JPH0420737A - Air conditioner - Google Patents
Air conditionerInfo
- Publication number
- JPH0420737A JPH0420737A JP2123656A JP12365690A JPH0420737A JP H0420737 A JPH0420737 A JP H0420737A JP 2123656 A JP2123656 A JP 2123656A JP 12365690 A JP12365690 A JP 12365690A JP H0420737 A JPH0420737 A JP H0420737A
- Authority
- JP
- Japan
- Prior art keywords
- air
- blower
- damper
- air volume
- control means
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000007664 blowing Methods 0.000 claims abstract description 44
- 238000012545 processing Methods 0.000 claims abstract description 21
- 238000009423 ventilation Methods 0.000 claims description 32
- 238000004378 air conditioning Methods 0.000 claims description 14
- 230000001143 conditioned effect Effects 0.000 abstract description 5
- 238000000034 method Methods 0.000 abstract description 3
- 238000005273 aeration Methods 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 7
- 238000012360 testing method Methods 0.000 description 5
- 230000008859 change Effects 0.000 description 4
- 238000005057 refrigeration Methods 0.000 description 3
- 230000007547 defect Effects 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 230000007246 mechanism Effects 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000003750 conditioning effect Effects 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000012937 correction Methods 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000009472 formulation Methods 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000000737 periodic effect Effects 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 230000002747 voluntary effect Effects 0.000 description 1
Landscapes
- Air Conditioning Control Device (AREA)
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
この発明は各部屋の室温を独立に調節できる可変風量制
御システムを採用した主ダクトおよび枝ダクトを有する
空気調和装置に関するものである。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to an air conditioner having a main duct and branch ducts and employing a variable air volume control system that can independently adjust the room temperature of each room.
〔従来の技術）
従来の送風機風量を制御する可変風量制御システムを採
用した空気調和装置として、送風機により冷風若しくは
温風をダクトを介して各部屋に分配して提供するものが
ある。しかし、各部屋に分岐された枝ダクトは、この分
岐点から各部屋までの長さか各々相違しているのか常で
あり、これらの各分岐ダクトの送風抵抗には各々差異が
ある。[Prior Art] As an air conditioner that employs a conventional variable air volume control system that controls the air volume of a blower, there is an air conditioner that uses a blower to distribute and provide cold or warm air to each room via a duct. However, the branch ducts branched into each room usually have different lengths from the branch point to each room, and the air blowing resistance of each of these branch ducts is different.
また、ダクト取付工事の不具合、例えば、ダクト断面形
状の歪等による変形、或いはダクト内への異物の介在等
によっても各ダクトの送風抵抗は影響を受ける。Furthermore, the air blowing resistance of each duct is also affected by defects in the duct installation work, such as deformation due to distortion of the cross-sectional shape of the duct, or the presence of foreign matter inside the duct.
かかる状態、特に、後者の場合において、共通の送風用
風路部分、即ち、主ダクトの根元部分の圧力を検出して
送風機の駆動を制御すると、下流側の圧力損失の差異を
無視することになり、各部屋毎に特産のよい送風制御、
ひいては室温の制御ができない。In such a situation, especially in the latter case, if the pressure of the common air duct, that is, the root of the main duct, is detected to control the drive of the blower, the difference in pressure loss on the downstream side will be ignored. Specially designed good ventilation control for each room,
Furthermore, the room temperature cannot be controlled.
以下に示す従来例は、各部屋に送風される前の主ダクト
の根元部の圧力を検出して、送風機の駆動を制御するも
のである。In the conventional example shown below, the pressure at the base of the main duct before air is blown into each room is detected to control the drive of the blower.
これらの従来例を代表する具体例として、日本冷凍協会
発行の冷凍空調便覧（新版・第４版応用編）の第２章・
空調システムの４１ベージに記載されている図２・１０
（ａ）の例を選び、その動作について以下説明する。As a representative example of these conventional examples, see Chapter 2 of the Refrigeration and Air Conditioning Handbook (New Edition/4th Edition Applied Edition) published by the Japan Refrigeration Association.
Figures 2 and 10 listed on page 41 of the air conditioning system
The example (a) will be selected and its operation will be explained below.
第６図は前記冷凍空調便覧に記載の従来の空気調和装置
を示す構成図である。FIG. 6 is a configuration diagram showing a conventional air conditioner described in the Refrigeration and Air Conditioning Handbook.
図において、１は空気調和の対象となる被空調室で、こ
の図では、４部屋の場合を示している。In the figure, 1 is an air-conditioned room to be air-conditioned, and this figure shows a case of four rooms.
２は被空調室１の天井内等に配設され冷風または温風の
送風源として機能する室内機である集中送風手段、３は
空気中の塵芥等を除去して空気を浄化するエアーフィル
タ、４は空気を冷却または加熱する熱交換器、５は冷風
または温風を送風する送風機である。この室内機２はエ
アーフィルタ３、熱交換器４、及び送風機５で構成され
ている。６は室内機２の空気吹出口に連通ずる主ダクト
、７はこの主ダクト６から各被空調室１の数に応じて分
岐した枝ダクト、８は各枝ダクト７部に装着され各被空
調室１への送風量を調整する絞り形式の送風調整ユニッ
ト、９はこの絞り形式の送風調整ユニット８内に回動可
能に取付けられているダンパ、１０は枝ダクト７の末端
に位置する吹出口、１工は被空調室１の扉の下方部に配
設ざねている吸込口、工２は被空調室１外の廊下の天井
面に配設されている天井吸込口、１３は天井吸込口１２
と室内機２の吸込口とを連通ずる吸込ダクトである。１
４は各被空調室１内に据付けた室温設定及び室温検出用
のルームサーモスタット、１５は主ダクト６内て送風機
５からの送風温度を検出する温度検出器、１６は同しく
主ダクト６内で送風機５からの送風による風圧を検出す
る圧力検出器、１７は熱交換器４に接続され熱交換器４
での熱変換動作を支配するヒートポンプ等の熱源機であ
る。2 is a concentrated air blower which is an indoor unit installed in the ceiling of the air-conditioned room 1 and functions as a source of cold or hot air; 3 is an air filter that purifies the air by removing dust and the like from the air; 4 is a heat exchanger that cools or heats air, and 5 is a blower that blows cold or hot air. This indoor unit 2 includes an air filter 3, a heat exchanger 4, and a blower 5. 6 is a main duct that communicates with the air outlet of the indoor unit 2, 7 is a branch duct branched from this main duct 6 according to the number of each air-conditioned room 1, and 8 is attached to each branch duct 7 and each air-conditioned room A diaphragm-type air blow adjustment unit that adjusts the amount of air blown into the chamber 1; 9 a damper rotatably installed in the diaphragm-type air adjustment unit 8; 10 an air outlet located at the end of the branch duct 7; , No. 1 is a suction port located below the door of the air-conditioned room 1, No. 2 is a ceiling suction port located on the ceiling of the hallway outside the air-conditioned room 1, and No. 13 is a ceiling suction port. 12
This is a suction duct that communicates with the suction port of the indoor unit 2. 1
4 is a room thermostat installed in each air-conditioned room 1 for setting and detecting the room temperature; 15 is a temperature detector in the main duct 6 for detecting the temperature of the air blowing from the blower 5; 16 is also in the main duct 6; A pressure detector 17 is connected to the heat exchanger 4 to detect the wind pressure caused by the air blown from the blower 5.
