KR0114909Y1 - Heat exchanger of absorption type airconditioner - Google Patents

Abstract

The present invention relates to an absorption type heating and cooling system for outputting cooling and heating using a lithium bromide solution, and in particular, an absorber 40 for generating a rare solution and a rare solution produced in the absorber 40 as a refrigerant. Generator 10 for separating the steam and the concentrated solution, a condenser 20 for condensing the refrigerant vapor separated from the generator 10 into the refrigerant liquid, and an evaporator for evaporating the refrigerant liquid condensed in the condenser 20 ( 30. A solution heat exchange device of an absorption type heating and cooling system, comprising: a plurality of heat transfer means (60) having a heat evaporation portion (61) and a condensation portion (62) so that a high temperature agricultural solution and a low temperature rare solution are mutually transferred; Sealing means (70) for accommodating the heat transfer means (60) and forming a space for heat exchange between the concentrated solution and the rare solution by the heat transfer means (60), and the interior of the sealing means 70 in the agricultural solution space ( 71) and dance It consists of the partition means 80 partitioned by the liquid space part 72 relates to the solution heat exchanger of the absorption type heating and cooling system that can further improve the cooling and heating efficiency and can be miniaturized the system.

Description

Solution Heat Exchanger of Absorption Heating System

1 is a configuration diagram schematically showing a system of an absorption type air conditioner applied to a conventional example.

2 is a schematic view showing an absorption type heating and cooling system applied to the present invention.

Figure 3 is a perspective view schematically showing a solution heat exchange apparatus applied to the present invention.

Figure 4 is a cross-sectional view showing the heat transfer means not applied to the present invention.

* Explanation of symbols on the main parts of the drawings

10: generator 20: condenser

30 evaporator 40 absorber

60: heat transfer means 61: heating evaporation unit

62: condensation unit 63: container

64: working fluid 65: weak floor

70: sealing means 71: agricultural liquid space

72: solution space part 73: agricultural liquid inlet

74: agricultural liquid outlet 75: diluent liquid inlet

76: diluent outlet 80: compartment means

100: solution heat exchanger

The present invention relates to an absorption type heating and cooling system that outputs cooling and heating using a lithium bromide solution. Especially, the heating and heating efficiency separated from the generator and the rare solution produced in the absorber are easily exchanged to further improve the cooling and heating efficiency. The present invention relates to a solution heat exchanger of an absorption type cooling and heating system capable of manufacturing a compact solution heat exchanger.

Generally, in the absorption air-conditioning system that outputs cooling and heating by using lithium bromide solution, a solution heat exchanger that heat-exchanges the concentrated solution separated from the generator and the rare solution produced in the absorber has been proposed in various forms. have.

As an example of such a solution heat exchanger of a conventional absorption type heating and cooling system, the Japanese Utility Model Application, filed on July 16, 1982 and filed on March 16, 1983, in Mitsui Yotikikabushiki Kaisha, Japan Absorption cold and hot water machine of Publication No. 63-10451 has been proposed.

That is, the absorption type cold and hot water machine according to Japanese Utility Model Application Publication No. 63-10451 uses the evaporator 6 and the high temperature and low temperature heat exchanger 9 in the absorption type cold and hot water machine using a lithium bromide absorbent as shown in FIG. The heat transfer material of 8) is characterized by consisting of copper or copper alloy with a phosphorus content of about 0.01 0.004%.

The conventional absorption type cold and hot water heater has the effect of improving the corrosion resistance by using copper or copper alloy containing phosphorus as the heat transfer material of the high temperature and low temperature heat exchanger (9) and (8). There was a problem that the heat transfer function of transferring from one location to another cannot be easily and effectively performed.

That is, in the conventional absorption type cold and hot water heater, the high temperature concentrated solution separated from the generator 1 and the low temperature rare solution generated from the absorber 7 cannot be easily and effectively exchanged in the heat exchanger 9, thereby further improving the cooling and heating efficiency. There was a problem that you can not.

