CN1210235A

CN1210235A - Hot water supplying/heating system of boilers

Info

Publication number: CN1210235A
Application number: CN97120385A
Authority: CN
Inventors: 李黄义; 李应宰; 李廷春
Original assignee: Rinnai Korea Corp
Current assignee: Ranee Industrial Co., Ltd.
Priority date: 1997-08-30
Filing date: 1997-12-11
Publication date: 1999-03-10
Anticipated expiration: 2017-12-11
Also published as: KR100472065B1; CN1125288C; KR19990021378A

Abstract

A hot water supplying/heating system of boilers comprises a boiler housing, a burner, a heat exchanger having a plurality of heat exchanging devices disposed overlay, a heating water circulation pipe, a hot water supply pipe, a converter for switching direction of the hot water flow relative to the heating water circulation pipe and a bypassing pipe disposed between the a direct water supply pipe and the hot water supply pipe. A bypassing control valve is provided on the bypassing pipe to control stream flowing the bypassin pipe. The system only uses hot water supplying manner without using a heating manner, wherein the hot water supplied to a user is maintained suitable temperature to prevent the user being scalded by water in high temperature. Accordingly, heating time of hot water and energy can be reduced due to directly using the heat energy of the burner.

Description

Hot water supply/the heater of boiler

The present invention relates to the hot water supply/heater of boiler, be particularly related to a kind of like this hot water supply and/or heater of boiler, be supplied to user's hot water and/or in boiler, circulate, be used as the hot water that adds hot water and can separate control simultaneously, use the heat energy of a burner just can obtain the suitable hot water of temperature in short-term and prevent that the user from being scalded by the too high hot water of temperature.

In general, existing boiler acts as a fuel with combustion gas or fuel oil, wherein, heat a main heat exchanger with the calory burning of this boiler and heat the water that in boiler, circulates and carry out first heat exchange and heat a secondary heat exchanger and heat and carry out second heat exchange from the water of outside supply and to user's hot-water supply.

Therefore, existing heat exchanger must comprise two heat-exchanger, thereby some water through heating with main heat exchanger heat with valve conversion pipeline, with some water hot-water supplies through heating of secondary heat exchanger.

Therefore, a shortcoming of existing boiler is that the double-heat exchanger device that is made of main heat exchanger and secondary heat exchanger makes pipeline complicated.

In addition, in the main heat exchanger some delivered to secondary heat exchanger and the direct water heat-shift of supplying to the feed pipe of user's hot-water supply through the water of heating, after heat exchange, with a pump through the water of heating through adding the hot-water circulation pipe and recurrent canal returns main heat exchanger.

Therefore, another shortcoming of existing boiler is that the heat time heating time of water is long, and fuel consumption is big, because the recirculated water indirect that is supplied to user's hot water to be heated by the calory burning with burner.

Another shortcoming of existing boiler is, because the volume of the parts in the boiler is bigger, therefore can't make compact elongated shape, thereby is not easy to transportation.

In addition, another shortcoming of existing boiler is, owing to carry out hot water and add the supply of hot water with same order, so it is long to obtain the required time of the hot water of required high temperature.

For example,, do not heat, must lock and be contained in a collector pipe that adds on the hot-water circulation pipe in order only to use hot water in summer.Because heating hydrothermal exchange chamber is directly connected to and adds the hot-water circulation pipe and the hot water thermal switch room is connected between feed pipe and the hot water feeding pipe, therefore generate simultaneously to add hot water and hot water, thereby in the time only need carrying out the hot water method of supplying, heating system carries out in the same old way.Therefore, owing to unnecessary heating operation, promptly add that hot water circulate and cooling in vain in adding the hot-water circulation pipe, so it is longer that water is heated to the uniform temperature required time.

Another shortcoming of existing boiler is, only also can't determine or realize the hot water current during hot-water supply even stop heating, so can't control the hot water current fully for example manually selecting the hot water methods of supplying with user's manual controller or control panel assembly 4.

Another shortcoming of existing boiler is that owing to emitted suddenly by the hot water that remains in the secondary heat exchanger after the main heat exchanger heating, therefore the high-temperature-hot-water of originally supplying under heating system can be scalded the user.

Therefore an object of the present invention is to provide a kind of boiler, it directly uses the calory burning of burner and cuts down the consumption of energy, and shortens the heat hot water required time.

Another object of the present invention provides a kind of boiler, because the designs simplification of heat-exchange device in this boiler, so this boiler is compact elongated shape, thereby manufacturing cost descends.

Another object of the present invention provides the boiler that hot water that originally a kind of user of preventing emitted is scalded.

According to the present invention, a boiler comprises the boiler jacket that each parts wherein is housed; The burner that one be contained in the boiler jacket, combustion fuel generates heat energy; One be contained on this burner, comprise and manyly stacked add the hot water heat exchanger with a hot water heat exchanger and by adding the heat exchanger of hot water and hot water with the heat exchange of this burner: one be connected with the heating hydrothermal exchange chamber of this heat exchanger add the hot-water circulation pipe; One hot water feeding pipe who is connected with the water receiving pipe always of hot water thermal switch room import department, this hot water thermal switch room are between heating hydrothermal exchange chamber and generate hot water by directly carrying out heat exchange with burner; One be connected the import department of one of heating hydrothermal exchange chamber, conversion adds the hot water current with respect to the conversion equipment of the direction that adds the hot-water circulation pipe under the control of a controller; And directly between water feed pipe and the hot water feeding pipe, have a bypass control valve to control a shunt valve of stream therebetween on it.

According to the present invention, this boiler can be used for heating system and hot-water supply mode, directly uses the heat energy of burner and reduce to add hot water required time and energy.

According to the present invention, this boiler can only be used for hot-water supply and not heat, use from a shunt valve add without the direct water of heating and hot-water supply just after hot water mixes, thereby prevent that the user from being scalded by high-temperature water.

From can more fully understanding the present invention the following detailed description to exemplary embodiments in conjunction with the accompanying drawings, in the accompanying drawing:

Fig. 1 is the piping diagram of boiler of the present invention;

Fig. 2 is the piping diagram of Fig. 1 boiler, illustrates to add the hot water current under the heating system;

Fig. 3 is the piping diagram of Fig. 1 boiler, illustrates to add the hot water current under the hot-water supply mode;

Fig. 4 is the profile of heat exchanger of the present invention.

Fig. 1 illustrates the pipeline that adds hot-water circulation pipe 6 and hot water feeding pipe 15 in the boiler, and Fig. 2 and 3 illustrates respectively under heating system and the hot-water supply mode and to add the hot water current in Fig. 1 pipeline, and Fig. 4 illustrates a heat exchanger that is contained in the boiler of the present invention.

In Fig. 4, one heat exchanger 27 comprises plate 275 and many dividing plates 276 in a top board 273, the base plate 274,, they be used for defining and the chamber up and down 271 of water (hereinafter referred to as " adding the hot water ") heat-shift that is used for heating and one heat up and down between the hydrothermal exchange chamber 271, with the chamber 272 that is supplied to user's water (hereinafter referred to as " hot water ") heat-shift.In addition, the blast pipe 27d calory burning that vertically passes these

chambers

271 and 272, one burners 5 adds hot water and hot water

thermal switch room

271 and 272.

One boiler jacket 1 surrounds all parts that are mounted in it, and wherein has a combustion chamber 21 of a burner 5 to be contained in the below of boiler jacket 1.Because burner is surrounded and is having one to add in the combustion chamber 21 of hot water outlet 21a, so the calory burning of burner 5 can not spill.

Boiler jacket 1 can be square or cylindrical, and its top has a steam vent 28 that calory burning is discharged to the outside.Steam vent 28 constitutes the path of the burning gases of emission combustor 5.

