JP2016180549A - Trial operation method of heat source machine for air conditioning - Google Patents
Trial operation method of heat source machine for air conditioning Download PDFInfo
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Abstract
【課題】 本発明の目的は、熱源機および付帯設備にダメージを与えることなく、熱源機の設定状態を確認可能な、空調用熱源機の試運転方法を提供する。
【解決手段】 本発明の試運転方法によれば、熱源機１１の中央制御ユニット１３は、冷却水入りロ温度測定器３１からの出力値４２に基づき、異常な高温度を検出したなら、図示しない外部の保守拠点へ故障信号を発報するとともに、その発報状態を図示しない表示部（ＬＥＤ等など）へ表示させる。
【選択図】図２PROBLEM TO BE SOLVED: To provide a trial operation method of an air-conditioning heat source unit capable of confirming a set state of the heat source unit without damaging the heat source unit and incidental facilities.
According to the test operation method of the present invention, if the central control unit 13 of the heat source device 11 detects an abnormally high temperature based on the output value 42 from the low-temperature measuring device 31 containing cooling water, it is not shown. A failure signal is issued to an external maintenance base, and the notification state is displayed on a display unit (such as an LED) not shown.
[Selection] Figure 2
Description
本発明は、吸収式冷凍機やターボ冷凍機などの空調用熱源機の試運転方法に関する。 The present invention relates to a trial operation method of a heat source device for air conditioning such as an absorption refrigerator or a turbo refrigerator.
一般的な熱源機は、感震器や火災警報装置に連動したインターロックが設けられるとともに、安定した運転を続けるための各種制御機能、たとえば熱源機自体を制御する温調機能や、外部付帯設備である冷却塔を制御する冷却塔制御機能などが設けられている。 General heat source equipment is provided with interlocks linked to seismic devices and fire alarm devices, and various control functions for maintaining stable operation, such as a temperature control function for controlling the heat source equipment itself, external auxiliary equipment, etc. A cooling tower control function for controlling the cooling tower is provided.
このインターロックや制御機能の中で、外部付帯設備機器との連携を取る手段は顧客ごと、設置環境ごとに異なる。 Among the interlocks and control functions, the means for linking with external incidental equipment differs for each customer and for each installation environment.
この顧客や設置環境ごとの仕様の差異は、熱源機設置時の設定作業を複雑化するとともに、誤りを起こしやすい箇所であり、設定に誤りがあった場合、直ちには影響が出なくとも後日熱源機停止などの影響が発生するものもあるため、設定および動作確認には十分な注意が必要であった。 This difference in specifications depending on the customer and installation environment complicates the setting work when installing the heat source equipment, and is a place where errors are likely to occur. Because some effects such as machine stoppage occurred, sufficient caution was required for setting and operation check.
よって従来技術では、熱源機の異常状態で運転させて、その性能低下や異常状態を検出し警報を表示することで、上記設定の確認を行うものが提案されていた（特許文献１参照）。 Therefore, the prior art has been proposed in which the above setting is confirmed by operating in an abnormal state of the heat source machine, detecting the performance degradation or abnormal state, and displaying an alarm (see Patent Document 1).
しかし、上記従来技術では、温度や圧力が上がりすぎた場合の熱源機の運転を緊急停止させるように動作試験を行うため、この動作試験により、熱源機および付帯設備にダメージを与える不都合があった。 However, in the above prior art, since the operation test is performed so that the operation of the heat source machine is stopped immediately when the temperature or pressure is excessively increased, this operation test has a disadvantage that damages the heat source machine and incidental equipment. .
本発明は上記不都合に鑑みてなされたもので、その目的は、熱源機および付帯設備にダメージを与えることなく、熱源機の設定状態を確認可能な、空調用熱源機の試運転方法を提供するにある。 The present invention has been made in view of the above inconveniences, and an object of the present invention is to provide a test operation method for an air conditioning heat source unit that can confirm the set state of the heat source unit without damaging the heat source unit and incidental facilities. is there.
