CN207673594U - A kind of primary air fan Optimizing Configuration System - Google Patents
A kind of primary air fan Optimizing Configuration System Download PDFInfo
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- CN207673594U CN207673594U CN201820000418.6U CN201820000418U CN207673594U CN 207673594 U CN207673594 U CN 207673594U CN 201820000418 U CN201820000418 U CN 201820000418U CN 207673594 U CN207673594 U CN 207673594U
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Abstract
The utility model discloses a kind of primary air fan Optimizing Configuration Systems, including the centrifugal primary air fan of at least two, First air main pipe and the inlet baffle and outlet damper being arranged in before and after the centrifugal primary air fan, it is characterized in that, centrifugal primary air fan described at least two is connected in parallel, and the wind of the outlet damper converges into First air main pipe.A kind of primary air fan Optimizing Configuration System of the utility model uses multiple centrifugal primary air fans, and pass through the centrifugal primary air fan of start and stop, to meet the operation of unit difference coal pulverizer quantity, each centrifugal primary air fan under unit different load can be achieved can run in high efficient district, at the same time, the opposite security reliability for improving primary air system start and stop switchover operation.
Description
Technical field
The utility model is applied to power field more particularly to a kind of primary air fan Optimizing Configuration System.
Background technology
Currently, existing thermal power plant either uses unilateral or bilateral First air in the configuration of primary air fan system
Machine, it is contemplated that the wide load range variation of unit, pattern have been considered as axial fan mostly.This is primarily due to centrifuge
The characteristic of formula wind turbine is that high efficient district is very narrow, once leaving high efficient district operation, efficiency is significantly to decline.In contrast, axis
The characteristic of flow type fan may make wider range load relative efficiency, and after leaving its high efficient district, efficiency downward trend is relatively slow
With it is a little.With deepening continuously for thermal power plant energy-saving and emission-reduction work, unit has become in the performance driving economy of wide scope load
The emphasis of energy conservation, large-scale subsidiary engine are considered as the mode of frequency conversion to improve its economical operation mostly in underrun
Property, but for primary air fan, wind pressure, air quantity and load variations do not have homogeneity, therefore be also not suitable for using frequency conversion, if but
Frequency conversion cannot be used, when primary air fan is when non-efficient area is run, efficiency still relative drop is very big, such as rated load is made
For the design high efficiency point of primary air fan, efficiency can reach 88%, then in underrun, efficiency is then opposite to decline to a great extent,
40% load may drop to 60% or so, in this way, just causing primary air fan very uneconomical in actual moving process, in addition, axis
Flow type fan is easy to happen " stall " problem in low load region, influences the safety in operation of wind turbine and entire machine set system, and right
For the primary air fan system using bilateral axial-flow type, in startup or operational process, also it will produce because unilateral wind turbine tacks
And lead to " stall " problem of other side wind turbine.
In view of the prior art is poor using above-mentioned such as Economical Operation of Light-Loaded existing for axial flow primary fan, operation is steady
In place of the deficiencies of determining less reliable, the purpose of this utility model is to provide a kind of with high performance driving economy, high reliability
Primary air fan Optimizing Configuration System.
Invention content
The utility model provides a kind of primary air fan Optimizing Configuration System, including the centrifugal primary air fan of at least two, one
Secondary wind main pipe and the inlet baffle and outlet damper being arranged in before and after the centrifugal primary air fan, which is characterized in that at least 2
A centrifugal primary air fan is connected in parallel, and the wind of the outlet damper converges into First air main pipe.
Preferably, further include 1 axial flow primary fan, the axial flow primary fan is centrifugal described at least two
It is connected in series with before the inlet baffle of primary air fan.
Preferably, further include pressure fan and the pressure fan outlet damper positioned at pressure fan rear portion, it is centrifugal described at least two
The inlet baffle of primary air fan is connected in series with the pressure fan outlet damper.
Preferably, the pressure fan can be 2, after the pressure fan parallel connection with centrifugal First air described at least two
Machine is connected.
A kind of primary air fan Optimizing Configuration System provided by the utility model, mainly has the following advantages that：
1, the utility model is used as the configuration system of primary air fan using multiple centrifugal fans, centrifugal by start and stop
Primary air fan, to meet the operation of unit difference coal pulverizer quantity, it can be achieved that each centrifugal First air under unit different load
Machine can be run in high efficient district, and currently, centrifugal fan design efficiency itself is higher than axial fan design efficiency, because
This, for wide scope load operation, the operational efficiency of multiple centrifugal primary air fans will substantially be higher than axial-flow type First air
Machine.
2, the characteristic based on centrifugal fan itself, starting current is relatively small, starts safety and wants high；In addition, operation
The start and stop switching of multiple centrifugal primary air fans in the process, is also not present " stall " problem of underload or parallel running, operation
It is relatively reliable.
It is noted that the utility model can according to the coal pulverizer different number that unit is matched configure different number from
Whether core type primary air fan and centrifugal primary air fan system connect with secondary air system, before centrifugal primary air fan whether
Axial flow primary fan, the secondary air system of series connection low lift, which are one-sided configuration or double sided arrangements etc., has different combination sides
Formula.
