CN202709319U - Energy-saving air conditioning system with intelligent targeted refrigeration function - Google Patents
Energy-saving air conditioning system with intelligent targeted refrigeration function Download PDFInfo
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- CN202709319U CN202709319U CN 201220407654 CN201220407654U CN202709319U CN 202709319 U CN202709319 U CN 202709319U CN 201220407654 CN201220407654 CN 201220407654 CN 201220407654 U CN201220407654 U CN 201220407654U CN 202709319 U CN202709319 U CN 202709319U
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Abstract
The utility model relates to an energy-saving air conditioning system with an intelligent targeted refrigeration function, which is provided with an indoor unit and an outdoor unit, wherein the indoor unit comprises a cabinet evaporator coil, a dehumidification evaporator, an indoor fan and a compressor; and the outdoor unit comprises a condenser and an outdoor fan. Energy exchange is realized by utilizing a control mode of combining indoor and outdoor air enthalpy difference or outdoor air wet bulb temperature and indoor temperature and humidity change. The utility model also relates to a heat dissipating and cooling technology of a high heating value cabinet of a generator room, wherein the evaporation coil of the energy-saving air conditioning system with the intelligent targeted refrigeration function is arranged at the inner side of a panel of the indoor high heating value cabinet. The dehumidification evaporator is arranged in the indoor unit and used for dehumidification treatment only. Due to adoption of a double-refrigeration circulating system and a double-refrigeration mode technology, the energy-saving air-conditioning system sufficiently ensures that the high heating value cabinet operates stably under a constant-temperature and constant-humidity environment. A cooling tower adopts a forced negative-pressure direct evaporative cooling technology, realizes sufficient utilization of outdoor air with low enthalpy value, perfect combination and automatic switchover between a phase-change refrigeration circulating system and a mechanical refrigeration circulating system and energy exchange of indoor air with high enthalpy value. Meanwhile, water with low enthalpy value in the cooling tower is sufficiently utilized to carry out humidification, cooling and dust removal treatment on an indoor environment. Under the same outdoor condition, the condensation temperature and the condensation pressure of a refrigerant are reduced; the evaporation temperature and the evaporation pressure of the refrigerant are improved, so that under the same refrigeration condition, the exhaust pressure of a compressor is reduced, the working current of the compressor is reduced, larger refrigerating capacity is obtained and the energy efficiency ratio is further increased. Therefore, the configuration of the energy-saving air-conditioning system with the intelligent targeted refrigeration is reduced, the service life of the compressor and the indoor fan is prolonged, and therefore the purposes of saving energy and reducing emission are achieved.
Description
Technical field
The utility model relates to a kind of Refrigeration Technique, particularly a kind of Intelligent fixed point refrigerated energy-saving air-conditioning system.
Background technology
Global warming has proposed severe challenge to human survival and development.Along with the continuous growth of population in the world and economic scale, the energy is used environmental problem and the inducement thereof brought constantly to be familiar with by people." carbon footprint " " low-carbon economy " " low-carbon technology " " 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 " Low Carbon Worlds " are arisen at the historic moment, abandon traditional growth pattern in 20th century, directly apply innovative technology and the innovation mechanism of new century, by low-carbon economy pattern and low-carbon (LC) life style, realize social sustainable development.
The thermic load of the machine rooms such as communications equipment room, data center module, automatic machine room, mobile base station is larger, even the time air conditioner in machine room is also to be in refrigeration and humidification state in the winter time, totally enclosed due to machine room again, extraneous low-temperature receiver can't utilize.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 efficiency 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 solution, and the two does not all take full advantage of the air energy of outdoor low enthalpy.
Currently available technology can only be to the indoor machine cabinet processing of lowering the temperature, and can not ensure the humidity of indoor environment, and the dry season indoor air humidity is on the low side, easily produces higher electrostatic potential between circuit board, easily causes short circuit between circuit board; The wet season indoor air humidity is higher, easily causes between electronic devices and components and forms path, thereby cause short circuit between circuit.
Summary of the invention
The technical problems to be solved in the utility model is for the deficiencies in the prior art, has proposed a kind of rack of abundant assurance high-density heating amount, the Intelligent fixed point refrigerated energy-saving air-conditioning system of stable operation under constant-temperature constant-humidity environment.
