CN213984028U - Wall-mounted stove - Google Patents

Abstract

The utility model is suitable for a hanging stove technical field discloses a hanging stove, the hanging stove includes main control unit, heating element, the heating pipeline, the domestic water pipeline, the bypass pipe, water flow sensor, the switching-over valve, first control valve, second control valve and circulating pump, heating element is used for heating the water that flows through in the heating pipeline, the both ends of domestic water pipeline are connected with the both ends of heating pipeline respectively and enclose with the heating pipeline and form the domestic water return circuit, the both ends of heating pipeline are connected with the both ends of heating pipeline respectively and enclose with the heating pipeline and form the heating return circuit, the both ends of bypass pipe are connected the domestic water pipeline respectively, water flow sensor is used for detecting the water flow signal who flows through the bypass pipe and sends water flow signal to main control unit; the main controller is used for controlling the reversing valve, the circulating pump and the heating assembly to work. The utility model provides a hanging stove has saved plate heat exchanger and water replenishing valve, and overall structure is simple, and is small, light in weight, and the cost is few.

Description

Wall-mounted stove

Technical Field

The utility model relates to a hanging stove technical field especially relates to a hanging stove.

Background

The wall-mounted boiler includes a domestic water line for supplying hot water required for daily life, such as bath water or kitchen water, to a user, and a heating line for supplying warm air to the user. At present, the wall-mounted boiler on the market has the following defects: (1) the water in the heating pipeline exchanges heat with the water in the domestic water pipeline through the plate heat exchanger so as to realize zero cold water of the domestic water and meet other requirements of domestic water of users; (2) a water replenishing valve needs to be arranged in the pipeline to ensure that the water quantity in the heating pipeline is sufficient; (3) the domestic water pipeline and the heating pipeline are respectively provided with a circulating pump, the circulating pump provided by the domestic water pipeline is used for realizing zero cold water of domestic water and meeting other requirements of domestic water of users, and the circulating pump provided by the heating pipeline is used for meeting the heating requirements of the users. Therefore, the existing wall-hanging stove has complex structure, large volume and heavy weight.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a hanging stove, it aims at solving the technical problem that current hanging stove structure is complicated, bulky, weight is big.

In order to achieve the above purpose, the utility model provides a scheme is: the wall-mounted furnace comprises a main controller, a heating assembly, a heating pipeline, a domestic water pipeline, a bypass pipe, a water flow sensor, a reversing valve, a first control valve, a second control valve and a circulating pump, wherein the heating assembly is used for heating water flowing through the heating pipeline; the circulating pump is used for respectively providing power for the flow of water in the domestic water loop and the flow of water in the heating loop; the first control valve is used for controlling the circulation state of water in the domestic water pipeline, and the second control valve is used for controlling the circulation state of water in the heating pipeline; the two ends of the bypass pipe are respectively connected with the domestic water pipeline, and the water flow sensor is used for detecting the water flow flowing through the bypass pipe and sending a water flow signal to the main controller; the main controller is used for controlling the reversing valve, the circulating pump and the heating assembly to work.

Furthermore, the domestic water pipeline comprises a domestic water inlet pipe, a domestic water outlet pipe, a domestic water return pipe communicated with the domestic water inlet pipe and the domestic water outlet pipe, a water supply part for supplying water to the domestic water pipeline and an output part for outputting hot domestic water, and the domestic water return pipe is connected between the domestic water inlet pipe and the domestic water outlet pipe; one end of the heating pipeline is communicated with the domestic water inlet pipe, the other end of the heating pipeline is communicated with the domestic water outlet pipe through the reversing valve, the first control valve is arranged on the domestic water inlet pipe, the bypass pipe is communicated with the domestic water inlet pipe and the domestic water outlet pipe, one end of the bypass pipe is connected between the first control valve and the water supply part, and the other end of the bypass pipe is connected between the reversing valve and the output part.

