CN104633929A - Heat-pump water heater and controlling method thereof - Google Patents
Heat-pump water heater and controlling method thereof Download PDFInfo
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- CN104633929A CN104633929A CN201510067738.4A CN201510067738A CN104633929A CN 104633929 A CN104633929 A CN 104633929A CN 201510067738 A CN201510067738 A CN 201510067738A CN 104633929 A CN104633929 A CN 104633929A
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Abstract
The invention discloses a heat-pump water heater and a controlling method thereof. The heat-pump water heater comprises a water tank, a first heat exchanger, a second heat exchanger, a compressor, an evaporator, a first pressure adjusting device, a second pressure adjusting device and a control valve, wherein the first heat exchanger and the second heat exchanger are arranged on the water tank, the first heat exchanger and the second heat exchanger are arranged between the compressor and the evaporator in a connecting mode, the first heat exchanger is connected with a first outlet pipeline, the second heat exchanger is connected with a second outlet pipeline, the first outlet pipeline and the second outlet pipeline are communicated with the evaporator through a third outlet pipeline, the first pressure adjusting device is arranged on the first outlet pipeline, the second pressure adjusting device is disposed on the second outlet pipeline or the third outlet pipeline, and the control valve controls refrigerant to enter a refrigerant inlet end of the first heat exchanger and/or a refrigerant inlet end of the second heat exchanger. According to the heat-pump water heater and the controlling method thereof, circulation quantity of refrigerant in the heat-pump water heater can be always effectively guaranteed, and high heat exchange efficiency can be achieved.
Description
Technical field
The present invention relates to field of water heaters, particularly a kind of Teat pump boiler and control method thereof.
Background technology
At present in industry, most of Teat pump boiler can only heat the water in whole water tank.But aforesaid way is only applicable to the situation that user need use a large amount of hot water, when user uses a small amount of water or user number to change, still whole box water is heated, period of reservation of number can be caused long, waste energy, the problems such as adding users use cost, therefore can not meet the demand of the various water consumptions of user flexibly.
Chinese patent CN 201310075725.2 gives a kind of implementation for this reason.Concrete, above-mentioned patent gives a kind of heating system and has the Teat pump boiler of heating system.Described heating system mainly comprises: the first heating branch road, the second heating branch road.When water consumption is larger, the first heating branch road and the second heating branch road of described Teat pump boiler work simultaneously, heat the water in whole water tank.When water consumption is less, described Teat pump boiler can select half courage heating mode, only described first heating branch road work, and the second heating branch road does not work, thus heats part water in water tank.When reality uses, user according to the difference of water consumption and user number thereof, can switch under full courage heating mode and half courage heating mode.Under but Teat pump boiler switches to the refrigerant accumulated in the second heating branch road during half courage heating mode cannot be effectively used to half courage heating mode by full courage heating mode, thus the coolant quantity causing complete machine to can be used for circulating greatly reduces, and then reduce the heat exchange efficiency of whole Teat pump boiler.In addition in the ordinary course of things, described Teat pump boiler is when half courage mode of operation, and the refrigerant participating in circulation constantly can leak and enter in the second heating branch road, and result also in the coolant quantity participating in circulation and reduce, heat exchange efficiency reduces.
Summary of the invention
The object of this invention is to provide a kind of Teat pump boiler and control method thereof, effectively can ensure the internal circulating load of refrigerant in Teat pump boiler all the time, make it have higher heat exchange efficiency.
Above-mentioned purpose of the present invention can adopt following technical proposal to realize:
A kind of Teat pump boiler, described Teat pump boiler comprises: water tank, is arranged on the First Heat Exchanger on described water tank and the second heat exchanger; Compressor, evaporimeter, described First Heat Exchanger and described second heat exchanger are connected between described compressor and described evaporimeter, and described First Heat Exchanger can isolated operation; Described First Heat Exchanger connects the first output pipe, and described second heat exchanger connects the second output pipe, and described first output pipe is communicated with described evaporimeter by the 3rd output pipe with described second output pipe; First pressure-regulating device, is located on described first output pipe; Second pressure-regulating device, is located on described second output pipe or described 3rd output pipe; Control valve, controls the refrigerant input that refrigerant enters described First Heat Exchanger and/or described second heat exchanger.
Further, described Teat pump boiler also comprises the first checkout gear for obtaining the first pressure information in described second heat exchanger, for obtaining the second detection device of described evaporimeter refrigerant inlet end second pressure information.
Further, described first checkout gear and/or described second detection device are pressure sensor.
Further, described first checkout gear and/or described second detection device are temperature sensor.
Further, also comprise the temperature sensor be arranged on described water tank, indirectly to obtain the temperature of described second heat exchanger.
Further, described First Heat Exchanger is positioned on described second heat exchanger.
Further, described First Heat Exchanger, the second heat exchanger are connected between described compressor and described evaporimeter by mode in parallel.
Further, described second pressure-regulating device is located on described second output pipe.
Further, described control valve is positioned at the input of described second heat exchanger.
Further, described First Heat Exchanger, the second heat exchanger are connected between described compressor and evaporimeter by the mode of series connection.
Further, described second pressure-regulating device is located on described second output pipe or described 3rd output pipe.
Further, described second output pipe is also provided with check valve.
Further, described first pressure-regulating device is electric expansion valve, and described second pressure-regulating device is electric expansion valve or capillary or heating power expansion valve.
A control method for Teat pump boiler, comprising:
During described First Heat Exchanger isolated operation, described control valve controls refrigerant and only enters described First Heat Exchanger input;
During described second heat exchanger isolated operation, described control valve controls refrigerant and only enters described second heat exchanger input;
When described First Heat Exchanger and described second heat exchanger run simultaneously, described control valve controls refrigerant and enters described First Heat Exchanger and described second heat exchanger simultaneously.
Further, during described First Heat Exchanger isolated operation, the refrigerant that described second pressure-regulating device controls in described second heat exchanger can flow out from described second heat exchanger;
Regulate the rotation speed of fan of described first pressure-regulating device and/or evaporimeter, make described second pressure-regulating device inlet port pressure be greater than described second pressure-regulating device outlet pressures.
Further, regulate the rotation speed of fan of described first pressure-regulating device and/or evaporimeter, make the refrigerant pressure of described evaporimeter refrigerant input be less than refrigerant pressure in described second heat exchanger.
Further, described Teat pump boiler also comprises the first checkout gear for obtaining the first pressure information in described second heat exchanger, for obtaining the second detection device of described evaporimeter refrigerant inlet end second pressure information, according to described first pressure information and the second pressure information, regulate the rotation speed of fan of described first pressure-regulating device and/or evaporimeter, make described first pressure information be greater than described second pressure information.
Further, described method also comprises: if when described first pressure information is less than or equal to described second pressure information, then regulate described first pressure-regulating device to reduce flow and/or reduce the rotation speed of fan of described evaporimeter.
Further, regulate the rotation speed of fan of described first pressure-regulating device and/or evaporimeter, make described second pressure-regulating device input pressure be greater than the second pressure-regulating device output end pressure and preset value sum.
The features and advantages of the invention are: provide a kind of Teat pump boiler and control method thereof, relative to existing, there is half courage heating, full courage adds the Teat pump boiler of hot-swapping function, when needs are in half courage heating mode work, the controller being positioned at described second heat exchanger refrigerant input is in closed condition, described First Heat Exchanger isolated operation, by regulating the rotation speed of fan of described first pressure-regulating device and/or evaporimeter, described second pressure-regulating device inlet port pressure is made to be greater than described second pressure-regulating device outlet pressures, and then the refrigerant controlled in described second heat exchanger can flow out from described second heat exchanger, enter whole heat pump heating system.That is can enable to lodge in the refrigerant that described second heat exchanger or leakage enter in the second heat exchanger to be used effectively, participate in the thermal cycle of half courage heating mode, thus effectively can ensure the internal circulating load of refrigerant in Teat pump boiler all the time, make it have higher heat exchange efficiency.
Accompanying drawing explanation
Fig. 1 is the system diagram of Teat pump boiler of the present invention;
Fig. 2 is Teat pump boiler first parallel way system diagram of the present invention;
Fig. 3 is Teat pump boiler second parallel way system diagram of the present invention;
Fig. 4 is Teat pump boiler of the present invention 3rd parallel way system diagram;
Fig. 5 is Teat pump boiler of the present invention 4th parallel way system diagram;
Fig. 6 is Teat pump boiler of the present invention 5th parallel way system diagram;
Fig. 7 is Teat pump boiler of the present invention 6th parallel way system diagram;
Fig. 8 is Teat pump boiler first series system system diagram of the present invention;
Fig. 9 is Teat pump boiler second series system figure of the present invention;
Figure 10 is Teat pump boiler of the present invention 3rd series system system diagram;
Figure 11 is Teat pump boiler of the present invention 4th series system system diagram.
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, technical scheme of the present invention is elaborated, these embodiments should be understood only be not used in for illustration of the present invention and limit the scope of the invention, after having read the present invention, the amendment of those skilled in the art to the various equivalent form of value of the present invention has all fallen in the application's claims limited range.
The invention provides a kind of Teat pump boiler and control method thereof, effectively can ensure the internal circulating load of refrigerant in Teat pump boiler all the time, make it have higher heat exchange efficiency.
Referring to Fig. 1, is the system diagram of Teat pump boiler of the present invention.Teat pump boiler of the present invention comprises: water tank 1, is arranged on the First Heat Exchanger 11 on described water tank 1 and the second heat exchanger 12; Compressor 2, evaporimeter 3, described First Heat Exchanger 11 and described second heat exchanger 12 are connected between described compressor 2 and described evaporimeter 3, and described First Heat Exchanger 11 can isolated operation; Described First Heat Exchanger 11 connects the first output pipe 13, and described second heat exchanger 12 connects the second output pipe 14, and described first output pipe 13 is communicated with described evaporimeter 3 by the 3rd output pipe 15 with described second output pipe 14; First pressure-regulating device 4, is located on described first output pipe 13; Second pressure-regulating device 5, is located on described second output pipe 14; Control valve 6, controls the refrigerant input that refrigerant enters described First Heat Exchanger 11 and/or described second heat exchanger 12.
Described First Heat Exchanger 11, second heat exchanger 12 can be positioned at the inside of described water tank 1, and such as described First Heat Exchanger 11, second heat exchanger 12 is arranged on the inside of described water tank 1 from top to bottom; Described First Heat Exchanger 11, second heat exchanger 12 also can be arranged on the outer wall of described water tank 1.
Described first pressure-regulating device 4 can be electric expansion valve or capillary or heating power expansion valve, and described second pressure-regulating device 5 can be electric expansion valve or capillary or heating power expansion valve.Described control valve 6 can be magnetic valve.
Described Teat pump boiler also comprises the first checkout gear 120 for obtaining the first pressure information in described second heat exchanger 12, for obtaining the second detection device 30 of described evaporimeter 3 refrigerant inlet end second pressure information.Described first checkout gear 120 and/or described second detection device 30 are for pressure sensor or can be temperature sensor.Described pressure information also can be temperature value for force value.
Such as when described first checkout gear 120, described second detection device 30 are pressure sensor, and when being half courage heating mode, according to described first pressure information and the second pressure information, the rotation speed of fan of adjustable described first pressure-regulating device 4 and/or evaporimeter 3, makes described first pressure information be greater than described second pressure information.Concrete, if when described first pressure information is less than or equal to described second pressure information, described first pressure-regulating device 4 is then regulated to reduce flow and/or reduce the rotation speed of fan of described evaporimeter 3, the refrigerant pressure of described evaporimeter 3 refrigerant input is made to be less than refrigerant pressure in described second heat exchanger 12, and then the refrigerant controlled in described second heat exchanger 12 can flow out from described second heat exchanger 12, enter whole heat pump heating system.
Such as when described first checkout gear 120, described second detection device 30 are temperature sensor, described first checkout gear 120 is arranged on described water tank 1, indirectly to obtain the temperature of described second heat exchanger 12.Described second detection device 30 is arranged on evaporimeter 3 position, and for obtaining the temperature in described evaporimeter 3, because temperature and pressure have proportional relation one to one, therefore described temperature directly can reflect the size of pressure.Under half courage heating mode, according to the temperature that described first checkout gear 120, described second detection device 30 obtain, the rotation speed of fan of adjustable described first pressure-regulating device 4 and/or evaporimeter 3, makes described first pressure information be greater than described second pressure information.Concrete, if when described first pressure information is less than or equal to described second pressure information, described first pressure-regulating device 4 is then regulated to reduce flow and/or reduce the rotation speed of fan of described evaporimeter 3, the refrigerant pressure of described evaporimeter 3 refrigerant input is made to be less than refrigerant pressure in described second heat exchanger 12, and then the refrigerant controlled in described second heat exchanger 12 can flow out from described second heat exchanger 12, enter whole heat pump heating system.
When described First Heat Exchanger 11, second heat exchanger 12 is arranged on the outer wall of described water tank 1, described Teat pump boiler also comprises the temperature sensor be arranged on described water tank 1, described temperature sensor for obtaining the temperature of described water tank 1, indirectly to obtain the temperature of described second heat exchanger 12.Because temperature and pressure exist corresponding relation, therefore, it is possible to reflect the pressure information at the second heat exchanger 12 place.
During actual use, if described Teat pump boiler needs in half courage heating mode work, the isolated operation of described First Heat Exchanger 11 can be selected, the controller 6 being now positioned at described second heat exchanger 12 refrigerant input B is in closed condition, and described control valve 6 controls refrigerant and only enters described First Heat Exchanger 11 input A; Regulate the rotation speed of fan of described first pressure-regulating device 4 and/or evaporimeter 3, described second pressure-regulating device 5 inlet port pressure is made to be greater than described second pressure-regulating device 5 outlet pressures, and then the refrigerant controlled in described second heat exchanger 12 can flow out from described second heat exchanger 12, enter whole heat pump heating system.That is can enable to lodge in described second heat exchanger 12 or leak the refrigerant entered in the second heat exchanger 12 to be used effectively, participate in the thermal cycle of half courage heating mode, thus effectively can ensure the internal circulating load of refrigerant in Teat pump boiler all the time, make it have higher heat exchange efficiency.
Described Teat pump boiler needs when half courage heating mode work, also can select to allow described second heat exchanger 12 isolated operation, the controller 6 being positioned at described second heat exchanger 12 refrigerant input B is in open mode, and described first pressure-regulating device 4 can be electric expansion valve, is in closed condition.Described control valve 6 controls refrigerant and only enters described second heat exchanger 12 input B; Regulate the rotation speed of fan of described evaporimeter 3, described first pressure-regulating device 4 inlet port pressure is made to be greater than described first pressure-regulating device 4 outlet pressures, and then the refrigerant controlled in described First Heat Exchanger 11 can flow out from described First Heat Exchanger 11, enter whole heat pump heating system.That is can enable to lodge in described First Heat Exchanger 11 or leak the refrigerant entered in First Heat Exchanger 11 to be used effectively, participate in the thermal cycle of half courage heating mode, thus effectively can ensure the internal circulating load of refrigerant in Teat pump boiler all the time, make it have higher heat exchange efficiency.
Described Teat pump boiler needs when full courage heating mode work, and described First Heat Exchanger 11 and described second heat exchanger 12 run simultaneously, and described control valve 6 controls refrigerant and enters described First Heat Exchanger 11 and described second heat exchanger 12 simultaneously.
As shown in Figure 1, described second output pipe 14 is also provided with check valve 7.Described check valve 7 can prevent the refrigerant flowed out in the second heat exchanger 12 from being flowed back in the second heat exchanger 12 by described second output pipe 14.
Referring to Fig. 2, is Teat pump boiler first parallel way system diagram of the present invention.Described Teat pump boiler comprises: water tank 1, is arranged on the First Heat Exchanger 11 on described water tank 1 and the second heat exchanger 12; Compressor 2, evaporimeter 3, described First Heat Exchanger 11, second heat exchanger 12 is connected between described compressor 2 and described evaporimeter 3 by mode in parallel, and described First Heat Exchanger 11 can isolated operation; Described First Heat Exchanger 11 connects the first output pipe 13, and described second heat exchanger 12 connects the second output pipe 14, and described first output pipe 13 is communicated with described evaporimeter 3 by the 3rd output pipe 15 with described second output pipe 14; First pressure-regulating device 4, is located on described first output pipe 13; Second pressure-regulating device 5, is located on described second output pipe 14; Control valve 6, lays respectively at the input A of described the First Heat Exchanger 11 and input B of described second heat exchanger 12, to control the refrigerant input that refrigerant enters described First Heat Exchanger 11 and described second heat exchanger 12.
Described first pressure-regulating device 4 is electric expansion valve, and described second pressure-regulating device 5 is electric expansion valve.
Described Teat pump boiler needs when half courage heating mode work, can select to allow the isolated operation of described First Heat Exchanger 11, the controller 6 being now positioned at described First Heat Exchanger 11 refrigerant input A is in open mode, the controller 6 being positioned at described second heat exchanger 12 refrigerant input B is in closed condition, and described control valve 6 controls refrigerant and only enters described First Heat Exchanger 11 input A; Regulate the rotation speed of fan of described first pressure-regulating device 4 and/or evaporimeter 3, described second pressure-regulating device 5 inlet port pressure is made to be greater than described second pressure-regulating device 5 outlet pressures, and then the refrigerant controlled in described second heat exchanger 12 can flow out from described second heat exchanger 12, enter whole heat pump heating system.That is can enable to lodge in described second heat exchanger 12 or leak the refrigerant entered in the second heat exchanger 12 to be used effectively, participate in the thermal cycle of half courage heating mode, thus effectively can ensure the internal circulating load of refrigerant in Teat pump boiler all the time, make it have higher heat exchange efficiency.
Described Teat pump boiler needs when half courage heating mode work, also can select to allow described second heat exchanger 12 isolated operation, the controller 6 being now positioned at described second heat exchanger 12 refrigerant input B is in open mode, the controller 6 being positioned at described First Heat Exchanger 11 refrigerant input A is in closed condition, and described control valve 6 controls refrigerant and only enters described second heat exchanger 12 input B; Regulate the rotation speed of fan of described second pressure-regulating device 5 and/or evaporimeter 3, described first pressure-regulating device 4 inlet port pressure is made to be greater than described first pressure-regulating device 4 outlet pressures, and then the refrigerant controlled in described First Heat Exchanger 11 can flow out from described First Heat Exchanger 11, enter whole heat pump heating system.That is can enable to lodge in described First Heat Exchanger 11 or leak the refrigerant entered in First Heat Exchanger 11 to be used effectively, participate in the thermal cycle of half courage heating mode, thus effectively can ensure the internal circulating load of refrigerant in Teat pump boiler all the time, make it have higher heat exchange efficiency.
During actual use, if the outlet pipe of described water tank 1 is located thereon portion, described First Heat Exchanger 11 is positioned on described second heat exchanger 12, near the position of outlet pipe, when water consumption is less, select the isolated operation of described primary heater 11, described Teat pump boiler works under half courage heating mode, and the water after heating can directly flow out from first courage, is conducive to shortening the heat time, economize energy, adding users use cost.
Refer to Fig. 3, be Teat pump boiler second parallel way system diagram of the present invention, itself and described first parallel way difference are: described second pressure-regulating device 5 is capillary; In addition described second output pipe 14 is also provided with check valve 7.Described check valve 7 can prevent the refrigerant flowed out in the second heat exchanger 12 from being flowed back in the second heat exchanger 12 by described second output pipe 14.
Described Teat pump boiler needs when half courage heating mode work, the isolated operation of described First Heat Exchanger 11 can be selected, the controller 6 being positioned at described First Heat Exchanger 11 refrigerant input A is in open mode, the controller 6 being positioned at described second heat exchanger 12 refrigerant input B is in closed condition, and described control valve 6 controls refrigerant and only enters described First Heat Exchanger 11 input A; Regulate the rotation speed of fan of described first pressure-regulating device 4 and/or evaporimeter 3, described second pressure-regulating device 5 inlet port pressure is made to be greater than described second pressure-regulating device 5 outlet pressures, and then the refrigerant controlled in described second heat exchanger 12 can flow out from described second heat exchanger 12, enter whole heat pump heating system.That is can enable to lodge in described second heat exchanger 12 or leak the refrigerant entered in the second heat exchanger 12 to be used effectively, participate in the thermal cycle of half courage heating mode, thus effectively can ensure the internal circulating load of refrigerant in Teat pump boiler all the time, make it have higher heat exchange efficiency.
Described Teat pump boiler needs when half courage heating mode work, also can select to allow described second heat exchanger 12 isolated operation, the controller 6 being positioned at described second heat exchanger 12 refrigerant input B is in open mode, the controller 6 being positioned at described First Heat Exchanger 11 refrigerant input A is in closed condition, and described control valve 6 controls refrigerant and only enters described second heat exchanger 12 input B; Regulate the rotation speed of fan of described evaporimeter 3, described first pressure-regulating device 4 inlet port pressure is made to be greater than described first pressure-regulating device 4 outlet pressures, and then the refrigerant controlled in described First Heat Exchanger 11 can flow out from described First Heat Exchanger 11, enter whole heat pump heating system.That is can enable to lodge in described First Heat Exchanger 11 or leak the refrigerant entered in First Heat Exchanger 11 to be used effectively, participate in the thermal cycle of half courage heating mode, thus effectively can ensure the internal circulating load of refrigerant in Teat pump boiler all the time, make it have higher heat exchange efficiency.
Refer to Fig. 4, be Teat pump boiler of the present invention 3rd parallel way system diagram, itself and described first parallel way difference are: described first pressure-regulating device 4 is capillary; In addition described first output pipe 13 is also provided with check valve 7.Described check valve 7 can prevent the refrigerant flowed out in First Heat Exchanger 11 from being flowed back in First Heat Exchanger 11 by described first output pipe 11.
Described Teat pump boiler needs when half courage heating mode work, the isolated operation of described First Heat Exchanger 11 can be selected, the controller 6 being positioned at described First Heat Exchanger 11 refrigerant input A is in open mode, the controller 6 being positioned at described second heat exchanger 12 refrigerant input B is in closed condition, and described control valve 6 controls refrigerant and only enters described First Heat Exchanger 11 input A; Regulate the rotation speed of fan of described evaporimeter 3, described second pressure-regulating device 5 inlet port pressure is made to be greater than described second pressure-regulating device 5 outlet pressures, and then the refrigerant controlled in described second heat exchanger 12 can flow out from described second heat exchanger 12, enter whole heat pump heating system.That is can enable to lodge in described second heat exchanger 12 or leak the refrigerant entered in the second heat exchanger 12 to be used effectively, participate in the thermal cycle of half courage heating mode, thus effectively can ensure the internal circulating load of refrigerant in Teat pump boiler all the time, make it have higher heat exchange efficiency.
