CN209557287U - The variable double air intake centrifugal blowers of one kind - Google Patents
The variable double air intake centrifugal blowers of one kind Download PDFInfo
- Publication number
- CN209557287U CN209557287U CN201920114303.4U CN201920114303U CN209557287U CN 209557287 U CN209557287 U CN 209557287U CN 201920114303 U CN201920114303 U CN 201920114303U CN 209557287 U CN209557287 U CN 209557287U
- Authority
- CN
- China
- Prior art keywords
- impeller
- air intake
- double air
- centrifugal blowers
- intake centrifugal
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Landscapes
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The utility model discloses the variable double air intake centrifugal blowers of one kind, and centrifugal blower setting includes a motor, and by the motor-driven shaft, main impeller is provided in the shaft, wherein, it is additionally provided with an accessory impeller in the shaft, can be rotated coaxially with the main impeller；An electromagnetic clutch is additionally provided between the shaft and the accessory impeller, whether for the controlled work for controlling the accessory impeller.Variable double air intake centrifugal blowers of the utility model are due to using the controllable electromagnetic clutch to accessory impeller, realize the major-minor impeller selection work of double air intake centrifugal blowers, the efficient operation region of double air intake centrifugal blowers is widened, the demand of operating condition complicated and changeable is better met, the model for reducing product line, reduces production cost.
Description
Technical field
The utility model relates to the improvement of a kind of variable double air intake centrifugal blowers and its method and system, more particularly to
, a kind of improvement of double air intake centrifugal blowers of variable-operation impeller number.
Background technique
Double air intake centrifugal blowers because its air quantity is big, workspace field width, low noise, structure are simple, run smoothly the features such as, more
Various industries are more widely applied to, this also requires double air intake centrifugal blower series to have wider array of flow-pressure limit,
Broader efficient operation region, to meet operating condition complicated and changeable.Such as central air-conditioning is divulged information Fresh air handling units, daytime and night
Evening, spring and summer and autumn and winter, environment temperature and humidity etc. all can be different to the requirement of the draught capacity of blower, and usually single blower is difficult to fit
Answer different environmental change requirements.Current double air intake centrifugal blowers are only to promote the air quantity of single blower at double work energy
Power, improves peak work capacity, does not also account for real-time or in due course variation issue utility model needed for environment.
In traditional double air intake centrifugal blower fan structures, air is usually to enter to be arranged two through two sides inlet box mouth and gas collector
The double-entry impeller of side is rotated by double-entry impeller and is done work, and is collected through spiral case, diffusion becomes high pressure gas and is centrifuged outflow, final stream
Enter working region.Wherein double-entry impeller is to fix coaxial synchronous rotation together, efficient operation region back-to-back by two impellers
It is relatively narrow, in product seriation design, extremely more models is needed to meet certain flow -- pressure limit demand is thus made
At the high of entire production cost.But for double air intake centrifugal blowers of a certain model, it can not many times pass through list
Double air intake centrifugal blowers of one model adapt to the demand of various environmental change situations.
Traditional double air intake centrifugal blowers are coaxially fixed together using two rotary blades, are driven by the same motor
Work, when blower work, the double air intake centrifugal blowers rotated coaxially can generally be rotated synchronously, and thus only one revolving speed is simultaneously
A corresponding performance curve, the region for imitating operation is relatively narrow, is not able to satisfy operating condition complicated and changeable many times.
Therefore, the existing technology needs to be improved and developed.
Utility model content
The purpose of this utility model is to provide the variable double air intake centrifugal blowers of one kind, for lacking for the above-mentioned prior art
It falls into, can make the blower that there are two performance curves in same rotational speed, to widen by changing blower running wheel number
The working region of blower.
The technical solution of the utility model is as follows:
The variable double air intake centrifugal blowers of one kind, setting includes a motor, and by the motor-driven shaft, described
Main impeller is provided in shaft, wherein be additionally provided with an accessory impeller in the shaft, can rotate coaxially with the main impeller；
An electromagnetic clutch is additionally provided between the shaft and the accessory impeller, for the controlled control accessory impeller work with
It is no.
Variable double air intake centrifugal blowers, wherein the main impeller and the accessory impeller are arranged in a spiral case, institute
Spiral case is stated from both-side opening, a wind collecting unit is each provided with, docks the air inlet of the main impeller and the accessory impeller respectively.
Variable double air intake centrifugal blowers, wherein corresponded on the spiral case outside the side wind collecting unit of the accessory impeller
Side is additionally provided with a check-valves.
Variable double air intake centrifugal blowers, wherein the motor uses variable-frequency motor.
Variable double air intake centrifugal blowers, wherein the frame for reinforcing support strength is additionally provided on the spiral case
Frame.
