CN102620395A - Intelligent air conditioning unit for track vehicle - Google Patents
Intelligent air conditioning unit for track vehicle Download PDFInfo
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- CN102620395A CN102620395A CN2012101253554A CN201210125355A CN102620395A CN 102620395 A CN102620395 A CN 102620395A CN 2012101253554 A CN2012101253554 A CN 2012101253554A CN 201210125355 A CN201210125355 A CN 201210125355A CN 102620395 A CN102620395 A CN 102620395A
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Abstract
The invention discloses an intelligent air conditioning unit for a track vehicle. The intelligent air conditioning unit comprises an embedded controller (EC) evaporation fan, an EC condensation fan, a variable frequency compressor, a stepless regulation electric heater, a stepless regulation fresh air door, a stepless regulation return air door and an intelligent controller, wherein the intelligent controller is connected with an air supply sensor, a load sensor, a return air sensor and a fresh air sensor; refrigerating and heating parts namely the EC evaporation fan, the EC condensation fan, the variable frequency compressor, the stepless regulation electric heater, the stepless regulation fresh air door and the stepless regulation return air door are connected with the intelligent controller and controlled by the intelligent controller; and the intelligent controller performs analog to digital conversion on a signal which is acquired by each sensor to obtain value quantity, generates a control instruction by using a fuzzy control system in the intelligent controller and drives the refrigerating and heating parts to operate. A stepless regulation structure is employed, the air conditioning unit is controlled by the intelligent controller, air quantity which is delivered to a track carriage is changed, the temperature field and speed field of the inner part of the carriage are stabilized, and the taking comfort of the track carriage is improved.
Description
Technical field
The present invention relates to rail traffic vehicles Air-conditioner design and manufacturing technology field, specifically, is a kind of used for rail vehicle intelligent air-conditioning unit
.
Background technology
Present at home and abroad traffic and transport field, track traffic (comprising city underground and light rail, inter-city passenger rail and intercity subway) has become each countries and regions public transport Development Trend.In modern society, people are very high to safety, convenient, comfortable requirement, also are like this to the requirement of track traffic.Therefore, to rail vehicle require increasingly high.And to satisfy these requirements, and rail vehicle must develop to intelligentized direction, and it has the difference on many 26S Proteasome Structure and Functions than existing rail vehicle.
With regard to the air-conditioning of rail vehicle; The air-conditioning unit that existing rail vehicle adopts generally is single cold type constant speed air-conditioning unit or cold-warm type air-conditioning unit; They generally all are the start and stop of controlling compressor, evaporation fan and condensation fan according to the requirement of temperature in the rail carriages, and the cylinder and the volume that when air-conditioning unit sub-load, adopt the platform number of compressor bypass, close compressor or unload compressor carry out the control of cold.These control methods to the air-conditioning unit make not only that the temperature fluctuation in the rail carriages is big, comfortableness is poor, and the energy consumption of air-conditioning unit is also big, and the energy consumption of the cold-warm type air-conditioning unit of especially charged heating is just bigger.Therefore objectively, not enough below the air-conditioning unit of current track vehicle exists:
(1) temperature fluctuation is big in the rail carriages.Because compressor adopts start and stop control, and requirement is arranged the shortest running time of compressor, so when sub-load; Start and stop compressor through frequent is controlled indoor temperature; Little when cold when output is big, can cause in the rail carriages temperature fluctuation bigger, the comfortableness that influence is taken.
(2) energy consumption is big.Adopt constant speed compressor the air-conditioning unit since one of frequent starting perhaps multiple compressors cause the loss of starting current and the energy loss of air-conditioning system.
(3) make the airflow field and the temperature field acute variation of rail carriages, do not reach inhomogeneity requirement.
Summary of the invention
The objective of the invention is to solve or partly address the above problem; A kind of used for rail vehicle intelligent air-conditioning unit is provided; Adopt stepless regulation structure spare; By intelligent controller each critical piece of air-conditioning unit is carried out " obfuscation " control, make the air-conditioning unit of rail vehicle have energy-conservation, as to make people's ride comfort advantage.
For realizing above-mentioned purpose, the technical scheme that the present invention adopts is following.
