CN106338167A - Method for regulating superheat degree of electronic expansion valve - Google Patents
Method for regulating superheat degree of electronic expansion valve Download PDFInfo
- Publication number
- CN106338167A CN106338167A CN201610873355.0A CN201610873355A CN106338167A CN 106338167 A CN106338167 A CN 106338167A CN 201610873355 A CN201610873355 A CN 201610873355A CN 106338167 A CN106338167 A CN 106338167A
- Authority
- CN
- China
- Prior art keywords
- tsh
- superheat degree
- degree
- expansion valve
- value
- 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.)
- Granted
Links
- 238000000034 method Methods 0.000 title claims abstract description 20
- 230000001105 regulatory effect Effects 0.000 title abstract description 6
- 230000000694 effects Effects 0.000 abstract description 5
- 102100029223 Teashirt homolog 1 Human genes 0.000 abstract 3
- 102100029218 Teashirt homolog 2 Human genes 0.000 abstract 3
- 101710201303 Threonine synthase-like 1 Proteins 0.000 abstract 3
- 101710201302 Threonine synthase-like 2 Proteins 0.000 abstract 3
- 101000633632 Homo sapiens Teashirt homolog 3 Proteins 0.000 abstract 2
- 102100029222 Teashirt homolog 3 Human genes 0.000 abstract 2
- 238000004378 air conditioning Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
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
-
- 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
- F25B41/00—Fluid-circulation arrangements
- F25B41/20—Disposition of valves, e.g. of on-off valves or flow control valves
-
- 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
- F25B41/00—Fluid-circulation arrangements
- F25B41/30—Expansion means; Dispositions thereof
- F25B41/31—Expansion valves
- F25B41/34—Expansion valves with the valve member being actuated by electric means, e.g. by piezoelectric actuators
-
- 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
- F25B2600/2513—Expansion 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
- 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)
- Air Conditioning Control Device (AREA)
Abstract
The invention discloses a method for regulating the superheat degree of an electronic expansion valve. The method for regulating the superheat degree of the electronic expansion valve comprises the following steps that system loads are classified into Q0, Q1, Q2, Q3, .Qn, according to the values, and n intervals from Q0 to Q1, from Q1 to Q2, from Q2 to Q3, . and from Qn-1 to Qn are formed; target superheat degrees are classified into TSH0, TSH1, TSH2, TSH3, . and TSHn according to the values, and n intervals from TSH0 to TSH1, from TSH1 to TSH2, from TSH2 to TSH3, . and from TSHn-1 to TSHn are formed; the n system load values are made to be in one-to-one correspondence with the n target superheat degree values; a coordinate axis is set, a plurality of coordinate values are formed with the n system load values as X-axis coordinates and the n target superheat degree values as Y-axis coordinates, and the coordinate values are connected; and the actual system load Q is read, if the obtained actual system load Q ranges from Qm-1 to Qm, the target superheat degree value is calculated according to a formula (please see the specification for the formula), and the target superheat degree is regulated to the value. According to the method for regulating the superheat degree of the electronic expansion valve, the application range is wide, the energy-saving effect is good, the steps are simple, and the optimal superheat degree can be achieved rapidly.
Description
Technical field
The present invention relates in refrigerated air-conditioning system electric expansion valve degree of superheat regulation technology field, be especially a kind of electricity
The control method of the sub- expansion valve degree of superheat.
Background technology
The raising requiring with energy-conserving and environment-protective, electric expansion valve is got over its excellent characteristic use in air conditioner system
Come more extensive.In energy saving of system control, the regulating effect of system overheat degree is electric expansion valve application success whether key.
The control method of the prior art electric expansion valve degree of superheat mainly has the fixing degree of superheat to control and minimum thermal stability degree (mss)
Two kinds.Wherein, the control of the fixing degree of superheat is easily realized, but its scope of application is less, is only applicable to fixed speed system, in addition in difference
Energy-saving effect under load also differs；Minimum thermal stability degree controls the optimal efficiency that can realize in most cases, but
Implement that step is complex, and reach and adapt to the process needs of the degree of superheat most and take a long time.Therefore, based on above-mentioned former
Because it would be highly desirable to need a kind of control method of the electric expansion valve degree of superheat, this control method is applied widely, good energy-conserving effect, reality
Existing step is simple and can be rapidly achieved the most suitable degree of superheat, to solve the above problems.
