JP2005037107A - Ventilation device for apartment house - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To prevent obstruction to effective ventilation unless an outward window is opened in ventilation of a living room in an apartment house having a kitchen, a bathroom, a toilet, etc., disposed in a second and a third rooms rather than in the living room as a first room, with machine ventilation by class III ventilation mostly conducted at the parts, of which operation generates negative pressure in the living room to induce outside air. <P>SOLUTION: This ventilation device is a machine ventilation device capable of conducting class I ventilation including a total heat exchanger to be used for cooling and heating at an slide opening part installed at an upper part of a window facing the outside of the apartment house. Temperature, differential pressure, and carbon dioxide gas concentration sensors are provided, so that automatic ventilation operation is conducted in accordance with inside and outside conditions to secure effective ventilation quantity. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

Detailed Description of the Invention

According to Article 20-2 of the Building Standards Act Construction Order, the minimum required ventilation per person is 20m ³ / h · person, and the Building Management Law stipulates that the carbon dioxide concentration in the room is 1,000ppm.

  In apartment buildings, the necessary ventilation is not necessarily obtained by mechanical ventilation, and a glass sliding window is attached to the upper part of the window where the living room is in contact with the outside air, and the resident opens and closes the sliding window as necessary. It has become.

  In most apartments, kitchens, baths, toilets, etc. are often placed in the 2nd and 3rd rooms rather than the rooms that are in contact with the outside. The high living room attracts fresh air as a draft due to negative pressure, and the resident opens and closes the window and the glass sliding window as necessary.

  In recent years, household appliances have been widely used, and there is no opening and closing of windows for taking in outside air, including the spread of air-conditioning and washing machines with dryers and the invasion of insects and reasons for crime prevention. The living space is also increasing in the state that the room is closed without opening.

  There are various types of ventilators for apartments, but the rooms facing the outer walls are limited in structure and dimensions unless they are installed at the time of new construction, and are difficult to retrofit.

  When a resident opens a window, it becomes a case where it is recognized that it cannot endure as a result of the concentration of carbon dioxide gas in the room being increased except for taking in and out of the room, and humans are too insensitive to notice it.

  As described above, there is no guarantee that the necessary ventilation rate of the room in the apartment house stipulated in the Building Standards Act is correctly secured.

Problems to be solved by the invention

  The first living room facing the outside, which is rarely used normally, will be mechanically ventilated.

  The first, second, third type mechanical ventilation and natural ventilation are automatically switched according to the external environment and indoor conditions.

  A built-in total heat exchanger is used for energy saving when cooling and heating the living room, and it is used separately from the interim period.

Means for solving the problem

  As shown in FIGS. 1 and 2, the ventilator is installed so that the window frame is sandwiched between the glass sliding windows on the upper part of the outer wall window frame, and the window body can be opened and closed. .

  The installed ventilator has a temperature and pressure sensor outside, a temperature and pressure sensor inside the room, a carbon dioxide concentration sensor, and a carbon dioxide concentration meter and a fine differential pressure gauge inside the main body.

  If air conditioning is not required depending on the season, ventilate by changing the ventilation path with a damper.

  The embodiment will be described with reference to the drawings. The sliding window of the upper opening 2 of the window main body 1 facing the outside in FIG. 1 is slid, and the ventilation frame is fixed by sandwiching the window frame sash 5 with screws 17 as shown in FIG.

  Since the main body is structured to be sandwiched between the window frame sash 5, the main structure portion is preferably made of a light material in order to measure the weight of the entire body.

  Further, in FIG. 2, the elastic material 18 is used for the left portion directly sandwiching the glass so that the glass is not damaged.

  The main parts of the main body in FIG. 3 are the main structural parts in the indoor side outer box 9, the outdoor side outer box 10, the total heat exchanger 11, the pressure fan 12, the switching damper 13, the damper driving solenoid 14, the power source part 15, The controller 16, the display 26, the inside / outside temperature sensor 22, the inside / outside pressure sensor 23, the indoor carbon dioxide concentration sensor 24, the power cord 28, and the like.

  Although the pressured fan 12 is not specified in particular, since it is an axial flow type in FIG. 3, it has a limit load characteristic, and there is no problem in increasing the shaft power even if the air volume increases due to the external wind pressure on the air supply side. On the side, if the air volume is extremely reduced, surging may occur, causing vibration and noise. Therefore, the operating current is always monitored, and the fan operation is turned on and off by cooperative control with the differential pressure gauge 25.

  In FIG. 3, solid arrows B and C indicate an intermediate air flow, and dotted arrows indicate an air flow during cooling and heating.

