CN202598734U - Intelligent enthalpy difference control energy-saving air conditioner - Google Patents
Intelligent enthalpy difference control energy-saving air conditioner Download PDFInfo
- Publication number
- CN202598734U CN202598734U CN 201220228028 CN201220228028U CN202598734U CN 202598734 U CN202598734 U CN 202598734U CN 201220228028 CN201220228028 CN 201220228028 CN 201220228028 U CN201220228028 U CN 201220228028U CN 202598734 U CN202598734 U CN 202598734U
- Authority
- CN
- China
- Prior art keywords
- indoor
- valve
- humidification
- outdoor
- check valve
- Prior art date
Links
- 239000003570 air Substances 0.000 title claims abstract description 50
- 239000011901 water Substances 0.000 claims abstract description 90
- 238000005057 refrigeration Methods 0.000 claims abstract description 33
- 239000007788 liquids Substances 0.000 claims description 37
- 238000007710 freezing Methods 0.000 claims description 24
- 229910052731 fluorine Inorganic materials 0.000 claims description 22
- 239000011737 fluorine Substances 0.000 claims description 22
- 125000004122 cyclic group Chemical group 0.000 claims description 18
- 238000010438 heat treatment Methods 0.000 claims description 17
- 239000007921 sprays Substances 0.000 claims description 14
- 238000001816 cooling Methods 0.000 abstract description 20
- 238000000034 methods Methods 0.000 abstract description 9
- 238000001704 evaporation Methods 0.000 abstract description 6
- 230000002035 prolonged Effects 0.000 abstract description 3
- 238000004378 air conditioning Methods 0.000 abstract description 2
- 238000007599 discharging Methods 0.000 abstract 1
- 238000010410 dusting Methods 0.000 abstract 1
- 229910052799 carbon Inorganic materials 0.000 description 11
- 239000003507 refrigerants Substances 0.000 description 9
- 241000196435 Prunus domestica subsp. insititia Species 0.000 description 6
- 239000000203 mixtures Substances 0.000 description 6
- 238000005516 engineering processes Methods 0.000 description 5
- 238000001914 filtration Methods 0.000 description 5
- 238000001035 drying Methods 0.000 description 4
- 239000011521 glasses Substances 0.000 description 4
- OKTJSMMVPCPJKN-UHFFFAOYSA-N carbon Chemical compound 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- 238000009833 condensation Methods 0.000 description 3
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Abstract
Description
Technical field
The utility model relates to a kind of Refrigeration Technique, particularly a kind of intelligent enthalpy difference control energy-saving type air conditioner.
Background technology
Global warming has proposed severe challenge to human survival and development.Along with the continuous growth of global demographic and economic scale, the energy uses environmental problem and the inducement thereof brought constantly to be familiar with by people." carbon footprint " " low-carbon economy " " low carbon technique " " low carbon development " " low-carbon (LC) life style " " low-carbon (LC) society " " low-carbon (LC) city " a series of new ideas, new policies such as " the low-carbon (LC) worlds " arisen at the historic moment; Abandon traditional growth pattern in 20th century; Directly use innovative technology and the innovation mechanism of new century; Through low-carbon economy pattern and low-carbon (LC) life style, realize social sustainable development.
The thermic load of machine rooms such as communications equipment room, data machine room, automation machine room, base station is bigger, even the time air conditioner in machine room also is to be in refrigeration and humidification state in the winter time, because machine room is totally enclosed, extraneous low-temperature receiver can't utilize again.Many power-saving technologies are arranged at present, as: mode outdoor cold air is direct or heat exchange is introduced machine room, and the former efficient is higher, but outdoor air is dirtier, and the cleanliness factor of machine room can not get solving, humidity can not get ensureing; Latter's heat exchanger effectiveness is lower, but humidity can not get solving and the two does not all make full use of the air ability of outdoor low enthalpy.
Summary of the invention
The technical problem that the utility model will solve is the deficiency to prior art, has proposed a kind of air energy that utilizes outdoor low enthalpy substantially, realizes the intelligent enthalpy difference control energy-saving type air conditioner of low-carbon (LC), energy-saving and environmental protection.
