JP6993626B2 - Carbonated water generator - Google Patents

Description

The present invention relates to a carbonated water generator capable of adjusting the carbon dioxide gas concentration of carbonated water used for hair washing, facial treatment, etc. at a hairdressing salon or the like.

For example, the invention according to the following Patent Document 1 has been proposed as an example of a device for controlling the carbon dioxide concentration of carbonated water. This Patent Document 1 discloses an apparatus capable of producing carbonated water having a constant carbon dioxide gas concentration at low cost and by a simple operation regardless of the flow rate of raw water. Specifically, correlation data between the flow rate of raw water and the carbon dioxide gas concentration of carbonated water obtained by the supply pressure of carbon dioxide gas is recorded in advance, and the flow rate of raw water is detected during the production of carbonated water. Then, a carbonated water producing apparatus is disclosed in which the supply pressure of carbon dioxide gas is adjusted so that the obtained carbonated water has a target carbon dioxide gas concentration based on the detected flow rate and the recorded correlation data.

Japanese Unexamined Patent Publication No. 2001-293342

In the carbonated water production apparatus proposed in Patent Document 1, the amount of raw water mixed with carbonic acid is measured and grasped by using a flow meter (flow sensor) in order to obtain a desired concentration of carbonated water. The amount of carbonic acid mixed is controlled from the amount of raw water. Examples of the flowmeter that can be adopted include various examples such as an impeller type, a differential pressure type, a radio wave, an ultrasonic wave, a vortex flowmeter, a positive displacement type, and a thermal type. However, although the flowmeters mentioned in these examples are highly convenient, it is necessary to install a flowmeter in the carbonated water supply line through which carbonated water flows. Therefore, the presence of the flow meter may cause flow rate and pressure loss. In addition, the flow meter is constantly consumed in contact with running water in the carbonated water supply line, and moreover, it requires space, so that the device tends to be large, which is a problem.

Many other carbonated water production equipment for hairdressing and beauty cannot adjust the carbonic acid concentration. A carbonated water producing device for hairdressing and beauty is applied, for example, when performing hairdressing and beauty treatment, especially coloring, and by discharging carbonated water to hair coated with an alkaline coloring agent, the hair is squeezed. It is close to sex and has the effect of reducing hair damage caused by coloring agents. However, if the carbonated water concentration cannot be adjusted and a high concentration of carbonated water is discharged, the carbonated water reacts excessively with the coloring agent, and the intended coloring cannot be performed and the hair is discolored. Problems such as were pointed out.

The present invention has been proposed in view of the above circumstances, and provides a carbonated water generating device capable of adjusting the carbon dioxide gas concentration of carbonated water used for hair washing, facial treatment, etc. at a hairdressing salon, etc., even if a flow meter is not required. The purpose is.

The carbonated water generator according to the present invention has a carbonated water supply source, a carbonated water supply line in which one is connected to a water supply source and a discharge means at the tip of the other, and a sense portion provided in the carbonated water supply line. A pressure sensor that measures the pressure generated by the resistance of the discharge means to the water flow and a carbonated water amount adjusting unit that adjusts the amount of carbonated water supplied from the carbonated water supply source to the carbonated water supply line are provided. The amount of the carbonated water is adjusted by the carbon dioxide amount adjusting unit based on the pressure measurement value measured by the pressure sensor, and the concentration-controlled carbonated water is discharged from the discharge means.

In particular, the carbonated water generator is characterized by comprising a pressure increasing means for increasing the pressure. The surface of the pressure increasing means has irregularities, and the carbon dioxide gas is agitated by the irregularities.

Further, the check valve is provided on the water supply source side of the sense portion in the carbonated water supply line. Further, it is characterized in that a carbon dioxide gas supply pipe for supplying the carbon dioxide gas is connected between the check valve and the discharge means in the carbonated water supply line.

In addition, the carbon dioxide amount adjusting unit is characterized in that an adjustment reference value, which is a reference for determining whether or not to adjust the amount of the carbon dioxide gas, can be input to the carbon dioxide amount adjusting unit in advance. A plurality of modes are stored in the carbon dioxide amount adjusting unit, and the amount of carbon dioxide gas adjusted by the carbon dioxide amount adjusting unit changes based on the selection of one of the modes.

