Equipment control system in anti-explosion area and ship

Abstract

The utility model discloses an equipment control system in an explosion-proof area and a ship. The system comprises a non-explosion-proof equipment change-over switch, a driving loop and an electronic switch, the electronic switch is connected in series in an electric loop of non-explosion-proof equipment in an explosion-proof area; the output end of the driving loop is connected to the electronic switch and is used for driving the electronic switch to be switched off and switched on; and the output end of the non-explosion-proof equipment change-over switch is connected to the driving loop and is used for controlling the driving loop to output a control signal to the electronic switch. Compared with the prior art, the device has the advantages that power-off control over non-explosion-proof equipment in an explosion-proof area is conducted in a manual one-key or automatic mode, control is simple, reliable and rapid, compared with manual control, control is reliable, original electrical connection can be rapidly recovered when recovery is needed, and reliable operation of a ship during floating oil recovery is achieved.

Description

Technical Field

[0001] The utility model relates to the field of safety control of non-explosion-proof equipment in explosion-proof areas, and particularly relates to an equipment control system and a ship in an explosion-proof area. Background Art

[0002] In rivers, lakes and seas, when an oil tanker leaks and there is floating oil on the water surface, the floating oil will bring disasters to the environment and ecology. Therefore, it is necessary to recover the floating oil. The recovery of floating oil in the prior art is generally realized by a floating oil recovery ship. For example, a water surface floating oil recovery ship with a patent application number of 202011546238.6 includes a ship body, a recovery system and an oil absorption system. Specifically, the oil absorption system includes a first arm, a second arm, a lifting frame, an oil absorption cotton column, a squeezing collar, a transverse movement mechanism, a collection tank and a lifting and lowering mechanism. This water surface floating oil recovery ship has strong maneuverability and realizes the efficient and continuous recovery of water surface floating oil, achieving the recovery of floating oil.

[0003] When the floating oil recovery ship is recovering floating oil, the ship will switch to the floating oil recovery (ORO) mode. In this mode, almost the entire ship will be in the explosion-proof area, which results in a large number of non-explosion-proof equipment being in the explosion-proof area in the normal mode. According to the explosion-proof requirements, all the live signals of these non-explosion-proof equipment need to be cut off. Traditionally, manual wire disconnection is used, which is very cumbersome and easy to miss, causing danger; because the workload of wire disconnection and connection is huge and there are many lines, this large amount of wire disconnection and connection is also extremely prone to errors, resulting in system failure, and even causing explosion or fire, seriously endangering the safety of life and property. Summary of the Utility Model

[0004] The purpose of the utility model is to overcome the deficiencies of the prior art and provide an equipment control system and a ship in an explosion-proof area, which solve the defects of manual cutting in the prior art by quickly and automatically cutting off the power supply of non-explosion-proof equipment.

[0005] To achieve the above purpose, the technical solution adopted by the utility model is: an equipment control system in an explosion-proof area, including a non-explosion-proof equipment changeover switch, a drive circuit and an electronic switch; the electronic switch is connected in series in the electrical circuit of non-explosion-proof equipment in the explosion-proof area; the output end of the drive circuit is connected to the electronic switch for driving the opening and closing of the electronic switch; the output end of the non-explosion-proof equipment changeover switch is connected to the drive circuit for controlling the drive circuit to output a control signal to the electronic switch.

[0006] The electronic switch includes a relay; the control end of the relay is connected to the drive circuit, and the switch contacts of the relay are connected in series in the electrical circuit of non-explosion-proof equipment in the explosion-proof area.

[0007] The driving circuit includes a low-voltage power supply, which is connected to the control terminal of the relay through a non-explosion-proof equipment changeover switch.

[0008] The driving circuit further includes a driving controller and a status detection module; the status detection module is used to detect an explosion-proof status start signal, and its output terminal is connected to the driving controller, and the output terminal of the driving controller is connected to an electronic switch.

[0009] The status detection module includes an oil spill recovery mode detection unit for detecting whether the ship is in the oil spill recovery mode.

[0010] There are multiple electronic switches, and the number thereof corresponds to the number of non-explosion-proof equipment in the explosion-proof area.

[0011] The control system further includes an indicator light, and the output terminal of the driving controller is connected to the indicator light.

[0012] An oil spill recovery ship is provided with the equipment control system in the explosion-proof area therein.

[0013] The advantages of the present utility model are as follows: the power-off control of non-explosion-proof equipment in the explosion-proof area is carried out manually by one key or automatically, the control is simple, reliable and fast. Compared with manual control, the control is reliable and the original electrical connection can be quickly restored when needed, realizing the reliable operation of the ship during oil spill recovery. Brief Description of the Drawings

[0014] The following briefly describes the content expressed in each drawing of the present invention specification and the marks in the drawings:

[0015] Figure 1 It is the electrical control schematic diagram of the control system of the present utility model;

[0016] Figure 2 It is the schematic diagram between the explosion-proof area and the non-explosion-proof area of the present utility model. Detailed Embodiment

[0017] The following further details the specific embodiments of the present invention by describing the optimal embodiments with reference to the drawings.

[0018] The oil spill recovery ship is used to process the oil spill on the water surface, and it has two modes: normal mode and oil spill recovery (ORO) mode. After switching to the oil spill recovery mode, most parts of the ship are explosion-proof areas. In the explosion-proof area, non-explosion-proof equipment needs to be disconnected from work to prohibit the transmission of electrical signals to ensure safety. The prior art method of manually removing the power supply cable is too complicated and cannot meet the requirements of fast and reliable operation. Therefore, in this solution, a relay is added to quickly disconnect the power supply circuit of non-explosion-proof equipment to improve safety. The specific solution is as follows:

[0019] As Figure 1 , 2 shown, for a device control system in the explosion-proof area of a ship, when the ship is in the ORO mode, it can be divided into an explosion-proof area and a non-explosion-proof area. The devices in the vehicle can be classified according to the explosion-proof level to determine whether they are explosion-proof devices or non-explosion-proof devices. Non-explosion-proof devices include, but are not limited to, various non-explosion-proof motors, various non-explosion-proof sensors, various non-explosion-proof remote control valves, etc. The control system includes a non-explosion-proof device changeover switch, a drive circuit, and an electronic switch;

[0020] The number of electronic switches is one or more, which is determined according to the data of the non-explosion-proof devices in the explosion-proof area. The electronic switches are connected in series in the electrical circuits of the non-explosion-proof devices in the explosion-proof area. Here, the electrical circuits include an electrical signal output circuit, a power supply circuit, etc. The power supply circuit refers to the connection circuit between the device and the power supply; An electronic switch is set to control the disconnection or connection of the electrical circuit. In the ORO mode, the electrical circuit of the non-explosion-proof devices in the explosion-proof area can be disconnected through the electronic switch, so as to ensure the electrical safety of the ship in the ORO mode.

[0021] The output end of the drive circuit is connected to the electronic switch, which is used to drive the disconnection and closing of the electronic switch. The drive circuit provides drive control for the electronic switch, and the electronic switch acts according to the control signal sent by the drive circuit; The output end of the non-explosion-proof device changeover switch is connected to the drive circuit, which is used to control the drive circuit to output a control signal to the electronic switch. In the ORO mode, the electrical circuit of the non-explosion-proof devices in the explosion-proof area is disconnected by manually switching the non-explosion-proof device changeover switch to control the drive circuit and then the electronic switch; After returning from the ORO mode to the normal mode, the electrical circuit of the non-explosion-proof devices in the explosion-proof area is connected by controlling the drive circuit through the non-explosion-proof device changeover switch and then the electronic switch.

[0022] In a preferred embodiment of the present application, the electronic switch is implemented by a relay. The electrical circuit of the non-explosion-proof devices in the explosion-proof area is disconnected by controlling the strong electricity with weak electricity. That is, the number of relays is determined according to the number of non-explosion-proof devices in the explosion-proof area, and then the switch contacts of the relays are connected in series between the electrical circuits of the non-explosion-proof devices in the explosion-proof area. In this way, by driving the power loss and power gain of the relays, the disconnection and closing of the corresponding contact switches can be controlled, and then the on-off of the electrical circuits of the non-explosion-proof devices in the explosion-proof area can be controlled, so as to meet the requirements.

[0023] The power-off and power-on of the relay are controlled through the drive circuit. The off control can be achieved by a manual one-key control method. Under the manual control scheme, the drive circuit includes a low-voltage power supply, which provides the basis for the operation of the relay; the low-voltage power supply is connected to the control terminal of the relay through a non-explosion-proof equipment changeover switch. The control terminal of the relay is the relay coil, and the power-off and power-on of the relay are controlled by the opening and closing of the non-explosion-proof equipment changeover switch, thereby controlling the opening and closing of the contact switch of the relay. Here, the non-explosion-proof equipment changeover switch is a manual mechanical switch, such as a knife switch. When the ship enters the ORO mode from the normal mode, the power-on or power-off of the corresponding relay is controlled by the knife switch, so as to control the opening of the contact switch. After the contact switch is opened, the non-explosion-proof equipment corresponding to the circuit where the contact switch is located will be powered off, thus ensuring the safety of the electrical system. Since the relay has two types of contact switches, normally open contacts and normally closed contacts, the corresponding contact switch can be set according to actual needs to achieve the function.

[0024] In another preferred embodiment of the present application, a push-button switch is used for one-key power-off control. The scheme is as follows: the drive circuit includes a drive controller, which is used to output high voltage to drive the power-off and power-on of the relay; the non-explosion-proof equipment changeover switch is connected to the drive controller, and the drive controller drives and controls the operation of the relay according to the signal of the non-explosion-proof equipment changeover switch; among them, the non-explosion-proof equipment changeover switch can be implemented by an electronic switch such as a button, a key, or a touch switch. When powering off the non-explosion-proof equipment in the explosion-proof area, after the signal is input through the non-explosion-proof equipment changeover switch and received by the drive controller, the drive controller drives the relay to act to disconnect its corresponding contact switch, thereby completing the power-off of the electrical circuit of the non-explosion-proof equipment; conversely, when recovery is required, by receiving the signal of the non-explosion-proof equipment changeover switch, the drive controller can drive the relay to perform corresponding actions to realize the power-on and power-off recovery of the non-explosion-proof equipment.

[0025] In a preferred embodiment of the present embodiment, in order to automatically detect that the ship is in the ORO mode and automatically disconnect the electrical circuit of non-explosion-proof equipment, a status detection module is provided. The status detection module is used to detect the explosion-proof status start signal, and its output terminal is connected to the drive controller. The output terminal of the drive controller is connected to the electronic switch. The status detection module includes an oil spill recovery mode detection unit for detecting whether the ship is in the oil spill recovery mode. Since the status of the oil spill recovery ship will be stored in the main control system of the ship when it switches to the ORO mode, the detection unit can directly read the corresponding status signal or add a sensor to obtain the operating status of the oil spill recovery mechanism of the ship. For example, for a rotary belt inclined plate type oil spill recovery ship, it is possible to know whether it is in the ORO mode at this time by adding a sensor to detect the working status of the rotary inclined belt device. When it is detected that the ship is in the ORO mode, the drive controller can drive the relay to work to cut off the power. Since the oil spill recovery generally starts when approaching this state, automatic control can achieve automatically disconnecting the relay switch when starting, and can timely cut off the electrical circuit of non-explosion-proof equipment when entering the ORO mode.

[0026] In a preferred solution of the present embodiment, the control system further includes an indicator light. The output terminal of the drive controller is connected to the indicator light, which is used to display the disconnection status at this time through the indicator light, so as to facilitate the user to check in time.

[0027] The present embodiment also provides an oil spill recovery ship. Since the equipment control system in the explosion-proof area in the above embodiment is provided in the ship, it also has the characteristic of quickly and timely cutting off the electrical circuit of non-explosion-proof equipment in the explosion-proof area after entering the ORO mode, and has the advantages of safety, reliability, and timely cutting off the electrical circuit of non-explosion-proof equipment in the explosion-proof area.

