CN112944665A

CN112944665A - Water heater

Info

Publication number: CN112944665A
Application number: CN201911267050.5A
Authority: CN
Inventors: 闻林
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-12-11
Filing date: 2019-12-11
Publication date: 2021-06-11

Abstract

The invention discloses a water heater, which comprises a water inlet, a water outlet and a water using pipeline connected with the water outlet, wherein the water heater also comprises a heating device used for heating water in the water using pipeline. The heating device is an electric heating wire, and the water heater provided by the invention adopts the mode that the electric heating wire is spirally wound on the outer side of the water using pipeline, so that the stored water in the water using pipeline can be quickly heated, and the purpose that hot water flows out when a user opens the water using valve is achieved; the water temperature information in the water using pipeline can be obtained by arranging a temperature sensor on the water using pipeline; meanwhile, the heating device and the temperature sensor are connected with the control device, so that the heating device, the temperature sensor and the control device form feedback regulation, and the water temperature in the water using pipeline can be automatically and accurately controlled.

Description

Water heater

Technical Field

The invention relates to the technical field of water heaters, in particular to a water heater which is used by a user without discharging cold water in a water pipe and directly discharges hot water by opening a water valve.

Background

In the beginning stage of using the common gas water heater, cold water in the gas water heater and a water outlet pipeline needs to be discharged firstly, and then hot water can be normally used. This has the problems that: 1. waste of water resources is caused; 2. hot water cannot be directly discharged, and a user needs to wait.

Some technical workers have proposed the water-saving and energy-saving gas water heater aiming at the problems, for example, Chinese scientific literature provides a water-saving and energy-saving gas water heater, which can shorten the time for waiting for hot water flowing out of a water outlet pipe and is beneficial to saving water resources and gas resources. This gas heater sets up preheating system on prior art basis mainly, and this preheating system is including being used for the heating device to heating coil heating and the preheating system switch that is used for controlling heating device to open and close. Can open the preceding through the outlet valve that preheats the system on the outlet pipe, preheat the water in the heating coil earlier, the outlet pipe can flow hot water fast after the outlet valve is opened, is showing to shorten and is used for waiting for the time that hot water flows, can follow the outlet pipe even and directly flow out hot water, is favorable to water economy resource and gas resource. In addition, the safety of the use of the preheating system can be improved by arranging a water storage tank, a water pressure indicating device and the like.

Above-mentioned energy-conserving water heater preheats the water in the heating coil through the mode of preheating, and it can effectually shorten the time of waiting for hot water to flow, but its efficiency of preheating the water in the heating coil is lower, and can't carry out accurate control to heating temperature, that is to say that above-mentioned water heater does not fundamentally solve the problem that water waste and user need wait, has only shortened the time that the user waited for.

Disclosure of Invention

The invention aims to provide a water heater which can heat and preserve heat of water stored in a water pipe, can accurately control the temperature of the water stored in the water pipe, can realize the purpose that a user opens the water heater to directly flow hot water, does not need to wait for the discharge of cold water, and avoids the problems of water resource waste and user waiting caused by the fact that cold water in the water pipe needs to be discharged before the water heater is used.

In order to achieve the purpose, the invention adopts the following technical scheme:

a water heater comprises a water inlet, a water outlet and a water using pipeline connected with the water outlet, wherein the water heater further comprises a heating device used for heating water in the water using pipeline.

As a preferable scheme of the above water heater, the heating device is an electric heating wire or an electric heating belt.

As a preferable scheme of the above water heater, the electric heating wire is spirally wound outside the water using pipe.

As a preferable scheme of the above water heater, the electric heating tape is laid or wound outside the water using pipe.

As a preferable scheme of the water heater, the water using pipeline is wrapped with an insulating layer, and the electric heating wire or the electric heating belt is arranged between the insulating layer and the water using pipeline.

As a preferable mode of the water heater, the water heater further includes a temperature sensor which is provided in the water using pipeline and monitors a temperature of water in the water using pipeline.

As a preferable scheme of the above water heater, the water heater further comprises a control device, and the heating device and the temperature sensor are both connected with the control device.

In a preferred embodiment of the above water heater, the temperature sensor is disposed near a water outlet end of the water using pipeline.

As a preferable scheme of the above water heater, the heating device includes a heat conducting medium, and a medium storage tank for heating the heat conducting medium; the water using pipeline is a double-layer sleeve, the double-layer pipeline comprises an inner pipe and an outer pipe, a channel in the inner pipe is a channel for water circulation, and a channel between the inner pipe and the outer pipe is a channel for heat-conducting medium circulation. As a preferable scheme of the water heater, the temperature sensor is connected to an information display screen of the water heater, and the information display screen displays temperature information detected by the temperature sensor.

