CN109813006A - A kind of air-conditioning system and control method improving refrigerated medium heat - Google Patents
A kind of air-conditioning system and control method improving refrigerated medium heat Download PDFInfo
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- CN109813006A CN109813006A CN201910036296.5A CN201910036296A CN109813006A CN 109813006 A CN109813006 A CN 109813006A CN 201910036296 A CN201910036296 A CN 201910036296A CN 109813006 A CN109813006 A CN 109813006A
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Abstract
The invention discloses a kind of air-conditioning systems and control method for improving refrigerated medium heat, it include compressor, four-way valve, gas-liquid separator, indoor heat exchanger and outdoor heat exchanger, it further include having auxiliary heat-exchanging branch, wherein, the auxiliary heat-exchanging branch both ends are bypassed respectively on the air-conditioning system main road being parallel between indoor heat exchanger and outdoor heat exchanger, and the auxiliary heat-exchanging branch road is provided with one section of heat exchanging segment being threaded through in gas-liquid separator inner cavity, whether the real-time temperature values of the auxiliary heat-exchanging branch based on gas-liquid separator inner cavity reach presetting parameter state, corresponding starting or closing auxiliary heat-exchanging branch, make heat exchange to enable the refrigerant in air-conditioning system main road be introduced into gas-liquid separator through auxiliary heat-exchanging branch.
Description
Technical field
The present invention relates to the technical fields of air-conditioning system, refer in particular to a kind of air-conditioning system and control for improving refrigerated medium heat
Method processed.
Background technique
At runtime, the cooling capacity in gas-liquid separator contained by refrigerant does not obtain rationally existing air-conditioning system refrigeration
Application, the energy is wasted；And air-conditioning system is in heating operation, usually too low because of environment temperature, refrigerant is in outdoor heat exchange
Device heat exchange not exclusively, causes low pressure too low, influences heating capacity.
It therefore, how to be the important skill for effectively improving air-conditioning system refrigerating/heating effect using the incomplete refrigerant that exchanges heat
Art problem is practitioner's technical problem in the urgent need to address.
Summary of the invention
It can be filled in cooling and warming it is an object of the invention to overcome the deficiencies of the prior art and provide one kind and utilize gas
The air-conditioning system and control method of the raising refrigerated medium heat of refrigerant in liquid/gas separator.
In order to achieve the above purpose, it is provided by the present invention it is a kind of improve refrigerated medium heat air-conditioning system, include
Compressor, four-way valve, gas-liquid separator, indoor heat exchanger and outdoor heat exchanger, wherein the four-way valve respectively with compressor
Output end, gas-liquid separator one end, indoor heat exchanger one end are connected with outdoor heat exchanger one end, and the indoor heat exchanger is another
End is connected with the outdoor heat exchanger other end；The gas-liquid separator other end is connected with compressor input terminal, further includes having
Auxiliary heat-exchanging branch, wherein the auxiliary heat-exchanging branch both ends bypass respectively to be parallel between indoor heat exchanger and outdoor heat exchanger
Air-conditioning system main road on, and auxiliary heat-exchanging branch road is provided with one section of heat exchanging segment being threaded through in gas-liquid separator inner cavity,
Whether the real-time temperature values of the auxiliary heat-exchanging branch based on gas-liquid separator inner cavity reach presetting parameter state, corresponding
Auxiliary heat-exchanging branch is closed in starting, so that the refrigerant in air-conditioning system main road be enabled to introduce gas-liquid separation through auxiliary heat-exchanging branch
Make heat exchange in device.
It further, further include set on the first solenoid valve of auxiliary heat-exchanging branch road and set on the indoor heat exchanger and room
The second solenoid valve on main road between external heat exchanger.
It further, further include the temperature-sensitive unit in gas-liquid separator, wherein the temperature-sensitive unit is used for real-time monitoring gas
The temperature of liquid/gas separator.
Further, further include having gs-oil separator, wherein the gs-oil separator both ends respectively with four-way valve and compressor
Output end is connected.
