JPH0268449A - Bypass mixing type hot water feeder - Google Patents
Bypass mixing type hot water feederInfo
- Publication number
- JPH0268449A JPH0268449A JP63220719A JP22071988A JPH0268449A JP H0268449 A JPH0268449 A JP H0268449A JP 63220719 A JP63220719 A JP 63220719A JP 22071988 A JP22071988 A JP 22071988A JP H0268449 A JPH0268449 A JP H0268449A
- Authority
- JP
- Japan
- Prior art keywords
- water
- hot water
- temperature
- heat exchanger
- opening
- 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.)
- Granted
Links
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 145
- 238000002485 combustion reaction Methods 0.000 claims description 23
- 239000000446 fuel Substances 0.000 claims description 7
- 238000010079 rubber tapping Methods 0.000 claims description 5
- 238000011144 upstream manufacturing Methods 0.000 claims description 4
- 230000004044 response Effects 0.000 abstract 1
- 239000007789 gas Substances 0.000 description 6
- 238000010586 diagram Methods 0.000 description 5
- 239000002699 waste material Substances 0.000 description 5
- 238000001514 detection method Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 2
- 239000000919 ceramic Substances 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 239000000567 combustion gas Substances 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 239000000295 fuel oil Substances 0.000 description 1
- 239000010763 heavy fuel oil Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000008400 supply water Substances 0.000 description 1
- 239000008399 tap water Substances 0.000 description 1
- 235000020679 tap water Nutrition 0.000 description 1
Landscapes
- Instantaneous Water Boilers, Portable Hot-Water Supply Apparatuses, And Control Of Portable Hot-Water Supply Apparatuses (AREA)
Abstract
Description
【発明の詳細な説明】
[産業上の利用分野]
本発明は、熱交換器を通過した湯と、熱交換器をバイパ
スした水とを混合して湯を供給するバイパスミキシング
式給湯器に関1−る。[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a bypass mixing type water heater that supplies hot water by mixing hot water that has passed through a heat exchanger and water that has bypassed the heat exchanger. 1-ru.
[従来の技術]
給湯器は、燃料の燃焼によって得られた熱と、水とを熱
交換する熱交換器の温度が低いと、燃料の燃焼によって
発生し、た水が熱交換器にイ」着してしまう。[Prior Art] In water heaters, if the temperature of the heat exchanger that exchanges heat obtained by combustion of fuel with water is low, water generated by combustion of fuel will leak into the heat exchanger. I end up wearing it.
そこで、熱交換器をバイパスするバイパス水路を設け、
熱交換器を通過し加熱された湯とバイパス水路を通過し
た水とを熱交換器の下流でミキシングし 熱交換器の温
度を高く維持して、給湯器より得られる湯温を低くする
バイパスミキシング式の給湯器が知られている。Therefore, we installed a bypass waterway to bypass the heat exchanger.
Bypass mixing mixes hot water that has passed through a heat exchanger and water that has passed through a bypass waterway downstream of the heat exchanger, keeping the temperature of the heat exchanger high and lowering the temperature of the hot water obtained from the water heater. type water heaters are known.
従来のバイパスミキシング式の給湯器は、熱交換器とバ
イパス水路との分岐部より熱交換器側で、月つ熱交換器
の上流に、熱交換器へ流入する水撒を一定に保つガバナ
弁か設けられ、混合後の出湯温度に応して、燃焼量と、
バイパス水路に設けIj。Conventional bypass mixing type water heaters have a governor valve installed upstream of the heat exchanger on the side of the heat exchanger from the branching point between the heat exchanger and the bypass waterway to keep the amount of water flowing into the heat exchanger constant. The amount of combustion and
Ij installed in the bypass waterway.
れな絞り弁の開度とをフィードパ・ンク制御することに
より所望の湯を得ていた。The desired amount of hot water was obtained by controlling the opening of the throttle valve and the feed pump.
[発明が解決しようとする課題]
しかるに、従来のバイパスミキシング式の給湯器は、給
湯器に流入する水圧か変化すると、バイパス水路を流れ
る水撒が変化する。このため、ミキシング後の出湯温度
が水圧の変動によって変動してしまう。[Problems to be Solved by the Invention] However, in the conventional bypass mixing type water heater, when the water pressure flowing into the water heater changes, the amount of water flowing through the bypass channel changes. For this reason, the temperature of hot water after mixing fluctuates due to fluctuations in water pressure.
