 58 which is a clay-like mass and block the air vents 56.

  In addition, the hydrogen sulfide and the like generated in the sludge at the bottom of the treatment tank floats up sludge, etc. as a scum 58 in the protective pipe 54, and the inside of the protective pipe 54 is also blocked. And, these problems caused the following problems. The first is that it is difficult to pull up the water level at the time of inspection, the second is that it is difficult to re-install the water level after the detector is pulled up, and the third is that The blocking of the vent hole and the blocking of the protective tube cause a pressure difference with the measuring water and the like, and the water level measurement can not be performed normally.

  In this way, every time the water level is checked, scum removal work involving work in the high places and in the pond occurs every day, and in some cases, it is necessary to perform expensive dredging work (construction cost: 100 to 200 million yen) Met. For this reason, there is a demand for an estimated installation structure that is easy to pull up and reinstall the detector from the pump well and to be able to be inspected and cleaned in a short time without being affected by scum.

  Therefore, for example, in Patent Document 1, a hollow pipe-containing cable connecting a detector installed in dirty water with a wave protection guide as a guide, a converter installed in air, the detector, and the converter And a hollow cylindrical weight having a diameter smaller than the inner diameter of the wave-breaking tube and having an inscribed outer diameter, and the hollow pipe-containing cable penetrates through the cylindrical weight. An injection-type water gauge is disclosed, which is characterized in that it is arranged as follows.

  And, according to this technology, by attaching and adhering to or adhering to the inner wall and bottom of the wave protection tube, the cable for the detector, etc. by suspending and dropping a simple weight based on a cylindrical shape inscribed in the inner wall of the wave protection tube. Dust, scum, etc. can be easily detached, damaged, dissipated or scraped out without damaging the inner wall of the wave protection tube or the cable for the detector. Therefore, long-term reliability of the water level gauge circuit can be ensured, and periodic inspection work can be made quick and simplified, and further, extension of the inspection cycle can be expected.

  And in patent document 2, a lower end part is inserted in the bottom of a water surface, the wave-breaking pipe installed, the pressure type water level meter inserted in the inside of this wave-breaking pipe, Opening part of the lower end of the wave-breaking pipe And a bottom cover provided with a through hole, wherein the bottom cover is connected to the bottom cover and displaced integrally with the bottom cover, and extends substantially parallel along the wave-breaking tube and above the water surface An operating rod, and an operating portion provided above the water surface of the operating rod to operate the operating rod, wherein the operating rod is axially and circumferentially displaceable by the operation of the operating portion. A pressure type water level measuring device is disclosed.

  According to this technology, it is possible to directly transmit the operation in the axial direction and the circumferential direction by the operation unit to the bottom cover, and the bottom cover can be moved as the operation of the operation section. It is said that it is possible to facilitate the removal of scum and

JP 2003-75229 A JP 2012-233803 A

  However, the immersion type water level meter described in Patent Document 1 can certainly be removed from the wave protection pipe by pushing away the contaminants and the like in the sewage between the inner wall of the wave protection pipe and the cable. It is possible to reduce the probability of adhesion and adhesion, but again, the removal work is complicated, and because the weight is placed inside, there is a problem that the inspection work also takes time. is there. In addition, it is not suitable for installation in a fast-flowing place, since the wave-breaking tube can not be fixed properly when it is immersed below the surface of the contaminated water.

  Furthermore, the pressure type water level measurement device described in Patent Document 2 has an advantage that the scum, deposits, etc. in the wave protection pipe can be easily removed by freely opening and closing the bottom lid by the operation unit. However, as in the case of the pouring type water level gauge described in Patent Document 1, the removal operation is also complicated. It is very difficult to clean the scum etc. adhering to the inner wall at the position above the bottom of the wave-breaking tube, it takes a very long time for the operation, and the inspection operation also becomes difficult. I will.

  The problem to be solved by the present invention is to cope with the above-mentioned problems, and it can be fixed without outflow even in a place where water flow is fast, and water level measurement error can be reduced, and the influence of scum etc. is small. An object of the present invention is to provide an installation structure of a pouring pressure type water level gauge which is simple, can be easily pulled up and reinstalled, and can greatly reduce the time required for inspection and the like.

