CN211233382U - fireplace - Google Patents

Abstract

The utility model relates to the technical field of household appliances, in particular to a wall-hung boiler, comprising: a first main heating pipeline with a first inlet and a first outlet; a second main heating pipeline with a second inlet and a second outlet outlet; heating device, heating the first main heating pipeline; flow distributor, arranged on the first main heating pipeline, located between the heating device and the first outlet; auxiliary heating pipeline, one end of which is distributed with the flow The auxiliary port of the heat storage device is connected to the auxiliary port, and the other end is connected to the first inlet; the heat storage heat exchanger is arranged on the auxiliary heat supply pipeline. The second main heat supply pipeline conducts heat exchange. By setting the flow distributor, it is possible to supply heating water and domestic water at the same time; at the same time, the heat storage medium absorbs heat and stores it. When the user needs it, the domestic cold water and the heat stored in the heat storage medium directly exchange heat, without waiting, heating It is more timely and improves the user experience.

Description

fireplace

technical field

The utility model relates to the technical field of household appliances, in particular to a wall-hung furnace.

Background technique

The wall-hung boiler uses natural gas, artificial gas or liquefied gas as fuel. After the fuel is burned in the combustion chamber, the heat is absorbed by the main heat exchanger. When the circulating water in the building passes through the main heat exchanger, it is heated back and forth, thereby Continuously output heat to the building, providing a heat source for the building.

A wall-hung boiler is disclosed in the prior art, and the water heated by the burner is divided into two branches by a split control device, one leads to heating water, and the other leads to domestic water such as bathroom water, so as to achieve simultaneous supply in winter. Heating and domestic water, supply domestic hot water in summer, but when this structure supplies domestic water, the domestic water is heated by direct heat exchange between the heat exchanger and the water heated by the burner, so that when the user has demand, the diversion control The device will control the flow of the branch leading to the domestic water, and then the water heated by the burner flowing through the branch will flow into the heat exchanger to heat up the domestic water. Due to the influence of pressure and water flow, when the user opens the faucet, the hot water cannot be directly obtained, and the user experience is poor.

Utility model content

Therefore, the technical problem to be solved by the present invention is to overcome the defect of poor user experience of wall-hung boilers capable of simultaneously supplying heating hot water and domestic hot water in the prior art, so as to provide a wall-hung boiler capable of simultaneously supplying heating hot water and domestic hot water And the user experience is a good wall hanging furnace.

A wall-mounted stove, comprising:

a first main heating pipeline with a first inlet and a first outlet;

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

a heating device for heating the first main heat supply pipeline;

a flow distributor, arranged on the first main heating pipeline, between the heating device and the first outlet;

an auxiliary heating pipeline, one end of which is communicated with the auxiliary port of the flow distributor, and the other end is communicated with the first inlet;

A heat storage heat exchanger is arranged on the auxiliary heat supply pipeline, the heat storage heat exchanger includes a heat storage medium, and the heat storage medium absorbs the heat of the auxiliary heat supply pipeline to supply the second main supply Heat pipe for heat exchange.

It also includes a thermal insulation structure, which is arranged on the outer wall of the heat storage heat exchanger.

The heat storage medium is water.

The heating device includes a burner and a main heat exchanger, and the high-temperature flue gas generated by the burner heats the pipeline provided in the main heat exchanger of the first main heat supply pipeline.

It also includes an auxiliary branch, one end is connected to the pipeline between the flow distributor and the first outlet of the first main heat supply pipeline, and the other end is connected to the auxiliary heat supply pipeline located in the heat storage. A pipeline between the heat exchanger and the first inlet.

Also includes:

a first valve, located on the auxiliary branch;

The second valve is arranged on the pipeline between the heat storage heat exchanger and the first inlet of the auxiliary heat supply pipeline.

It also includes a controller, which is connected with the first valve and the second valve and used to control the opening and closing of the first valve and the second valve.

A first temperature detection device is provided on the pipeline between the heat storage heat exchanger and the first inlet of the auxiliary heating pipeline, and the first temperature detection device is connected to the controller;

When the detected temperature of the first temperature detection device is greater than the preset heating temperature, and the difference between the two is greater than 5° C., the controller controls the first valve to be opened and the second valve to be closed.

