CN204555334U - A kind of water-saving device of water heater - Google Patents

Abstract

The utility model provides a water-saving device for a water heater, which comprises a water storage tank (3), a general controller (4), a temperature sensor (5), and a pressure sensor ( 6), normally open solenoid valve (7), normally closed solenoid valve (8). The utility model skillfully realizes the temperature range of the water outlet of the shower nozzle through a series of automatic controls, collects the remaining cold water in the hot water pipe, and achieves the effect of saving water, reflecting the theme and concept of innovation, energy saving and environmental protection; the utility model The principle is simple, the production and installation are simple, the cost is low, and the existing toilet can be quickly transformed and widely promoted; 3. The utility model is easy to use, and the whole device can be controlled by a central control system, which has the characteristics of automation and intelligence.

Description

A water heater water saving device

technical field

The utility model belongs to the field of water heaters, in particular to a water-saving device for water heaters.

Background technique

A water heater refers to a device that raises the temperature of cold water into hot water within a certain period of time through various physical principles. After years of development and strong support from the state, water heaters have become an indispensable type of electrical appliance in every family, and they are also the products that every family relies on most in winter. At present, bathrooms use shower heads or faucets. There is a buffer pipe with a long distance between the shower head or faucet and the hot water outlet of the water heater, and the water in this pipe is close to the room temperature (almost the same) before the water heater is turned on. The reason is that every time the water heater is turned on for heating, the water in this section of the water pipe will not heat up, so every time you want to get the heated water in the water heater, you must first remove the cold water stored in this section of the water pipe. Finished. That is to say, every time hot water is used, the cold water stored in this section of the water pipe must be wasted earlier, resulting in a large waste of water resources. At the same time, because you need to wait for the cold water to run out before you can take a normal shower every time you take a bath, it often causes inconvenience. This is an extremely bad phenomenon and endangers the health of the user.

Therefore, it is very necessary to find a more effective way, while saving this part of cold water, consume the least additional energy, and make it more convenient for users to shower, which serves multiple purposes.

The application number is CN 101893338B29-08, and the Chinese patent titled a solar water heater cold water recycling device and working method discloses a solar water heater cold water recycling device and working method, which enables the recycling of cold water resources from the solar device to the user's faucet. . The device adopts an external circulation pump to circulate cold water, and the installation structure is complicated, and the power consumption is large. And the invalid cold water that this device collects can't be utilized in other occasions.

The notification number is CN 202973483U29-23, and the Chinese patent titled instant water heater discloses a water heater that is ready to use. This kind of water heater generally needs more than 20 or even 30 amperes of current, and the current is relatively large, and the wiring requirements are high, and the installation requirements are also high, and the water output is low, which cannot meet people's needs.

Utility model content

Aiming at the deficiencies in the prior art, the utility model provides a reliable, effective and simple-structured water-saving device for water heaters.

In order to solve the above technical problems, the utility model adopts the following technical solutions:

A water-saving device for a water heater, comprising a water heater body, a hot water pipe connected to the water outlet of the body, and a cold water pipe connected to the water inlet pipe, the hot water pipe and the cold water pipe are connected through a water mixing valve (1), and the nozzle (2 ) communicates with the water outlet of the water mixing valve (1), and a water storage tank (3), a master controller (4), a temperature sensor (5), a pressure A sensor (6), a normally open solenoid valve (7), a normally closed solenoid valve (8); the water storage tank (3) is connected to the water mixing valve (1) and the nozzle (2) through a three-way pipe; the water mixing A temperature sensor (5) is provided between the water outlet of the valve (1) and the interface of the three-way pipe; a normally open solenoid valve (7) is provided between the nozzle (2) and the interface of the three-way pipe; the water storage tank (3) There is a normally closed solenoid valve (8) between the interface with the tee pipe; the master controller (4) includes a control panel (9), an alarm (10), a relay (11), a single-chip microcomputer (12 ); the control panel (9) is provided with a power switch (13), a temperature adjustment button (14), and a digital display (15); respectively connected to the temperature sensor (5), pressure sensor (6), alarm (10), normally open solenoid valve (7), and normally closed solenoid valve (8); the pressure sensor (6) is located in the water storage tank (3) inner bottom.

The distance between the temperature sensor (5) and the normally open solenoid valve (7) and the normally closed solenoid valve (8) is greater than 30cm.

The top of the water storage tank (3) is provided with two water inlets, and the bottom is provided with a water outlet, one of which is connected to the water mixing valve, and a filter screen (31) is provided under the other water inlet, and the upper part of the side wall of the water storage tank is provided with There is an overflow port (32).

The water outlet of the water storage tank (3) is provided with a control valve, and the control valve is connected to the single-chip microcomputer (12) through a circuit.

The suitable temperature range of the shower can be adjusted by the temperature adjustment button on the main controller. If it is lower than this temperature range, the temperature sensor will transmit the signal to the single-chip microcomputer. The single-chip microcomputer and the relay are used in combination to make useless cold water flow to the water storage tank for storage. If it is higher than this temperature The range temperature sensor transmits the signal to the single chip microcomputer, and the single chip microcomputer and the relay are combined to use the superheated water to also flow to the water storage tank for storage, and alarm at the same time, if it is within the temperature range, the user can shower normally, and in a certain sense, suitable hot water is realized immediately. After the water storage tank stores certain useless cold water, the pressure sensor transmits the signal to the single-chip microcomputer, and the single-chip microcomputer relay is used in combination to open the control valve at the water outlet of the water storage tank, and the top water inlet can also receive other domestic waste water, and the filter screen plays a role in filtering waste water function.

The working principle of the utility model device is as follows:

Turn on the power switch button on the main controller of the central device, and set the appropriate temperature range through the temperature adjustment button, such as 40°C to 60°C. The function of this step is that during the shower process, if the temperature is lower than the set lower limit, the colder water will be passed to the water storage tank for storage, and if the temperature is higher than the set upper limit, the superheated water will be passed to the water storage tank for storage, and an alarm will be issued to remind the user to pay attention to the excessive temperature. Adjust the mixing valve to the proper position.

Adjust and open the water mixing valve to a suitable position, the hot water pipe and the cold water pipe start to enter water at the same time; because the hot water pipe often has some cold water remaining, the mixed water flowing out of the water mixing valve is cold water in the first period of time. At this stage, the temperature sensor transmits the signal to the single-chip microcomputer, which indirectly controls the opening of the water pipeline leading to the water storage tank and the closing state of the water pipeline leading to the nozzle, so the mixed cold water flows along the pipeline to the water storage tank to achieve water saving the goal of.

After a period of time, the hot water pipe discharges all remaining cold water and starts to enter the hot water part, and the mixed water reaches the preset temperature range, that is, the mixed hot water flows out through the water mixing valve. At this stage, the temperature sensor transmits the signal to the single-chip microcomputer, which indirectly controls the water delivery pipe leading to the water storage tank to be closed, and the water delivery pipe leading to the nozzle is in an open state, so the mixed cold water flows along the pipe to the nozzle, and the user can operate normally. Taking a bath, in a certain sense, the effect of instant hot water is realized.

The function of the water storage tank is to store the residual cold water discharged from the hot water pipe, and lead to the toilet water tank by the pipeline. The outlet of the pipeline is provided with a normally closed electromagnetic valve, which is controlled by a pressure sensor to open and close. When the water pressure in the water storage tank reaches the preset value, the solenoid valve opens and enters the drainage state. In order to prevent the water storage tank from overloading, an overflow port should be designed so that the water storage tank can work normally under any special circumstances. The water storage tank can also be used for Other domestic wastewater provides storage space. In order to prevent the pipe from being clogged, a strainer should be installed at the top opening.

Compared with the prior art, the utility model has the following characteristics:

1. Through a series of automatic controls, the utility model skillfully realizes the control of the temperature range of the water outlet of the shower nozzle, collects the remaining cold water in the hot water pipe, and achieves the effect of saving water, reflecting the theme and concept of innovation, energy saving, and environmental protection;

2. The utility model is simple in principle, easy to manufacture and install, and low in cost. It can quickly transform existing toilets and widely promote them;

3. The utility model is easy to use, and the entire device can be controlled by a central control system, which has the characteristics of automation and intelligence;

4. The source and destination of water in the water storage tank may not be limited to the water heater, and it is expandable.

5. No circulating pump, less energy consumption, water saving and high efficiency, automatic

Description of drawings

Fig. 1 is the structural representation of the utility model;

Fig. 2 is the structural representation of the control panel of the present utility model;

Fig. 3 is an enlarged view of the structure of the three-way interface of the utility model.

Fig. 4 is a partial enlarged view of the practical water storage tank;

In the figure, water valve 1, nozzle 2, water storage tank 3, master controller 4, temperature sensor 5, pressure sensor 6, normally open solenoid valve 7, normally closed solenoid valve 8, control panel 9, alarm 10, relay 11, Single-chip microcomputer 12, power switch 13, temperature adjustment button 14, digital display screen 15, filter screen 31, overflow port 32.

Detailed ways

Below in conjunction with accompanying drawing and specific embodiment the utility model is described further.

A water-saving device for a water heater, comprising a water heater body, a hot water pipe connected to the water outlet of the body, and a cold water pipe connected to the water inlet pipe, the hot water pipe and the cold water pipe are connected through a water mixing valve (1), and the nozzle (2 ) communicates with the water outlet of the water mixing valve (1), and a water storage tank (3), a master controller (4), a temperature sensor (5), a pressure A sensor (6), a normally open solenoid valve (7), a normally closed solenoid valve (8); the water storage tank (3) is connected to the water mixing valve (1) and the nozzle (2) through a three-way pipe; the water mixing A temperature sensor (5) is provided between the water outlet of the valve (1) and the interface of the three-way pipe; a normally open solenoid valve (7) is provided between the nozzle (2) and the interface of the three-way pipe; the water storage tank (3) There is a normally closed solenoid valve (8) between the interface with the tee pipe; the master controller (4) includes a control panel (9), an alarm (10), a relay (11), a single-chip microcomputer (12 ); the control panel (9) is provided with a power switch (13), a temperature adjustment button (14), and a digital display (15); They are respectively connected to the temperature sensor (5), pressure sensor (6), alarm (10), normally open solenoid valve (7) and normally closed solenoid valve (8); the pressure sensor (6) is located in the water storage tank (3) inner bottom.

