CN102261693A - Heat pump system for heating radiator under normal-temperature water source condition and operation method - Google Patents
Heat pump system for heating radiator under normal-temperature water source condition and operation method Download PDFInfo
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- CN102261693A CN102261693A CN2011101582519A CN201110158251A CN102261693A CN 102261693 A CN102261693 A CN 102261693A CN 2011101582519 A CN2011101582519 A CN 2011101582519A CN 201110158251 A CN201110158251 A CN 201110158251A CN 102261693 A CN102261693 A CN 102261693A
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- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
- Y02B30/12—Hot water central heating systems using heat pumps
Abstract
The invention discloses a heat pump system for heating a radiator under a normal-temperature water source condition and an operation method. The system comprises a radiator system and further comprises a first-stage heat pump and a second-stage heat pump. The first-stage heat pump, the second-stage heat pump and the radiator system are arranged in turn. The first-stage heat pump, the second-stage heat pump and the radiator system are connected through a communication pipeline and a switch valve. The operation method comprises: an operation method under a design load condition: simultaneously operating the first-stage heat pump and the second-stage heat pump; an operation method under a condition of more than 50% of design load: operating one heat pump unit in the first-stage heat pump and the second-stage heat pump; and an operation method under a condition of below 50% of design load: only operating the first-stage heat pump. According to the heat pump system and the operation method disclosed by the invention, the purpose of extracting heat from a normal-temperature water source to prepare high-temperature heating water is achieved; the water supply operation with the high temperature difference of 20 DEG C is achieved; and the highest operation efficiency of the system during a heating period is realized.
Description
Technical field
The present invention relates to a kind of heat pump.Particularly relate to the heat pump and the operation method that are used for radiator heating under a kind of normal temperature water condition.
Background technology
The conventional design supply water temperature of heating radiator is 80-90 ℃.The highest supply water temperature of conventional water resource heat pump generally can only reach 55 ℃, can not satisfy the water temperature demand of radiator heating.The highest supply water temperature of moderate and high temperature heat can reach more than 80 ℃, can provide hot water for radiator heating system, but its for the water temperature claimed range of water source side between 30-40 ℃, and winter, the water source temperature was usually less than 15 ℃, handle water as the Sewage Plant one-level, can not satisfy moderate and high temperature heat operation demand.Based on above reason, under the normal temperature water condition, the thermal source that provides of radiator heating system can not be provided existing water source heat pump technology.
Summary of the invention
Technical problem to be solved by this invention is, provides a kind of can the realization to extract heat pump and the operation method that is used for radiator heating under the normal temperature water condition that heat prepares the high temperature heating hot water from the normal temperature water source.
The technical solution adopted in the present invention is: the heat pump and the operation method that are used for radiator heating under a kind of normal temperature water condition.The heat pump that is used for radiator heating under the normal temperature water condition, comprise: radiator system, also be provided with one-level heat pump and secondary heat pump, wherein, described one-level heat pump, secondary heat pump and radiator system set gradually, and are to be connected with switch valve by connecting pipeline between described one-level heat pump, secondary heat pump and the radiator system.
Described one-level heat pump includes first source pump and second source pump, wherein, the water source water inlet of first source pump is connected water supply end in water source with the water source water inlet of second source pump by water source side water pump, the water source delivery port of first source pump is connected water source backwater end with the water source delivery port of second source pump, the condenser side water inlet of first source pump is connected the radiator heating backwater port of radiator system successively with the 12 switch valve by the 14 switch valve, this water inlet also connects the 3rd source pump vaporizer side water outlet port of secondary heat pump by the 16 switch valve; The first source pump condenser side delivery port connects the condenser side water inlet of second source pump by the 22 switch valve, and delivery port also is connected secondary heat pump the 3rd source pump vaporizer side water inlet by the 13 switch valve with the 15 switch valve.The condenser side water inlet of second source pump also connects secondary heat pump the 4th source pump vaporizer side delivery port by the 23 switch valve, the condenser side delivery port of second source pump is connected the radiator heating water supply port of radiator system successively with heating circulation pump by the 25 switch valve, described delivery port also connects secondary heat pump the 4th source pump vaporizer side water inlet by the 24 switch valve; The condenser delivery port of described first source pump also is connected the condenser water inlet of secondary heat pump the 4th source pump with the 18 switch valve by the 27 switch valve.
