CN207283181U - A kind of cogeneration grid-connected system - Google Patents
A kind of cogeneration grid-connected system Download PDFInfo
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- CN207283181U CN207283181U CN201721280269.5U CN201721280269U CN207283181U CN 207283181 U CN207283181 U CN 207283181U CN 201721280269 U CN201721280269 U CN 201721280269U CN 207283181 U CN207283181 U CN 207283181U
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Abstract
The utility model discloses a kind of cogeneration grid-connected system, including afterheat generating system, total drop power station, grid-connected mother section, the afterheat generating system connects grid-connected mother section through current limiting switch cabinet, the grid-connected mother section includes busbar PT cabinets 1YH, access cabinet 52F, outgoing line cabinet 52F2, outgoing line cabinet 52F1, the current limiting switch cabinet output terminal is connected with access cabinet, the output of the access cabinet connects busbar PT cabinets respectively, outgoing line cabinet 52F1, outgoing line cabinet 52F2, the busbar 1 in power station always drops through switchgear 52F4 connections in the outgoing line cabinet 52F1, the busbar 2 in power station always drops through switchgear 52F3 connections in the outgoing line cabinet 52F2.The utility model has the advantage of：The complexity of wiring when system can reduce grid-connected in total drop; afterheat generating system and the stability always dropped are improved, the interlocking between switchgear is set, improves power quality; it ensure that unit safety stable operation, be that follow-up multiple power sources are grid-connected and interlock protection is offered reference；Realize the reliability of supply network, security, economical.
Description
Technical field
The present invention relates to afterheat generating system field, more particularly to cogeneration grid-connected system and its interlocking.
Background technology
In clinker production process, kiln hood chamotte cooler and kiln tail preheater will produce the simultaneously outer substantial amounts of exhaust gas of row
(exhaust gas temperature is at 330~390 DEG C or so), for fully recycling exhaust gas in waste heat, reduce the influence to environment, meanwhile, also for
By cogeneration, saving energy, lowering energy consumption and reducing pollutants discharge and consumption reduction are realized, alleviate the pressure of factory's supply of electric power, produced by clinker
In cogeneration, can not only realize energy-saving and emission-reduction, can also reduce production cost to greatest extent, improve the competition of product
Power, realizes the economic benefit, social benefit and environmental benefit of project comprehensively.
The electricity that afterheat generating system sends recovery waste heat needs grid integration to total drop, to ensure whole electric power system
Stability, improve power quality, overcomes former total drop main electrical scheme complicated, cogeneration can not in the usual way grid-connected problem, it is necessary to
Redesign the grid-connected mode of connection.And in order to ensure unit safety stable operation, it is grid-connected in interlocking problem should also be as together
Consider, therefore, it is necessary to design a kind of cement afterheat generation grid-connected system regarding to the issue above.
The content of the invention
It is an object of the invention to overcome the deficiencies of the prior art and provide a kind of cogeneration grid-connected system, the system energy
The complexity of wiring when enough reducing grid-connected in total drop, improves afterheat generating system and the stability always dropped, improves power quality.
To achieve these goals, the technical solution adopted by the present invention is：A kind of cogeneration grid-connected system, including waste heat
Power station, grid-connected mother section, always drop in electricity generation system, and the afterheat generating system connects grid-connected mother section, institute through current limiting switch cabinet
The grid-connected mother section stated includes busbar PT cabinets 1YH, access cabinet 52F, outgoing line cabinet 52F2, outgoing line cabinet 52F1, the current limiting switch
Cabinet output terminal is connected with access cabinet, and the output of the access cabinet connects busbar PT cabinets, outgoing line cabinet 52F1, outgoing line cabinet 52F2 respectively,
The busbar 1 in power station always drops through switchgear 52F4 connections in the outgoing line cabinet 52F1, and the outgoing line cabinet 52F2 is through switchgear 52F3
The busbar 2 in the total drop power station of connection.
Busbar 1 is connected by switchgear QF14 with 1# transformers, and busbar 2 is connected by switchgear QF15 with 2# transformers,
Through switchgear QF18 connections busbar 3, busbar 3 is connected busbar 1 through switchgear QF16 with busbar 2, busbar 3 through switchgear QF17 with
3# transformers connect.
