CN201352000Y - Directly-heated air-source heat pump hot water unit for accurately controlling inflowing rate - Google Patents
Directly-heated air-source heat pump hot water unit for accurately controlling inflowing rate Download PDFInfo
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- CN201352000Y CN201352000Y CNU2009200513007U CN200920051300U CN201352000Y CN 201352000 Y CN201352000 Y CN 201352000Y CN U2009200513007 U CNU2009200513007 U CN U2009200513007U CN 200920051300 U CN200920051300 U CN 200920051300U CN 201352000 Y CN201352000 Y CN 201352000Y
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Abstract
The utility model relates to an air-source heat pump hot water unit, in particular to a directly-heated air-source heat pump hot water unit for accurately controlling inflowing rate which comprises a compressor, an air-liquid separator, a water-cooling heat interchanger, a throttling device and a wind/water cooling heat interchanger; the compressor, the air-liquid separator, the wind/water cooling heat interchanger, the throttling device and the water-cooling heat interchanger forms a heat-exchanging circulation by cooling working substances; the water-cooling heat interchanger is connected with a cold water inlet pipe and a hot water outlet pipe, a flow control valve is arranged on the cold water inlet pipe, a temperature sensor is arranged on the hot water outlet pipe, a control system can control the opening degree of the flow control valve according to the difference of the water outlet temperature and the setting temperature detected by the temperature sensor. The air-source heat pump hot water unit solves the problems that the heating time of the heat accumulating type air-source heat pump hot water unit is long and the water outlet temperature is not stable.
Description
Technical field
The utility model relates to a kind of heat-pump hot-water unit, especially designs a kind of directly-heated type heat-pump hot-water unit of accurate control flow of inlet water.
Background technology
Industry and commerce in the market with and the air source/source heat pump water heater unit of similar applications mostly be heat-accumulation type hot pump hot water machine group.As shown in Figure 1, be a kind of heat-accumulation type hot pump hot water machine group, comprise compressor 1 ', gas-liquid separator 2 ', solenoid operated four-way valve 3 ', water-cooled heat exchanger 4 ', attemperater 5 ', water circulating pump 6 ', throttling arrangement 7 ', wind/water-cooled heat exchanger 8 '; Described compressor 1 ', gas-liquid separator 2 ', solenoid operated four-way valve 3 ', water-cooled heat exchanger 4 ', throttling arrangement 7 ', wind/water-cooled heat exchanger 8 ' are formed a circulation by the refrigeration working medium heat exchange.Described water-cooled heat exchanger 4 ', attemperater 5 ', water circulating pump 6 ' are formed a circulation that utilizes the water heat exchange.By above-mentioned two circulations, airborne transfer of heat can be fed water, and store with attemperater, use for the user.When the accumulation of heat pattern, high temperature refrigerant also carries out heat exchange with the water of 20 ℃ (establishing inflow temperature is 20 ℃) at the beginning, but along with the acting of oneself, the water temperature that heat exchange takes place is more and more higher, descending appears in the heat exchanger effectiveness of refrigerant, when particularly water temperature was elevated to 50 ℃, refrigerant reached minimum more than 60 ℃ through temperature after the heat exchange, and the value of refrigerant heat release is obviously not enough.System is under the high condensation temperature operating mode for a long time like this, and the too high compressor that makes of compressor exhaust temperature faces more wasted work, the easier carbonization of lubricated heating oil, and unit efficiency, security and service life descend significantly.Heat accumulating type air source/source heat pump water heater is in order to guarantee water temperature stability, not only need the attemperater of stored hot water also to need to use the work attemperater that heats cold water for circulation, just in this case, also exist the temperature of cold water rises time long, unstable and the above technical problem of hot water water temperature.For solving the problems referred to above of heat-accumulation type hot pump hot water machine, occurred on the market now a kind of " Instant heating type air source/source heat pump water heater " also cry " directly-heated type air source/source heat pump water heater " it be to adopt the method for controlling flow of inlet water, thereby reach the effect of instant heating.When the directly-heated pattern, inflow temperature low (establishing inflow temperature is 20 ℃) and leaving water temperature height (be our needed hot water temperature, as 60 ℃ etc.).At this moment, after high temperature refrigerant is discharged from compressor, always carry out heat exchange with 20 ℃ water, the temperature of refrigerant is reduced to 40 ℃, and the heat release value of refrigerant is obvious.Compressor is worked under substantially invariable pressure and temperature, and the operating mode of compressor is stable, and about short 5 minutes, by a constant refrigerant turnover temperature, compressor promptly reaches a stable operating load.The low temperature running water directly absorbs the heat of high temperature refrigerant, and refrigerant can fully cool off, and system high pressure pressure reduces, and compressor overcomes the electric energy minimizing that system pressure consumes, and has prolonged the life-span of compressor, has improved the Energy Efficiency Ratio of unit.The method of control flow of inlet water generally has pressure to regulate method, electric current adjusting method etc. at present.The present invention adopts temperature to feed back the open degree of control valve, thereby reaches accurate control flow of inlet water, the purpose of regulating accurate leaving water temperature.