The technique effect of the design of the utility model, concrete structure and generation is made furtherly below with reference to attached drawing
It is bright, to be fully understood from the purpose of this utility model, feature and effect.
Description of the drawings
Fig. 1, Fig. 2, Fig. 3, Fig. 4, Fig. 5, Fig. 6 are the system schematics of specific embodiment of the utility model；
It is marked in figure：
1、1’：Pressure fan A, pressure fan B；
2、2’：Pressure fan outlet damper；
3、4、5、6、7、9：Centrifugal primary air fan；
3’、4’、5’、6’、7’、9’：Centrifugal primary air fan inlet baffle；
3’’、4’’、 5’’、 6’’、7’’、9’’：Centrifugal primary air fan outlet damper；
8：Axial flow primary fan.
Specific implementation mode
Embodiment 1
By taking certain unit is using six coal pulverizer operations as an example, as shown in Figure 1, a kind of primary air fan optimization of the utility model
The specific embodiment of configuration system, it include pressure fan 1 and 1 ', pressure fan outlet damper 2 and 2 ', centrifugal primary air fan 3,4,
5,6, centrifugal primary air fan inlet baffle 3 ', 4 ', 5 ', 6 ' and outlet damper 3 ' ', 4 ' ', 5 ' ', 6 ' ' and First air main pipe.
Wherein, centrifugal primary air fan 3,4,6 can respectively meet the needs of coal pulverizer operation, and 5 capacity phase of centrifugal primary air fan
To big, three coal pulverizers while the needs of operation can be met.Each centrifugal primary air fan parallel connection is respectively set before and after wind turbine
Centrifugation primary air fan inlet baffle and outlet damper are set.Each centrifugal primary air fan goes out after one's intention as revealed in what one says is converged to enter First air mother
Pipe.
When unit starting or load variations, by the different centrifugal primary air fan of start and stop, different number coal-grinding can be met
The operating mode of machine operation then opens centrifugal primary air fan 3,4,6 for example, when the operation of three coal pulverizer quantity, and four coal-grindings
When machine quantity is run, then arbitrary two in centrifugal primary air fan 3,4,6 need to be only shut down, centrifugal primary air fan is then turned on
5, similarly, if six coal pulverizer operations, are all turned on centrifugal primary air fan 3,4,5,6.By provided by the utility model
Primary air fan Optimizing Configuration System is, it can be achieved that primary air fan can keep efficient in wide scope load, and centrifugal First air
Comparatively safe, reliable in machine start and stop and operational process, there is no starting current is big, underload or parallel running occur " stall " and ask
Topic etc..
Embodiment 2
By taking certain unit is using six coal pulverizer operations as an example, as shown in Fig. 2, a kind of primary air fan optimization of the utility model
The specific embodiment of configuration system, it include pressure fan 1 and 1 ', pressure fan outlet damper 2 and 2 ', centrifugal primary air fan 5,6,
7, centrifugal primary air fan inlet baffle 5 ', 6 ', 7 ' and outlet damper 5 ' ', 6 ' ', 7 ' ' and First air main pipe.Wherein, it centrifuges
Formula primary air fan 6 can meet the needs of coal pulverizer operation, and 7 relative capacity of centrifugal primary air fan is a little bigger, can meet two
The needs that coal pulverizer is run simultaneously, and 5 capacity relative maximum of centrifugal primary air fan can meet what three coal pulverizers were run simultaneously
It needs.Each centrifugal primary air fan parallel connection is respectively provided with centrifugation primary air fan inlet baffle and outlet before and after wind turbine
Baffle.Going out for each centrifugal primary air fan enters First air main pipe after one's intention as revealed in what one says is converged.
When unit starting or load variations, by the different centrifugal primary air fan of start and stop, different number coal-grinding can be met
The operating mode of machine operation then opens centrifugal primary air fan 6,7 for example, when three coal pulverizer quantity operations, and works as and be raised to by three
When four coal pulverizer quantity operations, then needs to shut down centrifugal primary air fan 7, be then turned on centrifugal primary air fan 5, similarly, when
When being raised to five coal pulverizer quantity operations by four, then centrifugal primary air fan 6 is shut down, centrifugal primary air fan 7 is opened, if six
Platform coal pulverizer is run, then is all turned on centrifugal primary air fan 5,6,7.Matched by primary air fan provided by the utility model optimization
System is set, it can be achieved that primary air fan can keep efficient in wide scope load, and centrifugal primary air fan start and stop and was run
Comparatively safe in journey, reliable, there is no starting current is big, " stall " problem etc. occurs for underload or parallel running.
Difference lies in lacked the centrifugal primary of two satisfactions, one coal pulverizer operation to the present embodiment with embodiment 1
Wind turbine, the more one centrifugal primary air fans that can meet the operation of two coal pulverizers.Investment is relatively low, but in different coal pulverizer numbers
When amount operation, switch step is relatively more.
