CN102338521A - Supercooling liquid impact preventing device of air cooling heat pump air conditioner - Google Patents
Supercooling liquid impact preventing device of air cooling heat pump air conditioner Download PDFInfo
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- CN102338521A CN102338521A CN2011102860333A CN201110286033A CN102338521A CN 102338521 A CN102338521 A CN 102338521A CN 2011102860333 A CN2011102860333 A CN 2011102860333A CN 201110286033 A CN201110286033 A CN 201110286033A CN 102338521 A CN102338521 A CN 102338521A
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Abstract
The invention relates to a liquid impact preventing device of a compressor, in particular to a supercooling liquid impact preventing device of an air cooling heat pump air conditioner, comprising a liquid outlet pipe of a condenser, the condenser, an exhaust pipe of a compressor, a liquid outlet pipe of a liquid pump, the liquid pump, an input pipe of a liquid pump, the compressor, a gas suction pipe of the compressor, a gas-liquid separator, a gas inlet pipe of the gas-liquid separator, a controller, a first liquid level sensor and a second liquid level sensor, wherein the liquid outlet pipe of the condenser, the condenser, the exhaust pipe of the compressor, the compressor, the gas suction pipe of the compressor, the gas-liquid separator and the gas inlet pipe of the gas-liquid separator are connected in sequence. The invention has the advantages that liquid is pumped to the condenser when the liquid in the gas-liquid separator is overmuch so that a refrigerant at the bottom of the condenser is supercooled, and the condition that the liquid refrigerant is absorbed in the compressor to cause liquid impact is prevented; the size of the gas-liquid separator is reduced, and the manufacturing material and the space are saved; and the supercooling liquid impact preventing device of the air cooling heat pump air conditioner is simple in installation and easy for production operation.
Description
Technical field
The present invention relates to the anti-liquid hammer device of compressor, especially a kind of air-cooled heat pump air-conditioning is crossed cold anti-liquid hammer device.
Background technology
Existing air-cooled heat pump air-conditioning system heats in the work in the winter time, because outdoor environment temperature is low, the heating capacity decay is very big, has often satisfied not the requirement of air-conditioning thermic load, and indoor air temperature in air conditioned building reduces, degree of comfort decreased.At this moment; The air-cooled heat pump air-conditioning system can increase the pressure of refrigeration system condenser, reduces the pressure of evaporimeter, makes whole refrigeration system many when needing cold-producing medium than refrigeration when heating; When working conditions change; Having does not have the evaporated liquid cold-producing medium to get back to compressor and be compressed, because the incompressible characteristic of liquid, with " liquid hammer " fault that causes compressor.In order to prevent " liquid hammer ", present air-cooled heat pump air-conditioning system, at the bigger gas-liquid separator of compressor air suction mouth installation volume, this improper increase cost, and take up space.
Summary of the invention
The objective of the invention is to overcome defective of the prior art, adopt a kind of air-cooled heat pump air-conditioning to cross cold anti-liquid hammer device, when liquid is too much in gas-liquid separator; Liquid is extracted into the condenser bottom; Prevent that liquid refrigerant is inhaled into compressor and causes liquid hammer, condenser bottom cold-producing medium is cold excessively, realizes energy-conservation; Easy operating is installed simply.
For realizing above-mentioned purpose; Technical scheme of the present invention is to adopt a kind of air-cooled heat pump air-conditioning to cross cold anti-liquid hammer device; Comprise condenser drain pipe, condenser, compressor exhaust pipe, liquid pump discharging tube, liquid pump, liquid pump input pipe, compressor, compressor suction duct, gas-liquid separator, gas-liquid separator air inlet pipe, controller, first liquid level sensor, second liquid level sensor; Described condenser drain pipe, condenser, compressor exhaust pipe, compressor, compressor suction duct, gas-liquid separator, gas-liquid separator air inlet pipe connect successively, and said first liquid level sensor and second liquid level sensor are installed in gas-liquid separator inside.
