JPH07332748A - Ventilation system - Google Patents

Abstract

PURPOSE:To prevent a mistake from being made in work without the need for the change-over and the like of a ventilator even in the case of different system constructions by identifying an addition air blow mode and a post- priority air blow mode, deciding which mode it is and then deciding an air blow quantity in accordance with the mode thus decided. CONSTITUTION:In the case of a system construction with air conditioners 3a to 3d, wherein a demand for an air blow quantity in an absolute air quantity is transmitted to a ventilator 1, identification signals from which an addition air blow mode can be identified are transmitted to the ventilator 1 from the air conditioners 3a to 3d at the start of air blow. Thereby, the ventilator 1 decides the addition air blow mode, then decides the air quantity according to the addition air blow mode and blows air. In the case of a system construction with the air conditioners 3a to 3d, wherein a demand for an air blow quantity in an absolute air quantity or in a relative air quantity is transmitted to the ventilator 1, identification signals from which a post-priority air blow mode can be identified are transmitted to the ventilator 1. Thereby, the ventilator 1 decides the post-priority air blow mode, then decides the air quantity according to the post-priority air blow mode and blows air.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a ventilation system having one ventilation device as a core.

[0002]

2. Description of the Related Art Conventionally, a ventilation system may be constructed by connecting a plurality of terminal units to one ventilation device through a branch duct or by operating the ventilation device alone without connecting the ducts. Many. The former is, for example, Japanese Patent Laid-Open No. 3-1
As disclosed in Japanese Patent No. 10341, the ventilation device calculates the air volume required by each terminal unit, and the ventilation device itself determines its own air volume and sends the air to the branch duct. The latter is often configured so that the ventilation device can be operated from a plurality of locations by a plurality of remote controllers with respect to a single ventilation device. Since the ventilation system, which is the core of the ventilation system, has a different blowing method depending on the system to be incorporated, switching setting is performed so as to perform a different function for each system using a switch for capacity switching according to the system to be incorporated.

Further, in a ventilation system for ventilating a plurality of locations from a plurality of terminal units by means of a branch duct, some ventilation systems may be provided with a damper for opening and closing each terminal portion of the branch duct, and some may not. In a system equipped with such a damper, the ventilation of the terminal unit can be blocked by closing the damper, so it is sufficient to operate the ventilator at the total air volume of the requested terminal unit. If there is an air volume required even from one terminal unit, the air volume required by the terminal unit cannot be secured unless the ventilation device is operated with the total of the required air volumes of all the terminal units. Therefore, also in this case, it is necessary to change the function of the ventilation device depending on the built-in system.

In the actual construction of the ventilation system, it is quite troublesome and troublesome to switch the function of the ventilation device or change the function according to the difference in the system configuration as described above, and the setting error. It is easy to invite construction mistakes such as forgetting to change or. Therefore, the system is often configured with a ventilation device of a model that does not require changes in settings and functions.

[0005]

SUMMARY OF THE INVENTION The present invention has been made in order to solve the above-mentioned conventional problems. The problem is that the function of the ventilator is not changed even if the system configuration is different. , It is to obtain a ventilation system that can prevent the occurrence of construction errors, and to obtain a ventilation system that can easily cope with or without a damper in a branch duct.

[0006]

In order to achieve the above-mentioned object, the invention according to claim 1 blows air by adding the air blowing amount of each request to the request of the air blowing amount in absolute air amount from a plurality of units. The ventilation system is equipped with an additive air flow mode that enables the ventilation system and a post-priority air flow mode that prioritizes and sends the later requests to a plurality of requests for the absolute air flow rate or the relative air flow rate. The unit that transmits the request for the air volume to the ventilation device is made to transmit an identification signal to the ventilation device so that the ventilation device can identify the addition ventilation mode at the start of ventilation,
A unit that sends a request for absolute or relative airflow to the ventilator shall have an identification signal sent to the ventilator that allows it to identify that it is in post-priority airflow mode, and the ventilator should identify these. A means provided with an air volume determining means for determining the additive air-blowing mode or the post-priority air-blowing mode according to the signal and for deciding the air-blowing volume according to the mode is adopted.

