CN113899070A

CN113899070A - Instant water heater capable of preventing waste heat temperature rise from being too high

Info

Publication number: CN113899070A
Application number: CN202111208655.4A
Authority: CN
Inventors: 罗杰; 刘志强; 管江勇
Original assignee: Qingdao Economic And Technology Development District Haier Water Heater Co ltd; Qingdao Haier Wisdom Electrical Equipment Co ltd; Haier Smart Home Co Ltd
Current assignee: Qingdao Economic And Technology Development District Haier Water Heater Co ltd; Qingdao Haier Wisdom Electrical Equipment Co ltd; Haier Smart Home Co Ltd
Priority date: 2021-10-18
Filing date: 2021-10-18
Publication date: 2022-01-07

Abstract

The invention belongs to the technical field of water heaters, and discloses an instant water heater for preventing excessive temperature rise of waste heat. The bypass line is configured to deliver cold water to the outlet line to mix with the water heated by the waste heat of the heating assembly. In the present invention, after the heating component stops heating, the water in the heating component will be heated by the waste heat. When the heating component is turned on again, the temperature of the water heated by the waste heat of the heating component is higher than the temperature set by the user. The cold water is delivered to the water outlet pipe and mixed with the water heated by the waste heat of the heating component to reduce the temperature of the high temperature water, and then flows out through the water outlet pipe. At this time, the water flowing out of the water outlet pipe will not scald the user, and there will be no waste of water resources. In addition, it can also prevent the waste heat of the instant water heater from rising too high, resulting in the aging of the heating components and other undesirable situations.

Description

Instant water heater capable of preventing waste heat temperature rise from being too high

Technical Field

The invention relates to the technical field of water heaters, in particular to an instant water heater capable of preventing excessive temperature rise of waste heat.

Background

The instant water heater is also called as a quick or instant water heater and is characterized in that: when cold water enters and hot water exits, hot water can be continuously supplied in a short time as long as the water outlet valve is opened, and when hot water is not used, the water outlet valve is closed to cut off the water path, so that heating can be stopped in a short time. The principle of the electric heating type instant water heater is that a relatively high-power electric heater (such as a heating pipe) is used for rapidly heating cold water flowing through a heating area, so that the cold water rapidly reaches a preset use temperature, and the purpose of cold water inlet and hot water outlet is achieved.

When a user uses the water heater, the water heater is opened again after being closed, a part of water is heated by the electric heater before the water outlet valve is closed, the part of water stays at the electric heater when the water outlet valve is closed, the electric heater has residual temperature, and the residual temperature heats the part of water again to cause the temperature of the part of water to rise, so that when the water outlet valve is opened again, the possibility that the user is scalded due to overhigh water temperature can occur.

To above-mentioned problem, the design that current electrical heating formula instant heating type water heater reduces waste heat temperature rise adopts software program control delay heating or to increase the mode realization that mixes the water valve at the play water end usually, and the former influences constant temperature effect, and the customer uses and experiences the variation, and the effect that reduces waste heat temperature rise is limited, and the latter has the problem of incremental cost and operational difficulty, goes out water often neglects cold and neglects hot in addition, and the easy maloperation of user is transferred to the high temperature end of mixing the water valve, leads to the human quilt scald.

Disclosure of Invention

The invention aims to provide an instant water heater capable of preventing excessive waste heat temperature rise, which can reduce the waste heat temperature rise in real time and avoid scalding users.

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

the utility model provides a prevent excessive high instant-heating water heater of waste heat temperature rise, includes heating element, the intercommunication heating element's inlet channel and outlet conduit, and the intercommunication the inlet channel with outlet conduit's bypass pipeline, the bypass pipeline be configured into carry cold water extremely outlet conduit, with the water mixture of heating element waste heat heating.

Preferably, the bypass pipe comprises a first end communicated with the water outlet pipe, and the first end extends into the water outlet pipe.

Preferably, the first end extends towards the end of the water outlet pipe connected with the heating component, so that water flowing out of the first end and water flowing into the water outlet pipe from the heating component are in a convection state.

Preferably, the port of the first end is arranged obliquely towards the pipe wall of the water outlet pipe.

Preferably, the angle alpha between the axis of the port at the first end and the axis of the part of the bypass pipeline outside the water outlet pipeline is 30-60 degrees.

Preferably, the bypass conduit includes a second end in communication with the inlet conduit, the second end extending into the inlet conduit and disposed beyond the axis of the inlet conduit.

Preferably, the diameter of the second end is smaller than the diameter of the water inlet pipe.

Preferably, the bypass pipeline and the water inlet pipeline and the bypass pipeline and the water outlet pipeline are in sealing connection through sealing rings.

Preferably, the two ends of the bypass pipeline are provided with fixing blocks, and the sealing ring is fixed at the joint between the bypass pipeline and the water inlet pipeline and the joint between the bypass pipeline and the water outlet pipeline through the fixing blocks.

Preferably, a flow regulating valve is arranged on the bypass pipeline.

The invention has the beneficial effects that: through setting up the by-pass line, after heating element stop heating, the water in the heating element can be heated up by the waste heat, when opening heating element again, the temperature of the water of being heated by heating element waste heat is higher than the temperature that the user set for, carries cold water to outlet pipe through the by-pass line this moment to mix with the water of heating element waste heat heating, so that the high temperature water temperature of heating element waste heat heating reduces, later flows through outlet pipe. The water that the outlet conduit flows out can not scald the user at this moment, can not have the waste of water resource. But also can prevent the waste heat temperature rise of the instant water heater from being too high, which causes the unfavorable conditions of aging of the heating component and the like.

Drawings

FIG. 1 is a front view of an instant water heater provided by the present invention to prevent excessive temperature rise of waste heat;

FIG. 2 is a front view of a bypass duct provided by the present invention;

FIG. 3 is a top view of a bypass duct provided by the present invention;

FIG. 4 is a schematic view of the assembly of the bypass line and the water inlet line according to the present invention.

In the figure:

1. a heating assembly; 2. a water inlet pipe; 3. a water outlet pipeline; 4. a bypass conduit; 41. a first end; 42. a second end; 5. a seal ring; 6. and (5) fixing blocks.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting of the invention. It should be further noted that, for the convenience of description, only some of the structures related to the present invention are shown in the drawings, not all of the structures.

In the description of the present invention, unless expressly stated or limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, e.g., as meaning permanently connected, removably connected, or integral to one another; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

In the present invention, unless otherwise expressly stated or limited, "above" or "below" a first feature means that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact with each other via another feature therebetween. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

In the description of the present embodiment, the terms "upper", "lower", "right", etc. are used in an orientation or positional relationship based on that shown in the drawings only for convenience of description and simplicity of operation, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used only for descriptive purposes and are not intended to have a special meaning.

The invention provides an instant water heater capable of preventing excessive temperature rise due to waste heat, which can prevent users from being scalded by water flowing out and avoid waste of water resources. As shown in fig. 1, the instant water heater for preventing the temperature rise due to the waste heat from being too high includes a heating component 1, a water inlet pipe 2 and a water outlet pipe 3 which are communicated with the heating component 1, and a bypass pipe 4 which is communicated with the water inlet pipe 2 and the water outlet pipe 3, wherein cold water enters the heating component 1 through the water inlet pipe 2, and flows out through the water outlet pipe 3 after being heated, so as to be used by a user. The bypass conduit 4 is configured to convey cold water to the outlet conduit 3 for mixing with water heated by residual heat of the heating assembly 1. Specifically, when the user stops using water temporarily, the heating assembly 1 is turned off, water heated to the temperature set by the user is stored in the heating assembly 1, the water heated to the temperature set by the user is reheated by the waste heat of the heating assembly 1 to raise the temperature, the temperature of the water heated by the waste heat of the heating assembly 1 is higher than the temperature set by the user, and at this time, when the user uses water again, part of cold water flows into the water outlet pipe 3 through the bypass pipe 4 and is mixed with the water heated by the waste heat of the heating assembly 1, so that the temperature of the high-temperature water heated by the waste heat of the heating assembly 1 is reduced, and then the water flows out through the water outlet pipe 3. At the moment, the water flowing out of the water outlet pipeline 3 can not scald users and waste of water resources can not exist. And can also prevent that the temperature rise of instantaneous water heater waste heat is too high, leads to unfavorable conditions such as heating element 1 ageing to appear.

