CN100576129C - Absorption refrigerating machine - Google Patents
Absorption refrigerating machine Download PDFInfo
- Publication number
- CN100576129C CN100576129C CN200610166773A CN200610166773A CN100576129C CN 100576129 C CN100576129 C CN 100576129C CN 200610166773 A CN200610166773 A CN 200610166773A CN 200610166773 A CN200610166773 A CN 200610166773A CN 100576129 C CN100576129 C CN 100576129C
- Authority
- CN
- China
- Prior art keywords
- water temperature
- cold water
- operational ton
- change
- dead band
- 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
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B49/00—Arrangement or mounting of control or safety devices
- F25B49/04—Arrangement or mounting of control or safety devices for sorption type machines, plants or systems
- F25B49/043—Operating continuously
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B15/00—Sorption machines, plants or systems, operating continuously, e.g. absorption type
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B2315/00—Sorption refrigeration cycles or details thereof
- F25B2315/005—Regeneration
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B2500/00—Problems to be solved
- F25B2500/19—Calculation of parameters
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B2600/00—Control issues
- F25B2600/25—Control of valves
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A30/00—Adapting or protecting infrastructure or their operation
- Y02A30/27—Relating to heating, ventilation or air conditioning [HVAC] technologies
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
- Y02B30/62—Absorption based systems
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
- Y02B30/70—Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Sorption Type Refrigeration Machines (AREA)
Abstract
A kind of control method of absorption refrigerating machine.In the prior art for cold water temperature is controlled to design temperature, with the fuel valve aperture of high-temp regenerator burner as operational ton M, when by PID control this operational ton M being controlled, the pace of change of cold water temperature is according to the situation that is provided with of absorption refrigerating machine etc. and inequality.Under the fast situation of this pace of change, the control of the aperture of the fuel valve of burner is also carried out fast, can follow load change quickly, even but cold water temperature subtle change during specified running, also carry out the aperture control of the fuel valve of burner, cold water temperature changes up and down, instability.Set the dead band on the positive dirction of the operational ton M (100%) of the present invention when specified running, change the width of dead band according to proportional P, become big with the width that under the fast situation of the pace of change of cold water temperature, makes described dead band, under the slow situation of the pace of change of cold water temperature, the width of described dead band is diminished, thereby absorb near the subtle change of cold water temperature 100%, make cold water temperature stable.
Description
Technical field
The present invention relates to a kind of is the technology that PID control is controlled the running of absorption refrigerating machine by the control based on proportional, integral and differential term sum.
Background technology
Be that cold water temperature controls in the running control of set water temperature with the fuel valve aperture of the burner of high-temp regenerator as operational ton M and with the output of absorption refrigerating machine, compare with set water temperature, in the scope that water temperature is quite high at present, establishing operational ton M is 100%; In the scope that water temperature is quite low at present, if operational ton is 0%, make operational ton M and present water temperature proportional and when controlling in above-mentioned scope between the two, has the problem that operating lag under the situation of certain external interference is arranged in generation, in order to address this problem, known have the PID of employing to control (for example patent documentation 1).
Patent documentation 1: the spy opens flat 10-170088 communique
In PID control, be set in operational ton M and be roughly under the situation of the cold water that obtains set water temperature under 100% the state (specified output is roughly 100% state), when water temperature is near set water temperature at present, has the problem that operational ton M does not have surplus, controlled variation, therefore in order to address this problem, Comparative Examples item, integral and differential multiply by correction coefficient A, B, the C that is determined by the relation of present water temperature and set water temperature respectively in the patent documentation 1.
Like this, be that cold water temperature controls to design temperature for output with absorption refrigerating machine, with the fuel valve aperture of the burner of high-temp regenerator as operational ton M, by the control based on proportional, integral and differential term sum is PID control when this operational ton M is controlled, as the pace of change of the cold water temperature of output according to the situation that is provided with of absorption refrigerating machine etc. and inequality.Under the fast situation of this pace of change, the control of input heat (the aperture control of the fuel valve of burner) is also carried out fast, can follow load change quickly, but has following problem: even cold water temperature subtle change during specified running, also to import the control (the aperture control of the fuel valve of burner) of heat, cold water temperature changes up and down, instability.
Summary of the invention
The present invention puts in view of the above problems and researches and develops, and on the positive dirction by the controlled quentity controlled variable (100%) when the specified running dead band is set, and can absorb near the subtle change of cold water temperature 100%, makes cold water temperature stable and control.At this moment, the width of dead band is according to the setting value of control rate and can change, and can both tackle under fast, the slow situation of the pace of change of cold water temperature thus.
