CN105698851A - An engineering machinery heat radiation system monitoring system and monitoring method - Google Patents

An engineering machinery heat radiation system monitoring system and monitoring method Download PDF

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Publication number
CN105698851A
CN105698851A CN201610058176.1A CN201610058176A CN105698851A CN 105698851 A CN105698851 A CN 105698851A CN 201610058176 A CN201610058176 A CN 201610058176A CN 105698851 A CN105698851 A CN 105698851A
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radiator
heat
exchange amount
heat exchange
transfer fluid
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CN105698851B (en
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徐舰波
赖凡
覃俊朝
王炜杰
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Guangxi Liugong Machinery Co Ltd
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Guangxi Liugong Machinery Co Ltd
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    • GPHYSICS
    • G01MEASURING; TESTING
    • G01DMEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
    • G01D21/00Measuring or testing not otherwise provided for
    • G01D21/02Measuring two or more variables by means not covered by a single other subclass

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Testing And Monitoring For Control Systems (AREA)
  • Testing Of Devices, Machine Parts, Or Other Structures Thereof (AREA)

Abstract

The invention relates to an engineering machinery heat radiation system monitoring system, and aims to solve problems of shortage of monitoring of an existing engineering machinery heat radiation system. The provided engineering machinery heat radiation system monitoring system comprises a control processing unit, a user panel and a parameter detection unit. The parameter detection unit comprises a flow detection apparatus used for detecting a flow of a liquid coolant, temperature sensors, a fan rotating speed sensor and a cooling air parameter detection apparatus. The temperature sensors are at an inlet and an outlet of a heat radiator. The control unit calculates a real-time heat exchange amount of the radiator according to the temperature difference of the liquid coolant at the inlet and the outlet and the flow of the liquid coolant, and obtains an ideal heat exchanged amount of the radiator according to the fan rotating speed and environmental air parameters. The real-time heat exchange amount and the ideal heat exchange amount of the heat radiator are compared and displayed on the user panel. According to the invention, the monitoring system and the monitoring method for the heat radiation system are realized; monitoring is carried out on the heat radiation efficiency of the engineering machinery heat radiation system; and when severe obstruction occurs to the heat radiation system, a prompt is given to a user to remind the user of cleaning the radiator, thereby guaranteeing stable and normal working of the engineering machinery.

