JPH07175528A - Secondary cold and hot water feeding pressure controller - Google Patents
Secondary cold and hot water feeding pressure controllerInfo
- Publication number
- JPH07175528A JPH07175528A JP5317649A JP31764993A JPH07175528A JP H07175528 A JPH07175528 A JP H07175528A JP 5317649 A JP5317649 A JP 5317649A JP 31764993 A JP31764993 A JP 31764993A JP H07175528 A JPH07175528 A JP H07175528A
- Authority
- JP
- Japan
- Prior art keywords
- hot water
- secondary cold
- feed water
- water pressure
- pressure
- 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.)
- Pending
Links
Landscapes
- Air Conditioning Control Device (AREA)
- Feedback Control In General (AREA)
- Control Of Fluid Pressure (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、２次冷温水の送水圧力
を制御する２次冷温水送水圧力制御装置に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a secondary cold / hot water feed pressure control device for controlling the feed pressure of secondary cold / hot water.
【０００２】[0002]
【従来の技術】従来の技術は冷温水配管の末端に位置す
る空調機に対する末端圧力を補償する為常に高目の送水
圧力の設定値となっている。2. Description of the Related Art In the prior art, in order to compensate for the terminal pressure to the air conditioner located at the terminal of the hot and cold water pipe, the set value of the water supply pressure is always higher.
【０００３】[0003]
【発明が解決しようとする課題】送水圧力の設定値を一
定としているがこの値が有利となるのは全ての空調機の
バルブが全開となった場合に限られる。このため負荷が
少ない場合には必要以上に高い圧力で送水していること
になりポンプ動力の浪費となっている。Although the set value of the water supply pressure is constant, this value is advantageous only when the valves of all air conditioners are fully opened. For this reason, when the load is small, the water is being sent at a higher pressure than necessary, which wastes pump power.
【０００４】本発明の目的は、この送水圧力の設定値を
負荷に応じて適正に変更することによりポンプの回転数
を下げ省エネを図ることのできる２次冷温水送水圧力制
御装置を提供することにある。An object of the present invention is to provide a secondary cold / hot water water supply pressure control device capable of reducing the rotational speed of the pump to save energy by appropriately changing the set value of the water supply pressure according to the load. It is in.
【０００５】[0005]
【課題を解決するための手段】本発明の２次冷温水送水
圧力制御装置は、２次冷温水を送り出す２次冷温水ポン
プと、送り出された２次冷温水の送水圧力を計測する圧
力センサと、２次冷温水ポンプの回転数を制御するイン
バータと、圧力センサによって計測した送水圧力と目標
値との偏差に対応した回転制御信号をインバータに出力
する送水圧力コントローラと、２次冷温水によって暖冷
房する空調機と、室内空気の温度を計測する温度計と、
温度計からの温度信号によって空調機の２次冷温水回路
に設けられた制御弁の開度を調節すると共に、温度信号
が目標温度を満足せず、かつ制御弁の開度が設定値以上
の場合、送水圧力コントローラに対する目標値を上昇さ
せる空調機コントローラとを具備したことを特徴とす
る。A secondary cold / hot water feed pressure control device of the present invention includes a secondary cold / hot water pump for feeding the secondary cold / hot water, and a pressure sensor for measuring the feed pressure of the fed secondary cold / hot water. And an inverter that controls the rotation speed of the secondary cold / hot water pump, a water pressure controller that outputs a rotation control signal corresponding to the deviation between the water pressure measured by the pressure sensor and the target value to the inverter, and the secondary cold / hot water An air conditioner for heating and cooling, a thermometer for measuring the temperature of indoor air,
The opening of the control valve provided in the secondary cold / hot water circuit of the air conditioner is adjusted by the temperature signal from the thermometer, the temperature signal does not satisfy the target temperature, and the opening of the control valve is equal to or larger than the set value. In this case, an air conditioner controller for increasing the target value for the water pressure controller is provided.
【０００６】[0006]
【作用】本発明の２次冷温水送水圧力制御装置において
は、２次冷温水ポンプによって２次冷温水を送り出し、
送り出された２次冷温水の送水圧力を圧力センサで計測
し、２次冷温水ポンプの回転数をインバータによって制
御し、圧力センサによって計測した送水圧力に対応した
回転制御信号をインバータに出力し、２次冷温水によっ
て暖冷房する空調機と室内空気の温度を計測し、室内温
度の湿度を計測し、温度計からの温度信号または湿度計
からの湿度信号によって空調機の回路に設けられた制御
弁の開度を調節することを特徴とする。In the secondary cold / hot water feed pressure control device of the present invention, the secondary cold / hot water is sent out by the secondary cold / hot water pump,
The pressure of the secondary cold / hot water sent out is measured by a pressure sensor, the rotation speed of the secondary cold / hot water pump is controlled by an inverter, and a rotation control signal corresponding to the water pressure measured by the pressure sensor is output to the inverter. The temperature of the air conditioner and the room air that are warmed and cooled by the secondary cold / hot water is measured, the humidity of the room temperature is measured, and the control provided in the circuit of the air conditioner by the temperature signal from the thermometer or the humidity signal from the hygrometer. It is characterized by adjusting the opening of the valve.
