JPH06100381B2 - Forced circulation type bath pot device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION <Industrial field of application> The present invention relates to a forced circulation bathtub device.

<Prior Art> There is a forced circulation bathtub device in which a bathtub 2 is arranged in the immediate vicinity of a bathtub 1 as shown in FIG. The hot water in the bathtub 1 is returned to the return pipe 3, the collection / delivery water chamber 8, the heating water chamber 4,
It is circulated to the bathtub 1 through a natural circulation path formed by the outflow pipe 5 and heated. A forced circulation path 6 is provided for the purpose of promoting the circulation of the natural circulation path and the effect of stirring the hot water in the bathtub 1. The forced circulation path 6 bypasses a part of the hot water in the return pipe 3 by the pump 7 directly to the outgoing pipe 5 side without passing through the heating water chamber 4. In such a device, when the hot water inlet / outlet on the bathtub 1 side and the hot water inlet / outlet on the bath kettle 2 side are at the same level, the forward pipe 5 and the return pipe 3 are horizontally piped straight. Because it is done
The position of the piping of the forced circulation path 6 did not pose any particular problem. However, in actuality, in consideration of usability of the bathtub 1, the bathtub 1 is often installed at a position lower by one step, and therefore, in order to eliminate the positional step, the return pipe 3 and the forward pipe 5 are provided in the middle thereof. Steps 3a and 5a are often provided. Against this background, as shown in FIG. 3, in the conventional device, the position of the discharge port 6a of the forced circulation path 6 was not always a preferable position. The position of the conventional discharge port 6a is the same as the installation position when the return pipe 3 and the forward pipe 5 are provided straight in the horizontal direction as described above. That is, in the conventional device shown in FIG. 3, the discharge port 6a of the forced circulation path 6 is provided so as to extend to the vicinity of the tip of the horizontal pipe 5b connected to the crank elbow that constitutes the step portion 5a of the forward pipe 5. It was being done.

<Problems to be Solved by the Invention> However, in this conventional device, since the distance from the discharge port 6a to the curved shoulder portion of the crank elbow (step portion 5a) is short,
It was found that the hot water vigorously discharged from the discharge port 6a bounces off at the curved shoulder of the stepped portion 5a to cause backflow, which rather deteriorates the circulation of the hot water flowing through the natural circulation path. There is a problem that the device vibrates or produces abnormal noise due to backflow or the like.

On the other hand, in general, the heating water chamber 4 is often provided with a plurality of thin chambers arranged in parallel in order to improve the heat exchange rate. For a plurality of heating water chambers 4 arranged in parallel, a collecting / delivering water chamber 8 is provided on the side of the heating water chamber 4, and the return pipe 3 and the outgoing pipe 5 are connected to the collecting / delivery water chamber 8. However, there is a drawback that air bubbles tend to accumulate in the upper part of the water collection / delivery chamber 8, and the discharge port
If 6a is deeply inserted as described above, there is a problem in that the air bubbles in the collection / delivery water chamber 8 are not sufficiently discharged because they are far from the position of the air bubble reservoir.

<Purpose> Therefore, the present invention eliminates the above-mentioned drawbacks of the prior art, and even in a bath hook device in which a step portion is provided in the middle of the circulation path, it is possible to sufficiently enhance the circulation effect by the forced circulation system,
Another object of the present invention is to provide a forced circulation type bath hook device that does not generate vibration or abnormal noise and does not accumulate bubbles in the water quality for collection and delivery.

<Means for Solving Problems> The present invention relates to a bathtub 1, a bathtub 2 arranged in the immediate vicinity of the bathtub 1, an outflow pipe 5 for sending hot water from the bathtub 2 to the bathtub 1, and The return pipe 3 for sending hot water from the bathtub 1 to the bath kettle 2 and the role of once collecting the hot water heated in the heating water chamber 4 of the bath cooker 2 and connecting it to the outflow pipe 5 from the upper part of the chamber 8 A collection / delivery water chamber 8 that serves to distribute the circulating water from the return pipe 3 to the heating water chamber 4, and a forced circulation path 6 that is provided so as to be bypassed from the middle of the return pipe 3 to the forward pipe 5 side. And a stepped portion 3a, 5a for absorbing a positional step between the bathtub 1 and the bathtub 2 is provided in the forward pipe 5 and the return pipe 3, respectively, and a forced circulation bathtub is provided. In the device, the suction port 6b of the forced circulation path 6 is arranged so as to be deeply inserted into the return pipe 3. Along with
The discharge port 6a of the forced circulation path 6 is characterized in that the discharge port 6a is arranged in the water collection / delivery chamber 8 so as to face the forward pipe 5 in a double-tube shape.

<Operation> Since the suction port 6b of the forced circulation path 6 is deeply inserted into the return pipe 3 of the natural circulation path, a large amount of hot water is sucked from the return pipe 3 into the suction port 6b, and therefore the discharge amount from the discharge port 6a. Also increases. Therefore, the circulation efficiency of the hot water through the forced circulation path 6 is improved, and the ejector effect at the discharge port 6a is improved. Moreover, since the discharge port 6a of the forced circulation path 6 is in the water collection / delivery chamber 8 and faces the forward pipe 5 of the natural circulation path in a double tubular shape, first, the bathtub 1 and the bathtub 2 are separated. Even in the very vicinity, the position of the discharge port 6a is located away from the step portion 5a, and the flow from the discharge port 6a collides with the step portion 5a and flows backward, causing a circulating flow, poor circulation, vibration, or abnormal noise. Occurrence is eliminated. Further, since the discharge port 6a is located in the water collection / delivery chamber 8, the effect of attracting hot water from the side of the heating water chamber 4 due to the double pipe structure is increased, and the bubbles, which are likely to accumulate in the upper portion of the water chamber 8, are eliminated in the upper portion of the chamber 8 This is facilitated by inducing a negative pressure by discharging from a certain discharge port 6a.

<Embodiment> FIG. 1 is an overall configuration diagram of an embodying apparatus of the present invention, and FIG. 2 is a sectional view of an essential part.

The bath kettle 2 is placed very close to the bath tub 1, and the return pipe 3
A natural circulation path is constituted by the outflow pipe 5. Return pipe 3
The forward pipe 5 is provided with stepped portions 3a and 5a which are connected to each other by a crank elbow. The forced circulation path 6 is provided so as to bypass from the middle of the return pipe 3 to the outgoing pipe 5 side. A pump 7 for forced circulation is provided in the middle of the forced circulation path 6. The bath kettle 2 is provided with a heating water chamber 4 and a burner 9 for heating the heating water chamber 4. A collection / delivery water chamber 8 is provided on the side of the heating water chamber 4 so as to be located outside the case of the bath kettle 2, and the return pipe 3 and the forward pipe 5 are connected to the collection / delivery water chamber 8. Then, the discharge port 6a of the forced circulation path 6 faces the connection port in the upper part of the water collection / delivery chamber 8 to which the forward pipe 5 is connected in a double-pipe shape. That is, the discharge port 6a is located in the upper part of the water chamber 8 and faces the base of the horizontal pipe 5b projecting from the water collection / delivery chamber 8 for connection in the form of a double pipe. On the other hand, the suction port 6b of the forced circulation path 6 is arranged so as to be deeply inserted into the return pipe 3 of the natural circulation path. Suction port 6b is return pipe 3
By being inserted deeply inside, the hot water flowing through the natural circulation path can be efficiently sucked in, whereby the discharge force and amount from the discharge port 6a increase, and the ejector effect also increases.

