JPH04350415A - Hot water temperature adjusting device for gas water boiler - Google Patents
Hot water temperature adjusting device for gas water boilerInfo
- Publication number
- JPH04350415A JPH04350415A JP3171404A JP17140491A JPH04350415A JP H04350415 A JPH04350415 A JP H04350415A JP 3171404 A JP3171404 A JP 3171404A JP 17140491 A JP17140491 A JP 17140491A JP H04350415 A JPH04350415 A JP H04350415A
- Authority
- JP
- Japan
- Prior art keywords
- gas
- flow rate
- water
- circuit
- state
- 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 143
- 230000001105 regulatory effect Effects 0.000 claims description 10
- 238000011144 upstream manufacturing Methods 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 8
- 230000007423 decrease Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 230000002596 correlated effect Effects 0.000 description 1
- 230000000875 corresponding effect Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
Landscapes
- Instantaneous Water Boilers, Portable Hot-Water Supply Apparatuses, And Control Of Portable Hot-Water Supply Apparatuses (AREA)
- Control Of Combustion (AREA)
Abstract
Description
【0001】0001
【産業上の利用分野】本発明は、ガス湯沸器の湯温調節
装置に関するものであり、低温で且小湯量の出湯状態を
可能にして水及びガスの無駄な消費を防止するものであ
る。[Industrial Application Field] The present invention relates to a hot water temperature regulating device for a gas water heater, which enables hot water to be dispensed at a low temperature and with a small amount of water, thereby preventing wasteful consumption of water and gas. .
【0002】0002
【従来技術及び課題】ガス湯沸器の湯温調節装置として
、すでに、実公昭58−25241号公報に開示された
ものがある。この従来のものでは、図9のように、ガス
回路(1) にガス量調節弁(11)を設けると共に水
回路(2) にも水量調節弁(21)を設け、これら両
方の調節弁を一定の連動関係に置いたものである。BACKGROUND OF THE INVENTION A hot water temperature regulating device for a gas water heater has already been disclosed in Japanese Utility Model Publication No. 58-25241. In this conventional system, as shown in Fig. 9, a gas flow control valve (11) is provided in the gas circuit (1), and a water flow control valve (21) is also provided in the water circuit (2), and both of these control valves are They are placed in a certain interlocking relationship.
【0003】この従来のものでは、前記連動関係は大水
量−小ガス量状態から、小水量−大ガス量状態に変化さ
せ得るように設定されており、前者の設定条件では低温
度の湯が多量に取出され、後者の設定条件では、少量の
高温度の湯が取出されることとなり、この間で湯温が調
節できる。この場合、ガス量を一定にして水量のみを調
節する形式に比べて湯温調節範囲が広くなる。[0003] In this conventional system, the interlocking relationship is set so that it can be changed from a large water flow/small gas flow state to a small water flow/large gas flow state, and under the former setting condition, low temperature hot water is In the latter setting condition, a small amount of high-temperature hot water is taken out, and the temperature of the hot water can be adjusted during this time. In this case, the hot water temperature adjustment range is wider than in a system in which only the amount of water is adjusted while keeping the amount of gas constant.
【0004】しかしながら、この従来のものでは、上記
のように、低温度域の湯を取出す場合等では、そのとき
の湯量が多いことから、使用条件によっては、湯量が過
多となり、湯が無駄に消費される。本発明は、このよう
な、水回路(2) に挿入した湯量調節弁(21)とガ
ス回路(1)に挿入したガス量調節弁(11)とを連動
させて湯温を調節するものにおいて、湯の無駄な使用を
防止できるようにするため、各設定温度で小湯量の出湯
条件を設定できるようにすることをその技術的課題とす
る。[0004] However, with this conventional system, as mentioned above, when taking out hot water in a low temperature range, the amount of hot water at that time is large, so depending on the usage conditions, the amount of hot water may be excessive and the hot water may be wasted. consumed. The present invention is directed to such a device that adjusts the temperature of hot water by interlocking the hot water flow control valve (21) inserted into the water circuit (2) and the gas flow control valve (11) inserted into the gas circuit (1). The technical problem is to be able to set the hot water supply conditions for a small amount of hot water at each set temperature in order to prevent the wasteful use of hot water.
【0005】[0005]
【技術的手段】上記技術的課題を解決するために講じた
本発明の技術的手段は、『前記ガス回路(1) には前
記ガス量調節弁(11)への流入ガス量を制限できる位
置に別個の第1流量絞り手段(3a)を、水回路(2)
には水量調節弁(21)への流入水量を制限できる位
置に別個の第2流量絞り手段(3b)をそれぞれ挿入し
、これら第1,第2流量絞り手段(3a)(3b)を絞
り状態と非絞り状態の二状態にセットし得る構成とする
とともに外部から同時に同状態に操作可能にし、前記絞
り状態におけるガス回路(1)の最大流量をバーナのノ
ズル径によって設定される流量以下の所定の値に設定す
ると共に、前記絞り状態における水回路(2) の最小
流量を第2流量絞り手段(3b)が非絞り状態にあると
きの最小流量値以下の所定の値に設定した』ことである
。[Technical Means] The technical means of the present invention taken to solve the above technical problem is as follows: ``The gas circuit (1) has a position that can restrict the amount of gas flowing into the gas amount control valve (11). a separate first flow restricting means (3a) in the water circuit (2).
