JP4413794B2 - Odor prevention device - Google Patents

Description

  The present invention relates to an odor prevention apparatus provided attached to a facility for handling sludge such as sewerage facilities, and more particularly to an odor prevention apparatus suitable for use in a sludge handling facility for managing sludge in a building.

  Conventionally, as this kind of odor prevention device, in order to deodorize the odor in the water tank of the sewage treatment facility, the odor environment in the water tank is constantly improved by discharging the odor in the water tank outside the water tank. There is.

  As such an odor prevention device, there is one disclosed in JP 2000-27282 A (see Patent Document 1). Patent Document 1 discloses an odor preventing apparatus 1 as shown in FIG.

  The odor prevention apparatus 1 includes a water tank 2 provided to receive and store sewage a, a monitoring control panel 3 that monitors the amount of water stored in the water tank 2, and the water tank 2 and the monitoring control panel 3. The exhaust pipes 4a and 4b are connected so as to be able to exhaust the strange odor in the water tank 2 between them.

  The water tank 2 is provided with an inflow pipe 5 for sewage a, and the sewage a is temporarily stored. In the water tank 2, a water level gauge 6 is disposed in the lower part via a signal cable 7.

  In the water level gauge 6, a signal cable 7a is inserted into the exhaust pipe 4a, and a power cable 7b is inserted into the exhaust pipe 4b and connected to the monitoring control panel 3 side. Further, a submersible pump 8 is disposed in the water tank 2, and a pressure feed pipe 9 is provided so that the submersible pump 8 can be discharged to the outside as needed, for example, when discharging the sewage a.

  The monitoring control panel 3 is provided with an odor discharging device 10 so that the sewage odor in the water tank 2 can be exhausted to the outside through the exhaust pipes 4a and 4b. The odor discharge device 10 includes an exhaust chamber 11, a deodorization filter 12 that allows the odor of the sewage a in the water tank 2 to pass through the exhaust chamber 11, and an exhaust that can be forced to exhaust through the deodorization filter 12. A fan 13 is provided.

  Reference numeral 14 denotes a lid provided for performing an inspection or the like in the water tank 2. When the lid 14 is opened and handling such as inspection in the water tank 2 is carried out, even if the operator performs the work in the water tank 2, it is less likely to be strongly affected by a strange odor.

Thus, according to the conventional odor prevention apparatus 1, since it is comprised so that the strange odor which generate | occur | produces with the sewage a in the water tank 2 can be discharged | emitted from the monitoring control panel 3 side to the exterior, The operator who opens the lid body 13 is less affected by the odor from the sewage a and can improve the working environment.
JP 2000-27282 A

  According to the conventional odor prevention apparatus 1, the odor discharge device 10 is provided so as to always remove the odor in the water tank 2. The odor discharge apparatus 10 always exhausts the odor in the water tank 2. Therefore, it is necessary to install equipment such as an exhaust fan 13 for operating the odor discharge device 10 at all times.

  Further, the odor discharging device 10 has a drawback that the exhaust fan 13 is always operated and its power consumption is considerably increased.

  The present invention has been made in view of the above circumstances, does not require special equipment, and does not require continuous operation of driving equipment such as an exhaust fan. It is an object of the present invention to provide an odor prevention device that can reduce the influence of odor during work as much as possible for a handler by using a deodorizing means.

  In order to achieve the above object, according to the present invention, a sewage measurement stand installed on the floor and a water tank provided below the floor are dropped from a cable inlet to the water tank provided below the floor. A signal cable and a deodorizing device provided so as to close the cable inlet from the outside. The deodorizing device comprises an odor preventing device main body and an odor seal provided above the odor preventing device main body so as to be opened and closed. A stop lid, a blower fan device installed in the odor prevention device main body and capable of blowing air toward the cable inlet, and a fan that drives the blower fan device in conjunction with opening and closing operations of the odor sealing lid An odor prevention device comprising a switch is provided.

  According to the present invention, the odor prevention device can be driven only when necessary, while the odor can be effectively blocked, so that the handler can minimize the influence of the odor during work. It is possible to provide an odor prevention device that can be used.

  Embodiments of an odor preventing apparatus according to the present invention will be described with reference to the accompanying drawings.

  1 and 2 are diagrams showing an outline of an embodiment of the odor preventing apparatus of the present invention. FIG. 1 shows a state in which the odor preventing apparatus 20 is stopped (during water level measurement), and FIG. 2 shows an odor preventing apparatus. 20 shows a state during operation.

  As shown in FIG. 1, the odor prevention apparatus 20 is installed on the floor surface 21 of the apparatus installation room. This odor prevention device 20 is used to measure the water level in the water tank 22 that temporarily stores the sewage x installed under the floor 21, even if the operator works from the floor 21, the odor due to the sewage x. It is provided to eliminate the influence of

  The odor prevention device 20 is provided on the floor surface 21 and is handled by the operator's manual work, and a cable inlet provided above the water tank 22 for measuring the water level from the sewage measurement stand 23 side. The signal cable 24 dropped from 22a and the odor sealing device 25 provided to close the cable introduction port 22a from the outside.

