JP2009300033A - Controller for air-conditioning secondary pump - Google Patents

Controller for air-conditioning secondary pump Download PDF

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JP2009300033A
JP2009300033A JP2008156656A JP2008156656A JP2009300033A JP 2009300033 A JP2009300033 A JP 2009300033A JP 2008156656 A JP2008156656 A JP 2008156656A JP 2008156656 A JP2008156656 A JP 2008156656A JP 2009300033 A JP2009300033 A JP 2009300033A
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air
conditioning
setting function
pressure setting
secondary pump
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JP4691582B2 (en
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Kazuo Nakai
一夫 中井
Koichi Ito
伊藤　　公一
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Toenec Corp
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Abstract

<P>PROBLEM TO BE SOLVED: To provide a controller for an air-conditioning secondary pump capable of carrying out proper air-conditioning control, and having a large energy saving effect. <P>SOLUTION: The controller for an air-conditioning secondary pump is equipped with an air-conditioning secondary pump 2 carrying out variable speed rotation to vary a delivery pressure of water for air-conditioning, a temperature detector 8 detecting a temperature of an air-conditioning target place, an air-conditioning temperature controller 9 for setting an air-conditioning temperature of the air-conditioning target place, a pressure detector 6 detecting the delivery pressure of the water for air-conditioning delivered from the air-conditioning secondary pump 2, and a pressure setting function calculating part 12 calculating a pressure setting function indicating relationship between a flow rate and the delivery pressure of the water for air-conditioning supplied from the air-conditioning secondary pump 2 in response to a deviation between an air-conditioning set temperature and an actual temperature of the air-conditioning target place. A pressure control part 3 controlling the air-conditioning secondary pump 2 controls the delivery pressure of the water for air-conditioning delivered from the air-conditioning secondary pump 2 on the basis of the pressure setting function (within a range of an upper limit pressure setting function and a lower limit setting function) calculated in the pressure setting function calculating part 12. By this, proper air-conditioning control and energy saving can be realized. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

本発明は、例えば空調対象室内に設置された空調機に対して空調二次ポンプから配管を通して冷房用冷水もしくは暖房用温水の空調用水を供給する際に前記空調用水の吐出圧力を制御する空調二次ポンプの制御装置に関するものである。   The present invention, for example, controls the discharge pressure of the air-conditioning water when supplying air-conditioning water from the secondary air-conditioning pump through the pipe to the air-conditioner installed in the air-conditioning target room. The present invention relates to a control device for the next pump.

従来、例えば空調対象室内に設置された空調機に対して空調二次ポンプから配管を通して冷房用冷水もしくは暖房用温水の空調用水を供給する際、前記空調用水の流量に応じて前記空調二次ポンプの吐出圧力設定値が決められる所謂、推定末端圧制御が行われており、予め決定した一つの圧力設定関数に基づいて空調用水の吐出圧力を制御し、必要とされる空調用水の流量を確保している（非特許文献１参照）。   Conventionally, for example, when supplying cooling air for cooling or warming water for heating through a pipe from an air conditioning secondary pump to an air conditioner installed in an air conditioning target room, the air conditioning secondary pump according to the flow rate of the air conditioning water The so-called estimated terminal pressure control is performed to determine the discharge pressure set value of the air, and the discharge pressure of the air-conditioning water is controlled based on one predetermined pressure setting function to ensure the required flow rate of the air-conditioning water. (See Non-Patent Document 1).

