CN105739581A - PLC-based temperature and humidity equalization control system - Google Patents
PLC-based temperature and humidity equalization control system Download PDFInfo
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- CN105739581A CN105739581A CN201610181924.5A CN201610181924A CN105739581A CN 105739581 A CN105739581 A CN 105739581A CN 201610181924 A CN201610181924 A CN 201610181924A CN 105739581 A CN105739581 A CN 105739581A
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- temperature
- humidity
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- production line
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
- G05D27/00—Simultaneous control of variables covered by two or more of main groups G05D1/00 - G05D25/00
- G05D27/02—Simultaneous control of variables covered by two or more of main groups G05D1/00 - G05D25/00 characterised by the use of electric means
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B19/00—Programme-control systems
- G05B19/02—Programme-control systems electric
- G05B19/04—Programme control other than numerical control, i.e. in sequence controllers or logic controllers
- G05B19/05—Programmable logic controllers, e.g. simulating logic interconnections of signals according to ladder diagrams or function charts
Abstract
The invention discloses a PLC-based temperature and humidity equalization control system. The control system comprises a temperature sensor, a humidity sensor, a material sensor and a PLC control module; the temperature sensor is used to detect temperature in a production line and send a detected temperature value to the PLC control module; the humidity sensor is used to detect humidity in the production line and send a detected humidity value to the PLC control module; the material sensor is used to detect a material remaining amount at a feeding port and send the detected material remaining amount to the PLC control module; the PLC control module is used to adjust the temperature and the humidity in the production line in real time according to the temperature value sent by the temperature sensor and the humidity value sent by the humidity sensor and adjust a material feeding amount of the feeding port of the production line according to the material remaining amount sent by the material sensor so that equalization of the temperature and the humidity in the production line and stable supply of materials are achieved.
Description
Technical field
The present invention relates to industrial control field, particularly relate to a kind of temperature humidity balance control system based on PLC.
Background technology
Temperature is physical quantity most basic in life and production, and in nature, any physics, chemical process are associated with temperature all closely.In a lot of production processes, the measurement of temperature and control are all directly associated with production safety, raising production efficiency, the product quality that ensures, the saving great technical-economic index of the energy.Since 18th century, industrial process be unable to do without temperature and controls.Temperature controls to be widely used in the every field of social life, and the control method of temperature controlled precision and different control object selects all to play vital effect.Based on this, use evolution of feedback controlling theory that temperature is accurately controlled, meet industrial demand, improve the productivity.
Present many control appliance of temperature and humidity are simply applied to indoor, and in industrial processes, generally require the temperature humidity homeostasis controlled in production line, and the various physical quantitys that the temperature humidity pressure etc. in production line affects production process carry out monitor in real time, to reach higher production efficiency.
Therefore, it is necessary to provide a kind of to be applied to industrial circle, the temperature humidity that can be comparatively accurately controlled in production line, and the various physical quantitys in production process are carried out the control system of monitor in real time.
Summary of the invention
One, to solve the technical problem that
It is an object of the invention to the problems referred to above existing for prior art, a kind of temperature humidity balance control system based on PLC of special offer, to solve temperature humidity can not comparatively accurately be controlled by production process, it is impossible to the problem that production process is carried out monitoring in real time.
Two, technical scheme
For solving above-mentioned technical problem, the present invention provides a kind of temperature humidity balance control system based on PLC, utilizes steam-heated production line for control, and described control system includes: temperature sensor, humidity sensor, Material Sensor and PLC control module；Described temperature sensor, humidity sensor and Material Sensor all control module with described PLC and electrically connect；Described temperature sensor is for detecting the temperature in production line, and is sent by the temperature value of detection to described PLC control module；Described humidity sensor is for detecting the humidity in production line, and is sent by the humidity value of detection to described PLC control module；Described Material Sensor is for detecting the material surplus of production line charging aperture, and the material surplus of detection is sent to described PLC control module；Described PLC controls module and for temperature value and the humidity value sent according to described temperature sensor and humidity sensor, the temperature and humidity in production line is adjusted in real time, according to the material surplus that described Material Sensor sends, the size of the inlet amount of production line charging aperture is adjusted in real time.
