CN211400281U - Wall-mounted furnace - Google Patents

Abstract

The utility model provides a wall-hung boiler. The main burner includes a first heating unit and a second heating unit. When heating and domestic hot water preparation are required at the same time, the high-temperature water flowing out through the first heating unit flows into the interior of the heat exchanger. , to heat the cold water flowing into the domestic hot water inlet of the heat exchanger, and then the hot water flows out through the domestic hot water outlet. The low-temperature water generated by the heat exchange inside the heat exchanger is returned to the second heating unit, and further heated in the second heating unit, and the high-temperature water generated after being heated by the second heating unit enters the heater equipment through the heating water outlet , to heat the room. By controlling the solenoid valve on the gas outlet, each gas outlet can be turned on or off, so that the heating unit or the heat exchanger can be heated quickly.

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 capable of heating mode and domestic water mode at the same time.

Background technique

The wall-hung boiler is an indispensable household appliance in daily life. The wall-hung boiler has the functions of heating and domestic hot water. In the heating mode, it can heat up the room; in the domestic hot water mode, it can heat the tap water, which is convenient for people. Use in the kitchen or bathroom. 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 both heating and hot water supply, especially in cold winter, if domestic hot water is used for a long time, the room temperature will decrease rapidly, thereby reducing the comfort of users. In addition, in the wall-hung boilers provided in the prior art, the heating mode is relatively simple, which is likely to cause the final water temperature to be too low or too high, thereby affecting the user experience.

Utility model content

To this end, the utility model provides a wall-hung boiler, comprising: a main heat exchanger, on which a first heating unit and a second heating unit are arranged independently of each other, and the first heating unit is provided with a first water inlet and a second heating unit. A first water outlet, the second heating unit is provided with a second water inlet and a second water outlet; a heating unit, which is provided with a heating water return port and a heating water outlet, and the heating water return port is connected to the first heating unit , the heating water outlet is connected to the second heating unit; the heat exchanger is connected with a domestic hot water inlet and a domestic hot water outlet, and the hot water flowing out through the first heating unit enters the heat exchange In the heat exchanger, after the heat exchange is completed in the heat exchanger, it returns to the second heating unit; the segmented burner includes several burners arranged side by side with each other, and the segmented burner is used to heat the main heat exchanger. heating; an air intake pipe includes an air inlet end and a plurality of air outlet ends consistent with the layout of several of the burners, and each of the air outlet ends is respectively provided with a solenoid valve.

The first water outlet of the first heating unit is provided with a first pipe, and 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 one end is connected to the Second water inlet.

A second pipe is connected between the second water outlet and the heating water outlet, a second three-way valve is arranged on the second pipe, and a second three-way valve is arranged between the second three-way valve and the heat exchanger There is a third pipe, and the third pipe is connected with the first three-way valve.

A fifth pipe is arranged between the heat exchanger and the second water inlet, a third three-way valve is arranged on the fifth pipe, and the heating water return port is connected with the third three-way valve There is a sixth tube.

A fourth pipe is arranged between the first water inlet and the heating water return port, and one end of the sixth pipe is connected to the fourth pipe.

A temperature limiter is arranged on the second tube.

A water pump is arranged on the fourth pipe, and along the flow direction of the water flow, the water pump is arranged at the rear end of the connecting part of the fourth pipe and the sixth pipe.

The domestic hot water outlet is provided with a domestic hot water outlet pipe, and a temperature sensing bulb is arranged on the domestic hot water outlet pipe.

The inlet end is provided with a proportional valve, the burner includes a first burner and a second burner, the outlet end includes a first outlet end connected with the first burner, and a first outlet end connected with the second burner. Connect the second outlet.

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

1. The wall-hung boiler provided by the present utility model comprises: a main heat exchanger on which a first heating unit and a second heating unit are arranged independently of each other, and the first heating unit is provided with a first water inlet and a first heating unit. A water outlet, the second heating unit is provided with a second water inlet and a second water outlet; a heating unit is provided with a heating water return port and a heating water outlet, and the heating water return port is connected to the first heating unit, so The heating water outlet is connected to the second heating unit; the heat exchanger is connected with a domestic hot water inlet and a domestic hot water outlet, and the hot water flowing out through the first heating unit enters the heat exchanger , and the heat exchanger will return to the second heating unit after the heat exchange is completed.

In the utility model, the burner includes a first heating unit and a second heating unit. When heating and preparing domestic hot water are required at the same time, the high-temperature water flowing out through the first heating unit flows into the heat exchanger, and the heat exchanger is heated. The cold water flowing into the domestic hot water inlet is heated, and then the hot water flows out through the domestic hot water outlet. The low-temperature water generated after heat exchange inside the heat exchanger is returned to the second heating unit, and further heated in the second heating unit. The high-temperature water generated after being heated by the second heating unit enters the heater equipment through the heating water outlet , to heat the room.

Through the combination of the first heating unit and the second heating unit, two functions of heating and domestic hot water can be performed at the same time.

At the same time, in the present invention, the air intake pipe includes an air inlet end and an air outlet end, and a plurality of air outlet ends consistent with the layout of the several burners, and each of the air outlet ends is respectively provided with a solenoid valve.

By controlling the solenoid valve on the gas outlet, each gas outlet can be turned on or off. When only one of the gas outlets is turned on, only the burner corresponding to the gas outlet will burn. The heating power is small; when multiple or all the gas outlet ends are turned on at the same time, the heating power to the heat exchanger is large, and the rapid heating of the heating unit or the heat exchanger can be realized. In the utility model, the water temperature can be controlled by the combination of the segmented burner and the air duct.

2. The wall-hung boiler provided by the utility model is provided with a proportional valve at the intake end. By controlling the proportional valve, the gas flowing into the segmented burner can be precisely controlled, and then the heating of the heating unit or the heat exchanger can be realized. Precise control of water temperature.

3. In the wall-hung boiler provided by the utility model, 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, and one end of the first three-way valve is connected to One end of the heat exchanger is connected to the second water inlet.

By arranging the first pipe and the first three-way valve, the hot water flowing out through the first water outlet can directly flow into the second heating unit through the second water inlet for reheating. Through the combination of the first pipe and the first three-way valve, the wall-hung boiler can realize a separate heating function.

4. In the wall-hung boiler provided by the present utility model, a second pipe is connected between the second water outlet and the heating water outlet, and a second three-way valve is arranged on the second pipe, and the second three-way A third pipe is arranged between the valve and the heat exchanger, and the third pipe is connected with the first three-way valve.

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, so as to heat up the water in the heater. At this time, the wall-hung boiler can be independently At the same time, the hot water flowing out through the second three-way valve can also flow into the heating water outlet, and the wall-hung boiler can realize a separate heating mode at this time.

5. The wall-hung boiler provided by the utility model controls and controls the water in the domestic hot water system to flow into the heating system in the independent domestic hot water mode. Since the domestic hot water itself has a certain temperature, when the domestic hot water flows into the heating system After the system is inside, the heating efficiency of the heating system can be improved. At the same time, it can avoid the limitation of domestic hot water, resulting in waste of water resources.

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 from these drawings without creative work.

Fig. 1 is the structural representation of the main heater provided by the utility model;

2 is a schematic diagram of the wall-hung boiler provided by the utility model when it is in a mode of simultaneous heating and domestic hot water;

3 is a schematic diagram of the wall-hung boiler provided by the utility model when it is in a separate heating mode;

4 is a schematic diagram of the wall-hung boiler provided by the utility model in a separate domestic hot water mode;

FIG. 5 is a schematic diagram of the assembly between the segmented burner and the bleed pipe provided by the present invention.

Description of reference numbers:

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 outlet; 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-temperature limiter; 16-water pump; 17-domestic heat Water outlet pipe; 18-Temperature bulb; 19-Gas inlet; 20-Segment burner; 2001-First burner; 2002-Second burner; 1 gas outlet; 213 - second gas outlet; 22 - solenoid valve; 23 - ignition needle; 24 - ignition needle.

