Automatic energy conversion device in double-gas combination form

Abstract

The utility model discloses an automatic energy conversion device in a double-gas combination mode. The automatic energy conversion device is used for conversion between energy assemblies needed by self-starting of a ship emergency generator. Starting energy sources suitable for the device are two sets of independently-started gas cylinders, namely a so-called double-gas combination. The device comprises a conversion box; first and second energy control loops; input ends of the two loops are connected with a local control box of the ship emergency generator, and output ends of the two loops are respectively connected with electromagnetic valves of two starting gas cylinders of the ship emergency generator; the two loops are further respectively connected with air pressure monitoring components used for monitoring air pressure in the two starting air cylinders, and the first energy control loop or the second energy control loop is selectively connected or disconnected based on the monitored air pressure. The utility model has the following beneficial effects: the automatic switching between two groups of starting gas cylinders serving as starting energy is realized, and the other gas cylinder is automatically selected when the selected gas cylinder cannot normally supply compressed air, so that the'dark time 'of power failure on a ship is shortened to the greatest extent, and the safety of the ship is promoted to the greatest extent.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of ship emergency generator self-starting energy conversion, and in particular to an energy automatic conversion device in double-gas combination form. BACKGROUND

[0002] The emergency generator commonly used on ships is one of the main forms of emergency power supply, and is an important measure to obtain necessary power on the ship before the ship resumes normal power supply after the main power supply on the ship is lost. The emergency generator is even related to whether the ship can resume normal power supply, and thus the importance of the emergency generator to the safety guarantee of the ship is self-evident.

[0003] Such an important emergency generator has special requirements for the starting mode of the self-starting unit in the relevant regulations, including two independent starting devices, including starting energy. The energy capacity of the first set of energy storage devices can at least support three consecutive starts, and should be protected from being depleted by the self-starting system. Unless a second independent starting device is provided, and a second energy source for three more starts within 30 minutes is also provided, unless manual starting can be proven to be effective. Through understanding of various types of ships, it is found that the energy form of the starting device of the emergency generator that meets the requirements of the regulations is commonly two groups of storage batteries (or compressed air), one group of storage batteries (or compressed air) and one mechanical starting device. The mechanical starting device includes a spring, a hydraulic energy storage device, etc.

[0004] In the above-mentioned commonly used emergency generator starting device, at least one battery (storage battery) or gas cylinder (compressed air) is used to start, so as to realize the requirement of the regulations that the emergency generator can complete self-starting and be put into the emergency power grid within the specified time (45 seconds) after the main power supply is lost. In such a self-starting device, a switch box is connected in series on the energy input line of the starting motor. The switch box controls the on-off of the starting energy input line, including the selection of the storage battery.

[0005] Practice shows that the above-mentioned emergency generator starting system that meets the requirements of the regulations, although everything is normal through regular inspection and maintenance in daily shipping of the ship, but in real cases, there have been more than once that for a specific ship sailing in a specific water area, a specific fault occurs, the emergency generator cannot be started as soon as possible (including manual starting does not work), and even so-called "tumble nest" appears, and emergency troubleshooting of possible starting problems is necessary. At this time, every minute and every second that endangers the safety of the ship is very critical. In order to solve the urgent problem, time must be saved.

[0006] And the existing emergency generator self-starting system although meets the specification rule requirement, but the switch box control mode of the starting energy supply is only local manual operation, which will have a certain delay in time (manual intervention is needed for starting) when the battery needs to be converted or switched to compressed air starting, which is a "defect" that is very obvious for the safety of the ship in critical situation. SUMMARY

[0007] In order to solve the above technical problems, the utility model provides a kind of dual-gas combination form's energy automatic conversion device suitable for ship emergency generator self-starting, energy required for ship emergency generator self-starting can be realized automatically supplied, the device includes: conversion box;First and second energy control circuits for respectively controlling the supply of two compressed air power energy are arranged in the conversion box;The input end of the first and second energy control circuits is connected with the local control box of ship emergency generator, and the output end of the first and second energy control circuits is respectively connected with the electromagnetic valve of the first and second starting gas cylinder of the ship emergency generator;The first and second energy control circuits are respectively connected with the first and second gas pressure monitoring components for monitoring the gas pressure in the first and second starting gas cylinders, and the first or second energy control circuit is selectively turned on or off based on the gas pressure monitored by the first and second gas pressure monitoring components to convert between two compressed air power energy.

[0008] The utility model has the following beneficial effects: according to the dual-gas combination form's energy automatic conversion device for ship emergency generator self-starting of the utility model, the automatic conversion between two groups of starting gas cylinders (two compressed air power energy) can be realized for starting energy, when the selected starting gas cylinder cannot normally supply compressed air, another starting gas cylinder is automatically selected, thereby the "dark time" of power failure on the ship is minimized, and the safety of the ship is maximized. Thus, the utility model has irreplaceable significance in time for ensuring the safety of the ship and restoring normal as soon as possible in very time.

[0009] Preferably, the device further comprises energy operation components respectively connected in the first and second energy control circuits to preferentially select two compressed air power energy. Thus, the utility model also has the following beneficial effects: by selecting the energy operation components, one of the first and second energy control circuits can be selected as the preferred starting energy for starting the emergency generator, and the other can be selected as the alternative starting energy for starting the emergency generator; by manually setting the preferred energy supply, the preferred starting energy can be manually rotated periodically, so that maintenance and maintenance can be optimized, and the service life can be relatively extended.

[0010] Preferably, the first and second gas pressure monitoring components are first and second gas pressure switches respectively arranged on the first and second starting gas cylinders to monitor the gas pressure in each starting gas cylinder. By means of this, the automatic switching condition can be judged by monitoring the gas pressure in the corresponding starting gas cylinder, so as to automatically switch between the first and second energy control circuits.

[0011] Preferably, the energy operating components are first and second self-resetting buttons respectively connected to the first and second energy control circuits. By means of this, the application can effectively realize the first selection of the two groups of starting energy (two routes of compressed air power energy), so as to artificially set the first energy supply, and can periodically manually rotate the setting of the first starting energy, so as to optimize the maintenance and relatively prolong the service life.

[0012] Preferably, the first and second self-resetting buttons are normally closed buttons.

[0013] Preferably, the switching box further comprises: a first contactor and a second contactor forming interlocking; the first energy control circuit comprises a first coil of the first contactor, the first self-resetting button, the first gas pressure switch, a second normally closed contact of the second contactor, a first incoming line switch, and a first normally open contact of the first contactor; one end of the first coil of the first contactor is connected to the first incoming line switch, the other end of the first coil of the first contactor, the first self-resetting button, the first gas pressure switch, and the second normally closed contact of the second contactor are connected in series, the other end of the second normally closed contact of the second contactor is connected to the first incoming line switch, and the other end of the first incoming line switch is connected to the local control box and the first normally open contact of the first contactor respectively; one end of the first normally open contact of the first contactor is connected to the local control box, and the other end of the first normally open contact of the first contactor is connected to the electromagnetic valve of the first starting gas cylinder; the second energy control circuit comprises a second coil of the second contactor, the second self-resetting button, the second gas pressure switch, the first normally closed contact of the first contactor, a second incoming line switch, and a fourth normally open contact of the second contactor; one end of the second coil of the second contactor is connected to the second incoming line switch, the other end of the second coil of the second contactor, the second self-resetting button, the second gas pressure switch, and the first normally closed contact of the first contactor are connected in series, the other end of the first normally closed contact of the first contactor is connected to the second incoming line switch, and the other end of the second incoming line switch is connected to the local control box and the fourth normally open contact of the second contactor respectively; one end of the fourth normally open contact of the second contactor is connected to the local control box, and the other end of the fourth normally open contact of the second contactor is connected to the electromagnetic valve of the second starting gas cylinder.

[0014] By means of this, the automatic switching between the two groups of starting gas cylinders (two routes of compressed air power energy) can be effectively realized.

[0015] Preferably, first and second energy source online indicator lamps are further included on the main panel of the conversion box and correspond to the two compressed air power sources respectively, and the conversion box further includes first and second indicator lamp circuits for controlling the first and second energy source online indicator lamps. Thus, it can be directly displayed on the main panel of the conversion box which compressed air power source is used as the starting power supply.

[0016] Preferably, the conversion box further includes a test lamp circuit for testing whether the first and second energy source online indicator lamps are faulty. Thus, troubleshooting can be effectively performed.

[0017] Preferably, a fuse connected in the first and second energy source control circuits for short circuit protection is further included.

[0018] Preferably, a fuse connected in the first and second indicator lamp circuits and the test lamp circuit for short circuit protection is further included. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 is a structural schematic diagram of an energy automatic conversion device in a dual-gas combination form according to an embodiment of the present application.

[0020] Figure 2 is Figure 1 is a right view of the energy automatic conversion device shown in FIG. 1.

[0021] Figure 3 is a schematic circuit principle diagram of an energy automatic conversion device in a dual-gas combination form according to an embodiment of the present application. DETAILED DESCRIPTION

[0022] The present application is further illustrated below in conjunction with the accompanying drawings and the following embodiments, and it should be understood that the accompanying drawings and the following embodiments are only used to illustrate the present application, rather than limit the present application. Some non-essential improvements and adjustments made by those skilled in the art based on the above content of the present application all belong to the protection scope of the present application. The following example specific process parameters are only one example in the appropriate range, i.e., those skilled in the art can make appropriate selection within the range through the description herein, rather than be limited to the specific values of the following examples.

[0023] The present application provides an energy automatic conversion device in a dual-gas combination form applied to a ship emergency generator self-starting system (hereinafter also referred to as an energy automatic conversion device), and the starting energy applicable to the energy automatic conversion device is two independent starting gas cylinders, i.e., a so-called dual-gas combination. Specifically, Figure 1 is a structural schematic diagram of an energy automatic conversion device in a dual-gas combination form according to an embodiment of the present application, and Figure 2 is Figure 1Right view of the energy automatic switching device. As Figure 1 and Figure 2 As shown, the energy automatic switching device of the embodiment includes a switching box 1, which is used to carry the main devices for realizing the energy switching function of the self-starting of the emergency generator of the ship. As shown, the main panel of the switching box 1 is provided with a plurality of buttons and indicator lights, specifically, including a “first energy online” button, a “second energy online” button, a “first energy online” indicator light, a “second energy online” indicator light, and a “test light” indicator light. Each button and indicator light will be described in detail below. Figure 1

[0024] In addition, as shown in Figure 1 and Figure 2 , a plurality of filler funnels are also provided on one side of the box body of the switching box 1, cables can enter and exit the switching box 1 through the filler funnels, which are used to connect the internal circuit of the switching box with the local control box of the emergency generator of the ship, the electromagnetic valve of the starting cylinder, etc. The number and layout of the filler funnels can be changed according to actual needs, and are not limited to the schematic illustration in the figure.

[0025] In addition, Figure 3 is a schematic circuit principle diagram of the energy automatic switching device in a double-gas combination form according to an embodiment of the utility model, which schematically shows the main circuit composition inside the switching box of the energy automatic switching device. As shown, Figure 3 The energy automatic switching device of the embodiment further includes first and second energy control circuits provided in the switching box for respectively controlling the supply of two compressed air power energy. The input end of the first and second energy control circuits is connected with the local control box of the emergency generator of the ship, and the output end of the first and second energy control circuits is respectively connected with the electromagnetic valve of the first and second starting cylinders. The above-mentioned first and second energy control circuits are respectively connected with first and second gas pressure monitoring components for respectively monitoring the gas pressure in the first and second starting cylinders, and the first or second energy control circuit is selectively turned on or off based on the gas pressure monitored by the first and second gas pressure monitoring components, so as to switch between the two compressed air power energy. Thus, the automatic switching of the energy supply (double compressed air power energy) for the self-starting of the emergency generator of the ship is realized, the “dark time” of power failure on the ship is minimized, and the safety of the ship is maximized.

[0026] ​Specifically, when using the first starting gas cylinder, if the first air pressure monitoring component detects that the first starting gas cylinder is unable to properly supply compressed air (for example, when the gas pressure within the first starting gas cylinder is below the rated safety pressure), the first energy control circuit is disconnected. At this point, the second energy control circuit is connected, automatically using the alternative second starting gas cylinder. Similarly, when using the second starting gas cylinder, if the second air pressure monitoring component detects that the second starting gas cylinder is unable to properly supply compressed air (for example, when the gas pressure within the second starting gas cylinder is below the rated safety pressure), the second energy control circuit is disconnected. At this point, the first energy control circuit is connected, automatically using the alternative first starting gas cylinder. Thus, the automatic energy conversion device of this embodiment determines the automatic conversion condition by monitoring the gas pressure within the corresponding starting gas cylinders, thereby automatically switching between the first and second energy control circuits. Specifically, in this embodiment, the first and second air pressure monitoring components may be, for example, gas pressure switches provided on the first and second starting gas cylinders.

