CN111473521B - Gas distributor and gas water heater applying same - Google Patents
Gas distributor and gas water heater applying same Download PDFInfo
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- CN111473521B CN111473521B CN201910067359.3A CN201910067359A CN111473521B CN 111473521 B CN111473521 B CN 111473521B CN 201910067359 A CN201910067359 A CN 201910067359A CN 111473521 B CN111473521 B CN 111473521B
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- gas
- screw rod
- pipe body
- gas distributor
- front pipe
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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
A fuel gas distributor comprises a front pipe body, a screw rod, a motor, a rack, a valve shell and a rotating shaft, wherein the front pipe body is provided with a plurality of air outlets which are distributed along a linear direction, and the screw rod is rotatably arranged in the front pipe body in parallel with the arrangement direction of the air outlets; the rack is slidably arranged on the screw rod and is provided with an internal thread matched with the external thread of the screw rod; the rotating shafts are multiple, one end of each rotating shaft is provided with a gear in meshing transmission with the rack, the other end of each rotating shaft is provided with a hollow valve core, and the valve core is provided with a spherical outer wall and is in rotating fit with the inner cavity of the valve shell and can adjust the size of the air outlet of the valve shell. The invention also discloses a gas water heater. The motor drives the screw rod, the screw rod drives the rack to move transversely, and then the valve core is changed in position relative to the valve shell, so that the size of the air outlet is adjusted, and stepless distribution of fuel gas is realized.
Description
Technical Field
The invention relates to a component of a gas water heater, in particular to a gas distributor.
Background
The existing gas distribution structure is a core component for automatically adjusting the combustion load of a gas water heater, and in order to ensure that the combustion area from the minimum load to the maximum load is wide enough, a plurality of cavities need to be designed on a front pipe as much as possible, so that more load intervals are realized through combination of different cavities, and the water heater can accurately control the temperature. The traditional gas distribution system comprises a front pipe fitting, a gas proportional valve and an electromagnetic valve, wherein the gas proportional valve and the electromagnetic valve are installed on the front pipe, each cavity is independently controlled by one electromagnetic valve, the number of the cavities cannot be too large due to the limitation of the installation space of the electromagnetic valve, the number of the cavities is usually 2-3, and only 2-3 sections of fire exist during combustion.
The related documents refer to a micro fire distributor and a gas water heater in the chinese utility model patent No. ZL201721662624.5 (publication No. CN207610412U), in which the micro fire distributor includes a first distributor and a second distributor connected to each other, at least one first gas channel is disposed in the first distributor, the gas outlet end of the first gas channel is connected to at least three gas nozzles, at least two second gas channels are disposed in the second distributor, and one of the second gas channels is disposed
The gas channel is communicated with less than three gas nozzles, the gas outlet ends of the other second gas channels are communicated with at least three gas nozzles, and the gas inlet ends of the first gas channel and the second gas channel are controlled to be opened and closed through electromagnetic valves.
The existing gas distributor has the following defects: firstly, the number of cavities is large, and the requirement on manufacturing of the front pipe body is high; secondly, the gas control is simple, the combustion area is narrow, and only two-stage fire or three-stage fire can not meet the combustion requirements of various water temperatures.
Disclosure of Invention
The present invention is directed to provide a gas distributor capable of realizing a wide combustion range in view of the above-mentioned technical situation.
In view of the above technical situation, a further object of the present invention is to provide a gas distributor without an electromagnetic valve.
In view of the above-mentioned technical problem, a further object of the present invention is to provide a gas distributor with a low requirement for manufacturing a head pipe body.
