CN102818372B - 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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- CN102818372B CN102818372B CN201210320498.0A CN201210320498A CN102818372B CN 102818372 B CN102818372 B CN 102818372B CN 201210320498 A CN201210320498 A CN 201210320498A CN 102818372 B CN102818372 B CN 102818372B
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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
Air source heat pump hot water product is because the more and more social recognitions of energy-conserving and environment-protective, and on market, air-source heat pump hot water mainly contains heated type, circulating heating type, static heated type now.Heating type heat pump hot water is because install simple, engineering water pipeline caliber is little, engineering cost is low, cold water does not enter 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 heating type heat pump hot water of promoting on market is now in the time of the lower northern area applications of environment temperature, and because environment temperature is when low, inflow temperature is low, heating capacity is also lower simultaneously, but leaving water temperature still will remain on 55 degree, and therefore discharge is very little, cause product condensation effect poor, the coefficient of performance is low, because condensation effect is bad, compressor operating, at the state of high exhaust, high pressure, easily damages compressor simultaneously.
Summary of the invention
The technical problem to be solved in the present invention is, an a kind of heating type heat pump hot water water outlet temperature regulating device that can discharge is normal in the time that the lower region of environment temperature is used, condensation effect is good is provided.Another technical problem that the present invention will solve is to provide utilizes this temperature regulating device to carry out the method for temperature control.
Technical scheme of the present invention is an a kind of heating type heat pump hot water water outlet temperature regulating device, comprise heat storage water tank and interior water level switch thereof, the water pump, water heating heat exchanger and the water intaking valve that are connected with described heat storage water tank by pipeline, described pipeline connects heat storage water tank, threeway ratio adjusting valve, water heating heat exchanger, water pump successively;
Described temperature regulating device also comprises a water outlet thermostatic control module being connected with described heat storage water tank, is connected with environment temperature probe in described water outlet thermostatic control module; The switching of described 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 described water heating heat exchanger to opening.
Wherein, between described water outlet thermostatic control module and described threeway ratio adjusting valve, be connected with leaving water temperature probe.
Further, described water outlet thermostatic control module be connected with water inlet end by a cold water temperature probe.
Wherein, on described temperature regulating device, be connected with temperature control adjusting valve.
The present invention also provides an a kind of heating type heat pump hot water water outlet temperature control method, the method is carried out sample detecting to the temperature of heat storage water tank, environment and water heating heat exchanger, according to environment temperature difference, set different leaving water temperature values, by manual setting or method for automatically programing, regulate the aperture of threeway ratio adjusting valve and regulate inflow by temperature control adjusting valve, making the leaving water temperature of described water heating heat exchanger reach setting value.
According to a heating type heat pump hot water water outlet temperature control method of the present invention, preferably, the Temperature Setting scope of described manual setting is 40-65 DEG C.
According to a heating type heat pump hot water water outlet temperature control method of the present invention, preferably, described method for automatically programing is divided into the above and environment temperature of environment temperature 5 degree below 5 degree.
According to a heating type heat pump hot water water outlet temperature control method of the present invention, further, described method for automatically programing is: control leaving water temperature by the program setting in advance, environment temperature 25 is spent when above, and design temperature is 45 degree; When environment temperature 5-25 spends, design temperature is 50 degree; Below environment temperature 5 degree time, design temperature is 55 degree.
Further, in the time that environment temperature is spent lower than 5, now threeway ratio adjusting valve (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] %, 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 is compared with prior art:
By heating type heat pump hot water and circulation heating heat pump hot water machine are followed the tracks of, are analyzed and study in low ambient temperature applicable cases, create an a kind of heating type heat pump hot water leaving water temperature control technology, inherit and on market, installed electronic constant-temperature water valve regulation discharge additional, reach effluent temperature constancy at 55 degree, well solved again heated type product enter the discharge of condenser when low in environment temperature little simultaneously, condensation effect is poor, thereby produces that product energy-saving effect is poor, fluctuation of service, the flimsy problem of compressor displacement.Realize by an a kind of heating type heat pump hot water leaving water temperature control technology, product energy safety, stable, operation efficiently, project installation is simple simultaneously, cost is low, supplying hot water temperature constant.
1, create environment temperature difference, water outlet temperature setting value is also different, and in the time that environment temperature is spent higher than 25, the hot water amount of customer demand is few, and hot water temperature is low, and the heating capacity of unit is large simultaneously, unit at part-time in holding state.Therefore according to client's actual demand situation, leaving water temperature is turned down to 45 degree, when leaving water temperature is low, the energy-efficient performance of product can improve 15% left and right, 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.In the time that environment temperature 5-25 spends, hot water demand measures normally, and the operating condition of unit is stable, and now design temperature is 50 degree, and heating capacity also can meet normal hot water demand, also reaches energy-conservation object; In the time that environment temperature is spent lower than 5, water is set 55 degree, and the demand that meets hot water is large, the high requirement of demand temperature of hot water.
