CN213601089U

CN213601089U - Energy-saving control device of dust collector

Info

Publication number: CN213601089U
Application number: CN202021355427.0U
Authority: CN
Inventors: 侯金来; 郑林; 张化民
Original assignee: Nanxiong Tongzhifu Cement Building Material Investment Co ltd
Current assignee: Nanxiong Tongzhifu Cement Building Material Investment Co ltd
Priority date: 2020-07-12
Filing date: 2020-07-12
Publication date: 2021-07-02
Anticipated expiration: 2030-07-12

Abstract

The utility model discloses a dust collector energy-saving control device, which comprises a pressure sensing component, a process component, a transmitting component, a dust removing component, a pneumatic control component, a far and near component, an output component, a control unit, a frequency conversion component, an environmental protection component and a signal data acquisition and processing component, the pressure sensor, the process component controller, the transmitting component controller, the dust removal component controller, the environmental protection component controller, the pneumatic control component controller, the far and near component controller, the output component controller and the hardware frequency converter casing component terminal strip of the signal data acquisition and processing component can be respectively electrically connected with the pressure sensor component, the process component, the transmitting component, the dust removal component, the environmental protection component, the pneumatic control component, the far and near component and the output component, the synchronous working state signal analog signal acquisition device can be used for acquiring a synchronous working state signal analog signal of the component and converting the working state signal into a synchronous controllable signal. The utility model discloses stable in quality, gather dust stably, equipment stability is good, equipment fault rate is low.

Description

Energy-saving control device of dust collector

Technical Field

The utility model relates to a cement building materials dust collector energy-saving control technical field specifically is a dust collector energy-saving control device.

Background

The cement plant is an industry with high energy consumption and high pollution in China, wherein the dust collector is one of high-power-consumption equipment, the design allowance of the dust collector is generally large, and the waste of electric energy is serious due to the matching deficiency with the field process control. The utility model discloses energy-saving control accords with energy-conservation, environmental protection, circular economy development. An environment-friendly device of a dust collector in the field of cement building materials. Because the original dust collector does not have the power-saving function. The rotating speed of the equipment is 1500 rpm at power frequency operation, the dust removal discharge capacity is constant, and the equipment is fully loaded with pressure; the flow rate was 100%. And the dust remover system is not perfect and scientific management, and the design margin is large, and the dust collection process is adjusted by adopting a valve to be rough. The dust collector belongs to square torque equipment, the load reaches the rated (98%) load rate before modification, the pressure is 80%, the flow of the shutoff valve is 60%, and the interception consumption electric energy is large. The dust collection energy consumption is high, the efficiency is low, and the economic benefit is poor. The dust collector is an environment-friendly dust collection key device in the field of cement building materials, and is widely applied to the fields of cement building materials and industrial dust collection and environment protection. The main power consumption part of the dust collector is a motor, and the power consumption for dragging a dust collection process fan is high and accounts for 90% of the load power of the whole machine. The dust collector is generally operated circularly and uninterruptedly according to the process requirements, and after the dust collector is started, the motor generally runs at full speed and full voltage (380V).

According to the requirements of dust-collecting process, the pressure and flow are changed according to the requirements of dust-collecting effect, its flow and pressure are defined according to the parameter of process, and the surplus energy is implemented by throttling through flow throttling valve and pressure control.

The dust collection time works along with the cement production time sequence, and the throttling consumes energy along with the operation. Through improving the test results of the front and the back electric energy, 60 percent of electric energy is wasted by throttling, and the dust collector can achieve the dust collecting and environment-friendly effects as long as about 40 percent of electric energy. In addition, reactive power energy is wasted in the process no-load and light-load time, the inductive load power factor of the motor is very low (about 085), most electric equipment cannot be subjected to capacitance compensation, and the electric energy waste is very serious.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a dust collector energy-saving control device solves the technical problem that the background art provided.

In order to achieve the above object, the utility model provides a following technical scheme: an energy-saving control device of a dust collector comprises a pressure sensing component, a process component, a transmitting component, a dust removing component, an air control component, a near-far component, an output component, a control unit, a frequency conversion component, an environment-friendly component and a signal data acquisition and processing component, the pressure sensor, the process component controller, the transmitting component controller, the dust removal component controller, the environmental protection component controller, the pneumatic control component controller, the far and near component controller, the output component controller and the hardware frequency converter casing component terminal strip of the signal data acquisition and processing component can be respectively electrically connected with the pressure sensor component, the process component, the transmitting component, the dust removal component, the environmental protection component, the pneumatic control component, the far and near component and the output component, the device can be used for acquiring synchronous working state signal analog signals of the components and converting the working state signals into synchronous controllable signals;

the control unit receives the digital signals output by the data acquisition and processing component and sends control signals to the pressure sensing component, the process component, the transmitting component, the dust removing component, the environment-friendly component, the pneumatic control component, the near-far component and the output component according to the input signals so as to form a complete control energy-saving control system.

