CN213629053U

CN213629053U - Self-heavy type non-return air valve of wind generating set

Info

Publication number: CN213629053U
Application number: CN202022679111.3U
Authority: CN
Inventors: 李博文; 孙羽; 何晟
Original assignee: Feichao Shanghai Environmental Technology Co ltd
Current assignee: Feichao Shanghai New Materials Co ltd
Priority date: 2020-11-19
Filing date: 2020-11-19
Publication date: 2021-07-06
Anticipated expiration: 2030-11-19

Abstract

The utility model provides a wind generating set self-heavy type non-return air valve, which comprises a frame body, a butt part arranged on the frame body, a plurality of louver blades which are sequentially arranged along the longitudinal direction and can be rotatably arranged on the frame body; the leeward side of next shutter blade of shutter blade bottom laminating, the shutter blade top surface is to the windward side of shutter blade, is located the shutter blade top of topmost and is located the butt piece of all laminating in the shutter blade bottom of bottommost. The utility model provides a wind generating set is from heavy non return air valve, wind power generation storehouse during stop work, the tripe piece can be closed under the dead weight effect, last tripe piece bottom laminating next tripe piece lee face, so that when the waste gas backward flow in the tuber pipe blows to tripe piece lee face, the tripe piece can not rotate, sealing performance between the adjacent tripe piece is good, no clearance, can effectively prevent waste gas refluence and go into in the wind power generation storehouse, and can accord with the requirement of the volume of leaking under pressure drop and the high temperature waste gas.

Description

Self-heavy type non-return air valve of wind generating set

Technical Field

The utility model relates to a non return blast gate technical field especially relates to wind generating set from heavy type non return blast gate.

Background

During operation, wind generators emit large amounts of exhaust gases, and the temperature of these exhaust gases can reach a maximum of 100 ℃. When the wind driven generator works, the waste gas is required to be ensured to be smoothly discharged out of a cabin of the wind driven generator, and the pressure drop is not more than 140Pa when the wind speed is 16 m/s. When the wind power generator stops running, the gas which is required to prevent the waste gas from flowing backwards and prevent the waste gas from flowing backwards drives the wind power generator to rotate backwards, and the leakage quantity does not exceed 5.68m when the backpressure is 1000Pa³And/min. The check air valve in the current market can not meet the requirements of the pressure drop and the leakage amount of the high-temperature waste gas at the same time, so that the development of the self-heavy check air valve which can meet the pressure drop and the leakage amount of the high-temperature waste gas at the same time is needed.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to disclose wind generating set is from heavy non return air valve, wind power generation storehouse during stop work, the tripe piece can be closed under the dead weight effect, last tripe piece bottom laminating next tripe piece lee face, so that when the waste gas backward flow in the tuber pipe blows to tripe piece lee face, the tripe piece can not rotate, sealing performance between the adjacent tripe piece is good, the zero clearance, can effectively prevent waste gas refluence and enter wind power generation storehouse, and can accord with the requirement of pressure drop and high temperature waste gas leakage volume down.

In order to achieve the purpose, the utility model provides a self-heavy type non-return air valve of a wind generating set, which comprises a frame body, an abutting part arranged on the frame body, and a plurality of louver blades which are sequentially arranged along the longitudinal direction and can be rotatably arranged on the frame body; the leeward side of next shutter blade of shutter blade bottom laminating, the shutter blade top surface is to the windward side of shutter blade, is located the shutter blade top of topmost and is located the butt piece of all laminating in the shutter blade bottom of bottommost.

In some embodiments, the louver comprises a plurality of threaded shafts, a plurality of bearing seats sequentially arranged along the longitudinal direction are installed on the side frame of the frame body, bearings are arranged in the bearing seats, the threaded shafts extend into the bearings and are matched with the bearings, and the tops of the louver blades are connected to the threaded shafts.

In some embodiments, the bearing is a deep groove ball bearing.

