KR100201594B1 - Water supply unit - Google Patents

Abstract

(Problem) The main circulation circuit branches between the discharge portion of the non-automatic lake water pump 15 and the inlet portion of the water tank 14, and the water tank 14 at the branch portion. In a hot water supply device having a heating circulation circuit and a bypass circuit (C) for returning to a circuit section of (), the air in the non-automatic lake pump (15) reliably during a trial operation for exhausting air such as a heating circulation circuit. Allow for exhaust.

(Solving means) Water supply control means (G) for starting water supply to the water tank (14) in response to an operation signal of the test run switch, and pump control means (F) for operating the non-automatic lake pump (15) in response to the operation signal. ), Exhaust determination means (D) which outputs an exhaust completion signal when exhaust of the heating circulation circuit and the like is completed, and the bypass until the exhaust completion signal is output after the non-automatic lake pump 15 is operated. Bypass circuit control means (E) for maintaining the pass circuit (C) in a blocked state and opening the bypass circuit (C) after the exhaust completion signal is output.

Description

Hot water device

The present invention relates to a hot water supply device, particularly a hot water supply device having a function of circulating hot water in a non-automatic lake water pump in a heating circuit such as floor heating.

As a hot water supply apparatus provided with the circulation circuit for heating, such as floor heating, there exists a schematic structure shown in FIG.

물탱크(14)

비자동호수펌프(15)로 순환하도록 형성되어 있다. 비자동호수펌프(15)를 사용한 것은, 같은 크기의 자동호수펌프를 사용한 경우보다도 많은 유량의 온수를 메인순환회로(10)내에 흐르게 할 수 있도록 하기 위함이다.The main circulation circuit 10 formed in the mechanism body 1 includes a main heat exchanger 12 constituting the circulating water heater 19.

Water Tank (14)

It is formed to circulate to the non-automatic lake pump 15. The non-automatic lake pump 15 is used so that hot water of a large flow rate can flow in the main circulation circuit 10 than when the automatic lake pump of the same size is used.

In the main circulation circuit 10, the downstream side of the main heat exchanger 12 and the water tank 14, the bypass circuit (C) having a function of reheating the bath water by heat exchange with the bath water in the bathtub (51). Connected by. The bypass circuit C is provided with a reheat heat exchanger 13 for reheating the bath water, and a tub 51 is provided in the tub side circulation circuit 5 of the reheat heat exchanger 13. And a reheating pump 53 is provided.

In addition, the first heating circulation circuit 3 branched from the discharge side of the non-automatic lake pump 15 is provided with a heat radiating mat 31 which is a heating radiator used for floor heating. Downstream circuit is connected to the water tank 14. In the main circulation circuit 10, a throttle 23 is formed between the branch of the bypass circuit C and the water tank 14, and both ends of the throttle 23 are circulated for the second heating. The circuit 2 is connected. A fan convector 21, which is a radiator for heating, is connected to the hot water outlet 29 installed in the second heating circuit 2 and provided on the interior wall as necessary.

In such a hot water supply device, a trial operation operation after installation of a mechanism is performed to exhaust the heating circulation circuits such as the first and second heating circulation circuits 3 and 2 having the heat radiators such as the fan convection radiator 21 and the heat radiating mat 31. Is done.

First, when the fan convection radiator 21 is provided, the operation for turning ON the terminal operation switch provided in the main body of the fan convection radiator 21 is performed in advance. In other words, by opening the circulating water circuit in the fan convection radiator 21, the circuit is allowed to be evacuated.

제 1 난방용 순환회로(3)의 방열매트(31)

물탱크(14)

비자동호수펌프(15)로 순환하는 회로와, 비자동호수펌프(15)

주열교환기(12)

제 2 난방용 순환회로(2)의 팬대류방열기(21)

물탱크(14)

비자동호수펌프(15)로 순환하는 회로와, 메인순환회로(10)로 물이 순환하여 상기 각회로에 체류하고 있던 공기가 물탱크(14)내로 이동한다. 이에 의하여, 상기 각회로의 공기가 배기된다. 그리고, 상기 배기완료 후에 물탱크(14)내가 소정수위로 되었을 때에 급수밸브(41)를 폐쇄시키면, 시운전동작이 완료한다.When the trial run switch (not shown) installed in the instrument body 1 is operated after the above operation, the bypass circuit C having the heat exchanger 13 for reheating while opening the water supply valve 41 of the water supply circuit 4 is opened. The reheating valve 16 installed in) is kept closed and the non-automatic lake pump 15 is driven. Then, the non-automatic lake pump 15