The technical problem that the utility model will solve realizes through following technical scheme; A kind of intelligent enthalpy difference control energy-saving type air conditioner; Be provided with indoor set and off-premises station; Indoor set comprises evaporimeter, indoor fan and compressor, and off-premises station comprises condenser and outdoor fan, is characterized in: comprise mechanical refrigeration loop and freezing by change of state loop; The loop of being made up of the pipeline of compressor, condenser, cold-producing medium fluid reservoir, heating power expansion valve, separating tube, evaporimeter, gas-liquid separator and connection successively constitutes the mechanical refrigeration loop; The check valve I is housed on the tube connector between cold-producing medium fluid reservoir and the heating power expansion valve, and the parallelly connected branch road I of being made up of magnetic valve I, anti-fluorine circulation magnetic force liquid pump and check valve II that is provided with the check valve I is provided with the check valve III between heating power expansion valve and the separating tube; The parallelly connected branch road II of forming by the magnetic valve II that is provided with heating power expansion valve and check valve III; Be provided with the branch road III of being made up of magnetic valve III and check valve IV with gas-liquid separator and compressor parallel, the loop of being made up of the pipeline of anti-fluorine circulation magnetic force liquid pump, check valve II, magnetic valve II, separating tube, evaporimeter, magnetic valve III, check valve IV, condenser, cold-producing medium fluid reservoir and connection successively constitutes the freezing by change of state loop, is provided with the humidification cyclic water tank in the bottom of indoor set; The air inlet place of indoor set is provided with the humidification cascade; Be provided with humidification circulation immersible pump in the humidification cyclic water tank, the outlet pipe of humidification circulation immersible pump and humidification water tank cascade join, and the bottom of off-premises station is provided with cistern; Spray assembly being provided with above the condenser; Below condenser, be provided with spray assembly down, be provided with the immersible pump that joins with last spray assembly and following spray assembly in the cistern, the bottom of cistern joins through the water inlet pipe of the humidification cyclic water tank of conduit and magnetic valve IV and indoor set.
The technical problem that the utility model will solve can also further realized, on the conduit between said cistern to the humidification cyclic water tank self priming pump or electrical ball valve is housed through following technical scheme.
The technical problem that the utility model will solve can also further realize through following technical scheme, in indoor set evaporimeter below be provided with drip tray, drip tray communicates with the humidification cyclic water tank through connecting water pipe.
The utility model compared with prior art; This enthalpy difference energy-saving type air conditioner unit has been abandoned traditional refrigeration system; With outdoor design of condenser is the cooling tower form, and condenser adopts the air-cooled mode that combines with water-cooled, thereby utilizes the air of outdoor low enthalpy substantially.The control mode of utilizing indoor and outdoor air enthalpy difference or outdoor air wet-bulb temperature and indoor temperature, humidity variation to combine realizes energy exchange.Outdoor cooling tower adopts the direct evaporation cooling technique of forced negative pressure to realize the utilization of outdoor low enthalpy air, perfectly combines to realize with automatic switchover the energy exchange of the air of indoor high enthalpy through freezing by change of state and mechanical refrigeration.The water that makes full use of low enthalpy in outdoor cooling tower or the cooler carries out humidification, cooling, dust removal process to indoor environment.
When mechanical refrigeration, further reduce condensation temperature, condensing pressure, reduce compressor operating pressure and operating current, refrigerating efficiency improves greatly, and Energy Efficiency Ratio promotes greatly.Indoor humidification system adopts the water of the low enthalpy of off-premises station cooling tower, adopts the wet-film humidifying technology, not only room air is further purified, and the water of low enthalpy can further be lowered the temperature to room air simultaneously, makes full use of the air ability of outdoor low enthalpy.
Under the same conditions, the condensation temperature of cold-producing medium reduces, and condensing pressure reduces, and under identical cooling condition, the pressure at expulsion of compressor reduces, and operating current reduces, and obtains bigger refrigerating capacity, and Energy Efficiency Ratio is further enhanced.Reduced the energy-conservation air conditioner in machine room of enthalpy difference configuration, prolonged enthalpy difference energy-saving type air conditioner unit compressor service life, practiced thrift operation expense, reach energy saving purposes.Indoor humidification has adopted the wet-film humidifying technology simultaneously, and not only the quality of air is improved, but also has prolonged the energy-conservation enthalpy difference air-conditioning unit airstrainer replacement cycle.