A kind of used for rail vehicle intelligent air-conditioning unit; Contain EC evaporation fan, EC condensation fan, frequency-changeable compressor, step-less adjustment electric heater, evaporimeter and condenser; The outlet of said evaporimeter links together through the import of copper pipe and frequency-changeable compressor; The outlet and the condenser inlet of said frequency-changeable compressor link together through copper pipe, and the outlet of said condenser and device for drying and filtering and liquid-sighting glass link together through copper pipe, and the outlet of said liquid-sighting glass links together through the import of copper pipe and expansion valve; The outlet of expansion valve and the import of evaporimeter link together, and form a refrigerating circuit system; Step-less adjustment electric heater and EC evaporation fan form a heating loop system; It is characterized in that be provided with the new air door of step-less adjustment at fresh wind port, the return air inlet in unit is equipped with step-less adjustment return air door; An intelligent controller is set and on intelligent controller, connects supply air sensor, load transducer, return air sensor and new wind sensor, said EC evaporation fan, EC condensation fan, frequency-changeable compressor, step-less adjustment electric heater, the new air door of step-less adjustment and step-less adjustment return air door and said intelligent controller are connected and receive the control of intelligent controller; Described intelligent controller with the signal of supply air sensor, load transducer, return air sensor and new wind sensor collection after analog-to-digital conversion converts numerical quantities to; The fuzzy control program inner through intelligent controller produces control instruction; Drive EC evaporation fan, EC condensation fan, frequency-changeable compressor, step-less adjustment electric heater, the new air door of step-less adjustment and step-less adjustment return air door; Make EC evaporation fan and EC condensation fan have the function of stepless DC speed regulation, make step-less adjustment electric heater, the new air door of step-less adjustment and step-less adjustment return air door have the function of step-less adjustment; Above-mentioned EC evaporation fan, EC condensation fan, frequency-changeable compressor, step-less adjustment electric heater, the new air door of step-less adjustment and step-less adjustment return air door and intelligent controller are assembled in the Stainless Steel Shell through the air-conditioning electric attachments, form an air-conditioning unit.
Further; Described intelligent controller carries out data acquisition, computing and control start and stop in kind of refrigeration cycle: through the temperature in the return air sensor acquisition trajectory compartment; Gather the temperature of air-conditioning air-out through supply air sensor; Gather the outer temperature of car through new wind sensor, after the intelligent controller internal calculation, obtain design temperature: the temperature in the rail carriages deducts the temperature difference e between the design temperature, and the fuzzy control temperature range of e is defined as-2 ℃≤e≤2 ℃; And temperature difference e is with respect to the rate of change e ' of acquisition time, and its fuzzy control scope is-0.5 ℃≤e '≤0.5, so just temperature has been carried out Fuzzy processing, with temperature difference e and difference variation rate e ' input intelligent controller; The computing of fuzzy control program draws refrigeration output percentage U in intelligent controller; And then control the voltage of EC condensation fan of EC evaporation fan and stepless DC speed regulation of frequency and the stepless DC speed regulation of frequency-changeable compressor according to this, thereby the temperature in the compartment is reached accurate control.
Further; The control model of described intelligent controller in heating process is: the EC evaporation fan through stepless DC speed regulation sucks gas in the rail carriages and through sending into rail carriages again after the heat exchange of step-less adjustment electric heater; Gather the temperature in the compartment through return air sensor; Gather the temperature of air-conditioning air-out through supply air sensor; Gather the outer temperature of car through new wind sensor, through obtaining design temperature after the intelligent controller internal calculation: the temperature in the compartment deducts the temperature difference e between the design temperature, and the temperature range of the fuzzy control of e is defined as-2 ℃≤e≤2 ℃; And temperature difference e is with respect to the rate of change e ' of acquisition time; Its fuzzy control scope is-0.5 ℃≤e '≤0.5; With temperature difference e and difference variation rate e ' input intelligent controller; Computing through fuzzy control program in the intelligent controller draws the ratio of specific heat that adds of output, and then controls the EC evaporation fan of the electric heater of step-less adjustment, stepless DC speed regulation and the EC condensating wind of stepless DC speed regulation according to this, thereby the temperature in the rail carriages is reached accurate control.
