CN211399984U

CN211399984U - Hot water supply system for household bathroom

Info

Publication number: CN211399984U
Application number: CN201922036451.1U
Authority: CN
Inventors: 张景尧; 张红辉
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-11-22
Filing date: 2019-11-22
Publication date: 2020-09-01
Anticipated expiration: 2029-11-22

Abstract

The utility model provides a domestic bathroom hot water supply system. Through the combined application of the valves, the safe use is ensured, the unified coordination of a small amount of water, a medium amount of water and a large amount of water is realized, the overall consideration of economy and life quality is realized, a reasonable use mode can be set according to the temperature characteristics of seasons, and the leap of the hot water supply quality of a family is completed.

Description

Hot water supply system for household bathroom

Technical Field

The utility model belongs to be applicable to the controlling means of heat exchange specially to heat exchange medium distribution between the different passageways of valve and pipeline combination control, bathroom hot water supply technology and product between the concretely relates to modern house.

Background

The scheme for reliably and effectively supplying hot water is changed all the year round and cannot be opened in modern home, and hot water supply equipment mainly comprises an air energy water heater, an electric water heater, a solar water heater, a gas water heater and the like according to different supply modes. The air energy water heater is not popularized yet, and the equipment is expensive; the electric water heater adopts a direct electric heating scheme, is dominant in areas where natural gas pipelines are not communicated, is mainly distributed in vast rural areas in China, and is low in heating speed, limited in water supply quantity of hot water, small in terminal water pressure, small in hot water supply flow and dangerous for electric shock in a humid environment; the solar water heater is greatly influenced by weather, often needs electric heating for auxiliary heating, has small water pressure and is limited in installation condition; the main countries in the world and cities above the main county level of China all reach pipeline natural gas, the gas water heater is a main scheme for supplying hot water for modern homes, and the gas water heater is also used as a hot water supply option in parts of regions adopting canned gas.

The gas water heater has the instant heating characteristic, can realize the rapid and large-flow hot water supply, and is the mainstream of domestic household hot water supply in China. When hot water is supplied by a gas water heater, the gas water heater is generally installed in places such as kitchens where ventilation is easy to occur for safety reasons, and cannot be installed in places such as bathrooms where hot water is used. In the house type design of modern home, a toilet needs to be close to a bedroom, and a kitchen needs to be far away from the bedroom as far as possible, so that the toilet and the kitchen are far away, and the length of a typical pipeline is more than 5 meters, even more than 15 meters. When hot water is needed in a toilet, daily living activities such as washing, showering and the like are involved, and when a water valve is opened to obtain hot water, the hot water cannot be supplied in time due to the long-distance hot water supply.

The common household water supply adopts 4-minute tap water pipes with the diameter of about 20 millimeters, and the water storage capacity in the hot water supply pipeline reaches 3.14 liters by the average length of 10 meters of the hot water supply pipeline. Tests show that under normal water pressure, the flow rate of a common tap water valve is about 0.25 meter per second when the tap water valve is fully opened, and about 40 seconds are needed for completing the emptying of 3.14 liters of stored water.

Thus, the typical domestic gas water heater water supply will present the following problems:

1. when a small amount of water (V <1 liter) is used for washing hands with hot water, brushing teeth and the like, the hot water can be used only by emptying a pipeline to store water, so that the water is not economical in time and water consumption, and the use of the hot water has to be abandoned, thereby reducing the life quality;

2. when the water is used for washing face and the like with hot water in a medium amount (1< V < 5L), because the water stored in an emptying pipeline is equivalent to the amount of the hot water required to be used, the use of the hot water has to be abandoned to reduce the quality of life in most cases, or the use of the hot water is accepted to cause a large amount of water resource waste and consumption caused by frequent starting of a water heater, and the time and quality cost for waiting for the hot water to pay out;

3. when a large amount of water (V >5 liters) is used for shower washing and washing with hot water, the waiting time and the relative water consumption cost required by the water storage of the emptying pipeline become acceptable, part of users select to use the hot water under the condition of storing the emptied cold water for other use, and part of users directly discard the emptied cold water, so that unnecessary waste is caused; more importantly, the long wait time degrades the hot water use experience.