The utility model content
The purpose of this utility model provides a kind of directly-heated type heat-pump hot-water unit that can accurately control leaving water temperature, compressor operating steady load.
For achieving the above object, the utility model provides following technical scheme:
A kind of directly-heated type heat-pump hot-water unit of accurate control flow of inlet water comprises compressor, gas-liquid separator, water-cooled heat exchanger, throttling arrangement, wind/water-cooled heat exchanger; Described compressor, gas-liquid separator, wind/water-cooled heat exchanger, throttling arrangement, water-cooled heat exchanger are formed a circulation by the refrigeration working medium heat exchange; Described water-cooled heat exchanger is connected with cold water inlet and hot water outlet pipe, wherein, described cold water inlet is provided with a flow control valve, the hot water outlet pipe is provided with a temperature sensor, and the leaving water temperature that control system detects by temperature sensor and the difference of design temperature are regulated the opening degree of flow flow control valve.
The heat-pump hot-water unit that the utility model provides has solved long, leaving water temperature problem of unstable heat time heating time of heat-accumulation type hot pump hot water machine group.Its great advantage is: 1, effluent temperature constancy, and hot water is short heat time heating time, can realize presetting hot water output about 5 minutes; 2, effectively reduce refrigerant system condensing pressure, protection compressor, raising Teat pump boiler leaving water temperature and Energy Efficiency Ratio; 3, the leaving water temperature of unit is not subjected to the influence of inflow temperature, pressure and atmospheric temperature, and the leaving water temperature control accuracy reaches ± and 1 ℃.
Further technical scheme is:
Also comprise a regenerator, along the refrigeration working medium traffic direction, described regenerator is serially connected between water-cooled heat exchanger and the throttling arrangement, also is serially connected between gas-liquid separator and the wind/water-cooled heat exchanger simultaneously.
By the regenerator (heat exchanger) that increases, further heat exchange reduces the acting of compressor, plays energy-saving effect.
Description of drawings
Fig. 1 is the structure chart of existing heat-pump hot-water unit;
Fig. 2 is the structure chart of the directly-heated type heat-pump hot-water unit of a kind of accurate control flow of inlet water of first embodiment;
Fig. 3 is the structure chart of the directly-heated type heat-pump hot-water unit of a kind of accurate control flow of inlet water of second embodiment.
The utility model is described in further detail below in conjunction with drawings and Examples.
The specific embodiment
Embodiment one
As shown in Figure 2, a kind of air source/water source directly-heated type heat-pump hot-water unit comprises compressor 21, gas-liquid separator 22, water-cooled heat exchanger 23, throttling arrangement 24, wind/water-cooled heat exchanger 25; Described compressor 21, gas-liquid separator 22, water-cooled heat exchanger 23, throttling arrangement 24, wind/water-cooled heat exchanger 25 are formed a circulation by the refrigeration working medium heat exchange; Described water-cooled heat exchanger 23 is connected with cold water inlet W and hot water outlet pipe G, flow regulator 26 is equipped with at described air source/source heat pump water heater group cold water inlet place, the hot water outlet pipe is equipped with at the place temperature sensor (figure does not show), and control system (figure does not show) is controlled the open degree of flow control valve according to outlet pipe place temperature and the difference of setting leaving water temperature.It is better that temperature sensor is loaded on outlet pipe bottom temperature-sensitive effect.
When the heat-pump hot-water unit is started shooting, it is too high to guarantee that refrigerant system condensing pressure can not rise that flow control valve can be opened to maximum rating, when the refrigerant pressure level-off, control system can be controlled the open degree of flow control valve according to outlet pipe place temperature and the difference of setting leaving water temperature, finally reaches to set leaving water temperature and stablize hot water.
Embodiment two
As shown in Figure 3, the difference of present embodiment and embodiment one maximum is, increased by a regenerator 28 in the circulation forming by the refrigeration working medium heat exchange by described compressor 21, gas-liquid separator 22, water-cooled heat exchanger 23, throttling arrangement 24, wind/water-cooled heat exchanger 25, along the refrigeration working medium traffic direction, being serially connected between water-cooled heat exchanger 23 and the throttling arrangement 24 of described regenerator 28 also is serially connected between gas-liquid separator 22 and the wind/water-cooled heat exchanger 25 simultaneously.
Above embodiment can not be considered to the restriction to the utility model protection domain, and it can be expansion valve or capillary that the utility model also has some other distortion such as throttling arrangement.If if those skilled in the art is subjected to inspiration of the present utility model, the distortion that does not need creative work to make all should fall within the utility model protection domain.
Claims (3)
1, a kind of directly-heated type heat-pump hot-water unit of accurate control flow of inlet water comprises compressor, gas-liquid separator, water-cooled heat exchanger, throttling arrangement, wind/water-cooled heat exchanger; Described compressor, gas-liquid separator, wind/water-cooled heat exchanger, throttling arrangement, water-cooled heat exchanger are formed a circulation by the refrigeration working medium heat exchange; Described water-cooled heat exchanger is connected with cold water inlet and hot water outlet pipe, it is characterized in that, described cold water inlet is provided with a flow control valve, the hot water outlet pipe is provided with a temperature sensor, the open degree that the leaving water temperature that control system detects by temperature sensor and the difference of design temperature are regulated the flow flow control valve.
2, the directly-heated type heat-pump hot-water unit of accurate control flow of inlet water according to claim 1,
It is characterized in that:
Also comprise a regenerator, along the refrigeration working medium traffic direction, described regenerator is serially connected between water-cooled heat exchanger and the throttling arrangement, also is serially connected between gas-liquid separator and the wind/water-cooled heat exchanger simultaneously.
3, the directly-heated type heat-pump hot-water unit of accurate control flow of inlet water according to claim 1 and 2,
It is characterized in that:
Throttling arrangement is expansion valve or capillary.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2009200513007U CN201352000Y (en) | 2009-02-17 | 2009-02-17 | Directly-heated air-source heat pump hot water unit for accurately controlling inflowing rate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2009200513007U CN201352000Y (en) | 2009-02-17 | 2009-02-17 | Directly-heated air-source heat pump hot water unit for accurately controlling inflowing rate |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201352000Y true CN201352000Y (en) | 2009-11-25 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2009200513007U Expired - Fee Related CN201352000Y (en) | 2009-02-17 | 2009-02-17 | Directly-heated air-source heat pump hot water unit for accurately controlling inflowing rate |
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| CN (1) | CN201352000Y (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104236034A (en) * | 2013-06-06 | 2014-12-24 | 洪丞禧 | Device for generating hot water through heat exchange |
| CN108088073A (en) * | 2016-11-23 | 2018-05-29 | 广东芬尼克兹节能设备有限公司 | Heat pump water-heating machine water circuit system and its control method |
| CN108895662A (en) * | 2018-06-12 | 2018-11-27 | 合肥美的暖通设备有限公司 | Hot water machine and its control method, control device, readable storage medium storing program for executing |
| CN112212502A (en) * | 2020-10-12 | 2021-01-12 | 青岛海信日立空调系统有限公司 | Directly-heated heat pump hot water system |
| CN112303868A (en) * | 2020-11-06 | 2021-02-02 | 李峰 | Heat recycling system and method for air conditioner outdoor unit |
| CN113983656A (en) * | 2021-11-02 | 2022-01-28 | 珠海格力电器股份有限公司 | Control method suitable for integrated kitchen air conditioner and integrated kitchen air conditioner |
-
2009
- 2009-02-17 CN CNU2009200513007U patent/CN201352000Y/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104236034A (en) * | 2013-06-06 | 2014-12-24 | 洪丞禧 | Device for generating hot water through heat exchange |
| CN108088073A (en) * | 2016-11-23 | 2018-05-29 | 广东芬尼克兹节能设备有限公司 | Heat pump water-heating machine water circuit system and its control method |
| CN108895662A (en) * | 2018-06-12 | 2018-11-27 | 合肥美的暖通设备有限公司 | Hot water machine and its control method, control device, readable storage medium storing program for executing |
| CN108895662B (en) * | 2018-06-12 | 2021-02-09 | 合肥美的暖通设备有限公司 | Water heater, control method and device thereof and readable storage medium |
| CN112212502A (en) * | 2020-10-12 | 2021-01-12 | 青岛海信日立空调系统有限公司 | Directly-heated heat pump hot water system |
| CN112303868A (en) * | 2020-11-06 | 2021-02-02 | 李峰 | Heat recycling system and method for air conditioner outdoor unit |
| CN113983656A (en) * | 2021-11-02 | 2022-01-28 | 珠海格力电器股份有限公司 | Control method suitable for integrated kitchen air conditioner and integrated kitchen air conditioner |
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| Date | Code | Title | Description |
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| 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: 20091125 Termination date: 20140217 |