It is a heat source device such as a heat pump that controls the heat conversion operation in the
従来のダクト方式の集中冷暖房用の空気調和装置は上記
のように構成されており、熱交換器４で冷却または加熱
した空気を送風機５で冷風または温風として主ダクト６
及び／または枝ダクト７を介して複数の被空調室１の各
室内に分配し送風する集中送風手段２、及び前記各校ダ
クト７部に装着され前記各被空調室Ｉへの冷風または温
風の送風量をダンパ９の開閉により調整する送風調整手
段である絞り形式の送風調整ユニット８を有している。A conventional duct-type air conditioner for central cooling and heating is configured as described above, and the air cooled or heated by the heat exchanger 4 is converted into cold or warm air by the blower 5 and sent to the main duct 6.
and/or a concentrated air blowing means 2 that distributes and blows air to each of the plurality of air-conditioned rooms 1 via branch ducts 7, and cool air or hot air that is attached to each of the school ducts 7 and blows cold air or hot air to each of the air-conditioned rooms I. It has a diaphragm-type ventilation adjustment unit 8 which is a ventilation adjustment means that adjusts the amount of ventilation by opening and closing a damper 9.
つきに、−Ｆ記のような構成の従来の空気調和装置の動
作について説明する。At the same time, the operation of the conventional air conditioner having the configuration as shown in -F will be explained.
まず、各ルームサーモスタット１４て使用者等か設定し
た設定温度と検出された現在の実際の室温との温度差に
応じて絞り形式の送風調整ユニット８のダンパ９の開度
を任意の位置に各々調節する。このダンパ９の開度に応
して主ダクト６内の圧力も変化する。この圧力の変化は
圧力検出器１６で検出され、予め設定した設定圧力とな
るように送風機５による送風容量を調整する。また、送
風量の変化に伴い熱交換器４の出口側の送風温度も変化
するため、この変化を温度検出器１５が検出し、予め設
定した送Ｈ＆温度となるように熱源機１７の能力を制御
する。First, the opening degree of the damper 9 of the aperture-type ventilation adjustment unit 8 is adjusted to an arbitrary position according to the temperature difference between the set temperature set by the user or the like using each room thermostat 14 and the detected current actual room temperature. Adjust. The pressure inside the main duct 6 also changes depending on the opening degree of the damper 9. This change in pressure is detected by the pressure detector 16, and the air blowing capacity by the blower 5 is adjusted so that the preset pressure is reached. In addition, since the air blowing temperature on the outlet side of the heat exchanger 4 also changes as the air blowing amount changes, the temperature detector 15 detects this change and adjusts the capacity of the heat source device 17 so that the blowing H&temperature is set in advance. Control.
このような一連の制御により、略一定温度に調節された
適量適温の空気が吹出口１０から被空調室１内に吹出さ
れる。すなわち、各被空調室１内の熱負荷の大小に応じ
た風量で吹出される。また、被空調室１内を空調した空
気は吸込口１１から廊下等の空間を通り天井吸込口１２
に流入し、吸込ダクト１３を経て再び室内機２に戻る。Through this series of controls, an appropriate amount of air at an approximately constant temperature is blown out from the air outlet 10 into the air-conditioned room 1 . That is, the air is blown out at an amount depending on the magnitude of the heat load in each air-conditioned room 1. In addition, the air that has been conditioned in the air-conditioned room 1 passes through a space such as a hallway from an inlet 11 to a ceiling inlet 12.
and returns to the indoor unit 2 via the suction duct 13.
そして、再度、上記の動作に従って同一の流れを縁返す
。Then, repeat the same flow according to the above operation.
上記のように、従来の一般的な絞り形式の送風調整ユニ
ット８を用いたダクト方式の集中冷暖房用の空気調和装
置では、各被空調室１内の熱負荷の変動に応して送風温
度と送風圧力との最適値を決定し、これらの値が略一定
となるように熱源機１７と送風機５の容量を制御してい
る。As mentioned above, in a duct-type central air conditioning/heating air conditioner using a conventional, general diaphragm-type air blow adjustment unit 8, the air temperature is adjusted according to fluctuations in the heat load in each air-conditioned room 1. The optimum values for the air blowing pressure are determined, and the capacities of the heat source device 17 and the air blower 5 are controlled so that these values are approximately constant.
なお、上記のような主ダクト６内の圧力変化を制御指標
としない装置が特公昭６０−４７４９７号公報に開示さ
れている。これは、各吹出口の端末風量制御ユニットに
風速センサとしての機能をもたせて送風機５等を制御す
るものである。そして、この装置では、ダンパ９か全開
となって送風条件か最も劣勢にある送風調整ユニットか
設定風量以下の出力を発した場合に、この出力に基つい
て送風機５の送風量を増大するようにし、送風機５を常
に必要最小能力に制御している。Note that Japanese Patent Publication No. 60-47497 discloses a device that does not use pressure changes in the main duct 6 as a control index as described above. This is to control the blower 5 and the like by giving the terminal air volume control unit of each outlet a function as a wind speed sensor. In this device, when the damper 9 is fully opened and the air blowing condition is such that the air blowing adjustment unit that is in the worst condition produces an output that is less than the set air volume, the air blowing volume of the blower 5 is increased based on this output. , the blower 5 is always controlled to the required minimum capacity.
上記のような従来の空気調和装置では、主ダクト６の根
元圧力を一定にするように、根元圧力を制御指標とした
送風機５の送風容量の制御ては、各分岐ダクトの送風抵
抗が各々相違するため、各分岐ダクトを通過する風量、
即ち、各被空調室１への供給風量を適正に制御できなか
った。In the conventional air conditioner as described above, in order to keep the root pressure of the main duct 6 constant, the air blowing capacity of the blower 5 is controlled using the root pressure as a control index, so that the air blowing resistance of each branch duct is different. Therefore, the air volume passing through each branch duct,
That is, the amount of air supplied to each air-conditioned room 1 could not be properly controlled.
また、ダクト取付工事の不具合、例えばダクト断面形状
の歪等による変形、或いはダクト内への異物の介在等に
より送風障害が分岐ダクトに存在する場合には、上記の
各被空調室１への供給風量を適正に維持することは特に
困難であった。In addition, if there is an airflow obstruction in the branch duct due to defects in the duct installation work, such as deformation due to distortion of the cross-sectional shape of the duct, or the presence of foreign matter in the duct, the supply to each air-conditioned room 1 described above will be Maintaining proper airflow was particularly difficult.