そして、従来の制御装置が、出湯温度が変動してから、
その変動に応じて燃焼量と、バイパス水路の絞り弁の開
度とを制御しCいた。しかるに、従来のバイパスミキシ
ング式の給湯器は、出湯温度が変化してから、出湯温度
がL+的の温度となるように制御するものであったため
、出湯温度か安定しない問題点を倫え゛(いた9、
そこて、本出願人は、今回、」1記問題点を解決する技
術を考案した。この考案は、熱交換器とバイパス水路と
の分岐部の十流、または合流部の下流に、熱交換器とバ
イパス水路とを通過する水の総量を規制する絞りを設け
たものである。この技術は、熱交換器とバイパス水路と
を通過する水の比率を一定にするものである。Then, the conventional control device, after the temperature of the hot water fluctuates,
The combustion amount and the opening degree of the bypass waterway throttle valve were controlled in accordance with the fluctuations. However, in conventional bypass mixing type water heaters, the outlet temperature is controlled so that it reaches the L+ temperature after the outlet temperature changes. 9 Therefore, the present applicant has devised a technology to solve the problem described in 1.This invention has been developed to solve the problem described in 1. , a restriction is provided to regulate the total amount of water that passes through the heat exchanger and the bypass waterway.This technology maintains a constant ratio of water that passes through the heat exchanger and the bypass waterway.
これは、給湯器に供給される水圧が変化しても、熱交#
IA器を通過し、加熱された湯量と、バイパス水路を通
過した水星とか、常に一定の比率となるため、ミキシン
グ後の出湯温度か安定する。This means that even if the water pressure supplied to the water heater changes, the heat exchange #
Since the amount of hot water that passes through the IA device and is heated and the amount of water that passes through the bypass waterway is always in a constant ratio, the hot water temperature after mixing is stable.
そして、この技術は、次の技術を追加することにより、
出湯温度を設定温度とすることができる。By adding the following technology, this technology
The hot water temperature can be set as a set temperature.
その技術とは、給湯器のバイパス水路に、バイパス水路
を通過する水数を調節可能な絞り弁を設ける。そして、
その絞り弁は、絞り弁制御手段によって、入水量、設定
温度、入水温度等から開度を決定する。そしてさらに、
開度補正手段によって混合後の出湯温度と、設定温度と
に誤差か生じた場合、この誤差をなくすように、絞り弁
制御手段によって決定された開度を補正するものである
。The technology involves installing a throttle valve in the water heater's bypass waterway that can adjust the amount of water that passes through the bypass waterway. and,
The opening degree of the throttle valve is determined by the throttle valve control means based on the amount of water entering, the set temperature, the water entering temperature, etc. And furthermore,
If an error occurs between the tapped water temperature after mixing and the set temperature due to the opening correction means, the opening determined by the throttle valve control means is corrected to eliminate this error.
しかるに、フィードバックにより、絞り弁の開度を補正
するということは、出湯毎に、絞り弁制御手段くフィー
ドフォワード)によつ゛C決定された絞りの開度から、
開度YiM−手段(フィードバック)により補正された
開度に移行することを、い、昧する。これは、出湯毎に
、設定温度とは異なった出湯温度から、設定温度へ変動
することを意味する。However, correcting the opening degree of the throttle valve by feedback means that the opening degree of the throttle valve is determined by the throttle valve control means (feed forward) every time hot water is discharged.
Opening degree YiM - It is prohibited to shift to the opening degree corrected by the means (feedback). This means that each time hot water is tapped, the tapped water temperature changes from a different temperature to the set temperature.
本発明は、上記事情に鑑みCなされたもので、その目的
は、供給される水圧が変化しても出湯温度が変化するこ
となく安定した出湯温度を得るとともに、出湯開始初期
から設定温度の湯を供給することのできるバイパスミキ
シング式給湯器の提供にある。The present invention has been made in view of the above circumstances, and its purpose is to obtain a stable hot water tap temperature without changing the tap water temperature even if the supplied water pressure changes, and to provide hot water at a set temperature from the beginning of hot water tap. The objective is to provide a bypass mixing type water heater that can supply water.
