CN211290526U - Wall-mounted furnace - Google Patents

Abstract

The utility model provides a wall-hung boiler, comprising: a heating device; a heating and heating system, including a first heated section and a first heating branch section located between the first heated section and the first outlet; domestic water The heating system includes a second heated section, a second heating branch section located upstream of the second heated section, and a third heating branch section located downstream of the second heated section; the first valve device is located in the second heating section. A heating branch section and a second heating branch section have a first state in which the first heated section is connected to the first heating branch section and the second heating branch section is connected to the second heated branch section. , and the second state in which the first heated section is connected to the second heated section; the connecting pipeline connects the third heating branch and the first heating branch; the second valve device is located in the connecting pipeline On the third heating branch section, there is a third state in which the second heated section is connected with the third heating branch section, and a fourth state in which the second heated section is connected with the connecting pipeline.

Description

a wall-hung furnace

technical field

The utility model relates to the technical field of wall-hung boilers, in particular to a wall-hung boiler.

Background technique

Wall-hung boilers are dual-purpose boilers with heating and domestic hot water functions, but most of the existing wall-hung boilers adopt the principle of giving priority to domestic hot water, that is, when using the hot water function, the heating function needs to be stopped and heating cannot be performed. When people need heating and hot water at the same time, especially in cold winter, if domestic hot water is used for a long time, the room temperature will drop drastically, which will reduce the user's comfort experience and lead to unnecessary energy. consume.

The prior art discloses a dual-system dual-purpose wall-hung boiler, comprising: a wall-hung boiler body, a heating heat exchanger and a living heat exchanger installed in the wall-hung boiler body, and a heating heat exchanger connected to the heating heat exchanger The heating pipeline and the domestic hot water pipeline connected to the domestic heat exchanger, the heating heat exchanger and the domestic heat exchanger are independent of each other, and the heating heat exchanger is provided with a heating burner, Corresponding to the domestic heat exchanger, a domestic burner is provided, and gas is supplied to the heating burner and the domestic burner respectively through a gas branch pipe, and the heating burner and the domestic burner are controlled separately.

In the above-mentioned prior art, the domestic burner can only be used to heat domestic water. When domestic hot water is not needed, the domestic burner is turned off, and the heating burner is used for heating. When a higher heating temperature is required and domestic hot water is not required When the living burner is in an idle state, the above-mentioned wall-hung boiler cannot provide a higher heating temperature.

Utility model content

Therefore, the technical problem to be solved by the present invention is to overcome the defect that the wall-hung boiler in the prior art cannot provide a higher heating temperature, so as to provide a wall-hung boiler that can provide a higher heating temperature.

In order to solve the above-mentioned technical problems, the utility model provides a wall-hung boiler, comprising:

heating equipment;

A heating and heating system has a first inlet and a first outlet, the heating and heating system includes a first heated section heated by the heating device, and a first heated section located between the first heated section and the first outlet The first heating branch between the

The domestic water heating system has a second inlet and a second outlet, the domestic water heating system includes a second heated section heated by the heating device, and a second heating section located upstream of the second heated section a branch section, and a third heating branch section located downstream of the second heated section;

The first valve device is arranged on the first heating branch section and the second heating branch section, and has the function of connecting the first heated section and the first heating branch section, the A first state in which the second heating branch section is in conduction with the second heated section, and a second state in which the first heated section is in conduction with the second heated section;

connecting pipelines, connecting the third heating branch section and the first heating branch section;

a second valve device, which is arranged on the connecting pipeline and the third heating branch, and has a third state in which the second heated section and the third heating branch are connected, and A fourth state in which the second heated section is connected to the connecting pipeline.

The first valve device includes a four-way valve, which is respectively connected with the outlet of the first heated section, the inlet of the first heating branch section, the outlet of the second heating branch section, and the second heated section. The inlet of the heating section is communicated.

The second valve device includes a three-way valve, which is respectively communicated with the outlet of the second heated section, the inlet of the third heating branch section, and the connecting pipeline.

