CN201945110U - Cooling medium amount control device and air-conditioning unit with control device - Google Patents
Cooling medium amount control device and air-conditioning unit with control device Download PDFInfo
- Publication number
- CN201945110U CN201945110U CN2011200101396U CN201120010139U CN201945110U CN 201945110 U CN201945110 U CN 201945110U CN 2011200101396 U CN2011200101396 U CN 2011200101396U CN 201120010139 U CN201120010139 U CN 201120010139U CN 201945110 U CN201945110 U CN 201945110U
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Abstract
The utility model provides a cooling medium amount control device and an air-conditioning unit with the control device. The cooling medium amount control device comprises a cooling medium transfer tank, wherein the cooling medium transfer tank comprises a liquid inlet, and the liquid inlet is communicated with a gas-liquid separator of the air-conditioning unit. The air-conditioning unit comprises the cooling medium amount control device. A low-pressure cooling medium in the gas-liquid separator is transferred into the cooling medium transfer tank through a liquid inlet valve, thereby reducing the liquid level of the liquid cooling medium in the gas-liquid separator, achieve the state control of the gas-liquid separator, the cooling medium transfer tank and other intermediate transition containers, and further ensure the safety of the operation of the air-conditioning unit and the effectiveness of the circulating amount of the cooling medium.
Description
Technical field
The utility model relates to field of air conditioning, more specifically, relates to a kind of coolant quantity control device and has the air-conditioning unit of this control device.
Background technology
The air-conditioning unit is widely used in the various occasions that we work, live at present, for we provide comfortable work and living environment.Along with people improve day by day to the requirement of air-conditioning system range of operation, traditional air-conditioning unit can not be met the need of market.Therefore, when guaranteeing comfortableness, be necessary further to improve the reliability of air-conditioning unit.
Common air-conditioning refrigeration system comprises compressor, high temperature heat source heat exchanger, throttle part, low-temperature heat source heat exchanger and piping system, can the assurance system under certain condition of work the security and the validity of operation.But, when service condition surpasses certain limit, then can't guarantee system's reliability service because systemic circulation coolant quantity regulating power is limited.When system is out of service, if it is too much to flow into the liquid refrigerants of gas-liquid separator, can cause liquid refrigerants to be back to compressor, cause the compressor liquid hammer and damage, influence the security of system.During normal the operation, if the cold medium shortage of circulation in the system then can cause the refrigerating capacity deficiency, refrigeration is not good, greatly reduces the validity of air conditioner refrigeration.
The utility model content
The utility model aims to provide the coolant quantity control device of a kind of liquid refrigerants amount of effectively control system, the validity of guaranteeing system's operation and security and has the air-conditioning unit of this control device.
According to an aspect of the present utility model, a kind of coolant quantity control device is provided, comprise the refrigerant transfer tank, the refrigerant transfer tank has inlet, and inlet is connected by the gas-liquid separator of feed liquor valve with the air-conditioning unit.
Further, the coolant quantity control device also comprises equilibrated valve, and an end of equilibrated valve is connected with the pressure balance mouth of refrigerant transfer tank, and its other end is connected with gas-liquid separator.
Further, the coolant quantity control device also comprises tapping valve, and an end of tapping valve is connected with the liquid outlet of refrigerant transfer tank, and its other end is connected with the middle pressure pipe highway section of air-conditioning unit.
Further, the coolant quantity control device also comprises pressurizing valve, and an end of pressurizing valve is connected with the refrigerant transfer tank, and its other end is connected with the high-voltage tube highway section of air-conditioning unit.
Further, the valve in the coolant quantity control device is magnetic valve.
Further, equilibrated valve is connected with pressure balance mouth by pressure-equalizing passageway, and pressure balance mouth is arranged at the lower end of refrigerant transfer tank, and pressure-equalizing passageway passes pressure balance mouth and extends upward, and the outlet of pressure-equalizing passageway is higher than inlet.
According to another aspect of the present utility model, a kind of air-conditioning unit is provided, the air-conditioning unit has aforesaid coolant quantity control device.
Adopt coolant quantity control device of the present utility model and have the air-conditioning unit of this control device, by the feed liquor valve low pressure refrigerant of gas-liquid separator is transferred to the refrigerant transfer tank, reduce the liquid refrigerants liquid level of gas-liquid separator inside, prevented that liquid refrigerants is back to compressor, and compressor is damaged because of liquid hammer, guaranteed the security of compressor operating.
Description of drawings
The accompanying drawing that constitutes the application's a part is used to provide further understanding of the present utility model, and illustrative examples of the present utility model and explanation thereof are used to explain the utility model, do not constitute improper qualification of the present utility model.In the accompanying drawings:
Fig. 1 is the internal structure schematic diagram that has the air-conditioning unit of coolant quantity control device according to of the present utility model.
The specific embodiment
Below with reference to the accompanying drawings and in conjunction with the embodiments, describe the utility model in detail.
According to coolant quantity control device of the present utility model, comprise refrigerant transfer tank 20, refrigerant transfer tank 20 has inlet, and inlet is connected with the gas-liquid separator 11 of air-conditioning unit by feed liquor valve 22.
As shown in Figure 1, because refrigerant transfer tank 20 is connected with gas-liquid separator 11 by feed liquor valve 22, therefore, when the liquid level in the gas-liquid separator 11 is too high, open feed liquor valve 22, the low pressure refrigerant in the gas-liquid separator 11 is transferred to refrigerant transfer tank 20, reach control the fluid level condition of gas-liquid separator 11, thereby guarantee the validity of air-conditioning unit operation refrigerant circulation, guarantee the security of compressor operating simultaneously.According to an embodiment of the present utility model, when the air-conditioning unit is out of service, liquid refrigerants in the gas-liquid separator 11 can be transferred to refrigerant transfer tank 20 by feed liquor valve 22, thereby effectively reduce the liquid level in the gas-liquid separator 11, guarantee the security when system starts once more.
As shown in Figure 1, preferably, the coolant quantity control device also comprises equilibrated valve 21, and an end of equilibrated valve 21 is connected with the pressure balance mouth of refrigerant transfer tank 20, and its other end is connected with gas-liquid separator 11.Equilibrated valve is connected with pressure balance mouth by pressure-equalizing passageway, and pressure balance mouth is arranged at the lower end of refrigerant transfer tank 20, and pressure-equalizing passageway passes pressure balance mouth and extends upward, and the outlet of pressure-equalizing passageway is higher than inlet.In the present embodiment, when opening feed liquor valve 22, open equilibrated valve 21, make gas-liquid separator 11 and refrigerant transfer tank 20 keep air pressure balance, guarantee that the refrigerant in the gas-liquid separator 11 can flow into refrigerant transfer tank 20.In addition, pressure-equalizing passageway passes pressure balance mouth and extend in the refrigerant transfer tank 20, and extend upwardly to the top of the liquid outlet of refrigerant transfer tank 20, thereby can prevent that the refrigerant in the refrigerant transfer tank 20 too much is back in gas-liquid separator 11 or the compressor 10 by this pipeline.
Preferably, the coolant quantity control device also comprises pressurizing valve 23, and an end of pressurizing valve 23 is connected with refrigerant transfer tank 20, and its other end is connected with the high-voltage tube highway section 13 of air-conditioning unit.The coolant quantity control device also comprises tapping valve 24, and an end of tapping valve 24 is connected with the liquid outlet of refrigerant transfer tank 20, and its other end is connected with the middle pressure pipe highway section 17 of air-conditioning unit.
According to an embodiment of the present utility model, the pressure and temperature parameter of detection system when air-conditioning system is moved, if systemic circulation cold medium shortage, then by the liquid refrigerants in the control release refrigerant transfer tank 20, with its middle pressure pipe highway section 17 that is transferred to system, so just can guarantee the validity of system's operation.As shown in Figure 1, when system normally moves, divided for three steps realized the transfer of refrigerant.At first, close pressurizing valve 23 and tapping valve 24, open the equilibrated valve 21 and the feed liquor valve 22 of refrigerant transfer tank 20 then, the low pressure refrigerant in the gas-liquid separator 11 is transferred in the refrigerant transfer tank 20.Secondly, closing presure balanced valve 21 and feed liquor valve 22, open pressurizing valve 23 and tapping valve 24, because pressurizing valve 23 is connected with high-voltage tube highway section 13, under the pressure effect in high-voltage tube highway section 13, refrigerant in the refrigerant transfer tank 20 is transferred to the middle pressure pipe highway section 17 of air-conditioning unit by tapping valve 24, makes refrigerant add to the in service of coolant circulating system.At last, when the refrigerant of mend makes the coolant quantity that circulates in the system enough, close pressurizing valve 23 and tapping valve 24, refrigerant transfer tank 20 returns to original state.
Preferably, the valve in the coolant quantity control device is magnetic valve.
Specifically, feed liquor valve 22, equilibrated valve 21, pressurizing valve 23 and tapping valve 24 are magnetic valve, to reach the accurate control to the cold medium flux that passes through these valves, also help system's controlling rapidly and accurately these valves simultaneously.
The utility model also provides a kind of air-conditioning unit, and the air-conditioning unit has aforesaid coolant quantity control device.
