CN106523338A - Central air conditioner cooling water circulating pump control system capable of monitoring real-time energy consumption - Google Patents
Central air conditioner cooling water circulating pump control system capable of monitoring real-time energy consumption Download PDFInfo
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- CN106523338A CN106523338A CN201611169679.2A CN201611169679A CN106523338A CN 106523338 A CN106523338 A CN 106523338A CN 201611169679 A CN201611169679 A CN 201611169679A CN 106523338 A CN106523338 A CN 106523338A
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- 238000005265 energy consumption Methods 0.000 title claims abstract description 30
- 239000000498 cooling water Substances 0.000 title claims abstract description 27
- 238000012544 monitoring process Methods 0.000 title claims abstract description 17
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 10
- 230000005611 electricity Effects 0.000 claims abstract description 4
- 239000003054 catalyst Substances 0.000 claims description 117
- 238000006243 chemical reaction Methods 0.000 claims description 35
- 230000007935 neutral effect Effects 0.000 claims description 33
- 238000004378 air conditioning Methods 0.000 description 6
- 238000010586 diagram Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000001816 cooling Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B49/00—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00
- F04B49/06—Control using electricity
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Control Of Positive-Displacement Pumps (AREA)
Abstract
The invention discloses a central air conditioner cooling water circulating pump control system capable of monitoring real-time energy consumption. The central air conditioner cooling water circulating pump control system is characterized by comprising two frequency converters and three cooling water circulating pumps; the frequency converters comprise the frequency converter U1 and the frequency converter U2; the cooling water circulating pumps comprise the 1# main water pump, the 3# main water pump and the 2# backup water pump; the control system further comprises an energy consumption counting module which comprises a three-phase electricity meter; and the three-phase electricity meter is connected into the wire inlet end of a main loop. The control system can achieve multi-point control and switch between the manual starting mode and the automatic starting mode. The control system can monitor the energy consumption condition of the system in real time, and energy saving is facilitated.
Description
Technical field
The present invention relates to central air-conditioner cooling water control technology field, specifically a kind of central authorities of monitoring real time energy consumption
Air conditioning cooling water circulates pump control system.
Background technology
In order to possess more comfortable indoor environment, central air-conditioning is indispensable in having become people's work and living
Electrical equipment, but the consumption using air-conditioning to the energy is quite serious, is not had to each portion of air-conditioning in existing air conditioner
Part carries out the module of energy consumption statistic, it is impossible to accurately understand the energy consumption of each part inside air conditioner in detail, so as to carry out
Can not targetedly research direction during energy-saving design.
The content of the invention
To overcome the shortcomings of that above-mentioned prior art is present, it is an object of the invention to provide in a kind of monitoring real time energy consumption
Centre air conditioning cooling water circulation pump control system, can real-time control and detection energy consumption, reach the purpose of energy-conservation.
The technical solution adopted for the present invention to solve the technical problems is：A kind of central air-conditioning cooling of monitoring real time energy consumption
Water-circulating pump control system, is characterized in that：Including two converters and three cooling water circulating pumps, the converter includes frequency conversion
Device U1 and converter U2, the cooling water circulating pump include 1# feed pumps, 3# feed pumps and 2# reserve pumps, the control system
Also include energy consumption statistic module, the energy consumption statistic module includes three-phase voltameter, and the three-phase voltameter accesses major loop
End of incoming cables, one end of the converter U1 connect three phase mains by circuit breaker Q F2, and one end of the converter U2 is by open circuit
Device QF4 connects three phase mains, and the 1# feed pumps pass sequentially through thermorelay KH1, the main contacts of catalyst KM1 and chopper
QF1 accesses three phase mains, and the 2# reserve pumps pass sequentially through thermorelay KH2, the main contacts of catalyst KM4 and chopper
QF3 accesses three phase mains, and the 3# feed pumps pass sequentially through thermorelay KH3, the main contacts of catalyst KM7 and circuit breaker Q F5
Three phase mains is accessed, the other end of the converter U1 is also touched by the master of the main contacts and catalyst KM3 of catalyst KM2 respectively
Point connection 1# feed pumps and 2# reserve pumps, the other end of the converter U2 also respectively by the main contacts of catalyst KM6 and
The main contacts connection 3# feed pumps of catalyst KM5 and 2# reserve pumps.
