CN203642425U - Variable air volume end control system of air conditioner - Google Patents
Variable air volume end control system of air conditioner Download PDFInfo
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- CN203642425U CN203642425U CN201320812467.7U CN201320812467U CN203642425U CN 203642425 U CN203642425 U CN 203642425U CN 201320812467 U CN201320812467 U CN 201320812467U CN 203642425 U CN203642425 U CN 203642425U
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- air
- variable
- sensor
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- control system
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
- Y02B30/70—Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating
Abstract
The utility model relates to a variable air volume end control system of an air conditioner. The variable air volume end control system comprises an air conditioner unit with a draught fan frequency converter, one air hose of the air conditioner unit is connected with a plurality of variable air volume end devices in parallel, and the end devices are respectively connected with the air hose through an air inlet pipeline and an air returning pipeline. Each air inlet pipeline is internally provided with a temperature sensor and a first CO2 sensor, wherein the temperature sensor and the first CO2 sensor are installed at the joints of the air inlet pipeline and the end devices, and the temperature sensor and the first CO2 sensor are connected with a controller of the air conditioner unit. Each variable air volume end device comprises a box body, a draught fan installing box, a draught fan, a return air mixing machine, a return air still pressure box, an air supplying pipe and a distribution box, wherein the top in the air supplying pipe is provided with a differential pressure sensor, and the box body is internally provided with a PLC connected with the draught fan and the differential pressure sensor. The variable air volume end control system of the air conditioner is simple in structure, reasonable in design, stable and capable of saving energy.
Description
Technical field
The utility model relates to a kind of variable-air-volume air conditioner end control system.
Background technology
Along with scientific and technical development, improving constantly of living standards of the people, people are also more and more higher to the comfortableness of air-conditioned room, variable air quantity (Variable Air Volume, being called for short VAV) air-conditioning system is to regulate by variable air quantity end equipment the air quantity of sending into room, and the air quantity of corresponding adjusting air conditioning adapts to the air quantity demand of this system.It can, according to variation and the indoor change that requires parameter of controlled regional air conditioner load, regulate the air output of air-conditioning system, thereby ensure that room parameter reaches requirement automatically.The rotating speed that simultaneously automatically regulates pressure fan according to actual air output, reduces blower fan power to greatest extent, saves energy.Variable-air-volume air conditioner system have control flexibly, health, the feature such as energy-conservation, not only can be according to conditioned area load variations, automatically change air output, and along with the minimizing of air output, blower fan conveying energy consumption is corresponding minimizing also, can save blower fan power consumption approximately over half, be equivalent to save 10% air-conditioning system total power consumption, therefore there is dual energy-conserving action.
Energy-conservation has now been the problem that the global people pay close attention to; in the report of party in this year; environmental protection has been thus lifted to unprecedented height, discusses conservation culture for single section first, and has discharged the signal of the association areas such as strong concern for the environment protection, resource circulation utilization, energy-saving and emission-reduction.In the air-conditioning system power consumption pointer (Performance of Air-Conditioning System, PACS) of discussing and formulating at Ministry of Internal Affairs's Building Research Establishment, especially VAV system is classified as to the conservation measures that suggestion adopts.In today, people pursue a home from home simultaneously in energy-intensive situation, and that research has is digital, the VAV air cleaning and conditioning system of high-performance, low cost, highly versatile form bulk article, has very important technology and economic implications.
In traditional variable air quantity end system, when traditional high-head blower fan exists operation, power is large, the problem that energy consumption is large.
Utility model content
The purpose of this utility model is to overcome above shortcomings in prior art, and a kind of variable-air-volume air conditioner end control system of simple in structure, reasonable in design, stabilizing energy-saving is provided.
The technical scheme in the invention for solving the above technical problem is: this variable-air-volume air conditioner end control system, comprise the end-equipment with multiple variable air quantities in parallel on the air-conditioning unit of fan frequency converter, wind conveying pipe of described air-conditioning unit, it is characterized in that being connected by air inlet pipeline and air return pipeline respectively between described end-equipment and wind conveying pipe, temperature sensor and a CO are installed in described air inlet pipeline
2sensor, described temperature sensor and a CO
2installation of sensors is in the junction of air inlet pipeline and end-equipment, described temperature sensor and a CO
2sensor is connected with the controller of air-conditioning unit, the end-equipment of described variable air quantity comprises casing, assembling case, blower fan, return air mixer, return air plenum chamber, ajutage and power distribution cabinet, described power distribution cabinet is fixed on casing top, assembling is in assembling case, described assembling case is bolted on casing, described return air mixer is riveted on casing, between described assembling case and return air mixer, be provided with separation stiffener, on described return air mixer, return air plenum chamber is installed, described ajutage is arranged on casing, top in described ajutage is provided with differential pressure pickup, PLC controller is also installed in casing, described PLC controller and blower fan, differential pressure pickup connects.By temperature sensor and a CO
2sensor feedback information is to the controller of air-conditioning unit, the new wind of controller control is to the input quantity of each end-equipment, measure wind speed by differential pressure pickup, and information is sent to PLC controller, PLC controller is by the power of the VFC blower fan of frequency converter.
The 2nd CO is installed on air return pipeline described in the utility model
2sensor, described the 2nd CO
2sensor is connected with the controller of air-conditioning unit.
Assembling described in the utility model, in assembling case, is provided with frequency converter on described blower fan.
Sound-absorbing damping material is posted in return air plenum chamber described in the utility model inside.
The utility model compared with prior art, has the following advantages and effect: simple in structure, reasonable in design, and by temperature sensor and a CO
2sensor, the 2nd CO
2the feedback information of sensor is to the controller of air-conditioning unit, the new wind of controller control is to the input quantity of each end-equipment, measure wind speed by differential pressure pickup, and information is sent to PLC controller, PLC controller is by the power of the VFC blower fan of frequency converter, reduce fan energy consumption, energy-conservation stable.
Brief description of the drawings
Fig. 1 is the structural representation of variable-air-volume air conditioner end control system in the utility model embodiment.
Fig. 2 is the structural representation of the utility model embodiment end-equipment.
In figure: air-conditioning unit 1, wind conveying pipe 2, air inlet pipeline 3, air return pipeline 4, casing 5, ajutage 6, power distribution cabinet 7, assembling case 8, separation stiffener 9, return air mixer 10, return air plenum chamber 11, air outlet 13, differential pressure pickup 14, a CO
2sensor 15, temperature sensor 16, end-equipment 17, the 2nd CO
2sensor 18.
Detailed description of the invention
Below in conjunction with accompanying drawing and by embodiment, the utility model is described in further detail, and following examples are to explanation of the present utility model and the utility model is not limited to following examples.
Referring to Fig. 1-2, in the present embodiment, variable-air-volume air conditioner end control system comprises the end-equipment 17 with multiple variable air quantities in parallel on the air-conditioning unit 1 of fan frequency converter and air-conditioning unit 1 wind conveying pipe 2, described end-equipment 17 by and wind conveying pipe 2 between be connected by air inlet pipeline 3 and air return pipeline 4 respectively, temperature sensor 16 and a CO are installed in described air inlet pipeline 3
2 sensor 15, described temperature sensor 16 and a CO
2sensor 15 is installed in the junction of air inlet pipeline 3 and end-equipment 17, temperature sensor 16 and a CO
2sensor 15 is connected with the controller of air-conditioning unit 1, and the 2nd CO is installed on air return pipeline 4
2 sensor 18, described the 2nd CO
2sensor 18 is connected with the controller of air-conditioning unit 1, end-equipment 17 comprises casing 5, assembling case 8, blower fan, return air mixer 10, return air plenum chamber 11, ajutage 6 and power distribution cabinet 7, power distribution cabinet 7 is fixed on casing 5 tops, power distribution cabinet 7 provides electric power, assembling case 8 is bolted on casing 5, return air mixer 10 is riveted on casing 5, assembling is in assembling case 8, frequency converter is installed on blower fan, blower fan provides power, form blast and flow, between described assembling case 8 and return air mixer 10, be provided with and separate stiffener 9, separate stiffener 9 for separating return air mixer 10 and assembling case 8, increase the intensity of casing 5 simultaneously, return air mixer 10 mixes wind and return air fully, return air plenum chamber 11 is installed on return air mixer 10, sound-absorbing damping material is posted in return air plenum chamber 11 inside, further reduce noise, ajutage 6 is arranged on casing 5, ajutage 6 is positioned at the top of return air plenum chamber 11, top in ajutage 6 is provided with differential pressure pickup 14, differential pressure pickup 14 is positioned at air outlet 13 places of ajutage 6, PLC controller is also installed in casing 5, described PLC controller and blower fan, differential pressure pickup 14 connects.
The present embodiment is by temperature sensor 16 and a CO
2sensor 15, the 2nd CO
2sensor 18 feedback informations are to the controller of air-conditioning unit 1, the new wind of controller control is to the new wind input quantity of each end-equipment 17, by differential pressure pickup 14 measuring wind, and information is sent to PLC controller, calculate flowing resistance by airspeedometer, in the time that flowing resistance is larger, PLC controls by the increasing power stage of the VFC blower fan of frequency converter, when the resistance hour of ventilating, the VFC blower fan of PLC controller by frequency converter reduce power, reduce energy consumption.Owing to PLC controller being installed on each end-equipment 17, in use can open or shut down according to the requirement in each room, avoid traditional air cleaning and conditioning system one to open standard-sized sheet, one closes the feature of complete shut-down, has avoided causing unnecessary waste.Indivedual units break down, and the unit in other rooms still can normally be opened, and has the features such as practicality, energy saving, stability and validity.
After the present embodiment central fresh air handling, directly deliver in plenum chamber in end-equipment 17 and circulated air mixes, recently reach setting value by the mixing of new wind and return air, make indoorly comparatively fast to reach the effect that heats or freeze, and reduced energy consumption.
In addition, it should be noted that, the specific embodiment described in this description, shape, institute's title of being named etc. of its parts and components can be different, and the above content described in this description is only to the explanation of the utility model structure example.All equivalence variation or simple change of doing according to described structure, feature and the principle of the utility model patent design, are included in the protection domain of the utility model patent.
Claims (4)
1. a variable-air-volume air conditioner end control system, comprise the end-equipment with multiple variable air quantities in parallel on the air-conditioning unit of fan frequency converter, wind conveying pipe of described air-conditioning unit, it is characterized in that: between described end-equipment and wind conveying pipe, be connected by air inlet pipeline and air return pipeline respectively, temperature sensor and a CO are installed in described air inlet pipeline
2sensor, described temperature sensor and a CO
2installation of sensors is in the junction of air inlet pipeline and end-equipment, described temperature sensor and a CO
2sensor is connected with the controller of air-conditioning unit, the end-equipment of described variable air quantity comprises casing, assembling case, blower fan, return air mixer, return air plenum chamber, ajutage and power distribution cabinet, described power distribution cabinet is fixed on casing top, assembling is in assembling case, described assembling case is bolted on casing, described return air mixer is riveted on casing, between described assembling case and return air mixer, be provided with separation stiffener, on described return air mixer, return air plenum chamber is installed, described ajutage is arranged on casing, top in described ajutage is provided with differential pressure pickup, PLC controller is also installed in casing, described PLC controller and blower fan, differential pressure pickup connects.
2. variable-air-volume air conditioner end control system according to claim 1, is characterized in that: the 2nd CO is installed on described air return pipeline
2sensor, described the 2nd CO
2sensor is connected with the controller of air-conditioning unit.
3. variable-air-volume air conditioner end control system according to claim 1, is characterized in that: on described blower fan, frequency converter is installed.
4. variable-air-volume air conditioner end control system according to claim 1, is characterized in that: sound-absorbing damping material is posted in described return air plenum chamber inside.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320812467.7U CN203642425U (en) | 2013-12-12 | 2013-12-12 | Variable air volume end control system of air conditioner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320812467.7U CN203642425U (en) | 2013-12-12 | 2013-12-12 | Variable air volume end control system of air conditioner |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203642425U true CN203642425U (en) | 2014-06-11 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320812467.7U Expired - Fee Related CN203642425U (en) | 2013-12-12 | 2013-12-12 | Variable air volume end control system of air conditioner |
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| CN (1) | CN203642425U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104121666A (en) * | 2014-07-07 | 2014-10-29 | 湖南科技大学 | Hourly frequency conversion air supplying system and control method for central air conditioning ventilation system |
| CN108253594A (en) * | 2018-01-10 | 2018-07-06 | 大连理工大学 | A kind of air-conditioning system variable air rate end control system and its control method based on intelligent wearable device |
-
2013
- 2013-12-12 CN CN201320812467.7U patent/CN203642425U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104121666A (en) * | 2014-07-07 | 2014-10-29 | 湖南科技大学 | Hourly frequency conversion air supplying system and control method for central air conditioning ventilation system |
| CN104121666B (en) * | 2014-07-07 | 2016-08-31 | 湖南科技大学 | For central air-conditioning wind system by time frequency conversion air feed system and control method |
| CN108253594A (en) * | 2018-01-10 | 2018-07-06 | 大连理工大学 | A kind of air-conditioning system variable air rate end control system and its control method based on intelligent wearable device |
| CN108253594B (en) * | 2018-01-10 | 2020-06-16 | 大连理工大学 | Air conditioning system variable air volume terminal control system based on intelligent wearable equipment and control method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140611 Termination date: 20171212 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |