JP2019019535A - Water storage facility and circulation filtering method of water storage facility - Google Patents

Abstract

To prevent a suction accident of human to inlet port of water storage facility.SOLUTION: The water storage facility includes a compound gauge 10 for measuring the coupled pressure inside the drain pipe 62 connected to the inlet 61a of the water tank, and when the gauge pressure is a negative pressure equal to or higher than the threshold value, the driving of the circulation pump 71 which is connected to the drain pipe 62 is stopped. The water storage facility is, for example, a recycling pool or a bathtub, and when a part of a human body comes in contact and is sucked with the inlet port provided on the inner wall surface or the bottom surface of the water storage facility, the water suction pressure applied to the body is eliminated or reduced.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a water storage facility such as a pool and a bathtub, and a circulating filtration method for the water storage facility.

  There have been reports of fatal accidents due to human bodies sucking into intakes (ends of circulating water piping) provided on the inner wall and bottom of water storage facilities such as a circulating pool. As a technique for reducing the water absorption pressure applied to a body when a part of the body comes into contact with the body, a technique for bending a region where a water passage hole of an intake lid is formed is known (Patent Literature). 1). However, when the lid of the intake port of Patent Document 1 is attached to or removed from the inner wall surface of the pool, it is difficult to support the lid by firmly grasping the lid by hand because most of the shape of the lid is curved. Therefore, there is a problem that the work burden is large.

Japanese Unexamined Patent Publication No. 2011-1726

  The present invention has been made paying attention to the above-mentioned problem, and is a water storage facility capable of suppressing a human body suction accident to the intake (circumferential water piping end) and its circulation filtration method (operation method). The purpose is to provide.

  In order to achieve the above object, the first aspect of the present invention includes: (a) a water storage tank; and (b) a drain pipe having one end connected to an intake port provided on the inner wall surface of the water storage tank. , (C) a circulation pump connected to the other end of this drainage pipe, draining the water in the water tank through the drainage pipe and circulatingly filtering it, and (d) measuring the combined pressure in the drainage pipe The gist of the present invention is a water storage facility equipped with a control device that stops the driving of the circulation pump when the compound pressure measured by the compound meter is a negative pressure equal to or greater than a threshold value.

  The second aspect of the present invention includes: (a) a water storage tank; (b) a first drainage pipe having one end connected to a first drainage opening provided on the inner wall surface of the water storage tank; c) a second drainage pipe having one end connected to a second drainage opening provided on the inner wall surface of the water storage tank and the other end connected to the other end of the first drainage pipe; d) a common drain pipe with one end connected to the connection point of the first drain pipe and the second drain pipe, and (e) a first drain pipe, a second drain connected to the other end of the common drain pipe. A circulation pump that drains and circulates and filters the water in the water storage tank through the drainage pipe and the common drainage pipe, and (f) a first that is provided in the first drainage pipe and controls movement of drainage flowing through the first drainage pipe. 1 electromagnetic valve; (g) a second electromagnetic valve provided in the second drainage pipe for controlling the movement of the drainage flowing through the second drainage pipe; and (h) the first electromagnetic valve and the second electromagnetic valve. And summarized in that a water storage facility comprising a controller for a complementary control to open and close at a predetermined period.

  The third aspect of the present invention automatically drives the circulation pump connected to the drainage pipe when it detects that the coupled pressure in the drainage pipe between the water storage tank and the circulation pump is a negative pressure equal to or higher than a threshold value. The gist is that it is a circulating filtration method for a water storage facility to be stopped.

  The gist of the fourth aspect of the present invention is a circulation filtration method for a water storage facility in which two drainage pipes are provided in the water storage facility, and the drainage by the two drainage pipings are alternately and alternately driven.

  According to the water storage facility according to the present invention, it is possible to suppress an accident that the human body is sucked into the intake port (circulated water piping end).

It is a block diagram which illustrates a part of the water storage facility according to the first embodiment in cross section. It is a flowchart explaining the drainage method using the water storage equipment which concerns on 1st Embodiment. It is sectional drawing which illustrates typically the water storage installation which concerns on the 1st modification of 1st Embodiment. It is sectional drawing which illustrates typically the water storage installation which concerns on the 2nd modification of 1st Embodiment. It is a block diagram which illustrates typically the water storage equipment which concerns on 2nd Embodiment seeing from an upper surface.

