CN215298014U

CN215298014U - Emergency early warning signal collecting device for hydroelectric power plant

Info

Publication number: CN215298014U
Application number: CN202121825957.1U
Authority: CN
Inventors: 成舟
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-08-06
Filing date: 2021-08-06
Publication date: 2021-12-24
Anticipated expiration: 2031-08-06

Abstract

The utility model discloses a hydroelectric power plant emergency early warning signal collection device, the power distribution cabinet comprises a control cabinet, the bottom welding of switch board has the bottom plate, the inside of bottom plate is equipped with the empty gas detection survey chamber, the opening has all been seted up on the bottom plate side at empty gas detection survey chamber position, the bottom plate top of switch board one side is equipped with the earthquake detection case. The utility model discloses an utilize PLC controller and LCU to form solitary independent extra environment after connecting and collect the early warning function, the cost is lower, LCU early warning ability when the calamity takes place has been promoted, so that can in time send a signal to LCU and utilize LCU in time to remind the staff in the factory to withdraw and cut off the water and electricity route of all equipment when the calamity takes place, reduce equipment damage and casualties, for traditional artifical warning operation, can shorten emergency system's activation time greatly, the life potential safety hazard that manual opening equipment brought has been avoided, for withdrawing personnel, the escape time has been striven for, the security is stronger.

Description

Emergency early warning signal collecting device for hydroelectric power plant

Technical Field

The utility model relates to a hydroelectric power plant early warning technical field specifically is a hydroelectric power plant emergency early warning signal collection device.

Background

Hydroelectric power plants are comprehensive engineering facilities for converting water energy into electric energy, and are generally constructed in water source places such as natural rivers and lakes. During the construction and use of the hydroelectric power plant, natural disasters and equipment accidents need to be concerned in real time.

When severe natural disasters or large accidents happen in the past in a hydroelectric power plant, equipment operation is stopped manually, or the process is stopped automatically after a certain fault measuring point of the operating equipment reaches a peak value and is activated, so that the large accidents cannot be monitored, and the evacuation rate of workers is reduced due to the stop of the manually operated equipment, and the personal safety potential is caused; and if the plant equipment is not completely closed, secondary disasters can be caused to the surrounding environment due to equipment damage and water and electricity leakage caused by disasters, so that accidents are enlarged, and property loss of personnel and equipment is increased.

Disclosure of Invention

An object of the utility model is to provide a hydroelectric power plant emergency warning signal collection device to solve the problem that proposes in the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: an emergency early warning signal collecting device for a hydroelectric power plant comprises a control cabinet, wherein a bottom plate is welded at the bottom of the control cabinet, an air detection cavity is arranged inside the bottom plate, openings are formed in the side edges of the bottom plate at the position of the air detection cavity, an earthquake detection box is arranged at the top of the bottom plate at one side of the control cabinet, a noise detection box is arranged at the top of the control cabinet, an installation cavity is arranged inside the control cabinet, a PLC (programmable logic controller) is installed inside the installation cavity, a smoke sensor I is installed inside the installation cavity at one side of the PLC, the smoke sensor I is electrically connected with the PLC through a lead, a temperature sensor and a smoke sensor II are respectively installed inside the air detection cavity, the temperature sensor and the smoke sensor II are electrically connected with the PLC through leads, and an earthquake sensor is installed inside the earthquake detection box, seismic sensor passes through wire and PLC controller electric connection, the internally mounted of noise detection case has the decibel sensor, the decibel sensor passes through wire and PLC controller electric connection, it has sealing door to articulate on the switch board at installation cavity position, sealing door's front is equipped with the depressed part, the internally mounted of depressed part has the display, the display passes through wire and PLC controller electric connection, and articulates on the sealing door lateral wall of depressed part one side has transparent protection cover, the intermediate position department of bottom plate bottom is equipped with the spliced pole, the bilateral symmetry of bottom plate lateral wall has a pair of connecting plate, demountable installation has the supporting component on the bottom plate.

Preferably, the supporting component includes the multistage concatenation post that is connected with the spliced pole, the multistage concatenation post connects gradually end to end, the both ends of concatenation post all are equipped with the flange that mutual concatenation was used, the bottom of spliced pole is equipped with the flange with concatenation post looks adaptation, and there is the inserted bar bottom of bottom concatenation post through flange joint, and the bottom of inserted bar is bullet head form.

Preferably, the connecting plate is provided with mounting holes which are matched with flanges at the end face positions of the splicing columns and penetrate through the connecting plate at equal intervals in an annular shape.

Preferably, the PLC controller is connected to a liquid level sensor disposed outside through a wire.

Preferably, the top of bottom plate is installed and is extended to the warning light of switch board top high position department, the warning light passes through the wire and is connected with the PLC controller electricity.

Preferably, a heat insulation plate used for installing the temperature sensor and the smoke sensor is arranged in the air detection cavity, and the heat insulation plate is arranged in a grid plate shape.

Preferably, a button is arranged on the display and is electrically connected with the PLC through a wire.

Preferably, the opening part is provided with a grid net.

Compared with the prior art, the beneficial effects of the utility model are that: the utility model discloses an utilize PLC controller external decibel sensor, smoke transducer two, seismic sensor, temperature sensor and level sensor, and utilize optical network to connect PLC controller and LCU and form independent additional environment collection early warning function alone, the cost is lower, LCU's early warning ability when the calamity takes place has been promoted, so that can in time send the signal to LCU and utilize LCU in time to remind the staff in the factory to withdraw and cut off the water and electricity route of all equipment when the calamity takes place, reduce equipment damage and casualties, relative to traditional manual warning operation, can greatly shorten emergency system's start-up time, avoid the life potential safety hazard that manual opening equipment brought, strive for the time of fleing for the personnel of evacuating, the security is stronger, on the other hand the utility model discloses variably possess the function of more assembly fixed mode, the indoor and outdoor floor or the indoor and outdoor wall can be conveniently installed and fixed for use, and the actual use effect is good.

Drawings

FIG. 1 is a schematic view of the internal structure of the utility model in a front view under a fixed ground state;

FIG. 2 is a schematic view of the ground of the present invention in a front view;

fig. 3 is the utility model discloses a structural diagram is overlooked under the wall fixed state.

