CN208330814U - Speed measuring device, blower fan structure and circulating fluidized bed boiler systems - Google Patents
Speed measuring device, blower fan structure and circulating fluidized bed boiler systems Download PDFInfo
- Publication number
- CN208330814U CN208330814U CN201820539243.6U CN201820539243U CN208330814U CN 208330814 U CN208330814 U CN 208330814U CN 201820539243 U CN201820539243 U CN 201820539243U CN 208330814 U CN208330814 U CN 208330814U
- Authority
- CN
- China
- Prior art keywords
- measuring device
- speed measuring
- gear ring
- ring
- speed
- 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
- Fluidized-Bed Combustion And Resonant Combustion (AREA)
Abstract
The utility model provides a kind of speed measuring device, blower fan structure and circulating fluidized bed boiler systems, wherein speed measuring device is used to measure the rotating speed of transmission shaft of fluid coupling, comprising: gear ring, gear ring are rotated for being set in transmission shaft with transmission shaft；Detecting element, detecting element are oppositely arranged with gear ring, to detect the revolving speed of gear ring, and are sent out the electric signal of the rotary speed information containing gear ring；Display element, display element are used to receive electric signal and show the rotary speed information of gear ring.The measurement accuracy that the utility model solves speed measuring device in the prior art is low, and the actual speed deviation of blower is big, cause staff that can not detect accurate rotation speed of fan, thus the problem of secondary air flow cannot be accurately controlled, affect the efficiency of combustion of circulating fluidized bed boiler.
Description
Technical field
The utility model relates to fan speed measurement technical fields, in particular to a kind of speed measuring device, blower fan structure and follow
Ring fluidized bed boiler systems.
Background technique
The circulating fluidized bed boiler of steam power plant in normal work production needs that its Secondary Air fluid coupling is arranged
Speed measuring device, so that staff controls secondary air flow by detection blower fan revolving speed.
The existing speed measuring device being arranged on Secondary Air fluid coupling is usually by tachometric survey secondary instrument, hall sensing
The compositions such as device, measurement object of reference, and the screw that object of reference is welded on the transmission shaft of fluid coupling is measured, it is such
Fluid coupling unreasonable structure, Frequent Troubles after coming into operation, and also the measurement accuracy of existing speed measuring device is low, with blower
Actual speed deviation it is big, cause staff that can not detect accurate rotation speed of fan, to cannot accurately control secondary
Air quantity affects the efficiency of combustion of circulating fluidized bed boiler.
Utility model content
The main purpose of the utility model is to provide a kind of speed measuring device, blower fan structure and circulating fluidized bed boiler systems
System, it is low with the measurement accuracy for solving speed measuring device in the prior art, and the actual speed deviation of blower is big, leads to staff
It can not detect accurate rotation speed of fan, so that secondary air flow cannot be accurately controlled, affect the combustion of circulating fluidized bed boiler
The problem of burning efficiency.
To achieve the goals above, one aspect according to the present utility model provides a kind of speed measuring device, for measuring
The rotating speed of transmission shaft of fluid coupling, comprising: gear ring, gear ring are rotated for being set in transmission shaft with transmission shaft；Inspection
Element is surveyed, detecting element is oppositely arranged with gear ring, to detect the revolving speed of gear ring, and is sent out the revolving speed containing gear ring
The electric signal of information；Display element, display element are used to receive electric signal and show the rotary speed information of gear ring.
Further, gear ring includes: ring body, and ring body is for being set in transmission shaft；Cutting teeth, cutting teeth are more
A, multiple cutting teeths are provided at circumferentially spaced around ring body in ring body.
Further, multiple cutting teeths are arranged on the outer circumferential surface of ring body.
Further, the number of multiple cutting teeths is more than or equal to 30 and is less than or equal to 90.
Further, ring body includes the first semi-ring and the second semi-ring detachably spliced, the first semi-ring and the second semi-ring
It is fastenedly connected by fastener.
Further, detecting element is magnetoresistive sensor, and magnetoresistive sensor is used to generate the inspection with the cooperation of cutting teeth magnetic strength
Survey magnetic field.
