CN201050881Y - Heat pump water heater for preventing refrigerant migration - Google Patents
Heat pump water heater for preventing refrigerant migration Download PDFInfo
- Publication number
- CN201050881Y CN201050881Y CNU2007200705652U CN200720070565U CN201050881Y CN 201050881 Y CN201050881 Y CN 201050881Y CN U2007200705652 U CNU2007200705652 U CN U2007200705652U CN 200720070565 U CN200720070565 U CN 200720070565U CN 201050881 Y CN201050881 Y CN 201050881Y
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- Prior art keywords
- compressor
- condenser
- refrigerant migration
- refrigerant
- stopper
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Abstract
The utility model relates to a heat pump water heater with eliminated coolant transportation, which comprises a motor, a fan, an evaporator, a steam separator, a compressor, a water tank, a condenser, and a throttle device. The utility model further comprises a coolant transportation stop device, the water tank is provided with the condenser inside, while one end of the condenser via the coolant transportation stop device, the compressor, and the steam separator is connected with one end of the evaporator, and another end of the condenser via the stop device and the throttle device is connected with another end of the evaporator. Compared with prior art, the utility model can effectively stop the transportation of high-temperature coolant from the condenser into the evaporator and the compressor, thereby improving operation stability of the compressor.
Description
Technical field
The utility model relates to a kind of Teat pump boiler that prevents the refrigerant migration, relates in particular to a kind of Teat pump boiler that prevents the condenser side refrigerant to evaporimeter and compressor internal migration.
Background technology
In heat pump water heater system,, so behind compressor start, accumulate in liquid refrigerants in the evaporimeter and can be inhaled into compresser cylinder and can form liquid hammer if a large amount of refrigerant migrates to vaporizer side and compressor inside from condenser; The liquid refrigerants that accumulates in compressor inside can be inhaled in the friction pair of the pump housing, reduces the lubricant effect of refrigerator oil; In the compressor operation process, its this cognition heating, the liquid refrigerants of compressor inside can rise and sharply evaporation (foaming) by Yin Wendu, causes serious oil starvation in the compressor short time.The problems referred to above may make pump housing friction pair seriously wear away, and cause the compressor cisco unity malfunction.For preventing compressor damage, need improve system, the refrigerant in the anti-locking system mainly concentrates on evaporimeter and compressor inside.
The heat pump water heater system schematic diagram as shown in Figure 1, comprise motor 1, fan 2, evaporimeter 3, gas-liquid separator 4, compressor 5, water tank 6, condenser 7, throttling arrangement 8, most of middle-size and small-size water heater is a heat accumulating type at present, and condenser and water tank are made of one, and condenser (coil pipe) is among the water tank.Though this scheme is saved the space, cost is low relatively, has potential technological deficiency.When water temperature in the water tank reached design temperature (such as 55 degree), compressor quit work.Because it is very good that the heat-insulating property of water tank requires, basically temperature has only the decline in several years within one day, therefore, condenser just is in the higher temperature environment always, evaporimeter/compressor then is cooled to environment temperature quickly, the very big temperature contrast of long-time existence between evaporimeter and condenser.Like this, the constantly evaporation of refrigerant in the high temperature condenser-＞migration-＞condensation in the evaporimeter of low temperature and compressor, liquid refrigerants all evaporates end in condenser.The direct result of refrigerant migration is exactly after compressor starts once more, and a large amount of liquid refrigerants can be inhaled into compresser cylinder and can form liquid hammer and cause; The liquid refrigerants that accumulates in compressor inside can be inhaled in the friction pair of the pump housing, reduces the lubricant effect of refrigerator oil; In the compressor operation process, its this cognition heating, the liquid refrigerants of compressor inside can rise and sharply evaporation (foaming) by Yin Wendu, causes serious oil starvation in the compressor short time.The problems referred to above may make pump housing friction pair seriously wear away, and cause the compressor cisco unity malfunction.Because this phenomenon is a normality, therefore can have a strong impact on the reliability of compressor when the heat-accumulation type hot pump water heater uses.
The utility model content
The purpose of this utility model is exactly a kind of Teat pump boiler that prevents the refrigerant migration that improves reliability in the compressor operating that provides for the weak point that overcomes above-mentioned prior art existence.
The purpose of this utility model can be achieved through the following technical solutions: a kind of Teat pump boiler that prevents the refrigerant migration, comprise motor, fan, evaporimeter, gas-liquid separator, compressor, water tank, condenser, throttling arrangement, it is characterized in that, this Teat pump boiler also comprises refrigerant migration stopper, be provided with condenser in the described water tank, this condenser one end links to each other with evaporimeter one end through refrigerant migration stopper, compressor, gas-liquid separator, and the condenser other end links to each other with the evaporimeter other end through refrigerant migration stopper, throttling arrangement.
Described refrigerant migration stopper has two, and one is arranged on compressor exhaust pipe between the condenser inlet, and another is arranged between condensator outlet and the evaporator inlet.
Described refrigerant migration stopper is arranged on compressor exhaust pipe between the condenser inlet, the check valve of this refrigerant migration stopper for opening automatically under the effect of pressure at expulsion.
Described condenser is a coil pipe, is arranged in the water tank.
The state that refrigerant migration stopper is always out in the described compressor normal operation process.
Refrigerant migration stopper was a closed condition after described compressor quit work.