[課題を解決するための手段]
本発明は上記目的を達成するために、第1図に示すよう
に、燃料の燃焼によって得られた熱と水とを熱交換し、
水を加熱する熱交換器1と、該熱交換器1をバイパスす
るバイパス水路2と、前記熱交換器1と前記バイパス水
路2との分岐部の上流、または合流部の下流に、前記熱
交換器1と前記バイパス水路2とを通過する水の総量を
規制する絞り3と、前記バイパス水路2に設けられ、開
度の調節を行うことにより、前記バイパス水路2を通過
する水量の調節を行う絞り弁4と、入水量、設定温度、
入水温度等から出湯される湯が設定温度を得るに必要な
前記絞り弁4の開度を決定する絞り弁制御手段5、出湯
温度より前記絞り弁4の開度を補正する開度補正手段6
、および該開度補止手段6による補正量を記憶する記憶
手段7を備え、出湯開始時に、前記記憶手段7に記憶さ
れた前回の出湯時の補正量を加味して前記絞り弁4の開
度を決定する制御装置8とを具備することを技術的手段
とする。[Means for Solving the Problems] In order to achieve the above object, the present invention exchanges heat obtained by burning fuel with water, as shown in FIG.
A heat exchanger 1 that heats water, a bypass waterway 2 that bypasses the heat exchanger 1, and a heat exchanger 1 and a bypass waterway 2 that bypass the heat exchanger 1 and the bypass waterway 2, and A throttle 3 that regulates the total amount of water passing through the vessel 1 and the bypass waterway 2 is provided in the bypass waterway 2, and the amount of water passing through the bypass waterway 2 is adjusted by adjusting the degree of opening. Throttle valve 4, water input amount, set temperature,
Throttle valve control means 5 that determines the opening degree of the throttle valve 4 necessary for the hot water to reach the set temperature based on the incoming water temperature, etc., and the opening degree correction means 6 that corrects the opening degree of the throttle valve 4 based on the hot water exit temperature.
, and a storage means 7 for storing the amount of correction by the opening correction means 6, and when starting the opening of the throttle valve 4, taking into account the amount of correction during the previous tapping stored in the storage means 7. The technical means is to include a control device 8 that determines the degree.
[作用] 出湯開始時について説明する。[Effect] The time when the hot spring starts will be explained.
出湯が開始されると、絞り弁制御手段で入水量、設定温
度、入水温度等から設定温度を得るに必要な絞り弁の開
度が決定される。そして、この絞り弁制御手段で決定さ
れた開度には、回路記憶手段に記憶された、前回の出湯
時の、開度補正手段によって補正された開度が加味され
る。When hot water starts to be dispensed, the throttle valve control means determines the opening degree of the throttle valve necessary to obtain the set temperature from the amount of water entering, the set temperature, the water entering temperature, and the like. The opening degree determined by the throttle valve control means takes into account the opening degree corrected by the opening degree correcting means at the time of the previous tapping, which is stored in the circuit storage means.
これにより、出湯開始直後から、器具のバラツキ等によ
る出湯温度と設定温度との誤差が捕■−される。As a result, an error between the hot water tap temperature and the set temperature due to variations in appliances, etc. is detected immediately after hot water tap starts.
[発明の効果]
本発明によれば、出湯開始直後から、器具のバラツキ等
による誤差が、絞り弁の開度によって修正される。この
ため器具のバラツキ等が発生しても、出湯毎に設定温度
の湯を供給することができる。[Effects of the Invention] According to the present invention, immediately after the start of hot water dispensing, errors caused by variations in appliances, etc. are corrected by the opening degree of the throttle valve. Therefore, even if there are variations in appliances, hot water at the set temperature can be supplied every time hot water is tapped.
「実施例]
次に、本発明のバイパスミキシング式給湯器を図に示す
一実施例に基つき説明する。Embodiment Next, a bypass mixing type water heater of the present invention will be described based on an embodiment shown in the drawings.
第2図にバイパスミキシング式のガス給湯器の概略図を
示す。Figure 2 shows a schematic diagram of a bypass mixing type gas water heater.
このガス給湯器は、大別して燃焼部1oと、カス供給配
管20と、水配管30と、制御装置4oとがら構成され
ている。This gas water heater is broadly divided into a combustion section 1o, a waste supply pipe 20, a water pipe 30, and a control device 4o.
燃焼部10は、セラミック製の表面燃焼式バーナ11を
内部に配設した燃焼ケース12と、この燃焼ケース12
内に燃焼用の空気を供給する送風機13とがらなり、送
風機13によって燃jsiケース12内に導がれな燃焼
用の空気は、燃焼後、燃焼ガスとして図示しない排気口
より排出される。The combustion section 10 includes a combustion case 12 in which a ceramic surface combustion type burner 11 is disposed, and this combustion case 12.
The combustion air that is not guided into the combustion case 12 by the blower 13 is discharged as combustion gas from an exhaust port (not shown) after combustion.
ガス供給配管20は、送風機13の遠心式ファン14の
内周に開口するノスル21へ、燃料のカスを供給するも
ので、上流側より元電磁弁22、主電磁弁23、比例弁
24か順次設けられている。比例弁24の下流は2つに
分岐され、一方には切替用電磁弁25、他方にはオリフ
ィス26が設けられている。なお、元電磁弁22、主電
磁弁23および切替用電磁弁25は、通電制御によって
ガス供給配管20を開閉するもので、比例弁24は通電
量に応じて開]」比が変化し、ノスル21に供給される
カス量を調節するものである。The gas supply pipe 20 is for supplying fuel waste to a nostle 21 that opens on the inner periphery of the centrifugal fan 14 of the blower 13, and sequentially connects the original solenoid valve 22, the main solenoid valve 23, and the proportional valve 24 from the upstream side. It is provided. The downstream side of the proportional valve 24 is branched into two parts, one of which is provided with a switching solenoid valve 25 and the other with an orifice 26. Note that the main solenoid valve 22, the main solenoid valve 23, and the switching solenoid valve 25 open and close the gas supply pipe 20 by energization control, and the proportional valve 24 opens and closes depending on the amount of energization. This is to adjust the amount of waste supplied to 21.
水配管30は、−・方が水の供給源に接続され、他方か
給湯口に接続されるものて、バーナ11のカスの燃焼に
よって発生する熱と内部を流れる水とを熱交換し、内部
を通過する水を加熱する熱交換器31と、この熱交換器
31をバイパスするバイパス水路32とを備える。The water pipe 30 has one end connected to a water supply source and the other end connected to a hot water supply inlet, and exchanges heat generated by combustion of waste from the burner 11 with water flowing inside. The heat exchanger 31 heats the water passing through the heat exchanger 31, and the bypass water channel 32 bypasses the heat exchanger 31.
熱交換器31とバイパス水路32との分岐部の4−流の
水配管30には、熱交換器31とバイパス水路32とを
通過する水の総量を規制する本発明の絞りの機能と、カ
バナ弁の機能とか組み合わされた電動水量制御装置33
が設けられている。また、バイパス水路32にも、バイ
パス水路32を通過する水量を、開度を可変することに
よって調節する絞り弁34が設けられている。The 4-stream water pipe 30 at the branch point between the heat exchanger 31 and the bypass waterway 32 is equipped with a throttle function of the present invention that regulates the total amount of water passing through the heat exchanger 31 and the bypass waterway 32, and a cabana. Electric water flow control device 33 combined with valve function
is provided. Further, the bypass waterway 32 is also provided with a throttle valve 34 that adjusts the amount of water passing through the bypass waterway 32 by varying its opening degree.
なお、電動水量制御装置33の絞りは、熱交換器31お
よびバイパス水路32へ通過する水の総量を規制すべく
、絞り弁34と同じか、絞り弁34より小さく設定され
ている。また、電動水量制御装置33と絞り弁34の絞
りは、可変可能に設りられCおり、その調節する1段と
して、水路を開閉可能な弁体をギアドモータによって駆
動している。Note that the throttle of the electric water flow control device 33 is set to be the same as or smaller than the throttle valve 34 in order to regulate the total amount of water passing through the heat exchanger 31 and the bypass waterway 32. Further, the throttles of the electric water flow control device 33 and the throttle valve 34 are provided to be variable, and as one stage of adjustment, a geared motor drives a valve body that can open and close the water channel.
