CN219656309U - Water inlet and outlet assembly and gas water heater - Google Patents

Abstract

The utility model discloses a water inlet and outlet assembly and a gas water heater. The water inlet and outlet assembly comprises a water pump, a water tank, a control valve, a water inlet pipe, a water outlet pipe, a water return pipe and a bypass pipe, wherein the water pump, the water tank and the water inlet pipe are connected to form a water inlet flow path, the bypass pipe is connected between the control valve and the water tank, the water outlet pipe is connected with the water return pipe, and the control valve is configured to control the water return pipe to be selectively communicated with the bypass pipe. The method can reduce the fluctuation range of the temperature of the secondary boiled water so as to improve the user experience.

Description

Water inlet and outlet assembly and gas water heater

Technical Field

The utility model belongs to the technical field of household appliances, and particularly relates to a water inlet and outlet assembly and 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 use process, when the user turns off water and starts, a certain amount of hot water is stored in the heat exchanger, the ignition is required to be delayed, at the moment, part of cold water enters the heat exchanger and is not fully heated and is output, and then the problem of water generation caused by the secondary boiled water occurs, so that the fluctuation of the temperature of the water outlet is large, and the use experience of the user is influenced.

In view of this, how to design a water heater technology for reducing the fluctuation range of the temperature of the secondary boiled water so as to improve the user experience is a technical problem to be solved by the utility model.

Disclosure of Invention

The utility model provides a water inlet and outlet assembly and a gas water heater, which can reduce the fluctuation range of the temperature of secondary boiled water so as to improve the user experience.

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 water inlet and outlet assembly comprising a water pump, a water tank, a control valve, a water inlet pipe, a water outlet pipe, a water return pipe, and a bypass pipe, the water pump, the water tank, and the water inlet pipe being connected to form a water inlet flow path, the bypass pipe being connected between the control valve and the water tank, the water outlet pipe being connected to the water return pipe, the control valve being configured to control the water return pipe to selectively communicate with the bypass pipe.

Through the water tank of the import configuration at the water pump, the water tank is connected with the inlet tube on the one hand, on the other hand water tank still is connected with the control valve through the bypass pipe, in the use, when the user opens gas heater back under the condition of closing water briefly, through control valve control wet return and bypass pipe intercommunication, and start the water pump so that the inside water of gas heater circulate flow between heat exchanger and water tank, and then utilize heat exchanger's waste heat to heat the water in the water tank, and then the user is when secondary water, gas heater delay ignition in-process, hot water in the water tank will enter into in the heat exchanger, so that the water outlet pipe can export relatively homothermal hot water, in order to alleviate the fluctuation range of secondary boiled water temperature, user experience nature has been improved.

In an embodiment of the present utility model, the water inlet pipe, the water tank and the water pump are sequentially connected along a water flow direction.

In an embodiment of the utility model, a multi-way connecting piece is arranged on the water tank, the multi-way connecting piece is provided with a first interface, a second interface and a third interface, the first interface is connected to the water tank, the second interface is connected with the water inlet pipe, and the third interface is connected with the bypass pipe.

In an embodiment of the utility model, the multi-way connecting piece is further provided with a fourth interface, and a zero cold water pipe is arranged on the fourth interface.

In one embodiment of the utility model, the water tank comprises a tank body and two end covers, wherein the end covers are arranged on corresponding ports of the tank body in a sealing way; the water pump is characterized in that a first connecting pipe and a second connecting pipe are arranged on the barrel body, the first connecting pipe is located above the second connecting pipe, the first connecting pipe is connected with an inlet of the water pump, and the second connecting pipe is connected with the multi-way connecting piece.

In an embodiment of the present utility model, a water blocking cover is disposed at an end portion of the second connecting pipe extending into the barrel, and the water blocking cover is located above an outlet of the second connecting pipe.

In an embodiment of the utility model, the end cover is further provided with a mounting bracket, and the mounting bracket is fixed on the backboard of the housing.

In an embodiment of the present utility model, the water inlet pipe, the water pump and the water tank are sequentially connected along a water flow direction.

In one embodiment of the utility model, a one-way valve is arranged between the control valve and the bypass pipe, and the one-way valve is configured to limit the water in the bypass pipe to flow to the water tank in one direction.