Heat dissipation mat 31 of the first heating circulation circuit 3

Water Tank (14)

Circuit circulating to the non-automatic lake pump 15 and the non-automatic lake pump 15

Main Heat Exchanger (12)

Fan convection radiator 21 of second heating circuit (2)

Water Tank (14)

The circuit circulated to the non-automatic lake pump 15 and the water circulated to the main circulation circuit 10 move air in the respective circuits into the water tank 14. Thereby, the air of each said circuit is exhausted. After the exhaust is completed, the water supply valve 41 is closed when the inside of the water tank 14 reaches a predetermined level, and the trial run operation is completed.

In addition, closing the reheating valve 16 of the bypass circuit C during the test operation operation includes the reheating valve 16 when the test operation is performed while the reheating valve 16 is opened. A part of the main circulation circuit 10 located between the bypass circuit C and its upstream and downstream ends constitutes a parallel circuit, so that the flow path resistance of the entire main circulation circuit 10 against water flow is reduced. This is because the amount of water branched to the first and second heating circuits 3 and 2 decreases, so that the exhaust of these first and second heating circuits 3 and 2 may become incomplete.

However, in the above conventional example, the air of the heating circulation circuit and the main circulation circuit 10 including the heat exchanger for heating such as the fan convection radiator 21 and the heat radiating mat 31 can be exhausted by the trial run operation. In some cases, the air in the non-automatic lake pump 15 cannot be exhausted. In this case, there is a problem that noise continues for a long time until the air in the non-automatic lake pump 15 is exhausted.

The case where the air in the non-automatic lake pump 15 cannot be exhausted is caused by the following reason.

In order to exhaust the air in the non-automatic lake pump 15, it is necessary to allow the non-automatic lake pump 15 to flow water having a specified flow rate or more.

By the way, the number of heat-dissipating mats 31, 31, 31, etc. embedded in the pipe paths of the first and second heating circulation circuits 3 and 2, and the first and second heating circulation circuits 3 and 2, and the like Since the flow rate in the main circulation circuit 10 is indeterminate according to the type or the like, even if the non-automatic lake pump 15 is operated while the bypass circuit C is shut off, the water having a specified flow rate or more required for exhausting the non-automatic lake pump ( 15) It may not flow inside. For this reason, the case where exhaustion in the non-automatic lake pump 15 is impossible occurs.

비자동호수펌프(15)와 순환수가열부(19)와 물탱크(14)를 순환하도록 형성된 메인순환회로(10)와, 상기 메인순환회로(10)에 있어서 상기 비자동호수펌프(15)의 토출부와 상기 물탱크(14)의 입구부 사이에서 분기하여 상기 물탱크(14)로 귀환하거나, 또는 상기 메인순환회로(10)에 있어서 상기 분기부에서 상기 물탱크(14)에 이르는 회로부로 귀환하는 난방용 순환회로 및 바이패스회로(C)와, 상기 물탱크(14)로 급수하는 급수회로(4)를 구비한 급탕장치

로, 난방용 순환회로등을 배기시키는 시운전동작을 시켰을 때 비자동호수펌프(15)내의 공기도 확실하게 배기시킬 수 있도록 하는 것을 과제로 한다.This application is made in view of such a point,

The main circulation circuit 10 formed to circulate the non-automatic lake pump 15, the circulating water heater 19, and the water tank 14, and the non-automatic lake pump 15 of the main circulation circuit 10. Branched between the discharge portion and the inlet of the water tank 14 to return to the water tank 14, or to the circuit portion from the branch to the water tank 14 in the main circulation circuit 10; A hot water supply device having a return circulation circuit and bypass circuit (C) and a water supply circuit (4) for supplying water to the water tank (14).

It is a problem to ensure that the air in the non-automatic lake pump 15 is also reliably exhausted when a trial operation operation for exhausting a heating circulation circuit or the like is performed.

1 is a circulation water circuit diagram of a hot water supply device according to an embodiment of the present invention.

2 is a cross-sectional view of the non-automatic lake pump 15 installed in the circulation water circuit of FIG.

3 is a control circuit diagram of the hot water supply device of FIG.

4 is a control flowchart of the control device of FIG.

