CN219367965U - Gas water heater - Google Patents

Abstract

The utility model discloses a gas water heater, comprising: the shell is provided with a water inlet main pipe and a water outlet main pipe; a burner disposed in the housing and for burning a fuel gas; a heat exchanger arranged above the burner and for heat exchange with the water supply flow; the flow regulating valve comprises a valve shell and a valve core assembly, a water inlet pipe, a first water outlet pipe and a second water outlet pipe are arranged on the valve shell, and the valve core assembly is arranged on the valve shell and used for regulating the opening degrees of the first water outlet pipe and the second water outlet pipe; the water inlet pipe is connected with the water inlet main pipe, the first water outlet pipe is connected with the inlet of the heat exchanger through the first connecting water pipe, the outlet of the heat exchanger is connected with the water outlet main pipe through the second connecting water pipe, the second water outlet pipe is provided with a bypass pipe, and the bypass pipe is connected with the second connecting water pipe. The method reduces the fluctuation range of the outlet water temperature of the gas water heater so as to improve the use experience of users.

Description

Gas water heater

Technical Field

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

Background

At present, the water heater is a household appliance commonly used in daily life of people. The water heater is classified into a gas water heater, an electric water heater, and the like, wherein the gas water heater is widely used because of its convenient use. Conventional gas water heaters typically include a burner that combusts gas within a combustion chamber to heat water flowing through a heat exchanger, a combustion chamber, and a heat exchanger.

In the actual use process of the gas water heater, when the water is closed for a short time to use the hot water again, the burner heats the hot water in the heat exchanger again, so that the water temperature can be increased, and the use experience of a user is affected.

In view of this, it is an object of the present utility model to design a technique for reducing water temperature fluctuations occurring during water consumption to improve user experience.

Disclosure of Invention

The utility model provides a gas water heater, which can reduce the fluctuation range of the outlet water temperature of the gas water heater so as to improve the use experience of users.

In order to achieve the technical purpose, the utility model is realized by adopting the following technical scheme:

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

the shell is provided with a water inlet main pipe and a water outlet main pipe;

a burner disposed in the housing for combusting a fuel gas;

a heat exchanger arranged above the burner and for water supply flow heat exchange;

the flow regulating valve comprises a valve shell and a valve core assembly, wherein the valve shell is provided with a water inlet pipe, a first water outlet pipe and a second water outlet pipe, and the valve core assembly is arranged on the valve shell and used for regulating the opening degrees of the first water outlet pipe and the second water outlet pipe;

The water inlet pipe is connected with the water inlet main pipe, the first water outlet pipe is connected with the inlet of the heat exchanger through a first connecting water pipe, the outlet of the heat exchanger is connected with the water outlet main pipe through a second connecting water pipe, a bypass pipe is arranged on the second water outlet pipe, and the bypass pipe is connected with the second connecting water pipe.

In an embodiment of the present application, the bypass pipe is arranged below the burner.

In an embodiment of the present application, the first connecting water pipe is disposed at one side of the burner, and the second connecting water pipe is disposed at the other side of the burner.

In an embodiment of the present application, a fan is further disposed in the housing, the fan and the flow control valve are disposed below the burner, the fan is close to one side wall of the housing, and the flow control valve is close to the other side wall of the housing.

In an embodiment of the application, the heat exchanger comprises a fence and heat exchange tubes, wherein the heat exchange tubes are arranged in the fence in a roundabout manner, and the heat exchange tubes are connected between the first connecting water tubes and the second connecting water tubes.

In an embodiment of the application, the valve core assembly includes a driving component, a first flow control component and a second flow control component, the first flow control component and the second flow control component are disposed in the valve housing, the first flow control component is disposed at the first water outlet pipe and is used for controlling the flow rate of the first water outlet pipe, and the second flow control component is disposed at the second water outlet pipe and is used for controlling the flow rate of the second water outlet pipe.

In one embodiment of the present application, the flow regulating valve has a first position, a second position, and a third position;

the flow regulating valve is used for driving the first flow control component to gradually reduce the flow of the first water outlet pipe in the process of sequentially operating from the first position, the second position and the third position, and driving the first flow control component to gradually increase the flow of the first water outlet pipe in the process of reversely operating;

in the process of running the flow regulating valve from the second position to the third position, the driving part is used for driving the second flow control part to gradually increase the flow of the first water outlet pipe, and in the process of running in the reverse direction, the driving part is used for driving the second flow control part to gradually decrease the flow of the first water outlet pipe.

In an embodiment of the present application, in a process of running from a first position to a second position, the second flow control component closes the second water outlet pipe, and in a reverse running process, the second flow control component closes the second water outlet pipe.

In an embodiment of the present application, the first flow control component includes a rotating moving component and a first shielding component, where the first shielding component is disposed on the rotating moving component;

The second flow control component comprises a mounting component and a second shielding component, and the second shielding component is arranged on the mounting component;

the driving component is connected with the rotating moving component and used for driving the rotating moving component to rotate, the rotating moving component rotates relative to the valve casing and simultaneously moves relatively, the first shielding component is arranged in the valve casing and located on one side of the first water outlet pipe, the mounting component is slidably arranged on the rotating moving component, and the second shielding component and the second water outlet pipe are oppositely arranged.

In an embodiment of the present application, the first shielding component is of a sleeve structure, a water flow channel is formed between the first shielding component and the rotating moving component, a water through hole is formed in a side wall of the first shielding component, and water flowing into the water inlet pipe flows into the first water outlet pipe sequentially through the water flow channel and the water through hole;

the second shielding component is of an annular structure and sleeved on the rotary moving component, and the second shielding component and the pipe orifice of the second water outlet pipe are oppositely arranged.

