阅读说明：本技术 一种风电机组变频器模块内部滤网 (Filter screen inside frequency converter module of wind turbine generator ) 是由 吕大朋 张永欣 薛莹 于 2019-10-08 设计创作，主要内容包括：本发明公开了一种风电机组变频器模块内部滤网,属于风电机组配件技术领域,解决了现有技术中的风电机组滤网受环境中风沙等问题影响容易阻塞、更换不便的问题,本发明包括滤网框架,所述滤网框架为中空的长方体形状,所述滤网框架上相对的两个面上安装有滤网边框,所述滤网边框均卡接于滤网框架上的卡接条下方,滤网边框上安装有滤网,所述滤网均由尼龙滤网组成。本发明拆装方便快捷,省时省力,使用寿命长。(The invention discloses a filter screen inside a wind turbine generator frequency converter module, belongs to the technical field of wind turbine generator accessories, and solves the problems that a wind turbine generator filter screen in the prior art is easily blocked and is inconvenient to replace due to the influence of wind sand and the like in the environment. The invention has the advantages of convenient and fast disassembly and assembly, time and labor saving and long service life.)

1. The utility model provides an inside filter screen of wind turbine generator system converter module, includes filter screen frame (1), its characterized in that, filter screen frame (1) is hollow cuboid shape, install filter screen frame (2) on filter screen frame (1) two relative faces, joint strip (5) below on filter screen frame (1) of equal joint of filter screen frame (2), install filter screen (3) on filter screen frame (2), filter screen (3) comprise by nylon filter screen (3).

2. The filter screen inside the frequency converter module of the wind turbine generator system according to claim 1, wherein the clamping strip (5) is integrally formed with the filter screen frame (1), the filter screen frame (1) is made of stainless steel plates, and the edge portion of the stainless steel plate of the filter screen frame (1) is bent by 90 degrees to form the clamping strip (5).

3. The internal filter screen of the wind turbine generator frequency converter module according to claim 2, wherein the clamping strips (5) comprise long clamping strips (5) and short clamping strips (5), the long clamping strips (5) are located above the short clamping strips (5), and gaps for installing the filter screen frames (2) are reserved between the long clamping strips (5) and the short clamping strips (5).

4. The filter screen inside the wind turbine generator frequency converter module according to claim 1, wherein a pull button (4) is installed on a side surface of the filter screen frame (1), and the pull button (4) is fixed on the filter screen frame (1) through a rivet.

Technical Field

The invention belongs to the technical field of wind turbine generator accessory, and particularly relates to an internal filter screen of a wind turbine generator frequency converter module.

Background

The wind turbine generator system is in a severe environment, the sand storm is large, and the overtemperature phenomenon easily occurs to the frequency converter module, so that the frequency converter is in a fault shutdown state, and the generating capacity of a fan is influenced. The main reason for finding the module overtemperature through inspection is that the frequency converter cooling system has problems, mainly because the filter screen of the frequency converter module is blocked. The filter screen that converter filter screen used now is the paper filter screen, needs to change once every year, and the expense is higher. In the daily maintenance process, the paper filter screen is easy to block and deform and damage during cleaning.

Disclosure of Invention

The invention aims to:

the filter screen in the frequency converter module of the wind turbine generator is provided for solving the problems that the filter screen of the wind turbine generator in the prior art is easily blocked and inconvenient to replace due to the influence of wind sand and the like in the environment.

The technical scheme adopted by the invention is as follows:

the utility model provides an inside filter screen of wind turbine generator system converter module, includes filter screen frame, its characterized in that, filter screen frame is hollow cuboid shape, install the filter screen frame on two relative faces on the filter screen frame, the equal joint strip below of joint on filter screen frame of filter screen frame installs the filter screen on the filter screen frame, the filter screen comprises the nylon filter screen.

Further, joint strip and filter screen frame integrated into one piece, filter screen frame comprises corrosion resistant plate material, filter screen frame's corrosion resistant plate edge part is buckled 90 and is formed the joint strip.

Further, the joint strip includes long joint strip and short joint strip, long joint strip is located short joint strip top, leaves the clearance that is used for installing the filter screen frame between long joint strip and the short joint strip.

Furthermore, install on the side of filter screen frame and draw the knot, draw the knot to pass through fix with rivet on the filter screen frame.

The working principle of the invention is as follows:

according to the invention, the mounting structure that the filter screen frame is inserted into the clamping strips of the filter screen frame is adopted, the nylon filter screen is firstly fixed on the filter screen frame during mounting, after the nylon filter screen frame and the filter screen are fixed, the nylon filter screen frame and the filter screen are inserted into the gap between the long clamping strips and the short clamping strips together for fixing, and then the nylon filter screen frame and the filter screen frame are mounted into the frequency converter module of the wind power generating set, when maintenance is required, the nylon filter screen frame and the filter screen frame can be taken out by pulling the pull buckle, and the filter screen frame can be.

The tab is mounted on the stainless steel frame with a rivet.

In summary, due to the adoption of the technical scheme, the invention has the beneficial effects that:

1. change simple and conveniently, the filter screen frame is bayonet installation, and installation and taking out are convenient and fast more than current paper filter screen, and labour saving and time saving has practiced thrift routine maintenance's time cost and human cost, and economic effect is showing.

2. The filter screen frame is light in weight, the filter screen frame is composed of thin stainless steel frames, operators can easily take the filter screen frame up and down, and the gravity load of the wind turbine generator is reduced.

3. Not being restricted by weather elements, the whole frame that the stainless steel is constituteed can effectively prevent the corrosion under the adverse circumstances, and the nylon filter screen compares in the paper filter screen, and its toughness improves by a wide margin, and is difficult for being blocked by the sand blown by the wind, adapts to open-air environment more.

4. The filter screen has the advantages of simple and effective structure, low manufacturing cost, long service life and capability of saving a large amount of cost after long-term use.

5. The service life is obviously prolonged, the whole filter screen frame does not need to be replaced, and only a local filter screen needs to be replaced when the filter screen frame is damaged.

Drawings

The invention will now be described, by way of example, with reference to the accompanying drawings, in which:

FIG. 1 is a perspective view of the present invention;

FIG. 2 is a front view of FIG. 1;

FIG. 3 is a top view of FIG. 2;

fig. 4 is a block diagram of the screen frame of fig. 2.

Description of reference numerals:

1-filter screen frame, 2-filter screen frame, 3-filter screen, 4-pull buckle and 5-clamping strip.

Detailed Description

All of the features disclosed in this specification, or all of the steps in any method or process so disclosed, may be combined in any combination, except combinations of features and/or steps that are mutually exclusive.

The present invention will be described in detail with reference to fig. 1 to 4.