JPH05164397A - Hot-water filling device - Google Patents

Abstract

PURPOSE:To permit hot-water filling to the optimum water level by a method wherein the set water level of hot-water filling is corrected based on the referential position of a bathtub fitting when the bathtub fitting, connecting a water passage for filling hot water and the side wall of a bathtub, is arranged at a position deviated from the optimum position. CONSTITUTION:The amount of water below a fitting 20, which is measured by a flow rate counter 10 from the starting of hot-water filling until a submerged signal of the bathtub fitting 20 is outputted from a submerging monitoring means 12, is divided by an unit volume (a volume in the bathtub 2 per unit height). In this case, the height HO of the fitting as the actual arranging height of the bathtub fitting 20 measured from the bottom wall of the bathtub 2 is operated. Next, an error DELTAH between the reference height H, which is to be outputted from an arranging error operating means 14, is operated by the arranging error operating means 14 while a set water level is corrected in accordance with the change of the mounting position of the bathtub fitting 20 by adding the error DELTAH on or subtracting the error DELTAH from a set water level set by a water level setter 17. According to this method, hot-water can be filled to the optimum water level without being affected by the arranging error of the bathtub fitting 20.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a hot water filling apparatus, and even if a hot water fitting for connecting a hot water passage and a side wall of a hot water tank is arranged out of an appropriate position, the hot water fitting is used as a reference. The water filling level can be corrected so that the water filling up to an appropriate water level can be performed without being affected by the arrangement error of the bathtub fittings.

[0002]

2. Description of the Related Art An invention of Japanese Patent Application No. 3-291427 has been proposed as a bath apparatus having an automatic water filling function for automatically stopping the water filling operation when the water level in the bathtub reaches a set water level. It is configured as shown in Figure 1,
The reheating heat exchanger (22) and the bathtub (2) are connected by a reheating circuit (21) circulating between them. In addition, the reheating circuit
A temperature sensor (40), a water level sensor (41) and a switching valve (25) are sequentially arranged from the upstream side on the upstream side of the reheating heat exchanger (22) in (21). Heat exchanger for reheating (22)
A water flow switch (F) is inserted on the downstream side of.

A hot water supply circuit (27) passing through a hot water supply heat exchanger (26) is connected to the switching valve (25) in the reheating circuit (21), and the hot water supply circuit (27). A water filling valve (28) and a backflow prevention device (29) are inserted in the water filling valve. Also, the hot water supply circuit (27)
A flow counter (10) is inserted in the. Each of the above parts is electrically connected to a control circuit (3) incorporating a microcomputer (hereinafter, abbreviated as a microcomputer), and the control circuit (3) has a remote control device (18) arranged on the wall surface of the bathroom.
Are connected by wiring, and the remote control device (18) is further provided with a water level setting device (17) for setting the water level filled with water.

In the above prior art bath device, the water level setting device
When the filling water level is set in (17), the microcomputer of the control circuit (3) calculates the amount of water required to fill the bathtub to the set water level, and at the same time supplies the required amount of water to the bathtub (2). Perform tensioning operation. The details will be described below. As shown in Fig. 4, when the operation switch (19) is operated, the pump (P) is driven to judge the output of the water flow switch (F) (reference numeral (51)).
(See steps from (53)). Then, when the water flow switch (F) outputs an OFF signal and it is determined that there is no residual water in the bathtub (2), the pump (P) is stopped and the determination flag (f) (first hot water filling) is performed. At the time of operation, the contents of "0" are checked to determine whether or not it is the first water filling operation after the installation of the equipment (see steps (53) to (55) in the drawing). Then, in the step of the reference numeral (55), if it can be confirmed that the water filling operation currently being executed is the first water filling operation after the equipment is installed (f = 0), the judgment flag
After setting (f) to "1", the operation and pump to supply the specified amount of hot water of 10 liters to the bathtub (2) each time.
The operation of driving (P) and judging the output of the water flow switch (F) is alternately repeated (see the steps indicated by the reference numerals (56) (57) (58) (59) (60) in the drawing). Then, when the pump (P) is driven, the water flow switch (F) outputs an ON signal and the bathtub metal fitting (20) on the side wall of the bathtub.
When it is confirmed that the water level has risen to the part, the amount of warm water Q supplied to the bathtub (2) until the bathtub fitting (20) is submerged.
The (measured water amount of the flow rate counter (10)) is stored in the microcomputer as the metal fitting sewage amount W0, and the detected water level h0 of the water level sensor (41) at that time is also stored in the microcomputer (drawing symbol (61) ( See step 62)). Also, the water level sensor at the time when the water flow switch (F) outputs an ON signal.
The water level h0 detected by (41) and the water level h detected by the water level sensor (41) after supplying 20 liters of warm water to the bathtub (2).
Using the water level difference ΔY of 1, the bathtub volume per unit height (hereinafter referred to as the unit volume WH1) is calculated and the bathtub (2)
Calculate the metal fitting height H0 from the bottom of the to the bath metal fitting (20). That is, “unit volume WH1 = (20 / water level difference ΔY)”
And "Metal fitting height H0 = Metal fitting sewage amount W0 / Unit volume WH1
Is calculated (refer to the steps of drawing codes (621) (622) (63)). After that, the required hot water amount W that needs to be supplied to the bathtub (2) is calculated using the unit volume WH1 and the set water level L set with the bathtub fitting (20) as a reference. That is, the required amount of hot water W = unit volume WH1 x (set water level L
-Water level difference ΔY) is calculated, and the required amount of hot water W is added to the bathtub.
(2) is supplied to complete the first filling operation (drawing code
(See steps (66) and (67)).

Next, the operation of water filling after the second installation (hereinafter referred to as normal water filling) will be described.
The water level in the bathtub (2) can be set at multiple levels with the water level setting device (17) (first level L1 to seventh level L7 in the figure).
Although it can be set within the range of, the water level set by the water level setting device (17) L (specific level among the above multiple levels)
When is set, the set water level L is processed in the microcomputer as a water level based on the bathtub fitting (20).

Now, when the set water level L is set by the water level setting device (17) and the normal water filling operation is started, if there is no residual water in the bathtub (2), the step indicated by the reference numeral (55) in FIG. The control operation is branched to the step of the drawing code (72) for calculating the required amount W of hot water. That is, the metal fitting height H0 from the bottom of the bathtub (2) to the bathtub fitting (20) and the set water level L based on the height of the bathtub fitting (20) are added to obtain a water level based on the bottom of the bathtub. It is converted and multiplied by the water level based on the bottom of the bath and the unit volume WH1 (volume in the bath per unit height) to obtain the required amount W of hot water required for filling. That is, "required hot water amount W = (set water level L + metal fitting height H0) x unit volume WH1
Is calculated.

Then, the required amount of hot water W is added to the bathtub (2).
Supply the drawing code (67) to the bathtub
The normal filling operation to (2) is completed. In this case, since the set water level L set by the water level setting device (17) is the water level based on the bathtub fitting (20), the bathtub (2) is installed on the second floor of the house, etc. ) And the height of the device body (1) are relatively different from each other, which is an advantage that water filling can be performed.

However, the above-mentioned prior art has a problem that the level of the water filled with water measured from the bottom surface of the bathtub (2) varies depending on the installed bathtub. To further elaborate on the above-mentioned problems, the reheating circuit (2
The connection position of 1), that is, the mounting position of the bathtub fitting (20) is usually slightly different for each bathtub (2) to be installed. On the other hand, since the set water level L by the water level setting device (17) is the water level based on the bathtub fitting (20) as described above, the standard mounting height of the bathtub fitting (20) is the standard mounting height. When the height is changed with respect to the metal fitting reference height H, the water level filled with water measured from the bottom wall of the bathtub changes by the change. Therefore, even if the set water level L is set by the water level setter (17), the water level with respect to the bottom surface of the bathtub (2) is deviated due to the error in the mounting height of the bathtub fitting (20), and the proper hot water is generated. The tension cannot be done.

The present invention has been made in view of the above points, and it is "a flow rate counter (10) for measuring the amount of hot water supplied to the bathtub (2)."
And a bathtub fitting (2
0) A bathtub to be installed in a "water filling device equipped with a water level setting device for setting a water filling level L based on the portion"
The problem is to prevent the water level filled with water measured from the bottom wall of the bathtub from changing every (2).

[0010]

The technical means of the present invention for solving the above problems will be described with reference to the conceptual diagram of FIG. 3. The technical means of the present invention is "when the bathtub fitting (20) is submerged in the water in the bathtub. A submersion monitoring means (12) that outputs a submersion signal to the water, and the metal fitting sewage amount W0 measured by the flow counter (10) from the start of filling the water until the above submersion signal is output
Metal fitting height calculating means (13) for calculating the metal fitting height H0 of the metal fittings for the bathtub (20) divided by H1 and measured from the bottom wall of the bathtub, and the metal fitting height output by the fitting height calculating means (13) Arrangement error calculating means (14) for calculating an error ΔH between H0 and a predetermined metal fitting reference height H of the bathtub fitting (20) is provided.
The error ΔH calculated by (14) is the water level L set by the water level setting device (17).
The set water level L is corrected by adding / subtracting.

[0011]

The above technical means operates as follows. Bathtub
When the operation of filling the water in (2) is started, the flow rate counter (10) starts measuring the amount of hot water supplied to the bathtub (2) as in the conventional one. The bathtub fittings (20) continue to be filled with water in the bathtub (2).
When is submerged in water, the submersion monitoring means (12) detects the submerged state and the submersion monitoring means (12) outputs a submersion signal.

Then, from the start of the filling of the bath until the submersion signal of the bathtub fitting (20) is output from the submersion monitoring means (12), the fitting counter sewage amount W0 measured by the flow rate counter (10) is converted into a unit volume WH1 (unit height The volume in the bathtub per unit). That is, the metal fitting height H0 as the actual disposition height of the bath metal fitting (20) measured from the bottom wall of the bath tub is calculated. Next, the metal fitting height H0 output by the arrangement error calculating means (14) and the metal fitting reference height H which is the predetermined height of the bathtub fitting (20).
The error ΔH with respect to is calculated by the arrangement error calculating means (14), and the error ΔH is added to or subtracted from the set water level L set by the water level setting device (17), depending on the change in the mounting position of the bathtub fitting (20). The set water level L can be corrected.

[0013]

[Effect] The present invention has the following unique effects. Bathtub fittings (2
Even if the installation height of (0) changes from the predetermined metal fitting reference height H, the set water level L is corrected according to the change, so the water level measured from the bottom wall of the bathtub changes. There is no inconvenience.

[0014]

Embodiments of the present invention described above will now be described with reference to the drawings. The bathtub (2), the appliance body (1), and the connection relationship between them are the same as those in FIG. 1 described above. A control program having the contents shown in FIG. 2 is stored in the microcomputer incorporated in the control circuit (3) of the appliance body (1), and the operation of the bath apparatus to which the present invention is applied is the first operation after installation of the appliance. Description will be made separately for the case of the initial filling operation and the subsequent normal filling operation. [Regarding the first filling operation] (A). When the power supply is connected after the equipment is installed, the determination flag (f) used to determine whether or not it is the first water filling operation after the equipment is installed is set to "0" (see step 50 in the drawing). (I). Next, the operation switch (1
The operation of 9) is monitored, and when this is operated, the pump (P) is driven and the output of the water flow switch (F) is judged (drawing code (5
See steps 1) to (53). And the water flow switch
When (F) issues an OFF signal and it is determined that there is no residual water in the bathtub (2), the pump (P) is turned OFF and the judgment flag (f) that was initially set to "0" It is determined whether or not it is the first water filling operation after the installation of the equipment by referring to the contents (see steps (53) to (55) in the drawing). Then, when it is possible to confirm that the water filling operation currently being performed when the step of drawing code (55) is executed is the first water filling operation after the installation of the equipment (f = 0), the determination flag (f) After setting water to "1", 10 liters of water filling and the driving of the pump (P) are alternately repeated, and when the water flow switch (F) outputs an ON signal when the pump (P) is driven, the pump (P ) Is stopped and the output of the flow rate counter (10) at that time, that is, the amount Q of hot water supplied to the bathtub (2) until the bathtub fitting (20) is submerged
Is stored in the microcomputer as the metal fitting sewage amount W0. or,
The detected water level h0 of the water level sensor (41) at that time is stored in the microcomputer (refer to steps (55) to (62) in the drawing). Further, in this embodiment, a drawing symbol (59) for checking the output of the water flow switch (F) by intermittently repeating the operation of filling the bathtub (2) with a unit of 10 liters and the driving of the pump (P).
The functional unit in the microcomputer of the control circuit (3) that executes the step (1) corresponds to the submersion monitoring means (12) described in the section of technical means.

When the bathtub (2) is filled with 10 liters of hot water, the hot water supply gas burner (24) is burned and the hot water supply circuit (27) is filled with the water filling valve (28). This is done by supplying hot water to the bathtub (2) while monitoring the amount of water measured by the flow rate counter (10). (C). If the bathtub fitting (20) is submerged in water, a water filling valve will be added.
20 liters of hot water is supplied to the bathtub (2) while opening the valve (28) and monitoring the output of the flow rate counter (10).
(See step at (621)). Then, the detected water level h1 of the water level sensor (41) after supplying the hot water of 20 liters is stored in the microcomputer. (D). Next, when the bathtub fitting (20) is submerged in water, a water level difference ΔY between the detected water level h0 stored in the microcomputer and the detected water level h1 of the water level sensor (41) indicating the current water level in the bathtub is calculated (drawing code (622 ) Step). Also, the above bathtub fittings
20 as the amount of hot water supplied to the bathtub (2) after submersion of (20)
The liter is divided by the water level difference ΔY to calculate a unit volume WH1 as a bathtub volume per unit height (for example, 1 cm), and the metal fitting sewage amount W0 is divided by the unit volume WH1 to calculate the bathtub (2). Calculate the metal fitting height H0 from the bottom surface to the bathtub metal fitting (20) (see step of drawing code (623)). (E). Next, an error as a deviation between the metal fitting reference height H predetermined as an appropriate position for disposing the bath metal fitting (20) on the side wall of the bath (2) and the actual metal fitting height H0 of the bath metal fitting (20). Calculate ΔH.

That is, the error ΔH = metal fitting reference height H-metal fitting height H0 is calculated (see step 624). And the set water level L set by the water level setter (17)
By adding the error ΔH to the above, the set water level L is corrected based on the arrangement error of the bathtub fitting (20) and the corrected water level is stored in the microcomputer as a new set water level L (drawing symbol ( 625) step). Then, the filling water level (water level measured from the bottom of the bathtub) when water is filled from the fitting height H0 to the corrected set water level L is the fitting reference height that is predetermined as the installation position of the bathtub fitting (20). It becomes equal to the water level filled with water from H to the set water level before correction (water level measured from the bottom of the bathtub), and the set water level L after the above correction is when there is no error in disposing the bathtub fitting (20). This will indicate the proper water level for filling. This allows the bathtub (2)
Even if the mounting height of the bathtub fitting (20) on the side wall of the bathtub deviates from the reference height H of the fitting, there is no inconvenience that the filling water level measured from the bottom wall of the bathtub (2) changes for each installed bathtub. Then, by using the corrected set water level L, the required hot water amount W that needs to be replenished in the bathtub (2) thereafter is calculated. That is, the required amount of hot water W = (set water level L × unit volume WH1-2)
0) is calculated (see step of drawing code (626)).

In this embodiment, the functional unit in the microcomputer for calculating the metal fitting height H0 corresponds to the metal fitting height calculating means (13) described in the above-mentioned technical means. Further, the function part in the microcomputer for calculating the difference ΔH by calculating the difference between the metal fitting height H0 and the metal fitting reference height H corresponds to the arrangement error calculating means (14) described in the above-mentioned technical means section. ing. (F). Next, the hot water of the required hot water amount W calculated above is supplied to the bathtub (2) (see step of reference numeral (67)),
After the initial filling operation is completed, the control operation is returned to the step of the reference numeral (51) for monitoring the operation of the operation switch (19). [Regarding normal filling operation] (A). If it can be determined that the bathtub metal fitting (20) on the side wall of the bathtub (2) is not submerged and the residual water is not accumulated in the bathtub (2), the water flow in the step of the drawing code (53). When the OFF signal of the switch (F) is detected and the judgment flag (f) is further judged (refer to the step of the drawing code (55)), the judgment flag
It can be confirmed that (f) is not "0". That is, it can be confirmed that the determination flag (f) is set to "1" in the step of the reference numeral (56) executed at the time of the first filling operation. In addition, when the ON signal of the water flow switch (F) is output in the step of the reference numeral (53), the output of the water level sensor (41) for detecting the water level in the bathtub at that time and the unit volume Bathtub using WH1
The required hot water amount W required to be supplied to (2) is calculated, and the required hot water amount W is supplied to the bathtub (2). (I). If the judgment flag (f) is not "0" in the step of the drawing code (55) and it is judged that the water filling operation currently being executed is the normal water filling operation, the setting after the correction described above is performed. Using the water level L and the metal fitting sewage amount W0 obtained at the time of the first filling operation, the required amount of hot water W to be supplied to the bathtub (2) is calculated. That is, the required amount of hot water W is obtained by adding the amount of metal fitting sewage W0 required to fill the actual height of the metal fittings of the bathtub fitting (20) to H0 and the amount of water obtained by multiplying the set water level L by the unit volume WH1. Calculate (see step of drawing code (68)). Then, when the required amount W of hot water is supplied to the bathtub (2), the normal hot water filling operation is completed (see step of reference numeral (67)). Then, the water filling level when the water is filled up to the set water level L after the correction is the water filling water level when the water is filled up from the metal fitting reference height H to the set water level before the correction, that is, the installation position of the bathtub fitting (20). Since it is the same as the water level filled with water if it is not displaced from the proper position,
Water can be filled up to an appropriate water level regardless of the deviation of the installation position of 0).

In the above embodiment, the difference between the metal fitting reference height H and the actual metal fitting height H0 (metal fitting sewage amount W0 / unit volume WH1) of the bath fitting (20) measured from the bottom wall of the bath is defined as the error ΔH. The error ΔH may be obtained by multiplying the error by a correction coefficient (for example, 0.5).

[Brief description of drawings]

[Figure 1] Configuration diagram of bath equipment

FIG. 2 is an explanatory diagram of an embodiment of the present invention.

FIG. 3 is a conceptual diagram of the present invention.

FIG. 4 is an explanatory diagram of prior art.

[Explanation of symbols]

 (2) ・ ・ ・ Bathtub (10) ・ ・ ・ Flow rate counter (20) ・ ・ ・ Bathtub fittings (41) ・ ・ ・ Water level sensor

Claims (1)

[Claims] 1. A flow counter (10) for measuring the amount of hot water supplied to a bathtub (2) and a set water level L based on a bathtub fitting (20) that connects a water passage for filling water to the side wall of the bathtub. In a water filling device equipped with a water level setting device,
A submersion monitoring means (12) that outputs a submersion signal when (20) submerges in the water in the bathtub, and a unit of the metal fitting sewage volume W0 measured by the flow counter (10) from the start of filling up until the above submersion signal appears. Metal fitting height calculation means (13) for calculating the metal fitting height H0 of the metal fitting (20) measured from the bottom wall of the bath by dividing by the unit volume WH1 which is the volume inside the bath per height, and the metal fitting height calculation Means (13)
Bathtub fittings (20) with a predetermined fitting height H0 output by
An arrangement error calculating means (14) for calculating an error ΔH with respect to the metal fitting reference height H is provided, and the error ΔH calculated by the arrangement error calculating means (14) is set to the set water level L of the water level setting device (17). A water filling device configured to correct the set water level L by adding and subtracting.