Further, detecting element and gear central spacer are arranged, and the spacing distance of the two is more than or equal to 0.5mm and is less than
Equal to 1mm.
Further, display element is intelligent revolution meter.
Another aspect according to the present utility model, provides a kind of blower fan structure, including blower, fluid coupling and tests the speed
Device, wherein blower carries out power output by fluid coupling, and fluid coupling has transmission shaft, and speed measuring device setting exists
On transmission shaft, speed measuring device is above-mentioned speed measuring device.
Another aspect according to the present utility model provides a kind of circulating fluidized bed boiler systems, including above-mentioned blower
Structure.
Using the technical solution of the utility model, since speed measuring device includes gear ring, detecting element and display element, tooth
Torus is used to be set in the transmission shaft of fluid coupling, and rotates with transmission shaft, so that the connection increased between the two is steady
Qualitative and rotation synchronism；Detecting element is oppositely arranged with gear ring, to detect the revolving speed of gear ring, in this way, passing through detection member
The revolving speed that part accurately measures gear ring just can reliably know the revolving speed of the transmission shaft of fluid coupling, to learn blower
Revolving speed, and then convenient for improving the efficiency of combustion of circulating fluidized bed boiler by the secondary air flow for controlling blower；In addition, detection member
Part can also be sent out the electric signal of the rotary speed information containing gear ring, and display element is for receiving electric signal and showing gear
The rotary speed information of ring.In this way, intuitively knowing rotation speed of fan convenient for operator, the property easy to use of speed measuring device is improved.
Detailed description of the invention
The accompanying drawings constituting a part of this application is used to provide a further understanding of the present invention, this is practical
Novel illustrative embodiments and their description are not constituteed improper limits to the present invention for explaining the utility model.
In the accompanying drawings:
Fig. 1 shows a kind of installation condition schematic diagram of the speed measuring device of alternative embodiment according to the present utility model；
Fig. 2 shows the structural schematic diagrams of the gear ring of the speed measuring device in Fig. 1.
Wherein, the above drawings include the following reference numerals:
10, gear ring；11, ring body；111, the first semi-ring；112, the second semi-ring；113, fastener；12, cutting teeth；
20, detecting element；30, display element.
Specific embodiment
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.Be to the description only actually of at least one exemplary embodiment below it is illustrative, never as to this is practical
Novel and its application or any restrictions used.Based on the embodiments of the present invention, those of ordinary skill in the art are not having
Every other embodiment obtained under the premise of creative work is made, is fallen within the protection scope of the utility model.
In order to which the measurement accuracy for solving speed measuring device in the prior art is low, and the actual speed deviation of blower is big, causes
Staff can not detect accurate rotation speed of fan, so that secondary air flow cannot be accurately controlled, affect recirculating fluidized bed
The problem of efficiency of combustion of boiler, the utility model provide a kind of speed measuring device, blower fan structure and circulating fluidized bed boiler system
System, wherein blower fan structure includes blower, fluid coupling and speed measuring device, and blower carries out power output by fluid coupling,
Fluid coupling has transmission shaft, and speed measuring device is arranged on transmission shaft, and speed measuring device is above-mentioned and following speed measuring device, follows
Ring fluidized bed boiler systems include above-mentioned blower fan structure.
As shown in Figure 1, the speed measuring device of the rotating speed of transmission shaft for measuring fluid coupling includes gear ring 10, detection member
Part 20 and display element 30, gear ring 10 rotate, detecting element 20 and gear ring for being set in transmission shaft with transmission shaft
10 are oppositely arranged, and to detect the revolving speed of gear ring 10, and are sent out the electric signal of the rotary speed information containing gear ring 10, display
Element 30 is used to receive electric signal and shows the rotary speed information of gear ring 10.