In order to solve the above-mentioned subject, the present invention takes the following technical measures.
That is, according to the first aspect of the present invention, in the installation structure of the injection pressure type water level gauge used when detecting the water level in the treatment tank in the sewerage treatment facility, it is fixed at a predetermined location on the inner wall surface of the treatment tank. At the same time, a guide member erected in the treatment tank in the sewerage treatment facility, and both ends attached to the guide member and protected by inserting the injection pressure type water level gauge inside in the vicinity of the bottom of the treatment tank And a guide chain fixed to the vicinity of the upper portion of the protective body and attached to the water level meter cable capable of transmitting a signal detected by the injection pressure type water level meter to the outside of the treatment tank A mounting member is provided on an outer peripheral surface of the protective body, and the mounting member enables the protective body to slide along the vertical direction with respect to the guide member. A installation structure of Tokomi pressure type level gauge, characterized and.

  The invention according to claim 2 is the installation structure of the immersion pressure type water level gauge according to claim 1, wherein the guide member is composed of a pair of guide rails, and the attachment member A pair of hook portions in the form of hooks are formed at both ends in the longitudinal direction, and by hooking the hook portions from the outer direction of each of the guide rails, the protective body is vertically moved relative to the guide rails. It is characterized in that it can slide along the

  Furthermore, the invention according to claim 3 is the installation structure of the immersion pressure type water level gauge according to claim 1, wherein the guide member is made of H-shaped steel, and both ends of the attachment member in the longitudinal direction A pair of hook portions are formed inward in a key shape toward the inside, and hooking the hook portions from both sides of one of the flanges of the H-shaped steel from the outside direction, the protective body is attached to the guide member. On the other hand, it is characterized in that it can slide along the vertical direction.

  And the invention according to claim 4 is the installation structure of the injection pressure type water gauge according to claim 1, wherein the guide member is attached along the side of the steel plate and the erected direction of the steel plate. The mounting member is formed with a pair of hook portions that are in the form of a hook toward the inside, and the hook portions surround the pipe member by the hook member. It is characterized in that the protective body can slide along the vertical direction with respect to the guide member. The invention according to claim 5 is the installation structure of the penetration pressure type water level gauge according to any one of claims 1 to 4, wherein the penetration pressure type water level gauge is provided inside the protective pipe. It is characterized in that it is placed on the above-mentioned water gauge mounting portion.

  According to the installation structure of the injection pressure type water level gauge according to the present invention, the protection body is attached so as to be able to slide up and down along the guide member. Checking and re-installing water level gauges will be simplified. In addition, the protection body and the insertion pressure type water level meter inserted into it should be lowered and installed along the guide member. It is possible to solve the problem of intrusion / accumulation into the protective body of scum consisting of etc.

  In addition, even if sludge etc. floats up with hydrogen sulfide or the like generated in the sludge at the bottom of the treatment tank inside the protective body, it will be removed by the water flow, so it will not interfere with the movement of the water pressure gauge. Furthermore, in the present invention, since the guide chain is attached to the water level gauge cable, the outflow of the water level gauge cable due to the water flow can be prevented, and the water level measurement error can be reduced. And, in the present invention, the protector is attached to the guide member by the attachment member provided on the outer peripheral surface thereof and having the hook shaped hook portion formed inward, so that the stable fixation and the smooth upper and lower sides are achieved. Sliding is possible.

It is the schematic which showed 1st Embodiment of the installation structure of the injection | pouring pressure type water level gauge which concerns on this invention. The protective pipe in 1st Embodiment of the installation structure of the injection | pouring pressure type water level meter which concerns on this invention is shown, (a) is a side view, (b) is a top view, (c) is attached to a guide member. 6 shows an enlarged plan view of the hook portion to be cut. It is the schematic which showed 2nd Embodiment of the installation structure of the injection | pouring pressure type water level gauge which concerns on this invention. The protective pipe in 2nd Embodiment of the installation structure of the injection | pouring pressure type water level meter which concerns on this invention is shown, (a) is a side view, (b) is a top view, (c) is attached to a guide member. 6 shows an enlarged plan view of the hook portion to be cut. It is the schematic which showed 3rd Embodiment of the installation structure of the injection | pouring pressure type water level gauge which concerns on this invention. The protective pipe in 3rd Embodiment of the installation structure of the injection | pouring pressure type water level meter which concerns on this invention is shown, (a) is a side view, (b) is a top view, (c) is attached to a guide member. 6 shows an enlarged plan view of the hook portion to be cut. It is the schematic which showed the installation structure of the conventional pouring pressure type water level gauge.

