A device for improving the control technology of SIPOS 5 actuator

Abstract

The present invention relates to the field of SIPOS 5 actuator control technology, and specifically to a device for improving SIPOS 5 actuator control technology, comprising a transformer, a motor and a signal gear unit, wherein the motor is connected to an overcurrent protector through three groups of electrical branches, the overcurrent protector is connected to a circuit breaker through three electrical branches, the signal gear unit is fixedly mounted with a motor, the output end of the motor is connected to an output shaft through gear rotation, a feedback device base is fixedly mounted on the output shaft, and a first cam and a second cam are respectively fixedly mounted on the feedback device base through locking nuts. The device for improving SIPOS 5 actuator control technology simplifies the control unit as a whole, makes the overall structure of the device simpler, effectively reduces the maintenance cost, improves the stability of the actuator, and reduces the maintenance workload of maintenance personnel.

Description

Technical Field

[0001] The invention relates to the technical field of SIPOS 5 actuator control, and in particular to a device for improving the SIPOS 5 actuator control technology. Background Art

[0002] At present, SIPOS 5 actuators are widely used in process systems on both sides of the boiler, such as smoke dampers at the inlet and outlet of boiler air preheaters, and primary hot and cold air adjustment dampers at the inlet of coal mills. The actuator is configured in two types according to the process requirements: the regulating type and the shutoff type. The switch type receives remote pulse on and off command control. The control part is composed of a power board, a control board, an IGBT module, etc. The IGBT realizes the forward and reverse switching control of the motor. Due to the high failure rate and frequent damage of the power board, nearly 30-40 power boards need to be replaced each year, and the maintenance volume is very large, which seriously affects the safe operation of the unit. The funds required for purchasing spare parts are about 300,000-400,000, which greatly wastes a lot of financial resources; the power board, the control board, and the IGBT module are eliminated by design, and the AC contactor is used to realize the forward and reverse switching control of the motor; the signal gear unit is transformed to detect the limit state of the actuator switch, and the passive dry contact signal is connected to the control unit as the locking and state feedback of the actuator switch control. When the actuator reaches the open and closed position, the power supply is automatically cut off; a thermal relay is configured in the motor power circuit to protect the motor and prevent the motor from overcurrent burning. Therefore, a device for improving the control technology of SIPOS 5 actuators is designed, which is urgently needed for the current field of SIPOS 5 actuator control technology. Summary of the invention

[0003] The present invention provides a device for improving the control technology of a SIPOS 5 actuator to solve the problems existing in the prior art.

[0004] In order to achieve the above purpose, the embodiment of the present invention provides the following technical solutions:

[0005] According to an embodiment of the present invention, a device for improving the control technology of SIPOS 5 actuators includes a transformer, a motor and a signal gear unit, wherein the transformer branch has multiple branches, one branch of the transformer branch is electrically connected to an overcurrent protector, an extended contact of the overcurrent protector is electrically connected to a first remote local switching relay, two groups of buttons are arranged between the overcurrent protector and the first remote local switching relay, multiple branches are branched between the two groups of buttons, a branch between the two groups of buttons is electrically connected to a remote DCS operation instruction, and a remote DCS operation instruction branch is arranged. A first remote local switching relay, a branch between the two groups of buttons is electrically connected to a second remote local switching relay, and a button is arranged on the branch of the second remote local switching relay, the second remote local switching relay is electrically connected to a second actuator switch state feedback intermediate relay, and the second actuator switch state feedback intermediate relay is electrically connected to a first contactor and a second contactor in sequence, a branch between the two groups of buttons is electrically connected to a remote DCS operation instruction and a second remote local switching relay in sequence, the first remote local switching relay is electrically connected to a first actuator switch state feedback intermediate relay, and the first actuator switch state feedback intermediate relay is electrically connected to a second contactor and a first contactor in sequence, a branch of the transformer branch is electrically connected to a remote local switching switch, and the branch located on the switching switch is electrically connected to the first remote local switching relay and the second remote local switching relay, a branch of the transformer branch is electrically connected to an overcurrent protector, and the motor is connected to the overcurrent protector through three groups of electrical branches, The overcurrent protector is connected to the circuit breaker through three electrical branches, and multiple branches between the circuit breaker and the overcurrent protector are respectively provided with a first contactor and a second contactor, a motor is fixedly installed on the signal gear unit, and the output end of the motor is rotatably connected to the output shaft through a gear, and a feedback device base is fixedly installed on the output shaft, and a first cam and a second cam are respectively fixedly installed on the feedback device base through locking nuts, and a micro-type terminal switch is fixedly installed on the lower part of the output shaft on the signal gear unit through a mounting bracket, and two groups of micro-type terminal switches are provided.

[0006] Furthermore, one branch of the transformer branch is electrically connected to a first limit switch, and an indicator light is provided on the branch of the first limit switch.

[0007] Furthermore, one branch of the transformer branch is electrically connected to a second limit switch, and an indicator light is provided on the branch located on the second limit switch.

[0008] Furthermore, the signal gear unit is integrally installed inside the original 2SY5225 type protective cover.

[0009] Furthermore, the first remote local switching relay, the first actuator switch state feedback intermediate relay, the second actuator switch state feedback intermediate relay and the second remote local switching relay all use relays of model LY2N-J.

[0010] The present invention has the following advantages:

[0011] 1. The device with improved control technology of SIPOS 5 actuators configures an overcurrent protection relay in the motor power circuit to protect the motor, effectively preventing the motor from burning due to overcurrent, greatly improving the working stability of the motor. At the same time, by modifying the signal gear unit, the switch limit state of the actuator is detected, and the passive dry contact signal is connected to the control unit as the locking and state feedback of the actuator switch control, which effectively improves the use efficiency of the signal gear unit;

[0012] 2. The device improved by the SIPOS 5 actuator control technology simplifies the control unit as a whole, making the overall structure of the device simpler, especially suitable for working under harsh environmental conditions, effectively reducing maintenance costs, eliminating the need to purchase expensive electronic panels, and the control accuracy fully meets the needs of the production site, and can effectively save procurement costs, while improving the stability of the actuator and reducing the maintenance workload of maintenance personnel. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] In order to more clearly illustrate the implementation methods of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for the implementation methods or the description of the prior art. Obviously, the drawings in the following description are only exemplary, and for ordinary technicians in this field, other implementation drawings can be derived from the provided drawings without creative work.

[0014] The structures, proportions, sizes, etc. illustrated in this specification are only used to match the contents disclosed in the specification so as to facilitate understanding and reading by persons familiar with the technology. They are not used to limit the conditions under which the present invention can be implemented, and therefore have no substantial technical significance. Any structural modification, change in proportion or adjustment of size shall still fall within the scope of the technical contents disclosed in the present invention without affecting the effects and purposes that can be achieved by the present invention.

[0015] Figure 1 It is a schematic diagram of the electrical principle of the present invention;

[0016] Figure 2 It is a schematic diagram of the motor connection circuit of the present invention;

[0017] Figure 3 It is a schematic diagram of the overall cross-sectional structure of the signal gear unit of the present invention;

[0018] Figure 4 It is a schematic diagram of the side view structure of the first cam in the feedback mechanism of the present invention;

[0019] Figure 5 It is a schematic diagram of the side structure of the second cam in the feedback mechanism of the present invention;

[0020] In the figure: 1. transformer; 2. circuit breaker; 3. first contactor; 4. overcurrent protector; 5. second contactor; 6. motor; 7. button; 8. first remote local switching relay; 9. first actuator switch state feedback intermediate relay; 10. remote DCS operation instruction; 11. second actuator switch state feedback intermediate relay; 12. second remote local switching relay; 13. first limit switch; 14. second limit switch; 15. switching switch; 16. indicator light; 17. output shaft; 18. feedback device base; 19. first cam; 20. second cam; 21. micro terminal switch; 22. signal gear unit. DETAILED DESCRIPTION

[0021] The following is a description of the implementation of the present invention by specific embodiments. People familiar with the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0022] The terms such as "upper", "lower", "left", "right", "middle", etc. cited in this specification are only for the convenience of description and are not intended to limit the scope of implementation of the present invention. Changes or adjustments to their relative relationships should be regarded as within the scope of implementation of the present invention without substantially changing the technical content.

[0023] The present invention provides a technical solution:

[0024] like Figure 1 - Figure 5As shown, a device for improving SIPOS 5 actuator control technology includes a transformer 1, a motor 6 and a signal gear unit 22. The transformer 1 has multiple branches. One branch of the transformer 1 is electrically connected to an overcurrent protector 4. The extended contact of the overcurrent protector 4 is electrically connected to a first remote local switching relay 8. Two groups of buttons 7 are arranged between the overcurrent protector 4 and the first remote local switching relay 8. The buttons 7 include SB1 and SB2, but do not include SF1. Multiple branches are arranged between the two groups of buttons 7. A branch between the two groups of buttons 7 is electrically connected to a remote DCS operation instruction 10, and the first remote local switching relay 8 is arranged on the branch of the remote DCS operation instruction 10. The two groups of buttons 7 are connected to each other. A branch between the two groups of buttons 7 is electrically connected with a second remote local switching relay 12, and a button 7 is arranged on the branch of the second remote local switching relay 12, the second remote local switching relay 12 is electrically connected with a second actuator switch state feedback intermediate relay 11, and the second actuator switch state feedback intermediate relay 11 is electrically connected with the first contactor 3 and the second contactor 5 in sequence, a branch between the two groups of buttons 7 is electrically connected with a remote DCS operation instruction 10 and a second remote local switching relay 12 in sequence, the first remote local switching relay 8 is electrically connected with the first actuator switch state feedback intermediate relay 9, the first actuator switch state feedback intermediate relay 11 is electrically connected with the first actuator switch state feedback intermediate relay 11, and the first actuator switch state feedback intermediate relay 11 is electrically connected with the first actuator switch state feedback intermediate relay 11, and the first actuator switch state feedback intermediate relay 11 is electrically connected with the first actuator switch state feedback intermediate relay 11, and the first actuator switch state feedback intermediate relay 11 is electrically connected with the first actuator switch state feedback intermediate relay 11, and the first actuator switch state feedback intermediate relay 11 is electrically connected with the first actuator switch state feedback intermediate relay 11, and the second ... second actuator switch state feedback intermediate relay 11, and the second actuator switch state feedback intermediate relay 11 is electrically connected with the second remote local switching relay 12, and the second remote local switching relay 12 is electrically connected with the second remote local switching relay 12, and the second remote local switching relay 12 is electrically connected with the second remote local switching relay The intermediate relay 9 is electrically connected to the second contactor 5 and the first contactor 3 in sequence, one branch of the transformer 1 is electrically connected to the remote local switching switch 15, and the branch located on the switching switch 15 is electrically connected to the first remote local switching relay 8 and the second remote local switching relay 12 respectively, one branch of the transformer 1 is electrically connected to the overcurrent protector 4, the motor 6 is connected to the overcurrent protector 4 through three groups of electrical branches, the overcurrent protector 4 is connected to the circuit breaker 2 through three electrical branches, and multiple branches between the circuit breaker 2 and the overcurrent protector 4 are respectively provided with the first contactor 3 and the second contactor 5, and its electrical working principle is that when the switching switch 15 is in the remote position, the first remote The local switching relay 8 and the second remote local switching relay 12 are demagnetized, the first remote local switching relay 8 and the second remote local switching relay 12 are closed, and the remote control opening command contact from the remote DCS operation command 10 is closed, driving the second contactor 5 to be energized, and the motor 6 rotates to drive the valve to move in the opening direction. When the valve is fully opened, the first limit switch 13 is closed, and the intermediate relay 9 of the first actuator switch state feedback is energized, the normally closed contact is disconnected, the second contactor 5 is demagnetized and reset, and the normally open contact is closed, and the in-position state is sent to the remote DCS operation command 10 to complete the door opening control. The door closing control is the same as the door opening control, but the motor 6 rotates in the opposite direction. When the switching switch 15 is in the local position,The first remote local switching relay 8 and the second remote local switching relay 12 are energized, the normally open contacts of the first remote local switching relay 8 and the second remote local switching relay 12 are closed, and the control circuit is switched to local control. The switch control principle is the same as above. When the motor 6 is rotating, if the valve is stuck, the three-term unbalance of the coil of the motor 6, the coil of the motor 6 is short-circuited, etc., the overcurrent protection relay of the motor 6 is actuated to cut off the power supply. The motor 6 is fixedly installed on the signal gear unit 22, and the output end of the motor 6 is connected to the output shaft 17 through a gear rotation. The output shaft 17 is fixedly installed with a feedback device base 18, and the feedback device base 18 is respectively fixedly installed with a first cam 19 and a second cam 20 through a locking nut. The signal gear unit 22 is located at the lower part of the output shaft 17 and is fixedly installed with a micro-type terminal switch 21 through a mounting bracket, and the micro-type terminal switch The switch 21 is provided with two groups. By modifying the signal gear unit 22, the limit state of the actuator switch is detected, and the passive dry contact signal is connected to the control unit as the locking and state feedback of the actuator switch control, which effectively improves the use efficiency of the signal gear unit 22. Its working principle is that when the motor 6 rotates, the first cam 19 and the second cam 20 rotate together with the output shaft 17 and the feedback device base 18. When the second cam 20 touches the micro-type terminal switch 21, the switch contact is closed, cutting off the power circuit, and at the same time, the local indicator light 16 and the remote DCS operation instruction 10 are opened or closed to the limit position, so that the remote DCS operation instruction 10 is braked and an operation control is completed. Similarly, when the remote DCS operation instruction 10 moves in the opposite direction, the first cam 19 and the second cam 20 rotate in the opposite direction together, and the first cam 19 touches the micro-type terminal switch 21 to complete an operation control.

[0025] In the present invention: a branch of the transformer 1 is electrically connected to the first limit switch 13, and an indicator light 16 is provided on the branch of the first limit switch 13. The working status of the first limit switch 13 can be intuitively observed through the provided indicator light 16, thereby improving the overall convenience of the device.

[0026] In the present invention: a branch of the transformer 1 is electrically connected to the second limit switch 14, and an indicator light 16 is provided on the branch of the second limit switch 14. The working status of the second limit switch 14 can be intuitively observed through the provided indicator light 16, thereby improving the overall convenience of the device.

[0027] In the present invention, the signal gear unit 22 is integrally installed inside the original 2SY5225 type protective cover. By integrally installing the signal gear unit 22 inside the original 2SY5225 type protective cover, the protection of the components of the signal gear unit 22 is effectively improved.

[0028] In the present invention: the first remote local switching relay 8, the first actuator switch state feedback intermediate relay 9, the second actuator switch state feedback intermediate relay 11 and the second remote local switching relay 12 all use relays of model LY2N-J. By using relays of model LY2N-J, the performance of the relays can be effectively improved.

[0029] Although the present invention has been described in detail above by general description and specific embodiments, it is obvious to those skilled in the art that some modifications or improvements can be made to the present invention. Therefore, these modifications or improvements made without departing from the spirit of the present invention all belong to the scope of protection claimed by the present invention.

Claims

1. A device for improving SIPOS 5 actuator control technology, comprising a transformer (1), a motor (6) and a signal gear unit (22), characterized in that: The transformer (1) has a plurality of branches, one of the branches of the transformer (1) is electrically connected to an overcurrent protector (4), an extended contact of the overcurrent protector (4) is electrically connected to a first remote local switching relay (8), two groups of buttons (7) are arranged between the overcurrent protector (4) and the first remote local switching relay (8), a plurality of branches are branched between the two groups of buttons (7), a remote DCS operation instruction (10) is electrically connected to one of the branches between the two groups of buttons (7), and a first remote local switching relay (8) is arranged on the branch of the remote DCS operation instruction (10), and a remote local switching relay (8) is arranged on one of the branches between the two groups of buttons (7). A second remote local switching relay (12) is electrically connected, and a button (7) is arranged on a branch of the second remote local switching relay (12); the second remote local switching relay (12) is electrically connected to a second actuator switch state feedback intermediate relay (11), and the second actuator switch state feedback intermediate relay (11) is electrically connected in sequence to a first contactor (3) and a second contactor (5); a branch between the two groups of buttons (7) is electrically connected in sequence to a remote DCS operation instruction (10) and the second remote local switching relay (12); the first remote local switching relay (8) is electrically connected to the first actuator switch A state feedback intermediate relay (9), the first actuator switch state feedback intermediate relay (9) is electrically connected to a second contactor (5) and a first contactor (3) in sequence, one branch of the transformer (1) is electrically connected to a remote local switch (15), and the branch located on the switch (15) is electrically connected to a first remote local switch relay (8) and a second remote local switch relay (12), one branch of the transformer (1) is electrically connected to an overcurrent protector (4), the motor (6) is connected to the overcurrent protector (4) through three groups of electrical branch branches, and the overcurrent protector (4) is connected to a circuit breaker ( 2), a plurality of branches are branched between the circuit breaker (2) and the overcurrent protector (4), each of which is provided with a first contactor (3) and a second contactor (5), a motor (6) is fixedly mounted on the signal gear unit (22), an output end of the motor (6) is rotatably connected to an output shaft (17) via a gear, a feedback device base (18) is fixedly mounted on the output shaft (17), a first cam (19) and a second cam (20) are fixedly mounted on the feedback device base (18) via locking nuts, a micro-motion terminal switch (21) is fixedly mounted on the lower part of the output shaft (17) on the signal gear unit (22) via a mounting bracket, and two groups of micro-motion terminal switches (21) are provided; A branch of the transformer (1) is electrically connected to a first limit switch (13), and an indicator light (16) is provided on the branch of the first limit switch (13); One branch of the transformer (1) is electrically connected to a second limit switch (14), and an indicator light (16) is provided on the branch of the second limit switch (14).

2. The device for improving the control technology of SIPOS 5 actuator according to claim 1, characterized in that: The signal gear unit (22) is integrally mounted inside the original 2SY5225 type protective cover.

3. The device for improving the control technology of SIPOS 5 actuator according to claim 1, characterized in that: The first remote local switching relay (8), the first actuator switch state feedback intermediate relay (9), the second actuator switch state feedback intermediate relay (11) and the second remote local switching relay (12) are all relays of model LY2N-J.

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