Furthermore, the water flow sensor is arranged on the domestic water inlet pipe and positioned between the first control valve and the water supply part; or the water flow sensor is arranged on the bypass pipe.

Further, the hanging stove still includes the relief pressure valve, the relief pressure valve is located on the domestic water inlet tube and be located first control valve with between the water supply portion in order to be used for the reduction certainly domestic water inlet tube flows to the pressure of the water in the heating pipeline.

Furthermore, the heating pipeline comprises a heating water return pipe, a heating water outlet pipe and a heating pipe communicated with the heating water return pipe and the heating water outlet pipe, wherein one end of the heating pipeline is communicated with the heating water return pipe and the other end of the heating pipeline is communicated with the heating water outlet pipe through the reversing valve.

Furthermore, the heating pipeline comprises a cold water pipe section, a hot water pipe section and a heating pipe section which is connected with the cold water pipe section and the hot water pipe section, the heating pipe section is arranged in the heating assembly, the cold water pipe section is communicated with the domestic water inlet pipe and the heating water return pipe, the hot water pipe section is respectively communicated with the domestic water outlet pipe and the heating water outlet pipe through the reversing valve, and one circulating pump is arranged and is positioned on the cold water pipe section.

Further, the heating assembly comprises a main heat exchanger and a burner arranged below the main heat exchanger, the heating section penetrates through the main heat exchanger, the main controller is further used for controlling the burner to work, the wall-mounted furnace further comprises a fuel inlet pipe, and the fuel inlet pipe is communicated with the burner and used for providing fuel for the burner.

Furthermore, the reversing valve is a three-way valve, the three-way valve is provided with three interfaces, and the cold water pipe section, the domestic water outlet pipe and the heating outlet pipe are respectively connected with one interface.

Furthermore, the first control valve and the second control valve are both one-way valves or stop valves, and the main controller is also used for controlling the stop valves to work; alternatively, the first and second electrodes may be,

one of the first control valve and the second control valve is the one-way valve, the other is the stop valve, and the main controller is also used for controlling the stop valve to work.

Further, the hanging stove still includes expansion tank, expansion tank intercommunication heating pipeline is in order to be used for reducing the pressure that increases because of the inflation after the water heating in the heating pipeline.

The utility model provides a hanging stove's beneficial effect as follows: the two ends of the domestic water pipeline are respectively connected with the two ends of the heating pipeline and form a domestic water loop with the heating pipeline in an enclosing manner, so that cold water in the domestic water pipeline can flow into the heating pipeline; through the heating element who is used for heating the water that flows through in the heating pipeline that sets up to cold water in the domestic water pipeline can be heated when flowing through the heating pipeline, and the hot water after the heating can flow back to the domestic water pipeline again through the domestic water return circuit that domestic water pipeline and heating pipeline formed, thereby has realized the heating for domestic water. By arranging the bypass pipe and the water flow sensor, when a user needs to use hot domestic water, a domestic water end (such as a bathroom faucet) can be instantly opened in advance and then closed, water flows through the bypass pipe at the moment of opening the domestic water end, the water flow sensor detects a water flow signal flowing through the bypass pipe and then transmits the signal to the main controller, the main controller controls the reversing valve to be communicated with the heating pipeline and the domestic water pipeline to form a domestic water loop, meanwhile, the main controller controls the circulating pump to be opened, under the action of the circulating pump, cold water remained in the domestic water pipeline flows into the heating pipeline to be heated, hot water flowing through the heating pipeline and heated by the heating assembly flows back to the domestic water pipeline, when the user opens the domestic water end again, hot water can directly flow out, zero cold water of the domestic water is realized, and meanwhile, when the user opens the domestic water end again, the main controller controls the circulating pump to be closed, and under the action of water pressure, cold water from a water source flows into the heating pipeline through the domestic water pipeline to be heated, then flows into the domestic water pipeline again and flows to the water end for the user to use. And the two ends of the heating pipeline are respectively connected with the two ends of the heating pipeline and form a heating loop with the heating pipeline in an enclosing manner, cold water in the heating pipeline flows into the heating pipeline under the action of the circulating pump, and flows back to the heating pipeline for heating users after being heated into hot water by the heating component, so that heating of heating water and heating of the users are realized. Therefore, the plate heat exchanger does not need to be additionally arranged, so that the domestic water can be heated, the cold water can be eliminated, the heating water can be heated, and the heating pipeline can be heated.