  Next, first and second embodiments of the present invention will be described with reference to the drawings. In the following description of the drawings, the same or similar parts are denoted by the same or similar reference numerals. However, it should be noted that the drawings are schematic, and the relationship between the thickness and the planar dimensions, the ratio of the thickness of each layer, and the like are different from the actual ones. Therefore, specific thicknesses and dimensions should be determined in consideration of the following description. Moreover, it is a matter of course that portions having different dimensional relationships and ratios are included between the drawings. In addition, members denoted by the same or similar reference numerals in the drawings have an equivalent structure, and description of overlapping portions will be omitted as appropriate when each member is described.

  Further, the following first and second embodiments exemplify apparatuses and methods for embodying the technical idea of the present invention, and the technical idea of the present invention is a material of a component. The shape, structure, arrangement, etc. are not specified as follows. The technical idea of the present invention can be variously modified within the technical scope defined by the claims described in the claims. Furthermore, the directions of “left and right” and “up and down” in the following description are merely definitions for convenience of description, and do not limit the technical idea of the present invention. Thus, for example, if the paper surface is rotated 90 °, “left and right” and “upper and lower” are read interchangeably, and if the paper surface is rotated 180 °, “left” becomes “right” and “right” becomes “left”. Of course.

--First embodiment--
<Structure of water storage facilities>
The water storage facility according to the first embodiment includes a water storage tank (pool) and a drain pipe 62 having one end connected to an intake (circulation water pipe end) 61a provided on the inner wall surface of the water storage tank. And a circulation pump 71 connected to the other end of the drainage pipe 62 and draining and circulatingly filtering the water in the water storage tank via the drainage pipe 62, and a combined pressure (gauge pressure) in the drainage pipe 62. ) And a control device 76 that stops the driving of the circulation pump 71 when the compound pressure measured by the compound meter 10 is a negative pressure equal to or higher than a threshold value. Prepare. The compound meter 10 is provided on the suction port side of the intake port (circulation water pipe end) 61a, and whether the compound pressure on the suction port side is positive or negative is set to atmospheric pressure = 0 Pa (reference value). It is a gauge pressure gauge to measure.

  The water storage facility is, for example, a swimming water storage facility as shown in the cross-sectional view of FIG. 1, and the intake 61a is used for circulating and filtering the water of the water storage facility. As shown in FIG. 1, the water storage facility includes a water tank housing 60 having a water tank bottom surface 64 and a water tank inner wall surface 63 that rises vertically from the periphery of the water tank bottom surface 64 to the bottom surface of the water tank. 64 and the water storage area 70 are formed by storing water inside the concave portion surrounded by the inner wall surface 63 of the water storage tank. In the water storage area 70, a human can swim. Although illustration is omitted, a dust collection device and a sterilization device are connected to the output side of the circulation pump 71 as necessary. And after carrying out necessary treatments such as removal of fine solids such as dust and chemicals necessary for sterilization treatment and ultraviolet irradiation, it is discharged to the water storage tank via a discharge pipe etc. not shown. .

  The inner wall 63 of the water storage tank is provided with a substantially rectangular parallelepiped recess that opens to the water storage region 70 side as a drainage basin 61, and one surface of the opening of the drainage basin 61 on the water storage region 70 side is the intake 61a of the water storage facility. I am doing. The water storage facility includes the lid 1z shown in FIG. 1 attached to the intake port 61a. The intake port 61a has a substantially square shape with a side of about 30 cm when viewed from the water storage region 70 side. One end of a drainage pipe 62 that is provided inside the water storage tank housing 60 and sucks water in the water storage area 70 is opened on the surface of the drainage tank 61 opposite to the intake port 61a. The other end of the drain pipe 62 is connected to the circulation pump 71.

  The circulation pump 71 is connected to a motor 72 that drives the circulation pump 71. The motor 72 is connected to a power source 74 via a switch 73, and power is supplied from the power source 74 to the motor 72. On / off of the switch 73 is controlled by a control device 76 connected to the switch 73. A timer 75 is connected to the switch 73. The timer 75 is connected to the control device 76, and the operation of the timer 75 is controlled by the control device 76.

