JP2783827B2 - Heating system - Google Patents
Heating systemInfo
- Publication number
- JP2783827B2 JP2783827B2 JP1032014A JP3201489A JP2783827B2 JP 2783827 B2 JP2783827 B2 JP 2783827B2 JP 1032014 A JP1032014 A JP 1032014A JP 3201489 A JP3201489 A JP 3201489A JP 2783827 B2 JP2783827 B2 JP 2783827B2
- Authority
- JP
- Japan
- Prior art keywords
- heat medium
- valve
- heat
- burner
- control device
- 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.)
- Expired - Fee Related
Links
Landscapes
- Steam Or Hot-Water Central Heating Systems (AREA)
Description
【発明の詳細な説明】 (イ)産業上の利用分野 この発明はバーナにて加熱された熱交換器の熱媒体を
複数の放熱器へポンプで循環して暖房を行う暖房装置に
関する。The present invention relates to a heating apparatus for heating by circulating a heat medium of a heat exchanger heated by a burner to a plurality of radiators by a pump.
(ロ)従来の技術 従来のこの種の暖房装置は、例えば特開昭56−133540
号公報に開示されているように、熱源機に内蔵され、バ
ーナにて加熱される熱交換器と、循環ポンプと、熱媒体
供給弁及び放熱器を有する複数の分岐路とを環状に接続
して熱媒体循環路を形成し、放熱器側の運転信号によっ
てバーナ及び循環ポンプを運転させるとともに、熱媒体
供給弁を開放させ、熱交換器の熱媒体(水または不凍液
等)を放熱器に供給して室内の暖房を行うものが知られ
ている。(B) Conventional technology A conventional heating device of this type is disclosed in, for example, JP-A-56-133540.
As disclosed in Japanese Patent Laid-Open Publication No. H10-207, a heat exchanger built in a heat source device and heated by a burner, a circulation pump, and a plurality of branch paths having a heat medium supply valve and a radiator are connected in a ring shape. To form a heat medium circulation path, operate the burner and the circulation pump according to the operation signal on the radiator side, open the heat medium supply valve, and supply the heat medium (water or antifreeze, etc.) of the heat exchanger to the radiator. What heats a room indoors is known.
(ハ)発明が解決しようとする課題 ところが、上述した暖房装置は分岐路の熱媒体供給弁
として常閉の熱動弁や電動弁や電磁弁が使用されている
ため、暖房を必要としない放熱器には熱媒体が供給され
ず、無駄な放熱を防止できる利点がある。しかしなが
ら、熱動弁や電動弁は通電してから全開するまでに時間
遅れがあるため(熱動弁で約60秒)、放熱器側で運転信
号が発せられ、バーナで燃焼が開始しても、熱媒体がす
ぐには放熱器に循環せず、熱交換器内で熱媒体が沸騰し
たり、熱媒体の温度制御装置が働いてバーナが頻繁に発
停を繰返すなどの問題があった。また、電磁弁を使用す
ると、開弁が瞬時に行われ、このような問題が解消され
る反面、熱媒体循環路の圧力差によってウオーターハン
マー音が発生する欠点があった。(C) Problems to be Solved by the Invention However, since the above-described heating device uses a normally-closed thermal valve, motor-operated valve, or solenoid valve as a heat medium supply valve for the branch path, heat radiation that does not require heating is used. There is an advantage that no heat medium is supplied to the vessel, and wasteful heat radiation can be prevented. However, there is a time lag between the energization of the heat-operated valve and the motor-operated valve (from about 60 seconds with the heat-operated valve). However, there is a problem that the heat medium does not immediately circulate to the radiator and the heat medium boils in the heat exchanger, and the burner repeatedly starts and stops due to the operation of the heat medium temperature control device. In addition, when the solenoid valve is used, the valve is opened instantaneously and such a problem is solved, but there is a disadvantage that a water hammer noise is generated due to a pressure difference in the heat medium circulation path.
この発明は上述した事実に鑑みてなされたものであ
り、熱源機の熱媒体を熱媒体供給弁を介して複数の放熱
器に循環して暖房を行うものにおいて、熱媒体供給弁の
開弁の時間遅れに伴う熱媒体の沸騰を回避し、さらには
開弁時のウオーターハンマー音の発生を抑制することを
目的とする。The present invention has been made in view of the above-described facts, and in a system in which a heat medium of a heat source device is circulated to a plurality of radiators through a heat medium supply valve to perform heating, a valve for opening a heat medium supply valve is provided. It is an object of the present invention to avoid boiling of a heat medium due to a time delay, and further to suppress generation of a water hammer sound when a valve is opened.
(ニ)課題を解決するための手段 この発明では、熱源器に内蔵され、バーナにて加熱さ
れる熱交換器と、循環ポンプと、開弁に時間を要する熱
媒体供給弁、及び放熱器を有する複数の分岐路とが環状
に接続された熱媒体循環器と、複数の放熱器にそれぞれ
設けられ、暖房負荷に応じて運転信号を発する室内側制
御装置と、これらの室内側制御装置の何れかが運転信号
を発したときにその運転信号に対応する熱媒体開放弁を
開弁させ、かつ、熱媒体供給弁の開弁に要する時間遅延
してバーナ及び循環ポンプを作動させる熱源側制御装置
とを備えた構成である。(D) Means for Solving the Problems According to the present invention, a heat exchanger built in a heat source device and heated by a burner, a circulation pump, a heat medium supply valve that requires time to open, and a radiator are provided. A plurality of branch passages having a plurality of branch paths connected in a ring, a heat medium circulator, a plurality of radiators, each of which is provided with an indoor side control device that issues an operation signal according to a heating load; and any of these indoor side control devices. A heat source side control device for opening a heat medium release valve corresponding to the operation signal when the operation signal is issued, and for operating the burner and the circulation pump with a time delay required for opening the heat medium supply valve This is a configuration including:
(ホ)作 用 このように構成すると、暖房が必要とされている放熱
器にのみ、加熱された熱媒体が供給され、無駄な放熱が
防止されるばかりでなく、熱媒体供給弁が開弁してから
バーナが燃焼を開始するため、熱交換器内で熱媒体が沸
騰する不具合が解消される。(E) Operation With this configuration, the heated heat medium is supplied only to the radiator that needs heating, and not only wasteful heat radiation is prevented, but also the heat medium supply valve is opened. After that, the burner starts burning, so that the problem that the heat medium boils in the heat exchanger is eliminated.
しかも、熱媒体供給弁の開弁時間に合わせてバーナ及
び循環ポンプが作動するので、熱媒体の沸騰が防止され
るばかりでなく、熱媒体循環路の圧力差の少ない状態で
循環ポンプが起動され、ウオーターハンマー音の発生が
抑制される。Moreover, since the burner and the circulation pump operate in synchronization with the opening time of the heat medium supply valve, not only the boiling of the heat medium is prevented, but also the circulation pump is started with a small pressure difference in the heat medium circulation path. , The occurrence of water hammer noise is suppressed.
(ヘ)実施例 以下、この発明を図面に示す実施例について説明す
る。(F) Embodiment Hereinafter, embodiments of the present invention shown in the drawings will be described.
第1図において、(1)は屋外に設置される熱源機で
あり、熱源機(1)にはバーナ(2)と、このバーナ
(2)によって加熱される熱交換器(3)と排気ファン
(4)と、熱媒体タンク(5)と、この熱媒体タンク
(5)に装着されたラジエータキャップ(6)の圧力調
整弁(7)を介して熱媒体タンク(5)に接続されたリ
ザーブタンク(8)と、循環ポンプ(9)と、熱動弁よ
りなる常閉の2つの熱媒体供給弁(10)(11)と、バー
ナ(2)に接続されたガス管(12)と、ガス管(12)に
設けられた遮断弁(13)及び比例弁(14)と、バーナ
(2)の近くに設けられた点火装置(15)と、熱源側制
御装置(16)とが内蔵されている。また、2つの配管接
続口(17)(18)、戻り側ヘッダー(19)、熱交換器
(3)、熱媒体タンク(5)、循環ポンプ(9)、往き
側ヘッダー(20)、2つの熱媒体供給弁(10)(11)、
及び2つの配管接続口(21)(22)が順次配管にて接続
され、これらによって熱源機(1)側の熱媒体循環路
(C)を構成している。また、熱媒体タンク(5)の上
部には給液口(23)が設けられ、この給液口(23)には
逆止弁(24)が内蔵されている。この逆止弁(24)は矢
印方向に圧力(例えば、0.3kg/cm2以上)がかかると、
その方向に熱媒体が流れるのを許容し、かつ、矢印と反
対方向の熱媒体の流れを阻止するものである。(25A)
(25B)はそれぞれ室内に設置されるファンコンベクタ
ー等の室内機であり、室内機(25A)(25B)は放熱器
(26A)(26B)、送風ファン(27A)(27B)、熱媒体サ
ーミスタ(28A)(28B)、室温サーミスタ(29A)(29
B)、及び室内側制御装置(30A)(30B)が内蔵されて
いる。そして、放熱器(26A)(26B)は分岐路(C1)
