JP2015200479A - Solar heat collection type air supply system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To deal with environmental change automatically and to deal with air ventilation at all times.SOLUTION: A solar heat collection type air supply system includes: a heat collector for collecting solar heat and heating internal air; a blower for blowing heated air to the indoors; a supply passage for supplying the outdoor air to the blower; a flow passage switching unit for switching the air blown out from the blower between the outdoor air and heated air from the heat collector; and air amount change means for changing an air amount blown out by the blower. A control unit switches between a first mode for supplying the heated air from the heat collector to the indoors with a small air amount, a second mode for supplying the heated air from the heat collector to the indoors with a large air amount, a third mode for supplying the outdoor air to the indoors with a large air amount and a fourth mode for supplying the outdoor air to the indoors with a small air amount, according to a measurement result of temperature of the air supplied to the blower.

Description

  The present invention relates to a solar heat collection type air supply system that supplies solar air collected and heated to the room.

  There is a solar heat collection type air supply system for the purpose of assisting indoor heating during winter sunshine. In Patent Document 1, a heat collecting box is installed on the outer wall, and air heated in the heat collecting box is sent to the room by a blower. When heating is unnecessary, the outside air is sent to the room by the blower to ventilate the room. Also shown is what you can use.

  However, in the thing shown in the said patent document 1, a user must change a driving | running state each time with respect to the change of an environment, and it enables it to always perform ventilation. It is also difficult.

Japanese Patent Publication No. 63-34381

  This invention is made | formed in view of the said problem, and makes it a subject to provide the solar-heat collection type | formula air supply system which can respond to regular ventilation while responding automatically to an environmental change.

  A solar heat collection type air supply system according to the present invention includes a heat collector that collects solar heat and heats internal air, a blower for sending air heated by the heat collector indoors, and outdoor air Supply path for supplying air to the blower, a flow path switching unit for switching air sent from the blower to outdoor air from the supply path and heated air from the heat collector, and air volume changing means for changing the amount of air sent by the blower A first mode for supplying warm air from the heat collector indoors with a small air volume by a combination of the flow path switching by the flow path switching unit and the air volume change by the air volume changing means; A second mode for supplying warm air from a heater indoors with a large air volume, a third mode for supplying outdoor air indoors with a large air volume, and a fourth mode for supplying outdoor air indoors with a small air volume The mode can be switched freely and used for the blower. By measuring the temperature of the air, it is characterized in that it comprises a control unit for switching the four modes in accordance with the measurement result.

  According to the present invention, it is possible to reduce the air conditioning load by operating in summer as well as in winter.

It is sectional drawing which shows the winter operation | movement in an example of embodiment of this invention. It is sectional drawing which shows summer operation | movement same as the above. It is the schematic which shows the whole structure same as the above. It is a fragmentary sectional view of the other example same as the above. It is sectional drawing which shows the winter operation | movement in another example. It is sectional drawing which shows summer operation | movement same as the above.

  Hereinafter, the present invention will be described in detail with reference to the illustrated embodiment. In the figure, reference numeral 2 denotes an outer wall of a house, and a heat collector 1 is arranged on the south surface of the outer wall 2 and receiving sunlight during winter days. is there. The heat collector 1 has a box shape having a space 10 through which air is passed, and has a heat collecting plate 11 for collecting solar heat on the surface, and a heat storage material 12 is arranged on the inner surface on the back side. It has become. As the heat collecting plate 11, a light-transmitting flat plate, a metal plate, or the like can be used.

  The heat collector 1 is provided with an intake port 13 that can be opened and closed by a movable louver on the lower side, and an exhaust path that sends out heated air to a blower 4 that blows air toward a plurality of rooms in the house on the upper side. 14 is connected. The blower 4 is installed in the shed 21. In the figure, 22 is a living room.

  Further, a supply path 3 for sending outside air from the outside air intake 30 to the blower 4 is connected to the blower 4, and the exhaust path 14 is connected in the middle of the supply path 3. Moreover, it has the flow-path switching damper 5 for switching whether the air sent out by the blower 4 is the outside air or the air heated by the heat collector 1.

  Although the outside air intake 30 is arranged on the south surface of the same house as the heat collector 1 in the drawing, it may be arranged on the north surface side where outside air having a lower temperature can be taken in the summer.

  As shown in FIG. 1, the flow path switching damper 5 is set in a state in which air from the heat collector 1 is sent to the blower 4 as shown in FIG. 1. Operated with air volume. The air heated by the heat collector 1 is sent to the living room and utilized as base heating.

  In the winter night, the blower 4 is operated with a small amount of air in order to use the air heated by heat radiation from the heat storage material 12 disposed in the heat collector 1. The intrusion of cold air will be suppressed while performing regular ventilation.

  In the summer, as shown in FIG. 2, the flow path switching damper 5 is set in a state in which the outside air is sent to the blower 4, and is constantly ventilated with a small air volume during the summer. And in the summertime night, the fan 4 is operated with a large amount of air and the room is ventilated to provide base cooling.

  Here, it is preferable that the four modes obtained by the combination of the flow path switching by the flow path switching damper 5 and the operating air volume of the blower 4 are automatically switched as follows.

  For example, a temperature sensor 61 for measuring the temperature of air between the flow path switching damper 5 and the blower 4 in the supply path 3 is provided, and a control unit (not shown) is provided according to the measurement result of the temperature sensor 61. The operations of the flow path switching damper 5 and the blower 4 are controlled and switched.

  In this case, if the temperature measured by the temperature sensor 61 is less than 10 ° C., for example, the control unit sets the flow path switching damper 5 to the heat collector 1 side and operates the blower 4 with a small air volume. If the temperature measured by the temperature sensor 61 is, for example, 10 ° C. or higher and lower than 23 ° C., the control unit sets the flow path switching damper 5 to the heat collector 1 side and operates the blower 4 with a large air volume.

  If the temperature measured by the temperature sensor 61 is, for example, 23 ° C. or higher and lower than 28 ° C., the control unit sets the flow path switching damper 5 to the outside air side and operates the blower 4 with a large air volume. If the temperature measured by the temperature sensor 61 is, for example, 28 ° C. or higher, the control unit sets the flow path switching damper 5 to the outside air side and operates the blower 4 with a small air volume.

  The threshold value 23 ° C. in the above example is a value when switching from the state where the flow path switching damper 5 is set on the heat collector 1 side to the outside air side. The threshold value when switching from the state in which the flow path switching damper 5 is set on the outside air side to the heat collector 1 side is, for example, 18 ° C. These threshold values may be changed according to the user's preference.

  In addition to the temperature sensor 61, a temperature sensor 62 that measures the temperature of the living room 22 may be provided, and the control unit may automatically switch the mode according to the measurement results of the two temperature sensors 61 and 62. In this case, if the room temperature measured by the temperature sensor 62 is lower than a predetermined temperature (for example, 18 ° C.) set in advance, the control unit sets the flow path switching damper 5 to the heat collector 1 side. If the difference (T2−T1) between the room temperature T1 measured by the temperature sensor 62 and the temperature T2 measured by the temperature sensor 61 of the air sent from the heat collector 1 to the blower 4 is large, the blower 4 is used. Drive with a large air flow. If the temperature difference (T2-T1) is small, the blower 4 is operated with a small air volume.

  When the room temperature of the room measured by the temperature sensor 62 is equal to or higher than a predetermined temperature set in advance, the control unit sets the flow path switching damper 5 to the outside air side. Further, if the difference (T1-T3) between the room temperature T1 of the room measured by the temperature sensor 62 and the temperature T3 measured by the temperature sensor 61 of the outside air sent to the blower 4 is large, the blower 4 is operated with a large air volume. If the temperature difference (T1-T3) is small, the blower 4 is operated with a small air volume.

  FIG. 3 shows an example of the entire solar heat collection type air supply system in a two-story house. Air is sent from the blower 4 to each room 22 on the second floor. In the figure, 45 is an exhaust device for continuous ventilation such as a ventilation fan installed in a toilet room or the like, and 7 in the figure is a continuous ventilation device for a room on the first floor.

  As for air volume switching, in addition to adjusting the rotational speed of the blower 4, as shown in FIG. 4, a large air volume blower 4 and a small air volume air blower 41 are arranged in parallel to switch between them. Also good. In the figure, reference numeral 42 denotes a switching damper.

  In addition, the air volume may be switched by adjusting the opening amount using a movable louver provided in the intake port 13 of the heat collector 1 or a movable louver (not shown) disposed in the outside air intake port 30.

  5 and 6 show another embodiment. This is provided with an outside air intake 30 at the upper part of the heat collector 1 and a flow path switching damper 5 arranged in the heat collector 1. A state in which the road switching damper 5 is set is shown.

  Reference numeral 15 in the figure denotes an exhaust port for removing air heated in the heat collector 1 in the summer, and with a shutter, the control unit can be closed in the winter and opened in the summer. .

  It goes without saying that the flow path switching damper 5 may be manually switched or the air flow rate by the blower 4 can be manually set regardless of the measurement results of the temperature sensors 61 and 62.

  Further, the flow path switching damper 5 can be set in a state where the air on the heat collector 1 side and the outside air can be mixed and sent to the blower 4 according to the measurement results of the temperature sensors 61 and 62. By doing so, a better indoor environment can be obtained.

DESCRIPTION OF SYMBOLS 1 Heat collector 2 Outer wall 3 Supply path 4 Blower 5 Flow path switching damper 21 Hut back 22 Living room 61 Temperature sensor 62 Temperature sensor

Claims (1)

A heat collector that collects solar heat and heats the internal air, a fan for sending the air heated by the heat collector indoors, a supply path for supplying outdoor air to the fan, and a fan sends out A flow path switching unit for switching air between outdoor air from the supply path and heated air from the heat collector, and an air volume changing means for changing the air volume sent out by the blower,
A first mode for supplying warm air from the heat collector indoors with a small air volume by a combination of the flow path switching by the flow path switching unit and the air volume change by the air volume changing means, and from the heat collector Switch between the second mode for supplying warm air indoors with a large air volume, the third mode for supplying outdoor air indoors with a large air volume, and the fourth mode for supplying outdoor air indoors with a small air volume. A solar heat collection type air supply system comprising a control unit that is flexible and that measures the temperature of the air supplied to the blower and switches between the four modes according to the measurement result.

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