CN201425395Y - Automatic defrosting device of heat pump water heater - Google Patents
Automatic defrosting device of heat pump water heater Download PDFInfo
- Publication number
- CN201425395Y CN201425395Y CN2009201321682U CN200920132168U CN201425395Y CN 201425395 Y CN201425395 Y CN 201425395Y CN 2009201321682 U CN2009201321682 U CN 2009201321682U CN 200920132168 U CN200920132168 U CN 200920132168U CN 201425395 Y CN201425395 Y CN 201425395Y
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- CN
- China
- Prior art keywords
- defrosting
- compressor
- heat
- condenser
- evaporimeter
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- Expired - Fee Related
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Abstract
The utility model discloses an automatic defrosting device of a heat pump water heater, which comprises a compressor, a four-way valve, a condenser, a throttling device, an evaporator, a hot water pump, an evaporation fan and a temperature-sensing probe. High-pressure and high-temperature gas is discharged from a gas vent hole of the compressor to defrost the evaporator, and a refrigerant is changed into a high-pressure gas-liquid mixture which flows through the throttling device to enter the evaporator for heat exchange, and flows into the compressor through the four-way valve to complete a cycle. The device is a technical device which combines defrosting through a hot gas bypass valve with defrosting through a four-way reversing valve, and makes up for the disadvantages of the two defrosting manners; the heat generated by a hot water pump is used for defrosting, so that the efficiency of the unit is improved; the defrosting system is simple; and the automatic defrosting device has the characteristics of short defrosting time, high speed, clean defrosting, energy conversation and the like.
Description
Technical field
The utility model relates to a kind of device of Teat pump boiler, relates in particular to a kind of automatic defrosting device of Teat pump boiler.
Background technology
When external environment is lower than 5 ℃ or air humidity when big, use just frosting easily of Teat pump boiler, along with thickening of frost layer, evaporating temperature decline, heating capacity decline, fan performance decay and compressor will occur and return phenomenons such as liquid, these all have a strong impact on system's operation.
The Defrost mode of Teat pump boiler is most widely used with hot gas bypass valve defrosting, electrical heating defrosting and four-way change-over valve defrosting at present.The hot gas bypass valve defrosting is to guide the HTHP exhaust into evaporimeter by exhaust outlet of compressor by hot gas bypass valve; defrost by the heat release of HTHP cooling medium liquefaction; because the heat of high-pressure side refrigerant still comes from the heat that absorbs in the evaporimeter; when temperature lower; the defrosting longer duration; to not have enough heat absorption, and make main frame enter the protectiveness stopped status.The electrical heating defrosting realizes heating defrosting by arrange electric heater in evaporimeter, and this Defrost mode is simple, but must could defrost under the system-down condition; defrosting time is long, and consumed power is big, and efficient is low; and the electric heating tube difficult arrangement is unfavorable for using.The four-way change-over valve defrosting is to commutate by cross valve, with evaporimeter and condenser role exchange, the realization defrosting, defrost system is fairly simple, reach the defrosting purpose with the heat that consumes hot water in the heat exchanger, inhale during defrosting, the pressure at expulsion conversion is violent, compressor impacted big, supply water temperature fluctuation big (absorb heat from hot water, be used for defrosting) heating efficiency is low.
The utility model content
Technical problem to be solved in the utility model is to provide a kind of automatic defrosting device of Teat pump boiler, this device combines the technique device of hot gas bypass valve defrosting and four-way change-over valve defrosting, and having remedied the shortcoming of these two kinds of Defrost modes, the heat that utilizes heat-exchanger pump to produce defrosts.
The utility model is achieved in that
A kind of automatic defrosting device of Teat pump boiler, comprise compressor, cross valve, condenser, throttling arrangement, evaporimeter, heat-exchanger pump, evaporating fan, temperature-sensing probe, wherein compressor is communicated with condenser, evaporimeter respectively by cross valve, evaporimeter is communicated with condenser by throttling arrangement again, condenser is communicated with heat-exchanger pump by feed pipe, and evaporating fan and temperature-sensing probe are installed on the support of evaporimeter.
When temperature-sensing probe is sensed coil temperature and is less than or equal to 5 ℃, evaporating fan shuts down, high temperature and high pressure gas is discharged by the steam vent of compressor, the cross valve of flowing through enters evaporimeter, evaporimeter is defrosted, and refrigerant becomes the high-pressure gas-liquid mixture throttling arrangement of flowing through and enters condenser and carry out heat exchange, and the heat that heat-exchanger pump is transferred to condenser is taken away, flow into compressor through cross valve again, form a loop.When temperature-sensing probe was sensed coil temperature more than or equal to 20 ℃, evaporating fan entered running, and system withdraws from the defrosting program, and Teat pump boiler enters normal operating condition.
