CN103245148A - Oil and coolant control device and method for air conditioner, air conditioning system and air conditioner - Google Patents
Oil and coolant control device and method for air conditioner, air conditioning system and air conditioner Download PDFInfo
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Abstract
本发明涉及一种空调的油和冷媒控制装置、方法及空调系统和空调机。本发明所述的油与冷媒控制装置包括控制器、气液分离器、分液器和排油控制组件，该所述的油与冷媒控制装置，具有至少一组用于连接室外机的接口和至少一组用于连接室内机的接口，通过接口和管道将室外机和室内机连接组成冷媒循环系统，该冷媒循环系统可以完成制冷或制热功能，同时通过所述的控制器获取室内机的所需能力，能够对室内机、室外机中的油与冷媒进行流量控制和调配。本发明的有益效果为，能够自由的对空调的室内机和室外机进行组合控制，从而节约资源，提高利用效率。本发明适用于各种空调。
The invention relates to an air conditioner oil and refrigerant control device and method, an air conditioner system and an air conditioner. The oil and refrigerant control device of the present invention includes a controller, a gas-liquid separator, a liquid separator, and an oil discharge control assembly. The oil and refrigerant control device has at least one set of interfaces for connecting to an outdoor unit and At least one set of interfaces for connecting the indoor unit, the outdoor unit and the indoor unit are connected through the interface and pipes to form a refrigerant circulation system, the refrigerant circulation system can complete the cooling or heating function, and at the same time obtain the indoor unit’s temperature through the controller The required capability is to be able to control and adjust the flow of oil and refrigerant in the indoor unit and outdoor unit. The beneficial effect of the present invention is that the indoor unit and the outdoor unit of the air conditioner can be combined and controlled freely, thereby saving resources and improving utilization efficiency. The invention is applicable to various air conditioners.
Description
Technical field
The present invention relates to air conditioner controlling technology, relate to a kind of oil for domestic air conditioning and refrigerant control device, method and air-conditioning system and air-conditioning specifically.
Background technology
Multi-online air-conditioning system (is called for short: multi-joint machine) be a class formation complexity, inner parameter coupling, the various direct expansion formula central air conditioner system of boundary condition, Energy Efficiency Ratio height, indoor set when having sub-load because of it independently control, use flexibly, favorable expandability, good looking appearance, take installing space little, can not establish special-purpose machine room, outstanding advantage such as can invest by stages, so after nineteen eighty-two is born, its technology is rapidly developed, and is used widely in commercial building at present.But along with the raising of people's living standard, ordinary consumer has been brought into use residential central air conditioning.According to statistics, to the end of the year 2012, the occupation rate of multi-joint machine has reached 36% of central air-conditioning market, and wherein 23% of quantity (platform tricks) product is used for residential housing, this quantity has accounted for 70% of household central air conditioning system, and the principal mode of visible residential central air conditioning is multi-joint machine system.
But multi-joint machine system also has fatal weakness, and the power of off-premises station is big, is generally 5P or 10P, need three phase mains, the leeway that the user can select when buying is less, generally needs single purchase to put in place, so room air conditioner remains the main type of service of family expenses residential air conditioner at present.
Though existing domestic air conditioning has 1 to drag 2 or 1 to drag 3, even have 1 to drag many air conditioners, the air-conditioning system that the off-premises station of being made up of a compressor that but uses and a plurality of indoor set are formed, but the combination of its off-premises station and indoor set is fixed, it also is complete sale, and the power of the maximum of off-premises station is certain, can not change arbitrarily.Above-mentioned one drags many air-conditionings still can not add indoor set or off-premises station arbitrarily according to user's needs, does not have equally and the common function of forming a system of other off-premises stations.In case moreover this one drag many off-premises stations to damage, whole air-conditioning can not use, the structure principle chart of existing family expenses monomer air conditioner as shown in Figure 1.