本発明は上記目的を達成するため、その運転制御を行う熱源機制御盤と、熱源機制御盤内に設けられる中央制御ユニットと、冷却等からの冷却水入りロ温度測定器と、動作設定用短絡線とを備えて構成されている空調用熱源機の試運転方法において、前記冷却水入り口温度測定器の模擬異常温度信号の発生手段を設け、この発生手段からの模擬異常温度信号に基づき、前記動作設定用短絡線の設定有りの場合には、故障信号の発報指令有りの表示を行わせることを特徴とする。 In order to achieve the above object, the present invention provides a heat source unit control panel for controlling its operation, a central control unit provided in the heat source unit control panel, a temperature measuring device containing cooling water from cooling, etc., and an operation setting unit. In the test operation method of the air-conditioning heat source apparatus configured to include a short-circuit wire, a means for generating a simulated abnormal temperature signal of the cooling water inlet temperature measuring device is provided, and based on the simulated abnormal temperature signal from the generating means, When the operation setting short-circuit line is set, a display indicating that a failure signal is issued is displayed.
本発明の空調用熱源機の試運転方法によれば、熱源機および付帯設備にダメージを与えることなく、熱源機の設定状態を確認可能である。 According to the trial operation method of the air-conditioning heat source apparatus of the present invention, the set state of the heat source apparatus can be confirmed without damaging the heat source apparatus and the incidental equipment.
まず、本発明である試運転方法を適用する熱源機１１および付帯設備である冷却塔２１の構成について、図１を用いて説明する。 First, the structure of the heat source device 11 to which the trial operation method according to the present invention is applied and the cooling tower 21 as ancillary equipment will be described with reference to FIG.
ここで熱源機１１は、熱源機１１の運転制御を行う熱源機制御盤１２と、熱源機制御盤１２内に設けられる中央制御ユニット１３と、冷却水入り口温度測定器３１と、動作設定用短絡線５１とを備えて構成されている。 Here, the heat source unit 11 includes a heat source unit control panel 12 for controlling the operation of the heat source unit 11, a central control unit 13 provided in the heat source unit control panel 12, a cooling water inlet temperature measuring device 31, and an operation setting short circuit. A line 51 is provided.
さらに、冷却塔２１は、熱源機１１との間に配管される往路冷却水配管２４と、往路冷却水配管２４に設けられる冷却水用循環ポンプ２３と、熱源機１１との間に配管される復路冷却水配管２５と、冷却水出口温度測定器３２と、この冷却水出口温度測定器３２からの出力値４３に基づき冷却塔２１の運転制御指令４１を行う冷却塔制御盤２２とを備えて構成されている。 Furthermore, the cooling tower 21 is connected between the heat source device 11, the forward cooling water piping 24 that is connected to the heat source device 11, the cooling water circulation pump 23 provided in the outward cooling water piping 24, and the heat source device 11. A return cooling water pipe 25, a cooling water outlet temperature measuring device 32, and a cooling tower control panel 22 that performs an operation control command 41 of the cooling tower 21 based on an output value 43 from the cooling water outlet temperature measuring device 32 are provided. It is configured.
また、この図１において、冷却水温度に基づく運転制御は付帯設備側の冷却塔制御盤２２で行っている。 In FIG. 1, the operation control based on the cooling water temperature is performed by the cooling tower control panel 22 on the side of the incidental equipment.
さらに、前記動作設定用短絡線５１は、冷却水温度調整制御を切り換える短絡線で、配線なしの場合は、熱源機側で冷却水温度制御を行う設定状態であり、配線ありの場合は、外部設備で冷却水温度制御を行う設定状態となっており、本実施の形態では、配線ありの場合が正常な設定状態である。 Further, the operation setting short-circuit line 51 is a short-circuit line for switching the cooling water temperature adjustment control. When there is no wiring, it is a setting state in which the cooling water temperature control is performed on the heat source unit side. In this embodiment, the cooling water temperature control is performed in the facility, and in the present embodiment, the case with wiring is a normal setting state.
次に、熱源機１１および付帯設備である冷却塔２１の運転制御方法について説明する。 Next, the operation control method of the heat source unit 11 and the cooling tower 21 that is ancillary equipment will be described.
前述のように本実施の形態では、冷却塔制御盤２２で運転制御を行うため、冷却水出口温度測定器３２からの出力値４３に基づき、冷却塔制御盤２２から冷却塔４１へ運転制御指令４１を出して、冷却塔４１の駆動制御を行っている。 As described above, in the present embodiment, since the operation control is performed by the cooling tower control panel 22, an operation control command is sent from the cooling tower control panel 22 to the cooling tower 41 based on the output value 43 from the cooling water outlet temperature measuring device 32. 41 is taken out and drive control of the cooling tower 41 is performed.
