JPH077640U - Salt bath - Google Patents

Abstract

(57) [Abstract] [Purpose] In a salt bath that is useful for beauty and health by putting hot water having a high salt concentration into the bathtub 5, the inside of the connection pipe 7 that connects the bathtub 5 and the saltwater tank 1 and supplies salt is salt. Don't get stuck in. [Structure] The connecting pipe 7 is provided at a position lower than the water level of the bathtub 5. As a result, the inside of the connecting pipe 7 is not filled with hot water and does not dry, and salt deposition can be prevented.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a salt bath using hot water having a higher salt concentration than usual, and particularly to a device for supplying salt when the salt concentration of hot water becomes low.

[0002]

[Prior art]

 Salt baths have already been used to add salt to the bath water to increase the salt concentration and to help beauty and health. The salt concentration is 0.5-1.5%. If it is less than 0.5%, the effect on beauty and health is halved, and if it exceeds 1.5%, a sticky feeling to the body occurs. Therefore, if the concentration is within the above range, no sticky feeling is produced and the effects on beauty and health can be maintained. If the temperature of the hot water in the bathtub is high, water is added, so that the salt concentration becomes low. In order to add the deficient salt content in this way, conventionally, salt was added directly to the bath or, as shown in FIG. 4, the salt content was automatically supplied. In FIG. 4, salt and water are put in the salt water tank 1 and stirred by the stirrer 3. The saltwater tank 1 and the bathtub 5 are connected by a connecting pipe 7, and an automatic valve 9 is provided. The sensor 11 provided in the bath 5 detects the salt concentration, and the controller 13 opens and closes the automatic valve 9 to keep the salt concentration within the range.

[0003]

[Problems to be solved by the device]

 However, with the automatic valve 9 closed, the inside of the connecting pipe 7 beyond the automatic valve 9 will dry. The water content of the salt water evaporates, and the salt is deposited on the inner wall of the connecting pipe 7 and becomes sticky. When the thickness of the stuck salt becomes large, there is a possibility that the connection pipe 7 speaks and the salt water is not supplied even if the automatic valve 9 is opened. Further, the stirrer 3 or the controller that controls the stirrer 3 is expensive, which increases the cost of the entire salt bath. The present invention has been made to solve the above problems, and provides a salt bath that prevents the connecting pipe from being clogged with the deposited salt and that does not require a stirrer and can reduce costs. The purpose is to do.

[0004]

[Means for Solving the Problems]

 In order to achieve the above objects, the present invention is provided in a bathtub, a saltwater tank in which salt water is stored, a connecting pipe connecting the bathtub and the saltwater tank at a position lower than the water level of the bathtub, and the connecting pipe. And an automatic valve, a sensor for detecting the salt concentration of hot water in the bathtub, and a control device for opening the automatic valve when the detected concentration falls below a set value. Further, the bathtub communicates with the heating equipment through a circulation path for circulating hot water with a pump, and the connection pipe can form a part of a bypass pipe provided in the circulation path.

[0005]

[Action]

 Since the connecting pipe is located at a position lower than the water level in the water tank, the inside of the connecting pipe is always filled with hot water and does not dry, so that salt precipitation can be prevented. In addition, since the hot water circulating in the circulation path flows into the salt water tank through the bypass pipe, the salt can be naturally stirred by the force of this flow.

[0006]

【Example】

 A first embodiment of the present invention will be described below with reference to FIGS. The boiler 17 boiles the hot water by the fuel from the fuel tank 15 and supplies it to the heat exchanger 19. This supply is performed by the pump 21. The check valve 23 also prevents the hot water from flowing backward. The bathtub 5 communicates with the heat exchanger 19, which is a heating facility, via a circulation path 25. That is, the hot water whose temperature has dropped in the bathtub 5 passes through the water supply passage 27 at the bottom, the hair catcher 29, and the dust is removed by the filter. After that, it is sent to the filtration tank 23 through the circulation pump 31, further sent to the active tank 35 for purification, and then heated by the heat exchanger 19. The clean hot water exiting the heat exchanger 19 returns to the bathtub 5 through the circulation path 25. A bypass pipe 37 is provided in the circulation path 25 in the middle of this return. The salt water tank 1 is connected to the bypass pipe 37 via a valve 39 and a bypass pump 41. As shown in FIG. 2, the salt water tank 1 has a mass of salt 43 and hot water stored therein. The hot water that has circulated and returned flows from the inlet pipe 45 into the vicinity of the bottom of the salt water tank 1. Due to the force of this flow, the hot water inside is naturally stirred and the salt 43 is melted. The hot water in which the salt is dissolved and the salt concentration is increased flows out from the outlet pipe 47. It merges with the circulation path 25 from the outlet pipe 47 through the connecting pipe 7. In this way, the connecting pipe 7 constitutes a part of the bypass pipe 37.

The connection pipe 7 is provided at a position lower than the water level of the bath 5 and the water level of the salt water tank 1. Therefore, the inside of the connecting pipe 7 is always filled with hot water. That is, although the connecting pipe 7 is provided with the automatic valve 9, even if the automatic valve 7 is closed, the upstream side of the automatic valve 7 is filled with the hot water of the salt water tank 1, and the downstream side is the bath 5. Is filled with hot water. The automatic valve 9 is an electromagnetic valve, and the bypass valve 41 is driven when the automatic valve 9 is opened. Further, the bathtub 5 is provided with a sensor 11 for detecting the salt concentration of the hot water therein. As the sensor 11 for detecting the salt concentration, for example, there is a sensor that utilizes that the conductivity changes depending on the concentration. A detection signal from the sensor 11 is input to the control device 13, and the control device 13 opens the automatic valve 9 when the detected concentration falls below a set value. Then, when the detected concentration recovers and exceeds another set value, the automatic valve 9 is closed. By controlling the automatic valve 9 in this manner, the concentration of hot water in the bathtub 5 is maintained at about 0.5 to 1.5%.

As described above, according to the present invention, the inside of the connecting pipe 7 is always filled with hot water and does not dry as in the conventional case. It is possible to prevent the inconvenience that the inside of the connecting pipe 7 is clogged with salt after being deposited. Therefore, when the automatic valve 9 is opened, salt water is always supplied to the bathtub 5. Further, the hot water in the circulation path 25 is circulated by the circulation pump 31 and flows into the salt water tank 1 through the bypass pipe 37 with vigor, so that the inside of the salt water tank is naturally agitated by this force, which is the same as in the conventional case. No stirrer required. Also, the control device for controlling the stirrer is not required. The second embodiment shown in FIG. 3 is the same as the first embodiment except that the sensor 11 for detecting the salt concentration is provided in the middle of the circulation path. The installation position of the sensor 11 may be anywhere along the circulation path. Although the bypass pump 41 is provided in the bypass pipe in the above embodiments, the biopass pump 41 is not provided in the other embodiments, and the bypass pipe 41 is provided by the force of hot water circulating in the circulation path. It is also possible to let hot water flow into 37. Further, in the above embodiments, the heating equipment has the heat exchanger 19, but in other embodiments, the hot water in the circulation passage 25 is heated directly by the boiler without the heat exchanger 19. It is also possible.

[0009]

【effect】

 As described above, according to the salt bath of the present invention, since the connecting pipe connecting the bathtub and the salt water tank is located at a position lower than the water level of the bathtub, the inside of the connecting pipe is always filled with hot water and never dry. As a result, the precipitation of salt can be suppressed and it can be prevented from clogging with salt as in the past.In addition, the hot water flowing through the circulation path flows through the bypass pipe into the salt water tank, and the salt inside the salt water tank is naturally agitated. Therefore, it is not necessary to purposely provide a stirrer as in the conventional case, and an expensive control device for controlling the stirrer is not required, so that the cost of the salt bath can be reduced.

[Brief description of drawings]

FIG. 1 is an overall circuit diagram showing a first embodiment of the present invention.

FIG. 2 is an enlarged view of a part II in FIG.

FIG. 3 is a partial circuit diagram showing a second embodiment.

FIG. 4 is a schematic view showing a conventional device.

[Explanation of symbols]

 1 Salt Water Tank 3 Stirrer 5 Bath 7 Connection Pipe 9 Automatic Valve 11 Sensor 13 Control Device 15 Fuel Tank 17 Boiler 19 Heat Exchanger 21 Pump 23 Check Valve 25 Circulator 27 Water Intake 29 Hair Catcher 31 Circulating Pump 33 Filtration Tank 35 Active tank 37 Bypass pipe 39 Valve 41 Bypass pump 43 Salt 45 Inlet pipe 47 Outlet pipe

Claims (2)

[Scope of utility model registration request] 1. A bathtub, a saltwater tank in which saltwater is stored, a connecting pipe connecting the bathtub and the saltwater tank at a position lower than the water level of the bathtub, an automatic valve provided in the connecting pipe, and hot water in the bathtub. A salt bath, comprising: a sensor for detecting the salt concentration of 1. and a control device for opening the automatic valve when the detected concentration falls below a set value. 2. The salt according to claim 1, wherein the bathtub communicates with the heating equipment through a circulation path for circulating hot water with a pump, and the connection pipe constitutes a part of a bypass pipe provided in the circulation path. bath.