The domestic water heating system includes:

a heating pipeline, having the second inlet and the second outlet;

The auxiliary heat supply pipeline, which exchanges heat with the second heat supply pipeline, has a heat exchange medium outflow port and a medium return port, and the auxiliary heat supply pipeline includes the second heated section and is located in the first heated section. A first auxiliary branch section between the two heated sections and the medium outflow port, and a second auxiliary branch section between the second heated section and the medium return port, the first auxiliary branch section The second heating branch is the second heating branch, and the second auxiliary branch is the third heating branch.

It also includes a first heat exchanger, the heating device heats the first heat exchanger, and the first heated section is arranged through the first heat exchanger and exchanges with the first heat exchanger hot.

The first heated section is arranged through the first heat exchanger in an S-curve shape.

It also includes a second heat exchanger, the heating device heats the second heat exchanger, and the second heated section is arranged through the second heat exchanger and exchanges with the second heat exchanger hot.

The second heated section is arranged through the second heat exchanger in an S-curve shape.

Also includes a third heat exchanger arranged on the heat supply pipeline and the auxiliary heat supply pipeline, the third heat exchanger is used for the water in the heat supply pipeline and the auxiliary heat supply pipeline. The heat exchange medium in the road conducts heat exchange.

The third heat exchanger is a plate heat exchanger.

The heating device includes:

a burner, connected to a gas pipeline, the burner is provided with a first fire row for heating the first heated section and a second fire row for heating the second heated section, the gas pipe There is a third valve device on the road to control the on-off of gas;

The ignition device respectively ignites the first fire bank and the second fire bank.

The gas pipeline comprises a main gas pipeline, a first gas branch connecting the main gas pipeline and the first fire exhaust, and a second gas branch connecting the main gas pipeline and the second exhaust, The third valve device includes a gas proportional valve arranged on the main gas pipeline, a first segment solenoid valve arranged on the first gas branch, and a second segment arranged on the second gas branch The electromagnetic valve.

A first temperature measuring element is provided on the first heating branch near the first outlet.

The first temperature measuring element is a first temperature sensing package.

A second temperature measuring element is provided on the heating pipeline near the second outlet.

The second temperature measuring element is a second temperature sensing package.

It also includes a casing, the burner, the first heat exchanger, and the second heat exchanger are all arranged in the casing, the upper end of the casing is provided with a vent, and the casing is close to the A fan is provided at the vent.

An air pressure switch is provided at the vent.

It also includes a controller, which is respectively connected with the air pressure switch, the gas proportional valve, the first segment solenoid valve, the second segment solenoid valve, the first valve device, and the second valve device. , the ignition device and the fan are electrically connected.

The technical scheme of the utility model has the following advantages:

1. A wall-hung boiler provided by the utility model, when the first valve device is in the first state, when the heating device heats the first heated section, the heating heating system can provide heating heat, and the heating device heats the second heated section. When the first heated section and the second heated section are heated by the heating device at the same time, the wall-hung boiler can provide both heating heat and domestic hot water. When When the domestic hot water does not need to be used, the first valve device is switched to the second state, and the second valve device is switched to the fourth state. After the heating medium in the first heated section is heated by the heating device, it enters through the first valve device. After the second heated section is heated again, it flows through the connecting pipeline and finally flows into the first heating branch section. The heating medium is double-heated and the temperature is higher, which can provide higher heating temperature.

2. The utility model provides a wall-hung boiler, wherein the first valve device includes a four-way valve, which is respectively connected with the outlet of the first heated section, the inlet of the first heating branch section, and the second heating section. The outlet of the heating branch section and the inlet of the second heated section communicate with each other, and the structure of the first valve device is simple, which is convenient for installation and control.

3. The utility model provides a wall-hung boiler, wherein the second valve device includes a three-way valve, which is respectively connected with the outlet of the second heated section, the inlet of the third heating branch section, and the connecting pipe. The second valve device has a simple structure and is easy to install and control.

