CN219453947U - Gas distributor and gas water heater comprising same - Google Patents

Abstract

The utility model provides a gas distributor and a gas water heater comprising the same, and belongs to the technical field of gas equipment. The gas distributor comprises a shell, wherein a plurality of nozzles are arranged on the shell, a gas cavity is formed in the shell, and a first distribution cavity, a second distribution cavity and a third distribution cavity which are mutually independent are arranged in the gas cavity; one or more nozzles are arranged in the first distribution cavity, the second distribution cavity and the third distribution cavity, the number of the nozzles in the second distribution cavity is the largest, a separation part and an opening and closing device are arranged in the second distribution cavity, the separation part separates the second distribution cavity into a second section position cavity and a fourth section position cavity, and an opening communicated with the second section position cavity and the fourth section position cavity is arranged on the separation part; the opening and closing device is used for opening and closing the opening. Through setting up isolation part and switching device in the second distribution chamber, increase the combustion power section of gas distributor, make gas distributor can realize four segmentation gas distribution schemes, realize wide-range burning, strengthen the continuity of combustion power switching.

Description

Gas distributor and gas water heater comprising same

Technical Field

The utility model relates to the technical field of gas equipment, in particular to a gas distributor and a gas water heater comprising the same.

Background

In order to realize wide-range temperature regulation of the gas water heater, a plurality of cavities are required to be designed in the gas distributor, and more combustion power sections are realized through the combination of different cavities. However, the number of the combustion power sections which can be realized by the existing gas distributor is usually only 2-3, and because the number of the combustion power sections is small, the switching span between the combustion power sections is large, so that the combustion power switching continuity of the gas distributor is poor, the temperature control precision of the gas water heater is low, the fluctuation of the outlet water temperature is large, and the user experience is influenced.

Disclosure of Invention

The utility model aims to overcome the defects of fewer combustion power sections and large switching span between the combustion power sections which can be realized by a gas distributor in the prior art, and provides the gas distributor and a gas water heater comprising the same.

The utility model solves the technical problems by the following technical scheme:

the gas distributor comprises a shell, wherein a plurality of nozzles are arranged on the shell, a gas cavity is formed in the shell, and a first distribution cavity, a second distribution cavity and a third distribution cavity which are mutually independent are arranged in the gas cavity; one or more nozzles are arranged in the first distribution cavity, the second distribution cavity and the third distribution cavity, wherein the number of the nozzles in the second distribution cavity is the largest, a separation part is arranged in the second distribution cavity and separates the second distribution cavity into a second section position cavity and a fourth section position cavity, and an opening which is communicated with the second section position cavity and the fourth section position cavity is arranged on the separation part; and an opening and closing device is further arranged in the second distribution cavity and used for opening and closing the opening.

In the scheme, the isolation part and the opening and closing device are arranged in the second distribution cavity with the largest number of nozzles, so that the combustion power section of the gas distributor is further increased, the gas distributor can realize a four-section gas distribution scheme, the continuity of switching and adjusting the combustion power is enhanced on the basis of realizing wide-area combustion, the outlet water temperature change of the gas water heater is smoother, and the use experience of a user is improved.

Preferably, the first distribution chamber is arranged between the second distribution chamber and the third distribution chamber; the number of nozzles in the first distribution chamber is minimal and the number of nozzles in the second stage chamber is less than the number of nozzles in the fourth stage chamber; the second segment bit cavity is adjacent to the first distribution cavity.

In this scheme, through above-mentioned structural style, make the inner structure of gas cavity reasonable, conveniently realize four segmentation gas distribution, and be convenient for the casing be connected with the gas connecting pipe, the difficult problem that appears the installation conflict.

Preferably, the gas distributor further comprises a gas connecting pipe, one end of the gas connecting pipe is connected with the shell, and a first channel, a second channel and a third channel which are mutually independent are arranged in the gas connecting pipe; wherein the first channel communicates with the first distribution chamber, the second channel communicates with the second distribution chamber, and the third channel communicates with the third distribution chamber.