2, because environment temperature has a great impact the heating capacity of a heating type heat pump hot water, inlet water temperature only has 5-10 degree in the winter time, now leaving water temperature also must reach 55 degree, the discharge of heating can be very little, and heating capacity, the efficiency that will play unit because of discharge introductory note of product decline to a great extent like this.Also can play condensation effect because of discharge introductory note poor simultaneously, cause the delivery temperature of compressor and pressure high, long-play can cause compressor damage.By installing threeway ratio adjusting valve additional at water heating heat exchanger exit, automatically regulate the aperture of threeway ratio adjusting valve according to environment temperature and inflow temperature, control is bypassed to the hot water amount of water inlet, high-temperature-hot-water and cold water mix, and reach the inflow temperature that improves system reheater condenser, and the Inlet and outlet water temperature difference in water heating heat exchanger diminishes like this, it is large 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, efficiently operation.
3, creating can identification amount according to the leaving water temperature of unit, environment temperature, inlet water temperature etc., makes a set of perfect water outlet temperature control logic, and rationally to water heating heat exchanger, the adjusting of threeway ratio is carried out in water outlet efficiently.
4, adopt cross valve commutation defrost mode to replace hot-gas bypass defrost mode on market, defrost is more reliable, thorough, and the defrost time is short.
5, adopt temperature control adjusting valve to replace electronics water valve, regulation scope is larger, has solved electronics water valve opening problem little and that Flow-rate adjustment is not come and has occurred, has also solved well the susceptible to plugging problem of valve body in service.
Brief description of the drawings
Fig. 1 is structural representation of the present invention.
In figure, 1-water level switch, 2-heat storage water tank, 3-temperature control adjusting valve, 4-water intaking valve, 5-water pump, 6-water heating 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.
Detailed description of the invention
Below in conjunction with accompanying drawing, specific embodiments of the invention are described in further detail.
As shown in Figure 1, a heating type heat pump hot water 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, water heating heat exchanger 6 and the water intaking valve 4 that are connected with described heat storage water tank by pipeline, pipeline connects heat storage water tank 2, threeway ratio adjusting valve 8, water heating heat exchanger 6, water pump 5 successively;
This temperature regulating device also comprises a water outlet thermostatic control module 7 being connected with described heat storage water tank, is connected with environment temperature probe 10 in described water outlet thermostatic control module 7; Described water outlet thermostatic control module 7 is controlled the switching of 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 described water heating heat exchanger 6 to opening.
Between water outlet thermostatic control module 7 and threeway ratio adjusting valve, between 8, be connected with leaving water temperature probe 9, for detection of leaving water temperature.Water outlet thermostatic control module 7 be connected with water inlet end by a cold water temperature probe, by cold water temperature 11 water temperatures that detect water inlet end of popping one's head in.
On whole temperature regulating device, be also connected with temperature control adjusting valve 3.
When the water level switch 1 in heat storage water tank 2 disconnects, unit directly-heated moisturizing operation, water outlet thermostatic control module 7 detects when environment temperature is spent higher than 5, output executive signal, controls temperature control adjusting valve 3 aperture maximums, time delay 90 seconds, water intaking valve 4 passes into cold water, cold water is by water heating heat exchanger 6 hot water preparings, and the B-C that water outlet thermostatic control module 7 is controlled threeway ratio adjusting valve 8 is in full-gear, and B-A is in full-shut position.The hot water storage of producing is in heat storage water tank 2.Move after 300 seconds, threeway ratio adjusting valve 8 detects coolant-temperature gage, regulate inflow by temperature control adjusting valve 3, the leaving water temperature that reaches water heating heat exchanger 6 reaches design temperature, design temperature is divided into manually and automatic two kinds, when when manual, leaving water temperature is carried out free setting on line control machine by client, and setting range is 40-65 degree.
When water level switch 1 closure in heat storage water tank 2, simultaneously water tank temperature is lower than set temperature-return difference, unit temperature-constant operation, and water pump 5 is opened, and the B-C of threeway ratio adjusting valve 8 is in full-gear, and B-A is in full-shut position.Water in heat storage water tank, by heating condenser 6 hot water preparings, carries out constant temperature to the hot water in storage tank.
