CN103062846B - Outdoor air conditioning unit, integrated air conditioning control system and starting method thereof - Google Patents
Outdoor air conditioning unit, integrated air conditioning control system and starting method thereof Download PDFInfo
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- CN103062846B CN103062846B CN201310010249.6A CN201310010249A CN103062846B CN 103062846 B CN103062846 B CN 103062846B CN 201310010249 A CN201310010249 A CN 201310010249A CN 103062846 B CN103062846 B CN 103062846B
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Abstract
The invention discloses an air conditioning system including an outdoor air conditioning unit, an integrated air conditioning control system and a starting method thereof which can be flexibly matched in utilization. The integrated air conditioning control system comprises at least two groups of parallelly connected ports for connecting outdoor air conditioning units and at least two groups of parallelly connected ports for connecting indoor air conditioning units, auxiliary ports are added on the outdoor air conditioning units, the outdoor units and the indoor units are connected via the ports, the auxiliary ports and pipelines to form a coolant circulating pipeline, a coolant distributor provided with a liquid reservoir, an oil separator and a valve is arranged in the coolant circulating pipeline, an integrated controller is utilized to control and adjust distribution of the outdoor units, the indoor units and the coolant distributor and to control flowing direction of refrigerating and heating coolant, and accordingly the outdoor units and the indoor units can be optionally combined by a user conveniently. The integrated air conditioning control system can be an independent product, can also be manufactured into a household air conditioning platform with a large expand space, and can be widely used in improvement of existing household air conditioners and manufacturing of new products.
Description
Technical field
The present invention relates to air-conditioning products, air-conditioner outdoor unit, particularly a kind of air-conditioner outdoor unit and integrated control system thereof and starting method.
Background technology
Air-conditioning, as a kind of matured product, becomes a part for people's life already, meets people to the needs freezed or heat, improves the comfortableness of people's life.But, existing domestic air conditioning is because needing complete purchase, therefore the cost of disposable input is higher.
The air-conditioning of the complete sale of existing family expenses is made up of indoor set, off-premises station and connecting line etc., producer has designed specification before dispatching from the factory, do not allow used in combination, the indoor set as the off-premises station of 1 and 1 supports the use, and can not support the use with the indoor set of 1 and the off-premises station of 3.Independently space can as required and the size in space, configure different existing air-conditioning equipments, such as in bedroom, parlor, dining room can configure independently dissimilar a set of air-conditioning, namely according to the size of the area of refrigeration, buys the air-conditioning equipment of the rated power of different size.
In addition, when environment temperature is higher, consumer wishes can fast-refrigerating, and existing domestic air conditioning but seems due to the restriction of rated power scarce capacity, but air-conditioning operation now still needs to expend more electric energy; When the temperature of the surroundings is low, consumer wishes to heat fast, the scarce capacity and existing domestic air conditioning still seems due to the restriction of rated power, can the operation of air-conditioning but still need to expend more electric energy.Especially work as the dead of night, when the people in parlor enter the rooms such as the bedroom of oneself, study, the air-conditioning that parlor is put also starts normal rest, because not needing to allow it enter duty, otherwise has both wasted the energy, can not arrive due effect.Now, if allow the air-conditioning in parlor play due usefulness, and can being freezed and the ability that heats is transported to bedroom, wouldn't be the waste solving the idle of resource and cause, meeting again the needs of bedroom consumer, can existing domestic air conditioning be do not have this function.
In prior art, although there is dissimilar central air-conditioning, as Large Central Air Conditioning System and small-sized VRV (Varied Refrigerant Volume) central air-conditioning, they are also by arranging off-premises station and the indoor set of varying number, meet the needs having separate space refrigeration and heat.But the capacity of its off-premises station is larger, easily just have tens P, and normal operation generally needs 3 phase power supplys, because its cost is too high, ordinary consumer cannot use at all, and it is mainly used in the large contingents such as large-scale market, hotel, supermarket or heats or the king-sized place of refrigerating capacity demand.In addition, existing VRV technology, although also solve the supporting use of the varying number of many off-premises stations and many indoor sets, but its cost is high, and its capacity is larger, generally have the ability of more than 10P, need 3 phase power supplys during work equally, ordinary consumer (the 220V power supply based on two-phase) makes not use at all.Even if there is the VRV equipment of low capacity, generally only need an off-premises station just passable, it neither product required for ordinary consumer.These central air-conditioning are disposable inputs, after installation is complete, because of the cause by the restriction of its inherent technology, the combination of its indoor set and off-premises station just secures, the combination of indoor set and off-premises station just can not arbitrarily change, even if when the separate space of actual needs increases, it cannot be appended in system by an independent purchase indoor set and use.These central air conditioner systems i.e., once installation, it is not just by again increasing indoor set or off-premises station, and expand its usage space or increase its ability to work, that is: existing central air-conditioning does not inherently have the function of any combination, after air-conditioning equipment installation, just not there is the function of any combination.
