CN102705067A - Coolant leakage preventing device, coolant leakage preventing device and engineering machinery cooling system - Google Patents
Coolant leakage preventing device, coolant leakage preventing device and engineering machinery cooling system Download PDFInfo
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- CN102705067A CN102705067A CN201210151983XA CN201210151983A CN102705067A CN 102705067 A CN102705067 A CN 102705067A CN 201210151983X A CN201210151983X A CN 201210151983XA CN 201210151983 A CN201210151983 A CN 201210151983A CN 102705067 A CN102705067 A CN 102705067A
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Abstract
The invention provides a coolant leakage preventing device, a coolant leakage preventing device and an engineering machinery cooling system. The coolant leakage preventing device is used for the engineering machinery cooling system which comprises a heat radiator; and the coolant leakage preventing device comprises a first pressure sensor and a controller. The first pressure sensor is arranged at a water outlet of the heat radiator; and the controller is connected with the first pressure sensor and used for acquiring a pressure signal value at the water outlet and controlling and executing an operation of stopping the work of an engine when the pressure signal value is smaller than a preset threshold value. By the real-time monitoring on water pressure at the water outlet of the heat radiator, the overheating of the engine caused by coolant leakage is effectively avoided.
Description
Technical field
The present invention relates to engineering machinery field, relate in particular to a kind of cooling liquid leakage preventer and method, cooling system for construction machinery.
Background technique
The cooling system of engineering machinery should be full of cooling liquid when work, account for 5%-8% if cooling liquid lacks volume, and cool cycles will stop.If when in running order, cooling liquid is revealed, and motor very soon can be because of overheated and suffer damage.
For example; In the prior art, there is a kind of like this cooling system of detection certainly of engineering machinery, specifically; Be on the water intake of engineering power engine, pressure transducer to be housed; On the water outlet connecting tube of engineering power engine temperature transducer is housed, on the secondary water tank water output duct liquid level sensor is housed, sensor is connected with warning device through alarm control system behind the warning wire harness separately.
This is owing to only on the water intake of engineering power engine, pressure transducer is housed, therefore, can only corresponding record the hydraulic pressure in the water pump water inlet pipe from the technical problem that detects the cooling system existence; But, when causing cooling liquid leakage or sewer, the radiator core body corrosion comes off, and significant change can not take place in the water yield in the secondary water tank at short notice, can not in time report to the police, and motor very soon can be because of overheated and suffer damage.
Summary of the invention
The objective of the invention is to propose a kind of radiator coolant leakage preventer and cooling system for construction machinery, with the engine overheat phenomenon of effectively avoiding causing because of the cooling liquid leakage.
First aspect the invention discloses a kind of cooling liquid leakage preventer, is used to comprise the cooling system for construction machinery of radiator; Leakage preventer comprises: first pressure transducer and controller.Wherein, first pressure transducer is arranged at the water outlet place of said radiator; Controller is connected with said first pressure transducer, is used to gather the pressure signal value at said water outlet place, and in said pressure signal value during less than predetermined threshold, the operation of shutting theengine down is carried out in control.
Further; In the described cooling liquid leakage preventer; Said leakage preventer also comprises second pressure transducer and warning device, and wherein, said second pressure transducer is arranged at the water inlet of said radiator; Be connected with said controller, be used to gather the pressure signal value of said water inlet; And said controller also is used for when said pressure signal value is positioned at outside the predetermined value interval, produces warning message; Said warning device is used to receive said warning message, and sends alarm signal.
Further, in the described cooling liquid leakage preventer, said leakage preventer also comprises display device, is connected with said controller, is used for the pressure signal value that shows that respectively two sensor acquisition arrive.
Second aspect, the present invention also provides a kind of cooling system for construction machinery, comprises engineering power engine and radiator, and said engineering power engine is connected through pipeline with said radiator; Also comprise the cooling liquid leakage preventer, said leakage preventer comprises first pressure transducer and controller; Wherein, first pressure transducer is arranged at the water outlet place of said radiator; Controller is connected with said first pressure transducer, is used to gather the pressure signal value at said water outlet place, and in said pressure signal value during less than predetermined threshold, the operation of shutting theengine down is carried out in control.
Further; In the described cooling system for construction machinery; Said leakage preventer also comprises second pressure transducer and warning device, and wherein, said second pressure transducer is arranged at the water inlet of said radiator; Be connected with said controller, be used to gather the pressure signal value of said water inlet; And said controller also is used for when said pressure signal value is positioned at outside the predetermined value interval, produces warning message; Said warning device is used to receive said warning message, and sends alarm signal.
Further, in the described cooling system for construction machinery, said leakage preventer also comprises display device, and display device is connected with said controller, is used for the pressure signal value that shows that respectively two sensor acquisition arrive.
The third aspect; The invention also discloses a kind of cooling liquid leakage prevention method, be used for cooling system for construction machinery, comprise the steps: to gather the pressure signal value at said radiator outlet place; And under the situation of pressure signal value less than predetermined threshold at this water outlet place, shutting theengine down.
Further, described cooling liquid leakage prevention method also comprises: gather the pressure signal value at said water inlet of radiator place, and the pressure signal value in this water inlet is sent warning message when being positioned at outside the predetermined value interval.
Among the present invention,, effectively avoided the engine overheat phenomenon that causes because of the cooling liquid leakage through the hydraulic pressure at radiator outlet place is monitored in real time.
Description of drawings
In order to be illustrated more clearly in the embodiment of the invention or technological scheme of the prior art; To do to introduce simply to the accompanying drawing of required use in embodiment or the description of the Prior Art below; Obviously, the accompanying drawing in describing below only is some embodiments of the present invention, for those of ordinary skills; Under the prerequisite of not paying creative work property, can also obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 is cooling liquid leakage preventer first embodiment's of the present invention structural representation;
Fig. 2 is cooling liquid leakage preventer second embodiment's of the present invention structural representation;
Fig. 3 is another embodiment's of cooling liquid leakage preventer of the present invention structural representation;
Fig. 4 is cooling liquid leakage prevention method embodiment's of the present invention flow chart of steps.
Embodiment
To combine the accompanying drawing in the embodiment of the invention below, the technological scheme in the embodiment of the invention is carried out clear, intactly description, obviously, described embodiment is the present invention's part embodiment, rather than whole embodiments.Based on the embodiment among the present invention, those of ordinary skills are not making the every other embodiment who is obtained under the creative work prerequisite, all belong to the scope of the present invention's protection.
First aspect the invention discloses a kind of cooling liquid leakage preventer.Specific embodiment can be with reference to Fig. 1, Fig. 2 or Fig. 3.The existing detailed description as follows.
First embodiment
With reference to Fig. 1, Fig. 1 is cooling liquid leakage preventer first embodiment's of the present invention structural representation.
A kind of cooling liquid leakage preventer of this embodiment is used for cooling system for construction machinery, and generally speaking, cooling system for construction machinery comprises engineering power engine 20, radiator 10 and water tank 80.Particularly, the cooling liquid leakage preventer comprises first pressure transducer 30 and controller 50.Wherein, first pressure transducer 30 is arranged at water outlet 110 places of radiator 10; Controller 50 is connected with first pressure transducer 30, is used to gather the pressure signal value at water outlet 110 places, and in the pressure signal value during less than predetermined threshold, the operation of shutting theengine down is carried out in control.That is to say that when radiator outlet pressure was too small, motor then quit work, prevent that the engine overheat phenomenon that a large amount of leakages of cooling liquid cause takes place because of sewer comes off.In addition, generally speaking, the pressure signal of the first pressure transducer collection will pass through the processing of signal amplification module, actual specific than the time, be that pressure signal and predetermined threshold after amplifying are done comparison.
In the present embodiment,, effectively avoided the engine overheat phenomenon that causes because of the cooling liquid leakage through the hydraulic pressure at radiator outlet place is monitored in real time.
Second embodiment
With reference to Fig. 2, Fig. 2 is cooling liquid leakage preventer second embodiment's of the present invention structural representation.
Present embodiment cooling liquid leakage preventer comprises first pressure transducer 30, second pressure transducer 40, controller 50 and warning device 60.
Wherein, first pressure transducer 30 is arranged at water outlet 110 places of radiator 10; Controller 50 is connected with first pressure transducer 30, is used to gather the pressure signal value at water outlet 110 places, and in the pressure signal value during less than predetermined threshold, the operation of shutting theengine down is carried out in control.That is to say that when radiator outlet pressure was too small, motor then quit work, prevent that the engine overheat phenomenon that a large amount of leakages of cooling liquid cause takes place because of sewer comes off.In addition, generally speaking, the pressure signal of the first pressure transducer collection will pass through the processing of signal amplification module, actual specific than the time, be that pressure signal and predetermined threshold after amplifying are done comparison.
Thus, can find out that the effect of second sensor of increase is through the hydraulic pressure at monitoring water intake 120 places, in time to find the fault of pipeline blockage or leakage.And controller also combines with warning device 60, further ensures the Security of motor operation.For example, utilize beacon or buzzer to carry out acoustooptic alarm, remind the client to shut down radiator is maintained or keeps in repair.
To sum up, in the present embodiment, the pressure of water inlet of radiator water pipe and water outlet water pipe is monitored in real time, effectively avoided because of cooling liquid leakage or the not smooth engine overheat phenomenon that causes of liquid circulation.
In addition, can also do further improvement,, increase display device 70 with reference to Fig. 3 to above-mentioned second embodiment.This display device 70 is connected with controller 50; Controller 50 internal processes convert the pressure signal that receives to digital signal, utilize the nixie tube group to be shown to the user, therefore; The user can monitor the pressure of radiator outlet and water intake in real time, further prevents cooling liquid leakage or pipeline blockage.Certainly, actual situation is that display device 70 can show the pressure that one of them pressure transducer is gathered, and also can show the pressure that two pressure transducers are gathered simultaneously.The present invention does not do qualification at this, chooses according to actual needs to get final product.
Second aspect the invention also discloses a kind of cooling system for construction machinery, and this system has made complete explanation in above-mentioned cooling liquid leakage preventer embodiment, and relevant part is please with reference to above-mentioned explanation.
The third aspect the invention also discloses a kind of cooling liquid leakage prevention method.This method does, gathers the pressure signal value at radiator outlet place, and under the situation of pressure signal value less than predetermined threshold at this water outlet place, shutting theengine down.That is to say,, effectively avoided the engine overheat phenomenon that causes because of the cooling liquid leakage through the hydraulic pressure at radiator outlet place is monitored in real time.Further, this method is the pressure at monitoring water inlet of radiator place further, specifically, gathers the pressure signal value at water inlet of radiator place, and the pressure signal value in this water inlet is sent warning message when being positioned at outside the predetermined value interval.This step is in time found the fault of pipeline blockage or leakage through the hydraulic pressure at place, the monitoring mouth of a river.
Below in conjunction with Fig. 4 the embodiment of cooling liquid leakage prevention method of the present invention is further described.At first, place a pressure transducer respectively at water outlet place, the water inlet of radiator.Behind the pressure signal process signal amplification module of two pressure transducer receptions, transmit to controller; Controller is done comparison with given threshold value or threshold range respectively with the pressure signal that receives; If the pressure of water inlet exceeds not in given scope; Then utilize beacon or buzzer to carry out acoustooptic alarm, remind the client to shut down radiator is maintained or keeps in repair; If the pressure at water outlet place is less than predetermined threshold, motor then quits work, and prevents because of sewer comes off, and the engine overheat phenomenon that a large amount of leakages of cooling liquid cause takes place.
Need to prove that the principle of cooling liquid leakage prevention method is similar with the cooling liquid leakage preventer, relevant part can cross-reference.
The above is merely preferred embodiment of the present invention, and is in order to restriction the present invention, not all within spirit of the present invention and principle, any modification of being done, is equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (8)
1. cooling liquid leakage preventer is used to comprise the cooling system for construction machinery of radiator (10); It is characterized in that leakage preventer comprises:
First pressure transducer (30), the water outlet (110) that is arranged at said radiator (10) is located;
Controller (50) is connected with said first pressure transducer (30), is used to gather the pressure signal value that said water outlet (110) is located, and in said pressure signal value during less than predetermined threshold, the operation of shutting theengine down is carried out in control.