4. A wall-hung boiler provided by the present utility model, the domestic water heating system includes: a heating pipeline with the second inlet and the second outlet; an auxiliary heating pipeline and the second The heat supply pipeline performs heat exchange, and has a heat exchange medium outflow port and a medium return port. The auxiliary heat supply pipeline includes the second heated section and is located between the second heated section and the medium outflow port. The first auxiliary branch section between the two heating sections, and the second auxiliary branch section located between the second heated section and the medium return port, the first auxiliary branch section is the second heating branch section, so The second auxiliary branch is the third heating branch, the domestic water enters through the second inlet, and after heat exchange with the auxiliary heating pipeline, it becomes domestic hot water, and the heat exchange between the domestic water and the auxiliary heating pipeline can be It is avoided that the heating device directly heats the domestic water and the temperature is too high, which is unfavorable for use. At the same time, the flow path of the domestic water is shortened, and the long flow path is avoided, resulting in a waste of cold water.

5. A wall-hung boiler provided by the present utility model further comprises a first heat exchanger, the heating device heats the first heat exchanger, and the first heated section is arranged through the first heat exchanger. On the heat exchanger, it exchanges heat with the first heat exchanger, the heating device heats the first heat exchanger, and the first heated section exchanges heat with the first heat exchanger, which can prevent the heating device from directly heating the first heated section. The temperature is too high, causing damage to the pipeline.

6. The utility model provides a wall-hung boiler, wherein the first heated section is arranged through the first heat exchanger in an S-curve shape, the heat exchange area is large, and the heat exchange efficiency is high.

7. A wall-hung boiler provided by the present invention further comprises a second heat exchanger, the heating device heats the second heat exchanger, and the second heated section is arranged through the second heat exchanger. On the heat exchanger, it exchanges heat with the second heat exchanger, the heating device heats the second heat exchanger, and the second heated section exchanges heat with the second heat exchanger, which can prevent the heating device from directly heating the second heated section. The temperature is too high, resulting in damage to the pipeline.

8. The utility model provides a wall-hung boiler, wherein the second heated section is arranged through the second heat exchanger in an S-curve shape, the heat exchange area is large, and the heat exchange efficiency is high.

9. A wall-hung boiler provided by the present invention further comprises a third heat exchanger arranged on the heat supply pipeline and the auxiliary heat supply pipeline, and the third heat exchanger is used for supplying heat to the heat supply. The water in the pipeline exchanges heat with the heat exchange medium in the auxiliary heat supply pipeline, which can ensure the heat exchange efficiency.

10. In the wall-hung boiler provided by the utility model, the third heat exchanger is a plate heat exchanger, and the heat exchange efficiency is high.

11. A wall-hung boiler provided by the present utility model, the heating device comprises: a burner connected to a gas pipeline, the burner is provided with a first fire row for heating the first heated section, a The second fire row heated by the second heating section, the gas pipeline is provided with a third valve device for controlling the on-off of the gas; the ignition device, which respectively ignites the first fire row and the second fire row, can The first fire row and the second fire row are individually controlled, so that the first heated section and the second heated section are controlled to be heated respectively, which is convenient for controlling the work of the wall-hung boiler.

12. A wall-hung boiler provided by the present utility model, the gas pipeline comprises a main gas pipeline, a first gas branch connecting the main gas pipeline and the first fire row, and connecting the main gas pipeline and the The second gas branch of the second fire exhaust, the third valve device includes a gas proportional valve arranged on the main gas pipeline, a first segment solenoid valve arranged on the first gas branch, and a gas proportional valve arranged on the main gas pipeline. The second segmented solenoid valve on the second gas branch, the gas proportional valve can control the opening and closing of the gas and the size of the gas flow, and the use of the segmented solenoid valve is convenient to accurately control the power of the first fire row and the second fire row. , to achieve precise temperature control of heating system and domestic hot water heating system.

13. In a wall-hung boiler provided by the present invention, a first temperature measuring element is provided on the first heating branch near the first outlet, which facilitates accurate control of the heating temperature of the heating and heating system.

14. The utility model provides a wall-hung boiler, wherein the first temperature measuring element is a first temperature sensing package, which has a simple structure and is easy to install.

