Test cabinet for control box of diesel generating set of nuclear power station

Abstract

The utility model relates to the technical field of generator detection, and discloses a nuclear power station diesel generating set control box test cabinet, which comprises a set control cabinet, an electrical protection cabinet, a speed synchronization cabinet, an excitation cabinet, a power supply cabinet and a base arranged at the bottom of the power supply cabinet, and the front end of the base is fixedly connected with an auxiliary support sleeve plate. According to the utility model, the pedestal, the auxiliary supporting sleeve plate, the two adjusting plates, the plurality of first universal wheels and the plurality of second universal wheels form a multifunctional test supporting device, and then the multifunctional test supporting device is combined with a unit control cabinet, an electrical protection cabinet, a speed synchronization cabinet, an excitation cabinet and a power supply cabinet for use; according to the utility model, the extension test use of the unit control cabinet, the electrical protection cabinet, the speed synchronization cabinet, the excitation cabinet and the power supply cabinet can be satisfied, and the unit control cabinet, the electrical protection cabinet, the speed synchronization cabinet, the excitation cabinet and the power supply cabinet can be stored and moved in the idle process of the unit control cabinet, the electrical protection cabinet, the speed synchronization cabinet, the excitation cabinet and the power supply cabinet.

Description

TECHNICAL FIELD

[0001] The utility model relates to generator detection technical field, concretely is a nuclear power station diesel generating set control box test cabinet. BACKGROUND

[0002] The diesel generating set is the steel whole that the diesel engine is powered, the configuration generator, control screen, public base and other components, and because the diesel generating set has the advantages such as quick and stable starting performance, its use range is very extensive, and is applied in city emergency, nuclear power station and other industries.

[0003] And to ensure the operation effect of the diesel generating set, the prior art usually carries out the test run test after the diesel generating set is installed, but the test run test includes various equipment such as unit control cabinet, speed synchronization cabinet, excitation cabinet, electrical protection cabinet and power cabinet, and the connection operation of one by one and independence causes the problems of installation trouble, complex operation and low work efficiency of workers, and the fundamental reason is that the platform device for centralized use of test run test equipment is also lacked in the prior art, therefore, aiming at the problems existing in the test run test of the diesel generating set, the applicant will provide a nuclear power station diesel generating set control box test cabinet. UTILITY MODEL CONTENTS

[0004] In view of the deficiencies of the prior art, the utility model provides a nuclear power station diesel generating set control box test cabinet, which solves the problems raised in the above background art.

[0005] The utility model provides the following technical scheme: a nuclear power station diesel generating set control box test cabinet, including unit control cabinet, electrical protection cabinet, speed synchronization cabinet, excitation cabinet, power cabinet, the base that installs in the bottom of power cabinet, the front end of base is fixedly connected with auxiliary support sleeve board, both sides in auxiliary support sleeve board are all equipped with adjusting plate through pin shaft, unit control cabinet and electrical protection cabinet are installed on the front end surface of one adjusting plate, speed synchronization cabinet and excitation cabinet are installed on the front end surface of another adjusting plate, and two adjusting plates can rotate back and forth and adjust under the support of respective corresponding pin shaft in the both sides of auxiliary support sleeve board;

[0006] The top of two adjusting plates and the both sides of the top of auxiliary support sleeve board are both provided with limiting assembly, the bottom of base is installed with first universal wheel, the bottom of two adjusting plates is all installed with second universal wheel, and the bottom surface of first universal wheel and the bottom surface of second universal wheel are coplanarly arranged.

[0007] In addition, the both sides of the rear end structure of auxiliary support sleeve board are fixedly connected with reinforcing plates, one end of reinforcing plate is fixedly connected on the surface of the front end of base, and the structural strength of auxiliary support sleeve board is improved.

[0008] The two adjusting plates are made of iron material, electromagnets capable of magnetically connecting the adjusting plates are arranged on the two sides of the auxiliary support sleeve plate, the magnetic attraction surface of the electromagnet is arranged in the same plane with the surface of the auxiliary support sleeve plate, and the stability of the adjusting plate after storage and use is further improved.

[0009] The four second universal wheels are arranged at four corners of the bottom of the base, and the eight first universal wheels are arranged on the bottom of the two adjusting plates, so that the overall device has flexible movement conditions.