In some embodiments, the abutting part comprises a baffle plate respectively arranged on the top frame and the bottom frame of the frame body, and a single-sided adhesive sealing gasket attached to one side of the baffle plate; the top ends of the louver blades positioned at the top and the bottom ends of the louver blades positioned at the bottom are both attached to a single-sided adhesive sealing gasket.

In some embodiments, the baffle is attached to the frame by a spike.

In some embodiments, the louver top and bottom are hook-shaped.

In some embodiments, the louvres are formed with abutments at both top and bottom ends.

In some embodiments, the abutment is circular in cross-section.

In some embodiments, the louver blades are provided with a plurality of reinforcing ribs on the windward side.

In some embodiments, the frame and the louvres are both made of aluminum alloy sections.

Compared with the prior art, the beneficial effects of the utility model are that: the utility model provides a wind generating set is from heavy non return air valve, wind power generation storehouse during stop work, the tripe piece can be closed under the dead weight effect, last tripe piece bottom laminating next tripe piece lee face, so that when the waste gas backward flow in the tuber pipe blows to tripe piece lee face, the tripe piece can not rotate, sealing performance between the adjacent tripe piece is good, no clearance, can effectively prevent waste gas refluence and go into in the wind power generation storehouse, and can accord with the requirement of the volume of leaking under pressure drop and the high temperature waste gas.

Drawings

Fig. 1 is a schematic structural view of a self-heavy type non-return air valve of a wind generating set shown in the utility model;

FIG. 2 is a partial schematic structural view of the side frame shown in FIG. 1;

FIG. 3 is a cross-sectional view taken along line CC of FIG. 1;

FIG. 4 is an enlarged view of reference character A in FIG. 3;

FIG. 5 is an enlarged view of reference number B in FIG. 3;

fig. 6 is an enlarged view of reference numeral D in fig. 3.

Detailed Description

The present invention is described in detail with reference to the embodiments shown in the drawings, but it should be understood that these embodiments are not intended to limit the present invention, and those skilled in the art should understand that the functions, methods, or structural equivalents or substitutions made by these embodiments are within the scope of the present invention.

The self-heavy type non-return air valve of the wind generating set shown in fig. 1-6 is installed at the joint of a wind generating set bin and an air pipe, and comprises a rectangular frame body 1, wherein the frame body 1 is formed by welding a top frame 11, a bottom frame 12 and two side frames 13.

The louver comprises four louver blades 5 which are sequentially arranged along the longitudinal direction and can be rotatably installed on the frame body 1. Specifically, still include a plurality of threaded shaft 2, the welding has four bearing frames 4 of arranging in proper order along vertical on the side frame 13 of framework 1, be equipped with bearing 3 in the bearing frame 4, threaded shaft 2 extends into in the bearing 3 and cooperates with bearing 3. The top of the louver blade 5 is connected to the threaded shaft 2, so that the louver blade can be freely rotated to be opened and closed, and ventilation or air return stopping can be realized. The bearing 3 is a deep groove ball bearing, and the opening resistance of the louver blade 5 is reduced.

The bottom end 56 of the louver 5 is attached to the leeward surface 52 of the next louver 5, and the top end 55 of the louver 5 faces the windward surface 51 of the next louver 5.

Waste gas in the wind power generator bin blows to the windward side 51 of the louver blade 5, the louver blade 5 rotates by taking the top end 55 as a fulcrum under the pushing of the waste gas, the bottom end 56 of the louver blade 5 is separated from the leeward side 52 of the next louver blade 5, the louver blade 5 is pushed open and keeps ventilation, and the waste gas enters the air pipe. Wind power generation storehouse stop work during, shutter plate 5 resets closure under the dead weight effect, waste gas backward flow in the tuber pipe blows to shutter plate 5's leeward face 52, and shutter plate 5 bottom 56 laminates next shutter plate 5's leeward face 52, shutter plate 5 can not rotate, sealing performance between the adjacent shutter plate 5 is good, the zero clearance, and the return air volume is big more, the butt between the adjacent shutter plate 5 is inseparabler more, can prevent waste gas refluence enter into the wind power generation storehouse, and can accord with the requirement of the volume of leaking under pressure drop and the high temperature waste gas.

The frame body comprises a top frame 11 and a bottom frame 12, and is characterized by further comprising two abutting parts arranged on the frame body 1, wherein the abutting parts are respectively positioned on the top frame 11 and the bottom frame 12. The abutting part comprises a baffle 6 and a single-sided adhesive sealing gasket 7 attached to one side of the baffle 6. The baffle 6 is connected to the frame 1 by a spike 61. The louvre 5 top 55 that is located the top all laminates single-sided adhesive gasket 7 with louvre 5 bottom 56 that is located the bottommost, on the one hand, when can preventing the non return wind, is located louvre 5 at the top and the louvre 5 that is located the bottommost takes place to rotate, and on the other hand, the leakproofness is good, and the zero clearance can prevent that waste gas from flowing backwards into in the wind energy power generation storehouse.

The top and the bottom of the louver 5 are both in the shape of a hook 54, so that the bottom end 56 of the louver 5 is attached to the leeward side 52 of the next louver 5, and the top end 55 of the louver 5 faces the windward side 51 of the next louver 5. The top end 55 and the bottom end 56 of the louver blade 5 are both provided with abutting parts, the cross sections of the abutting parts are circular, spherical surfaces and planes are in contact, no gap exists, the sealing performance is good, and waste gas can be prevented from flowing back into the wind power generator bin.

The windward side 51 of the louver blade 5 is provided with a plurality of reinforcing ribs 53 to increase the strength and prevent the louver blade 5 from deforming. The frame body 1 and the louver blades 5 are made of aluminum alloy sections, so that the structure is firm, and the louver blades are not easy to deform.

The above list of details is only for the practical implementation of the present invention, and they are not intended to limit the scope of the present invention, and all equivalent implementations or modifications that do not depart from the technical spirit of the present invention should be included in the scope of the present invention.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims

1. The wind generating set self-heavy type non-return air valve is characterized by comprising a frame body, an abutting piece arranged on the frame body, and a plurality of louver blades which are sequentially arranged along the longitudinal direction and can be rotatably arranged on the frame body; the leeward side of next shutter blade of shutter blade bottom laminating, the shutter blade top surface is to the windward side of shutter blade, is located the shutter blade top of topmost and is located the butt piece of all laminating in the shutter blade bottom of bottommost.

2. The wind generating set self-heavy type wind check valve according to claim 1, further comprising a plurality of threaded shafts, wherein a plurality of bearing seats are sequentially arranged along the longitudinal direction on the side frame of the frame body, bearings are arranged in the bearing seats, the threaded shafts extend into the bearings and are matched with the bearings, and the tops of the louver blades are connected to the threaded shafts.

3. The wind turbine generator system self-heavy type air check valve according to claim 2, wherein the bearing is a deep groove ball bearing.

4. The wind generating set self-heavy type wind check valve according to claim 1, wherein the abutting piece comprises a baffle plate respectively arranged on a top frame and a bottom frame of the frame body, and a single-sided adhesive sealing gasket attached to one side of the baffle plate; the top ends of the louver blades positioned at the top and the bottom ends of the louver blades positioned at the bottom are both attached to a single-sided adhesive sealing gasket.

5. The wind generating set self-heavy type check valve of claim 4, wherein the baffle is connected to the frame body through a rivet.

6. The wind generating set self-heavy type check valve of claim 1, wherein the top and the bottom of the louver blade are both in a hook shape.

7. The wind turbine generator system self-heavy check valve of claim 6, wherein the top end and the bottom end of the louver blade are formed with abutting parts.

8. The wind turbine generator system self-heavy check valve of claim 7, wherein the abutment is circular in cross section.

9. The wind generating set self-heavy type wind check valve according to claim 1, wherein a plurality of reinforcing ribs are arranged on the windward side of the louver blades.

10. The wind turbine generator system self-heavy type check valve according to claim 1, wherein the frame body and the louver blades are made of aluminum alloy sections.