Compared with the prior art, the utility model has the advantages and positive effects that: through additionally disposing the flow regulating valve in gas heater, in the use, adjust the flow of two outlet pipes through the flow regulating valve, and then can control the discharge of bypass pipe, when setting for long time closing water and water again, can reduce the cold water volume that gets into in the heat exchanger and increase the cold water volume of direct flow direction water outlet main pipe department to increase the mixing ratio of cold and hot water, and then make out the fluctuation range of water temperature reduce, and improve user's shower experience.

Drawings

In order to more clearly illustrate the embodiments of the present utility model or the technical solutions of the prior art, the drawings that are needed in the embodiments or the description of the prior art will be briefly described below, it will be obvious that the drawings in the following description are some embodiments of the present utility model, and that other drawings can be obtained according to these drawings without inventive effort to a person skilled in the art.

FIG. 1 is a schematic diagram of an embodiment of a flow control valve according to the present utility model;

FIG. 2 is a schematic view of a partial structure of an embodiment of a flow control valve according to the present utility model;

FIG. 3 is a partial exploded view of an embodiment of a flow control valve of the present utility model;

FIG. 4 is a partial cross-sectional view of an embodiment of a flow control valve of the present utility model;

FIG. 5 is a schematic illustration of one of the valve housings in an embodiment of a flow control valve according to the present utility model;

FIG. 6 is a second schematic view of the valve housing in an embodiment of the flow control valve of the present utility model;

FIG. 7 is a cross-sectional view of a valve housing in an embodiment of a flow control valve of the present utility model;

FIG. 8 is a schematic view of a first shutter member in an embodiment of the flow control valve of the present utility model;

FIG. 9 is a second schematic view of a first shielding member in an embodiment of the flow control valve according to the present utility model;

FIG. 10 is a schematic diagram of a flow control valve of the present utility model in a first position;

FIG. 11 is a schematic diagram of a flow control valve of the present utility model between a first position and a second position;

FIG. 12 is a schematic view of the flow control valve of the present utility model in a second position;

FIG. 13 is a schematic diagram of the flow control valve of the present utility model between a second position and a third position;

FIG. 14 is a schematic view of a flow control valve of the present utility model in a third position;

FIG. 15 is a schematic diagram of a gas water heater according to the present utility model.

Reference numerals:

a valve housing 1;

a water inlet pipe 11, a first water outlet pipe 12 and a second water outlet pipe 13;

the first partition plate 121, the first water outlet 122, the auxiliary water outlet 123, the second partition plate 131, the second water outlet 132, the supporting holes 133 and the groove structure 134;

a valve core assembly 2;

the device comprises a driving part 21, a first flow control part 22, a second flow control part 23, a shaft sleeve 24, a first sealing ring 25, a second sealing ring 26 and a connecting rod 27;

a rotation moving member 221, a first shielding member 222, and a blocking piece 223;

a slide guide portion 2211, a screw portion 2212;

a water port 2221, a water tank 2222, a shielding extension 2223, and a connection hole 2224;

a mounting member 231, a second shielding member 232, an elastic member 233, and a spring seat 234.

Description of the embodiments

For the purpose of making the objects, technical solutions and advantages of the embodiments of the present utility model more apparent, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model, and it is apparent that the described embodiments are some embodiments of the present utility model, but not all embodiments of the present utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

It should be noted that, in the description of the present utility model, terms such as "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate directions or positional relationships based on the directions or positional relationships shown in the drawings, which are merely for convenience of description, and do not indicate or imply that the apparatus or elements must have a specific orientation, be constructed and operated in a specific orientation, and thus are not to be construed as limiting the present utility model. Furthermore, the terms "first," "second," and the like, 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 main energy material, and the high temperature heat generated by combustion of the gas is transferred to cold water flowing through a heat exchanger to achieve the purpose of preparing hot water.

Gas water heaters typically include a housing, and a burner, heat exchanger, fan, and fan housing disposed within the housing.

The gas is conveyed to the burner, and is ignited by the ignition device, so that the burner combusts the conveyed gas, and heat is further generated.

The heat exchanger is internally provided with a heat exchange tube, one end of the heat exchange tube is communicated with a water supply pipeline, and the other end of the heat exchange tube is communicated with a shower head or a tap.

The heat generated by the combustion of the fuel gas by the burner is used for heating the heat exchange tube so as to raise the water temperature in the heat exchange tube 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 flows out of the shower head or the water tap through the hot water valve for users to use.

Meanwhile, in the operation of the gas water heater, the fans are electrified and run simultaneously, and under the action of the fans, the flue gas generated by the burner is discharged outdoors.

In a first embodiment, as shown in fig. 1 and 15, the gas water heater of the present embodiment at least includes: a shell 1000, a burner 2000 and a heat exchanger 3000, wherein a water inlet main pipe 1001 and a water outlet main pipe 1002 are arranged on the shell; the water introduced into the water inlet main pipe 1001 flows into the heat exchanger 3000, and the water flowing in the heat exchanger 3000 is heated by heat generated by combustion of the fuel gas by the burner 2000, and finally, the hot water flowing out of the heat exchanger 3000 is outputted from the water outlet main pipe 1002.

