KR0136205Y1 - Absorptive type airconditioner - Google Patents

Abstract

The present invention relates to an absorption type air conditioner having a cooling / heating function as well as a cold / hot water supply function using a lithium bromide aqueous solution, and the like, at least in a generator of a heating type, a condenser, an evaporator, a solution heat exchanger, and an absorber, which are heated by combustion heat, The heat of condensation generated by the condensation of the refrigerant and the heat of absorption generated by the absorption of the refrigerant in the absorber 29 is cooled in one heat exchanger 22 so that the solution in the condenser and the absorber of the condensation of the refrigerant in the condenser is cooled. The whole plant can be miniaturized by cooling the cooling water cooled by the absorption heat generated when absorbing the refrigerant in one heat exchanger. Especially, since the cooling water is repeatedly circulated, it is not necessary to replenish the cooling water. Cooling efficiency is improved.

Description

Absorption air conditioner

1 is a schematic view showing an example of a conventional absorption type air conditioner.

2 is a schematic view showing another example of a conventional absorption type air conditioner.

3 is a schematic view showing the overall configuration of the absorption type air conditioner to which the present invention is applied.

* Explanation of symbols for main parts of the drawings

22: heat exchanger 22a: condenser

22b: intercooler 29: absorber

33: cooling water pipe 34: cooling fan

The present invention relates to an absorption type air conditioner using lithium bromide aqueous solution and the like as well as cooling and heating as well as a cooling and hot water supply function. In particular, the present invention relates to an absorption type air conditioner configured to cool condensation heat and absorption heat generated in a condenser and an absorber in one heat exchanger. .

As shown in FIG. 1, the conventional absorption type air conditioner generates a refrigerant vapor and a concentrated solution in a rare solution in which the refrigerant is absorbed when the generator 1 burns a gas or the like in the burner 1a and heats it. The refrigerant vapor generated in 1) is separated, condensed into liquefied refrigerant in the condenser (2), decompressed to a predetermined pressure in the expansion valve (3) and sent to the evaporator (4), the liquefaction introduced into the evaporator (4) The coolant performs cooling while evaporating, thereby cooling the indoor unit 5, and the coolant evaporated in the evaporator 4 is introduced into the absorber 6.

On the other hand, the hot concentrated solution which discharged the refrigerant vapor from the generator (1) is heat-exchanged with the rare solution in the solution heat exchanger (7) is lowered in temperature and supplied into the absorber (6), into the absorber (6) The concentrated agricultural solution absorbs the refrigerant evaporated in the evaporator 4 to form a rare solution. In this case, a large amount of heat of absorption is generated, and the heat of absorption is the cooling water flowing through the cooling water pipe 8 installed in the absorber 6. The cooling water in the cooling water pipe 8 which is cooled by the heat exchanger in the absorber 6 and heated by absorption heat is configured to be cooled by another cooling water in a separate cooling tower 9.

However, in this type of absorption air conditioner, as the heat generated by the condenser 2 and the absorber is cooled by water, it requires a separate cooling tower or the like, which not only increases the size of the entire facility but also complicates the piping. In particular, problems such as the need to replenish the cooling water periodically are inherent.

Conventionally, in view of this, an absorption type air conditioner for cooling by air has been proposed. As shown in FIG. 2, cooling fins 10a and 10b are provided on one side of the condenser 2 and the absorber 6, respectively. And condensation heat and absorption heat generated in the condenser 2 and the absorber 6 are cooled by air generated by the operation of the cooling fans 10a and 10b.

However, the conventional absorption type air conditioner can reduce the size of the entire installation to some extent, but the heat transfer rate of the air is smaller than that of water, so that the heat transfer area of the condenser and the absorber must be large to obtain the same cooling effect as the water cooling type. In addition to the difficulty of miniaturizing the size of the system, there were various problems of ㅇ that the satisfactory cooling effect could not be obtained.

The present invention has been made to solve the problems of the prior art as described above, the object of the present invention is to cool down the condensation heat and absorption heat generated in the condenser and absorber in one heat exchanger and to make the whole size of the installation and At the same time to provide an absorption air-conditioner that can significantly improve the cooling efficiency.

Absorption air conditioner according to the present invention made to achieve this purpose is an absorption air-conditioner equipped with a generator, a condenser, an evaporator, a solution heat exchanger and an absorber for heating by at least combustion heat, the heat of condensation and absorption generated by the condensation of the refrigerant The heat of absorption generated by the absorption of refrigerant in the aircraft is cooled in one heat exchanger, so that the heat of condensation due to the condensation of the refrigerant in the condenser and the cooling water that cools the absorption of heat generated when the solution absorbs the refrigerant in the absorber. By cooling in the heat exchanger of the entire facility can be miniaturized, in particular, because the cooling water is repeatedly circulated, it is not necessary to replenish the cooling water, it is characterized by not only easy management but also improved cooling efficiency.

Hereinafter, preferred embodiments of the present invention will be described in more detail with reference to FIG. 3.

In the figure, reference numeral 20 denotes a generator for generating refrigerant vapor and a concentrated solution in a solution heated by the heat of combustion of the burner 20a.

