CN115406114A

CN115406114A - Gas water heater

Info

Publication number: CN115406114A
Application number: CN202210226280.2A
Authority: CN
Inventors: 赵龙; 赵小勇; 郑涛
Original assignee: Haier Smart Home Co Ltd; Qingdao Economic and Technological Development Zone Haier Water Heater Co Ltd
Current assignee: Haier Smart Home Co Ltd; Qingdao Economic and Technological Development Zone Haier Water Heater Co Ltd
Priority date: 2022-03-09
Filing date: 2022-03-09
Publication date: 2022-11-29

Abstract

The invention discloses a gas water heater, comprising: the water inlet pipe and the water outlet pipe are arranged on the shell; the gas heating module comprises a burner and a heat exchanger which are arranged in the shell, the heat exchanger is arranged above the burner, and the main water inlet pipe and the main water outlet pipe are respectively connected with the heat exchanger to form a heating water flow path; the water leakage prevention device comprises a first water pipe, a second water pipe, a pressure on-off valve and a connecting pipe, wherein the pressure on-off valve is arranged in the first connecting pipe head and is used for switching a second port of the first connecting flow passage according to the water pressure at the first connecting pipe head; the connecting pipe is connected between the first connecting pipe head and the second connecting pipe head; wherein, the first water outlet pipe head is connected with the main water inlet pipe, and the second water inlet pipe head is connected with the main water outlet pipe. The serious water leakage accident caused by the damage of the inside of the gas water heater is realized, and the use reliability of the gas water heater is further improved.

Description

Gas water heater

Technical Field

The invention belongs to the technical field of household appliances, and particularly relates to a gas water heater.

Background

At present, a gas water heater is a household appliance commonly used in daily life of people, and generally comprises a shell, a burner, a heat exchanger and other components arranged in the shell, wherein a main water inlet and outlet pipe arranged on the shell is connected with the heat exchanger, and cold water entering from a main water inlet pipe can be heated by the heat exchanger and then can be output from the main water outlet pipe.

In the prior art, a gas water heater is directly connected with a water supply pipe connected with a municipal pipe network at home. When the gas water heater is not in use, the internal pipeline still bears the pressure of the municipal pipe network, so that serious water leakage is easily caused when the internal pipeline is damaged, and the use reliability is reduced.

In view of this, how to design a technique for reducing the occurrence of serious water leakage to improve the reliability of use is a technical problem to be solved by the present invention.

Disclosure of Invention

The invention provides a gas water heater, which realizes serious water leakage accidents caused by damage inside the gas water heater, and further improves the use reliability of the gas water heater.

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

in one aspect, the present invention provides a gas water heater comprising:

the water inlet pipe and the water outlet pipe are arranged on the shell;

the gas heating module comprises a burner and a heat exchanger, the heat exchanger is arranged above the burner, and the main water inlet pipe and the main water outlet pipe are respectively connected with the heat exchanger to form a heating water flow path;

the water leakage prevention device comprises a first water pipe, a second water pipe, a pressure on-off valve and a connecting pipe, wherein a first water inlet pipe head, a first connecting pipe head and a first water outlet pipe head are arranged on the first water pipe; the second water pipe is provided with a second water inlet pipe head, a second connecting pipe head and a second water outlet pipe head which are mutually communicated, the second water inlet pipe head is provided with a one-way valve, and the one-way valve is used for controlling water flow to flow into the second water pipe from the second water inlet pipe head in a one-way mode; the pressure on-off valve is arranged in the first connector head and is used for switching on and off a second port of the first connecting flow passage according to the water pressure at the first connector head; the connecting pipe is connected between the first connecting pipe head and the second connecting pipe head;

wherein, first water outlet pipe head with main inlet tube, second water inlet pipe head with main outlet pipe connects.

Compared with the prior art, the invention has the advantages and positive effects that: the pressure on-off valve is configured in the first water pipe, the pressure on-off valve is completely built in the first water pipe, the first water pipe is connected with a water supply pipe (tap water pipe) in a user home through the first water inlet pipe head, the first water pipe and the second water pipe are respectively installed on a gas water heater in the user home, when the gas water heater is in a use state, water introduced by the first water pipe is subjected to heat exchange treatment through a heat exchanger of the gas water heater and then is output from the second water pipe, at the moment, because the connecting pipe is communicated with the first connecting pipe head and the second connecting pipe head, the water pressure in the first connecting pipe head is lower than the water pressure in the first water inlet pipe head, and the pressure on-off valve opens the second port of the first connecting flow passage, so that the first water inlet pipe head is communicated with the first water outlet pipe head to realize water supply; when the gas water heater is in a water-off state, the water pressure in the first water pipe and the water pressure in the second water pipe are gradually the same, so that the water pressure in the first water inlet pipe head and the water pressure in the first connecting pipe head are balanced, and at the moment, the pressure on-off valve automatically resets and closes the second port of the first connecting flow channel; under the inside circumstances that takes place to leak of gas heater, because the second water pipe head that intakes is provided with the check valve for the water pressure in first water pipe head and the first connector still maintains balanced state, and then ensures that the delivery pipe can not follow the outside output water of first water pipe, realizes reducing the use reliability that takes place to leak the accident in order to improve electrical apparatus.

In some embodiments of the present application, the pressure shut-off valve includes a spring and a flexible sealing member, the flexible sealing member is disposed in the first connector head and used to open and close the second port of the first connection flow passage, the spring is disposed in the first connector head and used to apply an elastic force to the flexible sealing member toward the second port of the first connection flow passage.

In some embodiments of this application, flexible seal part is formed with sealing, elastic deformation portion and installation fixed part, elastic deformation portion connects the sealing with between the installation fixed part, the sealing with the two relative arrangements of port of first connection runner, the installation fixed part sets up on the inner wall of first connector head.

In some embodiments of the present application, the pressure on-off valve further includes an installation support member, the installation support member is disposed in the first connector head, the spring is disposed between the installation support member and the sealing portion, and the spring is configured to apply an elastic force toward the sealing portion in two directions of the port of the first connection flow passage.

In some embodiments of the present application, the mounting support comprises an outer sleeve and an inner sleeve, the outer sleeve being sleeved outside the inner sleeve, the outer sleeve and the inner sleeve forming a water flow channel therebetween; the outer sleeve is in threaded connection with the first connecting pipe head, and the spring is arranged in the inner sleeve.

In some embodiments of the present application, a mounting ring is disposed in the first water tube, and the mounting fixture is sandwiched between the mounting ring and the outer sleeve.

In some embodiments of the present application, an adjustment member is also disposed in the inner sleeve, the adjustment member being threaded into the inner sleeve and abutting against the spring.

In some embodiments of the present application, a first auxiliary joint is disposed on the first water pipe, a first partition is disposed in the first auxiliary joint, a first water inlet and a first water outlet are disposed on the first partition, and a second port of the first connection flow channel, the first water inlet, the first water outlet, and the first water outlet pipe head are connected in sequence;

the first auxiliary joint is provided with a first switch valve, and the first switch valve is arranged opposite to the first partition plate and is used for switching the first water inlet and/or the first water outlet.

In some embodiments of the present application, a second connection flow channel is further disposed in the second water pipe, the first port of the second connection flow channel is communicated with the second water inlet pipe head, and the second port of the second connection flow channel is communicated with the second connection pipe head and the second water outlet pipe head respectively.

In some embodiments of the present application, a second auxiliary joint is disposed on the second water pipe, a second partition is disposed in the second auxiliary joint, a second water inlet and a second water outlet are disposed on the first partition, a second port of the second connection flow channel is the second water inlet, and the second water outlet is respectively communicated with the second water outlet pipe head and the second connector pipe head;

and a second switch valve is arranged in the second auxiliary joint, is opposite to the second partition plate and is used for switching the second water inlet and/or the second water outlet.

In an embodiment of the present application, the gas water heater further includes:

the electric heating module is integrally of a flat structure, an electric heating flow channel is formed in the electric heating module, and the electric heating flow channel is connected in the heating water flow channel in series;

the electronic control box is internally provided with an electronic control board;

the electric heating module and the electric control box are both arranged in the shell, the electric heating module is arranged on one side of the gas heating module, and the electric control box is arranged on the other side of the gas heating module.

In one embodiment of the present application, the electric heating module includes a heat conduction block, a heat exchange water pipe and a heating wire pipe, the heat exchange water pipe and the heating wire pipe are all disposed on the heat conduction block, and the heat exchange water pipe forms the electric heating flow channel.

In an embodiment of the present application, the heat exchange water pipe is connected between the heat exchanger and the main water outlet pipe, or the heat exchange water pipe is connected between the heat exchanger and the main water inlet pipe.

In one embodiment of the application, the heat exchange water pipe comprises a plurality of straight pipe sections and elbow sections, and the straight pipe sections are adjacent to the elbow sections.

In one embodiment of the application, the heating wire tube comprises a linear heating section and an elbow heating section, and two adjacent linear heating sections are connected through the elbow heating section; the straight line heating section is arranged between two adjacent straight pipe sections.

In an embodiment of the present application, a temperature controller is disposed on the heat conduction block, and the heating wire tube is electrically connected to the temperature controller.

In an embodiment of the present application, still be provided with the guard shield on the heat conduction piece, the guard shield covers the temperature controller.

In an embodiment of the present application, a flow regulating valve for regulating water flow is further disposed between the heat exchanger and the main water inlet pipe.

In an embodiment of the present application, the flow regulating valve includes:

the water inlet flow passage and the water outlet flow passage are arranged in the valve body, a water inlet cavity is further arranged in the valve body, a mounting opening communicated with the water inlet cavity is further formed in the valve body, an extension pipe part extending towards the direction of the mounting opening is formed in the water inlet cavity by the water outlet flow passage, a notch is formed in the pipe orifice of the extension pipe part, and the extension pipe part and the water inlet flow passage are respectively communicated with the water inlet cavity;

the valve core comprises a driving part and a valve plate, the valve plate is arranged on the driving part, the driving part is arranged on the mounting port in a sealing mode, and the driving part is used for driving the valve plate to be close to or far away from the extension pipe part;

the water inlet flow channel is connected with the main water inlet pipe, and the water outlet flow channel is connected with the heat exchanger.

In one embodiment of the application, a self-generating mechanism for generating electricity by utilizing inflow water flow is further arranged in the inflow channel.

In one embodiment of the application, from power generation mechanism includes generator, water wheels and installing support, set up between the installation in the runner of intaking, the generator sets up on the installing support, water wheels sets up in the pivot of generator.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the description of the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and those skilled in the art can obtain other drawings based on the drawings without inventive labor.

FIG. 1 is a schematic structural view of an embodiment of a gas water heater according to the present invention;

FIG. 2 is a schematic view of a water leakage preventing device;

FIG. 3 isbase:Sub>A sectional view taken along line A-A of FIG. 2;

FIG. 4 is a sectional view taken along line B-B of FIG. 2;

FIG. 5 is a partial enlarged view of the area C in FIG. 3;

FIG. 6 is a cross-sectional view of the first water tube;

FIG. 7 is a cross-sectional view of a second water tube;

FIG. 8 is an exploded view of the pressure shut-off valve;

FIG. 9 is a schematic view of a portion of another embodiment of the gas water heater of the present invention;

FIG. 10 is a schematic diagram of the electrical heating module of FIG. 9;

FIG. 11 is a partial cross-sectional view of the electrical heating module of FIG. 10;

FIG. 12 is a schematic view of the flow regulating valve of the present invention;

FIG. 13 is a cross-sectional view of the flow regulating valve of the present invention;

FIG. 14 is a schematic view of the valve body of the present invention;

FIG. 15 is an enlarged partial view of the area I in FIG. 14;

fig. 16 is one of the structural schematic diagrams of the self-generating mechanism of the present invention;

fig. 17 is a second schematic structural view of the self-generating mechanism of the present invention.