The control method of first aspect present invention absorption refrigerating machine, for the output with absorption refrigerating machine is that cold water temperature controls to design temperature, with the fuel valve aperture of the burner of high-temp regenerator as operational ton M, by based on proportional, the control of integral and differential term sum is that PID control is controlled this operational ton M, it is characterized in that, operational ton M when specified running is 100% o'clock, on the positive dirction of operational ton M, set the dead band, change the width of described dead band according to described proportional P, become big with the width that under the fast situation of the pace of change of cold water temperature, makes described dead band, under the slow situation of the pace of change of cold water temperature, the width of described dead band is diminished, the new operational ton (Mc) that poor (the Δ M) of storage by the operational ton (M) that adds the operational ton (M) of being calculated by set water temperature and PID setting value and calculated by the detected water temperature of temperature detecting part on present operational ton (Mc) calculates in storer.
According to first aspect present invention, even as the cold water temperature of output and under the situation inequality according to the situation that is provided with of absorption refrigerating machine etc., by under the fast situation of the pace of change of cold water temperature, making the width of dead band big, under the slow situation of the pace of change of cold water temperature, make the width of dead band little, thereby can both tackle under fast, the slow situation of the pace of change of cold water temperature, the cold water temperature when making the specified running of absorption refrigerating machine is stable.
Description of drawings
Fig. 1 is the summary construction diagram (embodiment 1) of absorption refrigerating machine of the present invention;
Control flow chart when Fig. 2 is dead band of the present invention variable-width (embodiment 1);
Fig. 3 is the control flow chart (embodiment 1) of dead band of the present invention width fixedly the time.
Symbol description
1 high-temp regenerator
2 burners
3 low-temperature regenerators
4 condensers
5 evaporators
6 absorbers
7 low temperature heat exchangers
8 high-temperature heat exchangers
9～11 absorption liquid pipes
12 absorb liquid pump
13～15 refrigerant pipes
16 refrigerated medium pumps
17 cold water pipes
19 gas supply pipes that are communicated with gas burner 2
20 combustion pumps
21 temperature detecting parts
22 control parts
Embodiment
The control method of absorption refrigerating machine of the present invention, for the output with absorption refrigerating machine is that cold water temperature controls to design temperature, with the fuel valve aperture of the burner of high-temp regenerator as operational ton M, by based on proportional, the control of integral and differential term sum is that PID control is controlled this operational ton M, wherein, set the dead band on the positive dirction of operational ton M (100%) when specified running, the width that can corresponding described proportional P changes described dead band, under the fast situation of the pace of change of cold water temperature, making the width of described dead band big, under the slow situation of the pace of change of cold water temperature, make the width of described dead band little.
Embodiment 1
The embodiment of absorption refrigerating machine of the present invention below is described.Fig. 1 is the summary construction diagram of expression absorption refrigerating machine of the present invention, and the control flow chart when Fig. 2 is dead band of the present invention variable-width, Fig. 3 are the control flow chart of dead band of the present invention width fixedly the time.
Next embodiments of the invention are described.Fig. 1 represents that cold-producing medium makes water, absorption liquid use the summary construction diagram of the absorption refrigerating machine of lithium bromide (LiBr).High-temp regenerator 1 utilizes the firepower heating of the combustion heater 2 that acts as a fuel with municipal combustion gas etc. to sneak into the dilute solution of absorption liquid and cold-producing medium, makes the cold-producing medium evaporation, and absorption liquid is separated with cold-producing medium.Symbol 3 is low-temperature regenerators, the 4th, condenser, the 5th, evaporator, the 6th, absorber, the 7th, low temperature heat exchanger, the 8th, high-temperature heat exchanger, 9～11st, the absorption liquid pipe, the 12nd, absorb liquid pump, 13～15th, refrigerant pipe, the 16th, refrigerated medium pump, the 17th, cold water pipe, the 18th, cooling water pipe, the 19th, the gas supply pipe that is communicated with gas burner 2, the 20th, control is to the combustion valve of the fuel gas supply amount of gas burner 2 supplies, the 21st, the temperature detecting part of the outlet temperature of detection cold water pipe 17,22 are based on the control part of the aperture of temperature detecting part 21 detected temperature control fuel valves 20.Control part 22 is by setting data that will be stored in data store and the aperture of relatively controlling fuel valve 20 based on the data of temperature detecting part 21 detected temperature.
