Utility model content
The utility model is intended at least solve one of above-mentioned technical problem in correlation technique to a certain extent.Therefore,
The utility model proposes a kind of smoke exhaust fan for gas heater, the smoke exhaust fan for being used for gas heater can not only
Realize and put for the strong pump drainage of flue gas, and can realize the radiating to motor, with simple in construction, cost is low, radiating effect
Good, service life length, the advantages of cooling wind draft is adjustable.
The utility model also proposes a kind of smoke evacuation system with the smoke exhaust fan for gas heater.
The utility model also proposes a kind of gas heater with the smoke evacuation system for gas heater.
To achieve the above object, proposed according to the embodiment of first aspect of the present utility model a kind of for gas heater
Smoke exhaust fan, the smoke exhaust fan for gas heater includes:Casing, the casing is provided with gas approach, cooling
Wind inlet and exhanst gas outlet;Impeller, the impeller is rotatably provided in the casing, and the both ends of the surface of the impeller are respectively constituted
Smoking port towards the gas approach and the inlet scoop towards the cooling wind inlet, the outer peripheral face of the impeller constitute direction
The air outlet of the exhanst gas outlet;Dividing plate, the dividing plate is located in the impeller and separates the smoking port and the inlet scoop;
Motor, the motor is installed on the housing and at the cooling wind inlet, and the motor is driven with the impeller to be connected
Connect, wherein, the difference of the maximum radius of the outline of radius and the motor of the cooling wind inlet is size adjustable the
One draft regulated value A, the motor is taken out with described the distance between the wind inlet that cools down for size adjustable second in its axial direction
Power regulated value B.
It can not only be realized for flue gas according to the smoke exhaust fan for gas heater of the utility model embodiment
Strong pump drainage is put, and can realize the radiating to motor, with simple in construction, cost is low, good heat dissipation effect, service life length,
Cool down the advantages of wind draft is adjustable.
In addition, can also be had according to the smoke exhaust fan for gas heater of the utility model embodiment following additional
Technical characteristic:
According to one embodiment of the present utility model, the cooling wind inlet is that varus is lateral opening, the second draft regulation
Value B is the inner face of in-flanges the distance between of the motor in its axial direction with the cooling wind inlet.
According to one embodiment of the present utility model, the overall diameter R0 of the dividing plate and overall diameter R1 of impeller ratio
It is worth for 1/3~1.
According to one embodiment of the present utility model, in the axial direction of the impeller, the dividing plate and the smoking port it
Between distance be more than the distance between the dividing plate and described inlet scoop.
According to one embodiment of the present utility model, the relative position fixation of the dividing plate and the impeller is with the leaf
Wheel rotation.
According to one embodiment of the present utility model, the casing has a volute structure, the gas approach and described cold
But wind inlet be respectively provided at the casing both ends of the surface and the exhanst gas outlet it is opening up.
According to one embodiment of the present utility model, the week of the distance between the impeller and the casing along the casing
Gradually increase to the direction towards the exhanst gas outlet.
A kind of smoke evacuation system for gas heater is proposed according to the embodiment of second aspect of the present utility model, it is described
Smoke evacuation system for gas heater includes:Exhaust fume collecting hood for carrying out rectification to flue gas;For guiding in the exhaust fume collecting hood
Flue gas discharge smoke exhaust fan, the smoke exhaust fan be being used for according to the embodiment of first aspect of the present utility model
The smoke exhaust fan of gas heater, the smoke exhaust fan is arranged on the exhaust fume collecting hood, and the gas approach is towards the collection cigarette
Cover is internal and the cooling wind inlet is towards outside the exhaust fume collecting hood.
According to the smoke evacuation system for gas heater of the utility model embodiment, by using according to the utility model
First aspect embodiment described in the smoke exhaust fan for gas heater, with simple in construction, cost is low, radiating effect
Good, service life length, the advantages of motor cooling effectiveness is adjustable.
A kind of gas heater, the gas heater bag are proposed according to the embodiment of the third aspect of the present utility model
Include:Heat-exchange system;For the combustion system heated to the heat-exchange system;For discharging the cigarette that the combustion system is produced
The smoke evacuation system of gas, the smoke evacuation system is to be used for gas and hot water according to the embodiment of first aspect of the present utility model
The smoke evacuation system of device.
According to the gas heater of the utility model embodiment, by using the reality according to second aspect of the present utility model
The smoke evacuation system for gas heater described in example is applied, with simple in construction, cost is low, service life length, motor cooling effect
The advantages of rate is adjustable.