In order to achieve the above-mentioned object, the invention of claim 2 is an addition air-blowing mode in which air is blown by adding the air-blowing amount of each request to the air-blowing amount request in absolute air-flow from a plurality of units, The ventilator is equipped with a post-priority air-blowing mode that prioritizes later requests for airflow in response to a plurality of requests for airflow in absolute airflow or relative airflow, and requests airflow in absolute airflow. The unit that transmits to the unit that transmits the request for the air volume in absolute air volume or relative air volume to the ventilator, to the unit that transmits to the Causes the ventilator to send an identification signal that allows it to identify that it is in the post-priority air blowing mode, and the ventilator determines whether the additive air blowing mode or the post-priority air blowing mode is determined by these identification signals. The air volume determining means for determining the air volume and the ventilation device operating in either the additive air mode or the rear priority air mode, when an identification signal different from the mode is transmitted, And a means for changing to a mode based on the identification signal transmitted later.

In order to achieve the above object, the invention of claim 3 is a ventilation system in which a unit is connected to each end of a branch duct via a branch duct to ventilate from one place to a plurality of places. , Each unit at the end of the branch duct is required to request a predetermined ventilation amount for the ventilation device by an absolute air flow rate, and the ventilation device has a required air flow rate of 0 from the sum of the required air flows from each unit. A means is provided which has a switching means for switching between one of a mode in which the amount of air blown is subtracted and air is blown, and a mode in which air is blown by the sum of the required airflow from each unit unless the required airflow from all units becomes 0. .

[0009]

In the means according to claim 1, in the system configuration in which the unit for transmitting the request for the absolute air flow rate to the ventilation device is connected, it is possible to identify the addition air flow mode from the unit at the start of air flow. A signal is sent to the ventilator, which causes the ventilator to determine the additive airflow mode, and the additive airflow mode determines the air volume and airflow. Also, in a system configuration with a unit that sends a request for an absolute airflow or a relative airflow to the ventilator, an identification signal that can identify the rear priority airflow mode is sent to the ventilator, which causes the ventilator to The preferential air-blowing mode is decided, and the air volume is decided and blown by the post-priority air-blowing mode.

According to the second aspect of the present invention, in the system configuration in which the unit for transmitting the request for the absolute air flow rate to the ventilation device is connected, the unit can identify the addition air flow mode at the start of air flow. A signal is sent to the ventilator, which causes the ventilator to determine the additive airflow mode, and the additive airflow mode determines the air volume and airflow. If the system configuration changes or if the identification signal of the rear priority ventilation mode is sent to the ventilation device on the way,
When the additive ventilation mode is switched to the post-priority ventilation mode, and the identification signal of the additive ventilation mode is transmitted to the ventilation device, the additive ventilation mode is switched again. Also, in a system configuration with a unit that sends a request for an absolute airflow or a relative airflow to the ventilator, an identification signal that can identify the rear priority airflow mode is sent to the ventilator, which causes the ventilator to The preferential air-blowing mode is decided, and the air volume is decided and blown by the post-priority air-blowing mode. If the system configuration changes, and the additional ventilation mode identification signal is sent to the ventilation device during the process, the rear priority ventilation mode is switched to the additional ventilation mode, and the rear priority ventilation mode identification signal is transmitted to the ventilation device. If so, the mode is switched to the rear priority air blowing mode again.

According to the third aspect of the present invention, in the system configuration in which the ventilation unit is connected by the branch duct equipped with the damper, the air flow rate of the request air volume of 0 is subtracted from the sum of the air volume requirements of the units. In a system configuration in which the units can be switched to a mode that blows air by means of a branch duct that does not include a damper, unless the required air volume from all ventilation units is 0, the total required air volume from each ventilation unit It is possible to switch to the blowing mode.

