CN102252399A - Compressor energy regulating and controlling method of modular cold/hot water unit - Google Patents
Compressor energy regulating and controlling method of modular cold/hot water unit Download PDFInfo
- Publication number
- CN102252399A CN102252399A CN2011101232106A CN201110123210A CN102252399A CN 102252399 A CN102252399 A CN 102252399A CN 2011101232106 A CN2011101232106 A CN 2011101232106A CN 201110123210 A CN201110123210 A CN 201110123210A CN 102252399 A CN102252399 A CN 102252399A
- Authority
- CN
- China
- Prior art keywords
- temperature
- compressor
- interval
- value
- tinp
- 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.)
- Withdrawn
Links
Images
Landscapes
- Air Conditioning Control Device (AREA)
Abstract
The invention discloses a compressor unit control method, and aims to provide a compressor energy regulating and controlling method of a modular cold/hot water unit, wherein the compressor energy regulating and controlling method is stable for control, high in control precision and capable of effectively ensuring the working life of the unit. In the invention, the running states of compressors are adjusted together, according to the average water inlet temperature and the water inlet temperature variation rate of sequentially numbered module groups between a water inlet path and a water outlet path, and the compressors can be controlled to start and stop according to a certain order at certain time interval, so that the compressors are started and stopped more smoothly and the impact on the grid is reduced; in an operation process, the number of the compressors to be run can be determined more accurately according to the different working conditions, so that the frequently start and stop phenomena of the compressors are reduced and the start loss is reduced; meanwhile, the compressor units can be ensured to meet load demands faster and more accurately, thus the advantages of saving energy and prolonging the lives of units are achieved. The compressor energy regulating and controlling method disclosed by the invention can be widely applied in the cold/hot water unit control field.
Description
Technical field
The present invention relates to a kind of modularization cold/hot water machine set compressor can control method.
Background technology
Modularization cold (heat) water unit is a kind of large-scale central air-conditioning unit that is widely used in occasions such as factory, office block, hotel.Be that air-conditioning unit by many little colds combines, make things convenient for dilatation, the occasion that the most suitable load is changeable is used very extensive.Traditional control technology is to the bad adaptability of different operating modes, and control hysteresis causes air-conditioning unit frequent start-stop, is far more than that many module units start simultaneously, cause the serious impact to electrical network.The tradition control method is that multisection type is regulated, and according to the quantity design temperature deviation of compressor, when variations in temperature, controls the quantity of the compressor that puts into operation according to the control program of finishing at the design temperature place.The control of this method is simple, and control accuracy is low, and the easy frequent start-stop of unit so just is difficult to satisfy control requirement, production technology demand and the air conditioning comfortableness of variable working condition.
Summary of the invention
Technical problem to be solved by this invention is to overcome the deficiencies in the prior art, provide a kind of control stable, control accuracy is high, can guarantee effectively that the modularization cold/hot water machine set compressor of unit working life can control method.
The technical solution adopted in the present invention is: modularization cold/hot water machine set compressor energy control method of the present invention, wherein said modularization cold/hot water unit comprises the plurality of modules group, described plurality of modules group numbers in order and is connected to total water inlet water route and total water outlet water route, each described module group comprises two compressors, the water inlet end of described each module group is provided with temperature sensor, described temperature sensor is connected with the controller that is arranged on the periphery, described controller also is connected with control panel, and described modularization cold/hot water machine set compressor can may further comprise the steps by control method:
(a) set refrigeration inflow temperature value Tc, heat inflow temperature value Th and rate of temperature change § by described control panel, and Tc value, Th value and the § value set are kept in the described controller;
(b) set the interval Δ Tcn of several cryogenic temperatures according to the Tc value of setting among the step a, wherein n is a variable, sets several according to the Th value of setting among the step a and heats temperature range Δ Thn, and wherein n is a variable;
(c) detect inflow temperature Tin and detected inflow temperature Tin1 value is fed back to described controller by described temperature sensor;
(d) ts detected inflow temperature Tin once more and detected inflow temperature Tin2 value was fed back to described controller blanking time;
(e) calculate average inflow temperature Tinp: according to the detected inflow temperature value of several module groups, after removal maximum temperature value and the minimum temperature value, remaining temperature value is averaged, obtain average inflow temperature Tinp; When having only a module group, the inflow temperature of directly getting this module group is average inflow temperature Tinp; When having only two module groups, the average of then directly getting these two detected temperature values of module group is average inflow temperature Tinp;
(f) calculate actual temperature change speed § n as follows according to detected Tin1 value of step c and the detected Tin2 value of steps d,
During refrigeration, § n=(Tin1-Tin2)/ts,
When heating, § n=(Tin2-Tin1)/ts;
(g) the actual temperature change speed § n that calculates of average inflow temperature Tinp that calculates according to step e and step f, the temperature range that integrating step b sets, deviation situation between the contrast residing temperature range of inflow temperature Tin and actual temperature change speed § n and the design temperature rate of change §, the quantity of judgement compressor operating;
(h) compressor by described controller change unit drops into quantity;
(i) return steps d and continue to detect inflow temperature Tin, in conjunction with preceding once detected Tin value, execution in step e.
The number of the interval Δ Tcn of the cryogenic temperature of setting among the described step b is five with the number that heats temperature range Δ Thn, be that n gets 5, the cryogenic temperature interval is respectively Δ Tc1, Δ Tc2, Δ Tc3, Δ Tc4, Δ Tc5, heat temperature range and be respectively Δ Th1, Δ Th2, Δ Th3, Δ Th4, Δ Th5, cryogenic temperature is interval as follows with the concrete distribution situation that heats temperature range:
During refrigeration, Δ Tc1 〉=Tc+t1; Tc+t2＜Δ Tc2＜Tc+t1; Tc-t3≤Δ Tc3≤Tc+t2; Tc-t4＜Δ Tc4＜Tc-t3; Δ Tc5≤Tc-t4; T1, t2, t3, t4 are the numerical value of expression temperature, t1＞t2 wherein, t3＜t4;
When heating, Δ Th1≤Th-t5; Th-t5＜Δ Th2＜Th-t6; Th-t6≤Δ Th3≤Th+t7; Th+t7＜Δ Th4＜Th+t8; Δ Th5 〉=Th+t8; T5, t6, t7, t8 are the numerical value of expression temperature, t5＞t6 wherein, t7＜t8.
Meeting when the cold/hot water unit under the situation of start, the compressor start and stop order in the module group is undertaken by following principle:
1) set numbering n for described plurality of modules group, n is a variable, and promptly first module group is that 1, the second module group is that 2, the n module groups are n, and wherein the span of n is n=1～16;
2) be spaced apart Ts+ Δ 1 start-up time between the first compressor and second compressor, Δ 1 is the numerical value of expression time;
3) all compressors are divided into 4 parts, during startup, the time interval is respectively Ts+ Δ 1, Ts+ Δ 2, Ts+ Δ 3, Ts+ Δ 4 between the adjacent part, Δ 2, Δ 3, Δ 4 are the numerical value of expression time, being the compressor sum down rounds divided by 4 integral multiple sequence number, be in the compressor of these sequence numbers and be followed successively by Ts+ Δ 2, Ts+ Δ 3, Ts+ Δ 4 with adjacent compressor start time interval thereafter, remaining compressor start time interval is Ts;
4) when whole modularization cold/hot water unit moves for the first time, the startup that numbers in order of each compressor stops according to opening earlier earlier afterwards, stops to open earlier to such an extent that principle operates earlier;
I. during refrigeration,
When average inflow temperature Tinp is in cryogenic temperature interval Δ Tc1,
1. if § n≤during §, each compressor starts successively by above-mentioned start and stop principle order;
2. if § n＞during §, keep the number of compressors of having opened constant;
When average inflow temperature Tinp is in cryogenic temperature interval Δ Tc2,
1. if § n＞during §, every time T1 close compressor successively of crossing;
2. if 0.4 §≤§ n≤during §, the number of compressors that is held open is constant;
3. if § n＜during 0.4 §, each compressor starts successively by above-mentioned start and stop principle order;
When average inflow temperature Tinp was in cryogenic temperature interval Δ Tc3, compressor was opened quantity and is remained unchanged;
When average inflow temperature Tinp is in cryogenic temperature interval Δ Tc4, every time T1 close compressor successively of crossing;
When average inflow temperature Tinp was in cryogenic temperature interval Δ Tc5, compressor chamber interval T2 is emergency shutdown successively;
II. when heating,
When average inflow temperature Tinp is in cryogenic temperature interval Δ Th1,
1. if § n≤during §, each compressor starts successively by above-mentioned start and stop principle order;
2. if § n＞during §, keep the number of compressors of having opened constant;
When average inflow temperature Tinp is in cryogenic temperature interval Δ Th2,
1. if § n＞during §, every time T1 close compressor successively of crossing;
2. if 0.4 §≤§ n≤during §, the number of compressors that is held open is constant;
3. if § n＜during 0.4 §, blanking time, Ts opened compressor successively;
When average inflow temperature Tinp was in cryogenic temperature interval Δ Th3, compressor was opened quantity and is remained unchanged;
When average inflow temperature Tinp is in cryogenic temperature interval Δ Th4, every time T1 close compressor successively of crossing;
When average inflow temperature Tinp was in cryogenic temperature interval Δ Th5, compressor chamber interval T2 is emergency shutdown successively.
Described controller is a Programmable Logic Controller.
The invention has the beneficial effects as follows: because the present invention utilizes temperature sensor senses to arrive the temperature of water inlet, come compressor input quantity in the module group is controlled according to inflow temperature and inflow temperature rate of change, and the control compressor chamber is every certain hour start and stop sequentially, so avoided the phenomenon of high frequent start and stop in the conventional method, the compressor start and stop logic of setting according to the present invention, during the unit starting operation, can start at interval successively, thereby improve impact, play cushioning effect electrical network.And in the running, can move the quantity of its compressor more accurately according to different operating modes, and reduce the phenomenon of high frequent start and stop, also just reduced the startup loss; Make simultaneously Compressor Group faster, adapt to workload demand more accurately, thereby energy savings prolongs life-span of unit.
