CN112629041B - Gas distributor and gas water heater comprising same - Google Patents
Gas distributor and gas water heater comprising same Download PDFInfo
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- CN112629041B CN112629041B CN202110035619.6A CN202110035619A CN112629041B CN 112629041 B CN112629041 B CN 112629041B CN 202110035619 A CN202110035619 A CN 202110035619A CN 112629041 B CN112629041 B CN 112629041B
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- gas
- valve plug
- valve
- air inlet
- gas distributor
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H9/00—Details
- F24H9/20—Arrangement or mounting of control or safety devices
- F24H9/2007—Arrangement or mounting of control or safety devices for water heaters
- F24H9/2035—Arrangement or mounting of control or safety devices for water heaters using fluid fuel
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Feeding And Controlling Fuel (AREA)
Abstract
The invention discloses a gas distributor and a gas water heater comprising the same. This gas distributor includes: a housing; a plurality of cavities are arranged in the shell, and each cavity is correspondingly provided with an air inlet and a plurality of gas nozzles which are communicated with the cavity; every be equipped with disk seat, elastic component and valve plug in the air inlet, the valve plug is located the fluid outflow side of disk seat, the elastic component is making the valve plug butt the bias voltage in the direction of disk seat the valve plug, every the elastic coefficient of the interior elastic component of air inlet is all inequality. This gas distributor is equipped with the elastic component of different elastic coefficient in the cavity of difference to different air inlets open according to different atmospheric pressure (or be called "wind pressure"), like this, need not set up the solenoid valve, and different segmentation can be selected for use automatically according to atmospheric pressure to the gas distributor, has simplified control flow and gas distributor's overall structure greatly.
Description
Technical Field
The invention relates to the field of water heaters, in particular to a gas distributor and a gas water heater comprising the same.
Background
At present, a gas distribution device of a gas water heater mostly adopts a sectional type structure, air inlets of different sections are controlled by electromagnetic valves, the electromagnetic valves are controlled by a master control unit of the gas water heater, the master control unit controls the opening and closing of the electromagnetic valves according to the water inlet temperature and the water outlet temperature of the gas water heater, the electromagnetic valves are required to be arranged on the gas distribution device, and the connection between the master control unit and the electromagnetic valves and the arrangement of control programs and the like are required to be arranged in the gas water heater, which is referred to Chinese patent publication CN 202361649U.
These lead to the inside structure of gas heater comparatively complicated, and because the solenoid valve is closed towards the direction that the gas flows out, can lead to the valve plug of solenoid valve to pull open difficultly because of the pressure difference.
Disclosure of Invention
The invention aims to overcome the defect that a structure is too complex due to the fact that a gas distribution device in the prior art adopts an electromagnetic valve, and provides a simplified gas distributor and a gas water heater comprising the same.
The invention solves the technical problems through the following technical scheme:
a gas dispenser, comprising: a housing;
a plurality of cavities are arranged in the shell, and each cavity is correspondingly provided with an air inlet and a plurality of gas nozzles which are communicated with the cavity;
every be equipped with disk seat, elastic component and valve plug in the air inlet, the valve plug is located the fluid outflow side of disk seat, the elastic component is making the valve plug butt the bias voltage in the direction of disk seat the valve plug, every the elastic coefficient of the interior elastic component of air inlet is all inequality.
In this scheme, this gas distributor is equipped with the elastic component of different elastic coefficient in the cavity of difference to different air inlets open according to different atmospheric pressure (or be called "wind pressure"), like this, need not set up the solenoid valve, and gas distributor can be according to atmospheric pressure and different segmentation of automatic selection for use, has simplified control flow and gas distributor's overall structure greatly.
Preferably, each of said chambers has a different number of gas nozzles.
Preferably, the valve seat has an annular inclined surface that is expanded radially outward toward the fluid outflow side, and the valve plug abuts against an end of the inclined surface of the valve seat where the fluid flows in.
In this scheme, through setting up the inclined surface, realize realizing the regulation of valve opening according to the removal of valve plug, like this, atmospheric pressure is big more, and the valve plug is big more towards the removal stroke of fluid outflow side for valve opening is big more, through simple structure, has realized the distribution of gas and has adjusted.
