JPH061655Y2 - Hot water tank of hot water cleaning device - Google Patents

Description

[Detailed Description of the Invention] [Object of the Invention] (Industrial field of application) The present invention relates to a hot water tank of a hot water washing device attached to a Western style toilet or the like.

(Conventional Hot Water Tank) FIG. 2 is a front sectional view showing a conventional hot water tank 1.
The hot water tank 1 has a capacity of 1 to 3, and is a comparatively large-sized hot water tank of this kind. The hot water tank 1 uses the heater 5 to supply the water supplied from the water supply port 4.
The hot water is heated and stored in the hot water, and this hot water is sent from the hot water outlet 2 to a hot water washing device (not shown) as needed. The heating status of the heater 5 was controlled by the temperature sensitive tool 6a suspended in parallel with the heater 5. As shown in FIG. 3, the temperature sensitive device 6a constitutes a part of a thermostat 6 for controlling the opening and closing of the power supply circuit of the heater 5, and keeps the temperature of the hot water in the tank within the range of 39 ± 2 ° C. An overheat detector 3 is embedded in the tank ceiling surface 1a near the hot water outlet 2, and when the thermostat 6 malfunctions and the hot water storage temperature reaches a critical temperature of 60 ° C. or higher, the heater 5 It was supposed to disconnect the power circuit of.

(Problems to be Solved by the Invention) The hot water heated by the heater 5 initially stays at a shallow water level in the tank. Then, convection occurs from the shallow water level to the deep water level, and eventually the temperature distribution in the tank becomes uniform.

By the way, the thermostat 6 controls the heater 5 by the electric resistance generated comprehensively or cumulatively over the entire length of the temperature sensitive tool 6a with respect to the temperature distribution at each water level along the depth direction in the tank. That is, the operating temperature of the thermostat 6 is determined by the temperature of the medium water level in the tank.
Therefore, even if hot water starts to stay at the shallow water level, the heating of the heater 5 continues, and when the temperature sensing device 6a detects a predetermined operating temperature, the temperature difference between the shallow water level and the deep water level reaches 30 ° C. There was an occasion. That is, hot water far exceeding a predetermined temperature in the tank is retained at the shallow water level, and there is a risk of burns or the like if a hot water cleaning device (not shown) is used in this state. Further, the overheat detector 3 attached to the tank ceiling surface 1a detects an abnormality, and the heater 5
Sometimes the power supply circuit was cut off. If the power supply circuit was cut off, maintenance by a specialist was required, which was an extremely troublesome repair work.

The present invention has been made in view of the above circumstances, and can completely eliminate the risk of burns and the like when using a hot water cleaning device, and the heater power supply circuit can unnecessarily disconnect the heater power supply circuit by the overheat detector. It is an object of the present invention to provide a new hot water tank (hereinafter, referred to as the main tank) of a hot water cleaning device that can prevent the occurrence of such a problem.

"Constitution of device" (Means for solving the problem) The gist of the tank of the present invention is that a hot water washing device has a hot water outlet at the upper part of the tank and an overheat detector is provided near the hot water washing device. In the hot water tank of the hot water cleaning device that is provided, a partition wall for partitioning and holding a water area directly above the heater is vertically provided on the tank ceiling surface with respect to the outlet port and the overheat detector, and the lower end of the partition wall. Is located deeper than the accumulated water level of superheated water.

(Function) The hot water heated by the heater does not stay in the water area directly above the heater in the tank and does not reach the hot water outlet or the overheat detector beyond the partition wall. Therefore, even if the hot water in the water area directly above the heater is heated to a temperature far higher than the predetermined temperature in the tank, the superheated water is never sent from the hot water outlet to the hot water cleaning device. Further, there is no possibility that the heater power supply circuit is disconnected without the overheat detector being damaged.

(Embodiment) The present invention will be described below with reference to the drawings showing an embodiment thereof.

FIG. 1 is a front sectional view showing the tank of the present invention.

A partition wall 8 is vertically provided on the tank ceiling surface 7a of the proposed tank.