In the figure: 1. a PLC controller; 2. a control cabinet; 3. a noise detection box; 4. a decibel sensor; 5. a warning light; 6. a first smoke sensor; 7. a mounting cavity; 8. an air detection chamber; 9. a seismic sensor; 10. an earthquake detection box; 11. a connecting plate; 12. a second smoke sensor; 13. a base plate; 14. splicing the columns; 15. inserting a rod; 16. connecting columns; 17. a temperature sensor; 18. an opening; 19. a heat insulation plate; 20. a sealing door; 21. a recessed portion; 22. a display; 23. a transparent protective cover.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-3, the present invention provides an embodiment: an emergency early warning signal collecting device for a hydroelectric power plant comprises a control cabinet 2, wherein a bottom plate 13 is welded at the bottom of the control cabinet 2, an air detection cavity 8 is arranged inside the bottom plate 13, an external air environment early warning signal source for an LCU (liquid crystal unit) of the hydroelectric power plant can be obtained after components used for air monitoring are additionally arranged inside the air detection cavity 8, such as air early warning generated in a fire temperature environment and a smoke environment, openings 18 are formed in the side edges of the bottom plate 13 at the position of the air detection cavity 8 and communicated with the external environment, a grid net is arranged at the position of the opening 18, an earthquake detection box 10 is arranged at the top of the bottom plate 13 at one side of the control cabinet 2, an external earthquake early warning signal source for the LCU of the hydroelectric power plant can be obtained after earthquake monitoring components are additionally arranged inside the earthquake detection box 10, a noise detection box 3 is arranged at the top of the control cabinet 2, an external noise bomb used for the LCU of the hydroelectric power plant can attack early warning signal source after sound monitoring components are additionally arranged inside the noise detection box 3, the interior of a control cabinet 2 is provided with a mounting cavity 7, a PLC (programmable logic controller) 1 is mounted in the mounting cavity 7, the PLC 1 is in network connection with an LCU (liquid Crystal Unit) of a power plant through an optical fiber network, a storage module is arranged in the PLC 1 and used for storing and recording monitoring values, a smoke sensor I6 is mounted in the mounting cavity 7 on one side of the PLC 1 and electrically connected with the PLC 1 through a lead, the smoke sensor I6 is used for leakage-proof automatic monitoring and use in the control cabinet 2 and avoiding the influence of leakage fire caused by equipment, a temperature sensor 17 and a smoke sensor II 12 are respectively mounted in an air detection cavity 8, the temperature sensor 17 and the smoke sensor II 12 are electrically connected with the PLC 1 through leads, a heat insulation plate 19 used for mounting the temperature sensor 17 and the smoke sensor II 12 is arranged in the air detection cavity 8, the heat insulating board 19 is arranged in a grid plate shape, the purpose of the heat insulating board 19 is to reduce the temperature influence generated by the operation of the equipment, thereby the detection of the air environment is more real and reliable, the earthquake sensor 9 is arranged in the earthquake detection box 10, the earthquake sensor 9 is electrically connected with the PLC controller 1 through a wire, the noise detection box 3 is internally provided with a decibel sensor 4, the decibel sensor 4 is electrically connected with the PLC controller 1 through a wire, the PLC controller 1 is connected with a liquid level sensor arranged outside through a wire, the liquid level sensor is used for detecting flood, a sealing door 20 is hinged on the control cabinet 2 at the position of the installation cavity 7, the front of the sealing door 20 is provided with a concave part 21, the display 22 is arranged in the concave part 21, the display 22 is electrically connected with the PLC controller 1 through a wire, a button is arranged on the display 22, the button is divided into a display 22 button used for man-machine interaction and a mechanical button used for manually controlling the sending an early warning signal to the PLC The button is electrically connected with the PLC 1 through a wire, a transparent protective cover 23 is hinged on the outer side wall of the sealing door 20 on one side of the depressed part 21, namely, when an emergency occurs, a mechanical button is operated for practical alarm control after the transparent protective cover 23 is manually opened, a warning lamp 5 extending to the position of height above the control cabinet 2 is installed at the top of the bottom plate 13, the warning lamp 5 is electrically connected with the PLC 1 through a wire, when data monitored by each detection component exceeds the maximum value preset in the PLC 1, a warning signal is generated to the LCU, the LCU executes a plant abandoning instruction according to signal input, the concrete plant abandoning operation of the LCU is divided into a water cut-off instruction, a power cut-off instruction and an escape instruction, the water cut-off instruction activates the 'emergency shutdown' program of all generator sets, and the action result is that the 'emergency shutdown' flow 'of the generator' can immediately jump a circuit breaker at the outlet of the generator to realize load shedding of the generator sets, then closing a main valve of a unit to realize water cut-off, activating action signals of all protection outlets of transformers belonging to a power station and activation action signals of all protection outlets of lines of the power station, which are communicated with a system power grid, of the power station by a power cut-off instruction, wherein the action results are that all circuit breakers connected with the transformers and the lines can be completely separated to realize power cut-off, and an escape instruction is to start a whole-plant escape alarm signal and automatically put into whole-plant accident illumination, wherein the specific models of all detection components in the application are detection components commonly used in the market, and can be randomly matched for use, and the invention aims to reduce the error and fault tolerance rate of signal input by using various detection components in a matching way, even in the same single device, each detection component can also be combined for use in various models, and the early warning effect is not easy to reduce due to the failure of the detection components, the factory abandoning operation is carried out when the detected numerical value of any one of the detection components reaches a preset numerical value, a connecting column 16 is arranged at the middle position of the bottom of a bottom plate 13 and used for ground installation, a pair of connecting plates 11 are symmetrically arranged on two sides of the outer side wall of the bottom plate 13, the connecting plates 11 are used for wall surface fixation, a supporting component is detachably installed on the bottom plate 13 and comprises a plurality of sections of splicing columns 14 connected with the connecting column 16, the specific length is changed along with the length of the splicing columns 14, the height of the bottom plate 13 is mainly convenient for artificial observation and operation, the plurality of sections of splicing columns 14 are sequentially connected end to end, two ends of each splicing column 14 are provided with flanges used for mutual splicing, the bottom end of the connecting column 16 is provided with a flange matched with the splicing column 14, the bottom of the bottom splicing column 14 is connected with an inserting rod 15 through a flange, the bottom end of the inserting rod 15 is in a bullet head shape, mounting holes matched with the flanges at the end positions of the splicing columns 14 are annularly and equidistantly penetrated through the connecting plates 11, when the connecting plate 11 is installed, the single-section splicing column 14 is used or multiple sections are selected according to actual conditions.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein.