As shown in Figure 1, except comprising aforesaid coolant quantity control device, the air-conditioning unit also comprises conventional components such as compressor 10, indoor heat exchanger 19, outdoor heat exchanger 15 and cross valve 14, is not described in detail in this.The air-conditioning unit has been guaranteed the effective circulation coolant quantity of air-conditioning unit and the security of system's operation by the coolant quantity control device.
As can be seen from the above description, the utility model the above embodiments have realized following technique effect:
1, when the air-conditioning unit operation, the pressure and temperature parameter of detection system, if the systemic circulation cold medium shortage, then by the liquid refrigerants in the control release refrigerant transfer tank, with its middle pressure pipe highway section that is transferred to system, so just can guarantee the validity of system's operation;
2, when the air-conditioning unit is out of service, the refrigerant of gas-liquid separator is transferred to the refrigerant transfer tank, guarantee the security when compressor is restarted.
Be preferred embodiment of the present utility model only below, be not limited to the utility model, for a person skilled in the art, the utility model can have various changes and variation.All within spirit of the present utility model and principle, any modification of being done, be equal to replacement, improvement etc., all should be included within the protection domain of the present utility model.
Claims (7)
1. a coolant quantity control device is characterized in that, comprises refrigerant transfer tank (20), and described refrigerant transfer tank (20) has inlet, and described inlet is connected with the gas-liquid separator (11) of air-conditioning unit by feed liquor valve (22).
2. coolant quantity control device according to claim 1, it is characterized in that, also comprise equilibrated valve (21), an end of described equilibrated valve (21) is connected with the pressure balance mouth of described refrigerant transfer tank (20), and its other end is connected with described gas-liquid separator (11).
3. coolant quantity control device according to claim 2, it is characterized in that, also comprise tapping valve (24), an end of described tapping valve (24) is connected with the described liquid outlet of described refrigerant transfer tank (20), and its other end is connected with the middle pressure pipe highway section (17) of air-conditioning unit.
4. coolant quantity control device according to claim 3 is characterized in that, also comprises pressurizing valve (23), and an end of described pressurizing valve (23) is connected with described refrigerant transfer tank (20), and its other end is connected with the high-voltage tube highway section (13) of air-conditioning unit.
5. according to each described coolant quantity control device in the claim 1 to 4, it is characterized in that the valve in the described coolant quantity control device is magnetic valve.
6. coolant quantity control device according to claim 2, it is characterized in that, described equilibrated valve is connected with described pressure balance mouth by pressure-equalizing passageway, described pressure balance mouth is arranged at the lower end of described refrigerant transfer tank (20), described pressure-equalizing passageway passes described pressure balance mouth and extends upward, and the outlet of described pressure-equalizing passageway is higher than described inlet.
7. an air-conditioning unit is characterized in that, described air-conditioning unit has each described coolant quantity control device in the claim 1 to 6.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200101396U CN201945110U (en) | 2011-01-10 | 2011-01-10 | Cooling medium amount control device and air-conditioning unit with control device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200101396U CN201945110U (en) | 2011-01-10 | 2011-01-10 | Cooling medium amount control device and air-conditioning unit with control device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201945110U true CN201945110U (en) | 2011-08-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011200101396U Expired - Lifetime CN201945110U (en) | 2011-01-10 | 2011-01-10 | Cooling medium amount control device and air-conditioning unit with control device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201945110U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102042724B (en) * | 2009-10-13 | 2012-07-04 | 珠海格力电器股份有限公司 | Refrigerant control unit, air conditioner refrigeration system and refrigerant cycle control methods |
| CN102589217A (en) * | 2011-01-10 | 2012-07-18 | 珠海格力电器股份有限公司 | Refrigerant quantity control device, refrigerant quantity control method and air conditioner unit with control device |
| CN103900300A (en) * | 2012-12-24 | 2014-07-02 | 美的集团股份有限公司 | Air conditioner and control method thereof |
-
2011
- 2011-01-10 CN CN2011200101396U patent/CN201945110U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102042724B (en) * | 2009-10-13 | 2012-07-04 | 珠海格力电器股份有限公司 | Refrigerant control unit, air conditioner refrigeration system and refrigerant cycle control methods |
| CN102589217A (en) * | 2011-01-10 | 2012-07-18 | 珠海格力电器股份有限公司 | Refrigerant quantity control device, refrigerant quantity control method and air conditioner unit with control device |
| CN103900300A (en) * | 2012-12-24 | 2014-07-02 | 美的集团股份有限公司 | Air conditioner and control method thereof |
| CN103900300B (en) * | 2012-12-24 | 2016-03-30 | 美的集团股份有限公司 | Air-conditioner and control method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20110824 Effective date of abandoning: 20160203 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |