CN101560906A - Device and method for comprehensively controlling and protecting pump set of diesel engine - Google Patents
Device and method for comprehensively controlling and protecting pump set of diesel engine Download PDFInfo
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- CN101560906A CN101560906A CNA2009100622009A CN200910062200A CN101560906A CN 101560906 A CN101560906 A CN 101560906A CN A2009100622009 A CNA2009100622009 A CN A2009100622009A CN 200910062200 A CN200910062200 A CN 200910062200A CN 101560906 A CN101560906 A CN 101560906A
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Abstract
The invention relates to a device and a method for comprehensively controlling and protecting a pump set of a diesel engine, which are applied to the comprehensive control and protection of the pump set of the emergency/fire-fighting diesel engine. The device comprises a core operation unit, a signal output unit, a signal input and processing unit and a communication protocol conversion unit; a first single chip machine is connected with the diesel engine, a host computer and an LCD screen; and the first singlechip is also connected with a second singlechip. The method orderly comprises the following steps of self-test, start, process control of the operation of the machine set, state check in the operation of the machine set, control of shutdown of the machine set and completion. The control system has the advantages of high accuracy, strong emergency treatment capability for timely alarm control, low cost, high cost-performance ratio, small volume, simple structure, convenient use and high degree of automation; and the control and protection method can timely and accurately judge various faults occurring during the operation of the machine set and alarm, and make the automatic and accurate control, and the control program is reasonable, simple and reliable.
Description
Technical field
The present invention relates to diesel pump unit Comprehensive Control and protective gear and control and guard method, belong to the control technique field in the electric system, be specially adapted to adopt the Comprehensive Control and the protection of emergent/fire-fighting diesel pump unit of electronic injection diesel engine.
Background technique
Control of existing diesel water pump assembly and protective system; particularly emergent/control of fire-fighting diesel pump unit and protective system; all with small-sized programmable controller (PLC) as key control unit; testing signals such as outside diesel lubrication oil pressure signal, water temperature signal, tach signal, water pump bearing temperature signal; and mode of operation selection, unit starting, compressor emergency shutdown, fault knob-operated signal such as reset inserts PLC, and the output signal of PLC drives executive component through outside relay.
The function that existing diesel water pump assembly control system does not all have and electronic injection diesel engine carries out communication from tape controller; control with guard method can't read electronic injection diesel engine in body controller with the diesel engine running state; the parameter that failure diagnosis information is relevant; code; thereby existing control system can't accurately be controlled the diesel pump unit; can't carry out accurately and timely judgement to the various faults that take place in the unit running process and warning etc.; often can only wait diesel engine producer after sale personnel from body controller, diagnose again after the sense information from diesel engine with special instrument; whole process wastes time and energy, even causes bigger property loss.
Because existing brand PLC is the standard product of batch process, when external input signal does not meet the form of PLC input template, then want to carry out to insert the PLC input template after the conversion with other device earlier, in the control system of existing diesel water pump assembly, just need to adopt special-purpose diesel engine speed chromacoder, the low warning device of battery tension etc., cost is strengthened.
In addition, the control cabinet matched volume of existing diesel pump unit is bigger, can not be placed on easily on the diesel pump unit body, thereby make unit use on-the-spot floor space big.
Summary of the invention
One object of the present invention is, overcomes above-mentioned prior art De Que Dian, and a kind of diesel pump unit Comprehensive Control and protective gear are provided, thereby replaces the original PLC control system of existing diesel pump unit.Apparatus of the present invention can promote the accurately and timely judgement of control system comprehensively, abilities such as emergency processing are reported to the police, reached in accurate control comprehensively, also reduce cost, improve cost performance of product, reduced volume, can be placed on the diesel pump unit body easily, effectively reduce unit in the floor space of using the scene.
Another object of the present invention is; provide a kind of diesel pump unit control and guard method for using control of the present invention and protective gear; it can be in time to the various faults that take place in the unit running process in time, judge accurately and report to the police, implement accurately control automatically that control program is reasonable, easy, reliable.
