CN103411308A

CN103411308A - Heat insulation control method and device for heat pump water heater and heat pump water heater

Info

Publication number: CN103411308A
Application number: CN2013103215049A
Authority: CN
Inventors: 王保森
Original assignee: Guangdong Midea HVAC Equipment Co Ltd
Current assignee: Guangdong Midea HVAC Equipment Co Ltd
Priority date: 2013-07-26
Filing date: 2013-07-26
Publication date: 2013-11-27
Anticipated expiration: 2033-07-26
Also published as: CN103411308B

Abstract

The invention provides a heat insulation control method and device for a heat pump water heater and a heat pump water heater. The heat insulation control method comprises the following steps: acquiring the current water temperature T5 inside a water tank; comparing the current water temperature T5 inside the water tank with an acceptable temperature value TL, and when the current water temperature T5 inside the water tank is smaller than the acceptable temperature value TL, judging whether the start-up condition of a heat pump mainframe is satisfied, if yes, starting up the heat pump mainframe to heat water in the water tank, and if no, judging whether the start-up condition of an auxiliary electric heater is satisfied, if yes, starting up the auxiliary electric heater to heat water in the water tank. The heat insulation control method for the heat pump water heater can prevent frequent start and stop of the auxiliary electric heater, so that the service life of the auxiliary electric heater is prolonged; frequent starting of multiple auxiliary electric heaters is also avoided; under the premise of not influencing normal use of other electric appliances of users, water comfort degree is guaranteed for the users and the use cost is lowered.

Description

The thermal-insulation control method of Teat pump boiler and device, and Teat pump boiler

Technical field

The present invention relates to the Teat pump boiler technical field, relate in particular to a kind of thermal-insulation control method of Teat pump boiler and device, and Teat pump boiler.

Background technology

In the Teat pump boiler field, owing to manufacturing simple high water temperature heat pump, there is certain difficulty, so in order to produce high water temperature hot water, tend to, in the water tank of existing Teat pump boiler, electrical auxiliary heater (being the heat pump electric heater) is installed, until heat pump to after can reaching maximum temperature, by electrical auxiliary heater, the hot water in this water tank is heated again, reach the purpose of producing high water temperature hot water.But water temperature is higher, at water or while placing for a long time, temperature drop is just more obvious, how to guarantee that whole box water maintains higher temperature, not only to lean on good water tank heat-insulation layers to avoid water and environment temperature heat exchange cooling, also need to when water, heat the water that newly covers water tank.Therefore, how at water or while placing for a long time, keep high water temperature, just become the key of heat pump electric heater water comfort level.

In order to reach the effect that keeps water temperature, in existing Teat pump boiler, generally can set the open temp of heat pump open temp and electrical auxiliary heater, as long as water temperature detected, drop to corresponding temperature, heat pump or electrical auxiliary heater will be opened, although this fixed mode heating also may meet the demand of water, but the open temp of electrical auxiliary heater generally can be higher than the open temp of heat pump, and this design temperature is generally unadjustable, the frequent start-stop that so just causes electrical auxiliary heater, affect service life, power consumption increases, increase use cost, if and Teat pump boiler is provided with two or more electrical auxiliary heaters, during the simultaneously frequent start-stop of so all electrical heating, can cause power load to change greatly, affect the normal use of other electrical equipment of client.

Summary of the invention

Main purpose of the present invention is to provide a kind of thermal-insulation control method of Teat pump boiler and device, and Teat pump boiler, is intended to improve the comfort level of user's water, reduces use cost and increases the service life.

To achieve these goals, the invention provides a kind of thermal-insulation control method of Teat pump boiler, comprise the steps:

Current water temperature T 5 in step S10, collection water tank;

Step S11, the current water temperature T 5 in water tank is compared with the temperature value the accepted TL set, lower than can accept temperature value TL the time, send the instruction that needs to start heating when the current water temperature T 5 in water tank;

Step S12, the described need of reception start the instruction of heating, and first judge whether to meet the unlocking condition of heat pump main frame, when meeting the unlocking condition of heat pump main frame, open the heat pump main frame water in water tank is heated; When not meeting the unlocking condition of heat pump main frame, then judge whether to meet the unlocking condition of electrical auxiliary heater, when meeting the unlocking condition of electrical auxiliary heater, open electrical auxiliary heater the water in water tank is heated.

Preferably, in step S12, judge whether that the unlocking condition that meets the heat pump main frame comprises: judge that the actual environment temperature is whether within the operating ambient temperature of heat pump main frame and judge whether the current water temperature T 5 in water tank drops to the open temp of heat pump host setting.

