CN212032020U - Intelligent pressure difference control device - Google Patents
Intelligent pressure difference control device Download PDFInfo
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- CN212032020U CN212032020U CN202020807979.4U CN202020807979U CN212032020U CN 212032020 U CN212032020 U CN 212032020U CN 202020807979 U CN202020807979 U CN 202020807979U CN 212032020 U CN212032020 U CN 212032020U
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- control device
- differential pressure
- sensor
- intelligent
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Abstract
The utility model discloses an intelligent pressure difference control device, which comprises a control module and is characterized in that the control module is electrically connected with a sensor group module, a communication module, an air inlet module and an air exhaust module; the control module comprises a main chip, a buzzer and a storage unit, wherein the buzzer and the storage unit are electrically connected with the main chip in a bidirectional mode, and the sensor group module comprises a differential pressure sensor, a temperature sensor and a humidity sensor. The utility model discloses be provided with the sensor group module and will detect the parameter and send for control module, control module control air inlet module and the operational aspect of the module of airing exhaust, each air parameter in the adjustment chamber.
Description
Technical Field
The utility model relates to an electronic control field particularly, relates to an intelligent pressure differential control device.
Background
The field of differential pressure control is widely applied to various scenes in life, such as laboratories, hospitals, factories and the like. Chemical laboratories often need to create a negative pressure environment in order to ensure the discharge of toxic gases. Also, for example, operating rooms often require a positive pressure environment for dust free environments. The most important equipment for controlling the pressure difference in a room is a pressure difference controller which is connected with a pressure difference sensor, an air valve actuator and frequency converter equipment. The pressure in the chamber is always kept at a relatively stable value through a PID closed loop regulation technology.
Most of the existing pressure difference controllers on the market are traditional pressure difference controllers, although certain effect can be achieved. But is relatively lagged behind in the aspects of controlling speed, stability and intelligent information transmission.
An effective solution to the problems in the related art has not been proposed yet.
SUMMERY OF THE UTILITY MODEL
To the above-mentioned technical problem among the correlation technique, the utility model provides an intelligent pressure differential control device can solve above-mentioned problem.
In order to achieve the technical purpose, the technical scheme of the utility model is realized as follows:
an intelligent differential pressure control device comprises a control module, and is characterized in that the control module is electrically connected with a sensor group module, a communication module, an air inlet module and an air exhaust module; the control module comprises a main chip, a buzzer and a storage unit, wherein the buzzer and the storage unit are electrically connected with the main chip in a bidirectional mode, and the sensor group module comprises a differential pressure sensor, a temperature sensor and a humidity sensor.
Furthermore, the air inlet module and the air exhaust module are electrically connected with the control module sequentially through the operational amplifier unit and the analog-to-digital conversion unit.
Furthermore, the sensor group module is electrically connected with the control module sequentially through a digital-to-analog conversion unit and an operational amplifier unit.
Further, the communication module comprises an RS485 interface, an Ethernet interface, a TTL serial port and an SWD download port.
Furthermore, an IO input port and an IO output port are arranged on the control module.
Further, the sensor group further comprises an infrared sensor.
Further, the control module is connected with a safety early warning module, and the safety early warning module comprises a toxic gas detection submodule and a product fault detection submodule.
Further, the air inlet module is an air temperature and humidity adjusting fan.
Further, the exhaust module is a suction fan.
Furthermore, the control module is connected with a display and a keyboard.
The utility model has the advantages that:
1. the utility model discloses be provided with the sensor group module and will detect the parameter and send for control module, control module control air inlet module and the operational aspect of the module of airing exhaust, each air parameter in the adjustment chamber.
2. The utility model discloses have multiple interface, realization extension or man-machine interaction that can be convenient.
3. The utility model discloses be provided with safe early warning system, leak or the product trouble when detecting toxic gas, the system can be automatic will be aired exhaust and open the biggest to send the warning to the experimenter and notify backstage managers through webpage end management platform or cell-phone end simultaneously.
4. The device intelligently identifies whether a person is present or not through human body infrared induction, and if the unmanned equipment is not present, the device can automatically switch to an energy-saving working mode so as to achieve the effect of saving electric energy; the optimal total amount of air exhaust or air intake is intelligently calculated through an air quantity sensor in the main pipeline, and a frequency converter is controlled to adjust the rotating speed of the fan so as to achieve the effect of saving electric energy.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
FIG. 1 is a block diagram of an intelligent differential pressure control device.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art all belong to the protection scope of the present invention.
As shown in fig. 1, the intelligent differential pressure control device according to the embodiment of the present invention comprises a control module, wherein the control module is electrically connected to a sensor group module, a communication module, an air intake module and an air exhaust module; the control module comprises a main chip, a buzzer and a storage unit, wherein the buzzer and the storage unit are electrically connected with the main chip in a bidirectional mode, and the sensor group module comprises a differential pressure sensor, a temperature sensor and a humidity sensor.
In a specific embodiment of the present invention, the air intake module and the air exhaust module all loop through the operational amplifier unit, the analog-to-digital conversion unit and the control module electrical connection.
In a specific embodiment of the present invention, the sensor module sequentially passes through the digital-to-analog conversion unit and the operational amplifier unit and is electrically connected to the control module.
In a specific embodiment of the present invention, the communication module includes an RS485 interface, an Ethernet interface, a TTL serial port and a SWD download port.
In a specific embodiment of the present invention, the control module is provided with an IO input port and an IO output port.
In a specific embodiment of the present invention, the sensor group further includes an infrared sensor.
The utility model discloses an in a concrete embodiment, control module is connected with the safety precaution module, the safety precaution module includes toxic gas detection submodule piece and product failure detection submodule piece.
In a specific embodiment of the present invention, the air inlet module is an air humidity control fan.
In a specific embodiment of the present invention, the exhaust module is a suction fan.
In a specific embodiment of the present invention, the control module is connected to a display and a keyboard.
For the convenience of understanding the above technical solutions of the present invention, the above technical solutions of the present invention are explained in detail through specific use modes below.
When specifically using, according to the utility model discloses an intelligent pressure differential control device, control module are as the control core of equipment by STM32F1 system microcontroller, and the extension has eeprom memory, 8025RTC chip, the colored LCD screen of LCD, button, LED, relay output and 3 ADC of group, 2 DAC of group. The system is provided with 1 group of Ethernet communication interfaces and 2 groups of serial port communication interfaces, and all communication control interfaces are provided with isolation protection circuits. The periphery of the device can be matched with a sensor and a controller (a 0-10V voltage signal or a 4-20ma current signal) at will according to the requirements of scenes, and a user can select and switch scenes in an LCD menu bar.
The utility model discloses automatic invariable room pressure differential, humiture, the amount of wind can automize and report to the police and handle incident, have abundant human-computer interaction interface. The device can be applied to any scene needing pressure control, and has strong universality. The device has independent analog output-input interface and independent communication interface. And all communication interfaces support the modbus industrial bus protocol, so that the expansion of other devices and subsequent functions is facilitated.
The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. An intelligent differential pressure control device comprises a control module, and is characterized in that the control module is electrically connected with a sensor group module, a communication module, an air inlet module and an air exhaust module; the control module comprises a main chip, a buzzer and a storage unit, wherein the buzzer and the storage unit are electrically connected with the main chip in a bidirectional mode, and the sensor group module comprises a differential pressure sensor, a temperature sensor and a humidity sensor.
2. The intelligent pressure difference control device according to claim 1, wherein the air intake module and the air exhaust module are electrically connected with the control module sequentially through the operational amplifier unit and the analog-to-digital conversion unit.
3. The intelligent differential pressure control device of claim 1, wherein the sensor group module is electrically connected with the control module sequentially through a digital-to-analog conversion unit and an operational amplifier unit.
4. The intelligent differential pressure control device of claim 1, wherein the communication module comprises an RS485 interface, an Ethernet interface, a TTL serial port and a SWD download port.
5. The intelligent differential pressure control device of claim 1, wherein the control module is provided with an IO input port and an IO output port.
6. The intelligent differential pressure control apparatus of claim 1, wherein the sensor group further comprises an infrared sensor.
7. The intelligent differential pressure control device of claim 1, wherein the control module is connected with a safety pre-warning module, and the safety pre-warning module comprises a toxic gas detection submodule and a product failure detection submodule.
8. The intelligent pressure difference control device according to claim 1, wherein the air intake module is an air temperature and humidity adjusting fan.
9. The intelligent differential pressure control device of claim 1, wherein the exhaust module is a suction fan.
10. The intelligent differential pressure control device of claim 1, wherein a display and a keyboard are connected to the control module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020807979.4U CN212032020U (en) | 2020-05-15 | 2020-05-15 | Intelligent pressure difference control device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020807979.4U CN212032020U (en) | 2020-05-15 | 2020-05-15 | Intelligent pressure difference control device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212032020U true CN212032020U (en) | 2020-11-27 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020807979.4U Expired - Fee Related CN212032020U (en) | 2020-05-15 | 2020-05-15 | Intelligent pressure difference control device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212032020U (en) |
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2020
- 2020-05-15 CN CN202020807979.4U patent/CN212032020U/en not_active Expired - Fee Related
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20201127 Termination date: 20210515 |