CN207622221U - A kind of workshop air controlled system with self-regulation based on PLC - Google Patents
A kind of workshop air controlled system with self-regulation based on PLC Download PDFInfo
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- CN207622221U CN207622221U CN201721792053.7U CN201721792053U CN207622221U CN 207622221 U CN207622221 U CN 207622221U CN 201721792053 U CN201721792053 U CN 201721792053U CN 207622221 U CN207622221 U CN 207622221U
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Abstract
The utility model discloses a kind of, and the workshop air controlled system with self-regulation based on PLC includes：The middle control cabinet being set in Central Control Room, interior to be equipped with PLC controller, the input terminal of the PLC controller is electrically connected These field control modules；Analog input mModule is connect by 485 buses with the PLC controller, and the Analog input mModule is connect with the Temperature and Humidity unit and harmful gas concentration detection unit being arranged in workshop by data line；Output end electrical connection air inlet fan control module, exhaust blower control module and the heat exchanger control module of the PLC controller; main function be in workshop harmful gas concentration and environment temperature etc. be detected; it is grouped the start and stop into, exhaust blower according to concentration and temperature automatic control; if certain time inner blower, which all starts, can't reduce harmful gas concentration; it reaches the limit values and just sends out sound-light alarm immediately; it reminds shop personnel to withdraw, protects personal safety.
Description
Technical field
The utility model belongs to control system field, and in particular to the workshop air automatic adjustment based on PLC controller
Control system field.
Background technology
For past people in Workshop Production, the understanding to the production environment in workshop is all according to the temperature being arranged in workshop
The numerical value that hygrometer is shown, pair is by artificial Timing measurement with the toxic and harmful gas in workshop, and the environment in workshop is
Continuously, change, therefore it cannot meet the measurement to present workshop high intensity production environment；
With the continuous development of control technology, industrial automation level is higher and higher.By intelligent equipment and advanced
Control technology, automation control is at many aspects instead of manual operation.Factory inevitably will produce a part in production process
Pernicious gas, the hazardous events that pernicious gas leakage is brought also often occur, and environment of plant temperature is excessively high, and dust is overweight also unfavorable
In the physical and mental health of employee；
This project devises a set of air controlled system with self-regulation for the problem, and main function is in workshop
Harmful gas concentration and environment temperature etc. are detected, and the start and stop into, exhaust blower are grouped according to concentration and temperature automatic control, if
Certain time inner blower, which all starts, can't reduce harmful gas concentration, reach the limit values and just send out sound-light alarm immediately, carry
Awake shop personnel withdraw, and protect personal safety.
Utility model content
One purpose of the utility model is to solve at least the above and/or defect, and provide and at least will be described later
The advantages of.
In order to realize these purposes and other advantages according to the present utility model, it is empty to provide a kind of workshop based on PLC
Gas controlled system with self-regulation, including：
The middle control cabinet being set in Central Control Room, interior to be equipped with PLC controller, the input terminal of the PLC controller is electrically connected
These field control modules；
Analog input mModule is connect by 485 buses with the PLC controller, the Analog input mModule with
The Temperature and Humidity unit being arranged in workshop is connected with harmful gas concentration detection unit by data line；
Output end electrical connection air inlet fan control module, exhaust blower control module and the heat exchanger control of the PLC controller
Molding block.
Preferably, wherein the These field control modules are connect with the field controller data line being arranged in workshop.
Preferably, wherein the air inlet fan control module and several air inlet mechatronics in workshop, the exhaust blower
Control module and several air draft mechatronics in workshop, several air inlet fans are mounted on the bottom in workshop, several rows
Top of the assembling in workshop.
Preferably, wherein the heat exchanger control module is electrically connected with the heat exchanger being arranged at air inlet fan mouth.
Preferably, wherein the Temperature and Humidity unit includes：Digital temperature sensor and digital humidity sensor,
The digital temperature sensor and digital humidity sensor are connect with Analog input mModule signal wire.
Preferably, wherein the harmful gas concentration detection unit includes：Several fixed poisonous gas detecting instruments, institute
The mounting height of fixed poisonous gas detecting instrument is stated in the range of 1.5m~1.9m, the fixed poisonous gas detecting instrument passes through
Data line is connected with Analog input mModule.
Preferably, wherein the output end of the PLC controller is electrically connected a sound-light alarm control module, the sound
Light alarm control module is electrically connected with the audible-visual annunciator being arranged in workshop.
Preferably, wherein the PLC controller is electrically connected with communication module, the communication module and DCS control systems
It is bi-directionally connected.
Preferably, wherein the PLC controller output end is electrically connected with data transmission module, the data transmission mould
Block is electrically connected with the display in Central Control Room.
Preferably, wherein the output end of the PLC controller is electrically connected with spray thrower control module, the spray thrower
Control module is electrically connected with the spray deduster for being arranged in workshop top.
The utility model includes at least following advantageous effect：This workshop air controlled system with self-regulation is built-in with PLC controls
Device processed can receive the data-signal sent at Temperature and Humidity unit and harmful gas concentration detection unit, and be controlled according to PLC
Algorithm built in device processed is handled to receiving data and is judged and control into, the operation of exhaust blower and heat exchanger, plays drop
The effect of harmful gas concentration and environment temperature in low workshop；Its whole process is not required to artificial intervention by computer control and then is realized
Intelligentized control method, simultaneously as whole process is all judged by system, operation accuracy is higher.
Part is illustrated to embody by the further advantage, target and feature of the utility model by following, and part will also pass through
Research and practice to the utility model and be understood by the person skilled in the art.
Description of the drawings：
Fig. 1 is the control flow chart of the workshop air controlled system with self-regulation provided by the utility model based on PLC；
Fig. 2 is the schematic diagram of the workshop air controlled system with self-regulation provided by the utility model based on PLC.
Specific implementation mode：
The following describes the utility model in further detail with reference to the accompanying drawings, to enable those skilled in the art with reference to explanation
Book word can be implemented according to this.
It should be appreciated that such as " having ", "comprising" and " comprising " term used herein do not allot one or more
The presence or addition of a other elements or combinations thereof.
A kind of workshop air controlled system with self-regulation based on PLC provided by the utility model as shown in Figs. 1-2, packet
It includes：
The middle control cabinet 101 being set in Central Control Room, it is interior to be equipped with PLC controller 1, the input terminal electricity of the PLC controller 1
Connect These field control modules 2；
Analog input mModule 3 connect 1 with the PLC controller, the Analog input mModule 3 by 485 buses
It is connect by data line with the Temperature and Humidity unit 4 and harmful gas concentration detection unit 5 being arranged in workshop；
Output end electrical connection air inlet fan control module 6, exhaust blower control module 7 and the heat exchanger of the PLC controller 1
Control module 8.
Operation principle：Temperature and Humidity unit 4 and harmful gas concentration detection unit 5 are by the data of the Temperature and Humidity module of plant site
It is sent to Analog input mModule 3 with harmful gas concentration data, each item data is converted into PLC in Analog input mModule 3
The data that controller 1 can identify, each item data in PLC controller 1 by 485 bus transfers to PLC controller 1, being built-in with
A set of algorithm is provided with toxic and harmful gas lower limiting value m, upper limit value w in algorithm, and two stages of a, b are equipped between m, w value
The simulation that value (herein for example, can as the case may be setup phase value quantity) harmful gas concentration detection unit 5 is sent
Value k is compared in PLC controller 1 with w, m, a, b value, and as k >=m, PLC controller 1 sends instructions to air inlet fan control
Module 6 and exhaust blower control module 7 open one group of air inlet fan and exhaust blower instruction；When a≤k ＜ b values, then increase by second group
The operation instruction of air inlet fan and exhaust blower；As b≤k ＜ w, then increase the instruction of third group air inlet fan and exhaust blower operating；PLC
Temperature upper limit value p and upper limit value q is equipped in controller 1, temperature value i is passed through Analog input mModule 3 by Temperature and Humidity unit 4
It is sent into PLC controller 1 and is compared, when i values are more than q values, then 1 heat exchanging device control module 8 of PLC controller sends cooling
Instruction, when i is less than p value value, 1 heat exchanging device control module 8 of PLC controller sends halt instruction；In the intelligence fortune of this system
Row it is lower, it can be achieved that in workshop air quality and temperature carry out controlling continuous control in real time；These field control modules 2 can connect
Hand control switch is connect, the case where wind turbine cannot be turned on and off when PLC controller 1 being avoided to break down, this system energy
It is continuous continual to air quality adjusting in control workshop, ensure the physical and mental health of staff.
In above-mentioned technical proposal, the These field control modules 2 and 201 data line of field controller being arranged in workshop
Connection, when PLC controller 1 breaks down, field controller 201 can be turned off manually or open wind turbine, avoid the poly- of pernicious gas
Collection.Such mode is a kind of preferable example, but not limited to this, it can carry out suitably replacing and/or changing as needed.
In above-mentioned technical proposal, the air inlet fan control module 6 is electrically connected with several air inlet fans 601 in workshop, institute
It states exhaust blower control module 7 to be electrically connected with several exhaust blowers 701 in workshop, several air inlet fans 601 are mounted on workshop
Bottom, several exhaust blowers 701 are mounted on the top in workshop, and the density of pernicious gas is generally higher than the density of air, then
Air inlet fan can effectively ensure that the height in workshop residing for operating personnel has good sky from lower air blast, exhaust blower from upper air draft
Makings amount, there is no the aggregations of a large amount of pernicious gases in the height of operating personnel's breathing.Such mode is a kind of preferable
Example, but not limited to this, can carry out as needed suitably replace and/or change.
In above-mentioned technical proposal, the heat exchanger control module 8 and the heat exchanger 801 being arranged at 601 mouthfuls of air inlet fan
Electrical connection, heat exchanger control module 8 carry out switch control according to instruction heat exchanging device 801 is received, and the setting of heat exchanger 801 is existed
Be conducive to blasting for hot wind at 601 mouthfuls of air inlet fan.Such mode is a kind of preferable example, but not limited to this, it can basis
It needs to carry out suitably to replace and/or change.
In above-mentioned technical proposal, the Temperature and Humidity unit 4 includes：Digital temperature sensor 401 and Digital Humidity
Sensor 402, the digital temperature sensor 401 and digital humidity sensor 402 connect with 3 signal wire of Analog input mModule
It connects.Such mode is a kind of preferable example, but not limited to this, it can carry out suitably replacing and/or changing as needed.
In above-mentioned technical proposal, the harmful gas concentration detection unit 5 includes：Several fixed poisonous gas detecting instruments
501, the mounting height of the fixed poisonous gas detecting instrument 501 is in the range of 1.5m~1.9m, the fixed toxic gas
Detector 501 is connected by data line with Analog input mModule 3, and fixed poisonous gas detecting instrument 501 is mounted on 1.5m
The reason of height of~1.9m is：The average height of people is in 1.5m~1.9m, then fixed poisonous gas detecting instrument 501 is main
The concentration of toxic gases for measuring this height to prepare to measure the quality of the air of personnel's sucking, and then effectively ensures to make personnel
Physical and mental health.Such mode is a kind of preferable example, but not limited to this, can carry out as needed suitably replace and/
Or modification.
In above-mentioned technical proposal, the output end of the PLC controller 1 is electrically connected a sound-light alarm control module 9, institute
It states sound-light alarm control module 9 to be electrically connected with the audible-visual annunciator 901 being arranged in workshop, be set in PLC controller 1 there are one having
Poisonous gas upper limit value w, as k ＞ w, i.e., harmful gas concentration alreadys exceed the ability that system is adjustably controlled, PLC controls at this time
Device 1 sends out instruction to sound-light alarm control module 9, and sound-light alarm control module 9 controls the alarm of audible-visual annunciator 901, warning again
Operating personnel's emergency evacuation in workshop.Such mode is a kind of preferable example, but not limited to this, can as needed into
Row is appropriate to be replaced and/or changes.
In above-mentioned technical proposal, the PLC controller 1 is electrically connected with communication module 11, the communication module 11 and DCS
Control system 112 is bi-directionally connected, convenient for the setting that the algorithm in PLC controller 1 is write and is worth.Such mode is one
The preferable example of kind, but not limited to this, it can carry out suitably replacing and/or changing as needed.
In another technical solution, 1 output end of the PLC controller is electrically connected with data transmission module 12, the number
Be electrically connected with the display 121 in Central Control Room according to transmission module 12, display 121 can show whole system operating status and
Each item data carries out the quick processing of abnormal conditions convenient for the personnel in Central Control Room.Such mode is a kind of preferable example,
But not limited to this, it can carry out suitably replacing and/or changing as needed.
In another technical solution, the output end of the PLC controller 1 is electrically connected with spray thrower control module 13, institute
It states spray thrower control module 13 to be electrically connected with the spray deduster 131 for being arranged in workshop top, PLC controller 1 is built-in with workshop
Humidity target interval value, when the air humidity value that Temperature and Humidity unit 4 is sent to PLC controller 1 be less than humidity interval value, this
When 131 control module of spray deduster will open spray deduster 131 to increase the humidity in workshop, to reduce the powder in workshop
Dust concentration avoids the generation of dust explosion accident.Such mode is a kind of preferable example, but not limited to this, it can basis
It needs to carry out suitably to replace and/or change.
Number of devices and treatment scale described herein are the explanations for simplifying the utility model.To the utility model
The application of the workshop air controlled system with self-regulation based on PLC, modifications and variations be to one skilled in the art
Obviously.
It is not only in the description and the implementation although the embodiments of the present invention have been disclosed as above
Listed utilization, it can be applied to various fields suitable for the present invention completely, for those skilled in the art,
Other modifications may be easily implemented, therefore without departing from the general concept defined in the claims and the equivalent scope, this reality
It is not limited to specific details and legend shown and described herein with novel.
Claims (10)
1. a kind of workshop air controlled system with self-regulation based on PLC, which is characterized in that including：
The middle control cabinet being set in Central Control Room, it is interior to be equipped with PLC controller, the input terminal electrical connection scene of the PLC controller
Control module；
Analog input mModule is connect by 485 buses with the PLC controller, the Analog input mModule and setting
Temperature and Humidity unit in workshop is connected with harmful gas concentration detection unit by data line；
Output end electrical connection air inlet fan control module, exhaust blower control module and the heat exchanger of the PLC controller control mould
Block.
2. the workshop air controlled system with self-regulation based on PLC as described in claim 1, which is characterized in that the scene
Control module is connect with the field controller data line being arranged in workshop.
3. the workshop air controlled system with self-regulation based on PLC as described in claim 1, which is characterized in that the air inlet
Machine control module and several air inlet mechatronics in workshop, the exhaust blower control module and several air drafts in workshop are electromechanical
Connection, several air inlet fans are mounted on the bottom in workshop, and several exhaust blowers are mounted on the top in workshop.
4. the workshop air controlled system with self-regulation based on PLC as claimed in claim 3, which is characterized in that the heat exchange
Device control module is electrically connected with the heat exchanger for being arranged in air inlet fan exit.
5. the workshop air controlled system with self-regulation based on PLC as described in claim 1, which is characterized in that described warm and humid
Spending detection unit includes：Digital temperature sensor and digital humidity sensor, the digital temperature sensor and Digital Humidity pass
Sensor is connect with Analog input mModule signal wire.
6. the workshop air controlled system with self-regulation based on PLC as described in claim 1, which is characterized in that described harmful
Gas concentration detection unit includes：Several fixed poisonous gas detecting instruments, the mounting height of the fixed poisonous gas detecting instrument
In the range of 1.5m~1.9m, the fixed poisonous gas detecting instrument is connected by data line with Analog input mModule.
7. the workshop air controlled system with self-regulation based on PLC as described in claim 1, which is characterized in that the PLC controls
The output end of device processed is electrically connected a sound-light alarm control module, the sound-light alarm control module and the sound being arranged in workshop
Light crossing-signal is electrically connected.
8. the workshop air controlled system with self-regulation based on PLC as described in claim 1, which is characterized in that the PLC controls
Device processed is electrically connected with communication module, and the communication module is bi-directionally connected with DCS control systems.
9. the workshop air controlled system with self-regulation based on PLC as described in claim 1, which is characterized in that the PLC controls
Device output end processed is electrically connected with data transmission module, and the data transmission module is electrically connected with the display in Central Control Room.
10. the workshop air controlled system with self-regulation based on PLC as described in claim 1, which is characterized in that the PLC
The output end of controller is electrically connected with spray thrower control module, the spray thrower control module and the spray in workshop top is arranged
Deduster is electrically connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721792053.7U CN207622221U (en) | 2017-12-20 | 2017-12-20 | A kind of workshop air controlled system with self-regulation based on PLC |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721792053.7U CN207622221U (en) | 2017-12-20 | 2017-12-20 | A kind of workshop air controlled system with self-regulation based on PLC |
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| Publication Number | Publication Date |
|---|---|
| CN207622221U true CN207622221U (en) | 2018-07-17 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201721792053.7U Active CN207622221U (en) | 2017-12-20 | 2017-12-20 | A kind of workshop air controlled system with self-regulation based on PLC |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112974094A (en) * | 2021-03-03 | 2021-06-18 | 上海威龙洗涤经营有限公司 | Movable multifunctional spray room |
-
2017
- 2017-12-20 CN CN201721792053.7U patent/CN207622221U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112974094A (en) * | 2021-03-03 | 2021-06-18 | 上海威龙洗涤经营有限公司 | Movable multifunctional spray room |
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