Preferably, in described water tank, from down to up a plurality of water level sections are respectively arranged with a plurality of electrical auxiliary heaters, in described a plurality of water level sections, also are respectively equipped with a plurality of temperature sensors to gather respectively the current water temperature of described a plurality of water level sections;

Described step S10 specifically comprises:

Gather in water tank a plurality of water level sections from down to up current water temperature T 51, T52 ..., T5n, wherein n is natural number, and n >=2;

Described step S11 specifically comprises:

By the current water temperature T 51 of described a plurality of water level sections, T52 ..., T5n successively with the temperature value accepted TL1, the TL2 of corresponding setting ..., TLn compares, during the temperature value accepted set lower than correspondence when the current water temperature of part water level section in water tank, send the instruction that needs to start heating part water level section; When in water tank all the current water temperature of water level sections all set lower than correspondence the temperature value accepted the time, send the instruction that needs to start the whole water level sections of heating;

Described step S12 specifically comprises:

Receive the described instruction that needs to start heating part water level section, first judge whether to meet the unlocking condition of heat pump main frame, when meeting the unlocking condition of heat pump main frame, opening the heat pump main frame heats the water in water tank, when not meeting the unlocking condition of heat pump main frame, judge whether again to meet the unlocking condition of the electrical auxiliary heater in the part water level section that needs heating, when meeting the unlocking condition of electrical auxiliary heater, the electrical auxiliary heater of opening in the part water level section that needs heating heats the water in water tank; Or

Receive the described instruction that needs to start the whole water level sections of heating, first judge whether to meet the unlocking condition of heat pump main frame, when meeting the unlocking condition of heat pump main frame, opening the heat pump main frame heats the water in water tank, when not meeting the unlocking condition of heat pump main frame, the part electrical auxiliary heater of opening near tank top heats the water in water tank or opens whole electrical auxiliary heaters the water in water tank is heated.

Preferably, also comprised before described step S10: step S01, start water temperature in the Teat pump boiler heating water tank to the target temperature value TS of setting, then stopped heating start respectively timing for described a plurality of water level sections;

Described step S11 also comprises: during the temperature value accepted set lower than correspondence when the current water temperature of a certain water level section, stop this water level section timing, the water temperature that obtains this water level section drops to the corresponding elapsed time that the temperature value accepted continued of setting by target temperature value TS, the temperature value the accepted TL1 that from down to up the current water temperature of whole water level sections is all set lower than correspondence in water tank, TL2, during TLn, the water temperature that obtains whole water level sections from down to up drops to the corresponding temperature value the accepted TL1 set by target temperature value TS, TL2, the elapsed time t51 that TLn continued, t52, t5n,

Described when not meeting the unlocking condition of heat pump main frame, open part electrical auxiliary heater near tank top and the water in water tank is heated or open whole electrical auxiliary heaters the step that the water in water tank heats is specifically comprised:

When not meeting the unlocking condition of heat pump main frame, the water temperature of from down to up whole water level sections is dropped to the corresponding temperature value the accepted TL1 set by target temperature value TS, TL2, the elapsed time t51 that TLn continued, t52, t5n respectively with corresponding preset time t c1, tc2, tcn compares successively, when the elapsed time of whole water level sections does not all surpass corresponding Preset Time or only has part to surpass corresponding Preset Time, the part electrical auxiliary heater of opening near tank top heats the water in water tank, when elapsed time of whole water level sections during all over corresponding Preset Time, opening whole electrical auxiliary heaters heats the water in water tank.

Preferably, in described water tank, from down to up bottom water level section and top water level section is respectively arranged with the first electrical auxiliary heater and the second electrical auxiliary heater, and described bottom water level section and top water level section also are respectively equipped with the first temperature sensor and the second temperature sensor to gather respectively the current water temperature of described bottom water level section and top water level section;

Described step S10 specifically comprises:

Gather current water temperature T 51, the T52 of the interior bottom water level section of water tank and top water level section;

Described step S11 specifically comprises:

The current water temperature T of bottom water level section 51 is compared with the temperature value the accepted TL1 set, when the current water temperature T 51 of bottom water level section lower than can accept temperature value TL1 the time, again the current water temperature T of top water level section 52 is compared with the temperature value the accepted TL2 set, when the current water temperature T 52 of top water level section is not less than can accept temperature value TL2 the time, send the instruction that needs to start heating bottom water level section, when the current water temperature T 52 of top water level section, lower than can accept temperature value TL2 the time, send the instruction that needs to start the whole water level sections of heating;

Described step S12 specifically comprises:

Receive the described instruction that needs to start heating bottom water level section, first judge whether to meet the unlocking condition of heat pump main frame, when meeting the unlocking condition of heat pump main frame, opening the heat pump main frame heats the water in water tank, when not meeting the unlocking condition of heat pump main frame, judge whether again to meet the unlocking condition of the first electrical auxiliary heater in the water level section of bottom, when meeting the unlocking condition of the first electrical auxiliary heater, open the first electrical auxiliary heater the water in water tank is heated; Or

Receive the described instruction that needs to start the whole water level sections of heating, first judge whether to meet the unlocking condition of heat pump main frame, when meeting the unlocking condition of heat pump main frame, opening the heat pump main frame heats the water in water tank, when not meeting the unlocking condition of heat pump main frame, open the second electrical auxiliary heater and the water in water tank is heated or open simultaneously the first electrical auxiliary heater and the second electrical auxiliary heater heats the water in water tank.

