CN211316430U - High-precision temperature and humidity control device - Google Patents
High-precision temperature and humidity control device Download PDFInfo
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- CN211316430U CN211316430U CN201922285386.6U CN201922285386U CN211316430U CN 211316430 U CN211316430 U CN 211316430U CN 201922285386 U CN201922285386 U CN 201922285386U CN 211316430 U CN211316430 U CN 211316430U
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Abstract
The utility model provides a high accuracy temperature and humidity control device, including air handling module, cold source module, ventilation module and automatic control module, the cold source module includes the evaporimeter, automatic control module includes temperature sensor, humidity transducer and PID control module, the output of evaporimeter is connected with air handling module's input, air handling module's output is connected with ventilation module's input, temperature sensor, humidity transducer locate ventilation module's output, PID control module and air handling module, cold source module, temperature sensor, humidity transducer are connected. The utility model discloses utilize temperature sensor, humidity transducer to gather temperature, the humidity information of air outlet department, carry out automatic feedback control to air treatment module and cold source module through PID control module again, can realize accurate control, possess automatic monitoring function.
Description
Technical Field
The utility model relates to an environment atmospheric control technical field especially relates to a high accuracy temperature and humidity control device.
Background
The control requirements of places such as semiconductors, liquid crystals, pharmaceutical factories and the like on the environmental temperature and humidity are high, constant-temperature and constant-humidity control is required, the temperature precision is generally required to be within +/-0.5 ℃, the humidity precision is required to be within +/-3% HR, and the current domestic temperature and humidity control equipment cannot meet the precision requirements and mainly depends on imported equipment; with the requirement of rapid development of electronic industries such as semiconductors, liquid crystals and the like in China, the demand of high-precision temperature and humidity control equipment is continuously increased.
SUMMERY OF THE UTILITY MODEL
The utility model aims at solving the shortcoming that exists among the prior art, and the high accuracy temperature and humidity control device that provides, the automatic tracking environment temperature and humidity change improves control accuracy, makes temperature and humidity control reach the optimum.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
the utility model provides a high accuracy temperature and humidity control device, includes air handling module, cold source module, ventilation module and automatic control module, the cold source module includes the evaporimeter, automatic control module includes temperature sensor, humidity transducer and PID control module, the output of evaporimeter with air handling module's input is connected, air handling module's output with ventilation module's input is connected, temperature sensor humidity transducer locates ventilation module's output, PID control module with air handling module the cold source module temperature sensor humidity transducer electric connection.
Preferably, the air treatment module comprises a heater and a humidifier, wherein the heater is arranged between the evaporator and the humidifier, or the humidifier is arranged between the evaporator and the heater.
Preferably, the ventilation module comprises a ventilator and an air outlet, the ventilator is arranged at the output end of the air treatment module, and the air outlet is connected with the ventilator; the temperature sensor and the humidity sensor are arranged at the air outlet.
Preferably, the high-precision temperature and humidity control device comprises a box body and a door plate, the air treatment module, the cold source module, the ventilation module and the PID control module are arranged inside the box body, and the air outlet extends out of the box body.
Preferably, the automatic control module comprises an operation screen, the operation screen is arranged on the door panel, and the operation screen is connected with the PID control module.
Preferably, the door panel is provided with an indicator light and an intermittent flashing buzzer, the indicator light and the intermittent flashing buzzer are connected with the PID control module, the indicator light is used for displaying the working state of the high-precision temperature and humidity control device, and the intermittent flashing buzzer is used for giving out light and sound alarm prompts when the high-precision temperature and humidity control device works abnormally.
Preferably, the bottom of the box body is provided with universal fixed casters.
