200941170 六、發明說明： 【發明所屬之技術領域】 本發月係關於控制流經流路中流體流量的流量控制系 【先前技術】 以往，作爲這種流量控制系統，有控制流向空調機的 熱媒體（冷熱水）>充量的空調控制系統（例如，參照專利 文獻1、2) ^在該空調控制系統中，在流向空調機的冷熱 水的供給通路設置流量控制閥，驅動該流量控制閥内的閥 體’來調節冷熱水所流經的流路的開閉量。 通常’流量控制閥，除了從空調控制裝置接收設定開 度k號之外’還接收閥開度感測器測量的閥體的實際開度 信號’控制閥體的驅動以使設定開度信號和實際開度信號 一致。將這樣的流量控制閥稱爲開度控制型流量控制閥。 另一方面’近年來，提出了使流量控制閥自身附加用 於檢測流經流路的流體的實際流量的手段，自空調控制裝 置係將相當於以往的設定開度信號的設定流量信號輸送到 流量控制閥，控制閥體的驅動以使於流量控制閥接收的設 定流量信號和測量到的實際流量一致。將這樣的流量控制 閥稱爲流量控制型流量控制閥。 進而，在流量控制閥中，也有例如專利文獻3所示， 組合開度控制型和流量控制型，可以選擇開度控制和流量 控制中的任一種的流量控制閥。 200941170 專利文獻1 :日本特開平11—21Π91號公報 專利文獻2:日本特開平〇6— 272935號公報 專利文獻3 :日本特開2〇〇3 — 232658號公報 L發明内容】 但是’在上述以往的流量控制型的流量控制閥中測 量實際流量的手段產生異常，就不能測量實際流量，或者 ❹測量的實際流量不正確時，由於已不能再進行正確的流量 控制’故不得不停止系統。 另卜即使疋上述可以選擇開度控制和流量控制中的 任一種的流量控制間，由於不能自動地進行控制選擇，只 能人工進行，所以存在如果維護人員不知道檢測實際流量 的手段産生異常就不能處理，在維護人員到達現場之前亦 不能處理的問題。 ^發明是爲了解決這樣的課題而做出的其目的在 ❹；’ β供-種在不能再進行流量控制時， 到開度控制，不停止系統，動轉移 只遇仃控制的流量控制系統。 實現這樣的目的，本發明的流量控制系統，設置 測手Γ其：調節流體所流經的流路的開閉量；闕開度檢 其檢測該閥體的實際開度；實際流量測量手段， 其測量流經上述流路的流體的實 % μ m m 置，實際&量正常異 常判斷手奴，其對由該實際流量測 流量的正常/異常進行判斷； 流體實際 -r ^ S ^ 飞刀換手段’其在該實際 W 常判斷手段判斷爲異常時，從選擇輸出由上述 5 200941170 實際流量測量手段測㈣流體的實際流量作爲被控制量的 模式切換爲選擇輸出由上述閥開度檢測手錄測的間體的 實際開度作隸控制量的m㈣何，其將該模式 切換手段選擇輸出的被控制量作爲輸X，控制上述閥體二 驅動，以使該被控制量與被賦予上述閥體的控制量的設定 值一致。 利用本發明，如果判斷由實際流量測量手段測量的流 體的實際流量爲異常，就從選擇輸出由實際流量測量手段 測量的流體的實際流量作爲被控制量（反饋量）的模式切 換爲選擇輸出由閥開度檢測手段檢測的閥體的實際開度作 爲被控制量（反饋量）的模式，控制閥體的驅動以使該選 擇輸出的被控制量（閥體的實際開度）與對閥體提供的控 制量的設定值一致。由此，在判斷實際流量爲異常時，能 夠自動地由之前的流量控制切換爲開度控制。 在本發明中，由實際流量測量手段測量的流體的實際 流量的正常/異常的判斷，可以根據實際流量測量手段所 測量的流體的實際流量的值進行判斷，或根據實際流量測 量手段測量流體的實際流量的測量過程中所使用的參數值 判斷’或者根據實際流量測量手段測量流體的實際流量的 測量過程中所使用的參數的收集/無法收集來進行判斷。 例如’由實際流量測量手段測量的流體實際流量的值 超過預先設定的異常閾值時’判斷實際流量爲異常。另外， 在使用流路中的閥體的上游側壓力值或下游側壓力值作爲 實際流量測量手段測量流體的實際流量的測量過程中所使 200941170 用的參數時，其壓力值超過預先設定的 通信異常不能收集時，判斷實際流量爲異常。，或由於 另外，在本發明中，實際流量正常異常判 判斷結果從異常恢復正常時，若從選擇輸出由^中的 手段檢測的閥體的實際開度作量 汗-檢測 擇輸出由實際流量測量手段測量的 馬選 栌制晋的描斗、， 體的實際 量作爲被 控_模式，便能在能正常得到實際流量時，即 的開度控制自動地恢復爲流量， 〇 ^ , 通吊’由於流量控制 ;=制更能夠精確地控制流體的流量，所以在能夠正 常传到實際流量時，最好從開度控制恢復爲流量控制。 利用本發明，如果實際流量測量手段測量的流體的實 際流量被判斷爲異常，就從選擇輸出由實際流量測量手段 7量的流體的實際流量作爲被控制量的模式切換爲選擇輸 出由閥開度檢測手段檢測的閥體的實際開度作爲被控制量 的模式’控制閥體的驅動以使該選擇輸出的被控制量（閥 〇 體的實際開度）與對閥體提供的控制量的設定值一致，在 Τ能再進行流量控料，自動地轉移到開度㈣，能在不 停止系統之情形下，繼續進行控制。 【實施方式】 以下，根據附圖對本發明進行詳細的說明。圖丨是表 不應用了本發明的流量控制系統的空調控制系統的一個例 子的儀器配備圖。 在圖1中，1爲生成冷熱水的熱源機，2爲輸送熱源機 7 200941170 1生成的冷熱水的泵，3爲混合來自多個熱源機】的冷熱水 的出水集水管，4爲出水管路’5爲接受從出水集水管3經 由出水管路4輸送來的冷熱水的供給的空調機，6爲回水管 路，7爲將空調機5中熱交換後經由回水管路6輪送回來的 冷熱水送回的回水集水管，8爲對從出水集水管3向空調機 5提供冷熱水的流量進行控制的流量控制閥，9爲測量從空 調機5輸出的供氣溫度的供氣溫度感測器’ 1〇爲空調控制 裝置’ U爲空調機5的盤管，12爲送風機。 在該空調控制系統中’由泵2壓送並由熱源機i加熱 的冷熱水’在出水集水管3中被混合’通過出水管路4被 提供給空調機5,通過空調機5後成為回水經由回水管路6 返回到回水集水管7，再由泵2壓送，循環以上通路。例如， 在冷氣運轉時，在熱源機丨中生成冷水，該冷水循環。在 暖氣運轉時，在熱源機丨中生成熱水，該熱水循環。 空調機5，將從控制對象區域返回到空調控制系統中的 空氣（回氣）和外氣的混合氣，以冷熱水通過的盤管丨丨冷 卻或者加熱，以該經冷卻或者加熱的空氣作爲供氣，通過 送風機12送入控制對象區域。空調機5，是在冷氣運轉和 暖氣運轉中使用共通的盤管u的單一形式之空調機。 圖2是表示該空調控制系統中的流量控制閥$的主要 部分的圖。流量控制閥8，具備：管路13,其形成通過空 調機5的冷熱水流入的流路；閥體14，其調節流經該管路 13的流體的流量（流路的開閉量）；馬達15，其驅動該閥 體μ ;閥開度檢測器16，其檢測閥體14的實際開度作爲 200941170 閥開度6» pV;顯示部17;通信介面18、19，其中繼空調控 制裝置10和監視裝置（圖中未示）之間的通信；設計流量 記憶部20 ;實際流量異常閾值記憶部21 ;異常塵力間值記 憶部22 ; 1次側壓力感測器23，其檢測管路13内的閥體 14的上游側的流體的壓力，作爲1次壓力p 1 ; 2次側壓力 感測器24,其檢測管路13内的閥體14的下游側的流體的 壓力，作爲2次壓力P2;以及處理部25。 處理部2 5 ’具備.閥控制部2 5 A、實際流量測量部2 5 B、 ^ 實際流量正常異常判斷部25C、控制模式切換部25D、和控 制模式通知部25E。實際流量正常異常判斷部25C，具備實 際流量值監視部25C1、壓力值監視部25C2、和通信異常監 視部25C3。 實際流量測量部25B，以來自1次側壓力感測器23的 流體的1次壓力p卜來自2次侧壓力感測器24的流體的2 次壓力P2、和來自閥開度檢測器16的閥開度❷…爲輸入， 根據這些參數計算流動於管路13的流體的實際流量9尺作 爲實際流量的測量值。 控制模式切換部25D具備模式切換開關SW1。模式切 換開關swi，根據來自實際流量正常異常判斷部25c的正 常/異常的判斷結果，控制其開關的連接模式。關於該模 式切換開關SW1的控制在後面進行描述，如果來自實際流 量正常異常判斷部25C的判斷結果爲正常，採用與接點A ^連接的連接模<，如果判斷來自實際流量正常異常判斷 4 25C的判斷結果為異常，採用與接點b側連接的連接模 9 200941170 :。在初始狀態中’模式切換開關則，採用與接點A側 連接的連接模式。 該處理部25中的閥控制部25A、實際流量測量部25B、 實際流量正常異常判斷部25C、控制模式切換部25D和控 制模式通知部25E能夠以根據程式的cpu處理功能來實現。 並且，在本實施形態中，於設計流量記憶冑2〇，儲存 著對該流量控制閥B規定的操作上的設計流量qd。另外， 於實際流量異常閾值記憶部21儲存著對以實際流量測量部 25B測量的、流經管路i3的流體的實際流量#值，規定 其正常範圍的上下限的上限間值QtM和下限閣值Qth2。另 外’於異常壓力間值記憶部22中儲存著針對由t次側壓力 感測器23檢測的1次壓力ρι值的上限閾值”化丨和下限閾 值Plth2’以及針對由2次側壓力感測器24檢測的2次壓 力P2值的上限閾值p2thl和下限閾值p2th2。 