CN112816808B

CN112816808B - Power monitoring system of power plant

Info

Publication number: CN112816808B
Application number: CN202011564444.XA
Authority: CN
Inventors: 秦志勇
Original assignee: Huadian United Beijing Power Engineering Co ltd
Current assignee: Huadian United Beijing Power Engineering Co ltd
Priority date: 2020-12-25
Filing date: 2020-12-25
Publication date: 2022-09-06
Anticipated expiration: 2040-12-25
Also published as: CN112816808A

Abstract

The utility model relates to a power monitoring system of power plant relates to electric power system's field, and it includes power generating equipment and detection device, is connected with the terminal box between power generating equipment and the detection device, installs radiator unit in the terminal box, and radiator unit includes the heating panel of being connected with the terminal box, is equipped with the spliced eye on the terminal box outer wall, and the heating panel is pegged graft with the spliced eye and the heating panel is kept away from the one end of terminal box and is located the terminal box outside. The temperature of the junction box is increased, the possibility that the junction box is damaged due to the fact that heat in the junction box cannot be dissipated is reduced, and the service life of the junction box is prolonged.

Description

Power monitoring system of power plant

Technical Field

The application relates to the field of power systems, in particular to a power monitoring system of a power plant.

Background

Junction boxes serve as an important part of power plants, and the junction boxes mainly serve to connect power generation modules and loads, draw current generated by the modules and generate power.

In the related art, the junction box is a consumable product and is usually scrapped after being used for about one year, and one of reasons for scrapping is that electronic components in the junction box generate a large amount of heat in a working state and cannot be well dissipated, so that the service life is greatly shortened.

According to the related art, heat is transferred to the box body through the inner portion of the box body, and then the box body exchanges heat with outside air, and the inventor thinks that the heat dissipation effect of the heat dissipation mode is poor.

Disclosure of Invention

In order to improve the radiating effect in the terminal box use, this application provides a power plant electric power monitoring system.

The application provides a power plant electric power monitoring system adopts following technical scheme:

the utility model provides a power monitoring system of power plant, includes power generating equipment and detection device, is connected with the terminal box between power generating equipment and the detection device, installs radiator unit in the terminal box, and radiator unit includes the heating panel of being connected with the terminal box, is equipped with the spliced eye on the terminal box outer wall, and the heating panel is pegged graft with the spliced eye and the heating panel one end of keeping away from the terminal box is located the terminal box outside.

Through adopting above-mentioned technical scheme, carry out the line through the terminal box between power generation facility and the check out test set, in the terminal box use, components and parts can produce the heat, can spread the heat in the terminal box to the outside through the heating panel to improve the speed that the terminal box temperature reduced, reduced because of the unable effluvium of heat in the terminal box causes the terminal box to take place the possibility of damaging, prolonged the life of terminal box.

Optionally, the junction box includes an upper cover and a base, the upper cover is buckled with the base and is fixedly connected with the base, the insertion hole is located on the side of the upper cover far away from the base, and the fan is fixedly connected to the side of the upper cover far away from the base.

Through adopting above-mentioned technical scheme, when the fan starts, can accelerate the flow of terminal box surrounding air to the diffusion of terminal box heat has been accelerated.

Optionally, one end of the heat dissipation plate, which is far away from the junction box, is detachably connected with a horizontally placed connecting plate.

Through adopting above-mentioned technical scheme, the connecting plate is located the terminal box top, and the connecting plate can blow off the wind of keeping away from the terminal box direction to the fan and block to make the wind direction terminal box direction diffusion of this direction, thereby improved the fan and bloied, the effect of cooling to the terminal box, simultaneously, the connecting plate can block the rainwater, has reduced the rainwater and has fallen on the terminal box surface and cause the terminal box to take place the possibility of corrosion, has prolonged the life of terminal box.

Optionally, the side wall of the periphery of the connecting plate is fixedly connected with a baffle plate, the baffle plate is provided with a plurality of water flow holes, and the side wall of the connecting plate at the bottom of each water flow hole is also fixedly connected with an inclined plate for guiding water flow.

By adopting the technical scheme, when precipitation is generated, the cavity formed between the baffle and the connecting plate can collect rainwater, when the liquid level of the collected rainwater is higher than that of the drain hole, the rainwater passes through the drain hole and flows out along the inclined plate, when the precipitation is finished, water in the cavity is slowly evaporated, and heat at the junction box can be absorbed in the evaporation process, so that the purpose of cooling the junction box is achieved.

Optionally, the upper surface of the connecting plate, which is far away from the junction box, is fixedly connected with a guide plate with a convex middle, and the periphery of the guide plate is fixedly connected with the baffle.

By adopting the technical scheme, water in the cavity can flow to the water flowing hole along the guide plate, so that the possibility of storing a large amount of water in the cavity is reduced, and the possibility of freezing the water in the cavity in winter and other seasons with lower temperature is reduced.

Optionally, a temperature sensor is installed in the junction box, the temperature sensor is electrically connected with a second controller, and the second controller is electrically connected with a motor of the fan.

Through adopting above-mentioned technical scheme, temperature sensor can detect the temperature in the terminal box, and when the temperature in the terminal box that temperature sensor detected was lower, the fan stall of second controller control fan to the loss of electric quantity has been reduced.

Optionally, a heat-conducting plate is fixedly connected in the upper cover, a first spring is fixedly connected in the heat-conducting plate, and the other end of the first spring is fixedly connected with the heat-dissipating plate.

Through adopting above-mentioned technical scheme, when the rainfall that produces is great, the rainwater volume in the cavity that forms between baffle and the connecting plate is more, and the connecting plate is pressed and is moved the first spring of heating panel extrusion for first spring shrink, the heating panel moves in to the terminal box, has reduced the heating panel and has been located the outside volume of terminal box, thereby to the corruption of heating panel when having reduced heavy rainfall, has prolonged the life of heating panel.

Optionally, a waterproof sealing layer is arranged on the hole wall of the inserting hole, and the waterproof sealing layer is abutted against the side wall of the heat dissipation plate.

Through adopting above-mentioned technical scheme, improved the leakproofness of heating panel with plug hole department, when the heating panel slided from top to bottom along plug hole department, waterproof sealing layer can reduce the possibility that moisture passes through the plug hole and gets into in the terminal box.

In summary, the present application includes at least one of the following beneficial technical effects:

1. the speed of reducing the temperature of the junction box is improved, the possibility of damaging the junction box due to the fact that heat in the junction box cannot be dissipated is reduced, and the service life of the junction box is prolonged;

2. the connecting plate can block the wind blown by the fan and far away from the direction of the junction box and enable the wind in the direction to diffuse towards the direction of the junction box, so that the effects of blowing and cooling the junction box by the fan are improved, meanwhile, the connecting plate can block rainwater, the possibility that the junction box is rusted due to the fact that the rainwater falls on the surface of the junction box is reduced, and the service life of the junction box is prolonged;

3. when the rainfall amount is more, the connecting plate presses the heat dissipation plate to extrude the first spring, the heat dissipation plate moves in the junction box, and the size of the heat dissipation plate outside the junction box is reduced, so that the corrosion to the heat dissipation plate in heavy rainfall is reduced, and the service life of the heat dissipation plate is prolonged.

Drawings

Fig. 1 is a circuit block diagram of a power monitoring system according to an embodiment of the present application.

Fig. 2 is a schematic view of a junction box structure according to an embodiment of the present application.

Fig. 3 is a cross-sectional view of an upper cover according to an embodiment of the present application.

FIG. 4 is a schematic view of a fixing plate structure embodying the embodiment of the present application.

FIG. 5 is a schematic view of a tilt plate structure embodying embodiments of the present application. A (c)

Fig. 6 is a circuit block diagram of a fan control according to an embodiment of the present application.

Description of reference numerals: 1. a detection device; 2. a communication receiving device; 3. a first controller; 4. a UPS; 5. a display device; 6. an adjustment device; 7. a junction box; 71. a base; 72. an upper cover; 721. inserting holes; 722. a waterproof sealing layer; 73. a first bolt; 74. a fan; 75. a second controller; 76. a temperature sensor; 8. a heat conducting plate; 81. a heat dissipation plate; 811. a groove; 812. a second spring; 813. clamping a plate; 82. a first spring; 83. a connecting plate; 831. a fixing plate; 832. a second bolt; 833. a baffle plate; 8331. a water flowing hole; 834. an inclined plate; 835. a baffle.

Detailed Description

The present application is described in further detail below with reference to figures 1-6.

The embodiment of the application discloses power monitoring system of power plant. Referring to fig. 1, the power monitoring system of the power plant comprises a detection device 1, wherein the detection device 1 is electrically connected with a communication receiving device 2, the communication receiving device 2 is electrically connected with a first controller 3, the first controller 3 is electrically connected with a UPS4, the output end of the first controller 3 is electrically connected with a display device 5, and the output end of the first controller 3 is also electrically connected with a regulating device 6.

