Anti-interference electricity control system for polyester production equipment

Abstract

The utility model provides an anti-interference electricity control system for polyester production equipment, which comprises a control unit UPS (uninterrupted power supply), a voltage sensor, a first contactor, a second contactor and an intermediate relay, and is characterized in that the intermediate relay is connected with the control unit and is used for controlling the first contactor and the second contactor to act or reset; when the anti-interference electricity control system for the polyester production equipment detects interference electricity, the output end of a UPS (Uninterrupted Power Supply) can be connected with a control loop of the polyester production equipment, and meanwhile, a power supply of the control loop of the polyester production equipment is disconnected from the control loop of the polyester production equipment; the UPS supplies power to the control loop of the polyester production equipment, so that normal operation of the equipment is guaranteed, and the stability and safety of the polyester production equipment are improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of anti-electrical shaking management, and in particular relates to an anti-electrical shaking control system for polyester production equipment. Background Art

[0002] "Power sway" refers to the phenomenon of short-term voltage fluctuation or short-term power outage in the power grid caused by lightning strike, short circuit or other reasons. For polyester production equipment, power sway causes the contactor coil to lose power and disconnect and the control system to lose power and shut down, affecting the stability and safety of polyester production equipment.

[0003] Therefore, it is necessary to design an anti-electrical shaking control system for polyester production equipment that can prevent the control circuit from being affected by electric shaking and improve the operating stability and safety of polyester production equipment to solve the current technical problems. Summary of the invention

[0004] In view of the deficiencies in the prior art, the utility model provides an anti-electrical shaking control system for polyester production equipment, which can prevent the control circuit from being affected by electric shaking and improve the operating stability and safety of the polyester production equipment.

[0005] The technical solution of the utility model is: an anti-electricity shaking control system for polyester production equipment, comprising:

[0006] Control unit;

[0007] UPS power supply, the UPS power supply stores electric energy to supply power to the control circuit of the polyester production equipment when power fluctuation occurs;

[0008] A voltage sensor, the voltage sensor is connected to the control unit, and the voltage sensor is used to collect the output voltage value of the power supply of the polyester production equipment control loop;

[0009] A first contactor, the first contactor is used to control the disconnection or connection between the output end of the UPS power supply and the control circuit of the polyester production equipment;

[0010] A second contactor, the second contactor is used to control the connection or disconnection between the power supply of the polyester production equipment control circuit and the polyester production equipment control circuit;

[0011] An intermediate relay is connected to the control unit and is used to control the first contactor and the second contactor to operate or reset.

[0012] A power module is connected in parallel to the UPS power supply, and the power module is used to convert AC220V into DC24V. The output end of the UPS power supply outputs DC24V. The normally open auxiliary contact of the first contactor is connected in series between the output end of the UPS power supply and the control circuit of the polyester production equipment, and the normally closed auxiliary contact of the second contactor is connected in series between the output end of the power module and the control circuit of the polyester production equipment.

[0013] A power module is connected in series between the UPS power supply and the control circuit of the polyester production equipment. The output end of the UPS power supply outputs AC220V. The power module is used to convert AC220V into DC24V. The normally open auxiliary contacts of the first contactor are connected in series between the UPS power supply and the power module. The normally closed auxiliary contacts of the second contactor are connected in parallel to the normally open auxiliary contacts of the UPS power supply and the first contactor.

[0014] The voltage sensor is connected to an analog-to-digital converter, and the analog-to-digital converter is connected to the control unit.

[0015] The control unit is a single chip microcomputer or a PLC controller.

[0016] The beneficial effects of the utility model are as follows: when an electric shaking is detected, the anti-electrical shaking control system for polyester production equipment can connect the output end of the UPS power supply with the control circuit of the polyester production equipment, and disconnect the power supply of the control circuit of the polyester production equipment from the control circuit of the polyester production equipment, and supply power to the control circuit of the polyester production equipment through the UPS power supply, thereby ensuring the normal operation of the equipment and improving the stability and safety of the polyester production equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 The utility model is a principle block diagram of the anti-electrical shaking control system used in polyester production equipment.

