JPH10339514A - Air-cooled absorptive cold calorifier - Google Patents

Abstract

PROBLEM TO BE SOLVED: To dispense with a measure against especially, rainwater, with the simple countermeasure for keeping warm and keeping cool without obstructing the flow of the air by an air-cooling fan. SOLUTION: This calorifier possesses a high-temperature regenerator GH, a low-temperature regenerator GL, an air-cooled condenser C, an evaporator E, an air-cooled absorber A, a solution heat exchanger, a pipe for operably connecting these equipments, and an air-cooling fan F for supplying an air-cooled condenser C and an air-cooled absorber A with cooling air. In this case, the air-cooling fan F is composed as the main elements, of an impeller IM, a bell mouth B, and a motor M, and out of a topside and four side faces which constitute a contour 10 of an absorptive cold calorifier, the topside is provided with a roof 11 and the air-cooling fan F, and a part of a great part of the bell mouth of the air-cooling fan F is projected upward from the topside, and the evaporator E and the cold regenerator GL are arranged around the bell mouth B besides being inside the roof 11, and constituent apparatuses and fixtures are no arranged to the utmost inside the contour 10.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an air-cooling absorption chiller / heater, and more particularly to an air-cooling absorption chiller / heater with a simplified arrangement of an air-cooling fan to keep the low-temperature regenerator, the evaporator and the high-temperature regenerator warm and cool. It is about.

[0002]

2. Description of the Related Art FIG. 4 is a view showing the structure of a conventional air absorption refrigerator of this kind. FIG. 3A is a plan view, and FIG.
Is a side sectional view. As shown in the drawing, the air-cooling absorption chiller / heater has an air-cooling fan F and a bellmouth B disposed on the upper surface of an outer shell 100, and an air-cooling absorber A, an air-cooling condenser C, and an air-cooling absorber A on the side surface of the outer shell 100. It is arranged, and the high temperature regenerator GH, the low temperature regenerator GL, the evaporator E and the refrigerant duct 10 are disposed inside.
1 etc. are arranged.

[0003]

In the air-cooling absorption chiller / heater of the above construction, the low-temperature regenerator GL, the evaporator E and the high-temperature regenerator GH need to be kept warm and cool. Usually, a target device is covered with glass wool, and furthermore, the outer periphery is covered with plate-shaped lagging to take measures to keep the temperature and cool. However, as described above, in the structure in which the air-cooling fan F and the bell mouth B thereof are arranged so as to protrude from the upper surface of the outer shell 100, there is a problem that the structure becomes complicated if the above-mentioned measures for keeping heat and keeping cool are performed. Was. In addition, there is a problem that when water leaks into the glass wool layer due to the occurrence of rain leakage, etc., the action of keeping heat and keeping cool is not exhibited,
Special attention had to be paid to rainwater control.

Further, as described above, since the components and equipment such as the high-temperature regenerator GH, the low-temperature regenerator GL, the evaporator E and the refrigerant duct 101 are arranged inside the outer shell 100, the air cooling fan F There was also a problem that the flow of air was obstructed.

[0005] The present invention has been made in view of the above points, and without obstructing the flow of air by an air cooling fan,
It is an object of the present invention to provide an air-cooling absorption chiller / heater in which measures for keeping heat and keeping cool are simple, and in particular, measures for rainwater are not required.

[0006]

Means for Solving the Problems To solve the above problems, the invention according to claim 1 comprises at least a high-temperature regenerator, a low-temperature regenerator, an air-cooled condenser, an evaporator, an air-cooled absorber, a solution heat exchanger, In an air-cooling absorption chiller / heater equipped with a pipe for operatively connecting these devices and an air-cooling condenser and an air-cooling fan for supplying cooling air to the air-cooling absorber, the air-cooling fan mainly includes an impeller, a bell mouth, and a motor. A top plate and an air-cooling fan are provided on the upper surface of the upper and lower surfaces and four side surfaces forming the outer shell of the absorption chiller / heater, and a part or most of a bell mouth of the air-cooling fan is mounted on the upper surface. , The evaporator and the low-temperature regenerator are arranged around the bell mouth inside the top plate, and the components and equipment are not arranged as much as possible inside the outer shell.

[0007] The invention described in claim 2 is the first invention.
In the air-cooled absorption chiller / heater described in the above, air-cooled absorbers are arranged on the left and right sides of the outer shell, air-cooled condensers are arranged on the front or rear side, and cooling air is sucked in from three sides of the outer shell. I do.

[0008] The invention described in claim 3 is the first invention.
In the air-cooled absorption chiller / heater described in the above, the air-cooled absorber and the air-cooled condenser on the left and right sides or the front and rear sides of the outer shell, the outside air passage surface of the air-cooled condenser is the upper part of the outside air passage surface of the air-cooled absorber. The cooling air is sucked from two side surfaces of the outer shell, so that the cooling air is arranged so as to overlap and be on the outside.

[0009]

Embodiments of the present invention will be described below with reference to the drawings. In this embodiment, an air absorption refrigerator will be described as an example. FIG. 1 is a view showing the structure of an air absorption refrigerator configured to suck cooling air from three sides, wherein FIG. 1 (a) is a plan view, FIG. 1 (b) is a front sectional view, and FIG. FIG. In FIG. 1, portions denoted by the same reference numerals as those in FIG. 4 indicate the same or corresponding portions. The same applies to other drawings.

The air absorption refrigerator has a high-temperature regenerator GH, a low-temperature regenerator GL, an air-cooled condenser C, an evaporator E, an air-cooled absorber A, a solution heat exchanger (not shown), and these devices operatively. And an air-cooling fan F for supplying cooling air to the air-cooled condenser C and the air-cooled absorber A. The air-cooling fan F includes an impeller IM, a bellmouth B, and a motor M as main elements. A top plate 11 is provided on the upper surface of the outer shell 10 of the absorption refrigerator, and most of the bell mouth B of the air-cooling fan F protrudes into the outer shell 10 from the upper surface. The top plate 11 has a shape that covers the entire surface of the upper surface of the outer shell 10 except for the bellmouth B portion and the upper outer peripheral portion of the outer shell 10. The evaporator E and the low-temperature regenerator GL are arranged around the bell mouth B inside the top plate 11. Outer shell 10
As far as possible, components and equipment should not be placed inside the equipment. In the figure, reference numeral 12 denotes a chimney of the high-temperature regenerator GH.

An air-cooled absorber A is provided on the left and right side surfaces of the outer shell 10.
And an air-cooled condenser C is disposed on the front side. When the motor M of the air-cooling fan F is started and the impeller IM is rotated, the outside air passes through the outside air passage surface of the air-cooled absorber A and the air-cooled absorber A and the outside air passage surface of the air-cooled condenser C, and enters the inside of the outer shell 10. The air is sucked and discharged outside through the impeller IM of the air-cooling fan F. That is, the cooling air is sucked from the three side surfaces of the outer shell 10. At this time, since the components and equipment are not arranged as much as possible inside the outer shell 10 as described above, the flow of the sucked air is not hindered.

The evaporator E and the low-temperature regenerator GL are connected to the top plate 1.
Since it is arranged around Bellmouth B inside 1, it is easy to keep warm and cool. Especially because it is surrounded by the top plate 11 and Bellmouth B, it is not necessary to take special measures against rainwater. Rainwater can be prevented from penetrating, and measures for keeping warm and keeping cool can be extremely simplified. In the above example, the air-cooled condenser C is arranged on the front surface of the shell 10, but may be arranged on the rear surface.

FIG. 2 is a view showing the structure of an air absorption refrigerator configured to suck cooling air from two side surfaces. FIG. 2 (a) is a plan view, FIG. 2 (b) is a front sectional view, and FIG. c)
It is a right side view.

The present air absorption refrigerator has an outer shell 1 of the absorption refrigerator.
0, the top plate 11 is provided on the upper surface portion, and most of the bell mouth B of the air cooling fan F is projected from the upper surface into the inside of the outer shell 10,
The point that the evaporator E and the low-temperature regenerator GL are arranged around the bell mouth B inside the top plate 11 and the components and equipment are not arranged as much as possible inside the outer shell 10 as in FIG. However, the air-cooled condenser C and the air-cooled absorber A are provided on both left and right sides of the outer shell 10, and the outside air passage surface of the air-cooled condenser C is provided with the air-cooled absorber A.
Was arranged so as to overlap with the upper part of the outside air passage surface and to be outside, so that cooling air was sucked in from two side surfaces of the outer shell.

As described above, the air-cooled condenser C and the air-cooled absorber A are arranged such that the outside air passage surface of the air-cooled condenser C overlaps with and is outside the outside air passage surface of the air-cooled absorber A. 1, the heat transfer area of the air-cooled condenser C can be significantly reduced, and the air-cooled absorber A can be increased only slightly by using the temperature distribution. .

FIG. 3 is a view showing a flow sheet of the air absorption refrigerator shown in FIG. Here, the air-cooled absorber A and the air-cooled condenser C are represented as one each. HH is a high-temperature solution heat exchanger, HL is a low-temperature solution heat exchanger, 13 is an absorption solution pump, and 14 is a refrigerant liquid pump. Next, the operation of the air absorption refrigerator will be described.

The dilute solution that has absorbed the refrigerant in the air-cooled absorber A is
The heat is exchanged with the concentrated solution from the high-temperature regenerator GH and the low-temperature regenerator GL in the low-temperature solution heat exchanger HL by the pump 13 from the pipe 15, and then branched, and a part is branched from the pipe 20 to the low-temperature regenerator GL.
The remainder is heat-exchanged with the concentrated solution from the high-temperature regenerator GH in the high-temperature solution heat exchanger HH, and then introduced into the high-temperature regenerator GH through the pipe 16. The concentrated solution heated by the high-temperature regenerator GH and the refrigerant evaporated from the pipe 17 passes through the heating side of the high-temperature solution heat exchanger HH and the low-temperature solution heat exchanger HL, passes through the pipe 18, and is located above the air-cooled absorber A. Supplied.

On the other hand, the refrigerant vapor generated in the high-temperature regenerator GH is used as a heating source for the low-temperature regenerator GL from the pipe 19, and then introduced into the upper part of the air-cooled condenser C, where it is cooled by outside air and condensed. The refrigerant is supplied from the pipe 22 to the refrigerant liquid container 23. In the evaporator E, the refrigerant liquid is circulated through the pipe 25 by the refrigerant liquid pump 14 to generate cold heat. The evaporated refrigerant vapor is introduced into the air-cooled absorber A, is absorbed by the concentrated solution while being cooled by the outside air, becomes a dilute solution, and circulates as described above.

Although the above embodiment has been described as an air-cooled absorption chiller, it may be an air-cooled absorption chiller / heater.

[0020]

As described above, according to the invention described in the claims of the present application, the top plate and the air-cooling fan are provided on the upper surface of the outer shell, and a part or most of the bell mouth of the air-cooling fan is provided.
Since it protruded inward from the upper surface, the evaporator and the low-temperature regenerator were arranged around the bell mouth inside the top plate, and the components and equipment were not arranged as much as possible inside the outer shell.
The following effects can be expected.

It is possible to provide an air-cooling absorption chiller / heater in which measures for heat retention and cooling can be easily performed without obstructing the flow of air by the air-cooling fan, and in particular, measures for rainwater are not required.

[Brief description of the drawings]

FIG. 1 is a view showing the structure of an air absorption refrigerator according to the present invention, wherein FIG. 1 (a) is a plan view, FIG. 1 (b) is a front sectional view, and FIG. 1 (c) is a right side view.

FIG. 2 is a view showing the structure of an air absorption refrigerator according to the present invention, wherein FIG. 2 (a) is a plan view, FIG. 2 (b) is a front sectional view, and FIG. 2 (c) is a right side view.

FIG. 3 is a view showing a flow sheet of the air absorption refrigerator according to the present invention.

4A and 4B are diagrams showing the structure of a conventional air-cooling absorption chiller / heater, wherein FIG. 4A is a plan view and FIG. 4B is a side sectional view.

[Explanation of symbols]

 GH High-temperature regenerator GL Low-temperature regenerator A Air-cooled absorber C Air-cooled condenser E Evaporator HH High-temperature solution heat exchanger HL Low-temperature solution heat exchanger 10 Outer shell 11 Top plate 13 Absorbing solution pump 14 Refrigerant liquid pump

 ──────────────────────────────────────────────────続 き Continuation of the front page (72) Inventor Seiichiro Fujimaki 3-1 Eda Higashi, Tsuzuki-ku, Yokohama-shi, Kanagawa Prefecture (72) Inventor Noriyuki Nishiyama 656, Yamanishi, Ninomiya-cho, Naka-gun, Kanagawa Prefecture (72) Inventor Shigeru Kawasaki Sumida, Tokyo 1-47-10 Kyojima-ku Tokyo Gas Sumida Building

Claims (3)

[Claims] 1. At least a high-temperature regenerator, a low-temperature regenerator,
Air-cooled condenser, evaporator, air-cooled absorber, solution heat exchanger, air-cooling equipped with piping for operatively connecting these devices, and an air-cooled fan for supplying cooling air to the air-cooled condenser and the air-cooled absorber In the absorption chiller / heater, the air-cooling fan is configured with an impeller, a bell mouth, and a motor as main elements, and a top plate and an air-cooling fan are provided on an upper surface of upper and lower surfaces and four side surfaces forming an outer shell of the absorption chiller / heater. A part or most of the bell mouth of the air-cooling fan is protruded inward from the upper surface, and the evaporator and the low-temperature regenerator are arranged around the bell mouth inside the top plate, An air-cooling absorption chiller / heater characterized by minimizing components and equipment inside the shell. 2. The air-cooling absorption chiller / heater according to claim 1, wherein the air-cooling absorber is disposed on left and right sides of the outer shell, and the air-cooling condenser is disposed on a front or rear side of the outer shell. 3
An air-cooled absorption chiller / heater that draws in from the side. 3. The air-cooling absorption chiller / heater according to claim 1, wherein the air-cooling absorber and the air-cooling condenser are provided on left and right side surfaces or both front and rear side surfaces of the outer shell, and an outside air passage surface of the air-cooling condenser. The air-cooling absorption chiller / heater is arranged so as to overlap with the outside air passage surface of the air-cooling absorber and to be on the outside, and to suck cooling air from two side surfaces of the outer shell.