Description of drawings
Fig. 1 is a structure simplified diagram of the present invention;
Fig. 2 is a Compressor Group start and stop principle schematic diagram.
The specific embodiment
The present invention is that a kind of modularization cold/hot water machine set compressor can control method.In the present embodiment, as shown in Figure 1, described modularization cold/hot water unit comprises nine module groups 1.In the present invention, the number of described module group 1 can not be more than 16.Described module group 1 numbers in order and is connected to total water inlet water route 2 and total water outlet water route 3, each described module group 1 comprises two compressors 41,42, the water inlet end of described each module group 1 is provided with temperature sensor 5, described temperature sensor 5 is connected with the controller that is arranged on the periphery, described controller is a Programmable Logic Controller, and described controller also is connected with control panel.Described modularization cold/hot water machine set compressor can may further comprise the steps by control method:
(a) set refrigeration inflow temperature value Tc, heat inflow temperature value Th and rate of temperature change § by described control panel, and Tc value, Th value and the § value set be kept in the described controller, in the present embodiment, set Tc=12 ℃, Th=40 ℃, §=0.5 ℃/min;
(b) set the interval Δ Tcn of five cryogenic temperatures according to the Tc value of setting among the step a, wherein n is a variable, and the n value is 5, and the cryogenic temperature interval is respectively Δ Tc1, Δ Tc2, Δ Tc3, Δ Tc4, Δ Tc5; Set five according to the Th value of setting among the step a and heat temperature range Δ Thn, wherein n is a variable, and the n value is 5, heats temperature range and is respectively Δ Th1, Δ Th2, Δ Th3, Δ Th4, Δ Th5;
Cryogenic temperature is interval as follows with the concrete distribution situation that heats temperature range:
During refrigeration, Δ Tc1 〉=Tc+t1; Tc+t2＜Δ Tc2＜Tc+t1; Tc-t3≤Δ Tc3≤Tc+t2; Tc-t4＜Δ Tc4＜Tc-t3; Δ Tc5≤Tc-t4; T1, t2, t3, t4 are the numerical value of expression temperature, t1＞t2 wherein, and t3＜t4 in the present embodiment, gets t1=4, t2=1, t3=1, t4=2.5, the unit of t1, t2, t3, t4 is ℃, and Tc is set at 12 ℃, and promptly the cryogenic temperature interval is as follows,
ΔTc1≥16℃；?13℃＜ΔTc2＜16℃；11℃≤ΔTc3≤13℃；9.5℃＜ΔTc4＜11℃；ΔTc5≤9.5℃；
When heating, Δ Th1≤Th-t5; Th-t5＜Δ Th2＜Th-t6; Th-t6≤Δ Th3≤Th+t7; Th+t7＜Δ Th4＜Th+t8; Δ Th5 〉=Th+t8; T5, t6, t7, t8 are the numerical value of expression temperature, t5＞t6 wherein, and t7＜t8 gets t5=4 in the present embodiment, t6=1, t7=1, t8=2.5, the unit of t5, t6, t7, t8 is ℃, and Th is set at 40 ℃, and it is as follows promptly to heat temperature range,
ΔTh1≤36℃；36℃＜ΔTh2＜39℃；39℃≤ΔTh3≤41℃；41℃＜ΔTh4＜42.5℃；ΔTh5≥42.5℃；
(c) detect inflow temperature Tin and detected inflow temperature Tin1 value is fed back to described controller by described temperature sensor;
(d) ts detected inflow temperature Tin once more and detected inflow temperature Tin2 value was fed back to described controller blanking time, in the present embodiment, got the ts value and was 1min;
(e) calculate average inflow temperature Tinp: according to the detected inflow temperature value of module group, after removal maximum temperature value and the minimum temperature value, remaining temperature value is averaged, obtain average inflow temperature Tinp; When having only a module group, the inflow temperature of directly getting this module group is average inflow temperature Tinp; When having only two module groups, the average of then directly getting these two detected temperature values of module group is average inflow temperature Tinp;
(f) calculate actual temperature change speed § n as follows according to detected Tin1 value of step c and the detected Tin2 value of steps d,
During refrigeration, § n=(Tin1-Tin2)/ts, ts value 1min,
When heating, § n=(Tin2-Tin1)/ts, ts value 1min;
(g) the actual temperature change speed § n that calculates of average inflow temperature Tinp that calculates according to step e and step f, the temperature range that integrating step b sets, deviation situation between the contrast residing temperature range of inflow temperature Tin and actual temperature change speed § n and the design temperature rate of change §, the quantity of judgement compressor operating;
(h) compressor by described controller change unit drops into quantity;
(i) return steps d and continue to detect inflow temperature Tin, in conjunction with preceding once detected Tin value, execution in step e.
Meeting when the cold/hot water unit under the situation of start, the compressor start and stop order in the module group is undertaken by following principle:
1) set numbering n for described nine module groups, the n value is 9, and n is a variable, and promptly first module group is that 1, the second module group is 2 ..., the 9th module group is 9;
2) be spaced apart Ts+ Δ 1 start-up time between the first compressor and second compressor, Δ 1 is the numerical value of expression time, and in the present embodiment, Δ 1 value is 2min;
3) all compressors are divided into 4 parts, during startup, the time interval is respectively Ts+ Δ 1, Ts+ Δ 2, Ts+ Δ 3, Ts+ Δ 4 between the adjacent part, Δ 2, Δ 3, Δ 4 are the numerical value of expression time, be the compressor sum divided by 4 integral multiple sequence number, down round, be in the compressor of these sequence numbers and adjacent compressor start time interval is followed successively by Ts+ Δ 2, Ts+ Δ 3, Ts+ Δ 4 thereafter, remaining compressor start time interval is Ts, in the present embodiment, set Δ 2=1min, Δ 3=3min, Δ 4=5min; Be provided with nine module groups in the present embodiment, then have 18 compressors, 18/4=4.5, except that first, needing to adjust start-up time compressor sequence number at interval thereafter is 4.5 multiple, is followed successively by 4.5,9,13.5, after down rounding, be 4,9,13, the concrete startup at interval as shown in Figure 2, all the other startups that are in the compressor of other sequence number position are defaulted as Ts blanking time;
4) when whole modularization cold/hot water unit moves for the first time, the startup that numbers in order of each compressor operates according to opening earlier the principle of stopping, stopping earlier to open earlier earlier afterwards;
I. during refrigeration,
When average inflow temperature Tinp is in cryogenic temperature interval Δ Tc1,
1. if § n≤during §, each compressor starts successively by above-mentioned start and stop principle order;
2. if § n＞during §, keep the number of compressors of having opened constant;
When average inflow temperature Tinp is in cryogenic temperature interval Δ Tc2,
1. if § n＞during §, every time T1 close compressor successively of crossing, in the present embodiment, T1=5min;
2. if 0.4 §≤§ n≤during §, the number of compressors that is held open is constant;
3. if § n＜during 0.4 §, each compressor starts successively by above-mentioned start and stop principle order;
When average inflow temperature Tinp was in cryogenic temperature interval Δ Tc3, compressor was opened quantity and is remained unchanged;
When average inflow temperature Tinp is in cryogenic temperature interval Δ Tc4, every time T1 close compressor successively of crossing, in the present embodiment, T1=5min;
When average inflow temperature Tinp was in cryogenic temperature interval Δ Tc5, compressor chamber interval T2 is emergency shutdown successively, in the present embodiment, and T2=2min;
II. when heating,
When average inflow temperature Tinp is in cryogenic temperature interval Δ Th1,
1. if § n≤during §, each compressor starts successively by above-mentioned start and stop principle order;
2. if § n＞during §, keep the number of compressors of having opened constant;
When average inflow temperature Tinp is in cryogenic temperature interval Δ Th2,
1. if § n＞during §, every time T1 close compressor successively of crossing, the same with the situation of refrigeration here, T1=5min;
2. if 0.4 §≤§ n≤during §, the number of compressors that is held open is constant;
3. if § n＜during 0.4 §, blanking time, Ts opened compressor successively;
When average inflow temperature Tinp was in cryogenic temperature interval Δ Th3, compressor was opened quantity and is remained unchanged;
When average inflow temperature Tinp is in cryogenic temperature interval Δ Th4, every time T1 close compressor successively, T1=5min of crossing;
When average inflow temperature Tinp was in cryogenic temperature interval Δ Th5, compressor chamber interval T2 is emergency shutdown successively, and is identical during with refrigeration, sets T2=2min.
For example, under refrigerating state, if this moment, detected average inflow temperature was 14 ℃, ts=1min after the time detected average inflow temperature be 14.1 ℃, average inflow temperature is in the interval Δ Tc2 of cryogenic temperature, § n=-0.1 ℃/min＜0.4 §=0.2 ℃/min then, each compressor starts successively by above-mentioned start and stop principle order; If detected average inflow temperature is 13.7 ℃, detected average inflow temperature is 14.3 ℃ before the ts=1min, average inflow temperature is in the interval Δ Tc2 of cryogenic temperature, and § n=0.6 ℃/min＞§=0.5 ℃/min, then every time T1=5min close compressor successively of crossing.
Under the state of heating, if this moment, detected average inflow temperature was 36.8 ℃, ts=1min after the time detected average inflow temperature be 38.4 ℃, average inflow temperature is in and heats temperature range Δ Th2, § n=1.6 ℃/min＞§=0.5 ℃/min, then every time T1=5min close compressor successively of crossing; If detected average inflow temperature is 39.5 ℃, detected average inflow temperature is 40.2 ℃ before the ts=1min, and average inflow temperature is in and heats temperature range Δ Th3, and then compressor unlatching quantity remains unchanged.
Certainly, temperature value in the foregoing description and time value can be set arbitrarily as required, are not limited to data among the embodiment.
The compressor start and stop logic of setting according to the present invention during the unit starting operation, can start successively at interval, thereby improves the impact to electrical network, plays cushioning effect.And in the running, can move the quantity of its compressor more accurately according to different operating modes, and reduce the phenomenon of high frequent start and stop, also just reduced the startup loss; Make simultaneously Compressor Group faster, adapt to workload demand more accurately, thereby energy savings prolongs life-span of unit.
The present invention can be widely used in cold/hot water unit control field.
Claims (4)
1. a modularization cold/hot water machine set compressor can control method, described modularization cold/hot water unit comprises plurality of modules group (1), described plurality of modules group (1) numbers in order and is connected to total water inlet water route (2) and total water outlet water route (3), each described module group (1) comprises two compressors (41,42), the water inlet end of described each module group (1) is provided with temperature sensor (5), described temperature sensor (5) is connected with the controller that is arranged on the periphery, described controller also is connected with control panel, it is characterized in that described modularization cold/hot water machine set compressor can may further comprise the steps by control method:
Set refrigeration inflow temperature value Tc, heat inflow temperature value Th and rate of temperature change § by described control panel, and Tc value, Th value and the § value set are kept in the described controller;
Set the interval Δ Tcn of several cryogenic temperatures according to the Tc value of setting among the step a, wherein n is a variable, sets several according to the Th value of setting among the step a and heats temperature range Δ Thn, and wherein n is a variable;
Detect inflow temperature Tin and detected inflow temperature Tin1 value is fed back to described controller by described temperature sensor;
Ts detected inflow temperature Tin once more and detected inflow temperature Tin2 value was fed back to described controller blanking time;
Calculate average inflow temperature Tinp: according to the detected inflow temperature value of several module groups, after removal maximum temperature value and the minimum temperature value, remaining temperature value is averaged, obtain average inflow temperature Tinp; When having only a module group, the inflow temperature of directly getting this module group is average inflow temperature Tinp; When having only two module groups, the average mean of then directly getting these two detected temperature values of module group is average inflow temperature Tinp;
Calculate actual temperature change speed § n as follows according to detected Tin1 value of step c and the detected Tin2 value of steps d,
During refrigeration, § n=(Tin1-Tin2)/ts,
When heating, § n=(Tin2-Tin1)/ts;
The actual temperature change speed § n that average inflow temperature Tinp that calculates according to step e and step f calculate, the temperature range that integrating step b sets, deviation situation between the contrast residing temperature range of inflow temperature Tin and actual temperature change speed § n and the design temperature rate of change §, the quantity of judgement compressor operating;
The compressor that is changed unit by described controller drops into quantity;
Return steps d and continue to detect inflow temperature Tin, in conjunction with preceding once detected Tin value, execution in step e.
2. modularization cold/hot water machine set compressor energy control method according to claim 1, it is characterized in that, the number of the interval Δ Tcn of the cryogenic temperature of setting among the described step b is five with the number that heats temperature range Δ Thn, be that n gets 5, the cryogenic temperature interval is respectively Δ Tc1, Δ Tc2, Δ Tc3, Δ Tc4, Δ Tc5, heat temperature range and be respectively Δ Th1, Δ Th2, Δ Th3, Δ Th4, Δ Th5, cryogenic temperature is interval as follows with the concrete distribution situation that heats temperature range:
During refrigeration, Δ Tc1 〉=Tc+t1; Tc+t2＜Δ Tc2＜Tc+t1; Tc-t3≤Δ Tc3≤Tc+t2; Tc-t4＜Δ Tc4＜Tc-t3; Δ Tc5≤Tc-t4; T1, t2, t3, t4 are the numerical value of expression temperature, t1＞t2 wherein, t3＜t4;
When heating, Δ Th1≤Th-t5; Th-t5＜Δ Th2＜Th-t6; Th-t6≤Δ Th3≤Th+t7; Th+t7＜Δ Th4＜Th+t8; Δ Th5 〉=Th+t8; T5, t6, t7, t8 are the numerical value of expression temperature, t5＞t6 wherein, t7＜t8.