One side of the generator 20 is provided with a heat exchanger 22 for condensing the refrigerant vapor introduced through the refrigerant steam engine 21, the liquefied refrigerant condensed in the heat exchanger 22 is expanded in the expansion valve (23) It is configured to evaporate in the evaporator 24 after sufficiently depressurizing.

In addition, the refrigerant not evaporated in the evaporator 24 is circulated according to the operation of the refrigerant circulation pump 25, and evaporation is performed. The evaporator 24 is cooled according to the evaporation of the refrigerant, and the indoor unit 26 is cooled. ) Is provided with a cold water pipe 27 for cooling.

Meanwhile, an absorber 29 is formed at one side of the evaporator 24 through which the evaporated refrigerant flows through the separator 28, and the concentrated solution generated from the generator 20 is a solution in the absorber 29. After exchanged with the rare solution in the heat exchanger (30), it is circulated according to the operation of the agricultural liquid circulation pump (31), and the heat of absorption generated by absorbing the refrigerant in the absorber (29) is a cooling water circulation pump ( It is cooled by the cooling water in the cooling water pipe 33 circulated in accordance with the operation of 32).

In addition, the cooling water heated by the absorption heat generated in the absorber 29 is cooled in the heat exchanger 22.

The heat exchanger 22 is composed of a condenser 22a for condensing the refrigerant vapor generated in the generator 20, and an intercooler 22b for cooling the cooling water heated by absorption heat in the absorber 29, On one side, a cooling fan 34 for cooling the cooling water heated by the heat of absorption in the absorber 29 and the condensation heat generated by the condenser 22a is configured to rotate by a driving means such as a motor.

On the other hand, the generator 20 and the absorber 29 is connected to the agricultural liquid pipe 35 so that the concentrated solution generated in the generator 20 is heat-exchanged in the solution heat exchanger 30 and then introduced into the absorber 29. At the same time, the rare liquid pipes 37 for supplying the rare solution in the absorber 29 to the generator 20 after heat exchange in the solution heat exchanger 30 in accordance with the operation of the rare solution supply pump 36 are connected. .

Next will be described the action and effect on the absorption type air conditioner according to the present invention configured as described above.

First, when the solution in the generator 20 is heated by the combustion heat applied by the burner 20a, a high temperature refrigerant vapor and a concentrated solution are generated, and the refrigerant vapor generated in the generator 20 is passed through the refrigerant vapor engine 21. After condensation in the condenser 22a of the heat exchanger 22, a sufficient pressure reduction is performed in the expansion valve 23 and sent to the evaporator 24.

In addition, when the refrigerant sent into the evaporator 24 is circulated according to the operation of the refrigerant circulation pump 25 and evaporation is performed, cooling is performed in the indoor unit 26 while the cold water in the cold water pipe 27 cools.

On the other hand, the hot agricultural solution generated in the generator 20 is introduced into the absorber 29 through the agricultural liquid pipe 35, wherein the agricultural liquid circulated through the agricultural liquid pipe 35 is a solution heat exchanger In 30, after the heat exchange with the rare solution is introduced into the absorber (29).

In addition, the agricultural liquid introduced into the absorber 29 is circulated in accordance with the operation of the agricultural liquid circulation pump 31 and is sprayed while being evaporated in the evaporator 24 to absorb the refrigerant introduced through the separator 28. At this time, the absorption heat generated by absorbing the refrigerant introduced from the evaporator 24 is cooled by the cooling water circulated into the cooling water pipe 33 and then the rare water pipe (operation of the rare liquid supply pump 36). It is distributed through 37) and is heat-exchanged with the concentrated solution in the solution heat exchanger 30 and then supplied into the generator 20.

On the other hand, the cooling water cooling the absorption heat generated in the absorber 29 is distributed through the cooling water pipe 33 in accordance with the operation of the cooling water circulation pump 32 and into the heat exchanger 22, that is, intercooler 22b. In the intercooler 22b, the air is cooled by the air generated by the operation of the cooling fan 34 and then supplied to the absorber 29 again.

At this time, the cooling air generated by the operation of the cooling fan 34 cools the cooling water circulated into the intercooler 22b and at the same time cools the condenser 22a in which the heat of condensation is radiated according to the condensation of the refrigerant. This is to be improved.

As described above, according to the absorption type air conditioner according to the present invention, an apparatus is provided by cooling a condenser heat resulting from condensation of a refrigerant in a condenser and a cooling water cooling the absorption heat generated when a solution absorbs the refrigerant in the absorber in one heat exchanger. Since the whole can be downsized, in particular, since the coolant is repeatedly circulated, there is no need to replenish the coolant, thereby facilitating management and improving the cooling efficiency.

Claims (1)

In an absorption type air conditioner having at least a generator, a condenser, an evaporator, a solution heat exchanger, and an absorber for heating by a combustion chamber, a condenser (22a) for receiving and condensing the refrigerant generated in the generator (20), and the inhaler (29) The intercooler 22b to which the coolant pipe 33 circulates the coolant is connected, and the cooling air is supplied to the condenser 22a and the intercooler 22b to generate coolant condensation in the condenser 22a. And a heat exchanger (22) comprising a cooling fan (34) for simultaneously cooling the condensed heat and the absorption heat generated by the absorption of the refrigerant in the absorber (29).