When the domestic water meets the preset temperature, or the detected temperature of the first temperature detection device is less than or equal to the preset heating temperature, and the difference between the two is less than 5°C, the controller controls the first valve to close , the second valve is opened.

It also includes a water pressure balance pipeline, which is connected to the first main heat supply pipeline, and an expansion water tank is arranged on the water pressure balance pipeline.

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

1. The wall-hung boiler provided by the utility model comprises: a first main heating pipeline with a first inlet and a first outlet; a second main heating pipeline with a second inlet and a second outlet; The first main heat supply pipeline is heated; the flow distributor is arranged on the first main heat supply pipeline and is located between the heating device and the first outlet; the auxiliary heat supply pipeline has one end connected to the The auxiliary port of the flow distributor is in communication, and the other end is in communication with the first inlet; a heat storage heat exchanger is arranged on the auxiliary heat supply pipeline, the heat storage heat exchanger includes a heat storage medium, and the The heat storage medium absorbs the heat of the auxiliary heat supply line to exchange heat with the second main heat supply line. By arranging the flow distributor, the first main heat supply pipeline and the second main heat supply pipeline, the flow distributor distributes the water in the first main heat supply pipeline heated by the heating device to supply the heat and heat required by the first aspect. To supply the heat of the second demand, for example, during use, the first inlet can be connected with the return pipe of the heating pipeline, the first outlet can be connected with the water supply pipe of the heating pipeline, and the second inlet can be connected with the return pipe of domestic water, The second outlet is connected to the water supply pipe for domestic water, so as to supply heating water and domestic water at the same time; at the same time, since the heat storage heat exchanger is set on the auxiliary heat supply pipeline, the heat storage medium in the heat storage heat exchanger absorbs auxiliary The heat of the heat supply pipeline exchanges heat with the second main heat supply pipeline, so that the heat storage medium absorbs the heat of the water heated by the heating device and stores it, so that when the user needs it, the faucet can be opened at any time, through the second inlet. The inflowing domestic cold water can directly exchange heat with the heat stored in the heat storage medium in the heat storage heat exchanger, without waiting, and the heating is timely. Moreover, due to the stored heat of the heat storage medium, even if the user turns on multiple faucets at the same time, it can be To meet the demand, it is less affected by the user's water pressure and water flow, that is, when the user opens the faucet, he can directly obtain hot water, and it also prevents the frequent opening of the unit when the user needs a small amount of water such as brushing teeth and washing hands. user experience.

2. The wall-hung boiler provided by the utility model further comprises a heat preservation structure, which is arranged on the outer wall of the heat storage heat exchanger. By arranging the thermal insulation structure on the outer wall of the heat storage heat exchanger, the heat storage effect of the heat storage heat exchanger is better, and the heat is prevented from being dissipated too much outward.

3. In the wall-hung boiler provided by the utility model, the heat storage medium is water. By setting the heat storage medium as water, it is convenient to obtain the heat storage medium while satisfying the heat storage effect.

4. The wall-hung boiler provided by the present invention further comprises an auxiliary branch, one end of which is connected to the pipeline between the flow distributor and the first outlet of the first main heating pipeline, and the other end is connected to the The auxiliary heat supply line is located between the heat storage heat exchanger and the first inlet. By setting an auxiliary branch, in the process of supplying heating and domestic water to the wall-hung boiler at the same time, if the heat stored in the heat storage heat exchanger still remains after the domestic water is supplied, it can be supplied to the heating water through the auxiliary branch to improve the energy consumption. utilization.

5. The wall-hung boiler provided by the utility model further comprises: a first valve, which is arranged on the auxiliary branch; a second valve, which is arranged on the auxiliary heat supply pipeline between the heat storage heat exchanger and the first valve. on the pipeline between the inlets. By setting the first valve and the second valve, in the process of supplying heating and domestic water at the same time, the wall-hung boiler can conveniently control the parallel or series operation of the heating and domestic water, and utilize energy rationally.

