CN104315771A - Device and method for adjusting refrigerant charge volume of air conditioning system - Google Patents
Device and method for adjusting refrigerant charge volume of air conditioning system Download PDFInfo
- Publication number
- CN104315771A CN104315771A CN201410627687.1A CN201410627687A CN104315771A CN 104315771 A CN104315771 A CN 104315771A CN 201410627687 A CN201410627687 A CN 201410627687A CN 104315771 A CN104315771 A CN 104315771A
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- conditioning system
- air
- refrigerant
- check valve
- tube connector
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B45/00—Arrangements for charging or discharging refrigerant
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B41/00—Fluid-circulation arrangements
- F25B41/20—Disposition of valves, e.g. of on-off valves or flow control valves
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B41/00—Fluid-circulation arrangements
- F25B41/30—Expansion means; Dispositions thereof
- F25B41/37—Capillary tubes
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B43/00—Arrangements for separating or purifying gases or liquids; Arrangements for vaporising the residuum of liquid refrigerant, e.g. by heat
- F25B43/003—Filters
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Power Engineering (AREA)
- Other Air-Conditioning Systems (AREA)
Abstract
The invention discloses a device for adjusting the refrigerant charge volume of an air conditioning system. The device comprises a unidirectional liquid storage tank (5), a first connecting pipe (1) connected to the inlet end of the unidirectional liquid storage tank (5) and a second connecting pipe (6) connected to the outlet end of the unidirectional liquid storage tank (5). The first connecting pipe (1) is detachably connected with an indoor unit and a heat exchanger in an outdoor unit, and the second connecting pipe (6) is detachably connected with another heat exchanger. According to the air conditioning system, compared with a bi-directional liquid storage tank, the size of the unidirectional liquid storage tank is small, the occupied space is effectively reduced, the unidirectional liquid storage tank is particularly suitable for a light split type air conditioner, and the production cost is reduced; besides, the refrigerant charge volume in refrigeration and heating states is effectively adjusted, and the overall performance is improved. The invention further provides a method for adjusting the refrigerant charge volume of the air conditioning system.
Description
Technical field
The present invention relates to technical field of refrigeration equipment, particularly a kind of air-conditioning system refrigerant charging quantity regulating device and control method.
Background technology
At present.In air-conditioning system, realized the object of cooling and warming by the refrigerant constantly circulated.For a set air-conditioning system (comprising indoor set and off-premises station), need to consider its ability and security performance.Wherein, the number of refrigerant charge, is decided by the demand of the size of compressor, evaporimeter and condenser and the overall performance of throttle part.
But, in the matching process of these four large parts, may occur that air-conditioning system is in refrigeration or heat the cold-producing medium (refrigerant) of demand under state and measure inconsistent situation.Especially seriously evaporimeter and condenser, when it is inconsistent to the demand of cold-producing medium, makes the overall performance of air-conditioning system lower.
Therefore, how to improve the overall performance of air-conditioning system, become those skilled in the art's problem demanding prompt solution.
Summary of the invention
In view of this, the invention provides a kind of air-conditioning system refrigerant charging quantity regulating device, to improve the overall performance of air-conditioning system.Present invention also offers a kind of air-conditioning system refrigerant charging amount adjustment method.
For achieving the above object, the invention provides following technical scheme:
A kind of air-conditioning system refrigerant charging quantity regulating device,
Comprise: unidirectional fluid reservoir, be connected to the first tube connector of the entrance point of described unidirectional fluid reservoir, be connected to the second tube connector of the port of export of described unidirectional fluid reservoir
。
Preferably, refrigerant charging quantity regulating device in above-mentioned air-conditioning system, described charging amount adjusting device also comprises:
First check valve, the port of export of described first check valve is connected with described first tube connector;
First capillary, one end of described first capillary is connected with the port of export of described first check valve, and the other end is connected with the entrance point of described first check valve;
Second check valve, the port of export of described second check valve is connected with described second tube connector;
Second capillary, two ends of described second capillary are connected with the port of export of described second check valve, and the other end is connected with the entrance point of described second check valve.