It is a kind of realize described in variable double air intake centrifugal blowers implementation method, a control is set in the control circuit of motor
System processed, and realize the following steps are included:
The energization of the electromagnetic clutch is controlled by control system, the accessory impeller rotates simultaneously with the main impeller；Or
Person
The power-off of the electromagnetic clutch is controlled by control system, the accessory impeller is not driven, the main impeller rotation.
The implementation method, wherein the main impeller and the accessory impeller are arranged in a spiral case, and the spiral case is from two
Side opening, is each provided with a wind collecting unit, docks the air inlet of the main impeller and the accessory impeller respectively；It is corresponding on the spiral case
On the outside of the side wind collecting unit of the accessory impeller, it is additionally provided with a check-valves；The electromagnetic clutch is being controlled in the control system
It while device is powered, controls the check-valves and opens, and while the control system controls electromagnetic clutch power-off,
Control the closure of check ring.
The implementation method, wherein the motor uses variable-frequency motor, and by the control system according to the electromagnetism
It controls whether the energization of clutch and is controlled using same motor frequency conversion.
A kind of control system of variable double air intake centrifugal blowers, wherein using any control method.
A kind of variable double air intake centrifugal blowers provided by the utility model, due to using the controllable electromagnetic to accessory impeller
Clutch realizes the major-minor impeller selection work of double air intake centrifugal blowers, has widened the efficient operation of double air intake centrifugal blowers
Region has better met the demand of operating condition complicated and changeable, reduces the model of product line, reduces production cost.
Detailed description of the invention
Fig. 1 is the section view signal of variable double air intake centrifugal blowers described in the utility model and its implementation preferred embodiment
Figure.
Fig. 2 is the spiral case signal of variable double air intake centrifugal blowers described in the utility model and its implementation preferred embodiment
Figure.
Fig. 3 is the side signal of variable double air intake centrifugal blowers described in the utility model and its implementation preferred embodiment
Figure.
Fig. 4 is that schematic diagram is cutd open in the side of A-A shown in Fig. 3.
Fig. 5 is the system block diagram schematic diagram of realization method and system described in the utility model.
Fig. 6 is the performance curve schematic diagram of the lower pair of air intake centrifugal blower of certain revolving speed of the prior art.
Fig. 7 is performance curve schematic diagram under certain exemplary revolving speed of variable double air intake centrifugal blowers described in the utility model.
Specific embodiment
The preferred embodiment of the utility model is described in detail below.
A kind of variable double air intake centrifugal blowers provided by the utility model and its method and system, as shown in Figure 1,
It, which is arranged, uses a motor 110, and by the shaft 111 of the motor 110 driving rotation, and is provided with master in the shaft 111
Impeller 112 and accessory impeller 113, whole installation quantity must be set according to the maximum drive ability of the motor 110.In the pair
An electromagnetic clutch 114 is correspondingly arranged between impeller 113 and shaft 111, it can the controlled work for controlling the accessory impeller 113
Whether, that is, whether controlled realization locking shaft 111 and accessory impeller 113.When the electromagnetic clutch 114 is powered,
Locking shaft 111 and the accessory impeller 113, then the accessory impeller 113 is just rotated synchronously and is worked with main impeller 112 at this time, no
Then accessory impeller 113 stops working.
Preferably to realize that the work of double air intake centrifugal blowers described in the utility model is realized, the control circuit of the motor
In be provided with corresponding control system, as shown in figure 5, the motor 110 of double air intake centrifugal blowers, by the control system
210 control, and control logic is preset in control circuit, for example, can according to actual environmental aspect, i.e., temperature and
The signal of humidity sensor, alternatively, judging whether to need to open according to the quantity etc. of the number of work of factory floor and starting machine
The work of dynamic accessory impeller 113: can more actual working condition carry out mode design and foundation, as long as in the driving of single impeller
(each impeller has maximum task driven ability according to its specification and model) within ability, so that it may control the electromagnetism
The disconnection of clutch, only main impeller work, at this time small air quantity operating condition operation.
And if the job requirement at scene meets or exceeds the ability to work of an impeller, it is controlled by the control system
The electromagnetic clutch is powered, and carries out driving work by two impellers.
Convenient for assembly to the product of entire centrifugal blower to realize, the main impeller 112 and the setting of the accessory impeller 113 exist
In one spiral case 120, as shown in Figure 2, Figure 3 and Figure 4, which forms air inlet entrance 121 from both-side opening, and in the snail
It is correspondingly arranged on wind collecting unit 122 within the air inlet entrance 121 of shell 120, docks the main impeller 112 and the accessory impeller respectively
113 air inlet 123.The wind collecting unit 122 and the air inlet 123 dock according to this, and shrink according to the bore of predetermined arc
Mode forms air intake passage.