In the use process, when water is turned off for a short time and water is restarted, the water temperature output by the water outlet main pipe 1002 is kept constant. The gas water heater of the embodiment further comprises a flow regulating valve 4000, wherein the flow regulating valve comprises a valve shell 1 and a valve core assembly 2, a water inlet pipe 11, a first water outlet pipe 12 and a second water outlet pipe 13 are arranged on the valve shell, and the valve core assembly is arranged on the valve shell and is used for regulating the opening degrees of the first water outlet pipe and the second water outlet pipe;

the water inlet pipe is connected with the water inlet main pipe, the first water outlet pipe is connected with the inlet of the heat exchanger through a first connecting water pipe 1003, the outlet of the heat exchanger is connected with the water outlet main pipe through a second connecting water pipe 1004, a bypass pipe 4005 is arranged on the second water outlet pipe, and the bypass pipe is connected with the second connecting water pipe.

Specifically, in the actual use process, the gas water heater heats the cold water flowing in through the heat exchanger. In the process of using the gas water heater, when the user has the condition of closing water for a short time and using water again, namely, secondary water, at the moment, the water temperature in the heat exchanger is higher, if large-flow cold water enters into the heat exchanger, the hot water stored in the heat exchanger can be repeatedly heated after the burner is started, and then the hot water with high temperature is output, so that the possibility of scalding the user easily occurs.

For this reason, when the water is turned off for a set period of time and used again, the flow rate distribution of the cold water is adjusted by the flow rate adjusting valve 4000, that is, the water amount of the first water outlet pipe 12 is first reduced and the water amount of the second water outlet pipe 13 is increased. At this time, at the outlet main pipe 1002 of the gas water heater, cold water delivered by the flow regulating valve 4000 through the bypass pipe 4005 is mixed with hot water output by the heat exchanger 3000, and the mixed water temperature can be more close to the set outlet water temperature, so as to improve the shower experience of the user.

Wherein for a reasonable arrangement of the individual components in the housing, the bypass pipe is arranged below the burner. In this way, the bypass pipe can be arranged by fully utilizing the space below the burner, and the bypass pipe is connected between the flow regulating valves 4000 on both sides and the second connecting water pipe, so that the length of the bypass pipe can be effectively saved.

In addition, as for the connection water pipe, the first connection water pipe is disposed at one side of the burner, and the second connection water pipe is disposed at the other side of the burner. The two connecting water pipes are distributed on two sides of the burner, so that the space arrangement water pipes on two sides of the burner can be fully utilized, and the whole structure inside the shell is more compact.

In some embodiments of the present application, a fan 5000 and a booster pump 6000 are further disposed in the housing, the fan and the flow control valve are disposed below the burner, the fan is close to one side wall of the housing, and the flow control valve is close to the other side wall of the housing.

Specifically, in order to reasonably arrange the internal components in the housing, the newly added flow regulating valve is arranged side by side with the blower left and right, and the flow regulating valve is further located above the booster pump 6000, and the water inlet main 1001 is connected with the water inlet pipe 11 of the flow regulating valve 4000 through the booster pump 6000.

In another embodiment of the present application, the heat exchanger comprises a baffle 3001 and heat exchange tubes 3002, the heat exchange tubes being arranged in a detour in the baffle, the heat exchange tubes being connected between the first connection water tube and the second connection water tube.

Specifically, the heat exchanger adopts the independent enclosure to install the heat exchange pipe, so that the heat exchange pipe is not required to be wound and arranged outside the combustion chamber configured at the top of the burner, and the enclosure 3001 is installed at the top of the combustion chamber configured at the top of the burner. The burner burns fuel gas in the combustion chamber, high-temperature flue gas generated by the combustion chamber is output and enters the enclosure, and the part of the heat exchange pipe inserted into the outer enclosure is heated by the high-temperature flue gas so as to heat water flowing through the heat exchange pipe.

For the two connecting water pipes, since the outside of the combustion chamber above the burner is not wound around the pipe, the first connecting water pipe 1003 and the second connecting water pipe 1004 can be installed with sufficient use of the spatial arrangement of both sides of the burner.

Through additionally disposing the flow regulating valve in gas heater, in the use, adjust the flow of two outlet pipes through the flow regulating valve, and then can control the discharge of bypass pipe, when setting for long time closing water and water again, can reduce the cold water volume that gets into in the heat exchanger and increase the cold water volume of direct flow direction water outlet main pipe department to increase the mixing ratio of cold and hot water, and then make out the fluctuation range of water temperature reduce, and improve user's shower experience.

1-9, based on the first embodiment, in the valve core assembly 2 in the present application, in order to accurately adjust the water flow rate of the two water outlet pipes, the valve core assembly 2 includes a driving component 21, a first flow control component 22 and a second flow control component 23, where the first flow control component 22 and the second flow control component 23 are disposed in the valve housing 1, the first flow control component 22 is disposed at the first water outlet pipe 12 and is used for controlling the flow rate of the first water outlet pipe 12, and the second flow control component 23 is disposed at the second water outlet pipe 13 and is used for controlling the flow rate of the second water outlet pipe 13;

wherein the flow regulating valve has a first position, a second position, and a third position;

in the process of sequentially operating the flow regulating valve from the first position, the second position and the third position, the driving part 21 is used for driving the first flow control part 22 to gradually reduce the flow of the first water outlet pipe 12, and in the process of reversely operating, the driving part 21 is used for driving the first flow control part 22 to gradually increase the flow of the first water outlet pipe 12;

in the process of running the flow regulating valve from the second position to the third position, the driving part 21 is used for driving the second flow control part 23 to gradually increase the flow of the first water outlet pipe 12, and in the process of running in the opposite direction, the driving part 21 is used for driving the second flow control part 23 to gradually decrease the flow of the first water outlet pipe 12.

