JPS62134456A - Forced circulation type heat source apparatus - Google Patents

Abstract

PURPOSE:To enable the feed of hot water, pouring of hot water, and additional heating of bath through a single heat source apparatus, by a method wherein hot water from a hot water feeding heat exchanger is divided into feed hot water and hot water poured to a bath tub, and reverse flow of foul water and direct coupling of the water feed side to the foul water side are prevented from occurring during the feed of water, the feed of hot water, stop of pouring of hot water, and stop of an electromagnetic valve. CONSTITUTION:The titled heat source apparatus comprises an additional bath heating heat exchanger 3, heating a burner and forcibly circulating bath water and the like, a hot feed water heat exchanger 2, heated by a burner, and a hot feed water coupling 23, connected to the outlet side of the hot feed water heat exchanger 2 and having a 2-way outlet. An inlet is communicated with the one outlet of the hot feed water joint 23, and an electromagnetic valve 37, having an air intake part 42 capable of being opened so as to take in air during the stop of the feed of water and hot water, or stop of motion of a valve, and a hot feed water joint, communicated to an outlet 38 of the electromagnetic valve 37 and connected to a hot water pouring circuit, are mounted in the middle of a feed water passage 43 of a body 41. This constitution enables provision of function to feed hot water, to pour hot water, and to re-heat bath water through a single heat source apparatus, and prevents foul water from flowing reversely from a hot water pouring circuit, e.g., bath tub, or being coupled directly.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to the configuration of a forced circulation heat source device having a pouring circuit.

2. Description of the Related Art Conventionally, forced circulation type heat source equipment has a configuration as shown in Figs. 5, 6, and 7. It consisted only of a bath reheating circuit that circulated and heated the water.

An example will be described below with reference to this drawing. Inside the booth 1, there are a hot water heat exchanger 2 and a reheating heat exchanger 3, and the upper parts of both heat exchangers are connected to an exhaust pipe 4 and an exhaust receiver 6 and an exhaust pipe 7 via a connecting pipe 5. The connecting tube 5 has an exhaust air 7 and an 8 attached thereto.

Also, under both heat exchangers, a gas block 10 is attached to the gas joint 9 attached to the booth 1, and a gas pipe A11, a gas pipe B12, and a gas nozzle holder 13 are installed.
It is connected to the burner unit 14 via. This burner unit 14 includes a flame rond unit 1.
5. 111 spark plug unit 16! l) Tsuketakaha: x-=t A17 and cover unit soto B18 are installed and connected to both heat exchangers to form combustion chambers on the hot water supply side and hot water side. In this configuration, the hot water supply heat exchanger circuit and the additional heat exchanger circuit will be explained. The supplied water passes through a water supply joint 19 attached to the case 1, a water control unit 720, and a water supply pipe 21, and enters the hot water heat exchanger 2. The heat-exchanged hot water passes through the hot water supply pipe 22 and exits from the hot water supply joint 23 to form a hot water supply circuit for supplying hot water and dropping into the bathtub 24.

On the other hand, the water or hot water in each tank 24 passes from the return side of the circulation port 25 to the return side of the circulation pipe 27, enters the machine from the bathing joint 28 attached to the case 1, and is passed through the water control block 29 and the hot water hose A30. , a circulation pump 31, and a low hose B32 containing hot water, and enters the repulsion heat exchanger 3.

The hot water heat-exchanged here exits the machine from the hot water outlet vibe 33 and the hot water outlet joint 34, passes through the incoming side of the circulation vibe 27, enters the bathtub 24 from the inlet side of the circulation port 25 of the bathtub 24, and enters the recirculation circuit. Form.

Problems to be Solved by the Invention However, with the above configuration, hot water cannot be poured into the bathtub 24 due to the functions and configuration of both hot water supply and replenishment. That is, the hot water supply side is the dropping of hot water into the bathtub 24, and the hot water supply side is the circulation of the hot water in the bathtub 24.
If the hot water heat exchanger 2 and the reheating heat exchanger 3 are directly connected to the rain side circuit, there is a risk that the waste water from the bathtub will flow back into the hot water circuit. There was a problem that the sewage in the 24 and the hot water supply circuit were connected and could not be legally approved. The invention solves these conventional problems, and is configured so that hot water from a hot water heat exchanger is branched into a hot water supply side and a hot water pouring side before exiting the machine through a hot water joint attached to the case. It is something to do.

Means to Solve the Problems The hot water supply joint attached to the forced circulation heat source machine of the present invention, which solves the above problems, has the interior of the joint configured so that hot water branches, and one outlet exits outside the machine to supply hot water. The other side is connected to a solenoid valve equipped with an air intake part equipped with a valve body that opens and closes depending on the water supply pressure, in the middle of a water supply passage formed in the body via pouring pipe A, and further connected to pouring pipe B. The system is configured so that hot water is connected to a hot water pouring joint provided in the case and taken out of the machine, and then supplied to the bathtub through a pipe that connects the bathtub and the heat source device in parallel with the circulation pipe.

Effect: According to the above means, the hot water discharged from the hot water heat exchanger can be divided into hot water that passes through the hot water supply joint and water that is poured into the bathtub through the solenoid valve and the hot water pouring joint. can. Furthermore, when the water supply, hot water supply, or pouring of hot water is stopped, or when the solenoid valve is stopped, the air intake section provided in the solenoid valve acts to prevent backflow of waste water and direct connection between the water supply side and the waste water side.

EXAMPLE Hereinafter, a forced circulation heat source device according to an example of the present invention will be described with reference to the drawings.

Note that functional parts that are the same as those of the conventional example described above are given the same reference numerals, detailed explanations are omitted, and different parts will be mainly explained.

That is, as shown in FIGS. 1, 2, 3, and 4,
The heat-exchanged hot water is transferred from the hot water heat exchanger 2 to the hot water pipe 2.
2 and enters the hot water supply joint 23. The hot water supply joint 23 of the heat source device of the present invention branches the hot water going to the hot water supply circuit and the hot water pouring circuit, which are different from conventional examples. That is, the hot water that has entered the hot water supply joint 23 passes through the inside of the joint and exits the machine and is used for hot water supply or bathtub 24.
What goes to the hot water circuit for dropping into the hot water supply joint 23
The hot water flows through the pouring water pipe A36, solenoid valve 37, and hot water pouring pipe B38 connected to the case 1, exits the machine via the hot water pouring joint 39 connected to the case 1, and runs in parallel with the circulation pipe 27 to the bathtub 24 and the heat source equipment. The bathtub 2 is connected by a pipe 40 that connects the hot water joint 39.
4, which forms the pouring circuit. That is,
A single heat exchanger can perform both hot water supply and pouring functions. Furthermore, the solenoid valve 37 attached to the heat source device of the present invention can be used to prevent backflow of sewage from the bathtub 24 or direct connection between the sewage and the hot water supply side when water supply, hot water supply, or pouring is stopped, or when the solenoid valve is stopped. An air intake section 42 provided in the body 41 acts. That is, the water supply passage 4 of the body 41
3, when the water supply, hot water supply, or pouring is stopped or when the solenoid valve a7 stops operating, the valve 44 rolls under its own weight and supplies air through the passage 45 to the overflow joint 46 attached to the case 1 and the air intake part 42. The hot water is taken in from the connecting hose 47 and replaced with hot water inside the body and the hot water pouring pipe B38, creating an air layer at this location to prevent sewage from flowing backwards or from being directly connected to the hot water supply side. Further, this air layering part 42 normally comes into contact with the sealing material 48 under the pressure when water is supplied, and the passage 45 is closed, so that there is no possibility of water leakage or suction of air.

Effects of the Invention The forced circulation heat source device of the present invention configured as described above provides the following effects.

(1) Hot water supply, hot water pouring, and hot water reheating functions can be obtained with one heat source device.

(2) There is no backflow or direct connection of sewage from the pouring circuit of a bathtub, etc., and extra work such as hopper construction to separate sewage and water supply outside the machine is no longer necessary, simplifying the overall system configuration.

[Brief explanation of drawings]

Fig. 1 is a front internal view of a forced circulation type heat source device according to an embodiment of the present invention, Fig. 2 is a side internal view of the same, Fig. 3 is a system diagram of the same, Fig. 4 is a sectional view of a solenoid valve, and Fig. 5 is a cross-sectional view of a solenoid valve. The figure shows the front interior view of a conventional forced circulation heat source equipment, Figure 6 is the same side interior view, and Figure 7
The figure is a diagram of the same system. 1...booth, 2...hot water heat exchanger,
2a... Hot water supply joint, 36... Hot water pouring pipe A, 37... Solenoid valve, 38... Hot water pouring pipe B139... Note Hot water connection port, 41...
...Solenoid valve body, 42...Air stratification inlet,
43...Water supply passage, 46...Overflow joint, 47...Hose. Name of agent: Patent attorney Toshio Nakao and 1 other person No. 1
Figure 2 Figure 3 Figure 34, 37 Figure 5 Figure 6

Claims (1)

[Claims] A reheating heat exchanger that is heated by a burner and forcibly circulates bath water, etc.; a hot water heat exchanger that is heated by a burner;
A hot water supply joint is connected to the outlet side of the hot water heat exchanger and has outlets in two directions, and an inlet is communicated with one outlet of the hot water supply joint, and a water supply, hot water supply,
A solenoid valve having an air intake part that can be opened to take in air when pouring is stopped or the operation of the valve is stopped, and a pouring joint that communicates with the outlet of the solenoid valve and connects to the pouring circuit. Forced circulation heat source equipment.