The utility model combines the technique device of hot gas bypass valve defrosting and four-way change-over valve defrosting, and remedied the shortcoming of these two kinds of Defrost modes, the heat that utilizes heat-exchanger pump to produce defrosts, improved the efficient of unit, defrost system is simple, has characteristics such as defrosting time weak point, speed is fast, defrosting is clean, energy-conservation.
Description of drawings
Fig. 1 the utility model system principle schematic diagram.
Among the figure 1, compressor, 2, cross valve, 3, condenser, 4, throttling arrangement, 5, evaporimeter, 6, heat-exchanger pump, 7, evaporating fan, 8, temperature-sensing probe.
The specific embodiment
The utility model is described in further detail below in conjunction with drawings and Examples.
As shown in Figure 1, compressor 1 is communicated with condenser 3, evaporimeter 5 respectively by cross valve 2, evaporimeter 5 is communicated with condenser 3 by throttling arrangement 4 again, condenser 3 is communicated with heat-exchanger pump 6 by feed pipe, evaporating fan 7 and temperature-sensing probe 8 are installed on the support of evaporimeter 5, and compressor 1, cross valve 2, condenser 3, throttling arrangement 4, evaporimeter 5 form a refrigeration system pipe.
When temperature-sensing probe 8 is sensed coil temperature and is less than or equal to 5 ℃, evaporating fan 7 shuts down, high temperature and high pressure gas is discharged by the steam vent of compressor 1, the cross valve 2 of flowing through enters evaporimeter 5, evaporimeter 5 is defrosted, and refrigerant becomes the high-pressure gas-liquid mixture throttling arrangement 4 of flowing through and enters condenser 3 and carry out heat exchange, and the heat that heat-exchanger pump 6 is transferred to condenser 3 is taken away, flow into compressor through cross valve 2 again, finish a circulation.When temperature-sensing probe 8 was sensed coil temperature more than or equal to 20 ℃, evaporating fan 7 entered running, and system withdraws from the defrosting program, and Teat pump boiler enters normal operating condition.
The utility model combines the technique device of hot gas bypass valve defrosting and four-way change-over valve defrosting, and more Mended the shortcoming of these two kinds of Defrost modes, the heat that utilizes heat-exchanger pump to produce defrosts, and has improved unit Efficient, defrost system is simple, has short, the characteristics such as speed fast, defrosting is clean, energy-conservation of defrosting time.
Claims (1)
1, a kind of automatic defrosting device of Teat pump boiler, it is characterized in that: the automatic defrosting device of described Teat pump boiler comprises compressor, cross valve, condenser, throttling arrangement, evaporimeter, heat-exchanger pump, evaporating fan, temperature-sensing probe, wherein heat-exchanger pump is installed on the feed pipe and with condenser and is communicated with, evaporating fan and temperature-sensing probe are installed on the support of evaporimeter, compressor is communicated with condenser, evaporimeter respectively by cross valve, and evaporimeter is communicated with condenser by throttling arrangement again.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201321682U CN201425395Y (en) | 2009-05-22 | 2009-05-22 | Automatic defrosting device of heat pump water heater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201321682U CN201425395Y (en) | 2009-05-22 | 2009-05-22 | Automatic defrosting device of heat pump water heater |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201425395Y true CN201425395Y (en) | 2010-03-17 |
Family
ID=42024846
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009201321682U Expired - Fee Related CN201425395Y (en) | 2009-05-22 | 2009-05-22 | Automatic defrosting device of heat pump water heater |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201425395Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105593619A (en) * | 2013-04-17 | 2016-05-18 | 张小明 | Pulse temperature increase energy-saving device for use with compression-type cooling or heating system |
| CN105928243A (en) * | 2016-06-17 | 2016-09-07 | 科希曼电器有限公司 | Combined type multifunctional heat pump system |
-
2009
- 2009-05-22 CN CN2009201321682U patent/CN201425395Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105593619A (en) * | 2013-04-17 | 2016-05-18 | 张小明 | Pulse temperature increase energy-saving device for use with compression-type cooling or heating system |
| CN105593619B (en) * | 2013-04-17 | 2018-07-31 | 张小明 | A kind of temperature-jump energy saver on compression-type refrigeration or heating system |
| CN105928243A (en) * | 2016-06-17 | 2016-09-07 | 科希曼电器有限公司 | Combined type multifunctional heat pump system |
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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: 20100317 Termination date: 20140522 |