6. The wall-hung boiler provided by the present invention further comprises a controller, the controller is connected with the first valve and the second valve, and is used to control the opening and closing of the first valve and the second valve. By setting the controller to be connected with the first valve and the second valve, the opening and closing of the first valve and the second valve can be automatically controlled, and the fully automatic control of the wall-hung boiler can be realized.

7. In the wall-hung boiler provided by the present invention, the auxiliary heating pipeline is provided with a first temperature detection device on the pipeline between the heat storage heat exchanger and the first inlet, and the first temperature detection device is The device is connected to the controller; when the detected temperature of the first temperature detection device is greater than the preset heating temperature, and the difference between the two is greater than 5°C, the controller controls the first valve to open, The second valve is closed. By setting the first temperature detection device, when the detected temperature of the first temperature detection device is greater than the preset heating temperature, and the difference between the two is greater than 5°C, the controller controls the first valve to open and the second valve to close, so that the heating water is used. It runs in series with the domestic water pipeline, that is, the heat stored in the heat storage heat exchanger can be used to supply heating water on the basis of meeting the domestic water supply, ensuring the full utilization of energy.

8. In the wall-hung boiler provided by the present invention, when the domestic water meets the preset temperature, or the detected temperature of the first temperature detection device is less than or equal to the preset heating temperature, and the difference between the two is less than 5°C, the The controller controls the first valve to close and the second valve to open. Since the domestic water meets the preset temperature requirement, there is no need to supply heat to the domestic water; or when the temperature detected by the first temperature detection device is less than or equal to the heating temperature, and the difference between the two is less than 5°C, heat storage The stored heat of the heat exchanger can only supply domestic water, and there is no excess energy to supply heating water. The controller controls the first valve to close, the second valve to open, and the heating water and domestic water to operate in parallel mode to ensure the normal operation of the wall-hung boiler. .

9. The wall-hung boiler provided by the present utility model further comprises a water pressure balance pipeline, which is connected to the first main heat supply pipeline, and an expansion water tank is arranged on the water pressure balance pipeline. By setting the expansion water tank, the water pressure balance of each pipeline of the wall-hung boiler can be ensured.

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 the wall-hung boiler of the present utility model;

Fig. 2 is the structural schematic diagram of the wall-hung boiler of the utility model supplying heating water alone;

3 is a schematic structural diagram of the wall-hung boiler of the present invention supplying domestic water alone;

4 is a schematic structural diagram of a parallel mode in which the wall-hung boiler of the present invention simultaneously supplies heating water and domestic water;

5 is a schematic structural diagram of a series connection mode in which the wall-hung boiler of the present invention simultaneously supplies heating water and domestic water;

Description of reference numbers:

1- auxiliary branch; 2- main heat exchanger; 3- burner; 4- second temperature detection device; 5- flow distributor; 6- heat storage heat exchanger; 7- fourth temperature detection device; 8- 2nd outlet; 9-second inlet; 10-third temperature detection device; 11-heating pipeline; 12-first temperature detection device; 13-first valve; 14-second valve; 15-water pump; 16- Proportional valve; 17-expansion tank; 18-first outlet; 19-first inlet; 20-auxiliary heating pipeline; 21-first main heating pipeline; 22-second main heating pipeline.

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 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.

As shown in FIGS. 1-5 , a wall-hung boiler is provided in this embodiment, including: a first main heat supply pipeline 21 , a second main heat supply pipeline 22 , a heating device, a flow distributor 5 , and an auxiliary supply Heat circuit 20 and heat storage heat exchanger 6 .

The first main heating pipe 21 has a first inlet 19 and a first outlet 18; the second main heating pipe 22 has a second inlet 9 and a second outlet 8; The flow distributor 5 is arranged on the first main heat supply pipeline 21, between the heating device and the first outlet 18; the auxiliary heat supply pipeline 20, one end communicates with the auxiliary port of the flow distributor 5 , the other end is communicated with the first inlet 19; the heat storage heat exchanger 6 is arranged on the auxiliary heat supply pipeline 20, the heat storage heat exchanger 6 includes a heat storage medium, and the heat storage medium absorbs the heat of the auxiliary heat supply pipeline 20 Heat exchange is performed on the second main heat supply line 22 .

By arranging the flow distributor 5, the first main heat supply line 21 and the second main heat supply line 22, the flow distributor 5 distributes the water in the first main heat supply line 21 heated by the heating device to supply the first main heat supply line 21. For example, during use, the first inlet 19 can be communicated with the return pipe of the heating pipeline 11, the first outlet 18 can be communicated with the water supply pipe of the heating pipeline 11, and the second The inlet 9 is communicated with the return pipe of domestic water, and the second outlet 8 is communicated with the water supply pipe of domestic water, so as to supply heating water and domestic water at the same time (domestic water includes bathroom water, kitchen water, etc.); A heat storage heat exchanger 6 is arranged on the pipeline 20, and the heat storage medium in the heat storage heat exchanger 6 absorbs the heat of the auxiliary heat supply pipeline 20 to perform heat exchange on the second main heat supply pipeline 22, so that the heat storage medium The heat of the water heated by the heating device is absorbed and stored, so that when the user needs it, the tap can be opened at any time, and the domestic cold water flowing in through the second inlet 9 can be directly stored with the heat stored in the heat storage medium in the heat storage heat exchanger 6. For heat exchange, there is no need to wait, the heating is more timely, and due to the stored heat of the heat storage medium, even if the user opens multiple faucets at the same time, it can still meet the demand, and is less affected by the user's water pressure and water flow, that is, when the user opens the faucet , can directly obtain hot water, and also prevent users from brushing teeth, washing hands and other small water needs, resulting in frequent opening of the unit, improving the user experience.

In order to improve the heat storage effect of the heat storage heat exchanger 6 , the wall-hung boiler in this embodiment further includes a heat preservation structure, which is arranged on the outer wall of the heat storage heat exchanger 6 . By arranging a thermal insulation structure on the outer wall of the heat storage heat exchanger 6, excessive heat dissipation to the outside is prevented. Specifically, the thermal insulation structure in this embodiment is an thermal insulation layer, such as thermal insulation foam, which is laid on the outer wall of the heat storage heat exchanger 6 . As an alternative embodiment, a heat insulating device may be provided outside the outer wall of the thermal storage heat exchanger 6 .

The heat storage medium in this embodiment is water. By setting the heat storage medium as water, it is convenient to obtain the heat storage medium while satisfying the heat storage effect. As an alternative embodiment, the heat storage medium may also be a sensible heat storage material or a phase-change heat storage material of other materials, such as molten salts, paraffins, ester acids, and the like.

The heating device in this embodiment includes a burner 3 and a main heat exchanger 2 , and the high-temperature flue gas generated by the burner 3 heats the first main heat supply pipeline 21 in the main heat exchanger 2 . As an alternative embodiment, it is also possible that the heating device does not use the burner 3 for heating, but uses other heating devices to realize the heating function, such as electric heating.

The wall-hung boiler in this embodiment also includes an auxiliary branch 1, one end of which is connected to the first main heating pipeline 21 between the flow distributor 5 and the first outlet 18, and the other end is connected to the auxiliary heating pipeline 20 located at the first outlet 18. The pipeline between the heat storage heat exchanger 6 and the first inlet 19 . By setting the auxiliary branch 1, in the process of supplying heating and domestic water to the wall-hung boiler at the same time, if the heat stored in the heat storage heat exchanger 6 still remains after the domestic water is supplied, it can be supplied to the heating water through the auxiliary branch 1. Improve energy utilization.

The wall-hung boiler in this embodiment further includes: a first valve 13 , which is arranged on the auxiliary branch 1 ; a second valve 14 , which is arranged on the auxiliary heating pipeline 20 between the heat storage heat exchanger 6 and the first inlet 19 on the pipeline. By setting the first valve 13 and the second valve 14, in the process of simultaneously supplying heating and domestic water, the wall-hung boiler can conveniently control the parallel or series operation of heating and domestic water, and utilize energy rationally.