Separate second flow rate restricting means (3b) are respectively inserted in positions that can restrict the amount of water flowing into the water volume control valve (21), and these first and second flow rate restricting means (3a) (3b) are in a throttled state. It has a configuration that can be set to two states, ie, a non-throttled state, and a non-throttled state, and can be operated simultaneously from the outside to the same state, and the maximum flow rate of the gas circuit (1) in the throttled state is set to a predetermined flow rate or less set by the nozzle diameter of the burner. In addition, the minimum flow rate of the water circuit (2) in the throttled state is set to a predetermined value that is less than the minimum flow rate when the second flow rate restricting means (3b) is in the non-throttled state. be.
【0006】[0006]
【作用】本発明の上記技術的手段は、次のように作用す
る。二つの第1,第2流量絞り手段(3a)(3b)が
共に非絞り状態にあるときにはガス回路(1) 及び水
回路(2) の流量は共に非絞り状態にあるから、ガス
量調節弁(11),水量調節弁(21)の互いに連動す
る調節によって、すなわち、湯温調節装置の操作によっ
て湯温が調節され、従来と同様の出湯温状態となる。[Operation] The above technical means of the present invention operates as follows. When the two first and second flow rate restricting means (3a) and (3b) are both in the non-restricted state, the flow rates of the gas circuit (1) and the water circuit (2) are both in the non-restricted state, so the gas amount control valve (11) The hot water temperature is adjusted by adjusting the water flow control valves (21) in conjunction with each other, that is, by operating the hot water temperature adjusting device, and the hot water temperature is the same as in the conventional case.
【0007】次いで、第1,第2流量絞り手段(3a)
(3b)を絞り状態にすると、第1流量絞り手段(3a
)はガス量調節弁(11)への流入ガス量を制限させ得
る位置に、第2流量絞り手段(3b)は水量調節弁(2
1)への流入水量を制限させ得る位置にそれぞれ挿入さ
れていることから、各調節弁への流入量が制限された状
態においてこれらの操作により流量が調節される。Next, the first and second flow restricting means (3a)
(3b) is put into the throttle state, the first flow rate restricting means (3a
) is located at a position where the amount of gas flowing into the gas amount regulating valve (11) can be restricted, and the second flow rate restricting means (3b) is located at a position where the second flow rate restricting means (3b) is located at a position where the amount of gas flowing into the gas amount regulating valve (11) can be restricted.
1), the flow rate is adjusted by these operations in a state where the amount of water flowing into each control valve is restricted.
【0008】又、絞り状態におけるガス回路(1) の
最大流量をバーナのノズル径によって設定される流量以
下の所定の値に設定している。ところで、ガスバーナで
は、これに対向するノズルによって燃焼できるガス量の
最大値が決定されるものであることから、ガス回路(1
) では、ガス量調節弁(11)の調節範囲においては
、ガス流量が前記最大値以下の大流量〜小流量の範囲で
変化する。
さらに、前記絞り状態における水回路(2) の最小流
量を第2流量絞り手段(3b)が非絞り状態にあるとき
の最小流量値以下の所定の値に設定したことから、水回
路(2) の水量が減少した状態に設定され得る。従っ
て、湯量が減少された状態となりこのときの湯温はガス
量調節弁(11)及び水量調節弁(21)の調節条件に
見合ったものとなる。Further, the maximum flow rate of the gas circuit (1) in the throttled state is set to a predetermined value that is lower than the flow rate set by the nozzle diameter of the burner. By the way, in a gas burner, the maximum amount of gas that can be combusted is determined by the nozzle facing it, so the gas circuit (1
) In the adjustment range of the gas amount control valve (11), the gas flow rate changes in a range from a large flow rate to a small flow rate that is less than the maximum value. Furthermore, since the minimum flow rate of the water circuit (2) in the throttled state is set to a predetermined value below the minimum flow rate value when the second flow rate restricting means (3b) is in the non-throttled state, the water circuit (2) The amount of water may be set to be reduced. Therefore, the amount of hot water is reduced, and the temperature of the hot water at this time matches the adjustment conditions of the gas amount regulating valve (11) and the water amount regulating valve (21).
