JPH0614739U - Hot water heater - Google Patents

Abstract

(57) [Summary] [Purpose] To obtain a hot water heater in which two built-in burners do not affect each other. [Structure] Inside a main body 1, a burner 3 has an upper part as a combustion chamber 4, and heat exchange devices 2 provided with a heat exchanger 5 are arranged on the left and right. A cistern 16 and a circulation pump 17 for respectively storing hot water are provided, and the heat exchanger 5 to the cistern 16,
Circulation pump 17 and heat exchanger 5 through a load (not shown)
To form a closed pipe line. An air supply chamber 6 and a flue 7 are formed on the lower surface of the top plate of the main body 1, the air supply chamber 6 is provided with a partition wall 6a and divided into left and right, and supply cylinders 11a and 11b are respectively erected to form the flue 7. A partition wall 7a is provided to divide the exhaust pipe 10 into left and right parts.
a and 10b are erected. The openings of these cylinders are provided with a difference in the height direction and partitioned by a separating plate 19, and a windproof cylinder 20 forms a separable air supply / exhaust cylinder 9.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a hot water heater, and more particularly to a structure of a supply / exhaust path of a burner.

[0002]

[Prior art]

 As a hot water heater that uses two forced air supply / exhaust type combustors that take in combustion air from the outside and release combustion exhaust gas to the outside, there is the one shown in the configuration diagram of FIG. As shown in the figure, heat exchangers 2 in which a heat exchanger 5 is provided in the combustion chamber 4 are disposed on the left and right sides in the main body 1 with the upper portion of the burner 3 as the combustion chamber 4. One end of each heat exchanger 5 faces the outside of the main body 1 and serves as an inlet end for hot water, and the other end opens at an upper part of a cistern 16 for storing heated hot water. The lower part of the systern 16 is connected to the suction side of the circulation pump 17, and the discharge side of the pump 17 faces the outside of the main body 1 to serve as the outlet end of the hot water. It forms a closed pipe line that is connected to the heat exchanger 5 through an unloaded load. In the upper part of the main body 1, there is an air supply chamber 6 formed by attaching an oblong lid-shaped partition wall on the lower surface of the top plate upward, and an elliptic partition wall smaller than the air supply chamber 6 and having a lid-like partition wall. A flue 7 is formed by mounting it downwards toward the bottom of the flue 7. An exhaust pipe 10 is erected on the central upper surface of the flue 7 to communicate with the outside, and the exhaust pipe 10 is concentric with the pipe 10 from the air supply chamber 6. A supply cylinder 11 is erected to form a supply / exhaust cylinder 9. On the other hand, a flue pipe 12 is erected on the upper part of the combustion chamber 4 and connected to the flue 7, a fan 13 is arranged on the bottom of the main body 1, and the outlet side is connected to the lower part of the burner 3 by a blower pipe 14. The inlet side is connected to the air supply chamber 6 by the air supply pipe 15. In the combustion apparatus configured as described above, liquid or gas fuel is supplied to the burner 3 from a fuel tank or piping (not shown), and combustion air is taken in from the cylinder 11 by the fan 13 to supply the air to the air supply chamber. 6, the gas is supplied through the air supply pipe 15 and the blower pipe 14 and burns in the combustion chamber 4, and the combustion waste gas is discharged to the outside through the flue pipe 12, the flue 7, and the exhaust pipe 10. However, when only one of the two sets of hot water generators, for example, only the right side, is operated, the air supply chamber 6 is decompressed and the flue 7 is pressurized by the draft of the operation and combustion of the fan 13. Therefore, the combustion exhaust gas on the right side flows back to the air supply side via the flue pipe 12, the combustion chamber 4, the fan 13, and the air supply pipe 15 on the left side, which causes combustion failure and the combustion chamber on the left side. It has the drawback of contaminating, etc. It is installed outdoors and is encouraged when it receives wind.

[0003]

[Problems to be solved by the device]

 The present invention has been made in view of the problems of the above-described conventional example, and an object thereof is to provide a hot water heater that does not affect each other during one-sided operation.

[0004]

[Means for Solving the Problems]

 In order to solve the above-mentioned problems, in the present invention, a burner and a heat exchange device in which a heat exchanger is arranged in a combustion chamber provided above the burner, a cistern for storing heated hot water, and a circulation pump are provided in a main body. In a hot water heater that accommodates two sets and has the above-mentioned burner supply / exhaust pipes at the top of the main body to supply combustion air and exhaust combustion exhaust gas, supply the combustion air to the two burners and exhaust combustion. The feature is that the gas exhaust is separated by providing partition walls for each.

[0005]

[Action]

 Since the two burners are supplied and exhausted separately, they do not affect each other.

[0006]

【Example】

 Hereinafter, an embodiment of a hot water heater according to the present invention will be described with reference to FIGS. 1 is a front sectional view of a main part of the hot water heater, FIG. 2 is a plan view taken along the line AA of FIG. 1, and FIG. 3 is a side view taken along the line BB of FIG. As shown in FIG. 1, two combustion chambers 4 arranged in the main body 1 communicate with a flue 7 via a flue pipe 12, respectively, and an air supply chamber which communicates with an intake side of a burner 3 above the flue 7. 6 is located. The flue 7 and the air supply chamber 6 are divided into left and right by partition walls 7a and 6a with reference to FIGS. 1 and 2, an exhaust pipe 10a is erected concentrically on the right side of the flue 7 divided by a partition wall 7a, and an exhaust pipe 10b is erected on the left side thereof. A supply cylinder 11a is provided on the right side of the air supply chamber 6 partitioned by the partition wall 6a, and a supply cylinder 11b is provided on the left side of the air supply chamber 6 independently. As shown in FIG. 3, the upper portions of the exhaust cylinders 10a, 10b and the supply cylinders 11a, 11b are configured to be separable above the main body 1 to form a supply / exhaust cylinder 9. As shown in detail in FIG. 1, each cylinder has a separating plate 19 below the open end. That is, the exhaust pipe 10a fixes the separation plate 191 by welding below the opening end. Similarly, the exhaust pipe 10b has a separation plate 192, the air supply pipe 11a has a separation plate 193, and the air supply pipe 11b has a separation plate 194. The outer diameters of these separating plates 19 are finished to have the same shape and dimension, and a hanging portion is provided on the periphery. The separating plate 193 has a through hole through which the exhaust pipe 10b passes, and the separating plate 194 has a through hole through which the exhaust pipe 10b and the air supply pipe 11a pass. The air supply pipe 11a is inserted into the through hole of the separation plate 194 fixed to the air supply pipe 11b so that the open ends thereof are located above the air supply pipe 11b, the air supply pipe 11a, the exhaust pipe 10b, and the exhaust pipe 10a in this order. The separation plate 193 is located with a gap from the opening of the air supply pipe 11b, and the exhaust pipe 10b is inserted into the through hole of the separation plate 193 fixed to the air supply pipe 11a and the through hole of the separation plate 194, and then the exhaust pipe 10b. The exhaust pipe 10a is placed inside 10b, and a gap is provided between the separating plate 191 and the open end of the exhaust pipe 10b. Finally, a non-perforated upper surface is provided to form a through hole 20a on the peripheral side, and a square tube or a cylindrical windbreak tube 20 that circumscribes the separating plate 19 is covered and fixed to the separating plate 19 with screws or welding. Unify. The through hole 20a is formed in a position above the space defined by the separating plate 19, and the separating plate above each opening surrounds the circumferential side of the opening with a gap and winds down. A cylinder 18 is attached.

Therefore, for example, when only the right side is operated, the burner 3, the fan 13 and the circulation pump 17 are operated, and the hot water that has become high temperature due to heat exchange in the heat exchanger 5 is converted into a cistern 16 by the circulation pump 17. , Is heated by circulating it back to the heat exchanger 5 through a load (not shown), and the combustion air is taken in from the supply cylinder 11a by the fan 13 and passes through the right side of the air supply chamber 6, the air supply pipe 15, and the blower pipe 14. It is supplied to the burner 3 and burned in the combustion chamber 4, and the combustion waste gas is discharged outdoors through the flue pipe 12, the right side of the flue 7 and the exhaust stack 10a. At that time, the right side of the flue 7 is pressurized, but the left side of the flue 7, which is separated from this by the partition wall 7a, communicates with the outside through the exhaust stack 10b, so that the atmospheric pressure is maintained and the air supply chamber is maintained. The pressure on the right side of 6 is reduced, but the left side of the air supply chamber 6 which is separated by the partition wall 6a communicates with the outside through the cylinder 11b, so that normal pressure is maintained. As described above, since both have independent flow paths and the openings of the supply cylinder and the exhaust cylinder are separated by the separating plate 19, the contamination of the left combustion chamber 4 due to the inflow of combustion waste gas is prevented. Neither will it occur, nor will combustion failure due to backflow in the right combustion chamber 4 occur. Even if it is installed outdoors, there is no difference between the one-sided operation and the two-sided operation due to wind, and the air supply / exhaust cylinder 9 prevents it.

[0008]

[Effect of device]

 The flue and the air supply chamber are divided into the left and right, and the air supply and exhaust passages of the two burners are separated by providing the air supply cylinder and the exhaust pipe respectively, so combustion failure caused by mutual influence during one side operation occurs. In addition, contamination, corrosion, etc. are prevented, and the four supply cylinders and the exhaust stack are integrated into the supply / exhaust stack, so that the handling can be simplified.

[Brief description of drawings]

FIG. 1 is a front sectional view of a main part of a hot water heater according to the present invention.

FIG. 2 is a plan view of a main part taken along the line AA of FIG.

FIG. 3 is a side view of a main part, taken along the line BB of FIG.

FIG. 4 is a configuration diagram of a hot water heater according to a conventional example.

[Explanation of symbols]

 1 Main Body 2 Heat Exchanger 3 Burner 4 Combustion Chamber 5 Heat Exchanger 6 Air Supply Chamber 6a Partition Wall 7 Flue 7a Partition Wall 9 Air Supply / Exhaust Cylinder 10 Exhaust Cylinder 11 Supply Cylinder 18 Wind Barrel 19 Separation Plate 20 Windproof Tube 20a Through Hole

Claims (2)

[Scope of utility model registration request] 1. A burner and a heat exchange device in which a heat exchanger is arranged in a combustion chamber provided above the burner, two sets of a cistern for storing heated hot water, and a circulation pump are accommodated in the main body, and the heat exchanger is provided in the upper part of the main body. In a hot water heater including a supply / exhaust cylinder of the burner for supplying combustion air and exhausting combustion exhaust gas, a supply chamber communicating with the intake side of the burner and a supply cylinder standing in the supply chamber And a partition wall that divides the air supply chamber into left and right is provided and the supply cylinder is provided in each partition, and a flue communicating with the two combustion chambers and an exhaust pipe that stands upright in the flue are provided. A hot water heater characterized in that a partition wall for dividing the flue into left and right is provided and the exhaust pipe is arranged in each section. 2. The supply cylinder and the exhaust cylinder are each provided with a separating plate below an opening end thereof, and are arranged with a height difference, and are partitioned by the separating plate to open in different partitions. 2. The hot water heater according to claim 1, further comprising a windbreak cylinder having a through hole facing the compartment, and an air supply / exhaust cylinder integrated with the separation plate fixed to the windbreak cylinder.