CN206894347U - Coal feeder control power supply - Google Patents
Coal feeder control power supply Download PDFInfo
- Publication number
- CN206894347U CN206894347U CN201720903188.XU CN201720903188U CN206894347U CN 206894347 U CN206894347 U CN 206894347U CN 201720903188 U CN201720903188 U CN 201720903188U CN 206894347 U CN206894347 U CN 206894347U
- Authority
- CN
- China
- Prior art keywords
- power supply
- feeder
- switch
- sts
- ups
- 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.)
- Expired - Fee Related
Links
- 239000003245 coal Substances 0.000 title abstract description 12
- 230000003068 static effect Effects 0.000 claims abstract description 36
- 238000006243 chemical reaction Methods 0.000 claims description 8
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- 239000002817 coal dust Substances 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 230000007935 neutral effect Effects 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
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- Stand-By Power Supply Arrangements (AREA)
Abstract
The utility model discloses a feeder control power, include: the device comprises a coal feeder power supply interface, a UPS, a first control switch, a second control switch, a static transfer switch, a third control switch, a circuit breaker and a coal feeder power supply control circuit; the power supply interface of the coal feeder for receiving alternating current is connected with the first input end of the static transfer switch through a first control switch; the UPS is connected with the second input end of the static transfer switch through a second control switch; the output end of the static transfer switch is connected with the input end of the breaker through a third control switch, and the output end of the breaker is connected with the coal feeder power supply control circuit. According to the coal feeder control power supply, the coal feeder power supply is added on the basis of the UPS power supply, the cooperative work of two paths of power supplies is realized through the static transfer switch, and the normal power supply of the coal feeder power supply control circuit of the coal feeder is ensured, so that the coal feeder can safely and stably run continuously, the safe and stable running of a unit is improved, and the cost for maintaining and replacing the UPS in the future is reduced.
Description
Technical field
Power supply technical field is the utility model is related to, more particularly to a kind of feeder control power supply.
Background technology
Existing Power Plant feeder is the visual plant for ensureing stable operation of the boiler, and power supply tripping operation will influence pot
Stove stable operation, or even chaser.The castle type UPS that the control power supply of every feeder is equipped with from this feeder provides power supply, by
It is serious in live coal dust, often result in UPS and cut bypass operation and failure without output, once power failure, it will cause
Feeder fault trip, coal supply can be caused insufficient, in some instances it may even be possible to cause unit chaser, influence feeder stable operation.
The information for being disclosed in the background section is merely intended to increase the understanding to general background of the present utility model, and
It is not construed as recognizing or implies that the information structure has been existing well known to persons skilled in the art in any form
Technology.
Utility model content
The purpose of this utility model is to provide a kind of feeder control power supply, so as to overcome existing feeder stable
The poor technical problem of property.
To achieve the above object, the utility model provides a kind of feeder control power supply, including：Feeder power supply connects
Mouth, UPS, the first controlling switch, the second controlling switch, STS, the 3rd controlling switch, breaker and feeder power supply
Control circuit；The feeder power interface for receiving alternating current passes through first controlling switch and the static conversion
The first input end of switch is connected；The second input that the UPS passes through second controlling switch and the STS
End is connected；The output end of the STS is connected by the 3rd controlling switch with the input of the breaker,
The output end of the breaker is connected with the feeder power control circuit.
In a kind of possible implementation, the STS includes the first static switch, the second static switch
And logic controller；One end of first static switch is the first input end of the STS, and the other end is institute
State the output end of STS；One end of second static switch is the second input of the STS,
The other end is the output end of the STS；The logic controller respectively with first static switch and described
The control terminal of two static switches is connected, for controlling cut-offfing for first static switch and second static switch.
In a kind of possible implementation, the first collection terminal of the logic controller and the feeder power interface
It is connected；Second collection terminal of the logic controller is connected with the output end of the UPS.
In a kind of possible implementation, feeder control power supply also includes：Spare interface；The spare interface and institute
The connecting node stated between the 3rd controlling switch and the breaker is connected.
A kind of feeder control power supply that the utility model embodiment provides, adds feeder on the basis of ups power
Power supply, the collaborative work of two-way power supply is realized by STS, ensure that the feeder power control circuit of feeder supplies
It is electric normal, so as to ensure that feeder can continuously be run with safety and stability, the safe and stable operation of unit is improved, and reduce day
The cost for changing UPS is safeguarded afterwards.STS may be such that in the case of uninterrupted power supply between two independent current sources
Load either automatically or manually handled, processing time be less than 6 milliseconds；All conversions are all quick break-before-makes, main
Dash current will not be produced between stand-by power source.
