JPH0711358B2 - Bath cooker - Google Patents

Description

Description: TECHNICAL FIELD The present invention relates to a cooker for a boiler heating type bath.

[Background Art] In a boiler heating type bath, as shown in FIG. 3, a drain pipe 3 and a return pipe 4 are connected between a bath 1 and a boiler 2 so that hot and cold water in the bath 1 is discharged from the drain pipe 3. The water is heated in the boiler 2 by exchanging heat with the heat exchange tube 9 in the boiler 2, and the heated hot and cold water is returned from the return tube 4 into the bathtub 1 to perform the boiling of the bath.
Similarly, when cooking additional rice, activate the boiler 2 to activate the bathtub 1.
It can be performed by supplying hot water in the boiler 2 from the going pipe 3 and returning hot water heated in the boiler 2 to the bath 1 from the return pipe 4.

However, in this one, the hot and cold water heated to a high temperature in the boiler 2 is returned to the bathtub 1 from the return pipe 4 as it is, and the hot and cold water near the outlet of the return pipe 4 into the bathtub 1 is heated. It will be uncomfortable. Especially in the natural circulation system in which hot water is heated by the boiler 2, the circulation speed of the hot water between the bath 1 and the boiler 2 is slow, and the hot water is heated to an extremely high temperature in the boiler 2. The hot water near the outlet of the return pipe 4 may cause burns. Further, there is a boiler 2 in which a pump 10 is provided and hot water is forcedly circulated between the bathtub 1 and the boiler 2 by the pump 10.
Since the speed of passing through the inside depends on the capacity of the pump 10, the size of the pump 10 cannot be increased because it is built into the boiler 2 and there is a limit to its capacity, in order to secure the speed of boiling water. Boiler 2 set to large
It is difficult to give the pump 10 more capacity than its heating capacity, and the problem cannot be solved.

[Object of the Invention] The present invention has been made in view of the above points, and an object of the present invention is to provide a bath reheating device that allows a user to comfortably bathe while reheating. .

DISCLOSURE OF THE INVENTION In the bath heating apparatus according to the present invention, however, the hot water in the bathtub 1 is connected to the boiler 3 by connecting the going pipe 3 and the return pipe 4 between the bathtub 1 and the boiler 2. 2 and the hot water heated in the boiler 2 from the return pipe 4 to the bath 1
A reheating device for a bath, which is designed to be returned to the inside, wherein one end of the joining pipe 6 is connected to the middle of the return pipe 4 and the other end of the joining pipe 6 is connected to the bathtub 1 so that the hot water in the bathtub 1 is Confluence pipe 6
Is provided in the return pipe 4 and is joined to the hot water returned from the boiler 2 in the confluence pipe 6, and the bath reheating device according to the present invention is provided. , One end of the merging pipe 6 is connected in the middle of the return pipe 4 and the other end of the merging pipe 6 is connected to the going pipe 3, and the hot and cold water in the bathtub 1 is supplied from the merging pipe 6 into the return pipe 4 and the boiler 2 In the boiler 2, the pump 5 for joining the hot water returned from the inside is provided in the joining pipe 6 and the flow rate adjusting valve 11 is provided in the joining pipe 6 immediately before or after the pump 5. The hot water in the return pipe 4 heated to a high temperature is mixed with the hot water in the bathtub 1 and returned to the bathtub 1 in a state where the water temperature is lowered, thereby achieving the above object. The details will be described with reference to examples.

FIG. 1 shows an embodiment of the present invention in which a going pipe 3 is connected between a lower portion of a bath 1 and a boiler 2, and a return pipe 4 is connected between an upper portion of the bath 1 and a boiler 2. The forward pipe 3 and the return pipe 4 are connected to each other by the heat exchange pipe 9 in the boiler 2. A merging pipe 6 is connected between the lower part of the bath 1 and the middle of the return pipe 4, and a pump 5 is connected to the merging pipe 6. The pump 5 is electrically or mechanically controlled so that, for example, a signal of the operation of the boiler 2 (start of additional cooking) is used as a trigger to start the operation. Of course, the pump 5 is controlled so as to stop the operation in response to the stop of the operation of the boiler 2 (immediately or with a predetermined time delay).

However, when the boiler 2 is operated for additional cooking in a lever, hot water in the bathtub 1 flows into the boiler 2 from the going pipe 3 and is heated in the boiler 2, and the heated hot water returns. It is returned from the tube 4 into the bathtub 1. In this way, additional cooking can be performed. At this time, the hot and cold water heated in the boiler 2 and returned to the return pipe 4 is at a high temperature, but since the operation of the pump 5 is started at the same time as the operation of the boiler 2, the low temperature hot and cold water in the bathtub 1 is The low-temperature hot water is mixed with the high-temperature hot water returned from the boiler 2 to the return pipe 4, and the low-temperature hot water is mixed with the hot water. It flows out from the pipe 4 into the bathtub 1. The hot water heated by the boiler 2 in this way is returned to the bathtub 1 before returning to the bathtub 1.
It is possible to prevent the hot water from being mixed with the low-temperature hot water in the inside to lower the water temperature, and the hot water in the vicinity of the outlet of the return pipe 4 becomes high in temperature and causes discomfort or burns. Here, the operation of the boiler 2 causes a circulation of hot water between the bath 1 and the boiler 2 (natural circulation, or circulation by the action of a pump when a pump is provided in the boiler 2), and the power of this circulation causes the boiler 2 to flow. Hot water heated inside is flowed into the bathtub 1 in the return pipe 4. Then, the hot water in the bathtub 1 is supplied to the return pipe 4 from the merging pipe 6 by the operation of the pump 5, and merges with the hot water flowing into the return pipe 4 from the boiler 2 so that the hot hot water in the return pipe 4 is merged. The water temperature can be lowered. That is, the water temperature of the hot water heated in the boiler 2 and returned to the return pipe 4 is reduced by being diluted with the hot water in the bathtub 1 supplied by the pump 5, so that the capacity of the pump 5 is reduced. Even if it is not so large, the hot water in the bathtub 1 supplied by the pump 5 causes the water to flow from the return pipe 4 to the bathtub 1.
The water temperature of the hot water flowing into the inside will be surely lowered.