The present invention has been made in view of the above-mentioned problems, and an object of the present invention is to improve heat and heating efficiency by allowing heat transfer of a high temperature solution separated from a generator and a low temperature rare solution generated from an absorber to be easily conducted. The present invention provides a solution heat exchanger for an absorption cooling and heating system.

Still another object of the present invention is to provide a solution heat exchanger of a compact absorption type heating and cooling system by reducing the size and simplifying the structure of the solution heat exchanger.

In order to achieve the above object, the solution heat exchanger of the absorption type heating and cooling system according to the present invention includes an absorber for generating a rare solution, a generator for separating the rare solution generated from the absorber into a refrigerant vapor and a concentrated solution, and in the generator In the solution heat exchanger of the absorption type cooling and heating system consisting of a condenser for condensing the separated refrigerant steam into a refrigerant liquid, and an evaporator for evaporating the refrigerant liquid condensed in the condenser, the high temperature agricultural solution and the low temperature rare solution are heated to mutually transfer heat. A plurality of heat transfer means having an evaporation part and a condensation part, a sealing means accommodating the heat transfer means, and forming a space to exchange heat between the concentrated solution and the rare solution by the heat transfer means, and the inside of the sealed means with the agricultural liquid space part; Characterized in that it comprises a partition means for partitioning the rare solution space.

According to the solution heat exchanger of the absorption type heating and cooling system according to the present invention, the high temperature agricultural solution separated from the generator and the rare solution generated in the absorber can be easily and smoothly heat exchanged to further improve the cooling and heating efficiency as well as the solution. The heat exchanger can be made compact.

Hereinafter, with reference to the accompanying drawings an embodiment of a solution heat exchange device of the absorption type heating and cooling system according to the present invention will be described in detail.

2 is a schematic view showing an absorption type cooling and heating system applied to the present invention, and FIG. 3 is a perspective view schematically showing a solution heat exchange apparatus applied to the present invention, and FIG. 4 is a heat transfer means applied to the present invention. It is sectional drawing cut out and shown.

In FIGS. 2 to 4, reference numeral 10 denotes a generator, in which the rare solution supplied from the absorber described later is separated into a concentrated solution and a refrigerant vapor by a heat source of a burner means (not shown).

In addition, 20 is a condenser for condensing the refrigerant vapor separated in the generator 10, 30 is an evaporator for evaporating the refrigerant liquid condensed in the condenser 20, 40 is the evaporator 30 It is an absorber to generate a rare solution by allowing the refrigerant vapor supplied from the) to be absorbed into the concentrated solution separated in the generator (10).

In addition, between the generator 10 and the condenser 20, the first pipe member 12 for guiding the flow of the refrigerant vapor so that the refrigerant vapor separated from the generator 10 is supplied to the condenser 20 The second piping member 23 disposed to guide the flow of the coolant liquid so that the coolant liquid condensed in the condenser 20 is evaporated in the evaporator 30 between the condenser 20 and the evaporator 30. ) Is excreted.

In addition, the generator 10 is a pipe 5 for guiding the flow of the concentrated solution so that the concentrated solution separated from the generator 10 is supplied to the solution heat exchanger described later, and the heat exchange in the solution heat exchanger described later The seventh piping member 7 for guiding the flow of the rare solution is connected so that the diluted solution is supplied to the generator 10.

In addition, the absorber 40 has an eighth pipe member 8 for guiding the flow of the rare solution so that the rare solution generated in the absorber 40 is supplied to the solution heat exchanger described later, and the heat exchanger in the solution heat exchanger described later. The sixth piping member 6 for guiding the flow of the concentrated solution is connected so that the concentrated solution is supplied to the absorber 40.

On the other hand, in the figure (100) is a solution heat exchanger for heat-exchanging the high-temperature concentrated solution guided to the fifth pipe member 5 and the low-temperature rare solution guided to the eighth pipe member (8). .