另外’通信異常監視部25C3,監視是否能夠收集由工 次側壓力感測器23檢測的t次壓力ρι和由2次侧壓力感 測器24檢測的2次壓力P2 ’在由於壓力感測器產生故障或 者通信線被切斷等情況，至少不能收集任意一方的壓力時 (非收集時）判斷爲通信異常，將控制模式切換部25D的 模式切換開關SW1切換爲與接點B側連接的連接模式。 以下’結合處理部25中各部分的功能，說明對該流量 控制閥8中的特徵處理動作。並且，在本例子中，爲了將 控制對象區域的溫度保持在設定溫度，假設由空調控制裝 置10將選取控制量的設定值爲Μ戰的值的控制設定指 200941170 令’給予流量控制閥8。 (正常時） &在流量控制閥8中，來自空調控制裝置1〇的控制設定 指令（〇〜1〇0%)透過通信介面18，發至閥控制部η。 此時控制模式切換部25D中的模式切換開關缩，採用 與接點A側連接的連接模式。 ❹ ❹ 因此’來自實際流量測量部加的實際 控制量(反饋量)被輸入到闕控制部25A中。另外，：:被 控制模式通知部25E，根據控制模式切換部加中的實巴 =Γ爲:::控制部25A的選擇輪出狀態，判斷現在的： “A。’、’，L控制模式，並將該判斷結果通知閥控制部 並且’控制模式通知部25E，在顯示部17上顯示現在 的控制模式爲流量控制模式， 制裝置i。和監視裝置輸出透過通“面19向空調控 閥控制部25A，接受來白200941170 VI. Description of the invention: [Technical field to which the invention pertains] This is a flow control system for controlling the flow of a fluid flowing through a flow path [Prior Art] In the past, as such a flow control system, there is control of heat flowing to an air conditioner. Media (hot and cold water) > charge air conditioning control system (for example, refer to Patent Documents 1 and 2). In the air conditioning control system, a flow rate control valve is provided in a supply passage for the hot and cold water flowing to the air conditioner, and the flow rate control is driven. The valve body in the valve adjusts the amount of opening and closing of the flow path through which the hot and cold water flows. Usually, the 'flow control valve', in addition to receiving the set opening degree k from the air conditioning control device, 'also receives the actual opening degree signal of the valve body measured by the valve opening degree sensor' to control the driving of the valve body to set the opening degree signal and The actual opening signal is consistent. Such a flow control valve is referred to as an opening degree control type flow control valve. On the other hand, in recent years, it has been proposed to add a flow control valve itself to the actual flow rate of the fluid flowing through the flow path, and the self-air-conditioning control device transmits a set flow rate signal corresponding to the conventional set opening degree signal to A flow control valve controls the actuation of the valve body to align the set flow signal received by the flow control valve with the measured actual flow. Such a flow control valve is referred to as a flow control type flow control valve. Further, in the flow rate control valve, for example, as shown in Patent Document 3, a combination of the opening degree control type and the flow rate control type, and a flow rate control valve of any one of the opening degree control and the flow rate control can be selected. Japanese Patent Laid-Open No. Hei. No. Hei. No. Hei. No. Hei. No. Hei. No. Hei. No. Hei. In the flow control type flow control valve, the means for measuring the actual flow rate is abnormal, and the actual flow rate cannot be measured, or when the actual flow rate measured is incorrect, since the correct flow control can no longer be performed, the system has to be stopped. In addition, even if the above-mentioned flow control can select either one of the opening control and the flow control, since the control selection cannot be automatically performed, it can only be performed manually, so there is an abnormality if the maintenance personnel do not know the means for detecting the actual flow. Cannot handle problems that cannot be handled before maintenance personnel arrive at the site. The invention has been made to solve such problems. The purpose of the invention is to control the flow control system that does not stop the system when the flow control is no longer possible, and does not stop the system. To achieve such a purpose, the flow control system of the present invention is provided with a measuring hand that adjusts the opening and closing amount of the flow path through which the fluid flows; the opening degree detects the actual opening degree of the valve body; the actual flow measuring means, the measuring flow thereof