Water recovery equipment capable of recovering and reutilizing cold water of pipe network and water utilization system
By designing water storage devices and valve-controlled water recycling equipment, the problems of cold water waste and high energy consumption in hot water pipe networks have been solved, realizing the recycling and reuse of cold water, saving water resources and reducing energy consumption.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SICHUAN YULIN HYOYUAN NEW ENERGY TECH CO LTD
- Filing Date
- 2025-07-02
- Publication Date
- 2026-05-19
AI Technical Summary
In civil buildings, hot water pipes in branch pipes become cold water after being unused for a long time, resulting in water waste and increased energy consumption. Existing water-saving methods have problems such as high system cost or high power consumption.
Design a water recycling device for recyclable cold water from a pipe network, including a water storage container, a first valve, and a pump. The valve controls the connection between the hot water pipe network and the water storage chamber, and the pump pumps the liquid in the water storage chamber to the water-using appliances or the cold water pipe network, thereby realizing the storage and reuse of cold water.
It effectively saves water resources, reduces energy consumption, and realizes the recycling and reuse of cold water at the end of the hot water pipe network, thereby reducing water waste and energy consumption.
Smart Images
Figure CN224259498U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of water-use equipment technology, and more specifically, to a water recycling device that can recycle and reuse cold water from a pipe network. Furthermore, this utility model also relates to a water-use system including the aforementioned water recycling device. Background Technology
[0002] Water resources are finite, and society widely advocates energy conservation and water conservation. Water conservation is about improving the utilization rate of water resources while meeting users' requirements for water quality, quantity, pressure and temperature.
[0003] Currently, hot water pipe networks in residential buildings are usually connected to water heaters or other water-using equipment through branch pipes entering the house. However, if the water is not used for a long time, the hot water in the branch pipe will gradually turn into cold water due to heat dissipation. When water is used again, it is generally necessary to drain the cold water in the branch pipe, resulting in serious waste.
[0004] To conserve water resources, current solutions include installing self-regulating electric heat tracing on the branch pipes to keep the water in the branch pipes warm, or circulating the cold water in the branch pipes. However, directly setting up hot water circulation in the branch pipes would increase system costs and significantly increase heat dissipation energy consumption, especially since residential buildings do not have the conditions to install branch pipe circulation. On the other hand, installing electric heat tracing at the end of the branch pipes would greatly increase electricity consumption.
[0005] In conclusion, how to reduce energy consumption while conserving water resources stored in branch pipes in civil buildings is a problem that urgently needs to be solved by those skilled in the art. Utility Model Content
[0006] In view of this, the purpose of this utility model is to provide a water recycling device that can recycle cold water from the pipeline network and reuse it. This water recycling device can effectively save water resources while requiring low energy consumption.
[0007] Another objective of this invention is to provide a water system that includes the aforementioned water recycling equipment.
[0008] To achieve the above objectives, this utility model provides the following technical solution:
[0009] A water recycling device for recovering and reusing cold water from a pipe network includes:
[0010] A water storage device, the water storage chamber of which is used to store cooling liquid;
[0011] The first valve enables the water storage chamber to be connected to or disconnected from the hot water pipe network.
[0012] A pump, the inlet of which is conductively connected to the water storage chamber;
[0013] The second valve has a first inlet connected to the outlet of the pump, a second inlet connected to the cold water pipe network, and an outlet connected to the water-using appliance. The second valve enables the pump and the cold water pipe network to be selectively connected to the water-using appliance.
[0014] Preferably, the first valve is a temperature-controlled solenoid valve.
[0015] Preferably, the pipeline connected to the outlet of the second valve is equipped with a flow switch and / or a pressure switch.
[0016] Preferably, the second valve is a two-position three-way solenoid valve.
[0017] Preferably, a throttle valve is provided on the inlet side of the first valve.
[0018] Preferably, the water reservoir also has an installation cavity, which is independent of the water storage cavity. The pump is located in the water storage cavity, and the first valve and the second valve are both located in the installation cavity.
