CN101818738A - Comprehensive training device of centrifugal pumps - Google Patents
Comprehensive training device of centrifugal pumps Download PDFInfo
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- CN101818738A CN101818738A CN 201010119730 CN201010119730A CN101818738A CN 101818738 A CN101818738 A CN 101818738A CN 201010119730 CN201010119730 CN 201010119730 CN 201010119730 A CN201010119730 A CN 201010119730A CN 101818738 A CN101818738 A CN 101818738A
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- centrifugal pump
- centrifugal
- centrifugal pumps
- training device
- flow
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Abstract
The invention discloses a comprehensive training device of centrifugal pumps, which is characterized by comprising centrifugal pump systems, control cabinets and an upper computer, wherein the centrifugal pump systems are communicated with the control cabinets, the control cabinets are communicated with the upper computer, and the centrifugal pump systems and the flow control cabinets are set into two groups. The comprehensive training device is simple to operate and can conveniently realize the operation training, such as startup and shutdown of the centrifugal pumps, switch between the two centrifugal pumps, flow regulation and the like, simultaneously carry out training of analysis and clearance of common faults during the running process of the centrifugal pumps, and further lead students to carry out the operation training which is similar to a DCS (centralized distributed control system) on the upper computer; and the students passing the training examination of the device can be fully competent for the operation work of the centrifugal pumps in chemical production.
Description
Technical field
The present invention relates to a kind of chemical industry teaching training apparatus, especially relate to a kind of comprehensive training device of centrifugal pumps that is used for the chemical industry teaching, it is mainly used in chemical industry specialty student and chemical industry post operation personnel's centrifugal pump operation training and examination.
Background technique
Centrifugal pump is to use very general conveying equipment for fluid substances in the Chemical Manufacture, and the operation of centrifugal pump is the basic operation of Chemical Manufacture.In the China Higher professional colleges, many centrifugal pump experimental setups are arranged, be used to carry out the replication experiment that centrifugal pump performance is measured, along with the Higher Occupational Education continuous development of the reform, in order to cultivate the high professional qualification applied talent that chemical enterprise is badly in need of, adapt to the reform of chemical engineering unit operation course and instructional mode, satisfy the engineering combination, incorporate teaching, training requirement is done in teaching, need transform existing centrifugal pump experimental setup, the expansion and even the transformation of the function by realizing the centrifugal pump experimental setup, make it change actual training device into by experimental setup, so that it can meet Chemical Manufacture reality fully, on function, be higher than the centrifugal pump conveyance fluid device in the Chemical Manufacture again.
Summary of the invention
In order to overcome the deficiencies in the prior art, the object of the present invention is to provide a kind of practicality, strong operability, can intact realization theory and the comprehensive training device of centrifugal pumps of putting into practice the purpose of Integrated Teaching.
The present invention is achieved through the following technical solutions:
A kind of comprehensive training device of centrifugal pumps is characterized in that, comprises centrifugal pump system, control cabinet, host computer, wherein, centrifugal pump system is communicated with control cabinet, and control cabinet is communicated with host computer, and described centrifugal pump system and flow control cabinet are provided with two groups.
Above-mentioned centrifugal pump system comprises centrifugal pump, suction line, discharge conduit, pipe valve, flow control instrument, instrumentation and Displaying Meter, suction line and discharge conduit are separately positioned on the both sides of centrifugal pump, and pipe valve, flow control instrument, instrumentation and Displaying Meter then are separately positioned on the corresponding pipeline.
Further, connect by corresponding pipeline between two groups of centrifugal pumps.
Be provided with in the above-mentioned host computer and monitor and control general-purpose system configuration software.
The invention has the beneficial effects as follows: the operation trainings such as start-stop car, the switching between two centrifugal pumps and Flow-rate adjustment that the present invention is simple to operate, can realize centrifugal pump easily, can carry out simultaneously Analysis of Common in the centrifugal pump running, get rid of training, and can make the student carry out the operation training of similar DCS (concentrate decentralized control system) on host computer of the present invention, the student by device training and examination of the present invention can be competent at the centrifugal pump operation element in the Chemical Manufacture fully.
Description of drawings
Fig. 1 is the overall structure schematic representation of one embodiment of the invention;
Fig. 2 is the process flow diagram of one embodiment of the invention.
Main reference character implication is among the figure:
1, water tank 2, centrifugal pump system 3, control cabinet 4, host computer
Embodiment
Below in conjunction with accompanying drawing, describe the specific embodiment of the present invention in detail:
Fig. 1 is the overall structure schematic representation of one embodiment of the invention;
As shown in Figure 1:
Comprehensive training device of centrifugal pumps comprises centrifugal pump system 2, control cabinet 3, host computer 4, wherein, centrifugal pump system 2 is communicated with control cabinet 3, and control cabinet 3 is communicated with host computer 4, and described centrifugal pump system 2 and control cabinet 3 are provided with two groups, and centrifugal pump system 2 comprises centrifugal pump, suction line, discharge conduit, pipe valve, the flow control instrument, instrumentation and Displaying Meter, suction line and discharge conduit are separately positioned on the both sides of centrifugal pump, and pipe valve, the flow control instrument, instrumentation and Displaying Meter then are separately positioned on the corresponding pipeline, in addition, connect by corresponding pipeline between two groups of centrifugal pumps.
In the present embodiment, be provided with supervision and control general-purpose system configuration software in the host computer 4.Be the MCGS configuration software, utilize it again the performance characteristic mensuration system of centrifugal pump to be carried out configuration, make its automatic adjusting that can realize flow, accomplish that closed loop PID truly regulates.
In addition, the present invention can make " soft control instrument " in the monitoring runnable interface of MCGS configuration software, can eject the interface of setting, can be implemented in and carry out on this " soft control instrument " manually or automatic switchover, show and measure, 3 signals of given output, the online P that is provided with, I, D (ratio, integration, differential) operation such as parameter, thereby realize the automatic detection of centrifugal pump system 2 various process parameters, show also and can on host computer 4, carry out putting into operation of flow control circuit, parameter tuning and operation maintenance, and the changes in flow rate trend that host computer 4 can write down in the respective line simultaneously, when flow is excessive or too small, monitoring runnable interface at the MCGS configuration software can obtain the alarm signal demonstration, simultaneously, host computer 4 can be realized not having disturbance and switch, flow is regulated automatically, functions such as warning, certainly, on the control panel of control cabinet 3, can realize above-mentioned functions too by the relevant hardware facility.
In addition; thereby pump trip was realized interlock protection when above-mentioned flow control instrument surpassed setting range at the flow of centrifugal pump system 2; promptly when upset operation took place, the flow control instrument can be exported switching value signal cut centrifugal pump power supply and realize that interlocking stops when flow was too high or too low in the pipeline.
Fig. 2 is the process flow diagram of one embodiment of the invention.
As shown in Figure 2: specific embodiment is as follows:
1, centrifugal pump driving (is example with centrifugal pump 1),
(1) jiggering, crawl;
(2) crack outlet valve V102 opens the water irrigating valve pump priming, closes V102 and water irrigating valve after having irritated;
(3) on the control panel of control cabinet 3 at the scene, by " startup " pushbutton enable centrifugal pump 1;
(4) open the outlet valve V102 of centrifugal pump 1.
In single pump operation process of centrifugal pump one, can carry out the characteristic curve determination experiment of centrifugal pump 1 under permanent rotating speed and the variable speed.
2, centrifugal pump Flow-rate adjustment:
Can in the flow control instrument, will cut " manually " at piping flow during, finish no disturbance switching, utilize modulating valve FEV101 to carry out the automatic adjusting of flow to " automatically " near setting value; Also can on host computer 4, utilize the automatic adjusting of MCGS configuration software realization to flow.
In manual, automatic switching procedure, can set inflow-rate of water turbine interlocking trouble of shutdown, and when flow is regulated automatically, can write down the trend of changes in flow rate.
3, the centrifugal pump inflow-rate of water turbine is reported to the police, is interlocked and stop:
Flow surpasses alarming value in pipeline, and the software interface by alarm on the control panel of control cabinet 3 and host computer 4 sends alarm signal, when flow in the pipeline surpasses the interlocking value, and the termination of pumping of can interlocking of then flow control instrument, modulating valve resets.
4, two centrifugal pumps series connection:
(1) starts centrifugal pump 1 by single pump starting method;
(2) centrifugal pump 2 22 pump primings, the outlet valve V105 that closes centrifugal pump 2 22, inlet valve V109;
(3) open the outlet valve V102 of centrifugal pump 1, flow control valve FEV101 closes, and opens valve V107 simultaneously;
(4) start centrifugal pump 2 22;
(5) open the outlet valve V105 of centrifugal pump 2 22, the flow control valve FEV102 that opens centrifugal pump 2 22 regulates flow.
5, two centrifugal pump parallel connections:
(1) starts centrifugal pump 1 and centrifugal pump 2 22 by single pump starting method;
(2) open valve V108;
(3) the flow control valve FEV101 that opens centrifugal pump 1 regulates flow.
6, two pumps switch:
(1) centrifugal pump 1 normally moves;
(2) start centrifugal pump 2 22 by single pump starting method, open valve V108;
(3) treat centrifugal pump two pressure stabilitys after, the outlet valve V105 of centrifugal pump 1 is slowly opened, slowly close the outlet valve V102 of centrifugal pump 1 simultaneously, keep stability of flow in the export pipeline;
(4) the outlet valve V105 standard-sized sheet of centrifugal pump 2 22, the outlet valve V102 complete shut-down of centrifugal pump 1;
(5) stop centrifugal pump 1, centrifugal pump 2 22 puts into operation.
In two pump handoff procedures, misoperation can be provided with inflow-rate of water turbine interlocking trouble of shutdown.
The present invention can realize that the flow of closed loop is regulated automatically, inflow-rate of water turbine is reported to the police, interlocking, no disturbance switching and centrifugal pump Analysis of Common and eliminating function, can on host computer of the present invention, carry out the operation training of similar DCS (concentrating decentralized control system), thereby make the present invention become satisfactory comprehensive training device.
Below disclose the present invention with preferred embodiment, so it is not in order to restriction the present invention, and all employings are equal to replaces or technological scheme that the equivalent transformation mode is obtained, all drops within protection scope of the present invention.
Claims (4)
1. comprehensive training device of centrifugal pumps is characterized in that, comprises centrifugal pump system, control cabinet, host computer, wherein, centrifugal pump system is communicated with control cabinet, and control cabinet is communicated with host computer, and described centrifugal pump system and flow control cabinet are provided with two groups.
2. comprehensive training device of centrifugal pumps according to claim 1, it is characterized in that, described centrifugal pump system comprises centrifugal pump, suction line, discharge conduit, pipe valve, flow control instrument, instrumentation and Displaying Meter, suction line and discharge conduit are separately positioned on the both sides of centrifugal pump, and pipe valve, flow control instrument, instrumentation and Displaying Meter then are separately positioned on the corresponding pipeline.
3. comprehensive training device of centrifugal pumps according to claim 1 is characterized in that, connects by corresponding pipeline between described two groups of centrifugal pumps.
4. comprehensive training device of centrifugal pumps according to claim 1 is characterized in that, is provided with in the described host computer to monitor and control general-purpose system configuration software.
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CN 201010119730 CN101818738A (en) | 2010-03-08 | 2010-03-08 | Comprehensive training device of centrifugal pumps |
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CN 201010119730 CN101818738A (en) | 2010-03-08 | 2010-03-08 | Comprehensive training device of centrifugal pumps |
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN104088806A (en) * | 2014-06-26 | 2014-10-08 | 徐州禹神机电有限公司 | Submersible electric pump control system |
Citations (5)
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---|---|---|---|---|
US4740137A (en) * | 1986-11-17 | 1988-04-26 | Dresser Industries, Inc. | Method and apparatus for improving the efficiency of centrifugal pumps |
CN1779271A (en) * | 2004-11-19 | 2006-05-31 | 上海东方泵业(集团)有限公司 | Integrated control system of water pump |
EP1893874A1 (en) * | 2005-06-21 | 2008-03-05 | ITT Manufacturing Enterprises, Inc. | Control system for a pump |
CN101427190A (en) * | 2006-04-19 | 2009-05-06 | Ksb股份公司 | Centrifugal pump unit with switching device |
CN201347868Y (en) * | 2009-02-05 | 2009-11-18 | 重庆贻科科技有限公司 | Industry cycle water energy-saving control system |
-
2010
- 2010-03-08 CN CN 201010119730 patent/CN101818738A/en active Pending
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4740137A (en) * | 1986-11-17 | 1988-04-26 | Dresser Industries, Inc. | Method and apparatus for improving the efficiency of centrifugal pumps |
CN1779271A (en) * | 2004-11-19 | 2006-05-31 | 上海东方泵业(集团)有限公司 | Integrated control system of water pump |
EP1893874A1 (en) * | 2005-06-21 | 2008-03-05 | ITT Manufacturing Enterprises, Inc. | Control system for a pump |
CN101427190A (en) * | 2006-04-19 | 2009-05-06 | Ksb股份公司 | Centrifugal pump unit with switching device |
CN201347868Y (en) * | 2009-02-05 | 2009-11-18 | 重庆贻科科技有限公司 | Industry cycle water energy-saving control system |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN104088806A (en) * | 2014-06-26 | 2014-10-08 | 徐州禹神机电有限公司 | Submersible electric pump control system |
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Application publication date: 20100901 |