Compared with the prior art, the beneficial effects of the utility model are that:
(1) the temperature sensor and the humidity sensor at the air outlet are used for collecting an actual temperature value and an actual humidity value, the PID control module compares the actual temperature value with a set temperature value and compares the actual humidity value with a set humidity value, the air processing module and the cold source module are controlled by adopting a PID control principle according to the calculation result, the temperature and humidity change is automatically tracked, the temperature and humidity control meets the set requirement, and the purpose of high-precision temperature and humidity control is achieved;
(2) the temperature and humidity are intelligently regulated by adopting a PID feedback control mode, so that the control precision is high, the advantages of high regulation speed and automatic control are achieved, and energy can be better saved;
(3) can set for and show on the operation screen and set for the temperature value, set for the humidity value, can show real-time temperature value, real-time humidity value, the pilot lamp can display equipment's operating condition, intermittent flash of light bee calling organ can send light and audible alarm suggestion when equipment work is unusual, makes things convenient for personnel to carry out real time monitoring to environment humiture.
Drawings
Fig. 1 is a side view of a high-precision temperature and humidity control device according to embodiment 1 of the present invention;
fig. 2 is a side view of a high-precision temperature and humidity control device according to embodiment 2 of the present invention;
fig. 3 is a front view of a high-precision temperature and humidity control device according to embodiment 1 of the present invention;
fig. 4 is an application system diagram of the high-precision temperature and humidity control device according to embodiment 1 of the present invention.
The device comprises an air treatment module, an air heater, a humidifier 12, a cold source module 20, an evaporator 21, a ventilation module 30, a ventilation fan 31, an air outlet 32, an automatic control module 40, a temperature sensor 41, a humidity sensor 42, a PID control module 43, an operation screen 44, an indicator lamp 45, an intermittent flashing buzzer 46, a box body 50, a universal fixed caster 52 and a door panel 60.
Detailed Description
In order to further understand the objects, structures, features and functions of the present invention, the following embodiments are described in detail.
Referring to fig. 1 to 4, fig. 1 is a side view of a high-precision temperature and humidity control device according to embodiment 1 of the present invention; fig. 2 is a side view of a high-precision temperature and humidity control device according to embodiment 2 of the present invention; fig. 3 is a front view of a high-precision temperature and humidity control device according to embodiment 1 of the present invention; fig. 4 is an application system diagram of the high-precision temperature and humidity control device according to embodiment 1 of the present invention.
Please refer to fig. 1, the embodiment 1 of the present invention provides a high-precision temperature and humidity control device, including air processing module 10, cold source module 20, ventilation module 30 and automatic control module 40, cold source module 20 includes evaporator 21, automatic control module 40 includes temperature sensor 41, humidity sensor 42 and PID control module 43, the output of evaporator 21 is connected with the input of air processing module 10, the output of air processing module 10 is connected with the input of ventilation module 30, temperature sensor 41, the output of ventilation module 30 is located to humidity sensor 42, PID control module 43 and air processing module 10, cold source module 20, temperature sensor 41, humidity sensor 42 electric connection. The temperature sensor 41 is used for acquiring the real-time temperature at the output end of the ventilation module 30 and feeding the real-time temperature back to the PID control module 43, the humidity sensor 42 is used for acquiring the real-time humidity at the output end of the ventilation module 30 and feeding the real-time humidity back to the PID control module 43, the PID control module 43 is used for comparing and calculating the real-time temperature and the set temperature and comparing and calculating the real-time humidity and the set humidity, and the working states of the air processing module 10, the cold source module 20 and the ventilation module 30 are adjusted according to the PID automatic control principle, so that the environment temperature and humidity reach the control requirement.
Preferably, the air treatment module 10 includes a heater 11 and a humidifier 12, the heater 11 is disposed between the evaporator 21 and the humidifier 12, or the humidifier 12 is disposed between the evaporator 21 and the heater 11; referring to fig. 1, in embodiment 1 of the present invention, the heater 11 is disposed between the evaporator 21 and the humidifier 12, and the output end of the humidifier 12 is connected to the input end of the ventilation module 30; referring to fig. 2, in embodiment 2 of the present invention, the humidifier 12 is disposed between the evaporator 21 and the heater 11, and the output end of the heater 11 is connected to the input end of the ventilation module 30. The utility model discloses an in the high accuracy temperature and humidity control device working process, cold source module 20, air treatment module 10 and ventilation module 30 form an effectual gas flow channel, the air gets into from evaporimeter 21, evaporimeter 21 has also reduced the moisture in the air when reducing the air temperature, the humidity of air has been reduced promptly, the air that comes out from evaporimeter 21 heats to setting for the temperature value through heater 11, through humidifier 12 humidification to setting for the humidity value again (or the air that comes out from evaporimeter 21 heats to setting for the humidity value through humidifier 12, through heater 11 again and heat to setting for the temperature value), later blow to the environment through ventilation module 30, satisfy the requirement of environment temperature and humidity control.