The technical problems to be solved in the utility model is achieved through the following technical solutions, a kind of Intelligent fixed point refrigerated energy-saving air-conditioning system, be provided with indoor set and off-premises station, off-premises station comprises condenser and outdoor fan, be characterized in: indoor set comprises the rack evaporation coil, the dehumidifying evaporimeter, indoor fan and compressor, comprise mechanical refrigeration circulation loop and freezing by change of state circulation loop, by compressor, condenser, the check valve I, heating power expansion valve, the check valve III, the rack evaporation coil, magnetic valve
, the loop that forms of gas-liquid separator and the pipeline that connects successively forms the mechanical refrigeration circulation loop, the be provided with branch road II that by magnetic valve II formed in parallel with heating power expansion valve and check valve III, be provided with gas-liquid separator and compressor parallel the branch road III be comprised of magnetic valve III and check valve IV, the loop be comprised of condenser, check valve I, branch road II, rack evaporation coil, branch road III and the pipeline that connects successively forms the freezing by change of state circulation loop, form the dehumidifying bypass by magnetic valve V, separating tube, dehumidifying evaporimeter, the dehumidifying bypass is connected between check valve III and rack evaporation coil.
The technical problems to be solved in the utility model can also be come further to realize by the following technical programs, freezing by change of state circulation auxiliary branch while being provided with off-premises station lower than indoor set in parallel with the check valve I, above-mentioned freezing by change of state circulation auxiliary branch comprises that magnetic valve I, cold-producing medium fluid reservoir, the magnetic force of anti-fluorine liquid pump, check valve II form.
The technical problems to be solved in the utility model can also be come further to realize by the following technical programs, 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, be provided with the humidification water circulating pump in the humidification cyclic water tank, the outlet pipe of humidification water circulating pump and humidification water tank cascade join, the bottom of off-premises station is provided with cistern, spray assembly being provided with above condenser, be provided with lower spray assembly below condenser, be provided with the water pump joined with upper spray assembly and lower spray assembly in cistern, the bottom of cistern joins by the water inlet pipe of the humidification cyclic water tank of conduit and magnetic valve IV and indoor set.
The technical problems to be solved in the utility model can also come further to realize by the following technical programs, and described cistern is equipped with self-priming water pump or electrical ball valve and water filter to the conduit between the humidification cyclic water tank.
The technical problems to be solved in the utility model can also be come further to realize by the following technical programs, below the evaporimeter that dehumidifies in indoor set, is provided with drip tray, and drip tray communicates with the humidification cyclic water tank by connecting water pipe.
The technical problems to be solved in the utility model can also come further to realize by the following technical programs, and described rack evaporation coil consists of the parallel connection of some coil pipe groups, and each coil pipe group is arranged in the panel inboard of indoor heat-producing device.
The technical problems to be solved in the utility model can also be come further to realize by the following technical programs, at least is furnished with two cover coil pipe groups in the panel inboard of indoor heat-producing device, every cover coil pipe group all with separately independently cooling cycle system join.
The utility model compared with prior art, this Intelligent fixed point refrigerated energy-saving air-conditioning system has been abandoned traditional refrigeration system, by outdoor design of condenser, be the cooling tower form, condenser adopts the air-cooled mode combined with evaporative cooling, thereby utilizes substantially the air of outdoor low enthalpy.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, and by freezing by change of state and mechanical refrigeration, perfectly combination and automatic switchover realize the energy exchange of the air of indoor high enthalpy value.The water that takes full advantage of low enthalpy in outdoor cooling tower carries out humidification, cooling, dust removal process to indoor environment.
When mechanical refrigeration, further reduce condensation temperature and condensing pressure, improve evaporating temperature and evaporating 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 the cooling tower of off-premises station, 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, takes full advantage of the air energy of outdoor low enthalpy.
Under the same conditions, the condensation temperature of cold-producing medium reduces, and condensing pressure reduces; The evaporating temperature of cold-producing medium and the raising of evaporating pressure, under identical cooling condition, the pressure at expulsion of compressor reduces, and operating current reduces, and obtains larger refrigerating capacity, and Energy Efficiency Ratio is further enhanced.Reduced Intelligent fixed point refrigerated energy-saving air-conditioning system configuration, extended Intelligent fixed point refrigerated energy-saving air-conditioning compressor service life, saved operation expense, reach energy-saving and cost-reducing purpose.The indoor wet-film humidifying technology that adopted of while, not only the quality of air is improved, but also has extended the Intelligent fixed point refrigerated energy-saving air-conditioning system airstrainer replacement cycle.
The accompanying drawing explanation
Fig. 1 is structure diagram of the present utility model.
Fig. 2 is the indoor machine structure schematic diagram.