In addition, the two ends of the domestic water pipeline are respectively connected with the two ends of the heating pipeline and are enclosed with the heating pipeline to form a domestic water loop, the two ends of the heating pipeline are respectively connected with the two ends of the heating pipeline and are enclosed with the heating pipeline to form a heating loop, and the reversing valve can be used for controlling the heating pipeline to be switched between the domestic water loop and the heating loop, so that when the heating pipeline needs water supplement, the heating pipeline and the heating pipeline are communicated, automatic water supplement can be realized, and a water supplement valve does not need to be specially arranged additionally. Therefore, the utility model provides a hanging stove has saved plate heat exchanger and water replenishing valve, makes overall structure simpler, and the volume reduces, and weight reduction has also saved the cost simultaneously.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.

Fig. 1 is a schematic structural view of a wall-mounted stove according to an embodiment of the present invention;

fig. 2 is another schematic structural diagram of a wall-mounted stove according to an embodiment of the present invention;

fig. 3 is a schematic structural view of a wall-hanging stove according to a second embodiment of the present invention;

fig. 4 is another schematic structural diagram of a wall-hanging stove according to the second embodiment of the present invention.

The reference numbers illustrate: 100. a wall-mounted furnace; 11. a main controller; 12. a heating assembly; 121. a primary heat exchanger; 122. a burner; 2. heating the pipeline; 21. a cold water pipe section; 22. a hot water pipe section; 23. a heating pipe section; 3. a heating pipeline; 31. a heating water return pipe; 32. a heating water outlet pipe; 33. a heating pipe; 4. a domestic water pipeline; 41. a domestic water inlet pipe; 42. a domestic water outlet pipe; 43. a domestic water return pipe; 44. a water supply part; 45. an output section; 46. a bypass pipe; 51. a diverter valve; 511. an interface; 52. a first control valve; 53. a second control valve; 54. a pressure reducing valve; 6. a circulation pump; 7. a fuel inlet pipe; 8. a water flow sensor; 9. an expansion tank.

The objects, features and advantages of the present invention will be further described with reference to the accompanying drawings.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

It should be noted that all the directional indicators (such as upper, lower, left, right, front, and rear … …) in the embodiment of the present invention are only used to explain the relative position relationship between the components, the motion situation, etc. in a specific posture, if the specific posture is changed, the directional indicator is changed accordingly.

It will also be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present.

In addition, the descriptions related to "first", "second", etc. in the present invention are for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicit ly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, the technical solutions in the embodiments may be combined with each other, but it must be based on the realization of those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should not be considered to exist, and is not within the protection scope of the present invention.

The first embodiment is as follows:

