WO2013159675A1

WO2013159675A1 - Leakproof device for water storing container of water heater, and water heater

Info

Publication number: WO2013159675A1
Application number: PCT/CN2013/074406
Authority: WO
Inventors: 万华新; 邵小荣; 茹兴鹏
Original assignee: 艾欧史密斯(中国)热水器有限公司
Priority date: 2012-04-28
Filing date: 2013-04-19
Publication date: 2013-10-31
Also published as: CN102679561A; CN103216942A

Abstract

The present invention provides a leakproof device for a water storing container of a water heater, and a water heater. The device comprises a water inlet portion used as a water supply channel of a water inlet of the water storing container, and a water outlet portion communicating with a water outlet of the water storing container. A communication cavity is disposed between the water inlet portion and the water outlet portion, the communication cavity is disposed with a diaphragm valve used to connect or disconnect the water inlet of the water storing container and the water inlet portion, the diaphragm valve is further disposed with a through-hole communicating the water inlet portion and the water outlet portion, the water inlet and the water outlet of the water storing container are ports separated from each other. In the present invention, by disposing the diaphragm valve in the communication cavity, without adding a detection system or an external power source, communication between water source and the water storing container is efficiently cut off, so as to prevent the problem of continuous water leakage when corrosive perforation occurs in the water storing container.

Description

Anti-leakage device and water heater for water storage tank of water heater

The present invention relates to an anti-leakage device, and more particularly to an anti-leakage device and a water heater for a water storage container of a water heater. Background technique

At present, the water heater is generally connected directly to the water source during installation, and the water storage tank of the water heater will undergo oxygen evolution and hydrogen evolution reaction due to the action of the primary battery, which is likely to cause corrosion perforation and eventually lead to leakage of the water storage container, and leakage will occur due to existing The water storage container is connected to the water source to cause the leakage to continue, resulting in a large-area flooding accident and serious damage.

In order to solve this problem, the Chinese utility model with application number 200820006351. 3 discloses an electric water heater with a leak alarm and water cut, wherein the lower part of the electric water heater is provided with a water storage tray, and the water storage tray is provided with one or more pairs of electrodes. The inlet pipe is equipped with a water inlet controller, and the electrode or the water inlet controller and the signal processor are connected by a signal control line, and the signal processor receives the leakage signal of the electrode, emits an audible or optical alarm, and is directed to the water inlet. The controller sends off the water source signal to cut off the water supply.

In addition, the Chinese invention patent No. 200910033981. 9 discloses a water heater comprising a water storage tank connected to the inner tank for conveying water flowing into the inner tank and flowing out of the inner tank and an outlet pipe for heating. The heat source of water in the gall bladder, and the audio detector for detecting the audio change caused by the leakage of the inner tank, once the inner tank leaks, the corresponding audio change can be detected, thereby taking corresponding measures to reduce The impact on the surrounding environment due to leakage.

It can be seen that the above prior art requires the detection sensing system, the signal processing system and the water inlet controller to work together to cut off the water after leakage, which not only requires high detection detection system, but also alarms if the reaction is not sensitive. And the cut-off control is not timely. If the reaction is sensitive, it is prone to false alarms and malfunctions, and additional power supply is required. The structure is complicated, and it also needs to prevent electric shock and occupy too much space.

The above technical contents are incorporated in the present application in a manner that is incorporated herein by reference. Summary of the invention

In view of the problems existing in the prior art, an object of the present invention is to provide an anti-leakage device and a water heater for a water storage container of a water heater, which can cut off the connection between the water source and the water storage container, and avoid using the detection system. And external power supply.

The technical object of the present invention is achieved by the following technical solutions:

An anti-leakage device for a water storage tank of a water heater, the device comprising: a water inlet portion as a water supply passage of the water inlet of the water storage container, the water inlet portion including a first water inlet end and a second water inlet portion a water inlet end, the first water inlet end is for communicating with the water supply end, the second water inlet end is for communicating with the water inlet of the water storage container, and the water outlet portion is connected with the water outlet of the water storage container. The water outlet portion includes a first water outlet end for communicating with a water outlet of the water storage container, and a second water outlet end for communicating with a user water end, a first water outlet end is connected to the second water outlet end; a communication chamber is disposed between the water inlet portion and the water outlet portion, and one end of the communication chamber is connected between the first water inlet end and the second water inlet end, The other end of the communication chamber is connected between the first water outlet end and the second water outlet end. The communication chamber is provided with a diaphragm valve for connecting or shutting off the water inlet of the water storage container and the water inlet portion. The diaphragm valve is further provided with the water inlet portion and the water outlet portion The through-hole; storing water container inlet and outlet ports are separated from each other.

The anti-leakage device for a water storage tank of a water heater as described above, wherein the communication chamber is provided with a valve driving member for driving the diaphragm valve to shut off the water inlet and the water inlet portion.

The anti-leakage device for a water storage container of a water heater as described above, wherein the valve driving member is an elastic supporting portion, one end of the elastic supporting portion abuts against the diaphragm valve, and the other end is connected to the cavity of the communication cavity The wall is abutted.

The anti-leakage device for a water storage tank of a water heater as described above, wherein the valve driving member is a magnetic driving portion, and the magnetic driving portion includes a first magnetic member and a second magnetic member having the same polarity, wherein the first magnetic portion The piece is mounted on the diaphragm valve and the second magnetic member is mounted on the wall of the communication chamber.

The anti-leakage device for a water storage container of a water heater as described above, wherein the elastic support portion is a spring.

The anti-leakage device for a water storage tank of the water heater as described above is provided with a check valve in the water discharge portion, which allows the water flow to flow only from the outlet of the water outlet.

In the anti-leakage device for a water storage tank of a water heater as described above, a filter screen is installed in the water inlet portion. The anti-leakage device for the water storage container of the water heater as described above, the first water inlet end and the second water inlet end have a first water flow passage communicating with the water inlet, and the diaphragm valve is disposed in the communication cavity, Used to connect or shut down the first water flow channel.

The anti-leakage device for a water storage container of a water heater as described above, the diaphragm valve being made of a flexible film. The anti-leakage device for a water storage container of a water heater as described above, the diaphragm valve being made of a rubber film. A water heater having an anti-leakage device, the water heater comprising a water storage container and a leakage prevention device, the anti-leakage device comprising: a water inlet portion as a water supply passage of the water inlet of the water storage container, and the Out of the water storage container a water outlet portion communicating with the water inlet; a communication chamber is disposed between the water inlet portion and the water outlet portion, and a diaphragm for connecting or disconnecting the water inlet of the water storage container and the water inlet portion is disposed in the communication chamber a valve, the diaphragm valve further provided with a through hole communicating with the water inlet portion and the water outlet portion, the water inlet portion including a first water inlet end for communicating with the water supply end, and a water inlet for communicating with the water storage container a second water inlet end; the water outlet portion includes a first water outlet end for communicating with a water outlet of the water storage container, and a second water outlet end for communicating with a user water end, the first water outlet end and the first water outlet end The two outlet ends are connected, one end of the communication chamber is connected between the first water inlet end and the second water inlet end, and the other end of the communication chamber is connected between the first water outlet end and the second water outlet end, and the water storage container is The water inlet and the water outlet are separate ports.

The invention provides a diaphragm valve in the communication cavity of the anti-leakage device, and timely and effectively cuts off the connection between the water source and the water storage container without adding a detection system and an external power source, thereby avoiding corrosion of the water storage container. The problem of continuous water leakage during perforation ensures the safe use of the water heater. DRAWINGS

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly described below. It is obvious that the drawings in the following description are only some embodiments of the present invention. Other drawings may also be obtained from those of ordinary skill in the art in light of the inventive work.

1 is a schematic view of a mechanism of a water heater according to a preferred embodiment of the present invention;

2a is a schematic structural view of the anti-leakage device of the water storage container of the water heater shown in FIG. 1 in a state of water cut (no elastic support member);

Figure 2b is a structural schematic view of the anti-leakage device of the water storage container of the water heater shown in Figure 1 in a state of water cut (with elastic support members);

Figure 3a is a structural schematic view of the anti-leakage device of the water storage container of the water heater shown in Figure 1 in a water-passing state (without elastic support members);

Fig. 3b is a structural schematic view (with elastic support members) of the anti-leakage device of the water storage container of the water heater shown in Fig. 1 in a water-passing state.

Description of the reference signs:

1, water inlet 2, water inlet 3, water outlet 4, water outlet

5, connecting cavity 6, diaphragm valve 7, through hole 8, elastic support

9. Check valve 10, first water flow channel 20, second water flow channel 100, water storage container 201, the first water inlet end 202, the second water inlet end 401, the first water outlet end 402, and the second water outlet end

The technical solutions in the embodiments of the present invention are clearly and completely described in the following with reference to the accompanying drawings in the embodiments of the present invention. It is obvious that the described embodiments are only a part of the embodiments of the present invention, but not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative efforts are within the scope of the present invention.

As shown in FIG. 1 to FIG. 3b, an embodiment of the present invention provides an anti-leakage device for a water storage container of a water heater, the device comprising a water inlet portion 2, a water outlet portion 4, and a communication chamber 5. The water inlet portion 2 serves as a water inlet passage for the water storage container, and the water inlet portion 2 communicates with the water inlet 1 of the water storage container; the water outlet portion 4 communicates with the water outlet 3 of the water storage container . A communication chamber 5 is disposed between the water inlet portion 2 and the water outlet portion 4, and a diaphragm valve 6 is disposed in the communication chamber 5, and the diaphragm valve 6 is used to make the water inlet 1 of the water storage container and the water inlet The portion 2 is connected or disconnected, and the diaphragm valve 6 is further provided with a through hole 7 that communicates the water inlet portion 2 and the water outlet portion 4.

The water inlet portion 2 includes a first water inlet end 201 for communicating with the water supply end, and a second water inlet end 202 for communicating with the water inlet of the water storage container. The water outlet portion 4 includes a first water outlet end 401 for communicating with the water outlet of the water storage container, and a second water outlet end 402 for communicating with the water end of the user, the first water outlet end 401 and the second water outlet end. The end of the communication chamber 5 is connected between the first water inlet end 201 and the second water inlet end 202, and the other end of the communication chamber 5 is connected between the first water outlet end 401 and the second water outlet end 402. . The water inlet 1 and the water outlet 3 of the water storage container are separate ports, and for example, the anti-leakage device may adopt a structure similar to the "H" type.

Specifically, the water inlet 1 may be in communication with a water storage container (i.e., a liner) of the electric water heater, and the water inlet portion 2 is in communication with a tap water supply line or other water supply line. The water outlet 4 communicates with the water tap device of the faucet or other user end, and the water outlet 3 can communicate with the water outlet of the water storage container.

According to an embodiment of the present invention, the water inlet 1 and the water inlet portion 2 may have a first water flow passage 10, specifically, between the first water inlet end 201 and the second water inlet end 202. A first water flow passage 10 communicating with the water inlet 1, the diaphragm valve 6 being disposed in the communication chamber 5 for connecting or shutting off the first water flow passage 10.

Wherein, the first water flow channel 10 can adopt various suitable shapes of pipe structures. A second water flow passage 20 may be provided between the water outlet 3 and the water outlet portion 4.

Further, the diaphragm valve 6 may be made of a flexible film, such as a rubber film. Moreover, the diaphragm valve 6 may be disposed in the first water flow passage 10 for controlling the communication of the water inlet 1 and the water inlet portion 2 and Shut down.

The working principle of the embodiment of the present invention is that, as shown in FIG. 2a, when the user closes the water end, the water pressure of the water outlet 3 is quickly equal to the water of the water inlet 1 by the communication action of the through hole 4 in the diaphragm valve 6. The diaphragm valve 6 is brought close to and in contact with the communication port between the first water inlet end 201 and the second water inlet end 202 under the influence of the pressure difference on both sides thereof. At this time, if the inner tank leaks, the pressure difference between the two sides of the diaphragm valve 6 gradually increases due to the decrease of the pressure of the second water inlet end 202, and the diaphragm valve 6 tightly blocks the first water inlet end 201 and The communication port between the second water inlet ends 202, so that the first water flow channel 10 is blocked, so that the water in the inner tank is not replenished, and at most, the water in the inner tank is completely leaked, thereby automatically avoiding Sustained leakage;

As shown in FIG. 3a, when the user opens the water end, the water flows out from the water outlet 3, so the water pressure after the water outlet 3 is released will be smaller than the water pressure of the water inlet 1, and the diaphragm valve 6 is water on both sides. Under the action of the pressure difference again, the diaphragm valve 6 is changed into a convex shape on one side and a corresponding concave shape on the other surface, so that the diaphragm valve 6 opens the communication port between the first water inlet end 201 and the second water inlet end 202, The water flow can flow from the first water flow passage into the inner tank along the direction of the broken line in Fig. 3a, thereby ensuring that the water of the electric water heater is always replenished.

According to an embodiment of the present invention, a filter screen may be installed in the water inlet portion 2. Wherein, the diaphragm valve 6 can substantially separate the water inlet portion 2 and the water outlet portion 4, and the diaphragm valve 6 is provided with a through hole 7 for communicating the water inlet portion 2 and the water outlet portion 4, the passage The hole diameter of the hole 7 is required to be as small as possible to ensure that the water outlet portion 4 does not mix too much cold water that flows in through the through hole 7 from the water inlet portion 2. To prevent clogging of the through hole 7, the aperture of the through hole should be larger than the aperture of the filter. The aperture of the through hole 7 may be, for example, 0.1.

According to an embodiment of the present invention, a check valve 9 for unidirectionally flowing a water flow from the water outlet 3 is provided in the water discharge portion. The check valve 9 having a check function ensures that the water flow can only flow from the inner tank into the second water flow passage, and then flows out from the water tap of the water end, and cannot flow in the opposite direction. It will be understood by those skilled in the art that the check valve 9 can be disposed at The second water flow channel and its water flow channel extending toward the inner bladder.

According to an embodiment of the present invention, in order to achieve precise control of the diaphragm valve 6, a valve driving member that drives the diaphragm valve 6 to close the water inlet 1 and the water inlet portion 2 may be disposed in the communication chamber 5.

Wherein, the valve driving component can be realized by an elastic component, a magnetic component or other suitable component. Alternatively, the valve drive member may support the diaphragm valve by a spring or a magnetic member to ensure better airtightness when the diaphragm valve blocks the first water flow passage.

Further, in order to enable the diaphragm valve 6 to operate more accurately, to ensure that when the leakage occurs, the diaphragm valve 6 can completely block the flow of water into the water storage container, and the communication chamber 5 can be provided with an elastic support portion 8, One end of the elastic support portion 8 abuts against the diaphragm valve 6, and the other end abuts against the chamber wall of the communication chamber 5. The elastic support portion 8 may be a spring. Of course, the spring is only a preferred embodiment of the present embodiment, and the present invention may also employ elastic supports of other materials and structures known to those skilled in the art, such as rubbery resilient support members.

The specific implementation process when the embodiment has the elastic support portion 8 will be described below.

As shown in Fig. 2b, when the user closes the water end, the water pressure of the water outlet 3 is quickly equal to the water pressure of the water inlet 1 by the communication of the through holes 4 in the diaphragm valve 6, so the diaphragm valve 6 is due to the two The side pressure difference changes, and approaches and contacts at the communication port between the first water inlet end 201 and the second water inlet end 202 at the auxiliary action of the elastic support portion 8 (spring); at this time, if the liner leaks The pressure of the second water inlet end 202 is decreased, so that the pressure difference between the two sides of the diaphragm valve 6 is gradually increased, and the diaphragm valve 6 tightly blocks the gap between the first water inlet end 201 and the second water inlet end 202. The communication port blocks the first water flow channel 10, so the water storage in the inner tank is not replenished, and at most, the water in the inner tank is completely leaked, thereby automatically avoiding continuous leakage;

As shown in Fig. 3b, when the user opens the water end, the water flows out from the water outlet 3, so the water pressure after the water outlet 3 is released will be smaller than the water pressure of the water inlet 1, and the diaphragm valve 6 has a pressure difference on both sides. Under the action of the change again, it becomes a convex shape, and the other surface is correspondingly recessed, so that the diaphragm valve 6 opens the communication port between the first water inlet end 201 and the second water inlet end 202, and the water flow can be along FIG. 3b. The direction of the dotted line flows into the inner tank from the first water flow passage, thereby ensuring that the water of the electric water heater is always replenished.

In the above embodiment, the valve driving member is realized by an elastic supporting portion. In other embodiments, the valve drive component can also be implemented by a magnetic drive. The magnetic driving portion may include a first magnetic member and a second magnetic member having the same polarity, wherein the first magnetic member is mounted on the diaphragm valve, and the second magnetic member is mounted on the wall of the communication chamber, the first magnetic member geometry The line connecting the center and the geometric center of the second magnetic member may be perpendicular to the port plane of the water inlet. Due to the principle of repulsion of the same magnetic pole, a repulsive force is generated between the first magnetic pole and the second magnetic pole, so that the diaphragm valve to which the first magnetic member is mounted is subjected to a spring-like supporting force. Thereby, the magnetic driving portion can function similarly to the elastic supporting member. Correspondingly, the embodiment of the invention further provides a water heater, which has the above-mentioned anti-leakage device. Specifically, the water heater includes a water storage container and an anti-leakage device. A water storage container is used to hold and heat the water.

The anti-leakage device may adopt the technical solution provided by the present invention described above, that is, the anti-leakage device includes: a water inlet portion 2 as a water supply passage of the water inlet 1 of the water storage container, and the water storage container The outlet 3 is connected to the outlet 4 . A communication chamber 5 is disposed between the water inlet portion 2 and the water outlet portion 4, and a diaphragm valve 6 for connecting or disconnecting the water inlet of the water storage container and the water inlet portion is disposed in the communication chamber 5. , the diaphragm The valve 6 is also provided with a through hole 7 that communicates the water inlet portion and the water outlet portion.