Other features and advantages of the utility model will illustrate in the following description, also, partly from specification
In become apparent, or understood by implementing the utility model.The purpose of this utility model and other advantages can pass through
Specifically noted structure is realized and obtained in the specification, claims and accompanying drawing write.
Below by drawings and examples, the technical solution of the utility model is described in further detail.
Brief description of the drawings
Accompanying drawing is used for providing further understanding to of the present utility model, and a part for constitution instruction, with this practicality
New embodiment is used to explain the utility model together, does not form to limitation of the present utility model.In the accompanying drawings：
Fig. 1 is the first circuit structure diagram that feeder controls power supply in the utility model embodiment；
Fig. 2 is the second circuit structure chart that feeder controls power supply in the utility model embodiment.
Embodiment
Below in conjunction with the accompanying drawings, specific embodiment of the present utility model is described in detail, it is to be understood that this practicality
New protection domain is not limited by embodiment.
Explicitly indicated that unless otherwise other, otherwise in entire disclosure and claims, term " comprising " or its change
Change such as "comprising" or " including " etc. and will be understood to comprise stated element or part, and do not exclude other members
Part or other parts.
A kind of feeder control power supply that the utility model embodiment provides, referring to shown in Fig. 1 dashed box inner structures, including：
Feeder power interface, UPS, the first controlling switch QK1, the second controlling switch QK2, STS, the 3rd controlling switch
QK3, circuit breaker Q F1 and feeder power control circuit.
In the utility model embodiment, feeder power interface is used to receive alternating current, and the alternating current is used for simultaneously in itself
Powered for feeder M, the phase (the A phases in Fig. 1) in Fig. 1 in three interfaces A, B, C is given by feeder power interface for this
Coal machine control power supply provides electric energy, and N lines represent the neutral conductor.The input that feeder power interface passes through circuit breaker Q F2 and frequency converter
End is connected, and the output end of frequency converter is connected with feeder M, is powered for feeder M；Wherein circuit breaker Q F2 is feeder power line
The switch on road.
Meanwhile as shown in figure 1, the feeder power interface passes through the first controlling switch QK1's and STS STS
First input end is connected；UPS is connected by the second controlling switch QK2 with the second input of STS.Static conversion
Switch STS output end be connected by the 3rd controlling switch QK3 with circuit breaker Q F1 input, circuit breaker Q F1 output end and
Feeder power control circuit is connected.
In the utility model embodiment, the STS is alternative automatic transfer switch, under normal operating conditions,
It is in main power source in normal voltage range, load is connected to main power source always.When main power source breaks down, load is automatic
Stand-by power supply is switched to, after main power source recovers normal, load automatic switch to main power source.Wherein, feeder power supply and UPS two
In power supply, any one power supply can be designed to preferred power supply all the way, and another is standby two road power supply.The utility model is real
Apply in example, preferred power supply all the way is derived from feeder in itself, standby two road power supply is derived from main frame ups system, and two-way is independent mutually
Uninterrupted power source, so as to ensure that the safety and stability of feeder is continuously run.Feeder power control circuit is feeder
Feeder power control circuit, control the running status of feeder.
A kind of feeder control power supply that the utility model embodiment provides, adds feeder on the basis of ups power
Power supply, the collaborative work of two-way power supply is realized by STS, ensure that the feeder power control circuit of feeder supplies
It is electric normal, so as to ensure that feeder can continuously be run with safety and stability, the safe and stable operation of unit is improved, and reduce day
The cost for changing UPS is safeguarded afterwards.
Shown in Figure 2 on the basis of above-described embodiment, STS includes the first static switch S1, second
Static switch S2 and logic controller.
Wherein, the first static switch S1 one end is the first input end of STS, and the other end is static conversion
The output end of switch；Second static switch S2 one end is the second input of STS, and the other end is static conversion
The output end of switch.Control terminal of the logic controller respectively with the first static switch S1 and the second static switch S2 is connected, and is used for
Control cut-offfing for the first static switch S1 and the second static switch S2.
In the utility model embodiment, two static switches are a kind of noncontacting switches, and each static switch is
It is made up of two controllable silicon (SCR) reverse parallel connections, its closed and disconnected is controlled by logic controller.Due to feeder power supply and
When frequency, the amplitude of two AC powers of UPS are all identical just can normal work in parallel, when some AC mains failure
When, euqalizing current will be produced between two power supplys, so that the output voltage of two parallel connection power supplies changes, influences to power
Reliability.The effect of static switch is turned off the power supply output broken down, and accomplishes inverter output and civil power bypass output
Between switching free of discontinuities.