Preferably, also comprised before described step S10: start water temperature in the Teat pump boiler heating water tank to the target temperature value TS of setting, then stopped heating start respectively timing for described bottom water level section and top water level section;

Described step S11 also comprises: during the temperature value accepted set lower than correspondence when the current water temperature of bottom water level section or top water level section, stop this water level section timing, the water temperature that obtains this water level section is dropped to and can be accepted the elapsed time that temperature value continues by target temperature value TS, the current water temperature T 51 of bottom water level section and top water level section in water tank, the temperature value the accepted TL1 that T52 all sets lower than correspondence, during TL2, the water temperature that obtains bottom water level section and top water level section drops to the corresponding temperature value the accepted TL1 set by target temperature value TS, the elapsed time t51 that TL2 continued, t52,

Described when not meeting the unlocking condition of heat pump main frame, open the second electrical auxiliary heater and the water in water tank is heated or open simultaneously the first electrical auxiliary heater and the second electrical auxiliary heater specifically comprises the step that the water in water tank heats:

When not meeting the unlocking condition of heat pump main frame, the water temperature of bottom water level section and top water level section is dropped to the corresponding temperature value the accepted TL1 set by target temperature value TS, the elapsed time t51 that TL2 continued, t52 respectively with corresponding preset time t c1, tc2 compares successively, elapsed time t51 when bottom water level section and top water level section, t52 does not all surpass corresponding preset time t c1, tc2 or while only having the elapsed time t51 of bottom water level section to surpass corresponding preset time t c1, opening the second electrical auxiliary heater heats the water in water tank, elapsed time t51 when bottom water level section and top water level section, t52 is all over corresponding preset time t c1, during tc2, open simultaneously the first electrical auxiliary heater and the second electrical auxiliary heater heats the water in water tank.

The present invention also provides a kind of temperature preservation control device of Teat pump boiler, comprises temperature collect module, temperature contrast module and Executive Module, wherein:

Described temperature collect module, be used to gathering the current water temperature T 5 in water tank;

Described temperature contrast module, compare with the temperature value the accepted TL set for the current water temperature T 5 by water tank, and the current water temperature T 5 in water tank sends the instruction that needs to start heating lower than can accept temperature value TL the time;

Described Executive Module, for receiving the described unlocking condition that needs to start the instruction of heating and first judge whether to meet the heat pump main frame, when meeting the unlocking condition of heat pump main frame, opening the heat pump main frame heats the water in water tank, when not meeting the unlocking condition of heat pump main frame, judge whether again to meet the unlocking condition of electrical auxiliary heater, and when meeting the unlocking condition of electrical auxiliary heater, open electrical auxiliary heater the water in water tank is heated.

Preferably, described temperature collect module, specifically be used to the current water temperature T 51 that gathers in water tank a plurality of water level sections from down to up, T52 ..., T5n, wherein n is natural number, and n >=2;

Described temperature contrast module, specifically for the current water temperature T 51 by described a plurality of water level sections, T52 ..., T5n successively with the temperature value accepted TL1, the TL2 of corresponding setting ..., TLn compares, during the temperature value accepted set lower than correspondence when the current water temperature of part water level section in water tank, send the instruction that needs to start heating part water level section, when in water tank all the current water temperature of water level sections all send the instruction that needs to start the whole water level sections of heating lower than can accept temperature value the time;

Described Executive Module, specifically for:

Receive the described unlocking condition that needs to start the instruction of heating part water level section and first judge whether to meet the heat pump main frame, when meeting the unlocking condition of heat pump main frame, opening the heat pump main frame heats the water in water tank, when not meeting the unlocking condition of heat pump main frame, judge whether to meet the unlocking condition of the electrical auxiliary heater in the part water level section that needs heating, the electrical auxiliary heater of opening in the part water level section that needs heating when meeting the unlocking condition of electrical auxiliary heater heats the water in water tank again; And

Receive the described unlocking condition that needs to start the instruction of the whole water level sections of heating and first judge whether to meet the heat pump main frame, when meeting the unlocking condition of heat pump main frame, open the heat pump main frame water in water tank is heated, the part electrical auxiliary heater of opening near tank top when not meeting the unlocking condition of heat pump main frame heats the water in water tank or opens whole electrical auxiliary heaters the water in water tank is heated.

Preferably, also comprise setting module, start module and timing module, wherein:

Described setting module, the target temperature value TS that need be heated to be used to the water of setting in water tank;

Described startup module, arrive be used to the water temperature started in the Teat pump boiler heating water tank target temperature value TS set;

Described timing module, be used to the water temperature that records in water tank whole water level sections from down to up by target temperature value TS drop to the corresponding temperature value accepted TL1, the TL2 set ..., elapsed time t51, t52 that TLn continued ..., t5n;

Described Executive Module, also for after the instruction that starts the whole water level sections of heating at the described needs of reception and when not meeting the unlocking condition of heat pump main frame, the water temperature of from down to up whole water level sections is dropped to the corresponding temperature value the accepted TL1 set by target temperature value TS, TL2, the elapsed time t51 that TLn continued, t52, t5n respectively with corresponding preset time t c1, tc2, tcn compares successively, the part electrical auxiliary heater of opening near tank top when the elapsed time of whole water level sections does not all surpass corresponding Preset Time or only has part to surpass corresponding Preset Time heats the water in water tank, when elapsed time of whole water level sections during all over corresponding Preset Time, opening whole electrical auxiliary heaters heats the water in water tank.