Described Teat pump boiler needs when half courage heating mode work, also can select to allow described second heat exchanger 12 isolated operation, the controller 6 being positioned at described second heat exchanger 12 refrigerant input B is in open mode, the controller 6 being positioned at described First Heat Exchanger 11 refrigerant input A is in closed condition, and described control valve 6 controls refrigerant and only enters described second heat exchanger 12 input B; By regulating the rotation speed of fan of described second pressure-regulating device 5 and/or evaporimeter 3, described first pressure-regulating device 4 inlet port pressure is made to be greater than described first pressure-regulating device 4 outlet pressures, and then the refrigerant controlled in described First Heat Exchanger 11 can flow out from described First Heat Exchanger 11, enter whole heat pump heating system.That is can enable to lodge in described First Heat Exchanger 11 or leak the refrigerant entered in First Heat Exchanger 11 to be used effectively, participate in the thermal cycle of half courage heating mode, thus effectively can ensure the internal circulating load of refrigerant in Teat pump boiler all the time, make it have higher heat exchange efficiency.
Refer to Fig. 5, be Teat pump boiler of the present invention 4th parallel way system diagram, itself and described 3rd parallel way difference are: described controller 6 number is one, are positioned at described First Heat Exchanger 11 refrigerant input A place.
Described Teat pump boiler needs when half courage heating mode work, and when selecting described First Heat Exchanger 11 isolated operation, the controller 6 being positioned at described First Heat Exchanger 11 refrigerant input A place can be opened, and close described second pressure-regulating device 5, thus control refrigerant only enters described First Heat Exchanger 11 input A.
Refer to Fig. 6, be Teat pump boiler of the present invention 5th parallel way system diagram, itself and described first parallel way difference are: described controller 6 number is one, are positioned at described second heat exchanger 12 refrigerant input B place.
Described Teat pump boiler needs when half courage heating mode work, and when selecting described second heat exchanger 11 isolated operation, the controller 6 being positioned at described second heat exchanger 12 refrigerant input B place can be opened, and close described first pressure-regulating device 4, thus control refrigerant only enters described second heat exchanger 12 input B.
Refer to Fig. 7, be Teat pump boiler of the present invention 6th parallel way system diagram, itself and described first parallel way difference are: described controller 6 number is one, are positioned at described First Heat Exchanger 11 refrigerant input A place.
Described Teat pump boiler needs when half courage heating mode work, and when selecting described First Heat Exchanger 11 isolated operation, the controller 6 being positioned at described First Heat Exchanger 11 refrigerant input A place can be opened, and close described second pressure-regulating device 5, thus control refrigerant only enters described First Heat Exchanger 11 input A.
Referring to Fig. 8, is Teat pump boiler first series system system diagram of the present invention.Described Teat pump boiler comprises: water tank 1, is arranged on the First Heat Exchanger 11 on described water tank 1 and the second heat exchanger 12; Compressor 2, evaporimeter 3, described First Heat Exchanger 11, second heat exchanger 12 is connected between described compressor 2 and described evaporimeter 3 by the mode of series connection, and described First Heat Exchanger 11 can isolated operation; Described First Heat Exchanger 11 connects the first output pipe 13, and described second heat exchanger 12 connects the second output pipe 14, and described first output pipe 13 is communicated with described evaporimeter 3 by the 3rd output pipe 15 with described second output pipe 14; First pressure-regulating device 4, is located on described first output pipe 13; Second pressure-regulating device 5, is located on described second output pipe 14; Control valve 6, is positioned at the input B of described second heat exchanger 12, controls the refrigerant input B that refrigerant enters described second heat exchanger 12.
Described first pressure-regulating device 4 is electric expansion valve, and described second pressure-regulating device 5 is electric expansion valve.
Described second output pipe 14 is also provided with check valve 7.Described check valve 7 can prevent the refrigerant flowed out in the second heat exchanger 12 from being flowed back in the second heat exchanger 12 by described second output pipe 14.
Described Teat pump boiler needs when half courage heating mode work, the isolated operation of described First Heat Exchanger 11 can be selected, the controller 6 being now positioned at described second heat exchanger 12 refrigerant input B is in closed condition, and described control valve 6 controls refrigerant and only enters described First Heat Exchanger 11 input A; Regulate the rotation speed of fan of described first pressure-regulating device 4 and/or evaporimeter 3, described second pressure-regulating device 5 inlet port pressure is made to be greater than described second pressure-regulating device 5 outlet pressures, and then the refrigerant controlled in described second heat exchanger 12 can flow out from described second heat exchanger 12, enter whole heat pump heating system.That is can enable to lodge in described second heat exchanger 12 or leak the refrigerant entered in the second heat exchanger 12 to be used effectively, participate in the thermal cycle of half courage heating mode, thus effectively can ensure the internal circulating load of refrigerant in Teat pump boiler all the time, make it have higher heat exchange efficiency.
Described Teat pump boiler needs when full courage heating mode work, can select to allow described First Heat Exchanger 11, second heat exchanger 12 run simultaneously, the controller 6 being positioned at described second heat exchanger 12 refrigerant input B is in open mode, described first pressure-regulating device 4 is electric expansion valve, is in closed condition.Described control valve 6 controls refrigerant and enters described First Heat Exchanger 11, second heat exchanger 12 input simultaneously, heats whole courage.
Refer to Fig. 9, be Teat pump boiler second series system system diagram of the present invention, itself and described first series system difference are: described first output pipe 13 is also provided with control valve 6, and described pressure-regulating device 4 is capillary.
Described Teat pump boiler needs when half courage heating mode work, the isolated operation of described First Heat Exchanger 11 can be selected, the controller 6 being now positioned at described second heat exchanger 12 refrigerant input B is in closed condition, control valve 6 on described first output pipe 13 is in open mode, and described control valve 6 controls refrigerant and only enters described First Heat Exchanger 11 input A; Regulate the rotation speed of fan of described evaporimeter 3, described second pressure-regulating device 5 inlet port pressure is made to be greater than described second pressure-regulating device 5 outlet pressures, and then the refrigerant controlled in described second heat exchanger 12 can flow out from described second heat exchanger 12, enter whole heat pump heating system.That is can enable to lodge in described second heat exchanger 12 or leak the refrigerant entered in the second heat exchanger 12 to be used effectively, participate in the thermal cycle of half courage heating mode, thus effectively can ensure the internal circulating load of refrigerant in Teat pump boiler all the time, make it have higher heat exchange efficiency.