Preferably, the three-phase voltameter be transformer access type three-phase voltameter, U, V, W end of the three-phase voltameter
Connect current transformer TA1, TA2 and TA3 respectively, three-phase electricity is accessed by fuse FU1, FU2 and FU3 respectively in U1, V1, W1 end
Source, A, B end are connected with host computer by telecommunication circuit, U ', V ', W ' ends ground connection.
Preferably, the control system also includes control loop, and the control loop includes manually booting loop and automatically
Power frequency startup loop.
Preferably, it is described manually boot loop and automatic power frequency startup loop include 1# feed pumps manually boot loop and from
Start building frequency starting-up later time, 2# reserve pumps manually boots loop and automatic power frequency startup loop and 3# feed pumps manually boot loop
With automatic power frequency startup loop；
The 1# feed pumps manually boot loop includes relay KA1, one end connection of the relay KA1 normally-closed contacts
One end of live wire 401, other end difference connecting valve SS1 and catalyst KM1 normally opened contacts, SS1 and catalyst KM1 is normally opened for switch
The other end of contact is all connected with the one end for switching ST1, and the other end for switching ST1 connects one end of catalyst KM2 normally-closed contacts, connects
The other end of tentaculum KM2 normally-closed contacts passes through catalyst KM1 coils and the thermorelay KH1 connecting to neutral lines being sequentially connected in series, the 1#
The automatic power frequency startup loop of feed pump includes controller, model G.AQ of the controller, and the other end of the switch ST1 is also
One end of the Y26 terminals of connection controller, the other end of the Y26 terminals of controller are started to exchange fire line by relay KA1 normally opened contacts
401；
The 2# reserve pumps manually boot loop includes relay KA1, and one end of the relay KA1 normally-closed contacts connects
Start to exchange fire line 401, one end of other end difference connecting valve SS2 and catalyst KM4 normally opened contacts, SS2 and catalyst KM4 is normal for switch
The other end for opening contact is all connected with switching one end of ST2, and the other end for switching ST2 connects one end of catalyst KM3 normally-closed contacts,
The other end of catalyst KM3 normally-closed contacts by the catalyst KM5 normally-closed contacts, catalyst KM4 coils and the heat that are sequentially connected in series after
Electrical equipment KH2 connecting to neutral lines, the automatic power frequency startup loop of the 2# reserve pumps include controller, and the other end of the switch ST2 is also
One end of the Y31 terminals of connection controller, the other end of the Y31 terminals of controller are started to exchange fire line by relay KA1 normally opened contacts
401；
The 3# feed pumps manually boot loop includes relay KA6, one end connection of the relay KA6 normally-closed contacts
One end of live wire 401, other end difference connecting valve SS3 and catalyst KM7 normally opened contacts, SS3 and catalyst KM7 is normally opened for switch
The other end of contact is all connected with the one end for switching ST3, and the other end for switching ST3 connects one end of catalyst KM6 normally-closed contacts, connects
The other end of tentaculum KM6 normally-closed contacts passes through catalyst KM7 coils and the thermorelay KH3 connecting to neutral lines being sequentially connected in series, the 3#
The automatic power frequency startup loop of feed pump includes controller, and the other end of the switch ST3 is also connected with the one of the Y34 terminals of controller
End, the other end of the Y34 terminals of controller are started to exchange fire line 401 by relay KA6 normally opened contacts；
Preferably, the control loop also includes emergency stop switch SBR and change-over circuit, and the change-over circuit includes out
ZT1 and relay KA1, KA2 coil are closed, one end connection live wire 401 of the permutator ZT1, the other end connect relay respectively
One end of device KA1, KA6 coil, another terminal connecting zero line of relay KA1, KA6 coil.