Preferably, the bypass pipe 4 comprises a first end 41 communicating with the outlet pipe 3 and a second end 42 communicating with the inlet pipe 2, wherein:

the first end 41 extends into the outlet pipe 3, that is, the first end 41 enters the outlet pipe 3, so that the cold water in the bypass pipe 4 can smoothly enter the outlet pipe 3 to be mixed with the hot water in the outlet pipe 3.

More preferably, the first end 41 extends toward the end of the outlet tube 3 connected to the heating element 1, so that the water flowing out of the first end 41 and the water flowing into the outlet tube 3 from the heating element 1 are in a convection state. Through this structural setting, the water that first end 41 flowed out is the convection current state with the water that heating element 1 flowed into outlet conduit 3, can make cold water and the hot water intensive mixing by the waste heat heating, and then the hot water of cooling effect is better. Specifically, referring to fig. 2 and 3, the first end 41 is disposed in a bent structure, and includes a first section extending into the outlet conduit 3 in a sealing manner and extending along a radial direction of the outlet conduit 3, and a second section perpendicular to the first section, an outlet of the second section is directed toward the heating element 1, so that water flowing out of the first end 41 and water flowing into the outlet conduit 3 from the heating element 1 are in a convection state.

In this embodiment, the port of the first end 41 (i.e. the outlet of the second section) is obliquely directed to the pipe wall of the water outlet pipe 3, and the structural arrangement enables the cold water in the bypass pipe 4 to flow toward the pipe wall of the water outlet pipe 3 and to present a reverse spiral flow state along the inner wall of the water outlet pipe 3, so that the cold water can contact with the hot water flowing into the water outlet pipe 3 from the heating assembly 1 for a longer time, and the effect of cooling the hot water is better. Preferably, the axis of the port of the first end 41 (which may be understood as the axis of the second section) is at an angle α of 30 ° to 60 ° to the axis of the portion of the bypass conduit 4 outside the outlet conduit 3, the angle being such that the cold water in the bypass conduit 4 assumes a reverse spiral flow along the inner wall of the outlet conduit 3.

As shown in FIG. 4, the second end 42 of the bypass conduit 4 extends into the inlet conduit 2 and is disposed across the axis of the inlet conduit 2. By passing the second end 42 over the axis of the inlet conduit 2, the cross-sectional area of the inlet conduit 2 can be reduced, i.e. the flow rate of the water passing through the heating assembly 1 within the inlet conduit 2 is reduced. The flow rate of the bypass pipe 4, i.e. the percentage of the water inflow of the bypass pipe 4, is relatively raised under the condition that the total flow is not changed. The total water volume in the heating element 1 is not reduced, the water volume capable of absorbing the heat of the heating element 1 is not changed, at the moment, only the water flow speed is reduced, the heat emitted to the surrounding space is reduced, and the heat efficiency can be improved. Preferably, the diameter of the second end 42 is smaller than the diameter of the inlet conduit 2, on the one hand, so that the second end 42 extends into the inlet conduit 2, and on the other hand, the second end 42 does not completely block the inlet conduit 2, so that cold water can enter the heating assembly 1.

In this embodiment, all through sealing washer 5 sealing connection between bypass pipeline 4 and the inlet channel 2 and between bypass pipeline 4 and outlet channel 3. Specifically, referring to fig. 2, fixing blocks 6 are disposed at two ends of the bypass pipe 4, and the sealing ring 5 is fixed at a connection between the bypass pipe 4 and the water inlet pipe 2 and a connection between the bypass pipe 4 and the water outlet pipe 3 through the fixing blocks 6. Specifically, the fixing block 6 may be fixed to the water inlet pipe 2 or the water outlet pipe 3 to press and seal the sealing ring 5 at a connection between the bypass pipe 4 and the water inlet pipe 2 and a connection between the bypass pipe 4 and the water outlet pipe 3.

In this embodiment, the bypass pipe 4 may be a capillary pipe, and the size of the cold water flow value is adjusted by setting the size of the inner diameter of the bypass pipe 4, so as to adapt to instant water heaters of different models. Of course, a flow regulating valve may be directly provided on the bypass pipe 4, and the flow of the cooling water in the bypass pipe 4 is regulated by the flow regulating valve, so as to adapt to the instant water heaters of different models.

The above-mentioned instant heating water heater who prevents waste heat temperature rise too high of this embodiment, its temperature that can neutralize the water of heating element 1 waste heat heating, and then make the water that outlet conduit 3 flows out can not scald the user, can not have the waste of water resource.

It should be understood that the above-described embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. Numerous obvious variations, adaptations and substitutions will occur to those skilled in the art without departing from the scope of the invention. And are neither required nor exhaustive of all embodiments. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.

Claims

1. An instant water heater for preventing excessive temperature rise of waste heat, characterized in that it comprises a heating assembly (1), a water inlet pipe (2) and a water outlet pipe (3) communicating with the heating assembly (1), and a communication A bypass pipe (4) of the water inlet pipe (2) and the water outlet pipe (3), the bypass pipe (4) is configured to deliver cold water to the water outlet pipe (3) to be compatible with the water outlet pipe (3) The heating assembly (1) mixes the water heated by the waste heat.

2 . The instant water heater for preventing excessive temperature rise of waste heat according to claim 1 , wherein the bypass pipe ( 4 ) comprises a first end ( 41 ) that communicates with the water outlet pipe ( 3 ), so that the The first end (41) extends into the water outlet pipe (3) and is arranged.

3. The instant water heater for preventing excessive temperature rise of waste heat according to claim 2, wherein the first end (41) is connected to the end of the heating assembly (1) to the water outlet pipe (3). The extension is arranged so that the water flowing out of the first end (41) and the water flowing into the water outlet pipe (3) from the heating assembly (1) are in a state of convection.

4 . The instant water heater for preventing excessive heat rise in waste heat according to claim 3 , wherein the port of the first end ( 41 ) is disposed inclined toward the pipe wall of the water outlet pipe ( 3 ). 5 .

5. The instant water heater for preventing excessive temperature rise of waste heat according to any one of claims 2-4, wherein the axis of the port of the first end (41) and the bypass pipe (4) are located at The axial included angle α of the part outside the water outlet pipe (3) is 30°-60°.

6. The instant water heater for preventing excessive temperature rise of waste heat according to any one of claims 1-4, wherein the bypass pipe (4) comprises a second end that communicates with the water inlet pipe (2) (42), the second end (42) extends into the water inlet pipe (2) and is disposed over the axis of the water inlet pipe (2).

7. The instant water heater for preventing excessive temperature rise of waste heat according to claim 6, characterized in that the diameter of the second end (42) is smaller than the diameter of the water inlet pipe (2).

8. The instant water heater for preventing excessive temperature rise of waste heat according to any one of claims 1-4, characterized in that, between the bypass pipe (4) and the water inlet pipe (2) and the The bypass pipe (4) and the water outlet pipe (3) are sealed and connected by a sealing ring (5).

9 . The instant water heater for preventing excessive temperature rise of waste heat according to claim 8 , wherein the two ends of the bypass pipe ( 4 ) are provided with fixed blocks ( 6 ), and the sealing ring ( 5 ) The fixing block (6) is fixed at the connection between the bypass pipe (4) and the water inlet pipe (2) and the connection between the bypass pipe (4) and the water outlet pipe (3) connection between.

10. The instant water heater for preventing excessive temperature rise of waste heat according to any one of claims 1-4, characterized in that a flow regulating valve is provided on the bypass pipe (4).