[0027] In addition, the energy automatic conversion device of this embodiment may also include energy operating components respectively connected to the above-mentioned first and second energy control circuits. By performing a selection operation on the energy operating component, one of the first and second energy control circuits can be used as the preferred starting energy for starting the emergency generator, and the other can be used as the alternative starting energy for starting the emergency generator. Specifically, in this embodiment, the energy operating components can be the first and second self-reset buttons respectively connected to the above-mentioned first and second energy control circuits, which are used to select the two groups of starting energy (two compressed air power energy). Therefore, the energy automatic conversion device of this embodiment can manually set the preferred energy supply, and can manually rotate the preferred starting energy regularly, thereby optimizing maintenance and relatively extending the service life.

[0028] More specifically, in Figure 3 In the energy automatic conversion device of the embodiment shown, the conversion box also includes a first contactor KM1 and a second contactor KM2 that form an interlock, which are respectively used to supply two groups of starting energy (two compressed air power energy), and a first incoming line switch QS1 and a second incoming line switch QS2 that are respectively used to control the overall on and off of the automatic supply of the two groups of starting energy (two compressed air power energy).

[0029] Further Figure 3 As shown, the first energy control circuit may include the first coil M1 of the first contactor KM1, the first reset button SR1, the first gas pressure switch PS1, the second normally closed contact KM2-4 of the second contactor KM2, the first incoming line switch QS1, and the first normally open contact KM1-1 of the first contactor KM1. The first normally open contact KM1-1 is the main contact of the first contactor KM1.

[0030] Specifically, one end of the first coil M1 of the first contactor KM1 is connected with the first incoming line switch QS1, the other end of the first coil M1 of the first contactor KM1, the first self-resetting button SR1, the first gas pressure switch PS1 and the second normally closed contact KM2-4 of the second contactor KM2 are connected in series, the other end of the second normally closed contact KM2-4 of the second contactor KM2 is connected with the first incoming line switch QS1, the other end of the first incoming line switch QS1 is connected with the local control box and the first normally open contact KM1-1 of the first contactor KM1 respectively; one end of the first normally open contact KM1-1 of the first contactor KM1 is connected with the local control box, the other end of the first normally open contact KM1-1 of the first contactor KM1 is connected with the first starting gas cylinder electromagnetic valve.

[0031] In addition, in the first energy control circuit, a first fuse FU11 connected between the other end of the second normally closed contact KM2-4 of the second contactor KM2 and the first incoming line switch QS1, and a second fuse FU12 connected between one end of the first coil M1 of the first contactor KM1 and the first incoming line switch QS1 are further included. The first fuse FU11 and the second fuse FU12 are used for short circuit protection of the first energy control circuit.

[0032] With reference to Figure 3 The second energy control circuit can include the second coil M2 of the second contactor KM2, the second self-resetting button SR2, the second gas pressure switch PS2, the first normally closed contact KM1-4 of the first contactor KM1, the second incoming line switch QS2, and the fourth normally open contact KM2-1 of the second contactor KM2.

[0033] Specifically, one end of the second coil M2 of the second contactor KM2 is connected with the second incoming line switch QS2, the other end of the second coil M2 of the second contactor KM2, the second self-resetting button SR2, the second gas pressure switch PS2 and the first normally closed contact KM1-4 of the first contactor KM1 are connected in series, the other end of the first normally closed contact KM1-4 of the first contactor KM1 is connected with the second incoming line switch QS2, the other end of the second incoming line switch QS2 is connected with the local control box and the fourth normally open contact KM2-1 of the second contactor KM2 respectively; one end of the fourth normally open contact KM2-1 of the second contactor KM2 is connected with the local control box, the other end of the fourth normally open contact KM2-1 of the second contactor KM2 is connected with the second starting gas cylinder electromagnetic valve.

[0034] In addition, in the second energy control circuit, a third fuse FU21 is connected between the other end of the first normally closed contact KM1-4 of the first contact KM1 and the second incoming line switch QS2, and a fourth fuse FU22 is connected between one end of the second coil M2 of the second contact KM2 and the second incoming line switch QS2. The third fuse FU21 and the fourth fuse FU22 are used for short circuit protection of the second energy control circuit.

