JP2020201015A5

JP2020201015A5 -

Info

Publication number: JP2020201015A5
Application number: JP2019109831A
Authority: JP
Filing date: 2019-06-12
Publication date: 2021-10-28

Description

また、熱交換換気装置１０での熱交換器１３を利用した換気においては、排気用送風機１２を運転することにより、室内空気は、室内側排気ダクト１１３を介して室内側吸込口１０３から矢印Ｃのように吸い込まれ、排気風路１０７および熱交換器１３を通り、排気用送風機１２により室外側吹出口１０４から矢印Ｄのように吹き出され、室外側排気ダクト１１４を介して屋外に排気される。 Further, in the ventilation using the heat exchanger 13 in the heat exchange ventilation device 10, by operating the exhaust blower 12, the indoor air is sent from the indoor side suction port 103 through the indoor side exhaust duct 113 to the arrow C. sucked as through the exhaust air passage 107 and heat exchanger 13 is blown by the air discharge fan 12 from the outdoor side outlet 104 as indicated by an arrow D, is exhaust outdoors via the outdoor exhaust duct 114 NS.

ダンパ制御部４３は、熱交換換気装置１０、換気対象空間に個別に設置された室内温湿度センサ２１、換気対象空間に個別に設置された外気温湿度センサ２２、ＣＯ_２センサ２３、においセンサ２４、人感センサ２５、換気対象空間の各部屋に設置された操作スイッチ５０、外部機器６０などから送信された信号を受信し、受信した信号に基づいて風量制御ダンパ羽根４１の開閉および開度を調整する制御を行うことができる。これにより、風量切替ダンパ４０は、第１分岐口を通る空気の換気風量の調整が可能とされている。ダンパ制御部４３は、給気流の空気質を示す信号および排気流の空気質を示す信号の内少なくとも一方に基づいて風量制御ダンパ羽根４１の開度を制御することができる。空気質には、たとえば温度、湿度およびＣＯ_２濃度などが含まれる。 The damper control unit 43 includes a heat exchange ventilation device 10, an indoor temperature / humidity sensor 21 individually installed in the ventilation target space, an outside temperature / humidity sensor 22 individually installed in the ventilation target space, a CO ₂ sensor 23, and an odor sensor 24. , The human sensor 25, the operation switch 50 installed in each room of the ventilation target space, the signal transmitted from the external device 60, etc. are received, and the opening / closing and opening degree of the air volume control damper blade 41 is opened and closed based on the received signal. Control to adjust can be performed. As a result, the air volume switching damper 40 can adjust the ventilation air volume of the air passing through the first branch port. Damper control unit 43 may control the opening degree of the air volume control damper blade 41 based on at least one of the signal indicating the air quality of the signals and the exhaust airflow indicating the air quality of the air supply. Air quality includes, for example, temperature, humidity and CO ₂ concentration.

（浴室１の湿気を急速排気する場合）
つぎに、熱交換換気システム１００が浴室１の湿気を急速排気する動作について説明する。浴室１には、操作スイッチ５０、室内温湿度センサ２１が設置されている。室内温湿度センサ２１は、予め決められた周期で浴室１の空気の湿度を検出し、検出した湿度が予め決められた湿度閾値以上である場合に、湿度が湿度閾値以上であることを示す検出信号を排気用ダクト分岐継ぎ手３０の風量切替ダンパ４０１のダンパ制御部４３に送信する。 (When the humidity in the bathroom 1 is quickly exhausted)
Next, the operation in which the heat exchange ventilation system 100 rapidly exhausts the moisture in the bathroom 1 will be described. An operation switch 50 and an indoor temperature / humidity sensor 21 are installed in the bathroom 1. The indoor temperature / humidity sensor 21 detects the humidity of the air in the bathroom 1 at a predetermined cycle, and when the detected humidity is equal to or higher than the predetermined humidity threshold, it indicates that the humidity is equal to or higher than the humidity threshold. The signal is transmitted to the damper control unit 43 of the air volume switching damper 401 of the exhaust duct branch joint 30.

