JP2013066818A - Air-mixed water-discharging device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an air-mixed water-discharging device capable of preventing water from intruding in an air passage during stop of the device, and capable of removing dirt in a water flow path.SOLUTION: In the air-mixed water-discharging device which takes in air by pressure reduction and feeds an air-mixed water to a pump 11, a pressure-reduction part 10 is provided between a water suction port 12 and a pump 11, and the pipe of an air passage 131 is connected to the pressure-reduction part 10. Besides, the device is provided with an air valve 14 for controlling an air flow volume in the pipe of the air passage 131, and also with a controlling means which monitors the operating condition of the pump 11, opens the air valve 14 during stop of the pump 11 and closes the valve 14 after completion of the stop of the pump 11.

Description

  The present invention relates to an air mixed water discharger.

  The fine bubbles generated in the hot water can enhance the effect of bathing, and the air mixed water spouting device that can generate the air mixed water in which such fine bubbles are generated is incorporated in the fine bubble generation bathtub Widely recognized as a jet bath or the like (see, for example, Patent Document 1).

  FIG. 4 shows a configuration example of a conventional air mixed water spouting device incorporated in such a fine bubble generating bathtub. In this configuration example, the decompression unit 10 is provided upstream of the pump 11, and the decompression unit 10 and the water inlet 12 are piped by a water flow path 121.

  Further, the decompression unit 10 and the air intake port 13 are piped by an air flow path 131, and the check valve 4 is provided in an intermediate part of the air flow path 131.

  And the water taken in from the water inlet 12 by the driving | operation of the pump 11 and the air taken in from the air inlet 13 are mixed within the pressure reduction part 10, and the air mixed water with which the gas melt | dissolved in water is produced | generated, It is sent from the decompression unit 10 to the pump 11 through the piping of the air mixing water channel 101 and sent to the air mixing water channel 112 connected to the discharge side of the pump 11.

JP 2010-269292 A

  In the air mixed water spouting device having such a configuration and operation, when the pump 11 is stopped to stop the operation of the air mixed water spouting device, the suction pressure decreases as the pump 11 stops and the check valve 4 Suddenly occludes.

  Since the gas flowing in the operating air flow path 131 as shown by the arrow in FIG. 5A is expanded by the suction pressure during operation of the pump 11, the check valve 4 is stopped when the pump 11 is stopped. The volume is reduced by the sudden blockage of the water, and the water in the decompression section 10 enters the air flow path 131 as shown by the arrow in FIG.

  Then, there is a problem that dirt or the like in the water that has entered the air flow path 131 accumulates as scale or dust in the check valve 4 or the air flow path 131 and the check valve 4 or the air flow path 131 is blocked. It was.

  Further, if the opening area of the water inlet 12 is reduced due to accumulation of scale and slime as the number of operating times and operating time of the air mixed water discharger increases, the suction pressure applied to the air flow path 131 increases, and the pump 11 is stopped. Since the volume change of the air at the time increases, there is a problem that the risk of blockage of the air flow path 131 due to scale and dust increases.

  The present invention has been made in view of the circumstances as described above. By preventing water from entering the air flow path when the air-mixing water discharger is stopped, the air flow path caused by scales or garbage is provided. An object of the present invention is to provide an air mixed water discharger that can eliminate the risk of clogging and can eliminate the accumulation of scale and slime in the water inlet and the water flow path.

The present invention has the following features in order to solve the above problems.

  That is, the air mixed water spouting device of the present invention is an air mixed water spouting device that takes in air by depressurization and supplies air mixed water to the pump, and includes a depressurizing unit between the water supply port and the pump. The air flow pipe is connected, the air flow pipe is provided with an air valve that adjusts the air flow rate, the pump operating status is monitored, the air valve is opened when the pump is stopped, and the pump stops. And a control means for closing the air valve.

  The air mixed water spouting device of the present invention is an air mixed water spouting device that takes in air by depressurization and supplies air mixed water to the pump. The air mixed water spouting device includes a depressurizing unit between the water supply port and the pump. The air flow pipe was connected, the air flow pipe was provided with an air valve to adjust the air flow rate, the pump operating condition was monitored, and the air valve was closed for a predetermined time before the pump stop operation Then, the air valve is opened again, the pump stop operation is started, and the control means for closing the air valve after the pump stop is completed is provided.

  According to the present invention, by preventing water from entering the air flow path when the air mixed water discharger is stopped, the risk of blockage of the air flow path due to scale or dust is eliminated, and the water inlet and water flow It is possible to provide an air mixed water spouting device capable of eliminating the scale and slime accumulation in the road.

It is the block diagram which illustrated the air mixed water discharging apparatus of this invention. It is the graph which showed the outline | summary of 1st Embodiment of the air mixed water discharging apparatus of this invention. It is the graph which showed the outline | summary of 2nd Embodiment of the air mixed water discharging apparatus of this invention. It is the block diagram which illustrated the conventional air mixed water discharging apparatus. (A) is the schematic which shows the state in the air flow path at the time of the driving | operation of the conventional air mixed water discharging apparatus, (B) is the state in the air flow path at the time of the stop of the conventional air mixed water discharging apparatus. FIG.

  An embodiment of an air mixed water discharge device of the present invention will be described with reference to the drawings. FIG. 1 is a configuration diagram illustrating an air mixed water spouting device of the present invention.

  The air-mixed water discharge device of the present invention includes a hollow decompression unit 10 and a pump 11 for introducing air-mixed water from the decompression unit 10, and a water flow path for allowing water to flow into the decompression unit 10 from a water inlet 12. 121 is piped. The decompression unit 10 is provided with an air flow path 131 for taking in air from the air intake port 13.

  An air valve 14 that adjusts the air flow rate and an air valve control unit 141 that controls the opening and closing of the air valve 14 are provided in the middle portion of the air flow path 131 that pipes the decompression unit 10 and the air intake port 13. Is provided.

  The decompression unit 10 and the pump 11 are piped by an air-mixed water channel 101, and the air-mixed water is sent out through an air-mixed water channel 112 having one end connected to the discharge side of the pump 11.

  Further, the pump 11 is provided with a pump operation monitoring unit 111 that monitors the operation state of the pump 11 for operation and stop, and information on the pump operation monitoring unit 111 is sent to the air valve control unit 141. The air valve 14 is opened and closed based on the above.

  Below, operation | movement of the air valve opening / closing control apparatus of the air mixed water discharging apparatus of this invention is demonstrated in detail.

  The operation of the air valve opening / closing control device of the air mixed water spouting device of the present invention controls the opening / closing of the air valve 14 based on the operation of the pump 11.

  An outline of the first embodiment of the air mixed water discharger of the present invention will be described with reference to FIGS. 1 and 2.

  As shown in FIG. 1, water is supplied from the water inlet 12 to the decompression unit 10 as the pump 11 starts operating, and the flow rate and pressure of the water increase as the number of rotations of the pump 11 increases. And the water which flowed in the pressure reduction part 10 is mixed with the air taken in from the air intake port 13, and air mixed water is produced | generated.

  The generated air-mixed water is sent from the decompression section 10 to the pump 11 through the air-mixed water flow path 101 and is sent out from the air-mixed water flow path 112 having one end connected to the discharge side of the pump 11 to be in a steady operation state. .

  When the operation of the pump 11 is stopped to stop the operation of the air mixed water spouting device, the operation of the air mixed water spouting device is changed from the steady operation to the stop operation as shown in the graph of FIG. At this time, the operation state of operation and stop of the pump 11 is monitored by the pump operation monitoring unit 111.

  When the rotation speed of the pump 11 is decelerated, the suction pressure of the air in the decompression unit 10 gradually decreases, and when the operation of the pump 11 is completely stopped, the air flow path 131 becomes atmospheric pressure. At this time, information that the pump 11 is completely stopped from the pump operation monitoring unit 111 is sent to the air valve control unit 141, and the air valve 14 is closed based on this information.

  Since the air valve 14 is closed when the pump 11 stops completely and the inside of the air flow path 131 is in an atmospheric pressure state, the air mixed water spouting device of the present invention has the air flow path 131 when the pump 11 is stopped. There is no water intrusion.