Detailed Description

In order to make the objects, 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 with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

It should be noted that in the description of the present invention, the terms of direction or positional relationship indicated by the terms "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, which are only for convenience of description, and do not indicate or imply that the device or element must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

The gas water heater adopts gas as a main energy material, and high-temperature heat generated by gas combustion is transferred to cold water flowing through a heat exchanger so as to achieve the purpose of preparing hot water.

The gas water heater generally comprises a shell, a combustor, a heat exchanger, a fan cover, an electric control box and the like, wherein the combustor, the heat exchanger, the fan cover, the electric control box and the like are arranged in the shell. Wherein the heat exchanger is arranged above the burner to form a gas heating module. An electric control board is arranged in the electric control box to control the action of electric parts in the gas water heater, the gas is conveyed to the burner, and the electric control board controls the ignition device to ignite the gas, so that the burner burns the conveyed gas, and further generates heat.

Be provided with the heat exchange tube in the heat exchanger, the one end and the supply channel intercommunication of heat exchange tube, the other end and gondola water faucet or faucet of heat exchange tube etc. intercommunication.

The heat generated by the combustion of the gas by the combustor is used for heating the heat exchange pipe, so that the water temperature in the heat exchange pipe is increased to form hot water.

When the gas water heater works, cold water provided by the water supply pipeline flows into the heat exchange pipe, is heated into hot water by the heating source generated by the burner, and then flows out from the shower head or the water faucet through the hot water valve for a user to use.

Meanwhile, when the gas water heater works, the fan is electrified and runs simultaneously, and smoke generated by the combustor is discharged outdoors under the action of the fan.

First embodiment, as shown in fig. 1 to 8, in addition to the housing 100 of the conventional art, and the burner 200, the heat exchanger 300 and the electronic control box 500 disposed in the housing 100, the gas water heater of the present embodiment, water introduced from the main water inlet pipe enters the heat exchanger 300, heats the water in the heat exchanger 300 by using heat generated by combustion of the burner 200, and then outputs the water from the main water outlet pipe.

In order to improve the ability of preventing water leakage, the gas water heater of this embodiment further includes a water leakage preventing device 700, and the water leakage preventing device 700 includes: a first water pipe 7100, a second water pipe 7200, a pressure on-off valve 7300, and a connection pipe 7400.

The first water pipe 7100 is provided with a first water inlet pipe head 7101, a first connecting pipe head 7102 and a first water outlet pipe head 7103, a first connecting flow channel 7104 is also arranged in the first water pipe 7100, a first port of the first connecting flow channel 7104 is communicated with the first water inlet pipe head 7101, and a second port of the first connecting flow channel 7104 is communicated with the first water outlet pipe head 7103; the second water pipe 7200 is provided with a second water inlet pipe head 7201, a second connector pipe head 7202 and a second water outlet pipe head 7203 which are communicated with each other, the second water inlet pipe head 7201 is provided with a one-way valve 7208, and the one-way valve is used for controlling water flow to flow into the second water pipe 7200 from the second water inlet pipe head 7201 in a one-way manner; a pressure on-off valve 7300 is provided in the first connector 7102 and serves to switch the second port of the first connection flow passage 7104 according to the water pressure at the first connector 7102; a connecting tube 7400 is connected between the first connector head 7102 and the second connector head 7202; wherein, first water outlet pipe head with main inlet tube, second water inlet pipe head with main outlet pipe connects.

Specifically, the water leakage prevention device 700 provided by the embodiment of the present application is used for being installed on a gas water heater in a user's home to perform water leakage prevention protection on the gas water heater.

The water leakage preventing device 700 mainly includes a first water pipe 7100, a second water pipe 7200, a pressure on-off valve 7300, and a connection pipe 7400.

The first water inlet pipe head 7101 of the first water pipe 7100 is used for being connected with an external water supply pipe to introduce tap water of a municipal pipe network, and the first water outlet pipe head 7103 of the first water pipe 7100 is connected with a water inlet pipe orifice of a gas water heater in the home of a user to convey the tap water into the gas water heater.

The second water inlet pipe head 7201 of the second water pipe 7200 is used for being connected with the water outlet pipe mouth of the gas water heater, so that the water treated by the gas water heater is output. The second water outlet pipe head 7203 of the second water pipe 7200 is connected to a water using terminal in the home of the user, so that the final output of water is realized.

The first and

second water pipes

7100 and 7200 are connected to each other by a connecting pipe 7400, so that the first and second connector heads 102 and 202 are connected to each other.

The pressure on/off valve 7300 of the first connector 102 is capable of operating in response to the pressure generated between the water pressure in the first connector 102 and the second port of the first connection flow path 7104, thereby preventing water leakage.

In the using process, under the normal condition, the conventional gas water heater is provided with two external connectors for connecting external water pipes, when the conventional gas water heater is installed, the first water outlet pipe head 7103 is connected with one external connector of the gas water heater, and the second water inlet pipe head 7201 is connected with the other external connector of the gas water heater.

