JPH1151456A - Outlet device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To conduct flow regulation individually at an outlet, to cope with a difference in a load according to a place of installation, to conduct also automatic regulation of a distance of travel of an airflow in conformity with a flow rate, together with the flow regulation, and thereby to perform effective air conditioning. SOLUTION: Regulation of a flow rate is enabled at each outlet in conformity with a difference in a load according to a place of installation in the same space by conducting a flow control at the outlet 1, and thereby air conditioning can be performed efficiently. By rotating a deflector, besides, an airflow is diffused uniformly in the space and a distance of travel of the airflow can be varied automatically in conformity with the flow rate of conditioned air. Thereby an air conditioning capacity can be varied surely, a property of following regulation of temperature is made excellent and the temperature in the space can be controlled quickly and properly. Moreover, a deflecting part 8 is rotated by using an impeller and also regulation of the speed of rotation of the deflecting part 8 in conformity with the flow rate is conducted mechanically. This structure is simple and hardly breaks down and it is excellent in durability and, besides, dispenses with a power source and a control device being expensive, thus enabling reduction of the cost.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method of controlling a temperature in a space, which is arranged on a ceiling or a wall in a space to be air-conditioned, by adjusting a flow rate and a reaching distance of air-conditioning air blown into the space. The present invention relates to an outlet device that can be appropriately performed.

[0002]

2. Description of the Related Art In an air conditioner, as an air outlet device for blowing air for air conditioning sent through a duct into a room, a multilayer cone type which emphasizes a diffusion range of conditioned air and a pan which emphasizes a reach distance are used. A type such as a mold is conventionally and generally used. In addition to the outlet device in which the airflow is guided in a predetermined direction and blown out, such as a multilayer cone type or a pan type, a deflecting unit is provided in the outlet main body to guide the airflow obliquely downward. There is an outlet device that changes the direction of the blown air flow by rotating the deflecting unit by a driving unit, and this is shown in FIG. FIG. 3 is a schematic diagram illustrating the configuration of a conventional outlet device.

[0003] Referring to FIG.
Is disposed on the ceiling 50, is connected to the duct 51, is supplied with conditioned air, and has an outlet body 101 having an opening 101a for blowing out the conditioned air into the indoor space; and an opening 101a of the outlet body 101. A rotating shaft 102 rotatably disposed inside, a driving unit 103 for rotating the rotating shaft 102, a deflecting plate 104 attached to the tip of the rotating shaft 102 and guiding the airflow obliquely downward from the ceiling 50; And a punching plate 105 mounted on the opening 101a of the outlet main body 101.

In the conventional outlet device 100 having the above-described configuration, the deflecting plate 104 is rotated at a constant speed by the driving unit 103, and the airflow is blown into the room while constantly changing the direction of the airflow. This outlet device 100
Thus, since the airflow can be blown in any direction by rotating the deflection plate 104, the airflow can be diffused into the room to obtain a large reaching range regardless of the cooling and heating, and the cooling and heating effect is large.

On the other hand, when the flow rate of conditioned air is controlled for temperature control for one or a plurality of outlet devices 100 arranged in the room to be air-conditioned as described above,
Conventionally, as shown in FIG. 4, a variable air volume device (VAV) 200 is provided and used in a duct path. The VAV 200 has a damper 2 disposed in a duct 51.
01, a flow rate sensor 202 disposed in the center of the duct 51 on the downstream side thereof, and a damper 201 opened to obtain a set temperature in the room while monitoring the flow rate of conditioned air calculated from the flow rate obtained by the flow rate sensor 202. And a damper drive unit 203 that adjusts the flow rate of the conditioned air by adjusting the degree.

However, if the conditioned air is distributed from the duct 51 to the plurality of outlet devices and supplied, the respective outlet devices 100
In many cases, the flow rate becomes non-uniform.
When the flow rate control is performed on the plurality of outlet devices 100 by using the air outlet 00, a constant air volume device (CAV) 300 is disposed between each outlet 100 and the duct 51, and each outlet device 100 It was common to make the distribution amount to the uniform. The CAV 300 is a substantially cylindrical outer cylinder having a slit formed in the peripheral side surface, and a cylindrical body having a slit formed in the peripheral side surface like the outer cylinder, and is slidably disposed in the outer cylinder. And an inner cylinder positioned by a spring.

In the CAV 300, the slit position of the inner cylinder and the outer cylinder overlaps and the cross-sectional area of the slit is maximized, so that the inner cylinder is pressed against the repulsive force of the spring by the pressure of the airflow flowing through the duct. Moving. The larger the flow rate and the higher the pressure, the more the inner cylinder moves to the downstream side to reduce the area where the slit overlaps with the outer cylinder, reduce the flow path cross-sectional area, and suppress the flow rate. In this way, each slit flow path cross-sectional area is automatically adjusted upstream of each outlet,
This is a mechanism in which the flow rates distributed to the plurality of outlet devices 100 are always equal.

[0008]

Since the conventional outlet device is constructed as described above, the diffusing ability is larger than that of the multilayer cone type or pan type, but the rotation speed of the deflecting plate 104 is constant. For this reason, the reaching distance of the airflow has a property that is almost determined by the speed of the airflow. Although the flow rate of the conditioned air was changed in order to obtain a desired temperature for cooling and heating in the indoor space, the magnitude of the flow rate did not always match the magnitude of the airflow velocity, that is, the magnitude of the reach distance. For this reason, the cooling and heating capacity does not change so much, the temperature change becomes slow, and there is a problem that it takes time to obtain a desired temperature and it is difficult to obtain comfort.

[0009] Regardless of the cooling or heating, the attachment of the deflecting plate 104 to the rotating shaft 102 is fixed and the blowout angle is a constant oblique airflow. There is a problem that the horizontal or vertical reach of the airflow is considerably reduced.

[0010] In addition, a driving unit 10 using a motor or the like is used.
Since the deflecting plate 104 is rotated in Step 3, the structure is complicated and the cost is high. When adjusting the rotation speed of the deflecting plate 104 in order to change the reach, it is necessary to further add a rotation control function.
There was a problem of inviting higher costs.

On the other hand, when the flow rate is adjusted using the VAV 200 for a plurality of outlet devices 100 facing the same room, the outlet flow rate in each outlet device 100 can be changed at one time. Even if the load differs for each installation location of the device 100, each outlet device 1
There was a problem that the flow rate could not be changed every 00 and efficient cooling and heating could not be performed according to the condition of the indoor space. Also, the CAV 300 was not able to adjust the flow rate only by uniformly adjusting the flow rate of the blow-off at the plurality of outlet devices 100 downstream of the VAV 200. For this reason, there has been a method of arranging a VAV for each outlet device, but it has a problem that the cost is high and it is generally difficult to use.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems, and the flow rate can be adjusted by the outlet alone, and the load can be varied depending on the installation location. It is an object of the present invention to provide an air outlet device capable of performing adjustment automatically and performing effective air conditioning.

[0013]

An outlet device according to the present invention is connected to an air conditioning duct, supplied with an air conditioning gas, and blows the gas into a space to be air conditioned. An outlet main body having a circular shutter arranged at the most upstream portion of the outlet main body, adjusting the flow rate of the gas passing therethrough by changing the diameter of the opening concentrically, and opening the circular shutter by operating the circular shutter A shutter driving unit that controls the flow rate by changing the flow rate, an impeller that is rotatably disposed at a position downstream of the circular shutter, and that rotates by the wind pressure of gas, and an impeller that is interlocked with the impeller inside the opening of the outlet body. And a deflecting unit that is rotatably disposed at the tip of the rotating shaft so as to be adjustable in angle and guides airflow in one or a plurality of directions. As described above, in the present invention, by controlling the flow rate at the outlet, the flow rate can be adjusted for each outlet according to the difference in load depending on the installation location in the same space, and air conditioning can be performed efficiently. Further, the deflecting unit rotates by driving by the impeller while guiding the airflow, and the blowing direction of the gas to the space to be air-conditioned is rotated around the rotation axis to diffuse the airflow evenly in the space, And by being able to automatically change the reach of the airflow according to the flow rate of the conditioned air, it is possible to reliably change the air-conditioning ability, excellent follow-up to temperature control, and quickly and appropriately adjust the temperature of the space. Can control. Furthermore, by rotating the deflecting unit using an impeller and mechanically adjusting the rotation speed of the deflecting unit according to the flow rate, it has a simple structure, is hardly broken down, has excellent durability, and is expensive. This eliminates the need for a power source and a control device, thereby reducing costs. And, by adjusting the mounting angle of the deflecting unit in accordance with the temperature of the conditioned air to change the airflow blowout angle, the blown airflow can be diffused to the space most effectively, reducing waste and improving efficiency. Enhanced.

The outlet device according to the present invention is provided, if necessary, with a flow rate sensor disposed downstream of the center position of the opening of the circular shutter to measure the flow rate of gas passing through the opening of the circular shutter. , The shutter drive unit,
The flow rate is derived from the flow rate obtained by the flow rate sensor, the circular shutter is operated while referring to the flow rate, and the flow rate is controlled. Thus, in the present invention,
By being able to accurately grasp the flow rate of gas passing through the circular shutter using a flow rate sensor, it is less susceptible to changes in the operating conditions of upstream air conditioning equipment, and always controls the flow rate appropriately in accordance with the conditions of the target space for air conditioning Becomes possible.

The outlet device according to the present invention is provided with one end supported by the rotation shaft and the other end supported by the deflecting portion, as required, in accordance with the temperature of the conditioned air. A temperature sensor that changes the mounting angle of the deflecting unit with respect to the rotation axis, adjusts the direction of air flow by moving the deflecting unit with respect to the rotation axis with the temperature sensor, and adjusts the direction of airflow by the temperature of the air conditioning gas. This is to change the blowing pattern into the space. Thus, in the present invention, by automatically changing the mounting angle of the deflection unit according to the temperature of the conditioned air,
The labor of adjusting the angle according to the conditioned air temperature of the deflecting unit is not required, and labor can be saved.

[0016]

BEST MODE FOR CARRYING OUT THE INVENTION

(Embodiment of the Invention) Hereinafter, an outlet device according to an embodiment of the present invention will be described with reference to FIGS. FIG. 1 is a schematic configuration diagram of the outlet device according to the present embodiment, and FIG. 2 is a schematic configuration diagram of main parts of the outlet device according to the present embodiment.

In each of the drawings, the outlet device 1 according to the present embodiment is provided on a ceiling 50, connected to a duct 51, supplied with conditioned air, and blows out the conditioned air into the indoor space. A ring shutter 3 disposed at the most upstream portion of the outlet main body 2 to adjust the flow rate of conditioned air passing therethrough by changing the diameter of the opening concentrically; A known flow rate sensor 4 that is disposed downstream of the center position of the opening and measures the flow rate of the conditioned air passing through the ring shutter 3, and derives a flow rate from the flow rate obtained by the flow rate sensor 4, and refers to the flow rate A shutter driving unit 5 that drives the ring shutter 3 to change the opening diameter to control the flow rate, and a professional unit rotatably disposed downstream of the flow rate sensor 4 and rotated by the wind pressure of the conditioned air. A rotary impeller 6, a rotary shaft 7 disposed inside the opening 2 a of the outlet main body 2 so as to be rotatable in conjunction with the propeller impeller 6, and an angle adjustable at the tip of the rotary shaft 7. A deflecting unit 8 that is attached and guides the airflow obliquely downward from the ceiling 50 in two directions is provided.

The outlet main body 2 is formed in a substantially cylindrical body that houses the ring shutter 3, the flow velocity sensor 4, and the propeller impeller 6, and is connected to a duct 51.
The punching metal 2c is provided along the surface of the ceiling 50 in the rectangular opening 2a facing the indoor side while having b. The flow velocity sensor 4 disposed in the connection cylinder portion 2b has a flow velocity detecting portion located at the center of the cylinder so as to be hardly affected by a drift or the like.