Be installed in as shown in Figure 1 in the burner 5 of heat exchanger 27 belows of boiler, produce heat energy with certain proportion with air mixing after-combustion from a fuel tank supplied fuel, wherein, fuel is the fuel oil or the combustion gas of oil and kerosene and so on.

In heat exchanger 27, in plate 275 and many dividing plates 276 between top board 273 and base plate 274, forms many heat exchange units and as heating hydrothermal exchange chamber 271 and hot water thermal switch room 272, water is heated by the calory burning that discharges in blast pipe 27d when flowing through these heat exchange units.

More detailed theory, water are introduced respectively respectively in the heat-exchanging

chamber

271 and 272 that is defined by middle plate 275 and dividing plate 276 after carry out heat exchange and be used separately as after being heated adding hot water and hot water with the discharged flue gas in blast pipe 27d of burner 5.

Therefore, in heating hydrothermal exchange chamber 271 up and down heated flow heated water cross under the building floor add hot-water circulation pipe 6 after flow back in the water tank 3.Being contained in the pump 10 that adds on the hot-water circulation pipe 6 with one then is extracted into the water in the water tank in the lower heating hydrothermal exchange chamber 271.

On the other hand, after 13 outside water of water receiving feed pipe are introduced hot water thermal switch room 272 always, heat these water and generate the hot water of using hot water feeding pipe's 15 supplies.Hot water thermal switch room 272 not only directly uses the calory burning that passes through blast pipe 27d of burner 5, also uses the heat of the heating hydrothermal exchange chamber 271 of its upper and lower to heat direct water indirectly.Therefore, obtain the hot water required time and shorten, thereby can obtain relatively large hot water.

Blast pipe 27d vertical passing from heat-exchanging

chamber

271 and 272 that the flue gas of a large amount of emission combustors 5 is arranged.Therefore, high-temperature combustion gas flow through these blast pipes 27d and directly heat with heat-exchanging

chamber

271 and 272 heat-shifts wherein hot water with add hot water.

For improving heat exchanger effectiveness, the quantity of blast pipe 27d also can change on demand.

, therefore be preferably in and among the blast pipe 27d flow plug 277 be installed and reduced fume emission speed because that thereby blast pipe 27d vertically passes the mass rate of emission of flue gas of

chamber

271 and 272 burners 5 is very high.Therefore, heat exchanger effectiveness is owing to the mass rate of emission of flue gas descends, the heat exchanger time lengthening is improved.

Be preferably in burner 5 combustion chamber 21 around water heating tube 211 is set so that add hot water preheating in pipe 211 before returning heat-exchanging chamber 271 after the circulation.In a word, after the circulation add hot water in water heating tube 211, carry out just delivering to after the preheating can reduce in the heat-exchanging chamber 271 that heating returns again add required time of hot water and fuel.

One spark plug 24 is connected with an electric igniter 23 of burner 5 and burner 5 is lighted a fire, and the outside of combustion chamber 21 is equipped with an air blast 26 and to burner 5 supply air and is prevented that burner 5 is because of overheated and on fire bimetal leaf 22.The sensor 25 of the igniting of one detection burner 5 is housed in the combustion chamber 21 in addition.

Burner 5 comprise a fuel filter 51, a supply fuel oil of impurity in the elimination fuel oil oil pump 52 and pre-heating oil, be convenient to the device 53 of fuel gasification.

Water tank 3 guides this to add the bypass guiding tube 7 of hot water when comprising the overflow pipe 32 of a switch 31 that detects the water surface, a discharge overflow water and the heating dilutional hyponatremia in returning water tank 3.

Add add the import 21a that hot water outlet 27a be stretched over combustion chamber 21 of hot-water circulation pipe 6, be equipped with one on it and filter and to be blended in circulation and to add the impurity in the hot water and an air that is blended in the water is discharged into outside steam trap 11 from upper heat exchange chamber 271.

One auxiliary water-feeding tube 12 is connected between water tank 3 and the steam trap 11, is discharged through this pipe by the air that steam trap 11 separates, and newly adds hot water and replenishes through this pipe.Directly water feed pipe 13 has an arm 14 to be stretched over the import of steam trap 11, and a personal control 141 is manually controlled this arm 14 for the user opening/closing is housed on it.

The temperature that a thermistor 73 detection outputs add hot water is equipped with at the hot water outlet 27a place that adds of upper heat exchange chamber 271, detect external temperature and an antifreeze thermistor 8 is housed in boiler jacket 1, thereby the controller 9 in the boiler jacket 1 determines whether to carry out antifreeze operation.

Wherein have the converter 16 of a check ball to be contained in the place ahead of outlet 27a of heat exchanger 27 and conversion adds hot water under the control of controller 9 supplier to.

In when heating, if check ball is positioned at converter 16 middle and lower parts as shown in Figure 2, then heating pad pipe 16a opens and hot water supply pipe 16b closes, and circulates in adding hot-water circulation pipe 6 and heats thereby add hot water.

On the contrary, when hot-water supply, check ball is positioned at converter 16 middle and upper parts as shown in Figure 3 under the control of controller 9, and hot-water line 16b opens and heating pipe 16a closes, and does not introduce and adds hot-water circulation pipe 6 and introduce and add hot water shunt valve 16c thereby add hot water.Flow through add hot water shunt valve 16c after, add circulation in adding hot-water circulation pipe 6 of hot water, but Returning heat-exchanger 27 further circulates.

On the other hand, be equipped with on the hot water feeding pipe 15 whether a switch 17 electro-detection use hot water and to controller 9 outputs one signal of telecommunication.

Directly water feed pipe 13 is connected to the water inlet 27b of the hot water thermal switch room 272 of this heat exchanger, and a de-icer 131 and an over-pressure safety device 132 are housed on it.Hot water feeding pipe 15 is connected to the hot water outlet 27c of hot water thermal switch room 272, can use hot water thereby the user handles a hot water valve 151 that is contained in hot water feeding pipe 15 ends.

One bimetal leaf, 19 detection external temperatures are housed on the surface of boiler jacket 1 whether are lower than predetermined value and export a signal, thereby temperature is remained on the predetermined value to controller 9.In Fig. 1-3, T represents a transformer.

Shunt valve 18 is connected between hot water feeding pipe 15 and the direct water feed pipe 13, one bypass control valve 18a is arranged on it, thereby bypass control valve 18a " opens " the driving signal of being exported according to controller 9 responding to switch 17 and opens, and behind certain hour, close automatically again,, reduces in the direct water directly in the water feed pipe 13 temperature of the hot water that is supplied to the user thereby adding among the hot water feeding pipe 15.Therefore, when the user handles hot water valve 151 use hot water, can prevent that the user from being scalded by high-temperature water.

Valve or synchronous motor valve that bypass control valve 18a can be magnet valves, handled by transmission system.

User's manual controller or control panel assembly 4 comprise that a manipulation-ON/OFF portion, adds hot water/hot water selection portion, a mechanical timer, an operation state display part and a temperature display part.

The working condition of the present invention of said structure is described in detail in detail below.

At first, the user opens a master cock with the manipulation on remote controller or the control panel assembly 4-ON/OFF portion, and controller 9 is delivered to burner 5 after just being preheating to the suitable temperature that is enough to vaporize to fuel preheating device 53 output one signals and fuel.

Then, controller 9 is to igniter 23, air blast 26 and burner 5 output control signals, thereby thereby the burner 5 combustion fuel calory burnings in the combustion chamber 21 that is surrounded by water heating tube 211 pass heat exchanger 27 through blast pipe 27d.