The described first source pump condenser side water inlet switches valve by the 21 and connects the second source pump condenser side water inlet, and the described first source pump condenser side delivery port connects the second source pump condenser side water inlet by the 22 switch valve.
Described secondary heat pump includes the 3rd source pump and the 4th source pump, wherein, the vaporizer side water inlet of the 3rd source pump is connected the condenser side delivery port of first source pump in the one-level heat pump with the 13 switch valve by the 15 switch valve, the vaporizer side delivery port of the 3rd source pump connects the first source pump condenser water inlet of one-level heat pump again by middle water circulating pump by the 22 switch valve; The 3rd source pump condenser side water inlet switches valve by the 11 and connects radiator system heating backwater port, and the radiator heating water delivery port of the 3rd source pump is connected the condenser side water inlet of the 4th source pump successively with the 18 switch valve by the 17 switch valve; The 4th source pump vaporizer side water inlet connects the condenser side delivery port of second source pump of one-level heat pump by the 24 switch valve, the 4th source pump vaporizer side delivery port connects the condenser side water inlet of second source pump of one-level heat pump again by middle water circulating pump by the 23 switch valve.On the connecting line between the vaporizer side delivery port of described the 3rd source pump vaporizer side water inlet and the 4th source pump the 19 switch valve (19) is set, on the connecting line between the vaporizer side water inlet of described vaporizer side delivery port and the 4th source pump the 20 switch valve is set.
The condenser side water inlet of described the 4th source pump 4 also is connected the condenser side delivery port of first source pump 1 of one-level heat pump successively with the 27 switch valve by the 18 switch valve.
A kind of being used for is used for the heat pump of radiator heating and the operation method of operation method under the normal temperature water condition, include:
Operation method under the design loading condiction: move one-level heat pump and secondary heat pump simultaneously;
Operation method more than 50% under the design loading condiction a: source pump in operation one-level heat pump and the secondary heat pump;
Operation method under the loading condiction of design below 50%: only move the one-level heat pump.
Describedly start the one-level heat pump simultaneously and the secondary heat pump is, under the design loading condiction, employing with the normal temperature water source under the driving of water source side water pump 5, enter the evaporimeter of first source pump and second source pump of one-level heat pump, prepare middle hot water by first source pump and second source pump, under the driving of middle water circulating pump and middle water circulating pump, enter the evaporimeter of the 3rd source pump and the 4th source pump of secondary heat pump respectively, for normal operation provides heat and temperature guarantee; Come from radiator user's heating circulating backwater, at first enter the condenser of the 3rd source pump, obtain the heat that source pump provides, enter the condenser of the 4th source pump again, further obtain the heat that unit provides; The heating side first in the middle of under the driving of water circulating pump, supply water as heating and to supply with the radiator user, finish the system thermal circulating transfer.
A source pump in described startup one-level heat pump and the secondary heat pump is that the 3rd source pump in the secondary heat pump of stopping using enters the normal temperature source water evaporimeter of first source pump and second source pump of one-level heat pump under water source side water pump drives; The heating backwater of radiator system, at first enter the condenser of first source pump of one-level heat pump, obtain the heat pump for supply heat, enter the condenser of the 4th source pump of secondary heat pump afterwards, obtain the heat that the 4th source pump is supplied with, the radiator user is supplied with in water supply as radiator heating system under heating side water circulating pump drives, and the recirculated water that the heat of the vaporizer side of the 4th source pump is supplied with from water source side water pump 5.