(C2)を介して熱媒体循環路(C)に接続されている。In FIG. 1, (1) is a heat source unit installed outdoors. The heat source unit (1) includes a burner (2), a heat exchanger (3) heated by the burner (2), and an exhaust fan. (4) a heating medium tank (5) and a reserve connected to the heating medium tank (5) via a pressure regulating valve (7) of a radiator cap (6) mounted on the heating medium tank (5). A tank (8), a circulation pump (9), two normally-closed heat medium supply valves (10) and (11) each comprising a thermal valve, and a gas pipe (12) connected to a burner (2); A shutoff valve (13) and a proportional valve (14) provided in the gas pipe (12), an ignition device (15) provided near the burner (2), and a heat source side control device (16) are built-in. ing. In addition, two pipe connection ports (17) (18), return header (19), heat exchanger (3), heat medium tank (5), circulation pump (9), outgoing header (20), two Heat medium supply valves (10) (11),
The two pipe connection ports (21) and (22) are sequentially connected by pipes, and these constitute a heat medium circulation path (C) on the side of the heat source device (1). A liquid supply port (23) is provided at an upper portion of the heat medium tank (5), and a check valve (24) is built in the liquid supply port (23). When this check valve (24) receives pressure (for example, 0.3 kg / cm 2 or more) in the direction of the arrow,
This allows the heat medium to flow in that direction and prevents the heat medium from flowing in the direction opposite to the arrow. (25A)
(25B) is an indoor unit such as a fan control vector installed indoors, and the indoor units (25A) (25B) are radiators (26A) (26B), blower fans (27A) (27B), and a heat medium thermistor (25B). 28A) (28B), room temperature thermistor (29A) (29
B) and the indoor side control devices (30A) (30B). And the radiator (26A) (26B) is a branch road (C1)
It is connected to the heat medium circulation path (C) via (C2).
第2図は上述した暖房装置の制御部の内部構成を示す
ものであり、室内側制御装置(30A)(30B)は運転スイ
ッチ(31A)(31B)と、熱媒体サーミスタ(28A)(28
B)にて検出された熱媒体温度が所定温度以上のときに
冷風防止サーモスイッチ(32A)(32B)をオンにすると
ともに、室温サーミスタ(29A)(29B)が検出した室温
と温度設定器(33A)(33B)にて設定された設定温度と
を比較し、室温が設定温度より低いときに室温サーモス
イッチ(34A)(34B)をオンにする温度制御回路(35
A)(35B)と、運転スイッチ(31A)(31B)、室温サー
モスイッチ(34A)(34B)及び冷風防止サーモスイッチ
(32A)(32B)によって通電が制御される送風ファン
(27A)(27B)駆動用のファンモータ(36A)(36B)
と、運転スイッチ(31A)(31B)及び室温サーモスイッ
チ(34A)(34B)によって通電が制御されるリレー(37
A)(37B)とで構成されている。FIG. 2 shows the internal configuration of the control unit of the above-described heating device. The indoor control devices (30A) and (30B) include operation switches (31A) and (31B) and heat medium thermistors (28A) and (28).
When the heat medium temperature detected in B) is equal to or higher than a predetermined temperature, the cold air prevention thermo switches (32A) and (32B) are turned on, and the room temperature detected by the room temperature thermistors (29A) and (29B) and the temperature setting device ( The temperature control circuit (35A) that compares the set temperature set in (33A) and (33B) and turns on the room temperature thermoswitches (34A) and (34B) when the room temperature is lower than the set temperature
A) (35B), blower fans (27A) (27B) whose energization is controlled by operation switches (31A) (31B), room temperature thermoswitches (34A) (34B), and cold air prevention thermoswitches (32A) (32B) Drive fan motor (36A) (36B)
And a relay (37) whose energization is controlled by the operation switches (31A) (31B) and the room temperature thermoswitches (34A) (34B).
A) (37B).
