JP4275031B2 - Heat source equipment - Google Patents

Description

  The present invention relates to a heat source device that circulates and supplies a heated heat medium liquid to a radiator such as a floor heating panel, and in particular, a liquid chamber for storing the heat medium liquid is formed between the inner and outer cylinders. The present invention relates to a horizontally installed heat source device in which a combustion chamber is formed.

Conventionally, in this type of heat source device, a liquid chamber for storing a heat transfer medium is formed between an inner cylinder and an outer cylinder, and a can body installed sideways in which a combustion chamber is formed inside the liquid chamber, A burner provided at one end side of the combustion chamber of the can body, and a circulation pump for circulating the heat medium liquid in the liquid chamber to the radiator and then returning the liquid to the liquid chamber, and the return opening of the liquid chamber is near the burner There is known a heat source device having a configuration in which the can body is provided at a lower portion on one end portion side and the outlet portion of the liquid chamber is provided on the other end portion side of the can body (see Patent Document 1). .
JP 2004-28441 A

  By the way, in the heat source device of the above-described conventional configuration, as shown in FIG. 4, a floor heating panel or the like is provided below the burner in the can body 4 in which the liquid chamber 3 is formed between the inner cylinder 1 and the outer cylinder 2. A return port portion 5 is provided for returning the heat transfer medium after radiating heat to the liquid chamber 3. The return port portion 5 of this conventional configuration has a configuration in which the distal end portion of the return port tube 6 cut horizontally is penetrated through the outer body 2 and faces the liquid chamber 3. The heat transfer fluid that has flowed into the chamber 3 flows directly into the forward opening 7 of the can 4, and for example, local heating occurs in the upper portion of the liquid chamber 3 near the burner, the heat transfer fluid boils, and the boiler noise phenomenon May occur.

  The squealing noise phenomenon due to the boiling of the heat transfer fluid as described above is particularly the amount of circulation of the heat transfer fluid supplied to the floor heating panel when the room temperature or floor temperature of the room where the floor heating panel is installed approaches the set temperature. This occurred when the burner combustion amount had not yet decreased to the minimum combustion amount.

  The present invention has been made in view of the above-described circumstances, and an object thereof is to prevent local heating and boiling in a liquid chamber with a simple configuration by devising the shape of a return port portion.

According to the first aspect of the present invention, a liquid chamber for storing the heat transfer fluid is formed between the inner cylinder and the outer cylinder, and a can body installed sideways in which a combustion chamber is formed inside the liquid chamber, A burner provided at one end of the combustion chamber of the can body, and a circulation pump that circulates the heat medium liquid in the liquid chamber to the radiator and then returns it to the liquid chamber, and the return opening of the liquid chamber is closer to the burner In the heat source apparatus having a configuration in which the can is provided at a lower portion on one end side of the can body, and an outlet portion of the liquid chamber is provided on the other end side of the can body, the return port portion has an outer body. A return port pipe made of stainless steel pipe having an open surface through which the tip portion approaches or comes into contact with the inner cylinder and jets the heat transfer fluid toward one side in the circumferential direction of the inner cylinder. The open surface is formed by an inclined cut surface that is cut obliquely.

  In the present invention, since the heat medium liquid is ejected from the return port portion of the liquid chamber toward one side of the inner cylinder in the circumferential direction, the heat medium having a lowered temperature after the heat dissipation is ejected from the return port portion. The liquid does not flow as it is to the outlet that is the outlet of the liquid chamber, but flows in one direction in the circumferential direction of the inner cylinder to form a swirling flow, and can diffuse the high-temperature heat transfer liquid that tends to stay in the upper part of the can body. The squealing noise phenomenon caused by local heating boiling in the liquid chamber can be suppressed with a simple configuration.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. FIG. 1 is an explanatory view of the internal structure of a heat source device according to an embodiment of the present invention, and FIG.

  1 and 2, 10 is a heat source device used for hot water heating such as floor heating, 11 is an exterior body, 12 is a top plate of the exterior body 11, and 13 is a bottom plate. Reference numeral 14 denotes a circulation pump provided in the lower part of the exterior body 11, 15 denotes a reserve tank installed above the circulation pump 14, and 16 denotes a can body installed sideways above the reserve tank 15.

  Reference numeral 17 denotes an oil vaporization type burner which vaporizes and burns petroleum fuel such as kerosene attached to one end of the can body 16. The oil vaporization type burner 17 has a combustion amount ranging from a maximum combustion amount to a minimum combustion amount. It is variable in range.

  Reference numerals 18 and 19 denote support plates whose lower ends are fixed to the bottom plate 13 and are erected in the exterior body 11 with a space therebetween. A mounting plate 20 on which the reserve tank 15 is placed between the support plates 18 and 19 is provided. It is constructed, and the left and right ends of the can body 16 are supported on the support plates 18 and 19. A cap receiving body 22 provided with a pressure cap 21 is attached to the upper portion of the can body 16.

  A pipe (not shown) is connected between the cap receiver 22 and the reserve tank 15, and replenishing water for circulation is replenished from the reserve tank 15 to the can body 16 through the pipe. In addition, a flexible return pipe 24 is connected to the lower portion of the can body 16, and the return pipe 24 extends downward from the can body 16, bends at a right angle from an appropriate position, and extends rearward to extend the exterior body 11. It faces the outside.

  Reference numeral 25 denotes an electrical component such as an operation control device provided between the support plate 19 and the exterior body 11, and 27 denotes an operation unit that also serves as a display unit. The operation unit 27 includes a plurality of switches such as operation switches and the like. A plurality of display lamps and the like are provided.

  30 is a circulation pipe connected between the can 16 and the circulation pump 14, and 31 is a forward pipe connected to the discharge port side of the circulation pump 14, and the forward pipe 31 also extends rearward to It is exposed to the outside.

  33 is an oil leveler, 34 is an electromagnetic pump for fuel supply, and the fuel in the oil leveler 33 pumped up by the electromagnetic pump 34 is supplied to the burner 17 through a fuel supply pipe 35.

  36 is a burner blower for supplying combustion air to the burner 17, and 37 is an exhaust pipe for exhausting combustion exhaust gas of the burner 17 discharged from the inside of the can body 16 to the outside.

  Next, the can 16 will be described in detail. As shown in FIGS. 1 and 2, the can body 16 is provided between a cylindrical inner cylinder 39 and an outer cylinder 40 that is concentrically provided on the outside of the inner cylinder 39 with a space therebetween. A liquid chamber 41 for storing hot water (heat medium liquid) is formed, and a combustion chamber 42 is formed inside the liquid chamber 41, that is, in the inner body 39. The combustion exhaust gas in the combustion chamber 42 is After gathering in the exhaust case 44 through a large number of smoke pipes 43, 43 penetrating the liquid chamber 41, the air is exhausted from the exhaust pipe 37 to the outside.

  45 is a return port portion of the liquid chamber 41 provided in the lower part of the can body 16 close to the burner 17, and this return port portion 45 penetrates the outer body 40 as shown in FIG. A return made of stainless steel pipe having an open surface X for causing the warm water for circulation (heat transfer fluid) to be ejected toward one direction in the circumferential direction of the inner cylinder 39 while making the part approach or contact the inner cylinder 39 The mouth tube 46 is configured.

  The open surface X of the return port tube 46 is formed by an inclined cut surface cut at an inclination angle θ of about 45 degrees with respect to the vertical direction so as to be obliquely upward. Further, the return pipe 24 is connected to the lower part of the return port pipe 46.

  Reference numeral 47 denotes an outlet portion of the liquid chamber 41 provided at the upper part on the other end side of the can body 16. The outlet portion 47 is connected to the suction portion of the circulation pump 14 via the circulation pipe 30. Communicate.

  In the heat source device 10 configured as described above, when the burner 17 starts to burn, a flame F of the burner 17 is formed in the combustion chamber 42, and the combustion gas in the combustion chamber 42 passes through a number of smoke pipes 43, 43. Then, the circulating hot water (heat medium liquid) in the liquid chamber 41 is heated and heated, and is exhausted from the exhaust case 44 to the outside through the exhaust pipe 37.

  When the operation of the circulation pump 14 is started, the hot water for circulation (heat medium liquid) heated to about 40 to 60 ° C. by the can body 16 exits the forward opening portion 47 and enters the circulation pipe 30 and the circulation pump 14. And, for example, it is circulated to a radiator (not shown) such as a floor heating panel installed on the floor of the room through the forward pipe 31, and hot water heating is performed with this radiator, and the temperature after heat radiation with the radiator The lowered circulating hot water (heat medium liquid) passes through the return pipe 24 and is jetted back into the liquid chamber 41 from the open surface X at the tip of the return port pipe 46.

  Here, the temperature-reduced hot water for circulation (heat medium liquid), which has been discharged from the open surface X at the tip of the return pipe 46 into the liquid chamber 41, after the heat release, is connected to the outlet of the liquid chamber 41 as shown in FIG. Without flowing as it is to the forward opening portion 47, it flows toward one side in the circumferential direction of the inner cylinder 39 to form a swirling flow. By this swirling flow, the upper portion of the liquid chamber 41 close to the burner 17 (broken line in FIG. 1). The hot water for circulation (heat medium liquid) can be diffused so as not to stagnate in the area Y) shown in FIG. 6, and local heating boiling in the liquid chamber 41 is suppressed, and the boiler noise phenomenon caused by this local heating boiling Can be suppressed.

  In the above-described embodiment, the open surface X of the return port tube 46 is formed by an inclined cut surface cut at an inclination angle θ of about 45 degrees with respect to the vertical direction so as to be obliquely upward. However, for example, as shown in FIG. 3, half of the tip of the return tube 46 in the portion protruding into the liquid chamber 41 is deleted, and the upper surface and the right side surface (the right side surface in FIG. 3) are opened. Obviously, the present invention may be shaped, and the present invention is not limited to these embodiments.

It is explanatory drawing explaining the internal structure of the heat-source apparatus which shows one Embodiment of this invention. Similarly, it is a principal part vertical side view. It is a principal part vertical side view which shows other embodiment of a return port pipe | tube. It is a vertical side view which shows a prior art example.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 Heat source apparatus 14 Circulation pump 16 Can body 17 Burner 39 Inner cylinder 40 Outer cylinder 42 Combustion chamber 45 Return port part 46 Return port pipe 47 Outlet part X Open surface

Claims (1)

A liquid chamber for storing the heat transfer fluid is formed between the inner cylinder and the outer cylinder, a can body installed in a horizontal direction in which a combustion chamber is formed inside the liquid chamber, and one end side of the combustion chamber of the can body A burner provided, and a circulation pump that circulates the heat medium liquid in the liquid chamber to the radiator and then returns the liquid medium to the liquid chamber again. In the heat source device configured to be provided in the lower portion and the outlet portion of the liquid chamber is provided on the other end portion side of the can body, the return port portion penetrates the outer body and the tip portion thereof is connected to the inner portion. It is made up of a return pipe made of stainless steel pipe having an open surface for bringing the heat transfer fluid into one direction in the circumferential direction of the inner cylinder while approaching or contacting the cylinder, and the open surface is slanted A heat source device characterized in that it is formed by an inclined cut surface cut into two.

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