In another aspect, the present utility model also provides a gas water heater, comprising:

a heat exchanger for water supply flow heat exchange;

the water inlet and outlet assembly adopts the water inlet and outlet assembly;

the outlet of the water pump of the water inlet and outlet assembly is connected with the inlet of the heat exchanger, and the outlet of the heat exchanger is connected with the water return pipe of the water inlet and outlet assembly.

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 a gas water heater according to an embodiment of the present utility model;

FIG. 2 is a schematic view of a portion of the structure of FIG. 1 with the housing removed;

FIG. 3 is a second partial schematic view of the housing of FIG. 1 with the outer shell removed;

FIG. 4 is a schematic view of the water inlet and outlet assembly of FIG. 1;

FIG. 5 is a schematic view of the structure of the water tank of FIG. 1;

FIG. 6 is a cross-sectional view of the water tank of FIG. 1;

FIG. 7 is a schematic flow path diagram of another embodiment of the gas water heater of the present utility model.

Reference numerals illustrate:

a housing 1000;

a burner 2000;

a heat exchanger 3000;

a combustion chamber 4000;

a water inlet and outlet assembly 5000;

water pump 5100, water tank 5200, control valve 5300, water inlet pipe 5400, water outlet pipe 5500, water return pipe 5600, bypass pipe 5700, and multi-way connector 5800;

the barrel 5210, the end cap 5220, the first connecting tube 5230, the second connecting tube 5240, the water shield 5250, the mounting bracket 5260 and the check valve 5310;

the water temperature sensor comprises a detection module 6000, a water flow sensor 6100, a first water temperature sensor 6200 and a second water temperature sensor 6300.

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.

In the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

In the present utility model, unless expressly stated or limited otherwise, a first feature "above" or "below" a second feature may include both the first and second features being in direct contact, as well as the first and second features not being in direct contact but being in contact with each other through additional features therebetween. Moreover, a first feature being "above," "over" and "on" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is higher in level than the second feature. The first feature being "under", "below" and "beneath" the second feature includes the first feature being directly under and obliquely below the second feature, or simply means that the first feature is less level than the second feature.

The following disclosure provides many different embodiments, or examples, for implementing different features of the utility model. In order to simplify the present disclosure, components and arrangements of specific examples are described below. They are, of course, merely examples and are not intended to limit the utility model. Furthermore, the present utility model may repeat reference numerals and/or letters in the various examples, which are for the purpose of brevity and clarity, and which do not themselves indicate the relationship between the various embodiments and/or arrangements discussed. In addition, the present utility model provides examples of various specific processes and materials, but one of ordinary skill in the art will recognize the application of other processes and/or the use of other materials.

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.

Heat generated by combustion of the fuel gas during operation of the burner is conducted to the housing in order to reduce heat transfer.

In a first embodiment, as shown in fig. 1-6, as shown in fig. 1 and 2, the present embodiment proposes a gas water heater, at least including: a housing 1000, a burner 2000, a heat exchanger 3000 and a combustion chamber 4000, the heat exchanger 3000 being for water flow heat exchange.

During assembly, the burner 2000 is mounted in the bottom region of the combustion chamber and the heat exchanger 3000 is mounted in the top of the combustion chamber.

In the actual use process, after the fuel gas is delivered to the burner 2000 for ignition and combustion, the high-temperature flue gas generated by the fuel gas rises to heat the water flowing in the top heat exchanger 3000, and the high-temperature flue gas is finally output to the outside of the housing 1000 through the smoke exhaust pipe.

In order to realize the function of zero cold water, the shell 1000 is also provided with a zero cold water pipe 1001;

wherein, in order to solve the problem that the water temperature fluctuation is large caused by clamping water generated by secondary boiled water. A gas water heater comprising:

a water inlet and outlet assembly 5000, the water inlet and outlet assembly 5000 comprising a water pump 5100, a water tank 5200, a control valve 5300, a water inlet pipe 5400, a water outlet pipe 5500, a water return pipe 5600 and a bypass pipe 5700, the water tank 5200 being connected to an inlet of the water pump 5100, the water inlet pipe 5400 being connected to the water tank 5200, the bypass pipe 5700 being connected between the control valve 5300 and the water tank 5200, the water outlet pipe 5500 being connected to the water return pipe 5600, the control valve 5300 being configured to control the water return pipe 5600 to selectively communicate with the bypass pipe 5700;

wherein, heat exchanger 3000 and business turn over water subassembly 5000 set up in shell 1000, and heat exchanger 3000's import is connected to the export of water pump 5100, and heat exchanger 3000's export is connected wet return 5600, and inlet tube 5400 and outlet pipe 5500 stretch out to the outside of shell 1000, the zero-cooling water pipe is connected the water tank.