一方、熱源側制御装置(16)はリレー(37A)(37B)
にて開閉されるリレー接点(371A)(371B)の接点信号
を入力して室内機(25A)(25B)の運転の有無を判別す
る運転台数判別装置(38)と、この運転台数判別装置
(38)が1台以上の運転台数を判別したときに燃焼指令
を発し、排気ファン(4)駆動用のファンモータ(3
9)、遮断弁(13)、比例弁(14)及び点火装置(15)
に所定のシーケンスで通電する燃焼制御装置(40)と、
この燃焼制御装置(40)からのポンプ運転指令を受けて
循環ポンプ(9)を運転させるポンプ駆動装置(41)
と、運転台数判別装置(38)の判別信号に応じて熱媒体
供給弁(10)(11)に通電し、これらを開放させる供給
弁制御装置(42)と、燃焼制御装置(40)が燃焼指令を
発しているときにリレー接点(371A)(371B)の投入数
に応じた運転台数判別装置(38)の出力信号を入力し、
比例弁(14)の弁開度を調整する比例弁制御装置(43)
とを備えている。On the other hand, the heat source side control device (16) is a relay (37A) (37B)
The number-of-operations discriminating device (38) for inputting a contact signal of the relay contacts (371A) (371B) opened / closed to determine whether or not the indoor units (25A) (25B) are operating; 38) issues a combustion command when it determines one or more operating units, and outputs a fan motor (3) for driving the exhaust fan (4).
9), shut-off valve (13), proportional valve (14) and ignition device (15)
A combustion control device (40) that energizes the battery in a predetermined sequence;
A pump drive device (41) for operating a circulation pump (9) in response to a pump operation command from the combustion control device (40)
And the supply valve control device (42) that energizes the heat medium supply valves (10) and (11) according to the discrimination signal of the operating number discrimination device (38) to open them, and the combustion control device (40) While issuing the command, input the output signal of the operating number discriminator (38) according to the number of relay contacts (371A) (371B)
Proportional valve control device (43) for adjusting the valve opening of the proportional valve (14)
And
第3図は運転台数判別装置(38)、ポンプ駆動装置
(41)及び供給弁制御装置(42)の内部回路を示すもの
である。運転台数判別装置(38)はリレースイッチ(37
1A)、抵抗(44)及び定電圧素子(45)、並びにリレー
スイッチ(371B)、抵抗(46)及び定電圧素子(47)の
直列回路と、抵抗(48)(49)、コンデンサ(50)及び
ダイオード(51)よりなる充放電回路(TA)と、抵抗
(52)(53)、コンデンサ(54)及びダイオード(55)
よりなる充放電回路(TB)と、接続点(56)(57)の電
圧信号を入力とするナンド回路(58)と、2つの入力端
子が接続点(56)(57)にそれぞれダイオード(59)
(60)を介して接続されたバッファー回路(61)と、こ
のバッファー回路(61)の出力を入力とするトランジス
タ(62)と、トランジスタ(62)に直列接続されたリレ
ー(63)とを備え、接続点(64)(65)がそれぞれダイ
オード(66)(67)とリレー(63)にて開閉される常開
のリレー接点(631)とを介して燃焼制御装置(40)の
入力端子(IP)に接続されている。供給弁制御装置(4
2)はトランジスタ(68)、及びこれに直列接続された
熱媒体供給弁(10)制御用のリレー(69)、並びにトラ
ンジスタ(70)、及びこれに直列接続された熱媒体供給
弁(11)制御用のリレー(71)から構成され、トランジ
スタ(68)(70)のベースは接続点(72)(73)に接続
されている。また、ポンプ駆動装置(41)は燃焼制御装
置(40)の出力端子(OP1)からポンプ運転信号が供給
されるトランジスタ(74)、及びこれに直列接続された
ポンプ(9)制御用のリレー(75)から構成されてい
る。尚、比例弁制御装置(43)は燃焼制御装置(40)の
出力端子(OP2)から燃焼信号が出力されたときに比例
弁(14)に通電し、かつ、ナンド回路(58)の出力に応
じて比例弁(14)の通電量を制御するように内部構成さ
れている。FIG. 3 shows the internal circuits of the operating number discriminating device (38), the pump driving device (41) and the supply valve control device (42). The operating number discrimination device (38) is a relay switch (37
1A), a resistor (44) and a constant voltage element (45), a series circuit of a relay switch (371B), a resistor (46) and a constant voltage element (47), a resistor (48) (49), and a capacitor (50) And discharge circuit (TA) consisting of a diode (51), resistors (52) and (53), a capacitor (54) and a diode (55)
A charge / discharge circuit (TB), a NAND circuit (58) that receives voltage signals at the connection points (56) and (57), and two input terminals connected to the connection points (56) and (57) with diodes (59), respectively. )
A buffer circuit (61) connected via the (60), a transistor (62) having an output of the buffer circuit (61) as an input, and a relay (63) connected in series to the transistor (62) The input terminals of the combustion control device (40) are connected via the diodes (66) and (67) and the normally open relay contacts (631) opened and closed by the relays (63), respectively. IP). Supply valve controller (4
2) a transistor (68) and a heat medium supply valve (10) connected thereto in series; a relay (69) for controlling; and a transistor (70) and a heat medium supply valve (11) connected thereto in series It comprises a control relay (71), and the bases of the transistors (68) and (70) are connected to the connection points (72) and (73). The pump driving device (41) includes a transistor (74) to which a pump operation signal is supplied from an output terminal (OP1) of the combustion control device (40), and a pump (9) control relay ( 75). The proportional valve control device (43) energizes the proportional valve (14) when a combustion signal is output from the output terminal (OP2) of the combustion control device (40), and supplies the output to the NAND circuit (58). It is internally configured to control the amount of energization of the proportional valve (14) accordingly.
室内機(25A)の運転スイッチ(31A)のみが投入さ
れ、かつ、室温サーモスイッチ(34A)がオンになる
と、リレー(37A)が通電され、リレースイッチ(371
A)がオンになる。このとき熱源側制御装置(16)の運
転台数判別装置(38)では、接続点(72)(73)に定電
圧が発生し、リレースイッチ(371A)及び抵抗(44)
(48)を介してコンデンサ(50)の充電が開始する。ま
た、トランジスタ(68)がオンになり、リレー(69)が
通電される。このため、熱媒体供給弁(10)に通電さ
れ、熱媒体供給弁(10)の弁開度が徐々に大きくなる。
そして、30秒程経過して熱媒体供給弁(10)の弁開度が
十分に大きくなり、コンデンサ(50)の充電電圧が約1/
2VC以上になると、バッファー回路(61)の出力が“H"
になり、トランジスタ(62)がオンとなってリレー(6
3)が通電される。このとき、電源端子(76)の電圧VC
がリレースイッチ(371A)、ダイオード(66)及びリレ
ースイッチ(631)を介して燃焼制御装置(40)の入力
端子(IP)に供給されるため、燃焼制御装置(40)は、
まず、排気ファン(4)駆動用のファンモータ(39)を
始動させ、バーナ(2)にプリパージを行わせるととも
に、出力端子(OP1)からポンプ運転信号を発してトラ
ンジスタ(74)をオンにし、リレー(75)に通電して循
環ポンプ(9)を起動させる。次いで、燃焼制御装置
(40)は出力端子(OP2)の点火装置(15)を作動さ
せ、遮断弁(13)を開にする。また、同時に出力端子
(OP2)の出力が“L"から“H"に変わり、比例弁制御回
路(43)が比例弁(14)を開放させるので、バーナ
(2)では燃焼が開始する。When only the operation switch (31A) of the indoor unit (25A) is turned on and the room temperature thermo switch (34A) is turned on, the relay (37A) is energized and the relay switch (371) is turned on.
A) turns on. At this time, in the operation number discrimination device (38) of the heat source side control device (16), a constant voltage is generated at the connection points (72) and (73), and the relay switch (371A) and the resistance (44)
Charging of the capacitor (50) starts via (48). Further, the transistor (68) is turned on, and the relay (69) is energized. Therefore, the heat medium supply valve (10) is energized, and the valve opening of the heat medium supply valve (10) gradually increases.
After about 30 seconds, the valve opening of the heat medium supply valve (10) becomes sufficiently large, and the charging voltage of the condenser (50) becomes about 1 /
When the voltage exceeds 2V C, the output of the buffer circuit (61) becomes “H”.
And the transistor (62) turns on and the relay (6
3) is energized. At this time, the voltage V C of the power supply terminal (76)
Is supplied to the input terminal (IP) of the combustion control device (40) through the relay switch (371A), the diode (66), and the relay switch (631), so that the combustion control device (40)
First, the fan motor (39) for driving the exhaust fan (4) is started, the burner (2) is pre-purged, the pump operation signal is issued from the output terminal (OP1), and the transistor (74) is turned on. Power is supplied to the relay (75) to start the circulation pump (9). Next, the combustion control device (40) activates the ignition device (15) of the output terminal (OP2) and opens the shut-off valve (13). At the same time, the output of the output terminal (OP2) changes from "L" to "H", and the proportional valve control circuit (43) opens the proportional valve (14), so that combustion starts in the burner (2).
このようにして、室内側制御装置(30A)の運転信号
に基づいて循環ポンプ(9)が運転し、バーナ(2)で
燃焼が行われると、熱交換器(3)で加熱された熱媒体
は熱媒体タンク(5)、循環ポンプ(9)、往き側ヘッ
ダー(20)、熱媒体供給弁(10)及び配管接続口(21)
を通って分岐路(C1)に入り、放熱器(26A)を流れ
る。そして、熱媒体サーミスタ(28A)の検出温度が所
定温度以上になると、冷風防止サーモスイッチ(32A)
がオンになり、送風ファン(27A)駆動用のファンモー
タ(36A)に通電されるため、放熱器(26A)の熱媒体は
送風ファン(27A)にて送られてくる室内空気と熱交換
し、室内の暖房に利用された後、配管接続口(17)及び
戻り側ヘッダー(19)を通って熱交換器(3)に戻り、
実線矢印で示す循環を繰返す。比例弁制御装置(43)は
ナンド回路(58)の2入力が“H"と“L"であり、その出
力が“H"になっているため、比例弁(14)の通電量を小
さくし、その弁開度を絞ってバーナ(2)に弱燃焼を行
わせる。In this way, when the circulation pump (9) is operated based on the operation signal of the indoor side control device (30A) and combustion is performed by the burner (2), the heat medium heated by the heat exchanger (3) Is a heat medium tank (5), a circulation pump (9), an outgoing header (20), a heat medium supply valve (10), and a pipe connection port (21).
Through the fork (C1) and through the radiator (26A). Then, when the detected temperature of the heat medium thermistor (28A) becomes equal to or higher than a predetermined temperature, a cold air prevention thermo switch (32A)
Is turned on and the fan motor (36A) for driving the blower fan (27A) is energized, so that the heat medium of the radiator (26A) exchanges heat with the indoor air sent by the blower fan (27A). After being used for heating the room, it returns to the heat exchanger (3) through the pipe connection port (17) and the return header (19),
The cycle indicated by the solid arrow is repeated. In the proportional valve control device (43), since the two inputs of the NAND circuit (58) are "H" and "L" and the output is "H", the amount of electricity supplied to the proportional valve (14) is reduced. Then, the burner (2) performs weak combustion by reducing the valve opening.
室内側制御装置(30B)の運転スイッチ(31B)のみが
投入され、かつ、室温サーモスイッチ(34B)がオンに
なり、室内側制御装置(30B)から熱源側制御装置(1
6)へ運転信号が送られた場合も同様であり、この場
合、熱媒体供給弁(11)の弁開度が十分大きくなってか
ら循環ポンプ(9)が始動し、バーナ(2)が燃焼を開
始する。そして、熱交換器(3)の熱媒体は破線矢印で
示すように放熱器(26B)に循環し、放熱器(26B)の設
置された部屋の暖房に利用される。また、バーナ(2)
では弱燃焼が行われ、1台運転時に見合った燃焼量にな
る。Only the operation switch (31B) of the indoor control device (30B) is turned on, and the room temperature thermo switch (34B) is turned on, so that the indoor control device (30B) sends the heat source control device (1
The same applies to the case where the operation signal is sent to 6). In this case, the circulation pump (9) is started after the valve opening of the heat medium supply valve (11) is sufficiently large, and the burner (2) is burned. To start. Then, the heat medium of the heat exchanger (3) circulates to the radiator (26B) as shown by the dashed arrow, and is used for heating the room where the radiator (26B) is installed. In addition, burner (2)
In this case, weak combustion is performed, and the combustion amount becomes appropriate during operation of one vehicle.
室内側制御装置(30A)(30B)の運転スイッチ(31
A)(31B)がともに投入され、かつ、室温サーモスイッ
チ(34A)(34B)がオンの場合、リレースイッチ(371
A)(371B)がオンになる。この場合、熱媒体供給弁(1
0)(11)が開になり、熱交換器(3)の熱媒体は実線
及び破線の矢印で示すように放熱器(26A)(26B)に循
環し、放熱器(26A)(26B)の設置された部屋の暖房に
利用される。また、熱媒体供給弁(10)(11)がともに
十分に開弁されると、ナンド回路(58)の2入力がとも
に“H"になり、その出力が“L"になるので、比例弁制御
装置(43)は比例弁(14)の通電量を大きくし、その弁
開度を大きくしてバーナ(2)の強燃焼を行わせる。Operation switch (31) of the indoor control unit (30A) (30B)
A) When both (31B) are turned on and the room temperature thermoswitches (34A) and (34B) are on, the relay switch (371
A) (371B) turns on. In this case, the heat medium supply valve (1
0) and (11) are opened, and the heat medium of the heat exchanger (3) circulates to the radiators (26A) and (26B) as indicated by solid and broken arrows, and the radiators (26A) and (26B) Used for heating the installed room. When the heat medium supply valves (10) and (11) are fully opened, both inputs of the NAND circuit (58) become "H" and their outputs become "L". The control device (43) increases the amount of energization of the proportional valve (14), increases the valve opening, and causes the burner (2) to perform strong combustion.
本実施例によれば、室内側制御装置(30A)(30B)の
何れかが運転信号を発し、リレースイッチ(371A)(37
1B)がオンしたときにその運転信号に対応する熱媒体供
給弁(10)(11)を開弁させ、かつ、熱媒体供給弁(1
0)(11)の開弁に必要な時間遅延してバーナ(2)及
び循環ポンプ(9)を作動させたので、暖房が必要とさ
れている放熱器にのみ、加熱された熱媒体が供給され、
無駄な放熱を防止できるばかりでなく、燃焼開始と同時
に加熱された熱媒体を循環させ、熱交換器(3)内での
熱媒体の沸騰を防止することができる。しかも、循環ポ
ンプ(9)の起動前に熱媒体供給弁(10)(11)が開弁
されているので、熱媒体供給弁前後の熱媒体循環路
(C)の圧力差を小さくしてウオーターハンマー音の発
生を抑えることができる。また、室内機(25A)(25B)
の運転台数が1台から2台に増えたときも、熱媒体供給
弁の弁開度が十分に大きくなってから、バーナ(2)の
燃焼量が弱から強に切換わるため、燃焼量の切換時に熱
交換器(3)内で熱媒体が沸騰する心配もない。According to the present embodiment, one of the indoor control devices (30A) (30B) issues an operation signal, and the relay switches (371A) (37A)
When the heat medium supply valve (1) is turned on, the heat medium supply valves (10) and (11) corresponding to the operation signal are opened, and the heat medium supply valve (1) is opened.
0) The burner (2) and the circulating pump (9) were operated with a time delay necessary for opening the valve in (11), so that the heated heat medium was supplied only to the radiator requiring heating. And
Not only wasteful heat radiation can be prevented, but also the heated heat medium can be circulated simultaneously with the start of combustion to prevent the heat medium from boiling in the heat exchanger (3). Moreover, since the heat medium supply valves (10) and (11) are opened before the circulation pump (9) is started, the pressure difference between the heat medium circulation passages (C) before and after the heat medium supply valve is reduced to reduce the water. The generation of hammer noise can be suppressed. In addition, indoor unit (25A) (25B)
When the operating number of the burner (2) increases from one to two, the burner (2) switches from low to high after the valve opening of the heat medium supply valve becomes sufficiently large. There is no fear that the heat medium boils in the heat exchanger (3) at the time of switching.
(ト)発明の効果 この発明は以上のように構成されているので、暖房が
必要とされている放熱器にのみ加熱された熱媒体を供給
できるように分岐路に熱媒体供給弁を設けたものにおい
て、室内側制御装置の運転信号に対応する熱媒体供給弁
の弁開度が十分に大きくなってからバーナを作動させる
ことができ、熱交換器内で熱媒体が沸騰することによる
種々の不具合を解消できるものである。(G) Effect of the Invention Since the present invention is configured as described above, a heat medium supply valve is provided in a branch passage so that a heated heat medium can be supplied only to a radiator requiring heating. The burner can be operated after the valve opening of the heat medium supply valve corresponding to the operation signal of the indoor side control device becomes sufficiently large, and various types of heat medium boiling in the heat exchanger can be achieved. The problem can be solved.
しかも、熱媒体供給弁の開弁時間に合わせてバーナ及
び循環ポンプが作動するので、熱媒体の沸騰がより的確
に防止できるばかりでなく、熱媒体循環路の圧力差の少
ない状態で循環ポンプを起動させることができ、熱媒体
供給弁の開弁に伴うウオーターハンマー音を低減できる
効果を奏する。Moreover, since the burner and the circulation pump operate in synchronization with the opening time of the heat medium supply valve, not only can the boiling of the heat medium be prevented more accurately, but also the circulation pump can be operated in a state where the pressure difference in the heat medium circulation path is small. It can be activated, and has an effect of reducing the water hammer noise accompanying the opening of the heat medium supply valve.
第1図はこの発明の一実施例を示す暖房装置の概略構成
図、第2図は暖房装置の制御部の内部構成説明図、第3
図は同じく要部電気回路図である。 (1)……熱源機、(2)……バーナ、(3)……熱交
換器、(9)……循環ポンプ、(10)(11)……熱媒体
供給弁、(16)……熱源側制御装置、(26A)(26B)…
…放熱器、(30A)(30B)……室内側制御装置、(C)
……熱媒体循環路、(C1)(C2)……分岐路。FIG. 1 is a schematic configuration diagram of a heating device showing one embodiment of the present invention, FIG. 2 is an explanatory diagram of an internal configuration of a control unit of the heating device, FIG.
The figure is a main part electric circuit diagram. (1) Heat source unit (2) Burner (3) Heat exchanger (9) Circulating pump (10) (11) Heat medium supply valve (16) Heat source side control device, (26A) (26B)…
... radiator, (30A) (30B) ... indoor control unit, (C)
... heat medium circulation path, (C1) (C2) ... branch path.
フロントページの続き (58)調査した分野(Int.Cl.6,DB名) F24D 3/00 F24D 3/02Continuation of the front page (58) Field surveyed (Int.Cl. 6 , DB name) F24D 3/00 F24D 3/02
Claims (1)
熱交換器と、循環ポンプと、開弁に時間を要する熱媒体
供給弁、及び放熱器を有する複数の分岐路とが環状に接
続された熱媒体循環路と、複数の放熱器にそれぞれ設け
られ、暖房負荷に応じて運転信号を発する室内側制御装
置と、これらの室内側制御装置の何れかが運転信号を発
したときにその運転信号に対応する熱媒体供給弁を開弁
させ、かつ、所定時間遅延してバーナ及び循環ポンプを
作動させる熱源側制御装置とを備えたことを特徴とする
暖房装置。1. A heat exchanger built in a heat source unit and heated by a burner, a circulation pump, a heat medium supply valve requiring a long time to open, and a plurality of branch passages having a radiator are formed in an annular shape. A connected heat medium circulation path, provided in each of the plurality of radiators, and an indoor control device that issues an operation signal according to a heating load, and when any of these indoor control devices issues an operation signal. A heating device, comprising: a heat source side control device that opens a heat medium supply valve corresponding to the operation signal, and operates a burner and a circulation pump with a predetermined delay.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1032014A JP2783827B2 (en) | 1989-02-10 | 1989-02-10 | Heating system |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1032014A JP2783827B2 (en) | 1989-02-10 | 1989-02-10 | Heating system |
Publications (2)
Publication Number | Publication Date |
---|---|
JPH02213618A JPH02213618A (en) | 1990-08-24 |
JP2783827B2 true JP2783827B2 (en) | 1998-08-06 |
Family
ID=12347007
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP1032014A Expired - Fee Related JP2783827B2 (en) | 1989-02-10 | 1989-02-10 | Heating system |
Country Status (1)
Country | Link |
---|---|
JP (1) | JP2783827B2 (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN112050273B (en) * | 2020-08-05 | 2021-10-22 | 河海大学 | Hot water pipe network virtual energy storage control method based on quasi-dynamic time delay characteristic |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5830510B2 (en) * | 1977-11-08 | 1983-06-29 | 松下電器産業株式会社 | remote air conditioning control device |
-
1989
- 1989-02-10 JP JP1032014A patent/JP2783827B2/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
JPH02213618A (en) | 1990-08-24 |
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