In the process that the user passes through water terminal use water, second water pipe 7200 then passes through this moment the second outlet pipe is connected with the water terminal and is upwards exported water, and at this moment, the water pressure in the second water pipe 7200 reduces compared in the water pressure that first water inlet tube head 7101 goes out, and meanwhile, first connector head 102 is owing to communicate with second connector head 202 through connecting pipe 7400, and then makes the water pressure of first connector head 102 department also correspondingly reduce. The water introduced from the first inlet nozzle 7101 is outputted through the second top-open pressure on-off valve 7300 at the port of the first connecting flow passage 7104 and finally flows into the gas water heater through the first outlet nozzle 7103.

After the user closes the water terminal, since the tap water pressure of the external water supply pipe is transferred to the second water pipe 7200, and the water pressure of the first connector 102 is gradually increased and finally becomes the same as the water pressure of the first water inlet pipe 7101, at this time, the pressure on-off valve 7300 is automatically reset to close the second port of the first connection flow channel 7104.

At this time, if the gas water heater is broken and leaks water inside itself, since the second water inlet pipe head 7201 of the second pipe body is configured with the check valve, leakage occurs at the water end, the change of the water pressure in the second pipe body is not caused, and then the pressure on-off valve 7300 is always in a state of closing the second port of the first connecting flow channel 7104, and finally, under the condition that the inside of the gas water heater is damaged, no tap water is input into the gas water heater to cause serious leakage.

Through dispose the pressure on-off valve in first water pipe, the pressure on-off valve is built-in first water pipe completely, first water pipe is connected through first water inlet tube head and delivery pipe (water pipe) in the user's house, first water pipe and second water pipe are installed respectively on the gas heater in the user's house, gas heater is under the user state, the water that first water pipe was introduced is exported from the second water pipe after gas heater handles, at this moment, because first connector head of connecting pipe intercommunication and second connector head, the water pressure in the first connector head is less than the water pressure in the first water inlet tube head, at this moment, the pressure on-off valve then opens the port two of first connecting runner to make first water inlet tube head and first water outlet tube head communicate and realize supplying water. When the gas water heater is in a water-off state, the water pressure in the first water pipe and the water pressure in the second water pipe are gradually the same, so that the water pressure in the first water inlet pipe head and the water pressure in the first connecting pipe head are balanced, and at the moment, the pressure on-off valve automatically resets and closes the second port of the first connecting flow channel; under the inside condition that takes place to leak of gas heater, because the second water pipe head is provided with the check valve for water pressure in first water pipe head and the first connector still maintains balanced state, and then ensures that the delivery pipe can not follow the outside output water of first water pipe, realizes reducing the use reliability that takes place to leak the accident in order to improve electrical apparatus.

In some embodiments, the pressure on/off valve 7300 relies primarily on the water pressure differential between the first inlet 7101 and the first connector 102 to provide mechanical on/off control. To this end, the pressure on-off valve 7300 may include a spring 7301 and a flexible sealing member 7302, the flexible sealing member 7302 being disposed in the first connector 7102 and opening and closing the second port of the first connection flow passage 7104, the spring 7301 being disposed in the first connector 7102 and applying elastic force to the flexible sealing member 7302 in a direction toward the second port of the first connection flow passage 7104.

Specifically, the flexible sealing member 7302 is disposed opposite to the second port of the first connecting flow passage 7104 and is used to block the second port of the first connecting flow passage 7104. The two sides of the flexible sealing part 7302 in the first connector 102 are respectively acted by water pressure in different connector, so as to deform according to different pressure differences, and further open and close the second port of the first connecting flow channel 7104.

In the process that a user uses water through the water using terminal, the water pressure in the first connector 102 is reduced, and under the action of the water pressure at the second port of the first connecting flow passage 7104, the flexible sealing part 7302 is deformed to open the second port of the first connecting flow passage 7104, so that the water entering the first water pipe 7100 from the first water inlet connector 7101 is output from the second port of the first connecting flow passage 7104 and finally flows into the gas water heater from the first water outlet connector 7103.

When the user closes the water use terminal to stop using water, the water pressure in the first connector 102 gradually rises to gradually offset the water pressure generated by the second port of the first connection flow channel 7104, and under the action of the spring 7301, the flexible sealing member 7302 is deformed toward the second port of the first connection flow channel 7104 and finally blocks the second port of the first connection flow channel 7104.

In some embodiments, in order to facilitate the installation of the flexible sealing member 7302, the flexible sealing member 7302 is formed with a sealing part 73021, an elastic deformation part 73022, and an installation fixing part 73023, the elastic deformation part 73022 is connected between the sealing part 73021 and the installation fixing part 73023, the sealing part 73021 is disposed opposite to the second port of the first connection flow passage 7104, and the installation fixing part 73023 is disposed on the inner wall of the first connector header 7102.

Specifically, the sealing part 73021 formed by the flexible sealing part 7302 is used for blocking the second port of the first connecting flow passage 7104, the elastic deformation part 73022 is used for meeting the requirement that the sealing part 73021 can open and close the second port of the first connecting flow passage 7104 under the action of different water pressures, and the mounting fixing part 73023 is used for being mounted in the first connector 102.

In some embodiments, the pressure on-off valve 7300 further includes a mounting support 7303, the mounting support 7303 is disposed in the first connector head 102, a spring 7301 is disposed between the mounting support 7303 and the sealing part 73021, and the spring 7301 is used to apply elastic force to the sealing part 73021 in two directions toward the port of the first connecting flow passage 7104.

Specifically, in order to facilitate the installation of the spring 7301 in the first connector 102, the mounting support 7303 may be disposed in the first connector 102 by using a screw connection or an interference fit, and the spring 7301 may be supported by the mounting support 7303, so that the spring 7301 may provide an effective elastic force to the sealing portion 73021.

Wherein, the mounting support 7303 comprises an outer sleeve 73031 and an inner sleeve 73032, the outer sleeve 73031 is sleeved outside the inner sleeve 73032, and a water flow channel 73033 is formed between the outer sleeve 73031 and the inner sleeve 73032; an outer sleeve 73031 is threaded into the first connector head 102 and a spring 7301 is disposed within the inner sleeve 73032.

Specifically, when the outer sleeve 73031 is assembled with the first connector 102 by means of a screw, the spring 7301 can be supported and installed by the inner sleeve 73032 since the outer sleeve 73031 and the inner sleeve 73032 are connected to each other.

The inner cannula 73032 can be suspended in the outer cannula 73031 by a connecting rod between the outer cannula 73031 and the inner cannula 73032, thereby forming a water flow channel 73033.

The water flow channel 73033 may satisfy a requirement that the water pressure in the connection pipe 7400 is directly transmitted to the flexible sealing part 7302, so as to ensure a smooth water path and ensure accurate transmission of the water pressure.

In some embodiments, to fixedly mount the flexible sealing member 7302, a mounting ring 7105 is disposed in the first water tube 7100, and the mounting fixing portion 73023 is sandwiched between the mounting ring 7105 and the outer sleeve 73031.

Specifically, an installation ring 7105 is disposed on one side of the first connection flow channel 7104 on the inner wall of the first water pipe 7100, and the installation ring 7105 is matched with the outer sleeve 73031 to fix the flexible sealing member 7302.

During assembly, the flexible sealing part 7302 is placed into the first connector head 102 and against the mounting ring 7105, and then the outer sleeve 73031 is inserted into the first connector head 102, so that the mounting fixture 73023 is clamped between the mounting ring 7105 and the outer sleeve 73031 to achieve a firm fixed mounting of the flexible sealing part 7302.

In some embodiments, an adjustment member 7304 is further disposed in the inner cannula 73032, and the adjustment member 7304 is threaded into the inner cannula 73032 and abuts against the spring 7301.

Specifically, the water pressure of the water supply networks in different regions is different, and therefore, the elastic force generated by the spring 7301 on the flexible sealing member 7302 needs to be adjusted correspondingly to the local water pressure, so as to ensure that the flexible sealing member 7302 can perform a good sealing function on the first connecting flow channel 7104.

In practical use, when an operator installs the water pressure regulator at home, before connecting the connecting pipe 7400 to the first water pipe 7100 and the second water pipe 7200, the amount of deformation of the spring 7301 in the initial state can be changed by adjusting the adjusting component 7304, so as to meet the water pressure requirement of the local water supply network. As the adjusting member 7304, a screw member such as a bolt can be preferably used.

And after the initial amount of deformation of the spring 7301 is adjusted, the connection tube 7400 can be connected between the first water tube 7100 and the second water tube 7200.

In another embodiment, in order to facilitate a user to directly perform a waterway switching operation on the water leakage preventing device 700, a first auxiliary connector 7106 is disposed on the first water pipe 7100, a first partition 7107 is disposed in the first auxiliary connector 7106, a first water inlet (not labeled) and a first water outlet (not labeled) are disposed on the first partition 7107, and a second port of the first connecting flow channel 7104, the first water inlet, the first water outlet and the first water outlet pipe head 7103 are sequentially connected;

a first switching valve 7108 is arranged in the first auxiliary joint 7106, and the first switching valve 7108 is arranged opposite to the first partition 7107 and is used for switching the first water inlet and/or the first water outlet.

Specifically, in the actual use process, when a user needs to completely close the water leakage prevention device 700, the first switch valve 7108 can be operated to act, the first water inlet and/or the first water outlet are/is opened and closed through the first switch valve 7108 to actively control the on-off of the flow path between the first water inlet pipe head 7101 and the first water outlet pipe head 7103, and then when the water leakage prevention device 700 is completely closed as required, the use reliability is further improved.

The specific structure of the first on-off valve 7108 may adopt a valve core structure in a conventional water valve, which is not limited or described herein.

In another embodiment, a second connection flow passage 7204 is further disposed in the second water pipe 7200, a first port of the second connection flow passage 7204 is connected to the second water inlet pipe head 7201, and a second port of the second connection flow passage 7204 is respectively connected to the second connection pipe head 7202 and the second water outlet pipe head 7203.

Specifically, in order to satisfy the requirement of supplying water to both the second water inlet pipe head 7203 and the second connector head 202, the second connection flow passage 7204 is disposed in the second water pipe 7200 to distribute water.

Similarly, in order to completely close the second water pipe 7200, a second auxiliary joint 7205 is arranged on the second water pipe 7200, a second partition plate 7206 is arranged in the second auxiliary joint 7205, a second water inlet and a second water outlet are arranged on the first partition plate 7107, a second port of the second connecting flow passage 7204 is the second water inlet, and the second water outlet is respectively communicated with the second water outlet pipe head 7203 and the second connector pipe head 202; a second switching valve 7207 is disposed in the second subsidiary joint 7205, and the second switching valve 7207 is disposed opposite to the second partition 7206 and is used to switch the second water inlet and/or the second water outlet.

Specifically, in the in-service use process, when the user needs to completely close the second water pipe 7200, the second switch valve 7207 can be operated to act, the second water inlet is opened and closed through the second switch valve 7207 and/or the second water outlet is in order to realize the flow path between the second water inlet pipe head 7201 and the second water outlet pipe head 7203 and the second connector pipe head 202 of active control break-make, and then the second water pipe is completely closed as required, and further the use reliability is more favorably improved.

The specific structure of the second switch valve 7207 may adopt a valve core structure in a conventional water valve, which is not limited and described herein.

In the second embodiment, as shown in fig. 9 to 17, the gas water heater of the present embodiment further includes an electric heating module 400, and an electric heating flow channel is formed in the electric heating module 400. The main water inlet pipe 101 and the main water outlet pipe 102 are respectively connected with the heat exchanger 300 to form a heating water flow path, the electric heating flow path is connected in series in the heating water flow path, the electric heating module is arranged on one side of the gas heating module, and the electric control box is arranged on the other side of the gas heating module.

Specifically, the gas water heater of the present embodiment has the gas water heater as a main body and is additionally provided with an electric heating module 400, wherein the electric heating module 400 is disposed inside the casing 100 to form an integrated structure.

In order to meet the design requirement of miniaturization and compactness, the mounting position of the electric heating module 400 can be arranged on one side of the gas heating module, and the electric control box 500 can be arranged on the other side of the gas heating module. The electric heating module 400 can be mounted by fully utilizing the area between the gas heating module and the side wall of the housing 100, so that the internal structure of the housing 100 is more compact.

In a certain embodiment, the following structure may be adopted for the specific structure of the electric heating module. Namely, the electric heating module comprises a heat conduction block 1, a heat exchange water pipe 2 and a heating wire pipe 3, wherein the heat exchange water pipe and the heating wire pipe are both arranged on the heat conduction block, and the heat exchange water pipe forms the electric heating flow channel.

Specifically, the heat conducting block is used as a bearing part for mounting the heat exchange water pipe and the heating wire pipe, the heat conducting block is made of a material with high heat conduction efficiency (such as aluminum or copper), on one hand, the heat conducting block can fix the heat exchange water pipe and the heating wire pipe, on the other hand, the heat conducting block can rapidly transmit heat generated by the heating wire pipe to the heat exchange water pipe, and therefore heating efficiency of the heating wire pipe on the heat exchange water pipe is improved.

In the actual assembling process, after the heat exchange water pipe and the heating wire pipe are installed and fixed on the heat conduction block, the electric heating module is installed and fixed in the shell through the heat conduction block. Specifically, the heat conduction block may be provided with a connecting plate 11, the connecting plate may be provided with a fixing hole 12, the connecting plate 11 is attached to the burner 200, and then a screw is inserted through the fixing hole 12 to fix the heat conduction block to the burner 200. Of course, the connecting plate 11 can be attached to other components to complete the fixing according to the requirement, and is not limited and described herein.

In another embodiment, in order to improve the heating efficiency, the heat exchange water pipe comprises a plurality of straight pipe sections 21 and elbow sections 22, and two adjacent straight pipe sections are connected through the elbow sections.

Specifically, the heat exchange water pipe is arranged on the heat conduction block in a circuitous and bent mode, so that the length of the heat exchange water pipe can be effectively prolonged, and the heating time of water flow in the heat exchange water pipe is prolonged, so that the heating efficiency is improved.

Correspondingly, the heating wire tube comprises a linear heating section 31 and an elbow heating section 32, and two adjacent linear heating sections are connected through the elbow heating section; the straight heating section is arranged between two adjacent straight pipe sections.

Specifically, in order to right the heat transfer water pipe evenly just heats high-efficiently, the heating wire pipe with the heat transfer water pipe is crooked along with the shape, and both spirals back, imbeds mutually, has saved space utilization greatly, can make the heating device of higher power with less volume. Meanwhile, the heating wire pipe and the heat exchange water pipe are uniform in gap, and efficient heat conduction is facilitated.

Preferably, a heat insulating layer (not shown) may be further disposed outside the heat conducting block, on one hand, the heat insulating layer can reduce heat conducted by the heat conducting block from being dissipated to the outside to improve heating efficiency, and on the other hand, the heat insulating layer can reduce heat conduction influence of the heat conducting block on the housing 100 to improve user experience.

In some embodiments, in order to facilitate the control of the temperature of the outlet water of the heat exchange water pipe, a temperature controller 4 is arranged on the heat conduction block, and the heating wire pipe is electrically connected with the temperature controller. Specifically, the temperature of the water outlet of the heat exchange water pipe can be controlled by the temperature controller 4, the temperature of the water outlet end of the heat exchange water pipe can be detected by the temperature sensing probe of the temperature controller 4, and the heating power of the heating wire pipe is regulated and controlled by the temperature controller 4.

In order to protect the temperature controller 4, a shield 5 is further arranged on the heat conducting block, and the shield covers the temperature controller.

In addition, for a gas water heater using gas as energy, in addition to the burner 200 and the heat exchanger 300, components such as the fan 103 and the water pump 104 are disposed in the housing 100, and the heat exchanger 300 is disposed above the burner 200 and the components such as the fan 103 and the water pump 104 are disposed below the burner 200 in a conventional layout manner.

In some embodiments, there may be at least two ways for the water flow connection location of the electrical heating module 400. In the first mode, the electric heating module 400 is connected between the main water inlet pipe and the heat exchanger 300, that is, the heat exchange water pipe is connected between the heat exchanger and the main water inlet pipe; in the second mode, the electric heating module 400 is connected between the heat exchanger 300 and the main water outlet pipe, that is, the heat exchange water pipe is connected between the heat exchanger and the main water outlet pipe.

In the present embodiment, the electric heating module 400 is connected between the main water outlet pipe and the heat exchanger 300 as an example. Cold water conveyed by a water supply pipe in a user's home enters the main water inlet pipe, enters the electric heating module 400 after passing through the heat exchanger 300, and finally water flowing out of the electric heating module is output through the main water outlet pipe.