Although most of gas water heaters are installed in kitchens, the kitchen water pipeline is short, in order to avoid waste caused by a small amount of water, a part of families are provided with a small-capacity electric water heater (commonly called a small kitchen appliance) in the kitchen for supplement; similarly, a small kitchen treasure can be additionally arranged under the bathroom wash platform to solve the problem of waste caused by a small amount of water, and some families adopt an instant electric water heater with very high power in the wash platform. In order to solve the problem of large amount of water, the prior art adopts domestic hot water circulation to solve.

The domestic hot water circulation means that an electric circulating pump is arranged in a hot water loop to enable water on the water loop to be continuously circulated so as to achieve the effect that all water at a water outlet in the loop is hot. The household hot water circulation realizes that the hot water can be used as soon as being opened without waiting, so that the comfort of the household water is greatly improved, and the quality of life is improved. The household hot water circulation usually adopts two modes of temperature and time to control the water temperature, so that the set time can be reserved, and the energy can not be wasted because people do not circulate at home; the temperature of hot water which is preferred by the user can be set, when the temperature of the system water is lower than the set temperature, the circulating pump starts to circulate, and the water of the system is ensured to be always kept at the constant set temperature within the set water using time. The zero cold water heater who popularizes now integrates pressure boost circulating pump and gas heater, but can not change its expensive, frequently start and the high problem of energy consumption.

The household hot water circulation is realized by additionally arranging the circulating pump, although the instant hot water is ensured, the circulating pump is expensive, the construction requirement is high, the pipeline is complex, the household hot water circulation system has applicability only in special house types such as villas and the like, and common families are difficult to select. In addition, the household hot water circulation requires that the gas water heater and the circulating pump are in an open state for most of time, consumes electricity and gas, and runs counter to the green energy-saving concept of the modern society; when the household personnel go out daily, the circulation pump equipment is generally not selected to be closed to maintain the operation, and the intermittent open fire heating has larger potential safety hazard; for an inventory of home furnishings where no domestic hot water circulation is installed, it is almost impossible to carry out modification work to improve the quality of life.

Disclosure of Invention

The utility model aims at providing a household bathroom hot water supply system, which is characterized by comprising an electric water heater, a gas water heater, a washbasin faucet and a bath faucet which are connected through a pipeline system.

And a hot water outlet of the gas water heater is connected to a hot water pipe I. One end of the hot water pipe I is connected with the gas water heater, and the other end of the hot water pipe I is connected with the pipe orifice A of the three-way pipe I. And a pipe orifice B of the three-way pipe I is connected to a hot water inlet of the shower faucet through a hot water pipe III. And the pipe orifice C of the three-way pipe I is connected with the pipe orifice C of the three-way pipe after being connected with the one-way valve in series. The one-way valve can only be communicated from the three-way pipe to the three-way pipe I.

And a hot water outlet of the electric water heater is connected to a pipe orifice B of the three-way pipe. And the pipe orifice A of the three-way pipe is connected to a hot water inlet of a washbasin faucet through a hot water pipe II.

And a cold water inlet of the bathing faucet is connected with a cold water pipe I. And two three-way pipes are connected to the cold water pipe I in series and are respectively marked as a three-way pipe II and a three-way pipe III. The three-way pipe II is not connected in series with the pipe orifice of the cold water pipe I and is connected to a cold water inlet of the washbasin faucet through the cold water pipe II. The three-way pipe III is not connected in series with the pipe orifice of the cold water pipe I and is connected with a cold water inlet of the electric water heater through the cold water pipe III.

