JPS6232374B2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention aims to purify indoor air while ensuring indoor air conditioning, and uses one blower and one small ventilation tube to perform indoor air circulation and forced air supply/exhaust ventilation. The purpose of the present invention is to provide an air blowing device that can simultaneously perform the following functions.

In recent years, with the spread of new building materials and the spread of air-conditioning systems, the number of rooms that are highly airtight has increased. As a result, indoor air becomes extremely polluted and requires ventilation. However, it is difficult to exchange indoor air by unilaterally supplying or exhausting air in a highly sealed room, and simultaneous supply and exhaust ventilation is required.

Conventionally, ventilation fans have been widely used as indoor ventilation devices, but they have the drawback of inhibiting indoor heating and cooling effects. To improve this drawback, air conditioning ventilation fans with reduced heat loss have been proposed, but they tend to be expensive because they have a complicated equipment configuration and require two fans. It is necessary to open a large ventilation hole, which has the disadvantage of increasing construction costs. Further, since such conventional ventilation fans do not have a function of circulating indoor air, they have the drawback of poor room temperature distribution and heat loss due to excessive ventilation. Additionally, air conditioners with added ventilation functions have been devised, but they are simply a combination of a conventional air conditioner and a ventilation fan, or one that has added a unilateral air supply or exhaust function. In order to operate supply/exhaust ventilation and air conditioning at the same time, two or more fans are required, resulting in a complicated and large equipment configuration, which has the disadvantage of being expensive and requiring high maintenance costs.

The present invention eliminates the above-mentioned conventional drawbacks, and
A single blower can be used as a blower for indoor circulation and indoor ventilation, and a ventilation pipe that integrally forms an air supply/exhaust passage circulates indoor air to air-condition the room or change the air-conditioning state of the room. The purpose of the present invention is to provide an air blowing device that performs forced air supply and exhaust ventilation without any need for ventilation. A partition plate forming one fan discharge passage connecting the fan and the fan discharge port, and another fan discharge passage connecting the other fan suction port and the fan discharge port, and an air supply formed in the partition plate. an exhaust passage to the outside that communicates with the one fan discharge passage through a port; an air supply passage for outside air suction that joins downstream of the other fan suction port and then communicates with the other fan discharge passage; One fan performs indoor air circulation from the suction port and fan discharge passage to the fan discharge port and forced exhaust to the exhaust passage, and the other fan circulates indoor air to the fan suction port and fan discharge port and the air supply passage. , and the other fan that supplies air to the other fan discharge passage and the fan discharge port after merging downstream of the other fan suction port.Hereinafter, an embodiment of the present invention will be described with reference to the drawings. do.

The drawing is a side sectional view showing the configuration of an embodiment of the present invention. In FIG. 1, 1 is a box body, and together with an impeller 3 driven by a motor 2 and the box body 1, a fan casing 5 forms a ventilation path and is divided into two by a partition plate 4 located on the outer periphery of the impeller 3. , 5a are built-in. The box 1 is usually attached to the indoor side of a wall 6, and its suction ports 7, 7a are equipped with cleaning filters 8, 8a, and its outlet 9 is equipped with an outlet grill 10. The partition plate 4 is located in the fan discharge passage 11 and is provided with an outdoor air supply port 13 of the exhaust passage 12. Reference numeral 14 denotes a ventilation cylinder, which includes an air supply passage 15 and an exhaust passage 12 concentrically formed in an inner cylinder 16, and is fixed to the back plate 1a of the box body 1. The ventilation pipe 14 located outdoors is provided with an outside air suction port 18 for sucking outside air into the air supply passage 15 and an outdoor discharge port 20 for exhausting outside air from the exhaust passage 12. The impeller 3 has blades fixed to both sides of a main plate 21, and the main plate 21 is directly connected to the shaft of the motor 2. The partition plate 4 that divides the fan casings 5 and 5a has a main plate 21 on the outer periphery of the main plate 21 of the impeller 3.
It is located with a narrow gap between the two.

In such a configuration, when the impeller 3 is driven by the motor 2, an air flow is generated as shown by the solid line arrow in the figure. That is, the indoor air a is supplied to the suction port 7,
The dust is removed and cleaned by a cleaning filter 7a and sucked into the impeller 3. On the other hand, the outdoor air b is supplied from the outside air suction port 18 due to the fan pressure of the fan intake passage 17a, flows from the outside air supply port 19 of the air supply passage 15 in the ventilation tube 14 to the fan intake passage 17a, and flows into the fan intake passage 17a. As a result, the air is mixed with indoor air a from the suction port 7a, blown to the fan discharge passage 11a, and blown into the room from the air outlet 9. On the other hand, a part of the indoor air flowing into the fan discharge passage 11 is transferred to the outdoor air supply port 13 due to the fan pressure in the fan discharge passage 11.
The air flows through the exhaust passage 12 and is exhausted outdoors from the outdoor outlet 20, and the remaining indoor air is blown indoors from the outlet 9 and circulates indoors. The air c blown into the room is a mixture of indoor air, which has been purified by removing dust with the cleaning filter 8, and fresh outdoor air b. Therefore, the influence of the introduction of outdoor air on the indoor heating and cooling condition is that outdoor air b is
While flowing through the air outlet 5, heat is removed from the air in the exhaust passage through the cylinder 16, and the air is mixed with the indoor air a by the impeller 3, so the outdoor air at the outlet 9 is almost in a state of indoor air. There is hardly any. In other words, forced air supply and exhaust ventilation can be performed while circulating the room without changing the indoor air conditioning state. As described above, in the present invention, a partition plate is provided on the outer periphery of the main plate 21 of the impeller 3 to divide the passage inside the fan casing, and two fan suction ports and two fan discharge ports are formed. A set of fans is provided, and the ventilation port of the outdoor air supply port 13 is arranged on the partition plate 4, and one fan is used as a blower for indoor circulation and forced exhaust, and the other fan is used as a blower for forced air supply or for indoor circulation. Consists of a forced air blower, box body 1
The air return port of the partition plate 4 in the fan discharge passage 11 is connected to the outdoor air supply port 1.
3 and an air supply passage in which the outside air outlet 19 is located in the fan intake passage 17a are integrally formed in the ventilation pipe 14, and one impeller 3 is connected to the motor 2.
This is an air blower that performs indoor circulation, forced air supply, and forced exhaust by simply being driven by the air outlet 9.
By installing a cold heat source or a heat exchanger between the air conditioner and the outdoor air inlet of the partition plate 4, an air conditioner that can perform forced supply and exhaust ventilation while cooling and heating the room can be easily realized. Furthermore, the ventilation tube 14 has a ventilation volume of 1 to 1.5 m ² /mm, which is necessary for a room normally occupied.
Since the air supply passage and the exhaust passage are constructed of concentric circles, the load on the fan is small, and a diameter of about 96 mm is sufficient, and the size of the through hole in the wall 6 is about 1/1 of the conventional size.
3, the construction is easy, and when the blower device of the present invention is applied to a separate air conditioner etc. that requires piping work, a part of the ventilation tube 6 can be used for piping, so the ventilation This eliminates the need for construction work and makes it possible to easily create an air conditioner with simultaneous intake and exhaust ventilation by simply adding the partition plate 4 and the ventilation tube 14, without changing the configuration of the current air conditioner. Even when heating a room using an open combustor, fresh air is constantly supplied into the room and the amount of oxygen necessary for combustion is supplied to the combustor, so there is no generation of harmful gases due to lack of oxygen. It achieves clean air that is almost the same as outside air, and the indoor temperature distribution is evened out because the air from the outlet circulates throughout the room.It has the excellent effect of creating a truly comfortable indoor living environment. Suitable for air conditioner blowers in rooms with good airtightness.

As described above, according to the present invention, while circulating the indoor air, part of the dirty air is exhausted outside, and on the other hand, while circulating the indoor air, clean outdoor air is sucked in and circulated on the other hand. Since the air is mixed with the indoor air, it is possible to purify the indoor air while maintaining a constant air-conditioning condition without abruptly changing the indoor air-conditioning condition.

[Brief explanation of the drawing]

The drawing is a side sectional view showing a blower device in an embodiment of the present invention. 1... Box body, 2... Motor, 3... Impeller, 4... Partition plate, 5, 5a... Fan casing, 6... Wall,
7, 7a... Suction port, 8, 8a... Clean filter,
9...Blowout outlet, 10...Blowout grill, 11, 11a...
Fan discharge passage, 12...Exhaust passage, 13...Outdoor air supply port, 14...Ventilation tube, 15...Air supply passage, 16...Inner cylinder, 17, 17a...Fan intake passage, 18...Outside air suction port, 19...Outside air blowing Port, 20...Outdoor discharge port,
21...Main board.

Claims (1)

[Claims] 1 A box body each having two fan suction ports and two fan discharge ports; one fan discharge passage provided within the box body to divide the box body and connect the one fan suction port and the fan discharge port; A partition plate that connects the other fan suction port and the fan discharge port, each forming a second fan discharge passage, and exhaust air to the outside that leads to the one fan discharge passage through an outdoor air supply port formed in this partition plate. an air supply passage for sucking outside air that joins downstream of the passage and the other fan suction port and then leads to the other fan discharge passage; and indoor air circulation from one fan suction port and the fan discharge passage to the fan discharge port. One fan that performs forced exhaust to the exhaust passage, the other fan suction port, indoor air circulation from the fan discharge passage to the fan discharge port, and the air supply passage, which merges downstream of the other fan suction port. from the other fan discharge passage,
A blower device consisting of another fan that supplies air to the fan outlet.