Preferably, the control loop also includes that automatic frequency-conversion prepares loop and variable frequency starting/reset loop, described automatic
Frequency conversion prepares loop includes that 1#, 2# pump automatic frequency-conversion prepares loop and 3#, 2# pump automatic frequency-conversion prepares loop, and the frequency conversion is opened
Dynamic/reset loop includes that 1# pump frequency conversions start/reset loop and 2# pump frequency conversions start/reset loop；
1#, 2# pump automatic frequency-conversion prepares loop includes relay KA1, one end of the relay KA1 normally opened contacts
Connection live wire 401, the other end connect one end of Y27, Y30 terminal of controller respectively, and the other end of the Y27 terminals of controller leads to
Cross catalyst KM1 normally-closed contacts, catalyst KM3 normally-closed contacts and the catalyst KM2 coil connecting to neutral lines being sequentially connected in series, the control
The other end of the Y30 terminals of device is by the catalyst KM2 normally-closed contacts that are sequentially connected in series, catalyst KM4 normally-closed contacts, catalyst
KM5 normally-closed contacts and catalyst KM3 coil connecting to neutral lines；
3#, 2# pump automatic frequency-conversion prepares loop includes relay KA6, one end of the relay KA6 normally opened contacts
Connection live wire 401, the other end connect one end of Y35, Y36 terminal of controller respectively, and the other end of the Y35 terminals of controller leads to
Cross catalyst KM5 normally-closed contacts, catalyst KM7 normally-closed contacts and the catalyst KM6 coil connecting to neutral lines being sequentially connected in series, the control
The other end of the Y36 terminals of device is by the catalyst KM3 normally-closed contacts that are sequentially connected in series, catalyst KM4 normally-closed contacts, catalyst
KM6 normally-closed contacts and catalyst KM5 coil connecting to neutral lines；
The 1# pump frequency conversions start/reset loop includes controller, one end connection of Y32, Y33 terminal of the controller
Live wire 401, the other end of the Y32 of the controller pass through relay KA2 coil connecting to neutral lines, the Y33 terminals of the controller
The other end passes through relay KA3 coil connecting to neutral lines；
The 2# pump frequency conversions start/reset loop includes controller, one end connection of Y37, Y40 terminal of the controller
Live wire 401, the other end of the Y37 of the controller pass through relay KA7 coil connecting to neutral lines, the Y40 terminals of the controller
The other end passes through relay KA8 coil connecting to neutral lines.
Preferably, the telecommunication circuit is RS485 telecommunication circuits.
Preferably, model G.REAL-M2 of the three-phase voltameter.
Preferably, the major loop also include current transformer TA4, TA5 and TA6, described current transformer TA4, TA5 and
TA6 connects 1# feed pumps, 2# reserve pumps and 3# water injecting pumps respectively.
The invention has the beneficial effects as follows：The energy consumption statistic module of the present invention is capable of the cooling water circulation pumping system of real-time monitoring
Energy consumption；The present invention can realize manually booting and automatically actuated switching, beneficial to energy saving of system；Thermorelay KH1, KH2 and KH3
Damage of the high current to device is avoided, extends device service life.
Description of the drawings
Fig. 1 is main loop circuit figure of the present invention；
Fig. 2 is energy consumption statistic module circuit diagram of the present invention；
Fig. 3 is control loop circuit diagram of the present invention (part one)；
Fig. 4 is control loop circuit diagram of the present invention (part two).
Specific embodiment
Clearly to illustrate the technical characterstic of this programme, below by specific embodiment, and its accompanying drawing is combined, to this
It is bright to be described in detail.
As Figure 1-4, the central air-conditioner cooling water circulation pump control system of a kind of monitoring real time energy consumption of the invention, its
It is characterized in that：Including two converters and three cooling water circulating pumps, the converter includes converter U1 and converter U2, described
Cooling water circulating pump includes 1#, 3# feed pump and 2# reserve pumps, and the control system also includes energy consumption statistic module, the energy
Consumption statistical module includes three-phase voltameter, and the three-phase voltameter accesses the end of incoming cables of major loop, one end of the converter U1
Three phase mains is connected by circuit breaker Q F2, one end of the converter U2 connects three phase mains, the 1# by circuit breaker Q F4
Feed pump passes sequentially through thermorelay KH1, the main contacts of catalyst KM1 and circuit breaker Q F1 and accesses three phase mains, and the 2# is standby
Water pump passes sequentially through thermorelay KH2, the main contacts of catalyst KM4 and circuit breaker Q F3 and accesses three phase mains, the 3# feed pumps
Pass sequentially through thermorelay KH3, the main contacts of catalyst KM7 and circuit breaker Q F5 and access three phase mains, the converter U1's is another
One end also connects 1# feed pumps and 2# reserve pumps, institute by the main contacts of the main contacts and catalyst KM3 of catalyst KM2 respectively
The other end for stating converter U2 also connects 3# feed pumps by the main contacts of the main contacts and catalyst KM5 of catalyst KM6 respectively
With 2# reserve pumps.