The technological scheme of diesel pump unit Comprehensive Control of the present invention and protective gear is: it comprises its main operational unit, signal output unit, signal input and processing unit and communications protocol converting unit; Described its main operational unit comprises a double mcu structure: one of them is first single-chip microcomputer, and another is a second singlechip, and its main operational unit also has a shared storage; First single-chip microcomputer connects from tape controller with diesel engine by a protocol conversion module, is used to read the diesel engine running state parameter; First single-chip microcomputer also connects with upper-position unit, the control command that is used to upload unit operation information and receives upper-position unit; First single-chip microcomputer also connects with liquid crystal display panel, is used for operating states of the units information is shown on liquid crystal display panel; First single-chip microcomputer connects with second singlechip.
Further technological scheme with additional technical feature is:
Described diesel pump unit Comprehensive Control and protective gear; its second singlechip and signal input and processing unit and signal output unit connect; be used for input signal is handled and sampled; by technological requirement unit is moved control; failure condition in the unit running process is diagnosed and integrated protection, and the output control signal.
Described diesel pump unit Comprehensive Control and protective gear; its first single-chip microcomputer and second singlechip all connect with shared storage; simultaneously; first single-chip microcomputer connects with handshaking line with second singlechip; be used to obtain the hardware communications circuit of simple and efficient, improve the speed and the reliability of exchange message.
Described diesel pump unit Comprehensive Control and protective gear, its first single-chip microcomputer and second singlechip and shared storage are to connect with the I2C bus mode that FRAM is connected into many MS master-slave.
Described diesel pump unit Comprehensive Control and protective gear, its its main operational unit second singlechip (2.2) wherein is to have comprised the single-chip microcomputer of diesel engine overspeed protection function integrated.
Described diesel pump unit Comprehensive Control and protective gear, its single-chip microcomputer are to have adopted comparator to improve the single-chip microcomputer of the performance of Chip Microcomputer A C, also increase the programmable filter chip simultaneously before ADC, are used to make the more approaching real value of the signal that enters ADC.
Using a kind of diesel pump unit Comprehensive Control of control of the present invention and protective gear and the technological scheme of guard method is: it comprises following program:
A, self check:
Distinguish whether the unit operation condition possesses,, will on liquid crystal display panel, show relevant information, in order to operator's inquiry if unit does not possess operating conditions;
B, startup:
If possess operating conditions and receive enabled instruction, then start and detect whether start success, if start not success, then carry out automatically starting the second time behind the certain hour at interval, start the success not yet of certain number of times continuously, then change unit emergency start control program over to; If unit enters the emergency start control program, will under the situation of some external status of shielding, start unit, if the still continuous several times of unit all can't start, then will block and show relevant information voluntarily;
C, unit operation technology controlling and process:
After starting successfully, unit moves by on-the-spot technological requirement under control;
Status checkout in D, the unit operation:
In servicely simultaneously the status parameter in the unit running process is checked, produced, then failure condition is discerned and failure condition is shown, the fault that needs are shut down is handled if check out the unit fault that has been in operation;
E, compressor emergency shutdown control:
The compressor emergency shutdown control program is the processing to the fault of needs shutdown;
F, end: finish operation.
Further technological scheme with said method of additional technical feature is:
Described a kind of diesel pump unit Comprehensive Control and guard method, starting not successful blanking time is to carry out automatically after 10～20 seconds starting the second time, the number of starts is to surpass three times continuously, otherwise changes unit emergency start control program over to.
Described a kind of diesel pump unit Comprehensive Control and guard method, described situation at some external status of shielding comprises: shielding diesel engine water temperature abnormal signal, diesel lubrication oil pressure anomaly signal, water pump bearing temperature anomaly signal, transmission lubricant pressure anomaly signal.
