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CN106288485A - The adjustable air conditioning system of coolant quantity - Google Patents

The adjustable air conditioning system of coolant quantity Download PDF

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Publication number
CN106288485A
CN106288485A CN201610677362.3A CN201610677362A CN106288485A CN 106288485 A CN106288485 A CN 106288485A CN 201610677362 A CN201610677362 A CN 201610677362A CN 106288485 A CN106288485 A CN 106288485A
Authority
CN
China
Prior art keywords
coolant
air conditioning
conditioning system
branch road
medium circulation
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201610677362.3A
Other languages
Chinese (zh)
Inventor
吴孔祥
许永锋
梁伯启
李洪生
卢健洪
邵亚西
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Midea Group Co Ltd
Guangdong Midea HVAC Equipment Co Ltd
Original Assignee
Midea Group Co Ltd
Guangdong Midea HVAC Equipment Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Midea Group Co Ltd, Guangdong Midea HVAC Equipment Co Ltd filed Critical Midea Group Co Ltd
Priority to CN201610677362.3A priority Critical patent/CN106288485A/en
Publication of CN106288485A publication Critical patent/CN106288485A/en
Pending legal-status Critical Current

Links

Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25BREFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B13/00Compression machines, plants or systems, with reversible cycle
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25BREFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B41/00Fluid-circulation arrangements
    • F25B41/20Disposition of valves, e.g. of on-off valves or flow control valves
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25BREFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B41/00Fluid-circulation arrangements
    • F25B41/30Expansion means; Dispositions thereof
    • F25B41/31Expansion valves
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25BREFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B41/00Fluid-circulation arrangements
    • F25B41/30Expansion means; Dispositions thereof
    • F25B41/37Capillary tubes
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25BREFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B49/00Arrangement or mounting of control or safety devices
    • F25B49/02Arrangement or mounting of control or safety devices for compression type machines, plants or systems
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25BREFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B2313/00Compression machines, plants or systems with reversible cycle not otherwise provided for
    • F25B2313/027Compression machines, plants or systems with reversible cycle not otherwise provided for characterised by the reversing means
    • F25B2313/02741Compression machines, plants or systems with reversible cycle not otherwise provided for characterised by the reversing means using one four-way valve
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25BREFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B2313/00Compression machines, plants or systems with reversible cycle not otherwise provided for
    • F25B2313/029Control issues
    • F25B2313/0292Control issues related to reversing valves
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25BREFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B2400/00General features or devices for refrigeration machines, plants or systems, combined heating and refrigeration systems or heat-pump systems, i.e. not limited to a particular subgroup of F25B
    • F25B2400/19Pumping down refrigerant from one part of the cycle to another part of the cycle, e.g. when the cycle is changed from cooling to heating, or before a defrost cycle is started
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25BREFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B2500/00Problems to be solved
    • F25B2500/05Cost reduction
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25BREFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B2600/00Control issues
    • F25B2600/25Control of valves

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Thermal Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Air-Conditioning For Vehicles (AREA)

Abstract

The invention belongs to air-conditioning technical field, disclose a kind of adjustable air conditioning system of coolant quantity, including the coolant storage element connected with air conditioning system medium circulation pipeline, described coolant storage element is for adding coolant or reclaiming the part coolant in medium circulation pipeline so that the refrigeration of air conditioning system or heating effect keep stable in air conditioning system running, to medium circulation pipeline.Coolant total amount in medium circulation pipeline, by connecting coolant storage element in the medium circulation pipeline of original air conditioning system, can be adjusted by the present invention at any time, makes the refrigeration of air conditioning system or heating effect keep stable;Coolant holding vessel is connected with medium circulation pipeline by two branch roads, utilizes the characteristic in coolant flow process carry out coolant adding and reclaim the operation of coolant, it is not necessary to additionally to arrange driver element;Capillary tube can play cushioning effect, reduces high pressure coolant to coolant holding vessel and the percussion of associated pipe, protection pipeline.