Through the actual % μ mm of the fluid in the above flow path, the actual & normal abnormality judges the slave, which judges the normal/abnormality of the flow measured by the actual flow; the fluid actual -r ^ S ^ flying knife change means' When the actual W-determination means determines that the abnormality is abnormal, the mode selects the actual flow rate of the fluid measured by the above-mentioned 5 200941170 actual flow rate measuring means (4), and switches the mode to the selected amount by the valve opening degree detection. The actual opening degree of the inter-body is the m (four) of the control quantity, and the mode-switching means selects the output controlled quantity as the output X, and controls the valve body two driving so that the controlled quantity and the valve body are given The set values of the control quantities are the same. According to the present invention, if it is judged that the actual flow rate of the fluid measured by the actual flow measuring means is abnormal, the mode is switched from the mode in which the actual flow rate of the fluid measured by the actual flow measuring means is selected as the controlled amount (feedback amount) to the selected output. The actual opening degree of the valve body detected by the valve opening degree detecting means is a mode of the controlled amount (feedback amount), and the driving of the valve body is controlled such that the controlled amount of the selected output (the actual opening degree of the valve body) and the valve body The set values of the provided control quantities are the same. Therefore, when it is judged that the actual flow rate is abnormal, it is possible to automatically switch from the previous flow rate control to the opening degree control. In the present invention, the normal/abnormal judgment of the actual flow rate of the fluid measured by the actual flow measuring means can be judged according to the value of the actual flow rate of the fluid measured by the actual flow measuring means, or the fluid can be measured according to the actual flow measuring means. The parameter value judgment used in the measurement process of the actual flow rate is judged by the collection/uncollectability of the parameters used in the measurement process of measuring the actual flow rate of the fluid according to the actual flow measurement means. For example, when the value of the actual flow rate of the fluid measured by the actual flow measuring means exceeds a predetermined abnormal threshold value, it is judged that the actual flow rate is abnormal. In addition, when the parameter for 200941170 is used in the measurement of the actual flow rate of the fluid using the upstream side pressure value or the downstream side pressure value of the valve body in the flow path, the pressure value exceeds the preset communication. When the abnormality cannot be collected, the actual traffic is judged to be abnormal. Or, in addition, in the present invention, when the actual flow abnormality judgment result is returned from the abnormality to the normal state, if the actual opening degree of the valve body detected by the means of selecting the output is measured, the sweat is detected and the output is selected from the actual flow rate. The measurement method measures the horse's strokes, and the actual amount of the body as the controlled _ mode, can automatically return to the flow when the actual flow can be obtained normally, ie, ,^, hang 'Because the flow control; = system can more accurately control the flow of the fluid, it is better to return from the opening control to the flow control when it can normally pass to the actual flow. According to the present invention, if the actual flow rate of the fluid measured by the actual flow measuring means is judged to be abnormal, the actual flow rate of the fluid selected by the actual flow measuring