Equipment testing device 1 includes the environment monitoring subassembly, transformer determine module, high-voltage switch determine module and cable determine module, the environment monitoring includes temperature and humidity probe, smoke transducer, the position department that needs detected at the power plant is all installed to temperature and humidity probe and smoke transducer, transformer determine module includes that iron core ground current detects and the central point detects, high-voltage switch determine module includes the high-pressure wireless temperature measurement, SF6 density detection and SF6 environment measuring, cable determine module includes cable fault location, cable temperature detects and cable leakage detection.

The signal that detection device 1 will detect conveys to first controller 3 through communication receiving arrangement 2, each parameter value of power plant system normal operating has been preset in first controller 3, and show the testing result in real time through display device 4, first controller 3 includes storage module, storage module can store detection device 1's detection data, thereby show the operation record of equipment through display device 4, the convenience of staff's inspection equipment running state has been improved.

When the power supply of the first controller 3 is powered off, the UPS4 can supply power to the first controller 3, so that the first controller 3 can work normally, and the possibility that the power monitoring system of the power plant cannot work normally due to the failure of the power supply of the first controller 3 is reduced.

When the working parameters of the equipment detected by the detection device 1 are different from the normal working parameters of the equipment preset in the first controller 3, the adjusting device 6 adjusts the equipment.

Referring to fig. 1 and 2, the power plant includes a power generation device, the power generation device is connected to the detection device 1 through a wire, and the wire connected to the power generation device and the wire connected to the detection device 1 are connected through a junction box 7. The junction box 7 comprises a base 71 and an upper cover 72, the base 71 is buckled with the upper cover 72, first bolts 73 are inserted at four corners of the bottom surface of the base 71 far away from the upper cover 72, the first bolts 73 penetrate through the base 71 to be in threaded connection with the upper cover 72, and the junction box 7 further comprises a wire inlet pipe and a wire outlet pipe.

Referring to fig. 2 and 3, terminal box 7 is hollow structure, installs radiator unit in terminal box 7, and radiator unit includes heat-conducting plate 8, and heat-conducting plate 8 is fixed on upper cover 72 inner wall, is located electrical components's top, is connected with a plurality of heating panels 81 on the heat-conducting plate 8, a plurality of first springs 82 of fixedly connected with on the heat-conducting plate 8, and the other end and the fixed bottom of heating panel 81 of first spring 82 are connected, and first spring 82 constitutes for the metal material that the heat conductivity is good. The upper cover 72 is provided with inserting holes 721 the number of which is the same as that of the heat dissipation plates 81, the heat dissipation plates 81 are inserted into the inserting holes 721 in a one-to-one correspondence, and the heat dissipation plates 81 are inserted into the inserting holes 721 and then extend out of the upper cover 72, so that the heat dissipation plates 81 are in contact with the air outside the junction box 7.

Referring to fig. 4, one end of the heat dissipation plate 81 far away from the heat conduction plate 8 is detachably connected with a connection plate 83, the lower surface of the connection plate 83 near the upper cover 72 is connected with a plurality of pairs of fixing plates 831, the connection plate 83 and the fixing plate 831 are both made of metal materials with good heat conductivity, and the fixing plates 831 are integrally formed with the connection plate 83. The surface of the heat dissipation plate 81 far from the end of the upper cover 72 is abutted to the pair of fixing plates 831 respectively, the fixing plates 831 are inserted with second bolts 832, and the second bolts 832 pass through the fixing plates 831, the heat dissipation plate 81 and the fixing plates 831 in sequence to lock the heat dissipation plate 81 and the pair of fixing plates 831.

Referring to fig. 4 and 5, the peripheral side walls of the connecting plate 83 are fixedly connected with the baffles 833, the baffles 833 extend upwards along the connection portion with the connecting plate 83, the bottoms of the baffles 833 are provided with water flowing holes 8331, the peripheral side walls of the connecting plate 83 are also fixedly connected with inclined plates 834, and the baffles 833 and the inclined plates 834 are made of materials with good heat conductivity.

When the junction box 7 is used normally, heat generated by the components is transferred to the heat conducting plate 8, the heat conducting plate 8 transfers the heat to the heat dissipating plate 81 through the first spring 82, and the heat dissipating plate 81 extends out of the upper cover 72 and then contacts with air, so that the heat dissipating effect on the junction box 7 is achieved.

Referring to fig. 4 and 6, two fans 74 are fixedly attached to a surface of the upper cover 72, and the fans 74 are horizontally disposed along the surface of the upper cover 72. The fan 74 is electrically connected to a second controller 75, the second controller 75 is installed in the junction box 7, and when the second controller 75 controls the fan 74 to be started, the fan 74 rotates, so that the air at the upper cover 72 starts to flow, thereby increasing the speed of heat dissipation of the upper cover 72 and the heat dissipation plate 81. Meanwhile, the wind blown by the fan 74 bounces off the connecting plate 83 and blows toward the upper cover 72 and the heat dissipation plate 81, thereby improving the heat dissipation effect of the fan 74 on the upper cover 72 and the heat dissipation plate 81.

A temperature sensor 76 is installed in the terminal box 7, and the temperature sensor 76 is electrically connected to the second controller 75. When rainfall or the outside environment temperature is low, so that the heat dissipation effect of the junction box 7 is good, the temperature in the junction box 7 detected by the temperature sensor 76 is low, the temperature sensor 76 transmits a detected temperature electric signal to the second controller 75, and the second controller 75 controls the motor of the fan 74 to stop rotating, so that the waste of electric quantity is reduced.

Referring to fig. 5, a flow guiding plate 835 is fixedly connected to the upper surface of the connecting plate 83, the peripheral side walls of the flow guiding plate 835 are fixedly connected to the inner wall of the bottom of the blocking plate 833, and the middle of the flow guiding plate 835 is higher than the height of the fixed connection with the blocking plate 833. A cavity is formed between the connecting plate 83 and the four baffles 833, when rainfall occurs, rainwater can fall into the cavity and is stored through the cavity, and therefore the corrosion of the junction box 7 caused by the direct contact of the rainwater and the junction box 7 is relieved. When the water level stored in the cavity reaches the height of the water flow hole 8331, rainwater flows out along the inclined plate 834 through the water flow hole 8331.

Referring to fig. 3, when the precipitation amount is large, along with the rainwater amount stored in the cavity is more and more, the rainwater is subjected to gravity, so that the connecting plate 83 drives the heat dissipation plate 81 to downwards extrude the first spring 82, the first spring 82 is contracted, and the heat dissipation plate 81 passes through the insertion hole 721 to move towards the inside of the junction box 7, so that the length of the heat dissipation plate 81 exposed outside the junction box 7 is reduced, and the possibility that the precipitation causes the corrosion of the heat dissipation plate 81 when the precipitation amount is large is reduced.

After the precipitation is finished, the rainwater continues to flow out of the cavity along the water flow holes 8331, and heat around the junction box 7 and the heat dissipation plate 81 can be absorbed along with the evaporation of the rainwater in the flowing process of the rainwater, so that the heat dissipation speed of the junction box 7 is improved. Meanwhile, as the rainwater in the cavity runs off and evaporates, the first spring 82 extends to push the heat dissipation plate 81 to move along the insertion hole 721 to the outside of the junction box 7, so that the contact area of the heat dissipation plate 81 with the outside is increased. The hole wall of the insertion hole 721 is provided with the waterproof sealing layer 722, the waterproof sealing layer 722 can be a sealing rubber ring, the sealing performance between the inside of the junction box 7 and the outside is improved through the waterproof sealing layer 722, and the possibility that moisture flows into the junction box 7 from the gap between the heat dissipation plate 81 and the insertion hole 721 is reduced.

The side wall of the heat dissipation plate 81 is provided with a groove 811, the groove bottom of the groove 811 is fixedly connected with a second spring 812, the other end of the second spring 812 is fixedly connected with a clamping plate 813, the groove wall of the bottom of the groove 811 is fixedly connected with a rotating seat, two sides of the clamping plate 813 are fixedly connected with rotating shafts, and the rotating shafts are rotatably connected with the rotating seat. When the terminal block 7 needs to be replaced after a long time use, the second bolt 832 is unscrewed so that the heat dissipation plate 81 is out of contact with the connection plate 83, and then the heat dissipation plate 81 is pressed down along the insertion hole 721.