In the scheme, one gas connecting pipe is connected with the shell, so that the structure of the gas distributor is more compact, and the gas distributor does not occupy excessive installation space; meanwhile, the first channel, the second channel and the third channel which are mutually independent are connected with the first distribution cavity, the second distribution cavity and the third distribution cavity which are mutually independent in one-to-one correspondence, so that when the combustion power section is switched, fuel gas can enter the corresponding distribution cavities through the fuel gas connecting pipe and cannot flow into other distribution cavities, and the realization of the sectional fuel gas distribution scheme is ensured.

Preferably, the gas distributor further comprises a control valve module, and the control valve module is connected with one end, far away from the shell, of the gas connecting pipe; the control valve module comprises an air inlet, three first air outlets, a second air outlet and a third air outlet which can be opened and closed relatively and independently; the first air outlet is communicated with the first channel, the second air outlet is communicated with the second channel, and the third air outlet is communicated with the third channel.

In the scheme, the first air outlet, the second air outlet and the third air outlet are opened and closed relatively independently, so that the first channel, the second channel and the third channel can input fuel gas relatively independently, and then enter different distribution cavities, and the combination mode of inputting fuel gas into different distribution cavities can be realized by combining the opening and closing of the opening and closing devices in the second distribution cavities through different opening and closing combinations of the first air outlet, the second air outlet and the third air outlet, so that the combination mode of spraying fuel gas from a plurality of nozzles with different numbers can be realized, the fuel gas distributor can realize wide-area combustion, and the combustion power section of the fuel gas distributor is increased.

Preferably, the control valve module comprises a body, a first electromagnetic valve, a second electromagnetic valve and a third electromagnetic valve; the air inlet is arranged in the body, and the first electromagnetic valve, the second electromagnetic valve and the third electromagnetic valve are respectively arranged between the body and the first air outlet, between the second air outlet and between the third air outlet.

In the scheme, the structure is adopted, and different electromagnetic valves are arranged between the air inlet and different air outlets to realize relatively independent opening or closing of the different air outlets.

Preferably, the body includes a main solenoid valve for controlling opening and closing of the air inlet.

In the scheme, through the structural form, the main electromagnetic valve can control the on-off of the fuel gas of the whole fuel gas distributor.

Preferably, the body further comprises a proportional valve for regulating the flow rate of the fuel gas flowing into the air inlet.

In this scheme, the flow size of gas can be adjusted to the proportional valve, and the combination in different distribution chamber can further increase the continuity that gas distributor combustion power switched and adjusted in addition, and then more linearly adjusts gas heater's temperature.

Preferably, the opening and closing device is a fourth electromagnetic valve, the fourth electromagnetic valve comprises a valve body and a valve core, the valve core corresponds to the position of the opening, and the valve body is used for controlling the valve core to stretch and retract so as to open and close the opening.

In the scheme, the valve core of the fourth electromagnetic valve can stretch out and draw back, the valve core corresponds to the position of the opening, when the valve core stretches out, the opening can be plugged, and the second section of position cavity and the fourth section of position cavity are separated; when the valve core is retracted, the opening is opened, and the second section position cavity is communicated with the fourth section position cavity.

Preferably, the side wall of the housing is provided with a mounting hole, the mounting hole is aligned with the position of the opening, the valve body is positioned outside the mounting hole, and the valve core extends into the housing from the mounting hole.

In the scheme, the valve body of the fourth electromagnetic valve is positioned outside the shell of the gas distributor by adopting the structural form, so that the installation and replacement of the fourth electromagnetic valve are convenient.

A gas water heater comprising a gas distributor as described above.

The utility model has the positive progress effects that:

through setting up isolation part and switching device in the biggest second distribution chamber of nozzle quantity, further increase the combustion power section of gas distributor, make gas distributor can realize four segmentation gas distribution schemes, on the basis of realizing wide-range burning, the continuity of reinforcing combustion power switching adjustment makes the play water temperature variation of adaptation gas heater smoother, improves user's use experience.

Drawings

Fig. 1 is a schematic perspective view of a gas distributor according to a preferred embodiment of the present utility model.

Fig. 2 is an exploded view of a fuel gas dispenser according to a preferred embodiment of the present utility model.

FIG. 3 is a schematic view showing the internal cross-sectional structure of a gas distributor according to a preferred embodiment of the present utility model.

Reference numerals illustrate:

housing 100

Cover body 101

Base plate 102

Sealing gasket 103

Mounting hole 104

Nozzle 105

Gas cavity 200

Isolation portion 201

Opening 202

First distribution chamber 210

Second distribution chamber 220

Second segment bit cavity 221

Fourth segment bit cavity 222

Third distribution chamber 230

Gas connecting pipe 300

First channel 310

Second channel 320

Third channel 330

Control valve module 400

Air inlet 401

First air outlet 402

Second air outlet 403

Third air outlet 404

First solenoid valve 410

Second electromagnetic valve 420

Third solenoid valve 430

Fourth solenoid valve 440

Valve body 441

Valve core 442

Body 450

Main electromagnetic valve 451

Proportional valve 452

Detailed Description

The present utility model will now be described more fully hereinafter with reference to the accompanying drawings, in which preferred embodiments are shown.

The embodiment provides a gas water heater, which comprises a gas distributor.

As shown in fig. 1 to 3, the gas distributor comprises a housing 100, wherein the housing 100 is formed by sequentially connecting a cover body 101, a sealing gasket 103 and a bottom plate 102; the shell 100 is provided with a plurality of nozzles 105, a gas cavity 200 is formed in the shell 100, and a first distribution cavity 210, a second distribution cavity 220 and a third distribution cavity 230 which are mutually independent are arranged in the gas cavity 200; wherein, one or more nozzles 105 are arranged in the first distribution chamber 210, the second distribution chamber 220 and the third distribution chamber 230, wherein the number of the nozzles 105 in the second distribution chamber 220 is the largest, a partition part 201 is arranged in the second distribution chamber 220, the partition part 201 partitions the second distribution chamber 220 into a second section position chamber 221 and a fourth section position chamber 222, and an opening 202 which is communicated with the second section position chamber 221 and the fourth section position chamber 222 is arranged on the partition part 201; the second distribution chamber 220 is further provided with an opening/closing device for opening/closing the opening 202.

By arranging the isolation part 201 and the opening and closing device in the second distribution cavity 220 with the largest number of the nozzles 105, the combustion power section of the gas distributor is further increased, so that the gas distributor can realize a four-section gas distribution scheme, the continuity of switching and adjusting the combustion power is enhanced on the basis of realizing wide-area combustion, the outlet water temperature change of the gas water heater is smoother, and the use experience of users is improved.

In the present embodiment, the first distribution chamber 210 is disposed between the second distribution chamber 220 and the third distribution chamber 230; the number of nozzles 105 in the first distribution chamber 210 is minimal and the number of nozzles 105 in the second segment bit chamber 221 is less than the number of nozzles 105 in the fourth segment bit chamber 222; the second segment bit cavity 221 is adjacent to the first distribution cavity 210. Therefore, the internal structure of the gas cavity 200 is reasonable, the distribution of the four-section combustion flame is conveniently realized, the shell 100 is conveniently connected with the gas connecting pipe 300, and the problem of installation conflict is not easy to occur.

Specifically, the opening and closing device in the present embodiment is a fourth solenoid valve 440, the fourth solenoid valve 440 includes a valve body 441 and a valve core 442, the valve core 442 corresponds to a position of the opening 202, and the valve body 441 is used to control the valve core 442 to expand and contract to open and close the opening 202: when the valve core 442 extends, the opening 202 can be blocked, and the second section position cavity 221 and the fourth section position cavity 222 are separated; when the valve spool 442 is retracted, the opening 202 is opened and the second segment cavity 221 and the fourth segment cavity 222 communicate. Further, the side wall of the housing 100 has a mounting hole 104, the mounting hole 104 is aligned with the position of the opening 202, the valve body 441 is located outside the mounting hole 104, and the valve core 442 extends into the housing 100 from the mounting hole 104. The valve body 441 is located outside the housing 100 of the gas distributor, facilitating the installation and replacement of the fourth solenoid valve 440. In other alternative embodiments, the opening and closing device may be any device suitable for installation within a gas dispenser that is capable of opening and closing the opening 202.

Further, the gas distributor further includes a gas connection pipe 300 and a control valve module 400:

one end of the gas connecting pipe 300 is connected with the shell 100, and a first channel 310, a second channel 320 and a third channel 330 which are mutually independent are arranged in the gas connecting pipe 300; wherein the first channel 310 communicates with the first distribution chamber 210, the second channel 320 communicates with the second distribution chamber 220, and the third channel 330 communicates with the third distribution chamber 230;

one end of the gas connecting pipe 300, which is far away from the shell 100, is connected with a control valve module 400, and the control valve module 400 comprises an air inlet 401, and three first air outlets 402, second air outlets 403 and third air outlets 404 which can be opened and closed relatively independently; wherein the first air outlet 402 is in communication with the first channel 310, the second air outlet 403 is in communication with the second channel 320, and the third air outlet 404 is in communication with the third channel 330.

Therefore, by opening and closing different air outlets, the fuel gas can enter corresponding distribution cavities through corresponding channels in the fuel gas connecting pipe 300 and cannot flow into other distribution cavities, so that the sectional fuel gas distribution scheme can be realized; through the different opening and closing combinations of the first air outlet 402, the second air outlet 403 and the third air outlet 404, and the opening and closing of the opening and closing device in the second distribution cavity 220, a plurality of different combination modes of gas input by the distribution cavity can be combined, namely, a plurality of different combination modes of gas sprayed by the nozzles 105 can be combined, so that the gas distributor can realize wide-area combustion, and the combustion power section of the gas distributor is increased.

In this embodiment, the first air outlet 402, the second air outlet 403 and the third air outlet 404 are opened and closed relatively independently by electromagnetic valves; specifically, the control valve module 400 includes a body 450, a first solenoid valve 410, a second solenoid valve 420, and a third solenoid valve 430; the air inlet 401 is disposed in the body 450, and the first electromagnetic valve 410, the second electromagnetic valve 420 and the third electromagnetic valve 430 are respectively disposed between the body 450 and the first air outlet 402, the second air outlet 403 and the third air outlet 404.

In addition, the body 450 further includes a main solenoid valve 451 and a proportional valve 452.

The main electromagnetic valve 451 is used for controlling the opening and closing of the air inlet 401, namely controlling the on-off of the fuel gas of the whole fuel gas distributor; the proportional valve 452 is used for adjusting the flow of the gas flowing into the gas inlet 401, and the combination of the gas flowing into different distribution cavities can further increase the continuity of the switching adjustment of the combustion power of the gas distributor, so that the water temperature of the gas water heater can be adjusted more linearly.

Specifically, in this embodiment, 15 nozzles 105 are disposed on the housing 100, the number of nozzles 105 in the first distribution chamber 210 is 2, the number of nozzles 105 in the second distribution chamber 220 is 9, and the number of nozzles 105 in the third distribution chamber 230 is 4; the number of nozzles 105 in the second segment cavity 221 and the fourth segment cavity 222, into which the second distribution cavity 220 is partitioned by the partition 201, is 2 and 7, respectively. The four-segment gas distribution operation is as follows:

combustion power first section: the main solenoid valve 451 and the first solenoid valve 410 are opened, and the second solenoid valve 420, the third solenoid valve 430 and the fourth solenoid valve 440 are closed, and only 2 nozzles 105 in the first distribution chamber 210 spray fuel gas for combustion;

combustion power second stage: the main solenoid valve 451, the first solenoid valve 410 and the second solenoid valve 420 are opened, the third solenoid valve 430 and the fourth solenoid valve 440 are closed, and at this time, the fuel gas is sprayed from the 4 nozzles 105 in the first distribution chamber 210 and the second section position chamber 221 for combustion;

third stage of combustion power: the main solenoid valve 451, the first solenoid valve 410, the second solenoid valve 420 and the third solenoid valve 430 are opened, the fourth solenoid valve 440 is closed, and at this time, 8 nozzles 105 in the first distribution chamber 210, the second section chamber 221 and the third distribution chamber 230 spray fuel gas for combustion;

combustion power fourth stage: the main solenoid valve 451, the first solenoid valve 410, the second solenoid valve 420, the third solenoid valve 430 and the fourth solenoid valve 440 are all opened, and at this time, the nozzles 105 in the fourth-stage chamber 222 are turned on with fuel gas, and 15 nozzles 105 in the first distribution chamber 210, the second distribution chamber 220 and the third distribution chamber 230 spray fuel gas for combustion.

In addition, through the regulation of the gas flow by the proportional valve 452, the combustion power intervals of each combustion power section can be overlapped, the continuity of power change in the switching process of different combustion power sections is ensured, and power break points are avoided, so that the fluctuation of temperature control occurs.

In other alternative embodiments, the positional relationship of the first distribution chamber 210, the second distribution chamber 220, and the third distribution chamber 230 may be suitably adjusted according to the actual structural form of the gas distributor; the number of nozzles 105 contained in the different distribution chambers may also be varied accordingly, depending on the actual combustion power requirements.

In the description of the present utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model.

While specific embodiments of the utility model have been described above, it will be appreciated by those skilled in the art that this is by way of example only, and the scope of the utility model is defined by the appended claims. Various changes and modifications to these embodiments may be made by those skilled in the art without departing from the principles and spirit of the utility model, but such changes and modifications fall within the scope of the utility model.

Claims (10)

1. The gas distributor comprises a shell, wherein a plurality of nozzles are arranged on the shell, and a gas cavity is formed in the shell;

one or more nozzles are arranged in the first distribution cavity, the second distribution cavity and the third distribution cavity, wherein the number of the nozzles in the second distribution cavity is the largest, a separation part is arranged in the second distribution cavity and separates the second distribution cavity into a second section position cavity and a fourth section position cavity, and an opening which is communicated with the second section position cavity and the fourth section position cavity is arranged on the separation part;

and an opening and closing device is further arranged in the second distribution cavity and used for opening and closing the opening.

2. The gas distributor according to claim 1, wherein said first distribution chamber is disposed between said second distribution chamber and said third distribution chamber;

the number of nozzles in the first distribution chamber is minimal and the number of nozzles in the second stage chamber is less than the number of nozzles in the fourth stage chamber;

the second segment bit cavity is adjacent to the first distribution cavity.

3. The gas distributor according to claim 1, further comprising a gas connecting pipe, wherein one end of the gas connecting pipe is connected with the housing, and a first channel, a second channel and a third channel which are independent from each other are arranged in the gas connecting pipe;

wherein the first channel communicates with the first distribution chamber, the second channel communicates with the second distribution chamber, and the third channel communicates with the third distribution chamber.

4. The gas dispenser of claim 3, further comprising a control valve module connected to an end of the gas connection tube remote from the housing;

the control valve module comprises an air inlet, three first air outlets, a second air outlet and a third air outlet which can be opened and closed relatively and independently;

the first air outlet is communicated with the first channel, the second air outlet is communicated with the second channel, and the third air outlet is communicated with the third channel.

5. The gas dispenser of claim 4, wherein the control valve module comprises a body, a first solenoid valve, a second solenoid valve, and a third solenoid valve;

the air inlet is arranged in the body, and the first electromagnetic valve, the second electromagnetic valve and the third electromagnetic valve are respectively arranged between the body and the first air outlet, between the second air outlet and between the third air outlet.

6. The gas dispenser of claim 5, wherein said body includes a main solenoid valve for controlling opening and closing of said gas inlet.

7. The gas dispenser of claim 5, wherein said body further comprises a proportional valve for regulating the flow of gas into said inlet.

8. The gas dispenser according to claim 1, wherein the opening and closing device is a fourth solenoid valve including a valve body and a valve body, the valve body being adapted to control expansion and contraction of the valve body to open and close the opening, the valve body corresponding to a position of the opening.

9. The gas dispenser of claim 8, wherein said housing has a mounting hole in a side wall thereof, said mounting hole being aligned with a location of said opening, said valve body being located outside said mounting hole, said valve cartridge extending from said mounting hole into said housing.

10. A gas water heater comprising a gas distributor as claimed in any one of claims 1 to 9.