CN100516676C - Accumulative type engine driving type air-conditioning apparatus and control method thereof - Google Patents
Accumulative type engine driving type air-conditioning apparatus and control method thereof Download PDFInfo
- Publication number
- CN100516676C CN100516676C CNB2007100317007A CN200710031700A CN100516676C CN 100516676 C CN100516676 C CN 100516676C CN B2007100317007 A CNB2007100317007 A CN B2007100317007A CN 200710031700 A CN200710031700 A CN 200710031700A CN 100516676 C CN100516676 C CN 100516676C
- Authority
- CN
- China
- Prior art keywords
- energy storage
- storage equipment
- gas engine
- described gas
- rotating speed
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Images
Landscapes
- Air Conditioning Control Device (AREA)
Abstract
The invention provides an energy storage type engine-driven type air conditioning device and a method for controlling the same. The air conditioning device of the invention is characterized in that: an energy storage device loop, which controls the connection or the breaking with the circulation loop by an electromagnetic valve, is arranged between an outdoor heat exchanger and an indoor heat exchanger of a circulation loop of the prior air conditioning device. The key points of the control method of the invention are that based on the indoor load, the energy storage device can store the excessive quantity of cold or release the stored quantity of heat, which makes the motor operate between Va (the economical minimum rotating speed) and Vb (the economical maximum rotating speed) to a maximum extent. Compared with prior art, the invention can greatly enhance the utilization efficiency of the air conditioning device and save energy sources.
Description
Technical field
The present invention relates to air-conditioning technical field, relate in particular to a kind of control method of accumulative type engine driving type air-conditioning apparatus.
Technical background
As the power source that is located at the compressor in the refrigerant loop on the air-conditioning, developed at present and utilized gas engine to replace motor.Utilize the aircondition of this gas engine to be commonly referred to as gas heat pump type air conditioner (GHP), the aircondition that utilizes heat pump to carry out operation of air conditioner comprises the refrigerant loop of parts such as indoor heat converter, compressor, outdoor heat converter, throttle mechanism.Carry out air cooling and air heat is in the cold-producing medium cyclic process to indoor, utilize indoor heat converter carrying out the heat exchange realization between room air and the outdoor air.
The aircondition that utilizes heat pump to carry out operation of air conditioner can utilize less expensive town gas to act as a fuel, so compare with the aircondition of being made up of the compressor that utilizes motor (EHP), operating cost reduces, and can reduce the demand to electric power.
Engine-driven type air conditioning device (abbreviation gas-fired heat pump) is used widely at present in progressively commercialization of the eighties.In its technology two stages of experience, the phase I is the energy mode that the direct fired absorption refrigeration machine is made in combustion gas, and second stage is by combustion gas heat source way as Absorption Refrigerator after obtaining steam or hot water after the boiler combustion.Develop into now and utilize combustion gas to be that the driven by energy gas engine drives compression refrigerating machine, the gas-fired heat pump of Here it is today.Because the main energy sources of gas-fired heat pump is natural gas or liquefied petroleum gas, so it is promoted the use of for the demand that reduces electric power positive effect is arranged.
The structure of common non-accumulative type engine driving type air-conditioning apparatus as shown in Figure 1 in the prior art, engine 1 connects compressor 2 by transmission device, the suction inlet of compressor has been installed low pressure sensor 11, the exhaust outlet of compressor has been installed high pressure sensor 12, compressor 2 outlets are connected with cross valve 3, and constitute closed circuit with outdoor heat exchanger 4, expansion valve a5, expansion valve b9, indoor heat exchanger 10 successively again by cross valve 3.
As figure, shown in 3, gas-fired heat pump is during by motor driven, and the efficient of engine directly influences the efficient of complete machine, yet the efficient of engine and engine speed are closely related, and normally efficient is higher during middling speed, and efficient is relatively poor when low speed or high speed.
The structure of common non-accumulative type engine driving type air-conditioning apparatus from prior art, it can't effectively control its engine efficiency.
Summary of the invention
The object of the present invention is to provide the control method of the aircondition that a kind of gas-fired heat pump combines with energy accumulating technique.
To achieve these goals, the present invention has taked following technical scheme:
Accumulative type engine driving type air-conditioning apparatus of the present invention comprises compressor, compressor is driven by transmission device by gas engine, compressor and outdoor heat exchanger, indoor heat exchanger, expansion valve and the connecting pipe between them constitute closed circuit according to prior art, also comprise the temperature and pressure checkout gear on closed circuit.Characteristics of the present invention are: inserting the energy storage equipment loop on the aforementioned closed circuit between outdoor heat exchanger, the indoor heat exchanger, the energy storage equipment loop is controlled and being communicated with or disconnection of aforementioned closed circuit by magnetic valve.
