CN215248138U - Variable-frequency fan control mechanism for pneumatic garbage conveying system - Google Patents
Variable-frequency fan control mechanism for pneumatic garbage conveying system Download PDFInfo
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- CN215248138U CN215248138U CN202121146882.4U CN202121146882U CN215248138U CN 215248138 U CN215248138 U CN 215248138U CN 202121146882 U CN202121146882 U CN 202121146882U CN 215248138 U CN215248138 U CN 215248138U
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Abstract
The utility model aims at providing a frequency conversion fan control mechanism for rubbish air conveying system, its characterized in that: including putting in mouthful control box, the pipeline, pressure sensor, well accuse cabinet, the host computer, converter and fan, well accuse cabinet is equipped with the ECC control screen, whole mechanism is used for rubbish pneumatic conveyor system, adopt manual control and according to preset time periodicity automatic control, pressure sensor changes gravity signal into analog signal of telecommunication and gives the PLC controller, the PLC controller contrasts current pressure value and the pressure value that sets up in advance, thereby be used for the rubbish transportation through converter control fan wind-force, can realize the variable frequency control to the fan according to the weight size of putting in rubbish, thereby practice thrift the cost, reach energy saving and emission reduction's effect, and then liberate operating personnel, let operating personnel can be more timely to the understanding of system operation situation, it is more convenient, whole operation fault-tolerant rate has been improved.
Description
Technical Field
The utility model relates to an automatic change the refuse treatment field, especially relate to a frequency conversion fan control mechanism for rubbish pneumatic conveyor system.
Background
The pneumatic garbage conveying system is a brand-new garbage dredging and conveying system and is firstly put into a hospital for use, when a sensor above a garbage storage section senses that garbage is full, a central system of the system sends an instruction to start an exhaust fan in a collecting station to generate negative pressure, and the garbage is conveyed to the central collecting station at the speed of 18-24 meters per second; however, in the operation process of the system, no matter the weight of the garbage in the pipeline below the storage node is large or small, the fan always runs at the same rotating speed under the condition of not participating in manual frequency modulation, so that the condition of small garbage high-power extraction can occur, a large amount of electric energy is wasted, the operation cost of equipment is greatly improved, and the service life of the fan is reduced. Therefore, from the actual use condition of the equipment, a control system for automatically controlling the rotating speed of the fan through a PLC is required to be designed, the localization process of the automatic pneumatic garbage conveying system is powerfully promoted, the project cost is reduced, and the garbage conveying mechanism with higher economic benefit, energy-saving and environmental-friendly benefit and social benefit is required to be designed to solve the defects and problems in the actual use.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing an adopt manual control and according to the periodic automatic control of preset time, pressure sensor changes gravity signal into analog signal of telecommunication and gives the PLC controller, the PLC controller contrasts current pressure value and the pressure value that sets up in advance, thereby be used for the rubbish transportation through converter control fan wind-force, can realize the frequency conversion control to the fan according to the weight size of putting in rubbish, thereby practice thrift the cost, reach energy saving and emission reduction's effect, and then liberation operating personnel, let operating personnel can be more timely to the understanding of system operation situation, it is more convenient, the frequency conversion fan control mechanism who is used for rubbish pneumatic conveyor system that has improved whole operation fault-tolerant rate.
The technical scheme of the utility model is that: the utility model provides a frequency conversion fan control mechanism for rubbish pneumatic conveying system which characterized in that: the system comprises a throwing port control box, a pipeline, a pressure sensor, a central control cabinet, an upper computer, a frequency converter and a fan, wherein the throwing port control box is positioned outdoors, the throwing port control box is fixedly connected with outdoor facilities, the pipeline is positioned at the lower part of the throwing port control box, one end of the pipeline is fixedly connected with the bottom of the throwing port control box, the other end of the pipeline is fixedly connected with the fan, the pressure sensor is positioned at the bottom position of the pipeline close to the throwing port control box, the pressure sensor is fixedly connected with the pipeline, the central control cabinet is positioned at the next stage of the pressure sensor, the central control cabinet is connected with the pressure sensor by a circuit, the upper computer is positioned at the upper stage of the central control cabinet, the upper computer is connected with the central control cabinet by a circuit, the frequency converter is positioned at the next stage of the central control cabinet, and the frequency converter is connected with the central control cabinet by a circuit, the fan is located at the next stage of the frequency converter and is connected with the frequency converter through a line.
Furthermore, the central control cabinet is a cabinet with a PLC controller.
Furthermore, an ECC control screen is further arranged on the central control cabinet and is located on one side of the central control cabinet, and the ECC control screen is fixedly connected with the central control cabinet.
Still further, the ECC control panel is a dual mode control panel that is automatically operated and can be manually operated.
Further, the upper computer is an SCADA operation interface type controller.
