Automatic energy conversion device in double-gas combination form

Abstract

The invention discloses an automatic energy conversion device in a double-gas combination mode. The automatic energy conversion device is applied to conversion between energy assemblies needed for 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. Compared with the prior art, the system has the following beneficial effects that automatic switching of starting energy between two groups of starting gas cylinders can be realized, and when one selected gas cylinder cannot normally supply compressed air, the other gas cylinder is automatically selected, so that the'dark time 'of power failure on a ship is shortened, and the safety of the ship is promoted to the greatest extent.

Description

Technical Field

[0001] The invention relates to the technical field of self-starting energy conversion of ship emergency generators, and in particular to an automatic energy conversion device in the form of a dual-gas combination. Background Art

[0002] Emergency generators are commonly found on ships. As one of the main forms of emergency power supply, they are an important measure to obtain necessary power on board before the ship resumes normal power supply after the main power supply is lost. Emergency generators are even related to whether the ship can resume normal power supply, which shows that their importance to ship safety is self-evident.

[0003] For such an important emergency generator, the relevant regulations and rules specifically require that the starting method of the self-starting unit should have two independent starting devices, including starting energy. Usually, the energy storage capacity of the first set can be at least for three consecutive starts, and it should be protected to avoid being exhausted by the self-starting system, unless a second independent starting device is provided. A second energy source should also be provided to start three more times within 30 minutes, unless manual starting can be proven to be effective. Through the understanding of various types of ships, the emergency generators that meet the regulations and rules are equipped with common energy forms for their starting devices: two sets of batteries (or compressed air), one set of batteries (or compressed air) and a mechanical starting device. The mechanical starting device includes springs, hydraulic energy storage, etc.

[0004] The above-mentioned common configuration of emergency generator starting device has at least one battery (storage battery) or gas cylinder (compressed air) starter, 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 is lost. In this self-starting device, a switch box is connected in series to the energy input line of the starter motor. The switch box controls the on and off of the starting energy input line, including the selection of the battery.

[0005] Practice shows that the above emergency generator starting system that meets the requirements of the regulations is normal in daily ship operation through regular inspection and maintenance. However, it has happened more than once in real cases that a specific ship sailing in a specific water area has a specific fault, and the emergency generator cannot be started as soon as possible (including manual start-up does not work), and even the so-called "breakdown" occurs, and it is necessary to urgently check the possible starting problems item by item. At this point, every minute and every second that endangers the safety of the ship is very critical. To solve the urgent problem, we must race against time.

[0006] Although the existing self-starting system of the emergency generator meets the requirements of the regulations, the control method of the switch box for starting the energy supply is only on-site manual operation. When it is necessary to switch the battery or switch to compressed air starting, there will be a certain delay in time (manual intervention is required to start), which is also a very obvious "defect" for the safety of ships at critical moments. Summary of the invention

[0007] In order to solve the above technical problems, the present invention provides an automatic energy conversion device in the form of a dual-gas combination suitable for the self-starting of a ship emergency generator, which can realize the automatic supply of energy required for the self-starting of the ship emergency generator. The device comprises: a conversion box; a first and a second energy control circuit arranged 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 on-site control box of the ship 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 emergency generator; the first and second energy control circuits are also respectively connected to the first and second air pressure monitoring components for respectively monitoring the gas pressures in the first and second starting gas cylinders, and the first or second energy control circuit is selectively turned on and off based on the gas pressures monitored by the first and second air pressure monitoring components to switch between the two compressed air power energies.

[0008] The present invention has the following beneficial effects: the energy automatic conversion device of the dual-gas combination form for the self-starting of the ship emergency generator according to the present invention can realize the automatic conversion between the starting energy of two groups of starting gas cylinders (two-way compressed air power energy), and when one of the selected starting gas cylinders cannot normally supply compressed air, another starting gas cylinder is automatically selected, thereby minimizing the "dark time" of power outage on the ship and maximizing the safety of the ship. Therefore, the present invention has an irreplaceable significance in terms of time saving for ensuring the safety of the ship and restoring normality as soon as possible in extraordinary moments.

[0009] Preferably, the device also includes an energy operation component connected to the first and second energy control circuits to select the two compressed air power energies. Therefore, the present invention also has the following beneficial effects: by selecting and operating the energy operation component, one of the first and second energy control circuits can be used as the first starting energy for starting the emergency generator, and the other can be used 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 and set regularly, thereby optimizing maintenance and relatively extending the service life.

[0010] Preferably, the first and second gas pressure monitoring components are first and second gas pressure switches respectively provided 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 determined by monitoring the gas pressure in the corresponding starting gas cylinder, thereby automatically switching between the first and second energy control circuits.

[0011] Preferably, the energy operation component is a first and a second self-reset button connected to the first and second energy control circuits, respectively. Thus, the present invention can effectively realize the first selection of two sets of starting energy (two compressed air power energy), so that the first choice energy supply can be set manually, and the first choice starting energy can be manually rotated regularly, thereby optimizing maintenance and relatively extending the service life.

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

[0013] Preferably, the conversion box is further provided with: a first contactor and a second contactor that form an interlock; the first energy control circuit includes a coil of the first contactor, a first self-reset button, a first gas pressure switch, a 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 coil of the first contactor is connected to the first incoming line switch, the other end of the coil of the first contactor, the first self-reset button, the first gas pressure switch, and the normally closed contact of the second contactor are sequentially connected in series, the other end of the 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 respectively connected to the local control box and the first normally open contact of the first contactor; 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 local control box. One end is connected to the solenoid valve of the first starting gas cylinder; the second energy control circuit includes a coil of the second contactor, a second self-reset button, a second gas pressure switch, a normally closed contact of the first contactor, a second incoming line switch, and a first normally open contact of the second contactor; one end of the coil of the second contactor is connected to the second incoming line switch, the other end of the coil of the second contactor, the second self-reset button, the second gas pressure switch and the normally closed contact of the first contactor are connected in series in sequence, the other end of the 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 respectively connected to the local control box and the first normally open contact of the second contactor; one end of the first normally open contact of the second contactor is connected to the local control box, and the other end of the first normally open contact of the second contactor is connected to the solenoid valve of the second starting gas cylinder.

[0014] With the aid of this, automatic switching between two groups of starting gas cylinders (two compressed air power sources) can be effectively achieved.

[0015] Preferably, the first and second energy online indicator lights are provided on the main panel of the conversion box and correspond to the two compressed air power sources respectively, and the conversion box also includes first and second indicator light circuits for controlling the first and second energy online indicator lights. Thus, which compressed air power source is used as the starting power supply can be intuitively displayed on the main panel of the conversion box.

[0016] Preferably, the conversion box further includes a lamp test circuit for testing whether the first and second energy online indicator lights are faulty, thereby effectively troubleshooting the fault.

[0017] Preferably, it also includes a fuse connected to the first and second energy control loops for short circuit protection.

[0018] Preferably, it also includes a fuse connected to the first and second indicator light circuits and the test light circuit for short circuit protection. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0020] Figure 2 yes Figure 1 The right side view of the automatic energy conversion device is shown.

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

[0022] The present invention is further described below in conjunction with the accompanying drawings and the following embodiments. It should be understood that the accompanying drawings and the following embodiments are only used to illustrate the present invention, but not to limit the present invention. Some non-essential improvements and adjustments made by those skilled in the art based on the above content of the present invention belong to the protection scope of the present invention. The specific process parameters and the like in the following examples are also only examples within a suitable range, that is, those skilled in the art can make a selection within a suitable range through the description of this article, and are not limited to the specific values ​​​​exemplified below.

[0023] The present invention provides an automatic energy conversion device in the form of a dual-gas combination for use in a ship emergency generator self-starting system (hereinafter referred to as the automatic energy conversion device). The starting energy used by the automatic energy conversion device is two sets of independent starting gas cylinders, namely the so-called dual-gas combination. Specifically, Figure 1 is a schematic diagram of the structure of an automatic energy conversion device in a dual-gas combination form according to an embodiment of the present invention, and Figure 2 yes Figure 1 The right side view of the automatic energy conversion device is shown. Figure 1 and Figure 2 As shown, the energy automatic conversion device of this embodiment includes a conversion box 1, which is used to carry the main components for realizing the energy conversion function for the self-starting of the ship emergency generator of the present invention. Figure 1 As shown, the main panel of the conversion 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 later.

[0024] In addition, Figure 1 and Figure 2 As shown, a plurality of stuffing boxes are also provided on one side of the body of the conversion box 1, and cables can enter and exit the conversion box 1 through the stuffing boxes, and are used to connect the internal circuit of the conversion box with the local control box of the ship emergency generator described later, the solenoid valve of the starting gas cylinder, etc. The number and layout of the stuffing boxes can be changed according to actual needs, and are not limited to the schematic diagram in the figure.

[0025] also, Figure 3 This is a schematic circuit diagram of a dual-gas combination energy automatic conversion device according to an embodiment of the present invention, which schematically shows the main circuit structure inside the conversion box of the energy automatic conversion device. Figure 3 As shown, the energy automatic conversion device of this embodiment also includes a first and a second energy control circuit arranged in the conversion box for controlling the supply of two compressed air power energies respectively. 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 connected to the solenoid valves of the first and second starting gas cylinders respectively. The first and second energy control circuits are also respectively connected to the first and second air pressure monitoring components for monitoring the gas pressure in the first and second starting gas cylinders respectively, and the first or second energy control circuit is selectively turned on and off based on the gas pressure monitored by the first and second air pressure monitoring components to convert between the two compressed air power energies. Thereby, the automatic conversion of the supply of energy (dual sets of compressed air power energies) for the self-starting of the ship's emergency generator is realized, the "dark time" of power outages on board is minimized, and the safety of the ship is promoted to the greatest extent.

[0026] Specifically, when using the first starting gas cylinder, if the first air pressure monitoring component detects that the first starting gas cylinder cannot supply compressed air normally (for example, when the gas pressure in the first starting gas cylinder is lower than the rated safety pressure), the first energy control circuit is disconnected, and the second energy control circuit is turned on, and the alternative second starting gas cylinder is automatically used. Similarly, when using the second starting gas cylinder, if the second air pressure monitoring component detects that the second starting gas cylinder cannot supply compressed air normally (for example, when the gas pressure in the second starting gas cylinder is lower than the rated safety pressure), the second energy control circuit is disconnected, and the first energy control circuit is turned on, and the alternative first starting gas cylinder is automatically used. Therefore, the energy automatic conversion device of this embodiment determines the automatic conversion conditions by monitoring the gas pressure in the corresponding starting gas cylinder, thereby automatically switching between the first and second energy control circuits. Specifically, in this embodiment, the first and second air pressure monitoring components can be, for example, gas pressure switches provided on the first and second starting gas cylinders.

[0027] In addition, the energy automatic conversion device of the present 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 components, 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 the present embodiment, the energy operating components may be the first and second self-reset buttons respectively connected to the above-mentioned first and second energy control circuits, for selecting the two groups of starting energy (two compressed air power energy sources). Therefore, the energy automatic conversion device of the present embodiment can manually set the preferred energy supply, and can manually rotate the preferred starting energy regularly, so as to optimize maintenance and relatively extend the service life.

[0028] More specifically, in Figure 3 In the energy automatic conversion device of the illustrated embodiment, 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 sources), and a first incoming line switch QS1 and a second incoming line switch QS2 that are respectively used to control the overall on-off of the automatic supply of the two groups of starting energy (two compressed air power energy sources).

[0029] Further Figure 3 As shown, the first energy control circuit may include the coil M1 of the first contactor KM1, the first self-reset button SR1, the first gas pressure switch PS1, the 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 coil M1 of the first contactor KM1 is connected to the first incoming line switch QS1, the other end of the coil M1 of the first contactor KM1, the first self-reset button SR1, the first gas pressure switch PS1 and the normally closed contact KM2-4 of the second contactor KM2 are connected in series in sequence, the other end of the 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 first starting gas cylinder solenoid valve.

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

[0032] Continue to refer Figure 3 As shown, the second energy control circuit may include the coil M2 of the second contactor KM2, the second self-reset button SR2, the second gas pressure switch PS2, the normally closed contact KM1-4 of the first contactor KM1, the second incoming line switch QS2, and the first normally open contact KM2-1 of the second contactor KM2. The first normally open contact KM2-1 is the main contact of the second contactor KM2.

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

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

[0035] The first incoming switch QS1 plays the role of overall on-off control for automatically supplying starting energy (compressed air power energy). The first self-reset button SR1 can enable the second energy control circuit to provide starting energy to the emergency generator. The first self-reset button SR1 is a normally closed button (i.e. Figure 1 When the first self-reset button SR1 is pressed, the first energy control circuit is in an open circuit state, and the second energy control circuit is in an on state, so that the second energy is online. The main panel of the conversion box is also provided with an indicator light corresponding to the second energy online, such as Figure 1 The indicator light marked as "Second Energy Online"

[0036] The second inlet switch QS2 plays the role of overall on-off control for automatically supplying starting energy (compressed air power energy). The first inlet switch QS1 and the second inlet switch QS2 are both normally open switches. The second self-reset button SR2 can enable the first energy control circuit to provide starting energy to the emergency generator. The second self-reset button SR2 is also a normally closed button (i.e. Figure 1 When the second self-reset button SR2 is pressed, the second energy control circuit is in an open circuit state, and the first energy control circuit is in a conducting state, so that the first energy is online. The main panel of the conversion box is also provided with an indicator light corresponding to the first energy online, such as Figure 1 In other words, in this embodiment, the preferred starting energy (two groups of starting gas cylinders) can be rotated by pressing the self-reset button SR1 or SR2 during the working cycle.

[0037] In addition, as mentioned above, the first gas pressure switch PS1 and the second gas pressure switch PS respectively provided on the first and second starting gas cylinders are connected to the corresponding first and second energy control circuits in the conversion box, so as to judge the automatic conversion conditions by monitoring the gas pressure in the two starting gas cylinders. That is to say, when the first energy control circuit is used to provide starting power to the emergency generator, when the gas pressure in the first starting gas cylinder is lower than the rated safety pressure, the first gas pressure switch PS1 will be disconnected, so that the second energy control circuit can provide starting energy to the emergency generator. Similarly, when the second energy control circuit is used to provide starting power to the emergency generator, when the gas pressure in the second starting gas cylinder is lower than the rated safety pressure, the second gas pressure switch PS2 will be disconnected, so that the first energy control circuit can provide starting energy to the emergency generator. The above-mentioned rated safety pressure can be set according to actual needs or regulatory rules.

[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 lamp circuit includes the coil M3 of the third contactor KM3, the third self-reset button SR3, the fifth fuse FU31 and the sixth fuse FU32. Specifically, one end of the 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 first normally open contact KM2-1 of the second contactor KM2 through the sixth fuse FU32, the other end of the coil M3 of the third contactor KM3 is connected in series with the third self-reset button SR3, and 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 first normally open contact KM2-1 of the second contactor KM2 through the fifth fuse FU31. Among them, the fifth fuse FU31 and the sixth fuse FU32 are used to perform short-circuit protection on the test lamp circuit.

[0040] The purpose of the test lamp 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 indicate whether there is a fault. The third self-reset button SR3 is a normally open button. In addition, the main panel of the conversion box is also provided with indicator lights corresponding to the test lamp circuit, such as Figure 1 The first indicator light circuit and the second indicator light circuit are used to control the working states 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 may include a first energy online indicator light PWR1, a second normally open contact KM1-2 of a first contactor KM1, a first normally open contact KM3-1 of a third contactor KM3, a seventh fuse FU41, and an eighth fuse FU42. The second indicator light circuit may include a second energy online indicator light PWR2, a second normally open contact KM2-2 of a second contactor KM2, a second normally open contact KM3-2 of a third contactor KM3, a ninth fuse FU43, and a tenth fuse FU44. Details are as follows.

[0042] One end of the first energy online indicator light PWR1 is connected to the local control box, the second indicator light circuit, the other end of the second incoming switch QS2, the test light circuit and the first normally open contact KM2-1 of the second contactor KM2 through the eighth fuse FU42; the other end of the first energy online indicator light PWR1 is connected in series with the second normally open contact KM1-2 of the first contactor KM1, 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 switch QS2, the test light circuit and the first normally open contact KM2-1 of the second contactor KM2 through the seventh fuse FU41. , the other end of the second incoming switch QS2, the test light circuit and the first normally open contact KM2-1 of the second contactor KM2 are connected, the first 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 to the emergency generator, the coil M1 of the first contactor KM1 is energized, the second normally open contact KM1-2 of the first contactor KM1 will be closed, and the first energy online indicator light PWR1 will light up.

[0043] One end of the second energy online indicator light PWR2 is connected to the local control box, the first indicator light circuit, the other end of the second incoming switch QS2, the test light circuit and the first normally open contact KM2-1 of the second contactor KM2 through the tenth fuse FU44; the other end of the second energy online indicator light PWR2 is connected in series with the second normally open contact KM2-2 of the second contactor KM2, and the second 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 switch QS2, the test light circuit and the first normally open contact KM2-1 of the second contactor KM2 through the ninth fuse FU43. , the other end of the second incoming switch QS2, the test light circuit and the first normally open contact KM2-1 of the second contactor KM2 are connected, and the second normally open contact KM3-2 of the third contactor KM3 is connected in parallel with the second normally open contact KM2-2 of the second contactor KM2; wherein, when the second energy control circuit is used to provide starting energy to the emergency generator, the coil M2 of the second contactor KM2 is energized, and the second normally open contact KM2-2 of the second contactor KM2 will be closed, and the second energy online indicator light PWR2 will light up.

[0044] When it is necessary to test the lamp, press the third self-reset button SR3 to close the third self-reset button SR3, and the coil M3 of the third contactor KM3 will be energized, and the first normally open contact KM3-1 of the third contactor KM3 and the second normally open contact KM3-2 of the third contactor KM3 will be closed. If the first energy online indicator light PWR1 and the second energy online indicator light PWR2 have no faults, they will light up at the same time.

[0045] Further references Figure 3 The energy automatic conversion device of this embodiment also includes the third normally open contact KM1-3 of the first contactor KM1 and the third 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 third normally open contact KM2-3 of the second contactor KM2 are also connected to the local control box. Among them, 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, so that the staff can know whether the first gas cylinder is online or the second gas cylinder is online at the local control box. That is to say, the conversion box is also provided with two groups of online status outputs of starting energy (two compressed air power energy) (to the local control box of the emergency generator). Thus, the status of the preferred energy supply selection can be fed back to the local control box of the emergency generator or the monitoring alarm system in real time.

[0046] In summary, the present invention is suitable for automatic conversion between two groups of starting gas cylinders (two compressed air power sources) as starting energy. Figure 3 Electrical connections are made to form a "one-in, two-out" topology. The conversion box is connected to the local control box of the emergency generator, and the control power supply is introduced to perform two-way power control output, which are respectively connected to the solenoid valves on the gas supply pipelines corresponding to the two groups of starting gas cylinders on the emergency generator set. In this embodiment, the control power supply is DC24V. In addition, during the life cycle of the ship's operation, the conversion box of the present invention can be transformed and upgraded as needed, and other starting energy sources, such as the conversion function of "dual electricity" or "electricity + gas" combination, can be realized by re-combining the connection of the components in the conversion box.

[0047] More specifically, a specific example is used to further illustrate the working process of the energy automatic conversion device in the form of a dual-gas combination of the present invention. When using the energy automatic conversion device in the form of a dual-gas combination, the first energy control circuit is selected as the preferred energy source, and the second energy control circuit is selected as the alternative energy source. First, on the premise of determining that the internal and external wiring of the conversion box is correct, the first incoming line switch QS1 and the second incoming line switch QS2 are manually closed in sequence (at intervals of 2 to 3 seconds), and the second gas pressure switch PS2 is also closed. When the first incoming line switch QS1 is closed, the coil M1 of the first contactor KM1 is energized, and the normally open contact of the first contactor KM1 is closed, so that the first energy control circuit is in a conducting state, so that the local control box can be connected to the first starting gas cylinder solenoid valve to achieve emergency response. The purpose of electrical starting; at the same time, the normally closed contact of the first contactor KM1 is disconnected, so that the second energy control circuit is in an open circuit state; if there is a problem with the first energy control circuit, the coil M1 of the first contactor KM1 will not be energized, and the normally closed contact of the first contactor KM1 will be closed, so that the second energy control circuit is in a conducting state, so that the local control box can be connected to the second starting gas cylinder solenoid valve, so as to realize the automatic conversion of the self-starting energy supply (two-way compressed air power energy) of the ship's emergency generator; if the second energy control circuit is selected as the preferred energy, the first energy control circuit is the alternative energy. First, close the second incoming line switch QS2, and then close the first incoming line switch QS1. 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 when troubleshooting, all incoming line switches can be disconnected and the corresponding components or circuits can be troubleshooted and replaced by referring to the electrical principle wiring diagram.

[0049] To summarize, in the present invention, the first energy control circuit contains the coil M1 of the first contactor KM1 and the normally closed contact KM2-4 of the second contactor KM2, and the second energy control circuit contains the coil M2 of the second contactor KM2 and the normally closed contact KM1-4 of the first contactor KM1, so that the first energy control circuit responds to the control signal sent when the second energy control circuit is disconnected to be in a conductive operating state, and the second energy control circuit also responds to the control signal sent when the first energy control circuit is disconnected to be in a conductive operating state, so that the first energy control circuit and the second energy control circuit can be switched, thereby realizing the automatic switching of the self-starting energy (two-way compressed air power) supply of the emergency generator on board, wherein one of the first energy control circuit and the second energy control circuit is used as the preferred starting energy, and the other is used as the alternative starting energy. When the preferred starting energy connected to the emergency generator cannot start the emergency generator, it can be automatically switched to the alternative starting energy and connected to the emergency generator, realizing zero-time delay conversion, ensuring the normal starting of the emergency generator, and ensuring the safety of the ship to the greatest extent.

[0050] The first energy control circuit also contains a first self-reset button SR1, and the second energy control circuit also contains a second self-reset button SR2. The staff presses the normally closed first self-reset button SR1 to make the compressed air power energy in the second energy control circuit the preferred starting energy, or the staff presses the normally closed second self-reset 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. This manual periodic setting of the preferred starting energy can relatively extend the service life of the starting energy.

[0051] In summary, the present invention can have the following beneficial effects: it can realize the automatic conversion of the self-starting energy supply (two-way compressed air power energy) of the ship's emergency generator (when the preferred starting cylinder cannot supply compressed air normally, the alternative starting cylinder is automatically put into use), and the "dark time" of power outages on board is shortened, thereby maximizing the promotion of ship safety. The present invention has irreplaceable characteristics in promoting and ensuring ship safety. In addition, the present invention can also manually set the preferred energy supply, and can manually rotate and set the preferred starting energy regularly, thereby optimizing maintenance and relatively extending the service life. The status of the preferred energy supply selection can also be fed back to the on-site control box or monitoring alarm system of the emergency generator in real time. In addition, it can also facilitate the upgrade and transformation of the starting system to a certain extent, such as from the "dual gas cylinder" mode to the "battery + gas cylinder" or "dual battery". During special periods of ship operation,

[0052] Without departing from the purpose of the basic characteristics of the present invention, the present invention can be embodied in various forms. Therefore, the embodiments of the present invention are used for illustration rather than limitation. Since the scope of the present invention is limited by the claims rather than the specification, all changes within the scope defined by the claims or within the equivalent scope of the scope defined by the claims should be understood to be 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; A first and a second energy control circuit disposed 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 loops are connected to the local control box of the ship emergency generator, and the output ends of the first and second energy control loops are respectively connected to the solenoid valves of the first and second starting gas cylinders of the ship emergency generator; The first and second energy control circuits are also respectively connected to the first and second air pressure monitoring components for respectively monitoring the gas pressures in the first and second starting gas cylinders, and based on the gas pressures monitored by the first and second air pressure monitoring components, the first or second energy control circuit is selectively turned on and off to switch between two compressed air power energy sources.

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 preferred operation on the two compressed air power energies.

3. The automatic energy conversion device according to claim 2 is 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 arranged 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 is 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 is 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 coil (M1) of a first contactor (KM1), a first self-reset button (SR1), a first gas pressure switch (PS1), a 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 coil (M1) of the first contactor (KM1) is connected to the first incoming line switch (QS1), and the other end of the coil (M1) of the first contactor (KM1), the first self-reset button (SR1), the first gas pressure switch (PS1) ) and the normally closed contact (KM2-4) of the second contactor (KM2) are connected in series in sequence, the other end of the 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 comprises a coil (M2) of a second contactor (KM2), a second self-reset button (SR2), a second gas pressure switch (PS2), a normally closed contact (KM1-4) of the first contactor (KM1), a second incoming line switch (QS2), and a first normally open contact (KM2-1) of the second contactor (KM2); one end of the coil (M2) of the second contactor (KM2) is connected to the second incoming line switch (QS2), and the other end of the coil (M2) of the second contactor (KM2), the second self-reset button (SR2), and the second gas pressure switch (PS2 ) and the normally closed contact (KM1-4) of the first contactor (KM1) are connected in series in sequence, the other end of the 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 first normally open contact (KM2-1) of the second contactor (KM2); one end of the first normally open contact (KM2-1) of the second contactor (KM2) is connected to the local control box, and the other end of the first 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 lamp 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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