The utility model discloses still improve an electric water heater who is applied to domestic bathroom hot water supply system. The water heater can be directly applied to installation of a household bathroom hot water supply system, and can also be used for modifying a water heater of the existing bathroom system

The electric water heater is provided with three interfaces, namely a cold water inlet, an A port of a three-way pipe and a water outlet of a one-way valve. The hot water stored in the internal water tank of the electric water heater leads to the port B of the three-way pipe. The port C of the three-way pipe is connected with the water inlet of the one-way valve in series.

When the water heater is installed and used, the electric water heater is connected with the gas water heater, the washbasin faucet and the bath faucet through the pipeline system.

And a hot water outlet of the gas water heater is connected to a hot water pipe I. One end of the hot water pipe I is connected with the gas water heater, and the other end of the hot water pipe I is connected with the pipe orifice A of the three-way pipe I. And a pipe orifice B of the three-way pipe I is connected to a hot water inlet of the shower faucet through a hot water pipe III. The one-way valve is communicated with the port C of the three-way pipe and the port C of the three-way pipe I. The one-way valve can only be communicated from the three-way pipe to the three-way pipe I.

And the pipe orifice A of the three-way pipe is connected to a hot water inlet of a washbasin faucet through a hot water pipe II.

Further, at least one of the three-way pipe and the three-way pipe I is a three-way valve with a valve.

Further, the electric water heater is powered by a mains supply; and is provided with a power supply switch and a valve for controlling the on-off of water inlet.

Furthermore, the washbasin faucet and the bath faucet are both cold and hot water faucets with water mixing functions.

Further, the electric water heater is a small capacity electric water heater.

Further, the capacity of the electric water heater is approximately equal to the capacity of the hot water pipe I for storing water.

Further, the three-way valve is a solenoid valve.

The utility model discloses mainly solved the bathroom hot water supply quality problem of keeping away from gas heater, its technical effect is undoubted. According to the scheme, through the combined application of the valves, the unified coordination of a small amount of water, a medium amount of water and a large amount of water is realized while the safe use is ensured, the overall economy and the living quality are considered, a reasonable use mode can be set according to the temperature characteristics of seasons, and the leap of the hot water supply quality of a family is completed.

Drawings

FIG. 1 is a diagram of a hot water supply system for household bathroom fixtures according to the present invention;

FIG. 2 is an electric water heater applied to a hot water supply system of a household bathroom;

fig. 3 is a schematic diagram of the electric water heater applied to the existing toilet.

In the figure: the three-way water heater comprises a three-way pipe (1), a three-way pipe I (2), a one-way valve (3), an electric water heater (4), a power supply (5), a cold water pipe I (6), a hot water pipe I (7), a three-way pipe II (8), a three-way pipe III (9), a gas water heater (10), a washbasin faucet (11), a shower faucet (12), a cold water pipe II (13), a hot water pipe II (14), a hot water pipe III (15), a cold water pipe III (16), a cold water inlet (17), a tap water pipe network (18) and a hot water outlet (19).

Detailed Description

The present invention will be further described with reference to the following examples, but it should not be construed that the scope of the present invention is limited to the following examples. Various substitutions and modifications can be made without departing from the technical spirit of the invention and according to the common technical knowledge and conventional means in the field, and all shall be included in the scope of the invention.

Example 1:

referring to fig. 1, the household bathroom hot water supply system is characterized by comprising an electric water heater 4 and a gas water heater 10 which are connected through a pipeline system. And a washbasin faucet 11 and a shower faucet 12 (both of which are hot and cold water faucets with water mixing functions) for discharging water.

The gas water heater 10 is a domestic gas water heater and must be installed in a well-ventilated living balcony or the like according to the relevant specification requirements. Thus, there is a long connecting line between the gas water heater 10 and the shower faucet 12. The electric water heater 4 is a small-capacity water storage type electric water heater, and the present embodiment selects the existing 'water storage type small kitchen appliance', and the water storage capacity is 7L.

The hot water outlet of the gas water heater 10 is connected to a hot water pipe I7. One end of the hot water pipe I7 is connected with the gas water heater 10, and the other end is connected with a pipe orifice A of the three-way pipe I2. The pipe orifice B of the three-way pipe I2 is connected to the hot water inlet of the shower faucet 12 through a hot water pipe III 15. And the pipe orifice C of the three-way pipe I2 is connected with the pipe orifice C of the three-way pipe 1 after being connected with the one-way valve 3 in series. The check valve 3 can only be communicated from the three-way pipe 1 to the three-way pipe I2.

And a hot water outlet of the electric water heater 4 is connected to a pipe orifice B of the three-way pipe 1. The A pipe orifice of the three-way pipe 1 is connected to a hot water inlet of the washbasin faucet 11 through a hot water pipe II 14.

The cold water inlet of the bath tap 12 is connected with a cold water pipe I6. Two three-way pipes are connected to the cold water pipe I6 in series and are respectively marked as a three-way pipe II8 and a three-way pipe III 9. The three-way pipe II8 is not connected in series with the nozzle of the cold water pipe I6 and is connected to the cold water inlet of the washbasin faucet 11 through the cold water pipe II 13. The three-way pipe III9 is not connected in series with the nozzle of the cold water pipe I6 and is connected to the cold water inlet of the electric water heater 4 through the cold water pipe III 16.

When the washbasin is used and hot water is needed, the washbasin tap 11 is directly turned on, and the hot water in the water storage tank of the electric water heater 4 enters the washbasin tap 11. In the embodiment, the water outlet temperature of the electric water heater 4 is adjustable, and the required water outlet temperature can be obtained by adjusting the mixing ratio of the cold water and the hot water of the washbasin faucet 11.

When bathing and hot water is needed, as in normal gas water heaters, opening the shower faucet 12 causes the gas water heater 10 to fire. The water output from the gas water heater 10 will cause the cold water stored in the hot water line I7 and the hot water line III15 to be discharged from the shower faucet 12. In this embodiment, the hot water in the storage tank of the electric water heater 4 and the cold water stored in the hot water pipe I7 are mixed at the tee pipe I2, so that after the cold water stored in the hot water pipe III15 is discharged, the hot water in the storage tank of the electric water heater 4 and the cold water stored in the hot water pipe I7 are discharged after mixing by the shower faucet 12. It should be noted that the washbasin tap 11 has the characteristics of frequent use and low disposable water consumption (for example, washing hands), and the existing washbasin tap adopts a gas water heater to supply hot water, so that a large amount of cold water needs to be discharged frequently, which causes serious waste. The shower faucet 12 is usually used only during bathing, and has the characteristics of low use frequency and large disposable water consumption. To solve this problem, the electric water heater 4 of the present embodiment is located very close to the shower faucet 12 (installed in a bathroom of a shower, and may be installed under a washbasin with a washbasin faucet 11 in general), so that the hot water pipe III15 is short. After the tap 12 is opened, the shower tap 12 discharges hot water after a very short time (about several seconds) for discharging a small amount of cold water stored in the hot water pipe III15, which is very suitable for a housing installed in a living balcony where a gas water heater is installed, and a toilet. Particularly, the shower faucet 12 does not discharge cold water for a long time when bathing in winter. The system of the embodiment organically combines the hot water for toilet and the hot water for bath, so that the hot water can be rapidly discharged by the two, and waiting and waste are reduced.

Example 2:

referring to fig. 2, an electric water heater applied to a hot water supply system of a household bathroom is characterized in that:

the electric water heater 4 is a small-capacity water storage type electric water heater, the main structures of heating, controlling, storing water and the like of the electric water heater are the same as those of the existing 'small kitchen appliance', the difference is that the electric water heater is provided with three interfaces, and the connection mode is different from that of the existing 'small kitchen appliance', and the electric water heater needs to be matched with a gas water heater for use. The three ports are respectively a cold water inlet 17, an A port of the three-way pipe 1 and a water outlet of the one-way valve 3. The hot water stored in the inner water tank of the electric water heater leads to the port B of the three-way pipe 1. The port C of the three-way pipe 1 is connected with the water inlet of the one-way valve 3 in series.