また、熱源機１１の中央制御ユニット１３は、冷却水入り口温度測定器３１からの出力値４２に基づき、異常な高温度を検出したなら、図示しない外部の保守拠点へ故障信号を発報するとともに、その発報状態を図示しない表示部（ＬＥＤ等などで）へ表示し、熱源機１１の出力値を抑制するよう制御する。 If the central control unit 13 of the heat source unit 11 detects an abnormally high temperature based on the output value 42 from the cooling water inlet temperature measuring device 31, it issues a failure signal to an external maintenance base (not shown). The notification state is displayed on a display unit (not shown) (such as an LED), and the output value of the heat source unit 11 is controlled to be suppressed.
しかし、ここで配線なしの設定状態の場合は、中央制御ユニット１３は、異常な高温度を検出したなら、冷却塔２１に対して冷却水温度を下げるように、制御指令を出すが、この制御は無効となるため、そのままの状態が継続すれば、冷却水温度異常により、熱源機１１は非常停止する。 However, in the setting state where there is no wiring here, the central control unit 13 issues a control command to the cooling tower 21 so as to lower the cooling water temperature if an abnormally high temperature is detected. Becomes invalid, and if the state continues as it is, the heat source unit 11 is stopped due to a cooling water temperature abnormality.
そして配線なしの設定状態の場合は、外部の保守拠点へ故障信号の発報を行わないため、外部の保守拠点では、熱源機１１の非常停止後に異常対応を行うこととなってしまう。 In the case of a setting state where there is no wiring, a failure signal is not issued to an external maintenance base, and therefore, the external maintenance base performs an abnormality response after an emergency stop of the heat source unit 11.
よって、熱源機１１の動作設定用短絡線５１有りの設定状態の確認が重要となる。 Therefore, it is important to confirm the setting state of the heat source device 11 with the operation setting short-circuit wire 51.
以下は、新設現場などで付帯設備である冷却塔２１が据付られていない状態での、熱源機１１の動作設定用短絡線５１の設定状態を確認する試運転方法を説明する。 The following describes a test operation method for confirming the setting state of the operation setting short-circuit wire 51 of the heat source unit 11 in a state where the cooling tower 21 as ancillary equipment is not installed at a new construction site or the like.
まず、実施例１では、熱源機を制御するＰＬＣ（プログラムロジックコントローラー）などで構成される中央制御ユニット１３を、模擬故障入力発生機能を組み込んだ中央制御ユニット１４に置換えたものを図２を用いて説明する。 First, in the first embodiment, FIG. 2 is used in which the central control unit 13 composed of a PLC (program logic controller) for controlling the heat source machine is replaced with a central control unit 14 incorporating a simulated fault input generation function. I will explain.
ここで中央制御ユニット１４から模擬異常温度信号４２ａを発生させたなら、動作設定用短絡線５１有りの設定状態の場合は、中央制御ユニット１４は外部の保守拠点へ故障信号の発報指令を出し、発報状態を図示しない表示部（ＬＥＤ等などで）へ表示させる。 Here, if the simulated abnormal temperature signal 42a is generated from the central control unit 14, if the operation setting short-circuit wire 51 is present, the central control unit 14 issues a failure signal issue command to an external maintenance base. The notification state is displayed on a display unit (not shown) (such as an LED).
このように本実施例によれば、表示部を確認することで、動作設定用短絡線５１有りの設定状態であることを容易に確認できる。 As described above, according to the present embodiment, it is possible to easily confirm that the operation setting short-circuit wire 51 is present by checking the display unit.
また、表示部への表示が無ければ、動作設定用短絡線５１なしの設定状態であることを容易に確認でき、設定を行う必要があることも容易に確認できる。 Moreover, if there is no display on a display part, it can confirm easily that it is the setting state without the short circuit line 51 for operation setting, and it can also confirm easily that it is necessary to perform a setting.
次に、実施例２では、外部接続模擬故障発生装置１５から、模擬異常温度信号４４を発生させる構成としてある。 Next, in the second embodiment, the simulated abnormal temperature signal 44 is generated from the external connection simulated failure generator 15.