Since speed measuring device includes gear ring 10, detecting element 20 and display element 30, gear ring 10 is for being set in liquid
It on the transmission shaft of mechanical couple, and is rotated with transmission shaft, to increase connective stability between the two and rotation synchronism；
Detecting element 20 is oppositely arranged with gear ring 10, to detect the revolving speed of gear ring 10, in this way, accurately being surveyed by detecting element 20
The revolving speed of amount gear ring 10 just can reliably know the revolving speed of the transmission shaft of fluid coupling, thus learn rotation speed of fan, into
And convenient for improving the efficiency of combustion of circulating fluidized bed boiler by the secondary air flow for controlling blower；In addition, detecting element 20 is also
It can be sent out the electric signal of the rotary speed information containing gear ring 10, display element 30 is for receiving electric signal and showing gear
The rotary speed information of ring 10.In this way, intuitively knowing rotation speed of fan convenient for operator, the easy to use of speed measuring device is improved
Property.
As depicted in figs. 1 and 2, gear ring 10 includes ring body 11 and cutting teeth 12, wherein ring body 11 is for being set in
On transmission shaft, cutting teeth 12 be it is multiple, multiple cutting teeths 12 are provided at circumferentially spaced around ring body 11 in ring body 11.In this way,
The revolving speed of accurately measure gear ring 10 is just capable of in detecting element 20 and the induction cooperation of multiple rotationally cutting teeths 12.
As depicted in figs. 1 and 2, for the ease of being fabricated to gear ring 10, to reduce the entirety of speed measuring device
Cost is fabricated, multiple cutting teeths 12 are arranged on the outer circumferential surface of ring body 11.
Optionally, the number of multiple cutting teeths 12 is more than or equal to 30 and is less than or equal to 90.In this way, by reasonably right
The structure optimization of gear ring 10 just can make gear ring 10 be adapted to the transmission shaft for being installed on the fluid coupling of different structure size
On, and pass through the specific number of optimizing incision tooth 12, to improve the measurement accuracy to 10 revolving speed of gear ring, and then accurately obtain
Know rotation speed of fan.
As shown in Fig. 2, in order to enable the convenient transmission shaft with fluid coupling of gear ring 10 carries out assembly or disassembly, ring sheet
Body 11 includes the first semi-ring 111 and the second semi-ring 112 detachably spliced, and the first semi-ring 111 and the second semi-ring 112 pass through fastening
Part 113 is fastenedly connected.In this way, fastener 113 can tightly embrace the first semi-ring 111 for making splicing and the second semi-ring 112
The transmission shaft of tight fluid coupling, to improve the connective stability between gear ring 10 and the transmission shaft of fluid coupling.
Optionally, in application, detecting element 20 is magnetoresistive sensor, and magnetoresistive sensor is for generating and 12 magnetic of cutting teeth
Feel the detection magnetic field of cooperation.
It should be noted that detecting element 20 and the interval of gear ring 10 are arranged, and two in the alternative embodiment of the application
The spacing distance of person is more than or equal to 0.5mm and is less than or equal to 1mm.This preferred spacing distance range is conducive to improve to gear
The precision of 10 tachometric survey of ring.
Optionally, display element 30 is intelligent revolution meter.
It should be noted that the speed measuring device of the application is mounted on the fluid power of the blower fan structure of circulating fluidized bed boiler systems
On the transmission shaft of coupler, the revolving speed of blower is accurately reflected, and error can reach ± 2rpm, reach desired effect,
Meet production control to require, ensure that the maximization of burning in circulating fluid bed boiler benefit.
It should be noted that term used herein above is merely to describe specific embodiment, and be not intended to restricted root
According to the illustrative embodiments of the application.As used herein, unless the context clearly indicates otherwise, otherwise singular
Also it is intended to include plural form, additionally, it should be understood that, when in the present specification using term "comprising" and/or " packet
Include " when, indicate existing characteristics, step, operation, device, component and/or their combination.