as shown in fig. 1-2 (the straight line arrow in the figure is the flowing direction of the fluid in the pipe), the embodiment of the present invention provides a wall-hanging stove 100, which comprises a main controller 11, a heating component 12, a heating pipeline 2, a heating pipeline 3, a domestic water pipeline 4, a bypass pipe 46, a water flow sensor 8, a reversing valve 51, a first control valve 52, a second control valve 53 and a circulating pump 6, wherein the heating component 12 is used for heating water flowing through the heating pipeline 2, two ends of the domestic water pipeline 4 are respectively connected with two ends of the heating pipeline 2 and enclose with the heating pipeline 2 to form a domestic water loop, two ends of the heating pipeline 3 are respectively connected with two ends of the heating pipeline 2 and enclose with the heating pipeline 2 to form a heating loop, and the reversing valve 51 is used for controlling the heating pipeline 2 to switch between the domestic water loop and the heating loop; the circulating pump 6 is used for respectively providing power for the flow of water in the domestic water loop and the flow of water in the heating loop; the first control valve 52 is used for controlling the water flowing state in the domestic water pipeline 4, and the second control valve 53 is used for controlling the water flowing state in the heating pipeline 3; the two ends of the bypass pipe 46 are respectively connected with the domestic water pipeline 4, and the water flow sensor 8 is used for detecting the water flow flowing through the bypass pipe 46 and sending a water flow signal to the main controller 11; the main controller 11 is used to control the operation of the reversing valve 51, the circulation pump 6 and the heating assembly 12.

In this embodiment, through the both ends with domestic water pipeline 4 respectively with the both ends of heating pipeline 2 be connected and enclose with heating pipeline 2 and form domestic water return circuit, thereby cold water in the domestic water pipeline 4 can flow to in the heating pipeline 2, through setting up heating element 12 that is used for heating the water that flows through in the heating pipeline 2, thereby cold water in the domestic water pipeline 4 can be heated when flowing through the heating pipeline 2, hot water after the heating can flow back to the domestic water pipeline 4 through the domestic water return circuit that domestic water pipeline 4 and heating pipeline 2 formed again, thereby realized the heating for domestic water. The two ends of the heating pipeline 3 are respectively connected with the two ends of the heating pipeline 2 and form a heating loop with the heating pipeline 2 in an enclosing mode, cold water in the heating pipeline 3 flows into the heating pipeline 2 under the action of the circulating pump 6, and flows back to the heating pipeline 3 to supply heat for users after being heated into hot water through the heating component 12, so that heating of heating water and heating of the users are achieved. Therefore, the domestic water and the heating water can be heated without additionally arranging a plate heat exchanger.

When a user needs to use hot domestic water, a domestic water end (such as a bathroom faucet) can be instantly opened in advance and then closed, at the moment of opening the domestic water end, by arranging the bypass pipes 46 with two ends respectively connected with the domestic water pipeline 4, water flows through the bypass pipes 46, after the water flow sensor 8 detects a water flow signal flowing through the bypass pipes 46, the signal is transmitted to the main controller 11, the main controller 11 controls the reversing valve 51 to be connected with the heating pipeline 2 and the domestic water outlet pipe 42, a domestic water loop is formed, and meanwhile, the main controller 11 controls the circulating pump 6 to be opened. Under the action of the circulating pump 6, water flows in the domestic water loop, namely, cold water remained in the domestic water pipeline 4 flows into the heating pipeline 2 to be heated, hot water heated by the heating component 12 flows back into the domestic water pipeline 4 through the heating pipeline 2, when a user opens the domestic water end again, hot water can directly flow out, so that zero cold water of the domestic water is realized, meanwhile, when the user opens the domestic water end again, the main controller 11 controls the circulating pump 6 to be closed, under the action of water pressure, cold water from a water source flows into the heating pipeline 2 through the domestic water pipeline 4, and the cold water flows back into the domestic water pipeline 4 to be used by the user after being heated into hot water.

The domestic water pipeline 4 of hanging stove 100 that this embodiment provided both ends are connected with the both ends of heating pipeline 2 respectively and enclose with heating pipeline 2 and close and form domestic water return circuit, the both ends of heating pipeline 3 are connected with the both ends of heating pipeline 2 respectively and enclose with heating pipeline 2 and close and form the heating return circuit, switching-over valve 51 can be used to control heating pipeline 2 and switch between domestic water return circuit and heating return circuit, when heating pipeline 3 needs the moisturizing, intercommunication heating pipeline 2 and heating pipeline 3, can realize automatic water supply, need not set up the moisturizing valve specially in addition.

Therefore, the embodiment of the utility model provides a hanging stove 100 has saved plate heat exchanger and water replenishing valve, makes overall structure simpler, and the volume reduces, and weight reduction has also saved the cost simultaneously.

Referring to fig. 1 and 2 again, the domestic water pipeline 4 includes a domestic water inlet pipe 41, a domestic water outlet pipe 42, a domestic water return pipe 43 communicating the domestic water inlet pipe 41 and the domestic water outlet pipe 42, a water supply part 44 for supplying water to the domestic water pipeline 4, and an output part 45 for outputting hot domestic water, the domestic water return pipe 43 is connected between the domestic water inlet pipe 41 and the domestic water outlet pipe 42; one end of the heating pipeline 2 is communicated with the domestic water inlet pipe 41, the other end is communicated with the domestic water outlet pipe 42 through the reversing valve 51, the first control valve 52 is arranged on the domestic water inlet pipe 41, the bypass pipe 46 is communicated with the domestic water inlet pipe 41 and the domestic water outlet pipe 42, one end of the bypass pipe 46 is connected between the first control valve 52 and the water supply part 44, and the other end is connected between the reversing valve 51 and the output part 45. The water supply unit 44 and the output unit 45 may be connectors or connection pipes. Through this kind of mode of setting, when needs use hot domestic water, the water end that instantaneously opens and output portion 45 intercommunication is closed, rivers flow through bypass pipe 46, water flow sensor 8 sends the water flow signal who detects to main control unit 11, main control unit 11 control switching-over valve 51 switch-on heating pipeline 2 and domestic water pipeline 4, and simultaneously, main control unit 11 control circulating pump 6 is opened, the cold water that remains in domestic water pipeline 4 follows domestic water outlet pipe 42 in proper order, domestic water wet return 43, domestic water inlet pipe 41 flows to heating pipeline 2 and is heated into behind the hot water, flow back to domestic water outlet pipe 42 from heating pipeline 2 again and export with output portion 45, thereby realize zero cold water function. When the user opens the water end connected to the output part 45 again, the circulation pump 6 is turned off, and under the action of water pressure, part of cold water from the water source flows through the domestic water inlet pipe 41 through the water supply part 44 to the heating pipeline 2, is heated into hot water in the heating pipeline 2 and then flows to the output part 45 through the domestic water outlet pipe 42, and the other part of cold water from the water source flows through the domestic water return pipe 43 through the water supply part 44 to the output part 45 to be mixed with the hot water from the domestic water outlet pipe 42, so that the hot water with proper temperature can be provided for the user.

Preferably, the water flow sensor 8 is provided on the domestic water inlet pipe 41 between the first control valve 52 and the water supply part 44. By this arrangement, it is ensured that the water flow sensor 8 can accurately detect the water flow signal flowing through the bypass pipe 46 when the domestic water end is open.

Preferably, the wall-hanging stove 100 further includes a pressure reducing valve 54, the pressure reducing valve 54 being provided on the domestic water inlet pipe 41 and being located between the first control valve 52 and the water supply part 44 for reducing the pressure of the water flowing from the domestic water inlet pipe 41 into the heating pipeline 2. In the present embodiment, the pressure reducing valve 54 is provided between the first control valve 52 and the water flow sensor 8. Usually, the water pressure in the heating pipeline 3 is 0.1-0.3Mpa, the water pressure in the domestic water pipeline 4 is 0.02-0.8Mpa, and the water pressure in the domestic water pipeline 4 is greater than the water pressure in the heating pipeline 3, because the water in the domestic water pipeline 4 and the water in the heating pipeline 3 both flow to the heating pipeline 2 and are heated in the heating pipeline 2, the water pressure difference between the water in the domestic water pipeline 4 and the water in the heating pipeline 3 needs to be reduced before the water flows into the heating pipeline 2, so as to avoid damaging the heating pipeline 2, in this embodiment, the pressure reducing valve 54 is arranged between the first control valve 52 and the water flow sensor 8, so as to reduce the pressure of the water in the domestic water pipeline 4, and thus reduce the water pressure difference between the water in the domestic water pipeline 4 and the water in the heating pipeline 3 and the water in the heating pipeline 2.

