CN205004726U - Delay control protection circuit - Google Patents
Delay control protection circuit Download PDFInfo
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- CN205004726U CN205004726U CN201520418094.4U CN201520418094U CN205004726U CN 205004726 U CN205004726 U CN 205004726U CN 201520418094 U CN201520418094 U CN 201520418094U CN 205004726 U CN205004726 U CN 205004726U
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- relay
- delay control
- time timer
- normally open
- open contact
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Abstract
The utility model provides a delay control protection circuit, including warning circuit and delay control circuit, warning circuit is parallelly connected with the delay control circuit, warning circuit includes a relay coil, the 2nd relay coil, two accuse limit switch, a normally open contact and alarm, the delay control circuit includes time timer coil, time timer normally open contact, solenoid valve and second relay normally open contact. The utility model discloses add the delay control circuit, can effectively avoid appearing the wrong report alert with report to the police in the twinkling of an eye, when taking place the condition that hot -air pipes blockked up, can realize the automatic shutdown production line, it is higher to produce factor of safety.
Description
Technical field
The utility model relates to technical field of circuit control, is specifically related to a kind of delays time to control protective circuit.
Background technology
Along with socioeconomic fast development, keep the safety in production and more and more paid attention in industrial production, some automatic assembly lines need to install autoalarm.Such as, in plastic film production lines Material supply system, crystallization heating adopts Hot-blast Heating, raw material supply is too much or air quantity is excessive easily causes raw material to hoard in cyclone separator, when reaching a certain amount of, raw material then enters in hot air duct with hot blast, makes raw material adhesion in the heater, causes hot air duct to block, cause material combusting time serious, produce fire.
At present, adopt in industry in the cyclone separator of hot air duct system, install blocking rotary type level-sensing device additional, when the raw material in cyclone separator is stacked into more than safe altitude, blocking rotary type level-sensing device outputs signal to warning circuit, prompting site operation personnel process.But easily there is instantaneous accumulation or contact by mistake because feed particles quality is comparatively large in the raw material in cyclone separator, thus there is false alarm or instant alarm, operating efficiency reduces, and owing to there is the situation of false alarm, this warning device cannot realize automatically stopping production line when there is hot air duct blocking, and production safety coefficient is lower.
Utility model content
The utility model provides a kind of safe and reliable, delays time to control protective circuit accurately.
For solving the problems of the technologies described above, the utility model adopts following technical scheme:
A kind of delays time to control protective circuit, comprise warning circuit and delay control circuit, described warning circuit is in parallel with delay control circuit;
Described warning circuit comprises the first relay coil, the second relay coil, dual control limit switch, the first relay normally open contact and alarm, described alarm, the first relay coil and the second relay coil are in parallel successively, described first relay normally open contact is connected with the first relay coil, alarm respectively, and the first switch of described dual control limit switch and second switch are connected with the second relay coil, the first relay coil respectively;
Described delay control circuit comprises time timer coil, time timer normally opened contact, electromagnetically operated valve and the second relay normally open contact, described second relay normally open contact and described time timer coils connected in series, described time timer normally opened contact is connected with described electromagnetically operated valve, described second relay normally open contact and described time timer coil in parallel with time timer normally opened contact and described electromagnetically operated valve.
Preferably, described time timer adopts TIM10#0050.
Preferably, described alarm adopts alarm lamp.
From above technical scheme, the utility model adds delay control circuit, can effectively avoid occurring false alarm and instant alarm, and when there is the situation of hot air duct blocking, can realize automatically stopping production line, production safety coefficient is higher.
Accompanying drawing explanation
Fig. 1 is the circuit diagram of the utility model delays time to control protective circuit.
Embodiment
Below in conjunction with accompanying drawing, a kind of preferred implementation of the present utility model is described in detail.
As shown in Figure 1, the utility model provides a kind of delays time to control protective circuit, and comprise warning circuit 1 and delay control circuit 2, described warning circuit is in parallel with delay control circuit, connects and be electrical connection in the utility model.
Described warning circuit 1 comprises the first relay coil KM1, the second relay coil K2, dual control limit switch SQ, the first relay normally open contact KM1 ' and alarm P, described alarm P, the first relay coil KM1 and the second relay coil KM2 are in parallel successively, described first relay normally open contact KM1 ' connects with the first relay coil KM1, alarm P respectively, and the first switch S 1 of described dual control limit switch and second switch S2 connect with the second relay coil KM2, the first relay coil KM1 respectively.
Described delay control circuit 2 comprises time timer coil TIM, time timer normally opened contact TIM ', electromagnetically operated valve YV and the second relay normally open contact KM2 ', described second relay normally open contact KM2 ' connects with described time timer coil TIM, described time timer normally opened contact TIM ' connects with described electromagnetically operated valve YV, described second relay normally open contact and described time timer coil in parallel with time timer normally opened contact and described electromagnetically operated valve.
When dual control limit switch SQ closes, the first relay coil KM1 and the second relay coil KM2 is energized adhesive simultaneously, and the first relay normally open contact KM1 ' closes self-locking, and keep the first relay coil KM1 to be energized adhesive, now alarm P keeps operating state.Second relay normally open contact KM2 ' closes, and time timer coil TIM is energized, and after meeting time timer setting delay time, time timer normally opened contact TIM ' closes, described electromagnetically operated valve YV energising action.
Embodiment 1:
In the present embodiment, the delays time to control protective circuit that the utility model proposes is applied in plastic film production lines Material supply system safety device.
In the present embodiment, electromagnetically operated valve is used for the rotary valve of system feed(raw material)inlet, dual control limit switch is a kind of blocking rotary type level-sensing device, can be used for detecting the raw material material level piled up in cyclone separator, when raw material material level exceeds safety value, first switch enclosure second switch of dual control limit switch is closed simultaneously, the utility model delays time to control protective circuit works, wherein time timer deferred action, only have when raw material material level exceed the safety value duration reach timer setting delay time time, time timer coil TM just meeting conducting, thus close Controlling solenoid valve disconnection rotary valve by time timer normally opened contact TM, raw material supply stops.Alarm is always in running order during this period, and field personnel can be reminded to process in time.The setting delay time of time timer according to the setting parameter producing product, can adopt TIM10#0050 in the present embodiment, and described alarm adopts alarm lamp, and can be directly installed on Control Room, the very first time reports to the police.
The above execution mode is only be described preferred implementation of the present utility model; not scope of the present utility model is limited; under the prerequisite not departing from the utility model design spirit; the various distortion that those of ordinary skill in the art make the technical solution of the utility model and improvement, all should fall in protection range that claims of the present utility model determine.
Claims (2)
1. a delays time to control protective circuit, is characterized in that, comprise warning circuit (1) and delay control circuit (2), described warning circuit is in parallel with delay control circuit;
Described warning circuit (1) comprises the first relay coil (KM1), the second relay coil (KM2), dual control limit switch (SQ), the first relay normally open contact (KM1 ') and alarm (P), described alarm, the first relay coil and the second relay coil are in parallel successively, described first relay normally open contact is connected with the first relay coil, alarm respectively, and the first switch of described dual control limit switch and second switch are connected with the second relay coil, the first relay coil respectively;
Described delay control circuit (2) comprises time timer coil (TIM), time timer normally opened contact (TIM '), electromagnetically operated valve (YV) and the second relay normally open contact (KM2 '), described second relay normally open contact and described time timer coils connected in series, described time timer normally opened contact is connected with described electromagnetically operated valve, described second relay normally open contact and described time timer coil in parallel with time timer normally opened contact and described electromagnetically operated valve.
2. delays time to control protective circuit according to claim 1, is characterized in that, described alarm adopts alarm lamp.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520418094.4U CN205004726U (en) | 2015-06-17 | 2015-06-17 | Delay control protection circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520418094.4U CN205004726U (en) | 2015-06-17 | 2015-06-17 | Delay control protection circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205004726U true CN205004726U (en) | 2016-01-27 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520418094.4U Active CN205004726U (en) | 2015-06-17 | 2015-06-17 | Delay control protection circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205004726U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107241520A (en) * | 2017-05-27 | 2017-10-10 | 安徽沪宁智能科技有限公司 | A kind of intelligent electromechanical integration teaching equipment system |
| CN109443482A (en) * | 2018-09-29 | 2019-03-08 | 南京化学工业园热电有限公司 | Electric precipitation ash bucket level measurement warning device, alarm method and alarm method of calibration |
| CN112013278A (en) * | 2019-05-29 | 2020-12-01 | 中国石油天然气股份有限公司 | Emergency stop device for gas transmission station |
-
2015
- 2015-06-17 CN CN201520418094.4U patent/CN205004726U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107241520A (en) * | 2017-05-27 | 2017-10-10 | 安徽沪宁智能科技有限公司 | A kind of intelligent electromechanical integration teaching equipment system |
| CN109443482A (en) * | 2018-09-29 | 2019-03-08 | 南京化学工业园热电有限公司 | Electric precipitation ash bucket level measurement warning device, alarm method and alarm method of calibration |
| CN112013278A (en) * | 2019-05-29 | 2020-12-01 | 中国石油天然气股份有限公司 | Emergency stop device for gas transmission station |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: 230088 No.1000, Mingchuan Road, high tech Zone, Hefei City, Anhui Province Patentee after: Anhui Guofeng New Material Co.,Ltd. Address before: Tianzhi Road, national high tech Industrial Development Zone, Hefei City, Anhui Province, No. 36 230088 Patentee before: ANHUI GUOFENG PLASTIC CO.,LTD. |
|
| CP03 | Change of name, title or address |