Hereinafter, an embodiment of an installation structure of a pouring pressure type water level gauge according to the present invention will be described with reference to the drawings.
FIG. 1 is a schematic view showing a first embodiment of the installation structure of the injection pressure type water level gauge according to the present invention, and FIG. 2 is a first view of the installation structure of the injection pressure type water level gauge according to the present invention The protective tube in embodiment of is shown, (a) is a side view, (b) is a top view, (c) represents the enlarged plan view of the hook part attached to a guide member. As for the reference numerals, 10 is the installation structure of the injection pressure type water gauge, 12 is the treatment tank, 14 is the injection pressure type water level gauge, 16 is the inner surface of the treatment tank, 18 is the guide rail, 20 is the treatment tank bottom, 22 is the treatment tank A protective pipe, 23 is a water level gauge mounting portion, 24 is a water level gauge cable, 26 is a guide chain, 28 is a mounting member, 30 is a hook portion, and 34 is a scum.

  In the installation structure 10 of the injection pressure type water level gauge in this embodiment, as shown in FIG. 1, first, the injection pressure type water level gauge 14 used when detecting the water level in the treatment tank 12 in the sewerage treatment facility is installed A pair of guide rails 18 as a guide member fixed to the predetermined position of the inner wall surface 16 of the treatment tank 12 by an anchor and standing on the treatment tank 12 in the sewerage treatment facility; The bottom portion 20 of the processing tank 12 is attached to the guide rail 18 and provided with a protective tube 22 which is a protective body opened at both ends for protecting the internal pressure gauge 14 by inserting the pressure gauge 14 inside. In the present embodiment, the injection pressure type water gauge 14 is placed on the water gauge mounting portion 23 provided inside the protective pipe 22. Although the protective body is a protective tube, the protective body in the present invention is not limited to a tubular one.

  Furthermore, a guide chain 26 fixed to the vicinity of the upper portion of the protective pipe 22 and attached to the water level gauge cable 24 capable of transmitting a signal detected by the injection pressure type water level gauge 14 to the outside of the processing tank 12 A mounting member 28 is provided on the outer peripheral surface of the protective tube 22. The mounting member 28 enables the protective tube 22 to slide along the vertical direction with respect to the guide rail 18. In the present embodiment, the protective pipe 22 is landed on the bottom portion 20 of the processing tank 12 in the figure, but for example, a plate-like stopper is provided at the lowermost portion of the guide rail 18. The protection tube 22 may be configured not to land on the bottom portion 20 by being interposed between the bottom portions 20.

  Here, as shown in FIG. 2, the attachment member 28 provided on the outer peripheral surface of the protective tube 22 is provided with a pair of hook portions 30 which are in the form of a hook toward the inside at both ends in the longitudinal direction. By hooking the pair of hooks 30 on the pair of guide rails 18 from the outside direction, the guide rails 18 can slide along the vertical direction.

  As described above, the protective pipe 22 is mounted so as to be able to slide up and down along a pair of guide rails, so that the protective pipe 22 can be pulled up and cleaned, the inspection operation of the pouring pressure type water level gauge, and reinstalled Work becomes easy.

  Further, according to the present embodiment, the protective tube 22 may be lowered along with the guide rail 18 together with the insertion pressure type water level indicator 14 inserted therein, and may be installed, so that the open state to the water flow can be maintained. . As a result, it is possible to prevent the infiltration and accumulation of the scum 34 consisting of fat and oil etc. floating in a large amount on the water surface into the protective pipe 22 and hydrogen sulfide etc. generated in the sludge at the bottom of the treatment tank. The scum 34 rising in the protective pipe 22 can also be removed by the flow of water.

  Furthermore, in the present embodiment, as shown in FIG. 1, since the guide chain 26 is attached to the water level gauge cable 24, the outflow of the water level gauge cable 24 can be prevented by the water flow. Reduction is also possible.

Subsequently, a second embodiment of the installation structure of the injection pressure type water level gauge according to the present invention will be described with reference to the drawings.
FIG. 3 is a schematic view showing a second embodiment of the installation structure of the injection pressure type water level gauge according to the present invention, and FIG. 4 is a second view of the installation structure of the injection pressure type water level gauge according to the present invention The protective tube in embodiment of is shown, (a) is a side view, (b) is a top view, (c) represents the enlarged plan view of the hook part attached to a guide member. The numerals are the same as in FIGS. 1 and 2 except that 36 is H-shaped steel and 38 is a flange.

  In the installation structure 10 of the injection pressure type water level gauge in this embodiment, as shown in FIG. 3, first, the injection pressure type water level gauge 14 used when detecting the water level in the treatment tank 12 in the sewerage treatment facility is installed The H-shaped steel 36 and the H-shaped steel 36 are fixed at predetermined locations on the inner wall surface 16 of the treatment tank 12 and are guide members erected on the treatment tank 12 in the sewerage treatment facility. The bottom portion 20 of the processing tank 12 is provided with a protective pipe 22 which is a protective body opened at both ends which is protected by inserting the injection pressure type water gauge 14 inside. In the present embodiment, the injection pressure type water gauge 14 is placed on the water gauge mounting portion 23 provided inside the protective pipe 22. Although the protective body is a protective tube, the protective body in the present invention is not limited to a tubular one.