Described starts the one-level heat pump, and the secondary heat pump of all stopping using, normal temperature source water enter the evaporimeter of first source pump and second source pump of one-level heat pump respectively under water source side water pump 5 drives, be extracted the heat temperature and reduce the back discharging; The heating backwater of radiator system, at first enter the condenser of first source pump of one-level heat pump, obtain the heat that this first source pump is supplied with, enter the condenser of second source pump of one-level heat pump afterwards, obtain the heat that this second source pump is supplied with, the radiator user is supplied with in water supply as radiator heating system under heating side water circulating pump drives.
Be used for the heat pump and the operation method of radiator heating under the normal temperature water condition of the present invention, have following beneficial effect:
(1) the usual demand of the hot user of radiator heating for water temperature satisfied in the production of high temperature heating hot water (80 ℃) in the realization under the normal temperature water condition.Adopt conventional solution, under the normal temperature water condition, utilize conventional water resource heat pump can only prepare 40-60 ℃ heating hot water, can't satisfy radiator heat user's water temperature demand.And can prepare the moderate and high temperature heat of water temperature more than 80 ℃, then require the water source water temperature more than 30 ℃.This programme moves heat secondary extractive technique, has realized preparing from normal temperature water source extraction heat the purpose of high temperature heating hot water.
(2) realize big supply backwater temperature difference (20 ℃), satisfy the usual demand of radiator heat user for the recirculated water temperature difference.No matter be conventional water source heat pump units or moderate and high temperature heat unit, the water supply temperature difference is generally about 10 ℃.The art of this patent scheme utilization source pump series operation mode realizes 20 ℃ big temperature difference water supply operations.
(3) full heating operation periodic system efficient height.Under the design load condition,, adopt secondary heat pump heat extraction mode for satisfying the supply water temperature demand.Because the two levels of thermal pumping system moves simultaneously, power consumption is big, and efficiency is low.In a heating cycle, the most of the time, system was in the part load condition operation, and supply water temperature is required to be lower than design conditions.This programme is by the pipeline changing method, under partial load condition, realize that respectively one-level heat pump+secondary heat pump extracts the heat combination, all the one-level heat pump extracts the heat mode, carry out the matter of system's heating demand and regulate (water temperature adjusting), reduce system energy consumption, improve system effectiveness, finally realize heating phase running efficiency of system supreme good.
Description of drawings
Fig. 1 is a system process schematic diagram of the present invention;
Fig. 2 is a design load condition system process schematic diagram;
Fig. 3 is a partial load condition system flow schematic diagram;
Fig. 4 is a partial load condition system flow schematic diagram.
The specific embodiment
Below in conjunction with embodiment and accompanying drawing heat pump and the operation method that is used for radiator heating under the normal temperature water condition of the present invention made a detailed description.
As shown in Figure 1, the heat pump that is used for radiator heating under the normal temperature water condition of the present invention, comprise: radiator system C, also be provided with one-level heat pump A and secondary heat pump B, wherein, described one-level heat pump A, secondary heat pump B and radiator system C set gradually, and are to be connected with switch valve by connecting pipeline 10 between described one-level heat pump A, secondary heat pump B and the radiator system C.
The heat pump and the operation method that are used for radiator heating under the normal temperature water condition of the present invention, one-level heat pump A wherein are responsible for extracting heat from the source water of temperature lower (＜15 ℃), produce 40-60 ℃ hot water; Secondary heat pump B extracts heat from 40-60 ℃ of hot water of one-level heat pump production, produce the hot water of 70-80 ℃ of grade, supplies with radiator system C and uses.
Described one-level heat pump A includes first source pump 1 and second source pump 2, and described secondary heat pump B includes the 3rd source pump 3 and the 4th source pump 4.Wherein, the vaporizer side water inlet 1a of first source pump 1 is connected water supply end in water source with the vaporizer side water inlet 2A of second source pump 2 by water source side water pump 5, and the water source delivery port 1B of first source pump 1 is connected water source backwater end with the water source delivery port 2B of second source pump 2.The condenser side water inlet 1D of first source pump 1 is connected the radiator heating backwater port 28 of radiator system C successively with the 12 switch valve 12 by the 14 switch valve 14, this water inlet 1D also connects the 3rd source pump 3 vaporizer side water outlet port 3B of secondary heat pump B by the 16 switch valve 16; First source pump, 1 condenser side delivery port 1C is by the condenser side water inlet 2D of the 22 switch valve 22 connections second source pump 2, and delivery port 1C also is connected secondary heat pump B the 3rd source pump 3 vaporizer side water inlet 3A by the 13 switch valve 13 with the 15 switch valve 15.The condenser side water inlet 2D of second source pump 2 also connects secondary heat pump B the 4th source pump vaporizer side delivery port 4B by the 23 switch valve 23, the condenser side delivery port 2C of second source pump 2 is connected the radiator heating water supply port 29 of radiator system C successively with heating circulation pump 32 by the 25 switch valve 25, delivery port 2C also can connect secondary heat pump B the 4th source pump vaporizer side water inlet 4A by the 24 switch valve 24.The condenser delivery port 1C of described first source pump 1 also can be connected the condenser water inlet 4D of secondary heat pump the 4th source pump 4 by the 27 switch valve 27 with the 18 switch valve 18.Described first source pump, 1 condenser side water inlet 1D switches valve 21 by the 21 and connects second source pump, 2 condenser side water inlet 2C.Described first source pump, 1 condenser side delivery port 1C connects second source pump, 2 condenser side water inlet 2D by the 22 switch valve 22.
Described secondary heat pump B includes the 3rd source pump 3 and the 4th source pump 4, wherein, the vaporizer side water inlet 3A of the 3rd source pump 3 is connected the condenser side delivery port 1C of first source pump 1 among the one-level heat pump A with the 13 switch valve 13 by the 15 switch valve 15, the vaporizer side delivery port 3B of the 3rd source pump 3 connects first source pump, the 1 condenser water inlet 1D of one-level heat pump A again by middle water circulating pump 6 by the 22 switch valve 16.The 3rd source pump 3 condenser side water inlet 3D are connected the condenser side water inlet 4D of the 4th source pump 4 successively with the 18 switch valve 18 by the 17 switch valve 17 by the 11 radiator heating water delivery port 3C that switches valve 11 connection radiator system C heating backwater ports 28, the three source pump 3.The 4th source pump 4 vaporizer side water inlet 4A connect the condenser side delivery port 2C of second source pump 2 of one-level heat pump A by the 24 switch valve 24, the 4th source pump 4 vaporizer side delivery port 4B connect the condenser side water inlet 2D of second source pump 2 of one-level heat pump A again by middle water circulating pump 7 by the 23 switch valve 23.On the connecting line between the vaporizer side delivery port 4B of described the 3rd source pump 3 vaporizer side water inlet 3A and the 4th source pump 4 the 19 switch valve 19 is set, on the connecting line between the vaporizer side water inlet 4A of described vaporizer side delivery port 3B and the 4th source pump 4 the 20 switch valve 20 is set.The condenser side water inlet 4D of described the 4th source pump 4 also is connected the condenser side delivery port 1C of first source pump 1 of one-level heat pump A successively with the 27 switch valve 27 by the 18 switch valve 18.
Be used for the operation method of the heat pump of radiator heating under the normal temperature water condition of the present invention, include:
Operation method under the design loading condiction: move one-level heat pump (A) and secondary heat pump (B) simultaneously;
Operation method more than 50% under the design loading condiction a: source pump in operation one-level heat pump (A) and the secondary heat pump (B);
Operation method under the loading condiction of design below 50%: only move one-level heat pump (A).Specific as follows described.
Under the design loading condiction, as shown in Figure 2,10-15 ℃ normal temperature water source is under the driving of water source side water pump 5, enter conventional water source heat pump units respectively, promptly the evaporimeter of first source pump 1 and second source pump 2 is extracted heat, discharges after temperature reduces by 5 ℃.First source pump 1 and second source pump 2 are prepared 30-40 ℃ of hot water, under the driving of middle water circulating pump 6 and middle water circulating pump 7, enter middle heat pump of high-temp water source respectively, promptly the evaporimeter of the 3rd source pump 3 and the 4th source pump 4 provides heat and temperature guarantee for it normally moves.The temperature that comes from radiator user 8 is a 55-65 ℃ of heating circulating backwater, at first enter the condenser of the 3rd source pump 3, obtain the heat that source pump provides, temperature is increased to 65-75 ℃, enter the condenser of the 4th source pump 4 again, further obtain the heat that unit provides, temperature is increased to 75-85 ℃.At heating side water circulating pump is under the driving of the first middle water circulating pump 32, supplies water as heating and supplies with radiator user 8, finishes the system thermal circulating transfer.By above process, under the normal temperature water condition, utilize the secondary heat extraction of conventional water source heat pump units (first source pump 1 and second source pump 2) and moderate and high temperature heat unit (the 3rd source pump 3 and the 4th source pump 4), satisfy the water temperature of conventional radiator system C high temperature water supply and the demand of big supply backwater temperature difference.
Under partial load condition, radiator system supply water temperature demand reduces, and the present invention can realize regulating (supply water temperature adjusting) by the switching of pipeline.
As shown in Figure 3, under sub-load (bigger load) operating mode, promptly design the operation method under the loading condiction more than 50%, the 3rd source pump 3 is stopped using.The normal temperature source water enters the evaporimeter that conventional water source heat pump units is first source pump 1 and second source pump 2 respectively under water source side water pump 5 drives, be extracted the heat temperature and reduce the back discharging.Radiator system C temperature is a 40-50 ℃ of heating backwater, at first enters the condenser of conventional water source heat pump units (first source pump 1), obtains the heat pump for supply heat, and temperature rises to 50-60 ℃.Enter the condenser of moderate and high temperature heat unit (the 4th source pump 4) afterwards, obtain the heat of this heat pump for supply, temperature rises to 60-70 ℃, and radiator user 8 is supplied with in water supply as radiator heating system under heating side water circulating pump 32 drives.And the 30-40 ℃ of recirculated water that the heat of the vaporizer side of moderate and high temperature heat unit (the 4th source pump 4) is supplied with from conventional water resource heat pump.
As shown in Figure 4, under sub-load (less load) operating mode, promptly design the operation method under the loading condiction below 50%, moderate and high temperature heat (the 3rd source pump 3 and the 4th source pump 4) is all stopped using.The normal temperature source water enters the evaporimeter of conventional water source heat pump units (first source pump 1 and second source pump 2) respectively under water source side water pump 5 drives, be extracted the heat temperature and reduce the back discharging.The temperature of radiator system C is a 30-40 ℃ of heating backwater, at first enters the condenser of conventional water source heat pump units (first source pump 1), obtains this heat pump for supply heat, and temperature rises to 40-50 ℃.Enter the condenser of conventional water source heat pump units (second source pump 2) afterwards, obtain this heat pump for supply heat, temperature rises to 50-60 ℃, and radiator user 8 is supplied with in water supply as radiator system C under heating side water circulating pump drives.
Provide a preferred forms below:
Under the design loading condiction, 12 ℃ normal temperature water source enters the evaporimeter of conventional water source heat pump units (first source pump 1 and second source pump 2) respectively under water source side water pump 5 drives, be extracted heat, after temperature reduces by 5 ℃, with 7 ℃ of discharges.Conventional water source heat pump units (first source pump 1 and second source pump 2) is prepared 40 ℃ of hot water, under middle water circulating pump (water circulating pump 6 and the 3rd middle water circulating pump 7 in the middle of second) drives, enter the evaporimeter of middle heat pump of high-temp water source (the 3rd source pump 3 and the 4th source pump 4) respectively, for after its normal operation provides heat and temperature to ensure, temperature is reduced to 30 ℃, circulation enters the condenser of conventional water source heat pump units (first source pump 1 and second source pump 2), finishes a middle circulation.The temperature that comes from radiator user 8 is 60 ℃ of heating circulating backwaters, at first enter the condenser of moderate and high temperature heat unit (the 3rd source pump 3), obtain the heat that source pump provides, temperature is increased to 70 ℃, enter the condenser of moderate and high temperature heat unit (the 4th source pump 4) again, further obtain the heat that unit provides, temperature is increased to 80 ℃.Under the driving of heating side water circulating pump (water circulating pump 32 in the middle of first), supply with radiator user 8 as heating water supply, finish the system thermal non-interruptible supply.In above process, realization utilizes 12 ℃ of normal temperature water sources, by the secondary heat extraction of conventional water source heat pump units (first source pump 1 and second source pump 2) and moderate and high temperature heat unit (the 3rd source pump 3 and the 4th source pump 4), satisfy the recirculated water temperature difference demand of 20 ℃ of water temperature that 80 ℃ of high temperature of conventional radiator system supply water and supply backwater temperature differences.The total heating efficiency COP of system (comprising pump energy consumption) is about about 2.1.
Under partial load condition, radiator system supply water temperature demand reduces, and regulates (supply water temperature adjusting) by the switching realization matter of pipeline.
Under sub-load (about the 75%) operating mode, as shown in Figure 3, moderate and high temperature heat unit (the 3rd source pump 3) is stopped using.12 ℃ of normal temperature source waters enter the evaporimeter of conventional water source heat pump units (first source pump 1 and second source pump 2) respectively under water source side water pump 5 drives, after being extracted the heat temperature and reducing by 5 ℃, with 7 ℃ of dischargings.The temperature of radiator system C is 45 ℃ of heating backwater, at first enters the condenser of conventional water source heat pump units (first source pump 1), obtains the heat pump for supply heat, and temperature rises to 55 ℃.Enter the condenser of moderate and high temperature heat unit (the 4th source pump 4) afterwards, obtain the heat of this heat pump for supply, temperature rises to 65 ℃, and radiator user 8 is supplied with in water supply as radiator heating system under heating side water circulating pump drives.And 40/30 ℃ of recirculated water that the heat of the vaporizer side of moderate and high temperature heat unit (the 4th source pump 4) is supplied with from conventional water resource heat pump.Under this method of operation, the total heating efficiency COP of system (comprising pump energy consumption) is about about 3.0.
Under sub-load (about the 50%) operating mode, as shown in Figure 4, moderate and high temperature heat (the 3rd source pump 3 and the 4th source pump 4) is all stopped using.The normal temperature source water enters the evaporimeter of conventional water source heat pump units (first source pump 1 and second source pump 2) respectively under water source side water pump 5 drives, be extracted and discharge after the heat temperature reduces by 5 ℃.Radiator system C temperature is 35 ℃ of heating backwater, at first enters the condenser of conventional water source heat pump units (first source pump 1), obtains this heat pump for supply heat, and temperature rises to 45 ℃.Enter the condenser of conventional water source heat pump units (second source pump 2) afterwards, obtain this heat pump for supply heat, temperature rises to 55 ℃, and radiator user 8 is supplied with in water supply as radiator system C under heating side water circulating pump (water circulating pump 32 in the middle of first) drives.Under this method of operation, the total heating efficiency COP of system (comprising pump energy consumption) is about about 3.2-3.5.
Be used for the heat pump of radiator heating and the heating phase heating efficiency of operation method under the normal temperature water condition of the present invention of whole heating phase and be about 3.08.
Claims (9)
1. the heat pump that is used for radiator heating under the normal temperature water condition, comprise: radiator system (C), it is characterized in that, also be provided with one-level heat pump (A) and secondary heat pump (B), wherein, described one-level heat pump (A), secondary heat pump (B) and radiator system (C) set gradually, and are to be connected with switch valve by connecting pipeline (10) between described one-level heat pump (A), secondary heat pump (B) and the radiator system (C).
2. the heat pump that is used for radiator heating under the normal temperature water condition according to claim 1, it is characterized in that, described one-level heat pump (A) includes first source pump (1) and second source pump (2), wherein, the water source water inlet (1A) of first source pump (1) is connected water supply end in water source with the water source water inlet (2A) of second source pump (2) by water source side water pump (5), the water source delivery port (1B) of first source pump (1) is connected water source backwater end with the water source delivery port (2B) of second source pump (2), the condenser side water inlet (1D) of first source pump (1) is connected the radiator heating backwater port (28) of radiator system (C) successively with the 12 switch valve (12) by the 14 switch valve (14), this water inlet (1D) also connects the 3rd source pump (3) the vaporizer side water outlet port (3B) of secondary heat pump (B) by the 16 switch valve (16); First source pump (1) condenser side delivery port (1C) is by the condenser side water inlet (2D) of the 22 switch valve (22) connection second source pump (2), and delivery port (1C) also is connected secondary heat pump (B) the 3rd source pump (3) vaporizer side water inlet (3A) by the 13 switch valve (13) with the 15 switch valve (15).The condenser side water inlet (2D) of second source pump (2) also connects secondary heat pump (B) the 4th source pump vaporizer side delivery port (4B) by the 23 switch valve (23), the condenser side delivery port (2C) of second source pump (2) is connected the radiator heating water supply port (29) of radiator system (C) successively with heating circulation pump (32) by the 25 switch valve (25), described delivery port (2C) also connects secondary heat pump (B) the 4th source pump vaporizer side water inlet (4A) by the 24 switch valve (24); The condenser delivery port (1C) of described first source pump (1) also is connected the condenser water inlet (4D) of secondary heat pump the 4th source pump (4) with the 18 switch valve (18) by the 27 switch valve (27).
3. the heat pump that is used for radiator heating under the normal temperature water condition according to claim 2, it is characterized in that, described first source pump (1) condenser side water inlet (1D) switches valve (21) by the 21 and connects second source pump (2) condenser side water inlet (2C), and described first source pump (1) condenser side delivery port (1C) connects second source pump (2) condenser side water inlet (2D) by the 22 switch valve (22).
4. the heat pump that is used for radiator heating under the normal temperature water condition according to claim 1, it is characterized in that, described secondary heat pump (B) includes the 3rd source pump (3) and the 4th source pump (4), wherein, the vaporizer side water inlet (3A) of the 3rd source pump (3) is connected the condenser side delivery port (1C) of first source pump (1) in the one-level heat pump (A) with the 13 switch valve (13) by the 15 switch valve (15), the vaporizer side delivery port (3B) of the 3rd source pump (3) connects first source pump (1) the condenser water inlet (1D) of one-level heat pump (A) again by middle water circulating pump (6) by the 22 switch valve (16); The 3rd source pump (3) condenser side water inlet (3D) switches valve (11) by the 11 and connects radiator system (C) heating backwater port (28), and the radiator heating water delivery port (3C) of the 3rd source pump (3) is connected the condenser side water inlet (4D) of the 4th source pump (4) successively with the 18 switch valve (18) by the 17 switch valve (17); The 4th source pump (4) vaporizer side water inlet (4A) connects the condenser side delivery port (2C) of second source pump (2) of one-level heat pump (A) by the 24 switch valve (24), the 4th source pump (4) vaporizer side delivery port (4B) connects the condenser side water inlet (2D) of second source pump (2) of one-level heat pump (A) again by middle water circulating pump (7) by the 23 switch valve (23).On the connecting line between the vaporizer side delivery port (4B) of described the 3rd source pump (3) vaporizer side water inlet (3A) and the 4th source pump (4) the 19 switch valve (19) is set, on the connecting line between the vaporizer side water inlet (4A) of described vaporizer side delivery port (3B) and the 4th source pump (4) the 20 switch valve (20) is set.
5. the heat pump that is used for radiator heating under the normal temperature water condition according to claim 4, it is characterized in that the condenser side water inlet (4D) of described the 4th source pump 4 also is connected the condenser side delivery port (1C) of first source pump 1 of one-level heat pump (A) successively with the 27 switch valve (27) by the 18 switch valve (18).
6. an operation method that is used for being used under the described normal temperature water condition of claim 1 heat pump of radiator heating is characterized in that, includes:
Operation method under the design loading condiction: move one-level heat pump (A) and secondary heat pump (B) simultaneously;
Operation method more than 50% under the design loading condiction a: source pump in operation one-level heat pump (A) and the secondary heat pump (B);
Operation method under the loading condiction of design below 50%: only move one-level heat pump (A).
7. the startup method that is used for the heat pump of radiator heating under the normal temperature water condition according to claim 6, it is characterized in that, describedly start one-level heat pump (A) simultaneously and secondary heat pump (B) is, under the design loading condiction, employing with the normal temperature water source under the driving of water source side water pump (5), enter the evaporimeter of first source pump (1) and second source pump (2) of one-level heat pump (A), prepare middle hot water by first source pump (1) and second source pump (2), under the driving of middle water circulating pump (6) and middle water circulating pump (7), enter the evaporimeter of the 3rd source pump (3) and the 4th source pump (4) of secondary heat pump (B) respectively, for normal operation provides heat and temperature guarantee; The heating circulating backwater that comes from radiator user (8) at first enters the condenser of the 3rd source pump (3), obtains the heat that source pump provides, and enters the condenser of the 4th source pump (4) again, further obtains the heat that unit provides; The heating side first in the middle of under the driving of water circulating pump (32), supply water to supply with radiator user (8) as heating, finish the system thermal circulating transfer.
8. the startup method that is used for the heat pump of radiator heating under the normal temperature water condition according to claim 6, it is characterized in that, a source pump in described startup one-level heat pump (A) and the secondary heat pump (B) is, the 3rd source pump (3) in the inactive secondary heat pump (B) enters the normal temperature source water evaporimeter of first source pump (1) and second source pump (2) of one-level heat pump (A) under water source side water pump 5 drives; The heating backwater of radiator system (C), at first enter the condenser of first source pump (1) of one-level heat pump (A), obtain the heat pump for supply heat, enter the condenser of the 4th source pump (4) of secondary heat pump (B) afterwards, obtain the heat that the 4th source pump (4) is supplied with, radiator user (8) is supplied with in water supply as radiator heating system under heating side water circulating pump (32) drives, and the recirculated water that the heat of the vaporizer side of the 4th source pump (4) is supplied with from water source side water pump 5.
9. the startup method that is used for the heat pump of radiator heating under the normal temperature water condition according to claim 6, it is characterized in that, described starts one-level heat pump (A), all inactive secondary heat pump (B), the normal temperature source water enters the evaporimeter of first source pump (1) and second source pump (2) of one-level heat pump (A) respectively under water source side water pump 5 drives, be extracted the heat temperature and reduce the back discharging; The heating backwater of radiator system (C), at first enter the condenser of first source pump (1) of one-level heat pump (A), obtain the heat that this first source pump (1) is supplied with, enter the condenser of second source pump (2) of one-level heat pump (A) afterwards, obtain the heat that this second source pump (2) is supplied with, radiator user (8) is supplied with in water supply as radiator heating system under heating side water circulating pump (32) drives.
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| CN 201110158251 CN102261693B (en) | 2011-06-14 | 2011-06-14 | Heat pump system for heating radiator under normal-temperature water source condition and operation method |
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| CN 201110158251 CN102261693B (en) | 2011-06-14 | 2011-06-14 | Heat pump system for heating radiator under normal-temperature water source condition and operation method |
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| CN102261693A true CN102261693A (en) | 2011-11-30 |
| CN102261693B CN102261693B (en) | 2013-08-07 |
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| CN102679546A (en) * | 2012-05-24 | 2012-09-19 | 广州市设计院 | Efficient high-temperature hot-water heat pump unit |
| CN104749215A (en) * | 2015-04-10 | 2015-07-01 | 广州天河兰石技术开发有限公司 | Temperature adjusting device and thermal performance detection system for heating heat radiator |
| CN105157087A (en) * | 2015-10-14 | 2015-12-16 | 珠海格力电器股份有限公司 | Control method and device of heat pump unit |
| CN108562108A (en) * | 2018-04-23 | 2018-09-21 | 杭州能工科技有限公司 | A kind of temperature and humidity control device and control method for medical warehouse |
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