The technical scheme adopted by the invention for solving the technical problems is as follows: a fuel gas distributor comprises a front pipe body, a plurality of fuel gas outlets and a plurality of fuel gas outlets, wherein the plurality of fuel gas outlets are arranged along a straight line; the gas distributor also comprises
The screw rod is rotatably arranged in the front tube body in parallel with the arrangement direction of the air outlet;
the power output end of the motor is connected with the screw rod, and the motor can rotate forwards and backwards;
the rack is slidably arranged on the screw rod and is provided with an internal thread matched with the external thread of the screw rod;
the valve casings are arranged at the inner ends of the air outlets, the inner wall of each valve casing is provided with a spherical inner cavity, and the inner cavity is provided with an air inlet hole communicated with the inner cavity of the front pipe body and an air outlet hole connected with the air outlet of the front pipe body; and
the pivot, for a plurality of, every pivot one end is equipped with aforementioned rack toothing driven gear, and the other end is equipped with hollow case, and this case has spherical outer wall and rotates the cooperation with the inner chamber of aforementioned valve casing and can adjust the size of valve casing venthole.
For the smooth orderly slip of messenger's rack ability, the parallel lead screw direction of the inner wall of head tube body is equipped with the guide bar, the rack on have and run through the guiding hole that sets up on the guide bar.
Further, a sealing ring is arranged between the inner wall of the valve shell and the outer wall of the valve core.
Further, the head tube body is the bar form, the motor locate the outer wall of head tube body, the gas outlet arrange in one side of head tube body along the length direction of head tube body, the outer end of every gas outlet all is equipped with the nozzle.
Preferably, the motor is a stepping motor.
The utility model provides a gas water heater, includes casing, gas distributor, heat exchanger and gas intake pipe, and aforementioned gas distributor and heat exchanger locate in the casing, and aforementioned gas intake pipe is connected with the air inlet of the head tube body of gas distributor, and aforementioned gas distributor's outer end is formed with the combustion chamber, and aforementioned heat exchanger is close to the combustion chamber setting.
Compared with the prior art, the invention has the advantages that: the motor drives the screw rod, the screw rod drives the rack to move transversely, and then the valve core is changed in position relative to the valve shell, so that the size of the air outlet is adjusted, stepless distribution of fuel gas is realized, and the combustion area is widened; the front pipe body and the electromagnetic valve are only required to be one respectively, so that the installation space is saved, and in addition, the front pipe body only needs one inner cavity, so that the manufacturing requirement is reduced.
Drawings
FIG. 1 is a schematic structural diagram of an embodiment.
Fig. 2 is a reverse side view of the embodiment.
Fig. 3 is an exploded view of the embodiment.
FIG. 4 is a sectional view of the embodiment.
Fig. 5 is a state diagram of the embodiment with a single ball valve maximally opened.
FIG. 6 is a state diagram of a single ball valve of the embodiment in a closed state.
FIG. 7 is a reference view showing a state in which a part of the ball valve according to the embodiment is opened.
FIG. 8 is a reference diagram of the usage status of the embodiment.
Detailed Description
The invention is described in further detail below with reference to the accompanying examples.
As shown in fig. 1, 2, 3 and 4, the gas distributor in the present embodiment includes a front pipe body 1, a motor 3, a screw rod 2, a rack 4, a valve housing 53 and a rotation shaft 5, the front pipe body 1 has a plurality of gas outlets 12 as a gas inlet 11, and the plurality of gas outlets 12 are arranged in a linear direction. When in normal use, the front tube body 1 is provided with a cover plate (not shown in the figure) so as to enable the whole inner cavity to be in a sealing state.
The screw rod 2 is rotatably arranged in the front tube body 1 in a direction parallel to the arrangement direction of the air outlet 12; the power output end of the motor 3 is connected with the screw rod 2, and the motor 3 can rotate forward and backward; the motor 3 in this embodiment is a stepping motor.
The rack 4 is slidably arranged on the screw rod 2 and is provided with an internal thread matched with the external thread of the screw rod 2; the valve shell 53 is provided with a plurality of valve shells which are arranged at the inner ends of the air outlets 12 respectively, the inner wall of each valve shell 53 is provided with a spherical inner cavity, and the inner cavity is provided with an air inlet communicated with the inner cavity of the front tube body 1 and an air outlet connected with the air outlet 12 of the front tube body 1; the valve housing 53 and the valve core 52 form a ball valve.
The rotating shaft 5 is provided with a plurality of rotating shafts, one end of each rotating shaft 5 is provided with a gear 51 which is meshed with the rack 4 for transmission, the other end of each rotating shaft is provided with a hollow valve core 52, and the valve core 52 is provided with a spherical outer wall and is matched with the inner cavity of the valve shell 53 in a rotating mode and can adjust the size of an air outlet hole of the valve shell 53. A sealing ring 54 is arranged between the inner wall of the valve shell 53 and the outer wall of the valve core 52.
Two guide rods 6 are arranged on the inner wall of the front tube body 1 in a direction parallel to the screw rod 2, and guide holes penetrating through the guide rods 6 are formed in the rack 4. The guide bar 6 can make the rack 4 slide smoothly.
The head tube body 1 in this embodiment is the bar form, and motor 3 locates the outer wall of head tube body 1, and gas outlet 12 arranges in one side of head tube body 1 along the length direction of head tube body 1, and the outer end of every gas outlet 12 all is equipped with nozzle 13.
As shown in fig. 7, the gas water heater includes a housing 7, a gas distributor 10, a heat exchanger 72 and a gas inlet pipe 73, the gas distributor 10 and the heat exchanger 72 are disposed in the housing 7, the gas inlet pipe 73 is connected to the gas inlet 11 of the front pipe body 1 of the gas distributor 10, a combustion chamber 71 is formed at the outer end of the gas distributor 10, and the heat exchanger 72 is disposed near the combustion chamber.
In this embodiment, the ratio of the number of teeth of the gear 51 to the number of teeth of the rack 4 is 4:1, and the gear 51 rotates for 1/4 turns when the rack 4 completely passes through.
The working principle is as follows: in the initial state, the rack 4 is at the rightmost end, the combined state of all the valve cores 52 and the valve casings 53 is shown in fig. 6, and the air passages are not communicated; when the ball valve works, the motor 3 drives the screw rod 2 to rotate, the rack 4 moves leftwards under the action of the screw rod 2 and the guide rod 6, meanwhile, the rack 4 is meshed with the gear 51 and drives the gear 51 to rotate, the gear 51 drives the valve core 52 to rotate through the transmission of the rotating shaft 5, when the rack 4 is disengaged, the ball rotates 1/4 circles, and the state is shown in fig. 5, namely, the air path is communicated. Therefore, only by controlling the movement of the motor 3 and moving the rack 4 to different positions, the communication of different numbers of gas paths can be realized, and as shown in fig. 7, 6 gas paths are communicated. Of course, at a certain position, the valve core 52 and the valve casing 53 on a certain air outlet can be matched to open part of the air passage.
The embodiment can realize stepless distribution of fuel gas and wide combustion domain; the front pipe body and the electromagnetic valve are only required to be respectively arranged, so that the space is saved.
Each nozzle is provided with a ball valve structure independently, and the opening and the closing of each ball valve are controlled through the meshing motion of the rack 4 and the gear 51 so as to realize the stepless distribution of the gas.
Claims (6)
1. A fuel gas distributor comprises a front pipe body (1), wherein the front pipe body (1) is provided with an air inlet (11) and a plurality of air outlets (12), and is characterized in that the air outlets (12) are arranged along a straight line direction; the gas distributor also comprises
The screw rod (2) is rotatably arranged in the front pipe body (1) in a direction parallel to the arrangement direction of the air outlet (12);
the power output end of the motor (3) is connected with the screw rod (2), and the motor (3) can rotate forwards and backwards;
the rack (4) is arranged on the screw rod (2) in a sliding way and is provided with an internal thread matched with the external thread of the screw rod (2);
a plurality of valve casings (53) are arranged at the inner ends of the air outlets (12) respectively, the inner wall of each valve casing (53) is provided with a spherical inner cavity, and the inner cavity is provided with an air inlet communicated with the inner cavity of the front tube body (1) and an air outlet connected with the air outlets (12) of the front tube body (1); and
the rotating shafts (5) are multiple, one end of each rotating shaft (5) is provided with a gear (51) in meshing transmission with the rack (4), the other end of each rotating shaft is provided with a hollow valve core (52), and the valve core (52) is provided with a spherical outer wall, is in rotating fit with the inner cavity of the valve shell (53) and can adjust the size of an air outlet hole of the valve shell (53).