Preferably, described temperature collect module, specifically be used to gathering current water temperature T 51, the T52 of bottom water level section and top water level section in water tank;

Described temperature contrast module, specifically for the current water temperature T 51 by bottom water level section, compare with the temperature value the accepted TL1 set, when the current water temperature T 51 of bottom water level section, the more current water temperature T of top water level section 52 is compared with the temperature value the accepted TL2 set lower than can accept temperature value TL1 the time, when being not less than can accept temperature value TL2 the time, the current water temperature T 52 of top water level section sends the instruction that needs to start heating bottom water level section, when the current water temperature T 52 of top water level section, send the instruction that needs to start the whole water level sections of heating lower than can accept temperature value TL2 the time,

Described Executive Module, specifically for:

Receive the described unlocking condition that needs to start the instruction of heating bottom water level section and first judge whether to meet the heat pump main frame, when meeting the unlocking condition of heat pump main frame, opening the heat pump main frame heats the water in water tank, when not meeting the unlocking condition of heat pump main frame, judge whether again to meet the unlocking condition of the first electrical auxiliary heater in the water level section of bottom, when meeting the unlocking condition of the first electrical auxiliary heater, open the first electrical auxiliary heater the water in water tank is heated; And

Receive the described unlocking condition that needs to start the instruction of the whole water level sections of heating and first judge whether to meet the heat pump main frame, when meeting the unlocking condition of heat pump main frame, open the heat pump main frame water in water tank is heated, when not meeting the unlocking condition of heat pump main frame, open the second electrical auxiliary heater and the water in water tank is heated or open simultaneously the first electrical auxiliary heater and the second electrical auxiliary heater heats the water in water tank.

Preferably, described temperature preservation control device also comprises setting module, starts module and timing module, wherein:

Described timing module, drop to by target temperature value TS elapsed time t51, the t52 that the corresponding temperature value accepted TL1, the TL2 set continued be used to the water temperature that records bottom water level section and top water level section;

Described Executive Module, also for after the instruction that starts the whole water level sections of heating at the described needs of reception and when not meeting the unlocking condition of heat pump main frame, the water temperature of bottom water level section and top water level section is dropped to the corresponding temperature value the accepted TL1 set by target temperature value TS, the elapsed time t51 that TL2 continued, t52 respectively with corresponding preset time t c1, tc2 compares successively, elapsed time t51 when bottom water level section and top water level section, t52 does not all surpass corresponding preset time t c1, tc2 or while only having the elapsed time t51 of bottom water level section to surpass corresponding preset time t c1, opening the second electrical auxiliary heater heats the water in water tank, elapsed time t51 when bottom water level section and top water level section, t52 is all over corresponding preset time t c1, during tc2, open simultaneously the first electrical auxiliary heater and the second electrical auxiliary heater heats the water in water tank.

The present invention also provides a kind of Teat pump boiler, comprise water tank and the heat pump main frame heated for the water in described water tank, described Teat pump boiler also comprises at least one electrical auxiliary heater, at least one temperature sensor, reaches the temperature preservation control device of aforesaid Teat pump boiler, and described at least one electrical auxiliary heater and at least one temperature sensor correspondence are arranged in described water tank.

The thermal-insulation control method of Teat pump boiler of the present invention, device and Teat pump boiler, water temperature in water tank being detected drops to while needing heating, by increasing the unlatching Rule of judgment of heat pump main frame and electrical auxiliary heater, the preferential heat pump main frame of opening heats, in the time can't enabling the heat pump main frame and heat, consider again to adopt electrical auxiliary heater to heat, avoid the frequent start-stop of electrical auxiliary heater, extend its service life; When in water tank, being provided with two above electrical auxiliary heaters that are positioned at different water level sections, according to the water temperature situation of change of the different water level sections of detect, regulate the opening sequence of electrical auxiliary heater and open quantity, avoid a plurality of electrical auxiliary heaters to open simultaneously frequently, do not affecting under the normal prerequisite of using of other electrical equipment of user, guarantee the comfort level of user's water, reduce use cost.

The accompanying drawing explanation

Fig. 1 is the schematic flow sheet of thermal-insulation control method one embodiment of Teat pump boiler of the present invention.

Fig. 2 is the refinement schematic flow sheet of the thermal-insulation control method of Teat pump boiler of the present invention.

Fig. 3 is the structure block diagram of the temperature preservation control device of Teat pump boiler of the present invention.

The realization of the object of the invention, functional characteristics and advantage, in connection with embodiment, are described further with reference to accompanying drawing.

The specific embodiment

Should be appreciated that the specific embodiment described herein, only in order to explain the present invention, is not intended to limit the present invention.

Core concept of the present invention is: the interior water temperature situation of change of water tank that detects Teat pump boiler, when the water temperature in water tank drops to the needs heating, by increasing the unlatching Rule of judgment of heat pump main frame and electrical auxiliary heater, the preferential heat pump main frame of opening heats, in the time can't enabling the heat pump main frame and heat, consider again to adopt electrical auxiliary heater to heat, avoid the frequent start-stop of electrical auxiliary heater, to extend its service life; When in water tank, being provided with two above electrical auxiliary heaters that are positioned at different water level sections, according to the water temperature situation of change of the different water level sections of detect, regulate the opening sequence of electrical auxiliary heater and open quantity, avoid a plurality of electrical auxiliary heaters to open simultaneously frequently, do not affecting under the normal prerequisite of using of other electrical equipment of user, guarantee the comfort level of user's water, reduce use cost.

Fig. 1 is the schematic flow sheet of thermal-insulation control method one embodiment of Teat pump boiler of the present invention, and the thermal-insulation control method of described Teat pump boiler, comprise the steps:

Current water temperature T 5 in step S10, collection water tank;

Current water temperature T 5 in water tank is periodically to detect by the temperature sensor be arranged in water tank.

When the current water temperature T 5 by water tank compares with the temperature value the accepted TL set, can be indirectly to compare by the water temperature the accepted temperature drop △ T5 set in Teat pump boiler, △ T5 can be acquiescence or set up on their own, TL=TS-△ T5, wherein TS is the target temperature value that the water in the water tank of setting need be heated to, and target temperature value TS is arranged as required voluntarily by the user on Teat pump boiler.By by T5 and TS-△ T5(, being TL) compare, determine that whether the interior current water temperature T 5 of water tank is lower than accepting temperature value TL, wherein, if T5 >=TS-△ T5, illustrate that the water temperature in water tank descends in the acceptable temperature range, do not need the water in water tank is heated, can turn back to step S10; If T5<TS-△ T5, illustrate that the water temperature decline in water tank has exceeded acceptable temperature range, need to the water in water tank be heated, can send the instruction that needs to start heating.

When the current water temperature T 5 by water tank compares with the temperature value the accepted TL set, can also be directly to compare by the temperature value the accepted TL set in Teat pump boiler, determine that by the magnitude relationship of the direct T5 of judgement and TL whether current water temperature in water tank is lower than accepting temperature value.

Judge whether that the unlocking condition that meets the heat pump main frame comprises: judge that the actual environment temperature is whether within the operating ambient temperature of heat pump main frame and judge whether the current water temperature T 5 in water tank drops to the open temp of heat pump host setting.

The heat pump main frame is provided with an operating ambient temperature (for example-5 ℃～50 ℃) and an open temp.When the actual environment temperature is in operating ambient temperature, allow the heat pump main frame to open; When the actual environment temperature is not in operating ambient temperature, when namely the actual environment temperature is too low or too high, do not allow the heat pump main frame to open to prevent the heat pump main frame is caused damage.The operating ambient temperature of heat pump main frame is acquiescence.During higher than the open temp of heat pump main frame, the heat pump main frame is not opened when the current water temperature in water tank, only has and drops to the open temp of heat pump main frame when following when the water temperature in water tank, and the heat pump main frame is just opened with the water in water tank and heated.The open temp of heat pump main frame is that acquiescence or user set up on their own.

In Teat pump boiler, be provided with equally open temp for electrical auxiliary heater, when the current water temperature in water tank during higher than the open temp of electrical auxiliary heater, electrical auxiliary heater is not opened, only have and drop to the open temp of electrical auxiliary heater when following when the current water temperature in water tank, electrical auxiliary heater is just opened, and heats with the water in water tank.The open temp of electrical auxiliary heater is that acquiescence or user set up on their own.

When not meeting the unlocking condition of electrical auxiliary heater, can return to step S10.

In step S12, when unlatching heat pump main frame heats the water in water tank: if close the heat pump main frame after the target temperature value TS set, below the termination water temperature (the highest water temperature that the heat pump main frame can heat) of heat pump main frame, directly is heated to set temperature value TS by the water in water tank by the heat pump main frame; If set temperature value TS is higher than the termination water temperature of heat pump main frame, first by the heat pump main frame, the water in water tank is heated to and stops closing the heat pump main frame after water temperature, then can open electrical auxiliary heater the water in water tank is continued to heating, after being heated to set temperature value TS, close electrical auxiliary heater, then can return to step S10.

In the present embodiment, by increasing the unlatching Rule of judgment of heat pump main frame and electrical auxiliary heater, the preferential heat pump main frame of opening heats, in the time can't enabling the heat pump main frame and heat, consider again to adopt electrical auxiliary heater to heat, avoid the frequent start-stop of electrical auxiliary heater, can extend the service life of electrical auxiliary heater.

An electrical auxiliary heater or a plurality of auxiliary electrical heater can be set in the water tank of Teat pump boiler, when from down to up a plurality of water level sections in water tank are respectively arranged with a plurality of electrical auxiliary heater, in described a plurality of water level section, also be respectively equipped with a plurality of temperature sensors to gather respectively the current water temperature of described a plurality of water level sections, in such cases:

Described step S10 specifically comprises: gather in water tank a plurality of water level sections from down to up current water temperature T 51, T52 ..., T5n, wherein n is natural number, and n >=2.

In water tank from down to up a plurality of water level sections current water temperature T 51, T52 ..., T5n be respectively by correspondence be arranged at a plurality of water level sections of this water tank a plurality of temperature sensor S1, S2 ..., Sn periodically detects.Now, the value of the current water temperature in water tank can be a plurality of water level sections current water temperature T 51, T52 ..., T5n mean value, T51, T52 ..., the maximum in T5n, T51, T52 ..., the minimum of a value in T5n or T51, T52 ..., the median in T5n.

Described step S11 specifically comprises: by the current water temperature T 51 of described a plurality of water level sections, T52 ..., T5n successively with the temperature value accepted TL1, the TL2 of corresponding setting ..., TLn compares, when the current water temperature of part water level section in water tank, lower than temperature value can be accepted the time, send the instruction that needs to start heating part water level section; When in water tank all the current water temperature of water level sections all lower than can accept temperature value the time, send the instruction that needs to start the whole water level sections of heating.

For the current water temperature T 51 of each water level section, T52 ..., the temperature value the accepted TL1, the TL2 that whether set lower than correspondence of T5n ..., TLn, adopt aforesaid method to judge respectively, do not repeat them here, wherein TL1, TL2 ..., TLn can be set as identical or not identical, correspondingly, adopt and set in the time of can accepting water temperature temperature drop mode, △ T51, △ T52 ..., △ Tn can be set as identical or not identical.Because the bottom water temperature of water tank is usually less than the top water temperature, therefore when the current water temperature of a plurality of water level sections of judgement, judge by the order from from bottom to top.

Described step S12 specifically comprises:

In order more accurately the water in the water tank of Teat pump boiler to be carried out to preservation and controlling, the present invention also the mode by adopting timing the judgement water temperature is descended is to place due to long-time that to cause be because water causes, and according to judged result, open corresponding electrical auxiliary heater and heat, further to reach the comfort level that guarantees user's water and the effect that reduces use cost.

When adopting timing mode to judge the reason of water temperature decline, before described step S10, also comprise: step S01, start water temperature in the Teat pump boiler heating water tank to the target temperature value TS of setting, then stopped heating start respectively timing for described a plurality of water level sections.

Target temperature value TS is set as required voluntarily by the user in Teat pump boiler, after the water temperature in water tank is heated to set temperature value TS, the water that the heat pump main frame of Teat pump boiler and each electrical auxiliary heater all close to stop in water tank heats, and then for a plurality of water level sections, starts respectively timing.

In the situation that adopt the timing judgement, described step S11 also comprises: when the current water temperature of a certain water level section lower than can accept temperature value the time, stop this water level section timing, the water temperature that obtains this water level section is dropped to and can be accepted the elapsed time that temperature value continues by target temperature value TS, TL1 when the temperature value accepted that from down to up the current water temperature of whole water level sections in water tank is all set lower than correspondence, TL2, TLn, the water temperature that obtains whole water level sections is from down to up dropped to and can be accepted temperature value TL1 by target temperature value TS, TL2, the elapsed time t51 that TLn continued, t52, t5n.

In the situation that adopt the timing judgement, described when not meeting the unlocking condition of heat pump main frame, open part electrical auxiliary heater near tank top and the water in water tank is heated or open whole electrical auxiliary heaters the step that the water in water tank heats is specifically comprised:

When not meeting the unlocking condition of heat pump main frame, the water temperature of from down to up whole water level sections is dropped to and can be accepted temperature value TL1 by target temperature value TS, TL2, the elapsed time t51 that TLn continued, t52, t5n respectively with corresponding preset time t c1, tc2, tcn compares successively, when the elapsed time of whole water level sections does not all surpass corresponding Preset Time or only has part to surpass corresponding Preset Time, the part electrical auxiliary heater of opening near tank top heats the water in water tank, when elapsed time of whole water level sections during all over corresponding Preset Time, opening whole electrical auxiliary heaters heats the water in water tank.

Preset time t c1, tc2 ..., tcn for the acquiescence or the user automatically set, preset time t c1, tc2 ..., tcn can be set as identical or different.

Fig. 2 is the refinement schematic flow sheet of the thermal-insulation control method of the Teat pump boiler of the present embodiment while being applied to two electrical auxiliary heaters of heat-pump hot-water utensil.In this application examples, in water tank, from down to up bottom water level section and top water level section is respectively arranged with the first electrical auxiliary heater and the second electrical auxiliary heater, described bottom water level section and top water level section also are respectively equipped with the first temperature sensor and the second temperature sensor to gather respectively the current water temperature of described bottom water level section and top water level section, in such cases:

Described step S10 specifically comprises: the current water temperature T 51, the T52 that gather the interior bottom water level section of water tank and top water level section;

Current water temperature T 51, the T52 of bottom water level section and top water level section are that the first temperature sensor and the second temperature sensor that is arranged at bottom water level section and top water level section by correspondence respectively periodically detects in water tank.Now, the value of the current water temperature in water tank can be the current water temperature T 51 of bottom water level section and top water level section, mean value, the higher value in T51, T52 or the smaller value in T51, T52 of T52.

