CN203520157U - Simulation testing device of central air-conditioning automatic control system - Google Patents
Simulation testing device of central air-conditioning automatic control system Download PDFInfo
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- CN203520157U CN203520157U CN201320591780.2U CN201320591780U CN203520157U CN 203520157 U CN203520157 U CN 203520157U CN 201320591780 U CN201320591780 U CN 201320591780U CN 203520157 U CN203520157 U CN 203520157U
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Abstract
The utility model relates to a simulation testing device of a central air-conditioning automatic control system, and belongs to the building energy-saving technical field. The simulation testing device is capable of realizing tests of basic operation functions, automatic operation functions and energy saving effects on objects to be tested, and the tests are more comprehensive. The simulation testing device is realized through the analog simulation technology; and compared with the prior art, water system equipment does not needed to be built, the investment is low, the technical risk is relatively little, the operation cost is low, and the realizability is high.
Description
Technical field
The utility model relates to a kind of simulation testing device of central air conditioner automatic control system, belongs to energy-saving building technology field.
Background technology
At present, building energy conservation has become the focus of public attention.Main energy consumption in building is from central air conditioner system, and in the face of energy-conservation, green, the environmental protection cry that grow to even greater heights, Energy Saving of Central Air-conditioning has become trend.In Energy Saving of Central Air-conditioning mode, applying full automatic energy-saving control system, adjust in real time the duty of equipment according to refrigeration requirement, realize energy-efficient operation, is a kind of energy saving means effective and applied widely, is progressively widely applied.
The control principle of full-automatic energy-saving control system and working strategies, directly affect energy-saving effect.Traditionally, detect the energy-saving effect of control system, need to apply it in entity building or a certain central air conditioner system of building specially, through operation after a while, by analyzing service data, just can reach a conclusion.The method is no doubt true, reliable, but drops into highly, and early stage, technical risk was large, and meanwhile, because China is across a plurality of climate zones, various places weather conditions are totally different, and test has certain limitation unavoidably.Given this, much automatic control system producer, when its energy-saving effect of publicity, all adopts the method for estimation or empirical data, and result is comparatively extensive.Therefore, design a kind of input, operating cost is lower, test operating mode is pressed close to on-the-spot actual environment, test result accurately proving installation and method of testing significant.
Utility model content
The purpose of this utility model is that the input existing in the test of existing control system is high in order to solve, early stage technical risk large, there is the circumscribed problem of certain test, a kind of simulation testing device of central air conditioner automatic control system is provided, this device can real time modelling central air conditioner system running state parameter, and record, analyze the instruction response that object to be measured makes according to the change of system running state, by the method for testing designing in advance, the functional completeness of test control system and energy-saving effect.
The purpose of this utility model is achieved through the following technical solutions.
The simulation testing device of a kind of central air conditioner automatic control system of the present utility model, object to be measured is central air conditioner automatic control system, object to be measured can Real-time Collection field apparatus or the running state parameter that transmits of analogue system, analysis, calculating and sending go out instruction, make equipment be operated in maximum efficiency interval; Peripherals is central air conditioning water system;
This simulation testing device comprises analog simulation test macro and runtime database;
Described analog simulation test macro comprises switch board, relay cabinet and man-machine interface control desk;
Described switch board is comprised of PLC, router, power supply and switch, and power supply is connected to the power supply interface of PLC and router via switch, in order to the power supply of control PLC and router;
Described relay cabinet is comprised of relay, power supply and switch; Power supply is used for to relay power supply, and switches by switch;
The PLC of switch board, by digital-quantity output interface, is connected with the relay of relay cabinet; PLC, by the variation of digital-quantity output interface state, drives relay coil action, thereby the valve opening and closing of the central air conditioning water system in actual motion is simulated; The relay contact of relay cabinet is connected with the digital-quantity input interface of object to be measured, thus the variation of the valve opening and closing process status signal of simulation central air conditioning water system;
The PLC of switch board is connected with the analog input interface of object to be measured by analog output interface circuit; Analog output interface circuit is for simulating the data of the various sensor collection transmission of central air conditioning water system, and sensor comprises flow sensor, Tube Temperature Sensor, outdoor temperature sensor, humidity sensor, plant capacity sensor and differential pressure pickup;
The PLC of switch board by digital quantity input, analog input interface is connected with digital output and the analog output interface circuit of object to be measured, for receiving the steering order that object to be measured sends, and instruction is made to response, steering order is sent to man-machine interface control desk, man-machine interface console instruction correctness judges simultaneously;
The PLC of switch board is connected with object digital communication interface to be measured by digital communication interface; The digital communication interface of PLC is for simulating all kinds of controlled plants of controlling by digital communication interface of central air conditioning water system; The PLC of switch board is by the communications protocol of all kinds of controlled plants of simulation, the variation of simulation controlled plant running state parameter, simultaneously, the PLC of switch board receives the steering order that object to be measured sends, and instruction is made to response, controlled plant comprise in handpiece Water Chilling Units, frequency converter, boiler, heat exchange unit more than one;
The PLC of switch board is connected to router by Ethernet interface, by Ethernet interface, be connected to again the computing machine of man-machine interface control desk, computing machine is used for receiving the also steering order of feedback man machine interface control platform, thereby changes the state of each interface, the different working of simulation central air conditioner;
Man-machine interface control desk is comprised of computing machine, pilot lamp, switch and power supply;
The power supply of man-machine interface control desk is connected to computing machine and pilot lamp via switch, and operation power supply is provided; Pilot lamp is used to indicate the duty of man-machine interface control desk; Computing machine is connected with the PLC of switch board via router by Ethernet interface;
Computing machine obtains central air conditioning water system running state parameter in runtime database, and running state parameter is sent to the PLC of switch board by Ethernet interface, simultaneously, computing machine receives the response to object steering order to be measured of PLC transmission, and record, the impact of analysis and Control instruction on central air conditioning water system operation conditions, draw test result;
Computing machine also will pass through the running status of figure, graph mode display simulation emulation test system, and realizes data recording, data derivation, report generation, printing function;
Runtime database records different regions, and the central air conditioning water system whole year operation data of different buildings can be exported according to practical application area and the building type of object to be measured, realize the accuracy of test;
Runtime database and analog simulation test macro have immediate data exchange.
The emulation test method of central air conditioner automatic control system, its test process is comprised of following steps:
1), according to testing requirement, by the computing machine of man-machine interface control desk, from runtime database, choose corresponding service data information;
2) on the computing machine of man-machine interface control desk, select successively manual test or test automatically, and make respective operations on object to be measured;
3) computing machine of man-machine interface control desk is according to perhaps automatic content measurement in manual test, the service data information that step 1) is obtained sends analog simulation test macro to, analog simulation test macro is in test process, real time modelling also responds the steering order that object to be measured sends, and steering order is sent to the computing machine of man-machine interface control desk, the computing machine of man-machine interface control desk passes through compare of analysis, correctness to steering order, rationality, amplitude of variation is analyzed, draw test result, the test of realization to object basic function to be measured and energy-saving effect,
4) test result shows on the computing machine of man-machine interface control desk, and realize data recording according to demand, data derivation, report generation, printing function.
Described step 2) manual test in is divided into following steps:
1) basic function test: normal response is made in the instruction that analog simulation test macro sends object to be measured, controls each controlled plant to object to be measured and completes basic operation function and test;
2) failure response test: the operating mode of equipment failure in analog simulation test macro simulation actual motion, failure alarm signal and the emergency protection measure of sending by recording object to be measured, complete the test of its failure response.
Described step 2) the automatic test in is divided into following steps:
1) operation test automatically
The automatic operational mode of object select to be measured, normal response is made in the instruction that analog simulation test macro sends object to be measured, and object to be measured, according to embedded program, sends steering order successively automatically, and indication controlled plant starts running successively; The response of analog simulation test macro recording instruction, complete the automatic operation test of object to be measured;
2) Energy Saving Control measure of merit
The central air conditioning water system running state parameter that object to be measured transmits according to analog simulation test macro, sends steering order in real time, adjusts the running status of controlled plant, makes it operate in optimum efficiency interval;
Analog simulation test macro receives in real time, records and analysis and Control instruction, converts thereof into corresponding energy consumption numerical value, thereby complete the test to object Energy Saving Control effect to be measured by calculating;
Analog simulation test macro also, by according to the data of runtime database, changes the central air conditioning water system running state parameter of simulation in real time, to simulate the central air conditioning water system controlled plant working of the whole year, realizes full test.
Beneficial effect
Because the operational factor of all central air conditioner systems can be converted to data parameters value, therefore only need obtain real service data, the simulation testing device that the utility model provides just can fully be simulated reduction running state of central air-conditioning system, make test result more accurately, closing to reality operating mode.
By changing data in runtime database described in the utility model, the central air conditioner system parameter of change simulation, just can simulate the central air conditioner system of different regions, different buildings, thereby realizes the dirigibility of measuring, and meanwhile, makes to measure more targeted.
Simulation testing device described in the utility model, can realize the test to object to be measured basis operation function, fully automatic operation function and energy-saving effect, tests more comprehensive.
Simulation testing device described in the utility model is without building water system equipment, drops into littlely, and technical risk is little, and operating cost is low, and realizability is high.
Accompanying drawing explanation
Fig. 1 is the composition schematic diagram of simulation testing device of the present utility model.
Embodiment
Below in conjunction with drawings and Examples, the utility model is further illustrated.
Embodiment
Fig. 1 is that the structure of simulation testing device forms schematic diagram, mainly comprises: analog simulation test macro and runtime database, also have in use necessary part of proving installation: object to be measured in addition.Analog simulation test macro mainly comprises: relay cabinet, switch board and man-machine interface control desk.Man-machine interface control desk and runtime database have immediate data exchange.Man-machine interface control desk carries out communication by the PLC in Ethernet interface and switch board; PLC passes through analog input, analog output, and digital quantity input, digital communication interface is directly connected with object to be measured; PLC, by digital-quantity output interface, via relay in relay cabinet, is connected with object to be measured, thereby realize complete communication, connects.
In order to illustrate further its principle of work, preferably an example is illustrated.
By man-machine interface control desk, select service data to be simulated, the present embodiment is chosen and is built place in Pekinese's project, overall refrigerating effect 3517KW, equipment mainly comprises: 4 handpiece Water Chilling Units, 4 chilled water pumps, 4 cooling-water pumps, 4 cooling towers and pipe valve.Dry run data are the service data on June 15th, 2012.
First by man-machine interface control desk, click this project, and select the date of the service data of needs simulation, the computing machine of man-machine interface control desk will be written into this project service data on the same day from runtime database automatically.
When selecting content measurement and starting to test, the computing machine of man-machine interface control desk is transferred to the PLC in switch board by Ethernet interface by service data, and data mainly comprise: the flow sensor of this time point, Tube Temperature Sensor, outdoor temperature and humidity sensor, plant capacity sensor, differential pressure pickup reference record value.PLC in switch board changes these parameters, and is transferred to object to be measured by analog output interface circuit.For the present embodiment, data are the record value at 8 o'clock in the morning, flow sensor reading is 168GPM, chilled water return water temperature sensor reading is 12.3 ℃, chilled water leaving water temperature sensor reading is 8.1 ℃, chilled water return water temperature sensor reading is 27.3 ℃, chilled water leaving water temperature sensor reading is 30.8 ℃, outdoor temperature sensor reading is 24.7 ℃, handpiece Water Chilling Units power is 91.3kW, and chilled water pump power is 36.3kW, and cooling-water pump power is 24kW, blower fan of cooling tower power is 4.7kW, and differential pressure pickup reading is 6bar.
Object to be measured is through calculating, convert these parameters to digital quantity, analog quantity, digital communication signal, form with steering order is transferred to switch board, switch board obtains steering order, make corresponding response, by digital quantity, analog quantity, digital communication interface, feed back to object to be measured on the one hand, feed back on the one hand man-machine interface control desk, the computer recording instruction feedback situation of man-machine interface control desk.
When service data changes, the computing machine of man-machine interface control desk is transferred to the PLC in switch board by Ethernet interface by new service data, and the PLC in switch board is transferred to object to be measured by these parameters.For the present embodiment, data are the record value in 8: 15 morning, flow sensor reading is 151GPM, chilled water return water temperature sensor reading is 11.1 ℃, chilled water leaving water temperature sensor reading is 7.7 ℃, and chilled water return water temperature sensor reading is 28.1 ℃, and chilled water leaving water temperature sensor reading is 30.6 ℃, outdoor temperature sensor reading is 25 ℃, and differential pressure pickup reading is 6bar.
Object to be measured is through calculating, and compare with the signal of previous moment, make the steering order after corresponding variation, convert these parameters to digital quantity, analog quantity, digital communication signal, with the form of steering order, be transferred to switch board, switch board obtains new steering order, make corresponding response, feed back to object to be measured, simultaneously, feed back to man-machine interface control desk, the new instruction feedback situation of computer recording of man-machine interface control desk.For the present embodiment, object to be measured is through calculating, comparative analysis, the conclusion that the system overall refrigerating effect of drawing reduces, and adjust in real time handpiece Water Chilling Units power to 67.3kW, and chilled water pump power is to 35kW, and cooling-water pump power is to 22.2kW, blower fan of cooling tower power is to 3.6kW, and by amended command to switch board, switch board is made response, and result feedback is carried out to record to the computing machine of man-machine interface control desk.
When the last item dry run data are made after response, system stops dry run test automatically, and the instruction feedback situation of all records and the actual running results or optimal result are contrasted, thereby draws test result.For the present embodiment, running data were 8 o'clock 15 minutes were recorded as: handpiece Water Chilling Units power is 68.5kW, chilled water pump power is 36kW, cooling-water pump power is 22.2kW, blower fan of cooling tower power is 3.6kW, and the result trend of exporting after calculating, comparative analysis with object to be measured is identical, and result is close, thereby can show that object to be measured reaches desired design effect in this test, controls the effective test result of function.
After determining testing requirement, choose the valve opening and closing control function of central air conditioning water system is tested.Afterwards, from runtime database, select service data, choose and build place in certain project of Shandong Province, 4 of project valve quantity.Subsequently, select test mode, choose manual test.Select after manual test, need to select content measurement, embodiment chooses basic function test.After selection, analog simulation test macro sends valve quantity to object to be measured, meanwhile, in man-machine interface, also can show valve test interface.Operating personnel point out according to man-machine interface, on object to be measured, operate, and send successively the instruction of opening 4 valves, and analog simulation test macro is received instruction and waited for 30 seconds, can send the opened signal of valve to object to be measured.Now, normal if object to be measured is controlled function, successfully send and open valve instruction, and receive the signal that analog simulation test macro sends, should change 4 valve states for opening, if it is undesired to control function, can not be shown as open mode.For embodiment, 1,2, No. 3 valve is normal to be shown openedly, and it is opened that No. 4 valves do not show, the concurrent warning of being out of order.On inspection, the feedback of status wiring that inner No. 4 valves of object to be measured are corresponding is wrong, revises after wiring, again No. 4 valves is tested, and recovers normal, and in object to be measured, No. 4 valves are being opened after order sends, and show state is for opening.System, after all content measurement carries out, exits test automatically, gets back to and selects test mode interface.For embodiment, test completes, and selects to exit, and system is automatically carried out data and gathered, and statistical test result tests 4 valves all by test, and function is normal, operating personnel's further execution graph table generation according to demand, output or printing.
