CN207920915U - Spiral case, wind turbine and gas heater - Google Patents
Spiral case, wind turbine and gas heater Download PDFInfo
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- CN207920915U CN207920915U CN201820202353.3U CN201820202353U CN207920915U CN 207920915 U CN207920915 U CN 207920915U CN 201820202353 U CN201820202353 U CN 201820202353U CN 207920915 U CN207920915 U CN 207920915U
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- volute tongue
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Abstract
It includes impeller that the utility model, which provides a kind of spiral case, wind turbine and gas heater, wind turbine, and spiral case includes：Coaming plate；First side plate is arranged and is connect with coaming plate in one end of coaming plate；Second side plate, the other end being arranged in coaming plate are connect with coaming plate, and the cavity with exhaust vent is surrounded with the first side plate and coaming plate；Outlet air smoke pipe is arranged on coaming plate, is connected to exhaust vent；Coaming plate is provided with the volute tongue to cavity sunken inside at the position of exhaust vent, volute tongue extends to the other side of central point from the axis direction of a laterally closer exhaust vent of the central point of impeller, and the top of volute tongue is higher than the central point of impeller on the axis direction perpendicular to exhaust vent.The top of program volute tongue can reduce the flow separation degree above volute tongue at volute outlet higher than the central point of impeller, avoid the formation of larger unfavourable balance gradient, and the probability that the air-flow to fall off from impeller generates reflux in spiral case is substantially reduced, to effectively improve the airflow pressure of spiral case and efficiency and play the role of noise reduction.
Description
Technical field
The utility model is related to household appliance technical fields, more specifically, are related to a kind of spiral case, wind turbine and gas heater.
Background technology
Wind turbine is the key components and parts of forced-ventilated gas water heater, and blower fan structure and performance directly affect water heater performance.
And in forced-ventilated water heater, wind turbine is not only that burning provides enough oxygen, it is often more important that has toxic smoke by what is generated after burning
Gas is discharged.And the spiral case of wind turbine is will to leave the gas collection and water conservancy diversion of draught fan impeller, and simultaneously gradually drop the flow velocity of gas
It is low, so that a part of kinetic energy is become static pressure.And the fine or not flow that directly decide wind turbine of blower volute structure design, pressure, effect
The performances such as rate, noise.But the volute tongue of spiral case is all arranged shallower at present, so that gas flows back seriously at volute of blower,
And gas backstreaming seriously further causes the problems such as air quantity is small, efficiency is low, noise is high.
Therefore, the spiral case and the wind turbine comprising the spiral case and combustion gas that a kind of air quantity is big, efficient, noise is low how to be designed
Water heater becomes current urgent problem to be solved.
Utility model content
The utility model aims to solve at least one of the technical problems existing in the prior art.
For this purpose, a purpose of the utility model is, a kind of spiral case is provided.
Another purpose of the utility model is, provides a kind of wind turbine including above-mentioned spiral case.
The further object of the utility model is, provides a kind of gas heater including above-mentioned wind turbine.
To achieve the above object, the utility model first aspect embodiment provides a kind of spiral case, is used for wind turbine, the wind
Machine includes impeller, and specifically, the spiral case includes：Coaming plate；First side plate is arranged in one end of the coaming plate, with the coaming plate
Connection；The other end in the coaming plate is arranged in second side plate, is connect with the coaming plate, and second side plate and described first
Side plate and the coaming plate surround a cavity with exhaust vent；Outlet air smoke pipe is arranged on the coaming plate, connects with the exhaust vent
It is logical；Wherein, the coaming plate is provided with the volute tongue to the cavity sunken inside at the position of the exhaust vent, the volute tongue from
The axis direction of the one laterally closer exhaust vent of the central point of the impeller extends to the another of the central point of the impeller
Side, and the top of the volute tongue is higher than the central point of the impeller on the axis direction perpendicular to the exhaust vent.
