Integrated control box of mobile power generation equipment

Abstract

The utility model provides an integrated control box of mobile power generation equipment. The integrated control box comprises an upper box chamber, a middle box chamber and a busbar load junction box chamber, a synchronous control module is arranged in the upper box chamber, and a generator synchronous contactor, a generator main circuit breaker, a mains supply synchronous contactor and a current transformer are arranged in the middle box chamber; the synchronous control module and the generator synchronous contactor are connected with the diesel generator, the generator synchronous contactor is connected with the synchronous control module through a closing signal line and a feedback signal line, and the generator main circuit breaker is connected with the generator synchronous contactor; the front end of the busbar load terminal is provided with a power supply regulation and control unit. The integrated control box provided by the utility model can be directly applied to mobile power generation equipment, can be used as a standby power supply during commercial power maintenance, is convenient to construct a synchronous switching system with commercial power, and can carry out on-site wiring operation according to a designed circuit during on-site construction, the on-site operation is convenient and rapid, and the working safety of the mobile power generation equipment can be ensured.

Description

TECHNICAL FIELD

[0001] The utility model relates to diesel generating equipment field, especially a kind of integrated control box of mobile power generation equipment that can realize synchronous switching of diesel generator and commercial power. BACKGROUND

[0002] Mobile power generation equipment (such as mobile diesel generator) can be widely applied to construction site, large party, disaster site, mine, night activity place and other places needing temporary power supply at night, which can meet the needs of current large-scale rapid urban construction, enrich people's cultural life, meet the needs of mineral exploration and development and other industrial construction, social life needs, and can also be used as standby power when commercial power is maintained. Mobile diesel generator can be installed on the frame like container, or wheels are installed under the mobile diesel generator chassis to be moved to the maintenance construction site by trailer, when the commercial power network of a certain area needs to be maintained, mobile diesel generator can be conveniently connected to the commercial power supply network as standby power to supply power, avoiding the influence on the users of the area during commercial power network maintenance. The traditional mobile power generation equipment needs to additionally increase synchronous controller, commercial power synchronous contactor, current transformer and other electrical elements or modules required for grid connection when connecting with commercial network, and the connection of external cable and mobile generator is also relatively complicated, causing complex operation during on-site construction, and having certain safety risk. In addition, when mobile power generation equipment is used as standby power to supply power to user load, it is also crucial for the safety of mobile power generation equipment to ensure the consistency of the phase sequence of the output voltage of the power supply end and the phase sequence of the received voltage of the user load end.

[0003] Therefore, it is necessary to provide a mobile generator integrated control box that can realize synchronous switching of mobile generator and commercial power during commercial network maintenance, and consider the convenience of on-site operation and the safety of construction. SUMMARY

[0004] In view of the application requirements of prior art, the purpose of the utility model is to provide a mobile power generation equipment integrated control box, which can conveniently connect mobile power generation equipment and commercial cable during commercial power maintenance and realize functions such as synchronous comparison, synchronous closing, automatic adjustment of power generation output, so that on-site construction is more convenient.

[0005] Specifically, to achieve the purpose of the utility model, the utility model adopts the following technical solutions:

[0006] The utility power synchronization switching integrated control box is arranged on a mobile power generation equipment, the mobile power generation equipment comprises a box body, a diesel generator is arranged in the box body, the integrated control box is arranged on one side of the box body, and the integrated control box comprises an upper box chamber, a middle box chamber and a busbar load terminal box chamber; wherein the synchronization control module is arranged in the upper box chamber, the generator synchronization contactor, the generator main circuit breaker, the utility power synchronization contactor and the current transformer are arranged in the middle box chamber, and a plurality of busbar load terminal ends are arranged in the busbar load terminal box chamber; a power supply regulation and control unit is arranged at the front end of the busbar load terminal end, the power supply regulation and control unit comprises a circuit breaking control module and a closing switch module; the circuit breaking control module comprises a first circuit breaker and a second circuit breaker which are arranged in parallel, the diesel generator sends out electricity, the electricity flows into the first circuit breaker and the second circuit breaker through the input end of the circuit breaking control module, and then is output from the output end of the circuit breaking control module, the phase sequence of the input end of the first circuit breaker is opposite to that of the input end of the second circuit breaker, and the phase sequence of the output end of the first circuit breaker is opposite to that of the output end of the second circuit breaker; the synchronization control module comprises a working display screen, a generator working state key, a generator shutdown key, a generator Open / Close key, a manual operation key, a utility power working state key, a utility power Open / Close key and a generator starting key; the synchronization control module, the generator synchronization contactor and the diesel generator are connected, the generator synchronization contactor and the synchronization control module are connected through closing and feedback signal lines, and the generator main circuit breaker is connected with the generator synchronization contactor; the utility power input end is connected with the synchronization control module through a synchronization sampling conversion switching switch.