  Furthermore, a guide chain 26 fixed to the vicinity of the upper portion of the protective pipe 22 and attached to the water level gauge cable 24 capable of transmitting a signal detected by the injection pressure type water level gauge 14 to the outside of the processing tank 12 A mounting member 28 is provided on the outer peripheral surface of the protective tube 22. The mounting member 28 enables the protective tube 22 to slide along the H-shaped steel 36 in the vertical direction. In the present embodiment, the protective pipe 22 is landed on the bottom portion 20 of the processing tank 12 in the drawing, but for example, a plate-like stopper is provided at the lowermost portion of the H-shaped steel 36. The protection tube 22 may be configured not to land on the bottom portion 20 by being interposed between the bottom portions 20.

  Here, as shown in FIG. 4, the attachment member 28 provided on the outer peripheral surface of the protective tube 22 is formed with a pair of hook portions 30 which are in the form of a key toward the inside. The hook portion 30 is hooked from the outside direction to both ends of one flange 38 of the H-shaped steel 36, so that the H-shaped steel 36 can be stably slid along the vertical direction. As described above, the protective pipe 22 is mounted so as to be able to slide up and down along the H-shaped steel 36, so that the protective pipe 22 can be pulled up and cleaned, the inspection operation of the injection pressure type water level gauge, and the re-installation work It will be simple.

  Further, according to the present embodiment, since the protective pipe 22 may be lowered along with the H-shaped steel 36 together with the injection pressure type water level meter 14 inserted therein, the open state can be maintained against the water flow. . As a result, it is possible to prevent the infiltration and accumulation of the scum 34 consisting of fat and oil etc. floating in a large amount on the water surface into the protective pipe 22 and hydrogen sulfide etc. generated in the sludge at the bottom of the treatment tank. The scum 34 rising in the protective pipe 22 can also be removed by the flow of water.

  Furthermore, in the present embodiment, as shown in FIG. 3, since the guide chain 26 is attached to the water level gauge cable 24, it is possible to prevent the water level gauge cable 24 from flowing out due to water flow. Reduction is also possible.

Subsequently, a third embodiment of the installation structure of the injection pressure type water level gauge according to the present invention will be described with reference to the drawings.
FIG. 5 is a schematic view showing a third embodiment of the installation structure of the injection pressure type water level gauge according to the present invention, and FIG. 6 is a second view of the installation structure of the injection pressure type water level gauge according to the present invention The protective tube in embodiment of is shown, (a) is a side view, (b) is a top view, (c) represents the enlarged plan view of the hook part attached to a guide member. The numerals are the same as in FIGS. 1 and 2 except that 40 is a steel plate and 42 is a pipe member.

  In the installation structure 10 of the injection pressure type water level gauge in this embodiment, as shown in FIG. 5, first, the injection pressure type water level gauge 14 used when detecting the water level in the treatment tank 12 in the sewerage treatment facility is installed The steel plate 40 fixed to a predetermined location on the inner wall surface 16 of the treatment tank 12 and standing on the treatment tank 12 in the sewerage treatment facility, and one side of the steel plate 40 in the standing direction It is attached to the guide member which consists of the pipe member 42 attached along, and at the bottom 20 of the treatment tank 12, it is the protection which opened at both ends which protect by inserting the insertion pressure type water gauge 14 inside. A protective pipe 22 is provided. In the present embodiment, the injection pressure type water gauge 14 is placed on the water gauge mounting portion 23 provided inside the protective pipe 22. Although the protective body is a protective tube, the protective body in the present invention is not limited to a tubular one.

  Furthermore, a guide chain 26 fixed to the vicinity of the upper portion of the protective pipe 22 and attached to the water level gauge cable 24 capable of transmitting a signal detected by the injection pressure type water level gauge 14 to the outside of the processing tank 12 A mounting member 28 is provided on the outer peripheral surface of the protective pipe 22. The mounting member 28 extends the protective pipe 22 in the vertical direction with respect to the guide member configured of the steel plate 40 and the pipe member 42. Sliding is possible. In the present embodiment, the protective pipe 22 is landed on the bottom portion 20 of the processing tank 12 in the figure, but for example, a plate-like stopper is provided at the lowermost portion of the guide member configured of the steel plate 40 and the pipe member 42 By providing the stopper and interposing the stopper between the protective tube 22 and the bottom 20, the protective tube 22 may be configured not to land on the bottom 20.

