CN210107773U - Water-saving water heater - Google Patents

Water-saving water heater Download PDF

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Publication number
CN210107773U
CN210107773U CN201822172584.7U CN201822172584U CN210107773U CN 210107773 U CN210107773 U CN 210107773U CN 201822172584 U CN201822172584 U CN 201822172584U CN 210107773 U CN210107773 U CN 210107773U
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water
control valve
hot
heater
saving
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CN201822172584.7U
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林宏毅
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林宏毅
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Abstract

The utility model relates to a life electrical apparatus specifically discloses a water-saving water heater. The water-saving water heater comprises a box body, wherein a cold water pipe and a hot water pipe are connected to the box body, the water-saving water heater also comprises at least one group of water outlet assemblies connected with the tail ends of the hot water pipes, and a first control valve is arranged between each water outlet assembly and the corresponding hot water pipe; the water heater also comprises a water storage device communicated with the tail end of the hot water pipe, and a second control valve is arranged between the water storage device and the hot water pipe; the water storage device is internally provided with an air bag made of flexible materials, and the internal pressure of the air bag is greater than the standard air pressure and less than the water pressure in the hot water pipe in a natural state; the water storage device is provided with a water outlet, and a third control valve is arranged at the water outlet. Above water-saving water heater through setting up the water receiver, collects remaining hot water in the hot-water line, under the prerequisite of guaranteeing that the water subassembly in time goes out hot water, reduces the waste of water resource.

Description

Water-saving water heater
Technical Field
The utility model relates to a life electrical apparatus, concretely relates to water-saving water heater.
Background
The electric water heater is a water heater which heats by using electricity as an energy source, and has the largest market share compared with a gas water heater and a solar water heater. The electric water heater can be divided into an instant electric water heater and a water storage type electric water heater, the instant electric water heater can quickly heat water when the water flows in a heating body with higher power, has the advantages of high heating speed, no need of heat preservation, small heat loss, energy saving and power saving, does not need a very large water storage container compared with the water storage type electric water heater, has small volume and light weight, and is the advantage of the instant electric water heater.
The electric water heater is a common electrical appliance in families and hotels, and when the common electric water heater works, a cold water inlet of the water heater is arranged at the bottom of a water tank, and a hot water outlet of the water heater is arranged at the top of the water tank. The hot water has small specific gravity and floats on the water tank, and when the water tank is used, cold water enters from the bottom of the water tank and pushes out the hot water on the water tank, so that the water in the water tank is always full, and the water pressure is always kept at the pipe pressure of the water pipe.
However, since there is a distance between the outlet of the water heater and the end of the hot water (for example, the shower head), a pipeline is required to be connected, and the pipeline is exposed to the air, so that when the water heater is used, people need to drain the cold water in the pipeline until the hot water appears and then use the water, and therefore the cold water in the hot water pipeline is wasted. This is not only the case in China, but also the case in developed countries such as Europe and America. This cold water may be insignificant for a single person bath, but for 60 million people worldwide, there will be hundreds of tons of fresh water lost each year. In addition, with the improvement of living standard of people, the demand of hot water is expanded from bathing to domestic water such as a kitchen, the hot water pipeline exposed outside is increased from single-outlet installation to multi-outlet installation, and the hot water in the pipeline is quickly changed into cold water due to heat conduction. When a user uses hot water, cold water in the hot water pipeline is wasted, and therefore waste of water resources is caused.
At present, people basically have two ideas aiming at the problem, one is to recycle cold water flowing out of a hot water pipe to one side of a cold water pipe, and the other is to select to heat the cold water flowing out of the hot water pipe again. Aiming at the first thought, the grant notice No. CN 205536500U discloses a micro electric water heater, which is provided with a water return device, comprises a water return temporary storage tank, a micro water return pump and a micro water guide pump, and cold water in a hot water pipeline is discharged into a cold water pipeline by the pump through temperature control; in view of the second idea, publication No. CN 204460741U discloses a cold water reheating device in a hot water pipe, in which the power of an immersion heating pipe corresponds to the quality of the existing cold water, so that the cold water in the hot water pipe is reheated and utilized.
Disclosure of Invention
The to-be-solved technical problem of the utility model is to provide a water-saving water heater, through setting up the water receiver, collect remaining hot water in the hot-water line, under the hydrothermal prerequisite is in time gone out to the assurance water subassembly, reduce the waste of water resource.
In order to solve the technical problem, the utility model provides a technical scheme as follows: a water-saving water heater comprises a box body, wherein a cold water pipe and a hot water pipe are connected to the box body, the water-saving water heater also comprises at least one group of water outlet assemblies connected with the tail ends of the hot water pipes, and a first control valve is arranged between each water outlet assembly and the corresponding hot water pipe;
the water heater also comprises a water storage device communicated with the tail end of the hot water pipe, and a second control valve is arranged between the water storage device and the hot water pipe; an air bag made of flexible material is arranged in the water storage device,
in a natural state, the internal pressure of the air bag is smaller than the water pressure in the hot water pipe; the water storage device is provided with a water outlet, and a third control valve is arranged at the water outlet.
When hot water is used, the second control valve is firstly opened, the cold water remained in the hot water pipe enters the water storage device because the air pressure in the air bag is lower than the water pressure in the water pipe, then the second control valve is closed, the first control valve is opened, and the hot water can be directly discharged from the water outlet assembly because the cold water remained in the hot water pipe enters the water storage device. When the third control valve is opened, the cold water in the water receiver is discharged and utilized under the action of the pressure of the air bag.
Preferably, the water outlet assembly is communicated with the cold water pipe, and a fourth control valve is arranged between the water outlet assembly and the cold water pipe, so that the effect that the water outlet assembly simultaneously outputs cold water and hot water is realized.
Preferably, the air bag further comprises a pressure regulating device for regulating the air pressure in the air bag, and the water outlet of the water reservoir is communicated with the cold water pipe. With the aid of the pressure regulating device, the cold water stored in the water receiver returns to the cold water pipe and is discharged or returns to the box body at the water outlet assembly.
Preferably, the second control valve is an electric control valve; the control system comprises an electromagnetic relay for controlling the opening time of the second control valve, and the working time of the electromagnetic relay is reasonably set according to the amount of residual hot water in the hot water pipe.
Preferably, the first control valve and the second control valve are electric control valves; also comprises a control system which is used for controlling the operation of the electric motor,
when a user issues a first control valve opening instruction, the control system works, the second control valve is closed after being opened for a specified time, and then the first control valve is controlled to be opened.
Preferably, the third control valve and the fourth control valve are electric control valves; the control system also comprises a pressure sensor for detecting the air pressure in the air bag;
when the fourth control valve is opened, the control system works to control the third control valve to be opened and simultaneously pressurize the pressure regulating device;
and controlling the third control valve to close until the feedback pressure of the pressure sensor reaches a preset value, and simultaneously releasing the pressure by the pressure regulating device.
Preferably, the control system comprises a PLC controller.
Drawings
Fig. 1 is a schematic structural view of a water-saving water heater according to a first embodiment of the present invention;
FIG. 2 is a schematic view showing a water storage process of a water-saving type water heater according to a first embodiment of the present invention;
fig. 3 is a schematic structural view of a water-saving water heater according to a second embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Example one
As shown in fig. 1, the water-saving water heater comprises a tank body 1, wherein the tank body 1 is connected with a cold water pipe 2 and a hot water pipe 3, and further comprises at least one group of water outlet assemblies connected with the tail ends of the hot water pipes 3, and a first control valve 5 is arranged between each water outlet assembly and the corresponding hot water pipe 3; the water outlet assembly is communicated with the cold water pipe 2, and a fourth control valve 4 is arranged between the water outlet assembly and the cold water pipe 2, so that the effect that the water outlet assembly simultaneously outputs cold water and hot water is achieved.
The water heater also comprises a water storage device 9 communicated with the tail end of the hot water pipe 3, and a second control valve 6 is arranged between the water storage device 9 and the hot water pipe 3; the second control valve 6 is an electric control valve.
As shown in fig. 2, a bladder 91 made of flexible material is arranged in the water reservoir 9, and in a natural state, the internal pressure of the bladder 91 is greater than the standard air pressure and less than the water pressure in the hot water pipe 3; the water storage device 9 is provided with a water outlet 7, and a third control valve 8 is arranged at the outlet of the water outlet 7.
Still include control system, control system including being used for controlling the electromagnetic relay of 6 opening times of second control valve, according to the hot-water requirement of remaining in the hot-water line 3, rationally set up electromagnetic relay's operating time.
When hot water is used, the second control valve 6 is first opened, as shown in fig. 2, since the air pressure in the air bag 91 is lower than the water pressure in the water pipe, the cold water remaining in the hot water pipe 3 enters the water reservoir 9, and then, the second control valve 6 is closed, the first control valve 5 is opened, and since the cold water remaining in the hot water pipe 3 enters the water reservoir 9, it is possible to realize direct hot water discharge at the water discharge assembly. When the third control valve 8 is opened, the cold water in the reservoir 9 is discharged and utilized under the pressure of the air bag 91.
Example two
Compared with the first embodiment, the present embodiment is different in that a pressure regulating device (not shown in the figure, and an external cylinder communicated with the air bag 91 may be selected) is further included to regulate the air pressure in the air bag 91, and as shown in fig. 3, the water outlet 7 of the water reservoir 9 is communicated with the cold water pipe 2. With the aid of the pressure regulating device, the cold water stored in the water receiver 9 returns to the cold water pipe 2 and is discharged or returned to the tank body 1 at the water outlet assembly.
The first control valve 5, the second control valve 6, the third control valve 8 and the fourth control valve 4 are all electric control valves. The device also comprises a control system, wherein the control system comprises a PLC controller.
When a user issues an opening instruction of the first control valve 5, the control system works, the second control valve 6 is closed after being controlled to be opened for a specified time, and then the first control valve 5 is controlled to be opened.
The control system also comprises a pressure sensor for detecting the air pressure in the air bag 91;
when the fourth control valve 4 is opened, the control system works to control the third control valve 8 to be opened, and meanwhile, the pressure regulating device pressurizes;
until the feedback pressure of the pressure sensor reaches a preset value, the third control valve 8 is controlled to be closed, and meanwhile, the pressure regulating device releases pressure.
Above water-saving water heater through setting up the water receiver, collects remaining hot water in the hot-water line, under the prerequisite of guaranteeing that the water subassembly in time goes out hot water, reduces the waste of water resource.
In summary, the above description is only a preferred embodiment of the present invention and should not be taken as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principles of the present invention should be included within the scope of the present invention.

