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Outside external burner

A combustion device and the main shell technology, which is applied in the field of outdoor installation type combustion devices, can solve the problem that the combustion deterioration cannot be completely eliminated, and achieve the effect of maintaining combustion performance

Inactive Publication Date: 2005-11-16
PALOMA KOGYO KK
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] However, when a strong wind (so-called headwind) is blown to the air supply and exhaust part, the exhaust gas discharged from the exhaust pipe will return to the air supply port, so the combustion deterioration may not be completely eliminated.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0038] like figure 1 , figure 2 As shown, the outdoor water heater 1 as Embodiment 1 of the present invention is set up like this: an inner body 5 is arranged inside the casing 2 (equivalent to the appliance main body casing of the present invention), and a combustion chamber is formed inside the inner body 5. 3. A spiral water supply pipe 4 is wound on the outer peripheral surface of the combustion chamber 3 . The water supply pipe 4 is connected to the heat absorption pipe 7 of the heat exchanger 6 arranged on the upper part of the inner body 5, and the heat exchanger 6 is heated by the burner 8 arranged under the inner body 5 to convectively overheat The water in the heat absorption pipe 7 of the exchanger 6 is heated so that hot water can flow out from a hot water outlet pipe (not shown) connected to the outlet side of the heat absorption pipe 7 . An air supply chamber 9 is formed at a lower portion of the combustion chamber 3 , and a fan 10 is provided in the air suppl...

Embodiment 2

[0055] Below, combine Figure 5 The water heater 201 of Example 2 is demonstrated. In addition, parts that are different from those in Embodiment 1 will be described, and the same reference numerals will be assigned to overlapping parts, and descriptions thereof will be omitted.

[0056] In the water heater 201 of the second embodiment, the angle X' of the conical surface at the front end of the backwind prevention plate 219 is reduced to the same angle as the inclination angle Y of the front end side of the exhaust tube 15 to form an exhaust air flow. The straightening portion 227 has a constant width of the passage (the distance between the exhaust pipe 15 and the backwind preventing plate 219 ). In the rectification part 227, the width of the exhaust passage is fixed, and the air flow of the exhaust gas is rectified from turbulent flow to laminar flow, so that the exhaust gas discharge can be diffused further.

[0057] In addition, when the length L of the rectification p...

Embodiment 3

[0059] Below, combine Image 6 , Figure 7 The water heater 301 of Example 3 is demonstrated. Figure 7 Yes Image 6 A view from direction A. In addition, parts that are different from those in Embodiment 1 will be described, and the same reference numerals will be assigned to overlapping parts, and descriptions thereof will be omitted.

[0060] In the water heater 301 of the third embodiment, the angle X of the conical surface of the backwind prevention plate 319 and the inclination angle Y of the tip of the exhaust tube 15 are made to be the same angle. And, between the front end expansion pipe portion 18 of the exhaust tube 15 and the backwind prevention plate 319, a guide barrier 328 is provided. The guide barrier 328 is formed into a ring shape with a flat plate having a substantially V-shaped cross section, and the guide barrier 328 The expanded portion of the stopper 328 is provided facing outward. The guide partition 328 divides the exhaust passage into two annula...

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PUM

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Abstract

An object of the present invention is to prevent the exhaust gas from being mixed into the air supply side when there is a headwind. According to the water heater (1) of this embodiment, by setting the conical backwind preventing plate (19) in the exhaust passage, the area S0 of the exhaust port is smaller than the area S1 of the exhaust passage in the exhaust tube (115), so that the exhaust The flow velocity (extrusion velocity) of the gas is increased, and the exhaust gas discharge can be spread far away. As a result, it is possible to prevent the exhaust gas from being mixed into the air supply port (16) at the time of headwind, and it is possible to maintain good combustion performance. Moreover, since the air outlet (17) has a backwind preventing plate (19), it can prevent wind from directly blowing into the air outlet (17). Therefore, even in a strong wind, exhaust can be smoothly performed, and good combustion performance can be maintained.

Description

technical field [0001] The present invention relates to an outdoor installation type combustion device which is provided with an air supply port for introducing combustion air and an exhaust pipe for discharging generated exhaust gas on a main body casing of the appliance. Background technique [0002] For example, a combustion device such as a water heater accommodates an inner body having a combustion chamber and a heat exchanger in a box-shaped appliance body casing that can be installed on a wall, etc., wherein the combustion chamber has a burner as a heating unit, and the front surface of the appliance body casing An air supply port for combustion air introduced into the burner is formed, and an exhaust pipe for exhausting combustion gas generated from the combustion chamber to the outside of the appliance main body casing is opened. Here, when the positions of the air supply port and the exhaust tube are too far apart, the balance of the air supply and exhaust cannot b...

Claims

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Application Information

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IPC IPC(8): F23L17/04F23L17/00F24H9/02
Inventor 小林敏宏
Owner PALOMA KOGYO KK
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