The spiral case that embodiment according to the present utility model provides, including coaming plate and be arranged in the first side of coaming plate left and right ends
Plate and the second side plate and the outlet air smoke pipe be connected with exhaust vent, wherein coaming plate and the first side plate and the second side plate can surround one
Cavity structure with exhaust vent, to accommodate impeller.And outlet air smoke pipe is connected to exhaust vent, for flue gas and other gases
Discharge.And by being arranged the volute tongue being recessed inwardly at position of the coaming plate close to exhaust vent, and by volute tongue from the central point O of impeller
A laterally closer exhaust vent axis direction extend to impeller central point O the other side, and by the top of volute tongue vertical
In the central point O higher than impeller that the axis direction of exhaust vent is arranged, i other words the top position of volute tongue is along perpendicular to exhaust vent
The direction of axis extend to the central point O or more of impeller namely top position axis of the warp-wise close to exhaust vent of volute tongue
The center of impeller is crossed in direction, so that volute tongue is half side under impeller to extend to the upper half side of impeller, can be changed in this way
Become openings of sizes of the spiral case at volute tongue, reduces the flow separation degree at volute outlet above volute tongue, avoid shape
At larger unfavourable balance gradient, and the probability that the air-flow to fall off from impeller generates reflux in spiral case is greatly reduced, can effectively carried
Air quantity, wind pressure and the efficiency of high spiral case, while playing the role of reducing eddy current crack.
In addition, also there is following additional technical feature according to the spiral case that the utility model above-described embodiment provides：
In the above-mentioned technical solutions, it is preferable that the radius of the volute tongue is r, and the radius of the impeller is R, wherein r：R
Value be more than or equal to 0.149 be less than or equal to 0.155 or r：The value of R is equal to 0.152.
In the technical scheme, by rationally limiting the ratio between the radius r of volute tongue and the radius R of impeller, can make
The size of volute tongue and the size of impeller are mutually adapted, and so as to increase blocking effect of the volute tongue to air-flow, alleviate air-flow to snail
The percussion of tongue, to reduce the rotational noise of air-flow, so as to further increase the whole outlet wind of spiral case on the whole
Amount improves efficiency, reduces fan noise.Wherein, r：The value of R be preferably greater than or equal to 0.149 be less than or equal to 0.155, further it is excellent
Selection of land, r：The value of R is equal to 0.152.
In any of the above-described technical solution, it is preferable that the coaming plate includes：Collection section, one end of the collection section and institute
State one end connection of volute tongue；First diffuser is connect with the other end of the volute tongue, and to the exhaust vent from the volute tongue
Outside extend；Second diffuser is connect with the one end of the collection section far from the volute tongue, and with the first diffuser phase
To setting.
In those technical solutions, collection section is for collecting gas, and the first diffuser is used to expand the opening of exhaust vent
Area enters in centrifugal blower so as to effectively reducing gas and generates to increase the flowing space of the gas in spiral case air duct
Turbulent flow and reduce spiral case in air quantity attenuation, realize reduce fan noise purpose.
In any of the above-described technical solution, it is preferable that the folder between first diffuser and the axis of the exhaust vent
Angle is θ1, wherein 32 °≤θ1≤ 38 ° or θ1Equal to 35 °.
In those technical solutions, the diffusion angle by the way that the first diffuser is rationally arranged can make from volute of blower come out
High-speed flow is converted into the air-flow of high pressure, so as to reduce flow losses, increases the ability of wind turbine resistive drag force.And fan airflow
Noise is directly proportional to 6 powers of gas flow rate, therefore after diffusion, and the noise of gas flowing can be due to the reduction of gas flow rate
And reduce, the noise of product can be reduced in this way, improve the quality of product.
In any of the above-described technical solution, it is preferable that the volute tongue is arc-shaped, and first diffuser connects with the volute tongue
The one end connect and the volute tongue are tangent.
In those technical solutions, volute tongue, by tangent connection, can make the outlet air of spiral case with the first diffuser junction
Channel is more smooth, so as to keep outlet air more smooth without hindrance, thus the loss during wind flow can be reduced, to carry
High air quantity.
In any of the above-described technical solution, it is preferable that second diffuser is tilted towards from the collection section close to institute
The direction for stating the first diffuser extends, and the angle between second diffuser and the axis of the exhaust vent is θ2, wherein
17°≤θ2≤ 23 ° or θ2Equal to 20 °.
In those technical solutions, the diffusion angle by the way that the second diffuser is rationally arranged can further make from volute of blower
High-speed flow out is converted into the air-flow of high pressure, so as to further decrease flow losses, increases the energy of wind turbine resistive drag force
Power.And fan airflow noise is directly proportional to 6 powers of gas flow rate, therefore after diffusion, the noise of gas flowing can be due to
The reduction of gas flow rate and reduce, the noise of product can be reduced in this way, improve the quality of product.
In any of the above-described technical solution, it is preferable that first diffuser is along the axial direction of the exhaust vent
Length is L, and the radius of the impeller is R, wherein L：The value of R is more than or equal to 0.344 and is less than or equal to 0.356 or L：The value etc. of R
In 0.35.
In those technical solutions, by rationally limiting the ratio between the length L of the first diffuser and the radius R of impeller
Value, the size of the length and impeller that can make the first diffuser is mutually adapted, so as to further increase diffusion effect, with from
The performance indicators such as air quantity, wind speed, efficiency and the noise of spiral case are improved on the whole.It wherein, specifically, such as can be by L：The value of R is set
It sets in the range of being less than or equal to 0.356 more than or equal to 0.344, it is further preferred that can be by L：The value of R is arranged to 0.35.
In any of the above-described technical solution, it is preferable that the coaming plate is twist and/or the volute tongue is arc-shaped.
In those technical solutions, coaming plate twist can make the structure of coaming plate more reasonable, it is thus possible to from entirety
The performance indicators such as upper air quantity, wind speed, efficiency and the noise for improving spiral case.And volute tongue is arc-shaped that volute tongue can be made smoother, because
And resistance of the volute tongue to outlet air can be reduced while preventing wind from flowing back.
The embodiment of the utility model second aspect provides a kind of wind turbine, which includes impeller；Appoint with first aspect
The spiral case that one embodiment provides, the impeller are mounted in the spiral case.
The wind turbine that embodiment according to the present utility model provides, the spiral case with the offer of first aspect any embodiment, because
This, the embodiments of the present invention provide wind turbine have first aspect any embodiment provide spiral case all beneficial to imitate
Fruit, it is numerous to list herein.
The embodiment of the utility model third aspect provides a kind of gas heater, which includes first party
The wind turbine that any one of face embodiment provides.
The gas heater that embodiment according to the present utility model provides, the wind provided with second aspect any embodiment
Machine, therefore, the gas heater that the embodiments of the present invention provide have the wind turbine of second aspect any embodiment offer
Whole advantageous effects, it is numerous to list herein.
Wherein it is preferred to which the gas heater is forced-ventilated gas water heater, certain gas heater is alternatively other
The gas heater of structure.
Additional aspect and advantage according to the present utility model will provide in following description section, partly will be from following
Become apparent in description, or recognize by the practice of the utility model.
Description of the drawings
The above-mentioned and/or additional aspect and advantage of the utility model will in the description from combination following accompanying drawings to embodiment
Become apparent and is readily appreciated that, wherein：
Fig. 1 is the structural schematic diagram for the spiral case that embodiment according to the present utility model provides；
Fig. 2 is another structural schematic diagram for the spiral case that embodiment according to the present utility model provides；
Fig. 3 is the partial enlargement structural representation at the A for the spiral case that embodiment according to fig. 2 provides.
Wherein, the correspondence in Fig. 1 to Fig. 3 between reference numeral and component names is：
1 spiral case, 10 coaming plates, 102 collection sections, 104 volute tongues, 106 first diffusers, 108 second diffusers, 12 first sides
Plate, 14 second side plates, 16 exhaust vents, 18 outlet air smoke pipes, 2 impellers.
Specific implementation mode
In order to be more clearly understood that the above objects, features, and advantages of the utility model, below in conjunction with the accompanying drawings and have
The utility model is further described in detail in body embodiment.It should be noted that in the absence of conflict, this Shen
The feature in embodiment and embodiment please can be combined with each other.