Wherein, above-mentioned based in the temperature humidity balance control system of PLC, described PLC is controlled module and by the PID adjustment module within PLC, the temperature and humidity in production line is adjusted in real time.
Wherein, above-mentioned based in the temperature humidity balance control system of PLC, described temperature sensor includes many sub-temperature sensors, every corresponding heating coil of sub-temperature sensor and a PID adjustment module, when any one sub-temperature sensor detects the temperature value in its detection range higher than preset temperature value, the PID adjustment module corresponding with this sub-temperature sensor controls the heating coil corresponding with this sub-temperature sensor and stops heating, when any one sub-temperature sensor detects the temperature in its detection range lower than preset temperature value, the PID adjustment module corresponding with this sub-temperature sensor controls the heating coil corresponding with this sub-temperature sensor and opens heating；Wherein, heating coil is for being heated the steam in production line.
Wherein, above-mentioned based in the temperature humidity balance control system of PLC, when described humidity sensor detects the humidity value in production line lower than default humidity value, the PID adjustment module corresponding with this humidity sensor controls damping device and production line inside is added wet process, when described humidity sensor detects that the humidity value in production line is higher than when presetting humidity value, the PID adjustment module corresponding with this humidity sensor controls drying device and production line inside is dried process.
Wherein, above-mentioned based in the temperature humidity balance control system of PLC, described control system also includes: delay detection module, at the beginning of starting at production line so that the data detected are sent to described PLC control module by described temperature sensor, humidity sensor and Material Sensor time delay.
Wherein, above-mentioned based in the temperature humidity balance control system of PLC, described control system also includes: control, with described PLC, the prompting module that module electrically connects, during for detecting that at described Material Sensor the material surplus of production line charging aperture is lower than material lower limit, send and remind operator to note the prompting fed in raw material.
Wherein, above-mentioned based in the temperature humidity balance control system of PLC, described control system also includes: control, with described PLC, the timing module that module electrically connects, for the automatic clear when described prompting module sends prompting and start timing, this timing module has timing threshold, when timing time exceedes timing threshold, described PLC controls module and stops the operation of production line.
Wherein, above-mentioned based in the temperature humidity balance control system of PLC, described timing threshold is 10 minutes.
Wherein, above-mentioned based in the temperature humidity balance control system of PLC, described control system also includes: control startup module and the stopping modular that module electrically connects with described PLC, described startup module is used for starting whole production line, and described stopping modular is used for stopping whole production line.
Three, beneficial effects of the present invention
Compared with prior art, the temperature humidity balance control system based on PLC of the present invention, temperature and humidity is adjusted by PID adjustment module in real time that the various physical quantitys on production line are carried out in monitor in real time using PLC by temperature sensor, humidity sensor, to reach the equilibrium of the temperature and humidity in production line, also by Material Sensor, the size of the inlet amount of production line charging aperture is adjusted in real time.
The present invention adopt currently used the most extensively, the best PID regulative mode of stability, the suitability, temperature humidity deviation is carried out from dynamic(al) correction, to reach the production requirement of the best, without regulating school manually, it may be achieved the startup of production line, stopping, warning, the process such as reinforced are automatically controlled.
Accompanying drawing explanation
Fig. 1 is the structural representation of the temperature humidity balance control system based on PLC of one embodiment of the invention；
Fig. 2 is the structural representation of the temperature humidity balance control system based on PLC of another embodiment of the present invention；
In figure: 10 is temperature sensor；20 is humidity sensor；30 is Material Sensor；40 control module for PLC；50 is PID adjustment module；60 is prompting module；70 for starting module；80 is stopping modular；90 is timing module；100 is delay detection module.