According to one embodiment of the present utility model, the gas heater also includes:Combustion heat-exchange cavity, the heat exchange
System and the combustion system are located in the combustion heat-exchange cavity, and the exhaust fume collecting hood is arranged on the top of the combustion heat-exchange cavity
Portion.
Embodiment
Embodiment of the present utility model is described below in detail, the example of the embodiment is shown in the drawings, wherein from beginning
Same or similar element or element with same or like function are represented to same or similar label eventually.Below by ginseng
The embodiment for examining accompanying drawing description is exemplary, it is intended to for explaining the utility model, and it is not intended that to the utility model
Limitation.
Below with reference to the accompanying drawings the smoke exhaust fan 200 for gas heater according to the utility model embodiment is described.
As Figure 1-Figure 4, machine is included according to the smoke exhaust fan 200 for gas heater of the utility model embodiment
Shell 210, impeller 220, dividing plate 230 and motor 240.
Casing 210 is provided with exhanst gas outlet 213, cooling wind inlet 212 and exhanst gas outlet 213.Impeller 220 is rotatably set
In casing 210, the both ends of the surface of impeller 220 are respectively constituted towards the smoking port 221 of gas approach 211 and towards cooling wind inlet
212 inlet scoop 222, the outer peripheral face of impeller 220 constitutes the air outlet 223 towards exhanst gas outlet 213, and in other words, impeller 220 is
Double-sided impeller.Dividing plate 230 is located in impeller 220 and separates smoking port 221 and inlet scoop 222.Motor 240 is arranged on casing
On 210 and at cooling wind inlet 212, so that motor 240 and smoking port 221 are separated by dividing plate 230, motor 240 and impeller
220 drive connections, for driving impeller 220 to rotate.
Wherein, the radius of cooling wind inlet 212 and the difference of the maximum radius of the outline of motor 240 are adjustable for size
First draft regulated value A, distance of the motor 240 in the axial direction of motor 240 between cooling wind inlet 212 is adjustable for size
Second draft regulated value B.
Below with reference to the accompanying drawings the work of the smoke exhaust fan 200 for gas heater according to the utility model embodiment is described
Make process.
The operation rear-guard movable vane of motor 240 wheel 220 rotates, the rotation air draught of impeller 220, and high-temperature flue gas is by the quilt of gas approach 211
Smoking port 221 is sucked, and environment cold wind is sucked by cooling wind inlet 212 by inlet scoop 222 and environment cold wind is in the process being inhaled into
Middle process motor 240, so as to be cooled down to motor 240 and its motor shaft 241, the high-temperature flue gas and environment cold wind being inhaled into by
Air outlet 223 delivers to exhanst gas outlet 213 and mixes discharge.Wherein, dividing plate 230 be arranged on smoking port 221 and inlet scoop 222 it
Between, high-temperature flue gas by gas approach 211 enter after stopped by dividing plate 230 and motor 240 and its motor shaft 241 can not be touched.
According to the smoke exhaust fan 200 for gas heater of the utility model embodiment, there is smoking port by setting
221 and the impeller 220 of inlet scoop 222, using double suction wind principle, side sucks flue gas to guide flue gas to discharge, side suction ring
Border cold wind is cooled down to motor 240 and its motor shaft 241, can realize forced fume exhaust, can realize that motor 240 is cooled down again, and
Extra radiator fan need not be set, so as to simplify structure, reduce cost.Also, by setting dividing plate 230 in impeller 220,
Isolating for motor 240 and high-temperature flue gas is realized, high-temperature flue gas directly heating to motor 240 is reduced, reaches the purpose of cooling, enter
One step improves the cooling down effect to motor 240.In addition, passing through the outer of radius and the motor 240 will wind inlet 212 cooled down
The difference of the maximum radius of profile is set to the adjustable first draft regulated value A of size, and by motor 240 motor 240 axle
The adjustable second draft regulated value B of size is set to cooling down the distance between wind inlet 212 upwards, so as to pass through joint
The first draft regulated value A and the second draft regulated value B size are controlled, to control the draft size to environment cold wind, and then is controlled
The air inflow of environment cold wind processed.
It can not only be realized for flue gas according to the smoke exhaust fan 200 for gas heater of the utility model embodiment
Strong pump drainage put, and the radiating to motor can be realized, with simple in construction, cost is low, good heat dissipation effect, service life
Grow, cool down the advantages of wind draft is adjustable.
Below with reference to the accompanying drawings the smoke exhaust fan for gas heater according to the utility model specific embodiment is described
200。
As Figure 1-Figure 4, machine is included according to the smoke exhaust fan 200 for gas heater of the utility model embodiment
Shell 210, impeller 220, dividing plate 230 and motor 240.
Further, as shown in figure 3, cooling wind inlet 212 is that varus is lateral opening, the second draft regulated value B is motor
The distance between 240 inner face of in-flanges in its axial direction with cooling down wind inlet 212.
Specifically, the first draft regulated value A is timing, represents that the radius of cooling wind inlet 212 is more than the outer of motor 240
The maximum radius of profile;When first draft regulated value A is bears, represent that the maximum radius of the outline of motor 240 is more than cooling wind
The radius of import 212.
Second draft regulated value B is timing, represents that motor 240 is located at outside casing 210;Second draft regulated value B is negative
When, represent that motor 240 is located inside casing 210.
Wherein, when the first draft regulated value A is bears, the second draft regulated value B only can be just, to be taken out by regulation second
The size of power regulated value B size control cooling wind draft.
When the first draft regulated value A is timing, it just can also be negative that the second draft regulated value B, which both can be, pass through regulation
The size of first draft regulated value A size control cooling wind draft.
Alternatively, the relative position of dividing plate 230 and impeller 220 is fixed, i.e., dividing plate 230 is fixedly mounted in impeller 220, with
Dividing plate 230 is rotated with impeller 220, thereby guarantee that the stability of impeller 220 and dividing plate 230, so as to ensure dividing plate 230 to high temperature
The isolation effect of flue gas.
In some specific embodiments of the present utility model, as shown in Fig. 2 dividing plate 230 is the shape adaptation with impeller 220
Annular plate, the overall diameter R0 of dividing plate 230 and the overall diameter R1 of impeller 220 ratio are 1/3~1, it is possible thereby to further
The isolation effect to high-temperature flue gas is improved, to reduce the temperature rise of motor 240, while reducing the physical dimension of smoke exhaust fan 200.
Advantageously, as shown in Figure 3 and Figure 4, in the axial direction of impeller 220, the distance between dividing plate 230 and smoking port 221
More than the distance between dividing plate 230 and inlet scoop 222, that is to say, that dividing plate 230 is relative to smoking port 221 more adjacent to air draught
Mouth 222.So can ensure to environment cold wind to the cooling effect of motor 240 in the case of, it is ensured that the discharge efficiency of flue gas
And discharge capacity.
In some specific embodiments of the present utility model, as shown in Fig. 2 casing 210 has volute structure, i.e. casing
210 be substantially in snail hull shape, and gas approach 211 is located on the end face of casing 210 and corresponding with the position of smoking port 221, is cooled down
Wind inlet 212 is located on the other end of casing 210 and corresponding with the position of inlet scoop 222, exhanst gas outlet 213 it is opening up.
It is possible thereby to facilitate gas approach 211 to suck high-temperature flue gas and convenient cooling wind inlet 212 suction environment cold wind, beneficial to Smoke
The installation of machine 200 and high-temperature flue gas are isolated with motor 240, and the high-temperature flue gas and environment cold wind that are inhaled into can be swimmingly
Discharged by exhanst gas outlet 213.
Further, as shown in Fig. 2 the distance between inner peripheral surface of the outer peripheral face of impeller 220 and casing 210 is along casing
210 circumference gradually increases towards the direction of exhanst gas outlet 213, and impeller 220 is located at exhanst gas outlet adjacent to the inner peripheral surface of casing 210
The opposite side positioned at exhanst gas outlet 213 of the inner peripheral surface of 213 side and remote casing 210.The high-temperature flue gas and ring being inhaled into
Border cold wind is sent to casing 210 by the outer peripheral face of impeller 220, and the week under the guiding of the inner peripheral surface in casing 210 along casing 210
To motion, finally by the discharge of exhanst gas outlet 213, the spacing of impeller 220 and casing 210, which is set, combines high-temperature flue gas and environment
The small part spacing of air volume adjustment of the cold wind in whole discharge process, i.e. air quantity is small, and the big part spacing of air quantity is big, so as to protect
Demonstrate,prove the fluency of high-temperature flue gas and environment cold wind in whole discharge process.
Below with reference to the accompanying drawings the smoke evacuation system 30 for gas heater according to the utility model embodiment is described.
As shown in Figure 1-Figure 3, collection is included according to the smoke evacuation system 30 for gas heater of the utility model embodiment
Petticoat pipe 100 and smoke exhaust fan 200.