That is, the solution heat exchange apparatus 100 includes a plurality of heat transfer means 60 having a heat evaporation portion 61 and a condensation portion 62 so that hot agricultural solution and a low temperature rare solution are mutually heat-transferd, and the heat transfer means ( 60 and a sealing means 70 for forming a space for heat exchange between the concentrated solution and the rare solution by the heat transfer means 60, and the interior of the sealed means 70 with the concentrated solution space 71 and the rare solution. It consists of the partition means 80 which divides into the space part 72. As shown in FIG.

In addition, the heat transfer means 60 is made of a material such as copper, nickel, stainless steel, and the phase change so that the heat is transferred to the interior of the container 63, the interior of the container 63 is empty, water, liquid Hot working solution composed of a working fluid 64 made of a condensing fluid such as nitrogen, and a weak layer 65 made of a porous material disposed on the inner wall of the container 63 so that the working fluid 64 is capillary-actiond. Heat transfer the low temperature and rare solution.

That is, the hot concentrated solution separated from the generator 10 flows to the heat evaporation unit 61 of the heat transfer means 60 to evaporate the working fluid 64 condensed on the wick layer 65. The vaporized working fluid 64 is moved to the condensation part 62 by being moved to the center of the container 63 as shown in FIG.

In addition, the condensation part 62 flows the low-temperature rare solution produced by the absorber 40 to condense the evaporated working fluid 64 into a liquid, and converts the working fluid 64 into the liquid. ) Is absorbed into the wick layer 65 and flows to the heating evaporator 61 as shown in FIG. 4 by capillary action.

On the other hand, the agricultural liquid inlet 73 and the rare liquid outlet 76 is formed on one surface of the sealing means 70, the agricultural liquid outlet 74 and the rare liquid inlet 75 on the other surface of the sealing means 70 Is formed.

In addition, an end portion of the fifth piping member 5 is connected to the agricultural liquid inlet 72 formed in the sealing means 70 so that a high temperature agricultural liquid is supplied to the agricultural liquid space 71. The solution outlet 74 is connected to an end portion of a sixth pipe member 6 for guiding the flow of the concentrated solution so that the concentrated solution converted to the low temperature in the concentrated solution space 71 is supplied to the absorber 40. .

In addition, the rare water inlet 75 formed in the sealing means 70 of the eighth pipe member (8) for guiding the flow of the rare solution so that the low temperature rare solution is supplied to the rare solution space portion (72) An end is connected, and the seventh piping member for guiding the flow of the rare solution so that the rare solution converted to high temperature in the rare solution space portion 72 is supplied to the generator (10) ( The end of 7) is connected.

Next, the effect of the solution heat exchanger of the absorption type heating and cooling system according to the present invention configured as described above will be described.

When the system is activated, the rare solution supplied to the generator 10 is heated by a heat source of burner means (not shown) to separate the refrigerant vapor and the concentrated solution.

In addition, the concentrated solution separated from the generator 10 is guided to the fifth piping member 5 and supplied to the solution heat exchange device 100, the refrigerant vapor separated from the generator 10 is the first pipe Guided to the member 12 is supplied to the condenser 20.

In addition, the refrigerant vapor supplied to the condenser 20 is condensed in the condenser 20 is converted into a refrigerant liquid, the refrigerant liquid converted in the condenser 20 is guided to the second piping member 23 It is fed to the evaporator 30.

In addition, the refrigerant liquid supplied to the evaporator 30 is evaporated to be converted into refrigerant vapor, and the converted refrigerant vapor is guided to the third pipe member 34 and supplied to the absorber 40.

In addition, the refrigerant vapor supplied to the absorber 40 is guided to the sixth piping member 6 is absorbed by the supplied concentrated solution is converted into a rare solution.

At this time, since the concentrated solution supplied to the absorber 40 is a low temperature concentrated solution having a relatively low temperature, the refrigerant vapor is smoothly and easily absorbed, thereby improving the absorption efficiency.

