JPH04281138A - air conditioning ventilation system - Google Patents

Abstract

PURPOSE:To easily respond to demand for processed air volume over a wide range from a small air volume to a large one. CONSTITUTION:A function unit 6 is completed as an air conditioner and ventilator by being provided with an air feed passage 1, an exhaust passage 2, an air feed fan 3, and an exhaust fan 4 and a heat exchanging element 5. A plurality of these function units 6 (one, two, three,... n) are piled in the vertical direction, so that processed air volume can be varied from that corresponding to one unit to that corresponding to all of the units by a control of the number of the units to be operated.

Description

[Detailed description of the invention]

0001

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an air conditioning ventilation system that performs air supply and exhaust through a built-in heat exchange element.

0002

[Prior Art] This type of air conditioning ventilation system is also called a heat exchange ventilation system, and is characterized by being able to supply outside air into the room in a state close to that of the room. The configuration is as shown in . That is, each working fluid passage of the heat exchange element having two independent working fluid passages constitutes a part of an air supply air passage that introduces outside air and a part of an exhaust air passage that exhausts indoor air. A blower for forming a supply air flow is provided in the supply air path, and a blower for forming an exhaust flow is provided in the exhaust air path. In particular, in the device according to the above-mentioned publication, the heat exchange element, the air filter, and each blower are each packaged into one package, and the combination thereof is configured to perform an air conditioning and ventilation function.

[0003] The conventional air conditioning ventilation system having the above configuration can supply outside air into a room through a heat exchange element and exhaust indoor air to the outside through a heat exchange element, and can greatly fluctuate state variables such as indoor temperature. Ventilation can be performed by supplying and exhausting air without having to do so. In particular, in the device shown in the above publication, the main functional components are packaged and configured by combining them, so the air supply and exhaust ports are no longer fixed and can be adjusted depending on the characteristics of the installation location. A good air supply/exhaust port position can be obtained by combining them.

0004

[Problems to be Solved by the Invention] In the conventional air conditioning ventilation system configured as described above, the ventilation capacity is fixed and the air volume is controlled by a separate control device such as an inverter or phase control. The problem is that the range is limited to the capacity of the blower, and it is not possible to meet a wide range of requests from small to large air volumes.

[0005] The present invention was made to solve the conventional problems, and aims to provide an air conditioning ventilation system that can easily meet a wide range of requirements ranging from small to large air volumes. It is.

[0006]

[Means for Solving the Problems] An air conditioning ventilation system according to the present invention includes a functional unit that is a complete air conditioning and ventilation system, and includes a supply air path, an exhaust air path, a supply air blower, an exhaust air blower, and a heat exchange element. By stacking n units vertically and controlling the number of units in operation from 1 to n units, the ventilation capacity can be increased to 1.
It is designed to be variable from one car to n cars.

[0007] Another air conditioning ventilation system according to the present invention includes:
In particular, the air supply outlet and the exhaust suction port of the functional unit are provided with electric dampers that open and close in conjunction with the shutdown of the functional unit.

[0008]

[Operation] In the air conditioning ventilation system of the present invention, by controlling the number of operational units of a plurality of functional units stacked vertically and each having a complete configuration as an air conditioning ventilation system, a wide range of air volume can be achieved, from one unit to the number of stacked units. Control becomes possible.

[0009] Furthermore, in another air conditioning ventilation system according to the present invention, control of the number of operating units of a plurality of functional units is particularly facilitated by the electric damper, and the entire system smoothly responds to air volume control.

0010

DESCRIPTION OF THE PREFERRED EMBODIMENTS FIGS. 1 and 2 both show an embodiment of the present invention, with FIG. 1 being a plan view of an air conditioning and ventilation system, and FIG. 2 being a front view thereof. To put it simply, the air conditioning ventilation system shown in each of these figures includes a supply air path 1, an exhaust air path 2, and a supply air blower 3.
, functional units 6 having a complete configuration as an air conditioning ventilation system equipped with an exhaust blower 4 and a heat exchange element 5 are stacked vertically in n units (4 units in the example shown), and function in the range from 1 to n units. This configuration allows the number of operating units 6 to be controlled. Each functional unit 6 has the same configuration,
Each air supply air passage 1 is an air passage for supplying outdoor air into the room, and a part thereof is constituted by one working fluid passage of the heat exchange element 5, and the air supply air suction port 7 is the inlet end thereof. A supply air flow directed from the supply air outlet 8 to the supply air outlet 8, which is the outlet end, is formed by the supply air blower 3 incorporated in the air path. Further, each exhaust air passage 2 is an air passage for exhausting indoor air to the outdoors, and a part thereof is constituted by the other working fluid passage of the heat exchange element 5, and the exhaust air suction port 9 is the inlet end thereof. An exhaust flow from the exhaust air blower 4 toward the exhaust outlet 10, which is the outlet end, is formed by the exhaust blower 4 incorporated in the air path. A damper unit 12 having an electric damper 11 that opens and closes in conjunction with the stoppage of operation of the functional unit 6 is provided at the air supply outlet 8 and exhaust inlet 9 of each functional unit 6,
The air supply outlet 8 of each functional unit 6 is connected to one indoor air supply chamber 13 via a damper unit 12, respectively.
The exhaust suction ports 9 are each connected to one exhaust suction chamber 14 via a damper unit 12 . An air supply duct 15 whose one end is connected to an indoor air supply port is connected to the indoor air supply chamber 13, and an exhaust duct 16 whose one end is connected to an indoor air exhaust port is connected to the exhaust suction chamber 14. Further, the air supply inlet 7 of each functional unit 6 is connected to one outside air suction chamber 18 through a duct 17, and the outside air suction chamber 18 is connected to the outside (in most cases, outdoors) through an outside air suction louver 19. There is. Further, the exhaust outlet 10 of each functional unit 6 is connected to one exhaust outlet chamber 2 via a duct 20.
1, and the exhaust blowing chamber 21 is connected to the outside (mostly outdoors) via the exhaust blowing louver 22. Functionally, the functional units 6 are in a parallel relationship, and the number of operating units can be controlled within the range of 1 to n units.

In the air conditioning ventilation system having the above configuration, each functional unit 6, which can be said to be a structural unit of the system, is capable of individually supplying outside air into the room through the heat exchange element 5, and exhausting indoor air to the outside through the heat exchange element 5. However, they do not function individually, but work together to meet ventilation airflow requirements. In other words, if the processing air volume of one functional unit 6 is m, it is possible to handle the processing air volume from m to nm by controlling the number of operating functional units 6, and the device uses a single large air volume blower. The operating noise in the small air volume region is lower than that of the previous model, and a wide range of demands from small to large air volumes can be easily met by simple methods such as controlling the number of units in operation. Furthermore, although the upper limit of the processing air volume will change depending on the number of stacked units, the flat area of the installation will not exceed the area of one functional unit 6. For the functional unit 6 that is stopped, its electric damper 1
1 is closed, no airflow flows through the air passage provided by this functional unit 6. Note that the function of air conditioning and ventilation using air supply and exhaust air is the same as previous devices, so a description thereof will be omitted.

0012

Effects of the Invention As is clear from the above description of the embodiments, according to the air conditioning ventilation system of the present invention, the number of operational units of a plurality of functional units stacked vertically and each individually completed as an air conditioning ventilation system is This control enables a wide range of airflow control from one functional unit to the number of stacked functional units, and allows for a relative reduction in operating noise.

[0013] According to another air conditioning ventilation system of the present invention, control of the number of operating units of a plurality of functional units in particular can be easily controlled by the electric damper, and the entire system can be smoothly operated in accordance with air volume control.

[0014]

[Brief explanation of the drawing]

FIG. 1 is a plan view showing the configuration of an air conditioning ventilation system according to the present invention.

FIG. 2 is a front view showing the configuration of an air conditioning ventilation system according to the present invention.

[Explanation of symbols]

1　Air supply air path 2 Exhaust air duct 3 Air supply blower 4 Exhaust blower 5 Heat exchange element 6 Functional unit 7 Air supply inlet 8 Air supply outlet 9 Exhaust suction port 10 Exhaust outlet

Claims (2)

[Claims] Claim 1: The air supply air path has an air supply air passage for supplying outdoor air and an exhaust air air passage for exhausting indoor air, and the air supply air path has an air supply air intake port that is an inlet end and an outlet end of the air supply air passage. A supply air blower is provided to form a supply air flow toward a supply air outlet,
The exhaust air passage is provided with an exhaust blower that forms a supply air flow from the exhaust suction port, which is the inlet end, to the exhaust air outlet, which is the outlet end, and a part of the supply air passage and the exhaust air passage is connected to a heat exchange element. Ventilation capacity is increased by vertically stacking n functional units that enable heat exchange between supply air flow and exhaust air flow through working fluid passages, and controlling the number of units in operation from 1 to n units. An air conditioning ventilation system characterized by being able to vary from 1 unit to n units. 2. The air conditioner according to claim 1, wherein the air supply outlet and the exhaust air intake of the functional unit are each provided with an electric damper that opens and closes in conjunction with the shutdown of the functional unit. Ventilation equipment.