Claims

1. The utility model provides a hydroelectric power plant emergency early warning signal collection device which characterized in that: the device comprises a control cabinet (2), a bottom plate (13) is welded at the bottom of the control cabinet (2), an air detection cavity (8) is arranged inside the bottom plate (13), an opening (18) is formed in the side edge of the bottom plate (13) at the position of the air detection cavity (8), an earthquake detection box (10) is arranged at the top of the bottom plate (13) on one side of the control cabinet (2), a noise detection box (3) is arranged at the top of the control cabinet (2), a mounting cavity (7) is arranged inside the control cabinet (2), a PLC (1) is arranged inside the mounting cavity (7), a smoke sensor I (6) is arranged inside the mounting cavity (7) on one side of the PLC (1), the smoke sensor I (6) is electrically connected with the PLC (1) through a wire, a temperature sensor (17) and a smoke sensor II (12) are respectively arranged inside the air detection cavity (8), the temperature sensor (17) and the smoke sensor II (12) are electrically connected with the PLC controller (1) through wires, the earthquake sensor (9) is arranged inside the earthquake detection box (10), the earthquake sensor (9) is electrically connected with the PLC controller (1) through wires, the noise detection box (3) is internally provided with a decibel sensor (4), the decibel sensor (4) is electrically connected with the PLC controller (1) through wires, a sealing door (20) is hinged on the control cabinet (2) at the position of the installation cavity (7), a concave part (21) is arranged on the front surface of the sealing door (20), a display (22) is arranged inside the concave part (21), the display (22) is electrically connected with the PLC controller (1) through wires, and a transparent protective cover (23) is hinged on the outer side wall of the sealing door (20) on one side of the concave part (21), the middle position department of bottom plate (13) bottom is equipped with spliced pole (16), the both sides symmetrical arrangement of bottom plate (13) lateral wall has a pair of connecting plate (11), demountable installation has supporting component on bottom plate (13).

2. A hydroelectric power generation plant emergency alert signal collection apparatus as recited in claim 1, wherein: the supporting component comprises a multi-section splicing column (14) connected with a connecting column (16), and is characterized in that the splicing column (14) is sequentially connected end to end, flanges used for mutual splicing are arranged at two ends of the splicing column (14), a flange matched with the splicing column (14) is arranged at the bottom end of the connecting column (16), an inserting rod (15) is connected to the bottom of the bottom end splicing column (14) through the flange, and the bottom end of the inserting rod (15) is in a bullet shape.

3. A hydroelectric power generation plant emergency alert signal collection apparatus as recited in claim 1, wherein: the connecting plate (11) is provided with annular mounting holes which are arranged at equal intervals and matched with flanges at the end surfaces of the splicing columns (14).

4. A hydroelectric power generation plant emergency alert signal collection apparatus as recited in claim 1, wherein: the PLC controller (1) is connected with a liquid level sensor arranged outside through a lead.

5. A hydroelectric power generation plant emergency alert signal collection apparatus as recited in claim 1, wherein: the warning light (5) that extend to switch board (2) top high position department are installed at the top of bottom plate (13), warning light (5) are connected through the wire and PLC controller (1) electricity.

6. A hydroelectric power generation plant emergency alert signal collection apparatus as recited in claim 1, wherein: and a heat insulation plate (19) used for installing a temperature sensor (17) and a smoke sensor II (12) is arranged in the air detection cavity (8), and the heat insulation plate (19) is arranged in a grid plate shape.

7. A hydroelectric power generation plant emergency alert signal collection apparatus as recited in claim 1, wherein: the display (22) is provided with a button, and the button is electrically connected with the PLC (1) through a wire.

8. A hydroelectric power generation plant emergency alert signal collection apparatus as recited in claim 1, wherein: a grid net is arranged at the position of the opening (18).