Preferably, the valve seat has an abutment surface extending perpendicularly to the direction of movement of the valve plug, the abutment surface being provided with a sealing ring.
Preferably, each air inlet is further internally provided with a valve rod and a support, the valve rod is connected to the fluid outflow side of the valve plug, the support is fixed relative to the side wall of the air inlet, the support is provided with a cylinder part, and the valve rod is movably inserted into the cylinder part.
Preferably, the casing includes a box portion and a cover portion covering an opening of the box portion, a plurality of partition portions are provided in the box portion, and the partition portions partition the casing into a plurality of chambers.
Preferably, the gas inlet and the gas burner are provided on a surface of the box portion opposite to the opening.
Preferably, the elastic member is a spring.
A gas distributor comprising a housing;
a first cavity and a second cavity are arranged in the shell, and a first air inlet, a second air inlet, a plurality of first gas nozzles and a plurality of second gas nozzles are arranged on the shell;
the first air inlet and the first gas nozzle are both communicated with the first chamber, and the second air inlet and the second gas nozzle are both communicated with the second chamber;
a first valve seat, a first elastic piece and a first valve plug are arranged in the first air inlet, the first valve plug is arranged on the fluid outflow side of the first valve seat, and the first elastic piece biases the first valve plug in the direction of enabling the first valve plug to abut against the first valve seat;
a second valve seat, a second elastic member and a second valve plug are arranged in the second air inlet, the second valve plug is arranged on the fluid outflow side of the second valve seat, and the second elastic member biases the second valve plug in the direction of enabling the second valve plug to abut against the second valve seat;
the elastic coefficient of the first elastic piece is smaller than that of the second elastic piece, and the number of the first gas nozzles is smaller than that of the second gas nozzles.
A gas water heater comprising a gas water heater as described above.
Preferably, the gas water heater further comprises a gas inlet channel, a fan is arranged in the gas inlet channel, and the rotating speed of the fan is adjusted according to the water temperature in the gas water heater;
the outlet end of the fuel gas inlet channel is communicated with the first air inlet and the second air inlet.
A gas water heater comprising a gas distributor as described above;
the gas water heater also comprises a gas inlet channel, a fan is arranged in the gas inlet channel, and the rotating speed of the fan is adjusted according to the water temperature in the gas water heater;
the outlet end of the fuel gas inlet channel is communicated with all the air inlets.
In this scheme, the fan is adjusted according to the temperature in the gas heater to make the atmospheric pressure of gas distributor's air inlet change according to the temperature, thereby make the switching of air inlet control according to the temperature.
The positive progress effects of the invention are as follows: this gas distributor is equipped with the elastic component of different elastic coefficient in the cavity of difference to different air inlets open according to different atmospheric pressure (or be called "wind pressure"), like this, need not set up the solenoid valve, and different segmentation can be selected for use automatically according to atmospheric pressure to the gas distributor, has simplified control flow and gas distributor's overall structure greatly.
Drawings
Fig. 1 is a schematic structural view of a gas water heater according to an embodiment of the present invention.
Fig. 2 is a perspective view illustrating a gas distributor according to an embodiment of the present invention.
Fig. 3 is a rear view schematically illustrating a structure of a gas distributor according to an embodiment of the present invention.
Fig. 4 is a schematic sectional structure view taken along line a-a of fig. 2.
Fig. 5 is a side view schematic diagram of a gas distributor according to an embodiment of the present invention.
Fig. 6 is a schematic sectional structure view taken along line B-B of fig. 5.
Description of reference numerals:
Casing 101
First valve seat 114
First elastic member 115
Inclined surface 1161
Abutment surface 1162
Valve stem 117
Support 118
Barrel portion 119
Second air inlet 132
Second valve seat 134
Second elastic member 135
Second valve plug 136
Water inlet joint 202
Water outlet joint 203
Combustor can 208
Gas collecting channel assembly 211
Detailed Description
The present invention is further illustrated by way of example and not by way of limitation in the scope of the embodiments described below in conjunction with the accompanying drawings.
As shown in fig. 1, the gas water heater 200 includes: the gas-water separator comprises an air inlet connector 201, an air inlet connector 202, an air outlet connector 203, a proportional valve assembly 204, a water quantity valve assembly 205, a fan 160 assembly 206, a gas distributor 100, a combustion chamber box 208, an electric controller assembly 209, a heat exchanger assembly 210 and a gas collecting hood assembly 211.
The proportional valve assembly 204 is used for controlling the on-off of gas and the magnitude of gas flow, the water quantity valve assembly 205 is used for detecting a water flow signal and transmitting the water flow signal to the electric controller assembly 209, the fan 160 assembly 206 is used for controlling the air intake, the gas distributor 100 is used for distributing and adjusting the gas flow, the electric controller assembly 209 is used for detecting a signal and outputting a control signal to control the whole machine, the heat exchanger assembly 210 is used for absorbing the heat of the flue gas to heat cold water in the flue gas into hot water, and the gas collecting hood assembly 211 is used for discharging the flue gas.
Cold water enters from the water inlet connection 202 and flows through the heat exchanger assembly 210 and exits from the water outlet connection 203. The gas enters from the gas inlet connector 201, passes through the proportional valve assembly 204, enters the gas distribution chamber, is sprayed into the combustion chamber box 208 through the nozzle 123 of the gas distribution chamber, meanwhile, the fan 160 assembly 206 conveys air to the interior of the combustion chamber box 208, the gas and the air are mixed and combusted in the interior of the combustion chamber box 208, the generated flue gas flows upwards and flows through the heat exchanger assembly 210, and finally the flue gas flows out from the gas collecting hood assembly 211.
As shown in fig. 2-6, the gas distributor 100 includes a housing 101.
The housing 101 is provided with a first chamber 111 and a second chamber 131, and the housing 101 is provided with a first air inlet 112, a second air inlet 132, a plurality of first gas nozzles 113 and a plurality of second gas nozzles 133.
The first intake port 112 and the first gas burner 113 are both in communication with the first chamber 111, and the second intake port 132 and the second gas burner 133 are both in communication with the second chamber 131.
A first valve seat 114, a first elastic member 115, and a first valve plug 116 are disposed in the first intake port 112, the first valve plug 116 is disposed on the fluid outflow side of the first valve seat 114, and the first elastic member 115 biases the first valve plug 116 in a direction such that the first valve plug 116 abuts the first valve seat 114.
A second valve seat 134, a second elastic member 135, and a second valve plug 136 are provided in the second intake port 132, the second valve plug 136 is provided on the fluid outflow side of the second valve seat 134, and the second elastic member 135 biases the second valve plug 136 in a direction such that the second valve plug 136 abuts against the second valve seat 134.
The elastic coefficient of the first elastic member 115 is smaller than that of the second elastic member 135, and the number of the first gas nozzles 113 is smaller than that of the second gas nozzles 133. In this embodiment, the first chamber 111 is provided with 4 nozzles, and the second chamber 131 is provided with 7 nozzles, from which the gas is ejected. Of course, the number of nozzles corresponding to the chambers may be adjusted as desired. The nozzle corresponding to the first chamber 111 is a first section of the gas distributor 100 and the nozzle corresponding to the second chamber 131 is a second section of the gas distributor 100.
The gas distributor 100 is provided with elastic members with different elastic coefficients in different chambers, so that different gas inlets are opened according to different gas pressures (or called as 'wind pressures'), and thus, the gas distributor 100 can automatically select different sections according to the gas pressures without arranging an electromagnetic valve, thereby greatly simplifying the control flow and the overall structure of the gas distributor 100.
Although the present embodiment illustrates only a case where two chambers are included in the housing 101, the present invention is not limited thereto. When the housing 101 includes three or more chambers, the same effect can be achieved by making the elastic coefficients of the elastic members of the intake ports in the respective chambers different, or the same effect can be achieved by making the elastic coefficients of the elastic members of the intake ports in at least two chambers different.
The first valve seat 114 has an annular inclined surface 1161, the inclined surface 1161 is expanded radially outward toward the fluid outflow side, and the first valve plug 116 abuts against the end of the inclined surface 1161 of the first valve seat 114, into which fluid flows. By providing the inclined surface 1161, the adjustment of the valve opening degree according to the movement of the valve plug is realized, and thus, the larger the air pressure is, the larger the movement stroke of the valve plug toward the fluid outflow side is, so that the larger the valve opening degree is, and the distribution adjustment of the gas is realized by a simple structure.
The first valve seat 114 has an abutment surface 1162 extending perpendicular to the direction of movement of the first valve plug 116, and a sealing ring (not shown) is provided on the abutment surface 1162.
The first inlet 112 is further provided with a valve rod 117 and a bracket 118, the valve rod 117 is connected to the fluid outflow side of the first valve plug 116, the bracket 118 is fixed relative to the side wall of the inlet, the bracket 118 is provided with a cylinder 119, and the valve rod 117 is movably inserted in the cylinder 119. So that the valve plug can be linearly moved in the flow direction of the gas. The bracket 118 does not block the first air inlet 112.
The structure in the second intake port 132 is substantially the same as that in the first intake port 112, except that the elastic coefficients of the first and second elastic members 115 and 135 are different.
The case 101 includes a box portion 103 and a lid portion 104 covering an opening of the box portion 103, a plurality of partition portions 105 are provided in the box portion 103, and the partition portions 105 partition the case 101 into a plurality of chambers.
The gas inlet and the gas nozzle are provided on the surface of the box portion 103 opposite to the opening.
In this embodiment, the first elastic member 115 and the second elastic member 135 are both springs. Of course, they may alternatively be other resiliently biased members.
The gas water heater also includes a gas inlet passage 150. The flow path of the gas in the gas inlet passage 150 is indicated by a broken line in fig. 2. The gas flows from the outside into the gas inlet channel 150, then into the proportional valve assembly, and then from the proportional valve assembly into the gas inlets (the first gas inlet 112 and the second gas inlet 132) of the gas distributor 100.
The fan 160 is arranged in the gas inlet channel 150, and the rotating speed of the fan 160 is adjusted according to the water temperature in the gas water heater.
The fan 160 also allows premixing of the gas and air therein, which allows the gas to be more fully combusted thereafter.
The outlet end of the gas inlet passage 150 is connected to the first and second gas inlets 112 and 132 through a proportional valve assembly.
The operation of the gas distributor 100 is briefly described below.
When the gas water heater is operated, when a required load is low (a water output amount is small or a temperature difference between water inlet and water outlet is small), both a required air amount and a required gas amount are small, at this time, the fan 160 operates at a low rotation speed, the first valve plug 116 moves toward the fluid outflow side (upper side in fig. 3) against the elastic force of the first elastic member 115, and as the rotation speed of the fan 160 increases (i.e., an air amount demand increases), the opening degree of the first air inlet 112 increases, and an increase in air supply of the gas distributor 100 is realized.
When the required load is increased or the required load is large (the water outlet amount becomes large or the temperature difference between the inlet water and the outlet water becomes large or large), both the required air volume and the gas volume are large, at this time, the fan 160 operates at a high rotation speed, the second valve plug 136 also moves toward the fluid outflow side (upper side in fig. 3) against the elastic force of the second elastic member 135, and as the rotation speed of the fan 160 continues to increase (i.e., the air volume demand increases), the opening degree of the second air inlet 132 increases, and the increase of the air supply of the gas distributor 100 is realized. At this time, the first and second air inlets 112 and 132 are both open, and the first and second sections of the gas distributor 100 are both supplied with gas.
In the description of the present invention, it is to 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 those shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention.
While specific embodiments of the invention have been described above, it will be appreciated by those skilled in the art that this is by way of example only, and that the scope of the invention 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 spirit and scope of the invention, and these changes and modifications are within the scope of the invention.
Claims (11)
1. A gas distributor, characterized in that it comprises: a housing;
a plurality of cavities are arranged in the shell, and each cavity is correspondingly provided with an air inlet and a plurality of gas nozzles which are communicated with the cavity;
every be equipped with disk seat, elastic component and valve plug in the air inlet, the valve plug is located the fluid outflow side of disk seat, the elastic component is making the valve plug butt the bias in the direction of disk seat the valve plug, every the elastic coefficient of the elastic component in the air inlet is all inequality, the disk seat has annular inclined surface, inclined surface outwards expands radially towards the fluid outflow side, the valve plug butt in the one end of the fluid inflow of the inclined surface of disk seat.
2. A gas distributor as claimed in claim 1, wherein each of said chambers has a different number of gas nozzles.
3. The gas distributor of claim 1, wherein said valve seat has an abutment surface extending perpendicular to the direction of movement of the valve plug, said abutment surface being provided with a sealing ring.
4. The gas distributor of claim 1, wherein each of said inlet ports further comprises a valve stem and a bracket, said valve stem being connected to the fluid outlet side of said valve plug, said bracket being fixed relative to the sidewall of the inlet port, said bracket having a barrel portion, said valve stem being movably inserted into said barrel portion.
5. The gas distributor of claim 1 wherein said housing includes a box portion and a cover portion covering an opening in said box portion, said box portion having a plurality of partitions therein, said partitions dividing said housing into a plurality of said chambers.
6. A gas distributor as claimed in claim 5, in which said gas inlet and said gas nozzles are provided in the face of said box portion opposite said opening.
7. The gas distributor of claim 1 wherein said resilient member is a spring.
8. A gas distributor, comprising a housing;
a first cavity and a second cavity are arranged in the shell, and a first air inlet, a second air inlet, a plurality of first gas nozzles and a plurality of second gas nozzles are arranged on the shell;
the first air inlet and the first gas nozzle are both communicated with the first chamber, and the second air inlet and the second gas nozzle are both communicated with the second chamber;
a first valve seat, a first elastic piece and a first valve plug are arranged in the first air inlet, the first valve plug is arranged on the fluid outflow side of the first valve seat, and the first elastic piece biases the first valve plug in the direction of enabling the first valve plug to abut against the first valve seat;
a second valve seat, a second elastic member and a second valve plug are arranged in the second air inlet, the second valve plug is arranged on the fluid outflow side of the second valve seat, and the second elastic member biases the second valve plug in the direction of enabling the second valve plug to abut against the second valve seat;
the elastic coefficient of the first elastic piece is smaller than that of the second elastic piece, and the number of the first gas nozzles is smaller than that of the second gas nozzles;
the first valve seat has an annular inclined surface that expands radially outward toward a fluid outflow side, and the first valve plug abuts against an end of the inclined surface of the first valve seat where fluid flows in;
the second valve seat has an annular inclined surface that expands radially outward toward the fluid outflow side, and the second valve plug abuts against an end of the inclined surface of the second valve seat, at which the fluid flows in.
9. A gas water heater characterized in that it comprises a gas water heater according to claim 8.
10. The gas water heater of claim 9, further comprising a gas inlet channel, wherein a fan is disposed in the gas inlet channel, and the speed of the fan is adjusted according to the temperature of water in the gas water heater;
the outlet end of the fuel gas inlet channel is communicated with the first air inlet and the second air inlet.
11. Gas water heater, characterized in that it comprises a gas distributor according to any one of claims 1-7;
the gas water heater also comprises a gas inlet channel, a fan is arranged in the gas inlet channel, and the rotating speed of the fan is adjusted according to the water temperature in the gas water heater;
the outlet end of the fuel gas inlet channel is communicated with all the air inlets.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110035619.6A CN112629041B (en) | 2021-01-12 | 2021-01-12 | Gas distributor and gas water heater comprising same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110035619.6A CN112629041B (en) | 2021-01-12 | 2021-01-12 | Gas distributor and gas water heater comprising same |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112629041A CN112629041A (en) | 2021-04-09 |
| CN112629041B true CN112629041B (en) | 2022-03-29 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110035619.6A Active CN112629041B (en) | 2021-01-12 | 2021-01-12 | Gas distributor and gas water heater comprising same |
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| Country | Link |
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| CN (1) | CN112629041B (en) |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2577181Y (en) * | 2002-09-30 | 2003-10-01 | 陈志华 | Gas-quantity distribution valve of gas water-heater |
| CN101173821B (en) * | 2006-10-30 | 2010-05-26 | 海尔集团公司 | Blue flame sectional air supply gas water heater |
| CN210128517U (en) * | 2019-04-26 | 2020-03-06 | 嘉兴市日工机械股份有限公司 | High-efficient water heater gas distributor |
| CN111720600A (en) * | 2020-07-22 | 2020-09-29 | 肯赛思防爆技术(苏州)有限公司 | Pneumatic/safety valve for positive pressure explosion prevention |
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2021
- 2021-01-12 CN CN202110035619.6A patent/CN112629041B/en active Active
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| Publication number | Publication date |
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| CN112629041A (en) | 2021-04-09 |
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