【０００７】[0007]
【実施例】次に本発明による２次冷温水送水圧力制御装
置の一実施例を説明する。図１において、８は２次冷温
水を送り出す２次冷温水ポンプ、１は送り出された２次
冷温水の送水圧力を計測する圧力センサ、２は２次冷温
水ポンプ８の回転数を制御するインバータ、３は圧力セ
ンサ１によって計測した送水圧力に対応した回転制御信
号をインバータ２に出力するデジタル調節器、４は２次
冷温水によって暖冷房する空調機と室内空気の温度を計
測する温度示センサ、５は室内温度の湿度を計測する湿
度センサ、７は温度センサ４からの温度信号または湿度
センサ５からの湿度信号によって空調機ＡＨＵの回路に
設けられた制御弁６の開度を調節するデシタル調節器で
あり、送水圧力を計測するセンサと、２次冷温水ポンプ
の回転数を制御するインバータ２と、送水圧力によりイ
ンバータへの信号を制御するコントローラ（ＤＤＣ）
と、空調機の温・湿度制御に用いる温度センサ４と、湿
度センサ５と制御弁６及びコントローラ（ＤＤＣ）とか
らなる圧力制御システムである。EXAMPLE Next, an example of the secondary cold / hot water feed pressure control device according to the present invention will be described. In FIG. 1, 8 is a secondary cold / hot water pump that sends out the secondary cold / hot water, 1 is a pressure sensor that measures the sending pressure of the sent secondary cold / hot water, and 2 is the rotation speed of the secondary cold / hot water pump 8. The inverter 3 is a digital controller that outputs a rotation control signal corresponding to the water supply pressure measured by the pressure sensor 1 to the inverter 2, and 4 is a temperature indicator that measures the temperature of the air conditioner and the room air that are heated and cooled by the secondary cold / hot water. A sensor 5 is a humidity sensor for measuring the humidity of the room temperature, and a reference numeral 7 is a temperature signal from the temperature sensor 4 or a humidity signal from the humidity sensor 5 for adjusting the opening degree of a control valve 6 provided in the circuit of the air conditioner AHU. A digital adjuster, a sensor that measures the water supply pressure, an inverter 2 that controls the number of revolutions of the secondary cold / hot water pump, and a controller that controls a signal to the inverter according to the water supply pressure ( DC)
And a temperature sensor 4 used for temperature / humidity control of an air conditioner, a humidity sensor 5, a control valve 6 and a controller (DDC).
【０００８】そして、空調機制御に用いる温度センサ
４、湿度センサ５及び制御弁６の全開信号によりＤＤＣ
にて送水圧力不足を判断し、送水圧力制御ＤＤＣに伝送
する、これにより送水圧力制御ＤＤＣの圧力設定値を変
更することにより、ポンプの回転数を増減する。このよ
うなシステムにより負荷に応じた送水圧力制御を行うこ
とができ省エネルギーを図ることができる。The temperature sensor 4, the humidity sensor 5 and the control valve 6 used for controlling the air conditioner are turned on by the full open signal.
The water supply pressure is determined to be insufficient and is transmitted to the water supply pressure control DDC. By changing the pressure set value of the water supply pressure control DDC, the rotation speed of the pump is increased or decreased. With such a system, the water supply pressure can be controlled according to the load, and energy can be saved.
【０００９】即ち、送水圧力を検出する圧力センサ１と
２次冷温水ポンプの回転数を制御するインバータ２と送
水圧力によりインバータ２への信号を制御するデシタル
調節器と、空調機の制御に用いる温度センサ４と湿度セ
ンサ５と制御弁６、デジタル調節器７とからなる。That is, the pressure sensor 1 for detecting the water supply pressure, the inverter 2 for controlling the rotational speed of the secondary cold / hot water pump, the digital controller for controlling the signal to the inverter 2 by the water supply pressure, and the control for the air conditioner are used. It comprises a temperature sensor 4, a humidity sensor 5, a control valve 6 and a digital controller 7.