なお前記、特公昭６０−４７４９７号公報に開示されて
いるような装置ては、各室内の吹出口での風速を測定し
て適正な風量を得ることができるものの、各端末風量制
御ユニット等が風速センサを必要とするため、犬掻りな
設備となり極めて高価となっていた。通常、この種の空
気調和装置の端末は５〜１５程度もあり、この価格の高
低は極めて重要であった。Although the device disclosed in Japanese Patent Publication No. 60-47497 can obtain an appropriate air volume by measuring the wind speed at the outlet in each room, each terminal air volume control unit, etc. Since a wind speed sensor is required, the equipment is complicated and extremely expensive. Usually, there are about 5 to 15 terminals for this type of air conditioner, and the price range is extremely important.
この発明は、上記の問題点を解消して成されたもので、
簡易な構成及び手段により、送風機の容量制御か適切に
行なえ、かつ各被空調室への通風量が適切に制御できる
空気調和装置を提供することを目的とするものである。This invention was made by solving the above problems.
It is an object of the present invention to provide an air conditioner that can appropriately control the capacity of a blower and the amount of ventilation to each air-conditioned room using a simple configuration and means.
このため、この発明に係る空気調和装置は、送風機と熱
交換器を有し該熱交換器て熱交換した空気を前記送風機
に接続した主ダクト及び枝ダクトを介して複数の被空調
室に送風する集中送風手段と、前記各枝ダクトに装着さ
れ前記被空調室への冷風または温風の送風量をダンパの
開閉により調整する送風調整手段と、前記送風調整手段
のダンパの開閉を制御するダンパ制御手段と、前記送風
機からの送風量を風量検出器により検出して実際の送風
量を測定する風量測定手段と、前記風量測定手段からの
信号により実際の送風量が所定の送風量となるように前
記送風機の回転数を制御する送風機制御手段と、前記送
風機制御手段と風量測定手段とダンパ制御手段の各出力
とにより、前記各送風調整手段の全開時の通過風量と送
風機の回転数との相関関係を演算して各枝ダクトの通風
損失特性を演算し、さらに、その通風損失特性とあらか
じめ既知のダンパの開閉度合によるダンパの通風損失特
性とを合成して、前記各送風調整手段の通過風量とダン
パの開閉度合と送風機の回転数との相関関係をｆｔ算し
て求め、空気調和運転時に、各送風調整手段について必
要な送風圧力差のうちの最大値を求め、該送風圧力差最
大値のとき各送風調整手段か要求風量となる各ダンパの
開閉度にダンパ制御手段を制御し、送風調整手段の要求
風量の総和に対する前託送風圧力差最大値となる送風機
回転数に送風機制御手段を制御する演算処理手段とを備
えたことを特徴とする構成によって、前記の目的を達成
しようとするものである。For this reason, the air conditioner according to the present invention has a blower and a heat exchanger, and blows air heat-exchanged by the heat exchanger to a plurality of air-conditioned rooms through a main duct and branch ducts connected to the blower. a concentrated air blowing means installed in each of the branch ducts and adjusting the amount of cold air or warm air blown to the air-conditioned room by opening and closing a damper; and a damper controlling opening and closing of the damper of the air blowing adjusting means. a control means, an air volume measuring means for measuring an actual air volume by detecting the air volume from the blower with an air volume detector, and a signal from the air volume measuring means so that the actual air volume becomes a predetermined air volume. A blower control means for controlling the rotation speed of the blower, and each output of the blower control means, air volume measuring means, and damper control means are used to calculate the difference between the passing air volume and the rotation speed of the blower when each of the air blow adjustment means is fully opened. The ventilation loss characteristics of each branch duct are calculated by calculating the correlation, and the ventilation loss characteristics are combined with the ventilation loss characteristics of the damper depending on the degree of opening and closing of the damper, which is known in advance. Calculate the correlation between the air volume, the degree of opening/closing of the damper, and the rotation speed of the blower in ft, calculate the maximum value of the blow pressure differences required for each blow adjustment means during air conditioning operation, and calculate the maximum blow pressure difference. When the value is 0, each blow adjustment means controls the damper control means to the degree of opening/closing of each damper that corresponds to the required air volume, and the blower control means controls the blower rotation speed to the maximum value of the predetermined air pressure difference with respect to the total required air volume of the blow adjustment means. The above object is achieved by a configuration characterized by comprising arithmetic processing means for controlling.
この発明に係る空気調和装置は以上の構成によリ、まず
ダンパ制御手段が送風調整手段のダンパの一台を全開と
するとともに他を全閉とし、このときの集中送風手段の
送風量を風量検出器により検出して風量測定手段で測定
し、この測定風量から送風機制御手段が予め設定された
所定の風量となるように送風機の回転数を補正する。そ
して、上記のダンパ制御手段によるダンパの開閉情報及
び送風機制御手段による送風機の制御情報及び風量測定
手段２１による風量情報及び、既知のダンパ開閉角魔に
よるその通風損失特性情報とから演算処理手段はこれら
の各関係を演算してテーブル化或いは定式化する。この
一連の動作は送風調整手段の数たけ行なわれ、各校ダク
ト等に所定の風量を送風するには、送風機の回転数及び
送風調整手段のダンパの開閉度合をいかに制御すべきか
の情報を順次蓄積する。そして、実際の空気調和運転の
ときには、演算処理手段は上記の各情報に基づき、送風
機の回転数及び送風調整手段のダンパの開閉度合を制御
して送風機の運転を必要充分な容量に制御し、また各被
空調室に適量の冷風または温風を設定風量に応じて適切
に供給する。In the air conditioner according to the present invention, with the above configuration, first, the damper control means fully opens one of the dampers of the air blow adjustment means and fully closes the other damper, and the air flow rate of the concentrated air blowing means at this time is adjusted to the air flow rate. The airflow is detected by a detector and measured by an airflow measuring means, and based on the measured airflow, the blower control means corrects the rotation speed of the blower so that the airflow reaches a predetermined airflow. Then, based on the damper opening/closing information by the damper control means, the blower control information by the blower control means, the air volume information by the air volume measuring means 21, and the ventilation loss characteristic information due to the known damper opening/closing angle, the calculation processing means Each relationship is calculated and tabulated or formulated. This series of operations is performed several times by the air blow adjustment means, and in order to blow a predetermined amount of air into each school duct, etc., information on how to control the rotation speed of the blower and the opening/closing degree of the damper of the air blow adjustment means is sequentially transmitted. accumulate. Then, during actual air conditioning operation, the arithmetic processing means controls the rotation speed of the blower and the degree of opening/closing of the damper of the blow adjustment means based on the above information to control the blower operation to a necessary and sufficient capacity, In addition, an appropriate amount of cold air or hot air is appropriately supplied to each air-conditioned room according to the set air volume.
以下、この発明に係る空気調和装置を実施例により説明
する。EMBODIMENT OF THE INVENTION Hereinafter, the air conditioning apparatus based on this invention is demonstrated by an Example.