In order to facilitate automatic control, the wall-hung boiler in this embodiment further includes a controller, which is connected to the first valve 13 and the second valve 14 for controlling the opening and closing of the first valve 13 and the second valve 14 . By setting the controller to be connected with the first valve 13 and the second valve 14, the opening and closing of the first valve 13 and the second valve 14 can be automatically controlled, thereby realizing the fully automatic control of the wall-hung boiler. As an alternative embodiment, without a controller, the first valve 13 and the second valve 14 can be manually opened and closed to perform parallel or series switching between heating and domestic water.

In this embodiment, the auxiliary heat supply pipeline 20 is provided with a first temperature detection device 12 on the pipeline between the heat storage heat exchanger 6 and the first inlet 19, and the first temperature detection device 12 is connected to the controller; When the detected temperature of a temperature detection device 12 is greater than the preset heating temperature and the difference between the two is greater than 5°C, the controller controls the first valve 13 to open and the second valve 14 to close. By setting the first temperature detection device 12, when the detected temperature of the first temperature detection device 12 is greater than the preset heating temperature and the difference between the two is greater than 5°C, the controller controls the first valve 13 to open and the second valve 14 to close , so that the pipelines of heating water and domestic water run in series, that is, the stored heat of the heat storage heat exchanger 6 can be used to supply heating water on the basis of satisfying domestic water, ensuring full utilization of energy.

In the wall-hung boiler in this embodiment, when the domestic water meets the preset temperature, or the temperature detected by the first temperature detection device 12 is less than or equal to the preset heating temperature, and the difference between the two is less than 5°C, the controller controls the first temperature. The valve 13 is closed and the second valve 14 is opened. Since the domestic water satisfies the preset temperature requirement, there is no need to supply heat to the domestic water; or when the temperature detected by the first temperature detection device 12 is less than or equal to the heating temperature, and the difference between the two is less than 5°C, the storage The stored heat of the heat exchanger 6 can only supply domestic water, and there is no excess energy to supply heating water. The controller controls the first valve 13 to close, the second valve 14 to open, and the heating water and domestic water to operate in parallel mode to ensure that the wall hanging normal operation of the furnace.

In order to ensure the water pressure balance of each pipeline of the wall-hung boiler, the wall-hung boiler in this embodiment also includes a water pressure balance pipeline, which is connected to the first main heat supply pipeline 21, and an expansion tank 17 is arranged on the water pressure balance pipeline.

In order to ensure the water circulation of each pipeline of the wall-hung boiler, the wall-hung boiler in this embodiment further includes a water pump 15 , which is arranged on the first main heating pipeline 21 .

In order to facilitate temperature control, the wall-hung boiler in this embodiment further includes a second temperature detection device 4, a third temperature detection device 10 and a fourth temperature detection device 7, a second temperature detection device 4, a third temperature detection device 10 and a The four temperature detection devices 7 are all electrically connected to the controller. The second temperature detection device 4 is arranged on the first main heat supply pipeline 21, between the main heat exchanger 2 and the flow distributor 5, and the third temperature detection device 10 is arranged on the first main heat supply pipeline 21, Located between the flow distributor 5 and the first outlet 18 , the fourth temperature detection device 7 is provided in the heat storage heat exchanger 6 . Specifically, the first temperature detection device 12 , the second temperature detection device 4 , the third temperature detection device 10 and the fourth temperature detection device 7 in this embodiment are all temperature sensing packages. As an alternative embodiment, the first temperature detection device 12, the second temperature detection device 4, the third temperature detection device 10 and the fourth temperature detection device 7 may be other devices capable of detecting temperature, such as a temperature sensor, Or any combination of temperature sensor and temperature sensor.

The controller in this embodiment is connected to the flow distributor 5 to control the opening of each port of the flow distributor 5. During operation, the wall-hung boiler can realize the mode of supplying heating water separately, supplying domestic water separately and simultaneously supplying heating water. and domestic water patterns, as follows:

1) Separate heating water supply mode: As shown in Figure 2, when the wall-hung boiler is operated in winter, if the user has no demand for domestic hot water, the controller controls the flow distributor 5 and the auxiliary port of the heat storage heat exchanger 6. The opening degree is 0, and the opening degree of the port communicating with the first outlet 18 of the flow distributor 5 is the largest. The flow distributor 5 controls all the hot water heated by the burner 3 to be supplied to the heating pipeline 11, and the controller controls the first valve. 13 and the second valve 14 are both in the closed state, the water in the wall-hung boiler circulates in the direction indicated by the arrow in Figure 2, and all the hot water heated by the burner 3 flows to the heating pipeline 11 (such as floor heating or heat dissipation) installed in the room. sheet) for heat radiation to realize the mode of supplying heating water separately.

2) The mode of supplying domestic water alone: As shown in Figure 3, when the wall-hung boiler is operated in summer, since the user has no heating demand, the controller controls the opening of the port communicating between the flow distributor 5 and the first outlet 18 to be 0, and the flow rate is 0. The opening of the auxiliary port of the distributor 5 that communicates with the heat storage heat exchanger 6 is the largest, the flow distributor 5 controls all the hot water heated by the burner 3 to be supplied to the heat storage heat exchanger 6, and the controller controls the first valve 13 is closed, the second valve 14 is opened, and the water in the wall-hung boiler circulates in the direction indicated by the arrow in FIG. The coil heat transfer heats the heat storage medium in the heat storage heat exchanger 6, thereby realizing the heating of domestic water and realizing the mode of supplying domestic water alone, which can keep the user's set water temperature constant, and the user can use it immediately, avoiding the need for The problem of frequent opening of the wall-hung boiler caused by the user's small water demand such as brushing teeth and washing hands.

3) Simultaneous supply of heating water and domestic water mode: when the wall-hung boiler is operated in winter, when the user has both domestic hot water demand and heating hot water demand, the flow distributor 5 is connected with the heat storage heat exchanger 6. The ports and the ports communicating with the flow distributor 5 and the first outlet 18 have opening degrees, and the flow distributor 5 controls the hot water heated by the burner 3 to be supplied to the heating pipeline 11 and the domestic water pipeline running in parallel, such as As shown in FIG. 4 , the controller controls the first valve 13 to close, the second valve 14 to open, and the water in the wall-hung boiler circulates in the direction indicated by the arrow in FIG.

Specifically, in order to improve the user's comfort, the controller controls the flow distributor 5 to give priority to meeting the demand for domestic water, and at the same time, to meet the demand for heating water to the maximum extent. When the user uses hot water in the bathroom for a long time, the water temperature in the heat storage heat exchanger 6 will drop, and there will be a difference between the user's set temperature value and the actual temperature of the fourth temperature detection device 7, and the controller controls to increase the pump 15 The flow rate of the burner 3 and the opening of the proportional valve 16 of the burner 3 increase the temperature at the second temperature detection device 4, and control the flow distributor 5 to increase the hot water flow to the heat storage heat exchanger 6. When the fourth When the actual temperature detected by the temperature detection device 7 is lower than the user's set temperature, continue to increase the flow rate of hot water from the flow distributor 5 to the heat storage heat exchanger 6 until the temperature detected by the fourth temperature detection device 7 matches the user's temperature. Then it is determined whether the actual temperature detected by the third temperature detection device 10 is lower than the heating temperature set by the user, and when the actual temperature detected by the third temperature detection device 10 is lower than the heating temperature set by the user, control The controller controls the flow distributor 5 to increase the flow of hot water to the heating pipeline 11 until the actual temperature detected by the third temperature detection device 10 is equal to the heating temperature set by the user.

When the wall-hung boiler supplies heating water and domestic water at the same time, the two flow paths can also be operated in series. As shown in Figure 5, the controller controls the opening of the port connecting the flow distributor 5 with the first outlet 18 to be 0 , the opening degree of the auxiliary port communicating with the flow distributor 5 and the heat storage heat exchanger 6 is the largest, the flow distributor 5 controls all the hot water heated by the burner 3 to be supplied to the heat storage heat exchanger 6, and the controller controls The first valve 13 is opened, the second valve 14 is closed, the water in the wall-hung boiler circulates in the direction indicated by the arrow in FIG. 5 , and the hot water heated by the burner 3 first exchanges heat with the heat storage medium in the heat storage heat exchanger 6 The remaining heat is then used for the heating pipeline 11 . The operating condition of the wall-hung boilers in series is that the water temperature of the auxiliary heating pipeline 20 after heat exchange by the heat storage heat exchanger 6 is still greater than the preset heating temperature, and the difference between the two is greater than 5 ℃, the heat storage is guaranteed. The residual heat after the heat exchange of the heat exchanger 6 can be effectively used for heating. The operation mode is that the hot water for the bathroom is mainly used, and the heating is supplemented, which is beneficial to the full utilization of heat. When the domestic water meets the preset temperature, or the detected temperature of the first temperature detection device 12 is less than or equal to the preset heating temperature, and the difference between the two is less than 5°C, the wall-hung boiler automatically switches to the parallel connection shown in FIG. 4 . Operation mode.

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 (10)

1. A wall hanging stove, comprising:

a first primary heating line (21) having a first inlet (19) and a first outlet (18);

a second primary heating line (22) having a second inlet (9) and a second outlet (8);

a heating device for heating the first main heat supply pipeline (21);

a flow distributor (5) arranged on the first primary heating line (21) between the heating device and the first outlet (18);

an auxiliary heat supply pipeline (20) with one end communicated with the auxiliary port of the flow distributor (5) and the other end communicated with the first inlet (19);

and the heat storage heat exchanger (6) is arranged on the auxiliary heat supply pipeline (20), the heat storage heat exchanger (6) comprises a heat storage medium, and the heat storage medium absorbs the heat of the auxiliary heat supply pipeline (20) and exchanges heat with the second main heat supply pipeline (22).

2. The wall hanging stove according to claim 1, characterized by further comprising a heat insulating structure provided on an outer wall of the heat storage heat exchanger (6).

3. The wall hanging stove according to claim 1, wherein the heat storage medium is water.

4. The wall hanging stove according to claim 1, characterized in that the heating device comprises a burner (3) and a main heat exchanger (2), and the high temperature flue gas generated by the burner (3) heats the pipeline of the first main heat supply pipeline (21) arranged in the main heat exchanger (2).

5. Wall hanging stove according to any one of claims 1-4, further comprising an auxiliary branch (1) connected at one end to the first primary heating line (21) between the flow distributor (5) and the first outlet (18) and at the other end to the auxiliary heating line (20) between the heat storage heat exchanger (6) and the first inlet (19).

6. The wall hanging stove of claim 5, further comprising:

the first valve (13) is arranged on the auxiliary branch (1);

a second valve (14) arranged on the auxiliary heat supply line (20) in a line between the heat storage heat exchanger (6) and the first inlet (19).

7. The wall hanging stove according to claim 6, further comprising a controller connected to the first and second valves (13, 14) for controlling the opening and closing of the first and second valves (13, 14).

8. The wall hanging stove according to claim 7, characterized in that the auxiliary heat supply pipeline (20) is provided with a first temperature detection device (12) on the pipeline between the heat storage heat exchanger (6) and the first inlet (19), the first temperature detection device (12) being connected with the controller;

when the detection temperature of the first temperature detection device (12) is higher than the preset heating temperature and the difference between the detection temperature and the preset heating temperature is higher than 5 ℃, the controller controls the first valve (13) to be opened and the second valve (14) to be closed.

9. The hanging stove according to claim 8, characterized in that the controller controls the first valve (13) to close and the second valve (14) to open when domestic water meets a preset temperature or the temperature detected by the first temperature detecting device (12) is less than or equal to a preset heating temperature and the difference between the two is less than 5 ℃.

10. The wall hanging stove according to any one of claims 1 to 4, characterized by further comprising a water pressure balance pipeline connected with the first main heating pipeline (21), wherein an expansion tank (17) is arranged on the water pressure balance pipeline.

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