  Gauge pressure data from the compound meter 10 is input to the control device 76 over time. As shown in FIG. 1, the control device 76 can be configured by a processor or the like including a pressure comparison unit 761, a power cut-off unit 762, and a timer activation unit 763. Therefore, the pressure comparison unit 761, the power cut-off unit 762, the timer start unit 763, and the like can be configured by hardware resources of a computer system such as an arithmetic logic circuit, but are not limited to hardware resources that execute digital processing. . That is, if the compound pressure measured by the compound meter 10 is a negative pressure equal to or higher than the threshold value, the controller 76 can be an analog electric circuit as long as it has a function of stopping the driving of the circulation pump 71. A mechanical mechanism may be used. When the control device 76 is configured by an arithmetic logic circuit or the like, the pressure comparison unit 761 of the control device 76 compares the input gauge pressure data value with a threshold value. For example, the threshold value is set according to the magnitude of the negative pressure generated when a person sucks the intake port 61a. The threshold value can be appropriately set by empirical measurement or simulation.

  In the case where the control device 76 is configured by an arithmetic logic circuit or the like, the power cut-off unit 762 of the control device 76 sets the switch 73 between the motor 72 and the power source 74 when the gauge pressure is a negative pressure equal to or higher than a threshold value. The system is turned off and the driving of the circulation pump 71 connected to the drain pipe 62 is stopped. The timer starting unit 763 of the control device 76 starts the timer 75 after the switch 73 is turned off. When the timer 75 is activated, the switch 73 between the motor 72 and the power source 74 is automatically turned on after a certain delay time has elapsed. By starting the timer 75, the power supply to the motor 72 is restored, and the drive of the circulation pump 71 is automatically restarted.

--- Circulating filtration method for water storage facilities--
First, it is assumed that the water storage facility is in operation such as during swimming, the switch 73 between the motor 72 and the power source 74 is on, and the circulation pump 71 is driven. Next, in step S <b> 1 in FIG. 2, the gauge pressure in the drain pipe 62 is constantly measured using the compound meter 10.

  Next, in step S2, the measured gauge pressure is compared with a threshold value using the pressure comparison unit 761 of the control device 76. Next, in step S3, when the measured gauge pressure is less than the threshold value, the process returns to step S1, and the measurement of the gauge pressure in the drain pipe 62 is repeated again. On the other hand, when a person sucks into the intake 61a of the water storage facility, the gauge pressure in the drainage pipe 62 rapidly increases in the negative pressure direction. In step S3, when the measured gauge pressure is a negative pressure equal to or higher than the threshold value, the process proceeds to step S4, where the switch 73 is turned off and the driving of the circulation pump 71 is stopped using the power interrupting unit 762 of the control device 76. .

  Next, in step S5, the timer 75 is started using the timer starting unit 763 of the control device 76. Then, after a certain delay time has elapsed, in step S6, the switch 73 is automatically turned on, the power supply to the motor 72 is automatically restored, and the driving of the circulation pump 71 is automatically resumed. Thereafter, in step S7, when the circulation filtration of the water storage facility is continued, the process returns to step S1, and the processing after the measurement of the gauge pressure in the drain pipe 62 is repeated again. On the other hand, when the circulation filtration of the water storage facility is stopped, the circulation filtration method of the water storage facility according to the first embodiment is finished.

  According to the water storage facility according to the first embodiment, when the gauge pressure in the drainage pipe 62 that is attracted to the intake port 61a suddenly fluctuates to the negative pressure side, the circulation pump 71 is automatically driven. Stop. Therefore, the suction force applied to the sucked person can be eliminated, and the sucked person can be easily detached from the entrance 61a, and a sucking accident can be prevented quickly and reliably.

  Further, according to the water storage facility according to the first embodiment, after the driving of the circulation pump 71 is stopped, the timer 75 is started, and the driving of the circulation pump 71 is automatically restarted after a certain delay time has elapsed. The time during which the circulation filtration of the water storage facility is interrupted can be suppressed.

