CN215892775U

CN215892775U - Mix water tank and have its hanging stove

Info

Publication number: CN215892775U
Application number: CN202121784805.1U
Authority: CN
Inventors: 卢宇轩; 余浩伦; 龚文添; 张锦梁
Original assignee: Guangdong Wanhe Thermal Energy Technology Co Ltd
Current assignee: Guangdong Wanhe Thermal Energy Technology Co Ltd
Priority date: 2021-07-31
Filing date: 2021-07-31
Publication date: 2022-02-22
Anticipated expiration: 2031-07-31

Abstract

The utility model relates to the technical field of wall-mounted furnaces, in particular to a mixed water tank and a wall-mounted furnace with the same. The mixed water tank and the wall-mounted furnace with the mixed water tank have the advantages that cold water and hot water flow are fully mixed and neutralized in the tank body based on the rotational flow mixing effect, the temperature fluctuation is low, the water outlet is stable, and the bathroom experience of a user can be effectively improved.

Description

Mix water tank and have its hanging stove

Technical Field

The utility model relates to the technical field of wall-mounted furnaces, in particular to a mixed water tank and a wall-mounted furnace with the same.

Background

The existing wall-mounted boiler basically has the functions of heating and bathroom hot water, and is mainly of a machine type with a plate heat exchanger. When the wall-mounted furnace has a bathroom hot water function, cold water enters the plate heat exchanger from a bathroom cold water inlet pipe of the wall-mounted furnace to be subjected to heat exchange and heated to a target temperature, and then flows out of a bathroom hot water outlet pipeline to enter a bathroom hot water terminal. Meanwhile, system water of the wall-mounted furnace is switched to internal circulation, and under the driving of a system water circulating water pump in the wall-mounted furnace body, the system water enters a main heat exchanger in the wall-mounted furnace body through a system water inlet pipeline, absorbs heat generated after gas is combusted by a combustor, enters a plate heat exchanger through a system water outlet pipeline, and exchanges heat with cold water in the plate heat exchanger.

However, in the using process of the bathroom, the process of closing and restarting the wall-mounted furnace occurs during the period, so when the wall-mounted furnace is restarted after being closed in the using process, the wall-mounted furnace is restarted, the wall-mounted furnace is ignited till the normal combustion running state is successfully ignited, the whole process needs to be continuously maintained for 4-6 seconds, during the ignition period, cold water passes through the plate heat exchanger and directly enters a hot water terminal without being heated, and partial hot water is reserved in a pipeline of the previous water terminal, so that the phenomenon of sudden cooling and sudden heating bathroom temperature of 'hot, cold and hot' occurs, and the bathroom comfort of a user is seriously influenced.

In order to solve the uncomfortable problem of hot, cold and hot bathrooms in the using process of the bathrooms, the structure of the traditional bathroom system is improved in the current market, and a constant temperature device is added, wherein the number of the mixed water tanks is increased, the temperature difference between the cold and the hot rooms is reduced as much as possible, and the comfort is improved. If the chinese patent CN201521085968.5 is applied to a water heater, a mixed water tank is arranged in a bathroom hot water outlet pipe, and hot water in the mixed water tank is mixed with part of cold water during a restart period, so as to reduce temperature difference; the Chinese patent CN201920386173.X is applied to a wall-mounted furnace, a buffer water tank is arranged on a bathroom water outlet pipe, so that a bathroom water outlet port and the buffer water tank are communicated with a water outlet end of a plate heat exchanger, and the bathroom water outlet pipe further has the functions of cold-hot water mixing and bathroom water circulation, can preheat the temperature of bathroom pipeline water to reach a set temperature, and can realize zero cold water and improve the comfort when the bathroom water is started. However, in the mixed water tank in the above scheme, when cold water enters the mixed water tank with an equivalent volume, hot water with the equivalent volume is extruded from the mixed water tank and directly enters the bathroom water outlet pipeline to flow into the water using terminal, but cannot be mixed with the incoming cold water for heat exchange, and the residual hot water in the mixed water tank is mixed with the cold water, so that the neutralization ratio of the hot water and the cold water is reduced, the mixing effect of the cold water and the hot water is poor, and the temperature difference fluctuation is large; if the mixing effect of the cold and hot water of the existing mixing water tank needs to be improved, the capacity of the mixing water tank needs to be increased.

