A household water system
By adopting automatic water replenishment valves, buffer water tanks, purifiers and hot water system zero-cold water discharge technology in the household water system, the stability, measurement accuracy and water quality problems of the household water system are solved, and the effect of saving water resources and improving the quality of life is achieved.
Patent Information
- Application Number
- CN202411899922.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-23
- Publication Date
- 2025-04-08
AI Technical Summary
The household water system has problems with insufficient stability, inaccurate measurement, poor water quality and zero cold water discharge, resulting in waste of water resources, increased water costs and inconvenience in life.
The automatic water replenishment valve, buffer water tank, purifier and zero-cold water discharge technology of hot water system is adopted to ensure the stability and accurate measurement of tap water meter, improve the quality of household water use, and achieve zero-cold water discharge of hot water system.
It improves the stability and measurement accuracy of the household water system, improves the water quality, saves water resources and social public resources, and improves the quality of life and satisfaction.
Smart Images
Figure CN119777449A_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to the technical field of domestic water, and in particular to a household domestic water system adopting an automatic water inlet valve, a buffer water tank, a water purifier and a hot water system zero cold water discharge technology. Background Art
[0002] As people's living standards improve, their requirements for quality of life are also getting higher and higher, such as the demand for improved water quality, the demand for comfort when using hot water, the demand for saving zero cold water discharge when using hot water systems, and the demand for a sense of warmth.
[0003] For household hot water, single-pipe hot water supply is generally used, which has the characteristics of easy installation and low cost, and has formed industry construction safety technical specifications. However, when the hot water supply single-pipe pipeline is long, the cold water retained in the hot water supply pipeline needs to be discharged before using the hot water. It is not convenient to collect and use it, and direct discharge is a waste. For the whole society, "sand piles make a tower, and feathers gather to make a coat", which will inevitably cause a huge waste of fresh water resources.
[0004] There are currently many solutions to the cold water discharge problem in the hot water supply system, and they have achieved good implementation results, such as the use of remote temperature control valves and return devices installed at the water heater, pipe-in-pipe hot water supply systems, etc. However, the use of remote temperature control valves and return devices installed at the water heater requires the temperature control valve and the return device to be linked to remotely control the start and stop, which is inconvenient to install and operate; the use of pipe-in-pipe systems has a good implementation effect, but it is inconvenient to install and increase costs, and it is difficult to promote and apply in ordinary households.
[0005] The tap water used in existing household water systems may have poor water quality when it reaches the household water supply end due to the inevitable corrosion and bacterial growth problems in the water supply pipes, and the water needs to be purified.
[0006] Domestic water use is random, temporary and uncertain. The start and stop of water facilities will cause fluctuations in the pressure of the water supply pipeline, and the pressure fluctuation will lead to inaccurate measurement of the tap water meter at the user end. The accurate measurement of small water consumption requires a more accurate metering water meter. The water flow caused by pressure fluctuations drives the metering water meter, forming a false measurement value, which leads to increased water cost for users. The abnormal water consumption after the promotion of precision metering water meters and the reports driven by departmental interests have caused a great social response, and have had a negative impact on social equity and credibility. The harm should not be underestimated.
[0007] The normal accuracy range of a tap water meter is usually ±2%. According to national standards, the accuracy of a tap water meter is generally required to be within ±2%, which means that the deviation between the meter reading and the actual water consumption should be within plus or minus 2%. In addition, the accuracy requirements of household smart water meters are also specified under different flow conditions: Minimum flow rate (Qmin): The cumulative indication error should not exceed ±5%; Boundary flow (Qt): The cumulative indication error should not exceed ±2%; Common flow rate (Qn): The cumulative indication error should not exceed ±2%; Maximum flow rate (Qmax): The cumulative indication error should not exceed ±2%.
[0008] Factors that affect the accuracy of water meters include manufacturing quality, design structure, installation conditions, use environment and maintenance. High-quality materials and precision processing technology can improve the accuracy of water meters, while the choice of installation location, water quality conditions, temperature changes, and regular calibration and cleaning and maintenance can also affect its accuracy. In order to ensure the accuracy of water meter measurement, users should choose water meter brands and models with reliable quality and conduct regular inspections and maintenance. For general measuring instruments, the measurement error is the smallest at one-half to two-thirds of the range. The higher the accuracy, the more complex the instrument manufacturing and the more difficult the maintenance.
[0009] In addition, when the water supply pipeline is under maintenance, water will be cut off in designated areas and time periods. It is necessary to store spare water in a timely manner at home to avoid affecting normal life.
[0010] In response to the above problems, it is worth further studying how to use technical means to solve the stability of household water systems, the accuracy of household water metering, the improvement of household water quality, and the inconvenience in life and fire emergency caused by water outages in household water systems. Summary of the invention
[0011] The purpose of the present invention is to solve the above-mentioned problems and to provide a household water system, which adopts automatic water replenishment valve, buffer water tank water inlet and water storage, purifier water purification, and hot water system zero cold water discharge technology, so as to effectively improve the measurement accuracy and stability of household water meters and the water quality of household water, realize zero cold water discharge of household hot water systems, and achieve the purpose of saving water resources, saving social public resources, and improving people's quality of life and life satisfaction.
[0012] A domestic water system, characterized in that: The household water meter 40 of the household water system or the household pipe is provided with an automatic water replenishment valve 41 and a buffer water tank 43. When the domestic water facilities are put into use, the buffer water tank 43 supplies water to the water facilities through the indoor water supply pipe 46. When the water level in the buffer water tank 43 is at a set low water level, the automatic water replenishment valve 41 opens to allow water to flow in. When the water level in the buffer water tank 43 reaches a set high water level, the automatic water replenishment valve 41 closes to stop replenishing water. Since the automatic water replenishment valve 41 can automatically and smoothly replenish water to the buffer water tank 43 when the buffer water tank 43 is at a low water level, the automatic water replenishment valve 41 is closed when the water level in the buffer water tank 43 reaches the set high water level, and the entire water replenishment process is continuous and smooth, thereby ensuring the stable and accurate measurement of the tap water meter 40; when domestic water is used and the water facilities are put into use, the water pressure fluctuations and water volume changes of domestic water use will be caused, but since the water is supplied by the buffer water tank 43, it will not affect the measurement of the tap water meter, thereby eliminating the influence of the water pressure and water volume changes on the measurement accuracy of the tap water meter when the traditional household water facilities are put into use, and eliminating the influence of the water supply system when the traditional household water facilities are put into use.
[0013] The water facilities include faucets, hot and cold water faucets, showers, washing machines, dishwashers, hot water heaters, etc.
[0014] Equipped with purifier 54: The purifier 54 is disposed on the indoor water supply pipe 46 between the buffer water tank 43 and the water-using facility, and is used to remove impurities, bacteria or harmful ions in the tap water.
[0015] The purifier 54 includes a filter, an ultraviolet sterilizer, an ozone sterilizer, a reverse osmosis membrane water purifier or a water softener (including a specific ion removal device, such as chloride ions, etc.).
[0016] A return water pipe 51 and a micro water pump 52 are provided: The water in the buffer water tank 43 is sent to the water heater 48 through the indoor water supply pipe 46. After being heated by the water heater 48, the generated hot water is supplied to the hot water facility 50 through the hot water pipe 49 for family use. Because the water in the hot water pipe 49 will cool down to form cold water when the hot water facility 50 is out of use, before the hot water facility is put into use, the cold water in the hot water pipe 49 enters the indoor water supply pipe 46 through the return pipe 51 and the micro water pump 52, thereby achieving zero cold water discharge during the use of hot water in the family water system.