【００１０】制御弁６が冷水バルブの場合、温度センサ
４または湿度センサ５の値が設定値より高い状態が継続
しなおかつバルブ全開の場合、デジタル調節器７はその
空調機に対して送水圧力が不足していると判断する。そ
の情報を伝送によりデジタル調節器３に送る。デジタル
調節器３は複数のデジタル調節器からの信号を加算し送
水圧力制御の設定値を高くする。加算の値が大きければ
設定値もそれに比例して高くなる。加算値が小さくなっ
てくればそれにつれ設定値も下げ加算値が０になれば設
定値は初期値に戻す。If the control valve 6 is a cold water valve, and the value of the temperature sensor 4 or the humidity sensor 5 remains higher than the set value, and the valve is fully opened, the digital controller 7 sends the water pressure to the air conditioner. Judge that there is a shortage. The information is transmitted to the digital controller 3. The digital controller 3 adds the signals from the plurality of digital controllers to increase the set value for water pressure control. If the value of the addition is large, the set value also becomes proportionally high. If the added value becomes smaller, the set value is also decreased, and if the added value becomes 0, the set value is returned to the initial value.
【００１１】これにより実際の負荷に応じた送水圧力の
カスケード制御を行うことができる。As a result, the water supply pressure can be cascade-controlled according to the actual load.
【００１２】[0012]
【発明の効果】本発明により、送水圧力制御の設定値は
一定であったため、末端部での圧力補償の為高めの設定
とする必要がなく、無駄な動力エネルギーを消費せず、
末端圧を補償しながら省エネを図ることが可能となる。According to the present invention, since the set value of the water pressure control is constant, it is not necessary to set a high value for pressure compensation at the end portion, and wasteful power energy is not consumed.
It is possible to save energy while compensating for the terminal pressure.
【図１】本発明の一実施例を示す送水圧力制御システム
の構成図である。FIG. 1 is a configuration diagram of a water supply pressure control system showing an embodiment of the present invention.
１ 圧力センサ ２ インバータ ３ デジタル調節器 ４ 温度センサ ５ 湿度センサ ６ 制御弁 ７ デジタル調節器 1 Pressure Sensor 2 Inverter 3 Digital Controller 4 Temperature Sensor 5 Humidity Sensor 6 Control Valve 7 Digital Controller
Claims (1)
と、送り出された前記２次冷温水の送水圧力を計測する
圧力センサと、前記２次冷温水ポンプの回転数を制御す
るインバータと、前記圧力センサによって計測した前記
送水圧力と目標値との偏差に対応した回転制御信号を前
記インバータに出力する送水圧力コントローラと、前記
２次冷温水によって暖冷房する空調機と、室内空気の温
度を計測する温度計と、前記温度計からの温度信号によ
って前記空調機の２次冷温水回路に設けられた制御弁の
開度を調節すると共に、温度信号が目標温度を満足せ
ず、かつ制御弁の開度が設定値以上の場合、送水圧力コ
ントローラに対する目標値を上昇させる空調機コントロ
ーラと、を具備してなる２次冷温水送水圧力制御装置。1. A secondary cold / hot water pump for sending secondary cold / hot water, a pressure sensor for measuring the sending pressure of the sent secondary cold / hot water, and an inverter for controlling the rotation speed of the secondary cold / hot water pump. , A water supply pressure controller that outputs a rotation control signal corresponding to a deviation between the water supply pressure measured by the pressure sensor and a target value to the inverter, an air conditioner that heats and cools by the secondary cold and hot water, and an indoor air temperature And a temperature signal from the thermometer is used to adjust the opening of a control valve provided in the secondary hot and cold water circuit of the air conditioner, and the temperature signal does not satisfy the target temperature and is controlled. A secondary cold / hot water feed pressure control device comprising: an air conditioner controller that raises a target value for the feed pressure controller when the opening of the valve is equal to or larger than a set value.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5317649A JPH07175528A (en) | 1993-12-17 | 1993-12-17 | Secondary cold and hot water feeding pressure controller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5317649A JPH07175528A (en) | 1993-12-17 | 1993-12-17 | Secondary cold and hot water feeding pressure controller |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH07175528A true JPH07175528A (en) | 1995-07-14 |
Family
ID=18090503
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5317649A Pending JPH07175528A (en) | 1993-12-17 | 1993-12-17 | Secondary cold and hot water feeding pressure controller |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH07175528A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007205604A (en) * | 2006-01-31 | 2007-08-16 | Tokyo Electric Power Co Inc:The | Air conditioning system |
| JP2013204833A (en) * | 2012-03-27 | 2013-10-07 | Sanki Eng Co Ltd | Heating medium piping system |
-
1993
- 1993-12-17 JP JP5317649A patent/JPH07175528A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007205604A (en) * | 2006-01-31 | 2007-08-16 | Tokyo Electric Power Co Inc:The | Air conditioning system |
| JP4651551B2 (en) * | 2006-01-31 | 2011-03-16 | 東京電力株式会社 | Air conditioning system |
| JP2013204833A (en) * | 2012-03-27 | 2013-10-07 | Sanki Eng Co Ltd | Heating medium piping system |
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