On the outside of the side wind collecting unit of the correspondence accessory impeller 113, a check-valves is additionally provided on the spiral case 120
124, which has the function of one-way conduction, and by the control of the control system 210, in the electromagnetic clutch
When 114 energization, controls the check-valves 124 and open air intake passage, so as to the air inlet of the accessory impeller 113；And in the electromagnetism
When clutch 114 powers off, the control system 210 controls the check-valves 124 and closes, to prevent air in spiral case from institute
State the path leakage of accessory impeller 113.
The structure setting of the check-valves 124 can be set to be opened and closed using drive and control of electric machine, can also use unidirectional leaf
The mode of piece passively controls, and only the former is controlled more accurate, and working efficiency is higher.
In the utility model preferred embodiment, the motor 110 can use variable-frequency motor, in this way, in the control
It may be implemented to be adjusted within the peak work capacity of motor in system 210 processed, realize the change within the scope of matching herein
Frequency works, and adjusts the ability to work of motor.And when environmental working condition meets or exceeds the peak work capacity range of single impeller, institute
The variable frequency drive capability for stating motor can match the energization of the electromagnetic clutch 114, when accessory impeller 113 works, the control
System 210 processed can control the motor 110 still using same frequency control sequence, but due to main impeller and accessory lobes at this time
Wheel works at the same time, is equivalent to the frequency conversion ability of the control of motor 110, is double working efficiency under same frequency.In this way,
It is equivalent to be doubled to relax on year-on-year basis by the function curve of single impeller, thus with wider more accurate adaptation environmental working condition
Ability.Single, double impeller is adjusted and variable frequency adjustment is mutually indepedent, and cooperation makes to adjust wider deeper.
Double air intake centrifugal blowers can be packed by variable double air intake centrifugal blowers described in the utility model in formed product
In spiral case 120, air outlet 125 uses one outlet, as shown in figure 3, formed with market product similar to the molding machine of shape, it is convenient
Direct modular construction and installation in actual installation process.For the support strength for strengthening the spiral case and blower, described
The setting of on spiral case and its periphery uses frame structure 126, as shown in Figure 4.
In the preferred embodiment of utility model the utility model, a kind of circuit of variable double air intake centrifugal blowers is additionally provided
Control method is to realize in the control circuit of motor 110, mainly realizes for above-mentioned centrifugal fan device
Rate-determining steps include:
The energization of the electromagnetic clutch 114 is controlled by control system 210, so that the accessory impeller and the main impeller are same
Shi Xuanzhuan；Or the power-off of the electromagnetic clutch 114 is controlled by control system 210, the accessory impeller is not driven at this time, institute
State main impeller rotation.
Meanwhile the main impeller 112 and the accessory impeller 113 are arranged in the spiral case 120, the spiral case 120 from
Both-side opening is each provided with a wind collecting unit 122 in opening, dock respectively the main impeller 112 and the accessory impeller 113 into
Air port；It is corresponded on the spiral case 120 on the outside of the side wind collecting unit of the accessory impeller 113, is additionally provided with a check-valves 124；Institute
It states control system 210 to control the check-valves 124 while controlling the electromagnetic clutch 114 energization and open, and described
While control system 210 controls the electromagnetic clutch 114 power-off, controls the check-valves 124 and close.
The performance curve signal of variable double air intake centrifugal blowers described in the utility model is as shown in fig. 7, comparison is shown in fig. 6
Prior art performance curve is it is found that the efficient operation region that may be implemented of performance curve in the utility model is wider.Institute in figure
The efficient operation region shown is two sections of line meaning regions on flow-static pressure curve and flow-static pressure efficiency curve, refers to
The higher one section of operation interval of efficiency, since there is the double air intake centrifugal blowers of the utility model the selection of single impeller and bilobed wheel to drive
Flowing mode can adapt to more environmental working condition requirements to form more wide in range efficient operation region.Meanwhile this is practical
In the implementation method of the novel control system, the motor 110 uses variable-frequency motor, and by the control system 210
According to the electromagnetic clutch 114 energization whether, can control using same motor frequency conversion control, to make the utility model
The efficient operation region of double air intake centrifugal blowers can widen, and can preferably meet operating condition need complicated and changeable
It asks, reduces the serial model No. of product, reduce production cost.After using variable-frequency motor, the performance curve of the utility model
It can be the efficient operation region of single impeller and the efficient operation region deformation of bilobed wheel or offset, to make its efficient operation
It more widens in region.
It should be understood that for those of ordinary skills, it can be modified or changed according to the above description,
And all these modifications and variations all should belong to the protection scope of the appended claims for the utility model.
