CN208077027U - A kind of PLC controls thermostat - Google Patents
A kind of PLC controls thermostat Download PDFInfo
- Publication number
- CN208077027U CN208077027U CN201820443771.1U CN201820443771U CN208077027U CN 208077027 U CN208077027 U CN 208077027U CN 201820443771 U CN201820443771 U CN 201820443771U CN 208077027 U CN208077027 U CN 208077027U
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- CN
- China
- Prior art keywords
- programmable controller
- electrically
- temperature sensor
- thermostat
- signal
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- 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.)
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Abstract
The utility model discloses a kind of PLC in thermostat technology field to control thermostat,It include the temperature sensor in incubation equipment,The temperature sensor electrically exports connection signal isolation processing device,The signal isolation processor electrically exports connection signal amplifier,The signal amplifier electrically exports connection programmable controller,Electrically output connects resistance heater and audible-visual annunciator to the programmable controller respectively,The programmable controller is electrically bi-directionally connected display module,The programmable controller also electrically inputs Connecting quantity input module,The present apparatus uses modularized design,It programs simple,It is easily achieved,It installs and debugs and is convenient and efficient,Temperature value simultaneously inside the hatching apparatus of acquisition is accurate,And acquire the strong antijamming capability of signal,The hatching apparatus constant temperature grading control that can be suitable for large volume uses.
Description
Technical field
The utility model discloses a kind of PLC to control thermostat, specially thermostat technology field.
Background technology
Thermostat is used in the usual means on incubation equipment, it is desirable that its internal temperature can be maintained at during incubation
In the tree value section of one variation range very little, to ensure the temperature substantially constant in hatching process.Traditional thermostat is normal
With a temperature sensor, temperature is detected in real time, and institute's having heaters on thermostat is controlled simultaneously according to the temperature information of detection
Heating stops, and for the larger incubation equipment of a volume, since its inner space is big, the temperature of each position differs
Fixed identical, the temperature value that sensor is detected cannot reflect the true temperature in incubation equipment well, so, it is all
The control mode that heater works at the same time or stops can not ensure ideal constant temperature, be set to also just affect hatching
Standby hatching efficiency.For this purpose, we have proposed a kind of PLC control thermostats to come into operation, to solve the above problems.
Utility model content
The purpose of this utility model is to provide a kind of PLC to control thermostat, mentioned above in the background art to solve
Problem.
To achieve the above object, the utility model provides the following technical solutions：A kind of PLC controls thermostat, including installation
Temperature sensor in incubation equipment, the temperature sensor electrically export connection signal isolation processing device, the signal every
Electrically export connection signal amplifier from processor, the signal amplifier electrically exports connection programmable controller, it is described can
Electrically output connection resistance heater and audible-visual annunciator, the programmable controller are electrically bi-directionally connected programmable controller respectively
Display module, the programmable controller also electrically input Connecting quantity input module.
Preferably, the programmable controller is CPU222 microcontrollers, integrates/6 output of 8 input totally 14 digital quantities
I/O points, and it is independent with 6K byte programs and data space, 4 independent 30kHz high-speed counters and 2 tunnels
20kHz high-speed pulse outputs.
Preferably, the temperature sensor is PT100 platinum sensors, and the resistance change rate of platinum resistance is 0.3582
Ω/DEG C, and encapsulated using stainless steel casing.
Preferably, the signal isolation processor is RZG2100 isolating transmitters, output current 0--20mA.
Compared with prior art, the utility model has the beneficial effects that：The present apparatus uses modularized design, programming letter
It is single, it is easy to accomplish, install and debug convenient and efficient, while the temperature value inside the hatching apparatus acquired is accurate, and acquires letter
Number strong antijamming capability, can be suitable for large volume hatching apparatus constant temperature grading control use.
Description of the drawings
Fig. 1 is Tthe utility model system functional block diagram.
In figure：1 temperature sensor, 2 signal isolation processors, 3 signal amplifiers, 4 programmable controllers, 5 resistance heatings
Device, 6 display modules, 7 parameter input modules, 8 audible-visual annunciators.
Specific implementation mode
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work
The every other embodiment obtained, shall fall within the protection scope of the present invention.
Referring to Fig. 1, the utility model provides a kind of technical solution：A kind of PLC controls thermostat, including it is mounted on hatching
Temperature sensor 1 in equipment, the electrical output connection signal isolation processing device 2 of the temperature sensor 1, at the signal isolation
Manage the electrically output connection signal amplifier 3 of device 2, the electrical output connection programmable controller 4 of the signal amplifier 3, it is described can
Electrically output connection resistance heater 5 and audible-visual annunciator 8, the programmable controller 4 are electrically two-way respectively for programmable controller 4
Display module 6 is connected, the programmable controller 4 also electrically inputs Connecting quantity input module 7.