Referring to fig. 1 and 2 again, the heating pipeline 3 includes a heating water return pipe 31, a heating water outlet pipe 32, and a heating pipe 33 communicating the heating water return pipe 31 and the heating water outlet pipe 32, one end of the heating pipeline 2 communicates with the heating water return pipe 31, and the other end communicates with the heating water outlet pipe 32 through a direction change valve 51. With this arrangement, when the heating pipe 2 communicates with the heating pipe 3, cold water flows from the heating return pipe 31 to the heating pipe 2, becomes hot water by heating of the heating element 12, and then flows from the other end of the heating pipe 2 to the heating pipe 33 through the heating outlet pipe 32 for heating by the user.

Referring to fig. 1 and 2 again, the heating pipeline 2 includes a cold water pipe section 21, a hot water pipe section 22, and a heating pipe section 23 connecting the cold water pipe section 21 and the hot water pipe section 22, the heating pipe section 23 is disposed in the heating element 12, the cold water pipe section 21 is connected to the domestic water inlet pipe 41 and the heating water return pipe 31, the hot water pipe section 22 is connected to the domestic water outlet pipe 42 and the heating water outlet pipe 32 through the reversing valve 51, and the circulating pump 6 is disposed on the cold water pipe section 21. It will be appreciated that in other embodiments the circulation pump 6 may also be provided on the hot water pipe section 22. Through the arrangement mode, when the domestic water function is started, the reversing valve 51 is communicated with the hot water pipe section 22 and the domestic water outlet pipe 42, after the circulating pump 6 is opened, cold water remained in the domestic water pipe 4 flows to the heating pipe section 23 in sequence along the directions of the domestic water outlet pipe 42, the domestic water return pipe 43, the domestic water inlet pipe 41 and the cold water pipe section 21 to be heated into hot water, and then flows to the domestic water outlet pipe 42 through the hot water pipe section 22 to be output by the output part 45, so that the zero cold water function is realized. When the user opens the water end again, the circulation pump 6 is turned off, and under the action of water pressure, part of cold water from the water source flows through the domestic water inlet pipe 41 and the cold water pipe section 21 through the water supply portion 44, and flows through the hot water pipe section 22 and the domestic water outlet pipe 42 to the output portion 45 after the heating pipe section 23 is heated to hot water. When the heating function is started, the circulation pump 6 is turned on, and the cold water in the heating water return pipe 31 flows to the heating pipe section 23 through the cold water pipe section 21 under the action of the circulation pump 6, is heated and becomes hot water, and then flows to the heating water outlet pipe 32 from the hot water pipe section 22 and flows to the heating pipe 33, so as to provide heating for the user.

Through setting up a circulating pump 6, when domestic water function starts, can drive during the cold water that remains in domestic water pipeline 4 flows heating pipeline 2, realize zero cold water, when the heating function starts, can drive the water in the heating pipeline 3 and circulate, realize the heating, need not set up respective circulating pump respectively for domestic water pipeline 4 and heating pipeline 3 specially, reduce the weight of complete machine and saved the cost. It will be appreciated that two circulation pumps 6 may be provided, one being provided on the domestic water line 4 and the other being provided on the heating line 3.

Preferably, the heating assembly 12 includes a main heat exchanger 121 and a burner 122 disposed below the main heat exchanger 121, the heating pipe section 23 is disposed through the main heat exchanger 121, the main controller 11 is further configured to control the burner 122 to operate, the wall-hanging stove 100 further includes a fuel inlet pipe 7, and the fuel inlet pipe 7 is communicated with the burner 122 for supplying fuel to the burner 122. Wherein the fuel may be natural gas.