Figure 5 is a schematic diagram of the circulation water circuit of the hot water supply apparatus of the present invention

* Explanation of symbols for main parts of the drawings

10-main circuit 14-water tank

15-Non-Automated Lake Pump 51-Bath

C-bypass circuit D-exhaust determination means

E-bypass circuit control means F-pump control means

G-water supply control means

시운전스위치의 조작신호에 의하여 상기 급수회로(4)를 개방상태로 유지하는 급수제어수단(G)과, 상기 시운전스위치의 상기 조작신호에 의하여 상기 비가동호수펌프(15)를 작동시키는 펌프제어수단(F)과, 상기 메인순환회로(10) 및 상기 난방용 순환회로내의 배기가 완료되었을 때 배기완료신호를 출력하는 배기판정수단(D)과, 상기 비자동호수펌프(15)의 작동후 상기 배기판정수단(D)에서 상기 배기완료신호가 출력될 때까지는 상기 바이패스회로(C)를 차단상태로 유지하는 한편, 상기 배기완료신호가 출력되 이후에 상기 바이패스회로(C)를 개방하는 바이패스회로 제어수단(E)을 구비한다

는 것을 특징으로 한다.In order to solve the above problems, the invention of claim 1,

Water supply control means (G) for holding the water supply circuit (4) in an open state by an operation signal of a commissioning switch, and a pump control means for operating the non-operating lake pump (15) in response to the operation signal of the commissioning switch. (F), exhaust determination means (D) for outputting an exhaust completion signal when exhaust in the main circulation circuit (10) and the heating circulation circuit is completed, and the exhaust after operation of the non-automatic lake pump (15). The bypass circuit C is held in a blocked state until the exhaust completion signal is output from the determining means D, while the bypass circuit C is opened after the exhaust completion signal is output. Pass circuit control means (E) is provided.

It is characterized by.

상기 바이패스회로(C)는, 욕조(51)내의 입욕수와 열교환을 함으로써 이를 재가열하는 기능을 구비한다

는 것으로 하여도 되고, 또 상기 바이패스회로(C)는 이와 같은 기능을 구비하지 않고 오로지 비자동호수펌프(15)의 배기만을 위하여 설치한 것이거나, 다른 목적으로 설치한 것이라도 무방하다.Moreover, like the invention of claim 2,

The bypass circuit (C) has a function of reheating it by heat exchange with the bath water in the bathtub (51).

In addition, the bypass circuit C may be provided only for exhausting the non-automatic lake pump 15 without such a function, or may be provided for other purposes.

In the hot water supply device, when the fan convection radiator 21 serving as a heating radiator is provided, the circulation water circuit in the fan convection radiator 21 is operated by operating a terminal operation switch provided in the fan convection radiator 21 main body. It is necessary to perform the preparatory work to open the same as the conventional case described above.

난방용 순환회로

물탱크(14)

비자동호수펌프(15)로 순환하는 회로로 흐름으로써, 상기 각회로의 배기가 이루어진다.When the test operation switch is operated after the preparation work is completed, the water supply circuit 4 is opened by the water supply control means G, and the water supply is started into the water tank 14, and the non-automatic lake is controlled by the pump control means F. The pump 15 is driven. Then, the feed water supplied to the water tank 14 through the water supply circuit 4, the main circulation circuit formed to circulate the water tank 14, the non-automatic lake pump 15 and the circulating water heater 19 ( 10) and the discharge side of the non-automatic lake pump 15 in the main circulation circuit 10

Heating circuit

Water Tank (14)

By flowing to the circuit circulating to the non-automatic lake pump 15, the exhaust of each circuit is achieved.

When the exhaust of each circuit is completed, the bypass circuit control means E operates by the exhaust completion signal output from the exhaust determination means D to open the bypass circuit C. FIG. Then, a part of the main circulation circuit 10 located between the bypass circuit C and its upstream and downstream ends constitutes a parallel circuit, so that the flow resistance of the entire main circulation circuit 10 decreases by that amount. . Then, the load which acts on the non-automatic lake pump 15 falls, and the flow volume increases, and the air which stayed in the said non-automatic lake pump 15 is exhausted.

EMBODIMENT OF THE INVENTION Hereinafter, embodiment of said invention is described in detail based on drawing.

1 is a circulating water circuit diagram showing an embodiment of the present invention.

The main circulation circuit 10 formed in the mechanism main body 1 is formed to circulate constituting the circulating water heater 19. In the main circulation circuit 10, a circuit between the main heat exchanger 12 and the water tank 14 includes a second heating circulation circuit 2 and a bypass circuit in parallel with a part of the main circulation circuit 10. (C) is formed, and in the main circulation circuit 10, the discharge side of the non-automatic lake pump 15 and the downstream end 232 of the throttle 23 are connected by the first heating circulation circuit 3, have. The downstream ends of the first and second heating circuits 3 and 2 may be directly connected to the water tank 14.

Hereinafter, the part of each said circuit is demonstrated in detail.

[About the main circulation circuit 10]

The throttle 23 constituting a part of the main circulation circuit 10 is a high-temperature water (circulating water heater 19) of a flow rate necessary for raising the temperature in the first heating circulation circuit 3 to a temperature suitable for floor heating. It has a function to be able to supply the hot water of 80 ℃ flowing out to the first heating circulation circuit (3).

The main heat exchanger 12 of the circulating water heater 19 provided in the main circulation circuit 10 is heated by the gas burner 11 supplied with gas through the gas valve 17, and the main heat exchanger ( The tapping temperature sensor 18 is provided in the discharge part of 12).

In the water tank 14, the lowest water level sensor 141 which detects the minimum water level necessary for the operation of a mechanism such as heating or reheating the bath water in the bathtub 51, and the highest water level sensor 142 which detects the highest water level are provided. In addition, the overflow pipe 143 is connected to the upper wall of the water tank 14. In addition, the water tank 14 is supplied with water through an upper water supply circuit 4, and a water supply valve 41 is provided in the water supply circuit 4.

In the main circulation circuit 10, the non-automatic lake pump 15 provided downstream of the water tank 14 has the structure of FIG. In the casing 150 of the non-automatic lake pump 15, a rotating shaft 151 and rotating blades 152 and 152 extending radially from the rotating shaft 151 are formed, and are formed at the center of the casing 150. The circulating water introduced from the inlet 153 flows out through the outlet 154 by centrifugal force when the rotary blades 152 and 152 are rotated. In the non-automatic lake pump 15 of this type, since the casing 150 for receiving the rotary blades 152 and 152 is formed in a cylindrical shape, when air enters the casing 150, the casing 150 enters the upper space inside the casing. Although the air bubbles 155 are easily formed, as described later, when the flow rate in the non-automatic lake pump 15 is larger than the set value, the air bubbles 155 may be removed by moving the air toward the discharge port 154. .

[About 1st heating circuit 3]

A branch connection pipe 33 is provided in the first heating circulation circuit 3 branched from the discharge side of the non-automatic lake pump 15 in the main circulation circuit 10, and the connection terminals 331, 331 and 331 formed at the front end thereof are provided. Heat dissipation mats 31, 31, and 31, which are heating radiators, are connected via floor heating valves 332, 332, and 332. The downstream circuits of the heat radiating mats 31, 31, and 31 are joined and integrated with the second heating circulation circuit 2 and connected to the downstream end 232 of the throttle 23 of the main circulation circuit 10.

[2nd heating circulation circuit 2]

In the main circulation circuit 10, the upper and lower flow passages of the throttle 23 are connected by a second heating circulation circuit 2, which is a heating circulation circuit, and a fan as a radiator for heating is connected to the second heating circulation circuit 2; The convection radiator 21 is provided.

[Bypass Circuit C]

욕조(51)

재가열용펌프(53)

재가열용 열교환기(13)로 순환하는 욕조측 순환회로(5)로 이루어져 있다. 그리고, 상기 재가열용 열교환기(13)는, 바이패스회로(C)의 재가열용 밸브(16)의 하류측 회로를 구성하는 내측관(130), 이를 포위하고 또한 욕조측 순환회로(5)의 일부를 구성하는 외측관(54)으로 이루어진 이중관형상으로 형성되어 있다.The reheat valve 16 and the reheat heat exchanger 13 are provided in the bypass circuit C connecting the downstream side of the main heat exchanger 12 and the bottom of the water tank 14 in the main circulation circuit 10. In addition, the circuit of the reheating heat exchanger 13 is the reheating heat exchanger 13

Bathtub (51)

Reheating Pump (53)

It consists of a bath side circulation circuit 5 which circulates to the reheat heat exchanger 13. The reheat heat exchanger (13) includes an inner tube (130) constituting a downstream circuit of the reheat valve (16) of the bypass circuit (C) and surrounds the tubular circuit (5). It is formed in the double tube shape which consists of the outer side pipe 54 which comprises a part.

In addition, in the present embodiment, the bypass circuit C has a reheating function of the bath water in the bathtub 51, but does not include the reheating function, that is, only for exhausting the non-automatic lake pump 15. It may be installed, and may be provided for another purpose (for example, the purpose of heating and warming hot water in a hot water storage tank). The downstream end of the bypass circuit C may be connected to the upstream side of the water tank 14 in the main circulation circuit 10.

