JPS60178238A - Air conditioner and blower for structure of air diaphragm system building - Google Patents

Abstract

PURPOSE:To obtain an always stable air-conditioning state avoiding the nonuniformity of the temperature in a structure, by setting a pressure adjusting blower on an open air supplying duct on the air inlet side of an air conditioner. CONSTITUTION:The air inlet side of the fan 3a of the air conditioner is equipped with an air-conditioning coil 3b. The supplying duct 2 on the air inlet side of the air conditioner 3 is equipped with a pressure adjusting blower 4, and the internal pressure in a diaphragm structure 1 is changed and kept by controlling the rotational frequency of the blower adequately. Open air transmitted from the left end of the open air supplying duct 2 is conducted to the blower 4 through a damper 5 and is air-conditioned by a coil 3B and blows into the diaphragm structure 1 with the fan 3a. The air in the diaphragm structure is conducted to the supplying duct 2 through a return duct 2a and is conducted again to the diaphragm structure 1 and circulates in the structure and ducts. When the air quantity in the diaphragm structure 1 is increased and the internal pressure is reduced, then the rotational frequency of the blower 4 is increased. When the internal pressure exceeds a set value, the rotational frequency of the blower 4 is reduced and the open air supplying quantity is reduced.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an air conditioning/ventilation device in a building.

The feature of the air IQ '1llJ construction is that a blower blows J' air into the membrane structure, keeping the internal pressure always higher than the external pressure, and supporting the membrane groove λ6 body with air.

-The degree of airtightness of Boukimata Ellipse is even higher than that of other buildings, and there is only one membrane material that connects the inside and outside, so it is affected by the outside temperature. Because of this, summers are hot, winters are cold and humid, and air conditioning equipment is indispensable. By the way, in conventional air membrane structure buildings, the air conditioner is installed in one structure, whereas the blower is installed outside this structure and blows outside air directly into the structure, so there is no air inside the membrane structure. There was a problem in that the air temperature was uneven between the vicinity of the outlet and other parts.

The purpose of the present invention is to solve the above problems.

A feature of the present invention is that an air conditioner is provided in an outside air supply duct that is connected to the membrane structure and introduces outside air, and a pressure regulating blower is provided in the outside air supply duct on the suction side of this air conditioner, and the rotation speed of this blower is controlled. One end of the return duct is connected to the membrane structure, and the other end 11tll is connected to the outside air supply duct between the air conditioner and the blower.

Hereinafter, embodiments of the present invention will be described based on the drawings.

In FIG. 1, an outside air supply duct 2 for taking in outside air is connected to the membrane structure 1 at the left end side. This outside air supply duct is equipped with nitrogen vI4 machine 3. This air BI 4 machine has a fan 3a (i7), and a sea bream coil 3b is located on the suction side of this fan.The suction side of the air conditioner 3 (left Ill)
A pressure regulating blower 4 is provided in the supply duct 2, and the internal pressure of the membrane structure 1 is changed and maintained by appropriately controlling the rotational speed of this blower. The outside air supply duct 2 on the suction side of the blower 4 is provided with a wind M adjustment damper 5 which is a motor damper.

Further, the right end of the return duct 2a is connected to the membrane structure 1, and the H end is connected to the supply duct 2 between the air conditioner 3 and the blower 4.

First, an exhaust duct 2b is connected to the membrane structure weight, and this duct VC is provided with an exhaust damper 5a.

Next, I will explain the action.

The outside air entering from the left sole 1i side of the outside air supply duct 2 passes through the damper 5 and reaches the blower 4, where it is pressurized and air-conditioned by the air coil 3b of the air conditioner 3, and the fan 3a blows the membrane structure 1. It is blown out from the air outlet. The air inside this membrane structure passes through the return duct 2a, reaches the supply duct 2, enters the membrane structure l again, and thereafter circulates Mi between the structure and the duct.

Here, the internal pressure setting will be explained based on FIG. 2 showing the pressure distribution.

When the rotational speed of the blower 4 is adjusted to set the internal pressure to 25 Aq of water column, the pressure line A shown by the dotted line follows the following trajectory. In other words, as the outside air enters the supply duct 2, the pressure gradually decreases and passes through the blower 4, at point A.
Climb up to point B.

It continues to gradually descend until it reaches the air conditioner 3, and then it goes down one step further until it passes through the coil 3b, and the air passes through the fan 3a. The pressure rises from point C to D, and when it is released from the air outlet of the membrane structure 1, it reaches point E, which shows 25 Aq, and when it enters the return duct 2a from here, the pressure decreases, and the pressure is reduced to the supply duct 2. The pressure line enters the F air conditioner 3, further decreases, and then enters the F air conditioner 3 and is blown out to the membrane structure 1, which is similar to the above trajectory.

When the internal pressure is set to 85++mAqK of water column, the pressure outlet shown by the solid line is 4L up to point A, which is the same as the pressure line A.
Following the trace, it rises to the work point Ba due to the operation of the blower 4, and as the air conditioner passes through the fan 73a, it rises to the point Ca and also to the point Da, and the air blows from the air outlet of the membrane structure l. , 8
5 tmA It reaches the point Ea shown in q, and the pressure decreases by entering the return duct 2a from inside the structure, and the locus of the pressure line in the process from the supply duct 2 to the air outlet is the same as the seven strokes in the process of L. It is.

Explain how to maintain internal pressure without moving.

When the air leakage increases due to opening and closing of the door in the membrane structure 1 and the internal pressure becomes low, the rotational speed of the blower 4 is increased. In addition, when the internal pressure rises above the set value, the rotation speed of the blower 4 is reduced and fresh air is supplied.
Of course, in this case, the rotation speed corresponding to the required amount of outside air is maintained. Furthermore, if the internal pressure rises even when the rotational speed is at its minimum, the exhaust damper 5a (() is opened to ensure safety, but if the internal pressure still rises even after opening, the blower 4 is stopped.

When the blower is stopped, the damper 5 is fully closed.

As explained above, according to the present invention, since there is no person directly in the membrane structure, the temperature inside the structure does not fluctuate.
A package type air conditioner can be used as the air conditioner, which can always provide stable air conditioning conditions.
In this case, the equipment can be made more compact.

[Brief explanation of the drawing]

FIG. 1 is an explanatory diagram showing one embodiment of the present device, and FIG. 2 is a pressure distribution diagram. 1... Membrane structure, 2... Outside air supply duct, 2a...
・Return duct, 3...Air conditioner, 4...Pressure adjustment blower. Patent applicant: Shimizu Corporation

Claims (1)

[Claims] The air supply duct connected to the membrane structure at one end is connected to the air conditioner, and this air is connected to the outside air suction side of the air supply duct, where the internal pressure is all! A wind regulating and blowing rock is provided respectively, and 412 is attached to the above membrane structure on one end side.
An air membrane structure building characterized in that, in addition to the return duct, the air membrane structure is connected to the outside air supply duct between the air conditioner and the blower. ? A
- The device is difficult to send.