The carbonated water generator according to the present invention has a configuration in which the concentration of carbonic acid gas in the discharged carbonated water is adjusted based on a pressure measurement value obtained from a pressure sensor having a sense portion in the carbonated water supply line. Therefore, since the pressure sensor itself is not installed in the carbonated water supply line, it is possible to eliminate or reduce the flow rate loss and the pressure loss due to the presence of the pressure sensor. In addition, there is no problem that the pressure sensor is quickly consumed. Pressure sensors are generally smaller than flow rate measuring means such as flow rate sensors, and since their installation requires only minor improvements to existing equipment, they are also advantageous in that they do not require space for new installation. ..

The present invention is configured to include a pressure increasing means for increasing the pressure in the carbonated water supply line in addition to the pressure generated by the resistance of the discharge means to the water flow. When the flow rate is small and the resistance in the discharge means is very small, the pressure in the carbonated water supply line is amplified by the pressure boosting means, and the pressure can be measured accurately, whereby the carbon dioxide gas in the carbonated water can be measured accurately. The concentration can be easily controlled. Further, if the surface of the pressure increasing means is formed with irregularities and the carbon dioxide gas is agitated by the irregularities, the carbon dioxide gas can be efficiently dissolved in the running water.

Since the present invention has a configuration in which a check valve is provided on the water supply source side of the sense portion in the carbonated water supply line, it is possible to prevent the backflow of carbonated water, and there is no flow loss and the carbon dioxide gas is efficiently used. Can be dissolved by stirring in running water. It also leads to an accurate grasp of the resistance of the discharge means based on the water flow of carbonated water.

The present invention has a configuration in which an adjustment reference value, which is a reference for determining whether or not the carbon dioxide amount adjusting unit adjusts the amount of carbon dioxide gas, can be input to the carbon dioxide amount adjusting unit in advance. As a result, a standard for adjusting the amount of carbon dioxide can be set, so that the concentration of carbon dioxide in the carbon dioxide water can be controlled more accurately. Further, the present invention has a configuration in which a plurality of modes are stored in the carbon dioxide amount adjusting unit, and the amount of carbon dioxide gas adjusted by the carbon dioxide amount adjusting unit changes based on the selection of one of the modes. Therefore, for example, it is possible to roughly set the carbon dioxide concentration such as the high concentration mode, the medium concentration mode, and the low concentration mode in advance, and then control the carbon dioxide concentration of the carbonated water based on the pressure measurement value. Therefore, it is possible to provide carbonated water having an appropriate carbon dioxide gas concentration for each application.

It is a block diagram explaining the schematic structure of the carbonated water generation apparatus which concerns on this invention. It is a partial cross-section main part explanatory drawing explaining the outline of the carbonated water generation part which is a main part in the carbonated water generation apparatus which concerns on this invention in a part cross section. It is a flowchart explaining the flow until the carbon dioxide amount adjusting part determines the adjustment reference value which becomes the standard whether or not the amount of carbon dioxide gas is adjusted. It is a flowchart explaining the flow which controls the carbon dioxide gas concentration of the carbonated water based on the pressure measurement value, that one is selected from the plurality of modes stored in the carbonic acid amount adjustment unit.

Hereinafter, an embodiment of the carbonated water generator according to the present invention will be described with reference to the drawings. This embodiment is merely an example embodying the configuration of the present invention, and the present invention can make various design changes as long as it does not deviate from the matters described in the claims.

As shown in FIG. 1, the carbonated water generating device X according to the present invention comprises an apparatus main body 1 provided with a carbon dioxide gas supply source (cylinder) 11 and raw water W which is water or hot water, and is composed of, for example, a boiler or the like. It has a hot water supply device 2 as a water supply source. Further, a water channel 31 which is a flow path of the raw water W and a structure incorporated in the water channel 31, the carbon dioxide gas G supplied from the apparatus main body 1 is mixed with the raw water W and dissolved to obtain the carbonated water S. It has a carbonated water supply line 3 including a carbonated water generating unit 32. The tip of the carbonated water supply line 3 is connected to the discharge means 4. Specifically, the discharge means 4 includes a shower hose 41 and a shower head 42 provided in a bowl (not shown) for washing hair and the like. The tip of the carbonated water supply line 3 is connected to the shower hose 41 via a pipe provided in the bowl.