The invention has the beneficial effects that: the invention provides a water heater, wherein the water using pipeline is provided with a heating device, so that the stored water in the water using pipeline can be quickly heated, the heat conduction efficiency can be increased by adopting a heat pipe made of a heat transfer material as the water using pipeline, and the purpose that a user opens a water using valve to be hot water is realized; the water temperature information in the water using pipeline can be obtained by arranging a temperature sensor on the water using pipeline; meanwhile, the heating device and the temperature sensor are connected with the control device, so that the heating device, the temperature sensor and the control device form a feedback regulation system, and the water temperature in the water using pipeline can be automatically and accurately controlled.

Drawings

FIG. 1 is a schematic structural diagram of a water heater according to a first embodiment of the present invention;

FIG. 2 is a schematic structural diagram of a water heater according to a second embodiment of the present invention;

FIG. 3 is a schematic structural diagram of a water heater according to a third embodiment of the present invention;

wherein:

101: a water inlet; 102: a water outlet; 103: a water pipeline; 104: a water valve; 105: a heating device; 106: a temperature sensor;

203: a water pipeline; 206: a temperature sensor;

303: a water pipeline; 305: a heating device.

Detailed Description

The technical scheme of the invention is further explained by the specific implementation mode in combination with the attached drawings.

The invention provides a water heater, which is provided with a heating device on a water pipeline. The heat that heating device sent heats the deposit water with in the water pipeline, need not the user when opening the water heater and discharges the cold water with in the water pipeline for the water heater, realized that what directly flow out is hot water promptly, reduced the waste of water resource. The heating device is suitable for being installed at water pipelines of gas water heaters, electric heating water heaters, solar water heaters and other hot water supply equipment. The water heater with the heat pipe is described below with reference to specific embodiments.

Implementation mode one

As shown in fig. 1, the water heater in this embodiment is a gas water heater, and includes a water inlet 101, a water outlet 102, and a water using pipeline 103 connected to the water outlet 102, and a water using valve 104 is disposed at a water outlet end of the water using pipeline 103; since the existing water heater needs to discharge the cold water in the water pipeline 103 before use, it will cause waste of water resource and wait problem for users. In view of the above problem, in the present embodiment, the water using pipeline 103 is provided with the heating device 105, and the heating device 105 is an electric heating wire or an electric heating belt, which is used for heating the water in the water using pipeline, so that a user can obtain hot water when turning on the water heater, thereby avoiding the waste of cold water before and reducing the waiting time of the user. The electric heating belt is of a belt-shaped structure with an electric heating wire inside, and the electric heating belt is tiled or wound on the outer side of the water using pipe. In this embodiment, the arrangement and operation of the heating device will be described by taking an electric heating wire as an example. The electric heating wire is spirally wound on the outer side of the water using pipeline 103, specifically, the electric heating wire 103 is wound on the outer side of the water using pipeline in a left-handed spiral or spiral manner.

In this embodiment, the water using pipe 103 is made of a heat transfer material, and in order to prevent energy loss of heat during the transfer, an insulation layer (not shown) is wrapped around the outside of the water using pipe 103, i.e., an electric heating wire is disposed between the water using pipe and the insulation layer. The heat transfer material is heat-conducting silica gel or heat-conducting silicone grease, and the water using pipeline made of the material can realize the quick transmission of heat generated by the heating device to the stored water in the pipeline, so that the water in the pipeline is heated, and the energy loss is small. The water heater further includes a temperature sensor 106 provided in the water usage line 103 for monitoring the temperature of water in the water usage line 103.

The water heater further comprises a control device (not shown), wherein the heating device 105 and the temperature sensor 106 are both connected with the control device, and the heating device 105 is controlled to be turned on or turned off according to a temperature value required to be heated by the water stored in the water using pipeline 103 and a temperature value detected by the temperature sensor 106. The feedback regulation system consisting of the control device, the temperature sensor 106 and the heating device 105 can intelligently control the on-off of the heating device 105 in real time, and reduces the use of electric energy while achieving the purpose of heating water in the water pipeline 103.

In addition, in order to visually check the water temperature information in the water pipe, the temperature sensor is further connected with an information display screen of the water heater, the information display screen is used for displaying the temperature information detected by the temperature sensor, the judgment of the user on the water temperature is reduced, and the water heater can directly discharge hot water meeting the needs of the user.

In this embodiment, the heating device 105 and the temperature sensor 106 are disposed at the connection between the water outlet 102 and the water pipe 103, and the location of the heating device 105 and the temperature sensor 106 can facilitate the installation of the heating device 105 and the temperature sensor 106.

The working process of the water heater with the heat pipe is as follows: when the power is turned on, the heating device 105 is operated, and heat is transferred to the stored water in the pipe through the water pipe made of the heat transfer material, and heats the water in the pipe. Meanwhile, the temperature sensor 106 starts to detect the water temperature in the pipeline and transmits the temperature information to the control device, and when the temperature reaches a set value, the control device controls the heating device 105 to be closed, so that the purpose of preheating the water stored in the heat pipe is achieved; the temperature sensor 106 continues to work, the information of the water temperature detected by the temperature sensor is transmitted to the control device, and when the water temperature is lower than a set temperature value, the control device controls the heating device 105 to work, so that the function of heat preservation of water in the pipeline is realized, and therefore, a user can be ensured to open the water valve and flow out hot water.

Second embodiment

As shown in fig. 2, in this embodiment, the temperature sensor 206 is disposed near the water outlet end of the water pipe 203, and since the temperature sensor 206 is disposed near the water outlet end of the water pipe 203, the detected water temperature information is closer to the water temperature to be used by the user, thereby improving the accuracy of controlling the water temperature in the water pipe 203. In this embodiment, the configuration is the same as that of the first embodiment except that the temperature sensor is disposed at a position different from that of the first embodiment.

Third embodiment

In this embodiment, as shown in fig. 3, the heating device 305 is formed by winding electric heating wires in a left-handed and right-handed manner to form a grid-like structure, and the heating device 305 of this structure heats the water in the water pipe 303 more efficiently. In this embodiment, the structure of the heating device is the same as that of the first embodiment or the second embodiment, except that the structure of the heating device is different from that of the first embodiment or the second embodiment.

Embodiment IV

In this embodiment, the heating device comprises a heat-conducting medium, and a medium storage tank for heating the heat-conducting medium; in this embodiment, the water pipeline is a double-layer sleeve, which includes an inner pipe and an outer pipe, the passage in the inner pipe is a passage for water to flow through, and the passage between the inner pipe and the outer pipe is a passage for closed heat-conducting medium to flow through.

Preferably, the water pipeline is made of a double-layer closed heat pipe material, wherein the inner closed layer is communicated with water, and the outer closed layer is internally sealed with a heat-conducting medium.

When the water heater is installed, in order to ensure that the heat-conducting medium can naturally flow back, the heating tail end is higher than the position of the liquid storage tank, namely the vertical position of the water outlet end of the water pipeline is higher than the position of the liquid storage tank.

The medium liquid storage tank of the heating device heats the medium, the heated heat-conducting medium enters the medium circulation channel, and the heat-conducting medium carries out gas-liquid phase change in the medium circulation channel to realize energy conduction and heat water in the inner layer pipeline. The technical principle of the present invention is described above in connection with specific embodiments. The description is made for the purpose of illustrating the principles of the invention and should not be construed in any way as limiting the scope of the invention. Based on the explanations herein, those skilled in the art will be able to conceive of other embodiments of the present invention without inventive effort, which would fall within the scope of the present invention.

Claims

1. The water heater is characterized by further comprising a heating device for heating water in the water using pipeline.

2. The water heater according to claim 1, wherein the heating means is an electric heating wire or an electric heating belt.

3. A water heater with a heat pipe as claimed in claim 2, wherein the electric heating wire is spirally wound outside the water using pipe.

4. The water heater of claim 2, wherein the electrical heating strip is laid flat or wound around the outside of the water usage pipe.

5. The water heater of claim 2, wherein the water using pipeline is externally wrapped with an insulating layer, and the electric heating wire or the electric heating belt is arranged between the insulating layer and the water using pipeline.

6. The water heater of claim 1, further comprising a temperature sensor disposed in the water usage line for monitoring a temperature of water in the water usage line.

7. The water heater according to claim 6, further comprising a control device, wherein the heating device and the temperature sensor are both connected to the control device.

8. The water heater according to claim 6, wherein the temperature sensor is disposed proximate to a water outlet end of the water usage line.

9. The water heater of claim 1, wherein the heating device includes a heat transfer medium, and a medium reservoir for heating the heat transfer medium; the water using pipeline is a double-layer sleeve, the double-layer pipeline comprises an inner pipe and an outer pipe, a channel in the inner pipe is a channel for water circulation, and a channel between the inner pipe and the outer pipe is a channel for heat-conducting medium circulation.

10. The water heater of claim 5, wherein the temperature sensor is connected with an information display screen of the water heater, and the information of the temperature detected by the temperature sensor is displayed through the information display screen.