CN203454472U - Multi-split air conditioning system and oil balance devices thereof - Google Patents
Multi-split air conditioning system and oil balance devices thereof Download PDFInfo
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- CN203454472U CN203454472U CN201320435266.XU CN201320435266U CN203454472U CN 203454472 U CN203454472 U CN 203454472U CN 201320435266 U CN201320435266 U CN 201320435266U CN 203454472 U CN203454472 U CN 203454472U
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Abstract
The utility model discloses a multi-split air conditioning system and oil balance devices of the multi-split air conditioning system. The multi-split air conditioning system comprises a plurality of air conditioning devices. Each air conditioning device comprises an indoor unit and an outdoor unit, wherein the outdoor unit comprises a parallel compressor set and one oil balance device, the oil balance device comprises an oil separator and an oil balance controller, the oil separator comprises a mixed liquor input end, a refrigerant output end, an oil backflow end and an oil balance end, an oil balance stop valve is arranged at the oil balance end, an oil balance one-way valve is arranged between the oil balance stop valve and the oil separator, one end of the oil balance controller is communicated with the parallel compressor set, and the other end of the oil balance controller is communicated with the oil balance one-way valve. When the amount of lubricating oil in a certain air conditioning device in the multi-split air conditioning system is too large, the redundant lubricating oil can be conveyed into other air conditioning devices through the oil balance devices so that the lubricating oil can be distributed among the air conditioning devices in the multi-split air conditioning system more evenly.
Description
Technical field
The utility model relates to air-conditioning technical field, particularly a kind of multi-online air-conditioning system and oil balancing unit thereof.
Background technology
Multi-online air-conditioning system is comprised of some air-conditioning equipments, can realize the independent assortment of many off-premises stations and many indoor sets.The capacity of a multi-connected machine system has ten even more than tens conventionally, multi-connected machine system pipeline is complicated, inside modules has multiple compressors, when load is different, the working order of compressor is also different, the presumable high loaded process of compressor in system and may not turning round of having, very easily occur that the distribution of each compressor chamber oil is uneven in this case, and some compressors are may lubricating oil not enough, some compressor possibility lubricating oil is too much, and this very easily causes the damage of compressor.
Existing multi-connected machine oil balancing unit pipeline is complicated with control, and in pipeline, has closed section, oil balance tube meeting booster when operating mode acute variation or other mal-conditions, and system reliability is low.
Utility model content
Main purpose of the present utility model is to provide a kind of multi-online air-conditioning system and oil balancing unit thereof, is intended to make realize between the air-conditioning equipment of multi-connected machine the dynamic equilibrium of lubricating oil.
The utility model proposes a kind of multi-online air-conditioning system, comprise some air-conditioning equipments, described in each, air-conditioning equipment includes indoor set and off-premises station, described off-premises station comprises the parallel compressor unit being comprised of some compressor parallels, and the oil balancing unit being communicated with the cross valve of described indoor set, described oil balancing unit comprises oil eliminator and oily balance controller, wherein
Reflux end and for by the oily balance end of some described air-conditioning equipment parallel connections of the oil that described oil eliminator comprises the mixed liquor input being communicated with the output of described parallel compressor unit, the refrigerant output being communicated with described cross valve, be communicated with the input of described parallel compressor unit; Described oily balance end is provided with an oily balance stop valve, is provided with an oily balance check valve to this oil balance stop valve conducting between this oil balance stop valve and described oil eliminator;
One end of described oily balance controller is communicated with the input of described parallel compressor unit, and the other end is communicated with the output of described oily balance check valve.
Preferably, described oily balance controller comprises oily static hairlet tubule and magnetic valve, and described static hairlet tubule one end is communicated with magnetic valve, and the other end is communicated with the output of oily balance check valve; Described magnetic valve one end is communicated with static hairlet tubule, and the other end is communicated with the input of parallel compressor unit.
Preferably, described oil balancing unit also comprises a unloader, the input of this unloader is communicated with the output of magnetic valve with described oily static hairlet tubule respectively, and the output of this unloader is communicated with the input of gas-liquid separator in described cross valve and air-conditioning equipment respectively;
The output of described gas-liquid separator is communicated with the input of described parallel compressor unit.
