CN104279728A - Direct contact type hygrostat based on compressor frequency control and method thereof - Google Patents
Direct contact type hygrostat based on compressor frequency control and method thereof Download PDFInfo
- Publication number
- CN104279728A CN104279728A CN201410533073.7A CN201410533073A CN104279728A CN 104279728 A CN104279728 A CN 104279728A CN 201410533073 A CN201410533073 A CN 201410533073A CN 104279728 A CN104279728 A CN 104279728A
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- China
- Prior art keywords
- compressor
- water tank
- air
- humidity
- hygrostat
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F1/00—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
- F24F1/02—Self-contained room units for air-conditioning, i.e. with all apparatus for treatment installed in a common casing
- F24F1/022—Self-contained room units for air-conditioning, i.e. with all apparatus for treatment installed in a common casing comprising a compressor cycle
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/89—Arrangement or mounting of control or safety devices
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F3/00—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems
- F24F3/12—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling
- F24F3/14—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling by humidification; by dehumidification
- F24F3/1405—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling by humidification; by dehumidification in which the humidity of the air is exclusively affected by contact with the evaporator of a closed-circuit cooling system or heat pump circuit
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B49/00—Arrangement or mounting of control or safety devices
- F25B49/02—Arrangement or mounting of control or safety devices for compression type machines, plants or systems
- F25B49/022—Compressor control arrangements
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F2203/00—Devices or apparatus used for air treatment
- F24F2203/02—System or Device comprising a heat pump as a subsystem, e.g. combined with humidification/dehumidification, heating, natural energy or with hybrid system
- F24F2203/021—Compression cycle
Abstract
The invention discloses a direct contact type hygrostat based on compressor frequency control and a method thereof. The hygrostat comprises a cabinet, a fan, a compressor, a condenser, a water tank, a throttle valve, an electromagnetic reversing valve, a frequency converter and an evaporator. The compressor, the condenser, the electromagnetic reversing valve, the throttle valve and the evaporator are connected sequentially; the evaporator is arranged in the water tank, the air inlet of the fan is communicated with outside through a fresh air pipe, the air outlet of the fan is connected to a spraying pipe, and the spraying pipe is inserted into the bottom of the water tank from the right of the water tank; the top of the water tank is provided with a guide plate, and the air outlet of the top is provided with an air blowing pipe. According to the hygrostat, the water temperature is adjusted through the refrigerating capacity of the compressor, and the air dehumidification is changed by controlling the water temperature; the system further adopts the electromagnetic reversing valve, when air humidification is required, the system operates in a manner of a heat pump, the water temperature rises, and humidification is performed conveniently; the hygrostat is compact in structure and is specially adaptive to constant humid environment of a large showcase or antique storeroom.
Description
Technical field
The present invention relates to energy field of air conditioning, particularly relate to a kind of adopt compressor variable frequency to control direct contact type constant-moisture device and method.
Background technology
Exhibition of cultural relics needs specific humiture environment, is generally to be obtained by constant temperature and humidity air-conditioning system.In most cases, compared to temperature, the humidity that controls environment is even more important to historical relic's protection, controls according to constant-temperature constant-humidity air-conditioner, high cost, consumes energy very large.For realizing dehumidifying and humidification function, constant-moisture device is many is equipped with dehumidifying and damping device simultaneously: dehumidifying generally adopts cooling and dehumidifying, namely air with lower than the cold-producing medium of air dew point temperature or refrigerating medium heat exchange, separate out after the steam in air reaches capacity, the humidity of air declines; Damping device adopts the mode such as electric heating or ultrasonic wave to evaporate the water increase air humidity.Thus system is comparatively complicated, controls difficulty higher simultaneously.In control, the constant-moisture device on market adopts compressor and blower fan start-stop to control, and system can not be run continuously, also makes the accurate control of humidity be difficult to realize, and the frequent start-stop of system also easy initiating failure.The present invention adopts compressor variable frequency to control, and electromagnetic switch Vavle switching kind of refrigeration cycle flows to, and system is run continuously, and has certain energy-saving effect.
Summary of the invention
The object of the invention is to overcome the deficiencies in the prior art, the direct contact type constant-moisture device providing the employing compressor variable frequency that a kind of structure is simple, easy to use, precision is high to control and method thereof.
The present invention intends adopting following technical scheme to realize object of the present invention:
The direct contact type constant-moisture device adopting compressor variable frequency to control comprises cabinet, blower fan, compressor, condenser, water tank, choke valve, solenoid directional control valve, frequency converter, evaporimeter; Described compressor, condenser, solenoid directional control valve, choke valve, evaporimeter are connected in turn, evaporimeter is placed in water tank, air inlet is in communication with the outside by fresh wind tube, fan outlet is connected with jet pipe, jet pipe inserts water tank bottom by the right side of water tank, tank top is provided with deflector, and top outlet inlet is provided with ajutage.
Described nozzle surface has aperture.The rotating speed of described compressor is by Frequency Converter Control, and the input of frequency converter is connected on the output module of Programmable Logic Controller.
The direct contact type constant humidity method adopting compressor variable frequency to control is: in running, sensor gathers the relative humidity of environment residing for historical relic, Programmable Logic Controller produces according to the deviation between actual humidity and setting humidity and outputs signal, control frequency converter, thus change the running frequency of compressor, to regulate refrigerating capacity or the heating capacity of refrigeration unit, and then control the temperature of Water in Water Tanks, change is to the moisture removal of air or add moisture, final realization is to the accurate of historical relic envionmental humidity and stability contorting, refrigerant flow direction is controlled by solenoid directional control valve, system switches dehumidifying and humidifying mode by changing refrigerant flow direction.
The present invention adopts the humidity sensor be arranged in showcase or storehouse gather the actual humidity residing for historical relic and be transferred to Programmable Logic Controller, controller is by comparing the deviation between actual humidity and target humidity, to frequency converter sending controling instruction, frequency converter changes the operating frequency of compressor after obtaining instruction, change the refrigerating capacity/heating capacity of compressor bank, thus the temperature of water in regulating tank is to control moisture removal/add moisture.This constant-moisture device adopts solenoid directional control valve to control refrigeration unit pattern, and during dehumidifying, unit is refrigeration mode, and during humidification, unit inverted running becomes heating mode.Evaporimeter is placed in water by the present invention, utilizes blower fan and jet pipe to blast in water by air, air and water direct contact heat-exchanging dehumidifying/humidifying, improves the dehumidifying/humidifying efficiency of system.Compact conformation of the present invention, adopts the power-saving technology such as VFC and direct contact heat transfer, in the control of historical relic's protection ambient humidity, will play very important positive role.
Accompanying drawing explanation
Fig. 1 is the front view of the direct contact type constant-moisture device adopting compressor variable frequency to control;
Fig. 2 is the right view of the direct contact type constant-moisture device adopting compressor variable frequency to control;
Fig. 3 is the left view of the direct contact type constant-moisture device adopting compressor variable frequency to control;
In figure: cabinet 1, blower fan 2, compressor 3, condenser 4, water tank 5, choke valve 6, solenoid directional control valve 7, frequency converter 8, evaporimeter 9, fresh wind tube 10, jet pipe 11, ajutage 12, deflector 13, Programmable Logic Controller 14, radiator fan 15.
Detailed description of the invention
As shown in Figure 1, the direct contact type constant-moisture device adopting compressor variable frequency to control comprises cabinet 1, blower fan 2, compressor 3, condenser 4, water tank 5, choke valve 6, solenoid directional control valve 7, frequency converter 8, evaporimeter 9; Described compressor 3, condenser 4, solenoid directional control valve 7, choke valve 6, evaporimeter 9 are connected in turn, evaporimeter 9 is placed in water tank 5, blower fan 2 air inlet is in communication with the outside by fresh wind tube 10, blower fan 2 air outlet is connected with jet pipe 11, jet pipe 11 is by inserting bottom water tank 5 on the right side of water tank 5, water tank 5 top is provided with deflector 13, and top outlet inlet is provided with ajutage 12.
Described jet pipe 11 surface has aperture.The rotating speed of described compressor 3 is controlled by frequency converter 8, and the input of frequency converter 8 is connected on the output module of Programmable Logic Controller 14.
The direct contact type constant humidity method adopting compressor variable frequency to control is: in running, sensor gathers the relative humidity of environment residing for historical relic, Programmable Logic Controller 14 produces according to the deviation between actual humidity and setting humidity and outputs signal, control frequency converter 8, thus change the running frequency of compressor 3, to regulate refrigerating capacity or the heating capacity of refrigeration unit, and then control the temperature of Water in Water Tanks, change is to the moisture removal of air or add moisture, final realization is to the accurate of historical relic envionmental humidity and stability contorting, refrigerant flow direction is controlled by solenoid directional control valve 7, system switches dehumidifying and humidifying mode by changing refrigerant flow direction.
Operation principle of the present invention is: cold-producing medium is compressed into HCS within the compressor, is condensed back liquid within the condenser again through choke valve throttling cooling, evaporates in evaporimeter, absorbs heat and becomes gas and enter compressor and complete kind of refrigeration cycle.In the present invention, when air needs dehumidifying, cold-producing medium evaporates and absorbs heat in evaporimeter, the temperature of the water in water tank is reduced, new for extraneous high humidity wind is sent into water-bed by blower fan, and air rises with the form of bubble, in the process with water generation heat and mass exchange, by cool-down dehumidification, then enter showcase or storehouse.When air needs humidification, refrigeration unit inverted running, heat is released in cold-producing medium condensation in evaporimeter, and the water in heating water tank, now air is warmed humidification.Dehumidifying is completed by solenoid directional control valve with the switching of humidifying mode.In running, sensor gathers the relative humidity of surrounding air residing for historical relic, Programmable Logic Controller produces according to the deviation between actual humidity and setting humidity and outputs signal, control frequency converter, thus change the running frequency of compressor, to regulate refrigerating capacity or the heating capacity of refrigeration unit, and then control the temperature of Water in Water Tanks, change is to the moisture removal of air or add moisture, and final realization is to the accurate of historical relic envionmental humidity and stability contorting.
Claims (4)
1. adopt the direct contact type constant-moisture device that compressor variable frequency controls, it is characterized in that comprising cabinet (1), blower fan (2), compressor (3), condenser (4), water tank (5), choke valve (6), solenoid directional control valve (7), frequency converter (8), evaporimeter (9); Described compressor (3), condenser (4), solenoid directional control valve (7), choke valve (6), evaporimeter (9) are connected in turn, evaporimeter (9) is placed in water tank (5), blower fan (2) air inlet is in communication with the outside by fresh wind tube (10), blower fan (2) air outlet is connected with jet pipe (11), jet pipe (11) inserts water tank (5) bottom by water tank (5) right side, water tank (5) top is provided with deflector (13), and top outlet inlet is provided with ajutage (12).
2. constant-moisture device according to claim 1, is characterized in that: described jet pipe (11) surface has aperture.
3. constant-moisture device according to claim 1, is characterized in that: the rotating speed of described compressor (3) is controlled by frequency converter (8), and the input of frequency converter (8) is connected on the output module of Programmable Logic Controller (14).
4. the direct contact type constant humidity method using the employing compressor variable frequency of device as claimed in claim 1 to control, it is characterized in that: in running, sensor gathers the relative humidity of environment residing for historical relic, Programmable Logic Controller (14) produces according to the deviation between actual humidity and setting humidity and outputs signal, control frequency converter (8), thus change the running frequency of compressor (3), to regulate refrigerating capacity or the heating capacity of refrigeration unit, and then control the temperature of Water in Water Tanks, change is to the moisture removal of air or add moisture, final realization is to the accurate of historical relic envionmental humidity and stability contorting, refrigerant flow direction is controlled by solenoid directional control valve (7), system switches dehumidifying and humidifying mode by changing refrigerant flow direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410533073.7A CN104279728B (en) | 2014-10-11 | 2014-10-11 | The direct contact type constant-moisture device and its method controlled using compressor variable frequency |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410533073.7A CN104279728B (en) | 2014-10-11 | 2014-10-11 | The direct contact type constant-moisture device and its method controlled using compressor variable frequency |
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| Publication Number | Publication Date |
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| CN104279728A true CN104279728A (en) | 2015-01-14 |
| CN104279728B CN104279728B (en) | 2017-08-15 |
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| CN201410533073.7A Active CN104279728B (en) | 2014-10-11 | 2014-10-11 | The direct contact type constant-moisture device and its method controlled using compressor variable frequency |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110848859A (en) * | 2019-12-02 | 2020-02-28 | 江苏拓米洛环境试验设备有限公司 | Wet air humidifying system and humidifying method |
| CN113157013A (en) * | 2021-04-30 | 2021-07-23 | 东莞市升微机电设备科技有限公司 | Air flow cabin humidity control device and control method |
Citations (6)
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| CN101105318A (en) * | 2007-08-15 | 2008-01-16 | 西安工程大学 | Hydrokinetic type supersonic wave air-conditioning spray chamber |
| CN201177336Y (en) * | 2008-03-19 | 2009-01-07 | 江苏高科应用科学研究所有限公司 | Multi-linked dehumidifier |
| CN101788176A (en) * | 2010-02-08 | 2010-07-28 | 贾长军 | Multi-stage evaporative cooling method and device for air by utilizing permeable dehumidification of solid medium |
| CN202947235U (en) * | 2012-11-28 | 2013-05-22 | 河南科技大学东海硅产业节能技术研究院 | Absorption type cooling and solution dehumidification air conditioning system based on solar heat recovery |
| CN203051057U (en) * | 2012-12-09 | 2013-07-10 | 邹龙军 | Dehumidifying device used for air compressor |
| CN203323275U (en) * | 2013-05-24 | 2013-12-04 | 西安工程大学 | Evaporating, cooling and dehumidifying air conditioner suitable for air compressor to carry out waste heat recovery |
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2014
- 2014-10-11 CN CN201410533073.7A patent/CN104279728B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101105318A (en) * | 2007-08-15 | 2008-01-16 | 西安工程大学 | Hydrokinetic type supersonic wave air-conditioning spray chamber |
| CN201177336Y (en) * | 2008-03-19 | 2009-01-07 | 江苏高科应用科学研究所有限公司 | Multi-linked dehumidifier |
| CN101788176A (en) * | 2010-02-08 | 2010-07-28 | 贾长军 | Multi-stage evaporative cooling method and device for air by utilizing permeable dehumidification of solid medium |
| CN202947235U (en) * | 2012-11-28 | 2013-05-22 | 河南科技大学东海硅产业节能技术研究院 | Absorption type cooling and solution dehumidification air conditioning system based on solar heat recovery |
| CN203051057U (en) * | 2012-12-09 | 2013-07-10 | 邹龙军 | Dehumidifying device used for air compressor |
| CN203323275U (en) * | 2013-05-24 | 2013-12-04 | 西安工程大学 | Evaporating, cooling and dehumidifying air conditioner suitable for air compressor to carry out waste heat recovery |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110848859A (en) * | 2019-12-02 | 2020-02-28 | 江苏拓米洛环境试验设备有限公司 | Wet air humidifying system and humidifying method |
| CN113157013A (en) * | 2021-04-30 | 2021-07-23 | 东莞市升微机电设备科技有限公司 | Air flow cabin humidity control device and control method |
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| Publication number | Publication date |
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| CN104279728B (en) | 2017-08-15 |
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