FIG. 2 shows another embodiment of the present invention, in which a flow rate adjusting valve 11 is provided immediately before or after the pump 5, and when the pump 5 is operated, hot water in the going pipe 3 excessively flows to the merging pipe 6 side. Flow rate to the boiler 2 becomes too small, and the bath 1 and the boiler 2
Flow control valve that prevents normal circulation between
It is designed to prevent in 11. In the present invention, a pump 10 may be provided in the boiler 2 so that the pump 10 can forcibly circulate hot water between the bath 1 and the boiler 2. The hot water may be circulated between the bathtub 1 and the boiler 2 by natural circulation without using 10.

[Effects of the Invention] As described above, in the present invention, one end of the confluence pipe is connected to the middle of the return pipe and the other end of the confluence pipe is connected to the bathtub.
A pump was installed in the confluence pipe to supply the hot and cold water in the bathtub from the confluence pipe to the return pipe and to join the hot water returned from the boiler.Therefore, the hot water that was heated in the boiler and returned to the return pipe was hot. Also, the low-temperature hot and cold water in the bathtub flows from the confluence pipe into the return pipe, is mixed with this high-temperature hot and cold water, and the hot and cold water that has been mixed and the water temperature is lowered flows out into the bathtub from the return pipe. It is possible to prevent hot water near the outlet of the pipe from getting hot and causing discomfort or burns. Further, since one end of the merging pipe is connected to the middle of the return pipe and the other end of the merging pipe is connected to the bathtub, hot water supplied to the return pipe through the merging pipe may be taken from the bathtub regardless of the hot water in the going pipe. It is possible to prevent the flow rate of hot and cold water supplied from the outlet pipe into the boiler from becoming too small even if the operation of the pump becomes excessive, and to generate normal circulation between the bathtub and the boiler. Is.

Furthermore, in the present invention, one end of the merging pipe is connected in the middle of the return pipe and the other end of the merging pipe is connected to the going pipe, and the hot and cold water in the bathtub is supplied from the merging pipe to the inside of the return pipe from the inside of the boiler. A pump for joining the hot water to be returned is installed in the merging pipe, and a flow rate adjusting valve is installed in the merging pipe immediately before or after the pump. The flow rate of hot water supplied from the pipe to the boiler is prevented from becoming too small even if the pump operates excessively, and normal circulation is generated between the bathtub and the boiler. It can be done.

[Brief description of drawings]

FIG. 1 is a schematic sectional view of an embodiment of the present invention, FIG. 2 is a schematic sectional view of another embodiment, and FIG. 3 is a schematic sectional view of a conventional example. 1 is a bathtub, 2 is a boiler, 3 is a going pipe, 4 is a return pipe, 5
Is a pump, 6 is a confluent pipe, and 11 is a flow control valve.

Front page continuation (72) Inventor Masaaki Kumagai 5-1, Hirano-cho, Higashi-ku, Osaka City, Osaka Prefecture Osaka Gas Housing Equipment Co., Ltd. (72) Tsuneo Tanaka, 1048, Kadoma, Kadoma-shi, Osaka Matsushita Electric Works (72) Inventor Michiyoshi Abe 1048, Kadoma, Kadoma City, Osaka Prefecture Matsushita Electric Works, Ltd. (72) Kaoru Yamashita, 1048, Kadoma, Kadoma City, Osaka Prefecture (72) Inventor, Kozo Sato Osaka Prefecture 1048 Kadoma, Kadoma-shi, Matsushita Electric Works, Ltd. (72) Inventor, Yoshiyuki Inoue 1048 Kadoma, Kadoma-shi, Osaka, Matsushita Electric Works, Ltd. (56) References: Sho 60-188955 (JP, U)

Claims (2)

[Claims] Claim: What is claimed is: 1. A hot water pipe and a return pipe are connected between the bathtub and the boiler to supply hot water from the hot water pipe to the boiler, and hot water heated in the boiler is fed from the return pipe to the hot water bath. A bath cooker that was designed to be returned,
A pump that connects one end of the merging pipe in the middle of the return pipe and the other end of the merging pipe to the bathtub, supplies the hot and cold water in the bathtub from the merging pipe into the return pipe, and joins the hot and cold water returned from the boiler. A bath cooker characterized by being installed in a confluence pipe. 2. A hot water and hot water in the bathtub is supplied into the boiler from the hot water pipe by connecting a going pipe and a return pipe between the bathtub and the boiler, and hot water heated in the boiler is taken in from the return pipe into the bathtub. A bath cooker that was designed to be returned,
A pump that connects one end of the merging pipe in the middle of the return pipe and the other end of the merging pipe to the going pipe, and supplies the hot and cold water in the bathtub from the merging pipe into the return pipe to join the hot and cold water returned from inside the boiler. A reheating device for a bath, characterized in that a flow control valve is provided in the confluence pipe immediately before or after the pump.