JP2022140875A - Heat exchange type ventilation device - Google Patents

Abstract

To improve cooling performance of a condenser with respect to a refrigerant and to improve dehumidification performance while suppressing increase in material cost and running cost even when water-cooling function is installed.SOLUTION: A heat exchange type ventilation device is such that: a refrigerant piping 54 includes a branch part 54a for branching the flow of the refrigerant in two directions, a first refrigerant piping 54b for passing one of the refrigerant in the flow of refrigerant branched by the branch part 54a, a second refrigerant piping 54c for passing the other of the refrigerant in the flow of the refrigerant branched by the branch part 54a, and a merging part 54d for merging the flow of the refrigerant passing through the first refrigerant piping 54b and the flow of refrigerant passing through the second refrigerant piping 54c; a condenser 53 includes a heat radiation part 53a for radiating the heat of the refrigerant into the air; and the first refrigerant piping 54b, the second refrigerant piping 54c and a humidification drain pipe 56 pass through the heat radiation part 53a.SELECTED DRAWING: Figure 3

Description

The present invention relates to a heat exchange ventilator.

In recent years, due to improvements in the airtightness and heat insulation of houses, ventilation equipment equipped with heat exchange elements for exchanging heat between the supply air flow and the exhaust flow has been introduced with the aim of reducing heat loss due to ventilation during cooling and heating. Are known. Furthermore, due to the high airtightness and high insulation of houses, it has become easier to control humidity, which is one of the parameters that indicate comfort. See Patent Document 1).

Such a humidification heat exchange device can prevent the indoor humidity from becoming low and provide a comfortable indoor space, for example, in winter when the humidity is low. However, for example, in summer when the humidity is high, it is not possible to prevent the indoor humidity from increasing, resulting in a humid environment, which may make the user feel uncomfortable. Therefore, for example, a heat exchange ventilator equipped with a dehumidification function by a compressor-type refrigeration cycle is installed in a humidification heat exchange device (for example, Patent Document 2).

A heat exchange device equipped with a dehumidifying/humidifying function will be described below with reference to FIG.

As shown in FIG. 4, the heat exchange ventilator 700 includes an air supply air path 610, an air exhaust air path 620, an outdoor side air supply port 630, an air supply duct 640, an indoor side air outlet 650, and an outdoor side An exhaust port 660 , a humidifying section 670 , a dehumidifying section 680 and a heat exchanging section 690 are provided.

The supply air passage 610 is an air passage for conveying outdoor air indoors.

The exhaust air duct 620 is an air duct for conveying indoor air to the outdoors.

The outdoor air supply port 630 is a suction port for drawing outdoor air into the heat exchange type ventilator 700 . The outdoor air supply port 630 constitutes a part of the air supply air passage 610 . The outdoor air supply port 630 is connected to a duct (not shown) to communicate with the outdoors.

Air supply duct 640 is an air passage for conveying air sucked into heat exchange type ventilator 700 from outdoor side air supply port 630 to humidification section 670 . The supply air duct 640 constitutes a part of the supply air passage 610 .

The indoor-side exhaust port 650 is an intake port for drawing indoor air into the heat exchange type ventilator 700 . The indoor-side exhaust port 650 constitutes part of the exhaust air passage 620 . The indoor air outlet 650 is connected to a duct (not shown) and communicates with an indoor living space such as a living room.

The outdoor-side exhaust port 660 is an outlet for blowing out the air sucked into the heat-exchange-type ventilator 700 from the indoor-side exhaust port 650 to the outside. Outdoor-side exhaust port 660 constitutes part of exhaust air passage 620 . The outdoor air outlet 660 is connected to a duct (not shown) to communicate with the outdoors.

Humidifier 670 humidifies the air conveyed from air supply duct 640 . The humidification unit 670 atomizes (atoms) water by centrifugal crushing, and humidifies the air by including the atomized water in the air. The humidifying section 670 includes an indoor air supply port 671 .

The indoor air supply port 671 is an outlet for blowing out the air humidified by the humidifying section 670 . The indoor air supply port 671 constitutes a part of the air supply air passage 610 . The indoor air supply port 671 is connected to a duct (not shown) and communicates with an indoor living space such as a living room.

The dehumidifying section 680 dehumidifies the air passing through the supply air passage 610 using a compressor-type refrigerating cycle.