<First Modification>
In the water storage facility according to the first embodiment, as shown in FIG. 3, a dust collection wire mesh or the like is provided in the vicinity of the intake 61 a inside the drainage pipe 62 between the water storage tank and the pump. May be used simultaneously with the lid 1z to purify the circulating water. For example, the thickness t of the internal screen 80 can be set to about 25 mm, and the mesh width can be set to about 50 mm.

<Second Modification>
As shown in FIG. 4, in addition to the internal screen 80, a filtration device 81 such as an auto strainer having a scraping function is separately provided between the intake 61a of the water storage facility and the circulation pump 71 to clean the circulating water. Can be further improved. In the area | region downstream from the circulation pump 71 of the drain piping 62 in FIG. 4, a chlorine disinfection apparatus etc. can be provided, for example.

--Second Embodiment--
As shown in FIG. 5, the water storage facility according to the second embodiment includes a water storage tank and first drain openings (61a1, 61a2, 61b1, 61b2) provided on the inner wall surface 63 of the water storage tank. One end is connected to the first drain pipe 77 connected to one end and the second drain opening (61c1, 61c2, 61d1, 61d2) provided in the inner wall surface 63 of the water storage tank, A second drainage pipe 78 having the other end connected to the other end of the drainage pipe 77, and a common drainage pipe 79 having one end connected to a connection point between the first drainage pipe 77 and the second drainage pipe 78. The circulation pump 71 is connected to the other end of the common drainage pipe 79, drains the water in the water storage tank through the first drainage pipe 77, the second drainage pipe 78, and the common drainage pipe 79, and circulates and filters the water. And provided in the first drain pipe 77 and flows through the first drain pipe 77. A first electromagnetic valve 82 that controls the movement of the waste water, a second electromagnetic valve 83 that is provided in the second drain pipe 78 and controls the movement of the waste water flowing through the second drain pipe 78, the first electromagnetic valve 82, 2 is provided with a control device 76a that controls to open and close the electromagnetic valve 83 in a complementary manner at a constant period.

  When the first electromagnetic valve 82 and the second electromagnetic valve 83 open and close complementarily, the first intake ports 61a1, 61a2, 61b1, and 61b2 and the second intake ports 61c1, 61c2, 61d1, and 61d2 are in a constant cycle during drainage. It is switched and operated. In the water storage facility according to the second embodiment, as in the water storage facility according to the first embodiment, a continuous pressure (gauge pressure) in a pipe connected to the intake port of the water storage facility is measured. It is possible to stop the circulation pump connected to the pipe when the gauge pressure is a negative pressure higher than the threshold, but the automatic stop control function of the circulation pump by the coupled meter is always necessary. is not.

  Each of the four first intake ports 61a1, 61a2, 61b1, 61b2 forming the first drain opening (61a1, 61a2, 61b1, 61b2) is one of the four inner surfaces 63 of the water storage tank. Are arranged in parallel at equal intervals. Branch pipes as shown by dotted lines in FIG. 5 are connected to the first intake ports 61a1, 61a2, 61b1, and 61b2, respectively. Further, the four branch pipes are connected to one first drain pipe 77, and the other end of the first drain pipe 77 is a T-shape between the other end of the second drain pipe 78 and the common drain pipe 79. It extends towards the branch. As described above, the first drain pipe 77 may be provided with the first compound meter 10a.

  On the other hand, the four second intake ports 61c1, 61c2, 61d1, 61d2 forming the second drainage openings (61c1, 61c2, 61d1, 61d2) are all of the four inner surfaces 63 of the water storage tank. The first intake ports 61 a 1, 61 a 2, 61 b 1, 61 b 2 are arranged in parallel at equal intervals on the surface facing the surface on which the first intake ports 61 a 1, 61 a 2, 61 b 1, 61 b 2 are provided. Branch pipes are connected to the second intake ports 61c1, 61c2, 61d1, and 61d2, respectively, as in the case of the first intake ports 61a1, 61a2, 61b1, and 61b2. The four branch pipes are connected to one second drain pipe 78, and the other end of the second drain pipe 78 is a T-shaped branch between the other end of the first drain pipe 77 and the common drain pipe 79. It extends toward. The second drain pipe 78 may be provided with a second compound meter 10b.

