CN219572063U

CN219572063U - Hot water system

Info

Publication number: CN219572063U
Application number: CN202320663992.0U
Authority: CN
Inventors: 赵张宁; 朱文珺; 孙陈欢; 张亚楠
Original assignee: Bosch Thermotechnology Shanghai Co Ltd
Current assignee: Bosch Thermotechnology Shanghai Co Ltd
Priority date: 2023-03-29
Filing date: 2023-03-29
Publication date: 2023-08-22
Anticipated expiration: 2033-03-29

Abstract

The utility model provides a hot water system. The hot water system includes: a water heating apparatus, the water heating apparatus comprising: a source water inlet; a domestic water outlet adapted to be connected to one or more domestic water ends; a heating water inlet and a heating water outlet adapted to be connected to a heating water circuit including a heating tip; wherein the hot water system further comprises a thermal coupling region in which a first pipe section of the first pipe connected to the domestic water outlet and a second pipe section of the second pipe connected to the heating water outlet are thermally coupled. The hot water system according to the present utility model preheats domestic water by means of heating water, thereby enabling the hot water system to rapidly supply hot water without excessively increasing energy consumption.

Description

Hot water system

Technical Field

The present utility model relates to the field of water heating devices, and more particularly to a water heating system including a thermally coupled region.

Background

In order to obtain instant hot water, users often additionally arrange electric water heating devices such as kitchen treasures and the like outside the water heater or the hot water boiler. Some hot water systems with zero cold water function can also provide instant hot water, which mainly comprises a circulating domestic water pipeline and a circulating driving pump, and heats the domestic water in the domestic water pipeline according to certain logic, so that the instant hot water can be provided. But such a system is more energy consuming. In addition, for the decorated users, the engineering of adding the circulating living water pipeline and the circulating driving pump is large, and the cost, the time and the labor are high.

Disclosure of Invention

The present utility model aims to solve or at least alleviate the problems of the prior art.

A water heating system, comprising:

a water heating apparatus, the water heating apparatus comprising:

a source water inlet;

a domestic water outlet for connection to one or more domestic water terminals;

a heating water inlet and a heating water outlet for connection to a heating water circuit including a heating tip;

wherein the hot water system further comprises a thermal coupling region in which a first pipe section of the first pipe connected to the domestic water outlet and a second pipe section of the second pipe connected to the heating water outlet are thermally coupled.

Optionally, in an embodiment of the hot water system, the hot water system further comprises a first bypass branch in parallel with the first pipe section of the first pipe and/or a second bypass branch in parallel with the second pipe section of the second pipe, such that a thermal coupling between the flow from the domestic water outlet and the heating water outlet can be relieved.

Optionally, in an embodiment of the hot water system, the first bypass branch is connected to the first pipe through one or two three-way valves; and/or the second bypass branch is connected to the second conduit by one or two three-way valves; or alternatively

Control valves are respectively arranged on the first pipeline and the first bypass branch; and/or control valves are respectively arranged on the second pipeline and the second bypass branch.

Optionally, in an embodiment of the hot water system, the hot water system is configured to decouple the thermal coupling when the heating water circuit is not operating or a thermal coupling zone fails.

Optionally, in an embodiment of the water heating system, the water heating system is configured to decouple the thermal coupling when the raw water flow path outlet water reaches a first time.

Optionally, in an embodiment of the hot water system, the hot water system further comprises: a heating water circuit including a drive pump and a heating end, the heating end being a water collector or radiator of a floor heating system, the second pipe section being between the heating water outlet and the heating end, and the domestic water flow path being a unidirectional pipe extending from the domestic water outlet to one or more domestic water ends.

Optionally, in an embodiment of the hot water system, in the thermal coupling zone, one of the first and second pipe sections is a straight pipe section and the other of the first and second pipe sections is a spiral pipe section and is wound on the straight pipe section.

Optionally, in an embodiment of the hot water system, in the thermal coupling zone, the first pipe section and the second pipe section are both spiral pipe sections and are wound together in a staggered manner.

Optionally, in an embodiment of the hot water system, in the thermal coupling zone, the first pipe section and the second pipe section are two straight pipe sections arranged adjacently side by side and fastened together by a pipe clamp, or the first pipe section and the second pipe section are concentric pipes.

Optionally, in an embodiment of the hot water system, the thermal coupling zone is formed as a prefabricated module, either alone or together with one or more valves.

The hot water system according to the present utility model preheats domestic water by means of heating water, thereby enabling the hot water system to rapidly supply hot water without substantially increasing energy consumption of the hot water system.

Drawings

The present disclosure will become more readily understood with reference to the accompanying drawings. As will be readily appreciated by those skilled in the art: the drawings are for illustrative purposes only and are not intended to limit the scope of the present utility model. Moreover, like numerals in the figures are used to designate like parts, wherein:

FIG. 1 is a schematic system diagram including a hot water system according to an embodiment of the present utility model;

FIG. 2 is a system schematic diagram including a water heating system according to an alternative embodiment of the present utility model; and

fig. 3-5 illustrate thermal coupling structures according to various embodiments.

Detailed Description

Referring to fig. 1, the hot water system includes: the water heating device 4, the water heating device 4 includes: a source water inlet 2; a domestic water outlet 31, the domestic water outlet 31 being adapted to be connected to one or more domestic water ends 32, 33; a heating water inlet 54 and a heating water outlet 51, the heating water inlet 54 and the heating water outlet 51 being adapted to be connected to a heating water circuit 5 including a heating tip 52; the hot water system further comprises a thermal coupling zone 8, in which thermal coupling zone 8 a first line section 30 of the first line 39 connected to the domestic water outlet 31 and a second line section 50 of the second line 59 connected to the heating water outlet 51 are thermally coupled, thereby allowing water flowing out of the domestic water outlet 31 to be preheated in the thermal coupling zone 8 by hot water in the heating water circuit 5 before reaching the domestic water ends 32, 33. The configuration of the thermal coupling zone 8 allows for the exchange of heat between the fluids within the first and second conduit sections 30, 50, the specific configuration of which will be described in more detail below. Based on the above structure, heated domestic water can be obtained more quickly at the domestic water terminals 32, 33 without separately providing a domestic water circulation circuit, and without substantially increasing additional power consumption.

The water heating device 4 may be a gas water heating device, so it may further comprise a gas inlet 1. Alternatively, the water heating device 4 may be a water heating device of any other energy source. In some embodiments, as shown in fig. 1, the hot water system further includes a second bypass branch 69 in parallel with the second pipe section 50 of the second pipe 59. In this embodiment, the second bypass branch 69 is connected to the second line 59 upstream and downstream of the second line section 50 by a first three-way valve 61 and a second three-way valve 62. By controlling the positions of the first three-way valve 61 and the second three-way valve 62, it is possible to control whether the heating circulating water flowing out from the heating water outlet 51 passes through the thermal coupling region 8, whereby the fluid flowing out from the domestic water outlet 31 and the heating water outlet 51 can be selectively thermally coupled or decoupled. More specifically, in the case shown in fig. 1, the a-c port of the first three-way valve 61 is communicated, and the e-f port of the second three-way valve 62 is communicated such that the heating circulation water flowing out from the heating water outlet 51 flows through the thermal coupling region 8, and when the first three-way valve 61 is switched to the a-b port communication and the second three-way valve 62 is switched to the d-f port communication, the heating circulation water flowing out from the heating water outlet 51 flows through the second bypass branch 69 to bypass the thermal coupling region 8, thereby accomplishing the decoupling of the heat. In some embodiments, the same function may be achieved by providing only the first three-way valve 61 or the second three-way valve 62. For the purpose of decoupling the thermal coupling, the hot water system alternatively (as shown in fig. 2) or additionally comprises a first bypass branch 6 in parallel with the first line section 30 of the first line 39. The first bypass branch 6 may be connected upstream and downstream of the first pipe section 30 using one or two three-way valves as shown in fig. 1. Alternatively, as shown in fig. 2, control valves 63, 64 may be provided on the first piping 39 and the first bypass branch 6, respectively, to selectively thermally couple or decouple the fluid flowing from the domestic water outlet 31 and the heating water outlet 51. For example, when the thermal coupling is required, the first control valve 63 is opened, the second control valve 64 is closed, the water flowing out of the domestic water outlet 31 passes through the thermal coupling region, when the thermal coupling is required, the second control valve 64 is opened, the first control valve 63 is closed, and the water flowing out of the domestic water outlet 31 passes through the first bypass branch 6 and bypasses the thermal coupling region 8.

The three-way valves 61, 62 and the control valves 63, 64 as described above may be connected to a controller of the hot water system so that the thermal coupling or decoupling is controlled by the controller. The hot water system may be configured to decouple when the heating water circuit 5 is not operating, such as during warmer seasons when the heating water circuit 5 is not on. In some embodiments, the hot water system is configured to decouple the thermal coupling when the water exiting the domestic water circuit 3 reaches a first time, since the hot water device 4 delivers heated water to the domestic water circuit 3 when there is a demand for domestic water, the domestic water circuit 3 reaches a predetermined temperature after a certain time, which may be higher than the temperature of the heating water circuit 5, at which time the water exiting temperature at the end of the domestic water will be reduced if the thermal coupling is continued, and the hot water system is configured to decouple the thermal coupling when the water exiting the domestic water circuit 3 reaches the first time. The first time may be a fixed value, for example, between 30s and 120s, and may also depend on a number of factors, such as the length of the piping from the end of the domestic water 32, 33 to the domestic water outlet 31, the ambient temperature, the set hot water temperature, etc. In some embodiments, the hot water system may be configured to decouple upon failure of the thermal coupling zone 8, at which time if both the first bypass leg 6 and the second bypass leg 69 are present, then neither the fluid flowing from the domestic water outlet 31 nor the heating water outlet 51 may pass through the thermal coupling zone 8, at which time the operation of the entire hot water system is not affected, and repairs may be made to the thermal coupling zone 8. In some embodiments, the thermal coupling zone 8 alone or the thermal coupling zone 8 and one or both of the three-way valves 61, 62 or the control valves 63, 64 as a whole may be prefabricated modules, which may or may not include a housing, for example. Thus, in the configuration of the double bypass branch described above, the modular thermal coupling zone 8 can be disassembled for maintenance without affecting the normal operation of the hot water system. In addition, the modular thermal coupling zone 8 also facilitates retrofitting of the finished user's water heating apparatus.

In some embodiments, the heating water circuit 5 and the domestic water flow path 3 are also included in a hot water system, the heating water circuit 5 including a drive pump 53 and a heating tip 52, the heating tip 52 being, for example, a water collector or radiator of a floor heating system. The second pipe 59 is a pipe from the heating water outlet 51 to the heating tip 52, and thus the thermal coupling region 8 is provided between the heating water outlet 51 and the heating tip 52. The domestic water flow path 3 is a one-way pipe (excluding a circulation pipe) extending from the domestic water outlet 31 to one or more domestic water ends 32, 33, and when there are a plurality of domestic water ends, as shown in fig. 2, the domestic water flow path 3 includes a main flow path 301 connected to the domestic water outlet 31 of the water heating apparatus 4 and a branch path 302 extending from the main flow path 301 to the respective domestic water ends 32, 33, and the thermal coupling region 8 is preferably provided at the main flow path 301.

With continued reference to fig. 3-5, some embodiments of thermal coupling regions are shown. As shown in fig. 3, in some embodiments, one of the first and second pipe sections 30, 50 is a straight pipe section and the other of the first and second pipe sections 30, 50 is a helical pipe section and is wound on the straight pipe section. In the illustrated embodiment, the first conduit section 30 is a straight conduit section and the second conduit section 50 is a coiled conduit section, alternatively both of which may be exchanged. The coil section may be a flexible tubing to facilitate winding, for example, around a straight tubing section that has been fixedly installed, or alternatively a preformed rigid tubing and over the straight tubing section. With continued reference to fig. 4, the first pipe section 30 and the second pipe section 50 may be spiral pipe sections and are alternately wound together, which may increase the heat exchange efficiency of the heating pipe and the domestic hot water pipe and reduce the overall outer diameter of the thermal coupling region 8. With continued reference to fig. 5, the first and second pipe sections 30, 50 may be two straight pipe sections arranged adjacent one another and secured together by a pipe clamp 9. In some embodiments, the thermal coupling region 8 may have other suitable structures, such as concentric tubes or the like. In some embodiments, an insulating enclosure or the like may be provided outside the thermal coupling region 8.