Description

Engineering mechanical radiating system monitoring system and monitoring method
Technical field
The present invention relates to a kind of engineering mechanical radiating system, more particularly, it relates to a kind of engineering mechanical radiating system monitoring system and monitoring method。
Background technology
Engineering machinery is operated under severe work condition environment throughout the year, such as desert, jungle, mine etc.;Under this working environment, the air inlet side of radiator is very easy to block, fouling etc., causes that heat dispersion declines, causes oil consumption increase, noise to increase, temperature improves, the normal operation that impact is mechanical。Therefore, engineering machinery not only requires its cooling system function admirable, it is necessary to ensure that it is stable and reliable in work。
At the beginning of fansink designs, designer, by estimating its cleaning frequency, increases dirtiness resistance and carries out conservative design, make heat-sinking capability leave certain surplus;Simultaneously by arranging grid, filter screen, reduce the probability that radiator is blocked as far as possible。But in actual use, the cleaning frequency of radiator is subject to the impact of specific environment, and most of user can ignore the maintenance to radiator because of various reasons, thus causing that heat-sinking capability constantly declines, affects carrying out of normal operation。
Therefore, it is equipped with heat dispersion self-checking system, reminds user when radiator needs cleaning to safeguard in time, or process directly in conjunction with automatic cleaning apparatus, extremely important to ensure the continual and steady work of machinery。But, in current engineering machinery field, also there is no such application or invention。
Summary of the invention
The technical problem to be solved in the present invention is the problem do not monitored for existing engineering mechanical radiating system, and provides a kind of engineering mechanical radiating system monitoring system and monitoring method。
The present invention is such that providing a kind of engineering mechanical radiating system monitoring system for the technical scheme realizing its purpose, it is characterised in that include controlling Users panel, the parameter detecting unit that processing unit is connected with control unit;
Described parameter detecting unit include the flow detector for detecting the heat-transfer fluid flow parameter flowing through radiator in cooling system, for detect radiator heat-transfer fluid entrance and exit place fluid temperature (F.T.) temperature sensor, detection cooling system in radiating fan rotation speed rotation speed of the fan sensor, detection radiator local environment air parameter environmental parameter detection device;
Described control unit draws the desirable heat exchange amount of radiator according to acquired heat-transfer fluid entrance and exit place's fluid temperature (F.T.) and heat-transfer fluid flow rate calculation radiator real-time heat exchange amount, foundation radiating fan rotation speed and surrounding air parameter;Undertaken contrasting and showing on Users panel by the real-time heat exchange amount of radiator and desirable heat exchange amount。
As perfect condition engineering mechanical radiating system sets radiator not by dirt blocking attachment when design, the now heat radiation power (heat exchange amount) of radiator and the heat-conducting flow temperature flowing through radiator, ambient air temperature, ambient air humidity and the air velocity flowing through radiator, the air velocity flowing through radiator is relevant to the rotating speed of radiator fan, therefore can pass through to obtain the heat-conducting flow temperature flowing through radiator, ambient air temperature, the rotating speed of ambient air humidity and radiator fan calculates the desirable heat exchange amount of this radiator in cooling system that obtains, radiator and the extraneous real-time heat exchange amount of drawing with flow rate calculation is reduced in the temperature passing through to flow through the heat-transfer fluid of radiator, relatively real-time heat exchange amount and desirable heat exchange amount, if heat exchange amount and desirable heat exchange amount difference are too many in real time, namely when their ratio is less than predetermined value, then it is believed that radiator is serious by dirt blocking, monitoring system display alarm user on Users panel needs to clean。
In above-mentioned engineering mechanical radiating system monitoring system, described radiator is one or more in charge air cooler, torque-converters oil radiator, hydraulic oil radiator, engine radiator。
In above-mentioned engineering mechanical radiating system monitoring system, described flow detector is the flow transducer being arranged on radiator heat-transfer fluid closed circuit。Or described flow detector includes engine speed sensor and the temperature sensor in engine coolant exit。Within the engine, engine speed is relevant to the rotating speed of the coolant driving pump on engine coolant closed circuit, the temperature in engine coolant exit is relevant to electromotor thermostat opening aperture, drives the rotating speed of pump and electromotor thermostat opening aperture can calculate heat-transfer fluid flow by coolant。