Obvious technical effects of the present invention:
1, as a whole, replace the original PLC control system of existing diesel pump unit with apparatus of the present invention, performances such as emergency processing are reported to the police, are reached in the accurately and timely judgement of lifting control system comprehensively, comprehensive accurately control, reduce cost, improve cost performance, reduced volume can be placed on the diesel pump unit body easily, effectively reduces unit and is using on-the-spot floor space; Has advantage simple in structure, easy to use, that automaticity is high; Control and guard method can be in time to the various faults that take place in the unit running process in time, judge accurately and report to the police, implement automatic accurate control that control program is reasonable, easy, reliable.Specifically:
2, man-machine interface adopts liquid crystal display, accomplishes human oriented design.Liquid crystal display can show the various real-time parameters and the warning message of diesel engine operation.Also can show the time that four group alarms are historical and report to the police.Also have comprising startup, the interface that the values of setting such as shutdown are made amendment simultaneously.
3, adopt the double mcu structure, wherein single-chip microcomputer is responsible for the control and the protection of diesel pump unit, another piece single-chip microcomputer be responsible for electronic injection diesel engine from the communication of tape controller and the demonstration of liquid crystal display panel etc.Two single-chip microcomputers and 1 shared storage FRAM are connected into the I2C bus mode of many MS master-slave, increase by 2 handshaking line A, B, can obtain advantages of simplicity and high efficiency hardware communications circuit, improve the speed and the reliability of exchange message.
4, adopt protocol conversion module that the information of electronic injection diesel engine in tape controller is carried out format conversion; thereby can make things convenient for, read at high speed by single-chip microcomputer; and be shown on the liquid crystal display panel; make things convenient for the user of service correctly to judge operating states of the units, wherein the part important parameter will be participated in the Comprehensive Control and the protection of unit directly.
It is as follows that the invention will be further described in conjunction with the accompanying drawings and embodiments:
Description of drawings
Fig. 1 is the Comprehensive Control of diesel pump unit and the structural representation of protective gear;
Fig. 2 is diesel pump unit Comprehensive Control and guard method routing routing diagram;
Each figure number name is called among the figure: 1-signal output unit, 1.1-switching value output point, 1.2-analog output channel; 2-its main operational unit, 2.1-first single-chip microcomputer, 2.2-second singlechip, 2.3-shared storage; Input of 3-signal and processing unit, 3.1-analog amount input hardware filtering loop, the 3.2-analog input channel, 3.3-interrupts input point firmly, 3.4-switching value input point; 4-communications protocol converting unit, the 4.1-protocol conversion module; The 5-diesel engine; The 6-upper-position unit; The 7-liquid crystal display panel.
Embodiment
As shown in Figure 1: a kind of diesel pump unit Comprehensive Control and protective gear, it has an its main operational unit 2, signal output unit 1, signal input and processing unit 3 and communications protocol converting unit 4, above-mentioned hardware circuit is except that communications protocol converting unit 4, all be integrated on the pcb board, and pcb board encapsulated with metal shell; There is a double mcu structure described its main operational unit 2: one of them is first single-chip microcomputer 2.1, and another is a second singlechip 2.2, and its main operational unit 2 also has a shared storage 2.3; First single-chip microcomputer 2.1 connects from tape controller by a protocol conversion module 4.1 and diesel engine 5, is used to read the diesel engine running state parameter, and the running state parameter of diesel engine is taken in diesel pump unit Comprehensive Control and the protective gear; First single-chip microcomputer 2.1 also connects with upper-position unit 6, the control command that is used to upload unit operation information and receives upper-position unit 6; First single-chip microcomputer 2.1 also connects with liquid crystal display panel 7, is used for operating states of the units information is shown on liquid crystal display panel 7; First single-chip microcomputer 2.1 connects with second singlechip 2.2; First single-chip microcomputer 2.1 and second singlechip 2.2 are to adopt the C8051F020 single-chip microcomputer, and this