しかしながら、従来のように、推定末端圧制御で予め決定した一つの圧力設定関数に基づく空調二次ポンプからの空調用水の吐出圧力が制御されると、空調機の運転状態よって変化する必要圧力を確保するために圧力設定関数を常に高めの吐出圧力となるように決定しなければならず、必要な吐出圧力が小さい場合には、必要以上の吐出圧力で運転することになり、過剰なポンプ圧力となって余分なエネルギーを使用することになるという問題が生じる。逆に、圧力設定関数が必要な吐出圧力に対して低めの吐出圧力となるように決定されてしまうと、上記空調用水の流量不足となって冷暖房が効き難くなり、適正な空調制御が出来ないという問題が生じる。
財団法人 省エネルギーセンターの「ポンプ 選びかたとシステムの改善 佐藤良男 高田勉 著作 １９９３年６月１２日発行参照」 However, when the discharge pressure of the water for air conditioning from the air conditioning secondary pump based on one pressure setting function determined in advance by the estimated terminal pressure control is controlled as in the prior art, the required pressure that changes depending on the operating state of the air conditioner is reduced. In order to ensure that the pressure setting function must always be determined to be a higher discharge pressure, if the required discharge pressure is small, the pump will be operated at an excessive discharge pressure, resulting in excessive pump pressure. This causes a problem that extra energy is used. On the other hand, if the pressure setting function is determined to be a lower discharge pressure than the required discharge pressure, the air conditioning water flow becomes insufficient and air conditioning becomes difficult to perform, and proper air conditioning control cannot be performed. The problem arises.
"Energy Saving Center" Improvement of pump selection and system Yoshio Sato Tsutomu Takada Copyright issue issued on June 12, 1993

そこで本発明では、適正な空調制御ができるとともに省エネルギー効果の大きな空調二次ポンプの制御装置を提供することを解決すべき課題とするものである。   Therefore, in the present invention, it is an object to be solved to provide a control device for an air conditioning secondary pump that can perform appropriate air conditioning control and has a large energy saving effect.

上記課題は、特許請求の範囲の欄に記載した空調二次ポンプの制御装置により解決することができる。
請求項１に記載した空調二次ポンプの制御装置によれば、可変速回転して前記空調用水の吐出圧力を可変する空調二次ポンプと、空調対象場所の温度を検出する温度検出器と、空調対象場所の空調温度を設定するための空調温度調節器と、前記空調二次ポンプから吐出される前記空調用水の吐出圧力を検出する圧力検出器と、前記空調対象場所の空調設定温度と実際の温度との偏差に応じて前記空調二次ポンプから供給する前記空調用水の流量と吐出圧力との関係を表す圧力設定関数を、予め定めた上限圧力設定関数と下限圧力設定関数の範囲内で演算する圧力設定関数演算手段とを備えており、圧力制御手段は、圧力設定関数演算手段で演算された前記圧力設定関数に基づいて空調二次ポンプから吐出される前記空調用水の吐出圧力を制御することによって、適正な空調制御と省エネルギーとを実現することができる。 The above problem can be solved by the control device for the air conditioning secondary pump described in the appended claims.
According to the control device for an air-conditioning secondary pump according to claim 1, an air-conditioning secondary pump that rotates at a variable speed to vary the discharge pressure of the air-conditioning water, a temperature detector that detects the temperature of the air-conditioning target place, An air-conditioning temperature controller for setting an air-conditioning temperature of the air-conditioning target location, a pressure detector for detecting a discharge pressure of the air-conditioning water discharged from the air-conditioning secondary pump, an air-conditioning set temperature and the actual air-conditioning target location A pressure setting function representing a relationship between the flow rate of the air-conditioning water supplied from the air-conditioning secondary pump and the discharge pressure in accordance with a deviation from the temperature of the air-conditioner is within a range between a predetermined upper limit pressure setting function and a lower limit pressure setting function. Pressure setting function calculating means for calculating, and the pressure control means controls the discharge pressure of the air conditioning water discharged from the air conditioning secondary pump based on the pressure setting function calculated by the pressure setting function calculating means. By Rukoto, it is possible to realize a proper air-conditioning control and energy conservation.