Preferably, the reversing valve 51 is a three-way valve, the three-way valve is provided with three connectors 511, and the cold water pipe section 21, the domestic water outlet pipe 42 and the heating outlet pipe 32 are respectively connected with one connector 511. With this arrangement, when the hot water pipe section 22 and the domestic water outlet pipe 42 are connected, the heating outlet pipe 32 is closed; when the hot water pipe section 22 and the heating water outlet pipe 32 are connected, the domestic water outlet pipe 42 is closed.

Preferably, the first control valve 52 and the second control valve 53 are both check valves or stop valves, and the main controller 11 is further configured to control the stop valves to operate; alternatively, one of the first control valve 52 and the second control valve 53 is a check valve, and the other is a stop valve, and the main controller 11 is also used to control the stop valve to operate. In the wall-hanging stove 100 shown in fig. 1, both the first control valve 52 and the second control valve 53 are check valves. The water in the cold water pipe section 21 and the water in the heating water return pipe 31 are prevented from flowing backward into the heating water return pipe 31 by setting the first control valve 52 as a check valve, and the water in the cold water pipe section 21 and the water in the heating water return pipe 41 are prevented from flowing backward into the heating water return pipe 31 by setting the second control valve 53 as a check valve. It is understood that in other embodiments, it is also possible that both the first control valve 52 and the second control valve 53 are shut-off valves; alternatively, the first control valve 52 may be a check valve, and the second control valve 53 may be a stop valve; alternatively, the first control valve 52 may be a shutoff valve, and the second control valve 53 may be a check valve. By setting the first control valve 52 as a stop valve, when the stop valve is opened, no water flows out of the domestic water inlet pipe 41, so that the situation of water flow backflow can be prevented; through establishing second control valve 53 as the stop valve, when opening the stop valve, can not have rivers to flow out among the heating wet return 31, can play the condition that prevents rivers adverse current and take place, simultaneously, establish second control valve 53 as the stop valve and also be favorable to the cleanness to heating pipeline 3. In the wall-hanging stove 100 shown in fig. 2, the first control valve 52 is a check valve, and the second control valve 53 is a stop valve.

Referring to fig. 1 and 2, the hanging stove 100 further includes an expansion tank 9, and the expansion tank 9 is communicated with the heating pipeline 3 for reducing the pressure of the water in the heating pipeline 3 increased by expansion after heating. In the present embodiment, the expansion tank 9 is connected to the heating water return pipe 31 between the second control valve 53 and the connection of the heating water return pipe 31 and the cold water pipe section 21.

Example two:

the difference between this embodiment and the first embodiment is that the water flow sensor 8 is arranged at a different position, and only the positional relationship between the water flow sensor 8 and the pressure reducing valve 54 will be described below, and other similar technical solutions will not be described again.

Specifically, in the first embodiment, the water flow sensor 8 is disposed on the domestic water inlet pipe 41 and located between the pressure reducing valve 54 and the water supply portion 44, and the pressure reducing valve 54 is disposed on the domestic water inlet pipe 41 and located between the water flow sensor 8 and the first control valve 52. In the present embodiment, referring to fig. 3 and 4 (the straight arrow in the figure indicates the flowing direction of the fluid in the pipe), the water flow sensor 8 is disposed on the bypass pipe 46, and the pressure reducing valve 54 is disposed on the domestic water inlet pipe 41 and between the first control valve 52 and the water supply portion 44.

The above only be the preferred embodiment of the utility model discloses a not consequently restriction the utility model discloses a patent range, all are in the utility model discloses a conceive, utilize the equivalent structure transform of what the content was done in the description and the attached drawing, or direct/indirect application all is included in other relevant technical field the utility model discloses a patent protection within range.