[0010] The unit control cabinet is connected with the electrical protection cabinet through a control signal line, the speed synchronization cabinet is connected with the excitation cabinet through a control signal line, the power supply cabinet is electrically connected with the unit control cabinet, the electrical protection cabinet, the speed synchronization cabinet and the excitation cabinet through wires, the unit control cabinet is used for realizing the safety level logic control function of the diesel generator set, including emergency start and stop, local start and stop, protection stop function, manual and automatic start and stop function of the safety level auxiliary system auxiliary machine, the electrical protection cabinet is used for measuring and displaying the electrical parameters of the diesel generator, and realizes the generator electrical protection function, fault alarm, the speed synchronization cabinet is used for realizing the speed control, overspeed protection and power grid synchronization function of the diesel engine, so that the stability of the rotating speed and load capacity of the unit under load disturbance is ensured, automatic or manual frequency and pressure adjustment of the diesel generator set during synchronization is realized, and remote synchronization test and remote synchronization function are realized, the excitation cabinet is used for automatically controlling the output voltage of the generator, manually adjusting the voltage, setting the excitation current and power factor, and realizing the difference adjustment function and emergency start and rapid pressure building function during grid operation, and the power supply cabinet is used for providing power supply for each equipment of the diesel generator set, so that the safe operation of the diesel generator set is realized.

[0011] The two limiting assemblies each comprise a limiting sleeve plate and a T-shaped screw rod, the middle part of the limiting sleeve plate is a convex plate structure and is connected to the top of the pin shaft sleeved in the corresponding adjusting plate, thread holes are formed in the two sides of the top of the auxiliary support sleeve plate, an arc groove is formed in the limiting sleeve plate, one end of the T-shaped screw rod penetrates through the arc groove and is threadedly connected in the corresponding thread hole, and the limiting sleeve plate and the auxiliary support sleeve plate are clamped and limited.

[0012] The bottom surfaces of the two limiting sleeve plates are connected with the top surface of the auxiliary support sleeve plate, the stability of the rotating movement of the adjusting plate is improved, and a friction groove is formed in the surface of the other end of the T-shaped screw rod, so that force can be conveniently applied by screwing.

[0013] Compared with the prior art, the utility model has the following beneficial effects:

[0014] 1. The utility model discloses a base, auxiliary support sleeve board, two adjusting plates and multiple first universal wheel, multiple second universal wheel are set up and constitute the multifunctional test support device, and then with unit control cabinet, electrical protection cabinet, speed synchronization cabinet, excitation cabinet and power cabinet combination uses after, can satisfy unit control cabinet, electrical protection cabinet, speed synchronization cabinet, excitation cabinet and power cabinet extension test use outside, also can in unit control cabinet, electrical protection cabinet, speed synchronization cabinet, excitation cabinet and power cabinet idle process, can store and remove unit control cabinet, electrical protection cabinet, speed synchronization cabinet, excitation cabinet and power cabinet, and the use is flexible and practical.

[0015] 2. The utility model discloses a limiting component, with above-mentioned test support device, unit control cabinet, electrical protection cabinet, speed synchronization cabinet, excitation cabinet and power cabinet further combination uses after, can carry out multiple location to the storage state's two adjusting plates, improves the stability of whole device use. ACCURACY OF DRAWINGS

[0016] Figure 1 It is the front view schematic diagram of the utility model structure;

[0017] Figure 2 It is the rear view schematic diagram of the utility model structure;

[0018] Figure 3 It is the overhead view schematic diagram of the utility model structure;

[0019] Figure 4 It is the utility model structure limiting component's enlarged schematic view;

[0020] Figure 5 It is the storage use schematic diagram of the utility model structure adjusting plate.

[0021] In the drawing: 1, unit control cabinet;2, electrical protection cabinet;3, speed synchronization cabinet;4, excitation cabinet;5, power cabinet;6, base;7, auxiliary support sleeve board;8, adjusting plate;9, limiting component;91, limiting sleeve board;92, T type screw;10, first universal wheel;11, second universal wheel;12, electromagnet. DETAILED DESCRIPTION

[0022] The technical scheme in the embodiments of the utility model will be described clearly and completely below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model and not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of the utility model.

[0023] Please refer to Figures 1-5A kind of nuclear power plant diesel generator set control box test cabinet, including unit control cabinet 1, electrical protection cabinet 2, speed synchronization cabinet 3, excitation cabinet 4, power cabinet 5, base 6 installed in the bottom of power cabinet 5, unit control cabinet 1 is connected electrical protection cabinet 2 by control signal line, speed synchronization cabinet 3 is connected excitation cabinet 4 by control signal line, power cabinet 5 is electrically connected with unit control cabinet 1, electrical protection cabinet 2, speed synchronization cabinet 3, excitation cabinet 4 by wire respectively, unit control cabinet 1 is used to realize the safety level logic control function of diesel generator set, including the emergency start-stop of unit, local start-stop, protection shutdown function, safety level auxiliary system auxiliary machine manual, automatic start-stop function, electrical protection cabinet 2 is used to measure and display the function of the electrical parameters such as current, voltage, frequency, power factor, active power, reactive power of diesel generator, complete generator electrical protection function, fault alarm, speed synchronization cabinet 3 is used to realize the speed control of diesel engine, overspeed protection, grid synchronization function, guarantee the stability of rotating speed frequency and load capacity of unit under load disturbance, realize the automatic or manual frequency regulation and pressure regulation operation of diesel generator set during synchronization, to realize remote synchronization test and remote synchronization function, excitation cabinet 4 is used for automatic control to generator output voltage, manual voltage adjustment, excitation current and power factor setting, and difference adjustment function and emergency start-up fast pressure building function during grid operation, power cabinet 5 is used to provide power supply for each equipment of diesel generator set, to realize the safe operation of diesel generator set;

[0024] The front end of base 6 is fixedly connected with auxiliary support sleeve plate 7, the rear end structure of auxiliary support sleeve plate 7 is fixedly connected with reinforcing plate on both sides, one end of reinforcing plate is fixedly connected on the surface of the front end of base 6, the structural strength of auxiliary support sleeve plate 7 is improved, the inside of both sides of auxiliary support sleeve plate 7 is sleeved with adjusting plate 8 through pin shaft, unit control cabinet 1 and electrical protection cabinet 2 are installed on the front end surface of one adjusting plate 8, speed synchronization cabinet 3 and excitation cabinet 4 are installed on the front end surface of another adjusting plate 8, and the two adjusting plates 8 can rotate back and forth in the inside of both sides of auxiliary support sleeve plate 7 under the support of corresponding pin shafts respectively;

[0025] The top of two adjusting plates 8 and the top of both sides of auxiliary support sleeve plate 7 are provided with limiting assembly 9, two limiting assembly 9 are composed of limiting sleeve plate 91 and T-shaped screw 92, the middle part of limiting sleeve plate 91 is protruding plate structure and is connected on the top of pin shaft sleeved in corresponding adjusting plate 8, the top of both sides of auxiliary support sleeve plate 7 is provided with threaded hole, the inside of limiting sleeve plate 91 is provided with optimal arc groove, one end of T-shaped screw 92 penetrates optimal arc groove and is screw-connected in corresponding threaded hole, limiting sleeve plate 91 and auxiliary support sleeve plate 7 are clamped and limited, the bottom surface of two limiting sleeve plates 91 is connected with the top surface of auxiliary support sleeve plate 7, the stability of rotating movement of adjusting plate 8 is improved, the surface of the other end of T-shaped screw 92 is provided with friction groove, which is convenient for screwing and force exertion;

[0026] The bottom of the base 6 is provided with a first universal wheel 10, and the bottom of each of the two adjusting plates 8 is provided with a second universal wheel 11. The bottom surface of the first universal wheel 10 is coplanar with the bottom surface of the second universal wheel 11. The second universal wheels 11 are arranged at four corners of the bottom of the base 6, and the first universal wheels 10 are arranged in four groups of eight on the bottom of the two adjusting plates 8, so as to ensure that the overall device has flexible moving conditions.

[0027] The two adjusting plates 8 are made of iron, and the interiors of the two sides of the auxiliary supporting sleeve plate 7 are sleeved with electromagnets 12 capable of magnetically connecting the adjusting plates 8. The magnetic surface of the electromagnet 12 is coplanar with the surface of the auxiliary supporting sleeve plate 7, so as to further improve the stability of the adjusting plates 8 after storage and use.

[0028] Working principle: for the diesel generator set to be detected, the overall device can be moved to the detection position by using the plurality of first universal wheels 10 and the plurality of second universal wheels 11. Then, the electromagnets 12 are turned off and the T-shaped screw 92 is twisted and disassembled. Then, the two adjusting plates 8 are turned over, so that the two adjusting plates 8 and the front end of the auxiliary supporting sleeve plate 7 are in a horizontal state. Thus, the centralized storage of the unit control cabinet 1, the electrical protection cabinet 2, the speed synchronization cabinet 3, and the excitation cabinet 4 are sequentially expanded and arranged, which facilitates the subsequent connection of the nuclear power station diesel generator set. During the subsequent test run, the unit control cabinet 1 is used to realize the safety level logic control function of the diesel generator set, including emergency start and stop, local start and stop, protection shutdown function, manual and automatic start and stop function of the safety level auxiliary system auxiliary machine, measurement and display function of the electrical parameters of the diesel generator, such as current, voltage, frequency, power factor, active power, and reactive power, to complete the generator electrical protection function and fault alarm. The speed synchronization cabinet 3 is used to realize the speed control, overspeed protection, and power grid synchronization function of the diesel engine, to ensure the stability of the speed frequency and load carrying capacity of the unit under load disturbance, to realize the automatic or manual frequency and voltage adjustment of the diesel generator set during synchronization, to realize the remote synchronization test and remote synchronization function. The excitation cabinet 4 is used to automatically control the output voltage of the generator, manually adjust the voltage, set the excitation current and power factor, and realize the difference adjustment function and emergency start rapid pressure building function during grid operation. The power supply cabinet 5 is used to provide power supply for each device of the diesel generator set, so as to realize the safe operation of the diesel generator set.

[0029] It is to be noted that, in the present text, relational terms such as first and second and the like can be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises", "comprising", or any other variations thereof, are intended to cover a non-exclusive inclusion such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but can also include other elements not expressly listed or inherent to such process, method, article, or apparatus. In the drawings of the present application, the filling patterns are only for distinguishing layers and do not have any other limitations.

[0030] While the embodiments of the present application have been shown and described, it is to be understood that the embodiments can be varied, modified, substituted and changed by those skilled in the art without departing from the principles and spirit of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A nuclear power plant diesel generator set control cabinet test cabinet, comprising a unit control cabinet (1), an electrical protection cabinet (2), a speed synchronization cabinet (3), an excitation cabinet (4), a power supply cabinet (5), and a base (6) installed at the bottom of the power supply cabinet (5), characterized in that: The front end of the base (6) is fixedly connected with an auxiliary support sleeve plate (7), the two sides of the auxiliary support sleeve plate (7) are both provided with an adjusting plate (8) through a pin shaft, the unit control cabinet (1) and the electrical protection cabinet (2) are installed on the front end surface of one adjusting plate (8), the speed synchronization cabinet (3) and the excitation cabinet (4) are installed on the front end surface of the other adjusting plate (8), and the two adjusting plates (8) can rotate back and forth in the two sides of the auxiliary support sleeve plate (7) under the support of the corresponding pin shafts. The top of the two adjusting plates (8) and the two sides of the top of the auxiliary support sleeve plate (7) are both provided with a limiting assembly (9), the bottom of the base (6) is provided with a first universal wheel (10), the bottom of the two adjusting plates (8) are both provided with a second universal wheel (11), and the bottom surface of the first universal wheel (10) and the bottom surface of the second universal wheel (11) are arranged in the same plane.

2. A nuclear power plant diesel generator control panel test cabinet according to claim 1, characterized in that: The two sides of the rear end structure of the auxiliary support sleeve plate (7) are both fixedly connected with a reinforcing plate, and one end of the reinforcing plate is fixedly connected to the surface of the front end of the base (6).

3. A nuclear power plant diesel generator control panel test cabinet according to claim 1, characterized in that: The two adjusting plates (8) are both made of iron material, the interiors of the two sides of the auxiliary support sleeve plate (7) are both provided with an electromagnet (12) which can be magnetically connected with the adjusting plate (8), and the magnetic surface of the electromagnet (12) is arranged in the same plane with the surface of the auxiliary support sleeve plate (7).

4. A nuclear power plant diesel generator control panel test cabinet according to claim 1, characterized in that: The number of the second universal wheels (11) is four, and the four second universal wheels (11) are installed at the four corners of the bottom of the base (6), and the number of the first universal wheels (10) is eight, and the eight first universal wheels (10) are distributed on the bottoms of the two adjusting plates (8) in four groups.

5. A nuclear power plant diesel generator control panel test cabinet according to claim 1, characterized in that: The unit control cabinet (1) is connected with the electrical protection cabinet (2) through a control signal line, the speed synchronization cabinet (3) is connected with the excitation cabinet (4) through a control signal line, and the power cabinet (5) is electrically connected with the unit control cabinet (1), the electrical protection cabinet (2), the speed synchronization cabinet (3) and the excitation cabinet (4) through wires.

6. A nuclear power plant diesel generator control panel test cabinet according to claim 1, characterized in that: The two limiting assemblies (9) are both composed of a limiting sleeve plate (91) and a T-shaped screw rod (92), the middle part of the limiting sleeve plate (91) is a protruding plate structure and is connected to the top of the pin shaft sleeved in the corresponding adjusting plate (8), the two sides of the top of the auxiliary support sleeve plate (7) are both provided with threaded holes, the interior of the limiting sleeve plate (91) is provided with a cam groove, one end of the T-shaped screw rod (92) penetrates through the cam groove and is threadedly connected in the corresponding threaded hole, and the limiting sleeve plate (91) and the auxiliary support sleeve plate (7) are clamped and limited.

7. A nuclear power plant diesel generator control panel test cabinet according to claim 6, characterised in that: The bottom surface of the two limiting sleeve plates (91) is connected with the top surface of the auxiliary support sleeve plate (7) in a matched mode, and the surface of the other end of the T-shaped screw rod (92) is provided with a friction groove.

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