Described Teat pump boiler needs when full courage heating mode work, can select to allow described First Heat Exchanger 11, second heat exchanger 12 run simultaneously, the controller 6 being positioned at described second heat exchanger 12 refrigerant input B is in open mode, and the control valve 6 be positioned on described first output pipe 13 is in closed condition.Described control valve 6 controls refrigerant and enters described First Heat Exchanger 11, second heat exchanger 12 input simultaneously, thus heats whole courage.
Refer to Figure 10, be Teat pump boiler of the present invention 3rd series system system diagram, itself and described first series system difference are: described second pressure-regulating device 5 is capillary.
Described Teat pump boiler needs in half courage heating mode work, can select to allow the isolated operation of described First Heat Exchanger 11, the controller 6 being now positioned at described second heat exchanger 12 refrigerant input B is in closed condition, control valve 6 on described first output pipe 13 is in open mode, and described control valve 6 controls refrigerant and only enters described First Heat Exchanger 11 input A; Regulate the rotation speed of fan of described evaporimeter 3, described second pressure-regulating device 5 inlet port pressure is made to be greater than described second pressure-regulating device 5 outlet pressures, and then the refrigerant controlled in described second heat exchanger 12 can flow out from described second heat exchanger 12, enter whole heat pump heating system.That is can enable to lodge in described second heat exchanger 12 or leak the refrigerant entered in the second heat exchanger 12 to be used effectively, participate in the thermal cycle of half courage heating mode, thus effectively can ensure the internal circulating load of refrigerant in Teat pump boiler all the time, make it have higher heat exchange efficiency.
Described Teat pump boiler needs when full courage heating mode work, can select to allow described First Heat Exchanger 11, second heat exchanger 12 run simultaneously, the controller 6 being positioned at described second heat exchanger 12 refrigerant input B is in open mode, described first pressure-regulating device 4 is electric expansion valve, is in closed condition.Described control valve 6 controls refrigerant and enters described First Heat Exchanger 11, second heat exchanger 12 input simultaneously, thus heats whole courage.
Referring to Figure 11, is Teat pump boiler of the present invention 4th series system system diagram.Described Teat pump boiler comprises: water tank 1, is arranged on the First Heat Exchanger 11 on described water tank 1 and the second heat exchanger 12; Compressor 2, evaporimeter 3, described First Heat Exchanger 11, second heat exchanger 12 is connected between described compressor 2 and described evaporimeter 3 by the mode of series connection, and described First Heat Exchanger 11 can isolated operation; Described First Heat Exchanger 11 connects the first output pipe 13, and described second heat exchanger 12 connects the second output pipe 14, and described first output pipe 13 is communicated with described evaporimeter 3 by the 3rd output pipe 15 with described second output pipe 14; First pressure-regulating device 4, is located on described first output pipe 13; Second pressure-regulating device 5, is located on described 3rd output pipe 15; Control valve 6, is positioned at the input B of described second heat exchanger 12, controls the refrigerant input B that refrigerant enters described second heat exchanger 12.
Described first pressure-regulating device 4 is electric expansion valve, and described second pressure-regulating device 5 is electric expansion valve.
Described Teat pump boiler needs when half courage heating mode work, the isolated operation of described First Heat Exchanger 11 can be selected, the controller 6 being now positioned at described second heat exchanger 12 refrigerant input B is in closed condition, and described control valve 6 controls refrigerant and only enters described First Heat Exchanger 11 input A; Regulate the rotation speed of fan of described second pressure-regulating device 5 and/or evaporimeter 3, described second pressure-regulating device 5 inlet port pressure is made to be greater than described second pressure-regulating device 5 outlet pressures, and then the refrigerant controlled in described second heat exchanger 12 can flow out from described second heat exchanger 12, enter whole heat pump heating system.That is can enable to lodge in described second heat exchanger 12 or leak the refrigerant entered in the second heat exchanger 12 to be used effectively, participate in the thermal cycle of half courage heating mode, thus effectively can ensure the internal circulating load of refrigerant in Teat pump boiler all the time, make it have higher heat exchange efficiency.
Described Teat pump boiler needs when full courage heating mode work, can select to allow described First Heat Exchanger 11, second heat exchanger 12 run simultaneously, the controller 6 being positioned at described second heat exchanger 12 refrigerant input B is in open mode, described first pressure-regulating device 4 is electric expansion valve, is in closed condition.Described control valve 6 controls refrigerant and enters described First Heat Exchanger 11, second heat exchanger 12 input simultaneously, thus heats whole courage.
Present invention also offers the control method based on above-mentioned Teat pump boiler, it comprises:
During described First Heat Exchanger 11 isolated operation, described control valve 6 controls refrigerant and only enters described First Heat Exchanger 11 input A;
During described second heat exchanger 12 isolated operation, described control valve 6 controls refrigerant and only enters described second heat exchanger 12 input B;
When described First Heat Exchanger 11 and described second heat exchanger 12 run simultaneously, described control valve 6 controls refrigerant and enters described First Heat Exchanger 11 and described second heat exchanger 12 simultaneously.
Described first pressure-regulating device 4 can be electric expansion valve.Such as when described First Heat Exchanger 11 isolated operation, the refrigerant that described second pressure-regulating device 5 controls in described second heat exchanger 12 can flow out from described second heat exchanger 12.Concrete, by regulating the rotation speed of fan of described first pressure-regulating device 4 and/or evaporimeter 3, described second pressure-regulating device 5 inlet port pressure is made to be greater than described second pressure-regulating device 5 outlet pressures, thus realize the refrigerant in described second heat exchanger 12 can flow out from described second heat exchanger 12, enter whole heat pump heating system.That is can enable to lodge in described second heat exchanger 12 or leak the refrigerant entered in the second heat exchanger 12 to be used effectively, participate in the thermal cycle of half courage heating mode, thus effectively can ensure the internal circulating load of refrigerant in Teat pump boiler all the time, make it have higher heat exchange efficiency.
The rotation speed of fan mode of described first pressure-regulating device 4 of above-mentioned adjustment and/or evaporimeter 3, described second pressure-regulating device 5 input pressure can be made to be greater than the second pressure-regulating device 5 output end pressure and preset value sum, and then by described second pressure-regulating device 5, and the refrigerant in the second heat exchanger 2 be connected with described second pressure-regulating device 5 is from sucking-off in described second heat exchanger 12.
The mode of the rotation speed of fan of described first pressure-regulating device 4 of above-mentioned adjustment and/or evaporimeter 3, the refrigerant pressure of described evaporimeter 3 refrigerant input can be made to be less than refrigerant pressure in described second heat exchanger 12, and then the refrigerant sucking-off will accumulated in described second heat exchanger 12.
Described Teat pump boiler also comprises the first checkout gear 120 for obtaining the first pressure information in described second heat exchanger 12, for obtaining the second detection device 30 of described evaporimeter 3 refrigerant inlet end second pressure information, according to described first pressure information and the second pressure information, regulate the rotation speed of fan of described first pressure-regulating device 4 or evaporimeter 3, make described first pressure information be greater than described second pressure information.If when described first pressure information is less than or equal to described second pressure information, described first pressure-regulating device 4 is then regulated to reduce flow and/or reduce the rotation speed of fan of described evaporimeter 3, and then make the refrigerant pressure of described evaporimeter 3 refrigerant input be less than refrigerant pressure in described second heat exchanger 12, the refrigerant accumulated in described second heat exchanger 12 or leakage are entered the refrigerant sucking-off in the second heat exchanger 12.
When described first checkout gear 120, described second detection device 30 are pressure sensor, the first pressure information that described first checkout gear 120 obtains is force value in described second heat exchanger 12, the force value of what described second detection device 30 obtained is described evaporimeter 3 refrigerant inlet end.When the force value in described second heat exchanger 12 is less than or equal to the force value of described evaporimeter 3 refrigerant inlet end, described first pressure-regulating device 4 is then regulated to reduce flow and/or reduce the rotation speed of fan of described evaporimeter 3, and then make the refrigerant pressure of described evaporimeter 3 refrigerant input be less than refrigerant pressure in described second heat exchanger 12, by the refrigerant sucking-off of accumulating in described second heat exchanger 12.
When described first checkout gear 120, described second detection device 30 are temperature sensor, the first pressure information that described first checkout gear 120 obtains is the temperature value of refrigerant in described second heat exchanger 12, the second pressure information that described second detection device 30 obtains is the temperature of described evaporimeter 3 input, because temperature and pressure have proportional relation one to one, therefore described temperature directly can reflect the size of pressure.Under half courage heating mode, according to the temperature that described first checkout gear 120, described second detection device 30 obtain, the rotation speed of fan of adjustable described first pressure-regulating device 4 and/or evaporimeter 3, make the refrigerant temperature in described second heat exchanger 12 be greater than refrigerant temperature and the predetermined value sum of described evaporimeter 3 refrigerant input, and then ensure that the refrigerant in described second heat exchanger 12 can by sucking-off effectively.Described preset value is thermal constant, and its value is variable constant, such as, can be 8,9,10 etc.When the refrigerant temperature in described second heat exchanger 12 is greater than refrigerant temperature and the predetermined value sum of described evaporimeter 3 refrigerant input, fast and effeciently the refrigerant accumulated in described second heat exchanger 12 or leakage can be entered the refrigerant sucking-off in the second heat exchanger 12, participate in the thermal cycle of half courage heating mode, thus effectively can ensure the internal circulating load of refrigerant in Teat pump boiler all the time, make it have higher heat exchange efficiency.
The invention provides a kind of Teat pump boiler and control method thereof, relative to existing, there is half courage heating, full courage adds the Teat pump boiler of hot-swapping function, when needs are in half courage heating mode work, the controller 6 being positioned at described second heat exchanger 12 refrigerant input B is in closed condition, the isolated operation of described First Heat Exchanger 11, by regulating the rotation speed of fan of described first pressure-regulating device 4 and/or evaporimeter 3, described second pressure-regulating device 5 inlet port pressure is made to be greater than described second pressure-regulating device 5 outlet pressures, and then the refrigerant controlled in described second heat exchanger 12 can flow out from described second heat exchanger 12, enter whole heat pump heating system.That is can enable to lodge in described second heat exchanger 12 or leak the refrigerant entered in the second heat exchanger 12 to be used effectively, participate in the thermal cycle of half courage heating mode, thus effectively can ensure the internal circulating load of refrigerant in Teat pump boiler all the time, make it have higher heat exchange efficiency.
The foregoing is only several embodiments of the present invention, although the embodiment disclosed by the present invention as above, the embodiment that described content just adopts for the ease of understanding the present invention, is not intended to limit the present invention.Any those skilled in the art; under the prerequisite not departing from the spirit and scope disclosed by the present invention; any amendment and change can be done on the formal of embodiment and details; but scope of patent protection of the present invention, the scope that still must define with appended claims is as the criterion.
Claims (19)
1. a Teat pump boiler, is characterized in that, described Teat pump boiler comprises:
Water tank, is arranged on the First Heat Exchanger on described water tank and the second heat exchanger;
Compressor, evaporimeter, described First Heat Exchanger and described second heat exchanger are connected between described compressor and described evaporimeter, and described First Heat Exchanger can isolated operation; Described First Heat Exchanger connects the first output pipe, and described second heat exchanger connects the second output pipe, and described first output pipe is communicated with described evaporimeter by the 3rd output pipe with described second output pipe;
First pressure-regulating device, is located on described first output pipe;
Second pressure-regulating device, is located on described second output pipe or described 3rd output pipe;
Control valve, controls the refrigerant input that refrigerant enters described First Heat Exchanger and/or described second heat exchanger.
2. Teat pump boiler as claimed in claim 1, it is characterized in that: described Teat pump boiler also comprises the first checkout gear for obtaining the first pressure information in described second heat exchanger, for obtaining the second detection device of described evaporimeter refrigerant inlet end second pressure information.
3. Teat pump boiler as claimed in claim 2, is characterized in that: described first checkout gear and/or described second detection device are pressure sensor.
4. Teat pump boiler as claimed in claim 2, is characterized in that: described first checkout gear and/or described second detection device are temperature sensor.
5. Teat pump boiler as claimed in claim 2, is characterized in that: also comprise the temperature sensor be arranged on described water tank, indirectly to obtain the temperature of described second heat exchanger.
6. Teat pump boiler as claimed in claim 1, is characterized in that: described First Heat Exchanger is positioned on described second heat exchanger.
7. Teat pump boiler as claimed in claim 1, is characterized in that: described First Heat Exchanger, the second heat exchanger are connected between described compressor and described evaporimeter by mode in parallel.
8. Teat pump boiler as claimed in claim 7, is characterized in that: described second pressure-regulating device is located on described second output pipe.
9. Teat pump boiler as claimed in claim 1, is characterized in that: described control valve is positioned at the input of described second heat exchanger.
10. Teat pump boiler as claimed in claim 1, is characterized in that: described First Heat Exchanger, the second heat exchanger are connected between described compressor and evaporimeter by the mode of series connection.
11. Teat pump boilers as claimed in claim 10, is characterized in that: described second pressure-regulating device is located on described second output pipe or described 3rd output pipe.
12. Teat pump boilers as claimed in claim 1, is characterized in that: described second output pipe is also provided with check valve.
13. Teat pump boilers as claimed in claim 1, is characterized in that: described first pressure-regulating device is electric expansion valve, and described second pressure-regulating device is electric expansion valve or capillary or heating power expansion valve.
The control method of 14. 1 kinds of Teat pump boilers as claimed in claim 1, is characterized in that, comprising:
During described First Heat Exchanger isolated operation, described control valve controls refrigerant and only enters described First Heat Exchanger input;
During described second heat exchanger isolated operation, described control valve controls refrigerant and only enters described second heat exchanger input;
When described First Heat Exchanger and described second heat exchanger run simultaneously, described control valve controls refrigerant and enters described First Heat Exchanger and described second heat exchanger simultaneously.
The control method of 15. Teat pump boilers as claimed in claim 14, is characterized in that: during described First Heat Exchanger isolated operation, and the refrigerant that described second pressure-regulating device controls in described second heat exchanger can flow out from described second heat exchanger;
Regulate the rotation speed of fan of described first pressure-regulating device and/or evaporimeter, make described second pressure-regulating device inlet port pressure be greater than described second pressure-regulating device outlet pressures.
The control method of 16. Teat pump boilers as claimed in claim 15, it is characterized in that: the rotation speed of fan regulating described first pressure-regulating device and/or evaporimeter, make the refrigerant pressure of described evaporimeter refrigerant input be less than refrigerant pressure in described second heat exchanger.
The control method of 17. Teat pump boilers as claimed in claim 16, it is characterized in that: described Teat pump boiler also comprises the first checkout gear for obtaining the first pressure information in described second heat exchanger, for obtaining the second detection device of described evaporimeter refrigerant inlet end second pressure information, according to described first pressure information and the second pressure information, regulate the rotation speed of fan of described first pressure-regulating device and/or evaporimeter, make described first pressure information be greater than described second pressure information.
The control method of 18. Teat pump boilers as claimed in claim 17, it is characterized in that, described method also comprises: if when described first pressure information is less than or equal to described second pressure information, then regulate described first pressure-regulating device to reduce flow and/or reduce the rotation speed of fan of described evaporimeter.
The control method of 19. Teat pump boilers as claimed in claim 15, it is characterized in that: the rotation speed of fan regulating described first pressure-regulating device and/or evaporimeter, make described second pressure-regulating device input pressure be greater than the second pressure-regulating device output end pressure and preset value sum.
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| CN105157229A (en) * | 2015-07-14 | 2015-12-16 | Tcl空调器(中山)有限公司 | Water tank of hot water heating machine and hot water heating machine |
| CN106369822A (en) * | 2016-09-13 | 2017-02-01 | 天津商业大学 | Heat pump heating system |
| CN106979617A (en) * | 2017-05-15 | 2017-07-25 | 珠海格力电器股份有限公司 | Heat pump water heating device and control method thereof |
| CN107449143A (en) * | 2017-09-06 | 2017-12-08 | 广东纽恩泰新能源科技发展有限公司 | A kind of Split hot pump water heater |
| CN110186148A (en) * | 2019-05-27 | 2019-08-30 | 宁波奥克斯电气股份有限公司 | A kind of control method, system and the air-conditioning of the anti-secondary refrigerant leakage protection of hot water model |
| CN110906589A (en) * | 2019-10-29 | 2020-03-24 | 青岛海尔新能源电器有限公司 | Heat exchanger for heat pump and heat pump water heater |
| CN110940091A (en) * | 2019-12-09 | 2020-03-31 | 珠海格力电器股份有限公司 | Fluorine deficiency judgment method and heat pump water heater |
| CN112984799A (en) * | 2021-03-25 | 2021-06-18 | 珠海格力电器股份有限公司 | Air energy water heater and control method thereof |
| CN114576746A (en) * | 2022-02-18 | 2022-06-03 | 中山市爱美泰电器有限公司 | Heat pump air conditioner of coupling heat pump water heater |
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| CN114576746A (en) * | 2022-02-18 | 2022-06-03 | 中山市爱美泰电器有限公司 | Heat pump air conditioner of coupling heat pump water heater |
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