Described liquid pump is connected with the bottom of gas-liquid separator through the liquid pump input pipe, is connected with the bottom of condenser through the liquid pump discharging tube.
The output circuit of said controller is connected on the Electric Machine Control line of liquid pump, the input circuit of said first liquid level sensor and the second liquid level sensor access controller.
Basic principle of the present invention: after using the present invention, when the liquid refrigerant that flows to gas-liquid separator is many, refrigerant level raises; When refrigerant level was elevated to second liquid level sensor, the liquid pump signal was left in controller output, and liquid refrigerant is pumped into the condenser bottom from gas-liquid separator; The cold-producing medium of cooler condenser bottom; The liquid level of gas-liquid separator descends, and does not allow compressor from efferent duct inhalant liquid cryogen, effectively prevents compressor liquid hammer fault.
Beneficial effect of the present invention is:
(1) when liquid is too much in the gas-liquid separator, the liquid pump to condenser, is realized that condenser bottom cold-producing medium is cold excessively, prevent that liquid refrigerant is inhaled into compressor and causes liquid hammer.
(2) reduce the size of gas-liquid separator, save the material of making, save the space.
(3) install simply, be easy to production operation.
Description of drawings
Fig. 1 is a sketch map of the present invention.
Fig. 2 is first liquid level sensor of the present invention and the second liquid level sensor installation site sketch map.
Among the figure: 1, condenser drain pipe 2, condenser 3, compressor exhaust pipe 4, liquid pump discharging tube 5, liquid pump 6, liquid pump input pipe 7, compressor 8, compressor suction duct 9, gas-liquid separator 10, gas-liquid separator air inlet pipe 11, controller 12, first liquid level sensor 13, second liquid level sensor.
The specific embodiment
In conjunction with Fig. 1 and Fig. 2 the specific embodiment of the invention is further described:
According to technical scheme provided by the invention; A kind of air-cooled heat pump air-conditioning is crossed cold anti-liquid hammer device; Comprise condenser drain pipe 1, condenser 2, compressor exhaust pipe 3, liquid pump discharging tube 4, liquid pump 5, liquid pump input pipe 6, compressor 7, compressor suction duct 8, gas-liquid separator 9, gas-liquid separator air inlet pipe 10, controller 11, first liquid level sensor 12, second liquid level sensor 13; Described condenser drain pipe 1, condenser 2, compressor exhaust pipe 3, compressor 7, compressor suction duct 8, gas-liquid separator 9, gas-liquid separator air inlet pipe 10 connect successively, and said first liquid level sensor 12 and second liquid level sensor 13 are installed in gas-liquid separator inside.
Described liquid pump 5 is connected with the bottom of gas-liquid separator 9 through liquid pump input pipe 6, is connected through the bottom of liquid pump discharging tube 4 with condenser 2.
The output circuit of described controller 11 is connected on the Electric Machine Control line of liquid pump 5, the input circuit of said first liquid level sensor 12 and second liquid level sensor, 13 access controllers 11.
The course of work of the present invention is: in the refrigeration system of air-cooled heat pump air-conditioning; Compressor 7 is connected through pipeline closed loop successively with condenser 2, choke valve, evaporimeter, gas-liquid separator 9, use the present invention after, when the liquid refrigerant that flows to gas-liquid separator 9 many; Refrigerant level raises; When refrigerant level was elevated to second liquid level sensor 13, liquid pump 5 signals were left in controller 11 outputs, and the liquid level of gas-liquid separator 9 is descended; Prevent that compressor 7 from from gas-liquid separator 9 inhalant liquid cryogens, effectively preventing the liquid hammer fault of compressor 7; Liquid refrigerant is pumped into condenser 2 bottoms from gas-liquid separator 9; The cold-producing medium of cooler condenser 2 bottoms makes the cold-producing medium of condenser 2 bottoms cold excessively, improves air-cooled heat pump air-conditioning system efficient; When liquid level drops to the position of first liquid level sensor 12; Liquid pump 5 signals are closed in controller 11 outputs, keep refrigerant level variation between first liquid level sensor 12 and second liquid level sensor 13 always in the gas-liquid separator 9, air-cooled heat pump air-conditioning system operate as normal.