Specifically, the water inlet pipe 5400 and the water outlet pipe 5500 of the water inlet and outlet assembly 5000 are used for connecting with an external tap water pipe and a water terminal, and the zero-cooling water pipe 1001 is connected with an external pipeline outside the equipment to form a zero-cooling water loop.

In the use process, when a user uses hot water, cold water conveyed by a tap water pipe enters the water tank 5200 through the water inlet pipe 5400 and enters the heat exchanger 3000 through the water pump 5100; the water introduced into the heat exchanger 3000 exchanges heat with high-temperature flue gas generated by combustion of fuel gas by the burner 2000 to form hot water and flows into the control valve 5300 through the water return pipe 5600, and finally, the hot water is output from the water outlet pipe 5500 and flows into a water terminal such as a faucet or a shower.

In the zero-cooling water mode, the water pump 5100 starts the control valve 5300 to be inactive, the water return pipe 5600 is not communicated with the bypass pipe 5700, and as the user terminal is not started, water in the external pipeline enters the water tank through the zero-cooling water pipe under the action of the water pump 5100, and then enters the heat exchanger to heat and recycle the flow to the external pipeline, so that the function of zero-cooling water is achieved.

In the using process, the user can start water again after closing water for a short time, namely, secondary boiled water. Before the user generates the secondary boiled water, a certain amount of hot water is stored in the heat exchanger 3000 and the waste heat of the heat exchanger 3000 can continuously heat the water, so as to fully utilize the waste heat of the heat exchanger 3000 to heat the water and solve the technical problem of water outlet temperature fluctuation caused by the secondary boiled water.

After the user turns off the water in a short time, the control valve 5300 will act to allow the water return pipe 5600 to communicate with the bypass pipe 5700, and further allow the heat exchanger 3000, the water return pipe 5600, the bypass pipe 5700, the water tank 5200 and the water pump 5100 to communicate in sequence to form a closed-loop water circulation flow path, that is, to form an internal circulation inside the device.

After the control valve 5300 communicates the water return pipe 5600 with the bypass pipe 5700, the water pump 5100 is started, water in the water tank 5200 is input into the heat exchanger 3000 under the action of the water pump 5100, meanwhile, water in the heat exchanger 3000 is circulated back into the water tank 5200, and the water in the water tank 5200 is circularly heated by the heat exchanger 3000.

In this way, when the user uses the boiled water for the second time, the flow paths between the return pipe 5600 and the bypass pipe 5700 are blocked by the control valve 5300. The burner 2000 delays ignition, and at the same time, under the action of cold water introduced from the water inlet pipe 5400, hot water in the water tank 5200 flows into the heat exchanger 3000, so that the relatively stable output hot water of the water outlet pipe 5500 is realized, and the fluctuation range of the temperature of the water outlet is reduced.

In addition, after the water in the water tank 5200 is turned off in the use process, the water in the water tank 5200 can perform internal circulation, so that a certain amount of hot water exists in the water tank 5200, the waste heat of the heat exchanger 3000 and the combustion chamber 4000 is fully utilized, and in the zero-cooling water executing mode, water in an external pipeline can enter the water tank 5200 to enable the hot water in the water tank 5200 to participate in a zero-cooling water flow path, so that the starting time of the burner 2000 in the zero-cooling water mode is shortened, and the energy consumption is reduced more advantageously.

Through the water tank of the import configuration at the water pump, the water tank is connected with the inlet tube on the one hand, on the other hand water tank still is connected with the control valve through the bypass pipe, in the use, when the user opens gas heater back under the condition of closing water briefly, through control valve control wet return and bypass pipe intercommunication, and start the water pump so that the inside water of gas heater circulate flow between heat exchanger and water tank, and then utilize heat exchanger's waste heat to heat the water in the water tank, and then the user is when secondary water, gas heater delay ignition in-process, hot water in the water tank will enter into in the heat exchanger, so that the water outlet pipe can export relatively homothermal hot water, in order to alleviate the fluctuation range of secondary boiled water temperature, user experience nature has been improved.

In an embodiment of the present utility model, a multi-way connection member 5800 is disposed on the water tank 5200, the multi-way connection member 5800 has a first interface, a second interface, a third interface and a fourth interface, the first interface is connected to the water tank 5200, the second interface is connected to the water inlet pipe 5400, the third interface is connected to the bypass pipe 5700, and the fourth interface is connected to the zero-cooling water pipe 1001.

Specifically, in order to facilitate connection between the bypass pipe 5700 and the water inlet pipe 5400 and between the water tank 5200, the water tank 5200 is provided with a multi-way connecting piece 5800, and the zero cooling water pipe 1001, the bypass pipe 5700 and the water inlet pipe 5400 are respectively connected to corresponding interfaces of the multi-way connecting piece 5800.

In one embodiment of the present utility model, the water tank 5200 includes a tank 5210 and two end caps 5220, wherein the end caps 5220 are hermetically disposed on corresponding ports of the tank 5210; the barrel 5210 is provided with a first connecting pipe 5230 and a second connecting pipe 5240, the first connecting pipe 5230 is located above the second connecting pipe 5240, the first connecting pipe 5230 is connected with an inlet of the water pump 5100, and the second connecting pipe 5240 is connected with the multi-way connecting piece.

Specifically, the water tank 5200 is provided with a first connection pipe 5230 and a second connection pipe 5240 disposed up and down on a tub 5210 thereof, the first connection pipe 5230 positioned above is used for outputting water in the water tank 5200, and the second connection pipe 5240 positioned below is used for introducing external water into the water tank 5200.

In order to increase the hot water output rate of the water tank 5200, the first connecting pipe 5230 and the second connecting pipe 5240 are arranged in a staggered manner, for example, the first connecting pipe 5230 is located at one end of the tub 5210, and the second connecting pipe 5240 is located at the other end of the tub 5210. Thus, at the time of the secondary boiled water, the water inlet pipe 5400 introduces the cold water into the water tank 5200 via the second connection pipe 5240, and the water heat in the water tank 5200 can be outputted through the first connection pipe 5230 remote from the second connection pipe 5240 to improve the hot water output rate.

In one embodiment, the end of the second connection pipe 5240 extending into the tub 5210 is provided with a water blocking cap 5250, and the water blocking cap 5250 is located above the outlet of the second connection pipe 5240. .

Specifically, in order to further increase the hot water output rate of the water tank 5200, the cold water entering at the initial stage of the secondary boiled water is pulled down to lower the upper hot water output rate in the water tank 5200. The water blocking cover 5250 is disposed on the second connecting pipe 5240, and the water blocking cover 5250 covers the port of the second connecting pipe 5240 located in the barrel 5210, so that cold water input by the second connecting pipe 5240 is blocked and dispersed to the bottom of the water tank 5200 by the water blocking cover 5250, and the influence on hot water at the top of the water tank 5200 is reduced to the greatest extent.

In another embodiment, the end cap 5220 is further provided with a mounting bracket 5260, and the mounting bracket 5260 is fixed to the back plate of the housing 1000.

Specifically, in the process of installing the water tank 5200 to the housing 1000, the water tank 5200 can be directly and fixedly installed on the back plate of the housing 1000 through the installation support 5260, so that the assembly of operators is facilitated.

In another embodiment of the present utility model, a check valve 5310 is disposed between the control valve 5300 and the bypass pipe 5700, the check valve 5310 being configured to restrict water in the bypass pipe 5700 from flowing unidirectionally to the water tank 5200.

Specifically, in the process that the gas water heater is in the self-circulation before the secondary boiled water, since the water inlet pipe 5400 and the bypass pipe 5700 are also communicated with each other through the multi-way connecting piece 5800, in order to avoid that cold water reversely flows through the bypass pipe 5700 due to the water pressure effect of the tap water pipe when the water pump 5100 is not started, a one-way valve 5310 can be arranged between the control valve 5300 and the bypass pipe 5700, and the one-way valve 5310 can limit the water flow direction of the bypass pipe 5700, so that water in the bypass pipe 5700 cannot reversely flow. Further, it is ensured that after the water pump 5100 is started, water in the heat exchanger 3000 flows into the water tank 5200 through the bypass pipe 5700.

In an embodiment of the present utility model, as shown in fig. 7, the water inlet and outlet assembly 5000 further includes a detection module 6000, and the detection module 6000 includes a water flow sensor 6100 disposed between the water pump 5100 and the heat exchanger 3000, and the water flow sensor is configured to trigger the water pump 5100 to adjust the rotation speed.

Specifically, the flow sensor can be according to the running state of zero cold water gas water heater, and when the water supply pressure of outside pipeline reduces in the use, the discharge under the normal heating state reduces, and at this moment, water flow sensor 6100 detects that discharge reduces below the settlement flow value, will trigger the water pump starts to realize assisting the pressure boost through the water pump, and then ensure that the user normally uses the water heater.

In addition, in order to precisely control the water temperature, the sensing module 6000 further includes a temperature sensor including a first water temperature sensor 6200 provided at an inlet of the heat exchanger, a second water temperature sensor 6300 provided at a water inlet front side of the water tank, and a third water temperature sensor 6300 provided at an outlet of the heat exchanger.

In the use process, because the water tank is located between the first water temperature sensor 6200 and the second water temperature sensor 6300, the water inlet temperature of the water tank and the water outlet temperature of the water tank can be obtained by collecting the temperature values of the first water temperature sensor 6200 and the second water temperature sensor 6300, and then the starting and stopping of the water pump can be accurately controlled in the secondary boiled water control process.

With the third water temperature sensor 6300, the temperature of the hot water outputted from the heat exchanger 3000 may be detected, and the gas supply amount of the burner 2000 and the rotation speed of the water pump may be adjusted according to the outputted temperature of the hot water so that the temperature of the water is maintained constant. For specific control methods of the water pump and the burner, reference may be made to conventional techniques, and no limitation and redundant description are made herein.

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 (10)

1. The utility model provides a business turn over water subassembly, its characterized in that, business turn over water subassembly includes water pump, water tank, control valve, inlet tube, outlet pipe, wet return and bypass pipe, the water pump, the water tank with the inlet tube is connected and is formed the inflow flow path, the bypass pipe is connected between the control valve with the water tank, the outlet pipe with wet return connection, the control valve is configured to control the wet return is selectively with the bypass pipe intercommunication.

2. The water inlet and outlet assembly of claim 1, wherein the water inlet tube, the water tank and the water pump are connected in sequence along the flow direction of the water flow.

3. The water inlet and outlet assembly according to claim 1, wherein a multi-way connector is provided on the water tank, the multi-way connector having a first interface, a second interface and a third interface, the first interface being connected to the water tank, the second interface being connected to the inlet pipe, the third interface being connected to the bypass pipe.

4. A water inlet and outlet assembly according to claim 3, wherein the multi-way connection is further provided with a fourth interface, and a zero cold water pipe is provided on the fourth interface.

5. A water inlet and outlet assembly according to claim 3 wherein the water tank comprises a tub and two end caps, the end caps being sealingly disposed on corresponding ports of the tub; the water pump is characterized in that a first connecting pipe and a second connecting pipe are arranged on the barrel body, the first connecting pipe is located above the second connecting pipe, the first connecting pipe is connected with an inlet of the water pump, and the second connecting pipe is connected with the multi-way connecting piece.

6. The water inlet and outlet assembly according to claim 5, wherein an end of the second connection pipe extending into the tub is provided with a water blocking cover located above an outlet of the second connection pipe.

7. The water inlet and outlet assembly of claim 5, wherein the end cap further comprises a mounting bracket.

8. The water inlet and outlet assembly of claim 1, wherein the water inlet tube, the water pump and the water tank are connected in sequence along the flow direction of the water flow.

9. The water inlet and outlet assembly according to any one of claims 1-8, wherein a one-way valve is provided between the control valve and the bypass pipe, the one-way valve being configured to restrict one-way flow of water in the bypass pipe to the tank.

10. A gas water heater, comprising:

a heat exchanger for water supply flow heat exchange;

a water inlet and outlet assembly employing the water inlet and outlet assembly of any one of claims 1-9;

the outlet of the water pump of the water inlet and outlet assembly is connected with the inlet of the heat exchanger, and the outlet of the heat exchanger is connected with the water return pipe of the water inlet and outlet assembly.