  The sewage measurement stand 23 holds a signal cable 24 led out from the sewage measurement stand 23, and a main column 26 having a height of the eye level so that the handling operator can easily handle the main column 26 and the main column. 26, a cable hook 27 that holds the signal cable 24 and a cable holding arm 28 that is provided as a guide for hanging the signal cable 24 from above the cable introduction port 22 a of the water tank 22. The cable holding arm 28 is provided with a cable guide hole 28a for inserting and holding the signal cable 24 at the tip thereof.

  On the other hand, the odor sealing device 25 is provided so as to cover the cable inlet 22a of the water tank 22 from above, and is provided with a bottomed cylindrical or box-shaped odor prevention as an odor prevention device body provided so as not to leak odor to the outside. A double-opening type odor sealing lid 31 as shown in FIGS. 2 to 4 that covers the container 29 and the upper opening of the deodorization container 29, and the deodorization container 29, which can blow air toward the cable inlet 22a. A blower fan device 32 provided on the front side, a support base 33 for supporting the blower fan device 32 in a funnel-like manner when viewed from the side, and a fan 34 of the blower fan device 32 in front of the cable inlet 22a. And a fan switch 35 that drives the blower fan device 32 in conjunction with the opening / closing operation of the odor sealing lid 31.

  The deodorizing container 29 has a boss 29c projecting downward at the center of the bottom, and is coaxially attached to the boss 29c.

  As shown in FIGS. 1 and 2, the support base 33 supports each of the blower fan devices 32 by tilting it at a desired angle on an upper surface inclined in a funnel shape toward the cable introduction port 22 a.

  Further, the cable conduit 36 is provided so as to extend into the water tank 22 from the cable introduction port 22 a of the water tank 22.

  The deodorizing cylinder 30 includes a cylindrical wall portion 30 a and a flange portion 30 b that are higher than the installation position of the blower fan device 32. A plurality of through holes 30 c are formed in the wall portion 30 a so as to face the air blowing side of the fan 34 of the air blowing fan device 32. The deodorizing cylinder 30 is configured to be able to block the odor y, which is about to leak out from the plurality of through holes 30c, intensively and efficiently by blowing air from the fan 34 of the blowing fan device 32.

  As shown in FIG. 3, the odor sealing lid 31 includes a pair of lid portions 31a supported by hinges 29b at the ends of the body portion 29a of the deodorizing container 29, and a handle 31b on each of the pair of lid portions 31a. Provided.

  The pair of lid portions 31a is provided with a seal packing 31c at a joint portion between the lid portions so that the lid portions can be liquid-tightly sealed. Further, the pair of lid portions 31a is provided with a notch 31d through a seal packing 31c so that the signal cable 24 can pass through when the lid is closed. As shown in FIG. 3, the pair of lid portions 31 a are closed and the notches 31 d are combined to form a through hole. The signal cable 24 is inserted into the through hole as shown in FIG.

  On the other hand, as shown in FIG. 4, in the blower fan device 32, four fans 34 are installed on a support base 33 provided in the deodorizing container 29 toward the deodorizing cylinder 30. The air generated when these fans 34 operate simultaneously is sent into the water tank 22 from the respective through holes 30c of the deodorizing cylinder 30, and the strange odor rising from the cable inlet 22a side of the water tank 22 does not leak to the outside. As described above, an air curtain is formed and functions to be confined to the water tank 22 side.

  The fan switch 35 is a switch that operates (turns on) when at least one of the pair of lid portions 31a is opened. When the switch 35 is turned on, the blower fan device 32 is activated.

  Note that a water level detector 37 that detects the water level in the water tank 22 is provided at the tip of the signal cable 24, and is dropped to the water tank bottom surface 22b when the water level is measured. The water level detector 37 detects the water pressure at the position dropped into the water tank 22 and transmits the detected water pressure data to a water tank monitoring room (not shown) via the signal cable 24. ing. On the water tank monitoring room side, the amount of sewage is measured by calculating the amount in the water tank 22 based on the water pressure data.

  On the other hand, as shown in FIGS. 1 and 2, the water tank 22 is formed of a concrete wall and temporarily stores a predetermined amount of sewage x that generates a strange odor. A cylindrical deodorizing tube 40 reaching up to 22b is installed.

