CN202304164U - Supercooling liquid-slugging preventive device for air-cooled heat pump air-conditioner - Google Patents
Supercooling liquid-slugging preventive device for air-cooled heat pump air-conditioner Download PDFInfo
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- CN202304164U CN202304164U CN2011203603426U CN201120360342U CN202304164U CN 202304164 U CN202304164 U CN 202304164U CN 2011203603426 U CN2011203603426 U CN 2011203603426U CN 201120360342 U CN201120360342 U CN 201120360342U CN 202304164 U CN202304164 U CN 202304164U
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Abstract
The utility model relates to liquid slugging preventive devices for compressors, in particular to a supercooling liquid-slugging preventive device for an air-cooled heat pump air-conditioner, which comprises a condenser liquid outlet pipe, a condenser, a compressor exhaust pipe, a liquid pump liquid discharge pipe, a liquid pump, a liquid pump input pipe, a compressor, a compressor air suction pipe, an air-liquid separator, an air inlet pipe of the air-liquid separator, a controller, a first liquid level sensor and a second liquid level sensor. The condenser liquid outlet pipe, the condenser, the compressor exhaust pipe, the compressor, the compressor air suction pipe, the air-liquid separator and the air inlet pipe of the air-liquid separator are connected sequentially. The supercooling liquid-slugging preventive device for the air-cooled heat pump air-conditioner has the advantages that when liquid in the air-liquid separator is excessive, the liquid is pumped into the condenser to realize supercooling of refrigerant at the bottom of the condenser, so that liquid refrigerant can be prevented from being sucked into the compressor to result in liquid slugging; the size of the air-liquid separator is reduced, and accordingly manufacturing materials and space are saved; and the device is simple in mounting and easy in production and operation.
Description
Technical field
The utility model relates to the anti-liquid hammer device of compressor, and 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 purpose of the utility model is to overcome defective of the prior art, adopts 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; The technical scheme of the utility model 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.
The basic principle of the utility model: after using the utility model, 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.
The beneficial effect of the utility model 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 the sketch map of the utility model.
Fig. 2 is first liquid level sensor and the second liquid level sensor installation site sketch map of the utility model.
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 utility model specific embodiment is further described:
The technical scheme that provides according to the utility model; 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 utility model 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 utility model 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 |
|---|---|---|---|
| CN2011203603426U CN202304164U (en) | 2011-09-24 | 2011-09-24 | Supercooling liquid-slugging preventive device for air-cooled heat pump air-conditioner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203603426U CN202304164U (en) | 2011-09-24 | 2011-09-24 | Supercooling liquid-slugging preventive device for air-cooled heat pump air-conditioner |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202304164U true CN202304164U (en) | 2012-07-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011203603426U Expired - Fee Related CN202304164U (en) | 2011-09-24 | 2011-09-24 | Supercooling liquid-slugging preventive device for air-cooled heat pump air-conditioner |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202304164U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105298797A (en) * | 2014-07-02 | 2016-02-03 | 艾默生网络能源有限公司 | Liquid impact preventing device for compressor, control method of liquid impact preventing device and refrigeration air conditioner |
-
2011
- 2011-09-24 CN CN2011203603426U patent/CN202304164U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105298797A (en) * | 2014-07-02 | 2016-02-03 | 艾默生网络能源有限公司 | Liquid impact preventing device for compressor, control method of liquid impact preventing device and refrigeration air conditioner |
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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: 20120704 Termination date: 20120924 |