[0019] Preferably, the first valve is connected to the first end of the first water inlet pipe, the second end of the first water inlet pipe is connected to an opening of the first connector, and the first connector has another opening for connecting to the hot water pipe network.
[0020] Preferably, the second inlet of the second valve is connected to the first end of the second water inlet pipe, the second end of the second water inlet pipe is connected to one opening of the second connector, and the other opening of the second connector is used to connect to the cold water pipe network.
[0021] Preferably, the water storage device further includes a mixing chamber, and the mixing chamber, the mounting chamber, and the water storage chamber are all independent of each other;
[0022] The first inlet of the mixing chamber is used to connect to the hot water pipe network, the second inlet is used to connect to the outlet of the second valve, and the outlet is used to connect to the water appliance.
[0023] A water supply system includes water-using appliances and a water recycling device as described in any of the preceding claims, which can recycle cold water from the pipe network and reuse it. The water-using appliances are connected to the outlet of the second valve and can be conductively connected to the hot water pipe network.
[0024] The water recycling device provided by this utility model, which can recycle and reuse cold water from a pipe network, has a hollow water storage container with a storage chamber for storing cooling liquid. The outlet of the first valve is connected to the water storage container, and the inlet is connected to the hot water pipe network during use. The first valve can control the flow of liquid from the hot water pipe network into or out of the water storage container. The inlet of the pump is connected to the water storage chamber, and the outlet is connected to the first inlet of the second valve. During use, the second inlet of the second valve is connected to the cold water pipe network, and the outlet is connected to the water-using appliance. By adjusting the second valve, the pump can be connected to the water-using appliance, allowing the liquid in the water storage container to be pumped to the water-using appliance. Alternatively, the cold water pipe network can be connected to the water-using appliance, allowing the liquid in the cold water pipe network to flow to the water-using appliance.
[0025] The beneficial effect is that, during use, the second inlet of the second valve is connected to the cold water pipe network, the hot water pipe network is connected to the inlet of the first valve, and the water-using appliances are connected to the hot water pipe network. The first valve is adjusted to connect the hot water pipe network to the water storage chamber, so that the liquid in the hot water pipe network can flow into the water storage chamber. When the temperature of the liquid flowing into the water storage chamber reaches the preset requirement, the first valve is controlled to block the hot water pipe network from the water storage chamber, so that the liquid discharged from the hot water pipe network can flow to the water-using appliances. In order to regulate the temperature of the liquid output from the water-using appliances, the second valve is adjusted to connect the water storage chamber to the water-using appliances, and the pump is started to pump the cooling liquid stored in the water storage chamber to the water-using appliances. Alternatively, the second valve is adjusted to connect the cold water pipe network to the water-using appliances, so that the liquid in the cold water pipe network flows to the water-using appliances.
[0026] This water recycling equipment can transport the cooling liquid at the end of the hot water pipe network to the storage chamber for storage, and then pump it out to water appliances when needed, effectively saving water resources. At the same time, the water recycling equipment requires low energy consumption to operate. Attached Figure Description
[0027] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.
[0028] Figure 1 A schematic diagram of a specific embodiment provided by this utility model;
[0029] Figure 2 Another schematic diagram of a specific embodiment provided by this utility model;
[0030] Figure 3 This is another schematic diagram of a specific embodiment provided by the present utility model.
[0031] Figure label:
[0032] 1-Water storage device; 15-Water storage chamber; 16-Installation chamber; 17-Mixing chamber; 2-First valve; 3-Pump; 4-Second valve; 5-Flow switch; 6-Pressure switch; 7-Throttle valve; 8-First inlet pipe; 9-First connector; 10-Second inlet pipe; 11-Second connector;
[0033] 12-Water appliances; 13-Hot water pipe network; 14-Cold water pipe network; 18-Third water inlet pipe. Detailed Implementation
[0034] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0035] The core of this invention is to provide a water recycling device that can recycle and reuse cold water from a pipe network. This water recycling device effectively saves water resources while requiring low energy consumption. Another core aspect of this invention is to provide a water system that includes the aforementioned water recycling device.
[0036] Please refer to Figure 1 This utility model provides a water recycling device that can recycle cold water from a pipeline network and reuse it, including a water storage device 1, a first valve 2, a pump 3, and a second valve 4.
[0037] The water storage chamber 15 of the water storage device 1 is used to store cooling liquid; the first valve 2 can connect or disconnect the water storage chamber 15 from the hot water pipe network 13; the inlet of the pump 3 is connected to the water storage chamber 15; the first inlet of the second valve 4 is connected to the outlet of the pump 3, the second inlet is used to connect to the cold water pipe network 14, and the outlet is used to connect to the water-using appliance 12. The second valve 4 allows the pump 3 and the cold water pipe network 14 to selectively connect to the water-using appliance 12.
[0038] like Figure 1 and Figure 2As shown, the water storage device 1 has a hollow structure, and its water storage chamber 15 is used to store cooling liquid. The outlet of the first valve 2 is connected to the water storage device 1, and the inlet is connected to the hot water pipe network 13 when in use. The first valve 2 can control the flow of liquid in the hot water pipe network 13 into or out of the water storage device 1. The inlet of the pump 3 is connected to the water storage chamber 15, and the outlet is connected to the first inlet of the second valve 4. When in use, the second inlet of the second valve 4 is connected to the cold water pipe network 14, and the outlet is connected to the water appliance 12. By adjusting the second valve 4, the pump 3 is connected to the water appliance 12, so that the liquid in the water storage device 1 can be pumped to the water appliance 12. Alternatively, the cold water pipe network 14 is connected to the water appliance 12, so that the liquid in the cold water pipe network 14 can flow to the water appliance 12.
[0039] It should be noted that the type of the second valve 4 is not limited, as long as it can fulfill the above functions. For example, the second valve 4 can be a two-position three-way valve. The first inlet of the second valve 4 is connected to the outlet of the pump 3, the second inlet is used to connect to the cold water pipe network 14, and the outlet is used to connect to the water appliance 12. In use, the second valve 4 is adjusted to the first working position to connect the pump 3 and the water appliance 12, so that the liquid pumped by the pump 3 from the water storage chamber 15 can be delivered to the water appliance 12. Adjusting the second valve 4 to the second working position to connect the cold water pipe network 14 and the water appliance 12, so that the liquid in the cold water pipe network 14 can flow into the water appliance. In 12, or, the second valve 4 includes a first switching valve and a second switching valve connected in parallel. The outlets of both the first and second switching valves are used to connect to the water appliance 12, while the inlet of the first switching valve is connected to the outlet of the pump 3, and the inlet of the second switching valve is used to connect to the cold water pipe network 14. In use, the outlets of both the first and second switching valves are connected to the water appliance 12, the first switching valve is opened and the second switching valve is closed, and the pump 3 is started. Then, the cooling liquid stored in the water storage chamber 15 can be extracted and transported to the water appliance 12. And by closing the first switching valve and opening the second switching valve, the liquid in the cold water pipe network 14 can be transported to the water appliance 12.
[0040] It should also be noted that the type of the first valve 2 is not limited, as long as it can meet the above functions. For example, the first valve 2 can be an on / off valve. The water recovery equipment also includes two branch pipes, namely the first inlet pipe 8 and the third inlet pipe 18. The first inlet pipe 8 is used to connect the inlet of the first valve 2 and the hot water pipe network 13, and the third inlet pipe 18 is used to connect the water appliance 12 and the hot water pipe network 13. Figure 1As shown, in use, when the first valve 2 is closed, liquid in the hot water pipe network 13 can flow into the water appliance 12; when the first valve 2 is opened, liquid in the hot water pipe network 13 can flow into the water storage chamber 15. Alternatively, the first valve 2 can be a two-position three-way valve, with its first outlet connected to the water storage chamber 15, its second outlet connected to the water appliance 12, and its inlet connected to the hot water pipe network 13. Figure 3 As shown, when in use, the first valve 2 is adjusted to the first working position to connect the hot water pipe network 13 with the water storage chamber 15, so that the liquid in the hot water pipe network 13 can flow into the water storage chamber 15. When the first valve 2 is adjusted to the second working position to connect the hot water pipe network 13 with the water appliance 12, the liquid in the hot water pipe network 13 cannot flow into the water storage chamber 15, but can flow into the water appliance 12.