他の熱交換換気装置２１０が上述した熱交換換気装置１０と異なる点は、浴室１の空気を取り込む吸込口として浴室側吸込口１２１を有する点と、浴室側吸込口１２１から取り込んだ浴室１の空気を熱交換器１３に通さずに迂回させて室外側吹出口１０４から屋外に向けて排出するバイパス風路１２２を筐体１０５の内部に有する点である。また、浴室側吸込口１２１には、後述する第２分岐口３６と浴室側吸込口１２１とを接続して浴室１の空気を他の熱交換換気装置２１０に取り込むための浴室排気風路を構成する浴室排気ダクト１１３３が接続されている。なお、理解の容易のため、バイパス風路１２２と浴室排気ダクト１１３３とを図７に併せて示している。 The other heat exchange ventilator 210 differs from the heat exchange ventilator 10 described above in that it has a bathroom side suction port 121 as a suction port for taking in the air of the bathroom 1 and that the bathroom 1 taken in from the bathroom side suction port 121. The point is that the housing 105 has a bypass air passage 122 that diverges the air without passing it through the heat exchanger 13 and discharges the air from the outdoor outlet 104 toward the outside. Further, the bathroom side suction port 121 is configured with a bathroom exhaust air passage for connecting the second branch port 36 and the bathroom side suction port 121, which will be described later, to take in the air of the bathroom 1 into another heat exchange ventilation device 210. The bathroom exhaust duct 1133 is connected. Incidentally, for ease of understanding, also shows a bypass air passage 122 and bathroom exhaust duct 1133 in FIG.

浴室１の空気の第１の風路は、第２室内側排気ダクト１１３２を通って流れてきた浴室１の空気が浴室分岐口３１から排気用ダクト分岐継ぎ手３０ａの内部に流れ込み、主ダクト接続口３５から第１室内側排気ダクト１１３１に流れる風路である。浴室１の空気の第２の風路は、第２室内側排気ダクト１１３２を通って流れてきた浴室１の空気が浴室分岐口３１から第２分岐口３６を介して浴室排気ダクト１１３３に流れ込み、他の熱交換換気装置２１０の浴室側吸込口１２１に流れる風路である。浴室１の空気の第１の風路と、浴室１の空気の第２の風路とは、風量切替ダンパ４０５により切替可能である。 In the first air passage of the air in the bathroom 1, the air in the bathroom 1 flowing through the exhaust duct 1132 on the second indoor side flows from the bathroom branch port 31 into the exhaust duct branch joint 30 a and is connected to the main duct. This is an air passage that flows from the port 35 to the first indoor side exhaust duct 1131. In the second air passage of the air in the bathroom 1, the air in the bathroom 1 flowing through the exhaust duct 1132 on the second indoor side flows from the bathroom branch port 31 through the second branch port 36 into the bathroom exhaust duct 1133. This is an air passage that flows through the bathroom side suction port 121 of another heat exchange ventilation device 210. The first air passage of the air in the bathroom 1 and the second air passage of the air in the bathroom 1 can be switched by the air volume switching damper 405.