Further, the carbonated water generation device X has a foot switch 5 capable of determining whether the user discharges the carbonated water S from the discharge means 4 or the raw water W by operating the user's feet or the like. I have. For example, when the foot switch 5 is turned on, the carbonated water generating device X discharges the carbonated water S whose carbon dioxide gas G concentration is controlled through the control by the control board 15 described later from the discharging means 4. When the foot switch 5 is turned off, the raw water W is discharged from the discharge means 4 as it is.

The main body 1 of the apparatus is a pressure sensor on the main body side that measures the pressure of the cylinder 11, the gas passage 13 that is the flow path of the carbon dioxide gas G supplied from the cylinder 11 via the regulator 12, and the pressure of the carbon dioxide gas G in the gas passage 13. It is composed of 14. Further, the device main body 1 is input with a pressure measurement value of carbon dioxide gas G measured by the main body side pressure sensor 14, an operation signal from the foot switch 5, a pressure measurement value measured by the supply line side pressure sensor described later, and the like. A control board 15 is provided as a carbon dioxide amount adjusting unit. Further, the solenoid valve 16 controlled by the control board 15 and the orifice 17 provided adjacent to the solenoid valve 16 are provided.

The main body side pressure sensor 14 measures the pressure of the carbon dioxide gas G supplied from the cylinder 11 to the gas passage 13 through the regulator 12. As the pressure sensor 14 on the main body side, a known one can be adopted. The cylinder 11 and the regulator 12 may be installed inside or outside the apparatus main body 1. The control board 15 includes a storage unit 151 that stores data used for arithmetic processing, and a control unit 152 that serves as a place for arithmetic processing.

As the first function of the control unit 152, the control board 15 makes the discharge amount of carbonic acid gas G to be mixed with the raw water W uniform per unit time based on the pressure measurement value output from the main body side pressure sensor 14. As a result, the opening and closing of the solenoid valve 16 is controlled.

Further, the control board 15 is provided on the main body 1 of the apparatus and is also input when the switch of the foot switch 5 is turned on to determine how much the carbonic acid gas G concentration in the carbonated water S is set. The control unit 152 performs processing based on the input of the mode selection switch. Specifically, as a second function of the control unit 152, an electromagnetic valve is used to control the concentration of carbon dioxide gas G corresponding to, for example, high concentration, medium concentration, and low concentration as each input mode. Controls the opening and closing of 16. The control board 15 controls the opening operation of the solenoid valve 16 only when there is an operation command (switch on) by the foot switch 5.

In the present invention, in the water channel 31 through which the raw water W discharged from the hot water supply device 2 passes, a water stop valve 31a is provided between the hot water supply device 2 and the carbonated water generation unit 32. The flow rate of the raw water W passing through the water channel 31 can be adjusted by the water stop valve 31a. Further, a check valve 33 is provided at the inlet portion 32a of the carbonated water generating portion 32 arranged at a position advanced from the water stop plug 31a to the water channel 31. The check valve 33 can prevent the carbonated water S generated in the carbonated water generating portion 32 from flowing back in the direction of the hot water supply device 2.

The carbonated water generation unit 32 is a tubular structure made of metal or synthetic resin, which is provided along the water channel 31 and integrated with the water channel 31. As shown in FIG. 2, the carbonated water generating portion 32 has an inlet portion 32a, a first hole portion 32b, a second hole portion 32c, and a water channel on the discharge means 4 side continuous with the water channel 31 on the hot water supply device 2 side. A continuous outlet portion 32d is formed at 31. As described above, the check valve 33 is provided at the inlet portion 32a. The sense portion 34a of the supply line side pressure sensor 34 that measures the pressure generated by the resistance of the discharge means 4 to the water flow of the carbonated water S is connected to the first hole portion 32b. A carbon dioxide gas supply pipe 35 for guiding the carbon dioxide gas G discharged from the apparatus main body 1 is connected to the second hole portion 32c. Further, the outlet portion 32d is closed to prevent the fluid from passing through the outlet portion 32d, thereby amplifying the pressure (water pressure) of the carbonated water S generated in the carbonated water generating portion 32 and increasing the pressure to stir the carbonated water S. A pressure-increasing stirring component 36 as a means is housed.

The pressure sensor 34 on the supply line side may be provided on or outside the structure of the carbonated water generating portion 32. However, it is not preferable to dispose the pressure sensor 34 on the supply line side in the water channel 31. This is because the pressure sensor is generally smaller than the flow rate sensor, but the presence of the pressure sensor 34 on the supply line side may cause a flow rate loss or a pressure loss. There is a possibility that the pressure sensor 34 on the supply line side will be consumed quickly.

The pressure sensor 34 on the supply line side measures the pressure generated by the resistance of the discharge means 4 to the water flow of the carbonated water S at the sense portion 34a. The pressure (pressure measurement value) sensed at the sense portion 34a is output to the control board 15 of the apparatus main body 1. As a third function of the control unit 152, the control board 15 determines the discharge amount of the carbonic acid gas G to the carbonated water supply line 3 based on the pressure measurement value output from the pressure sensor 34 on the supply line side. Specifically, the opening and closing of the solenoid valve 15 is controlled so that the amount of carbon dioxide G per unit mixed with the raw water W becomes a predetermined amount corresponding to the pressure measurement value. The predetermined amount corresponding to the pressure measurement value is stored in advance in the storage unit 151 of the control board 15, as will be described later.

The carbon dioxide gas supply pipe 35 is connected to the second hole portion 32c between the first hole portion 32a and the outlet portion 32d to which the sense portion 34a is connected. As a result, the carbonic acid gas G induced from the apparatus main body 1 is mixed with the raw water W downstream of the sense portion 34a in the flow path 31. Further, a check valve 33 is provided at the inlet portion 32a of the carbonated water generating portion 32. Therefore, the pressure measurement value sensed at the sense portion 34a is a value that faithfully reflects what is generated by the resistance of the discharge means 4 to the water flow of the carbonated water S. The carbon dioxide gas supply pipe 35 is also provided with a check valve 351 in the pipe, thereby preventing the carbon dioxide gas G, water, and the like from flowing back into the apparatus main body 1 (see FIG. 1).

The pressure-increasing stirring component 36 housed in the outlet portion 32d is provided so as to cover most of the opening of the outlet portion 32d, and the carbonated water S generated by mixing the raw water W and the carbon dioxide gas G passes through the outlet portion 32d. In some cases, it plays a role in increasing the pressure (water pressure). As the pressure-increasing stirring component 36, for example, a known static mixer can be adopted. In particular, it is preferable to adopt a static mixer having a shape in which irregularities are formed, because the carbonic acid gas G is agitated by the irregularities and the carbonic acid gas G can be better dissolved. The pressure-increasing agitation component 36 makes it possible to increase or amplify the substantial pressure of the discharge means 4 with respect to the generated carbonated water S, and to detect the pressure in this state as a pressure measurement value at the sense portion 34a. Therefore, even if the actual pressure change is slight, the pressure-increasing agitation component 36 can be grasped by the control board 15 as a clear change, so that the carbonic acid gas G concentration in the carbonated water S can be increased or decreased. It is possible to facilitate control such as making it.

The tip of the water channel 31 through which the carbonated water S discharged from the outlet portion 32d of the carbonated water generating portion 32 passes is connected to a shower hose 41 provided in the bowl. Since the shower head 42 is continuous with the shower hose 41, the carbonated water S is discharged from the shower head 42 to the outside. At this time, the discharged carbonated water S has a concentration of carbonic acid gas G controlled based on the first function, the second function, and the third function of the control board 15. Therefore, in the carbonated water generation device X according to the present invention, the carbonated water S containing the carbonated gas G having a desired concentration can be obtained in the carbonated water generating unit 32, and the carbonated water S having a controlled carbonic acid gas G concentration is showered. It can be discharged from the head 42 to the outside.

Here, the relationship between the first function, the second function, and the third function in the control board 15 will be briefly described. First, the control unit 152 of the control board 15 carbonates a constant amount of carbon dioxide gas G per unit time (for example, a constant amount referred to as a low concentration in this embodiment) by the first function from the on command by the foot switch 5. Supply to the water supply line 3. The second function performs a process of increasing or decreasing the amount of carbonic acid gas G per unit time to be supplied through the first function based on the mode selected from the mode selection switch of the apparatus main body 1. For example, if a low concentration is selected, the amount does not increase or decrease, if a medium concentration is selected, the amount is twice the low concentration, and if a high concentration is selected, the amount is three times the low concentration. It controls the opening and closing of the electromagnetic valve 16 and supplies the amount of carbon dioxide gas G to the carbonated water supply line 3.

Further, the third function performs a process of adjusting the amount of carbon dioxide G per unit time determined by the second function based on the pressure measurement value detected by the pressure sensor 34 on the supply line side. For example, if the pressure measurement value detected by the pressure sensor 34 on the supply line side is equal to or lower than a predetermined pressure, the solenoid valve 16 is controlled so as not to supply carbonic acid. If the pressure measurement value detected by the pressure sensor 34 on the supply line side is equal to or higher than the predetermined pressure and lower than the second predetermined pressure, the amount of carbon dioxide obtained by multiplying the amount of carbon dioxide G per unit time determined by the second function by the coefficient α is carbon dioxide. The electromagnetic valve 16 is controlled so as to supply the gas G. Further, if the pressure is equal to or higher than the second predetermined pressure, the solenoid valve 16 is controlled so as to supply the amount of carbon dioxide G obtained by multiplying the amount of carbon dioxide G per unit time determined by the second function by the coefficient β. The coefficients α and β are both positive numbers, and the relationship of α <β is established. Further, it is also possible to increase the pressure value which is a critical point at which the amount of carbon dioxide gas G supplied to the third predetermined pressure, the fourth predetermined pressure and the like should be changed, and set these pressure values on the control board 15.

Hereinafter, in the present embodiment, the present invention relates to a mechanism for controlling the amount of carbon dioxide gas G mixed with the raw water W by the carbonated water generating unit 32 to a predetermined amount by the control board 15 based on the pressure measurement value of the pressure sensor 34 on the supply line side. 3 and the flowchart shown in FIG. 4 will be described.

First, based on FIG. 3, the condition setting in the control board 15 up to the control flow in which the control board 15 reaches the control flow for determining the amount of carbonic acid gas G mixed with the raw water W in the carbonated water generation unit 32 will be described.

As shown in FIG. 3, a control board is used to determine the resistance value of the shower hose 41, which is the discharge means 4 connected to the carbonated water generator X according to the present invention, to the unique water flow and the resistance value of the shower head 42 to the unique water flow. It is input to the storage unit 151 of 15 and stored. In this embodiment, a type A shower hose (resistance value: P1a), a type B shower hose (resistance value: P1b), a type A shower head (resistance value: P2a), and a type B shower head (resistance value: P1b). P2b) is prepared. In the control board 15, a total of four pressure flow coefficients (N1, N2, N3, N4) are determined as the discharge means 4 based on these resistance values, and these are stored in the storage unit 151.

The pressure flow coefficient (N1 to N4) is an adjustment reference value that is a standard for determining whether or not to adjust the amount of carbonic acid gas G supplied by the control board 15. In addition, in FIGS. 3 and 4, Pa means the supply line side when the flow rate per unit time is aL (liter) with respect to the registered shower hose 41 or shower head 42 of type A and type B. It refers to the pressure unit of the pressure (measured pressure value) sensed by the pressure sensor 34.

Next, the carbonated water generator X is placed in a bowl provided with a shower hose 41 and a shower head 42 in which a sense portion 34a of the pressure sensor 34 on the supply line side is arranged in the carbonated water generation unit 32 and each unique resistance value is stored. Connecting. After performing preprocessing such as zero point adjustment of the control board 15, the control unit 152 of the control board 15 performs the following processing.

As step 1 (S1), the control unit 152 determines whether or not the connected shower hose 41 and shower head 42 are registered. If YES in step 1, it is determined in step 2 (S2) whether the shower hose is of type A and the shower head is of type A.

If the step 2 is YES, N1 is output from the storage unit 151 as an adjustment reference value, and the process proceeds to a control flow (FIG. 4) for determining the amount of carbon dioxide gas G based on N1.

If step 2 is NO, it is determined in step 3 (S3) whether the shower hose is class A and the shower head is class B, and if YES, N2 is output from the storage unit 151 as an adjustment reference value and N2. The process proceeds to a control flow (FIG. 4) for determining the amount of carbon dioxide G based on the above.

If step 3 is NO, it is determined in step 4 (S4) whether the shower hose is class B and the shower head is class A, and if YES, N3 is output from the storage unit 151 as an adjustment reference value and N3. The process proceeds to a control flow (FIG. 4) for determining the amount of carbon dioxide G based on the above.

When step 4 is NO, since the shower hose is type B and the shower head is type B, N4 is output from the storage unit 151 as the adjustment reference pressure value, and the control flow for determining the amount of carbon dioxide gas G based on N4 (FIG. Proceed to 4).

When step 1 is NO, the control unit 152 measures the adjustment reference value (for example, the flow rate discharged from the shower at the time of assembly) preset at the time of assembling the carbonated water generator X, and measures the shower head and the shower hose. Nn stored in the storage unit 151 (when step 1 is NO in FIG. 3, for example, the flow rate of the raw water W is an arbitrary constant n), which is a coefficient set based on the resistance value of. The pressure unit appearing at this time is kPn) is output from the storage unit 151, and the process proceeds to a control flow for determining the amount of carbon dioxide gas G based on Nn. In this case, the control unit 152 determines that carbonic acid is not supplied if, for example, the pressure measurement value measured by the pressure sensor 34 on the supply line side is XkPn or less obtained by multiplying Nn by a constant x. If the pressure measurement value measured by the pressure sensor 34 on the supply line side is higher than XkPn and is YkPn or less obtained by multiplying Nn by another constant y, it is determined to supply a predetermined first carbonic acid amount. If it is higher than YkPn, it is determined to supply a predetermined amount of secondary carbonic acid. The carbonated water generator X opens and closes the solenoid valve 16 based on these decisions. The constants x and y are both positive numbers, and the relationship of x <y is established. Y is a value larger than X, and therefore, the supply amount of the second carbonic acid amount is larger than that of the first carbonic acid amount.

Next, a control flow in which N1 to N4 are output from the storage unit 151 and input to the control unit 152 and the amount of carbonic acid gas G is determined based on N1 to N4 will be described with reference to FIG.

First, in the control unit 152, one of N1 to N4 (for example, N1) is set, while the pressure is actually measured by the pressure sensor 34 on the supply line side, and the pressure measurement value is output. Then, the control unit 152 performs a process (selection of high density or low density) according to the mode selected from the mode selection switch by the second function as step 5 (S5).

In the example assuming that N1 is set in the control unit 152 when a high concentration is selected, the control unit 152 obtains the pressure measurement value measured by the pressure sensor 34 on the supply line side by multiplying N1 by a constant x. If it is SkPa or less, it is determined not to supply carbonic acid. If the pressure measurement value measured by the pressure sensor 34 on the supply line side is higher than SkP a and is TkP a or less obtained by multiplying N1 by another constant y, it is determined to supply a predetermined tertiary carbonic acid amount. If it is higher than TkP a , it is determined to supply a predetermined amount of tetracarbonate. The carbonated water generator X opens and closes the solenoid valve 16 based on these decisions. The constants x and y are both positive numbers, and the relationship of x <y is established. T is a value larger than S, and therefore, the supply amount of the fourth carbonic acid amount is larger than that of the third carbonic acid amount.

Further, in the example assuming that N1 is set in the control unit 152 when a low concentration is selected, in the control unit 152, the pressure measurement value measured by the pressure sensor 34 on the supply line side is N1 multiplied by a constant x. If it is less than or equal to the obtained SkPa, it is determined not to supply carbonic acid. If the pressure measurement value measured by the pressure sensor 34 on the supply line side is higher than SkP a and is TkP a or less obtained by multiplying N1 by another constant y, it is determined to supply a predetermined fifth carbonic acid amount. If it is higher than TkP a , it is determined to supply a predetermined amount of sixth carbonic acid. In the carbonated water generator X, the solenoid valve 16 opens and closes based on these determinations. The constants x and y are both positive numbers, and the relationship of x <y is established. T is a value larger than S, and therefore, the supply amount of the sixth carbonic acid amount is larger than that of the fifth carbonic acid amount. In addition, the supply amount of the third carbonic acid amount is larger than that of the sixth carbonic acid amount.

In the example in which N2, N3, and N4 are set in the control unit 152, the same processing is performed, the solenoid valve 16 is opened and closed based on these determinations, and the amount of carbon dioxide gas G is adjusted. That is, in the present invention, the adjustment reference value (N1 to N4), which is a reference for determining whether or not the control board 15 adjusts the amount of carbon dioxide gas G, can be input in advance, and the adjustment reference value is used as a reference. In addition, it can be seen that the carbon dioxide gas G concentration in the carbonated water S can be controlled more accurately and flexibly. Further, a plurality of modes are stored in the control board 15, and by selecting one of these modes, the carbon dioxide gas G concentration in the carbonated water S can be changed. Thereby, for example, the carbon dioxide G concentration in the carbonated water S such as the high concentration mode, the medium concentration mode, and the low concentration mode can be roughly set in advance, and then the carbon dioxide G concentration based on the pressure measurement value can be controlled. , It is possible to provide carbonated water S having an appropriate carbon dioxide gas G concentration in various uses.

In the above embodiment, the pressure flow coefficient (N1 to N4, Nn) as an adjustment reference value, which is a standard for determining whether or not to adjust the amount of carbonic acid gas G supplied by the control substrate 15, is stored in advance in the storage unit 151. I explained an example that was memorized in. However, in the present invention, it is natural that the pressure flow coefficient (N) is actually manually input to the control board 15 and the carbonated water generation is performed while controlling the carbon dioxide gas G concentration in the carbonated water S based on the pressure flow coefficient (N). Is possible. Further, the resistance values of the shower hose and the shower head can also be actually manually input to the control board 15.

Although one embodiment of the present invention has been described above as an example, the present invention can be modified in various ways as long as it does not deviate from the matters described in the claims. For example, as described above, the carbonated water generator according to the present invention has a configuration in which the sense portion of the pressure sensor can sense the pressure generated by the resistance of the discharge means to the water flow in the carbonated water generating portion. , The main body can be provided outside the device. In the above embodiment, the configuration in which the mode selection switch is provided in the main body of the apparatus is illustrated, but the present invention is not limited to this, and for example, the foot switch may be provided with the mode selection switch. Further, it should be noted that the pressure increasing means is a means required when the pressure based on the discharging means is very small, and is not an essential configuration in the present invention. When the pressure increasing means is adopted, there is a possibility that a wide variety of shapes can be taken as long as sufficient stirring of the carbon dioxide gas G can be obtained. When examining the shape of the pressure increasing means, a preferable effect can be obtained by considering keeping the flow rate loss or the like to a minimum.

For example, regarding the shape of the pressure increasing means, it is preferable to adopt a static mixer having the following structure in the amplification of the pressure generated by the resistance of the discharging means to the water flow in the carbonated water supply line. That is, in the carbonated water supply line, a static mixer main body having a diameter larger than that of the flow path of the carbonated water supply line is arranged concentrically with the carbonated water supply line. The static mixer main body is composed of a main body cylindrical portion, an inlet side end face portion having an inlet attached to the end portion thereof, and an outlet side end face portion having an outlet. Then, a collision cylinder having an opening having a diameter equal to or larger than the diameter of the inflow port is fixedly stored in the mixer main body with the opening side facing the inflow port side, and the inside of the bottom surface portion of the collision cylinder. The structure is such that a large number of recesses are arranged in a portion, an inner surface portion of the end surface portion on the outlet side, an inner peripheral surface portion of the cylinder portion of the collision cylinder, an inner peripheral surface portion of the cylinder portion of the mixer body, and the like.

Due to this structure, the fluid that has flowed into the mixer body from the inflow port flows into the collision cylinder, collides with the bottom surface, reverses the direction of flow, and becomes a turbulent flow. A large vortex is generated. In addition, since the mixer body has a larger diameter than the fluid flow path, the fluid is decompressed in the mixer body, and the fluid that collides with the bottom surface and changes direction is pulled back, so that the fluid that enters sequentially near the inflow port and the fluid that enters sequentially. It collides with the backflowing fluid and is vigorously agitated and mixed. Further, the inner surface portion of the bottom surface of the collision cylinder, the inner surface portion of the inflow port side end surface hollow plate portion, the inner surface portion of the outlet side end surface hollow plate portion, the inner peripheral surface portion of the collision cylinder portion cylinder portion, and the mixer body cylinder portion. When the fluid collides with the recesses such as the inner peripheral surface, a large number of small vortices are generated to stir and mix the fluid, and a large vortex is generated as a whole to stir and mix, and the fluid flow is further increased. Disturb in a complicated way. Through these, the pressure generated from the discharge means can be effectively amplified.

In addition, although not shown, even in the control flow using the adjustment reference value (pressure flow coefficient: Nn) executed when the above step 1 is NO, the concentration is high, low, or medium depending on the mode selection switch. After selecting the concentration, it is possible to proceed with the flow for determining the predetermined amount of carbon dioxide to be supplied.

X ... Carbonated water generator 1 ... Device body 11 ... Cylinder (carbon dioxide gas supply source)
12 ・ ・ Regulator 13 ・ ・ Gas path 14 ・ ・ Main body side pressure sensor 15 ・ ・ Control board (carbonic acid amount adjustment part)
151 ・ Storage unit 152 ・ Control unit 16 ・ ・ Solenoid valve 17 ・ ・ Orifice 2 ・ ・ ・ Hot water supply device (water supply source)
3 ・ ・ ・ Carbonated water supply line 31 ・ ・ Water channel 31a ・ Water stop valve 32 ・ ・ Carbonated water generation part 32a ・ Inlet part 32b ・ First hole part 32c ・ Second hole part 32d ・ Outlet part 33 ・ ・ Check valve 34 ・ ・ Supply line side pressure sensor 34a ・ Sense part 35 ・ ・ Carbonated gas supply pipe 351 ・ Check valve 36 ・ ・ Pressure boosting stirring parts (pressure boosting means)
4 ... Discharge means 41 ... Shower hose 42 ... Shower head 5 ... Foot switch W ... Raw water G ... Carbon dioxide gas S ... Carbonated water

Claims (6)

Carbon dioxide source and
A carbonated water supply line, one connected to a water source and having a discharge means at the other end,
A pressure sensor that measures the pressure generated by the resistance of the discharge means to the water flow as a pressure measurement value at the sense portion provided in the carbonated water generation section of the carbonated water supply line.
A carbon dioxide amount adjusting unit that adjusts the amount of carbon dioxide gas supplied from the carbon dioxide gas supply source to the carbonated water generating unit, and
Equipped with
The amount of the carbon dioxide gas is automatically adjusted according to the pressure measurement value changed while the carbonated water is being discharged from the discharge means by the pressure measurement value and a predetermined value based on the resistance of the discharge means. The concentration of carbonated water is controlled .
A carbonated water generator characterized by that. A pressure increasing means for increasing the pressure is provided.
The carbonated water generator according to claim 1. Unevenness is formed on the surface of the pressure increasing means, and the carbon dioxide gas is agitated by the unevenness.
The carbonated water generator according to claim 2. A check valve is provided on the water supply source side of the sense portion in the carbonated water supply line.
The carbonated water generator according to any one of claims 1 to 3, wherein the carbonated water generator is characterized by the above. A carbon dioxide gas supply pipe for supplying the carbon dioxide gas is connected between the check valve and the discharge means in the carbonated water supply line.
The carbonated water generator according to claim 4. A water stop valve is provided between the water supply source and the carbonated water generating portion, and when the water stop valve is closed, the pressure measurement value becomes a predetermined value or less, and the supply of carbon dioxide gas is automatically stopped. ,
The carbonated water generator according to any one of claims 1 to 5, wherein the carbonated water generator is characterized by the above.

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