The partition wall 8 is formed in a cylindrical shape so as to surround both the temperature sensitive tool 6a of the thermostat 6 (see FIG. 3) and the heater 5, and is integrally formed with the tank ceiling surface 7a. The lower end of the partition wall 8 is formed deeper than the water level in which the superheated hot water can stay in the cylinder of the partition wall 8. The accumulated water level of the superheated water changes depending on factors such as the tank capacity, the material forming the partition wall 8 and the wall thickness (heat dissipation), the cylindrical diameter, and the set temperature of the temperature-sensitive tool 6a. Stays up to a depth of about 1/2 to 2/3.

In the present embodiment, the partition wall 8 is formed in a cylindrical shape so that substantially uniform heat radiation opportunities can be given to the entire circumference of the partition wall 8 and that hot water staying in the cylinder of the partition wall 8 and water outside the cylinder are This is to ensure that convection between the two is smoothly performed (no vortex or turbulence is generated). Further, the wall thickness of the partition wall 8 is made relatively thin to assist in heat dissipation. For this reason, the opening / closing cycle of the heater power supply circuit by the temperature sensing unit 6a becomes faster, and it is possible to quickly make the inside of the tank uniform at a predetermined temperature.

In addition, in this embodiment, the water supply port 4 faces the inside of the cylinder of the partition wall 8. Therefore, the water supplied into the cylinder of the partition wall 8 immediately exchanges heat with the heater 5, and the opening / closing cycle of the heater power supply circuit by the temperature sensing unit 6a can be accelerated. Is. In addition, the air contained in the water supply can be discharged to the outside through the water supply pipe 4a, which also prevents the air from accumulating in the partition wall 8.

(Examination of Another Mode) The partition wall 8 is formed inside or outside the partition wall 8 by using a material having excellent heat conductivity as a material and formed separately from the tank ceiling surface 7a or by forming a small hole at an appropriate position. The heat exchange may be activated. Further, the partition wall 8 is not limited to a cylindrical shape and may be a polygonal tubular shape or the like. On the tank ceiling surface 7a, a portion where the tap hole 2 and the overheat detector 3 are provided and directly above the heater 5. It may be like a single wall crossing between the parts. Further, the overheat detector may be a so-called thermostat, which itself has a circuit disconnecting function. Of course, the temperature sensitive tool 6a of the thermostat 6 does not matter inside or outside the partition wall 8. As described above, the configuration and shape of the tank of the present invention can be appropriately changed according to the embodiment.

[Effect of the Invention] As is clear from the above description, according to the hot water tank of the hot water cleaning apparatus according to the present invention, even if the hot water cleaning apparatus is used while the tank water is overheated, there will never be a burn, etc. Can be used safely. Further, there is no possibility that the heater power supply circuit is unnecessarily cut off by the overheat detector. Therefore,
Maintenance by a specialist is almost unnecessary. Furthermore,
Unlike the tanks with easy avoidance measures such as double installation of temperature sensitive devices, the proposed tank organically divides the inside of the tank to obtain a great effect, and the control circuit, etc. It has many excellent advantages such as no complication and cost increase.

[Brief description of drawings]

FIG. 1 is a front sectional view showing the tank of the present invention, FIG. 2 is a front sectional view showing a conventional hot water tank, and FIG. 3 is a circuit diagram showing a heater power supply circuit. 2 ... Hot water outlet part, 3 ... Overheat detector 4 ... Water supply port part, 5 ... Heater 6 ... Thermostat, 6a ... Temperature sensitive device 7a ... Tank ceiling surface, 8 ... Partition wall

Claims (1)

[Scope of utility model registration request] 1. A hot water tank of a hot water cleaning device, comprising: a hot water washing device provided at an upper part of the tank, and an overheat detector provided near the hot water washing device. A partition wall for partitioning and holding a water area directly above the heater is vertically provided to the gate and the overheat detector, and a lower end of the partition wall is extended deeper than a retained water level of the superheated hot water. Hot water tank for hot water cleaning equipment.