Further, adopt the motor of stepless speed regulation to control the new air door of step-less adjustment, the information by intelligent controller is gathered load transducer is transformed into digital quantity through analog-to-digital conversion; Then, intelligent controller is given the motor of stepless speed regulation according to the big or small output pwm signal of digital quantity, realizes the stepless speed regulation of the new air door of step-less adjustment.
Further, adopt the motor of stepless speed regulation to control step-less adjustment return air door, gather the signal that supply air sensor, load transducer, return air sensor and new wind sensor are gathered, be transformed into digital quantity through analog-to-digital conversion by intelligent controller; Then, intelligent controller is given the motor of stepless speed regulation according to the big or small output pwm signal of digital quantity, realizes the stepless speed regulation of step-less adjustment return air door.
The operation principle and the course of work of a kind of used for rail vehicle intelligent air-conditioning of the present invention unit are:
The EC evaporation fan of described stepless DC speed regulation sucks gas in rail carriages; Send into rail carriages again through the evaporimeter heat exchange then; Liquid refrigerant heat absorption back gasification in the evaporimeter is at this moment sucked by frequency-changeable compressor; The gas that becomes HTHP after compression gets into condenser, and the gas that from atmosphere, is sucked by the EC condensation fan of stepless DC speed regulation cools off, thereby becomes the liquid of high pressure low temperature; Get into evaporimeter once more after the throttling of process expansion valve at last, thereby form kind of refrigeration cycle one time.In whole kind of refrigeration cycle, adopt the control system of " obfuscation ", carry out data acquisition, computing and control by intelligent controller.
In the process of heating; The EC evaporation fan sucks gas in the rail carriages and through sending into rail carriages again after the heat exchange of step-less adjustment electric heater; Again through the same " obfuscation " control; Carry out data acquisition, computing and control by intelligent controller, draw clearly output and add ratio of specific heat, the temperature in the rail carriages is controlled thereby regulate electric heater, EC evaporation fan and EC condensation fan.
Said intelligent controller is a critical component of the present invention; It is through gathering the signal of supply air sensor, load transducer, return air sensor and new wind sensor; After analog-to-digital conversion converts numerical quantities to; Fuzzy control system through its set inside produces control instruction, drives the operation of refrigeration or heating; Make used for rail vehicle intelligent air-conditioning unit a safety, comfortable environment by bus, the energy consumption that can practice thrift the air-conditioning unit simultaneously are provided for the passenger.
The good effect of a kind of used for rail vehicle intelligent air-conditioning of the present invention unit is:
(1) controls stepless DC speed regulation EC blower fan, frequency-changeable compressor, step-less adjustment electric heater, the new air door of step-less adjustment and step-less adjustment return air door through the intelligent controller that adopts fuzzy algorithmic approach; Thereby reached adjusting to wind pushing temperature; The temperature fluctuation of rail carriages is diminished and can carry out the adjusting of temperature, reach purpose of energy saving according to the compartment load.
(2) owing to adopt EC blower fan, frequency-changeable compressor and the step-less adjustment electric heater of stepless DC speed regulation; On intelligent controller and Development of Software thereof, also to drop into; So on manufacturing cost, can increase to some extent, but the reduction of this air-conditioning unit later stage use cost can be offset the manufacturing cost of increase.
(3) at fresh wind port the new air door of step-less adjustment has been installed, has been overcome the deficiency that existing new air door has only the two states of "on" and "off", realized the step-less adjustment of new wind air quantity.
(4) return air inlet in unit has been installed step-less adjustment return air door, has overcome the deficiency that existing return air door has only the two states of "on" and "off", has realized the step-less adjustment of return air air quantity.
(5) through intelligent controller the air-conditioning unit is controlled, changed the air quantity that is sent to rail carriages, stablized the temperature field and the velocity field of interior, improved the comfortableness that rail carriages is taken.
Description of drawings
Fig. 1 is the present invention
OneThe structure of planting used for rail vehicle intelligent air-conditioning unit connects sketch map.
Label among the figure is respectively:
1, EC evaporation fan; 2, EC condensation fan; 3, frequency-changeable compressor; 4, step-less adjustment electric heater;
5, the new air door of step-less adjustment; 6, step-less adjustment return air door; 7, intelligent controller; 8, supply air sensor;
9, load transducer; 10, return air sensor; 11, new wind sensor; 12, evaporimeter; 13, expansion valve;
14, liquid-sighting glass; 15, device for drying and filtering; 16, condenser.
The specific embodiment
Further specify the present invention below in conjunction with accompanying drawing
OnePlant the specific embodiment of used for rail vehicle intelligent air-conditioning unit, but be noted that enforcement of the present invention is not limited to following embodiment.
Referring to accompanying drawing 1.A kind of used for rail vehicle intelligent air-conditioning unit contains the new air door 5 of EC condensation fan 2, frequency-changeable compressor 3, step-less adjustment electric heater 4, step-less adjustment and the step-less adjustment return air door 6 of the EC evaporation fan 1 of stepless DC speed regulation, stepless DC speed regulation.Said air conditioner structure can adopt present market that the structural member of supply is arranged.Described structural member is assembled: the outlet of said evaporimeter 12 import through copper pipe and frequency-changeable compressor 3 is linked together; The outlet and condenser 16 imports of said frequency-changeable compressor 3 are linked together through copper pipe, with the outlet of stating cold condenser 16 with
Device for drying and filtering 15Link together through copper pipe with liquid-sighting glass 14, the outlet of liquid-sighting glass 14 import through copper pipe and heating power expansion valve 13 is linked together, the outlet of expansion valve 13 and the import of evaporimeter 12 are linked together, form a refrigerating circuit system.Step-less adjustment electric heater 4 and EC evaporation fan 1 are constituted a heating loop system.
Fresh wind port at the air-conditioning unit is provided with a new air door 5 of step-less adjustment, at the return air inlet of air-conditioning unit a step-less adjustment return air door 6 is installed.
An intelligent controller 7 is set and on intelligent controller 7, connects a supply air sensor 8, load transducer 9, a return air sensor 10 and a new wind sensor 11.Described EC evaporation fan 1, EC condensation fan 2, frequency-changeable compressor 3, step-less adjustment electric heater 4, the new air door 5 of step-less adjustment and step-less adjustment return air door 6 are connected on the intelligent controller 7, make described parts accept the control of intelligent controller 7.
Said intelligent controller 7 is designed voluntarily and is developed by the applicant of this patent, and as main control chip, chip internal embeds the work that the fuzzy logic computing system is controlled each parts of air-conditioning by the DSP digital processing chip for it; Simultaneously, said intelligent controller 7 has RS232 and RS485 communication function, can realize that computer and rail vehicle network carry out real-time communication.The applicant of relevant technologies this patent will apply for that another patent requires protection, need like the implementer, and the applicant of this patent can provide correlation technique or product.
Said intelligent controller 7 can convert the signal that supply air sensor 8, load transducer 9, return air sensor 10 and new wind sensor 11 are gathered to numerical quantities through analog-to-digital conversion; Control through intelligent controller 7 inner Fuzzy control systems again, drive the new air door 5 of EC condensation fan 2, frequency-changeable compressor 3, step-less adjustment electric heater 4, step-less adjustment and the step-less adjustment return air door 6 of the EC evaporation fan 1 of stepless DC speed regulation, stepless DC speed regulation.
Above-mentioned cooling and warming parts and intelligent controller 7 are assembled in the Stainless Steel Shell through the air-conditioning electric attachments, form a basic used for rail vehicle intelligent air-conditioning unit of the present invention.
The above is merely preferred implementation of the present invention; Should be pointed out that for those skilled in the art, under the prerequisite that does not break away from structure according to the invention; Can also make some improvement and retouching, these improvement and retouching also should be regarded as in protection scope of the present invention.