That is, the agricultural solution space portion 71 of the sealing means 70 of the solution heat exchange apparatus 100 is guided to the fifth piping member 5 and supplied with the hot agricultural solution separated from the generator 10. This concentrated solution flows down to the heat evaporation part 61 of the heat transfer means 60 to heat the heat evaporation part 61.

At this time, the high temperature agricultural liquid flowing down the heating evaporation unit 61 is converted to a relatively low temperature agricultural liquid by depriving heat, the working fluid 64 present in the container 63 of the heat transfer means 60 is concentrated By the heat of the solution is evaporated and moved to the center of the vessel 63 as shown in FIG. 4 to flow in the condensation section 62.

On the other hand, the rare solution generated in the absorber 40 is guided to the eighth pipe member 8 is supplied to the rare solution space portion 72 of the sealing means 70 of the solution heat exchange device (100).

In addition, the rare solution supplied to the rare solution space portion 72 flows to the condensation portion 62 of the heat transfer means 60 to extract heat from the working fluid 64 of the heat transfer means 60 to obtain high temperature Converted into a solution, the working fluid 64 is deprived of heat to the rare solution, converted into a liquid, and absorbed into the weak layer 65 as shown in FIG. 4, and absorbed into the weak layer 65. The working fluid 64 is caused to flow to the heating evaporator 61 by capillary action.

That is, the high temperature agricultural solution guided to the fifth piping member 5 and supplied to the agricultural solution space portion 71 of the sealing means 70 is converted into a relatively low temperature agricultural solution by the heat transfer means 60. And guided to the sixth pipe member 6 and supplied to the absorber 40.

At this time, the concentrate supplied to the absorber 40 is low temperature, so that the refrigerant vapor evaporated from the evaporator 30 is smoothly absorbed to improve the absorption efficiency.

Meanwhile, the low temperature rare solution guided to the eighth pipe member 8 and supplied to the rare solution space portion 72 of the sealing means 70 is converted into a relatively high temperature rare solution by the heat transfer means 60. And is guided to the seventh piping member 7 and supplied to the generator 10.

For this reason, the generator 10 is to be separated from the concentrated solution and the refrigerant vapor smoothly and easily.

That is, the concentrated solution separated from the generator 10 by the solution heat exchanger 100 and the rare solution generated by the absorber 40 are easily and smoothly exchanged with each other, so that the refrigerant vapor is absorbed into the concentrated solution. And a rare solution that has become relatively hot by heat exchange with a high concentration solution is separated into a refrigerant vapor and a concentrate with a relatively small amount of heating by an unillustrated heating source, that is, heating input amount is reduced, thereby improving the heating and cooling efficiency of the entire system. It can be.

On the other hand, the solution heat exchange apparatus 100 is made of a simple structure in which a plurality of heat transfer means 60 is disposed in the sealing means 70, so that the production is simple, down the manufacturing cost and improve the productivity, of course, It can be produced compactly.

As described above, by the solution heat exchanger of the absorption type heating and cooling system according to the present invention, the high temperature agricultural solution and the low temperature rare solution are easily and easily exchanged with each other to improve the cooling and heating efficiency, as well as the manufacturing cost during manufacturing. There is a very practical effect, such as can be down and compact production.

Claims (2)

It is installed between the absorber and the generator so that the rare solution and the agricultural solution are introduced respectively, and the partition means are installed so as to separately receive the rare solution and the agricultural solution. Heat evaporation unit and condensation unit is installed in the heat exchanger solution heat absorption system, characterized in that consisting of heat transfer means installed to exchange heat with each other while the concentrated solution and the rare solution is in contact with each other. The container according to claim 1, wherein the heat transfer means is formed in a cylindrical shape, a working fluid which is a condensing fluid which is phase-changed so that heat is transferred inside the container, and a certain thickness is coated on the inner surface of the container so that the working fluid is capillary action. Solution heat exchange device of the absorption type heating and cooling system, characterized in that consisting of a weak layer of porous material installed to move to.