Unless specifically stated otherwise, positioned opposite, the digital table of the component and step that otherwise illustrate in these embodiments
Up to the unlimited the scope of the utility model processed of formula and numerical value.Simultaneously, it should be appreciated that for ease of description, each shown in attached drawing
The size of a part is not to draw according to actual proportionate relationship.For skill known to person of ordinary skill in the relevant
Art, method and apparatus may be not discussed in detail, but in the appropriate case, and the technology, method and apparatus should be considered as awarding
Weigh part of specification.In shown here and discussion all examples, any occurrence should be construed as merely example
Property, not as limitation.Therefore, the other examples of exemplary embodiment can have different values.It should also be noted that similar
Label and letter similar terms are indicated in following attached drawing, therefore, once be defined in a certain Xiang Yi attached drawing, then with
In attached drawing afterwards do not need that it is further discussed.
In the description of the present invention, it should be understood that the noun of locality such as " front, rear, top, and bottom, left and right ", " laterally,
Vertically, vertically, it is horizontal " and " pushing up, bottom " etc. indicated by orientation or positional relationship be normally based on orientation or position shown in the drawings
Relationship is set, is merely for convenience of describing the present invention and simplifying the description, in the absence of explanation to the contrary, these nouns of locality
Do not indicate that and imply that signified device or element must have a particular orientation or be constructed and operated in a specific orientation, because
This should not be understood as the limitation to scope of protection of the utility model；The noun of locality " inside and outside " refers to the wheel relative to each component itself
Wide is inside and outside.
For ease of description, spatially relative term can be used herein, as " ... on ", " ... top ",
" ... upper surface ", " above " etc., for describing such as a device shown in the figure or feature and other devices or spy
The spatial relation of sign.It should be understood that spatially relative term is intended to comprising the orientation in addition to device described in figure
Except different direction in use or operation.For example, being described as if the device in attached drawing is squeezed " in other devices
It will be positioned as " under other devices or construction after part or construction top " or the device of " on other devices or construction "
Side " or " under other devices or construction ".Thus, exemplary term " ... top " may include " ... top " and
" in ... lower section " two kinds of orientation.The device can also be positioned with other different modes and (is rotated by 90 ° or in other orientation), and
And respective explanations are made to the opposite description in space used herein above.
In addition, it should be noted that, limiting components using the words such as " first ", " second ", it is only for be convenient for
Corresponding components are distinguished, do not have Stated otherwise such as, there is no particular meanings for above-mentioned word, therefore should not be understood as to this
The limitation of utility model protection range.
It should be noted that term used herein above is merely to describe specific embodiment, and be not intended to restricted root
According to the illustrative embodiments of the application.As used herein, unless the context clearly indicates otherwise, otherwise singular
Also it is intended to include plural form, additionally, it should be understood that, when in the present specification using term "comprising" and/or " packet
Include " when, indicate existing characteristics, step, work, device, component and/or their combination.
It should be noted that the description and claims of this application and term " first " in above-mentioned attached drawing, "
Two " etc. be to be used to distinguish similar objects, without being used to describe a particular order or precedence order.It should be understood that using in this way
Data be interchangeable under appropriate circumstances, so that presently filed embodiment described herein can be in addition to illustrating herein
Or the sequence other than those of description is implemented.
The above descriptions are merely preferred embodiments of the present invention, is not intended to limit the utility model, for this
For the technical staff in field, various modifications and changes may be made to the present invention.It is all in the spirit and principles of the utility model
Within, 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 speed measuring device, for measuring the rotating speed of transmission shaft of fluid coupling characterized by comprising
Gear ring (10), the gear ring (10) rotate for being set in the transmission shaft, and with the transmission shaft；
Detecting element (20), the detecting element (20) is oppositely arranged with the gear ring (10), to detect the gear ring
(10) revolving speed, and it is sent out the electric signal of the rotary speed information containing the gear ring (10)；
Display element (30), the display element (30) are used to receive the electric signal and show the revolving speed of the gear ring (10)
Information.
2. speed measuring device according to claim 1, which is characterized in that the gear ring (10) includes:
Ring body (11), the ring body (11) is for being set in the transmission shaft；
Cutting teeth (12), the cutting teeth (12) are multiple, circumferential direction of the multiple cutting teeth (12) around the ring body (11)
It is arranged at intervals on the ring body (11).
3. speed measuring device according to claim 2, which is characterized in that the multiple cutting teeth (12) is arranged in the ring sheet
On the outer circumferential surface of body (11).