The distance between the temperature sensor (5) and the normally open solenoid valve (7) and the normally closed solenoid valve (8) is greater than 30cm.

The top of the water storage tank (3) is provided with two water inlets, and the bottom is provided with a water outlet, one of which is connected to the water mixing valve, and a filter screen (31) is provided under the other water inlet, and the upper part of the side wall of the water storage tank is provided with There is an overflow port (32).

The water outlet of the water storage tank (3) is provided with a control valve, and the control valve is connected to the single-chip microcomputer (12) through a circuit.

The temperature sensor can be a resistance temperature sensor similar to Pt100, and its installation position should be greater than 30cm from the solenoid valve, so that the single-chip microcomputer can receive the signal of the temperature sensor to issue corresponding instructions.

Said pressure sensor should be installed at the bottom of the water storage tank.

The solenoid valve can adopt DC 24V and AC 220V, both of which can basically meet the needs of the site, and are divided into normally open and normally closed solenoid valves.

The single-chip microcomputer can be packaged in STC89C52RC DIP40.

The water storage tank is used to store the remaining cold water in the hot water pipe and other subsequent domestic waste water. The size of the water storage tank will be determined according to the actual situation of the family or dormitory.

The filter screen is generally made of metal or synthetic fiber and placed on the top of the water storage tank for the separation of various fluid substances.

The method of using this device is as follows:

First, turn on the power switch button on the main control switch of the central device, and set the appropriate temperature range through the temperature adjustment button, such as 40°C to 60°C. ; Then, adjust and open the water mixing valve to a suitable position, and if the temperature is suitable, normal showering can be performed. If special circumstances need to shower with cold water, just turn off the power switch button on the main control switch of the central device; the cold water in the water storage tank flows into the toilet water tank through automatic control and uses.

In order to make better use of the water in the water storage tank, the water outlet pipe of the water storage tank can be connected with other water devices, such as a toilet or a mop washing pool, all of which can achieve the purpose of saving water.

When it is used in connection with the toilet, after the water storage tank stores certain useless cold water, the pressure sensor transmits the signal to the single-chip microcomputer, and the single-chip microcomputer is used in combination with the internal program and the relay to open the pipeline that flows from the water storage tank to the toilet tank, supplying water to the toilet and saving water resources , Its top water inlet can also receive other domestic wastewater, and the filter screen plays the role of filtering wastewater.

The above description is the best embodiment of the present utility model, and it is not intended to limit the present utility model in any form. Any simple modifications, equivalent changes and modifications made to the above examples according to the technical essence of the present utility model still fall within the scope of the present invention. Within the protection scope of the present utility model.

Claims (4)

1. a water-saving device of water heater, comprise water heater body, the hot-water line being connected to body delivery port and the cold water pipe be communicated with water inlet pipe, described hot-water line is communicated with by mixed water valve (1) with cold water pipe, shower nozzle (2) is communicated with the delivery port of mixed water valve (1), it is characterized in that: between described mixed water valve (1) and shower nozzle (2), be provided with storage tank (3), master controller (4), temperature sensor (5), pressure sensor (6), normally open solenoid valve (7), normally closed solenoid valve (8); Described storage tank (3) is connected by three-way pipe with mixed water valve (1), shower nozzle (2); Described mixed water valve (1) is provided with temperature sensor (5) between delivery port and the interface of three-way pipe; Normally open solenoid valve (7) is provided with between described shower nozzle (2) and the interface of three-way pipe; Normally closed solenoid valve (8) is provided with between described storage tank (3) and the interface of three-way pipe; Described master controller (4) comprises control panel (9), alarm (10), relay (11), single-chip microcomputer (12); Described control panel (9) is provided with power switch (13), temperature adjustment buttons (14), digital display screen (15); Described control panel (9) is connected with temperature sensor (5), pressure sensor (6), alarm (10), normally open solenoid valve (7), normally closed solenoid valve (8) with single-chip microcomputer (12) respectively by relay (11) successively; Described pressure sensor (6) is positioned at storage tank (3) inner bottom part.

2. water-saving device of water heater as claimed in claim 1, is characterized in that: the distance between described temperature sensor (5) and normally open solenoid valve (7), normally closed solenoid valve (8) is greater than 30cm.

3. water-saving device of water heater as claimed in claim 1, it is characterized in that: described storage tank (3) top is provided with two water inlets, bottom is provided with delivery port, one of them water inlet is communicated with mixed water valve, be provided with screen pack (31) below another one water inlet, storage tank side wall upper part is provided with overfall (32).

4. water-saving device of water heater as claimed in claim 3, it is characterized in that: described storage tank (3) delivery port goes out to be provided with control valve, described control valve is connected with single-chip microcomputer (12) by circuit.