Fig. 3 is humidification cyclic water tank structure chart.
The specific embodiment
A kind of Intelligent fixed point refrigerated energy-saving air-conditioning system, be provided with indoor set and off-premises station, off-premises station comprises condenser and outdoor fan, indoor set comprises rack evaporation coil, dehumidifying evaporimeter, indoor fan and compressor, comprise mechanical refrigeration circulation loop and freezing by change of state circulation loop, by compressor, condenser, check valve I, heating power expansion valve, check valve III, rack evaporation coil, magnetic valve
, the loop that forms of gas-liquid separator and the pipeline that connects successively forms the mechanical refrigeration circulation loop; The be provided with branch road II that by magnetic valve II formed in parallel with heating power expansion valve and check valve III, be provided with gas-liquid separator and compressor parallel the branch road III be comprised of magnetic valve III and check valve IV, the loop be comprised of condenser, check valve I, branch road II, rack evaporation coil, branch road III and the pipeline that connects successively forms the freezing by change of state circulation loop; Form the dehumidifying bypass by magnetic valve V, separating tube, dehumidifying evaporimeter, the dehumidifying bypass is connected between check valve III and rack evaporation coil.
Freezing by change of state circulation auxiliary branch while being provided with off-premises station lower than indoor set in parallel with the check valve I, above-mentioned freezing by change of state circulation auxiliary branch comprises that magnetic valve I, cold-producing medium fluid reservoir, the magnetic force of anti-fluorine liquid pump, check valve II form.
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, be provided with the humidification water circulating pump in the humidification cyclic water tank, the outlet pipe of humidification water circulating pump and humidification water tank cascade join, the bottom of off-premises station is provided with cistern, spray assembly being provided with above condenser, be provided with lower spray assembly below condenser, be provided with the water pump joined with upper spray assembly and lower spray assembly in cistern, the bottom of cistern joins by the water inlet pipe of the humidification cyclic water tank of conduit and magnetic valve IV and indoor set.
Described cistern is equipped with self-priming water pump or electrical ball valve and water filter to the conduit between the humidification cyclic water tank.
In indoor set the dehumidifying evaporimeter below be provided with drip tray, drip tray communicates with the humidification cyclic water tank by connecting water pipe.
Described rack evaporation coil consists of the parallel connection of some coil pipe groups, and each coil pipe group is arranged in the panel inboard of indoor heat-producing device.
At least be furnished with two cover coil pipe groups in the panel inboard of indoor heat-producing device, every cover coil pipe group is all joined with cooling cycle system independently.
Two cooling cycle systems that the utility model adopts, each system independent operating.Two kinds of refrigeration modes to a cooling cycle system in patent specification---be that two kinds of patterns of mechanical refrigeration and freezing by change of state are set forth.Also can adopt two or more cooling cycle systems, but each cooling cycle system is all relatively independent and complementary.
The patented technology at me---intelligent enthalpy difference is controlled the (application for a patent for invention number: 201210127588.2 and utility application number: 201220228018.7) a kind of Refrigeration Technique of extension utility model on basis of energy-saving type air conditioner and control method thereof.The utility model relates to the radiating and cooling technology of machine room high-density heating amount rack, by the evaporation coil of Intelligent fixed point refrigerated energy-saving air-conditioning system, is arranged on indoor high-density caloric value cabinet panel.The dehumidifying evaporimeter is arranged in indoor set, only makes dehumidification treatments.Adopt the technology of two cooling cycle systems and two refrigeration modes, fully guarantee the rack of high-density heating amount, stable operation under constant-temperature constant-humidity environment.
A kind of control method of Intelligent fixed point refrigerated energy-saving air-conditioning system
(1), the freezing by change of state circulatory system:
After Intelligent fixed point refrigerated energy-saving air-conditioning system is opened, indoor fan is done variable-speed operation according to the variation of indoor humidity, when indoor, outer air enthalpy difference value or outdoor air wet bulb temperature meet the condition set, outdoor dry-bulb temperature of while is greater than 0-3 ℃, and (but this parameter people is for being arranged, also can in program, write a fixed value, as 0.5 ℃) between certain when setting value, if being greater than, indoor temperature or indoor humidity set higher limit, magnetic valve I (while selecting outdoor extension cabinet), II, III is opened, the work of freezing by change of state circulation loop, water circulating pump after 30 seconds in the off-premises station cistern starts, outdoor fan is according to refrigeration system pressure signal variable-speed operation, after 30 seconds, auxiliary branch (while the selecting outdoor extension cabinet) magnetic force of anti-fluorine liquid pump is according to refrigeration system pressure signal converting operation.If now indoor temperature and humidity all are greater than and set higher limit, the magnetic valve V is opened automatically, indoor fan is done variable-speed operation according to the variation of indoor humidity, when indoor temperature is less than the lower limit that sets and indoor humidity and is less than the higher limit set, the freezing by change of state loop quits work, and the indoor and outdoor blower fan is out of service.Set higher limit if now only have indoor temperature to be greater than, the magnetic valve V is closed automatically, and indoor fan is out of service.If now indoor humidity is less than and sets lower limit, indoor fan is made variable-speed operation, and the humidification water circulating pump is opened, and to indoor, is added wet process, and when indoor humidity is greater than while setting higher limit, the humidification water circulating pump cuts out, and indoor fan is out of service.So circular flow.
(ii), off-premises station water cycle process: only, when outdoor dry-bulb temperature is greater than between 0-3 ℃ (but this parameter people also can be write fixed value, as 1 ℃ for arranging in program) certain setting value, the water in the off-premises station cistern just is able to circular flow.When between be less than-5-0 of outdoor dry-bulb temperature ℃ (but this parameter people also can be write a fixed value, as-2 ℃ for arranging in program), certain sets value, electrical ball valve 13,17,19 is opened automatically, electrical ball valve 18 is closed automatically, and the water automatic-discharging of cistern, with anti-freeze; When outdoor dry-bulb temperature is greater than between 0-3 ℃ (but this parameter people also can be write fixed value, as 2 ℃ for arranging in program) certain setting value, electrical ball valve 13,17 is closed automatically, and electrical ball valve 18,19 is opened automatically simultaneously.
The humidification system cyclic process:
(but this parameter people is for being arranged to be less than 0-3 ℃ at outdoor dry-bulb temperature, also can in program, write a fixed value, as 0.5 ℃) between certain when setting value, when if the humidity of room air is less than the lower limit set, the humidification water circulating pump is opened, water in the humidification water tank is squeezed in the water-locator of humidification cascade, and then to the humidification cascade, send into and indoor indoor environment is lowered the temperature and added wet process by indoor fan, when indoor humidity reaches the higher limit set, the humidification water circulating pump is out of service; If now the water in indoor humidification water tank, lower than the water inlet test point, is opened electrical ball valve or magnetic valve 46, the water in water inlet manifold is squeezed in indoor humidification water tank.Water in indoor humidification water tank reaches while into water, stopping monitoring point, closes electrical ball valve or magnetic valve 46.
(but this parameter people is for being arranged to be greater than 0-3 ℃ at outdoor dry-bulb temperature, also can in program, write a fixed value, as 1 ℃) between certain when setting value, when if the humidity of room air is less than the lower limit set, humidification water circulating pump in indoor humidification water tank is opened, water in the humidification water tank is squeezed in the water-locator of humidification cascade, and then to the humidification cascade, send into and indoor indoor environment is lowered the temperature and added wet process by indoor fan, when indoor humidity reaches the higher limit set, the humidification water circulating pump is out of service, humidification system quits work, indoor fan is also out of service.If now the water in indoor humidification water tank is lower than the water inlet test point, in opening chamber, with outdoor cistern connecting line self-priming water pump or electrical ball valve, the water of the low enthalpy of outdoor cistern is squeezed in indoor humidification water tank.Water in indoor humidification water tank reaches and stops inside and outside the Shi， close chamber of monitoring point self priming pump or electrical ball valve on the cistern connecting line into water.
(iii), the mechanical refrigeration circulatory system:
After Intelligent fixed point refrigerated energy-saving air-conditioning system is opened, indoor fan is done variable-speed operation according to the variation of indoor humidity, when indoor and outdoor air enthalpy difference value or outdoor air wet bulb temperature do not meet the condition set, if indoor temperature or humidity are greater than while setting higher limit, the work of mechanical refrigeration circulation loop, water circulating pump in the off-premises station cistern is opened, and after 30 seconds, compressor is opened, and outdoor fan is according to pressure signal and speed change starts operation.If now indoor temperature and humidity all are greater than and set higher limit, the magnetic valve V is opened automatically, and indoor fan is done variable-speed operation according to the variation of indoor humidity.Set higher limit if now only have indoor temperature to be greater than, the magnetic valve V is closed automatically, and indoor fan is also out of service.When indoor temperature, lower than the lower limit set and indoor humidity during lower than the higher limit that sets, the mechanical refrigeration circulation loop quits work, and water circulating pump is out of service, and after 30 seconds, compressor cuts out, and outdoor fan is out of service, and indoor fan is also out of service.If now indoor humidity is less than while setting lower limit, indoor fan is made variable-speed operation, and the humidification water circulating pump is opened, and to indoor, is added wet process, and when indoor humidity is greater than while setting higher limit, indoor fan is out of service.So circulation.
The various piece composition is specifically described as follows as shown in the figure:
(1) composition of mechanical refrigeration circulatory system part:
Compressor 1, high pressure sensor 2, check valve
3, the compositions such as pressure sensor 4, condenser 6, 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, separating tube 31, dehumidifying evaporimeter 32, magnetic valve V 65, rack evaporation coil 67, magnetic valve 38, gas-liquid separator 39, low pressure sensor 40, balance 42 pipes and connecting copper pipe pipeline.Magnetic valve
65, separating tube 31 and 32, dehumidifying evaporimeter are used as dehumidifying.
The cold-producing medium that auxiliary branch cold-producing medium fluid reservoir 21 is unnecessary for savings system, have sufficient cold-producing medium while guaranteeing system works; Device for drying and filtering 27 is for cold-producing medium is carried out to 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.; Separating tube 31, dehumidifying evaporimeter 32 and magnetic valve V 65 are in order to guarantee that indoor humidity is maintained within a certain range, and room air is carried out to dehumidification treatments and design.In order to prevent non-when the wet condition, the cold-producing medium dehumidifying evaporimeter of flowing through needed to install additional a magnetic valve V 65 before entering separating tube.Selecting gas-liquid separator 39 is that gaseous refrigerant is sent into compressor 1 and formed circulation to from rack evaporation coil or dehumidifying evaporimeter cold-producing medium out, carrying out gas-liquid separation, and liquid refrigerant retains in 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, and when detecting refrigeration system exhaust pressure when setting threshold value, protection overload of compressor, pressure overheated and pipeline such as guarantee in certain scope at the design.
(2) composition of freezing by change of state circulatory system part:
Outdoor condenser 6(and the mechanical refrigeration circulatory system share a condenser), magnetic valve V 65, separating tube 31, dehumidifying evaporimeter 32(and the shared dehumidifying evaporimeter of the mechanical refrigeration circulatory system), the compositions such as rack evaporation coil 67, manual ball valve 26, device for drying and filtering 27, liquid-sighting glass 28, pressure sensor 33, magnetic valve II 34, magnetic valve III 36, check valve 35, cold-producing medium fluid reservoir 21 and connecting line.Magnetic valve
65, separating tube 31 and 32, dehumidifying evaporimeter are used as dehumidifying.If be subject to the restriction of mounting condition, when the off-premises station setting height(from bottom) is lower than indoor set setting height(from bottom), and the outdoor extension cabinet designed separately.Cold-producing medium fluid reservoir, magnetic valve I are arranged, the magnetic force of anti-fluorine liquid pump, the assemblies such as check valve II in outdoor extension cabinet.When preventing freezing by change of state, cold-producing medium, by the pipeline backflow between alternative outdoor extension cabinet and manual ball valve 26, causes the refrigerant flow direction short circuit, the circuit design between outdoor extension cabinet refrigerant inlet and manual ball valve 26 check valve I 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 the dehumidifying evaporimeter, designed magnetic valve II 34 between dehumidifying evaporimeter isocon 31 and liquid-sighting glass 28, when mechanical refrigeration, magnetic valve II 34 is in closed condition, reflux by heating power expansion valve 29 when preventing freezing by change of state simultaneously, between dehumidifying evaporimeter isocon 31 and heating power expansion valve 29, designed check valve 30.When preventing freezing by change of state, cold-producing medium flows in gas-liquid separator 39, while having designed magnetic valve IV 38(freezing by change of state between evaporation coil 67 and gas-liquid separator 39, closes; During mechanical refrigeration, open).Designed check valve V 3 between compressor 1 exhaust outlet and condenser refrigerant inlet refrigeration pipe, while preventing freezing by change of state, cold-producing medium flows in compressor 1.Check valve
35 with magnetic valve III 36 be when preventing mechanical refrigeration, the anti-gas-liquid separator 39 that flows back to of cold-producing medium, cause the refrigerant flow direction can be disorderly.Pressure sensor 33 is to enter the signal of the pressure of evaporation coil 67 cold-producing mediums in order to detect (during freezing by change of state), thereby makes variable-speed operation by the magnetic force of anti-fluorine liquid pump 23 in extension cabinet part outside the intelligent controller control room, makes 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 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 entrance 59, screen pack 60, condensate pipe is 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 water circulating 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.
The cooling Tower System of off-premises station forms: above spray assembly 5, lower spray assembly 7, off-premises station air inlet 8, outdoor fan 43.In 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, water circulating 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 water tank becomes normally open by normally off and the ball float 52 of cutting off the water during for normally off, open into water electrical ball valve 45 and electrical ball valve or self-priming water pump 15 and open or open, 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 and electrical ball valve or self-priming water pump 15 are closed.
Water inlet ball float 11 in cistern 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 by intelligent controller order water inlet electrical ball valve 18 and 19, is closed.
Machinery ball float 66 causes the cistern spilling water and designs in order to prevent electrical ball valve to be not closed completely.Sluicing electrical ball valve 13 is in order to prevent that cistern from freezing and automatic drainage in periodic cleaning cistern, winter.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 in the anhydrous situation of cistern and alarm prompt.Spilling water alarm ball float 9 is in order to prevent that mechanical ball float 66 and water inlet electrical ball valve 19 and 18 are all in bad situation, pipeline be not closed completely leak to cistern, cause waste water and design and alarm prompt.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 and realize emptyingly by intelligent controller order electrical ball valve 17 and electrical ball valve 19, require electrical ball valve 17 to be arranged on the minimum point of whole supply channel simultaneously.
Sluicing magnetic valve 49 is for periodic cleaning water tank automatic drainage.Low water level alarm ball float 50 is to have designed in order to protect water circulating pump, in case water circulating pump moves in the anhydrous situation of cistern and alarm prompt.Sluicing magnetic valve 49 is for periodic cleaning water tank automatic drainage.Low water level alarm ball float 50 is to have designed in order to protect water circulating pump, in case water circulating pump moves in the anhydrous situation of cistern and alarm prompt.Spilling water alarm ball float 54 is in order to prevent into water electrical ball valve 45 or 46 all in bad situation, pipeline be not closed completely leak to water tank, cause 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 stop up the alarm sensor parts such as alarm, the alarm of indoor and outdoor water pump, the alarm of the magnetic force of anti-fluorine liquid pump, overload of compressor alarm, the water damage alarm that leaks, the alarm of air-flow loss.
(4), other function declarations:
(but this parameter people is for being arranged to be greater than 0-3 ℃ at outdoor dry-bulb temperature, also can in program, write a fixed value, as 1 ℃) between certain when setting value, what indoor humidification adopted is the wet-film humidifying technology, what use is the water of low enthalpy in outdoor cooling tower, by the humidification cascade, room air is carried out to humidification, dedusting, cooling processing; When outdoor dry-bulb temperature is less than between 0-3 ℃ (but this parameter people also can be write fixed value, as 0.5 ℃ for arranging in program) certain setting value, indoor what add that wet process adopts is the water in indoor feed pipe.
When outdoor dry-bulb temperature is greater than 0-3 ℃, (but this parameter people is for being arranged, also can in program, write a fixed value, as 1 ℃) between certain setting value, if indoor temperature or humidity are greater than while setting higher limit, no matter be freezing by change of state or mechanical refrigeration, cold-producing medium in condenser coil is that energy exchange is carried out in evaporation by the water (water temperature approaches its outdoor air wet bulb temperature at that time) in cooling tower, and efficiency provides greatly.When outdoor dry-bulb temperature is less than 0 ℃, cold-producing medium in condenser coil is to make intermittent shower (because the moisture film in condenser coil easily freezed in this temperature stage by the water in cooling tower, in order to prevent that the condenser coil fin from freezing, and does intermittent shower) evaporation carries out energy exchange.When between be less than-5-0 of outdoor dry-bulb temperature ℃ (but this parameter people also can be write fixed value, as-2 ℃ for arranging in program) during certain setting value, the cold-producing medium in condenser coil carries out energy exchange by outdoor cold dry air.