When the heat dissipation plate 81 moves to the groove 811, the hole wall of the insertion hole 721 presses the card plate 813, so that the card plate 813 presses the second spring 812 to move toward the groove bottom of the groove 811. After the clamping plate 813 passes through the inserting hole 721, the second spring 812 pushes the clamping plate 813 to move in the direction away from the bottom of the groove, so that the clamping plate 813 is abutted against the inner wall of the upper cover 72 at the inserting hole 721, and the heat dissipation plate 81 is locked at the position in the upper cover 72 through the clamping plate 813, thereby reducing the occupied area of the junction box 7 and improving the transportation convenience of the waste junction box 7. Then, the first bolt 73 is unscrewed to separate the upper cover 72 from the base 71, the connecting wires in the junction box 7 are disassembled, and a new junction box 7 is replaced.

The implementation principle of the power monitoring system of the power plant in the embodiment of the application is as follows: the power generation equipment is connected with the detection device 1 through a lead, and the lead connected with the power generation equipment is connected with the lead connected with the detection device 1 through a junction box 7.

When the pilot connection is completed, the first bolt 73 is tightened. And the heat radiating plate 81 is locked with the fixing plate 831 by the second bolt 832.

When rainfall occurs or the temperature of the environment in which the junction box 7 is located is low, the temperature sensor 76 transmits a detected temperature signal to the second controller 75, and the second controller 75 controls the motor of the fan 74 to stop rotating.

When strong rainfall occurs, much rainwater is collected in the cavity formed between the connection plate 83 and the flap 833, so that the heat dissipation plate 81 moves into the junction box 7. After the rainfall is finished, the water in the cavity flows out of the water flowing hole 8331 and then flows downwards along the inclined plate 834, and in the flowing process, heat around the junction box 7 is absorbed along with evaporation of the water.

When the terminal box 7 needs to be replaced after being used for a long time, the second bolt 832 is unscrewed to separate the heat dissipation plate 81 from the connection plate 83, then the heat dissipation plate 81 is pressed down along the insertion hole 721, the clamping plate 813 abuts against the inner wall of the upper cover 72 at the insertion hole 721, and the position of the heat dissipation plate 81 in the upper cover 72 is locked through the clamping plate 813.

Then, the first bolt 73 is unscrewed, so that the upper cover 72 is separated from the base 71, and the connection wires in the wire box 7 are disassembled.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: equivalent changes in structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. A power plant power monitoring system, characterized by: the heat dissipation device comprises power generation equipment and a detection device (1), a junction box (7) is connected between the power generation equipment and the detection device (1), a heat dissipation assembly is installed in the junction box (7), the heat dissipation assembly comprises a heat dissipation plate (81) connected with the junction box (7), an insertion hole (721) is formed in the outer wall of the junction box (7), the heat dissipation plate (81) is inserted into the insertion hole (721), and one end, far away from the junction box (7), of the heat dissipation plate (81) is located outside the junction box (7);

one end of the heat dissipation plate (81) far away from the junction box (7) is detachably connected with a horizontally placed connecting plate (83);

the baffle plate (833) is fixedly connected to the side wall of the periphery of the connecting plate (83), a plurality of water flow holes (8331) are formed in the baffle plate (833), and the inclined plate (834) used for guiding water flow is further fixedly connected to the side wall of the connecting plate (83) at the bottom of each water flow hole (8331);

the upper surface of the connecting plate (83) far away from the junction box (7) is fixedly connected with a guide plate (835) with a convex middle part, the periphery of the guide plate (835) is fixedly connected with a baffle plate (833), and the height of the lower end, connected with the baffle plate (833), of the guide plate (835) is lower than the opening height of the water flowing hole (8331);

the junction box (7) comprises an upper cover (72) and a base (71) which are buckled, a heat conducting plate (8) is fixedly connected in the upper cover (72), a first spring (82) is fixedly connected with the heat conducting plate (8), and the other end of the first spring (82) is fixedly connected with a heat dissipation plate (81);

the hole wall of the inserting hole (721) is provided with a waterproof sealing layer (722), and the waterproof sealing layer (722) is abutted against the side wall of the heat dissipation plate (81).

2. A power plant power monitoring system according to claim 1, wherein: the inserting holes (721) are formed in the side face, far away from the base (71), of the upper cover (72), and the side face, far away from the base (71), of the upper cover (72) is fixedly connected with the fan (74).

3. A power plant power monitoring system according to claim 2, wherein: a temperature sensor (76) is installed in the junction box (7), the temperature sensor (76) is electrically connected with a second controller (75), and the second controller (75) is electrically connected with a motor of the fan (74).