Embodiment 3
By taking certain unit is using six coal pulverizer operations as an example, as shown in figure 3, a kind of primary air fan optimization of the utility model
The specific embodiment of configuration system, it include pressure fan 1 and 1 ', pressure fan outlet damper 2 and 2 ', centrifugal primary air fan 3,4,
5,6, centrifugal primary air fan inlet baffle 3 ', 4 ', 5 ', 6 ', outlet damper 3 ' ', 4 ' ', 5 ' ', 6 ' ' and axial flow primary fan
8 and First air main pipe.Wherein, centrifugal primary air fan 3,4,6 can respectively meet the needs of coal pulverizer operation, and centrifugal
5 capacity of primary air fan is relatively large, can meet three coal pulverizers while the needs of operation.Each centrifugal primary air fan parallel connection,
Centrifugation primary air fan inlet baffle and outlet damper are respectively provided with before and after wind turbine.Each centrifugal primary air fan goes out one's intention as revealed in what one says remittance
Enter First air main pipe after conjunction.
When unit starting or load variations, by the different centrifugal primary air fan of start and stop, different number coal-grinding can be met
The operating mode of machine operation then opens centrifugal primary air fan 3,4,6 for example, when the operation of three coal pulverizer quantity, and four coal-grindings
When machine quantity is run, then arbitrary two in centrifugal primary air fan 3,4,6 need to be only shut down, centrifugal primary air fan is then turned on
5, similarly, if six coal pulverizer operations, are all turned on centrifugal primary air fan 3,4,5,6.By provided by the utility model
Primary air fan Optimizing Configuration System is, it can be achieved that primary air fan can keep efficient in wide scope load, and centrifugal First air
Comparatively safe, reliable in machine start and stop and operational process, there is no starting current is big, underload or parallel running occur " stall " and ask
Topic etc..
Difference lies in an axis streams of having connected before centrifugal fan 3,4,5,6 in parallel with embodiment 1 for the present embodiment
Formula primary air fan 8,8 relative capacity of axial flow primary fan is small, and lift is relatively low, is mainly responsible for adjusting lift, with matching
Resistance variation of the primary air system in different load, so that it is guaranteed that each centrifugal fan is run in high efficient district, adaptability phase
It is more preferable to example 1.And the axial flow primary fan is since self-capacity is small, the performance driving economy of one piece wind system
Still still high, further, since the axial flow primary fan for a low capacity of only having connected, tack there is no underload and
Caused " stall " problem.
Embodiment 4
By taking certain unit is using six coal pulverizer operations as an example, as shown in figure 4, a kind of primary air fan optimization of the utility model
The specific embodiment of configuration system, it include pressure fan 1 and 1 ', pressure fan outlet damper 2 and 2 ', centrifugal primary air fan 5,6,
7, centrifugal primary air fan inlet baffle 5 ', 6 ', 7 ', outlet damper 5 ' ', 6 ' ', 7 ' ' and axial flow primary fan 8 and primary
Wind main pipe.Wherein, centrifugal primary air fan 6 can meet the needs of coal pulverizer operation, 7 relative capacity of centrifugal primary air fan
A little louder, the needs that can meet two coal pulverizers while run, and 5 capacity relative maximum of centrifugal primary air fan, can meet three
The needs that coal pulverizer is run simultaneously.Each centrifugal primary air fan parallel connection is respectively provided with centrifugation First air before and after wind turbine
Machine inlet baffle and outlet damper.Going out for each centrifugal primary air fan enters First air main pipe after one's intention as revealed in what one says is converged.
When unit starting or load variations, by the different centrifugal primary air fan of start and stop, different number coal-grinding can be met
The operating mode of machine operation then opens centrifugal primary air fan 6,7 for example, when three coal pulverizer quantity operations, and works as and be raised to by three
When four coal pulverizer quantity operations, then needs to shut down centrifugal primary air fan 7, be then turned on centrifugal primary air fan 5, similarly, when
When being raised to five coal pulverizer quantity operations by four, then centrifugal primary air fan 6 is shut down, centrifugal primary air fan 7 is opened, if six
Platform coal pulverizer is run, then is all turned on centrifugal primary air fan 5,6,7.
By primary air fan Optimizing Configuration System provided by the utility model, it can be achieved that primary air fan is equal in wide scope load
Can keep efficient, and comparatively safe, reliable in centrifugal primary air fan start and stop and operational process, there is no starting current it is big,
" stall " problem etc. occurs for underload or parallel running.
The present embodiment axial-flow type the difference from example 2 is that 5,6,7 front of centrifugal fan in parallel has been connected
Primary air fan 8,8 relative capacity of axial flow primary fan is small, and lift is relatively low, is mainly responsible for adjusting lift, to match one
Resistance variation of the secondary wind system in different load, so that it is guaranteed that each centrifugal fan is run in high efficient district, adaptability is opposite
Example 2 is more preferable.And the axial flow primary fan is since self-capacity is small, the performance driving economy of one piece wind system is still
It is right or high, further, since the axial flow primary fan for a low capacity of only having connected, tacks there is no underload and is led
" stall " problem caused.