Detailed description of the invention
Below in conjunction with drawings and Examples, the specific embodiment of the present invention is described in further detail.Following example are used for illustrating the present invention, but can not be used for limiting the scope of the present invention.
With reference to Fig. 1, the temperature humidity balance control system based on PLC of the present embodiment utilizes steam-heated production line for control, and the structure being somebody's turn to do includes: temperature sensor 10, humidity sensor 20, Material Sensor 30 and PLC control module 40.Temperature sensor 10, humidity sensor 20 and Material Sensor 30 all control module 40 with PLC and electrically connect.Wherein temperature sensor 10 is for detecting the temperature in production line, and is sent by the temperature value of detection to PLC control module 40.Humidity sensor 20 is for detecting the humidity in production line, and is sent by the humidity value of detection to PLC control module 40.Material Sensor 30 is for detecting the material surplus of production line charging aperture, and the material surplus of detection is sent to PLC control module 40.
PLC controls module 40 and for temperature value and the humidity value sent according to temperature sensor 10 and humidity sensor 20, the temperature and humidity in production line is adjusted in real time, according to the material surplus that Material Sensor 30 sends, the size of the inlet amount of production line charging aperture is adjusted in real time.Specifically, the temperature and humidity in production line is adjusted in real time by PLC control module 40 by the PID adjustment module 50 within PLC.Temperature sensor includes many sub-temperature sensors, every corresponding heating coil of sub-temperature sensor and a PID adjustment module 50, when any one sub-temperature sensor detects the temperature value in its detection range higher than preset temperature value, the PID adjustment module 50 corresponding with this sub-temperature sensor controls the heating coil corresponding with this sub-temperature sensor and stops heating, when any one sub-temperature sensor detects the temperature in its detection range lower than preset temperature value, the PID adjustment module 50 corresponding with this sub-temperature sensor controls the heating coil corresponding with this sub-temperature sensor and opens heating；Here, heating coil is for being heated the steam in production line.When humidity sensor 20 detects the humidity value in production line lower than default humidity value, the PID adjustment module 50 corresponding with this sub-temperature sensor controls damping device and production line inside is added wet process, and the PID adjustment module 50 corresponding with this humidity sensor when humidity sensor 20 detects the humidity value in production line higher than default humidity value controls drying device and production line inside is dried process.
Control system in the present embodiment also includes: delay detection module 100, this delay detection module 100 is at the beginning of starting at production line, the data detected are sent to PLC control module 40 by temperature sensor 10, humidity sensor 20 and Material Sensor 30 time delay, such as after production line runs 10 seconds, the data detected just are sent to PLC control module 40 by temperature sensor 10, humidity sensor 20 and Material Sensor 30, to ensure the reliability of temperature sensor 10, humidity sensor 20 and Material Sensor 30 testing result.
Control system in the present embodiment also includes: control, with PLC, the prompting module 60 that module 40 electrically connects, this prompting module 60 is for when Material Sensor detects the material surplus of production line charging aperture lower than material lower limit, sending and remind operator to note the prompting fed in raw material.
Control system in the present embodiment also includes: control startup module 70 and the stopping modular 80 that module 40 electrically connects with PLC, this startup module 70 is used for starting whole production line, and this stopping modular 80 is used for stopping whole production line.
When production line runs, start module 70 and open, first start steam generator, blower fan and conveyer belt, utilize steam generator that production line is preheated.Heating coils heat is restarted by PID adjustment module 50, to prevent heater wire circle from directly production line being heated, it is to avoid empty burning situation occurs when vapor (steam) temperature reaches a timing PLC control module 40.nullWhen any one sub-temperature sensor detects the temperature value in its detection range higher than preset temperature value，The PID adjustment module 50 corresponding with this sub-temperature sensor controls the heating coil corresponding with this sub-temperature sensor and stops heating，When any one sub-temperature sensor detects the temperature in its detection range lower than preset temperature value，The PID adjustment module 50 corresponding with this sub-temperature sensor controls the heating coil corresponding with this sub-temperature sensor and opens heating，When humidity sensor 20 detects the humidity value in production line lower than default humidity value，The PID adjustment module 50 corresponding with this sub-temperature sensor controls damping device and production line inside is added wet process，The PID adjustment module 50 corresponding with this humidity sensor when humidity sensor 20 detects the humidity value in production line higher than default humidity value controls drying device and production line inside is dried process.When working condition meets production requirement, feed system starts, and charging aperture starts charging, and prompting module 60 is when Material Sensor detects the material surplus of production line charging aperture lower than material lower limit, sends and reminds operator to note the prompting fed in raw material.
As mentioned above, the temperature humidity balance control system based on PLC of the embodiment of the present invention, temperature and humidity is adjusted by PID adjustment module in real time that the various physical quantitys on production line are carried out in monitor in real time using PLC by temperature sensor, humidity sensor, to reach the equilibrium of the temperature and humidity in production line, also by Material Sensor, the size of the inlet amount of production line charging aperture is adjusted in real time.
Structural representation with reference to the temperature humidity balance control system based on PLC that Fig. 2, Fig. 2 are another embodiment of the present invention.
As shown in Figure 2, the control system of the present embodiment also includes: control, with PLC, the timing module 90 that module 40 electrically connects, timing module 90 is for the automatic clear when prompting module 60 sends prompting and starts timing, this timing module 90 has timing threshold, when timing time exceedes timing threshold, PLC controls module 40 and stops the operation of production line.The present embodiment, when charging aperture material is lower than lower limit, is reminding operator to note feeding in raw material in time, if timing threshold is unmanned reinforced after such as ten minutes, equipment is automatically stopped operation.
The present invention adopt currently used the most extensively, the best PID regulative mode of stability, the suitability, temperature humidity deviation is carried out from dynamic(al) correction, to reach the production requirement of the best, without regulating school manually, it may be achieved the startup of production line, stopping, warning, the process such as reinforced are automatically controlled.
Below it is only the preferred embodiment of the present invention; it should be pointed out that, for those skilled in the art, under the premise without departing from the technology of the present invention principle; can also making some improvements and modifications, these improvements and modifications also should be regarded as protection scope of the present invention.
Claims (9)
1. based on a temperature humidity balance control system of PLC, utilize steam-heated production line for control, it is characterised in that described control system includes: temperature sensor, humidity sensor, Material Sensor and PLC control module；Described temperature sensor, humidity sensor and Material Sensor all control module with described PLC and electrically connect；Described temperature sensor is for detecting the temperature in production line, and is sent by the temperature value of detection to described PLC control module；Described humidity sensor is for detecting the humidity in production line, and is sent by the humidity value of detection to described PLC control module；Described Material Sensor is for detecting the material surplus of production line charging aperture, and the material surplus of detection is sent to described PLC control module；Described PLC controls module and for temperature value and the humidity value sent according to described temperature sensor and humidity sensor, the temperature and humidity in production line is adjusted in real time, according to the material surplus that described Material Sensor sends, the size of the inlet amount of production line charging aperture is adjusted in real time.
2. the temperature humidity balance control system based on PLC according to claim 1, it is characterised in that described PLC is controlled module and by the PID adjustment module within PLC, the temperature and humidity in production line adjusted in real time.
3. the temperature humidity balance control system based on PLC according to claim 2, it is characterized in that, described temperature sensor includes many sub-temperature sensors, every corresponding heating coil of sub-temperature sensor and a PID adjustment module, when any one sub-temperature sensor detects the temperature value in its detection range higher than preset temperature value, the PID adjustment module corresponding with this sub-temperature sensor controls the heating coil corresponding with this sub-temperature sensor and stops heating, when any one sub-temperature sensor detects the temperature in its detection range lower than preset temperature value, the PID adjustment module corresponding with this sub-temperature sensor controls the heating coil corresponding with this sub-temperature sensor and opens heating；Wherein, heating coil is for being heated the steam in production line.
