CN204693914U - Multiple stage air-conditioner outdoor unit parallel running system - Google Patents
Multiple stage air-conditioner outdoor unit parallel running system Download PDFInfo
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- CN204693914U CN204693914U CN201520338062.3U CN201520338062U CN204693914U CN 204693914 U CN204693914 U CN 204693914U CN 201520338062 U CN201520338062 U CN 201520338062U CN 204693914 U CN204693914 U CN 204693914U
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Abstract
This application discloses a kind of multiple stage air-conditioner outdoor unit parallel running system, comprise at least two outdoor units and the gas main and the main liquid tube that are connected each outdoor unit, the outdoor unit of every platform comprises: compressor, check valve, from cross valve, main cross valve and outdoor unit heat exchanger.In the multiple stage air-conditioner outdoor unit parallel running system that the utility model provides, by main cross valve and cooperatively interacting from cross valve, when carrying out system defrost operation, a wherein outdoor unit can be selected to defrost in turn, the compressor of this outdoor unit is only needed to close, control main cross valve and from cross valve electric and off-position, just independent defrosting can be carried out to this outdoor unit, and other does not carry out the outdoor unit that defrosts, normally can carry out common heating operation, indoor set heat supply can not be broken, thus improves the comfort level of user.
Description
Technical field
The utility model relates to air-conditioning system technical field, particularly a kind of multiple stage air-conditioner outdoor unit parallel running system.
Background technology
The parallel running of multiple stage air-conditioner outdoor unit is convergeed to by the tracheae of each air-conditioning system in a gas main, each indoor set is connected respectively to again after converging, similarly, the liquid manifold of each air-conditioning system is incorporated in a main liquid tube, is connected respectively to each indoor set again after converging.
Each air-conditioning system of existing multiple stage air-conditioner outdoor unit parallel running system all mainly comprises a compressor, cross valve, an indoor set and an outdoor unit heat exchanger.Be described for two air-conditioner outdoor unit parallel connections, as shown in Figure 1, when heating, two air-conditioning systems work simultaneously, refrigerant is successively through compressor 01, cross valve 02, gas main 04, indoor set 06, main liquid tube 05, outdoor unit heat exchanger 03, cross valve 02, finally get back to compressor 01, complete one and heat circulation.When off-premises station needs defrost, all off-premises stations need be carried out defrost simultaneously, cause indoor set for thermal break like this, have a strong impact on the comfort level of user.
In sum, how to solve defrost while that multiple stage air-conditioner outdoor unit parallel running system can only being carried out, cause indoor set for thermal break, affect the problem of users'comfort, become those skilled in the art's problem demanding prompt solution.
Utility model content
In view of this, the purpose of this utility model is to provide a kind of multiple stage air-conditioner outdoor unit parallel running system, carries out defrost in turn to realize multiple stage air-conditioner outdoor unit, avoids indoor set for thermal break, improves the comfort level of user.
For achieving the above object, the utility model provides following technical scheme:
A kind of multiple stage air-conditioner outdoor unit parallel running system, comprise the outdoor unit of n platform and the gas main and the main liquid tube that are connected outdoor unit described in each, n >=2, described in every platform, outdoor unit comprises:
Compressor;
Check valve, its import is connected with the outlet of described compressor;
From cross valve, described from the D mouth of cross valve and the outlet of described check valve, the described E mouth from cross valve ends, and the described C mouth from cross valve is communicated with described gas main, or the described C mouth from cross valve ends, and the described E mouth from cross valve is communicated with described gas main;
Main cross valve, the D mouth of described main cross valve and the outlet of described check valve, the S mouth of described main cross valve and the inlet communication of described compressor;
Outdoor unit heat exchanger, the E mouth cut-off of described main cross valve, two ports of described outdoor unit heat exchanger are communicated with described main liquid tube with the C mouth of described main cross valve respectively, or the C mouth cut-off of described main cross valve, two ports of described outdoor unit heat exchanger are communicated with described main liquid tube with the E mouth of described main cross valve respectively.
Preferably, in above-mentioned multiple stage air-conditioner outdoor unit parallel running system, the outdoor fan being arranged on described outdoor unit heat exchanger outside is also comprised.
Preferably, in above-mentioned multiple stage air-conditioner outdoor unit parallel running system, described in every platform, outdoor unit also comprises choke valve, is communicated with between described outdoor unit heat exchanger with described main liquid tube by described choke valve.
Preferably, in above-mentioned multiple stage air-conditioner outdoor unit parallel running system, described choke valve is electric expansion valve or heating power expansion valve.