Specifically, the flow regulating valve is assembled by the valve housing 1 and the valve body assembly 2, wherein the valve housing 1 is provided with the water inlet pipe 11, the first water outlet pipe 12 and the second water outlet pipe 13, so that the valve housing 1 is of a three-way structure as a whole.

When the valve is assembled, the driving part 21, the first flow control part 22 and the second flow control part 23 are assembled on the valve casing 1, the driving part 21 can drive the first flow control part 22 and the second flow control part 23 to move inside the valve casing 1, the first flow control part 22 in the moving process can adjust the water outlet flow of the first water outlet pipe 12, and the second flow control part 23 can adjust the water outlet flow of the second water outlet pipe 13.

The flow regulating valve has three specific positions, specifically: in the state that the flow regulating valve is at the first position, the first flow control part 22 controls the first water outlet pipe 12 to be at the maximum opening degree, and the second flow control part 23 closes the second water outlet pipe 13; in the state that the flow regulating valve is at the second position, the second flow control part 23 is in a critical state of switching the second water outlet pipe 13; in the state of the flow regulating valve in the third position, the first flow control member 22 controls the first water outlet pipe 12 to be at the minimum opening degree, and the second flow control member 23 controls the second water outlet pipe 13 to be at the maximum opening degree.

In this embodiment, in the process of operating the flow control valve from the first position to the second position, the second flow control member 23 closes the second water outlet pipe 13, and in the process of operating in the reverse direction, the second flow control member 23 closes the second water outlet pipe 13.

In the practical application process, the flow regulating valve is arranged on the water heater. For the water heater, the water heater generally comprises a water heater main body, wherein the water heater main body is provided with a total water inlet port and a total water outlet port, and is also provided with a heating mechanism and further comprises the flow regulating valve; the water inlet pipe of the flow regulating valve is connected with the total water inlet port, the first water outlet pipe of the flow regulating valve is connected with the inlet of the heating mechanism, and the second water outlet pipe of the flow regulating valve and the outlet of the heating mechanism are respectively connected with the total water outlet port. The main water inlet port is connected with a water supply pipe (such as a tap water pipe) in the user's home, and the main water outlet port is connected with a water terminal (such as a shower or a tap water) through the water pipe in the user's home.

In a specific use process, the water terminal is used for being opened to output hot water outwards, and at the moment, the heating mechanism is started to heat water flowing through.

As shown in fig. 10-14, the dashed arrows represent the direction of water flow.

In the normal heating process, as shown in fig. 10, the flow control valve is at the first position, and at this time, the first flow control member 22 adjusts the first water outlet pipe 12 to be at the maximum opening so as to obtain the maximum water flow; at the same time, the second flow control member 23 is in a position to close the second water outlet pipe 13, i.e. the bypass flow path is in a blocked position.

In the normal water use process, the power of the heating mechanism is reduced due to the influence of external factors, and at this time, the flow of the first water outlet pipe 12 needs to be regulated. At this time, the flow regulating valve will change between the first position and the second position. As shown in fig. 11, the driving component 21 acts to drive the first flow control component 22 and the second flow control component 23 to act, and the first flow control component 22 correspondingly adjusts the opening of the first water outlet pipe 12 to reduce the water flow so as to maintain the constant water temperature output by the water heater; and the second water outlet pipe 13 is not opened for the second flow control member 23. In this process, according to the difference between the water outlet temperature and the set temperature of the water heater, the driving part 21 drives the first flow control part 22 to move in the forward and backward directions, so as to dynamically adjust the water outlet temperature.

In the case that the outlet water temperature of the water heater is continuously higher, the water flow entering the heating mechanism needs to be further reduced, and meanwhile, the bypass water flow is started. At this time, the flow regulating valve will change between the second position and the third position, the driving part 21 acts to drive the first flow control part 22 and the second flow control part 23 to act, the first flow control part 22 will correspondingly reduce the opening of the first water outlet pipe 12 to reduce the water flow, and the first flow control part 22 will correspondingly increase the opening of the first water outlet pipe 12 to increase the water flow. In this way, the water flow ratio of the first water outlet pipe 12 and the second water outlet pipe 13 can be regulated and controlled in the process of changing between the second position and the third position by the water control device, and then the bypass duty ratio is dynamically regulated, so that the water temperature output by the water heater is kept constant.

In addition, when the user normally uses the water heater, when the user uses water twice in a short time, the flow regulating valve changes between the second position and the third position to reduce the flow rate of cold water flowing into the heating mechanism and the mixing proportion of hot water and cold water output by the heating mechanism, so as to improve the lowest temperature of water flowing out of the water heater, reduce the highest temperature of water flowing out of the water heater, further meet the requirement of constant-temperature water outlet of the water heater, and further improve the shower experience of the user.

In an embodiment of the present application, the first flow control member 22 includes a rotation moving member 221 and a first shielding member 222, and the first shielding member 222 is disposed on the rotation moving member 221;

the second flow control member 23 includes a mounting member 231 and a second shielding member 232, the second shielding member 232 being disposed on the mounting member 231;

wherein, the driving part 21 is connected with the rotating moving part 221 and is used for driving the rotating moving part 221 to rotate, the rotating moving part 221 rotates relative to the valve casing 1 and moves relatively, the first shielding part 222 is arranged in the valve casing 1 and is positioned at one side of the first water outlet pipe 12, the mounting part 231 is slidably arranged on the rotating moving part 221, and the second shielding part 232 is arranged opposite to the second water outlet pipe 13.

Specifically, for the first flow control member 22, the rotational movement member 221 is connected to the driving member 21 outside the valve housing 1 to rotate the rotational movement member 221 by the driving member 21. While the rotational movement member 221 is driven by the driving member 21 to rotate with respect to the valve housing 1, the rotational movement member 221 is also movable along its axis with respect to the valve housing 1.

In this way, in the process of adjusting the opening of the first water outlet pipe 12 to control the flow rate of the water flow, the first shielding member 222 is disposed at the pipe orifice side of the first water outlet pipe 12, and the flow rate of the first water outlet pipe 12 is adjusted in a rotating manner. The first shielding component 222 adjusts the flow of the first water outlet pipe 12 in a rotating mode, so that the flow is adjusted more accurately, the requirement of gradual step-by-step adjustment is met, and the requirement of adjusting the water flow entering the heating mechanism under different working conditions of the water heater is met.

In the process of adjusting the opening of the second water outlet pipe 13 to control the water flow, the second shielding component 232 and the pipe orifice of the second water outlet pipe 13 are arranged relatively, and the flow of the second water outlet pipe 13 is adjusted in a relatively moving manner. The second shielding part 232 adjusts the flow of the second water outlet pipe 13 in a relative movement mode, so that the flow is adjusted more efficiently, the water temperature is adjusted rapidly, and the water heater can meet the requirement of constant-temperature water outlet.

In another embodiment of the present application, the first shielding member 222 is of a sleeve structure, a water flow channel is formed between the first shielding member 222 and the rotating moving member 221, and a water port 2221 is provided on a side wall of the first shielding member 222; the water flowing in from the water inlet pipe 11 flows into the first water outlet pipe 12 sequentially through the water flow passage and the water passing port 2221.

Specifically, in order to conveniently adjust the flow rate of the first water outlet pipe 12 by adopting a rotating manner, the first shielding component 222 adopts a sleeve structure, the first shielding component 222 is arranged on the rotating moving component 221 and rotates along with the rotating moving component, the water through hole 2221 can relatively rotate relative to the pipe orifice of the first water outlet pipe 12, and in the rotating process, the overlapping area of the water through hole 2221 and the pipe orifice of the first water outlet pipe 12 is changed, so that the flow rate of the first water outlet pipe 12 is dynamically adjusted.

In an embodiment, the outer surface of the side wall of the first shielding member 222 is further provided with a water tank 2222 communicating with the water port 2221, and the water tank 2222 extends in a direction away from the water port 2221 about the axis of the rotary moving member 221.

Specifically, in the adjusting process of the water flow of the first water outlet pipe 12, the water flow can be adjusted rapidly by adjusting the overlapping area of the water through hole 2221 and the pipe orifice of the first water outlet pipe 12. After the water through hole 2221 is staggered from the nozzle of the first water outlet pipe 12, the water tank 2222 is kept in a communicated state with the nozzle of the first water outlet pipe 12, so that more accurate water flow adjustment can be performed through the water tank 2222.

In one embodiment, the water flow cross-sectional area of the water tank 2222 gradually decreases in a direction away from the water passage port 2221 about the axis of the rotary movement member 221. Specifically, the water flow cross-sectional area of the water tank 2222 is gradually changed, so that the water flow rate of the nozzle of the first water outlet pipe can be more finely and accurately adjusted in the process that the driving component 21 drives the rotating and moving component 221 to rotate in one direction.

The basin 2222 of gradual change structure can be in carrying out high accuracy bypass than the adjustment in-process, can reach more accurate regulation, and then the water temperature of the water heater of accurate regulation to satisfy more accurate temperature and adjust.

In some embodiments, a first partition 121 is disposed in the first water outlet pipe 12, and a first water outlet 122 is disposed on the first partition 121, where the first water outlet 122 is used to communicate with the water port 2221 and the water tank 2222.

Specifically, in order to conveniently control the opening of the first water outlet pipe 12 to accurately adjust the water flow, a first water outlet 122 that is matched with the water inlet 2221 and the water tank 2222 is formed on the first partition 121. In the process that the first shielding component 222 follows the rotation moving component 221 to rotate, the water through hole 2221 and the water tank 2222 can rotate relative to the first water outlet 122 and achieve communication, so that the water outlet flow of the first water outlet pipe 12 can be controlled more accurately.

In some embodiments, the first partition 121 is further provided with an auxiliary water outlet 123, and the water inlet pipe 11 is communicated with the auxiliary water outlet 123.

Specifically, by disposing the auxiliary water outlet 123 on the first partition 121, the auxiliary water outlet 123 is in a normally open state and is always communicated with the water inlet pipe 11, so that the basic water flow requirement of the first water outlet pipe 12 can be ensured through the auxiliary water outlet 123.

The first water outlet 122 may be a bar-shaped hole, and the bar Kong Raozhuai is disposed to extend in the axial direction of the moving member 221.

Specifically, the first water outlet 122 of the strip-shaped hole structure can be better matched with the water through hole 2221 and the water tank 2222 on the first shielding component 222 which rotate, the first shielding component 222 sequentially overlaps and matches the water through hole 2221 and the water tank 2222 along the length direction of the first water outlet 122 in the rotating process, and then the matching degree can be improved, so that the effect of accurately controlling the water flow rate is met.