2. The fuel gas distributor according to claim 1, wherein the inner wall of the front pipe body (1) is provided with a guide rod (6) parallel to the direction of the screw rod (2), and the rack (4) is provided with a guide hole penetrating the guide rod (6).
3. Gas distributor according to claim 1, characterized in that a sealing ring (54) is provided between the inner wall of the valve housing (53) and the outer wall of the valve core (52).
4. The fuel gas distributor according to claim 1, wherein the front pipe body (1) is strip-shaped, the motor (3) is arranged on the outer wall of the front pipe body (1), the gas outlets (12) are arranged on one side of the front pipe body (1) along the length direction of the front pipe body (1), and the outer end of each gas outlet (12) is provided with a nozzle (13).
5. Gas distributor according to claim 1, characterized in that said electric motor (3) is a stepper motor.
6. A gas water heater with the gas distributor of any one of claims 1 to 5 applied comprises a shell (7), the gas distributor (10), a heat exchanger (72) and a gas inlet pipe (73), wherein the gas distributor (10) and the heat exchanger (72) are arranged in the shell (7), the gas inlet pipe (73) is connected with an air inlet (11) of a front pipe body (1) of the gas distributor (10), a combustion chamber (71) is formed at the outer end of the gas distributor (10), and the heat exchanger (72) is arranged close to the combustion chamber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910067359.3A CN111473521B (en) | 2019-01-24 | 2019-01-24 | Gas distributor and gas water heater applying same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910067359.3A CN111473521B (en) | 2019-01-24 | 2019-01-24 | Gas distributor and gas water heater applying same |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111473521A CN111473521A (en) | 2020-07-31 |
| CN111473521B true CN111473521B (en) | 2022-03-18 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910067359.3A Active CN111473521B (en) | 2019-01-24 | 2019-01-24 | Gas distributor and gas water heater applying same |
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| Country | Link |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112747474B (en) * | 2021-01-07 | 2022-05-03 | 宁波方太厨具有限公司 | Gas distributor and gas distribution method of water heater |
| CN112762621B (en) * | 2021-01-08 | 2022-03-29 | 宁波方太厨具有限公司 | Gas distributor, electrodeless gas distribution method for water heater and distribution system |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU1262212A1 (en) * | 1984-03-26 | 1986-10-07 | Dublenich Emelyan | Heating device flow governor |
| CN101210741A (en) * | 2006-12-28 | 2008-07-02 | 海尔集团公司 | Combustion gas distribution device for blue-flame gas water heater |
| CN103511572A (en) * | 2013-05-23 | 2014-01-15 | 唐坤亮 | Transmission |
| CN104048067A (en) * | 2013-03-13 | 2014-09-17 | 博西华电器（江苏）有限公司 | Gas stove and gas flow rate control device for gas stove |
| CN105003720A (en) * | 2014-04-18 | 2015-10-28 | 温州职业技术学院 | Butterfly valve driving device based on gear transmission mechanism |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108758628A (en) * | 2018-06-27 | 2018-11-06 | 深圳市卓益节能环保设备有限公司 | Burner and firepower Automatic adjustment method |
-
2019
- 2019-01-24 CN CN201910067359.3A patent/CN111473521B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU1262212A1 (en) * | 1984-03-26 | 1986-10-07 | Dublenich Emelyan | Heating device flow governor |
| CN101210741A (en) * | 2006-12-28 | 2008-07-02 | 海尔集团公司 | Combustion gas distribution device for blue-flame gas water heater |
| CN104048067A (en) * | 2013-03-13 | 2014-09-17 | 博西华电器（江苏）有限公司 | Gas stove and gas flow rate control device for gas stove |
| CN103511572A (en) * | 2013-05-23 | 2014-01-15 | 唐坤亮 | Transmission |
| CN105003720A (en) * | 2014-04-18 | 2015-10-28 | 温州职业技术学院 | Butterfly valve driving device based on gear transmission mechanism |
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| Publication number | Publication date |
|---|---|
| CN111473521A (en) | 2020-07-31 |
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