The above-described specific embodiments of the present utility model are provided only for the purpose of more clearly describing the principles of the present utility model, in which individual components are clearly shown or described so as to make the principles of the present utility model more easily understood. Various modifications or alterations of this utility model may be readily made by those skilled in the art without departing from the scope of this utility model. It is to be understood that such modifications and variations are intended to be included within the scope of the present utility model.

Claims

1. A water heating system, comprising:

a water heating device (4), the water heating device (4) comprising:

a source water inlet (2);

-a domestic water outlet (31), the domestic water outlet (31) being adapted to be connected to one or more domestic water terminals (32, 33);

a heating water inlet (54) and a heating water outlet (51), the heating water inlet (54) and the heating water outlet (51) being adapted to be connected to a heating water circuit (5) comprising a heating tip (52);

characterized in that the hot water system further comprises a thermal coupling zone (8), in which thermal coupling zone (8) a first pipe section (30) of a first pipe (39) connected to the domestic water outlet (31) and a second pipe section (50) of a second pipe (59) connected to the heating water outlet (51) are thermally coupled.

2. The hot water system according to claim 1, characterized in that it further comprises a first bypass branch (6) in parallel with the first pipe section (30) of the first pipe (39) and/or a second bypass branch (69) in parallel with the second pipe section (50) of the second pipe (59) such that a thermal coupling between the fluid flowing out from the domestic water outlet (31) and from the heating water outlet (51) can be relieved.

3. The hot water system according to claim 2, characterized in that the first bypass branch (6) is connected to the first pipe (39) by one or two three-way valves; and/or the second bypass branch (69) is connected to the second conduit (59) by one or two three-way valves (61, 62); or alternatively

Control valves (63, 64) are respectively arranged on the first pipeline (39) and the first bypass branch (6); and/or control valves are respectively arranged on the second pipeline (59) and the second bypass branch (69).

4. The hot water system according to claim 2, characterized in that the hot water system is configured to decouple the thermal coupling when the heating water circuit (5) is not operating or a thermal coupling zone (8) fails.

5. The water heating system according to claim 2, wherein the water heating system is configured to decouple the thermal coupling when the service water flow path (3) has been discharged for a first time.

6. The water heating system of claim 1, further comprising: heating water circuit (5) and domestic water flow path (3), heating water circuit (5) include drive pump (53) and heating end (52), heating end (52) are the collector or radiator of ground heating system, second pipeline section (50) be in heating water export (51) with heating end (52) between, and domestic water flow path (3) are the unidirectional pipeline that extends to one or more domestic water end (32, 33) from domestic water export (31).

7. The water heating system according to any one of claims 1-6, wherein in the thermal coupling zone, one of the first and second pipe sections (30, 50) is a straight pipe section and the other of the first and second pipe sections (30, 50) is a spiral pipe section and is wound on the straight pipe section.

8. The water heating system according to any one of claims 1-6, wherein in the thermally coupled region, the first and second pipe sections (30, 50) are each helical pipe sections and are wound together in an interleaved manner.

9. The water heating system according to any one of claims 1-6, characterized in that in the thermally coupled region the first pipe section (30) and the second pipe section (50) are two straight pipe sections arranged adjacently side by side and fastened together by a pipe clamp, or the first pipe section (30) and the second pipe section (50) are concentric pipes.

10. Hot water system according to any one of claims 1-6, characterized in that the thermal coupling zone (8) is formed as a prefabricated module, either alone or together with one or more valves.