4. the temperature humidity balance control system based on PLC according to claim 3, it is characterized in that, when described humidity sensor detects the humidity value in production line lower than default humidity value, the PID adjustment module corresponding with this humidity sensor controls damping device and production line inside is added wet process, when described humidity sensor detects that the humidity value in production line is higher than when presetting humidity value, the PID adjustment module corresponding with this humidity sensor controls drying device and production line inside is dried process.
5. the temperature humidity balance control system based on PLC according to claim 4, it is characterized in that, described control system also includes: delay detection module, at the beginning of starting at production line so that the data detected are sent to described PLC control module by described temperature sensor, humidity sensor and Material Sensor time delay.
6. the temperature humidity balance control system based on PLC according to claim 1, it is characterized in that, described control system also includes: control, with described PLC, the prompting module that module electrically connects, during for detecting that at described Material Sensor the material surplus of production line charging aperture is lower than material lower limit, send and remind operator to note the prompting fed in raw material.
7. the temperature humidity balance control system based on PLC according to claim 6, it is characterized in that, described control system also includes: control, with described PLC, the timing module that module electrically connects, for the automatic clear when described prompting module sends prompting and start timing, this timing module has timing threshold, when timing time exceedes timing threshold, described PLC controls module and stops the operation of production line.
8. the temperature humidity balance control system based on PLC according to claim 7, it is characterised in that described timing threshold is 10 minutes.
9. the temperature humidity balance control system based on PLC according to any one of claim 1 to 8, it is characterized in that, described control system also includes: control startup module and the stopping modular that module electrically connects with described PLC, described startup module is used for starting whole production line, and described stopping modular is used for stopping whole production line.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610181924.5A CN105739581A (en) | 2016-03-28 | 2016-03-28 | PLC-based temperature and humidity equalization control system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610181924.5A CN105739581A (en) | 2016-03-28 | 2016-03-28 | PLC-based temperature and humidity equalization control system |
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| CN105739581A true CN105739581A (en) | 2016-07-06 |
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| CN201610181924.5A Pending CN105739581A (en) | 2016-03-28 | 2016-03-28 | PLC-based temperature and humidity equalization control system |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107726838A (en) * | 2017-11-10 | 2018-02-23 | 重庆市贵金象炭黑有限责任公司 | The coordinated control system and its method of a kind of drying system temperature and feeding machine |
| CN108255212A (en) * | 2017-12-29 | 2018-07-06 | 广德大金机械有限公司 | A kind of dermatine drying dehumidification device intelligence control system |
| CN108330698A (en) * | 2017-12-29 | 2018-07-27 | 广德大金机械有限公司 | A kind of comprehensive drying dehumidification method of dermatine |
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| CN105063767A (en) * | 2015-08-18 | 2015-11-18 | 山东天鹅棉业机械股份有限公司 | Seed cotton temperature and humidity control system |
| CN204874859U (en) * | 2015-07-28 | 2015-12-16 | 楼少琼 | Production line that dacron POY is coloured |
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2016
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Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20020152634A1 (en) * | 2001-02-02 | 2002-10-24 | Paul Tedman | Dryer apparatus and dryer control system |
| CN201585978U (en) * | 2009-12-30 | 2010-09-22 | 高亚斌 | Wrist sphygmomanometer with storage function |
| CN104325859A (en) * | 2014-10-14 | 2015-02-04 | 苏州德鲁森自动化***有限公司 | Workshop constant-temperature control system |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107726838A (en) * | 2017-11-10 | 2018-02-23 | 重庆市贵金象炭黑有限责任公司 | The coordinated control system and its method of a kind of drying system temperature and feeding machine |
| CN108255212A (en) * | 2017-12-29 | 2018-07-06 | 广德大金机械有限公司 | A kind of dermatine drying dehumidification device intelligence control system |
| CN108330698A (en) * | 2017-12-29 | 2018-07-27 | 广德大金机械有限公司 | A kind of comprehensive drying dehumidification method of dermatine |
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Application publication date: 20160706 |