Now, when the heating water chamber 4 is heated, the hot water in the heating water chamber 4 is boiled, collected in the collecting and delivering water chamber 8, and further passed from the collecting and delivering water chamber 8 through the forward pipe 5 connected to the upper part to the bathtub. 1 is sent. Hot water from the bathtub 1 passes through the return pipe 3 into the collection / delivery water chamber 8 and is further distributed from the collection / delivery water chamber 8 to the heating water chamber 4. Then, when the pump 7 is driven, a part of the hot water in the return pipe 3 is discharged from the discharge port 6a through the forced circulation path 6. At this time, since the discharge port 6a is not located close to the step portion 5a, the discharge flow does not collide with the step portion 5a to cause backflow. In addition, the discharge port 6a is in the collection and delivery water chamber 8,
Since it is provided in the position of the base of the horizontal pipe 5b for connecting the water chamber 8 so as to face the double pipe, it is easy to attract the hot water in the heating water chamber 4, and thus the natural circulation path passing through the heating water chamber 4 is formed. The circulation effect increases. In addition, the discharge port 6a is provided in the upper part of the collection / delivery water chamber 8.
Because of this, it is possible to attract the air bubbles that accumulate in the upper part of the collection / delivery water chamber 8 and discharge them to the outflow pipe 5 side.

<Effect> The present invention is configured as described above and has the suction port 6b of the forced circulation path 6.
Is deeply inserted into the return pipe 3 of the natural circulation path, the suction efficiency from the return pipe 3 to the suction port 6b is good, and therefore the discharge force and the discharge amount from the discharge port 6a are increased, resulting in the forced circulation path. The circulation of hot water through 6 improves,
Further, the ejector effect at the discharge port 6a is improved. Moreover, since the discharge port 6a of the forced circulation path 6 is in the water collection / delivery chamber 8 and faces the forward pipe 5 of the natural circulation path in a double-tube shape, first, the bathtub 1 and the bath kettle 2 are very close to each other. However, the position of the discharge port 6a is separated from the step 5a,
The occurrence of defective circulation, vibration, and abnormal noise due to the flow from the side colliding with the step portion 5a and flowing backward. Further, since the discharge port 6a is located in the water collection / delivery chamber 8, the effect of attracting hot water from the heating water chamber 4 side by the double pipe structure is improved, and particularly the discharge port 6a is provided.
Is located in the upper part of the collection / delivery water chamber 8,
It is easy to attract and remove bubbles that tend to collect in the upper part. Of course, it is not necessary to increase the horizontal distance between the bathtub 1 and the bathtub 2 to eliminate the backflow of circulating water.

[Brief description of drawings]

FIG. 1 is an overall configuration diagram of an apparatus for carrying out the present invention, FIG. 2 is a sectional view of an essential part, and FIG. 3 is a sectional view of an essential part of a conventional apparatus. 1: Bathtub, 2: Bath kettle 3: Return pipe, 4: Water chamber for heating 5: Outgoing pipe, 5a: Step 6: Forced circulation path, 6a: Discharge port 7: Pump, 8: Water chamber for collection and distribution

Front Page Continuation (72) Inventor Keiichi Bandai, 32, Akashi-cho, Chuo-ku, Kobe-shi, Hyogo In stock company Norits (72) Inventor Nishi-ichiro, 32, Akashi-cho, Chuo-ku, Kobe-shi, Hyogo In stock company Noritsu (56 ) Reference JP-A-61-99058 (JP, A)

Claims (1)

[Claims] 1. A bathtub 1, a bath kettle 2 arranged in the immediate vicinity of the bathtub 1, an outflow pipe 5 for sending hot water from the bathtub 2 to the bathtub 1, and hot water from the bathtub 1 to the bathtub 2. The function of connecting the return pipe 3 for sending and the hot water heated in the heating water chamber 4 of the bath pot 2 and connecting it to the outflow pipe 5 from the upper part of the chamber 8 and the circulating water from the return pipe 3 It has a collecting / delivering water chamber 8 that serves to distribute to the heating water chamber 4, and a forced circulation path 6 that is provided so as to be bypassed from the middle of the return pipe 3 to the outgoing pipe 5 side. In the forced circulation type bath kettle device in which the step portions 3a and 5a for absorbing the positional difference between the bathtub 1 and the bathtub 2 are provided in the return pipe 3 and the return pipe 3, respectively, Suction port 6b
Is arranged so as to be inserted deeply into the return pipe 3, and the discharge port 6a of the forced circulation passage 6 is arranged in the water collection / delivery chamber 8 so as to face the forward pipe 5 in a double-tube shape. A forced circulation type bath kettle device characterized in that