15. In the wall-hung boiler provided by the present utility model, a second temperature measuring element is arranged on the heating pipeline near the second outlet, which facilitates accurate control of the outlet water temperature of the domestic hot water heating system.

16. A wall-hung boiler provided by the present utility model, wherein the second temperature measuring element is a second temperature sensing package, and the structure can be seen there, which is convenient for installation.

17. A wall-hung boiler provided by the present utility model further comprises a casing, the burner, the first heat exchanger, and the second heat exchanger are all arranged in the casing, and the The upper end is provided with a vent, and a fan is provided in the casing near the vent, and the fan can provide the air required for combustion and discharge the flue gas generated by the combustion when working.

18. A wall-hung boiler provided by the present utility model, an air pressure switch is provided at the air vent, and the air pressure switch can detect whether the inside of the flue is normal.

19. A wall-hung boiler provided by the present utility model further comprises a controller, which is respectively connected with the air pressure switch, the gas proportional valve, the first segment solenoid valve, the second segment solenoid valve, and the The first valve device, the second valve device, the ignition device, and the fan are electrically connected, so as to automatically control the automatic switching of various working modes of the wall-hung boiler.

Description of drawings

In order to more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following will briefly introduce the accompanying drawings that need to be used in the description of the specific embodiments or the prior art. Obviously, the following descriptions The accompanying drawings are some embodiments of the present invention. For those of ordinary skill in the art, other drawings can also be obtained based on these drawings without creative efforts.

Fig. 1 is the structural representation of a kind of wall-hung boiler provided in the embodiment of the present utility model;

Fig. 2 is a partial enlarged view of the wall-hung boiler shown in Fig. 1;

Description of reference numbers:

1-air pressure switch; 2-fan; 3-first heat exchanger; 4-first ignition needle; 5-first ignition needle; 6-expansion tank; 7-first segment solenoid valve; 8-second Segmented solenoid valve; 9-first water pump; 10-gas proportional valve; 11-first inlet; 12-gas main line; 13-second inlet; 14-second outlet; 15-first outlet; 16-water Flow sensor; 17-second temperature measuring element; 18-plate heat exchanger; 19-second water pump; 20-first temperature measuring element; 21-burner; 22-second ignition needle; 23-second ignition needle ; 24 - temperature limiter; 25 - three-way valve; 26 - connecting pipeline; 27 - second heat exchanger; 28 - four-way valve.

Detailed ways

The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are a part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner" and "outer" The orientation or positional relationship indicated by etc. is based on the orientation or positional relationship shown in the accompanying drawings, which is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the referred device or element must have a specific orientation, with a specific orientation. Therefore, it should not be construed as a limitation on the present invention. Furthermore, the terms "first", "second", and "third" are used for descriptive purposes only and should not be construed to indicate or imply relative importance.

In the description of the present invention, it should be noted that, unless otherwise expressly specified and limited, the terms "installed", "connected" and "connected" should be understood in a broad sense, for example, it may be a fixed connection or a connectable connection. Detachable connection, or integral connection; may be mechanical connection or electrical connection; may be direct connection, or indirect connection through an intermediate medium, or internal communication between two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood in specific situations.

In addition, the technical features involved in the different embodiments of the present invention described below can be combined with each other as long as there is no conflict with each other.

Example 1

This embodiment provides a specific implementation of a wall-hung boiler, as shown in Figures 1 and 2, including a heating device, a heating and heating system, a domestic water heating system, a first valve device, a connecting pipeline 26, and a second valve device, first heat exchanger 3, second heat exchanger 27.

The heating and heating system has a first inlet 11 and a first outlet 15, and the heating and heating system includes a first heated section heated by the heating device, and a first heated section located between the first heated section and the first heated section. A first heating branch between the outlets 15 . A temperature limiter 24 is provided on the first heating branch, which can limit the output temperature of the first heating branch.

The domestic water heating system has a second inlet 13 and a second outlet 14, the domestic water heating system includes a second heated section heated by the heating device, and a second heating section located upstream of the second heated section. a heating branch, and a third heating branch located downstream of the second heated section.

The first valve device is arranged on the first heating branch section and the second heating branch section, and has the function of connecting the first heated section and the first heating branch section, and the first heating branch section. A first state in which the two heating branch sections are in conduction with the second heated section, and a second state in which the first heated section and the second heated section are in conduction. In this embodiment, the first valve device includes a four-way valve 28, which is respectively connected with the outlet of the first heated section, the inlet of the first heating branch section, and the second heating branch section. The outlet communicates with the inlet of the second heated section. Of course, in an alternative embodiment, the first valve means may be a five-way valve.

The connecting pipeline 26 connects the third heating branch section and the first heating branch section.

The second valve device is arranged on the connecting pipeline 26 and the third heating branch, and has a third state that makes the second heated section and the third heating branch communicate with each other, and The fourth state in which the second heated section is connected to the connecting pipeline 26 . In this embodiment, the second valve device includes a three-way valve 25 , which is respectively connected to the outlet of the second heated section, the inlet of the third heating branch section, and the connecting pipeline 26 . In an alternative embodiment, the second valve device includes one-way valves respectively provided on the connecting pipeline 26 and the third heating branch, and the second valve can be adjusted by controlling the opening of the two one-way valves status of the device.

In this embodiment, the domestic water heating system includes a heating pipeline and an auxiliary heating pipeline, and the heating pipeline has the second inlet 13 and the second outlet 14, which are close to the heating pipeline. The second inlet 13 is provided with a water flow sensor 16. The water flow sensor 16 is connected to the controller. When the water flow is small, it is fed back to the controller to adjust the water flow. The auxiliary heating pipeline is connected to the second heating pipeline. For heat exchange, it has a heat exchange medium outflow port and a medium return port, the auxiliary heat supply pipeline includes the second heated section, and the first heated section is located between the second heated section and the medium outflow port. an auxiliary branch section, and a second auxiliary branch section located between the second heated section and the medium return port, the first auxiliary branch section is the second heating branch section, the second auxiliary branch section The branch is the third heating branch.

The heating device heats the first heat exchanger 3 , and the first heated section is disposed on the first heat exchanger 3 through and exchanges heat with the first heat exchanger 3 . As a preferred embodiment, the first heated section is arranged through the first heat exchanger 3 in an S-curve shape.

The heating device heats the second heat exchanger 27 , and the second heated section is disposed on the second heat exchanger 27 through and exchanges heat with the second heat exchanger 27 . As a preferred embodiment, the second heated section is arranged through the second heat exchanger 27 in an S-curve shape.

A third heat exchanger is arranged on the heat supply pipeline and the auxiliary heat supply pipeline, and the third heat exchanger is used for the water in the heat supply pipeline and the water in the auxiliary heat supply pipeline. The heat exchange medium conducts heat exchange. As a preferred embodiment, the third heat exchanger is a plate heat exchanger 18 .

In this embodiment, the heating device includes a burner 21 and an ignition device, the burner 21 is connected to a gas pipeline, and the burner 21 is provided with a first fire exhaust for heating the first heated section, For the second fire row heated by the second heating section, the first fire row is provided with a corresponding first ignition needle 4 and a first fire detection needle 5, and the first ignition needle 4 is used for igniting the first fire row, The first ignition needle 5 is used to detect whether the ignition is successful, and the second ignition needle 23 and the second ignition needle 22 are provided on the second ignition row. The second ignition needle 23 is used to ignite the second ignition row. The fire needle 22 is used to detect whether the ignition is successful, and the gas pipeline is provided with a third valve device for controlling the on-off of the gas; the ignition device respectively ignites the first fire row and the second fire row.

The gas pipeline includes a main gas pipeline 12, a first gas branch connecting the main gas pipeline 12 and the first fire row, and a second gas pipeline connecting the main gas pipeline 12 and the second fire row. branch, the third valve device includes a gas proportional valve 10 arranged on the main gas pipeline 12, a first segment solenoid valve 7 arranged on the first gas branch, and a gas proportional valve 7 arranged on the second gas branch The second segment solenoid valve 8 on the branch.