Many details are elaborated in the following description in order to fully understand the utility model, still, this practicality
It is novel to be implemented different from mode described here using other, therefore, the scope of protection of the utility model not by
The limitation of following public specific embodiment.
Spiral case 1, wind turbine and combustion that one embodiment according to the present utility model provides are described referring to Fig. 1 to Fig. 3
Gas water heater.
As shown in Figure 1 to Figure 3, the utility model first aspect embodiment provides a kind of spiral case 1, is used for wind turbine, wind turbine
Including impeller 2, specifically, spiral case 1 includes coaming plate 10, the first side plate 12, the second side plate 14 and outlet air smoke pipe 18.Wherein, first
Side plate 12 is arranged in one end of coaming plate 10, is connect with coaming plate 10；The other end in coaming plate 10 is arranged in second side plate 14, with coaming plate
10 connections, and the second side plate 14 and the first side plate 12 and coaming plate 10 surround a cavity with exhaust vent 16；Outlet air smoke pipe 18 is set
It sets on coaming plate 10, is connected to exhaust vent 16；Wherein, coaming plate 10 is provided at the position of exhaust vent 16 to cavity sunken inside
Volute tongue 104, volute tongue 104 extends to impeller 2 from the axis direction of a laterally closer exhaust vent 16 of the central point of impeller 2
The other side of central point, and the top of volute tongue 104 is higher than the central point of impeller on the axis direction perpendicular to exhaust vent 16.
The spiral case 1 that embodiment according to the present utility model provides, including coaming plate 10 and be arranged in 10 left and right ends of coaming plate
First side plate 12 and the second side plate 14 and the outlet air smoke pipe 18 be connected with exhaust vent 16, wherein coaming plate 10 and the first side plate 12
A cavity structure with exhaust vent 16 can be surrounded with the second side plate 14, to accommodate impeller 2.And outlet air smoke pipe 18 and exhaust vent 16
Connection, the discharge for flue gas and other gases.And it is concaved by being arranged at the position of exhaust vent 16 in coaming plate 10
Sunken volute tongue 104, and volute tongue 104 is extended into leaf from the axis direction of a laterally closer exhaust vent 16 of the central point of impeller 2
The other side of the central point of wheel 2, and the top of volute tongue 104 is higher than leaf in the axis direction setting perpendicular to exhaust vent 16
The central point O of wheel 2, i other words the top position edge of volute tongue 104 extends to impeller 2 perpendicular to the direction of the axis of exhaust vent 16
Warp-wise crosses the center of impeller 2 close to the axis direction of exhaust vent 16 for central point O or more namely the top position of volute tongue 104,
So that volute tongue 104 is half side under impeller 2 to extend to the upper half side of impeller 2, spiral case 1 can be changed in this way in volute tongue
Openings of sizes at 104 is reduced close to 104 top of volute tongue close to the flow separation degree in 1 exit of spiral case, is avoided the formation of larger
Unfavourable balance gradient, and greatly reduce the probability for generating reflux in spiral case 1 from the air-flow that impeller 2 falls off, snail can be effectively improved
Air quantity, wind pressure and the efficiency of shell 1, while playing the role of reducing eddy current crack.
Wherein, specifically, as shown in Fig. 2, the top of volute tongue 104 is in the axis direction and impeller 2 perpendicular to exhaust vent 16
Central point O between have difference in height be h.
In the above embodiment, it is preferable that as shown in Figures 2 and 3, the radius of volute tongue 104 is r, and the radius of impeller 2 is R,
Wherein, r：The value of R is more than or equal to 0.149 and is less than or equal to 0.155 or r：The value of R is equal to 0.152.
It in this embodiment, can by rationally limiting the ratio between the radius r of volute tongue 104 and the radius R of impeller 2
The size and the size of impeller 2 for making volute tongue 104 are mutually adapted, and so as to increase blocking effect of the volute tongue 104 to air-flow, are delayed
Percussion of the air-flow to volute tongue 104 is solved, to reduce the rotational noise of air-flow, so as to further increase spiral case on the whole
1 whole outlet air quantity improves efficiency, reduces fan noise.Wherein, r：The value of R is preferably greater than or equal to 0.149 and is less than or equal to
0.155, it is further preferred that r：The value of R is equal to 0.152.