At this moment, add the mutual heat-shift of hot water and hot water and with heat exchanger 27 in the calory burning heat-shift after discharge from the outlet 27a that replaces stacked heating hydrothermal exchange chamber and hot water

thermal switch room

271 and 272 and 27c respectively.

Therefore, the heated hot water that adds is discharged from adding hot water outlet 27a by pump 10 according to the output signal of controller 9 in the heat-exchanging chamber 271 of heat exchanger 27.Add that hot water circulates in adding hot-water circulation pipe 6 and through the combustion chamber 21 import 21a Returning heat-exchanger 27.Above-mentioned circulation is carried out repeatedly and is heated to an interior of building.

On the other hand, when the user opened valve 151 use hot water, heated hot water was supplied to the user through outlet 27c and hot water feeding pipe 15 in the hot water thermal switch room 272 of heat exchanger 27.

Owing to have many blast pipe 27d to pass heat-exchanging

chamber

271 and 272 in the heat exchanger 27 of burner 5 tops, therefore, the calory burning of burner 5 is flowing through blast pipe 27d water the reheat heat exchanger 27 when exhaust outlet 28 is discharged.

Particularly, because hot water is directly heated by the calory burning of burner 5, the efficiency of heating surface that therefore can be very high obtains the suitable hot water of temperature in short-term.Also can reduce the quantity or the size of heat exchanger 27, thereby make whole boiler seem compact.

Simultaneously, the bimetal leaf 22 that is contained in 21 outsides, combustion chamber prevents to be caused by boiler 5 overheated on fire.

At the rear portion of burner 5, sensor 25 detects the igniting of burners 5, thus when igniter 23 is lighted a fire according to the burning signal output of controller 9 but is detected igniting less than burner 5, demonstrate a fault message and show light a fire malfunctioning.

The fuel filter 51 at burner 5 rear portions filters the impurity in the fuel oil that fuel tanks are supplied to burner 5 and prevents that the nozzle of burner 5 from being blocked by impurity.

Being contained in the import 21a that adds hot-water circulation pipe 6 upper combustion chamber 21 and the steam trap between the auxiliary water-feeding tube 12 11 is discharged into the outside and prevents the decline of the water hammer and the efficiency of heating surface and remove impurity being blended in the air that adds in the hot water.

Auxiliary water-feeding tube 12 is discharged by steam trap 11 isolated air and supplementing water from add hot water.

Be contained in manual changeable water supply controller 141 between direct water feed pipe 13 and the steam trap 11 and control the opening/closing of arm 14 by the user.Therefore, when boiler just is contained in a certain local time, the user can open the arm 14 of direct water feed pipe 13 and fill water in adding hot-water circulation pipe 6 in short-term with manual changeable water supply controller 141.

The thermistor 73 that is contained in the outlet 27a place of upper heat exchange chamber 271 detects the output temperature that adds hot water, and the antifreeze thermistor 8 that is contained in the boiler jacket 1 detects external temperatures, thereby carries out antifreeze operation to the Current Temperatures that adds hot water when the controller 9 in the boiler jacket 1 can be controlled in the scope that is set by the user automatically and externally temperature is lower than apparent freezing point.

The converter 16 that be contained in the place ahead of the outlet 27a of heat exchanger 27, wherein a check ball is arranged conversion adds hot water under the control of controller 9 under the hot-water supply mode supplier to.

Controller 9 determined that the user is using hot water when the switch 17 on being contained in hot water feeding pipe 15 was opened.Then, under heating system, open converter 16 conversion directions that add hot-water circulation pipe 6 usually and open hot water supply pipe 16b, thereby stop heating system to steam trap 11.

Promptly, controller 9 determines whether using hot water to converter 16 output control signals according to the output signal of switch 17, thereby converter 16 is guided current into and is added hot-water circulation pipe 6 or add hot water shunt valve 16c, heats when hot-water supply thereby heating system converted to the hot-water supply mode and prevent.