A first preferred embodiment of the water heater according to the embodiment of the present invention is shown in FIG. 1. The anti-leakage device is of an "H"-like structure. Therefore, the water inlet 1 of the water storage container 100 and the anti-leakage device are advanced. One end of the water portion 2 is connected, and the other end of the water inlet portion 2 is connected to tap water or another water supply source; the water outlet 3 of the water storage container 100 communicates with one end of the water discharge portion 4 of the leakage preventing device, and the other end of the water discharge portion 4 and the user Connect with water terminals (such as shower switches). The structure and working principle of the anti-leakage device are as described above, and will not be described herein.

The above-described embodiments are merely illustrative of the invention, and are not intended to limit the scope of the invention, and various changes and modifications may be made without departing from the spirit and scope of the invention. Combinations, therefore, all equivalent technical solutions are also intended to fall within the scope of the invention, and the scope of the invention is defined by the claims.

Claims

Claim

An anti-leakage device for a water storage tank of a water heater, characterized in that: the device comprises: a water inlet portion as a water supply passage of the water inlet of the water storage container, the water inlet portion including the first a water inlet end for communicating with the water supply end, and a second water inlet end for communicating with the water inlet of the water storage container;

a water outlet portion communicating with a water outlet of the water storage container, the water outlet portion including a first water outlet end and a second water outlet end, wherein the first water outlet end is configured to communicate with a water outlet of the water storage container The second water outlet end is configured to communicate with the user water end, and the first water outlet end is in communication with the second water outlet end;

a communication chamber is disposed between the water inlet portion and the water outlet portion, one end of the communication chamber is connected between the first water inlet end and the second water inlet end, and the other end of the communication chamber is connected to the first water outlet end Between the second water outlet end, a diaphragm valve is disposed in the communication chamber for connecting or disconnecting the water inlet of the water storage container and the water inlet portion, and the diaphragm valve is further provided with a communication center The through holes of the water inlet portion and the water outlet portion are described; the water inlet and the water outlet of the water storage container are separate ports.

2. The anti-leakage device for a water storage container of a water heater according to claim 1, wherein a valve driving member is provided in the communication chamber for driving the diaphragm valve to shut off the water inlet and The water inlet portion.

The anti-leakage device for a water storage container of a water heater according to claim 2, wherein the valve driving member is an elastic supporting portion, and one end of the elastic supporting portion abuts against the diaphragm valve, The other end abuts against the cavity wall of the communication cavity.

The anti-leakage device for a water storage container of a water heater according to claim 2, wherein the valve driving member is a magnetic driving portion, and the magnetic driving portion includes a first magnetic member having the same polarity and The second magnetic member, wherein the first magnetic member is mounted on the diaphragm valve, and the second magnetic member is mounted on the chamber wall of the communication chamber.

The anti-leakage device for a water storage tank of a water heater according to claim 3, wherein the elastic support portion is a spring.

The anti-leakage device for a water storage container of a water heater according to claim 1, wherein a check valve is provided in the water discharge portion so that the water flow can flow only from the outlet of the water outlet.

The anti-leakage device for a water storage tank of a water heater according to claim 1, wherein a filter screen is installed in the water inlet portion.

The anti-leakage device for a water storage tank of a water heater according to claim 1, wherein a first water flow passage communicating with the water inlet is provided between the first water inlet end and the second water inlet end, Diaphragm valve set in the company In the through cavity, the first water flow channel is connected or turned off.

The anti-leakage device for a water storage container of a water heater according to claim 1, wherein the diaphragm valve is made of a flexible film.

The anti-leakage device for a water storage container of a water heater according to claim 9, wherein the diaphragm valve is made of a rubber film.

A water heater having a leakage preventing device, wherein the water heater comprises a water storage container and a leakage prevention device, and the leakage prevention device comprises: a water supply passage as a water inlet of the water storage container a water portion, a water outlet portion communicating with the water outlet of the water storage container;

a communication chamber is disposed between the water inlet portion and the water outlet portion, and a diaphragm valve for connecting or disconnecting the water inlet of the water storage container and the water inlet portion is disposed in the communication chamber, the diaphragm valve a through hole connecting the water inlet portion and the water outlet portion is further disposed on the upper portion,

The water inlet portion includes a first water inlet end for communicating with the water supply end, and a second water inlet end for communicating with the water inlet of the water storage container;

The water outlet portion includes a first water outlet end for communicating with the water outlet of the water storage container, a second water outlet end for communicating with the water end of the user, and the first water outlet end is in communication with the second water outlet end. One end of the communication chamber is connected between the first water inlet end and the second water inlet end, and the other end of the communication chamber is connected between the first water outlet end and the second water outlet end, and the water inlet and the water outlet of the water storage container are Separate ports.