means 7 is selected as the mode of the controlled amount to be switched to the selected output by the valve opening degree. The actual opening degree of the valve body detected by the detecting means is used as the mode of the controlled amount to control the driving of the valve body such that the controlled amount of the selected output (the actual opening degree of the valve body) and the control amount provided to the valve body are set. The values are the same. After the flow control is performed, the flow rate is automatically transferred to the opening degree (4), and the control can be continued without stopping the system. [Embodiment] Hereinafter, the present invention will be described in detail with reference to the accompanying drawings. Fig. 丨 is an instrumental diagram showing an example of an air conditioning control system to which the flow control system of the present invention is not applied. In Fig. 1, 1 is a heat source machine for generating hot and cold water, 2 is a pump for conveying hot and cold water generated by the heat source unit 7 200941170 1, 3 is a water collecting water pipe for mixing hot and cold water from a plurality of heat source machines, and 4 is an outlet pipe. The road '5 is an air conditioner that receives the supply of hot and cold water supplied from the water outlet pipe 3 through the water outlet pipe 4, 6 is a return water pipe, and 7 is a heat transfer after the air conditioner 5 is returned via the return water pipe 6 The return water collecting pipe returned by the hot and cold water, 8 is a flow control valve for controlling the flow rate of the hot and cold water supplied from the water collecting water pipe 3 to the air conditioner 5, and 9 is a gas supply for measuring the supply air temperature output from the air conditioner 5. The temperature sensor '1〇 is the air conditioning control device' U is the coil of the air conditioner 5, and 12 is the blower. In the air conditioning control system, 'the hot and cold water 'pressured by the pump 2 and heated by the heat source unit i' is mixed in the outlet water collecting pipe 3, and is supplied to the air conditioner 5 through the water discharge line 4, and becomes the air conditioner 5 and becomes back. The water is returned to the return water collecting pipe 7 via the return water pipe 6, and is pumped by the pump 2 to circulate the above passage. For example, during cold air operation, cold water is generated in the heat source unit, and the cold water is circulated. During the heating operation, hot water is generated in the heat source unit, and the hot water is circulated. The air conditioner 5 cools or heats the air (return air) and the external air which are returned from the control target area to the air conditioning control system, and cools or heats the coil through which the hot and cold water passes, using the cooled or heated air as the air conditioner The air supply is sent to the control target area by the blower 12. The air conditioner 5 is a single-type air conditioner that uses a common coil u in the air-conditioning operation and the heating operation. Fig. 2 is a view showing a main portion of a flow rate control valve $ in the air conditioning control system. The flow control valve 8 includes a line 13 that forms a flow path through which the hot and cold water of the air conditioner 5 flows, and a valve body 14 that regulates a flow rate of the fluid flowing through the line 13 (amount of opening and closing of the flow path); 15. The valve body μ is driven; the valve opening degree detector 16 detects the actual opening degree of the valve body 14 as 200941170 valve opening degree 6»pV; the display portion 17; the communication interface 18, 19, and the relay air conditioning control device 10 Communication with monitoring device (not shown); design flow memory unit 20; actual flow rate abnormal