SUMMERY OF THE UTILITY MODEL

The utility model aims to overcome the defects in the prior art and provide a mixed water tank and a wall-mounted furnace, which have the advantages of good cold water and hot water mixing effect, stable outlet water temperature and small occupied volume.

In order to solve the technical problems, the utility model adopts the technical scheme that:

the utility model provides a mixed water tank, include the box and with inlet tube and the outlet pipe that the box intercommunication set up, the box includes the cylinder casing and connects in the toper casing of cylinder casing below, the inlet tube install in the outer wall of cylinder casing, and the central line of its delivery port is followed the circumference tangential direction of cylinder casing sets up, the one end of outlet pipe is stretched out the box, the other end stretches into in the cavity of toper casing.

According to the mixed water tank, water flows into the tank body from the water inlet pipe, spirally rotates from top to bottom along the inner wall of the tank body, and flows out along the water outlet pipe after rotating downwards and flowing to the bottom of the tank body; hot water is filled in the box body, the water inlet pipe flows into the cold water, or the cold water is filled in the box body, the water inlet pipe flows into the hot water, and the cold water and the hot water flow generate a vortex effect in the box body in a circular motion manner, so that the stroke of the water flow entering the water inlet pipe in the box body can be prolonged, the vortex mixing effect can be fully utilized, the cold water and the hot water are mixed intensively, the mixing effect of the cold water and the hot water is improved, the mixed water neutralizing effect is improved, and the temperature difference fluctuation is reduced; compared with the existing tank body, the mixing tank achieves the same mixing effect, and the volume occupied by the mixing tank is smaller.

In one embodiment, the cylindrical shell comprises a first cover and a first shell, the conical shell comprises a second shell and a second cover, the first shell, the second shell and the second cover are sequentially connected from top to bottom, the water inlet pipe is installed on the first cover, and the other end of the water outlet pipe extends into the inner side of the second cover.

In one embodiment, the first cover, the first shell, the second cover and the water outlet pipe are coaxially arranged.

In one embodiment, the water heater further comprises a bypass pipe, and the bypass pipe is communicated between the water inlet pipe and the water outlet pipe.

In one embodiment, the pipe diameter of the inlet pipe is larger than the pipe diameter of the bypass pipe.

In one embodiment, the device further comprises a first three-way valve arranged on the top of the first cover, wherein the first three-way valve comprises a main flow channel communicated with the water outlet pipe and a branch flow channel communicated between the bypass pipe and the main flow channel.

In one embodiment, an acute included angle is formed between the axis of the branch flow channel and the axis of the main flow channel, and the diameter dimension of the main flow channel is larger than that of the branch flow channel.

In one embodiment, the first cover top is provided with a mounting part, and the mounting part is provided with a mounting cavity matched with the first three-way valve.

The utility model also provides a wall-mounted furnace, which comprises a cold water inlet pipe, a first heat exchanger, a hot water outlet pipe, a bathroom hot water return pipe, a first circulating water pump and the mixed water tank, wherein the cold water inlet pipe and the hot water outlet pipe are respectively connected with the first heat exchanger, the hot water outlet pipe is communicated with the water inlet pipe, the water outlet pipe is communicated with the bathroom hot water outlet pipe, the bathroom hot water return pipe and the cold water inlet pipe are sequentially communicated, the bathroom hot water outlet pipe is communicated with a water using terminal, and the first circulating water pump is arranged on the bathroom hot water return pipe.

When the wall-mounted furnace is restarted, cold water enters the first heat exchanger through the cold water inlet pipe in a time period from ignition to successful and normal combustion, hot water discharged from the first heat exchanger enters the water inlet pipe of the mixed water tank through the hot water outlet pipe, the hot water spirally rotates from top to bottom along the inner wall of the tank body and flows downwards to the bottom of the tank body, and cold and hot water flows in the mixed water tank circularly move in the tank body to generate a vortex effect. The wall-mounted furnace disclosed by the utility model has the advantages that cold water and hot water flows are fully mixed and neutralized in the box body based on the rotational flow mixing effect, the hot water flowing out from the mixed water tank is mixed with the split cold water in a cold water splitting mode, the temperature fluctuation is low, the water outlet is stable, and the bathroom experience of a user can be effectively improved.

In one embodiment, the heating system further comprises a heating water inlet pipeline, a second circulating water pump, a second heat exchanger, a heating water outlet pipeline and a burner, wherein the heating water inlet pipeline and the heating water outlet pipeline are respectively connected to the second heat exchanger, the burner is located below the second heat exchanger and is connected with a proportional valve, a fan used for discharging combustion smoke is arranged above the second heat exchanger, a second three-way valve is connected between the heating water outlet pipeline and the heat exchanger, and the second circulating water pump is installed on the heating water inlet pipeline.

Compared with the prior art, the utility model has the beneficial effects that:

according to the mixed water tank and the wall-mounted furnace with the same, cold water and hot water flow are fully mixed and neutralized in the tank body based on the rotational flow mixing effect, and the hot water flowing out of the mixed water tank in advance is mixed with the split cold water in a cold water splitting mode, so that the temperature fluctuation is low, the water outlet is stable, and the bathroom experience of a user can be effectively improved. Compared with the existing tank body, the mixing tank achieves the same mixing effect, and the volume occupied by the mixing tank is smaller.

Drawings

FIG. 1 is an exploded view of a mixing tank;

FIG. 2 is a schematic structural view of a mixing tank;

FIG. 3 is a schematic view of the installation of the water inlet pipe and the tank body;

FIG. 4 is a schematic view of a wall-hanging stove;

in the drawings: 100. a mixing water tank; 110. a water inlet pipe; 112. a bypass pipe; 120. a water outlet pipe; 130. a cylindrical shell; 131. a first cover; 132. a first housing; 133. an installation part; 140. a conical housing; 141. a second housing; 142. a second cover; 150. a first three-way valve; 151. a main flow channel; 152. a branch channel; 200. a wall-mounted furnace; 201. a cold water inlet pipe; 202. a first heat exchanger; 203. a hot water outlet pipe; 204. a bathroom hot water outlet pipe; 205. a bathroom hot water return pipe; 206. a first circulating water pump; 207. a heating water inlet pipeline; 208. a second circulating water pump; 209. a second heat exchanger; 210. a heating water outlet pipeline; 211. a burner; 212. a proportional valve; 213. a fan; 214. a second three-way valve.

Detailed Description

The present invention will be further described with reference to the following embodiments. Wherein the showings are for the purpose of illustration only and are shown by way of illustration only and not in actual form, and are not to be construed as limiting the present patent; to better illustrate the embodiments of the present invention, some parts of the drawings may be omitted, enlarged or reduced, and do not represent the size of an actual product; it will be understood by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted.

The same or similar reference numerals in the drawings of the embodiments of the present invention correspond to the same or similar components; in the description of the present invention, it should be understood that if there is an orientation or positional relationship indicated by the terms "upper", "lower", "left", "right", etc. based on the orientation or positional relationship shown in the drawings, it is only for convenience of describing the present invention and simplifying the description, but it is not intended to indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and therefore, the terms describing the positional relationship in the drawings are only used for illustrative purposes and are not to be construed as limiting the present patent, and the specific meaning of the terms may be understood by those skilled in the art according to specific circumstances.

Examples

As shown in fig. 1 to 3, an embodiment of the mixing water tank 100 of the present invention includes a tank body, and a water inlet pipe 110 and a water outlet pipe 120 which are communicated with the tank body, wherein the tank body includes a cylindrical shell 130 and a conical shell 140 connected below the cylindrical shell 130, the water inlet pipe 110 is installed on an outer wall of the cylindrical shell 130, a center line of a water outlet of the water inlet pipe is arranged along a circumferential tangential direction of the cylindrical shell 130, one end of the water outlet pipe 120 extends out of the tank body, and the other end thereof extends into a hollow cavity of the conical shell 140.

In the embodiment, the water flows into the tank body from the water inlet pipe 110, spirally rotates from top to bottom along the inner wall of the tank body, and flows out along the water outlet pipe 120 after rotating downwards and flowing to the bottom of the tank body; hot water is filled in the box body, the water inlet pipe 110 flows into the cold water, or the cold water is filled in the box body, the water inlet pipe 110 flows into the hot water, and the cold water and the hot water flow generate a vortex effect in the box body in a circular motion manner, so that the formation of water flow entering the water inlet pipe 110 in the box body can be prolonged, the vortex mixing effect can be fully utilized, the cold water and the hot water are mixed intensively, the mixing effect of the cold water and the hot water is improved, the water mixing neutralization effect is improved, and the temperature difference fluctuation is reduced; compared with the existing tank body, the same mixing effect is achieved, and the volume occupied by the mixing water tank 100 of the mixing embodiment is smaller.

In one embodiment, the cylindrical housing 130 includes a first cover 131 and a first housing 132, the conical housing 140 includes a second housing 141 and a second cover 142, the first cover 131, the first housing 132, the second housing 141 and the second cover 142 are sequentially connected from top to bottom, the water inlet pipe 110 is installed on the first cover 131, and the other end of the water outlet pipe 120 extends into the second cover 142. The first casing 132 and the second casing 141 may be an integrated structure, and the first cover 131 and the second cover 142 may be opened or closed, so as to facilitate cleaning of the box body and draining of accumulated water in the box body.

In one embodiment, the first cover 131, the first housing 132, the second housing 141, the second cover 142 and the outlet pipe 120 are coaxially disposed. In this embodiment, the water outlet pipe 120 is coaxially disposed with the first cover 131, the first housing 132, the second housing 141, and the second cover 142, so that the water outlet pipe 120 is located at the center of the spiral vortex from top to bottom, which can help to mix cold and hot water more sufficiently.

In one embodiment, a bypass pipe 112 is further included, and the bypass pipe 112 is communicated between the inlet pipe 111 and the outlet pipe 120. The water inlet pipe 110 is disposed in a circumferential tangential direction of the cylindrical housing 130, and the water flowing in from the water inlet pipe 110 spirally rotates from top to bottom, and the rest of the cold water flows out from the bypass pipe 112 and is mixed with the hot water flowing out from the water outlet pipe 120.

In one embodiment, the diameter of the inlet pipe 110 is greater than the diameter of the bypass pipe 112. In this embodiment, cold water enters the mixing tank 100 mainly through the inlet pipe 110, and a small amount of cold water flows into the bypass pipe 112. Of course, it should be noted that the diameters of the inlet pipe 110 and the bypass pipe 112 in this embodiment can be designed according to the required water flow ratio.

In one embodiment, a first three-way valve 150 is installed at the top of the first cover 131, and the first three-way valve 150 includes a main flow passage 151 communicating with the outlet pipe 120 and a branch flow passage 152 communicating between the bypass pipe 112 and the main flow passage 151. The first three-way valve 150 of the present embodiment can sufficiently utilize the hot water extruded from the inside of the mixing tank 100. Specifically, the method comprises the following steps: partial cold water flows to mainstream passageway 151 from inlet tube 110, the hot water that flows from mixing water tank 100 also can flow into mainstream passageway 151, cold and hot water flows mixes the heat transfer in mainstream passageway 151, do not participate in mixing the partial hot water in mixing water tank 100 in the make full use of, thereby can make full use of mix in water tank 100 original whole hot water mix in with, cold and hot water mixing effect is better, the temperature difference is undulant littleer, compare in prior art, reach in the same mixture and effect, the mixed water tank 100 volume capacity of this embodiment is more small and exquisite. And after the subsequent combustor 211 is normally combusted and heated, part of heated hot water is mixed with the mixed and neutralized hot water again through the bypass pipe 112 and the branch passage 152, so that the mixed and neutralized hot water can be quickly restored to the target temperature again, the temperature difference fluctuation time is shortened, and the comfort is higher.

In one embodiment, the axis of the branch flow channel 152 forms an acute included angle with the axis of the main flow channel 151, and the diameter dimension of the main flow channel 151 is greater than the diameter dimension of the branch flow channel 152. The water flow direction of the main flow channel 151 and the branch flow channel 152 tends to be consistent, the smoothness of water flow is guaranteed, the size of the included angle can be determined according to the mixing effect and the smoothness, and the diameter of the main flow channel 151 and the diameter of the branch flow channel 152 are determined according to the flow dividing effect.

In one embodiment, the first cover 131 is provided with a mounting portion 133 at the top, and the mounting portion 133 is provided with a mounting cavity adapted to the first three-way valve 150. Specifically, in this embodiment, first three-way valve 150 may be inserted into the installation cavity, so as to facilitate installation and replacement of first three-way valve 150. Of course, the present invention is not limited to the first three-way valve 150 being mounted by the mounting portion 133, and other connection methods that can connect the first cover 131 and the first three-way valve 150 may be applied to the present invention.