The hot water supply pipe 78 drawn from the heat exchanger (not shown) is connected to the tub side circulation circuit 5, and when the hot water supply switch (not shown) is operated, the bathtub 51 is connected to the hot water supply pipe 78. A predetermined amount of hot water is supplied into the chamber.

[Control device]

3 is an explanatory diagram of a control device for each electric component such as the non-automatic lake pump 15.

At the input of the control device 6 in which the microcomputer or the like is installed, a signal of the reheat switch 72 formed in the remote control device 76 provided in the bathroom and the first to third floor heating switches 73, 74 and 75 is provided. Is entered. In addition, a signal of the tapping temperature sensor 18 which detects the output of the test run switch 71 provided in the mechanism main body 1 or the temperature of the outlet of the main heat exchanger 12 is input to the input portion of the control device 6. A signal indicating whether the terminal operation switch 211 of the fan convection radiator 21 is operated is input. In addition, the fan convection radiator valve 222 is controlled to be opened and closed by the terminal operation switch 211 installed in the operation unit of the fan convection radiator 21, and the heat dissipation fan 223 is operated when the terminal operation switch 211 is operated. It is supposed to be.

In addition, the output of the control device 6, the non-automatic lake pump 15, the reheating valve 16, the bottom heating valve (332,332,332), the lowest water level sensor 141, the highest water level sensor 142, gas The valve 17, the water supply valve 41, and the reheating pump 53 are connected.

[Control operation]

The microcomputer provided in the control apparatus 6 contains a control program as shown in the flowchart of FIG. 4, and the actual operation of the hot water supply apparatus according to the present embodiment will be described below with reference to FIG. 4.

First, when the fan convection radiator 21 is provided, the terminal switch 221 is operated to open the fan convection radiator valve 222.

When power is supplied to the control device 6, the microcomputer monitors the operation of the commissioning switch 71, the reheating switch 72 and the first to third floor heating switches 73, 74 and 75 in steps ST1 to ST3. In step ST4, it is determined whether the terminal operation switch 221 of the fan convection radiator 21 is operated.

Next, the operation in the case where the respective switches are operated will be described in detail again.

시운전스위치(71)가 조작되었을 경우

When commissioning switch 71 is operated

After the mechanism body 1 is installed, air is filled in the circuits of the main circulation circuit 10, the second heating circulation circuit 2, and the first heating circulation circuit 3, so that a trial run is performed to exhaust the air. The switch 71 is operated.

When the test run switch 71 is operated, the control operation branches from step ST1 to step ST10 to open the water supply valve 41 of the water supply circuit 4 for water supply to the water tank 14, and at the same time, the floor heating valve. (332,332,332) are opened. In addition, even if the bypass circuit C is formed, when there is no bathtub side circulation circuit 5, that is, the bypass circuit C is formed only to exhaust the air of the non-automatic lake pump 15. In the case of forming the case or for other purposes, the fan convection radiator 21 does not need to be provided, and the floor heating valve 332 is unnecessary in the hot water supply device of the type in which only a single heat dissipation mat 31 is provided. No control is needed to open it. Incidentally, in the present embodiment, the water supply valve 41 and the functional unit in the microcomputer executing the command to open it correspond to the water supply control means G described as the specificity of the invention described above.

출탕온도센서(18)

스로틀(23)

물탱크(14)

비자동호수펌프(15)로 순환하는 회로와, 또한 비자동호수펌프(15)

주열교환기(12)

출탕온도센서(18)

스로틀(23)의 상류단

제 2 난방용 순환회로(2)

스로틀(23)의 하류단

물탱크(14)

비자동호수펌프(15)로 순환하는 회로가 성립한 상태가 된다. 따라서, 이 상태에서 비자동호수펌프(15)를 작동시키면(스텝 ST13), 그 토출수가 상기 각회로를 통하여 순환한다. 즉, 메인순환회로(10)와 제 1, 제 2 난방용 순환회로(3,2)의 공기를 배기시킬 수 있는 것이다. 그리고, 상기 메인순환회로(10)와 제 1, 제 2 난방용 순환회로(3,2)에 체류하고 있던 공기는, 상기 배기동작시에 이들 회로를 흐르는 순환수와 함께 이동하여 물탱크(14)에서 그 오버플로관(143)을 통하여 외부로 배출된다. 그리고, 상기 메인순환회로(10)나 제 1, 제 2 난방용 순환회로(3,2)내의 배기가 완료되어 물탱크(14)내의 수위가 최고수위센서(142)의 하단인 최고수위까지 상승하면, 60초의 시간대기가 실행된 후에 비자동호수펌프(15)가 일시적으로 정지된다(스텝 ST14∼스텝 ST16). 또, 이 실시형태에서는, 최고수위센서(142)의 출력에 의하여 물탱크(14)내가 최고수위에 도달한 것을 판단하는 스텝 ST14를 실행하는 마이크로컴퓨터내의 기능부가 상기한 발명특정사항으로서 기재된 배기판정수단(D)에 대응한다.Next, the water level in the water tank 14 rises to the lower end of the water level sensor 141 until the lowest water level sensor 141 installed in the water tank 14 detects the lowest water level (step ST11). When the water level detection signal is output from the lowest water level sensor 141, the reheating valve 16 is maintained in a closed state. Then, the main heat exchanger 12

Tapping temperature sensor (18)

Throttle (23)

Water Tank (14)

Circuit circulating to the non-automatic lake pump 15, and also the non-automatic lake pump 15

Main Heat Exchanger (12)

Tapping temperature sensor (18)

Upstream end of the throttle 23

Second heating circuit (2)

Downstream of throttle (23)

Water Tank (14)

A circuit circulating to the non-automatic lake pump 15 is established. Therefore, when the non-automatic lake pump 15 is operated in this state (step ST13), the discharge water circulates through the respective circuits. That is, the air of the main circulation circuit 10 and the 1st, 2nd heating circulation circuits 3 and 2 can be exhausted. And the air which stayed in the said main circulation circuit 10 and the 1st, 2nd heating circulation circuits 3 and 2 moves with the circulating water which flows through these circuits at the time of the exhaust operation, and the water tank 14 Is discharged to the outside through the overflow pipe 143 in. When the exhaust in the main circulation circuit 10 or the first and second heating circulation circuits 3 and 2 is completed, and the water level in the water tank 14 rises to the highest water level, which is the lower end of the high water level sensor 142. After the 60-second time zone is executed, the non-automatic lake pump 15 is temporarily stopped (step ST14 to step ST16). Moreover, in this embodiment, the functional part in the microcomputer which performs step ST14 which judges that the inside of the water tank 14 reached | attained the highest water level by the output of the highest water level sensor 142 was exhaust determination described as above-mentioned invention specific matter. It corresponds to the means (D).

Even when the main circulation circuit 10 or the first and second heating circuits 3 and 2 are exhausted, the air in the non-automatic lake pump 15 may not be exhausted as described above. As shown by the air bubbles 155 in FIG. 2, air may stay in the pump 15.

Thus, the exhaust operation in the non-automatic lake pump 15 is executed in the process of step ST17 or less.

That is, after executing the time period of 20 seconds in step ST17, the non-automatic lake pump 15 is operated again in step ST18, and the reheating valve 16 is opened in step ST19. It carries out (step ST20). Moreover, in this embodiment, the reheating valve 16 and the functional part in the microcomputer which executes the command of step ST19 to open it correspond to the bypass circuit control means E which is the above-mentioned invention specific matter.

주열교환기(12)

재가열용 밸브(16)

재가열용 열교환기(13)

물탱크(14)

비자동호수펌프(15)로 순환하는 회로가 성립하고, 이에 의하여 상기 회로와 이 상류단 및 하류단 사이에 위치하는 메인순환회로(10)의 일부가 병렬회로를 구성하므로, 재가열용 밸브(16)가 폐쇄되어 있는 경우에 비하여 회로전체의 유로저항이 저하된다. 따라서, 비자동호수펌프(15)내의 배기에 필요한 유량{본 실시형태의 비자동호수펌프(15)에서는 약 5l/분으로 설정되어 있지만, 이 값이 아니더라도 무방하다}의 물이 상기 비자동호수펌프(15)내로 흐르게 된다. 따라서, 비자동호수펌프(15)에 체류고 있던 공기는 그 토출구(154)에서 그 하류측의 메인순환회로(10)를 경유하여 물탱크(14)로 보내지고, 그 오버플로관(143)을 통하여 대기로 방출된다. 이에 의하여, 비자동호수펌프(15)내의 배기가 이루어진다.Then, by opening the reheat valve 16, the non-automatic lake pump (15)

Main Heat Exchanger (12)

Reheat Valve (16)

Reheating Heat Exchanger (13)

Water Tank (14)

