Blower control system

Abstract

The utility model provides an air blower control system, which relates to the technical field of air blower control and comprises a host centralized control module and at least one air blower body, the host centralized control module comprises a controller and at least one frequency converter, and the controller and all the frequency converters are arranged in the same preset area; all the frequency converters are connected with the controller; the frequency converters are in one-to-one correspondence with the air blower bodies and are further connected with the main motors in the corresponding air blower bodies; the host centralized control module is in communication connection with the blower body. On the basis, the controller and all the frequency converters are arranged in the same preset area, so that a technician can intensively check the operation states of the controller and all the frequency converters in the same preset area for troubleshooting when the single equipment breaks down or the rotating speed needs to be adjusted; the related parameters can be intensively modified in the same preset area, so that the management efficiency of the air blower can be improved, and the management cost is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to the control technical field of air blower, specifically relates to an air blower control system. BACKGROUND

[0002] In the industrial production field, air blower as important gas conveying equipment is widely used in many industries, such as chemical industry, electric power, metallurgy etc.In the actual application process, multiple air blowers are often set, at present, most air blowers adopt single control mode, Figure 1 It is the principle diagram of the single control mode of the air blower in the prior art, referring to Figure 1 The air blower is internally provided with a host, a frequency converter and a main motor, the host controls the rotating speed of the main motor through the frequency converter, realizes the single control of the air blower, and the host of each air blower can communicate with DCS (Distributed Control System) through 485 communication mode, and DCS can realize the control of the air blower by sending control instructions to the host of any air blower.

[0003] This control mode can meet the basic operation demand under the conventional working condition, has certain stability and controllability.However, in some special working condition environment, the disadvantages of single control gradually highlight.For example, when the number of single air blowers is large, the setting position is far away from DCS, and the distribution is relatively dispersed, once single equipment fails or the rotating speed needs to be adjusted, technical personnel need to run to the site of each air blower, and a large amount of time and labor cost is consumed.

[0004] Based on this, how to improve the management efficiency of the air blower and reduce the management cost becomes a technical problem to be solved urgently. INVENTION CONTENTS

[0005] Therefore, an air blower control system is provided to solve the technical problems in the prior art.

[0006] The utility model adopts the following technical scheme:

[0007] An air blower control system comprises a host centralized control module and at least one air blower body.

[0008] The host centralized control module comprises a controller and at least one frequency converter, and the controller and all the frequency converters are arranged in the same preset area.

[0009] All the frequency converters are connected with the controller.

[0010] The frequency converters correspond to the air blower bodies one by one, and the frequency converters are also connected with the main motors in the corresponding air blower bodies.

[0011] The host centralized control module is in communication connection with the blower body.

[0012] Optionally, the host centralized control module is in communication connection with the blower body in a hardwired manner.

[0013] Optionally, the host centralized control module is in communication connection with the blower body, and specifically includes:

[0014] The controller is in communication connection with the blower body; or,

[0015] The frequency converter is in communication connection with the corresponding blower body.

[0016] Optionally, the host centralized control module further includes a display module.

[0017] The display module is connected with the controller.

[0018] Optionally, the host centralized control module further includes an input module.

[0019] The input module is connected with the controller.

[0020] Optionally, the input module includes a key input module and / or a smart touch screen.

[0021] Optionally, the controller is a programmable logic controller.

[0022] Optionally, the blower control system of the application further includes an alarm module.

[0023] The alarm module is connected with the controller and is arranged in the same preset area as the host centralized control module.

[0024] Optionally, the alarm module is an audible and visual alarm.

[0025] The utility model discloses above technical scheme, a kind of air blower control system, comprising: host computer centralized control module and at least one air blower body;Host computer centralized control module includes controller and at least one frequency converter, controller and all frequency converters are arranged in the same preset area;All frequency converters are connected with controller;Frequency converter and air blower body one-to-one correspondence, frequency converter is also connected in corresponding air blower body main motor;Host computer centralized control module is communicated with air blower body connection.Based on this, since controller and all frequency converters are arranged in the same preset area, so when single device fails, or when speed needs to be adjusted, technician can centrally check the running state of controller and all frequency converters in the same preset area to troubleshoot, and, can centrally modify relevant parameters in the same preset area, without running in each air blower field, so that the application can improve the management efficiency of air blower, and reduce management cost. BRIEF DESCRIPTION OF DRAWINGS

[0026] In order to more clearly illustrate the technical scheme in the embodiments of the present application or the prior art, the drawings needed to be used in the following embodiment or prior art description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained without creative labor.

[0027] Figure 1 is the principle diagram of the air blower single control mode in the prior art;

[0028] Figure 2 is the structural schematic diagram of the air blower control system provided by the embodiment of the present application. DETAILED DESCRIPTION

[0029] In order to make the purpose, technical scheme and advantages of the present application more clear, the technical scheme of the present application will be described in detail below. Obviously, the described embodiments are only some embodiments of the present application, not all embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor belong to the scope of the present application.

[0030] Figure 2 is the structural schematic diagram of the air blower control system provided by the embodiment of the present application. As shown in Figure 2 , the air blower control system, comprising: host computer centralized control module 11 and at least one air blower body 12 (the number of air blower body in the drawing is equal to 2 as an example to illustrate).

[0031] The main centralized control module 11 comprises a controller 111 and at least one frequency converter 112, the controller 111 and all the frequency converters 112 are arranged in the same preset area, for example, arranged in a special control room at a proper distance and convenient wiring.

[0032] The control cables of all the frequency converters 112 go to the controller 111, so that all the frequency converters 112 are connected with the controller 111, the frequency converter 112 corresponds to the blower body 12 one by one, and the frequency converter 112 is also connected with the power line of the main motor 121 in the corresponding blower body 12, and the main centralized control module 11 is in communication connection with the blower body 12.

[0033] In actual application process, after the blower body 12 confirms that the state is ready, the blower body 12 sends a start instruction to the controller 111 through the communication connection between the blower body 12 and the controller 111, and the start instruction can be a digital instruction. After receiving the start instruction sent by the blower body 12, the controller 111 determines that the blower body 12 has made the start preparation according to the start instruction, and controls the corresponding frequency converter 112 to start, so as to start the blower body 12. In the starting process, the controller 111 can convert the 4-20 mA analog signal into the corresponding frequency given to the frequency converter 112 according to the working condition requirement, so as to adjust the rotating speed of the main motor in the blower body 12, and then meet the corresponding gas requirement. The two 4-20 mA analog output signals in the frequency converter 112 are used to feed back the real-time main motor rotating speed and current to the controller 111, and after receiving the real-time main motor rotating speed and current, the controller 111 will send it to the preset display module, so that the display module displays the real-time main motor rotating speed and current, and then the technical personnel can know the real-time main motor rotating speed and current according to the display content of the preset display module, so as to facilitate the technical personnel to monitor whether the single blower equipment is running normally or the gas meets the working condition requirement. In addition, the controller 111 can also send other parameters to the preset display module, so as to facilitate the technical personnel to know other parameters.

[0034] The utility model discloses adopt above -mentioned technical scheme, through with the host computer (namely controller) and frequency changer from the separation of the single drum fan, and centralizedly set in the same area, so, it is convenient to wiring arrangement, and, when the single equipment appears the fault, the technical personnel can in the same preset area centralizedly check the running state of controller and all frequency converters, and carry out trouble shooting and maintenance, do not need to run in each drum fan field, greatly improve the trouble shooting and maintenance efficiency, reduce the trouble shooting and maintenance cost, and, when needing to adjust motor speed or other parameters, the technical personnel also do not need to run in each drum fan field, and because each frequency converter 112 shares a controller 111, make the technical personnel can batch adjustment, also can single body adjustment, greatly improve the parameter adjustment efficiency, and reduce the parameter adjustment cost.

[0035] In the embodiment of the utility model, the host computer centralized control module 11 is in communication connection with the drum fan body 12 by hardwiring.

[0036] In the embodiment of the utility model, the controller 111 can be in communication connection with the drum fan body 12 directly to realize the communication connection between the host computer centralized control module 11 and the drum fan body 12. In addition, the frequency converter 112 can also be in communication connection with the corresponding drum fan body 12, and the controller 111 exchanges data with the corresponding drum fan body 12 through the frequency converter 112, so as to realize the communication connection between the host computer centralized control module 11 and the drum fan body 12.

[0037] In the embodiment of the utility model, the host computer centralized control module 11 can also include a display module, which is connected with the controller 111 and used for displaying the data sent by the controller 111, for example, the main motor speed and current sent by the controller 111.

[0038] In the embodiment of the utility model, the host computer centralized control module 11 can also include an input module, which is connected with the controller 111 and used for obtaining user input data and sending the user input data to the controller 111. The input module can include a key input module and / or an intelligent touch screen in the prior art.

[0039] In the embodiment of the utility model, the controller can be a PLC (Programmable Logic Controller, programmable logic controller).

[0040] In the embodiment of the utility model, the air blower control system can further comprise: an alarm module, the alarm module is connected with the controller 111, and is arranged in the same preset area with the host centralized control module, and is used for executing corresponding alarm action according to the alarm instruction sent by the controller 111.The alarm module can be an audible and visual alarm or other alarm device in the prior art.The controller 111 can send an alarm instruction to the alarm module when determining that the air blower is running abnormally, so that the technician can learn the current abnormal situation in time according to the alarm prompt of the alarm module.

[0041] It can be understood that the same or similar parts in the above-mentioned embodiments can be mutually referred to, and the contents not described in detail in some embodiments can be referred to the same or similar contents in other embodiments.

[0042] It should be noted that, in the description of the utility model, the terms "first", "second", etc. are only used for the purpose of description, and cannot be understood as indicating or implying relative importance. In addition, in the description of the utility model, unless otherwise specified, the meaning of "a plurality of" is at least two.

[0043] In the description of the present application, the description of the terms "one embodiment", "some embodiments", "example", "specific example" or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In the present application, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0044] Although the embodiments of the utility model have been shown and described above, it can be understood that the above-mentioned embodiments are exemplary and cannot be understood as limiting the utility model. The ordinary skilled in the art can change, modify, replace and modify the above-mentioned embodiments within the scope of the utility model.

Claims

1. A blower control system, characterized by, The application relates to a centralized control module for a plurality of air blowers. The application relates to a centralized control module for a plurality of air blowers. The application relates to a centralized control module for a plurality of air blowers. The application relates to a centralized control module for a plurality of air blowers. The application relates to a centralized control module for a plurality of air blowers. The application relates to a centralized control module for a plurality of air blowers.

2. The blower control system of claim 1, wherein, The application relates to a centralized control module for a plurality of air blowers.

3. The blower control system of claim 1 or 2, wherein, The application relates to a centralized control module for a plurality of air blowers. The application relates to a centralized control module for a plurality of air blowers. The application relates to a centralized control module for a plurality of air blowers.

4. The blower control system of claim 1, wherein, The application relates to a centralized control module for a plurality of air blowers. The application relates to a centralized control module for a plurality of air blowers.

5. The blower control system of claim 1, wherein, The application relates to a centralized control module for a plurality of air blowers. The application relates to a centralized control module for a plurality of air blowers.

6. The blower control system of claim 5, wherein, The application relates to a centralized control module for a plurality of air blowers.

7. The blower control system of claim 1, wherein, The application relates to a centralized control module for a plurality of air blowers.

8. The blower control system of claim 1, wherein, The application relates to a centralized control module for a plurality of air blowers. The application relates to a centralized control module for a plurality of air blowers. The application relates to a centralized control module for a plurality of air blowers.

9. The blower control system of claim 8, wherein, The application relates to a centralized control module for a plurality of air blowers. The application relates to a centralized control module for a plurality of air blowers. The application relates to a centralized control module for a plurality of air blowers. The application relates to a centralized control module for a plurality of air blowers. The application relates to a centralized control module for a plurality of air blowers. The application relates to a centralized control module for a plurality of air blowers. The application relates to a centralized control module for a plurality of air blowers. The application relates to a centralized control module for a plurality of air blowers. The application relates to a centralized control module for a plurality of air blowers. The application relates to a centralized control module for a plurality of air blowers. The application relates to a centralized control module for a plurality of air blowers. The application relates to a centralized control module for a plurality of air blowers. The application relates to a centralized control module for a plurality of air blowers. The application relates to a centralized control module for a plurality of air blowers. The application relates to a centralized control module for a plurality of air blowers. The application relates to a centralized control module for a plurality of air blowers. The application relates to a centralized control module for a plurality of air blowers. The application relates to a centralized control module for a plurality of air blowers. The application relates to a centralized control module for a plurality of air blowers. The application relates to a centralized control module for a plurality of air blowers. The application relates to a centralized control module for a plurality of air blowers. The application relates to a centralized control module for a plurality of air blowers. The application relates to a centralized control module for a plurality of air blowers. The application relates to a centralized control module for a plurality of air blowers. The application relates to a centralized control module for a plurality of air blow

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