2. cooling liquid leakage preventer according to claim 1 is characterized in that, said leakage preventer also comprises second pressure transducer (40) and warning device (60), wherein
Said second pressure transducer (40) is arranged at the water intake (120) of said radiator (10) and locates, and is connected with said controller (50), is used to gather the pressure signal value that said water intake (120) is located;
And said controller (50) also is used for when said pressure signal value is positioned at outside the predetermined value interval, produces warning message; And
Said warning device (60) is used to receive said warning message, and sends alarm signal.
3. cooling liquid leakage preventer according to claim 2 is characterized in that, said leakage preventer also comprises,
Display device (70) is connected with said controller (50), is used for the pressure signal value that shows that respectively two sensor acquisition arrive.
4. a cooling system for construction machinery comprises engineering power engine (20) and radiator (10), and said engineering power engine (20) is connected through pipeline with said radiator (10);
It is characterized in that also comprise the cooling liquid leakage preventer, said leakage preventer comprises:
First pressure transducer (30), the water outlet (110) that is arranged at said radiator (10) is located;
Controller (50) is connected with said first pressure transducer (30), is used to gather the pressure signal value that said water outlet (110) is located, and in said pressure signal value during less than predetermined threshold, the operation of shutting theengine down is carried out in control.
5. cooling system for construction machinery according to claim 4 is characterized in that,
Said leakage preventer also comprises second pressure transducer (40) and warning device (60), wherein
Said second pressure transducer (40) is arranged at the water intake (120) of said radiator (10) and locates, and is connected with said controller (50), is used to gather the pressure signal value that said water intake (120) is located;
And said controller (50) also is used for when said pressure signal value is positioned at outside the predetermined value interval, produces warning message; And
Said warning device (60) is used to receive said warning message, and sends alarm signal.
6. cooling system for construction machinery according to claim 5 is characterized in that,
Said leakage preventer also comprises,
Display device (70) is connected with said controller (50), is used for the pressure signal value that shows that respectively two sensor acquisition arrive.
7. a cooling liquid leakage prevention method is used for cooling system for construction machinery, it is characterized in that, comprises the steps:
Gather the pressure signal value at said radiator outlet place, and under the situation of pressure signal value less than predetermined threshold at this water outlet place, shutting theengine down.
8. cooling liquid leakage prevention method according to claim 7 is characterized in that, also comprises:
Gather the pressure signal value at said water inlet of radiator place, and the pressure signal value in this water inlet is sent warning message when being positioned at outside the predetermined value interval.
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| CN201210151983.XA CN102705067B (en) | 2012-05-17 | 2012-05-17 | Cooling liquid leakage preventer and method, cooling system for construction machinery |
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| CN201210151983.XA CN102705067B (en) | 2012-05-17 | 2012-05-17 | Cooling liquid leakage preventer and method, cooling system for construction machinery |
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| CN102705067A true CN102705067A (en) | 2012-10-03 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105471178A (en) * | 2015-12-07 | 2016-04-06 | 新疆金风科技股份有限公司 | Leakage protection apparatus and method for water-cooling system and water-cooling system of wind generator unit |
| CN111332094A (en) * | 2019-12-27 | 2020-06-26 | 黄山杰尔马热交换系统有限公司 | Anti-blocking warm air water tank |
| CN111948259A (en) * | 2020-07-31 | 2020-11-17 | 一汽解放汽车有限公司 | Detection method and detection device for vehicle coolant and vehicle |
| CN113606032A (en) * | 2021-08-31 | 2021-11-05 | 东风商用车有限公司 | Fault diagnosis control method and system for engine cooling system |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003168454A (en) * | 2001-11-30 | 2003-06-13 | Honda Motor Co Ltd | Cooling equipment of fuel cell |
| CN1455186A (en) * | 2002-05-01 | 2003-11-12 | 三星电子株式会社 | Air conditioner and method for detecting refrigrant leakage |
| CN2669069Y (en) * | 2003-11-08 | 2005-01-05 | 海尔集团公司 | Air conditioner for realizing flexible variable start |
| CN101554516A (en) * | 2009-05-25 | 2009-10-14 | 北京中卓时代消防装备科技有限公司 | Automatic control and alarming system for firefighting vehicle |
| CN201628497U (en) * | 2010-04-15 | 2010-11-10 | 山西汾西热能工程有限公司 | Double-tube clearance perfusion leakage alarming air cooler |
| CN201680972U (en) * | 2010-04-12 | 2010-12-22 | 青岛海泰自动化仪表有限公司 | Auto radiator thermal shock test table |
| CN202012393U (en) * | 2011-01-02 | 2011-10-19 | 襄樊美标康盛动力科技有限公司 | Self-detection cooling system |
| EP2420399A1 (en) * | 2009-05-20 | 2012-02-22 | Sanden Corporation | Driving torque-calculating device for variable displacement compressor, and air conditioning system for vehicle |
| CN102374009A (en) * | 2010-08-24 | 2012-03-14 | 通用汽车环球科技运作有限责任公司 | Coolant Surge Tank For Cooling System Of Combustion Engine For Vehicle |
| CN102454470A (en) * | 2010-10-19 | 2012-05-16 | 通用汽车环球科技运作有限责任公司 | Cooling system for an internal combustion engine, internal combustion engine and motor vehicle having an internal combustion engine |
-
2012
- 2012-05-17 CN CN201210151983.XA patent/CN102705067B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003168454A (en) * | 2001-11-30 | 2003-06-13 | Honda Motor Co Ltd | Cooling equipment of fuel cell |
| CN1455186A (en) * | 2002-05-01 | 2003-11-12 | 三星电子株式会社 | Air conditioner and method for detecting refrigrant leakage |
| CN2669069Y (en) * | 2003-11-08 | 2005-01-05 | 海尔集团公司 | Air conditioner for realizing flexible variable start |
| EP2420399A1 (en) * | 2009-05-20 | 2012-02-22 | Sanden Corporation | Driving torque-calculating device for variable displacement compressor, and air conditioning system for vehicle |
| CN101554516A (en) * | 2009-05-25 | 2009-10-14 | 北京中卓时代消防装备科技有限公司 | Automatic control and alarming system for firefighting vehicle |
| CN201680972U (en) * | 2010-04-12 | 2010-12-22 | 青岛海泰自动化仪表有限公司 | Auto radiator thermal shock test table |
| CN201628497U (en) * | 2010-04-15 | 2010-11-10 | 山西汾西热能工程有限公司 | Double-tube clearance perfusion leakage alarming air cooler |
| CN102374009A (en) * | 2010-08-24 | 2012-03-14 | 通用汽车环球科技运作有限责任公司 | Coolant Surge Tank For Cooling System Of Combustion Engine For Vehicle |
| CN102454470A (en) * | 2010-10-19 | 2012-05-16 | 通用汽车环球科技运作有限责任公司 | Cooling system for an internal combustion engine, internal combustion engine and motor vehicle having an internal combustion engine |
| CN202012393U (en) * | 2011-01-02 | 2011-10-19 | 襄樊美标康盛动力科技有限公司 | Self-detection cooling system |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105471178A (en) * | 2015-12-07 | 2016-04-06 | 新疆金风科技股份有限公司 | Leakage protection apparatus and method for water-cooling system and water-cooling system of wind generator unit |
| CN105471178B (en) * | 2015-12-07 | 2019-04-26 | 新疆金风科技股份有限公司 | The escape protection device and method of water-cooling system, wind power generating set water-cooling system |
| CN111332094A (en) * | 2019-12-27 | 2020-06-26 | 黄山杰尔马热交换系统有限公司 | Anti-blocking warm air water tank |
| CN111948259A (en) * | 2020-07-31 | 2020-11-17 | 一汽解放汽车有限公司 | Detection method and detection device for vehicle coolant and vehicle |
| CN113606032A (en) * | 2021-08-31 | 2021-11-05 | 东风商用车有限公司 | Fault diagnosis control method and system for engine cooling system |
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| CN102705067B (en) | 2015-10-14 |
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