Misoperation protection device applied to brake of pumping unit and use method thereof

Abstract

The present application relates to pumping unit control technical field, it is a kind of misoperation protection device and use method applied to pumping unit brake, the former includes brake trigger component, control transmission module, feedback control circuit;Brake trigger component is set in pumping unit brake, collects pumping unit brake state;Control transmission module is set in pumping unit electric control box, combines the feedback signal of brake trigger component control feedback control circuit, and transmits pumping unit front-end information to remote monitoring platform;Feedback control circuit controls pumping unit start or stop according to the control signal output by control transmission module.In the present application, control transmission module combines the feedback signal of brake trigger component to automatically judge whether brake state has start-stop condition, and corresponding pumping unit start or stop operation is executed by feedback control circuit, avoid the problem that the original manual direct control pumping unit start-stop is easy to produce misoperation, can effectively assist staff to improve the safety and reliability of pumping unit start-stop operation.

Description

Technical Field

[0001] This invention relates to the field of oil pumping unit control technology, and is a misoperation protection device and its usage method applied to the brakes of oil pumping units. Background Technology

[0002] The pumping unit brake is a critical device frequently used in various maintenance and production operations. Currently, beam pumping units generally use manual brakes. During start-up and shutdown operations, the brake and electrical control box must work together to complete the process. However, in practice, operators may accidentally start the pumping unit without fully releasing the brake, or fail to press the stop button in time after tightening the brake. This can cause damage to the pumping unit equipment and lead to unsafe actions due to panic. Some beam pumping units are equipped with electrical control boxes with automatic start-stop control functions. In the event of a power outage and pumping stoppage, the status of the pumping unit's braking system (whether it is tightened or loosened) cannot be monitored in real time during the power restoration process. Therefore, on-site personnel are required to verify the status and prevent equipment accidents. Furthermore, since there is currently no technology or method for real-time control and feedback of the braking system status of pumping units that use manual brakes on the production site, pumping units with automatic start-stop functions cannot determine whether the start-stop requirements have been met. Therefore, at the current stage of promoting and applying the Internet of Things, remote monitoring platforms also lack real-time monitoring and feedback information on the braking status of pumping units.

[0003] Currently, the method for dealing with brake misoperation of pumping units on the production site is to strengthen personnel training and safety awareness, as well as pre-operation risk identification, in order to reduce brake misoperation during pumping unit start-up and shutdown. The disadvantage of this method is that the emotional state of personnel is uncertain, and their abilities and safety awareness vary, so it cannot fundamentally eliminate the possibility of brake misoperation. Summary of the Invention

[0004] This invention provides a device and method for protecting against misoperation of the brakes in oil pumping units, which overcomes the shortcomings of the prior art and can effectively solve the problems of easy error and high uncertainty in existing manual methods for reducing brake misoperation.

[0005] One of the technical solutions of the present invention is achieved through the following measures: a misoperation protection device for pumping unit brakes, comprising a brake triggering component, a control transmission module, a feedback control circuit, an alarm component, and a remote monitoring platform; The brake triggering component is located at the pumping unit brake to collect the pumping unit brake status. The control and transmission module is located in the pumping unit's electrical control box. It controls the feedback control circuit in conjunction with the feedback signal from the brake triggering component and transmits pumping unit front-end information to the remote monitoring platform. The pumping unit front-end information includes the pumping unit's operating status and the position status of the pumping unit's brake. The feedback control circuit controls the pumping unit to start or stop based on the control signal output by the control transmission module, and controls the brake alarm component to complete the operation alarm. The remote monitoring platform displays information from the front end of the oil pumping unit.

[0006] The following are further optimizations and / or improvements to the above-mentioned technical solution: The aforementioned feedback control circuit includes a relay and an AC contactor. The control transmission module is connected to the relay coil and the brake triggering component, respectively. The first normally open contact of the relay is connected to the remote monitoring platform, the second normally open contact of the relay is connected to the AC contactor coil, the normally open contact of the AC contactor is connected to the pumping unit, and the normally closed contact of the relay is connected to the alarm component.

[0007] The aforementioned control transmission module includes a remote terminal unit; the remote terminal unit is connected to both the brake trigger component and the relay coil, and the remote terminal unit controls whether the relay coil is energized based on the feedback signal from the brake trigger component.