Described step S11 specifically comprises: the current water temperature T of bottom water level section 51 is compared with the temperature value the accepted TL1 set, when the current water temperature T 51 of bottom water level section lower than can accept temperature value TL1 the time, again the current water temperature T of top water level section 52 is compared with the temperature value the accepted TL2 set, when the current water temperature T 52 of top water level section is not less than can accept temperature value TL2 the time, send the instruction that needs to start heating bottom water level section, when the current water temperature T 52 of top water level section lower than can accept temperature value TL2 the time, send the instruction that needs to start the whole water level sections of heating,

The temperature value the accepted TL1, the TL2 that whether lower than correspondence, set for the current water temperature T 51 of bottom water level section and top water level section, T52, adopt aforesaid method to judge respectively, do not repeat them here, wherein TL1, TL2 can be set as identical or not identical, correspondingly, adopt and set in the time of can accepting water temperature temperature drop mode, △ T51, △ T52 can be set as identical or not identical.

When the current water temperature T 51 by bottom water level section compares with the temperature value the accepted TL1 set, if being not less than, current water temperature T 51 can accept temperature value TL1, return to execution step S10.

Described step S12 specifically comprises:

In described step S12, the current water temperature T of bottom water level section 51 is compared with the temperature value the accepted TL1 set, when the current water temperature T 51 of bottom water level section is not less than can accept temperature value TL1 the time, return to execution step S10.

Judge whether again to meet the unlocking condition of the first electrical auxiliary heater in the water level section of bottom, when not meeting the unlocking condition of the first electrical auxiliary heater, return to execution step S10.

In order more accurately the water in the water tank of Teat pump boiler to be carried out to preservation and controlling, the present embodiment further the mode by adopting timing the judgement water temperature is descended is to place due to long-time that to cause be because water causes, and according to judged result, open corresponding electrical auxiliary heater and heat, further to reach the comfort level that guarantees user's water and the effect that reduces use cost.

When adopting timing mode to judge the reason of water temperature decline, before described step S10, also comprise: start water temperature in the Teat pump boiler heating water tank to the target temperature value TS of setting, then stopped heating start respectively timing for described bottom water level section and top water level section.

In the situation that adopt the timing judgement, described step S11 also comprises: when the current water temperature of bottom water level section or top water level section lower than can accept temperature value the time, stop this water level section timing, the water temperature that obtains this water level section is dropped to and can be accepted the elapsed time that temperature value continues by target temperature value TS, the current water temperature T 51 of bottom water level section and top water level section in water tank, the temperature value the accepted TL1 that T52 all sets lower than correspondence, during TL2, the water temperature that obtains bottom water level section and top water level section drops to the corresponding temperature value the accepted TL1 set by target temperature value TS, the elapsed time t51 that TL2 continued, t52.

In the situation that adopt the timing judgement, described when not meeting the unlocking condition of heat pump main frame, open the second electrical auxiliary heater and the water in water tank is heated or open simultaneously the first electrical auxiliary heater and the second electrical auxiliary heater specifically comprises the step that the water in water tank heats:

Preset time t c1, tc2 are that acquiescence or user set automatically, and preset time t c1, tc2 can be set as identical or different.

Fig. 3 is the structure block diagram of temperature preservation control device one embodiment of Teat pump boiler of the present invention, and the temperature preservation control device of described Teat pump boiler comprises temperature collect module, temperature contrast module and Executive Module, wherein:

From down to up a plurality of water level sections are respectively arranged with a plurality of electrical auxiliary heaters in the water tank of Teat pump boiler, and while in described a plurality of water level section, also being respectively equipped with a plurality of temperature sensor:

Described temperature collect module, specifically be used to the current water temperature T 51 that gathers in water tank a plurality of water level sections from down to up, T52 ..., T5n, wherein n is natural number, and n >=2;

Described temperature contrast module, specifically for the current water temperature T 51 by described a plurality of water level sections, T52 ..., T5n successively with the temperature value accepted TL1, the TL2 of corresponding setting ..., TLn compares, during the temperature value accepted set lower than correspondence when the current water temperature of part water level section in water tank, send the instruction that needs to start heating part water level section, when in water tank all the current water temperature of water level sections send the instruction that needs to start the whole water level sections of heating lower than can accept temperature value the time;

Described Executive Module, specifically for:

Further, the temperature preservation control device of described Teat pump boiler also comprises setting module, starts module and timing module, wherein:

Described timing module, be used to the water temperature that records in water tank whole water level sections from down to up by target temperature value TS drop to elapsed time t51, the t52 that can accept temperature value TL and be continued ..., t5n;

When accepting temperature value TL for the user while automatically setting, described setting module also can be accepted temperature value TL or the corresponding water temperature accepted temperature drop △ T5 with it for setting.

From down to up bottom water level section and top water level section is respectively arranged with the first electrical auxiliary heater and the second electrical auxiliary heater in water tank, and bottom water level section and top water level section are while also being respectively equipped with the first temperature sensor and the second temperature sensor:

Described temperature collect module, specifically be used to gathering current water temperature T 51, the T52 of bottom water level section and top water level section in water tank;

Described Executive Module, specifically for:

When preset time t c1, tc2 set automatically for the user, described setting module was also be used to setting preset time t c1, tc2.

Embodiments of the invention also provide a kind of Teat pump boiler, comprise water tank and the heat pump main frame heated for the water in described water tank, described Teat pump boiler also comprises at least one electrical auxiliary heater, at least one temperature sensor, reaches the temperature preservation control device of aforesaid Teat pump boiler, and described at least one electrical auxiliary heater and at least one temperature sensor correspondence are arranged in described water tank.

The thermal-insulation control method of the Teat pump boiler of the above embodiment of the present invention, device and Teat pump boiler, water temperature in water tank being detected drops to while needing heating, by increasing the unlatching Rule of judgment of heat pump main frame and electrical auxiliary heater, the preferential heat pump main frame of opening heats, in the time can't enabling the heat pump main frame and heat, consider again to adopt electrical auxiliary heater to heat, avoid the frequent start-stop of electrical auxiliary heater, extend its service life; When in water tank, being provided with two above electrical auxiliary heaters that are positioned at different water level sections, according to the water temperature situation of change of the different water level sections of detect, regulate the opening sequence of electrical auxiliary heater and open quantity, avoid a plurality of electrical auxiliary heaters to open simultaneously frequently, do not affecting under the normal prerequisite of using of other electrical equipment of user, guarantee the comfort level of user's water, reduce use cost.

The present invention is not limited to above embodiment, under the disclosed technology contents of above-mentioned embodiment, can also carry out various variations.Every equivalent structure transformation that utilizes specification of the present invention and accompanying drawing content to do, or directly or indirectly be used in other relevant technical fields, all in like manner be included in scope of patent protection of the present invention.

Claims

1. the thermal-insulation control method of a Teat pump boiler, is characterized in that, comprises the steps:

Current water temperature T 5 in step S10, collection water tank;

2. the thermal-insulation control method of Teat pump boiler as claimed in claim 1, it is characterized in that, in step S12, judge whether that the unlocking condition that meets the heat pump main frame comprises: judge that the actual environment temperature is whether within the operating ambient temperature of heat pump main frame and judge whether the current water temperature T 5 in water tank drops to the open temp of heat pump host setting.

3. the thermal-insulation control method of Teat pump boiler as claimed in claim 1, it is characterized in that, in described water tank, from down to up a plurality of water level sections are respectively arranged with a plurality of electrical auxiliary heaters, in described a plurality of water level sections, also are respectively equipped with a plurality of temperature sensors to gather respectively the current water temperature of described a plurality of water level sections;

Described step S10 specifically comprises:

Described step S11 specifically comprises:

Described step S12 specifically comprises:

4. the thermal-insulation control method of Teat pump boiler as claimed in claim 3, is characterized in that,

Before described step S10, also comprise: step S01, start water temperature in the Teat pump boiler heating water tank to the target temperature value TS of setting, then stopped heating start respectively timing for described a plurality of water level sections;

5. the thermal-insulation control method of Teat pump boiler as claimed in claim 1, it is characterized in that, in described water tank, from down to up bottom water level section and top water level section is respectively arranged with the first electrical auxiliary heater and the second electrical auxiliary heater, and described bottom water level section and top water level section also are respectively equipped with the first temperature sensor and the second temperature sensor to gather respectively the current water temperature of described bottom water level section and top water level section;

Described step S10 specifically comprises:

Described step S11 specifically comprises:

Described step S12 specifically comprises:

6. the thermal-insulation control method of Teat pump boiler as claimed in claim 5, is characterized in that,

Before described step S10, also comprise: start water temperature in the Teat pump boiler heating water tank to the target temperature value TS of setting, then stopped heating start respectively timing for described bottom water level section and top water level section;

7. the temperature preservation control device of a Teat pump boiler, is characterized in that, comprises temperature collect module, temperature contrast module and Executive Module, wherein:

8. the temperature preservation control device of Teat pump boiler as claimed in claim 7, is characterized in that,

Described Executive Module, specifically for:

9. the temperature preservation control device of Teat pump boiler as claimed in claim 8, is characterized in that, also comprise setting module, start module and timing module, wherein:

10. the temperature preservation control device of Teat pump boiler as claimed in claim 7, is characterized in that,

Described Executive Module, specifically for:

11. the temperature preservation control device of Teat pump boiler as claimed in claim 10, is characterized in that, also comprises setting module, starts module and timing module, wherein:

12. Teat pump boiler, comprise water tank and the heat pump main frame heated for the water in described water tank, it is characterized in that, described Teat pump boiler also comprises at least one electrical auxiliary heater, at least one temperature sensor, reaches the temperature preservation control device as the described Teat pump boiler of any one in claim 7 to 11, and described at least one electrical auxiliary heater and at least one temperature sensor correspondence are arranged in described water tank.