Claims (4)
1. a simulation testing device for central air conditioner automatic control system, object to be measured is central air conditioner automatic control system, peripherals is central air conditioning water system;
It is characterized in that:
This simulation testing device comprises analog simulation test macro and runtime database;
Described analog simulation test macro comprises switch board, relay cabinet and man-machine interface control desk;
Described switch board is comprised of PLC, router, power supply and switch, and power supply is connected to the power supply interface of PLC and router via switch, in order to the power supply of control PLC and router;
Described relay cabinet is comprised of relay, power supply and switch; Power supply is used for to relay power supply, and switches by switch;
The PLC of switch board, by digital-quantity output interface, is connected with the relay of relay cabinet; PLC, by the variation of digital-quantity output interface state, drives relay coil action; The relay contact of relay cabinet is connected with the digital-quantity input interface of object to be measured;
The PLC of switch board is connected with the analog input interface of object to be measured by analog output interface circuit; Analog output interface circuit is for simulating the data of the various sensor collection transmission of central air conditioning water system, and sensor comprises flow sensor, Tube Temperature Sensor, outdoor temperature sensor, humidity sensor, plant capacity sensor and differential pressure pickup;
The PLC of switch board by digital quantity input, analog input interface is connected with digital output and the analog output interface circuit of object to be measured, for receiving the steering order that object to be measured sends, and instruction is made to response, steering order is sent to man-machine interface control desk, man-machine interface console instruction correctness judges simultaneously;
The PLC of switch board is connected with object digital communication interface to be measured by digital communication interface; The digital communication interface of PLC is for simulating all kinds of controlled plants of controlling by digital communication interface of central air conditioning water system; The PLC of switch board is by the communications protocol of all kinds of controlled plants of simulation, the variation of simulation controlled plant running state parameter, the PLC of switch board receives the steering order that object to be measured sends, and instruction is made to response, controlled plant comprise in handpiece Water Chilling Units, frequency converter, boiler, heat exchange unit more than one;
The PLC of switch board is connected to router by Ethernet interface, by Ethernet interface, be connected to again the computing machine of man-machine interface control desk, computing machine is used for receiving the also steering order of feedback man machine interface control platform, thereby changes the state of each interface, the different working of simulation central air conditioner;
Man-machine interface control desk is comprised of computing machine, pilot lamp, switch and power supply;
The power supply of man-machine interface control desk is connected to computing machine and pilot lamp via switch, and operation power supply is provided; Pilot lamp is used to indicate the duty of man-machine interface control desk; Computing machine is connected with the PLC of switch board via router by Ethernet interface;
Computing machine obtains central air conditioning water system running state parameter in runtime database, and running state parameter is sent to the PLC of switch board by Ethernet interface, simultaneously, computing machine receives the response to object steering order to be measured of PLC transmission, and record, the impact of analysis and Control instruction on central air conditioning water system operation conditions, draw test result.
2. the simulation testing device of a kind of central air conditioner automatic control system according to claim 1, it is characterized in that: computing machine passes through the running status of figure, graph mode display simulation emulation test system, and realizes data recording, data derivation, report generation, printing function.
3. the simulation testing device of a kind of central air conditioner automatic control system according to claim 1, it is characterized in that: runtime database records different regions, the central air conditioning water system whole year operation data of different buildings, export according to practical application area and the building type of object to be measured.
4. the simulation testing device of a kind of central air conditioner automatic control system according to claim 1, is characterized in that: runtime database and analog simulation test macro have immediate data exchange.
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| CN201320591780.2U CN203520157U (en) | 2013-09-24 | 2013-09-24 | Simulation testing device of central air-conditioning automatic control system |
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| CN201320591780.2U CN203520157U (en) | 2013-09-24 | 2013-09-24 | Simulation testing device of central air-conditioning automatic control system |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103472822A (en) * | 2013-09-24 | 2013-12-25 | 北京星达科技发展有限公司 | Simulation testing device and testing method of central air conditioner automatic control system |
| CN105511272A (en) * | 2014-10-10 | 2016-04-20 | Lg电子株式会社 | Central control apparatus, and facility control system and method |
-
2013
- 2013-09-24 CN CN201320591780.2U patent/CN203520157U/en not_active Withdrawn - After Issue
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103472822A (en) * | 2013-09-24 | 2013-12-25 | 北京星达科技发展有限公司 | Simulation testing device and testing method of central air conditioner automatic control system |
| CN103472822B (en) * | 2013-09-24 | 2015-08-19 | 北京星达科技发展有限公司 | A kind of simulation testing device of central air conditioner automatic control system and method for testing |
| CN105511272A (en) * | 2014-10-10 | 2016-04-20 | Lg电子株式会社 | Central control apparatus, and facility control system and method |
| US10156834B2 (en) | 2014-10-10 | 2018-12-18 | Lg Electronics Inc. | Central control apparatus for controlling facilities, facility control system comprising the same, and facility control method |
| CN105511272B (en) * | 2014-10-10 | 2019-10-25 | Lg电子株式会社 | Central control unit, apparatus control system and method |
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Granted publication date: 20140402 Effective date of abandoning: 20150819 |
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