Preferably, in above-mentioned air-conditioning system refrigerant charging quantity regulating device, described first tube connector is bend pipe; Described second tube connector is variable diameter straight tube.
Preferably, in above-mentioned air-conditioning system refrigerant charging quantity regulating device, described first tube connector and described second tube connector are copper pipe.
Preferably, in above-mentioned air-conditioning system refrigerant charging quantity regulating device, the entrance point of described first check valve is provided with the first filter.
Preferably, in above-mentioned air-conditioning system refrigerant charging quantity regulating device, the entrance point of described second check valve is provided with the second filter.
Preferably, in above-mentioned air-conditioning system refrigerant charging quantity regulating device, described first tube connector and described first check valve removably connect; Described second tube connector and described second check valve removably connect.
Present invention also offers a kind of air-conditioning system refrigerant charging amount adjustment method as above described in any one, comprise step:
Detect, to detect under air-conditioning system refrigeration mode refrigerant requirements amount under refrigerant requirements amount and heating mode, draw corresponding refrigeration demand refrigerant amount and heating needs refrigerant amount;
Calculate, under more optimum cooling and warming performance state, calculate the filled difference of refrigeration demand refrigerant amount and heating needs refrigerant amount, and draw adjustment charging amount;
Select, select air-conditioning system refrigerant charging quantity regulating device as described in above-mentioned any one, described unidirectional fluid reservoir and described adjustment charging amount are matched;
Connect, when when refrigeration demand refrigerant amount is many, heating needs refrigerant amount is few, the described entrance point of unidirectional fluid reservoir is connected with the heat exchanger of outdoor unit of air-conditioning system, and its port of export is connected with the heat exchanger indoor unit of air-conditioning system; When refrigeration demand refrigerant amount is few, heating needs refrigerant amount is many, the described entrance point of unidirectional fluid reservoir is connected with the heat exchanger indoor unit of air-conditioning system, and its port of export is connected with the heat exchanger of outdoor unit of air-conditioning system;
Regulate, regulated the refrigerant charge of described heat exchanger indoor unit and described heat exchanger of outdoor unit by described charging amount adjusting device.
As can be seen from above-mentioned technical scheme, when air-conditioning system refrigerant charging quantity regulating device provided by the invention regulates the cold-producing medium in air-conditioning system, air-conditioning system refrigerant charging quantity regulating device is installed in air-conditioning system, when when refrigeration demand refrigerant amount is many, heating needs refrigerant amount is few, first tube connector is connected with heat exchanger of outdoor unit, second tube connector is connected with the heat exchanger of indoor set, cold-producing medium in heat exchanger of outdoor unit flows into unidirectional fluid reservoir, and flows into the heat exchanger of indoor set; In like manner, when when refrigeration demand refrigerant amount is many, heating needs refrigerant amount is few, dismantle relative with the second tube connector for the first tube connector, second tube connector is connected with heat exchanger of outdoor unit, first tube connector is connected with the heat exchanger of indoor set, cold-producing medium in heat exchanger indoor unit flows into unidirectional fluid reservoir, and flows into the heat exchanger of off-premises station.As can be seen from above-mentioned technical scheme, the air-conditioning system refrigerant charging quantity regulating device that the embodiment of the present invention provides, have adjusted the demand of air-conditioning system cold-producing medium under cooling and warming pattern effectively.The air-conditioning system that the embodiment of the present invention provides, compared with bidirectional liquid storage tank, the small volume of unidirectional fluid reservoir, effectively reduces floor space, is particularly useful for, in the separate type air conditioner of lightweight, reducing production cost; Further, by arranging charging amount adjusting device, effectively have adjusted refrigeration and the refrigerant charge under heating state, improve overall performance.