Preferably, the major loop also include current transformer TA4, TA5 and TA6, described current transformer TA4, TA5 and
TA6 connects 1# feed pumps, 2# reserve pumps and 3# water injecting pumps respectively.
As shown in Fig. 2 the three-phase voltameter is transformer access type three-phase voltameter, the U of the three-phase voltameter, V,
W ends connect current transformer TA1, TA2 and TA3 respectively, and U1, V1, W1 end accesses three by fuse FU1, FU2 and FU3 respectively
Phase power supply, A, B end are connected with host computer by telecommunication circuit, U ', V ', W ' ends ground connection.
Preferably, the telecommunication circuit be RS485 telecommunication circuits, model G.REAL-M2 of the three-phase voltameter.
As shown in figure 3, the control loop includes manually booting loop, automatic power frequency startup loop, automatic frequency-conversion preparation
Loop and variable frequency starting/reset loop.
The loop and automatic power frequency startup loop of manually booting includes that 1# feed pumps manually boot loop and automatic power frequency
Starting-up later time, 2# reserve pumps manually boot loop and automatic power frequency startup loop and 3# feed pumps manually boot loop and automatically
Power frequency startup loop.
The 1# feed pumps manually boot loop includes relay KA1, one end connection of the relay KA1 normally-closed contacts
One end of live wire 401, other end difference connecting valve SS1 and catalyst KM1 normally opened contacts, SS1 and catalyst KM1 is normally opened for switch
The other end of contact is all connected with the one end for switching ST1, and the other end for switching ST1 connects one end of catalyst KM2, catalyst KM2
The other end by the catalyst KM1 coils that are sequentially connected in series and thermorelay KH1 connecting to neutral lines, the automatic power frequency of the 1# feed pumps is opened
Dynamic loop includes controller, and the other end of the switch ST1 is also connected with one end of the Y26 terminals of controller, the Y26 ends of controller
The other end of son is started to exchange fire line 401 by relay KA1 normally opened contacts.
The 2# reserve pumps manually boot loop includes relay KA1, and one end of the relay KA1 normally-closed contacts connects
Start to exchange fire line 401, one end of other end difference connecting valve SS2 and catalyst KM4 normally opened contacts, SS2 and catalyst KM4 is normal for switch
The other end for opening contact is all connected with switching one end of ST2, and the other end for switching ST2 connects one end of catalyst KM3, catalyst
The other end of KM3 passes through catalyst KM5 normally-closed contacts, catalyst KM4 coils and the thermorelay KH2 connecting to neutral lines being sequentially connected in series,
The automatic power frequency startup loop of the 2# reserve pumps includes controller, and the other end of the switch ST2 is also connected with the Y31 of controller
One end of terminal, the other end of the Y31 terminals of controller are started to exchange fire line 401 by relay KA1 normally opened contacts.
The 3# feed pumps manually boot loop includes relay KA6, one end connection of the relay KA6 normally-closed contacts
One end of live wire 401, other end difference connecting valve SS3 and catalyst KM7 normally opened contacts, SS3 and catalyst KM7 is normally opened for switch
The other end of contact is all connected with the one end for switching ST3, and the other end for switching ST3 connects one end of catalyst KM6, catalyst KM6
The other end by the catalyst KM7 coils that are sequentially connected in series and thermorelay KH3 connecting to neutral lines, the automatic power frequency of the 3# feed pumps is opened
Dynamic loop includes controller, and the other end of the switch ST3 is also connected with one end of the Y34 terminals of controller, the Y34 ends of controller
The other end of son is started to exchange fire line 401 by relay KA6 normally opened contacts.
Preferably, the control loop also includes emergency stop switch SBR and change-over circuit, and the change-over circuit includes out
ZT1 and relay KA1, KA2 coil are closed, one end connection live wire 401 of the permutator ZT1, the other end connect relay respectively
One end of device KA1, KA6 coil, another terminal connecting zero line of relay KA1, KA6 coil.
The automatic frequency-conversion prepares loop includes that 1#, 2# pump automatic frequency-conversion prepares loop and 3#, 2# pump automatic frequency-conversion prepares
Loop, the variable frequency starting/reset loop include that 1# pump frequency conversions start/reset loop and 2# pump frequency conversions start/reset loop.
1#, 2# pump automatic frequency-conversion prepares loop includes relay KA1, one end of the relay KA1 normally opened contacts
Connection live wire 401, the other end connect one end of Y27, Y30 terminal of controller respectively, and the other end of the Y27 terminals of controller leads to
Cross catalyst KM1 normally-closed contacts, catalyst KM3 normally-closed contacts and the catalyst KM2 coil connecting to neutral lines being sequentially connected in series, the control
The other end of the Y30 terminals of device is by the catalyst KM2 normally-closed contacts that are sequentially connected in series, catalyst KM4 normally-closed contacts, catalyst
KM5 normally-closed contacts and catalyst KM3 coil connecting to neutral lines.
3#, 2# pump automatic frequency-conversion prepares loop includes relay KA6, one end of the relay KA6 normally opened contacts
Connection live wire 401, the other end connect one end of Y35, Y36 terminal of controller respectively, and the other end of the Y35 terminals of controller leads to
Cross catalyst KM5 normally-closed contacts, catalyst KM7 normally-closed contacts and the catalyst KM6 coil connecting to neutral lines being sequentially connected in series, the control
The other end of the Y36 terminals of device is by the catalyst KM3 normally-closed contacts that are sequentially connected in series, catalyst KM4 normally-closed contacts, catalyst
KM6 normally-closed contacts and catalyst KM5 coil connecting to neutral lines.
The 1# pump frequency conversions start/reset loop includes controller, one end connection of Y32, Y33 terminal of the controller
Live wire 401, the other end of the Y32 of the controller pass through relay KA2 coil connecting to neutral lines, the Y33 terminals of the controller
The other end passes through relay KA3 coil connecting to neutral lines.
The 2# pump frequency conversions start/reset loop includes controller, one end connection of Y37, Y40 terminal of the controller
Live wire 401, the other end of the Y37 of the controller pass through relay KA7 coil connecting to neutral lines, the Y40 terminals of the controller
The other end passes through relay KA8 coil connecting to neutral lines.
The present invention is capable of achieving the switching for controlling manually and automatically controlling, and controller can also realize the switching of power frequency, frequency conversion,
Operation principle is as follows：
Manually boot：When permutator ZT1 disconnects, relay KA1 coils and relay KA6 coil no powers, relay
KA1 normally opened contacts and relay KA6 normally opened contacts disconnect, and automatic loop is obstructed, relay KA1 normally-closed contacts and relay KA6
Normally-closed contact is closed.If 1. closure switch SS1, the connection of catalyst KM1 coils, while catalyst KM2 normally-closed contacts disconnect, 1# pumps
Manual power frequency startup；If 2. closure switch SS2, catalyst KM4 coils are connected, while catalyst KM3 normally-closed contacts and catalyst
KM5 normally-closed contacts disconnect, the manual power frequency startup of 2# stand-by pumps；If 3. now closure switch SS3, catalyst KM7 coils are connected, together
When catalyst KM6 normally-closed contacts disconnect, the manual power frequency startup of 3# pumps.
Automatic power frequency startup (by taking 1# as an example)：When permutator ZT1 is closed, relay KA1 coils and relay KA6 coils
It is powered, relay KA1 normally-closed contacts and relay KA6 normally-closed contacts disconnect, and manual loop is obstructed, relay KA1 normally opened contacts
Close with relay KA6 normally opened contacts.If the internal terminal Y26 closings of contact of cooling water pump efficiency controller, catalyst KM1
Connect, and catalyst KM2 disconnects, the automatic power frequency startup of 1# pumps.
Automatic frequency-conversion starts (by taking 1# as an example)：When permutator ZT1 is closed, relay KA1 coils and relay KA6 coils
It is powered, relay KA1 normally-closed contacts and relay KA6 normally-closed contacts disconnect, and manual loop is obstructed, relay KA1 normally opened contacts
Close with relay KA6 normally opened contacts.The inner contact Y27 closing of contact of controller, catalyst KM2 closures, while KM1, KM3
Disconnect, 1# pumps automatic frequency-conversion starts.
The above is the preferred embodiment of the present invention, for those skilled in the art,
Without departing from the principles of the invention, some improvements and modifications can also be made, these improvements and modifications are also regarded as this
Bright protection domain.