[0041] In use, the second inlet of the second valve 4 is connected to the cold water pipe network 14, the hot water pipe network 13 is connected to the inlet of the first valve 2, and the water appliance 12 is connected to the hot water pipe network 13. The first valve 2 is adjusted to connect the hot water pipe network 13 to the water storage chamber 15, so that the liquid in the hot water pipe network 13 can flow into the water storage chamber 15. When the temperature of the liquid flowing into the water storage chamber 15 reaches the preset requirement, the first valve 2 is controlled to block the connection between the hot water pipe network 13 and the water storage chamber 15, so that the liquid discharged from the hot water pipe network 13 can flow to the water appliance 12. In order to control the temperature of the liquid output from the water appliance 12, the second valve 4 is adjusted to connect the water storage chamber 15 to the water appliance 12, and the pump 3 is started to pump the cooling liquid stored in the water storage chamber 15 to the water appliance 12. Alternatively, the second valve 4 is adjusted to connect the cold water pipe network 14 to the water appliance 12, so that the liquid in the cold water pipe network 14 flows to the water appliance 12.
[0042] This water recycling device can transport the cooling liquid at the end of the hot water pipe network 13 to the water storage chamber 15 for storage, and then pump it out to the water-using appliance 12 when needed, effectively saving water resources. At the same time, the water recycling device requires low energy consumption to operate.
[0043] Based on the above embodiment, the first valve 2 is a temperature-controlled solenoid valve. The first valve 2 can detect the liquid flowing through it. Before water is used, the first valve 2 is adjusted to connect the hot water pipe network 13 with the water storage chamber 15. The liquid discharged from the hot water pipe network 13 can flow into the water storage chamber 15 to store the cooling liquid at the end of the hot water pipe network 13. After the liquid discharged from the hot water pipe network 13 reaches the preset temperature, the first valve 2 will automatically adjust to block the connection between the hot water pipe network 13 and the water storage chamber 15, so that the liquid discharged from the hot water pipe network 13 flows into the water-using appliance 12. With this setting, the water recycling equipment has a high degree of automation.
[0044] Based on the above embodiment, the pipeline connected to the outlet of the second valve 4 is equipped with a flow switch 5 and / or a pressure switch 6, such as... Figure 1 As shown, with this configuration, the flow rate and / or pressure during the discharge of cold water through the second valve 4 can be detected by the flow switch 5 and the pressure switch 6, so as to control the water recovery device. It can also detect the flow rate and / or pressure when the liquid is pumped out of the water storage chamber 15 by the pump 3, so as to issue an alarm when the liquid in the water storage chamber 15 is drained or the pump 3 malfunctions, thereby controlling the pump 3 to stop as soon as possible.
[0045] Based on the above embodiment, the second valve 4 is a two-position three-way solenoid valve. With this configuration, the water recycling equipment has a simple structure and is conducive to further improving the automation level of the water recycling equipment.
[0046] Based on the above embodiment, a throttle valve 7 is provided on the inlet side of the first valve 2, such as... Figure 1 and Figure 2 As shown, when in use, the inlet of the throttle valve 7 can be connected to the hot water pipe network 13. This setting can control the liquid flow rate and pipe pressure flowing to the water storage chamber 15.
[0047] Based on the above embodiment, the water storage device also has an installation cavity 16, which is independent of the water storage cavity 15. The pump 3 is located in the water storage cavity 15, and the first valve 2 and the second valve 4 are both located in the installation cavity 16.