Embodiment 5
By taking certain unit is using six coal pulverizer operations as an example, as shown in figure 5, a kind of primary air fan optimization of the utility model
The specific embodiment of configuration system, it include pressure fan 1 and 1 ', pressure fan outlet damper 2 and 2 ', centrifugal primary air fan 3,4,
5,6, centrifugal primary air fan inlet baffle 3 ', 4 ', 5 ', 6 ', outlet damper 3 ' ', 4 ' ', 5 ' ', 6 ' ' and First air main pipe.
Wherein, centrifugal primary air fan 3,4,6 can respectively meet the needs of coal pulverizer operation, and 5 capacity phase of centrifugal primary air fan
To big, three coal pulverizers while the needs of operation can be met.Each centrifugal primary air fan parallel connection is respectively set before and after wind turbine
Centrifugation primary air fan inlet baffle and outlet damper are set.Each centrifugal primary air fan goes out after one's intention as revealed in what one says is converged to enter First air mother
Pipe.
When unit starting or load variations, by the different centrifugal primary air fan of start and stop, different number coal-grinding can be met
The operating mode of machine operation then opens centrifugal primary air fan 3,4,6 for example, when the operation of three coal pulverizer quantity, and four coal-grindings
When machine quantity is run, then arbitrary two in centrifugal primary air fan 3,4,6 need to be only shut down, centrifugal primary air fan is then turned on
5, similarly, if six coal pulverizer operations, are all turned on centrifugal primary air fan 3,4,5,6.
By primary air fan Optimizing Configuration System provided by the utility model, it can be achieved that primary air fan is equal in wide scope load
Can keep efficient, and comparatively safe, reliable in centrifugal primary air fan start and stop and operational process, there is no starting current it is big,
" stall " problem etc. occurs for underload or parallel running.
The present embodiment and embodiment 1 difference lies in primary air fan system and secondary air system are not independent, but
It is connected in series with, pressure fan 1 and 1 ' of having connected before centrifugal primary air fan 3,4,5,6 is in parallel, therefore, this is equivalent to pressure fan 1
A part of lift for assuming responsibility for primary air fan with 1 ', the lift of each centrifugal primary air fan, power can with respect to dot, the configuration
Main advantage is that pressure fan can be responsible for adjusting lift, undertakes unit load variation and the change of primary air system resistance that brings
Change；And frequency conversion then can be used in pressure fan itself, thus it is overall relatively energy saving.
Embodiment 6
By taking certain unit is using six coal pulverizer operations as an example, as shown in fig. 6, a kind of primary air fan optimization of the utility model
The specific embodiment of configuration system, it include pressure fan 1 and 1 ', pressure fan outlet damper 2 and 2 ', centrifugal primary air fan 5,6,
7, centrifugal primary air fan inlet baffle 5 ', 6 ', 7 ', outlet damper 5 ' ', 6 ' ', 7 ' ' and First air main pipe.Wherein, it centrifuges
Formula primary air fan 6 can meet the needs of coal pulverizer operation, and 7 relative capacity of centrifugal primary air fan is a little bigger, can meet two
The needs that coal pulverizer is run simultaneously, and 5 capacity relative maximum of centrifugal primary air fan can meet what three coal pulverizers were run simultaneously
It needs.Each centrifugal primary air fan parallel connection is respectively provided with centrifugation primary air fan inlet baffle and outlet before and after wind turbine
Baffle.Going out for each centrifugal primary air fan enters First air main pipe after one's intention as revealed in what one says is converged.
When unit starting or load variations, by the different centrifugal primary air fan of start and stop, different number coal-grinding can be met
The operating mode of machine operation then opens centrifugal primary air fan 6,7 for example, when three coal pulverizer quantity operations, and works as and be raised to by three
When four coal pulverizer quantity operations, then needs to shut down centrifugal primary air fan 7, be then turned on centrifugal primary air fan 5, similarly, when
When being raised to five coal pulverizer quantity operations by four, then centrifugal primary air fan 6 is shut down, centrifugal primary air fan 7 is opened, if six
Platform coal pulverizer is run, then is all turned on centrifugal primary air fan 5,6,7.
By primary air fan Optimizing Configuration System provided by the utility model, it can be achieved that primary air fan is equal in wide scope load
Can keep efficient, and comparatively safe, reliable in centrifugal primary air fan start and stop and operational process, there is no starting current it is big,
" stall " problem etc. occurs for underload or parallel running.
The present embodiment the difference from example 2 is that primary air fan system and secondary air system are not independent, but
It is connected in series with, pressure fan 1 and 1 ' of having connected before centrifugal primary air fan 3,4,5,6 is in parallel, therefore, this is equivalent to pressure fan 1
A part of lift for assuming responsibility for primary air fan with 1 ', the lift of each centrifugal primary air fan, power can with respect to dot, the configuration
Main advantage is that pressure fan can be responsible for adjusting lift, undertakes unit load variation and the change of primary air system resistance that brings
Change；And frequency conversion then can be used in pressure fan itself, thus it is overall relatively energy saving.And it is essentially consisted in the difference of embodiment 5 centrifugal
The quantity of primary air fan is different, remaining all same, details are not described herein again.