Present invention also offers a kind of as any one air-conditioning system refrigerant charging amount adjustment method above-mentioned.Because above-mentioned air-conditioning system has above-mentioned technique effect, above-mentioned refrigerant charging amount adjustment method also should have similarly technique effect, at this not in detailed introduction.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present invention 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 some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
The structural representation of the air-conditioning system refrigerant charging quantity regulating device that Fig. 1 provides for the embodiment of the present invention.
Detailed description of the invention
The invention discloses a kind of air-conditioning system, to improve the overall performance of air-conditioning system.Present invention also offers a kind of refrigerant charging amount adjustment method of air-conditioning system.
Below in conjunction with the accompanying drawing in the embodiment of the present invention, be clearly and completely described the technical scheme in the embodiment of the present invention, obviously, described embodiment is only the present invention's part embodiment, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, belong to the scope of protection of the invention.
Please refer to Fig. 1, the structural representation of the air-conditioning system refrigerant charging quantity regulating device that Fig. 1 provides for the embodiment of the present invention.
Embodiments provide a kind of air-conditioning system refrigerant charging quantity regulating device, comprise
Unidirectional fluid reservoir 5, is connected to the first tube connector 1 of the entrance point of unidirectional fluid reservoir 5, is connected to the second tube connector 6 of the port of export of unidirectional fluid reservoir 5; First tube connector 1 removably connects with the indoor set of air-conditioning system or the heat exchanger of off-premises station, and the second tube connector 6 removably connects with another heat exchanger.Unidirectional fluid reservoir 5 has one-way conduction performance, in the present embodiment, the entrance point of unidirectional fluid reservoir 5 is communicated with the first tube connector 1, second tube connector 6 of the port of export of unidirectional fluid reservoir 5, makes flow of refrigerant direction for be flowed by the first tube connector 1, unidirectional fluid reservoir 5 and the second tube connector 6 successively.
When the air-conditioning system refrigerant charging quantity regulating device that the embodiment of the present invention provides regulates the cold-producing medium in air-conditioning system, air-conditioning system refrigerant charging quantity regulating device is installed in air-conditioning system, when when refrigeration demand refrigerant amount is many, heating needs refrigerant amount is few, first tube connector 1 is connected with the heat exchanger of outdoor unit of air-conditioning system, second tube connector 6 is connected with the heat exchanger of indoor set, cold-producing medium in heat exchanger of outdoor unit flows into unidirectional fluid reservoir 5, and flows into the heat exchanger of indoor set; In like manner, when when refrigeration demand refrigerant amount is many, heating needs refrigerant amount is few, dismantle relative with the second tube connector 6 for the first tube connector 1, second tube connector 6 is connected with heat exchanger of outdoor unit, first tube connector 1 is connected with the heat exchanger of indoor set, cold-producing medium in heat exchanger indoor unit flows into unidirectional fluid reservoir 5, and flows into the heat exchanger of off-premises station.As can be seen from above-mentioned technical scheme, the air-conditioning system refrigerant charging quantity regulating device that the embodiment of the present invention provides, have adjusted the demand of air-conditioning system cold-producing medium under cooling and warming pattern effectively.The air-conditioning system that the embodiment of the present invention provides, compared with bidirectional liquid storage tank, the small volume of unidirectional fluid reservoir 5, effectively reduces floor space, is particularly useful for, in the separate type air conditioner of lightweight, reducing production cost; Further, by arranging charging amount adjusting device, effectively have adjusted refrigeration and the refrigerant charge under heating state, improve overall performance.
In air-conditioning system, the stop valve of off-premises station is connected with heat exchanger indoor unit, therefore, when the first tube connector 1 or the second tube connector 6 are connected with heat exchanger indoor unit, only needs to make it be connected with the stop valve of off-premises station.When many and heating needs refrigerant amount of refrigeration demand refrigerant amount is few, be the short of refrigerant in heat exchanger indoor unit and the refrigerant amount in heat exchanger of outdoor unit is too much, make the some refrigerant in heat exchanger of outdoor unit flow in heat exchanger indoor unit; Refrigeration demand refrigerant amount is few and heating needs refrigerant amount is many time, be refrigerant amount in the heat exchanger indoor unit short of refrigerant too much and in heat exchanger of outdoor unit, the some refrigerant in heat exchanger indoor unit is flowed in heat exchanger of outdoor unit.
Further, for the ease of cold-producing medium circulation and the accuracy of flow direction, charging amount adjusting device also comprises: the port of export of the first check valve 3, first check valve 3 is connected with the first tube connector 1; One end of first capillary 2, first capillary 2 is connected with the port of export of the first check valve 3, and the other end is connected with the entrance point of the first check valve 3; The port of export of the second check valve 8, second check valve 8 is connected with the second tube connector 1; Two ends of the second capillary 7, second capillary 7 are connected with the port of export of the second check valve 8, and the other end is connected with the entrance point of the second check valve 8.When refrigeration demand refrigerant amount is many, heating needs refrigerant amount is few, cold-producing medium in heat exchanger of outdoor unit, successively through the first check valve 3, first tube connector 1, unidirectional fluid reservoir 5, second tube connector 6 and the second capillary 7, flows in heat exchanger indoor unit; When refrigeration demand refrigerant amount is many, heating needs refrigerant amount is few, the direction of the unidirectional fluid reservoir 5 in the air-conditioning system regulating the embodiment of the present invention to provide, cold-producing medium in heat exchanger indoor unit is successively through the first check valve 3, first tube connector 1, unidirectional fluid reservoir 5, second tube connector 6 and the second capillary 7, flow in heat exchanger indoor unit, effectively regulate the charging amount of air-conditioning system cooling and warming cold-producing medium.
As shown in Figure 1, the first tube connector 1 is bend pipe; Second tube connector 6 is variable diameter straight tube.That is, unidirectional fluid reservoir 5 and the second tube connector 6 are arranged in indoor set or off-premises station, and are connected in another by the first tube connector 1, avoid by outside exposed for unidirectional fluid reservoir 5 and cause install difficulty.
Preferably, the first tube connector 1 and the second tube connector 6 are copper pipe.
In order to improve the cleannes to the ducted cold-producing medium flowing into the air-conditioning system that the embodiment of the present invention provides, avoiding line clogging, needing to increase filter.
In the present embodiment, the entrance point of the first check valve 3 is provided with the first filter 4.Further, the entrance point of the second check valve 8 is provided with the second filter 9.Therefore, in the process regulating refrigerant charge, the charging amount that cold-producing medium enters the embodiment of the present invention after all needing to flow through a filter provide regulates in the capillary of dress, and then the impurity that effectively prevent in cold-producing medium enters.
As from the foregoing, when refrigeration demand refrigerant amount is more, refrigeration demand refrigerant amount is less, the unidirectional entrance point of fluid reservoir 5 is connected with the heat exchanger of off-premises station, and the port of export of unidirectional fluid reservoir 5 is connected with the heat exchanger of indoor set; When refrigeration demand refrigerant amount is less, refrigeration demand refrigerant amount is more, the unidirectional entrance point of fluid reservoir 5 is connected with the heat exchanger of indoor set, and the port of export of unidirectional fluid reservoir 5 is connected with the heat exchanger of off-premises station.Therefore, the closure of the air-conditioning system needing to regulate unidirectional fluid reservoir 5 to provide in the embodiment of the present invention.
In the present embodiment, the first tube connector 1 and the first check valve 3 removably connect; Second tube connector 6 and the second check valve 8 removably connect.That is, need to regulate unidirectional fluid reservoir 5 when the closure of air-conditioning system, the first tube connector 1 and the first check valve 3 are dismantled; Second tube connector 6 and the second check valve 8 are dismantled, and be connected with the second check valve 8 by the first tube connector 1, the second tube connector 6 is connected with the first check valve 3.
Also can be set to other structures, the first tube connector 1 is fixedly connected with the first check valve 3; Second tube connector 6 is fixedly connected with the second check valve 8.When needing the closure regulating unidirectional fluid reservoir 5 in air-conditioning system, regulate the first check valve 3 and the second check valve 8 connection within air-conditioning systems.That is, when cold-producing medium is flowed to indoor set by off-premises station by needs, the first check valve 3 is connected with the heat exchanger of off-premises station, and the second check valve 8 is connected with the heat exchanger of indoor set; And when cold-producing medium is flowed to off-premises station by indoor set by needs, the second check valve 8 is connected with the heat exchanger of off-premises station, the first check valve 3 is connected with the heat exchanger of indoor set.
The embodiment of the present invention additionally provides a kind of control method of air-conditioning system refrigerant charge, comprises step:
Detect, detect the refrigerant requirements amount under air-conditioning system refrigeration mode and the refrigerant requirements amount under heating mode; By detecting the refrigerant requirements amount under air-conditioning system refrigeration mode, drawing refrigeration demand refrigerant amount, by detecting the refrigerant requirements amount under air-conditioning system heating mode, drawing heating needs refrigerant amount.
Calculate, under optimum cooling and warming state, calculate the filled difference of refrigeration demand refrigerant amount and heating needs refrigerant amount, and draw adjustment charging amount; That is, regulate charging amount for filling difference.
Select, select as any one air-conditioning system refrigerant charging quantity regulating device above-mentioned, the unidirectional fluid reservoir 5 in air-conditioning system refrigerant charging quantity regulating device is matched with regulating charging amount; Unidirectional fluid reservoir 5 has one-way conduction performance.
Connect, the indoor set of air-conditioning system refrigerant charging quantity regulating device and air-conditioning system and off-premises station are connected;
When refrigeration demand refrigerant amount is many, heating needs refrigerant amount is few, the unidirectional entrance point of fluid reservoir 5 is connected with the heat exchanger of outdoor unit of air-conditioning system, and its port of export is connected with the heat exchanger indoor unit of air-conditioning system; When refrigeration demand refrigerant amount is few, heating needs refrigerant amount is many, the unidirectional entrance point of fluid reservoir 5 is connected with the heat exchanger indoor unit of air-conditioning system, and its port of export is connected with the heat exchanger of outdoor unit of air-conditioning system;
In air-conditioning system, the stop valve of off-premises station is connected with heat exchanger indoor unit, therefore, when the entrance point of unidirectional fluid reservoir 5 or the port of export are connected with heat exchanger indoor unit, only needs to make it be connected with the stop valve of off-premises station.Regulate, regulated the refrigerant charge of heat exchanger indoor unit and heat exchanger of outdoor unit by cold-producing medium.
Because above-mentioned air-conditioning system has above-mentioned technique effect, above-mentioned refrigerant charging amount adjustment method also should have similarly technique effect, at this not in detailed introduction.
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 present invention.To be apparent for those skilled in the art to the multiple amendment of these embodiments, General Principle as defined herein can without departing from the spirit or scope of the present invention, realize in other embodiments.Therefore, the present invention 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 (8)
1. an air-conditioning system refrigerant charging quantity regulating device, is characterized in that,
Comprise: unidirectional fluid reservoir (5), be connected to first tube connector (1) of the entrance point of described unidirectional fluid reservoir (5), be connected to second tube connector (6) of the port of export of described unidirectional fluid reservoir (5)
。
2. air-conditioning system refrigerant charging quantity regulating device as claimed in claim 1, is characterized in that, also comprise:
First check valve (3), the port of export of described first check valve (3) is connected with described first tube connector (1);
First capillary (2), one end of described first capillary (2) is connected with the port of export of described first check valve (3), and the other end is connected with the entrance point of described first check valve (3);
Second check valve (8), the port of export of described second check valve (8) is connected with described second tube connector (6);
Second capillary (7), two ends of described second capillary (7) are connected with the port of export of described second check valve (8), and the other end is connected with the entrance point of described second check valve (8).
3. air-conditioning system refrigerant charging quantity regulating device as claimed in claim 1, it is characterized in that, described first tube connector (1) is bend pipe; Described second tube connector (6) is variable diameter straight tube.
4. air-conditioning system refrigerant charging quantity regulating device as claimed in claim 3, is characterized in that, described first tube connector (1) and described second tube connector (6) are copper pipe.
5. air-conditioning system refrigerant charging quantity regulating device as claimed in claim 1, it is characterized in that, the entrance point of described first check valve (3) is provided with the first filter (4).
6. air-conditioning system refrigerant charging quantity regulating device as claimed in claim 1, it is characterized in that, the entrance point of described second check valve (8) is provided with the second filter (9).
7. the air-conditioning system refrigerant charging quantity regulating device as described in any one of claim 1-6, is characterized in that, described first tube connector (1) and described first check valve (3) removably connect; Described second tube connector (6) and described second check valve (8) removably connect.
8. a control method for air-conditioning system refrigerant charge, is characterized in that, comprises step:
Detect, to detect under air-conditioning system refrigeration mode refrigerant requirements amount under refrigerant requirements amount and heating mode, draw corresponding refrigeration demand refrigerant amount and heating needs refrigerant amount;
Calculate, under more optimum cooling and warming performance state, calculate the filled difference of refrigeration demand refrigerant amount and heating needs refrigerant amount, and draw adjustment charging amount;
Select, select air-conditioning system refrigerant charging quantity regulating device as described in any one of claim 1-7, described unidirectional fluid reservoir (5) and described adjustment charging amount are matched;
Connect, the indoor set of described air-conditioning system refrigerant charging quantity regulating device and air-conditioning system and off-premises station be connected,
When refrigeration demand refrigerant amount is many, heating needs refrigerant amount is few, the entrance point of described unidirectional fluid reservoir (5) is connected with the heat exchanger of outdoor unit of air-conditioning system, and its port of export is connected with the heat exchanger indoor unit of air-conditioning system; When refrigeration demand refrigerant amount is few, heating needs refrigerant amount is many, the entrance point of described unidirectional fluid reservoir (5) is connected with the heat exchanger indoor unit of air-conditioning system, and its port of export is connected with the heat exchanger of outdoor unit of air-conditioning system;
Regulate, regulated the coolant injection amount of described heat exchanger indoor unit and described heat exchanger of outdoor unit by described charging amount adjusting device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410627687.1A CN104315771A (en) | 2014-11-10 | 2014-11-10 | Device and method for adjusting refrigerant charge volume of air conditioning system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410627687.1A CN104315771A (en) | 2014-11-10 | 2014-11-10 | Device and method for adjusting refrigerant charge volume of air conditioning system |
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| Publication Number | Publication Date |
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| CN104315771A true CN104315771A (en) | 2015-01-28 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410627687.1A Pending CN104315771A (en) | 2014-11-10 | 2014-11-10 | Device and method for adjusting refrigerant charge volume of air conditioning system |
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| DE202008000837U1 (en) * | 2008-01-21 | 2008-06-12 | Sun-Wonder Industrial Co., Ltd., Kueishan Hsiang | Digital coolant pressure gauge |
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2014
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| US20060130511A1 (en) * | 2004-11-30 | 2006-06-22 | William Brown | Internal clearing function for a refrigerant recovery/recharge machine |
| DE202008000837U1 (en) * | 2008-01-21 | 2008-06-12 | Sun-Wonder Industrial Co., Ltd., Kueishan Hsiang | Digital coolant pressure gauge |
| CN201628430U (en) * | 2010-01-25 | 2010-11-10 | 大连三洋压缩机有限公司 | Automatic recovering and charging device of refrigerating system |
| CN203615485U (en) * | 2013-10-17 | 2014-05-28 | 深圳麦克维尔空调有限公司 | Split air conditioning system |
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Application publication date: 20150128 |