A circuit circulating to the non-automatic lake pump 15 is established, whereby a part of the main circulation circuit 10 located between the circuit and its upstream and downstream ends constitutes a parallel circuit, so that the valve for reheating 16 ), The flow path resistance of the entire circuit is lower than that in the case of closing (). Therefore, the flow rate required for the exhaust in the non-automatic lake pump 15 (in the non-automatic lake pump 15 of the present embodiment is set to about 5 l / min, but may not be this value) is water. It flows into the pump 15. Therefore, the air remaining in the non-automatic lake pump 15 is sent from the discharge port 154 to the water tank 14 via the main circulation circuit 10 on the downstream side thereof, and the overflow pipe 143 Through the atmosphere. Thereby, the exhaust in the non-automatic lake pump 15 is made.

Next, the non-automatic lake pump 15 is stopped for 20 seconds and then operated again for 60 seconds. By repeating the operation and the stop of the non-automatic lake pump 15, small bubbles mixed into the water in the main circulation circuit 10 or the first and second heating circulation circuits 3 and 2 are discharged to the water tank ( This is because it is possible to go to 14) and complete exhaust.

Next, after closing the reheating valve 16 in step ST25, the non-automatic lake pump 15 is stopped in step ST26 to complete the exhaust of the non-automatic lake pump 15.

Moreover, in the said embodiment, after the exhaust in the main circulation circuit 10 and the 1st, 2nd heating circulation circuits 3 and 2 is completed, the non-automatic lake pump 15 is temporarily stopped (step ST16, step ST17). The control of step ST19 for opening the reheating valve 16 without stopping the non-automatic lake pump 15 may be performed. In this embodiment, the microcomputer executes the instructions of steps ST13 and ST18 for operating the non-automatic lake pump 15 and the instructions of step ST23 for operating the non-automatic lake pump 15 again for complete evacuation. The functional unit in the computer corresponds to the pump control means F described as the invention specific matter described above.

재가열스위치(72)가 조작되었을 경우

When the reheat switch 72 is operated

When the reheat switch 72 is operated, the control operation is shifted to the reheating step not shown in step ST2. In this reheating process, the gas valve 17 is opened, and an ignition device (not shown) is operated to maintain the gas burner 11 in a combustion state, and the non-automatic lake pump 15 is operated. 16) is opened. In addition, the reheating pump 53 is maintained in an operating state.

메인순환회로(10)재가열용 밸브(16)

재가열용 열교환기(13)의 내측관(130)

물탱크(14)

비자동호수펌프(15)

주열교환기(12)로 연결되는 회로를 순환한다. 또, 욕조(51)내의 입욕수는 재가열용 펌프(53)

재가열용 열교환기(13)

욕조(51)로 순환함으로써, 상기 욕조(51)내의 입욕수와 주열교환기(12)에서 가열생성된 온수가 상기 재가열용 열교환기(13)에서 열교환함으로써, 욕조(51)내의 재가열이 이루어진다.Then, the hot water generated by the main heat exchanger 12, the main heat exchanger 12

Main circulation circuit (10) Reheat Valve (16)

Inner tube 130 of reheating heat exchanger (13)

Water Tank (14)

Non-Automatic Lake Pump (15)

The circuit connected to the main heat exchanger 12 is circulated. In addition, the bath water in the bath 51 is a reheating pump 53.

Reheating Heat Exchanger (13)

By circulating in the bath 51, the bath water in the bath 51 and the hot water generated by the main heat exchanger 12 are heat-exchanged in the reheat heat exchanger 13, whereby reheating in the bath 51 is performed.

제 1∼3 바닥난방스위치(73,74,75)가 조작되었을 경우

When the first to third floor heating switches 73, 74 and 75 are operated

When the first to third floor heating switches 73, 74 and 75 are operated, the control operation is shifted to the floor heating process not shown in step ST3. In this floor heating process, the floor heating valves 332, 332, 332 corresponding to the operated first to third floor heating switches 73, 74, and 75 are opened, and the gas burner 11 is burned and at the same time, a non-automatic lake pump. Keep (15) in operation.

In this floor heating operation, the control operation varies depending on the condition such as whether the bath water in the bathtub 51 is reheated or whether the fan convection radiator 21 is in use.

That is, when the bath water is not heated in the bathtub 51 and the fan convection radiator 210 is not used, that is, in the state where the bypass valve 16 and the valve for the fan convection radiator 222 are closed, The combustion amount of the gas burner 11 is controlled so that the tapping temperature detected by the tapping temperature sensor 18 installed in the discharge section of the exchanger 12 is 60 ° C, and the hot water at the temperature is passed through the main circulation circuit 10. In addition to circulating, part of the circulating water is branched from the discharge portion of the non-automatic lake pump 15 to the heating circulation circuit 3 to supply hot water to the heat radiating mats 31, 31, and 31 to perform floor heating. . On the other hand, when the bath water heating in the bath 51 is being performed or when the fan convection radiator 21 is used, the temperature of the hot water generated by the main heat exchanger 12 is the reheating heat exchanger 13 or the fan. The temperature is lowered in the convection radiator 21, and the hot water whose temperature is lowered is sucked by the non-automatic lake pump 15 through the water tank 14, and is supplied from the discharge portion to the first heating circulation circuit 3 side. do. In this case, therefore, the combustion amount of the gas burner 11 is controlled so that the tapping temperature detected by the tapping temperature sensor 18 is about 80 ° C. Then, the temperature of the hot water after the temperature is lowered by the bath water heating of the bath 51 or the use of the fan convection radiator 21 becomes about 50 ° C. to 60 ° C. suitable for floor heating, and the hot water is circulated for the first heating. It is supplied to the circuit 3 to perform floor heating.

팬대류방열기(21)가 사용되었을 경우

When fan convection radiator 21 is used

When the terminal operation switch 211 of the fan convection radiator 21 is operated, the control operation is shifted to the heating process not shown in step ST4.

When the terminal operation switch 211 is operated, the heat dissipation fan 223 in the fan convection radiator 21 is operated and the valve for the fan convection radiator 222 is kept open. Then, the microcomputer in the control device 6 which monitors the ON-OFF state of the fan convection radiator 21 detects that the fan convection radiator 21 is ON and operates the non-automatic lake pump 15. At the same time, the combustion amount of the gas burner 11 is controlled so that the temperature detected by the tapping temperature sensor 18 is about 80 ° C.

Then, the hot water generated by heating in the main heat exchanger 12 is the second heating circulation circuit 2 on the side of the fan convection radiator 21 at the upstream end 231 of the throttle 23 in the main circulation circuit 10. Branched to the water tank 14 by way of the fan convection radiator 21.

In the case where a plurality of fan convection radiators 21 are connected, or when a plurality of floor heating radiating mats 31 are connected, the presence or absence of these connections is determined for each fan convection radiator 21 or the heat radiating mat 31. In the two-way communication type hot water supply device that can be determined, an approximate flow rate of the circulating water flowing through the heat radiating mat 31 or the fan convection radiator 21 can be determined based on the number of these connections. Therefore, in this type of hot water supply device, the reheating valve 16 is opened only when the total flow rate of the circulating water is less than the flow rate required for the exhaust of the non-automatic absorption pump 15, so that the air of the non-automatic lake pump 15 is opened. Exhaust.

The invention has the following effects.

When the commissioning operation is performed, the large amount of water flows into the non-automatic lake pump 15 by evacuating air such as the heating circulation circuit and then opening the bypass circuit C. The air in (15) can also be exhausted reliably. Thereby, the problem that the operation noise of the non-automatic lake pump 15 which generate | occur | produces because air in the non-automatic lake pump 15 cannot be exhausted continues over a long period of time can be solved.

Claims (2)

The non-automatic water pump 15, the circulation water heater 19, and the main circulation circuit 10 formed to circulate the water tank 14, and the non-automatic in the main circulation circuit 10 Branched between the discharge part of the lake pump 15 and the inlet part of the water tank 14 and returns to the water tank 14, or in the main circulation circuit 10 at the branch in the water tank ( In the hot water supply device having a heating circulation circuit and a bypass circuit (C) for returning to the circuit section up to 14) and a water supply circuit 4 for supplying water to the water tank 14, the operation signal of the trial run switch 14 Water supply control means (G) for maintaining the water supply circuit (4) in an open state by the pump, pump control means (F) for operating the non-automatic lake pump (15) in response to the operation signal of the trial run switch, Completion of exhaust when the exhaust in the main circulation circuit 10 and the heating circulation circuit is completed The bypass circuit C is cut off after the exhaust determination means D for outputting a call and the exhaust completion signal are output from the exhaust determination means D after the non-automatic lake pump 15 is operated. And bypass circuit control means (E) for opening the bypass circuit (C) after the exhaust completion signal is output. The hot water supply apparatus according to claim 1, wherein the bypass circuit (C) has a function of reheating the heat exchanger with the bath water in the bathtub (51).

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