JPH0339875A - Longitudinal high temperature regenerator device for gas absorption cold/hot water machine - Google Patents

Abstract

PURPOSE:To reduce a heat transfer area and make a title device compact by providing a cylindrical inner heat exchange chamber coaxially to a longitudinal cylindrical fluid chamber, providing a cylindrical surface combustion burner in an inner heat exchange chamber, and further providing an inner heat exchange chamber and a cylindrical outer heat exchange chamber communicating with the former under the same outside the cylindrical fluid chamber. CONSTITUTION:Once combustion is started in a cylindrical surface combustion burner 3 in an inner heat exchange chamber 2, short flame is formed over the entire area of the surface of the burner to heat the heat exchange fluid chamber wall or an inner fluid chamber wall 7 for heating the fluid therein. Such heating is done by convection due to combustion gas and by radiation heating from the surface burner 3. The combustion gas lowers in the inner heat exchange chamber 2 performing heat exchange and enters an outer heat exchange chamber 4 from the lower portion of the former and further heats the fluid in the fluid chamber 1 rising the outer heat exchange chamber 4. Thereafter, it is exhausted from an upper exhaust part 6 of the outer heat exchange chamber 4. Since a fin 5 is mounted on an outer fluid chamber wall 8, effective heat transfer is achieved as the combustion gas goes upward.

Description

[Detailed description of the invention] It is related to

(Prior art and problems) As shown in Figure 1, conventional high-temperature regenerators for gas absorption chiller/heaters typically use furnace-tube-type devices that have separate furnace tubes and smoke tubes. . This device exchanges heat by flowing combustion gas from a plasto burner through a smoke tube inside a dilute lithium bromide solution reservoir, boils the lithium bromide solution, and generates a concentrated solution and refrigerant vapor. Since such conventional devices are horizontally long, they require a large installation space and occupy a large volume. In addition, they hold a large amount of solution and have slow load response. In addition, since it is a horizontally long type, a plasto burner with a long flame length must be used, and such a burner has the drawback of high noise level, requiring periodic inspection, and high cost. Furthermore, since the furnace cylinder section and the smoke tube section, that is, the combustion chamber and the heat exchange section, are constructed separately, it has been difficult to improve the compactness based on this. The present invention was developed through repeated trial and error, and after learning that there were difficulties in improving conventional devices, the present invention was developed by thinking from a completely different angle.

(Structure of the Invention) and - In Figures 2-1 and 3, numeral 1 is a vertical cylindrical solution chamber, and 2 is an inner heat exchange chamber provided coaxially within the solution chamber 1. be. A cylindrical surface combustion burner 3 is installed within this inner heat exchange chamber 2. Further, the inner heat exchange chamber 2 is provided outside the cylindrical solution chamber 1, and the cylindrical outer heat exchange chamber 4 is provided in communication with the inner heat exchange chamber 2 at its lower part.

The device described in item 2 has a configuration in which fins 5 are attached to the outer solution chamber wall 8 in the cylindrical solution chamber 1 described in item 1.

(Function) When combustion starts in the cylindrical surface combustion burner 3 in the inner heat exchange chamber 2, a short flame is formed over the entire surface of the burner and heats the heat exchange chamber wall, that is, the inner IJ solution chamber wall 7. Heat the solution in it. Such heating is performed by convection heating by combustion gas and radiation heating from the surface burner 3. The combustion gas descends through the inner heat exchange chamber 2 while exchanging heat, enters the outer heat exchange chamber 4 from the lower part, and then heats the liquid in the solution chamber 1 while rising, and flows into the outer heat exchange chamber 4. , is discharged from the exhaust section 6 on the side. Since fins 5 are attached to the force 5 and the outer solution chamber wall 8, effective heat transfer can be carried out when the combustion gas rises. Said 1
．． The cylindrical surface combustion burner 3 may be any type of burner such as a sintered metal burner, a ceramic fiber burner, a metal burner, a fiber burner, or a schbank burner. With this configuration, the installation area is reduced compared to conventional equipment.
We were able to create a structure that is 60% to 70% larger and 40% to 50% larger in volume.

(Effects of the Invention) As described above, the present invention heats the inner heat exchange chamber from the inside by convection heating and radiation heating, and at the same time heats the outer heat exchange chamber from the outside by convection heating. Therefore, the heat transfer effect is excellent, and by reducing the heat transfer area, a large amount of compactness can be achieved. Furthermore, uniform heating can be achieved by such a heat exchange method, and since a surface combustion burner can be used, various effects such as noise reduction can be achieved.

[Brief explanation of drawings]

Figure 1 (A), <8) is an explanatory diagram of the conventional device;
The figure is an explanatory perspective view of the apparatus of the present invention, and FIG. 3 is an explanatory longitudinal sectional view thereof. Code 1...Vertical pear-shaped solution chamber, 2...Inner heat exchange chamber, 3...Surface combustion burner, 4...Outer heat exchange chamber, 5
6... Exhaust part, 7... Inner solution chamber wall, 8
...Outer solution chamber wall, 9...Solution etc. enter. Applicant: Tokyo Gas Co., Ltd. Representative: Akira Sanse

Claims (2)

[Claims] (1) A cylindrical inner heat exchange chamber is provided coaxially within the vertical cylindrical solution chamber, a cylindrical surface combustion burner is provided in the inner heat exchange chamber, and the inner side is provided on the outside of the cylindrical solution chamber. A vertical high-temperature regenerator for a gas absorption chiller/heater, which is equipped with a heat exchange chamber and a cylindrical outer heat exchange chamber that communicates with the lower part of the heat exchange chamber. (2) A vertical high-temperature regenerator for a gas absorption water cooler/heater, in which the cylindrical solution chamber described in item 1 has fins attached to the outer solution chamber wall constituting the cylindrical solution chamber.