Even it is satisfied or not the value of setting or condition at indoor-outdoor air enthalpy difference value or outdoor air wet bulb temperature, if the freezing by change of state circulatory system is after operation a period of time, when indoor temperature is greater than when setting between general (1-5) ℃ (but this parameter people is for being arranged) of higher limit+Δ T(certain setting value or indoor humidity and the high humidity alarm occurring, this Intelligent fixed point refrigerated energy-saving air-conditioning system transfers the mechanical refrigeration circulatory system automatically to.If, now without the high humidity alarm, the magnetic valve V is closed, indoor fan is out of service, only to the indoor processing of lowering the temperature.If now indoor temperature is greater than and sets certain setting value between general (1-5) ℃ (but this Δ T people is for being arranged) of higher limit+Δ T(Δ T) and indoor humidity the high humidity alarm appears, the magnetic valve V is opened automatically, the indoor fan variable-speed operation, lowered the temperature and dehumidification treatments to indoor environment.
Temperature, the humidity of enthalpy difference by the indoor and outdoor air of freezing by change of state and mechanically refrigerated conversion or outdoor air wet bulb temperature and room air changes to control and realizes.Mutually change and have time delay to control between the freezing by change of state circulatory system and the mechanical refrigeration circulatory system, from the freezing by change of state circulatory system, being converted to the mechanical refrigeration circulatory system has time delay each other, is generally 30-180 second (but the people is for being arranged).
During freezing by change of state, the magnetic force of anti-fluorine liquid pump in extension cabinet is realized variable-speed operation by pressure sensor, the evaporating pressure that guarantees refrigeration system in certain scope to the timely supply of cold-producing medium in the rack evaporation coil.When mechanical refrigeration; if overload alarm or the alarm of compressor high voltage protective appear in compressor, indoor temperature is greater than while setting the high temperature warning value; this Intelligent fixed point refrigerated energy-saving air-conditioning system unconditionally starts the freezing by change of state circulatory system, ensures the rising that indoor temperature can be not unlimited.
The cooling tower of off-premises station carries out energy exchange by the energy of outdoor low enthalpy air through circulation line and indoor high enthalpy value air, by the magnetic force of anti-fluorine liquid pump in extension cabinet or by refrigerants vaporize or compressor by the gaseous refrigerant of high enthalpy, after the air of sending into outdoor cooling tower and outdoor low enthalpy carries out energy exchange, the high enthalpy gaseous refrigerant of high temperature is become to the liquid refrigerant of the low enthalpy of low temperature, enter the indoor machine cabinet evaporation coil by the magnetic force of anti-fluorine liquid pump in extension cabinet or cold-producing medium deadweight or compressor and carry out energy exchange.Above process circular flow.
Claims (7)
1. an Intelligent fixed point refrigerated energy-saving air-conditioning system, be provided with indoor set and off-premises station, off-premises station comprises condenser and outdoor fan, it is characterized in that: indoor set comprises rack evaporation coil, dehumidifying evaporimeter, indoor fan and compressor, comprise mechanical refrigeration circulation loop and freezing by change of state circulation loop, the loop be comprised of compressor, condenser, check valve I, heating power expansion valve, check valve III, rack evaporation coil, magnetic valve IV, gas-liquid separator and the pipeline that connects successively forms the mechanical refrigeration circulation loop; The be provided with branch road II that by magnetic valve II formed in parallel with heating power expansion valve and check valve III, be provided with gas-liquid separator and compressor parallel the branch road III be comprised of magnetic valve III and check valve IV, the loop be comprised of condenser, check valve I, branch road II, rack evaporation coil, branch road III and the pipeline that connects successively forms the freezing by change of state circulation loop; Form the dehumidifying bypass by magnetic valve V, separating tube, dehumidifying evaporimeter, the dehumidifying bypass is connected between check valve III and rack evaporation coil.
2. Intelligent fixed point refrigerated energy-saving air-conditioning system according to claim 1, it is characterized in that: freezing by change of state circulation auxiliary branch while being provided with off-premises station lower than indoor set in parallel with the check valve I, above-mentioned freezing by change of state circulation auxiliary branch comprises that magnetic valve I, cold-producing medium fluid reservoir, the magnetic force of anti-fluorine liquid pump, check valve II form.
3. Intelligent fixed point refrigerated energy-saving air-conditioning system according to claim 1, it is characterized in that: in the bottom of indoor set, be provided with the humidification cyclic water tank, the air inlet place of indoor set is provided with the humidification cascade, be provided with the humidification water circulating pump in the humidification cyclic water tank, the outlet pipe of humidification water circulating pump and humidification water tank cascade join, the bottom of off-premises station is provided with cistern, spray assembly being provided with above condenser, be provided with lower spray assembly below condenser, be provided with the water pump joined with upper spray assembly and lower spray assembly in cistern, the bottom of cistern joins by the water inlet pipe of the humidification cyclic water tank of conduit and magnetic valve IV and indoor set.
4. Intelligent fixed point refrigerated energy-saving air-conditioning system according to claim 3, it is characterized in that: described cistern is equipped with self-priming water pump or electrical ball valve and water filter to the conduit between the humidification cyclic water tank.
5. Intelligent fixed point refrigerated energy-saving air-conditioning system according to claim 3 is characterized in that: in indoor set the dehumidifying evaporimeter below be provided with drip tray, drip tray communicates with the humidification cyclic water tank by connecting water pipe.
6. Intelligent fixed point refrigerated energy-saving air-conditioning system according to claim 1, it is characterized in that: described rack evaporation coil consists of the parallel connection of some coil pipe groups, and each coil pipe group is arranged in the panel inboard of indoor heat-producing device.
7. Intelligent fixed point refrigerated energy-saving air-conditioning system according to claim 6 is characterized in that: at least be furnished with two cover coil pipe groups in the panel inboard of indoor heat-producing device, every cover coil pipe group all with separately independently cooling cycle system join.
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| CN 201220407654 CN202709319U (en) | 2012-08-17 | 2012-08-17 | Energy-saving air conditioning system with intelligent targeted refrigeration function |
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| Application Number | Priority Date | Filing Date | Title |
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| CN 201220407654 CN202709319U (en) | 2012-08-17 | 2012-08-17 | Energy-saving air conditioning system with intelligent targeted refrigeration function |
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| CN202709319U true CN202709319U (en) | 2013-01-30 |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107091503A (en) * | 2017-05-12 | 2017-08-25 | 深圳市得辉达智能科技有限公司 | Outer machine and air-conditioning system |
| CN107806675A (en) * | 2016-09-06 | 2018-03-16 | 深圳市昊昱环保科技有限公司 | A kind of air-cooled dehumidification system of four seasons type and its control method |
| CN108759186A (en) * | 2018-04-13 | 2018-11-06 | 宁波得晴电器科技有限公司 | Refrigerant distributing device |
| CN109631410A (en) * | 2019-01-25 | 2019-04-16 | 中国建筑科学研究院有限公司 | Combined type refrigerating system |
| CN111765598A (en) * | 2020-07-09 | 2020-10-13 | 广东海悟科技有限公司 | Evaporative cooling air conditioner and control method of cooling medium driving pump body thereof |
| CN114484613A (en) * | 2022-01-04 | 2022-05-13 | 珠海格力电器股份有限公司 | Heat pump air conditioner and control method thereof |
| CN115121094A (en) * | 2022-06-28 | 2022-09-30 | 北京京仪大气环保科技有限公司 | Intelligent gas dehumidifier |
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2012
- 2012-08-17 CN CN 201220407654 patent/CN202709319U/en not_active Expired - Fee Related
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107806675A (en) * | 2016-09-06 | 2018-03-16 | 深圳市昊昱环保科技有限公司 | A kind of air-cooled dehumidification system of four seasons type and its control method |
| CN107091503A (en) * | 2017-05-12 | 2017-08-25 | 深圳市得辉达智能科技有限公司 | Outer machine and air-conditioning system |
| CN108759186A (en) * | 2018-04-13 | 2018-11-06 | 宁波得晴电器科技有限公司 | Refrigerant distributing device |
| CN109631410A (en) * | 2019-01-25 | 2019-04-16 | 中国建筑科学研究院有限公司 | Combined type refrigerating system |
| CN111765598A (en) * | 2020-07-09 | 2020-10-13 | 广东海悟科技有限公司 | Evaporative cooling air conditioner and control method of cooling medium driving pump body thereof |
| CN111765598B (en) * | 2020-07-09 | 2021-09-17 | 广东海悟科技有限公司 | Evaporative cooling air conditioner and control method of cooling medium driving pump body thereof |
| CN114484613A (en) * | 2022-01-04 | 2022-05-13 | 珠海格力电器股份有限公司 | Heat pump air conditioner and control method thereof |
| CN114484613B (en) * | 2022-01-04 | 2023-07-25 | 珠海格力电器股份有限公司 | Heat pump air conditioner and control method thereof |
| CN115121094A (en) * | 2022-06-28 | 2022-09-30 | 北京京仪大气环保科技有限公司 | Intelligent gas dehumidifier |
| CN115121094B (en) * | 2022-06-28 | 2024-05-31 | 北京京仪大气环保科技有限公司 | Intelligent gas dehumidifier |
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