CN202547175U - United unit without liquid reservoir - Google Patents
United unit without liquid reservoir Download PDFInfo
- Publication number
- CN202547175U CN202547175U CN2012200527105U CN201220052710U CN202547175U CN 202547175 U CN202547175 U CN 202547175U CN 2012200527105 U CN2012200527105 U CN 2012200527105U CN 201220052710 U CN201220052710 U CN 201220052710U CN 202547175 U CN202547175 U CN 202547175U
- Authority
- CN
- China
- Prior art keywords
- heat exchanger
- compressor
- outdoor heat
- indoor set
- interface
- 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.)
- Expired - Fee Related
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Classifications
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
- Y02B30/70—Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating
Abstract
The utility model discloses a united unit without a liquid reservoir. The united unit comprises an outdoor heat exchanger, a compressor, an oil separator and a plurality of indoor units. The oil separator is arranged between the compressor and a four-way valve, the four-way valve is connected with the outdoor heat exchanger, the indoor units and a low-pressure inlet of the compressor respectively, the indoor units are connected with the outdoor heat exchanger, an electronic expansion valve is arranged on a pipeline of an output end of each indoor unit, and the electronic expansion valves are gathered to a connecting pipe and then connected with the outdoor heat exchanger. Each indoor unit is provided with one electronic expansion valve, the electronic expansion valve is used for completing throttling and depressurizing, a refrigerant in a copper pipe between the electronic expansion valves and the outdoor heat exchanger is changed into a gas and liquid mixed state, and accordingly, the problem that the refrigerant filling quantities are mismatched during refrigerating and heating is solved, the liquid reservoir is omitted, and the system structure is simplified. In addition, the refrigerant circulates among the pipeline and the different components directly so that loss of the refrigerant is reduced and performance and effect of the united unit are improved.
Description
Technical field
The utility model relates to the air-conditioning product technical field, is specifically related to a kind of many on-line systems.
Background technology
The multiple unit is to drag many modes; It is that a main frame drives several indoor sets; What adopt is frequency-changeable compressor, and most of multiple central air-conditioning unit can be regulated between 10-130% automatically, and it has advantages such as effective, that efficient is high, power consumption is low.Traditional multiple central air-conditioning unit all will be provided with a reservoir and be used to store unnecessary cold-producing medium; Unnecessary reason is to cause cold-producing medium; The main throttle part of tradition air-conditioning unit is in outdoor evaporimeter front, and the state of cold-producing medium is liquid state in this section pipeline when heating, because the volume of pipeline is constant; And then there is not this problem in the amount of liquid refrigerant of equal volume obviously greatly more than the gaseous refrigerant amount of equal volume when refrigeration.So just cause system more when required refrigerant amount is than refrigeration when heating, the charging amount of cold-producing medium does not match when causing refrigeration and heating.The refrigeration that traditional many on-line systems that Here it is exist always, heat the unmatched problem of charging amount.In order to store this part unmatched cold-producing medium, so designed reservoir, when refrigeration, unnecessary cold-producing medium gets in the reservoir and stores, and calls this part cold-producing medium when heating again, through realizing balance like this.Yet the design of installing reservoir additional can change the structure of system, increases the production cost of equipment, and can influence the performance of system.
The utility model content
The technical problem that the utility model will solve provide a kind of cost lower, need not to install the how online of reservoir.
For solving the problems of the technologies described above; The utility model adopts following technical scheme: a kind of no reservoir how online; It is characterized in that: these many on-line systems comprise outdoor heat exchanger, compressor, oil content and some indoor sets, and oil content is located between compressor and the cross valve, and the high-pressure outlet of compressor connects the input port of oil content; The main delivery outlet of oil content connects first interface of cross valve, and the secondary delivery outlet of oil content connects the low-pressure inlet of compressor; The second interface junction chamber external heat exchanger of cross valve, the 3rd interface connects indoor set, and the 4th interface connects the compressor low-pressure inlet; Indoor set junction chamber external heat exchanger connects through connecting leg between aforementioned each equipment; The pipeline of indoor set output is provided with electric expansion valve, and each indoor set all is connected with an electric expansion valve, and all electric expansion valves are connected to outdoor heat exchanger after being aggregated into connecting leg by the road.
Further, on the 3rd interface of cross valve and the connecting leg between the indoor set, throttling arrangement is installed.
Further, on the connecting leg between indoor set and the outdoor heat exchanger, throttling arrangement is installed.
Further, the connecting leg between cross valve the 4th interface and the compressor low-pressure inlet is provided with capillary.
It heats control mode: system is in the process of heating, and the high temperature and high pressure gaseous refrigerant that compressor is discharged arrives indoor set through behind the cross valve; Cold-producing medium is in the indoor set condensation; Emit heat, in the coil pipe of indoor set, become the liquid refrigerant of temperature in the high pressure then, through obtaining the cold-producing medium of low-temp low-pressure, gas-liquid mixed after the electric expansion valve throttling; To outdoor heat exchanger, get back to compressor through cross valve through connecting leg again.The maximum characteristics of native system are to accomplish the process of throttling step-down through electric expansion valve; The state of cold-producing medium becomes gas-liquid mixed in the connecting leg (copper pipe) between making from the electric expansion valve to the outdoor heat exchanger; So just make the refrigerant amount that is stored in the pipe reduce, promptly the required refrigerant amount of system has reduced.
The utility model is installed an electric expansion valve through the output of giving every indoor set, accomplishes the process of system's throttling step-down through electric expansion valve, and the state of cold-producing medium becomes gas-liquid mixed in the copper pipe between making like this from the electric expansion valve to the outdoor heat exchanger; Thereby reduced the refrigerant amount that is stored in the copper pipe; Also just make the required refrigerant amount of system reduce, exist cold-producing medium in refrigeration, the unmatched problem of charging amount when heating, therefore no longer need reservoir thereby solved traditional many on-line systems; Thereby simplified the structure of system; Reduce production costs, and cold-producing medium directly circulates between pipeline and each parts, no longer the stop over reservoir; Can reduce its loss, promote the performance and the effect of unit.
Description of drawings
Fig. 1 is the utility model structural representation block diagram.
Among the figure, 1 is electric expansion valve, and 2 is connecting leg, and 3 is cross valve, and 4 is throttling arrangement, and 5 is throttling arrangement.
The specific embodiment
In the present embodiment; With reference to Fig. 1, said no reservoir how online, these many on-line systems comprise outdoor heat exchanger, compressor, oil content (being oil eliminator) and some indoor sets; Oil content is located between compressor and the cross valve 3; The high-pressure outlet of compressor connects the input port of oil content, and the main delivery outlet of oil content connects first interface of cross valve 3, and the secondary delivery outlet of oil content connects the low-pressure inlet of compressor; The second interface junction chamber external heat exchanger of cross valve 3, the 3rd interface connects indoor set, and the 4th interface connects the compressor low-pressure inlet; Indoor set junction chamber external heat exchanger connects through connecting leg 2 between aforementioned each equipment; The pipeline of indoor set output is provided with electric expansion valve 1, and each indoor set all is connected with an electric expansion valve 1, is connected to outdoor heat exchanger after all electric expansion valves 1 are aggregated into connecting leg 2 by the road.
On the 3rd interface of cross valve 3 and the connecting leg 2 between the indoor set, throttling arrangement 4 is installed.
Throttling arrangement 5 is installed on the connecting leg between indoor set and the outdoor heat exchanger 2.
The 4th interface of cross valve 3 and the connecting leg between the compressor low-pressure inlet are provided with capillary.
Heating control mode is: system is in the process of heating, and the high temperature and high pressure gaseous refrigerant that compressor is discharged arrives indoor set through cross valve 3 backs; Cold-producing medium is in the indoor set condensation; Emit heat, in the coil pipe of indoor set, become the liquid refrigerant of temperature in the high pressure then, through obtaining the cold-producing medium of low-temp low-pressure, gas-liquid mixed after electric expansion valve 1 throttling; To outdoor heat exchanger, get back to compressor through cross valve 3 through connecting leg 2 again.The maximum characteristics of native system are to accomplish the process of throttling step-down through electric expansion valve 1; The state of cold-producing medium becomes gas-liquid mixed making from electric expansion valve 1 to the connecting leg the outdoor heat exchanger 2 (copper pipe); So just make the refrigerant amount that is stored in the pipe reduce, promptly the required refrigerant amount of system has reduced.
Below the utility model is done a detailed description; The above is merely the preferred embodiment of the utility model, when not limiting the utility model practical range; Be allly to do impartial change and modify, all should still belong in the utility model covering scope according to the application's scope.
Claims (2)
1. a no reservoir is how online; It is characterized in that: these how online outdoor heat exchanger, compressor, oil content and some indoor sets of comprising; Oil content is located between compressor and the cross valve; The high-pressure outlet of compressor connects the input port of oil content, and the main delivery outlet of oil content connects first interface of cross valve, and the secondary delivery outlet of oil content connects the low-pressure inlet of compressor; The second interface junction chamber external heat exchanger of cross valve, the 3rd interface connects indoor set, and the 4th interface connects the compressor low-pressure inlet; Indoor set junction chamber external heat exchanger connects through connecting leg between aforementioned each equipment; The pipeline of indoor set output is provided with electric expansion valve, and each indoor set all is connected with an electric expansion valve, and all electric expansion valves are connected to outdoor heat exchanger after being aggregated into connecting leg by the road.
2. no reservoir according to claim 1 is how online, it is characterized in that: on the 3rd interface of cross valve and the connecting leg between the indoor set, throttling arrangement is installed.
3. no reservoir according to claim 1 is how online, it is characterized in that: on the connecting leg between indoor set and the outdoor heat exchanger, throttling arrangement is installed.
4. no reservoir according to claim 1 is how online, it is characterized in that: the 4th interface of cross valve and the connecting leg between the compressor low-pressure inlet are provided with capillary.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200527105U CN202547175U (en) | 2012-02-19 | 2012-02-19 | United unit without liquid reservoir |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200527105U CN202547175U (en) | 2012-02-19 | 2012-02-19 | United unit without liquid reservoir |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202547175U true CN202547175U (en) | 2012-11-21 |
Family
ID=47167796
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012200527105U Expired - Fee Related CN202547175U (en) | 2012-02-19 | 2012-02-19 | United unit without liquid reservoir |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202547175U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102538077A (en) * | 2012-02-19 | 2012-07-04 | 周玉涛 | Multi-split air conditioner system without liquid storage devices and control mode of multi-split air conditioner system |
| CN105841292A (en) * | 2016-03-23 | 2016-08-10 | 广东美的暖通设备有限公司 | Multi-split air conditioner system and liquid supplement control method thereof |
| CN108759207A (en) * | 2018-07-16 | 2018-11-06 | 格力电器（杭州）有限公司 | The method for filling of pipeline assembly, outdoor unit and compressor refrigerant |
-
2012
- 2012-02-19 CN CN2012200527105U patent/CN202547175U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102538077A (en) * | 2012-02-19 | 2012-07-04 | 周玉涛 | Multi-split air conditioner system without liquid storage devices and control mode of multi-split air conditioner system |
| CN105841292A (en) * | 2016-03-23 | 2016-08-10 | 广东美的暖通设备有限公司 | Multi-split air conditioner system and liquid supplement control method thereof |
| CN105841292B (en) * | 2016-03-23 | 2018-09-07 | 广东美的暖通设备有限公司 | Multi-line system and its fluid infusion control method |
| CN108759207A (en) * | 2018-07-16 | 2018-11-06 | 格力电器（杭州）有限公司 | The method for filling of pipeline assembly, outdoor unit and compressor refrigerant |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121121 Termination date: 20130219 |