この場合も、模擬異常温度信号４４の発生により、動作設定用短絡線５１有りの設定状態の場合は、中央制御ユニット１３は外部の保守拠点へ故障信号の発報指令を出し、発報状態を図示しない表示部（ＬＥＤ等など）へ表示させる。 Also in this case, when the simulated abnormal temperature signal 44 is generated and the operation setting short-circuit line 51 is present, the central control unit 13 issues a failure signal notification command to an external maintenance base and displays the notification state. It is displayed on a display unit (such as an LED) not shown.
このように本実施例によれば、表示部を確認することで、動作設定用短絡線５１有りの設定状態であることを容易に確認できる。 As described above, according to the present embodiment, it is possible to easily confirm that the operation setting short-circuit wire 51 is present by checking the display unit.
また、表示部への表示が無ければ、動作設定用短絡線５１なしの設定状態であることを容易に確認でき、設定を行う必要があることも容易に確認できる。 Moreover, if there is no display on a display part, it can confirm easily that it is the setting state without the short circuit line 51 for operation setting, and it can also confirm easily that it is necessary to perform a setting.
以上のように、本発明の空調用熱源機の試運転方法によれば、熱源機および付帯設備にダメージを与えることなく、熱源機の動作設定用短絡線５１の設定状態を確認可能である。 As described above, according to the trial operation method of the air-conditioning heat source apparatus of the present invention, it is possible to confirm the setting state of the operation setting short-circuit line 51 of the heat source apparatus without damaging the heat source apparatus and incidental equipment.
１１ 熱源機
１２ 熱源機制御盤
１３ 中央制御ユニット
１４ 中央制御ユニット
１５ 外部接続模擬故障発生装置
２１ 冷却塔
２２ 冷却塔制御盤
２３ 冷却水循環ポンプ
２４ 往路冷却水配管
２５ 復路冷却水配管
３１ 熱源機用冷却水入口温度測定器
３２ 冷却塔制御用冷却水入口温度測定器
４１ 冷却塔送風機制御信号
４２ 熱源機用温度信号
４３ 冷却塔制御用温度信号
４４ 温度等擬似信号
５１ 動作設定用短絡線
11 Heat source machine 12 Heat source machine control panel 13 Central control unit 14 Central control unit 15 External connection simulated failure generator 21 Cooling tower 22 Cooling tower control panel 23 Cooling water circulation pump 24 Outbound cooling water pipe 25 Return cooling water pipe 31 Cooling for heat source machine Water inlet temperature measuring device 32 Cooling tower inlet temperature measuring device 41 for cooling tower control Cooling tower blower control signal 42 Temperature signal for heat source device 43 Temperature signal for cooling tower control 44 Simulated signal 51 such as temperature Short-circuit line for operation setting
Claims (1)
前記冷却水入りロ温度測定器の模擬異常温度信号の発生手段を設け、この発生手段からの模擬異常温度信号に基づき、前記動作設定用短絡線の設定有りの場合には、故障信号の発報指令有りの表示を行わせることを特徴とする空調用熱源機の試運転方法。 An air conditioner configured to include a heat source unit control panel that performs the operation control, a central control unit provided in the heat source unit control panel, a cooling water inlet temperature measuring device from cooling or the like, and an operation setting short-circuit line. In the trial operation method of the heat source machine for
A means for generating a simulated abnormal temperature signal of the temperature measuring device containing the cooling water is provided, and when the operation setting short-circuit line is set based on the simulated abnormal temperature signal from the generating means, a failure signal is issued. A test operation method of an air-conditioning heat source unit, characterized by displaying a command indication.
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| JP2015061141A JP2016180549A (en) | 2015-03-24 | 2015-03-24 | Trial operation method of heat source machine for air conditioning |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2021014959A (en) * | 2019-07-12 | 2021-02-12 | ダイキン工業株式会社 | Refrigerant leakage notification device and refrigeration cycle system including refrigerant leakage notification device |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2021014959A (en) * | 2019-07-12 | 2021-02-12 | ダイキン工業株式会社 | Refrigerant leakage notification device and refrigeration cycle system including refrigerant leakage notification device |
| JP7079226B2 (en) | 2019-07-12 | 2022-06-01 | ダイキン工業株式会社 | Refrigerant cycle system equipped with a refrigerant leak notification device and a refrigerant leakage notification device |
| US11982454B2 (en) | 2019-07-12 | 2024-05-14 | Daikin Industries, Ltd. | Refrigerant leakage notifying device and refrigeration cycle system including refrigerant leakage notifying device |
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