Description of drawings
Fig. 1 is the structure diagram of the utility model.
Fig. 2 is the indoor machine structure sketch map.
Fig. 3 is a humidification cyclic water tank structure chart.
The specific embodiment
A kind of intelligent enthalpy difference control energy-saving type air conditioner; Be provided with indoor set and off-premises station; Indoor set comprises evaporimeter, indoor fan and compressor; Off-premises station comprises condenser and outdoor fan; Comprise mechanical refrigeration loop and freezing by change of state loop, the loop of being made up of the pipeline of compressor, condenser, cold-producing medium fluid reservoir, heating power expansion valve, separating tube, evaporimeter, gas-liquid separator, anti-fluorine circulation magnetic force liquid pump and connection successively constitutes the mechanical refrigeration loop, and the check valve I is housed on the tube connector between cold-producing medium fluid reservoir and the heating power expansion valve; The parallelly connected branch road I of forming by magnetic valve I, anti-fluorine circulation magnetic force liquid pump and check valve II that is provided with the check valve I; Be provided with the check valve III between heating power expansion valve and the separating tube, the parallelly connected branch road II of being made up of the magnetic valve II that is provided with heating power expansion valve and check valve III is provided with the branch road III of being made up of magnetic valve III and check valve IV with gas-liquid separator and compressor parallel; The loop of being made up of the pipeline of anti-fluorine circulation magnetic force liquid pump, check valve II, magnetic valve II, separating tube, evaporimeter, magnetic valve III, check valve IV, condenser, cold-producing medium fluid reservoir and connection successively constitutes the freezing by change of state loop; Be provided with the humidification cyclic water tank in the bottom of indoor set, the air inlet place of indoor set is provided with the humidification cascade, is provided with humidification circulation immersible pump in the humidification cyclic water tank; The outlet pipe of humidification circulation immersible pump and humidification water tank cascade join; The bottom of off-premises station is provided with cistern, sprays assembly being provided with above the condenser, below condenser, is provided with spray assembly down; Be provided with the immersible pump that joins with last spray assembly and following spray assembly in the cistern, the bottom of cistern joins through the water inlet pipe of the humidification cyclic water tank of conduit and magnetic valve IV and indoor set.
On the conduit between said cistern to the humidification cyclic water tank self priming pump or electrical ball valve are housed.
In indoor set evaporimeter below be provided with drip tray, drip tray communicates with the humidification cyclic water tank through connecting water pipe.
Various piece as shown in the figure is formed concrete narration as follows:
(1) composition of mechanical refrigeration system part: compressor 1, high pressure sensor 2, check valve 3, pressure sensor 4, condenser 6; Fluid reservoir 21, check valve I 41, manual ball valve 26, device for drying and filtering 27, liquid-sighting glass 28; Expansion valve 29, check valve III 30, indoor evaporator 32, magnetic valve 38; Gas-liquid separator 39, low pressure sensor 40 reaches compositions such as connecting the copper pipe pipeline, and 42 is balance pipe.
Cold-producing medium fluid reservoir 21 is used for the unnecessary cold-producing medium of savings system, has sufficient cold-producing medium when guaranteeing system works; Device for drying and filtering 27 is used for cold-producing medium is carried out drying and filtration treatment, ensures that heating power expansion valve 29 is difficult for blocked and form ice at the heating power expansion valve place stifled etc.; Gas-liquid separator 39 is that the cold-producing medium that comes out from evaporimeter is carried out gas-liquid separation, and gaseous refrigerant is sent into compressor 1 and formed circulation, and liquid refrigerant then retains in the gas-liquid separator 39.Whether low pressure sensor 40 lacks cold-producing medium as detecting refrigeration system, and whether refrigeration system is stopped up, and detects the refrigeration system low pressure and designs.High pressure sensor 2 is as detecting the refrigeration system high pressure pressure, is higher than when setting threshold value when detecting refrigeration system high pressure pressure, protection overload of compressor, design such as overheated.
(2) composition of freezing by change of state components of system as directed: indoor evaporator 32 (with the shared evaporimeter of mechanical refrigeration system), magnetic valve I 22, anti-fluorine circulation magnetic force liquid pump 23, flowmeter 24; Check valve II 25, manual ball valve 26, device for drying and filtering 27; Liquid-sighting glass 28, pressure sensor 33, magnetic valve II 34; Indoor evaporator 32, magnetic valve III 36, compositions such as check valve 35 and connection copper pipe pipeline.
When preventing anti-fluorine circulation magnetic force liquid pump 23 freezing by change of state; Cold-producing medium refluxes through the pipeline between cold-producing medium fluid reservoir 21 and the manual ball valve 26 in anti-fluorine circulation magnetic force liquid pump 23 pipelines; Cause the refrigerant flow direction short circuit, the circuit design between cold-producing medium fluid reservoir 21 and manual ball valve 26 check valve 41.For the ease of the state of observation refrigeration system cold-producing medium and the aridity of system, designed liquid-sighting glass 28.When preventing mechanical refrigeration; Cold-producing medium flows directly into evaporimeter; Between evaporimeter isocon 31 and liquid-sighting glass 28, designed magnetic valve II 34, when mechanical refrigeration, magnetic valve II 34 is in closed condition; In order to prevent that anti-fluorine circulation magnetic force liquid pump 23 from passing through heating power expansion valve 29 when freezing and refluxing, between evaporimeter isocon 31 and heating power expansion valve 29, designed check valve 30 simultaneously.When preventing anti-fluorine circulation magnetic force liquid pump 23 freezing by change of state, cold-producing medium flows in the gas-liquid separator 39, between evaporimeter and gas-liquid separator 39, has designed magnetic valve 38 and (during anti-fluorine circulation magnetic force liquid pump 23 freezing by change of state, has closed; During mechanical refrigeration, open).Between compressor 1 exhaust outlet and anti-fluorine circulation magnetic force liquid pump refrigeration pipe, designed check valve 3, when preventing anti-fluorine circulation magnetic force liquid pump 23 freezing by change of state, cold-producing medium flows in the compressor 1.Check valve 35 and magnetic valve III 36 are when preventing mechanical refrigeration, and the anti-gas-liquid separator 39 that flows back to of cold-producing medium causes the refrigerant flow direction can be disorderly.Pressure sensor 33 is in order to detect the signal that when fluorine circulation magnetic force liquid pump 23 freezing by change of state (anti-) gets into the pressure of evaporator refrigerant, to make converting operation thereby control anti-fluorine circulation magnetic force liquid pump 23 through intelligent controller, making freezing by change of state reach maximization.Pressure sensor 4 is when mechanical refrigeration, and blower fan of cooling tower 43 is made variable-speed operation according to the variation of the refrigerant pressure in the condenser coil, and it is 15BAR that the force value of pressure sensor 4 can be regulated general setting value.
(3) composition of indoor set humidification system part: humidification cyclic water tank 56, humidification cascade 57, humidification water cord hydrophone inlet 59; Screen pack 60, condensate pipe be to humidification water tank connecting pipe 53, drip tray 61; Drip tray delivery port 64, indoor fan 62, air-supply cap 63; Water filter 44,47, magnetic valve 45,46.In the humidification cyclic water tank: humidification circulation immersible pump 48, sluicing blowdown electrical ball valve 49, water tank low water level alarm ball float 50, water tank water intake ball float 51, the water tank ball float 52 of cutting off the water, spilling water alarm ball float 54, gap pipeline 55.
Off-premises station cooling Tower System is formed: on spray assembly 5, following spray assembly 7, off-premises station air inlet 8, outdoor fan 43.In the cistern: spilling water alarm ball float 9, the ball float 10 of cutting off the water, water inlet ball float 11, low water level alarm ball float 12, sluicing electrical ball valve 13, circulation immersible pump 14.To indoor humidification water tank electrical ball valve or self-priming water pump 15, to indoor humidification water tank pipeline 16, the electrical ball valve 17 that always sluices, water inlet electrical ball valve 18,19, gap pipe 20,66 is mechanical float switch.
If in running; Water inlet ball float 51 in the water tank becomes normally open by normally off and the ball float 52 of cutting off the water during for normally off; Opening into water electrical ball valve 45 opens or opens with electrical ball valve or self-priming water pump 15; After this ball float 51 of intaking becomes out state by closure state and the ball float 52 of cutting off the water becomes closure state by the state of opening, and magnetic valve 45 cuts out with electrical ball valve or self-priming water pump 15.
When the water inlet ball float 11 of 58 li of cisterns becomes normally open by normally off and the ball float 10 of cutting off the water during for normally off; Open into water electrical ball valve 1 and electrical ball valve 19; After this ball float 11 of intaking becomes out state by closure state and the ball float 10 of cutting off the water becomes closure state by the state of opening, and has intelligent controller order water inlet electrical ball valve 18 and 19 to close.
Machinery ball float 66 causes the cistern spilling water in order to prevent electrical ball valve to be not closed completely and designs.Sluicing electrical ball valve 13 is in order regularly cleaning cistern, winter to prevent that cistern from freezing and automatic drainage.Low water level alarm ball float 13 is to have designed in order to protect the circulation immersible pump, in case water circulating pump moves under the anhydrous situation of cistern and alarm prompt.Spilling water alarm ball float 9 is in order to prevent under all bad situation of mechanical ball float 66 and water inlet electrical ball valve 19 and 18, and pipeline is not closed completely to leak and causes the also alarm prompt of wasting water and designing to cistern.Electrical ball valve 17 is in order to prevent that water in the pipeline in winter from freezing and the emptying electrical ball valve that designs; Open simultaneously through intelligent controller order electrical ball valve 17 and electrical ball valve 19 and to realize emptying requiring electrical ball valve 17 to be installed in the minimum point of whole supply channel simultaneously.
Sluicing magnetic valve 49 is in order regularly to clean the water tank automatic drainage.Low water level alarm ball float 50 is to have designed in order to protect the circulation immersible pump, in case water circulating pump moves under the anhydrous situation of cistern and alarm prompt.Spilling water alarm ball float 54 is in order to prevent under all bad situation of water electrical ball valve 45 or 46 into, pipeline be not closed completely leak cause to water tank waste water and design and alarm prompt.Sluicing magnetic valve 49 is in order regularly to clean the water tank automatic drainage.Low water level alarm ball float 50 is to have designed in order to protect the circulation immersible pump, in case water circulating pump moves under the anhydrous situation of cistern and alarm prompt.Spilling water alarm ball float 54 is in order to prevent under all bad situation of water electrical ball valve 45 or 46 into, pipeline be not closed completely leak cause to water tank waste water and design and alarm prompt.
(4), can adopt I and II electric heating tube, overheat protective relay etc. to form the heating system part.
(5), other compositions: indoor and outdoor blower fan, indoor air filtration net, intelligence control system and other electricity piece and the alarm of indoor fan overload, airstrainer obstruction alarm, the alarm of indoor and outdoor water pump, the alarm of anti-fluorine circulation magnetic force liquid pump, overload of compressor alarm, the water damage alarm that leaks, air-flow are lost alarm sensor parts such as alarm.
When outdoor dry-bulb temperature was higher than 0.5 ℃, what indoor humidifying technology adopted was the water of low enthalpy in the outdoor cooling tower, through the humidification cascade room air was carried out humidification, dedusting, cooling processing; Be lower than 0.5 when spending at outdoor dry-bulb temperature, indoor what add that wet process adopts is that water in the indoor feed pipe adds wet process through the humidification cascade.
Greater than 0.5-3 ℃ during again less than 8-20 ℃, the cold-producing medium in the condenser coil is to lean on water (water temperature is near its outdoor air wet-bulb temperature at that time) evaporation in the cooling tower to carry out energy exchange at outdoor wet-bulb temperature, and efficient provides greatly.When outdoor wet-bulb temperature during less than 0-2 ℃; Cold-producing medium in the condenser coil is to lean on the water in the cooling tower to make intermittent shower (because the moisture film in the condenser coil was prone to freeze in this temperature stage; In order to prevent that the condenser coil fin from freezing, and does intermittent shower) evaporation carries out energy exchange.When outdoor wet-bulb temperature during less than 0 ℃, the cold-producing medium in the condenser coil leans on outdoor cold dry air to carry out energy exchange.
Even do not satisfy setting value or condition satisfies at indoor-outdoor air enthalpy difference value or outdoor air wet-bulb temperature; If freezing by change of state is after operation a period of time; When the indoor temperature value greater than indoor when setting higher limit+Δ T (general (1-3) ℃ between feasible the setting); Cold-producing medium in the condenser coil leans on water (water temperature is near its outdoor air wet-bulb temperature at that time) evaporation carrying out energy exchange in the cooling tower; Efficient improves greatly, has reduced the operating current of condensing pressure and condensation temperature and compressor simultaneously, and Energy Efficiency Ratio is further enhanced.
Temperature, the humidity of freezing by change of state and mechanically refrigerated conversion enthalpy difference or outdoor air wet-bulb temperature and the room air through the indoor and outdoor air changes controls realization.Changing each other between freezing by change of state and the mechanical refrigeration has time-delay to control, and promptly converting mechanical refrigeration into from freezing by change of state has time-delay each other, is generally 60-180 second.Similar techniques is to control realization through the dry-bulb temperature difference of indoor and outdoor air at present.
During freezing by change of state, anti-fluorine circulation magnetic force liquid pump is realized converting operation through pressure sensor, guarantees that the evaporating pressure of refrigeration system maintains certain scope (generally in 2.2-4.5BAR).When mechanical refrigeration, indoor temperature unconditionally starts the freezing by change of state system when setting higher limit if the overload alarm appears in compressor, ensures the rising that indoor temperature can be not unlimited.
Off-premises station cooling tower carries out energy exchange with the energy of outdoor low enthalpy air through circulation line and indoor high enthalpy air; (do not satisfy in the indoor and outdoor enthalpy difference and to set when requiring through anti-fluorine circulation magnetic force liquid pump or compressor; Compressor just is able to delayed start-up) with the gaseous refrigerant of high enthalpy; Send into outdoor cooling tower or cooler and outdoor low enthalpy air energy and after exchanging; The high enthalpy gaseous refrigerant of high temperature is become the liquid refrigerant of the low enthalpy of low temperature; Through anti-fluorine circulation magnetic force liquid pump or compressor (do not satisfy set when requiring in the indoor and outdoor enthalpy difference, compressor just is able to delayed start-up)) or the weight of cold-producing medium self (require this moment the outer unit of installation room higher more than 1 meter) entering indoor units evaporimeter than the height of indoor units itself carry out energy exchange, above process circular flow.
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102654298A (en) * | 2012-05-21 | 2012-09-05 | 徐兴江 | Intelligent enthalpy difference control energy-saving air conditioner and control method thereof |
| CN102997346A (en) * | 2012-12-24 | 2013-03-27 | 王涛 | Novel energy-efficient cooling dehumidifier |
| CN103499137A (en) * | 2013-09-02 | 2014-01-08 | 艾默生网络能源有限公司 | Method, device and system for controlling refrigeration of computer room |
| WO2018010145A1 (en) * | 2016-07-14 | 2018-01-18 | 深圳市艾特网能技术有限公司 | Energy-saving server room air conditioner and control method therefor |
| CN109000337A (en) * | 2017-05-31 | 2018-12-14 | 奥克斯空调股份有限公司 | A kind of leakage of refrigerant guard method |
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2012
- 2012-05-21 CN CN 201220228028 patent/CN202598734U/en not_active IP Right Cessation
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102654298A (en) * | 2012-05-21 | 2012-09-05 | 徐兴江 | Intelligent enthalpy difference control energy-saving air conditioner and control method thereof |
| CN102654298B (en) * | 2012-05-21 | 2014-06-18 | 徐兴江 | Intelligent enthalpy difference control energy-saving air conditioner and control method thereof |
| CN102997346A (en) * | 2012-12-24 | 2013-03-27 | 王涛 | Novel energy-efficient cooling dehumidifier |
| CN103499137A (en) * | 2013-09-02 | 2014-01-08 | 艾默生网络能源有限公司 | Method, device and system for controlling refrigeration of computer room |
| CN103499137B (en) * | 2013-09-02 | 2017-01-04 | 艾默生网络能源有限公司 | The refrigeration control method of a kind of machine room, Apparatus and system |
| WO2018010145A1 (en) * | 2016-07-14 | 2018-01-18 | 深圳市艾特网能技术有限公司 | Energy-saving server room air conditioner and control method therefor |
| CN109000337A (en) * | 2017-05-31 | 2018-12-14 | 奥克斯空调股份有限公司 | A kind of leakage of refrigerant guard method |
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