The ring shutter 3 moves a number of shutter blades 3a arranged in a ring, and concentrically changes the size of an opening formed in the center to adjust the flow rate of conditioned air passing therethrough. The shutter is arranged such that the center thereof coincides with the center of the cylinder of the connection cylinder portion 2b. Since the opening is always located at the center of the flow path, the static pressure loss is small, the generated noise can be reduced, and the drift is reduced. It is hard to get up.

The propeller impeller 6 is a propeller-shaped impeller 6 capable of efficiently converting the kinetic energy of airflow into rotational force.
a, and is arranged rotatably so that the center of rotation coincides with the center of the cylinder of the connection cylinder 2b. The rotating shaft 7 is disposed rotatably on the outlet main body 2 with the axial direction perpendicular to the ceiling 50, and transmits the rotating force of the propeller impeller 6 to the deflecting unit 8 after decelerating at a reduction unit 7a. It is a configuration to do.

The deflecting section 8 is formed of a rectangular plate,
A deflecting main plate 8a partially formed with an opening hole 8b, a mounting portion 8c which is disposed so as to protrude substantially vertically from the center of the deflecting main plate 8a, and is attached to the rotating shaft 7 so as to be adjustable in angle;
Side plate 8 disposed upright on the side of deflection main plate 8a
d and a deflecting sub-plate 8e which is arranged to be inclined obliquely below the deflecting main plate 8a from the end of the deflecting main plate 8a on the side where the opening 8b is formed. This deflection unit 8
The deflecting main plate 8a and the deflecting sub-plate 8e are arranged obliquely at a predetermined angle with respect to the rotation shaft 7, and the airflow flowing inside the outlet main body 2 is guided by the deflecting main plate 8a to be guided in the direction of inclination of the deflecting main plate 8a. At the same time, a part of the airflow that has passed through the opening hole 8b of the main deflection plate 8a is guided to the deflection sub-plate 8e so that the deflection sub-plate 8e
And blows the airflow obliquely downward at a predetermined angle. The angle at which the deflecting unit 8 is attached to the rotating shaft 7 is set to an angle at which the reaching distance can be maximized in consideration of the diffusivity depending on the temperature of the conditioned air. In the case of heating, the airflow is appropriately adjusted in advance so that the direction is close to horizontal, and in the case of heating, the inclination is steep and the direction of the blown airflow is close to vertical.

Next, the blowing operation of the outlet device 1 based on the above configuration will be described. When the conditioned air is supplied from the duct 51 to the connection cylinder 2b, the flow velocity of the conditioned air passing through the ring shutter 3 is obtained by the flow velocity sensor 4. The flow rate is calculated by the shutter driving unit 5 based on the flow velocity, and is constantly compared with an appropriate flow rate given based on a control command by the indoor air conditioning temperature adjustment operation. The adjustment of the opening degree, that is, the flow rate control, is performed. The airflow of the conditioned air whose flow rate has been controlled by the ring shutter 3 rotates the propeller impeller 6 and then exits the connecting cylinder 2b and reaches the deflecting unit 8 in the opening 2a. The rotational force obtained by the propeller impeller 6 is
After being decelerated, it is transmitted to the rotating shaft 7 to rotate the deflecting unit 8. The air flow is guided by the rotating deflecting portion 8 and spreads obliquely downward at a certain angle from the opening 2a through the punching metal 2c to change the direction of the air flow to the rotating shaft 7.
It is blown into the room while rotating around the center.

Here, in the case of insufficient cooling or heating such as insufficient cooling or warming of the indoor space, a control command to increase the flow rate of conditioned air is issued to the shutter drive unit 5 by adjusting the temperature in the room. The opening degree of the ring shutter 3 is increased by driving the shutter driving unit 5 and the flow rate is increased. At the same time, the speed of the airflow passing through the opening of the ring shutter 3 is reduced, and the rotation of the propeller impeller 6 is reduced. Since the rotation of the deflecting unit 8 interlocked with the propeller impeller 6 is also slow, the rotation of the airflow guided by the deflecting unit 8 in the blowing direction is slow, and the period in which the airflow is directed in a certain blowing direction becomes longer. Of airflow increases, the momentum of the airflow increases, and the reach of the airflow in that direction increases. By increasing the flow rate and increasing the reach distance in this way, the effect of cooling and heating by conditioned air is strengthened, and the indoor temperature is quickly lowered or raised, and the indoor state is changed to an appropriate state after temperature adjustment. Can be.

Conversely, if the room is excessively cooled or heated, for example, if the temperature in the room is too cold or too hot, a control command is issued to the shutter drive unit 5 to regulate the flow rate of conditioned air by adjusting the temperature in the room. When the opening degree of the ring shutter 3 is reduced by driving the shutter driving unit 5, the flow rate decreases, and at the same time, the speed of the airflow passing through the opening of the ring shutter 3 increases, and the rotation of the downstream propeller impeller 6 increases. Since the rotation of the deflecting unit 8 interlocked with the propeller impeller 6 is also faster, the rotation of the airflow guided by the deflecting unit 8 in the blowing direction is faster, and the period in which a certain blowing direction is directed becomes shorter.
The blow of the airflow in that direction is small, the momentum of the airflow is reduced, and the reach of the airflow in that direction is reduced. By suppressing the flow rate and shortening the reach in this way, the effects of cooling and heating by conditioned air are weakened, excessive cooling and heating conditions are quickly alleviated and eliminated, and the indoor conditions are quickly brought to the proper state after temperature adjustment. Can be changed. On the other hand, as the rotation in the blowing direction is faster, the ability to diffuse the conditioned air evenly into the room is increased on the contrary, and the room can be maintained at a uniform appropriate temperature without excessively reducing the cooling / heating capacity.

As described above, in the air outlet device according to the present embodiment, since the air flow outlet is provided with the flow rate adjusting portion, the flow rate can be adjusted for each air outlet according to the difference in load depending on the installation location, and the efficiency can be improved. Air conditioning can be performed well, the airflow can be diffused throughout the room by rotating the deflection plate, and the reach of the airflow can be changed according to the flow rate of the conditioned air, so that the cooling and heating capacity can be reliably changed, It has excellent follow-up to temperature control and can control room temperature quickly and appropriately. Furthermore, by adjusting the mounting angle of the deflecting plate according to the temperature of the conditioned air, the blown airflow can be diffused most effectively into the room, and waste can be reduced and effective air conditioning can be performed in a short time. .

In the outlet device according to the embodiment, the mounting angle of the deflecting portion 8 with respect to the rotating shaft 7 is manually adjusted, but one end is supported by the rotating shaft. It is also possible to provide a temperature sensor that is provided with its end supported by the deflecting unit, expands and contracts according to the temperature of the conditioned air, and changes the mounting angle of the deflecting unit with respect to the rotation axis. By automatically changing the angle of the deflecting unit to an appropriate angle according to the temperature of the airflow, the trouble of adjusting the angle due to the temperature change of the conditioned air becomes unnecessary, and the airflow diffusion capacity is always maximized. Thus, air conditioning can be performed efficiently.

In the outlet device according to the above-described embodiment, the deflecting portion 8 is configured by combining plate-like members. In addition, the deflecting portion 8 guides the air flow from the ceiling 50 to a predetermined angle obliquely downward. As long as it is an appropriate shape that can be blown out, a configuration using a cylindrical body, a guide blade, a conical body in which a part of a side wall is notched, or the like may be used.

[0028]

As described above, in the present invention, by controlling the flow rate at the air outlet, the flow rate can be adjusted for each air outlet according to the difference in the load depending on the installation location in the same air-conditioning target space. Thus, an effect that air conditioning can be performed efficiently can be achieved. Further, the deflecting unit rotates by driving by the impeller while guiding the airflow, and the blowing direction of the gas to the space to be air-conditioned is rotated around the rotation axis to diffuse the airflow evenly in the space, And by being able to automatically change the reach of the airflow according to the flow rate of the conditioned air, it is possible to reliably change the air-conditioning ability, excellent follow-up to temperature control, and quickly and appropriately adjust the temperature of the space. It has the effect of being controllable. Furthermore, by rotating the deflecting unit using an impeller and mechanically adjusting the rotation speed of the deflecting unit according to the flow rate, it has a simple structure, is hardly broken down, has excellent durability, and is expensive. This has the effect of reducing costs by eliminating the need for a power source and a control device. And, by adjusting the mounting angle of the deflecting unit in accordance with the temperature of the conditioned air to change the airflow blowout angle, the blown airflow can be diffused to the space most effectively, reducing waste and improving efficiency. It has the effect of being enhanced. In the present invention, the flow rate of the gas passing through the circular shutter can be accurately grasped by using the flow rate sensor. Thus, the flow rate can be appropriately controlled in accordance with the condition. Further, in the present invention, by automatically changing the mounting angle of the deflecting unit according to the temperature of the conditioned air, there is no need to perform the angle adjustment according to the temperature of the deflecting unit, and thus it is possible to save power.

[Brief description of the drawings]

FIG. 1A is a schematic cross-sectional view of a configuration of an air outlet device according to an embodiment of the present invention. (B) is a bottom view of the outlet device according to the embodiment of the present invention.

FIG. 2 is a schematic configuration diagram of a deflection unit of the outlet device according to the embodiment of the present invention.

FIG. 3A is a schematic sectional view of a conventional outlet device. (B) is a bottom view of the conventional outlet device.

FIG. 4 is a diagram illustrating a configuration of a conventional outlet device.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1, 100 Blow-out apparatus 2, 101 Blow-out main body 2a, 101a Opening 2b Connection cylinder part 2c Punching metal 3 Ring shutter 3a Shutter blade 4, 202 Flow rate sensor 5 Shutter drive part 6 Propeller impeller 6a Blade 7 Rotating shaft 7a Reduction part 8 Deflection part 8a Deflection main plate 8b Opening hole 8c Attachment part 8d Side plate 8e Deflection sub-plate 50 Ceiling 51 Duct 102 Rotating shaft 103 Drive unit 104 Deflection plate 105 Punching plate 200 VAV 201 Damper 203 Damper drive unit 300 CAV

Claims (3)

[Claims] 1. An air outlet body connected to an air conditioning duct, supplied with air conditioning gas, and having an opening for blowing the gas into a space to be air conditioned, and an upstream of the air outlet body. A circular shutter that is disposed in the section and that adjusts the flow rate of gas passing therethrough by changing the diameter concentrically of the opening; a shutter driving section that operates the circular shutter to change the opening diameter and controls the flow rate; An impeller that is rotatably disposed at a position downstream of the shutter and that is rotated by wind pressure of gas, and a rotation shaft that is rotatably disposed inside the opening of the outlet main body in conjunction with the impeller. And a deflecting unit which is attached to the tip of the rotating shaft so as to be adjustable in angle and guides airflow in one or a plurality of directions. 2. The blow-off device according to claim 1, further comprising a flow rate sensor disposed downstream of a center position of the opening of the circular shutter and measuring a flow rate of gas passing through the opening of the circular shutter. The outlet device, wherein the shutter driving unit derives a flow rate from the flow rate obtained by the flow rate sensor, operates the circular shutter while referring to the flow rate, and controls the flow rate. 3. The outlet device according to claim 1, wherein one end is supported by the rotation shaft, and the other end is supported by the deflecting portion, and the temperature of the conditioned air is reduced. Expand and contract according to
A temperature sensor for changing a mounting angle of the deflecting unit with respect to the rotation axis; adjusting the direction of airflow by moving the deflection unit with respect to the rotation axis with the temperature sensor; An outlet device characterized by changing an outlet pattern.