[0007] Preferably, the closing switch module comprises a first closing switch, a first opening switch, a second closing switch and a second opening switch, the first closing switch and the first opening switch are connected to the first circuit breaker and are used for closing and opening the first circuit breaker respectively, and the second closing switch and the second opening switch are connected to the second circuit breaker and are used for closing and opening the second circuit breaker respectively.

[0008] More preferably, a plurality of one-to-one corresponding indicator lights are arranged at the input end and the output end of the current control unit respectively, each indicator light corresponds to one phase, and whether the phase sequences are consistent is displayed through the consistency of the light and dark order or color change of the two groups of indicator lights.

[0009] More preferably, a first partition plate is arranged between the upper box chamber and the middle box chamber, a second partition plate is arranged between the middle box chamber and the busbar load terminal box chamber, and a plurality of wire holes for cables to pass through are arranged on the wall plate of the integrated control box and the first partition plate and the second partition plate.

[0010] Preferably, the mains synchronous contactor is connected to a mains input line, and is connected to the phase sampling conversion switch and the phase control module through closing and feedback signal lines; the mains synchronous contactor is connected to the bus load terminal after being connected to the output line of the generator main circuit breaker; and a bus parameter acquisition module is arranged between the bus load and the phase sampling conversion switch.

[0011] Preferably, the integrated control box is further provided with a generator start knob switch, and the phase sampling conversion switch and the generator start knob switch are electrically connected to the phase control module.

[0012] Preferably, the phase control module is provided with a plurality of indicator lights corresponding to each key.

[0013] Preferably, the phase control module is further provided with a plurality of function indication modules, including an alarm indication module, an abnormal operation warning indication module and an operation indication module.

[0014] Preferably, the bus parameter acquisition module is integrated on the mobile diesel generator, and when on-site maintenance is needed, the staff can operate after wiring according to the set circuit connection diagram; and when the maintenance is completed, the cable can be removed from the mobile diesel generator.

[0015] Preferably, a standardized cable quick connector is arranged at the interface of each module.

[0016] Preferably, the integrated control box is provided with a first cover plate and a second cover plate on the outside, the first cover plate corresponds to the upper chamber and the middle chamber, and the second cover plate corresponds to the bus load terminal box chamber, and a gap is left below the second cover plate for the cable to pass out.

[0017] Preferably, the first cover plate is provided with a ventilation mesh, and the inner side of the ventilation mesh is provided with a dust removal cloth.

[0018] The integrated control box can be directly applied to mobile power generation equipment, and serves as a standby power supply for realizing synchronous switching of commercial power during maintenance, and the integrated control box is provided with a phase control module, a mains synchronous contactor, a current transformer and other modules, so that a secondary or primary synchronous switching system can be conveniently constructed with commercial power, and during on-site construction, on-site wiring operation can be performed according to the designed circuit, so that synchronous switching of commercial power supply and generator power supply during commercial power line maintenance can be realized, and the on-site operation is convenient, fast and can ensure the safety of the mobile power generation equipment. BRIEF DESCRIPTION OF DRAWINGS

[0019] The foregoing and other objects, features and advantages of the present application will become apparent upon reference to the following detailed description taken in conjunction with the accompanying drawings, in which:

[0020] Figure 1 Fig. 4 shows a structural schematic diagram of a mobile power generation equipment with the integrated control box of the present application capable of realizing the simultaneous switching of commercial power;

[0021] Figure 2 Fig. 5 shows a structural schematic diagram of the integrated control box of the present application capable of realizing the simultaneous switching of commercial power;

[0022] Figure 3 Fig. 6 shows a circuit connection structural schematic diagram of the integrated control box of the present application capable of realizing the simultaneous switching of commercial power;

[0023] Figure 4 Fig. 7 shows a circuit structural schematic diagram of the circuit breaker control module of the power regulation unit in the integrated control box of the present application;

[0024] Figure 5 Fig. 8 shows a structural schematic diagram of a mobile power generation equipment with the integrated control box of the present application capable of realizing the simultaneous switching of commercial power (with a cover plate). DETAILED DESCRIPTION

[0025] According to the purposes and actual application requirements of the present application, the present application provides an integrated control box of a mobile power generation equipment capable of realizing the simultaneous switching of commercial power, which can be directly installed on the mobile power generation equipment to realize the simultaneous switching of the mobile power generation equipment and commercial power, and facilitate the power supply to the user load by the simultaneous switching of the mobile generator when the commercial power line is under maintenance, thereby avoiding the impact on the user's power consumption.