A kind of control method for the air-conditioning system improving refrigerated medium heat, auxiliary heat-exchanging branch are based on gas-liquid separator inner cavity
Real-time temperature values whether reach presetting parameter state, corresponding starting or closing auxiliary heat-exchanging branch, to enable sky
Refrigerant in adjusting system main road is introduced into gas-liquid separator through auxiliary heat-exchanging branch makees heat exchange, corresponding to start or close auxiliary
Help heat exchange branch.
Further, when auxiliary heat-exchanging branch starts, the starting of the first solenoid valve and second solenoid valve closing, to enable air-conditioning
Refrigerant in system main road flows into gas-liquid separator through auxiliary heat-exchanging branch and makees heat exchange, then flows back in air-conditioning system main road；
When auxiliary heat-exchanging branch is closed, the first solenoid valve is closed and second solenoid valve is opened.
Further, the different operational modes according to locating for air-conditioning system it is corresponding be provided with presetting parameter state with
The real-time temperature values that temperature-sensitive unit is monitored make real-time comparison, to corresponding starting or close auxiliary heat-exchanging branch.
The present invention uses above-mentioned scheme, the beneficial effect is that: air-conditioning system main road is introduced by auxiliary heat-exchanging branch
In refrigerant make heat exchange in gas-liquid separator, in order to increase the supercooling of refrigerant, improve when air-conditioning system is freezed
Refrigerating capacity, and in air-conditioning system heating, improve low pressure, increase heating capacity；By the above-mentioned means, making full use of
Refrigerant in gas-liquid separator is realized and improves heating/refrigerating capacity effect.
Detailed description of the invention
Fig. 1 is the composed structure schematic diagram of air-conditioning system of the invention.
Wherein, 1- compressor, 2- gs-oil separator, 3- four-way valve, 4- gas-liquid separator, 5- indoor heat exchanger, outside the room 6-
Heat exchanger, 7- expansion valve, 8- heat exchanging segment, the first solenoid valve of 9-, 10- second solenoid valve, 11- temperature-sensitive unit.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that the described embodiment is only a part of the embodiment of the present invention, instead of all the embodiments.Based on this
Embodiment in invention, every other reality obtained by those of ordinary skill in the art without making creative efforts
Example is applied, shall fall within the protection scope of the present invention.
Referring to figure 1, in the present embodiment, a kind of air-conditioning system improving refrigerated medium heat, includes compressor
1, gs-oil separator 2, four-way valve 3, gas-liquid separator 4, indoor heat exchanger 5 and outdoor heat exchanger 6, expansion valve 7, wherein four-way
Valve 3 includes interface A, tetra- interface B, interface C and interface D interfaces, wherein interface A, interface B, interface C and the interface D of four-way valve
It is connected respectively with 2 one end of gs-oil separator, 6 one end of outdoor heat exchanger, 4 one end of gas-liquid separator, 5 one end of indoor heat exchanger；
7 both ends of expansion valve are connected with the other end of the other end of indoor heat exchanger 5 and outdoor heat exchanger 6 respectively；Gas-liquid separator 4 is another
One end is connected with 1 input terminal of compressor；The above-mentioned refrigerant circulation flow path for just constituting air-conditioning system.
It in the present embodiment, further include having auxiliary heat-exchanging branch, wherein the auxiliary heat-exchanging branch both ends bypass parallel connection respectively
On air-conditioning system main road between indoor heat exchanger and outdoor heat exchanger, that is, by the both ends of the auxiliary heat-exchanging branch of this implementation
It is logical to be connected in parallel on expansion valve 7 to the main road between indoor heat exchanger 5, it is arranged in parallel to realize with this section of main road.In addition, auxiliary
Heat exchange branch road is provided with one section of heat exchanging segment 8 being threaded through in 4 inner cavity of gas-liquid separator, setting in this way, in order to cold
Matchmaker flows into auxiliary heat-exchanging branch, then carries out heat exchange with the refrigerant stored in gas-liquid separator 4 at heat exchanging segment 8, finally
Flow into auxiliary heat-exchanging branch.
It in the present embodiment, further include having set on the first solenoid valve 9 of auxiliary heat-exchanging branch road and set on indoor heat exchange
Second solenoid valve 10 on main road between device and outdoor heat exchanger, that is, the first solenoid valve 9 setting of the present embodiment is changed in auxiliary
Hot branch road, the on-off of auxiliary heat-exchanging branch is controlled by the open/close of the first solenoid valve 9；The second solenoid valve of the present embodiment
10 between auxiliary heat-exchanging branch and two connection end points of main road, by the opening of second solenoid valve 10/and to control expansion valve 7
To the on-off of the main road between indoor heat exchanger 5.
It in the present embodiment, further include the temperature-sensitive unit 11 in gas-liquid separator, using the temperature-sensitive unit 11 come real
When monitor gas-liquid separator 4 temperature, so that the temperature value monitored is fed back to air-conditioning system, thus in order to air-conditioning system
It is compared according to real-time temperature values with presetting parameter state, so that opposite start or close auxiliary heat-exchanging branch, that is,
By the movement of the open/close of the first solenoid valve 9 of control or second solenoid valve 10, thus corresponding selection on/off auxiliary branch
Or main road.
In order to make it easy to understand, by combining specific control method to further illustrate above-mentioned air-conditioning system.
In the present embodiment, presetting parameter shape is provided with according to different operational modes locating for air-conditioning system are corresponding
The real-time temperature values that state is monitored with temperature-sensitive unit 11 make real-time comparison, to corresponding starting or close auxiliary heat-exchanging branch
Road.
Situation one: air-conditioning system is in refrigerating operaton, when temperature-sensitive unit 11 monitors that the temperature in gas-liquid separator 4 is lower than
When presetting parameter state (that is, T≤20 DEG C), the first solenoid valve 9 at this time is opened, and second solenoid valve 10 is closed, to open
The dynamic auxiliary branch that exchanges heat passes through the first solenoid valve 9 and enters auxiliary heat-exchanging branch after the expanded valve 7 of refrigerant in main road throttles
Heat exchanging segment 8 carries out heat exchange supercooling with the low-temp low-pressure refrigerant in gas-liquid separator 4, flows to interior through auxiliary heat-exchanging branch after
It is evaporated in heat exchanger.Heat exchange supercooling is carried out through auxiliary heat-exchanging branch and gas-liquid separator 4 by above-mentioned refrigerant, to drop
Low evaporating temperature, improves refrigerating capacity.As the continuous service of auxiliary heat-exchanging branch is opened, the temperature meeting in gas-liquid separator 4
Presentation gradually rises, and supercooling effect can be gradually reduced, therefore, when temperature-sensitive unit 11 monitors the height of the temperature in gas-liquid separator 4
When presetting parameter state when (that is, 20 DEG C of T >), the first solenoid valve 9 at this time is closed, and second solenoid valve 10 is opened, warp
Refrigerant after the throttling of expansion valve 7 is directly entered indoor heat exchanger 5 through second solenoid valve 10 and exchanges heat, and uses in this way
In guarantee gas-liquid separator 4 in be not in the excessively high problem of low pressure.
Situation two: air-conditioning system is in the state of heating, when temperature-sensitive unit 11 monitors that the temperature in gas-liquid separator 4 is lower than
When presetting parameter state when (that is, T≤10 DEG C), the first solenoid valve 9 at this time is opened, and second solenoid valve 10 is closed, thus
Start auxiliary heat-exchanging branch, that is, the middle pressure medium temperature refrigerant after the heat exchange of indoor heat exchanger 5 flows into changing for supplementary heat exchanger branch
Hot arc 8 carries out heat release, then flows to expansion valve 7 through the first solenoid valve 9 again and throttles, the refrigerant of throttling enters outdoor heat exchanger
6.Above-mentioned is low by the way that heat is transmitted to low temperature in gas-liquid separator 4 by the refrigerant of the middle pressure medium temperature after the heat exchange of indoor heat exchanger 5
The refrigerant of pressure, evaporating low pressure refrigerant improve the low pressure under heating, advantageously reduce liquid hammer risk, improve heating capacity.With
The continuous service of auxiliary heat-exchanging branch open, the temperature in gas-liquid separator 4, which can be presented, to be gradually risen, therefore, when temperature-sensitive list
When member 11 monitors (that is, 10 DEG C of T >) when the temperature in gas-liquid separator 4 is higher than presetting parameter state, at this time first
Solenoid valve 9 is closed, and second solenoid valve 10 is opened, the refrigerant after being exchanged heat by indoor heat exchanger 5 successively through second solenoid valve 10 and
Expansion valve 7 is directly entered outdoor heat exchanger 6 after throttling and exchanges heat, and guarantees that low pressure at this time is not too high with this.
The embodiment of the above is only presently preferred embodiments of the present invention, not does limit in any form to the present invention
System.Anyone skilled in the art utilizes the skill of the disclosure above without departing from the scope of the technical proposal of the invention
Art content makes more possible variations and retouching to technical solution of the present invention, or modification is equivalent embodiment of the invention.
Therefore all contents without departing from technical solution of the present invention, equivalent equivalence changes, should all be covered by made by thinking according to the present invention
In protection scope of the present invention.
Claims (7)
1. a kind of air-conditioning system for improving refrigerated medium heat, includes compressor (1), four-way valve (3), gas-liquid separator (4), room
Interior heat exchanger and outdoor heat exchanger, wherein the four-way valve (3) respectively with the output end of compressor (1), gas-liquid separator (4)
One end, indoor heat exchanger one end are connected with outdoor heat exchanger one end, and the indoor heat exchanger other end and outdoor heat exchanger are another
One end is connected；Gas-liquid separator (4) other end is connected with compressor input terminal, it is characterised in that: further include have it is auxiliary
Help heat exchange branch, wherein the auxiliary heat-exchanging branch both ends bypass respectively to be parallel between indoor heat exchanger and outdoor heat exchanger
On air-conditioning system main road, and the auxiliary heat-exchanging branch road is provided with one section of heat exchanging segment being threaded through in gas-liquid separator (4) inner cavity
(8), whether the real-time temperature values that the auxiliary heat-exchanging branch is based on gas-liquid separator (4) inner cavity reach presetting parameter shape
State, corresponding starting or closing auxiliary heat-exchanging branch, to enable the refrigerant in air-conditioning system main road through auxiliary heat-exchanging branch pass
Enter and makees heat exchange in gas-liquid separator.
2. a kind of air-conditioning system for improving refrigerated medium heat according to claim 1, it is characterised in that: further include set on auxiliary
Help the first solenoid valve (9) of heat exchange branch road and on main road between the indoor heat exchanger and outdoor heat exchanger the
Two solenoid valves (10).
3. a kind of air-conditioning system for improving refrigerated medium heat according to claim 1, it is characterised in that: further include being set to gas
Temperature-sensitive unit (11) in liquid/gas separator (4), wherein the temperature-sensitive unit (11) is used for the temperature of real-time monitoring gas-liquid separator (4)
Degree.
4. a kind of air-conditioning system for improving refrigerated medium heat according to claim 1, it is characterised in that: further include having oil gas
Separator (2), wherein gs-oil separator (2) both ends are connected with four-way valve (3) and compressor (1) output end respectively.
5. a kind of control method of the air-conditioning system of raising refrigerated medium heat described in a kind of claim 1-4 any one,
Be characterized in that: whether real-time temperature values of the auxiliary heat-exchanging branch based on gas-liquid separator inner cavity reach presetting parameter state,
Corresponding starting or closing auxiliary heat-exchanging branch, so that the refrigerant in air-conditioning system main road be enabled to introduce gas through auxiliary heat-exchanging branch
Make heat exchange, corresponding starting or closing auxiliary heat-exchanging branch in liquid/gas separator.
6. a kind of control method of air-conditioning system for improving Smaller load operation refrigerating capacity according to claim 5, feature
It is:
When the starting of auxiliary heat-exchanging branch, the first solenoid valve (9) starting and second solenoid valve (10) closing, to enable air-conditioning system
Refrigerant in main road flows into gas-liquid separator (4) through auxiliary heat-exchanging branch and makees heat exchange, then flows back in air-conditioning system main road；
When auxiliary heat-exchanging branch is closed, the first solenoid valve (9) is closed and second solenoid valve (10) is opened.
7. a kind of control method of air-conditioning system for improving Smaller load operation refrigerating capacity according to claim 6, feature
Be: the different operational modes according to locating for air-conditioning system are corresponding to be provided with presetting parameter state and temperature-sensitive unit
(11) real-time temperature values monitored make real-time comparison, to corresponding starting or close auxiliary heat-exchanging branch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910036296.5A CN109813006B (en) | 2019-01-15 | 2019-01-15 | Air conditioning system for improving refrigerating and heating capacity and control method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910036296.5A CN109813006B (en) | 2019-01-15 | 2019-01-15 | Air conditioning system for improving refrigerating and heating capacity and control method |
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| CN109813006A true CN109813006A (en) | 2019-05-28 |
| CN109813006B CN109813006B (en) | 2020-10-27 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201910036296.5A Active CN109813006B (en) | 2019-01-15 | 2019-01-15 | Air conditioning system for improving refrigerating and heating capacity and control method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113339946A (en) * | 2021-05-19 | 2021-09-03 | 广东Tcl智能暖通设备有限公司 | Air conditioner operation control method and device, air conditioner and computer storage medium |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02298763A (en) * | 1989-05-15 | 1990-12-11 | Hitachi Ltd | Refrigerator |
| JP2000018739A (en) * | 1998-06-26 | 2000-01-18 | Matsushita Refrig Co Ltd | Heating-cooling combination device |
| CN1474124A (en) * | 2003-05-21 | 2004-02-11 | 北京建筑工程学院 | Low temperature air heat source heat pump system |
| WO2013073482A1 (en) * | 2011-11-14 | 2013-05-23 | 東京エレクトロン株式会社 | Temperature control device, processing device, and temperature control method |
| CN104329839A (en) * | 2013-07-22 | 2015-02-04 | 广东美的暖通设备有限公司 | Air-conditioning system and low-temperature starting control method thereof |
| CN204313513U (en) * | 2014-10-24 | 2015-05-06 | 林龙朝 | Overlapping both cooling and heating high temperature heat pump |
| CN205448428U (en) * | 2016-02-22 | 2016-08-10 | 青岛海信电子设备股份有限公司 | Take hot switching function's vapour and liquid separator and air conditioning system |
-
2019
- 2019-01-15 CN CN201910036296.5A patent/CN109813006B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02298763A (en) * | 1989-05-15 | 1990-12-11 | Hitachi Ltd | Refrigerator |
| JP2000018739A (en) * | 1998-06-26 | 2000-01-18 | Matsushita Refrig Co Ltd | Heating-cooling combination device |
| CN1474124A (en) * | 2003-05-21 | 2004-02-11 | 北京建筑工程学院 | Low temperature air heat source heat pump system |
| WO2013073482A1 (en) * | 2011-11-14 | 2013-05-23 | 東京エレクトロン株式会社 | Temperature control device, processing device, and temperature control method |
| CN104329839A (en) * | 2013-07-22 | 2015-02-04 | 广东美的暖通设备有限公司 | Air-conditioning system and low-temperature starting control method thereof |
| CN204313513U (en) * | 2014-10-24 | 2015-05-06 | 林龙朝 | Overlapping both cooling and heating high temperature heat pump |
| CN205448428U (en) * | 2016-02-22 | 2016-08-10 | 青岛海信电子设备股份有限公司 | Take hot switching function's vapour and liquid separator and air conditioning system |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113339946A (en) * | 2021-05-19 | 2021-09-03 | 广东Tcl智能暖通设备有限公司 | Air conditioner operation control method and device, air conditioner and computer storage medium |
| CN113339946B (en) * | 2021-05-19 | 2022-08-30 | 广东Tcl智能暖通设备有限公司 | Air conditioner operation control method and device, air conditioner and computer storage medium |
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| CN109813006B (en) | 2020-10-27 |
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Address after: No. 1 by villagers' group of helongsha, Shengli village, Lishui Town, Nanhai District, Foshan City, Guangdong Province Patentee after: Guangdong Kaili HVAC Co.,Ltd. Address before: No. 1 by villagers' group of helongsha, Shengli village, Lishui Town, Nanhai District, Foshan City, Guangdong Province Patentee before: GUANGDONG CHIGO HEATING AND VENTILATION EQUIPMENT Co.,Ltd. |