第１図はこの発明の一実施例である空気調和装置のＪｌ
量制御システムを示す構成図である。なお、図中、符号
２．４か６９まで、および１４で示す部分は前記従来例
の構成部分と同一または相当する部分であり、重複説明
を省略する。この空気調和装置も従来例と同様に、熱源
機（図示せず）に接続された熱交換器４で冷却または加
熱した空気を送風機５で冷風または温風として主ダクト
６及び枝ダクト７を介して複数の被空調室１の各室内に
送風する集中送風手段２、及び前記各枝ダクト７に装着
され前記各被空調室１への冷風または温風の送風量をダ
ンパ９の開閉により調整する送！４１＋整手段８を有し
ている。また、各被空調室１には室温設定および室温検
出用のルームサーモスタット１４を備え、演算処理手段
２３に接続されている。Figure 1 shows an air conditioner according to an embodiment of the present invention.
FIG. 1 is a configuration diagram showing a quantity control system. Incidentally, in the figure, the parts indicated by the reference numerals 2.4 to 69 and 14 are the same as or correspond to the constituent parts of the conventional example, and a redundant explanation will be omitted. Similar to the conventional example, in this air conditioner, air cooled or heated by a heat exchanger 4 connected to a heat source device (not shown) is converted into cold or warm air by a blower 5 through a main duct 6 and a branch duct 7. A concentrated air blowing means 2 blows air into each of the plurality of air-conditioned rooms 1, and is attached to each branch duct 7 to adjust the amount of cold air or warm air blown to each air-conditioned room 1 by opening and closing a damper 9. Send! 41+adjustment means 8. Furthermore, each air-conditioned room 1 is equipped with a room thermostat 14 for setting and detecting room temperature, and is connected to arithmetic processing means 23 .
また、この空気調和装置の通常の空気調和運転は従来よ
り周知の運転動作に準しており、熱源機（図示せず）の
温度・発熱量制御も従来例に準じているので説明省略し
、この発明の特徴である風量制御について以下説明する
。In addition, the normal air conditioning operation of this air conditioner conforms to conventionally well-known operating operations, and the temperature and calorific value control of the heat source device (not shown) also conforms to conventional examples, so explanations will be omitted. Air volume control, which is a feature of this invention, will be explained below.
先ず、この空気調和装置の試運転モートについて説明す
る。First, the test run mote of this air conditioner will be explained.
第１図において、１９は主ダクト６の根元部に配設され
ている風量検出器であり、集中送風手段２からの送風量
を検出する。２０は各送風調整手段のダンパ９の開度を
制御するダンパ制御手段である。このダンパ９には各ダ
ンパ９の開閉動作を個々に行なう駆動機＃Ｉ（図示せず
）が接続されており、ダンパ制御手段２０からの開度信
号に応して各々の駆動機構を作動させ、対応するダンパ
９の開度を制御する。２１は風量検出器１９の検出信号
に基つき実際の送風量を測定する風量測定手段である。In FIG. 1, reference numeral 19 denotes an air volume detector disposed at the base of the main duct 6, which detects the air volume from the concentrated air blowing means 2. 20 is a damper control means for controlling the opening degree of the damper 9 of each air blow adjustment means. A drive mechanism #I (not shown) is connected to this damper 9 and operates each drive mechanism in response to an opening signal from the damper control means 20. , controls the opening degree of the corresponding damper 9. Reference numeral 21 denotes an air volume measuring means for measuring the actual air volume based on the detection signal of the air volume detector 19.
２２は風量測定手段２１による測定風量値を入力として
風量が予め決められた所定の風量値となるように送風機
５の回転数を制御する送風機制御手段である。２３は前
記送風機制御手段２２と風量測定手段２１とダンパ制御
手段２ｏの各出力と既知情報であるダンパ開度と通風損
失特性の関係とにより送風調整手段８の通過風量とダン
パ９の開閉度合と送風機５の回転数との関係を演算し、
ダンパ制御手段２ｏおよび送風機制御手段２２を制御す
る演算処理手段である。この演算処理手段２３は風量測
定手段２１からの測定風量出力と送風機制御手段２２か
らの送風機回転数の出力とダンパ制御手段２０からの当
該ダンパ開閉度情報出力と、既知のダンパ開度とその通
風損失特性情報を入力として、これらの関係を演算評価
し、テーブル化或いは定式化し、各ダクト内の送風抵抗
を算出する。Reference numeral 22 denotes a blower control means that receives the air volume value measured by the air volume measuring means 21 as an input and controls the rotational speed of the blower 5 so that the air volume becomes a predetermined air volume value. 23 determines the passing air volume of the ventilation adjusting means 8 and the degree of opening/closing of the damper 9 based on the outputs of the blower control means 22, the air volume measuring means 21, and the damper control means 2o, and the relationship between the damper opening degree and ventilation loss characteristics, which are known information. Calculate the relationship with the rotation speed of the blower 5,
It is a calculation processing means that controls the damper control means 2o and the blower control means 22. This arithmetic processing means 23 outputs the measured air volume output from the air volume measuring means 21, the output of the fan rotation speed from the blower control means 22, the damper opening/closing degree information output from the damper control means 20, the known damper opening degree and its ventilation. Using the loss characteristic information as input, these relationships are calculated and evaluated, tabulated or formulated, and the air blowing resistance in each duct is calculated.
次に、上記のように構成された空気調和装置の演算処理
手段２３の機能及び動作の一例について、第２図を参照
して説明する。第２図はこの発明の一実施例の空気調和
装置に用いる送風機の回転数と風量と圧力との関係を示
す送風特性図である。Next, an example of the function and operation of the arithmetic processing means 23 of the air conditioner configured as described above will be explained with reference to FIG. 2. FIG. 2 is an air blowing characteristic diagram showing the relationship among the rotational speed, air volume, and pressure of an air blower used in an air conditioner according to an embodiment of the present invention.
第２図において、縦軸は送風機５による静圧Ｐ、横軸は
風量Ｑ、実線は送風機５の特性曲線、破線は所定のダン
パ９に至る枝ダクト７等の送風抵抗を示す抵抗曲線であ
る。実線で示す特性曲線のパラメータは送風機５の回転
数Ｒである。なお、通常パラメータＲに対するＱ−Ｐの
関係は既知である。In FIG. 2, the vertical axis is the static pressure P caused by the blower 5, the horizontal axis is the air volume Q, the solid line is the characteristic curve of the blower 5, and the broken line is the resistance curve showing the air blowing resistance of the branch duct 7, etc. leading to the predetermined damper 9. . The parameter of the characteristic curve shown by the solid line is the rotation speed R of the blower 5. Note that the relationship between QP and the normal parameter R is known.
すなわち、ひとつのダンパ９を全開とし、他のダンパの
すべてを全閉として、このときの送風量をＱｓにしたと
きの送風機５の回転数かＲ１てあったとすると、上記の
既知のＱ−Ｐの関係から、圧力損失（すなわち送風圧力
差）Ｐｌが求まる。一般に、送風圧力差Ｐと風！ＩＱは
、下記の関係を有している。In other words, if one damper 9 is fully open and all other dampers are fully closed, and the air flow rate at this time is Qs, the rotational speed of the blower 5 is R1, then the above known Q-P From the relationship, the pressure loss (that is, the blowing pressure difference) Pl can be found. In general, the difference in air pressure P and the wind! IQ has the following relationship.
Ｐ＝ＣＸＱ’
ここに、Ｃ：損失係数
したがって、送風量Ｑｓのときの送風機５の回転数Ｒ１
からの送風圧力差Ｐ１を演算すれば、未知係数Ｃが定ま
るため、前記全開とした夕′ンノ＼９の系統の枝ダクト
の送風抵抗曲線（破ｍ）が既知となり、その枝ダクト自
体の損失係数Ｃ（ダンパ全開）を求めることかできる。P=CXQ' Here, C: Loss coefficient Therefore, the rotation speed R1 of the blower 5 when the airflow amount is Qs
Since the unknown coefficient C is determined by calculating the air blowing pressure difference P1 from It is possible to find the coefficient C (damper fully open).
さらに第３図のダンパ開閉角度と通風損失係数との特性
図に示すように、ダンパ９はその開閉角Ｄｉによって、
その通風損失係数Ｃ９が変化する。この開閉角Ｄｉと通
風損失係数ｃｏの関係は、あらかじめ使用するダンパ９
について下記のような関数形で既知とすることができる
。Furthermore, as shown in the characteristic diagram of the damper opening/closing angle and the ventilation loss coefficient in FIG.
The ventilation loss coefficient C9 changes. The relationship between this opening/closing angle Di and the ventilation loss coefficient co is determined by the damper 9 used in advance.
can be known in the following functional form.
ＣＩ）＝Ｆ［Ｄｉ］
そして、ダンパ９の開閉度合による通風抵抗と前記枝ダ
クトの送風抵抗は直列抵抗と考えられる。したかって、
ダンパ９の開度変化を含めた枝ダクトの全送風抵抗ＣＴ
は、両者の和（Ｃア＝Ｃ＋Ｃｏ）として与えることかで
きる。以上のことより、当該送風系統についての送風圧
力差Ｐと風量Ｑｉとダンパ開度Ｄｉとの関係が下記のよ
うに定まる。CI)=F[Di] The ventilation resistance due to the degree of opening and closing of the damper 9 and the ventilation resistance of the branch duct are considered to be series resistance. I wanted to,
Total ventilation resistance CT of the branch duct including the change in the opening degree of damper 9
can be given as the sum of both (Ca=C+Co). From the above, the relationship between the blowing pressure difference P, the air volume Qi, and the damper opening degree Di for the blowing system is determined as follows.
Ｐ＝ （ＣＩＦ ［Ｄｉ］ ）Ｑｉ２
そして、上述第２図の説明から、Ｐ、Ｑｉに対応する回
転数Ｒか求められる。P=(CIF[Di])Qi2 Then, from the explanation of FIG. 2 above, the rotation speed R corresponding to P and Qi can be found.
上記と同様な操作を他の送風調整手段８のダンパ９につ
いても行うことにより、各々の送風系統についての送風
機回転数Ｒと風量Ｑｉとダンパ開度Ｄｉとの関係をテー
ブル化或いは定式化できることになる。そしてこのテー
ブル化或いは定式化した結果を用いることによフて、各
送風調整手段８の通過風量をあらかじめ設定すれば、集
中送風手段２の送風機回転数Ｒが定まった時の各送風調
整手段のダンパ開度Ｄｉを各々算出してテーブル化、或
いは定式化できる。By performing the same operation as above for the damper 9 of the other blower adjustment means 8, it is possible to create a table or formulate the relationship between the blower rotation speed R, air volume Qi, and damper opening degree Di for each blower system. Become. By using the tabulated or formulated results, the amount of air passing through each air blow adjustment means 8 can be set in advance, and the air flow rate of each air blow adjustment means when the fan rotation speed R of the concentrated air blower means 2 is determined. The damper opening degrees Di can be calculated and tabulated or formulated.
したがって、上記のような演算処理を実施し、ダンパ制
御手段２０と送風機制御手段２２を制御する演算処理手
段２３を用いて空気調和装置を構成することにより、従
来より要求されていた各被空調室毎の特産の良い送風制
御が、集中送風手段２の送風機５の回転数と送風調整手
段８のダンパ９の開度を制御することにより可能である
。Therefore, by implementing the above calculation processing and configuring an air conditioner using the calculation processing means 23 that controls the damper control means 20 and the blower control means 22, each air-conditioned room as required in the past can be Good air blow control is possible in each case by controlling the rotational speed of the blower 5 of the concentrated air blower means 2 and the opening degree of the damper 9 of the air blow adjustment means 8.
そして、従来の例えば前記特公昭６０１−４７４９７号
公報で開示されているような高価な風速センサを用いた
風量検出センサ機能を各被空調室に備える必要かない。Further, there is no need to provide each air-conditioned room with a conventional air flow rate detection sensor function using an expensive wind speed sensor as disclosed in Japanese Patent Publication No. 601-47497.
次に、この実施例の空気調和装置の動作を説明する。Next, the operation of the air conditioner of this embodiment will be explained.
第４図はこの発明の一実施例の空気調和装置の試運転時
における制御動作例を示すフローチャートである。なお
、この制御動作は演算処理装置２３に備えたマイクロコ
ンピュータの機能を利用して実施するものである。FIG. 4 is a flowchart showing an example of a control operation during a test run of an air conditioner according to an embodiment of the present invention. Note that this control operation is performed using the functions of a microcomputer provided in the arithmetic processing unit 23.
なお、この試運転時の制御動作は、空気調和装置の試運
転時、装置または設備の変更時・定期点検時に実施する
ほか、最大通風量を必要とする被空調室の通風負荷の変
動その他、必要な最大送風圧力の変化か生ずるときに実
施することが望ましい。In addition, this control operation during trial operation is performed during trial operation of the air conditioner, when changing equipment or equipment, and during periodic inspections, as well as changes in ventilation load in air-conditioned rooms that require maximum ventilation volume, and other necessary actions. It is desirable to perform this when a change in the maximum blowing pressure occurs.
まず、第４図ステップＳ１て運転モートか試運転モート
であるか否かを判断する。試運転モートでない場合には
、以下に述へる一連の制御動作は行なわれない。試運転
モートである場合には、ステップＳ２で熱源機（図示せ
ず）の運転を停止し、ステップＳ３で送風機５の運転を
開始する。First, in step S1 in FIG. 4, it is determined whether the mote is a running mote or a trial mote. If it is not a test run mote, the series of control operations described below will not be performed. If it is a test run mode, the operation of the heat source device (not shown) is stopped in step S2, and the operation of the blower 5 is started in step S3.
そして、ステップＳ４て枝ダクト７に接続されている送
風調整手段８のダンパ９の個数Ｎを設定し、ステップＳ
５で最初（１＝１）のダンパ９を全開に設定し、残りの
ダンパ９を全閑状葱にする。このダンパ９の開閉制御は
ダンパ制御手段２０により行なわれる。ステップＳ６で
は集中送風手段２による送風量が設定風量となるように
送風機５の駆動を制御する。すなわち、測定風量が設定
風量よりも大きい場合には送風機５の回転数を低下させ
、逆に測定風量が設定風量よりも小さい場合には送風機
５０回転数を増加させる。この送風機５の制御は送風機
５による実際の送風量を測定する風量測定手段２１及び
送風機制御手段２２により行なわれる。ステップＳ７で
は送風機５の回転数Ｒを測定する。そして、ステップＳ
８では、ダンパ９の開度とその通風損失特性情報を演算
処理手段２３に読み込む。Then, in step S4, the number N of dampers 9 of the ventilation adjustment means 8 connected to the branch duct 7 is set, and in step S4
In step 5, the first damper 9 (1=1) is set to fully open, and the remaining dampers 9 are set to fully open. This opening/closing control of the damper 9 is performed by a damper control means 20. In step S6, the drive of the blower 5 is controlled so that the amount of air blown by the concentrated air blowing means 2 becomes the set air amount. That is, when the measured air volume is larger than the set air volume, the number of revolutions of the blower 5 is decreased, and on the contrary, when the measured air volume is smaller than the set air volume, the number of revolutions of the fan 50 is increased. This control of the blower 5 is performed by an airflow measuring means 21 for measuring the actual amount of air blown by the blower 5 and a blower control means 22. In step S7, the rotation speed R of the blower 5 is measured. And step S
At step 8, the opening degree of the damper 9 and its ventilation loss characteristic information are read into the arithmetic processing means 23.
ステップＳ９では上記手順を実行したダンノヘ９かＮ番
目のダンパ９か否かを判断する。未だＮ番目でない場合
には、ステプＳＩＯでＩ＝Ｉ＋１として再度ステップＳ
５に戻り上記の動作を繰返す。したがって、上記の動作
はＩ＝１からＩ＝Ｎまでのダンパ９のすべてについて順
次行なわれ、合計でＮ回繰返さおることになる。そして
、ステップＳ９でＩ＝Ｎ番目のダンパ９となったことを
確認した場合には、ステップＳｌｌで上記一連の動作で
得た各ダンパ９の開度、送風機５の回転数、及び送風量
の各データからこれらの関係を演算シ、各送風調整手段
８についてテーブル化或いは定式化する。この演算動作
は演算処理手段２３により行なう。In step S9, it is determined whether the damper 9 is the damper 9 that has undergone the above procedure or the Nth damper 9. If it is not yet Nth, set I=I+1 in step SIO and repeat step S
Return to step 5 and repeat the above operation. Therefore, the above operation is performed sequentially for all dampers 9 from I=1 to I=N, and is repeated N times in total. If it is confirmed in step S9 that the damper 9 is the I=Nth damper 9, then in step Sll the opening degree of each damper 9, the rotation speed of the blower 5, and the air blowing amount obtained through the above series of operations are determined. These relationships are calculated from each data and are tabulated or formulated for each air blow adjustment means 8. This calculation operation is performed by the calculation processing means 23.
次に、上記のテーブル化或いは定式化した各ダンパ９の
開度、送風機５の回転数、及び送風量の関係を用いて行
なわれるダンパ９及び送風機５の実際運転時の制御動作
について説明する。Next, a control operation of the damper 9 and the blower 5 during actual operation, which is performed using the table-formulated or formulated relationships among the opening degree of each damper 9, the rotational speed of the blower 5, and the amount of air blown, will be described.
第５図はこの発明の一実施例の空気調和装置の空気調和
運転時の制御動作例を示すフローチャートである。FIG. 5 is a flowchart showing an example of control operation during air conditioning operation of the air conditioner according to an embodiment of the present invention.
まず、ステップＳ２１で各送風調整手段８について、上
記の演算処理手段２３で各送風調整手段８毎に定式化或
いはテーブル化された風量、ダンパ開度、送風機５の回
転数及び既知であるＲとＱ−Ｐの関係を用いて、各送風
調整手段８における風量を設定風量とするときに、ダン
パ開度を全開とした場合の圧力損失Ｐを各々算出する。First, in step S21, for each air blow adjustment means 8, the air volume, the damper opening degree, the rotation speed of the blower 5, and the known R are formulated or tabulated for each air blow adjustment means 8 by the arithmetic processing means 23. Using the relationship Q-P, when the air volume in each air blow adjustment means 8 is set to the set air volume, the pressure loss P when the damper opening is fully opened is calculated.
つきに、ステップＳ２２で各送風調整手段の前記圧力損
失Ｐｉの最大値Ｐｉａ＋ａｘを選出する。ステップＳ２
３では各送風調整手段８について圧力損失ＰがＰ ｗａ
ｘのときに各設定風量を与える各々のダンパ開度を前記
の関係から求める。このとき、ステップＳ２１で圧力損
失ＰがＰ ｗａｘであった送風調整手段８のダンパ９の
開度は当然全開状態となる。そして、ステップＳ２４で
はステップＳ２３で求めたダンパ開度をダンパ開閉手段
２０を介して各々の送風調整手段８に指示して、ダンパ
９を動作させる。そして、ステップＳ２５で各送風調整
手段８の要求風量の総和ΣＱに対して圧力損失の最大値
Ｐ ｗａｘを与える回転数Ｒを設定して、送風機制御手
段２２を介して、この設定値に基づいて集中送風手段２
の送風機５の回転数を制御する。At the same time, in step S22, the maximum value Pia+ax of the pressure loss Pi of each air blow adjustment means is selected. Step S2
3, the pressure loss P for each air blow adjustment means 8 is P wa
The opening degree of each damper that provides each set air volume when x is determined from the above relationship. At this time, the opening degree of the damper 9 of the air blowing adjustment means 8 whose pressure loss P was P wax in step S21 is naturally in the fully open state. Then, in step S24, the damper opening degree obtained in step S23 is instructed to each ventilation adjustment means 8 via the damper opening/closing means 20, and the damper 9 is operated. Then, in step S25, the rotation speed R that gives the maximum value P wax of pressure loss is set for the sum total ΣQ of the required air volume of each air blow adjustment means 8, and the rotation speed R is set based on this set value via the blower control means 22. Centralized ventilation means 2
The rotation speed of the blower 5 is controlled.
このような制御動作を行なうことにより、例えば前記特
公昭６０−４７４９７号公報て開示されているような送
風動力を極小にするような運転制御をより簡易に実現て
きる。By performing such a control operation, it is possible to more easily implement operational control that minimizes the blowing power as disclosed in, for example, Japanese Patent Publication No. 60-47497.
上記のように、この実施例では試運転モートのときに、
ダンパ制御手段２０か送風調整手段８のダンパ９の一台
を全開とするとともに他を全開とする制御を行なう。こ
のときの送風ａ５の送ＩＩ量か風量検出器１９を介して
風量測定手段２１て測定される。送風機制御手段２２は
上記の測定風量から予め設定された所定の風Ｉとなるよ
うに送風機５の回転数を補正する。そして、上記のダン
パ制御手段２０によるダンパ９の開閉情報及び送風機制
御手段２２による送風機５の制御情報及び風量測定手段
２１による風量情報及びダンパの開度と通風損失特性情
報とから演算処理手段２３はこれらの各関係を演算して
テーブル化或いは定式化する。この一連の動作は送風調
整手段８の数だけ行なわれ、各枝ダクト７に所定の風量
を送風するには、送風機５の回転数及び送風調整手段の
ダンパ９の開閉度合をいかに制御すべきがの情報を順次
蓄積する。上記のようにして、各校ダクトの風路抵抗を
事前に検知し、各送風調整手段８の風量を間接的に推定
して、設定風量に対する適切なダンパ９の開閉度合及び
送風機５の回転数を求める。As mentioned above, in this example, during the commissioning mote,
Control is performed to fully open one of the dampers 9 of the damper control means 20 or the air blow adjustment means 8, and to fully open the others. At this time, the air flow rate II amount of the air blow a5 is measured by the air flow rate measuring means 21 via the air flow rate detector 19. The blower control means 22 corrects the rotation speed of the blower 5 based on the above-mentioned measured air volume so that a predetermined wind I is obtained. Then, the calculation processing means 23 calculates the opening/closing information of the damper 9 by the damper control means 20, the control information of the blower 5 by the blower control means 22, the air volume information from the air volume measuring means 21, the opening degree of the damper, and the ventilation loss characteristic information. Each of these relationships is calculated and tabulated or formulated. This series of operations is performed by the number of air blow adjustment means 8, and in order to blow a predetermined amount of air into each branch duct 7, it is necessary to control the rotational speed of the blower 5 and the opening/closing degree of the damper 9 of the air blow adjustment means. information is accumulated sequentially. As described above, the air path resistance of each duct is detected in advance, the air volume of each air blow adjustment means 8 is indirectly estimated, and the opening/closing degree of the damper 9 and the rotation speed of the blower 5 are determined to be appropriate for the set air volume. seek.
そして、実際の空気調和運転のときに、上記の各情報に
基つき、送風機５の回転数及び送風調整手段８のダンパ
９の開閉度合を制御することにより、各被空調室１に適
量の冷風または温風を安定して供給できる。During actual air conditioning operation, the number of rotations of the blower 5 and the opening/closing degree of the damper 9 of the air blow adjustment means 8 are controlled based on the above information, so that an appropriate amount of cold air is delivered to each air conditioned room 1. Or it can provide a stable supply of warm air.
したがって、この実施例では各ダクトの送風抵抗等に応
じて、極めて容易に適正風量の配分と送風動力の低減を
図ることができ、各被空調室１への供給風量を適正に維
持できる。しかも、こわらの制御を風速センサ機能を有
する特殊な端末風量制御ユニット等を各被空調室ごとに
用いることなく簡易な構成で達成できる。この結果、安
価な構成により、効率のよい空気調和効果を実現できる
。Therefore, in this embodiment, it is possible to very easily distribute an appropriate amount of air and reduce the power of air blowing according to the air blowing resistance of each duct, and the amount of air supplied to each air-conditioned room 1 can be maintained appropriately. Moreover, stiffness control can be achieved with a simple configuration without using a special terminal air volume control unit having a wind speed sensor function for each air conditioned room. As a result, efficient air conditioning effects can be achieved with an inexpensive configuration.
以上説明したように、この発明に係る空気調和装置は、
試運転のときに、ダンパ制御手段にょるダンパの開閉情
報及び送風機制御手段による送風機の制御情報及び風量
測定手段による風量情報及び、既知のダンパの開度とそ
の通風損失特性情報とから演算処理手段はこれらの各関
係を演算してテーブル化或いは定式化することにより、
各ダクトの風路抵抗を事前に検知し、各被空調室への風
量を間接的に推定し、設定風量に対する適正なダンパの
開閉度合及び送風機の回転数を求めることかできる。そ
して、実際の空気調和運転のときは、上記の各情報に基
づき、送風機の回転数及び送風調整手段のダンパの開閉
度合を演算処理手段によって制御することにより、送風
動力の低減を図ることができ、かつ各被空調室への供給
風量を適切に維持できる。しかも、これらの制御を風速
センサ等を備えた特殊な端末風量制御ユニット等を各被
空調室に備えることなく、簡易な構成で達成てきるのて
、経済的で効率のよい空気調和装置を提供することかで
きる。As explained above, the air conditioner according to the present invention is
During the trial run, the calculation processing means uses the damper opening/closing information by the damper control means, the blower control information by the blower control means, the air volume information from the air volume measurement means, and the known damper opening degree and its ventilation loss characteristic information. By calculating each of these relationships and creating a table or formulation,
It is possible to detect the air path resistance of each duct in advance, indirectly estimate the air volume to each air-conditioned room, and determine the appropriate degree of opening/closing of the damper and the rotation speed of the blower for the set air volume. During actual air conditioning operation, the blower power can be reduced by controlling the rotational speed of the blower and the opening/closing degree of the damper of the blower adjustment means using the calculation processing means based on the above information. , and the amount of air supplied to each air-conditioned room can be maintained appropriately. Moreover, these controls can be achieved with a simple configuration without requiring special terminal air volume control units equipped with wind speed sensors, etc. in each air-conditioned room, providing an economical and efficient air conditioner. I can do something.
第１図はこの発明に係る空気調和装置の一実施例の風量
制御システムを示す構成図、第２図は同上実施例に用い
る送風機の風量と圧力との関係を示す送風特性図、第３
図はダンパの開度と通風損失係数の関係を示す特性図、
第４図は同上実施例の試運転モードにおける制御動作例
を示すフロチャート、第５図は同上の実施例の空気調和
運転時の制御動作例を示すフローチャート、第６図は従
来の空気調和装置を示す構成図である。
１は被空調室、２は集中送風手段、４は熱交換器、５は
送風機、６は主ダクト、７は枝ダクト、８は送風調整手
段、９はダンパ、１４はルームサーモスタット、１９は
風量検出器、２０はダンパ制御手段、２１は風量測定手
段、２２は送風機制御手段、２３は演算処理手段である
。
なお、図中、同一符号は同一または相当部分をポす。
第
図
Ｑ−修
第
図
第
図
手
続
補
正
量
（自発）
１、事件の表示
平
特願尋
１２３６５６号
２、発明の名称
空気調和装置
３、補正をする者
代表者
士
ｔＬ＋ｘ
岐
守
哉
５、補正の対象
（１）明細書の発明の詳細な説明の欄
（２）図面第３図
６、補正の内容
（１）明細書第２１頁第５行、第８行、および第１１行
の「圧力損失Ｐ」をＪ圧力損失Ｐｉｊと補正する。
（２）同第２１頁第９行、第１１行および第１８行のｒ
Ｐ＋５ａｘＪをｒ Ｐ ｉｍａｘｊ と補正する。
（３）同第２１頁第１４行の［ダンパ開閉手段２０」を
「ダンパ制御手段２０Ｊ と補正する。
（４）図面第３図を別紙のとおり補正する９７、添付書
類の目録
補正後の図面第３図 １通
以上Fig. 1 is a configuration diagram showing an air volume control system of an embodiment of an air conditioner according to the present invention, Fig. 2 is an air blowing characteristic diagram showing the relationship between air volume and pressure of the blower used in the above embodiment;
The figure is a characteristic diagram showing the relationship between damper opening and ventilation loss coefficient.
FIG. 4 is a flowchart showing an example of the control operation in the test run mode of the above embodiment, FIG. 5 is a flowchart showing an example of the control operation during air conditioning operation of the above embodiment, and FIG. FIG. 1 is an air-conditioned room, 2 is a central blower means, 4 is a heat exchanger, 5 is a blower, 6 is a main duct, 7 is a branch duct, 8 is a blower adjustment means, 9 is a damper, 14 is a room thermostat, 19 is an air volume 20 is a damper control means, 21 is an air volume measuring means, 22 is a blower control means, and 23 is an arithmetic processing means. In addition, in the figures, the same reference numerals refer to the same or corresponding parts. Figure Q - Modification Figure Procedure Amendment Amount (Voluntary) 1. Indication of the case Plain Patent Application No. 123656 2. Name of the invention Air conditioner 3. Person making the amendment Representative tL+x Kimoriya 5. Amendment (1) Detailed description of the invention in the specification (2) Drawings 3, 6, and content of amendments (1) "Pressure" in lines 5, 8, and 11 of page 21 of the specification loss P'' is corrected as J pressure loss Pij. (2) r on page 21, lines 9, 11, and 18
P+5axJ is corrected as r P imaxj . (3) "Damper opening/closing means 20" on page 21, line 14 of the same page is corrected to "damper control means 20J." (4) Drawing 3 is corrected as shown in the attached sheet 97. Drawing after correction of catalog of attached documents. Figure 3: 1 or more copies
Claims (1)
前記送風機に接続した主ダクト及び枝ダクトを介して複
数の被空調室に送風する集中送風手段と、前記各枝ダク
トに装着され前記被空調室への冷風または温風の送風量
をダンパの開閉により調整する送風調整手段と、前記送
風調整手段のダンパの開閉を制御するダンパ制御手段と
、前記送風機からの送風量を風量検出器により検出して
実際の送風量を測定する風量測定手段と、前記風量測定
手段からの信号により実際の送風量が所定の送風量とな
るように前記送風機の回転数を制御する送風機制御手段
と、前記送風機制御手段と風量測定手段とダンパ制御手
段の各出力とにより、前記各送風調整手段の全開時の通
過風量と送風機の回転数との相関関係を演算して各枝ダ
クトの通風損失特性を演算し、さらに、その通風損失特
性とあらかじめ既知のダンパの開閉度合によるダンパの
通風損失特性とを合成して、前記各送風調整手段の通過
風量とダンパの開閉度合と送風機の回転数との相関関係
を演算して求め、空気調和運転時に、各送風調整手段に
ついて必要な送風圧力差のうちの最大値を求め、該送風
圧力差最大値のとき各送風調整手段が要求風量となる各
ダンパの開閉度にダンパ制御手段を制御し、送風調整手
段の要求風量の総和に対する前記送風圧力差最大値とな
る送風機回転数に送風機制御手段を制御する演算処理手
段とを備えたことを特徴とする空気調和装置。A centralized blower means that includes a blower and a heat exchanger and blows the air heat-exchanged by the heat exchanger to a plurality of air-conditioned rooms via a main duct and branch ducts connected to the blower, and is attached to each of the branch ducts. an air blowing adjustment means for adjusting the amount of cold air or hot air blown to the air-conditioned room by opening and closing a damper; a damper control means for controlling opening and closing of a damper of the air blowing adjusting means; an air volume measuring means for detecting with a detector and measuring the actual air volume; and a blower control means for controlling the rotational speed of the blower so that the actual air volume becomes a predetermined air volume based on a signal from the air volume measuring means. Based on the outputs of the blower control means, air volume measuring means, and damper control means, the correlation between the passing air volume and the rotational speed of the blower when each of the blower adjustment means is fully opened is calculated, and the ventilation loss of each branch duct is calculated. The characteristics are calculated, and the ventilation loss characteristics are combined with the ventilation loss characteristics of the damper due to the previously known degree of opening and closing of the damper, and the amount of air passing through each of the ventilation adjustment means, the degree of opening and closing of the damper, and the rotation speed of the blower are calculated. During air conditioning operation, the maximum value of the required air blow pressure differences for each air blow adjustment means is determined, and when the air blow pressure difference is the maximum value, each air blow adjustment means has the required air volume. It is characterized by comprising arithmetic processing means for controlling the damper control means to the degree of opening and closing of the damper, and for controlling the blower control means to the number of revolutions of the blower at which the blower pressure difference with respect to the total air volume required by the blower adjusting means is the maximum value. air conditioner.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2123656A JP2884705B2 (en) | 1990-05-14 | 1990-05-14 | Air conditioner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2123656A JP2884705B2 (en) | 1990-05-14 | 1990-05-14 | Air conditioner |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0420737A true JPH0420737A (en) | 1992-01-24 |
| JP2884705B2 JP2884705B2 (en) | 1999-04-19 |
Family
ID=14866020
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2123656A Expired - Fee Related JP2884705B2 (en) | 1990-05-14 | 1990-05-14 | Air conditioner |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2884705B2 (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09210434A (en) * | 1996-01-31 | 1997-08-12 | Yamatake Honeywell Co Ltd | Vav control system |
| JPH1047738A (en) * | 1996-07-30 | 1998-02-20 | Takasago Thermal Eng Co Ltd | Vav type air conditioning system and its control method |
| CN114467763A (en) * | 2022-04-18 | 2022-05-13 | 大牧人机械(胶州)有限公司 | Self-adaptive control method for different types of permanent magnet fans of pig house |
| EP4145052A1 (en) * | 2021-09-03 | 2023-03-08 | Atlantic Climatisation et Traitement d'Air Industrie | Self-calibration of a ventilation system |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102018104510A1 (en) * | 2018-02-28 | 2019-08-29 | Vaillant Gmbh | Method for determining the individual room air volume flows in central ventilation systems and for the pneumatic adjustment of ventilation systems |
-
1990
- 1990-05-14 JP JP2123656A patent/JP2884705B2/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09210434A (en) * | 1996-01-31 | 1997-08-12 | Yamatake Honeywell Co Ltd | Vav control system |
| JPH1047738A (en) * | 1996-07-30 | 1998-02-20 | Takasago Thermal Eng Co Ltd | Vav type air conditioning system and its control method |
| EP4145052A1 (en) * | 2021-09-03 | 2023-03-08 | Atlantic Climatisation et Traitement d'Air Industrie | Self-calibration of a ventilation system |
| FR3126753A1 (en) * | 2021-09-03 | 2023-03-10 | Atlantic Climatisation Et Traitement D'air Industrie | Self-calibration of a ventilation installation |
| CN114467763A (en) * | 2022-04-18 | 2022-05-13 | 大牧人机械(胶州)有限公司 | Self-adaptive control method for different types of permanent magnet fans of pig house |
| CN114467763B (en) * | 2022-04-18 | 2022-07-08 | 大牧人机械(胶州)有限公司 | Self-adaptive control method for different types of permanent magnet fans of pig house |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2884705B2 (en) | 1999-04-19 |
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