[0012]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings. Example 1. FIG. 1 shows a system configuration related to a communication system of a ventilation system as an embodiment, and FIG. 2 similarly shows a system configuration related to the configuration of the ventilation system. This ventilation system comprises one ventilation device 1 and four air conditioners 3a, 3b, 3c, 3 in this embodiment as a plurality of units connected in parallel to the ventilation device 1 by a branch duct 2.
and d. The ventilation device 1 is a simultaneous heat supply / exhaust type total heat exchange ventilation device, and has a built-in humidifier 4 for humidifying the supply air flow. The air conditioner 3 creates a cooling atmosphere or a heating atmosphere in each room while circulating the air in each installed room, and sends about 20% of the circulating air volume from the ventilation device 1 via the branch duct 2. Supply indoors. However, most basically, the system configuration may include a ventilation device 1 that is a main component of the air blowing function and a plurality of units as terminal devices that blow air into each room.

Ventilator 1 and four air conditioners 3a, 3b, 3
c and 3d are connected by a communication line 5 as shown in FIG.
It is operated by one remote controller 6a, 6b. Remote control 6
The operation system by a and 6b is divided into two groups. One group is composed of the remote controller 6a, the air conditioners 3a and 3b, and the ventilation device 1 as shown in FIG. 3, and the other group is composed of the remote controller 6b and the air conditioner 3 as shown in FIG.
It is composed of c and 3d and the ventilation device 1. That is, each group is given a start / stop or control signal by the remote controllers 6a and 6b belonging to the group. Since the ventilation device 1 extends over two groups, it operates in conjunction with the operation of the air conditioners 3a, 3b, 3c, 3d of any group. In addition to the remote controllers 6a and 6b, the ventilation device 1 includes a dedicated operation unit (a plurality of dedicated remote controllers 7a and 7b).
In some cases, it may be controlled by a dedicated remote controller 7a or 7b).

An operation request to the ventilation device 1 from each remote controller 6a, 6b is temporarily sent via the communication line 5 to each air conditioner 3a, 3b, 3c, 3 of the group as shown in FIG.
sent to d. Each of the air conditioners 3a, 3b, which received this,
In 3c and 3d, the absolute value of the preset airflow (normally about 20% of the circulating airflow of the air conditioner) (for example, requesting air blowing with a capacity of 500 cubic meters per hour) is supplied to the ventilation device 1. It transmits via the communication line 5. The request for the air volume to the ventilation device 1 is made when the ventilation system is started up, and the required air volume is maintained in the ventilation device 1. The signal related to the request for the air volume to be transmitted from each air conditioner 3a, 3b, 3c, 3d to the ventilation device 1 includes:
An identification signal is sent together so that the ventilation device 1 can identify that the request is from the air conditioner 3a, 3b, 3c, 3d.

The exclusive remote controllers 7a and 7b of the ventilation device 1 are
As shown in FIG. 6, it is often used when a ventilation system is composed of a single ventilation device 1. That is, the ventilation system is configured so that the operation of the ventilation device 1 can be stopped and the air volume can be requested by the dedicated remote controllers 7a and 7b installed at a plurality of locations. The operation request and the required air volume from the dedicated remote controllers 7a and 7b to the ventilation device 1 (either the absolute air volume or the relative air volume may be used, but a normal user can easily understand the relative air volume such as strong, medium, and weak) and use it. Each is directly transmitted to the ventilation device 1 via the communication line 5 as shown in FIG. The request for the air volume to the ventilation device 1 is made at any time. The signal relating to the request for the air volume to be transmitted from the dedicated remote controllers 7a and 7b to the ventilation device 1 is transmitted together with an identification signal so that the ventilation device 1 can identify that the request is from the dedicated remote controllers 7a and 7b. To be done.

