CN111810426A - High-efficient air feeder of gas boiler - Google Patents

Abstract

The invention relates to the technical field of fans, and discloses a high-efficiency gas supply device of a gas boiler, which comprises a shell, an accelerating component and a cleaning component, wherein an accelerating cavity and a containing cavity are arranged in the shell, the accelerating cavity is communicated with the containing cavity, the accelerating component is rotationally arranged in the accelerating cavity, the cleaning component is movably arranged between the accelerating cavity and the containing cavity, an air inlet, an air outlet I and an air outlet II which are communicated with the accelerating cavity are also arranged on the shell, and valves are respectively arranged in the air outlet I and the air outlet II; when the device is in a shutdown cleaning state, the first air outlet is closed, the second air outlet is opened, the cleaning component moves into the accelerating cavity from the accommodating cavity, and the cleaning component performs cleaning operation on the accelerating component; when the device is in the blowdown state, air outlet one closes and air outlet two opens, and clean subassembly removes to accomodating the intracavity once more, and the subassembly will accelerate the intracavity remaining deposition and send out from air outlet two through the air current with higher speed, realizes the purpose of quick deashing.

Description

High-efficient air feeder of gas boiler

Technical Field

The invention relates to the technical field of fans, in particular to a high-efficiency gas supply device of a gas boiler.

Background

A blower is a device that sucks air from the outside, accelerates the air inside, and then discharges the air. Wherein, a fan is often needed in a large-scale gas boiler, and a large amount of air is sent in by the fan, thereby ensuring the normal running of the oxidation reaction in the boiler.

The prior publication No. CN202659532U discloses a fan without changing the flow direction of discharged and delivered gas, which comprises a fan shell and an impeller, wherein the fan shell is cuboid, an air inlet is arranged at the lower end of one side of the fan shell, and an air outlet is arranged at the upper end of the side opposite to the air inlet;

when the impeller rotates, the impeller pushes the air in the fan shell to be discharged from the air outlet, and the air inlet is continuously supplemented with new air.

The above prior art solutions have the following drawbacks:

when using this fan for a long time, wherein the one side that the blade promoted the air current is the dust in the adhesion air very easily and form and pile up, in order to avoid massive deposition to gush into gas boiler, regular need unpack the fan apart, clear away the deposition on the blade, but the dismouting fan takes time, needs the air supply in the long-time pause gas boiler, causes the interior long-time oxygen deficiency of gas boiler, influences combustion efficiency.

Disclosure of Invention

In view of the defects in the prior art, one of the objectives of the present invention is to provide a high efficiency gas supply device for a gas boiler, in which a cleaning assembly is disposed to achieve the purpose of cleaning without disassembly, so as to ensure the purposes of rapid cleaning and recovering gas supply to a combustion furnace, and further ensure the combustion efficiency of the combustion furnace.

The above object of the present invention is achieved by the following technical solutions:

a high-efficiency gas supply device for a gas boiler comprises

A shell: an accelerating cavity and a containing cavity are arranged in the machine shell, the accelerating cavity is communicated with the containing cavity, and an air inlet, an air outlet I and an air outlet II are also arranged on the machine shell;

valve assembly: the air outlet I or the air outlet II is sealed;

an acceleration component: the accelerating assembly comprises an impeller plate rotationally arranged in the accelerating cavity and blades circumferentially arranged on the impeller plate at intervals, the blades are used for pushing air to flow, the blades are rotationally arranged on the impeller plate, and the rotating axes of the blades are parallel to the axis of the impeller plate;

a cleaning component: the cleaning assembly comprises a cleaning seat movably arranged between the accelerating cavity and the accommodating cavity, the cleaning seat is rotatably arranged around an axis parallel to the impeller plate, cleaning brushes distributed on the cleaning seat around the rotating axis of the cleaning seat are matched with the blades in a sliding and abutting mode;

a first power assembly: the driving device is used for driving the blades to rotate and fix;