It is shown in Figure 2 in a kind of possible implementation, the first collection terminal and the feeder power supply of logic controller
Interface is connected；Second collection terminal of logic controller is connected with UPS output end.In the utility model embodiment, logic control
Device also gathers the working condition of two alternating currents, when the voltage of preferred power supply all the way is beyond predetermined threshold value (such as load voltage value
Positive and negative 1 12 permissible range) when, automatically switch to standby two road power supply；When the voltage of preferred power supply all the way returns
When within to permissible range, preferred power supply all the way is automatically switched to again.And when feeder power supply (three-phase electricity in Fig. 1) powers off
When, UPS can continue as the power supply of feeder power control circuit.
In the present embodiment, STS can use existing equipment, can be in the case of uninterrupted power supply to two
Load between individual independent current source is either automatically or manually handled, and processing time is less than 6 milliseconds；All conversions are all quick
Break-before-make, dash current will not be produced between main power supply.
Optionally, shown in Figure 1, feeder control power supply also includes：Spare interface (a and b in Fig. 1)；It is standby
Connecting node between interface and the 3rd controlling switch QK3 and circuit breaker Q F1 is connected.The spare interface is used for for other needs surely
Determine equipment or the circuit power supply of power supply.
A kind of feeder control power supply that the utility model embodiment provides, adds feeder on the basis of ups power
Power supply, the collaborative work of two-way power supply is realized by STS, ensure that the feeder power control circuit of feeder supplies
It is electric normal, so as to ensure that feeder can continuously be run with safety and stability, the safe and stable operation of unit is improved, and reduce day
The cost for changing UPS is safeguarded afterwards.STS may be such that in the case of uninterrupted power supply between two independent current sources
Load either automatically or manually handled, processing time be less than 6 milliseconds；All conversions are all quick break-before-makes, main
Dash current will not be produced between stand-by power source.
The foregoing description to specific illustrative embodiment of the present utility model is to illustrate and the purpose of illustration.These
Description is not wishing to for the utility model to be defined to disclosed precise forms, and it will be apparent that according to above-mentioned teaching, can carry out
It is many to change and change.The purpose of selecting and describing the exemplary embodiment is that explain certain principles of the present utility model
And its practical application, so that those skilled in the art can realize and utilize a variety of examples of the present utility model
Property embodiment and various chooses and changes.The scope of the utility model is intended to by claims and its waits similar shape
Formula is limited.
Claims (4)
1. a kind of feeder controls power supply, it is characterised in that including：Feeder power interface, UPS, the first controlling switch, second
Controlling switch, STS, the 3rd controlling switch, breaker and feeder power control circuit；
The feeder power interface for receiving alternating current passes through first controlling switch and the STS
First input end be connected；The UPS passes through second controlling switch and the second input phase of the STS
Even；
The output end of the STS is connected by the 3rd controlling switch with the input of the breaker, described
The output end of breaker is connected with the feeder power control circuit.
2. feeder according to claim 1 controls power supply, it is characterised in that it is quiet that the STS includes first
State switch, the second static switch and logic controller；
One end of first static switch is the first input end of the STS, and the other end is the static conversion
The output end of switch；One end of second static switch is the second input of the STS, and the other end is institute
State the output end of STS；
Control terminal of the logic controller respectively with first static switch and second static switch is connected, for controlling
Make cut-offfing for first static switch and second static switch.
3. feeder according to claim 2 controls power supply, it is characterised in that the first collection terminal of the logic controller
It is connected with the feeder power interface；Second collection terminal of the logic controller is connected with the output end of the UPS.
4. feeder according to claim 1 controls power supply, it is characterised in that also includes：Spare interface；
Connecting node between the spare interface and the 3rd controlling switch and the breaker is connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720903188.XU CN206894347U (en) | 2017-07-24 | 2017-07-24 | Coal feeder control power supply |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720903188.XU CN206894347U (en) | 2017-07-24 | 2017-07-24 | Coal feeder control power supply |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206894347U true CN206894347U (en) | 2018-01-16 |
Family
ID=61297415
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720903188.XU Expired - Fee Related CN206894347U (en) | 2017-07-24 | 2017-07-24 | Coal feeder control power supply |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206894347U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108880336A (en) * | 2018-06-26 | 2018-11-23 | 山西天地王坡煤业有限公司 | Feeder power supply system for coal-gangue separation |
-
2017
- 2017-07-24 CN CN201720903188.XU patent/CN206894347U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108880336A (en) * | 2018-06-26 | 2018-11-23 | 山西天地王坡煤业有限公司 | Feeder power supply system for coal-gangue separation |
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180116 |