[0035] The first incoming line switch QS1 functions to control the total on-off of the automatically supplied starting energy (compressed air power energy). The first self-resetting button SR1 can cause the second energy control circuit to supply the starting energy to the emergency generator. The first self-resetting button SR1 is a normally closed button (i.e. Figure 1 the button marked "second energy on-line"). Pressing the first self-resetting button SR1 causes the first energy control circuit to be in an off state, and the second energy control circuit to be in an on state, thereby causing the second energy to be on-line. The main panel of the conversion box is also provided with an indicator lamp corresponding to the second energy on-line, such as Figure 1 the indicator lamp marked "second energy on-line".

[0036] The second incoming line switch QS2 functions to control the total on-off of the automatically supplied starting energy (compressed air power energy). The first incoming line switch QS1 and the second incoming line switch QS2 are both normally open switches. The second self-resetting button SR2 can cause the first energy control circuit to supply the starting energy to the emergency generator. The second self-resetting button SR2 is also a normally closed button (i.e. Figure 1 the button marked "first energy on-line"). Pressing the second self-resetting button SR2 causes the second energy control circuit to be in an off state, and the first energy control circuit to be in an on state, thereby causing the first energy to be on-line. The main panel of the conversion box is also provided with an indicator lamp corresponding to the first energy on-line, such as Figure 1 the indicator lamp marked "first energy on-line". That is, the present embodiment can rotate the preferred starting energy (two sets of starting air cylinders) by pressing the self-resetting button SR1 or SR2 during the working cycle.

[0037] Furthermore, as previously mentioned, the first and second gas pressure switches PS1 and PS2, respectively installed on the first and second starting gas cylinders, are connected to the corresponding first and second energy control circuits within the switch box. These switches monitor the gas pressures within the two starting gas cylinders to determine automatic switching conditions. Specifically, when the first energy control circuit is providing starting power to the emergency generator, if the gas pressure within the first starting gas cylinder falls below the rated safety pressure, the first gas pressure switch PS1 will open, allowing the second energy control circuit to provide starting power to the emergency generator. Similarly, when the second energy control circuit is providing starting power to the emergency generator, if the gas pressure within the second starting gas cylinder falls below the rated safety pressure, the second gas pressure switch PS2 will open, allowing the first energy control circuit to provide starting power to the emergency generator. This rated safety pressure can be set based on actual needs or regulatory requirements.

[0038] Continue to refer Figure 3 The second energy control circuit may also include a test light circuit, a first indicator light circuit and a second indicator light circuit.

[0039] like Figure 3 The test light circuit includes the third coil M3 of the third contactor KM3, a third self-reset button SR3, a fifth fuse FU31, and a sixth fuse FU32. Specifically, one end of the third coil M3 of the third contactor KM3 is connected to the local control box, the other end of the second incoming line switch QS2, and the fourth normally open contact KM2-1 of the second contactor KM2 via the sixth fuse FU32. The other end of the third coil M3 of the third contactor KM3 is connected in series with the third self-reset button SR3. The other end of the third self-reset button SR3 is connected to the local control box, the other end of the second incoming line switch QS2, and the fourth normally open contact KM2-1 of the second contactor KM2 via the fifth fuse FU31. The fifth fuse FU31 and the sixth fuse FU32 provide short-circuit protection for the test light circuit.

[0040] The purpose of the test light circuit is to test the following Figure 3 The first energy online indicator light PWR1 and the second energy online indicator light PWR2 (i.e. Figure 1 The indicator lights marked as "First Energy Online" and "Second Energy Online" in the figure are faulty, and the third self-reset button SR3 is a normally open button. In addition, the main panel of the conversion box is also equipped with an indicator light corresponding to the test light circuit, such as Figure 1 The first indicator light circuit and the second indicator light circuit are used to control the working status of the first energy online indicator light PWR1 and the second energy online indicator light PWR2.

[0041] like Figure 3As shown, the first indicator light circuit can include the first power on indicator light PWR1, the second normally open contact KM1-2 of the first contactor KM1, the seventh normally open contact KM3-1 of the third contactor KM3, the seventh fuse FU41 and the eighth fuse FU42. The second indicator light circuit can include the second power on indicator light PWR2, the fifth normally open contact KM2-2 of the second contactor KM2, the eighth normally open contact KM3-2 of the third contactor KM3, the ninth fuse FU43 and the tenth fuse FU44. Details are as follows.