Existing domestic air conditioning and existing central air-conditioning have many differences, the capacity of domestic air conditioning is general less, use single phase poaer supply, complete sale, market also has 1 to drag 2 or 1 to drag 3 etc. 1 to drag many air conditioners, use the air-conditioning system that the off-premises station that is made up of a compressor and multiple indoor set form, but the combination of its off-premises station and indoor set is fixing, also be complete sale, but they still can not according to the needs of user, this one drags many air-conditionings can not add arbitrarily indoor set or off-premises station, not there is the function that use in parallel with other off-premises stations equally.Once this one drags many off-premises stations to damage, whole air-conditioning can not use.
Patent No. CN200620147905.2, name are called the utility model patent description of " refrigerator water-heating air conditioner integrated machine ", disclose a kind of refrigerator water-heating air conditioner integrated machine, combined formed by box system, electric-control system, heat-exchange system, be divided into indoor set, off-premises station two large divisions.Wherein, heat-exchange system comprises compressor, reservoir, automatically controlled combination valve, outdoor heat converter, heat exchanger of water heater, heat exchanger of air condition, heat exchanger for refrigerator, solar water heater, circulating pump.This all-in-one only needs a compressor, eliminates freezer compressor and the indoor condenser of refrigerator, reduces room noise.This machine, by refrigerator, water heater, air-conditioner being integrated, reaches energy-conservation and cost-saving and object that is price.But this all-in-one remains a kind of complete autonomous system, when environmental change or user's request change, this all-in-one still can not carry out combination to play its efficiency with other air-conditioning systems.
Patent No. CN94190081.9, name are called the utility model patent description of " chilling unit ", disclose a kind of refrigeration plant, liquid line and gas line are connected respectively to main liquid line and main gas line, obtain to make main outdoor unit and subordinate outdoor unit the setting be connected in parallel to each other.On the gas line extended from subordinate outdoor unit, be provided with a gas throttling valve be fully closed when subordinate outdoor unit is stopped operation during heating operation.On the liquid line extended from subordinate outdoor unit, be provided with a liquid choke valve of being closed completely when being stopped operation from subordinate outdoor unit during cooling down operation and heating operation.Like this, the compression of liquid refrigerant and the deficiency of refrigerant circulation quantity is prevented.But this chilling unit remains a kind of complete autonomous system, when environmental change or user's request change, this all-in-one still can not carry out combination to play its efficiency with other air-conditioning systems.
In addition, existing domestic air conditioning due to capacity relative less, for ensureing its compact conformation, its overall design size space is relatively little, therefore the compressor of its corresponding configuration is also relatively little, such compressor can not store more lubricating oil, when using such compressor to carry out parallel running, there will be a series of problem, namely the Compressor Technology of existing low capacity and air-conditioning technical can not solve the problem of domestic air conditioning parallel running, when compressor parallel because of family expenses low capacity runs, due to pressure divergence, the compressor oil starvation that the existing compressor not arranging oil-balancing system can cause pressure high and damaging, therefore can not it be made normally to run by parallel connection existing domestic air conditioning simply.
The present invention, for solving the problem and producing, both solves resources idle and the waste caused, meets again the reality need of ordinary consumer; Meanwhile, also can save disposable input cost, follow-up all right arbitrarily additional investment.
Summary of the invention
Technical problem to be solved by this invention is to provide a kind ofly carries out air-conditioner outdoor unit supporting flexibly and air-conditioning integrated control system thereof and starting method.
The technical solution adopted for the present invention to solve the technical problems is: air-conditioner outdoor unit, comprise the off-premises station that compressor, cross valve and outdoor heat converter are formed, wherein two passages one end of communication chamber external heat exchanger and interface of off-premises station respectively of cross valve, the other end of outdoor heat exchanger is communicated with another interface of off-premises station, it is characterized in that: the connecting pipe between outdoor heat exchanger and cross valve is provided with magnetic valve, the two ends of magnetic valve are communicated with off-premises station satellite interface respectively.
