CN203584855U - Shunt-release firefighting linkage fan distribution box for transformer substations - Google Patents
Shunt-release firefighting linkage fan distribution box for transformer substations Download PDFInfo
- Publication number
- CN203584855U CN203584855U CN201320713522.7U CN201320713522U CN203584855U CN 203584855 U CN203584855 U CN 203584855U CN 201320713522 U CN201320713522 U CN 201320713522U CN 203584855 U CN203584855 U CN 203584855U
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- Prior art keywords
- contactor
- shunt
- release
- distribution box
- shunt release
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- Expired - Lifetime
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- 238000009423 ventilation Methods 0.000 claims abstract description 21
- 230000005611 electricity Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 238000009429 electrical wiring Methods 0.000 description 3
- 230000004224 protection Effects 0.000 description 3
- 239000003517 fume Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
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Abstract
The utility model relates to a shunt-release firefighting linkage fan distribution box for transformer substations. The shunt-release firefighting linkage fan distribution box is mainly applied to power supply and control of indoor ventilation fans. A main electric circuit of the distribution box comprises a primary control circuit and a secondary control circuit. The primary control circuit is provided with a breaker QF, a shunt release MX and normally open contacts of contactors KM1 and KM2. The breaker QF, the shunt release MX and the normally open contacts of the contactors KM1 and KM2 are connected in sequence. Two ends of the contactor KM1 are connected with a ventilation fan M and the shunt release MX respectively. The secondary control circuit is provided with a manual switch K, a coil of the shunt release MX, a temperature controller KH, the contactor KM1, the contactor KM2, a fuse FU1 and a fuse FU2. On the condition of automatic control, the ventilation fan is automatically powered on to start when the indoor temperature exceeds a limiting level; the ventilation fan can be manually controlled to start when the indoor temperature is lower than the limiting level or the temperature controller is broken down. Linkage of the ventilation fan and a fire fighting system is realized through series connection of fire alarm system signal contacts in the control circuits, and accordingly, firefighting requirements can be met.
Description
Technical field
The utility model relates to band shunt release fire-fighting linkage blower fan distribution box for electric substation, and the electricity supply and control that is mainly used in indoor ventilation fan is used.
Background technique
In the buildings such as the switchgear room of current electric substation, control room, be generally all provided with ventilation blower fan (the general <3kW of every Fans power).In engineering reality, because of outdoor environment temperature and equipment work heat radiation factor, room temperature easily surpasses the requirement of equipment normal working temperature.Therefore, rationally control the work of ventilation blower fan, reduce operation expense, and the required value of satisfied ventilation blower fan and fire-fighting link must be inquired into.
Summary of the invention
For solving above technical problem, the utility model proposes band shunt release fire-fighting linkage blower fan distribution box for electric substation, this distribution box can rationally be controlled the work of ventilation blower fan, reduces operation expense, and satisfied ventilation blower fan and fire-fighting link.
For realizing above goal of the invention, the utility model proposes a kind of technological scheme: band shunt release fire-fighting linkage blower fan distribution box for electric substation, its main body electric loop comprises control loop one time, secondary control loop, a described control loop is provided with the circuit breaker Q F connecting successively, shunt release MX and contactor KM1, contactor KM2 normal opened contact, contactor KM1 two ends respectively with ventilation blower fan M, shunt release MX connects, secondary control loop is provided with hand switch K, shunt release MX coil, temp controller KH, contactor KM1, contactor KM2, fus FU1 and fus FU2, temp controller KH two ends are connected to Ac by fus respectively, the circuit that after temp controller KH output contact is in parallel with hand switch K, series contactor KM1 coil forms is again in parallel with temp controller KH, contactor KM2 normal opened contact is in parallel with temp controller KH after connecting with shunt release MX coil, contactor KM2 coil is connected in fire alarm circuit.
The utility model, for ventilation blower fan electricity supply and control in the buildings such as substation control buildings, control room, adopts automatically and controls when ventilation blower fan is normal.While automatically controlling, when room temperature surpasses limit value (35 ℃), ventilation blower fan automatically switches on power and starts working.When room temperature lower than or during temp controller fault, can manually control ventilation fan starting.Meanwhile, by be connected in series fire alarm system signal contact (closed when fire occurs) in control loop, realize the interlock of ventilation blower fan and fire-fighting system, can meet fire-fighting requirement.
Accompanying drawing explanation
Fig. 1 is the electrical wiring schematic diagram of a control loop of the utility model embodiment;
Fig. 2 is the main electrical wiring schematic diagram of the utility model embodiment secondary control loop;
Fig. 3 is the electrical wiring schematic diagram of the utility model embodiment fire alarm circuit.
Embodiment
Referring to accompanying drawing 1-Fig. 3, band shunt release fire-fighting linkage blower fan distribution box for the utility model embodiment electric substation, its main body electric loop comprises control loop one time, secondary control loop, a described control loop is provided with the circuit breaker Q F connecting successively, shunt release MX and contactor KM1, contactor KM2 normal opened contact, contactor KM1 two ends respectively with ventilation blower fan M, shunt release MX connects, secondary control loop is provided with hand switch K, shunt release MX coil, temp controller KH, contactor KM1, contactor KM2, fus FU1 and fus FU2, temp controller KH two ends are connected to Ac by fus respectively, the circuit that after temp controller KH output contact is in parallel with hand switch K, series contactor KM1 coil forms is again in parallel with temp controller KH, contactor KM2 normal opened contact is in parallel with temp controller KH after connecting with shunt release MX coil, contactor KM2 coil is connected in fire alarm circuit.
Circuit breaker is generally closed state, and the main protections such as the short circuit current protection of current supply circuit are realized by circuit breaker, and contactor is only as the use of the control loop of switch.Under normal working, hand switch K is in off state, breaker closing, and fire alarm system signal contact disconnects, contactor KM2 coil blackout, its normal opened contact is in off state, shunt release MX coil blackout.Now, by the folding of temp controller KH control loop,, when surpassing the temperature parameter (35 ℃) of temp controller KH setting, temp controller KH output contact is closed, and contactor KM1 wire loop switches on power, KM1 action, each output loop power supply.Manually-operable is according to actual requirement, to operate manual K switch when patrol officer patrols and examines, and then disconnects as required or closed each circuit breaker.When fire alarm system is sent closure signal, the fire alarm system signal contact sealing in is closed, contactor KM2 coil electricity, its normal opened contact is closed, the circuit breaker Q F tripping operation simultaneously of shunt release MX coil electricity, the power-off of blower fan major loop, ventilation blower fan quits work.
Fire-fighting link ventilation blower fan distribution box comprises control box main body, in casing front, is furnished with door lock, nameplate, and a transparent window is set specially, patrol officer can see through window and check situation in case.In addition, hand switch K is arranged at outdoor doorway, and after fire signal is removed, patrol officer can discharge fume in on-site manual unlatching, facilitates patrol officer to inspect, and ensures patrol officer's personal safety.
Following content is the further description of the utility model being done in conjunction with concrete mode of execution, can not assert that concrete enforcement of the present utility model is confined to these explanations.For the those of ordinary skill of the technical field under the utility model, without departing from the concept of the premise utility, can also make some simple deduction or replace, all should be considered as belonging to protection domain of the present utility model.
Claims (1)
1. electric substation is with being with shunt release fire-fighting linkage blower fan distribution box, it is characterized in that: its main body electric loop comprises control loop one time, secondary control loop, a described control loop is provided with the circuit breaker Q F connecting successively, shunt release MX and contactor KM1, contactor KM2 normal opened contact, contactor KM1 two ends respectively with ventilation blower fan M, shunt release MX connects, secondary control loop is provided with hand switch K, shunt release MX coil, temp controller KH, contactor KM1, contactor KM2, fus FU1 and fus FU2, temp controller KH two ends are connected to Ac by fus respectively, the circuit that after temp controller KH output contact is in parallel with hand switch K, series contactor KM1 coil forms is again in parallel with temp controller KH, contactor KM2 normal opened contact is in parallel with temp controller KH after connecting with shunt release MX coil, contactor KM2 coil is connected in fire alarm circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320713522.7U CN203584855U (en) | 2013-11-13 | 2013-11-13 | Shunt-release firefighting linkage fan distribution box for transformer substations |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320713522.7U CN203584855U (en) | 2013-11-13 | 2013-11-13 | Shunt-release firefighting linkage fan distribution box for transformer substations |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203584855U true CN203584855U (en) | 2014-05-07 |
Family
ID=50582786
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320713522.7U Expired - Lifetime CN203584855U (en) | 2013-11-13 | 2013-11-13 | Shunt-release firefighting linkage fan distribution box for transformer substations |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203584855U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104632672A (en) * | 2013-11-13 | 2015-05-20 | 武汉联动设计股份有限公司 | Fire-fighting linkage draught fan power distribution box provided with shunt release and used for substation |
| CN108064090A (en) * | 2017-12-31 | 2018-05-22 | 广州市大弘自动化科技有限公司 | A kind of electric heating system |
-
2013
- 2013-11-13 CN CN201320713522.7U patent/CN203584855U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104632672A (en) * | 2013-11-13 | 2015-05-20 | 武汉联动设计股份有限公司 | Fire-fighting linkage draught fan power distribution box provided with shunt release and used for substation |
| CN108064090A (en) * | 2017-12-31 | 2018-05-22 | 广州市大弘自动化科技有限公司 | A kind of electric heating system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140507 |
|
| CX01 | Expiry of patent term |