A wall-mounted furnace

Abstract

The present invention provides a wall-mounted boiler, wherein the burner includes a first heating unit and a second heating unit. When heating and domestic hot water need to be prepared simultaneously, the high-temperature water flowing out of the first heating unit flows into the heat exchanger to heat the cold water flowing into the domestic hot water inlet of the heat exchanger, and the hot water then flows out through the domestic hot water outlet. The low-temperature water generated after heat exchange in the heat exchanger returns to the second heating unit, is further heated in the second heating unit, and the high-temperature water generated after heating by the second heating unit enters the heater device through the heating outlet to perform heating operation indoors. Through the combination of the first heating unit and the second heating unit, the two functions of heating and domestic hot water can be performed simultaneously.

Description

Technical Field

[0001] The present invention relates to the technical field of wall-mounted boilers, and in particular to a wall-mounted boiler capable of providing heating and domestic hot water simultaneously. Background Art

[0002] Wall-mounted boilers are essential household appliances in daily life. They offer both heating and hot water functions. In heating mode, they heat the room; in hot water mode, they heat tap water for convenient use in the kitchen or bathroom. Most existing wall-mounted boilers prioritize hot water use, meaning heating is disabled when hot water is in use. When both heating and hot water are required, especially during cold winter months, prolonged use of hot water can cause the room temperature to drop rapidly, reducing user comfort. Summary of the Invention

[0003] To this end, the present invention provides a wall-mounted boiler, comprising: a burner, on which a first heating unit and a second heating unit are independently arranged, the first heating unit is provided with a first water inlet and a first water outlet, and the second heating unit is provided with a second water inlet and a second water outlet; a heating unit, on which a heating return water inlet and a heating water outlet are provided, the heating return water inlet is connected to the first heating unit, and the heating water outlet is connected to the second heating unit; a heat exchanger, on which a domestic hot water inlet and a domestic hot water outlet are connected, the hot water flowing out of the first heating unit enters the heat exchanger, and flows back to the second heating unit after completing heat exchange in the heat exchanger.

[0004] The first water outlet of the first heating unit is provided with a first pipe, the first pipe is provided with a first three-way valve, one end of the first three-way valve is connected to the heat exchanger, and the other end is connected to the second water inlet.

[0005] A second pipe is connected between the second water outlet and the heating water outlet, a second three-way valve is provided on the second pipe, a third pipe is provided between the second three-way valve and the heat exchanger, and the third pipe is connected to the first three-way valve.

[0006] A fifth pipe is provided between the heat exchanger and the second water inlet, a third three-way valve is provided on the fifth pipe, and a sixth pipe is connected between the heating return water port and the third three-way valve.

[0007] A fourth pipe is provided between the first water inlet and the heating return water inlet, and one end of the sixth pipe is connected to the fourth pipe.

[0008] A temperature limiter is provided on the second tube.

[0009] The fourth pipe is provided with a water pump, and along the flow direction of the water flow, the water pump is arranged at the rear end of the connection portion between the fourth pipe and the sixth pipe.

[0010] The domestic hot water outlet is provided with a domestic hot water outlet pipe, and the domestic hot water outlet pipe is provided with a temperature sensing package.

[0011] The technical solution of the present invention has the following advantages:

[0012] 1. The wall-mounted boiler provided by the present invention includes: a burner, on which a first heating unit and a second heating unit are independently arranged, the first heating unit is provided with a first water inlet and a first water outlet, and the second heating unit is provided with a second water inlet and a second water outlet; a heating unit, on which a heating return water inlet and a heating water outlet are provided, the heating return water inlet is connected to the first heating unit, and the heating water outlet is connected to the second heating unit; a heat exchanger, on which a domestic hot water inlet and a domestic hot water outlet are connected, and the hot water flowing out of the first heating unit enters the heat exchanger and flows back to the second heating unit after completing heat exchange in the heat exchanger.

[0013] In the present invention, the burner includes a first heating unit and a second heating unit. When heating and preparing domestic hot water are required simultaneously, the high-temperature water flowing out of the first heating unit flows into the heat exchanger, heating the cold water flowing into the domestic hot water inlet of the heat exchanger. The hot water then flows out through the domestic hot water outlet. The low-temperature water produced after heat exchange in the heat exchanger returns to the second heating unit for further heating. The high-temperature water generated by the second heating unit enters the heater through the heating outlet to heat the room.

[0014] By combining the first heating unit and the second heating unit, both heating and domestic hot water functions can be performed simultaneously.

