CN2190710Y

CN2190710Y - Rotary filtering net

Info

Publication number: CN2190710Y
Application number: CN 94241919
Authority: CN
Inventors: 张文珍
Original assignee: HUADONG POWER EQUIPMENT REPAIRING AND BUILDING FACTORY WUXI COUNTY
Current assignee: Wuxi Huadong Electric Power Equipment Co., Ltd.
Priority date: 1994-05-21
Filing date: 1994-05-21
Publication date: 1995-03-01
Anticipated expiration: 2004-05-21

Abstract

The utility model belongs to a water filtering device which is especially used for power plants. The utility model comprises an annular guide rail, a chain plate which can move in the guide rail, rolling wheels and a filtering net which is connected with the chain plate; the upper end of the annular guide rail is narrower, and the lower end of the annular guide rail is wider. Driving chain wheels are arranged on the upper end of the annular chain plate; the filtering net presents a polygonal shape or a conical curve shape, sealing strips are arranged on the connecting point of each section of the filtering net. A test rod which can be used for testing the elastic degree of the chain plate is also installed on the annular guide rail.

Description

Rotary filtering net

The utility model belongs to the water filtering device of a kind of power station special use.

Circulating water pump ingress in the power station must be provided with rotary sieve usually, with organic floating materials such as the weeds in the interception water, aquatic organism, various rubbish, common rotary sieve is the filter screen of mounting plane shape on annular carrier bar, between every joint filter screen, there is not Stamping Steel Ribbon, therefore, often have impurity by the gap between filter screen, the filter area of plane filter screen is also smaller.

The purpose of this utility model is a kind of sealing of design, the rotary sieve that filter area is bigger.

Its main technical schemes is that this rotary sieve comprises that the upper end is narrower, the ring-shaped guide rail of lower end broad (15), the roller (14) that can in guide rail, move and be connected filter screen (7) on the carrier bar, in annular carrier bar upper end driving sprocket wheel (2) is arranged, filter screen (7) is polygonal or conic is linear, the joint of every joint filter screen (7) is provided with Stamping Steel Ribbon (17), utilize scaffold (12) joint detection bar (8) in the lower end of ring-shaped guide rail (15), the upper end of test rod (8) is positioned at the guide rod (20) that is installed on the platform, guide rod is close to scale (19) is installed, and the pointer (18) that is connected test rod (8) upper end is pressed close to scale (19).

The utility model has the advantages that sealability is better, because between the filter screen of filter screen, between filter screen and the carrier bar and between carrier bar and the guide rail good seal arrangement is arranged all, the water after the water of filtered and the filtration is separated fully, improved water quality effectively, and working efficiency.After next filter screen employing polygonal or conic are linear,, therefore, improved water flow because of its filter area obtains increasing.The 3rd, after mechanical type carrier bar tightness detector has been installed on the novel filter screen, can reflect the tightness of carrier bar intuitively, in time adjust, to control the degree of tightness of carrier bar effectively, machinery is under the optimum state works, improve mechanical life.

Fig. 1 is a structural drawing of the present utility model.

Fig. 2 is the enlarged view of B among Fig. 1.

Fig. 3 has removed enlarged view behind carrier bar and the sprocket wheel for A place among Fig. 2.

Fig. 4 is detection device figure.

Fig. 5 is the left view of Fig. 4.

As shown in the figure: up-narrow and down-wide ring-shaped guide rail (15) is installed in the groove that is built up by concrete (9), its water intake (10), (13) be positioned at both sides, in the middle of water outlet (11) is positioned at, the chain that is made of carrier bar (6) and sprocket wheel (14) is installed in the guide rail, filter screen (7) triangular in shape is installed on carrier bar, driving sprocket wheel (2) is arranged in the upper end of chain, there is storage slag bucket (5) below of sprocket wheel (2), case (3) is arranged above filter screen, the nozzle (1) that can wash filter screen is arranged under the case, utilize scaffold (12) joint detection bar (8) in the lower end of ring-shaped guide rail, the upper end of test rod (8) is positioned at the guide rod (20) that is installed on the platform, guide rod is close to scale (19) is installed, and the pointer (18) that is connected test rod (8) upper end is pressed close to scale (19).The plate washer (16) that seals is arranged between carrier bar (6) and guide rail (15), Stamping Steel Ribbon (17) is arranged between every joint filter screen.Among Fig. 1, (4) are the detecting head that is made of scale (19), pointer (18) etc.

Claims

1, a kind of rotary sieve, comprise that the upper end is narrower, the ring-shaped guide rail of lower end broad (15), the roller (14) that can in guide rail, move and be connected filter screen (7) on the carrier bar, in annular carrier bar upper end driving sprocket wheel (2) is arranged, it is characterized in that filter screen (7) is polygonal or conic is linear, in the joint of every joint filter screen (7) Stamping Steel Ribbon (17) is set, utilize scaffold (12) joint detection bar (8) in the lower end of ring-shaped guide rail (15), the upper end of test rod (8) is positioned at the guide rod (20) that is installed on the platform, guide rod is close to scale (19) is installed, and the pointer (18) that is connected test rod (8) upper end is pressed close to scale (19).