  The deodorizing pipe 40 is fixed to the side wall surface of the water tank 22 so that the deodorizing pipe 40 is stably installed in the water tank 22, and a pair of upper and lower deodorant pipe holding arms 41 engaged by the engaging portion 41a on the other end side. To keep it stable. The deodorizing tube 40 is provided so as to prevent the odor y generated in the sewage x of the water tank 22 from being diffused, and serves as a guide for the water level detector 37 dropped together with the signal cable 24 from the cable inlet 22a side. Is. The deodorizing tube 40 is fixed to the side wall portion by a plurality of deodorizing tube holding arms 41 extended from the side wall portion of the water tank 22.

  Further, the water tank 22 is provided with a sewage inflow port 42 through which the temporarily stored sewage x flows in and a sewage outflow port (not shown) through which the sewage x flowing in gradually flows out. As shown in FIGS. 1 and 2, the sewage inlet 42 is provided with a valve device 43 that closes the sewage inlet 42 when the amount of sewage x in the water tank 22 exceeds a predetermined management reference value. .

  Next, the effect | action of the odor prevention apparatus 20 is demonstrated with reference to FIGS.

  Description will be made along the procedures handled by the operator at the time of maintenance of the odor prevention apparatus 20 itself or at the time of checking the amount of sewage in the water tank 22, for example, at the time of periodic sewage check.

  The handler sets the signal cable 24 from the state shown in FIG. 2 to the state shown in FIG.

  First, as shown in FIG. 2, the signal cable 24 hung on the cable hook 27 on the sewage measurement stand 23 side is unwound, removed from the cable hook 27, and the signal cable 24 is lengthened.

  Next, the odor sealing lid 31 of the odor sealing device 25 is opened. When the odor sealing lid 31 is opened, the odor y generated from the sewage x in the water tank 22 rises in the deodorizing pipe 40 and the cable conduit 36 as shown in FIG. The deodorizing container 29 of the blower fan device 32 is filled through.

  Then, when the odor sealing lid 31 is opened, the odor y flows out from the deodorizing container 29 of the odor sealing device 25 to the outside. Simultaneously with the outflow of the odor y out of the deodorizing container 29, the blower fan device 32 is activated.

  When the blower fan device 32 is operated, the blower action of the fan 34 acts to push the odor y back from the deodorant container 29 toward the water tank 22 side. When the four blower fan devices 32 are operated, the fan 34 blows air concentratedly on the cable inlet 22a side of the water tank 22, so that the odor component y is not dissipated and the cable 34 It acts to push back into the deodorant tube 40 via the conduit 36.

  Next, the signal cable 24 unwound from the cable hook 27 is lifted by hand, and the water level detector 37 is dropped onto the water tank bottom surface 22b from directly above the cable inlet 22a of the water tank 22. As shown in FIG. 1, when the water level detector 37 reaches the water tank bottom surface 22 b, the signal cable 24 is released and the odor sealing lid 31 of the odor sealing device 25 is closed.

  When a series of operations up to the water level measurement by the operator is completed, the water level detector 37 in the water tank 22 is automatically operated to acquire the water level detection data z. This water level detection data z is transmitted to the water tank monitoring room side via the signal cable 24.

  On the water tank monitoring room side, based on the water level detection data z, the water level in the water tank 22 is detected. If this water level exceeds the control reference value, the valve device 43 is immediately closed to close the sewage inlet 42. The actuating means is actuated. When the water level does not exceed the management reference value, the valve device 43 does not operate the operating means to maintain the current state.

  As described above, the odor prevention apparatus 20 includes the sewage measurement stand 23 installed on the floor surface 21 and the water tank provided below the floor surface from the cable introduction port 22a provided on the floor surface 21 from the sewage measurement stand 23 side. The signal cable 24 dropped into the side 22 and the odor sealing device 25 provided so as to close the periphery of the cable introduction port 22a from the outside. The odor sealing device 25 includes the deodorization container 29 and the deodorization container. The odor sealing lid 31 that can be opened and closed above 29, the blower fan device 32 that is installed in the deodorization container 29 and that can be blown toward the cable introduction port 22 a, and the odor sealing lid 31 for opening and closing Since the fan switch 35 that drives the blower fan device 32 in conjunction with the configuration is provided, when the operator measures the water level in the water tank 22 as necessary, it is caused by odor. Never suffer the discomfort.

  When the odor sealing lid 31 is opened and the water level detector 37 is dropped from the cable inlet 22 a of the water tank 22, the odor y leaking from the cable inlet 22 a side is caused by the fan 34 of the blower fan device 32 of the odor sealing device 25. This prevents the odor y from leaking from the inside of the deodorizing container 29 to the outside.

  Further, according to the odor prevention device 20, the fan 34 of the blower fan device 32 is provided toward the cable introduction port 22a, so that the odor y that tends to leak to the outside from the cable introduction port 22a is generated by the fan 34. Since it acts so as to be confined from the cable introduction port 22a into the water tank 22 by blowing air, it acts so that the odor y does not leak from the cable introduction port 22a to the outside. Therefore, there is no discomfort due to odor when performing the measurement work.

  Furthermore, according to the odor preventing apparatus 20, a plurality of blower fan devices 32 are installed, and each fan 34 blows air toward the cable introduction port 22a. It acts to be confined in the water tank 22 from the inlet 22a. Therefore, there is no discomfort due to a strange odor when performing the measurement work.

  Further, according to the odor preventing apparatus 20, the fan 34 provided toward the cable inlet 22a side of the deodorizing container 29 is held from the front side of the fan 34 at a desired angle α (only one shown) shown in FIG. Since the support base 33 that can be used is provided, the desired angle α can be varied according to the state of odor.

  For example, when the odor is stronger than usual, the desired angle α of the support base 33 is set to a larger angle. That is, the direction of the air blown by the fan 34 is blown into the cable inlet 22 a of the water tank 22, for example, from directly above. In this case, the leakage of odor can be effectively blocked by increasing the amount of air blown relatively.

  Furthermore, according to the odor preventing apparatus 20, the deodorizing cylinder 30 having a plurality of through holes 30c formed in front of the fan 34 is provided, and the odor y that is about to leak out from the through holes 30c of the cylindrical portion is concentrated. Therefore, it is possible to block odor leakage more effectively. Therefore, there is no discomfort due to odor when performing the measurement work.

  According to the odor prevention apparatus 20, the button-type fan switch 35 is turned on / off by opening and closing the odor sealing lid 31, but the button-type fan switch 35 is not necessarily limited to the button type. The switch can also be used.

  In addition, the fan switch 35 is a timer that operates the blower fan device 32 at a predetermined time in accordance with the timing when the odor prevention device 20 is regularly checked or the water level of the water tank 22 is measured periodically. It may have a function.

  Furthermore, according to the odor prevention apparatus 20, the example applied to the water tank 22 for temporarily storing the sewage x has been described. However, the odor prevention apparatus 20 is not necessarily applied only to the water tank 22, but generates various odors of the sewage x. Of course, it is applicable to various facilities.

BRIEF DESCRIPTION OF THE DRAWINGS Schematic which shows the cross section which shows one part which shows embodiment of the odor prevention apparatus which concerns on this invention. Sectional drawing in alignment with the AA of FIG. The figure which shows the state which open | released the odor sealing lid | cover of the odor prevention apparatus shown in FIG. Sectional drawing which follows the BB line of FIG. The partial longitudinal section which shows the outline | summary of the conventional odor prevention apparatus.

Explanation of symbols

20 Odor Control Device 21 Floor 22 Water Tank 22a Cable Inlet 22b Water Tank Bottom 23 Sewage Measurement Stand 24 Signal Cable 25 Odor Sealing Device 26 Main Column 27 Cable Hanging Arm 28 Cable Holding Arm 28a Cable Guide Hole 29 Deodorization Container (Odor Control Device Body)
29a Body part 29b Hinge 29c Boss part 30 Deodorant cylinder 30a Wall part 30b Flange part 30c Through hole 31 Odor sealing lid 31a A pair of lid parts 31b Handle 31c Seal packing 31d Notch part 32 Blower fan device 33 Support base 34 Fan 35 Fan Switch 36 Cable conduit 37 Water level detector 40 Deodorant pipe 41 Deodorant pipe holding arm 42 Sewage inlet 43 Valve device x Wastewater y Odor z Water level detection data

Claims (6)

A sewage measurement stand installed on the floor;
A signal cable dropped from the cable inlet of the aquarium provided below the floor to the aquarium side provided below the floor,
A deodorizing device provided to close the cable inlet from the outside,
The deodorization device is provided in the odor prevention device main body, an odor sealing lid provided on the odor prevention device main body so as to be openable and closable, and installed in the odor prevention device main body so as to blow air toward the cable inlet. An odor preventing device comprising: a blower fan device to be operated; and a fan switch for driving the blower fan device in conjunction with an opening / closing operation of the odor sealing lid. The odor prevention apparatus according to claim 1, wherein the blower fan apparatus is provided with a blower fan toward the cable introduction port side of the odor prevention apparatus main body. 3. The odor prevention apparatus according to claim 2, wherein a plurality of the blower fans are provided toward the cable introduction port side of the odor prevention apparatus main body. 2. The odor prevention apparatus according to claim 1, wherein the blower fan apparatus is provided with a support base that can hold the fan so that the fan faces the cable introduction port side of the odor prevention apparatus main body at a required angle. 2. The odor prevention apparatus according to claim 1, wherein the odor prevention apparatus is provided with an odor prevention cylindrical body having a plurality of through holes around the cable inlet of the water tank in the odor prevention apparatus main body. . 6. The odor prevention apparatus according to claim 5, wherein the deodorizing cylinder is provided with a wall portion for holding a part of the blower fan device.

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