CN211204401U - Wall-mounted stove - Google Patents

Abstract

The utility model relates to the technical field of electrical appliances, in particular to a wall-hung boiler. The wall-hung boiler is communicated with the heating water outlet pipeline by adding a second burner, a second heat exchanger, and a first three-way reversing valve arranged on the heating water outlet pipeline, and is arranged on the domestic water outlet. The domestic water heating circuit in which the second three-way reversing valve of the heating circuit is communicated with the third heat exchanger, and further, in the case that heating and domestic water can be used at the same time, when domestic water is not used, domestic water is used for heating The loop heats the heating system, increasing the efficiency of the boiler.

Description

fireplace

technical field

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

Background technique

At present, most of the wall-hung boilers are dual-purpose furnaces, which have heating functions and domestic water functions. Based on the actual needs of use, the current wall-hung boilers mostly adopt the principle of giving priority to domestic water when in use. When using the hot water function, the heating function will be stopped at the same time.

However, when the above-mentioned wall-hung boiler is used, when people need both heating and hot water, especially when domestic water is used for a long time in winter, the water temperature in the heating pipeline will be lowered, and the indoor temperature will drop significantly. , the user experience is not good. In this regard, a wall-hung boiler disconnects the heating and domestic water systems, so that heating and domestic water can be achieved at the same time to avoid mutual influence, but when domestic water is not used, the domestic water system is idle, resulting in unnecessary energy loss.

Utility model content

The main purpose of the utility model is to provide a wall-hung boiler, so as to solve the problem that the wall-hung boiler in the prior art cannot satisfy both hot water supply and heating, and the working efficiency is low.

In order to achieve the above purpose, the utility model provides a wall-hung boiler, including a heating water inlet pipeline, a heating water outlet pipeline, a domestic water inlet pipeline, a domestic water outlet pipeline and a domestic water heating circuit, and the wall-hung boiler also includes:

a first heat exchanger and a first burner for supplying heat to the first heat exchanger, the first heat exchanger being communicated with the heating water inlet pipeline and the heating water outlet pipeline respectively;

a second heat exchanger and a second burner for supplying heat to the second heat exchanger, the second heat exchanger being in communication with the domestic water heating circuit;

A third heat exchanger, the third heat exchanger includes a first heat exchange channel communicated with the domestic water heating circuit, and a second heat exchange channel communicated with the domestic water inlet pipeline and the domestic water outlet pipeline a heat exchange channel, the third heat exchanger is used for heat exchange between the first heat exchange channel and the second heat exchange channel;

Wherein, the domestic water heating circuit is communicated with the heating water outlet pipeline through a first three-way reversing valve arranged on the heating water outlet pipeline, and a second three-way reversing valve arranged on the domestic water heating circuit A valve is in communication with the third heat exchanger.

Further, the first heat exchanger is a first heater matched with the first burner; the second heat exchanger is a second heater matched with the second burner.

Further, the third heat exchanger is a plate heat exchanger.

Further, the wall-hung boiler also includes:

A first segment valve is provided upstream of the first burner, and the segment valve is used for segment combustion of the first burner.

Further, the wall-hung boiler further comprises: a second segment valve arranged upstream of the second burner, and the segment valve can be used for segment combustion of the second burner.

Further, the wall-hung boiler further includes: a gas proportional valve arranged upstream of the first segment valve and the second segment valve, for controlling the entry into the first segment valve and the second segment valve. gas volume of the segment valve.

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

In the wall-hung boiler provided by the utility model, a second burner and a second heat exchanger are added in the wall-hung boiler, and a first three-way reversing valve arranged on the heating water outlet pipeline is connected with the heating water outlet pipeline. communication, and the domestic water heating circuit in which the second three-way reversing valve provided in the domestic water heating circuit is communicated with the third heat exchanger, so that when heating and domestic water can be used at the same time, the domestic water heating circuit is not used In the case of using water, the heating system is heated through the domestic water heating circuit, which improves the efficiency 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. In the attached image:

FIG. 1 is a schematic front view of the structure of a wall-hung boiler in an embodiment of the present invention, wherein the wall-hung boiler is in a single-heating, high-power mode.

FIG. 2 is a schematic front view of the structure of the wall-hung boiler shown in FIG. 1 , wherein the wall-hung boiler is in a single heating, higher power mode.

FIG. 3 is a schematic front view of the structure of the wall-hung boiler shown in FIG. 1 , wherein the wall-hung boiler is in a single heating and medium power mode.

FIG. 4 is a schematic front view of the structure of the wall-hung boiler shown in FIG. 1 , wherein the wall-hung boiler is in a single-heating, low-power mode.

FIG. 5 is a schematic front view of the structure of the wall-hung boiler shown in FIG. 1 , wherein the wall-hung boiler is in a single domestic water and high power mode.

FIG. 6 is a schematic front view of the structure of the wall-hung boiler shown in FIG. 1 , wherein the wall-hung boiler is in a shared mode for heating and domestic water.

Wherein, the reference signs in the above drawings are:

1. Smoke collecting hood; 3. Air pressure switch; 6. First heat exchanger; 9. First burner; 12. First three-way reversing valve; 14. Gas proportional valve; 15. Heating water inlet pipeline; 16. First segment valve; 19. Heating water outlet pipeline; 22. Second segment valve; 23. Domestic water inlet pipeline; 24. Plate heat exchanger; 25. Domestic water outlet pipeline; 28. Second Three-way reversing valve; 30, the second burner; 34, the second heat exchanger.

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.

As shown in FIGS. 1 to 6 , the wall-hung boiler according to the present implementation includes a heating water inlet pipeline 15 , a heating water outlet pipeline 19 , a domestic water inlet pipeline 23 , a domestic water outlet pipeline 25 and a domestic water heating circuit. The fireplace also includes:

The first heat exchanger 6 and the first burner 9 for supplying heat to the first heat exchanger 6, the first heat exchanger 6 is respectively connected with the heating water inlet pipeline 15 and the heating water outlet pipeline 19 connected;

a second heat exchanger 34 and a second burner 30 for supplying heat to the second heat exchanger 34, the second heat exchanger 34 being in communication with the domestic water heating circuit;

A third heat exchanger, the third heat exchanger includes a first heat exchange channel that communicates with the domestic water heating circuit, and a first heat exchange channel that communicates with the domestic water inlet pipeline 23 and the domestic water outlet pipeline 25 a second heat exchange channel, and the third heat exchanger provides heat exchange between the first heat exchange channel and the second heat exchange channel;

Wherein, the domestic water heating circuit communicates with the heating water outlet pipeline 19 through the first three-way reversing valve 12 arranged on the heating water outlet pipeline 19, and the second water heating circuit is arranged on the domestic water heating circuit. The three-way reversing valve 28 communicates with the third heat exchanger.

Furthermore, using the wall-hung boiler in this embodiment, the second burner 30, the second heat exchanger 34 and the first three-way reversing valve 12 arranged on the heating water outlet pipeline 19 are connected to the wall-hung boiler. The heating water outlet pipeline 19 is connected, and the second three-way reversing valve 28 arranged in the domestic water heating circuit is connected with the domestic water heating circuit of the third heat exchanger, so that the heating and domestic water can be heated at the same time. Under the circumstance of not using domestic water, the heating system is heated through the domestic water heating circuit, which improves the efficiency of the wall-hung boiler.

Specifically, the first heat exchanger 6 in this embodiment is a first heater matched with the first burner 9 ; the second heat exchanger 34 is a second heater matched with the second burner 30 .

Specifically, the third heat exchanger is the plate heat exchanger 24 .

Preferably, the wall-hung boiler in this embodiment further comprises: a first segment valve 16 arranged upstream of the first burner 9 , and the segment valve can be used for segment combustion of the first burner 9 . The wall-hung boiler further includes: a second segment valve 22 arranged upstream of the second burner 30 , and the segment valve can be used for segment combustion of the second burner 30 . In turn, the power adjustment ratio of the wall-hung boiler can be expanded, and the user experience can be further improved.

Preferably, the wall-hung boiler in this embodiment further comprises: a gas proportional valve 14 arranged upstream of the first segment valve 16 and the second segment valve 22, for controlling the entry into the first segment valve 14 The gas volume of the segment valve 16 and the second segment valve 22 further improves the adjustable ratio of the power of the wall-hung boiler.

Further referring to FIGS. 1 to 5 , the wall-hung boiler in this embodiment includes two fans, and the two fans may share a fume collecting hood 1 , or a fume collecting hood 1 may be used alone. The gas proportional valve 14 controls the opening and closing of the gas and the size of the gas flow. An ignition needle and an ignition needle are installed above the burner fire row in each combustion system for ignition and detection of whether the ignition is successful. The water pump provides the power for the water circulation, and the fan provides the air required for combustion and removes the flue gas after combustion. The air pressure switch 3 is used to detect whether the flue gas channel is normal. The heating outlet water temperature sensor is used to detect the heating outlet water temperature, and the three-way motor is used to switch the domestic water and heating water. The plate heat exchanger 24 is used to heat domestic water. The domestic water temperature sensor is used to detect the temperature of the hot water.

The working process of the wall-hung boiler in this embodiment has been described below with reference to the accompanying drawings:

As shown in Figure 1, in the case of the single heating mode of the wall-hung boiler and the high power operation: when the controller main board receives a large operating load of the unit, the fan starts first, and when the air pressure switch 3 detects that the fan airflow is in the venturi tube The pressure difference signal generated on the upper part is fed back to the main board of the controller, and then the pulse ignition device is ignited, and the gas proportional valve 14 is opened to deliver gas to the first segment valve 16 and the second segment valve 22 . Then the solenoid valves of the segment valves are fully opened to deliver gas to the two segment burners, and the first burner 9 and the second burner 30 start to burn. The heating water enters the first water pump from the heating return port, passes through the first heat exchanger 6 for heat exchange, and then passes through the first three-way reversing valve 12 and enters the second heat exchanger 34 through the second water pump for the second heat exchange , and then pass through the second three-way reversing valve 28 to the heating water outlet and flow to the heating end to complete this heating cycle.

As shown in Figure 2, in the single heating mode of the wall-hung boiler, when running at a higher power, when the controller main board receives a large operating load of the unit, the fan starts first, and when the air pressure switch 3 detects that the air flow of the fan is in the venturi tube The pressure difference signal generated on the upper part is fed back to the main board of the controller, and then the pulse ignition device is ignited, and the gas proportional valve 14 is opened to deliver gas to the first segment valve 16 and the second segment valve 22 . Then, all the solenoid valves of the segment valves except the second segment valve 22 are opened to deliver gas to the two segment burners, and the right part of the first burner 9 and the second burner 30 starts to burn. The heating water enters the first water pump from the heating return port, passes through the first heat exchanger 6 for heat exchange, and then passes through the first three-way reversing valve 12 and enters the second heat exchanger 34 through the second water pump for the second heat exchange , and then pass through the second three-way reversing valve 28 to the heating water outlet and flow to the heating end to complete this heating cycle.

As shown in Figure 3, in the single heating mode of the wall-hung boiler, when running at medium power, when the main board of the controller receives a small operating load of the unit, the fan starts first, and when the air pressure switch 3 detects that the fan airflow is generated on the venturi tube The pressure difference signal is fed back to the controller main board, and then the pulse ignition device is ignited, and the gas proportional valve 14 is opened to deliver gas to the first segment valve 16. Then the solenoid valve of the first segment valve 16 is opened to deliver gas to the first burner 9, and the first burner 9 starts to burn. The heating water enters the first water pump from the heating water return port, conducts heat exchange through the first heat exchanger 6, and then passes through the first three-way reversing valve 12 to the heating water outlet and flows to the heating end to complete the heating cycle.

As shown in Figure 4, in the single heating mode of the wall-hung boiler, when running at low power, when the main board of the controller receives a small operating load of the unit, the fan starts first, and when the air pressure switch 3 detects that the fan airflow is generated on the venturi tube The pressure difference signal is fed back to the controller main board, and then the pulse ignition device is ignited, and the gas proportional valve 14 is opened to deliver gas to the first segment valve 16. Then the first segment valve 16 is opened to deliver gas to the right side of the first burner 9, and the right side of the first burner 9 starts to burn. The heating water enters the first water pump from the heating water return port, conducts heat exchange through the first heat exchanger 6, and then passes through the first three-way reversing valve 12 to the heating water outlet and flows to the heating end to complete the heating cycle.

As shown in Figure 5, in the single domestic water mode of the wall-hung boiler, when running at high power: when the main board of the controller receives the domestic water demand fed back by the water flow sensor and the operating load of the unit is large, the fan starts first, and when the air pressure switch 3 The differential pressure signal generated by the fan airflow on the Venturi tube is detected, and the signal is fed back to the controller main board. Next, the pulse ignition device is ignited, and the gas proportional valve 14 is opened to deliver gas to the second segment valve 22. Then, the second segment valve 22 is opened to deliver gas to the second burner 30, and the second burner 30 side starts to burn. The heating water starts to enter the second heat exchanger 34 from the second water pump for heat exchange, and then enters the plate heat exchanger 24 through the second three-way reversing valve 28, passes through the plate heat exchanger 24 and exchanges heat with domestic water, and returns to The second water pump circulates. The domestic water enters from the domestic water inlet, and after heat exchange through the plate heat exchanger 24, reaches the set temperature, and exits from the domestic water outlet to reach the end of the domestic water; when the demand for domestic water power is small, only the second segment valve is opened. twenty two.

As shown in Figure 6, in the mode of simultaneous use of wall-hung boiler heating and domestic water, when the controller main board receives that the unit needs to be used for heating and domestic water at the same time, the fan starts first, and when the air pressure switch 3 detects that the air flow of the fan is in the venturi The pressure difference signal generated on the inner pipe is fed back to the controller main board, and then the pulse ignition device is ignited, and the gas proportional valve 14 is opened to deliver gas to the first segment valve 16 and the second segment valve 22. Then, the solenoid valves of the segment valves are fully opened to deliver gas to the two segment burners, and the first burner 9 and the second burner 30 start to burn. At this time, the first three-way reversing valve 12 is closed. The heating water starts to enter the second heat exchanger 34 from the second water pump for heat exchange, and then enters the plate heat exchanger 24 through the second three-way reversing valve 28, passes through the plate heat exchanger 24 and exchanges heat with domestic water, and returns to The second water pump circulates. The domestic water enters from the domestic water inlet, and after heat exchange through the plate heat exchanger 24, reaches the set temperature, and exits from the domestic water outlet to reach the end of the domestic water; the heating return water enters the first water pump and passes through the first heat exchanger 6. After heat exchange, it passes through the first three-way reversing valve 12 to the heating water outlet and flows to the heating end. The heating mode and the domestic water mode can be turned on at the same time.

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 (6)

1. The utility model provides a hanging stove, its characterized in that, includes heating water inlet pipe way (15), heating outlet pipe way (19), domestic water inlet pipe way (23), domestic water outlet pipe way (25) and domestic water heating return circuit, hanging stove still includes:

a first heat exchanger (6) and a first burner (9) supplying heat to the first heat exchanger (6), wherein the first heat exchanger (6) is respectively communicated with the heating water inlet pipeline (15) and the heating water outlet pipeline (19);

a second heat exchanger (34) and a second combustor (30) providing heat to the second heat exchanger (34), the second heat exchanger (34) being in communication with the domestic water heating circuit;

the third heat exchanger comprises a first heat exchange channel communicated with the domestic water heating loop and a second heat exchange channel communicated with the domestic water inlet pipeline (23) and the domestic water outlet pipeline (25), and the third heat exchanger is used for exchanging heat between the first heat exchange channel and the second heat exchange channel;

the domestic water heating loop is communicated with the heating water outlet pipeline (19) through a first three-way reversing valve (12) arranged on the heating water outlet pipeline (19), and a second three-way reversing valve (28) arranged on the domestic water heating loop is communicated with the third heat exchanger.

2. The wall hanging stove according to claim 1, characterized in that the first heat exchanger (6) is a first heater cooperating with the first burner (9); the second heat exchanger (34) is a second heater cooperating with the second burner (30).

3. Wall hanging stove according to claim 1, characterised in that the third heat exchanger is a plate heat exchanger (24).

4. The wall hanging stove according to any one of claims 1 to 3, further comprising:

a first segment valve (16) arranged upstream of the first burner (9) and which can be used for the staged combustion of the first burner (9).

5. The wall hanging stove according to claim 4, further comprising: a second segment valve (22) arranged upstream of the second burner (30) and adapted to be combusted in segments by the second burner (30).

6. The wall hanging stove according to claim 5, further comprising: a gas proportional valve (14) disposed upstream of the first and second section valves (16, 22) for controlling the amount of gas entering the first and second section valves (16, 22).

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