CN216518427U

CN216518427U - Wind-powered electricity generation blade apex lightning arrester

Info

Publication number: CN216518427U
Application number: CN202220112113.0U
Authority: CN
Inventors: 刘少强; 党政文; 姚文武; 杜广帅
Original assignee: Huaeng International Power Co ltd Henan Clean Energy Branch
Current assignee: Huaeng International Power Co ltd Henan Clean Energy Branch
Priority date: 2022-01-17
Filing date: 2022-01-17
Publication date: 2022-05-13
Anticipated expiration: 2032-01-17

Abstract

The utility model discloses a wind power blade tip lightning protection device, which relates to the technical field of wind power blade lightning protection, and aims at solving the problem that when the lightning protection device is used, the lightning protection effect is poor due to the fact that the lightning protection device is usually difficult to completely insulate from the surface of a wind power blade. The lightning protection device is novel in structure, improves the lightning protection effect and is suitable for popularization.

Description

Wind-powered electricity generation blade apex lightning arrester

Technical Field

The utility model relates to the technical field of wind power blade lightning protection, in particular to a lightning protection device for a wind power blade tip.

Background

The wind driven generator is generally arranged on the field high ground, and the fan blade is easy to be struck by lightning. At present, the general lightning protection technology focuses on how to quickly introduce lightning current into the ground when a lightning strike occurs, so that the current led into equipment by the lightning is reduced as much as possible, the safety of the equipment and personnel is guaranteed to the maximum extent, and the loss is reduced to the minimum degree.

When the lightning arrester is used, the lightning arrester is poor in lightning protection effect due to the fact that complete insulation with the surface of the wind power blade is difficult to achieve. Therefore, in order to solve the problems, a wind power blade tip lightning arrester is provided.

SUMMERY OF THE UTILITY MODEL

The lightning arrester for the wind power blade tip provided by the utility model solves the problem of poor lightning arresting effect caused by the fact that the lightning arrester is difficult to be thoroughly insulated from the surface of the wind power blade when in use.

In order to achieve the purpose, the utility model adopts the following technical scheme:

a wind power blade tip lightning arrester comprises a supporting box and a blade body, wherein the supporting box and the blade body are in sleeved connection, one side, close to the blade body, of the supporting box is in an open arrangement, a rubber ring is fixedly installed at the open position of the supporting box, the rubber ring is in a joint arrangement with the blade body, a plurality of bolts distributed in an array are in threaded connection with the supporting box, the bolts and the blade body are in a penetrating arrangement, an insulating layer is plated on the bolts, a limiting assembly is arranged in the supporting box, a filling cavity is arranged in the supporting box and is matched with the blade body, a gas injection assembly is arranged at the top of the supporting box, a conductive block is fixedly installed in the supporting box, a lightning rod is fixedly installed at one end, far away from the blade body, of the conductive block, the lightning rod is in a penetrating arrangement with the supporting box, and is connected with a wire, the wire and the supporting box are arranged in a penetrating mode.

Preferably, one side of the rubber ring close to the supporting box is provided with a round angle.

Preferably, spacing subassembly includes the insulated column, fixed mounting has a plurality of insulated columns that are array distribution in the support box, the insulated column is the laminating setting with the blade body, the insulated column is located and fills the intracavity.

Preferably, the gas injection subassembly includes gas injection pipe and rubber buffer, the top fixed mounting who supports the box has the gas injection pipe, the gas injection pipe is the intercommunication setting with the blade body, slidable mounting has the rubber buffer in the gas injection pipe.

Preferably, the lateral wall fixed mounting of supporting the box has two locating parts, two the locating part is coaxial setting, the locating part is the slip set of cup jointing with the wire.

Preferably, one side of the blade body close to the wire is fixedly provided with a limiting pipe, and the limiting pipe is sleeved with the wire.

The utility model has the beneficial effects that:

through the installation to supporting box cooperation gas injection subassembly, insulating bolt will support the fixed cup joint of box on the blade body, inject nitrogen gas through the gas injection pipe to filling the intracavity, improved the effect of keeping apart the electricity to the blade, improved lightning-arrest effect.

In conclusion, the lightning protection device improves the lightning protection effect, solves the problem of poor lightning protection effect caused by the fact that the lightning protection device is difficult to be completely insulated from the surface of the wind power blade when in use, and is suitable for popularization.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a cross-sectional view of the present invention;

fig. 3 is an exploded view of the present invention.

Reference numbers in the figures: 1. a support box; 2. a blade body; 3. a rubber ring; 4. a bolt; 5. an insulating column; 6. filling the cavity; 7. a gas injection pipe; 8. a rubber plug; 9. a conductive block; 10. a lightning rod; 11. a wire; 12. a limiting member; 13. and a limiting pipe.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.