The switchgear 52F4 and switchgear QF14, switchgear QF17, switchgear QF18, switchgear 52F3 interlockings are set
Put.
When meeting switchgear QF14 combined floodgates, switchgear QF18 separating brakes, switchgear 52F3 separating brakes or meet switchgear
When QF14 separating brakes, switchgear QF17 close a floodgate, switchgear QF18 closes a floodgate, switchgear 52F4 could close a floodgate.
The shutting-brake control loop of switchgear 52F4 inner breakers in closing switch, closing coil, switchgear 52F3 including breaking
Road device normally-closed contact K1, switchgear QF14 inner breaker normally opened contacts K2, normally-closed contact K3, switchgear QF17 inner breakers are normally opened
Contact K4, switchgear QF18 inner breaker normally-closed contacts K5, normally opened contact K6 ,+KM are connected through closing switch, closing coil successively
Normally-closed contact K1, normally-closed contact K1 connect normally-closed contact K3, normally opened contact K2 respectively, and normally opened contact K2 connects through normally-closed contact K5
- KM is met, normally-closed contact K3 passes through normally opened contact K4, normally opened contact K6 connections-KM successively.
Meeting switchgear QF15 combined floodgates, switchgear QF16 separating brakes and 52F4 separating brakes or switchgear QF15 separating brakes, switch
When cabinet QF16 combined floodgates, switchgear QF17 combined floodgates and 52F4 separating brakes, switchgear 52F3 could close a floodgate.
The closing circuit of switchgear 52F3 inner breakers includes switchgear QF15 inner breaker normally opened contacts K7, normally-closed contact
K8, switchgear QF16 inner breaker normally opened contacts K9, normally-closed contact K10, switchgear QF17 inner breaker normally opened contacts K4, open
Close cabinet 52F4 inner breaker normally-closed contacts K11 ,+KM and normally-closed contact K11, normally-closed contact are connected after closing switch, closing coil
K11 connects normally opened contact K7, normally-closed contact K8 respectively, normally opened contact K7 through normally opened contact K10 connection-KM, normally-closed contact K8 according to
It is secondary through normally opened contact K9, normally opened contact K4 connections-KM.
When meeting switchgear 52F3 combined floodgates and 52F1 separating brakes, switchgear 52F2 could close a floodgate；Break in switchgear 52F2
It is normally closed that the closing circuit of road device includes closing switch, closing coil, 52F3 inner breaker normally opened contact K12,52F1 inner breakers
Contact K13 ,+KM connection-KM after closing switch, closing coil, normally opened contact K12, normally-closed contact K13.
When meeting switchgear 52F4 combined floodgates and switchgear 52F2 separating brakes, 52F1 could close a floodgate；Wherein 52F1 closing circuits
Including closing switch, closing coil, switchgear 52F4 inner breaker normally opened contacts K14, switchgear 52F2 inner breakers it is normally closed
Contact K15 ,+the KM connection-KM after closing switch, closing coil, normally opened contact K14, normally-closed contact K15 successively.
Meeting that 52F1 closes a floodgate or 52F2 closes a floodgate one of them, 52F could close a floodgate；The closing circuit of 52F inner breakers
Including normally opened contact K17 ,+KM in closing switch, closing coil, 52F1 inner breaker normally opened contacts K16,52F2 successively through closing a floodgate
Connection-KM after switch, closing coil, normally opened contact K16, normally opened contact K17 are connected in parallel on normally opened contact K16 both ends.
The afterheat generating system includes grid-connected busbar, grid-connection cabinet 52G, switchgear 52H, switchgear 52P, switchgear
52S, cogeneration station, cogeneration station are connected by switchgear 52S with switchgear 52G, the grid-connected busbar of switchgear 52G connections,
Grid-connected busbar is through 52H connection house transformers, and grid-connected busbar is through 52P connection current limiting switch cabinets.
When meeting that switchgear 52F closes a floodgate and current limiting switch cabinet closes a floodgate, switchgear 52P could closing operation；In 52F
Closing circuit of circuit breaker in closing switch, closing coil, the normally opened contact K18 of 52F inner breakers, current limiting switch cabinet including breaking
The normally opened contact K19 ,+KM of road device are connected after the closing switch, closing coil of 52F inner breakers with normally opened contact K18, normally opened
Contact K18 is through normally opened contact K19 connections-KM.
When switchgear 52P closes a floodgate, switchgear 52S closes a floodgate, switchgear 52H combined floodgate threes meet at the same time, switchgear 52G is
It can close a floodgate；Closing circuit of circuit breaker in switchgear 52G is included in the closing switch, closing coil, switchgear 52P of the breaker
The normally opened contact K20 of breaker, switchgear 52S inner breaker normally opened contacts K21,52H inner breakers is normally opened in switchgear
Contact K22 ,+KM connect after closing switch, closing coil, normally opened contact K20, normally opened contact K21, normally opened contact K22 successively
Meet-KM.
The advantage of the invention is that：The complexity of wiring when system can reduce grid-connected in total drop, improves cogeneration
System and the stability always dropped, set the interlocking between switchgear, improve power quality, it is ensured that unit safety stable operation,
It is grid-connected and interlock protection is offered reference for follow-up multiple power sources；Realize the reliability of supply network, security, economical.
Brief description of the drawings
Mark in the content and figure expressed below each width attached drawing of description of the invention is briefly described：
Fig. 1 is grid-connected system elementary diagram of the present invention；
Fig. 2 is the grid-connected mother segment structure schematic diagram of the present invention；
Fig. 3 is switchgear 52F4 interlock logic figures of the present invention；
Fig. 4 is switchgear 52F4 locking principle figures of the present invention；
Fig. 5 is switchgear 52F3 interlock logic figures of the present invention；
Fig. 6 is switchgear 52F3 locking principle figures of the present invention；
Fig. 7 is switchgear 52F2 interlock logic figures of the present invention；
Fig. 8 is switchgear 52F2 locking principle figures of the present invention；
Fig. 9 is switchgear 52F1 interlock logic figures of the present invention；
Figure 10 is switchgear 52F1 locking principle figures of the present invention；
Figure 11 is switchgear 52F interlock logic figures of the present invention；
Figure 12 is switchgear 52F schematic diagrams of the present invention；
Figure 13 is 52P locking principles figure of the present invention；
Figure 14 is switchgear 52G locking principle figures of the present invention.
Embodiment
It is further detailed to the embodiment work of the present invention by the description to optimum embodiment below against attached drawing
Thin explanation.
As shown in Figure 1, 2, total drop includes three main transformers in cogeneration factory, divides into two sections of 6kV busbares, wherein 3#
Main transformer is spare.15MW cogeneration units want two sections of 6kV busbares under three main transformers of grid integration, and design is considered as
Ad hoc cogeneration mother section is always dropping, and cogeneration is sent to total drop from T/G workshops and first passes through current limiting switch cabinet IS-LIMITER
Cogeneration mother section is accessed, if access cabinet, when, busbar PT cabinets, outgoing line cabinet two sides is respectively connected to always drop two sections of mothers 6kV
Line.Public grid-connected busbar is designed, two-way grid-connection cabinet is realized grid-connected with always two sections of busbares of drop.
Specific parallel network circuit includes：Power station, grid-connected mother section, always drop in afterheat generating system, and afterheat generating system is through current limliting
Switchgear connects grid-connected mother section, and grid-connected mother section includes busbar PT cabinets 1YH, access cabinet 52F, outgoing line cabinet 52F2, outgoing line cabinet
52F1, current limiting switch cabinet IS-LIMITER output terminals be connecteds with access cabinet, access cabinet 52F output connect respectively busbar PT cabinets,
The busbar 1 in power station, outgoing line cabinet 52F2 warps always drop through switchgear 52F4 connections in outgoing line cabinet 52F1, outgoing line cabinet 52F2, outgoing line cabinet 52F1
The busbar 2 in power station always drops in switchgear 52F3 connections.
Busbar 1 is connected by switchgear QF14 with 1# transformers, and busbar 2 is connected by switchgear QF15 with 2# transformers,
Through switchgear QF18 connections busbar 3, busbar 3 is connected busbar 1 through switchgear QF16 with busbar 2, busbar 3 through switchgear QF17 with
3# transformers connect.
Afterheat generating system includes grid-connected busbar, grid-connection cabinet 52G, switchgear 52H, switchgear 52P, switchgear 52S, waste heat
Power station, cogeneration station are connected by switchgear 52S with switchgear 52G, the grid-connected busbar of switchgear 52G connections, grid-connected busbar
Through 52H connection house transformers, grid-connected busbar is through 52P connection current limiting switch cabinets.
Chain logical relation is complicated after three main transformers, two sections of busbar access cogenerations, except the two of normal operation to be considered
Platform main transformer, it is contemplated that 3# spare transformers ensure chain safe and reliable in the case of putting into operation, generator component two is returned
Need well to design the interlock connection of its switchgear while road is grid-connected, it is ensured that unit safety stable operation.
As shown in Figure 3, Figure 4, switchgear 52F4 and switchgear QF14, switchgear QF17, switchgear QF18, switchgear 52F3
Interlocking is set.When meeting switchgear QF14 combined floodgates, switchgear QF18 separating brakes, switchgear 52F3 separating brakes or meet switchgear
When QF14 separating brakes, switchgear QF17 close a floodgate, switchgear QF18 closes a floodgate, switchgear 52F4 could close a floodgate.
The shutting-brake control loop of switchgear 52F4 inner breakers in closing switch, closing coil, switchgear 52F3 including breaking
Road device normally-closed contact K1, switchgear QF14 inner breaker normally opened contacts K2, normally-closed contact K3, switchgear QF17 inner breakers are normally opened
Contact K4, switchgear QF18 inner breaker normally-closed contacts K5, normally opened contact K6 ,+KM are connected through closing switch, closing coil successively
Normally-closed contact K1, normally-closed contact K1 connect normally-closed contact K3, normally opened contact K2 respectively, and normally opened contact K2 connects through normally-closed contact K5
- KM is met, normally-closed contact K3 passes through normally opened contact K4, normally opened contact K6 connections-KM successively.When switchgear 52F4 inner breakers close a floodgate
When, it is necessary to it is corresponding it is corresponding with it is interlocked other switchgears action caused by auxiliary contact closure open realize close
The energization in lock circuit, is powered so as to fulfill closing coil, and then 52F4 could close a floodgate completion.
As shown in Figure 5,6, switchgear QF15 combined floodgates, switchgear QF16 separating brakes and 52F4 separating brakes or switchgear are being met
When QF15 separating brakes, switchgear QF16 combined floodgates, switchgear QF17 combined floodgates and 52F4 separating brakes, switchgear 52F3 could close a floodgate.
The closing circuit of switchgear 52F3 inner breakers includes switchgear QF15 inner breaker normally opened contacts K7, normally-closed contact
K8, switchgear QF16 inner breaker normally opened contacts K9, normally-closed contact K10, switchgear QF17 inner breaker normally opened contacts K4, open
Close cabinet 52F4 inner breaker normally-closed contacts K11 ,+KM and normally-closed contact K11, normally-closed contact are connected after closing switch, closing coil
K11 connects normally opened contact K7, normally-closed contact K8 respectively, normally opened contact K7 through normally opened contact K10 connection-KM, normally-closed contact K8 according to
It is secondary through normally opened contact K9, normally opened contact K4 connections-KM.
Normally opened contact K11 closure and normally opened contact K7 closure, normally-closed contact K10 closure when or normally opened contact K11 closure,
When normally-closed contact K8 is closed and normally opened contact K9 closures, normally opened contact K4 are closed, closing switch closure just can return combined floodgate at this time
Road forms electrical circuit, and combined floodgate could act completion.It is respectively that switchgear QF15 is closed a floodgate, opened that auxiliary contacts of circuit breaker is corresponding at this time
Pass cabinet QF16 separating brakes and 52F4 separating brakes or switchgear QF15 separating brakes, switchgear QF16 combined floodgates, switchgear QF17 combined floodgates and 52F4
Separating brake.Because the combined floodgate sub-switching operation of switchgear has control of main circuit breaker, the auxiliary contact of the breaker of each switchgear are joined
Lock, which is arranged in the closing circuit of other breaker of switch cabinet, will form electric interlock, so as to ensure the peace that switchgear is opened
Entirely.
As shown in Figure 7,8, when meeting switchgear 52F3 combined floodgates and 52F1 separating brakes, switchgear 52F2 could close a floodgate；Opening
Closing the closing circuit of cabinet 52F2 inner breakers includes closing switch, closing coil, 52F3 inner breaker normally opened contacts K12,52F1
Inner breaker normally-closed contact K13 ,+KM connection-KM after closing switch, closing coil, normally opened contact K12, normally-closed contact K13.
The combined floodgate of 52F2 closes needs in 52F3 combined floodgates and 52F1 separating brakes, at this time the normally opened contact K12 closures of 52F3 inner breakers, 52F
The normally-closed contact K13 of inner breaker is also closed, and closing switch closes at this time, and 52F2 inner breakers closing circuit could form electricity and return
Road, so as to close a floodgate, otherwise can not form electric loop, can not close a floodgate.
As shown in Fig. 9,10, when meeting switchgear 52F4 combined floodgates and switchgear 52F2 separating brakes, 52F1 could close a floodgate；Wherein
52F1 closing circuits are including in closing switch, closing coil, switchgear 52F4 inner breaker normally opened contacts K14, switchgear 52F2
The normally-closed contact K15 ,+KM of breaker successively after closing switch, closing coil, normally opened contact K14, normally-closed contact K15 connection-
KM.Switchgear 52F4 inner breaker normally opened contacts K14, the normally-closed contact K15 of switchgear 52F2 inner breakers are arranged in series in
In the closing circuit of the breaker of 52F1, only when K15, K15 are closed, that is, switchgear 52F4 closes a floodgate and switchgear
During 52F2 separating brakes, closing switch closure can just make the closing circuit of circuit breaker of switchgear 52F1 form electrical circuit at this time, complete to close
Lock operates.
As shown in Figure 11,12, meeting that 52F1 closes a floodgate or 52F2 closes a floodgate one of them, 52F could close a floodgate；Break in 52F
The closing circuit of road device includes normally opened contact in closing switch, closing coil, 52F1 inner breaker normally opened contacts K16,52F2
Connection-KM after closing switch, closing coil, normally opened contact K16, normally opened contact K17 are connected in parallel on normally opened touch successively by K17 ,+KM
Point K16 both ends.In any closure of normally opened contact K16 or K17, the closing switch of operation 52F inner breakers can make closing circuit
Electrical circuit is formed, meets that 52F1 inner breakers close a floodgate or 52F2 inner breakers close a floodgate at this time.
When meeting that switchgear 52F closes a floodgate and current limiting switch cabinet closes a floodgate, switchgear 52P could closing operation；In 52F
Closing circuit of circuit breaker in closing switch, closing coil, the normally opened contact K18 of 52F inner breakers, current limiting switch cabinet including breaking
The normally opened contact K19 ,+KM of road device are connected after the closing switch, closing coil of 52F inner breakers with normally opened contact K18, normally opened
Contact K18 is through normally opened contact K19 connections-KM.
When switchgear 52P closes a floodgate, switchgear 52S closes a floodgate, switchgear 52H combined floodgate threes meet at the same time, switchgear 52G is
It can close a floodgate；Closing circuit of circuit breaker in switchgear 52G is included in the closing switch, closing coil, switchgear 52P of the breaker
The normally opened contact K20 of breaker, switchgear 52S inner breaker normally opened contacts K21,52H inner breakers is normally opened in switchgear
Contact K22 ,+KM connect after closing switch, closing coil, normally opened contact K20, normally opened contact K21, normally opened contact K22 successively
Meet-KM.
The interlock logic and implementation of the switchgear in grid-connected system are described above, by disconnected in switchgear
The auxiliary contact of road device realize interlocking, ensure that the security of the closing operation of switchgear so that whole grid-connected system can be with
Safely and steadily run.
Obviously present invention specific implementation is not subject to the restrictions described above, as long as employing the methodology and skill of the present invention
The improvement for the various unsubstantialities that art scheme carries out, within protection scope of the present invention.
Claims (10)
1. a kind of cogeneration grid-connected system, including afterheat generating system, power station always drops, it is characterised in that：Further include grid-connected mother
Join section, the afterheat generating system connects grid-connected mother section through current limiting switch cabinet, and the grid-connected mother section includes busbar PT
Cabinet 1YH, access cabinet 52F, outgoing line cabinet 52F2, outgoing line cabinet 52F1, the current limiting switch cabinet output terminal is connected with access cabinet, described
The output of access cabinet connects busbar PT cabinets, outgoing line cabinet 52F1, outgoing line cabinet 52F2 respectively, and the outgoing line cabinet 52F1 is through switchgear
The busbar 1 in power station always drops in 52F4 connections, and the busbar 2 in power station always drops through switchgear 52F3 connections in the outgoing line cabinet 52F2.
A kind of 2. cogeneration grid-connected system as claimed in claim 1, it is characterised in that：Busbar 1 by switchgear QF14 with
1# transformers connect, and busbar 2 is connected by switchgear QF15 with 2# transformers, and busbar 1 is female through switchgear QF18 connections busbar 3
Line 3 is connected through switchgear QF16 with busbar 2, and busbar 3 is connected through switchgear QF17 with 3# transformers.
A kind of 3. cogeneration grid-connected system as claimed in claim 2, it is characterised in that：The switchgear 52F4 and switch
Cabinet QF14, switchgear QF17, switchgear QF18, switchgear 52F3 interlockings are set；The shutting-brake control of switchgear 52F4 inner breakers
It is normally opened that circuit includes closing switch, closing coil, switchgear 52F3 inner breaker normally-closed contacts K1, switchgear QF14 inner breakers
Contact K2, normally-closed contact K3, switchgear QF17 inner breaker normally opened contacts K4, switchgear QF18 inner breaker normally-closed contacts K5,
Normally opened contact K6 ,+KM connect normally-closed contact K1 through closing switch, closing coil successively, and normally-closed contact K1 connects normally closed touch respectively
Point K3, normally opened contact K2, normally opened contact K2 through normally-closed contact K5 connection-KM, normally-closed contact K3 successively by normally opened contact K4, often
Open contact K6 connections-KM.
A kind of 4. cogeneration grid-connected system as described in claim 1 or 2 or 3, it is characterised in that：Meeting switchgear QF15
Close a floodgate, switchgear QF16 separating brakes and 52F4 separating brakes or switchgear QF15 separating brakes, switchgear QF16 combined floodgates, switchgear QF17 close a floodgate
And during 52F4 separating brakes, switchgear 52F3 could close a floodgate；The closing circuit of switchgear 52F3 inner breakers is included in switchgear QF15
Breaker normally opened contact K7, normally-closed contact K8, switchgear QF16 inner breaker normally opened contacts K9, normally-closed contact K10, switchgear
QF17 inner breaker normally opened contacts K4, switchgear 52F4 inner breaker normally-closed contacts K11 ,+KM are after closing switch, closing coil
Normally-closed contact K11 is connected, normally-closed contact K11 connects normally opened contact K7, normally-closed contact K8 respectively, and normally opened contact K7 is through normally opened contact
K10 connection-KM, normally-closed contact K8 are successively through normally opened contact K9, normally opened contact K4 connections-KM.
A kind of 5. cogeneration grid-connected system as described in claim 1 or 2 or 3, it is characterised in that：Meeting switchgear 52F3
When combined floodgate and 52F1 separating brakes, switchgear 52F2 could close a floodgate；Opened in the closing circuit of switchgear 52F2 inner breakers including combined floodgate
Pass, closing coil, 52F3 inner breaker normally opened contact K12,52F1 inner breaker normally-closed contact K13 ,+KM are through closing switch, conjunction
Connection-KM after brake cable circle, normally opened contact K12, normally-closed contact K13.
A kind of 6. cogeneration grid-connected system as claimed in claim 1, it is characterised in that：Meet switchgear 52F4 close a floodgate and
During switchgear 52F2 separating brakes, 52F1 could close a floodgate；Wherein 52F1 closing circuits include closing switch, closing coil, switchgear
52F4 inner breaker normally opened contacts K14, the normally-closed contact K15 ,+KM of switchgear 52F2 inner breakers are successively through closing switch, conjunction
Connection-KM after brake cable circle, normally opened contact K14, normally-closed contact K15.
A kind of 7. cogeneration grid-connected system as claimed in claim 1, it is characterised in that：Meeting 52F1 combined floodgates or 52F2
One of them is closed a floodgate, 52F could close a floodgate；The closing circuit of 52F inner breakers in closing switch, closing coil, 52F1 including breaking
Normally opened contact K17 ,+KM connect after closing switch, closing coil, normally opened contact K16 successively in road device normally opened contact K16,52F2
- KM is met, normally opened contact K17 is connected in parallel on normally opened contact K16 both ends.
A kind of 8. cogeneration grid-connected system as claimed in claim 1, it is characterised in that：The afterheat generating system includes
Grid-connected busbar, grid-connection cabinet 52G, switchgear 52H, switchgear 52P, switchgear 52S, cogeneration station, cogeneration station is by opening
Close cabinet 52S to be connected with switchgear 52G, the grid-connected busbar of switchgear 52G connections, grid-connected busbar is grid-connected through 52H connection house transformers
Busbar is through 52P connection current limiting switch cabinets.
A kind of 9. cogeneration grid-connected system as claimed in claim 8, it is characterised in that：Meet switchgear 52F close a floodgate and
When current limiting switch cabinet closes a floodgate, switchgear 52P could closing operation；Closing circuit of circuit breaker in 52F includes closing switch, closes a floodgate
Coil, the normally opened contact K18 of 52F inner breakers, the normally opened contact K19 ,+KM of current limiting switch cabinet inner breaker are through breaking in 52F
It is connected after the closing switch of device, closing coil with normally opened contact K18, normally opened contact K18 is through normally opened contact K19 connections-KM.
A kind of 10. cogeneration grid-connected system as claimed in claim 8, it is characterised in that：In switchgear 52P combined floodgates, switch
When cabinet 52S closes a floodgate, switchgear 52H combined floodgate threes meet at the same time, switchgear 52G could close a floodgate；Breaker in switchgear 52G closes
The closing switch in lock circuit including the breaker, closing coil, normally opened contact K20, the switchgear of breaker in switchgear 52P
In 52S inner breaker normally opened contacts K21, switchgear the normally opened contact K22 ,+KM of 52H inner breakers successively by closing switch,
Connection-KM after closing coil, normally opened contact K20, normally opened contact K21, normally opened contact K22.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721280269.5U CN207283181U (en) | 2017-09-30 | 2017-09-30 | A kind of cogeneration grid-connected system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721280269.5U CN207283181U (en) | 2017-09-30 | 2017-09-30 | A kind of cogeneration grid-connected system |
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| Publication Number | Publication Date |
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| CN207283181U true CN207283181U (en) | 2018-04-27 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
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| CN201721280269.5U Active CN207283181U (en) | 2017-09-30 | 2017-09-30 | A kind of cogeneration grid-connected system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107612031A (en) * | 2017-09-30 | 2018-01-19 | 安徽海螺建材设计研究院 | Cogeneration grid-connected system |
-
2017
- 2017-09-30 CN CN201721280269.5U patent/CN207283181U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107612031A (en) * | 2017-09-30 | 2018-01-19 | 安徽海螺建材设计研究院 | Cogeneration grid-connected system |
| CN107612031B (en) * | 2017-09-30 | 2024-01-23 | 安徽海螺建材设计研究院 | Waste heat power generation grid-connected system |
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