The utility model also provides a wall-mounted boiler 200, which comprises a cold water inlet pipe 201, a first heat exchanger 202, a hot water outlet pipe 203, a bathroom hot water outlet pipe 204, a bathroom hot water return pipe 205, a first circulating water pump 206 and the mixing water tank 100 as before, wherein the cold water inlet pipe 201 and the hot water outlet pipe 203 are respectively connected with the first heat exchanger 202, the hot water outlet pipe 203 is communicated with the water inlet pipe 110, the water outlet pipe 120 is communicated with the bathroom hot water outlet pipe 204, the bathroom hot water return pipe 205 and the cold water inlet pipe 201 are sequentially communicated, the bathroom hot water outlet pipe 204 is communicated with a water using terminal, and the first circulating water pump 206 is arranged on the bathroom hot water return pipe 205, as shown in fig. 4.

In one embodiment, the system further comprises a heating water inlet pipe 207, a second circulating water pump 208, a second heat exchanger 209, a heating water outlet pipe 210 and a burner 211, wherein the heating water inlet pipe 207 and the heating water outlet pipe 210 are respectively connected to the second heat exchanger 209, the burner 211 is located below the second heat exchanger 209, the burner 211 is connected with a proportional valve 212, a fan 213 for discharging combustion flue gas is arranged above the second heat exchanger 209, a second three-way valve 214 is connected between the heating water outlet pipe 210 and the heat exchanger, and the second circulating water pump 208 is installed on the heating water inlet pipe 207. Wherein the second three-way valve 214 is an electronic three-way valve.

The wall-mounted stove 200 of the utility model has the following working principle:

when the temperature of the bathroom water in the bathroom hot water outlet pipe 204 is lower than a set temperature, the wall-mounted furnace 200 enters a bathroom functional state to operate, the electronic three-way valve is switched to a bathroom functional channel, the second circulating water pump 208 is started, the fan 213 is started, the proportional valve 212 is opened, the fuel gas enters the combustor 211 to be combusted and emits heat for the bathroom water of the first heat exchanger 202 to absorb and exchange heat, and the flue gas after the combustion and heat exchange is discharged out of the room under the driving of the fan 213; under the driving of the second circulating water pump 208, cold water enters the first heat exchanger 202 through the heating water inlet pipeline 207 for heating, flows out of the heating water outlet pipeline 210, enters the first heat exchanger 202 through the electronic three-way valve, is subjected to heat absorption and temperature reduction by the bathroom water of the first heat exchanger 202, returns to the second circulating water pump 208, and repeats the above circulation; meanwhile, the first circulating water pump 206 is also started to drive the bathroom hot water return pipe 205 to enter the cold water inlet pipe 201 through the first circulating water pump 206 and flow into the first heat exchanger 202, absorb the heat of the hot water of the first heat exchanger 202 to heat up, flow into the hot water outlet pipe 203 from the first heat exchanger 202, enter the bathroom hot water outlet pipe 204 through the mixed water tank 100 and finally return to the bathroom hot water return pipe 205, and the above circulation is repeated until the bathroom hot water reaches the set temperature. Zero cold water is realized and the temperature of the bathroom water in the mixed water tank 100 is maintained when the bathroom water is started.

When restarting the bathroom after closing in the use, hanging stove 200 will restart, by starting to ignite until the successful normal combustion running state of ignition, whole process need continuously maintain 4 ~ 6 seconds (under the normal ignition state), the cold water in this time quantum gets into first heat exchanger 202 through cold water inlet tube 201, first heat exchanger 202 goes out water and gets into the inlet tube 110 of mixing water tank 100 by hot water outlet pipe 203: the cold water part of the main body enters the mixed water tank 100 from the water inlet pipe 110, the cold water spirally rotates from top to bottom along the inner wall of the tank body, and after the cold water flows downwards to the bottom of the tank body, the cold water and the hot water flow circularly move in the tank body in the mixed water tank 100 to generate a vortex effect, so that the stroke of the water flow entering the water inlet pipe 110 in the tank body can be prolonged, the vortex mixing effect can be fully utilized, the cold water and the hot water are mixed and strengthened, and the cold water and the hot water are fully mixed and neutralized; the rest cold water part flows from the bypass pipe 112 through the branch flow channel 152 to enter the main flow channel 151 and is mixed and neutralized with the hot water flowing out of the mixing water tank 100 with the same volume as the main cold water part entering from the water inlet pipe 110; and then enters the water terminal of the bathroom hot water through the bathroom hot water outlet pipe 204.

Until the cold water entering subsequently is heated by the first heat exchanger 202 and then becomes hot water, part of the hot water passing through the bypass pipe 112 and the branch flow channel 152 are mixed with the mixed and neutralized hot water flowing out from the mixed water tank 100 in the main flow channel 151, and the mixed and neutralized hot water is quickly restored to the target temperature, so that the temperature difference fluctuation time is shortened, and the comfort is higher.

In the detailed description of the embodiments, various technical features may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

It should be understood that the above-described embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.

Claims

1. A mixing water tank (100) is characterized by comprising a tank body, a water inlet pipe (110) and a water outlet pipe (120) which are communicated with the tank body, wherein the tank body comprises a cylindrical shell (130) and a conical shell (140) connected below the cylindrical shell (130); the water inlet pipe (110) is installed on the outer wall of the cylindrical shell (130), the central line of a water outlet of the water inlet pipe is arranged along the circumferential tangential direction of the cylindrical shell (130), one end of the water outlet pipe (120) extends out of the box body, and the other end of the water outlet pipe extends into the hollow cavity of the conical shell (140).

2. The mixing water tank (100) of claim 1, wherein the cylindrical housing (130) comprises a first cover (131) and a first housing (132), the conical housing (140) comprises a second housing (141) and a second cover (142), the first cover (131), the first housing (132), the second housing (141) and the second cover (142) are sequentially connected from top to bottom, the water inlet pipe (110) is installed on the first cover (131), and the other end of the water outlet pipe (120) extends into the inner side of the second cover (142).

3. The mixing tank (100) of claim 2, wherein the first cover (131), the first housing (132), the second housing (141), the second cover (142) and the outlet pipe (120) are coaxially arranged.

4. The mixing tank (100) of claim 2 further comprising a bypass pipe (112), the bypass pipe (112) communicating between the inlet pipe (110) and the outlet pipe (120).

5. The mixing tank (100) of claim 4, characterized in that the pipe diameter of the inlet pipe (110) is larger than the pipe diameter of the bypass pipe (112).

6. The mixing tank (100) of claim 4, further comprising a first three-way valve (150) installed at the top of the first cover (131), the first three-way valve (150) including a main flow passage (151) communicating with the outlet pipe (120) and a branch flow passage (152) communicating between the bypass pipe (112) and the main flow passage (151).

7. The mixing tank (100) of claim 6, characterized in that the axis of the branch channel (152) forms an acute angle with the axis of the main flow channel (151), the diameter dimension of the main flow channel (151) being larger than the diameter dimension of the branch channel (152).

8. The mixing tank (100) of claim 6, wherein the first cover (131) is provided at the top with a mounting part (133), and the mounting part (133) is provided with a mounting cavity adapted with the first three-way valve (150).

9. A wall hanging stove (200) is characterized by comprising a cold water inlet pipe (201), a first heat exchanger (202), a hot water outlet pipe (203), a bathroom hot water outlet pipe (204), a bathroom hot water return pipe (205), a first circulating water pump (206) and the mixed water tank (100) as claimed in any one of claims 1 to 8, wherein the cold water inlet pipe (201) and the hot water outlet pipe (203) are respectively connected with the first heat exchanger (202), the hot water outlet pipe (203) is communicated with the water inlet pipe (110), the water outlet pipe (120) is communicated with the bathroom hot water outlet pipe (204), the bathroom hot water return pipe (205) and the cold water inlet pipe (201) are sequentially communicated, the bathroom hot water outlet pipe (204) is communicated with a water terminal, and the first circulating water pump (206) is arranged on the bathroom hot water return pipe (205).

10. The hanging stove (200) according to claim 9, further comprising a heating water inlet pipe (207), a second circulating water pump (208), a second heat exchanger (209), a heating water outlet pipe (210) and a burner (211), wherein the heating water inlet pipe (207) and the heating water outlet pipe (210) are respectively connected to the second heat exchanger (209), the burner (211) is located below the second heat exchanger (209), the burner (211) is connected to a proportional valve (212), a fan (213) for discharging combustion flue gas is arranged above the second heat exchanger (209), a second three-way valve (214) is connected between the heating water outlet pipe (210) and the heat exchanger, and the second circulating water pump (208) is installed on the heating water inlet pipe (207).