The control method that is used for the outlet temperature (hereinafter referred to as cold water temperature) as the cold water pipe 17 of the output of absorption refrigerating machine is controlled to set water temperature of the present invention, with the aperture of the fuel valve 20 of the gas burner 2 of high-temp regenerator 1 as operational ton M, by the control based on proportional, integral and differential term sum is that PID control is controlled this operational ton M, such as above-mentioned patent documentation 1 (spy opens flat 10-170088 communique) record ground, operational ton M is by formula 1 or formula 2 expressions.Control part 22 also has storer except that above-mentioned functions, its storage necessary program of system controlled by computer or design temperature data, the operational ton M that calculates based on temperature detecting part 21 detected temperature and carry out the necessary various data of control action.
Formula 1
M: operational ton (%)
P: proportional band (℃)
Ti: integral time (second)
Td: derivative time (second)
τ: sampling time (second)
e
n: the deviation of n target water temperature and present water temperature
e
N-1: the deviation of n-1 target water temperature and present water temperature
A, B, C: correction coefficient
M: operational ton (%)
P: proportional band (℃)
Ti: integral time (second)
Td: derivative time (second)
τ: sampling time (second)
e
n: the deviation of n target water temperature and present water temperature
e
N-1: the deviation of n-1 target water temperature and present water temperature
Like this, be PID control when operational ton M is controlled by control based on proportional, integral and differential term sum, have nothing in common with each other as the pace of change of the cold water temperature of output difference owing to the situation that is provided with of absorption refrigerating machine etc.Under the fast situation of this pace of change, the control of input heat (the aperture control of the fuel valve 20 of burner 2) is also carried out fast, can follow load change quickly, but has following problem: even cold water temperature subtle change during specified running, also to import the control (the aperture control of the fuel valve of burner) of heat, cold water temperature changes up and down, instability.
Usually, being set in operational ton M is the cold water that obtains set water temperature under 100% the state (specified 100% the state that is output as) from the outlet of cold water pipe 17, but when specified running under the state of the controlled quentity controlled variable (operational ton M is 100%) of when output 100% (specified), even cold water temperature subtle change, the fuel valve 20 of burner 2 is also followed this subtle change and is carried out aperture control, specified operating condition with 100% is that fluctuation status appears in the boundary, becomes the state that can not control specified running stable (control operation amount M is 100%).
In order to eliminate this wave phenomenon, have following control method, that is, on the positive dirction of the controlled quentity controlled variable when specified running (100%) dead band is set, thus, absorb near the subtle change of cold water temperature 100%, can make cold water temperature stable.As shown in Figure 3, this method detects present water temperature (step S1) by temperature detecting part 21, from storer, read the value Mc (step S2) of present operational ton M, calculate the difference Δ M (step S3) of the operational ton M that calculates by the outlet water temperature (being called set water temperature) and the PID setting value (proportional, integral and differential term) of predefined cold water pipe 17 and the operational ton M that calculates based on temperature detecting part 21 detected water temperatures, on the value Mc of present operational ton M, add this difference DELTA M and calculate the value Mc (step S4) of new operational ton M.
As embodiment, the width of establishing the dead band is 20.Thus, carry out following judgement control, in the value of this new operational ton Mc is 0 it to be made as 0 (step S5) when following, and the value of the operational ton Mc that this is new is 120 it to be made as 120 (step S6) when above, and the value of the operational ton Mc that this is new is saved in (step S7) in the storer.And, calculate the operational ton Mt (step S8) of the target aperture of the valve 20 that acts as a fuel by this new operational ton Mc, judge that Mc is still is more than 100 below 100, if Mc is 100 with the next Mt=Mc that establishes, if Mc then establishes Mt=100 more than 100, it is saved in the storer (step S9), and control part 22 transmits output signal to fuel valve 20, and the aperture that makes fuel valve 20 is Mt (step S10).
Like this, by carrying out above-mentioned computing repeatedly, be 100 o'clock at present operational ton Mc, Mt is 100, and the aperture Mt of petrolift 20 of this moment is Mt=100, i.e. 100% output state, and the fired state of burner 2 is 100% state.And, for example be at+5 o'clock at the above-mentioned Δ M that calculates, new operational ton Mc is 105, the aperture Mt that keeps fuel valve 20 then is 100 state, until calculating Mc is 120, therefore, keep 100% output state, even the outlet water temperature of cold water pipe 17 change, the aperture of fuel valve 20 also keeps 100%, is under 100% the specified output state at the fired state of burner 2, even the outlet temperature small variations of cold water pipe 17, fuel valve 20 is not followed this small variations generation aperture change yet, and fuel valve 20 becomes insensitive, becomes steady state (SS).
That is, the output valve that can change the aperture of fuel valve 20 is 0～100%, but the width of for example setting the dead band is 20 o'clock, is more than 100 when (100～120 scopes) at the calculated value of operational ton M, and making the output valve that can change fuel valve 20 apertures is 100%.Therefore,, also can avoid near the wave phenomenon 100% specified output roughly, can absorb near the subtle change of the outlet water temperature of cold water pipe 17 100%, make the outlet water temperature stability of cold water pipe 17 even what rise the outlet water temperature of cold water pipe 17.Width with the dead band is fixed on 20 as mentioned above, but the width of dead band also can be 10 or 15, as long as be defined as suitable width by prior experiment.
At this, present operational ton Mc is that benchmark is judged with 100, but can be benchmark with Mc=98 also, judges that Mc is below 98 or more than 98, the aperture of petrolift 20 also can be 100% when Mc=98 was above.At this moment, more than the Mc=98, become the operating condition of specified output 100%, even what descend the outlet water temperature of cold water pipe 17, or what rise, also can avoid near roughly 100% the wave phenomenon of specified output, can absorb near the subtle change of the outlet water temperature of cold water pipe 17 100%, make the outlet water temperature stability of cold water pipe 17.
In the above description, the width employing of dead band for example is fixed as 20 value, but in the present invention, particularly change this width value, situation that outlet water temperature pace of change that can corresponding cold water pipe 17 is fast or slow situation by setting value according to control rate.
Promptly, be that the variable and aforesaid mode of P setting value (proportional) is under the state of definite value 20 with fixing dead band width setup with proportional band width setting value with respect to PID control, change in the P setting value at 20 o'clock from 1, calculate the width of dead band with 20/P (20 divided by P).The P setting value is the value that can change by the operation remote control type operating portions such as operational administrative person of absorption refrigerating machine.Therefore, operational administrative person etc. observe based on temperature detecting part 21 detected temperature and by the action of control part 22 temperature variation of temperature displayed display part, change under the slow situation in the outlet water temperature of cold water pipe 17, correspondingly increase P, thus, the width of dead band reduces.In addition, under the fast situation of the outlet water temperature variation of cold water pipe 17, correspondingly reduce P, thus, the width of dead band increases.By aforesaid operations, can carry out control corresponding to the outlet water temperature pace of change of cold water pipe 17, change under the fast or slow situation and can both tackle in the outlet water temperature of cold water pipe 17, the cold water temperature in the time of can making the specified running of absorption refrigerating machine is stable.Also be that the molecule among the 20/P is under the situation of definite value 20 as the fixed width 20 of dead band this moment, with similarly above-mentioned, as long as be defined as suitable value by prior experiment.
Fig. 2 represents relative control flow.In Fig. 2, be the same with the situation of Fig. 3 from step S1 to step S4.In step S5, calculate the breadth extreme Mm (for example Mm=20/P) of Mc by the P setting value (proportional) of PID control.And, carry out following judgement control, the Mc that calculates at step S4 0 is made as 0 (step S6) with it when following, is that 100+Mm is made as 100+Mm (step S7) with it when above in the value of this new operational ton Mc, and the value of the operational ton Mc that this is new is kept at (step S8) in the storer.And, the target aperture of calculating fuel valve 20 by this new operational ton Mc is operational ton Mt (step S9), judge that Mc is still is more than 100 below 100, if Mc is 100 with the next Mt=Mc that establishes, if Mc then establishes Mt=100 more than 100, and it is saved in (step S10) in the storer, control part 22 is to fuel valve 20 transmission output signal, so that the aperture of fuel valve 20 is Mt (step S10).
Like this, by carrying out above-mentioned computing repeatedly, be 100 o'clock at present operational ton Mc, Mt is 100, and the aperture Mt of the fuel valve 20 of this moment is i.e. 100% output state of Mt=100, and the fuel state of fuel device 2 is 100% state.Owing to carry out following control, promptly, make the Mc that calculates in step 40 it is made as 0 when following, in the value of new operational ton Mc is that 100+Mm is made as 100+Mm with it when above, so can control, change under the fast or slow situation and can both tackle in the outlet water temperature of cold water pipe 17 corresponding to the outlet water temperature pace of change of cold water pipe 17.