[0018] Figure 2 The present invention is a circuit diagram of a connection method between a UPS power supply and a power module.

[0019] Figure 3 The present invention is a circuit diagram of another connection method between the UPS power supply and the power module. DETAILED DESCRIPTION

[0020] Various exemplary embodiments of the present invention will now be described in detail with reference to the accompanying drawings. The description of the exemplary embodiments is merely illustrative and is by no means intended to limit the present invention and its application or use. The present invention can be implemented in many different forms and is not limited to the embodiments described herein. These embodiments are provided to make the present invention thorough and complete and to fully express the scope of the present invention to those skilled in the art. It should be noted that unless otherwise specifically stated, the relative arrangement of the components and steps, the composition of the materials, the numerical expressions and the numerical values ​​set forth in these embodiments should be interpreted as being merely exemplary and not as limiting.

[0021] The words "first", "second" and similar words used in the present invention do not indicate any order, quantity or importance, but are only used to distinguish different parts. The words "include" or "comprise" and similar words mean that the elements before the word include the elements listed after the word, and do not exclude the possibility of including other elements. "Up", "down", "left", "right" and the like are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0022] like Figure 1As shown in Figure 3, the anti-power-shaking control system for polyester production equipment includes: a control unit 1; a UPS power supply 6, which stores electric energy to supply power to the control circuit of the polyester production equipment when a power shake occurs; a voltage sensor 2, which is connected to the control unit 1 and is used to collect the output voltage value of the power supply of the control circuit of the polyester production equipment; a first contactor KM1, which is used to control the disconnection or connection between the output end of the UPS power supply 6 and the control circuit of the polyester production equipment; a second contactor KM2, which is used to control the connection or disconnection between the power supply of the control circuit of the polyester production equipment and the control circuit of the polyester production equipment; an intermediate relay 4, which is connected to the control unit 1 and is used to control the action or reset of the first contactor KM1 and the second contactor KM2; in this embodiment, the control unit 1 collects the output voltage of the polyester production equipment in real time through the voltage sensor 2. The control circuit power output voltage value of the polyester production equipment is compared with the preset voltage normal range value to identify the occurrence of power shaking. When power shaking occurs, the control unit 1 immediately outputs a signal to the intermediate relay 4, and the intermediate relay 4 is actuated to control the first contactor KM1 and the second contactor KM2 to connect the output end of the UPS power supply 6 with the polyester production equipment control circuit, and at the same time disconnect the polyester production equipment control circuit power supply from the polyester production equipment control circuit, and supply power to the polyester production equipment control circuit through the UPS power supply 6 to ensure the coil is in the closed state, ensure the normal operation of the equipment, and improve the stability and safety of the polyester production equipment; the polyester production equipment control circuit power supply mentioned above refers to the AC220V power supply for supplying power to the polyester production equipment control circuit. In the prior art, the AC220V power supply is converted into DC24V by the power module 5 for use in the polyester production equipment control circuit.

[0023] In some embodiments, a specific connection method between the UPS power supply 6 and the power module 5 is as follows: Figure 2As shown, a power module 5 is connected in parallel to the UPS power supply 6, and the power module 5 is used to convert AC220V into DC24V. The output end of the UPS power supply 6 outputs DC24V. The normally open auxiliary contact of the first contactor KM1 is connected in series between the output end of the UPS power supply 6 and the control circuit of the polyester production equipment, and the normally closed auxiliary contact of the second contactor KM2 is connected in series between the output end of the power module 5 and the control circuit of the polyester production equipment; the power module 5 and the UPS power supply 6 both output DC24V that can be used for the control circuit of the polyester production equipment. When the first contactor KM1 and the second contactor KM2 are actuated, the output end of the UPS power supply 6 is connected to the control circuit of the polyester production equipment, and the output end of the power module 5 is disconnected from the control circuit of the polyester production equipment, and the output of the UPS power supply 6 is used to supply power to the control circuit of the polyester production equipment; when the first contactor KM1 and the second contactor KM2 are reset, the output end of the UPS power supply 6 is disconnected from the control circuit of the polyester production equipment, and the output end of the power module 5 is connected to the control circuit of the polyester production equipment, and the output of the power module 5 is used to supply power to the control circuit of the polyester production equipment.

[0024] In some embodiments, another specific connection method between the UPS power supply 6 and the power module 5 is as follows: Figure 3 As shown, a power module is connected in series between the UPS power supply 6 and the control circuit of the polyester production equipment. The output end of the UPS power supply 6 outputs AC220V. The power module 6 is used to convert AC220V into DC24V. The normally open auxiliary contacts of the first contactor KM1 are connected in series between the UPS power supply 6 and the power module 5. The normally closed auxiliary contacts of the second contactor KM2 are connected in parallel with the normally open auxiliary contacts of the UPS power supply 6 and the first contactor KM1.

[0025] In some embodiments, the voltage sensor 2 is connected to an analog-to-digital converter 3, which is connected to the control unit 1. The analog-to-digital converter 3 is used to convert the voltage analog signal collected by the voltage sensor 2 into a power digital signal.

[0026] In some embodiments, the control unit 1 is a single chip microcomputer or a PLC controller.

[0027] So far, various embodiments of the present invention have been described in detail. In order to avoid obscuring the concept of the present invention, some details known in the art are not described. Based on the above description, those skilled in the art can fully understand how to implement the technical solution disclosed here.

[0028] The above-mentioned embodiments only express some implementation methods of the utility model, and the description is relatively specific and detailed, but it cannot be understood as limiting the scope of the utility model patent. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the utility model, which all belong to the protection scope of the utility model. Therefore, the protection scope of the utility model patent shall be based on the attached claims.

Claims

1. An anti-electricity shaking control system for polyester production equipment, characterized in that: include: Control unit; UPS power supply, the UPS power supply stores electric energy to supply power to the control circuit of the polyester production equipment when power fluctuation occurs; A voltage sensor, the voltage sensor is connected to the control unit, and the voltage sensor is used to collect the output voltage value of the power supply of the polyester production equipment control loop; A first contactor, the first contactor is used to control the disconnection or connection between the output end of the UPS power supply and the control circuit of the polyester production equipment; A second contactor, the second contactor is used to control the connection or disconnection between the power supply of the polyester production equipment control circuit and the polyester production equipment control circuit; An intermediate relay is connected to the control unit and is used to control the first contactor and the second contactor to operate or reset.

2. The anti-electricity shaking control system for polyester production equipment according to claim 1 is characterized in that: A power module is connected in parallel to the UPS power supply, and the power module is used to convert AC220V into DC24V. The output end of the UPS power supply outputs DC24V. The normally open auxiliary contact of the first contactor is connected in series between the output end of the UPS power supply and the control circuit of the polyester production equipment, and the normally closed auxiliary contact of the second contactor is connected in series between the output end of the power module and the control circuit of the polyester production equipment.

3. The anti-electricity shaking control system for polyester production equipment according to claim 1 is characterized in that: A power module is connected in series between the UPS power supply and the control circuit of the polyester production equipment. The output end of the UPS power supply outputs AC220V. The power module is used to convert AC220V into DC24V. The normally open auxiliary contacts of the first contactor are connected in series between the UPS power supply and the power module. The normally closed auxiliary contacts of the second contactor are connected in parallel to the normally open auxiliary contacts of the UPS power supply and the first contactor.

4. The anti-electricity shaking control system for polyester production equipment according to claim 1, characterized in that: The voltage sensor is connected to an analog-to-digital converter, and the analog-to-digital converter is connected to the control unit.

5. The anti-electricity shaking control system for polyester production equipment according to claim 1, characterized in that: The control unit is a single chip microcomputer or a PLC controller.

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