type single-chip microcomputer has high cost performance, fastestly can reach 25MIPS and built-in 12 ADC, 64K byte FLASH storage.Shared storage adopts the FM31 series product of ferroelectric company (Ramtron).Input of described second singlechip 2.2 and signal and processing unit 3 and signal output unit 1 connect; be used for input signal is handled and sampled; by technological requirement unit is moved control; failure condition in the unit running process is diagnosed and integrated protection, and the output control signal.Protocol conversion module 4.1 is to adopt the MWE-CAN100 protocol conversion module, it is the product that a high-speed, high-performance, power supply signal are twoly isolated, built-in CAN agreement is explained microprocessor, and it can be changed the system of RS-232/RS-485/RS-422 configuration so that can work under CAN controller local area network bus system.Described first single-chip microcomputer 2.1 and second singlechip 2.2 all connect with shared storage 2.3, simultaneously, first single-chip microcomputer 2.1 connects with handshaking line A, B with second singlechip 2.2, is used to obtain the hardware communications circuit of simple and efficient, improves the speed and the reliability of exchange message.Described first single-chip microcomputer 2.1 and second singlechip 2.2 and shared storage 2.3 are to connect with the I2C bus mode that FRAM is connected into many MS master-slave.Described its main operational unit 2 second singlechip (2.2) wherein is to have had the single-chip microcomputer of diesel engine overspeed protection function integrated.First single-chip microcomputer 2.1 and second singlechip 2.2 are to have adopted comparator to improve the single-chip microcomputer of the performance of Chip Microcomputer A C, also increase the programmable filter chip simultaneously before ADC, make the more approaching real value of the signal that enters ADC.Input of described signal and processing unit 3 have the hard interruption input point in an analog amount input hardware filtering loop connecting respectively with second singlechip 2.2 3.1,3.3, a switching value input point 3.4; Analog amount input hardware filtering loop 3.1 also connects with analog input channel 3.2.
As shown in Figure 2, be to use the above-mentioned Comprehensive Control of the present invention and protective gear and a kind of diesel pump unit Comprehensive Control implemented and an embodiment of guard method, its program is: A, self check: distinguish whether the unit operation condition possesses, if unit does not possess operating conditions, to on liquid crystal display panel, show relevant information, in order to operator's inquiry; B, startup: if possess operating conditions and receive enabled instruction, then start and detect whether start success,, then carry out automatically starting the second time after 10～20 second time at interval if start not success, startup can not be above three times continuously, success does not then change unit emergency start control program over to yet, if present embodiment starts not success, then carry out automatically starting the second time after 15 second time at interval, start three times continuously, success does not then change unit emergency start control program over to yet; If unit enters the emergency start control program, to start unit under the situation of the more following external status of shielding, situation about being shielded is: shielding diesel engine water temperature abnormal signal, diesel lubrication oil pressure anomaly signal, water pump bearing temperature anomaly signal, transmission lubricant pressure anomaly signal.If the still continuous several times of unit all can't start, then will block and show relevant information voluntarily; C, unit operation technology controlling and process: after starting successfully, unit moves by on-the-spot technological requirement under control; Status checkout in D, the unit operation: in servicely simultaneously the status parameter in the unit running process is checked, if checking out the unit fault that has been in operation produces, then failure condition is discerned and failure condition is shown, the fault that needs are shut down is handled; E, compressor emergency shutdown control: the compressor emergency shutdown control program is the processing to the fault of needs shutdown; F, end: finish operation.
The present invention is owing to adopt the double mcu structure and rationally divide the function that each single-chip microcomputer is undertaken, rapid dynamic response speed, functional reliability is strong, carry out communication with diesel engine in real time from tape controller in this running, and relevant parameter shown, some important status parameters are participated in the control go, improved the accuracy height of control.
Claims (9)
1, a kind of diesel pump unit Comprehensive Control and protective gear is characterized in that, it comprises its main operational unit (2), signal output unit (1), signal input and processing unit (3) and communications protocol converting unit (4); Described its main operational unit (2) comprises a double mcu structure: one of them is first single-chip microcomputer (2.1), and another is second singlechip (2.2), and its main operational unit (2) also have a shared storage (2.3); First single-chip microcomputer (2.1) connects from tape controller with diesel engine (5) by a protocol conversion module (4.1), is used to read the diesel engine running state parameter; First single-chip microcomputer (2.1) also connects with upper-position unit (6), the control command that is used to upload unit operation information and receives upper-position unit; First single-chip microcomputer (2.1) also connects with liquid crystal display panel (7), is used for operating states of the units information is shown on liquid crystal display panel (7); First single-chip microcomputer (2.1) connects with second singlechip (2.2).
2, diesel pump unit Comprehensive Control as claimed in claim 1 and protective gear; it is characterized in that; input of described second singlechip (2.2) and signal and processing unit (3) and signal output unit (1) connect; be used for input signal is handled and sampled; by technological requirement unit is moved control; failure condition in the unit running process is diagnosed and integrated protection, and the output control signal.
3, diesel pump unit Comprehensive Control as claimed in claim 1 and protective gear; it is characterized in that; described first single-chip microcomputer (2.1) and second singlechip (2.2) all connect with shared storage (2.3); simultaneously; first single-chip microcomputer (2.1) connects with handshaking line with second singlechip (2.2); be used to obtain the hardware communications circuit of simple and efficient, improve the speed and the reliability of exchange message.
4, diesel pump unit Comprehensive Control as claimed in claim 3 and protective gear; it is characterized in that described first single-chip microcomputer (2.1) and second singlechip (2.2) and shared storage (2.3) are to connect with the I2C bus mode that FRAM is connected into many MS master-slave.
5, diesel pump unit Comprehensive Control as claimed in claim 1 and protective gear is characterized in that, described its main operational unit (2) second singlechip (2.2) wherein is to have comprised the single-chip microcomputer of diesel engine overspeed protection function integrated.
6, diesel pump unit Comprehensive Control as claimed in claim 1 and protective gear; it is characterized in that; described single-chip microcomputer (2.1; 2.2) be to have adopted comparator to improve the single-chip microcomputer of Chip Microcomputer A C performance; also before ADC, increase the programmable filter chip simultaneously, be used to make the more approaching real value of the signal that enters ADC.
7, use a kind of diesel pump unit Comprehensive Control and the guard method of control of the present invention and protective gear, it is characterized in that, comprise following program:
A, self check:
Distinguish whether the unit operation condition possesses,, will on liquid crystal display panel, show relevant information, in order to operator's inquiry if unit does not possess operating conditions;
B, startup:
If possess operating conditions and receive enabled instruction, then start and detect whether start success, if start not success, then carry out automatically starting the second time behind the certain hour at interval, start the success not yet of certain number of times continuously, then change unit emergency start control program over to; If unit enters the emergency start control program, will under the situation of some external status of shielding, start unit, if the still continuous several times of unit all can't start, then will block and show relevant information voluntarily;
C, unit operation technology controlling and process:
After starting successfully, unit moves by on-the-spot technological requirement under control;
Status checkout in D, the unit operation:
In servicely simultaneously the status parameter in the unit running process is checked, produced, then failure condition is discerned and failure condition is shown, the fault that needs are shut down is handled if check out the unit fault that has been in operation;
E, compressor emergency shutdown control:
The compressor emergency shutdown control program is the processing to the fault of needs shutdown;
F, end: finish operation.
8, a kind of diesel pump unit Comprehensive Control as claimed in claim 7 and guard method; it is characterized in that; described startup success is to carry out automatically after 10～20 seconds starting second time blanking time, and the number of starts is can not be above three times continuously, otherwise changes unit emergency start control program over to.
9, a kind of diesel pump unit Comprehensive Control as claimed in claim 7 and guard method; it is characterized in that described situation at some external status of shielding comprises: shielding diesel engine water temperature abnormal signal, diesel lubrication oil pressure anomaly signal, water pump bearing temperature anomaly signal, transmission lubricant pressure anomaly signal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100622009A CN101560906B (en) | 2009-05-22 | 2009-05-22 | Device and method for comprehensively controlling and protecting pump set of diesel engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100622009A CN101560906B (en) | 2009-05-22 | 2009-05-22 | Device and method for comprehensively controlling and protecting pump set of diesel engine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101560906A true CN101560906A (en) | 2009-10-21 |
| CN101560906B CN101560906B (en) | 2011-05-18 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009100622009A Expired - Fee Related CN101560906B (en) | 2009-05-22 | 2009-05-22 | Device and method for comprehensively controlling and protecting pump set of diesel engine |
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| CN (1) | CN101560906B (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101729561A (en) * | 2009-11-19 | 2010-06-09 | 天津市百利电气有限公司 | Low-voltage electrical appliance communication protocol adapter |
| CN104005866A (en) * | 2014-06-11 | 2014-08-27 | 广州三业科技有限公司 | Method and control device for protecting cam rotor pump of diesel engine from cavitation |
| CN106238886A (en) * | 2016-08-12 | 2016-12-21 | 上海交通大学 | Inverse type direct current plasma power supply cutting method |
| CN106574545A (en) * | 2014-08-21 | 2017-04-19 | Imo工业股份有限公司 | Intelligent seawater cooling system |
| CN114151343A (en) * | 2017-03-17 | 2022-03-08 | 株式会社荏原制作所 | Information processing apparatus, information processing system, information processing method, and computer readable medium |
| US11946470B2 (en) | 2017-03-17 | 2024-04-02 | Ebara Corporation | Information processing apparatus, information processing system, information processing method, program, substrate processing apparatus, criterion data determination apparatus, and criterion data determination method |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3829994B2 (en) * | 1995-01-06 | 2006-10-04 | 富士通株式会社 | File device development device and development system |
| CN1239782A (en) * | 1999-07-05 | 1999-12-29 | 广州市恒鹰商业数据有限公司 | Pressure stabilizing control method and system for water supply with pump driven by diesel engine |
-
2009
- 2009-05-22 CN CN2009100622009A patent/CN101560906B/en not_active Expired - Fee Related
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101729561A (en) * | 2009-11-19 | 2010-06-09 | 天津市百利电气有限公司 | Low-voltage electrical appliance communication protocol adapter |
| CN104005866A (en) * | 2014-06-11 | 2014-08-27 | 广州三业科技有限公司 | Method and control device for protecting cam rotor pump of diesel engine from cavitation |
| CN106574545A (en) * | 2014-08-21 | 2017-04-19 | Imo工业股份有限公司 | Intelligent seawater cooling system |
| US10344662B2 (en) | 2014-08-21 | 2019-07-09 | Circor Pumps North America, Llc | Intelligent seawater cooling system |
| CN110735706A (en) * | 2014-08-21 | 2020-01-31 | 色蔻泵北美有限责任公司 | Intelligent seawater cooling system |
| CN106238886A (en) * | 2016-08-12 | 2016-12-21 | 上海交通大学 | Inverse type direct current plasma power supply cutting method |
| CN106238886B (en) * | 2016-08-12 | 2019-04-19 | 上海交通大学 | Inverse type direct current plasma power supply cutting method |
| CN114151343A (en) * | 2017-03-17 | 2022-03-08 | 株式会社荏原制作所 | Information processing apparatus, information processing system, information processing method, and computer readable medium |
| US11946470B2 (en) | 2017-03-17 | 2024-04-02 | Ebara Corporation | Information processing apparatus, information processing system, information processing method, program, substrate processing apparatus, criterion data determination apparatus, and criterion data determination method |
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| Publication number | Publication date |
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| CN101560906B (en) | 2011-05-18 |
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