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

The present embodiment provides a wall-hung boiler, including: a main burner, as shown in FIG. 1 , on which is provided a first heating unit 1 and a second heating unit 2 which are arranged independently of each other, and the first heating unit 1 is provided with A first water inlet 101 and a first water outlet 102, 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, and the gas flows into the burner through the gas inlet 19 .

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

In this embodiment, as shown in FIG. 2 and FIG. 5 , a segmented burner 20 is further included, including several burners arranged side by side with each other, and the segmented burners are used to heat the main heat exchanger;

As shown in FIG. 5 , the air intake pipe 21 includes an air inlet end 211 on which a gas inlet 19 is connected, an external air source is connected to the gas inlet, and a plurality of air outlet ends consistent with the layout of several of the burners. Each of the gas outlet ends is respectively provided with a solenoid valve 22, and the gas flowing in through the gas inlet end 211 is divided by the plurality of gas outlet ends, and then flows into the corresponding burner in sequence. The on-off of the gas outlet, so as to control the corresponding burner to burn or extinguish.

In this embodiment, there are two gas outlet ends, including a first gas outlet end 212 and a second gas outlet end 213 .

As shown in FIG. 5 , an ignition needle 23 and an ignition needle 24 are arranged inside the combustion chamber, the burner is ignited through the ignition needle 23, and whether the ignition is successful is judged by the ignition needle 24. The ignition needle and the ignition needle are adopted in the prior art. The structure is not limited too much in this embodiment.

In this embodiment, as shown in any of Figures 2-4, the heating water return port 3 is connected to the first heating unit 1, the heating water outlet 4 is connected to the second heating unit 2; the heat exchanger 5, on which The domestic hot water inlet 501 and the domestic hot water outlet 502 are connected, and the tap water enters the heat exchanger 5 through the domestic hot water inlet 501, and flows out through the domestic hot water outlet 502 after being heated, and then enters the kitchen and bathroom. Wait where you need hot water. In this embodiment, the hot water flowing out through the first heating unit 1 enters the heat exchanger 5, as shown in FIG. 2, after the heat exchange in the heat exchanger 5 is completed, it returns to the the second heating unit 2 .

In this embodiment, since the burner includes the first heating unit 1 and the second heating unit 2, the preparation of heating water and domestic hot water can be simultaneously realized by a set of burners.

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

In this embodiment, a second pipe 8 is connected between the second water outlet 202 and the heating water outlet 4 , and a second three-way valve 9 is provided on the second pipe 8 . The second three-way valve 9 A third pipe 10 is arranged between the heat exchanger 5 and the third pipe 10 is connected to the first three-way valve 7 . By arranging the second three-way valve 9 , the hot water flowing out through the second pipe 8 can not only flow into the heating water outlet 4 , but also directly flow into the third pipe 10 , and then flow into the heat exchanger 5 .

In this embodiment, as shown in any one of FIGS. 2-4 , a fifth pipe 12 is arranged between the heat exchanger 5 and the second water inlet 201 , and the hot water entering the heat exchanger 5 undergoes heat exchange after heat exchange. The water flows into the fifth pipe 12 . The fifth pipe 12 is provided with a third three-way valve 13 , and a sixth pipe 14 is connected between the heating water return port 3 and the third three-way valve 13 . 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 .

At the same time, a temperature limiter 15 is provided on the second pipe 8 . Excessive temperature of the hot water heated by the second heating unit is avoided by setting a temperature limiter. Meanwhile, a water pump 16 is arranged on the fourth pipe 11 , and the water pump 16 is arranged at the rear end of the connecting portion of the fourth pipe 11 and the sixth pipe 14 along the flow direction of the water flow. By arranging the water pump 16, the water flowing in through the heating water return port can stably flow into the inside of the first heating unit.

In this embodiment, 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 bulb 18 . By setting the domestic hot water outlet pipe 17, the hot water flowing out through the heat exchanger 5 is discharged to the outside.

With the wall-hung boiler provided in this embodiment, three heating modes can be realized:

The first, individual heating mode: As shown in Figure 3, the arrows in Figure 3 give the direction of water flow:

In the single heating mode, only heating equipment such as floor heating is heated. First, the burner is controlled to start, and the temperature rise operation is performed on the first heating unit and the second heating unit. The low-temperature water in the heating equipment first enters the fourth pipe through the heating water 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 interior of 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 first heating, 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 with the heating water outlet 4, so that the water heated twice flows into the heating equipment. .

The second, the independent domestic hot water mode: as shown in Figure 4, the arrow in Figure 4 shows the flow direction of the water flow:

In DHW alone mode, water does not enter the heating system. The water pump 16 is started, the circulating water flows out from the heat exchanger 5 and flows into the third three-way valve 13, and then enters the fourth pipe 11 in the direction shown by the arrow in the figure, and the water in the fourth pipe 11 first flows into the The first heating unit is initially heated, and then flows out from the first water outlet 102 and enters the first three-way valve 7, and the water flowing out from the first three-way valve 7 flows into the second heating unit 2 again. Inside the water inlet 201, the temperature is re-heated inside the second heating unit 2, the water after the re-heating flows out through the second water outlet 202 and enters the second pipe 8, and the water flows to the inside of the second three-way valve 9, and then in the second three-way valve 9. The divided flow of the second three-way valve 9 flows into the third pipe 10 , and flows back to the inside of the heat exchanger 5 through the third pipe 10 .

On the heat exchanger 5, a domestic hot water inlet 501 and a domestic hot water outlet 502 are simultaneously connected, and the water heated by the first heating unit and the second heating unit at the same time is generated inside the heat exchanger 5 with domestic hot water Heat exchange, thus ensuring the water temperature of domestic hot water.

The third is the simultaneous heating and domestic hot water mode. As shown in Figure 2, the arrows in Figure 4 show the direction of water flow:

When the water pump 16 is started, the heating water inside the heating equipment flows into the fourth pipe 11 through the heating return port 3, and then enters the first heating unit through the first water inlet 101 for heating. The water heated by the first heating unit 1 flows in through the first water outlet 102, and then flows into the first three-way valve 7. By controlling the first three-way valve 7, the water flowing out through the first three-way valve 7 flows into the first three-way valve 7. In the three pipes 10, the water flowing out through the third pipe 10 flows into the inside of the heat exchanger 5 to perform heat exchange. A domestic hot water inlet 501 and a domestic hot water outlet 502 are connected to the heat exchanger 5, and the water flowing into the heat exchanger 5 through the domestic hot water inlet 501 is heated by the hot water flowing out of the first heating unit. , so as to realize the preparation of domestic hot water.

At the same time, the water flowing out through 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, and the reheated water passes through the second water outlet 202 flows out and flows into the second pipe 8, when the water flows to the second three-way valve 9, the third three-way valve 9 is controlled to make the water flow directly into the heating water outlet, thereby realizing the preparation of heating water.

In this embodiment, through the control of the first three-way valve, the second three-way valve, the third three-way valve, the first heating unit and the second heating unit, domestic hot water and heating water can be prepared simultaneously.

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 valve can be realized through simple control logic. The valve is restricting too much.

At the same time, with the wall-hung boiler provided in this embodiment, the combustion power can also be controlled in the independent heating mode and the independent domestic hot water mode, as follows:

In the single heating mode, when the room needs to be heated rapidly, the solenoid valves 22 on the first combustion chamber 2001 and the second combustion chamber 2002 are controlled to open, and then the gas is ignited through the ignition needle 23 . When it is necessary to cool down the room, the solenoid valve 22 on the first combustion chamber 2001 or the second combustion chamber 2002 is opened, and only one combustion chamber is left to work at this time.

In the single domestic hot water mode, when the user needs to obtain hot water quickly, the solenoid valves 22 on the first combustion chamber 2001 and the second combustion chamber 2002 are controlled to open, and then the gas is ignited through the ignition needle 23 . When the user needs to cool down the hot water, the solenoid valve 22 on the first combustion chamber 2001 or the second combustion chamber 2002 is controlled to open, and only one combustion chamber is left to work at this time, and energy can also be saved at this time.

In the same way, in the simultaneous heating and domestic hot water mode, the heating rate of the hot water can be adjusted by controlling the opening or closing of the first combustion chamber and the second combustion chamber.

As a variant, in this embodiment, not only two combustion chambers, but also multiple different combustion chambers can be used. At this time, each combustion chamber is provided with a solenoid valve, and the controller can control the work according to the temperature value input by the user. The number of combustion chambers, and then the temperature is precisely controlled.

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-hung boiler, is characterized in that, comprises: A main heat exchanger on which is provided a first heating unit (1) and a second heating unit (2) which are arranged independently of each other, the first heating unit (1) is provided with a first water inlet (101) and a first water inlet (101) a water outlet (102), the second heating unit (2) is provided with a second water inlet (201) and a second water outlet (202); A heating unit, which is provided with a heating water return port (3) and a heating water outlet (4), the heating water return port is connected to the first heating unit (1), and the heating water outlet (4) is connected to the second heating unit heating unit (2); The heat exchanger (5) is connected with a domestic hot water inlet (501) and a domestic hot water outlet (502), and the hot water flowing out through the first heating unit (1) enters the heat exchanger ( 5), after the heat exchange is completed in the heat exchanger (5), it is returned to the second heating unit (2); a segmented burner (20), comprising several burners arranged side by side, the segmented burner (20) is used to heat the main heat exchanger; The air intake pipe (21) includes an air intake end (211) and a plurality of air outlet ends consistent with the layout of the several burners, and each of the air outlet ends is respectively provided with a solenoid valve (22). 2. The wall-hung boiler according to claim 1, wherein the first water outlet (102) of the first heating unit (1) is provided with a first pipe (6), and the first pipe (6) A first three-way valve (7) is provided on the top, one end of the first three-way valve (7) is connected to the heat exchanger (5), and one end is connected to the second water inlet (201). 3. The wall-hung boiler according to claim 2, wherein a second pipe (8) is connected between the second water outlet (202) and the heating water outlet (4), and the second pipe (8) is provided with a second three-way valve (9), a third pipe (10) is provided 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). 4. The wall-hung boiler according to claim 3, wherein a fifth pipe (12) is provided between the heat exchanger (5) and the second water inlet (201), and the fifth pipe (12) is provided with a third three-way valve (13), and a sixth pipe (14) is connected between the heating water return port (3) and the third three-way valve (13). 5. The wall-hung boiler according to claim 4, characterized in that, a fourth pipe (11) is arranged between the first water inlet (101) and the heating return water inlet (3), and the sixth pipe One end of (14) is connected with the fourth pipe (11). 6. The wall-hung boiler according to claim 5, characterized in that, a thermostat (15) is arranged on the second pipe (8). 7 . The wall-hung boiler according to claim 6 , wherein a water pump ( 16 ) is arranged on the fourth pipe ( 11 ), and the water pump ( 16 ) is arranged on the fourth pipe ( 16 ) along the flow direction of the water flow. 8 . The rear end of the connecting part of the pipe (11) and the sixth pipe (14). 8. The wall-hung boiler according to claim 6, wherein a domestic hot water outlet pipe (17) is provided on the domestic hot water outlet (502), and a domestic hot water outlet pipe (17) is provided on the domestic hot water outlet pipe (17). There are thermowells (18). 9 . The wall-hung boiler according to claim 1 , wherein a proportional valve is provided at the intake end. 10 . 10. The wall-hung boiler according to claim 1, wherein the burner comprises a first burner (2001) and a second burner (2002), and the gas outlet comprises a first burner connected to the first burner a gas outlet end (212), and a second gas outlet end (213) connected with the second burner.

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