CN203489530U - Air conditioning system - Google Patents
Air conditioning system Download PDFInfo
- Publication number
- CN203489530U CN203489530U CN201320523094.1U CN201320523094U CN203489530U CN 203489530 U CN203489530 U CN 203489530U CN 201320523094 U CN201320523094 U CN 201320523094U CN 203489530 U CN203489530 U CN 203489530U
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- Prior art keywords
- pipeline
- air
- conditioning system
- compressor
- oil eliminator
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- 238000004378 air conditioning Methods 0.000 title claims abstract description 37
- 230000008676 import Effects 0.000 claims description 21
- 239000007788 liquid Substances 0.000 claims description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 3
- 239000000498 cooling water Substances 0.000 claims description 2
- 238000001816 cooling Methods 0.000 abstract description 5
- 230000007774 longterm Effects 0.000 abstract description 4
- 239000000446 fuel Substances 0.000 abstract 1
- 239000003921 oil Substances 0.000 description 25
- 239000007789 gas Substances 0.000 description 18
- 230000033558 biomineral tissue development Effects 0.000 description 3
- 238000005057 refrigeration Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000002427 irreversible effect Effects 0.000 description 1
- 239000003507 refrigerant Substances 0.000 description 1
- 239000010729 system oil Substances 0.000 description 1
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- Compressors, Vaccum Pumps And Other Relevant Systems (AREA)
Abstract
The utility model discloses an air conditioning system, which comprises a compressor, a back pressure valve, a condenser, a throttling device and an evaporator, wherein an exhaust port of the compressor is communicated with an inlet of the back pressure valve, an outlet of the back pressure valve is connected with one end of the condenser through an exhaust pipeline, the other end of the condenser is connected with one end of the throttling device, the other end of the throttling device is connected with one end of the evaporator, and the other end of the evaporator is connected with a return air port of the compressor through an air suction pipeline; the back pressure valve is provided with an external balance port, the external balance port is respectively connected with the air suction pipeline and the exhaust pipeline through a first pipeline and a second pipeline, and the first pipeline and the second pipeline are respectively provided with a first control valve and a second control valve. The utility model discloses an air conditioning system can make the system establish sufficient height low pressure differential rapidly, and guarantee compressor fuel feeding, cooling are smooth and easy, can avoid the compressor reversal again, the long-term safety and stability's of guarantee refrigerating system operation.
Description
Technical field
The utility model relates to air-conditioning technical field, particularly relates to a kind of air-conditioning system.
Background technology
In order to meet the needs of productive life, the handpiece Water Chilling Units of using at present, generally all will move throughout the year.Unit is often because the reasons such as weather conditions meet with cold start-up.Take Worm type water-cooled handpiece Water Chilling Units as example, and during cold start-up, system high pressure end pressure does not increase, and height pressure reduction is lower, and compressor loads is very difficult, usually causes helical-lobe compressor for shortage of oil.For head it off, some air-conditioning systems guarantee with counterbalance valve the pressure reduction that system made is enough.But current counterbalance valve control mode has a significant drawback: compressor shutdown moment, height pressure reduction is enough to keep counterbalance valve in opening, makes the HTHP exhaust gas recirculation of going to condenser to compressor, causes the reversion of compressor.Long this circulation can cause compressor damage serious, thereby refrigeration system is produced to irreversible consequence.
Summary of the invention
For above-mentioned prior art present situation, technical problem to be solved in the utility model is, a kind of air-conditioning system is provided, it can make system set up rapidly enough height pressure reduction, ensure compressor oil-supplying, cooling smooth and easy, can avoid compressor reverse rotation again, ensure the stable operation of refrigeration system long-term safety.
In order to solve the problems of the technologies described above, a kind of air-conditioning system provided by the utility model, comprise compressor, counterbalance valve, condenser, throttling arrangement and evaporimeter, the exhaust outlet of described compressor is communicated with the import of described counterbalance valve, the outlet of described counterbalance valve is connected with one end of described condenser through gas exhaust piping, the other end of described condenser is connected with one end of described throttling arrangement, the other end of described throttling arrangement is connected with one end of described evaporimeter, and the other end of described evaporimeter is connected with the gas returning port of described compressor through suction line; On described counterbalance valve, be provided with external balance mouth, this external balance mouth is connected with described gas exhaust piping with described suction line with the second pipeline through the first pipeline respectively, and is respectively arranged with the first control valve and the second control valve on described the first pipeline and described the second pipeline.
