CN102620431A - Water saving device applicable to various water heaters - Google Patents

Abstract

The invention relates to a water saving device of a water heater, in particular to a water saving device applicable to various water heaters, and belongs to the field of energy saving equipment. The water saving device applicable to various water heaters comprises a temperature control linkage device and a negative pressure device, wherein a hot water outlet is closed or connected by the temperature control linkage device by sensing temperature of a water flow in a hot water pipeline, and the negative pressure device is driven or stopped at the same time. According to the water saving device, intelligent operation is realized in a physical or mechanical mode as much as possible; and the water saving device has a simple structure and has higher universality for different types of water heaters.

Description

A water-saving device suitable for various types of water heaters

technical field

The invention relates to a water-saving device for a water heater, in particular to a water-saving device applicable to various types of water heaters, and belongs to the field of energy-saving equipment.

Background technique

In recent years, with the continuous progress of energy science, the energy conversion technology of water heaters has been greatly developed, but no matter what method of energy conversion water heaters are used, almost all of them have the same problem in the specific use process: The original cold water in the hot water outlet pipeline cannot be effectively used conveniently, and users often need to let go of a large amount of cold water before obtaining the first pot of hot water. According to research, in an ordinary residential building with 300 residents, if each household draws water three times a day, the total amount of cold water that needs to be released in advance will reach more than 500 tons per year.

As for how to effectively utilize the original cold water in the outlet pipe of the water heater, there have been many methods in the prior art, such as the Chinese invention patent "Solar water heater water-saving device" (application number 200710053319.0), the Chinese invention patent "Temperature-controlled water Device" (application number 201010510778.9), Chinese utility model patent "water-saving device for gas water heater" (application number 201020634666. Most of the methods need to set up a special return pipeline between the water outlet and the water heater, and install a water storage box at an appropriate position. It is difficult to be universal for different types of water heaters, and requires a relatively complicated control circuit or even manual operation. It is relatively difficult to realize and the operability is low. the

Invention content

The technical problem to be solved by the present invention is to provide a new type of water-saving device, which can easily, safely and automatically recycle the original cold water in the water outlet pipeline no matter what type of water heater it is aimed at, without the need for additional storage. The water box has simple structure, low cost and convenient installation and use.

In order to solve the above technical problems, the present invention proposes a water-saving device installed at the user's water intake end, which physically separates the water-saving device from the water heater itself, and uses the internal circulation between the cold/hot water pipes at the water intake end to achieve energy saving. Water purpose, thus achieving high versatility. the

For realizing above technical purpose, the present invention will take following technical scheme:

A water-saving device suitable for various types of water heaters, installed at the user's water intake, including a hot water interface, a cold water interface, a hot water outlet, and a cold water outlet. The hot water interface is connected to the hot water pipe at the water intake, and the cold water interface It is connected to the cold water pipe at the water intake, the hot water outlet is connected to the hot water end of the user’s cold/hot water faucet, the cold water outlet is connected to the cold water end of the user’s cold/hot water faucet, and the hot water interface is connected to the hot water outlet. A first channel is formed, a second channel is formed between the cold water interface and the cold water outlet, a third channel is formed between the hot water interface and the cold water interface, and a temperature control linkage device and a negative pressure device are also included. The temperature control linkage The device is set in the first channel, the negative pressure device is set in the third channel, and the temperature control linkage device closes or conducts the hot water outlet according to the temperature of the water flow in the first channel. When the first channel is blocked, the negative pressure device is powered on, and when the first channel is connected, the negative pressure device is powered off and shut down.

The temperature control linkage device includes: an opening and closing device and a contact switch, the opening and closing device includes an L-shaped bimetallic piece and a multi-impeller device, and the L-shaped bimetallic piece can move up and down and is arranged in the first channel Inside, the upper end of the L-shaped bimetallic sheet is fixedly connected to the moving contact of the contact switch through a strut, and the lower end of the L-shaped bimetallic sheet is a heat-deformable end, and the heat-deformable end is attached to the multi-impeller blade. The negative pressure device is connected to a power supply through the contact switch to form a driving circuit. the

The negative pressure device is a water pump, the water inlet end of the water pump is connected to the side of the third channel near the hot water interface, and the water outlet end of the water pump is connected to the side of the third channel near the cold water interface. the

The power supply can be a dry battery or a rechargeable battery, and can also be connected to an external power supply. the

The water-saving device adopts physical and mechanical methods as much as possible to realize intelligent operation, has a simple structure, and has high versatility for different types of water heaters. the

Description of drawings

Fig. 1 is the structural representation of device of the present invention;

Fig. 2 is a schematic diagram of the principle of the device of the present invention;

1. Hot water interface; 2. Cold water interface; 3. Hot water outlet; 4. Cold water outlet; 5. Water pump; 6. Temperature control linkage device; 7. Dry battery; 8. First channel; 9. Second channel; 10. The third channel; 61. Multi-impeller; 62. L-shaped bimetal; 63. Contact switch.

Detailed ways

The above-mentioned water-saving device applicable to various types of water heaters, wherein the control system includes an opening and closing device and a contact switch that are mechanically linked by sensing water temperature.

Wherein, the opening and closing device is used to sense the flow of water flow when the user turns on the hot water tap, and is driven by the water flow to contact the L-shaped bimetal sheet (when the water temperature is too low), and utilizes the water in the water pipe to The pressure drives the L-shaped bimetal to move downward for a certain distance, so that the contact switch is closed, and at the same time, the opening and closing device closes the hot water outlet to complete the control action. the

The above-mentioned water-saving device applicable to various types of water heaters, wherein the power system includes: a water pump and a power supply.

Wherein, the water pump is connected to the power supply through the contact switch to form a driving circuit, and the circuit is in an open state under normal circumstances, and only when the contact switch is in a closed state, the power supply drives the water pump to start rotating . the

The water inlet of the water pump is connected to the hot water interface, and the water outlet of the water pump is connected to the cold water interface. When the control system completes the control action, the hot water interface, water pump, cold water interface, An internal circulation is formed between the water heaters. Since the water pressures in the circulation are equal, the original cold water in the water heater outlet pipeline can be easily sent back to the water heater by the water pump for cyclic heating. the

The L-shaped bimetal gradually deforms as the water temperature increases, and the part where the metal is in contact with the opening and closing device will automatically disengage after the water temperature reaches the set value, and the L-shaped bimetal returns to the original position. In the original position, the contact switch is disconnected, the control system stops working, the power system stops working, and the opening and closing device no longer closes the hot water due to the limit of the L-shaped bimetal At the exit, the user’s hot water faucet starts to produce hot water; after the user shuts off the hot water faucet, he does not take water for a long time, and as the water temperature gradually decreases, the L-shaped bimetal gradually loses its deformation, and the entire water-saving device returns to its original initial state , waiting for the user's next operation. If the user continues to take water after shutting off the faucet for a short period of time, the L-shaped bimetal sheet remains deformed because the water temperature in the water-saving device is still high, and the first channel will directly discharge hot water, so the water-saving device will not and does not need to work . the

In order to ensure the stability and reliability of the water-saving device, and also considering that the water intake end of the user is generally unable to connect to an external power supply, the water-saving device uses physical and mechanical methods to achieve intelligent operation as much as possible, so as to ensure the water-saving device. The water device can also work for a long time accumulatively under the drive of the built-in dry battery or rechargeable battery. the

Claims (4)

1. water saving fixtures that are applicable to various water heater; Be installed in user's intake, comprise interface of hot water (1), cold water interface (2), hot water outlet (3), cooling water outlet (4), said interface of hot water (1) links to each other with water intaking place hot-water line; Said cold water interface (2) links to each other with water intaking place cold water pipe; Said hot water outlet (3) links to each other with the hot water end of user's cold/hot water tap, and said cooling water outlet (4) links to each other with the cold water end of user's cold/hot water tap, forms first passage (8) between said interface of hot water (1) and the hot water outlet (3); Form second channel (9) between said cold water interface (2) and the cooling water outlet (4); Form third channel (10) between said interface of hot water (1) and the cold water interface (2), it is characterized in that: also comprise temperature control linkage and negative pressure device, said temperature control linkage is arranged in the said first passage (8); Said negative pressure device is arranged in the said third channel (10); Said temperature control linkage is according to current temperature closure or conducting hot water outlet (3) in the induction first passage (8), and when said first passage (8) was obstructed, said negative pressure device got electric startup; When said first passage (8) conducting, said negative pressure device dead electricity is shut down.

2. a kind of water saving fixtures that are applicable to various water heater according to claim 1; It is characterized in that: said temperature control linkage comprises: closing device and contact switch (63); Said closing device comprises L shaped bimetal leaf (62) and leafy wheel apparatus (61); Said L shaped bimetal leaf (62) is moving up and down to be arranged in the said first passage (8); The upper end of L shaped bimetal leaf (62) connects the moving contact of said contact switch (63) through strut fixation, and L shaped bimetal leaf (62) lower end is the thermal deformation end, and the blade of said thermal deformation end and said leafy wheel apparatus (61) is fitted and is provided with; Said negative pressure device links to each other with power supply (7) through said contact switch (63), forms drive circuit.

3. a kind of water saving fixtures that are applicable to various water heater according to claim 1; It is characterized in that: said negative pressure device is water pump (5); Said water pump (5) water inlet end connects third channel (10) and leans on interface of hot water (1) one side, and water pump (5) water side connects third channel (10) and leans on cold water interface (2) one sides.

4. a kind of water saving fixtures that are applicable to various water heater according to claim 1 is characterized in that: said power supply (7) can be dry cell or rechargeable battery, also can connect external power source.

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