Raising along with living standards of the people, the increase of living space, the increasing of number between residential houses, the air-conditioner of family expenses ordinary consumer has tricks (indoor set and a cover off-premises station are formed a cover by connecting line) also to be increased exponentially, and the air-conditioning recoverable amount of most of urban households is 2 ~ 6., the installation of many air-conditioners can destroy the attractive in appearance of elevation of building.In addition, existing domestic air conditioning all needs complete purchase, if single purchase overlaps air-conditioning more, as buy three and overlap domestic air conditionings, just need three off-premises stations and three indoor sets, and need connect into three independently refrigerant systems by pipeline, so the cost of disposable input is higher, and these three independently system capability can not utilize mutually.This mainly is that the air-conditioning of the complete sale of existing family expenses is made up of indoor set, off-premises station and connecting line, producer has designed specification before dispatching from the factory, do not allow to mix and use, as 1 off-premises station and 1 's the supporting use of indoor set, can not be with 1 indoor set and 3 the supporting use of off-premises station.In addition, for energy savings, independently space requirement according to actual needs and the size in space, dispose different existing air-conditioning equipments, for example in the bedroom, parlor, dining room all need to dispose independently dissimilar cover air-conditionings, namely according to the size of the area that freezes, buy the air-conditioning equipment of the rated power of different sizes.When environment temperature to 40 is spent, especially the consumer of skyscraper wish can fast-refrigerating, existing domestic air conditioning is but because the restriction of rated power just needs to buy the air-conditioning of bigger power, otherwise the scarce capacity that will seem; When environment temperature was low, when spending as subzero 10, the consumer wished and can heat fast, and existing domestic air conditioning is still owing to the restriction of the rated power scarce capacity that seems.Especially when the one family views and admires TV programme in the parlor, at this moment the parlor just needs bigger power just can meet the demands, if the air-conditioning for bulk/volume buying just needs the bigger rated power of purchase just can satisfy the demand, but the air-conditioning in bedroom and study is owing to the waste that does not need work to equal to leave unused; And for example, the dead of night, when the people in parlor entered rooms such as the bedroom of oneself, study, the air-conditioning that put in the parlor had also begun normal rest, because not needing to allow it enter duty, otherwise had both wasted the energy, did not also reach due effect.At this moment, can, and its refrigeration and the ability that heats be transported to the bedroom if allow the air-conditioning in parlor bring into play due usefulness, wouldn't be to have solved the idle of resource and the waste that causes like this, satisfy bedroom consumer's needs again, can not have this function by existing household air conditioning device.In addition, because existing domestic air conditioning is because capacity is less relatively, for ensureing its compact conformation, its overall design size space is less relatively, so the compressor volume of its corresponding configuration is less relatively (compressor with commercialization is compared) also, such compressor can not be stored more lubricating oil, when using such compressor to carry out parallel running, a series of problem can appear, the Compressor Technology and the air-conditioning technical that are existing low capacity can not solve the problem of domestic air conditioning parallel running, during because of the operation of the compressor parallel of family expenses low capacity, because pressure divergence, cause existing in parallel use of domestic air conditioning compression and make the high compressor oil starvation of pressure and damage, so at present can't be simply make its normal operation with having domestic air conditioning now by in parallel.
Though, be the Chinese patent of CN200620147905.2 as application number, name is called the utility model patent specification of " refrigerator hot water air conditioner integrated machine ", a kind of refrigerator hot water air conditioner integrated machine is disclosed, it is constituted by box system, electric-control system, heat-exchange system, is divided into indoor set, off-premises station two large divisions.Wherein, heat-exchange system comprises compressor, reservoir, automatically controlled combination valve, outdoor heat converter, water heater heat exchanger, heat exchanger of air condition, heat exchanger for refrigerator, solar water heater, circulating pump.This all-in-one only needs a compressor, has cancelled the indoor condenser of freezer compressor and refrigerator, has reduced room noise.This machine reaches purpose energy-conservation and saving cost and price by refrigerator, water heater, air-conditioner are integrated.But this all-in-one remains a kind of complete autonomous system, and the ability of its system is fixed, and when environmental change or user's request changed, this all-in-one still can not make up to bring into play its efficiency with other air-conditioning systems.
Publication number is the Chinese patent of CN94190081.9, name is called the utility model patent specification of " chilling unit ", a kind of refrigeration plant is disclosed, liquid line and gas line are connected respectively to main liquid line and main gas line, so that the setting that main off-premises station and subordinate off-premises station obtain being connected in parallel to each other.On the gas line that extends from the subordinate off-premises station, be provided with a gas throttling valve that when the subordinate off-premises station is stopped operation during heating operation, is fully closed.On the liquid line that extends from the subordinate off-premises station, be provided with a liquid choke valve of when during cooling down operation and heating operation, being stopped operation from the subordinate off-premises station, being closed fully.Like this, the compression of liquid refrigerant and the deficiency of refrigerant circulation quantity have been prevented.But this chilling unit remains a kind of complete autonomous system, and the ability of its system is fixed, and when environmental change or user's request changed, this all-in-one still can not make up to bring into play its efficiency with other air-conditioning systems.
To sum up analyze, find that existing family expenses room air conditioner is machine cooling system in the single ventricle, its reliability and Energy Efficiency Ratio are all higher.For one family, though have many air-conditioners, use the platform number of air-conditioner to be generally 1 ~ 2 simultaneously, but have following deficiency: one family need be installed many cover air-conditioners, causes the air-conditioner investment higher; Power consumption during every cover air-conditioner independent operating depends on the matching relationship between each parts of air-conditioner product to a great extent, so it is big or hour at chilling requirement, air-conditioner can not be used compressor and the heat exchanger 41 of other air-conditioners, causes its power consumption to be difficult to further to reduce or kind of refrigeration cycle can not satisfy user's actual needs; Because the bright dress of the many employings of the tube connector between indoor machine of air-conditioner and the indoor unit and outdoor unit will be so will have a strong impact on indoor decoration style and aesthetic measure.Though the certain user adopts domestic multi-connection machine central air conditioner system, improved the aesthetic measure of indoor and outdoor, but still have following point: the volume of off-premises station is big, Heavy Weight, off-premises station is inconvenient to be fixed on the external wall, be not suitable for skyscraper inhabitation user, otherwise just need when architectural design, stay very big installation site and space in advance for it; Compressor in the domestic multi-connection machine off-premises station is subjected to the restriction of minimum running speed, and the power consumption of multi-joint machine system when the underload rate is still very big, and Energy Efficiency Ratio is lower; Because the output of multi-joint machine is compared with family expenses room air conditioner output, less relatively, it does not have scale effect, its cost higher naturally (comparing with the domestic air conditioner of equal-wattage).
For taking into account the advantage of room air conditioner and household central air conditioning system, and overcome the deficiency of the two as far as possible, proposed the technical scheme that multiple employing room air conditioner makes up the domestic multi-connection machine at present.For example: publication number is the technical scheme that the Chinese patent of CN101482295A discloses a kind of " many separate type air conditioners electricity-saving appliance ", this electricity-saving appliance is installed in series on the connecting line between many split-type air conditioner device indoor unit and outdoor units, many off-premises stations and the repacking of Duo Tai indoor set are become a refrigeration system, can open the off-premises station of more but each the indoor load rate of platform number less number of operation when less at indoor set, thereby reduce the operation energy consumption of compressor, realize the purpose of air conditioner energy-saving.Publication number is that the Chinese patent of CN201867003U also discloses a kind of " split wall-hanging air conditioner one drags many refrigerants separator " technical scheme, on the liquid tube connector of many indoor sets and gas connection pipe can being inserted in liquid chambers in the refrigerant separator that proposes and the air chamber respectively, link to each other respectively with flue with the liquid line of an off-premises station again, the multi-joint machine system that structure is made up of many indoor sets and off-premises station, the refrigerating capacity of regulating each indoor set by the valve of regulating on the indoor set liquid line.Adopt this scheme that the cold-producing medium of the compressor of an off-premises station is communicated with many indoor sets, but off-premises station can not independent assortment.Publication number is that the Chinese patent of CN201259277Y has also proposed to arrange the difference case that comprises splitter, choke valve and Control Component between off-premises station and Duo Tai indoor set, the coupled indoor board number of choke valve number in the difference case equates, realize multi-joint machine function thus, and improve the general degree of off-premises station and indoor set combination.Be used for the current divider of air-conditioner and use the air-conditioner of this current divider, publication number is CN96122401.0, a kind of current divider for air-conditioner, and it comprises: the outdoor pusher side coupling part that links to each other with an off-premises station; With pusher side coupling part in the multicell that a plurality of indoor sets link to each other; A plurality of choke valves, the aperture of each described choke valve is adjustable, its adjustable range is from zero (complete shut-down) to a certain particular value, and described choke valve and a plurality of described indoor set are arranged between described outdoor pusher side coupling part and a plurality of described indoor pusher sides coupling part accordingly; And the controller 5 that is used for a plurality of described choke valves of control; The cooperation of wherein said controller 5 the control described off-premises station that links to each other with described outdoor pusher side coupling part and the described a plurality of indoor sets that link to each other with a plurality of described indoor pusher sides coupling part, described indoor set is become with some auxiliary indoor units by a basic indoor set, the heat-exchange capacity of described basic indoor set and described off-premises station are roughly the same, and the heat-exchange capacity of each described auxiliary indoor set is not more than the heat-exchange capacity of described basic indoor set.
Owing to contain a large amount of lubricating oil in the cold-producing medium of participation kind of refrigeration cycle in the technical scheme described above, these lubricating oil oil, cold-producing medium layering can occur in cryogenic liquid, in gaseous refrigerant, can occur oil droplet again and separate, be difficult to return in the compressor simultaneously with gaseous refrigerant.Therefore, though technique scheme can realize providing the refrigeration of domestic multi-connection machine and/or the function that heats with one or more off-premises station to many indoor sets, but still exist following problem effectively to be solved:
Can not guarantee that the lubricating oil of every compressor returns according to quantity during all or part of off-premises station cooperation, cause some compressor rich oil to occur, oil-poor problem appears in some compressor, thereby causes the contracting of compressor hydraulic pressure or do not have the rusting problem of ruining taking place; If the installation site of each off-premises station has the bigger discrepancy in elevation, because gravity, its problem more can worsen.
When multi-joint mechanism heat is moved, when some indoor sets are stopped transport, in these indoor set heat exchangers 41 and in the connecting line, must deposit a large amount of oil-containing liquid refrigerant of collection, thereby the lubricants capacity that causes returning compressor reduces, and causes the oil-poor problem of burning of compressor.
When choke valve and off-premises station distance is far away, only rely on the structure of the off-premises station of existing room air conditioner, can not avoid the cold-producing medium before the choke valve shwoot to occur, and then cause the cold-producing medium quantity delivered of indoor set to be difficult to satisfy the feed flow requirement.
Therefore, explore the advantage of compatible multi-joint machine and room air conditioner, and the reliability height, the little residential central air conditioning technical scheme of power consumption is present problem demanding prompt solution when the underload rate.
The technical scheme of the air-conditioning on the present market exists certain technical problem, and the domestic air conditioning of especially complete sale exists following problem: resources idle and the waste problem that causes, can not satisfy the problem of the real needs of ordinary consumer; The problem that disposable input cost is high; The follow-up arbitrarily problem of additional investment; The problem of room air conditioner that can not independent assortment.
Summary of the invention
This reality invention technical problem to be solved is, is exactly at present problem, proposes a kind of oil for air-conditioning and refrigerant control device, method and air-conditioning system and air-conditioning.
The present invention solves the problems of the technologies described above the technical scheme that adopts: the oil and the refrigerant control device that are used for air-conditioning, it is characterized in that, comprise gas-liquid separator 1, oil extraction Control Component 2 and knockout 3, described knockout 3 comprises collector 31 and is in charge of 32, one end of described oil extraction Control Component 2 is connected with the bottom of gas-liquid separator 1, the other end is connected with the collector 31 of knockout 3
Described gas-liquid separator 1 is for separating of refrigerant and oil, the liquid collectors 6 of connected system and gas collectors 7;
Described knockout 3 is used for refrigerant is distributed, also is used for simultaneously oil is distributed,
Described oil extraction Control Component 2 is used for unnecessary oil is discharged,
Comprise that also at least one pair of interface 8 that is used to connect off-premises station is used for being connected the interface 9 of indoor set with at least one pair of.