Therein in an embodiment, described air-conditioning system also comprises current divider, this current divider has first interface, the second interface and the 3rd interface, described first interface is connected with one end of the 3rd pipeline, the other end of described the 3rd pipeline is connected with described external balance mouth, described the second interface is connected with described first pipeline one end, the other end of described the first pipeline is connected with described suction line, described the 3rd interface is connected with one end of described the second pipeline, and the other end of described the second pipeline is connected with described gas exhaust piping.
In an embodiment, described current divider is T-shaped three-way pipe therein.
In an embodiment, described the first control valve, described the second control valve are magnetic valve therein.
In an embodiment, described air-conditioning system also comprises oil eliminator therein, and the gas-liquid import of this oil eliminator is communicated with the exhaust outlet of described compressor, and the exhaust outlet of this oil eliminator is communicated with the import of described counterbalance valve.
Therein in an embodiment, described oil eliminator comprises built-in oil eliminator and external oil eliminator, the gas-liquid import of described built-in oil eliminator is communicated with the exhaust outlet of described compressor, the exhaust outlet of described built-in oil eliminator is communicated with the import of described counterbalance valve, and the outlet of described counterbalance valve is connected with the gas-liquid import of described external oil eliminator through described gas exhaust piping.
In an embodiment, described air-conditioning system is water-cooling type air conditioning system therein.
Compared with prior art, air-conditioning system provided by the utility model is owing to having adopted said structure, when described compressor is opened, described the first control valve is opened, described the second control valve is closed, system can be set up rapidly enough height pressure reduction, thereby guarantees compressor oil-supplying, cooling smooth and easy, and then effectively guarantees the safe, steady of system cold start-up; And when described compressor cuts out, described the first control valve is closed, described the second control valve is opened, and plays the effect of non-return and shutoff, avoids compressor reverse rotation, and protection system is normally closed.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of the air-conditioning system in one of them embodiment of the utility model;
Fig. 2 is the annexation figure of the counterbalance valve of the air-conditioning system in Fig. 1;
Fig. 3 is the upward view of Fig. 2.
Above in each figure, 1, compressor; 2, counterbalance valve; The import of 2a, counterbalance valve; The outlet of 2b, counterbalance valve; The external balance mouth of 2c, counterbalance valve; 3, the first pipeline; 4, the second pipeline; 5, the 3rd pipeline; 6, the first control valve; 7, the second control valve; 8, gas exhaust piping; 9, suction line; 10, current divider.
The specific embodiment
Below with reference to accompanying drawing, also the utility model is elaborated in conjunction with the embodiments.It should be noted that, in the situation that not conflicting, the feature in following embodiment and embodiment can combine mutually.
As shown in Figure 1, air-conditioning system in one of them embodiment of the utility model comprises: compressor 1, counterbalance valve 2, condenser (not shown), throttling arrangement (not shown), evaporimeter (not shown), gas exhaust piping 8, suction line 9, the first pipeline 3, the second pipeline 4, the first control valve 6 and the second control valve 7, wherein, the exhaust outlet of described compressor 1 is communicated with the import 2a of described counterbalance valve 2, the outlet 2b of described counterbalance valve 2 is connected with one end of described condenser through gas exhaust piping 8, the other end of described condenser is connected with one end of described throttling arrangement, the other end of described throttling arrangement is connected with one end of described evaporimeter, the other end of described evaporimeter is connected with the gas returning port of described compressor 1 through suction line 9.
Shown in Fig. 1,2 and 3, on described counterbalance valve 2, be provided with external balance mouth 2c, this external balance mouth 2c is connected with described gas exhaust piping 8 with described suction line 9 with the second pipeline 4 through the first pipeline 3 respectively, and is respectively arranged with the first control valve 6 and the second control valve 7 on described the first pipeline 3 and described the second pipeline 4.
More preferably, described air-conditioning system also comprises current divider 10, this current divider 10 has first interface, the second interface and the 3rd interface being communicated with each other, described first interface is connected with one end of the 3rd pipeline 5, the other end of described the 3rd pipeline 5 is connected with described external balance mouth 2c, described the second interface is connected with described first pipeline 3 one end, the other end of described the first pipeline 3 is connected with described suction line 9, described the 3rd interface is connected with one end of described the second pipeline 4, and the other end of described the second pipeline 4 is connected with described gas exhaust piping 8.More preferably, described current divider 10 is T-shaped three-way pipe.
More preferably, described the first control valve 6, described the second control valve 7 are magnetic valve.
More preferably, described air-conditioning system also comprises oil eliminator, and the gas-liquid import of this oil eliminator is communicated with the exhaust outlet of described compressor 1, and the exhaust outlet of this oil eliminator is communicated with the import 2a of described counterbalance valve 2.Concrete minute following three kinds of situations:
(1), if compressor 1 carries built-in oil eliminator, the import 2a of counterbalance valve 2 is connected with the exhaust outlet of built-in oil eliminator;
(2) as compressor 1, be not with built-in oil eliminator, only have external oil eliminator, the import 2a of counterbalance valve 2 is connected with the exhaust outlet of external oil eliminator;
(3) compressor 1 had both carried built-in oil eliminator, had again external oil eliminator, for ensureing the smooth oil return of compressor 1, the import 2a of counterbalance valve 2 was connected with the exhaust outlet of built-in oil eliminator.
More preferably, described air-conditioning system is water-cooling type air conditioning system.Further, described air-conditioning system is Worm type water-cooled cooling water air conditioner system.
In another embodiment of the utility model, provide a kind of control method of above-mentioned air-conditioning system, comprise the following steps:
Step 1, when compressor 1 is opened, the first control valve 6 is opened, the second control valve 7 maintains closed condition.Now, compressor 1 air-breathing along the first pipeline 3 by way of current divider 10, the 3rd pipeline 5, from external balance mouth 2c, flow to the top of counterbalance valve 2, mineralization pressure P1; HTHP exhaust after compressor 1 compression, through oil eliminator exhaust outlet, flow to counterbalance valve 2 bottoms, mineralization pressure P2.Compressor 1 is opened moment due to P1 ≈ P2 (differing very little, much smaller than counterbalance valve 2 self spring force), and counterbalance valve 2 keeps closed conditions.Along with compressor 1 constantly does work, the pressure of high-pressure side P2 constantly increases, when setting up between height pressure reduction when enough, i.e. and P2-P1> counterbalance valve 2 self spring force, counterbalance valve 2 is opened.That is, between the import 2a of counterbalance valve 2 and outlet 2b, form path.Then, refrigerant gas enters compressor 1 suction line 9 through condenser, throttling arrangement, evaporimeter, completes smoothly kind of refrigeration cycle.Compressor 1 starts normal load, compressor 1 oil supply system is smooth and easy.And then guarantee that compressor 1 normally starts, volume adjustment, and while particularly protecting compressor 1 cold start-up, unit safe, reliable.
As can be seen here, the air-conditioning system in the present embodiment and control method thereof, efficiently and effectively has guaranteed the reliability of compressor 1 oil supply system and the long-term stability of system.Meanwhile, also protected compressor 1 own, normally closing of safeguards system, plays the positive role that extends compressor 1 and whole system life-span.
The above embodiment has only expressed several embodiment of the present utility model, and it describes comparatively concrete and detailed, but can not therefore be interpreted as the restriction to the utility model the scope of the claims.It should be pointed out that for the person of ordinary skill of the art, without departing from the concept of the premise utility, can also make some distortion and improvement, these all belong to protection domain of the present utility model.
Claims (8)
1. an air-conditioning system, comprise compressor, counterbalance valve, condenser, throttling arrangement and evaporimeter, the exhaust outlet of described compressor is communicated with the import of described counterbalance valve, the outlet of described counterbalance valve is connected with one end of described condenser through gas exhaust piping, the other end of described condenser is connected with one end of described throttling arrangement, the other end of described throttling arrangement is connected with one end of described evaporimeter, and the other end of described evaporimeter is connected with the gas returning port of described compressor through suction line; It is characterized in that, on described counterbalance valve, be provided with external balance mouth, this external balance mouth is connected with described gas exhaust piping with described suction line with the second pipeline through the first pipeline respectively, and is respectively arranged with the first control valve and the second control valve on described the first pipeline and described the second pipeline.
2. air-conditioning system according to claim 1, it is characterized in that, described air-conditioning system also comprises current divider, this current divider has first interface, the second interface and the 3rd interface, described first interface is connected with one end of the 3rd pipeline, the other end of described the 3rd pipeline is connected with described external balance mouth, described the second interface is connected with described first pipeline one end, the other end of described the first pipeline is connected with described suction line, described the 3rd interface is connected with one end of described the second pipeline, and the other end of described the second pipeline is connected with described gas exhaust piping.
3. air-conditioning system according to claim 2, is characterized in that, described current divider is T-shaped three-way pipe.
4. air-conditioning system according to claim 1, is characterized in that, described the first control valve, described the second control valve are magnetic valve.
5. according to the air-conditioning system described in any one in claim 1 to 4, it is characterized in that, described air-conditioning system also comprises oil eliminator, and the gas-liquid import of this oil eliminator is communicated with the exhaust outlet of described compressor, and the exhaust outlet of this oil eliminator is communicated with the import of described counterbalance valve.
6. air-conditioning system according to claim 5, it is characterized in that, described oil eliminator comprises built-in oil eliminator and external oil eliminator, the gas-liquid import of described built-in oil eliminator is communicated with the exhaust outlet of described compressor, the exhaust outlet of described built-in oil eliminator is communicated with the import of described counterbalance valve, and the outlet of described counterbalance valve is connected with the gas-liquid import of described external oil eliminator through described gas exhaust piping.
7. air-conditioning system according to claim 5, is characterized in that, described air-conditioning system is cold water formula air-conditioning system.
8. air-conditioning system according to claim 7, is characterized in that, described air-conditioning system is Worm type water-cooled cooling water air conditioner system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320523094.1U CN203489530U (en) | 2013-08-23 | 2013-08-23 | Air conditioning system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320523094.1U CN203489530U (en) | 2013-08-23 | 2013-08-23 | Air conditioning system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203489530U true CN203489530U (en) | 2014-03-19 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320523094.1U Expired - Lifetime CN203489530U (en) | 2013-08-23 | 2013-08-23 | Air conditioning system |
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| Country | Link |
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| CN (1) | CN203489530U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104422065A (en) * | 2013-08-23 | 2015-03-18 | 珠海格力电器股份有限公司 | Air conditioning system and control method thereof |
| US10941955B2 (en) | 2017-10-27 | 2021-03-09 | Dometic Sweden Ab | Systems, methods, and apparatuses for providing communications between climate control devices in a recreational vehicle |
| CN113020141A (en) * | 2021-01-27 | 2021-06-25 | 启东集胜造船有限公司 | Efficient chemical residual liquid removing process for stainless steel chemical ship infusion tube |
| US11254183B2 (en) | 2017-08-25 | 2022-02-22 | Dometic Sweden Ab | Recreational vehicle, cooling device, controlling system and method for controlling the cooling device |
-
2013
- 2013-08-23 CN CN201320523094.1U patent/CN203489530U/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104422065A (en) * | 2013-08-23 | 2015-03-18 | 珠海格力电器股份有限公司 | Air conditioning system and control method thereof |
| CN104422065B (en) * | 2013-08-23 | 2018-02-09 | 珠海格力电器股份有限公司 | Air conditioning system and control method thereof |
| US11254183B2 (en) | 2017-08-25 | 2022-02-22 | Dometic Sweden Ab | Recreational vehicle, cooling device, controlling system and method for controlling the cooling device |
| US11919363B2 (en) | 2017-08-25 | 2024-03-05 | Dometic Sweden Ab | Recreational vehicle, cooling device, controlling system and method for controlling the cooling device |
| US10941955B2 (en) | 2017-10-27 | 2021-03-09 | Dometic Sweden Ab | Systems, methods, and apparatuses for providing communications between climate control devices in a recreational vehicle |
| CN113020141A (en) * | 2021-01-27 | 2021-06-25 | 启东集胜造船有限公司 | Efficient chemical residual liquid removing process for stainless steel chemical ship infusion tube |
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| GR01 | Patent grant | ||
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Granted publication date: 20140319 |
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| CX01 | Expiry of patent term |