Referring to fig. 1-3, a wind power blade apex lightning arrester comprises a supporting box 1 and a blade body 2, wherein the supporting box 1 and the blade body 2 are in sleeve joint, one side of the supporting box 1 close to the blade body 2 is in open arrangement, a rubber ring 3 is fixedly installed at the open position of the supporting box 1, one side of the rubber ring 3 close to the supporting box 1 is provided with a round angle, the butt joint efficiency of the supporting box 1 and the blade body 2 is improved, the rubber ring 3 and the blade body 2 are in fit arrangement and have a sealing function, a plurality of bolts 4 distributed in an array form are in threaded connection on the supporting box 1, the bolts 4 and the blade body 2 are in penetrating arrangement, the bolts 4 are plated with insulating layers and have a fixing function, a filling cavity 6 is arranged in the supporting box 1, the filling cavity 6 is matched with the blade body 2 and has a bearing function on nitrogen, and a conductive block 9 is fixedly installed in the supporting box 1, have electrically conductive effect, keep away from the one end fixed mounting of blade body 2 at conducting block 9 and have lightning rod 10, lightning rod 10 is the setting of running through with supporting box 1, has the effect of drawing electricity.

Referring to fig. 2, be provided with spacing subassembly in the support box 1, spacing subassembly includes insulated column 5, and fixed mounting has a plurality of insulated columns 5 that are array distribution in supporting box 1, and insulated column 5 is the laminating setting with blade body 2, and insulated column 5 is located and fills chamber 6, has the limiting displacement to blade body 2.

Referring to fig. 3, the top of supporting box 1 is provided with the gas injection subassembly, and the gas injection subassembly includes gas injection pipe 7 and rubber buffer 8, has gas injection pipe 7 at the top fixed mounting who supports box 1, and gas injection pipe 7 is the intercommunication setting with blade body 2, has the drainage effect, and slidable mounting has rubber buffer 8 in gas injection pipe 7, has sealing effect.

Referring to fig. 3, conducting block 9 is connected with wire 11, wire 11 is the through setting with supporting box 1, has the electrically conductive effect, lateral wall fixed mounting at supporting box 1 has two locating parts 12, two locating parts 12 are coaxial setting, locating part 12 is the slip with wire 11 and cup joints the setting, has the limiting displacement to wire 11, one side fixed mounting that is close to wire 11 at blade body 2 has spacing pipe 13, spacing pipe 13 is with wire 11 and cup joints the setting, has the limiting displacement to wire 11.

The working principle is as follows: when the lightning protection device is used, the support box 1 is firstly sleeved on the blade body 2 in a sliding mode, the rubber ring 3 has an electricity isolation effect, the round angle on the rubber ring 3 improves the butt joint efficiency, the insulating column 5 has a positioning effect of the support box 1, then the bolt 4 is taken to fix the support box 1 on the blade body 2, then nitrogen is injected into the filling cavity 6 through the gas injection pipe 7, the electricity isolation effect is achieved, and the lightning rod 10 has an effect of introducing current to the ground in cooperation with the lead 11.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and equivalent alternatives or modifications according to the technical solution of the present invention and the inventive concept thereof should be covered by the scope of the present invention.

Claims

1. The utility model provides a wind-powered electricity generation blade apex lightning arrester, includes support box (1) and blade body (2), its characterized in that, support box (1) and blade body (2) are to cup joint the setting, one side that support box (1) is close to blade body (2) is open setting, the open position fixed mounting of support box (1) has rubber ring (3), rubber ring (3) are the laminating setting with blade body (2), threaded connection has a plurality of bolts (4) that are array distribution on support box (1), bolt (4) are the through setting with blade body (2), bolt (4) have plated the insulating layer, be provided with spacing subassembly in support box (1), be provided with gas injection chamber (6) in support box (1), fill chamber (6) and blade body (2) phase-match, the top of support box (1) is provided with the gas injection subassembly, support box (1) internal fixed mounting have conducting block (9), the one end fixed mounting that blade body (2) were kept away from in conducting block (9) has lightning rod (10), lightning rod (10) are with supporting box (1) and run through the setting, conducting block (9) are connected with wire (11), wire (11) are with supporting box (1) and run through the setting.

2. The wind power blade tip lightning arrester according to claim 1, characterized in that one side of the rubber ring (3) close to the supporting box (1) is provided with a round angle.

3. The wind power blade tip lightning protection device according to claim 1, wherein the limiting assembly comprises an insulating column (5), a plurality of insulating columns (5) distributed in an array are fixedly installed in the supporting box (1), the insulating column (5) is attached to the blade body (2), and the insulating column (5) is located in the filling cavity (6).

4. The wind-powered electricity generation blade apex lightning arrester of claim 1, characterized in that, the gas injection subassembly includes gas injection pipe (7) and rubber buffer (8), the top fixed mounting of support box (1) has gas injection pipe (7), gas injection pipe (7) are the intercommunication setting with blade body (2), slidable mounting has rubber buffer (8) in gas injection pipe (7).

5. The wind power blade tip lightning arrester according to claim 1, characterized in that two limiting members (12) are fixedly mounted on a side wall of the supporting box (1), the two limiting members (12) are coaxially arranged, and the limiting members (12) are slidably sleeved with the conducting wire (11).

6. The wind power blade tip lightning arrester according to claim 1, characterized in that a limiting pipe (13) is fixedly installed on one side of the blade body (2) close to the lead (11), and the limiting pipe (13) is sleeved with the lead (11).