[0048] In this example, such as Figure 1 As shown, a blocking structure is installed inside the water storage device 1. The blocking structure seals with the inner wall of the water storage device 1 to divide the inner cavity of the water storage device 1 into two independent parts, namely the water storage cavity 15 and the installation cavity 16. The first valve 2, the second valve 4, and other structures are installed in the installation cavity 16. The outlet of the first valve 2 is connected to the water storage cavity 15, so the liquid in the hot water pipe network 13 can flow into the water storage cavity 15 through the first valve 2. The pump 3 is installed in the water storage cavity 15, so the cooling liquid stored in the water storage cavity 15 can flow into the pump 3. The first inlet of the second valve 4 is connected to the outlet of the pump 3, so the liquid drawn by the pump 3 from the water storage cavity 15 can be discharged through the second valve 4. With this configuration, the water recovery equipment has a strong overall structure and is easy to install and use.
[0049] Furthermore, both the pump 3 and the mounting cavity 16 are located at the first end of the water storage device 1 to facilitate the assembly of the water recycling equipment. Correspondingly, the water storage device 1 includes a barrel body and a barrel cover. During assembly, a blocking structure is set on the right side of the barrel body to separate the water storage cavity 15 and the mounting cavity 16 inside the barrel body. Then, the first valve 2, the second valve 4, and other devices are connected and installed in the mounting cavity 16, and the pump 3 is installed in the water storage cavity 15. Finally, the barrel cover is installed at the right end of the water storage device 1 to close the water storage cavity 15 and the mounting cavity 16. During this process, the inlet end of the first valve 2 and the second inlet end and outlet end of the second valve 4 need to pass through the barrel cover or the barrel body so that the inlet end of the first valve 2 and the second inlet end and outlet end of the second valve 4 extend to the outside of the water storage device 1, thereby facilitating the connection to external structures of the water storage device 1, such as water appliances 12, mounting cavity 16, or cold water pipe network 14.
[0050] Furthermore, the installation cavity 16 is located at the top of the water storage device 1, and the pump 3 is located at the bottom of the water storage device 1, so as to facilitate the assembly of the water recycling equipment and extract the liquid stored in the water storage cavity 15 for use as much as possible.
[0051] Based on the above embodiment, the first valve 2 is connected to the first end of the first water inlet pipe 8, the second end of the first water inlet pipe 8 is connected to an opening of the first connector 9, and the first connector 9 has another opening for connecting to the hot water pipe network 13.
[0052] like Figure 1 As shown, a first connector 9 is arranged on the outside of the water storage device 1, and a first valve 2 is connected to one end of the first water inlet pipe 8. The other end of the first water inlet pipe 8 is connected to an opening of the first connector 9. This arrangement facilitates the connection of the first connector 9 to the hot water pipe network 13, making the water recycling equipment easy to install and use.
[0053] For example, the first valve 2 is an on / off valve, and the first connector 9 is a three-way connector. The inlet of the first valve 2 is connected to the first end of the first water inlet pipe 8, and the second end of the first water inlet pipe 8 is connected to one opening of the first connector 9. The other opening of the first connector 9 is used to connect to the hot water pipe network 13, and the remaining opening is used to connect to the water appliance 12. This arrangement facilitates the connection of the first connector 9 to the hot water pipe network 13 and the water appliance 12. Alternatively, the first valve 2 is a two-position three-way valve, and the first connector 9 is a two-way connector. The first outlet of the first valve 2 is connected to the water storage chamber 15, the second outlet is used to connect to the water appliance 12, and the inlet is connected to one opening of the first connector 9 through the first water inlet pipe 8. The remaining opening of the first connector 9 is used to connect to the hot water pipe network 13. This arrangement facilitates the connection of the first connector 9 to the hot water pipe network 13.
[0054] Based on the above embodiment, the second inlet of the second valve 4 is connected to the first end of the second water inlet pipe 10, the second end of the second water inlet pipe 10 is connected to one opening of the second connector 11, and the other opening of the second connector 11 is used to connect to the cold water network 14.
[0055] like Figure 1 As shown, a second connector 11 is arranged on the outside of the water storage device 1, and the second inlet end of the second valve 4 is connected to one end of the second water inlet pipe 10. The other end of the second water inlet pipe 10 is connected to one opening of the second connector 11. In use, the other opening of the second connector 11 can be connected to the cold water pipe network 14. This arrangement further facilitates the installation and use of the water recycling equipment.
[0056] Based on the above embodiments, the water storage device 1 also has a mixing chamber 17. The mixing chamber 17, the installation chamber 16 and the water storage chamber 15 are all independent of each other. The first inlet of the mixing chamber 17 is used to connect to the hot water pipe network 13, the second inlet is used to connect to the outlet of the second valve 4, and the outlet is used to connect to the water appliance 12.
[0057] like Figure 2 As shown, the inner cavity of the water storage device 1 is provided with two blocking structures to divide the inner cavity of the water storage device 1 into three independent parts, namely the water storage cavity 15, the installation cavity 16 and the mixing cavity 17.
[0058] In this embodiment, the second inlet of the mixing chamber 17 is connected to the outlet of the second valve 4, so that liquid in the water storage chamber 15 or the cold water pipe network 14 can be transported to the mixing chamber 17; the first inlet of the mixing chamber 17 is used to connect to the hot water pipe network 13. For example, the first valve 2 is a switch valve. Correspondingly, the first inlet of the mixing chamber 17 is a through hole connecting the mixing chamber 17 to the outside of the water storage device 1. In use, the third inlet pipe 18 at the end of the cold water pipe network 14 is directly connected to the first inlet of the mixing chamber 17, and the first inlet pipe 8 at the end of the cold water pipe network 14 is connected to the inlet of the first valve 2. Alternatively, the first valve 2 is a two-position three-way valve. Correspondingly, the first inlet of the mixing chamber 17 is a through hole connecting the mixing chamber 17 to the mounting cavity 16. The first outlet of the first valve 2 is connected to the water storage chamber 15, the second outlet is connected to the mixing chamber 17, and the inlet is used to connect to the hot water pipe network 13, etc.; the outlet of the mixing chamber 17 is used to connect to the water appliance 12.
[0059] In use, the outlet of the mixing chamber 17 is connected to the water appliance 12. The first valve 2 is adjusted to connect the hot water pipe network 13 to the water storage chamber 15, so that the liquid in the hot water pipe network 13 can flow into the water storage chamber 15. When the temperature of the liquid flowing into the water storage chamber 15 reaches the preset requirement, the first valve 2 is controlled to block the hot water pipe network 13 from the water storage chamber 15, so that the liquid discharged from the hot water pipe network 13 can flow into the mixing chamber 17. In order to adjust the temperature of the liquid output by the water appliance 12, the second valve 4 is selected to connect the water storage chamber 15 to the mixing chamber 17, and the pump 3 is started to pump the cooling liquid stored in the water storage chamber 15 into the mixing chamber 17. Alternatively, the second valve 4 is selected to connect the cold water pipe network 14 to the mixing chamber 17, so that the liquid in the cold water pipe network 14 flows into the mixing chamber 17. The cooling liquid and the heating liquid can be mixed in the mixing chamber 17 to the specified temperature, and then delivered to the mixing chamber 17.
[0060] Furthermore, a second pump is provided in the mixing chamber 17, and the inlet of the second pump is connected to the mixing chamber 17, and the outlet is used to connect to the water-using appliance 12, so as to deliver a sufficiently powerful liquid to the water-using appliance 12.
[0061] In addition to the water recycling equipment that can recycle cold water from the pipeline and reuse it, this utility model also provides a water system that includes the water recycling equipment disclosed in the above embodiments, and also includes a water appliance 12. The water appliance 12 is connected to the outlet of the second valve 4 and can be connected to the hot water pipeline 13. The structure of other parts of the water system can be referred to the prior art, and will not be described in detail here.
[0062] It should be noted that the relational terms such as "first" and "second" mentioned above are only used to distinguish one entity from several other entities, and do not necessarily require or imply any such actual relationship or order between these entities; the terms "upper surface" and "lower surface" and the directional terms "upper," "lower," "left," and "right" mentioned above are defined based on the accompanying drawings in the specification.
[0063] The various embodiments in this specification are described in a progressive manner, with each embodiment focusing on the differences from other embodiments. The same or similar parts between the various embodiments can be referred to each other.
[0064] The above provides a detailed description of the water recycling equipment and water system for the secondary use of recycled cold water from pipe networks provided by this utility model. Specific examples have been used to illustrate the principles and implementation methods of this utility model. The descriptions of the embodiments above are merely for the purpose of helping to understand the method and core ideas of this utility model. It should be noted that those skilled in the art can make various improvements and modifications to this utility model without departing from its principles, and these improvements and modifications also fall within the protection scope of this utility model.
Claims
1. A water recycling device for recovering and reusing cold water from a pipe network, characterized in that, include: A water storage device (1) has a water storage chamber (15) for storing cooling liquid; The first valve (2) can connect or disconnect the water storage chamber (15) from the hot water pipe network (13); Pump (3), the inlet of which is connected to the water storage chamber (15); The second valve (4) has a first inlet connected to the outlet of the pump (3), a second inlet connected to the cold water network (14), and an outlet connected to the water appliance (12). The second valve (4) enables the pump (3) and the cold water network (14) to selectively connect to the water appliance (12).
2. The water recycling equipment for recycling and reusing cold water from a pipe network according to claim 1, characterized in that, The first valve (2) is a temperature-controlled solenoid valve.
3. The water recycling equipment for recycling and reusing cold water from a pipe network according to claim 1, characterized in that, The outlet of the second valve (4) is connected to a pipeline equipped with a flow switch (5) and / or a pressure switch (6).
4. The water recycling equipment for recycling and reusing cold water from a pipe network according to claim 1, characterized in that, The second valve (4) is a two-position three-way solenoid valve.
5. The water recycling equipment for recycling and reusing cold water from a pipe network according to claim 1, characterized in that, The first valve (2) is provided with a throttle valve (7) on the inlet side.
6. The water recycling equipment for recycling and reusing cold water from a pipe network according to claim 1, characterized in that, The water storage device also has an installation cavity (16), which is independent of the water storage cavity (15). The pump (3) is located in the water storage cavity (15), and the first valve (2) and the second valve (4) are both located in the installation cavity (16).
7. The water recycling equipment for recycling and reusing cold water from a pipe network according to claim 1, characterized in that, The first valve (2) is connected to the first end of the first water inlet pipe (8), the second end of the first water inlet pipe (8) is connected to an opening of the first connector (9), and the first connector (9) has another opening for connecting to the hot water pipe network (13).
8. The water recycling equipment for recycling and reusing cold water from a pipe network according to claim 7, characterized in that, The second inlet of the second valve (4) is connected to the first end of the second water inlet pipe (10), and the second end of the second water inlet pipe (10) is connected to one opening of the second connector (11). The other opening of the second connector (11) is used to connect to the cold water network (14).
9. The water recycling equipment for recycling and reusing cold water from a pipe network according to claim 6, characterized in that, The water storage device (1) also has a mixing chamber (17), and the mixing chamber (17), the mounting chamber (16) and the water storage chamber (15) are all independent of each other; The first inlet of the mixing chamber (17) is used to connect to the hot water pipe network (13), the second inlet is used to connect to the outlet of the second valve (4), and the outlet is used to connect to the water appliance (12).
10. A water system comprising water appliances (12), characterized in that, It also includes a water recycling device for recycling cold water from the pipeline network and reusing it, as described in any one of claims 1-9 above, wherein the water-using appliance (12) is connected to the outlet of the second valve (4), and the water-using appliance (12) is conductively connected to the hot water pipeline network (13).