[0017] Preferably, a temperature control valve 55 is provided: when the water temperature in the return pipe 51 reaches a set temperature (for example, about 35° C.), the temperature control valve 55 is closed, the micro water pump 52 is stopped, and the hot water facility 50 is turned on to provide hot water for household use.
[0018] Preferably, the water inlet of the return water pipe 51 is arranged on the hot water pipe 49 close to the hot water facility 50 .
[0019] Preferably, when the water temperature of the hot water pipe 49 near the hot water facility 50 reaches a set value (eg, about 35° C.), the micro water pump 52 stops operating and the stop valve provided on the return water pipe 51 is closed.
[0020] Preferably, the hot water facility 50 is located far away from the water heater 48 .
[0021] The water heater 48 includes a gas water heater, an electric water heater, and a solar water heater.
[0022] Typically, the hot water facility 50 is a dual-use faucet for hot and cold water, which provides hot water for household washing.
[0023] The indoor water supply pipeline 46 includes pipes, pipe fittings and supporting parts thereof.
[0024] The pipe fittings include elbows, tees, crosses, reducers, pipe caps, plugs, etc.
[0025] The connection between the pipes, the pipes and the pipe fittings, and the pipe fittings and the pipe fittings is achieved by welding, hot-melt connection, expansion connection or threaded connection.
[0026] The unspecified facilities in the domestic water system are matched with reference to or according to the reliable and mature technologies in the known domestic water supply pipelines.
[0027] Compared with the prior art, the present invention has the following advantages: 1. Compared with the existing domestic water system, the automatic water replenishment valve and buffer water tank provided in the present invention are conventional and mature facilities in industrial applications, but when applied to the domestic water system, unexpected technical effects can be achieved: (1) Since the automatic water filling valve can automatically and smoothly fill the buffer water tank when the water level in the buffer water tank is at a low level, and the automatic water filling valve closes when the water level in the buffer water tank reaches the set high water level, the entire water filling process is continuous and smooth, thus ensuring the stable and accurate measurement of the tap water meter; (2) When domestic water is used, the water pressure and water volume of domestic water will fluctuate when the water facilities are put into use. However, since the water is supplied by the buffer tank, it will not affect the measurement of the tap water meter, thereby eliminating the influence of the water pressure and water volume changes on the measurement accuracy of the tap water meter when the traditional domestic water facilities are put into use, and eliminating the influence of the traditional domestic water facilities on the water supply system when they are put into use; and the inaccuracy of the tap water meter measurement at the user end caused by the fluctuation of the pressure and water volume of domestic water, the increase of the user's water cost, the abnormal water consumption after the promotion of precision metering water meters, and the reports driven by departmental interests are often seen in newspapers, with great social repercussions, and have a negative impact on social fairness and credibility. Its harm should not be underestimated. The technical solution of the present invention eliminates this disadvantage invisibly; (3) Since the tap water meter can measure smoothly, stably and accurately, there is no need to consider the impact of subtle changes in water volume and pressure. There is no need to replace high-precision tap water meters like many places currently do. However, the replaced tap water meters cannot be effectively used, which will objectively cause idle resources and great waste; (4) Due to the water storage function of the buffer water tank, when the water supply department conducts water supply pipeline maintenance and cuts off water supply in a certain area or time period, the stored water in the buffer water tank can provide daily necessities without affecting the normal life of the family; (5) The water storage capacity of the buffer water tank can effectively provide emergency rescue materials in special circumstances such as fire caused by water outage; 2. Compared with the prior art, the zero cold water discharge technical solution of the household hot water system of the present invention can be applied to both newly built household water supply systems and the transformation of traditional household water systems. The technology has strong versatility and low transformation cost; 3. Compared with the existing technical specifications for construction safety in the domestic water supply industry, the technical solution of the present invention, if it becomes a general technical specification for the industry, will undoubtedly have great social and economic significance. BRIEF DESCRIPTION OF THE DRAWINGS
[0028] Figure 1 It is a structural schematic diagram of a household water system of the present invention.
[0029] Figure 1 In: 40-tap water meter, 41-automatic water replenishment valve, 42-water inlet pipe, 43-buffer water tank, 44-regulating valve, 45-pipe before purifier, 46-indoor water supply pipe, 47-No. 1 water facility, 48-water heater, 49-hot water pipe, 50-hot water facility, 51-return pipe, 52-micro water pump, 53-No. 2 water facility, 54-purifier, 55-temperature control valve. DETAILED DESCRIPTION
[0030] The following is combined with Figure 1 The present invention is further described in detail with reference to the accompanying drawings and specific examples.
[0031] Embodiment 1: A household water system, wherein an automatic water filling valve 41 and a buffer water tank 43 are arranged at the household inlet or the household inlet pipe of a tap water meter 40 of the household water system, and tap water enters the buffer water tank 43 through the tap water meter 40, the automatic water filling valve 41 and the water inlet pipe 42, and a regulating valve 44 is arranged on the upper part of the buffer water tank 43, and the regulating valve 44 is used to adjust the water level and the air space pressure in the buffer water tank 43 to a suitable range. When the domestic water facilities are put into use, the buffer water tank 43 supplies the No. 1 water facility 47 and the No. 2 water facility 53 through the indoor water supply pipeline 46. When the water level in the buffer water tank 43 is at a set low water level, the automatic water replenishment valve 41 opens to allow water to flow in. When the water level in the buffer water tank 43 reaches a set high water level, the automatic water replenishment valve closes to stop replenishing water. Since the automatic water replenishment valve 41 can automatically and smoothly replenish water into the buffer water tank 43 when the buffer water tank 43 is at a low water level, the automatic water replenishment valve 41 is closed when the water level in the buffer water tank 43 reaches the set high water level, and the entire water replenishment process is continuous and smooth, thereby ensuring the stable and accurate measurement of the tap water meter 40; when domestic water is used and the water facilities are put into use, the water pressure fluctuations and water volume changes of domestic water use will be caused, but since the water is supplied by the buffer water tank 43, it will not affect the measurement of the tap water meter, thereby eliminating the influence of the water pressure and water volume changes on the measurement accuracy of the tap water meter when the traditional household water facilities are put into use, and eliminating the influence of the water supply system when the traditional household water facilities are put into use.
[0032] The water facilities include faucets, hot and cold water faucets, showers, washing machines, dishwashers, water heaters, etc.
[0033] Equipped with purifier 54: The purifier 54 is disposed on the indoor water supply pipe 46 between the buffer water tank 43 and the water-using facility, and is used to remove impurities, bacteria or harmful ions in the tap water.
[0034] The purifier 54 includes a filter, an ultraviolet sterilizer, an ozone sterilizer, a reverse osmosis membrane water purifier or a water softener (including a specific ion removal device, such as chloride ions, etc.).
[0035] A return water pipe 51 and a micro water pump 52 are provided: The water in the buffer water tank 43 is sent to the water heater 48 through the indoor water supply pipe 46. After being heated by the water heater 48, the generated hot water is supplied to the hot water facility 50 through the hot water pipe 49 for family use. Because the water in the hot water pipe 49 will cool down to form cold water when the hot water facility 50 is out of use, before the hot water facility is put into use, the cold water in the hot water pipe 49 enters the indoor water supply pipe 46 through the return pipe 51 and the micro water pump 52, thereby achieving zero cold water discharge during the use of hot water in the family water system.
[0036] Preferably, a temperature control valve 55 is provided: when the water temperature in the return pipe reaches a set temperature (eg, about 35° C.), the temperature control valve 55 is closed, the micro water pump 52 is stopped, and the hot water facility 50 is turned on to provide hot water for household use.
[0037] Preferably, the water inlet of the return water pipe 51 is arranged on the hot water pipe 49 close to the hot water facility 50 .
[0038] Preferably, when the water temperature of the hot water pipe 49 near the hot water facility 50 reaches a set value (eg, about 35° C.), the micro water pump automatically stops operating and the stop valve provided on the return water pipe 51 automatically closes.
[0039] Preferably, the hot water facility 50 is located far away from the water heater 48 .
[0040] The water heater 48 includes a gas water heater, an electric water heater, and a solar water heater.
[0041] The hot water facility 50 is a dual-use faucet for hot and cold water, which provides hot water for household washing.
[0042] The indoor water supply pipeline 46 includes pipes, pipe fittings and supporting parts thereof.
[0043] The pipe fittings include elbows, tees, crosses, reducers, pipe caps, plugs, etc.
[0044] The connection between the pipes, the pipes and the pipe fittings, and the pipe fittings and the pipe fittings is achieved by welding, hot-melt connection, expansion connection or threaded connection.
[0045] The unspecified facilities in the domestic water system are matched with reference to or according to the reliable and mature technologies in the known domestic water supply pipelines.
[0046] Although the present invention has been disclosed as above with preferred embodiments, they are not intended to limit the present invention. Anyone familiar with the art can make various changes or modifications without departing from the spirit and scope of the present invention, which also belong to the protection scope of the present invention. Therefore, the protection scope of the present invention shall be based on the definition of the claims of this application.
Claims
1. A household water system, characterized in that: The household water meter (40) of the household water system is provided with an automatic water replenishment valve (41) and a buffer water tank (43) at the household inlet or the household inlet pipeline. When the domestic water facilities are put into use, the buffer water tank (43) supplies water to the water facilities through the indoor water supply pipeline (46). When the water level in the buffer water tank (43) is at a set low water level, the automatic water replenishment valve (41) opens to allow water to enter, and when the water level in the buffer water tank (43) reaches a set high water level, the automatic water replenishment valve (41) closes to stop replenishing water.
2. The domestic water system according to claim 1, characterized in that: The connections between pipes, pipes and pipe fittings, and pipe fittings and pipe fittings in the indoor water supply pipeline (46) are made by welding, hot-melt connection, expansion connection or threaded connection.
3. The domestic water system according to claim 1, characterized in that: With Purifier (54): The purifier (54) is arranged on an indoor water supply pipeline (46) between the buffer water tank (43) and the water-using facility.
4. The domestic water system according to claim 3, characterized in that: The purifier (54) includes a filter, an ultraviolet sterilizer, an ozone sterilizer, a reverse osmosis membrane water purifier or a water softener.
5. The domestic water system according to claim 1 or 3, characterized in that: A return water pipe (51) and a micro water pump (52) are provided: The water in the buffer water tank (43) is sent to the water heater (48) through the indoor water supply pipe (46). After being heated by the water heater (48), the generated hot water is supplied to the hot water facility (50) through the hot water pipe (49) for domestic use. When the hot water facility (50) is stopped, the water in the hot water pipe (49) will cool to form cold water. Before the hot water facility is put into use, the cold water in the hot water pipe (49) enters the indoor water supply pipe (46) through the return pipe (51) and the micro water pump (52), thereby achieving zero cold water discharge during the use of hot water in the domestic water system.
6. The domestic water system according to claim 5, characterized in that: The water heater (48) includes a gas water heater, an electric water heater, and a solar water heater.
7. The domestic water system according to claim 1, characterized in that: The water facilities include faucets, hot and cold water faucets, showers, washing machines, dishwashers, and hot water heaters.
8. The domestic water system according to claim 5, characterized in that: A temperature control valve (55) is provided: when the water temperature in the return water pipe (51) reaches a set temperature, the temperature control valve (55) is closed, the micro water pump (52) is stopped, and the hot water facility (50) is turned on to provide hot water for family life.
9. The domestic water system according to claim 5, characterized in that: When the water temperature of the hot water pipe (49) near the hot water facility (50) reaches a set value, the micro water pump (52) stops operating and the stop valve provided on the return water pipe (51) is closed.