[0028] As Figure 2 shown, the control system in the present embodiment is integrated in the control box, and the control box is arranged in the non-explosion-proof area, so as to realize the reliable operation of the control system and not affect the safety of oil spill recovery. A non-explosion-proof equipment cut-off switch and an indicator light are arranged on the control box body; the drive controller, power supply, relay, etc. are all arranged in the control box. The connection terminals of the contact switch are led out from the control box and connected to the electrical circuits of each explosion-proof area in the explosion-proof area through wires. The control function can be realized by setting the contact switch in series in the electrical circuit; at the same time, the status detection module should be set as an explosion-proof sensor to collect the ORO status signal in the explosion-proof area and connect it to the inside of the control box through wires, so that the control of the disconnection electrical signal of non-explosion-proof equipment in the explosion-proof area of the oil spill recovery ship in the ORO mode can be realized. A simple and fast device enables the multi-functional offshore engineering ship (PSV) to freely switch between the normal mode and the ORO mode to meet the use requirements.

[0029] This device is equipped with a non-explosion-proof equipment cut-off switch controlled by several relays, and the number of corresponding relays can be determined according to the complexity of the system. Just insert several relays into the standard slots, which is extremely convenient and simple. The principle of this device is mainly to connect the relay contacts in series to the electrical signal transmission circuit of the non-explosion-proof equipment that needs to be disconnected through the built-in relays, so that the connection and disconnection control of the electrical signals of the non-explosion-proof equipment can be achieved through the energization and de-energization of the relays. According to the illustration Figure 1 , 2 As can be seen, the operation of this set of devices is extremely simple. Just rotate the switch to different positions. It is only necessary to mark 1, normal mode; 2, ORO mode on the switch nameplate of the box body, which is clear at a glance for the operator. Or adopt the automatic control method, and the drive control work can be completed without manual operation.

[0030] Compared with the traditional solution mode, when it is necessary to cut off the electrical signals of non-explosion-proof equipment in the explosion-proof area under a specific mode, we need to check the entire system, remove the cables of various electrical signals, and seal them with insulating tape. There are certain safety risks, it takes a lot of operation time, and it is very easy to miss. After the mode is changed, it is necessary to reset again, and the above work needs to be done again, with a large workload. However, for this device, just rotating a button can achieve the purpose of cutting off, saving a lot of time, without having to check the circuit, disconnect the wires, etc., and there will be no omission, which is safe, convenient and reliable.

[0031] Obviously, the specific implementation of the present invention is not limited by the above methods. As long as various non-substantive improvements are made by adopting the method concept and technical solution of the present invention, they are all within the protection scope of the present invention.

Claims

1. An equipment control system in an explosion-proof area, characterized in that: It includes a non-explosion-proof equipment changeover switch, a drive circuit, and an electronic switch; the electronic switch is connected in series in the electrical circuit of non-explosion-proof equipment in the explosion-proof area; the output end of the drive circuit is connected to the electronic switch for driving the opening and closing of the electronic switch; the output end of the non-explosion-proof equipment changeover switch is connected to the drive circuit for controlling the drive circuit to output a control signal to the electronic switch.

2. The equipment control system within an explosion-proof area as described in claim 1, characterized in that: The electronic switch includes a relay; the control end of the relay is connected to the drive circuit, and the switch contacts of the relay are connected in series in the electrical circuit of non-explosion-proof equipment in the explosion-proof area.

3. The equipment control system in an explosion-proof area according to claim 1 or 2, characterized in that: The drive circuit includes a low-voltage power supply, and the low-voltage power supply is connected to the control end of the relay through the non-explosion-proof equipment changeover switch.

4. The equipment control system in an explosion-proof area according to claim 1 or 2, characterized in that: The drive circuit further includes a drive controller and a status detection module; the status detection module is used to detect the explosion-proof status start signal, its output end is connected to the drive controller, and the output end of the drive controller is connected to the electronic switch.

5. The equipment control system within an explosion-proof area as described in claim 4, characterized in that: The status detection module includes an oil spill recovery mode detection unit for detecting whether the ship is in the oil spill recovery mode.

6. The equipment control system in an explosion-proof area according to claim 1 or 2, characterized in that: There are multiple electronic switches, and the number thereof corresponds to the number of non-explosion-proof equipment in the explosion-proof area.

7. The equipment control system within an explosion-proof area according to claim 4, wherein: The control system further includes an indicator light, and the output end of the drive controller is connected to the indicator light.

8. A ship, characterized in that: The ship is provided with a control system for equipment in the explosion-proof area as described in any one of claims 1-7.

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