  The first drain pipe 77 and the second drain pipe 78 merge at a T-shaped branch in front of the circulation pump 71 and are connected to the circulation pump 71 via a common drain pipe 79. Although not shown in the drawings, a dust collection device and a sterilization device are connected to the output side of the circulation pump 71 as necessary, and after the removal and sterilization processing of the dust, the discharge pipe not shown in the drawing. It is the same as that of 1st Embodiment that it discharges to a water storage tank via etc.

  Since the configuration in the case of providing the first compound meter 10a and the second compound meter 10b has a structure equivalent to the compound meter 10 shown in FIG. The first compound meter 10a and the second compound meter 10b are gauges measured inside the first drain pipe 77 and the second drain pipe 78 in the same manner as the couple meter 10 shown in FIG. When the pressure is a negative pressure equal to or higher than the threshold value, the driving of the circulation pump 71 is stopped. In FIG. 5, devices such as a control device, a motor, a switch, and a power supply that stop driving the circulation pump 71 are not shown for the sake of space, but the first coupled meter 10a and the second coupled meter 10a are omitted. When providing the growth meter 10b, the water storage facility according to the second embodiment is provided with devices equivalent to the control device 76, the motor 72, the switch 73, the power source 74, and the like shown in FIG.

  In the use of the water storage facility according to the second embodiment, for example, during the circulation filtration of the water storage facility, the first intake ports 61a1, 61a2, 61b1, 61b2 and the second intake ports 61c1, 61c2, 61d1, 61d2 are complemented. Switch wastewater and perform circulation filtration. For example, first, when using the first intake ports 61 a 1, 61 a 2, 61 b 1, 61 b 2, the first electromagnetic valve 82 provided in the first drain pipe 77 is opened and the second solenoid pipe provided in the second drain pipe 78 is opened. The water storage facility is operated while the electromagnetic valve 83 is complementarily closed to perform circulation drainage. During the operation when the first electromagnetic valve 82 is open, the compound pressure in the first drain pipe 77 is measured by the first compound meter 10a.

  According to the water storage facility according to the second embodiment, the first intake ports 61a1, 61a2, 61b1, 61b2 and the second intake ports 61c1, 61c2, 61d1, 61d2 are automatically switched at regular intervals. Complementary use for drainage and circulation filtration. That is, immediately after the suction from one intake group disappears automatically at a fixed period, the suction from the other intake group is started in a complementary manner. Further, since the first intake ports 61a1, 61a2, 61b1, 61b2 and the second intake ports 61c1, 61c2, 61d1, 61d2 are arranged to face each other, the fixed period is set to a time within several minutes. If this is done, the direction of drainage is automatically reversed by complementary switching of the intake groups in a certain period, so that a person who has sucked into the intake before the person stops breathing or swallows a large amount of water. It is possible to leave. Therefore, in addition to preventing a suction accident, the time during which the circulation filtration of the water storage facility is interrupted can be significantly reduced, and the circulation filtration of the water storage facility can be executed efficiently.

  Further, according to the water storage facility according to the second embodiment, since the plurality of intakes included in one drainage opening are drained simultaneously, the suction pressure required per intake port is reduced. In the unlikely event that a person approaches the intake port, the remaining intake port is drained, so that the suction pressure normally does not reach that of a human, so accidents can be prevented.

  In the configuration in which the first compound meter 10a and the second compound meter 10b are provided, first, the first compound meter 10a is in operation when the first electromagnetic valve 82 is open. Then, the combined pressure in the first drain pipe 77 is measured. When the gauge pressure measured by the first compound meter 10a suddenly increases and exceeds the threshold value, the circulation pump 71 is driven as described in the first embodiment. It can also be stopped. Thereafter, the first electromagnetic valve 82 provided in the first drainage pipe 77 is closed, and the second electromagnetic valve 83 provided in the second drainage pipe 78 is opened, and the second intake ports 61c1, 61c2, 61d1, 61d2 are opened. Use for drainage and circulation filtration. And the circulation filtration of a water storage facility is continued, measuring the compound pressure in the 2nd drainage piping 78 with the 2nd compound meter 10b.

