Zero cold water circulation pipe valve system
By introducing electric two-way valves and infrared sensors into the home hot water circulation system, combined with automatic frequency conversion booster pump, the problem of delay in hot water circulation in the long pipeline is solved, realizing instant hot water supply and efficient and energy-saving water supply.
Patent Information
- Application Number
- CN202421495501.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-27
- Publication Date
- 2025-07-08
- Estimated Expiration
- 2034-06-27
AI Technical Summary
In the home hot water circulation system, due to the long length of the pipe, the water point needs to be turned on and wait for the cold water to be discharged, which affects the convenience and comfort of use.
The zero-cold water circulation pipe valve system is adopted, and the combination of electric two-way valve and infrared sensor is used to automatically start the hot water circulation, and the water flow speed is adjusted through an automatic frequency converter booster pump to achieve efficient and energy-saving water supply.
It realizes instant supply of hot water, improves water resource utilization, reduces energy consumption and water costs, and extends pipeline life.
Smart Images

Figure CN223076764U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of hot water circulation, in particular to a zero cold water circulation pipe valve system. Background Technique
[0002] A water supply system refers to supplying different water - using places according to certain quality requirements. The water supply system should meet the needs of users for water quality, water quantity and water pressure. A household water supply system supplies water to different places in the household. In order to meet different needs and increase the comfort of domestic water use, hot water is usually required in the household. The water in the water tank is heated by a heating device and then transported to different places.
[0003] In the hot water circulation of a household, due to the long length of the laid pipelines, after the switch at the water - using point is opened, the cold water in the pipeline will first flow out from the water - using port. If the heating device is turned on in advance, it requires a certain response time, which makes the process of using hot water less convenient and affects the comfort of daily life. Summary of the Utility Model
[0004] The purpose of the utility model is to provide a zero cold water circulation pipe valve system. An electric two - way valve is arranged in the device, and the electric two - way valve is equipped with an infrared sensor. The infrared sensor is used to sense the passing of people, so as to automatically start the hot water circulation process, so as to solve the problems put forward in the above - mentioned background technique.
[0005] To achieve the above purpose, the utility model provides the following technical solution: A zero cold water circulation pipe valve system includes a water inlet pipe. A return pipe is arranged below the water inlet pipe. A connecting pipe is connected between the water inlet pipe and the return pipe. One end of the water inlet pipe is connected to a water tank, and one end of the return pipe is connected to the water tank. The other end of the return pipe is connected to a communicating pipe. The water inlet pipe, the return pipe and the communicating pipe form a complete pipeline loop of the zero cold water circulation pipe valve system. An electric two - way valve is arranged inside the communicating pipe at the return pipe. The electric two - way valve is connected with an infrared sensor. The infrared sensor supporting the electric two - way valve is arranged at each water - using point in the household.
[0006] Preferably, the return pipe is connected with a communicating pipe. One end of the communicating pipe is set as an annular pipeline structure, and the other end of the communicating pipe is annularly arranged and then returns to the surface of the return pipe and is connected to the return pipe.
[0007] By adopting the above - mentioned technical solution, the annular pipeline can be used to realize the circulation of water flow in the system.
[0008] Preferably, the communicating pipe uses a one - pipe - through structure, and the elbow at the surface of the communicating pipe is connected by an elbow bender.
[0009] With the above technical solution, the one-piece structure can reduce the connection points of the pipeline and increase the service life of the pipeline.
[0010] Preferably, a plurality of water use points are arranged on the surface of the annular communicating pipe.
[0011] With the above technical solution, the water use points in the pipe valve system can be used to arrange the household water use points.
[0012] Preferably, a distributor is arranged on the surface of the connecting pipe.
[0013] With the above technical solution, the distributor can be used to distribute the water flow in the circulating pipeline.
[0014] Preferably, an automatic variable frequency booster pump is arranged on the surface of the water inlet pipe.
[0015] With the above technical solution, the automatic variable frequency booster pump can be used to adjust the water flow rate.
[0016] Compared with the prior art, the beneficial effects of the present utility model are as follows: This zero cold water circulating pipe valve system:
[0017] 1. This device is provided with an electric two-way valve, and the electric two-way valve is equipped with an infrared sensor. The infrared sensor is arranged at each water use point of the household hot water circulation. The infrared sensor can accurately detect whether someone passes by. When the user passes by, the infrared sensor will immediately transmit a signal to the electric two-way valve, quickly opening the hot water circulation channel, delivering the preheated hot water to the designated position and quickly pushing the cold water in the pipeline back to the water tank at the same time;
[0018] 2. This device is provided with an automatic variable frequency booster pump. When multiple water use points are used simultaneously, the automatic variable frequency booster pump adjusts the water flow rate through automatic frequency conversion to achieve efficient and energy-saving water use, not only improving the utilization rate of water resources, but also effectively reducing energy consumption and saving water costs;
[0019] 3. The water flow pipeline of this device uses a one-piece structure, and the pipe bender is used for connection at the pipe turning points. The one-piece pipeline structure can reduce the welded joints at the pipeline connections, and one pipe is used to connect between each water use point, increasing the service life of the pipeline. BRIEF DESCRIPTION OF THE DRAWINGS
[0020] Figure 1 is a schematic diagram of the overall connection structure of the present utility model;
[0021] Figure 2 is a schematic diagram of the water inlet pipe and the water return pipe structure of the present utility model;
[0022] Figure 3 is a schematic diagram of the connection structure of the communicating pipe and the pipe bender of the present utility model.
[0023] In the figure: 1, water inlet pipe; 2, water return pipe; 3, connecting pipe; 4, communicating pipe; 5, pipe bender; 6, water usage point; 7, distributor; 8, electric two-way valve; 9, automatic variable frequency booster pump. Specific implementation mode
[0024] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.
[0025] Please refer to Figures 1-3 , the present invention provides a technical solution: a zero cold water circulation pipe valve system, including a water inlet pipe 1, a water return pipe 2, a connecting pipe 3, a communicating pipe 4, a pipe bender 5, a water usage point 6, a distributor 7, an electric two-way valve 8, and an automatic variable frequency booster pump 9.
[0026] A water return pipe 2 is arranged below the water inlet pipe 1, a connecting pipe 3 is connected between the water inlet pipe 1 and the water return pipe 2, one end of the water inlet pipe 1 is connected to a water tank, one end of the water return pipe 2 is connected to the water tank, the other end of the water return pipe 2 is connected to a communicating pipe 4, and the water inlet pipe 1, the water return pipe 2, and the communicating pipe 4 form a complete pipeline loop of the zero cold water circulation pipe valve system. The water return pipe 2 is connected to the communicating pipe 4. One end of the communicating pipe 4 is set as an annular pipe structure, and the other end of the communicating pipe 4 is annularly arranged and then returns to the surface of the water return pipe 2 to be connected to the water return pipe 2. The communicating pipe 4 uses a one-piece structure, and the bent part on the surface of the communicating pipe 4 is connected by a pipe bender 5. A plurality of water usage points 6 are arranged on the surface of the annular communicating pipe 4. An electric two-way valve 8 is arranged inside the communicating pipe 4 at the water return pipe 2. The electric two-way valve 8 is connected to an infrared sensor, and the infrared sensor supporting the electric two-way valve 8 is arranged at each water usage point 6 in the family. A distributor 7 is arranged on the surface of the connecting pipe 3, and an automatic variable frequency booster pump 9 is arranged on the surface of the water inlet pipe 1;
[0027] Such as Figures 1-3As shown, a heating structure is provided in the water tank connected to the pipe valve system. The water inlet pipe 1, the return pipe 2, and the connecting pipe 4 are connected to form a water flow circuit of the zero-cold-water water flow system. A plurality of water usage points 6 are provided in the water flow circuit, and an infrared sensor is provided on the surface of the water usage point 6 and connected to the electric two-way valve 8. When a person passes by the infrared sensor, the infrared sensor will immediately transmit a signal to the electric two-way valve 8 and quickly open the hot water circulation channel. The preheated hot water in the water tank is transported to the corresponding water usage point 6 through the water inlet pipe 1, the connecting pipe 3, and the connecting pipe 4. At the same time, the cold water in the pipeline is quickly pushed back into the water tank through the return pipe 2, so that the water output at the water usage point 6 is always hot water, which is convenient for daily use. When multiple water usage points 6 are used simultaneously, the automatic variable frequency booster pump 9 adjusts the water flow speed through automatic variable frequency, improving the utilization rate of water resources, effectively reducing energy consumption, and saving water costs.
[0028] Working principle: When using this zero-cold-water circulating pipe valve system, a water flow circulation circuit is formed by using the water inlet pipe 1, the connecting pipe 3, the return pipe 2, and the connecting pipe 4. An electric two-way valve 8 is provided at the connecting pipe 4, and the electric two-way valve 8 is equipped with an infrared sensor. The infrared sensor can accurately detect whether someone passes by. When the user passes by, the infrared sensor will transmit a signal to the electric two-way valve 8 to open the hot water circulation channel, which is convenient for daily use. When multiple water usage points 6 are used simultaneously, the automatic variable frequency booster pump 9 adjusts the water flow speed through automatic variable frequency, improving the utilization rate of water resources, saving water costs, and increasing the overall practicality.
[0029] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.
Claims
1. A zero cold water circulation pipe valve system, comprising a water inlet pipe (1), a water return pipe (2) is arranged below the water inlet pipe (1), and a connecting pipe (3) is connected between the water inlet pipe (1) and the water return pipe (2), characterized in that: One end of the water inlet pipe (1) is connected to the water tank, one end of the water return pipe (2) is connected to the water tank, the other end of the water return pipe (2) is connected with a communicating pipe (4), and the water inlet pipe (1), the water return pipe (2) and the communicating pipe (4) form a complete pipeline loop of the zero - cold - water circulation pipe valve system. An electric two - way valve (8) is arranged inside the communicating pipe (4) at the water return pipe (2), the electric two - way valve (8) is connected with an infrared sensor, and the infrared sensor supporting the electric two - way valve (8) is arranged at each water - using point (6) in the family.
2. The zero-chilled water circulation pipe valve system according to claim 1, characterized in that: The water return pipe (2) is connected with a communicating pipe (4). One end of the communicating pipe (4) is set as an annular pipe structure, and after the other end of the communicating pipe (4) is annularly arranged, it returns to the surface of the water return pipe (2) and is connected with the water return pipe (2).
3. The zero - cold - water circulating pipe valve system according to claim 2, wherein: The communicating pipe (4) uses a one - pipe - through structure, and the elbow at the surface of the communicating pipe (4) is connected by an elbow tool (5).
4. The zero cold water circulation pipe valve system according to claim 3, wherein: A plurality of water - using points (6) are arranged on the surface of the annular communicating pipe (4).
5. A zero cold water circulation pipe valve system according to claim 1, characterized in that: A distributor (7) is arranged on the surface of the connecting pipe (3).
6. The zero - cold - water circulation pipe valve system according to claim 1, characterized in that: An automatic variable - frequency booster pump (9) is arranged on the surface of the water inlet pipe (1).