CN203879629U - Warning protection device for explosion-proof diesel engine - Google Patents
Warning protection device for explosion-proof diesel engine Download PDFInfo
- Publication number
- CN203879629U CN203879629U CN201420316005.0U CN201420316005U CN203879629U CN 203879629 U CN203879629 U CN 203879629U CN 201420316005 U CN201420316005 U CN 201420316005U CN 203879629 U CN203879629 U CN 203879629U
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- diesel engine
- ecu
- valve
- explosion
- temperature sensor
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Abstract
The utility model discloses a warning protection device for an explosion-proof diesel engine. The warning protection device comprises the explosion-proof diesel engine (1), a gas inlet pipe (2), an exhaust pipe (3), a combustible gas measurer (7), a cooling water temperature sensor (8), a cooling water level sensor (9), an exhaust gas temperature sensor (10), an engine oil pressure sensor (11), an electronic control unit ECU (5), a fuel oil cut-off valve (6), an exhaust brake valve (4), an acousto-optic warning device (12), a galloping protection circuit and a remote monitoring end (13). Due to the warning protection device, safety of the explosion-proof diesel engine is improved substantially.
Description
Technical field
The utility model belongs to electric field, particularly a kind of anti-explosion diesel engine alarm protecting apparatus.
Background technique
Anti-explosion diesel generator set, because high pressure oil pump ratch blocks when maximum fuel feeding position or the regulator failure, is easy to cause " driving " (be that diesel engine speed is out of hand, substantially exceed the highest use rotating speed of regulation) phenomenon.If now force not in time diesel engine stop, the serious accident of the machine that can be damaged.When anti-explosion diesel engine is worked in containing the environment of flammable explosive gas, diesel engine surface temperature, delivery temperature, cooling water temperature and water level, engine oil pressure, working environment inflammable gas content all require to be limited within the specific limits, surpass this scope, inflammable gas by likely igniting in environment, causes the accident.Therefore, in the using process of anti-explosion diesel engine, above-mentioned parameters must be constantly monitored, and when there are abnormal conditions, protective measure can be taked in time.Existing anti-explosion diesel engine automatic protection device function singleness, automaticity is low, safety coefficient is not high, and these factors are restricting the promotion and application of anti-explosion diesel engine.
Model utility content
For the defect of prior art, the utility model provides a kind of anti-explosion diesel engine alarm protecting apparatus.
An anti-explosion diesel engine alarm protecting apparatus, comprises anti-explosion diesel engine 1, suction tude 2, outlet pipe 3, inflammable gas measuring appliance 7, cooling-water temperature sensor 8, cooling water level sensor 9, exhaust gas temperature sensor 10, oil pressure sensor 11, electronic control unit ECU5, fuel oil shut-off valve 6, exhaust braking valve 4, sound flash alarm system device 12, driving protective circuit and remote monitoring end 13;
Described combustible-gas detector 7, cooling-water temperature sensor 8, cooling water level sensor 9, exhaust gas temperature sensor 10 and oil pressure sensor 11 are connected with ECU (Electrical Control Unit) ECU5 by bus, fuel oil shut-off valve 6, sound flash alarm system device 12, exhaust braking valve 4 circuits are connected with electronic control unit ECU5, and ECU5 is connected with remote monitoring end 13 by communication line;
ECU5 compares each sensor signal detecting and predefined limit value, if surpass limit value, ECU5 sends instruction, and sound flash alarm system device 12 sends sound flash alarm system, and ECU5 drives fuel oil shut-off valve 6 to close working connection, and diesel engine is out of service;
Described driving protective circuit comprises 555 time base circuits, mu balanced circuit and the GSM send receive module being connected with ECU5, the sine voltage signal that mu balanced circuit is exported by the generator set of diesel engine transfers to the dividing potential drop current-limiting circuit consisting of resistance R l, resistance R 2 and capacitor Cl and forms, mu balanced circuit input end connects the generator of diesel engine, output terminal and 555 time base circuits are electrical connected, 555 time base circuits connect ECU5, and ECU5 closes exhaust braking valve 4 according to the trigger signal of 555 time base circuits; ECU5 communicates to connect by GSM send receive module and remote monitoring end.
The beneficial effects of the utility model are: by adopting above-mentioned technological scheme, when " driving " occurs diesel engine, the utility model sends control signal, close in time outlet pipe, effectively prevent the generation of " driving " accident, simultaneously by gsm module to operator on duty, send warning message; Inflammable gas content in energy Real-Time Monitoring anti-explosion diesel engine delivery temperature, cooling water temperature and water level, engine oil pressure, environment, when institute's monitoring parameter surpasses limit value, can automatically give the alarm and take protective measure, closes working connection, and Accident prevention occurs.
Accompanying drawing explanation
Fig. 1 is the structural representation of the utility model anti-explosion diesel engine alarm protecting apparatus;
Fig. 2 is the structural representation of driving alarm and protection circuit.
Embodiment
For above-mentioned purpose of the present utility model, feature and advantage can be become apparent more, below in conjunction with accompanying drawing, embodiment of the present utility model is described in detail, it will be more clear making above-mentioned and other object of the present utility model, Characteristics and advantages.In whole accompanying drawings, identical reference character is indicated identical part.Deliberately do not draw in proportion accompanying drawing, focus on illustrating purport of the present utility model.
As shown in Figure 1, anti-explosion diesel engine alarm protecting apparatus of the present utility model comprises anti-explosion diesel engine 1, suction tude 2, outlet pipe 3, inflammable gas measuring appliance 7, cooling-water temperature sensor 8, cooling water level sensor 9, exhaust gas temperature sensor 10, oil pressure sensor 11, electronic control unit ECU5, fuel oil shut-off valve 6, exhaust braking valve 4, sound flash alarm system device 12, remote monitoring end 13.
Exhaust gas temperature sensor 10 is arranged on anti-explosion diesel engine 1 shell, and itself and anti-explosion diesel engine are kept at a certain distance away, cooling-water temperature sensor 8 and cooling water level sensor 9 are arranged in the cooling water tank of anti-explosion diesel engine, exhaust gas temperature sensor 10 is arranged on exhaust outlet place, oil pressure sensor 11 is arranged in anti-explosion diesel engine main oil gallery, combustible-gas detector 7 is arranged on anti-explosion diesel engine outer surface, fuel oil shut-off valve 6 is arranged on anti-explosion diesel engine fuel pipe, sound flash alarm system device 12 is arranged on the outside full position of anti-explosion diesel engine place, electronic control unit ECU5 is integrated in anti-explosion diesel engine self electronic control unit, exhaust braking valve 4 is installed on exhaust duct 3.Combustible-gas detector 7, cooling-water temperature sensor 8, cooling water level sensor 9, exhaust gas temperature sensor 10 and oil pressure sensor 11 are connected with ECU (Electrical Control Unit) ECU5 by bus, and fuel oil shut-off valve 6, sound flash alarm system device 12, exhaust braking valve 4 are also connected with electronic control unit ECU5 by respective lines.ECU5 also for example, is connected with remote monitoring end 13 by communication line (wired or wireless mode), and the signal that ECU5 detects sensor sends to remote monitoring end 13.
In anti-explosion diesel engine working procedure, inflammable gas measuring appliance 7, cooling-water temperature sensor 8, cooling water level sensor 9, exhaust gas temperature sensor 10, inflammable gas content in oil pressure sensor 11 difference monitoring of environmental, diesel engine cooling coolant-temperature gage and water level, delivery temperature, and engine oil pressure, each signal sends electronic control unit ECU to by bus above, ECU compares the signal detecting and predefined limit value, if the parameter of surveying surpass limit value, electronic control unit ECU sends instruction, sound flash alarm system device 12 sends sound flash alarm system, fuel oil shut-off valve 6 cuts out working connection, diesel engine is out of service.
ECU5 can also carry out " driving " protection to diesel engine, and it controls the execution of exhaust braking valve 4 according to diesel engine speed and driving protection rotary speed threshold value, thereby realizes the driving protection for diesel engine.ECU can obtain by measuring the voltage of the generator being connected with diesel engine the rotating speed of diesel engine 1, and determines whether its rotating speed surpasses driving protection rotary speed threshold value.When ECU determines that the rotating speed of diesel engine 1 surpasses driving protection rotary speed threshold value, close exhaust braking valve 4 to carry out exhaust brake.Exhaust braking valve 4 can comprise that exhaust braking electromagnetic valve ECU closes exhaust passage by operation solenoid valve, thereby realizes exhaust brake, makes engine misses.Even if oil-fired system breaks down like this, for example fuel injection quantity or injection pressure are uncontrollable, also can realize driving protection.
It is driving protective circuit of the present utility model please to participate in Fig. 2; ECU5 can be single-chip microcomputer; in protective circuit, comprise stabilized power supply; the sine voltage signal that stabilized power supply is exported by diesel generating set transfers to the dividing potential drop current-limiting circuit consisting of resistance R l, resistance R 2 and capacitor Cl and forms; the sine voltage of diesel generating set output enters detection control circuit from A, B two ends (A termination three phase mains in L1 ~ L3 arbitrary phase, B terminal connecting zero line N).This sine voltage, after Rl current limliting, R2 dividing potential drop, inputs to lCl the 3rd pin through Cl.
IC1 adopts 555 time base circuits, when diesel generating set rotating speed is normal, its output AC voltage frequency is 50Hz, CF center frequency 53Hz lower than 555 time base circuit lCl internal oscillators, the 8th pin output high level of 555 time base circuit lCl, this signal, through resistance R 4 current limlitings, is input to the 39th pin I/O end of single-chip microcomputer lC2, after the inner comprehensive judgement of single-chip microcomputer lC2, do not send driving signal.
When the rotating speed of diesel generating set is increased to 1590r/mim, the frequency of generator set output AC voltage rises to 53Hz, identical with the CF center frequency of 555 time base circuit lCl internal oscillators, the 8th pin output low level of 555 time base circuit lCl, this signal is through resistance R 4 current limlitings, be input to the 39th pin I/O end of single-chip microcomputer lC2, after the inner comprehensive judgement of single-chip microcomputer lC2, the 26th pin output high level signal by single-chip microcomputer lC2, through resistance four current limlitings, make the inner conducting of photo coupler Ul, output low potential, make relay K adhesive, its normally opened contact transfers to normally closed, the solenoid valve DH adhesive of switching on, valve 4 is closed, turn-off the outlet pipe 3 of diesel engine, force diesel engine stop, effectively prevent the generation of " driving " accident.Another road output forms gsm wireless transmission circuit 31 by single-chip microcomputer lC2 the 1st, 2,3,12 pin and GSM send receive module lC3, by single-chip microcomputer lC2, send data command and drive GSM send receive module lC3, after the decoding of GSM send receive module lC3 internal module, to remote monitoring end 13, send warning message, thereby instruct personnel's processing of reaching the spot.
In above description, a lot of details have been set forth so that fully understand the utility model.But above description is only preferred embodiment of the present utility model, the utility model can be implemented to be much different from alternate manner described here, so the utility model is not subject to the restriction of disclosed concrete enforcement above.Any skilled personnel are not departing from technical solutions of the utility model scope situation simultaneously, all can utilize method and the technology contents of above-mentioned announcement to make many possible changes and modification to technical solutions of the utility model, or be revised as the equivalent embodiment of equivalent variations.Every content that does not depart from technical solutions of the utility model,, all still belongs in the scope of technical solutions of the utility model protection any simple modification made for any of the above embodiments, equivalent variations and modification according to technical spirit of the present utility model.
Claims (1)
1. an anti-explosion diesel engine alarm protecting apparatus, it is characterized in that, comprise anti-explosion diesel engine (1), suction tude (2), outlet pipe (3), inflammable gas measuring appliance (7), cooling-water temperature sensor (8), cooling water level sensor (9), exhaust gas temperature sensor (10), oil pressure sensor (11), electronic control unit ECU(5), fuel oil shut-off valve (6), exhaust braking valve (4), sound flash alarm system device (12), driving protective circuit and remote monitoring end (13); Described combustible-gas detector (7), cooling-water temperature sensor (8), cooling water level sensor (9), exhaust gas temperature sensor (10) and oil pressure sensor (11) are by bus and ECU (Electrical Control Unit) ECU(5) be connected, fuel oil shut-off valve (6), sound flash alarm system device (12), exhaust braking valve (4) circuit and electronic control unit ECU(5) be connected, ECU(5) by communication line, be connected with remote monitoring end (13); ECU(5) each sensor signal detecting and predefined limit value are compared, if surpass limit value, ECU(5) send instruction, sound flash alarm system device (12) sends sound flash alarm system, ECU(5) drive fuel oil shut-off valve (6) to close working connection, diesel engine is out of service; Described driving protective circuit comprises and ECU(5) 555 time base circuits, mu balanced circuit and the GSM send receive module that are connected, the sine voltage signal that mu balanced circuit is exported by the generator set of diesel engine (1) transfers to the dividing potential drop current-limiting circuit consisting of resistance R l, resistance R 2 and capacitor Cl and forms, mu balanced circuit input end connects the generator of diesel engine (1), output terminal and 555 time base circuits are electrical connected, 555 time base circuits connect ECU5, and ECU5 closes exhaust braking valve (4) according to the trigger signal of 555 time base circuits; ECU5 communicates to connect by GSM send receive module and remote monitoring end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420316005.0U CN203879629U (en) | 2014-06-16 | 2014-06-16 | Warning protection device for explosion-proof diesel engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420316005.0U CN203879629U (en) | 2014-06-16 | 2014-06-16 | Warning protection device for explosion-proof diesel engine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203879629U true CN203879629U (en) | 2014-10-15 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420316005.0U Expired - Fee Related CN203879629U (en) | 2014-06-16 | 2014-06-16 | Warning protection device for explosion-proof diesel engine |
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| CN (1) | CN203879629U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106441498A (en) * | 2016-09-27 | 2017-02-22 | 山东新沙单轨运输装备有限公司 | Mining diesel monorail crane liquid-level measurement device |
-
2014
- 2014-06-16 CN CN201420316005.0U patent/CN203879629U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106441498A (en) * | 2016-09-27 | 2017-02-22 | 山东新沙单轨运输装备有限公司 | Mining diesel monorail crane liquid-level measurement device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141015 Termination date: 20150616 |
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| EXPY | Termination of patent right or utility model |