[0042] One end of the first power on indicator light PWR1 is connected to the local control box, the second indicator light circuit, the other end of the second incoming line switch QS2, the pilot light circuit and the fourth normally open contact KM2-1 of the second contactor KM2 through the eighth fuse FU42 respectively; the other end of the first power on indicator light PWR1 and the second normally open contact KM1-2 of the first contactor KM1 are connected in series, and the second normally open contact KM1-2 of the first contactor KM1 is also connected to the local control box, the second indicator light circuit, the other end of the second incoming line switch QS2, the pilot light circuit and the fourth normally open contact KM2-1 of the second contactor KM2 through the seventh fuse FU41 respectively, and the seventh normally open contact KM3-1 of the third contactor KM3 is connected in parallel with the second normally open contact KM1-2 of the first contactor KM1, wherein when the first energy control circuit is used to provide starting energy for the emergency generator, at this time the first coil M1 of the first contactor KM1 is powered, the second normally open contact KM1-2 of the first contactor KM1 is closed, and at this time the first power on indicator light PWR1 is turned on.

[0043] One end of the second power on indicator light PWR2 is connected to the local control box, the first indicator light circuit, the other end of the second incoming line switch QS2, the pilot light circuit and the fourth normally open contact KM2-1 of the second contactor KM2 through the tenth fuse FU44 respectively; the other end of the second power on indicator light PWR2 and the fifth normally open contact KM2-2 of the second contactor KM2 are connected in series, and the fifth normally open contact KM2-2 of the second contactor KM2 is also connected to the local control box, the first indicator light circuit, the other end of the second incoming line switch QS2, the pilot light circuit and the fourth normally open contact KM2-1 of the second contactor KM2 through the ninth fuse FU43 respectively, and the eighth normally open contact KM3-2 of the third contactor KM3 is connected in parallel with the fifth normally open contact KM2-2 of the second contactor KM2; wherein when the second energy control circuit is used to provide starting energy for the emergency generator, at this time the second coil M2 of the second contactor KM2 is powered, the fifth normally open contact KM2-2 of the second contactor KM2 is closed, and at this time the second power on indicator light PWR2 is turned on.

[0044] When it is necessary to test the lamp, press the third self-reset button SR3 to close the third self-reset button SR3, the third coil M3 of the third contactor KM3 is energized, the seventh normally open contact KM3-1 of the third contactor KM3 and the eighth normally open contact KM3-2 of the third contactor KM3 will be closed, and if the first energy online indicator light PWR1 and the second energy online indicator light PWR2 are not faulty, they will light up at the same time.

[0045] Further references Figure 3 The automatic energy conversion device of this embodiment also includes a third normally open contact KM1-3 of the first contactor KM1 and a sixth normally open contact KM2-3 of the second contactor KM2. Both ends of the third normally open contact KM1-3 of the first contactor KM1 are connected to the local control box, and both ends of the sixth normally open contact KM2-3 of the second contactor KM2 are also connected to the local control box. One normally open contact in each of the first contactor KM1 and the second contactor KM2 is connected to the local control box of the emergency generator, allowing staff at the local control box to determine whether the first or second gas cylinder is online. In other words, the conversion box also provides an online status output (to the local control box of the emergency generator) for two sets of starting energy sources (two compressed air power sources). This allows real-time feedback of the status of the preferred energy supply selection to the local control box of the emergency generator or the monitoring and alarm system.

[0046] In summary, the utility model is suitable for automatic conversion between two sets of starting gas cylinders (two-way compressed air power energy) for starting energy. All electrical components in the conversion box of the utility model refer to Figure 3 Electrical connections are made to form a "one-in, two-out" topology. The conversion box is connected to the on-site control box of the emergency generator, which introduces the control power supply and provides two power control outputs, which are respectively connected to the solenoid valves on the gas supply lines corresponding to the two sets of starting gas cylinders on the emergency generator set. In this embodiment, the control power supply is DC24V. In addition, during the operating life cycle of the ship, the conversion box of the utility model can be transformed and upgraded as needed. By re-combining the components within the conversion box, other starting energy sources, such as "dual electricity" or "electricity + gas" combination conversion functions, can be realized.

[0047] More specifically, the working process of the energy automatic conversion device in the dual-gas combination form of the utility model is further illustrated with a specific example. When the energy automatic conversion device in the dual-gas combination form is used, the first energy control circuit is selected as the preferred energy, and the second energy control circuit is the alternative energy. First, under the premise that the wiring inside and outside the conversion box is correct, the first incoming switch QS1 and the second incoming switch QS2 are artificially closed in sequence (with an interval of 2-3 seconds), and the second gas pressure switch PS2 is also closed. When the first incoming switch QS1 is closed, the first coil M1 of the first contactor KM1 is powered, and the normally open contact of the first contactor KM1 is closed, so that the first energy control circuit is in a conducting state, thereby connecting the on-site control box with the first starting gas cylinder solenoid valve, achieving the purpose of starting the emergency generator. At the same time, the first normally open contact of the first contactor KM1 is disconnected, so that the second energy control circuit is in an open state. If the first energy control circuit fails, the first coil M1 of the first contactor KM1 will not be powered, and at this time, the first normally open contact of the first contactor KM1 will be closed, so that the second energy control circuit is in a conducting state, thereby connecting the on-site control box with the second starting gas cylinder solenoid valve, so as to realize the automatic conversion of the energy (two compressed air power energy sources) supply of the self-starting of the emergency generator of the ship. If the second energy control circuit is selected as the preferred energy, the first energy control circuit is the alternative energy. First, the second incoming switch QS2 is closed, and then the first incoming switch QS1 is closed. The subsequent operation steps are similar to the above content and will not be described in detail here.

[0048] In addition, it should be noted that during fault maintenance, all incoming switches can be disconnected, and the corresponding components or lines can be checked and replaced according to the electrical principle wiring diagram.

[0049] In summary, the first energy control circuit contains the first coil M1 of the first contactor KM1 and the second normally closed contact KM2-4 of the second contactor KM2, and the second energy control circuit contains the second coil M2 of the second contactor KM2 and the first normally closed contact KM1-4 of the first contactor KM1, so that the first energy control circuit is in the on operating state in response to the control signal emitted when the second energy control circuit is disconnected, and the second energy control circuit is also in the on operating state in response to the control signal emitted when the first energy control circuit is disconnected, so that the first energy control circuit and the second energy control circuit can be switched, thereby realizing automatic switching of the emergency generator self-starting energy (two-way compressed air power) supply on the ship, wherein one of the first energy control circuit and the second energy control circuit is the preferred starting energy, and the other is the alternative starting energy, when the preferred starting energy connected with the emergency generator cannot start the emergency generator, the alternative starting energy can be automatically switched to connect with the emergency generator, realizing zero-time delay switching, ensuring the normal start of the emergency generator, and maximizing the safety of the ship.

[0050] The first energy control circuit further contains a first self-resetting button SR1, and the second energy control circuit further contains a second self-resetting button SR2, so that the worker can press the normally closed first self-resetting button SR1 to make the compressed air power energy in the second energy control circuit the preferred starting energy, or press the normally closed second self-resetting button SR2 to make the compressed air power energy in the first energy control circuit the preferred starting energy, so that the preferred starting energy can be manually and periodically set, and the service life of the starting energy can be relatively prolonged.

[0051] In summary, the utility model can have the following beneficial effects: the automatic switching of the emergency generator self-starting energy (two-way compressed air power energy) supply on the ship (when the preferred starting cylinder cannot normally supply compressed air, the alternative starting cylinder is automatically put into use) can minimize the "dark time" of power failure on the ship and maximize the safety of the ship. The utility model has irreplaceable characteristics in promoting and ensuring the safety of the ship. In addition, the utility model can also artificially set the preferred energy supply, and the preferred starting energy can be manually and periodically set, so that the maintenance and repair can be optimized and the service life can be relatively prolonged. The state of the preferred energy supply selection can also be fed back to the emergency generator local control box or the monitoring alarm system in real time. In addition, the starting system can also be upgraded and transformed to a certain extent, such as from a "double cylinder" mode to a "battery + cylinder" or "double battery" mode. In the special period of ship operation,

[0052] Without departing from the purpose of the basic characteristics of the present application, the present application can be embodied in various forms, therefore the embodiment of the present application is used for description and not limitation, since the scope of the present application is limited by the claims and not limited by the description, and all changes falling within the scope defined by the claims, or within the equivalent scope defined by the claims, should be understood as included in the claims.

Claims

1. An automatic energy conversion device in the form of a dual-gas combination, characterized in that: It includes: conversion box; First and second energy control circuits provided in the conversion box for respectively controlling the supply of two compressed air power energies; The input ends of the first and second energy control circuits are connected to the local control box of the ship's emergency generator, and the output ends of the first and second energy control circuits are respectively connected to the solenoid valves of the first and second starting gas cylinders of the ship's emergency generator; The first and second energy control circuits are also each connected to a first and a second air pressure monitoring component for respectively monitoring the gas pressure in the first and second starting gas cylinders, and selectively open and close the first or second energy control circuit based on the gas pressure monitored by the first and second air pressure monitoring components to switch between the two compressed air power energies.

2. The automatic energy conversion device according to claim 1, characterized in that: It also includes energy operation components which are respectively connected to the first and second energy control circuits to perform the preferred operation on the two compressed air power energies.

3. The automatic energy conversion device according to claim 2, characterized in that: The first and second gas pressure monitoring components are a first gas pressure switch (PS1) and a second gas pressure switch (PS2) respectively provided on the first and second starting gas cylinders to monitor the gas pressure in each starting gas cylinder.

4. The automatic energy conversion device according to claim 3, characterized in that: The energy operation component is a first self-reset button (SR1) and a second self-reset button (SR2) respectively connected to the first and second energy control circuits.

5. The automatic energy conversion device according to claim 4, characterized in that: The first self-reset button (SR1) and the second self-reset button (SR2) are normally closed buttons.

6. The automatic energy conversion device according to claim 5, characterized in that: The conversion box is also provided with: A first contactor (KM1) and a second contactor (KM2) forming an interlock; The first energy control circuit comprises a first coil (M1) of a first contactor (KM1), a first self-reset button (SR1), a first gas pressure switch (PS1), a second normally closed contact (KM2-4) of a second contactor (KM2), a first incoming line switch (QS1), and a first normally open contact (KM1-1) of the first contactor (KM1); one end of the first coil (M1) of the first contactor (KM1) is connected to the first incoming line switch (QS1), and the other end of the first coil (M1) of the first contactor (KM1), the first self-reset button (SR1), the first gas pressure switch (PS1) and the first normally open contact (KM1-1) of the first contactor (KM1) are connected to the first incoming line switch (QS1). S1 and the second normally closed contact (KM2-4) of the second contactor (KM2) are connected in series in sequence, the other end of the second normally closed contact (KM2-4) of the second contactor (KM2) is connected to the first incoming line switch (QS1), and the other end of the first incoming line switch (QS1) is respectively connected to the local control box and the first normally open contact (KM1-1) of the first contactor (KM1); one end of the first normally open contact (KM1-1) of the first contactor (KM1) is connected to the local control box, and the other end of the first normally open contact (KM1-1) of the first contactor (KM1) is connected to the solenoid valve of the first starting gas cylinder; The second energy control circuit includes a second coil (M2) of a second contactor (KM2), a second self-reset button (SR2), a second gas pressure switch (PS2), a first normally closed contact (KM1-4) of a first contactor (KM1), a second incoming line switch (QS2), and a fourth normally open contact (KM2-1) of the second contactor (KM2); one end of the second coil (M2) of the second contactor (KM2) is connected to the second incoming line switch (QS2), and the other end of the second coil (M2) of the second contactor (KM2), the second self-reset button (SR2), the second gas pressure switch (PS2) are connected to the second incoming line switch (QS2). S2) and the first normally closed contact (KM1-4) of the first contactor (KM1) are connected in series in sequence, the other end of the first normally closed contact (KM1-4) of the first contactor (KM1) is connected to the second incoming line switch (QS2), and the other end of the second incoming line switch (QS2) is respectively connected to the local control box and the fourth normally open contact (KM2-1) of the second contactor (KM2); one end of the fourth normally open contact (KM2-1) of the second contactor (KM2) is connected to the local control box, and the other end of the fourth normally open contact (KM2-1) of the second contactor (KM2) is connected to the solenoid valve of the second starting gas cylinder.

7. The automatic energy conversion device according to claim 5, characterized in that: It also includes first and second energy online indicator lights which are arranged on the main panel of the conversion box and correspond to the two compressed air power sources respectively. The conversion box also includes first and second indicator light circuits for controlling the first and second energy online indicator lights.

8. The automatic energy conversion device according to claim 7, characterized in that: The conversion box also includes a light test circuit for testing whether the first and second energy online indicator lights are faulty.

9. The automatic energy conversion device according to claim 1, characterized in that: It also includes a fuse connected to the first and second energy control loops for short circuit protection.

10. The automatic energy conversion device according to claim 8, characterized in that: It also includes a fuse connected to the first and second indicator light circuits and the test light circuit for short circuit protection.

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