Because the first partition 121 is provided with the first water outlet 122 and the auxiliary water outlet 123, in order to more accurately control and regulate the water flow of the first water outlet pipe 12, in the process that the flow regulating valve sequentially operates from the first position, the second position and the third position, the first water outlet 122 is sequentially communicated with the water through hole 2221 and the water tank 2222.

In another embodiment, a second partition plate 131 is disposed in the second water outlet pipe 13, and a second water outlet 132 is disposed on the second partition plate 131.

Specifically, for the second water outlet pipe 13, in order to meet the requirement of accurately regulating and controlling the water flow, a second partition plate 131 may be disposed in the second water outlet pipe 13, and a second water outlet 132 is correspondingly disposed on the second partition plate 131, where the second water outlet 132 is disposed opposite to the second flow control member 23. In the process of flow control, the second flow control part 23 moves along with the rotating moving part 221, and the second shielding part 232 in the second flow control part 23 can switch the second water outlet 132 in the moving process, and the accurate adjustment of the water flow of the second water outlet 132 is realized by controlling the distance between the second shielding part 232 and the second water outlet 132.

In an embodiment, the water outlet areas of the auxiliary water outlet 123 and the second water outlet 132 are designed to be the same, so that after the flow regulating valve is at the third position, the first water outlet 122 is blocked by the first blocking member 222, the first water outlet pipe 12 is filled with water through the auxiliary water outlet 123, and meanwhile, the second water outlet 132 in the second water outlet pipe 13 is completely opened. So as to realize that the water outlet flow rates of the auxiliary water outlet 123 and the second water outlet 132 are basically the same, and further meet the condition that the water outlet flow rates of the first water outlet pipe 12 and the second water outlet pipe 13 reach basically the same state.

In this state, the flow rate regulating valve controls the water flow through the small areas of the auxiliary water outlet 123 and the second water outlet 132, so that the total water inflow of the flow rate regulating valve is reduced, the heat release in the heating mechanism in the water heater is slower, the lowest point of the water temperature of the mixed water is larger, and the water temperature approaches to the target water outlet temperature, thereby improving the user experience.

In a certain embodiment, in order to firmly and firmly mount the rotary moving member 221, so as to ensure that the rotary moving member 221 can be stably moved while rotating inside the valve housing 1, the second diaphragm 131 is further provided with a support hole 133, and the other end portion of the rotary moving member 221 is inserted into the support hole 133.

Specifically, during the assembly, the rotational movement member 221 is inserted into the valve housing 1 such that one end portion of the rotational movement member 221 is inserted into the support hole 133, and then the other end portion is connected with the driving member 21 outside the valve housing 1. In this way, both end portions of the rotary movement member 221 can be well supported to ensure stable rotation and movement of the rotary movement member 221 within the valve housing 1.

In some embodiments, to meet the requirement that the flow regulating valve is operated between the first position and the second position, the second water outlet pipe 13 is in a closed state, and when operated between the second position and the third position, the second water outlet pipe 13 is in an open state. The mounting member 231 is also designed to have a sleeve structure, the mounting member 231 is sleeved on the rotating moving member 221, an elastic member 233 is further arranged between the mounting member 231 and the rotating moving member 221, and the elastic member 233 is used for applying an elastic force to the mounting member 231 towards the direction of the second partition plate 131; the other end of the rotation moving member 221 is provided with a blocking piece 223, and the blocking piece 223 is located between the second partition 131 and the mounting member 231.

Specifically, the mounting member 231 is fitted over the rotational movement member 221, and the mounting member 231 is slidable with respect to the rotational movement member 221, and the elastic member 233 functions to apply elastic force to the mounting member 231.

When the flow regulating valve is operated between the first position and the second position, a certain interval is provided between the blocking piece 223 and the mounting part 231, the elastic part 233 applies elastic force to the mounting part 231 so that the mounting part 231 does not move relative to the valve housing 1, and the second water outlet 132 on the second partition plate 131 is closed by the second shielding part 232, at this time, the rotation moving part 221 can rotate and move relative to the mounting part 231.

When the flow regulating valve is operated between the second position and the third position, the blocking piece 223 will abut against the mounting part 231, so that the mounting part 231 moves together with the rotating moving part 221, and at this time, the second blocking part 232 will open the second water outlet 132.

Wherein the elastic member 233 is a spring, and the rotating moving member 221 is provided with a step surface; the inside of the mounting member 231 is provided with a spring seat 234, the spring seat 234 is provided with a through hole (not labeled) through which the rotation moving member 221 passes, the spring is sleeved on the rotation moving member 221, and the spring is located between the spring seat 234 and the step surface.

Specifically, the spring is also sleeved outside the rotary moving member 221 so as to be located between the stepped surface and the spring seat 234, and thus the spring force can be applied to the mounting member 231 by the spring.

In another embodiment, in order to better meet the requirement of water flow rate adjustment, the water inflow of the water inlet pipe 11 can also be adjusted according to needs, the first shielding component 222 is further provided with a shielding extension portion 2223, the shielding extension portion 2223 extends away from the water through hole 2221 along the axial direction of the rotating moving component 221, and the shielding extension portion 2223 is used for partially shielding the pipe orifice of the water inlet pipe 11.

Specifically, in the process that the flow regulating valve sequentially operates from the first position, the second position and the third position, the first shielding member 222 rotates along with the rotation moving member 221, the shielding extension portion 22232223 gradually approaches the pipe orifice of the water inlet pipe 11, and then the shielding extension portion 2223 is utilized to partially shield the pipe orifice of the water inlet pipe 11, so as to reduce the water inlet flow of the water inlet pipe 11.

By reducing the water inflow of the water inlet pipe 11, the effect of reducing the water outflow of the first water outlet pipe 12 can be better satisfied. In addition, when the flow regulating valve is at the third position, the first water outlet pipe 12 is used for discharging water through the auxiliary water outlet 123 with a smaller area, meanwhile, the second water outlet pipe 13 is also used for discharging water through the second water outlet with a smaller area, at this time, the shielding extension part 2223 is used for shielding the water inlet pipe 11 to the greatest extent, so that the water inflow is reduced more effectively, the total water inflow is further reduced, the cold water and the hot water are regulated more effectively, and the water outlet temperature of the user side is ensured to be constant.

In one embodiment, the water through hole 2221 and the shielding extension 2223 are arranged in a staggered manner about the axis of the rotary moving member 221.

Specifically, the water inlet pipe 11 and the first water outlet pipe 12 are disposed at the side of the valve housing 1, the second water outlet pipe 13 is disposed at one end of the valve housing 1, and the driving part 21 is disposed at the other end of the valve housing 1.

The inlet pipe 11 and the first outlet pipe 12 are arranged substantially perpendicular to the axial direction of the rotary moving member 221, and the second outlet pipe 13 is arranged along the axial direction of the rotary moving member 221. The water inlet pipe 11 and the first water outlet pipe 12 are distributed in a back-to-back arrangement manner, so that the water through holes 2221 and the shielding extension parts 2223 are arranged in a staggered manner to meet the requirements of the water inlet pipe 11 and the first water outlet pipe 12 at different positions on water flow adjustment.

In some embodiments of the present application, in order to meet the installation requirement of the rotary moving part 221, the driving part 21 is made to synchronously move in the process of driving the rotary moving part 221 to rotate. A sliding guide portion 2211 and a screw portion 2212 are sequentially provided at one end of the rotational movement member 221 from outside to inside; the slide guide 2211 is connected to the driving member 21, and the slide guide 2211 rotates following the driving member 21 and is slidable with respect to the driving member 21; the valve cartridge assembly 2 further includes a sleeve 24, the sleeve 24 being provided with a threaded hole (not labeled), the rotary moving member 221 passing through the sleeve 24, the threaded portion 2212 being screwed into the threaded hole, the sleeve 24 being provided on the valve housing 1.

Specifically, after the rotary moving member 221 is inserted into the valve housing 1, the end portion located in the valve housing 1 is supported and mounted by the second diaphragm 131. While the end portion located outside the valve housing 1 is mounted on the valve housing 1 through the sleeve 24, and at the same time, the slide guide portion 2211 is connected with the driving member 21. The sleeve 24 is coupled to the rotational movement member 221 such that the rotational movement member 221 is reciprocally moved by the threaded portion 2212 engaged with the threaded hole during rotation.

The expression entity of the sliding guide portion 2211 may be a gear structure disposed on the rotating moving member 221, the guide ribs are distributed on an outer periphery of the rotating moving member 221, the driving member 21 may be a motor, and an inner gear ring structure is disposed on a rotating shaft of the motor, and the gear structure and the gear ring structure cooperate to satisfy a requirement of the rotating moving member 221 for rotation, and a requirement of the rotating moving member 221 for sliding in a rotating process.

In one embodiment of the present application, in order to meet the requirements for sealing installation between the valve housing 1 and the associated assembly, a first sealing ring 25 is further provided between the rotary moving member 221 and the inner wall of the sleeve 24.

Specifically, after the sleeve 24 is sealingly attached to one end portion of the valve housing 1, the rotary motion member 221 is attached to the sleeve 24, and the sleeve 24 and the rotary motion member 221 are sealingly disposed by the first seal ring 25.

Similarly, a second seal ring 26 is provided between the rotary moving member 221 and the inner wall of the mounting member 231.

Specifically, the mounting member 231 is sleeved outside the rotary moving member 221, and the connection portion formed therebetween is sealed by the second seal ring 26, so that water entering the valve housing 1 from the water inlet pipe 11 is not flowed into the second water outlet pipe 13 from a gap formed between the mounting member 231 and the rotary moving member 221 to be outputted, to ensure sealability, and to improve water flow control accuracy of the second water outlet pipe 13.

In one embodiment, the second partition 131 forms a groove structure 134, and a supporting hole 133 and a second water outlet 132 are arranged at the bottom of the groove structure 134; the second shielding member 232 is of an annular structure and is sleeved on the rotary moving member 221, and the second shielding member 232 is used for sealing the outer edge of the groove structure 134.

Specifically, in order to open and close the second water outlet 132 through the second blocking member 232, the second water outlet 132 is disposed in the groove structure 134 formed by the second partition 131, and when the second water outlet 132 is closed, only the edge of the groove structure 134 needs to be blocked and closed, so that the second water outlet 132 can be closed.

Wherein the end surface of the mounting member 231 opposite to the second partition plate 131 is provided with an annular groove (not marked), in which the second shielding member 232 is provided. Specifically, the second shielding member 232 may be a sealing member such as a rubber ring or a silicone ring, and the second shielding member 232 is disposed in an annular groove of the mounting member 231 to complete the mounting, and seals the edge of the groove structure 134 by the second shielding member 232 to close the second water outlet 132.

In addition, the second partition plate 131 is further provided with a first inclined surface extending outward around the groove structure 134, the first inclined surface forming a flare structure, and an end of the mounting member 231 opposite to the second partition plate 131 is provided with a second inclined surface forming a cone structure.