[0026] In combination with reference Figure 1 and Figure 2 to the drawings, the integrated control box 200 of the present application capable of realizing the simultaneous switching of commercial power is installed on a mobile power generation equipment, wherein the mobile power generation equipment comprises a box body 1, the inside of which is provided with a diesel generator, the integrated control box 200 of the present application capable of realizing the simultaneous switching of commercial power is arranged on one side of the box body 1, and the integrated control box 200 comprises an upper box chamber 201, a middle box chamber 202 and a busbar load terminal box chamber 40; wherein the upper box chamber 201 is provided with a simultaneous control module 100, the middle box chamber 202 is provided with a generator synchronous contactor 22, a generator main circuit breaker 24, a commercial power synchronous contactor 12 and a current transformer 14, and the busbar load terminal box chamber 40 is provided with a plurality of busbar load terminal ends 42; a power regulation unit 50 is arranged at the front end of the busbar load terminal ends 42, the power regulation unit comprises a circuit breaker control module 51 and a closing switch module 52; the circuit breaker control module 51 comprises a first circuit breaker 511 and a second circuit breaker 512 arranged in parallel (refer toFigure 4 ), the diesel generator sends out electricity through the input end of the circuit control module 51, and the electricity flows into the first circuit breaker 511 and the second circuit breaker 512, and then is output from the output end of the circuit control module 51, and the phase sequence of the input end of the first circuit breaker 511 is opposite to that of the input end of the second circuit breaker 512, and the phase sequence of the output end of the first circuit breaker 511 is opposite to that of the output end of the second circuit breaker 512; referring to Figure 3 , the synchronization control module 100 comprises a working display screen 106, a generator working state button 120, a generator shutdown button 122, a generator Open / Close button 123, a manual operation button 125, a city power working state button 110, a city power Open / Close button 113 and a generator start button 112.

[0027] In a preferred embodiment, the closing switch module 52 comprises a first closing switch, a first opening switch, a second closing switch and a second opening switch, the first closing switch and the first opening switch are connected to the first circuit breaker 511 and are used for closing and opening the first circuit breaker 511 respectively, and the second closing switch and the second opening switch are connected to the second circuit breaker 512 and are used for closing and opening the second circuit breaker 512 respectively.

[0028] In another preferred embodiment, as shown in Figure 2 , a first partition plate 204 is arranged between the upper box chamber 201 and the middle box chamber 202, a second partition plate 205 is arranged between the middle box chamber 202 and the busbar load terminal box chamber 40, and a plurality of wire holes 203 for cables to pass through are arranged on the wall plate of the integrated control box 2 and the first partition plate 204 and the second partition plate 205, so that the cables are conveniently routed and kept neat to avoid disordered connection of the cables.

[0029] Referring to Figure 3 , in the city power synchronization switching integrated control box 200 of the utility model, the synchronization control module 100, the generator synchronization contactor 22 and the diesel generator 20 in the mobile power generation equipment are connected, the generator synchronization contactor 22 and the synchronization control module 100 are connected through closing and feedback signal lines, and the generator main circuit breaker 24 is connected with the generator synchronization contactor 22; the input end of the city power 10 is connected with the synchronization control module 100 through the synchronization sampling conversion switching switch 30; the city power synchronization contactor 12 is arranged on the input line of the city power 10, the city power synchronization contactor 12 is connected with the synchronization sampling conversion switching switch 30, and is connected with the synchronization control module 100 through closing and feedback signal lines; the city power synchronization contactor 12 is connected with the connection end of the busbar load terminal box chamber 40 after the output line of the generator main circuit breaker 24 is converged; and the busbar parameter acquisition module (not shown) is arranged between the busbar load and the synchronization sampling conversion switching switch 30.

[0030] The utility model discloses an integrated control box 200 of realizing city power synchronous switching, synchronous control module 100 is used to receive data information and carries out analysis, sends voltage, frequency control signal, exports switch on and off command, exports protection alarm instruction, monitors voltage, current, water temperature, oil pressure and other key parameters, mobile power generation equipment is generally to adopt diesel generator, can output reliable ac for load use, the generator synchronous contactor 22 is controlled by synchronous control module 100, realizes the on-off of diesel generator output, the generator main circuit breaker 24 as the manual switch on the diesel generator output route, and the generator synchronous contactor is connected in series, through the manual switch, when the generator is disconnected, it has a safety guarantee, the synchronous sampling conversion switch 30 is switched through the change-over switch, and the sampling information is transmitted to the synchronous control module, and the synchronous control module judges the synchronous mode based on the sampling information.