The beneficial effects of the utility model reside in that: this frequency conversion fan control mechanism is used for rubbish pneumatic conveyor system, adopt manual control and according to the periodic automatic control of preset time, pressure sensor changes gravity signal into analog signal transmission and gives the PLC controller, the PLC controller compares current pressure value with the pressure value that sets up in advance, thereby be used for the rubbish transportation through converter control fan wind-force, can realize the frequency conversion control to the fan according to the weight size of throwing in rubbish, thereby save the cost, reach energy saving and emission reduction's effect, and then liberate operating personnel, let operating personnel can be more timely to the understanding of system operation situation, it is more convenient, whole operation fault-tolerant rate has been improved.
Drawings
Fig. 1 is a front view of the present invention.
Fig. 2 is a schematic diagram of the structure of the center control cabinet of the present invention.
Fig. 3 is a schematic view of the flow structure of the present invention.
Wherein: 1. put in mouthful control box 2, pipeline 3, pressure sensor
4. Central control cabinet 5, ECC control screen 6 and upper computer
7. Frequency converter 8 and fan
Detailed Description
The following provides a brief description of the embodiments of the present invention with reference to the accompanying drawings.
As shown in fig. 1, fig. 2 and fig. 3, the frequency conversion fan control mechanism for pneumatic conveying system of garbage is characterized in that: the intelligent control system comprises a putting-in port control box 1, a pipeline 2, a pressure sensor 3, a central control cabinet 4, an upper computer 6, a frequency converter 7 and a fan 8, wherein the putting-in port control box 1 is located outdoors, the putting-in port control box 1 is fixedly connected with outdoor facilities, the pipeline 2 is located at the lower part of the putting-in port control box 1, one end of the pipeline 2 is fixedly connected with the bottom of the putting-in port control box 1, the other end of the pipeline 2 is fixedly connected with the fan 8, the pressure sensor 3 is located at the bottom position of the pipeline 2 close to the putting-in port control box 1, the pressure sensor 3 is fixedly connected with the pipeline 2, the central control cabinet 4 is located at the next stage of the pressure sensor 3, the central control cabinet 4 is connected with the pressure sensor 3 by a circuit, an ECC control screen 5 is further arranged on the central control cabinet 4, the ECC control screen 5 is located at one side of the central control cabinet 4, and the ECC control cabinet 4 is fixedly connected with the central control cabinet 4, the upper computer 6 is located at the upper level of the central control cabinet 4, the upper computer 6 is connected with the central control cabinet 4 through a circuit, the frequency converter 7 is located at the lower level of the central control cabinet 4, the frequency converter 7 is connected with the central control cabinet 4 through a circuit, the fan 8 is located at the lower level of the frequency converter 7, and the fan 8 is connected with the frequency converter 7 through a circuit. The central control cabinet 4 is a cabinet with a PLC controller. The ECC control panel 5 is a dual mode control panel that operates automatically and can be operated manually. The upper computer 6 is an SCADA operation interface type controller.
The working mode is as follows: the variable-frequency fan control mechanism is used for a garbage pneumatic conveying system and mainly comprises a feeding port control box 1, a pipeline 2, a pressure sensor 3, a central control cabinet 4, an upper computer 6, a frequency converter 7 and a fan 8; when the garbage throwing-in device is used, firstly, a user opens a throwing-in opening of the throwing-in opening control box 1, garbage is thrown in, the thrown-in garbage can fall along a pipeline 2 and pass through a pressure sensor 3, and the pressure sensor 3 is arranged at the bottom of the pipeline 2 close to the throwing-in opening control box 1, so that the weight of the garbage is conveniently monitored; then, the pressure sensor 3 detects the weight of the garbage and transmits a signal to the central control cabinet 4, the central control cabinet 4 adopts a cabinet with a PLC (programmable logic controller), the pressure sensor 3 converts the detected pressure value into an analog electric signal, the analog electric signal is subjected to A/D (analog/digital) conversion and then is transmitted to the PLC through a circuit, and a 485 communication mode is adopted between the pressure sensor 3 and the PLC in the central control cabinet 4, so that the transmission of the analog electric signal is facilitated; then, the PLC controller in the central control cabinet 4 compares the current pressure with a preset pressure, if the detected pressure value is higher than the preset pressure value, it indicates that there is more garbage and the rotation speed of the fan 8 needs to be increased, at this time, the PLC controller in the central control cabinet 4 sends an instruction for increasing the output frequency of the fan 8 to the frequency converter 7 through a line, as the frequency sent by the frequency converter 7 increases, the rotation speed of the motor of the fan 8 also increases and the attraction force for the garbage also increases, and if the detected pressure value is lower than the preset pressure value, it indicates that there is less garbage and the rotation speed of the fan 8 needs to be decreased, at this time, the PLC controller in the central control cabinet 4 sends an instruction for decreasing the output frequency to the frequency converter 7, as the output frequency of the frequency converter 7 decreases, the rotation speed of the motor of the fan 8 also decreases and the attraction force for the garbage also decreases, and a prifodp communication mode is adopted between the PLC controller in the central control cabinet 4 and the frequency converter 7 and the fan 8, the real-time transmission of data is ensured to be completed as fast as possible, and the data transmission time increased by a communication protocol is reduced as much as possible; the central control cabinet 4 is also provided with an ECC control screen 5, the ECC control screen 5 adopts a dual-mode control screen which can be operated automatically and manually, the control panel comprises a control panel which can be operated manually for all units, when the upper computer 6 has a fault, an operator can complete the integral control through the manual control system of the ECC control screen 5, the upper computer 6 adopts an SCADA operation interface type controller, the operation interface of the upper computer 6 can be combined with the Internet for remote monitoring and operation, the main program of the whole system runs in the PLC controller in the central control cabinet 4, and when the upper computer 6 is in operation failure, the operator can also control the whole system through the manual mode of the ECC control screen 5 arranged on the central control cabinet 4; besides, the whole set of system can further combine the trend of current development, on-line configuration monitoring and mobile phone monitoring, it is convenient and fast to use, wholly adopt manual control and design according to the preset time periodicity, pressure sensor changes gravity signal into analog signal of telecommunication and sends PLC controller, PLC controller contrasts current pressure value and preset pressure value, thereby be used for rubbish transportation through converter control fan wind-force, can realize the frequency conversion control to the fan according to the weight size of throwing in rubbish, thereby save the cost, reach energy saving and emission reduction's effect, and then liberate operating personnel, make operating personnel can be more timely to the understanding of system operation situation, it is more convenient, whole operation fault-tolerant rate has been improved.
In the description of the present invention, it should be noted that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "inner", "outer", "top", "bottom", "end", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplification of the description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
While one embodiment of the present invention has been described in detail, the description is only a preferred embodiment of the present invention, and should not be considered as limiting the scope of the present invention. All the equivalent changes and improvements made according to the application scope of the present invention should still fall within the patent coverage of the present invention.
Claims (5)
1. The utility model provides a frequency conversion fan control mechanism for rubbish pneumatic conveying system which characterized in that: the system comprises a throwing port control box, a pipeline, a pressure sensor, a central control cabinet, an upper computer, a frequency converter and a fan, wherein the throwing port control box is positioned outdoors, the throwing port control box is fixedly connected with outdoor facilities, the pipeline is positioned at the lower part of the throwing port control box, one end of the pipeline is fixedly connected with the bottom of the throwing port control box, the other end of the pipeline is fixedly connected with the fan, the pressure sensor is positioned at the bottom position of the pipeline close to the throwing port control box, the pressure sensor is fixedly connected with the pipeline, the central control cabinet is positioned at the next stage of the pressure sensor, the central control cabinet is connected with the pressure sensor by a circuit, the upper computer is positioned at the upper stage of the central control cabinet, the upper computer is connected with the central control cabinet by a circuit, the frequency converter is positioned at the next stage of the central control cabinet, and the frequency converter is connected with the central control cabinet by a circuit, the fan is located at the next stage of the frequency converter and is connected with the frequency converter through a line.
2. The frequency conversion fan control mechanism for pneumatic conveying system of garbage according to claim 1, characterized in that: the central control cabinet is a cabinet with a PLC controller.
3. The frequency conversion fan control mechanism for pneumatic conveying system of garbage according to claim 1, characterized in that: the central control cabinet is also provided with an ECC control screen, the ECC control screen is positioned on one side of the central control cabinet, and the ECC control screen is fixedly connected with the central control cabinet.
4. The frequency conversion fan control mechanism for pneumatic conveying system of garbage according to claim 3, characterized in that: the ECC control screen is a dual-mode control screen which can be operated automatically and manually.
5. The frequency conversion fan control mechanism for pneumatic conveying system of garbage according to claim 1, characterized in that: the upper computer is an SCADA operation interface type controller.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121146882.4U CN215248138U (en) | 2021-05-26 | 2021-05-26 | Variable-frequency fan control mechanism for pneumatic garbage conveying system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121146882.4U CN215248138U (en) | 2021-05-26 | 2021-05-26 | Variable-frequency fan control mechanism for pneumatic garbage conveying system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215248138U true CN215248138U (en) | 2021-12-21 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121146882.4U Active CN215248138U (en) | 2021-05-26 | 2021-05-26 | Variable-frequency fan control mechanism for pneumatic garbage conveying system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215248138U (en) |
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2021
- 2021-05-26 CN CN202121146882.4U patent/CN215248138U/en active Active
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