請求項２に記載した空調二次ポンプの制御装置によれば、前記圧力設定関数演算手段は、前記空調対象場所のそれぞれで設定された空調温度と実際の温度との偏差として、冷房時には（実際の温度―空調温度設定値）を計算するとともに、暖房時には（空調温度設定値―実際の温度）を計算し、所定時間間隔でその時刻における上記偏差の最大値を監視するとともに、その最大値が予め定めた第１の判定基準温度偏差を超えた場合に、前記上限圧力設定関数と下限圧力設定関数の範囲内で吐出圧力設定値を高くする方向に前記圧力設定関数を変更するための演算をするとともに、前記最大値が前記第１の判定基準温度偏差よりも低い第２の判定基準温度偏差を下回った場合に、前記吐出圧力設定値が低くなる方向に前記圧力設定関数を変更することができる。   According to the control device for an air-conditioning secondary pump according to claim 2, the pressure setting function calculating means calculates the deviation between the air-conditioning temperature set at each of the air-conditioning target locations and the actual temperature during cooling (actual (Air-conditioning temperature setting value) and (Air-conditioning temperature setting value-Actual temperature) during heating, and the maximum value of the deviation at the time is monitored at a predetermined time interval. An operation for changing the pressure setting function in a direction to increase the discharge pressure setting value within the range of the upper limit pressure setting function and the lower limit pressure setting function when a predetermined first determination reference temperature deviation is exceeded. In addition, when the maximum value falls below a second determination reference temperature deviation that is lower than the first determination reference temperature deviation, the pressure setting function is changed so that the discharge pressure set value decreases. It is possible.

請求項３に記載の空調二次ポンプの制御装置によれば、前記圧力設定関数演算手段は、演算される圧力設定関数及びその可変範囲を規定する上限圧力設定関数、下限圧力設定関数として、空調用水の予め定めた一組の流量最大値と吐出圧力最大値に対して、前記それぞれの演算される圧力設定関数及び設定される上限圧力設定関数、下限圧力設定関数それぞれに上記流量最大値を代入したときの値が常に吐出圧力最大値となる関数を演算設定することができる。   According to the control device for an air conditioning secondary pump according to claim 3, the pressure setting function calculating means includes an air conditioning air pressure as an upper limit pressure setting function and a lower limit pressure setting function that define a calculated pressure setting function and a variable range thereof. For the predetermined set of maximum flow value and discharge pressure maximum value for water, substitute the above maximum flow value into the calculated pressure setting function, upper limit pressure setting function, and lower limit pressure setting function, respectively. It is possible to calculate and set a function in which the value at this time is always the discharge pressure maximum value.

本発明によれば、適正な空調が出来るとともに省エネルギー効果の大きな空調制御を行うことが出来るという効果がある。   According to the present invention, there is an effect that it is possible to perform proper air conditioning and to perform air conditioning control with a large energy saving effect.

次に、本発明の実施の形態について説明する。
図１において、図示していない空調用熱源から冷房用冷水もしくは暖房用温水の空調用水を、例えばオフィスの各部屋に設けられている空調機（１〜Ｎ）に吐出送水する空調二次ポンプ２を圧力制御するために、圧力制御部３が設けられている。
図１に示すように、空調二次ポンプ２は図示していないモータにより駆動されるもので、このモータはインバータ４により可変速駆動されるものである。
空調二次ポンプ２から吐出された空調用水を空調機（１〜Ｎ）に送水するための配管５が設けられており、配管５の途上には、空調二次ポンプ２から吐出された空調用水の吐出圧力を検出する圧力検出器６が設けられている。また、空調機（１〜Ｎ）を経由した空調用水の流量を検出するための流量検出器７が設けられており、流量検出器７で流量が検出された空調用水は上記の空調用熱源に戻る。 Next, an embodiment of the present invention will be described.
In FIG. 1, an air conditioning secondary pump 2 that discharges and supplies air-conditioning water for cooling or heating air from an air-conditioning heat source (not shown) to, for example, air conditioners (1 to N) provided in each room of an office. In order to control the pressure, a pressure control unit 3 is provided.
As shown in FIG. 1, the air conditioning secondary pump 2 is driven by a motor (not shown), and this motor is driven at a variable speed by an inverter 4.
A pipe 5 for supplying the air-conditioning water discharged from the air-conditioning secondary pump 2 to the air conditioner (1 to N) is provided, and the air-conditioning water discharged from the air-conditioning secondary pump 2 is provided along the pipe 5. A pressure detector 6 for detecting the discharge pressure is provided. Moreover, the flow rate detector 7 for detecting the flow rate of the air-conditioning water via the air conditioner (1 to N) is provided, and the air-conditioning water whose flow rate is detected by the flow rate detector 7 is used as the air-conditioning heat source. Return.