Preferably, described oily balance controller comprises electric expansion valve, and described electric expansion valve one end is communicated with the input of described parallel compressor unit, and the other end is communicated with the output of described oily balance check valve.
Preferably, described oil balancing unit also comprises a unloader, and the input of this unloader is communicated with the output of oily balance check valve, and the output of this unloader is communicated with the input of gas-liquid separator in described cross valve and air-conditioning equipment respectively;
The output of described gas-liquid separator is communicated with the input of described parallel compressor unit.
Preferably, described oil refluxes and is provided with backflow capillary between end and parallel compressor unit.
Preferably, described backflow capillary is located at each branch road of described parallel compressor unit.
The utility model further also proposes a kind of oil balancing unit, and described oil balancing unit comprises oil eliminator and oily balance controller, wherein,
Described oil eliminator comprises mixed liquor input, refrigerant output, oil backflow end and oily balance end; Described oily balance end is provided with an oily balance stop valve, is provided with an oily balance check valve to this oil balance stop valve conducting between this oil balance stop valve and described oil eliminator;
One end of described oily balance controller is communicated with the output of described oily balance check valve.
Preferably, described oily balance controller comprises oily static hairlet tubule and magnetic valve, and described static hairlet tubule one end is communicated with magnetic valve, and the other end is communicated with the output of oily balance check valve; Described magnetic valve is communicated with static hairlet tubule;
Described oil balancing unit also comprises a unloader, and one end of this unloader is communicated with the output of magnetic valve with described oily static hairlet tubule respectively.
Preferably, described oily balance controller comprises electric expansion valve, and described electric expansion valve is communicated with the output of oily balance check valve;
Described oil balancing unit also comprises a unloader, and this unloader is communicated with the output of oily balance check valve.
Technical solutions of the utility model are by adopting oil balancing unit, while making in multi-online air-conditioning system lubricating oil in indivedual air-conditioning equipments excessive, make unnecessary lubricating oil by pressure-acting, deliver in the air-conditioning equipment of other runnings in multi-online air-conditioning system, realize in multi-online air-conditioning system the distribution of lubrication oil between each air-conditioning equipment more even, reached the dynamic equilibrium of lubricating oil between the air-conditioning equipment of multi-connected machine.In addition, installing unloader additional can avoid, because the too high booster occurring of oil balancing unit internal pressure in the situations such as operating mode acute variation or severe transportation is dangerous, having improved the reliability of multi-online air-conditioning system.
Accompanying drawing explanation
Fig. 1 is the local system structural representation of the utility model multi-online air-conditioning system one embodiment;
Fig. 2 is the local system structural representation of another embodiment of the utility model multi-online air-conditioning system.
The realization of the utility model object, functional characteristics and advantage, in connection with embodiment, are described further with reference to accompanying drawing.
The specific embodiment
Below in conjunction with drawings and the specific embodiments, with regard to the technical solution of the utility model, be described further.Should be appreciated that specific embodiment described herein is only in order to explain the utility model, and be not used in restriction the utility model.
The utility model proposes a kind of multi-online air-conditioning system.
With reference to Fig. 1 or Fig. 2, Fig. 1 is the local system structural representation of the utility model multi-online air-conditioning system one embodiment; Fig. 2 is the local system structural representation of another embodiment of the utility model multi-online air-conditioning system.
In the utility model embodiment, this multi-online air-conditioning system comprises some air-conditioning equipments, and each air-conditioning equipment includes indoor set and off-premises station, and this indoor set comprises a cross valve 40 and the heat exchanger being communicated with this cross valve 40; This off-premises station comprises parallel compressor unit 30, the gas-liquid separator 80 being comprised of some compressor parallels, and the oil balancing unit being communicated with parallel compressor unit 30, gas-liquid separator 80 and cross valve 40 respectively.This oil balancing unit specifically comprises oil eliminator 10 and oily balance controller 20, this oil eliminator 10 has a mixed liquor input A, one refrigerant output B, one oil refluxes and holds C and an oily balance end D, wherein, this mixed liquor input A is connected with the output of the parallel compressor unit 30 of air-conditioning equipment, this refrigerant output B is connected with the cross valve 40 of air-conditioning equipment, this oil refluxes and holds C to be connected with the input of parallel compressor unit 30, this oil balance end D is in parallel by some air-conditioning equipments, it is connected with the oily balance end of oil balancing unit in some air-conditioning equipments.Wherein, at oily balance end D place, be provided with an oily balance stop valve 50, and between oily balance stop valve 50 and the oily balance end D of oil eliminator 10, be provided with an oily balance check valve 61 to these oil balance stop valve 50 conductings.One end of oil balance controller 20 is connected with the input of parallel compressor unit 30, and the other end is connected with the output of oily balance check valve 61.
When multi-online air-conditioning system moves, parallel compressor unit 30 is pressed into the mixed liquor of refrigerant and lubricating oil in oil eliminator 10 by mixed liquor input A, in oil eliminator 10, the mixed liquor of refrigerant and lubricating oil carries out separated, isolated refrigerant is delivered to cross valve 40 by refrigerant output B, enter cooling/heating circulation, and isolated lubricating oil is back to parallel compressor unit 30 by oil backflow end C, enter circulation next time.When the oily balance controller 20 of this branch road is opened, lubricating oil in the air-conditioning equipment of other running branch roads can be imported in parallel compressor unit 30, with make-up oil by the input of parallel compressor unit 30 by oily balance stop valve 50, the oily balance controller 20 through this branch road by pressure.Similarly, after the oily balance controller of other branch roads is opened, lubricating oil superfluous in this branch road can, by the oily balance end D of oil eliminator 10, import in the branch road that needs make-up oil by pressure through oily balance check valve 61, oily balance stop valve 50.When operation, oil balance controller 20 can, according to programme-control opening and closing, to realize the dynamic equilibrium of lubricating oil in each branch road of multi-online air-conditioning system, guarantee that air-conditioning equipment can have sufficient lubricating oil to use in the running.The distribution of lubrication oil realizing between interior each branch road of multi-online air-conditioning system is more even.
With reference to Fig. 1, Fig. 1 is the local system structural representation of the utility model multi-online air-conditioning system one embodiment.
In the present embodiment, oily balance controller 20 comprises magnetic valve 21 and oily static hairlet tubule 22; These magnetic valve 21 one end are communicated with static hairlet tubule 22, and the other end is communicated with the input of parallel compressor unit 30; Static hairlet tubule 22 one end are communicated with magnetic valve 21, and the other end is communicated with the output of oily balance check valve 61.
When the magnetic valve 21 of this branch road is opened, the lubricating oil in the air-conditioning equipment of other running branch roads can be imported in parallel compressor unit 30, with make-up oil by the input of parallel compressor unit 30 by oily balance stop valve 50, the magnetic valve 21 through this branch road by pressure.Similarly, after the magnetic valve of other branch roads is opened, lubricating oil superfluous in this branch road can, by the oily balance end D of oil eliminator 10, import in the branch road that needs make-up oil by pressure through oily balance check valve 61, static hairlet tubule 22, oily balance stop valve 50.Static hairlet tubule 22 is for carrying out throttling to the lubricating oil of effluent oil balance check valve 61.
Based on above-described embodiment, this oil balancing unit also can comprise a unloader 70, the input of this unloader 70 is communicated with the output of magnetic valve 21 with oily static hairlet tubule 22 respectively, and the output of unloader 70 is connected with the input of cross valve 40 and gas-liquid separator 80 respectively.The output of gas-liquid separator 80 is connected with the input of parallel compressor unit 30.
The operating mode acute variation of multi-online air-conditioning system operation or in the situations such as severe transportation, when parallel compressor unit 30, oil eliminator 10 and when being attached thereto pressure in logical pipeline and increasing to the opening pressure value of unloader 70, unloader 70 just can be opened off-load automatically, refrigerant and lubricating oil can be directed in gas-liquid separator 80 through unloader 70, until parallel compressor unit 30, oil eliminator 10 and be attached thereto pressure decreased in logical pipeline to after below unloader close value, unloader 70 can cut out automatically.By unloader 70, can avoid, because the too high booster occurring of oil balancing unit internal pressure in the situations such as operating mode acute variation or severe transportation is dangerous, having improved the reliability of oil balancing unit.
With reference to Fig. 2, Fig. 2 is the local system structural representation of another embodiment of the utility model multi-online air-conditioning system.
In the present embodiment, oily balance controller 20 comprises electric expansion valve 23; These electric expansion valve 23 one end are communicated with the input of parallel compressor unit 30, and the other end is communicated with the output of oily balance check valve 61.
When the electric expansion valve 23 of this branch road is opened, lubricating oil in the air-conditioning equipment of other running branch roads can be imported in parallel compressor unit 30, with make-up oil by the input of parallel compressor unit 30 by oily balance stop valve 50, the electric expansion valve 23 through this branch road by pressure.Similarly, after the electric expansion valve of other branch roads is opened, lubricating oil superfluous in this branch road can, by the oily balance end D of oil eliminator 10, import in the branch road that needs make-up oil by pressure through oily balance check valve 61, oily balance stop valve 50.Electric expansion valve 23 both can play the effect of the opening and closing of control piper, can under different operation conditions, play the effect of equal oily flow being played to control and regulation by different outer machines again.
Based on above-described embodiment, this oil balancing unit also can comprise a unloader 70, and the input of this unloader 70 is communicated with the output of oily balance check valve 61 respectively, and the output of unloader 70 is connected with the input of cross valve 40 and gas-liquid separator 80 respectively.The output of gas-liquid separator 80 is connected with the input of parallel compressor unit 30.
The operating mode acute variation of multi-online air-conditioning system operation or in the situations such as severe transportation, when parallel compressor unit 30, oil eliminator 10 and when being attached thereto pressure in logical pipeline and increasing to the opening pressure value of unloader 70, unloader 70 just can be opened off-load automatically, refrigerant and lubricating oil can be directed in gas-liquid separator 80 through unloader 70, until parallel compressor unit 30, oil eliminator 10 and be attached thereto pressure decreased in logical pipeline to after below unloader close value, unloader 70 can cut out automatically.By unloader 70, can avoid, because the too high booster occurring of oil balancing unit internal pressure in the situations such as operating mode acute variation or severe transportation is dangerous, having improved the reliability of oil balancing unit.
Based on above-mentioned all embodiment, the oil of oil eliminator 10 refluxes and is provided with backflow capillary 90 between end C and parallel compressor unit 30, and this backflow capillary 90 is for carrying out throttling to being back to the lubricating oil of parallel compressor unit 30.
In the above-described embodiments, the quantity of backflow capillary 90 is identical with the quantity of compressor in parallel compressor unit 30, this backflow capillary 90 is located in each branch road of parallel compressor unit 30, the corresponding compressor of each backflow capillary 90, to reach better restriction effect, and make work separately separate, guaranteed the stability of oil balancing unit.
Technical solutions of the utility model are by adopting oil balancing unit, while making in multi-online air-conditioning system lubricating oil in indivedual air-conditioning equipments excessive, make unnecessary lubricating oil by pressure-acting, deliver in the air-conditioning equipment of other runnings in multi-online air-conditioning system, realize in multi-online air-conditioning system the distribution of lubrication oil between each air-conditioning equipment more even, reached the dynamic equilibrium of lubricating oil between the air-conditioning equipment of multi-connected machine.In addition, installing unloader additional can avoid, because the too high booster occurring of oil balancing unit internal pressure in the situations such as operating mode acute variation or severe transportation is dangerous, having improved the reliability of multi-online air-conditioning system.
The utility model further also proposes a kind of oil balancing unit, comprises oil eliminator and oily balance controller, and this oil eliminator comprises mixed liquor input, refrigerant output, oil backflow end and oily balance end; Oil balance end is provided with an oily balance stop valve, is provided with an oily balance check valve to this oil balance stop valve conducting between this oil balance stop valve and described oil eliminator; One end of oil balance controller is communicated with the output of described oily balance check valve.The further concrete structure of this oil balancing unit, with reference to above-described embodiment, does not repeat them here.
The foregoing is only preferred embodiment of the present utility model; not thereby limit the scope of the claims of the present utility model; every equivalent structure transformation that utilizes the utility model description and accompanying drawing content to do; or be directly or indirectly used in other relevant technical fields, be all in like manner included in scope of patent protection of the present utility model.
Claims (10)
1. a multi-online air-conditioning system, comprise some air-conditioning equipments, described in each, air-conditioning equipment includes indoor set and off-premises station, described off-premises station comprises the parallel compressor unit being comprised of some compressor parallels, and the oil balancing unit being communicated with the cross valve of described indoor set, it is characterized in that, described oil balancing unit comprises oil eliminator and oily balance controller, wherein
Reflux end and for by the oily balance end of some described air-conditioning equipment parallel connections of the oil that described oil eliminator comprises the mixed liquor input being communicated with the output of described parallel compressor unit, the refrigerant output being communicated with described cross valve, be communicated with the input of described parallel compressor unit; Described oily balance end is provided with an oily balance stop valve, is provided with an oily balance check valve to this oil balance stop valve conducting between this oil balance stop valve and described oil eliminator;
One end of described oily balance controller is communicated with the input of described parallel compressor unit, and the other end is communicated with the output of described oily balance check valve.
2. multi-online air-conditioning system as claimed in claim 1, is characterized in that, described oily balance controller comprises oily static hairlet tubule and magnetic valve, and described static hairlet tubule one end is communicated with magnetic valve, and the other end is communicated with the output of oily balance check valve; Described magnetic valve one end is communicated with static hairlet tubule, and the other end is communicated with the input of parallel compressor unit.
3. multi-online air-conditioning system as claimed in claim 2, it is characterized in that, described oil balancing unit also comprises a unloader, the input of this unloader is communicated with the output of magnetic valve with described oily static hairlet tubule respectively, and the output of this unloader is communicated with the input of gas-liquid separator in described cross valve and air-conditioning equipment respectively;
The output of described gas-liquid separator is communicated with the input of described parallel compressor unit.
4. multi-online air-conditioning system as claimed in claim 1, it is characterized in that, described oily balance controller comprises electric expansion valve, and described electric expansion valve one end is communicated with the input of described parallel compressor unit, and the other end is communicated with the output of described oily balance check valve.
5. multi-online air-conditioning system as claimed in claim 4, it is characterized in that, described oil balancing unit also comprises a unloader, the input of this unloader is communicated with the output of oily balance check valve, and the output of this unloader is communicated with the input of gas-liquid separator in described cross valve and air-conditioning equipment respectively;
The output of described gas-liquid separator is communicated with the input of described parallel compressor unit.
6. the multi-online air-conditioning system as described in claim 3 or 5, is characterized in that, described oil refluxes and is provided with backflow capillary between end and parallel compressor unit.
7. multi-online air-conditioning system as claimed in claim 6, is characterized in that, described backflow capillary is located at each branch road of described parallel compressor unit.
8. an oil balancing unit, is characterized in that, described oil balancing unit comprises oil eliminator and oily balance controller, wherein,
Described oil eliminator comprises mixed liquor input, refrigerant output, oil backflow end and oily balance end; Described oily balance end is provided with an oily balance stop valve, is provided with an oily balance check valve to this oil balance stop valve conducting between this oil balance stop valve and described oil eliminator;
One end of described oily balance controller is communicated with the output of described oily balance check valve.
9. oil balancing unit as claimed in claim 8, is characterized in that, described oily balance controller comprises oily static hairlet tubule and magnetic valve, and described static hairlet tubule one end is communicated with magnetic valve, and the other end is communicated with the output of oily balance check valve; Described magnetic valve is communicated with static hairlet tubule;
Described oil balancing unit also comprises a unloader, and one end of this unloader is communicated with the output of magnetic valve with described oily static hairlet tubule respectively.
10. oil balancing unit as claimed in claim 8, is characterized in that, described oily balance controller comprises electric expansion valve, and described electric expansion valve is communicated with the output of oily balance check valve;
Described oil balancing unit also comprises a unloader, and this unloader is communicated with the output of oily balance check valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320435266.XU CN203454472U (en) | 2012-07-31 | 2013-07-19 | Multi-split air conditioning system and oil balance devices thereof |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210270414.7 | 2012-07-31 | ||
| CN 201210270414 CN102798251A (en) | 2012-07-31 | 2012-07-31 | Oil balancing device and multi-split air conditioning system |
| CN201320435266.XU CN203454472U (en) | 2012-07-31 | 2013-07-19 | Multi-split air conditioning system and oil balance devices thereof |
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| CN203454472U true CN203454472U (en) | 2014-02-26 |
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| CN 201210270414 Pending CN102798251A (en) | 2012-07-31 | 2012-07-31 | Oil balancing device and multi-split air conditioning system |
| CN201320435266.XU Expired - Fee Related CN203454472U (en) | 2012-07-31 | 2013-07-19 | Multi-split air conditioning system and oil balance devices thereof |
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| CN 201210270414 Pending CN102798251A (en) | 2012-07-31 | 2012-07-31 | Oil balancing device and multi-split air conditioning system |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103982951A (en) * | 2014-05-06 | 2014-08-13 | 广东美的暖通设备有限公司 | Multi-split air conditioning outdoor unit and control method thereof |
| CN104236171A (en) * | 2014-09-30 | 2014-12-24 | 广东志高暖通设备股份有限公司 | VRF air conditioning system, oil balancing device of VRF air conditioning system and control method of VRF air conditioning system |
| CN104315756A (en) * | 2014-09-30 | 2015-01-28 | 广东志高暖通设备股份有限公司 | VRV (variable refrigerant volume) air conditioning system and oil balance device and control method thereof |
| CN104457031A (en) * | 2014-09-30 | 2015-03-25 | 广东志高暖通设备股份有限公司 | Multi-split air conditioning system and oil balancing devices and control method of multi-split air conditioning system |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104214925B (en) * | 2013-05-29 | 2016-12-28 | 广东美的暖通设备有限公司 | Air conditioning system |
| CN103776119A (en) * | 2014-02-21 | 2014-05-07 | 广东志高暖通设备股份有限公司 | Multi-split air conditioner heat pump system, refrigeration control method thereof and heating control method thereof |
| CN106884974B (en) * | 2017-04-06 | 2023-11-14 | 国电联合动力技术有限公司 | Wind turbine generator gearbox lubrication system and control method thereof |
-
2012
- 2012-07-31 CN CN 201210270414 patent/CN102798251A/en active Pending
-
2013
- 2013-07-19 CN CN201320435266.XU patent/CN203454472U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103982951A (en) * | 2014-05-06 | 2014-08-13 | 广东美的暖通设备有限公司 | Multi-split air conditioning outdoor unit and control method thereof |
| CN103982951B (en) * | 2014-05-06 | 2016-08-31 | 广东美的暖通设备有限公司 | Multi-gang air-conditioner off-premises station and control method thereof |
| CN104236171A (en) * | 2014-09-30 | 2014-12-24 | 广东志高暖通设备股份有限公司 | VRF air conditioning system, oil balancing device of VRF air conditioning system and control method of VRF air conditioning system |
| CN104315756A (en) * | 2014-09-30 | 2015-01-28 | 广东志高暖通设备股份有限公司 | VRV (variable refrigerant volume) air conditioning system and oil balance device and control method thereof |
| CN104457031A (en) * | 2014-09-30 | 2015-03-25 | 广东志高暖通设备股份有限公司 | Multi-split air conditioning system and oil balancing devices and control method of multi-split air conditioning system |
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| CN102798251A (en) | 2012-11-28 |
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