[0031] The utility model discloses an integrated control box 200 of realizing city power synchronous switching, when the output power of the diesel generator with positive phase sequence flows into the circuit control module 51, through the switch on or switch off of the control first circuit breaker 511 and second circuit breaker 512, can make the power supply of circuit control module 51 output always keep positive phase sequence, thereby realize the phase sequence regulation and control of the power supply of diesel generator, effectively guarantee the safety and reliability of diesel generator work, reduce the time of manual adjustment user load end cable, improve work efficiency, especially for the same construction site needs to carry out round -robin maintenance to multiple branch city power network. In addition, in order to guarantee the safety of work, the auxiliary contact of first circuit breaker 511 and the first auxiliary contact of second circuit breaker 512 can be set as electrical interlock, avoid two circuit breakers switch on simultaneously. In addition, in a preferred embodiment, a plurality of one-to-one corresponding indicator lights are respectively arranged at the input end and the output end of current control unit 50, each indicator light corresponds to a phase, and the consistency of the phase sequence is intuitively understood by the on-off order or color change consistency of the two groups of indicator lights.

[0032] Referring to Figure 3 The utility model discloses an integrated control box 200 of realizing city power synchronous switching, synchronous control module 100 is used to receive data information and carries out analysis, sends voltage, frequency control signal, exports switch on and off command, exports protection alarm instruction, monitors voltage, current, water temperature, oil pressure and other key parameters, mobile power generation equipment is generally to adopt diesel generator, can output reliable ac for load use, the generator synchronous contactor 22 is controlled by synchronous control module 100, realizes the on-off of diesel generator output, the generator main circuit breaker 24 as the manual switch on the diesel generator output route, and the generator synchronous contactor is connected in series, through the manual switch, when the generator is disconnected, it has a safety guarantee, the synchronous sampling conversion switch 30 is switched through the change-over switch, and the sampling information is transmitted to the synchronous control module, and the synchronous control module judges the synchronous mode based on the sampling information.

[0033] In another preferred embodiment, the synchronous control module 100 has an indicator light 124 corresponding to each key, which can help the staff to understand the working status of each module and the current operating environment in real time, avoiding safety problems caused by misoperation.

[0034] In another preferred embodiment, the synchronous control module 100 is further provided with a plurality of function indication modules, such as an alarm indication module 103, an abnormal operation warning indication module 104, an operation indication module 105, and the like.

[0035] In another preferred embodiment, the busbar parameter acquisition module is also integrated on the mobile diesel generator, and when on-site maintenance is needed, the staff can operate after wiring according to the set circuit connection diagram, and the cable can be removed from the mobile diesel generator after the maintenance is completed.

[0036] Referring to Figure 5 As shown in the utility model discloses an integrated control box 200 of city power synchronous switching, comprising upper box chamber 201, middle box chamber 202, lower box chamber 203, busbar load wiring chamber 40, the synchronous control module 100, the power supply synchronous contactor 101, the current transformer 102, the first cover plate 206, the second cover plate 207, the ventilation screen 209 and the dust cloth 210.

[0037] In another preferred embodiment, the first cover plate 206 is provided with a ventilation screen 209, and the inner side of the ventilation screen 209 is provided with a dust cloth, which can not only play a role in dissipating heat for the internal electrical modules, but also can prevent dust from entering the interior of the integrated control box and causing damage to electronic components.

[0038] The integrated control box 200 of city power synchronous switching can be directly applied to mobile power generation equipment, so that it can be used as a standby power supply for city power maintenance to realize city power synchronous switching, and the integrated control box is provided with a synchronous control module, a city power synchronous contactor, a current transformer and the like, so that a secondary or primary synchronous switching system can be conveniently constructed with city power, and during on-site construction, on-site wiring operation can be performed according to the designed circuit to realize synchronous switching of city power supply and generator power supply during city power line maintenance, which is convenient and fast for on-site operation. Through the power supply regulation unit, the voltage output by the diesel generator and the voltage received by the user load end are always kept in positive phase sequence, so as to ensure the working safety of the mobile power generation equipment. The utility model is more efficient for multi-branch city power network maintenance, but it can also be applied to the case of on-site city power maintenance of only one branch, and can also improve the working efficiency and ensure the safety.

[0039] The utility model is not limited to the embodiments described, and those skilled in the art can still make some modifications or changes without departing from the spirit of the utility model, i.e., the disclosed range, so the protection scope of the utility model is limited to the range defined in the claims.

Claims

1. An integrated control box of a mobile power plant, provided on a mobile power plant, said mobile power plant including a box body in which a diesel engine is provided, characterized in that, The integrated control box is arranged on one side of the box body, and includes an upper box chamber, a middle box chamber and a busbar load terminal box chamber; wherein the upper box chamber is provided with a synchronization control module, the middle box chamber is provided with a generator synchronization contactor, a generator main circuit breaker, a commercial power synchronization contactor and a current transformer, and the busbar load terminal box chamber is provided with a plurality of busbar load terminal ends; a power supply regulation unit is arranged at the front end of the busbar load terminal end, the power supply regulation unit includes a circuit breaker control module and a closing switch module; the circuit breaker control module includes a first circuit breaker and a second circuit breaker arranged in parallel, diesel generator sends out electricity through the input end of the circuit breaker control module, and then flows into the first circuit breaker and the second circuit breaker, and then is output from the output end of the circuit breaker control module, the phase sequence of the input end of the first circuit breaker is opposite to that of the input end of the second circuit breaker, and the phase sequence of the output end of the first circuit breaker is opposite to that of the output end of the second circuit breaker; the synchronization control module includes a working display screen, a generator working state key, a generator shutdown key, a generator Open / Close key, a manual operation key, a commercial power working state key, a commercial power Open / Close key and a generator start key; the synchronization control module, the generator synchronization contactor and the diesel generator are connected, the generator synchronization contactor and the synchronization control module are connected through closing and feedback signal lines, and the generator main circuit breaker is connected with the generator synchronization contactor; the commercial power input end is connected with the synchronization control module through a synchronization sampling conversion switch.

2. An integrated control box for a mobile power plant as claimed in claim 1, characterised in that, The closing switch module includes a first closing switch, a first opening switch, a second closing switch and a second opening switch, the first closing switch and the first opening switch are connected to the first circuit breaker and are used for closing and opening the first circuit breaker respectively, and the second closing switch and the second opening switch are connected to the second circuit breaker and are used for closing and opening the second circuit breaker respectively.

3. An integrated control box for a mobile power plant as claimed in claim 2, characterised in that, A plurality of one-to-one corresponding indicator lights are arranged at the input end and the output end of the current control unit, each indicator light corresponds to one phase, and whether the phase sequence is consistent is displayed through the consistency of the light and dark order or color change of the two groups of indicator lights.

4. An integrated control box for a mobile power plant as claimed in claim 1, wherein, A first partition plate is arranged between the upper box chamber and the middle box chamber, a second partition plate is arranged between the middle box chamber and the busbar load terminal box chamber, and a plurality of wire holes for cables to pass through are arranged on the wall plate of the integrated control box and the first partition plate and the second partition plate.

5. An integrated control box for a mobile power plant as defined in claim 1, wherein, The commercial power synchronization contactor is connected to a commercial power input line, the commercial power synchronization contactor is connected with the synchronization sampling conversion switch, and is connected with the synchronization control module through closing and feedback signal lines; the commercial power synchronization contactor is connected with the busbar load terminal box chamber after the output line of the commercial power synchronization contactor and the generator main circuit breaker are connected in parallel; a busbar parameter acquisition module is arranged between the busbar load and the synchronization sampling conversion switch.

6. An integrated control box for a mobile power plant as defined in claim 1, wherein, A generator start knob switch is further arranged in the integrated control box, and the synchronization sampling conversion switch and the generator start knob switch are electrically connected with the synchronization control module.

7. An integrated control box for a mobile power plant as defined in claim 1, wherein, The synchronous control module is further provided with a plurality of function indication modules, including an alarm indication module, an abnormal work warning indication module and a running indication module.

8. An integrated control box for a mobile power plant as claimed in claim 5, characterised in that, The busbar parameter acquisition module is also integrated on the mobile diesel generator, so that when on-site maintenance is needed, the staff can operate after wiring according to the set circuit connection diagram, and the cable can be removed from the mobile diesel generator after the maintenance is completed.

9. An integrated control box for a mobile power plant as defined in claim 1, wherein, The integrated control box is provided with a first cover plate and a second cover plate on the outside, the first cover plate corresponds to the upper chamber and the middle chamber, and the second cover plate corresponds to the busbar load terminal box chamber, and a gap is left below the second cover plate for the cable to pass out.

10. An integrated control box for a mobile power plant as claimed in claim 9, characterised in that, The first cover plate is provided with a ventilation mesh plate, and the inner side of the ventilation mesh plate is provided with a dust removal cloth.

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