In above-mentioned engineering mechanical radiating system monitoring system, environmental parameter detection device includes the temperature sensor of detection ambient air temperature and the humidity sensor of air humidity。
The present invention for realizing the disclosed another kind of technical scheme of its goal of the invention is: open a kind of engineering mechanical radiating system monitoring system and monitoring method, it is characterised in that comprise the steps:
Change heat Calculation step in real time: obtain the heat-transfer fluid temperature gap in heat-transfer fluid flow parameter and radiator heat-transfer fluid entrance and the exit flowing through radiator in cooling system and calculate the real-time heat exchange amount of radiator;
Desirable heat exchange amount obtaining step: obtain cooling system fan rotary speed parameter and the desirable heat exchange amount of surrounding air parameter calculating radiator;
Contrast step: the real-time heat exchange amount of radiator is contrasted with desirable heat exchange amount, the signal an alert when the ratio of real-time heat exchange amount and desirable heat exchange amount is less than predetermined value。
In above-mentioned engineering mechanical radiating system monitoring method, obtaining the heat-transfer fluid flow parameter flowing through radiator in cooling system is directly measure, by the flow transducer being arranged on radiator heat-transfer fluid closed circuit, the heat-transfer fluid flow flowing through radiator;Or obtain the temperature data in engine speed and engine coolant exit, show that the coolant on engine coolant closed circuit drives the rotating speed of pump by engine speed, the temperature in engine coolant exit draws electromotor thermostat opening aperture, drives the rotating speed of pump and electromotor thermostat opening aperture to calculate heat-transfer fluid flow by coolant。
In above-mentioned engineering mechanical radiating system monitoring method, the surrounding air parameter of acquisition includes ambient air temperature and ambient air humidity。
The present invention is compared with prior art, the invention solves engineering mechanical radiating system monitoring system and monitoring method, the radiating efficiency of engineering mechanical radiating system is monitored, when cooling system blocking is serious, radiator is cleared up by prompting user, thus ensureing that engineering machinery stablizes normal operation。
Accompanying drawing explanation
Fig. 1 is the schematic diagram of engineering mechanical radiating system of the present invention monitoring system;
Fig. 2 is Users panel schematic diagram in engineering mechanical radiating system monitoring system of the present invention;
Parts title and sequence number in figure:
Electromotor 1, thermostat 2, secondary water tank 3, air temperature sensor 4, air humidity sensor 42, air-density sensoring 43, ECU controller 5, Users panel 6, radiator inlet temperature sensor 71, flow transducer 72, radiator 8, radiator fan 9, rotation speed of the fan sensor 10, fluid pressure drive device 11, outlet tank temperature sensor 12, coolant drives pump 13。
Detailed description of the invention
Below in conjunction with accompanying drawing, specific embodiments is described。
Fig. 1 illustrates the detection system of a kind of engineering mechanical radiating system, electromotor 1 is included at this cooling system, the secondary water tank 2 etc. being connected with electromotor, the coolant of electromotor 1 is connected with radiator 8 by pipeline, radiator fan 9 is driven by fluid pressure drive device (hydraulic motor) 11, drive cooled external air to flow through radiator 9, carry out heat exchange with radiator 9 and take away heat。Electromotor 1 cooling water circulation loop is provided with thermostat 2 and coolant drives pump 13, the aperture of thermostat 2 is controlled by the temperature of coolant, and when coolant temperature reaches a timing, thermostat is opened, coolant drives in coolant and flows through radiator 9 under the driving of pump 13, flows in this systemic circulation;If coolant temperature is not reaching to predetermined value, thermostat 2 cuts out, and the cooled liquid of coolant drives pump 13 to flow in electromotor 1 coolant partial circulating。
The control unit of the monitoring system of this cooling system is ECU controller 5, monitoring system also includes detection air themperature, humidity, the ambient parameter detection dress of density, they are followed successively by air temperature sensor 41, air humidity sensor 42, air-density sensoring 43, the rotation speed of the fan sensor 10 of detection radiating fan rotation speed it is provided with in the position of radiator fan 9, the heat-transfer fluid of radiator namely the porch of coolant are provided with the radiator inlet temperature sensor 71 for detecting coolant inlet temperature, it is additionally provided with the flow transducer 72 for detecting coolant inflow radiator flow in this porch simultaneously, the outlet tank temperature sensor 12 for detecting cooling liquid outlet temperature it is provided with in the heat-transfer fluid exit of radiator。These sensors are connected and teach to it related data with ECU controller, and user face 6 is display device, is connected with ECU controller 5, is used for showing related data。
In the present embodiment, ECU controller 5 flows through the parameters such as the cooling temperature of air, humidity, the density of radiator by air parameter sensor acquisition, obtain the rotating speed of radiator fan by rotation speed of the fan sensor, obtained the coolant temperature entering into the temperature of coolant in radiator, being obtained outflow radiator by outlet tank temperature sensor 12 by radiator inlet temperature sensor 71, obtained the flow of inflow radiator by flow transducer 72。ECU controller calculates the real-time heat exchange amount of radiator according to the flow of coolant and the temperature difference in radiator inlet and exit that enter radiator;It is in desirable heat exchange amount during optimum performance state by rotation speed of the fan, cooling air parameter (temperature, density, humidity etc.), radiator inlet and the temperature in exit and the flow rate calculation radiator of inflow radiator。Optimum performance state assumes that the situation that radiator is not blocked by dirt。Under optimum performance state, the heat exchange amount of radiator is except outside the Pass having with the inlet temperature of coolant and outlet temperature, inflow flow, also relevant with the cooling air temperature flowing through radiator, humidity, density and speed, the flow velocity of air is relevant to the rotating speed of radiator fan, therefore can calculate radiator heat exchange amount ideally according to the rotating speed of the parameter of cooling air and radiator fan。The real-time heat exchange amount of radiator is calculated by the coolant rate of the temperature difference in radiator inlet and exit and inflow radiator。Carry out test when computing formula is designed by cooling system to revise, be stored in ECU controller。
Fig. 2 is Users panel schematic diagram;Correlation calculation result is sent to Users panel and shows by ECU controller, as shown in the figure, LCDs 61 shows total heat exchange amount of certain section of time intrinsic motivation radiator, display screen 62 shows the radiating efficiency percent of current radiators, pointer 63 indicates current radiators radiating efficiency pointer to indicate, display screen 64 shows the instant heat radiation power (kW) of current radiators, and pointer 65 indicates current water to dissipate the instruction of instant heat radiation power pointer。When the ratio of the real-time heat exchange amount of radiator with desirable heat exchange amount is consistently less than certain value, then it is assumed that radiator is subject to the blocking of dirt and reaches to a certain degree, it is necessary to cleaning, now sends alarm signal, user is reminded to carry out radiator safeguarding cleaning。
In the present embodiment, hysteresis quality due to coolant flow, detection in real time obtains parameter can be delayed accordingly, as detected that outlet tank temperature is Tout in the t1 moment, corresponding inlet temperature is not the Tin in t1 moment, and Tin ', the △ T of △ T time is that coolant is by radiator inlet stream to the time exported before should being the t1 moment;Therefore needing when calculating detected signal is processed, the signal that this patent took in a period of time is averaged, and the sampling time is more than 2 times of △ T。
In the present embodiment, have employed many sensors for obtaining relevant parameter, and in actual use, it is relevant for having all multiparameters in engineering mechanical radiating system, engine radiator such as, cool down the flow of water and the aperture of thermostat in transmitter and in electromotor coolant drive the pump speed of pump to be relevant, wherein thermostat aperture is relevant with the temperature that engine coolant exports (radiator coolant entrance) again, the rotating speed of coolant driving pump is relevant to the rotating speed of electromotor, can be calculated by following formula hence into coolant rate in engine radiator:
Q=f (k, n, T, Q1)
In formula, k coolant drives the gear ratio of pump and electromotor;N engine speed;T engine outlet coolant temperature;Q1Engine coolant reference flow。
Partial engine has temperature real time monitoring function, can output engine coolant temperature and inlet temperature, therefore can read electromotor to be correlated with the instant heat exchange amount (namely in real time heat exchange amount) carrying parameter that induction apparatus monitors to carry out radiator when implementing, thus reducing the sensor of detection coolant rate and temperature。Hydraulically driven fan cooling system simultaneously for temperature control, radiating fan rotation speed is the function of coolant temperature, therefore can read the temperature value of coolant to calculate radiating fan rotation speed when implementing for this kind of cooling system, thus reduce radiating fan rotation speed sensor。Equally, if engineering machinery has ambient temperature, humidity real time monitoring function, then the monitoring system of cooling system can also read relevant parameter, such that it is able to reduce air themperature, humidity sensor etc., the quantity of sensor special in monitoring system is simplified。
In the present embodiment, in cooling system except comprising above-mentioned engine radiator, also generally including the radiators such as other radiators such as charge air cooler, torque-converters oil is scattered, hydraulic oil dissipates, the heat radiation monitoring of these radiators can also be monitored system according to engine radiator and analogously be carried out arrangement design。

Claims (9)

1. an engineering mechanical radiating system monitoring system, it is characterised in that include controlling Users panel, the parameter detecting unit that processing unit is connected with control unit;
Described parameter detecting unit include the flow detector for detecting the heat-transfer fluid flow parameter flowing through radiator in cooling system, for detect radiator heat-transfer fluid entrance and exit place fluid temperature (F.T.) temperature sensor, detection cooling system in radiating fan rotation speed rotation speed of the fan sensor, detection radiator local environment air parameter environmental parameter detection device;
Described control unit draws the desirable heat exchange amount of radiator according to acquired heat-transfer fluid entrance and exit place's fluid temperature (F.T.) and heat-transfer fluid flow rate calculation radiator real-time heat exchange amount, foundation radiating fan rotation speed and surrounding air parameter;Undertaken contrasting and showing on Users panel by the real-time heat exchange amount of radiator and desirable heat exchange amount。
2. engineering mechanical radiating system according to claim 1 monitoring system, it is characterised in that described radiator is one or more in charge air cooler, torque-converters oil radiator, hydraulic oil radiator。
3. engineering mechanical radiating system according to claim 1 and 2 monitoring system, it is characterised in that described radiator includes engine radiator。
4. engineering mechanical radiating system according to claim 3 monitoring system, it is characterised in that described flow detector is the flow transducer being arranged on radiator heat-transfer fluid closed circuit。
5. engineering mechanical radiating system according to claim 3 monitoring system, it is characterised in that described flow detector includes engine speed sensor and the temperature sensor in engine coolant exit。
6. engineering mechanical radiating system according to claim 1 and 2 monitoring system, it is characterised in that environmental parameter detection device includes the temperature sensor of detection ambient air temperature and the humidity sensor of air humidity。
7. an engineering mechanical radiating system monitoring system and monitoring method, it is characterised in that comprise the steps:
Change heat Calculation step in real time: obtain the heat-transfer fluid temperature gap in heat-transfer fluid flow parameter and radiator heat-transfer fluid entrance and the exit flowing through radiator in cooling system and calculate the real-time heat exchange amount of radiator;
Desirable heat exchange amount obtaining step: obtain cooling system fan rotary speed parameter and the desirable heat exchange amount of surrounding air parameter calculating radiator;
Contrast step: the real-time heat exchange amount of radiator is contrasted with desirable heat exchange amount, the signal an alert when the ratio of real-time heat exchange amount and desirable heat exchange amount is less than predetermined value。
8. engineering mechanical radiating system monitoring method according to claim 7, it is characterised in that obtaining the heat-transfer fluid flow parameter flowing through radiator in cooling system is directly measure, by the flow transducer being arranged on radiator heat-transfer fluid closed circuit, the heat-transfer fluid flow flowing through radiator;Or obtain the temperature data in engine speed and engine coolant exit, show that the coolant on engine coolant closed circuit drives the rotating speed of pump by engine speed, the temperature in engine coolant exit draws electromotor thermostat opening aperture, drives the rotating speed of pump and electromotor thermostat opening aperture to calculate heat-transfer fluid flow by coolant。
9. engineering mechanical radiating system monitoring method according to claim 7, it is characterised in that the surrounding air parameter of acquisition includes ambient air temperature and ambient air humidity。
CN201610058176.1A 2016-01-28 2016-01-28 Engineering mechanical radiating system monitors system and monitoring method Active CN105698851B (en)

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Cited By (14)

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CN106677883A (en) * 2016-12-14 2017-05-17 山推工程机械股份有限公司 Cooling system and control method thereof
CN107044391A (en) * 2017-06-15 2017-08-15 国电联合动力技术有限公司 A kind of Wind turbines cooling system
CN107631891A (en) * 2017-08-08 2018-01-26 华晨汽车集团控股有限公司 The method of testing of engine with supercharger cooling system function
CN107748076A (en) * 2017-12-01 2018-03-02 新乡市豫新航空工业制品有限公司 A kind of radiator combustion oil check conversion pipe-line system
CN107941851A (en) * 2017-12-20 2018-04-20 广州威能机电有限公司 The performance testing device and its test method of a kind of heat radiator of internal-combustion engine
CN108981799A (en) * 2018-06-22 2018-12-11 中国矿业大学(北京) A kind of Portable low-temp environmental parameter monitoring warning device and method
CN109357853A (en) * 2018-10-30 2019-02-19 山推工程机械股份有限公司 A kind of radiator choke detecting method and system
CN109540538A (en) * 2018-08-27 2019-03-29 浙江中车电车有限公司 A kind of bus cooling-system system failure analysis method and system
CN109853658A (en) * 2019-03-21 2019-06-07 柳州柳工挖掘机有限公司 Radiator dust pelletizing system and Work machine
CN111927615A (en) * 2020-08-19 2020-11-13 潍柴动力股份有限公司 Cooling liquid temperature display method and equipment
CN113309605A (en) * 2021-06-10 2021-08-27 潍柴动力股份有限公司 Method for monitoring cooling efficiency of vehicle intercooler
CN114320564A (en) * 2022-01-19 2022-04-12 上海世德子汽车零部件有限公司 Engine coolant delivery control method and system
CN117348452A (en) * 2023-11-03 2024-01-05 东营市胜凯石化设备有限公司 Energy-saving control system of petroleum refining air cooler
CN118329495A (en) * 2024-06-11 2024-07-12 常州益众电气有限公司 Radiator detection device and detection method thereof

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CN106677883B (en) * 2016-12-14 2019-11-15 山推工程机械股份有限公司 A kind of control method of cooling system
CN106677883A (en) * 2016-12-14 2017-05-17 山推工程机械股份有限公司 Cooling system and control method thereof
CN107044391A (en) * 2017-06-15 2017-08-15 国电联合动力技术有限公司 A kind of Wind turbines cooling system
CN107044391B (en) * 2017-06-15 2023-08-04 国电联合动力技术有限公司 Cooling system of wind turbine generator
CN107631891A (en) * 2017-08-08 2018-01-26 华晨汽车集团控股有限公司 The method of testing of engine with supercharger cooling system function
CN107748076A (en) * 2017-12-01 2018-03-02 新乡市豫新航空工业制品有限公司 A kind of radiator combustion oil check conversion pipe-line system
CN107748076B (en) * 2017-12-01 2023-09-12 河南新航航空设备科技有限公司 Conversion pipeline system for detecting fuel oil of radiator
CN107941851A (en) * 2017-12-20 2018-04-20 广州威能机电有限公司 The performance testing device and its test method of a kind of heat radiator of internal-combustion engine
CN108981799A (en) * 2018-06-22 2018-12-11 中国矿业大学(北京) A kind of Portable low-temp environmental parameter monitoring warning device and method
CN108981799B (en) * 2018-06-22 2023-09-22 中国矿业大学(北京) Portable low-temperature environment parameter monitoring and early warning device and method
CN109540538A (en) * 2018-08-27 2019-03-29 浙江中车电车有限公司 A kind of bus cooling-system system failure analysis method and system
CN109357853A (en) * 2018-10-30 2019-02-19 山推工程机械股份有限公司 A kind of radiator choke detecting method and system
CN109853658A (en) * 2019-03-21 2019-06-07 柳州柳工挖掘机有限公司 Radiator dust pelletizing system and Work machine
CN109853658B (en) * 2019-03-21 2021-05-14 柳州柳工挖掘机有限公司 Radiator dust removal system and operation machinery
CN111927615A (en) * 2020-08-19 2020-11-13 潍柴动力股份有限公司 Cooling liquid temperature display method and equipment
CN111927615B (en) * 2020-08-19 2021-10-29 潍柴动力股份有限公司 Cooling liquid temperature display method and equipment
CN113309605B (en) * 2021-06-10 2022-11-29 潍柴动力股份有限公司 Method for monitoring cooling efficiency of vehicle intercooler
CN113309605A (en) * 2021-06-10 2021-08-27 潍柴动力股份有限公司 Method for monitoring cooling efficiency of vehicle intercooler
CN114320564A (en) * 2022-01-19 2022-04-12 上海世德子汽车零部件有限公司 Engine coolant delivery control method and system
CN117348452A (en) * 2023-11-03 2024-01-05 东营市胜凯石化设备有限公司 Energy-saving control system of petroleum refining air cooler
CN117348452B (en) * 2023-11-03 2024-03-12 东营市胜凯石化设备有限公司 Energy-saving control system of petroleum refining air cooler
CN118329495A (en) * 2024-06-11 2024-07-12 常州益众电气有限公司 Radiator detection device and detection method thereof

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