オフィスの各部屋には室温を検出する室温検出器（温度検出器）８が設けられており、その温度検出信号が温度調節器９に出力される。温度調節器９は、その部屋の空調温度を設定するためのものであるとともに、その空調温度設定信号は、室温検出器８による温度検出信号とともに圧力設定関数演算部１２に出力される。また、温度調節器９は、その空調温度設定信号と室温検出器８による温度検出信号に基づいて、ＰＩＤ制御等により各空調機の出口側に取り付けられている二方弁１０の開度を調節する。尚、空調機が稼動していることを検出するための空調機稼動検出器１１が各空調機（１〜Ｎ）に付属的に取り付けられている。また、図１に示した圧力設定関数演算部１２は、後述するように、上記オフィスの各部屋における温度調節器９において設定された空調設定温度と実際の室温との偏差に基づいて後述の圧力設定関数を演算する。   Each room in the office is provided with a room temperature detector (temperature detector) 8 for detecting the room temperature, and the temperature detection signal is output to the temperature controller 9. The temperature controller 9 is for setting the air conditioning temperature of the room, and the air conditioning temperature setting signal is output to the pressure setting function calculation unit 12 together with the temperature detection signal from the room temperature detector 8. The temperature controller 9 adjusts the opening degree of the two-way valve 10 attached to the outlet side of each air conditioner by PID control or the like based on the air conditioning temperature setting signal and the temperature detection signal from the room temperature detector 8. To do. An air conditioner operation detector 11 for detecting that the air conditioner is operating is attached to each air conditioner (1 to N) as an accessory. Further, as will be described later, the pressure setting function calculation unit 12 shown in FIG. 1 performs the pressure described later based on the deviation between the air conditioning set temperature set in the temperature controller 9 in each room of the office and the actual room temperature. Calculate the setting function.