The advantage of present embodiment is that when liquid was too much in the gas-liquid separator 9, to condenser 2, realization condenser 2 bottom cold-producing mediums were cold excessively, prevent that liquid refrigerant is inhaled into compressor 7 and causes liquid hammer with the liquid pump; Reduce the size of gas-liquid separator 9, save the material of making, save the space; Install simply, be easy to production operation.
Claims (3)
1. an air-cooled heat pump air-conditioning is crossed cold anti-liquid hammer device; It is characterized in that: comprise condenser drain pipe, condenser, compressor exhaust pipe, liquid pump discharging tube, liquid pump, liquid pump input pipe, compressor, compressor suction duct, gas-liquid separator, gas-liquid separator air inlet pipe, controller, first liquid level sensor, second liquid level sensor; Described condenser drain pipe, condenser, compressor exhaust pipe, compressor, compressor suction duct, gas-liquid separator, gas-liquid separator air inlet pipe connect successively, and said first liquid level sensor and second liquid level sensor are installed in gas-liquid separator inside.
2. a kind of air-cooled heat pump air-conditioning according to claim 1 is crossed cold anti-liquid hammer device, it is characterized in that: described liquid pump is connected with the bottom of gas-liquid separator through the liquid pump input pipe, is connected with the bottom of condenser through the liquid pump discharging tube.
3. a kind of air-cooled heat pump air-conditioning according to claim 1 is crossed cold anti-liquid hammer device; It is characterized in that: the output circuit of said controller is connected on the Electric Machine Control line of liquid pump, the input circuit of said first liquid level sensor and the second liquid level sensor access controller.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011102860333A CN102338521A (en) | 2011-09-24 | 2011-09-24 | Supercooling liquid impact preventing device of air cooling heat pump air conditioner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011102860333A CN102338521A (en) | 2011-09-24 | 2011-09-24 | Supercooling liquid impact preventing device of air cooling heat pump air conditioner |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102338521A true CN102338521A (en) | 2012-02-01 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011102860333A Pending CN102338521A (en) | 2011-09-24 | 2011-09-24 | Supercooling liquid impact preventing device of air cooling heat pump air conditioner |
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| CN (1) | CN102338521A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103671044A (en) * | 2012-08-29 | 2014-03-26 | 珠海格力电器股份有限公司 | Method and device for controlling frequency of compressor |
| CN103727695A (en) * | 2012-10-16 | 2014-04-16 | Lg电子株式会社 | Turbo chiller |
| CN104697233A (en) * | 2015-02-10 | 2015-06-10 | 珠海格力电器股份有限公司 | Refrigerating system and operation method for preventing wet compression of compressor of refrigerating system |
| CN109028451A (en) * | 2018-05-24 | 2018-12-18 | 珠海格力电器股份有限公司 | Method, apparatus, computer equipment and the storage medium of gas-liquid separation |
-
2011
- 2011-09-24 CN CN2011102860333A patent/CN102338521A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103671044A (en) * | 2012-08-29 | 2014-03-26 | 珠海格力电器股份有限公司 | Method and device for controlling frequency of compressor |
| CN103727695A (en) * | 2012-10-16 | 2014-04-16 | Lg电子株式会社 | Turbo chiller |
| CN103727695B (en) * | 2012-10-16 | 2016-08-17 | Lg电子株式会社 | turbo refrigerating machine |
| CN104697233A (en) * | 2015-02-10 | 2015-06-10 | 珠海格力电器股份有限公司 | Refrigerating system and operation method for preventing wet compression of compressor of refrigerating system |
| CN109028451A (en) * | 2018-05-24 | 2018-12-18 | 珠海格力电器股份有限公司 | Method, apparatus, computer equipment and the storage medium of gas-liquid separation |
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| C06 | Publication | ||
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| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20120201 |