CN205481794U - Zero cold water heating water system - Google Patents

Abstract

The utility model discloses a zero-cold water hot water supply system, which comprises a heater, a booster pump is connected in series at the water inlet side or the water outlet side of the heater, and a hot water outlet is connected to the water outlet side of the heater. Water pipe, the water inlet end of the booster pump is connected with a cold water inlet pipe, the middle position of the cold water inlet pipe is connected with a water point cold water pipe, and a one-way reversing valve is arranged on the water point cold water pipe, and the A temperature-controlled reversing valve is connected between the cold water pipe of the water point and the hot water outlet pipe, and the temperature-controlled reversing valve is also connected with a water outlet pipe of the water point; In the case of slow water, through reasonable structural improvement, especially through the improvement of the pipeline and the design of the temperature control reversing valve and the one-way reversing valve, the cold water in the water heater can be fully heated before the water is discharged, and the real zero cold water is realized. Greatly saves water.

Description

A zero cold water hot water supply system

technical field

The utility model relates to water heater technology, in particular to a zero cold water hot water supply system.

Background technique

Hot water devices such as gas water heaters or electric water heaters are generally installed in the kitchen or balcony, and the bathing water is in the bathroom. There is a certain distance from the kitchen or balcony to the bathroom. The cold water in the pipe must first be discharged before the hot water can flow out. The longer the pipe, the more cold water flows out, and the greater the waste of water resources.

The method of realizing zero cold water in the prior art is to add a circulating water pump inside the gas water heater or in the pipeline, and when the temperature sensor detects that the temperature difference between the water temperature in the tube and the temperature set by the user is greater than the set value, the circulating water pump works to circulate and heat the cold water in the tube, Hot water is output from the shower until the deviation between the water temperature in the pipe and the temperature set by the user is less than the set value.

The control system required by the above method is relatively complicated, and must be equipped with a return water pipeline, which involves many parameters, is difficult for users to operate, and consumes a lot of energy.

Contents of the invention

In order to overcome the deficiencies of the prior art, the utility model provides a zero cold water hot water supply system.

The technical scheme that the utility model solves its technical problem adopts is:

A zero-cold water hot water supply system, comprising a heater, a booster pump connected in series at the water inlet side or outlet side of the heater, a hot water outlet pipe connected to the water outlet side of the heater, the booster pump The water inlet end of the pressure water pump is connected with a cold water inlet pipe, and the middle position of the cold water inlet pipe is connected with a water point cold water pipe, and a one-way reversing valve is arranged on the water point cold water pipe, and the water point cold water pipe and A temperature-controlled reversing valve is connected between the hot water outlet pipes, and the temperature-controlled reversing valve is also connected with a water point outlet pipe.

As a preferred option, a controller and a remote controller are also included, and the controller is connected with the heater and the booster water pump.

As a preferred option, a temperature sensor is built-in at the side of the temperature-controlled reversing valve near the hot water outlet pipe.

The beneficial effects of the utility model are: the system aims at the waste of cold water and the slow flow of hot water when the water heater needs to bathe. The design of the reversing valve enables the cold water in the water heater to be fully heated before being discharged, realizing zero cold water discharge, which greatly saves water, and the structure is simple and easy to use, and the operation is simple, which is conducive to the popularization and application of technology.

Description of drawings

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

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

detailed description

In order to make the purpose, technical solution and advantages of the present application clearer, the utility model will be further described in detail below in conjunction with the accompanying drawings and embodiments. In the ensuing description, some specific details are referred to in order to provide a thorough understanding of the present invention. While the present invention may still be practiced without these specific details, the descriptions and representations herein are used by those skilled in the art to effectively convey the substance of their work to others skilled in the art. In addition, it should be noted that the words "left end", "right end", "upper end" and "lower end" used in the following description refer to the directions in the drawings, and the words "inner" and "outer" refer to the direction toward or The direction far away from the geometric center of a specific component, and those skilled in the art who make simple adjustments to the above directions without creativity should not be understood as technologies outside the scope of protection of this application. It should be understood that the specific embodiments described here are only used to explain the present application, and are not used to limit the actual protection scope. However, for the purpose of avoiding obscuring the present invention, well-known techniques such as manufacturing methods, control procedures, component dimensions and circuit arrangements have not been described in detail since they are readily understood. Referring to Fig. 1, a zero-cold water hot water supply system includes a heater 1, a booster pump 2 is connected in series at the water inlet or outlet side of the heater 1, and a water outlet pump 2 is connected to the water outlet of the heater 1. The hot water outlet pipe 3, the water inlet end of the booster water pump 2 is connected with a cold water inlet pipe 4, the middle position of the cold water inlet pipe 4 is connected with a water point cold water pipe 5, and the water point cold water pipe 5 is provided with There is a one-way reversing valve 6, a temperature control reversing valve 7 is connected between the cold water pipe 5 of the water point and the hot water outlet pipe 3, and the temperature control reversing valve 7 is also connected with an outlet pipe 8 of the water point. That is, the temperature control reversing valve 7 is connected in series with the hot water outlet pipe 3 far from the water point, and the other end is connected with the cold water pipe 5 as the water point. Reversing valve 6, cold water inlet pipe 4 is connected with external water, and communicates with water point cold water pipe 5. The outlet pipe 8 at the water point can be connected with a shower, a faucet, etc.