In any of the above-described embodiment, it is preferable that as shown in Figures 2 and 3, coaming plate 10 includes：Collection section 102, collection section
102 one end is connect with one end of volute tongue 104；First diffuser 106, connect with the other end of volute tongue 104, and from volute tongue 104
Place extends to the outside of exhaust vent 16；Second diffuser 108 is connect with the one end of collection section 102 far from volute tongue 104, and with
One diffuser 106 is oppositely arranged.
In those embodiments, collection section 102 is for collecting gas, and the first diffuser 106 is for expanding exhaust vent 16
Opening area enter centrifugal blower to increase the flowing space of the gas in 1 air duct of spiral case so as to effectively reduce gas
The turbulent flow and the air quantity attenuation in reduction spiral case 1 of interior generation, realize the purpose for reducing fan noise.
In any of the above-described embodiment, it is preferable that as shown in Figures 2 and 3, the axis of the first diffuser 106 and exhaust vent 16
Angle between line is θ1, wherein 32 °≤θ1≤ 38 ° or θ1Equal to 35 °.
In those embodiments, the diffusion angle by the way that the first diffuser 106 is rationally arranged can make to come out from volute of blower 1
High-speed flow be converted into the air-flow of high pressure, so as to reduce flow losses, increase the ability of wind turbine resistive drag force.And wind turbine gas
Flow noise is directly proportional to 6 powers of gas flow rate, therefore after diffusion, and the noise of gas flowing can be due to the drop of gas flow rate
It is low and reduce, the noise of product can be reduced in this way, improve the quality of product.
In any of the above-described embodiment, it is preferable that as shown in Figures 2 and 3, volute tongue 104 is arc-shaped, the first diffuser 106
The one end being connect with volute tongue 104 and volute tongue 104 are tangent.
In those embodiments, volute tongue 104 and 106 junction of the first diffuser can make spiral case 1 by tangent connection
Air-out passage is more smooth, so as to keep outlet air more smooth without hindrance, thus can reduce the loss during wind flow,
To improve air quantity.
In any of the above-described embodiment, it is preferable that as shown in Figures 2 and 3, the second diffuser 108 inclines from collection section 102
The direction of oblique close first diffuser 106 extends, and the angle between the second diffuser 108 and the axis of exhaust vent 16 is θ2,
Wherein, 17 °≤θ2≤ 23 ° or θ2Equal to 20 °.
In those embodiments, the diffusion angle by the way that the second diffuser 108 is rationally arranged can further make from wind turbine snail
The high-speed flow that shell 1 comes out is converted into the air-flow of high pressure, so as to further decrease flow losses, increases wind turbine resistive drag force
Ability.And fan airflow noise is directly proportional to 6 powers of gas flow rate, therefore after diffusion, the noise of gas flowing can be by
It is reduced in the reduction of gas flow rate, the noise of product can be reduced in this way, improve the quality of product.
In any of the above-described embodiment, it is preferable that as shown in Figures 2 and 3, axis of first diffuser 106 along exhaust vent 16
Length on direction is L, and the radius of impeller 2 is R, wherein L：The value of R is more than or equal to 0.344 and is less than or equal to 0.356 or L：R
Value be equal to 0.35.
In those embodiments, by rationally limiting the ratio between the length L of the first diffuser 106 and the radius R of impeller 2
Value, can be such that the length of the first diffuser 106 and the size of impeller 2 is mutually adapted, so as to further increase diffusion effect,
With performance indicators such as the air quantity, wind speed, efficiency and the noises that improve spiral case 1 on the whole.It wherein, specifically, such as can be by L：R's
Value, which is disposed greater than, to be less than or equal to equal to 0.344 in the range of 0.356, it is further preferred that can be by L：The value of R is arranged to
0.35。
In any of the above-described embodiment, it is preferable that as depicted in figs. 1 and 2, coaming plate 10 twist, and/or such as Fig. 1 and
Shown in Fig. 2, volute tongue 104 is arc-shaped.
In those embodiments, coaming plate 10 twist can make the structure of coaming plate 10 more reasonable, it is thus possible to from whole
The performance indicators such as air quantity, wind speed, efficiency and the noise of spiral case 1 are improved on body.And volute tongue 104 it is arc-shaped can make volute tongue 104 compare
It is smoother, it is thus possible to while preventing wind from flowing back, to reduce resistance of the volute tongue 104 to outlet air.
As shown in Figure 1 to Figure 3, the embodiment of the utility model second aspect provides a kind of wind turbine, which includes leaf
Wheel 2；The spiral case 1 provided with any one of first aspect embodiment, impeller 2 are mounted in spiral case 1.
The wind turbine that embodiment according to the present utility model provides, the spiral case 1 with the offer of first aspect any embodiment, because
This, the embodiments of the present invention provide wind turbine have first aspect any embodiment provide spiral case 1 all beneficial to imitate
Fruit, it is numerous to list herein.
The embodiment of the utility model third aspect provides a kind of gas heater (not shown), the gas and hot water
Device includes the wind turbine that any one of first aspect embodiment provides.
The gas heater that embodiment according to the present utility model provides, the wind provided with second aspect any embodiment
Machine, therefore, the gas heater that the embodiments of the present invention provide have the wind turbine of second aspect any embodiment offer
Whole advantageous effects, it is numerous to list herein.
Wherein it is preferred to which gas heater is forced-ventilated gas water heater, certain gas heater is alternatively other structures
Gas heater.
In the description of this specification, the orientation or positional relationship of the instructions such as term "inner", "outside" is based on shown in attached drawing
Orientation or positional relationship, be merely for convenience of describing the present invention and simplifying the description, do not indicate or imply the indicated
Device or element must have a particular orientation, with specific azimuth configuration and operation, therefore should not be understood as new to this practicality
The limitation of type；Term " connection ", " installation ", " fixation " etc. shall be understood in a broad sense, for example, " connection " may be a fixed connection,
It may be a detachable connection, or be integrally connected；It can be directly connected, it can also be indirectly connected through an intermediary.It is right
For those skilled in the art, it can understand that above-mentioned term in the present invention specific contains as the case may be
Justice.
In the description of this specification, the description of term " one embodiment ", " some embodiments ", " specific embodiment " etc.
Mean that particular features, structures, materials, or characteristics described in conjunction with this embodiment or example are contained at least the one of the utility model
In a embodiment or example.In the present specification, schematic expression of the above terms are not necessarily referring to identical embodiment
Or example.Moreover, the particular features, structures, materials, or characteristics of description can be in any one or more embodiments or example
In can be combined in any suitable manner.
The preferred embodiment that these are only the utility model, is not intended to limit the utility model, for this field
Technical staff for, various modifications and changes may be made to the present invention.Within the spirit and principle of the utility model,
Any modification, equivalent replacement, improvement and so on should be included within the scope of protection of this utility model.
Claims (10)
1. a kind of spiral case, it is used for wind turbine, the wind turbine to include impeller, which is characterized in that the spiral case includes：
Coaming plate；
First side plate is arranged in one end of the coaming plate, is connect with the coaming plate；
The other end in the coaming plate is arranged in second side plate, is connect with the coaming plate, and second side plate and first side
Plate and the coaming plate surround a cavity with exhaust vent；
Outlet air smoke pipe is arranged on the coaming plate, is connected to the exhaust vent；
Wherein, the coaming plate is provided with the volute tongue to the cavity sunken inside, the volute tongue at the position of the exhaust vent
The another of the central point of the impeller is extended to from the axis direction of a laterally closer exhaust vent of the central point of the impeller
Side, and the top of the volute tongue is higher than the central point of the impeller on the axis direction perpendicular to the exhaust vent.
2. spiral case according to claim 1, which is characterized in that
The radius of the volute tongue is r, and the radius of the impeller is R, wherein r：The value of R is less than or equal to more than or equal to 0.149
0.155 or r：The value of R is equal to 0.152.
