CN102207334A - Intelligent heat source switching heat pump water heater and control method thereof - Google Patents

Intelligent heat source switching heat pump water heater and control method thereof Download PDF

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Publication number
CN102207334A
CN102207334A CN2011101985492A CN201110198549A CN102207334A CN 102207334 A CN102207334 A CN 102207334A CN 2011101985492 A CN2011101985492 A CN 2011101985492A CN 201110198549 A CN201110198549 A CN 201110198549A CN 102207334 A CN102207334 A CN 102207334A
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Prior art keywords
heat exchanger
water
source
temperature
magnetic valve
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CN2011101985492A
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Chinese (zh)
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王天舒
丁亮
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Jiangsu Tianshu Electric Appliance Co Ltd
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Jiangsu Tianshu Electric Appliance Co Ltd
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Priority to CN2011101985492A priority Critical patent/CN102207334A/en
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Abstract

The invention relates to an intelligent heat source switching heat pump water heater and a control method thereof. The intelligent heat source switching heat pump water heater comprises a compressor, a hot water heat exchanger, a throttling valve, an air heat exchanger and a check valve, and also comprises a water/ground source heat exchanger, a first solenoid valve and a second solenoid valve, wherein a gas outlet pipeline of the compressor is connected to the hot water heat exchanger, the outlet of a working medium pipeline of the hot water heat exchanger is connected with the first solenoid valve and the second solenoid valve in parallel through the throttling valve, the first solenoid valve is connected with the air heat exchanger, the second solenoid valve is connected with the water/ground source heat exchanger, and the air heat exchanger and the water/ground source heat exchanger are respectively connected with a gas return port of the compressor in parallel through the check valve. When the environment temperature is lower, the heat pump water heater runs automatically in a ground source water mode, and does not need frequent defrosting compared with an air source heat pump; when the environment temperature is higher, the heat pump water heater runs in an air source mode; and through flexible switching of the heat sources, the heat pump can be in a high-energy-efficiency state for the whole year and realizes energy saving indeed.