Specifically, the conical head structure formed by the mounting component 231 is matched with the bell mouth structure formed on the second partition plate 131, so that the flow regulation precision of the second water outlet 132 can be regulated more finely, and further, when the water heater performs water outlet temperature control, more fine bypass ratio control is obtained, and the water temperature is kept constant more favorably.

In one embodiment, the side wall of the rotating moving member 221 is provided with a connecting rod 27 extending outwards, the first shielding member 222 is provided with a connecting hole 2224, and the connecting rod 27 is inserted into the connecting hole 2224.

Specifically, the connecting rod 27 is matched with the connecting hole 2224, so that the first flow control component 22 is installed on the rotating moving component 221, on one hand, the installation requirement of the first flow control component 22 is met, and on the other hand, the connecting rod 27 is arranged on the rotating moving component 221 and cannot block the flow of water flow, so that the requirement of smooth water flow conveying is met.

Compared with the prior art, the utility model has the advantages and positive effects that: through setting up the case subassembly in the valve casing, the drive component in the case subassembly can drive first accuse flow part and second accuse flow part at the valve casing internal movement, first accuse flow part can be at the continuous flow of adjusting first outlet pipe of activity in-process, and then satisfy the purpose that water heater heating power changes and need adjust rivers, and the second accuse flow part can be at the in-process of short-time switch water, adjust bypass flow and with the mixed volume of accurate control cold and hot water, and then reach the undulant purpose of reduction water heater play water temperature, through the flow control valve with accurate regulation discharge in order to reduce water heater's play water temperature fluctuation, and then improve user experience nature.

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

Claims (9)

1. A gas water heater, comprising:

the shell is provided with a water inlet main pipe and a water outlet main pipe;

a burner disposed in the housing for combusting a fuel gas;

a heat exchanger arranged above the burner and for water supply flow heat exchange;

the flow regulating valve comprises a valve shell and a valve core assembly, wherein the valve shell is provided with a water inlet pipe, a first water outlet pipe and a second water outlet pipe, and the valve core assembly is arranged on the valve shell and used for regulating the opening degrees of the first water outlet pipe and the second water outlet pipe;

the water inlet pipe is connected with the water inlet main pipe, the first water outlet pipe is connected with the inlet of the heat exchanger through a first connecting water pipe, the outlet of the heat exchanger is connected with the water outlet main pipe through a second connecting water pipe, a bypass pipe is arranged on the second water outlet pipe, and the bypass pipe is connected with the second connecting water pipe;

in addition, the heat exchanger comprises a surrounding baffle and heat exchange tubes, wherein the heat exchange tubes are arranged in the surrounding baffle in a roundabout way, and the heat exchange tubes are connected between the first connecting water tubes and the second connecting water tubes.

2. The gas water heater as recited in claim 1, wherein the bypass pipe is disposed below the burner.

3. A gas water heater according to claim 1, wherein the first connecting water pipe is arranged on one side of the burner and the second connecting water pipe is arranged on the other side of the burner.

4. The gas water heater of claim 1, wherein a fan is further disposed in the housing, the fan and the flow regulating valve being disposed below the burner, the fan being proximate one side wall of the housing, the flow regulating valve being proximate the other side wall of the housing.

5. The gas water heater of any one of claims 1-4, wherein the valve cartridge assembly includes a drive member, a first flow control member and a second flow control member, the first flow control member and the second flow control member being disposed within the valve housing, the first flow control member being disposed at the first outlet pipe for controlling flow rate of the first outlet pipe, the second flow control member being disposed at the second outlet pipe for controlling flow rate of the second outlet pipe.

6. The gas water heater of claim 5, wherein the flow regulating valve has a first position, a second position, and a third position;

the flow regulating valve is used for driving the first flow control component to gradually reduce the flow of the first water outlet pipe in the process of sequentially operating from the first position, the second position and the third position, and driving the first flow control component to gradually increase the flow of the first water outlet pipe in the process of reversely operating;

in the process of running the flow regulating valve from the second position to the third position, the driving part is used for driving the second flow control part to gradually increase the flow of the first water outlet pipe, and in the process of running in the reverse direction, the driving part is used for driving the second flow control part to gradually decrease the flow of the first water outlet pipe.

7. The gas water heater of claim 6, wherein the second flow control member closes the second outlet pipe during operation of the flow control valve from the first position to the second position, and wherein the second flow control member closes the second outlet pipe during reverse operation.

8. The gas water heater of claim 5, wherein the first flow control member comprises a rotational movement member and a first shielding member disposed on the rotational movement member;

The second flow control component comprises a mounting component and a second shielding component, and the second shielding component is arranged on the mounting component;

the driving component is connected with the rotating moving component and used for driving the rotating moving component to rotate, the rotating moving component rotates relative to the valve casing and simultaneously moves relatively, the first shielding component is arranged in the valve casing and located on one side of the first water outlet pipe, the mounting component is slidably arranged on the rotating moving component, and the second shielding component and the second water outlet pipe are oppositely arranged.

9. The gas water heater according to claim 8, wherein the first shielding member has a sleeve structure, a water flow channel is formed between the first shielding member and the rotating moving member, a water through hole is formed in the side wall of the first shielding member, and water flowing into the water inlet pipe flows into the first water outlet pipe sequentially through the water flow channel and the water through hole;

the second shielding component is of an annular structure and sleeved on the rotary moving component, and the second shielding component and the pipe orifice of the second water outlet pipe are oppositely arranged.