A communication line 5 is connected to the ventilation device 1 by the air conditioners 3a, 3a.
A control device 8 connected to b, 3c and 3d is incorporated. The control device 8 is composed of an air flow rate determination system, a ventilation mode determination system, and a humidifier operation determination system based on the transmission / reception device 9 as shown in the block configuration of FIG. Communication line 5
The transmission / reception device 9 connected to determines the transmitted signal and distributes it to the air volume determination system, the ventilation mode determination system, or the humidifier operation determination system. The air volume determination system is configured with the air volume determination means 10 and the fan drive means 11 at the core, and the fan drive means 11 obtains the air volume determined by the air volume determination means 10 and the air supply fan 12 of the ventilation device 1.
The exhaust fan 13 is controlled while being monitored by the supply air flow rate sensor 14 and the exhaust air flow rate sensor 15, respectively. The air flow rate determining means 10 discriminates from the air conditioners 3a, 3b, 3c, 3d or the dedicated remote controllers 7a, 7b by operating signals from the air conditioners 3a, 3b, 3c, 3d or the dedicated remote controllers 7a, 7b and the identification signal. . Air conditioners 3a, 3b,
If it is a driving command from 3c, 3d, each air conditioner 3a, 3d
The additive air flow mode for determining the air flow rate is determined by adding the required air flow rates b, 3c, 3d, and the fan drive means 11 is used to perform the air flow in the additive air flow mode. The air flow rate determination means 10 is provided with a changeover switch 16 for switching its function, and the addition pattern of the air flow rate is the changeover switch 16
Is different depending on the on / off of.

That is, in the system configuration shown in FIGS. 1 and 2, operation commands are issued from the air conditioners 3a and 3b of one group, and stop commands are sent from the air conditioners 3c and 3d of the other group. In each case, each air conditioner 3a, 3b, 3c,
If a damper is connected to the 3d outside air intake,
When the changeover switch 16 is turned on, the air is blown at the sum of the required air volumes of the air conditioners 3a and 3b. All air conditioners 3a,
When there is a driving command from 3b, 3c, 3d and the dampers are not connected, the changeover switch 16
Is turned off, and the sum of the required air volumes of all the air conditioners 3a, 3b, 3c, 3d is sent as the actual air volume (FIG. 9).
reference). On the other hand, if it is distinguished from the operation command from the dedicated remote controllers 7a and 7b, the air is sent in the post-priority air-blowing mode in which the air volume required later is prioritized.

Further, with respect to the ventilation device 1 operating in either the additive ventilation mode or the post-priority ventilation mode,
When an identification signal different from that mode is sent,
The air volume determination means 10 has an algorithm for changing to a mode based on the identification signal transmitted later. Therefore, even in the additive blowing mode, the dedicated remote controller 7 will be installed later.
If there is a request for the air volume from a, 7b, the air blowing mode is changed to the rear priority air blowing mode, and even in the rear priority air blowing mode, if there is a request for the air volume from the air conditioners 3a, 3b, 3c, 3d later, The ventilation mode will be changed to the additive ventilation mode.

The ventilation mode deciding system is constituted by the ventilation mode deciding means 17 and the ventilation mode switching means 18 as the core, and the ventilation mode deciding means 18 is the ventilation mode deciding means 1
Ventilator 1 to realize the ventilation mode determined by 7.
The damper 19 is controlled while the indoor temperature detecting sensor 20 and the outdoor temperature detecting sensor 21 monitor the indoor temperature and the outdoor temperature, respectively. By opening / closing the damper 19, heat exchange ventilation for supplying / exhausting air through the total heat exchanger and normal ventilation for supplying / exhausting air by bypassing the total heat exchanger are switched.

The humidifier operation determining system is configured with the humidifier operation determining means 22 and the humidifier driving means 23 as the core, and the humidifier driving means 23 realizes the humidifying operation determined by the humidifier operation determining means 22. Therefore, the humidifier 4 is controlled while the outdoor temperature detecting sensor 21 monitors the outdoor temperature.

When actually constructing the ventilation system having the above configuration, the system configuration is made up of a plurality of air conditioners 3a, 3b, 3
Even if the c and 3d are connected by the branch duct 2, or the ventilation device 1 is independently provided with a plurality of dedicated remote controllers 7.
Even if it is operated by a, 7b, as shown in FIG. 7, a plurality of air conditioners 3a, 3b, 3c, 3d are connected by a branch duct 2 and a dedicated remote controller 7a, 7b is also connected. Even if it is a thing, it is not necessary to change the setting or change the function of the ventilation device 1. The function will be described using the ventilation system having the complex system configuration shown in FIG. 7. First, in the stopped state 24 shown in FIG. 10, the ventilation device 1 does not recognize the system configuration, but the dedicated remote controllers 7a and 7b or the air conditioner are used. It is in a standby state in which it can receive a driving command from any of 3a, 3b, 3c and 3d and execute it.

In this standby state, the dedicated remote controller 7
When the operation command is transmitted from a and 7b, the ventilation device 1 shifts from the state 24 to the state 25 in FIG. 10 and performs the air blowing for determining the air volume in the post-priority air blowing mode. In the case where the air volume is not set only by the operation stop signal or the dedicated remote controllers 7a and 7b do not have the air volume setting function, the ventilation device 1 has the maximum air volume that it has as an initial value and operates at that air volume. When the stop command is transmitted from the dedicated remote controllers 7a and 7b, the state shifts from the state 25 to the state 24 in FIG.
Return to the standby state.

In the standby state, the remote controllers 6a, 6
When the driving command from b is transmitted via the air conditioners 3a, 3b, 3c, 3d, the ventilation device 1 is in the state 24 in FIG.
Is changed to the state 26, and air is blown to determine the air volume in the additive air blowing mode. At this time, if some of the air conditioners 3a and 3b are transmitting a stop request signal, the changeover switch 16 is turned on, and air is blown at an air volume obtained by adding the requested air volumes of the air conditioners 3c and 3d that do not have a stop request. Let All air conditioners 3a, 3
If there is an operation request from b, 3c, 3d, the changeover switch 1
6 is turned off, and air is blown at an air volume obtained by adding all required air volumes. In this way, when an identification signal different from the mode is sent to the ventilation device 1 operating in either the additive air blowing mode or the rear priority air blowing mode, the air volume determination unit 10 sends it later. The mode is changed to the mode based on the received identification signal.

Example 2. In the ventilation system having the system configuration according to the first embodiment shown in FIG. 2, determination of the air volume is performed with and without the damper for opening and closing the branch duct 2 to each air conditioner 3a, 3b, 3c, 3d. The methods cannot be the same. That is, the air conditioners 3a, 3
When part of b, 3c, 3d requests stop and part of it requests operation, in a system configuration without a damper, air is blown with an air volume obtained by adding the required air volumes of the air conditioners 3a, 3b that have operation requests. Even then, the amount of air leaking from the branch duct 2 of the stopped air conditioners 3c and 3d becomes insufficient.
The second embodiment solves this problem. Since the basic configuration of the ventilation system itself is the same as that shown in the first embodiment, the drawings of the first embodiment are used, and the description of the overlapping parts will be omitted.

In this ventilation system, when there is no damper, the mode in which the changeover switch 16 is turned off is selected.
That is, the ventilation device 1 in the state 26 in FIG. 10 enters the state 24 in the standby state when there is no operation command from all the air conditioners 3a, 3b, 3c, 3d, but all the air conditioners 3
The state 26 is maintained as long as there is no driving command from a, 3b, 3c, 3d, and all the air conditioners 3a, 3b, 3c, 3
The air is blown at a volume that is the total of the required volume of d. If there is a damper, the mode in which the changeover switch 16 is turned on is selected, and air is blown at an air volume by adding the required air volumes of the air conditioners 3a and 3b that do not require a stop. Therefore, the ventilation system can be easily configured by the ventilation device 1 of the same model whether or not the branch duct 2 has a damper.

[0026]

As is apparent from the above description of the embodiments, according to the inventions of claim 1 and claim 2, even if the system configuration is different, the function switching setting operation of the ventilation device is not required, and the construction is performed. A ventilation system with almost no construction errors can be obtained.