When the water heater is installed and used, the electric water heater 4 is connected with the gas water heater 10, the washbasin faucet 11 and the bath faucet 12 through a pipeline system.

The hot water outlet of the gas water heater 10 is connected to a hot water pipe I7. One end of the hot water pipe I7 is connected with the gas water heater 10, and the other end is connected with a pipe orifice A of the three-way pipe I2. The pipe orifice B of the three-way pipe I2 is connected to the hot water inlet of the shower faucet 12 through a hot water pipe III 15. The check valve 3 is communicated with a port C of the three-way pipe 1 and a port C of the three-way pipe I2. The one-way valve 3 can only be communicated from the three-way pipe 1 to the three-way pipe I2

The A pipe orifice of the three-way pipe 1 is connected to a hot water inlet of the washbasin faucet 11 through a hot water pipe II 14.

The cold water inlet of the bath tap 12 is connected with a cold water pipe I6. Two three-way pipes are connected to the cold water pipe I6 in series and are respectively marked as a three-way pipe II8 and a three-way pipe III 9. The three-way pipe II8 is not connected in series with the nozzle of the cold water pipe I6 and is connected to the cold water inlet of the washbasin faucet 11 through the cold water pipe II 13. The three-way pipe III9 is not connected in series with the nozzle of the cold water pipe I6 and is connected to the cold water inlet 17 of the electric water heater 4 through the cold water pipe III 16.

When the washbasin is used and hot water is needed, the washbasin tap 11 is directly turned on, and the hot water in the storage tank of the electric water heater 4 enters the washbasin tap 11, as in embodiment 1. In the embodiment, the water outlet temperature of the electric water heater 4 is adjustable, and the required water outlet temperature can be obtained by adjusting the mixing ratio of the cold water and the hot water of the washbasin faucet 11. When bathing and hot water is needed, as in normal gas water heaters, opening the shower faucet 12 causes the gas water heater 10 to fire. The water output from the gas water heater 10 will cause the cold water stored in the hot water line I7 and the hot water line III15 to be discharged from the shower faucet 12. In this embodiment, the hot water in the storage tank of the electric water heater 4 and the cold water stored in the hot water pipe I7 are mixed at the tee pipe I2, so that after the cold water stored in the hot water pipe III15 is discharged, the hot water in the storage tank of the electric water heater 4 and the cold water stored in the hot water pipe I7 are discharged after mixing by the shower faucet 12.

The water heater provided by the embodiment can be applied to the transformation of a bathroom system which is already provided with a gas water heater.

Example 3:

the main structure of this embodiment is the same as that of embodiment 1, and preferably, at least one of the three-way pipe 1 and the three-way pipe I2 is a three-way valve with a valve. As shown in fig. 1, the tee 1 is provided with a valve. The valve can control the mixing proportion of the water discharged by the electric water heater 4 and the gas water heater 10. During debugging, the hot water outlet temperature of the electric water heater 4 and the gas water heater 10 can be adjusted, the shower faucet 12 is turned on, and the opening of the valve is adjusted, so that the hot water in the water storage tank of the electric water heater 4 is just emptied when the hot water of the gas water heater 10 reaches the three-way pipe I2. Before this point, the water discharged from the electric water heater 4 is hot water, and the water from the gas water heater 10 is cold water (the stored water in the hot water pipe I7 and the cold water discharged immediately after the ignition of the gas water heater), and the cold water and the hot water are mixed and supplied to the shower faucet 12. After this time, the hot water of the gas water heater 10 reaches the three-way pipe I2, the outlet water of the electric water heater 4 is cold water, and after the cold water and the hot water are mixed, the water continues to be supplied to the shower faucet 12.