a second power assembly: the device is used for driving the cleaning seat to move and rotate relative to the impeller plate;

the efficient gas feeding device of the gas boiler comprises an air supply state, a shutdown cleaning state and a pollution discharge state, wherein in the air supply state, the first air outlet is opened, the second air outlet is closed, the blades push one side of air to face the center of the impeller plate, and the cleaning seat rotates among the blades; when the machine is stopped and in a cleaning state, the first air outlet is closed, the second air outlet is opened, the blades extend along the radial direction of the impeller plate, and the cleaning assembly is positioned in the accommodating cavity; when the sewage discharge state is realized, the first air outlet is closed, the second air outlet is opened, the blades push one side of air to face the center of the impeller plate, and the cleaning seat is arranged among the blades.

By adopting the technical scheme, when the device is in a normal air supply state, the first air outlet is opened, the second air outlet is closed, the cleaning component moves into the containing cavity, the accelerating component drives the airflow in the accelerating cavity to accelerate, so that air is sucked into the accelerating cavity from the air inlet, and high-flow-rate air is discharged from the first air outlet, and normal air supply is realized;

when the device is in a shutdown cleaning state, the first air outlet is closed, the second air outlet is opened, the first driving assembly enables the blade to rotate until one side of the blade pushing airflow faces the center of the impeller plate, then the second driving assembly enables the cleaning assembly to move into the accelerating cavity from the accommodating cavity, and the second driving assembly enables the cleaning assembly to rotate relative to the accelerating assembly, so that sliding friction is generated between bristles and the blade, dust deposited on the blade is scraped off, and the first step of cleaning operation is completed;

then when the device is in the blowdown state, air outlet one is closed and air outlet two is opened, and clean subassembly removes to accomodating the intracavity once more, and the subassembly will accelerate the intracavity remaining deposition and send out from air outlet two through the air current with higher speed, realizes the purpose of high-efficient deashing.

The present invention in a preferred example may be further configured to: the accelerating assembly further comprises a main shaft coaxially fixed with the impeller plate, one end of the main shaft extends into the accommodating cavity, the other end of the main shaft extends out of the casing, and the cleaning seat is coaxially sleeved on the main shaft in a sliding mode.

Through adopting above-mentioned technical scheme, the cooperation of main shaft and clean seat for the stable back and forth movement between accelerating chamber and accomodating the chamber of clean subassembly, the coaxial axis of rotation that has also injectd clean subassembly, make stable sliding friction between clean subassembly and the blade, scrape the deposition on the blade and fall, realize the purpose of deashing.

The present invention in a preferred example may be further configured to: the cleaning device is characterized in that the main shaft is arranged in a hollow mode, the power assembly II comprises an inner shaft which is coaxially and rotatably arranged in the main shaft, a moving ring is in threaded fit with the inner shaft, a connecting rod is arranged between the moving ring and the cleaning seat, and an avoiding groove which is used for avoiding the connecting rod to slide is formed in the main shaft.

By adopting the technical scheme, when the machine is stopped for cleaning, the main shaft and the inner shaft are controlled to rotate oppositely, and meanwhile, the moving ring moves along the axis direction of the inner shaft, so that the cleaning assembly is driven to move between the blades, and the preparation before cleaning is finished.

The present invention in a preferred example may be further configured to: the cleaning seat comprises an inner ring and an outer ring which are coaxial, the inner ring and the outer ring are arranged in a rotating mode, the inner ring is fixedly connected with the connecting rod, the second power assembly further comprises a corrugated pipe, and two ends of the corrugated pipe are fixed to the outer ring and the bottom of the containing cavity respectively.

By adopting the technical scheme, the corrugated pipe has the characteristic of being capable of stretching on the axis of the corrugated pipe, when the machine is stopped for cleaning, the inner shaft and the main shaft are driven to rotate at the same speed in the same direction, the blades and the impeller plate are relatively fixed and synchronously rotate, the inner ring synchronously rotates, the inner ring is still fixed under the limitation of the corrugated pipe, and therefore, the blades and the cleaning brush relatively move, and the purpose that the cleaning brush scrapes off accumulated dust on the blades is achieved.

The present invention in a preferred example may be further configured to: accomodate the chamber and run through the casing and keep away from one side in chamber with higher speed, and this side can be dismantled and set up in sealed lid, the main shaft runs through sealed lid, circumference interval is equipped with the slot on the outer loop, the axis direction of slot edge outer loop extends, the cleaning brush is including inlaying the cutting and a plurality of brush hair of being fixed in on the cutting of locating in the slot.

Through adopting above-mentioned technical scheme, after opening sealed lid, the change cleaning brush that can relax, it has too much deposition to avoid the adhesion on the brush hair, and then guarantees the effect of deashing.

The present invention in a preferred example may be further configured to: the impeller plate is hollow, a rotating shaft penetrating through the impeller plate extends from the blades, the first power assembly comprises a driven gear coaxially fixed on the rotating shaft, the driven gear is located in the impeller plate, and a driving gear meshed with the driven gear is coaxially arranged on the inner shaft.

By adopting the technical scheme, when in an air supply state or a pollution discharge state, the main shaft and the inner shaft rotate at the same speed in the same direction, so that the driving gear and the driven gear are relatively fixed, and the blades are relatively fixed relative to the impeller plate, thereby realizing the purpose of stably pushing airflow to accelerate;

when the machine is stopped for cleaning, the main shaft and the inner shaft rotate oppositely and reversely, the driving gear is meshed with the driven gear, so that the blades rotate relative to the impeller plate, one side of airflow is pushed by the blades to face the center of the impeller plate, and preparation before cleaning is finished.

The present invention in a preferred example may be further configured to: the impeller board includes left side board, intermediate ring and the right side board that sets gradually along its axis, the main shaft includes with left side board coaxial fixation's left outer axle and with right side board relatively fixed's right outer axle.

Through adopting above-mentioned technical scheme, the impeller plate adopts detachable construction to set up, and then is convenient for the installation of driven gear on the blade.

In summary, the invention includes at least one of the following beneficial technical effects:

1. due to the arrangement of the cleaning assembly, the aim of cleaning dust deposited on the blades without disassembling the shell is fulfilled, the aim of efficiently cleaning dust is fulfilled, the equipment halt is reduced, and the gas supply and combustion efficiency of the boiler are guaranteed;

2. the device adopts two motors as power sources, so that various purposes of normal rotation of the accelerating assembly, rotation adjustment of the blades, movement of the cleaning assembly and relative rotation of the cleaning assembly and the accelerating assembly are achieved, and the requirement of equipment on the power sources is greatly simplified;

3. the inner shaft is matched with the main shaft in the rotating direction, so that the blade rotation adjustment and the sliding adjustment of the cleaning assembly are synchronously performed, and the ash removal efficiency is further improved;

4. the impeller plate adopts a detachable installation structure, so that the driven gear on the blade is meshed with the driving gear on the inner shaft, and the rotation and the fixation of the blade can be conveniently controlled through the inner shaft.

Drawings

FIG. 1 is a schematic view of an assembly of an efficient gas supply apparatus for a gas boiler;

fig. 2 is a sectional view for embodying the internal structure of the cabinet;

FIG. 3 is an exploded view of a structure for embodying an acceleration assembly;

FIG. 4 is a schematic half-sectional view for embodying a cleaning base mounting structure;

fig. 5 is an exploded schematic view for embodying a cleaning brush mounting structure.