For the air-conditioning integrated control system of above-mentioned air-conditioner outdoor unit, comprise at least two groups of at least two in parallel groups for the interface that connects off-premises station and satellite interface and parallel connection for being connected the interface of indoor unit, pass through interface, off-premises station and indoor unit are connected to form medium circulation pipeline by satellite interface and pipeline, it is characterized in that: comprise Centralized Controller and be arranged on the coolant distributor on refrigerant loop, coolant distributor comprises reservoir, oil eliminator and valve, the bottom of oil eliminator is provided with oil-piping and is connected with reservoir, oil-piping is provided with valve, wherein:
Described coolant distributor is for distributing and control the flow direction and the flow of refrigerant and oil; Wherein, reservoir for separating of with storage refrigerant and oil, oil eliminator is for separating of refrigerant and oil;
Described Centralized Controller is used for controlling indoor unit, off-premises station and coolant distributor and distributing adjustment;
When heating, the flow direction of refrigerant is: the interface of the interface-oil eliminator-triple valve-indoor unit-off-premises station of off-premises station;
During refrigeration, the flow direction of refrigerant is: the interface of the interface-indoor unit-reservoir-off-premises station of the satellite interface-outdoor heat converter-off-premises station of the satellite interface-oil eliminator-triple valve-off-premises station of off-premises station.
Above-mentioned triple valve mainly starts to control the effect of the commutation flowing of refrigeration matchmaker, by Centralized Controller indoor unit, off-premises station and coolant distributor controlled and distribute adjustment, refrigerant in medium circulation pipeline and oil are reasonably distributed, and unnecessary refrigerant and oil are stored in reservoir.When the compressor in medium circulation pipeline or in off-premises station lacks refrigerant or oil, Centralized Controller is by adjusting its coolant adding or oil in good time.Simultaneously, no matter heat circulation or kind of refrigeration cycle, refrigerant all by Centralized Controller under the control of valve, first after oil eliminator is separated refrigerant and oil, enter the heat exchanger of outdoor unit or the heat exchanger of indoor unit again, make the oil in pipeline obtain Collection and use timely, also make to enter oil content in the refrigerant of heat exchanger lower simultaneously, thus improve heat exchanger effectiveness.
As the further improvement to technique scheme, the bottom position of oil eliminator is higher than the top of reservoir.
As the further improvement to technique scheme, be provided with two fuel level sensors laying respectively at high and low position in oil eliminator, for detecting the height of oil level; Centralized Controller, according to the testing result of fuel level sensor, determines whether input oil in medium circulation pipeline.
As the further improvement to technique scheme, be provided with two liquid level sensors laying respectively at high and low position in reservoir, for detecting the height of oil level or refrigerant liquid level; Centralized Controller, according to the testing result of liquid level sensor, determines whether input oil or refrigerant in medium circulation pipeline.
As the further improvement to technique scheme, described oil pipe is provided with two capillaries, each capillary is provided with temperature sensor, Centralized Controller is according to the variations in temperature of temperature sensor measurement, what judge flow in capillary tube is oil or refrigerant, thus the state of valve on control oil pipe.
For technique scheme, indoor unit is any combination of one or more in indoor apparatus of air conditioner, refrigerator, refrigerator-freezer, water heater.
The invention has the beneficial effects as follows: the present invention is by arranging the coolant distributor comprising reservoir, oil eliminator and valve in medium circulation pipeline, off-premises station adds satellite interface, and by Centralized Controller indoor unit, off-premises station and coolant distributor controlled and distribute adjustment, control the refrigerant flow direction freezing and heat circulation simultaneously, thus make user's independent assortment indoor set and off-premises station become possibility.
The present invention is further designing and developing of carrying out existing air conditioner, and the appearance of the integrated control system of this domestic air conditioner changes existing air-conditioning marketing model and the mode of production up hill and dale, and having broken domestic air conditioning must the limitation of complete sale and production.Even if in the immovable situation of compressor arrangement, the parallel connection of existing domestic air conditioning also can be made to use.
The integrated control system of domestic air conditioner of the present invention have employed a kind of technological means unlike the prior art, change the present situation of the complete sale of existing air-conditioning, consumer can according to oneself reality need, oneself actual purchase ability and the conception of oneself or design, buy different off-premises stations and indoor set type or number of units, fit together after going home and just can meet instructions for use.Meanwhile, consumer also according to additional demand afterwards, can buy different off-premises stations or indoor set again, after going home, again fits together and just can meet instructions for use.If have multiple stage off-premises station, when a certain off-premises station wherein breaks down, by the measure being carried out isolating by the off-premises station of this fault, this faulty equipment temporarily isolates by the technical measures namely turning off its air inlet and air outlet passage, allows other trouble-free off-premises station normally to run; Certainly, other trouble-free off-premises stations also can not run, and after the fault of the off-premises station broken down in system solves, then start to run well.
Air-conditioner outdoor unit of the present invention and integrated control system thereof revolutionize now air-conditioned control method, cashing has the decentralised control of indoor apparatus of air conditioner and off-premises station to be centralized Control, user can select existing indoor set to be connected easily with integrated control system of the present invention with off-premises station of the present invention, both solve resources idle and the waste caused, meet again the reality need of ordinary consumer; The later stage of consumer drops into, and can only buy indoor unit or outdoor unit, i.e. follow-up all right arbitrarily additional investment.Air-conditioner outdoor unit of the present invention and integrated control system thereof, not only expand consumer's selectable free degree when buying air-conditioning, and consumer has had oneself to select and the experience of assembling, the thinking set that the whole series also having broken conventional domestic air-conditioning are sold, has expanded the range of application of domestic air conditioning widely.This air-conditioner outdoor unit of the present invention and integrated control system thereof, off-premises station and integrated control system can be all a kind of independent products, sell separately, with the use of, independent assortment indoor set and off-premises station, also can manufacture the domestic air conditioning platform having and expand space more greatly, transformation and the new product manufacture of existing domestic air conditioning can be widely used in, be with a wide range of applications.
Accompanying drawing explanation
Fig. 1 is the structural principle block diagram of air-conditioner outdoor unit of the present invention and air-conditioning integrated control system thereof;
Fig. 2 is the startup controlling party block diagram of air-conditioner outdoor unit of the present invention and air-conditioning integrated control system thereof;
Fig. 3 is the pipeline catenation principle figure of air-conditioner outdoor unit of the present invention and air-conditioning integrated control system thereof.
Detailed description of the invention
Below in conjunction with accompanying drawing, the present invention is further described.
As shown in FIG. 1 to 3, air-conditioner outdoor unit of the present invention, comprise the off-premises station 51,52 that compressor, cross valve and outdoor heat converter are formed, wherein two passages one end of communication chamber external heat exchanger and interface of off-premises station respectively of cross valve, the other end of outdoor heat exchanger is communicated with another interface of off-premises station, connecting pipe between outdoor heat exchanger and cross valve is provided with magnetic valve, and the two ends of magnetic valve are communicated with off-premises station satellite interface respectively.
For the air-conditioning integrated control system of above-mentioned air-conditioner outdoor unit, comprising at least two groups of at least two in parallel groups for the interface that connects off-premises station 51,52 and satellite interface and parallel connection for being connected the interface of indoor unit 41,42, by interface and pipeline, off-premises station and indoor unit being connected to form medium circulation pipeline.Interface and satellite interface are undertaken turning off by manually-operated gate, plug, magnetic valve etc. or open-minded, are beneficial to the increase and decrease that user carries out off-premises station 51,52 and indoor unit 41,42 as required and connect and come into operation.This integrated control system also comprises Centralized Controller and is arranged on the coolant distributor on refrigerant loop, coolant distributor comprises reservoir 13, oil eliminator 14 and valve, make the oil be separated in its oil eliminator 14, control it to flow into when needs in medium circulation pipeline, such as, adopt the mode etc. of pumping.The bottom of oil eliminator 14 is provided with oil-piping and is connected with reservoir 13, and oil-piping is provided with valve, wherein:
The effect of above-mentioned coolant distributor is the flow direction and flow for distributing and control refrigerant and oil; Wherein, reservoir 13 for separating of with storage refrigerant and oil, oil eliminator 14 is for separating of refrigerant and oil;
Above-mentioned Centralized Controller is used for controlling indoor unit 41,42 and off-premises station 51,52 and coolant distributor and distributing adjustment, by distributing the reasonable distribution and use that regulate and realize refrigerant and oil.Centralized Controller is to refrigerant in coolant distributor and oily control and distribution, can by detecting the air inlet of compressor, the mode of pressure at expulsion, judge whether to lack refrigerant or oil, also can according to indoor unit 41,42, off-premises station 51,52 number of units of opening, carry out comprehensive descision the need of to coolant adding in medium circulation pipeline or to compressor makeup oil in conjunction with the height of liquid level in reservoir 13, oil eliminator 14, other mode can also be adopted to carry out judging and controlling.Whether lacking refrigerant or the whether detection of oil starvation and judgement, is the common practise of this area.
The integrated control system of above-mentioned domestic air conditioner operationally, the effect of collecting and storing unnecessary refrigerant and oil is reached by controlling its refrigerant flow direction, also can coolant adding or oil in time when lacking refrigerant or compressor oil starvation in medium circulation pipeline, thus its each indoor unit 41,42 and off-premises station 51,52 are normally worked, give full play to its usefulness.Its refrigerant flow direction is as follows:
When heating, the flow direction of refrigerant is: the interface-oil eliminator 14-triple valve-indoor unit 41 of off-premises station 51,52, the interface of 42-off-premises station 51,52;
During refrigeration, the flow direction of refrigerant is: the interface-indoor unit 41 of the satellite interface-outdoor heat converter-off-premises station of the satellite interface-oil eliminator 14-triple valve-off-premises station of off-premises station 51,52, the interface of 42-reservoir 13-off-premises station 51,52.
Above-mentioned triple valve mainly starts to control the effect of the commutation flowing of refrigeration matchmaker, by Centralized Controller, indoor unit 41,42 and off-premises station 51,52 and coolant distributor are controlled and distribute adjustment, refrigerant in medium circulation pipeline and oil are reasonably distributed, and unnecessary refrigerant and oil are stored in reservoir 13.When the compressor in medium circulation pipeline or in off-premises station 51,52 lacks refrigerant or oil, Centralized Controller is by adjusting its coolant adding or oil in good time.Simultaneously, no matter heat circulation or kind of refrigeration cycle, refrigerant all by Centralized Controller under the control of valve, first after oil eliminator 14 is separated refrigerant and oil, enter the heat exchanger of outdoor unit 51,52 or the heat exchanger of indoor unit 41,42 again, make the oil in pipeline obtain Collection and use timely, also make to enter oil content in the refrigerant of heat exchanger lower simultaneously, thus improve heat exchanger effectiveness.
Above-mentioned valve is arranged according to the needs of function, as long as meet above function.Valve can adopt check valve, magnetic valve and electric expansion valve, or the combination of above-mentioned three, selecting and combination of its valve, and can arrange based on needs and cost consideration, these are all the common practise of this area.
In technique scheme, the bottom position of oil eliminator 14, higher than the top of reservoir 13, makes the oil be separated in its oil eliminator 14, controls it and the effect of gravity can be relied on when needing to flow in medium circulation pipeline.
In order to provide the using state of refrigerant or oil more accurately, foundation is provided for Centralized Controller carries out control to refrigerant with oily flow and the flow direction, two fuel level sensors laying respectively at high and low position are provided with, for detecting the height of oil level in oil eliminator 14; Centralized Controller, according to the testing result of fuel level sensor, determines whether input oil in medium circulation pipeline.
Same reason, in order to provide the using state of refrigerant or oil more accurately, is provided with two liquid level sensors laying respectively at high and low position, for detecting the height of oil level or refrigerant liquid level in reservoir 13; Centralized Controller, according to the testing result of liquid level sensor, determines whether input oil or refrigerant in medium circulation pipeline.
In technique scheme, Centralized Controller, according to the height of the oil level of the detection of liquid level sensor in reservoir 13 or refrigerant liquid level, determines whether transferring oil or refrigerant in oil eliminator 14.When the oil level detected in reservoir 13 or liquid level (refrigerant storage capacity) higher time, Centralized Controller control corresponding magnetic valve open or close, to oil eliminator 14 transferring oil or refrigerant.
In technique scheme, above-mentioned oil pipe is provided with two capillaries, each capillary is provided with temperature sensor, the temperature of the capillary that Centralized Controller detects according to temperature sensor and variations in temperature thereof, what judge flow in capillary tube is oil or refrigerant, thus on control oil pipe, valve needs to turn off or open.