In actual use, the user starts the water heater, opens the shower water valve, starts the booster water pump 2, and the cold water enters the heater 1 of the water heater through the cold water inlet pipe 4, and the water heater starts to work officially, and at this time, the hot water outlet pipe 3 reaches the temperature. The water between the temperature control reversing valve 7 is still cold water, that is, the temperature of the water passing through the temperature control reversing valve 7 will be lower than the set temperature at this time. At this time, the temperature control reversing valve 7 is turned on by the cold water pipe 5 of the water point, and the temperature control reversing valve 7 is closed by the outlet pipe 8 of the water point, so that the cold water is passed through the temperature control reversing valve 7 by the cold water pipe 5 of the water point. One side flows into the cold water pipe 5 of the water point and returns to the heater 1 place for heating after entering the cold water inlet pipe 4. The water heater circulates and heats the cold water in the pipe until the water temperature at the temperature control reversing valve 7 reaches the set temperature. One side is opened, and hot water enters the outlet pipe 8 of the water point through the temperature control reversing valve 7 and flows out. At this time, the user can close the booster water pump 2. On the water point cold water pipe 5, the one-way reversing valve 6 on one side of the temperature control reversing valve 7 plays to limit the flow direction, preventing water from flowing back to the temperature control reversing valve 7 one ends through the water point cold water pipe 5.

For another embodiment, refer to a zero-cold water hot water supply system in FIG. 1 , wherein the “embodiment” referred to here refers to specific features, structures or characteristics that may be included in at least one implementation of the present application. "In an embodiment" appearing in different places in this specification does not all refer to the same embodiment, nor is it a separate or selective embodiment that is mutually exclusive with other embodiments. The embodiment includes a heater 1, a booster water pump 2 is connected in series at the water inlet side of the heater 1, a hot water outlet pipe 3 is connected to the water outlet side of the heater 1, and the inlet of the booster water pump 2 The water end is connected with a cold water inlet pipe 4, and the middle position of the cold water inlet pipe 4 is connected with a water point cold water pipe 5, and the water point cold water pipe 5 is provided with a one-way reversing valve 6, and the water point cold water pipe 5 and the hot water outlet pipe 3 are connected with a temperature control reversing valve 7, the temperature control reversing valve 7 is also connected with a water point outlet pipe 8, and also includes a controller 9 and a remote controller 10, the controller 9 is connected with the heater 1 and the booster water pump 2, and the heater 1 and the booster water pump 2 can be started by the remote controller 10, which is convenient to use. The temperature control reversing valve 7 is equivalent to a kind of three-way valve, and the temperature control reversing valve 7 has a water inlet near the hot water outlet pipe 3 side and two water outlet pipes 8 near the water point cold water pipe 5. At the water outlet end, the temperature control reversing valve 7 is built with a temperature sensor on the side of the hot water outlet pipe 3, and the temperature sensor can sense the temperature of the incoming water to drive the sliding module of the temperature control reversing valve 7 to open or close the heating and cooling. Water outlet. When the water inlet temperature is lower than the set temperature, the cold water pipe 5 of the water point is turned on, and the outlet pipe 8 of the water point is cut off; guide through.

According to the above principles, the utility model can also make appropriate changes and modifications to the above embodiments. Therefore, the utility model is not limited to the specific embodiments disclosed and described above, and some modifications and changes to the utility model should also fall within the scope of protection of the claims of the utility model.

Claims (3)

1. A zero-cold water hot water supply system, comprising a heater (1), a booster pump (2) connected in series at the water inlet or outlet side of the heater (1), the heater (1 ) is connected to a hot water outlet pipe (3), and the water inlet end of the booster pump (2) is connected to a cold water inlet pipe (4), which is characterized in that: the middle position of the cold water inlet pipe (4) There is a water point cold water pipe (5) connected at the water point, and a one-way reversing valve (6) is arranged on the water point cold water pipe (5), and the water point cold water pipe (5) and the hot water outlet pipe (3) A temperature-controlled reversing valve (7) is connected between them, and the temperature-controlled reversing valve (7) is also connected with a water point outlet pipe (8). 2. A zero cold water hot water supply system according to claim 1, characterized in that it also includes a controller (9) and a remote controller (10), the controller (9) and the heater (1) , Booster water pump (2) connection. 3. The zero-cold water hot water supply system according to claim 1, characterized in that: a temperature sensor is built into the temperature control reversing valve (7) on the side close to the hot water outlet pipe (3).