Say that definitely controller 9 determines that according to the output signal of switch 17 boiler is in heating system when switch 17 cuts out, converter 16 usefulness check balls close hot water supply pipe 16b and open heating system pipe 16a and in adding hot-water circulation pipe 6 constantly circulation add hot water.As shown in Figure 2, by by heating system pipe 16a, add the hot water that adds that flows in the closed path that the heating hydrothermal exchange chamber 271 of hot-water circulation pipe 6, steam trap 11, pump 10, water heating tube 211 and heat exchanger 27 constitutes and heat.

On the contrary, open the hot water valve 151 that is contained on the hot water feeding pipe 15 and switch 17 when opening the user, controller 9 determines that according to the output signal of switch 17 boiler is in the hot-water supply mode, and converter 16 usefulness check balls are opened hot water supply pipe 16b and closed heating system pipe 16a simultaneously and prevent that the water inflow through heating from adding hot-water circulation pipe 6.As shown in Figure 3, realize the hot water method of supplying by the water that flows in the closed path that constitutes in heating hydrothermal exchange chamber 271 through heating by hot water supply pipe 16b, shunt valve 16c, auxiliary water-feeding tube 12, steam trap 11, pump 10, water heating tube 211 and heat exchanger 27.

Therefore, when hot-water supply, do not heat, therefore add hot water and can't in adding the hot-water circulation pipe, do meaningless flowing and in flowing, cool off, but directly be directed in the heating hydrothermal exchange chamber 271 of heat exchanger 27 through the water heating tube 211 of combustion chamber 21.

In a word, but the hot water in the hot water thermal switch room 272 of heating up and down between the hydrothermal exchange chamber 271 just is heated to higher temperature within a short period of time because of the dual-heated of the heat that is subjected to up and down heat-exchanging chamber 271 and burner 5.

In addition, in summer, when not heating, use hot water to need not to lock and be contained in the header that adds on the hot-water circulation pipe.

Because the bypass control valve 18a of the shunt valve 18 between the hot water feeding pipe 15 who is connected heat exchanger 27 and the direct water feed pipe 13 " opens " the driving signal of being exported according to controller 9 responding to switch 17 and opens, and behind certain hour, close automatically again,, reduces in the direct water directly in the water feed pipe 13 temperature of the hot water that originally is supplied to the user thereby adding among the hot water feeding pipe 15.

According to the output signal of remote controller or control panel assembly 4, what determine that users set as controller 9 is the hot-water supply mode, and converter 16 adds hot-water circulation pipe 6 and converts the hot-water supply mode to regard to closing.At this moment, as not using hot water, burner 5 does not just burn, thereby prevents that the hot water that remains in the heat exchanger 27 is overheated.Therefore, open hot water valve 151 and can prevent that the user from being scalded by high-temperature water when using hot water the user.

In a single day the user opens hot water valve 151, even the user opens switch 17 once more so that reuse hot water, bypass control valve 18a between hot water feeding pipe 15 and the direct water feed pipe 13 also no longer opens, because as further in the direct water adding hot water, the temperature of employed hot water will be not high enough.Therefore, in a single day bypass control valve 18a opens, and valve 18a closes all the time under the hot-water supply mode.

At this moment, the time that bypass control valve 18a stays open is decided by the capacity of the hot water thermal switch room 272 of heat exchanger 27, and this time is also answered long enough, and the direct water of new supply flows through heat-exchanging chamber 272 so that already heated water is discharged from.

In said structure; with on the direct water feed pipe 13 that the water inlet 27b of hot water thermal switch room 272 in the heat exchanger 27 is connected de-icer 131 and over-pressure safety device 132 are housed, thereby can prevent in the winter time by crossing the damage that low external temperature or too high hydraulic pressure cause.

In addition, in water tank 3, the water of glut is discharged water tank and the hot water that too much adds after circulating is returned water tank 3 with the switch 31 detection waters surface, overflow pipe 32 discharge overflow waters, bypass guiding tube 7.

As mentioned above, according to heat-exchange device of the present invention, thereby hot water adds the hot water required time and energy reduces owing to the calory burning with burner directly adds, the size of whole boiler reduces owing to the volume of its parts and can be compact elongated shape, can prevent that when originally using hot water the user from being scalded by hot water suddenly.

Those of ordinary skills are not difficult to find out, can be not in the spirit and scope of the invention that limits by appended claim in strict accordance with shown in, described embodiment and the present invention is made all corrections and change.

Claims

1, a kind of hot water supply/heater of boiler is characterized in that, comprising:

The boiler jacket of each parts wherein is housed;

The burner that one be contained in the described boiler jacket, combustion fuel generates heat energy;

One be contained on the described burner, comprise and manyly stacked add hot water heat exchanger and a hot water heat exchanger and by adding the heat exchanger of hot water and hot water with the heat exchange of this burner;

One be connected with the described heating hydrothermal exchange chamber of described heat exchanger add the hot-water circulation pipe;

One hot water feeding pipe who is connected with the water receiving pipe always of described hot water thermal switch room import department, this hot water thermal switch room are between heating hydrothermal exchange chamber and directly carry out heat exchange by the heat energy with described burner and generate hot water;

One be connected the exit of one of described heating hydrothermal exchange chamber, conversion adds the hot water current with respect to the converter of the direction that adds the hot-water circulation pipe under the control of a controller portion; And

Between described direct water feed pipe and described hot water feeding pipe, have bypass control valve control to add a shunt valve of hot water current therebetween on it.

2, hot water supply/heater by the described boiler of claim 1, it is characterized in that outside, described combustion chamber is equipped with a bimetal leaf and is prevented to be caused by described burner overheated on fire, whether described burner is other is equipped with a sensor and detects described burner and light a fire.

3, the hot water supply/heater by the described boiler of claim 1 is characterized in that described burner comprises a fuel filter and a fuel preheating device.

4, by the hot water supply/heater of the described boiler of claim 1, it is characterized in that, add the hot-water circulation pipe and go up between the import of described combustion chamber and an auxiliary water-feeding tube steam trap is arranged.

5, hot water supply/heater by the described boiler of claim 1, it is characterized in that, described converter comprises one at the check ball that moves up and down under the control of described control part in described converter, thus conversion add hot water to described add hot water feed pipe or the described supplier who adds the hot water shunt valve to.

6, the hot water supply/heater by the described boiler of claim 2 is characterized in that, the outlet of described heat-exchanging chamber is equipped with first thermistor detection output and is added the temperature of hot water, detects external temperature and second thermistor is housed in the described boiler jacket 1.

7, hot water supply/heater by claim 2 or 6 described boilers, it is characterized in that, described converter is connected with the described outlet of described heat exchanger, the described hot-water circulation pipe of adding and described auxiliary water-feeding tube, thereby prevents to supply water to the described hot-water circulation pipe of adding under the control at described control part under the hot-water supply mode.

8, the hot water supply/heater by the described boiler of claim 1 is characterized in that, a switch electro-detection is housed on the hot water feeding pipe whether uses hot water and export a signal of telecommunication to described controller.

9, the hot water supply/heater by the described boiler of claim 1 is characterized in that, on the described direct water feed pipe de-icer and an over-pressure safety device is housed.

10, the hot water supply/heater by the described boiler of claim 1 is characterized in that, described boiler jacket outside is equipped with bimetal leaf detection external temperature and whether is lower than predetermined value, exports a signal with described controller.

11, the hot water supply/heater by the described boiler of claim 1 is characterized in that described bypass control valve is a magnet valves.

12, hot water supply/heater by the described boiler of claim 4, it is characterized in that described direct water feed pipe comprises that one is stretched over the arm of the import of described steam trap, have manual changeable water supply controller manually to control the opening/closing of described arm for the user on it.