制御装置40は、第3図に示すように、マイクロコンピ
ュータ41、リレー回路42および駆動回路43から構
成されるもので、使用者によって操作されるコントロー
ラ44や各種センサの出力に応じて、バーナ11に名犬
を行うスパーカ45、元電磁弁22、主電磁弁23、比
例弁24、切替用電磁弁25、電動水量制御装置33、
絞り弁34を通電制御するものである。As shown in FIG. 3, the control device 40 is composed of a microcomputer 41, a relay circuit 42, and a drive circuit 43, and controls the burner 11 according to the outputs of a controller 44 and various sensors operated by the user. Sparker 45, original solenoid valve 22, main solenoid valve 23, proportional valve 24, switching solenoid valve 25, electric water flow control device 33,
The throttle valve 34 is energized and controlled.
制御装置40の各種センサは、バーナ11の炎の検出お
よび空燃比を検出するためのフレームロット46および
サーモカップル47、電動水量制御装置33および絞り
弁34の弁体に連動し、開度を検出するポテンショメー
タ48.41)、送風機13の回転速度を検出する風量
検出センサ50.熱交換器31およびバイパス水路32
に流入する水温を検出する入水温センサ51、熱交換器
31を通過した湯温を検出する湯温センサ52、熱交換
器31およびバイパス水路32を通過し、混合された湯
温を検出する出湯温センサ53、熱交換器31およびバ
イパス水路32に流入する水量を検出する水量検出セン
サ54を備える。Various sensors of the control device 40 are linked to a flame rod 46 and a thermocouple 47 for detecting the flame of the burner 11 and the air-fuel ratio, an electric water flow control device 33, and a valve body of the throttle valve 34 to detect the opening degree. potentiometers 48, 41) to detect the rotational speed of the blower 13, and an air volume detection sensor 50. Heat exchanger 31 and bypass waterway 32
An inlet water temperature sensor 51 detects the temperature of water flowing into the water, a hot water temperature sensor 52 detects the temperature of the hot water that has passed through the heat exchanger 31, and an outlet water temperature sensor 52 that detects the temperature of the mixed hot water that has passed through the heat exchanger 31 and the bypass waterway 32. It includes a temperature sensor 53, a water amount detection sensor 54 that detects the amount of water flowing into the heat exchanger 31 and the bypass waterway 32.
次に、マイクロコンビJ、−夕41による燃焼制御、お
よび水量制御について簡単に説明する。Next, the combustion control and water amount control by the microcombi J-41 will be briefly explained.
燃焼制御は、使用者が給湯口に接続されたカランを操作
し、水配管30に水流が生じると、水量検出センサ54
内の回転体が回転し、燃焼が開始される。この燃焼量は
、コン1〜ローラ44によって設定された出湯温度が得
られるように、各種センサによって得られた水量、入水
温度、熱交換器31とバイパス水路32との混合湯温く
出湯温度)等より決定され、送風機13は決定された燃
焼量に応じた風量をバーナ11に供給するように通電制
御される。For combustion control, when the user operates a bell connected to the hot water supply inlet and a water flow is generated in the water pipe 30, the water amount detection sensor 54
The rotating body inside rotates and combustion begins. The amount of combustion is determined by the amount of water obtained by various sensors, the temperature of the inlet water, the temperature of the mixed water from the heat exchanger 31 and the bypass waterway 32, etc., so that the outlet temperature set by the controller 1 to the roller 44 can be obtained. The blower 13 is controlled to be energized so as to supply the burner 11 with an air volume corresponding to the determined combustion amount.
そして、送風機13の回転速度やバーナ11の炎の温度
に応じたガス量が得られるように、比例弁24および切
替用電磁弁25が通電制御される。Then, the proportional valve 24 and the switching solenoid valve 25 are controlled to be energized so that a gas amount corresponding to the rotational speed of the blower 13 and the temperature of the flame of the burner 11 is obtained.