Wherein, the programmable controller 4 is CPU222 microcontrollers, integrates/6 output of 8 input totally 14 digital quantities
I/O points, and it is independent with 6K byte programs and data space, 4 independent 30kHz high-speed counters and 2 tunnels
20kHz high-speed pulse outputs, the temperature sensor 1 are PT100 platinum sensors, and the resistance change rate of platinum resistance is
0.3582 Ω/DEG C, and encapsulated using stainless steel casing, the signal isolation processor 2 is RZG2100 isolating transmitters, defeated
It is 0--20mA to go out electric current.
Operation principle：By the temperature signal in temperature sensor 1 in real time acquisition incubation equipment, pass through signal isolation processor
2 are converted into the input signal of direct current the standard procedure signal of isolation, and are put the temperature signal of acquisition by signal amplifier 3
Be uploaded in programmable controller 4 after big processing, by parameter input module 7 input at the temperature in Regulation of Constant Temperature limit with
And upper limit value, after programmable controller 4 carries out analyzing processing to the temperature signal of upload, when the hatching that temperature sensor 1 acquires
When actual temperature is less than the lower limiting value set inside device, resistance heater 5 is driven to heat by programmable controller 4；Work as acquisition
Temperature be higher than preset upper limit value when, by programmable controller 5 control resistance heater 5 it is out of service, ensure hatching
The operating condition of constant temperature inside equipment, for temperature value when less than lower limiting value or higher than upper limit value, audible-visual annunciator 8 sends out alarm,
Display module 6 be used for real-time display opertions engineering in temperature parameter, present apparatus reasonable design, using modular design, easily
It in installation and uses, programming process is simple and reliable.
While there has been shown and described that the embodiments of the present invention, for the ordinary skill in the art,
It is appreciated that can these embodiments be carried out with a variety of variations in the case where not departing from the principles of the present invention and spirit, repaiied
Change, replace and modification, the scope of the utility model are defined by the appended claims and the equivalents thereof.
Claims (4)
- Include the temperature sensor (1) in incubation equipment 1. a kind of PLC controls thermostat, it is characterised in that：The temperature Sensor (1) electrically output connection signal isolation processing device (2) is spent, the signal isolation processor (2) electrically exports connection letter Number amplifier (3), the electrical output connection programmable controller (4) of the signal amplifier (3), the programmable controller (4) Electrically output connection resistance heater (5) and audible-visual annunciator (8), the programmable controller (4) are electrically bi-directionally connected respectively Display module (6), the programmable controller (4) also electrically input Connecting quantity input module (7).
- 2. a kind of PLC according to claim 1 controls thermostat, it is characterised in that：The programmable controller (4) is CPU222 microcontrollers integrate/6 output of 8 input totally 14 digital quantity I/O points, and are stored with 6K byte programs and data Space, the independent 20kHz high-speed pulse outputs of 4 independent 30kHz high-speed counters and 2 tunnels.
- 3. a kind of PLC according to claim 1 controls thermostat, it is characterised in that：The temperature sensor (1) is PT100 platinum sensors, the resistance change rate of platinum resistance be 0.3582 Ω/DEG C, and encapsulated using stainless steel casing.
- 4. a kind of PLC according to claim 1 controls thermostat, it is characterised in that：The signal isolation processor (2) is RZG2100 isolating transmitters, output current 0--20mA.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820443771.1U CN208077027U (en) | 2018-03-30 | 2018-03-30 | A kind of PLC controls thermostat |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820443771.1U CN208077027U (en) | 2018-03-30 | 2018-03-30 | A kind of PLC controls thermostat |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208077027U true CN208077027U (en) | 2018-11-09 |
Family
ID=64042522
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820443771.1U Expired - Fee Related CN208077027U (en) | 2018-03-30 | 2018-03-30 | A kind of PLC controls thermostat |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208077027U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116735903A (en) * | 2023-08-15 | 2023-09-12 | 牡丹江国际旅行卫生保健中心(牡丹江海关口岸门诊部) | Constant-temperature full-automatic blood detection and analysis system |
-
2018
- 2018-03-30 CN CN201820443771.1U patent/CN208077027U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116735903A (en) * | 2023-08-15 | 2023-09-12 | 牡丹江国际旅行卫生保健中心(牡丹江海关口岸门诊部) | Constant-temperature full-automatic blood detection and analysis system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20181109 Termination date: 20200330 |
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| CF01 | Termination of patent right due to non-payment of annual fee |