In technique scheme, indoor unit 41,42 can be indoor apparatus of air conditioner, and can be also refrigerator, refrigerator-freezer, water heater etc., also can be any combination of one or more in above-mentioned indoor unit.
In technique scheme, the effect of triple valve is commutation, and the interface of indoor unit 41,42 is provided with valve.
The valve that the interface of indoor unit 41,42 is arranged can adopt electric expansion valve or magnetic valve.
For Fig. 3,10 is casing, integrated control system can be placed on wherein as independent product.
Indoor unit 41,42......, quantity can arrive N, and this indoor unit does not need to change.
Off-premises station 51,52......, quantity can arrive N, has only carried out little change, and namely this outdoor unit adds two pipelines and a magnetic valve that are connected to satellite interface than existing common air-conditioning, as DC1 and DC2; Interface and the satellite interface of described increase are connected respectively to GC12, GC13, GC22, GC23, and namely this each off-premises station is compared with existing off-premises station and had four pipelines and a magnetic valve.The part of this increase is to make system when heating or freeze, can by the refrigerant of HTHP and lubricating oil separation out.
Coolant distributor comprises magnetic valve, reservoir 13, oil eliminator 14.This reservoir 13 stores certain refrigerant in advance, when in medium circulation pipeline during cold medium shortage, under the control of Centralized Controller, increases refrigerant in medium circulation pipeline; When in medium circulation pipeline, refrigerant is more, unnecessary refrigerant just stores by this reservoir 13.This oil eliminator 14 stores certain lubricating oil in advance, when lubricating oil in compressor is not enough, under the control of Centralized Controller, increases lubricating oil in medium circulation pipeline; When in compressor, lubricating oil is more, this oil eliminator 14 just stores unnecessary lubricating oil.
Reservoir 13, for storing refrigerant and unnecessary lubricating oil, is provided with fuel level sensor YW3 and YW4, and this sensor is for judging the height of oil level.
Be provided with fuel level sensor YW1 and YW2 of height two positions in oil eliminator 14, on connected pipeline, be provided with magnetic valve DC13 and DC14, single-phase valve D1 simultaneously.
Centralized Controller is according to the order-driven air-conditioning system of consumer, and air-conditioning system controls the indoor set of air-conditioning and the direction of outdoor unit running and refrigerant and lubricating oil flow according to the calculating of Centralized Controller and controlling functions.
Oil pipe is provided with two capillaries, and capillary is provided with corresponding temperature sensor W1 and W2.W1 and W2 measures the temperature of capillary.According to inside variations in temperature auxiliary judgment capillary flowing be oil or refrigerant.
Check valve comprises D1, D2, D3, D4, D5, D6, and the quantity of this check valve can according to the quantity relative set of off-premises station and indoor unit to n.
Magnetic valve comprises DC1, DC2, DC3, DC4, DC5, DC6, DC7, DC8, DC9, DC10, DC11, DC12, DC13, DC14, DC15, DC16, DC17 and DC18, and the quantity of this magnetic valve can according to the quantity relative set of off-premises station and indoor unit to n.
Electronic expansion valve cell is P1, P2, P3 or P4, also can replace with magnetic valve.
Pipe joint comprises GX11/GX21, GX3/GX4/GX5/GX6, GC3/GC4/GC5/GC6, GC11/GC12/GC13/GC21/GC22/GC23, its can according to outdoor and with the quantity relative set of indoor unit to n; These pipe joints above-mentioned can be arranged to magnetic valve as required.
Triple valve unit flows for the commutation of refrigerant.
When heating, magnetic valve DC1 or DC2 opens, and the cold media gas of HTHP, by pipe joint GC11 or GC21, enters pipeline, now magnetic valve DC3, DC9 and DC12 opens, and enters triple valve after the cold media gas of HTHP enters oil separator unit separation lubrication oil by check valve D3; Check valve D2 stops refrigerant to flow into reservoir 13; Now magnetic valve DC14 closes to prevent the gas coolant of HTHP from entering oil eliminator 14 by capillary.Entering indoor unit through electromagnetic expanding valve P5, P6, P7 or P8, after gaseous coolant is condensed, entering magnetic valve DC8, continuing to enter pipe joint GX21 or GX11, finally carrying out in off-premises station 51 or 51; Now, electromagnetic expanding valve P1, P2, P3, P4 and electromagnet DC16 Close All enter reservoir 13 to prevent liquid refrigerants, and now electromagnet DC16 closes, and prevents coolant backflow, and last refrigerant gets back to off-premises station.If when heating, Centralized Controller judges that refrigerant is too sufficient, and Centralized Controller just control is opened in electric expansion valve P1, P2, P3 or P4 any one or more, just can discharge unnecessary refrigerant to reservoir 13; Now, if Centralized Controller determines oil starvation, just open magnetic valve DC13 and DC18, shut electromagnetic valve DC14 and DC15 increases lubricating oil in pipeline.
During refrigeration, magnetic valve DC1 or DC2 closes, the cold media gas of HTHP enters magnetic valve DC4 or DC10 by pipe joint GC12 or GC22, open magnetic valve DC12, allow the cold media gas of HTHP to enter oil eliminator 14 and carry out Oil-gas Separation, triple valve is entered by check valve D3 after the cold media gas of HTHP enters oil eliminator 14 separation lubrication oil, then by check valve D5, enter magnetic valve DC5 or DC11, off-premises station satellite interface is again entered by pipe joint GC1 or GC23, after outdoor heat exchanger condensation, liquid refrigerants is respectively by pipe joint GX11 or GX12, pipe joint GC3 is entered again subsequently respectively by magnetic valve DC6 or DC8, GC4, GC5 or GC6 enters indoor unit, the refrigerant of the gas-liquid two-phase of low-temp low-pressure is become after pervaporation, successively by pipe joint GX3 (GX4/GX5), after electromagnetic expanding valve P5 (P6/P7/P8) and magnetic valve DC16, enter reservoir 13, this reservoir 13 has gas-liquid separating function, the low temperature low pressure gas refrigerant be separated is by check valve D2, and then get back to off-premises station respectively by magnetic valve DC7 or DC3.
When cooling, when Centralized Controller judges that lubricating oil lacks, open magnetic valve DC13 and DC14, in pipeline, discharge lubricating oil by the effect of gravity.
The integrated control system of domestic air conditioner of the present invention, when starting up, can be operated by following steps:
The first step, user is as required to the indoor unit output order needing running;
Second step, Centralized Controller is according to the payload actuating section of indoor unit or whole off-premises station 51,52;
3rd step, opens the inlet end magnetic valve of off-premises station 51,52 and oil eliminator 14 and keeps the regular hour, carries lubricating oil to whole off-premises station 51,52;
4th step, closes the inlet end magnetic valve of non-start up off-premises station 51,52, starts whole off-premises station 51,52, keep the off-premises station of unplanned startup to run a period of time;
5th step, closes unplanned startup off-premises station 51,52, closes the magnetic valve of giving vent to anger of non-start up off-premises station 51,52 over time.
By above-mentioned setting up procedure, effective Collection and use refrigerant and oil can be ensured, better equal oily effect can be realized, make its whole system play sufficient usefulness.
Claims (12)
1. air-conditioner outdoor unit, comprise the off-premises station (51,52) that compressor, cross valve and outdoor heat converter are formed, wherein two passages one end of communication chamber external heat exchanger and interface of off-premises station respectively of cross valve, the other end of outdoor heat exchanger is communicated with another interface of off-premises station, it is characterized in that: the connecting pipe between outdoor heat exchanger and cross valve is provided with magnetic valve, the two ends of magnetic valve are communicated with off-premises station satellite interface respectively.
2. for the air-conditioning integrated control system of air-conditioner outdoor unit according to claim 1, comprise at least two groups in parallel for connecting off-premises station (51, 52) at least two groups of interface and satellite interface and parallel connection are for being connected indoor unit (41, 42) interface, pass through interface, satellite interface and pipeline are by off-premises station (51, 52) and indoor unit (41, 42) medium circulation pipeline is connected to form, it is characterized in that: comprise Centralized Controller and be arranged on the coolant distributor on refrigerant loop, coolant distributor comprises reservoir (13), oil eliminator (14) and valve, the bottom of oil eliminator (14) is provided with oil-piping and is connected with reservoir (13), oil-piping is provided with valve, wherein:
Described coolant distributor is for distributing and control the flow direction and the flow of refrigerant and oil; Wherein, reservoir (13) for separating of with storage refrigerant and oil, oil eliminator (14) is for separating of refrigerant and oil;
Described Centralized Controller is used for controlling indoor unit (41,42), off-premises station (51,52) and coolant distributor and distributing adjustment;
When heating, the flow direction of refrigerant is: the interface of interface-oil eliminator (14)-triple valve-indoor unit (41, the 42)-off-premises station (51,52) of off-premises station (51,52);
During refrigeration, the flow direction of refrigerant is: the interface of interface-indoor unit (41,42)-reservoir (the 13)-off-premises station (51,52) of the satellite interface-outdoor heat converter-off-premises station of satellite interface-oil eliminator (14)-triple valve-off-premises station of off-premises station (51,52).
3. air-conditioning integrated control system as claimed in claim 2, is characterized in that: the bottom position of oil eliminator (14) is higher than the top of reservoir (13).
4. air-conditioning integrated control system as claimed in claim 2 or claim 3, is characterized in that: be provided with two fuel level sensors laying respectively at high and low position in oil eliminator (14), for detecting the height of oil level; Centralized Controller, according to the testing result of fuel level sensor, determines whether input oil in medium circulation pipeline.
5. air-conditioning integrated control system as claimed in claim 4, is characterized in that: be provided with two liquid level sensors laying respectively at high and low position in reservoir (13), for detecting the height of oil level or refrigerant liquid level; Centralized Controller, according to the testing result of liquid level sensor, determines whether input oil or refrigerant in medium circulation pipeline.
6. the integrated control system of domestic air conditioner as claimed in claim 5, it is characterized in that: described oil pipe is provided with two capillaries, each capillary is provided with temperature sensor, Centralized Controller is according to the variations in temperature of temperature sensor measurement, what judge flow in capillary tube is oil or refrigerant, thus the state of valve on control oil pipe.
7. the integrated control system of domestic air conditioner as claimed in claim 6, is characterized in that: any combination that indoor unit (41,42) is one or more in indoor apparatus of air conditioner, refrigerator, refrigerator-freezer, water heater.
8. the integrated control system of domestic air conditioner as claimed in claim 2, is characterized in that: described valve comprises check valve and magnetic valve.
9. the integrated control system of domestic air conditioner as claimed in claim 2, is characterized in that: the interface of indoor unit (41,42) is provided with valve.
10. the integrated control system of domestic air conditioner as claimed in claim 9, is characterized in that: the valve that the interface of described indoor unit (41,42) is all arranged is electric expansion valve.
The integrated control system of 11. domestic air conditioners as claimed in claim 9, is characterized in that: the valve that the interface of described indoor unit (41,42) is all arranged is magnetic valve.
12., for the starting method of the air-conditioning integrated control system of the air-conditioner outdoor unit described in the claims 2 to 11 any one, is characterized in that: comprise the following steps:
The first step, user is as required to the indoor unit output order needing running;
Second step, Centralized Controller is according to the payload actuating section of indoor unit or whole off-premises station (51,52);
3rd step, opens the inlet end magnetic valve of off-premises station (51,52) and oil eliminator (14) and keeps the regular hour, to whole off-premises station (51,52) conveying lubricating oil;
4th step, closes the inlet end magnetic valve of non-start up off-premises station (51,52), starts whole off-premises station (51,52), keep the off-premises station of unplanned startup to run a period of time;
5th step, closes unplanned startup off-premises station (51,52), closes the magnetic valve of giving vent to anger of non-start up off-premises station (51,52) over time.
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| CN103277949B (en) * | 2013-05-24 | 2015-08-05 | 四川长虹空调有限公司 | Flow division control device and method, multi-online air-conditioning system and air conditioner |
| CN106642450B (en) * | 2016-11-10 | 2019-01-04 | 珠海格力电器股份有限公司 | Multi-connected machine refrigerant balance system and multi-gang air-conditioner |
| CN109916043B (en) * | 2019-02-02 | 2021-04-06 | 广东美的暖通设备有限公司 | Mode switching control method and air conditioning system |
| CN110887109B (en) * | 2019-12-04 | 2020-10-27 | 珠海格力电器股份有限公司 | Air conditioning system with variable scale and operation method thereof |
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| EP1538399A2 (en) * | 2003-12-03 | 2005-06-08 | TIIHONEN, Ossi | Control method and control equipment for an air conditioning system |
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| EP1538399A2 (en) * | 2003-12-03 | 2005-06-08 | TIIHONEN, Ossi | Control method and control equipment for an air conditioning system |
| CN200972305Y (en) * | 2006-10-28 | 2007-11-07 | 万红光 | Integral apparatus of refrigerator, water heater and air conditioner |
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