[0015] 2. In the wall-mounted boiler provided by the present invention, the first water outlet of the first heating unit is provided with a first pipe, the first pipe is provided with a first three-way valve, one end of the first three-way valve is connected to the heat exchanger, and the other end is connected to the second water inlet.

[0016] By providing the first pipe and the first three-way valve, hot water flowing out of the first water outlet can flow directly into the second heating unit through the second water inlet for reheating. The combination of the first pipe and the first three-way valve enables the wall-mounted boiler to achieve a separate heating function.

[0017] 3. The wall-mounted boiler provided by the present invention has a second pipe connected between the second water outlet and the heating water outlet, a second three-way valve is provided on the second pipe, a third pipe is provided between the second three-way valve and the heat exchanger, and the third pipe is connected to the first three-way valve.

[0018] The third pipe is connected to the first three-way valve, so that the water flowing out through the second pipe can flow into the heat exchanger through the third pipe, thereby heating the water in the heater. At this time, the wall-mounted boiler can realize a separate domestic hot water mode; at the same time, the hot water flowing out through the second three-way valve can also flow into the heating outlet. At this time, the wall-mounted boiler can realize a separate heating mode. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the specific embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0020] Figure 1 A schematic structural diagram of the main heater provided by the present invention;

[0021] Figure 2 This is a schematic diagram of the wall-mounted boiler provided by the present invention in simultaneous heating and domestic hot water mode;

[0022] Figure 3 This is a schematic diagram of the wall-mounted boiler provided by the present invention in a single heating mode;

[0023] Figure 4 Schematic diagram of the wall-mounted boiler provided by the present invention in a separate domestic hot water mode.

[0024] Description of reference numerals:

[0025] 1-First heating unit; 101-First water inlet; 102-First water outlet; 2-Second heating unit; 201-Second water inlet; 202-Second water outlet; 3-Heating return water inlet; 4-Heating outlet; 5-Heat exchanger; 501-Domestic hot water inlet; 502-Domestic hot water outlet; 6-First pipe; 7-First three-way valve; 8-Second pipe; 9-Second three-way valve; 10-Third pipe; 11-Fourth pipe; 12-Fifth pipe; 13-Third three-way valve; 14-Sixth pipe; 15-Thermostat; 16-Water pump; 17-Domestic hot water outlet pipe; 18-Thermal sensor; 19-Gas inlet. DETAILED DESCRIPTION

[0026] The technical solution of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the embodiments described are only some embodiments of the present invention, not all embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts shall fall within the scope of protection of the present invention.

[0027] In the description of the present invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings and are intended solely to facilitate and simplify the description of the present invention. They are not intended to indicate or imply that the devices or components referred to must have, be constructed, or operate in a specific orientation, and therefore should not be construed as limitations on the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0028] In the description of the present invention, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they may refer to fixed, detachable, or integral connections; mechanical or electrical connections; direct or indirect connections through an intermediate medium; and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on the specific circumstances.

[0029] 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 they do not conflict with each other.

[0030] Example

[0031] This embodiment provides a wall-mounted boiler, including: a burner, such as Figure 1 As shown, a first heating unit 1 and a second heating unit 2 are independently provided thereon. The first heating unit 1 is provided with a first water inlet 101 and a first water outlet 102, and the second heating unit 2 is provided with a second water inlet 201 and a second water outlet 202. Specifically, in this embodiment, the water in the first heating unit 1 and the second heating unit 2 is heated by gas, which flows into the burner through the gas inlet 19.

[0032] The heating unit is provided with a heating water return port 3 and a heating water outlet 4. A heating pipeline is connected between the heating water return port and the heating water outlet to heat the room.

[0033] In this embodiment, the burner adopts a burner commonly used in the prior art, such as Figure 1 and Figure 2As shown, the gas enters the combustion chamber through the gas inlet 19. An ignition needle and a fire detection needle are provided inside the combustion chamber. In this embodiment, the combustion chamber is not excessively limited.

[0034] The heating return water inlet 3 is connected to the first heating unit 1, and the heating water outlet 4 is connected to the second heating unit 2; the heat exchanger 5 is connected to the domestic hot water inlet 501 and the domestic hot water outlet 502. Tap water enters the heat exchanger 5 through the domestic hot water inlet 501, flows out through the domestic hot water outlet 502 after being heated, and then enters the kitchen, bathroom and other places where hot water is needed. In this embodiment, the hot water flowing out of the first heating unit 1 enters the heat exchanger 5, as shown in FIG. Figure 2 As shown, after the heat exchange in the heat exchanger 5 is completed, it flows back to the second heating unit 2 through the fifth pipe 12.

[0035] In this embodiment, since the burner includes the first heating unit 1 and the second heating unit 2, heating water and domestic hot water can be prepared simultaneously by using one set of burners.

[0036] In this embodiment, a first pipe 6 is provided at the first water outlet 102 of the first heating unit 1, and a first three-way valve 7 is provided on the first pipe 6. The hot water flowing out through the first pipe 6 can flow into the heat exchanger 5 or into the second water inlet 201 through the first three-way valve 7.

[0037] In this embodiment, a second pipe 8 is connected between the second water outlet 202 and the heating water outlet 4. A second three-way valve 9 is provided on the second pipe 8. A third pipe 10 is provided between the second three-way valve 9 and the heat exchanger 5. The third pipe 10 is connected to the first three-way valve 7. By providing the second three-way valve 9, the hot water flowing out of the second pipe 8 can flow into the heating water outlet 4 or directly into the third pipe 10, and then into the interior of the heat exchanger 5.

[0038] In this embodiment, Figure 2-4 As shown in any one of the figures, a fifth pipe 12 is provided between the heat exchanger 5 and the second water inlet 201. Hot water entering the heat exchanger 5 flows into the fifth pipe 12 after heat exchange. A third three-way valve 13 is provided on the fifth pipe 12. A sixth pipe 14 is connected between the heating return water port 3 and the third three-way valve 13. A fourth pipe 11 is provided between the first water inlet 101 and the heating return water port 3. One end of the sixth pipe 14 is connected to the fourth pipe 11.

[0039] A temperature limiter 15 is also installed on the second pipe 8. This prevents the hot water heated by the second heating unit from overheating. A water pump 16 is also installed on the fourth pipe 11, positioned at the rear end of the connection between the fourth pipe 11 and the sixth pipe 14, along the flow direction of the water. This ensures that water flowing in through the heating return port can flow steadily into the first heating unit.

[0040] In this embodiment, a domestic hot water outlet pipe 17 is provided on the domestic hot water outlet 502, and a temperature sensing package 18 is provided on the domestic hot water outlet pipe 17. By providing the domestic hot water outlet pipe 17, the hot water flowing out of the heat exchanger 5 is discharged to the outside.

[0041] The wall-mounted boiler provided in this embodiment can achieve three heating modes:

[0042] The first one is the single heating mode: Figure 3 As shown, Figure 3 The arrows in the middle give the direction of water flow:

[0043] In the separate heating mode, only the heating equipment such as floor heating is heated. First, the burner is controlled to start and the first heating unit and the second heating unit are heated. The low-temperature water in the heating equipment first enters the fourth pipe through the heating return port. The fourth pipe 11 is connected to the first water inlet 101 of the first heating unit, and the water is first heated inside the first heating unit. After the initial heating is completed, the water flows out through the first water outlet 102 and enters the first three-way valve 7, and then flows into the second water inlet 201 of the second heating unit 2 for secondary heating. After the secondary heating is completed, the water flows out through the second water outlet 202 and enters the second pipe 8. At this time, the second three-way valve 9 is controlled to be directly connected to the heating outlet 4, so that the water heated twice flows into the heating equipment.

[0044] The second type is the separate domestic hot water mode: Figure 4 As shown, Figure 4 The arrows in the middle give the direction of water flow:

[0045] In the separate domestic hot water mode, water does not enter the heating equipment. The water pump 16 is started, and the circulating water flows out of the heat exchanger 5 and into the third three-way valve 13, and then enters the fourth pipe 11 in the direction indicated by the arrow in the figure. The water in the fourth pipe 11 first flows into the first heating unit for preliminary heating, and then flows out of the first water outlet 102 and enters the first three-way valve 7. The water flowing out of the first three-way valve 7 flows again into the second water inlet 201 of the second heating unit 2, and is heated again inside the second heating unit 2. After being heated again, the water flows out through the second water outlet 202 and enters the second pipe 8. The water flows into the second three-way valve 9, and then flows into the third pipe 10 under the diversion of the second three-way valve 9, and flows back to the inside of the heat exchanger 5 through the third pipe 10.

[0046] The heat exchanger 5 is connected to a domestic hot water inlet 501 and a domestic hot water outlet 502. The water heated by the first heating unit and the second heating unit exchanges heat with the domestic hot water inside the heat exchanger 5, thereby ensuring the water temperature of the domestic hot water.

[0047] The third mode is heating and domestic hot water mode. Figure 2 As shown, Figure 4 The arrows in the middle give the direction of water flow:

[0048] When water pump 16 is started, the heating water inside the heating equipment flows through the heating return port 3 into the fourth pipe 11, then enters the first heating unit through the first water inlet 101 for heating. The water heated by the first heating unit 1 flows through the first water outlet 102 and then into the first three-way valve 7. By controlling the first three-way valve 7, the water flowing out of the first three-way valve 7 flows into the third pipe 10, and then into the heat exchanger 5 for heat exchange. The heat exchanger 5 is connected to a domestic hot water inlet 501 and a domestic hot water outlet 502. The hot water flowing out of the first heating unit heats the water flowing into the heat exchanger 5 through the domestic hot water inlet 501, thereby producing domestic hot water.

[0049] At the same time, the water flowing out of the heat exchanger 5 flows into the third three-way valve 13, and then flows into the second heating unit 2 through the second water inlet 201 for reheating. The reheated water flows out through the second water outlet 202 and flows into the second pipe 8. After the water flows to the second three-way valve 9, the third three-way valve 13 is controlled so that the water flows directly to the heating water outlet, thereby realizing the preparation of heating water.

[0050] In this embodiment, domestic hot water and heating water can be prepared simultaneously by controlling the first three-way valve, the second three-way valve, the third three-way valve, the first heating unit and the second heating unit.

[0051] Specifically, the first three-way valve, the second three-way valve and the third three-way valve are all solenoid valves, and the control of different flow directions of the three-way valves can be achieved through simple control logic. In this embodiment, too many restrictions are placed on the three-way valves.

[0052] Obviously, the above embodiments are merely examples for clarity of explanation and are not intended to limit the implementation methods. Those skilled in the art will readily appreciate that other variations or modifications based on the above descriptions are possible. It is not necessary and impossible to enumerate all implementation methods here. Obvious variations or modifications arising therefrom remain within the scope of protection of the present invention.

Claims

1. A wall-mounted boiler, characterized in that: include: A burner, on which a first heating unit (1) and a second heating unit (2) which are independently arranged are arranged, the first heating unit (1) is provided with a first water inlet (101) and a first water outlet (102), and the second heating unit (2) is provided with a second water inlet (201) and a second water outlet (202); A heating unit, on which a heating water return port (3) and a heating water outlet (4) are provided, wherein the heating water return port (3) is connected to the first heating unit (1), and the heating water outlet (4) is connected to the second heating unit (2); A heat exchanger (5) is connected to a domestic hot water inlet (501) and a domestic hot water outlet (502), and hot water flowing out of the first heating unit (1) enters the heat exchanger (5) and flows back to the second heating unit (2) after completing heat exchange in the heat exchanger (5); The first water outlet (102) of the first heating unit (1) is provided with a first pipe (6), the first pipe (6) is provided with a first three-way valve (7), one end of the first three-way valve (7) is connected to the heat exchanger (5), and the other end is connected to the second water inlet (201); A second pipe (8) is connected between the second water outlet (202) and the heating water outlet (4), a second three-way valve (9) is arranged on the second pipe (8), a third pipe (10) is arranged between the second three-way valve (9) and the heat exchanger (5), and the third pipe (10) is connected to the first three-way valve (7); A fifth pipe (12) is provided between the heat exchanger (5) and the second water inlet (201), a third three-way valve (13) is provided on the fifth pipe (12), and a sixth pipe (14) is connected between the heating water return port (3) and the third three-way valve (13).

2. The wall-mounted boiler according to claim 1, characterized in that: A fourth pipe (11) is provided between the first water inlet (101) and the heating water return port (3), and one end of the sixth pipe (14) is connected to the fourth pipe (11).

3. The wall-mounted boiler according to claim 2, characterized in that: The second tube (8) is provided with a temperature limiter (15).

4. The wall-mounted boiler according to claim 3, characterized in that: A water pump (16) is provided on the fourth pipe (11). Along the flow direction of the water flow, the water pump (16) is arranged at the rear end of the connection portion between the fourth pipe (11) and the sixth pipe (14).

5. The wall-mounted boiler according to claim 4, characterized in that: The domestic hot water outlet (502) is provided with a domestic hot water outlet pipe (17), and the domestic hot water outlet pipe (17) is provided with a temperature sensing package (18).

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