A first temperature measuring element 20 is provided on the first heating branch near the first outlet 15 .

The first temperature measuring element 20 is a first temperature sensing package.

A second temperature measuring element 17 is provided on the heating pipeline near the second outlet 14 .

The second temperature measuring element 17 is a second temperature sensing package.

It also includes a casing, the burner 21, the first heat exchanger 3, and the second heat exchanger 27 are all arranged in the casing, the upper end of the casing is provided with a vent, the casing A fan 2 is provided in the body near the vent.

An air pressure switch 1 is provided at the air vent.

It also includes a controller, which is respectively connected with the air pressure switch 1, the gas proportional valve 10, the first segment solenoid valve 7, the second segment solenoid valve 8, the first valve device, the The second valve device, the ignition device, and the fan 2 are electrically connected.

In this embodiment, water is used as the heating medium in the heating and heating system, and water is used as the heat exchange medium in the auxiliary heating pipeline. Of course, in alternative embodiments, other fluids may also be used for the heating medium and the heat exchange medium.

As shown in FIG. 1 , an expansion tank 6 is connected to the pipeline between the first heated section and the first inlet 11 .

When low-power heating is required alone, the single-heating low-power mode is enabled by the controller, and the controller controls the fan 2 to start. When the air pressure switch 1 detects the pressure difference signal generated by the airflow of the fan 2 on the venturi tube at the vent, the The signal is fed back to the controller, the controller controls the operation of the first water pump 9 arranged on the pipeline between the first inlet 11 and the first heated section, the ignition device discharges the first ignition needle 4 to ignite, and the gas proportional valve 10, The first segment solenoid valve 7 is opened to pass gas to the first gas branch, the first fire row starts to burn, the first fire row heats the first heat exchanger 3, and the heating medium enters the water pump through the first inlet 11 and then enters the first fire row. The heated section, the first heated section exchanges heat with the first heat exchanger 3, the heating medium is heated, and the heated heating medium passes through the four-way valve 28 and then enters the first heating branch section, and then enters through the first outlet 15. Heating end, to meet the needs of independent low-power heating.

When separate domestic hot water is required, the single domestic hot water mode is enabled through the controller, and the controller controls the fan 2 to start. The signal is fed back to the controller, the controller controls the operation of the second water pump 19 arranged on the second heating branch, the ignition device ignites the discharge of the second ignition needle 23, the gas proportional valve 10 and the second segment solenoid valve 8 are opened Pass gas to the second gas branch, the second fire row starts to burn, the second fire row heats the second heat exchanger 27, and the heat exchange medium flows through the four-way valve 28 into the second heat exchanger after passing through the second heating branch. Heating section, after the second heated section exchanges heat with the second heat exchanger 27, the heat exchange medium is heated, and then flows into the third heating branch section through the three-way valve 25, and then flows between the third heat exchanger and the heat supply pipe. After heat exchange with the third heat exchanger in the heat supply pipeline, the domestic water flows out through the second outlet 14 to provide domestic hot water.

When heating and domestic hot water are required at the same time, the simultaneous heating and domestic hot water mode is enabled through the controller, and the controller controls the fan 2 to start. When the air pressure switch 1 detects the pressure generated by the airflow of the fan 2 on the venturi tube at the vent The difference signal is fed back to the controller. The controller controls the first water pump 9 and the second water pump 19 to run at the same time. The ignition device discharges the first ignition needle 4 and the second ignition needle 23 to ignite. The gas proportional valve 10 and the first The segmented solenoid valve 7 and the second segmented solenoid valve 8 are opened to pass gas to the first gas branch and the second gas branch, and the first fire row and the second fire row burn at the same time. The first fire row heats the first heat exchanger 3, the heating medium enters the water pump through the first inlet 11 and then enters the first heated section, the first heated section exchanges heat with the first heat exchanger 3, and the heating medium is heated, The heated heating medium enters the first heating branch through the four-way valve 28, and then enters the heating end through the first outlet 15; the second fire row heats the second heat exchanger 27, and the heat exchange medium passes through the second heating supply. After the branch section, it flows into the second heated section through the four-way valve 28. After the second heated section exchanges heat with the second heat exchanger 27, the heat exchange medium is heated, and then flows into the third heating branch through the three-way valve 25. After the heat transfer section, the third heat exchanger exchanges heat with the heating pipeline, and after the domestic water exchanges heat with the third heat exchanger in the heating pipeline, it flows out through the second outlet 14, which can meet the requirements of simultaneous heating and domestic hot water. demand.