図２は、圧力設定関数演算部１２の演算による圧力設定関数を含む空調二次ポンプ２の運転制御に関る各種の特性曲線を示したものである。
図２において、圧力設定関数の（１）と（２）は、上記オフィスの各部屋の温度調節器９において設定された空調設定温度と実際の室温との偏差に基づいて演算される圧力設定関数の可変範囲を表す上限及び下限の特性曲線で、空調二次ポンプ２から吐出される空調用水の圧力と流量との関係を示したものである。圧力設定関数演算部１２は、所定時間間隔毎に圧力設定関数（１）と（２）の間となる圧力設定関数を演算したうえ、そのときの空調用水の流量検出値に基づく圧力設定値を計算する機能を有している。尚、圧力設定関数（１）は少ないエネルギーで空調二次ポンプ２を稼動させることができるが、配管５や各空調機の熱交換器コイル、各空調機の出口側に設けられている二方弁１０などの空調用水が通る経路の流水抵抗によっては、空調用水の流量が不足する場合がある。逆に、圧力設定関数（２）は、流量不足が生じない十分な吐出圧力で空調二次ポンプ２から空調用水を供給することができるが、上記流水抵抗の状態によっては空調二次ポンプ２の吐出圧力が過剰となって、エネルギーの消費量が過大となる。従って、上記オフィスの各部屋における温度調節器９の空調設定温度と実際の室温との偏差に応じて、空調用水の流量不足の有無を確認しながら、圧力設定関数演算部１２が下限圧力設定関数（１）と上限圧力設定関数（２）の間で圧力設定関数を変化させるように演算すれば、適正な空調効果を得ることができるとともに、省エネルギーを図ることができる。
尚、図２において、ポンプ特性曲線ＳＴ１，ＳＴ２は、回転数制御による空調二次ポンプ２の回転数特性曲線を示している。また、システム抵抗（１）と（２）は、上述のように配管５や各空調機の熱交換器コイル、各空調機の出口側に設けられている二方弁１０などの空調用水が通る経路の流水抵抗を示しており、これは流量毎の空調二次ポンプ２の必要圧力も示している。システム抵抗（１）は、空調機（１〜Ｎ）の全機が稼動し、全ての二方弁１０が全開の状態で流量を変化させた場合の抵抗曲線を示している。また、システム抵抗（２）は、空調機（１〜Ｎ）の一部のみが稼動した場合の抵抗曲線の一例を示している。 FIG. 2 shows various characteristic curves related to the operation control of the air conditioning secondary pump 2 including the pressure setting function calculated by the pressure setting function calculation unit 12.
In FIG. 2, pressure setting functions (1) and (2) are pressure setting functions calculated based on the deviation between the air conditioning set temperature set in the temperature controller 9 of each room of the office and the actual room temperature. The upper limit and lower limit characteristic curves representing the variable range of the air conditioner show the relationship between the pressure and flow rate of the air conditioning water discharged from the air conditioning secondary pump 2. The pressure setting function calculation unit 12 calculates a pressure setting function between the pressure setting functions (1) and (2) at predetermined time intervals, and calculates a pressure setting value based on the detected flow rate of the air-conditioning water at that time. Has a function to calculate. Although the pressure setting function (1) can operate the air conditioning secondary pump 2 with less energy, the pipe 5 and the heat exchanger coil of each air conditioner and the two sides provided on the outlet side of each air conditioner Depending on the flow resistance of the path through which the air-conditioning water passes, such as the valve 10, the flow rate of the air-conditioning water may be insufficient. Conversely, the pressure setting function (2) can supply the air-conditioning water from the air-conditioning secondary pump 2 at a sufficient discharge pressure that does not cause a shortage of flow rate. However, depending on the state of the flow resistance, the pressure setting function (2) The discharge pressure becomes excessive, and the energy consumption becomes excessive. Therefore, the pressure setting function calculator 12 checks the lower limit pressure setting function while checking whether the air conditioning water flow is insufficient or not according to the deviation between the air conditioning set temperature of the temperature controller 9 and the actual room temperature in each room of the office. By calculating so as to change the pressure setting function between (1) and the upper limit pressure setting function (2), it is possible to obtain an appropriate air conditioning effect and to save energy.
In FIG. 2, pump characteristic curves ST <b> 1 and ST <b> 2 indicate rotational speed characteristic curves of the air conditioning secondary pump 2 by rotational speed control. In addition, the system resistances (1) and (2) pass through the air-conditioning water such as the pipe 5, the heat exchanger coil of each air conditioner, and the two-way valve 10 provided on the outlet side of each air conditioner as described above. The flow resistance of the path is shown, which also shows the required pressure of the air conditioning secondary pump 2 for each flow rate. The system resistance (1) shows a resistance curve when all the air conditioners (1 to N) are operating and the flow rate is changed with all the two-way valves 10 fully open. Moreover, system resistance (2) has shown an example of the resistance curve when only a part of air conditioners (1-N) operate | moves.

