CN203098351U - Frequency conversion automatic switchover power frequency boiler draught fan system - Google Patents
Frequency conversion automatic switchover power frequency boiler draught fan system Download PDFInfo
- Publication number
- CN203098351U CN203098351U CN 201320116129 CN201320116129U CN203098351U CN 203098351 U CN203098351 U CN 203098351U CN 201320116129 CN201320116129 CN 201320116129 CN 201320116129 U CN201320116129 U CN 201320116129U CN 203098351 U CN203098351 U CN 203098351U
- Authority
- CN
- China
- Prior art keywords
- frequency
- frequency conversion
- boiler
- variable
- draught fan
- 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.)
- Expired - Lifetime
Links
Images
Abstract
The utility model relates to the draught fan technical field, in particular to a frequency conversion automatic switchover power frequency boiler draught fan system. The frequency conversion automatic switchover power frequency boiler draught fan system comprises a central DCS control device, a frequency conversion speed adjusting device and two primary draught fans which are connected in parallel. The frequency conversion speed adjusting device comprises a first frequency conversion speed adjusting machine and a second frequency conversion speed adjusting machine. The first frequency conversion speed adjusting machine and the second frequency conversion speed adjusting machine are respectively connected with one primary draught fan. An air inlet and an air outlet of each primary draught fan are both provided with a ventilation door baffle. The ventilation door baffles, the first frequency conversion speed adjusting machine and the second frequency conversion speed adjusting machine are all connected with the central DCS control device. Air quantity of the boiler draught fan system is provided by the two primary draught fans, and the primary draught fans at a lower revolving speed can meet the requirement of normal operation of a boiler. When a load of the boiler is increased, double increase of the air quantity can be achieved by increasing a certain revolving speed simultaneously through the two primary draught fans, and stable air quantity adjusting performance of the boiler draught fan system can be further improved.
Description
Technical field
The utility model relates to the boiler fan technical field, particularly a kind of frequency conversion automatically switching power frequency boiler fan system.
Background technique
In the process of paper product automatic production, generally utilize station boiler to generate electricity, and the primary air fan of boiler mainly provides the air quantity of boiler operatiopn, includes the required oxygen of burning in this air quantity, promptly can regulate the load of boiler by the air quantity of regulating primary air fan.
Carry air quantity all to provide to boiler in the prior art by a primary air fan, the air quantity that the load of boiler is with primary air fan provides is corresponding, when needs improve the load of boiler, in order to make air quantity corresponding with the load of boiler, then need to improve the rotating speed of primary air fan, when the rotating speed of primary air fan is brought up to a certain degree, the raising of primary air fan rotating speed can cause the less stable of primary air fan, primary air fan is damaged, further cause the boiler can not be normal, influenced the normal production order.
The model utility content
The purpose of this utility model is to avoid above-mentioned deficiency of the prior art and does not provide a kind of primary air fan fragile and have a frequency conversion automatically switching power frequency boiler fan system of air quantity adjusting function stably.
The purpose of this utility model is achieved through the following technical solutions:
A kind of frequency conversion automatically switching power frequency boiler fan system is provided, comprise central DCS control gear, the primary air fan of RHVC and two parallel connections, described RHVC comprises first variable-frequency governor and second variable-frequency governor, described first variable-frequency governor is connected with a primary air fan respectively with described second variable-frequency governor, each primary air fan all has exhaust outlet and intake grill, described exhaust outlet and described intake grill are provided with the air door baffle plate, described air door baffle plate, described first variable-frequency governor all is connected with described central DCS control gear with described second variable-frequency governor.
Wherein, also include shunting device, described shunting device is connected with described central DCS control gear.
Wherein, the exhaust outlet of described primary air fan and intake grill are provided with the baffle plate swivel mount, and the air door baffle plate rotatably is connected in the baffle plate swivel mount.
Wherein, the described first variable frequency adjustment device and the second variable frequency adjustment device are the AC-DC-AC voltage frequency converter.
The beneficial effects of the utility model: the air quantity of boiler fan system is provided by two primary air fans, what can make primary air fan just can satisfy the demand of boiler to air quantity under lower rotating speed, when needs improve the load of boiler, only need two primary air fans to improve the bigger increase that less rotating speed can be realized air quantity simultaneously, make primary air fan can not cause the damage of primary air fan, also improved the boiler fan system simultaneously and had air quantity adjusting function stably because of improving too much rotating speed.
Description of drawings
The utility model is described in further detail to utilize accompanying drawing, but the embodiment in the accompanying drawing does not constitute any restriction of the present utility model, for those of ordinary skill in the art, under the prerequisite of not paying creative work, can also obtain other accompanying drawing according to the following drawings.
Fig. 1 is the structural representation of frequency conversion automatically switching power frequency boiler fan of the present utility model system.
In Fig. 1, include:
The 1-primary air fan,
21-first variable-frequency governor,
22-second variable-frequency governor,
3-air door baffle plate.
Embodiment
With the following Examples the utility model is further described.
The embodiment of frequency conversion automatically switching power frequency boiler fan of the present utility model system, as shown in Figure 1, comprise central DCS control gear, RHVC, the primary air fan 1 of shunting device and two parallel connections, described RHVC comprises first variable-frequency governor 21 and second variable-frequency governor 22, described first variable-frequency governor 21 is connected with a primary air fan 1 respectively with described second variable-frequency governor 22, each primary air fan 1 is equipped with exhaust outlet and intake grill, described exhaust outlet and described intake grill are provided with air door baffle plate 3, described shunting device, described air door baffle plate 3, described first variable-frequency governor 21 all is connected with described central DCS control gear with described second variable-frequency governor 22.
Two primary air fan 1 parallel runnings during normal the operation, the air quantity of boiler fan system is provided by two primary air fans 1, what can make primary air fan 1 just can satisfy the demand of boiler to air quantity under lower rotating speed, when needs improve the load of boiler, only need two primary air fans 1 to improve the bigger increase that less rotating speed can be realized air quantity simultaneously, make primary air fan 1 can not cause the damage of primary air fan 1, also improved the boiler fan system simultaneously and had air quantity adjusting function stably because of improving too much rotating speed.
When one of them breaks down when described first variable-frequency governor 21 and described second variable-frequency governor 22; described shunting device can automatically switch to primary air fan 1 power frequency of direct connection civil power; simultaneously 1 of another primary air fan frequency of being converted to power frequency to be avoiding the occurring situation that blast, air quantity significantly change and tack, thereby protected the proper functioning of blower fan system.
The exhaust outlet of primary air fan 1 and intake grill are provided with the baffle plate swivel mount, air door baffle plate 3 rotatably is connected in the baffle plate swivel mount, and load boiler constant when rotation speed of fan needs to change, can control air quantity by 3 foldings of air door baffle plate, particularly working as frequency variator breaks down, primary air fan 1 can cause the significantly variation of air quantity when being switched to the power frequency of civil power by shunting device, can guarantee effectively that by air door baffle plate 3 primary air fan 1 blows to the air quantity of boiler this moment.
Wherein, the described first variable frequency adjustment device and the second variable frequency adjustment device are the AC-DC-AC voltage frequency converter.
Should be noted that at last; above embodiment is only in order to the explanation the technical solution of the utility model; but not to the restriction of the utility model protection domain; although the utility model has been done to explain with reference to preferred embodiment; those of ordinary skill in the art is to be understood that; can make amendment or be equal to replacement the technical solution of the utility model, and not break away from the essence and the scope of technical solutions of the utility model.
Claims (4)
1. frequency conversion automatically switching power frequency boiler fan system, comprise central DCS control gear, the primary air fan of RHVC and two parallel connections, described RHVC comprises first variable-frequency governor and second variable-frequency governor, described first variable-frequency governor is connected with a primary air fan respectively with described second variable-frequency governor, each primary air fan all has exhaust outlet and intake grill, described exhaust outlet and described intake grill are provided with the air door baffle plate, described air door baffle plate, described first variable-frequency governor all is connected with described central DCS control gear with described second variable-frequency governor.
2. frequency conversion automatically switching power frequency boiler fan according to claim 1 system, it is characterized in that: also include shunting device, described shunting device is connected with described central DCS control gear.
3. frequency conversion automatically switching power frequency boiler fan according to claim 1 system, it is characterized in that: the exhaust outlet of described primary air fan and intake grill are provided with the baffle plate swivel mount, and the air door baffle plate rotatably is connected in the baffle plate swivel mount.
4. frequency conversion automatically switching power frequency boiler fan according to claim 1 system, it is characterized in that: the described first variable frequency adjustment device and the second variable frequency adjustment device are the AC-DC-AC voltage frequency converter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320116129 CN203098351U (en) | 2013-03-14 | 2013-03-14 | Frequency conversion automatic switchover power frequency boiler draught fan system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320116129 CN203098351U (en) | 2013-03-14 | 2013-03-14 | Frequency conversion automatic switchover power frequency boiler draught fan system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203098351U true CN203098351U (en) | 2013-07-31 |
Family
ID=48849759
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320116129 Expired - Lifetime CN203098351U (en) | 2013-03-14 | 2013-03-14 | Frequency conversion automatic switchover power frequency boiler draught fan system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203098351U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104132437A (en) * | 2014-08-14 | 2014-11-05 | 上海嘉成轨道交通安全保障系统股份公司 | Air inlet mechanism of air purification system and control method |
| CN104539036A (en) * | 2014-12-12 | 2015-04-22 | 芜湖新兴铸管有限责任公司 | Circuit used for boiler induced draft fan |
| CN105715748A (en) * | 2016-04-05 | 2016-06-29 | 哈尔滨广瀚动力传动有限公司 | Planet speed adjusting clutch device for coaxial steam and electricity double-drive boiler fan system |
| CN106762778A (en) * | 2016-12-06 | 2017-05-31 | 攀钢集团攀枝花钢钒有限公司 | For single supply air system of double pressure fan |
| CN107975924A (en) * | 2017-11-07 | 2018-05-01 | 珠海格力电器股份有限公司 | The wind turbine of multi fan air-conditioning system starts control method and air-conditioning system |
| CN108126630A (en) * | 2018-01-29 | 2018-06-08 | 天脊煤化工集团股份有限公司 | A kind of volume adjusting apparatus of granulation tower |
-
2013
- 2013-03-14 CN CN 201320116129 patent/CN203098351U/en not_active Expired - Lifetime
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104132437A (en) * | 2014-08-14 | 2014-11-05 | 上海嘉成轨道交通安全保障系统股份公司 | Air inlet mechanism of air purification system and control method |
| CN104132437B (en) * | 2014-08-14 | 2017-08-29 | 上海嘉成轨道交通安全保障系统股份公司 | The air inlet mechanism and control method of air cleaning system |
| CN104539036A (en) * | 2014-12-12 | 2015-04-22 | 芜湖新兴铸管有限责任公司 | Circuit used for boiler induced draft fan |
| CN105715748A (en) * | 2016-04-05 | 2016-06-29 | 哈尔滨广瀚动力传动有限公司 | Planet speed adjusting clutch device for coaxial steam and electricity double-drive boiler fan system |
| CN106762778A (en) * | 2016-12-06 | 2017-05-31 | 攀钢集团攀枝花钢钒有限公司 | For single supply air system of double pressure fan |
| CN107975924A (en) * | 2017-11-07 | 2018-05-01 | 珠海格力电器股份有限公司 | The wind turbine of multi fan air-conditioning system starts control method and air-conditioning system |
| CN108126630A (en) * | 2018-01-29 | 2018-06-08 | 天脊煤化工集团股份有限公司 | A kind of volume adjusting apparatus of granulation tower |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN203098351U (en) | Frequency conversion automatic switchover power frequency boiler draught fan system | |
| CN104948490A (en) | Dust removal fan constant-air-pressure frequency control system and method | |
| CN104481815B (en) | A kind of compressed-air energy storage and the wind generator system of release integration | |
| CN104329281A (en) | Variable frequency energy-saving system for movable blade adjustable type induced draft fan | |
| CN107781203A (en) | With the frequency converter for automatically adjusting rate of heat dispation function | |
| CN102777320A (en) | Torque and variable-pitch decoupling control method for wind driven generator set, controller and system thereof | |
| CN202001348U (en) | Frequency conversion control system of fan | |
| CN109505732A (en) | One kind three drives three motor wind-power paddle changing devices and its control system | |
| CN102384512A (en) | Novel range hood | |
| CN203360397U (en) | Coal mill drying systems adopting parallel structure | |
| CN208503068U (en) | Bladeless fan | |
| CN202612163U (en) | Fan variable frequency speed control system based on programmable logic controller (PLC) | |
| CN202012448U (en) | Wind generating set | |
| CN203098352U (en) | Boiler primary air fan speed control system | |
| CN207406436U (en) | A kind of wind power plant | |
| CN203135790U (en) | Automatic pressure adjusting system of range hood blower fan | |
| CN206917876U (en) | A kind of energy-saving fan | |
| CN206175280U (en) | Intelligence fan power saving device | |
| CN204164015U (en) | A kind of adjusting rotor blade formula induced draught fan frequency conversion energy-saving system | |
| CN102661283A (en) | Power frequency and variable frequency mixed working condition power station fan RB control system and control method thereof | |
| CN111022131A (en) | Dynamic power control method for double-power steam turbine | |
| CN203717241U (en) | Intelligent variable-pitch speed regulating systems and wind driven generator comprising same | |
| CN110397614A (en) | A kind of airflow pressure automatic control system of fired power generating unit | |
| CN203057045U (en) | Abrasive machine frequency-conversion adjustable roller rotating speed concentrated control device | |
| CN210380261U (en) | Intelligent adjusting device of dynamic reactive compensation cooling system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130731 |