Content of the invention
The technical problem to be solved in the present invention is to provide a kind of control method of the electric expansion valve degree of superheat, this regulation side
Method is applied widely, good energy-conserving effect, to realize step simple and can be rapidly achieved the most suitable degree of superheat.
The technical scheme is that, a kind of control method of the electric expansion valve degree of superheat is provided, comprises the following steps:
System loading is divided into q according to the size of value0、q1、q2、q3、……qn, form q0To q1、q1To q2、q2Arrive
q3、……qnTo qnN interval；
Target superheat degree is divided into tsh according to the size of value0、tsh1、tsh2、tsh3、……tshn, form tsh0Arrive
tsh1、tsh1To tsh2、tsh2To tsh3、……tshnTo tshnN interval；
N system load value is made to correspond with n target superheat angle value；
One coordinate axes of setting, using n system load value and n target superheat angle value as x-axis coordinate, y-axis coordinate, shape
Become multiple coordinate figures and this coordinate figure is connected；
Read real system load q, obtain real system load q and be in qm-1To qmInterval, then target superheat degree And target superheat degree is adjusted to this value.
Described system loading is system power.
Described system loading is system pressure.
After above method, the present invention compared with prior art, has the advantage that
System loading and target superheat degree are divided into multiple intervals by the control method of the electric expansion valve degree of superheat of the present invention
And form coordinate axess and the coordinate figure on coordinate axess connected into line, so can by judge real system load q Lai
It is calculated target superheat degree tsh.By then passing through the target superheat degree that system loading to calculate, the therefore meeting of target superheat degree
Change with the change of system loading, this makes it be not only suitable for fixed frequency air conditioner, and be suitable for convertible frequency air-conditioner and can
According to different changing load target superheat degree so that its good energy-conserving effect.By the control targe degree of superheat of above-mentioned by stages,
Not only realize step simple, and the interval of the most suitable degree of superheat it has been determined that so that its can be rapidly achieved the most suitable
The degree of superheat.
Brief description
Fig. 1 is the flow chart of the control method of the electric expansion valve degree of superheat of the present invention.
Fig. 2 is the schematic diagram that present system load and target superheat degree form coordinate axess.
Specific embodiment
The invention will be further described with specific embodiment below in conjunction with the accompanying drawings.
As shown in Figure 1 and Figure 2, the control method of a kind of electric expansion valve of present invention degree of superheat, comprises the following steps:
In the art, system loading is refrigerated air-conditioning system load, and this value by reading in system or can obtain
Arrive, to the degree of superheat then according to heat exchange temperature and suction temperature, or the information such as pressure of inspiration(Pi) and suction temperature is calculated system；
System loading is divided into q according to the size of value0、q1、q2、q3、……qn, form q0To q1、q1To q2、q2Arrive
q3、……qnTo qnN interval；In the present embodiment, system loading is divided into six intervals, respectively q0To q1、q1To q2、
q2To q3、q3To q4、q4To q5、q5To q6；
Target superheat degree is divided into tsh according to the size of value0、tsh1、tsh2、tsh3、……tshn, form tsh0Arrive
tsh1、tsh1To tsh2、tsh2To tsh3、……tshnTo tshnN interval；In the present embodiment, target superheat degree is divided
For six intervals, respectively tsh0To tsh1、tsh1To tsh2、tsh2To tsh3、tsh3To tsh4、tsh4To tsh5、tsh5Arrive
tsh6；In the present embodiment, this value above-mentioned is all to be obtained by experimental data.Because different air conditioning systems has different fortune
Row situation it is therefore desirable to record above-mentioned data according to specific air conditioning system.
N system load value is made to correspond with n target superheat angle value；
One coordinate axes of setting, using n system load value and n target superheat angle value as x-axis coordinate, y-axis coordinate, shape
Become multiple coordinate figures and this coordinate figure is connected, so can form a relatively rounder and more smooth curve, this curve can be straight by multistage
Line constitutes or is made up of the more round and smooth curve of multistage；The curve being made up of multistage curve can be than by multistage straight line
The value that the curve constituting is calculated is more accurate.
Read real system load q, obtain real system load q and be in qm-1To qmInterval, then target superheat degree And target superheat degree is adjusted to this value, that is, system is as target superheat angle value,
Directly run the value that this formula calculates.
Described system loading is system power.
Described system loading is system pressure.
Below only highly preferred embodiment of the present invention is described, but is not to be construed as limiting the scope of the invention.This
Invention is not limited only to above example, and its concrete structure allows to change.In every case in the protection model of independent claims of the present invention
Enclose interior made various change all within the scope of the present invention.
Claims (3)
1. a kind of control method of the electric expansion valve degree of superheat is it is characterised in that comprise the following steps:
System loading is divided into q according to the size of value0、q1、q2、q3、……qn, form q0To q1、q1To q2、q2To q3、……qn
To qnN interval；
Target superheat degree is divided into tsh according to the size of value0、tsh1、tsh2、tsh3、……tshn, form tsh0To tsh1、tsh1
To tsh2、tsh2To tsh3、……tshnTo tshnN interval；
N system load value is made to correspond with n target superheat angle value；
One coordinate axes of setting, using n system load value and n target superheat angle value as x-axis coordinate, y-axis coordinate, form many
This coordinate figure is simultaneously connected by individual coordinate figure；
Read real system load q, obtain real system load q and be in qm-1To qmInterval, then target superheat degree And target superheat degree is adjusted to this value.
2. according to claim 1 the electric expansion valve degree of superheat control method it is characterised in that: described system loading is
System power.
3. according to claim 1 the electric expansion valve degree of superheat control method it is characterised in that: described system loading is
System pressure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610873355.0A CN106338167B (en) | 2016-09-30 | 2016-09-30 | The adjusting method of the electric expansion valve degree of superheat |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610873355.0A CN106338167B (en) | 2016-09-30 | 2016-09-30 | The adjusting method of the electric expansion valve degree of superheat |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106338167A true CN106338167A (en) | 2017-01-18 |
| CN106338167B CN106338167B (en) | 2019-03-22 |
Family
ID=57839785
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610873355.0A Active CN106338167B (en) | 2016-09-30 | 2016-09-30 | The adjusting method of the electric expansion valve degree of superheat |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106338167B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112344511A (en) * | 2020-10-23 | 2021-02-09 | 烽火通信科技股份有限公司 | Control method, device and system suitable for machine room air conditioner refrigerant flow |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20090151378A1 (en) * | 2005-09-08 | 2009-06-18 | Noriyasu Kawakatsu | Refrigeration System |
| CN101784796A (en) * | 2007-08-17 | 2010-07-21 | 三电有限公司 | System for controlling capacity of variable capacity compressor and display device |
| JP2012202672A (en) * | 2011-03-28 | 2012-10-22 | Mitsubishi Heavy Ind Ltd | Expansion valve control device, heat source machine, and expansion valve control method |
| CN103033004A (en) * | 2011-09-29 | 2013-04-10 | 杭州三花研究院有限公司 | Car air conditioning system electronic expansion valve control method |
| CN104019520A (en) * | 2014-05-20 | 2014-09-03 | 天津大学 | Data drive control method for minimum energy consumption of refrigerating system on basis of SPSA |
| CN104990222A (en) * | 2015-07-15 | 2015-10-21 | 广东美的暖通设备有限公司 | Air conditioner control method and device |
| CN105423668A (en) * | 2015-12-09 | 2016-03-23 | 三菱重工海尔(青岛)空调机有限公司 | Control method for electronic expansion valve |
-
2016
- 2016-09-30 CN CN201610873355.0A patent/CN106338167B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20090151378A1 (en) * | 2005-09-08 | 2009-06-18 | Noriyasu Kawakatsu | Refrigeration System |
| CN101784796A (en) * | 2007-08-17 | 2010-07-21 | 三电有限公司 | System for controlling capacity of variable capacity compressor and display device |
| JP2012202672A (en) * | 2011-03-28 | 2012-10-22 | Mitsubishi Heavy Ind Ltd | Expansion valve control device, heat source machine, and expansion valve control method |
| CN103033004A (en) * | 2011-09-29 | 2013-04-10 | 杭州三花研究院有限公司 | Car air conditioning system electronic expansion valve control method |
| CN104019520A (en) * | 2014-05-20 | 2014-09-03 | 天津大学 | Data drive control method for minimum energy consumption of refrigerating system on basis of SPSA |
| CN104990222A (en) * | 2015-07-15 | 2015-10-21 | 广东美的暖通设备有限公司 | Air conditioner control method and device |
| CN105423668A (en) * | 2015-12-09 | 2016-03-23 | 三菱重工海尔(青岛)空调机有限公司 | Control method for electronic expansion valve |
Non-Patent Citations (1)
| Title |
|---|
| 叶荣，余水秀，赵鸣: "空调系统中电子膨胀阀的控制和应用", 《制冷与空调》 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112344511A (en) * | 2020-10-23 | 2021-02-09 | 烽火通信科技股份有限公司 | Control method, device and system suitable for machine room air conditioner refrigerant flow |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106338167B (en) | 2019-03-22 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105674472B (en) | The refrigeration control method and device of computer room | |
| CN110131811B (en) | Differential pressure control system and method suitable for MAU+FFU+DCC electronic clean room | |
| US20110190946A1 (en) | Method And System Of Energy-Efficient Control For Central Chiller Plant Systems | |
| CN106871332B (en) | One drag two split air conditioner control method and one drag two split air conditioner | |
| EP3438572A1 (en) | Air conditioning system, and control system and control method for air conditioning system | |
| CN108151246A (en) | Air quantity variable air conditioner wind system Optimization of Energy Saving control method and device | |
| CN203396032U (en) | Room temperature control device based on fuzzy self-adaption PID (proportion integration differentiation) | |
| CN104654522A (en) | Control method and control system for variable-frequency chilled water pump | |
| CN103925668A (en) | Direct-current frequency conversion constant-temperature and humidity set achieving condensation heat recovery and heat and humidity separation control method | |
| CN112665112B (en) | Air conditioner, control method thereof and readable storage medium | |
| CN213119341U (en) | Precision temperature control equipment | |
| CN106949596A (en) | Air-conditioner and its modification method can be needed | |
| CN111213013A (en) | Method and system for controlling a valve in an HVAC system | |
| CN106338167A (en) | Method for regulating superheat degree of electronic expansion valve | |
| CN107781946A (en) | The heat-production control method of convertible frequency air-conditioner | |
| CN102538150A (en) | Variable parameter intelligent proportion integration differentiation (PID) linkage control method for multiple air conditioners | |
| CN110470039A (en) | A kind of air conditioner water valve regulation method based on the theory of optimal control | |
| CN105674484A (en) | Control method for heating of water-cooling multiple online machine | |
| CN108444065A (en) | A kind of refrigeration control system of air-conditioner set, method, apparatus and air-conditioner set | |
| CN203413731U (en) | Air-cooling temperature adjustment dehumidifier | |
| CN103134135B (en) | A kind of control method of household air conditioner electronic expansion valve and control system | |
| CN106918125A (en) | Machine leaving air temp control method in a kind of reheat dehumidification system | |
| CN105627529B (en) | Air-conditioner control system and method based on PID controller with changing integration rate type Iterative Algorithm | |
| CN209588306U (en) | A kind of control device of electric expansion valve | |
| CN107704059A (en) | A kind of server power supply radiator structure and its control method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |