CN104566928A - Water supply pipeline and method for achieving zero cold water and water heater - Google Patents

Abstract

The invention discloses a water supply pipe for realizing zero cold water, a water heater and a method for realizing zero cold water. The water supply pipeline includes a pipe body. A diaphragm is arranged inside the pipe body along the extending direction of the pipe body to divide the pipe body into a first flow path and a second flow path. The diaphragm can be placed between the first flow path and the second flow path. Swinging back and forth, one end of the second flow path is open and the other end is closed, and both ends of the first flow path are open. The water heater includes the above-mentioned pipeline arranged between the water heater body and the water outlet. The method includes: detecting whether the hot water outlet of the water heater body stops outputting hot water to the pipeline; if so, inputting medium into the second flow path of the pipeline, and passing the pressure generated by the medium in the second flow path on the diaphragm Squeeze the diaphragm toward the direction of the first flow path to discharge the hot water in the first flow path from the water outlet. After the water heater is used, the present invention does not store redundant hot water in the pipeline, and realizes the effect of water outlet being hot water.

Description

Water supply pipe for realizing zero cold water, water heater and method for realizing zero cold water

technical field

The invention relates to a drainage pipeline, in particular to a water supply pipeline for realizing zero cold water, a water heater and a method for realizing zero cold water.

Background technique

Existing gas water heaters are generally installed near the gas, such as the kitchen, and the nozzles that use hot water are generally installed in the bathroom. Pipes need to be connected from the outlet of the water heater to the nozzles. When the distance between the bathroom and the kitchen is long, The length of the pipe needs to be extended. Since there is water in the pipeline after the water tap is turned off, the next time it is used, it cannot be heated, and it will directly flow out of the nozzle, resulting in cold water flowing at the beginning, which cannot be used. The longer the pipe, the more cold water comes out.

Existing two schemes in the prior art reduce the storage of cold water. A kind of is to add a cold water circulation pump in the main pipeline, just reheat after the water temperature in the main pipeline is reduced to certain temperature, and start the circulation pump. The other is to directly use an air pump to discharge the remaining hot water through the air out of the pipeline.

For the first method of circulating the hot water in the main pipeline through the circulation pump, first of all, the real zero cold water cannot be fully realized, and even if the user does not use the hot water, the main pipeline remains in the hot water state, waiting for the user to use water, resulting in waste. For the second way of passing the air pump, when the pipeline has some uneven bends, there will often be accumulated water in the pipeline that cannot be blown off.

Contents of the invention

A brief overview of the invention is given below in order to provide a basic understanding of some aspects of the invention. It should be understood that this summary is not an exhaustive overview of the invention. It is not intended to identify key or critical parts of the invention nor to delineate the scope of the invention. Its purpose is merely to present some concepts in a simplified form as a prelude to the more detailed description that is discussed later.

The purpose of the embodiment of the present invention is to provide a zero-cold water supply pipeline capable of draining hot water in the pipeline and realizing hot water immediately when in use, aiming at the defects of the above-mentioned prior art.

Another object of the present invention is to provide a zero-cold water heater and a method for realizing zero-cold water based on the zero-cold water heater.

In order to achieve the above object, the technical scheme that the present invention takes is:

A water supply pipeline for realizing zero cold water, comprising a pipe body, a diaphragm is arranged inside the pipe body along the extension direction of the pipe body, so as to divide the pipe body into a first flow path and a second flow path, and the diaphragm can Swing back and forth between the first flow path and the second flow path, one end of the second flow path is open and the other end is closed, and both ends of the first flow path are open.

The present invention also provides a zero-cold water water heater, which includes a water outlet and a water heater body provided with a hot water outlet. The above-mentioned water supply pipeline for realizing zero cold water is arranged between the water heater body and the water outlet, wherein: One open end of the first flow path is connected to the hot water outlet, and the other open end is connected to the water outlet; the closed end of the second flow path is close to the water outlet, and the open end is connected to the collecting device.

The present invention further provides a method for realizing zero cold water based on the zero cold water water heater, including:

Detecting whether the hot water outlet of the water heater body stops outputting hot water to the first flow path of the water supply pipeline;

If so, then input the medium into the second flow path of the water supply pipeline, and the pressure generated by the medium passing through the second flow path on the diaphragm will squeeze the diaphragm toward the direction of the first flow path, so as to push the diaphragm in the first flow path Hot water is discharged from the water outlet of the water heater.