【0009】[0009]
【効果】本発明は、上記構成であるから、次の特有の効
果を有する。ガス量調節弁(11),水量調節弁(21
)の調節のみによる湯温調整に加えて、第1,第2流量
絞り手段(3a)(3b)の同時操作により小水量−小
ガス量状態が設定できるから、第1,第2流量絞り手段
(3a)(3b)の操作により使用条件に合せた湯温設
定が可能となり、湯の無駄な使用が防止できる。[Effects] Since the present invention has the above configuration, it has the following unique effects. Gas flow control valve (11), water flow control valve (21)
) In addition to adjusting the hot water temperature by adjusting only the first and second flow rate restricting means (3a) and (3b), the small water amount-small gas amount state can be set by simultaneously operating the first and second flow rate restricting means (3a) and (3b). By the operations (3a) and (3b), it becomes possible to set the hot water temperature according to the conditions of use, and it is possible to prevent wasted use of hot water.
【0010】(実施態様)本発明の実施態様は、第1,
第2流量絞り手段(3a)(3b)を絞り状態としたと
きと、非絞り状態としたときとで湯温調節装置による設
定湯温が変化しないように、ガス回路(1) 及び水回
路(2) の前記各状態における流量を所定の値に設定
したことである。(Embodiments) The embodiments of the present invention are as follows:
The gas circuit (1) and the water circuit ( 2) The flow rate in each of the above states is set to a predetermined value.
【0011】この実施態様によれば、第1,第2流量絞
り手段(3a)(3b)を絞り状態にセットして、小湯
量状態としたときと、第1,第2流量絞り手段(3a)
(3b)を非絞り状態にした通常使用状態の両方におい
て同じ出湯温度となり、何れの使用状態でも湯温調節装
置の操作部の湯温表示と出湯温度が一致する。従って、
通常使用状態から小湯量状態に変えたときに湯温が変化
する不都合が解消される。According to this embodiment, when the first and second flow rate restricting means (3a) and (3b) are set to the restricted state and a small water flow state is established, the first and second flow rate restricting means (3a) )
The hot water temperature is the same in both the normal usage conditions (3b) in the non-throttled state, and the hot water temperature display on the operating section of the hot water temperature adjustment device and the hot water temperature match in both usage conditions. Therefore,
This eliminates the inconvenience that the hot water temperature changes when changing from a normal usage state to a low water flow state.
【0012】0012
【実施例】図1に示す実施例では、ガス量調節弁(11
)と直列に第1流量絞り手段(3a)としての第1絞り
弁(33)を挿入するとともに、水量調節弁(21)と
直列に第2流量絞り手段(3b)としての第2絞り弁(
34)を挿入して、これら第1絞り弁(33)及び第2
絞り弁(34)の弁軸を連結板(41)に連結して同時
に絞り状態と非絞り状態とにセットできるようにしたも
のであり、両者を絞り状態にすることで、小湯量状態が
得られる。[Embodiment] In the embodiment shown in FIG.
) is inserted in series with the first throttle valve (33) serving as the first flow rate restricting means (3a), and a second restricting valve (33) serving as the second flow rate restricting means (3b) is inserted in series with the water flow rate regulating valve (21).
34) and connect the first throttle valve (33) and the second throttle valve.
The valve stem of the throttle valve (34) is connected to the connecting plate (41) so that it can be set to a throttle state and a non-throttle state at the same time, and by setting both to the throttle state, a small water flow state can be obtained. It will be done.
【0013】尚、この実施例のものでは、板バネ(7)
(7)を用いたスナップアクション機構により第1絞り
弁(33),第2絞り弁(34)が二状態にセットされ
る構成としてあり、連結板(41)に設けた操作部(4
0)を引くと板バネ(7)(7)が同図の二点鎖線の状
態となって第1絞り弁(33),第2絞り弁(34)が
非絞り状態となる。逆に、この状態から操作部(40)
を押込むと、ガス回路(1) は第1絞り弁(33)に
設けた第1孔部(14)のみを介して連通し、他方、水
回路(2) は第2絞り弁(34)の第2孔部(15)
のみを介して連通し、ガス回路(1) 及び水回路(2
) が絞り状態となる。[0013] In this embodiment, the leaf spring (7)
(7) The first throttle valve (33) and the second throttle valve (34) are configured to be set in two states by a snap action mechanism using
0), the leaf springs (7) (7) become in the state shown by the two-dot chain line in the figure, and the first throttle valve (33) and the second throttle valve (34) become non-throttling states. Conversely, from this state, the operation section (40)
When pushed in, the gas circuit (1) communicates only through the first hole (14) provided in the first throttle valve (33), while the water circuit (2) communicates with the second throttle valve (34). 2nd hole (15)
gas circuit (1) and water circuit (2).
) becomes the aperture state.