Claims (5)
1. used for rail vehicle intelligent air-conditioning unit; Contain EC evaporation fan (1), EC condensation fan (2), frequency-changeable compressor (3), step-less adjustment electric heater (4), evaporimeter (12) and condenser (16); The outlet of said evaporimeter (12) links together through the import of copper pipe and frequency-changeable compressor (3); The outlet of said frequency-changeable compressor (3) and condenser (16) import link together through copper pipe; The outlet of said condenser (16) and device for drying and filtering (15) and liquid-sighting glass (14) link together through copper pipe; The outlet of said liquid-sighting glass (14) links together through the import of copper pipe and expansion valve (13), and the import of the outlet of expansion valve (13) and evaporimeter (12) links together, and forms a refrigerating circuit system; Step-less adjustment electric heater (4) forms a heating loop system with EC evaporation fan (1); It is characterized in that be provided with the new air door of step-less adjustment (5) at fresh wind port, the return air inlet in unit is equipped with step-less adjustment return air door (6); An intelligent controller (7) is set and goes up connection supply air sensor (8), load transducer (9), return air sensor (10) and new wind sensor (11), said EC evaporation fan (1), EC condensation fan (2), frequency-changeable compressor (3), step-less adjustment electric heater (4), the new air door of step-less adjustment (5) and step-less adjustment return air door (6) are connected and receive the control of intelligent controller (7) with said intelligent controller (7) at intelligent controller (7); The signal that described intelligent controller (7) is gathered supply air sensor (8), load transducer (9), return air sensor (10) and new wind sensor (11) is after analog-to-digital conversion converts numerical quantities to; The fuzzy control program inner through intelligent controller (7) produces control instruction; Drive EC evaporation fan (1), EC condensation fan (2), frequency-changeable compressor (3), step-less adjustment electric heater (4), the new air door of step-less adjustment (5) and step-less adjustment return air door (6); Make EC evaporation fan (1) and EC condensation fan (2) have the function of stepless DC speed regulation, make step-less adjustment electric heater (4), the new air door of step-less adjustment (5) and step-less adjustment return air door (6) have the function of step-less adjustment; Above-mentioned EC evaporation fan (1), EC condensation fan (2), frequency-changeable compressor (3), step-less adjustment electric heater (4), the new air door of step-less adjustment (5) and step-less adjustment return air door (6) and intelligent controller (7) are assembled in the Stainless Steel Shell through the air-conditioning electric attachments, form an air-conditioning unit.
2. a kind of used for rail vehicle intelligent air-conditioning unit according to claim 1; It is characterized in that; Described intelligent controller (7) carries out data acquisition, computing and control start and stop in kind of refrigeration cycle: through the temperature in return air sensor (10) the acquisition trajectory compartment; Gather the temperature of air-conditioning air-out through supply air sensor (8); Gather the outer temperature of car through new wind sensor (11), calculate design temperature through intelligent controller (7), the computing of passing through the interior fuzzy control program of intelligent controller (7) again draws refrigeration output percentage; And then control the voltage of EC condensation fan (2) of EC evaporation fan (1) and stepless DC speed regulation of frequency and the stepless DC speed regulation of frequency-changeable compressor (3) according to this, thereby the temperature in the compartment is reached accurate control.
3. a kind of used for rail vehicle intelligent air-conditioning unit according to claim 1; It is characterized in that; The control model of said intelligent controller (7) in heating process is: the EC evaporation fan (1) through stepless DC speed regulation sucks gas also through sending into rail carriages again after step-less adjustment electric heater (4) heat exchange in rail carriages; Gather the temperature in the compartment through return air sensor (10); Gather the temperature of air-conditioning air-out through supply air sensor (8); Gather the outer temperature of car through new wind sensor (11), after intelligent controller (7) calculates, obtain design temperature, the computing of passing through the interior fuzzy control program of intelligent controller (7) again draws the ratio of specific heat that adds of output; And then control the EC evaporation fan (1) of the electric heater (4) of step-less adjustment, stepless DC speed regulation and the EC condensating wind (2) of stepless DC speed regulation according to this, thereby the temperature in the rail carriages is reached accurate control.
4. a kind of used for rail vehicle intelligent air-conditioning unit according to claim 1; It is characterized in that; Adopt the motor of stepless speed regulation to control the new air door of step-less adjustment (5), the information by intelligent controller (7) is gathered load transducer (9) is transformed into digital quantity through analog-to-digital conversion; Then, intelligent controller (7) is given the motor of stepless speed regulation according to the big or small output pwm signal of digital quantity, realizes the stepless speed regulation of the new air door of step-less adjustment (5).