The dehumidifying section 680 includes a refrigerant pipe, a heat exchanger and a compressor (not shown) to implement a refrigeration cycle. Refrigerant piping is a tube for conveying refrigerant from the heat exchanger to the compressor and from the compressor to the heat exchanger. The heat exchanger exchanges heat between refrigerant and air. The compressor circulates refrigerant. The dehumidification section 80 includes an air supply fan and an exhaust fan (not shown). The air supply blower generates an air supply flow in the air supply air path 610 . The exhaust blower generates an exhaust flow in the exhaust air passage 620 .

The heat exchange section 690 exchanges thermal energy between the air passing through the supply air passage 610 and the air passing through the exhaust air passage 620 by a total heat exchange method or a sensible heat exchange method. The heat exchange section 690 includes a heat exchange element 691 .

The heat exchange element 691 exchanges heat between the air passing through the supply air passage 610 (supply air flow) and the air passing through the exhaust air passage 620 (exhaust air flow). The heat exchange element 691 constitutes part of the supply air passage 610 and the exhaust air passage 620 .

With such a configuration, the indoor space can be humidified by controlling the operation of the heat exchange ventilator 700 so that the operation of the dehumidifying unit 680 is stopped and the humidifying unit 670 is operated in winter. . Also, in summer, the indoor space can be dehumidified by controlling the operation of the heat exchange ventilator 700 so that the operation of the humidifying unit 670 is stopped and the dehumidifying unit 680 is operated. Therefore, the heat exchange ventilator 700 can provide a comfortable indoor space in both summer and winter.

JP 2019-135420 A Japanese Patent Application No. 2020-104167

A compressor type refrigeration cycle is mainly composed of a compressor, a condenser, an expansion valve, and an evaporator. The dehumidification performance of the refrigeration cycle depends on the cooling performance of the condenser with respect to the refrigerant. That is, the higher the cooling performance of the condenser with respect to the refrigerant, the higher the dehumidifying performance of the refrigeration cycle.

In the case of the dehumidifying/humidifying heat exchange type ventilator described in Patent Document 2, the refrigerant is cooled by placing a condenser in the exhaust air passage for conveying air from indoors to outdoors. In an environment where the temperature of the air is high, the cooling performance of the condenser with respect to the refrigerant is degraded, and there is concern that dehumidification performance may be degraded. As means for enhancing the cooling performance of the condenser with respect to the refrigerant, for example, water cooling (liquid cooling) using water, which has a higher specific heat than air, can be mentioned. However, in order to perform water cooling, there are concerns about an increase in material costs due to the addition of water cooling pipes and an increase in running costs due to the supply of water for water cooling.

Therefore, the present invention solves the above-mentioned conventional problems, and improves the cooling performance of the condenser for the refrigerant and enhances the dehumidification performance while suppressing the increase in material costs and running costs even when the water cooling function is installed. An object of the present invention is to provide a heat exchange ventilator with a dehumidifying and humidifying function.

In order to achieve this object, the heat exchange type ventilator according to the present invention includes a supply air path, an exhaust air path, and heat exchange between the air passing through the supply air path and the air passing through the exhaust air path. a humidification unit for humidifying the air passing through the supply air passage; a humidification drainage pipe for draining part or all of the water supplied to the humidification unit from the humidification unit; A dehumidifying section for dehumidifying the air passing through the passage, a condenser for exchanging heat between the refrigerant and the air passing through the exhaust air passage in the refrigeration cycle by the dehumidifying section, and a condenser for conveying the refrigerant to the condenser. and a refrigerant pipe, wherein the refrigerant pipe has a branching portion for branching the flow of the refrigerant into two directions, and one of the refrigerant flows in the branched portion of the refrigerant flow is passed through the branching portion. a second refrigerant pipe for passing the other refrigerant in the flow of refrigerant branched by the branching portion; a flow of refrigerant through the first refrigerant pipe and a flow of refrigerant through the second refrigerant pipe The condenser has a heat radiation part for radiating the heat of the refrigerant to the air, and the first refrigerant pipe, the second refrigerant pipe, and the humidification drain pipe are provided with the heat radiation part and thereby achieve the intended purpose.

According to the present invention, even when a water cooling function is installed, it is possible to obtain the effect of improving the cooling performance of the condenser with respect to the refrigerant and enhancing the dehumidification performance while suppressing increases in material costs and running costs.

