CN201757075U - Monopole centrifugal blower control system - Google Patents
Monopole centrifugal blower control system Download PDFInfo
- Publication number
- CN201757075U CN201757075U CN2010201541149U CN201020154114U CN201757075U CN 201757075 U CN201757075 U CN 201757075U CN 2010201541149 U CN2010201541149 U CN 2010201541149U CN 201020154114 U CN201020154114 U CN 201020154114U CN 201757075 U CN201757075 U CN 201757075U
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- control system
- centrifugal blower
- control center
- surge
- blower control
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Abstract
The utility model discloses a monopole centrifugal blower control system, which comprises a main machine control center receiving the temperature and the pressure of incoming oil, the position of a suction valve, the position of an air release valve, the position of an outlet valve, the temperature of bearings, interlocking faults, load current and surge signals. The main machine control center is connected with a programmable controller, which is connected with an upper controller which controls the input of parameters. The main machine control center, the outlet valve and the air release valve are connected with a motion mechanism. Properly designed, the monopole centrifugal blower control system of the utility model has the functions of protecting surge, warning or interlocking important parameters.
Description
Technical field:
The utility model relates to a kind of single-stage high-speed centrifugal blower control system.
Background technique:
Existing single-stage high-speed centrifugal blower control system, all there are undesirable part in functional reliability and automaticity, the control procedure complexity.
Summary of the invention:
It is a kind of rational in infrastructure that the purpose of this utility model is to provide, the single-stage high-speed centrifugal blower control system of favorable working performance.
Technical solution of the present utility model is:
A kind of single-stage high-speed centrifugal blower control system, it is characterized in that: comprise the host computer control center that receives inlet oil temperature, input pressure, inlet valve position, atmospheric valve position, outlet valve position, bearing temperature, interlocking fault, load current, surge signal, the host computer control center is connected with programmable controller, programmable controller is connected with the last level controller of Control Parameter input, and the host computer control center is connected with inlet valve, atmospheric valve actuating mechanism.
The last level controller of Control Parameter input is a touch screen.
The utility model is rational in infrastructure, and control system also has following advantage
1. flow rate calculation
Selection/the numerical value that comprises the differential pressure transmitter range reads, the measurement of medium temperature, the operating mode flow formula determine the conversion of operating mode flow and mark condition flow.Increase flow measurement position absolute pressure and measure, be aided with inlet temperature, can be converted into mark condition flow.Under the automatic control mode, controlling object is a mark condition flow, is truly realizing the accurate control of aeration rate.
2. surge control
Surge control is based on the test station test curve, and test curve is based on equipment working zone commonly used, and the surging characteristic test under the little aperture of inlet guide vane has certain risk.Actual test curve is shown in Fig. 2 (a).The small flow region characteristic in fact can't be measured.FR surge protection curve should be the nonlinear curve of initial point.Test result can't accurately be described with mathematical formulae, answers piecewise linearity to describe, and as far as possible truly reflects surging characteristic, as Fig. 2 (b).The meaning of the surge in small flow zone control be and network process be blower fan under full speed, inlet guide vane is opened continuously, the process that flow strengthens gradually, in fact the emptying passage may cause surge because flow increases the resistance that forms decreases and can not ignore.Start and the surge assessment of network process and the surge protection curve that protection need be relatively accurate and complete.The successful research and development of the utility model control system, its meaning be system's automatic evaluation system after startup any time the operation point stability and stability margin, and controlled, as Fig. 2 (c), system directly is loaded under the corresponding ductwork pressure after the required minimum discharge of stable operation, begin to increase system resistance, keep this minimum discharge, until being incorporated into the power networks successfully.Whole procedures system all operates in the region of stability.It is automatic to accomplish that truly fan starting is incorporated into the power networks, the realization of safety.And to the not influence of blower fan that networks.For the pipe network system load changing, the operation point is drawn close to the range of instability, and when arriving surge line, control system is opened the emptying passage rapidly, and the operation point immediately breaks away from surge area.Under the extreme case, open the emptying passage and still can't make the operation point break away from surge area, machine cuts out rapidly voluntarily, and the locking machine.
3. the automatic adjusting of flow
Being adjusted in automatically and being that control system is finished automatically according to setting during remote mode of flow.The foundation of the accurate mathematical model of flow control is limited by the influence of on-the-spot pipe network factor, can't set up the very strong controller based on accurate mathematical description of adaptability.At this, we introduce the notion of discrete logarithm, and system is on the basis of a basic algorithm, and constantly the result is controlled in assessment, and control procedure is adjusted, and truly realizes self adaptive control.Discrete logarithm is realized instructionization by Siemens company in its PLC controller, we then are applied in the control system of compressor flow, and obtains good control effect.
4. perfect communication function
System can realize information interaction by Modbus-RTU agreement and upper strata controller.And accept the upper strata controller and control united and coordinating work.Also can realize the Profibus communication or realize the Ethernet communication that network function is comparatively powerful by inserting intelligent object and upper strata controller.
5. the volitional check of load level
Be subjected to user location barometric pressure, the overladen problem of blower fan system might take place in the influence of temperature etc. in actual application, system's full field monitoring load condition, and limited automatically, be the another characteristic of this control system.
Description of drawings:
The utility model is described in further detail below in conjunction with drawings and Examples:
Fig. 1 is an embodiment's of the utility model a configuration diagram.
Fig. 2, Fig. 3, Fig. 4 are the test station test charts of surge control.
Embodiment:
A kind of single-stage high-speed centrifugal blower control system, the host computer control center 2 that comprises signals 1 such as receiving inlet oil temperature, input pressure, inlet valve position, atmospheric valve position, outlet valve position, bearing temperature, interlocking fault, load current, surge, the host computer control center is connected with programmable controller 3, programmable controller is connected with the last level controller 4 of Control Parameter input, and the host computer control center is connected with inlet valve, atmospheric valve actuating mechanism 5,6.The last level controller of Control Parameter input is a touch screen.
Claims (2)
1. single-stage high-speed centrifugal blower control system, it is characterized in that: comprise the host computer control center that receives inlet oil temperature, input pressure, inlet valve position, atmospheric valve position, outlet valve position, bearing temperature, interlocking fault, load current, surge signal, the host computer control center is connected with programmable controller, programmable controller is connected with the last level controller of Control Parameter input, and the host computer control center is connected with inlet valve, atmospheric valve actuating mechanism.
2. single-stage high-speed centrifugal blower control system according to claim 1 is characterized in that: the last level controller of Control Parameter input is a touch screen.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201541149U CN201757075U (en) | 2010-04-09 | 2010-04-09 | Monopole centrifugal blower control system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201541149U CN201757075U (en) | 2010-04-09 | 2010-04-09 | Monopole centrifugal blower control system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201757075U true CN201757075U (en) | 2011-03-09 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010201541149U Expired - Fee Related CN201757075U (en) | 2010-04-09 | 2010-04-09 | Monopole centrifugal blower control system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201757075U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102352866A (en) * | 2011-10-29 | 2012-02-15 | 无锡宝南机器制造有限公司 | Anti-surge control device of blower |
| CN106224240A (en) * | 2016-08-11 | 2016-12-14 | 福建东亚鼓风机股份有限公司 | A kind of aerator |
| CN108026932A (en) * | 2015-10-02 | 2018-05-11 | 大金应用美国股份有限公司 | Centrifugal compressor with surge Forecast |
| CN111306088A (en) * | 2018-12-12 | 2020-06-19 | 中国航发商用航空发动机有限责任公司 | Prediction method and prediction system for performance of gas compressor |
-
2010
- 2010-04-09 CN CN2010201541149U patent/CN201757075U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102352866A (en) * | 2011-10-29 | 2012-02-15 | 无锡宝南机器制造有限公司 | Anti-surge control device of blower |
| CN108026932A (en) * | 2015-10-02 | 2018-05-11 | 大金应用美国股份有限公司 | Centrifugal compressor with surge Forecast |
| CN106224240A (en) * | 2016-08-11 | 2016-12-14 | 福建东亚鼓风机股份有限公司 | A kind of aerator |
| CN106224240B (en) * | 2016-08-11 | 2017-11-03 | 福建东亚环保科技股份有限公司 | A kind of air blower |
| CN111306088A (en) * | 2018-12-12 | 2020-06-19 | 中国航发商用航空发动机有限责任公司 | Prediction method and prediction system for performance of gas compressor |
| CN111306088B (en) * | 2018-12-12 | 2021-08-03 | 中国航发商用航空发动机有限责任公司 | Prediction method and prediction system for performance of gas compressor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: JIANGSU JINTONGLING FLUID MACHINERY TECHNOLOGY CO. Free format text: FORMER NAME: JIANGSU JINTONGLING FAN CO., LTD. |
|
| CP01 | Change in the name or title of a patent holder |
Address after: 226001, Baihua science and technology building, Zhong Xiu Road West, Jiangsu, Nantong Patentee after: Jiangsu Jintongling Fluid Machinery Technology Co., Ltd. Address before: 226001, Baihua science and technology building, Zhong Xiu Road West, Jiangsu, Nantong Patentee before: Jiangsu Jintongling Blower Co., Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110309 Termination date: 20170409 |