Claims (7)

1. A water-saving water heater comprises a box body (1), wherein a cold water pipe (2) and a hot water pipe (3) are connected to the box body (1), the water-saving water heater also comprises at least one group of water outlet components connected with the tail end of the hot water pipe (3), and a first control valve (5) is arranged between the water outlet components and the hot water pipe (3);
the method is characterized in that: the water heater also comprises a water storage device (9) communicated with the tail end of the hot water pipe (3), and a second control valve (6) is arranged between the water storage device (9) and the hot water pipe (3); an air bag (91) made of flexible material is arranged in the water storage device (9),
in a natural state, the internal pressure of the air bag (91) is smaller than the water pressure in the hot water pipe (3); the water storage device (9) is provided with a water outlet (7), and a third control valve (8) is arranged at the water outlet (7).
2. A water-saving water heater according to claim 1, wherein: the water outlet assembly is communicated with the cold water pipe (2), and a fourth control valve (4) is arranged between the water outlet assembly and the cold water pipe (2).
3. A water-saving water heater according to claim 1 or 2, wherein: the water storage device is characterized by further comprising a pressure regulating device for regulating air pressure in the air bag (91), and a water outlet (7) of the water storage device (9) is communicated with the cold water pipe (2).
4. A water-saving water heater according to claim 2, wherein: the second control valve (6) is an electric control valve; the control system comprises an electromagnetic relay for controlling the opening time of the second control valve (6).
5. A water-saving water heater according to claim 3, wherein: the first control valve (5) and the second control valve (6) are electric control valves; also comprises a control system which is used for controlling the operation of the electric motor,
when a user issues an opening instruction of the first control valve (5), the control system works, the second control valve (6) is controlled to be opened for a specified time and then closed, and then the first control valve (5) is controlled to be opened.
6. A water-saving water heater according to claim 5, wherein: the third control valve (8) and the fourth control valve (4) are electric control valves; the control system also comprises a pressure sensor for detecting the air pressure in the air bag (91);
when the fourth control valve (4) is opened, the control system works to control the third control valve (8) to be opened, and meanwhile, the pressure regulating device pressurizes;
until the feedback pressure of the pressure sensor reaches a preset value, the third control valve (8) is controlled to be closed, and meanwhile, the pressure regulating device releases pressure.
7. A water-saving water heater according to claim 5 or 6, wherein: the control system comprises a PLC controller.
CN201822172584.7U 2018-12-24 2018-12-24 Water-saving water heater Active CN210107773U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201822172584.7U CN210107773U (en) 2018-12-24 2018-12-24 Water-saving water heater

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201822172584.7U CN210107773U (en) 2018-12-24 2018-12-24 Water-saving water heater

Publications (1)

Publication Number Publication Date
CN210107773U true CN210107773U (en) 2020-02-21

Family

ID=69530006

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201822172584.7U Active CN210107773U (en) 2018-12-24 2018-12-24 Water-saving water heater

Country Status (1)

Country Link
CN (1) CN210107773U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112460667A (en) * 2020-11-26 2021-03-09 珠海格力电器股份有限公司 Voltage stabilization structure and thermodynamic system

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112460667A (en) * 2020-11-26 2021-03-09 珠海格力电器股份有限公司 Voltage stabilization structure and thermodynamic system

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