Description

The adjustable air conditioning system of coolant quantity
Technical field
The present invention relates to air-conditioning technical field, particularly to a kind of adjustable air conditioning system of coolant quantity.
Background technology
For multiple on-line system or business air conditioner, the replacement of new and old coolant has become as a kind of trend;5 to 10 years front Air conditioning system mainly uses R22 (CHClF2, monochlorodifluoromethane call Freon-22) coolant, and existing air conditioning system uses R410a (difluoromethane and 50% pentafluoroethane by 50% form, and are a kind of novel environment-friendly refrigerants) or other working medium Coolant.But in system replacement Engineering operation, tend to occur original system pipeline drawing to lose, cause the length of pipe cannot be just Really calculate, the problem that often cannot determine the coolant total amount that this air conditioning system needs when adding new cooling media.
Summary of the invention
(1) to solve the technical problem that
The technical problem to be solved in the present invention is: for solve air conditioning system change coolant time due to pipeline shortage of data cannot Determine the problem that need to add coolant total amount.
(2) technical scheme
In order to solve above-mentioned technical problem, the invention provides a kind of adjustable air conditioning system of coolant quantity, including with air-conditioning System medium circulation pipeline connection coolant storage element, described coolant storage element in air conditioning system running, Add coolant to medium circulation pipeline or reclaim the part coolant in medium circulation pipeline so that the refrigeration of air conditioning system or heat Effect keeps stable.
Wherein, described coolant storage element includes: coolant holding vessel, for reclaiming the of coolant from medium circulation pipeline One branch road, for adding the second branch road of coolant in medium circulation pipeline, described first branch road, the second branch road are all cold with described Matchmaker's holding vessel connects, and described first branch road connects with the liquid side refrigerant pipeline between indoor heat exchanger with outdoor heat exchanger, described Second branch road connects with suction port of compressor pipeline;State to be correspondingly provided with on the first branch road, the second branch road and be connected with same controller First control valve, the second control valve.
Wherein, described first branch road is with the pipe between outdoor expansion valve outlet and the indoor heat exchanger entrance in refrigeration path Road connects.
Wherein, described first branch road being additionally provided with capillary tube, described first control valve and coolant holding vessel are by described hair Tubule connects.
Wherein, the entrance pipe of described compressor is provided with gas-liquid separator, the entrance of described compressor and gas-liquid separation The outlet of device, described second branch road connects with the entrance pipe of described gas-liquid separator.
Wherein, described first branch road, the second branch road all top with described coolant holding vessel connects.
Wherein, in refrigeration path, on the pipeline between outlet and the entrance of indoor heat exchanger of described outdoor expansion valve Connecting and have liquid side stop valve, described first branch road is with the pipeline connection between outdoor expansion valve outlet and liquid side stop valve entrance.
Wherein, in refrigeration path, the outlet of described indoor heat exchanger passes sequentially through gas and surveys stop valve, cross valve with described The entrance connection of gas-liquid separator, described second branch road connects with the pass road between cross valve with gas-liquid separator entrance.
(3) beneficial effect
Technique scheme has the advantage that the adjustable air conditioning system of one coolant quantity of the present invention, by original sky Connect coolant storage element in the medium circulation pipeline of adjusting system, can at any time the coolant total amount in medium circulation pipeline be carried out Regulation, makes the refrigeration of air conditioning system or heating effect keep stable;Coolant holding vessel passes through two branch roads and medium circulation pipeline Connection, utilizes the characteristic in coolant flow process, carries out coolant adding and the operation reclaiming coolant respectively, it is not necessary to extra setting is driven Moving cell, cost-effective;Capillary tube can play cushioning effect, reduces high pressure coolant to coolant holding vessel and associated pipe Percussion, protects pipeline;Second branch road connects with the entrance of gas-liquid separator, and the coolant supplemented into first will be through gas-liquid separation Device could enter compressor with gaseous form after processing, and protects compressor;By the first branch road, the second branch road all with coolant holding vessel The function of this coolant storage element that then further enhances of top connection, i.e. can realize reclaiming the refrigeration oil in original system With the function of impurity, after having changed coolant, the coolant total amount in medium circulation pipeline can be adjusted again, thus without list Only two containers, save space, convenient operation.