Example 4:

the main structure of this embodiment is the same as that of embodiment 1 or 3, and as a preferable scheme, the electric water heater 4 is a small-capacity electric water heater, and the capacity of the electric water heater is equal to or close to the capacity of the hot water stored in the hot water pipe I7, so that the hot water in the storage tank of the electric water heater 4 can be emptied at the point that the hot water of the gas water heater 10 reaches the three-way pipe I2.

Example 5:

the main structure of this embodiment is the same as that of embodiment 1, and preferably, the electric water heater 4 is not limited to the water storage type, but has an electromagnetic valve for cutting off hot water outlet. The tee pipe I2 is provided with a temperature sensor. When the hot water of the gas water heater 10 reaches the three-way pipe I2, the temperature sensor sends a signal to the electromagnetic valve of the electric water heater 4, and the electric water heater 4 does not provide the hot water to the outside.

Example 6:

the main structure of this embodiment is the same as that of embodiment 5, and further, the electromagnetic valve is a three-way pipe 1 or a three-way pipe I2.

Example 7:

the main structure of this embodiment is the same as embodiment 3, and as a preferable scheme, the electric water heater 4 has a temperature adjusting function. The three-way pipe 1 and the three-way pipe I2 are gating three-way pipes with valves. In summer, when the washbasin faucet 11 does not need to use hot water, the valve of the three-way pipe 1 is adjusted, so that the hot water pipe II14 is closed to supply water, and the check valve 3 is opened. In example 3, the regulating tee 1 was changed to regulating tee I2.

Claims

1. A household bathroom hot water supply system is characterized by comprising an electric water heater (4) and a gas water heater (10) which are connected through a pipeline system;

a hot water outlet of the gas water heater (10) is connected to a hot water pipe I (7); one end of the hot water pipe I (7) is connected with the gas water heater (10), and the other end is connected with the pipe orifice A of the three-way pipe I (2); a pipe orifice B of the three-way pipe I (2) is connected to a hot water inlet of the bath faucet (12) through a hot water pipe III (15); the pipe orifice C of the three-way pipe I (2) is connected with the pipe orifice C of the three-way pipe (1) after being connected with the one-way valve (3) in series; the check valve (3) can only be communicated with the three-way pipe I (2) through the three-way pipe (1);

a hot water outlet (19) of the electric water heater (4) is connected to a pipe orifice B of the three-way pipe (1); the pipe orifice A of the three-way pipe (1) is connected to a hot water inlet of a washbasin faucet (11) through a hot water pipe II (14);

a cold water inlet of the bath tap (12) is connected with a cold water pipe I (6); two three-way pipes are connected to the cold water pipe I (6) in series and are respectively marked as a three-way pipe II (8) and a three-way pipe III (9); the three-way pipe II (8) is not connected in series with the opening of the cold water pipe I (6) and is connected to a cold water inlet of a washbasin faucet (11) through a cold water pipe II (13); the three-way pipe III (9) is not connected in series with the opening of the cold water pipe I (6) and is connected to a cold water inlet of the electric water heater (4) through the cold water pipe III (16).

2. A domestic sanitary hot water supply system according to claim 1, wherein: at least one of the three-way pipe (1) and the three-way pipe I (2) is a three-way valve with a valve.

3. A domestic sanitary hot water supply system according to claim 1, wherein: the electric water heater (4) is a small-capacity electric water heater.

4. A domestic sanitary hot water supply system according to claim 1, wherein: the volume of the electric water heater (4) is equal to or close to the water storage capacity of the hot water pipe I (7).

5. A domestic sanitary hot water supply system according to claim 1, wherein: the electric water heater (4) is provided with a water outlet temperature adjusting switch.

6. A domestic sanitary hot water supply system according to claim 2, wherein: the three-way valve is a solenoid valve.

7. A domestic sanitary hot water supply system according to claim 1, wherein: the electric water heater (4) is powered by a mains supply (5); and is provided with a power supply switch and a valve for controlling the on-off of water inlet.

8. A domestic sanitary hot water supply system according to claim 1, wherein: the washbasin faucet (11) and the bath faucet (12) are both cold and hot water faucets with water mixing function.