CN103822337A - Energy-saving adjusting method and device for air conditioner end equipment - Google Patents
Energy-saving adjusting method and device for air conditioner end equipment Download PDFInfo
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- CN103822337A CN103822337A CN201410081318.7A CN201410081318A CN103822337A CN 103822337 A CN103822337 A CN 103822337A CN 201410081318 A CN201410081318 A CN 201410081318A CN 103822337 A CN103822337 A CN 103822337A
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Abstract
The invention discloses an energy-saving adjusting method and device for air conditioner end equipment, and belongs to automatic control of heat ventilation and air-conditioning. The method comprises the following steps: acquiring the temperatures, humidity and pressure difference of an air supply pipe and an exhaust pipe, and acquiring the water temperature and flow of a heat exchanger; calculating the total energy consumption of each unit by combining different air volumes and cooling water mounts; selecting a matched combination of the air volume and the water amount corresponding to the minimum total energy consumption, and adjusting the running parameters of a fan and the heat exchanger according to the combination. The device comprises a blower, a return fan, a heat exchanger and a control system, wherein the blower (4), the return fan (1), an electric control valve (11), a carbon dioxide concentration sensor (2) and a return air temperature and humidity sensor (3) on the exhaust pipe (6), a fresh air temperature and humidity sensor (19), a blast air temperature and humidity sensor (8) and a mixed air temperature and humidity sensor (18) on a blast pipe (7), a temperature sensor (10) and a flow sensor (17) on the heat exchanger (22), and a pressure difference sensor (5) between the blast pipe and the exhaust pipe are electrically connected with the control system (16) respectively.
Description
Technical field
The present invention relates to a kind of power-economizing method of central air-conditioning, relate in particular to the energy-conservation control method of a kind of air conditioner end equipment; The invention still further relates to a kind of self-checking device of realizing the method.
background technology:as everyone knows, at present central air conditioner system utilizes the air conditioner end equipments such as new blower fan group, air-conditioning unit, variable air rate case by outdoor new wind or by the processing of lowering the temperature of outdoor new wind and indoor return air conventionally, after pressurization, be transported to again the air conditioning area of each end, thereby improve indoor environment temperature.But due to air conditioner end equipment design feature difference, for the identical air conditioner end equipment for cold, its coil pipe row, spacing of fin etc. are not quite similar, corresponding water resistance characteristic and windage characteristic are also different; Therefore in actual motion, the air output of end equipment of central air conditioner system adopts respectively different adjustment control methods from cold water flow, between corresponding air quantity and the water yield, lack and coordinate to control, cause can there be multiple different combinations matches mode from the water yield meeting air quantity under identical air conditioner load conditions of demand, thereby be difficult to take into account the transmission & distribution efficiency of air-conditioner water system and the Energy Efficiency Ratio of air conditioning terminal.In the time of the workload demand of part air conditioning terminal, there is the extreme case of two kinds of combinations matches: adopt larger air output to coordinate less cold water flow, or adopt less air output to coordinate larger cold water flow; There is the defect that the Energy Efficiency Ratio of air conditioning terminal is lower in the former, the latter exists the lower defect of transmission & distribution efficiency of air-conditioner water system.
summary of the invention:in order to overcome the above-mentioned defect existing in prior art, the present invention aims to provide and a kind ofly can ensure that air conditioner end equipment fan energy consumption and air conditioner cold water transmission & distribution energy consumption sum are the minimum energy-conservation control method of air conditioner end equipment; Another object of the present invention is to provide a kind of device of realizing this control method.
To achieve these goals, method provided by the invention comprises data acquisition, parameter computing and regulates control; Concrete steps are as follows:
1) data acquisition, return air temperature and the humidity of collection exhaust duct porch, EAT and the humidity in collection ajutage two-port and stage casing, gather ajutage and export the pressure differential between exhaust duct entrance, gathers leaving water temperature and the flow of inlet water of heat exchanger;
2) parameter computing, goes out different return air amounts, air output and cooling water inflow according to above-mentioned each calculation of parameter and combines the each group of total energy consumption obtaining, and calculates the enthalpy of the front air of surface cooler;
3) regulate and control, the combination of mating according to the minimum corresponding air quantity of load selection total energy consumption of air conditioner end equipment with the water yield, and according to the operational factor of this combination adjustment return fan, pressure fan and heat exchanger.
Device provided by the invention comprises the control system that is provided with the ajutage of pressure fan and heat exchanger, is communicated with and is provided with the exhaust duct of return fan and described pressure fan, return fan and heat exchanger are controlled with this ajutage by mixing wind tube, pressure fan, return fan, and the electrically-controlled valve being located on heat exchanger outlet pipe is electrically connected with control system respectively, be located at gas concentration lwevel sensor and the warm and humid sensor of return air of exhaust duct porch, be located at the new wind-warm syndrome wet sensor of ajutage porch, be located at the warm and humid sensor of air-supply in this ajutage exit, be located at the mixed wind-warm syndrome wet sensor between mixing wind tube outlet and ajutage outlet, be located at the temperature sensor on heat exchanger outlet pipe, be located at the flow sensor on this heat exchanger water inlet pipe, and the differential pressure pickup being located between exhaust duct entrance and ajutage outlet is electrically connected with control system respectively, the display screen that described control system is electrically connected with it by central controller, respectively and distribution control module, the frequency converter being electrically connected with this distribution control module form.
Compared with the prior art, the present invention is owing to having adopted technique scheme, the control system that has adopted central controller, distribution control module and frequency converter to form, and utilize and be located at respectively multiple Temperature Humidity Sensors in entering of ajutage and exhaust duct, be located at differential pressure pickup between ajutage and exhaust duct, be located at temperature sensor and flow sensor on heat exchanger; Therefore can be according to the cooling water temperature of heat exchanger under the pressure reduction between the temperature of the air-supply collecting under different air quantity and return air and humidity, ajutage and exhaust duct and different flow, calculating the corresponding air conditioner end equipment fan energy consumption of different air quantity and the corresponding air conditioner cold water transmission & distribution of different water yield energy consumption, is minimum combination thereby find out air conditioner end equipment fan energy consumption and air conditioner cold water transmission & distribution energy consumption sum in identical air conditioner load situation.According to the corresponding air quantity operational factor of this combination and water yield operational factor, dynamic coordinate air output and cooling water flow, thus take into account the transmission & distribution efficiency of air-conditioner water system and air conditioning terminal Energy Efficiency Ratio reaches optimum.
accompanying drawing explanation:
Fig. 1 is structural principle schematic diagram of the present invention.
In figure: warm and humid sensor 3 pressure fan 4 differential pressure pickup 5 exhaust duct 6 ajutages 7 of return fan 1 gas concentration lwevel sensor 2 return air warm and humid sensor 8 mixed new wind-warm syndrome wet sensor 19 mixing wind tube 20 return air electric control gear 21 heat exchangers 22 of wind-warm syndrome wet sensor 18 of electric control gear 9 temperature sensor 10 electrically-controlled valve 11 frequency converter 12 distribution control module 13 central controller 14 display screen 15 control system 16 flow sensors 17 of blowing of blowing
the specific embodiment:below in conjunction with accompanying drawing and specific embodiment, the invention will be further described:
Method provided by the invention is as follows:
1) data acquisition, return air temperature and the humidity of collection exhaust duct porch, EAT and the humidity in collection ajutage two-port and stage casing, gather ajutage and export the pressure differential between exhaust duct entrance, gathers leaving water temperature and the flow of inlet water of heat exchanger;
2) parameter computing, goes out each group of total energy consumption of different return air amounts, air output and cooling water inflow combination gained according to above-mentioned each calculation of parameter, calculate the enthalpy of air before surface cooler;
3) regulate and control, the combination of mating according to the minimum corresponding air quantity of load selection total energy consumption of air conditioner end equipment with the water yield, and according to the operational factor of this combination adjustment return fan, pressure fan and heat exchanger.
Device provided by the invention is as shown in Figure 1: the ajutage 7 that is provided with pressure fan 4 and heat exchanger 22 is communicated with the exhaust duct 6 that is provided with return fan 1 by mixing wind tube 20, pressure fan 4 is by air-supply electric control gear 9, return fan 1 is by air-supply electric control gear 21, heat exchanger 22 is electrically connected with control system 16 respectively by the electrically-controlled valve 11 being located on outlet pipe, be located at gas concentration lwevel sensor 2 and the warm and humid sensor 3 of return air of exhaust duct 6 porch, be located at the new wind-warm syndrome wet sensor 19 of ajutage 7 porch, be located at the warm and humid sensor 8 of air-supply in this ajutage exit, be located at the mixed wind-warm syndrome wet sensor 18 between mixing wind tube 20 outlets and ajutage 7 outlets, be located at the temperature sensor 10 on heat exchanger 22 outlet pipes, be located at the flow sensor 17 on this heat exchanger water inlet pipe, and the differential pressure pickup 5 being located between exhaust duct 6 entrances and ajutage 7 outlets is electrically connected with control system 16 respectively, described control system by central controller 14, respectively with it the display screen 15 of electrical connection and distribution control module 13, the frequency converter 12 being electrically connected with this distribution control module form.
Operation principle: model is the parameter of the central controller 14 of LCU-SW I and LCU-ST distribution control module 13 acquisition stream quantity sensors 17, temperature sensor 10, each described Temperature Humidity Sensor, differential pressure pickup 5, gas concentration lwevel sensor 2, through calculating, sending control instruction after relatively, regulate the aperture of electrically-controlled valve 11 and the output frequency of frequency converter 12, make air conditioner end equipment fan energy consumption and air conditioner cold water transmission & distribution energy consumption sum minimum, thereby transmission & distribution efficiency and the air conditioning terminal Energy Efficiency Ratio of taking into account air-conditioner water system are optimized.
Claims (1)
1. the energy-conservation control method of air conditioner end equipment, comprises data acquisition, parameter computing and regulates and control; It is characterized in that concrete steps are as follows:
(1) data acquisition, return air temperature and the humidity of collection exhaust duct porch, EAT and the humidity in collection ajutage two-port and stage casing, gather ajutage and export the pressure differential between exhaust duct entrance, gathers leaving water temperature and the flow of inlet water of heat exchanger;
(2) parameter computing, goes out different return air amounts, air output and cooling water inflow according to above-mentioned each calculation of parameter and combines the each group of total energy consumption obtaining, and calculates the enthalpy of the front air of surface cooler;
(3) regulate and control, the combination of mating according to the minimum corresponding air quantity of load selection total energy consumption of air conditioner end equipment with the water yield, and according to the operational factor of this combination adjustment return fan, pressure fan and heat exchanger.
Realize a device for the energy-conservation control method of air conditioner end equipment claimed in claim 1, comprise the control system that is provided with the ajutage of pressure fan and heat exchanger, is communicated with and is provided with the exhaust duct of return fan and described pressure fan, return fan and heat exchanger are controlled with this ajutage by mixing wind tube, it is characterized in that: pressure fan (4), return fan (1), and the electrically-controlled valve (11) being located on heat exchanger (22) outlet pipe is electrically connected with control system (16) respectively, be located at gas concentration lwevel sensor (2) and the warm and humid sensor of return air (3) of exhaust duct (6) porch, be located at the new wind-warm syndrome wet sensor (19) of ajutage (7) porch, be located at the warm and humid sensor of air-supply (8) in this ajutage exit, be located at the mixed wind-warm syndrome wet sensor (18) between mixing wind tube (20) outlet and ajutage (7) outlet, be located at the temperature sensor (10) on heat exchanger (22) outlet pipe, be located at the flow sensor (17) on this heat exchanger water inlet pipe, and the differential pressure pickup (5) being located between exhaust duct (6) entrance and ajutage (7) outlet is electrically connected with control system (16) respectively, the display screen (15) that described control system is electrically connected with it by central controller (14), respectively and distribution control module (13), the frequency converter (12) being electrically connected with this distribution control module form.
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| CN201410081318.7A CN103822337A (en) | 2014-03-07 | 2014-03-07 | Energy-saving adjusting method and device for air conditioner end equipment |
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| CN201410081318.7A CN103822337A (en) | 2014-03-07 | 2014-03-07 | Energy-saving adjusting method and device for air conditioner end equipment |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105020850A (en) * | 2015-07-03 | 2015-11-04 | 深圳市海亿达能源科技股份有限公司 | Intelligent driving device for central air conditioner air-cooling cabinet based on embedded technology and air conditioner |
| CN105157185A (en) * | 2015-10-23 | 2015-12-16 | 珠海格力电器股份有限公司 | Automatic energy saving system and method for air conditioner and multi-connected air conditioner |
| CN105805867A (en) * | 2016-03-11 | 2016-07-27 | 苏州明威医疗科技有限公司 | Energy-saving type fresh air double-cooling air conditioning system for X-ray machine |
| CN106765610A (en) * | 2017-02-14 | 2017-05-31 | 英得艾斯（上海）冷冻空调有限公司 | A kind of variable water flow system air conditioning terminal and its method of work |
| CN106979580A (en) * | 2016-01-19 | 2017-07-25 | 台达电子工业股份有限公司 | The energy source optimization system and energy source optimization method of the air side apparatus of air-conditioning |
| CN107940648A (en) * | 2017-12-26 | 2018-04-20 | 江苏定能电子技术有限公司 | Wind power ganged control device and control method applied to subway ventilation air-conditioning system |
| CN109099552A (en) * | 2018-08-13 | 2018-12-28 | 南京优助智能科技有限公司 | Merge the central air conditioner end equipment control system and working method of spatial information |
| CN110192542A (en) * | 2019-04-22 | 2019-09-03 | 嵊州陌桑高科股份有限公司 | A kind of self-circulation type side feeding system based on industrial aquaculture room |
| CN112484254A (en) * | 2020-11-24 | 2021-03-12 | 珠海格力电器股份有限公司 | Control method, device, controller and system of combined air conditioning unit |
| CN113531835A (en) * | 2021-07-27 | 2021-10-22 | 贵州电网有限责任公司 | Electric power system machine room temperature control coordination control method based on optimal working point |
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Cited By (16)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105020850B (en) * | 2015-07-03 | 2018-02-06 | 深圳市海亿达能源科技股份有限公司 | A kind of central air-conditioning wind cabinet intelligent drive device based on embedded technology |
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| CN105805867A (en) * | 2016-03-11 | 2016-07-27 | 苏州明威医疗科技有限公司 | Energy-saving type fresh air double-cooling air conditioning system for X-ray machine |
| CN105805867B (en) * | 2016-03-11 | 2019-04-09 | 苏州明威医疗科技有限公司 | The double cold air conditioning systems of X-ray machine energy-saving fresh |
| CN106765610B (en) * | 2017-02-14 | 2022-11-18 | 英得艾斯（上海）冷冻空调有限公司 | Variable water flow air conditioner terminal and working method thereof |
| CN106765610A (en) * | 2017-02-14 | 2017-05-31 | 英得艾斯（上海）冷冻空调有限公司 | A kind of variable water flow system air conditioning terminal and its method of work |
| CN107940648A (en) * | 2017-12-26 | 2018-04-20 | 江苏定能电子技术有限公司 | Wind power ganged control device and control method applied to subway ventilation air-conditioning system |
| CN109099552A (en) * | 2018-08-13 | 2018-12-28 | 南京优助智能科技有限公司 | Merge the central air conditioner end equipment control system and working method of spatial information |
| CN110192542B (en) * | 2019-04-22 | 2021-07-13 | 嵊州陌桑高科股份有限公司 | Self-circulation type lateral air supply system based on industrial culture room |
| CN110192542A (en) * | 2019-04-22 | 2019-09-03 | 嵊州陌桑高科股份有限公司 | A kind of self-circulation type side feeding system based on industrial aquaculture room |
| CN112484254A (en) * | 2020-11-24 | 2021-03-12 | 珠海格力电器股份有限公司 | Control method, device, controller and system of combined air conditioning unit |
| CN113531835A (en) * | 2021-07-27 | 2021-10-22 | 贵州电网有限责任公司 | Electric power system machine room temperature control coordination control method based on optimal working point |
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Application publication date: 20140528 |