（熱交換換気装置１０の給気温度を高くする場合）
つぎに、熱交換換気システム１００が熱交換換気装置１０からの給気流の温度である給気温度を高くする動作について説明する。熱交換換気装置１０は、外気と室内空気とで熱交換をする。すなわち、熱交換換気装置１０は、室内空気の温度と外気の温度との間で温度交換をする。このため、熱交換換気装置１０は、熱交換器１３を通る排気流の温度が、室内の適正温度に近いほうが、熱交換換気装置１０の機能をより発揮することができる。たとえば、冬季に洗面所２などの空気調和されていない部屋からの排気と外気との間で熱交換をするよりも、居室等の空気調和された部屋からの排気との間で熱交換するほうが、室内に給気される給気流の温度である給気温度が高くなる。これにより、給気による居室の温度低下が少なくなる。 (When raising the supply air temperature of the heat exchange ventilation device 10)
Next, the operation of the heat exchange ventilation system 100 to raise the supply air temperature, which is the temperature of the supply airflow from the heat exchange ventilation device 10, will be described. The heat exchange ventilation device 10 exchanges heat between the outside air and the indoor air. That is, the heat exchange ventilation device 10 exchanges the temperature between the temperature of the indoor air and the temperature of the outside air. Therefore, in the heat exchange ventilation device 10, the function of the heat exchange ventilation device 10 can be more exerted when the temperature of the exhaust flow passing through the heat exchanger 13 is close to the appropriate temperature in the room. For example, it is better to exchange heat between the exhaust from an air-conditioned room such as a living room and the outside air than to exchange heat between the exhaust from an air-conditioned room such as washroom 2 and the outside air in winter. , supply air temperature is higher is the temperature of the charge air flow to be fed air into the room. This reduces the temperature drop in the living room due to air supply.

Claims

An air supply air passage for supplying outdoor air to the room, an exhaust air passage for exhausting the air in the room to the outside, an exhaust flow flowing through the exhaust air passage, and an air supply air flow flowing through the air supply air passage. With a heat exchanger that exchanges heat with and from, a heat exchange ventilator provided inside the housing, and a plurality of the above-mentioned rooms with an exhaust duct branch joint for connecting via a plurality of ducts. There,
Of the plurality of ducts, the main duct connection port to which the main duct connected to the heat exchange ventilation device is connected, and
Among the plurality of ducts, a plurality of first branch ports to which a plurality of branch ducts individually connected to the room are connected, and
An air volume switching damper provided at a plurality of the first branch ports and capable of opening and closing the first branch port at an arbitrary opening degree based on a signal received from the outside.
Exhaust duct branch joint characterized by being equipped with.

The air volume switching damper is
An air volume control damper blade provided at the first branch port to open and close the first branch port at an arbitrary opening degree, and
A drive motor that opens and closes the air volume control damper blades,
A damper control unit that controls the drive motor to control the opening degree of the air volume control damper blades,
The exhaust duct branch joint according to claim 1, wherein the exhaust duct branch joint is provided.

A plurality of first differential pressure sensors for detecting the air volume of air flowing through the first branch port are provided in the plurality of first branch ports.
Said damper control unit, for controlling the opening of the supply the signal and at least one said air flow control damper blade on the basis of among the signal indicating the air quality of the exhaust air flow showing the air quality of the air flow,
2. The exhaust duct branch joint according to claim 2.

A second branch port further branched from the first branch port of one of the plurality of first branch ports, and a second branch port.
An air volume switching damper provided at the second branch port and capable of opening and closing the second branch port at an arbitrary opening degree based on a signal received from the outside.
The exhaust duct branch joint according to claim 2 or 3, wherein the exhaust duct branch joint is provided.

A plurality of first differential pressure sensors for detecting the air volume of air flowing through the first branch port are provided in the plurality of first branch ports.
The damper control unit controls the opening degree of the air volume control damper blade based on the detection result of the first differential pressure sensor.
The exhaust duct branch joint according to any one of claims 2 to 4.

Based on the detection result of the first differential pressure sensor, it is possible to control the opening and closing of the air volume switching damper provided at the first branch port where the first differential pressure sensor is arranged, and the heat exchange ventilation device. Provided with an air volume control unit capable of transmitting a signal instructing an increase or decrease in the operating power in the above to the heat exchange ventilation device.
The exhaust duct branch joint according to claim 5.

A second differential pressure sensor for detecting a volume of air flowing through the main duct joint before Symbol main duct connection ports,
The damper control unit controls the opening degree of the air volume control damper blade based on the detection result of the second differential pressure sensor.
The exhaust duct branch joint according to any one of claims 2 to 6.