Compared with prior art, the beneficial effect of the present invention is:

In the present invention, a double-layer pipe structure is arranged. After the water heater is shut down, the cold water in the second flow path squeezes the hot water in the first flow path through the diaphragm, and the hot water is discharged from the nozzle. When the water heater is used next time, the heat in the first flow path The water squeezes the diaphragm, thereby squeezing the cold water in the second flow path, and the cold water flows back to the collecting device, so as to realize the effect of hot water when the water comes out.

Description of drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings that need to be used in the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description are only These are some embodiments of the present invention. For those skilled in the art, other drawings can also be obtained according to these drawings without any creative effort.

Fig. 1 is the pipeline structure schematic diagram that the embodiment of the present invention provides;

Figure 2 is an enlarged view of the I place of Figure 1;

Fig. 3 is A-A direction sectional view in Fig. 1;

Fig. 4 is a schematic structural view of a water heater provided by an embodiment of the present invention;

Fig. 5 is a flow chart of stopping the use of hot water provided by an embodiment of the present invention;

Fig. 6 is a flow chart of starting to use hot water provided by an embodiment of the present invention.

Reference signs:

1-tube body; 2-diaphragm; 3-first flow path; 4-second flow path; 5-capillary; 6-small hole; 7-water heater body; 8-water outlet valve; 9-water supply pipe; 10-collection device 11-inlet valve; 12-water outlet; 13-connecting pipe, 14-hot water outlet.

Detailed ways

In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of embodiments of the present invention, but not all embodiments. Elements and features described in one drawing or one embodiment of the present invention may be combined with elements and features shown in one or more other drawings or embodiments. It should be noted that representation and description of components and processes that are not related to the present invention and known to those of ordinary skill in the art are omitted from the drawings and descriptions for the purpose of clarity. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

Referring to Fig. 1 and Fig. 2, a water supply pipe for realizing zero cold water includes a pipe body 1, and a diaphragm 2 is arranged inside the pipe body 1 along the extending direction of the pipe body 1 to divide the inside of the pipe body 1 into a first flow path 3 and a second flow path 3. The second flow path 4, the diaphragm 2 can swing back and forth between the first flow path 3 and the second flow path 4, one end of the second flow path 4 is open and the other end is closed, and both ends of the first flow path are open.

The water supply pipeline of the present invention can squeeze the medium of the first flow path through the medium of the second flow path, so that the medium in the first flow path does not remain and the purpose of emptying is achieved.

Referring to Figure 1 and Figure 3, when the medium of the first flow path needs to be used, in order to increase the flow rate of the medium in the first flow path, a capillary 5 is provided in the second flow path 4, and small holes 6 are arranged on the capillary 5 at intervals . Evacuate the medium of the second flow path through the capillary as much as possible by setting the capillary.

In this embodiment, in order to ensure that the diaphragm has a certain amount of swing, the diaphragm 2 is a flexible diaphragm. The flexible isolation film is preferably polyimide film material, with about 30% elasticity, high temperature resistance, corrosion resistance, and good wear resistance.

Referring to FIG. 1 and FIG. 3 , in order to empty the medium of the first flow path or the second flow path as much as possible, the diaphragm 2 is attached to the inner wall of the tube body 1 when it is in the state of maximum vibration swing.

Referring to Fig. 4, a zero-cold water water heater includes a water outlet 12 and a water heater body 7 provided with a hot water outlet 14, and a water supply pipeline 9 is arranged between the water heater body 7 and the water outlet 12, wherein: the first flow path 3- The open end is connected to the hot water outlet 14 , and the other open end is connected to the water outlet 12 ; the closed end of the second flow path 4 is close to the water outlet 12 , and the open end is connected to the collecting device 10 .

The hot water pipe used in the water heater of the present invention is a double-channel water pipe, and there is a flexible isolation layer inside the water pipe, which divides the inside of the water pipe into two channels, and the hot water is extruded out of the hot water channel through the extrusion of the medium in the channel, ensuring Hot water is stored inside the pipeline, which provides convenience for the next use of hot water and avoids waste of water resources and energy.

In this embodiment, the water outlet part 12 is a shower head. The spray head can be connected by a hose. The hot water outlet 14 is provided with a water outlet valve 8, which can control the input of hot water or stop the input, and/or, the open end of the second flow path 4 is connected to the inlet valve 11, and the inlet valve 11 is connected to the collector through the connecting pipe 13. device 10. By setting the inlet valve, the flow rate of the medium in the second flow path can be controlled to facilitate the emptying of the hot water in the first flow path.

In this embodiment, the outlet valve 8 is an electric valve, and/or the inlet valve 11 is a solenoid valve with a pump.

It is set as an electric valve, which can realize automatic control.

The present invention also provides a method for emptying pipeline hot water based on the above-mentioned water heater, as shown in FIG. 5 , the method includes:

S101: Detect whether the hot water outlet stops outputting hot water to the water supply pipe;

S102: If yes, input a medium into the second flow path of the water supply pipeline;

S103: Discharging the hot water in the first flow path from the water outlet.

In this method, the pressure generated by the medium passing through the second flow path on the diaphragm presses the diaphragm toward the direction of the first flow path, so as to discharge the hot water in the first flow path from the water outlet.

As shown in Figure 6, the method also includes:

S201: Detect whether there is an instruction input for hot water output;

S202: If yes, output hot water to the first flow path through the hot water outlet;

Outputting hot water to the first flow path through the hot water outlet of the water heater body;

S203: Return the medium in the second flow path to the collection device through its open end.

In this method, the pressure generated by the hot water passing through the first flow path on the diaphragm presses the diaphragm toward the direction of the second flow path, so that the medium in the second flow path is led back to the collecting device through its open end.

Right now:

When using hot water, fill the first flow path with hot water in the main body, press the medium of the second flow path through the diaphragm, and recover the medium of the second flow path to the collection device;

When the hot water is stopped, the medium in the second flow path is filled, the medium in the second flow path squeezes the first flow path, and the hot water in the first flow path is discharged from the nozzle.

In this embodiment, the medium of the second flow path is liquid or gas. Liquid can be cold water or other liquids, also can select gas for use, can reach the effect that the water of hot water pipeline is squeezed out equally.

When the medium is cold water, the collection device is the water supply device, and the second flow path is connected to the water supply device through an external water supply pipeline to increase the pressure of squeezing the first flow path and completely drain the hot water.

The preferred method of the embodiment of the present invention comprises the following steps:

When using hot water, open the water outlet valve, fill the first flow path with hot water in the body, open the inlet valve, start the pump, and completely discharge the cold water from the second flow path. When it is detected that the hot water flow in the first flow path is constant for a period of time, close the electromagnetic valve with the pump and stop the pump;

When you stop using hot water, close the valve of the hot water inlet, and open the inlet valve at the same time, fill the second flow path with cold water, the cold water in the second flow path squeezes the first flow path, and discharge the hot water in the first flow path from the nozzle .

The water heater of the present invention is especially a gas water heater, wherein the hot water pipe used is a double-channel water pipe, and there is a flexible isolation layer inside the water pipe to isolate the hot water channel from the cold water channel. The water outlet of the faucet is connected, the cold water passage is sealed, and the hot water passage is directly connected with the faucet. When using hot water, the water heater injects hot water into the hot water channel, and at the same time opens the cold water return device, so that the hot water fills the entire pipe, and only hot water flows out of the water outlet. After use, cut off the water supply to the hot water passage, start the cold water extrusion passage, thereby extruding the hot water out of the pipe.

With the method of the present invention, when the user uses hot water, the solenoid valve connected to the hot water inlet is opened, and at the same time, the solenoid valve with the pump is opened to start the pump, and the cold water in the second flow path is pumped back to the collection device of the user. , as the hot water enters the first flow path, the flexible isolation membrane is squeezed by the hot water, the electromagnetic valve with the pump, and the capillary, and the cold water quickly returns to the collection device of the user, and the hot water fills the outlet pipe at the same time. The cold water end of the nozzle is sealed, so all the outflow is hot water. When the water heater detects that the water flow is constant for a period of time, the electromagnetic valve with the pump is closed, and the pump stops running.

After the hot water is used, the main control board cuts off the solenoid valve at the outlet of the water heater, and at the same time opens the solenoid valve with the cold water pump. The solenoid valve with the pump here is connected to the external tap water pipe. Under the pressure of the user's water pipe itself, The cold water fills the second flow path, and at the same time squeezes the remaining hot water out of the water outlet, so as to ensure that there is no residual water in the hot water pipeline when the user uses water next time.

Among them, the capillary is to ensure that when the hot water fills the pipeline, all the cold water in the pipeline is drawn back to the collection device. Due to the effect of water pressure, the flexible isolation membrane ensures that when hot water is used, the hot water fills the entire pipeline. Fill the entire line.

In the present invention, after the user uses the water heater, excess hot water is not stored in the pipeline, and the cold water passing through the second flow path squeezes the remaining hot water out of the pipeline, thereby realizing real zero cold water. At the same time, it avoids the waste of water resources and energy, and provides users with satisfactory water solutions.

In the above-mentioned embodiments of the present invention, the serial numbers of the embodiments are only for convenience of description, and do not represent the advantages and disadvantages of the embodiments. The description of each embodiment has its own emphases, and for the part that is not described in detail in a certain embodiment, refer to the relevant descriptions of other embodiments.

In the embodiments of the device and method of the present invention, obviously, each component or each step can be decomposed, combined and/or recombined after decomposing. These decompositions and/or recombinations should be considered equivalents of the present invention. Meanwhile, in the above descriptions of specific embodiments of the present invention, features described and/or shown for one embodiment can be used in one or more other embodiments in the same or similar manner, and combination of features, or replace features in other embodiments.

It should be emphasized that the term "comprising/comprising" when used herein refers to the presence of a feature, element, step or component, but does not exclude the presence or addition of one or more other features, elements, steps or components.

Finally, it should be noted that although the present invention and its advantages have been described in detail above, it should be understood that various changes, substitutions and modifications can be made without departing from the spirit and scope of the present invention defined by the appended claims. transform. Moreover, the scope of the present invention is not limited to the specific embodiments of the procedures, devices, means, methods and steps described in the specification. Those of ordinary skill in the art will readily appreciate from the disclosure of the present invention that existing and future designs that perform substantially the same function or obtain substantially the same results as the corresponding embodiments described herein can be used in accordance with the present invention. The developed process, device, means, method or steps. Accordingly, the appended claims are intended to include within their scope such processes, means, means, methods or steps.

Claims (12)

1. A water supply pipeline for realizing zero cold water, characterized in that it includes a pipe body, and a diaphragm is arranged inside the pipe body along the extension direction of the pipe body to divide the pipe body into a first flow path and a second flow path, The diaphragm can swing back and forth between the first flow path and the second flow path, one end of the second flow path is open and the other end is closed, and both ends of the first flow path are open. 2 . The water supply pipeline for realizing zero cold water according to claim 1 , wherein capillaries are arranged in the second flow path, and small holes are arranged at intervals on the capillaries. 3 . 3. The water supply pipeline for realizing zero cold water according to claim 1 or 2, characterized in that the diaphragm is a flexible diaphragm. 4. The water supply pipeline for realizing zero cold water according to claim 3, characterized in that, the diaphragm is a polyimide film. 5. A zero-cold water water heater, comprising a water outlet and a water heater body provided with a hot water outlet, characterized in that, a water heater according to any one of claims 1-3 is arranged between the water heater body and the water outlet. The water supply pipeline for realizing zero cold water, wherein: one open end of the first flow path is connected to the hot water outlet, and the other open end is connected to the water outlet; the closed end of the second flow path is close to the The water outlet, the open end is connected to the collecting device. 6. The zero cold water water heater according to claim 5, characterized in that the water outlet part is a spray head. 7. The zero cold water water heater according to claim 5 or 6, characterized in that, the hot water outlet is provided with a water outlet valve, and/or, the open end of the second flow path is connected to an inlet valve, and the The inlet valve is connected to the collection device through the connecting pipe. 8. The zero cold water water heater according to claim 7, characterized in that, the outlet valve is an electric valve; and/or, the inlet valve is a solenoid valve with a pump. 9. A method for realizing zero cold water based on the zero cold water water heater according to any one of claims 5-8, characterized in that it comprises: Detecting whether the hot water outlet of the water heater body stops outputting hot water to the first flow path of the water supply pipeline; If so, then input the medium into the second flow path of the water supply pipeline, and the pressure generated by the medium passing through the second flow path on the diaphragm will squeeze the diaphragm toward the direction of the first flow path, so as to push the diaphragm in the first flow path Hot water is discharged from the water outlet of the water heater. 10. The method of claim 9, further comprising: Detect whether there is an instruction input for hot water output; If yes, output hot water to the first flow path through the hot water outlet of the water heater body, and press the diaphragm toward the second flow path by the pressure generated by the hot water passing through the first flow path to the second flow path. The medium in the second flow path is led back to the collection device through its open end. 11. The method of claim 10, further comprising: When it is detected that there is a command input for hot water output; open the water outlet valve and inlet valve, start the pump, and when it is detected that the hot water flow in the first flow path is constant for a period of time, close the solenoid valve with the pump and stop the pump. 12. The method according to any one of claims 9-11, wherein the medium of the second flow path is liquid or gas.