In the figure, a1, chassis; a2, an accelerating cavity; a3, a containing cavity; a4, an air inlet; a5, air outlet I; a6 and an air outlet II; a7, sealing cover; a71, supporting feet; a72, a roller; a8, a first motor; a9, motor two;

b1, an acceleration component; b2, a main shaft; b21, left outer shaft; b22, right outer shaft; b23, an avoiding groove; b3, impeller plate; b31, left side panel; b32, intermediate ring; b33, right side panel; b4, a blade; b41, a rotating shaft; b42, a driven gear;

c1, cleaning assembly; c2, an inner shaft; c21, drive gear; c3, moving ring; c31, connecting rod; c4, cleaning seat; c5 inner ring; c51, a snap ring; c6, outer ring; c61, a ring groove; c62, slot; c7, cleaning brush; c71, cutting; c72, brush hair; c8, bellows.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

As shown in fig. 1 and 2, a high-efficiency gas feeding device for a gas boiler includes a casing a1, an acceleration module B1, and a cleaning module C1, wherein an acceleration cavity a2 and a receiving cavity A3 are provided in the casing a1, the acceleration cavity a2 is communicated with the receiving cavity A3, the acceleration module B1 is rotatably disposed in an acceleration cavity a2, the cleaning module C1 is movably disposed in the acceleration cavity a2 and the receiving cavity A3, and an air inlet a4, an air outlet A5, and an air outlet two A6 which are communicated with the acceleration cavity a2 are further provided on the casing a1, wherein valves are respectively disposed in the air outlet one A5 and the air outlet two A6;

when the device is in a normal air supply state, the first air outlet A5 is opened, the second air outlet A6 is closed, the cleaning component C1 moves into the accommodating cavity A3, the accelerating component B1 drives the airflow in the accelerating cavity A2 to accelerate, so that air is sucked into the accelerating cavity A2 from the air inlet A4, and high-flow-rate air is discharged from the first air outlet A5, and normal air supply is realized;

when the device is in a shutdown cleaning state, the first air outlet A5 is closed, the second air outlet A6 is opened, the cleaning component C1 moves into the acceleration cavity A2 from the containing cavity A3, and the cleaning component C1 performs cleaning operation on the acceleration component B1;

when the device is in a pollution discharge state, the first air outlet A5 is closed, the second air outlet A6 is opened, the cleaning component C1 moves into the accommodating cavity A3 again, and the accelerating component B1 sends accumulated dust remaining in the accelerating cavity A2 out of the second air outlet A6 through air flow, so that the purpose of cleaning dust is achieved.

As shown in fig. 2 and 3, the acceleration assembly B1 includes a main shaft B2 and an impeller B3, the main shaft B2 penetrates through the casing a1 and the acceleration cavity a2 and the receiving cavity A3, the impeller B3 and the main shaft B2 are coaxially fixed, blades B4 are circumferentially spaced on one side of the impeller B3 facing the receiving cavity A3, the blades B4 are perpendicular to the impeller B3, the blades B4 are rotatably mounted on the impeller B3, and the rotation axis of the blades B4 is parallel to the main shaft B2. The cleaning component C1 comprises a cleaning seat C4 and a cleaning brush C7, the cleaning seat C4 is coaxially sleeved on the main shaft B2, and the cleaning brushes C7 are circumferentially distributed on the outer side of the cleaning seat C4 at intervals;

when the air supply state or the sewage discharge state is carried out, the blades B4 are arranged along the radial direction of the impeller plate B3, and when the main shaft B2 drives the impeller plate B3 to rotate, the blades B4 push the airflow in the accelerating cavity A2 to accelerate, so that the aims of high-efficiency air supply and quick sewage discharge are fulfilled;

when the machine is stopped in a cleaning state, the blades B4 are rotated, so that the blades B4 push one side of the airflow to the center of the impeller plate B3, the cleaning assembly C1 moves between the blades B4 and rotates, the main shaft B2 is matched with the cleaning seat C4, so that the cleaning assembly C1 stably moves back and forth between the accelerating cavity A2 and the accommodating cavity A3, the rotating axis of the cleaning assembly C1 is coaxially defined, stable sliding friction between the cleaning assembly C1 and the blades B4 scrapes off the accumulated ash on the blades B4, and the purpose of ash removal is achieved.

As shown in fig. 2 and 3, the impeller plate B3 includes a left side plate B31, a middle ring B32 and a right side plate B33 arranged in sequence along the axis thereof, a hollow space is formed between the left side plate B31 and the right side plate B33, the main shaft B2 includes a left outer shaft B2 and a right outer shaft B2, the left outer shaft B2 is coaxially fixed with the left side plate B2, the right outer shaft B2 is coaxially fixed with the right side plate B2, the middle ring B2 is fixedly installed between the left side plate B2 and the right side plate B2, a rotating shaft B2 extends at a middle position of one side of the blades B2 facing the impeller plate B2, the rotating shaft B2 penetrates through the impeller plate B2, a driven gear B2 is coaxially fixed on the rotating shaft B2, the driven gear B2 is located in the hollow space, a driving gear 2 is hollow arranged in the main shaft B2, an inner shaft C2 is coaxially installed in the main shaft B2, a driving gear 2 is installed in the hollow space between the inner shaft B2, and a coaxial shaft C2 is located in the, the driving gear C21 and the driven gear B42 are both arranged in a meshed manner, a first motor A8 and a second motor A9 which respectively control the rotation of the main shaft B2 and the rotation of the inner shaft C2 are arranged outside the machine shell A1, the rotating end of the first motor A8 and the main shaft B2 are in gear set transmission, and the rotating end of the second motor A9 is coaxially and fixedly connected with the inner shaft C2;

when in an air supply state or a pollution discharge state, the first motor A8 and the second motor A9 control the main shaft B2 and the inner shaft C2 to rotate in the same direction and at the same speed, so that the driving gear C21 and the driven gear B42 are relatively fixed, and the blades B4 are relatively fixed relative to the impeller plate B3, and the aim of stably pushing airflow to accelerate is fulfilled;

when the machine is stopped for cleaning, the first motor A8 and the second motor a9 control the main shaft B2 and the inner shaft C2 to rotate oppositely and reversely, at this time, the driving gear C21 is engaged with the driven gear B42, so that the blade B4 rotates relative to the impeller plate B3, the blade B4 pushes one side of the airflow to the center of the impeller plate B3, one of the preparations before cleaning is completed, and the inner shaft C2, the driving gear C21 and the driven gear B42 form a first power assembly which drives the blade B4 to rotate and be fixed.

As shown in fig. 3 and 4, a moving ring C3 is screwed to the inner shaft C2 located on the side of the impeller plate B3 facing the housing chamber A3, an avoiding groove B23 is formed in the main shaft B2 located on the side of the impeller plate B3 facing the housing chamber A3, the avoiding groove B23 extends in the axial direction of the main shaft B2, a connecting rod C31 is fixed between the moving ring C3 and the sliding seat, and the connecting rod C31 passes through the avoiding groove B23;

when the machine is stopped for cleaning, the first motor A8 and the second motor a9 control the main shaft B2 and the inner shaft C2 to rotate oppositely and reversely, and simultaneously the moving ring C3 moves along the axial direction of the inner shaft C2, so as to drive the cleaning assembly C1 to move between the blades B4, and by controlling the ratio between the radius of the driving gear C21 and the driven gear B42 and the thread pitch of the moving ring C3 in threaded connection, when the blade B4 pushes one side of the airflow to the center of the impeller plate B3, the cleaning assembly C1 is just located between the blades B4, and the second preparation before cleaning is completed.

As shown in fig. 3 and 4, the cleaning seat C4 further includes an inner ring C5 and an outer ring C6 which are coaxial, the inner side of the inner ring C5 is fixedly connected with the connecting rod C31, a snap ring C51 is coaxially fixed on the outer side of the inner ring C5, a ring groove C61 is coaxially arranged on the inner side of the outer ring C6, a snap ring C51 is embedded in the ring groove C61, and when the inner ring C5 moves in the horizontal direction, the outer ring C6 moves synchronously. Meanwhile, a corrugated pipe C8 (combined with fig. 2) is coaxially fixed on one side of the outer ring C6, which is far away from the acceleration assembly B1, the other end of the corrugated pipe C8 is fixed at the bottom of the storage cavity A3, and the corrugated pipe C8 can extend and retract on the axis of the corrugated pipe C3538;

when the machine is stopped for cleaning, the first motor A8 and the second motor a9 drive the inner shaft C2 and the main shaft B2 to rotate in the same direction and speed again, the blades B4 and the impeller plate B3 rotate synchronously, at the same time, the inner ring C5 also rotates synchronously, the inner ring C5 is still fixed under the limit of the bellows C8, even if the blades B4 and the cleaning brush C7 move relatively, the purpose that the cleaning brush C7 scrapes off the dust deposited on the blades B4 is achieved, and the inner shaft C2, the moving ring C3 and the bellows C8 form a second power assembly which controls the movement of the cleaning assembly C1 and the rotation of the cleaning assembly C1.

As shown in fig. 1 and 2, the accommodating cavity A3 penetrates through the side of the casing a1 far from the accelerating cavity a2, and the side is detachably connected with the sealing cover a7, one end of the bellows C8 is fixed on the side of the sealing cover a7 facing the accommodating cavity A3, a through hole is formed in the sealing cover a7, one end of the spindle B2 slides through the through hole, balls are embedded in the through hole at intervals in the circumferential direction, and the balls are in rolling contact with the spindle B2, so that the free rotation of the spindle B2 and the sliding fit between the sealing cover a7 and the spindle B2 are ensured, and the cleaning assembly C1 and the bellows C8 are conveniently mounted by disassembling and assembling the sealing cover a 7.

As shown in fig. 1 and 5, slots C62 are circumferentially spaced at the outer periphery of the outer ring C6, the slots C62 extend along the axial direction of the outer ring C6 and penetrate through the outer ring C6, the cleaning brush C7 includes a slip C71 and bristles C72, a plurality of bristles C72 are uniformly distributed on the slip C71, the slip C71 is detachably embedded in the slot C62, a pair of supporting feet a71 extends from the lower end of the sealing cover a7, a roller a72 is rotatably mounted at the lower end of the supporting feet a71, when the sealing cover a7 is disassembled and assembled, the supporting feet a71 maintain the height of the sealing cover a7, and can still stably support the main shaft B2, and after the sealing cover a7 is opened, the cleaning brush C7 can be easily replaced, excessive dust accumulation on the bristles C72 can be avoided from being adhered, and the dust cleaning effect can be further ensured.

The implementation principle of the embodiment is as follows:

when the machine is stopped for deashing, firstly, the air outlet I A5 is closed, the air outlet II A6 is opened, the main shaft B2 and the outer shaft are driven to rotate reversely by a certain angle, the driving gear C21 and the driven gear B42 are matched to enable the blade B4 to rotate to the side to be deashed and face the center of the impeller plate B3, meanwhile, the cleaning component C1 moves to the middle of the blade B4, then the main shaft B2 and the outer shaft are driven to rotate synchronously, the impeller plate B3 and the blade B4 rotate synchronously, meanwhile, the corrugated pipe C8 limits the rotation of the outer ring C6, the bristles C72 and the blade B4 slide and rub to scrape off the accumulated ash on the blade B4, after a period of time, the cleaning component C1 is driven to reset into the accommodating cavity A3, the blade B4 resets, the main shaft B2 and the outer shaft are driven to rotate at the same speed, the air flow in the accelerating cavity A2 moves at a high speed, and drives the accumulated ash to be.

The embodiments of the present invention are preferred embodiments of the present invention, and the scope of the present invention is not limited by these embodiments, so: all equivalent changes made according to the structure, shape and principle of the invention are covered by the protection scope of the invention.

Claims (7)

1. The utility model provides a high-efficient air supply unit of gas boiler which characterized in that: comprises that

Case (a 1): an accelerating cavity (A2) and a containing cavity (A3) are arranged in the machine shell (A1), the accelerating cavity (A2) is communicated with the containing cavity (A3), and an air inlet (A4), an air outlet I (A5) and an air outlet II (A6) are further arranged on the machine shell (A1);

valve assembly: used for sealing the first air outlet (A5) or the second air outlet (A6);

acceleration assembly (B1): the accelerating assembly (B1) comprises an impeller plate (B3) rotatably arranged in an accelerating cavity (A2) and blades (B4) arranged on the impeller plate (B3) at intervals in the circumferential direction, the blades (B4) are used for pushing air to flow, the blades (B4) are rotatably arranged on the impeller plate (B3), and the rotating axis of the blades (B4) is parallel to the axis of the impeller plate (B3);

cleaning assembly (C1): the cleaning assembly (C1) comprises a cleaning seat (C4) movably arranged between an accelerating cavity (A2) and a containing cavity (A3), the cleaning seat (C4) is rotationally arranged around an axis parallel to an impeller plate (B3), and cleaning brushes (C7) distributed on the cleaning seat (C4) and around the rotational axis thereof are abutted against the blades (B4) when the blades (B4) are cleaned;

a first power assembly: the driving mechanism is arranged in the base shell (A1) and is used for driving the rotation and the fixation of the blade (B4);

a second power assembly: is arranged in the base casing (A1) and is used for driving the movement of the cleaning seat (C4) and the rotation of the cleaning component (C1).

2. A high efficiency gas supply device for a gas boiler as set forth in claim 1, wherein: the accelerating component (B1) further comprises a main shaft (B2) coaxially fixed with the impeller plate (B3), one end of the main shaft (B2) extends into the accommodating cavity (A3), the other end of the main shaft extends out of the machine shell (A1), and the cleaning seat (C4) is coaxially sleeved on the main shaft (B2) in a sliding manner.

3. A high efficiency gas supply device for a gas boiler as set forth in claim 2, wherein: the cavity sets up in main shaft (B2), power component two sets up interior axle (C2) in main shaft (B2) including coaxial rotation, interior axle (C2) are gone up screw-thread fit and are had shift ring (C3), be provided with connecting rod (C31) between shift ring (C3) and clean seat (C4), seted up on main shaft (B2) and dodge connecting rod (C31) gliding groove of dodging (B23).

4. A high efficiency gas supply device for a gas boiler as set forth in claim 3, wherein: clean seat (C4) include coaxial inner ring (C5) and outer loop (C6), inner ring (C5) and outer loop (C6) relative rotation set up, inner ring (C5) and connecting rod (C31) fixed connection, power component two still includes bellows (C8), the both ends of bellows (C8) are fixed in the bottom of outer loop (C6) and receiving chamber (A3) respectively.

5. The efficient gas supply device of a gas boiler as set forth in claim 4, wherein: accomodate chamber (A3) and run through casing (A1) and keep away from the one side in chamber (A2) with higher speed, and this side can dismantle and set up in sealed lid (A7), main shaft (B2) run through sealed lid (A7), slot (C62) have been seted up to circumference interval on outer ring (C6), slot (C62) extend along the axis direction of outer ring (C6), cleaning brush (C7) are including inlaying cutting (C71) and a plurality of brush hair (C72) that are fixed in on cutting (C71) in slot (C62).

6. A high efficiency gas supply device for a gas boiler as set forth in claim 3, wherein: the impeller plate (B3) is arranged in a hollow mode, a rotating shaft (B41) penetrating through the impeller plate (B3) extends from the blade (B4), the first power assembly comprises a driven gear (B42) coaxially fixed on the rotating shaft (B41), the driven gear (B42) is located in the impeller plate (B3), and a driving gear (C21) meshed with the driven gear (B42) is coaxially arranged on the inner shaft (C2).

7. The efficient gas supply device of a gas boiler as set forth in claim 6, wherein: impeller board (B3) include along its axis left side board (B31), intermediate ring (B32) and the right side board (B33) that set gradually, main shaft (B2) include with left side board (B31) coaxial fixed left outer axle (B21) and with right side board (B33) relatively fixed right outer axle (B22).

Images