Accompanying drawing explanation
Fig. 1 is the structural representation of the adjustable air conditioning system of coolant quantity of the present invention.
Wherein, 1, compressor;2, cross valve;3, outdoor heat exchanger;4, outdoor expansion valve;5, the first control valve;6, capillary Pipe;7, coolant holding vessel;8, the second control valve;9, gas-liquid separator;10, liquid side stop valve;11, gas surveys stop valve.
Detailed description of the invention
Below in conjunction with the accompanying drawings and embodiment, the detailed description of the invention of the present invention is described in further detail.Hereinafter implement Example is used for illustrating the present invention, but is not limited to the scope of the present invention.
In describing the invention, it should be noted that except as otherwise noted, " multiple " be meant that two or two with On;Term " on ", D score, "left", "right", " interior ", " outward ", " front end ", " rear end ", " head ", the orientation of the instruction such as " afterbody " Or position relationship is based on orientation shown in the drawings or position relationship, it is for only for ease of the description present invention and simplifies description, and It not to indicate or imply that the device of indication or element must have specific orientation, with specific azimuth configuration and operation, therefore It is not considered as limiting the invention.Additionally, term " first ", " second ", " the 3rd " etc. are only used for describing purpose, and can not It is interpreted as instruction or hint relative importance.
In describing the invention, in addition it is also necessary to explanation, unless otherwise clearly defined and limited, term " install ", " be connected ", " connection " should be interpreted broadly, and connects for example, it may be fixing, it is also possible to be to removably connect, or connect integratedly Connect;Can be to be mechanically connected, it is also possible to be electrical connection;Can be to be joined directly together, it is also possible to be indirectly connected to by intermediary.Right For those of ordinary skill in the art, visual concrete condition understands above-mentioned term concrete meaning in the present invention.
As it is shown in figure 1, the invention discloses a kind of adjustable air conditioning system of coolant quantity, including with air conditioning system refrigerant circulation The coolant storage element of pipeline connection, described coolant storage element is in air conditioning system running, to refrigerant circulation pipe Road is added coolant or is reclaimed the part coolant in medium circulation pipeline so that the refrigeration of air conditioning system or heating effect keep stable.
Medium circulation pipeline of the present invention refers to original compressor, off-premises station, outdoor expansion valve, indoor mechanism Closed loop that become, that circulate for coolant.
After new cooling media adds in air conditioning system, owing to coolant addition is not inconsistent with system demand, air conditioning system is in fortune There will be refrigeration during row or heating effect is poor, it is impossible to realize the phenomenon of stable operation;Coolant storage element is in time to coolant Coolant quantity in circulation line is adjusted, and adds coolant when coolant total amount is on the low side, reclaims coolant, ensure when coolant total amount is on the high side The stable operation of air conditioning system, it is ensured that the refrigeration of air conditioning system and heating effect.Coolant storage element directly connects with air conditioning system The coolant total amount led to and be automatically adjusted in medium circulation pipeline, it is not necessary to system of opening individually adds coolant, easy to operate, and energy Ensure the sealing of medium circulation pipeline, do not affect the properly functioning of air conditioning system.
Concrete, described coolant storage element includes: coolant holding vessel 7, for reclaiming coolant from medium circulation pipeline The first branch road, for adding the second branch road of coolant in medium circulation pipeline, described first branch road, the second branch road are all and institute Stating coolant holding vessel 7 to connect, described first branch road is with the liquid side refrigerant pipeline between indoor heat exchanger and outdoor heat exchanger 3 even Logical, described second branch road connects with compressor 1 entrance pipe;State and be correspondingly provided with and same control on the first branch road, the second branch road First control valve the 5, second control valve 8 that device connects.Preferably, the aperture of described first control valve the 5, second control valve 8 Regulation.
According to the sign of air conditioning system, such as the change of outdoor heat exchanger 3 temperature of outgoing air, can reflect air conditioning system Coolant storage in medium circulation pipeline is on the high side or on the low side;Such as temperature of outgoing air is higher, illustrates in medium circulation pipeline Coolant quantity is on the low side, needs to add coolant;And temperature of outgoing air is on the low side, illustrate that the coolant quantity in medium circulation pipeline is on the high side, need by Part coolant discharges medium circulation pipeline.According to the sign of air conditioning system, in time the coolant in coolant storage element is supplemented to In system, or by unnecessary refrigerant recovering to coolant storage element, it is achieved to the coolant total amount in medium circulation pipeline Regulation, to ensure air conditioning system stable operation, it is to avoid the coolant needed for running with air conditioning system because of the total amount of newly added coolant is total Amount is not inconsistent and affects the phenomenon generation that air conditioning system is run normally, it is ensured that the refrigeration of air conditioning system or heating effect.
Such as when detecting that outdoor heat exchanger 3 temperature of outgoing air is higher, illustrate that refrigerant temperature is higher, need to increase coolant, Now open the second control valve 8, close the first control valve 5, can be automatically by the part in coolant holding vessel 7 during refrigerant circulation Coolant sucks and participates in circulation in medium circulation pipeline;Temperature of outgoing air according to outdoor heat exchanger 3 and the comparison of normal temperature value, if Difference is less, illustrates that coolant demand is less, the second control valve 8 can be opened a less aperture during coolant adding;With Reason, if outdoor heat exchanger 3 temperature of outgoing air and normal temperature of outgoing air difference are relatively big, illustrates that coolant demand is relatively big, during coolant adding Second control valve 8 can be adjusted to a bigger aperture or standard-sized sheet.
When detecting that outdoor heat exchanger 3 temperature of outgoing air is on the low side, illustrating that refrigerant temperature is on the low side, coolant total amount is on the high side, needs Recovery section coolant, now opens the first control valve 5, closes the second control valve 8, and when utilizing Air-conditioning Cycle, coolant is at diverse location There is the phenomenon of different pressure reduction, the part coolant in medium circulation pipeline is pressed in coolant holding vessel 7, it is achieved reclaim coolant Purpose;Temperature of outgoing air according to outdoor heat exchanger 3 and the comparison of normal temperature value, if difference is less, illustrate to need the cold of recovery Matchmaker measures less, the first control valve 5 can be opened a less aperture when reclaiming coolant;In like manner, if outdoor heat exchanger 3 air draft Temperature is relatively big with the difference of normal temperature of outgoing air, illustrates that the coolant quantity needing to reclaim is more, can control first when reclaiming coolant Valve 5 processed is adjusted to a bigger aperture or standard-sized sheet.That utilize during coolant adding is the suction general automatically of medium circulation pipeline The coolant that coolant holding vessel 7 does not has sucks medium circulation pipeline;Utilize during recovery be high pressure characteristics in medium circulation pipeline from Dynamic by refrigerant recovering to coolant holding vessel 7, the characteristic in fully utilized coolant flow process, carry out coolant adding respectively and return Receive the operation of coolant, it is not necessary to driver element is additionally set, cost-effective.
Preferably, described first branch road exports between indoor heat exchanger entrance with the outdoor expansion valve 4 in refrigeration path Pipeline connection.During refrigeration, coolant pressure reduction is relatively big, and the gaseous coolant of High Temperature High Pressure is after outdoor heat exchanger 3, outdoor expansion valve 4 Pressure reduces, and the pressure reduction at the first branch road two ends reduces, and contributes to protecting pipeline and maintaining the stable operation of air conditioning system.
Further, described first branch road being additionally provided with capillary tube 6, described first control valve 5 is passed through with coolant holding vessel 7 Described capillary tube 6 connects.When first control valve 5 is opened, the high pressure coolant in medium circulation pipeline can be poured into rapidly coolant and store In tank 7, affect system stability, pipeline can be caused certain damage, for avoiding this phenomenon to occur, increase on the first leg If capillary tube 6, coolant is during capillary tube 6, and pressure can decline, to coolant holding vessel 7 and the impact of associated pipe Less.
Further, the entrance pipe of described compressor 1 is provided with gas-liquid separator 9, the entrance of described compressor 1 and gas The outlet of liquid/gas separator 9, described second branch road connects with the entrance pipe of described gas-liquid separator 9.I.e. store from coolant Flowing to the coolant in medium circulation pipeline in tank and need to first pass through after gas-liquid separator 9 separates, the coolant of gaseous state could enter pressure Contracting machine 1, plays the purpose of protection compressor 1.
It addition, all top with coolant holding vessel 7 connects by the first branch road, the second branch road.So enter from the second branch road Coolant majority in medium circulation pipeline is gaseous state, and the liquid refrigerants entering gas-liquid separator 9 from the second branch road is less, significantly drops The low workload of gas-liquid separator 9.If need not regulate coolant total amount, open first control valve the 5, second control valve 8, by with other valves in air conditioning system with the use of, make coolant in medium circulation pipeline through this coolant holding vessel 7, so may also operate as reclaiming the effect of the refrigeration oil in coolant;Before adding new coolant, it is possible to use this coolant stores up Memory cell reclaims the refrigeration oil in old system and impurity, the coolant the most more renewed.Refrigeration oil reclaims after terminating and is stored up by coolant The refrigeration oil deposited in tank 7 emits with impurity, and new cooling media is passed through coolant holding vessel 7, to regulate in medium circulation pipeline Coolant quantity, utilizes this coolant storage element both can reclaim refrigeration oil and impurity before coolant changing, again can changed cold After matchmaker, the coolant total amount in air conditioning system is adjusted, thus carrys out coolant adding without additionally arranging container, save space, side Just operate.
Further, in refrigeration path, the pipe between outlet and the entrance of indoor heat exchanger of described outdoor expansion valve 4 Connecting on road and have liquid side stop valve 10, described first branch road exports with outdoor expansion valve 4 between stop valve 10 entrance of liquid side Pipeline connection.In refrigeration path, the outlet of described indoor heat exchanger passes sequentially through gas and surveys stop valve 11, cross valve 2 with described The entrance connection of gas-liquid separator 9, described second branch road connects with the pass road between cross valve 2 with gas-liquid separator 9 entrance.Gas Side stop valve and arranging of liquid side stop valve 10 can disconnect medium circulation pipeline when needed, conveniently keep in repair or test.
As can be seen from the above embodiments, the present invention is by connecting coolant in the medium circulation pipeline of original air conditioning system Storage element, can be adjusted the coolant total amount in medium circulation pipeline at any time, make the refrigeration of air conditioning system or heat effect Fruit keeps stable;Coolant holding vessel 7 is connected with medium circulation pipeline by two branch roads, utilizes the spy in coolant flow process Property, carry out coolant adding and the operation reclaiming coolant, it is not necessary to driver element is additionally set respectively, cost-effective;Capillary tube 6 is permissible Play cushioning effect, reduce high pressure coolant to coolant holding vessel 7 and the percussion of associated pipe, protection pipeline;Second Road connects with the entrance of gas-liquid separator 9, the coolant supplemented into first will through gas-liquid separator 9 process after could be with gaseous form Enter compressor 1, protect compressor 1;First branch road, the second branch road are all connected further with the top of coolant holding vessel 7 The function of this coolant storage element strengthened, i.e. can realize the function reclaiming the refrigeration oil in original system with impurity, again can After having changed coolant, the coolant total amount in medium circulation pipeline is adjusted, thus without independent two containers, saves Space, convenient operation.
The above is only the preferred embodiment of the present invention, it is noted that for the ordinary skill people of the art For Yuan, on the premise of without departing from the technology of the present invention principle, it is also possible to make some improvement and replacement, these improve and replace Also should be regarded as protection scope of the present invention.