FIG. 1 is an external perspective view showing the configuration of a heat exchange type ventilator. FIG. 2 is an external perspective view showing the configuration of the humidifying section and the dehumidifying section. FIG. 3 is a partial cross-sectional view showing the configuration of the humidifying section and the condenser. FIG. 4 is an external perspective view showing the configuration of a conventional heat exchange ventilator equipped with a dehumidifying/humidifying function.

Hereinafter, embodiments for carrying out the present invention will be described with reference to the attached drawings. In the embodiment and modified examples, the same or equivalent constituent elements and members are denoted by the same reference numerals, and redundant explanations are omitted as appropriate. In addition, the dimensions of the members in each drawing are appropriately enlarged or reduced for easy understanding. Also, in each drawing, some of the members that are not important for explaining the embodiments are omitted.

Also, terms containing ordinal numbers such as first, second, etc. are used to describe various components, but these terms are used only for the purpose of distinguishing one component from other components, and the terms The constituent elements are not limited by

The configuration of a heat exchange ventilator 100 of the present invention will be described with reference to FIGS. 1 to 3. FIG. FIG. 1 is an external perspective view showing the configuration of a heat exchange type ventilator 100. As shown in FIG. FIG. 2 is an external perspective view showing the configuration of the humidifying section 40 and the dehumidifying section 50. As shown in FIG. FIG. 3 is a partial cross-sectional view showing the configuration of the humidifying section 40 and the condenser 53. As shown in FIG.

A heat exchange type ventilator 100 according to the present invention is installed on a wall surface of a house or the like, and has an air supply function of conveying outdoor air indoors and an exhaust function of conveying indoor air outdoors. Furthermore, the heat exchange type ventilator 100 has a heat exchange function of exchanging heat between the air conveyed from the outdoors to the indoors (supply air flow) and the air conveyed from the indoors to the outdoors (exhaust air flow); and a dehumidification/humidification function for dehumidifying or humidifying the

The heat exchange ventilator 100 includes an air supply air passage 10, an air exhaust passage 20, an outdoor air supply port 30, an air supply duct 32, an indoor air outlet 34, an outdoor air outlet 36, and a humidifying section. 40, a dehumidification section 50, and a heat exchange section 60.

The supply air passage 10 is an air passage for conveying outdoor air indoors.

The exhaust air duct 20 is an air duct for conveying indoor air to the outdoors.

The outdoor air supply port 30 is a suction port for drawing outdoor air into the heat exchange type ventilator 100 . The outdoor air supply port 30 constitutes a part of the supply air passage 10 . The outdoor air supply port 30 is connected to a duct (not shown) to communicate with the outdoors.

The air supply duct 32 is a duct for conveying the outdoor air sucked into the heat exchange type ventilator 100 from the outdoor side air supply port 30 to the humidifying section 40 . The supply air duct 32 forms part of the supply air passage 10 .

The indoor-side exhaust port 34 is a suction port for drawing indoor air into the heat exchange type ventilator 100 . The indoor-side exhaust port 34 forms part of the exhaust air passage 20 . The indoor air outlet 34 is connected to a duct (not shown) and communicates with an indoor living space such as a living room.

The outdoor-side exhaust port 36 is a blow-out port for blowing out the indoor air sucked into the heat exchange type ventilator 100 from the indoor-side exhaust port 34 to the outside. The outdoor-side exhaust port 36 forms part of the exhaust air passage 20 . The outdoor side exhaust port 36 is connected to a duct (not shown) to communicate with the outdoors.

The humidifying section 40 humidifies the air conveyed from the air supply duct 32 . The humidification unit 40 atomizes (atoms) water by a centrifugal crushing method, and humidifies the air conveyed from the air supply duct 32 by including the atomized water in the air. The humidifying section 40 has an indoor air supply port 41 .

The indoor-side air supply port 41 is an outlet for blowing out the air humidified by the humidifying section 40 indoors. The indoor-side air supply port 41 constitutes a part of the supply air passage 10 . The indoor air supply port 41 is connected to a duct (not shown) and communicates with an indoor living space such as a living room.

The dehumidifying section 50 dehumidifies the air passing through the supply air passage 10 using a compressor-type refrigerating cycle. The dehumidifying section 50 includes a dehumidifying section upper surface contour 51 , a dehumidifying section side contour 52 , a condenser 53 , a refrigerant pipe 54 , a compressor 55 , and a humidification drain pipe 56 .

The dehumidifier upper surface outer shell 51 is a sheet metal member that covers the upper surface of the dehumidifier 50 . The dehumidifying section upper surface outer shell 51 is formed by machining a metal plate material such as a galvanized steel plate. The dehumidifying section upper surface outer shell 51 is connected to the outdoor side air supply port 30 , the air supply duct 32 , the indoor side air outlet 34 , the outdoor side air outlet 36 and the humidifying section 40 . Further, the dehumidification section upper surface outer shell 51 has an air supply opening (not shown). The air supply opening communicates with the humidifying section 40 via the air supply duct 32 .

The dehumidification section side contour 52 is a sheet metal part that covers the side surface of the dehumidification section 50 . The dehumidifier side outer shell 52 is formed by machining a metal plate such as a galvanized steel plate.

The condenser 53 is a type of heat exchanger that exchanges thermal energy between the refrigerant in the refrigeration cycle and the air passing through the exhaust air passage 20 to cool the refrigerant. The condenser 53 has a heat radiation portion 53a.

The heat radiation portion 53a receives thermal energy from the refrigerant and releases the thermal energy received from the refrigerant into the air. The heat radiation portion 53a is formed by arranging a plurality of plate-shaped heat radiation plates in parallel. By forming the heat radiation portion 53a into a plate shape, the contact area between the exhaust flow (air passing through the exhaust air passage 20) and the heat radiation portion 53a is increased, and the heat radiation performance is enhanced. A material having high thermal conductivity such as aluminum or copper is used for the heat radiating portion 53a in order to easily receive heat from the refrigerant.

In addition, in the refrigerating cycle, the dehumidifying section 50 has an evaporator (not shown) in addition to the condenser 53 . The evaporator exchanges heat energy between the refrigerant and the supply airflow (air passing through supply airway 10 ) to cool the air passing through supply airway 10 . The evaporator has a configuration similar to that of the condenser 53 .

The refrigerant pipe 54 is a pipe for conveying the refrigerant from the condenser 53 to the compressor 55 and conveying the refrigerant conveyed to the compressor 55 to the condenser 53 again in the refrigeration cycle. That is, the refrigerant pipe 54 connects the condenser 53 and the compressor 55 . The refrigerant pipe 54 has a branch portion 54a, a first refrigerant pipe 54b, a second refrigerant pipe 54c, and a junction portion 54d.

The branch portion 54a branches the flow of the refrigerant passing through the refrigerant pipe 54 into two directions. The branch portion 54a is arranged upstream of the condenser 53 in the flow of the refrigerant.

The first refrigerant pipe 54b is a pipe for passing one refrigerant in the refrigerant flow branched by the branch portion 54a. The first refrigerant pipe 54b is arranged downstream of the branch portion 54a in the flow of refrigerant. The first refrigerant pipe 54b passes through the plurality of heat sinks that form the heat sink 53a from one end of the heat sink 53a to the other end of the heat sink 53a. In the embodiment of the present invention, "penetration" refers to contact between a penetrating object and an object to be penetrated. That is, the first refrigerant pipe 54b is in contact with the heat radiation plate that constitutes the heat radiation portion 53a while penetrating therethrough. Therefore, the thermal energy of the refrigerant moves to the heat radiation portion 53a through the first refrigerant pipe 54b.

The second refrigerant pipe 54c is a pipe for passing the other refrigerant in the refrigerant flow branched by the branch portion 54a. The second refrigerant pipe 54c is arranged downstream of the branch portion 54a in the flow of refrigerant. The second refrigerant pipe 54c penetrates the plurality of heat sinks that form the heat sink 53a from one end of the heat sink 53a to the other end of the heat sink 53a. That is, like the first refrigerant pipe 54b, the second refrigerant pipe 54c is in contact with the heat radiation plate that constitutes the heat radiation portion 53a while penetrating therethrough. Therefore, the thermal energy of the refrigerant moves to the heat radiating portion 53a through the second refrigerant pipe 54c.

The confluence portion 54d joins the flow of refrigerant (first refrigerant) flowing through the first refrigerant pipe 54b and the flow of refrigerant (second refrigerant) flowing through the second refrigerant pipe 54c. The confluence portion 54d is arranged downstream of the first refrigerant pipe 54b and the second refrigerant pipe 54c in the flow of refrigerant.

That is, the refrigerant flowing through the refrigerant pipe 54 is divided into the first refrigerant and the second refrigerant at the branch portion 54a. After that, at the confluence portion 54d, the first refrigerant and the second refrigerant merge again as one flow.

Compressor 55 produces a flow of refrigerant in the refrigeration cycle. That is, the compressor 55 generates a circulating flow among the condenser 53 , the refrigerant pipe 54 and the compressor 55 .

The humidification drain pipe 56 is a pipe for draining from the humidification unit 40 part or all of the water supplied to the humidification unit 40 by a water supply unit (not shown). The humidifying drain pipe 56 penetrates the plurality of heat sinks that form the heat sink 53a from one end of the heat sink 53a to the other end of the heat sink 53a. That is, the humidification drainage pipe 56 is in contact with the heat sink that constitutes the heat sink 53a while penetrating therethrough. As a result, the water passing through the humidification drain pipe 56 can receive a part of the thermal energy of the refrigerant received by the heat radiating portion 53a.

The water flow in the humidification drain pipe 56 may be generated by gravity, or may be generated by connecting a pump or the like to the humidification drain pipe 56 and operating the pump.

Note that the humidification drain pipe 56 may be arranged so as to be in contact with the refrigerant pipe 54 .

The heat exchange unit 60 exchanges thermal energy between the air (supply air flow) passing through the supply air passage 10 and the air (exhaust air flow) passing through the exhaust air passage 20 by a total heat exchange method or a sensible heat exchange method. . The heat exchange section 60 includes a heat exchange element 61 .

The heat exchange element 61 forms part of the supply air passage 10 and the exhaust air passage 20 .

The above is the configuration of the heat exchange ventilator 100 .

Next, the features of the present invention will be described using the dehumidifying operation of the heat exchange ventilator 100. FIG.

When the dehumidifying operation is started, the compressor 55 generates a circulation flow of refrigerant between the condenser 53 and the evaporator via the refrigerant pipe 54 . The refrigeration cycle by the circulating flow of the compressor 55 is mainly performed by repeating the following four steps. i.e.
1. Condensation process: In the condenser 53, heat is exchanged between the high-temperature and high-pressure refrigerant (gas) and the air (exhaust flow) passing through the exhaust air passage 20, and the refrigerant is converted by giving thermal energy to the exhaust flow. condensing process.

2. Expansion process: A process of reducing the pressure of a high-pressure refrigerant (liquid) (this process is performed by an expansion valve (not shown)).

3. Evaporation process: In the evaporator, heat is exchanged between the low-temperature, low-pressure refrigerant (liquid) and the air (supply airflow) passing through the supply airflow path 10, and the heat taken from the supply airflow is given to the refrigerant. A step of evaporating the refrigerant.

4. Compression step: A step of compressing the evaporated refrigerant (gas) with the compressor 55 to obtain a high-temperature, high-pressure refrigerant.

The supply air stream cooled in the evaporation process has a lower saturated water vapor content. Therefore, part of the moisture contained in the supplied airflow condenses in the evaporator to form water droplets. The condensed water droplets are temporarily stored in a drain pan (not shown) and drained out of the heat exchange ventilator 100 . As a result, the air in the supply airflow becomes dry air with less moisture than before passing through the evaporator, so the heat exchange ventilator 100 can provide dehumidified air to the indoor space. can.

The dehumidification performance in the evaporation process depends on the cooling performance of the refrigerant in the condensation process. That is, when the cooling performance of the refrigerant in the condensation process is low, the dehumidification performance in the evaporation process is also low. Therefore, in the present invention, by passing the humidification drainage pipe 56 through the heat radiating part 53a, in addition to the air cooling of the refrigerant using the exhaust flow, the cooling performance of the condenser 53 is improved by the liquid cooling of the refrigerant using the humidification drainage. ing. In addition, water cooling uses the humidification drain pipe 56 for draining water from the humidification unit 40 and the water drained from the humidification unit 40. Therefore, while suppressing increases in material costs and running costs, the condenser 53 for the refrigerant The effect of improving the cooling performance of the air conditioner and improving the dehumidification performance can be expected.

In addition, the contact area between the heat radiating portion 53a and the humidification drain pipe 56 is increased by contacting the humidifying drain pipe 56 with the heat radiating portion 53a while penetrating it, compared to the case where the humidifying drain pipe 56 is only brought into contact with the heat radiating portion 53a. growing. Therefore, the amount of heat energy transferred from the heat radiating portion 53a to the water passing through the humidification drainage pipe 56 can be increased. As a result, the effect of further improving the cooling performance of the condenser 53 with respect to the refrigerant and further improving the dehumidification performance can be expected.

Further, by branching the refrigerant pipe 54 in two directions, the effect of further increasing the cooling capacity for the refrigerant can be expected. The mechanism will be described below.

First, as general knowledge, the change of state (solid, liquid, gas) of a substance including the refrigerant of the present invention is related to the transfer of thermal energy. Of this thermal energy, the heat required to change only the temperature without changing the state of the substance is called sensible heat. Latent heat is the heat required to change the state of a substance without changing its temperature. The sum of sensible heat and latent heat is called total heat (enthalpy). In other words, in terms of the content of the present invention, latent heat is important for changing the state of the refrigerant passing through the condenser 53 from gas to liquid.

Here, when the flow of the refrigerant is divided into two directions as in the present invention, it is necessary to change the state of the refrigerant flowing in each direction from gas to liquid, compared to the conventional case where the refrigerant flows only in one direction. the amount of latent heat is reduced. In other words, the present invention can obtain a larger amount of refrigerant whose state has been changed from gas to liquid in the condensation process, as compared with the conventional art. Therefore, in the present invention, when the state of the refrigerant changes from liquid to gas in the evaporation process after the condensation process, the amount of sensible heat that the refrigerant absorbs from the air (supply air flow) passing through the supply air passage 10 is reduced compared to the conventional technique. will increase. That is, in the present invention, the amount of thermal energy taken from the supplied airflow by the refrigerant in the evaporation process is greater than in the conventional case, so the temperature of the supplied airflow after passing through the evaporator is also lower than in the conventional case. Therefore, according to the present invention, the amount of saturated water vapor in the supplied air stream is reduced as compared with the prior art, so that the effect of improving the dehumidifying ability can be expected.

Although the heat exchange ventilator according to the present invention has been described above based on the present embodiment, the present invention is not limited to the present embodiment. As long as it does not deviate from the gist of the present invention, the present embodiment includes various modifications that can be conceived by those skilled in the art, and forms constructed by combining the components of different embodiments are also included within the scope of the present invention. .

The heat exchange ventilator according to the present invention improves the cooling efficiency of the refrigerant used in the refrigeration cycle by liquid cooling using water by devising the arrangement of the refrigerant inflow points, and the refrigerant is cooled by the condenser. Since it enables improvement of cooling capacity and dehumidification performance, it is useful as a ventilator or the like having a dehumidification/humidification function used to control the humidity in an indoor space.

10 Air supply air passage 20 Exhaust air passage 30 Outdoor side air supply port 32 Air supply duct 34 Indoor side air outlet 36 Outdoor side air outlet 40 Humidification section 41 Indoor side air supply port 50 Dehumidification section 51 Dehumidification section upper surface outline 52 Dehumidification section side surface outline 53 Condenser 53a Heat dissipation part 54 Refrigerant pipe 54a Branch part 54b First refrigerant pipe 54c Second refrigerant pipe 54d Merging part 55 Compressor 56 Humidification drain pipe 60 Heat exchange part 61 Heat exchange element 100 Heat exchange ventilator

Claims (2)

a supply air passage;
an exhaust air passage;
a heat exchange element for exchanging heat between the air passing through the supply air passage and the air passing through the exhaust air passage;
a humidifying section for humidifying the air passing through the air supply air path;
a humidification drainage pipe for draining part or all of the water supplied to the humidification unit from the humidification unit;
a dehumidifying section for dehumidifying the air passing through the air supply air passage;
a condenser for exchanging heat between the refrigerant and the air passing through the exhaust air passage in the refrigeration cycle by the dehumidifying section;
refrigerant piping for conveying the refrigerant to the condenser;
A heat exchange ventilator comprising
The refrigerant pipe is
a branching portion for branching the flow of the refrigerant into two directions;
a first refrigerant pipe for passing one refrigerant in the flow of the refrigerant branched by the branching portion;
a second refrigerant pipe for passing the other refrigerant in the flow of the refrigerant branched by the branching part;
a merging portion for joining the flow of refrigerant passing through the first refrigerant pipe and the flow of refrigerant passing through the second refrigerant pipe;
with
The condenser is
Having a heat radiating part for radiating the heat of the refrigerant to the air,
The first refrigerant pipe, the second refrigerant pipe and the humidification drain pipe,
A heat exchange type ventilator characterized by penetrating through the heat radiating section. The heat dissipation part is
A plurality of plate-shaped heat sinks,
The first refrigerant pipe, the second refrigerant pipe and the humidification drain pipe,
2. The heat exchange type ventilator according to claim 1, wherein the radiator plate is penetrated.

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