[0008] The aforementioned brake triggering component is at least one position switch.

[0009] The aforementioned alarm component is an audible and visual alarm.

[0010] The second technical solution of the present invention is achieved through the following measures: a method of using the above-mentioned misoperation protection device applied to the brake of an oil pumping unit, comprising: When the pumping unit is stopped: 1. If the brake triggering component senses that the pumping unit brake has been released, it sends a feedback signal "1" to the control transmission module. The control transmission module controls the feedback control circuit to execute the pumping unit start-up operation, and the pumping unit starts and runs normally. It also controls the transmission of pumping unit front-end information to the remote monitoring platform. 2. If the brake triggering component senses that the pumping unit brake is not fully released, and a misoperation occurs in starting the pumping unit, the brake triggering component sends a feedback signal "0" to the control transmission module. The control transmission module controls the feedback control circuit to execute the pumping unit stop operation. The pumping unit cannot be started, the alarm component issues an alarm prompt, and controls the transmission of pumping unit front-end information to the remote monitoring platform. When the pumping unit is in operation: 1. If the brake triggering component senses that the pumping unit brake is in the applied brake state, it sends a feedback signal "0" to the control transmission module. The control transmission module controls the feedback control circuit to execute the pumping unit stop operation. The pumping unit stops running, the alarm component issues an alarm prompt, and controls the transmission of pumping unit front-end information to the remote monitoring platform. 2. If an employee pulls the brake without pressing the stop button, the brake triggering component senses that the pumping unit brake has left the fully released position and sends a feedback signal "0" to the control transmission module. The control transmission module then controls the feedback control circuit to execute the pumping unit stop operation. The pumping unit stops running, the alarm component issues an alarm prompt, and the control unit transmits the pumping unit front-end information to the remote monitoring platform.

[0011] This invention directly collects the braking status of the pumping unit through a brake triggering component. The control transmission module, combined with the feedback signal from the brake triggering component, automatically determines whether the braking status meets the start-stop conditions. The feedback control circuit then executes the corresponding pumping unit start-up or stop operation, making the pumping unit operation more accurate. This avoids the problem of easy misoperation caused by manually controlling the pumping unit to start and stop, and effectively assists employees in improving the safety and reliability of pumping unit start-stop operations. Attached Figure Description

[0012] Appendix Figure 1 This is a schematic diagram of a device structure according to the present invention.

[0013] Appendix Figure 2 This is a schematic diagram of another device structure according to the present invention.

[0014] The codes in the attached diagram are as follows: KM1 is the relay coil; KM11 is the first normally open contact of the electrical appliance; KM12 is the second normally open contact of the relay; OKM is the AC contactor coil; OKM1 is the normally open contact of the AC contactor; KM13 is the normally closed contact of the relay; and BJ is the alarm component. Detailed Implementation

[0015] The present invention is not limited to the following embodiments, and specific implementation methods can be determined according to the technical solutions and actual conditions of the present invention.

[0016] The present invention will be further described below with reference to embodiments and accompanying drawings: Example 1: As shown in the attached document Figure 1 As shown, a misoperation protection device for pumping unit brakes includes a brake triggering component, a control transmission module, a feedback control circuit, an alarm component, and a remote monitoring platform. The brake triggering component is located at the pumping unit brake to collect the pumping unit brake status. The control and transmission module is located in the pumping unit's electrical control box. It controls the feedback control circuit in conjunction with the feedback signal from the brake triggering component and transmits pumping unit front-end information to the remote monitoring platform. The pumping unit front-end information includes the pumping unit's operating status and the position status of the pumping unit's brake. The feedback control circuit controls the start or stop of the pumping unit based on the control signal output by the PLC controller, and controls the brake alarm component to complete the operation alarm. The remote monitoring platform displays information from the front end of the oil pumping unit.

[0017] The aforementioned brake triggering component, control transmission module, feedback control circuit, alarm component, and remote monitoring platform are combined to achieve malfunction protection for the pumping unit brake. The brake triggering component is located at the pumping unit brake and includes at least one limit switch, position switch, or sensor to collect the pumping unit brake status and output corresponding feedback signals. The pumping unit brake status includes fully released and fully engaged states, etc. The control transmission module is located in the pumping unit electrical control box and, in conjunction with the feedback signal from the brake triggering component, controls the feedback control circuit. The feedback control circuit, based on the control signal output by the control transmission module, controls the pumping unit to start or stop and controls the brake alarm component to issue an operation alarm. Simultaneously, it controls the remote monitoring platform to display the pumping unit front-end information. Because this invention directly collects the braking status of the pumping unit through the brake triggering component, the control transmission module, in conjunction with the feedback signal from the brake triggering component, automatically determines whether the braking status meets the start-stop conditions, and the feedback control circuit executes the corresponding pumping unit start-up or stop operation, making the pumping unit operation more accurate. This avoids the problem of easy misoperation caused by manually controlling the pumping unit to start and stop, and can effectively assist employees in improving the safety and reliability of pumping unit start-up and stop operations.

[0018] Example 2: As shown in the attached document Figure 2 As shown, a misoperation protection device for pumping unit brakes includes a brake triggering component, a control transmission module, a feedback control circuit, an alarm component, and a remote monitoring platform. The brake triggering component is located at the pumping unit brake to collect the pumping unit brake status. The feedback control circuit includes relays and AC contactors. The control transmission module is located in the pumping unit's electrical control box and includes a remote terminal unit. The remote terminal unit is connected to the brake triggering component and the relay coil KM1. The first normally open contact KM11 of the relay is connected to the remote monitoring platform. The second normally open contact KM12 of the relay is connected to the AC contactor coil OKM. The normally open contact OKM1 of the AC contactor is connected to the pumping unit. The normally closed contact KM13 of the relay is connected to the alarm component BJ. The remote terminal unit controls whether the relay coil is energized based on the feedback signal from the brake triggering component. Based on the closing and opening of the second normally open contact of the relay, it controls whether the AC contactor coil is energized, thereby controlling whether the pumping unit starts. Based on the closing and opening of the first normally open contact of the relay, it controls whether to transmit pumping unit front-end information to the remote monitoring platform. The pumping unit front-end information includes the pumping unit's operating status and the position status of the pumping unit's brake. The remote monitoring platform displays information from the front end of the oil pumping unit.

[0019] The aforementioned relay controls whether the AC contactor coil OKM is energized. If the brake triggering component outputs a "1" feedback signal, the remote terminal unit controls the relay coil KM1 to be energized, the first normally open contact KM11 of the relay closes, causing the remote monitoring platform to display that the pumping unit has started, and the second normally open contact KM12 of the relay closes, energizing the AC contactor coil OKM. If the brake triggering component outputs a "0" feedback signal, the remote terminal unit controls the relay coil KM1 to be energized, the first normally open contact KM11 of the relay opens, causing the remote monitoring platform to display that the pumping unit has stopped running, and the second normally open contact KM12 of the relay opens, de-energizing the AC contactor coil OKM.

[0020] The aforementioned AC contactor controls whether the pumping unit starts. If the AC contactor coil OKM is energized, the normally open contact OKM1 of the AC contactor closes, energizing the power unit of the pumping unit and starting the pumping unit. If the AC contactor coil OKM is de-energized, the normally open contact OKM1 of the AC contactor opens, de-energizing the power unit of the pumping unit and stopping the pumping unit.

[0021] Example 3: A method of using a misoperation protection device applied to the brakes of an oil pumping unit, characterized in that it includes: When the pumping unit is stopped: 1. If the brake triggering component senses that the pumping unit brake has been released, it sends a feedback signal "1" to the control transmission module. The control transmission module controls the feedback control circuit to execute the pumping unit start-up operation, and the pumping unit starts and runs normally. It also controls the transmission of pumping unit front-end information to the remote monitoring platform. 2. If the brake triggering component senses that the pumping unit brake is not fully released, and a misoperation occurs in starting the pumping unit, the brake triggering component sends a feedback signal "0" to the control transmission module. The control transmission module controls the feedback control circuit to execute the pumping unit stop operation. The pumping unit cannot be started, the alarm component issues an alarm prompt, and controls the transmission of pumping unit front-end information to the remote monitoring platform. When the pumping unit is in operation: 1. If the brake triggering component senses that the pumping unit brake is in the applied brake state, it sends a feedback signal "0" to the control transmission module. The control transmission module controls the feedback control circuit to execute the pumping unit stop operation. The pumping unit stops running, the alarm component issues an alarm prompt, and controls the transmission of pumping unit front-end information to the remote monitoring platform. 2. If an employee pulls the brake without pressing the stop button, the brake triggering component senses that the pumping unit brake has left the fully released position and sends a feedback signal "0" to the control transmission module. The control transmission module then controls the feedback control circuit to execute the pumping unit stop operation. The pumping unit stops running, the alarm component issues an alarm prompt, and the control unit transmits the pumping unit front-end information to the remote monitoring platform.

[0022] The above technical features constitute the embodiments of the present invention, which have strong adaptability and implementation effect. Unnecessary technical features can be added or removed according to actual needs to meet the needs of different situations.

Claims

1. A misoperation protection device for a pumping unit brake, characterized in that, It includes brake triggering components, control transmission modules, feedback control circuits, alarm components, and a remote monitoring platform; The brake triggering component is located at the pumping unit brake to collect the pumping unit brake status. The control and transmission module is located in the pumping unit's electrical control box. It controls the feedback control circuit in conjunction with the feedback signal from the brake triggering component and transmits pumping unit front-end information to the remote monitoring platform. The pumping unit front-end information includes the pumping unit's operating status and the position status of the pumping unit's brake. The feedback control circuit controls the start or stop of the pumping unit according to the control signal output by the control transmission module, and controls the brake alarm component to complete the operation alarm. It includes a relay and an AC contactor. The control transmission module is connected to the relay coil and the brake trigger component respectively. The first normally open contact of the relay is connected to the remote monitoring platform, the second normally open contact of the relay is connected to the AC contactor coil, the normally open contact of the AC contactor is connected to the pumping unit, and the normally closed contact of the relay is connected to the alarm component. The remote monitoring platform displays information from the front end of the oil pumping unit; The method of using the device includes: When the pumping unit is stopped: If the brake triggering component senses that the pumping unit brake has been released, it sends a feedback signal "1" to the control transmission module. The control transmission module then controls the feedback control circuit to execute the pumping unit start-up operation. The pumping unit starts up and runs normally, and the control system transmits the pumping unit front-end information to the remote monitoring platform. If the brake triggering component senses that the pumping unit brake is not fully released, and a misoperation occurs during the start of the pumping unit, the brake triggering component sends a feedback signal "0" to the control transmission module. The control transmission module then controls the feedback control circuit to stop the pumping unit. If the pumping unit cannot start, the alarm component issues an alarm and controls the transmission of pumping unit front-end information to the remote monitoring platform. When the pumping unit is in operation: If the brake triggering component senses that the pumping unit brake is in the applied braking state, it sends a feedback signal "0" to the control transmission module. The control transmission module controls the feedback control circuit to execute the pumping unit stop operation. The pumping unit stops running, the alarm component issues an alarm prompt, and controls the transmission of pumping unit front-end information to the remote monitoring platform. If an employee pulls the brake without pressing the stop button, the brake triggering component senses that the pumping unit brake has left the fully released position and sends a feedback signal "0" to the control transmission module. The control transmission module then controls the feedback control circuit to execute the pumping unit stop operation. The pumping unit stops running, the alarm component issues an alarm prompt, and the control unit transmits the pumping unit front-end information to the remote monitoring platform.

2. The misoperation protection device for pumping unit brakes according to claim 1, characterized in that, The control transmission module includes a remote terminal unit; the remote terminal unit is connected to the brake trigger component and the relay coil respectively, and the remote terminal unit controls whether the relay coil is energized based on the feedback signal of the brake trigger component.

3. The misoperation protection device for pumping unit brakes according to claim 1 or 2, characterized in that, The brake triggering component is at least one position switch.

4. The misoperation protection device for pumping unit brakes according to claim 1 or 2, characterized in that, The alarm component is an audible and visual alarm.

5. The misoperation protection device for pumping unit brakes according to claim 3, characterized in that, The alarm component is an audible and visual alarm.

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