4. speed measuring device according to claim 2, which is characterized in that the number of the multiple cutting teeth (12) is more than or equal to
30 and be less than or equal to 90.
5. speed measuring device according to claim 2, which is characterized in that the ring body (11) includes detachably spliced
One semi-ring (111) and the second semi-ring (112), first semi-ring (111) and second semi-ring (112) pass through fastener
(113) it is fastenedly connected.
6. speed measuring device according to claim 2, which is characterized in that the detecting element (20) is magnetoresistive sensor, institute
Magnetoresistive sensor is stated for generating the detection magnetic field with the cooperation of the cutting teeth (12) magnetic strength.
7. speed measuring device according to claim 6, which is characterized in that the detecting element (20) and the gear ring (10)
Interval setting, and the spacing distance of the two is more than or equal to 0.5mm and is less than or equal to 1mm.
8. speed measuring device according to claim 1, which is characterized in that the display element (30) is intelligent revolution meter.
9. a kind of blower fan structure, which is characterized in that including blower, fluid coupling and speed measuring device, wherein the blower passes through
The fluid coupling carries out power output, and the fluid coupling has transmission shaft, and the speed measuring device is arranged in the biography
On moving axis, the speed measuring device is speed measuring device described in any item of the claim 1 to 8.
10. a kind of circulating fluidized bed boiler systems, which is characterized in that including the blower fan structure described in claim 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820539243.6U CN208330814U (en) | 2018-04-16 | 2018-04-16 | Speed measuring device, blower fan structure and circulating fluidized bed boiler systems |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820539243.6U CN208330814U (en) | 2018-04-16 | 2018-04-16 | Speed measuring device, blower fan structure and circulating fluidized bed boiler systems |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208330814U true CN208330814U (en) | 2019-01-04 |
Family
ID=64781544
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820539243.6U Active CN208330814U (en) | 2018-04-16 | 2018-04-16 | Speed measuring device, blower fan structure and circulating fluidized bed boiler systems |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208330814U (en) |
-
2018
- 2018-04-16 CN CN201820539243.6U patent/CN208330814U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105127735A (en) | Installation aligning method for shafting | |
| CN102997887A (en) | Method and device for multi-dimensional detection of angle sensor | |
| CN104122172A (en) | Double-cylinder rotary viscosimeter and using method thereof | |
| CN101532854A (en) | Detecting device for swirl flowmeter | |
| CN208330814U (en) | Speed measuring device, blower fan structure and circulating fluidized bed boiler systems | |
| CN203824546U (en) | Device for calibrating blade tip gap sensor | |
| CN109764924A (en) | Wide working condition high precision intelligent flow meter based on neural network model | |
| CN102564912B (en) | Dust concentration detecting method and detector with gas velocity compensation | |
| CN202092687U (en) | Rotameter and flow sensing system | |
| CN207131527U (en) | A kind of horizontal hydraulic unit feedback of guide blade position device | |
| CN109990823A (en) | For detecting the detection device and detection method of photoelectric encoder precision | |
| CN2857021Y (en) | Combined rotation rate senser | |
| CN2864616Y (en) | Position detecting device for counter wheel rotation | |
| CN202048878U (en) | Moving angle measurer of air conditioner air door | |
| US11397101B2 (en) | Flow meter | |
| CN204831436U (en) | Rotatory detection device of diaphragm type gas table core | |
| CN209570343U (en) | A kind of precision speed reduction device high-precision comprehensive performance measurement structure | |
| CN211401147U (en) | Angular displacement sensor test equipment | |
| CN201837634U (en) | Passive rotation speed counting device | |
| CN201177636Y (en) | Calibrating apparatus for micro propeller current meter | |
| CN102662078A (en) | Multi-shaft type omni-directional airspeed sensor of helicopter | |
| CN207424259U (en) | Digitize three direction displacement measuring device | |
| CN201364341Y (en) | Fan speed measuring device | |
| CN109945909A (en) | A kind of encoder accuracy detection device | |
| CN112146714B (en) | Precise gas flowmeter |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |