CN102818372A - Temperature control device and temperature control method for yielding water of single-heat type heat pump water heater - Google Patents
Temperature control device and temperature control method for yielding water of single-heat type heat pump water heater Download PDFInfo
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- CN102818372A CN102818372A CN2012103204980A CN201210320498A CN102818372A CN 102818372 A CN102818372 A CN 102818372A CN 2012103204980 A CN2012103204980 A CN 2012103204980A CN 201210320498 A CN201210320498 A CN 201210320498A CN 102818372 A CN102818372 A CN 102818372A
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Abstract
The invention discloses a temperature control device for yielding water of a single-heat type heat pump water heater. A pipeline is connected with a heat storage water tank, a tee-joint proportioning valve, a heating water heat exchanger, a water pump and a yielding water constant temperature control module connected with the heat storage water tank, wherein the yielding water constant temperature control module is connected with an ambient temperature probe, and controls the switching on and off of the tee-joint proportioning valve; and an opening in the A-B direction of the tee-joint proportioning valve is communicated with a water inlet end, and an opening in the B-C direction is communicated with the heating water heat exchanger. In addition, the invention also discloses a temperature control method, the temperature of the heat storage water tank, the ambient and the heating water heat exchanger are subjected to sampling detection, and according to different ambient temperatures, different yielding water temperature values can be set, the switching on-off degree of the tee-joint proportioning valve is adjusted, the water feeding amount is adjusted by the temperature control regulating valve, so that the yielding water temperature of the heating water heat exchanger can reach the set value. The temperature control device can run with safety, stability and high efficiency, and meanwhile, the engineering installation is simple, the cost is low, and the supplied hot water is constant.
Description
Technical field
The present invention relates to a kind of heat-pump water heater, be specifically related to a kind of heat pump water-heating machine temperature regulating device and temperature control method.
Background technology
The air source heat pump hot water product is because the more and more social recognitions of energy-conserving and environment-protective, and air-source heat pump hot water mainly contains heated type, circulation heated type, static heated type on the market now.Heated type heat pump water-heating machine is because install simple, engineering water lines caliber is little, engineering cost is low, cold water does not advance heat storage water tank and hot water is stable etc. plurality of advantages, market large-scale popularization on the south the Changjiang river.But a heated type heat pump water-heating machine of promoting on the market now is when the lower northern area applications of environment temperature, because environment temperature is when low; Inflow temperature is low, and heating capacity is also lower simultaneously, but leaving water temperature still will remain on 55 degree; Therefore discharge is very little, causes the product condensation effect poor, and the coefficient of performance is low; Because condensation effect is bad, compressor operating damages compressor easily at the state of high exhaust, high pressure simultaneously.
Summary of the invention
The technical problem that the present invention will solve is, an a kind of heated type heat pump water-heating machine water outlet temperature regulating device that can discharge is normal, condensation effect is good when use in the lower zone of environment temperature is provided.Another technical problem that the present invention will solve provides utilizes this temperature regulating device to carry out the method for temperature control.
Technical scheme of the present invention is an a kind of heated type heat pump water-heating machine water outlet temperature regulating device; Comprise heat storage water tank and interior water level switch thereof; The water pump that is connected with said heat storage water tank through pipeline, heat water-to-water heat exchanger and water intaking valve, said pipeline connects heat storage water tank, threeway ratio adjusting valve successively, heats water-to-water heat exchanger, water pump;
Said temperature regulating device also comprises the water outlet thermostatic control module that is connected with said heat storage water tank, is connected with the environment temperature probe on the said water outlet thermostatic control module; The switching of said water outlet thermostatic control module controls threeway ratio adjusting valve; The A-B of threeway ratio adjusting valve is communicated with water inlet end to opening, and the B-C of threeway ratio adjusting valve is communicated with the said water-to-water heat exchanger that heats to opening.
Wherein, be connected with the leaving water temperature probe between said water outlet thermostatic control module and said threeway ratio adjusting valve.
Further, said water outlet thermostatic control module with link to each other with water inlet end through cold water temperature probe.
Wherein, be connected with temperature control adjusting valve on the said temperature regulating device.
The present invention also provides an a kind of heated type heat pump water-heating machine water outlet temperature control method; This method is carried out sample detecting to heat storage water tank, environment and the temperature that heats water-to-water heat exchanger; Different according to environment temperature, set different leaving water temperature values, through manual setting or method for automatically programing; Regulate the aperture of threeway ratio adjusting valve and regulate inflow, make the said leaving water temperature that heats water-to-water heat exchanger reach setting value through temperature control adjusting valve.
According to a heated type heat pump water-heating machine water outlet temperature control method of the present invention, preferably, the temperature setting range of said manual setting is 40-65 ℃.
According to a heated type heat pump water-heating machine water outlet temperature control method of the present invention, preferably, said method for automatically programing be divided into environment temperature 5 degree above with environment temperature below 5 degree.
According to a heated type heat pump water-heating machine water outlet temperature control method of the present invention, further, said method for automatically programing is: the program by configuring is in advance controlled leaving water temperature, and when environment temperature 25 degree were above, design temperature was 45 degree; When environment temperature 5-25 spent, design temperature was 50 degree; When environment temperature 5 degree were following, design temperature was 55 degree.
Further, when environment temperature is lower than 5 when spending, threeway ratio adjusting valve this moment (8) is controlled the aperture of B-C and B-A according to environment temperature and cold water temperature, and the aperture of B-A is [(10-T
Ring)-(T
Cold water-10)/T
Cold water] %, then the aperture of B-C is 1-[(10-T
Ring)-(T
Cold water-10)/T
Cold water] %;
T
RingRefer to environment temperature, T
Cold waterRefer to inflow temperature.
The present invention's beneficial effect compared with prior art is:
Through heated type heat pump water-heating machine and circulation heating heat pump hot water machine are followed the tracks of, are analyzed and study in the low ambient temperature applicable cases; Create an a kind of heated type heat pump water-heating machine leaving water temperature control technology; Inherited and installed electronic constant-temperature water valve regulation discharge on the market additional; Reach effluent temperature constancy at 55 degree; It is little well to have solved simultaneously heated type product gets into condenser when environment temperature is low discharge again, and condensation effect is poor, thereby produces that the product energy-saving effect is poor, fluctuation of service, the flimsy problem of compressor displacement.Realize through an a kind of heated type heat pump water-heating machine leaving water temperature control technology, product ability safety, stable, operation efficiently, project installation is simple simultaneously, cost is low, the heat supply coolant-temperature gage is constant.
1, create the environment temperature difference, the leaving water temperature setting value is also different, and when environment temperature is higher than 25 when spending, the hot water amount of customer demand is few, and the hot water temperature is low, and the heating capacity of unit is big simultaneously, and unit is in holding state at part-time.Therefore according to client's actual demand situation, leaving water temperature is turned down 45 degree, when leaving water temperature hangs down; The energy-efficient performance of product can improve about 15%; Compressor exhaust temperature and high pressure all can reduce simultaneously, and the merit of compressor consumption also can decrease, and compressor operating is more reliable, stable.When environment temperature 5-25 spent, the hot water demand measured normally, and the operating condition of unit is stable, and this moment, design temperature was 50 degree, and heating capacity also can satisfy normal hot water demand, also reaches purpose of energy saving; Be lower than 5 when spending in environment temperature, water is set 55 degree, and the demand that satisfies hot water is big, the high requirement of demand temperature of hot water.
2, because environment temperature has very big influence to the heating capacity of a heated type heat pump water-heating machine; The cold water inflow temperature has only the 5-10 degree in the winter time; This moment, leaving water temperature also must reach 55 degree; The discharge of heating can be very little, and product will decline to a great extent because of heating capacity, the efficiency that the discharge introductory note plays unit like this.It is poor also can to play condensation effect because of the discharge introductory note simultaneously, causes the delivery temperature of compressor and pressure high, and long-play can cause compressor damage.Through installing the threeway ratio adjusting valve additional heating water-to-water heat exchanger outlet,, control the hot water amount who is bypassed to water inlet according to the aperture that environment temperature and inflow temperature are regulated the threeway ratio adjusting valve automatically; High-temperature-hot-water and cold water mix, and reach the inflow temperature that improves the system reheater condenser, diminish in the Inlet and outlet water temperature difference that heats in the water-to-water heat exchanger like this; It is big that flow of inlet water will become; Reach the effect of abundant condensation, improved the heating capacity of unit, unit again can be safely, stable, efficient operation.
3, creating leaving water temperature according to unit, environment temperature, cold water inflow temperature etc. can the identification amount, makes the perfect water outlet temperature control logic of a cover, rationally carries out the threeway ratio and regulates heating the water-to-water heat exchanger water outlet efficiently.
4, adopt cross valve switching-over defrost mode to replace hot-gas bypass defrost mode on the market, defrost is more reliable, thorough, and the defrost time is short.
5, adopt temperature control adjusting valve to replace the electronics water valve, the aperture adjustable range is bigger, and it is little and problem that Flow-rate adjustment is not come occurs to have solved electronics water valve opening, has also solved the susceptible to plugging problem of valve body in service well.
Description of drawings
Fig. 1 is a structural representation of the present invention.
Among the figure, the 1-water level switch, the 2-heat storage water tank, the 3-temperature control adjusting valve, the 4-water intaking valve, the 5-water pump, 6-heats water-to-water heat exchanger, 7-water outlet thermostatic control module, 8-threeway ratio adjusting valve, 9-leaving water temperature probe, 10-environment temperature probe, 11-cold water temperature probe.
The specific embodiment
Below in conjunction with accompanying drawing specific embodiment of the present invention is described in further detail.
As shown in Figure 1; A heated type heat pump water-heating machine water outlet temperature regulating device of the present invention comprises heat storage water tank 2 and interior water level switch 1 thereof; The water pump 5 that is connected with said heat storage water tank through pipeline, heat water-to-water heat exchanger 6 and water intaking valve 4, pipeline connects heat storage water tank 2, threeway ratio adjusting valve 8 successively, heats water-to-water heat exchanger 6, water pump 5;
This temperature regulating device also comprises the water outlet thermostatic control module 7 that is connected with said heat storage water tank, is connected with environment temperature probe 10 on the said water outlet thermostatic control module 7; The switching of said water outlet thermostatic control module 7 control threeway ratio adjusting valves 8; The A-B of threeway ratio adjusting valve 8 is communicated with water inlet end to opening, and the B-C of threeway ratio adjusting valve 8 is communicated with the said water-to-water heat exchanger 6 that heats to opening.
8 are connected with leaving water temperature probe 9 between water outlet thermostatic control module 7 and threeway ratio adjusting valve, are used to detect coolant-temperature gage.Water outlet thermostatic control module 7 with link to each other with water inlet end through cold water temperature probe, through cold water temperature pop one's head in 11 detect water inlet end water temperature.
Also be connected with temperature control adjusting valve 3 on the whole temperature regulating device.
An a kind of heated type heat pump water-heating machine water outlet temperature control method of the present invention; Be that heat storage water tank, environment and the temperature that heats water-to-water heat exchanger are carried out sample detecting; Different according to environment temperature, set different leaving water temperature values, through manual setting or method for automatically programing; Regulate the aperture of threeway ratio adjusting valve and regulate inflow, make the said leaving water temperature that heats water-to-water heat exchanger reach setting value through temperature control adjusting valve.
Wherein, the temperature setting range of said manual setting is 40-65 ℃.
Above-mentioned method for automatically programing be divided into environment temperature 5 degree above with environment temperature below 5 degree.
Said method for automatically programing is: the program by configuring is in advance controlled leaving water temperature, and when environment temperature 25 degree were above, design temperature was 45 degree; When environment temperature 5-25 spent, design temperature was 50 degree; When environment temperature 5 degree were following, design temperature was 55 degree.
Further, when environment temperature is lower than 5 when spending, threeway this moment ratio adjusting valve 8 is controlled the aperture of B-C and B-A according to environment temperature and cold water temperature, and the aperture of B-A is [(10-T
Ring)-(T
Cold water-10)/T
Cold water] %, then the aperture of B-C is 1-[(10-T
Ring)-(T
Cold water-10)/T
Cold water] %;
T
RingRefer to environment temperature, T
Cold waterRefer to inflow temperature.
The present invention is through following the tracks of, analyze and study in the low ambient temperature applicable cases heated type heat pump water-heating machine and circulation heating heat pump hot water machine; Create an a kind of heated type heat pump water-heating machine temperature regulating device and leaving water temperature control technology; The discharge that has well solved heated type product entering condenser when environment temperature is low is little; Condensation effect is poor, thereby produces that the product energy-saving effect is poor, fluctuation of service, the flimsy problem of compressor displacement.Realize through an a kind of heated type heat pump water-heating machine leaving water temperature control technology, product ability safety, stable, operation efficiently, project installation is simple simultaneously, cost is low, the heat supply coolant-temperature gage is constant.
Claims (9)
1. heated type heat pump water-heating machine water outlet temperature regulating device once; Comprise heat storage water tank (2) and interior water level switch (1) thereof; The water pump (5) that is connected with said heat storage water tank through pipeline, heat water-to-water heat exchanger (6) and water intaking valve (4), it is characterized in that: said pipeline connects heat storage water tank (2), threeway ratio adjusting valve (8) successively, heats water-to-water heat exchanger (6), water pump (5);
Said temperature regulating device also comprises the water outlet thermostatic control module (7) that is connected with said heat storage water tank, is connected with the environment temperature probe on the said water outlet thermostatic control module (7); The switching of said water outlet thermostatic control module (7) control threeway ratio adjusting valve (8); The A-B of threeway ratio adjusting valve (8) is communicated with water inlet end to opening, and the B-C of threeway ratio adjusting valve (8) is communicated with the said water-to-water heat exchanger (6) that heats to opening.
2. a heated type heat pump water-heating machine water outlet temperature regulating device according to claim 1 is characterized in that: be connected with the leaving water temperature probe between said water outlet thermostatic control module (7) and said threeway ratio adjusting valve (8).
3. a heated type heat pump water-heating machine water outlet temperature regulating device according to claim 1 and 2 is characterized in that: said water outlet thermostatic control module (7) with link to each other with water inlet end through cold water temperature probe.
4. a heated type heat pump water-heating machine water outlet temperature regulating device according to claim 1 is characterized in that: be connected with temperature control adjusting valve on the said temperature regulating device.
5. heated type heat pump water-heating machine water outlet temperature control method once; It is characterized in that: heat storage water tank (2), environment and the temperature that heats water-to-water heat exchanger (6) are carried out sample detecting; Different according to environment temperature, set different leaving water temperature values, through manual setting or method for automatically programing; Regulate the aperture of threeway ratio adjusting valve (8) and regulate inflow, make the said leaving water temperature that heats water-to-water heat exchanger (6) reach setting value through temperature control adjusting valve (3).
6. a heated type heat pump water-heating machine water outlet temperature control method according to claim 5, it is characterized in that: the temperature setting range of said manual setting is 40-65 ℃.
7. a heated type heat pump water-heating machine water outlet temperature control method according to claim 5 is characterized in that: said method for automatically programing be divided into environment temperature 5 degree above with environment temperature below 5 degree.
8. a heated type heat pump water-heating machine water outlet temperature control method according to claim 7, it is characterized in that: said method for automatically programing is: the program by configuring is in advance controlled leaving water temperature, and when environment temperature 25 degree were above, design temperature was 45 degree; When environment temperature 5-25 spent, design temperature was 50 degree; When environment temperature 5 degree were following, design temperature was 55 degree.
9. a heated type heat pump water-heating machine water outlet temperature control method according to claim 7; It is characterized in that: when environment temperature is lower than 5 when spending; Threeway ratio adjusting valve this moment (8) is according to the aperture of environment temperature and cold water temperature control B-C and B-A, and the aperture of B-A is [(10-T
Ring)-(T
Cold water-10)/T
Cold water] %, then the aperture of B-C is 1-[(10-T
Ring)-(T
Cold Water-10)/T
Cold water] %;
T
RingRefer to environment temperature, T
Cold waterRefer to inflow temperature.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210320498.0A CN102818372B (en) | 2012-08-31 | 2012-08-31 | Temperature control device and temperature control method for yielding water of single-heat type heat pump water heater |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210320498.0A CN102818372B (en) | 2012-08-31 | 2012-08-31 | Temperature control device and temperature control method for yielding water of single-heat type heat pump water heater |
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|---|---|
| CN102818372A true CN102818372A (en) | 2012-12-12 |
| CN102818372B CN102818372B (en) | 2014-10-22 |
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| CN201210320498.0A Active CN102818372B (en) | 2012-08-31 | 2012-08-31 | Temperature control device and temperature control method for yielding water of single-heat type heat pump water heater |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106196596A (en) * | 2016-08-23 | 2016-12-07 | 南京天加空调设备有限公司 | A kind of directly-heated type air-source heat pump hot water and control method thereof |
| CN104034047B (en) * | 2013-03-04 | 2017-02-08 | 广东美的暖通设备有限公司 | Heat pump water heater and control method thereof |
| CN107816782A (en) * | 2017-12-05 | 2018-03-20 | 徐州海里奥特环境科技有限公司 | A kind of heat pump and control device and control method based on temperature curve |
| CN108592402A (en) * | 2018-06-28 | 2018-09-28 | 珠海格力电器股份有限公司 | Direct-heating circulation type heat pump water heater with waterway anti-freezing system and anti-freezing method |
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| CN202188622U (en) * | 2011-07-26 | 2012-04-11 | 美的集团有限公司 | Adjustable constant-temperature constant-current water heater |
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Patent Citations (5)
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| US20050279291A1 (en) * | 2004-06-08 | 2005-12-22 | Donnelly Donald E | Apparatus and methods for controlling a water heater |
| CN2757023Y (en) * | 2004-12-14 | 2006-02-08 | 豪特容积热水器(成都)有限责任公司 | Water heater control system |
| CN201196747Y (en) * | 2008-05-23 | 2009-02-18 | 上海正克电器有限公司 | Thermostatic control device of electric water heater |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104034047B (en) * | 2013-03-04 | 2017-02-08 | 广东美的暖通设备有限公司 | Heat pump water heater and control method thereof |
| CN106196596A (en) * | 2016-08-23 | 2016-12-07 | 南京天加空调设备有限公司 | A kind of directly-heated type air-source heat pump hot water and control method thereof |
| CN106196596B (en) * | 2016-08-23 | 2019-07-23 | 南京天加空调设备有限公司 | A kind of control method of directly-heated type air-source heat pump hot water |
| CN107816782A (en) * | 2017-12-05 | 2018-03-20 | 徐州海里奥特环境科技有限公司 | A kind of heat pump and control device and control method based on temperature curve |
| CN108592402A (en) * | 2018-06-28 | 2018-09-28 | 珠海格力电器股份有限公司 | Direct-heating circulation type heat pump water heater with waterway anti-freezing system and anti-freezing method |
| CN108592402B (en) * | 2018-06-28 | 2023-10-31 | 珠海格力电器股份有限公司 | Direct-heating circulation type heat pump water heater with waterway antifreezing system and antifreezing method |
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| CN102818372B (en) | 2014-10-22 |
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