When high-power heating is required, the single-heating high-power mode is enabled by the controller, and the controller controls the fan 2 to start. When the air pressure switch 1 detects the differential pressure signal generated by the airflow of the fan 2 on the venturi tube at the vent, the The signal is fed back to the controller, the controller controls the operation of the first water pump 9 arranged on the pipeline between the first inlet 11 and the first heated section, and the ignition device discharges the first ignition needle 4 and the second ignition needle 23 to ignite , the gas proportional valve 10, the first segment solenoid valve 7, and the second segment solenoid valve 8 are opened to pass gas to the first gas branch and the second gas branch. The through valve 25 is switched to the fourth state in which the second heated section is connected to the connecting pipeline 26; the heating medium enters the water pump through the first inlet 11 and then enters the first heated section, and the first heated section and the first heat exchanger 3 Heat exchange, the heating medium is heated, the heated heating medium enters the second heated section after passing through the four-way valve 28, the second heated section exchanges heat with the second heat exchanger 27, the heating medium is heated again, and then passes through The connecting pipeline 26 enters the first heating branch, and enters the heating end through the first outlet 15 to meet the demand for high-power heating.

As a first alternative embodiment of the above embodiment, the first heat exchanger 3 and the second heat exchanger 27 are not provided, and the heating device directly heats the first heated section and the second heated section.

As a second alternative to the above embodiment, the domestic water heating system does not have a third heat exchanger, the domestic water enters the second heated section through the second inlet 13, and the second heat exchanger 27 directly supplies the domestic water to the second heated section. The water is heated, and then flows out through the second outlet 14 to meet domestic hot water use.

As a third alternative embodiment of the above-mentioned embodiment, the heating device may adopt an electric heating method, which can respectively heat the first heat exchanger 3 and the second heat exchanger 27 .

As a fourth alternative embodiment of the above-mentioned embodiment, the control of the wall-hung boiler can be controlled manually.

Obviously, the above-mentioned embodiments are only examples for clear description, and are not intended to limit the implementation manner. For those of ordinary skill in the art, changes or modifications in other different forms can also be made on the basis of the above description. There is no need and cannot be exhaustive of all implementations here. And the obvious changes or changes derived from this are still within the protection scope of the present invention.

Claims (19)

1. A wall hanging stove, comprising:

a heating device;

a heating and heat-supplying system having a first inlet (11) and a first outlet (15), the heating and heat-supplying system including a first heated section heated by the heating device, and a first heat-supplying branch section located between the first heated section and the first outlet (15);

a domestic water heating system having a second inlet (13) and a second outlet (14), the domestic water heating system comprising a second heated section heated by the heating means, a second heating branch section upstream of the second heated section, and a third heating branch section downstream of the second heated section;

a first valve device provided on the first heat supply branch section and the second heat supply branch section, and having a first state in which the first heated section is in conduction with the first heat supply branch section, the second heat supply branch section is in conduction with the second heated section, and a second state in which the first heated section is in conduction with the second heated section;

a connecting pipeline (26) connecting the third heat supply branch section and the first heat supply branch section;

and the second valve device is arranged on the connecting pipeline (26) and the third heat supply branch section, and has a third state for communicating the second heated section with the third heat supply branch section and a fourth state for communicating the second heated section with the connecting pipeline (26).

2. The wall hanging stove as claimed in claim 1, wherein the first valve means comprises a four-way valve (28) in communication with the outlet of the first heated section, the inlet of the first heat supply branch section, the outlet of the second heat supply branch section, and the inlet of the second heated section, respectively.

3. A wall hanging stove as claimed in claim 1, characterised in that the second valve means comprises a three-way valve (25) in communication with the outlet of the second heated section, the inlet of the third heat supply branch and the connecting line (26), respectively.

4. The fireplace as claimed in claim 1, wherein the live water heating system comprises:

-a heating line having the second inlet (13) and the second outlet (14);

the auxiliary heat supply pipeline exchanges heat with the second heat supply pipeline and is provided with a heat exchange medium outflow port and a medium backflow port, the auxiliary heat supply pipeline comprises a second heated section, a first auxiliary branch section between the second heated section and the medium outflow port and a second auxiliary branch section between the second heated section and the medium backflow port, the first auxiliary branch section is the second heat supply branch section, and the second auxiliary branch section is the third heat supply branch section.

5. The wall hanging stove according to claim 1, characterized in that the stove further comprises a first heat exchanger (3), the heating device heats the first heat exchanger (3), and the first heated section is arranged on the first heat exchanger (3) in a penetrating way and exchanges heat with the first heat exchanger (3).

6. A wall hanging stove as claimed in claim 5, characterised in that the first heated section is arranged in an S-curve through the first heat exchanger (3).

7. The wall hanging stove according to claim 5, characterized in that the stove further comprises a second heat exchanger (27), the heating device heats the second heat exchanger (27), and the second heated section is arranged on the second heat exchanger (27) in a penetrating way and exchanges heat with the second heat exchanger (27).

8. The fireplace as claimed in claim 7, characterized in that the second heated section is arranged in an S-curve through the second heat exchanger (27).

9. The wall-hanging stove as claimed in claim 4, further comprising a third heat exchanger disposed on the heat supply pipeline and the auxiliary heat supply pipeline, wherein the third heat exchanger is used for exchanging heat between water in the heat supply pipeline and a heat exchange medium in the auxiliary heat supply pipeline.

10. A wall hanging stove as claimed in claim 9, characterised in that the third heat exchanger is a plate heat exchanger (18).

11. The wall hanging stove according to claim 7, wherein the heating device comprises:

the burner (21) is connected with a gas pipeline, the burner (21) is provided with a first fire grate for heating the first heated section and a second fire grate for heating the second heated section, and the gas pipeline is provided with a third valve device for controlling the on-off of gas;

and the ignition device is used for igniting the first fire bank and the second fire bank respectively.

12. The wall hanging stove according to claim 11, wherein the gas pipeline comprises a main gas pipeline (12), a first gas branch connecting the main gas pipeline (12) and the first fire grate, and a second gas branch connecting the main gas pipeline (12) and the second fire grate, and the third valve device comprises a gas proportional valve (10) arranged on the main gas pipeline (12), a first segmented solenoid valve (7) arranged on the first gas branch, and a second segmented solenoid valve (8) arranged on the second gas branch.

13. A wall hanging stove as claimed in claim 1, characterised in that the first heat supply branch is provided with a first temperature measuring element (20) adjacent the first outlet (15).

14. The wall hanging stove as claimed in claim 13, wherein the first temperature measuring element (20) is a first bulb.

15. A wall hanging stove as claimed in claim 4, characterised in that a second temperature sensing element (17) is provided on the heating circuit adjacent the second outlet (14).

16. The wall hanging stove as claimed in claim 15, wherein the second temperature measuring element (17) is a second bulb.

17. The wall hanging stove according to claim 12, further comprising a housing, wherein the burner (21), the first heat exchanger (3) and the second heat exchanger (27) are all disposed in the housing, a vent is disposed at an upper end of the housing, and a fan (2) is disposed in the housing near the vent.

18. The wall hanging stove as claimed in claim 17, wherein a wind pressure switch (1) is provided at the ventilating opening.

19. The hanging stove according to claim 18, further comprising a controller electrically connected to the wind pressure switch (1), the gas proportional valve (10), the first segment solenoid valve (7), the second segment solenoid valve (8), the first valve device, the second valve device, the ignition device, and the fan (2).

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