CN101270906A - Reheating capacity-variable air conditioner control system - Google Patents
Reheating capacity-variable air conditioner control system Download PDFInfo
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- CN101270906A CN101270906A CNA2008100239784A CN200810023978A CN101270906A CN 101270906 A CN101270906 A CN 101270906A CN A2008100239784 A CNA2008100239784 A CN A2008100239784A CN 200810023978 A CN200810023978 A CN 200810023978A CN 101270906 A CN101270906 A CN 101270906A
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Abstract
The invention discloses a reheat variable-capacity air-conditioning control system, the supplementary air valve of which is connected with an evaporator; the evaporator is connected with a reheater; the reheater is connected with a blower supplying air to rooms; a return air pipe outputted form the inside of the room connected between the supplementary air valve and the evaporator through a return air valve; a return bypass pipe is arranged between the return air valve and the blower; the return bypass pipe is provided with a return bypass valve; the evaporator is connected with the compressor; the compressor is connected with the reheater; the evaporator is also connected with the condenser, which is connected with the compressor; the reheater is also connected with the condenser; the front part and the back part of the supplementary air valve are both provided with a differential pressure transducer; low pressure sensor is arranged between the evaporator and the compressor; an air temperature sensor is arranged at the front part of the blower; a mixed air temperature sensor, an indoor air temperature sensor, an indoor humidity sensor are arranged indoors, and a controller which is used to control the operation and receive the information of the sensors. The invention is characterized by reasonable structure and the operation of the system is efficient and energy saving.
Description
Technical field:
The present invention relates to a kind of air conditioning control device.
Background technology:
At present except adopting large-scale and expensive cold and hot water supply system can satisfy simultaneously indoor temperature and humidity requires, also the neither one air-conditioning system can be accomplished above requirement (and reaching energy-saving effect), existing these expensive systems only are used for some special application scenarios, mainly are because system complex and involving great expense.
Along with the concern of people to health, prevent the formation of indoor Legionella, it is very necessary that the control indoor humidity becomes.Particularly in place such as public buildings such as schools.When air humidity is easy to breeding on 50% bacterium when above, prevent that vegetative ideal situation from being that air humidity is greatly about 45%.Existing air-conditioning system can not keep indoor relative humidity to be lower than 50% under all outdoor temperature wet environments, then adopts reheat system as need control indoor relative humidity, and then efficiency reduces greatly when reheat system is moved.
Summary of the invention:
The object of the present invention is to provide a kind of rational in infrastructure, the reheating capacity-variable air conditioner control system that system operation is efficient, energy-conservation.
Technical solution of the present invention is:
A kind of reheating capacity-variable air conditioner control system, it is characterized in that: comprise new air-valve, new air-valve is connected with evaporimeter, evaporimeter is connected with reheater, reheater is connected with pressure fan to indoor air-supply, be connected between new air-valve and the evaporimeter by air returning valve from the return air duct of indoor output, the return air bypass line is set between air returning valve and pressure fan, the return air by-passing valve is set on the return air bypass line, evaporimeter is connected with compressor, compressor is connected with reheater, evaporimeter also connects with the condenser that is connected with compressor, reheater also is connected with condenser, is provided with differential pressure pickup before and after new air-valve, between evaporimeter and compressor low-pressure sensor is set, be provided with wind pushing temperature sensor in pressure fan air-supply side, mix wind-warm syndrome degree sensor indoor being provided with, the indoor humidity sensor, indoor temperature transmitter, a controller is accepted the information of above-mentioned each sensor, and to new air-valve, air returning valve, the return air by-passing valve, compressor is controlled.
The present invention is rational in infrastructure, favorable working performance, and system's operation is efficient, energy-conservation.The present invention is temperature, humidity stable in the control room dynamically, reaches more efficient, more energy-conservation simultaneously, keeps minimum heat again.Its existing air-conditioning system more energy-conservation, more efficient while of operation can be accomplished the control accuracy of the existing inaccessiable high-temperature humidity of air-conditioning system, and the stable control of resh air requirement in can holding chamber, and its operating cost is lower.
Description of drawings:
The invention will be further described below in conjunction with drawings and Examples.
Fig. 1 is the configuration diagram of one embodiment of the invention.
The specific embodiment:
A kind of reheating capacity-variable air conditioner control system, comprise new air-valve 4, new air-valve is connected with evaporimeter 7, evaporimeter 7 is connected with reheater 8, reheater 8 is connected with pressure fan 13 to indoor air-supply, be connected between new air-valve and the evaporimeter by air returning valve 5 from the return air duct of indoor output, the return air bypass line is set between air returning valve and pressure fan, return air by-passing valve 6 is set on the return air bypass line, evaporimeter 7 is connected with compressor 3, compressor is connected with reheater 8, evaporimeter also connects with the condenser 2 that is connected with compressor, reheater 8 also is connected with condenser 2, is provided with differential pressure pickup 17 before and after new air-valve, and low-pressure sensor 15 is set between evaporimeter and compressor, be provided with wind pushing temperature sensor 12 in pressure fan air-supply side, mix wind-warm syndrome degree sensor 9 indoor being provided with, indoor humidity sensor 10,11, one controllers of indoor temperature transmitter 14 are accepted the information of above-mentioned each sensor, and to new air-valve, air returning valve, the return air by-passing valve, compressor is controlled.Also have hot gas control valve 1, expansion valve 16 among the figure.
The numerical value that native system can set by temperature and humidity probe Sustainable Control indoor temperature, humidity under any outdoor environment.This by realizing the control function with the lower part co-operating: the ratio that is arranged on the return air bypass is regulated air-valve, the compressor that Continuous Energy is regulated, but ratio is regulated the reheater of heat again.With the control of three major control element co-operatings realizations to indoor temperature and humidity.The management of above-mentioned three control elements and operation realize that by a controller this controller is controlled the operation of whole air-conditioning system simultaneously.
Controller is by the temperature and humidity in indoor temperature probe, the moisture probe Control Room, and controller receives the signal of temperature and the compressor action that output signal control is attached thereto, and keeps the scope that indoor temperature is being set.Compressor adopts the pattern of proportion expression energy adjustment, and for example paddy wheel digital scroll compressor promptly is the type type.
For the control indoor humidity in setting value (usually 45%), controller is at first regulated the aperture of return air by-passing valve, makes more return cross bypass circulation and reduces when flowing through the air of evaporimeter and reheater.As shown in the figure, indoor return air is through backwind tube flow through air returning valve and return air by-passing valve, and unnecessary air is discharged through exhaust duct.
Controller is regulated the return air by-passing valve continuously, and return air by-passing valve aperture is unlikely too low to the evaporation coil temperature as far as possible greatly, and the monitoring by suction side low pressure numerical value realizes this function.As shown, refrigerant flows into compressor by evaporator outlet.When the mixing air flow of the evaporation coil of flowing through reduces, low pressure will drop to certain limit value.The signal of controller reception low pressure and output signal make return air bypass air-valve open or close and keep low pressure at limit value.
The return air by-passing valve is opened the requirement that to the maximum indoor relative humidity can't satisfy setting value, thereby controller will be regulated the hot gas flow that the reheat control valve aperture is transferred reheater, reach the requirement of setting value until humidity.The low humidity Cryogenic air of evaporation coil of flowing through is mixed into pressure fan through the air of reheater heating back and return air bypass circulation.
When heat brought into operation again, system utilized one to be arranged at the temperature sensor that send on the pipeline.This temperature sensor links to each other with controller, and when interior sensor was experienced temperature deviation, the temperature sensor of air-supply pipeline provided the feed forward type control signal with the control compressor to wind pushing temperature.Controller control compressor increases capacity when wind pushing temperature sensor is experienced the wind pushing temperature rising, thereby increases the indoor temperature of cold medium flux quick adjustment.So finish control by compressor jointly to indoor temperature by indoor temperature transmitter, wind pushing temperature sensor and feed forward type control.
For reaching energy-conservation purpose, when indoor humidity reaches requiring of setting value, reset the low pressure numerical value of low-pressure side, make unit again heat reduce, air themperature improves after making evaporimeter when keeping suitable moisture removal, makes unit operation more energy-conservation, efficient.
Be provided with differential pressure pickup before and after the outdoor new air-valve, controller receives the signal of differential pressure pickup, and the flow of control room outer air.Air through new air-valve mixes with the air of process air returning valve.Mixing air enters evaporimeter.
When pressure reduction reduces before and after detecting outdoor new air-valve, illustrate that the amount of oxygen in the inlet chamber reduces.For keeping suitable ventilation and stable amount of oxygen, need the outdoor resh air requirement flow that keeps stable, therefore big and turn down by opening of the new air-valve controller control room outside, can control the resh air requirement that enters unit and remain on a stationary value.
Another possibility of suitable amount of oxygen in the holding chamber, be a carbon dioxide sensor to be installed in indoor controlled zone, this sensor links to each other with controller, thereby supplies with by the oxygen that the new valve area size of the control of indoor carbon dioxide content is kept indoor abundance.
Claims (1)
1, a kind of reheating capacity-variable air conditioner control system, it is characterized in that: comprise new air-valve, new air-valve is connected with evaporimeter, evaporimeter is connected with reheater, reheater is connected with pressure fan to indoor air-supply, be connected between new air-valve and the evaporimeter by air returning valve from the return air duct of indoor output, the return air bypass line is set between air returning valve and pressure fan, the return air by-passing valve is set on the return air bypass line, evaporimeter is connected with compressor, compressor is connected with reheater, evaporimeter also connects with the condenser that is connected with compressor, reheater also is connected with condenser, is provided with differential pressure pickup before and after new air-valve, between evaporimeter and compressor low-pressure sensor is set, be provided with wind pushing temperature sensor in pressure fan air-supply side, mix wind-warm syndrome degree sensor indoor being provided with, the indoor humidity sensor, indoor temperature transmitter, a controller is accepted the information of above-mentioned each sensor, and to new air-valve, air returning valve, the return air by-passing valve, compressor is controlled.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008100239784A CN101270906A (en) | 2008-04-17 | 2008-04-17 | Reheating capacity-variable air conditioner control system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008100239784A CN101270906A (en) | 2008-04-17 | 2008-04-17 | Reheating capacity-variable air conditioner control system |
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| Publication Number | Publication Date |
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| CN101270906A true CN101270906A (en) | 2008-09-24 |
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| Application Number | Title | Priority Date | Filing Date |
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| CNA2008100239784A Pending CN101270906A (en) | 2008-04-17 | 2008-04-17 | Reheating capacity-variable air conditioner control system |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101995062A (en) * | 2010-11-09 | 2011-03-30 | 帝思迈环境设备（上海）有限公司 | Total heat recovery humidifying fresh-air heat pump |
| CN103109139A (en) * | 2011-03-15 | 2013-05-15 | 株式会社东芝 | Air conditioning system for server room management |
| CN104949277A (en) * | 2015-06-24 | 2015-09-30 | 武汉理工大学 | Novel air-conditioner air supply system |
| CN105202630A (en) * | 2015-08-28 | 2015-12-30 | 中山市绿涛电子科技有限公司 | Energy-saving air conditioner cooling system |
| US9307679B2 (en) | 2011-03-15 | 2016-04-05 | Kabushiki Kaisha Toshiba | Server room managing air conditioning system |
| CN106500212A (en) * | 2016-10-31 | 2017-03-15 | 珠海格力电器股份有限公司 | A kind of air cooler and its air-out control method |
| CN112378058A (en) * | 2020-11-17 | 2021-02-19 | 雷内里·弗朗切斯科 | Control method of fresh air machine |
| CN113357747A (en) * | 2021-08-11 | 2021-09-07 | 浙江德塔森特数据技术有限公司 | Autonomous diagnosis control method for air conditioner in data machine room |
| CN114008389A (en) * | 2019-02-05 | 2022-02-01 | 奥艾罗联盟有限公司 | Air conditioning apparatus |
-
2008
- 2008-04-17 CN CNA2008100239784A patent/CN101270906A/en active Pending
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101995062A (en) * | 2010-11-09 | 2011-03-30 | 帝思迈环境设备（上海）有限公司 | Total heat recovery humidifying fresh-air heat pump |
| US9648788B2 (en) | 2011-03-15 | 2017-05-09 | Kabushiki Kaisha Toshiba | Server room managing air conditioning system |
| CN103109139A (en) * | 2011-03-15 | 2013-05-15 | 株式会社东芝 | Air conditioning system for server room management |
| CN103109139B (en) * | 2011-03-15 | 2015-11-25 | 株式会社东芝 | Room server management air handling system |
| US9307679B2 (en) | 2011-03-15 | 2016-04-05 | Kabushiki Kaisha Toshiba | Server room managing air conditioning system |
| CN104949277A (en) * | 2015-06-24 | 2015-09-30 | 武汉理工大学 | Novel air-conditioner air supply system |
| CN105202630A (en) * | 2015-08-28 | 2015-12-30 | 中山市绿涛电子科技有限公司 | Energy-saving air conditioner cooling system |
| CN106500212A (en) * | 2016-10-31 | 2017-03-15 | 珠海格力电器股份有限公司 | A kind of air cooler and its air-out control method |
| CN114008389A (en) * | 2019-02-05 | 2022-02-01 | 奥艾罗联盟有限公司 | Air conditioning apparatus |
| CN112378058A (en) * | 2020-11-17 | 2021-02-19 | 雷内里·弗朗切斯科 | Control method of fresh air machine |
| CN112378058B (en) * | 2020-11-17 | 2022-03-22 | 雷内里·弗朗切斯科 | Control method of fresh air machine |
| CN113357747A (en) * | 2021-08-11 | 2021-09-07 | 浙江德塔森特数据技术有限公司 | Autonomous diagnosis control method for air conditioner in data machine room |
| CN113357747B (en) * | 2021-08-11 | 2021-10-15 | 浙江德塔森特数据技术有限公司 | Autonomous diagnosis control method for air conditioner in data machine room |
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Open date: 20080924 |