CN110332620A - A kind of control method of air cooled heat pump condensation fan - Google Patents

A kind of control method of air cooled heat pump condensation fan Download PDF

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Publication number
CN110332620A
CN110332620A CN201910453570.9A CN201910453570A CN110332620A CN 110332620 A CN110332620 A CN 110332620A CN 201910453570 A CN201910453570 A CN 201910453570A CN 110332620 A CN110332620 A CN 110332620A
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condensation
group
condensation fan
work
opened
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CN201910453570.9A
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CN110332620B (en
Inventor
周金亮
郭德朋
郭建辉
易子龙
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Guangdong Shenling Environmental Systems Co Ltd
Guangdong Shenling Air Conditioning Equipment Co Ltd
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Guangdong Shenling Air Conditioning Equipment Co Ltd
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    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F1/00Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
    • F24F1/06Separate outdoor units, e.g. outdoor unit to be linked to a separate room comprising a compressor and a heat exchanger
    • F24F1/38Fan details of outdoor units, e.g. bell-mouth shaped inlets or fan mountings
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00Control or safety arrangements
    • F24F11/62Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00Control or safety arrangements
    • F24F11/70Control systems characterised by their outputs; Constructional details thereof
    • F24F11/80Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air
    • F24F11/87Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling absorption or discharge of heat in outdoor units
    • F24F11/871Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling absorption or discharge of heat in outdoor units by controlling outdoor fans
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00Control or safety arrangements
    • F24F11/89Arrangement or mounting of control or safety devices
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F2140/00Control inputs relating to system states
    • F24F2140/10Pressure
    • F24F2140/12Heat-exchange fluid pressure

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Fuzzy Systems (AREA)
  • Mathematical Physics (AREA)
  • Signal Processing (AREA)
  • Air Conditioning Control Device (AREA)

Abstract

The present invention relates to refrigeration technology fields, specifically disclose a kind of control method of air cooled heat pump condensation fan, the air cooled heat pump includes several condensation fans, by being first grouped to the condensation fan, same group of condensation fan shares a control node, then grading control is combined to each group according to condensing pressure, realizes that every grade of condensation fan successively puts into or exit one by the combination to different control nodes.The present invention can meet air-conditioner set year round cooling demand by the way that condensation fan is subdivided into Multistage Control, reduce air quantity and significantly change, and the fluctuation of relieving system keeps unit operation more stable.

Description

A kind of control method of air cooled heat pump condensation fan
Technical field
The present invention relates to refrigeration technology fields, and in particular to a kind of control method of air cooled heat pump condensation fan.
Background technique
Air cooled heat pump is the cooling equipment for being widely used in industrial circle, and the refrigeration requirement of industrial nature often has There are perennial, such as electric equipment compartment, craftsmanship computer room occasion.In the design of large-sized wind cooling air-conditioner set, outdoor condensating wind Machine need to configure more axial flow blowers.In winter or when transition season refrigerating operaton, system is to maintain certain high pressure, condensation fan Start and stop easily are frequent, cause refrigeration system parameter fluctuation, compressor emergency shutdown protection can be also inspired when serious.
Summary of the invention
Current condensation fan in winter or aiming at the problem that transition season is easy to appear, the present invention provides a kind of new wind The control method of cold air-conditioner set condensation fan.
The technical solution adopted by the present invention is that a kind of control method of air cooled heat pump condensation fan, the air-cooled sky Adjusting unit includes several condensation fans, and by being first grouped to the condensation fan, same group of condensation fan shares one Then a control node is combined grading control to each group according to condensing pressure, by the combination to different control nodes come Realize that every grade of condensation fan successively puts into or exit one.
The invention proposes a kind of control methods of air cooled heat pump condensation fan, are controlled by being grouped to condensation fan It can be effectively reduced the complexity of system electrical design, meanwhile, the grading control that the present invention uses being capable of air-conditioner set whole year Refrigeration demand reduces system fluctuation to the maximum extent, so that unit be avoided the case where hang-up occur, keeps unit operation more steady It is fixed.
As a preferred solution, in order to reduce the complexity of electrified design, the air-cooled air-conditioning as far as possible Group includes N platform condensation fan, and N platform condensation fan is divided into n group, and n < N by N > 1.
As a preferred solution, in order to farthest reduce the complexity that system electrical designs, meet simultaneously Grading control can reach the requirement for successively putting into or exiting a condensation fan, and this programme reduces packet count as far as possible Amount: as N≤3, condensation fan is divided into two groups;As 3 < N≤7, condensation fan is divided into three groups;It, will as 7 < N≤15 Condensation fan is divided into four groups;As 15 < N≤31, condensation fan is divided into five groups.
As a preferred solution, for realize grouping after, grading control can reach successively put into or exit one it is cold N platform condensation fan is divided into n group by the requirement of solidifying blower, this programme, specifically: I1, I2, I3..., In;InRefer to the cold of n-th group Solidifying blower number;N=I1+I2+I3+…+In, and I1=1, In≤I1+I2+I3+…+In-1+1。
Wherein, InValue rule be: with the increase of N value, InBy 1,2,3,4 ..., (I1+I2+I3+…+In-1+ 1) according to Secondary value.
Work as InGet maximum value (I1+I2+I3+…+In-1+ 1) after, then it is further added by a grouping, that is, increase In+1, In+1 Value still follow In+1≤I1+I2+I3+…+In+1.In the present solution, only working as InWhen being maximized, grouping just will increase Number.
It is exemplified below:
Work as N=2, then I1=1, I2=1;
Work as N=3, then I1=1, I2=2;
Work as N=4, then I1=1, I2=2, I3=1;
Work as N=5, then I1=1, I2=2, I3=2;
Work as N=6, then I1=1, I2=2, I3=3;
Work as N=7, then I1=1, I2=2, I3=4;
Work as N=8, then I1=1, I2=2, I3=4, I4=1;
Work as N=9, then I1=1, I2=2, I3=4, I4=2;
Work as N=10, then I1=1, I2=2, I3=4, I4=3;
……
Work as N=15, then I1=1, I2=2, I3=4, I4=8;
Work as N=16, then I1=1, I2=2, I3=4, I4=8;I5=1.
This programme is a kind of relatively simple preferred grouping scheme, can meet realize every grade of investment or exit one it is cold Under the requirement of solidifying blower, the group number of grouping is minimum, can farthest reduce the complexity of system electrical design.In reality In, restriction has to achieve the effect that according to the packet mode of this programme above-mentioned.For example, as N=8, I1=1, I2=2, I3=2, I4Packet mode as=3 is also divided into 4 groups, can also be realized by combination control every Grade investment exits a condensation fan, can equally reach identical technical effect.
As a preferred solution, when N is equal to 6, condensation fan is divided into three groups, I1=1, I2=2, I3=3.
Wherein, control method specifically: after air-conditioner set operation, detect condensing pressure Pc:
(1) work as Pc< P1When, do not open condensation fan;
(2) work as P1≤Pc< P2When, the 1st group of condensation fan is connected, 1 condensation fan is opened;
(3) work as P2≤Pc< P3When, the 2nd group of condensation fan is connected, 2 condensation fans are opened;
(4) work as P3≤Pc< P4When, the 1st group and the 2nd group of condensation fan is connected, 3 condensation fans are opened;
(5) work as P4≤Pc< P5When, the 1st group and the 3rd group of condensation fan is connected, 4 condensation fans are opened;
(6) work as P5≤Pc< P6When, the 2nd group and the 3rd group of condensation fan is connected, 5 Fans are opened;
(7) work as P6≤Pc< P7When, whole condensation fans is connected, 6 condensation fans are opened.
As a preferred solution, when N is equal to 8, condensation fan is divided into four groups, I1=1, I2=2, I3=4, I4 =1.
Wherein, control method specifically: after air-conditioner set operation, detect condensing pressure Pc:
(1) work as Pc< P1When, do not open condensation fan;
(2) work as P1≤Pc< P2When, the 1st group of condensation fan is connected, 1 condensation fan is opened;
(3) work as P2≤Pc< P3When, the 2nd group of condensation fan is connected, 2 condensation fans are opened;
(4) work as P3≤Pc< P4When, the 1st group and the 2nd group of condensation fan is connected, 3 condensation fans are opened;
(5) work as P4≤Pc< P5When, the 3rd group of condensation fan is connected, 4 condensation fans are opened;
(6) work as P5≤Pc< P6When, the 3rd group and the 4th group of condensation fan is connected, 5 condensation fans are opened;
(8) work as P6≤Pc< P7When, the 2nd group and the 3rd group of condensation fan is connected, 6 condensation fans are opened;
(8) work as P7≤Pc< P8When, the 1st group, the 2nd group and the 3rd group of condensation fan is connected, 7 condensation fans are opened;
(9) work as P8≤Pc< P9When, whole condensation fans is connected, 8 condensation fans are opened.
As a preferred solution, when N is equal to 8, condensation fan is divided into four groups, I1=1, I2=2, I3=2, I4 =3.
Wherein, control method specifically: after air-conditioner set operation, detect condensing pressure Pc:
(1) work as Pc< P1When, do not open condensation fan;
(2) work as P1≤Pc< P2When, the 1st group of condensation fan is connected, 1 condensation fan is opened;
(3) work as P2≤Pc< P3When, the 2nd group of condensation fan is connected, 2 condensation fans are opened;
(4) work as P3≤Pc< P4When, the 1st group and the 2nd group of condensation fan is connected, 3 condensation fans are opened;
(5) work as P4≤Pc< P5When, the 2nd group and the 3rd group of condensation fan is connected, 4 condensation fans are opened;
(6) work as P5≤Pc< P6When, the 3rd group and the 4th group of condensation fan is connected, 5 condensation fans are opened;
(8) work as P6≤Pc< P7When, the 1st group, the 3rd group and the 4th group of condensation fan is connected, 6 condensation fans are opened;
(8) work as P7≤Pc< P8When, the 2nd group, the 3rd group and the 4th group of condensation fan is connected, 7 condensation fans are opened;
(9) work as P8≤Pc< P9When, whole condensation fans is connected, 8 condensation fans are opened.
Compared with prior art, the invention has the benefit that the present invention provides a kind of air cooled heat pump condensating winds The control method of machine can meet air-conditioner set year round cooling demand by the way that condensation fan is subdivided into Multistage Control, reduce air quantity It significantlys change, the fluctuation of relieving system, keeps unit operation more stable.
Detailed description of the invention
Fig. 1 is the arrangement schematic diagram of the condensation fan of embodiment 1.
Fig. 2 is the arrangement schematic diagram of the condensation fan of embodiment 2.
Specific embodiment
Attached drawing of the present invention only for illustration, is not considered as limiting the invention.It is following in order to more preferably illustrate Embodiment, the certain components of attached drawing have omission, zoom in or out, and do not represent the size of actual product;For art technology For personnel, the omitting of some known structures and their instructions in the attached drawings are understandable.
Embodiment 1
Present embodiments provide a kind of control method of air cooled heat pump condensation fan, the air-conditioner set in the present embodiment Including 6 condensation fans (axial flow blower), wherein the arrangement of condensation fan as shown in Figure 1, be referred to as blower 1.~blower 6.. 6 axial flow blowers are arranged 3 electrical wiring contacts, contact 1 control blower 1., contact 2 control blower 2. with blower 3., contact 3 Control blower 4., blower 5. with blower 6..
By the way that 3 electrical wiring contacts are arranged, condensation fan is subdivided into 7 grades of controls, in different operating conditions, is controlled Mode processed is exemplified below.After air-conditioner set operation, condensing pressure P is detectedc:
(1) work as Pc< P1When, do not open condensation fan;
(2) work as P1≤Pc< P2When, make contact 1 opens 1 condensation fan;
(3) work as P2≤Pc< P3When, make contact 2 opens 2 condensation fans;
(4) work as P3≤Pc< P4When, 3 condensation fans are opened in the contact make contact 2+ 1;
(5) work as P4≤Pc< P5When, 4 condensation fans are opened in the contact make contact 1+ 3;
(6) work as P5≤Pc< P6When, 5 condensation fans are opened in the contact make contact 3+ 2;
(7) work as P6≤Pc< P7When, 6 condensation fans are opened in the contact the make contact 3+ contact 2+ 1.
Embodiment 2
A kind of control method of air cooled heat pump condensation fan, the air-conditioner set in the present embodiment include 8 condensating winds Machine (axial flow blower), wherein the arrangement of condensation fan as shown in Fig. 2, be referred to as blower 1.~blower 8..8 axial flow blowers are set Set 4 electrical wiring contacts, contact 1 control blower 1., contact 2 control blower 2. with blower 3., contact 3 control blower 4. with wind Machine 5., contact 4 control blower 6., blower 7. with blower 8..
By the way that 4 electrical wiring contacts are arranged, condensation fan is subdivided into 9 grades of controls, in different operating conditions, is controlled Mode processed is exemplified below.After air-conditioner set operation, condensing pressure P is detectedc:
(1) work as Pc< P1When, do not open condensation fan;
(2) work as P1≤Pc< P2When, make contact 1 opens 1 condensation fan;
(3) work as P2≤Pc< P3When, make contact 2 opens 2 condensation fans;
(4) work as P3≤Pc< P4When, 3 condensation fans are opened in the contact make contact 2+ 1;
(5) work as P4≤Pc< P5When, 4 condensation fans are opened in the contact make contact 2+ 3;
(6) work as P5≤Pc< P6When, 5 condensation fans are opened in the contact make contact 3+ 4;
(7) work as P6≤Pc< P7When, 6 condensation fans are opened in the contact the make contact 3+ contact 4+ 1;
(8) work as P7≤Pc< P8When, 7 condensation fans are opened in the contact the make contact 3+ contact 4+ 2;
(9) work as P8≤Pc< P9When, 8 condensation fans are opened in the contact the make contact 3+ contact the 4+ contact 2+ 1.
Embodiment 3
A kind of control method of air cooled heat pump condensation fan, the air-conditioner set in the present embodiment include 8 condensating winds Machine (axial flow blower), wherein the arrangement of condensation fan as shown in Fig. 2, be referred to as blower 1.~blower 8..8 axial flow blowers are set Set 4 electrical wiring contacts, contact 1 control blower 1., contact 2 control blower 2. with blower 3., contact 3 control blower 4., wind Machine 5., blower 6. with blower 7., contact 4 control blower 8..
By the way that 4 electrical wiring contacts are arranged, condensation fan is subdivided into 9 grades of controls, in different operating conditions, is controlled Mode processed is exemplified below.After air-conditioner set operation, condensing pressure P is detectedc:
(1) work as Pc< P1When, do not open condensation fan;
(2) work as P1≤Pc< P2When, make contact 1 opens 1 condensation fan;
(3) work as P2≤Pc< P3When, make contact 2 opens 2 condensation fans;
(4) work as P3≤Pc< P4When, 3 condensation fans are opened in the contact make contact 2+ 1;
(5) work as P4≤Pc< P5When, make contact 3 opens 4 condensation fans;
(6) work as P5≤Pc< P6When, 5 condensation fans are opened in the contact make contact 3+ 4;
(7) work as P6≤Pc< P7When, 6 condensation fans are opened in the contact make contact 3+ 2;
(8) work as P7≤Pc< P8When, 7 condensation fans are opened in the contact the make contact 3+ contact 2+ 1;
(9) work as P8≤Pc< P9When, 8 condensation fans are opened in the contact the make contact 3+ contact the 2+ contact 1+ 4.
Obviously, the above embodiment of the present invention is only intended to clearly illustrate technical solution of the present invention example, and It is not the restriction to a specific embodiment of the invention.It is all made within the spirit and principle of claims of the present invention Any modifications, equivalent replacements, and improvements etc., should all be included in the scope of protection of the claims of the present invention.

Claims (10)

1. a kind of control method of air cooled heat pump condensation fan, which is characterized in that the air cooled heat pump includes several Platform condensation fan, by being first grouped to the condensation fan, same group of condensation fan shares a control node, then Grading control is combined to each group according to condensing pressure, every grade of condensation fan is realized by the combination to different control nodes Successively put into or exit one.
2. the control method of air cooled heat pump condensation fan according to claim 1, which is characterized in that the air-cooled sky Adjusting unit includes N platform condensation fan, and N platform condensation fan is divided into n group, and n < N by N > 1.
3. the control method of air cooled heat pump condensation fan according to claim 2, which is characterized in that as N≤3, Condensation fan is divided into two groups;As 3 < N≤7, condensation fan is divided into three groups;As 7 < N≤15, condensation fan is divided into Four groups;As 15 < N≤31, condensation fan is divided into five groups.
4. the control method of air cooled heat pump condensation fan according to claim 2 or 3, which is characterized in that N platform is cold Solidifying blower is divided into n group, specifically: I1, I2, I3..., In;InRefer to the condensation fan number of n-th group;N=I1+I2+I3+…+In, And I1=1, In≤I1+I2+I3+…+In-1+1。
5. the control method of air cooled heat pump condensation fan according to claim 2 or 3, which is characterized in that when N is equal to When 6, condensation fan is divided into three groups, I1=1, I2=2, I3=3.
6. the control method of air cooled heat pump condensation fan according to claim 5, which is characterized in that control method tool Body are as follows: after air-conditioner set operation, detect condensing pressure Pc:
(1) work as Pc< P1When, do not open condensation fan;
(2) work as P1≤Pc< P2When, the 1st group of condensation fan is connected, 1 condensation fan is opened;
(3) work as P2≤Pc< P3When, the 2nd group of condensation fan is connected, 2 condensation fans are opened;
(4) work as P3≤Pc< P4When, the 1st group and the 2nd group of condensation fan is connected, 3 condensation fans are opened;
(5) work as P4≤Pc< P5When, the 1st group and the 3rd group of condensation fan is connected, 4 condensation fans are opened;
(6) work as P5≤Pc< P6When, the 2nd group and the 3rd group of condensation fan is connected, 5 condensation fans are opened;
(7) work as P6≤Pc< P7When, whole condensation fans is connected, 6 condensation fans are opened.
7. the control method of air cooled heat pump condensation fan according to claim 2 or 3, which is characterized in that when N is equal to When 8, condensation fan is divided into four groups, I1=1, I2=2, I3=4, I4=1.
8. the control method of air cooled heat pump condensation fan according to claim 7, which is characterized in that control method tool Body are as follows: after air-conditioner set operation, detect condensing pressure Pc:
(1) work as Pc< P1When, do not open condensation fan;
(2) work as P1≤Pc< P2When, the 1st group of condensation fan is connected, 1 condensation fan is opened;
(3) work as P2≤Pc< P3When, the 2nd group of condensation fan is connected, 2 condensation fans are opened;
(4) work as P3≤Pc< P4When, the 1st group and the 2nd group of condensation fan is connected, 3 condensation fans are opened;
(5) work as P4≤Pc< P5When, the 3rd group of condensation fan is connected, 4 condensation fans are opened;
(6) work as P5≤Pc< P6When, the 3rd group and the 4th group of condensation fan is connected, 5 condensation fans are opened;
(7) work as P6≤Pc< P7When, the 2nd group and the 3rd group of condensation fan is connected, 6 condensation fans are opened;
(8) work as P7≤Pc< P8When, the 1st group, the 2nd group and the 3rd group of condensation fan is connected, 7 condensation fans are opened;
(9) work as P8≤Pc< P9When, whole condensation fans is connected, 8 condensation fans are opened.
9. the control method of air cooled heat pump condensation fan according to claim 2, which is characterized in that when N is equal to 8 When, condensation fan is divided into four groups, I1=1, I2=2, I3=2, I4=3.
10. the control method of air cooled heat pump condensation fan according to claim 9, which is characterized in that control method Specifically: after air-conditioner set operation, detect condensing pressure Pc:
(1) work as Pc< P1When, do not open condensation fan;
(2) work as P1≤Pc< P2When, the 1st group of condensation fan is connected, 1 condensation fan is opened;
(3) work as P2≤Pc< P3When, the 2nd group of condensation fan is connected, 2 condensation fans are opened;
(4) work as P3≤Pc< P4When, the 1st group and the 2nd group of condensation fan is connected, 3 condensation fans are opened;
(5) work as P4≤Pc< P5When, the 2nd group and the 3rd group of condensation fan is connected, 4 condensation fans are opened;
(6) work as P5≤Pc< P6When, the 3rd group and the 4th group of condensation fan is connected, 5 condensation fans are opened;
(7) work as P6≤Pc< P7When, the 1st group, the 3rd group and the 4th group of condensation fan is connected, 6 condensation fans are opened;
(8) work as P7≤Pc< P8When, the 2nd group, the 3rd group and the 4th group of condensation fan is connected, 7 condensation fans are opened;
(9) work as P8≤Pc< P9When, whole condensation fans is connected, 8 condensation fans are opened.
CN201910453570.9A 2019-05-28 2019-05-28 Control method of condensing fan of air-cooled air conditioning unit Active CN110332620B (en)

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CN115200175A (en) * 2021-04-12 2022-10-18 浙江盾安机电科技有限公司 Air conditioning system and control method thereof

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CN113701371A (en) * 2021-08-03 2021-11-26 中国核电工程有限公司 Direct evaporation type refrigerating unit and control method thereof

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