Description

Teat pump boiler and control method thereof that the intelligence thermal source switches
Technical field
The present invention relates to a kind of fluid heater that is used to utilize heat pump, relate in particular to Teat pump boiler and control method thereof that a kind of intelligent thermal source switches.
Background technology
Air source hot pump water heater have environmental protection, energy-conservation and system is simple, initial cost is low, easy to maintenance, regulate characteristics such as flexible, therefore obtained large-area applying.Chinese invention patent application " a kind of ultra-low temperature air source heat pump water heater " (Chinese patent application 201010528073.X, publication number CN101957060) a kind of ultra-low temperature air source heat pump water heater is disclosed, comprise the compressor and wind side heat exchanger and the hot water side heat exchanger that connect by pipeline, the middle part of described compressor is provided with cavity, one side of compressor is provided with gas supplementing opening, and this Teat pump boiler also comprises tonifying Qi loop, refrigerating circuit and auxiliary air compensating loop.Chinese invention patent application " the accurate secondary compression ultra-low temperature air source heat pump water heater of band economizer " (Chinese patent application 201010529983.X, publication number CN101957061) discloses a kind of ultra-low temperature air source heat pump water heater that is mainly increased the band economizer that enthalpy compressor, air-cooled evaporimeter, water-side heat, gas-liquid separator, economizer, cross valve, electric expansion valve, device for drying and filtering, reservoir, magnetic valve, heating power expansion valve and check valve constitute by tonifying Qi.Though the ultra-low temperature air source heat pump water heater can be in the working environment of ultralow temperature operate as normal,, in the winter of the very low north cold area of environment temperature, air source hot pump water heater needs frequent defrost, causes heating efficiency to reduce greatly.
Summary of the invention
The objective of the invention is to provide a kind of Teat pump boiler of intelligent thermal source switching, solve single heat source heat pump water heater in the inefficient technical problem of cold district winter operation.
The present invention solves the problems of the technologies described above the technical scheme that is adopted:
The Teat pump boiler that a kind of intelligent thermal source switches comprises compressor, hot water heat exchanger, choke valve, air heat exchanger and check-valves, and it is characterized in that: described Teat pump boiler also comprises water ground source heat exchanger, first magnetic valve and second magnetic valve; The gas outlet pipeline of compressor is connected to hot water heat exchanger, the working medium tube way outlet of hot water heat exchanger is by choke valve be connected in parallel first magnetic valve and second magnetic valve, first magnetic valve connects air heat exchanger, second magnetic valve connects water ground source heat exchanger, and air heat exchanger and water ground source heat exchanger are more respectively by the check-valves compressor return air mouth that is connected in parallel.
Another object of the present invention is that a kind of method that is used for the realization intelligence thermal source switching controls of Teat pump boiler will be provided, and solves the programme-control that uses a computer and realizes that two this water heater of thermal source heat thermals source switch the technical problem of Based Intelligent Control.
The present invention solves the problems of the technologies described above the technical scheme that is adopted:
A kind of method that is used for the realization intelligence thermal source switching controls of above-mentioned Teat pump boiler comprises following steps:
S01) step of detection domestic hot-water temperature T w;
S02) if domestic hot-water's temperature T w<default water temperature then forward step S03 to, otherwise water heater is shut down;
S03) step of environment temperature Th of Jian Ceing and water source temperature T d;
S04) step of comparison environment temperature Th and water source temperature T d is if Th-Te 〉=forward temperature difference then forwards step S05 to, otherwise forwards step S06 to;
S05) control the step that Teat pump boiler enters the air source module, first magnetic valve is opened, second closed electromagnetic valve;
S06) step of comparison environment temperature Th and water source temperature T d is if Th-Te<repercussion temperature difference then forwards step S07 to, otherwise forwards step S03 to;
S07) the control Teat pump boiler enters the step of water source pattern, first closed electromagnetic valve, and second magnetic valve is opened.
The invention has the beneficial effects as follows:
Teat pump boiler and control method thereof that intelligent thermal source of the present invention switches, the air source and the water source operational mode that have realized Teat pump boiler automatically switch, need not the frequent defrost when environment temperature is low of picture air source heat pump, when environment temperature is low, enter the water source mode operation automatically, guarantee that its Energy Efficiency Ratio still can reach more than 3.0; Therefore change the air source module when environment temperature is higher over to, this moment, efficiency was higher than water ground source module again, and by the flexible switching between the thermal source, feasible heat pump efficiency throughout the year all is in the high energy efficiency state, accomplished truly energy-conservation.
Description of drawings
Fig. 1 is the structural representation of the Teat pump boiler of intelligent thermal source switching of the present invention,
Fig. 2 is the control method flow chart of the Teat pump boiler of intelligent thermal source switching of the present invention.
The label of each parts among the above figure: 1-compressor, 2-hot water heat exchanger, 3-choke valve, 4-first magnetic valve, the 5-second magnetic valve 6-water ground source heat exchanger 7-air heat exchanger 8-check-valves.
The specific embodiment
In order to understand technique scheme of the present invention better, describe in detail further below in conjunction with drawings and Examples.
The Teat pump boiler that intelligent thermal source of the present invention switches comprises compressor 1, hot water heat exchanger 2, choke valve 3, air heat exchanger 7 and check-valves 8, also comprises water ground source heat exchanger 6, first magnetic valve 4 and second magnetic valve 5.The gas outlet pipeline of compressor 1 is connected to hot water heat exchanger 2, the working medium tube way outlet of hot water heat exchanger 2 is by choke valve 3 be connected in parallel first magnetic valve 4 and second magnetic valve 5, first magnetic valve 4 connects air heat exchanger 7, second magnetic valve 5 connects water ground source heat exchangers 6, and air heat exchanger 7 and water ground source heat exchanger 6 are more respectively by the be connected in parallel return-air mouth of compressor 1 of check-valves 8.
The Teat pump boiler that intelligent thermal source of the present invention switches has two kinds of operational modes:
1) air source formula pattern:
Second magnetic valve 5 cuts out under this pattern, and first magnetic valve 4 is opened.
Working medium flows to: the compressor 1-hot water heat exchanger 2-choke valve 3-first magnetic valve 4-air-side heat exchanger 7-compressor 1
2) water ground source module
First magnetic valve 4 cuts out under this pattern, and second magnetic valve 5 is opened.
Working medium flows to: the compressor 1-hot water heat exchanger 2-choke valve 3-second magnetic valve 5-water ground source heat exchanger 8-compressor 1
Fig. 2 is the flow chart of the method for the realization intelligence thermal source switching controls that is used for above-mentioned Teat pump boiler of the present invention, the flow chart of present embodiment has only comprised the method that realizes intelligent thermal source switching controls, does not comprise the required well-known routines steps of process such as microsystem computer software and hardware power-up initializing that those skilled in the art are familiar with.Environment temperature Th, the water source temperature T d that following step is related and domestic hot-water's temperature T w can also can take from the master control system of Teat pump boiler by independently temperature-sensing element detection acquisition.
Realization dynamic flow control method provided by the invention comprise following steps:
S01) step of detection domestic hot-water temperature T w.
S02) if domestic hot-water's temperature T w<default water temperature then forward step S03 to, otherwise water heater is shut down.
Default water temperature generally can be made as 40~60 ℃ for default domestic hot-water's heating-up temperature, and in the present embodiment, default water temperature is 50 ℃.
S03) step of environment temperature Th of Jian Ceing and water source temperature T d.
S04) step of comparison environment temperature Th and water source temperature T d is if Th-Te 〉=forward temperature difference then forwards step S05 to, otherwise forwards step S06 to.
The thermal source temperature difference that execution intelligence when the forward temperature difference is the environment temperature rising is switched generally can be made as 1~10 ℃, in the present embodiment, the forward temperature difference is preset as 3 ℃, that is to say that as environment temperature Th during than high 3 ℃ of water source temperature T d, Teat pump boiler automatically switches to the air source module.
S05) control the step that Teat pump boiler enters the air source module, first magnetic valve is opened, second closed electromagnetic valve.
S06) step of comparison environment temperature Th and water source temperature T d is if Th-Te<reverse temperature difference then forwards step S07 to, otherwise forwards step S03 to.
The thermal source temperature difference that execution intelligence when oppositely the temperature difference is the environment temperature reduction is switched generally can be made as-1~-10 ℃, in the present embodiment, oppositely the temperature difference is preset as-3 ℃, that is to say that as environment temperature Th during than low 3 ℃ of water source temperature T d, Teat pump boiler automatically switches to the water source pattern.
S07) the control Teat pump boiler enters the step of water source pattern, first closed electromagnetic valve, and second magnetic valve is opened.
Those of ordinary skill in the art will be appreciated that; above embodiment is used for illustrating technical scheme of the present invention; and be not to be used as limitation of the invention; any based on connotation of the present invention to variation, modification that the above embodiment did, all will drop in the protection domain of claim of the present invention.

Claims (2)

1. the Teat pump boiler that intelligent thermal source switches comprises compressor, hot water heat exchanger, choke valve, air heat exchanger and check-valves, and it is characterized in that: described Teat pump boiler also comprises water ground source heat exchanger, first magnetic valve and second magnetic valve; The gas outlet pipeline of compressor is connected to hot water heat exchanger, the working medium tube way outlet of hot water heat exchanger is by choke valve be connected in parallel first magnetic valve and second magnetic valve, first magnetic valve connects air heat exchanger, second magnetic valve connects water ground source heat exchanger, and air heat exchanger and water ground source heat exchanger are more respectively by the check-valves compressor return air mouth that is connected in parallel.
2. the method for a realization intelligence thermal source switching controls that is used for the described Teat pump boiler of claim 1 comprises following steps:
S01) step of detection domestic hot-water temperature T w;
S02) if domestic hot-water's temperature T w<default water temperature then forward step S03 to, otherwise water heater is shut down;
S03) step of environment temperature Th of Jian Ceing and water source temperature T d;
S04) step of comparison environment temperature Th and water source temperature T d is if Th-Te 〉=forward temperature difference then forwards step S05 to, otherwise forwards step S06 to;
S05) control the step that Teat pump boiler enters the air source module, first magnetic valve is opened, second closed electromagnetic valve;
S06) step of comparison environment temperature Th and water source temperature T d is if Th-Te<reverse temperature difference then forwards step S07 to, otherwise forwards step S03 to;
S07) the control Teat pump boiler enters the step of water source pattern, first closed electromagnetic valve, and second magnetic valve is opened.
CN2011101985492A 2011-07-15 2011-07-15 Intelligent heat source switching heat pump water heater and control method thereof Pending CN102207334A (en)

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Application Number Priority Date Filing Date Title
CN2011101985492A CN102207334A (en) 2011-07-15 2011-07-15 Intelligent heat source switching heat pump water heater and control method thereof

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108426370A (en) * 2018-06-21 2018-08-21 江苏天合能源管理有限公司 A kind of Waste Heat Recovery type domestic air energy Teat pump boiler and heating, Defrost method
CN109163367A (en) * 2018-09-06 2019-01-08 大连民族大学 A kind of air-source with second vapor injection-water source combined heat-pump heat supply method
CN109163476A (en) * 2018-09-06 2019-01-08 大连民族大学 Air-source with second vapor injection-water source combined heat-pump heat supply method
CN109612098A (en) * 2018-12-21 2019-04-12 广东志高暖通设备股份有限公司 It is a kind of can dynamic regulation water temperature hydraulic module system and control method

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN201090956Y (en) * 2007-10-23 2008-07-23 佛山市确正冷热设备有限公司 Heat pump hot water unit assembly capable of using air source and water source as heat source
CN101338942A (en) * 2008-08-07 2009-01-07 广东美的电器股份有限公司 Solar energy composite heat pump water heater
CN101476774A (en) * 2008-11-18 2009-07-08 浙江正理电子电气有限公司 Double-heat source heat pump water heater with air source and water source
CN101936600A (en) * 2010-09-15 2011-01-05 江苏天舒电器有限公司 Self-regulating steady-state low-temperature heat-pump water heater and operating method thereof

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN201090956Y (en) * 2007-10-23 2008-07-23 佛山市确正冷热设备有限公司 Heat pump hot water unit assembly capable of using air source and water source as heat source
CN101338942A (en) * 2008-08-07 2009-01-07 广东美的电器股份有限公司 Solar energy composite heat pump water heater
CN101476774A (en) * 2008-11-18 2009-07-08 浙江正理电子电气有限公司 Double-heat source heat pump water heater with air source and water source
CN101936600A (en) * 2010-09-15 2011-01-05 江苏天舒电器有限公司 Self-regulating steady-state low-temperature heat-pump water heater and operating method thereof

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108426370A (en) * 2018-06-21 2018-08-21 江苏天合能源管理有限公司 A kind of Waste Heat Recovery type domestic air energy Teat pump boiler and heating, Defrost method
CN109163367A (en) * 2018-09-06 2019-01-08 大连民族大学 A kind of air-source with second vapor injection-water source combined heat-pump heat supply method
CN109163476A (en) * 2018-09-06 2019-01-08 大连民族大学 Air-source with second vapor injection-water source combined heat-pump heat supply method
CN109612098A (en) * 2018-12-21 2019-04-12 广东志高暖通设备股份有限公司 It is a kind of can dynamic regulation water temperature hydraulic module system and control method
CN109612098B (en) * 2018-12-21 2020-10-27 广东志高暖通设备股份有限公司 Hydraulic module system capable of dynamically adjusting water temperature and control method

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Application publication date: 20111005