  In the configuration in which the first compound meter 10a and the second compound meter 10b are provided, the first intake ports 61a1, 61a2, 61b1, 61b2 and the first intake ports 61a1, 61a2, 61b1, 61b2 are linked to the emergency stop state of the circulation pump 71. A mode in which the two intake ports 61c1, 61c2, 61d1, 61d2 are switched and selectively used for drainage and circulation filtration is also possible. That is, it is also possible to start the suction from the other intake group immediately after the circulation pump 71 is in an emergency stop state and the suction from the one intake group disappears. Even in such a mode of operation, in addition to preventing a suction accident, the time during which the operation for circulating and filtering the water storage facility is interrupted can be greatly reduced, and the circulation filtering of the water storage facility can be performed efficiently.

<Other embodiments>
Although the present invention has been described with reference to the first and second embodiments, it should not be understood that the description and drawings constituting a part of this disclosure limit the present invention. From this disclosure, it should be understood that various alternative embodiments, examples, and operational techniques will become apparent to those skilled in the art. For example, the water storage facility of the present invention can be configured by partially combining the structures described in the first and second embodiments. As described above, the present invention includes various embodiments and the like that are not described in the present specification and drawings, and the technical scope of the present invention is specified by the invention according to the scope of claims reasonable from the above description. It is determined only by.

1z Lid 10, 10a, 10b Compound meter 60 Housing 61 Drainage 61a Intake (end of circulating water piping)
61a1-61d1, 61a2-61d2 Inlet 62 Drainage pipe 63 Inner wall surface 64 Bottom surface 70 Water storage area 71 Circulation pump 72 Motor 73 Switch 74 Power supply 75 Timer 76, 76a Control device 761 Pressure comparison unit 762 Electric power cutoff unit 763 Timer activation unit 77 First 1 drainage pipe 78 second drainage pipe 79 common drainage pipe 80 internal screen 81 filtration device 82 first electromagnetic valve 83 second electromagnetic valve

Claims (7)

A water tank,
A drainage pipe having one end connected to an inlet provided on the inner wall surface of the water tank;
A circulation pump connected to the other end of the drainage pipe, draining the water in the water storage tank through the drainage pipe, and circulatingly filtering the water;
A compound meter for measuring a compound pressure in the drain pipe;
A control device that stops driving the circulation pump when the compound pressure measured by the compound meter is a negative pressure equal to or higher than a threshold;
A water storage facility comprising: A motor connected to the circulation pump;
A power supply for supplying power to the motor;
A switch provided between the motor and the power source and controlled by the control device;
Further comprising
The water storage facility according to claim 1, wherein the circulation pump is stopped by turning off the switch. A timer for turning on the switch after a certain delay time elapses;
The water storage facility according to claim 2, wherein the operation of the circulating pump is automatically restarted by the operation of the timer. A water tank,
A first drainage pipe having one end connected to a first drainage opening provided on the inner wall surface of the water tank;
A second drainage pipe having one end connected to a second drainage opening provided on an inner wall surface of the water storage tank, and the other end connected to the other end of the first drainage pipe;
A common drainage pipe having one end connected to a connection point between the first drainage pipe and the second drainage pipe;
A circulation pump connected to the other end of the common drain pipe, draining the water in the water storage tank through the first drain pipe, the second drain pipe and the common drain pipe, and circulatingly filtering the water;
A first electromagnetic valve provided in the first drain pipe and controlling movement of drainage flowing through the first drain pipe;
A second electromagnetic valve provided in the second drainage pipe for controlling movement of drainage flowing through the second drainage pipe;
A control device for performing control to open and close the first electromagnetic valve and the second electromagnetic valve in a complementary manner at a constant cycle;
A water storage facility comprising: A first compound meter for measuring a compound pressure in the first drain pipe;
A second compound meter for measuring a compound pressure in the second drainage pipe;
Further comprising
5. The water storage according to claim 4, wherein when the compound pressure in the first drain pipe or the compound pressure in the second drain pipe is a negative pressure equal to or higher than a threshold value, driving of the circulation pump is stopped. Facility.   A water storage system that automatically stops driving the circulation pump connected to the drainage pipe when it is detected that the combined pressure in the drainage pipe between the water storage tank and the circulation pump is a negative pressure equal to or higher than a threshold value. Circulating filtration method for equipment.   A circulation filtration method for a water storage facility, wherein two drainage pipes are provided in the water storage facility, and drainage by the two drainage pipings are alternately and alternately driven.

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