Preferably, the ventilation module 30 includes a ventilator 31 and an air outlet 32, the ventilator 31 is disposed at the output end of the air treatment module 10, and the air outlet 32 is connected to the ventilator 31; the temperature sensor 41 and the humidity sensor 42 are disposed at the air outlet 32. Air meeting the temperature and humidity control requirements is blown into the environment by the ventilator 31.
Preferably, the high-precision temperature and humidity control device comprises a box 50 and a door 60, the air treatment module 10, the cold source module 20, the ventilation module 30 and the PID control module 43 are arranged inside the box 50, and the air outlet 32 extends out of the box 50. The box body 50 and the door plate 60 of the high-precision temperature and humidity control device are made of wiredrawing stainless steel, so that the whole strength is firm and reliable, and the appearance is attractive; all electrical components are arranged on the insulating bakelite in the box body 50, so that insulation and reliability are guaranteed; the circuit parts are grounded, leakage protection is considered, and the use safety is guaranteed; the cold source module 20 is insulated to ensure the isolation of the cold source module 20 from the outside, thereby ensuring the working efficiency of the equipment and reducing the loss.
Preferably, referring to fig. 3, the automatic control module 40 includes an operation panel 44, the operation panel 44 is disposed on the door panel 60, and the operation panel 44 is connected to the PID control module 43. The user can set temperature and humidity parameters and control the starting or stopping of the equipment on the operation screen 44, the user can operate the equipment through simple training, and the operation interface is simple and visual; the PID control module 43 receives the data of the temperature sensor 41 and the humidity sensor 42, and can also display the real-time temperature and the real-time humidity on the operation screen 44, so that the user can conveniently monitor the temperature and the humidity of the environment in real time.
Preferably, the door panel 60 is provided with an indicator lamp 45 and an intermittent flashing buzzer 46, the indicator lamp 45 and the intermittent flashing buzzer 46 are connected with the PID control module 43, the indicator lamp 45 is used for displaying the working state of the high-precision temperature and humidity control device, and the intermittent flashing buzzer 46 is used for giving out light and sound alarm prompts when the high-precision temperature and humidity control device works abnormally, so that the use safety is guaranteed.
Preferably, please refer to fig. 1, fig. 2 or fig. 3, a universal caster 51 is disposed at the bottom of the box 50, which is convenient for the user to move the high-precision temperature and humidity control device of the present invention.
The utility model discloses a high accuracy temperature and humidity control device's work flow as follows: outdoor air enters the evaporator 21 through the coarse filter, the moisture in the air is reduced while the air temperature is reduced, that is, the humidity of the air is reduced, the outdoor air comes out of the evaporator 21 and becomes low Dew point air (Dew point), also called Dew point temperature (Dew point temperature), in meteorology, the temperature when the air is cooled to saturation is called the Dew point temperature under the condition of keeping the air pressure constant, the Dew point is called the Dew point temperature for short, the unit is expressed by DEG C or DEG F, actually the temperature when the water vapor and the water reach the equilibrium state, the difference between the actual temperature (t) and the Dew point temperature (Td) expresses the saturation degree of the air distance, when t > Td, the air is not saturated, when t is Td, the air is saturated, when t < Td, the air is supersaturated, the low air passes through the heater 11 and is heated to the set temperature value, and the humidifier 12 is humidified to the set humidity value (or the low air passes through the humidifier 12 to the set humidity) and is humidified by the humidifier Value, through heater 11 heating to the set temperature value), later blow to the environment through ventilation blower 31 and air outlet 32, satisfy the environmental temperature and humidity control requirement.
The utility model discloses an among the high accuracy temperature and humidity control device, PID control module 43 adopts PID feedback control mode, comprises feedback control loop by proportional control unit, integral unit and differential unit, and the control principle formula is as follows:
wherein, KpIs a proportionality coefficient, TiTo integrate the time constant, TdIs a differential time constant, etAs a temperature deviation or humidity deviation utIs a control quantity.
When the temperature is a controlled quantity, etThe difference value between the real-time temperature and the set temperature is obtained by only reasonably designing Kp、Ti、TdThe temperature control value can be calculated, and then the heating efficiency of the heater is adjusted according to the temperature control value, so that the aim of high-precision temperature control is fulfilled; when the humidity is a controlled quantity, etThe difference value between the real-time humidity and the set humidity is obtained by only reasonably designing Kp、Ti、TdThe humidity control value can be calculated, and then the humidifying efficiency of the humidifier is adjusted according to the humidity control value, so that the purpose of high-precision humidity control is achieved.
The utility model discloses well automatic control module adopts PID feedback control mode, and control accuracy is high, control speed is fast, makes the utility model discloses a high accuracy temperature and humidity control device's temperature control precision is within 0.1 ℃, and higher can reach within 0.005 ℃, and humidity control precision is within 0.3% HR, compares current temperature humidity control product on the market, the utility model discloses a control accuracy is higher, and the performance is more excellent.
The high-precision temperature and humidity control device of the utility model is divided into a manual control mode and an automatic control mode, the manual control mode can control each module independently, and the device is suitable for being used by professionals under modulation states and special conditions; in the automatic mode, the user performs an operation using the operation screen 44; an operation 44 is performed to set temperature and humidity parameters and control the high-precision temperature and humidity control device to start or stop; after the operation panel 44 is clicked and started, the high-precision temperature and humidity control device sequentially starts the ventilator 31, the cold source module 20, the heater 11 and the humidifier 12 according to a set program, after the ventilator 31 is started, in order to protect other equipment, the cold source module 20, the heater 11 and the humidifier 12 need to be started after a certain time delay, and the delay time can be automatically set in the operation panel 44; after the click stop on the operation panel 44, the high-precision temperature/humidity control apparatus stops the cold source module 20, the humidifier 12, the heater 11, and the ventilator 31 in sequence according to a set program in order to prevent the operation of the humidifier 12, the heater 11, and the cold source module 20 from being stopped without dissipating energy generated by the ventilator 31, thereby causing damage to other components.
Further, the utility model discloses an among the high accuracy temperature and humidity control device, operation screen 44 combines thing networking (IOT) technique and Artificial Intelligence (AI) technique, and the operation is more simple and convenient, uses the flexibility stronger.
Please refer to fig. 4, fig. 4 is an application system diagram of a high-precision temperature and humidity control device according to embodiment 1 of the present invention. The utility model discloses in, constant temperature and humidity unit is constituteed to air treatment module 10 (heater 11 and humidifier 12), cold source module 20 (evaporimeter 21), utilizes temperature sensor 41 to gather real-time temperature, humidity transducer 42 and gathers real-time humidity, utilizes automatic control module 40 to carry out automatic PID feedback control, the utility model discloses combine high efficiency filter and IOT, AI technique, can constitute temperature and humidity control system, be applied to in the higher place of requirement to environment humiture, control accuracy is high, control automation can satisfy the high accuracy temperature and humidity control requirement.
To sum up, the utility model provides a high accuracy temperature and humidity control device, utilize temperature sensor 41, humidity transducer 42 collection actual temperature value and actual humidity value of air outlet 32 department, PID control module 43 carries out the comparison with actual temperature value and settlement temperature value and calculates, carries out the comparison with actual humidity value and settlement humidity value, adopt PID control principle to control air treatment module 10 and cold source module 20 according to the calculated result, the automatic tracking temperature and humidity change, make temperature and humidity control reach and satisfy the settlement requirement, thereby reach the purpose of high accuracy temperature and humidity control; the temperature and humidity are intelligently regulated by adopting a PID feedback control mode, so that the control precision is high, the advantages of high regulation speed and automatic control are achieved, and energy can be better saved; the operation screen 44 can be used for setting and displaying a set temperature value and a set humidity value, displaying a real-time temperature value and a real-time humidity value, the indicator lamp 45 can display the working state of the equipment, and the intermittent flashing buzzer 46 can give out light and sound alarm prompts when the equipment works abnormally, so that the personnel can conveniently monitor the environment temperature and humidity in real time.
The present invention has been described in relation to the above embodiments, which are only examples for implementing the present invention. It should be noted that the disclosed embodiments do not limit the scope of the invention. On the contrary, all changes and modifications which do not depart from the spirit and scope of the present invention are deemed to fall within the scope of the present invention.
Claims (7)
1. The utility model provides a high accuracy temperature and humidity control device which characterized in that: including air treatment module, cold source module, ventilation module and automatic control module, the cold source module includes the evaporimeter, automatic control module includes temperature sensor, humidity transducer and PID control module, the output of evaporimeter with air treatment module's input is connected, air treatment module's output with ventilation module's input is connected, temperature sensor humidity transducer locates ventilation module's output, PID control module with air treatment module the cold source module temperature sensor humidity transducer electric connection.
2. The high-precision temperature and humidity control device according to claim 1, wherein: the air treatment module comprises a heater and a humidifier, wherein the heater is arranged between the evaporator and the humidifier, or the humidifier is arranged between the evaporator and the heater.
3. The high-precision temperature and humidity control device according to claim 1, wherein: the ventilation module comprises a ventilator and an air outlet, the ventilator is arranged at the output end of the air treatment module, and the air outlet is connected with the ventilator; the temperature sensor and the humidity sensor are arranged at the air outlet.
4. The high-precision temperature and humidity control device according to claim 3, wherein: the high-precision temperature and humidity control device comprises a box body and a door plate, the air treatment module, the cold source module, the ventilation module and the PID control module are arranged inside the box body, and the air outlet extends out of the box body.
5. The high-precision temperature and humidity control device according to claim 4, wherein: the automatic control module comprises an operation screen, the operation screen is arranged on the door plate, and the operation screen is connected with the PID control module.
6. The high-precision temperature and humidity control device according to claim 4, wherein: the door plate is provided with an indicator light and an intermittent flashing buzzer, the indicator light and the intermittent flashing buzzer are connected with the PID control module, the indicator light is used for displaying the working state of the high-precision temperature and humidity control device, and the intermittent flashing buzzer is used for giving out light and sound alarm prompts when the high-precision temperature and humidity control device works abnormally.
7. The high-precision temperature and humidity control device according to any one of claims 4 to 6, wherein: the bottom of the box body is provided with a universal fixed caster.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201922285386.6U CN211316430U (en) | 2019-12-18 | 2019-12-18 | High-precision temperature and humidity control device |
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| CN201922285386.6U CN211316430U (en) | 2019-12-18 | 2019-12-18 | High-precision temperature and humidity control device |
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| CN211316430U true CN211316430U (en) | 2020-08-21 |
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| CN201922285386.6U Active CN211316430U (en) | 2019-12-18 | 2019-12-18 | High-precision temperature and humidity control device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112944634A (en) * | 2021-03-25 | 2021-06-11 | 北京小米移动软件有限公司 | Air conditioner control method and device and air conditioner |
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- 2019-12-18 CN CN201922285386.6U patent/CN211316430U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112944634A (en) * | 2021-03-25 | 2021-06-11 | 北京小米移动软件有限公司 | Air conditioner control method and device and air conditioner |
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| CB03 | Change of inventor or designer information |
Inventor after: Zhang Yan Inventor after: Li Zongze Inventor after: Chen Ling Inventor after: Ye Weiqiang Inventor before: Zhang Yan Inventor before: Zhou Le Inventor before: Li Zongze Inventor before: Chen Ling Inventor before: Ye Weiqiang |