JPH0339871A - Longitudinal high temperature regenerator device for gas absorbing cold/hot water machine - Google Patents

Abstract

PURPOSE:To improve heat efficiency and make compact a regenerator device by providing inner line blocking plates and outer line blocking plates among inner line fluid tubes in fluid tubes and among outer line fluid tubes in the same, and an upper communication part on the tops of the inner line blocking plates and a lower communication part on the bottoms of the outer line blocking plates. CONSTITUTION:Combustion gas produced in a burner 10 moves upward in a parallel flow heat exchanger 5. The combustion gas at the top of the parallel flow heat exchanger 5 traverses an upper communication part and is separated to both sides of the same, and is lowered to exchange heat with the fluid moving upward in the fluid tube 3 upon its traversing the upper communication path 7. The combustion gas is lowered along between the inner line fluid tubes 3a and the outer line fluid tubes 3b. Further, since a fin is mounted on the fluid tube 3b in the lower communication part 8, the combustion gas moves upward while being sufficiently absorbed in its heat upon its traversing the lower communication part 8 and is discharged through an exhaust vent in an exhaust part 11. Heat exchange of the fluid moving along the fluid tube 3 with the combustion gas can be altered to a parallel flow type, a cross type, and a counter flow type as the gas temperature is lowered to result in the number of paths increased, and so heat efficiency is greatly improved.

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a vertical high temperature regenerator for a gas absorption chiller/heater.

(Conventional technology and problems) As shown in Figure 1, conventional high-temperature regeneration devices for gas absorption chiller/heaters are usually furnace-tube-type devices that have separate furnace tubes and smoke tubes. Ta. This device exchanges heat by flowing combustion gas from a plasto burner through a smoke tube in a dilute lithium bromide solution reservoir, boils the lithium bromide liquid, 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 and smoke pipe sections, that is, the combustion chamber and heat exchange section, are constructed separately, it was difficult to improve the compactness based on conventional equipment. While
Knowing that there are drawbacks to improving conventional devices, we arrived at the present invention by thinking from a completely different angle.

The reservoir chamber 2 is a lower liquid reservoir chamber. By arranging two rows of liquid pipes 3 on each side on both sides of the heat exchange chamber 4, which communicate the upper droplet chamber 1 and the lower liquid storage chamber 2, a parallel flow heat exchange section 5 is provided in the center, and the liquid An inner row shielding plate 6a and an outer row shielding plate 6b are provided between the inner row of liquid tubes 3a and between the outer row of liquid tubes 3b of the tubes 3, respectively, and the inner row of shielding plates 6a
An upper communication part 7 is provided on the upper part of the shielding plate 6 of the outer row.
b has a structure in which a lower communication part (3) is installed, and the one described in item 2 has a structure in which a fin 9 is provided in the outer row of liquid pipes 3b located in the lower communication part 8. The structure described in Section 3 has a configuration in which the liquid tubes 3 of the inner row of liquid tubes 3a and the outer row of liquid tubes 31) described in Section 1 are arranged in a staggered pattern.

(Function) Thus, the combustion gas generated at B-+10 rises through the parallel flow heat exchange section 5. At this time, since the liquid in the liquid tube 3 is moving upward due to heating, the heat exchange in the parallel flow heat exchange section 5 becomes a parallel flow type. The combustion gas is transferred to the parallel flow heat exchange section 5'-1
At this point, it crosses the upper communication section 7, splits into both sides, and then descends, but during this crossing, the liquid tube 3%j-exchanges heat with the rising liquid.

This heat exchange is of the orthogonal type since it is a heat exchange between the combustion gas flowing laterally and the liquid rising in the liquid pipe 38.

Next, the combustion gas is transferred to the inner row of liquid pipes 3a and the outer row of liquid pipes 3b.
It exchanges heat with the liquid that descends through the liquid pipe 3 and rises.

This heat exchange is of the countercurrent type because it is a heat exchange between the descending combustion gas and the rising liquid. Furthermore, since a fin is attached to the liquid pipe 3b located in the lower communication part 8,
As it crosses the lower communication part 8, it rises while sufficiently absorbing heat, passes through the exhaust part 1, and is discharged from the exhaust port 12. In this case, the heat exchange described above is further promoted by arranging the liquid pipes 3 in the inner row and the liquid pipes 3 in the outer row in a staggered manner as shown in the figure.7 In this way, the liquid pipes 3 are moved. Heat exchange between the solution and the combustion gas decreases as the temperature of the combustion gas decreases. Parallel flow type, orthogonal type, countercurrent type variations 14. As the number of buses increases, the thermal efficiency is greatly improved, and in combination with the configuration of the combustion chamber equal to the heat exchange chamber 4 in the Mini, a dramatic reduction in size can be achieved. That is, compared to the conventional device, the installation area can be reduced by 60% to -70%, and the occupied volume can be reduced by 40% to 50%.

(Effects of the Invention) As described above, the present invention has a configuration in which the combustion chamber is equal to the heat exchange chamber, and by the unique configuration of the liquid pipe and the shielding plate, the form of heat exchange is made to correspond to the temperature change of the heat flow. ,, parallel flow type,
It has an orthogonal type and a countercurrent type configuration, and has the excellent effect of improving thermal efficiency and achieving a dramatic downsizing of the regenerator.

[Brief explanation of drawings]

It is. Code 1... Upper liquid reservoir chamber, 2... Lower liquid reservoir chamber, 3...
・Liquid pipe, 3a...Liquid pipe in the inner row, 3b...Liquid pipe in the outer row, 4...Heat exchange chamber, 5...Co-current heat exchange section, 6a
...Inner row shielding plate, 6b...Outer row shielding plate, 7...Upper communication part, 8...Lower communication part, 9...
Finn, 10...Burna. 11...Exhaust part, 1-2...Exhaust port, ]3...Liquid introduction a. applicant

Claims (3)

[Claims] (1) Two rows of liquid pipes communicating between the upper liquid storage chamber and the lower liquid storage chamber are arranged on each side of the heat exchange chamber, and a parallel flow heat exchange section is provided in the center, and among the liquid pipes, the inner row An inner row shielding plate and an outer row shielding plate are provided between the liquid pipes and between the liquid pipes in the outer row, respectively, and an upper communication portion is provided above the inner row shielding plate,
A vertical high-temperature regenerator for gas absorption chiller/heater machines with a lower communication section at the bottom of the outer row shielding plate. (2) A vertical high-temperature regenerator for a gas absorption chiller/heater, in which a fin is attached to the liquid pipe located in the lower communication part as described in item 1. (3) A vertical high-temperature regenerator for a gas absorption water cooler/heater, in which the liquid pipes described in item 1 are arranged in a staggered manner, with the liquid pipes in the inner row and the liquid pipes in the outer row.