According to the third aspect of the present invention, there is provided a ventilation system which can be easily adapted to the system configuration without a damper in the system configuration with or without the damper in the branch duct, only by switching the switching means. can get.

[Brief description of drawings]

FIG. 1 is a configuration diagram showing a system configuration related to a communication system of a ventilation system as an embodiment of the present invention.

FIG. 2 is a configuration diagram showing a system configuration of a ventilation system as an embodiment of the present invention.

FIG. 3 is an explanatory diagram showing a group configuration in the system configuration of FIG.

FIG. 4 is a configuration diagram showing a system configuration of a ventilation system as an embodiment of the present invention.

5 is an explanatory diagram showing a flow of control signals of the ventilation system of FIG. 1. FIG.

6 is an explanatory diagram showing a flow of control signals of the ventilation system of FIG.

FIG. 7 is a configuration diagram showing a system configuration of another ventilation system as one embodiment of the present invention.

FIG. 8 is a block diagram of a control device of the ventilation device according to the exemplary embodiment of the present invention.

FIG. 9 is an explanatory diagram showing the function of the changeover switch according to the embodiment of the present invention.

FIG. 10 is an explanatory diagram showing an algorithm of control of the air volume determination means in FIG.

[Explanation of symbols]

 1 Ventilation device 2 Branch duct 3a Air conditioner 3b Air conditioner 3c Air conditioner 3d Air conditioner 5 Communication line 6a Remote control 6b Remote control 7a Dedicated remote control 7b Dedicated remote control 8 Control device 10 Air volume determination means 16 Changeover switch

Claims (3)

[Claims] 1. An additive air-blowing mode in which the air-blowing amount of the absolute air-flow from a plurality of units is added and the air-blowing amount of each of these requests is added, and a plurality of the air-blowing amounts of the absolute air-flow or the relative air-flow are provided. For a request, the ventilation system is equipped with a post-priority air-blowing mode that prioritizes and sends the request afterward, and the unit that sends a request for the absolute air volume to the ventilation system is added at the start of ventilation. A unit that sends an identification signal to the ventilation device to identify the ventilation mode, and sends a request for the absolute or relative air volume to the ventilation device is set to the rear priority ventilation mode. An identification signal is sent to the ventilation device so that the ventilation device can be identified, and the ventilation device is provided with an air volume determination means that determines the additive air flow mode or the post-priority air flow mode based on these identification signals, and determines the air flow rate accordingly. Built-in ventilation system. 2. An addition air-blowing mode in which the air-blowing amount of the absolute air volume from a plurality of units is added and the air-blowing amount of each of the demands is added, and a plurality of the air-blowing amounts of the absolute air volume or the relative air volume are provided. For a request, the ventilation system is equipped with a post-priority air-blowing mode that prioritizes and sends the request afterward, and the unit that sends a request for the absolute air volume to the ventilation system is added at the start of ventilation. A unit that sends an identification signal to the ventilation device to identify the ventilation mode, and sends a request for the absolute or relative air volume to the ventilation device is set to the rear priority ventilation mode. An air flow rate determination means for transmitting an identification signal that enables identification to the ventilation system, and for the ventilation system to determine the additive air flow mode or the post-priority air flow mode based on these identification signals, and to determine the air flow rate accordingly. , When an identification signal different from that mode is transmitted to the ventilation device operating in either the additive ventilation mode or the post-priority ventilation mode, based on the identification signal transmitted later. Ventilation system configured to change to mode. 3. A ventilation system in which a unit is connected to an end of each branch duct via a branch duct to a ventilation device to perform ventilation from one place to a plurality of places, wherein each unit at the end of the branch duct has the above-mentioned structure. The ventilation device is requested to have a predetermined required air flow amount as an absolute air flow rate, and the ventilation device sends air by subtracting the air flow amount for which the required air flow amount is 0 from the sum of the air flow demands from the units. A ventilation system characterized by comprising switching means for switching between a mode and a mode in which air is blown at the sum of required air volumes from each ventilation unit unless the required air volumes from all ventilation units become zero.