以上、説明した各種の特性曲線に基づいて圧力制御部３が空調二次ポンプ２を制御する場合、冷房時の空調対象室の温度偏差を（室内の実際の温度―空調温度設定値）とすると、温度偏差が大きい室は冷房不足となっている。これを解消するためには、予め第１の判定基準温度偏差Ｔ１を設定し、各室の温度偏差の最大値がＴ１より大きければ圧力設定関数演算部１２は、圧力設定関数を現在の状態から徐々に下限圧力設定関数（１）から上限圧力設定関数（２）の方向に変える。これによって、圧力制御部３は空調二次ポンプ２の回転数を増加させ、空調用水の流量を増加させることによって、冷水の流量不足を解消させる。逆に、各室の温度偏差の最大値が予め設定した第２の判定基準温度偏差Ｔ２（＜Ｔ１）よりも小さい場合は、冷房不足と判定されることがなく、圧力設定関数演算部１２は、圧力設定関数を現在の状態から徐々に上限圧力設定関数（２）から下限圧力設定関数（１）の方向に変えるため、圧力制御部３は空調二次ポンプ２の回転数を減少させ、空調用水の流量を少なくさせることによって、省エネルギーを図る。尚、各室の温度偏差の最大値がＴ１とＴ２の間にある場合は、圧力設定関数演算部１２は、現在の圧力設定関数を変化させない。
暖房時にも上記冷房時と同様の制御をすることにより、適正な空調が得られるともに、省エネルギー効果を得ることができる。 As described above, when the pressure control unit 3 controls the air-conditioning secondary pump 2 based on the various characteristic curves described above, if the temperature deviation of the air-conditioning target room during cooling is (actual indoor temperature-air-conditioning temperature set value) A room with a large temperature deviation is undercooled. In order to eliminate this, the first determination reference temperature deviation T1 is set in advance, and if the maximum value of the temperature deviation of each chamber is larger than T1, the pressure setting function calculation unit 12 changes the pressure setting function from the current state. Gradually change from the lower limit pressure setting function (1) to the upper limit pressure setting function (2). As a result, the pressure control unit 3 increases the number of rotations of the air conditioning secondary pump 2 and increases the flow rate of the air conditioning water, thereby eliminating the shortage of the cold water flow rate. Conversely, if the maximum value of the temperature deviation of each chamber is smaller than the preset second determination reference temperature deviation T2 (<T1), it is not determined that the cooling is insufficient, and the pressure setting function calculation unit 12 In order to gradually change the pressure setting function from the current state in the direction from the upper limit pressure setting function (2) to the lower limit pressure setting function (1), the pressure control unit 3 reduces the rotation speed of the air conditioning secondary pump 2 and performs air conditioning. Save energy by reducing the flow rate of water. When the maximum value of the temperature deviation of each chamber is between T1 and T2, the pressure setting function calculation unit 12 does not change the current pressure setting function.
Appropriate air conditioning can be obtained and an energy saving effect can be obtained by performing the same control as in the cooling operation during heating.

圧力設定関数演算部１２は、演算される圧力設定関数及びその可変範囲を規定する上限圧力設定関数（２）、下限圧力設定関数（１）として、空調用水の予め定めた一組の流量最大値と吐出圧力最大値に対して、それぞれの演算される圧力設定関数及び設定される上限圧力設定関数（２）、下限圧力設定関数（１）それぞれに上記流量最大値を代入したときの値が常に吐出圧力最大値となる関数を演算設定する。   The pressure setting function calculation unit 12 uses a predetermined set of flow maximum values for air-conditioning water as the upper limit pressure setting function (2) and the lower limit pressure setting function (1) that define the calculated pressure setting function and its variable range. And the discharge pressure maximum value, the values when the above flow rate maximum values are assigned to the calculated pressure setting function and the upper limit pressure setting function (2) and lower limit pressure setting function (1) are always set. Calculate and set the function for the maximum discharge pressure.

尚、上記冷暖房制御を実行中に圧力設定関数が上限圧力設定関数（２）に達した状態で、各室の温度偏差の最大値が一定時間を超えても第１の判定基準温度偏差Ｔ１未満にならない場合、空調機の不具合等が生じている可能性があり、この制御状態を継続すると、省エネルギーにならない。従って、このような場合は警報等により空調設備管理者に知らせ、必要に応じて、不具合可能性のある空調機の室温偏差を圧力設定関数演算部１２による演算から除外した形で制御をする。   In the state where the pressure setting function has reached the upper limit pressure setting function (2) during execution of the air conditioning control, even if the maximum value of the temperature deviation of each chamber exceeds a certain time, it is less than the first judgment reference temperature deviation T1. If not, there is a possibility that an air conditioner malfunction or the like has occurred, and if this control state is continued, it will not save energy. Therefore, in such a case, the air conditioner manager is notified by an alarm or the like, and the control is performed in such a manner that the room temperature deviation of the air conditioner that may be defective is excluded from the calculation by the pressure setting function calculation unit 12 as necessary.

空調二次ポンプを制御して適正な空調と省エネルギー効果が得られるシステム系統図である。It is a system distribution diagram in which proper air conditioning and energy saving effect are obtained by controlling the air conditioning secondary pump. 圧力設定関数演算部の演算による圧力設定関数を含む空調二次ポンプの運転制御に関る各種の特性曲線を示したものである。The various characteristic curves regarding the operation control of the air-conditioning secondary pump containing the pressure setting function by the calculation of a pressure setting function calculating part are shown.

符号の説明Explanation of symbols

１〜Ｎ 空調機
２ 空調二次ポンプ
３ 圧力制御部
４ インバータ
５ 配管
６ 圧力検出器
７ 流量検出器
８ 室温検出器（温度検出器）
９ 温度調節器
１０ 二方弁
１１ 空調機稼動検出器
１２ 圧力設定関数演算部 1 to N air conditioner 2 air conditioning secondary pump 3 pressure control unit 4 inverter 5 piping 6 pressure detector 7 flow rate detector 8 room temperature detector (temperature detector)
9 Temperature controller 10 Two-way valve 11 Air conditioner operation detector 12 Pressure setting function calculator

Claims (3)

空調機に対して空調二次ポンプから冷房用冷水もしくは暖房用温水の空調用水を供給する際に前記空調用水の必要な流量を供給するための吐出圧力を制御する空調二次ポンプの制御装置であって、
可変速回転して前記空調用水の吐出圧力を可変する空調二次ポンプと、空調対象場所の温度を検出する温度検出器と、空調対象場所の空調温度を設定するための空調温度調節器と、前記空調二次ポンプから吐出される前記空調用水の吐出圧力を検出する圧力検出器と、前記空調対象場所の空調設定温度と実際の温度との偏差に応じて前記空調二次ポンプから供給する前記空調用水の流量と吐出圧力との関係を表す圧力設定関数を予め定めた上限圧力設定関数と下限圧力設定関数の範囲内で演算する圧力設定関数演算手段と、圧力設定関数演算手段で演算された前記圧力設定関数に基づいて前記空調二次ポンプから吐出される前記空調用水の吐出圧力を制御する圧力制御手段とを備えたことを特徴とする空調二次ポンプの制御装置。 A control device for an air conditioning secondary pump that controls a discharge pressure for supplying a necessary flow rate of the air conditioning water when supplying air conditioning water from the air conditioning secondary pump to the air conditioning machine. There,
An air-conditioning secondary pump that rotates at a variable speed to vary the discharge pressure of the air-conditioning water, a temperature detector that detects the temperature of the air-conditioning target location, and an air-conditioning temperature controller that sets the air-conditioning temperature of the air-conditioning target location; A pressure detector for detecting a discharge pressure of the air-conditioning water discharged from the air-conditioning secondary pump; and supplying from the air-conditioning secondary pump according to a deviation between an air-conditioning set temperature and an actual temperature of the air-conditioning target location The pressure setting function calculating means for calculating the pressure setting function representing the relationship between the flow rate of air conditioning water and the discharge pressure within the range of the predetermined upper limit pressure setting function and the lower limit pressure setting function, and the pressure setting function calculating means A control device for an air conditioning secondary pump, comprising pressure control means for controlling a discharge pressure of the air conditioning water discharged from the air conditioning secondary pump based on the pressure setting function. 請求項１に記載の空調二次ポンプの制御装置において、前記圧力設定関数演算手段は、前記空調対象場所のそれぞれで設定された空調温度と実際の温度との偏差として、冷房時には（実際の温度―空調温度設定値）を計算するとともに、暖房時には（空調温度設定値―実際の温度）を計算し、所定時間間隔でその時刻における上記偏差の最大値を監視するとともに、その最大値が予め定めた第１の判定基準温度偏差を超えた場合に、前記上限圧力設定関数と下限圧力設定関数の範囲内で吐出圧力設定値を高くする方向に前記圧力設定関数を変更するための演算をするとともに、前記最大値が前記第１の判定基準温度偏差よりも低い第２の判定基準温度偏差を下回った場合に、前記吐出圧力設定値が低くなる方向に前記圧力設定関数を変更するための演算をすることを特徴とする空調二次ポンプの制御装置。   2. The control device for an air conditioning secondary pump according to claim 1, wherein the pressure setting function calculation means calculates a deviation between an air conditioning temperature set at each of the air conditioning target locations and an actual temperature during cooling (actual temperature). -Air conditioning temperature setting value) is calculated, and during heating (air conditioning temperature setting value-actual temperature) is calculated, the maximum value of the deviation at the time is monitored at predetermined time intervals, and the maximum value is determined in advance. When the first determination reference temperature deviation is exceeded, an operation is performed to change the pressure setting function in a direction to increase the discharge pressure setting value within the range of the upper limit pressure setting function and the lower limit pressure setting function. When the maximum value falls below a second judgment reference temperature deviation that is lower than the first judgment reference temperature deviation, the pressure setting function is changed in such a direction that the discharge pressure set value decreases. Control device for an air conditioning secondary pump, characterized in that the calculation of the fit. 請求項１又は２に記載の空調二次ポンプの制御装置において、前記圧力設定関数演算手段は、前記演算される圧力設定関数及びその可変範囲を規定する上限圧力設定関数、下限圧力設定関数として、空調用水の予め定めた一組の流量最大値と吐出圧力最大値に対して、前記それぞれの演算される圧力設定関数及び設定される上限圧力設定関数、下限圧力設定関数それぞれに上記流量最大値を代入したときの値が常に吐出圧力最大値となる関数を演算設定することを特徴とする空調二次ポンプの制御装置。   In the control device for an air conditioning secondary pump according to claim 1 or 2, the pressure setting function calculation means includes the calculated pressure setting function and an upper limit pressure setting function that defines a variable range thereof, and a lower limit pressure setting function. With respect to a predetermined set of maximum flow rate value and discharge pressure maximum value for air conditioning water, the above maximum flow rate value is set for each of the calculated pressure setting function, the set upper pressure setting function, and the lower limit pressure setting function. A control device for an air-conditioning secondary pump, characterized in that a function in which a value when substituted is always a discharge pressure maximum value is calculated and set.
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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2013148244A (en) * 2012-01-17 2013-08-01 Aisin Seiki Co Ltd Cooling system
CN112254320A (en) * 2020-10-22 2021-01-22 重庆大学 Adaptive variable differential pressure control method for air conditioner variable flow water system based on AI

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH03195851A (en) * 1989-12-26 1991-08-27 Yokokawa Johnson Controls Kk Feeding pressure control system for air conditioner
JPH0875223A (en) * 1994-09-09 1996-03-19 Shinryo Corp Control system for air conditioning
JP2003314862A (en) * 2002-04-22 2003-11-06 Takenaka Komuten Co Ltd Electricity storage/heat accumulation type air conditioning method and system
JP2005299980A (en) * 2004-04-08 2005-10-27 Yamatake Corp Water supply control device, and its method
JP2006266566A (en) * 2005-03-23 2006-10-05 Shin Nippon Air Technol Co Ltd Operation control method for two pump system heating source facility

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH03195851A (en) * 1989-12-26 1991-08-27 Yokokawa Johnson Controls Kk Feeding pressure control system for air conditioner
JPH0875223A (en) * 1994-09-09 1996-03-19 Shinryo Corp Control system for air conditioning
JP2003314862A (en) * 2002-04-22 2003-11-06 Takenaka Komuten Co Ltd Electricity storage/heat accumulation type air conditioning method and system
JP2005299980A (en) * 2004-04-08 2005-10-27 Yamatake Corp Water supply control device, and its method
JP2006266566A (en) * 2005-03-23 2006-10-05 Shin Nippon Air Technol Co Ltd Operation control method for two pump system heating source facility

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2013148244A (en) * 2012-01-17 2013-08-01 Aisin Seiki Co Ltd Cooling system
CN112254320A (en) * 2020-10-22 2021-01-22 重庆大学 Adaptive variable differential pressure control method for air conditioner variable flow water system based on AI
CN112254320B (en) * 2020-10-22 2021-08-24 重庆大学 Adaptive variable differential pressure control method for air conditioner variable flow water system based on AI

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