JPH07174394A - Air volume control apparatus with wind direction control device - Google Patents

Abstract

PURPOSE:To reduce power load by controlling air volume by a temperature signal from a temperature senser, comparing a present location of a body having a sensible temperature with a previous location thereof and controlling wind direction according to a direction signal from a detecting senser when the difference of the locations exceeds a preset value. CONSTITUTION:An air volume controlling apparatus 3 controls air volume by means of a temperature signal from a temperature detector. A comparing function 22 compares a present location of a body having a sensible temperature with a previous location thereof. When the difference exceeds a preset value, an indoor detector 2 detects it as a movement direction. Wind direction is controlled by a VAV motor 4 by means of a movement direction signal from the indoor detector 2. The air volume and wind direction are simultaneously controlled by transmitting the signals of the temperature senser and indoor detector 2 to a digital controller. Then, the volume of air consumption by the VAV is reduced and the supply pressure of an air conditioner rises. Because the pressure is controlled in such a manner as to keep constant, the revolution speed of a fan can be decreased.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an air volume control device with a wind direction control for controlling the air volume and direction of a VAV unit.

[0002]

2. Description of the Related Art In the prior art, a VAV (variable air volume) is controlled by a temperature detector installed in a room.

[0003]

The conventional VAV can control the air volume, but cannot control the wind direction. In that case, the wind may be blown in the direction where there are no people, which is a waste of energy.

An object of the present invention is to provide an air volume control device with a wind direction control capable of saving energy by narrowing the air volume in the direction in which no person is present by using a room detector for the air direction.

[0005]

SUMMARY OF THE INVENTION An air volume control device with air flow direction control according to the present invention includes a temperature sensor for detecting an indoor temperature, an air volume control device for controlling an air volume by a temperature signal from the temperature sensor, and an existing position of a temperature body. The memory function to detect and store the temperature, the comparison function to compare the old existing position of the temperature body stored by the memory function with the newly detected new existing position, and the comparison value compared by the comparison function is the preset value And a wind direction control device for controlling the wind direction according to a direction signal from the detection sensor.

[0006]

In the air volume control device with wind direction control according to the present invention, the indoor temperature is detected by the temperature sensor, the air volume is controlled by the temperature signal from the temperature sensor, and the existing position of the temperature body is detected and stored. Compare the old existing position of the temperature body and the newly detected new existing position stored in, and if the comparison value compared by the comparison function exceeds the preset set value, it is detected as the moving direction, and it is detected from the detection sensor. The wind direction is controlled by the direction signal.

[0007]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, an embodiment of the air volume control device with wind direction control according to the present invention will be described. Reference numeral 1 is a temperature detector for detecting an indoor temperature, 3 is an air volume control device for controlling an air volume by a temperature signal from the temperature detector, 21 is a storage function for detecting and storing the presence position of a temperature body, and 22 is a storage function 21 The comparison function 2 for comparing the old existing position of the temperature body and the newly detected new existing position stored in 2 detects the moving direction when the comparison value compared by the comparison function 22 exceeds a predetermined set value. Detection in-room detectors 4 are VAV motors that control the wind direction by the direction signals from the in-room detectors, and are sensors for detecting indoor temperature, sensors for detecting presence / absence, and signals from each sensor. VA by the digital controller that receives the control calculation and the signal from the digital controller
This is a VAV unit with wind direction control that consists of a motor that drives the damper of the V unit, and solves the problem by simultaneously controlling the air volume and the wind direction by sending the signal from the room temperature sensor and the in-room detector to the digital controller. To do. The occupancy detector attached to the VAV unit detects presence / absence in four directions around the room, and sends the presence / absence to the built-in digital controller to reduce the air volume in the direction determined to be absent.
Since the throttled air volume is directed to the space determined to be present, the temperature sensor consequently determines that it is supercooled (or overheated), and throttles the air volume in all directions. (However, the wind direction does not change.) As a result, the rotation speed of the air conditioner at the source of VAV can be reduced and energy can be saved.

That is, a temperature detector 1 for detecting the indoor temperature, an in-room detector 2 for detecting the presence / absence, and a digital controller 3 for controlling the air volume according to the indoor temperature and the presence / absence signal.
And the VAV motor 4 that drives the VAV damper, and the presence detector 2 detects presence / absence in four directions. This signal is sent to the digital controller 3 to rotate the VAV motor 4 in order to close the damper in the direction judged to be absent. As a result, the downward air volume increases (the total air volume remains unchanged), so the value of the temperature detector 1 becomes lower than the set value (in the case of cooling, it becomes higher in the case of heating). This signal is transmitted to the digital adjuster 3 and acts to reduce the total air volume of VAV.

As a result, the amount of air consumed in VAV is reduced and the supply pressure of the air conditioner is increased, so that the constant pressure control is performed, so that the rotation speed of the fan can be reduced.
In addition, H of FIG. 3 shows a detection direction.

[0010]

The conventional VAV does not control the wind direction and therefore consumes unnecessary energy. However, by applying the present invention, the power load can be eliminated. Further, the original function (individual air conditioning) of the VAV unit can be further promoted.

[Brief description of drawings]

FIG. 1 is a configuration diagram of a wind direction control VAV unit showing an embodiment of the present invention.

FIG. 2 is a plan view of the room seen from above.

FIG. 3 is a plan view seen from below.

[Explanation of symbols]

 1 Temperature Detector 2 In-Room Detector 3 Digital Controller 4 VAV Motor 5 Pressure Detector 6 Pressure Regulator 7 Inverter

Claims (1)

[Claims] 1. A temperature sensor for detecting an indoor temperature, an air volume control device for controlling an air volume by a temperature signal from the temperature sensor, a storage function for detecting and storing a position where a temperature body exists, and a storage function for the storage function. A comparison function for comparing the stored old existing position of the temperature body with a newly detected new existing position, and detection for detecting the moving direction when the comparison value compared by this comparison function exceeds a preset set value An air flow control device with a wind direction control, comprising: a sensor; and a wind direction control device that controls the wind direction by a direction signal from the detection sensor.