  When the damper is opened and closed, the vertically opened state in FIG. 3 is opened and the horizontal case is closed, but when closed, there is a flow of air inside and outside through the total heat exchanger 11, but the passage resistance is large and the fan 12 is stopped. The passing air volume is minimal.

  In the present invention, mechanical ventilation is performed in order to always take in an appropriate amount of outside air according to the outside air condition and the indoor condition throughout the season, and the resident only turns on and off the main power supply and the sub power supply.

  The operation will be explained with reference to FIG. 3. The control flow of the basic operation is as shown in FIG.

  When an external gust occurs, even when the sub power is turned on, the operation is the same as when the main power is turned off, and the air supply / exhaust fans 12a and 12b are stopped by a signal from the inside / outside micro differential pressure sensor 23, and the dampers 13a and 13b are closed. It becomes only natural ventilation in the total heat exchanger.

  Even when the resident is absent, when the main power is turned on, the air supply / exhaust fans 12a and 12b are stopped, but the air supply / exhaust dampers 13a and 13b automatically open and close depending on the temperature difference between the inside and outside of the room when the external factor is normal. .

  When the sub power supply is on, the air supply / exhaust fans 12a and 12b are operated during the intermediate period, and the dampers 13a and 13b are automatically opened and closed due to a temperature difference between the inside and outside of the room, and the first-class ventilation is performed on the living room.

  When third-class ventilation is performed in the kitchen, bathroom, toilet, etc., the air supply / exhaust fan 12 stops when the room becomes negative pressure by the internal / external pressure sensor 23, and the air supply / exhaust damper 13 opens and closes due to the temperature difference between the inside and outside of the room. Leave the room to natural air supply.

  Switching of the damper 13 due to the temperature difference between the inside and outside of the room is mainly open during the intermediate period and closes mainly during the cooling and warming, and passes through the total heat exchanger.

  If the carbon dioxide concentration exceeds the set value, the air supply / exhaust fans 12a, 12b perform the first type ventilation regardless of the season, but when using a kitchen fan or the like, the air supply fan 12a is operated, 13a is opened, and the exhaust fan 12b is Stop and 13b are open, and second-class ventilation is performed for the living room.

  The judgment conditions for cooling are to> 28 ° C. and to-tc> 4 ° C. deg as the initial settings and the set values can be changed if the outside air temperature is to ° C. and the room temperature is tc ° C.

  The judgment condition during heating is to <15 ° C. and tc-to> 10 ° C. deg at the initial setting, and the set value can be changed.

The invention's effect

  The present invention is implemented in the form as described above, and obtains the effects described below.

  The present invention is an apparatus that automatically performs first-class, second-class, third-class mechanical ventilation, and natural ventilation of a living room regardless of external factors throughout the year and adapted to ventilation in other indoor rooms. Allow proper ventilation regardless of consciousness.

  When cooling and heating, ventilate while maintaining comfort by passing through a total heat exchanger so as not to feel energy saving and uncomfortable feeling of cold and warm air.

  If an internal and external humidity sensor is added for the purpose of improving ventilation operation accuracy, a comfortable indoor environment due to enthalpy difference can be added.

It is a schematic diagram of the window frame which attaches the ventilation apparatus shown in Claim 1. It is the schematic of the plane of the ventilation apparatus shown in Claim 2, a front, and a side surface. It is outline | summary explanatory drawing of the ventilation apparatus shown in Claim 3. It is outline | summary description of the ventilation apparatus control operation | movement flowchart shown in Claim 3.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Window body 2 Upper slide sliding window 3 Outer wall 4 Wooden frame 5 Window sash 6 Slide part fixed glass 7 Slide part moving glass 8 Window sash stopper 9 Indoor side outer box 10 Outdoor side outer box 11 Total heat exchanger 12 Pressure fan 13 Damper 14 Solenoid 15 Power supply unit 16 Control unit 17 Fixing screw 18 Buffer material 19 Filter 20 Insect screen 21 Air vent 22 Temperature sensor 23 Pressure sensor 24 Carbon dioxide gas concentration sensor 25 Slight differential pressure gauge 26 Carbon dioxide gas concentration meter 27 Display unit 28 Power cord

Claims (3)

A ventilation device attached to the opening of the upper part of the window facing the outer wall of the apartment house. The ventilation device according to claim 1, wherein automatic operation is performed by adding a temperature, pressure, and carbon dioxide sensor. The ventilator according to claim 1, wherein a total heat exchanger is incorporated in order to save energy during cooling and heating.

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