また、絞り弁34は、熱交換器31の湯温か、燃焼によ
って発生した水(ドレン水)が熱交換器31に付着しな
い温度(例えば60°C)以上に維持されるように、入
水温度、熱交換器31を通過した湯温、出湯温度より算
出された適切な開度て固定される。The throttle valve 34 also controls the inlet water temperature so that the temperature of the hot water in the heat exchanger 31 is maintained above a temperature (for example, 60° C.) at which water generated by combustion (drain water) does not adhere to the heat exchanger 31. The opening is fixed at an appropriate opening calculated from the temperature of the hot water passing through the heat exchanger 31 and the temperature of the hot water exiting the water.
なお、絞り弁34の開度の固定は、入水4i1.が低下
した際や、設定温度か低]・した際に解除され、入水量
の低下、設定温度の低下に応じて算出された開度となる
ように絞り弁34が通電制御される。Note that the opening degree of the throttle valve 34 is fixed when water enters 4i1. is released or the set temperature is low], and the throttle valve 34 is controlled to be energized so that the opening degree is calculated according to the decrease in the amount of water input and the decrease in the set temperature.
また、電動水量制御装置33は、出湯温度が得られるに
必要な最大流量を越えないように通電制御される。Further, the electric water flow rate control device 33 is energized and controlled so as not to exceed the maximum flow rate required to obtain the hot water temperature.
本実施例の給湯器は、熱交換器31およびバイパス水路
32の分岐部の」流に、熱交換器31およびバイパス水
路32を通過する水の総量を規制する、絞りおよびカバ
ナ弁の機能を看する電動水量制御装置33を備える。こ
のため、給湯器を通過する水圧が変化しても、ミキシン
ク比が変化しない。この結果、流出する出湯温度が安定
する。The water heater of this embodiment has a throttle and a cabana valve function in the flow at the branch part of the heat exchanger 31 and the bypass waterway 32 to regulate the total amount of water passing through the heat exchanger 31 and the bypass waterway 32. An electric water flow control device 33 is provided. Therefore, even if the water pressure passing through the water heater changes, the mixing ratio does not change. As a result, the temperature of the hot water flowing out is stabilized.
一方、コンピュータ41には、本発明の絞り弁制御手段
55、開度補正手段56お、Lひ記憶手段57がフ。On the other hand, the computer 41 includes a throttle valve control means 55, an opening correction means 56, and an L storage means 57 of the present invention.
ログラムされている。has been programmed.
絞り弁制御手段55は、フィードフォワードにより、出
湯温度が設定温度となるように、絞り弁34の開度を設
定するもので、コン1〜ローラ44に設定された設定温
度、入水温センサ51により検出された入水温度、+−
i検出センセン4により検出されな入水量、および燃焼
部10における燃焼量等から開度を決定する。The throttle valve control means 55 sets the opening degree of the throttle valve 34 by feedforward so that the outlet water temperature becomes the set temperature. Detected inlet water temperature, +-
The degree of opening is determined based on the amount of water that is not detected by the i-detection sensor 4, the amount of combustion in the combustion section 10, and the like.
開度補正手段56は、器具のバラツキ等により、絞り弁
制御手段55の決定した開度では出湯温度が設定温度と
一致しない場合に働く。これは、出湯温度と設定温度と
に誤差が生じた場合、この誤差をなくすように補正量が
決定され、この補正量に応じて、絞り弁制御手段55に
よって決定された開度を増減させるものである。The opening correction means 56 operates when the outlet temperature does not match the set temperature at the opening determined by the throttle valve control means 55 due to variations in equipment or the like. This means that when an error occurs between the tapped water temperature and the set temperature, a correction amount is determined to eliminate this error, and the opening degree determined by the throttle valve control means 55 is increased or decreased according to this correction amount. It is.
記憶手段57は、出湯時における開度補正手段56の補
正量の平均値、あるいは出湯終了直前の補正量を記憶す
るものである。The storage means 57 stores the average value of the correction amount of the opening degree correction means 56 during hot water tapping, or the correction amount immediately before the end of hot water tapping.