Preferably, in above-mentioned multiple stage air-conditioner outdoor unit parallel running system, described in every platform, the described compressor of outdoor unit is at least 1.
Compared with prior art, the beneficial effects of the utility model are:
In the multiple stage air-conditioner outdoor unit parallel running system that the utility model provides, by main cross valve and cooperatively interacting from cross valve, when carrying out system defrost operation, a wherein outdoor unit can be selected to defrost in turn, the compressor of this outdoor unit is only needed to close, control main cross valve and from cross valve electric and off-position, just independent defrosting can be carried out to this outdoor unit, and other does not carry out the outdoor unit that defrosts, normally can carry out common heating operation, indoor set heat supply can not be broken, thus improves the comfort level of user.
Accompanying drawing explanation
In order to be illustrated more clearly in the utility model embodiment or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only embodiment of the present utility model, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to the accompanying drawing provided.
Fig. 1 is the connection diagram of a kind of multiple stage air-conditioner outdoor unit parallel running system of the prior art;
The connection diagram of the first multiple stage air-conditioner outdoor unit parallel running system that Fig. 2 provides for the utility model embodiment;
The connection diagram of the second multiple stage air-conditioner outdoor unit parallel running system that Fig. 3 provides for the utility model embodiment;
The connection diagram of the third multiple stage air-conditioner outdoor unit parallel running system that Fig. 4 provides for the utility model embodiment;
The connection diagram of the 4th kind of multiple stage air-conditioner outdoor unit parallel running system that Fig. 5 provides for the utility model embodiment;
In Fig. 1-Fig. 5,01 be compressor, 02 be cross valve, 03 be outdoor unit heat exchanger, 04 be gas main, 05 be main liquid tube, 06 for indoor set;
1 being compressor, 2 being check valve, 3 being outdoor unit heat exchanger for being main cross valve, 5 from cross valve, 4,6 be outdoor fan, 7 be choke valve, 8 be gas main, 9 be main liquid tube, 10 for indoor set.
Detailed description of the invention
Core of the present utility model there is provided a kind of multiple stage air-conditioner outdoor unit parallel running system, can realize multiple stage air-conditioner outdoor unit and carry out defrost in turn, avoids indoor set for thermal break, improves the comfort level of user.
Below in conjunction with the accompanying drawing in the utility model embodiment, be clearly and completely described the technical scheme in the utility model embodiment, obviously, described embodiment is only the utility model part embodiment, instead of whole embodiments.Based on the embodiment in the utility model, those of ordinary skill in the art are not making the every other embodiment obtained under creative work prerequisite, all belong to the scope of the utility model protection.
It should be noted that cross valve has D mouth, C mouth, S mouth and E mouth, D mouth and other three mouths lay respectively at the both sides of cross valve, C mouth, S mouth and E mouth are by dividing the homonymy being listed in cross valve in proper order, move control S mouth by the spool of cross valve to communicate with C mouth or E mouth, under normal circumstances, when cross valve obtains electric, the D mouth of cross valve is communicated with E mouth, C mouth is communicated with S mouth, and when cross valve power-off, the D mouth of cross valve is communicated with C mouth, E mouth is communicated with S mouth, therefore according to the difference of the connected mode of the interface of cross valve, correspondingly control obtaining of cross valve electric also not identical with the situation of power-off, the connected mode of cross valve can illustrate in the examples below.
The utility model example 1 provides a kind of multiple stage air-conditioner outdoor unit parallel running system, as shown in Figure 2, comprise the outdoor unit of n platform and the gas main 8 and the main liquid tube 9 that are connected each outdoor unit, tracheae and the liquid pipe of the outdoor unit of every platform converge in gas main 8 and main liquid tube 9 respectively, gas main 8 and main liquid tube 9 are connected with each indoor set 10 more respectively, n >=2, namely at least comprise two off-premises station sets in parallel operation; Every platform is outdoor, and unit comprises compressor 1, check valve 2, from cross valve 3, main cross valve 4 and outdoor unit heat exchanger 5, wherein, the import of check valve 2 is connected with the outlet of compressor 1, and refrigerant can only flow to check valve 2 from compressor 1; In the present embodiment 1, from the D mouth of cross valve 3 and the outlet of check valve 2, end from the E mouth of cross valve 3, namely E mouth is obstructed, and is communicated with from the C mouth of cross valve 3 with gas main 8; The D mouth of main cross valve 4 and the outlet of check valve 2, the E mouth cut-off of main cross valve 4, namely E mouth is obstructed, the S mouth of main cross valve 4 and the inlet communication of compressor 1; Two ports of outdoor unit heat exchanger 5 are communicated with main liquid tube 9 with the C mouth of main cross valve 4 respectively.
The operation principle of above-mentioned multiple stage air-conditioner outdoor unit parallel running system is:
As shown in Figure 2, when system carries out common heating, the main cross valve 4 of the outdoor unit of every platform all electric, from the equal power-off of cross valve 3, namely the D mouth of main cross valve 4 is communicated with E mouth, and C mouth is communicated with S mouth, and be communicated with from the D mouth of cross valve 3 with C mouth, E mouth is communicated with S mouth.Refrigerant exports from compressor 1 and flows out, successively through check valve 2, the D mouth from cross valve 3, the C mouth from cross valve 3, gas main 8, indoor set 10, main liquid tube 9, outdoor unit heat exchanger 5, the C mouth of main cross valve 4 and the S mouth of main cross valve 4, finally return compressor 1 from compressor 1 import, the condensation heat release in indoor set 10 of this process refrigerant, completes common heating.
When system defrosts, a wherein outdoor unit can be selected to defrost in turn, then this outdoor unit main cross valve 4 and be all in off-position from cross valve 3, namely main cross valve 4 is communicated with C mouth with the D mouth from cross valve 3, E mouth is communicated with S mouth, and the compressor 1 of this outdoor unit is out of service, and other main cross valve 4 not carrying out the outdoor unit defrosted is with identical with state during common heating from cross valve 3.The hot refrigerant of a part that the air-conditioner set not carrying out defrost is discharged enters just in the outdoor unit of defrost by gas main 8, entered by the C mouth from cross valve 3, pass through the D mouth from cross valve 3 successively, the D mouth of main cross valve 4, C mouth and the outdoor unit heat exchanger 5 of main cross valve 4 enter main liquid tube 9, flowing to other after mixing with the refrigerant carrying out heating does not carry out in the outdoor unit of defrost, in this process, the heat release in this outdoor unit heat exchanger 5 of hot refrigerant, frost on outdoor unit heat exchanger 5 is melted, complete the defrost operation of the outer unit of single chamber, in turn defrost operation is carried out to each outdoor unit successively by this process, all the other outdoor units carry out common heating as usual, indoor set 10 heat supply is not interrupted, thus improve the comfort level of user.
In example 2, multiple stage air-conditioner outdoor unit parallel running system can also change the connected mode of main cross valve 4 and the interface from cross valve 3, as shown in Figure 3, if by from the D mouth of cross valve 3 and the outlet of check valve 2, end from the C mouth of cross valve 3, namely C mouth is obstructed, and is communicated with from the E mouth of cross valve 3 with gas main 8; The D mouth of main cross valve 4 and the outlet of check valve 2, the C mouth cut-off of main cross valve 4, namely C mouth is obstructed, the S mouth of main cross valve 4 and the inlet communication of compressor 1; Two ports of outdoor unit heat exchanger 5 are communicated with main liquid tube 9 with the E mouth of main cross valve 4 respectively, and remaining part connects constant.Then the operation principle of system is as follows:
As shown in Figure 3, when carrying out common heating, main cross valve 4 all power-off of the outdoor unit of every platform, from cross valve 3 all electric, namely the D mouth of main cross valve 4 is communicated with C mouth, and E mouth is communicated with S mouth, and be communicated with from the D mouth of cross valve 3 with E mouth, S mouth is communicated with C mouth.Refrigerant exports from compressor 1 and flows out, successively through check valve 2, the D mouth from cross valve 3, the E mouth from cross valve 3, gas main 8, indoor set 10, main liquid tube 9, outdoor unit heat exchanger 5, the E mouth of main cross valve 4 and the S mouth of main cross valve 4, finally return compressor from compressor 1 import, the condensation heat release in indoor set of this process refrigerant, completes common heating.
When carrying out system defrosting, a wherein outdoor unit is selected to defrost in turn, then this outdoor unit main cross valve 4 and be all in obtain electricity condition from cross valve 3, namely main cross valve 4 is communicated with E mouth with the D mouth from cross valve 3, C mouth is communicated with S mouth, and the compressor of this outdoor unit is out of service, and other main cross valve 4 not carrying out the outdoor unit defrosted is with identical with state during common heating from cross valve 3.The hot refrigerant of a part that the air-conditioner set not carrying out defrost is discharged enters just in the outdoor unit of defrost by gas main 8, entered by the E mouth from cross valve 3, pass through the D mouth from cross valve 3 successively, the D mouth of main cross valve 4, E mouth and the outdoor unit heat exchanger 5 of main cross valve 4 enter main liquid tube 9, flowing to other after mixing with the refrigerant carrying out heating does not carry out in the outdoor unit of defrost, in this process, the heat release in this outdoor unit heat exchanger of hot refrigerant, frost on outdoor unit heat exchanger 5 is melted, complete the defrost operation of the outer unit of single chamber, in turn defrost operation is carried out to each outdoor unit successively by this process, all the other outdoor units carry out common heating as usual, indoor set 10 heat supply is not interrupted.
In embodiment 3, as shown in Figure 4, if by from the D mouth of cross valve 3 and the outlet of check valve 2, end from the C mouth of cross valve 3, namely C mouth is obstructed, and is communicated with from the E mouth of cross valve 3 with gas main 8; The D mouth of main cross valve 4 and the outlet of check valve 2, the E mouth cut-off of main cross valve 4, namely E mouth is obstructed, the S mouth of main cross valve 4 and the inlet communication of compressor 1; Two ports of outdoor unit heat exchanger 2 are communicated with main liquid tube 9 with the C mouth of main cross valve 4 respectively, and remaining part connects constant, then the operation principle of system is as follows:
When carrying out common heating, as long as make the main cross valve 4 of the outdoor unit of every platform and from cross valve 3 all electric, namely the D mouth of main cross valve 4 is communicated with E mouth, C mouth is communicated with S mouth, be communicated with from the D mouth of cross valve 3 with E mouth, S mouth is communicated with C mouth, just can complete heating, detailed process does not repeat them here, and please refer to the description of Fig. 4 and above embodiment.
When carrying out system defrosting, an outdoor unit is selected to defrost in turn, then the main cross valve 4 of this outdoor unit is in off-position, be in obtain electricity condition from cross valve 3, namely the D mouth of main cross valve 4 is communicated with C mouth, and E mouth is communicated with S mouth, be communicated with from the D mouth of cross valve 3 with E mouth, C mouth is communicated with S mouth, and the compressor 1 of this outdoor unit is out of service, and other main cross valve 4 not carrying out the outdoor unit defrosted is with identical with state during common heating from cross valve 3.Carrying out practically process please refer to the description of Fig. 4 and above embodiment.
As shown in Figure 5, in example 4, if by from the D mouth of cross valve 3 and the outlet of check valve 2, end from the E mouth of cross valve 3, namely E mouth is obstructed, and is communicated with from the C mouth of cross valve 3 with gas main 8; The D mouth of main cross valve 4 and the outlet of check valve 2, the C mouth cut-off of main cross valve 4, namely C mouth is obstructed, the S mouth of main cross valve 4 and the inlet communication of compressor 1; Two ports of outdoor unit heat exchanger 5 are communicated with main liquid tube 9 with the E mouth of main cross valve 4 respectively, and remaining part connects constant, then the operation principle of system is as follows:
When carrying out common heating, as long as make the outdoor unit of every platform main cross valve 4 and from cross valve 3 all power-off, namely the D mouth of main cross valve 4 is communicated with C mouth, E mouth is communicated with S mouth, be communicated with from the D mouth of cross valve 3 with C mouth, S mouth is communicated with E mouth, just can complete heating, detailed process does not repeat them here, and please refer to the description of Fig. 5 and above embodiment.
When carrying out system defrosting, an outdoor unit is selected to defrost in turn, then the main cross valve 4 of this outdoor unit is in obtain electricity condition, be in off-position from cross valve 3, namely the D mouth of main cross valve 4 is communicated with E mouth, and C mouth is communicated with S mouth, be communicated with from the D mouth of cross valve 3 with C mouth, E mouth is communicated with S mouth, and the compressor 1 of this outdoor unit is out of service, and other main cross valve 4 not carrying out the outdoor unit defrosted is with identical with state during common heating from cross valve 3.Carrying out practically process please refer to the description of Fig. 5 and above embodiment.
Further optimization, as Figure 2-Figure 5, in the present embodiment, the outside of outdoor unit heat exchanger 5 is also provided with outdoor fan 6, for air-supply, improves the heat exchange efficiency of outdoor unit heat exchanger 5, when one of them outdoor unit carries out defrost operation, close the outdoor fan 6 of this outdoor unit.
Further, as Figure 2-Figure 5, the choke valve 7 between machine heat exchanger 5 disposed in the outdoor and main liquid tube 9 is also comprised at the outdoor unit of every platform, outdoor unit heat exchanger 5 is communicated with main liquid tube 9 by choke valve 7, the object arranging choke valve 7 is the flow in order to control refrigerant, thus the normal operation of control system better.
As optimization, choke valve 7 adopts electric expansion valve or heating power expansion valve, certainly, can also adopt stop valve.
In the present embodiment, the compressor 1 of the outdoor unit of every platform is at least 1, can be Liang Tai, three or more platforms, determines, be not specifically limited at this according to the power demand of system.
In this description, each embodiment adopts the mode of going forward one by one to describe, and what each embodiment stressed is the difference with other embodiments, between each embodiment identical similar portion mutually see.
To the above-mentioned explanation of the disclosed embodiments, professional and technical personnel in the field are realized or uses the utility model.To be apparent for those skilled in the art to the multiple amendment of these embodiments, General Principle as defined herein when not departing from spirit or scope of the present utility model, can realize in other embodiments.Therefore, the utility model can not be restricted to these embodiments shown in this article, but will meet the widest scope consistent with principle disclosed herein and features of novelty.
Claims (5)
1. a multiple stage air-conditioner outdoor unit parallel running system, comprise the outdoor unit of n platform and the gas main (8) and the main liquid tube (9) that are connected outdoor unit described in each, n >=2, is characterized in that, described in every platform, outdoor unit comprises:
Compressor (1);
Check valve (2), its import is connected with the outlet of described compressor (1);
From cross valve (3), the outlet of the described D mouth from cross valve (3) and described check valve (2), the described cut-off of the E mouth from cross valve (3), and the described C mouth from cross valve (3) is communicated with described gas main (8), or the described cut-off of the C mouth from cross valve (3), and the described E mouth from cross valve (3) is communicated with described gas main (8);
Main cross valve (4), the D mouth of described main cross valve (4) and the outlet of described check valve (2), the S mouth of described main cross valve (4) and the inlet communication of described compressor (1);
Outdoor unit heat exchanger (5), the E mouth cut-off of described main cross valve (4), two ports of described outdoor unit heat exchanger (5) are communicated with described main liquid tube (9) with the C mouth of described main cross valve (4) respectively, or the C mouth cut-off of described main cross valve (4), two ports of described outdoor unit heat exchanger (5) are communicated with described main liquid tube (9) with the E mouth of described main cross valve (4) respectively.
2. multiple stage air-conditioner outdoor unit parallel running system according to claim 1, is characterized in that, also comprises and is arranged on the outside outdoor fan (6) of described outdoor unit heat exchanger (5).
3. multiple stage air-conditioner outdoor unit parallel running system according to claim 1, it is characterized in that, outdoor unit described in every platform also comprises choke valve (7), is communicated with between described outdoor unit heat exchanger (5) with described main liquid tube (9) by described choke valve (7).
4. multiple stage air-conditioner outdoor unit parallel running system according to claim 3, is characterized in that, described choke valve (7) is electric expansion valve or heating power expansion valve.
5. multiple stage air-conditioner outdoor unit parallel running system according to claim 1, is characterized in that, the described compressor (1) of outdoor unit described in every platform is at least 1.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201520338062.3U CN204693914U (en) | 2015-05-22 | 2015-05-22 | Multiple stage air-conditioner outdoor unit parallel running system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201520338062.3U CN204693914U (en) | 2015-05-22 | 2015-05-22 | Multiple stage air-conditioner outdoor unit parallel running system |
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| CN204693914U true CN204693914U (en) | 2015-10-07 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106288546A (en) * | 2016-09-09 | 2017-01-04 | 珠海格力电器股份有限公司 | A kind of Modular multi-connected air conditioner system and defrosting control method thereof |
| CN106969428A (en) * | 2017-05-09 | 2017-07-21 | 广东美的暖通设备有限公司 | Multi-connected air conditioner device |
| CN109708216A (en) * | 2018-12-06 | 2019-05-03 | 珠海格力电器股份有限公司 | Modular multi-connected air conditioner system and its control method |
-
2015
- 2015-05-22 CN CN201520338062.3U patent/CN204693914U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106288546A (en) * | 2016-09-09 | 2017-01-04 | 珠海格力电器股份有限公司 | A kind of Modular multi-connected air conditioner system and defrosting control method thereof |
| CN106288546B (en) * | 2016-09-09 | 2022-04-01 | 珠海格力电器股份有限公司 | Modular multi-split air conditioning system and defrosting control method thereof |
| CN106969428A (en) * | 2017-05-09 | 2017-07-21 | 广东美的暖通设备有限公司 | Multi-connected air conditioner device |
| CN109708216A (en) * | 2018-12-06 | 2019-05-03 | 珠海格力电器股份有限公司 | Modular multi-connected air conditioner system and its control method |
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