An a kind of heating type heat pump hot water water outlet temperature control method of the present invention, that the temperature of heat storage water tank, environment and water heating heat exchanger is carried out to sample detecting, according to environment temperature difference, set different leaving water temperature values, by manual setting or method for automatically programing, regulate the aperture of threeway ratio adjusting valve and regulate inflow by temperature control adjusting valve, making the leaving water temperature of described water heating heat exchanger reach setting value.
Wherein, the Temperature Setting scope of described manual setting is 40-65 DEG C.
Above-mentioned method for automatically programing is divided into the above and environment temperature of environment temperature 5 degree below 5 degree.
Described method for automatically programing is: control leaving water temperature by the program setting in advance, environment temperature 25 is spent when above, and design temperature is 45 degree; When environment temperature 5-25 spends, design temperature is 50 degree; Below environment temperature 5 degree time, design temperature is 55 degree.
Further, in the time that environment temperature is spent lower than 5, now threeway ratio adjusting valve 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] %, 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 by following the tracks of, analyze and study in low ambient temperature applicable cases heating type heat pump hot water and circulation heating heat pump hot water machine, create an a kind of heating type heat pump hot water temperature regulating device and leaving water temperature control technology, well having solved heated type product, enter the discharge of condenser when low in environment temperature little, condensation effect is poor, thereby produces that product energy-saving effect is poor, fluctuation of service, the flimsy problem of compressor displacement.Realize by an a kind of heating type heat pump hot water leaving water temperature control technology, product energy safety, stable, operation efficiently, project installation is simple simultaneously, cost is low, supplying hot water temperature constant.
Claims (7)
1. a heating type heat pump hot water water outlet temperature regulating device once, comprise heat storage water tank (2) and interior water level switch (1) thereof, the water pump (5), water heating heat exchanger (6) and the water intaking valve (4) that are connected with described heat storage water tank by pipeline, is characterized in that: described pipeline connects heat storage water tank (2), threeway ratio adjusting valve (8), water heating heat exchanger (6), water pump (5) successively;
Described temperature regulating device also comprises a water outlet thermostatic control module (7) being connected with described heat storage water tank, is connected with environment temperature probe in described water outlet thermostatic control module (7); Described water outlet thermostatic control module (7) is controlled the switching of 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 described water heating heat exchanger (6) to opening; Described water outlet thermostatic control module (7) be connected with water inlet end by a cold water temperature probe;
Described temperature regulating device is manually to set or method for automatically programing, and described method for automatically programing is divided into the above and environment temperature of environment temperature 5 degree below 5 degree.
2. a heating type heat pump hot water water outlet temperature regulating device according to claim 1, is characterized in that: between described water outlet thermostatic control module (7) and described threeway ratio adjusting valve (8), be connected with leaving water temperature probe.
3. a heating type heat pump hot water water outlet temperature regulating device according to claim 1, is characterized in that: on described temperature regulating device, be connected with temperature control adjusting valve.
4. the temperature control method of device described in claim 1, it is characterized in that: the temperature to heat storage water tank (2), environment and water heating heat exchanger (6) is carried out sample detecting, according to environment temperature difference, set different leaving water temperature values, by manual setting or method for automatically programing, regulate the aperture of threeway ratio adjusting valve (8) and regulate inflow by temperature control adjusting valve (3), make the leaving water temperature of described water heating heat exchanger (6) reach setting value; Described method for automatically programing is divided into the above and environment temperature of environment temperature 5 degree below 5 degree.
5. a heating type heat pump hot water water outlet temperature control method according to claim 4, is characterized in that: the Temperature Setting scope of described manual setting is 40-65 DEG C.
6. a heating type heat pump hot water water outlet temperature control method according to claim 4, is characterized in that: described method for automatically programing is: control leaving water temperature by the program setting in advance, environment temperature 25 is spent when above, and design temperature is 45 degree; When environment temperature 5-25 spends, design temperature is 50 degree; Below environment temperature 5 degree time, design temperature is 55 degree.
7. a heating type heat pump hot water water outlet temperature control method according to claim 4, it is characterized in that: in the time that environment temperature is spent lower than 5, now threeway ratio adjusting valve (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] %, 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 |
Applications Claiming Priority (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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| Publication Number | Publication Date |
|---|---|
| CN102818372A CN102818372A (en) | 2012-12-12 |
| CN102818372B true 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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Families Citing this family (4)
| 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 |
| 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 |
| 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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| 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 |
| CN101696824A (en) * | 2009-10-29 | 2010-04-21 | 巫宗进 | Heat pump water heater |
| 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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2012
- 2012-08-31 CN CN201210320498.0A patent/CN102818372B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN101696824A (en) * | 2009-10-29 | 2010-04-21 | 巫宗进 | Heat pump water heater |
| 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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| CN102818372A (en) | 2012-12-12 |
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