In other embodiments, a flow regulating valve 600 may be further disposed between the main water inlet pipe 101 and the heat exchanger 300. The flow regulating valve 600 includes: a valve body 31 and a valve spool 32. A water inlet flow passage 311 and a water outlet flow passage 312 are arranged in the valve body 31, a water inlet cavity 310 is further arranged in the valve body 31, a mounting opening 313 communicated with the water inlet cavity 310 is further arranged on the valve body 31, an extension pipe part 314 extending towards the mounting opening 313 direction is formed in the water outlet flow passage 312 in the water inlet cavity 310, a notch 3141 is formed in the pipe orifice of the extension pipe part 314, and the extension pipe part 314 and the water inlet flow passage 311 are respectively communicated with the water inlet cavity 310; the valve body 32 includes a driving member 321 and a valve plate 323, the valve plate 323 is disposed on the driving member 321, the driving member 321 is sealingly disposed on the mounting port 313, and the driving member 321 is configured to drive the valve plate 323 toward or away from the extension pipe portion 314 to selectively open and close the extension pipe portion 314 by the valve plate 323.

In actual use, the valve body 31 is connected between the heat exchanger 300 and the main water inlet pipe 101 in the gas water heater, water conveyed by a tap water pipe enters the water inlet flow passage 311 of the valve body 31 through the main water inlet pipe 101, and water flows into the water inlet cavity 310 and is output from the water outlet flow passage 312 to enter the heat exchanger 300 through the extension pipe part 314.

When the water is heated by the heat exchanger, the driving member 321 drives the valve plate 323 away from the nozzle of the extension pipe portion 314 to fully open the flow regulating valve, and the flow of the water introduced from the tap water pipe is not restricted from entering the heat exchanger for heating.

Since the gas water heater is also provided with the electric heating module 400, water flowing out of the main water outlet pipe also flows through the electric heating module 400. When water needs to be heated by the electric heating module 400 alone, the water cannot be heated to the set temperature due to the small heating power of the electric heating module 400. At this time, the driving member 321 then drives the valve plate 323 to close the orifice of the extension pipe portion 314 to close the flow regulating valve; since the opening 3141 is formed in the nozzle of the extension pipe portion 314, the valve plate 323 does not close the opening 3141, so that the water in the water inlet cavity 310 can flow into the extension pipe portion 314 from the opening 3141 and output a certain flow of water from the water outlet flow passage 312, thereby restricting the flow of water.

In this way, a lower flow of water enters the electric heating module 400, and the electric heating module 400 can heat the water flow to a desired temperature output to meet the user's demand for hot water.

In some embodiments, the surfaces of the valve plate 323 opposite the extension pipe portion 314 form sealing surfaces for a good seal against the orifice of the extension pipe portion 314. Specifically, after the valve plate 323 abuts on the extension pipe portion 314, the nozzle of the extension pipe portion 314 is sealed with the sealing surface formed by the valve plate 323.

In some embodiments, the drive member 321 may take a variety of forms, as will be illustrated below.

In order to meet the requirement of miniaturization, for the driving member 321, it includes a flange 3211, a coil 3212, an iron core 3213 and a spring 3214, the coil 3212 is disposed on the flange 3211, the iron core 3213 is slidably disposed in the coil 3212, the spring 3214 is disposed between the iron core 3213 and the flange 3211, the valve plate 323 is disposed on the iron core 3213, and the flange 3211 is sealingly disposed on the mounting port 313.

Specifically, the driving member 321 is electromagnetically driven, and the coil 3212 is energized to drive the iron core 3213 to drive the valve plate 323 to move, so as to close the nozzle of the extension pipe portion 314. After the coil 3212 is powered off, the iron core 3213 drives the valve plate 323 to move in the opposite direction to extend the nozzle of the tube 314 under the action of the spring 3214.

In one embodiment, in order to ensure that the notch 3141 ensures a desired flow rate of water into the extension pipe portion 314 after the valve plate 323 closes the orifice of the extension pipe portion 314, the water inflow direction of the notch 3141 is offset from the center line of the extension pipe portion 314 with respect to the notch 3141.

Specifically, when water in the water inlet cavity 310 enters the extension pipe portion 314 through the notch 3141, because the two side walls of the notch 3141 are arranged in a manner of deviating from the central line of the extension pipe portion 314, after the water enters the extension pipe portion 314 from the notch 3141, a rotational flowing water flow is formed in the extension pipe portion 314, so that the water flow introduced by the notch 3141 at different positions can not generate additional water resistance, and the water flow is further improved.

In another embodiment, the outlet direction of the inlet water flow passage 311 is toward the outer wall of the extension pipe portion 314.

Specifically, the valve body 31 is integrally formed in a three-way structure, and when water supplied to the water inlet channel 311 enters the water inlet cavity 310, the water flow enters the water outlet channel 312 from the extension pipe 314 in the water inlet cavity 310 and is finally output.

The flow of water introduced into the water inlet passage 311 flows toward the outer wall of the extension pipe portion 314, and is uniformly divided by the obstruction of the extension pipe portion 314. In this way, after the valve plate 323 closes the nozzle of the extension pipe portion 314, the water flow can be uniformly distributed in the water inlet cavity 310, and then water can be uniformly fed into the extension pipe portion 314 through the notches 3141 at different positions of the nozzle of the extension pipe portion 314.

In the preferred embodiment, the outer wall of the extension pipe portion 314 is further provided with a water blocking rib 3142.

Specifically, because the pipe orifice of the extension pipe portion 314 is suspended in the water inlet cavity 310, the water flow introduced from the water inlet channel 311 flows towards both sides after impacting the outer wall of the extension pipe portion 314, and slows down the water flow under the action of the water blocking rib 3142, so that the water in the water inlet cavity 310 can enter the extension pipe portion 314 through the notches 3141 at different positions.

Wherein, the extension pipe portion 314 is provided with two water blocking ribs 3142, and the two water blocking ribs 3142 are distributed at two sides of the outlet of the water inlet channel 311.

Specifically, dispose water retaining rib 3142 in the both sides of extension pipe portion 314, water retaining rib 3142 will block the rivers of inlet channel 311 output in the both sides of extension pipe portion 314, and then more be favorable to the periphery evenly distributed rivers at extension pipe portion 314 to reduce the condition that inlet water flow impact caused the breach 3141 inflow uneven of different positions department and take place.

In some embodiments, a self-generating mechanism 33 for generating electricity using the inflow water is further disposed in the inflow channel 311.

Specifically, the self-generating mechanism 33 is disposed in the water inlet 311, the self-generating mechanism 33 generates electricity by using the water flowing in the water inlet 311, and the self-generating mechanism 33 can supply electricity to relevant electrical components in the gas water heater as required by using the electric energy generated by the water flow.

For example: the valve body 31 is further provided with a flow sensor (not shown) which detects the flow of water flowing through the valve body, and the self-generating mechanism 33 can supply power to the flow sensor.

Alternatively, a water temperature sensor (not shown) is disposed on a pipe wall of the valve body 31, the water temperature sensor can detect the temperature of the water flowing through the valve body 31, and the self-generating mechanism 33 can supply power to the water temperature sensor.

For the structural forms of the water temperature sensor and the flow sensor, the sensor form in the conventional technology can be adopted, and no limitation and repeated description are provided herein.

In some embodiments, the self-generating mechanism 33 includes a generator 331, a water wheel 332, and a mounting bracket 333, the mounting bracket is disposed in the water inlet flow passage 311, the generator 331 is disposed on the mounting bracket 333, and the water wheel 332 is disposed on a rotating shaft of the generator 331.

Specifically, the generator 331 is installed in the water inlet flow passage 311 through the installation support 333, and the installation support 333 can meet the installation requirement of the generator 331 and reduce water resistance to water flow. The water wheel 332 is installed on the generator 331, and the water flowing through the water inlet channel 311 drives the water wheel 332 to rotate so as to drive the generator 331 to generate electricity.

Preferably, the mounting bracket 333 has a cylindrical structure as a whole, a plurality of support rods 3331 are provided at one port of the mounting bracket 333, and the generator 331 is disposed between the support rods 3331. The supporting rod 3331 can meet the installation requirement of the generator 331, and the supporting rod 3331 can reduce the resistance to the water flow to the maximum extent.

Furthermore, in order to improve the power generation efficiency of the water flow, a plurality of guide plates 3332 are arranged at the other end of the mounting bracket 333, the plurality of guide plates 3332 are arranged obliquely around the center line of the mounting bracket 333, the water flowing through the water inlet channel 311 is guided by the guide plates 3332 to form a rotational flowing water flow, and the rotational flowing water flow enters the mounting bracket 333 to impact the water wheel 332 to rotate, so that the power generation efficiency can be improved more effectively.

The above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing embodiments, or equivalents may be substituted for some of the features thereof; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions.

Claims

1. A gas water heater, comprising:

the water inlet pipe and the water outlet pipe are arranged on the shell;

the gas heating module comprises a burner and a heat exchanger which are arranged in the shell, the heat exchanger is arranged above the burner, and the main water inlet pipe and the main water outlet pipe are respectively connected with the heat exchanger to form a heating water flow path;

2. The gas water heater of claim 1, wherein the pressure on-off valve includes a spring and a flexible sealing member, the flexible sealing member being disposed within the first connector head and being for opening and closing the second port of the first connection flow passage, the spring being disposed within the first connector head and being for applying an elastic force to the flexible sealing member in a direction toward the second port of the first connection flow passage.

3. The gas water heater of claim 2, wherein the flexible sealing member is formed with a sealing portion, an elastically deformable portion and an installation fixing portion, the elastically deformable portion is connected between the sealing portion and the installation fixing portion, the sealing portion is arranged opposite to the port of the first connection flow passage, and the installation fixing portion is disposed on the inner wall of the first connector head.

4. The gas water heater of claim 3, wherein the pressure on-off valve further comprises a mounting support disposed in the first connector head, the spring disposed between the mounting support and the sealing portion, the spring for applying a spring force to the sealing portion in a direction toward the port of the first connecting flow passage; the mounting support comprises an outer sleeve and an inner sleeve, the outer sleeve is sleeved outside the inner sleeve, and a water flow channel is formed between the outer sleeve and the inner sleeve; the outer sleeve is in threaded connection with the first connecting pipe head, and the spring is arranged in the inner sleeve.

5. The gas water heater of claim 4, wherein an adjustment member is further disposed in said inner sleeve, said adjustment member being threaded into said inner sleeve and abutting against said spring.

6. The gas water heater of any one of claims 1-5, further comprising:

the electric heating module is integrally in a flat structure, an electric heating flow channel is formed in the electric heating module, and the electric heating flow channel is connected in the heating water flow channel in series;

7. The gas water heater of claim 6, wherein the electrical heating module comprises a heat conduction block, a heat exchange water pipe and a heating wire pipe, the heat exchange water pipe and the heating wire pipe are both arranged on the heat conduction block, and the heat exchange water pipe forms the electrical heating flow passage.

8. The gas water heater of claim 6, further comprising a flow regulating valve for regulating water flow between the heat exchanger and the main water inlet pipe.

9. The gas water heater of claim 8, wherein the flow regulating valve comprises:

the water inlet channel is connected with the main water inlet pipe, and the water outlet channel is connected with the heat exchanger.

10. The gas water heater according to claim 9, wherein a self-generating mechanism for generating electricity by using the flow of the inlet water is further provided in the inlet water flow channel; the self-generating mechanism comprises a generator, a water wheel and a mounting bracket, the generator is arranged in the water inlet flow channel between the mounting brackets, the generator is arranged on the mounting bracket, and the water wheel is arranged on a rotating shaft of the generator.