5. a kind of used for rail vehicle intelligent air-conditioning unit according to claim 1; It is characterized in that; Adopt the motor of stepless speed regulation to control step-less adjustment return air door (6); Gather the signal that supply air sensor (8), load transducer (9), return air sensor (10) and new wind sensor (11) are gathered by intelligent controller (7), be transformed into digital quantity through analog-to-digital conversion; Then, intelligent controller (7) is given the motor of stepless speed regulation according to the big or small output pwm signal of digital quantity, realizes the stepless speed regulation of step-less adjustment return air door (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210125355.4A CN102620395B (en) | 2012-04-26 | 2012-04-26 | Intelligent air conditioning unit for track vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210125355.4A CN102620395B (en) | 2012-04-26 | 2012-04-26 | Intelligent air conditioning unit for track vehicle |
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| Publication Number | Publication Date |
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| CN102620395A true CN102620395A (en) | 2012-08-01 |
| CN102620395B CN102620395B (en) | 2014-03-05 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210125355.4A Expired - Fee Related CN102620395B (en) | 2012-04-26 | 2012-04-26 | Intelligent air conditioning unit for track vehicle |
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| Country | Link |
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| CN (1) | CN102620395B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102975733A (en) * | 2012-12-31 | 2013-03-20 | 西安飞豹科技发展公司 | Air conditioner for high-speed magnetic levitation train |
| CN109059206A (en) * | 2018-06-14 | 2018-12-21 | 海信（山东）空调有限公司 | The control method of motor of air conditioner revolving speed |
| CN110293984A (en) * | 2019-07-04 | 2019-10-01 | 中车大连机车研究所有限公司 | A kind of rail traffic CO2Refrigerant air conditioning control method |
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| CN2552783Y (en) * | 2002-07-08 | 2003-05-28 | 朱明� | Electric air quantity regulating device for air conditioner of railway vehicle |
| EP2071251A1 (en) * | 2006-09-19 | 2009-06-17 | Daikin Industries, Ltd. | Air-conditioning control intermediate device, air-conditioning control system, air-conditioning control method, and air-conditioning control program |
| CN201803430U (en) * | 2010-06-13 | 2011-04-20 | 惠州市标顶空压技术有限公司 | Air-conditioning energy-saving controller in subway station |
| CN202613676U (en) * | 2012-04-26 | 2012-12-19 | 上海松芝轨道车辆空调有限公司 | Intelligent air conditioning unit for track vehicle |
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2012
- 2012-04-26 CN CN201210125355.4A patent/CN102620395B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2552783Y (en) * | 2002-07-08 | 2003-05-28 | 朱明� | Electric air quantity regulating device for air conditioner of railway vehicle |
| EP2071251A1 (en) * | 2006-09-19 | 2009-06-17 | Daikin Industries, Ltd. | Air-conditioning control intermediate device, air-conditioning control system, air-conditioning control method, and air-conditioning control program |
| CN201803430U (en) * | 2010-06-13 | 2011-04-20 | 惠州市标顶空压技术有限公司 | Air-conditioning energy-saving controller in subway station |
| CN202613676U (en) * | 2012-04-26 | 2012-12-19 | 上海松芝轨道车辆空调有限公司 | Intelligent air conditioning unit for track vehicle |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102975733A (en) * | 2012-12-31 | 2013-03-20 | 西安飞豹科技发展公司 | Air conditioner for high-speed magnetic levitation train |
| CN102975733B (en) * | 2012-12-31 | 2015-07-15 | 西安飞豹科技发展公司 | Air conditioner for high-speed magnetic levitation train |
| CN109059206A (en) * | 2018-06-14 | 2018-12-21 | 海信（山东）空调有限公司 | The control method of motor of air conditioner revolving speed |
| CN110293984A (en) * | 2019-07-04 | 2019-10-01 | 中车大连机车研究所有限公司 | A kind of rail traffic CO2Refrigerant air conditioning control method |
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| CN102620395B (en) | 2014-03-05 |
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