Compared with prior art; the utility model at compressor exhaust pipe between the condenser inlet, between condensator outlet and the evaporator inlet stopper is set respectively; stopper opening and closing under stage such as be controlled at compressor operation, shut down, restart; from stoping the condenser high temperature refrigerant effectively to the migration of evaporimeter and compressor inside; prevent to strengthen protection to compressor because of refrigerant moves liquid hammer, refrigerant dilution refrigeration machine oil and the compressor short time oil starvation that causes.Compressor also normally starts simultaneously, guarantees the normal operation of compressor.
Description of drawings
Fig. 1 is existing heat pump water heater system structural representation;
Fig. 2 is the utility model heat pump water heater system structural representation.
The specific embodiment
Below in conjunction with specific embodiment, the utility model is described in further detail.
Embodiment
As shown in Figure 2, a kind of Teat pump boiler that prevents the refrigerant migration, a kind of Teat pump boiler that prevents the refrigerant migration, comprise motor 1, fan 2, evaporimeter 3, gas-liquid separator 4, compressor 5, water tank 6, condenser 7, throttling arrangement 8, refrigerant migration stopper 9,10, described condenser 7 is a coil pipe, be arranged in the water tank 6, move stopper 9 at compressor 5 blast pipes between condenser 7 inlets refrigerant being set, a refrigerant migration stopper 10 is set respectively between condenser 7 outlets and evaporimeter 3 inlets, in compressor 5 normal operation processes, these two devices are opened all the time, to guarantee that refrigerant unimpededly passes through, form complete circulation.Fig. 2 dotted arrow is represented water circulation system, and the below inlet enters water tank to cold water along the direction of arrow from water tank, and hot water exports outflow along arrow from the top; Fig. 2 solid arrow is represented coolant circulating system, and after water temperature reached design temperature in the water tank 6, compressor 7 quit work, and so latter two stopper 9 cuts out, and promptly seals the two ends of condenser, and after this its inner refrigerant can't be moved to compressor 5 and evaporimeter 3.When compressor 5 need again task (in such as water tank water temperature be lower than in the lowest temperature, water tank 6 of setting hot water finish using add cold water and need heat etc.), before compressor start, two stoppers are opened and (are adopted the situation of check valve for device 9, this moment, device 9 was failure to actuate, machine 5 to be compressed starts the back and opens automatically under the effect of pressure at expulsion), system carries out pressure balance, when treating that the suction and discharge pressure at both sides is lower than the pressure differential of compressor start qualification, restart compressor 5, to guarantee the smooth startup of compressor.Adopt the system of evaporimeter, condenser transposition for defrosting; because defrosting is an of short duration transient working condition; therefore in system when defrosting; in order to reduce the complexity of running control; between compressor short time down period; two stoppers can stay open state (for the situation of device 9 employing check valves, may be in closed condition this moment, but do not influence the startup of compressor).
Claims (4)
1. Teat pump boiler that prevents refrigerant migration, comprise motor, fan, evaporimeter, gas-liquid separator, compressor, water tank, condenser, throttling arrangement, it is characterized in that, also comprise refrigerant migration stopper, be provided with condenser in the described water tank, this condenser one end links to each other with evaporimeter one end through refrigerant migration stopper, compressor, gas-liquid separator, and the condenser other end links to each other with the evaporimeter other end through refrigerant migration stopper, throttling arrangement.
2. a kind of Teat pump boiler that prevents the refrigerant migration according to claim 1, it is characterized in that, described refrigerant migration stopper has two, and one is arranged on compressor exhaust pipe between the condenser inlet, and another is arranged between condensator outlet and the evaporator inlet.
3. a kind of Teat pump boiler that prevents the refrigerant migration according to claim 1 and 2, it is characterized in that, described refrigerant migration stopper is arranged on compressor exhaust pipe between the condenser inlet, the check valve of this refrigerant migration stopper for opening automatically under the effect of pressure at expulsion.
4. a kind of Teat pump boiler that prevents the refrigerant migration according to claim 1 is characterized in that described condenser is a coil pipe, is arranged in the water tank.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200705652U CN201050881Y (en) | 2007-06-01 | 2007-06-01 | Heat pump water heater for preventing refrigerant migration |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200705652U CN201050881Y (en) | 2007-06-01 | 2007-06-01 | Heat pump water heater for preventing refrigerant migration |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201050881Y true CN201050881Y (en) | 2008-04-23 |
Family
ID=39337370
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007200705652U Expired - Lifetime CN201050881Y (en) | 2007-06-01 | 2007-06-01 | Heat pump water heater for preventing refrigerant migration |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201050881Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109269134A (en) * | 2018-09-12 | 2019-01-25 | 珠海格力电器股份有限公司 | Heat exchange system and heat exchange system control method |
| CN111237979A (en) * | 2020-03-04 | 2020-06-05 | 珠海格力电器股份有限公司 | Control method for improving circulating refrigerant quantity and air conditioner |
-
2007
- 2007-06-01 CN CNU2007200705652U patent/CN201050881Y/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109269134A (en) * | 2018-09-12 | 2019-01-25 | 珠海格力电器股份有限公司 | Heat exchange system and heat exchange system control method |
| CN109269134B (en) * | 2018-09-12 | 2019-12-17 | 珠海格力电器股份有限公司 | Heat exchange system control method |
| CN111237979A (en) * | 2020-03-04 | 2020-06-05 | 珠海格力电器股份有限公司 | Control method for improving circulating refrigerant quantity and air conditioner |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20080423 |