Described energy storage equipment constitutes housing by heat-insulation layer, is filled with accumulation of energy liquid in the housing, and the coil pipe sealing places accumulation of energy liquid, and coil pipe communicates with the aforementioned closed circuit of energy storage equipment outside with inlet by outlet.
The technical scheme of control method of the present invention is as follows:
Gas-fired heat pump changes requirement in order to adapt to air conditioning chamber's internal loading; usually require engine in wide as far as possible range of speeds running; for example set the bound of running; be higher than upper limit running entail dangers to engine life; be lower than the lower limit running and can cause unstability to be shut down suddenly, these two speed are decided to be Vmin and Vmax.One section Va (economic minimum speed)-Vb (economic maximum speed) scope is arranged between Vmin and Vmax usually, higher in Va-Vb scope intrinsic motivation operational efficiency, satisfy Vmin＜Va＜Vb＜Vmax relation.
Making engine to greatest extent is the main points and the control target of control method of the present invention in the running of Va-Vb scope.
During cooling operation, adopt evaporating pressure to characterize indoor load, evaporating pressure is low to show that indoor load is low, and the evaporating pressure height shows the indoor load height.
Along with evaporating pressure reduces, require engine speed V also to reduce, engine fan-out capability and indoor load are complementary, when V=Va, engine speed no longer reduces, and opens the energy storage equipment bypass, make the part cold-producing medium flow to the energy storage equipment evaporation, cold is left in the inside.
Along with evaporating pressure raises, require engine speed V also to improve, engine fan-out capability and indoor load are complementary, when V=Vb, engine speed no longer improves, and opens the energy storage equipment bypass, it is cold excessively to make the part cold-producing medium flow to energy storage equipment, and cold is taken out of from energy storage equipment.
When heating running, adopt condensing pressure to characterize indoor load, condensing pressure is low to show the indoor load height, and the condensing pressure height shows that indoor load is low.
Along with condensing pressure raises, require engine speed V also to reduce, engine fan-out capability and indoor load are complementary, when V=Va, engine speed no longer reduces, and opens the energy storage equipment bypass, make the part high-temperature high-pressure refrigerant flow to energy storage equipment and cross condensation, heat is deposited in the energy storage equipment.
Along with condensing pressure reduces, require engine speed V also to improve, engine fan-out capability and indoor load are complementary, when V=Vb, engine speed no longer improves, and opens the energy storage equipment bypass, make the part cold-producing medium flow to the energy storage equipment evaporation, heat is taken out of in energy storage equipment.
When the present invention used, during refrigeration, when indoor load was low, engine still kept economic speed without low-speed running and load coupling, and unnecessary cold stores at energy storage equipment; When indoor load was very high, the engine coupling that need not run up very much and load still kept economic speed, and not enough cold is by the cold-storage device supply.When heating, when indoor load was low, unnecessary heat stored at energy storage equipment; When indoor load was very high, not enough heat was by the energy storage equipment supply.Guarantee that whole service cycle, engine guaranteed to turn round always under economic speed, reach the purpose of fuel saving.
Therefore, the present invention compared with prior art can significantly improve the utilization ratio of aircondition, energy savings.
Description of drawings
Fig. 1 is common non-accumulative type engine driving type air-conditioning apparatus schematic diagram;
Fig. 2 is engine speed and relationship between efficiency figure;
Fig. 3 is engine speed and device refrigeration (heat) ability schematic diagram;
Fig. 4 is an accumulative type engine driving type air-conditioning apparatus structural representation of the present invention;
Fig. 5 moves control chart for the present invention;
Fig. 6 is the present invention's energy storage equipment 8 structural representations.
Description of reference numerals: 1-engine, 2-compressor, 3-cross valve, 4-outdoor heat exchanger, 5-expansion valve a, 6-magnetic valve a, 7-magnetic valve b, 8-energy storage equipment, 9-expansion valve b, 10-indoor heat exchanger, the 11-low pressure sensor, 12-high pressure sensor, 80-heat-insulation layer, 81-accumulation of energy liquid, 82-coil pipe
The specific embodiment
Below in conjunction with drawings and Examples content of the present invention is described in further details.
As shown in Figure 4, accumulative type engine driving type air-conditioning apparatus of the present invention comprises engine 1, compressor 2, cross valve 3, outdoor heat exchanger 4, expansion valve a5, magnetic valve a6, magnetic valve b7, energy storage equipment 8, expansion valve b9, indoor heat exchanger 10, low pressure sensor 11 and high pressure sensor 12.Compressor 2 is driven by transmission device by gas engine, and compressor 2, cross valve 3, outdoor heat exchanger 4, expansion valve a5, expansion valve b9, indoor heat exchanger 10, low pressure sensor 11 and high pressure sensor 12 constitute closed circuit according to prior art.The contrast prior art, the present invention has increased magnetic valve a6, magnetic valve b7 and energy storage equipment 8, inserting the energy storage equipment loop on the aforementioned closed circuit between outdoor heat exchanger 4, the indoor heat exchanger 10, the energy storage equipment loop is controlled and being communicated with or disconnection of aforementioned closed circuit by magnetic valve a6, magnetic valve b7.
During refrigeration, the compressed high-temperature high-pressure refrigerant that becomes of the cold-producing medium of low-temp low-pressure, pass through 4 condensations of cross valve 3 inlet chamber external heat exchangers then, next cold-producing medium may enter energy storage equipment 8 by magnetic valve a6, arrive indoor heat exchanger 10 evaporations again, also may pass through magnetic valve b7, enter indoor heat exchanger 10 without energy storage equipment 8, evaporation back low-temperature low-pressure refrigerant flows back to compressor through cross valve 3.Common refrigeration, cold-storage and put cold control and undertaken by following requirement:
(1) when low pressure Ps＜Ps.t (target low pressure), engine speed V＞Va then reduces V, makes engine output and indoor load coupling, belongs to common kind of refrigeration cycle;
(2) as low pressure Ps＜Ps.t, engine speed V=Va then keeps V=Va, enters the cold-storage circulation;
(3) as low pressure Ps＞Ps.t, engine speed V＜Va then improves V, makes engine output and indoor load coupling, belongs to common kind of refrigeration cycle;
(4) as low pressure Ps＞Ps.t, engine speed V＞Vb then keeps V=Vb, enters and puts cold circulation;
| Expansion valve a | Magnetic valve a | Magnetic valve b | Energy storage equipment | Expansion valve b | |
| Common refrigeration | Standard-sized sheet | Close | Open | Do not work | Regulate |
| The cold-storage circulation | Regulate | Open | Close | Cold-storage | Standard-sized sheet |
| Put cold circulation | Standard-sized sheet | Open | Close | Put cold | Regulate |
When heating, the compressed high-temperature high-pressure refrigerant that becomes of the cold-producing medium of low-temp low-pressure, enter indoor heat exchanger 10 condensations through cross valve 3 then, next cold-producing medium may be by energy storage equipment 8 and 4 evaporations of magnetic valve a6 inlet chamber external heat exchanger, also may pass through magnetic valve b7, without energy storage equipment 8 inlet chamber external heat exchangers 4, evaporation back low-temperature low-pressure refrigerant flows back to compressor through cross valve 3.Commonly heat, accumulation of heat and heat release control undertaken by following requirement:
(1) when high-pressure Pd＞Pd.t (target high-pressure), engine speed V＞Va then reduces V, makes engine output and indoor load coupling, belongs to the common circulation that heats;
(2) as high-pressure Pd＞Pd.t, engine speed V=Va then keeps V=Va, enters the accumulation of heat circulation;
(3) as high-pressure Pd＜Pd.t, engine speed V＜Vb then improves V, makes engine output and indoor load coupling, belongs to the common circulation that heats;
(4) as high-pressure Pd＜Pd.t, engine speed V=Vb then keeps V=Vb, enters the heat release circulation;
| Expansion valve a | Magnetic valve a | Magnetic valve b | Energy storage equipment | Expansion valve b | |
| Common heating | Regulate | Close | Open | Do not work | Standard-sized sheet |
| The accumulation of heat circulation | Regulate | Open | Close | Accumulation of heat | Standard-sized sheet |
| The heat release circulation | Regulate | Open | Close | Heat release | Regulate |
As shown in Figure 2, engine is the efficient height when middling speed, and efficient is low when low and higher, so middling speed is the economic speed of engine, and 1500 ~ 2250rpm for example, i.e. Va=1500rpm, Vb=2250rpm.
As shown in Figure 3, the high more refrigeration of engine speed (heat) amount is big more.
As shown in Figure 5, the section indoor load is a-b-c-d at a time, and for a-b section load, engine maintains economic speed lower limit V=Va, has more refrigerating capacity a-b-e-a and stores at energy storage equipment 8; To b-c section load, engine maintains between economic speed Va ~ Vb and moves, and with the load coupling, does not have unnecessary cold, does not also lack cold; To c-d section load, engine maintains between economic speed upper limit V=Vb and moves, and not enough cold is replenished by energy storage equipment 8.
The above is preferred embodiment of the present invention only, is not to be used for limiting scope of the invention process.So all doing according to the described shape of the present patent application scope, structure, feature and spirit all is equivalent variations or modification, all should be included within the claim of the present invention.
Claims (2)
1, a kind of control method of accumulative type engine driving type air-conditioning apparatus, described accumulative type engine driving type air-conditioning apparatus comprises compressor, compressor is driven by transmission device by gas engine, compressor and outdoor heat exchanger, indoor heat exchanger, expansion valve and the connecting pipe between them constitute closed circuit, on closed circuit, also comprise the temperature and pressure checkout gear, inserting the energy storage equipment loop on the aforementioned closed circuit between outdoor heat exchanger, the indoor heat exchanger, the energy storage equipment loop is controlled and being communicated with or disconnection of aforementioned closed circuit by magnetic valve; It is characterized by: during cooling operation, adopt evaporating pressure to characterize indoor load, evaporating pressure is low to show that indoor load is low, and the evaporating pressure height shows the indoor load height; Along with evaporating pressure reduces, require described gas engine rotating speed also to reduce, described gas engine fan-out capability and indoor load are complementary, when described gas engine rotating speed reaches economic minimum speed, described gas engine rotating speed no longer reduces, open the energy storage equipment bypass, make the part cold-producing medium flow to the energy storage equipment evaporation, cold is left in the inside; Along with evaporating pressure raises, require described gas engine rotating speed also to improve, described gas engine fan-out capability and indoor load are complementary, when described gas engine rotating speed reaches economic maximum speed, described gas engine rotating speed no longer improves, open the energy storage equipment bypass, it is cold excessively to make the part cold-producing medium flow to energy storage equipment, and cold is taken out of from energy storage equipment; When heating running, adopt condensing pressure to characterize indoor load, condensing pressure is low to show the indoor load height, and the condensing pressure height shows that indoor load is low; Along with condensing pressure raises, require described gas engine rotating speed also to reduce, described gas engine fan-out capability and indoor load are complementary, when described gas engine rotating speed reaches economic minimum speed, described gas engine rotating speed no longer reduces, open the energy storage equipment bypass, make the part high-temperature high-pressure refrigerant flow to energy storage equipment and cross condensation, heat is deposited in the energy storage equipment; Along with condensing pressure reduces, require described gas engine rotating speed also to improve, described gas engine fan-out capability and indoor load are complementary, when described gas engine rotating speed reaches economic maximum speed, described gas engine rotating speed no longer improves, open the energy storage equipment bypass, make the part cold-producing medium flow to the energy storage equipment evaporation, heat is taken out of in energy storage equipment.
2, the control method of accumulative type engine driving type air-conditioning apparatus according to claim 1, it is characterized by: described energy storage equipment constitutes housing by heat-insulation layer, be filled with accumulation of energy liquid in the housing, the coil pipe sealing places accumulation of energy liquid, and coil pipe communicates with the aforementioned closed circuit of energy storage equipment outside by outlet and inlet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2007100317007A CN100516676C (en) | 2007-11-27 | 2007-11-27 | Accumulative type engine driving type air-conditioning apparatus and control method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2007100317007A CN100516676C (en) | 2007-11-27 | 2007-11-27 | Accumulative type engine driving type air-conditioning apparatus and control method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101162102A CN101162102A (en) | 2008-04-16 |
| CN100516676C true CN100516676C (en) | 2009-07-22 |
Family
ID=39297064
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2007100317007A Expired - Fee Related CN100516676C (en) | 2007-11-27 | 2007-11-27 | Accumulative type engine driving type air-conditioning apparatus and control method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100516676C (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11480344B2 (en) | 2018-06-06 | 2022-10-25 | Qingdao Haier Air-Conditioning Electronic Co., Ltd. | Multi-split air conditioner and control method therefor |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102331042A (en) * | 2011-03-30 | 2012-01-25 | 上海本家空调系统有限公司 | Energy storage type heat energy air conditioner |
| CN102937315A (en) * | 2012-11-27 | 2013-02-20 | 南京大学 | Refrigeration and cold accumulation system |
| CN111726967B (en) * | 2020-06-29 | 2023-02-24 | 北京百度网讯科技有限公司 | Refrigerating system and refrigerating method of data center |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0274727A2 (en) * | 1987-01-16 | 1988-07-20 | Bayerische Motoren Werke Aktiengesellschaft, Patentabteilung AJ-3 | Cooling circuit for an air conditioning plant |
| JP2002221371A (en) * | 2001-01-24 | 2002-08-09 | Tokyo Gas Co Ltd | Air conditioner |
| CN2679562Y (en) * | 2004-01-19 | 2005-02-16 | 董凯军 | Solar implementing air conditioner |
| CN1862196A (en) * | 2005-05-13 | 2006-11-15 | Lg电子株式会社 | Regenerative cooling system and driving method thereof |
| CN2854454Y (en) * | 2005-12-06 | 2007-01-03 | 东南大学 | Mixed power gas heat pump air conditioner |
-
2007
- 2007-11-27 CN CNB2007100317007A patent/CN100516676C/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0274727A2 (en) * | 1987-01-16 | 1988-07-20 | Bayerische Motoren Werke Aktiengesellschaft, Patentabteilung AJ-3 | Cooling circuit for an air conditioning plant |
| JP2002221371A (en) * | 2001-01-24 | 2002-08-09 | Tokyo Gas Co Ltd | Air conditioner |
| CN2679562Y (en) * | 2004-01-19 | 2005-02-16 | 董凯军 | Solar implementing air conditioner |
| CN1862196A (en) * | 2005-05-13 | 2006-11-15 | Lg电子株式会社 | Regenerative cooling system and driving method thereof |
| CN2854454Y (en) * | 2005-12-06 | 2007-01-03 | 东南大学 | Mixed power gas heat pump air conditioner |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11480344B2 (en) | 2018-06-06 | 2022-10-25 | Qingdao Haier Air-Conditioning Electronic Co., Ltd. | Multi-split air conditioner and control method therefor |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101162102A (en) | 2008-04-16 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN2884061Y (en) | Parallel compressor low-temperature air source heat pump device capable of realizing two-stage compression | |
| CN106482376A (en) | Refrigeration or heat pump and its refrigerant circulation amount adjustment method | |
| CN106642787A (en) | Refrigerating or heating pump system with adjustable refrigerant circulation quantity | |
| CN102128508A (en) | Ejector throttling air supplementing system and air supplementing method of heat pump or refrigeration system | |
| CN103411349B (en) | Integration air energy source pump | |
| CN201666686U (en) | Injector throttling air supplement system | |
| CN101957060A (en) | Ultralow temperature air source heat pump hot-water machine | |
| CN1740696A (en) | Combined central air conditioning condensation heat recovery utilizating system and method | |
| CN101498518A (en) | Water heating system of multifunctional ice accumulation air conditioner and its control method | |
| CN100516676C (en) | Accumulative type engine driving type air-conditioning apparatus and control method thereof | |
| CN101482321A (en) | Ultra-low temperature heat pump water heater | |
| CN215002377U (en) | High-temperature gas heat pump unit adopting step heating | |
| CN201053786Y (en) | Highly effective energy-saving heat pump hot water set | |
| CN202204147U (en) | Air-energy heat pump water heater | |
| CN102121727B (en) | Dual-energy gas heat pump air-conditioning system for refrigeration and heating and operating method thereof | |
| CN102734981B (en) | Air-source modular three-in-one air-conditioning hot water system | |
| CN1632419A (en) | Self-folding type air source heat pump water heater | |
| CN206113384U (en) | Refrigeration or heat pump system | |
| CN108759157B (en) | One-time throttling two-stage compression heat pump system | |
| CN108709333B (en) | Operation method and system of secondary throttling middle complete cooling refrigerating system | |
| CN201503170U (en) | Ground-source heat pump unit capable of providing full heat recovery | |
| CN1431439A (en) | Double stage compresses hot pump in low temp system and its equipment | |
| CN210463660U (en) | Ultra-low temperature air source heat pump unit with parallel compressors | |
| KR20030041380A (en) | Refrigeration system | |
| CN108759156B (en) | Secondary throttling middle incomplete cooling two-stage compression heat pump system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: GUANGDONG XINFENG PHARMACEUTICAL CO., LTD. Free format text: FORMER OWNER: GUANGZHOU ENERGY SOURCE INST., C.A.S. Effective date: 20140110 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 510640 GUANGZHOU, GUANGDONG PROVINCE TO: 516100 HUIZHOU, GUANGDONG PROVINCE |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20140110 Address after: Hongbo Industrial Zone 516100 Guangdong city of Huizhou province Boluo County Patentee after: GUANGDONG XINFENG PHARMACEUTICAL Co.,Ltd. Address before: Energy road Guangzhou City, Guangdong province 510640 Wushan Park No. 1 Guangzhou Institute of Energy Conversion.CAS Patentee before: Guangzhou Institute of Energy Conversion, Chinese Academy of Sciences |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090722 Termination date: 20211127 |