CN204902347U - Two PID regulation and controlling system - Google Patents
Two PID regulation and controlling system Download PDFInfo
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- CN204902347U CN204902347U CN201520490981.2U CN201520490981U CN204902347U CN 204902347 U CN204902347 U CN 204902347U CN 201520490981 U CN201520490981 U CN 201520490981U CN 204902347 U CN204902347 U CN 204902347U
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Abstract
The utility model discloses a two PID regulation and controlling system, including PID controller, compressor, electric heater, voltage regulator, relay, temperature sensor with locate the exhaust temperature sensor of unit gas vent, the first output of PID controller passes through the relay and then is connected with the compressor, the second output of PID controller is connected through the voltage regulator and then with electric heater's input. The utility model discloses a voltage regulator output connection electric heater to can control electric heater's output, effectively avoid the too big too high problem of consumption that causes of electric heater output, reduce system energy consumption greatly. And not only guaranteed heat pump system's safe operation, guaranteed the stability of air supply temperature in addition, great promotion the production efficiency in stoving workshop. The utility model discloses but the wide application is in heat pump system.
Description
Technical field
The utility model relates to heat pump control technology field, particularly relates to a kind of double PID adjustment control system.
Background technology
Air-source was dried heat pump to be vented too high processing method as follows realizing preset target temperature and solve heat pump in the past:
1., by carrying out PID adjustment to compressor, what make unit energy fast energy-saving reaches target temperature; But often because bake out temperature requires high, when heat pump compressor fan-out capability cannot realize target temperature time, just need to open electrical heating as auxiliary, but electrical heating in the past simply can only open and close control, be easy to like this cause electrical heating fan-out capability excessive, energy consumption is high.
2., when heat pump is vented too high time, heat pump meeting stoppage protection, wind pushing temperature will reduce fast, and wind pushing temperature reduces to be needed between the drying vehicle of stable hot blast for the moment, and impact is very large, has had a strong impact on production efficiency.
Utility model content
In order to solve the problems of the technologies described above, the purpose of this utility model is to provide one can reduce energy consumption, and improves a kind of double PID adjustment control system of stability.
The technical scheme that the utility model adopts is:
A kind of double PID adjustment control system, comprise PID controller, compressor, electric heater, pressure regulator, relay, temperature sensor and be located at the exhaust gas temperature sensor of unit exhaust outlet, the output of described temperature sensor is connected with the first input end of PID controller, the output of described exhaust gas temperature sensor is connected with the second input of PID controller, first output of described PID controller is by relay and then be connected with compressor, and the second output of described PID controller is connected by pressure regulator and then with the input of electric heater.
As further improvement of the utility model, described PID controller is also connected with magnetic valve.
As further improvement of the utility model, described PID controller is also connected with Surge Protector.
The beneficial effects of the utility model are:
A kind of double PID adjustment control system of the utility model is exported by pressure regulator and connects electric heater, thus can control the power output of electric heater, effectively avoids the excessive problem causing power consumption too high of electric heater power output, greatly lowers system energy consumption.And when heat pump stoppage protection by regulating the cooperation of compressor and electric heater, not only can also ensure that the safe operation of heat pump, and also ensure that the stable of wind pushing temperature, improving the production efficiency between drying vehicle greatly.
Accompanying drawing explanation
Below in conjunction with accompanying drawing, detailed description of the invention of the present utility model is described further:
Fig. 1 is the functional-block diagram of a kind of double PID adjustment control system of the utility model.
Detailed description of the invention
With reference to figure 1, a kind of double PID adjustment control system of the utility model, comprise PID controller, compressor, electric heater, pressure regulator, relay, temperature sensor and the exhaust gas temperature sensor being located at unit exhaust outlet, the output of described temperature sensor is connected with the first input end of PID controller, the output of described exhaust gas temperature sensor is connected with the second input of PID controller, first output of described PID controller is by relay and then be connected with compressor, second output of described PID controller is connected by pressure regulator and then with the input of electric heater.
Be further used as preferred embodiment, described PID controller is also connected with magnetic valve.
Be further used as preferred embodiment, described PID controller is also connected with Surge Protector.When producing suddenly peak current or voltage because of extraneous interference in electric loop or communication line, described Surge Protector can be shunted within the extremely short time in conducting, thus avoids surge to the infringement of other equipment in loop.
In the utility model specific embodiment, access 380V supply voltage, after source pump start, the actual temperature that described PID controller records according to temperature sensor carries out PID adjustment with the target temperature difference preset, after target temperature reaches, continue to carry out PID adjustment to compressor, to ensure stable wind pushing temperature; When having reached maximum fan-out capability to compressor adjustment and still cannot having reached target temperature, then also PID adjustment is carried out to electric heater by pressure regulator opening electric heater simultaneously, until compressor and electric heater realize the target temperature of baking needed, ensure that compressor and electric heater export the ability of being applicable to while realizing preset target temperature, reduce the energy consumption of complete machine.
When in source pump running, described exhaust gas temperature sensor detects the delivery temperature of unit in real time, and when heat pump excessive discharge temperature being detected, compressor fan-out capability is turned down by PID by described PID controller; Electric heater fan-out capability is heightened by pressure regulator by described PID controller, thus ensure that the stable of wind pushing temperature, improves the production efficiency between drying vehicle greatly.
Wherein, how to judge whether actual temperature reaches target temperature and whether too high this technological means of actual exhaust air temperature, and it can adopt self function of PID controller in prior art to realize, because not elaborating herein.
More than that better enforcement of the present utility model is illustrated, but the utility model is created and is not limited to described embodiment, those of ordinary skill in the art also can make all equivalent variations or replacement under the prerequisite without prejudice to the utility model spirit, and these equivalent distortion or replacement are all included in the application's claim limited range.
Claims (3)
1. a double PID adjustment control system, it is characterized in that: comprise PID controller, compressor, electric heater, pressure regulator, relay, temperature sensor and the exhaust gas temperature sensor being located at unit exhaust outlet, the output of described temperature sensor is connected with the first input end of PID controller, the output of described exhaust gas temperature sensor is connected with the second input of PID controller, first output of described PID controller is by relay and then be connected with compressor, second output of described PID controller is connected by pressure regulator and then with the input of electric heater.
2. a kind of double PID adjustment control system according to claim 1, is characterized in that: described PID controller is also connected with magnetic valve.
3. a kind of double PID adjustment control system according to claim 1, is characterized in that: described PID controller is also connected with Surge Protector.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520490981.2U CN204902347U (en) | 2015-07-08 | 2015-07-08 | Two PID regulation and controlling system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520490981.2U CN204902347U (en) | 2015-07-08 | 2015-07-08 | Two PID regulation and controlling system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204902347U true CN204902347U (en) | 2015-12-23 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520490981.2U Active CN204902347U (en) | 2015-07-08 | 2015-07-08 | Two PID regulation and controlling system |
Country Status (1)
| Country | Link |
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| CN (1) | CN204902347U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112413953A (en) * | 2020-11-17 | 2021-02-26 | 广东芬尼克兹节能设备有限公司 | Electronic expansion valve control method and device of carbon dioxide heat pump |
-
2015
- 2015-07-08 CN CN201520490981.2U patent/CN204902347U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112413953A (en) * | 2020-11-17 | 2021-02-26 | 广东芬尼克兹节能设备有限公司 | Electronic expansion valve control method and device of carbon dioxide heat pump |
| CN112413953B (en) * | 2020-11-17 | 2022-05-27 | 广东芬尼克兹节能设备有限公司 | Electronic expansion valve control method and device of carbon dioxide heat pump |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |