JP3670807B2 - High temperature regenerator - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to the structure of a high-temperature regenerator of an absorption refrigerator.
[0002]
[Prior art]
In conventional high-temperature regenerators installed in absorption refrigerators (including those called absorption cold / hot water machines)
(1) Reduce the production cost by reducing the number of liquid pipes installed in the combustion / heating chamber.
[0003]
(2) Facilitates the flow control of the absorbent.
[0004]
In view of the above, since a long liquid pipe is used, the vertical dimension is larger than the horizontal dimension.
[0005]
Therefore, as shown in FIG. 6, the upper body 400 containing the low-temperature regenerator 200 and the condenser 300 that constitute the absorption refrigerator together with the high-temperature regenerator 100, and the lower body containing the evaporator 500 and the absorber 600. Since it was difficult to sneak under 700, and it was disposed on the side of it, a large floor area was required for installation.
[0006]
[Problems to be solved by the invention]
Therefore, in order to reduce the installation floor area of the absorption refrigerator, the height of the high-temperature regenerator can be kept low without being lost in the flow of the absorption liquid and can be buried under the upper and lower bodies. There was a need.
[0007]
[Means for Solving the Problems]
In order to solve the above-described problems, the present invention provides a combustion / heating chamber that is surrounded by a furnace wall having a double wall structure at least on the upper and lower sides and the left and right sides, and an upper portion of the double wall that is erected in the combustion / heating chamber. Opened at the rear of the combustion / heating chamber, with a plurality of liquid pipes communicating with the gap and the lower gap, a sheet flame burner installed sideways facing the liquid pipe in front of the combustion / heating chamber A high-temperature regeneration of an absorption refrigerator that is configured to have an exhaust port and heats and concentrates the absorption liquid injected into the chamber with the flame generated by the planar flame burner and the combustion gas flowing toward the exhaust port In the chamber, the combustion / heating chamber is formed larger in the left-right direction than in the up-down direction, a planar flame burner is installed at the center in the left-right direction, and the rear upper part of the outer wall constituting the double wall The liquid header is formed by raising the Opened an outlet of the upper liquid absorbent of Dda, a first configuration of the high-temperature regenerator so as to open the outlet of the refrigerant vapor further above the absorption liquid flow outlet,
[0008]
In the high-temperature regenerator of the first configuration, a high-temperature regenerator of the second configuration in which a partition that separates the liquid pipe installation part is provided on both the left and right sides excluding the central portion at the lower part of the liquid header,
[0009]
In the high-temperature regenerator of the first or second configuration, a high-temperature regenerator of the third configuration in which a central portion in the left-right direction is extended to the planar flame burner side below the liquid header;
[0010]
In the high temperature regenerator having any one of the first to third configurations, the inlet of the absorbing liquid is opened on both the left and right sides of the upper portion of the outer wall where the liquid header is erected and located on the exhaust port side. A high-temperature regenerator with the configuration of
Is to provide.
[0011]
DETAILED DESCRIPTION OF THE INVENTION
[First Embodiment]
Hereinafter, a first embodiment of a high-temperature regenerator 100 according to the present invention will be described with reference to FIGS. 1 and 2.
[0012]
Reference numeral 1 denotes a heating / combustion chamber formed so that the dimension in the left-right direction is larger than that in the up-down direction.
[0013]
A burner installation port 2 is opened in front of the heating / combustion chamber 1, and an exhaust port 3 is opened in the rear. The burner installation port 2 is opened at the center in the left-right direction of the heating / combustion chamber 1, and the burner installation port 2 itself is a well-known planar flame type burner 4 so that the combustion surface faces sideways. is set up.
[0014]
In addition, a large number of liquid pipes 5 are erected in the heating / combustion chamber 1 to connect the upper cavity 6 and the lower cavity 7 of the double wall to the upper cavity 6, the lower cavity 7 and the right side of the double wall. The absorbing liquid injected into the gap 8 and the left side gap 9 can be convected during heating.
[0015]
And the upper space | gap 6 is expanded upwardly in the wide range except the both ends of the left-right direction at the exhaust port 3 side, forms the liquid header 10, and the vapor | steam outlet 11 opens on the upper part of this liquid header 10. The absorbing liquid outlet 12 is opened below, and the absorbing liquid inlet 13 is opened in the upper gap 6 portions on both sides which are not the liquid header 10.
[0016]
In addition, on the left and right sides of the lower portion of the liquid header 10 excluding the central portion, partition walls 14 are provided that partition from the liquid pipe installation portion, and the heating liquid inlet 15 opens at the central portion.
[0017]
Accordingly, when the absorbing liquid is injected from the absorbing liquid inlet 13 using the pump pressure and the planar flame type burner 4 is ignited, a planar flame is formed on the surface of the planar flame type burner 4 and the generated high temperature is generated. When the combustion gas is discharged from the exhaust port 3 through the heating / combustion chamber 1, the liquid pipe 5 and the upper gap 6, the lower gap 7, the right side gap 8, and the left side gap 9 are respectively Although heated through the inner wall, when comparing the temperature distribution, the planar flame burner 4 side that burns by forming a flame on the planar flame burner 4 side and the exhaust port 3 side is high and the exhaust port 3 side is heated. Since the sheet flame type burner 4 side that is burning and forming a flame is high in the left and right direction at the center and the side wall side, the side flame side is high and the side wall side is low. Since the absorbent convects from the side wall portion side to the central portion side on the mold burner 4 side, Only absorbent degrees rises enters the liquid header 10 from the heating fluid inlet 14, it is discharged from the absorption liquid outlet port 12.
[0018]
In particular, the maximum heating action occurs in the liquid pipe 5 positioned in front of the planar flame type burner 4 that directly hits the flame or receives the radiant heat of the flame. A strong upward flow is generated by adding the pumping action of the boiled bubbles to be generated, and the low-temperature absorption liquid injected from the absorption liquid inlet 12 is accompanied mainly by the right side gap 8 and the left side in the vicinity thereof. Since the entire void 9 is settled to promote the entire convection, the corrosive absorbing liquid does not partially stay or drift even in the entire high-temperature regenerator 100, and the wall surface corrosion is suppressed.
[0019]
Further, in the liquid header 10, the refrigerant liquid evaporated and separated from the absorbing liquid boiling in the liquid pipe 5 and introduced together with the absorbent liquid evaporates and separates the refrigerant to increase the absorbent concentration. And discharged from the absorbent outlet 12. Then, the refrigerant vapor that has been pumped is discharged from the vapor outlet 11. In addition, since the liquid header 10 is formed widely, there exists an effect which stabilizes a liquid level.
[0020]
By the way, the liquid pipe 5 is divided into a first liquid pipe group 5A that is densely erected on the burner installation port 2 side and a second liquid pipe group 5B that is roughly erected on the exhaust port 3 side. A combustion promoting space 16 is provided between the first liquid pipe group 5A and the second liquid pipe group 5B so that the liquid pipe 5 is not erected.
[0021]
For this reason, the flame and combustion gas generated by the planar flame type burner 4 quickly dissipate heat to the absorbing liquid in the first liquid tube group 5A and the temperature drops, so that the amount of NOx generated that is said to increase during high-temperature combustion After that, in the combustion promoting space 16, the temperature is further suppressed in the combustion promoting space 16 to suppress combustion and suppress the generation of CO, which is said to increase during low temperature combustion, and then radiate heat to the second liquid pipe group 5 </ b> B. Exhausted.
[0022]
Since the high temperature regenerator 100 having the above configuration is low except for the liquid header 10, for example, as shown in FIG. 3, the upper body 400 containing the low temperature regenerator 200 and the condenser 300, and the evaporator 500. In addition, the portion excluding the liquid header 10 can be submerged under the lower body 700 that houses the absorber 600, and the required floor area is reduced, so that the degree of freedom in selecting the installation location is increased.
[0023]
In addition, since the liquid header 10 is formed high and the absorbing liquid outlet 12 is opened on the upper side thereof, the head difference (height difference) from the low temperature regenerator 200 is reduced, and thus the high temperature regenerator 100 is cooled to a low temperature. The absorption liquid flow to the regenerator 200 is promoted.
[0024]
[Second Embodiment]
Hereinafter, a second embodiment of the high-temperature regenerator 100 according to the present invention will be described with reference to FIGS. 4 and 5. In the second embodiment, the same reference numerals are given to the portions having the same functions as those in the first embodiment, and the description thereof is omitted in a range that does not hinder the understanding of the present invention.
[0025]
In the high-temperature regenerator 100, a second liquid header 17 extends from the central portion in the left-right direction below the liquid header 10 to the burner installation port 2 side.
[0026]
By providing the second liquid header 17, the absorbing liquid which is positioned in front of the planar flame type burner 4 and directly hits the flame or is heated by the liquid pipe 5 receiving the radiant heat of the flame is boiled upward. As the temperature rises more and more toward the wide space, the circulation of the absorption liquid is promoted throughout the entire device, so that the corrosive absorption liquid is less likely to partially stay or drift, and the wall surface Corrosion is further suppressed.
[0027]
Therefore, also in the high temperature regenerator 100 having this configuration, as shown in FIG. 3, the upper cylinder 400 containing the low temperature regenerator 200 and the condenser 300, and the lower cylinder 700 containing the evaporator 500 and the absorber 600. A portion other than the liquid header 10 can be submerged in the lower portion, and further, the prevention of wall corrosion, the supply of the absorbing liquid to the low temperature regenerator 200, etc. are equivalent to or higher than the high temperature regenerator 100 of the first embodiment. There is performance.
[0028]
In addition, since this invention is not limited to the said embodiment, various deformation | transformation implementation is possible in the range which does not deviate from the meaning as described in a claim.
[0029]
For example, even if the upper inner surface of the second liquid header 17 is inclined upward from the burner installation port 2 side to the liquid header 10 side, the second liquid header 17 So that there is no cavity by the refrigerant vapor in the upper part.
[0030]
【The invention's effect】
As described above, according to the high-temperature regenerator of the present invention, even if the height other than the liquid header is suppressed, strong convection of the absorbing liquid occurs and it cannot be said that it is locally retained. Therefore, it is possible to sink most of the upper body containing the low temperature regenerator and the condenser and the lower body containing the evaporator and the absorber, and the required floor area of the absorption refrigerator is reduced. The feature is that the degree of freedom in selecting the installation location is increased.
[Brief description of the drawings]
FIG. 1 is an explanatory diagram of a first embodiment viewed from the front.
FIG. 2 is an explanatory diagram of the first embodiment viewed from the side.
FIG. 3 is an explanatory diagram of an absorption refrigerator constructed using the high-temperature regenerator according to the first embodiment, where (A) is a view from the front, (B) is a view from above, and (C) is a view from above. It is the figure seen from the side.
FIG. 4 is an explanatory diagram of the first embodiment viewed from the front.
FIG. 5 is an explanatory diagram of the first embodiment viewed from the side.
FIG. 6 is an explanatory view of an absorption refrigerator constructed using a conventional high-temperature regenerator, where (A) is a view from the front, (B) is a view from above, and (C) is a side view. FIG.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Heating / combustion chamber 2 Burner installation port 3 Exhaust port 4 Sheet flame type burner 5 Liquid pipe 5A 1st liquid pipe group 5B 2nd liquid pipe group 6 Upper space | gap 7 Lower space | gap 8 Right side space | gap 9 Left side space | gap 10 Liquid header 11 Steam outlet 12 Absorbing liquid outlet 13 Absorbing liquid inlet 14 Partition 15 Heating liquid inlet 16 Combustion promoting space 17 Second liquid header 100 High temperature regenerator 200 Low temperature regenerator 300 Condenser 400 Upper body 500 Evaporator 600 Absorber 700 Lower body

Claims (4)

A combustion / heating chamber that is surrounded by a double-walled furnace wall at least in the upper and lower sides and the left and right sides, and the upper and lower voids of the double wall that communicate with the combustion / heating chamber. It has a plurality of liquid pipes, a planar flame type burner that is installed sideways facing the liquid pipe in front of the combustion / heating chamber, and an exhaust port that is opened behind the combustion / heating chamber. In the high-temperature regenerator of the absorption refrigerator that heats and concentrates the absorption liquid injected into the vessel with the flame generated by this planar flame type burner and the combustion gas flowing toward the exhaust port,
The combustion / heating chamber is formed larger in the horizontal direction than in the vertical direction, and a planar flame burner is installed at the center in the horizontal direction, and the rear upper part of the outer wall constituting the double wall is set in the horizontal direction. The high temperature regeneration is characterized in that a liquid header is formed by starting up widely, an absorption liquid outlet is opened above the liquid header, and a refrigerant vapor outlet is opened above the absorption liquid outlet. vessel. 2. The high-temperature regenerator according to claim 1, wherein partition walls separating the liquid pipe installation part are provided on both the left and right sides of the lower part of the liquid header except the central part. The high-temperature regenerator according to claim 1 or 2, wherein a central portion in the left-right direction at the lower part of the liquid header is extended to the planar flame burner side. The high-temperature regenerator according to any one of claims 1 to 3, wherein an inlet for absorbing liquid is formed on both the left and right sides of the upper part of the outer wall where the liquid header is erected and located on the exhaust port side.

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