JPH02306057A - Liquid heating device - Google Patents

Abstract

PURPOSE:To improve the thermal efficiency by directly supplying hot gas from a cutout in the guide member to the hot gas passage segment opposite to the exhaust gas line inlet without passing through the upper wall of the heat transmission section. CONSTITUTION:A hot gas passage 7 is formed in the interior space 3 of the heating surfaces 2a, 2b over the entire length between the guide member 6 and the circumferential wall 2a of the heat transmission sections 2a, 2b. An exhaust gas passage 8 is connected to the underside of a part of the hot gas passage 7, and a cutout 9 is formed in the guide member 6 opposite to the inlet 8a of the exhaust gas passage 8 to allow the hot gas to flow from inside the guide member 5 to the circumferential wall 2b of the heat transmission sections 2a, 2b so that the adverse effect by draft in the exhaust gas passage 8 may be sufficiently controlled and the hot gas may be sufficiently supplied to the entire part of the hot gas passage 7 so as to allow the hot gas to come in contact with the entire circumferential wall 2b.

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention provides an upwardly protruding hollow structure on the bottom wall of a heating tank that accommodates various types of liquids to be heated, such as oil and water for heating food. A heat transfer part is formed, and a guide member is provided in the internal space of the heat transfer part to guide high temperature gas from the burner to the upper wall of the heat transfer part, and a guide member is provided between the guide member and the peripheral wall of the heat transfer part. The present invention relates to a liquid heating device in which a high-temperature gas passage is formed over the entire circumference of the liquid heating device, and an exhaust gas passage is connected to a portion of the high-temperature gas passage.

[Conventional technology]

Conventionally, as shown in Japanese Patent Application Laid-Open No. 61-8555,
The guide member is formed into a vertical cylinder shape, and after the entire amount of high-temperature gas from the burner comes into contact with the upper wall of the heat transfer section, it descends in the high-temperature gas flow path that extends around the entire circumference of the guide member and reaches the entrance of the exhaust gas path. The heat transfer area is increased and the residence time of the high-temperature gas in the heat transfer portion is increased, thereby improving thermal efficiency.

[Problem to be solved by the invention]

However, because the exhaust gas passage is connected to a portion of the high-temperature gas passage, the draft from the exhaust gas passage does not act evenly on the high-temperature gas passage, and is biased toward the part of the high-temperature gas passage near the entrance of the exhaust gas passage. The flow of high-temperature gas creates a dead space on the opposite side of the exhaust gas path from the entrance, making it difficult to increase the heat transfer area and the residence time of high-temperature gas as desired, leaving room for further improvement. was there.

An object of the present invention is to enable sufficient supply of high temperature gas from inside the guide member to the entire high temperature gas flow path, thereby sufficiently increasing the heat transfer area and the residence time of the high temperature gas. It is in.

[Means to solve the problem]

A characteristic configuration of the present invention is that, in a guide member for guiding high temperature gas to the upper wall of a hollow heat transfer portion protruding above the bottom wall of the heating tank, a gap between the guide member and the peripheral wall of the heat transfer portion is provided. A notch is provided on the opposite side of the inlet of the exhaust gas passage connected to a part of the high temperature gas flow passage extending around the entire circumference to allow the flow of high temperature gas from the inside of the guide member toward the peripheral wall of the heat transfer part. Its functions and effects are as follows.

[For production]

In the conventional configuration described above, it was difficult to supply high-temperature gas due to the adverse effects of the draft in the exhaust gas passage. By supplying the gas directly without passing through the upper wall, not only can the high temperature gas be brought into sufficient contact with the entire upper wall of the heat transfer section due to the action of the guide member, but also the high temperature gas can be supplied directly to the upper wall of the heat transfer section by the action of the guide member. The high-temperature gas can be supplied to the entire circumference of the high-temperature gas flow path so as to be brought into contact with the entire peripheral wall of the heat transfer section.

Therefore, it is possible to reliably increase the heat transfer area and increase the residence time of the high temperature gas in the heat transfer portion as desired, and it is possible to sufficiently and reliably achieve an improvement in thermal efficiency.

(Effects of the Invention) As a result, it has become possible to provide a liquid heating device with extremely high thermal efficiency and even higher performance.

〔Example〕

Next, an embodiment will be shown with reference to FIGS. 1 to 3.

Hollow heat transfer parts (2a, 2b) protruding upward are formed on the bottom wall of the heating tank (1) that accommodates the liquid to be heated, and the internal space (3) of the heat transfer parts (2a, 2b) is It is closed by the bottom plate (4) and the high temperature gas from the burner (5) is transferred to the heat transfer parts (2a, 2b).
The guide member (6) leading to the upper wall (2a) of the bottom plate (4)
The internal space (3
), and by the action of the guide member (6), the upper wall (2a)
The structure is such that high temperature gas comes into contact with the entire structure.

Guide member (6) and peripheral wall (2a) of heat transfer section (2a, 2b)
A high-temperature gas flow path (7) is formed in the internal space (3) of the heat transfer part (2a, 2b), and an exhaust gas flow path (7) is formed in the lower part of the high-temperature gas flow path (7). 8), and the high temperature gas sent to the upper wall (2a) descends in the high temperature gas flow path (7) while passing through the inlet (8) of the exhaust gas path (8).
It is configured to flow toward a) and contact the peripheral wall (2b).

A heat transfer portion (2a) is installed from inside the guide member (5) on the opposite side of the guide member (6) from the inlet (8a) of the exhaust gas path (8).
, 2b) to allow the flow of high-temperature gas toward the peripheral wall (2b) of the exhaust gas passage (
7) It is configured to supply a sufficient amount of high-temperature gas to the entire peripheral wall (2b) and to bring the high-temperature gas into contact with the entire peripheral wall (2b).

A part of the heating tank (1) extends downward from the bottom plate (4) (
1a), and is configured to allow solids in the liquid to be heated, such as oil scum in cooking oil, to settle and accumulate in the cold zone in the extension part (1a), and has a porous reservoir for collecting solids. A container (10) is placed inside the extension (1a), and a cock (11) for taking out the heated liquid is attached to the extension (la).

[Another example]

Next, another embodiment will be described.

The liquid heating device can be used for any purpose, such as fryers,
It can be applied to heating cooking equipment such as boiled noodle machines and other various heating purposes.

Heat transfer parts (2a, 2b), guide members (6), and notches (9)
) can be changed appropriately in shape, size, arrangement, number of installations, etc.

Configuration for supplying high-temperature gas from the burner (5) to the inside of the guide member (6), type of burner (5), heating tank (1)
), the arrangement of the exhaust gas passage (8), and other aspects, the structure of the liquid heating device can be freely selected.

Incidentally, although reference numerals are written in the claims section for convenient comparison with the drawings, the present invention is not limited to the structure shown in the accompanying drawings.

[Brief explanation of drawings]

The drawings show an embodiment of the present invention, in which FIG. 1 is a sectional view, FIG. 2 is a view taken along the line ■--■ in FIG. 1, and FIG. 3 is a view taken along the line mm in FIG. 2. (1)... Heating tank, (2a, 2b)...
・Heat transfer part, (2a)...Top wall, (2b)...
... Peripheral wall, (3) ... Internal space of heat transfer part,
(5)... Burner, (6)... Guide member, (7)... High temperature gas flow path, (8)...
...Exhaust gas path, (8a)...Entrance of exhaust gas path,
(9)...Notch. Figure 3

Claims (1)

[Claims] Hollow heat transfer portions (2a, 2b) projecting upward are formed on the bottom wall of a heating tank (1) that accommodates a liquid to be heated, and the heat transfer portions (2a, 2b) In the internal space (3) of the burner (5)
The high temperature gas from the upper wall of the heat transfer section (2a, 2b) (
2a), and a peripheral wall (2b) of the guide member (6) and the heat transfer section (2a, 2b).
A high-temperature gas flow path (7) located over the entire circumference is formed between the high-temperature gas flow path (7), and an exhaust gas flow path (
8) is connected to the inlet (8) of the exhaust gas path (8) of the guide member (6).
8a), a notch (9) is formed on the opposite side of the guide member (6) to allow the flow of high temperature gas from the inside of the guide member (6) toward the peripheral wall (2b) of the heat transfer portion (2a, 2b). liquid heating device.