  Therefore, water does not come into contact with the air flow path 131 or the air valve 14, and dirt in the water does not become scales or dust and accumulate in the air flow path 131 or the air valve 14.

  Next, the outline of the second embodiment of the air mixed water discharger of the present invention will be described with reference to FIGS. In addition, since the structure of the air mixing water discharging apparatus of 2nd Embodiment is the same as that of the 1st Embodiment shown in FIG. 1, description is abbreviate | omitted.

  In the second embodiment, as shown in FIG. 3, the air valve 14 is opened again after the air valve 14 is closed for a predetermined time before the stop operation of the pump 11. Then, the air valve 14 is opened and the pump 11 is stopped.

  The suction pressure of water decreases until the air valve 14 is opened after the air valve 14 is closed for a predetermined time before the pump 11 is stopped. And the amount of water absorption increases and the flow velocity of the water in the water channel 121 increases.

  This increase in the flow rate of the water in the water channel 121 provides a cleaning effect that prevents the scales and slime from adhering to the water inlet 12 and the water channel 121.

  Moreover, the clean state in the water inlet 12 and the water flow path 121 can always be maintained by performing this operation every time the air mixed water discharge device is stopped.

  When the air valve 14 is opened and the operation of the pump 11 is stopped after the predetermined time has elapsed, the operation of the air mixed water spouting device is changed from the steady operation state to the stop operation state as shown in FIG. At this time, the operation state of operation and stop of the pump 11 is monitored by the pump operation monitoring unit 111.

  When the operation of the pump 11 is decelerated, the suction pressure of the air in the decompression unit 10 gradually decreases, and when the operation of the pump 11 is completely stopped, the air flow path 131 becomes atmospheric pressure. Information that the pump 11 is completely stopped from the pump operation monitoring unit 111 at this time is sent to the air valve control unit 141, and the air valve 14 is closed based on this information.

  The pump 11 is stopped, and from the start of the stop operation state, the pump 10 is completely stopped by the complete stop information of the pump 10 of the pump operation monitoring unit 111, and the air flow path 131 is in an atmospheric pressure state. The operation of closing the air valve 14 at the time is the same as in the first embodiment.

  Therefore, water does not come into contact with the air flow path 131 or the air valve 14, and dirt in the water does not become scales or dust and accumulate in the air flow path 131 or the air valve 14.

  In the air mixed water spouting device of the present invention, for example, an air pressure detecting means for detecting the air pressure in the air flow path 131 is provided, and a detection signal of the air pressure detecting means is sent to the pump operation monitoring unit 111, and the signal of the air pressure detecting means is It may be determined that the atmospheric pressure has been reached, and this information may be sent to the air valve control unit 141 to close the air valve 14.

  In the description of the present invention, the fluid taken into the decompression unit 10 has been described as water, but hot water other than water may be used.

  Moreover, the air mixed water discharging apparatus which this invention makes object is not limited to the thing of the structure shown in FIG. Various configurations and structures such as details are possible.

DESCRIPTION OF SYMBOLS 10 Pressure reducing part 101 Air mixed water flow path 11 Pump 111 Pump operation monitoring part 112 Air mixed water flow path 12 Water intake port 121 Water flow path 13 Air intake port 131 Air flow path 14 Air valve 141 Air valve control part 4 Check valve

Claims (2)

  In an air mixed water spouting device that takes in air by depressurization and supplies air mixed water to a pump, a depressurizing unit is provided between the water supply port and the pump, and an air flow path pipe is connected to the depressurizing unit. An air valve that adjusts the air flow rate was installed in the piping of the pump, and the operation state of the pump was monitored, the air valve was opened when the pump was stopped, and control means was provided to close the air valve after the pump stop was completed. An air mixed water discharge device characterized by the above.   In an air mixed water spouting device that takes in air by depressurization and supplies air mixed water to a pump, a depressurizing unit is provided between the water supply port and the pump, and an air flow path pipe is connected to the depressurizing unit. An air valve that adjusts the air flow rate is installed in the pipe, and the operating state of the pump is monitored, the air valve is closed for a predetermined time before the pump stop operation, the air valve is opened again, and the pump stop operation is performed. And a control means for closing the air valve after the pump stop is completed.

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