Embodiment 7
Use five coal pulverizer operations, secondary air systems for one-sided configuration by certain unit, as shown in fig. 7, this practicality
A kind of specific embodiment of novel primary air fan Optimizing Configuration System, it include pressure fan 1 and 1 ', centrifugal primary air fan 3,
4,6,7, centrifugal primary air fan inlet baffle 3 ', 4 ', 6 ', 7 ', outlet damper 3 ' ', 4 ' ', 6 ' ', 7 ' ' and First air are female
Pipe.Wherein, centrifugal primary air fan 3,4,6, can respectively meet a coal pulverizer operation needs, and centrifugal primary air fan 7 hold
Measure the needs relatively large, two coal pulverizers can be met while being run.Each centrifugal primary air fan parallel connection, wind turbine is front and back to be divided equally
Primary air fan inlet baffle and outlet damper She Zhiliao not centrifuged.Going out after one's intention as revealed in what one says is converged for each centrifugal primary air fan enters once
Wind main pipe.
When unit starting or load variations, by the different centrifugal primary air fan of start and stop, different number coal-grinding can be met
The operating mode of machine operation then opens centrifugal primary air fan 3,4,6 for example, when the operation of three coal pulverizer quantity, and four coal-grindings
When machine quantity is run, then arbitrary two in centrifugal primary air fan 3,4,6 need to be only shut down, centrifugal primary air fan is then turned on
7, centrifugal primary air fan 3,7 can be also opened, and when four coal pulverizer quantity operations, then centrifugal primary air fan 4 can be increased again
Or any one in 6.Similarly, if five coal pulverizer operations, are all turned on centrifugal primary air fan 3,4,6,7.
By primary air fan Optimizing Configuration System provided by the utility model, it can be achieved that primary air fan is equal in wide scope load
Can keep efficient, and comparatively safe, reliable in centrifugal primary air fan start and stop and operational process, there is no starting current it is big,
" stall " problem etc. occurs for underload or parallel running.
The present embodiment is one-sided configuration difference lies in secondary air system with embodiment 5, this time, centrifugal fan configuration
On, wherein one is not corresponding three coal pulverizers but corresponding two coal pulverizers, remaining all same, details are not described herein again.
Embodiment 8
By taking certain unit uses five coal pulverizer operations as an example, for secondary air system is one-sided configuration, as shown in figure 8, this
A kind of specific embodiment of primary air fan Optimizing Configuration System of utility model, it includes pressure fan 1 and 1 ', centrifugal First air
Machine 3,4,5, centrifugal primary air fan inlet baffle 3 ', 4 ', 5 ', outlet damper 3 ' ', 4 ' ', 5 ' ' and First air main pipe.Its
In, centrifugal primary air fan 3,4 can respectively meet the needs of coal pulverizer operation, and 5 relative capacity of centrifugal primary air fan is big
Point can meet three coal pulverizers while the needs of operation.Each centrifugal primary air fan parallel connection is respectively arranged before and after wind turbine
Centrifugation primary air fan inlet baffle and outlet damper.Each centrifugal primary air fan goes out after one's intention as revealed in what one says is converged to enter First air mother
Pipe.
When unit starting or load variations, by the different centrifugal primary air fan of start and stop, different number coal-grinding can be met
The operating mode of machine operation then opens centrifugal primary air fan 5 for example, when three coal pulverizer quantity operations, and works as and be raised to four by three
When platform coal pulverizer quantity is run, then need to open any one in centrifugal primary air fan 3 or 4, similarly, when being raised to five by four
When platform coal pulverizer quantity is run, then centrifugal primary air fan 3,4,5 is all turned on.
By primary air fan Optimizing Configuration System provided by the utility model, it can be achieved that primary air fan is equal in wide scope load
Can keep efficient, and comparatively safe, reliable in centrifugal primary air fan start and stop and operational process, there is no starting current it is big,
" stall " problem etc. occurs for underload or parallel running.
The present embodiment, difference lies in the configuration on primary air fan, lacks one coal pulverizer of a correspondence with embodiment 7
Centrifugal fan, at the same time, the centrifugal fan of corresponding two coal pulverizers become to correspond to the centrifugal wind of three coal pulverizers
Machine, remaining all same, details are not described herein again.
Embodiment 9
By taking certain unit uses five coal pulverizer operations as an example, for secondary air system is one-sided configuration, as shown in figure 9, this
A kind of specific embodiment of primary air fan Optimizing Configuration System of utility model, it includes pressure fan 1 and 1 ', centrifugal First air
Machine 3,7,9, centrifugal primary air fan inlet baffle 3 ', 7 ', 9 ', outlet damper 3 ' ', 7 ' ', 9 ' ' and First air main pipe.Its
In, centrifugal primary air fan 3 can meet the needs of coal pulverizer operation, and centrifugal primary air fan 7,9 relative capacities are a little bigger, respectively
From the needs that can meet two coal pulverizers while operation.Each centrifugal primary air fan parallel connection is respectively arranged before and after wind turbine
Centrifugation primary air fan inlet baffle and outlet damper.Each centrifugal primary air fan goes out after one's intention as revealed in what one says is converged to enter First air mother
Pipe.