3. modularization cold/hot water machine set compressor energy control method according to claim 2 is characterized in that, is meeting when the cold/hot water unit under the situation of start, and the compressor start and stop order in the module group is undertaken by following principle:
Set numbering n for described plurality of modules group, n is a variable, and promptly first module group is that 1, the second module group is that 2, the n module groups are n, and wherein the span of n is n=1～16;
Be spaced apart Ts+ Δ 1 start-up time between the first compressor and second compressor, and Δ 1 is the numerical value of expression time;
All compressors are divided into 4 parts, during startup, the time interval is respectively Ts+ Δ 1, Ts+ Δ 2, Ts+ Δ 3, Ts+ Δ 4 between the adjacent part, Δ 2, Δ 3, Δ 4 are the numerical value of expression time, be the compressor sum divided by 4 integral multiple sequence number, down round, be in the compressor of these sequence numbers and be followed successively by Ts+ Δ 2, Ts+ Δ 3, Ts+ Δ 4 with adjacent compressor start time interval thereafter, remaining compressor start time interval is Ts;
When whole modularization cold/hot water unit moved for the first time, the startup that numbers in order of each compressor stopped according to opening earlier earlier afterwards, stops to open earlier to such an extent that principle operates earlier;
I. during refrigeration,
When average inflow temperature Tinp is in cryogenic temperature interval Δ Tc1,
If § n≤during §, each compressor starts successively by above-mentioned start and stop principle order;
If § n＞during §, keep the number of compressors of having opened constant;
When average inflow temperature Tinp is in cryogenic temperature interval Δ Tc2,
If § n＞and during §, every time T1 close compressor successively of crossing;
If 0.4 §≤§ n≤during §, the number of compressors that is held open is constant;
If § n＜during 0.4 §, each compressor starts successively by above-mentioned start and stop principle order;
When average inflow temperature Tinp was in cryogenic temperature interval Δ Tc3, compressor was opened quantity and is remained unchanged;
When average inflow temperature Tinp is in cryogenic temperature interval Δ Tc4, every time T1 close compressor successively of crossing;
When average inflow temperature Tinp was in cryogenic temperature interval Δ Tc5, compressor chamber interval T2 is emergency shutdown successively;
II. when heating,
When average inflow temperature Tinp is in cryogenic temperature interval Δ Th1,
If § n≤during §, each compressor starts successively by above-mentioned start and stop principle order;
If § n＞during §, keep the number of compressors of having opened constant;
When average inflow temperature Tinp is in cryogenic temperature interval Δ Th2,
If § n＞and during §, every time T1 close compressor successively of crossing;
If 0.4 §≤§ n≤during §, the number of compressors that is held open is constant;
If § n＜during 0.4 §, blanking time, Ts opened compressor successively;
When average inflow temperature Tinp was in cryogenic temperature interval Δ Th3, compressor was opened quantity and is remained unchanged;
When average inflow temperature Tinp is in cryogenic temperature interval Δ Th4, every time T1 close compressor successively of crossing;
When average inflow temperature Tinp was in cryogenic temperature interval Δ Th5, compressor chamber interval T2 is emergency shutdown successively.
4. modularization cold/hot water machine set compressor energy control method according to claim 1, it is characterized in that: described controller is a Programmable Logic Controller.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011101232106A CN102252399A (en) | 2011-05-13 | 2011-05-13 | Compressor energy regulating and controlling method of modular cold/hot water unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011101232106A CN102252399A (en) | 2011-05-13 | 2011-05-13 | Compressor energy regulating and controlling method of modular cold/hot water unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102252399A true CN102252399A (en) | 2011-11-23 |
Family
ID=44979833
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011101232106A Withdrawn CN102252399A (en) | 2011-05-13 | 2011-05-13 | Compressor energy regulating and controlling method of modular cold/hot water unit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102252399A (en) |
Cited By (24)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102536767A (en) * | 2012-01-04 | 2012-07-04 | 青岛海尔空调电子有限公司 | Compressor staring and stopping control method for water-cooling compressor set with compressors |
| CN103375878A (en) * | 2012-04-26 | 2013-10-30 | 上海宝信软件股份有限公司 | Group control method for central air conditioning refrigerating unit |
| CN104748308A (en) * | 2015-03-30 | 2015-07-01 | 南京天加空调设备有限公司 | Control method for loading and load shedding of optimized module machine system |
| CN105042968A (en) * | 2015-06-11 | 2015-11-11 | 广州市设计院 | Control method for high-efficiency operation of multi-compressor energy-step-utilization water-heating unit of water-to-water heat pump |
| CN106288232A (en) * | 2016-09-27 | 2017-01-04 | 珠海格力电器股份有限公司 | A kind of air conditioner cold water machine set system on off control method and system |
| CN106352637A (en) * | 2016-11-28 | 2017-01-25 | 重庆美的通用制冷设备有限公司 | Air conditioner, and control method and control device thereof |
| CN106953138A (en) * | 2017-05-11 | 2017-07-14 | 厦门金龙联合汽车工业有限公司 | A kind of electrokinetic cell water chiller system and its temperature difference intelligent control method |
| CN107238174A (en) * | 2017-05-27 | 2017-10-10 | 珠海格力电器股份有限公司 | The control method and device of compressor frequency |
| CN107490151A (en) * | 2017-09-06 | 2017-12-19 | 重庆美的通用制冷设备有限公司 | Water chiller-heater unit, air-conditioning system and its energy control method |
| CN107576106A (en) * | 2017-08-17 | 2018-01-12 | 广东美的暖通设备有限公司 | Water chiller-heater unit and its startup control method and device |
| CN108105964A (en) * | 2017-12-11 | 2018-06-01 | 珠海格力电器股份有限公司 | Startup method, system, scheduler and the air-conditioning of frequency converter sets |
| RU2659993C1 (en) * | 2017-08-28 | 2018-07-04 | Общество с ограниченной ответственностью "Научно-технический комплекс "Криогенная техника" | Method of management of temperature-humidity system |
| CN110375419A (en) * | 2019-07-10 | 2019-10-25 | 珠海格力电器股份有限公司 | Lower water temperature equipment and its control method, air-conditioning and water heater |
| CN110567124A (en) * | 2019-09-19 | 2019-12-13 | 南京天加环境科技有限公司 | Energy adjusting method of modular water machine |
| CN111102691A (en) * | 2019-12-17 | 2020-05-05 | 青岛海信日立空调系统有限公司 | Module combined air conditioning system |
| CN111678255A (en) * | 2020-06-03 | 2020-09-18 | 青岛海信日立空调系统有限公司 | Air source heat pump unit |
| CN112005792A (en) * | 2020-09-24 | 2020-12-01 | 延安大学 | Agricultural greenhouse intelligent temperature control system |
| CN112413854A (en) * | 2020-12-18 | 2021-02-26 | 珠海格力电器股份有限公司 | Temperature control method and device and air conditioning equipment |
| CN112432324A (en) * | 2020-11-16 | 2021-03-02 | 海信（广东）空调有限公司 | Load control method and device and air conditioner |
| CN112460770A (en) * | 2020-11-20 | 2021-03-09 | 珠海格力电器股份有限公司 | Multi-module unit and control method and device thereof, storage medium and processor |
| CN112678006A (en) * | 2020-11-30 | 2021-04-20 | 山东朗进科技股份有限公司 | Cold quantity adjusting and controlling method for multi-compressor air conditioning unit and air conditioning unit for railway vehicle |
| CN113203231A (en) * | 2021-05-07 | 2021-08-03 | 广州市华德工业有限公司 | Energy adjusting method and device of unit and unit |
| CN113881557A (en) * | 2021-10-18 | 2022-01-04 | 北京中鼎恒业科技股份有限公司 | Fermentation system and fermentation cylinder based on thing networking |
| CN114135988A (en) * | 2021-11-15 | 2022-03-04 | 珠海格力电器股份有限公司 | Control method and device of modular air conditioning system, controller and air conditioning system |
-
2011
- 2011-05-13 CN CN2011101232106A patent/CN102252399A/en not_active Withdrawn
Cited By (31)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102536767B (en) * | 2012-01-04 | 2014-12-03 | 青岛海尔空调电子有限公司 | Compressor staring and stopping control method for water-cooling compressor set with compressors |
| CN102536767A (en) * | 2012-01-04 | 2012-07-04 | 青岛海尔空调电子有限公司 | Compressor staring and stopping control method for water-cooling compressor set with compressors |
| CN103375878A (en) * | 2012-04-26 | 2013-10-30 | 上海宝信软件股份有限公司 | Group control method for central air conditioning refrigerating unit |
| CN103375878B (en) * | 2012-04-26 | 2016-07-06 | 上海宝信软件股份有限公司 | A kind of central air-conditioning freezing unit group control method |
| CN104748308B (en) * | 2015-03-30 | 2017-10-20 | 南京天加空调设备有限公司 | The module machine system loads and the control method of off-load of a kind of optimization |
| CN104748308A (en) * | 2015-03-30 | 2015-07-01 | 南京天加空调设备有限公司 | Control method for loading and load shedding of optimized module machine system |
| CN105042968A (en) * | 2015-06-11 | 2015-11-11 | 广州市设计院 | Control method for high-efficiency operation of multi-compressor energy-step-utilization water-heating unit of water-to-water heat pump |
| CN106288232A (en) * | 2016-09-27 | 2017-01-04 | 珠海格力电器股份有限公司 | A kind of air conditioner cold water machine set system on off control method and system |
| CN106288232B (en) * | 2016-09-27 | 2018-05-18 | 珠海格力电器股份有限公司 | A kind of air conditioner cold water machine set system start-up and shut-down control method and system |
| CN106352637A (en) * | 2016-11-28 | 2017-01-25 | 重庆美的通用制冷设备有限公司 | Air conditioner, and control method and control device thereof |
| CN106953138A (en) * | 2017-05-11 | 2017-07-14 | 厦门金龙联合汽车工业有限公司 | A kind of electrokinetic cell water chiller system and its temperature difference intelligent control method |
| CN107238174A (en) * | 2017-05-27 | 2017-10-10 | 珠海格力电器股份有限公司 | The control method and device of compressor frequency |
| CN107238174B (en) * | 2017-05-27 | 2019-11-08 | 珠海格力电器股份有限公司 | The control method and device of compressor frequency |
| CN107576106A (en) * | 2017-08-17 | 2018-01-12 | 广东美的暖通设备有限公司 | Water chiller-heater unit and its startup control method and device |
| CN107576106B (en) * | 2017-08-17 | 2019-12-27 | 广东美的暖通设备有限公司 | Cold and hot water unit and starting control method and device thereof |
| RU2659993C1 (en) * | 2017-08-28 | 2018-07-04 | Общество с ограниченной ответственностью "Научно-технический комплекс "Криогенная техника" | Method of management of temperature-humidity system |
| CN107490151A (en) * | 2017-09-06 | 2017-12-19 | 重庆美的通用制冷设备有限公司 | Water chiller-heater unit, air-conditioning system and its energy control method |
| CN108105964A (en) * | 2017-12-11 | 2018-06-01 | 珠海格力电器股份有限公司 | Startup method, system, scheduler and the air-conditioning of frequency converter sets |
| CN110375419A (en) * | 2019-07-10 | 2019-10-25 | 珠海格力电器股份有限公司 | Lower water temperature equipment and its control method, air-conditioning and water heater |
| CN110567124A (en) * | 2019-09-19 | 2019-12-13 | 南京天加环境科技有限公司 | Energy adjusting method of modular water machine |
| CN111102691A (en) * | 2019-12-17 | 2020-05-05 | 青岛海信日立空调系统有限公司 | Module combined air conditioning system |
| CN111678255A (en) * | 2020-06-03 | 2020-09-18 | 青岛海信日立空调系统有限公司 | Air source heat pump unit |
| CN112005792A (en) * | 2020-09-24 | 2020-12-01 | 延安大学 | Agricultural greenhouse intelligent temperature control system |
| CN112005792B (en) * | 2020-09-24 | 2023-05-09 | 延安大学 | Intelligent temperature control system for agricultural greenhouse |
| CN112432324A (en) * | 2020-11-16 | 2021-03-02 | 海信（广东）空调有限公司 | Load control method and device and air conditioner |
| CN112460770A (en) * | 2020-11-20 | 2021-03-09 | 珠海格力电器股份有限公司 | Multi-module unit and control method and device thereof, storage medium and processor |
| CN112678006A (en) * | 2020-11-30 | 2021-04-20 | 山东朗进科技股份有限公司 | Cold quantity adjusting and controlling method for multi-compressor air conditioning unit and air conditioning unit for railway vehicle |
| CN112413854A (en) * | 2020-12-18 | 2021-02-26 | 珠海格力电器股份有限公司 | Temperature control method and device and air conditioning equipment |
| CN113203231A (en) * | 2021-05-07 | 2021-08-03 | 广州市华德工业有限公司 | Energy adjusting method and device of unit and unit |
| CN113881557A (en) * | 2021-10-18 | 2022-01-04 | 北京中鼎恒业科技股份有限公司 | Fermentation system and fermentation cylinder based on thing networking |
| CN114135988A (en) * | 2021-11-15 | 2022-03-04 | 珠海格力电器股份有限公司 | Control method and device of modular air conditioning system, controller and air conditioning system |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102252399A (en) | Compressor energy regulating and controlling method of modular cold/hot water unit | |
| US11339994B2 (en) | Control method and control device for variable-frequency and variable-capacity heat pump hot-air drying system | |
| CN104141964B (en) | Industrial furnace supply air system and method | |
| CN109373654B (en) | Running control method of water chilling unit or heat pump unit | |
| CN112377996B (en) | Air conditioning system and control method thereof | |
| CN205895562U (en) | High -efficient energy -saving control device of refrigeration cycle water pump | |
| CN106500404B (en) | Double-variable-capacity heat pump cold and heat combined supply system and control method thereof | |
| CN106482248B (en) | Control system of machine room air conditioner based on multi-connected air conditioner | |
| CN205228098U (en) | Heat pump drying device of two condensers of double evaporation ware | |
| CN102200335A (en) | Modular cold/ hot water unit energy-regulating control system and control method | |
| CN209655469U (en) | A kind of variable air rate fresh air dehumidification unit | |
| CN110237646B (en) | Low-energy-consumption universal multi-mode intelligent adsorption drying method for compressed air preparation | |
| CN210332201U (en) | Low-energy-consumption universal multi-mode intelligent adsorption drying device for compressed air preparation | |
| CN112611215A (en) | Control method of air source heat pump dryer with parallel double systems | |
| CN107120783A (en) | Blower control method with multi fan air-conditioning system | |
| CN204904111U (en) | System nitrogen machine temperature control system | |
| CN2804717Y (en) | Appts for supplying different temp heat transfer oil by using sme parameter heta transfer oil heating furnace | |
| US9610709B2 (en) | Tool management system | |
| CN102809260B (en) | Refrigeration system and control method thereof | |
| Vasilev et al. | Implemented energy saving system in buildings using the temperature hysteresis | |
| CN112728807A (en) | Combined type water cooling and heating unit system and control method thereof | |
| CN206919280U (en) | Improve the control system of gas heat pump air-conditioning stability | |
| CN103256079A (en) | Method and device for solving problem of frequent starting and stopping of low-pressure cylinder cooling steam safety gate of combined cycle units | |
| CN106051909B (en) | Dynamic balance method and system of heating pipe network | |
| CN204612076U (en) | The air conditioner combined unit of multiple stage |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C04 | Withdrawal of patent application after publication (patent law 2001) | ||
| WW01 | Invention patent application withdrawn after publication |
Open date: 20111123 |