Exhaust fume collecting hood 100 is used to carry out rectification to flue gas.Smoke exhaust fan 200 is used to guide the flue gas in exhaust fume collecting hood 100 to discharge,
Smoke exhaust fan 200 be arranged on exhaust fume collecting hood 100 on, for example casing 210 be arranged on exhaust fume collecting hood 100 on, gas approach 211 towards collection cigarette
To suck high-temperature flue gas when motor 240 run inside cover 100, cool down wind inlet 212 towards outside exhaust fume collecting hood 100 with motor
Environment cold wind is sucked during 240 operation.
According to the smoke evacuation system 30 for gas heater of the utility model embodiment, by using new according to this practicality
The smoke exhaust fan 200 for gas heater of type above-described embodiment, with simple in construction, cost is low, good heat dissipation effect, is used
Long lifespan, the advantages of motor cooling effectiveness is adjustable.
Below with reference to the accompanying drawings gas heater 1 according to the utility model embodiment is described.
As shown in figure 1, including heat-exchange system 10, combustion system 20 according to the gas heater 1 of the utility model embodiment
With smoke evacuation system 30.
Combustion system 20 is heated for exchanging hot systems 10.Smoke evacuation system 30 is used for what burning system of discharging 20 was produced
Flue gas.
According to the gas heater 1 of the utility model embodiment, by using according to the utility model above-described embodiment
For the smoke evacuation system 30 of gas heater, with simple in construction, cost is low, service life length, motor cooling effectiveness is adjustable etc.
Advantage.
Further, as shown in figure 1, gas heater 1 also includes combustion heat-exchange cavity 40, heat-exchange system 10 and burning are
System 20 is located in combustion heat-exchange cavity 40, and exhaust fume collecting hood 100 is arranged on the top of combustion heat-exchange cavity 40.So it can not only reduce
The loss of heat, and flue gas can be avoided to scatter to the inside of gas heater 1, it is ensured that smoke exhaust effect.
According to other compositions of the gas heater 1 of the utility model embodiment and operation for ordinary skill
All it is known for personnel, is not detailed herein.
In description of the present utility model, it is to be understood that term " " center ", " longitudinal direction ", " transverse direction ", " length ", " width
Degree ", " thickness ", " on ", " under ", "front", "rear", "left", "right", " vertical ", " level ", " top ", " bottom " " interior ", " outer ", " suitable
The orientation or position relationship of the instruction such as hour hands ", " counterclockwise " are based on orientation shown in the drawings or position relationship, merely to just
Described in description the utility model with simplified, rather than indicate or imply that the device or element of meaning must be with specific sides
Position, with specific azimuth configuration and operation, therefore it is not intended that to limitation of the present utility model.
In addition, term " first ", " second " are only used for describing purpose, and it is not intended that indicating or implying relative importance
Or the implicit quantity for indicating indicated technical characteristic.Thus, define " first ", the feature of " second " can express or
Implicitly include one or more this feature.In description of the present utility model, " multiple " are meant that at least two, example
Such as two, three etc., unless otherwise specifically defined.
In the utility model, unless otherwise clearly defined and limited, term " installation ", " connected ", " connection ", " Gu
It is fixed " etc. term should be interpreted broadly, for example, it may be fixedly connected or be detachably connected, or integrally;Can be
Mechanically connect or electrically connect;Can be joined directly together, can also be indirectly connected to by intermediary, can be two
The connection of element internal or the interaction relationship of two elements.For the ordinary skill in the art, can basis
Concrete condition understands concrete meaning of the above-mentioned term in the utility model.
In the description of this specification, reference term " one embodiment ", " some embodiments ", " example ", " specifically show
The description of example " or " some examples " etc. means to combine specific features, structure, material or the spy that the embodiment or example are described
Point is contained at least one embodiment of the present utility model or example.In this manual, to the schematic table of above-mentioned term
State and be necessarily directed to identical embodiment or example.Moreover, specific features, structure, material or the feature of description can be with
Combined in an appropriate manner in any one or more embodiments or example.In addition, those skilled in the art can be by
Not be the same as Example or example described in this specification are engaged and combined.
Although embodiment of the present utility model has been shown and described above, it is to be understood that above-described embodiment is
Exemplary, it is impossible to it is interpreted as to limitation of the present utility model, one of ordinary skill in the art is in scope of the present utility model
It is interior above-described embodiment to be changed, changed, replaced and modification.