Concrete, described oil extraction Control Component 2 comprises capillary 21 and switching device 22, described switching device 22 is magnetic valve 43 and/or check valve.
Concrete, described gas-liquid separator 1 inside and the pipeline that connects for the interface 9 that is connected indoor set, be provided with oil return curved 11, described oil return curved 11 is provided with spill port 12 and balance pipe 13, described gas-liquid separator 1 bottom is provided with an outage 14 at least, and described outage 14 is connected with oil extraction Control Component 2.
Concrete, the described oil extraction Control Component 2 that the bottom of gas-liquid separator 1 is set utilizes pressure reduction and/or gravity that unnecessary oil is pushed out gas-liquid separator 1.
Concrete, also comprise again cooling package 4, described cooling package again 4 is used for preventing that the refrigerant long-distance transmissions from occurring along the journey shwoot when refrigerating operaton, one end of described cooling package again 4 is connected with the collector 31 of knockout 3, the other end is connected with liquid collectors 6, be arranged between knockout 3 collectors and the liquid collectors 6, described cooling package again 4 comprises heat exchanger 41 and orifice union 42, wherein orifice union 42 is connected on the liquid collectors 6, be used for guiding refrigerant and enter heat exchanger 41, refrigerant absorbs the heat of liquid refrigerants in the liquid collectors 6 and after evaporating, enters gas-liquid separator 1 by pipeline.
Concrete, described orifice union 42 is the combination of electric expansion valve or capillary 44 and magnetic valve 43.
Concrete, it is characterized in that, also comprise controller 5, described controller 5 comprises communication module and control module, described communication module be used for to receive outside control instruction and control instruction is delivered to control module, and described control module is used for according to the control instruction that receives oil and the refrigerant of indoor set and off-premises station being carried out flow-control and allotment.
Concrete, when adopting magnetic valve in the oil extraction Control Component 2 that the bottom of described gas-liquid separator 1 arranges, capillary 21 is provided with temperature sensor near the exit of knockout 3 collectors one end, described temperature sensor is connected for detection of the temperature of capillary 21 outlet liquid and with controller 5, and relatively being used for judging mobile in it according to institute's detected temperatures value and setting value is oil or refrigerant.
Concrete, described oil and refrigerant control device also comprise a shell.
Be used for oil and the refrigerant control method of air-conditioning, it is characterized in that, may further comprise the steps:
A. indoor set and off-premises station are formed closed loop system by the oil and the refrigerant control device that are used for air-conditioning, send the running instruction by oil and the refrigerant control device that is used for air-conditioning to indoor set;
B. according to the payload actuating section of indoor set or whole off-premises stations;
C. judge whether system is to heat running, if then after off-premises station heating operation a period of time, carry lubricating oil to system.
Air-conditioning system, comprise a plurality of indoor sets and off-premises station, it is characterized in that, also comprise as claim 1～11 any described oil and a refrigerant control device for air-conditioning, described oil for air-conditioning is connected with off-premises station with a plurality of indoor sets respectively with the refrigerant control device, by interface and pipeline a plurality of indoor sets and off-premises station are formed coolant circulating system, and refrigerant and oily flowing in the control circulatory system, the liquid line of described each indoor set is provided with throttling arrangement, and throttling arrangement can be valvings such as electric expansion valve.
Concrete, described oil and refrigerant control device also comprise controller 5, described controller 5 comprises communication module and control module, described communication module be used for to receive outside control instruction and control instruction is delivered to control module, and described control module is used for according to the control instruction that receives oil and the refrigerant of indoor set and off-premises station being carried out flow-control and allotment.
Concrete, described oil and refrigerant control device comprise gas-liquid separator 1, controller 5, knockout 3, cooling package 4 and oil extraction Control Component 2 again, one end of described oil extraction Control Component 2 is connected with the bottom of gas-liquid separator 1, the other end is connected with knockout 3, be arranged between the bottom and knockout 3 of gas-liquid separator 1, described cooling package again 4 comprises heat exchanger 41, capillary 44 and magnetic valve 43, described cooling package again 4 is used for the remote refrigerant of carrying, described oil extraction Control Component 2 comprises magnetic valve, capillary 21 and/or check valve, comprise at least two oil returns curved 11 in the described gas-liquid separator 1, on the relevant position of described oil return curved 11 balance pipe 13 and spill port 12 are set, described controller 5 comprises communication module and control module, described communication module is used for receiving outside control instruction and control instruction is delivered to control module, described control module is used for according to the control instruction that receives oil and the refrigerant of indoor set and off-premises station being carried out flow-control and allotment, described gas-liquid separator 1 is for separating of refrigerant and oil, and described knockout 3 is used for the distribution of refrigerant.
Concrete, oil return in the described gas-liquid separator 1 curved 11 is U-shaped structure, described spill port 12 is arranged on the bottom of oil return curved 11 or approaches the position of bottom, and described balance pipe 13 is arranged on the top of spill port 12, and the caliber size of described oil return curved 11 comprises plurality of specifications.
Concrete, described gas-liquid is provided with two fuel level sensors that lay respectively at high and low position in device, connect for detection of the height of oil level and in controller 5, controller 5 can be according to the testing result of fuel level sensor, determines whether transferring oil in the medium circulation pipeline.
Concrete, described indoor set is one or more in indoor apparatus of air conditioner, refrigerator, refrigerator-freezer and the water heater.
Air-conditioning is characterized in that, also comprises connecting line, and described connecting line is connected with the refrigerant control device with the oil that is used for air-conditioning.
Beneficial effect of the present invention is, both solved resources idle and the waste that causes, satisfied the real needs of ordinary consumer again; Simultaneously, also can save disposable input cost, follow-up arbitrarily additional investment provides a kind of room air conditioner system that can independent assortment, and the reliability height, the little residential central air conditioning technical scheme of power consumption when the underload rate.
The present invention is to further designing and developing that existing air conditioner carries out, and this family expenses oil has changed existing air-conditioning marketing model and the mode of production up hill and dale with the appearance of refrigerant control system, has broken the limitation of the necessary complete sale of domestic air conditioning and production.Even under the immovable situation of compressor arrangement, also can make the use in parallel of existing domestic air conditioning.
Oil of the present invention and refrigerant control system have changed the present situation of the complete sale of existing air-conditioning, the consumer can be according to own real needs, oneself actual purchase ability and the conception of oneself or design, buy different off-premises stations and indoor set type or platform number, just fit together after going home and to satisfy instructions for use.Simultaneously, the consumer also can buy different off-premises stations or indoor set again according to additional demand afterwards, after going home, just fits together again and can satisfy instructions for use.If have many off-premises stations, when wherein a certain off-premises station breaks down, by the measure that the off-premises station of this fault is isolated, the technical measures of namely turn-offing its air inlet and the path of giving vent to anger temporarily isolate this faulty equipment, allow other trouble-free off-premises station normally to move; Certainly, other trouble-free off-premises stations can not move yet, and after the fault for the treatment of the off-premises station that breaks down in the system solves, begin to run well again.
The control method of oil of the present invention and refrigerant control system, it is centralized Control that realization has the decentralised control of indoor apparatus of air conditioner and off-premises station, the user can select for use existing indoor set to be connected easily with the refrigerant control system with oil of the present invention with off-premises station, and manufacturer can also carry out simplified design widely to existing indoor set and off-premises station.
Description of drawings
Fig. 1 is the structure principle chart of existing family expenses monomer air conditioner;
Fig. 2 is the functional-block diagram that oil of the present invention and refrigerant control device are formed air-conditioning system;
Fig. 3 is the structure principle chart of oil of the present invention and refrigerant control device;
Fig. 4 is the structural representation of air-conditioning system of the present invention;
Fig. 5 is the structure principle chart of family expenses gas-liquid separator of the present invention;
Fig. 6 is the control method flow chart of oil of the present invention and refrigerant control device.
The specific embodiment
Below in conjunction with accompanying drawing, the operation principle of inventing is described further:
Oil and refrigerant control device that the present invention proposes are mainly used in avoiding the resources idle wasting phenomenon in the existing complete air conditioner use, satisfy the flexible combination air-conditioning needs of ordinary consumer reality; By oil and refrigerant control device are set, realized the independent assortment and independent control of each room air conditioner in the system.
The invention allows for the air-conditioning system that connects to form according to the method for oil and refrigerant control device control operation of air conditioner and by oil and refrigerant control device with can with the oily air-conditioning that is connected with the refrigerant control device.
As shown in Figure 1, be the structure principle chart of existing family expenses split-type air conditioner device, its indoor set simply directly is connected by tube connector with off-premises station, therefore a plurality of off-premises stations and indoor set can not be carried out flexible combination.
As shown in Figure 2, the air-conditioning system that adopts the oil for air conditioner of the present invention and refrigerant control device to form, comprise that at least two groups in parallel are used for the interface of connection off-premises station N1, N2 and the interface that at least two groups in parallel are used for being connected indoor set M1, M2, are connected to form medium circulation pipeline by interface and pipeline with off-premises station and indoor set.Interface can turn-off or open-minded by manually-operated gate, plug, magnetic valve etc., is beneficial to increase and decrease that the user carries out off-premises station N1, N2 and indoor set M1, M2 as required and connects and come into operation.Wherein oil mainly comprises the gas-liquid separator 1 that can separate gas-liquid in the pipeline and can control indoor set and the controller 5 of off-premises station work with the refrigerant control device.
As shown in Figure 3, oil of the present invention and refrigerant control device 100, mainly comprise gas-liquid separator 1, oil extraction Control Component 2, knockout 3, wherein said oil and refrigerant control device also have at least one pair of interface 8 that is used for the connection off-premises station and are used for being connected the interface 9 of indoor set with at least one pair of; Oil extraction Control Component 2 is arranged between the collector 31 of the bottom of gas-liquid separator 1 and knockout 3.Above-mentioned oil extraction Control Component 2 comprises capillary 21, also comprises magnetic valve and/or check valve.
As shown in Figure 5, the adapter of gas-liquid separator 1 inside is provided with that oil return is curved 11, and oil return curved 11 is provided with spill port 12 or balance pipe 13, and gas-liquid separator 1 bottom arranges at least one outage 14, and outage 14 has with oil extraction Control Component 2 and links to each other.
As to further improvement in the technical proposal, during refrigerating operaton when preventing the refrigerant long-distance transmissions shwoot, also be provided with again cooling package 4 at oil and refrigerant control device, this again cooling package 4 comprise heat exchanger 41 and orifice union 42, this again cooling package 4 be arranged between knockout 3 collectors and the liquid collectors 6, wherein orifice union 42 is connected on the liquid collectors 6, and guiding refrigerant enters heat exchanger 41, and refrigerant enters gas-liquid separator 1 by pipeline behind pervaporation.
As to further improvement in the technical proposal, described orifice union 42 is electric expansion valve or capillary 44 and the combination of magnetic valve 43.
As to further improvement in the technical proposal, for controlling the flow of refrigerant and oil better, also be provided with controller 5 in oil and the refrigerant control device, described controller 5 has communication function and can carry out flow-control and allotment to the oil in indoor set, the off-premises station and refrigerant according to the instruction of itself or according to the instruction of indoor set or off-premises station.
As to further improvement in the technical proposal, be that oil or refrigerant and control are to system's transferring oil for what flow in the capillary 21 of judging oil extraction Control Component 2 better, the bottom of described gas-liquid separator 1 be provided with magnetic valve, this magnetic valve connects capillary 21, in capillary 21, be provided with temperature sensor, temperature for detection of capillary 21, relatively be used for judging oil or refrigerant according to institute's detected temperatures value and setting value, controller 5 output control instructions are used for the switching time of magnetic valve simultaneously, in order to more than needed in the gas-liquid separator 1 or unnecessary oil are pushed out gas-liquid separator 1.
When the oil extraction Control Component 2 that arranges when the bottom of gas-liquid separator 1 is magnetic valve, capillary 21 is being provided with temperature sensor near knockout 3 collectors one end exit, this temperature sensor is for detection of the temperature of capillary 21 outlet fluids, is used for relatively judging that according to institute's detected temperatures value and setting value what flow in it is oil or refrigerant.
For independent assortment indoor apparatus of air conditioner and off-premises station, the embodiment of the invention also discloses a kind of air-conditioning system, this air-conditioning system as shown in Figure 4, comprise N off-premises station 300, M indoor set 200, N and M are more than or equal to 1, it is characterized in that: also comprise oil and refrigerant control device 100, described oil has N to being used for being connected the interface 9 and at least 1 pair of interface 8 that is used for being connected off-premises station of indoor set with refrigerant control device 100, by interface and pipeline N off-premises station 300 and M indoor set 200 are connected to form a coolant circulating system, this coolant circulating system can be finished refrigeration or heat-production functions; Wherein, the liquid line of described each indoor set 200 is provided with electric expansion valve, for the flow of the refrigerant of controlling the evaporimeter that flows into indoor set.Preferably, this oil and refrigerant control device have controller 5, and described controller 5 has communication function and can carry out flow-control and allotment to the oil in indoor set, the off-premises station and refrigerant according to the instruction of itself or according to the instruction of indoor set or off-premises station.
As the further improvement to technical scheme, for satisfying user's actual needs better, described a kind of air-conditioning system, comprise that at least two in parallel groups are used for connecting off-premises station 300(W1, W2) interface and at least two groups in parallel for being connected indoor set 200(N1, N2) interface, by interface and pipeline off-premises station and indoor set are connected to form medium circulation pipeline, also comprise oil and refrigerant control device 100, described oil and refrigerant control device 100 are used for distributing and controlling the flow direction and the flow of refrigerant and oil.
Operation principle of the present invention is:
Air-conditioning system comprises off-premises station, indoor set and oil and refrigerant control device, wherein oil comprises gas-liquid separator 1 with the refrigerant control device, controller 5, knockout 3, cooling package 4 and oil extraction Control Component 2 again, described oil extraction Control Component 2 is between the bottom and knockout 3 of gas-liquid separator 1, described cooling package again 4 comprises heat exchanger 41, capillary 44 and magnetic valve 43, this again cooling package 4 be used for the remote refrigerant of carrying, described oil extraction Control Component 2 comprises magnetic valve, capillary 21 and/or check valve, described gas-liquid separator 1 comprises that at least two oil returns are curved 11, on the relevant position of described two oil returns curved 11 balance pipe 13 and spill port 12 is set; Described controller 5 has communication function and can carry out flow-control and allotment to the oil in indoor set, the off-premises station and refrigerant according to the instruction of itself or according to the instruction of indoor set or off-premises station; Described gas-liquid separator 1 is for separating of refrigerant and oil, and described knockout 3 is used for the distribution of refrigerant;
Wherein, when heating, the flow direction of refrigerant is: off-premises station (W1, W2) → gas-liquid separator 1 → indoor set (N1, N2) → liquid collectors 6 → knockout 3 → off-premises station (W1, W2); Oil is by behind the gas-liquid separator 1, be separated and be stored in the bottom of gas-liquid separator 1, regularly or not timing ground to system's transferring oil;
During refrigeration, the flow direction of refrigerant is: off-premises station (W1, W2) → knockout 3 → liquid collectors 6 → indoor set (N1, N2) → gas-liquid separator 1 → off-premises station (W1, W2); The spill port 12 of the pipeline of oil by being connected in gas-liquid separator 1 is taken back compressor by certain refrigerant flow rate.
Further improve, in gas-liquid separator 1, can be provided with two fuel level sensors that lay respectively at high and low position, for detection of the height of oil level; Controller 5 is according to the testing result of fuel level sensor, determines whether transferring oil in the medium circulation pipeline.
Oil in the air-conditioning system and refrigerant control device also are provided with controller 5, and controller 5 has communication function and can carry out flow-control and allotment to the oil in indoor set, the off-premises station and refrigerant according to the instruction of itself or according to the instruction of indoor set or off-premises station.Wherein the oil return in the liquid/gas separator curved 11 is U-shaped shape, spill port 12 is in the bottom of oil return curved 11 or approach the position of bottom, balance pipe 13 is at the upper position of the spill port 12 of oil return curved 11, and the caliber size of oil return curved 11 comprises plurality of specifications, to adapt to the air-conditioner outdoor unit of different size.
A kind of for the control method of oil with the refrigerant control device, as shown in Figure 6, wherein said oil and refrigerant control device are as operation platform, and be further comprising the steps of during operation:
The first step, the user instructs to a certain or some indoor set output running according to the needs of oneself;
In second step, the controller 5 in oil and the refrigerant control device is according to payload actuating section or whole off-premises station of indoor set;
The 3rd step, the judgement system be heat the running or cooling operation, if the off-premises station heating operation, treat off-premises station heating operation a period of time after, the magnetic valve of the oil extraction Control Component 2 bottom gas-liquid separator 1 is opened also keeps the regular hour, relies on the effect of gravity to carry lubricating oil to system.
Claims (18)
1. the oil and the refrigerant control device that are used for air-conditioning, it is characterized in that, comprise gas-liquid separator (1), oil extraction Control Component (2) and knockout (3), described knockout (3) comprises collector (31) and is in charge of (32), one end of described oil extraction Control Component (2) is connected with the bottom of gas-liquid separator (1), the other end is connected with the collector (31) of knockout (3)
Described gas-liquid separator (1) is for separating of refrigerant and oil, the liquid collectors of connected system (6) and gas collectors (7),
Described knockout (3) is used for refrigerant is distributed,
Described oil extraction Control Component (2) is used for unnecessary oil is discharged,
Comprise that also at least one pair of is used to connect the interface of off-premises station (8) and is used for being connected the interface (9) of indoor set with at least one pair of.
2. oil and refrigerant control device for air-conditioning according to claim 1 is characterized in that, described oil extraction Control Component (2) comprises capillary (21) and switching device (22), and described switching device (22) is magnetic valve and/or check valve.
3. oil and refrigerant control device for air-conditioning according to claim 1 and 2, it is characterized in that, described gas-liquid separator (1) inside and the pipeline that connects for the interface (8) that is connected off-premises station, be provided with oil return curved (11), described oil return curved (11) is provided with spill port (12) and balance pipe (13), described gas-liquid separator (1) bottom is provided with an outage (14) at least, and described outage (14) is connected with oil extraction Control Component (2).
4. oil and refrigerant control device for air-conditioning according to claim 3 is characterized in that, described oil extraction Control Component (2) utilizes pressure reduction and/or gravity that unnecessary oil is pushed out gas-liquid separator (1).
5. according to claim 1 or 2 or 4 described oil and refrigerant control device for air-conditioning, it is characterized in that, also comprise again cooling package (4), described cooling package again (4) is used for preventing that the refrigerant long-distance transmissions from occurring along the journey shwoot when refrigerating operaton, one end of described cooling package again (4) is connected with the collector (31) of knockout (3), the other end is connected with liquid collectors (6), described cooling package again (4) comprises heat exchanger (41) and orifice union (42), described orifice union (42) is connected on the liquid collectors (6), be used for guiding refrigerant and enter heat exchanger (41), refrigerant enters gas-liquid separator (1) by pipeline after absorbing the heat of vaporization of the interior liquid refrigerants of liquid collectors (6).
6. oil and refrigerant control device for air-conditioning according to claim 5 is characterized in that, described orifice union (42) is the combination of electric expansion valve or capillary (44) and magnetic valve (43).
7. according to claim 1～4 or 6 any described oil and refrigerant control device for air-conditioning, it is characterized in that, also comprise controller (5), described controller (5) comprises communication module and control module, described communication module be used for to receive outside control instruction and control instruction is delivered to control module, and described control module is used for according to the control instruction that receives oil and the refrigerant of indoor set and off-premises station being carried out flow-control and allotment.
8. oil and refrigerant control device for air-conditioning according to claim 5, it is characterized in that, also comprise controller (5), described controller (5) comprises communication module and control module, described communication module be used for to receive outside control instruction and control instruction is delivered to control module, and described control module is used for according to the control instruction that receives oil and the refrigerant of indoor set and off-premises station being carried out flow-control and allotment.
9. oil and refrigerant control device for air-conditioning according to claim 5, it is characterized in that, when the switching device (22) in the described oil extraction Control Component (2) adopts magnetic valve, capillary (21) is provided with temperature sensor near the exit of knockout (3) collector one end, and described temperature sensor is connected for detection of the temperature of capillary (21) outlet liquid and with controller (5).
10. according to claim 1 or 2 or 8 or 9 described oil and refrigerant control device for air-conditioning, it is characterized in that described oil and refrigerant control device also comprise a shell.
11. be used for oil and the refrigerant control method of air-conditioning, it is characterized in that, may further comprise the steps:
A. indoor set and off-premises station are formed closed loop system by the oil and the refrigerant control device that are used for air-conditioning, send the running instruction by oil and the refrigerant control device that is used for air-conditioning to indoor set;
B. according to the payload actuating section of indoor set or whole off-premises stations;
C. judge whether system is to heat running, if then after off-premises station heating operation a period of time, carry lubricating oil to system.
12. air-conditioning system, comprise a plurality of indoor sets and off-premises station, it is characterized in that, also comprise as claim 1～10 any described oil and a refrigerant control device for air-conditioning, described oil is connected with off-premises station with a plurality of indoor sets respectively with the refrigerant control device, by interface and pipeline a plurality of indoor sets and off-premises station are formed coolant circulating system, and refrigerant and oily flowing in the control circulatory system, the liquid line of described each indoor set is provided with throttling arrangement.
13. air-conditioning system according to claim 12, it is characterized in that, described oil and refrigerant control device also comprise controller (5), described controller (5) comprises communication module and control module, described communication module be used for to receive outside control instruction and control instruction is delivered to control module, and described control module is used for according to the control instruction that receives oil and the refrigerant of indoor set and off-premises station being carried out flow-control and allotment.
14. air-conditioning system according to claim 12, it is characterized in that, described oil and refrigerant control device comprise gas-liquid separator (1), controller (5), knockout (3), cooling package (4) and oil extraction Control Component (2) again, one end of described oil extraction Control Component (2) is connected with the bottom of gas-liquid separator (1), the other end is connected with knockout (3), described cooling package again (4) comprises heat exchanger (41), capillary (44) and magnetic valve, described cooling package again (4) is used for the remote refrigerant of carrying, described oil extraction Control Component (2) comprises magnetic valve, capillary (21) and/or check valve, comprise in the described gas-liquid separator (1) that at least two oil returns bend (11), on the relevant position of described oil return curved (11) balance pipe (13) and spill port (12) are set, described controller (5) comprises communication module and control module, described communication module is used for receiving outside control instruction and control instruction is delivered to control module, described control module is used for according to the control instruction that receives oil and the refrigerant of indoor set and off-premises station being carried out flow-control and allotment, described gas-liquid separator (1) is for separating of refrigerant and oil, and described knockout (3) is used for the distribution of refrigerant.
15. air-conditioning system according to claim 14, it is characterized in that, oil return in the described gas-liquid separator (1) curved (11) is U-shaped structure, described spill port (12) is arranged on the bottom of oil return curved (11) or approaches the position of bottom, described balance pipe (13) is arranged on the top of spill port (12), and the caliber size of described oil return curved (11) comprises plurality of specifications.
16. according to any described air-conditioning system of claim 12～15, it is characterized in that, be provided with two fuel level sensors that lay respectively at high and low position in the described gas-liquid separator (1), connect for detection of the height of oil level and in controller (5).
17. according to any described air-conditioning system of claim 12～15, it is characterized in that described indoor set is one or more in indoor apparatus of air conditioner, refrigerator, refrigerator-freezer and the water heater.
18. air-conditioning is characterized in that, also comprises connecting line, described connecting line be connected with the refrigerant control device as any described oil for air-conditioning of claim 1～10.
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| CN201310198997.1A CN103245148B (en) | 2013-05-24 | 2013-05-24 | For the oil of air-conditioning and coolant control device and method, air-conditioning system and air-conditioning |
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| CN201310198997.1A CN103245148B (en) | 2013-05-24 | 2013-05-24 | For the oil of air-conditioning and coolant control device and method, air-conditioning system and air-conditioning |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103697643A (en) * | 2013-12-18 | 2014-04-02 | 四川长虹电器股份有限公司 | Air conditioning system |
| CN111974336A (en) * | 2020-06-30 | 2020-11-24 | 新兴铸管股份有限公司 | Device for improving sulfuric acid color formation |
| CN112771320A (en) * | 2018-09-25 | 2021-05-07 | 东芝开利株式会社 | Air conditioner |
| CN114857664A (en) * | 2022-05-30 | 2022-08-05 | 青岛海信日立空调系统有限公司 | Multi-split system |
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| JPH1114198A (en) * | 1997-06-20 | 1999-01-22 | Matsushita Refrig Co Ltd | Gas/liquid separator |
| CN103062841A (en) * | 2013-01-18 | 2013-04-24 | 四川长虹电器股份有限公司 | Air-conditioning system, control system and air-conditioning control method |
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| JPH1114198A (en) * | 1997-06-20 | 1999-01-22 | Matsushita Refrig Co Ltd | Gas/liquid separator |
| CN103062841A (en) * | 2013-01-18 | 2013-04-24 | 四川长虹电器股份有限公司 | Air-conditioning system, control system and air-conditioning control method |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103697643A (en) * | 2013-12-18 | 2014-04-02 | 四川长虹电器股份有限公司 | Air conditioning system |
| CN103697643B (en) * | 2013-12-18 | 2016-01-13 | 四川长虹电器股份有限公司 | an air conditioning system |
| CN112771320A (en) * | 2018-09-25 | 2021-05-07 | 东芝开利株式会社 | Air conditioner |
| CN112771320B (en) * | 2018-09-25 | 2022-08-02 | 东芝开利株式会社 | Air conditioner |
| CN111974336A (en) * | 2020-06-30 | 2020-11-24 | 新兴铸管股份有限公司 | Device for improving sulfuric acid color formation |
| CN111974336B (en) * | 2020-06-30 | 2022-04-26 | 新兴铸管股份有限公司 | Device for improving sulfuric acid color formation |
| CN114857664A (en) * | 2022-05-30 | 2022-08-05 | 青岛海信日立空调系统有限公司 | Multi-split system |
| CN114857664B (en) * | 2022-05-30 | 2023-11-28 | 青岛海信日立空调系统有限公司 | Multi-split air conditioner system |
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| CN103245148B (en) | 2015-08-05 |
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