そして、記憶手段57に記憶された補正量は、次の出湯
開始時に、開度補止手段56の初期値とされる。Then, the correction amount stored in the storage means 57 is set as the initial value of the opening degree correction means 56 at the start of the next hot water dispensing.
上記により、出湯が開始されると、記憶手段57に記憶
された補正量が、開度補止手段56の初期値として与え
られ、絞り弁制御手段55でフィードフォワードにより
決定された開度に加算される。すると、出湯開始直後か
ら、器具のバラツキ等による出湯温度と設定温度との誤
差が補正される。As described above, when hot water starts to be tapped, the correction amount stored in the storage means 57 is given as the initial value of the opening correction means 56, and added to the opening determined by the feed forward in the throttle valve control means 55. be done. Immediately after the start of hot water dispensing, the error between the dispensing hot water temperature and the set temperature due to variations in appliances, etc. is corrected.
この結果、本実施例のバイパスミキシング式給湯器は、
出湯毎に器具のバラツキの影響を受けることなく、設定
温度の湯を安定して供給することができる。As a result, the bypass mixing water heater of this example has
It is possible to stably supply hot water at a set temperature without being affected by variations in appliances each time hot water is dispensed.
(変形例)
本実施例゛Cは絞りを可変可能に設けた例を示したが、
固定絞りとしても良い。カバナ弁と分離させC良いこと
は訂うまでもない。(Modified example) This embodiment C shows an example in which the diaphragm is variable.
It is also possible to use a fixed aperture. Needless to say, it is good to separate it from the cabana valve.
絞りを熱交換器とバイパス水路との分岐部の上流位置に
設けたが、合流部の下流に設けCも良い。Although the throttle was provided upstream of the branching portion between the heat exchanger and the bypass waterway, it may also be provided downstream of the converging portion.
燃焼にカスを用いた例を示したが、重油や重油など液体
燃料を用いた給湯器に適用しても良い。Although we have shown an example in which waste is used for combustion, the present invention may also be applied to water heaters that use liquid fuel such as heavy oil or fuel oil.
第1図は本発明の構成を示すブロック図、第2図はバイ
パスミキシンク式のガス給湯器の概略構成図、第3図は
制御装置の概略ブロック図である。
図中 1・・・熱交換器 2・バイパス水路3・・
絞り 4・・絞り弁
5・・絞り弁制御f段
6・・・開度補正手段
7・
記憶手段
8・・制御装置
代
理
人
石
黒
健FIG. 1 is a block diagram showing the configuration of the present invention, FIG. 2 is a schematic configuration diagram of a bypass mixing type gas water heater, and FIG. 3 is a schematic block diagram of a control device. In the diagram 1...Heat exchanger 2.Bypass waterway 3...
Throttle 4... Throttle valve 5... Throttle valve control f stage 6... Opening correction means 7 Memory means 8... Control device agent Ken Ishiguro
Claims (1)
換し、水を加熱する熱交換器と、 (b)該熱交換器をバイパスするバイパス水路と、(c
)前記熱交換器と前記バイパス水路との分岐部の上流、
または合流部の下流に、前記熱交換器と前記バイパス水
路とを通過する水の総量を規制する絞りと、 (d)前記バイパス水路に設けられ、開度の調節を行う
ことにより、前記バイパス水路を通過する水量の調節を
行う絞り弁と、 (e)入水量、設定温度、入水温度等から設定温度を得
るに必要な前記絞り弁の開度を決定する絞り弁制御手段
、出湯温度より前記絞り弁の開度を補正する開度補正手
段、該開度補正手段による補正量を記憶する記憶手段を
備え、 出湯開始時に、前記記憶手段に記憶された前回の出湯時
の補正量を加味して前記絞り弁の開度を決定する制御装
置と を具備するバイパスミキシング式給湯器。[Claims] 1) (a) A heat exchanger that heats water by exchanging heat obtained by combustion of fuel with water; (b) A bypass waterway that bypasses the heat exchanger; (c
) upstream of the branching point between the heat exchanger and the bypass waterway;
or a constrictor downstream of the confluence part that regulates the total amount of water passing through the heat exchanger and the bypass waterway; (e) a throttle valve control means that determines the opening degree of the throttle valve necessary to obtain the set temperature from the amount of water entering, the set temperature, the water entering water temperature, etc.; An opening correction means for correcting the opening of the throttle valve, and a storage means for storing the correction amount by the opening correction means, and when starting hot water dispensing, the correction amount for the previous hot water tapping stored in the storage means is taken into account. and a control device that determines the opening degree of the throttle valve.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP63220719A JPH0633903B2 (en) | 1988-09-02 | 1988-09-02 | Bypass mixing type water heater |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP63220719A JPH0633903B2 (en) | 1988-09-02 | 1988-09-02 | Bypass mixing type water heater |
Publications (2)
Publication Number | Publication Date |
---|---|
JPH0268449A true JPH0268449A (en) | 1990-03-07 |
JPH0633903B2 JPH0633903B2 (en) | 1994-05-02 |
Family
ID=16755444
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP63220719A Expired - Lifetime JPH0633903B2 (en) | 1988-09-02 | 1988-09-02 | Bypass mixing type water heater |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH0633903B2 (en) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0476350A (en) * | 1990-07-16 | 1992-03-11 | Noritz Corp | Hot water feeder |
JPH04236056A (en) * | 1991-01-16 | 1992-08-25 | Noritz Corp | Apparatus for hot-water supply of bypass-mixing type |
JPH04350457A (en) * | 1991-05-28 | 1992-12-04 | Noritz Corp | Controlling method for bypass mixing |
JPH0579696A (en) * | 1991-09-25 | 1993-03-30 | Harman Co Ltd | Hot water supply controller |
JPH06288639A (en) * | 1992-05-07 | 1994-10-18 | Noritz Corp | Control method for water heater |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS58172756U (en) * | 1982-05-14 | 1983-11-18 | リンナイ株式会社 | water heater |
JPS59189970U (en) * | 1983-06-03 | 1984-12-17 | 株式会社 ガスタ− | Proportional control type gas water heater flow control device |
JPS603723A (en) * | 1983-06-22 | 1985-01-10 | Matsushita Electric Ind Co Ltd | Mixing device of hot water and cold water |
JPS60245947A (en) * | 1984-05-18 | 1985-12-05 | Matsushita Electric Ind Co Ltd | Hot-water supply control device |
JPS63153363A (en) * | 1987-11-06 | 1988-06-25 | Matsushita Electric Ind Co Ltd | Hot-water supplier, mixing hot-water with water |
-
1988
- 1988-09-02 JP JP63220719A patent/JPH0633903B2/en not_active Expired - Lifetime
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS58172756U (en) * | 1982-05-14 | 1983-11-18 | リンナイ株式会社 | water heater |
JPS59189970U (en) * | 1983-06-03 | 1984-12-17 | 株式会社 ガスタ− | Proportional control type gas water heater flow control device |
JPS603723A (en) * | 1983-06-22 | 1985-01-10 | Matsushita Electric Ind Co Ltd | Mixing device of hot water and cold water |
JPS60245947A (en) * | 1984-05-18 | 1985-12-05 | Matsushita Electric Ind Co Ltd | Hot-water supply control device |
JPS63153363A (en) * | 1987-11-06 | 1988-06-25 | Matsushita Electric Ind Co Ltd | Hot-water supplier, mixing hot-water with water |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0476350A (en) * | 1990-07-16 | 1992-03-11 | Noritz Corp | Hot water feeder |
JPH04236056A (en) * | 1991-01-16 | 1992-08-25 | Noritz Corp | Apparatus for hot-water supply of bypass-mixing type |
JPH04350457A (en) * | 1991-05-28 | 1992-12-04 | Noritz Corp | Controlling method for bypass mixing |
JPH0579696A (en) * | 1991-09-25 | 1993-03-30 | Harman Co Ltd | Hot water supply controller |
JPH06288639A (en) * | 1992-05-07 | 1994-10-18 | Noritz Corp | Control method for water heater |
Also Published As
Publication number | Publication date |
---|---|
JPH0633903B2 (en) | 1994-05-02 |
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