JP2665571B2 - Filtration control method - Google Patents

Description

Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention mainly relates to filtering and circulating bath water for business use and removing the circulating water for continuous long-time operation.
The present invention relates to the technical field of a method for controlling a temperature and a water level of a bathtub by dusting, filtering, heating and sterilizing as needed . Conventionally, a large-scale instrument in which indicating instruments, adjustments, and switches attached to an instrument and a detecting device are installed at respective locations and operated manually while monitoring them, or the instruments are concentrated in one place by wiring. The operation panel is used, and the constant assignment of an operator is indispensable.In the filtration process, a cartridge type using a synthetic resin filter cloth is frequently used, or the three- stage operation of filtration, backwashing and washing is performed. A five-way valve method is used, and a direct heating method of an ON-OFF method by electric heating is mainly used as a heating method . [0003] However, many of the conventional devices have a large size and a complicated structure, and the operator needs to frequently monitor the operation status of the devices or instruments.
Because the equipment that is distributed and arranged was constantly patrolled, or controlled by a large centralized control panel,
A great deal of labor and time was required for installation and maintenance of the equipment. In addition, the cartridge system in the filtration process requires replacement every two to six months, requiring a large maintenance cost, and a five-way valve which performs a multi-stage operation in the filter.
Since the method is difficult to operate at high pressure, the combined use of a pressure switch is indispensable, and the electric heating method has the drawback that the heating process has a large delay and the temperature distribution in the tank is difficult to be uniform. . According to the present invention, continuous operation for a long time is possible.
Not occupied as operation panel was allowed internal sequence control program constitute an extremely compact shape, and device machine of
It is an object of the present invention to significantly reduce initial costs and running costs by simplifying the structure of a vessel . [0006] In order to solve the above problems, a lithium battery is first used to extend the guarantee period of an instrument signal, and a three-way valve is used instead of a five-way valve in the conventional filtration operation. filtration of the smooth control operation of the combination of the pressure switch as required, also filled with rigid filtering material of the surface of the place relatively lightweight cartridge scheme by using a
With peracetic machine, whether the temperature adjustment to the bypass, to control whether to circulate as heating and hot water by the heat exchanger
And to perform I, size of the apparatus, the unmanned performed using a printed circuit board with a built-in modifiable programs,
A neon lamp display makes it easy to see the operating status at a glance and enables continuous operation for a long time. According to the present invention, in the above-described apparatus, the timer is cleared, a weekly schedule is input, a predetermined temperature and a water level are set, the boiler is operated in advance, and then all the pumps and valves are switched to automatic positions. When the power is turned on, the filtration circulation pump, heat exchange pump, and chemical injection pump all operate according to the program, and maintain the specified hot water temperature and water level as long as the power supply and water supply source do not become abnormal.
It has the feature that continuous operation can be performed for about one week by circulating hot water . FIG. 1 is a diagram showing an outline of the present invention, FIG. 2 is a diagram showing a panel portion thereof, and FIG. 3 is a diagram showing wiring of the panel. Water level in bathtub 1 is level sensor 1
1 and if it drops, it passes through the makeup water valve 22
Hot water heated to an appropriate temperature by the mixing valve 21
Temperature supplemented aims to maintain water level and the bathtub 1 hot water detected by the temperature sensor 12, it is maintained by Ri predetermined temperature to select the bypass or heating circuit by NoboriAtsushisetsu valve 23. The hot water in the bathtub 1 passes through the dust remover 2 from below to remove hair, towel debris and the like.
Is sent to the filter 4 to remove suspended matters and the like. Meanwhile, the sterilizing device 3 mainly injects a sodium hypochlorite-based chemical solution. The adjusted hot water is supplied, but the hot water that has passed through the filter 4 is directly heated by the temperature-raising switching valve 23 when heating is not required, and is passed through the heat exchanger 5 when heating is required. The water is refluxed upward from the bottom of the bathtub 1 to make the distribution uniform and improve the stirring efficiency. The filter 4 temporarily suspends the filtration according to a time set by the timer 401A, floats a hard porous ceramic body on the surface as a filtering material through hot water from the reverse direction, and discharges adhering substances for a predetermined time. The system is again switched to the filtration mode, the operation proceeds to the filtration operation, and thereafter the filtration and backwashing operations are alternately repeated according to the set time, whereby the system can be operated continuously for a long time. Hot water for heat exchange enters the hot water storage tank 6 from the boiler 7 and is transferred to the heat exchanger 5 by the heat exchange pump 32.
Back after replacing Oite heat, hot water of the hot water storage tank 6 enters the boiler 7 through the hot water supply pump 33, again the hot water tank is heated
Ru return to the 6. A part of the hot water in the hot water storage tank 6 is supplied through the mixing valve 21 through the mixing valve 21 to recover the water level drop as necessary.
2 to the bathtub 1 . The excess hot water is returned to the boiler 7 via the hot water pump 34, and the excess hot water is returned to the water supply tank 8 so that a constant amount of hot water can always be secured. When an abnormal situation such as idling, failure, or lowering of the water level occurs, the alarm lamp 404 is turned on and the buzzer 405 sounds , but the operation is continued for a certain period unless an abnormality occurs . According to the control panel which has been miniaturized as described above,
Correctable programmed wiring enables continuous operation for a long time with almost no failure, simplification of piping and wiring, power outage assurance time is about 10 times longer than before, and control by using printed circuit board The effects of the system failure are greatly reduced and the operation and maintenance of the system can be performed without requiring special training. That is, a relatively lightweight filter medium is used as the filter means.
Filtration by a three-way valve in a filter 4 having a packed bed, reverse
Long-term continuous operation is possible by repeating washing periodically
It has the feature of . The temperature rise switching valve 23 bypasses or adds heat.
Select a heat circuit and supply make-up water heated to an appropriate temperature.
By maintaining the hot water temperature and water level within the specified range
The liquid heat exchange method reduces the heat transfer delay when heating hot water.
In addition, it eliminates uneven temperature distribution and reduces bather discomfort.
It has the characteristic of being eliminated .

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a diagram showing an entire system of the present invention. FIG. 2 is a diagram of a panel showing an arrangement of instruments used in the present invention. FIG. 3 is a diagram showing wiring on a printed circuit board of the panel. [Description of Signs] 1 bathtub 2 dust remover 4 filter 5 heat exchanger 11 level sensor 12 temperature sensor 22 makeup water valve 23 heating switch valve 31 filtration circulation pump 40 control panel 401 timer 402 temperature controller 403 power switch 406 reverse Valve wash switch 407 Make-up water valve switch 408 Heating changeover valve switch 409 Filtration and circulation pump switch 410 Sterilization chemical injection pump switch 411 Heat exchange pump switch 401A Backwash timer 401B Sterilization chemical injection timer 401C Refill water timer 401D Relay circuit

Claims (1)

(57) [Claims] A. Bathtub, filtration pump, filtration backwash valve, makeup water valve, ascent
Hot water boiler circuit including hot water circulation valve and circulation pump and water level
Filter with control panel to connect sensor and temperature sensor
In the circulation system, B. B. a time-series control program including temperature and water level feedback control; Set temperature and water level and schedule weekly schedule
After inputting the ram and activating the hot water boiler, D. Turn on the power and suction the bath water with a filtration pump,
E. passing through a filtration or backwashing line by a timer of a filtration backwash valve ; The circulating water is turned into a hot water boiler by the signal of the temperature sensor.
It poured into the road, F. The make-up water valve is opened and closed by the signal of the water level sensor.
And operating the apparatus while maintaining the temperature and the water level at the set values continuously for a long time.