Claims (10)

1. The wall-mounted furnace is characterized by comprising a main controller, a heating assembly, a heating pipeline, a domestic water pipeline, a bypass pipe, a water flow sensor, a reversing valve, a first control valve, a second control valve and a circulating pump, wherein the heating assembly is used for heating water flowing through the heating pipeline;

the circulating pump is used for respectively providing power for the flow of water in the domestic water loop and the flow of water in the heating loop; the first control valve is used for controlling the circulation state of water in the domestic water pipeline, and the second control valve is used for controlling the circulation state of water in the heating pipeline; the two ends of the bypass pipe are respectively connected with the domestic water pipeline, and the water flow sensor is used for detecting the water flow flowing through the bypass pipe and sending a water flow signal to the main controller; the main controller is used for controlling the reversing valve, the circulating pump and the heating assembly to work.

2. The wall hanging stove as claimed in claim 1, wherein the domestic water pipe comprises a domestic water inlet pipe, a domestic water outlet pipe, a domestic water return pipe communicating the domestic water inlet pipe and the domestic water outlet pipe, a water supply part for supplying water to the domestic water pipe, and an output part for outputting hot domestic water, the domestic water return pipe is connected between the domestic water inlet pipe and the domestic water outlet pipe; one end of the heating pipeline is communicated with the domestic water inlet pipe, the other end of the heating pipeline is communicated with the domestic water outlet pipe through the reversing valve, the first control valve is arranged on the domestic water inlet pipe, the bypass pipe is communicated with the domestic water inlet pipe and the domestic water outlet pipe, one end of the bypass pipe is connected between the first control valve and the water supply part, and the other end of the bypass pipe is connected between the reversing valve and the output part.

3. The wall hanging stove as claimed in claim 2, wherein the water flow sensor is provided on the domestic water inlet pipe and between the first control valve and the water supply part; or the water flow sensor is arranged on the bypass pipe.

4. The wall hanging stove as claimed in claim 2, further comprising a pressure reducing valve provided on the domestic water inlet pipe between the first control valve and the water supply part for reducing the pressure of the water flowing from the domestic water inlet pipe into the heating pipeline.

5. The wall hanging stove as claimed in any one of claims 2 to 4, wherein the heating pipeline includes a heating water return pipe, a heating water outlet pipe and a heating pipe communicating the heating water return pipe and the heating water outlet pipe, one end of the heating pipeline communicates with the heating water return pipe, and the other end communicates with the heating water outlet pipe through the direction change valve.

6. The wall hanging stove as claimed in claim 5, wherein the heating pipeline includes a cold water pipe section, a hot water pipe section, and a heating pipe section connecting the cold water pipe section and the hot water pipe section, the heating pipe section is provided in the heating assembly, the cold water pipe section communicates with the domestic water inlet pipe and the heating water return pipe, the hot water pipe section communicates with the domestic water outlet pipe and the heating water outlet pipe through the reversing valve, respectively, and the circulating pump is provided one and is provided on the cold water pipe section.

7. The wall hanging stove as claimed in claim 6, wherein the heating assembly comprises a main heat exchanger and a burner disposed below the main heat exchanger, the heating section is disposed through the main heat exchanger, the main controller is further configured to control the burner to operate, and the wall hanging stove further comprises a fuel inlet pipe in communication with the burner for supplying fuel to the burner.

8. The wall hanging stove as claimed in claim 6, wherein the change valve is a three-way valve having three ports, and the cold water pipe section, the domestic water outlet pipe and the heating outlet pipe are connected to one of the ports, respectively.

9. The wall hanging stove as claimed in any one of claims 1 to 4, wherein the first control valve and the second control valve are both one-way valves or stop valves, and the main controller is further configured to control the operation of the stop valves; alternatively, the first and second electrodes may be,

one of the first control valve and the second control valve is the one-way valve, the other is the stop valve, and the main controller is also used for controlling the stop valve to work.

10. The wall hanging stove according to any one of claims 1 to 4, further comprising an expansion tank communicating with the heating line for reducing pressure increased by expansion of water in the heating line after heating.

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