Claims (5)
1. the variable double air intake centrifugal blowers of one kind, setting includes a motor, and by the motor-driven shaft, at described turn
Main impeller is provided on axis, which is characterized in that be additionally provided with an accessory impeller in the shaft, can coaxially turn with the main impeller
It is dynamic；An electromagnetic clutch is additionally provided between the shaft and the accessory impeller, the work for the controlled control accessory impeller
Whether work.
2. variable double air intake centrifugal blowers according to claim 1, which is characterized in that the main impeller and the accessory impeller
It is arranged in a spiral case, the spiral case is each provided with a wind collecting unit from both-side opening, docks the main impeller and the pair respectively
The air inlet of impeller.
3. variable double air intake centrifugal blowers according to claim 2, which is characterized in that correspond to the accessory lobes on the spiral case
On the outside of the side wind collecting unit of wheel, it is additionally provided with a check-valves.
4. variable double air intake centrifugal blowers according to claim 3, which is characterized in that the motor uses variable-frequency motor.
5. variable double air intake centrifugal blowers according to claim 4, which is characterized in that be additionally provided with and be used on the spiral case
Reinforce the frame of support strength.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920114303.4U CN209557287U (en) | 2019-01-23 | 2019-01-23 | The variable double air intake centrifugal blowers of one kind |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920114303.4U CN209557287U (en) | 2019-01-23 | 2019-01-23 | The variable double air intake centrifugal blowers of one kind |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209557287U true CN209557287U (en) | 2019-10-29 |
Family
ID=68308912
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920114303.4U Active CN209557287U (en) | 2019-01-23 | 2019-01-23 | The variable double air intake centrifugal blowers of one kind |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209557287U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109555714A (en) * | 2019-01-23 | 2019-04-02 | 上海诺地乐通用设备制造有限公司 | The variable double air intake centrifugal blowers of one kind, realization method and system |
| KR20210131652A (en) * | 2020-04-24 | 2021-11-03 | 김종엽 | Blower with improved blowing efficiency |
-
2019
- 2019-01-23 CN CN201920114303.4U patent/CN209557287U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109555714A (en) * | 2019-01-23 | 2019-04-02 | 上海诺地乐通用设备制造有限公司 | The variable double air intake centrifugal blowers of one kind, realization method and system |
| KR20210131652A (en) * | 2020-04-24 | 2021-11-03 | 김종엽 | Blower with improved blowing efficiency |
| KR102352086B1 (en) * | 2020-04-24 | 2022-01-14 | 김종엽 | Blower with improved blowing efficiency |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN209557287U (en) | The variable double air intake centrifugal blowers of one kind | |
| CN104454567A (en) | High-power centrifugal fan with adjustable supply air rate | |
| CN201013638Y (en) | Double air-out blower fan | |
| CN109555714A (en) | The variable double air intake centrifugal blowers of one kind, realization method and system | |
| CN104832349B (en) | Hydraulic turbine with power compensation device | |
| US6508622B1 (en) | Axial fan with reversible flow direction | |
| CN202811428U (en) | Multi-blade centrifugal fan | |
| CN106152458B (en) | Cabinet air conditioner and air outlet control method of cabinet air conditioner | |
| CN207989363U (en) | A kind of air inlet and outlet is located at the ceiling type through-flow blower fan of homonymy | |
| CN206054382U (en) | A kind of spiral case and application have the centrifugal blower of the spiral case | |
| CN210832420U (en) | Comfortable and environment-friendly low-energy-consumption warm air and ventilation integrated machine | |
| CN210832408U (en) | Long-range efflux unit of amount of wind adjustable | |
| CN208871849U (en) | A kind of indoor heater | |
| CN113107874A (en) | Centrifugal contra-rotating air pump with axial air inlet at two ends | |
| CN208138204U (en) | Four sides air inlet volute structure | |
| JPS5949394A (en) | Operation control method of blower or pump | |
| CN207406436U (en) | A kind of wind power plant | |
| CN209244890U (en) | A kind of ceiling ventilating fan | |
| CN219390081U (en) | Combined fan | |
| CN2133697Y (en) | Wind fan with double-speed, double electrical machine | |
| CN201310475Y (en) | Reversible-type high-efficiency axial-flow blower | |
| CN217815062U (en) | Novel air conditioner water quantity bypass regulating valve | |
| CN209586753U (en) | Wind direction reversible fan structure | |
| CN213713549U (en) | Warmer with air door for switching air flow direction | |
| CN2486752Y (en) | Heagting fan |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 201806 Shanghai Jiading District Waigang town cleanergy Road No. 55 Patentee after: Yingfei Tongren fan Co., Ltd Address before: 201806 Shanghai Jiading District Waigang town cleanergy Road No. 55 Patentee before: SHANGHAI NAUTILUS GENERAL EQUIPMENT MANUFACTURING Co.,Ltd. |