【0014】次に、上記ガス量調節弁(11)は軸部の
回転によって進退するニードル弁とし、他方の水量調節
弁(21)は、一定位置における回動角度によって開度
が変化する形式の流量調節弁としてあり、これらガス量
調節弁(11)と水量調節弁(21)とは連動機構によ
り同時に開度変化する構成となっており、この連動機構
として、ラック(61)と、これにかみ合うピニオン(
62)(63)との組み合わせを採用し、このラック(
61)に設けた操作つまみ(65)が湯温調節装置の操
作部となる。Next, the gas amount control valve (11) is a needle valve that moves forward and backward by the rotation of its shaft, and the other water amount control valve (21) is a type whose opening degree changes depending on the rotation angle at a fixed position. These gas flow control valves (11) and water flow control valves (21) are configured to change their opening degrees simultaneously by an interlocking mechanism, and this interlocking mechanism includes a rack (61) and a rack (61). The meshing pinion (
62) (63), this rack (
The operation knob (65) provided at 61) serves as the operation section of the hot water temperature adjustment device.
【0015】ラック(61)の操作つまみ(65)の近
傍には図3の如く温度表示部(64)が設けられ、この
表示温度は第1絞り弁(33),第2絞り弁(34)が
開弁した通常使用時の出湯温度と対応する。また、この
出湯温度は、図2の(A) の実線で示すように直線的
に変化するようになっている。この為、ピニオン(62
),(63)の直径の比率を所定に設定してラック(6
1)の操作によるガス量調節弁(11),水量調節弁(
21)の回動量比率、つまり、絞り量の変化度合を相関
させてある。尚、ここで、ガス回路(1) の流量の最
大値(Q2)はガスバーナのノズル(N) によって決
定される
[非絞り状態の湯温調節]以上により、第1・第2絞り
弁(33)(34)の開弁時には次のように湯温調節が
行われる。A temperature display section (64) is provided near the operating knob (65) of the rack (61) as shown in FIG. This corresponds to the hot water temperature during normal use when the valve is open. Further, the tapped water temperature is designed to change linearly as shown by the solid line in FIG. 2(A). For this reason, the pinion (62
), (63) are set to a predetermined ratio, and the rack (6
1), the gas flow control valve (11) and water flow control valve (
21), the rotation amount ratio, that is, the degree of change in the aperture amount is correlated. Here, the maximum flow rate (Q2) of the gas circuit (1) is determined by the nozzle (N) of the gas burner [hot water temperature adjustment in non-throttled state]. ) (34), the hot water temperature is adjusted as follows.
【0016】この条件下では、水回路(2) の水量は
、操作つまみ(65)の操作量に応じて図2の(A)
の一点鎖線で示す変化となり、ガス回路(1) のガス
量変化は同図の(A) の破線で示す変化となる。つま
り、第1絞り弁(33)が開弁状態にあることから、ガ
ス量調節弁(11)を介してバーナ(4) に供給され
るガス量の最大値は、バーナ(4) に対応するノズル
(N)によって設定される最大ガス量(Q2)となる。
従って、操作つまみの操作量零点では、バーナ(4)
への供給ガス量は、ガス量調節弁(11)を介する最小
流量値(Q1)となり、前記操作量が特定点(P) に
達した前記最大ガス量(Q2)に達し、以後は、前記操
作量を多くしても、ガス量は変化しない。Under this condition, the amount of water in the water circuit (2) changes as shown in (A) in FIG. 2 depending on the amount of operation of the operation knob (65).
The change in the amount of gas in the gas circuit (1) is shown by the dashed line in (A) of the same figure. In other words, since the first throttle valve (33) is in the open state, the maximum amount of gas supplied to the burner (4) via the gas amount adjustment valve (11) corresponds to the amount of gas supplied to the burner (4). This is the maximum gas amount (Q2) set by the nozzle (N). Therefore, at the zero point of the operation amount of the operation knob, the burner (4)
The amount of gas supplied to the gas becomes the minimum flow rate value (Q1) through the gas amount control valve (11), and reaches the maximum gas amount (Q2) at which the operation amount reaches the specific point (P). Even if the operation amount is increased, the gas amount does not change.
【0017】このとき、第2絞り弁(34)が開弁され
ていることから、水回路(2) の水量は水量調節弁(
21)の調整度合に一致したものとなる。前記第2絞り
弁(34)の開度変化は、同図のように、操作量が特定
点(P) 以下の範囲では最大流量(Q5)に設定され
、これよりも操作量が多くなると直線的に流量が減少し
て操作つまみの最大操作量位置では最小流量(Q4)と
なるように設定されている。[0017] At this time, since the second throttle valve (34) is open, the water volume in the water circuit (2) is controlled by the water volume control valve (34).
This corresponds to the degree of adjustment in 21). As shown in the figure, the opening degree change of the second throttle valve (34) is set to the maximum flow rate (Q5) when the manipulated variable is below a specific point (P), and when the manipulated variable is greater than this, it changes in a straight line. The flow rate is set so that the flow rate decreases and becomes the minimum flow rate (Q4) at the maximum operation amount position of the operation knob.
【0018】従って、操作つまみの操作量が特定点(P
) に達するまでの範囲では、水量一定の条件でガス量
が変化して出湯温度が直線的に変化し、これより操作量
の多い区間ではガス量一定の条件で水量が変化して出湯
温度が直線的に変化する。
[絞り状態の湯温調節]次に、第1・第2絞り弁(33
)(34)が閉弁状態にあるときには次のような湯温調
節となる。Therefore, the operating amount of the operating knob is at a specific point (P
), the gas volume changes and the hot water temperature changes linearly under the condition that the water volume is constant, and in the area where the amount of operation is greater than this, the water volume changes and the hot water tap temperature changes under the condition that the gas volume is constant. Changes linearly. [Adjusting hot water temperature in throttle state] Next, adjust the first and second throttle valves (33
) (34) is in the closed state, the hot water temperature is adjusted as follows.
【0019】前記絞り状態におけるガス回路(1) の
流量の最大値はノズルのみによって設定される前記最大
値よりも小さく第1孔部(14)による設定流量(Q6
)となり、この結果、ガス量調節弁(11)に流入する
流量が絞られた状態となっている。従って、この絞り状
態においてガス量調節弁(11)を操作したときの流量
は図2の(B) の破線で示すように変化する。又、絞
り状態における水回路(2) の流量は、第2孔部(1
5)によって設定されることとなり、この流量は同図(
B) の一点鎖線で示すように一定の値(Q3)となる
。The maximum value of the flow rate of the gas circuit (1) in the throttled state is smaller than the maximum value set only by the nozzle, and the flow rate set by the first hole (14) (Q6
), and as a result, the flow rate flowing into the gas amount control valve (11) is restricted. Therefore, when the gas amount control valve (11) is operated in this throttled state, the flow rate changes as shown by the broken line in FIG. 2(B). In addition, the flow rate of the water circuit (2) in the throttled state is the same as that of the second hole (1).
5), and this flow rate is shown in the same figure (
B) becomes a constant value (Q3) as shown by the dashed line.
【0020】この場合には、小湯量状態では、同図の実
線の(B) で示すように、操作量が特定点(P1)を
越えると湯温調節装置の調節に関わらず最高温度が一定
の値を維持する状態が生じるものとなる。図4に示す第
2実施例は、通常のガス湯沸器において採用されるガス
ガバナ(35)の弁体を上記第1実施例における第1絞
り弁(33)に対応させ、水回路側を開放した場合に自
動的にガス回路を開弁する水圧応動ガス弁(38)の水
回路側の弁体を上記第1実施例における第2絞り弁(3
4)に対応させるようにし、ガスガバナ(35)の二次
側の回路を水圧応動ガス弁(38)のガス回路に接続し
たものである。In this case, when the amount of hot water is small, as shown by the solid line (B) in the figure, when the manipulated variable exceeds a specific point (P1), the maximum temperature remains constant regardless of the adjustment of the hot water temperature control device. A state will occur in which the value of is maintained. In the second embodiment shown in FIG. 4, the valve body of the gas governor (35) employed in a normal gas water heater corresponds to the first throttle valve (33) in the first embodiment, and the water circuit side is opened. The valve body on the water circuit side of the water pressure-responsive gas valve (38) that automatically opens the gas circuit when
4), and the secondary circuit of the gas governor (35) is connected to the gas circuit of the hydraulically responsive gas valve (38).
【0021】前記ガスガバナ(35)及び水圧応動ガス
弁(38)は周知の構成であり、二次圧調整バネを調節
することによって、つまり、このバネの付勢力を大きく
設定した場合に二次圧が増大して二次側への流量が増大
し、逆に、前記二次圧調整バネの付勢力を小さく設定し
た場合には、二次圧が減少して二次側への流量が少なく
なる。
この実施例では、この作用を利用した第1,第2流量絞
り手段(3a)(3b)としている。The gas governor (35) and the hydraulically responsive gas valve (38) have a well-known configuration, and by adjusting the secondary pressure adjustment spring, that is, when the biasing force of this spring is set large, the secondary pressure can be adjusted. increases, and the flow rate to the secondary side increases. Conversely, when the biasing force of the secondary pressure adjustment spring is set to a small value, the secondary pressure decreases and the flow rate to the secondary side decreases. . In this embodiment, the first and second flow rate restricting means (3a) (3b) utilize this effect.
【0022】このため、前記ガスガバナ(35)の二次
圧調整バネ(36)に第1バネ押え(37a) を対接
させ、他方、水圧応動ガス弁(38)の二次圧調整バネ
(39)に第2バネ押え(37b) を対接させ、これ
らバネ押えを連結板(41)により連結して、この操作
軸(43)に機構部(42)を対応させている。前記機
構部(42)としては、公知のものがそのまま採用可能
であり、一例としては、図5に示すような、ハート型の
カム溝(44)を具備するカム板(45)を操作軸(4
3)の近傍し固定し、操作軸(43)から突出させたピ
ン(46)をこのカム溝(44)に嵌め込んで、操作軸
(43)にバネ(47)に復帰方向付勢力を常時作用さ
せる構成が採用出来る。For this purpose, the first spring holder (37a) is brought into contact with the secondary pressure adjustment spring (36) of the gas governor (35), and on the other hand, the secondary pressure adjustment spring (39) of the water pressure responsive gas valve (38) is placed in contact with the secondary pressure adjustment spring (36) of the gas governor (35). ) is brought into contact with a second spring press (37b), these spring presses are connected by a connecting plate (41), and the mechanism section (42) is made to correspond to this operating shaft (43). As the mechanism section (42), any known mechanism can be used as is. For example, as shown in FIG. 4
A pin (46) that is fixed near the operating shaft (43) and protrudes from the operating shaft (43) is fitted into this cam groove (44) to constantly apply a biasing force in the return direction to the spring (47) on the operating shaft (43). It is possible to adopt a configuration that makes it work.
【0023】この場合、操作軸(43)を押込んで、機
構部(42)によりこの押込み状態にセットすると、二
次圧調整バネ(36)(39)が共に強付勢状態となり
、ガス回路(1) 及び水回路(2) は非絞り状態と
なる。この状態は通常使用状態に一致する。この状態か
ら、操作軸(43)を押込むと機構部(42)の作用に
より第1バネ押え(37a),第2バネ押え(37b)
が初期状態に復帰して二次圧調整バネ(36)(39
)が弱付勢状態となる。これにより水圧応動ガス弁(3
8)を介して湯温調節装置内のガス量調節弁(11)に
流入するガス圧が低く設定されることとなり、これに応
じてガス量調節弁(11)によって設定されるガス量が
ガス量調節弁(11)による調節範囲の全域において減
少される。尚、このときには、ガス量調節弁(11)を
介するガス圧そのものが低くなることから、ガス量調節
弁(11)の操作による流量変化は、通常使用時におけ
るよりも少ないガス量域において同じ傾向の変化を示す
。In this case, when the operating shaft (43) is pushed in and set in this pushed state by the mechanism (42), the secondary pressure adjustment springs (36) and (39) are both strongly biased, and the gas circuit ( 1) and the water circuit (2) are in a non-throttled state. This state corresponds to the normal usage state. From this state, when the operating shaft (43) is pushed in, the first spring holder (37a) and second spring holder (37b) are moved by the action of the mechanism (42).
returns to its initial state and the secondary pressure adjustment springs (36) (39)
) becomes weakly energized. This allows the water pressure responsive gas valve (3
8), the gas pressure flowing into the gas amount control valve (11) in the hot water temperature control device is set to be low, and accordingly, the gas amount set by the gas amount control valve (11) is set to a low level. It is reduced over the entire adjustment range by the quantity control valve (11). At this time, since the gas pressure itself through the gas amount control valve (11) becomes low, the flow rate change due to the operation of the gas amount control valve (11) has the same tendency in the gas amount range where it is smaller than during normal use. shows the change in
【0024】他方の水量調節弁(21)に流入する水圧
が同様に低く設定されることとなり、水量調節弁(21
)によって設定される水量もこの水量調節弁(21)に
よる調節範囲の全域において減少される。このようにし
て、ガス回路(1) 及び水回路(2) が絞り状態と
なり、小湯量状態で使用できる。この絞り状態では、非
絞り状態における操作つまみの操作量に対応するガス量
及び水量の変化グラフ((A) の破線及び(A) の
一点鎖線)がそのまま、下方に平行移動されたものとな
り、図6に示す(B) の破線又は(B) の一点鎖線
で示すものとなる。このとき、前記(A)の線と(B)
の線との平行移動距離は、二次圧調整バネ(36)(
39)の付勢力変化に伴う二次圧変化量に対応した流量
値(Q) となる。The water pressure flowing into the other water flow control valve (21) is similarly set low, and the water flow control valve (21)
) is also reduced over the entire range of adjustment by this water flow control valve (21). In this way, the gas circuit (1) and water circuit (2) are in a throttled state and can be used with a small amount of hot water. In this throttling state, the graphs of changes in the amount of gas and water (broken line in (A) and dashed-dotted line in (A)) corresponding to the amount of operation of the operating knob in the non-throttling state are shifted downward in parallel, This is shown by the broken line in (B) or the dashed-dotted line in (B) shown in FIG. At this time, the line (A) and (B)
The parallel movement distance with the line is the secondary pressure adjustment spring (36) (
39) The flow rate value (Q) corresponds to the amount of change in secondary pressure due to change in biasing force.