  Here, as shown in FIG. 6, the attachment member 28 provided on the outer peripheral surface of the protective tube 22 is formed with a pair of hook portions 30 which are in the form of a key toward the inside. By surrounding the periphery of the pipe member 42 with the hook portion 30 from the outside in close proximity, respectively, it is possible to stably slide along the vertical direction of the guide member. As described above, the protective pipe 22 is attached so as to be able to slide up and down along the guide member, so the lifting and cleaning of the protective pipe 22 and the inspection work and re-installation work of the injection pressure type water gauge are easy. It becomes a thing.

  Further, according to the present embodiment, the protective pipe 22 may be lowered along with the guide member together with the insertion pressure type water level indicator 14 inserted therein, and the protective pipe 22 may be installed, so that the open state to the water flow can be maintained. As a result, it is possible to prevent the infiltration and accumulation of the scum 34 consisting of fat and oil etc. floating in a large amount on the water surface into the protective pipe 22 and hydrogen sulfide etc. generated in the sludge at the bottom of the treatment tank. The scum 34 rising in the protective pipe 22 can also be removed by the flow of water.

  Furthermore, in the present embodiment, as shown in FIG. 5, since the guide chain 26 is attached to the water level gauge cable 24, it is possible to prevent the water level gauge cable 24 from flowing out due to water flow. Reduction is also possible.

  According to the present invention, lifting and cleaning of the protective pipe and inspection work of the injection pressure type water level gauge can be simplified, and in order to maintain the open state against the water flow, fat and oil components floating in large amounts on the water surface, etc. It is possible to solve the problem of intrusion / accumulation of scum into the protective pipe and to prevent the water level meter cable from flowing out due to water flow, and further to reduce the water level measurement error, so various aspects It can be used suitably for water level measurement in the treatment tank of the above.

DESCRIPTION OF SYMBOLS 10 Installation structure of injection pressure type water level gauge 12 Treatment tank 14 Injection pressure type water level gauge 16 Internal wall surface 18 Guide rail 20 Treatment tank bottom 22 Protective pipe 23 Water level gauge mounting part 24 Water level gauge cable 26 Guide chain 28 installation Member 30 hook portion 34 scum 36 H-shaped steel 38 flange 40 steel plate 42 pipe member

Claims (5)

In the installation structure of the injection pressure type water level gauge used when detecting the water level in the treatment tank in the sewerage treatment facility,
A guide member fixed at a predetermined location on the inner wall surface of the treatment tank and standing on the treatment tank in the sewerage treatment facility;
A protective member attached to the guide member and open at both ends in the vicinity of the bottom of the processing tank to protect the internal pressure gauge by inserting the water pressure gauge inside;
A guide chain fixed to the vicinity of the upper portion of the protective body and attached to a water level gauge cable capable of transmitting a signal detected by the pressure drop type water gauge to the outside of the treatment tank;
Equipped with
An attaching member is provided on the outer circumferential surface of the protective body,
An installation structure of a pouring pressure type water level gauge characterized in that the protective body can slide along the vertical direction with respect to the guide member by the mounting member. The guide member is composed of a pair of guide rails, and the attachment member is provided with a pair of hook portions which are hooked inward at both longitudinal ends.
2. The pressure-insertion type according to claim 1, wherein the protective member is slidable along the vertical direction with respect to the guide rail by hooking the hook portion from the outer direction of each of the guide rails. Installation structure of water level gauge. The guide member is made of an H-shaped steel, and the attachment member is provided with a pair of hook portions which are hooked inward at both longitudinal ends thereof.
By hooking the hook portion from both sides of one of the flanges of the H-shaped steel from the outside direction, the protector can be slid along the vertical direction with respect to the guide member. Installation structure of the injection pressure type water level indicator of 1 statement. The guide member is composed of a steel plate and a pipe member attached along one side of the steel plate in the erecting direction, and the attachment member has a key-like shape inward at a predetermined location thereof. A pair of hooks are formed,
2. The immersion pressure type water gauge according to claim 1, wherein the hook member enables the protective body to slide along the vertical direction with respect to the guide member by surrounding the pipe member. Installation structure.   The said injection pressure type water level gauge is mounted in the water level gauge mounting part provided in the inside of the said protective pipe, The injection pressure type water level gauge in any one of the Claims 1-4 characterized by the above-mentioned. Installation structure.

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