threshold memory unit 21; abnormal dust force value storage unit 22; primary side pressure sensor 23, detection line The pressure of the fluid on the upstream side of the valve body 14 in the first step is the primary pressure p 1 ; the secondary side pressure sensor 24 detects the pressure of the fluid on the downstream side of the valve body 14 in the line 13 as 2 Secondary pressure P2; and processing unit 25. The processing unit 2 5 ' includes a valve control unit 25 A, an actual flow rate measuring unit 2 5 B, an actual flow rate normal abnormality determining unit 25C, a control mode switching unit 25D, and a control mode notifying unit 25E. The actual flow rate normal abnormality determining unit 25C includes an actual flow rate value monitoring unit 25C1, a pressure value monitoring unit 25C2, and a communication abnormality monitoring unit 25C3. The actual flow rate measuring unit 25B uses the primary pressure p of the fluid from the primary side pressure sensor 23, the secondary pressure P2 of the fluid from the secondary side pressure sensor 24, and the secondary pressure P2 from the valve opening degree detector 16. The valve opening degree ❷... is an input, and based on these parameters, the actual flow rate of the fluid flowing through the line 13 is calculated as a measured value of the actual flow rate. The control mode switching unit 25D includes a mode switching switch SW1. The mode switching switch swi controls the connection mode of the switch based on the result of the normal/abnormal determination from the actual flow rate normal abnormality determining unit 25c. The control of the mode changeover switch SW1 will be described later. If the judgment result from the actual flow normal abnormality determination unit 25C is normal, the connection mode connected to the contact point A^ is used, and if it is judged from the actual flow normal abnormality determination 4 The judgment result of 25C is abnormal, and the connection mode 9 200941170: connected to the side of the contact b is used. In the initial state, the mode switch is connected to the contact A side. The valve control unit 25A, the actual flow rate measuring unit 25B, the actual flow rate normal abnormality determining unit 25C, the control mode switching unit 25D, and the control mode notifying unit 25E in the processing unit 25 can be realized by the cpu processing function according to the program. Further, in the present embodiment, the design flow rate qd specified for the flow rate control valve B is stored in the design flow rate memory. Further, the actual flow rate abnormality threshold value storage unit 21 stores the actual flow rate value of the fluid flowing through the line i3 measured by the actual flow rate measuring unit 25B, and defines the upper limit value QtM and the lower limit value of the upper and lower limits of the normal range. Qth2. Further, in the abnormal pressure inter-value memory unit 22, an upper limit threshold value 丨 and a lower limit threshold value Plth2' for the primary pressure ρι value detected by the t-th order pressure sensor 23 are stored, and for the secondary side pressure sensing The upper limit threshold p2th1 and the lower limit threshold p2th2 of the secondary pressure P2 value detected by the device 24. The 'communication abnormality monitoring unit 25C3 monitors whether or not the t pressure ρι detected by the work side pressure sensor 23 can be collected and the secondary side is The secondary pressure P2' detected by the pressure sensor 24 is judged to be a communication abnormality when the pressure of the pressure sensor is broken or the communication line is cut off, and at least the pressure cannot be collected (when not collected), and the control mode is set. The mode switching switch SW1 of the switching unit 25D is switched to the connection mode connected to the contact B side. Hereinafter, the function processing operation in the flow rate control valve 8 will be described in conjunction with the function of each part in the processing unit 25. Further, in this example In order to maintain the temperature of the control target area at the set temperature, it is assumed that the control setting of the value of the selected control amount by the air conditioning control device 10 is set to "200941170" Flow rate control valve 8. (Normal) & In the flow rate control valve 8, a control setting command (〇~1〇0%) from the air conditioning control unit 1A is transmitted to the valve control unit η through the communication interface 18. The mode switching switch in the control mode switching unit 25D is in the connection mode connected to the contact A side. ❹ ❹ Therefore, the actual control amount (feedback amount) added from the actual flow rate measuring unit is input to the 阙 control unit 25A. Further, the :: controlled mode notification unit 25E determines the current: "A" based on the selection rounding state of the control unit 25A in accordance with the state of the control mode switching unit: The 'L' control mode is notified to the valve control unit and the control mode notifying unit 25E, and the current control mode is displayed on the display unit 17 as the flow rate control mode to manufacture the device i. And the monitoring device output passes through the face 19 to the air conditioning control valve control unit 25A, and receives the incoming white
的控制模式爲流量控制；= 制模式通知部说的現在 ^ ^ θ 、式的通知，從設計流量記憶部20D ^出4流頁QD，將設計流量qd作爲⑽ 空調控制裝置10的控制設 值將來自 祐日,^ J x疋私令（〇〜100%)換算爲流量。 & ’向馬達15發送指令，控制閥趙14的㈣，以使換 异爲該流垔的控制設定指令 、 實際流#QR 一致。 I自實際流量測量部25B的 (異常時） 該闕體14的驅動控制中，在實際流量正常異常判斷部 200941170 25C中，對實際流量測量部25B中測量的實際流量qr的正 常/異常進行判斷。 此時，在實際流量值監視部25C1中，將來自實際流量 測量β 25B的實際流量qR的值作爲輸人，比較該實際流量 QR的值與储存在實際流量Μ間值記憶部^巾的上限閾 值Qthl和下限閾值Qth2進行比較實際流量的值沒有 位於由其上下限閾值所規定的正常範圍内的狀態持續既定 時間時，判斷實際流量QR爲異常。 在壓力值監視部25C2中，將來自i次側壓力感測器23 〇 的1次壓力P1的值和來自2次侧壓力感測器24的2次麼力 p2的值作爲輸入’比較儲存在異常壓力閾值記憶部22中的 針對1次壓力P1的上限閾值Plthl和下限閾值、針對 2次壓力P2的上限閾值P2thi和下限閾值p2th2，丨次壓力The control mode is flow control; the notification of the current ^^ θ, the formula of the system notification unit, from the design flow memory unit 20D 4 flow page QD, the design flow rate qd as (10) the control value of the air conditioning control device 10 Converted from Yuri, ^ J x疋 private order (〇~100%) into traffic. & ' sends a command to the motor 15 to control (4) of the valve 14 so that the control setting command and the actual flow #QR of the flow are identical. In the drive control of the body 14 of the actual flow rate measurement unit 25B, the actual flow rate abnormality determination unit 200941170 25C determines the normal/abnormality of the actual flow rate qr measured by the actual flow rate measurement unit 25B. . At this time, in the actual flow rate value monitoring unit 25C1, the value of the actual flow rate qR from the actual flow rate measurement β 25B is taken as the input, and the value of the actual flow rate QR is compared with the upper limit of the actual flow rate stored in the memory unit. When the threshold value Qth1 and the lower limit threshold value Qth2 are compared with each other, the value of the actual flow rate is not within the normal range defined by the upper and lower limit threshold values, and the actual flow rate QR is determined to be abnormal. In the pressure value monitoring unit 25C2, the value of the primary pressure P1 from the i-th side pressure sensor 23 和 and the value of the secondary pressure p2 from the secondary side pressure sensor 24 are stored as inputs 'in comparison'. The upper limit threshold Plthl and the lower limit threshold for the primary pressure P1 in the abnormal pressure threshold value storage unit 22, the upper limit threshold P2thi and the lower limit threshold p2th2 for the secondary pressure P2, and the secondary pressure
Pi值^次壓力PW中至少—方沒有位於由其上下限間值 所規定的正常範圍内的狀態持續既定時間時，判斷實際流 量QR爲異常β 'τι 在通信異常監視部25C3中，將來自！次侧壓力感測器 〇 23的1次壓力P1和來自2次側壓力感測器24的2次壓力 P2作爲輸入’當^欠侧壓力感測器23或者2:欠側磨力感測 器24的故障，或者通信線被切斷等的通信異常，導致不能 收集到1次麼力P1和2次壓力？2時（非收集時），判斷爲 實際流量值監視部25C1，壓力值監視部25C2，通信異 常監視部25C3，如果判斷實際流量QR爲異常便將此判 12 200941170 換部25D，將控制模式切換部25D 切換到與接點B側連接的連接模 由此，在閥控制部25A中，輸入來白M „由认， 彻八來自閥開度檢測器1 6 的實際開度0 pv作爲被控制量（反 里、汉謂重），以取代之前來 自實際流量測量部25B的實際流量QR。另外，此時，控制 模式通知部25E，根據控制模式切換部2When at least the state in which the Pi value is not within the normal range defined by the upper and lower limits is a predetermined time, the actual flow rate QR is judged to be abnormal β 'τι in the communication abnormality monitoring unit 25C3, and will come from ! The primary pressure P1 of the secondary side pressure sensor 〇23 and the secondary pressure P2 of the secondary side pressure sensor 24 are used as inputs 'When the underside pressure sensor 23 or 2: Underside friction sensor 24 failure, or communication abnormality such as communication line being cut off, resulting in failure to collect 1 time force P1 and 2 times pressure? At 2 o'clock (when not collecting), it is determined that the actual flow rate monitoring unit 25C1, the pressure value monitoring unit 25C2, and the communication abnormality monitoring unit 25C3 determine that the actual flow rate QR is abnormal, and the control unit is switched to 12 200941170. The portion 25D is switched to the connection mold connected to the contact B side. Thus, in the valve control portion 25A, the input white M is recognized, and the actual opening degree 0 pv from the valve opening degree detector 16 is controlled as The amount (inverse, heavy) is replaced by the actual flow rate QR from the actual flow rate measuring unit 25B. At this time, the control mode notifying unit 25E switches the control mode based on the control mode.
0PV對閥控制部25A的選擇轸出狀能貫不肩度 07遷擇輸出狀態，判斷現在的控制模 》、、，開度控制模式，並將該判斷結果通知閥控制部25A。 25E ’在顯示部17上顯示現在 ’並透過通信介面19向空調控 控制部25A，接受來自控制模式通知部25£的現在 的控制模式爲開度控制模式的通知，向馬達15發送指令， 控制閥體u的驅動’以使來自空調控制裝置1〇的控制設The valve control unit 25A selects the output state, determines the current control mode, and the opening degree control mode, and notifies the valve control unit 25A of the determination result. 25E 'displayed on the display unit 17 and transmitted to the air-conditioning control unit 25A through the communication interface 19, and receives the notification that the current control mode from the control mode notification unit 25 is the opening degree control mode, and transmits a command to the motor 15 to control The drive of the valve body u is used to control the air conditioner control unit 1
斷結果發送到控制模式切 中的模式切換開關SW1 式。 並且，控制模式通知部 的控制模式爲開度控制模式 制裝置10和監視裝置輸出。 定指令（〇〜100%)和來自閥開度檢測器16的實際開度θ pv —致。 由此’判斷實際流量QR異常時，自動由之前的流量控 制刀換爲開度控制，能夠不停止系統，繼續進行控制。 (從異常恢復正常） 果實際流里正常異常判斷部25。中的判斷結果從異 7復爲正常’即如果實際流量值監視部25C1，壓力值監 視口"5C2 ’通仏異常監視部25(：3中判斷結果全部爲正常， 控制模式切換部25D中的模式切換開關剛便被切換爲與 13 200941170 接點A侧連接的連接模式。 由此’在閥控制部25Α Φ，收+么& 的丨25八中，將來自實際流量測量部25B 的實際流量QR作爲被控 的夾白& 置（反饋量）輸入，以取代之前 的來自閥開度檢測器 制模式通知部25Ε，枢撼^開度ΘΡ”另外，此時，控 根據控制模式切換部25D中的實際流 量QR對閥控制部25α的、s抵& 耳際流 制模4 f “ 、選擇輸出狀態，判斷爲現在的控The result of the break is sent to the mode switch SW1 in the control mode. Further, the control mode of the control mode notification unit is the opening degree control mode device 10 and the monitoring device output. The predetermined command (〇~100%) and the actual opening degree θ pv from the valve opening detector 16 are identical. Thus, when it is judged that the actual flow rate QR is abnormal, the previous flow rate control tool is automatically changed to the opening degree control, and the control can be continued without stopping the system. (Return to normal from abnormality) The actual abnormality determining unit 25 is actually flowing. In the case of the actual flow rate monitoring unit 25C1, the pressure value monitoring port <5C2' overnight abnormality monitoring unit 25 (: 3, the determination result is all normal, and the control mode switching unit 25D is in the control mode switching unit 25D. The mode changeover switch is just switched to the connection mode connected to the contact A side of the 13 200941170. Thus, in the valve control unit 25 Α Φ, the 丨 25 八 of the y y y & will be from the actual flow rate measuring unit 25B The actual flow rate QR is used as the controlled pinch & set (feedback amount) input to replace the previous valve opening degree detector mode notification unit 25Ε, the pivoting degree ΘΡ", in addition, at this time, the control according to the control mode The actual flow rate QR in the switching unit 25D is determined by the valve control unit 25α, s & amp amp 耳 耳 、 、 、 、 、 、 、 、 、 、 、 、 选择 选择 选择
、…机制模式，將該判斷結果通知閥控制部25A。 閥控制部25A，接受來自控制模式通知部2 的控制模式爲流量控制掇彳沾β AThe mechanism mode is notified to the valve control unit 25A of the determination result. The valve control unit 25A receives the control mode from the control mode notification unit 2 as flow control ββ A
^ 制模式的通知，從設計流量記憶部20D 又U QD ’將設計流量QD的值設爲！，將來 =工調控制裝置1()的控制設定指令㈠〜_幻換算爲流 並且向馬達15發送指令，控制閥體丨4的驅動，以 使換算爲該流量的控制設定指令和來自實際流量測量部 25B的實際流量QR 一致。 由此，在能正常得到實際流量（^尺時，自動地由之前的 開度控制恢復爲流量控制。豸常，流量控制比開度控制能 夠更精確地控制流體流量。因此，在本實施形態中，在正 常得到實際流量QR時，從開度控制恢復爲流量控制。 【圖式簡單說明】 圖1是表示應用了本發明的流量控制系統的空調控制 系統的一個例子的儀器配備圖。 圖2是表示於該空調控制系統中使用的流量控制閥的 主要部分的圖。 200941170In the notification of the system mode, the value of the design flow rate QD is set from the design flow memory unit 20D and U QD '! In the future, the control setting command (1) of the adjustment control device 1 () is converted into a flow and sends a command to the motor 15 to control the driving of the valve body 4 so that the control setting command converted to the flow rate and the actual flow rate are obtained. The actual flow rate QR of the measuring unit 25B is identical. Therefore, when the actual flow rate can be normally obtained (the ruler is automatically restored to the flow rate control by the previous opening degree control), the flow rate control can control the fluid flow rate more accurately than the opening degree control. Therefore, in the present embodiment In the case where the actual flow rate QR is normally obtained, the flow rate control is restored from the opening degree control. [Schematic Description of the Drawings] Fig. 1 is an instrumental arrangement diagram showing an example of an air conditioning control system to which the flow rate control system of the present invention is applied. 2 is a view showing a main part of a flow rate control valve used in the air conditioning control system.
【主要元件符號說明】 1 熱源機 2 泵 3 出水集水管 4 出水管路 5 空調機 6 回水管路 7 回水集水管 8 流量控制閥 9 供氣溫度感測器 10 空調控制裝置 11 盤管 12 送風機 13 管路 14 閥體 15 馬達 16 閥開度檢測器 17 顯示部 18、19 通信介面 20 設計流量記憶部 21 實際流量異常閾值記憶部 22 異常壓力閾值記憶部 23 1次側壓力感測器 15 200941170 24 25 25A 25B 25C 25C1 25C2 25C3 25D 25E SW1 2次側壓力感測器 處理部 閥控制部 實際流量測量部 實際流量正常異常判斷部 實際流量值監視部 壓力值監視部 通信異常監視部 控制模式切換部 © 控制模式通知部 模式切換開關 、[Main component symbol description] 1 Heat source machine 2 Pump 3 Water supply water collection pipe 4 Water supply pipe 5 Air conditioner 6 Water return pipe 7 Water collecting pipe 8 Flow control valve 9 Air supply temperature sensor 10 Air conditioning control device 11 Coil 12 Blower 13 Piping 14 Valve body 15 Motor 16 Valve opening detector 17 Display unit 18, 19 Communication interface 20 Design flow memory unit 21 Actual flow rate abnormal threshold value memory unit 22 Abnormal pressure threshold value memory unit 23 Primary side pressure sensor 15 200941170 24 25 25A 25B 25C 25C1 25C2 25C3 25D 25E SW1 Secondary side pressure sensor processing unit Valve control unit Actual flow rate measurement unit Actual flow rate normal error determination unit Actual flow rate value monitoring unit Pressure value monitoring unit Communication error monitoring unit Control mode switching © Control mode notification unit mode switch,
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