【0025】この実施例の場合も、二次圧調整バネ(3
6)(39)が共に強付勢状態とした非絞り状態におい
ては、ガス量及び水量の変化は、図2の場合と同様とな
り、湯温も実線で示すように、直線的に変化する。尚、
バイパス加熱方式の湯沸器では、図7の如く第2流量絞
り手段(3b)を熱交換器(71)を介さないバイパス
水回路(70)に挿入するようにしてもよい。In the case of this embodiment as well, the secondary pressure adjustment spring (3
6) In the non-restricted state where both (39) are in the strongly biased state, the gas amount and water amount change in the same way as in the case of FIG. 2, and the hot water temperature also changes linearly, as shown by the solid line. still,
In a bypass heating type water heater, the second flow rate restricting means (3b) may be inserted into the bypass water circuit (70) without passing through the heat exchanger (71), as shown in FIG.
【0026】又、水量調節弁(21)の下流側の回路構
成を、図8のように、大流量回路(22)とこれを迂回
し且オリフィス(24)を挿入した小流量回路(23)
との組合せ流路とし、前記大流量回路(22)を開閉す
る開閉弁(32)を設ける構成としてもよい。この場合
、前記開閉弁(32)を閉弁させると、小流量回路(2
3)のオリフィス(24)によって設定される流量が熱
交換器側に流れることとなり、水回路(2) が絞り状
態となる。Furthermore, the circuit configuration on the downstream side of the water flow control valve (21), as shown in FIG. 8, includes a large flow circuit (22) and a small flow circuit (23) bypassing this and inserting an orifice (24).
It is also possible to form a combined flow path with an on-off valve (32) for opening and closing the large flow rate circuit (22). In this case, when the on-off valve (32) is closed, the small flow circuit (2
The flow rate set by the orifice (24) in step 3) will flow to the heat exchanger side, and the water circuit (2) will be in a throttled state.
【0027】このものでは、大流量回路(22)を開閉
する開閉弁(32)とオリフィス(24)を具備する小
流量回路(22)の組合せが第2流量絞り手段(3b)
となる。In this device, a combination of an on-off valve (32) for opening and closing the large flow rate circuit (22) and a small flow rate circuit (22) equipped with an orifice (24) is the second flow rate restricting means (3b).
becomes.
【図1】本発明の第1実施例のガス回路及び水回路の要
部説明図[Fig. 1] An explanatory diagram of main parts of a gas circuit and a water circuit according to a first embodiment of the present invention.
【図2】第2図は湯温調節による湯温変化、ガス量変化
及び水量変化を示す説明図[Figure 2] Figure 2 is an explanatory diagram showing changes in hot water temperature, gas amount changes, and water amount changes due to hot water temperature adjustment.
【図3】操作つまみ(65)と湯温表示の説明図[Figure 3] Explanatory diagram of the operation knob (65) and water temperature display
【図4
】第2実施例の要部説明図[Figure 4
] Main part explanatory diagram of the second embodiment
【図5】機構部(42)の要部説明図[Fig. 5] An explanatory diagram of the main parts of the mechanism section (42)
【図6】第2実施例の湯温調節による湯温変化、ガス量
変化及び水量変化を示す説明図FIG. 6 is an explanatory diagram showing changes in hot water temperature, gas amount, and water amount due to hot water temperature adjustment in the second embodiment.
【図7】他の実施例の要部説明図[Fig. 7] Main part explanatory diagram of another embodiment
【図8】第2流量絞り手段(3b)の他の例[Fig. 8] Another example of the second flow restricting means (3b)
【図9】従
来例の説明図[Fig. 9] Explanatory diagram of conventional example
(1) ・・・ガス回路 (11)・・・ガス量調節弁 (2) ・・・水回路 (21)・・・水量調節弁 (3a)・・・第1流量絞り手段 (3b)・・・第1流量絞り手段 (33)・・・第1絞り弁 (34)・・・第2絞り弁 (1)...Gas circuit (11)...Gas amount control valve (2)...Water circuit (21)...Water flow control valve (3a)...first flow rate restricting means (3b)...first flow restricting means (33)...First throttle valve (34)...Second throttle valve
Claims (1)
ガス回路(1)に挿入したガス量調節弁(11)とを連
動させて湯温を調節するようにした湯温調節装置を具備
するものにおいて、前記ガス回路(1) には前記ガス
量調節弁(11)への流入ガス量を制限できる位置に別
個の第1流量絞り手段(3a)を、水回路(2) には
水量調節弁(21)への流入水量を制限できる位置に別
個の第2流量絞り手段(3b)をそれぞれ挿入し、これ
ら第1,第2流量絞り手段(3a)(3b)を絞り状態
と非絞り状態の二状態にセットし得る構成とするととも
に外部から同時に同状態に操作可能にし、前記絞り状態
におけるガス回路(1) の最大流量をバーナのノズル
径によって設定される流量以下の所定の値に設定すると
共に、前記絞り状態における水回路(2) の最小流量
を第2流量絞り手段(3b)が非絞り状態にあるときの
最小流量値以下の所定の値に設定したガス湯沸器の湯温
調節装置。 ■ 第1,第2流量絞り手段(3a)(3b)を絞り
状態としたときと、非絞り状態としたときとで湯温調節
装置による設定湯温が変化しないように、ガス回路(1
) 及び水回路(2) の前記各状態における流量を所
定の値に設定した特許請求の範囲第1項に記載のガス湯
沸器の湯温調節装置。 ■ 第1流量絞り手段(3a)を、ガス流量調節弁(
11)と直列に設け且絞り状態と非絞り状態の二状態に
セットできるようにした第1絞り弁(33)とし、第二
流量絞り手段(3b)を、水量調節弁(21)と直列に
設け且絞り状態と非絞り状態の二状態にセットできるよ
うにした第2絞り弁(34)とした特許請求の範囲第1
項に記載のガス湯沸器の湯温調節装置。 ■ 第1流量絞り手段(3a)を、ガス回路(1)
のガス量調節弁(11)の上流側に設けたガスガバナ(
35)と、このガスガバナの二次圧調整バネ(36)を
強付勢状態と弱付勢状態にセットする第1バネ押え(3
7a) とし、第2流量絞り手段(3b)を、水回路(
2) の水量調節弁(21)の上流側に設けた水圧応動
ガス弁(38)とこの水圧応動ガス弁(38)の二次圧
調整バネ(39)を強付勢状態と弱付勢状態にセットす
る第2バネ押え(37b) とし、前記第1,第2バネ
押え(37a)(37b)を同時操作可能にした特許請
求の範囲第1項又は第2項に記載のガス湯沸器の湯温調
節装置。[Claims] ■ The water temperature is adjusted by interlocking the water flow control valve (21) inserted into the water circuit (2) and the gas flow control valve (11) inserted into the gas circuit (1). In the water circuit equipped with a hot water temperature regulating device, a separate first flow rate restricting means (3a) is provided in the gas circuit (1) at a position capable of restricting the amount of gas flowing into the gas amount regulating valve (11), and the water circuit (2) Separate second flow rate restricting means (3b) are inserted in positions that can restrict the amount of water flowing into the water volume control valve (21), and these first and second flow rate restricting means (3a) (3b) The gas circuit (1) has a configuration in which it can be set to two states, a throttled state and a non-throttled state, and can be operated into the same state simultaneously from the outside, and the maximum flow rate of the gas circuit (1) in the throttled state is the flow rate set by the nozzle diameter of the burner. In addition to setting the minimum flow rate of the water circuit (2) in the throttled state to a prescribed value below the minimum flow rate value when the second flow rate restricting means (3b) is in the non-throttled state. Water temperature adjustment device for gas water heaters. ■ The gas circuit (1
) and the water circuit (2) in each state are set to predetermined values. ■ The first flow rate restricting means (3a) is connected to the gas flow rate control valve (
A first throttle valve (33) is installed in series with the water flow rate regulating valve (21) and can be set in two states, a throttle state and a non-throttle state. Claim 1: A second throttle valve (34) that is provided and can be set to two states: a throttle state and a non-throttle state.
A water temperature adjustment device for a gas water heater as described in 2. ■ The first flow restricting means (3a) is connected to the gas circuit (1).
The gas governor (
35) and a first spring holder (3) that sets the secondary pressure adjustment spring (36) of this gas governor to a strongly biased state and a weakly biased state.
7a), and the second flow restricting means (3b) is connected to the water circuit (
2) The water pressure-responsive gas valve (38) provided upstream of the water flow control valve (21) and the secondary pressure adjustment spring (39) of this water-pressure-responsive gas valve (38) are in a strongly biased state and a weakly biased state. The gas water heater according to claim 1 or 2, further comprising: a second spring holder (37b) set at hot water temperature adjustment device.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP3171404A JPH04350415A (en) | 1991-07-11 | 1991-07-11 | Hot water temperature adjusting device for gas water boiler |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP3171404A JPH04350415A (en) | 1991-07-11 | 1991-07-11 | Hot water temperature adjusting device for gas water boiler |
Related Parent Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP60135749A Division JPS61291825A (en) | 1985-06-20 | 1985-06-20 | Temperature adjusting device of gas water heater |
Publications (2)
Publication Number | Publication Date |
---|---|
JPH04350415A true JPH04350415A (en) | 1992-12-04 |
JPH0563686B2 JPH0563686B2 (en) | 1993-09-13 |
Family
ID=15922527
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP3171404A Granted JPH04350415A (en) | 1991-07-11 | 1991-07-11 | Hot water temperature adjusting device for gas water boiler |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH04350415A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH07190481A (en) * | 1993-12-28 | 1995-07-28 | Rinnai Corp | Gas water heater |
-
1991
- 1991-07-11 JP JP3171404A patent/JPH04350415A/en active Granted
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH07190481A (en) * | 1993-12-28 | 1995-07-28 | Rinnai Corp | Gas water heater |
Also Published As
Publication number | Publication date |
---|---|
JPH0563686B2 (en) | 1993-09-13 |
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