When unit starting or load variations, by the different centrifugal primary air fan of start and stop, different number coal-grinding can be met
The operating mode of machine operation then opens centrifugal primary air fan 3 and 7 for example, when three coal pulverizer quantity operations, and works as and risen by three
When running to four coal pulverizer quantity, then need to close centrifugal primary air fan 3, and open centrifugal primary air fan 9, similarly, when
When being raised to five coal pulverizer quantity operations by four, then centrifugal primary air fan 3,7,9 is all turned on.
By primary air fan Optimizing Configuration System provided by the utility model, it can be achieved that primary air fan is equal in wide scope load
Can keep efficient, and comparatively safe, reliable in centrifugal primary air fan start and stop and operational process, there is no starting current it is big,
" stall " problem etc. occurs for underload or parallel running.
For the present embodiment with embodiment 8 difference lies in the configuration on primary air fan, centrifugal fan is 1 one corresponding
The centrifugal fan of coal pulverizer and 2 centrifugal fans that can respectively correspond to two coal pulverizers, remaining all same are no longer superfluous herein
It states.
Embodiment 10
Use five coal pulverizer operations, secondary air systems for one-sided configuration by certain unit, as shown in Figure 10, this practicality
A kind of specific embodiment of novel primary air fan Optimizing Configuration System, it include pressure fan 1 and 1 ', centrifugal primary air fan 3,
4,6,7, centrifugal primary air fan inlet baffle 3 ', 4 ', 6 ', 7 ', outlet damper 3 ' ', 4 ' ', 6 ' ', 7 ' ' and First air are female
Pipe.Wherein, centrifugal primary air fan 3,4,6, can respectively meet a coal pulverizer operation needs, and centrifugal primary air fan 7 hold
Measure the needs relatively large, two coal pulverizers can be met while being run.Each centrifugal primary air fan parallel connection, wind turbine is front and back to be divided equally
Primary air fan inlet baffle and outlet damper She Zhiliao not centrifuged.Going out after one's intention as revealed in what one says is converged for each centrifugal primary air fan enters once
Wind main pipe.
When unit starting or load variations, by the different centrifugal primary air fan of start and stop, different number coal-grinding can be met
The operating mode of machine operation then opens centrifugal primary air fan 3,4,6 for example, when the operation of three coal pulverizer quantity, and four coal-grindings
When machine quantity is run, then arbitrary two in centrifugal primary air fan 3,4,6 need to be only shut down, centrifugal primary air fan is then turned on
7, centrifugal primary air fan 3,7 can be also opened, and when four coal pulverizer quantity operations, then centrifugal primary air fan 4 can be increased again
Or any one in 6.Similarly, if five coal pulverizer operations, are all turned on centrifugal primary air fan 3,4,6,7.
By primary air fan Optimizing Configuration System provided by the utility model, it can be achieved that primary air fan is equal in wide scope load
Can keep efficient, and comparatively safe, reliable in centrifugal primary air fan start and stop and operational process, there is no starting current it is big,
" stall " problem etc. occurs for underload or parallel running.
The present embodiment and embodiment 7 are difference lies in primary air fan system and secondary air system are independent, in addition, in parallel
The front of centrifugal fan 3,4,6,7 connected an axial flow primary fan 8,8 relative capacity of axial flow primary fan is small,
Its lift is relatively low, is mainly responsible for adjusting lift, is changed with matching resistance of the primary air system in different load, so that it is guaranteed that
Each centrifugal fan is run in high efficient district, and adaptability is more preferable with respect to example 7.And the axial flow primary fan is due to self-capacity
Small, therefore, the performance driving economy of one piece wind system is still still high, further, since the low capacity of only having connected
Axial flow primary fan, " stall " problem caused by tacking there is no underload.Remaining all same, details are not described herein again.
Embodiment 11
By taking certain unit uses five coal pulverizer operations as an example, for secondary air system is one-sided configuration, as shown in figure 11, this
A kind of specific embodiment of primary air fan Optimizing Configuration System of utility model, it includes pressure fan 1 and 1 ', centrifugal First air
Machine 3,4,5, centrifugal primary air fan inlet baffle 3 ', 4 ', 5 ', outlet damper 3 ' ', 4 ' ', 5 ' ' and First air main pipe.Its
In, centrifugal primary air fan 3,4 can respectively meet the needs of coal pulverizer operation, and 5 relative capacity of centrifugal primary air fan is big
Point can meet three coal pulverizers while the needs of operation.Each centrifugal primary air fan parallel connection is respectively arranged before and after wind turbine
Centrifugation primary air fan inlet baffle and outlet damper.Each centrifugal primary air fan goes out after one's intention as revealed in what one says is converged to enter First air mother
Pipe.
When unit starting or load variations, by the different centrifugal primary air fan of start and stop, different number coal-grinding can be met
The operating mode of machine operation then opens centrifugal primary air fan 5 for example, when three coal pulverizer quantity operations, and works as and be raised to four by three
When platform coal pulverizer quantity is run, then need to open any one in centrifugal primary air fan 3 or 4, similarly, when being raised to five by four
When platform coal pulverizer quantity is run, then centrifugal primary air fan 3,4,5 is all turned on.
By primary air fan Optimizing Configuration System provided by the utility model, it can be achieved that primary air fan is equal in wide scope load
Can keep efficient, and comparatively safe, reliable in centrifugal primary air fan start and stop and operational process, there is no starting current it is big,
" stall " problem etc. occurs for underload or parallel running.
The present embodiment, difference lies in the configuration of primary air fan system, one can be respectively corresponded to for two with embodiment 10
The centrifugal fan of coal pulverizer and a centrifugal fan that can correspond to 3 coal pulverizers, remaining all same are no longer superfluous herein
It states.
Embodiment 12
By taking certain unit uses five coal pulverizer operations as an example, for secondary air system is one-sided configuration, as shown in figure 12, this
A kind of specific embodiment of primary air fan Optimizing Configuration System of utility model, it includes pressure fan 1 and 1 ', centrifugal First air
Machine 3,7,9, centrifugal primary air fan inlet baffle 3 ', 7 ', 9 ', outlet damper 3 ' ', 7 ' ', 9 ' ' and First air main pipe.Its
In, centrifugal primary air fan 3 can meet the needs of coal pulverizer operation, and centrifugal primary air fan 7,9 relative capacities are a little bigger, respectively
From the needs that can meet two coal pulverizers while operation.Each centrifugal primary air fan parallel connection is respectively arranged before and after wind turbine
Centrifugation primary air fan inlet baffle and outlet damper.Each centrifugal primary air fan goes out after one's intention as revealed in what one says is converged to enter First air mother
Pipe.
When unit starting or load variations, by the different centrifugal primary air fan of start and stop, different number coal-grinding can be met
The operating mode of machine operation then opens centrifugal primary air fan 3 and 7 for example, when three coal pulverizer quantity operations, and works as and risen by three
When running to four coal pulverizer quantity, then need to close centrifugal primary air fan 3, and open centrifugal primary air fan 9, similarly, when
When being raised to five coal pulverizer quantity operations by four, then centrifugal primary air fan 3,7,9 is all turned on.
By primary air fan Optimizing Configuration System provided by the utility model, it can be achieved that primary air fan is equal in wide scope load
Can keep efficient, and comparatively safe, reliable in centrifugal primary air fan start and stop and operational process, there is no starting current it is big,
" stall " problem etc. occurs for underload or parallel running.
The present embodiment, difference lies in the configuration of primary air fan system, 2 can be respectively corresponded to for two with embodiment 11
The centrifugal fan of coal pulverizer and a centrifugal fan that can correspond to 1 coal pulverizer, remaining all same are no longer superfluous herein
It states.
Embodiment 13
Use five coal pulverizer operations, secondary air systems for one-sided configuration by certain unit, as shown in figure 13, this practicality
A kind of specific embodiment of novel primary air fan Optimizing Configuration System, it include pressure fan 1 and 1 ', centrifugal primary air fan 3,
4,6,7, centrifugal primary air fan inlet baffle 3 ', 4 ', 6 ', 7 ', outlet damper 3 ' ', 4 ' ', 6 ' ', 7 ' ' and First air are female
Pipe.Wherein, centrifugal primary air fan 3,4,6, can respectively meet a coal pulverizer operation needs, and centrifugal primary air fan 7 hold
Measure the needs relatively large, two coal pulverizers can be met while being run.Each centrifugal primary air fan parallel connection, wind turbine is front and back to be divided equally
Primary air fan inlet baffle and outlet damper She Zhiliao not centrifuged.Going out after one's intention as revealed in what one says is converged for each centrifugal primary air fan enters once
Wind main pipe.
When unit starting or load variations, by the different centrifugal primary air fan of start and stop, different number coal-grinding can be met
The operating mode of machine operation then opens centrifugal primary air fan 3,4,6 for example, when the operation of three coal pulverizer quantity, and four coal-grindings
When machine quantity is run, then arbitrary two in centrifugal primary air fan 3,4,6 need to be only shut down, centrifugal primary air fan is then turned on
7, centrifugal primary air fan 3,7 can be also opened, and when four coal pulverizer quantity operations, then centrifugal primary air fan 4 can be increased again
Or any one in 6.Similarly, if five coal pulverizer operations, are all turned on centrifugal primary air fan 3,4,6,7.
By primary air fan Optimizing Configuration System provided by the utility model, it can be achieved that primary air fan is equal in wide scope load
Can keep efficient, and comparatively safe, reliable in centrifugal primary air fan start and stop and operational process, there is no starting current it is big,
" stall " problem etc. occurs for underload or parallel running.
Difference lies in primary air fan system and secondary air system are independent, remaining is homogeneous for the present embodiment and embodiment 7
Together, details are not described herein again.
Embodiment 14
By taking certain unit uses five coal pulverizer operations as an example, for secondary air system is one-sided configuration, as shown in figure 14, this
A kind of specific embodiment of primary air fan Optimizing Configuration System of utility model, it includes pressure fan 1 and 1 ', centrifugal First air
Machine 3,4,5, centrifugal primary air fan inlet baffle 3 ', 4 ', 5 ', outlet damper 3 ' ', 4 ' ', 5 ' ' and First air main pipe.Its
In, centrifugal primary air fan 3,4 can respectively meet the needs of coal pulverizer operation, and 5 relative capacity of centrifugal primary air fan is big
Point can meet three coal pulverizers while the needs of operation.Each centrifugal primary air fan parallel connection is respectively arranged before and after wind turbine
Centrifugation primary air fan inlet baffle and outlet damper.Each centrifugal primary air fan goes out after one's intention as revealed in what one says is converged to enter First air mother
Pipe.
When unit starting or load variations, by the different centrifugal primary air fan of start and stop, different number coal-grinding can be met
The operating mode of machine operation then opens centrifugal primary air fan 5 for example, when three coal pulverizer quantity operations, and works as and be raised to four by three
When platform coal pulverizer quantity is run, then need to open any one in centrifugal primary air fan 3 or 4, similarly, when being raised to five by four
When platform coal pulverizer quantity is run, then centrifugal primary air fan 3,4,5 is all turned on.
By primary air fan Optimizing Configuration System provided by the utility model, it can be achieved that primary air fan is equal in wide scope load
Can keep efficient, and comparatively safe, reliable in centrifugal primary air fan start and stop and operational process, there is no starting current it is big,
" stall " problem etc. occurs for underload or parallel running.
Difference lies in primary air fan system and secondary air system are independent, remaining is homogeneous for the present embodiment and embodiment 8
Together, details are not described herein again.
Embodiment 15
By taking certain unit uses five coal pulverizer operations as an example, for secondary air system is one-sided configuration, as shown in figure 15, this
A kind of specific embodiment of primary air fan Optimizing Configuration System of utility model, it includes pressure fan 1 and 1 ', centrifugal First air
Machine 3,7,9, centrifugal primary air fan inlet baffle 3 ', 7 ', 9 ', outlet damper 3 ' ', 7 ' ', 9 ' ' and First air main pipe.Its
In, centrifugal primary air fan 3 can meet the needs of coal pulverizer operation, and centrifugal primary air fan 7,9 relative capacities are a little bigger, respectively
From the needs that can meet two coal pulverizers while operation.Each centrifugal primary air fan parallel connection is respectively arranged before and after wind turbine
Centrifugation primary air fan inlet baffle and outlet damper.Each centrifugal primary air fan goes out after one's intention as revealed in what one says is converged to enter First air mother
Pipe.
When unit starting or load variations, by the different centrifugal primary air fan of start and stop, different number coal-grinding can be met
The operating mode of machine operation then opens centrifugal primary air fan 3 and 7 for example, when three coal pulverizer quantity operations, and works as and risen by three
When running to four coal pulverizer quantity, then need to close centrifugal primary air fan 3, and open centrifugal primary air fan 9, similarly, when
When being raised to five coal pulverizer quantity operations by four, then centrifugal primary air fan 3,7,9 is all turned on.
By primary air fan Optimizing Configuration System provided by the utility model, it can be achieved that primary air fan is equal in wide scope load
Can keep efficient, and comparatively safe, reliable in centrifugal primary air fan start and stop and operational process, there is no starting current it is big,
" stall " problem etc. occurs for underload or parallel running.
Difference lies in primary air fan system and secondary air system are independent, remaining is homogeneous for the present embodiment and embodiment 9
Together, details are not described herein again.
Specific embodiment of the utility model described in detail above.It should be appreciated that the ordinary skill of this field is without wound
The property made labour, which according to the present utility model can conceive, makes many modifications and variations.Therefore, all technologies in the art
Personnel can be obtained by logical analysis, reasoning, or a limited experiment on the basis of existing technology according to the design of the utility model
The technical solution arrived, all should be in the protection domain being defined in the patent claims.
Claims (4)
1. a kind of primary air fan Optimizing Configuration System, including the centrifugal primary air fan of at least two, First air main pipe and it is arranged in
Inlet baffle and outlet damper before and after the centrifugal primary air fan, which is characterized in that centrifugal First air described at least two
Machine is connected in parallel, and the wind of the outlet damper converges into First air main pipe.
2. a kind of primary air fan Optimizing Configuration System as described in claim 1, which is characterized in that further include 1 axial-flow type one
Secondary wind turbine is connected in series with before the inlet baffle of the axial flow primary fan centrifugal primary air fan described at least two.
3. a kind of primary air fan Optimizing Configuration System as described in claim 1, which is characterized in that further include pressure fan and be located at
The pressure fan outlet damper at pressure fan rear portion, the inlet baffle and the air-supply of centrifugal primary air fan described at least two
Machine outlet damper is connected in series with.
4. a kind of primary air fan Optimizing Configuration System as claimed in claim 3, which is characterized in that the pressure fan can be 2
Platform is connected after the pressure fan parallel connection with centrifugal primary air fan described at least two.
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| CN201820000418.6U CN207673594U (en) | 2018-01-02 | 2018-01-02 | A kind of primary air fan Optimizing Configuration System |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820000418.6U CN207673594U (en) | 2018-01-02 | 2018-01-02 | A kind of primary air fan Optimizing Configuration System |
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| CN207673594U true CN207673594U (en) | 2018-07-31 |
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2018
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