JP2023110800A - Drainage pit apparatus (2) - Google Patents

Abstract

Kind Code: A1 A drainage pit device is provided that provides an insect repellent effect from drainage pipes and reliably prevents foul odors from entering a food water treatment plant. [Solution] A water collecting trough is connected to a duster ditch into which contaminated water from a food water treatment plant flows, and a drain pipe is communicatively connected through a water-sealed and deodorizing cover provided at the top of the water collecting trough with a blocking basket provided at the bottom. In the pit equipment, a sensor for detecting odors generated by contaminants contained in the polluted water is placed in a catch basin or an impediment basket, and a malodor detection signal is introduced from the sensor and this odor detection value is set in advance. A comparator is provided to transmit an abnormal signal when the odor detection value exceeds the control standard value compared with a certain control standard value. A deodorant spraying device or a water sprinkling washing device is provided that introduces an abnormality signal from the comparator and operates for a predetermined time, and the water level in the basin is maintained above the level of the water-sealed deodorant cover by the abnormality signal. Drainage pit device with regulating device. [Selection drawing] Fig. 1

Description

The present invention automatically detects foul odors caused by contaminants adhering to the drainage channel wall or pool, automatically detects the abnormality, automatically sprays deodorant or sprays water to remove the odor, or A drainage pit device that maintains the water sealing and deodorizing function of the water sealing and deodorizing cover inside the basin by adjusting the water level, reliably prevents the inflow of odors from the drainage pipe into the food water treatment plant, and also obtains the insect repellent effect from the discharge pipe. Regarding.

The sanitary aspects of floor drainage pit devices in food factories, catering centers, school lunches, hospitals, restaurant kitchens, etc. are mainly reinforced by HACCP under the Food Sanitation Act.
The HACCP (Hazard, Analysis, Critical, Control, Point) system subdivides the food manufacturing process, performs risk management for each process, and identifies problematic products. It prevents shipment, and in the unlikely event that a food accident occurs, it quickly identifies which process caused the problem and responds accordingly.
Since the conventional floor drainage pit apparatus uses a concrete drainage ditch, cracks occur due to deterioration over time and gradually expand, allowing drainage to enter and cause sewage leakage. As a result, the contaminants proliferate in the cracks, and the contaminants may flow out of the system of the drainage pit apparatus, leading to the spread of contamination.

For this reason, in recent years, stainless steel (SUS) or resin-made receiving frames, which are excellent in antibacterial, antifungal, abrasion, heat, and chemical resistance, have been used for integrated duster pits and neotroughs for drainage groove molding. A floor drainage pit device with a duster groove, etc. was developed.
As for the specific structural design, we adopted a round or elliptical structure to make it difficult for food leftovers, dirt, and dust to adhere and to facilitate cleaning. Measures such as forming a water gradient at the bottom are intended to reduce pooling and enable smooth running water drainage.

In addition, although the unevenness of the surface of the water channel is improved by using the conventional stainless steel drainage channel, it is paradoxically difficult to judge the adhesion of contaminants to the surface of the water channel, and it is not visually reliant. A judgment method is required.

The present invention automatically detects the foul odor caused by contaminants in the water channel while continuously flowing the fouled water in a drainage pit device into which fouled water from a food water treatment plant or the like flows, and converts the foul odor state into data. By monitoring and grasping abnormalities, automatic deodorant spraying or water spray deodorization is carried out, or the water level is adjusted to maintain the water level in the container at a favorable level to maintain the normal function of the water-sealed deodorant cover, thereby removing food from the drain pipe. To provide a drainage pit device capable of surely preventing the inflow of bad odors into a water treatment plant and obtaining an insect repellent effect from a drainage pipe.

The main technical configurations of the present invention that satisfy the above problems are as follows (1) to (4).
(1) A water collecting trough is connected to the duster ditch into which contaminated water from the food water treatment plant flows, and a waste collection trough is provided at the top of the water collecting trough, and a drain pipe is connected to the bottom through a water-sealed and deodorant cover. In the connected pit apparatus, a sensor for detecting odors generated by contaminants contained in the contaminated water is arranged in the water collection basin or the collection basket. A comparator for transmitting an abnormal signal when the malodor detection value exceeds the control standard value compared with a set control standard value is provided, and a display device for introducing and displaying the abnormal signal from the comparator. and a deodorant spraying device or a water spray cleaning device that introduces an abnormal signal from the comparator into the trap cage and sprays for a predetermined time, and the water level in the water collection basin is controlled by the abnormal signal. A drainage pit device characterized by having a water level adjusting device in the basin that maintains the water level above the cover level.

The present invention is a drainage pit apparatus that facilitates the maintenance and management of food sanitation and is safe in terms of both hygiene and safety.
That is, for example, in a drainage pit device in a food processing line, adhesion of leftover food, filth, and dust cannot be completely eliminated. Automatically detect odors caused by contaminants adhering to the water and convert them into data, grasp the abnormalities, automatically spray deodorant and spray deodorizing areas where abnormalities are detected, and further deodorize by water sealing with the water level adjustment device. To provide a drainage pit device which satisfactorily maintains the water-sealing and deodorizing function of a cover, reliably prevents the filling of a food processing line with a foul odor from a drainage pipe, and quickly and accurately obtains an insect-repellent effect from the drainage pipe.

FIG. 2 is a side cross-sectional explanatory view showing a control system according to an embodiment of the present invention; FIG. 2 is an explanatory plan view including a control system showing the embodiment of FIG. 1;

A mode for carrying out the invention will be described in detail with reference to embodiments shown in FIGS. 1 and 2. FIG.

As shown in FIG. 1, the drainage pit apparatus 100 of this example includes a plurality of duster grooves 102-1 to 102-4 (duster pits or dusters) embedded in the floor surface 101 into which contaminated water from the food pretreatment process flows. A catch basin 103 for temporarily storing inflow water is communicated with the trough), and a catch basket 104 for filtering food leftovers, filth, and dust in the contaminated water is detachably provided at the top of the catch basin 103, and at the bottom The basic configuration is a drainage pit device in which a drainage pipe 105 is connected through a water seal and deodorant cover 106 and a drainage pipe opening/closing device 107 is provided on the drainage pipe 105 .

In the drainage pit device 100, an odor sensor S1 for detecting offensive odors generated from food leftovers, filth, and dust accumulated in the interceptor basket 104 is arranged right above the interceptor basket 104. As shown in FIG.
The odor sensor S1 of the trap 104 detects the polluted odor and introduces the odor concentration signal 11 into the comparator C1, which compares it with the preset odor concentration control standard value 01 to obtain the odor concentration control standard value. When it exceeds 01, an abnormality signal 01U is transmitted to the deodorizing command device Co1.
The abnormal signal 01U is also introduced to the display device D1 to display the name of the basket 104 and the detected odor concentration. The deodorizing command device Co1 transmits a cleaning operation command signal ST1 to the deodorant spray cleaning device 201 and/or the deodorant chemical injection water spray cleaning device 202 provided in the upper portion of the interceptor cage 104 to perform deodorant spray cleaning and/or cleaning for a predetermined time. Deodorization and washing treatment are carried out by spraying deodorizing agent and washing, and the removal display of the collected leftover food in the basket is set to the display D1 to remove the collected leftover food, eliminate the bad smell, and restore the normal state.
When the odor concentration signal 11 from the odor sensor S1 is a rapidly concentrated malodor, the deodorization command device Co1 closes the drain pipe opening/closing device 107 of the drain pipe 106 to prevent the odor from flowing into the food pretreatment process from the drain pipe. It can be expected to have an insect repellent effect from the drainpipe as well as prevent it.

Further, the water collecting basin 103 is provided with a water level adjusting device 203 in order to stably maintain the water level in the basin at the water sealing level of the water seal deodorizing cover 106 of the water collecting basin 103 .
The water level adjusting device 203 has a lower limit water level measuring device 203-1, an upper limit water level measuring device 203-2 and a replenishing water supply device on the inner wall of the water collecting basin 103 in order to maintain the water sealing function and the deodorizing function of the water sealing and deodorizing cover 106 well. 203-3, which reliably prevents the inflow of bad odors from the drain pipe opening/closing device 107 of the drain pipe 105. The water level measurement value signal 12 in the catch basin 103 is introduced into the successive approximation calculator C2, where the water level measurement value signal 12 is compared with the preset control lower limit water level value L0, and the water level measurement value signal 12 is When it falls below the management value L0, an abnormality signal 02U is introduced to the display D2 to display the detected content. The abnormality signal 02U is separately introduced into the refilling command device Co2. Then, the replenishing water command device Co2 introduces the replenishing water operation command signal ST2 to the replenishing water supply device 203-3 provided in the reservoir of the water collecting basin 103 to start the water supply operation.

Thus, when the water level of the catch basin 103 rises and the upper limit water level measuring device 203-2 senses the upper limit water level, the upper limit water level value signal 13 is introduced into the comparator C3 and compared with the preset management upper limit water level value U0. Then, an arrival signal 03U indicating that the water level measurement signal value 13 matches the management upper limit water level value U0 is introduced to the display D2 to display the detected content. The arrival signal 03U is separately introduced into the refilling command device Co3. Then, the replenishment command device Co3 transmits a replenishment operation stop command signal ST3 to the replenishment water supply device 203-3 to stop the water supply operation. By repeating these steps, the inside of the water collecting basin 103 is always kept above the lower limit water level, and the water sealing function and deodorizing function of the water sealing and deodorizing cover 106 are maintained. In addition to preventing the inflow into the food pretreatment process, an insect repellent effect from the drainpipe can be reliably obtained.

On the other hand, a BOD (biological oxygen demand) biosensor S2 developed by NARO is installed in the drainage pipe 105 . The biosensor S2 measures the oxygen concentration in the drain pipe 105 and introduces the oxygen concentration signal 14 into the comparator C4 to compare it with the preset oxygen concentration control standard value 02. When the standard value 02 is exceeded, the comparator C4 introduces an abnormal signal 04U to the display D3 to display 105 drain pipes and the detected oxygen concentration. The abnormality signal 04U is separately introduced into the cleaning command device Co4. Then, the cleaning command device Co4 transmits a cleaning operation start command signal ST4 to the No. 3 high-pressure water jet cleaning device 206 provided in the drain pipe 105, operates for a predetermined time, performs cleaning and decontamination, and dilutes the concentration of waste water contamination. to restore the oxygen concentration to the normal state and eliminate the bad odor.

Further, the No. 1 organic soil tester S 3 is arranged on the central bottom surface of the duster grooves 102 - 1 to 102 - 4 , and the No. 2 organic soil tester S 4 is installed in the water collecting basin 103 .
Each of the No. 1 organic contamination detector S3 and the No. 2 organic contamination detector S4 detects the degree of contamination over time in the arrangement portion and introduces contamination inspection signals 15 and 16 to the respective comparators C5 and C6. The comparators C5 and C6 compare the values of the contamination inspection signals 15 and 16 with the preset contamination control standard values 03 and 04, and if the detection signals 15 and 16 exceed the contamination control standard values 03 and 04, it is abnormal The signals 05U and 06U are introduced to the displays D4 and D5 to display the name of the duster groove, the name of the organic matter contamination tester, the degree of organic matter contamination inspection, and the like.

On the other hand, the comparator C5 receives the abnormality signal 05U and separately transmits the cleaning operation start command signal ST5 to the NO2 high-pressure water injection cleaning device 205 provided in the water collection basin 103 via the cleaning operation start command device Co5, and High-pressure water is jetted to decontaminate and wash the inside of the water collecting basin 103 to deodorize bad odors.
Further, the comparator C6 transmits a cleaning operation start command signal ST6 to the No. 1 high-pressure water jet cleaning device 204 provided in the duster grooves 102-1 to 102-4 through the cleaning operation start command device Co6, and operates for a predetermined time. Then, the insides of the duster grooves 102-1 to 102-4 are decontaminated and washed to remove the odor.

In addition to the display of each abnormal signal, the indicators D1 to D5 also issue alarms, and also display in detail the operating states of the devices that operate according to the commands from the command devices Co1 to Co6. Allows remote management.
Further, the cleaning means described above is not limited to the deodorant spray cleaning device, the deodorant chemical injection water spray cleaning device, and the high-pressure water jet cleaning device. It is possible to quickly and accurately wash and decontaminate contaminants in drainage channels.

With these configurations, the situation where a foul odor is emitted in the drainage pit device 100 is automatically detected, the abnormality is grasped, and the deodorant spray cleaning device 201 and the water spray cleaning device 202 or the water level in the basin is maintained. By properly operating the device 203, the odor is removed and an insect repellent effect from the drain pipe is obtained.
Therefore, the maintenance and management of food sanitation in food factories, catering centers, school lunches, hospitals, restaurant kitchens, etc. are automatically and quickly performed to ensure all sanitation and safety.

INDUSTRIAL APPLICABILITY The drainage pit device of the present invention exhibits the above-described excellent effects, and therefore can be applied to floor drainage pit devices in food factories, catering centers, hospitals, restaurant kitchens, etc., and thus contributes to the food industry. There are a lot of things.

100: Drainage pit device 101: Floor surface 102-1 to 102-4: Multiple duster grooves 103: Water collection basin 104: Interceptor basket 105: Drainage pipe 106: Water-sealed deodorant cover 107: Drainage pipe opening and closing device S1: Odor sensor S2: Biosensor S3: No. 1 organic soil detector S4: No. 2 organic soil detector 11: Odor concentration signal 12: Water level measurement value signal 13: Upper limit water level measurement value signal 14: Detected oxygen concentration value signal 15, 16: Dirt inspection signal C1, C2, C3, C4, C5, C6: Comparators D1, D2, D3, D4, D5: Display 01: Odor concentration control standard value 02: Oxygen concentration control standard value 03, 04: Dirt control standard value L0 : Control lower limit water level value U0: Control upper limit water level value 01U, 02U, 03U, 04U, 05U, 06U: Abnormal signal Co1: Deodorization command device Co2: Replenishment command device Co3: Replenishment command device Co4: Cleaning operation start command device Co5: Cleaning Operation start command device Co6: Cleaning operation start command device 201: Deodorant spray cleaning device 202: Deodorant chemical injection water spray cleaning device 203: Water level adjustment device 203-1: Lower limit water level measuring device 203-2: Upper limit water level measuring device 203- 3: Replenishing water supply device 204: No. 1 high-pressure water jet cleaning device 205: NO2 high-pressure water jet cleaning device 206: No. 3 high-pressure water jet cleaning device ST1: Cleaning operation command signal ST2: Watering operation start command signal ST3: Watering operation stop command signal ST4: Cleaning operation start command signal ST5: Cleaning operation start command signal ST6: Cleaning operation start command signal

Claims (1)

A pit apparatus in which a water collecting trough is connected to a duster groove into which soiled water from a food water treatment plant flows, a blocking basket is provided on the top of the water collecting trough, and a drain pipe is connected to the bottom through a water-sealed and deodorizing cover. a sensor for detecting odors generated by contaminants contained in polluted water is arranged in the water collecting basin or the blocking basket, and a malodor detection signal is introduced from the sensor and the malodor detection value is set in advance. A comparator is provided for comparing with a control standard value and transmitting an abnormal signal when the detected malodor value exceeds the control standard value. is provided, a deodorant spraying device or a water spray cleaning device is provided that introduces an abnormality signal from the comparator into the trap cage and sprays for a predetermined time, and the water level in the catchment basin according to the abnormality signal above the level of the water seal deodorant cover.