Claims (8)

1. the adjustable air conditioning system of coolant quantity, it is characterised in that include cold with what air conditioning system medium circulation pipeline connected Matchmaker's storage element, described coolant storage element in air conditioning system running, to medium circulation pipeline add coolant or Reclaim the part coolant in medium circulation pipeline so that the refrigeration of air conditioning system or heating effect keep stable.
2. the adjustable air conditioning system of coolant quantity as claimed in claim 1, it is characterised in that described coolant storage element includes: Coolant holding vessel, for reclaiming the first branch road of coolant, cold for adding in medium circulation pipeline from medium circulation pipeline Second branch road of matchmaker, described first branch road, the second branch road all connect with described coolant holding vessel, and described first branch road changes with indoor Liquid side refrigerant pipeline between hot device and outdoor heat exchanger connects, and described second branch road connects with suction port of compressor pipeline;State The first control valve, the second control valve being connected with same controller it is correspondingly provided with on one branch road, the second branch road.
3. the adjustable air conditioning system of coolant quantity as claimed in claim 2, it is characterised in that described first branch road is with freezing path In outdoor expansion valve outlet with indoor heat exchanger entrance between pipeline connection.
4. the adjustable air conditioning system of coolant quantity as claimed in claim 3, it is characterised in that be additionally provided with hair on described first branch road Tubule, described first control valve is connected by described capillary tube with coolant holding vessel.
5. the adjustable air conditioning system of coolant quantity as claimed in claim 4, it is characterised in that on the entrance pipe of described compressor Being provided with gas-liquid separator, the entrance of described compressor and the outlet of gas-liquid separator, described second branch road is with described gas-liquid The entrance pipe connection of separator.
6. the adjustable air conditioning system of coolant quantity as described in any one of claim 2-5, it is characterised in that described first branch road, Second branch road all top with described coolant holding vessel connects.
7. the adjustable air conditioning system of coolant quantity as claimed in claim 6, it is characterised in that in refrigeration path, described outdoor Being connected on pipeline between outlet and the entrance of indoor heat exchanger of expansion valve and have liquid side stop valve, described first branch road is with outdoor Pipeline connection between expansion valve outlet and liquid side stop valve entrance.
8. the adjustable air conditioning system of coolant quantity as claimed in claim 7, it is characterised in that in refrigeration path, described indoor The outlet of heat exchanger passes sequentially through gas survey stop valve, cross valve connects with the entrance of described gas-liquid separator, described second branch road Connect with the pass road between cross valve with gas-liquid separator entrance.
CN201610677362.3A 2016-08-16 2016-08-16 The adjustable air conditioning system of coolant quantity Pending CN106288485A (en)

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Cited By (7)

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Publication number Priority date Publication date Assignee Title
CN107576104A (en) * 2017-09-26 2018-01-12 青岛海尔空调电子有限公司 Refrigerant regulating system and air conditioner for air conditioner
CN107796148A (en) * 2017-10-20 2018-03-13 珠海格力电器股份有限公司 Refrigerant circulation system and control method thereof
CN108332462A (en) * 2018-03-29 2018-07-27 广东纽恩泰新能源科技发展有限公司 A kind of refrigerant self-balancing device for storing liquid
CN108613329A (en) * 2018-04-28 2018-10-02 海信科龙电器股份有限公司 Variable frequency air conditioner and control method thereof
CN108716784A (en) * 2018-06-07 2018-10-30 广东美的暖通设备有限公司 Multi-line system and its control method
CN110762647A (en) * 2019-10-16 2020-02-07 珠海格力电器股份有限公司 Central air-conditioning system and control method thereof
CN114659233A (en) * 2022-03-28 2022-06-24 青岛海尔空调器有限总公司 Air conditioner and control method for air conditioner

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Application publication date: 20170104