3. spiral case according to claim 1, which is characterized in that the coaming plate includes：
Collection section, one end of the collection section are connect with one end of the volute tongue；
First diffuser is connect with the other end of the volute tongue, and is extended to the outside of the exhaust vent from the volute tongue；
Second diffuser is connect with the one end of the collection section far from the volute tongue, and is oppositely arranged with first diffuser.
4. spiral case according to claim 3, which is characterized in that
Angle between first diffuser and the axis of the exhaust vent is θ1, wherein 32 °≤θ1≤ 38 ° or θ1It is equal to
35°。
5. spiral case according to claim 3, which is characterized in that the volute tongue is arc-shaped, first diffuser with it is described
One end of volute tongue connection and the volute tongue are tangent.
6. spiral case according to claim 3, which is characterized in that
Second diffuser is tilted towards from the collection section to be extended close to the direction of first diffuser, and described second expands
It is θ to press the angle between section and the axis of the exhaust vent2, wherein 17 °≤θ2≤ 23 ° or θ2Equal to 20 °.
7. spiral case according to claim 3, which is characterized in that
Length of first diffuser on the axial direction of the exhaust vent is L, and the radius of the impeller is R, wherein L：
The value of R is more than or equal to 0.344 and is less than or equal to 0.356 or L：The value of R is equal to 0.35.
8. spiral case according to any one of claim 1 to 7, which is characterized in that
The coaming plate is twist and/or the volute tongue is arc-shaped.
9. a kind of wind turbine, which is characterized in that including：
Impeller；With
Such as spiral case described in any item of the claim 1 to 8, the impeller is mounted in the spiral case.
10. a kind of gas heater, which is characterized in that including wind turbine as claimed in claim 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820202353.3U CN207920915U (en) | 2018-02-06 | 2018-02-06 | Spiral case, wind turbine and gas heater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820202353.3U CN207920915U (en) | 2018-02-06 | 2018-02-06 | Spiral case, wind turbine and gas heater |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207920915U true CN207920915U (en) | 2018-09-28 |
Family
ID=63603279
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820202353.3U Active CN207920915U (en) | 2018-02-06 | 2018-02-06 | Spiral case, wind turbine and gas heater |
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| Country | Link |
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| CN (1) | CN207920915U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108954754A (en) * | 2018-10-24 | 2018-12-07 | 奥克斯空调股份有限公司 | air channel structure and air conditioner |
| CN109083851A (en) * | 2018-10-24 | 2018-12-25 | 奥克斯空调股份有限公司 | A kind of blower fan structure and air conditioner |
| CN112798359A (en) * | 2020-12-14 | 2021-05-14 | 威能(无锡)供热设备有限公司 | Air pressure sampling device, air pressure sampling device and fan assembly, and gas hot water equipment |
-
2018
- 2018-02-06 CN CN201820202353.3U patent/CN207920915U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108954754A (en) * | 2018-10-24 | 2018-12-07 | 奥克斯空调股份有限公司 | air channel structure and air conditioner |
| CN109083851A (en) * | 2018-10-24 | 2018-12-25 | 奥克斯空调股份有限公司 | A kind of blower fan structure and air conditioner |
| CN108954754B (en) * | 2018-10-24 | 2023-09-15 | 奥克斯空调股份有限公司 | Air duct structure and air conditioner |
| CN109083851B (en) * | 2018-10-24 | 2024-05-10 | 奥克斯空调股份有限公司 | Fan structure and air conditioner |
| CN112798359A (en) * | 2020-12-14 | 2021-05-14 | 威能(无锡)供热设备有限公司 | Air pressure sampling device, air pressure sampling device and fan assembly, and gas hot water equipment |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20221102 Address after: 241000 west side of 3 / F, No.5 office building, new energy and new materials gathering area, Fuzhou Road, Jiangbei District, Wuhu City, Anhui Province Patentee after: Wuhu Midea intelligent kitchen electricity Manufacturing Co.,Ltd. Address before: 241009 Wan Chun East Road, East District, Wuhu economic and Technological Development Zone, Anhui Patentee before: WUHU MIDEA KITCHEN AND BATH APPLIANCES MFG. Co.,Ltd. |