Utilizability on the industry
The invention is not restricted to above-mentioned embodiment, the piping diagram of absorption refrigerating machine is applicable existing skill also The form of each figure in the patent documentation 1 of putting down in writing in the art is in the scope that does not break away from technical scheme of the present invention In can carry out various distortion.
Claims (1)
1, a kind of control method of absorption refrigerating machine, for the output with absorption refrigerating machine is that cold water temperature is controlled to be design temperature, with the fuel valve aperture of the burner of high-temp regenerator as operational ton M, by based on proportional, the control of integral and differential term sum is that PID control is controlled this operational ton M, it is characterized in that, operational ton M when specified running is 100% o'clock, on the positive dirction of operational ton M, set the dead band, can change the width of described dead band according to described proportional P, become big with the width that under the fast situation of the pace of change of cold water temperature, makes described dead band, under the slow situation of the pace of change of cold water temperature, the width of described dead band is diminished, the new operational ton (Mc) of storage in storer, this new operational ton (Mc) is calculated by poor (the Δ M) that adds operational ton (M) of being calculated by set water temperature and PID setting value and the operational ton (M) of being calculated by the detected water temperature of temperature detecting part on present operational ton (Mc).
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2006088937A JP4776416B2 (en) | 2006-03-28 | 2006-03-28 | Absorption refrigerator |
| JP088937/06 | 2006-03-28 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101046693A CN101046693A (en) | 2007-10-03 |
| CN100576129C true CN100576129C (en) | 2009-12-30 |
Family
ID=38636620
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200610166773A Expired - Fee Related CN100576129C (en) | 2006-03-28 | 2006-12-14 | Absorption refrigerating machine |
Country Status (3)
| Country | Link |
|---|---|
| JP (1) | JP4776416B2 (en) |
| KR (1) | KR100990822B1 (en) |
| CN (1) | CN100576129C (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2011247508A (en) * | 2010-05-27 | 2011-12-08 | Sanyo Electric Co Ltd | Operation control method of exhaust gas type absorption chiller heater |
| CN102313416A (en) * | 2011-09-30 | 2012-01-11 | 浪达科技（深圳）有限公司 | Control system of heating device for vehicular refrigerating equipment and method thereof |
| CN102313415B (en) * | 2011-10-08 | 2014-01-29 | 深圳市唯克瑞投资咨询有限公司 | Control system of vehicular refrigerating equipment and method thereof |
| CN104792079B (en) * | 2015-04-10 | 2017-03-08 | 柳州职业技术学院 | A kind of temperature scaling factor method of steam type lithium bromide adsorption water chilling unit |
| CN109101049B (en) * | 2018-10-26 | 2020-11-24 | 马鞍山当涂发电有限公司 | Desulfurization absorption tower pH value-to-power frequency hybrid control system and method |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5156013A (en) * | 1990-05-29 | 1992-10-20 | Sanyo Electric Co., Ltd. | Control device for absorption refrigerator |
| CN1174974A (en) * | 1996-08-23 | 1998-03-04 | 三洋电机株式会社 | Absorption type refrigerating apparatus |
| JP2777470B2 (en) * | 1990-09-18 | 1998-07-16 | 三洋電機株式会社 | Control device for absorption refrigerator |
| JP2823338B2 (en) * | 1990-08-08 | 1998-11-11 | 三洋電機株式会社 | Absorption chiller control device |
| CN1378063A (en) * | 2001-03-28 | 2002-11-06 | 三洋电机株式会社 | Absorptive freezer control method |
| CN1389695A (en) * | 2001-05-31 | 2003-01-08 | 三洋电机株式会社 | COntrol method of absorption refrigerating machine |
| CN1683846A (en) * | 2004-04-14 | 2005-10-19 | 三洋电机株式会社 | Absorptive refrigerating machine |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2527615B2 (en) | 1989-05-31 | 1996-08-28 | 三洋電機株式会社 | Temperature control device |
| JP3059534B2 (en) | 1991-07-19 | 2000-07-04 | 株式会社鷺宮製作所 | Control method of reversible proportional expansion valve |
| JP2584923B2 (en) * | 1991-10-30 | 1997-02-26 | 山武ハネウエル株式会社 | Absorption water heater controller |
| JP3321911B2 (en) * | 1993-07-01 | 2002-09-09 | 東京瓦斯株式会社 | Absorption refrigeration equipment |
| JPH08233392A (en) * | 1995-02-24 | 1996-09-13 | Sanyo Electric Co Ltd | Absorption type refrigerating machine |
| JP3738103B2 (en) * | 1996-12-10 | 2006-01-25 | 三洋電機株式会社 | Control method of absorption refrigerator |
| JP2001201203A (en) * | 2000-01-18 | 2001-07-27 | Mitsubishi Heavy Ind Ltd | Controller and controlling method for refrigerating machine |
-
2006
- 2006-03-28 JP JP2006088937A patent/JP4776416B2/en active Active
- 2006-12-14 CN CN200610166773A patent/CN100576129C/en not_active Expired - Fee Related
-
2007
- 2007-03-27 KR KR1020070029492A patent/KR100990822B1/en active IP Right Grant
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5156013A (en) * | 1990-05-29 | 1992-10-20 | Sanyo Electric Co., Ltd. | Control device for absorption refrigerator |
| JP2823338B2 (en) * | 1990-08-08 | 1998-11-11 | 三洋電機株式会社 | Absorption chiller control device |
| JP2777470B2 (en) * | 1990-09-18 | 1998-07-16 | 三洋電機株式会社 | Control device for absorption refrigerator |
| CN1174974A (en) * | 1996-08-23 | 1998-03-04 | 三洋电机株式会社 | Absorption type refrigerating apparatus |
| CN1378063A (en) * | 2001-03-28 | 2002-11-06 | 三洋电机株式会社 | Absorptive freezer control method |
| CN1389695A (en) * | 2001-05-31 | 2003-01-08 | 三洋电机株式会社 | COntrol method of absorption refrigerating machine |
| CN1683846A (en) * | 2004-04-14 | 2005-10-19 | 三洋电机株式会社 | Absorptive refrigerating machine |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2007263462A (en) | 2007-10-11 |
| KR20070097333A (en) | 2007-10-04 |
| JP4776416B2 (en) | 2011-09-21 |
| CN101046693A (en) | 2007-10-03 |
| KR100990822B1 (en) | 2010-10-29 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN100576129C (en) | Absorption refrigerating machine | |
| US7331191B2 (en) | Heating, ventilation and air conditioning (HVAC) system and method using feedback linearization | |
| US4835980A (en) | Method for controlling refrigerating system | |
| CN101413742B (en) | R410A heat pump type air conditioner heating power expansion valve bulb charging method | |
| Shu et al. | A compressor-assisted triple-effect H2O-LiBr absorption cooling cycle coupled with a Rankine Cycle driven by high-temperature waste heat | |
| Jiang et al. | Research on the control laws of the electronic expansion valve for an air source heat pump water heater | |
| Staedter et al. | Development of a micro-scale heat exchanger based, residential capacity ammonia–water absorption chiller | |
| CN104913559A (en) | Method for refrigerating unit group control based on host coefficient of performance (COP) value | |
| Tian et al. | Experimental investigation on cooling performance and optimal superheat of water source gas engine-driven heat pump system | |
| EP4242555A1 (en) | Control method and control device for electronic expansion valve of an air source heat pump system | |
| EP1583926B1 (en) | Feedforward control for absorption chiller | |
| CN105526762A (en) | Temperature and coupling running controlling method of double-compressor and double-refrigerating circuit refrigerator | |
| US10527294B2 (en) | Control of a pump to optimize heat transfer | |
| Chen et al. | Characterisation of a controllable loop thermosyphon for precise temperature management | |
| Wang et al. | Thermodynamic performance of absorption‐compression hybrid refrigeration cycles based on lithium nitrate+ 1‐butyl‐3‐methylimidazolium nitrate/water working fluid | |
| Ji et al. | Comparative study of the cascade absorption heat pump running optimal ternary ionic liquid working pair | |
| JP3418655B2 (en) | Absorption cycle operation equipment | |
| JPH04254164A (en) | Automatic temperature control device | |
| García-Arellano et al. | Experimental analysis of a transfer function for the transient response of an evaporator in an absorption refrigeration GAX system | |
| KR20090077568A (en) | Apparatus preventing from crystallizing of absorption chiller and method thereof | |
| JPS63251764A (en) | Method of controlling absorption refrigerator | |
| CN104537138A (en) | A method for optimization design of a condenser | |
| Liu et al. | Multi-variable extremum seeking control for high temperature heat pump system incorporating double refrigerant injection | |
| JP5388660B2 (en) | Operation method of absorption chiller water heater | |
| JP2001066011A (en) | Method for controlling flow rate of cooling water in water-cooled air conditioner having absorption refrigerator |
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 | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20091230 Termination date: 20111214 |