Claims (9)
1. a kind of central air-conditioner cooling water circulation pump control system of monitoring real time energy consumption, is characterized in that：Including two converters
With three cooling water circulating pumps, the converter includes converter U1 and converter U2, and the cooling water circulating pump includes 1# master
Water pump, 3# feed pumps and 2# reserve pumps, the control system also include energy consumption statistic module, and the energy consumption statistic module includes
Three-phase voltameter, the three-phase voltameter access the end of incoming cables of major loop, and one end of the converter U1 is connected by circuit breaker Q F2
Three phase mains is connect, one end of the converter U2 connects three phase mains by circuit breaker Q F4, and the 1# feed pumps pass sequentially through heat
Relay KH1, the main contacts of catalyst KM1 and circuit breaker Q F1 access three phase mains, the 2# reserve pumps pass sequentially through heat after
Electrical equipment KH2, the main contacts of catalyst KM4 and circuit breaker Q F3 access three phase mains, and the 3# feed pumps pass sequentially through thermorelay
KH3, the main contacts of catalyst KM7 and circuit breaker Q F5 access three phase mains, and the other end of the converter U1 is also respectively by connecing
The main contacts connection 1# feed pumps of the main contacts and catalyst KM3 of tentaculum KM2 and 2# reserve pumps, the converter U2's is another
End also connects 3# feed pumps and 2# reserve pumps by the main contacts of the main contacts and catalyst KM5 of catalyst KM6 respectively.
2. a kind of central air-conditioner cooling water of monitoring real time energy consumption according to claim 1 circulates pump control system, and which is special
Levying is：The three-phase voltameter is transformer access type three-phase voltameter, and U, V, W end of the three-phase voltameter connects electricity respectively
Current transformer TA1, TA2 and TA3, U1, V1, W1 end access three phase mains by fuse FU1, FU2 and FU3 respectively, and A, B end leads to
Cross telecommunication circuit to be connected with host computer, U ', V ', W ' ends ground connection.
3. a kind of central air-conditioner cooling water of monitoring real time energy consumption according to claim 1 circulates pump control system, and which is special
Levying is：The control system also includes control loop, and the control loop includes that manually booting loop and automatic power frequency startup returns
Road.
4. a kind of central air-conditioner cooling water of monitoring real time energy consumption according to claim 3 circulates pump control system, and which is special
Levying is：The loop and automatic power frequency startup loop of manually booting includes that 1# feed pumps manually boot loop and automatic power frequency startup
Loop, 2# reserve pumps manually boot loop and automatic power frequency startup loop and 3# feed pumps manually boot loop and automatic power frequency
Starting-up later time；
The 1# feed pumps manually boot loop includes relay KA1, one end connection live wire of the relay KA1 normally-closed contacts
One end of 401, other end difference connecting valve SS1 and catalyst KM1 normally opened contacts, switch SS1 and catalyst KM1 normally opened contacts
The other end be all connected with switch ST1 one end, switch ST1 the other end connect catalyst KM2 normally-closed contacts one end, catalyst
The other end of KM2 normally-closed contacts by the catalyst KM1 coils that are sequentially connected in series and thermorelay KH1 connecting to neutral lines, the main water of the 1#
The automatic power frequency startup loop of pump includes controller, and the other end of the switch ST1 is also connected with one end of the Y26 terminals of controller,
The other end of the Y26 terminals of controller is started to exchange fire line 401 by relay KA1 normally opened contacts；
The 2# reserve pumps manually boot loop includes relay KA1, one end connection fire of the relay KA1 normally-closed contacts
One end of line 401, other end difference connecting valve SS2 and catalyst KM4 normally opened contacts, switch SS2 and catalyst KM4 is normally opened to be touched
The other end of point is all connected with the one end for switching ST2, and the other end for switching ST2 connects one end of catalyst KM3 normally-closed contacts, contact
The other end of device KM3 normally-closed contacts passes through catalyst KM5 normally-closed contacts, catalyst KM4 coils and the thermorelay being sequentially connected in series
KH2 connecting to neutral lines, the automatic power frequency startup loop of the 2# reserve pumps include controller, and controller model G.AQ is described
The other end of switch ST2 is also connected with one end of the Y31 terminals of controller, and the other end of the Y31 terminals of controller passes through relay
KA1 normally opened contacts are started to exchange fire line 401；
The 3# feed pumps manually boot loop includes relay KA6, one end connection live wire of the relay KA6 normally-closed contacts
One end of 401, other end difference connecting valve SS3 and catalyst KM7 normally opened contacts, switch SS3 and catalyst KM7 normally opened contacts
The other end be all connected with switch ST3 one end, switch ST3 the other end connect catalyst KM6 normally-closed contacts one end, catalyst
The other end of KM6 normally-closed contacts by the catalyst KM7 coils that are sequentially connected in series and thermorelay KH3 connecting to neutral lines, the main water of the 3#
The automatic power frequency startup loop of pump includes controller, and the other end of the switch ST3 is also connected with one end of the Y34 terminals of controller,
The other end of the Y34 terminals of controller is started to exchange fire line 401 by relay KA6 normally opened contacts.
5. a kind of central air-conditioner cooling water of monitoring real time energy consumption according to claim 3 circulates pump control system, and which is special
Levying is：The control loop also includes emergency stop switch SBR and change-over circuit, the change-over circuit include switching ZT1 and after
Electrical equipment KA1, KA2 coil, one end connection live wire 401 of the permutator ZT1, the other end connect relay KA1, KA6 respectively
One end of coil, another terminal connecting zero line of relay KA1, KA6 coil.
6. a kind of central air-conditioner cooling water of monitoring real time energy consumption according to claim 3 circulates pump control system, and which is special
Levying is：The control loop also includes that automatic frequency-conversion prepares loop and variable frequency starting/reset loop, and the automatic frequency-conversion prepares back
Road includes that 1#, 2# pump automatic frequency-conversion prepares loop and 3#, 2# pump automatic frequency-conversion prepares loop, the variable frequency starting/reset loop
Start/reset loop including 1# pump frequency conversions and 2# pump frequency conversions start/reset loop；
1#, 2# pump automatic frequency-conversion prepares loop includes relay KA1, one end connection of the relay KA1 normally opened contacts
Live wire 401, the other end connect one end of Y27, Y30 terminal of controller respectively, the other end of the Y27 terminals of controller by according to
The catalyst KM1 normally-closed contacts of secondary series connection, catalyst KM3 normally-closed contacts and catalyst KM2 coil connecting to neutral lines, the controller
The other end of Y30 terminals is normal by the catalyst KM2 normally-closed contacts that are sequentially connected in series, catalyst KM4 normally-closed contacts, catalyst KM5
Closed contact and catalyst KM3 coil connecting to neutral lines；
3#, 2# pump automatic frequency-conversion prepares loop includes relay KA6, one end connection of the relay KA6 normally opened contacts
Live wire 401, the other end connect one end of Y35, Y36 terminal of controller respectively, the other end of the Y35 terminals of controller by according to
The catalyst KM5 normally-closed contacts of secondary series connection, catalyst KM7 normally-closed contacts and catalyst KM6 coil connecting to neutral lines, the controller
The other end of Y36 terminals is normal by the catalyst KM3 normally-closed contacts that are sequentially connected in series, catalyst KM4 normally-closed contacts, catalyst KM6
Closed contact and catalyst KM5 coil connecting to neutral lines；
The 1# pump frequency conversions start/reset loop includes controller, one end connection live wire of Y32, Y33 terminal of the controller
The other end of 401, the Y32 of the controller by relay KA2 coil connecting to neutral lines, the Y33 terminals of the controller it is another
End is by relay KA3 coil connecting to neutral lines；
The 2# pump frequency conversions start/reset loop includes controller, one end connection live wire of Y37, Y40 terminal of the controller
The other end of 401, the Y37 of the controller by relay KA7 coil connecting to neutral lines, the Y40 terminals of the controller it is another
End is by relay KA8 coil connecting to neutral lines.
7. a kind of central air-conditioner cooling water of monitoring real time energy consumption according to claim 2 circulates pump control system, and which is special
Levying is：The telecommunication circuit is RS485 telecommunication circuits.
8. a kind of central air-conditioner cooling water of monitoring real time energy consumption according to claim 2 circulates pump control system, and which is special
Levying is：Model G.REAL-M2 of the three-phase voltameter.
9. a kind of central air-conditioner cooling water of monitoring real time energy consumption according to claim 1 circulates pump control system, and which is special
Levying is：The major loop also includes current transformer TA4, TA5 and TA6, and described current transformer TA4, TA5 and TA6 connect respectively
Connect 1# feed pumps, 2# reserve pumps and 3# water injecting pumps.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112019127A (en) * | 2019-05-31 | 2020-12-01 | 河南科锐特科技发展有限公司 | Online frequency conversion power frequency switched systems device |
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