Preferably, the control unit is a programmable logic controller and a control program.

Preferably, the device also comprises a frequency conversion component connected with the control unit, wherein the frequency conversion component receives analog control signals of the control unit, the output component and the pressure sensing component and controls the motor to realize synchronous speed regulation according to synchronous control signals of actions of the components.

Preferably, the signal data acquisition and processing part is a DCS controller, and an output end of the signal data acquisition and processing part is connected with a programmable input end of the frequency conversion part.

Compared with the prior art, the beneficial effects of the utility model are as follows:

1. the utility model adopts the digital control technology, has fast reaction speed, mechanical characteristics suitable for the adjustment of dust collector technology, speed and environment-friendly dust removal effect, and is close to the control technology of a similar servo system; the time sequence operation digital control frequency range of the utility model is 0.01Hz-50Hz, and the pressure, the flow and the pressure before the transformation are not changed; cancel the choke valve thereby make and use the utility model discloses gather dust, environmental protection effect is stable, equipment stability is good, equipment fault rate is low, reduce consumptive material extension equipment life.

2. The utility model adopts the programmable logic device to control, and improves the control precision; the programmable logic device has the functions of power-off maintaining and power-restoration memory, when the voltage of a power grid in a factory fluctuates in an instantaneous lightning or is powered off, the control signal output to the frequency conversion component by the programmable logic device is unchanged, so that the rotating speed of the motor output by the frequency conversion component is kept stable, and the original dust removal, environmental protection and quality can be met; it can make the dust collector gather dust volume better, product quality is stable, and the effect of economizing on electricity is higher.

3. The utility model discloses can adapt to all kinds of dust collector power size and distinguish, the drive power component that the big needs of drive power correspond. The synchronous signals of the actions of the programmable logic device, the pressure induction and the flow process sensor are transmitted to analog smooth control signals, and flow throttle valves and pressure signals are not needed, so that the synchronous smooth control of the process can be realized by using the action signals of the original machine in a large-scale dust collector coaxial multi-blade wheel, a multi-motor and a throttle valve set.

Drawings

Fig. 1 is a schematic control diagram of the present invention.

In the figure: 1. a pressure sensing component; 2. a process component; 3. a transmitting member; 4. a dust removal component; 5. a pneumatic control component; 6. a distal member; 7. an output member; 8. a control unit; 9. a frequency conversion component; 10. an environmentally friendly component; 20. and a signal data acquisition and processing component.

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 without creative work belong to the protection scope of the present invention.

Referring to fig. 1, the present invention provides a technical solution of a dust collector energy saving control device: the utility model provides a dust collector energy-saving control device, includes forced induction part 1, process part 2, send part 3, dust removal part 4, gas accuse part 5, far and near part 6, output part 7, the control unit 8, frequency conversion part 9, environmental protection part 10 and signal data acquisition processing part 20, its characterized in that: the signal data acquisition and processing component 20 comprises a pressure sensor, a process component controller, a transmission component controller, a dust removal component controller, an environment-friendly component controller, a pneumatic control component controller, a far and near component controller, an output component controller and a hardware frequency converter shell component terminal strip which can be respectively electrically connected with the pressure sensor component 1, the process component 2, the transmission component 3, the dust removal component 4, the environment-friendly component 10, the pneumatic control component 5, the far and near component 6 and the output component 7, and can be used for acquiring synchronous working state signal analog signals of the components and converting the working state signals into synchronous controllable signals;

the control unit 8 receives the digital signals output by the data acquisition and processing component 20, and sends control signals to the pressure sensing component 1, the process component 2, the transmitting component 3, the dust removal component 4, the environmental protection component 10, the pneumatic control component 5, the near-far component 6 and the output component 7 according to the input signals so as to form a complete control energy-saving control system.

The control unit 8 is a Programmable Logic Controller (PLC).

The motor speed regulation device is characterized by further comprising a frequency conversion component 9 connected with the control unit 8, wherein the frequency conversion component 9 receives analog control signals of the control unit 8, the output component 7 and the pressure sensing component 1, and controls the motor to realize synchronous speed regulation according to action synchronous control signals of all components.

The signal data acquisition and processing part 20 is a DCS controller, and the output end of the signal data acquisition and processing part 20 is connected with the programmable input end of the frequency conversion part 9.

The signal data acquisition and processing part 20 is connected with the digital port and the analog port of the frequency conversion part 9.

Because the PLC has the functions of power-off maintaining and power-restoration memory, when the voltage of a power grid in a factory fluctuates in an instantaneous lightning or is powered off, the PLC outputs a maintaining signal continuously, the frequency conversion component is used for receiving a control signal transmitted by the control unit continuously, and the frequency conversion output frequency and the rotating speed of the motor are kept unchanged.

The method is characterized in that signals of a dust collector process and different parts are input into a programmable logic controller, synchronous control of the rotating speed and the process of a motor of the dust collector is further realized by software programming, content parameters needing address setting in a frequency conversion part are matched, a CPU accesses the content of port address units of each process section output by a PLC management software program according to the set parameters, and the purposes of synchronous setting and start-stop of the internal parameters of the frequency conversion part and stable speed regulation are realized to achieve energy-saving operation.

The working principle is as follows: use the utility model discloses a during dust collector controlling means, including the real time monitoring step for the synchronous operating condition signal of the technology of the work piece of collection corresponding each technology, and handle this operating condition signal, and send control signal to control each work piece according to the synchronous operating condition signal of technology after handling, the work piece includes forced induction part 1, process part 2, transmission part 3, dust removal part 4, environmental protection part 10, gas accuse part 5, far and near accuse 6 and output part 7.

The real-time monitoring step comprises the following steps: a signal acquisition step, which is used for acquiring a working state signal of process synchronization; a signal processing step for programming the working state signal into a synchronous digital signal; judging, comparing, feeding back signals and executing, wherein the steps are used for comparing the programmed digital and analog signals of the process synchronous working state signals with preset parameters stored in the control unit; otherwise, returning the slave setting parameters; and a control step, namely, the original machine sends out a process synchronous control analog signal source to realize control and drive of the frequency conversion component 9.

The signal data acquisition and processing component 20 is used for acquiring working program signals of the pressure sensing component 1, the process component 2, the transmitting component 3, the dust removal component 4, the environment-friendly component 10, the pneumatic control component 5, the near-far component 6 and the output component 7, namely, synchronous signals of all process flows of the dust collector are acquired and transmitted to the PLC to be encoded into a PLC digital signal by a software program, content data needing to be set for addresses in the frequency conversion component are matched, the CPU accesses the content of address units of all process ports output by the PLC management software program according to the set data addresses, all process operation driving ports are determined, synchronous operation of the frequency conversion component and the dust collector is realized, the pressure flow is equal to the actual kinetic energy consumption of all process sections, the process dust removal is stabilized, the environment-friendly requirements are stabilized, and the purpose of high-efficiency operation and energy conservation.

The control frequency conversion component 9 is from the distance control and analog synchronous signal of the dust remover, each dust removal process stage needs different signals, the frequency of the frequency conversion component is controlled according to the PLC programming signal, different rotating speeds of the motor are realized, and each process stage is enabled to provide flow which is synchronous and stable with the process and just meets the process action requirement. The flow throttle valve has the largest opening, and the pressure flow is not changed according to the process requirements. The throttle valve is cancelled, so that basically no throttling energy is consumed, and the energy is fully utilized.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a dust collector energy-saving control device, includes forced induction part (1), process part (2), send part (3), dust removal part (4), gas accuse part (5), far and near part (6), output part (7), the control unit (8), frequency conversion part (9), environmental protection part (10) and signal data acquisition processing part (20), its characterized in that: the signal data acquisition and processing component (20) comprises a pressure sensor, a process component controller, a transmitting component controller, a dust removal component controller, an environment-friendly component controller and a pneumatic control component controller, wherein the far and near component controller, the output component controller and a hardware frequency converter shell component terminal strip can be respectively electrically connected with the pressure sensing component (1), the process component (2), the transmitting component (3), the dust removal component (4), the environment-friendly component (10), the pneumatic control component (5), the far and near component (6) and the output component (7) and can be used for acquiring synchronous working state signal simulation signals of the components and converting the working state signals into synchronous controllable signals;

the control unit (8) receives the digital signals output by the data acquisition and processing component (20) and sends control signals to the pressure sensing component (1), the process component (2), the transmitting component (3), the dedusting component (4), the environmental protection component (10), the pneumatic control component (5), the near-far component (6) and the output component (7) according to the input signals to form a complete control energy-saving control system.

2. The energy-saving control device of the dust collector as claimed in claim 1, wherein: the control unit (8) is a programmable logic controller and a control program.

3. The energy-saving control device for the dust collector as claimed in claim 1 or 2, wherein: the motor speed regulation system is characterized by further comprising a frequency conversion component (9) connected with the control unit (8), wherein the frequency conversion component (9) receives analog control signals of the control unit (8), the output component (7) and the pressure sensing component (1) and controls the motor to realize synchronous speed regulation according to synchronous control signals of actions of the components.

4. The energy-saving control device of the dust collector as claimed in claim 1, wherein: the signal data acquisition and processing part (20) is a DCS controller, and the output end of the signal data acquisition and processing part (20) is connected with the programmable input end of the frequency conversion part (9).